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A pantograph-catenary and wheel-rail dynamic contact wear mechanism simulation scaling test system

A dynamic contact and scale test technology, applied in the field of rails, can solve the problems of not being able to contribute to wear, not being able to simulate the operation state of pantograph and catenary and wheel-rail subsystems, and not being able to simulate four-wheel and dual-rail bogie systems, and improve practicality. Accurate effect of dynamic and dynamic wear mechanism

Active Publication Date: 2022-03-18
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing pantograph-catenary and wheel-rail dynamic contact wear mechanism simulation scaling test system is basically a single-wheel and single-rail structure, which cannot realize the four-wheel and double-rail simulation of the bogie system, especially the simulation of the pantograph-catenary and wheel-rail subsystem on the curve. The operating state of the segment cannot be accurately studied on the important influencing factors that contribute to wear

Method used

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  • A pantograph-catenary and wheel-rail dynamic contact wear mechanism simulation scaling test system
  • A pantograph-catenary and wheel-rail dynamic contact wear mechanism simulation scaling test system
  • A pantograph-catenary and wheel-rail dynamic contact wear mechanism simulation scaling test system

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Experimental program
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Effect test

Embodiment 1

[0031] Such as Figure 1-9The pantograph-catenary and wheel-rail dynamic contact wear mechanism simulation scaling test system includes the pantograph-catenary subsystem and the wheel-rail subsystem. The pantograph-catenary subsystem includes catenary 1 and pantograph 2. The catenary 1 It is a ring structure, and the catenary 1 includes a wire net 103 with a ring structure. The top of the wire net 103 is connected to the fixed ear 102 through an intermediate connection mechanism. The intermediate connection mechanism includes a long bolt 105, the fixed ear 102 is U-shaped, and the long bolt 105 is fixedly installed on the bottom of the fixed ear 102, and the outer part of the long bolt 105 is provided with an intermediate connection block 104 slidingly connected thereto. Two-way nuts 106 for adjusting wear marks matched with the long bolts 105 are installed on the outside of the intermediate connecting block 104, that is, the overall stability of the ring structure is ensured ...

Embodiment 2

[0038] This embodiment is further optimized on the basis of embodiment 1, as Figure 9 , 10 As shown, the pantograph-catenary and wheel-rail dynamic contact wear mechanism simulation scaling test system also includes a parameter real-time state monitoring system, and the parameter real-time state monitoring system includes a vehicle speed sensor 601 and an axle temperature sensor 602. The vehicle speed sensor 601 and The axle temperature sensors 602 are all installed on the axle 311 .

[0039] The parameter real-time state monitoring system also includes a suspension vibration sensor 603, a displacement sensor 604 and a force sensor 605. The suspension vibration sensor 603 is installed on the frame 301 and the axle box seat 307 and displays time domain and frequency spectrum in real time. The displacement The sensor 604 is arranged at the end of the frame 301 to test the vertical displacement of the car body bogie 3 , and the force sensor 605 is arranged at the axial position...

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Abstract

The invention relates to a pantograph-catenary and wheel-rail dynamic contact wear mechanism simulation scaling test system, including pantograph-catenary subsystem and wheel-rail subsystem, the pantograph-catenary subsystem includes catenary and pantograph, and the catenary is The catenary has a ring structure, the catenary includes a ring-shaped wire net, the upper part of the wire net is connected to the fixed ear through an intermediate connection mechanism, and a column is fixedly installed at the end of the fixed ear away from the limit position. The present invention is different from the existing single-wheel and single-track simulation system at home and abroad, and breaks through the passing capacity and stability of the four-wheel and double-track simulation system in the circular track structure. Through the reasonable configuration of the pantograph-catenary subsystem and the wheel-rail subsystem, the The scale test system simulates the influence of different driving speeds, vehicle loads, track stiffness and discontinuous support spacing on the generation and development of wear on the circular track.

Description

technical field [0001] The invention relates to the technical field of rails, in particular to a pantograph-catenary and wheel-rail dynamic contact wear mechanism simulation scaling test system. Background technique [0002] With the continuous development of the social economy, the subway has become one of the main means of transportation for citizens to travel. However, the huge vibration and noise generated when the subway is running, especially in the small-radius curve section of the subway, greatly reduces the passenger experience. This phenomenon is generated The main reason is the wear interaction between rail and wheel in rail transit. [0003] At the same time, during the operation of the subway train, the uniform stress relationship and electrical connection between the pantograph and catenary can ensure the reliability and stability of the entire system. However, in reality, due to the insufficient elasticity of the catenary structure and the Vibration, operatin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/10
CPCG01M17/10
Inventor 高晓刚王安斌赵俊杰
Owner SHANGHAI UNIV OF ENG SCI