Heavy-load thrust bearing with multiple cooling circulation functions

Abstract

The invention discloses a heavy-load thrust bearing with multiple cooling circulation functions. The heavy-load thrust bearing comprises a bearing body, a thrust ring, a thrust block group, an oil injection mechanism and a balance block group, an oil inlet ring groove is designed outside the bearing body, an inner cavity of the bearing body is matched with the thrust ring and the tile group, and an annular cooling oil groove is designed at the axial matching part of the inner cavity of the bearing body and the tile and is used for collecting cold oil on the outer circle of the thrust block so as to cool the tile body; the oil injection structure and the thrust ring are positioned through a profiled groove, an oil injection nozzle with an inclination angle in the rotating direction is arranged in the middle of the top of the oil injection mechanism, the inclination angle ranges from 45 degrees to 80 degrees, a hot oil drainage dam groove is formed in the position, on the oil outlet side of the tile, of the top of the oil injection mechanism, and multiple cooling oil channels and an optimized oil supply system are provided. The thrust bearing can effectively solve the problem of overtemperature of the existing thrust bearing under the conditions of high speed and large load, and the reliability and the service life of the bearing under the high working condition are improved and prolonged.

Description

technical field [0001] The invention belongs to the field of machinery and relates to a thrust bearing, in particular to a heavy-duty thrust bearing with multiple cooling cycle functions. Background technique [0002] Thrust bearing is a key component to ensure the axial position of the rotor and bear the axial thrust of the rotor. It is widely used in various rotating machinery such as blowers, compressors, steam turbines, and gas turbines. With the development of rotating machinery towards high-speed and high-pressure ratio conditions, the over-temperature problem of thrust bearings has become prominent. Due to material and space constraints, the stable operation of thrust bearings under extreme conditions has become one of the main factors limiting the development of the unit. At present, the world's leading bearing companies have carried out a series of innovations in bearing surface materials, body materials, oil inlet methods, etc., and developed various new types of b...

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Problems solved by technology

With the development of rotating machinery towards high-speed and high-pressure ratio working conditions, the problem of overheating in thrust bearings has become prominent. Due to material and space constraints, the stable operation of thrust bearings in extreme working conditions has become one of the main factors limiting the development of units.

At present, the world's leading bearing companies have carried out a series of innovations in bearing tile surface materials, tile body materials, and oil inlet methods, and developed various new types of bearings, such as advanced LEG bearings, but only focus on ensuring the thermal conductivity of materials , high temperature resistance and sufficient oil flow, and in terms of heat dissipation of the bearing, only the improvement of the material limits the improvement of the bearing capacity; on the other hand, the heat dissipation design of the bearing increases the complexity of the bearing and reduces the bearing capacity. It affects the strength of the bearing body and affects the reliability of the entire bearing

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