lift shaft after steering

Abstract

The invention provides a lifting shaft after steering, which includes a support shaft assembly, a kingpin, a limit screw, a wheel edge assembly, a steering knuckle arm, an oil cylinder support, a steering tie rod arm, and a tie rod assembly. The support shaft assembly is welded by the support shaft and bracket assembly; the wheel edge assembly is assembled on the support shaft assembly through the king pin, and the king pin and the support shaft are locked and limited by the limit screw; the steering knuckle arm is fixed by the bolt It is fixed on the wheel side assembly, the steering oil cylinder support is fixed on the support shaft assembly through bolts, and the tie rod assembly is connected to the wheel side assembly through the tie rod arm. Through the above settings, the rear lifting shaft assembly is connected with the car lifting airbag through the bracket assembly, and finally realized: the lifting shaft after the steering can be lifted when it is unloaded; when it is fully loaded, the lifting shaft after the steering can be lowered to play a bearing role; In road conditions with a small turning radius, the steering is controlled by the steering control mechanism, which improves the flexibility of the vehicle.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a lifting shaft after steering. Background technique [0002] With the needs of social development, road trucks have higher and higher requirements on vehicle cost and fuel economy. At the same time, domestic multi-axle trucks have problems such as turning difficulties due to their long body and large turning radius. In order to meet the needs of urban logistics transportation and achieve higher fuel economy when the vehicle is empty, the lifting shaft structure is generally adopted abroad. [0003] Patent Publication No. CN200420096864 discloses a follow-up steering axle assembly, including two shock absorbers, a return spring, and a return spring seat. This structure relies on the compression and elongation of the return spring itself to achieve follow-up Steering. However, follow-up steering cannot realize active steering, and has no effect on the outer radius of the vehicle. At th...

AI Technical Summary

Problems solved by technology

However, follow-up steering cannot realize active steering, and has no effect on the outer radius of the vehicle. At the same time, due to follow-up steering, it will accelerate tire wear

[0004] In addition, most of the lifting shaft structures currently used are follow-up steering structures, which will cause a lot of inconvenience to traffic due to the long body and large turning radius of multi-axle trucks, and at the same time cause excessive wear and tear on the tires.

Most of the supporting shafts are mainly welded with round or square tubes, which have disadvantages such as low bending and torsional strength, weak bearing capacity of the whole bridge, and poor reliability.

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