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Steering gear rack

A steering gear and rack technology, applied in the field of auto parts, can solve problems such as unfavorable production and use, high cost, and low strength

Active Publication Date: 2018-11-09
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the above-mentioned problems that the steering gear rack made of hollow pipes is high in cost and low in strength, which is not conducive to production and putting into use. steering gear rack

Method used

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Embodiment Construction

[0020] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the following embodiments are combined with the accompanying drawings to illustrate the present invention in detail.

[0021] figure 1 It is a structural schematic diagram of the steering gear rack in the embodiment of the present invention.

[0022] like figure 1 As shown, the steering gear rack 100 in this embodiment is arranged on the steering gears of the first steering rod and the second steering rod (not shown). The steering gear rack includes a rack body 10 and a connecting pipe 20 .

[0023] like figure 1 As shown, the rack main body 10 is cylindrical and made of carbon steel or alloy steel, preferably 45# steel or 42CrMo. At least one tooth 13 is sequentially arranged on the side of the rack main body 10 along its length direction. One end (left end) of the rack main body 10 is provided with a blind hole 11 , and the other end (r...

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PUM

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Abstract

The invention provides a steering gear rack. The steering gear rack is installed on a steering gear provided with a first steering pull rod and a second steering pull rod and is characterized in thatthe steering gear rack comprises a rack body and a connecting pipe, the rack body is in a cylinder shape, the side of the rack body is sequentially provided with at least one tooth in the length direction of the rack body, and one end of the rack body is used for being connected with the first steering pull rod; the connecting pipe is in a cylindrical shape, one end of the connecting pipe is connected with the other end of the rack body in a welding mode, and the other end of the connecting pipe is used for being connected with the second steering pull rod; and the end, facing the connecting pipe, of the rack body is provided with a blind hole matched with the cross section shape of the connecting pipe. The welding mode is friction welding. The steering gear rack meets a certain strength requirement and has the beneficial effects of being small in mass, low in cost, easy to produce and environment-friendly.

Description

technical field [0001] The invention belongs to the field of auto parts, in particular to a steering gear rack. Background technique [0002] The rack and pinion steering gear is mainly driven by the meshing of the gear and the rack. The steering shaft drives the pinion to rotate, the pinion drives the rack to move in a straight line, and the rack drives the steering rod. The steering gear has the advantages of simple structure, low cost, sensitive steering and small volume. In the "Catalogue of Industries, Products and Technologies Encouraged by the State for Development", the development and manufacture of key auto parts has been listed as a key support project. Therefore, the research and development of the automobile steering gear with advanced level is particularly important. [0003] The steering gear rack is a very important part of the rack and pinion steering gear. The existing steering gear rack is mainly made of profile blocks and has a relatively high quality...

Claims

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Application Information

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IPC IPC(8): B62D3/12
CPCB62D3/126
Inventor 赵礼辉戴浩杰冯金芝郑松林
Owner UNIV OF SHANGHAI FOR SCI & TECH