CN201569525U - Hub type liquid cooling permanent-magnet dynamometer - Google Patents
Hub type liquid cooling permanent-magnet dynamometer Download PDFInfo
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- CN201569525U CN201569525U CN2009202465243U CN200920246524U CN201569525U CN 201569525 U CN201569525 U CN 201569525U CN 2009202465243 U CN2009202465243 U CN 2009202465243U CN 200920246524 U CN200920246524 U CN 200920246524U CN 201569525 U CN201569525 U CN 201569525U
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Abstract
A hub type liquid cooling permanent-magnet dynamometer belongs to testing equipment of power generating machines and relates to the hub type liquid cooling permanent-magnet dynamometer of water circulation cooling. The dynamometer comprises a rotor, a stator and a loading mechanism; the rotor comprises a magnet holding rack connected with a power shaft and a plurality of permanent magnets fixed at the circumference of the magnet holding rack; the stator adopts a stator hub; the stator hub is provided with water channels which constitute a liquid cooing device; the rotor is connected with the loading mechanism and can slide axially under the control of the loading mechanism; and the loading mechanism comprises a bearing connected with the rotor, a bearing outer ring, a plurality of pull rods, a disk, a screw rod, a stepping motor and a controller connected with the stepping motor. In the utility model, load torque generated by the dynamometer is easy to be adjusted continuously and the permanent magnets take the place of excitation coils of an eddy current dynamometer, so that copper resource is saved, electrical energy is not consumed during steady operation, and the load torque is steady and perdurable at high speed; and the enclosed water circulation cooling system has good cooling effect and produces no noises, and therefore is suitable for occasions with high requirement to noises.
Description
Technical field
The utility model belongs to the power machine testing apparatus, relates to a kind of hub type liquid cooling permanent magnet dynamometer of water cycle cooling.
Background technology
Dynamometer machine also claims loader, is mainly used in the power of test engine, also can be used as the load equipment of equipment such as gear case, wheel box, reductor, is used to test their kinetic parameter.Using wider dynamometer machine at present is electric eddy current dynamometer, and electric eddy current dynamometer produces the reverse load moment of torsion by the eddy current of variation magnetic field induction, and load is affacted on the output shaft of test engine, can record the power of engine.
Name is called the disclosed disc type liquid cooling permanent magnet dynamometer of Chinese patent ZL200820079243.9 of " a kind of water-cooling permanent magnet eddy current dynamometer ".This permanent magnet dynamometer produces braking moment by the eddy current of the magnetic field induction of variation, and the copper resource is saved in almost unregulated power consumption.Arrange circulation waterway in this external stator, the radiating effect ideal, use can be not overheated continuously, guarantees the stable of braking ability.But the stator discs of this permanent magnet dynamometer and the distance between the rotor disk become nonlinear relationship with the dynamometer machine moment of torsion, and load torque is very responsive to the distance between stator discs and the rotor disk, is difficult to regulate moment of torsion.
Structure of the present utility model can continuous electrodeless adjusting braking moment, by the control step rotating speed of motor, realizes the adjustable of braking moment pace of change.
Summary of the invention
The utility model provides a kind of hub formula permanent-magnet eddy current dynamometer machine that controlled load maintainer can continuous electrodeless adjusting braking moment that utilizes, and makes load torque be easy to continuous adjusting.
The utility model has been taked following technical scheme to achieve these goals: this device mainly comprises rotor, stator and the load maintainer that connects mutually with line shaft.Wherein, described rotor reaches 10～18 blocks of permanent magnets that evenly are fixed on magnet retainer circumference for the circular ring magnet retainer, the magnet retainer is enclosed within on the line shaft, and is connected with line shaft by spline, and the magnet retainer can be controlled lower edge line shaft slip at load maintainer; The described stator stator hub that the conductive material that is provided with the chilled water water channel constitutes of serving as reasons, the stator hub is provided with around the magnet retainer, and less than the moving range of magnet retainer.
Described load maintainer comprises the bearing that is connected with the magnet retainer and outer race, the pull bar that is connected with outer race, the disk that is connected with pull bar, the screw rod that spins with disk, the stepper motor that is connected with screw rod, the controller that links to each other with stepper motor.
Described chilled water water channel is the circulation water channel through heating radiator.
Described controller comprises the programmable controller that is used for storage control program and control step motor movement, be used to measure to line shaft torque and the torque gauge that is connected with programmable controller, be used for restrict rotor along line shaft slide into the limit near switch, the touch-screen that is connected with programmable controller.
Principle of work of the present utility model and process are: during work, rotary screw, disk is moved axially, pushing drawing rod and rotor to stator hub one side shaft that is furnished with water channel to moving, the magnetic line of force that permanent magnet sends on the stator hub septum magnet retainer produces eddy current in the stator hub, and produces the moment of torsion that hinders rotor rotation, this moment of torsion acts on the line shaft by the magnet retainer, thereby line shaft is produced load.By adjusting disk position, the relative axial position of scalable stator hub and rotor, thus regulate stator hub and the interactional area of rotor, can realize the continuous adjusting of dynamometer machine load torque.When not needing to load, disk is pulled out the water channel end face fully with rotor, and line shaft is not subjected to moment of torsion, thereby removes the loading to line shaft.Liquid in the cooling water channel is taken away the heat that produces on the stator hub, behind radiator heat-dissipation, is back to the work that moves in circles in the dynamometer machine.Regulate the rotating speed of stepper motor, the speed that moves axially that can regulate disk, the pace of change of promptly regulating moment of torsion.
Major advantage of the present utility model is: the load torque that dynamometer machine produces is easy to continuous adjusting; Permanent magnet replaces the field coil of electric eddy current dynamometer, saves the copper resource; Load torque is stable not lasting when having power consumption, high speed during steady operation; Closed hydrologic cycle cooling system good cooling results does not produce noise, is applicable to the demanding occasion of noise.
Description of drawings
(during work) structural representation when Fig. 1 is the utility model loading
(during inoperative) structural representation when Fig. 2 is the utility model unloading
Among the figure: 1, water inlet, 2, preceding bearing, 3, the magnet retainer, 4, line shaft, 5, bearing, 6, bearing, 7, outer race, 8, permanent magnet, 9, water delivering orifice, 10, the stator hub, 11, pull bar, 12, rear support, 13, disk, 14, screw rod, 15, controller, 16, stepper motor.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Torque loads automatic control structure of the present utility model such as Fig. 1～shown in Figure 2, comprise preceding bearing 2 and rear support 12, be fixed on two stator hub 10, rotor and load maintainers between the bearing, between bearing 2 and the rear support 12, load maintainer was placed on the rear support 12 before its rotor was fixed in by bearing 5.
Preceding bearing 2 and rear support 12 connect by the stator hub of bolt and ring-type.The below of stator hub 10 is provided with water channel water inlet 1, and the top is provided with water channel water delivering orifice 9.The heat that produces on the stator hub 10 during dynamometer machine work is taken away by the liquid coolant in the cooling water channel, and liquid coolant is back to the work that moves in circles in the dynamometer machine behind radiator heat-dissipation.Stator hub 10 adopts iron material to make.
Rotor is made up of plurality of permanent magnets 8 and magnet retainer 3,10 to 18 blocks of tile shape permanent magnets 8 are uniformly distributed along the circumference on magnet retainer 3, permanent magnet 8 external diameters and stator hub 10 internal diameters keep 1～1.5mm gap, and line shaft 4 connects by spline gives magnet retainer 3 with transmission of power.
Load maintainer comprises the bearing 6 that is connected with magnet retainer 3, outer race 7, the pull bar 11 that is connected with outer race 7, the disk 13 that is connected with pull bar 11, the screw rod 14 that spins with disk 13, the stepper motor 16 that is connected with screw rod 14, the controller 15 that links to each other with stepper motor.Rotor connects by bearing 6 and outer race 7, and outer race 7 connects with 2 to 4 pull bars 11 by bolt, and pull bar 11 usefulness bolts and disk 13 connect, and disk 13 connects by screw rod 14 and stepper motor 16, and stepper motor 16 is connected on the rear support 12.Controller wherein comprises programmable controller, torque gauge, near switch and touch-screen.Programmable controller is used for the motion of storage control program and control step motor.Torque gauge is used for measuring the torque of the dynamometer machine course of work to the line shaft effect, and measured value is as the foundation of control step motor movement.Be used for restrict rotor along line shaft displacement in axial sliding near switch, be placed on the bearing of front and back.Touch-screen is used for dynamometer machine and operating personnel carry out alternately.
When dynamometer machine was worked, controller 15 control step motors 16 rotating screw bolts 14 promoted disk 13.Pull bar 11, outer race 7, bearing 6, magnet retainer 3 and the permanent magnet on it 8 are with disk 13 common side shiftings to the stator hub 10 that is furnished with water channel.Stator hub 10 begins to cut the magnetic line of force that permanent magnet 8 sends, and produces eddy current in stator hub 10, and produces the moment of torsion that hinders rotor rotation, and this moment of torsion acts on the line shaft 4 by magnet retainer 3, thereby produces the loading effect.
Regulate stepper motor 16 by controller 15, disk 13, pull bar 11, outer race 7, bearing 6, magnet retainer 3 and the permanent magnet on it 8 are slided, can realize the stepless control of dynamometer machine load torque.Change the rotating speed of stepper motor 16, the speed of scalable change in torque.
Claims (4)
1. hub type liquid cooling permanent magnet dynamometer comprises the rotor, stator and the load maintainer that connect mutually with line shaft (4); It is characterized in that: described rotor is circular ring magnet retainer (3) and 10～18 blocks of permanent magnets (8) that evenly are fixed on magnet retainer (3) circumference, magnet retainer (3) is enclosed within on the line shaft (4), and be connected with line shaft (4) by spline, and magnet retainer (3) can be controlled lower edge line shaft (4) at load maintainer and slides; The described stator stator hub (10) that the conductive material that is provided with the chilled water water channel constitutes of serving as reasons, stator hub (10) is provided with around magnet retainer (3), and less than the moving range of magnet retainer (3).
2. hub type liquid cooling permanent magnet dynamometer as claimed in claim 1 is characterized in that: described load maintainer comprises the bearing (6) that is connected with magnet retainer (3) and outer race (7), the pull bar (11) that is connected with outer race (7), the disk (13) that is connected with pull bar (11), the screw rod (14) that spins with disk (13), the stepper motor (16) that is connected with screw rod (14), the controller (15) that links to each other with stepper motor.
3. hub type liquid cooling permanent magnet dynamometer as claimed in claim 1 is characterized in that: described chilled water water channel is the circulation water channel through heating radiator.
4. hub type liquid cooling permanent magnet dynamometer as claimed in claim 2 is characterized in that: described controller (15) comprises the programmable controller that is used for storage control program and control step motor movement, be used for measuring to line shaft (4) torque and the torque gauge that is connected with programmable controller, be used for restrict rotor along line shaft slide into the limit near switch, the touch-screen that is connected with programmable controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202465243U CN201569525U (en) | 2009-10-30 | 2009-10-30 | Hub type liquid cooling permanent-magnet dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202465243U CN201569525U (en) | 2009-10-30 | 2009-10-30 | Hub type liquid cooling permanent-magnet dynamometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201569525U true CN201569525U (en) | 2010-09-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202465243U Expired - Fee Related CN201569525U (en) | 2009-10-30 | 2009-10-30 | Hub type liquid cooling permanent-magnet dynamometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201569525U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175640A (en) * | 2013-03-22 | 2013-06-26 | 哈尔滨工业大学 | Shafting-free inner rotor structure permanent magnet synchronous motor positioning torque testing device |
| CN106556485A (en) * | 2015-09-28 | 2017-04-05 | 李启飞 | Very big load regulatable magnetic force dynamometer |
| CN106610327A (en) * | 2015-10-22 | 2017-05-03 | 李启飞 | Magnetic chassis dynamometer |
| CN107478365A (en) * | 2017-08-16 | 2017-12-15 | 南京航空航天大学 | A kind of ultrasound electric machine power measurement arrangement for loading continuously adjustabe |
| CN107607236A (en) * | 2016-07-11 | 2018-01-19 | 李启飞 | The special-shaped very big load regulatable magnetic force dynamometer of tandem type |
| CN108318166A (en) * | 2015-09-02 | 2018-07-24 | 李启飞 | Magnetic force dynamometer |
-
2009
- 2009-10-30 CN CN2009202465243U patent/CN201569525U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175640A (en) * | 2013-03-22 | 2013-06-26 | 哈尔滨工业大学 | Shafting-free inner rotor structure permanent magnet synchronous motor positioning torque testing device |
| CN103175640B (en) * | 2013-03-22 | 2015-04-22 | 哈尔滨工业大学 | Shafting-free inner rotor structure permanent magnet synchronous motor positioning torque testing device |
| CN108318166A (en) * | 2015-09-02 | 2018-07-24 | 李启飞 | Magnetic force dynamometer |
| CN106556485A (en) * | 2015-09-28 | 2017-04-05 | 李启飞 | Very big load regulatable magnetic force dynamometer |
| CN106610327A (en) * | 2015-10-22 | 2017-05-03 | 李启飞 | Magnetic chassis dynamometer |
| CN107607236A (en) * | 2016-07-11 | 2018-01-19 | 李启飞 | The special-shaped very big load regulatable magnetic force dynamometer of tandem type |
| CN107478365A (en) * | 2017-08-16 | 2017-12-15 | 南京航空航天大学 | A kind of ultrasound electric machine power measurement arrangement for loading continuously adjustabe |
| CN107478365B (en) * | 2017-08-16 | 2024-02-13 | 南京航空航天大学 | Ultrasonic motor dynamometer device with continuously adjustable load |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20111030 |