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a steering gear

A steering gear and rack technology, applied in steering gears, mechanical steering gears, steering mechanisms, etc., can solve the problems of high noise, accelerated wear of rack bushings, affecting the comfort level of vehicles, and achieve good structural performance and modification. Small, strong usability effects

Active Publication Date: 2017-12-05
CHERY COMML VEHICLE ANHUI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rack and pinion are arranged obliquely. In addition to the axial tension and pressure, the force on the rack of the steering gear also has a component force perpendicular to the axis of the rack. This component will lead to the acceleration of the rack bushing. wear and tear
Existing vehicles will be noisy during steering operations, especially when driving on roads with poor road conditions. Noise from the collision and impact of the wear gap affects the comfort of the vehicle

Method used

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Embodiment Construction

[0019] The specific implementation manner of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings.

[0020] Steering gear of the present invention, as figure 1 As shown, it includes the steering gear housing and the rack 1 arranged in the housing, the housing includes the outer shell 2 and the inner lining 3, the rack bushing 4 is arranged between the rack 1 and the inner lining 3, and the rack 1 Driven by the gear, it can move in the rack bushing 4 along a straight line. Between the rack 1 and the inner liner 3 there is also an elastic bush 6 which can play a buffering role. The elastic bush 6 is a double-layer annular bush composed of an inner elastic sheet 61 and an outer elastic sheet 62 . The elastic bushing with double-layer structure has good structural performance, which can support and relieve the force well, so as to enhance the durability and practicality of the steering gear.

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PUM

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Abstract

The invention discloses a steering device. The steering device comprises a steering device shell and a gear rack (1) arranged in the shell. The shell comprises an outer shell (2) and a liner (3). A gear rack bush (4) is arranged between the gear rack (1) and the liner (3). An elastic bush (6) with a buffer effect is further arranged between the gear rack (1) and the liner (3) and is a double-layer annular bush composed of an inner-layer elastic piece (61) and an outer-layer elastic piece (62). The steering device is low in modification degree, low in cost, suitable for improvement on existing products and high in usability; abrasion to the gear rack bush can be reduced, so that durability is good.

Description

technical field [0001] The invention belongs to the technical field of automobile steering systems, and more specifically relates to a steering gear. Background technique [0002] The prior art steering gear has multiple forms, and the commonly used rack and pinion steering gear has a basic structure of a pair of mutually meshing gears and a rack. When the steering shaft drives the pinion to rotate, the rack just moves linearly. The rack bush in the steering gear is the support of the steering gear rack, and the rack moves back and forth in the rack bush when it moves. The rack and pinion are arranged obliquely. In addition to the axial tension and pressure, the force on the rack of the steering gear also has a component force perpendicular to the axis of the rack. This component will lead to the acceleration of the rack bushing. wear and tear. Existing vehicles will be noisy during steering operations, especially when driving on roads with poor road conditions, the vehicl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D3/12
CPCB62D3/126
Inventor 卢礼华荣升格陈文仙施帆君张超英
Owner CHERY COMML VEHICLE ANHUI
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