Heavy-duty car direction converter bearing and its manufacturing technique

Abstract

The invention relates to an automobile part, in particular to a steering bearing of a heavy truck and the preparation process. An opening at one side of a bearing shell is provided with a right angle shaped internal raceway where cylindrical rollers are circularly arranged. After the rollers are closely arranged, a clamping cushion block is arranged at the clearance between a head roller and a tail roller; a pin hole is arranged on the end surface at the other side of the bearing shell; the internal ring of the bearing shell is provided with an internal sealing trough; the external ring and the internal raceway of the bearing shell are provided with eccentric structure with the eccentric direction identical to the symmetrical axis line of the pin hole on the end surface; wherein, the processing of the bearing shell comprises the processes of turning the internal hole and the end surface of the pin hole end, turning the external round and the end surface of the raceway end, coarsely turning the internal raceway, quenching and tempering and softly grinding the external round, finely turning the internal raceway, high frequency quenching, turning the internal sealing trough, grinding two external end surfaces, grinding the external round, grinding the internal hole of the pin hole end, grinding the internal raceway, reaming two pin holes, turning the eccentric external round, turning a positioning trough, chamfering a regular triangle angle, and finally grinding the external round.

Description

technical field [0001] The invention relates to an automobile part, in particular to a heavy-duty automobile steering gear bearing and a preparation process thereof. Background technique [0002] The power steering system of heavy-duty vehicles includes steering wheel, steering shaft, steering intermediate shaft, steering oil pipe, steering oil pump, steering oil tank, steering knuckle arm, steering tie rod, steering rocker arm, integral steering gear, steering straight rod, steering Shock absorber; when the driver turns the steering wheel, the input shaft of the steering gear is driven to rotate, and the output shaft of the steering gear drives the steering rocker to swing, and the steering wheel is deflected through the steering straight rod, tie rod, and steering knuckle arm, thereby changing The direction of travel of the car. At the same time, the input shaft of the steering gear also drives the steering control valve inside the steering gear to rotate, so that the ste...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a new eccentric bearing installed in the worm gear steering gear of heavy-duty vehicles, which can overcome the deficiency that the eccentric bearings currently used cannot adjust the meshing clearance of the worm gear after assembly , and can further improve the installation performance of the eccentric bearing and the performance of the steering gear

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