Pillar bearing assembly structure

Abstract

The invention provides a pillar bearing assembly structure for motors. The brand new pillar bearing assembly structure is designed by the aid of the principle of a sliding bearing, can overcome the assembly shortcoming of uneven punching of a motor stator core center and a motor rotor core center, and can also increase the carrying capacity of bearings. The pillar bearing assembly structure is characterized in that two ends of each motor are respectively provided with a pillar bearing, certain travelling gaps d are axially formed between each bearing inner sleeve and a corresponding bearing inner cover and between each bearing inner sleeve and a corresponding bearing outer cover respectively, so that assembled axial deviation of a motor stator core is found, the axial position of the stator core is adjusted, the motor stator core center and the motor rotor core center are evenly punched, heating of the bearings caused by uneven punching of the stator core center and the rotor core center is avoided, and temperature sensors are additionally mounted on the bearing outer covers. The pillar bearing assembly structure has the advantages that the carrying capacity of the bearings of a double-bearing motor is increased, motor cost is reduced, and burnout failure of the bearings is prevented as the temperature sensors are additionally mounted.

Description

technical field [0001] The invention relates to a motor bearing assembly structure, in particular to a column bearing assembly structure with large bearing capacity, which can be used at both ends of the motor and can prevent the bearing from burning out, and belongs to the field of mechanical design. Background technique [0002] The bearing assembly structure of large and medium-sized high-voltage motors is currently mainly divided into double-bearing structure and three-bearing structure. The double-bearing structure means that a ball bearing and a column bearing are used at both ends of the motor, or ball bearings are used at both ends (two-pole motor); three bearings The structure is that when the load of the bearing is large, the non-shaft extension end of the motor adopts a column bearing, and the shaft extension end adopts a structure of a column bearing plus a ball bearing. [0003] When the motor is assembled, it is inevitable that the centers of the stator and rot...

AI Technical Summary

Problems solved by technology

Due to the low bearing capacity of the ball bearing, the double bearing structure uses the axial positioning function of the ball bearing to solve the problem of axial tension, but it cannot meet the needs of large load; the three-bearing structure solves the problem of axial tension and increases the bearing capacity However, there are problems of increasing the number of bearings used and increasing the cost

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