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Motor train unit outer door switch state stability testing method

A technology for stability testing and EMUs, applied in railway vehicle testing, etc., can solve problems such as operator fatigue, inaccurate test times, long test process, etc., and achieve the effect of reducing labor intensity and ensuring test quality

Active Publication Date: 2017-04-26
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Problems solved by technology

[0004] In order to solve the problem that during the stability test of the outer door of the EMU, the operator occupies the driver's cab for a long time and affects the progress of other debugging procedures in the driver's cab. Inaccurate technical problem, the present invention provides a method for testing the stability of the external door switch state of the EMU

Method used

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  • Motor train unit outer door switch state stability testing method
  • Motor train unit outer door switch state stability testing method
  • Motor train unit outer door switch state stability testing method

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] In the present invention, PLC is used as the control center, peripheral electrical components are used as executive parts, LCD liquid crystal display is used as a display module, an 8*8 keyboard is used as an input module, an infrared sensor is used as a detection device, and four steppers with finger-shaped ejector rods are installed on the shaft end. As an action actuator, the motor automatically executes the action of opening and closing the outer door of the EMU under the control of the PLC program, and automatically stores the test results and test date in the chip. PLC and its peripheral electrical components are integrated in the square box, LCD and 8*8 keyboard are installed on the upper surface of the square box, four stepper motors with finger-shaped ejector rods installed on the shaft end are installed in the square box, and the infrared sens...

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Abstract

Provided is a motor train unit outer door switch state stability testing method, belonging to the technical field of high-speed motor train unit electrical debugging. The method has hand-operated and automatic modes, the automatic mode is that after the door opening and closing frequency is set, a PLC controls a stepping motor to press a switch door and a door allowance button via a push rod and controls the opening and closing of the outer door according to the outer door opening and closing state fed back by an infrared sensor, and after the opening and closing frequency reaches the set value, and the operation stops automatically and the ending time and execution frequency of the experiment is stored. According to the method, the manual operation of opening and closing doors for 200 times in the prior art is replaced by automatic devices, so that the labor intensity of operators is greatly reduced; and moreover, the operators don't occupy the driver's cab for a long time, and the progress of other debugging processes in the driver's cab is not influenced. Meanwhile, the door opening and closing operation frequency is recorded by means of a program, record errors can be prevented, the final door opening and closing frequency can be correctly counted, and the testing quality can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of electrical debugging of high-speed EMUs, and in particular relates to a method for testing the state stability of an outer door switch of an EMU. Background technique [0002] The outer door stability test project is a key process for the whole train commissioning of high-speed EMUs. The project requires the operator to operate the door open button, door close button and door permission button of the driver's station to control the EMU to realize the opening and closing actions of a total of 58 outer doors of the whole train. It needs to be repeated 200 times. In addition, the outer door of the EMU is required to have no relevant electrical and mechanical failures after 200 consecutive openings and closings, and to run smoothly and have stable performance. [0003] At present, the test process is completed by manual operation, requiring the operator to press the door permission button, door opening butto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/08
CPCG01M17/08
Inventor 李尚宇韩东宁罗昭强
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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