CN214702741U - Predictive maintenance simulation device for faults of planetary gear box - Google Patents
Predictive maintenance simulation device for faults of planetary gear box Download PDFInfo
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- CN214702741U CN214702741U CN202023209009.3U CN202023209009U CN214702741U CN 214702741 U CN214702741 U CN 214702741U CN 202023209009 U CN202023209009 U CN 202023209009U CN 214702741 U CN214702741 U CN 214702741U
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- bearing seat
- coupling
- planetary gear
- planetary gearbox
- predictive maintenance
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Abstract
The utility model discloses a simulator is maintained in predictability of planetary gear case trouble, including the simulation platform, set up in motor device, torque speed sensing device, rotor base plate, planetary gear case and the magnetic powder arresting gear of simulation bench, motor device is connected with torque speed sensing device, and torque speed sensing device passes through the axle and is connected with planetary gear case, and planetary gear case is connected with magnetic powder arresting gear, and the rotor base plate sets up between torque speed sensing device and planetary gear case. Through the utility model discloses can accomplish multiple fault simulation, the function is various and the precision is higher, and the actual operating mode of all kinds of trouble external members of visual reflection can provide accurate reliable data such as vibration, temperature, electric current, voltage and implement in order to support planetary gear case's predictive maintenance function.
Description
Technical Field
The utility model relates to a numerical control processing technology field, especially planetary gear case trouble predictive maintenance analogue means.
Background
The planetary gear box is an important component widely applied to mechanical transmission, and has the typical advantages that power can be split when power is transmitted, and an input shaft and an output shaft are on the same horizontal line. Planetary gear transmissions have been widely used in reduction, speed-increasing and speed-changing devices in various mechanical transmission systems. Particularly, the gear-driven generator set has the characteristics of high load and large transmission ratio, so that the gear-driven generator set is widely applied to wind generating sets and heavy equipment. However, because the structure and the working state of the planetary gear are complex, the problems of vibration and noise are also prominent, and failure phenomena such as gear tooth fatigue pitting, tooth root cracks and even gear tooth or shaft fracture are easy to occur, so that the operation precision, the transmission efficiency and the service life of equipment are influenced, and therefore, predictive maintenance on the planetary gear box is urgently needed to improve the efficiency and reduce the cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simulator is maintained in prediction nature of planetary gear case trouble, can be used to planetary gear case's fault simulation, can accomplish multiple fault simulation simultaneously (for example gear box bearing fault experiment, planetary gear case transmission fault simulation experiment, radial loading experiment, torque loading experiment and the experiment that shakes of bending etc.), the function is various and the precision is higher, the actual operating mode of direct-viewing reflection trouble external member can provide accurate reliable vibration, the temperature, electric current, data such as voltage implement with the prediction nature maintenance function of supporting planetary gear case.
In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a planetary gear box trouble predictive maintenance analogue means, includes the simulation platform, sets up motor device, torque rotational speed sensing device, rotor base plate, planetary gear box and the magnetic powder arresting gear on the simulation platform, and motor device is connected with torque rotational speed sensing device, and torque rotational speed sensing device passes through the axle and is connected with planetary gear box, and planetary gear box is connected with the magnetic powder arresting gear, and the rotor base plate sets up between torque rotational speed sensing device and planetary gear box.
The device for simulating the predictive maintenance of the planetary gearbox fault further comprises a first bearing seat, a load balancing device, a displacement sensing support and a radial loader, wherein the first bearing seat, the load balancing device, the displacement sensing support and the radial loader are all arranged on the rotor substrate, the load balancing device and the displacement sensing support are arranged between the first bearing seat and the radial loader, the displacement sensing support is arranged between the load balancing device and the radial loader, and the first bearing seat, the load balancing device, the displacement sensing support and the radial loader are sequentially arranged on a shaft.
The device for predictively maintaining and simulating the fault of the planetary gearbox further comprises a first coupling, a second coupling and a third coupling, wherein the first coupling is arranged between the motor device and the torque and rotation speed sensing device; the second coupling is arranged between the torque and rotation speed sensing device and the first bearing seat; the third coupling is disposed between the radial loader and the planetary gearbox.
In the aforementioned predictive maintenance simulation device for planetary gearbox failure, a fourth coupling is further included, and the planetary gearbox is connected with the magnetic powder brake device through the fourth coupling.
In the aforementioned device for predictive maintenance simulation of planetary gearbox failure, a motor misalignment adjusting member is further included, and the motor misalignment adjusting member is mounted on the motor device. The motor device is enabled to be in different inclined states by adjusting the bolt and the screw on the motor misalignment adjusting piece, so that parallel misalignment and angle misalignment fault experiments between the motor device and the planetary gear box are simulated.
In the aforementioned apparatus for predictive maintenance simulation of planetary gearbox failure, a first rotor misalignment adjusting member is further included, and the first rotor misalignment adjusting member is mounted on the first bearing seat. In each fault simulation experiment, the first bearing seat can be in different inclined states by adjusting the bolt and the screw on the first rotor misalignment adjusting piece arranged on the first bearing seat, so that parallel misalignment and angle misalignment fault experiments between the torque rotating speed sensing device and the load balancing device are simulated.
In the aforementioned predictive maintenance simulation device for the fault of the planetary gearbox, a displacement sensor is mounted on the sensing bracket; the first bearing seat and the second bearing seat are both provided with a temperature sensor and a vibration sensor; the motor device is internally provided with a motor control feedback unit. In each fault simulation actual, the displacement sensor arranged on the sensor bracket can monitor the displacement jump of the bearing, and the diagnosis functions of two faults of non-centering and bending vibration of the rotor can be realized; temperature data in a simulation experiment can be accurately acquired through temperature sensors on the first bearing seat and the second bearing seat; the vibration data in the fault simulation experiment can be accurately acquired through the vibration sensor. The system comprises a displacement sensor, a temperature sensor, a vibration sensor and other signal acquisition devices, so as to acquire experimental data of a fault suite or equipment in a fault simulation experiment, and acquire life prediction optimization and quantitative health state evaluation of the fault suite or the equipment.
In the aforementioned predictive maintenance simulation device for the planetary gearbox failure, the second bearing seat is further included, and the second bearing seat is arranged between the radial loader and the third coupling.
In the aforementioned apparatus for predictive maintenance simulation of planetary gearbox failure, a second rotor misalignment adjusting member is further included, and the second rotor misalignment adjusting member is mounted on the second bearing seat. In each fault simulation experiment, the second rotor arranged on the second bearing seat can be adjusted to not center the bolt screw on the adjusting piece, so that the second bearing seat is in a different-degree inclined state, and the parallel non-centering and angle non-centering fault experiment between the loading support and the planetary gear box is simulated. Simultaneous adjustment
Compared with the prior art, the utility model discloses an useful part lies in:
1. as predictive maintenance of a planetary gear box fault kit, before equipment and parts break down, the current state and the residual service life can be obtained and combined with spare parts, so that potential safety hazards can be avoided;
2. the fault simulation device can be used for fault simulation of different fault kits of the planetary gear box, one device can complete various fault simulations (such as a rolling bearing fault experiment, a planetary gear box transmission fault simulation experiment, a radial loading experiment, a torque loading experiment, a bending vibration experiment and the like), the functions are various, the structure is simple, the actual working condition of the fault kit is directly reflected, and accurate and reliable data of vibration, temperature, current, voltage and the like can be provided;
3. the method has the advantages that predictive maintenance simulation oriented to the typical failure mode of the planetary gear box is established, implementation of the predictive maintenance standard of intelligent equipment is promoted, and multiple functions of simulation, test, scientific research and the like can be integrated;
4. the utility model has better compatibility, can simulate equipment, key components and a certain fault mode, and has strong generalization capability and better universality;
5. on the basis of the existing research, a plurality of different signal acquisition devices are arranged, such as an optimized sensor measuring point arrangement strategy and current and voltage acquisition, so that the service life prediction optimization and the health state quantitative evaluation of a fault suite and the like are realized, and an optimized maintenance strategy and management scheme are provided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Reference numerals: 1-simulation bench, 2-motor device, 3-torque and rotation speed sensing device, 4-rotor base plate, 5-planetary gear box, 6-magnetic powder braking device, 7-load balancing device, 8-displacement sensing bracket, 9-radial loader, 10-second bearing seat, 11-shaft, 12-first coupling, 13-second coupling, 14-third coupling, 15-fourth coupling, 16-motor misalignment adjusting piece, 17-first rotor misalignment adjusting piece, 18-second rotor misalignment adjusting piece and 19-first bearing seat.
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Embodiment 1 of the utility model: the utility model provides a planetary gear case trouble predictive maintenance analogue means, includes simulation platform 1, sets up motor device 2, torque rotational speed sensing device 3, rotor base plate 4, planetary gear case 5 and magnetic powder arresting gear 6 on simulation platform 1, and motor device 2 is connected with torque rotational speed sensing device 3, and torque rotational speed sensing device 3 is connected with planetary gear case 5 through axle 11, and planetary gear case 5 is connected with magnetic powder arresting gear 6, and rotor base plate 4 sets up between torque rotational speed sensing device 3 and planetary gear case 5.
1. Utilize the utility model discloses carry out antifriction bearing fault experiment:
a bearing fault external member to be treated is prepared in advance and mainly comprises an inner ring, an outer ring, a rolling body, a retainer and the like. By replacing the to-be-tested fault external member in the first bearing seat 19 and/or the second bearing seat 10, different fault states of the inner ring, the outer ring, the rolling body, the retainer and the like can be simulated, and the accurate positioning of the fault and the fault separation and positioning when two or more bearing fault external members are integrated can be realized.
Through the operation of changing the bearing trouble external member, can be quick simulate different trouble, can audio-visual experience trouble simulation process, realize the purpose of demonstration.
2. Utilize the utility model discloses carry out planetary gear box transmission fault simulation experiment:
bearing faults and gear faults are simulated through the planetary gear box 5, and by replacing the bearings or gears and other external members, the separation and positioning of gear fracture, gear abrasion, bearing inner ring faults, bearing outer ring faults, rolling body faults and retainer faults and different faults under the integrated scene of the multiple faults can be simulated.
3. Utilize the utility model discloses carry out radial loading experiment, torque loading experiment:
the force application bolt is fixed on the lower portion of the simulation platform 1 through threaded connection, the loading rod is installed in the simulation platform 1, the upper end of the loading rod is located at the bottom of the bearing sleeve, the radial stress condition of shaft parts can be simulated, the size of radial load can be controlled quantitatively, and the force application device is simple in structure, small in size, convenient to operate and high in practicability.
The torque loading test realizes quantitative loading through the magnetic powder braking device 6.
Through the utility model discloses can also realize mixed fault, can simulate the different combinations of several kinds of troubles above, the algorithm technology independently researched and developed through the applicant can realize the fault separation and the accurate location of different combinations, also can carry out the analysis to the fault degree.
The utility model discloses a theory of operation:
providing power input through the motor device 2; the torque and the rotating speed can be measured by the torque and rotating speed sensing device 3;
the first bearing seat 19 and the second bearing seat 10 are used for supporting the shaft 11, a to-be-tested fault suite coaxial with the first bearing seat 19 and the second bearing seat 10 can be built in the first bearing seat 19 and the second bearing seat 10, the to-be-tested fault suite is a bearing fault suite, and inner ring faults, outer ring faults and the like of the bearing fault suite can be detected;
a sensor is arranged outside the displacement sensing bracket 8, and a to-be-tested fault external member coaxial with the sensor is arranged inside the displacement sensing bracket, specifically a bearing fault external member; the radial loader 9 can realize radial loading of the shaft 11 and simulate faults of radial loading, unbalance, bending vibration and the like; simulating a plurality of typical failure modes of a failure suite to be tested (such as simulating gear breakage of built-in gears and bearings of the planetary gearbox 5 and the like) through the planetary gearbox 5, wherein the typical failures comprise inner ring failures, outer ring failures, rolling body failures, retainer failures and mixed failures. The planetary gearbox 5 is loaded by a magnetic particle brake 6.
The control of the motor device 2 and the feedback of signals such as voltage, current, rotating speed and torque can be realized through a motor control feedback unit built in the motor device 2, the rotating speed and torque signals of the motor device 2 are fed back through the motor control feedback unit, the current and voltage signals of the motor device 2 are collected through the motor control feedback unit, and the running state and the working condition of the motor device 2 are monitored by monitoring the torque, the rotating speed, the current and the voltage of the motor device 2.
Claims (9)
1. The predictive maintenance simulation device for the fault of the planetary gearbox is characterized by comprising a simulation platform (1), a motor device (2), a torque and rotation speed sensing device (3), a rotor base plate (4), the planetary gearbox (5) and a magnetic powder braking device (6) which are arranged on the simulation platform (1), wherein the motor device (2) is connected with the torque and rotation speed sensing device (3), the torque and rotation speed sensing device (3) is connected with the planetary gearbox (5) through a shaft (11), the planetary gearbox (5) is connected with the magnetic powder braking device (6), and the rotor base plate (4) is arranged between the torque and rotation speed sensing device (3) and the planetary gearbox (5).
2. A predictive maintenance simulation device of planetary gearbox failure according to claim 1, it is characterized by also comprising a first bearing seat (19), a load balancing device (7), a displacement sensing bracket (8) and a radial loader (9), the first bearing seat (19), the load balancing device (7), the displacement sensing bracket (8) and the radial loader (9) are all arranged on the rotor substrate (4), the load balancing device (7) and the displacement sensing bracket (8) are arranged between the first bearing seat (19) and the radial loader (9), the displacement sensing bracket (8) is arranged between the load balancing device (7) and the radial loader (9), the first bearing seat (19), the load balancing device (7), the displacement sensing support (8) and the radial loader (9) are sequentially arranged on the shaft (11).
3. A predictive maintenance simulation device of a planetary gearbox failure according to claim 2, characterized by further comprising a first coupling (12), a second coupling (13) and a third coupling (14), said first coupling (12) being arranged between the motor means (2) and said torque-rotation speed sensing means (3); the second coupling (13) is arranged between the torque and rotation speed sensing device (3) and the first bearing seat (19); the third coupling (14) is arranged between the radial loader (9) and the planetary gearbox (5).
4. A predictive maintenance simulation device of a planetary gearbox failure according to claim 3, characterised by further comprising a fourth coupling (15), the planetary gearbox (5) being connected to the magnetic particle brake device (6) by means of the fourth coupling (15).
5. A predictive maintenance simulator of a planetary gearbox failure according to claim 4, further comprising a motor misalignment adjustment (16), said motor misalignment adjustment (16) being mounted on said motor arrangement (2).
6. A predictive maintenance simulation device of a planetary gearbox failure according to claim 5, further comprising a first rotor misalignment adjustment (17), said first rotor misalignment adjustment (17) being mounted on said first bearing block (19).
7. A predictive maintenance simulation device of planetary gearbox failure according to claim 6, characterized in that displacement sensors are mounted on the displacement sensing carrier (8); the first bearing seat (19) and the second bearing seat (10) are both provided with a temperature sensor and a vibration sensor; the motor device (2) is internally provided with a motor control feedback unit.
8. A predictive maintenance simulation device of an epicyclic gearbox failure according to claim 7, further comprising a second bearing seat (10), said second bearing seat (10) being arranged between said radial loader (9) and a third coupling (14).
9. A predictive maintenance simulator of an epicyclic gearbox failure according to claim 8, further comprising a second rotor misalignment adjuster (18), said second rotor misalignment adjuster (18) being mounted on said second bearing block (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023209009.3U CN214702741U (en) | 2020-12-28 | 2020-12-28 | Predictive maintenance simulation device for faults of planetary gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023209009.3U CN214702741U (en) | 2020-12-28 | 2020-12-28 | Predictive maintenance simulation device for faults of planetary gear box |
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| Publication Number | Publication Date |
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| CN214702741U true CN214702741U (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023209009.3U Active CN214702741U (en) | 2020-12-28 | 2020-12-28 | Predictive maintenance simulation device for faults of planetary gear box |
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| Country | Link |
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| CN (1) | CN214702741U (en) |
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- 2020-12-28 CN CN202023209009.3U patent/CN214702741U/en active Active
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