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

A linear induction motor and rail transit technology, applied in the field of electric traction drive, can solve the problems of large space and investment, high speed of linear induction traction motor, and achieve the effects of energy saving, small size and low investment.

Active Publication Date: 2014-03-12
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0029] The content of the present invention is further described below in conjunction with the drawings and embodiments.

[0030] Such as figure 1 Shown is a high-speed mutual-feeding platform for variable air gap disc linear induction traction motors for rail transit; the device consists of a primary base 1, a linear induction motor primary 2, a secondary support platform 3, a disc-shaped secondary 4, and an umbrella-shaped coupling Shaft 5, rotary encoder 6, flywheel 7, torque meter 8, rotary induction motor 9, No. 1 converter 10, No. 2 converter 11.

[0031] (1) Primary base 1. The primary base 1 is used to fix the primary 2 of the linear induction motor, and at the same time, a tension and compression sensor is installed at the connection part between the primary 2 of the linear induction motor and the primary base 1. The tension and compression sensors include a thrust sensor 13, a normal force sensor 14, and a lateral force sensor 16, which are used to detect thrust, normal ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34
Inventor 吕刚周杰
Owner BEIJING JIAOTONG UNIV
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