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multi-way valve

A technology of multi-way reversing valve and reversing valve, which is applied in the field of hydraulic valves, can solve the problems that the energy-saving effect of multi-way reversing valve is not obvious, and achieve the effect of improving operation efficiency, reducing energy loss and improving controllability

Active Publication Date: 2018-06-15
广西中源机械有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a multi-way directional valve with obvious energy-saving effect in the hydraulic system for the problem that the existing multi-way directional valve has no obvious energy-saving effect in the hydraulic system

Method used

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Embodiment Construction

[0025] The specific implementation will be described below in conjunction with the accompanying drawings.

[0026] Such as figure 1 As shown, the multi-way reversing valve in this embodiment includes a first reversing module 101 , a second reversing module 102 and a confluence module 103 .

[0027] The first reversing module 101 is used in the hydraulic system to control the first hydraulic actuator, for example, in the loader hydraulic system to control the boom cylinder. The first reversing module 101 includes the first reversing module reversing valve 17 and the first switching valve 171 synchronously linked with the first reversing module reversing valve 17, the first reversing module reversing valve 17 is a neutral function O-type four-position six-way reversing valve, the first switching valve 171 is a four-position two-way valve. Both ends of the spool of the first reversing module reversing valve 17 respectively have a Pa1 pilot control oil port and a Pb1 pilot contr...

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Abstract

The invention relates to a multiway reversal valve. In order to solve the problem that an existing multiway reversal valve is not obvious in energy conservation effect in a hydraulic system, the invention provides a multiway reversal valve, wherein a P1 hydraulic fluid port is connected with a first reversing module and a first hydraulic fluid chamber of a hydraulic control one-way valve; a P2 hydraulic fluid port is connected with a second reversing module and a second hydraulic fluid chamber of the hydraulic control one-way valve; a spring chamber of the hydraulic control one-way valve is connected with a three-way oil way, one oil way is sequentially connected with an oil box loop through a first overflow valve and a first damping hole, and the other oil ways are respectively connected with the oil box loop through a first switch valve linked with a reversal valve of the first reversing module and a second switch valve linked with a reversal valve of the second reversing module; a spring chamber of a two-position two-way reversal valve is connected with an oil outlet end of the first overflow valve. The multiway reversal valve is capable of reducing the energy loss of the hydraulic system and improving the operating efficiency.

Description

technical field [0001] The present invention relates to a hydraulic valve, more specifically, to a multi-way reversing valve. Background technique [0002] At present, the multi-way valves commonly used in construction machinery, especially loaders, include open center multi-way valves and closed center multi-way valves. Among them, the open center multi-way valves are throttling and speed-regulating types, with mature technology and simple structure. Its technical characteristics, its energy consumption is relatively high, and its controllability is poor; in addition, the closed center multi-way reversing valve changes the throttling and speed regulation characteristics of the open center system, and realizes the flow on demand through the displacement change of the variable pump. supply, reducing the throttling loss. At the same time, in order to achieve good control performance, the method of pressure compensation is currently used to realize the action coordination of mu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/02
Inventor 王宜前朱庆轩
Owner 广西中源机械有限公司
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