Device for maintaining adhesion coefficient of wheel rail

An adhesion coefficient, wheel-rail technology, used in transportation and packaging, railway vehicle wheel guards/buffers, railway car body parts, etc., can solve problems such as limited effect, reduced adhesion coefficient, wheelset and rail surface damage, etc. To achieve the effect of reducing the frequency of sanding, stabilizing the adhesion coefficient, and improving operational efficiency

Active Publication Date: 2016-06-01
上海洲跃生物科技有限公司
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Sprinkle small particles of dry sand between the moving wheel and the rail, which can increase the friction and improve the adhesion coefficient; in the case of water medium, sand can increase the wheel-rail adhesion coefficient by 35-65%; but with the increase of speed, the water medium The viscosity-increasing effect of sanding under working conditions becomes worse
In addition, the coefficient of adhesion decreases significantly with the increase of train speed
[0005] If there are oil stains, leaves and other attachments on the rail surface or in rainy and snowy weather, the train will have to slow down and run, which will seriously affect the operating efficiency of the high-speed rail. Although sand is generally used to increase friction, the effect is limited. Moreover, the long-term use of sanding measures will accelerate the damage of the wheel set and the rail surface, pollute the track, and increase the workload of track cleaning

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for maintaining adhesion coefficient of wheel rail
  • Device for maintaining adhesion coefficient of wheel rail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: Driving when there is obvious oil stain on the rail surface or there are attachments such as leaves; the train operator automatically opens the cabin door of the train equipment through the control system, and then brushes the disc 4 successively through the lifting platform 9 and the transmission device 10. and the air knife 5 is lowered to the rail surface, start the motor 2 and the fan 8 respectively, so that the disc brush 4 starts to clean the rail surface and dry the rail surface with the strong wind of the air knife 5. When it is necessary to end the rail surface cleaning work, first cut off the motor 2 and the The power supply of the blower fan 8, then the disc brush 4 and the air knife 5 are retracted into the equipment compartment through the control system to manipulate the lifting platform 9 and the transmission device 10.

Embodiment 2

[0026] Embodiment 2: Driving in wet weather or foggy weather; the train operator automatically opens the cabin door of the train equipment cabin through the control system, then manipulates the transmission device 10 to lower the air knife 5 to the rail surface, starts the fan 8, and turns on the electric heating device 7 , use the strong hot air of the air knife 5 to dry the rail surface. When it is necessary to end the rail surface drying operation, first cut off the power supply of the electric heating device 7, and then cut off the power supply of the fan 8 after a few minutes, and then manipulate the transmission device 10 to retract the air knife 5 equipment compartment.

Embodiment 3

[0027] Embodiment 3: Driving in rainy, snowy or frosty weather; the train operator automatically opens the cabin door of the train equipment cabin through the control system, and then successively lowers the disc brush 4 and the air knife 5 to the rail surface through the lifting platform 9 and the transmission device 10 , start the motor 2 and fan 8 respectively, and then start the electric heating device 7 to make the disc brush 4 start to clean the rail surface and dry the rail surface with the strong hot air of the air knife 5. When it is necessary to end the rail surface cleaning and drying operation, first cut off The power supply of the electric heating device 7 cuts off the power supply of the motor 2 and the fan 8 after a few minutes, and then the disc brush 4 and the air knife 5 are retracted into the equipment compartment by the control system manipulation of the lifting platform 9 and the transmission device 10.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a device for maintaining adhesion coefficient of a wheel rail. The device at least comprises a bogie flashing board, a motor, a rotating shaft, a disk brush, an air knife, an air duct, an electric heating device, a fan, a lifting platform and a transmission device, wherein the bogie flashing board is mounted on the outer side of a motor car bogie wheel set; and the rest equipment is mounted in an equipment cabin above a power shaft. When in rainy, snowy, frost and heavy fog and wet days or when attachments such as floating dust, oil contamination and leaves are on a rail surface, a control system controls the transmission device so that the disk brush and the air knife drop to the rail surface from the equipment cabin; and the motor drives the disk brush on the rotating shaft to rotate at high speed, the leaves, the oil contamination, accumulated water, accumulated snow and other attachments on the rail surface are removed from the rail surface, high-pressure air generated by the fan is sprayed out from the air knife at high speed, residual water is blow-dried instantly, so that the rail surface is always in a dry state, stable adhesion coefficient between wheel rails is ensured, and a high-speed train can safely and stably run at high speed around the clock.

Description

technical field [0001] The invention belongs to the technical field of high-speed train power, and in particular relates to a device for maintaining the wheel-rail adhesion coefficient. Background technique [0002] When a locomotive or motor vehicle pulls a train, the force acting on the rail by the moving wheel can only be equal to but not greater than the adhesion force under any circumstances, otherwise the moving wheel will idle on the rail, causing the traction or braking force of the locomotive to drop sharply or even disappear. A train climbing a slope or a train braking is very dangerous. The relationship between the wheel load P and the adhesive traction force F is as follows: F=P·μ. [0003] In the formula, μ is the adhesion coefficient, which is the static friction coefficient at the contact point between the locomotive wheel and the rail. The driving wheel load of a certain type of locomotive is a fixed value. After the driving wheel load of the locomotive is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B61F19/08
CPCB61F19/08
Inventor 李春洲李珂
Owner 上海洲跃生物科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap