Device for detecting safety performance of mining motor

Abstract

The utility model discloses a device for detecting the safety performance of a mining motor. The device comprises a current and voltage collector, a motor electric parameter collector, a temperature, humidity and atmospheric pressure sensor, a tablet terminal and a computer terminal which are arranged at the output end of an underground motor power distribution cabinet. All components of the device are provided with zigbee wireless modules, and each module comprises a high-performance wireless microcontroller with the model of JN5161A and a completely integrated front-end module with the model of RFX2401C. The device for detecting the safety performance of the mining motor can comprehensively detect the AC voltage, AC current, power factor, active power, reactive power, apparent power, ambient temperature, ambient humidity, atmospheric pressure, voltage unbalance, frequency, K value factor, phase angle, harmonic component, comprehensive efficiency, active loss and output power of the mining motor. Safety performance parameter detection of no-load reactive power, load coefficient, rated load reactive power, comprehensive power loss, active electric energy and reactive electric energy. The measurement parameters can be wirelessly sent to a tablet terminal and a computer terminal and displayed in real time through double terminals of an app of a tablet and an upper computer of a computer, and curve graphs and reports can be output, and early warning prompt and the like can be carried out.

Description

Technical Field

[0001] The utility model relates to the field of mining motor detection, in particular to a device for detecting the safety performance of mining motors. Background Art

[0002] Mining motors are important equipment in the coal mining field. They are used in many occasions in coal mines, such as hoist motors, water pump motors, ventilator motors, air compressor motors, etc. The hidden dangers in coal mine motor equipment are mainly reflected in the fact that the motors in coal mining enterprises are too old. If the old equipment is not maintained, tested and updated in time, there will be serious safety hazards. At the least, the motor equipment will be shut down, and at the worst, it will cause equipment fire and underground gas explosion, which will eventually lead to serious production safety accidents. Production is the most basic premise for coal mine safety production. In order to achieve production results and improve economic benefits, it is essential to pay attention to the detection of the safety performance of mining motors. Electromechanical equipment is prone to many faults during long-term operation, which requires professional maintenance personnel to regularly test the equipment. If problems are found during the detection process, the equipment should be repaired in time.

[0003] If the inspection work is not done properly, it is easy to cause safety accidents of electromechanical equipment. If the production equipment in coal mining enterprises is too old, the number of inspections should be increased, and the safety performance of each phase of the motor, such as voltage, current, power factor, active power, reactive power, electric energy, harmonic components, etc., should be inspected. This will improve the working efficiency and service life of the motor and reduce the occurrence of safety accidents in coal mines. Summary of the invention

[0004] The technical problem to be solved by the utility model is to overcome the above technical defects. The utility model provides a device for detecting the safety performance of mining motors. The device for detecting the safety performance of mining motors of the utility model can comprehensively detect the safety performance parameters of the mining motors, such as AC voltage, AC current, power factor, active power, reactive power, apparent power, ambient temperature, ambient humidity, atmospheric pressure, voltage imbalance, frequency, K value factor, phase angle, harmonic component, comprehensive efficiency, active loss, output power, no-load reactive power, load factor, reactive power at rated load, comprehensive power loss, active electric energy, and reactive electric energy. The above-mentioned measurement parameters can be wirelessly sent to the tablet terminal and the computer terminal, and displayed in real time through the dual terminals of the tablet app and the computer host computer, and can also be organized into reports, and early warning prompts can be made.

[0005] To achieve the technical purpose, the technical solution of the utility model is: a device for detecting the safety performance of mining motors, including a current and voltage collector installed at the output end of an underground motor distribution cabinet, a motor electrical parameter collector, a temperature, humidity and atmospheric pressure sensor, a tablet terminal and a computer terminal;

[0006] All components of the device are equipped with zigbee wireless modules.

[0007] Furthermore, the current and voltage collector, the motor electrical parameter collector, and the temperature, humidity and atmospheric pressure sensor also include a dual protection circuit for the battery protection board. The battery management circuit includes the 8261-G3P lithium battery protection IC, the 8205A dual MOS power tube chip, etc. to meet the explosion-proof requirements of underground coal mines.

[0008] Furthermore, the current and voltage collector includes a voltage and current analog-to-digital conversion module of model CS5451, a first controller of model STM32F103RBT6, and an intrinsically safe and non-safety isolation optocoupler of model TLP181.

[0009] Furthermore, the non-safety side of the current and voltage collector is integrally encapsulated with epoxy resin of model YG-303AB to meet the explosion-proof requirements of underground coal mines. After curing, the epoxy resin is transparent, which is convenient for observing the status of the working indicator light.

[0010] Furthermore, the motor electrical parameter collector includes a low-power JEFT input operational amplifier of model TL061CDR, a second controller of model STM32F407VGT6, and a dual-channel digital isolator of model ADUM1201CRZ-RL7.

[0011] Furthermore, the temperature, humidity and atmospheric pressure sensor includes a digital temperature and humidity sensor of model SHT35, an atmospheric pressure sensor of model MS5607B, and a third controller of model HC32L130J8TA.

[0012] Furthermore, the current and voltage collector, motor electrical parameter collector, temperature and humidity atmospheric pressure sensor, and the ZigBee wireless module equipped with the tablet terminal and computer terminal include a high-performance wireless microcontroller model JN5161A and a fully integrated front-end module model RFX2401C.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model adopts a dual-terminal mode of tablet terminal and computer terminal. The tablet terminal adopts Android system equipped with app detection software, and the computer terminal adopts win10 system equipped with host computer software, both of which can export test data and test reports for subsequent customer analysis.

[0015] 2. The utility model can simultaneously realize wireless interconnection between current and voltage collectors, motor electrical parameter collectors, temperature, humidity and atmospheric pressure sensors, tablet terminals and computer terminals, and simultaneously obtain the motor's AC voltage, AC current, power factor, active power, reactive power, apparent power, ambient temperature, ambient humidity, atmospheric pressure, voltage imbalance, frequency, K value factor, phase angle, harmonic component, comprehensive efficiency, active loss, output power, no-load reactive power, load factor, reactive power at rated load, comprehensive power loss, active electric energy and reactive electric energy signals. It has the advantages of real-time and fast testing, no need for wiring, simple operation, and greatly improved work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the detection device of the utility model;

[0017] Figure 2 This is the circuit schematic diagram of the utility model lithium battery protection IC and dual MOS power tube chip;

[0018] Figure 3 It is the circuit principle diagram of the analog-to-digital conversion module of the utility model;

[0019] Figure 4 It is the circuit principle diagram of the first controller of the utility model;

[0020] Figure 5 This is a circuit schematic diagram of the utility model isolation optocoupler;

[0021] Figure 6 It is a schematic diagram of the encapsulation of the non-safety side of the current and voltage collector of the utility model;

[0022] Figure 7 This is the circuit schematic diagram of the utility model low power consumption JEFT input operational amplifier;

[0023] Figure 8 It is the circuit principle diagram of the second controller of the utility model;

[0024] Fig. 9 This is the circuit schematic diagram of the utility model dual-channel digital isolator;

[0025] Fig.10 This is the circuit schematic diagram of the temperature and humidity sensor of the utility model;

[0026] Fig.11 This is a circuit schematic diagram of the utility model atmospheric pressure sensor;

[0027] Fig.12 It is the circuit principle diagram of the third controller of the utility model;

[0028] Fig.13The utility model is a circuit schematic diagram of a wireless microcontroller and a front-end module. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] A device for detecting the safety performance of mining motors, such as Figure 1 As shown, it includes a current and voltage collector installed at the output end of the underground motor distribution cabinet, a motor electrical parameter collector, a temperature, humidity and atmospheric pressure sensor, a tablet terminal and a computer terminal; all components of the device are equipped with a ZigBee wireless module to send the collected parameters wirelessly, and the dual terminals receive the wireless signal and process it for real-time display.

[0031] Further, if Figure 2 As shown, the current and voltage collector, motor electrical parameter collector, temperature, humidity and atmospheric pressure sensor also include a dual protection circuit for the battery protection board, and the battery management circuit includes an 8261-G3P lithium battery protection IC, an 8205A dual MOS power tube chip, etc., to meet the explosion-proof requirements of coal mines. B+ and B- are connected to the positive and negative poles of the lithium battery, and P+ and P- are connected to the input ends of the positive and negative power supplies of the circuit board. The DOUT pin of the 8261-G3P lithium battery protection IC is connected to the MOSFET gate connection terminal for discharge control, the COUT pin is connected to the MOSFET gate connection terminal for charging control, and the V- pin is used for the overcurrent detection input terminal and the charger detection terminal; the 8205A dual MOS power tube chip has two MOS tubes connected in series inside, and the gate is controlled to realize the on and off of the subsequent circuit connected to the MOS tube to achieve dual protection.

[0032] Further, if Figure 3 , Figure 4 and Figure 5 As shown, the current and voltage collector includes a voltage and current analog-to-digital conversion module of model CS5451, a first controller of model STM32F103RBT6, and an isolation optocoupler of model TLP181. The SCLK and SDO pins of the analog-to-digital conversion module are connected to the first controller, and the RX2 and TX2 on one side of the TLP181 isolation optocoupler are connected to the first controller for isolated data transmission. The current and voltage collector is connected to the motor distribution cabinet to detect the AC voltage, AC current and other electrical parameters of the on-site motor, and observe whether the motor is operating normally within the rated working parameters.

[0033] Further, if Figure 6As shown in the figure, the non-safety side of the current and voltage collector is encapsulated with epoxy resin model YG-303AB to meet the explosion-proof requirements of coal mines. When an internal fault occurs, the electric spark and high temperature can be effectively isolated inside the epoxy resin without causing external gas explosion. After the epoxy resin is cured, the color becomes transparent, which is convenient for observing the status of the working indicator light.

[0034] Further, if Figure 7 , Figure 8 , Fig. 9 As shown, the motor electrical parameter collector includes a low-power JEFT input operational amplifier of model TL061CDR, a second controller of model STM32F407VGT6, and a dual-channel digital isolator of model ADUM1201CRZ-RL7. The 6-pin amplified output of the low-power JEFT input operational amplifier is connected in series with R144 to connect the U19-22 pins of the second controller, and the RXD and TXD of the dual-channel digital isolator are connected to the communication pins 4 and 5 of the second controller. The motor electrical parameters are connected to the motor distribution cabinet to detect whether the electrical parameters such as voltage imbalance, frequency, K value factor, phase angle, harmonic components, etc. of the on-site motor are within the normal range.

[0035] Further, if Fig.10 , Fig.11 , Fig.12 As shown, the temperature, humidity and atmospheric pressure sensor includes a digital temperature and humidity sensor of model SHT35, an atmospheric pressure sensor of model MS5607B, and a third controller of model HC32L130J8TA. The SCL and SDA pins of the digital temperature and humidity sensor and the SCLK and SDI / SDA pins of the atmospheric pressure sensor are respectively connected to the third controller. The wireless temperature, humidity and atmospheric pressure sensor measures and records the ambient temperature, humidity and atmospheric pressure of the operating place of the mining motor.

[0036] Further, if Fig.13 As shown, the current and voltage collector, motor electrical parameter collector, temperature, humidity and atmospheric pressure sensor, tablet terminal and computer terminal also include zigbee wireless modules, which include a high-performance wireless microcontroller with model number JN5161A and a fully integrated front-end module with model number RFX2401C. The zigbee wireless module transmits the data processed and collected by the controller to the zigbee wireless modules of the tablet terminal and computer terminal. The tablet terminal and computer terminal analyze the data received by the wireless module, present the collected data in the form of numerical values, graphics, and reports, and provide early warning prompts, etc.

[0037] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A device for detecting the safety performance of a mining motor, characterized in that: It includes a current and voltage collector installed at the output end of an underground motor distribution cabinet, a motor electrical parameter collector, a temperature, humidity and atmospheric pressure sensor, a tablet terminal and a computer terminal; all components of the device are equipped with a ZigBee wireless module.

2. The device for detecting the safety performance of a mining motor according to claim 1, characterized in that: The current and voltage collector, the motor electrical parameter collector, and the temperature, humidity, and atmospheric pressure sensor also include a dual protection circuit for a battery protection board, and the battery management circuit includes an 8261-G3P lithium battery protection IC and an 8205A dual MOS power tube chip.

3. The device for detecting the safety performance of a mining motor according to claim 2, characterized in that: The current and voltage collector comprises a voltage and current analog-to-digital conversion module of model CS5451, a first controller of model STM32F103RBT6, and an isolation optical coupler of model TLP181.

4. The device for detecting the safety performance of a mining motor according to claim 2, characterized in that: The non-safety side of the current and voltage collector is integrally encapsulated with epoxy resin of model YG-303AB.

5. The device for detecting the safety performance of a mining motor according to claim 2, characterized in that: The motor electrical parameter collector comprises a low-power JEFT input operational amplifier of model TL061CDR, a second controller of model STM32F407VGT6, and a dual-channel digital isolator of model ADUM1201CRZ-RL7.

6. The device for detecting the safety performance of a mining motor according to claim 2, characterized in that: The temperature, humidity and atmospheric pressure sensor comprises a digital temperature and humidity sensor of model SHT35, an atmospheric pressure sensor of model MS5607B and a third controller of model HC32L130J8TA.

7. The device for detecting the safety performance of a mining motor according to claim 1, characterized in that: The current and voltage collector, the motor electrical parameter collector, the temperature, humidity and atmospheric pressure sensor, and the zigbee wireless modules equipped with the tablet terminal and the computer terminal include a high-performance wireless microcontroller of model JN5161A and a fully integrated front-end module of model RFX2401C.

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