High-low-temperature box penetrating shaft gas sealing device and application

A high and low temperature box, gas sealing technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of gasket and liquid oil seal friction, easy leakage, etc., to achieve no friction, good sealing effect, light weight Effect

Active Publication Date: 2015-09-16
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiencies of the prior art, the present invention provides a high and low temperature box penetrating box shaft gas sealing device, which can not only solve the problems of friction and easy leakage between th

Method used

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  • High-low-temperature box penetrating shaft gas sealing device and application
  • High-low-temperature box penetrating shaft gas sealing device and application
  • High-low-temperature box penetrating shaft gas sealing device and application

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Embodiment Construction

[0024] Below in conjunction with specific embodiment and attached Figure 1-3 The present invention will be further described, but the present invention is not limited by the examples.

[0025] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "top", "bottom", "inner", "outer" and "vertical" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the invention.

[0026] In the description of the present invention, it should be noted that u...

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Abstract

The invention discloses a high-low-temperature box penetrating shaft gas sealing device and application, and particularly relates to a sealing device suitable for a space environment simulation box penetrating shaft of spaceflight ground simulation equipment. The gas sealing device comprises a transmission shaft, a gas sealing sleeve, a gasket, a gas sealing flange, a high-low-temperature box and gas supply equipment. The gas sealing sleeve, the gasket and the gas sealing flange are installed on the transmission shaft (1) in a sleeving mode. The transmission shaft penetrates through the high-low-temperature box and is connected with the equipment in the box, and the gas supply equipment is connected with an input hole of the gas sealing sleeve through a gas conveying pipe. The gas sealing device has the advantages of being simple in structure, and ensuring the dew point temperature in the high-low-temperature box and the cleanness, friction is avoided, and pollution to the environment box is avoided; meanwhile, the gas sealing device can be used for sealing a rotating shaft and an axial moving shaft, the rotating speed and the axial moving speed of the transmission shaft are not limited, and the gas sealing device can seal the transmission shaft of axial motion, and is suitable for gas sealing of various speed processes from the low speed to the high speed.

Description

technical field [0001] The invention relates to a gas sealing device for a shaft passing through a high and low temperature box and its application, in particular to a sealing device suitable for a shaft passing through a box passing through a space environment simulation box of aerospace ground simulation equipment. Background technique [0002] The ground simulation device of aerospace equipment needs to simulate the environment in space as much as possible - high and low temperature environment chamber, especially the humidity in space, frictionless transmission parts in microgravity, high cleanliness environment, etc. If the traditional shaft sealing ring is used or sealed by liquid oil, on the one hand, the dew point temperature inside the high and low temperature box cannot be guaranteed; on the other hand, once worn or leaked, the cleanliness inside the high and low temperature environment box will be destroyed; on the other hand, , the test results are distorted by t...

Claims

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Application Information

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IPC IPC(8): F16J15/40
CPCF16J15/40
Inventor 李隆球刘青康周强康鹏张广玉
Owner HARBIN INST OF TECH
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