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High pressure resistant spring type mechanical sealing device

A mechanical seal device, spring-type technology, applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve the problems of easy wear and leakage, and the friction-fit end face is difficult to meet the requirements of high-pressure use, and achieves low power consumption, Good dynamic pressure effect and countercurrent pumping effect, good sealing reliability

Active Publication Date: 2009-07-29
DANDONG COLOSSUS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The spring type mechanical seal device is suitable for general occasions, that is, for the sealing of rotating shafts with low pressure. The structural setting is difficult to meet the requirements of high pressure use, and it is prone to wear and leakage

Method used

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  • High pressure resistant spring type mechanical sealing device
  • High pressure resistant spring type mechanical sealing device

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Embodiment Construction

[0023] The present invention includes spring box 1, spring 2, push ring 3, dynamic friction ring 4, static friction ring 5, dynamic friction ring 4 is a compensation ring, spring box 1, push ring 3 are installed on the rotating shaft 6 or the rotating shaft sleeve, the spring box 1 is fixedly connected with the rotating shaft 6 or the rotating sleeve through the fastening screw 11, and an anti-rotation pin 12 is provided between the spring box 1 and the push ring 3, and the spring box 1 and the push ring 3 are connected by sliding fit through the circumferentially distributed pins 13, A thrust spring 2 is set on the pin 13 to push the push ring 3 to make compensation, the compensation ring is the dynamic friction ring 4 installed in the push ring 3, a sliding sealing ring is arranged between the dynamic friction ring 4 and the rotating shaft 6 or the rotating shaft sleeve, and the static friction ring 5 Cooperate with the gland 9 and be provided with an auxiliary sealing ring, ...

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Abstract

The invention relates to a high pressure resistant spring type mechanical sealing device which comprises a spring case (1), a spring (2), a thrust ring (3), a kinetic friction ring (4) and a static friction ring (5), wherein, the kinetic friction ring (4) is a compensation ring. The device is characterized in that a slip sealing ring (7) is formed by a tetrafluoroethylene sleeve with a U-shaped cross section and an O-shaped rubber ring embedded inside the tetrafluoroethylene sleeve; the end surface of the kinetic friction ring is distributed with two arch kinetic pressure groove groups that are an open type groove (A) and a closed type groove (B), the static friction ring (5) is installed in a way of being matched with the inner circle of a limiting slot platform on a gland bush (9) or a stationary seat (8), and an O-shaped auxiliary sealing ring is arranged on the vertical end surface of the limiting slot platform. The device has simple structure, simple and convenient processing, good stability and reliability of end surface sealing and auxiliary sealing, and high pressure resistance, can adapt to higher working pressure, works normally under the working condition of 18MP, and ensures leak tightness, little abrasion of the friction end surface and long service life.

Description

technical field [0001] The invention relates to a shaft sealing device, namely a mechanical sealing device, especially a spring type mechanical sealing device. Background technique [0002] The spring type mechanical seal device includes a spring box, a spring, a push ring, a dynamic friction ring, and a static friction ring. Compensation ring; when the dynamic friction ring is a compensation ring, the spring box and the push ring are installed on the rotating shaft or the rotating shaft sleeve, the dynamic friction ring is installed in the pushing ring, and an O-shaped sliding seal is arranged between the dynamic friction ring and the rotating shaft or the rotating shaft sleeve The static friction ring is installed on the gland, and an O-shaped auxiliary sealing ring is provided between the static friction ring and the inner circle of the gland, or the static friction ring is installed on the static ring seat, and the static ring seat and the gland are fixedly installed and...

Claims

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Application Information

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IPC IPC(8): F16J15/16
Inventor 王华南刘斌王慧
Owner DANDONG COLOSSUS GROUP
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