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Damping noise reduction structure and damping noise reduction method for control valve of automobile hydraulic power steering gear

A technology of hydraulic power and steering gear, which is applied to power steering mechanism, steering mechanism, vehicle parts, etc., and can solve the problems of deflection of the auxiliary oil port on the surface of the valve port, low assembly qualification rate, and incomplete cutting edge.

Pending Publication Date: 2021-07-06
朝阳汽车转向器有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 2.2 When the steering control valve is processing six inner surfaces and six outer surface oil grooves, on the one hand, it is affected by the indexing error; , The centering error of the valve core positioning pin leads to uneven clearance between the screw rod and the valve sleeve in the circumferential direction, etc.
The processing accuracy of the workpiece is completely controlled by the operator; the quality stability is difficult to guarantee, the pass rate of subsequent assembly is low, and the production cost is high

Method used

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  • Damping noise reduction structure and damping noise reduction method for control valve of automobile hydraulic power steering gear
  • Damping noise reduction structure and damping noise reduction method for control valve of automobile hydraulic power steering gear
  • Damping noise reduction structure and damping noise reduction method for control valve of automobile hydraulic power steering gear

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Such as Figure 1-2 As shown, the present invention provides a control valve damping and noise reduction structure for an automobile hydraulic power steering gear, including a steering screw 16, a valve sleeve 15 and a spool assembly, wherein the spool assembly is inserted in the central hole of the steering screw 16, and One end is connected with the steering screw 16, the valve sleeve 15 is sleeved on the other end of the valve core assembly, and is positioned and connected with the valve core assembly, the outer surface of the valve sleeve 15 is in rotation with the steering screw 16, and the valve sleeve 15 is provided with a damping ring groove 153, a damping ring 1 is placed in the damping ring groove 153, and the damping ring groove ...

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Abstract

The invention belongs to the technical field of automobile power steering gears, and particularly relates to an automobile hydraulic power steering gear control valve damping noise reduction structure and a damping noise reduction method thereof. The structure comprises a steering screw, a valve sleeve and a valve element assembly, the valve element assembly is inserted into a center hole of the steering screw, one end of the valve element assembly is connected with the steering screw, the valve sleeve is arranged at the other end of the valve element assembly in a sleeving mode and connected with the valve element assembly in a positioning mode, the outer surface of the valve sleeve is in running fit with the steering screw, a damping ring groove is formed in the valve sleeve, and a damping ring is contained in the damping ring groove. The damping ring groove is communicated with a high-pressure oil groove in the valve sleeve through an oil guide groove. The resonance amplitude of the steering control valve of the automobile hydraulic power steering gear is reduced, the abnormal sound frequency is reduced, and the assembly qualification rate is increased.

Description

technical field [0001] The invention belongs to the technical field of automobile power steering gears, and in particular relates to a damping and noise reduction structure of a control valve of an automobile hydraulic power steering gear and a damping and noise reduction method thereof. Background technique [0002] The abnormal sound of the power steering gear is mainly caused by the vibration and noise of the steering gear, and the vibration and noise of the steering gear mainly come from the mechanical transmission of the power steering gear and the steering control valve. [0003] 1. Mechanical transmission of power steering gear [0004] There are about 60 kinds of parts in the power steering gear; especially the main key parts such as the valve sleeve, valve core, steering screw and torsion bar in the control valve, the technical requirements are high precision, and the processing is difficult. shape error. If all are processed according to the boundary size, the cu...

Claims

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Application Information

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IPC IPC(8): B62D5/083
CPCB62D5/083
Inventor 李殿海吴若杰祝宗强张旭东吴广仓刘淑玲赵庄王化启徐玉冰
Owner 朝阳汽车转向器有限公司
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