CN111722107A - Variable-pitch motor multifunctional maintenance test platform - Google Patents
Variable-pitch motor multifunctional maintenance test platform Download PDFInfo
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- CN111722107A CN111722107A CN202010529208.8A CN202010529208A CN111722107A CN 111722107 A CN111722107 A CN 111722107A CN 202010529208 A CN202010529208 A CN 202010529208A CN 111722107 A CN111722107 A CN 111722107A
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000012423 maintenance Methods 0.000 title claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 230000003068 static effect Effects 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 7
- 238000011056 performance test Methods 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012812 general test Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a multifunctional maintenance test platform for a variable pitch motor, which comprises a base, a fixed platform, a liftable platform, a torque generating device, a torque and rotating speed data acquisition instrument, a motor fixed disk, a vibration analysis and field balancing instrument, a rotor bearing supporting seat, a torque wrench, a motor shaft extension connector, a PLC (programmable logic controller), an upper computer, a data acquisition display instrument, a torque controller and a circulating cooling device, wherein the torque generating device is connected with the base through a connecting rod; the torque generating device is connected with the variable pitch motor to realize the on-load test of the variable pitch motor; the dynamic balance performance test of blades of a variable pitch motor rotor or a cooling air duct fan of a variable pitch motor is realized by the cooperation of a vibration analysis and field balancer and a rotor bearing support seat; the torque wrench is connected with a variable pitch motor through a motor shaft extension connector, and a brake on a motor shaft is subjected to static torque test. The invention is convenient for the work performance test and the related part maintenance work of the alternating current, direct current and permanent magnet synchronous motor used in the blade control variable pitch system of the generator set and the multi-type variable pitch electric control system.
Description
Technical Field
The invention belongs to the technical field of testing and maintaining of wind power generation variable pitch control equipment, and particularly relates to a multifunctional maintaining and testing platform for a variable pitch motor.
Background
A variable pitch system in the wind power generation industry is used as one of core parts of a control system of a wind turbine generator and plays an important role in stable, efficient and safe operation of the wind turbine generator.
The pitch control technology is simple, namely, the pitch angle of the blades of the generator is adjusted through a control system and an executing device, the attack of airflow on the blades is changed, and then the pneumatic torque and the pneumatic power captured by the fan blades are controlled.
At present, the main pitch control system of domestic manufacturers mostly adopts a motor to adjust the blades, the core component of the executing device is the pitch motor, and the operating performance can directly influence the working efficiency and the stability of the pitch system. The operation environment and working condition of the variable pitch motor in the wind power industry have particularity, and the operation working condition of the variable pitch system cannot be completely simulated by adopting a conventional motor maintenance and test method due to the limitation of the use environment.
Therefore, aiming at the problems, the multifunctional platform for maintaining and testing the pitch motor in the wind power industry is provided, and the multifunctional platform has important practical significance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a multifunctional platform for maintaining and testing a variable pitch motor in the wind power industry.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the multifunctional maintenance test platform for the variable pitch motor comprises a base, wherein a fixed platform is arranged at one end of the surface of the base, a liftable platform is arranged at the other end of the surface of the base, and a plurality of T-shaped slideways arranged in parallel are arranged on the surfaces of the fixed platform and the liftable platform;
the device also comprises a torque generating device, a torque and rotating speed data acquisition instrument, a motor fixing disc, a vibration analysis and on-site balancing instrument, a rotor bearing supporting seat, a torque wrench, a motor shaft extension connector, a PLC (programmable logic controller), an upper computer, a data acquisition display instrument, a torque controller and a circulating cooling device;
the torque generating device can be arranged on a T-shaped slideway on the fixed platform, the motor fixing disc can be arranged on the T-shaped slideway, and the variable pitch motor can be fixed by being arranged on the motor fixing disc; the torque generating device can be connected with a variable pitch motor to realize the load test of the variable pitch motor; the vibration analysis and field balancer is matched with the rotor bearing support seat to test the dynamic balance performance of the blade of the variable pitch motor rotor or the cooling air duct fan of the variable pitch motor; one end of the torque wrench is connected with the variable pitch motor through a motor shaft extension connector, and a brake on a motor shaft is subjected to static torque test;
the torque controller is connected with the torque generating device and controls the torque generating device to generate torque, the torque and rotating speed data acquisition instrument acquires the torque and rotating speed of the variable pitch motor, the circulating cooling device provides cooling circulation for the torque generating device, the torque controller and the circulating cooling device are both electrically connected with the PLC, the torque and rotating speed data acquisition instrument is electrically connected with the data acquisition display instrument and transmits acquired data to the data acquisition display instrument, and the data acquisition display instrument is in communication connection with an upper computer.
Furthermore, the motor fixing disc is of an L-shaped plate structure, one side face of the motor fixing disc is fixedly connected with the liftable platform, and the other side face of the motor fixing disc is provided with a circular hole for fixing and installing the variable pitch motor.
Furthermore, the motor shaft extension connector is of a tubular structure, and a U-shaped notch is formed in the side wall of one end of the motor shaft extension connector.
Furthermore, a rotor bearing fixing hole is formed in the rotor bearing supporting seat and used for fixing a variable pitch motor rotor.
Furthermore, the height of the liftable platform can be adjusted in the up-down direction.
The invention has the advantages and positive effects that:
the maintenance test platform for the variable pitch motor provided by the invention has comprehensive test performance, can simulate the running torque of the motor under various working conditions, directly judges the variable quantity of the working performance index of each component of the control system and the variable pitch motor under different working conditions, and is particularly convenient for the working performance test and the related component maintenance work of alternating current, direct current and permanent magnet synchronous motors and various variable pitch electric control systems used in a generator set fan blade control variable pitch system in the wind power generation industry.
Drawings
The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus do not limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.
FIG. 1 is a front view of a multifunctional maintenance test platform for a pitch motor according to an embodiment of the invention;
FIG. 2 is a top view of a multifunctional maintenance test platform for a pitch motor according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a motor fixing disc of the multifunctional maintenance test platform for the pitch motor, provided by the embodiment of the invention;
fig. 4 is a schematic structural diagram of a motor shaft extension connector of the multifunctional maintenance test platform for the pitch motor according to the embodiment of the invention;
FIG. 5 is a schematic view of a rotor bearing support structure according to an embodiment of the present invention;
FIG. 6 is a circuit connection diagram for a load test of a pitch motor according to an embodiment of the present invention;
Detailed Description
First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be specifically described below by way of example, but all the descriptions are for illustrative purposes only and should not be construed as limiting the present invention in any way. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.
In the description of the present invention, it should be noted that the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present invention will be described in detail with reference to fig. 1 to 6.
The multifunctional maintenance test platform for the variable pitch motor comprises a base 1, wherein a fixed platform 2 is arranged at one end of the surface of the base 1, a liftable platform 3 is arranged at the other end of the surface of the base 1, the height of the liftable platform 3 can be adjusted in the vertical direction, and a plurality of T-shaped slideways 4 which are arranged in parallel are arranged on the surfaces of the fixed platform 2 and the liftable platform 3;
the device also comprises a torque generating device 5, a torque and rotating speed data acquisition instrument 6, a motor fixing disc 7, a vibration analysis and field balancing instrument, a rotor bearing supporting seat 9, a torque wrench, a motor shaft extension connector 10, a PLC (programmable logic controller) 11, an upper computer 12, a data acquisition display instrument 13, a torque controller 14 and a circulating cooling device 15;
the torque generating device 5 can be arranged on the T-shaped slideway 4, the motor fixing disc 7 can be arranged on the T-shaped slideway 4, and the variable pitch motor can be fixed by being arranged on the motor fixing disc 7; the torque generating device 5 can be connected with a variable pitch motor to realize the loading test of the variable pitch motor; the vibration analysis and field balancer is matched with the rotor bearing support seat to test the dynamic balance performance of the blade of the variable pitch motor rotor or the cooling air duct fan of the variable pitch motor; one end of the motor shaft extension connector 10 is connected with the torque wrench, the other end of the motor shaft extension connector is connected with the variable pitch motor (at the moment, the variable pitch motor is fixed through the motor fixing disc 7), and the static torque test of the brake on the motor shaft can be realized through the assembling mode.
It should be noted that the torque generating device 5, the torque and rotational speed data collecting instrument 6, the vibration analyzing and field balancing instrument, the torque wrench, the PLC controller 11, the upper computer 12, the data collecting and displaying instrument 13, the torque controller 14, and the circulating cooling device 15 may all be existing products, for example, in this embodiment, the torque generating device 5, the data collecting and displaying instrument 13, and the torque and rotational speed collecting instrument 6 are all related products of the electromechanical technologies ltd of Jiangsu Lanling, the torque wrench is a product of the Wuert company, the PLC controller 11 is a CX9001 series PLC of the BECKHOFF company, the upper computer 12 is a tablet computer with touch screen function of iEi company (Weiqiang), the upper computer display interface and the communication program are designed by using general test programming software, and the circulating cooling device is a FL series air-cooled industrial water chiller of the same honesty company of Ji, Jiuzhou.
The torque controller 14 is connected with the torque generating device 5 and controls the torque generating device to generate torque, the torque and rotation speed data acquisition instrument 6 acquires the torque and rotation speed of the variable pitch motor during on-load testing, the circulating cooling device 15 provides cooling circulation for the torque generating device 5, the torque controller 14 and the circulating cooling device 15 are both electrically connected with the PLC 11, the torque and rotation speed data acquisition instrument 6 is connected with the data acquisition display instrument 13, the data acquisition display instrument 13 is in communication connection with the upper computer 12 through a communication interface, and acquired data are transmitted to the upper computer 12 for data conversion, curve display and data storage.
The torque controller 14 is connected with the torque generating device 5 and controls the torque generating device to generate torque, the PLC controller 11 is connected with the torque controller 14 and controls the torque output value and the output amplitude variation form, it should be noted that the control mode of the torque controller 14 may also be a manual form (only the torque output value is controlled); the data acquisition display instrument 13 is responsible for acquiring relevant test data such as torque, speed and the like, the data enters the upper computer 12 through a communication interface, the upper computer 12 uses a display interface and a communication program designed by general test programming software, the acquired data is displayed and stored in the upper computer 12, and the upper computer 12 adopts a touch screen, so that the operation is simple and rapid;
the PLC adopts BECKHOFF CX9001, and monitors the running states of equipment such as a circulating cooling device 15 and the like besides controlling the torque controller 14;
it should be noted that, as shown in fig. 3, the motor fixing disk 7 is an L-shaped plate structure, one surface of which is fixedly connected with the liftable platform 3, and the other side surface of which is provided with a circular hole 16 for fixing and installing the pitch motor.
Moreover, as shown in fig. 4, the motor shaft extension connector 10 is a tubular structure, and a U-shaped notch 17 is formed in the side wall of one end; motor shaft stretches connector 10 one side design and has the quad slit for connect torque wrench 9's side falcon structure, the opposite side designs into tubular structure and has U type breach 17, is used for being connected with the flat key that becomes on the oar motor shaft, and tubular structure is connected with the motor shaft to have certain tolerance fit size, the benefit of design just can detect and become oar motor shaft diameter size and have a problem like this.
As shown in fig. 5, a rotor bearing fixing hole 8 is formed in the rotor bearing support 9, and the inner size of the rotor bearing fixing hole is designed to be matched with the outer diameter of bearings on different motor rotors, so as to fix the variable pitch motor rotors of different models.
By way of example, in the present embodiment, when performing a pitch motor on-load test: the variable pitch motor is fixed on a motor fixing disc 7, a torque generating device 5 is fixed on a fixing platform 2, the output end of the variable pitch motor is fixedly connected with the side of a circular hole 16, the output shaft of the variable pitch motor is connected with the torque generating device 5 through a coupler, a torque and rotating speed data acquisition instrument 6 is connected with a data acquisition display instrument 13 and used for simple data display, the data acquisition display instrument 13 is in communication connection with an upper computer 12 through a communication interface, and acquired data are transmitted to the upper computer 12 to be subjected to data conversion, curve display and data storage. The torque controller 14 is connected with the torque generating device 5 and controls the torque generating device to generate torque, different damping torques can be generated on the torque generating device 5 by adjusting the control current of the torque controller 14 according to the output torque parameter range of the tested variable-pitch motor, (site working condition is simulated) the variable-pitch control system and the variable-pitch motor operate under the site working condition simulated, the working performance index variable quantities (equipment loading capacity) of various parts of the variable-pitch control system and the variable-pitch motor are tested by adjusting the torque and output amplitude variable values of the torque generating device 5, and the loading tests of the variable-pitch motors and control systems of various types used in the wind power industry can be carried out by replacing different motor fixing discs 7, namely the motor output torque performance test and the loading capacity test of power elements of a variable-pitch electric control system; when dynamic balance, vibration test is carried out: when the variable pitch control system and the variable pitch motor are operated under the condition of simulating the on-site working condition in a loading mode, mechanical vibration data of a rotating part of the variable pitch motor in the horizontal and vertical directions are measured by using a KMbalancer II American product vibration analysis and on-site balancing instrument and matching A, B two groups of probes, and whether the vibration index of the mechanical part meets the requirement is analyzed; when the rotor needs to be subjected to dynamic balance work, a variable pitch motor is fixed on a motor fixing disc 7, the output end of the variable pitch motor is fixedly connected with the side of a circular hole 16, a torque generating device 5 on a fixing platform 2 is replaced, the output shaft of the variable pitch motor is connected with a measured rotor through a coupler, two sides of the rotor are clamped by two rotor bearing supporting seats and fixed on a liftable platform 3, the variable pitch motor drives the rotor to rotate together after rotating, and at the moment, the dynamic balance performance parameter index of the motor rotor can be detected by utilizing the vibration analysis and the field balance function of a field balancer, or the rotor is subjected to counterweight adjustment again according to the measurement result, so that the dynamic balance performance of the motor is improved; it should be noted that, during testing, two groups of probes of the vibration analysis and field balancer can be respectively placed on the platform and the vertical surface of the rotor bearing support seat; in addition, a supporting tool and a fixture which are additionally manufactured and matched with each other can be additionally arranged, so that the blade of the cooling air duct fan of the variable pitch motor can be subjected to dynamic balance test and balance weight adjustment; when conducting a spring loaded brake static torque test on a motor shaft: the square tenon structure of the torque wrench 9 is inserted into a square hole in one side of the motor shaft extension connector 10, the tubular structure on the other side is connected with the motor shaft, the U-shaped notch 17 in the tubular structure is connected with a flat key on the pitch-variable motor shaft, the pitch-variable motor is driven to rotate for a certain angle by pulling the torque wrench 9, and the static torque value of the spring pressurizing brake installed on the pitch-variable motor shaft is measured.
The present invention has been described in detail with reference to the above examples, but the description is only for the preferred examples of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (5)
1. Become multi-functional maintenance test platform of oar motor, its characterized in that: the lifting platform is arranged at one end of the surface of the base, and a plurality of T-shaped slideways arranged in parallel are arranged on the surfaces of the fixed platform and the lifting platform;
the device also comprises a torque generating device, a torque and rotating speed data acquisition instrument, a motor fixing disc, a vibration analysis and on-site balancing instrument, a rotor bearing supporting seat, a torque wrench, a motor shaft extension connector, a PLC (programmable logic controller), an upper computer, a data acquisition display instrument, a torque controller and a circulating cooling device;
the torque generating device can be arranged on a T-shaped slideway on the fixed platform, the motor fixing disc can be arranged on the T-shaped slideway, and the variable pitch motor can be fixed by being arranged on the motor fixing disc; the torque generating device can be connected with a variable pitch motor to realize the load test of the variable pitch motor; the vibration analysis and field balancer is matched with the rotor bearing support seat to test the dynamic balance performance of the blade of the variable pitch motor rotor or the cooling air duct fan of the variable pitch motor; one end of the torque wrench is connected with the variable pitch motor through a motor shaft extension connector, and a brake on a motor shaft is subjected to static torque test;
the torque controller is connected with the torque generating device and controls the torque generating device to generate torque, the torque and rotating speed data acquisition instrument acquires the torque and rotating speed of the variable pitch motor, the circulating cooling device provides cooling circulation for the torque generating device, the torque controller and the circulating cooling device are both electrically connected with the PLC, the torque and rotating speed data acquisition instrument is electrically connected with the data acquisition display instrument and transmits acquired data to the data acquisition display instrument, and the data acquisition display instrument is in communication connection with an upper computer.
2. The multifunctional maintenance test platform for the pitch motor according to claim 1, wherein: the motor fixing disc is of an L-shaped plate structure, one side face of the motor fixing disc is fixedly connected with the liftable platform, and the other side face of the motor fixing disc is provided with a round hole for fixing and installing the variable pitch motor.
3. The multifunctional maintenance test platform for the pitch motor according to claim 1, wherein: the motor shaft extension connector is of a tubular structure, and a U-shaped notch is formed in one end side wall.
4. The multifunctional maintenance test platform for the pitch motor according to claim 1, wherein: and the rotor bearing supporting seat is provided with a rotor bearing fixing hole, and the rotor bearing fixing hole is used for fixing a variable pitch motor rotor.
5. The multifunctional maintenance test platform for the pitch motor according to claim 1, wherein: the height of the liftable platform can be adjusted in the up-down direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010529208.8A CN111722107A (en) | 2020-06-11 | 2020-06-11 | Variable-pitch motor multifunctional maintenance test platform |
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| CN202010529208.8A CN111722107A (en) | 2020-06-11 | 2020-06-11 | Variable-pitch motor multifunctional maintenance test platform |
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Application publication date: 20200929 |