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Two-position five-way electromagnetic reversing valve applied to electro-hydraulic steering systems

A technology of electromagnetic reversing valve and steering system, applied in multi-way valve, valve details, valve device and other directions, can solve the problems of heavy weight, large installation space, poor safety of hydraulic valve, etc., achieve simple structure, meet safety, Ensure the effect of safety protection

Active Publication Date: 2016-11-09
TAIYUAN HEAVY MACHINERY GRP YUCI HYDRAULIC IND JINAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional electro-hydraulic steering system has the following disadvantages: a wide variety of hydraulic valves, poor safety, heavy weight, and large installation space

Method used

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  • Two-position five-way electromagnetic reversing valve applied to electro-hydraulic steering systems
  • Two-position five-way electromagnetic reversing valve applied to electro-hydraulic steering systems
  • Two-position five-way electromagnetic reversing valve applied to electro-hydraulic steering systems

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Embodiment Construction

[0025] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

[0026] see Figure 1-3 , a two-position five-way electromagnetic reversing valve used in an electro-hydraulic steering system, including a valve sleeve 1, a valve core 2, a valve seat 3 and an electromagnet 14; one end of the valve seat 3 is fixedly connected to the electromagnet through thread fit 14. The connection between the valve seat 3 and the electromagnet 14 is provided with a first O-ring 17 to prevent the oil inside the electromagnetic reversing valve from leaking to the outside, and the other end of the valve seat 3 is fixedly connected to the valve sleeve 1 through thread fit. A second O-ring 10 is provided at the connection between the valve seat 3 and the valve sleeve 1, and the second O-ring 10 prevents the oil inside the electromagnetic reversing valve from leaking to the outside; the valve core 2 is composed of a small d...

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Abstract

The invention discloses a two-position five-way electromagnetic reversing valve applied to electro-hydraulic steering systems. The two-position five-way electromagnetic reversing valve comprises a valve sleeve, a valve element, a valve seat and an electromagnet, wherein one end of the valve seat is fixedly connected with the electromagnet in a thread fit manner; the other end of the valve seat is fixedly connected to the valve sleeve in a thread fit manner; the valve element consists of a valve element small-diameter section and a valve element large-diameter section; one end of the valve element small-diameter section is fixedly connected to a spring seat; the valve element is assembled in the valve sleeve; a spring cavity is formed in a thread end, connected to the valve seat, of the valve sleeve; the valve element small-diameter section is assembled in the spring cavity of the valve sleeve; a flat washer is also arranged in the spring cavity of the valve sleeve; a returning spring is arranged between the spring seat and the flat washer; a pushing rod is arranged in the electromagnet; one end of the pushing rod is in contact with the valve element; an oil opening A, an oil opening P, an oil opening P1 and an oil opening B are successively formed in the valve sleeve along an axial direction; a reversing valve T opening is formed in the valve element large-diameter section. The two-position five-way electromagnetic reversing valve is small in occupied mounting space; the requirements on safety and compactness of vehicle-mounted systems can be met.

Description

technical field [0001] The invention relates to the technical field of vehicle electro-hydraulic power steering systems, in particular to a two-position five-way electromagnetic reversing valve used in the electro-hydraulic steering system. Background technique [0002] Since the mechanical hydraulic power assist needs to consume a lot of engine power, people have improved on the basis of the mechanical hydraulic power assist and developed a more energy-saving electro-hydraulic power steering system, referred to as the electro-hydraulic steering system. The steering oil pump of this system is no longer directly driven by the engine, but is driven by the electric motor, and an electronic control system is installed on the basis of the previous one, so that the magnitude of the steering assist force is not only related to the steering angle, but also related to the vehicle speed. Electro-hydraulic power assist has most of the advantages of mechanical hydraulic power assist, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/07F16K31/06F16K27/04
CPCF16K11/0712F16K27/04F16K31/061
Inventor 刘慧田丽红
Owner TAIYUAN HEAVY MACHINERY GRP YUCI HYDRAULIC IND JINAN CO LTD
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