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Automatic limiting regulator for steering wheel

A technology of automatic limit and regulator, applied in the direction of fluid steering mechanism, etc., to achieve the effect of ensuring safety and good sealing performance

Inactive Publication Date: 2014-12-24
HUBEI XUYANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] According to the search, there is no patent application identical to the utility model in China

Method used

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  • Automatic limiting regulator for steering wheel
  • Automatic limiting regulator for steering wheel
  • Automatic limiting regulator for steering wheel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0023] Embodiments of the present invention: as image 3 , A-B oil circuit: When the pressure oil enters the B cavity, when the rack piston 1 moves to the left to the limit position relative to the cylinder bumper, the stroke unloading valve stem 2 will move to the right and the limit spring sleeve 3 as shown in the figure The left end surface is even. If the steering wheel swing angle of the car does not reach the design value at this time, you can quickly turn the steering wheel until it reaches the design value. When the pressure oil enters the B cavity Figure 4 The rack piston shown moves to the left, and when it reaches the limit position, the stroke bumper 8 pushes down the stroke unloading valve rod 2 to be flush with the limit spring sleeve 3, and the limit spring sleeve 3 will relatively fix the lock nut by overcoming the elastic force 4 Move to the right, and make the stroke unloading valve stem 2 and the limit spring sleeve 3 run quickly and synchronously to the ca...

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Abstract

The invention provides an automatic limiting regulator for a steering wheel. A front rod of an inner stroke unloading valve rod of a rack piston is arranged in a limiting spring sleeve and is in clearance fit with the limiting spring sleeve; a rear rod of the stroke unloading valve rod is arranged in a pressure spring; a fixing nut and the limiting spring sleeve form interference fit by the elastic force action applied to the limiting spring sleeve; the fixing nut and the rack piston are connected by threads; the stroke unloading valve rod and the limiting spring sleeve form conical sealing under the action of the pressure spring under the normal state; separated oil paths A and B of a left cavity and a right cavity on the limiting spring sleeve in the rack piston are closed under the normal state. The defect of the inaccurate positioning precision in the process that the steering wheel adjusts the corner unloading position is solved, conical surface rigid sealing is adopted, the sealing performance is good and the automatic limiting regulator has an automatic compensation function.

Description

technical field [0001] The invention relates to an automatic limit mechanism for a steering machine in mechanical transmission, in particular to an automatic limit adjuster for a hydraulic steering machine. Background technique [0002] Steering gear (steering gear) is a safety component in auto parts. It receives the steering information from the steering wheel, and through the boosting action of the oil pump, increases the output torque and drives the steering mechanism of the front car to realize easy steering. The maximum rotation angle and precision of the steering gear are realized by adjusting the limit mechanism in the steering gear. Generally, the adjustment of the steering gear is to control the unloading time of the steering gear by adjusting the length of the adjustment positioning nut on the oil cylinder (such as Figure 4 ), time-consuming and labor-intensive adjustment. [0003] According to retrieval, there is not yet the same patent application as the utilit...

Claims

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Application Information

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IPC IPC(8): B62D5/06
Inventor 戴雄李有红胡开林
Owner HUBEI XUYANG IND & TRADE
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