Is semi trailer retrofitted with drive
Publish: 2021-05-13 15:33:37
1. Packing (pulling boxes) will not be changed, but adding permanent boxes will be changed.
2. The elevated railings of freight cars are modified
modification of freight car: generally, it means that the appearance of the car does not conform to the driving license, such as adding water tank, welding rope tightener, heightening railings, not putting on groove, etc., and even installing air conditioner< 1. Check whether the engine, chassis, body and its auxiliary equipment are clean, complete and effective, whether the paint surface is uniform and beautiful, whether the main assemblies are replaced, and whether they are consistent with the initial inspection records
2. Check whether the braking performance, steering maneuverability, lighting, exhaust and other safety performance of the vehicle conform to & quot; Technical conditions for safe operation of motor vehicles; The requirements of the company
3. Check whether the vehicle has been modified, remodeled, remodeled, registered with driving license, number plate and vehicle file, whether it is consistent with the vehicle condition, whether it has changed, and whether the approval, change and change proceres have been handled
4. Whether the number plate, driving license and the enlarged words of the number plate printed on the vehicle are damaged, altered or illegible, and whether they need to be replaced
5. Whether the name of the company or the name of the street, township and town where the vehicle is located and the number of people limited to sit in the cab are written on both sides of the car door in Chinese imitation song style according to the regulations; Whether the outside of the rear panel of the truck (including the rear panel of the trailer) is painted with the vehicle number enlarged by 2 ~ 3 times according to the regulations, and whether & quot; is painted on both sides of the door of the indivial or joint venture car; Indivial & quot; word; The handwriting shall be clear, and the unit code or other patterns shall not be sprayed (special cases shall be approved by the vehicle management office)
modification of freight car: generally, it means that the appearance of the car does not conform to the driving license, such as adding water tank, welding rope tightener, heightening railings, not putting on groove, etc., and even installing air conditioner< 1. Check whether the engine, chassis, body and its auxiliary equipment are clean, complete and effective, whether the paint surface is uniform and beautiful, whether the main assemblies are replaced, and whether they are consistent with the initial inspection records
2. Check whether the braking performance, steering maneuverability, lighting, exhaust and other safety performance of the vehicle conform to & quot; Technical conditions for safe operation of motor vehicles; The requirements of the company
3. Check whether the vehicle has been modified, remodeled, remodeled, registered with driving license, number plate and vehicle file, whether it is consistent with the vehicle condition, whether it has changed, and whether the approval, change and change proceres have been handled
4. Whether the number plate, driving license and the enlarged words of the number plate printed on the vehicle are damaged, altered or illegible, and whether they need to be replaced
5. Whether the name of the company or the name of the street, township and town where the vehicle is located and the number of people limited to sit in the cab are written on both sides of the car door in Chinese imitation song style according to the regulations; Whether the outside of the rear panel of the truck (including the rear panel of the trailer) is painted with the vehicle number enlarged by 2 ~ 3 times according to the regulations, and whether & quot; is painted on both sides of the door of the indivial or joint venture car; Indivial & quot; word; The handwriting shall be clear, and the unit code or other patterns shall not be sprayed (special cases shall be approved by the vehicle management office)
3. A tractor is a large goods vehicle (semi-trailer) which is pulled by tools between the front and the trunk (that is, the front of the tractor can be separated from the original trunk and other trunk, and the trunk can also be separated from the original headstock and pulled by other headstock)
the front of a car with driving ability is called a tractor, and the back of a car without driving ability is called a trailer, which is towed by a tractor. There are two ways to connect a tractor and a trailer: the first is that the front half of the trailer is on the traction saddle above the rear section of the tractor, and the bridge behind the tractor bears part of the weight of the trailer, which is called semi-trailer; The second is that the front end of the trailer is connected to the rear end of the tractor. The tractor only provides forward pulling force to drag the trailer, but does not bear the downward weight of the trailer. This is full trailer. But whether semi-trailer or full trailer, the trailer has no driving capacity. The power of the automobile engine is transmitted to the drive axle through the clutch, transmission and transmission shaft, and then distributed to the half axle drive wheels. In this power transmission way, the drive axle is the last assembly, and its main components are the recer and differential
automobile differential is the main component of drive axle. Its function is to transmit power to the two axle shafts and allow the two axle shafts to rotate at different speeds, so that the wheels on both sides can run at different distances in the form of pure rolling as far as possible, so as to rece the friction between the tire and the ground. When the car turns a corner, the trajectory of the wheel is an arc. If the car turns left, the center of the arc is on the left side, at the same time, The curve of the right wheel is longer than that of the left wheel. In order to balance this difference, the left wheel should be slower, the right wheel should be faster, and different speeds should be used to make up for the distance difference. If the rear axle is made as a whole, the speed difference between the wheels on both sides cannot be achieved, that is, automatic adjustment cannot be made. In order to solve this problem, Louis Renault, the founder of Renault automobile company in France, designed the differential as early as 100 years ago. Ordinary differential consists of planetary gear, planetary carrier (differential case), half shaft gear and other parts. The power of the engine enters the differential through the transmission shaft, directly drives the planetary gear carrier, and then drives the left and right half shafts by the planetary gear to drive the left and right wheels respectively. The design requirements of the differential are: (left half shaft speed) + (right half shaft speed) = 2 (planetary carrier speed). When the car goes straight, the rotational speeds of the left and right wheels and the planetary gear carrier are equal and in a state of balance. When the car turns, the three balance states are destroyed, which leads to the decrease of the inner wheel speed and the increase of the outer wheel speed. This adjustment of the differential is automatic, which involves the "principle of minimum energy consumption", that is, all objects on the earth tend to be in the state of minimum energy consumption. For example, if a bean is put into a bowl, it will automatically stay at the bottom of the bowl and never stay on the wall of the bowl, because the bottom of the bowl is the position with the lowest energy (potential energy), and it will automatically choose to be still (with the lowest kinetic energy) instead of constantly moving. In the same way, the three-dimensional effect
wheels will automatically tend to the lowest energy consumption state when turning, and automatically adjust the speed of left and right wheels according to the turning radius. When turning, because the outer wheel has the phenomenon of slippage and the inner wheel has the phenomenon of slippage, the two driving wheels will proce two additional forces in opposite directions at this time. Due to the "principle of minimum energy consumption", the rotational speeds of the wheels on both sides will inevitably be different, thus destroying the balance of the three, and reflecting them on the half axle gear through the half axle, forcing the planetary gear to proce rotation, The speed of the outer half axle is increased and the speed of the inner half axle is decreased, so as to realize the difference of the speed of the wheels on both sides. If the driving wheels on both sides of the drive axle are rigidly connected by a whole shaft, the two wheels can only rotate at the same angle. In this way, when the car is turning, because the distance of the outer wheel is larger than that of the inner wheel, the outer wheel will proce slippage while rolling, while the inner wheel will proce slippage while rolling. Even if the car runs in a straight line, the wheel will slide because the road surface is uneven or even though the road surface is flat but the tire rolling radius is not equal (tire manufacturing error, different wear, uneven load or different air pressure). Wheel sliding not only aggravates tire wear, increases power and fuel consumption, but also makes steering difficult and braking performance worse. In order to prevent the wheel from sliding as much as possible, the structure must ensure that each wheel can rotate at different angles.
the front of a car with driving ability is called a tractor, and the back of a car without driving ability is called a trailer, which is towed by a tractor. There are two ways to connect a tractor and a trailer: the first is that the front half of the trailer is on the traction saddle above the rear section of the tractor, and the bridge behind the tractor bears part of the weight of the trailer, which is called semi-trailer; The second is that the front end of the trailer is connected to the rear end of the tractor. The tractor only provides forward pulling force to drag the trailer, but does not bear the downward weight of the trailer. This is full trailer. But whether semi-trailer or full trailer, the trailer has no driving capacity. The power of the automobile engine is transmitted to the drive axle through the clutch, transmission and transmission shaft, and then distributed to the half axle drive wheels. In this power transmission way, the drive axle is the last assembly, and its main components are the recer and differential
automobile differential is the main component of drive axle. Its function is to transmit power to the two axle shafts and allow the two axle shafts to rotate at different speeds, so that the wheels on both sides can run at different distances in the form of pure rolling as far as possible, so as to rece the friction between the tire and the ground. When the car turns a corner, the trajectory of the wheel is an arc. If the car turns left, the center of the arc is on the left side, at the same time, The curve of the right wheel is longer than that of the left wheel. In order to balance this difference, the left wheel should be slower, the right wheel should be faster, and different speeds should be used to make up for the distance difference. If the rear axle is made as a whole, the speed difference between the wheels on both sides cannot be achieved, that is, automatic adjustment cannot be made. In order to solve this problem, Louis Renault, the founder of Renault automobile company in France, designed the differential as early as 100 years ago. Ordinary differential consists of planetary gear, planetary carrier (differential case), half shaft gear and other parts. The power of the engine enters the differential through the transmission shaft, directly drives the planetary gear carrier, and then drives the left and right half shafts by the planetary gear to drive the left and right wheels respectively. The design requirements of the differential are: (left half shaft speed) + (right half shaft speed) = 2 (planetary carrier speed). When the car goes straight, the rotational speeds of the left and right wheels and the planetary gear carrier are equal and in a state of balance. When the car turns, the three balance states are destroyed, which leads to the decrease of the inner wheel speed and the increase of the outer wheel speed. This adjustment of the differential is automatic, which involves the "principle of minimum energy consumption", that is, all objects on the earth tend to be in the state of minimum energy consumption. For example, if a bean is put into a bowl, it will automatically stay at the bottom of the bowl and never stay on the wall of the bowl, because the bottom of the bowl is the position with the lowest energy (potential energy), and it will automatically choose to be still (with the lowest kinetic energy) instead of constantly moving. In the same way, the three-dimensional effect
wheels will automatically tend to the lowest energy consumption state when turning, and automatically adjust the speed of left and right wheels according to the turning radius. When turning, because the outer wheel has the phenomenon of slippage and the inner wheel has the phenomenon of slippage, the two driving wheels will proce two additional forces in opposite directions at this time. Due to the "principle of minimum energy consumption", the rotational speeds of the wheels on both sides will inevitably be different, thus destroying the balance of the three, and reflecting them on the half axle gear through the half axle, forcing the planetary gear to proce rotation, The speed of the outer half axle is increased and the speed of the inner half axle is decreased, so as to realize the difference of the speed of the wheels on both sides. If the driving wheels on both sides of the drive axle are rigidly connected by a whole shaft, the two wheels can only rotate at the same angle. In this way, when the car is turning, because the distance of the outer wheel is larger than that of the inner wheel, the outer wheel will proce slippage while rolling, while the inner wheel will proce slippage while rolling. Even if the car runs in a straight line, the wheel will slide because the road surface is uneven or even though the road surface is flat but the tire rolling radius is not equal (tire manufacturing error, different wear, uneven load or different air pressure). Wheel sliding not only aggravates tire wear, increases power and fuel consumption, but also makes steering difficult and braking performance worse. In order to prevent the wheel from sliding as much as possible, the structure must ensure that each wheel can rotate at different angles.
4. A semi-trailer is a trailer whose axle is placed behind the center of gravity of the vehicle (when the vehicle is uniformly loaded) and is equipped with a coupling device which can transmit horizontal or vertical forces to the tractor
detailed classification of semi-trailer:
self mping semi-trailer
self mping semi-trailer is suitable for the transportation of coal, ore, construction materials and other bulk goods. Dump semi-trailer can be divided into two categories according to its use: one is heavy and super heavy mp trailer for off highway transportation, which mainly undertakes the transportation tasks of large mines and projects, and is usually used with excavators. The other belongs to the light, medium and large ordinary self unloading trailers for road transportation, which mainly undertakes the transportation of loose goods such as sand, soil and coal, and is usually used with loaders. 1. It can effectively improve the transport efficiency of bulk and scattered goods transported by loaders when the car is tipped over and back. 2. The frame and the longitudinal beam of the carriage are welded with high-quality manganese plate, and there are stpan and rectangular container. It has high strength, strong lifting force, good rigidity and toughness, strong bearing capacity and no permanent deformation. 3. Excellent technology: the main parts are processed by advanced equipment, the longitudinal beam is made by automatic submerged arc welding, and the assembly machine is used for the accurate assembly of axle and leaf spring
low flat semi-trailer
the low flat semi-trailer is widely used for medium and long distance freight transportation because of its no rail on the vehicle. The frame of the series semi-trailer is a beam through structure, and the longitudinal beam adopts a straight movable gooseneck type. The web height is from 400mm to 550mm, the longitudinal beam is welded by automatic submerged arc welding, the frame is shot peened, and the cross beam is penetrated into the longitudinal beam and welded as a whole. It is composed of series dry plate spring and suspension support, with reasonable structure, strong rigidity and strength, and is used to support load and slow impact. The low flat semi-trailer is usually used to transport heavy vehicles (such as tractors, buses, special purpose vehicles, etc.), rail vehicles, mining machinery, forestry machinery, agricultural machinery (such as excavators, bulldozers, loaders, pavers, cranes, etc.) and other heavy goods. The lower the center of gravity, the better the stability and safety, The greater the ability to transport superelevation cargo and pass overhead obstacles. Low flat semi-trailer structure and loading low flat semi-trailer usually adopt concave beam (or well type) frame, namely the front section of the frame is gooseneck (the traction pin of the gooseneck front section is connected with the traction saddle of the tractor, the rear end of the gooseneck is connected with the semi-trailer frame), the middle section is the cargo platform (the lowest part of the frame), and the rear end is the wheel frame (including wheels). When loading the mechanical equipment on the low platform semi-trailer, it is usually loaded from the rear end of the semi-trailer, that is, the mechanical equipment is moved from the rear wheel frame or the wheels are removed, and then the mechanical equipment is fixed on the semi-trailer. The walking structure of the low flat plate semi-trailer is made of high-strength international steel, which has light weight and ensures its anti torsion, anti-seismic, anti bumping capacity and meets different road bearing capacity
the semi-trailer with fence structure design is adopted for the loading part of the semi-trailer. It is mainly used for the transportation of agricultural and sideline procts and other light goods. 1. The design process of vehicle type and fence structure is combined with the goods category of users, and the reasonable design can fully rece the weight of the carriage under the condition of load. The structure is simple and applicable, and the disassembly is convenient, so as to rece the investment cost and create more profit value for users. 2. Frame: a space frame structure composed of longitudinal beam and integral through beam. It can balance the strength, rigidity and toughness of the frame, with strong bearing capacity and no permanent deformation. 3. The series of bin grid type semi-trailer frames are of beam through structure, and the longitudinal beams are of straight type or gooseneck type. The web height is from 400 to 500, the longitudinal beam is welded by automatic submerged arc welding, the frame is shot blasted, and the cross beam is penetrated into the longitudinal beam and welded as a whole. 4. Suspension system: new suspension system, high strength, strong impact resistance; The load of each axle is balanced, the angle of the system pull rod is reasonably designed, in the process of frequent bumps, the friction slip distance between the tire and the ground is reced, and the tire wear is effectively reced. At the same time, the pull rod can be adjusted, and the wheelbase can be adjusted, so as to effectively avoid the phenomenon of partial running in and wheel gnawing of the tire
container semi-trailer
container semi-trailer with container structure. It is mainly used in the logistics system of ships, ports, routes, highways, transfer stations, bridges, tunnels and multimodal transport. 1. It is specially used for the transportation of various containers. It can be used repeatedly for a long time and has enough strength. 2. Container transshipment can directly load the goods in the consignor's warehouse and unload them in the consignor's warehouse. It is unnecessary to take the goods out of the container for transshipment when changing vehicles or ships. 3. It can be loaded and unloaded quickly, and can be easily transferred from one transport to another. 4. It is convenient to fill and unload the goods to meet the personalized needs of customers. According to the needs of customers tooling guarantee, stable quality, reliable performance. Container semi-trailer is a special transport trailer carrying containers. In the early development of container transportation, because of the small carrying capacity and quantity of containers, ordinary trucks were used to carry them. Since the 1960s, with the rapid development of container transportation, countries have developed special vehicles to transport containers. The size of the loading part of the container trailer is determined according to the size of the standard container, and a twist lock device for fixing the container is set at the position corresponding to the four corners of the bottom of the container. Special transport trailer for carrying containers. A twist lock device for fixing the container is arranged at the four corners of the loading position. Generally, semi hanging, full hanging and double hanging are adopted, and semi hanging is the most. There are two types of semi-trailer, plate type and frame type. The former has plate type cargo platform, which can also be used to transport Ordinary long and large goods; The latter has no cargo platform, and the container is mounted on the chassis frame, which is fixed by the twist lock device to become the strength component of the semi-trailer
tank semitrailer
the structure of the loading part of the tank semitrailer is tank structure semitrailer. It is mainly used to transport liquid, bulk materials and bulk cement. 1. Tank truck series is divided into tank truck, concrete mixer, powder material and bulk cement truck, water supply truck, etc. 2. The tank body is made by 3D design and advanced processing technology. The chassis adopts the special chassis of various manufacturers with advanced technology and reliable performance. A truck with a can. Advantages: high loading and unloading transportation efficiency. Guarantee the quality of goods. It is concive to transportation safety. Rece labor intensity and improve loading and unloading conditions. Save packaging materials and labor. Rece transportation costs. Liquid tank truck: transport fuel, lubricating oil, acid, alkali, water, food and beverage, etc. powder tank truck: transport cement, flour, stone powder, etc. Gas tank truck: Transport nitrogen, argon, petroleum gas, particle tank truck: transport grain, beans, granular plastic and other granular goods. Other special tank cars: concrete mixer, sprinkler, sweeper, etc. According to the service pressure in the container, the tank car is divided into low pressure tank car (the internal pressure borne by the tank body is generally below 0.09mpa). It is mainly used to load water, light fuel, etc.) medium pressure tank car (the internal pressure of the tank body is generally 0.147-0.294mpa. It is mainly used to load caustic soda, asphalt, etc.) high pressure tank car (the internal pressure of tank body is generally 1.177-3.532mpa)
Full Trailer
the load of the full trailer is borne by itself and only connected with the locomotive by hook. The locomotive does not need to bear the trailer load, but only provides power to help the trailer overcome the road friction resistance. In the long-distance transportation, it is very common to hang a car (or multiple cars) behind a truck, that is, a full trailer. The whole trailer is generally composed of frame, body, traction device, steering device, suspension, walking system, braking system, signal system, etc. The upper wing surface of the longitudinal beam of the straight beam frame is straight. It has the advantages of flat bottom plate, simple manufacturing process, high ground clearance and good longitudinal trafficability. In order to meet the structural and operational requirements of heavy flat trailer. The frame is mainly composed of main beam, cross beam, supporting beam and side beam. The load of the whole vehicle is transmitted to the ground through the supporting beam, suspension, wheel axle and wheel between the beams. The main beam, supporting beam and side beam of the frame are welded parts with box section, which have greater torsional rigidity. The beam connecting the main beam extends out to both sides, which is a variable cross-section I-shaped welded structure with high transverse bending strength. The height of the main beam of the frame is large and extends downward, which improves the longitudinal bending strength of the frame without increasing the height of the pallet. Under each supporting beam, a turntable mechanism with balanced suspension is installed to realize all wheel steering. Generally speaking, the strength of the frame should be increased, and the height of the frame should be reced as far as possible, so as to facilitate the loading, unloading and transportation of goods. According to the structure of longitudinal beam, the frame of full trailer includes straight through frame, stepped frame and concave beam frame
van type semi-trailer
van type semi-trailer series procts are used for the transportation of household appliances, light textile goods, coal, sand and other building materials and chart goods. The box body is made of high-strength cold rolled corrugated steel plate, with no skeleton structure. The center is all over the place, with various choices, large loading space, reasonable distribution in the box body, and X-shaped brace. It has the characteristics of multi pull, heavy load and light weight. The top of the box has closed type, push pull open type, open type, open tarpaulin pole type, etc. it is easy to operate and meets the diversified and personalized requirements of users. The van type semi-trailer adopts the closed side guard rail design, which can effectively rece the lateral risk and energy consumption when the vehicle is driving at high speed. The rear protection design has reasonable cart accessories, which is convenient for operation. It is refitted or manufactured separately on the chassis of a van. According to the different compartments, it can be divided into passenger van type and compartment type. The passenger compartment and cab are generally of integral structure, such as ambulance, accommodation car, environmental detection car, dining car, TV relay car, etc. The carriage and cab of carriage type are generally of split structure, such as van type less than carload transport vehicle, refrigerated and insulated vehicle, etc. The specific structure of the car varies according to its function. In addition to the function of general compartment, the compartment of refrigerator car has the function of heat insulation; The top cover of the convertible top carriage can be vertically lifted to change the volume of the carriage and meet the loading and unloading requirements of different goods; The wing type carriage is convenient for loading and unloading of goods and improves loading and unloading efficiency. Series vans are divided into box transport semi-trailer and second-hand site refitted vans. The car body is made of high-quality steel, advanced technology and strict proction process, with reasonable structure, reliable performance, simple operation and beautiful appearance. The accessories are manufactured by well-known manufacturers at home and abroad, and purchased, inspected and used in strict accordance with the requirements of quality system documents, ensuring the good performance of the whole vehicle
mp semitrailer
a car with an automatic tipping device in its compartment. It is also called Tipper and engineering vehicle, which is composed of chassis, hydraulic lifting mechanism, power take-off device and cargo box. In civil engineering, it is often combined with excavators, loaders and belt conveyors to form loading, transporting and unloading proction lines for loading, unloading and transportation of earthwork, sand and loose materials. Because the loading carriage can automatically mp materials at a certain angle, the unloading time and labor force can be greatly saved, the transportation cycle can be shortened, the proction efficiency can be improved, the transportation cost can be reced, and the loading volume can be marked.
detailed classification of semi-trailer:
self mping semi-trailer
self mping semi-trailer is suitable for the transportation of coal, ore, construction materials and other bulk goods. Dump semi-trailer can be divided into two categories according to its use: one is heavy and super heavy mp trailer for off highway transportation, which mainly undertakes the transportation tasks of large mines and projects, and is usually used with excavators. The other belongs to the light, medium and large ordinary self unloading trailers for road transportation, which mainly undertakes the transportation of loose goods such as sand, soil and coal, and is usually used with loaders. 1. It can effectively improve the transport efficiency of bulk and scattered goods transported by loaders when the car is tipped over and back. 2. The frame and the longitudinal beam of the carriage are welded with high-quality manganese plate, and there are stpan and rectangular container. It has high strength, strong lifting force, good rigidity and toughness, strong bearing capacity and no permanent deformation. 3. Excellent technology: the main parts are processed by advanced equipment, the longitudinal beam is made by automatic submerged arc welding, and the assembly machine is used for the accurate assembly of axle and leaf spring
low flat semi-trailer
the low flat semi-trailer is widely used for medium and long distance freight transportation because of its no rail on the vehicle. The frame of the series semi-trailer is a beam through structure, and the longitudinal beam adopts a straight movable gooseneck type. The web height is from 400mm to 550mm, the longitudinal beam is welded by automatic submerged arc welding, the frame is shot peened, and the cross beam is penetrated into the longitudinal beam and welded as a whole. It is composed of series dry plate spring and suspension support, with reasonable structure, strong rigidity and strength, and is used to support load and slow impact. The low flat semi-trailer is usually used to transport heavy vehicles (such as tractors, buses, special purpose vehicles, etc.), rail vehicles, mining machinery, forestry machinery, agricultural machinery (such as excavators, bulldozers, loaders, pavers, cranes, etc.) and other heavy goods. The lower the center of gravity, the better the stability and safety, The greater the ability to transport superelevation cargo and pass overhead obstacles. Low flat semi-trailer structure and loading low flat semi-trailer usually adopt concave beam (or well type) frame, namely the front section of the frame is gooseneck (the traction pin of the gooseneck front section is connected with the traction saddle of the tractor, the rear end of the gooseneck is connected with the semi-trailer frame), the middle section is the cargo platform (the lowest part of the frame), and the rear end is the wheel frame (including wheels). When loading the mechanical equipment on the low platform semi-trailer, it is usually loaded from the rear end of the semi-trailer, that is, the mechanical equipment is moved from the rear wheel frame or the wheels are removed, and then the mechanical equipment is fixed on the semi-trailer. The walking structure of the low flat plate semi-trailer is made of high-strength international steel, which has light weight and ensures its anti torsion, anti-seismic, anti bumping capacity and meets different road bearing capacity
the semi-trailer with fence structure design is adopted for the loading part of the semi-trailer. It is mainly used for the transportation of agricultural and sideline procts and other light goods. 1. The design process of vehicle type and fence structure is combined with the goods category of users, and the reasonable design can fully rece the weight of the carriage under the condition of load. The structure is simple and applicable, and the disassembly is convenient, so as to rece the investment cost and create more profit value for users. 2. Frame: a space frame structure composed of longitudinal beam and integral through beam. It can balance the strength, rigidity and toughness of the frame, with strong bearing capacity and no permanent deformation. 3. The series of bin grid type semi-trailer frames are of beam through structure, and the longitudinal beams are of straight type or gooseneck type. The web height is from 400 to 500, the longitudinal beam is welded by automatic submerged arc welding, the frame is shot blasted, and the cross beam is penetrated into the longitudinal beam and welded as a whole. 4. Suspension system: new suspension system, high strength, strong impact resistance; The load of each axle is balanced, the angle of the system pull rod is reasonably designed, in the process of frequent bumps, the friction slip distance between the tire and the ground is reced, and the tire wear is effectively reced. At the same time, the pull rod can be adjusted, and the wheelbase can be adjusted, so as to effectively avoid the phenomenon of partial running in and wheel gnawing of the tire
container semi-trailer
container semi-trailer with container structure. It is mainly used in the logistics system of ships, ports, routes, highways, transfer stations, bridges, tunnels and multimodal transport. 1. It is specially used for the transportation of various containers. It can be used repeatedly for a long time and has enough strength. 2. Container transshipment can directly load the goods in the consignor's warehouse and unload them in the consignor's warehouse. It is unnecessary to take the goods out of the container for transshipment when changing vehicles or ships. 3. It can be loaded and unloaded quickly, and can be easily transferred from one transport to another. 4. It is convenient to fill and unload the goods to meet the personalized needs of customers. According to the needs of customers tooling guarantee, stable quality, reliable performance. Container semi-trailer is a special transport trailer carrying containers. In the early development of container transportation, because of the small carrying capacity and quantity of containers, ordinary trucks were used to carry them. Since the 1960s, with the rapid development of container transportation, countries have developed special vehicles to transport containers. The size of the loading part of the container trailer is determined according to the size of the standard container, and a twist lock device for fixing the container is set at the position corresponding to the four corners of the bottom of the container. Special transport trailer for carrying containers. A twist lock device for fixing the container is arranged at the four corners of the loading position. Generally, semi hanging, full hanging and double hanging are adopted, and semi hanging is the most. There are two types of semi-trailer, plate type and frame type. The former has plate type cargo platform, which can also be used to transport Ordinary long and large goods; The latter has no cargo platform, and the container is mounted on the chassis frame, which is fixed by the twist lock device to become the strength component of the semi-trailer
tank semitrailer
the structure of the loading part of the tank semitrailer is tank structure semitrailer. It is mainly used to transport liquid, bulk materials and bulk cement. 1. Tank truck series is divided into tank truck, concrete mixer, powder material and bulk cement truck, water supply truck, etc. 2. The tank body is made by 3D design and advanced processing technology. The chassis adopts the special chassis of various manufacturers with advanced technology and reliable performance. A truck with a can. Advantages: high loading and unloading transportation efficiency. Guarantee the quality of goods. It is concive to transportation safety. Rece labor intensity and improve loading and unloading conditions. Save packaging materials and labor. Rece transportation costs. Liquid tank truck: transport fuel, lubricating oil, acid, alkali, water, food and beverage, etc. powder tank truck: transport cement, flour, stone powder, etc. Gas tank truck: Transport nitrogen, argon, petroleum gas, particle tank truck: transport grain, beans, granular plastic and other granular goods. Other special tank cars: concrete mixer, sprinkler, sweeper, etc. According to the service pressure in the container, the tank car is divided into low pressure tank car (the internal pressure borne by the tank body is generally below 0.09mpa). It is mainly used to load water, light fuel, etc.) medium pressure tank car (the internal pressure of the tank body is generally 0.147-0.294mpa. It is mainly used to load caustic soda, asphalt, etc.) high pressure tank car (the internal pressure of tank body is generally 1.177-3.532mpa)
Full Trailer
the load of the full trailer is borne by itself and only connected with the locomotive by hook. The locomotive does not need to bear the trailer load, but only provides power to help the trailer overcome the road friction resistance. In the long-distance transportation, it is very common to hang a car (or multiple cars) behind a truck, that is, a full trailer. The whole trailer is generally composed of frame, body, traction device, steering device, suspension, walking system, braking system, signal system, etc. The upper wing surface of the longitudinal beam of the straight beam frame is straight. It has the advantages of flat bottom plate, simple manufacturing process, high ground clearance and good longitudinal trafficability. In order to meet the structural and operational requirements of heavy flat trailer. The frame is mainly composed of main beam, cross beam, supporting beam and side beam. The load of the whole vehicle is transmitted to the ground through the supporting beam, suspension, wheel axle and wheel between the beams. The main beam, supporting beam and side beam of the frame are welded parts with box section, which have greater torsional rigidity. The beam connecting the main beam extends out to both sides, which is a variable cross-section I-shaped welded structure with high transverse bending strength. The height of the main beam of the frame is large and extends downward, which improves the longitudinal bending strength of the frame without increasing the height of the pallet. Under each supporting beam, a turntable mechanism with balanced suspension is installed to realize all wheel steering. Generally speaking, the strength of the frame should be increased, and the height of the frame should be reced as far as possible, so as to facilitate the loading, unloading and transportation of goods. According to the structure of longitudinal beam, the frame of full trailer includes straight through frame, stepped frame and concave beam frame
van type semi-trailer
van type semi-trailer series procts are used for the transportation of household appliances, light textile goods, coal, sand and other building materials and chart goods. The box body is made of high-strength cold rolled corrugated steel plate, with no skeleton structure. The center is all over the place, with various choices, large loading space, reasonable distribution in the box body, and X-shaped brace. It has the characteristics of multi pull, heavy load and light weight. The top of the box has closed type, push pull open type, open type, open tarpaulin pole type, etc. it is easy to operate and meets the diversified and personalized requirements of users. The van type semi-trailer adopts the closed side guard rail design, which can effectively rece the lateral risk and energy consumption when the vehicle is driving at high speed. The rear protection design has reasonable cart accessories, which is convenient for operation. It is refitted or manufactured separately on the chassis of a van. According to the different compartments, it can be divided into passenger van type and compartment type. The passenger compartment and cab are generally of integral structure, such as ambulance, accommodation car, environmental detection car, dining car, TV relay car, etc. The carriage and cab of carriage type are generally of split structure, such as van type less than carload transport vehicle, refrigerated and insulated vehicle, etc. The specific structure of the car varies according to its function. In addition to the function of general compartment, the compartment of refrigerator car has the function of heat insulation; The top cover of the convertible top carriage can be vertically lifted to change the volume of the carriage and meet the loading and unloading requirements of different goods; The wing type carriage is convenient for loading and unloading of goods and improves loading and unloading efficiency. Series vans are divided into box transport semi-trailer and second-hand site refitted vans. The car body is made of high-quality steel, advanced technology and strict proction process, with reasonable structure, reliable performance, simple operation and beautiful appearance. The accessories are manufactured by well-known manufacturers at home and abroad, and purchased, inspected and used in strict accordance with the requirements of quality system documents, ensuring the good performance of the whole vehicle
mp semitrailer
a car with an automatic tipping device in its compartment. It is also called Tipper and engineering vehicle, which is composed of chassis, hydraulic lifting mechanism, power take-off device and cargo box. In civil engineering, it is often combined with excavators, loaders and belt conveyors to form loading, transporting and unloading proction lines for loading, unloading and transportation of earthwork, sand and loose materials. Because the loading carriage can automatically mp materials at a certain angle, the unloading time and labor force can be greatly saved, the transportation cycle can be shortened, the proction efficiency can be improved, the transportation cost can be reced, and the loading volume can be marked.
5. If the semi-trailer can be modified to burn gas, it must first submit an application to the traffic control department and obtain permission before changing gas
for a registered motor vehicle to change its engine or fuel type, it is necessary to submit an application to the traffic control department first, and only after obtaining the approval of the traffic control department can it be modified. After refitting, you can go to the traffic control department to apply for motor vehicle change proceres
it is worth noting that the relevant insurance contract terms of some insurance companies stipulate that the insurance company will not compensate for the accident after automobile modification. While the vehicles with "oil to gas" need to be refitted when they are equipped with equipment, and steel cylinders and pressure regulating valves should be added near the original fuel pipes. Is it possible that they will not be able to get compensation when they are in danger
in this regard, people in the insurance instry said that although the "oil to gas" vehicles are among the refitted vehicles, insurance companies pay more attention to whether the direct cause of the accident is caused by the refitting of the vehicle. If the accident is not caused by the refitting, it can be compensated, and it is not "refitted vehicle accident, no compensation". However, if car owners already have a "oil to gas" plan, and their cars have commercial insurance policies, it is suggested that car owners should first go to the insurance company to inform them of the modification plan within the insurance period, so that the insurance company can reassess the risk. Once the insurance is allowed to be renewed or the premium is increased, the vehicle accident claims will be settled according to the general proceres, Modification is no longer an obstacle to compensation
in addition, when the vehicle is refitted, the on-board gas equipment shall be insured with liability insurance. Because the "oil to gas" installation of compressed natural gas equipment for vehicles is a transformation of the specific performance of the vehicle fuel power system, so the owners of vehicles must pay attention to whether the manufacturers of on-board gas equipment have chosen the corresponding proct liability insurance to insure.
for a registered motor vehicle to change its engine or fuel type, it is necessary to submit an application to the traffic control department first, and only after obtaining the approval of the traffic control department can it be modified. After refitting, you can go to the traffic control department to apply for motor vehicle change proceres
it is worth noting that the relevant insurance contract terms of some insurance companies stipulate that the insurance company will not compensate for the accident after automobile modification. While the vehicles with "oil to gas" need to be refitted when they are equipped with equipment, and steel cylinders and pressure regulating valves should be added near the original fuel pipes. Is it possible that they will not be able to get compensation when they are in danger
in this regard, people in the insurance instry said that although the "oil to gas" vehicles are among the refitted vehicles, insurance companies pay more attention to whether the direct cause of the accident is caused by the refitting of the vehicle. If the accident is not caused by the refitting, it can be compensated, and it is not "refitted vehicle accident, no compensation". However, if car owners already have a "oil to gas" plan, and their cars have commercial insurance policies, it is suggested that car owners should first go to the insurance company to inform them of the modification plan within the insurance period, so that the insurance company can reassess the risk. Once the insurance is allowed to be renewed or the premium is increased, the vehicle accident claims will be settled according to the general proceres, Modification is no longer an obstacle to compensation
in addition, when the vehicle is refitted, the on-board gas equipment shall be insured with liability insurance. Because the "oil to gas" installation of compressed natural gas equipment for vehicles is a transformation of the specific performance of the vehicle fuel power system, so the owners of vehicles must pay attention to whether the manufacturers of on-board gas equipment have chosen the corresponding proct liability insurance to insure.
6. You can't change the car, but you can change the container. The law doesn't stipulate what goods you have to pull
7.
According to GB 1589-2004, the maximum width limit is 2550 mm for van type freight cars with integral closed cargo compartment (and the cargo compartment is separated from the cab), integral closed van type semi-trailer and integral closed car type train, as well as passenger cars with a length of more than 11000 mm
2. The maximum height limit of double deck passenger car running on fixed line is 4200 mm
3. The width limit of low platform special semi-trailer is 3000mm; The vehicle length limit is not applicable to the special semi-trailer for transporting non detachable objects, the special semi-trailer for transporting vehicles (but the length of the train composed with the tractor shall comply with the provisions of this standard) and the frame container semi-trailer for transporting containers with a single container length of more than 12.2m (40 feet)
4. For the whole closed van semi-trailer, container semi-trailer and tank semi-trailer, the maximum length limit is 13000 mm
5. Since January 1, 2008, the maximum length limit of the whole closed van semi-trailer used on high-grade highway is 14600mm
6, except for the low flat train transporting non detachable objects and the frame type container train transporting containers with the length of single container more than 12.2m (40 feet); Since January 1, 2008, the maximum length limit of articulated train with integral closed van semi-trailer is 18100mm when it is used on high-grade highway
extended data:
category of semi-trailer:
container semi-trailer with container structure
tank semitrailer
van semitrailer series procts are used for the transportation of household appliances, textile goods, coal, sand and other building materials and chart goods
mp semitrailer
a car equipped with an automatic mping device. It is also called Tipper and engineering vehicle, which is composed of chassis, hydraulic lifting mechanism, power take-off device and cargo box
oil semitrailer
oil semitrailer is mainly used for large-scale oil transportation, and the tonnage is generally about 40 ~ 60 cubic meters. There are usually two axle semi-trailer and three axle semi-trailer
light semi trailer
as the name suggests, an ultra light semi-trailer is a car that is much lighter than an ordinary car. How much lighter can it be considered as ultra light? The instry definition is that a car with the same load, size and weight as an ordinary car is defined as ultra light
vehicle transport semi trailer. It mainly carries cars, but also vans, business cars, jeeps and other passenger cars
semi trailer for transportation of powder materials is a special vehicle for transportation of large quantities of st materials (bulk cement), which is generally applicable to the area where the weight charge is strictly implemented in accordance with the national regulations, and the volume is generally between 35-45 cubic meters
semi trailer for chemical liquid transportation
the requirements for tank material of semi trailer for chemical liquid transportation are different according to the characteristics of the medium transported
heavy low flat semi-trailer
heavy low flat semi-trailer is used to load super large and overweight goods. The basic form of heavy trailer is single flat trailer
semi trailer with breast board structure. It is widely used in medium and long distance transportation of heavy goods and bulk goods. It has become the first choice of medium and long distance freight vehicles
gooseneck semi-trailer is also widely used in the transportation of various kinds of mechanical equipment, large objects, highway construction equipment, large tanks, power plant equipment and all kinds of steel
frame container semi-trailer
frame container transport vehicle is a kind of frame of container transport semi-trailer, and another is flat type
The lower the center of gravity, the better the stability and safety, The greater the ability to transport superelevation cargo and pass overhead obstacles. Structure and loading of low flat semi-trailerbulk cement tank transport semi-trailer
bulk cement tank truck, bulk cement truck alias cement tank truck, powder material truck. A vehicle with closed cargo compartment and automatic unloading device for transporting bulk cement. It is mainly used in cement plants, cement warehouses and large construction sites, which can save a lot of packaging materials and loading and unloading labor
8. A semi-trailer is a trailer whose axle is placed behind the center of gravity of the vehicle (when the vehicle is uniformly loaded) and is equipped with a coupling device which can transmit horizontal or vertical forces to the tractor.
9.
1. The size is the same, all in line with the notice of the national development and Reform Commission
However, different brands sometimes have their own special announcements, which need to be inquired The common ones are 10m, 11m, 11.5m, 13m, 16m, 17.5m, 17.8m and so on 
extended data:
main differences:
1. Different from full trailer, semi-trailer is a trailer with the axle placed behind the center of gravity of the vehicle (when the vehicle is uniformly loaded) and equipped with a coupling device that can transfer horizontal or vertical force to the tractor! Generally, there are two axles for full trailers and one axle for semi trailers. Semi trailer refers to the vehicle which has no power itself, carries the load together with the main vehicle and runs by the traction of the main vehicle
In short, the trailer is connected with the truck in front by hook. The semi-trailer is connected with the traction seat of the tractor through the traction pin. The common container transport vehicle is a typical semi-trailer train, and the rear loading part is the semi-trailer The full trailer is mainly used for short-distance transportation in factories, ports, docks, warehouses and other fields, while the semi-trailer is mainly used for long-distance transportation of goodsmain models:
semi trailer with rail structure as loading part. It is widely used in medium and long distance transportation of heavy goods and bulk goods. It has become the first choice of medium and long distance freight vehicles
The car body is made of high-quality steel, advanced technology and strict manufacturing, with reasonable structure, reliable performance, simple operation and beautiful appearance2. The frame of series semi-trailer is beam through structure, and the longitudinal beam is straight or gooseneck. The height of the web is from 400mm to 550mm, the manganese plate is welded, the longitudinal beam is welded by automatic submerged welding, the frame is shot peened, and the cross beam is penetrated into the longitudinal beam and welded as a whole
The suspension is made of series leaf spring and suspension support; Reasonable structure, strong rigidity and strength, used to support load and rece impact10. Hebei Pengda Trailer Co., Ltd. is a national CCC certification enterprise, the company proces and sells all kinds of fence semi-trailer, warehouse semi-trailer, semi-trailer, container semi-trailer, all kinds of special semi-trailer, cement tank! Rollover Matching accounts. Don't worry, it's safe! Make a good car with good materials! Safe and reliable after-sales service, let you buy at ease, carefree. 1.8.8.3.2.1.3.0.7.6.7.
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