Bidirectional dual-redundancy proportional pressure regulating mechanism

Abstract

A bidirectional dual-redundancy 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 two notches are axially formed in the side wall of each working step. 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 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. The bidirectional dual-redundancy proportional pressure regulating mechanism has the advantages that a double-flow-passage structure is adopted, even if one of the flow passages is blocked, the pressure regulating mechanism can still work normally, the problem that a pressure regulating mechanism is easy to block is effectively solved, and pressure regulating is stable.

Description

technical field [0001] The invention relates to a bidirectional double redundant dynamic proportional pressure regulating mechanism. Background technique [0002] Redundancy is a design method considered to ensure safety. It requires two or more faults, rather than a single fault, to cause a predetermined undesired working state. 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 fluid pressure regulating mechanism - pressure control components such as relief valve, pressure reducing valve, sequence valve, etc., they all use the local pressure loss of the fluid in the small resistance hole To achieve pressure control, there are often many impurities in...

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Problems solved by technology

[0003] In order to solve the problem that the current two-way valve blockage leads to the failure of the entire system, the present invention proposes a two-way double-redundant proportional pressure regulating mechanism that avoids system failure caused by blockage

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