Mechanical sealing drive device with shaft seal

A technology of mechanical seals and transmissions, which is applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve the problems of poor versatility of mechanical seals, relative slippage between shaft seals and shafts, and influence on transmission reliability. Achieve the effect of simple structure, convenient manufacture and good product versatility

Inactive Publication Date: 2012-12-19
DANDONG COLOSSUS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Industrial pure aluminum has good temperature resistance, but its corrosion resistance is not ideal. Polytetrafluoroethylene has good corrosion resistance, but its high temperature resistance is poor.
Therefore, the versatility of this integrated mechanical seal device is not strong
In addition, in terms of transmission, the existing technology is completely relying on pure aluminum or polytetrafluoroethylene shaft seals to tighten the shaft on the shaft to realize the transmission of force between the shaft and the moving ring shaft sleeve. The shaft seal and the shaft are prone to relative slippage, which affects the reliability of the transmission. sex

Method used

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  • Mechanical sealing drive device with shaft seal
  • Mechanical sealing drive device with shaft seal
  • Mechanical sealing drive device with shaft seal

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Embodiment Construction

[0010] The mechanical seal transmission device with shaft seal of the present invention includes a moving ring shaft sleeve 1, a transmission ring 3, a shaft seal 2, a snap ring 4, a set screw 5, and a snap ring tension bolt 7. The transmission ring 3 is tightened by The screw 5 is fixedly connected with the shaft, the snap ring 4 cooperates with the card groove 11 opened on the moving ring sleeve 1 and is connected with the transmission ring 3 through the tightening bolt 7, and a shaft seal is set between the front end of the moving ring sleeve 1 and the transmission ring 3 2. It is characterized in that a trapezoidal notch groove 32 formed by an axial plane 30 and a radial slope 31 is opened on the inner ring surface of the transmission ring 3, and the outer end of the moving ring sleeve 1 with the inner tapered surface 10 is in contact with the The trapezoidal notch 32 of the transmission ring 3 cooperates, and the trapezoidal notch 32 of the transmission ring 3 cooperates...

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Abstract

The invention relates to a mechanical sealing drive device with a shaft seal. The mechanical sealing drive device with the shaft seal comprises a rotating ring sleeve (1), a drive ring (3), the shaft seal (2), a clamping ring (4), a set screw (5) and a clamping ring tension bolt (7). The mechanical sealing drive device is characterized in that the inner ring surface of the drive ring (3) is provided with a stopping groove (32) matching with the outer end of the rotating ring sleeve (1) to form a compressible sealing cavity, and the shaft seal (2) made of flexible graphite material is arranged in the sealing cavity; and a matching surface of the clamping ring (4) and the rotating ring sleeve (1) is provided with an anti-rotating pin hole (60), and an anti-rotating pin (6) is arranged on the anti-rotating pin hole (60). The flexible graphite is extruded to achieve sealing, sealing effect, corrosion resistance and high temperature resistance are high, and drive reliability is high by matching the clamping ring (4) and the rotating ring sleeve (1) through the anti-rotating pin (6).

Description

technical field [0001] The invention relates to a mechanical seal device, in particular to a seal transmission connection device between a moving ring shaft sleeve and a shaft of the mechanical seal device. Background technique [0002] Under the conditions of high temperature and corrosive medium, the seal between the moving ring sleeve and the shaft of the integrated mechanical seal device, that is, the shaft seal cannot use O-rings and other rubber rings, and the seal between the pump shaft and the moving ring sleeve is usually used The structure of extruding industrial pure aluminum or polytetrafluoroethylene to make the sealing ring between the shaft sleeve and the transmission ring. Industrial pure aluminum has good temperature resistance, but its corrosion resistance is not ideal. Polytetrafluoroethylene has good corrosion resistance, but its high temperature resistance is poor. Therefore, the versatility of this integrated mechanical seal device is not strong. In a...

Claims

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Application Information

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IPC IPC(8): F16J15/30
Inventor 马宇李成龙徐斌李建军栗田福关键滕朋
Owner DANDONG COLOSSUS GROUP
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