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Braking system test bench for high-speed magnetic levitation train

A technology for maglev trains and braking systems, applied in railway vehicle testing and other directions, can solve the problems of increased cost of test benches, lack of simulation, and impracticality, and achieve improved accuracy and convenience, reduced test costs, and simple structure. Effect

Inactive Publication Date: 2018-12-11
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of high-speed trains, especially in the design and production process of high-speed maglev trains, in order to ensure the normal operation and safe braking of the trains, it is necessary to simulate the braking effect under various parameters and various environments, and the speed of 600Km per hour Real vehicle testing is impractical and extremely unsafe, and there is no brake test bench that simulates the operating parameters of real vehicles in various environments. A set of test benches is required for each train operating condition, which makes the cost of the test bench greatly Increase

Method used

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  • Braking system test bench for high-speed magnetic levitation train
  • Braking system test bench for high-speed magnetic levitation train

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A high-speed maglev train brake system test bench, comprising: a motor 1 fixed by a test bench base 11, a motor shaft of the motor 1 is coaxially connected with a transmission shaft 4 through a shaft coupling 2, and a rail wheel is connected on the transmission shaft 4, The track wheel is coaxial with the transmission shaft 4, the axial direction of the track wheel is composed of two alloy steels 5 in the outer layer and the soft magnetic steel 6 interlayer between the two alloy steels 5, and the radially outer side of the track wheel is provided with Braking test tooling 12, the pulling pressure sensor 8 is installed on the braking test tooling 12.

[0022] In this example, if figure 1 , figure 2 In the shown embodiment, the motor 1 is used as the power source, and the order of connecting the transmission shaft 4 of the motor 1 with the motor transmission shaft from left to right in the figure is: motor shaft, coupling 2, transmission shaft 4 and the track wheel; an...

Embodiment 2

[0024] On the basis of Embodiment 1, a torque meter 3 is connected to the transmission shaft 4 between the motor 1 and the track wheel.

[0025] The track wheel is connected to the transmission shaft 4 through an expansion sleeve, and at least a part of the transmission shaft 4 is bearing-connected to the base 11 of the test bench.

[0026] A test frame 10 fixed by a test bench base 11 is arranged around the track wheel, and a brake test tool 12 is detachably arranged on the test frame 10 .

[0027] The test frame 10 is provided with a temperature sensor.

[0028] In this embodiment, the torque meter 3 mainly measures the track wheel, and can be set up on the motor shaft or transmission shaft 4 between the motor 1 and the track wheel, and cooperates with the tension and pressure sensor 8 to measure and obtain various data to complete the test. Preferably, a torque meter 3 is provided at the junction of the drive shaft 4 and the shaft coupling 2 at the junction of the motor sh...

Embodiment 3

[0033] On the basis of Embodiment 1 or Embodiment 2, the alloy steel 5 and the soft magnetic steel 6 in the track wheel are fixed by cooperating with each other through corrugated grooves.

[0034] A protective cover 9 for covering the track wheel is arranged outside the track wheel, the protective cover 9 is coaxial with the track wheel, and the brake test tool 12 penetrates the protective cover 9 .

[0035] In the present embodiment, the soft magnetic steel 6 is a special material required by the maglev train, which meets the required mechanical properties and electromagnetic properties of the operation. The yield strength of the soft magnetic steel 6 material itself is relatively low. High-speed rotation will approach the yield limit and reduce the safety factor. Therefore, the present invention uses two pieces of alloy steel 5 to clamp soft magnetic steel 6. The alloy steel 5 is a high-strength alloy steel, that is, the tensile strength is 50kg / mm 2 Above, and the inclined...

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Abstract

The invention discloses a braking system test bench for a high-speed magnetic levitation train, which relates to the field of high-speed rains and is applied to laboratory simulation for a braking system of a magnetic levitation train. The test bench can conduct tests on various braking conditions of the high-speed train. The test bench comprises a main motor, a rail wheel, a test frame, a protective cover, various different brake test tools and matched data acquisition sensors and the like, wherein the rail wheel adopts a structural form in which soft magnetic steel is fixed by two pieces ofhigh-strength alloy steel in a clamping mode, the structural strength and safety of the soft magnetic steel in the process of the high-speed test are ensured while obtaining the required moment of inertia. The motor drives the rail wheel to rotate at a high speed, the high-speed running state of the magnetic levitation train is simulated in a rotating mode, an electromagnetic eddy current brakingtest, a smooth surface skid braking test and a step skid braking test can be conducted by selecting different tools, the test efficiency is improved, and the cost is saved.

Description

technical field [0001] The invention relates to the field of high-speed trains, in particular to a test bench for braking systems of high-speed magnetic levitation trains. Background technique [0002] In the field of high-speed trains, especially in the design and production process of high-speed maglev trains, in order to ensure the normal operation and safe braking of the trains, it is necessary to simulate the braking effect under various parameters and various environments, and the speed of 600Km per hour Real-car testing is impractical and extremely unsafe, and there is no brake test bench that simulates the operating parameters of real cars in various environments. A set of test benches is required for each train operating condition, which makes the cost of the test bench greatly Increase. Contents of the invention [0003] The present invention provides a high-speed maglev train braking system test bench, which aims to solve the above-mentioned defects in the prio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/08
CPCG01M17/08
Inventor 吴凡李卫东王果丁锋陈建峰王震孔立群
Owner CHINA NAT HEAVY MACHINERY RES INSTCO