Screw compressor shaft seal with automatic compensation function

A screw compressor and automatic compensation technology, which is applied in the direction of machines/engines, sealing devices of piston pumps, mechanical equipment, etc., can solve the increase in the use cost and maintenance cost of screw compressors, and the wear of the contact surface between the shaft sleeve and the lip seal Increase the size of the lip seal and reduce the service life of the lip seal to solve the defects of the lip seal, reduce the cost of use and maintenance, and prolong the service life

Inactive Publication Date: 2015-07-01
SUZHOU TORIN DRIVE EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual use process, due to the vibration, friction and other factors of the screw compressor system, the contact surface between the shaft sleeve and the lip seal is often worn, which leads to a reduction in the service life of the lip seal. oil leakage
Therefore, the shaft seal structure requires regular replacement of the lip seal to ensure a good sealing effect, resulting in increased use and maintenance costs of the screw compressor

Method used

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  • Screw compressor shaft seal with automatic compensation function
  • Screw compressor shaft seal with automatic compensation function

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Embodiment Construction

[0014] The applicant will describe in detail the specific implementation of the present invention below in conjunction with the accompanying drawings, but the applicant's description of the embodiments is not a limitation to the technical solution, and any changes made in form but not in substance according to the concept of the present invention should be regarded as the present invention. scope of protection.

[0015] see figure 1 and figure 2 , the present invention relates to a screw compressor shaft seal with automatic compensation function, said screw compressor includes an extended shaft 1 and an end cover 7 arranged at the end of the compressor. The shaft seal includes a shaft sleeve 2 sleeved on the extended shaft 1 and a lip seal 5 embedded in the center hole 71 in the axial middle of the end cover 7 . The outer wall of the shaft sleeve 2 gradually narrows toward the extension direction of the shaft 1 to form a conical surface 21. The lip seal 5 has a sealing ...

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Abstract

The invention discloses a screw compressor shaft seal with an automatic compensation function, and belongs to the technical field of accessories of screw compressors. A screw compressor comprises a projecting shaft and an end cover arranged on the end part of the compressor; the shaft seal comprises a shaft sleeve sleeving the projecting shaft and a lip seal embedded in a center hole in the axial middle of the end cover, and a sealing lip of the lip seal is matched with the outer wall of the shaft sleeve; The screw compressor shaft seal is characterized in that a conic surface is formed in the outer wall of the shaft sleeve, the lip seal is conical, and the conical sealing lip is adhered to the conical surface of the shaft sleeve. The screw compressor shaft seal is capable of prolonging the service life of the lip packing, improving the sealing effect of the lip seal, and lowering the use cost and maintenance cost of the screw compressor.

Description

technical field [0001] The invention belongs to the technical field of accessories of screw compressors, and in particular relates to a screw compressor shaft seal with automatic compensation function. Background technique [0002] Screw compressors have the characteristics of low noise and vibration, high reliability, convenient operation and maintenance, good power balance, and strong adaptability, and have gradually replaced piston compressors and other types of compressors in many fields. The structure of the screw compressor mainly includes a screw, a cylinder, an end cover and a screw drive shaft. The screw is arranged inside the cylinder in a horizontal state and placed on the bearings at both ends of the cylinder. The screw drive shaft passes through the center hole of the end cover from the cylinder. protrudes beyond the end cap. In order to prevent the process gas in the cylinder from leaking to the shaft extension or to prevent the lubricating oil of the bearing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C27/00
Inventor 曹建文李星星武晓昆陈文卿周达
Owner SUZHOU TORIN DRIVE EQUIP
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