Clamp for assembling and expanding conducting bar of motor rotor

Abstract

The invention relates to a clamp for assembling and expanding a conducting bar of a motor rotor, especially to a clamp for assembling and expanding the conducting bar of the copper bar rotor of a motor, and aims at solving the problems that the length of the rotor bar stretching out of two ends of a rotor core is determined through marking lines when a present electric machine copper rotor bar is assembled and expanded, operation is complex, the rotor bar cannot be accurately positioned, lengths, stretching out of two ends of a rotor core, of the rotor bar are different, two ends of the rotor bar are not fixed when the rotor bar is expanded, and the rotor bar is easy to slip off a rotor core groove when the expanding force is over large or the direction is inclined. A circular-ring-shaped non-driving end pressure plate is connected to a driving end pressure plate through four screws, the inner circle of the non-driving end pressure plate is provided with a circular-ring-shaped stage, and four bolts are uniformly connected to the periphery of the ring stage. By adopting the clamp, the labor intensity is reduced, positioning precision of the rotor bar and the expanding effect are improved, the size is small, the weight is low, the floor space is small, and the clamp is suitable for assembling and expanding a batch of copper rotor bars at the same time.

Description

technical field [0001] The invention relates to special mechanical equipment in the motor manufacturing industry, in particular to a copper bar rotor guide bar assembly and expansion clamp for traction motors of subway vehicles. Background technique [0002] At present, there are the following disadvantages in the process of assembling and tightening the copper bar rotor guide bar of the motor known or being used by the motor factory: ① Mark the line to determine the length of the guide bar protruding from both ends of the rotor core. Observe the insertion position of the guide bar. The operation is cumbersome, the positioning of the guide bar is not accurate, and the lengths of the two ends of the protruding iron core are different; The iron core slides out of the groove, and the two ends of the guide bar need to be tightened by hand when expanding. The operation is cumbersome and unsafe, and the guide bar does not expand tightly. Contents of the invention [0003] The o...

AI Technical Summary

Problems solved by technology

[0002] At present, there are the following disadvantages in the process of assembling and tightening the copper bar rotor guide bar of the motor known or being used by the motor factory: ① Mark the line to determine the length of the guide bar protruding from both ends of the rotor core. Observe the insertion position of the guide bar. The operation is cumbersome, the positioning of the guide bar is not accurate, and the lengths of the two ends of the protruding iron core are different; The iron core slides out of the groove, and the two ends of the guide bar need to be tightened by hand when it is inflated. The operation is cumbersome and unsafe, and the guide bar does not expand tightly.

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