Superconduction eddy-current brake device of track multiple unit

An eddy current braking and superconducting technology, applied in electric vehicles, electric braking systems, vehicle components, etc., can solve the problems of large size and difficult realization of eddy current braking devices, and achieve light weight, low power loss and small size. Effect

Inactive Publication Date: 2009-07-01
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the magnetic field strength will make the volume of the eddy current braking device larger and larger, which is difficult to realize on the motor vehicle.

Method used

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  • Superconduction eddy-current brake device of track multiple unit
  • Superconduction eddy-current brake device of track multiple unit

Examples

Experimental program
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Embodiment Construction

[0012] refer to figure 1 , taking the rail car as an example, in the figure 1 is the railway rail, 2 is the wheel of the rail car, 3 is the superconducting electromagnet coil, 4 is the core column of the superconducting electromagnet, 5 is the bogie of the rail car, and 6 is the superconducting electromagnet The air gap between the core column and the railway rail.

[0013] The superconducting eddy current braking device of the railway vehicle of the present invention includes a braking controller and an eddy current braking device. The braking controller is provided with an excitation power supply 8 , and the eddy current braking device is installed between the bogie 5 and the wheel 2 of the railway vehicle carriage. The electromagnet coil adopts superconducting electromagnet coil 3, the electromagnet core column adopts superconducting electromagnet core column 4, the superconducting electromagnet coil 3 is connected with the excitation power source 8, and the superconducting...

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PUM

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Abstract

The invention provides a superconducting eddy-current braking device for a rail motor car, which comprises a braking controller with an excitation power supply and an eddy-current braking device, wherein an iron core column of an electromagnet of the eddy-current braking device adopts an iron core column of a superconducting electromagnet, a coil of the superconducting electromagnet is connected with the excitation power supply, the iron core column of the superconducting electromagnet is arranged on a steering frame of a carriage, and an air gap is reserved between the bottom plane of the iron core column of the superconducting electromagnet and the upper surfaces of steel rails of a rail. The superconducting eddy-current braking device for the rail motor car has the advantages that the eddy-current braking is non-contact electromagnetic braking, a superconducting electromagnetic system is adopted, the electric resistance of the coil approaches to zero, and the large current can be conducted into the coil, so the produced magnetic-field intensity is also large, and the produced electromagnetic force of eddy-current braking is also large. Compared with the prior art, the device has the advantages of small volume, light weight, and small consumption of electric energy, greatly improves the reliability and the service life, and can be widely applied to eddy-current braking technology of rail motor cars (such as trains, subways, city trains, tram cars and so on).

Description

technical field [0001] The invention relates to a brake device, in particular to a superconducting eddy current brake device for a rail vehicle. Background technique [0002] Most of the traditional rail train brakes use train foundation braking, resistance braking and regenerative braking. These braking methods ultimately rely on the adhesion between the wheel rim and the rail, that is, friction to achieve braking. Friction braking inevitably involves sliding between the wheel rails and other braking components, causing heat and wear. This inevitably requires frequent inspection and replacement of worn brake parts, which increases the input of manpower and material resources, thereby increasing the operating cost. These defects are then more prominent for high-speed rail motor vehicles (such as: trains, subways, urban railways, trams, etc.). [0003] After the 1980s, Germany, France, and Japan successively began to use the eddy current generated by electromagnets on the ...

Claims

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Application Information

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IPC IPC(8): B60L7/28
Inventor 刘平竹
Owner BEIJING JIAOTONG UNIV
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