Steering pair assembly and automobile with same

Abstract

The invention relates to a steering pair assembly. The steering pair assembly comprises a steering knuckle, a front axle, a master pin, an upper lining, an upper cover plate, a cylindrical roller thrust bearing, a rolling needle lining, a clamp spring, a lower cover plate and a wedge-shaped lock pin, wherein the steering knuckle and the front axle are connected in a rotating manner through the master pin; the upper lining, the cylindrical roller thrust bearing and the rolling needle lining are arranged on the master pin in a sleeving manner; and the master pin and the front axle are fixed through the wedge-shaped lock pin. The technique of the steering pair assembly disclosed by the invention relates to the structure of the steering pair assembly of a steering front axle. The structure of an inner lining of a steering pair is improved, so that the frictional force of the steering pair during rotation is reduced, the aligning torque during the running of an automobile is increased and the straightness of the automobile during running is improved; a caster angle of the master pin is mainly dependent on the installation attitude of a plate spring and a wedge-shaped cushion block, and is hardly influenced by the steering pair, so that by reducing the inner offset distance of the master pin and the inner inclination of the master pin, the influence of a road surface on a steering system can be reduced, the driving stability of the automobile can be increased, and besides, the controllability of rotating the steering wheel during steering can be improved..

Description

technical field [0001] The invention belongs to the technical field of automobile front steering, in particular to a steering sub-assembly and an automobile thereof. Background technique [0002] The steering front axle of a commercial vehicle is a non-disconnected steering driven axle, and the structure of the steering front axle is very complicated, such as figure 1 As shown, it is the prior art steering front axle and related parts, including hub 01, steering knuckle 02, upper bushing 03, adjusting gasket 04, wedge lock pin 05, kingpin 06, steering trapezoidal arm 07, steering knuckle arm 08. Front axle 09, leaf spring 010, steering tie rod 011, ball pin 012, lower bushing 013, thrust bearing 014, inner bearing 015 and outer bearing 016. The wedge-shaped lock pin with bolts fixes the kingpin in the kingpin hole of the fist of the front axle so that it cannot rotate. The steering knuckle uses the kingpin to hinge with the front axle to form a steering pair, and supports t...

AI Technical Summary

Problems solved by technology

[0011] Both the upper bush and the lower bush are copper bushes. When the steering knuckle and the kingpin move relative to each other, the sliding friction force is relatively large, which reduces the torque of the car; the inner offset of the kingpin is large, the rotational torque is large, and the rotation is poor; If the inner offset of the kingpin is large, the impact on the steering wheel will be large, and the stability will be poor when driving in a straight line; the copper bush will wear out quickly

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