Bidirectional differential-motion proportional pressure regulating mechanism

Abstract

A bidirectional differential-motion proportional pressure regulating mechanism comprises a fluid laminar flow implementing mechanism, a first pressure measuring point, a second pressure measuring point and a pressure measuring point position regulating mechanism. The fluid laminar flow implementing mechanism comprises a valve core and a valve sleeve, wherein an oil inlet, a first oil outlet and a second oil outlet are formed in the valve sleeve, and the oil inlet is arranged between the first oil outlet and the second oil outlet. Working steps matched with the inner diameter of the valve sleeve are arranged at two ends of the valve core, and the clearances of the working steps of the valve core and the valve sleeve are communicated with the oil inlet, the first oil outlet and the second oil outlet. The first pressure measuring point and the second pressure measuring point are both pressure measuring holes penetrating through the valve sleeve, and the pressure measuring holes are communicated with the clearances. The pressure measuring point position regulating mechanism comprises the valve core and a pushing component pushing the valve core to move inside the valve sleeve, and the movement of the valve core enables an L1 and an L2 to change between 0 and L. The bidirectional differential-motion proportional pressure regulating mechanism has the advantages that bidirectional rectilinear motion is adopted to achieve bidirectional differential-motion proportional stable pressure regulating, and control sensitivity is high.

Description

technical field [0001] The invention relates to a two-way differential proportional pressure regulating mechanism. Background technique [0002] Proportional pressure control valves are often used as pilot valves to form two-stage or three-stage valves. For example, the electro-hydraulic proportional reversing valve is composed of an electromagnetic force motor, a proportional pressure reducing valve and a hydraulic directional valve. Balance, so as to control the displacement opening of the reversing main valve. The existing two-way electro-hydraulic proportional reversing valve has the problems of lack of control sensitivity and high processing difficulty. Contents of the invention [0003] In order to solve the problems of lack of control sensitivity and unstable pressure of the current two-way valve, the present invention proposes a two-way differential proportional pressure regulating mechanism with high control sensitivity, stable pressure regulation and low proces...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of lack of control sensitivity and unstable pressure of the current two-way valve, the present invention proposes a two-way differential proportional pressure regulating mechanism with high control sensitivity, stable pressure regulation and low processing difficulty

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