How to deal with large amount of ore in steering gear
It refers to the free clearance of the steering wheel and the angle that the steering wheel can turn without deflection of the steering wheel
1. Regulatory requirements for vehicle steering clearance:
according to Article 6.4 of the national standard GB 7258-2017 technical conditions for motor vehicle operation safety, the requirements for vehicle steering clearance are as follows:
A) motor vehicles with maximum design speed greater than or equal to 100kN / h: 15 °
b) three wheeled vehicle: 35 °
C) other motor vehicles: 25 °
2. The reason of automobile steering clearance:
between the steering wheel and the steering wheel, there are steering transmission shaft, steering gear, steering transmission mechanism and other parts, the connection between them can not be without clearance, and there can not be deformation in the steering process, so the comprehensive reaction of each clearance and deformation on the steering wheel proces free stroke
automobile steering principle
automobile steering is to use the steering wheel to drive the steering gear, so as to make the rack and pinion steering gear work, make the front tie rod swing left and right, and make the front wheel proce an angle, so as to proce the steering effect
automobile steering system is a system used to maintain or change the driving or reversing direction of the automobile, which is located in the front of the automobile and mainly divided into mechanical steering system and power steering system
1. Mechanical steering system:
the mechanical steering system mainly uses the driver's physical strength as the steering energy, and is composed of steering control system, steering gear and steering transmission system
2. Power steering system:
the power steering system takes the physical strength of the driver and the power of the engine as the steering energy. In general, most of the energy required for steering is provided by the engine. Power steering system is more portable than mechanical steering system, but it is more prone to failure than mechanical steering system because of its complex structure
the main reasons for the excessive clearance when turning the steering wheel are:
1. The bearing of the steering gear is too loose or the clearance of the gear drive pair of the steering gear is too large
2. The ball pin of the main and tie rod is worn and loose
3. The kingpin and lining pin of steering knuckle are seriously worn, and the fit clearance is too large
4. The front hub bearing is loose
5. The front wheel is bent and the rivet is loose
6. The frame and rim are deformed
7
e to the large fit clearance of the relevant parts of the steering transmission mechanism, such as the steering column, steering gear, steering rod and ball head, the possibility of loose clearance of the above parts is very small in the case of a new car according to the mileage of the vehicle. Therefore, the free travel of the steering system should be tested at the 4S shop, Check whether there is a loose gap in the transmission parts. For checking the free travel of the vehicle with power steering system, it is necessary to check it when the engine is off, otherwise it is inaccurate.
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