CN204740114U - Double -fed formula wind generating set shafting vibration testing device - Google Patents
Double -fed formula wind generating set shafting vibration testing device Download PDFInfo
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- CN204740114U CN204740114U CN201520452498.5U CN201520452498U CN204740114U CN 204740114 U CN204740114 U CN 204740114U CN 201520452498 U CN201520452498 U CN 201520452498U CN 204740114 U CN204740114 U CN 204740114U
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Abstract
The utility model discloses a double -fed formula wind generating set shafting vibration testing device, including the converter, a motor, the gear box, generator and artificial load, the converter links to each other with the motor, the generator links to each other with the artificial load, the output shaft of motor loops through first shaft coupling, adjustable eccentric flywheel, rotational speed torque sensing ware links to each other with the input shaft of gear box, the output shaft of gear box loops through rotary encoder, the second shaft coupling links to each other with the input shaft of generator, install acceleration sensor on the shell of gear box, rotational speed torque sensing ware, rotary encoder and acceleration sensor and a controller link to each other. The utility model has the advantages of simple structure, dependable performance, easily control, with low costs, be applicable to the indoor environment and use.
Description
Technical field
The utility model relates to a kind of wind power generating set shafting vibration proving installation, is specifically related to a kind of double-feedback aerogenerator group shafting vibration proving installation.
Background technology
The kinematic train of double-feedback aerogenerator group is the core of aerogenerator, and its kinematic train comprises: fan blade and hub assembly, gear case, generator and main bearing assembly.During the work of double-feedback aerogenerator group, axle system is subject to environment, self structure parameter and mechanical electric coupling and causes axle system easily to produce flexural vibrations and twisting vibration.When the amplitude of flexural vibrations and twisting vibration is excessive, the model frequency of frequency and aerogenerator close to time, easily cause aerogenerator recurring structure to lose efficacy.
Carry out at wind field that double-feedback aerogenerator group shafting vibration characteristic test difficulty of test is large, cost is high.Therefore, this type of experiment is opened in indoor usually.The test of Vibration device that development is suitable for the double-feedback aerogenerator group axle system of indoor environment becomes a technical matters urgently to be resolved hurrily.
Utility model content
The technical problems to be solved in the utility model overcomes the deficiency that prior art exists, provide that a kind of structure is simple, dependable performance, be easy to manipulate, cost is low, be applicable to the double-feedback aerogenerator group shafting vibration proving installation that indoor environment uses.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of double-feedback aerogenerator group shafting vibration proving installation, comprise frequency converter, motor, gear case, generator and fictitious load, described frequency converter is connected with motor, described generator is connected with fictitious load, the output shaft of described motor is successively by the first shaft coupling, adjustable eccentric flywheel, torque and speed sensors is connected with the input shaft of gear case, the output shaft of described gear case passes through rotary encoder successively, second shaft coupling is connected with the input shaft of generator, the shell of described gear case is provided with acceleration transducer, described torque and speed sensors, rotary encoder is connected with a controller with acceleration transducer.
Above-mentioned proving installation, preferably, described adjustable eccentric flywheel comprises flywheel body and balancing weight, and described balancing weight is connected on the outer circumference surface of flywheel body by screw is dismountable.
Above-mentioned proving installation, preferably, the output shaft of described rotary encoder and gear case is coaxially arranged.
Above-mentioned proving installation, preferably, described rotary encoder is often transfer out the rotary encoder that number of pulses is more than or equal to 60.
Above-mentioned proving installation, preferably, described acceleration transducer is 3-axis acceleration sensor.
Above-mentioned proving installation, preferably, described acceleration transducer is installed on the end cap of gearbox output shaft side.
Above-mentioned proving installation, preferably, described fictitious load is resistive load system.
Compared with prior art, the utility model has the advantage of: the utility model double-feedback aerogenerator group shafting vibration proving installation can test the vibration characteristics of double-feedback aerogenerator group axle system under the operating mode of different rotating speeds, different loads torque and different disturbing moment.Its structure is simple, dependable performance, be easy to manipulation, cost is low, and be applicable to indoor environment and use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model double-feedback aerogenerator group shafting vibration proving installation.
Fig. 2 is the broken section structural representation of adjustable eccentric flywheel in the utility model.
Marginal data:
1, frequency converter; 2, motor; 3, gear case; 4, generator; 5, fictitious load; 6, the first shaft coupling; 7, adjustable eccentric flywheel; 71, flywheel body; 72, balancing weight; 73, screw; 8, torque and speed sensors; 9, rotary encoder; 10, the second shaft coupling; 11, acceleration transducer; 12, controller.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the utility model double-feedback aerogenerator group shafting vibration proving installation, comprise frequency converter 1, motor 2, gear case 3, generator 4 and fictitious load 5, frequency converter 1 is connected with motor 2, generator 4 is connected with fictitious load 5, the output shaft of motor 2 is successively by the first shaft coupling 6, adjustable eccentric flywheel 7, torque and speed sensors 8 is connected with the input shaft of gear case 3, the output shaft of gear case 3 is successively by rotary encoder 9, second shaft coupling 10 is connected with the input shaft of generator 4, the shell of gear case 3 is provided with acceleration transducer 11, acceleration transducer 11 adopts existing 3-axis acceleration sensor, can simultaneously detection of gear case 3 horizontal direction, vertical direction and axial vibration.Torque and speed sensors 8, rotary encoder 9 are connected with a controller 12 with acceleration transducer 11.
In this proving installation, the adjustment of motor 2 rotating speed can be realized by the output frequency changing frequency converter 1, thus because ambient wind velocity changes the generator shaft speed fluctuation caused when realizing the work of double-feedback aerogenerator group; By regulating the eccentric mass of adjustable eccentric flywheel 7, the eccentric moment that applies to gear case 3 input shaft of external environment when not only can simulate the work of double-fed type wind power generating set, but also different model double-feedback aerogenerator group can be simulated act on moment of inertia on gear case 3 input shaft; Generator 4 can realize loading by fictitious load 5.The rotating speed detected according to torque and speed sensors 8 and torque, can calculate the operating power obtaining gear case 3 input shaft, realize the test of gear case 3 input shaft operating power; According to the acceleration that acceleration transducer 11 detects, the flexural vibration characteristics obtaining axle system can be calculated; According to the data that rotary encoder 9 detects, the Torsional Vibration Characteristics obtaining axle system can be calculated.
In the present embodiment, as shown in Figure 2, adjustable eccentric flywheel 7 comprises flywheel body 71 and balancing weight 72, balancing weight 72 is by the dismountable outer circumference surface being connected to flywheel body 71 of screw 73, by changing the balancing weight 72 with Different Weight, the change of adjustable eccentric flywheel 7 eccentric moment can be realized.
In the present embodiment, rotary encoder 9 is coaxially arranged with the output shaft of gear case 3, and rotary encoder 9 is often transfer out the rotary encoder that number of pulses is more than or equal to 60.Acceleration transducer 11 is installed on the end cap of gear case 3 output shaft side.Fictitious load 5 is resistive load system, and resistive load system is prior art, does not repeat them here.
The method of testing of this proving installation under different operating mode is as follows:
Double-feedback aerogenerator shafting vibration method of testing under axle system different rotating speeds: keep the size of the quality of balancing weight 72 and fictitious load 5 constant.First the frequency of operation of frequency converter 1 is arranged first frequency, actuating motor 2, when after pilot system axle system stabilization of speed, controller 12 reads the output signal of torque and speed sensors 8, acceleration transducer 11 and rotary encoder 9, the power of gear case 3 input shaft is obtained by the tach signal and dtc signal calculating torque and speed sensors 8, obtained the flexural vibration characteristics of axle system by the vibration signal analyzing acceleration transducer 11, obtained the Torsional Vibration Characteristics of axle system by the output signal analyzing rotary encoder 9.After having tested, change the frequency of operation of frequency converter 1 to second frequency, repeat said process, double-feedback aerogenerator shafting vibration characteristic under axle system different rotating speeds can be obtained.
Double-feedback aerogenerator shafting vibration method of testing under the different loads torque of axle system: keep the frequency of operation of the quality of balancing weight 72 and frequency converter 1 constant.Actuating motor 2, be first the first power by the loading power setting of fictitious load 5, when after pilot system axle system stabilization of speed, controller 12 reads the output signal of torque and speed sensors 8, acceleration transducer 11, rotary encoder 9, the power of gear case 3 input shaft is obtained by the tach signal and dtc signal calculating torque and speed sensors 8, obtained the flexural vibration characteristics of axle system by the vibration signal analyzing acceleration transducer 11, obtained the Torsional Vibration Characteristics of axle system by the output signal analyzing rotary encoder 9.After having tested, change loading power to the second power of fictitious load 5, repeat said process, double-feedback aerogenerator shafting vibration characteristic under the different loads torque of axle system can be obtained.
Double-feedback aerogenerator shafting vibration method of testing under the different disturbing moment of axle system: keep the size of the frequency of operation of frequency converter 1 and fictitious load 5 constant.First the balancing weight 72 of the first weight is installed in flywheel body 71, actuating motor 2, when after pilot system axle system stabilization of speed, controller 12 reads the output signal of torque and speed sensors 8, acceleration transducer 11, rotary encoder 9, the power of gear case 3 input shaft is obtained by the tach signal and dtc signal calculating torque and speed sensors 8, obtained the flexural vibration characteristics of axle system by the vibration signal analyzing acceleration transducer 11, obtained the Torsional Vibration Characteristics of axle system by the output signal analyzing rotary encoder 9.The balancing weight 72 of the second weight is installed in flywheel body 71 after shutting down by pilot system, repeats said process, can obtain double-feedback aerogenerator shafting vibration characteristic under different disturbing moment.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment.For those skilled in the art, do not departing from the improvement that obtains under the utility model technical conceive prerequisite and conversion also should be considered as protection domain of the present utility model.
Claims (7)
1. a double-feedback aerogenerator group shafting vibration proving installation, it is characterized in that: comprise frequency converter (1), motor (2), gear case (3), generator (4) and fictitious load (5), described frequency converter (1) is connected with motor (2), described generator (4) is connected with fictitious load (5), the output shaft of described motor (2) is successively by the first shaft coupling (6), adjustable eccentric flywheel (7), torque and speed sensors (8) is connected with the input shaft of gear case (3), the output shaft of described gear case (3) is successively by rotary encoder (9), second shaft coupling (10) is connected with the input shaft of generator (4), the shell of described gear case (3) is provided with acceleration transducer (11), described torque and speed sensors (8), rotary encoder (9) is connected with a controller (12) with acceleration transducer (11).
2. proving installation according to claim 1, it is characterized in that: described adjustable eccentric flywheel (7) comprises flywheel body (71) and balancing weight (72), described balancing weight (72) is by the dismountable outer circumference surface being connected to flywheel body (71) of screw (73).
3. proving installation according to claim 1, is characterized in that: described rotary encoder (9) is coaxially arranged with the output shaft of gear case (3).
4. proving installation according to claim 1, is characterized in that: described rotary encoder (9) is for often to transfer out the rotary encoder that number of pulses is more than or equal to 60.
5. proving installation according to claim 1, is characterized in that: described acceleration transducer (11) is 3-axis acceleration sensor.
6. proving installation according to claim 1, is characterized in that: described acceleration transducer (11) is installed on the end cap of gear case (3) output shaft side.
7. proving installation according to claim 1, is characterized in that: described fictitious load (5) is resistive load system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520452498.5U CN204740114U (en) | 2015-06-29 | 2015-06-29 | Double -fed formula wind generating set shafting vibration testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520452498.5U CN204740114U (en) | 2015-06-29 | 2015-06-29 | Double -fed formula wind generating set shafting vibration testing device |
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| CN204740114U true CN204740114U (en) | 2015-11-04 |
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| CN201520452498.5U Expired - Fee Related CN204740114U (en) | 2015-06-29 | 2015-06-29 | Double -fed formula wind generating set shafting vibration testing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338686A (en) * | 2016-08-15 | 2017-01-18 | 惠而浦（中国）股份有限公司 | Motor centrifugal switch durability test device and test method |
| CN106679970A (en) * | 2016-12-13 | 2017-05-17 | 华南理工大学 | Method and device for dual clutch transmission rattle simulation experiment |
| CN113533961A (en) * | 2021-07-20 | 2021-10-22 | 成都中车电机有限公司 | Double-fed wind driven generator test coupling device |
| CN113701948A (en) * | 2021-08-27 | 2021-11-26 | 湖南工程学院 | Rotating shaft eccentric load loading device and loading method |
| CN113720606A (en) * | 2021-08-30 | 2021-11-30 | 湖南工程学院 | Tool for designing shafting of direct-drive permanent magnet wind turbine generator and design method |
| CN113720507A (en) * | 2021-08-30 | 2021-11-30 | 湖南工程学院 | Wind turbine generator torque loading equipment and method based on hydraulic control |
| CN113720507B (en) * | 2021-08-30 | 2024-06-11 | 湖南工程学院 | Wind turbine generator torque loading equipment and loading method based on hydraulic control |
-
2015
- 2015-06-29 CN CN201520452498.5U patent/CN204740114U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338686A (en) * | 2016-08-15 | 2017-01-18 | 惠而浦（中国）股份有限公司 | Motor centrifugal switch durability test device and test method |
| CN106679970A (en) * | 2016-12-13 | 2017-05-17 | 华南理工大学 | Method and device for dual clutch transmission rattle simulation experiment |
| CN106679970B (en) * | 2016-12-13 | 2019-05-14 | 华南理工大学 | Double-clutch speed changer knock nature imitation experiment device and method |
| CN113533961A (en) * | 2021-07-20 | 2021-10-22 | 成都中车电机有限公司 | Double-fed wind driven generator test coupling device |
| CN113701948A (en) * | 2021-08-27 | 2021-11-26 | 湖南工程学院 | Rotating shaft eccentric load loading device and loading method |
| CN113701948B (en) * | 2021-08-27 | 2024-04-05 | 湖南工程学院 | Rotating shaft eccentric load loading device and loading method |
| CN113720606A (en) * | 2021-08-30 | 2021-11-30 | 湖南工程学院 | Tool for designing shafting of direct-drive permanent magnet wind turbine generator and design method |
| CN113720507A (en) * | 2021-08-30 | 2021-11-30 | 湖南工程学院 | Wind turbine generator torque loading equipment and method based on hydraulic control |
| CN113720507B (en) * | 2021-08-30 | 2024-06-11 | 湖南工程学院 | Wind turbine generator torque loading equipment and loading method based on hydraulic control |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 Termination date: 20170629 |