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Support structure, maglev train rescue device, suspension and maglev train

A technology for supporting structures and maglev trains, applied in motor vehicles, electric vehicles, railway vehicles, etc., can solve the problems of large relative displacement between the underframe and the suspension frame, high maintenance costs, affecting train rescue, etc., to enhance reliability and safety. performance, reduce design and maintenance costs, and facilitate the effect of lightweight design

Active Publication Date: 2019-01-11
ZHUZHOU ELECTRIC LOCOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power of the support wheel action is provided by hydraulic pressure, which makes the rescue support system require a set of hydraulic system for each vehicle, and the structure is very complicated
In addition, the high-pressure oil circuit should not run through the train, the supporting motive force (hydraulic pressure) has no redundancy, and the safety of the system is poor
In addition, the oil path between the vehicle chassis and the suspension frame passes through hydraulic oil as high as more than 10 MPa. Due to the large relative displacement between the chassis and suspension frame when the vehicle is running, it is a hidden trouble for long-term operation.
Once a hydraulic leak occurs somewhere in the system, it will lead to the failure of the vehicle system, affect the train rescue, poor reliability, and also pollute the track, causing the support wheel to slip, affecting the use of subsequent vehicles
Moreover, during the rescue process, it is necessary to continuously supply oil so that the pistons of the oil cylinders 1-5 extend out to support the support wheels 1-6, which not only consumes a lot of power, but also causes the pistons of the oil cylinders to fail easily after long-term use, resulting in high maintenance costs.

Method used

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  • Support structure, maglev train rescue device, suspension and maglev train
  • Support structure, maglev train rescue device, suspension and maglev train
  • Support structure, maglev train rescue device, suspension and maglev train

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 2 ~ Figure 4 As shown, the maglev train rescue system of the present embodiment includes: a support base 1, a controller 2, a plurality of motors 3 connected to the controller 2, and a plurality of support wheels 4 corresponding to a plurality of motors 3; 3 has a telescopic and rotatable shaft 31. The support base 1 is provided with a through hole 11 for the shaft 31 to pass through. One end of the shaft 31 passes through the through hole 11 and is connected with the support wheel 4.

[0040] The maglev train rescue system is fixed on the installation frame of the suspension frame through the support base 1 .

[0041] Two protrusions 32 are arranged on the side wall of the shaft 31, and the two protrusions 32 are symmetrically arranged on the side wall surface of the shaft 31; The longitudinal groove 12 that accommodates the protruding portion 32, the protruding portion 32 can move back and forth along the longitudinal groove 12 driven by the axial mov...

Embodiment 2

[0050] Such as figure 2 , 5 Shown in and 6, the rescue support system for the maglev train of the present embodiment is basically the same as Embodiment 1, and its difference is:

[0051] The through hole 11 is successively divided into a stroke section 111 and a blocking section 112 from top to bottom. The longitudinal groove 12 is opened on the inner wall of the stroke section 111, and the inner wall of the blocking section 112 is provided with holes along the circumferential direction of the through hole 11 for accommodating protrusions. The accommodating step 14 of the raised portion 32 , the step surface of the accommodating step 14 forms the upper stop surface 13 .

[0052] That is, if Figure 6 As shown, in this embodiment, the longitudinal groove 12 is opened to the bottom of the stroke section 111. When the shaft 31 extends axially to realize the support of the support wheel 4, the protrusion 32 on the shaft 31 moves to the bottom of the longitudinal groove 12. , ...

Embodiment 3

[0055] Such as figure 2 , 7 Shown in and 8, the rescue support system for the maglev train of the present embodiment is basically the same as Embodiment 1, and its difference is:

[0056] In this embodiment, the through hole 11 is divided into a stroke section 111 and a blocking section 112 from top to bottom. The accommodating groove 15 for accommodating the protruding part 32, the accommodating groove 15 is connected with the longitudinal groove 12; the upper side of the accommodating groove 15 forms an upper stop surface 13.

[0057] That is, if Figure 8 As shown, in this embodiment, the longitudinal groove 12 is opened to the bottom of the stroke section 111. When the shaft 31 extends axially to realize the support of the support wheel 4, the protrusion 32 on the shaft 31 moves to the bottom of the longitudinal groove 12. , the shaft 31 rotates at a fixed angle, and the protrusion 32 is rotated until it abuts against the upper side of the receiving groove 15 (that is,...

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Abstract

The invention discloses a maglev train rescue device, comprising an electric motor, support wheels and a support structure, wherein the support structure comprises a support seat and a shaft capable of axial movement and circumferential rotation simultaneously; the shaft is arranged in a through hole of the support seat; two ends of the shaft are pierced out from the through holes; the upper end of the shaft is connected with the electric motor, and the lower end of the shaft is connected with the support wheels; the side wall of the shaft is provided with a convex part; the inner wall of thethrough hole is provided with a longitudinal groove arranged along the axial direction of the through hole for accommodating the convex part; the convex part can reciprocate along the longitudinal groove driven by the axial movement of the shaft; the inner wall of the through hole of the support seat is provided with an upper stopping surface for blocking the axial upward movement of the shaft, and the stopping surface extends to the bottom of the longitudinal groove; and the protrusion can be driven by the rotary motion of the shaft to move below the upper stop surface. The maglev train rescue device has the advantages of simple structure, high reliability and safety, low power consumption, low maintenance cost and the like.

Description

technical field [0001] The invention relates to the technical field of maglev trains, in particular to a rescue support system for a maglev train and a maglev train using the rescue support system for the maglev train. Background technique [0002] The rescue support system of the maglev train is used to lift the train by hydraulically driving the support wheels when the suspension system fails and the train cannot be suspended, so that the train can roll and drive, and then the train can be self-rescued by linear motor traction. The structural characteristics of the traditional rescue support system are as follows: figure 1 As shown, the key components include: microcomputer control unit 1-1, electro-hydraulic control unit 1-2, accumulator 1-3, hydraulic pipeline 1-4, oil cylinder 1-5 and support wheel 1-6. [0003] The principle of the above-mentioned traditional rescue support system to realize the rescue support function is: the electro-hydraulic control unit 1-2 can es...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61B13/08B60L13/04
CPCB60L13/04B60L2200/26B61B13/08
Inventor 王明华佟来生罗华军李晓春司恩李笑严王家恒龙子凡
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO