Automobile front axle steering knuckle and front axle connecting mechanism

Abstract

The invention discloses an automobile front axle steering knuckle and front axle connecting mechanism. The mechanism comprises a steering knuckle and a front axle which are connected through a masterpin, and is characterized in that an upper cylindrical bore and lower cylindrical bore of the steering knuckle are respectively in interference fit with a tapered roller bearing and a roller pin bearing, the tapered roller bearing and the roller pin bearing are in transition fit, the upper cylindrical bore is internally provided with a first limiting device cooperating with the tapered roller bearing and axially limiting the master pin, a master pin bore of the front axle is internally provided with a second limiting device matched with the surface of the master pin, and the second limiting device limits the master pin axially and radially through the axial acting force of the first limiting device on the master pin. The automobile front axle steering knuckle and front axle connecting mechanism has the advantages that the tapered roller bearing not only can bear the axial force, but also can bear the radial force, the bearing capacity is large, and the looseness is not easy; the masterpin and the lower end of the steering knuckle are connected through the roller pin bearing, and the steering is light and convenient.

Description

Technical field [0001] The invention relates to automobile parts, in particular to a connection mechanism between the front axle steering knuckle and the front axle of an automobile. Background technique [0002] The front axle of the automobile is connected to the frame through the suspension to bear the vertical load between the ground and the frame, and also bear the braking force and lateral force and the moment formed by these forces, and to ensure the correct movement of the steering wheel . In order to make the car have a better straight-line driving ability in driving, it is required: the friction between the steering knuckle and king pin of the front axle, and the friction between the steering knuckle and the front axle to be as small as possible to ensure the portability of the steering operation, and Sufficient wear resistance; the shimmy of the front axle wheels should be as small as possible to ensure the normal and stable driving of the car. [0003] The front axle ...

AI Technical Summary

Problems solved by technology

This structure not only has a small bearing capacity, but also is not closely matched, and is prone to abnormal wear of the kingpin, and the structure is relatively complicated, so that the steering knuckle is prone to move up and down on the front axle during the running of the car, causing the front axle of the car to vibrate, affecting car driving safety

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