Rack and pinion steering gear sealing structure

A technology of sealing structure and rack and pinion, which is applied in the direction of mechanical steering gear, engine sealing, engine components, etc., can solve problems such as seal prolapse, increase interference and resistance, reduce human resource investment, and reduce product quality. The effect of quality risk

Inactive Publication Date: 2015-12-30
WUHU HENGLONG AUTO STEERING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a rack-and-pinion steering gear sealing stru

Method used

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  • Rack and pinion steering gear sealing structure
  • Rack and pinion steering gear sealing structure
  • Rack and pinion steering gear sealing structure

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Embodiment Construction

[0016] figure 1 It is a structural schematic diagram of a gear shaft adjusting screw plug in the prior art. The structural design of the high and low pressure oil seals or dust seals used in the prior art is relatively simple, especially after the high and low pressure oil seals and dust seals receive the hydraulic impact force and the axial and radial forces are durable, the high and low pressure oil seals and the anti The dust seal has the phenomenon and risk of coming out, which will lead to oil leakage from the hydraulic sealing part of the steering gear or water leakage from the dust-proof part of the steering gear seal, which will lead to the failure of the steering hydraulic power booster and the internal corrosion of the steering gear, resulting in steering sticking and abnormal noise.

[0017] figure 2 It is a structural schematic diagram of the sealing structure of the rack and pinion steering gear of the present invention, image 3 Schematic diagram of the struct...

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Abstract

The invention discloses a rack and pinion steering gear sealing structure which comprises a gear shaft adjusting screw plug (1) and a dust seal (2) matched with the gear shaft adjusting screw plug (1), wherein the dust seal (2) is mounted in the gear shaft adjusting screw plug (1), and is clung to the inner wall of the gear shaft adjusting screw plug (1); a groove (3) is formed in the inner wall of the gear shaft adjusting screw plug (1) and in the position corresponding to the dust seal (2). According to the rack and pinion steering gear sealing structure adopting the structure, through the design of the groove structure at the high-low pressure oil seal part or the dust seal assembling part, when a high-low pressure oil seal and the dust seal are completely assembled in place according to the conventional processing precision requirement and assembly process condition, under a relatively strong axial component force, the groove structure can play a barb role, and the magnitude of interference and the resisting force of sealing part rubber and the coordinated part are increased, so that the problem that the sealing part is divorced from the coordinated part after being used for a long time is solved.

Description

technical field [0001] The invention relates to an anti-dropping device for the sealing structure of a rack and pinion steering gear, in particular to a sealing part suitable for a hydraulic cylinder body, an assembly part of a dust seal and the like. Background technique [0002] The seal between the hydraulic piston of the rack and pinion hydraulic steering gear, the seal between the upper and lower structures of the hydraulic steering valve, and the dust-proof seal of the input shaft of the mechanical steering gear are all sealed and protected by high and low pressure oil seals and dust seals. dust. The high and low pressure oil seals and dust-proof seals of the steering gear generally require high machining accuracy, and the roughness is below Ra1.6. For the press-fitting of the seal, a certain amount of lubricating oil will be sprayed on the matching parts or an appropriate amount of grease will be applied to the outer diameter of the dust seal, so as to ensure that th...

Claims

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Application Information

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IPC IPC(8): B62D3/12F16J15/16
Inventor 梁谨江火文姚剑鸣
Owner WUHU HENGLONG AUTO STEERING SYST
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