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Hydraulic locking device for flexible seal of conical surface

A locking device and soft sealing technology, applied in fluid pressure actuating devices, etc., can solve problems such as poor sealing, offset, zero leakage, etc., and achieve reliable sealing, reduced oil leakage, and high-reliability soft-tight conical surface Effect

Active Publication Date: 2017-02-08
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical solution of the present invention: In order to overcome the deficiencies of the prior art, a hydraulic locking device with a soft seal on the conical surface is provided to solve the zero position caused by leakage caused by poor sealing during the non-working process of the thrust liquid oxygen kerosene engine offset problem

Method used

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  • Hydraulic locking device for flexible seal of conical surface
  • Hydraulic locking device for flexible seal of conical surface
  • Hydraulic locking device for flexible seal of conical surface

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, a hydraulic locking device with a soft seal on a conical surface includes a first plugging cover 1, a housing 2, a first hydraulically controlled one-way valve core 3, a second hydraulically controlled one-way valve core 4, and a second plugging cover 5 And the return spring 16, the housing 2 is a hollow structure, the first hydraulic control check valve core 3 and the second hydraulic control check valve core 4 are coaxially connected, through the first blocking cover 1 and the second hydraulic control valve core connected to the housing 2 The second blocking cover 5 is enclosed in the hollow structure of the housing 2;

[0025] The diameter of the middle shaft is smaller than the aperture of the housing 2, and the ratio of the diameter of the middle shaft to the aperture of the housing 2 is 70% to 50%. The housing 2 corres...

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Abstract

The invention discloses a hydraulic locking device for flexible seal of a conical surface. The hydraulic locking device comprises a first blank cover, a shell, a first hydraulic control one-way valve core, a second hydraulic control one-way valve core, a second blank cover and a reset spring. The hydraulic locking device is capable of realizing high-reliability flexible seal of the conical surface; the valve cores are integrally stressed by pressure impact from an actuator so as to realize own balance; by cooperation of the reset spring, a zero offset problem generated because of leakage caused by poor sealing is solved in a locked state, namely in a nonworking process of a thrust liquid oxygen kerosene engine, and the conventional sealing structure and sealing way are changed.

Description

technical field [0001] The invention relates to a hydraulic locking device with a soft seal on a conical surface, which belongs to the technical field of thrust vector control execution of launch vehicles. Background technique [0002] In the non-working process of the liquid oxygen kerosene engine used in the new generation of launch vehicles, its gravity eccentric moment can overcome the friction moment of the engine and the servo mechanism, so that the engine can swing to the limit swing angle, resulting in mutual contact between the engine and the engine and other parts of the rocket. At the same time, it also makes the engine swing hose bear a large deformation moment for a long time. In order to solve this problem, a device that can lock the zero position for a long time is added to the servo mechanism to help solve the problem of the zero position offset of the engine. [0003] In the prior art, the zero-position locking device adopts the combination sealing form of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/26
CPCF15B15/26F15B2015/268
Inventor 乔静刘会祥韦贯举马晓琛韩新苗付宁
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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