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Master control multichannel conversion valve

A multi-way reversing valve, one-way valve technology, applied in the direction of fluid pressure actuating devices, servo motor components, mechanical equipment, etc., can solve the principle and practical degree to explore the oil replenishment method and other problems, to eliminate hidden troubles, leakage Low volume, high versatility

Inactive Publication Date: 2013-01-09
崔安生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if some products are also designed with the oil replenishment function in the rapid lowering action of the boom, it can only be regarded as a simple imitation, and the new oil replenishment method has not been discussed from the principle and practical level

Method used

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  • Master control multichannel conversion valve
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Embodiment Construction

[0012] The structure and use of the present invention will be described in detail below in conjunction with the embodiments given in the accompanying drawings. Referring to the accompanying drawings, this kind of master control multi-way reversing valve includes an integral valve body (1), bucket valve stem (2), boom valve stem (3), main safety valve (4), overload oil supply valve (5), master control one-way valve (6), master control oil filling valve (7) etc. The integral valve body (1) has two-sided master control oil passages (8) and master control replenishment oil passages (9) that communicate with each other. In the disclosed design, the one-way valve oil passages and the replenishment valve oil passages are designed to be two, three or even several. The above-mentioned oil passage is simplified, the wall thickness of the valve body is more uniform, and casting defects such as trachoma, shrinkage cavity, and looseness are avoided.

[0013] In the integral valve body (1...

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Abstract

The invention discloses a master control multichannel conversion valve, which comprises an integrated valve body (1), a rotating bucket valve rod (2), a movable arm valve rod (3), a main safety valve (4), an overload oil replenishing valve (5), a master control one-way valve (6) and a master control oil replenishing valve (7), wherein through design of master control oil passages (8) at two sides, which are communicated in the integrated valve body (1), as well as a master control oil replenishing channel (9), one-way mobility of oil of the master control multichannel conversion valve from an oil inlet of the valve to any working port can be controlled simultaneously by the master control one-way valve (6); the master control oil replenishing valve (7) can provide an oil replenishing function required for insufficient oil feeding of any working port in a reversing process; and oil paths of the master control multichannel conversion valve are connected in parallel. The master control multichannel conversion valve has the advantages that through layout of the master control oil passages at two sides, which are communicated in the integrated valve body, as well as the master control oil replenishing channel, master control design of the one-way valve and the oil replenishing valve can be realized. Through design of the master control oil passages at two sides, which are mutually communicated as well as the master control oil replenishing channel, and master control layout of the one-way valve and the oil replenishing valve, an inner structure of the valve body is simplified.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery, and relates to a multi-way reversing valve, in particular to a master control multi-way reversing valve suitable for the working hydraulic system of a loader. Background technique [0002] In the several integral multi-way valve embodiments that have been announced, the oil circuit form of the multi-way valve still adopts the usual series-parallel oil circuit form of the original DF multi-way reversing valve, that is, the oil inlet of each multi-way valve It is connected in series, and the oil return is connected in parallel. Its characteristic is that when the rotary bucket is in the reversing position, the oil inlet passage of the subsequent boom is cut off, so the two-way multi-way valve cannot have any composite action. , the Zhuan Dou Lian in front always takes the priority action. Regardless of the installation position of the above multi-way valve, each reversing valve must ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02
Inventor 崔安生
Owner 崔安生
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