CN115639006B - Fault diagnosis experimental device for simulating first scraper conveyer of tunneling equipment - Google Patents
Fault diagnosis experimental device for simulating first scraper conveyer of tunneling equipment Download PDFInfo
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Abstract
The invention relates to a fault diagnosis experimental device for simulating a first scraper conveyer of tunneling equipment, and belongs to the technical field of fault diagnosis of the tunneling equipment. The device comprises a frame, a hydraulic power mechanism, a mechanical transmission mechanism and a control and sensor mechanism: the frame is a supporting main body part of the whole fault diagnosis experimental device, the hydraulic power mechanism is arranged on the inner side of the lower part of the frame and is used for providing a power source for the mechanical transmission mechanism, the mechanical transmission mechanism is arranged on the upper part of the frame and is used for being matched with the control and sensor mechanism to simulate fault diagnosis of the first scraper conveyor, and the control and sensor mechanism is used for providing a multi-measuring-point sensor and controlling the motion of the mechanical transmission mechanism. The invention can set the faults of the mechanical part, the hydraulic part and the electric part according to the actual working condition of the first scraper conveyor of the tunneling equipment, the sensor measuring points cover the mechanical part, the hydraulic part and the electric part, the deployment distribution is wide, the data types are various, and the invention can meet the fault diagnosis requirements of various types.
Description
Technical Field
The invention relates to the technical field of tunneling equipment fault diagnosis, in particular to a fault diagnosis experimental device for simulating a first scraper conveyer of tunneling equipment.
Background
At present, most coal mines still use hydraulic and electric jointly driven cantilever type tunneling equipment as main equipment for tunneling, and the level of mechanization, automation and intellectualization of the cantilever type tunneling equipment is the key for improving the tunneling efficiency. The working object of the tunneling equipment is a coal rock mass, the transportation part and the cutting part are subjected to the reaction force of the coal rock mass, so that the faults of hydraulic, mechanical, electrical and other accessories are easily caused, once the tunneling equipment is stopped due to the faults, the production stop of a tunneling working face is inevitably caused, and the tunneling efficiency, the production efficiency and the economy are seriously influenced. The transfer transportation link is also one of the main factors for limiting the tunneling speed, the capacity of a mechanized transportation operation line is exerted, the reliability of equipment is required to be guaranteed, and as the transportation system has a plurality of parts, the transportation system is easy to break down, the reliability is relatively low, any mechanism can directly influence the operation of the transportation system, and the tunneling operation is greatly influenced.
The first scraper conveyer of the tunneling equipment is used as a main conveying device of the tunneling equipment, and the conveying work of the first scraper conveyer of the tunneling equipment is realized by the mutual cooperation of a machine, electricity and liquid, so that the fault of the conveying function of the tunneling equipment in a mechanical mechanism, a hydraulic mechanism and an electrical mechanism can be reflected in the abnormal working state of the first scraper conveyer of the tunneling equipment.
Most of experimental devices of the first scraper conveyer of the existing tunneling equipment only conduct research on data of a single fault signal and a single measuring point aiming at a bearing and a gear of a mechanical mechanism and a motor of an electrical mechanism, and few experimental devices and research aiming at multi-fault multi-measuring point fusion fault data are needed.
Disclosure of Invention
In order to solve the technical problem, the invention provides a fault diagnosis experimental device for simulating a first scraper conveyer of tunneling equipment. The technical scheme is as follows:
the utility model provides a failure diagnosis experimental apparatus of first scraper conveyor of simulation tunnelling equipment, its includes frame, hydraulic power mechanism, mechanical transmission mechanism and control and sensor mechanism, wherein: the frame is a supporting main body part of the whole fault diagnosis experimental device, the hydraulic power mechanism is arranged on the inner side of the lower part of the frame and used for providing a power source for the mechanical transmission mechanism, the mechanical transmission mechanism is arranged on the upper part of the frame and used for being matched with the control and sensor mechanism to simulate fault diagnosis of the first scraper conveyer, and the control and sensor mechanism is used for providing a multi-point sensor and controlling the motion of the mechanical transmission mechanism.
Optionally, the rack is composed of 50 × 4 square pipe profiles, 6.3# U-shaped channel beams, 8# U-shaped channel beams, 10# U-shaped channel beams, 56 × 4 angle steel, 56 × 36 × 4 angle steel, 4mm steel plates, 10mm steel plates and universal casters, the 50 × 4 square pipe profiles, the 6.3# U-shaped channel beams, the 8# U-shaped channel beams, the 10# U-shaped channel beams, 56 × 4 angle steel, 56 × 36 × 4 angle steel, 4mm steel plates and 10mm steel plates are built by adopting a welding method, holes are drilled in a connecting part with the mechanical transmission mechanism for connecting bolts, and the universal casters are connected with the 10# U-shaped channel beams by adopting bolts.
Optionally, the hydraulic power mechanism includes an oil filling port, an oil tank, a three-phase asynchronous motor, a gear oil pump, an oil outlet filter, an overflow valve, an oil return filter, a pressure gauge, an oil path block, and a metal hydraulic pipe, the oil tank is used for storing hydraulic oil, the oil filling port is connected with the oil tank and used for filling the oil tank with hydraulic oil, the three-phase asynchronous motor is a driving element of the hydraulic power mechanism, the three-phase asynchronous motor is installed above the oil tank and directly connected with the gear oil pump to drive the gear oil pump to work, an oil inlet of the gear oil pump is connected with the oil tank through the metal hydraulic pipe, hydraulic oil enters the gear oil pump through the metal hydraulic pipe, an oil outlet of the gear oil pump is connected with an oil inlet of the oil outlet filter through the metal hydraulic pipe, an oil outlet of the oil outlet filter is directly connected with an oil inlet of the oil path block through the metal hydraulic pipe, a pressure control port of the oil path block is connected with the overflow valve, the overflow valve is connected with the pressure gauge and overflow pressure of the pressure gauge is adjusted through the pressure gauge, the oil outlet filter is connected in parallel with the metal hydraulic pipe between the oil outlet filter, the oil path block is communicated with the oil return block inside the oil return block, and the oil outlet of the oil path block is communicated with the oil block.
Optionally, the mechanical transmission mechanism is composed of a driving shaft device, a driven shaft device and a connecting device, the driving shaft device comprises a nylon hydraulic pipe, a 2-4-position electrified hydraulic proportional directional valve, a hydraulic motor, a planetary gear reducer, a reducer bracket, a rigid coupler, a deep groove ball bearing, a driving shaft, a long sleeve, a short sleeve and a chain wheel, the driven shaft device comprises a driven shaft, an encoder connector, an elastic coupler, an encoder bracket, the long sleeve, the deep groove ball bearing, the short sleeve and the chain wheel, and the connecting device comprises a special-shaped chain and a metal cross beam;
the driving shaft device is a power input device of the mechanical transmission mechanism, the 2-position 4 electrified liquid proportional reversing valve is installed on the 10mm steel plate of the rack, the P port of the 2-position 4 electrified liquid proportional reversing valve is connected with the oil outlet of the oil circuit block through the nylon hydraulic pipe, the A port of the 2-position 4 electrified liquid proportional reversing valve is connected with the oil inlet of the hydraulic motor through the nylon hydraulic pipe, the oil outlet of the hydraulic motor is connected with the B port of the 2-position 4 electrified liquid proportional reversing valve through the nylon hydraulic pipe, the oil drain port of the hydraulic motor is connected with the oil return port of the oil circuit block through the nylon hydraulic pipe, the 2-position 4 electrified liquid proportional reversing valve is a hydraulic system control element for controlling the motion logic of the hydraulic system execution element, and the hydraulic motor is a hydraulic system execution element and is used for providing power input for the driving shaft device, the hydraulic motor is directly connected with the planetary gear reducer, the planetary gear reducer is connected with the reducer support through a bolt, the reducer support is connected with the 8# U-shaped steel of the rack through a bolt, the output shaft of the planetary gear reducer is connected with the shaft end of the driving shaft through the rigid coupling to realize power transmission, the power input of the driving shaft simulates the power input mode of a first scraper conveyor of tunneling equipment, so the design is bilateral input, the hydraulic motor, the planetary gear reducer, the rigid coupling and the reducer support are symmetrically arranged on two sides of the driving shaft, the opening A of the 2-position 4-powered hydraulic proportional reversing valve is connected with the oil inlets of 2 hydraulic motors through the nylon hydraulic pipes, and a three-way part is used for shunting to supply hydraulic oil to the 2 hydraulic motors respectively, the driving shaft is of a simply supported beam structure, the deep groove ball bearings are used as supporting parts on two sides of the driving shaft, the deep groove ball bearings are connected with 6.3# U-shaped channel steel of the rack through bolts, 2 chain wheels are installed on the driving shaft, circumferential positioning of the 2 chain wheels is realized by using key connection, axial positioning among the 2 chain wheels is realized by using the long sleeve, and axial positioning between the chain wheels and the deep groove ball bearings is realized by using the short sleeve;
the driven shaft is arranged as a driven device of the mechanical transmission mechanism, the driven shaft is of a simply supported beam structure, the deep groove ball bearings are used as supporting parts on two sides, the deep groove ball bearings are connected with 6.3# U-shaped channel steel of the rack through bolts, 2 chain wheels are installed on the driven shaft, circumferential positioning of the 2 chain wheels is realized through key connection, axial positioning among the 2 chain wheels is realized through the long sleeve, axial positioning between the chain wheels and the deep groove ball bearings is realized through the short sleeve, the shaft end on one side of the driven shaft is subjected to threaded hole structural machining and is connected with the encoder connector through screws to realize shaft diameter conversion, the encoder connector is connected with the encoder through the elastic coupling to realize rotation speed measurement of the driven shaft, the encoder is connected with the encoder support through screws, and the encoder support is connected with the 6.3# U-shaped channel steel of the rack through bolts;
the connecting device is used for connecting the driving shaft device and the driven shaft device, and realizes that the driving shaft device drives the driven shaft device, 2 the special-shaped chains are respectively connected with the driving shaft device and 4 sprockets on the driven shaft device, 2 chain plates of the special-shaped chains are rectangular bulges and leave holes, threaded holes are formed in two end faces of the metal beam, the metal beam is connected with 2 chain plates of the special-shaped chains through screws, and the metal beam moves in a matched mode with a 4mm steel plate to achieve the purpose of simulating the running state of the first scraper conveyor of the tunneling equipment.
Optionally, the control and sensor mechanism includes a vibration sensor, a pressure sensor, a clamp ammeter, a 24V dc transformer, a data acquisition card and a PLC, the vibration sensor has 1 measurement point disposed on the reducer bracket, 1 measurement point disposed on the top surface of the gear oil pump, 2 measurement points disposed on the top surface of the 2 planetary reducer, 4 measurement points disposed on the top surfaces of the 4 deep groove ball bearing seats, the pressure sensor has 2 measurement points disposed at oil inlets of the 2 hydraulic motors respectively and connected in parallel to the nylon hydraulic pipe, the clamp ammeter has 3 measurement points disposed on the U, V and W three-phase leads of the three-phase asynchronous motor respectively, the 24V dc transformer inputs 220V ac and outputs 24V dc to supply power to the vibration sensor, the pressure sensor, the clamp ammeter and the PLC, the PLC controls the 2-to-4 energizing liquid proportional reversing valve to realize the control of the starting and braking of the hydraulic motors, the data acquisition card acquires signals from the vibration sensor, the pressure sensor and the PC ammeter and stores the signals to the 24 mm dc transformer and the PLC, and the data acquisition card is installed on the 24 mm dc transformer and the PLC.
Optionally, the hydraulic power mechanism further includes an armrest, and the armrest is connected to the oil tank.
All the optional technical schemes can be combined at will, and the structure after one-to-one combination is not explained in detail in the invention.
By means of the scheme, the invention has the following beneficial effects:
1. the invention provides a device capable of performing simulation experiment on fault types in the working process of the first scraper conveyer of the tunneling equipment by arranging the frame, the hydraulic power mechanism, the mechanical transmission mechanism and the control and sensor mechanism. The hydraulic power mechanism, the mechanical transmission mechanism and the control and sensor mechanism are arranged to be matched to simulate the faults of the mechanical part, the hydraulic part and the electrical part of the first scraper conveyer of the tunneling equipment, so that the faults are simulated according to the actual working condition of the first scraper conveyer of the tunneling equipment, and the fault diagnosis result is accurate and reliable.
2. The invention can be applied to a plurality of fault diagnosis methods. The invention can set single fault and comprehensive operation state of multiple faults by setting a hydraulic power mechanism, a mechanical transmission mechanism, a control and sensor and setting various types and quantity of sensors, and the measuring points of the sensors cover three parts of machinery, hydraulic pressure and electricity, are widely deployed and distributed, have various data types and can complete the data acquisition tasks required by fault diagnosis methods such as multi-mode information fusion and the like.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a perspective view of the housing of fig. 1.
Fig. 3 is a perspective view of the hydraulic power mechanism of fig. 1 from one perspective.
Fig. 4 is a perspective view of the hydraulic power mechanism of fig. 1 from another perspective.
Fig. 5 is a perspective view of the mechanical transmission mechanism of fig. 1.
Fig. 6 is a top view of fig. 5.
Fig. 7 is a cross-sectional view of the driveshaft apparatus of this invention.
Fig. 8 is a cross-sectional view of the driven shaft arrangement of the present invention.
FIG. 9 is a partially enlarged view of the driving shaft device of the present invention.
Fig. 10 is a partial enlarged view of the driven shaft device in the present invention.
In the figure: 1-frame, 2-hydraulic power mechanism, 3-mechanical transmission mechanism, 4-control and sensor mechanism, 31-driving shaft device, 32-driven shaft device, 33-connecting device, 101-50 x 4 square tube section bar, 102-6.3# U-shaped channel steel, 103-8# U-shaped channel steel, 104-10# U-shaped channel steel, 105-56 x 4 angle steel, 106-56 x 36 x 4 angle steel, 107-4mm steel plate, 108-10mm steel plate, 109-universal caster wheel, 201-oil injection port, 202-oil tank, 203-three-phase asynchronous motor, 204-gear oil pump, 205-oil outlet filter, 206-overflow valve, 207-oil return filter, 208-pressure gauge, 209-oil circuit block, 210-metal hydraulic pipe, the system comprises armrests-211, 401-vibration sensors, 402-pressure sensors, 403-clamp ammeters, 404-24V direct current transformers, 405-data acquisition cards, 406-PLC, 3101-nylon hydraulic pipes, 3102-2 bit 4 electrified liquid proportional reversing valves, 3103-hydraulic motors, 3104-planetary gear reducers, 3105-reducer supports, 3106-rigid couplings, 3107-deep groove ball bearings, 3108-driving shafts, 3109-long sleeves, 3110-short sleeves, 3111-chain wheels, 3201-driven shafts, 3202-encoder connectors, 3203-elastic couplings, 3204-encoders, 3205-encoder supports, 3301-special-shaped chains and 3302-metal cross beams.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, the experimental apparatus for diagnosing faults of the first scraper conveyer of the simulated tunneling equipment provided by the invention comprises a frame 1, a hydraulic power mechanism 2, a mechanical transmission mechanism 3 and a control and sensor mechanism, wherein: the frame 1 is a supporting main body part of the whole fault diagnosis experimental device, the hydraulic power mechanism 2 is arranged on the inner side of the lower part of the frame 1 and is used for providing a power source for the mechanical transmission mechanism 3, the mechanical transmission mechanism 3 is arranged on the upper part of the frame 1 and is used for being matched with the control and sensor mechanism to simulate fault diagnosis of the first scraper conveyer, the control and sensor mechanism 4 is used for controlling the movement of the mechanical transmission mechanism 3, and sensors are arranged on each measuring point of the fault diagnosis experimental device for simulating the first scraper conveyer of the tunneling equipment.
As shown in fig. 2, the rack 1 is composed of 50 × 4 square pipe profiles 101, 6.3# u-shaped channel sections 102, 8# u-shaped channel sections 103, 10# u-shaped channel sections 104, 56 × 4 angle steels 105, 56 × 36 × 4 angle steels 106, 4mm steel plates 107, 10mm steel plates 108 and universal casters 109 of different lengths, the 50 × 4 square pipe profiles 101, 6.3# u-shaped channel sections 102, 8# u-shaped channel sections 103, 10# u-shaped channel sections 104, 56 × 4 angle steels 105, 56 × 36 × 4 angle steels 106, 4mm steel plates 107 and 10mm steel plates 108 are built by welding and are drilled at the connecting parts with the mechanical transmission mechanism 3 for bolt connection, and the universal casters 109 are connected with the 10# u-shaped channel sections 104 by bolts. The provision of casters 109 provides flexibility and mobility to the present invention.
As shown in fig. 3 and 4, the hydraulic power mechanism 2 includes an oil filling port 201, an oil tank 202, a three-phase asynchronous motor 203, a gear oil pump 204, an oil outlet filter 205, an overflow valve 206, an oil return filter 207, a pressure gauge 208, an oil path block 209, and a metal hydraulic pipe 210, the oil tank 202 is used for storing hydraulic oil, the oil filling port 201 is connected to the oil tank 202 and is used for filling hydraulic oil into the oil tank 202, the three-phase asynchronous motor 203 is a driving element of the hydraulic power mechanism 2, the three-phase asynchronous motor 203 is mounted on the oil tank 202 and is directly connected to the gear oil pump 204 to drive the gear oil pump 204 to work, an oil inlet of the gear oil pump 204 is connected to the oil tank 202 through the metal hydraulic pipe 210, hydraulic oil enters the gear oil pump 204 through the metal hydraulic pipe 210, an oil outlet of the gear oil pump 204 is connected to an oil inlet of the oil outlet filter 205 through the metal hydraulic pipe 210, hydraulic pipe filtering hydraulic oil before entering the hydraulic system execution element is performed, protecting the hydraulic system execution element, prolonging the service life of the hydraulic system execution element, an oil outlet of the oil pump 205 is connected to the oil pump 205 through the metal hydraulic pipe 209, the metal hydraulic pipe 206 is connected to the oil outlet block 209, the oil pump 206 is connected to the overflow valve 206, the hydraulic system execution element, the hydraulic pressure control element is connected to the overflow valve 206, the hydraulic pressure control element 206 is connected to the hydraulic pressure control element, the hydraulic pressure control element 206, the hydraulic pressure control element, the overflow valve 206, the hydraulic pressure control element 206 is connected to the hydraulic pressure control element 206, the hydraulic oil passing through an execution element of a hydraulic system is filtered, the cleanliness of the hydraulic oil in the oil tank 202 is guaranteed, the oil outlet of the oil path block 209 is communicated with the oil inlet of the oil path block 209 inside the oil path block 209, and the oil return port of the oil path block 209 is communicated with the oil drain port of the oil path block 209 inside the oil path block 209.
The hydraulic power mechanism 2 is a power part of the invention, hydraulic oil is injected into an oil tank 202 from an oil injection port 201, a three-phase asynchronous motor 203 is driven by electric power to run, the three-phase asynchronous motor 203 drives an oil pump 204 to work, and the hydraulic oil is pumped out of the oil tank 202 and supplied to a hydraulic system. In order to ensure the cleanliness of the hydraulic system and the hydraulic oil in the oil tank 202, the hydraulic oil enters the hydraulic system from the oil tank 202 and is filtered by the oil outlet filter 205, and the hydraulic oil returns to the oil tank 202 from the hydraulic system and is filtered by the oil return filter 207. The pressure protection of the hydraulic system is realized by an overflow valve 206, and the overflow valve 206 is adjusted by reading of a pressure gauge 208 when controlling the pressure of the hydraulic system. Two passages are arranged in the oil path block 209, one passage is connected with an oil supply pipeline of a hydraulic system, the other passage is connected with an oil return pipeline of the hydraulic system, and the oil tank 202, the gear oil pump 204, the oil outlet filter 205, the overflow valve 206, the oil return filter 207, the pressure gauge 208 and the oil path block 209 in the hydraulic power part 2 are connected through a metal hydraulic pipe 210. The oil circuit block 209 has two paths, one is that the oil outlet is inside UNICOM with the oil inlet, and the other is that oil return opening and inside UNICOM of draining port.
As shown in fig. 5 to 10, the mechanical transmission mechanism 3 is composed of a driving shaft device 31, a driven shaft device 32 and a connecting device 33, the driving shaft device 31 includes a nylon hydraulic pipe 3101, a 2-position 4 energized hydraulic proportional directional valve 3102, a hydraulic motor 3103, a planetary gear reducer 3104, a reducer support 3105, a rigid coupling 3106, a deep groove ball bearing 3107, a driving shaft 3108, a long sleeve 3109, a short sleeve 3110 and a sprocket 3111, the driven shaft device 32 includes a driven shaft 3201, an encoder connector 3202, an elastic coupling ball bearing 3203, an encoder 3204, an encoder support 3205, the long sleeve 3109, the deep groove 3107, the short sleeve 3110 and the sprocket 3111, and the connecting device 33 includes a profiled chain 3301 and a metal cross beam 3302.
The driving shaft device 31 is a power input device of the mechanical transmission mechanism 3, the 2-position 4-conduction liquid proportional reversing valve 3102 is installed on the 10mm steel plate 108 of the frame 1, the port 3102P of the 2-position 4-conduction liquid proportional reversing valve 3102 is connected with the oil outlet of the oil circuit block 209 through the nylon hydraulic pipe 3101, the port 3102A of the 2-position 4-conduction liquid proportional reversing valve 3102 is connected with the oil inlet of the hydraulic motor 3103 through the nylon hydraulic pipe 3101, the oil outlet of the hydraulic motor 3103 is connected with the port 3102B of the 2-position 4-conduction liquid proportional reversing valve 3102 through the nylon hydraulic pipe 3101, the oil drain port of the hydraulic motor 3103 is connected with the oil return port of the oil circuit block 209 through the nylon hydraulic pipe 3101, the 2-position 4-conduction liquid proportional reversing valve 3102 is a hydraulic system control element for controlling the motion logic of the hydraulic system execution element, the hydraulic motor 3103 is an actuating element of a hydraulic system and is used for providing power input for the driving shaft device 31, the hydraulic motor 3103 is directly connected with the planetary gear reducer 3104 to realize the speed reduction transmission with the transmission ratio i =32, so that the operating speed of the mechanical transmission mechanism 3 reaches the required 48r/min, the planetary gear reducer 3104 is connected with the reducer support 3105 through bolts, the reducer support 3105 is connected with the 8# U channel steel 103 of the frame 1 through bolts, the output shaft of the planetary gear reducer 3104 is connected with the shaft end of the driving shaft 3108 through the rigid coupling 3106 to realize the power transmission, the power input of the driving shaft 3108 simulates the power input mode of a first scraper conveyor of the tunneling device, so the design is bilateral input, and the hydraulic motor 3103, the planetary gear reducer 3104, the rigid coupling 3106 and the reducer support 3105 are symmetrically arranged on two sides of the driving shaft 3108, when the port 3102A of the 2-position 4-way electric hydraulic proportional reversing valve 3102 is connected with the oil inlets of the 2 hydraulic motors 3103 through the nylon hydraulic pipe 3101, hydraulic oil is respectively supplied to the 2 hydraulic motors 3103 by shunting of a three-way part, the driving shaft 3108 is of a simple beam structure, the deep groove ball bearings 3107 are used as supporting parts on two sides, the deep groove ball bearings 3107 are connected with the 6.3# U-shaped channel steel 102 of the rack 1 through bolts, the driving shaft 3108 is provided with the 2 chain wheels 3111, the circumferential positioning of the 2 chain wheels 3111 is realized by key connection, the axial positioning of the 2 chain wheels 3111 is realized by the long sleeve 3109, and the axial positioning of the chain wheels 3111 and the deep groove 3107 is realized by the short sleeve 3110.
Specifically, the gear oil pump 204 pumps hydraulic oil out of the oil tank 202 to provide hydraulic oil required for power generation for the hydraulic motor 3103, the planetary reducer 3104 has a transmission ratio i =32, the input rotation speed of the driving shaft device 31 is reduced to reach the required rotation speed of 48r/min, the torque is increased, the power is transmitted backwards, the output power of the planetary reducer 3104 is transmitted to the driving shaft 3108 through the rigid coupling 3106, and the driving of the mechanical transmission mechanism 3 is completed.
The driven shaft device 32 is a driven device of the mechanical transmission mechanism 3, and has a structure similar to that of the driving shaft device 31, the driven shaft 3201 is a simple beam structure, the deep groove ball bearings 3107 are used as supporting parts on two sides of the driven shaft device, the deep groove ball bearings 3107 are connected with the 6.3# U-shaped channel steel 102 of the rack 1 through bolts, 2 chain wheels 3111 are mounted on the driven shaft 3201, the circumferential positioning of the 2 chain wheels 3111 is realized by using key connection, the axial positioning between the 2 chain wheels 3111 is realized by using the long sleeve 3109, the axial positioning between the chain wheels 3111 and the deep groove ball bearings 3107 is realized by using the short sleeve 3110, the 2 chain wheels 3111 of the driving shaft device 31 are aligned with the 2 chain wheels 3111 of the driven shaft device 32, the mounting height of the driven shaft device 32 is lower than that of the driving shaft device 31, and the plane where the driving shaft head 3208 and the driven shaft 3201 are located forms an included angle of 10 degrees with the horizontal plane, so as to simulate the actual arrangement position where the first scraper conveyor is equipped, and the driven shaft head 3202 is processed by using a screw 3101 side to process the shaft end structure and connect with the driving shaft encoder 3202; the device is characterized in that a threaded hole structure is machined at one side shaft end of the driven shaft 3201, the encoder connector 3202 is connected with the encoder 3204 through the elastic coupling 3203 to realize the conversion of the shaft diameter, the encoder connector 3202 is connected with the encoder 3204 through the elastic coupling 3203 to realize the measurement of the rotating speed of the driven shaft 3201, the encoder 3204 is connected with the encoder support 3205 through screws, and the encoder support 3205 is connected with the 6.3# U-shaped channel steel 102 of the rack 1 through bolts.
Further, the control and sensor mechanism comprises a vibration sensor 401, a pressure sensor 402, a clamp ammeter 403, a 24V dc transformer 404, a data acquisition card 405, and a PLC406, wherein the vibration sensor 401 has 1 measuring point deployed on a reducer support 3105, 1 measuring point deployed on the top surface of the gear oil pump 204, 2 measuring points deployed on the top surface of 2 planetary reducers 3104, 4 measuring points deployed on the top surfaces of 4 deep groove ball bearings 3107, the pressure sensor 402 has 2 measuring points deployed at oil inlets of 2 hydraulic motors 3103 respectively and connected in parallel on the nylon hydraulic pipe 3101, the clamp ammeter 403 has 3 measuring points deployed on the U, V, W three-phase lead wires of the three-phase asynchronous motor 203, the 24V dc transformer 404 inputs 220V alternating current and outputs 24V direct current, the vibration sensor 401, the pressure sensor 402, the clamp ammeter 403, and the PLC406 supply power to the vibration sensor 401, the pressure sensor 402, the clamp ammeter 403, and the PLC406, and the PLC 403 control the start the vibration sensor 401, the PLC 405, the PC 406 and the data acquisition card 404, and the PLC406 are installed on the power acquisition card 404, and the PC 404 and the data acquisition card 404 and the PC 406.
Optionally, the hydraulic mechanism 2 further includes an armrest 211, and the armrest 211 is connected to the oil tank 202 so as to push the hydraulic mechanism 2.
When the invention is operated, firstly, the three-phase asynchronous motor 203 is started, the gear oil pump 204 is driven to supply the hydraulic oil in the oil tank 202 to a hydraulic system; then, 220V ac power is supplied to the 24V dc transformer 404 to drive the control and sensor mechanism, and the PLC406 controls the 2-to-4 electro-hydraulic proportional directional valve 3102 to make the hydraulic motor 3103 supply power to the main drive shaft device 31 to operate the mechanical transmission mechanism 3; finally, the PC controls the data acquisition card 405 to acquire signals from the vibration sensor 401, the pressure sensor 402, and the clamp ammeter 403, thereby completing data acquisition in one state of the present invention. After data acquisition is completed, the PLC406 controls the 2-to-4 electro-hydraulic proportional reversing valve 3102 to stop the operation of the hydraulic motor 3103, then stops supplying power to the 24V dc transformer 404 to stop the operation of the control and sensor mechanism, and finally stops supplying power to the three-phase asynchronous motor 303 to stop the supply of power to the mechanical transmission mechanism 3 by the hydraulic power mechanism 2.
For the understanding of the present invention, the following examples are given to illustrate the specific use of the present invention:
for example, when a simulation of a mechanical part failure is performed, the following settings may be made: the bolt connection between the reducer bracket 3105 and the 8# U channel steel 103 of the frame 1 is loosened, and fault signal acquisition is carried out through the vibration sensor 401 and the data acquisition card 405 arranged at the accelerator bracket 3105; for another example: the bolt connection between the special-shaped chain 3301 and the metal beam 3302 can be arranged loosely, the failure that the scraper of the first scraper conveyor of the tunneling equipment is loosened with the chain is simulated, and the failure signal acquisition is carried out through the vibration sensor 401 and the data acquisition card 405 arranged on the deep groove ball bearing 3107.
For example, when performing simulation of a failure of an electrical part, the following settings may be made: the stator winding of the three-phase asynchronous motor 203 is cut off, the three-phase current of the stator winding is measured through three clamp-on ammeters 403 arranged on the stator winding, and fault signals are acquired through a data acquisition card 405.
For example, when performing the simulation of the hydraulic section failure, the following settings may be made: micro-damage is carried out on the internal structure of the hydraulic motor 3103, and fault signals are acquired through the vibration sensor 401 and the data acquisition card 405 arranged at the top of the hydraulic motor 3103; for another example: an O-shaped sealing ring inside a nylon hydraulic pipe 3101 connected with an oil inlet of a hydraulic motor 3103 is damaged, an oil seepage fault of a hydraulic system of a first scraper conveyor of tunneling equipment is simulated, and a fault signal is acquired through a pressure sensor 402 and a data acquisition card 405.
The invention simplifies the structure according to the working principle of the first scraper conveyer of the tunneling equipment and improves the fault diagnosis economy. Meanwhile, the invention can simultaneously set the faults of a mechanical part, a hydraulic part and an electric part according to the actual working condition of the first scraper conveyor of the tunneling equipment, the measuring points of the sensor cover the mechanical part, the hydraulic part and the electric part, the deployment distribution is wide, the data types are various, the fault diagnosis requirement of single fault single measuring point data can be met, the data acquisition tasks required by fault diagnosis methods such as multi-fault multi-mode information fusion and the like can be completed, compared with the limitation that the current fault diagnosis experimental device only aims at single fault single measuring point of the motor fault of the mechanical part, the gear or the electric part, the invention has the advantages of innovation, universality and expandability.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (2)
1. The utility model provides a failure diagnosis experimental apparatus of first scraper conveyor of simulation tunnelling equipment which characterized in that, includes frame (1), hydraulic power unit (2), mechanical transmission mechanism (3) and control and sensor mechanism, wherein: the rack (1) is a supporting main body part of the whole fault diagnosis experimental device, the hydraulic power mechanism (2) is arranged on the inner side of the lower part of the rack (1) and is used for providing a power source for the mechanical transmission mechanism (3), the mechanical transmission mechanism (3) is arranged on the upper part of the rack (1) and is used for being matched with the control and sensor mechanism to simulate fault diagnosis of the first scraper conveyer, and the control and sensor mechanism is used for providing a multi-point sensor and controlling the motion of the mechanical transmission mechanism (3);
the frame (1) is composed of 50 × 4 square pipe profiles (101), 6.3 × U-shaped channel steels (102), 8 × U-shaped channel steels (103), 10 × U-shaped channel steels (104), 56 × 4 angle steels (105), 56 × 36 × 4 angle steels (106), 4mm steel plates (107), 10mm steel plates (108) and universal casters (109) with different lengths, the 50 × 4 square pipe profiles (101), 6.3 × U-shaped channel steels (102), 8 × U-shaped channel steels (103), 10 × U-shaped channel steels (104), 56 × 4 angle steels (105), 56 × 36 × 4 angle steels (106), 4mm steel plates (107) and 10mm steel plates (108) are built by adopting a welding method and are drilled at the connecting parts of the mechanical transmission mechanism (3) for bolt connection, and the universal casters (109) are connected with the 10 × U-shaped channel steels (104) by bolts;
the hydraulic power mechanism (2) comprises an oil filling port (201), an oil tank (202), a three-phase asynchronous motor (203), a gear oil pump (204), an oil outlet filter (205), an overflow valve (206), an oil return filter (207), a pressure gauge (208), an oil path block (209) and a metal hydraulic pipe (210), wherein the oil tank (202) is used for storing hydraulic oil, the oil filling port (201) is connected with the oil tank (202) and used for filling the oil tank (202) with hydraulic oil, the three-phase asynchronous motor (203) is a motive power part of the hydraulic power mechanism (2), the three-phase asynchronous motor (203) is installed on the oil tank (202) and directly connected with the gear oil pump (204) to drive the gear oil pump (204) to work, an oil inlet of the gear oil pump (204) is connected with the oil tank (202) through the metal hydraulic pipe (210), the hydraulic oil enters the gear oil pump (204) through the metal hydraulic pipe (210), an oil outlet of the gear oil pump (204) is connected with an oil inlet of the oil outlet filter (205) through the metal hydraulic pipe (210), and an oil inlet of the overflow valve (209) is connected with the metal hydraulic pipe (206), the overflow valve (206) is connected with the pressure gauge (208), the overflow pressure of the overflow valve is observed and adjusted through the pressure gauge (208), the pressure gauge (208) is connected in parallel to a metal hydraulic pipe (210) between the oil outlet filter (205) and the overflow valve (206), an oil drain port of the oil circuit block (209) is connected with the oil return filter (207) through the metal hydraulic pipe (210), an oil outlet of the oil circuit block (209) is communicated with an oil inlet of the oil circuit block (209) inside the oil circuit block (209), and an oil return port of the oil circuit block (209) is communicated with an oil drain port of the oil circuit block (209) inside the oil circuit block (209);
the mechanical transmission mechanism (3) consists of a driving shaft device (31), a driven shaft device (32) and a connecting device (33), wherein the driving shaft device (31) comprises a nylon hydraulic pipe (3101), a 2-position 4-electrified hydraulic proportional reversing valve (3102), a hydraulic motor (3103), a planetary gear reducer (3104), a reducer support (3105), a rigid coupling (3106), a deep groove ball bearing (3107), a driving shaft (3108), a long sleeve (3109), a short sleeve (3110) and a chain wheel (3111), the driven shaft device (32) comprises a driven shaft (3201), an encoder connector (3202), an elastic coupling (3203), an encoder (3204), an encoder support (3205), the long sleeve (3109), the deep groove ball bearing (3107), the short sleeve (3110) and the chain wheel (3111), and the connecting device (33) comprises a chain (3301) and a metal beam (3302);
the driving shaft device (31) is a power input device of the mechanical transmission mechanism (3), the 2 th 4-position electrified hydraulic proportional reversing valve (3102) is installed on the 10mm steel plate (108) of the frame (1), the 2 th 4-position electrified hydraulic proportional reversing valve (3102) P port is connected with the oil outlet of the oil path block (209) through the nylon hydraulic pipe (3101), the 2 th 4-position electrified hydraulic proportional reversing valve (3102) A port is connected with the oil inlet of the hydraulic motor (3103) through the nylon hydraulic pipe (3101), the oil outlet of the hydraulic motor (3103) is connected with the 2 th 4-position electrified hydraulic proportional reversing valve (3102) B port through the nylon hydraulic pipe (3101), the oil drain port of the hydraulic motor (3103) is connected with the oil return port of the oil path block (209) through the nylon hydraulic pipe (3101), the 2 th 4-position electrified hydraulic proportional reversing valve (3102) is a hydraulic control element of a hydraulic system, the motion logic of the hydraulic system executive element is controlled, the hydraulic motor (3103) is used for connecting the hydraulic motor support (3105) through the planetary reducer support (3105), the hydraulic reducer (3105) is directly connected with the driving shaft support (3105), and the hydraulic motor support (3104) is directly connected with the planetary reducer support (3105) through the planetary reducer support (3105), the output shaft of the planetary gear reducer (3104) is connected with the shaft end of the driving shaft (3108) through the rigid coupling (3106) to realize power transmission, the power input of the driving shaft (3108) simulates a power input mode of a first scraper conveyor of a tunneling device, so the design is bilateral input, when the hydraulic motor (3103), the planetary gear reducer (3104), the rigid coupling (3106) and the reducer support (3105) are symmetrically installed on two sides of the driving shaft (3108), the opening A of the 2-position 4-powered hydraulic proportional reversing valve (3102) is connected with the oil inlets of 2 hydraulic motors (3103) through the nylon hydraulic pipe (3101), a tee part is used for shunting to supply hydraulic oil to the 2 hydraulic motors (3103), the driving shaft (3108) is of a simply supported beam structure, the deep groove ball bearings (3107) are used on two sides as supporting parts, the deep groove ball bearings (3107) are connected with the 6.3# U-shaped chain wheels (102) of the frame (1) through bolts, the driving shaft (3108) is provided with 2) and the chain wheels (3111), the axial keys are used for realizing the positioning of the long chain wheels (3110) and the positioning of the long chain wheels (3111) is realized through the sleeve 3117) and the long chain wheels (3110;
the driven shaft device (32) is a driven device of the mechanical transmission mechanism (3), the driven shaft (3201) is of a simply supported beam structure, the deep groove ball bearings (3107) are used as supporting parts on two sides of the driven shaft (3201), the deep groove ball bearings (3107) are connected with 6.3# U-shaped channel steel (102) of the rack (1) through bolts, 2 chain wheels (3111) are mounted on the driven shaft (3201), circumferential positioning of the 2 chain wheels (3111) is realized by key connection, axial positioning between the 2 chain wheels (3111) is realized by using the long # sleeve (3109), axial positioning between the chain wheels (3111) and the deep groove ball bearings (3107) is realized by using the short sleeve (3110), the shaft diameter conversion is realized by performing threaded hole structure processing on one side of the driven shaft (3201) and connecting the encoder connector (3202) through bolts, the encoder connector (3202) is connected with the driven shaft encoder (3204) through the elastic coupling (3203), the rotating speed measurement of the driven shaft end (3201) is realized, and the rotating speed support of the driven shaft (3204) is connected with the rack (3205) through the U-shaped channel steel (3205) and the encoder (3205);
the connecting device (33) is used for connecting the driving shaft device (31) and the driven shaft device (32) to realize transmission of the driving shaft device (31) to the driven shaft device (32), 2 special-shaped chains (3301) are respectively connected with the driving shaft device (31) and 4 chain wheels (3111) on the driven shaft device (32), chain plates of the 2 special-shaped chains (3301) are rectangular in protrusion and provided with holes, threaded holes are formed in two end faces of the metal cross beam (3302), the metal cross beam (3302) is connected with the chain plates of the 2 special-shaped chains (3301) through screws, and the metal cross beam (3302) is matched with the 4mm steel plate (107) to move so as to achieve the purpose of simulating the operation state of a first scraper conveyor of the tunneling equipment;
the control and sensor mechanism comprises a vibration sensor (401), a pressure sensor (402), a pincerlike ammeter (403), a 24V direct current transformer (404), a data acquisition card (405) and a PLC (406), wherein the vibration sensor (401) has 1 measuring point deployed on a reducer bracket (3105), 1 measuring point deployed on the top surface of the gear oil pump (204), 2 measuring points deployed on the top surfaces of 2 planetary reducers (3104), 4 measuring points deployed on the top surfaces of 4 deep groove ball bearings (3107), the pressure sensor (402) has 2 measuring points deployed at oil inlets of 2 hydraulic motors (3103) and connected in parallel on a nylon hydraulic pipe (3101), the pincerlike ammeter (403) has 3 measuring points deployed on three-phase lead wires of U, V and W of the three-phase asynchronous motor (203), the 24V direct current transformer (404) inputs 220V alternating current, outputs 24V direct current, the vibration sensor (401), the pressure sensor (402), the pincerlike ammeter (403) and the power supply valve (403) and the PLC (406) and starts the PLC (406) to control the hydraulic motor (401, the PLC (405) and start the proportional control signal acquisition of the hydraulic motor (3102) and the PLC (405) and the PLC (406), the 24V direct current transformer (404), the data acquisition card (405) and the PLC (406) are all installed on the 10mm steel plate (108).
2. The failure diagnosis experimental device for the first scraper conveyor of the simulated tunneling equipment according to claim 1, characterized in that the hydraulic power mechanism (2) further comprises a handrail (211), and the handrail (211) is connected with the oil tank (202).
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| JP3699591B2 (en) * | 1998-05-12 | 2005-09-28 | 新日本製鐵株式会社 | Equipment diagnosis method and apparatus for belt conveyor |
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| CN111620071A (en) * | 2020-05-25 | 2020-09-04 | 中煤科工集团上海有限公司 | Belt conveyor fault simulation detection system |
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| CN103434816A (en) * | 2013-08-07 | 2013-12-11 | 太原理工大学 | Chain state monitoring and protecting system for scraper conveyor |
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