Fault analysis and diagnosis system for temperature vibration monitoring of electromechanical equipment in coal mine

  Shandong Meian mining equipment Co
, Ltd
supplies life cycle health management of important coal mine equipment, on-line monitoring and fault intelligent diagnosis of large equipment, on-line monitoring of motor bearing temperature of coal mine electromechanical equipment, on-line monitoring of motor bearing vibration of coal mine electromechanical equipment, hoist brake shoe clearance protection device, on-line monitoring of vibration temperature On line monitoring and intelligent fault diagnosis of large electromechanical equipment in coal mine

The basic requirements and scoring methods for the standardized management system of coal mine safety production published and implemented on July 1, 2020 pointed out that the temperature and vibration monitoring of motor and main bearings are required for coal mine electromechanical equipment such as hoist, steel wire rope traction, roller belt conveyor, belt conveyor, air compressor, pressure fan and water pump

Device function
1
On line monitoring of temperature and vibration of motor main bearing of hoist, water pump, belt conveyor and other equipment
2
On line temperature and vibration monitoring of drum main bearing of elevator, water pump, belt conveyor and other equipment
3
Temperature and vibration monitoring of motor main bearing of electromechanical equipment in coal mine
4
Audible and visual alarm for motor main bearing temperature vibration exceeding limit
5
Drum main bearing temperature vibration over limit audible and visual alarm
6
Visual inspection of real-time curve of motor bearing temperature and vibration parameters
7
Traceability of alarm records of motor bearing temperature and vibration parameters
8
Remote (Ethernet or wireless network) on-line monitoring of temperature and vibration parameters of drum and motor main bearing
9
On line monitoring of motor three-phase winding temperature of hoist, water pump, belt conveyor and other equipment
10
On line monitoring of motor voltage of hoist, water pump, belt conveyor and other equipment
11
On line monitoring of motor current of hoist, water pump, belt conveyor and other equipment
12
On line monitoring of motor power (active and reactive) of hoist, water pump, belt conveyor and other equipment
13
Magnetic suction non-contact sensor is adopted, which does not damage the original mechanical structure of motor bearing
The magnetic suction temperature sensor is encapsulated in a magnetic shell, and the front end of the temperature probe is flat, which can be easily adsorbed to the paramagnetic metal surface for temperature measurement, and can be easily removed
It is applicable to the key temperature detection of large equipment before leaving the factory, as well as other occasions where the temperature detection points need to be changed frequently
The temperature measurement range of the product is - 50 ~ 150 ℃, which is used together with the temperature transmitter and outputs the industrial standard signal: 4 ~ 20mA or 1 ~ 5VDC signal
Carry out accurate temperature measurement and control with display instrument, control instrument, patrol instrument, collector, paperless recorder, etc

The magnetic suction vibration sensor is installed on the magnetic suction base, which integrates the magnetoelectric vibration sensor and Jing density measurement circuit to realize the traditional & ldquo; Sensor x monitoring instrument & rdquo; The function of mode vibration measurement system is suitable for building Jingji Gaojing degree vibration measurement system
The transmitter can be directly connected to DCS, PLC or other systems
It is an ideal choice for vibration measurement of fan, water pump and other plant equipment

14
The device can realize automatic operation, intelligent dispatching, remote control and unattended of electromechanical equipment
And it can monitor and display the temperature parameters, vibration parameters and other operating parameters of coal mine electromechanical equipment in real time

15
The device has multi-channel vibration and temperature monitoring sensors
Through various sensors, the vibration, temperature, pressure, transportation volume, air volume, load capacity, voltage, current, active power, reactive power, motor speed, electric quantity and other operating parameters of the equipment are collected
After PLC analysis and processing, the data are uploaded to the ground upper computer, combined with transportation and work tasks, The dispatcher can remotely control the equipment on the upper computer;
16
The wired data collector is responsible for the signal acquisition, signal processing, signal analysis and data transmission of the fixed equipment in the coal mine, completes the real-time analysis of the signal, and uploads the obtained vibration amplitude, waveform, spectrum, envelope waveform, envelope spectrum and other parameters that can reflect the vibration characteristics and status of the equipment and components to the server of the monitoring center

17
The collector adopts the embedded structure of FPGA + DSP to realize the synchronous acquisition of all vibration channel signals
DSP integrates the vibration signal analysis algorithm to meet various working requirements such as variable speed and variable working conditions
The real-time calculation order monitoring technology is adopted to realize the functions of vibration signal acquisition, automatic speed monitoring, broadband and narrowband analysis, on-chip signal processing (DSP chip), intelligent alarm and so on
Temperature and vibration monitoring of motor main bearing of electromechanical equipment in coal mine