Working valve plate and electro-hydraulic proportional multi-way valve

A working valve and valve stem technology, which is applied to lifting devices, fluid pressure actuating devices, servo motor assemblies, etc., can solve the problems of low operating comfort of multi-way valves, low control accuracy and operating efficiency of multi-way valves, etc. The effect of improving control accuracy, operating efficiency, and improving operating comfort

Pending Publication Date: 2022-04-08
ZHEJIANG HAIHONG HYDRAULIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a working valve plate and an electro-hydraulic proportional multi-way valve to solve the problem that the existing working valve plate uses a manual method to push the valve stem to move, resulting in low operating comfort of the multi-way valve and the multi-way valve The problem of low control accuracy and operating efficiency

Method used

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  • Working valve plate and electro-hydraulic proportional multi-way valve
  • Working valve plate and electro-hydraulic proportional multi-way valve

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Embodiment Construction

[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and thus should not be construed as limiting the application.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying ...

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Abstract

The invention relates to a working valve plate and an electro-hydraulic proportional multi-way valve, the working valve plate comprises a valve body and a valve rod, the valve body is provided with a first pressure channel and a second pressure channel which are communicated with a valve cavity, the working valve plate further comprises an electromagnetic valve assembly, and the electromagnetic valve assembly is used for controlling on-off of the first pressure channel and the second pressure channel. The valve rod is provided with a throttling groove distributed in the length direction, and the main oil inlet channel communicates with the first oil distribution channel and the second oil distribution channel through the throttling groove. According to the working valve plate and the electro-hydraulic proportional multi-way valve, the problems that according to an existing working valve plate, a valve rod is pushed to move in a manual mode, so that the operation comfort of the multi-way valve is low, and the control precision and the operation efficiency of the multi-way valve are reduced are solved.

Description

technical field [0001] The application relates to the technical field of engineering machinery hydraulic components, in particular to a working valve plate and an electro-hydraulic proportional multi-way valve. Background technique [0002] As an industrial handling vehicle, forklifts are indispensable for the development of modern industry. Industrial handling vehicles are widely used in ports, stations, airports, freight yards, factory workshops, warehouses, distribution centers and distribution centers, etc., and forklifts can enter cabins, carriages and containers for loading, unloading and handling of palletized goods. , The essential equipment in container transportation. [0003] Usually, a forklift uses a multi-way valve as a power element to control the forward or backward tilt of the forklift in front of the forklift. Moreover, the multi-way valve usually includes an oil inlet valve section, an oil return valve section and a plurality of working valve sections. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02B66F9/22
Inventor 王军张辉李林德钟麒何贤剑陈莉
Owner ZHEJIANG HAIHONG HYDRAULIC TECH
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