CN217206733U - Independent variable-pitch full-working-condition load test platform for medium-sized fan - Google Patents
Independent variable-pitch full-working-condition load test platform for medium-sized fan Download PDFInfo
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- CN217206733U CN217206733U CN202123171585.8U CN202123171585U CN217206733U CN 217206733 U CN217206733 U CN 217206733U CN 202123171585 U CN202123171585 U CN 202123171585U CN 217206733 U CN217206733 U CN 217206733U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses an independent oar-changing full-operating mode load test platform for medium-sized fan, including the test bench frame, be fixed with oar-changing control system, oar-changing bearing, independent oar-changing system driving motor on the test bench frame, oar-changing system driving motor's drive end is connected the oar-changing system and is driven the speed reducer, the output gear of oar-changing system drive speed reducer output meshes with the ring gear of oar-changing bearing inboard, still is equipped with force application device on the oar-changing bearing, oar-changing system driving motor connects oar-changing control system, oar-changing control system connects the computer; the test bed frame and all parts fixed on the test bed frame are arranged in the closed structure, and the closed structure is controlled and connected by a computer. Through the utility model discloses a test platform can be fine tests the loading of oar system of becoming, carries that speed of regulation is fast, and the precision is high, and whole test procedure is simple, and the process data of torque variation can real-time storage, analysis in the test.
Description
Technical Field
The utility model relates to an independent full operating mode load test platform that becomes of medium-sized fan belongs to aerogenerator technical field.
Background
With the increase of the capacity of a wind generating set, the diameter of a wind wheel is lengthened, wind shear, a tower shadow effect and turbulence are performed, so that the unbalanced stress load of the wind generating set is increased rapidly, and in order to reduce the unbalanced stress load of the wind generating set and obtain high-efficiency utilization rate of wind energy, the variable pitch has become a mainstream operation mode controlled by medium-sized wind turbine blades in the market. Therefore, the safety of the unit is guaranteed; the performance verification test platform of the intelligent and fully-controlled independent variable pitch system is very important.
The existing test platform for the loading test of the variable pitch system of the unit can only test a single performance index, most of the loading tests are only limited to constant torque given by a hydraulic cylinder, the load adjusting speed is low, the precision is not high, the whole test process is complex, and process data of torque change in the test cannot be stored and analyzed in real time.
The presently disclosed patents are: CN109578221A A test bed for a wind generating set hub and a variable pitch system loading test; the CN212693246U loading device and the testing device of the variable pitch bearing are patented; CN102519720A A test device for a wind turbine generator pitch system; CN106438219A is used for test system and test method of wind generating set change oar system.
In above-mentioned patent, mostly adopt pneumatic cylinder or material object gravity to give load torque, load torque adjusts slower, and there is the deviation in the moment of torsion precision, and the volume is great, and it is limited to become the oar angle, and the simple operation nature is relatively poor, and the part has the counter weight risk of falling easily when testing more.
CN208043433U discloses a become oar motor reverse loading test device, adopts electronic reverse loading, and this experimental apparatus control mode is comparatively simple, only can test single performance index, test process load, the variable pitch system test operation information can't real-time human-computer interaction.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: how to reduce the volume of the variable pitch system loading test platform and how to improve the torque precision, the convenient operation degree and the load adjusting speed of the test platform.
In order to solve the technical problem, the technical scheme of the utility model provides an independent oar-changing full operating mode load test platform for medium-sized fan, a serial communication port, including the test bench frame, be fixed with oar-changing control system on the test bench frame, the oar-changing bearing, independent oar-changing system driving motor, oar-changing system driving motor's drive end is connected the oar-changing system drive speed reducer, oar-changing system drive speed reducer's output is equipped with the oar-changing output gear, the inboard of oar-changing bearing is equipped with the ring gear, the oar-changing output gear meshes with the ring gear of oar-changing bearing inboard, the oar-changing bearing still is equipped with the force application device that prevents the oar-changing bearing rotation with the same reverse moment that the fan blade exerts pressure for the oar-changing bearing, oar-changing system driving motor connects the oar-changing control system, the oar-changing control system connects the computer; the test bed frame and all parts fixed on the test bed frame are arranged in a closed structure capable of simulating various severe working conditions, and the closed structure is connected by computer control.
Preferably, the force application device comprises a load loading motor, the driving end of the load loading motor is connected with a load loading speed reducer, the output end of the load loading speed reducer is provided with a load output gear, and the load output gear is meshed with a gear ring on the inner side of the variable pitch bearing; the rotating direction of the load loading motor is opposite to that of the driving motor of the variable pitch system; a load control system is fixed on the test bed frame, and the load control system controls a load loading motor to apply the same reverse torque to the variable pitch bearing to prevent the variable pitch bearing from rotating.
Preferably, the force application device comprises a weight-imitating real object, the weight of the weight-imitating real object is the same as that of the fan blade, the weight-imitating real object is fixed on the connecting plate, the connecting plate is fixed on the variable-pitch bearing, and the weight distribution of the weight-imitating real object on the variable-pitch bearing is the same as that of the fan blade on the variable-pitch bearing.
Preferably, the simulated weight is an eccentric weight; the weight-imitating real object is positioned at the center of the variable-pitch bearing, and the gravity center of the weight-imitating real object is deviated from the lower position.
Preferably, the imitation weight real object is a solid standard real object, and the imitation weight real object is located at a position below the center of the variable pitch bearing.
Preferably, a computer communication bus on the computer is connected to a control circuit of the pitch control system, and the input and output nodes are disconnected to detect whether the operating state of the pitch control system is normal.
Preferably, the load loading motor is an electric direct current low-voltage servo motor.
Through the utility model discloses a test platform, each structure installation to the test bench frame on the medium-sized fan, then exert pressure for the reality that becomes the oar bearing according to force applying device imitation blade, and test through the various adverse circumstances of medium-sized fan in the reality of computer simulation, can test the load of the oar system of becoming fine, load governing speed is fast, the precision is high, whole test procedure is simple, the process data of torque variation can real-time storage, analysis in the test, the inconvenience of directly testing on medium-sized fan has been avoided.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model adopts the test platform frame of the test platform to connect the variable-pitch system of the medium-sized fan, and shares the variable-pitch bearing with the independent variable-pitch system during the test, thus having simple structure, small volume, low price, safety and reliability;
2. the bus functional interface of the loading platform is complete, Modbus, Canopen and EtherCAT communication scheduling is supported, load adjustment is sensitive, and torque precision is high;
3. the load control system is connected with the loading platform bus through a computer, and various working conditions possibly encountered by the wind wheel in the actual operation process are simulated and simulated through the computer to apply load torque to the variable pitch system; the system can also be connected with a load control system bus through a computer, the IO node of the load control system is controlled through the bus, and whether the action of the variable pitch system is normal is tested;
4. whole test platform interface adopts heavy load connector to connect to inserting, and the mode of connection is simple reliable, and the test procedure passes through computer bus control key and issues test command, through bus interaction, automatic storage test data, and whole test procedure is safe, simple, convenient.
Drawings
FIG. 1 is a schematic view of an independent variable pitch full condition load test platform for a medium sized wind turbine (load loading test);
FIG. 2 is a schematic rear view of FIG. 1;
FIG. 3 is a schematic diagram of an independent variable-pitch full-operating-condition load test platform for a medium-sized fan (real object gravity eccentricity test).
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
Example 1
The utility model provides an independent full operating mode load test platform that becomes oar for medium-sized fan, a full operating mode load test of the independent variable pitch system of wind generating set, as shown in figure 1, fig. 2, it includes test bench frame 1, be fixed with on the test bench frame 1 and become oar control system 3, become oar bearing 5, independent variable pitch system driving motor 10, become oar system drive reducer 11 is connected to the drive end of oar system driving motor 10, the inboard ring gear meshing of the variable pitch output gear 12 and the variable pitch bearing 5 of the variable pitch system drive reducer 11 output, it prevents the force application device that becomes oar bearing rotation still to be equipped with the same reverse moment of exerting pressure for variable pitch bearing 5 with the fan blade on the variable pitch bearing 5, it becomes oar system 3 to become oar system driving motor 10 connection variable pitch control system 3, it connects computer 4 to become oar control system 3, it is according to the rotational speed of normal during operation on the medium-sized fan through the variable pitch control system driving motor 10, The torque is turned. Will the utility model discloses a test bench frame 1 and become oar control system 3, become oar bearing 5, become oar system driving motor 10, become the airtight structure of the various abominable operating mode of oar system drive speed reducer 11, force applying device of ability analog simulation all arrange in, promptly the utility model discloses an among the test platform except that each part outside computer 4 all locates the airtight structure, computer 4 control connection airtight structure. The computer 4 simulates various severe working conditions of actual operation of the wind wheel to output equivalent torque to test the load performance index of the wind wheel, namely, the test bed frame 1 is in various severe working conditions which are equal to those of the wind wheel in actual operation.
In the embodiment, the force application device comprises a load loading motor 8, the driving end of the load loading motor 8 is connected with a load loading speed reducer 9, and a load output gear 2 at the output end of the load loading speed reducer 9 is meshed with a gear ring at the inner side of a variable pitch bearing 5; the rotation direction of the load loading motor 8 is opposite to that of the variable pitch system driving motor 10, wherein the load loading speed reducer 9 outputs torque at a speed of 0. A load control system 6 is fixed on the test bed frame 1, and the load control system 6 controls a load loading motor 8 to apply the same reverse torque to the variable pitch bearing 5 by applying the pressure to the fan blade so as to prevent the variable pitch bearing from rotating.
The working principle of the utility model is as follows:
the load loading motor 8 (servo motor) provides a reverse moment with the variable pitch bearing 5 through the load output gear 2 of the load loading speed reducer 9. After a variable pitch test is started, the independent variable pitch system drives a variable pitch output gear 12 of a variable pitch system driving speed reducer 11 to drive a variable pitch bearing 5 to rotate by controlling a variable pitch system driving motor 10, a load loading motor 8 applies reverse torque to the variable pitch bearing 5 through a load output gear 2 of a load loading speed reducer 9 to prevent the variable pitch bearing 5 from rotating, and the computer 4 simulates various severe working conditions of actual operation of the simulation wind wheel to output load performance indexes of the equivalent torque test wind wheel.
By the mode, the computer communication bus can be connected to the variable pitch control system 3, the computer 4 is communicated with the control circuit of the independent variable pitch system, whether the running state of the variable pitch control system 3 is normal or not is detected by disconnecting an IO (input/output) node, and meanwhile, the system can run in an independent simulation mode only by adjusting the test mode of the upper computer in the computer 4 in the whole test process, and the function of the independent variable pitch system is verified reliably and time-saving under full work conditions.
Example 2
In the embodiment, as shown in fig. 3, the force application device includes a dummy weight 7, and because the weight of the blade is heavier, the dummy weight 7 is an eccentric object and is placed on a transparent connecting plate 13, and the connecting plate 13 is fixed on the pitch bearing 5, so that the dummy weight 7 is located at the center of the pitch bearing 5. The weight-imitating real object 7 has the same weight as the fan blade, and the weight distribution of the weight-imitating real object 7 on the variable pitch bearing 5 is the same as that of the fan blade on the variable pitch bearing 5. The utility model discloses a test platform can support and drive the independent platform test more, can compatible material object gravity eccentric test.
The rest is the same as in example 1.
Example 3
In this embodiment, the force application device includes a weight-imitating real object 7, the weight-imitating real object 7 is a solid standard real object, the weight-imitating real object 7 is fixed on the transparent connecting plate 13, the connecting plate 13 is fixed on the pitch bearing 5, and because the weight of the blade is heavier, the weight-imitating real object 7 is arranged on the pitch bearing 5 and is located below the center.
The rest is the same as in example 1.
Claims (7)
1. An independent variable-pitch full-working-condition load test platform for a medium-sized fan is characterized by comprising a test bed frame (1), a variable-pitch control system (3) and a variable-pitch bearing (5) are fixed on the test bed frame (1), the variable-pitch system driving device comprises an independent variable-pitch system driving motor (10), wherein the driving end of the variable-pitch system driving motor (10) is connected with a variable-pitch system driving speed reducer (11), the output end of the variable-pitch system driving speed reducer (11) is provided with a variable-pitch output gear (12), the inner side of a variable-pitch bearing (5) is provided with a gear ring, the variable-pitch output gear (12) is meshed with the gear ring on the inner side of the variable-pitch bearing (5), the variable-pitch bearing (5) is also provided with a force application device which applies the same reverse moment to the variable-pitch bearing (5) by a fan blade to prevent the variable-pitch bearing from rotating, the variable-pitch system driving motor (10) is connected with a variable-pitch control system (3), and the variable-pitch control system (3) is connected with a computer (4); the test bed frame (1) and all parts fixed on the test bed frame (1) are arranged in a closed structure capable of simulating various severe working conditions, and the closed structure is controlled and connected by a computer (4).
2. The independent variable-pitch full-operating-condition load test platform for the medium-sized fan according to claim 1, wherein the force application device comprises a load loading motor (8), the driving end of the load loading motor (8) is connected with a load loading speed reducer (9), the output end of the load loading speed reducer (9) is provided with a load output gear (2), and the load output gear (2) is meshed with a gear ring on the inner side of a variable-pitch bearing (5); the rotating direction of the load loading motor (8) is opposite to that of the variable pitch system driving motor (10); a load control system (6) is fixed on the test bed frame (1), and the load control system (6) controls a load loading motor (8) to apply the same reverse torque to the variable pitch bearing (5) by applying a fan blade to prevent the variable pitch bearing from rotating.
3. The independent variable-pitch full-working-condition load test platform for the medium-sized fan is characterized in that the force application device comprises a weight-imitating real object (7), the weight-imitating real object (7) has the same weight as the fan blade, the weight-imitating real object (7) is fixed on a connecting plate (13), the connecting plate (13) is fixed on a variable-pitch bearing (5), and the weight distribution of the weight-imitating real object (7) on the variable-pitch bearing (5) is the same as that of the fan blade on the variable-pitch bearing (5).
4. The independent variable-pitch full-operating-condition load test platform for the medium-sized fan according to claim 3, wherein the weight-imitating real object (7) is a real object with eccentric weight; the weight-imitating real object (7) is positioned at the center of the variable-pitch bearing (5), and the gravity center of the weight-imitating real object (7) is deviated from the lower position.
5. The independent variable-pitch full-working-condition load test platform for the medium-sized fan according to claim 3, wherein the artificial weight object (7) is a solid standard object, and the artificial weight object (7) is located at a position below the center of the variable-pitch bearing (5).
6. The independent variable pitch full-operating-condition load test platform for the medium-sized wind turbine as claimed in claim 1, wherein a computer communication bus on the computer (4) is connected to a control circuit of the variable pitch control system (3), and the input and output nodes are disconnected to detect whether the operation state of the variable pitch control system (3) is normal or not.
7. The independent variable pitch full-working-condition load test platform for the medium-sized fan according to claim 2, wherein the load loading motor (8) is an electric direct-current low-voltage servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123171585.8U CN217206733U (en) | 2021-12-16 | 2021-12-16 | Independent variable-pitch full-working-condition load test platform for medium-sized fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123171585.8U CN217206733U (en) | 2021-12-16 | 2021-12-16 | Independent variable-pitch full-working-condition load test platform for medium-sized fan |
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| Publication Number | Publication Date |
|---|---|
| CN217206733U true CN217206733U (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123171585.8U Active CN217206733U (en) | 2021-12-16 | 2021-12-16 | Independent variable-pitch full-working-condition load test platform for medium-sized fan |
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| CN (1) | CN217206733U (en) |
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2021
- 2021-12-16 CN CN202123171585.8U patent/CN217206733U/en active Active
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