Health condition monitoring device for driving part of permanent magnet synchronous motor for monorail crane

Abstract

The invention discloses a health condition monitoring device for a driving part of a permanent magnet synchronous motor for a monorail crane. The health condition monitoring device comprises a data acquisition and data transmission gateway and a monitoring mechanism, an LSTM and a full-connection network are deployed on a data acquisition and intelligent analysis device, and real-time monitoring and intelligent analysis of the abnormal working condition of a driving part are completed at an edge end. The data transmission gateway receives an analysis result or abnormal data sent by the acquisition and intelligent analysis device through the LoRa wireless transmission module, and transmits the analysis result or abnormal data to the cloud server through the industrial Ethernet ring network and the router, thereby realizing data interaction between the sensing node and the cloud server. Circumferential temperature detection is carried out on the permanent magnet synchronous motor, and a basis for judging the friction condition of a bearing or a stator and a rotor in the permanent magnet synchronous motor during rotation is provided for operators; and the rotation concentricity degree of the output shaft during operation of the permanent magnet synchronous motor is monitored in real time.

Description

technical field [0001] The invention relates to the technical field of monitoring of permanent magnet synchronous motors, in particular to a device for monitoring the health of the driving part of a permanent magnet synchronous motor for monorail cranes. Background technique [0002] As an important auxiliary transportation equipment in coal mines, monorail cranes are responsible for the transportation of underground personnel and materials. Its safe and reliable operation is related to the safe production of mines and the safety of workers. Electric monorail cranes are in variable load and high load operating conditions for a long time, and the drive part of the permanent magnet synchronous motor needs to output high current and high voltage at any time according to the needs of on-site work, which can easily cause safety hazards and even lead to safety accidents. [0003] Traditional electrical equipment health monitoring usually uses embedded devices to send the collected...

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Problems solved by technology

[0004] (1) During the operation of the permanent magnet synchronous motor, the internal stator and rotor often have a high probability of friction, which causes the local temperature of the permanent magnet synchronous motor to rise, which in turn affects the service life of the permanent magnet synchronous motor. Traditional The health status monitoring device of the drive part of the permanent magnet synchronous motor is difficult to detect the circumferential temperature of the permanent magnet synchronous motor, it is difficult to detect the temperature change of each area of ​​the shell when the permanent magnet synchronous motor is working, and it is impossible to provide operators with a judgment on the permanent magnet synchronous The basis for the friction of the internal bearings of the motor or the stator and rotor during rotation

[0005] (2) It is difficult to monitor the concentricity of the output shaft of the permanent magnet synchronous motor during operation in real time. It is difficult for the operator to infer the faulty area inside the permanent magnet synchronous motor, and it is impossible to repair it in time after the monitoring is completed, which reduces the permanent magnet synchronous motor. Synchronous Motor Fault Monitoring Efficiency

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