CN113990140B - Fault simulation system of rotary machine - Google Patents
Fault simulation system of rotary machine Download PDFInfo
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- CN113990140B CN113990140B CN202111321372.0A CN202111321372A CN113990140B CN 113990140 B CN113990140 B CN 113990140B CN 202111321372 A CN202111321372 A CN 202111321372A CN 113990140 B CN113990140 B CN 113990140B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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Abstract
The invention relates to a fault simulation system of rotary machinery, which comprises a driving device, a fault simulation platform, a load device and a control acquisition system, wherein the driving device is connected with the load device; the driving device comprises two driving pieces and a gear box, wherein the two driving pieces are respectively and fixedly connected with two input ends of the gear box so as to respectively drive the two input ends of the gear box to rotate, the output end of the gear box is fixedly connected with the input end of the fault simulation platform, and the output end of the fault simulation platform is fixedly connected with the load device; the control acquisition system is respectively and electrically connected with the two driving parts and the load device so as to respectively control the output rotating speed and the output torque of the two driving parts and the output load of the load device, and is also used for acquiring the motion state data of the fault simulation platform. In the use process, the acquisition system can be controlled to control the torque and the rotating speed output by the driving device and the output load of the load device so as to simulate the rotary machine under various working conditions.
Description
Technical Field
The invention relates to the technical field of experimental devices, in particular to a fault simulation system of rotary machinery.
Background
The rotary machine is widely applied to the modern industrial fields of electric power, aerospace, metallurgy, wind power generation, nuclear power generation, national defense and the like. With the development of mechanical equipment towards high speed, heavy load and precision, the requirements of people on the safety, stability, reliability and other performances of the mechanical equipment are continuously improved.
Because the running state of the rotary machine has a critical influence on the safety operation of the mechanical equipment, the working environment of most mechanical equipment is severe, and the rotary machine is subjected to the actions of various alternating loads and impacts in the working process, so that faults are very easy to occur. Therefore, it is necessary to build a fault simulation test platform of the rotary machine to study faults of key components in the rotary machine.
Because the driving force of the existing rotary machine fault simulation platform is usually provided by a single rotary driving piece, and the single rotary driving piece can only output set rotating speed or torque, the existing rotary machine fault simulation platform can only simulate the rotary machine under a single working condition, and the actual condition of the operation of mechanical equipment cannot be well reproduced.
Therefore, a fault simulation system for a rotary machine is needed to solve the problem that the conventional fault simulation platform for the rotary machine can only simulate the rotary machine under a single working condition.
Disclosure of Invention
In view of the foregoing, it is necessary to provide a fault simulation system for a rotary machine, so as to solve the problem that the conventional fault simulation platform for a rotary machine can only simulate the rotary machine under a single working condition.
The invention provides a fault simulation system of rotary machinery, which comprises a driving device, a fault simulation platform, a load device and a control acquisition system, wherein the driving device is connected with the load device;
The driving device comprises two driving pieces and a gear box, the gear box is provided with two input ends, the two driving pieces are respectively and fixedly connected with the two input ends of the gear box so as to respectively drive the two input ends of the gear box to rotate, the output end of the gear box is fixedly connected with the input end of the fault simulation platform, and the output end of the fault simulation platform is fixedly connected with the load device;
The control acquisition system is respectively and electrically connected with the two driving pieces and the load device so as to respectively control the output rotating speed and the output torque of the two driving pieces and the output load of the load device, and the control acquisition system is also used for acquiring the motion state data of the fault simulation platform.
Further, the fault simulation platform comprises a shell, a first rotating shaft, two transmission gears, two gear fault simulation modules and a switching mechanism, wherein the output end of the gear box is fixedly connected with the input end of the first rotating shaft, the first rotating shaft is rotationally connected with the shell, and the output end of the first rotating shaft is fixedly connected with the load device;
the two transmission gears are sleeved on the first rotating shaft at intervals and are respectively connected with the first rotating shaft in a rotating way, and the transmission gears are in one-to-one correspondence with the gear fault simulation modules and meshed with the gear fault simulation modules;
The switching mechanism can enable the two transmission gears to be in a first state or a second state respectively, when the transmission gears are in the first state, the transmission gears can rotate relative to the first rotating shaft, and when the transmission gears are in the second state, the transmission gears and the first rotating shaft are limited;
The control acquisition system is used for acquiring the motion state data of the two gear fault simulation modules.
Further, the switching mechanism comprises two groups of switching components, and the switching components are in one-to-one correspondence with the transmission gears;
The switching assembly comprises a limiting piece and a sleeve, the limiting piece and the sleeve are sleeved on the first rotating shaft at intervals, the side face of the limiting piece is fixedly connected with the side face of the transmission gear, the sleeve is connected with the first rotating shaft in a sliding mode and can rotate along with the first rotating shaft, and a limiting groove matched with the limiting piece is formed in the sleeve;
The sleeve can be slid so that the sleeve is in a first position or a second position, when the sleeve is in the first position, the sleeve is separated from the limiting piece, and when the sleeve is in the second position, the sleeve is limited by the limiting piece.
Furthermore, the fault simulation platform further comprises a bearing fault simulation module, an input shaft of the bearing fault simulation module is detachably connected with an output shaft of any gear fault simulation module, and the control acquisition system is further used for acquiring motion state data of the bearing fault simulation module.
Further, the gear fault simulation module comprises a fault gear, a second rotating shaft and a gear installation seat, one end of the second rotating shaft is rotationally connected with the shell, the other end of the second rotating shaft is rotationally connected with the gear installation seat, the fault gear is sleeved on the second rotating shaft and fixedly connected with the second rotating shaft, and the fault gear is meshed with the transmission gear.
Further, the bearing fault simulation module comprises a fault bearing, a third rotating shaft and a bearing mounting seat, one end of the third rotating shaft is detachably connected with one end of the second rotating shaft, an inner ring of the fault bearing sleeve is arranged on the third rotating shaft and fixedly connected with the third rotating shaft, and the bearing mounting seat is sleeved outside the fault bearing and fixedly connected with an outer ring of the fault bearing.
Further, the fault simulation platform further comprises a split coupler, and one end of the third rotating shaft is detachably connected with one end of one second rotating shaft through the split coupler.
Further, the control acquisition system comprises an industrial personal computer, a PLC module, a motion control system and an analog acquisition system;
the industrial personal computer is electrically connected with the PLC module, the PLC module is electrically connected with the motion control system and the analog quantity acquisition system, and the industrial personal computer is used for respectively controlling the output rotating speed and the output torque of the two driving parts and controlling the output load of the load device through the PLC module and the motion control system;
The industrial personal computer is also used for acquiring the motion state data of the two gear fault simulation modules and the bearing fault simulation module through the PLC module and the analog quantity acquisition system.
Further, the motion control system comprises a motion control module, two servo drivers and a tension controller;
The PLC module is electrically connected with the motion control module, the motion control module is electrically connected with the two driving parts through the two servo drivers respectively to control the output rotating speed and the output torque of the two driving parts respectively, and the motion control module is also electrically connected with the load device through the tension controller to control the output load of the load device.
Further, the analog quantity acquisition system comprises an analog quantity acquisition module, an acceleration sensor and a displacement sensor;
The PLC module is electrically connected with the acceleration sensor and the displacement sensor through the analog quantity acquisition module, so that acceleration data of the two gear fault simulation modules and the bearing fault simulation module are acquired through the acceleration sensor, and displacement data of an input shaft of the bearing fault simulation module and an output shaft of the gear fault simulation module connected with the bearing fault simulation module are acquired through the displacement sensor.
Compared with the prior art, the invention provides a fault simulation system of a rotary machine, which comprises a fault simulation platform, a driving device and a load device which are respectively and fixedly connected with the input end and the output end of the fault simulation platform, and a control acquisition system which is electrically connected with the driving device and the load device. In the actual use process, a worker can control the torque and the rotating speed output by the driving device and the output load of the load device through the control acquisition system, and collect the motion state data of the fault simulation platform through the control acquisition system, so that the rotating machinery under various working conditions is simulated.
Drawings
FIG. 1 is a schematic diagram of a fault simulation system for a rotary machine according to a preferred embodiment of the present invention;
FIG. 2 is a block diagram of a preferred embodiment of a control acquisition system in a fault simulation system for a rotary machine according to the present invention;
FIG. 3 is a schematic diagram of a fault simulation platform in a fault simulation system of a rotary machine according to a preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of a preferred embodiment of a first shaft, a transmission gear and a switching mechanism in a fault simulation system of a rotary machine according to the present invention;
FIG. 5 is a schematic diagram of a gear fault simulation module in a fault simulation system of a rotary machine according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a bearing fault simulation module in a fault simulation system of a rotary machine according to an embodiment of the present invention;
FIG. 7 is an exploded view of a preferred embodiment of a split coupling in a fault simulation system for a rotary machine according to the present invention;
FIG. 8 is a block diagram of a preferred embodiment of a motion control system in a fault simulation system for a rotary machine according to the present invention;
Fig. 9 is a block diagram of a preferred embodiment of an analog acquisition system in a fault simulation system for a rotary machine according to the present invention.
In the figure: 1. the driving device, 11, driving piece, 12, gear box, 2, fault simulation platform, 21, shell, 22, first rotating shaft, 23, transmission gear, 24, gear fault simulation module, 241, fault gear, 242, second rotating shaft, 243, gear mounting seat, 25, switching mechanism, 251, switching component, 2511, limiting piece, 2512, sleeve, 2513, shift fork, 26, bearing fault simulation module, 261, fault bearing, 262, third rotating shaft, 263, bearing mounting seat, 27, split coupling, 271, half coupling, 272, fastener, 273, limiting bar, 3, load device, 4, control acquisition system, 41, industrial personal computer, 42, PLC module, 43, motion control system, 431, motion control module, 432, clothes driver, 433, tension controller, 44, analog acquisition system, 441, analog acquisition module, 442, acceleration sensor, 443, displacement sensor, 45, control button module, 46, and indication module.
Detailed Description
The following detailed description of preferred embodiments of the application is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the application, are used to explain the principles of the application and are not intended to limit the scope of the application.
Referring to fig. 1 and 2, the present invention provides a fault simulation system of a rotary machine, which includes a driving device 1, a fault simulation platform 2, a load device 3, and a control acquisition system 4.
The driving device 1 comprises two driving pieces 11 and a gear box 12, the gear box 12 is provided with two input ends, the two driving pieces 11 are respectively and fixedly connected with the two input ends of the gear box 12 so as to respectively drive the two input ends of the gear box 12 to rotate, and the output end of the gear box 12 is fixedly connected with the input end of the fault simulation platform 2 so as to provide driving force for the fault simulation platform 2. The output end of the fault simulation platform 2 is fixedly connected with the load device 3 so as to provide load for the fault simulation platform 2.
The control and acquisition system 4 is electrically connected to the two driving members 11, so as to control the output rotation speed and the output torque of the two driving members 11 (i.e. control the output rotation speed of one driving member 11 and control the output torque of the other driving member 11), so as to control the rotation speed and the torque of the driving force output by the driving device 1. The control acquisition system 4 is also electrically connected to the load device 3 to control the output load of the load device 3. In addition, the control acquisition system 4 is further configured to acquire motion state data of the fault simulation platform 2.
In the actual use process, a worker can control the torque and the rotating speed output by the driving device 1 and the output load of the load device 3 through the control acquisition system 4, and collect the motion state data of the fault simulation platform 2 through the control acquisition system 4, so that the rotating machinery under various working conditions is simulated, and the fault simulation platform 2 can better reproduce the actual running condition of mechanical equipment.
Referring to fig. 1 and 3, as a preferred embodiment, the fault simulation platform 2 includes a housing 21, a first rotating shaft 22, two transmission gears 23, two gear fault simulation modules 24, and a switching mechanism 25, wherein an output end of the gear box 12 is fixedly connected with an input end of the first rotating shaft 22, the first rotating shaft 22 is rotatably connected with the housing 21, and an output end of the first rotating shaft 22 is fixedly connected with the load device 3.
The two transmission gears 23 are sleeved on the first rotating shaft 22 at intervals and are respectively connected with the first rotating shaft 22 in a rotating way, the gear fault simulation module 24 is provided with a fault gear which can rotate relative to other parts, and the transmission gears 23 are in one-to-one correspondence with the gear fault simulation modules 24 and meshed with the fault gears of the gear fault simulation modules 24. The fault type of the fault gear can be common fault types such as broken teeth, cracks, pits and the like. During actual use, a worker may perform simulation of different fault types by replacing the gear fault simulation module 24 with a different fault type.
The switching mechanism 25 may respectively make the two transmission gears 23 in a first state or a second state, when the transmission gears 23 are in the first state, the transmission gears 23 may rotate relative to the first rotation shaft 22, and at this time, during the rotation of the first rotation shaft 22, the transmission gears 23 may not rotate along with the first rotation shaft 22; when the transmission gear 23 is in the second state, the transmission gear 23 is limited with the first rotating shaft 22, and at this time, the transmission gear 23 will rotate along with the first rotating shaft 22 and drive the fault gear of the gear fault simulation module 24 to rotate. The control acquisition system 4 is used for acquiring motion state data of the fault gears in the two gear fault simulation modules 24.
Compared with other embodiments, the fault simulation platform 2 in this embodiment not only can realize single simulation of the fault gear and compound simulation of the fault gear, but also can realize rapid switching between two simulation states.
Moreover, the gear fault simulation module 24 is modularized, so that a worker can conveniently and rapidly switch between multiple simulation types in any simulation state.
Referring to fig. 4, as a preferred embodiment, the switching mechanism 25 includes two sets of switching assemblies 251, the switching assemblies 251 are in one-to-one correspondence with the transmission gears 23, the switching assemblies 251 include a limiting member 2511 and a sleeve 2512, the limiting member 2511 and the sleeve 2512 are sleeved on the first rotating shaft 22 at intervals and are located at one side of the transmission gears 23, the side surface of the limiting member 2511 is fixedly connected with the side surface of the transmission gears 23, the sleeve 2512 is slidably connected with the first rotating shaft 22 and can rotate along with the first rotating shaft 22, and in a more specific embodiment, the sleeve 2512 is slidably connected with the first rotating shaft 22 through a flat key embedded on the first rotating shaft 22.
A limiting groove matched with the limiting piece 2511 is formed in the sleeve 2512. During use, a worker may drive sleeve 2512 to slide relative to first shaft 22 to place sleeve 2512 in either the first position or the second position. When sleeve 2512 is in the first position, sleeve 2512 is separated from stop 2511, and stop 2511 does not rotate with sleeve 2512; when the sleeve 2512 is in the second position, the sleeve 2512 is limited by the limiting member 2511, and at this time, the limiting member 2511 and the transmission gear 23 may rotate along with the sleeve 2512.
With continued reference to fig. 4, in a more preferred embodiment, the switching assembly 251 further includes a shift fork 2513, where the shift fork 2513 is engaged with the exterior of the sleeve 2512 and is rotatable relative to the sleeve 2512. In use, a worker may drive sleeve 2512 to slide relative to first shaft 22 via shift fork 2513. Compared with other embodiments, when the transmission gear 23, the gear failure simulation module 24 and the switching mechanism 25 are all located in the housing 21, the shift fork 2513 in this embodiment can facilitate the adjustment of the position of the sleeve 2512 by the operator.
Referring to fig. 3, as a preferred embodiment, the fault simulation platform 2 further includes a bearing fault simulation module 26, and an input shaft of the bearing fault simulation module 26 is detachably connected to an output shaft of any one of the gear fault simulation modules 24, where a fault type of the bearing fault simulation module 26 may be a common fault type such as a rolling element point defect, a rolling element crack, an inner ring pit, an inner ring crack, and the like. During actual use, a worker may perform simulation of different fault types by replacing the bearing fault simulation module 26 with a different fault type.
The control acquisition system 4 is also used for acquiring motion state data of the bearing fault simulation module 26.
Compared with other embodiments, the fault simulation platform 2 in this embodiment not only can realize single simulation of a fault gear, single simulation of a fault bearing (in this case, the fault gear in the gear fault simulation module 24 connected to the bearing fault simulation module 26 needs to be replaced by a perfect gear), compound simulation of two fault gears, compound simulation of one fault gear and a fault bearing, and compound simulation of two fault gears and a fault bearing, but also can perform rapid switching of the five simulation states.
Moreover, the bearing fault simulation module 26 is modularized, so that a worker can conveniently and rapidly switch between multiple simulation types in any simulation state.
Referring to fig. 5, as a preferred embodiment, the gear fault simulation module 24 includes a fault gear 241, a second rotating shaft 242 and a gear mounting seat 243, one end of the second rotating shaft 242 is rotatably connected with the housing 21, the other end of the second rotating shaft 242 is rotatably connected with the gear mounting seat 243, the fault gear 241 is sleeved on the second rotating shaft 242 and is fixedly connected with the second rotating shaft 242, and the fault gear 241 is meshed with the transmission gear 23.
Referring to fig. 6, as a preferred embodiment, the bearing fault simulation module 26 includes a fault bearing 261, a third rotating shaft 262 and a bearing mounting seat 263, one end of the third rotating shaft 262 is detachably connected with one end of one of the second rotating shafts 242, an inner ring of the fault bearing 261 is disposed on the third rotating shaft 262 and is fixedly connected with the third rotating shaft 262, and the bearing mounting seat 263 is disposed outside the fault bearing 261 and is fixedly connected with an outer ring of the fault bearing 261. Compared with other bearing fault simulation modules, the bearing fault simulation module in the embodiment is simpler in structure and more practical.
With continued reference to fig. 3, as a preferred embodiment, the fault simulation platform 2 further includes a split coupling 27, and one end of the third rotating shaft 262 is detachably connected to one end of one of the second rotating shafts 242 through the split coupling 27. Compared with other couplings, the split coupling is more convenient and quicker to install and disassemble.
Referring to fig. 7, as a preferred embodiment, the split coupling 27 includes two sets of half-couplings 271, a plurality of fasteners 272 and a plurality of limiting bars 273, wherein the two sets of half-couplings 271 are detachably connected by the plurality of fasteners 272, and when the two sets of half-couplings 271 are connected, a cylindrical accommodating cavity is formed to accommodate the third rotating shaft 262 and the second rotating shaft 242 connected with the third rotating shaft 262.
The third rotating shaft 262 and the second rotating shaft 242 connected to the third rotating shaft 262 are both provided with a plurality of first limiting grooves (not shown in the figure), and the cavity wall of the accommodating cavity is provided with a plurality of second accommodating grooves (not shown in the figure) at positions corresponding to the plurality of first accommodating grooves. The limiting strips 273 may be respectively embedded in the first accommodating grooves and the second accommodating grooves, so as to prevent the split coupling 27 from rotating relative to the third rotating shaft 262 and the second rotating shaft 242 connected with the third rotating shaft 262 during the rotation of the third rotating shaft 262 and the third rotating shaft 262.
Referring to fig. 2, as a preferred embodiment, the control acquisition system 4 includes an industrial personal computer 41, a PLC module 42, a motion control system 43, and an analog acquisition system 44.
The industrial personal computer 41 is electrically connected with the PLC module 42, the PLC module 42 is electrically connected with the motion control system 43 and the analog quantity acquisition system 44, and the industrial personal computer 41 can respectively control the output rotation speed and the output torque of the two driving pieces 11 and control the output load of the load device 3 through the PLC module 42 and the motion control system 43.
In addition, the industrial personal computer 41 may also collect the motion state data of the two gear fault simulation modules 24 and the bearing fault simulation module 26 through the PLC module 42 and the analog acquisition system 44.
Compared with other embodiments, in the control and acquisition system 4 provided in this embodiment, a worker may not only quickly adjust the output rotation speeds and output torques of the two driving members 11 and adjust the output load of the load device 3 through the industrial personal computer 41, but also implement operations such as oscillometric sampling, high-precision frequency meter, time domain analysis, frequency domain analysis, and self-spectrum analysis through data acquisition software (in the industrial personal computer 41).
Referring to fig. 8, as a preferred embodiment, the motion control system 43 includes a motion control module 431, two servo drivers 432, and a tension controller 433.
The PLC module 42 is electrically connected to the motion control module 431, and the motion control module 431 is electrically connected to the two driving members 11 through two servo drivers 432, so as to control the output rotation speeds and output torques of the two driving members 11, respectively. The motion control module 431 is also electrically connected to the load device 3 through the tension controller 433 to control the output load of the load device 3. In a more specific embodiment, the driving member 11 may be a servo motor and the load device 3 may be a magnetic powder brake.
Compared with other embodiments, the manner of controlling the driving member 11 and the load device 3 by the servo driver 432 and the tension controller 433 in this embodiment has better control effect and higher cost performance.
Referring to fig. 9, as a preferred embodiment, the analog acquisition system 44 includes an analog acquisition module 441, three sets of acceleration sensors 442 and two sets of displacement sensors 443, wherein the three sets of acceleration sensors 442 are respectively disposed near the two gear fault simulation modules 24 and the bearing fault simulation module 26, and the two sets of displacement sensors 443 are respectively disposed near the input shaft of the bearing fault simulation module 26 and the output shaft of the gear fault simulation module 24 connected to the input shaft of the bearing fault simulation module 26. In a more specific embodiment, the displacement sensor 443 is an eddy current displacement sensor.
The PLC module 42 is electrically connected to the three sets of acceleration sensors 442 and the two sets of displacement sensors 443 through the analog quantity acquisition module 441 to acquire acceleration data of the two gear fault simulation modules 24 and the bearing fault simulation module 26 through the three sets of acceleration sensors 442, so as to acquire displacement data of the input shaft of the bearing fault simulation module 26 and the output shaft of the gear fault simulation module 24 connected to the bearing fault simulation module 26 through the two sets of displacement sensors 443.
Measuring acceleration data and displacement data can better derive the motion state of the gear fault simulation module 24 and the bearing fault simulation module 26 than measuring other data.
In a more preferred embodiment, a set of the acceleration sensors 442 includes two acceleration sensors 442, and the two acceleration sensors 442 are used to collect acceleration data in the horizontal direction and the vertical direction of the gear failure simulation module 24 or the bearing failure simulation module 26, respectively.
The displacement sensors 443 include two displacement sensors 443, and the two displacement sensors 443 are respectively used for collecting displacement data in the horizontal direction and the vertical direction of the input shaft of the bearing fault simulation module 26 and the output shaft of the gear fault simulation module 24 connected to the bearing fault simulation module 26.
Compared with other embodiments, the method for simultaneously collecting the data in the horizontal direction and the data in the vertical direction in the present embodiment is more accurate.
Referring to fig. 2, in a more preferred embodiment, the control acquisition system 4 further includes a control button module 45, the control button module 45 includes a start button, a stop button and a scram button of the driving member 11, and the PLC module 42 is electrically connected to the start button, the stop button and the scram button, respectively, so that a worker directly controls the start, the stop and the scram of the driving member 11 through the start button, the stop button and the scram button. In addition, compared with other embodiments, the control acquisition system 4 with the scram button has higher safety, namely, when the industrial personal computer 41 crashes or other faults occur, the two driving members 11 can be forcibly stopped directly through the scram button.
With continued reference to fig. 2, in a more preferred embodiment, the control acquisition system 4 further includes an indication module 46, where the indication module 46 is composed of a plurality of indication lamps, and the indication module 46 is electrically connected with the PLC module 42 to play a role in prompting during a control process and a data collection process of the control acquisition system 4.
For a better understanding of the present invention, the following detailed description of the invention is provided with reference to fig. 1 to 7:
In actual use, the operator may connect or disconnect the bearing fault simulation module 26 and the gear fault simulation module 24, then select the gear fault simulation module 24 connected to the bearing fault simulation module 26 as a transmission component (in this case, the faulty gear 241 in the gear fault simulation module 24 connected to the bearing fault simulation module 26 needs to be replaced by a perfect gear) or a fault simulation module, and then switch the motion states of the two transmission gears 23 through the two sets of switching assemblies 251 to select a simulation state that is desired to be simulated. The types of faults of the gear fault simulation module 24 and the bearing fault simulation module 26 that need to be simulated are then replaced to select a type of fault for which simulation is desired.
After the selection, the industrial personal computer 41 controls the output torque and output torque of the two driving members 11 and the output load of the load device 3 respectively to simulate various working conditions. During the simulation, the staff member can directly record or analyze the data displayed on the industrial personal computer 41.
In summary, the fault simulation system of the rotary machine provided by the invention not only can realize multiple simulation states and multiple simulation types in any simulation state, but also can realize rapid switching among the multiple simulation states and rapid switching among the multiple simulation types in any simulation state in the use process. And then, the driving device and the load device can be used for simulating various working conditions. In addition, in the simulation process, staff can directly record or analyze the data displayed on the industrial personal computer.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (7)
1. The fault simulation system of the rotary machine is characterized by comprising a driving device, a fault simulation platform, a load device and a control acquisition system;
The driving device comprises two driving pieces and a gear box, the gear box is provided with two input ends, the two driving pieces are respectively and fixedly connected with the two input ends of the gear box so as to respectively drive the two input ends of the gear box to rotate, the output end of the gear box is fixedly connected with the input end of the fault simulation platform, and the output end of the fault simulation platform is fixedly connected with the load device;
The control acquisition system is respectively and electrically connected with the two driving pieces and the load device to respectively control the output rotating speed and the output torque of the two driving pieces and the output load of the load device, and is also used for acquiring the motion state data of the fault simulation platform, the fault simulation platform comprises a shell, a first rotating shaft, two transmission gears, two gear fault simulation modules and a switching mechanism, the output end of the gear box is fixedly connected with the input end of the first rotating shaft, the first rotating shaft is rotationally connected with the shell, and the output end of the first rotating shaft is fixedly connected with the load device;
the two transmission gears are sleeved on the first rotating shaft at intervals and are respectively connected with the first rotating shaft in a rotating way, and the transmission gears are in one-to-one correspondence with the gear fault simulation modules and meshed with the gear fault simulation modules;
The switching mechanism can enable the two transmission gears to be in a first state or a second state respectively, when the transmission gears are in the first state, the transmission gears can rotate relative to the first rotating shaft, and when the transmission gears are in the second state, the transmission gears and the first rotating shaft are limited;
The control acquisition system is used for acquiring the motion state data of the two gear fault simulation modules, the switching mechanism comprises two groups of switching components, and the switching components are in one-to-one correspondence with the transmission gears;
The switching assembly comprises a limiting piece and a sleeve, the limiting piece and the sleeve are sleeved on the first rotating shaft at intervals, the side face of the limiting piece is fixedly connected with the side face of the transmission gear, the sleeve is connected with the first rotating shaft in a sliding mode and can rotate along with the first rotating shaft, and a limiting groove matched with the limiting piece is formed in the sleeve;
The sleeve can slide, so that the sleeve is in a first position or a second position, when the sleeve is in the first position, the sleeve is separated from the limiting piece, when the sleeve is in the second position, the sleeve is limited by the limiting piece, the gear fault simulation module comprises a fault gear, a second rotating shaft and a gear mounting seat, one end of the second rotating shaft is rotationally connected with the shell, the other end of the second rotating shaft is rotationally connected with the gear mounting seat, the fault gear is sleeved on the second rotating shaft and is fixedly connected with the second rotating shaft, and the fault gear is meshed with the transmission gear.
2. The fault simulation system of a rotary machine of claim 1, wherein the fault simulation platform further comprises a bearing fault simulation module, an input shaft of the bearing fault simulation module is detachably connected with an output shaft of any one of the gear fault simulation modules, and the control acquisition system is further configured to acquire motion state data of the bearing fault simulation module.
3. The fault simulation system of a rotary machine according to claim 2, wherein the bearing fault simulation module comprises a fault bearing, a third rotating shaft and a bearing mounting seat, one end of the third rotating shaft is detachably connected with one end of one of the second rotating shafts, an inner ring of the fault bearing is arranged on the third rotating shaft and is fixedly connected with the third rotating shaft, and the bearing mounting seat is sleeved outside the fault bearing and is fixedly connected with an outer ring of the fault bearing.
4. The fault simulation system of a rotary machine according to claim 3, wherein the fault simulation platform further comprises a split coupling, and one end of the third rotating shaft is detachably connected to one end of one of the second rotating shafts through the split coupling.
5. The fault simulation system of a rotary machine according to claim 4, wherein the control acquisition system comprises an industrial personal computer, a PLC module, a motion control system, and an analog acquisition system;
the industrial personal computer is electrically connected with the PLC module, the PLC module is electrically connected with the motion control system and the analog quantity acquisition system, and the industrial personal computer is used for respectively controlling the output rotating speed and the output torque of the two driving parts and controlling the output load of the load device through the PLC module and the motion control system;
The industrial personal computer is also used for acquiring the motion state data of the two gear fault simulation modules and the bearing fault simulation module through the PLC module and the analog quantity acquisition system.
6. The fault simulation system of a rotary machine of claim 5, wherein the motion control system comprises a motion control module, two servo drives, and a tension controller;
The PLC module is electrically connected with the motion control module, the motion control module is electrically connected with the two driving parts through the two servo drivers respectively to control the output rotating speed and the output torque of the two driving parts respectively, and the motion control module is also electrically connected with the load device through the tension controller to control the output load of the load device.
7. The fault simulation system of a rotary machine of claim 6, wherein the analog acquisition system comprises an analog acquisition module, an acceleration sensor, and a displacement sensor;
The PLC module is electrically connected with the acceleration sensor and the displacement sensor through the analog quantity acquisition module, so that acceleration data of the two gear fault simulation modules and the bearing fault simulation module are acquired through the acceleration sensor, and displacement data of an input shaft of the bearing fault simulation module and an output shaft of the gear fault simulation module connected with the bearing fault simulation module are acquired through the displacement sensor.
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| CN202928797U (en) * | 2012-12-03 | 2013-05-08 | 中国计量学院 | Simulation experiment system of gear fault |
| CN104318851A (en) * | 2014-11-10 | 2015-01-28 | 武汉理工大学 | Rotating machinery fault simulation platform |
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| CN100575904C (en) * | 2008-02-29 | 2009-12-30 | 西安交通大学 | A kind of multi-fault coupling gear box simulated experiment bench |
| CN108168875B (en) * | 2017-12-01 | 2019-12-20 | 中国直升机设计研究所 | Helicopter tail transmission system fault implantation test bed |
| CN109029986A (en) * | 2018-09-03 | 2018-12-18 | 哈尔滨理工大学 | The simulation of rotating machinery multiple faults and test experience device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202928797U (en) * | 2012-12-03 | 2013-05-08 | 中国计量学院 | Simulation experiment system of gear fault |
| CN104318851A (en) * | 2014-11-10 | 2015-01-28 | 武汉理工大学 | Rotating machinery fault simulation platform |
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