Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Device and method for accurately detecting wheel tread scratches and out-of-roundness

A wheel tread, accurate technology, applied in the field of rail transit, can solve the problem of low measurement accuracy, and achieve the effects of improving measurement efficiency, improving structural stability, and preventing impact

Pending Publication Date: 2020-04-07
马鞍山市雷狮轨道交通装备有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the vibration acceleration detection method extracts the out-of-roundness information of the wheel by analyzing the vibration of the track when the whole train passes the detection point, but this method is affected by the sensor installation fixture and the vibration attenuation of sleepers, and the measurement accuracy is not high.
[0004] The typical contact measurement method is the parallelogram method. For example, the application number is 200720082608.9, the name of the invention is: lift-type wheel tread insertion and out-of-roundness online dynamic detection device, and the application number is 201210307496.8, the name of the invention is: a The applications for wheel tread penetration and out-of-roundness online detection devices all disclose the online measurement method of parallelogram structure and its improvement. In the above applications, the displacement sensor is connected with the support fixed on the steel rail constituting one side of the parallelogram mechanism. The sensor can directly measure the change in the relative height between the wheel tread and the rim, and the displacement sensor records the diameter of the entire tread circumference. When the tread is not round, the sensor outputs a curve to obtain the out-of-roundness, but the above methods are not suitable. It is detected when the train passes at high speed, and its detection accuracy needs to be further improved

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 and method for accurately detecting wheel tread scratches and out-of-roundness
  • Device and method for accurately detecting wheel tread scratches and out-of-roundness
  • Device and method for accurately detecting wheel tread scratches and out-of-roundness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] combine Figure 1-Figure 5 , a device for accurately detecting wheel tread scratches and out-of-roundness in this embodiment includes a pedal 2, a sliding plate 3 and a fixed plate assembly 4 installed on the inner side of the track 1 and parallel to each other, the sliding plate 3 and the pedal 2 and the fixed plate assembly 4 are connected by a slide rail mechanism, and an elastic element 8 is connected between the sliding plate 3 and the pedal 2;

[0046] The train wheel includes a tread portion and a rim portion. The tread is out of round due to long-term contact and wear of the track, but the rim is still a standard circle without contact with other objects. Therefore, when the wheel tread is in contact with the rail at different positions, the distance from the rim apex to the top surface of the rail is not the same. In this embodiment, a pedal 2 is installed on the rail. When the wheel passes by, the top surface of the pedal 2 is always in contact with the apex ...

Embodiment 2

[0051] A device for accurately detecting wheel tread scratches and out-of-roundness in this embodiment, its structure is basically the same as that of Embodiment 1, the difference mainly lies in: image 3 , Figure 5 As shown, the swing link transmission mechanism 10 of the present embodiment includes an upper slider fixing plate 1001, a swing link 1002 and a lower slider fixing plate 1003, wherein the two ends of several parallel swing links 1002 are respectively connected with the upper slider fixing plate 1001, The lower slider fixed plate 1003 is rotated and connected to form a parallelogram mechanism (the two ends of the swing rod 1002 in this embodiment are respectively equipped with bearings, and the upper slider fixed plate 1001 and the lower slider fixed plate 1003 are respectively fixed with the above-mentioned bearings. Matching bearing pins, thereby realizing that the swing link 1002 is connected to the rotation between the upper slider fixed plate 1001 and the low...

Embodiment 3

[0053] A device for accurately detecting wheel tread scratches and out-of-roundness in this embodiment is basically the same in structure as Embodiment 2, the main difference is that the swing link transmission mechanism 10 of this embodiment is connected with the bottom plate through the slide rail mechanism. 5 can be slidably connected, and the bottom plate assembly 5 is fixedly installed on the bottom of the track 1 , and the fixed plate assembly 4 and the driving mechanism 6 are both installed on the bottom plate assembly 5 . Specifically, the slide mechanism includes a slider 1004 and a guide rail 1005, wherein the guide rail 1005 is fixedly installed on the bottom plate assembly 5, and the slider is fixedly installed on the bottom of the lower slider fixing plate 1003 at intervals. When the driving mechanism 6 is working, The lower slider fixing plate 1003 is driven to move horizontally along the linear guide rail 1005 , which is beneficial to ensure the stability of the ...

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 and a method for accurately detecting wheel tread scratches and out-of-roundness, and belongs to the technical field of rail transit. The device for accurately detecting the wheel tread scratches and out-of-roundness comprises a pedal, a sliding plate and a fixed plate assembly which are installed on the inner side of a rail and are parallel to one another. The sliding plate is connected with the pedal and the fixed plate assembly through sliding rail mechanisms, and an elastic element is connected between the sliding plate and the pedal. The sliding plate is further connected with a driving mechanism through a swing rod transmission mechanism. By the adoption of the technical scheme, real-time dynamic detection of radial runout of the train wheel tread canbe achieved, and the detection precision and the structural stability of the detection device are effectively improved compared with an existing detection mechanism.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and more specifically relates to a device and method for accurately detecting wheel tread abrasion and out-of-roundness. Background technique [0002] During the operation of the train, there will be different degrees of wear, which will affect the safe operation of the wheels, and the wheel tread scratches and radial runout caused by uneven wear will cause the wheel tread to be out of round, and the wheel tread will be out of round. The operation safety of the train poses a serious threat, which greatly increases the dynamic effect of the train vehicle on the line and itself, and at the same time brings additional vibration and impact, reduces the critical speed of the train, and makes the stability and comfort of the train worse . Therefore, the measurement of the out-of-roundness of the wheel tread is of great significance to the safe operation of the train. [0003] Wheel out-of-roundn...

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): G01B21/20G01B21/00G01N33/00B61K9/12
CPCB61K9/12G01B21/00G01B21/20G01N33/00
Inventor 贺子铭马开富
Owner 马鞍山市雷狮轨道交通装备有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com