Three-degree-of-freedom wheel rail relation test stand for high-speed track

A wheel-rail relationship and high-speed track technology, applied in vibration testing, railway vehicle testing, machine/structural component testing, etc., can solve problems such as inability to test wheel-rail reliability, achieve high motion transmission efficiency, comprehensive test functions, The effect of ensuring accuracy

Pending Publication Date: 2017-06-13
JILIN UNIV
View PDF7 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the wheel-rail reliability test cannot be done directly on the train in actual operation, thereby providing a high-speed track three-degree-of-freedom wheel-rail relationship test bench

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
  • Three-degree-of-freedom wheel rail relation test stand for high-speed track
  • Three-degree-of-freedom wheel rail relation test stand for high-speed track
  • Three-degree-of-freedom wheel rail relation test stand for high-speed track

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054]The present invention is described in detail below in conjunction with the embodiment described in accompanying drawing:

[0055] The purpose of the present invention is to provide a new three-degree-of-freedom wheel-rail relationship test bench for high-speed rails, which solves the problem that it is difficult to carry out wheel-rail relationship reliability tests in the actual operation of existing trains. The rail wheel motion device and power bogie simulation loading frame included in the three-degree-of-freedom wheel-rail relationship test bench for high-speed rail can accurately simulate the radial and axial loads on rail train wheel sets in actual working conditions and the train's turning The motion state of the wheel set, the impact of the track on the wheel set and the motion state under various motion conditions, and the test bench is equipped with a weight car to simulate the actual load-bearing state of the wheel set, which truly reproduces the wheel and rai...

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 relates to a three-degree-of-freedom wheel rail relation test stand for a high-speed track. The test stand comprises dual three-degree-of-freedom track wheel system devices (1) and a weight vehicle and six-degree-of-freedom pose control system device (2); the weight vehicle and six-degree-of-freedom pose control system device (2) is mounted on a No. 1 T-shaped groove platform (5) and a No. 2 T-shaped groove platform (6) through 2 No. 1 vertical actuator and connecting rod assemblies and 2 No. 2 vertical actuator and connecting rod assemblies. The test stand can be used to accurately simulate the vibration of opposite wheel sets on the track when a high-speed bullet train runs on an actual track; two track wheels are not directly connected and achieve three-degree-of-freedom movement respectively through six actuators, namely transverse movement, vertical movement and rotational movement around a longitudinal axis; and the simulation of unsmooth phenomenon on the high-speed train track can be realized. Therefore, the problem that wheeltrack reliability tests cannot be directly conducted in an actually running train is solved.

Description

technical field [0001] The invention relates to a wheel-rail interaction test platform based on wheel-rail contact, more specifically, the invention relates to a new three-degree-of-freedom wheel-rail relationship test platform for a high-speed track. Background technique [0002] At present, under the premise that our country implements the principle and policy of greatly increasing the speed of railways, the running speed of rail vehicles in our country has been greatly improved. This has also led to the rapid development of EMU technology. At present, the maximum speed of EMUs in operation has reached 350km / h, and the maximum speed of EMUs under development is close to 500km / h. By 2020, the national railway network will be basically completed, the operating mileage will reach more than 100,000 kilometers, the passenger dedicated line and high-speed railway will reach 10,000 kilometers, and the urban rail transit will reach about 4,000 kilometers. Due to the increase of v...

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): G01M17/10G01M7/02
CPCG01M7/02G01M17/10
Inventor 苏建郑小庆石哲宇吕福权张雪平陈雷张益瑞牛治慧王启明张兰许影张亨飏陈学渊
Owner JILIN UNIV
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