Obstacle removing method and obstacle removing device for railway vehicle

A rail vehicle and rail technology, applied in the field of rail vehicle manufacturing, can solve the problems of wear and tear of rubber sheets, reduce friction between wheels and rails, and regularly replace them, so as to ensure safety or reliability, improve wheel-rail friction coefficient, The effect of increasing the service life

Inactive Publication Date: 2015-03-04
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. It is a contact type obstacle removal, that is, the obstacle removal plate itself is a rubber plate, or a layer of rubber plate is fixed under the obstacle removal plate. The rubber plate is in contact with the track when the vehicle is running, so as to remove obstacles on the track. However, the rubber plate will also wear out during troubleshooting and needs to be replaced regularly
[0005] 2. It is a non-contact type of obstacle removal. There is at least a 5mm gap between the bottom of the obstacle removal board and the rail surface, so the obstacle removal board cannot remove smaller obstacles. Generally, it can only remove obstacles larger than 5mm
Small foreign matter remaining on the track will become a fatigue source of wheel rolling contact fatigue, especially not suitable for rail vehicles operating in high wind and sand areas
[0006] In addition, rail vehicles operating in alpine regions are prone to snow and ice accumulation on the tracks. The existing method is to completely rely on manpower to remove them, which wastes time and energy.
Moreover, when it rains, due to the slippery track, the friction between the wheel and the track is reduced, which will have an impact on the safe operation of the rail vehicle

Method used

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  • Obstacle removing method and obstacle removing device for railway vehicle
  • Obstacle removing method and obstacle removing device for railway vehicle
  • Obstacle removing method and obstacle removing device for railway vehicle

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Experimental program
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Effect test

Embodiment 1

[0034] Such as Figure 1 to Figure 3 As shown, the present invention provides a kind of trouble-shooting method and trouble-shooting device for rail vehicle, and trouble-shooting device comprises air supply air source 1 and injection device 2, and air supply wind source 1 and spray device 2 are connected by air pipe 3 . There are two spraying devices 2, which are respectively connected to the same air supply source 1 through the air pipe 3, or each spraying device 2 is equipped with a supply air source 1.

[0035] In this embodiment, the air supply air source 1 is an air supply air cylinder provided separately for troubleshooting, and the air supply air cylinder is fixedly installed on the vehicle body chassis (not shown in the figure) or on the frame 4 of the bogie. The specifications of the air supply cylinder are determined according to the required air pressure and air volume, generally guaranteed to be 5kg / m 3 The air pressure can meet the needs of troubleshooting. It c...

Embodiment 2

[0049] The difference from Embodiment 1 is that, as Figure 4 As shown, when the axle box body 5 is not suitable for installing the injection device 2, the injection device 2 can be fixedly installed on the frame 4 of the bogie, and a frame mounting seat 13 protrudes downward on the frame 4 in front of the wheel 8, and the injection Spray pipe 6 in the device 2 is installed on the frame mounting seat 13, makes the nozzle mouth of nozzle pipe 6 be positioned at the front of wheel 8, and baffle plate 10 is set in front of the nozzle pipe mouth of nozzle pipe 6.

[0050] In the prior art, due to the action of the spring between the frame 4 and the axle box 5, the height of the obstacle removal device installed on the frame 4 from the rail surface will change continuously. When the obstacle is less than 30mm, the obstacle removal The device will not work at all, but the high-pressure air will not be affected by the up and down movement of the frame 4, and the high-temperature and ...

Embodiment 3

[0052] The difference from the above-mentioned embodiment is that, if Figure 5 As shown, the injection device 2 can also be fixed on the underframe of the car body, installed on the front end of the underframe of the car body, and protrude a mounting seat (not shown in the figure) downwards on the underframe in front of the wheel 8, spraying Spray pipe 6 among the device 2 is installed on the mounting seat, makes the nozzle mouth of nozzle pipe 6 be positioned at the front of wheel 8, and baffle plate 10 is set in front of the nozzle pipe mouth of nozzle pipe 6.

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Abstract

The invention relates to an obstacle removing method and an obstacle removing device for a railway vehicle. Compressed air is blown to a rail in front of wheels by an air supply source to remove obstacles on the rail. The method and the device use high-pressure gas for removing the obstacles, have the advantages of zero wearing part, zero rail abrasion, zero need of periodic replacement, convenience for maintenance and cost reduction, can remove tinier foreign matters on the rail, heat and dry the rail, reduce the wheel rolling contact fatigue source, and prolong the service life of the wheels and the rail, and are specifically suitable for the railway vehicle running in high-cold and high-sand wind environments.

Description

technical field [0001] The invention relates to a rail vehicle obstacle removal method and an obstacle removal device for removing track obstacles, and belongs to the technical field of rail vehicle manufacturing. Background technique [0002] An obstacle removal device is installed at the bottom of the front end of the rail vehicle to remove obstacles on the rail surface and inside the track, so that obstacles will not cause damage to the vehicle and ensure the safe operation of the vehicle. [0003] The existing obstacle removal devices for rail vehicles mainly rely on the obstacle removal plates installed on the car body and the lower part of the bogie to remove foreign matter on the track. Currently, the obstacle removal devices have the following forms: [0004] 1. It is a contact type obstacle removal, that is, the obstacle removal plate itself is a rubber plate, or a layer of rubber plate is fixed under the obstacle removal plate. The rubber plate is in contact with t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F19/06
CPCB61F19/00
Inventor 王大强乔青峰白玉琳周君锋冯永华林鹏飞李志龙李英明程建峰
Owner CRRC QINGDAO SIFANG CO LTD
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