A high-pressure micro-motion regulating valve based on an air spring

A technology of air spring and regulating valve, which is applied in the direction of fluid pressure actuating device, lifting valve, valve device, etc., to achieve the effects of reducing insensitive area, improving control accuracy and easy maintenance

Active Publication Date: 2020-02-21
BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-pressure micro-motion regulating valve based on an air spring to overcome the defects of existing regulating valves in pressure regulation

Method used

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  • A high-pressure micro-motion regulating valve based on an air spring
  • A high-pressure micro-motion regulating valve based on an air spring
  • A high-pressure micro-motion regulating valve based on an air spring

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Such as figure 1 As shown, the air spring-based high-pressure micro-control valve of the present invention includes a locking cover 1, an air spring cavity 2, an air spring 3, an air spring connection seat 4, a first hexagon socket bolt 5, a return spring 6, an air Spring cavity welding base 7, second inner hexagon bolt 8, limited connection shaft 9, valve coupling 10, valve fixing seat 11, regulating valve 12; air spring cavity 2 and air spring cavity welding base 7 adopt argon Arc welding connection; the upper part of the air spring cavity 2 is provided with a locking cover 1; the lower end surface of the air spring 3 is connected with the air spring connection seat 4 through the first hexagon socket bolt 5, and placed in the air spring cavity 2; the return spring 6 is placed Between the air spring connection seat 4 and the air spri...

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Abstract

The invention belongs to the technical field of pressure adjusting fine control and particularly relates to a high-pressure fine movement regulating valve based on an air spring. An air spring cavityand an air spring cavity welding base are connected through argon arc welding. The upper portion of the air spring cavity is provided with a locking cover. The lower end face of the air spring is connected with an air spring connection base through a first internal hexagonal bolt, and the whole is put into the air spring cavity. A reset spring is arranged between the air spring connection base andthe air spring cavity welding base. The upper end of a valve fixing base is connected with the air spring cavity welding base through a second internal hexagonal bolt. A regulating valve body is arranged at the lower end of a valve fixing base. The regulating valve body is connected with the air spring connection base through a valve coupler and a limitation connecting shaft. The high-pressure fine movement regulating valve based on the air spring can be widely applied to the technical field of hydraulic pressure. Especially in aerospace and other industries with special requirements, different process requirements can be met, multiple hydraulic regulating manners are achieved, the structure is concise and compact, the cost is low, and maintaining is easy.

Description

technical field [0001] The invention belongs to the technical field of pressure regulation precision control, and in particular relates to a high-pressure micro-motion regulating valve based on an air spring. Background technique [0002] In the field of aerospace, the hydraulic strength test and burst test of products such as conduits and storage tanks have always played a very important role. They are indispensable testing links in the process of product finalization and mass production. Improvement, replacement of test equipment, the existing hydraulic adjustment method can not meet the needs of all products, so there is an urgent need for a high-precision, high-sensitivity control valve to meet the needs of different tasks. At present, more pressure regulating valves generally use a diaphragm or a piston to separate the inlet port and the outlet port. The principle of force balance is adopted. Given a fixed pressure, the pressure in the outlet port is equal to this press...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/12F16K1/00F15B13/043
CPCF15B13/043F16K1/00F16K31/12
Inventor 任大呈孙海涛孟祥军张志明任闽武东建吴佳灵李文峰张晓菲刘溢赵一阳韩景轩
Owner BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH
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