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High-temperature-resistant low-temperature oil path connecting structure

A technology with high and low temperature resistance and connection structure, which is applied in the direction of sleeve/socket connection, pipe/pipe joint/pipe fitting, passing components, etc., which can solve the problem of O-ring sealing performance degradation and affect the sealing of actuator cylindrical connection structure Effect and other issues, to achieve the effect of preventing oil leakage, improving stability and reducing oil leakage

Inactive Publication Date: 2019-05-17
JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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  • Summary
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AI Technical Summary

Problems solved by technology

This kind of connection structure using the same rubber O-ring will reduce the sealing performance of the O-ring at the extreme operating temperature, which will seriously affect the sealing effect of the cylindrical connection structure of the actuator.

Method used

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  • High-temperature-resistant low-temperature oil path connecting structure

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0016] A high and low temperature resistant oil circuit connection structure of the present invention, comprising a cannula (1), a protective ring (2), two first sealing rings (3) and two second sealing rings (4); figure 1 shown.

[0017] Wherein, the cannula (1) has a cylindrical structure, the surface treatment of the cannula (1) adopts H·Y, and the heat treatment adopts HRC28-32. There are four annular sealing grooves on the outside of the tube wall of the intubation tube (1). The first sealing rings (3) are respectively installed in the annular sealing grooves at both ends of the intubation tube (1). A second sealing ring (4) is respectively installed in the sealing groove, and a protective ring (2) is installed outside the sealing ring in the annular sealing groove of the intubation tube (1).

[0018] The first sealing ring (3) and the second sealing r...

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Abstract

The invention relates to a high-temperature-resistant low-temperature oil path connecting structure. The structure comprises a cannula(1), a protecting ring(2), two first sealing rings(3) and two second sealing rings(4). The structure provides a seal to a cylindrical housing through a seal ring disposed at the bottom of the cannula seal groove, the sealing ring is tightly fitted with the inner hole of the fitting part, a sealing ring made of different fluoroplastics is adopted, the structure can obviously improve the high temperature resistance and the low temperature resistance range of thesealing piece, improve the wear resistance and the service life of the sealing piece, and the stability of the actuator is improved and the oil leakage is prevented.

Description

technical field [0001] The invention belongs to the field of hydraulic engineering, and in particular relates to a high and low temperature resistant oil circuit connection structure. Background technique [0002] The traditional cylindrical oil circuit connection structure of the actuator is generally sealed with an O-ring of the same rubber material, and the sealing groove is filled through the elastic deformation of the O-ring to achieve the sealing effect. In the connection structure using the O-ring of the same rubber material, the sealing performance of the O-ring will decrease under the extreme service temperature, which will seriously affect the sealing effect of the cylindrical connection structure of the actuator. Contents of the invention [0003] Purpose of the present invention: [0004] To overcome the deficiencies in the above prior art, a connection structure with high reliability, long service life, high temperature and low temperature resistance, simple ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L21/03
Inventor 王潮敏孙志超徐传胜
Owner JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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