Motor rotor supporting bearing lubrication waste grease discharge structure capable of overcoming assembly errors

Abstract

The invention discloses a motor rotor supporting bearing lubrication waste grease discharge structure capable of overcoming assembly errors, and solves a problem that an annular gap for discharging waste grease is too large or too small due to the assembly errors of a motor in an existing cylindrical roller bearing so that normal work of the bearing is influenced. A bearing outer ring (3) of a motor rotor supporting bearing is fixedly arranged in a motor rotor supporting bearing seat (2), a bearing inner ring (9) of the motor rotor supporting bearing is thermally sleeved on a motor rotating shaft (6), an oil slinger (7) is thermally sleeved on the motor rotating shaft (6) outside the bearing inner ring (9), and a bearing outer cover (5) is arranged on the outer side surface of the motor rotor supporting bearing seat (2); an oil baffle ring (4) is arranged between the bearing outer cover (5) and the bearing outer ring (3); and a radial annular gap (8) is formed between the oil baffle ring and the oil slinger. Normal work of lubricating grease in motor operation is guaranteed, and excessive loss of the lubricating grease in the bearing is avoided.

Description

technical field [0001] The invention relates to a motor rotor supporting bearing, in particular to a structure for discharging lubricating waste grease in the motor rotor supporting bearing which can effectively overcome assembly errors. Background technique [0002] The high-voltage three-phase asynchronous motor is the mainstream model in the field of industrial traction. Due to its high power, cylindrical roller bearings are generally used as the supporting bearing for the motor rotor at the shaft end. The rollers of the bearing are cylindrical, and the inner and outer sides of the bearing are The ring raceway is also cylindrical, and an oil throwing ring is shrunk on the motor shaft outside the cylindrical roller bearing, and an oil retaining ring is arranged on the bearing outer ring outside the oil throwing ring, and the oil throwing ring is axially positioned on the motor shaft. On the rotating shaft, the oil deflecting ring is positioned axially according to the oute...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a motor rotor support bearing lubricating waste grease discharge structure that can overcome assembly errors, and solves the problem of excessive or small annular gaps for waste grease discharge caused by motor assembly errors in existing cylindrical roller bearings Technical problems of bearing normal operation

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