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A slide valve structure

A slide valve and spool technology, applied in the field of aviation systems, can solve the problems of poor anti-pollution ability of servo valves, high failure rate of servo valve control devices, no solenoid valves, etc., to achieve poor anti-pollution ability, considerable economic value, good military value effect

Active Publication Date: 2019-03-01
QINGAN GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The hydraulic control mechanisms currently used in China are controlled by servo valves. Due to problems such as poor anti-pollution ability of servo valves, immature servo valve technology, and large zero, the failure rate of servo valve control devices is high.
So far, there is no model matching and application of solenoid valve control hydraulic control components in China, which shows that domestic technology is not yet mature.

Method used

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  • A slide valve structure
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Embodiment Construction

[0022] A slide valve structure is provided, the slide valve structure includes a housing (1), a spool (2), a left piston (3), a right piston (4), a stop ring (5), a fixed shaft (6), a spring ( 12) and valve sleeve assembly (13);

[0023] A valve sleeve cavity, a piston cavity and a valve core control cavity are formed in the housing in sequence from left to right, and the three cavities are sealed and isolated;

[0024] The valve sleeve assembly (13) is installed in the valve sleeve cavity, and the valve sleeve assembly (13) is tightly connected with the casing (1);

[0025] The left and right pistons, stop ring (5) and fixed shaft (6) are all located in the piston cavity;

[0026] The valve core (2) is arranged in the valve sleeve cavity, the piston cavity and the valve core control cavity, and can slide left and right in the valve sleeve cavity and the piston cavity;

[0027] The left piston, the stop ring (5) and the right piston are sleeved on the outer circumference of ...

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Abstract

The invention relates to a slide valve structure. Formation ranges of two valve cores are adopted to control a rotation direction of a hydraulic motor; high-pressure oil enters a pressure sensor detection cavity after a sliding valve moves, a sensor feeds back a signal when detecting that the pressure is greater than a specified value, and a drop brake electromagnetic valve is started to relieve brake of the hydraulic motor; one electromagnetic valve controls the position of a piston and achieves travel control on the sliding valve, thereby achieving control on output rotating speed of the hydraulic motor. The problems that a traditional servo valve control device is poor in anti-pollution capacity, large in zero offset and high in fault rate are solved.

Description

technical field [0001] The present invention relates to aviation system technology. Background technique [0002] The hydraulic control mechanisms currently used in China are controlled by servo valves. Due to problems such as poor anti-pollution ability of servo valves, immature servo valve technology, and large zero, the failure rate of servo valve control devices is high. So far, there is no model matching and application of solenoid valve control hydraulic control components in China, which shows that domestic technology is still immature. [0003] Due to the foreign technology blockade, it is difficult to publicly obtain relevant technical information, so it is urgent to develop hydraulic control components suitable for the solenoid valve control of the hydraulic drive device of the high-lift system and the hatch drive device. SUMMARY OF THE INVENTION [0004] Technical solutions [0005] A slide valve structure is provided, the slide valve structure includes a hous...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K11/07F16K31/122F15B13/02
CPCF15B13/02F16K11/07F16K31/1225
Inventor 王家庆王猛
Owner QINGAN GRP