Bearing seal structure of rotating machinery
A bearing sealing and mechanical technology, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of oil leakage of rotating mechanical shaft seals, failure of skeleton oil seals, etc., and achieve the effect of eliminating leakage and simple structure
Active Publication Date: 2019-04-05
大唐桂冠合山发电有限公司
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Problems solved by technology
The original bearing sealing structure is mainly sealed by the oil retaining plate and the skeleton oil seal. During the operation of the rotating machine, a small amount of oil droplets will drip along the inner wall of the bearing box or flow into the gap between the main shaft and the sealing end cover, which is blocked. The frame oil seal is isolated from the outside world, but after long-term operation makes the frame oil seal wear and tear, the frame oil seal becomes invalid, resulting in oil leakage from the rotating mechanical shaft seal
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[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0025] It should be understood that terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.
[0026] Such as figure 1 and image 3 As shown, the present invention provides a bearing sealing structure of a rotating machine, which includes:
[0027] Bearing 100, which is arranged on the main shaft 200 of the rotating machine;
[0028] Sealing end cap 300, which is installed on the end of bearing 100 to fix and seal said bearing 100;
[0029] A moving ring 400, which is arranged on the main shaft 200 between the bearing 100 and the sealing end cover 300, tightly fits with the main shaft 200, and the axial outer side of the moving ring 400 extends outward along the axial dir...
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The invention discloses a bearing seal structure of rotating machinery. The bearing seal structure comprises a bearing, a sealing end cover, a moving ring and a stationary ring. The bearing is arranged on a main shaft of the rotating machinery. The sealing end cover is mounted at the end of the bearing, and is used for fixing and sealing the bearing. The moving ring is arranged on the main shaft between the bearing and the sealing end cover, and is in tight fit with the main shaft. The axial outer side of the moving ring extends outwardly along the axial direction to form a folded corner. The stationary ring sleeves the main shaft, and is fixedly connected to the sealing end cover. A ring-shaped groove is formed in the outer peripheral surface of the stationary ring. An axial gap is limited between the axial inner side wall of the ring-shaped groove and the moving ring. The folded corner of the moving ring extends axially to shield the axial gap and at least part of an opening of the ring-shaped groove. The bearing seal structure has the advantages of simple structure and capability of reducing or even eliminating bearing seal oil leakage of the rotating machinery.
Description
technical field [0001] The invention relates to a sealing structure. More specifically, the present invention relates to a bearing sealing structure for a rotating machine. Background technique [0002] The role of the bearing seal is to prevent the lubricating oil in the bearing from leaking out and to prevent harmful substances such as dust, moisture, and foreign matter from invading the inside of the bearing. The original bearing sealing structure is mainly sealed by the oil retaining plate and the skeleton oil seal. During the operation of the rotating machine, a small amount of oil droplets will drip along the inner wall of the bearing box or flow into the gap between the main shaft and the sealing end cover, which is blocked. The frame oil seal is isolated from the outside world, but after long-term operation makes the frame oil seal wear and tear, the frame oil seal becomes invalid, resulting in oil leakage from the rotating mechanical shaft seal. Contents of the i...
Claims
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IPC IPC(8): F16J15/34F16J15/16
CPCF16J15/16F16J15/34
Inventor 覃旭明覃小光王永步梁东李国晖
Owner 大唐桂冠合山发电有限公司