Temperature and vibration monitoring system for mining elevator equipment

Abstract

The invention discloses a temperature and vibration monitoring system for mining elevator equipment. The temperature and vibration monitoring system comprises an operation console, a vibration sensor, a temperature sensor, a terminal strip, an analog quantity module and a display screen, the terminal strip, the analog quantity module and the display screen are all arranged on the operation console; the vibration sensor and the temperature sensor are arranged on the mining elevator equipment; the vibration sensor and the temperature sensor are respectively connected with the terminal strip; the terminal strip is connected with the analog quantity module; the display screen is connected with the analog quantity module. The infrared temperature sensors and the vibration sensors are installed at the fixed positions of the motor, the speed reducer and the roller of the elevator, the temperature and vibration conditions of all the positions are monitored in real time, temperature and vibration data in the bearing operation working condition are analyzed through the analog quantity module, the monitoring result is uploaded to a monitoring interface of the display screen, and the monitoring effect is achieved. And an alarm can be given in time for existing fault hidden dangers, so that maintenance and troubleshooting can be carried out in time, and safe operation of the mine hoist is ensured.

Description

Technical Field

[0001] The invention relates to the field of mine hoist electric control equipment, in particular to a mine hoist equipment temperature and vibration monitoring system. Background Art

[0002] Mine hoist is a large-scale lifting mechanical equipment, which is driven by a motor and uses a wire rope to drive the container to rise and fall in the shaft to complete the lifting and transportation tasks of personnel, materials and coal. The safe operation of the mine hoist is very important. Once a failure occurs, it will directly affect the production of the coal mine. In order to ensure the safety of personnel and equipment, the requirements for the safe operation of mine hoists are getting higher and higher, and the protection and monitoring requirements of coal mining enterprises for mine hoists are becoming more and more refined. Therefore, it is necessary to provide a safe and reliable hoist equipment monitoring system. Summary of the invention

[0003] In order to solve the above technical problems, the present invention discloses a temperature and vibration monitoring system for mining hoist equipment. By setting vibration sensors and temperature sensors in mining hoist equipment, faults during the operation of the hoist can be discovered in time, thus providing guarantee for the safe operation of the hoist.

[0004] The present invention discloses a temperature and vibration monitoring system for a mine hoist, comprising an operation console, a vibration sensor, a temperature sensor, a terminal block, an analog module and a display screen; The terminal block, analog module and display screen are all arranged on the operation console; the vibration sensor and the temperature sensor are both arranged on the mining hoist equipment; the vibration sensor and the temperature sensor are respectively connected to the terminal block; the terminal block is connected to the analog module; the display screen is connected to the analog module.

[0005] A further improvement of the present invention is that the mining hoist equipment comprises a motor, a reducer and a drum; The vibration sensor comprises a motor vibration sensor arranged on the motor, a reducer vibration sensor arranged on the reducer, and a drum vibration sensor arranged on the drum; The temperature sensors include a motor temperature sensor arranged on the motor, a reducer temperature sensor arranged on the reducer, and a drum temperature sensor arranged on the drum.

[0006] A further improvement of the present invention is that the analog quantity module includes a sensor signal acquisition channel CH1, a sensor signal acquisition channel CH2, a sensor signal acquisition channel CH3, a sensor signal acquisition channel CH4, a sensor signal acquisition channel CH5 and a sensor signal acquisition channel CH6, a power input terminal and a communication interface; Pin 1 and pin 2 of the motor vibration sensor are connected to the first and second ends of the terminal row, and the first end of the terminal row is connected to pin 1 of the sensor signal acquisition channel CH1; Pin 1 and pin 2 of the motor temperature sensor are connected to the third and fourth ends of the terminal row, and the third end of the terminal row is connected to pin 1 of the sensor signal acquisition channel CH2; Pin 1 and pin 2 of the reducer vibration sensor are connected to the 5th and 6th ends of the terminal row, and the 5th end of the terminal row is connected to pin 1 of the sensor signal acquisition channel CH3; Pin 1 and pin 2 of the reducer temperature sensor are connected to the 7th and 8th ends of the terminal row, and the 7th end of the terminal row is connected to the 1st pin of the sensor signal acquisition channel CH4; Pin 1 and pin 2 of the drum vibration sensor are connected to the 9th and 10th ends of the terminal row, and the 9th end of the terminal row is connected to pin 1 of the sensor signal acquisition channel CH5; Pin 1 and pin 2 of the drum temperature sensor are connected to the 11th and 12th ends of the terminal row, and the 11th end of the terminal row is connected to pin 1 of the sensor signal acquisition channel CH6; the display screen is connected to the analog module through the communication interface.

[0007] A further improvement of the present invention is that it also includes a first power supply and a second power supply; the first power supply is connected to the power input end of the analog module; one end of the second power supply is connected to the 2nd end, the 4th end, the 6th end, the 8th end, the 10th end, and the 12th end of the terminal row; the other end of the second power supply is connected to pin 2 of the sensor signal acquisition channel CH1, pin 2 of the sensor signal acquisition channel CH2, pin 2 of the sensor signal acquisition channel CH3, pin 2 of the sensor signal acquisition channel CH4, pin 2 of the sensor signal acquisition channel CH5, and pin 2 of the sensor signal acquisition channel CH6.

[0008] A further improvement of the present invention is that the vibration monitoring process of the motor by the monitoring system is as follows: during the rotation of the motor, the motor vibration sensor collects the acceleration generated by the bearing vibration of the motor and converts the acceleration into a first current signal, and the first current signal is output to the sensor signal acquisition channel CH1 of the analog module. When the sensor signal acquisition channel CH1 detects that the current of the first current signal is greater than the first current value set in the analog module, the analog module transmits the first fault signal to the display screen through the communication interface.

[0009] A further improvement of the present invention is that the vibration monitoring process of the motor by the monitoring system is as follows: during the rotation of the motor, the temperature monitoring process of the motor by the monitoring system is as follows: during the operation of the motor, the motor temperature sensor collects the bearing temperature of the motor and converts the bearing temperature into a second current signal, and the second current signal is output to the sensor signal acquisition channel CH2 of the analog module. When the sensor signal acquisition channel CH2 detects that the current of the second current signal is greater than the second current value set in the analog module, the analog module transmits the second fault signal to the display screen through the communication interface.

[0010] A further improvement of the present invention is that both the first power supply and the second power supply are intrinsically safe power supplies; and the temperature sensor is an infrared temperature sensor.

[0011] Beneficial effects of the present invention: The temperature and vibration monitoring system for mining hoist equipment of the present invention installs infrared temperature sensors and vibration sensors at fixed positions of motors, reducers and rollers in mining hoist equipment to monitor the temperature and vibration conditions of various positions in real time. The temperature and vibration data in the bearing operating conditions are analyzed through an analog module to achieve real-time monitoring of the vibration, displacement and temperature of the equipment bearings, provide important information for early identification of various mechanical failures, and send out alarm information when the preset set value is exceeded, so as to facilitate timely maintenance and troubleshooting, nip equipment failures in the bud and ensure the safe operation of mining hoists. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a circuit diagram of the temperature and vibration monitoring system for mining hoist equipment of the present invention.

[0013] Description of Reference Numerals 101, motor vibration sensor, 102, motor temperature sensor, 201, reducer vibration sensor, 202, reducer temperature sensor, 301, drum vibration sensor, 302, drum temperature sensor, P01, display screen, X1, terminal block, A01, analog module. DETAILED DESCRIPTION

[0014] The technical scheme in the embodiment of the present invention is described clearly and completely below in conjunction with the accompanying drawings in the embodiment of the present invention. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0015] The invention discloses a temperature and vibration monitoring system for a mine hoist. By arranging a vibration sensor and a temperature sensor in the mine hoist, faults during operation of the hoist can be discovered in time, thus providing guarantee for the safe operation of the hoist.

[0016] The invention discloses a temperature and vibration monitoring system for mine hoist equipment. The monitoring system is used for performing temperature and vibration monitoring on the mine hoist equipment.

[0017] The monitoring system includes an operation console, a vibration sensor, a temperature sensor, a terminal block X1, an analog module A01, a display screen P01, a first power supply and a second power supply. The terminal block X1, the analog module A01, and the display screen P01 are all arranged on the operation console. Preferably, the first power supply and the second power supply are both intrinsically safe power supplies. The temperature sensor is an infrared temperature sensor.

[0018] The vibration sensor uses the acceleration generated by mechanical vibration to deform the crystal inside the sensor, change the polarization state of the crystal, establish a magnetic field inside the crystal, generate voltage, and calculate the linear relationship between voltage and acceleration. The infrared temperature sensor calculates the surface temperature of an object by measuring the intensity of infrared radiation emitted by the target. It can directly measure the target temperature without contacting the target.

[0019] In this embodiment, the mining hoist equipment includes a motor, a reducer and a drum. Therefore, in order to monitor the temperature and vibration of the three devices, it is necessary to install vibration sensors and temperature sensors on the three devices respectively. Specifically, the vibration sensor includes a motor vibration sensor 101 arranged on the motor, a reducer vibration sensor 201 arranged on the reducer, and a drum vibration sensor 301 arranged on the drum. The temperature sensor includes a motor temperature sensor 102 arranged on the motor, a reducer temperature sensor 202 arranged on the reducer, and a drum temperature sensor 302 arranged on the drum.

[0020] The analog module is composed of a single-chip microcomputer STM32F103RBT6 and a 4-20ma isolation module TE630N. The analog module includes sensor signal acquisition channel CH1, sensor signal acquisition channel CH2, sensor signal acquisition channel CH3, sensor signal acquisition channel CH4, sensor signal acquisition channel CH5 and sensor signal acquisition channel CH6, power input terminal and communication interface. The power input terminal has two pins, namely pin 24V+ and pin 0V, which are respectively connected to the two ends of the first power supply (1Lb+ and 01Lb-). The communication interface is a 485 communication interface, which is used to connect to the display screen P01. The communication interface has pin A1 and pin B1.

[0021] The analog module A01 is provided with 6 sensor signal acquisition channels to respectively acquire signals from 6 sensors. Specifically, the analog module A01 is connected to the 6 sensors respectively through the terminal block X1.

[0022] The terminal block X1 has 12 terminals, corresponding to the 12 pins of the vibration sensor and the temperature sensor. Figure 1 As shown, pin 1 and pin 2 of the motor vibration sensor 101 are connected to the first and second ends of the terminal block X1 respectively, and the first end of the terminal block X1 is connected to pin 1 of the sensor signal acquisition channel CH1. The motor vibration signal collected by the motor vibration sensor 101 is transmitted to the sensor signal acquisition channel CH1 through the first end of the terminal block X1.

[0023] Pins 1 and 2 of the motor temperature sensor 102 are connected to the third and fourth terminals of the terminal block X1, and the third terminal of the terminal block X1 is connected to pin 1 of the sensor signal acquisition channel CH2. The motor temperature signal collected by the motor temperature sensor 102 is transmitted to the sensor signal acquisition channel CH2 through the third terminal of the terminal block X1.

[0024] Pin 1 and pin 2 of the reducer vibration sensor 201 are connected to the 5th and 6th terminals of the terminal block X1, and the 5th terminal of the terminal block X1 is connected to the 1st pin of the sensor signal acquisition channel CH3. The reducer vibration signal collected by the reducer vibration sensor 201 is transmitted to the sensor signal acquisition channel CH3 through the 5th terminal of the terminal block X1.

[0025] Pin 1 and pin 2 of the reducer temperature sensor 202 are connected to the 7th and 8th terminals of the terminal block X1, and the 7th terminal of the terminal block X1 is connected to the 1st pin of the sensor signal acquisition channel CH4. The reducer temperature signal collected by the reducer temperature sensor 202 is transmitted to the sensor signal acquisition channel CH4 through the 7th terminal of the terminal block X1.

[0026] Pins 1 and 2 of the drum vibration sensor 301 are connected to the 9th and 10th terminals of the terminal block X1, and the 9th terminal of the terminal block X1 is connected to the 1st pin of the sensor signal acquisition channel CH5. The drum vibration signal collected by the drum vibration sensor 301 is transmitted to the sensor signal acquisition channel CH5 through the 9th terminal of the terminal block X1.

[0027] Pins 1 and 2 of the drum temperature sensor 302 are connected to the 11th and 12th terminals of the terminal block X1, and the 11th terminal of the terminal block X1 is connected to the 1st pin of the sensor signal acquisition channel CH6. The drum temperature signal collected by the drum temperature sensor 302 is transmitted to the sensor signal acquisition channel CH6 through the 11th terminal of the terminal block X1.

[0028] The 2nd, 4th, 6th, 8th, 10th and 12th ends of the terminal block X1 are all connected to one end of the second power supply, and the 2nd pin of the sensor signal acquisition channel CH1, the 2nd pin of the sensor signal acquisition channel CH2, the 2nd pin of the sensor signal acquisition channel CH3, the 2nd pin of the sensor signal acquisition channel CH4, the 2nd pin of the sensor signal acquisition channel CH5 and the 2nd pin of the sensor signal acquisition channel CH6 are all connected to the other end of the second power supply. The two ends of the second power supply are 2Lb+ and 2Lb- respectively.

[0029] The working process of the temperature and vibration monitoring system for mining hoist equipment is: Motor vibration monitoring process: The motor is equipped with a motor vibration sensor 101. During the rotation of the motor, the motor vibration sensor 101 collects the acceleration generated by the bearing vibration of the motor and converts it into a first current signal (motor vibration signal). The first current signal is output to the sensor signal acquisition channel CH1 of the analog module A01. When the sensor signal acquisition channel CH1 detects that the current of the first current signal is greater than the first current value set in the analog module A01, the analog module A01 transmits the first fault signal to the display screen P01 through the pins A1 and B1 of the communication interface. The hoist driver can intuitively observe the alarm display on the display screen P01 so as to inspect and eliminate the corresponding fault of the motor before the next start.

[0030] Motor temperature monitoring process: A motor temperature sensor 102 is installed in the motor. During the operation of the motor, the motor temperature sensor 102 collects the motor bearing temperature and converts it into a second current signal (motor temperature signal). The second current signal is output to the sensor signal acquisition channel CH2 of the analog module A01. When the sensor signal acquisition channel CH2 detects that the current of the second current signal is greater than the second current value set in the analog module A01, the analog module A01 transmits the fault signal to the display screen P01 through the pins A1 and B1 of the communication interface. The hoist driver can intuitively observe the alarm display on the display screen P01, so as to inspect and eliminate the corresponding motor fault before the next start.

[0031] The temperature and vibration monitoring and protection process of the reducer and roller is the same as that of the motor.

[0032] Vibration monitoring process of the reducer: A reducer vibration sensor 201 is installed in the reducer. During the rotation of the reducer, the reducer vibration sensor 201 collects the acceleration generated by the bearing vibration of the reducer and converts it into a third current signal (reducer vibration signal). The third current signal is output to the sensor signal acquisition channel CH3 of the analog module A01. When the sensor signal acquisition channel CH3 detects that the current of the third current signal is greater than the third current value set in the analog module A01, the analog module A01 transmits the third fault signal to the display screen P01 through the pins A1 and B1 of the communication interface. The hoist driver can intuitively observe the alarm display on the display screen P01, so as to inspect and eliminate the corresponding fault of the reducer before the next start.

[0033] Reducer temperature monitoring process: A reducer temperature sensor 202 is installed in the reducer. During the operation of the reducer, the reducer temperature sensor 202 collects the reducer bearing temperature and converts it into a fourth current signal (reducer temperature signal). The fourth current signal is output to the sensor signal acquisition channel CH4 of the analog module A01. When the sensor signal acquisition channel CH4 detects that the current of the fourth current signal is greater than the fourth current value set in the analog module A01, the analog module A01 transmits the fourth fault signal to the display screen P01 through the pins A1 and B1 of the communication interface. The hoist driver can intuitively observe the alarm display on the display screen P01, so as to inspect and eliminate the corresponding fault of the reducer before the next start.

[0034] Drum vibration monitoring process: A reducer vibration sensor 301 is installed in the drum. During the rotation of the drum, the drum vibration sensor 301 collects the acceleration generated by the vibration of the drum bearing and converts it into a fifth current signal (drum vibration signal). The fifth current signal is output to the sensor signal acquisition channel CH5 of the analog module A01. When the sensor signal acquisition channel CH5 detects that the current of the fifth current signal is greater than the fifth current value set in the analog module A01, the analog module A01 transmits the fifth fault signal to the display screen P01 through the pins A1 and B1 of the communication interface. The elevator driver can intuitively observe the alarm display on the display screen P01, so as to inspect and eliminate the corresponding fault of the drum before the next start.

[0035] Drum temperature monitoring process: A reducer temperature sensor 302 is installed in the reducer. During the operation of the drum, the drum temperature sensor 302 collects the bearing temperature of the drum and converts it into a sixth current signal (drum temperature signal). The sixth current signal is output to the sensor signal acquisition channel CH6 of the analog module A01. When the sensor signal acquisition channel CH5 detects that the current of the sixth current signal is greater than the sixth current value set in the analog module A01, the analog module A01 transmits the sixth fault signal to the display screen P01 through the pins A1 and B1 of the communication interface. The elevator driver can intuitively observe the alarm display on the display screen P01, so as to inspect and eliminate the corresponding drum fault before the next start.

[0036] The present invention installs infrared temperature sensors and vibration sensors at fixed positions of the motor, reducer, and drum of the mining hoist to monitor the temperature and vibration conditions of each position in real time. The temperature and vibration data of the bearing operating conditions are analyzed by the analog module A01, and the monitoring results are uploaded to the monitoring interface of the display screen P01. The existing hidden faults can be promptly alarmed so as to timely inspect and troubleshoot the faults, thereby ensuring the safe operation of the mining hoist.

[0037] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A temperature and vibration monitoring system for mine hoist equipment, characterized in that: Includes operation console, vibration sensor, temperature sensor, terminal block, analog module and display screen; The terminal block, analog module and display screen are all arranged on the operation console; the vibration sensor and the temperature sensor are both arranged on the mining hoist equipment; the vibration sensor and the temperature sensor are respectively connected to the terminal block; the terminal block is connected to the analog module; the display screen is connected to the analog module.

2. A temperature and vibration monitoring system for mining hoist equipment according to claim 1, characterized in that: The mining hoist equipment comprises a motor, a reducer and a drum; The vibration sensor comprises a motor vibration sensor arranged on the motor, a reducer vibration sensor arranged on the reducer, and a drum vibration sensor arranged on the drum; The temperature sensors include a motor temperature sensor arranged on the motor, a reducer temperature sensor arranged on the reducer, and a drum temperature sensor arranged on the drum.

3. A temperature and vibration monitoring system for mining hoist equipment according to claim 2, characterized in that: The analog module includes a sensor signal acquisition channel CH1, a sensor signal acquisition channel CH2, a sensor signal acquisition channel CH3, a sensor signal acquisition channel CH4, a sensor signal acquisition channel CH5 and a sensor signal acquisition channel CH6, a power input terminal and a communication interface; Pin 1 and pin 2 of the motor vibration sensor are connected to the first and second ends of the terminal row, and the first end of the terminal row is connected to pin 1 of the sensor signal acquisition channel CH1; Pin 1 and pin 2 of the motor temperature sensor are connected to the third and fourth ends of the terminal row, and the third end of the terminal row is connected to pin 1 of the sensor signal acquisition channel CH2; Pin 1 and pin 2 of the reducer vibration sensor are connected to the 5th and 6th ends of the terminal row, and the 5th end of the terminal row is connected to pin 1 of the sensor signal acquisition channel CH3; Pin 1 and pin 2 of the reducer temperature sensor are connected to the 7th and 8th ends of the terminal row, and the 7th end of the terminal row is connected to the 1st pin of the sensor signal acquisition channel CH4; Pin 1 and pin 2 of the drum vibration sensor are connected to the 9th and 10th ends of the terminal row, and the 9th end of the terminal row is connected to pin 1 of the sensor signal acquisition channel CH5; Pin 1 and pin 2 of the drum temperature sensor are connected to the 11th and 12th ends of the terminal row, and the 11th end of the terminal row is connected to pin 1 of the sensor signal acquisition channel CH6; the display screen is connected to the analog module through the communication interface.

4. A temperature and vibration monitoring system for mining hoist equipment according to claim 3, characterized in that: It also includes a first power supply and a second power supply; the first power supply is connected to the power input end of the analog module; one end of the second power supply is connected to the 2nd end, the 4th end, the 6th end, the 8th end, the 10th end, and the 12th end of the terminal row; the other end of the second power supply is connected to pin 2 of the sensor signal acquisition channel CH1, pin 2 of the sensor signal acquisition channel CH2, pin 2 of the sensor signal acquisition channel CH3, pin 2 of the sensor signal acquisition channel CH4, pin 2 of the sensor signal acquisition channel CH5, and pin 2 of the sensor signal acquisition channel CH6.

5. A temperature and vibration monitoring system for mining hoist equipment according to claim 3, characterized in that: The vibration monitoring process of the motor by the monitoring system is as follows: during the rotation of the motor, the motor vibration sensor collects the acceleration generated by the bearing vibration of the motor and converts the acceleration into a first current signal, and the first current signal is output to the sensor signal acquisition channel CH1 of the analog module. When the sensor signal acquisition channel CH1 detects that the current of the first current signal is greater than the first current value set in the analog module, the analog module transmits the first fault signal to the display screen through the communication interface.

6. A temperature and vibration monitoring system for mining hoist equipment according to claim 3, characterized in that: The temperature monitoring process of the motor by the monitoring system is as follows: during the operation of the motor, the motor temperature sensor collects the bearing temperature of the motor and converts the bearing temperature into a second current signal, and the second current signal is output to the sensor signal acquisition channel CH2 of the analog module. When the sensor signal acquisition channel CH2 detects that the current of the second current signal is greater than the second current value set in the analog module, the analog module transmits the second fault signal to the display screen through the communication interface.

7. A temperature and vibration monitoring system for mining hoist equipment according to claim 4, characterized in that: The first power supply and the second power supply are both intrinsically safe power supplies; and the temperature sensor is an infrared temperature sensor.

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