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Automobile steering gear gap adjustment mechanism

A gap adjustment mechanism and automobile steering gear technology, which is applied to mechanical steering gears, mechanical equipment, hoisting devices, etc., can solve problems such as mechanism damage, difficulty in buffering impacts, and impact on gap adjustment performance, and achieve manufacturing error elimination and simple structure , the effect of avoiding noise

Active Publication Date: 2020-02-21
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned gap adjustment mechanism can adjust the gap between the gear and the rack, but when the turning vehicle hits an obstacle, it is difficult for the mechanism to buffer the impact transmitted from the wheels, which easily causes damage to the mechanism
In addition, the above-mentioned gap adjustment mechanism will also generate knocking noise due to high meshing force during use, and the spring force of the spring will also change during use, which will affect the gap adjustment performance

Method used

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  • Automobile steering gear gap adjustment mechanism
  • Automobile steering gear gap adjustment mechanism
  • Automobile steering gear gap adjustment mechanism

Examples

Experimental program
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Effect test

Embodiment 1

[0040] The invention relates to a steering clearance adjustment mechanism, which can be used to adjust the gap between the rack and the gear in the rack and pinion steering gear. Of course, it can also be used for steering in other structural forms except for the rack and pinion steering gear. device adjustment. The steering gear gap adjustment mechanism includes a steering gear housing, a pressure seat that is slidably embedded in the steering gear housing, and an adjustment part that is connected to and arranged in the steering gear housing. Driven, the adjusting part can cause the pressure seat to slide along the axial direction of the steering gear housing because of its position change in the steering gear housing. Also formed on the press seat are two oppositely arranged elastic support arms with support surfaces, and the press seat is further provided with a blocking limit that can limit the expansion of the two elastic support arms due to its own blocking. bit departm...

Embodiment 2

[0049] This embodiment relates to an automobile steering gear clearance adjustment mechanism, which has substantially the same structure as the automobile steering gear clearance adjustment mechanism in Embodiment 1, the difference is that, as Figure 6 As shown in , the pressure seat provided in the steering gear housing 3 in this embodiment is the second pressure seat 18 which is different in structure from the first pressure seat 5 in Embodiment 1, and is adapted to the second pressure seat 18 Structural changes, the rack meshed with gear 1 in this embodiment is also as Figure 6 The second rack 17 in.

[0050] The structure of the second rack 17 in this embodiment is as follows: Figure 7 As shown in , two symmetrically arranged mating surfaces 25 are formed on the second rack 17 , and the mating surfaces 25 are used to abut against the second pressure seat 18 . The specific structure of the second press seat 18 is as Figure 8 and Figure 9 As shown in , two second el...

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Abstract

The invention provides a clearance adjustment mechanism for an automobile steering device. The clearance adjustment mechanism comprises a steering device shell and further comprises a pressing seat embedded in the steering device shell in a sliding manner, and an adjusting part which is connected to the interior of the steering device shell and abuts against the pressing seat. Under the external force drive, the position of the adjusting part is changed in the steering device shell so that the pressing seat can slide in the axial direction of the steering device shell. Two elastic supporting arms which are oppositely arranged and have supporting faces are formed on the pressing seat. A blocking limiting part which can limit external expansion of the two elastic supporting arms through self blocking is further arranged on the pressing seat. By means of the clearance adjustment mechanism for the automobile steering device, the engagement effect between a rack and a gear can be ensured, the engagement clearance between the rack and the gear can be adjusted, damage of the pressing seat due to colliding and impacting can also be avoided, in addition, an existing spring structure is omitted, adverse influences caused by changing of spring force can be avoided, and a good use effect is achieved.

Description

technical field [0001] The invention relates to the technical field of automobile steering gear, in particular to an automobile steering gear gap adjustment mechanism. Background technique [0002] Rack and pinion steering gear is the most widely used steering gear for passenger cars at present. It has the advantages of simple structure, compactness, high rigidity, low cost, sensitive steering, and easy layout. It is especially suitable for use with candle suspensions and microphones. In addition, the rack-and-pinion steering gear can directly drive the tie rod, which can simplify the steering transmission mechanism. The rack and pinion clearance adjustment mechanism is an important part of the rack and pinion steering gear, which generally consists of a rack press seat, a spring and an adjusting screw. The rack is pressed against the gear by a certain spring elastic force, so that there is no backlash when the gear and the rack are driven, so that it can automatically comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H55/28B62D3/12
CPCB62D3/12F16H55/283F16H2055/281
Inventor 王亮闫世伟赵辉亢彦海陈建马江丰程振兴孙兴宇李朝军谢立民杨玉伟
Owner GREAT WALL MOTOR CO LTD
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