Mine general transfer machine

1. The transport equipment of coal mining face is scraper conveyor, and the main transport equipment in the transport chute is belt conveyor, which is carried by the transfer machine
the transfer machine can be retracted, and can crush large coal and gangue by jaw crusher.

2. First, keep the existing motor unchanged, install a recer at the output end of the motor, select the speed ratio of about 2:1, the speed can be reced to about 700, but the torque (force) can be doubled
secondly, the existing four pole motor is replaced or transformed into eight pole motor, and the speed is reced to about 700. If the motor power remains unchanged, the torque can be doubled
thirdly, the constant torque converter is used to keep the motor unchanged, but the price is relatively expensive
the specific cost is closely related to the motor power you use
if the pulley needs to be replaced, it is calculated according to the circumference, or the diameter, of course.

3. The length parameters of coal mine loader are determined according to the height of coal seam, the length of working face and the output, generally 60 meters.

4. Hello, my friend, you may be a new employee who works in coal mines. If you are, you'd better ask the leader or master of your company. If you want to ask people outside the instry, the answer may be unprofessional or incorrect. This is my personal opinion, for reference only.

5. Main technical parameters of szz630 / 90 transfer machine
1. Model: szz630 / 90
2. Length; 28m
3. Transportation capacity: 600t / h
4. Scraper chain speed: 1.34m/s
5. Effective lap length with belt conveyor: 12m
6. Scraper chain specification: 2 Φ twenty-six × 92mm breaking force: ≥ 850kn
7, scraper spacing: 736mm (8 rings)
8, chain center distance: 120mm
9, motor model: dsb-90
10, power: 90kw
11, speed: 1475r / min
12, voltage level: 1140 / 660V
13, recer model: js90-zjt water-cooled, parallel arrangement of three-stage conical and cylindrical gear recer
13< 14. Transmission ratio: 26.597
16. Chain tightening mode: brake disc chain tightener and chain stopper
1
2. Technical requirements
1. The box body adopts assembly welding structure, medium plate material is NM360 steel plate, with a thickness of 25 mm, adding resistance
grinding block, and bottom plate is NM360, with a thickness of 20 mm
2. The tail of the machine is self moving, and two oil cylinders are installed at the head to lift the head
3. The motor and recer are directly connected
4. The structural form, specifications, dimensions and material requirements of the transfer machine are implemented according to 33szz. The head drive can be installed on either side of the transfer machine
5. The total length of the transfer machine is 40 meters, and the effective lap length with the belt conveyor is 12 meters
6. The scraper and chain of the transfer machine can be interchanged with the scraper conveyor of the working face and connected with mbbell pin
7. Adopt integral sprocket structure. The sprocket shaft group is lubricated with thin oil
8. Inclined baffle is used for the tail section 6, the thickness of coal baffle is not less than 6 mm, and the upper edge of baffle is strengthened
9. Imported SKF Bearing is adopted
10. Cover the bridge from the bridge section to the tail straight baffle
11. Special cable laying trough is required at the landing section of transfer machine
12. The length of single chain is 20-30m< The scraper adopts forging structure
14. Spare parts: 1 motor, 1 recer, 1 coupling, 1 sprocket at the head and 1 sprocket at the tail
15. Deliver with 3% of the total price of the complete machine and equipment< According to the technical agreement and scraper conveyor factory test specification (mt105-1993) and
mining high strength ring chain (GB / t12718-91) and other standards
17. When leaving the factory, the whole machine and purchased equipment shall be provided with proct certificate and coal safety mark certificate
18. Three sets of drawings and technical data shall be provided randomly. Technical data includes operation and maintenance instructions and assembly drawings of equipment and components (including purchased parts). The assembly dimensions and parts names of main components shall be included in the drawings
19. Four sets of special tools shall be provided with the delivery
20. After the equipment arrives at the mine, the factory is responsible for free training, and guiding the on-site installation and commissioning to smooth operation
21. Belt conveyor manufacturers and transfer machine manufacturers must do a good job in the reasonable matching work of belt conveyor tail and transfer machine head.

7. Design of hydraulic column pulling and pushing

9. Find out the position of broken chain --- pinch the upper chain --- turn over the scraper conveyor --- connect the bottom chain --- lay the scraper conveyor --- connect the top chain------------------ to be finished