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Anti-cutting installation tool for blind hole rubber ring

A technology for installing tools and rubber rings, which is applied in the direction of manufacturing tools and hand-held tools, etc., can solve the problem that the sealing rubber ring is easy to be cut off, and achieve the effect of improving the installation method, facilitating the application of external force, and improving safety performance

Inactive Publication Date: 2019-08-06
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the sealing rubber ring is easy to be cut off when the sealing parts are installed, and to provide an anti-cutting installation tool for the blind hole rubber ring in view of the existing above-mentioned problems.

Method used

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  • Anti-cutting installation tool for blind hole rubber ring
  • Anti-cutting installation tool for blind hole rubber ring
  • Anti-cutting installation tool for blind hole rubber ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An anti-cut installation tool for blind hole rubber rings of the present invention comprises: a guide rod 4, a scaling mechanism 5, an elastic ring 6, and an expansion mandrel 7; the scaling mechanism 5 is cylindrical, and the lower part of the cylinder wall is axially provided with Groove 9, the lower end of the cylinder wall is provided with a step 11 and a radial ring groove 8; the zoom mechanism 5 is set on the lower section of the guide rod 4, the elastic ring 6 is installed in the ring groove 8, and the expansion mandrel 7 is fixed to the guide rod by thread Rod 4 lower ends.

[0021] The guide rod (4) is divided into upper and lower sections, the diameter of the upper section is smaller than that of the lower section, and the upper section of the guide rod (4) is provided with a booster mechanism (3); the end of the upper section of the guide rod (4) is provided with a limit nut (1) to limit the booster The stroke of the mechanism (3); the gasket 2 is installed a...

Embodiment 2

[0023] The present invention is an anti-cut installation tool for a rubber ring with blind holes, comprising: a guide rod 4, a scaling mechanism 5, an elastic ring 6, and an expansion mandrel 7; 3 cooperate to play a guiding role; the big end cooperates with the inner hole 12 of the scaling mechanism 5; The scaling mechanism 5 is cut and slotted at multiple places 9 in the horizontal direction, and the radial ring groove 8 is used. The horizontal slotting can realize the uniform shrinkage of the scaling mechanism 5 when it is stressed, and the elastic ring 6 is installed in the radial slot; the optical hole 12 at the upper end of the scaling mechanism 5 Cooperate with the guide rod 4; the root of the scaling mechanism 5 is processed with a rounding 10, which is convenient for passing through the sealing rubber ring;

Embodiment 3

[0025] An anti-cutting installation tool for a rubber ring with blind holes in the present invention, comprising: a limit nut 1, a gasket 2, a force applying mechanism 3, a guide rod 4, a scaling mechanism 5, an elastic ring 6, an expansion mandrel 7; the elastic ring 6. The inner diameter is smaller than the outer diameter 8 of the radial groove when the scaling mechanism 5 is in the expanded state. The scaling mechanism 5 is in a shrinking state when no external force is applied, and the scaling mechanism 5 can expand when an external force is applied. The expansion mandrel 7 is fixed on the end of the guide rod 4 through the internal thread 16, and its outer diameter matches the inner diameter when the scaling mechanism 5 is expanded, and a rounding 15 is processed on the outer circle. to the guiding role.

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Abstract

The invention discloses an anti-cutting installation tool for a blind hole rubber ring. The anti-cutting installation tool comprises a guide rod, a scaling mechanism, an elastic ring and an expansionmandrel; the scaling mechanism is cylindrical; the lower part of the cylinder wall is provided with a groove in the axial direction; the lower end of the cylinder wall is provided with a step and an annular groove in the radial direction; the scaling mechanism is arranged at the lower section of the guide rod in a sleeving mode; the elastic ring is installed in the annular groove; and the expansion mandrel is fixed at the lower end of the guide rod through threads. The retractable scaling mechanism is designed, the sealing rubber ring is expanded and fixed in an inner rubber ring groove and then is filled with a sealing element, so that the problem of cutting off part of the rubber ring at the port when a sealing part is installed due to the fact that the sealing rubber ring cannot be centered in the sealing groove can be solved; and through the use of the device, a traditional installation method of the sealing rubber ring in the inner rubber ring groove can be improved, the risk thatthe rubber ring is cut after being installed is avoided, and the safety performance of a sealed product is improved.

Description

technical field [0001] The invention relates to the technical field of mechanical assembly, in particular to the technical field of blind hole rubber ring installation. Background technique [0002] Aircraft fuel, hydraulic and lubrication systems are equipped with a large number of seals. There are as many as 10,000 seals used in a large passenger aircraft, and the quality of the seals directly affects the performance of aviation products and flight safety. In the failure of aircraft accessories, oil leakage and air leakage caused by problems with sealing rubber rings are quite common. According to preliminary statistics, 2 / 3 of the failures in the hydraulic system of passenger aircraft are due to system leakage caused by poor sealing performance. At present, the sealing of aircraft hydraulic, fuel and other systems is basically guaranteed by rubber seals. The installation of the sealing rubber ring includes the installation of the outer rubber ring and the installation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/00
CPCB25B27/0028
Inventor 李国伟刘晓蓉谭敏超张林王慧刘沛亮
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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