Rotor Slot Liner Bending Tool for Wet Winding Motors

Abstract

The present invention designs a rotor slot lining bending tool for wet winding motors. Put the rotor slot lining on the lower mold of the bending tool, fix the slot lining on the lower mold groove by adjusting the positioning plate on the lower mold, and place the rotor Put the copper bar on the rotor slot liner and coincide with the positioning groove on the lower die at the same time, install the upper die handle on the upper die with screws, press the copper bar and the slot liner into the lower die slot at the same time, so that the outer surface of the copper bar One side is fully attached to the slot liner, the upper mold is removed, and the outer slot liner is attached to the copper strip. The shape of the slot liner of the present invention has no wrinkles and deformations, and the copper strips covered with the slot liner can be smoothly loaded into the rotor core slots. The slot shape of the lower mold of the tool is designed according to the shape of the copper strips. After assembly, the slot liner and copper strips can Seamless fit, and finally achieve the effect of protecting the copper strip.

Description

Technical field: [0001] The present invention relates to a wet winding motor rotor tank liner and curved tool. Background technique: [0002] The wet winding motor is a static seal connection in the pump portion, and the motor is co-affected by the same water pressure in the working state. The motor is filled with water, and the rotor with copper strips has long been immersed in the water. In order to prevent the copper strip from causing serious corrosion in the water in the water, The outer surface of the copper strip is painted and an outsourced lining, the rotor core is a pear slot, and the length is generally 700 ~ 1500 mm. [0003] The wet winding group motor rotor slot is 0.20 mm pharmaceous strip, there is a certain hardness, and the initial tank is curved, and the copper strip is placed directly on the groove liner, using a simple insulating plate and the copper hammer to be copper into a sample. Bending, since there is no positioning, the copper strips are moved during ...

AI Technical Summary

Problems solved by technology

[0003] The slot lining of wet winding motor rotor is 0.20mm rust-free steel belt, which has a certain hardness. At first, the slot lining is bent by placing the copper strip directly on the slot lining, and using a simple insulating plate and a copper hammer to carry out the copper strip as a sample. Bending, because there is no positioning, the copper strip moves during the bending process, the slot lining cannot be fitted, the surface of the slot lining is knocked uneven, and even the paint film on the copper strip surface falls off. In severe cases, the copper strip is deformed and cannot be smoothly installed. Put the copper bar covered with the slot liner into the rotor core slot. Even if it is forced into the rotor core slot, the slot liner is easy to wrinkle or be damaged, and the copper bar will lose its protective effect.

Therefore, the traditional way of wrapping the slot liner and copper strip is not only time-consuming and laborious, but also increases a lot of cost if the slot liner is damaged during assembly.

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