On-line monitoring system and method of railway switch machine motor

Abstract

The invention discloses an on-line monitoring system and method of a railway switch machine motor, relating to an on-line monitoring system and method of a motor, used for online monitoring of the operation state of the switch machine motor, timely discovering equipment faults, and detecting the state and faults in real time. The system comprises a detection circuit, a sensor, an analog to digital converter, a singlechip, a communication module, a multi-path data processing unit and an upper computer, wherein the singlechip is coupled with the multi-path data processing unit through the communication module; and the multi-path data processing unit is coupled with the upper computer through a serial port. The method comprises the following steps: online monitoring the parameters of the motor; transmitting the parameters to the sensor for converting; carrying out analog to digital conversion on the parameter data converted by the sensor so that the parameter is converted into a digital signal; transmitting the digital signal to the singlechip for processing; transmitting the digital signal to the multi-path data processing unit through a network of the communication module; transmitting the processed data to the upper computer for further processing; and finally displaying the data through a graphical interface.

Description

technical field [0001] The invention relates to an on-line monitoring system and method of a motor, in particular to an on-line monitoring system and method of a railway switch point machine motor. Background technique [0002] According to the standards of the national railway transportation industry standard TB / T 2613-1994 "Test Method for Switch Machine", TB / T2614-1994 "General Technical Conditions for Switch Machine", TB / T2846-1997 "Vibration Test Method for Railway Ground Signal Products" , the main test items of the switch machine test bench are as follows: [0003] 1. Operating current The maximum current value of the motor after the motor is started when the DC point machine is at the rated terminal voltage and rated switching force; [0004] 2. Friction current The current value when the friction coupling starts to slip; [0005] 3. Conversion force: the output force when the action rod is stretched out or pulled in; [0006] 4. Action time Under the condition of...

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Problems solved by technology

[0010] 2) ZD6 series electric switch machines use DC motors, lacking AC series

Therefore, the occurrence rate of disconnection, carbon brush wear, and insufficient motor insulation resistance is very high.

[0011] Therefore, it is necessary to carry out online monitoring of the motor used in the switch machine to detect equipment failures in time and reduce the failure rate. However, the existing switch machine test benches all use hydraulic loads or gravity loads, which are large in size and inconvenient to adjust. The performance is unstable, which brings great difficulties to the test and acceptance of the switch machine motor for daily maintenance

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