Motor end cover counterweight device and motor stator and rotor vertical assembling method

Abstract

The motor end cover counterweight device is characterized in that the motor end cover counterweight device comprises a lap plate positioned on an end cover and a counterweight assembly connected with the lap plate, and the counterweight position of the counterweight assembly and the connecting position of the counterweight assembly on the lap plate can be adjusted. By adjusting the connection position of the counterweight assembly on the lap joint plate and the counterweight position of the counterweight assembly, the rotor assembly composed of the rotor and the end cover achieves moment balance and stable center of gravity when being hoisted, and is not inclined in the vertical direction, so that the precision of vertical assembly of the stator and the rotor of the motor is ensured; safety, reliability and efficiency of motor stator and rotor combination are improved, and labor intensity of motor stator and rotor combination is reduced. The invention also provides a motor stator and rotor vertical assembling method.

Description

technical field [0001] The invention relates to a counterweight device for a motor end cover and a vertical assembly method for a motor stator and a rotor, and belongs to the technical field of motor stator and rotor assembly. Background technique [0002] Some types of motors adopt a slender and compact structural design. During the vertical assembly process of the motor stator and rotor, because of the special overall structure of the stator and end cover, it currently brings great trouble to the motor assembly process. , there are mainly the following disadvantages: 1. When the motor is assembled vertically, the D-end end cover is assembled on the rotor first, and then due to the special structure and asymmetric shape of the end cover, it is easy to cause the center of gravity of the end cover and the rotor to be offset, and it cannot be lifted smoothly. , the operability of personnel is poor. In addition to the lifting operation, it is necessary to arrange personnel to l...

AI Technical Summary

Problems solved by technology

[0002] Some types of motors adopt a slender and compact structural design. During the vertical assembly process of the motor stator and rotor, because of the special overall structure of the stator and end cover, it currently brings great trouble to the motor assembly process. , there are mainly the following disadvantages: 1. When the motor is assembled vertically, the D-end end cover is assembled on the rotor first, and then due to the special structure and asymmetric shape of the end cover, it is easy to cause the center of gravity of the end cover and the rotor to be offset, and it cannot be lifted smoothly. , the operability of personnel is poor. In addition to the lifting operation, it is necessary to arrange personnel to lift the heavy side of the end cover with both hands alone; The accuracy of the assembly is time-consuming and laborious during the assembly process, and the quality is difficult to guarantee; 3. During the assembly process of the stator and the rotor, the center of gravity is slightly shifted by 2-3mm, which will cause damage to the laminated seal ring and the N-end bearing

[0003] Faced with the combined assembly of the stator and rotor of this type of motor, due to the special overall structure of the end cover, it is easy to cause the center of gravity of the end cover and the rotor to be offset, making it difficult to guarantee the accuracy of the assembly. The assembly process is time-consuming, laborious, and easy to damage the assembly. , the combined quality is difficult to guarantee

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