High speed shaft oil gas sealing structure for vertical type high speed case
A sealing structure and high-speed shaft technology, which is applied to transmission parts, belts/chains/gears, mechanical equipment, etc., can solve problems such as unsatisfactory use effect, inconvenient replacement, oil leakage of high-speed shafts, etc., and achieve low cost and good structure Simple and compact, high sealing reliability
Inactive Publication Date: 2018-07-27
HANGZHOU ADVANCE GEARBOX GRP
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Problems solved by technology
Such as various contact seals, wear will cause failure, and it is inconvenient to replace after wear; the solution to wear is non-contact seals, but the current non-contact seal oil seal structure has the defect of unsatisfactory use effect. Oil seal wear will cause the high-speed shaft to start to leak oil, and the series of losses caused by this situation will not be estimated
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[0020] Example: Figure 1-3 As shown, a high-speed shaft oil-gas seal structure of a vertical high-speed box mainly includes a sliding bearing 1, a box cover 2, a high-speed shaft 3, a box body 4, an oil seal 5, bolts 6, vent holes 7, an air seal 8, and a return Oil hole 9, pin 10 form. The sliding bearing 1 is set on the high-speed shaft 3, the oil seal 3 is installed on the casing 4 through the bolt 6, that is, it is located at one end of the sliding bearing 1, the casing cover 2 and the casing 4 are connected by bolts, and the casing 4 is provided with a vent hole 7, which is convenient for gas to be removed from the outside of the box. The lower end of the oil seal 5 is provided with an oil return chamber with a waist-shaped groove to communicate with the axial oil return hole 9. The gas seal 8 is installed on the box through bolts. .
[0021] The high-speed shaft 3 is provided with a boss, which plays the role of throwing oil, so that most of the oil coming from the sli...
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The invention relates to a high speed shaft oil gas sealing structure for a vertical type high speed case. The high speed shaft oil gas sealing structure mainly comprises a sliding bearing, a case cover, a high speed shaft, a case body, an oil seal, a vent hole, a gas seal and an oil return hole; the sliding bearing is installed on the high speed shaft in a sleeving manner, the oil seal is installed on the case body through a bolt, the case body is provided with the vent hole facilitating exhausting of gas to the exterior of the case body, an oil return cavity with a kidney-shaped groove is formed in the lower end of the oil seal to communicate with the axial oil return hole, and the gas seal is installed on the position, on the outer side of the oil seal, on the case body through a bolt;the oil seal is an oppositely-opened part, is divided according to the center line after whole machining and is connected into a whole through a bolt and a pin, the front end of the oil seal is provided with three claw type positioning openings in the semicircle, the lower portion is provided a cavity facilitating return of most sliding bearing oil liquid into the case body from the position; andthe high speed shaft is provided with a boss which has the oil throwing effect and enables most oil liquid from the sliding bearing to directly return into the case body.
Description
technical field [0001] The invention relates to a high-speed shaft oil-gas sealing structure of a vertical high-speed box, belonging to the technical field of high-speed shaft sealing of gearboxes. Background technique [0002] At present, due to the fast speed of the high-speed shaft of the vertical high-speed box, the large load, various sealing methods, and large differences in functional structure. For example, various contact seals, wear and tear will cause failure, and it is inconvenient to replace after wear; the solution to wear is non-contact seals, but the current non-contact seal oil seal structure has the defect of unsatisfactory use effect. Oil seal wear will cause the high-speed shaft to start to leak oil, and the series of losses caused by this situation will not be estimated. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a vertical high-speed air compressor with simple ...
Claims
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Login to View More IPC IPC(8): F16H57/029
CPCF16H57/029
Inventor 董龙梅李兴亚张萌王庆良王青松
Owner HANGZHOU ADVANCE GEARBOX GRP