Variable air gap disc-shaped linear induction traction motor high-speed mutual feedback table for track traffic

Abstract

The invention discloses a variable air gap disc-shaped linear induction traction motor high-speed mutual feedback table for track traffic. The device comprises a disc-shaped secondary device, a linear induction motor primary device, a rotary induction motor, a No.1 converter, a No.2 converter, an umbrella-shaped coupler, a primary base, a secondary support table, a rotary coder, a torque meter and a fly wheel. The linear induction motor primary device is fixed on the primary base; the disc-shaped secondary device is rigidly linked with a shaft penetrating through the disc-shaped secondary device; the secondary support table is linked with the shaft by a bearing; the rotary coder is linked with a shaft penetrating through the rotary coder by a bearing; the umbrella-shaped coupler, the fly wheel, the torque meter and the rotary induction motor are serially connected together by a connection shaft in sequence. The No.2 converter is connected with the rotary induction motor; the No.2 converter is connected with the linear induction motor primary device. The variable air gap disc-shaped linear induction traction motor high-speed mutual feedback table for the track traffic has the characteristics of air gap adjusting function, energy saving, comprehensive test on electromagnetic force and work condition, capability of test on high-speed work condition, small size, less space occupation, suitability for indoor use and the like.

Description

Technical field [0001] The invention belongs to the field of electric traction drives, and particularly relates to a high-speed mutual-feeding platform of a variable air gap disc-shaped linear induction traction motor for rail transit. technical background [0002] At present, linear motor urban rail trains, medium and low-speed magnetic levitation trains, etc. all use high-power linear induction traction motors, and the air gap of the motor changes during operation. The air gap of the existing ordinary rotating electric machine generally does not change, and only the torque value is tested. Therefore, when testing the torque of the ordinary rotating electric machine, it is only necessary to test under the condition of maintaining the air gap unchanged. The topological structure of linear induction traction motor is different from the electromagnetic force of ordinary rotating motor in three-dimensional space. The performance index test of force characteristics such as thrust and...

AI Technical Summary

Problems solved by technology

Furthermore, the speed of the linear induction traction motor is relatively high, and if it is used in the form of a vehicle and a track, it requires a large space and investment

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