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A method for measuring wheel load data of a railway vehicle under different track twisting conditions

A rail vehicle and track twisting technology, applied in the field of urban rail transit vehicle testing, to achieve the effect of improving applicability and practicability

Active Publication Date: 2016-03-02
CRRC NANJING PUZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] According to the above technical problems, the present invention is based on the European standard (EN14363) on the consideration of the impact of line conditions on the safety of vehicle operation, aiming at the fact that it is currently impossible to invest in the construction of multiple test lines that meet the requirements of the standard, and it is also impossible to use the company's existing subway vehicles to reduce load The current status of the weighing platform and test tooling used in the test provides a test method that meets the standards and is easy to operate

Method used

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  • A method for measuring wheel load data of a railway vehicle under different track twisting conditions
  • A method for measuring wheel load data of a railway vehicle under different track twisting conditions
  • A method for measuring wheel load data of a railway vehicle under different track twisting conditions

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Experimental program
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Effect test

Embodiment 1

[0040] The measurement method includes the following steps:

[0041] Step 1. Check the test bench to ensure that the bench machine can work normally;

[0042] Step 2. Push the vehicle under test onto the test bench. After the vehicle is stable, mark the track corresponding to each wheel, install the support rod for the vehicle frame, and adjust the position of the frame frame so that the frame frame is in the pre-erect position. state;

[0043] Step 3: Start the crane and work at the same time, and slowly erect the vehicle. The height of the erection should ensure that the clearance between the wheel and the track meets the requirements for installing the mobile test tool; install the mobile test tool on the marked track, and wait for all After a mobile test tool is installed under the wheels, check and debug whether the mobile test tool and the data acquisition channel of the control terminal are unimpeded;

[0044] Step 4. If the mobile test tooling in step 3 and the data ...

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Abstract

The invention relates to test methods for urban rail transit vehicles and specifically provides a method for measuring wheel load data of a railway vehicle under different track twisting conditions. The method is implemented by means of a moving test tool. The moving test tool comprises a location pedestal fixed on a track; the upper portion of the location pedestal is successively provided with force sensors and an upper pressing plate; the force sensors are in control connection with a control terminal; a test wedge is detachably mounted on the upper pressing plate. The test wedge can realize height change between wheel sets so that the working condition of track twisting can be simulated. Compared with conventional wheel load reduction test methods for subway vehicles, the method is applicable to the load reduction tests for various kinds of railway vehicles, is not restricted by vehicle structures and has greatly-improved applicability and practicability.

Description

technical field [0001] The invention relates to a test method for urban rail transit vehicles, in particular to a method for measuring wheel weight data of rail vehicles under different track distortion conditions. Background technique [0002] Due to the influence of slope rate, triangular pit and rail wear, the distortion of the track line affects the safety of vehicles. According to the requirements of the European standard (EN14363), the track distortion includes vehicle distortion and bogie distortion, while considering the vertical dynamic displacement of the rail, etc. factor. In order to assess the driving safety of 100% low-floor tram vehicles under different line conditions, the standard requires that the vehicles run on twisted track conditions, and the wheel load reduction rate cannot exceed the specified limit. [0003] At present, 100% low-floor vehicles manufactured by enterprises must complete this type test test before they are delivered for official operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/10
Inventor 贾小平胡定祥门永林冯遵委孙海东钟敏金伟
Owner CRRC NANJING PUZHEN CO LTD
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