A kind of automobile rear wheel steering hydraulic cylinder

A rear wheel steering and hydraulic cylinder technology, applied in the field of steering hydraulic cylinders, can solve problems such as difficult layout, complex structure, and low system integration, achieve broad market prospects, facilitate maintenance, and avoid reduction or loss of working oil pressure Effect

Inactive Publication Date: 2017-09-01
CHINA NORTH VEHICLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a solution makes the structure complex, difficult to arrange, and the integration of the system is very low.

Method used

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  • A kind of automobile rear wheel steering hydraulic cylinder
  • A kind of automobile rear wheel steering hydraulic cylinder
  • A kind of automobile rear wheel steering hydraulic cylinder

Examples

Experimental program
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Embodiment Construction

[0033] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] In this embodiment, the rear wheel steering hydraulic cylinder of an automobile is taken as an example, as Figures 1 to 5 As shown, the automobile rear wheel steering hydraulic cylinder provided by the embodiment of the present invention includes a cylinder body 1 and a cylinder body 2 arranged coaxially, an intermediate end cover 7 is welded between the cylinder body 1 and the cylinder body 2, and the cylinder body 1 1 and the two ends of the cylinder body 2 are connected to the end cap 3 and the end cap 2 by threads respectively. The piston rod 5 passing through the end cover 3, the middle end cover 7 and the end cover 2 4 in turn is installed on the axis of the cylinder body 1 and the cylinder body 2, and the piston between the end cover 3 and the middle end cover 7 is installed. Piston 6 is arranged radially...

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PUM

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Abstract

The invention provides a rear wheel steering hydraulic cylinder of an automobile. The hydraulic cylinder comprises a cylinder body I and a cylinder body II which are coaxially arranged, wherein an end cover I, and end cover II and a middle end cover are radially arranged at two ends of the cylinder body I and the cylinder body II as well as between the cylinder body I and the cylinder body II respectively; a piston rod penetrating through the end cover I, the middle end cover and the end cover II is arranged at axes of the cylinder body I and the cylinder body II. The hydraulic cylinder is characterized in that a piston is radially arranged on the piston rod between the end cover I and the middle end cover; bosses I are radially arranged on the piston rod between the middle end cover and the end cover II at intervals, an axially floating piston I is arranged on the piston rod between the bosses I and the middle end cover, and an axially floating piston II is arranged on the piston rod between the bosses I and the end cover II. Compared with the prior art, the rear wheel steering hydraulic cylinder of the automobile is simple in structure, safe and reliable and integrates steering, centering and locking functions.

Description

technical field [0001] The invention relates to a steering hydraulic cylinder, in particular to an automobile rear wheel steering hydraulic cylinder integrating the functions of steering, centering and locking. Background technique [0002] With the development of heavy-duty vehicles and military vehicles, the vehicle load is getting larger and larger, the number of axles is increasing, and the length of the vehicle body is also lengthening. Correspondingly, problems such as severe tire wear, large turning radius, and poor handling stability have become increasingly prominent, and the inventor has found through long-term research that rear wheel steering is an effective way to solve these problems. [0003] The electronically controlled hydraulic rear wheel steering is only advantageous for medium-sized or heavy vehicles with a tonnage of more than 5 tons; for cars, the electronically controlled electric type is the best, in which the electronic control unit controls the flo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/14F15B15/26
CPCF15B15/14F15B15/1433F15B15/1438F15B15/1447F15B15/26
Inventor 郑凯锋王磊王超廖桐舟刘启佳冯占宗杨桂玲杨克萍房加志周舰
Owner CHINA NORTH VEHICLE RES INST
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