CN208476442U - A kind of magnetic hysteresis dynamometer machine - Google Patents
A kind of magnetic hysteresis dynamometer machine Download PDFInfo
- Publication number
- CN208476442U CN208476442U CN201821213343.6U CN201821213343U CN208476442U CN 208476442 U CN208476442 U CN 208476442U CN 201821213343 U CN201821213343 U CN 201821213343U CN 208476442 U CN208476442 U CN 208476442U
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- CN
- China
- Prior art keywords
- stator
- rotor
- drag cup
- inner stator
- cup rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of power of motor testing tools, more particularly to a kind of magnetic hysteresis dynamometer machine, including pedestal, the drag cup rotor being mounted on the base, the external stator for cooperating drag cup rotor and inner stator and the magnet exciting coil between inner stator, external stator and drag cup rotor, drag cup rotor rear end is equipped with postposition encoder, air cooling channel is equipped between the inner stator and drag cup rotor, the one end in the air cooling channel is exposed to outside inner stator, and the other end in the channel that is gas-cooled enters in drag cup rotor after entire inner stator.The utility model cools down stator and rotor using air cooling structure, ensure its cooling effect, extends the service life of stator and rotor, while the signals such as the rotational angle of the external Delivery Center shaft of 60 tooth tachometer disks are replaced using encoder, signal transmitting is reliable and stable, guarantees measuring accuracy.
Description
Technical field
The utility model relates to a kind of power of motor testing tool more particularly to a kind of magnetic hysteresis dynamometer machines.
Background technique
Magnetic hysteresis dynamometer machine applies in general to medium and small torque and the higher power of motor test of revolving speed, such as asynchronous motor, small
Power DC motor, series excited machine and electric tool etc..
Currently, conventional magnetic hysteresis dynamometer machine generally uses water-cooling structure to cool down stator and rotor, it is fast in rotor
In fast rotary course, it is easy to produce drainage, it is caused to be unable to ensure cooling effect, but also rotor may be damaged and determined
Son influences service life；
And conventional magnetic hysteresis dynamometer machine often uses the rotational angle of the external Delivery Center shaft of 60 tooth tachometer disk of postposition
Equal signals, signal transmitting stability and measuring accuracy cannot ensure.
Utility model content
The utility model provides a kind of using air cooling to solve above-mentioned defect existing in the prior art and deficiency
Structure cools down stator and rotor, it is ensured that its cooling effect extends the service life of stator and rotor, while using coding
Device replaces 60 tooth tachometer disks externally to transmit signal, and signal transmitting is reliable and stable, guarantees the magnetic hysteresis dynamometer machine of measuring accuracy.
The technical solution of the utility model includes: a kind of magnetic hysteresis dynamometer machine, turns including pedestal, the drag cup being mounted on the base
Son, the external stator of cooperation drag cup rotor and inner stator and the excitation between inner stator, external stator and drag cup rotor
Coil, drag cup rotor rear end are equipped with postposition encoder, and air cooling channel is equipped between the inner stator and drag cup rotor,
The one end in the air cooling channel is exposed to outside inner stator, and the other end in the channel that is gas-cooled enters drag cup rotor after entire inner stator
It is interior.
The utility model cools down stator and rotor using air cooling structure, it is ensured that its cooling effect extends stator
With the service life of rotor, while the letter such as rotational angle of the external Delivery Center shaft of 60 tooth tachometer disks is replaced using encoder
Number, signal transmitting is reliable and stable, guarantees measuring accuracy.
Preferably, the drag cup rotor is mounted on the base by fore bearing support frame and rear bearing support frame, described
Rear bearing support frame is equipped with the rear bearing block of fixed inner stator, is equipped with external stator installing ring on the outside of the inner stator rear end.
This kind of structure ensures drag cup rotor, inner stator and external stator is more solid and reliable is mounted on the base, simultaneously
Ensure that the assembly between external stator and inner stator is more solid and reliable.
Preferably, the drag cup rotor includes central rotating shaft, rotor outer ring and connection central rotating shaft and rotor outer ring
Connector sleeve, described connector sleeve one end are connected by bearing with fore bearing support frame, and the central rotating shaft passes through bearing and inner stator
The connection of inside both ends.
This kind of structure ensures that the rotation of drag cup rotor is more reliable and more stable, so that it is guaranteed that its to the test of tested motor more
Add reliable and stable.
Preferably, the external stator rear end is fixed on external stator installing ring, between the inner stator and external stator there are
Cooperate the elongated slot of rotor outer ring, and be additionally provided with indent on rear side of inner stator, forms magnet exciting coil between the indent and external stator and hold
Receive slot.
This kind of structure ensures that the installation of magnet exciting coil is more reliable and more stable, at the same ensure rotor outer ring and inside and outside stator with
And the cooperation between magnet exciting coil is more reliable and more stable,
Preferably, the rear bearing block end is equipped with the postposition sensor of cooperation central rotating shaft.
This kind of structure makes it possible to the velocity of rotation of accurate inspection center's shaft.
The utility model cools down stator and rotor using air cooling structure, it is ensured that its cooling effect extends stator
With the service life of rotor, while the letter such as rotational angle of the external Delivery Center shaft of 60 tooth tachometer disks is replaced using encoder
Number, signal transmitting is reliable and stable, guarantees measuring accuracy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
1. external stator in figure, 2. inner stators, 3. drag cup rotors, 4. magnet exciting coils, 5. air cooling channels, the support of 6. fore bearings
Frame, 7. rear bearing support frames, 8. postposition sensors, 9. postposition encoders, 10. pedestals, 11. central rotating shafts, 12. rotor outer rings,
13. connector sleeve, 14. rear bearing blocks, 15. external stator installing rings, 16. elongated slots, 17. magnet exciting coil holding tanks.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing, but is not that model is protected to the utility model
The limitation enclosed.
As shown in Figure 1, a kind of magnetic hysteresis dynamometer machine, empty including pedestal 10, the drag cup rotor 3 being mounted on pedestal 1, cooperation
The external stator 1 and inner stator 2 and the magnet exciting coil between inner stator 2, external stator 1 and drag cup rotor 3 of heart cup rotor 3
4.3 rear end of drag cup rotor is equipped with postposition encoder 8, and air cooling channel 5, air cooling are equipped between inner stator 2 and drag cup rotor 3
The one end in channel 5 is exposed to outside inner stator 2, and the other end in air cooling channel 5 enters in drag cup rotor 3 after entire inner stator 2.
Drag cup rotor 3 is mounted on pedestal 10 by fore bearing support frame 6 and rear bearing support frame 7, and rear bearing support frame 7 is equipped with
The rear bearing block 14 of fixed inner stator 2,2 rear end of inner stator outside are equipped with external stator installing ring 15.Drag cup rotor 3 includes center
Shaft 11, rotor outer ring 12 and the connector sleeve 13 for connecting central rotating shaft 11 and rotor outer ring 12,13 one end of connector sleeve passes through bearing
It is connected with fore bearing support frame 6, central rotating shaft 11 is connected by bearing with 2 inside both ends of inner stator.1 rear end of external stator is fixed
On external stator installing ring 15, there are the elongated slots 16 of cooperation rotor outer ring 12 between inner stator 2 and external stator 1, and after inner stator 2
Side is additionally provided with indent, and magnet exciting coil holding tank 17 is formed between indent and external stator 1.14 end of rear bearing block is equipped in cooperation
The postposition sensor 8 of heart shaft 11.
This it is practical it is new during the test, by tested motor driving drag cup rotor rotation, after applying exciting current,
Outside, inner stator just passes through air gap to drag cup rotor, i.e., applies brake force to tested motor, and the torque of the brake force is to load
Torque.Adjustment excitation current can change loading moment size.
The utility model cools down stator and rotor using air cooling structure, it is ensured that its cooling effect extends stator
With the service life of rotor, while the letter such as rotational angle of the external Delivery Center shaft of 60 tooth tachometer disks is replaced using encoder
Number, signal transmitting is reliable and stable, guarantees measuring accuracy.
Claims (5)
1. a kind of magnetic hysteresis dynamometer machine, including pedestal, the drag cup rotor being mounted on the base, the external stator for cooperating drag cup rotor
And inner stator and the magnet exciting coil between inner stator, external stator and drag cup rotor, it is characterised in that: the drag cup
Rotor rear end is equipped with postposition encoder, and air cooling channel is equipped between the inner stator and drag cup rotor, the air cooling channel
One end is exposed to outside inner stator, and the other end in the channel that is gas-cooled enters in drag cup rotor after entire inner stator.
2. a kind of magnetic hysteresis dynamometer machine according to claim 1, it is characterised in that: the drag cup rotor passes through fore bearing branch
Support and rear bearing support frame are mounted on the base, and the rear bearing support frame is equipped with the rear bearing block of fixed inner stator, institute
It states and is equipped with external stator installing ring on the outside of inner stator rear end.
3. a kind of magnetic hysteresis dynamometer machine according to claim 2, it is characterised in that: the drag cup rotor includes that center turns
Axis, rotor outer ring and the connector sleeve for connecting central rotating shaft and rotor outer ring, described connector sleeve one end pass through bearing and fore bearing branch
Support connection, the central rotating shaft are connected by bearing with both ends on the inside of inner stator.
4. a kind of magnetic hysteresis dynamometer machine according to claim 3, it is characterised in that: the external stator rear end is fixed on external stator
There are the elongated slots of cooperation rotor outer ring on installing ring, between the inner stator and external stator, and are additionally provided with indent on rear side of inner stator,
Magnet exciting coil holding tank is formed between the indent and external stator.
5. a kind of magnetic hysteresis dynamometer machine according to claim 3, it is characterised in that: the rear bearing block end is equipped in cooperation
The postposition sensor of heart shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821213343.6U CN208476442U (en) | 2018-07-17 | 2018-07-17 | A kind of magnetic hysteresis dynamometer machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821213343.6U CN208476442U (en) | 2018-07-17 | 2018-07-17 | A kind of magnetic hysteresis dynamometer machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208476442U true CN208476442U (en) | 2019-02-05 |
Family
ID=65208325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821213343.6U Expired - Fee Related CN208476442U (en) | 2018-07-17 | 2018-07-17 | A kind of magnetic hysteresis dynamometer machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208476442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112731141A (en) * | 2020-12-09 | 2021-04-30 | 北京农业智能装备技术研究中心 | Hollow shaft torque motor performance testing device and method |
| CN113391088A (en) * | 2020-03-12 | 2021-09-14 | 常州赛乐医疗技术有限公司 | Portable device for detecting torque and rotating speed of dental equipment |
-
2018
- 2018-07-17 CN CN201821213343.6U patent/CN208476442U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113391088A (en) * | 2020-03-12 | 2021-09-14 | 常州赛乐医疗技术有限公司 | Portable device for detecting torque and rotating speed of dental equipment |
| CN112731141A (en) * | 2020-12-09 | 2021-04-30 | 北京农业智能装备技术研究中心 | Hollow shaft torque motor performance testing device and method |
| CN112731141B (en) * | 2020-12-09 | 2023-05-12 | 北京农业智能装备技术研究中心 | Hollow shaft torque motor performance testing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190205 Termination date: 20210717 |