CN202383260U - Universal test bench for performance testing of permanent magnet generator - Google Patents
Universal test bench for performance testing of permanent magnet generator Download PDFInfo
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- CN202383260U CN202383260U CN2012200022011U CN201220002201U CN202383260U CN 202383260 U CN202383260 U CN 202383260U CN 2012200022011 U CN2012200022011 U CN 2012200022011U CN 201220002201 U CN201220002201 U CN 201220002201U CN 202383260 U CN202383260 U CN 202383260U
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- coupling mechanism
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Abstract
The utility model relates to a universal test bench for performance testing of a permanent magnet generator, which comprises a rack, wherein a lifting mechanism is arranged on the rack. The lifting mechanism comprises a lifting platform, and an electromotor and a disc coupler which is in transmission connection with an output shaft of the generator are installed on the lifting platform. The output end of the disc coupler is used for being in transmission connection with an outer rotor of a generator specimen and is vertical downward. A fixed seat is arranged between the lifting platform and a base of the rack, and the fixed seat is corresponding to the output end position of the disc coupler and is used for fixing and installing the generator specimen. The test bench has the advantages of simple structure, convenience in manufacture, simpleness and convenience in operation, low cost and easiness in installation and maintenance.
Description
Technical field
The utility model relates to the universal test bench rack device that a kind of external rotor permanent magnet generator performance simple in structure, easily manufactured, with low cost, that be easy to installation and maintenance is tested.
Background technology
Wind-power electricity generation is the important form of Wind Power Utilization, and wind energy is the energy renewable, pollution-free, that energy is big, prospect is wide, and greatly developing clean energy resource is the strategic choice of countries in the world.The permanent magnet direct-drive wind generator system is one of the most wide wind generator system of present development prospect; It has saved easy out of order gear case; And generator adopts permanent-magnet structure; Save easy consumption mechanical parts such as brush and collector ring, reduced the production cost and the maintenance cost of total system.The motor of in the permanent magnet direct-drive wind generator system, choosing which kind of structure directly affects the serviceability of whole generating system; The external rotor permanent magnet generator is as novel a kind of electric generator structure wherein, has that magnetic leakage factor is little, inertia is big, electromagnetic torque is big, is easy to realize multi-polar structure, can under low speed, moves, numerous advantages such as efficient height.External rotor permanent magnet generator its domestic application is very limited; Its major technology means only have some developed countries to grasp; Exploration for external rotor permanent magnet generator designs method is extremely urgent; Therefore be badly in need of technical support being provided to the design of outer rotor magneto; So all need carry out the correction of generator performance analysis and design parameter with this in the generator designs performance history and after machining, improve the designing technique means of external rotor permanent magnet generator to its checking that makes an experiment.
The utility model content
The task of the utility model provides the universal test bench rack device of a kind of external rotor permanent magnet generator performance test, in order to fill up prior art about in this respect blank.
For realizing above-mentioned purpose; The scheme of the utility model is: a kind of magneto Performance Detection universal test bench; Comprise frame; Frame is provided with an elevating mechanism, and elevating mechanism comprises a hoistable platform, the disc type coupling mechanism that motor is installed on the hoistable platform and is in transmission connection with the generator output shaft; The output terminal that the outer rotor with the generator test specimen is in transmission connection that is used for of this disc type coupling mechanism is provided with straight down, be provided with between the base of said hoistable platform and frame and said disc type coupling mechanism output end position is corresponding, be used for fixing the holder that the generator test specimen is installed.
Said elevating mechanism is a screw mandrel screw elevating mechanism, and this screw mandrel screw elevating mechanism comprises the screw mandrel that is rotatably assorted with frame, and rotates and to be assemblied in the nut on the screw mandrel, and said hoistable platform is an adjustment support of fixing with said nut.
The internal rotor of said disc type coupling mechanism is connected with said motor is coaxial, and the external stator of disc type coupling mechanism is fixed on the said adjustment support; The internal rotor of disc type coupling mechanism is used for being connected with the outer rotor of generator is coaxial; Said holder is used for being fixedly connected with the inner stator of generator.
Said screw mandrel rotates through bearing and is assemblied on the frame.
Said screw mandrel top is provided with the handwheel that is used for rotary screw.
Said magneto Performance Detection universal test bench also is provided with experiment control system; Experiment control system comprises said Variable Frequency and Speed Adjusting of Electromotor device of drive controlling and the computing machine that is used for analytical calculation, and computing machine is gathered said variable-frequence governor tach signal, said disc type coupling mechanism torque signal and outer rotor generator test specimen output electric power signal through the AD sampling unit.
The test platform structure of the utility model is simple, and is easily manufactured, easy and simple to handle, and with low cost, is easy to installation and maintenance.
Description of drawings
Fig. 1 is the forward junction composition of the utility model;
Fig. 2 is the side direction structural drawing of the utility model;
Fig. 3 is the test figure flow diagram of the utility model;
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed explanation.
Like Fig. 1, Fig. 2; A kind of external rotor permanent magnet generator performance detects universal test bench; Comprise frame 2; Frame 2 is provided with a screw mandrel screw elevating mechanism, and this screw mandrel screw elevating mechanism comprises that a rotation is assemblied in the screw mandrel 3 on frame, is equipped with the nut 6 in the vertical direction motion on the screw mandrel 3; Be fixed with the adjustment support 11 that is used for power output and torque measurement on the nut 6; The disc type coupling mechanism that the adjustment support is provided with motor 10 and is in transmission connection with motor output shaft, the output terminal of disc type coupling mechanism is provided with straight down, is provided with the output end position holder corresponding, that be used for fixing installation outer rotor generator test specimen with the disc type coupling mechanism between adjustment support 11 and the gantry base 1.
Motor adopts threephase asynchronous to provide, and the power of threephase asynchronous can be selected according to the design power of generator, can satisfy the operation conditions of generator under different rotating speeds of different capacity.In the present embodiment, the screw mandrel top is provided with the handwheel that is used for rotary screw, drives with manpower.As other embodiments, screw mandrel screw elevating mechanism also can adopt other to substitute like elevating mechanisms such as hydraulic pressure, air pressure.
As shown in Figure 3; The external rotor permanent magnet generator performance detects universal test bench and also is provided with experiment control system; Experiment control system comprises said Variable Frequency and Speed Adjusting of Electromotor device of drive controlling and the computing machine that is used for analytical calculation, and computing machine is gathered said variable-frequence governor tach signal, said disc type coupling mechanism torque signal and outer rotor generator test specimen output electric power signal through the AD sampling unit.
Fig. 2 is the side direction structural drawing of the utility model.This device has fixed part and movable part to constitute.Fixed part is: test-bed base 1 is fixed on the pedestal of ground through foot bolt; The upright support frame 2 of test-bed places base 1 one sides through on the base plate 1 that is bolted to test-bed; Two guiding support posts 4 connect firmly the both sides at upright support frame 2 front panels through axis of guide bearing 9; Bearing 20 is socketed in the upper and lower sides of adjustment screw mandrel 3, and adjustment screw mandrel 3 connects firmly the front panel central authorities at upright support frame 2 through bearing seat 21, and handwheel 8 is fixed on the top of screw mandrel 3 through key; Frequency converter and data acquisition unit place the side panel of upright support frame 2.Movable part comprises: adjustment support 11 is socketed on two guiding support posts 4 through axis of guide bearing 7 levels; The nut 5 of screw mandrel is fixed on adjustment support 11 back sides; And be socketed on the screw mandrel 3; Rotate handwheel 8 and move up and down through guiding support post 4, after adjusting adjustment support 11, tighten up axis of guide bearing 7 through set nut 6 through screw mandrel 3 drive nuts 5 traction adjustment supports 11; Motor 10 is fastened on adjustment support 11 tops through bolt; Shaft of motor passes from adjustment support 11, and through internal rotor 14 coaxial are connected of flange 12 with key and disc type coupling mechanism, the external stator 13 of disc type coupling mechanism connects firmly in adjustment support 11 bottoms through bolt; The internal rotor 14 of disc type coupling mechanism carries out coaxial the connection with the outer rotor 16 of generator through flange 15; The axle of the inner stator 17 of generator is fixed on the test generator base plate 19 through flange 18, and flange 18 carries out bolt with test generator base plate 19 and is connected, tests generator base plate 19 and test-bed base 1 and is connected through bolt.Above-described motor, disc type coupling mechanism are coaxial the connection with generator; The wiring of motor is connected with variable-frequence governor; The output line of disc type coupling mechanism is connected with data acquisition system (DAS); The upright support of test-bed partly is the steel plate weldment, the containment vessel that the test-bed back has steel plate to process.The forward junction composition of the utility model is referring to Fig. 1.
Through changing flange 15,18, can make this experiment table satisfy the testing requirements of the external rotor permanent magnet generator test specimen of different model.
This device adopts following manner that the generator test specimen is installed when the performance test test of carrying out the external rotor permanent magnet generator: loosening set nut 6, rotate handwheel 8; Make adjustment support 11 up along guiding support post 4; When treating that the space is enough, with generator be placed on the test generator base plate 19 tops, with generator inner stator 17 the axle be fixed on the ring flange 18; With ring flange 18 lockings, make the inner stator 17 of generator fixing with bolt; After accomplishing said process, the bottom of ring flange 15 is screwed above generator outer rotor 16; Rotate handwheel 8; Make adjustment support 11 descending; Handwheel 8 stops operating when the internal rotor 14 of disc type coupling mechanism touches ring flange 15 tops; Rotation lock this moment nut 6 will be adjusted support 11 and be locked on the guiding support post 4, and the internal rotor 14 of the top of ring flange 15 and disc type coupling mechanism is through bolt tightening.The unloading process and the installation process of generator are opposite.
The external rotor permanent magnet generator performance testing experiment content of this device comprises: utilize the mechanical energy of motor output to simulate the energy that other rotates generator.Control the velocity of rotation of threephase asynchronous through the frequency of regulating variable-frequence governor; Because generator is that coaxial directly driving is connected with motor; So the rotation speed n of generator is identical with motor, the generator speed value can directly be read by frequency converter, and the disc type coupling mechanism detects the output torque T of motor; The used load of generator test adopts resistance box to realize, voltage, current capability that the test generator is exported under zero load and different loads situation.The electrical quantity of the torque parameter of disc type coupling mechanism output and generator output is transformed to the computer-readable digital signal through data acquisition elements such as A/D conversions; Computing machine is placed on distance test (DT) stand place far away, the experimenter can through display directly come read data information or with data recording in computing machine.
The test method concrete steps of the utility model are following:
1, external rotor permanent magnet generator test specimen is mounted on the testing table, the central axis of central shaft and motor and disc type coupling mechanism that makes generator is on same axis;
2, be fixed in the flange on the test generator base plate with the inner stator axle of bolt with generator, the inner stator of the outer rotor of generator and disc type coupling mechanism links together through flange, accomplishes the installation of external rotor permanent magnet generator test specimen;
3, with the variable-frequence governor that is wired to of motor;
4, disc type coupling mechanism, resistance box are connected with data acquisition unit;
5, data acquisition unit is connected with computer system;
6, start variable-frequence governor; Utilize frequency converter to regulate the rotating speed of motor; Measure the no-load performance of generator under different rotating speeds; Output electric energy characteristic under the different rotating speeds identical load, the output electric energy characteristic under the different rotating speeds different loads and the output electric energy characteristic under the same rotational speed different loads.
7, the torque signal that measures of the electrical quantity signal of generator output and disc type coupling mechanism is passed to computing machine through data acquisition unit; Through data processing software signal parameter is noted, can be obtained the performance parameter (efficiency eta of the power input P axle of generator speed n, motor reel, generated output power P, generator etc.) of external rotor permanent magnet generator through signal parameter being carried out analyzing and processing.
Fig. 3 is the wind wheel Performance Detection test figure flow diagram of the utility model.
When the performance test test of carrying out the external rotor permanent magnet generator; Because motor is that coaxial directly driving is connected with generator; So the rotating speed of motor promptly is the rotating speed of generator; Can directly read rotation speed n by frequency converter, the output torque that the disc type coupling mechanism records motor reel is T, and rotating speed and torque through motor can obtain the mechanical energy that motor is input to generator:
The output power of generator is shown by load box, can obtain the output power (wherein cos α is the power factor of load) of generator through the character of testing voltage, electric current and the load of exporting:
P＝3UI?cosα (2)
Can draw the efficient of generator by above gained data:
Claims (6)
1. magneto Performance Detection universal test bench; It is characterized in that; Comprise frame; Frame is provided with an elevating mechanism, and elevating mechanism comprises a hoistable platform, the disc type coupling mechanism that motor is installed on the hoistable platform and is in transmission connection with the generator output shaft; The output terminal that the outer rotor with the generator test specimen is in transmission connection that is used for of this disc type coupling mechanism is provided with straight down, be provided with between the base of said hoistable platform and frame and said disc type coupling mechanism output end position is corresponding, be used for fixing the holder that the generator test specimen is installed.
2. a kind of magneto Performance Detection universal test bench according to claim 1; It is characterized in that; Said elevating mechanism is a screw mandrel screw elevating mechanism; This screw mandrel screw elevating mechanism comprises the screw mandrel that is rotatably assorted with frame, and rotates and to be assemblied in the nut on the screw mandrel, and said hoistable platform is an adjustment support of fixing with said nut.
3. a kind of magneto Performance Detection universal test bench according to claim 1 is characterized in that the internal rotor of said disc type coupling mechanism is connected with said motor is coaxial, and the external stator of disc type coupling mechanism is fixed on the said adjustment support; The internal rotor of disc type coupling mechanism is used for being connected with the outer rotor of generator is coaxial; Said holder is used for being fixedly connected with the inner stator of generator.
4. a kind of magneto Performance Detection universal test bench according to claim 2 is characterized in that, said screw mandrel rotates through bearing and is assemblied on the frame.
5. a kind of magneto Performance Detection universal test bench according to claim 4 is characterized in that said screw mandrel top is provided with the handwheel that is used for rotary screw.
6. according to claim 2 or 3 or 4 or 5 described a kind of magneto Performance Detection universal test benches; It is characterized in that; Said magneto Performance Detection universal test bench also is provided with experiment control system; Experiment control system comprises said Variable Frequency and Speed Adjusting of Electromotor device of drive controlling and the computing machine that is used for analytical calculation, and computing machine is gathered said variable-frequence governor tach signal, said disc type coupling mechanism torque signal and outer rotor generator test specimen output electric power signal through the AD sampling unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200022011U CN202383260U (en) | 2012-01-04 | 2012-01-04 | Universal test bench for performance testing of permanent magnet generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200022011U CN202383260U (en) | 2012-01-04 | 2012-01-04 | Universal test bench for performance testing of permanent magnet generator |
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| CN202383260U true CN202383260U (en) | 2012-08-15 |
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| CN2012200022011U Expired - Fee Related CN202383260U (en) | 2012-01-04 | 2012-01-04 | Universal test bench for performance testing of permanent magnet generator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680892A (en) * | 2012-01-04 | 2012-09-19 | 河南科技大学 | Universal test bench for detecting performance of permanent magnet generator |
| CN104965173A (en) * | 2015-06-02 | 2015-10-07 | 重庆交通大学 | Pure electric vehicle motor performance test device |
| CN105424246A (en) * | 2015-12-28 | 2016-03-23 | 天津中科华瑞电气技术开发有限公司 | Vertical submersed motor performance test platform |
-
2012
- 2012-01-04 CN CN2012200022011U patent/CN202383260U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680892A (en) * | 2012-01-04 | 2012-09-19 | 河南科技大学 | Universal test bench for detecting performance of permanent magnet generator |
| CN102680892B (en) * | 2012-01-04 | 2015-10-28 | 河南科技大学 | Magneto Performance Detection universal test bench |
| CN104965173A (en) * | 2015-06-02 | 2015-10-07 | 重庆交通大学 | Pure electric vehicle motor performance test device |
| CN104965173B (en) * | 2015-06-02 | 2018-04-03 | 重庆交通大学 | Pure electric automobile motor performance test apparatus |
| CN105424246A (en) * | 2015-12-28 | 2016-03-23 | 天津中科华瑞电气技术开发有限公司 | Vertical submersed motor performance test platform |
| CN105424246B (en) * | 2015-12-28 | 2018-08-28 | 天津中科华瑞电气技术开发有限公司 | A kind of vertical immersed motor Testing Platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20150104 |
|
| EXPY | Termination of patent right or utility model |