A passive preloaded maglev turnout main beam vibration suppression structure

A passive, turnout technology, applied in the directions of roads, tracks, buildings, etc., can solve the problems of limited vibration control frequency band and complex structure, achieve the effect of effective frequency bandwidth, improve the force of the turnout, and strengthen the connection stiffness.

Active Publication Date: 2022-06-03
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a passive preloaded magnetic levitation turnout main beam vibration suppression structure for the problems of complex structure and limited frequency band of vibration control in the existing vibration suppression method for turnouts

Method used

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  • A passive preloaded maglev turnout main beam vibration suppression structure
  • A passive preloaded maglev turnout main beam vibration suppression structure
  • A passive preloaded maglev turnout main beam vibration suppression structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like Figure 1-Figure 2 As shown in the figure, a passive preloading type maglev turnout main beam vibration suppression structure includes a turnout main girder 1 and a passive preloading mechanism. The maximum value of the pre-camber is h under the working condition without vehicle load), and the pre-camber line 6 is as follows image 3 shown, image 3 The middle 7 is the horizontal line. The precamber h is greater than 150% of the vertical deflection of the track beam under the maximum load of the train.

[0035] like Figure 4-Figure 5 As shown, the passive preloading mechanism in this embodiment includes a first structure 4 and a second structure 5, the first structure 4 is fixedly connected under the main beam 1 of the turnout, and the second structure 5 is respectively arranged on the forward position foundation 2 and the side The orientation base 3 and the second structure 5 are fixedly connected above the track base (the forward base 2 and the lateral base ...

Embodiment 2

[0041] like Image 6 As shown, the difference between this embodiment and Embodiment 1 is that the second structure 5 is fixedly connected under the main beam 1 of the turnout, and the first structure 4 is fixedly connected to the track foundation (the forward position foundation 2 and the lateral position foundation 3) above.

Embodiment 3

[0043] like Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that an elastic connecting member 8 is connected between the first mounting seat 41 and the rolling device 42 . The elastic connector 8 may be a spring or other elastic element.

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Abstract

The invention discloses a passive preloading type maglev turnout main girder vibration suppression structure, comprising a turnout main girder and a passive preloading mechanism, the turnout main beam is provided with an upward pre-camber, and the passive preloading mechanism includes a first structure and a second structure, the second structure is provided with a preload, and the size of the preload is equal to the maximum value of the pre-camber, and the first structure can drive the main girder of the turnout along the The second structure moves so that the height of the turnout girder decreases; the first structure is fixedly connected to the turnout girder, and the second structure is used to be fixedly connected to the track foundation; or the second structure is connected to the turnout girder. The main beam of the turnout is fixedly connected, and the first structure is used for fixedly connecting with the track foundation. The vibration suppression structure of the main beam of the passive preloaded maglev turnout according to the present invention, through the passive preloading mechanism, presses down the main beam of the turnout with the pre-camber to realize vibration suppression, the structure is simple, the suppression effect is good, and the effective frequency bandwidth.

Description

technical field [0001] The invention relates to the technical field of maglev rail transportation, in particular to a passive preloading type maglev turnout main beam vibration suppression structure. Background technique [0002] Medium and low speed maglev rail transit (generally refers to the speed below 120km / h) as a new type of rail, has the advantages of safe operation, no pollution and low cost, and has broad application prospects in the development of urban rail transit. The medium and low speed maglev train adopts the rail-holding operation mode. The electromagnet installed on the suspension frame of the train is controlled by the suspension controller to adsorb the F rail, so that the maglev train is in a suspended state, and the linear motor drives the train to run on the track. However, the maglev track on the actual line is not absolutely rigid and completely straight, so the suspension controller needs to adjust the control force through real-time control, so th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B25/30E01B25/32E01B19/00
CPCE01B25/30E01B25/32E01B19/003Y02A30/30
Inventor 李忠继陈志贤徐浩徐银光杨吉忠林红松冯读贝代丰肖飞知陈志辉蒋尧
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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