Belt conveyor fault simulation detection system

Abstract

The invention discloses a belt conveyor fault simulation detection system, including: a driving device, the driving device is used to provide power output under different working conditions; a belt conveyor transmission simulation device, the driving device is connected to the belt conveyor transmission simulation device to drive the belt conveyor transmission simulation device to operate; a loading device, the loading device is connected to the driving device and the belt conveyor transmission simulation device, and is used to apply simulated load to the driving device and the belt conveyor transmission simulation device; a signal acquisition device, the signal acquisition device is used to collect signal data of the driving device, the belt conveyor transmission simulation device and the loading device, and analyze and judge the collected signal data. The belt conveyor fault simulation detection system according to the embodiment of the present invention can analyze and diagnose the fault type and fault degree, reduce unnecessary downtime and maintenance time of the belt conveyor, and improve work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of fault detection, and in particular to a belt conveyor fault simulation detection system. Background Art

[0002] As a long-distance continuous transportation equipment, belt conveyor has the advantages of strong conveying capacity, simple structure and low cost. It is widely used in mining, ports, food processing and other fields. With the continuous advancement of industrialization, large-scale belt conveyors with long distance, large capacity and high belt speed have become the main direction of development. However, due to the usually harsh operating conditions of belt conveyors, factors such as heavy load, fatigue, corrosion and high temperature will inevitably cause different degrees of failure of its core components and important mechanical structures. Once a failure occurs, it will inevitably affect the entire production operation, and even lead to production paralysis, causing irreparable economic losses. Summary of the invention

[0003] The purpose of the present invention is to provide a belt conveyor fault simulation detection system, which can analyze and diagnose the fault type and fault degree, thereby facilitating the analysis of the fault type and life prediction of the belt conveyor in actual working conditions, reducing unnecessary downtime for maintenance, and improving work efficiency.

[0004] A belt conveyor fault simulation detection system according to an embodiment of the present invention includes: a driving device, the driving device is used to provide power output under different working conditions; a belt conveyor transmission simulation device, the driving device is connected to the belt conveyor transmission simulation device to drive the belt conveyor transmission simulation device to operate; a loading device, the loading device is connected to the driving device and the belt conveyor transmission simulation device, and is used to apply simulated load to the driving device and the belt conveyor transmission simulation device; a signal acquisition device, the signal acquisition device is used to collect signal data of the driving device, the belt conveyor transmission simulation device and the loading device, and analyze and judge the collected signal data.

[0005] According to the belt conveyor fault simulation detection system of the embodiment of the present invention, the belt conveyor transmission simulation device is operated under the actual working conditions set up by the driving device and the loading device, the signals of the driving device, the belt conveyor transmission simulation device and the loading device are collected by the signal acquisition device, and the characteristic information of the belt conveyor transmission simulation device under different operating conditions and different loading conditions is analyzed to analyze and judge the fault state and fault type of the belt conveyor transmission simulation device, so as to obtain the fault type and fault cause of the belt conveyor transmission simulation device under different states and different working conditions, so as to provide basic data for the fault classification and life prediction of key components under the actual working conditions of the belt conveyor. In this way, when the parts of the belt conveyor under the actual working conditions are detected, the detected information data is compared with the basic data obtained by the experiment of the belt conveyor fault simulation detection system, so as to effectively identify the fault type and cause of the key parts of the belt conveyor, thereby greatly reducing the unnecessary downtime and maintenance time of the belt conveyor, and improving work efficiency.

[0006] According to some embodiments of the present invention, the driving device includes a driving motor and an adjusting device for adjusting the power output of the driving motor under different working conditions.

[0007] Optionally, the regulating device includes a frequency converter and a programmable logic controller, the programmable logic controller is used to write speed control programs for different working conditions, and the programmable logic controller is connected to the frequency converter to control the drive motor to provide power output for different working conditions.

[0008] According to some embodiments of the present invention, the signal acquisition device includes a torque sensor, which is arranged between the drive device and the belt conveyor transmission simulation device to detect the output torque between the drive device and the belt conveyor transmission simulation device.

[0009] According to some embodiments of the present invention, the belt conveyor transmission simulation device includes a power transmission device and a power bearing device, the power transmission device includes a detachable gear transmission device and a synchronous belt transmission device, and the gear transmission device and the synchronous belt transmission can be switchably connected between the driving device and the power bearing device.

[0010] Optionally, the power bearing device is a bearing shaft, the loading device includes a brake, and the end of the bearing shaft is connected to the brake.

[0011] Optionally, the brake is a magnetic powder brake.

[0012] Optionally, the loading device comprises a hydraulic device for applying a radial load to the load-bearing shaft.

[0013] Optionally, the hydraulic device includes: an oil tank, a pump station, a hydraulic cylinder, and an oil circuit connected between the oil tank, the pump station and the hydraulic cylinder.

[0014] Optionally, the signal acquisition device includes a tension sensor, and the tension sensor is arranged between the hydraulic device and the output shaft to detect the radial load on the load-bearing shaft.

[0015] Optionally, a load-bearing bearing is provided on the load-bearing shaft, and the signal acquisition device includes an acceleration sensor, and the acceleration sensor is provided on the load-bearing bearing and the power transmission device.

[0016] Optionally, the signal acquisition device further comprises a vibration signal acquisition instrument, which is connected to the acceleration sensor to acquire vibration signals of the load-bearing bearing and the belt conveyor transmission simulation device.

[0017] Optionally, when the gear transmission device is connected between the driving device and the power bearing device, the signal acquisition device includes an oil detection device, and the oil detection device is connected to the gear transmission device to detect the oil state of the gear transmission device.

[0018] Optionally, the oil detection device includes an oil sample analyzer, a hydraulic pump and an oil pipeline, and the oil pipeline is connected between the oil sample analyzer, the hydraulic pump and the gear transmission device for oil transmission.

[0019] According to some embodiments of the present invention, the loading device further includes a vibration exciter, which is used to generate a vibration signal to simulate noise interference in actual working conditions.

[0020] Optionally, it also includes a test bench, the driving device, the belt conveyor transmission simulation device, the loading device and the signal acquisition device are located on the test bench, and the vibration exciter is installed on the test bench. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a belt conveyor fault simulation detection system according to an embodiment of the present invention.

[0022] Reference numerals:

[0023] 100: Belt conveyor fault simulation detection system;

[0024] 1: driving device, 11: driving motor, 12: regulating device, 121: programmable logic controller, 122: frequency converter;

[0025] 21: gear transmission device, 22: load-bearing shaft, 23: load-bearing bearing;

[0026] 31: Torque sensor, 32: Tension sensor, 33: Hydraulic device, 331: Oil tank, 332: Pump station, 333: Hydraulic cylinder, 334: Oil circuit, 34: Vibration signal collector, 35: Oil detection device, 351: Oil sample analyzer, 352: Hydraulic pump, 353: Oil pipeline, 36: Brake, 37: Vibrator,

[0027] 38: Acceleration sensor;

[0028] 4: Experimental bench;

[0029] 5: Coupling; 6: Computer. DETAILED DESCRIPTION

[0030] The belt conveyor fault simulation detection system proposed by the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Reference below Figure 1 A belt conveyor fault simulation detection system 100 according to an embodiment of the present invention is described.

[0032] like Figure 1 As shown, the belt conveyor fault simulation detection system 100 according to an embodiment of the present invention may include a driving device 1, a belt conveyor transmission simulation device, a loading device and a signal acquisition device.

[0033] Specifically, the drive device 1 is used to provide power output under different working conditions. For example, the drive device 1 can simulate the starting, stopping, constant speed, speed change and other working conditions of the belt conveyor in actual working conditions. In this way, when conducting a simulation test experiment, the drive device 1 can simulate different actual working conditions of the belt conveyor for power output according to the experimental needs.

[0034] The belt conveyor transmission simulation device is used to simulate the transmission mechanism of the belt conveyor in actual working conditions. The driving device 1 is connected to the belt conveyor transmission simulation device to drive the belt conveyor transmission simulation device to operate. The driving device 1 can drive the belt conveyor transmission simulation device to operate under different working conditions through the power output of different working conditions.

[0035] The loading device is connected to the drive device 1 and the belt conveyor transmission simulation device, and is used to apply simulated loads to the drive device 1 and the belt conveyor transmission simulation device. Specifically, the loading device can apply different loads to the belt conveyor transmission simulation device according to the actual working conditions of the belt conveyor. For example, loads can be applied to different parts or different positions of the belt conveyor transmission simulation device to simulate the loads borne by the faulty parts of the belt conveyor that need to be detected in the actual working conditions, wherein the load applied by the loading device can be a proportionally reduced or increased load borne by the parts of the belt conveyor in the actual working conditions. The loading device can also simulate the environmental loads borne by the belt conveyor in the actual working conditions, such as noise and vibration, to apply the same environmental loads to the belt conveyor transmission simulation device and the drive device 1, and combine the power output of the drive device 1 in different working conditions, so that the belt conveyor transmission simulation device and the drive device 1 can operate as much as possible in the simulated actual working conditions of the belt conveyor.

[0036] The signal acquisition device is used to collect signal data of the drive device 1, the belt conveyor transmission simulation device and the loading device, and analyze and judge the collected signal data. In this way, when the belt conveyor fault simulation detection system 100 is running, the signal acquisition device obtains the collected information, such as vibration information, oil sample information and noise information, etc. According to the information collected by the signal acquisition device, the operating status of the drive device 1 and the belt conveyor transmission simulation device can be judged, and the belt conveyor transmission simulation device is monitored to analyze and diagnose the performance and faults of the belt conveyor transmission simulation device, and to judge the fault type and cause of the belt conveyor transmission simulation device, which is conducive to analyzing the differences in fault characteristics, effectively identifying the fault type and realizing the life prediction of each component, greatly reducing unnecessary downtime and maintenance time, and improving work efficiency.

[0037] According to the belt conveyor fault simulation detection system 100 of the embodiment of the present invention, the belt conveyor transmission simulation device is operated under the actual working conditions established by the driving device 1 and the loading device, the signals of the driving device 1, the belt conveyor transmission simulation device and the loading device are collected by the signal acquisition device, and the characteristic information of the belt conveyor transmission simulation device under different operating conditions and different loading conditions is analyzed to analyze and judge the fault state and fault type of the belt conveyor transmission simulation device, so as to obtain the fault type and fault cause of the belt conveyor transmission simulation device under different states and different working conditions, so as to provide basic data for the fault classification and life prediction of the key components of the belt conveyor under the actual working conditions of the belt conveyor. In this way, when the components of the belt conveyor under the actual working conditions are detected, the detected information data is compared with the basic data obtained by the belt conveyor fault simulation detection system 100 experiment, so as to effectively identify the fault type and cause of the key components of the belt conveyor, thereby greatly reducing the unnecessary downtime and maintenance time of the belt conveyor, and improving work efficiency.

[0038] In some embodiments of the present invention, the drive device 1 includes a drive motor 11 and an adjustment device 12 for adjusting the drive motor 11 to output power in different working conditions, that is, the output power of the drive motor 11 is adjusted by the adjustment device 12, so that the drive device 1 can provide power output in different working conditions. Optionally, the adjustment device 12 may include a frequency converter 122 and a programmable logic controller 121, the programmable logic controller 121 is used to write speed control programs for different working conditions, and the programmable logic controller 121 is connected to the frequency converter 122 to control the drive motor 11 to provide power output in different working conditions, thereby, a variety of speed control programs can be written through the programmable logic controller 121, and the drive motor 11 is driven by the frequency converter 122 to achieve different modes of power output, and control the start, stop, uniform speed and variable speed of the belt conveyor in the simulated actual working conditions. Among them, the programmable logic controller 121 can be a Siemens PLC 300 series, the frequency converter 122 can be a Siemens MM440 series, and the drive motor 11 can be a Siemens three-phase asynchronous motor low-voltage AC motor.

[0039] The signal acquisition device may include a torque sensor 31, which is disposed between the drive device 1 and the belt conveyor transmission simulation device to detect the output torque between the drive device 1 and the belt conveyor transmission simulation device. The output torque information detected by the torque sensor 31 may provide data information for fault diagnosis. Optionally, the belt conveyor fault simulation detection system 100 also includes a coupling 5, which is used to realize power transmission of each component. There may be multiple couplings 5, wherein the couplings 5 ​​may be connected between the drive device 1 and the belt conveyor transmission simulation device. For example, Figure 1 As shown, there may be two couplings 5, and the two couplings 5 ​​are respectively connected between the drive motor 11 and the torque sensor 31 and between the belt conveyor transmission simulation device and the torque sensor 31.

[0040] In some embodiments of the present invention, the belt conveyor transmission simulation device includes a power transmission device and a power bearing device, the power transmission device includes a detachable gear transmission device 21 and a synchronous belt transmission device, the gear transmission device 21 and the synchronous belt transmission can be switchably connected between the drive device 1 and the power bearing device, that is, the power transmission device includes a gear transmission device 21 and a synchronous belt transmission device, the gear transmission device 21 and the synchronous belt transmission device can be disassembled and replaced, so that the gear transmission device 21 or the synchronous belt transmission device can be installed between the drive device 1 and the power bearing device according to the experimental needs. Among them, the gear transmission device 21 can be a gear box, and optionally, the gear box can be a two-stage reducer. Furthermore, the input and output shaft wheelbases of the gear transmission device 21 and the synchronous belt transmission device are the same, so that an equal position interchange method can be adopted, wherein the gear transmission device 21 can be used for conventional fault diagnosis experiments, and the synchronous belt transmission device can be used for degradation experiments.

[0041] Optionally, the power bearing device can be a bearing shaft 22, the front end of the bearing shaft 22 can be connected to the power transmission device, the loading device includes a brake 36, and the end of the bearing shaft 22 is connected to the brake 36, thereby, the brake 36 can be formed as the end of the transmission system of the belt conveyor fault simulation detection system 100, and the brake 36 can be used to apply a torque load to the bearing shaft 22. Furthermore, the brake 36 is a magnetic powder brake 36.

[0042] In some examples of the present invention, the loading device may include a hydraulic device 33, which is used to apply a radial load to the bearing shaft 22, so that the radial loading in the belt conveyor fault simulation detection system 100 can be achieved by the hydraulic device 33, so as to facilitate the application of radial load to the bearing shaft 22 when the belt conveyor fault simulation detection system 100 is tested. Figure 1 As shown, the hydraulic device 33 may include an oil tank 331, a pump station 332, a hydraulic cylinder 333, and an oil circuit 334 connected between the oil tank 331, the pump station 332, and the hydraulic cylinder 333, that is, the hydraulic device 33 includes an oil tank 331, a pump station 332, a hydraulic circuit 334, and the oil circuit 334 is connected between the oil tank 331, the hydraulic cylinder 333, and the pump station 332 to realize the transportation of oil. The hydraulic cylinder 333 is connected to the load-bearing shaft 22 to apply a radial load to the load-bearing shaft 22.

[0043] Optionally, the signal acquisition device includes a tension sensor 32, which is arranged between the hydraulic device 33 and the load-bearing shaft 22 to detect the radial load on the load-bearing shaft 22. The radial load information of the load-bearing shaft 22 can be detected and obtained through the tension sensor 32 to provide powerful experimental data for conducting experiments on the belt conveyor fault simulation detection system 100.

[0044] In some examples of the present invention, a load-bearing bearing 23 is provided on the load-bearing shaft 22, and the signal acquisition device includes an acceleration sensor 38. The acceleration sensor 38 is provided on the load-bearing bearing 23 and the power transmission device. The acceleration sensor 38 can be used to collect vibration information of the load-bearing bearing 23 and the power transmission device. Specifically, when the load-bearing bearing 23 and the power transmission device fail, their performance will be greatly reduced, and the load-bearing bearing 23 and the power transmission device will have periodic pulse signals representing the fault during operation. The acceleration sensor 38 can be used to obtain the periodic signal, analyze and process the signal data, and thus diagnose the fault of the bearing and the power transmission device.

[0045] Specifically, there can be multiple load-bearing bearings 23, and the multiple load-bearing bearings 23 can include bearings with different fault types, bearings without fault types, and bearings with different fault degrees. Therefore, by conducting experimental tests on load-bearing bearings 23 with multiple fault types and degrees, the fault type and cause of the load-bearing bearing 23 can be analyzed and determined, and the service life of the load-bearing bearing 23 can be predicted, so as to provide fault diagnosis and life prediction data for the bearings of the belt conveyor in actual working conditions, reduce the unnecessary downtime and maintenance time of the belt conveyor, and improve work efficiency. Optionally, the outer diameter of the load-bearing shaft 22 can be 35 mm, which can withstand radial loads and torque loads, and the load-bearing bearing 23 can be a roller bearing, wherein the load-bearing bearing 23 has a bearing seat, and the bearing seat can be a split bearing seat to facilitate the replacement of the load-bearing bearing 23.

[0046] Optionally, the signal acquisition device further includes a vibration signal acquisition instrument 34, which is connected to an acceleration sensor 38 for collecting vibration signals of the load-bearing bearing 23 and the belt conveyor transmission simulation device. Thus, the vibration signal data of the load-bearing bearing 23 and the power transmission device can be acquired through the acceleration sensor 38 in combination with the vibration signal acquisition instrument 34. The vibration signal acquisition instrument 34 can be connected to a computer 6, and the collected vibration signal data can be analyzed and judged by the computer 6, so as to obtain the cause and type of the failure of the power transmission device and the load-bearing bearing 23, so as to timely and correctly diagnose various abnormal conditions or failure conditions of the bearings and gears of the belt conveyor, and prevent or eliminate the failure.

[0047] Optionally, when the gear transmission device 21 is connected between the driving device 1 and the power bearing device, the signal acquisition device includes an oil detection device 35, and the oil detection device 35 is connected to the gear transmission device 21 to detect the oil state of the gear transmission device 21. Figure 1As shown, the oil detection device 35 includes an oil analyzer 351, a hydraulic pump 352 and an oil pipeline 353, and the oil pipeline 353 is connected between the oil analyzer 351, the hydraulic pump 352 and the gear transmission device 21 for oil transmission. An oil circulation system can be formed between the hydraulic pump 352 and the oil pipeline 353 and the gear transmission device 21, and the oil analyzer 351 is connected between the hydraulic pump 352 and the gear transmission device 21 through the oil pipeline 353. The oil health status of the gear transmission device 21 can be collected through the oil analyzer 351 to provide oil information data for fault judgment of the gear transmission device 21.

[0048] In some embodiments of the present invention, the loading device further includes a vibration exciter 37, which is used to generate a vibration signal to simulate noise interference in actual working conditions. The vibration exciter 37 can generate an irregular vibration signal, so that the noise interference of the belt conveyor during operation in actual working conditions can be simulated for the belt conveyor fault simulation detection system 100 through the vibration exciter 37. The belt conveyor fault simulation detection system 100 also includes a test bench 4, on which the drive device 1, the belt conveyor transmission simulation device, the loading device and the signal acquisition device are located, and the vibration exciter 37 is installed on the test bench 4. The vibration exciter 37 causes the test bench 4 to generate an irregular vibration signal to simulate noise interference in actual working conditions.

[0049] A belt conveyor fault simulation detection system 100 according to a specific example of the present invention will be described below with reference to the accompanying drawings.

[0050] like Figure 1 As shown, the belt conveyor fault simulation detection system 100 according to an embodiment of the present invention may include a driving device 1, a belt conveyor transmission simulation device, a loading device, a signal acquisition device and a test bench 4.

[0051] The driving device 1 includes a frequency converter 122, a programmable logic controller 121 and a driving motor 11. A variety of speed control programs can be written through the programmable logic controller 121. The frequency converter 122 drives the driving motor 11 to achieve different power output modes, and control the start, stop, constant speed and variable speed of the belt conveyor in simulated actual working conditions. The programmable logic controller 121 can be connected to the computer 6.

[0052] The belt conveyor transmission simulation device includes a power transmission device and a power bearing device, wherein the power transmission device may include a gear transmission device 21 and a synchronous belt transmission device, the power bearing device may include a bearing shaft 22 and a bearing bearing 23 arranged on a bearing bearing 23, wherein the gear transmission device 21 may be a gear box, and the output and input shaft wheelbases of the synchronous belt transmission device and the gear transmission device are the same, so that an equi-interchangeable arrangement may be adopted to select the installation of the synchronous belt transmission device or the gear transmission device 21 according to experimental needs, wherein the gear transmission device 21 may be used for conventional fault diagnosis, such as broken teeth, pitting, wear and bonding of gears, and the synchronous belt transmission device is used for degradation experiments, i.e., degradation experiments and fault diagnosis of the wear of the bearing bearing 23.

[0053] The load-bearing shaft 22 can bear radial load and torque load, and the load-bearing bearing 23 is used to support the rotation of the load-bearing shaft 22. Furthermore, the load-bearing bearing 23 can be a roller bearing, and the load-bearing bearing 23 has a bearing seat, and the bearing seat can be a spherical bearing seat.

[0054] The loading device includes a hydraulic device 33, a magnetic powder vibrator and an exciter 37, wherein the hydraulic device 33 can be used to apply a radial load to the bearing shaft 22. The magnetic powder vibrator can be used to apply a torque load to the bearing shaft 22, and the exciter 37 can make the test bench 4 generate an irregular vibration signal to simulate noise interference in actual working conditions.

[0055] The signal acquisition device includes a torque sensor 31, a tension sensor 32, a vibration signal collector 34, an oil sample analyzer 351 and a computer 6, wherein the torque sensor 31 is arranged between the drive motor 11 and the power transmission device, and can collect the output shaft torque of the drive motor 11 during operation; the tension sensor 32 is located between the load-bearing shaft 22 and the hydraulic loading device and can be used to collect the radial load on the load-bearing shaft 22; the acceleration sensor 38 can be arranged on the gear box and the load-bearing bearing 23, and combined with the vibration signal collector 34, it can collect the vibration signals of the bearings and gears in the fault; the oil analyzer can detect the health status of the oil in the gear transmission device 21; the computer 6 can be used to collect and store individual sensor signal data, and analyze the collected signal data to determine the fault type and cause of the gear box and the load-bearing bearing 23.

[0056] The components may be connected by a coupling 5 to achieve power transmission between the components. For example, the drive motor 11 and the power transmission device may be connected by a coupling 5. Two couplings 5 ​​may be provided between the drive motor 11 and the power transmission device, and the two couplings 5 ​​are respectively connected to the two ends of the torque sensor 31. The power transmission device and the load-bearing shaft 22 and the load-bearing shaft 22 and the brake 36 may be connected by a coupling 5. For the coupling 5, a plum blossom coupling 5 may be selected.

[0057] Therefore, according to the belt conveyor fault simulation detection system 100 of the embodiment of the present invention, the brake 36, the hydraulic device 33 and the exciter 37 can provide torque load, radial load and noise interference to simulate the load loading and noise loading of the belt conveyor in the actual working condition. The signal data collected in different working conditions can be detected by each sensor, and the fault type and cause of each component can be diagnosed by analyzing and judging the signal data. When performing a conventional fault judgment experiment, the gear transmission device 21 is connected between the drive motor 11 and the load-bearing shaft 22. The gear transmission device 21 is the reducer of the belt conveyor in the actual working condition. At this time, the fault type and cause of the gear can be determined by analyzing the signal data collected by each sensor, which can provide basic diagnostic data for the fault of the reducer of the belt conveyor in the actual working condition. At this time, the fault type and degree of the load-bearing bearing 23 can also be analyzed and diagnosed. When performing degradation experiments, the gear transmission can be disassembled, and a synchronous belt transmission device can be installed at the same position. The drive motor 11 transmits power to the load-bearing shaft 22 through the synchronous belt transmission device. The load-bearing bearing 23 is installed and connected to the load-bearing shaft 22 to support the rotation of the load-bearing shaft 22. The load-bearing bearing 23 includes bearings with different fault types and different fault degrees. By installing bearings with different fault types and different fault degrees on the load-bearing shaft 22, the load-bearing shaft 22 rotates to rotate the load-bearing bearing 23. The vibration signal data of the load-bearing bearing 23 is collected according to the acceleration sensor 38 and the vibration signal collector 34. The fault type and fault degree of the bearing can be determined by analyzing the vibration signal data, thereby providing fault judgment data for the bearing in the actual working condition of the belt conveyor. Therefore, when the gear transmission device 21 is connected between the load-bearing shaft 22 and the drive motor 11, it can be used for fault analysis and diagnosis of gears and bearings. When the synchronous belt transmission device is connected between the load-bearing shaft 22 and the drive motor 11, it can be used for fault analysis and diagnosis of bearings and degradation analysis experiments.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A belt conveyor fault simulation detection system, It is characterized in that include: A driving device, the driving device is used to provide power output under different working conditions; A belt conveyor transmission simulation device, wherein the driving device is connected to the belt conveyor transmission simulation device to drive the belt conveyor transmission simulation device to operate; A loading device, the loading device is connected to the driving device and the belt conveyor transmission simulation device, and is used to apply a simulated load to the driving device and the belt conveyor transmission simulation device; A signal acquisition device, the signal acquisition device is used to collect signal data of the driving device, the belt conveyor transmission simulation device and the loading device, and analyze and judge the collected signal data; The belt conveyor transmission simulation device comprises a power transmission device and a power bearing device, wherein the power transmission device comprises a detachable gear transmission device and a synchronous belt transmission device, wherein the gear transmission device and the synchronous belt transmission device are switchably connected between the driving device and the power bearing device, and the input and output shafts of the gear transmission device and the synchronous belt transmission have the same wheelbase; The power bearing device is a bearing shaft, the loading device includes a brake, the end of the bearing shaft is connected to the brake, a plurality of bearing bearings are provided on the bearing shaft, the plurality of bearing bearings include bearings of different fault types, bearings of non-fault types and bearings of different fault degrees, the signal acquisition device includes an acceleration sensor, and the acceleration sensor is provided on the bearing bearing and the power transmission device.

2. The belt conveyor fault simulation detection system according to claim 1, It is characterized in that The driving device comprises a driving motor and an adjusting device for adjusting the driving motor to output power in different working conditions.

3. The belt conveyor fault simulation detection system according to claim 2, It is characterized in that The regulating device includes a frequency converter and a programmable logic controller. The programmable logic controller is used to write speed control programs for different working conditions. The programmable logic controller is connected to the frequency converter to control the drive motor to provide power output for different working conditions.

4. The belt conveyor fault simulation detection system according to claim 1, It is characterized in that The signal acquisition device comprises a torque sensor, and the torque sensor is arranged between the driving device and the belt conveyor transmission simulation device to detect the output torque between the driving device and the belt conveyor transmission simulation device.

5. The belt conveyor fault simulation detection system according to claim 1, It is characterized in that The brake is a magnetic powder brake.

6. The belt conveyor fault simulation detection system according to claim 1, It is characterized in that The loading device comprises a hydraulic device for applying a radial load to the load-bearing shaft.

7. The belt conveyor fault simulation detection system according to claim 6, It is characterized in that The hydraulic device comprises: an oil tank, a pump station, a hydraulic cylinder and an oil circuit connected among the oil tank, the pump station and the hydraulic cylinder.

8. The belt conveyor fault simulation detection system according to claim 6, It is characterized in that The signal acquisition device comprises a tension sensor, and the tension sensor is arranged between the hydraulic device and the load-bearing shaft to detect the radial load on the load-bearing shaft.

9. The belt conveyor fault simulation detection system according to claim 1, It is characterized in that The signal acquisition device further comprises a vibration signal acquisition instrument, which is connected to the acceleration sensor to acquire vibration signals of the load-bearing bearing and the power transmission device.

10. The belt conveyor fault simulation detection system according to claim 1, It is characterized in that When the gear transmission device is connected between the driving device and the power bearing device, the signal acquisition device includes an oil detection device, and the oil detection device is connected to the gear transmission device to detect the oil state of the gear transmission device.

11. The belt conveyor fault simulation detection system according to claim 10, It is characterized in that The oil detection device comprises an oil sample analyzer, a hydraulic pump and an oil pipeline, wherein the oil pipeline is connected between the oil sample analyzer, the hydraulic pump and the gear transmission device for oil transmission.

12. The belt conveyor fault simulation detection system according to claim 1, It is characterized in that The loading device also includes a vibration exciter, which is used to generate a vibration signal to simulate noise interference in actual working conditions.

13. The belt conveyor fault simulation detection system according to claim 12, It is characterized in that It also includes a test bench, the driving device, the belt conveyor transmission simulation device, the loading device and the signal acquisition device are located on the test bench, and the vibration exciter is installed on the test bench.

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