High-power asynchronous motor rotor capable of adjusting magnitude of interference of retaining ring

Abstract

The invention discloses a high-power asynchronous motor rotor capable of adjusting the magnitude of the interference of a retaining ring. The high-power asynchronous motor rotor comprises a rotor shell, a stator coil and a rotating rod; a shoulder is arranged under the rotor shell; cooling fins are connected to the outer side of the rotor shell; the stator coil is installed above the cooling fins,and the outer side of the stator coil is provided with an annular patch; the outer side of the annular patch is nested with a stator iron core; a balance plate is arranged right above the annular patch; the upper part of the balance plate is in threaded connection with a positioning nut; the outer side of the balance plate is connected with a rotating shaft in a penetrating manner; the rotating rod is connected with the upper part of the rotating shaft; the backs of the cooling fins are connected with heat conducting sheets; and cooling channels are formed in the backs of the heat conductingsheets. According to the high-power asynchronous motor rotor capable of adjusting the magnitude of the interference of the retaining ring, a bevel gear and a lead screw are arranged, the lead screw isdriven by the bevel gear to rotate; a protection ring piece is driven by the lead screw to move horizontally; and the distance between a stator and the rotor is adjusted according to use requirements.

Description

technical field [0001] The invention relates to the technical field of motor rotors, in particular to a high-power asynchronous motor rotor with adjustable guard ring interference. Background technique [0002] During the operation of the rotor, the rotor rotates inside the stator cavity, and there is an air gap at a certain distance between the stator and the rotor. In order to ensure that the rotor can rotate freely in the stator cavity, the size of the air gap has a great influence on the performance of the asynchronous motor, The operation reliability has a great influence, so in the process of use, it is necessary to reasonably control the distance between the stator and the rotor, so as to ensure the stability of the motor operation. [0003] The current asynchronous motor rotor has a fixed structure, and it is difficult to adjust the interference of the guard ring according to the use requirements. If the gap is too large, the reluctance will increase, the excitation ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-power asynchronous motor rotor with adjustable retaining ring interference, in order to solve the above-mentioned background technology, it is proposed that the current asynchronous motor rotor has a fixed structure, and it is difficult to adjust the retaining ring interference according to the use requirements. At present, the heat dissipation parts of the rotor are fixed structures, and it is difficult to replace and disassemble the heat dissipation parts in the current market.

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