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Shock-absorbing device of eddy-current brake for high-speed magnetic floating vehicle and magnetic suspension vehicle

An eddy current brake and magnetic levitation technology, which is applied in the direction of brakes, vehicle parts, railway braking systems, etc. where the braking element interacts with the track, can solve the problem of the damage of the device that is difficult to observe the internal installation of the spring, increase the operation and maintenance cost, and the fatigue of the spring device. Damage and other problems, to achieve the effect of easy maintenance and replacement, reducing operation and maintenance costs, and reducing stress

Inactive Publication Date: 2009-03-04
SHANGHAI MAGNETIC SUSPENSION COMM ENG TECH RES CENTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) It is difficult to arrange a spring device with relatively high stiffness in such a small space between the eddy current brake 21 and the suspension arm 16. If the spring stiffness is not enough, the eddy current brake 21 may be under the action of the normal force. Suction dead on the guide surface 8 of the track, which is an extremely dangerous working condition
[0007] (2) The spring device is prone to fatigue damage under long-term vibration, which will inevitably increase the cost of operation and maintenance
[0008] (3) It is difficult to observe whether the internal spring device is damaged during operation and maintenance, and it is difficult to replace this part

Method used

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  • Shock-absorbing device of eddy-current brake for high-speed magnetic floating vehicle and magnetic suspension vehicle
  • Shock-absorbing device of eddy-current brake for high-speed magnetic floating vehicle and magnetic suspension vehicle
  • Shock-absorbing device of eddy-current brake for high-speed magnetic floating vehicle and magnetic suspension vehicle

Examples

Experimental program
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Effect test

Embodiment 1

[0028] like figure 2 As shown, the damping device of the eddy current brake of the present invention adopts a double-link mechanism, and a metal rubber elastic compression member 25 is installed as a damping component at a proper position in the middle of the connecting rod perpendicular to the direction of the normal force. The eddy current brake 21 is connected with the connecting rods 19, 20 with two pin shafts 23, 24, forming a connecting rod structure in which the middle part is connected with the pin shafts 17, 18. The metal rubber elastic compression parts 25 and the connecting rods 13 and 15 forming an included angle are connected on the pin shafts 17 and 18 . And the other end of connecting rod 13,15 is fixed on a rotating shaft 14, and rotating shaft 14 is fixed with suspension support arm 6. The whole eddy current brake damping device just can swing around the rotating shaft 14 like this. like image 3 As shown, when the position deviation of the guide surface 8...

Embodiment 2

[0030] like Figure 4 As shown, it adopts the same structure of double connecting rods plus metal rubber elastic compression parts as in Embodiment 1, only the installation method is different. The eddy current brake 21 is connected with the connecting rods 13 and 15 through the rotating shaft 14 to form a rotating part around the rotating shaft 14 . The connecting rods 13, 15 are connected with the metal rubber elastic compression parts 25 and the connecting rods 19, 20 through pin shafts 17, 18 to form a bearing part. Connecting rod 19,20 and suspension support arm 6 utilize bearing pin 23,24 to fix. When the guide surface 8 of the track 2 deviates due to various reasons, such as Figure 5 As shown, the eddy current brake 21 will follow the guide surface 8 of the track 2 to make adjustments to transmit the braking normal force. When the braking normal force changes, the angle formed by the connecting rods 13 and 15 produces pressure on the metal rubber elastic compression...

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Abstract

The invention discloses a vibration damping device of a high-speed magnetic levitation (Maglev) vehicle eddy-current brake, which comprises a double-connecting rod mechanism which is mounted between the eddy-current brake and a suspended bracket arm, and a metal rubber elastic compressing member mounted at the middle part of the double-connecting rod mechanism between the two connecting rods in a direction which is perpendicular to the normal force. The invention further discloses a Maglev vehicle applied to a Maglev railway and provided with the vibration damping device of the eddy-current brake. The vibration damping device can be mounted in the small space between the eddy-current brake and the suspended bracket arm, cushion the vibration between the eddy-current brake and the track guiding surface caused by the transmission of the normal force, facilitate observation, maintenance and replacement when in operation and maintenance and ensure the long service life and reduced operation and maintenance cost, so that the vibration damping device is applicable to a Maglev vehicle with high-speed normal conducting magnetic levitation.

Description

technical field [0001] The invention relates to a damping device used in an eddy current brake of a high-speed magnetic levitation vehicle. The invention also relates to a magnetic levitation vehicle adopting the damping device. Background technique [0002] Maglev transportation technology is a high-speed rail transportation technology that uses constant electromagnetic attraction to keep the train in a suspended state and is pulled by a linear synchronous motor. For example: in the German patent specification DE13919058C2, in addition to maintaining the levitation state of the car body, the levitation electromagnet is required, and the linear synchronous motor can also undertake the braking function required for normal and safe operation. However, the braking force of the linear synchronous motor alone cannot meet the emergency braking force required when the train runs at high speed. [0003] The maglev train maintains a non-contact state with the track when running at ...

Claims

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Application Information

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IPC IPC(8): B60L7/28B61H7/00
Inventor 何大海
Owner SHANGHAI MAGNETIC SUSPENSION COMM ENG TECH RES CENTE
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