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Electric proportional multi-way valve

A technology of proportional multi-way valve and proportional decompression valve, which is applied in the field of hydraulic valves, can solve the problems of inconvenient installation and maintenance, many pipelines used, and large space occupation, and achieves convenient installation and maintenance, convenient installation and maintenance, and small space occupation Effect

Active Publication Date: 2014-02-26
四川省宜宾普什驱动有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing hydraulic control multi-way valve has the disadvantages of no pressure compensation, too many pipelines, large space occupation, high cost, and inconvenient installation and maintenance.

Method used

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  • Electric proportional multi-way valve
  • Electric proportional multi-way valve

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with accompanying drawing, protection scope of the present invention is not limited to the following:

[0020] Such as figure 1 As shown, an electronically controlled proportional multi-way valve includes a valve body 1, an overflow / anti-cavitation valve 2 is connected to the valve body 1, and the overflow / anti-cavitation valve 2 is threadedly connected to the valve body 1, and The two are sealed with an O-ring conical surface. The valve body 1 is provided with a main valve hole 3, and the main valve hole 3 is provided with a main valve core 4. The valve body 1 and the main valve core 4 are in clearance fit, and the main valve hole 3 It is connected with the oil inlet P and the oil outlet T of the hydraulic oil. There are two oil ports A22 and B23 connected with the actuator on the valve body 1. The two sides of the valve body 1 are connected with the electric proportional pressure reducing valve. com...

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Abstract

The invention discloses an electric proportional multi-way valve which comprises a valve body (1). Main valve holes (3) are provided with main spools (4), electric proportional reducing valve components are connected to two edges of the valve body (1), each electric proportional reducing valve component comprises a shell (5), an electromagnet (6), a reducing valve housing (7) and a reducing valve spool (8), a mandrel of each electromagnet (6) is abutted onto the each reducing valve spool (8), one end, which is connected with the valve body (1), of each shell (5) is provided with a cavity (10), the ends of the main spools (4) are located in the cavities (10), and the valve body (1) is further provided with a pressure compensation spool (14). The electric proportional multi-way valve has the advantages that hydraulic control is changed into electric proportional control by changing a control manner of the multi-way valve, pressure compensation is enhanced, and accordingly mounting pipelines of the multi-way valve are reduced, occupied space is small, cost is low, mounting and maintenance are convenient and intelligent control can be achieved.

Description

technical field [0001] The invention relates to the technical field of hydraulic valves, in particular to an electronically controlled proportional multi-way valve. Background technique [0002] The multi-way valve is a combined valve with more than two reversing valves as the main body, generally including an oil inlet valve body, two or more reversing valve bodies, and a tail valve body. According to the requirements of different hydraulic systems, the main Valves such as safety valve, one-way valve, overload valve, oil supply valve, diverter valve, and brake valve are combined together. Therefore, the multi-way valve has the advantages of compact structure, simple pipeline, small pressure loss and easy installation, and is more and more widely used in construction machinery, such as: excavators, loaders, cranes, etc. [0003] However, the existing hydraulic control multi-way valve has the disadvantages of no pressure compensation, too many pipelines, large space occupati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K11/07F16K31/12F16K31/06
Inventor 杨莽俞备李兴军李登曾品宁
Owner 四川省宜宾普什驱动有限责任公司
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