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Rail vehicle magnetic rail eddy current retarder

A rail vehicle and retarder technology, which is applied in the field of retarders for auxiliary braking of trains, can solve problems such as inability to provide braking torque, achieve the effects of reducing manufacturing and operating costs, adjusting dynamic torque, and improving work performance

Inactive Publication Date: 2011-12-21
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, it also has the following disadvantages: since the generation of magnetic field strength cannot be controlled by changing the current magnitude and the number of magnetic pole groups like an electromagnet, it cannot provide different braking torques according to the actual needs of rail vehicles.

Method used

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  • Rail vehicle magnetic rail eddy current retarder
  • Rail vehicle magnetic rail eddy current retarder
  • Rail vehicle magnetic rail eddy current retarder

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Experimental program
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Embodiment Construction

[0014] Such as figure 1 , 2 , the retarder is connected together by two movable grooves 26 and the cylinder 24 in the middle, the square permanent magnet 31, the magnetic isolation material 33 and the magnetic conduction material 34 are connected together and placed side by side, and one end of the bracket 32 ​​is up and down The clamping method is fixed and placed in the movable groove 26. The other end of the bracket 32 ​​is connected to the piston 35 through a cylindrical connecting rod, and the piston 35 is symmetrically placed at both ends of the cylinder 24. 35 can move horizontally and linearly in the cylinder 24, thereby driving the permanent magnet 31, the magnetic isolation material 33 and the magnetic permeation material 34 to move back and forth linearly in the horizontal direction. The bracket 32 ​​is made of non-magnetic material, and the permanent magnet 31 is made of rare earth material NdFeB.

[0015] Stator iron cores 23 are embedded on both sides of the mo...

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PUM

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Abstract

The invention discloses a magnetic rail eddy current retarder for a rail vehicle, which comprises a permanent magnet, an iron core and a magnetic yoke, the iron core has windings, the magnetic yoke is close to the rail, the permanent magnet, the magnetic isolation material and the magnetic conduction material are connected and arranged side by side In one end of the bracket, the other end of the bracket is connected to the piston, and the piston is symmetrically placed at both ends of the cylinder. Middle; The present invention combines the advantages of both the eddy current retarder and the permanent magnet eddy current retarder, and realizes the eddy current retarder and the permanent magnet retarder by moving the support with permanent magnets, magnetic isolation materials and magnetic conduction materials The closed magnetic circuit of the retarder, and the switching between the two working states of the eddy current retarder and the permanent magnet eddy current retarder on the rail vehicle, the retarding braking torque can be adjusted, and the manufacturing and operating costs can be reduced. , high-speed trains, maglev trains and other vehicles.

Description

technical field [0001] The invention relates to a retarder for train auxiliary braking, in particular to a permanent magnet eddy current retarder and an electric eddy current retarder. Background technique [0002] At present, rail transit such as intercity high-speed trains, subways, and light rails is increasingly showing an irreplaceable role. As the speed of trains increases, higher requirements are placed on the safety of rail vehicles. In order to solve the insufficient safety of rail vehicle friction braking, an auxiliary braking device is required. Among them, the permanent magnet rail brake has the following advantages: the permanent magnet itself does not generate heat, the maintenance is simple, the consumption is low, the high-speed braking performance is good, and it is easy to realize light weight and miniaturization. At the same time, it also has the following disadvantages: since the generation of magnetic field strength cannot be controlled by changing the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K49/04
Inventor 何仁费德成
Owner JIANGSU UNIV
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