Automatic detection method for railway vehicle brake valve spring performance

A railway vehicle, automatic detection technology, applied in elastic testing, measuring devices, testing of mechanical parts, etc., can solve the problems of inconvenient data, large error in test results, and many human factors, to facilitate data management, eliminate artificial factors, the effect of reducing errors

Active Publication Date: 2015-01-21
中电科鹏跃电子科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of many human factors, inconvenient data management, and large error of detection results in the existing brake valve spring performance detection technology, the present invention provides an automatic detection method for the spring performance of a railway vehicle brake valve

Method used

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  • Automatic detection method for railway vehicle brake valve spring performance

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Embodiment Construction

[0027] A method for automatically detecting spring performance of a railway vehicle brake valve, the method is realized by the following steps:

[0028] a. Select a pallet scale, a force-applying piston mechanism, a displacement sensor, and a microcomputer; the force-applying piston mechanism includes a piston that can reciprocate up and down, and a stepping motor for driving the piston; install the piston on the pallet Above the scale, install the displacement sensor on the output shaft of the stepping motor, connect the signal output end of the pallet scale, the signal output end of the displacement sensor, and the signal input end of the stepping motor to the microcomputer; then, measure the piston and distance between pallet scales;

[0029] b. Place the spring to be tested upright on the pallet scale; the microcomputer sends a command to the stepping motor, and the stepping motor drives the piston to move downward according to the command, and the pallet scale starts to m...

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Abstract

The invention relates to the brake valve spring performance detection technology, in particular to an automatic detection method for the railway vehicle brake valve spring performance. The problems that according to the existing brake valve spring performance detection technology, multiple human factors exist, data are not convenient to manage, and the detection result error is large are solved. The automatic detection method for the railway vehicle brake valve spring performance comprises the following steps that a, a tray scale, a force application piston mechanism, a displacement sensor and a microcomputer are selected; b, a piston begins to compress a spring to be detected downwards; c, working out the elastic coefficient of the spring to be detected; d, working out the displacement of the spring to be detected from the highest point to the first recording point; e, working out the displacement of the piston moving downwards to the highest point of the spring to be detected; f, working out the free height of the spring to be detected; g, working out the assembling load and the working load of the spring to be detected. The automatic detection method is applicable to detection of the brake valve spring performance.

Description

technical field [0001] The invention relates to a brake valve spring performance detection technology, in particular to an automatic detection method for a railway vehicle brake valve spring performance. Background technique [0002] As the core component of the air brake system of a railway vehicle, the brake valve controls the braking and release of the vehicle, and its performance directly determines the safety of the vehicle during operation. As the core component of the brake valve, the performance of the brake valve spring directly determines the performance of the brake valve. Therefore, in order to ensure the performance of the brake valve, the performance parameters of the brake valve spring (including elastic coefficient, free height, assembly load, and working load) must be tested. At present, the brake valve spring performance detection technology is mainly divided into the following two types: one is the brake valve spring manual detector. During the detection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M5/00G01M13/00
Inventor 张九天陈庆龙李纪欣刘琴杨志杰任巍郜勇勤
Owner 中电科鹏跃电子科技有限公司
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