A vehicle steering assist automatic centering device

A power steering and automatic centering technology, applied in the field of vehicles, can solve problems such as large space occupation, multiple spaces, and inaccurate centering
CN114475773BActive Publication Date: 2022-07-01TAIYUAN HEAVY MACHINERY GRP YUCI HYDRAULIC IND JINAN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TAIYUAN HEAVY MACHINERY GRP YUCI HYDRAULIC IND JINAN CO LTD
Publication Date
2022-07-01

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Abstract

The invention provides a steering assist automatic centering device for a vehicle, which includes a steering cavity, a piston, a piston rod, a centering cavity and a ball joint. One end of the piston rod is connected with the ball joint by threads; There is a groove, and the steel wire retaining ring for the shaft is installed in the groove, and the wire retaining ring for the shaft associates the piston rod with the two floating pistons to form a kinematic pair; the steering cavity and the centering cavity are connected with the middle end cover through clearance fit; The middle cavity is fixed with a guide sleeve through a steel wire retaining ring and a shaft elastic retaining ring; a shaft seal is installed between the guide sleeve and the piston rod; a shaft guide ring is installed between the piston rod and the two floating pistons and the middle end cover. The first guide ring for holes is arranged between the two floating pistons and the intermediate cavity, and the second guide ring for holes is arranged between the pistons and the steering cavity. The device realizes the integrated design of power steering and automatic centering, greatly saves space, significantly reduces weight, and has an easy-to-implement structure, which is suitable for mass production and application.
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Description

technical field

[0001] The invention belongs to the technical field of vehicles, and in particular relates to a steering assist automatic centering device for vehicles. Background technique

[0002] With the rapid development of my country's economic construction, transportation has become the artery of the sustainable development of the national economy. Vehicles are an integral part of transportation. Vehicles have complex operating conditions, especially heavy-duty vehicles, with large loads, long body length, large number of axles, large vehicle turning radius, and poor handling stability. At present, rear-wheel steering is an effective way to solve these problems.

[0003] Usually, a centering device is provided on the rear wheel steering axle of medium and heavy commercial vehicles or special vehicles, which is used to ensure that the wheels of the rear steering axle are relatively stable in the middle position (straight line position). At present, there are mainly 4...

Claims

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