CN214952154U - External rotor electric machine testing arrangement - Google Patents
External rotor electric machine testing arrangement Download PDFInfo
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- CN214952154U CN214952154U CN202121134840.9U CN202121134840U CN214952154U CN 214952154 U CN214952154 U CN 214952154U CN 202121134840 U CN202121134840 U CN 202121134840U CN 214952154 U CN214952154 U CN 214952154U
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Abstract
The utility model discloses an external rotor electric machine testing arrangement, include: a shaft; the shell is arranged on the outer periphery of the shaft, the inner periphery of one end of the shell is rotatably connected with the shaft, and one end of the shell is used for mounting a stator of a motor; the inner periphery of the connecting disc is fixedly connected with one end of the shaft, the outer periphery of the connecting disc is used for installing a rotor of the motor, the rotor is located on the outer periphery of the stator, the rotor is opposite to the stator, and the stator and the rotor are coaxially arranged. The utility model discloses can make things convenient for, fast, accurately assemble the stator and the rotor of motor, guarantee that the air gap is even, stator and the coaxial setting of rotor, the test is accurate.
Description
Technical Field
The utility model relates to a motor test equipment's technical field especially relates to an external rotor electric machine testing arrangement.
Background
In the prior art, a rotor and a stator of a test motor need to be clamped through a clamp, the stator and the rotor of the current clamp-mounted motor are complex, the assembly efficiency is low, an air gap between the stator and the rotor cannot be guaranteed to be uniform, and the test precision is low and inaccurate.
Disclosure of Invention
The testing device aims at providing the testing device for the outer rotor motor, can conveniently, quickly and accurately assemble the stator and the rotor of the motor, ensures uniform air gaps, coaxially arranges the stator and the rotor, and accurately tests.
The specific technical scheme is as follows:
an external rotor electric machine testing device, comprising:
a shaft;
the shell is arranged on the outer periphery of the shaft, the inner periphery of one end of the shell is rotatably connected with the shaft, and one end of the shell is used for mounting a stator of a motor;
the inner periphery of the connecting disc is fixedly connected with one end of the shaft, the outer periphery of the connecting disc is used for installing a rotor of the motor, the rotor is located on the outer periphery of the stator, the rotor is opposite to the stator, and the stator and the rotor are coaxially arranged.
In the outer rotor motor testing device, a first bearing is arranged between the shaft and the inner periphery of the outer shell.
In the external rotor motor testing device, the inner circumference of one end of the outer shell is provided with the baffle ring, and the first bearing and the baffle ring are in limit fit along the axial direction of the outer shell.
In the external rotor motor testing device, the shaft is provided with the first bearing retainer, the first bearing is arranged between the outer periphery of the first bearing retainer and the inner periphery of one end of the housing, the connecting disc is sleeved at one end of the shaft, and the inner periphery of the connecting disc is fixedly connected with the first bearing retainer.
Above-mentioned external rotor electric machine testing arrangement, wherein, the connection pad includes: the inner disc is sleeved at one end of the shaft, the inner disc is fixedly connected with the first bearing stop, the inner disc is fixedly connected with the outer disc through the connecting plates, and the rotor is fixedly connected with the inner periphery of the outer disc; the connecting plates are arranged at equal intervals along the circumferential direction of the inner disc.
The external rotor motor testing device described above, wherein, still include: the rear end cover is arranged on the periphery of the other end of the shaft, the rear end cover is fixedly connected with the other end of the shell, and the shaft is in running fit with the rear end cover.
In the external rotor motor testing device, the inner periphery of one end of the outer shell is provided with the first spigot, and the inner periphery of the stator is in limit fit with the first spigot along the radial direction of the outer shell.
In the outer rotor motor testing device, a second bearing is arranged between the inner periphery of the connecting disc and the inner periphery of the stator.
In the external rotor motor testing device, the rear end cover is a flange.
In the external rotor motor testing device, the shaft is further provided with a second bearing stop, and a third bearing is arranged between the inner periphery of the rear end cover and the outer periphery of the second bearing stop.
Compared with the prior art, the technical scheme has the positive effects that:
the utility model discloses can make things convenient for, fast, accurately assemble the stator and the rotor of motor, guarantee that the air gap is even, stator and the coaxial setting of rotor, the test is accurate.
Drawings
Fig. 1 is a schematic overall structure diagram of a second embodiment of an external rotor electric machine testing device according to the present invention;
fig. 2 is a schematic overall structure diagram of a third embodiment of the external rotor electric machine testing device according to the present invention;
fig. 3 is a schematic overall structure diagram of a fourth embodiment of the external rotor electric machine testing device according to the present invention;
in the drawings: 1. a shaft; 2. a housing; 3. a stator; 4. a rotor; 5. a connecting disc; 6. a first bearing; 7. a baffle ring; 8. a first bearing stage; 9. a first spigot; 10. a second bearing; 11. an inner disc; 12. an outer disc; 13. a connecting plate; 14. a first step; 15. a second step; 16. a rear end cap; 17. a second bearing stage; 18. a third bearing; 19. a second spigot; 20. a card slot; 21. a retainer ring; 22. and (7) installing holes.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
The first embodiment:
fig. 1 is the utility model relates to an overall structure schematic diagram of external rotor electric machine testing arrangement's second embodiment, fig. 2 is the utility model relates to an overall structure schematic diagram of external rotor electric machine testing arrangement's third embodiment, fig. 3 is the utility model relates to an overall structure schematic diagram of external rotor electric machine testing arrangement's fourth embodiment, as shown in fig. 1 to fig. 3, the external rotor electric machine testing arrangement who shows a preferred embodiment includes: axle 1, shell 2 and connection pad 5, the periphery of axle 1 is located to shell 2, and the interior circumference and the axle 1 of the one end of shell 2 rotate to be connected, and the one end of shell 2 is used for installing the stator 3 of motor, and the interior circumference of connection pad 5 and the one end fixed connection of axle 1, and the periphery of connection pad 5 is used for installing the rotor 4 of motor, and rotor 4 is located the periphery of stator 3, and rotor 4 is just right mutually with stator 3, and stator 3 and the coaxial setting of rotor 4.
Further, as a preferred embodiment, a first bearing 6 is provided between the shaft 1 and the inner periphery of the housing 2.
Further, as a preferred embodiment, the inner circumference of one end of the outer casing 2 is provided with a baffle ring 7, and the first bearing 6 is in limit fit with the baffle ring 7 along the axial direction of the outer casing 2.
Further, as a preferred embodiment, a first bearing stop 8 is disposed on the shaft 1, a first bearing 6 is disposed between an outer circumference of the first bearing stop 8 and an inner circumference of one end of the housing 2, the connecting disc 5 is sleeved on one end of the shaft 1, and the inner circumference of the connecting disc 5 is fixedly connected to the first bearing stop 8.
Further, as a preferred embodiment, an inner circumference of one end of the housing 2 is provided with a first spigot 9, and an inner circumference of the stator 3 is in limit fit with the first spigot 9 along a radial direction of the housing 2.
Preferably, the first spigot 9 is provided on the retainer ring 7.
Preferably, the outer periphery of the first spigot 9 abuts against the inner periphery of the stator 3, so that the central axis of the stator 3 coincides with the central axis of the housing 2, and the central axis of the rotor 4 coincides with the central axis of the stator 3.
Preferably, the outer diameter of the first spigot 9 is less than or equal to the inner diameter of the housing 2.
Preferably, the first spigot 9 is used for positioning the stator 3 of the bearingless external rotor motor, the outer diameter of the first spigot 9 is the same as the inner diameter of the stator 3, and the first spigot 9 is in clearance fit with the stator 3.
Preferably, the stator 3 is fixedly connected to one end of the housing 2 by means of a plurality of screws.
The above is merely an example of the preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.
The utility model discloses still have following embodiment on above-mentioned basis:
in a further embodiment of the present invention, please continue to refer to fig. 1, the connection pad 6 includes: inner disc 11, a plurality of connecting plate 13 and outer dish 12, the one end of axle 1 is located to inner disc 11 cover, inner disc 11 and first bearing shelves 8 fixed connection, inner disc 11 through a plurality of connecting plates 13 and outer dish 12 fixed connection, rotor 4 and the interior circumference fixed connection of outer dish 12, a plurality of connecting plates 13 are equidistant setting along the circumferencial direction of inner disc 11.
Preferably, the inner disc 11 is fixedly connected to the first bearing rail 8 by means of several screws.
Preferably, the outer circumference of the inner disc 11 has a first step 14 and a slot 20, and the inner circumference of the stator 3 has a second step 15, and the second step 15 is opposite to the first step 14.
The utility model discloses a in the further embodiment, external rotor electric machine testing arrangement still includes: the rear end cover 16 is arranged on the periphery of the other end of the shaft 1, the rear end cover 16 is fixedly connected with the other end of the shell 2, and the shaft 1 is in running fit with the rear end cover 16.
The utility model discloses a further embodiment still is equipped with second bearing shelves 17 on the axle 1, is equipped with third bearing 18 between the inner periphery of rear end cover 16 and the periphery of second bearing shelves 17.
Preferably, the rear end cap 16 is fixedly connected to the second bearing rail 17 by a plurality of screws.
In a further embodiment of the present invention, the outer diameter of the rear end cap 16 is equal to the outer diameter of the housing 2.
Preferably, there is a slight interference fit between the first bearing rail 8 and the first bearing 6, and a slight interference fit between the second bearing rail 17 and the third bearing 18.
Preferably, the rotor 4 is fixedly connected with the connecting disc 5 through a screw, and is used for accurately and easily positioning the rotor 5 of the bearingless outer rotor motor.
Preferably, the outer periphery of the second bearing stop 17 is provided with a second stop mouth 19, and the second stop mouth 19 is in limit fit with the axis of the rear end cover 16.
The stator and the rotor of the bearingless outer rotor motor are respectively fixed on the device, and the bearingless outer rotor motor is changed into a motor with a bearing and a common inner rotor through the motion transmission relation among all parts on the device.
Second embodiment:
fig. 1 is a schematic overall structure diagram of a second embodiment of the external rotor electric machine testing device of the present invention, as shown in fig. 1, a main structure of the present embodiment is substantially the same as that of the first embodiment, and the difference is: a second bearing 10 is provided between the inner periphery of the connecting plate 5 and the inner periphery of the stator 3.
Preferably, the inner periphery of one end of the second bearing 10 is in limit fit with the first step 14, the outer periphery of one end of the second bearing 10 is in limit fit with the second step 15, a retainer ring 21 is arranged in the clamping groove 20, and the retainer ring 21 is in limit fit with the inner periphery of the other end of the second bearing 10.
In a further embodiment of the present invention, the outer diameter of the rear end cap 16 is equal to the outer diameter of the housing 2.
The third embodiment:
fig. 2 is a schematic overall structure diagram of a third embodiment of the external rotor electric machine testing device of the present invention, as shown in fig. 2, the main structure of the present embodiment is substantially the same as the first embodiment, and the difference is that: the rear end cover 16 is a flange, a first spigot 9 is arranged on the inner periphery of one end of the shell 2, and the inner periphery of the stator 3 is in limited fit with the first spigot 9 along the radial direction of the shell 2.
Preferably, the first spigot 9 is provided on the retainer ring 7.
Preferably, the outer periphery of the first spigot 9 abuts against the inner periphery of the stator 3, so that the central axis of the stator 3 coincides with the central axis of the housing 2, and the central axis of the rotor 4 coincides with the central axis of the stator 3.
Preferably, the outer diameter of the first spigot 9 is less than or equal to the inner diameter of the housing 2.
Preferably, the outer diameter of the flange is larger than the outer diameter of the housing 2.
Preferably, the flange has a plurality of mounting holes 22 formed in the periphery thereof.
The fourth embodiment:
fig. 3 is a schematic overall structure diagram of a fourth embodiment of the external rotor electric machine testing device of the present invention, as shown in fig. 3, the main structure of the present embodiment is substantially the same as the first embodiment, and the difference is that: the rear end cover 16 is a flange, and the second bearing 10 is provided between the inner periphery of the connecting plate 5 and the inner periphery of the stator 3.
Preferably, the inner periphery of one end of the second bearing 10 is in limit fit with the first step 14, the outer periphery of one end of the second bearing 10 is in limit fit with the second step 15, a retainer ring 21 is arranged in the clamping groove 20, and the retainer ring 21 is in limit fit with the inner periphery of the other end of the second bearing 10.
Preferably, the outer diameter of the flange is larger than the outer diameter of the housing 2.
Preferably, the flange has a plurality of mounting holes 22 formed in the periphery thereof.
The device realizes the purposes of uniform air gap of the motor and coaxial stator and rotor, ensures accurate test, only takes 5 minutes for assembling one set of motor, greatly lightens the workload of testers and saves time.
The device realizes the purpose of converting the outer rotor motor into the inner rotor motor, and is convenient to test.
The device realizes convenient and quick fixation of the stator and the rotor of the outer rotor motor.
The device realizes that the rear end cover of the device is made into a flange plate type rear end cover, and can be universally used for testing on a dynamometer with an L-shaped rack.
The utility model discloses can make things convenient for, fast, accurately assemble stator 3 and the rotor 4 of motor, guarantee that the air gap is even, stator and the coaxial setting of rotor, the test is accurate.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (10)
1. An external rotor electric machine testing arrangement which characterized in that includes:
a shaft;
the shell is arranged on the outer periphery of the shaft, the inner periphery of one end of the shell is rotatably connected with the shaft, and one end of the shell is used for mounting a stator of a motor;
the inner periphery of the connecting disc is fixedly connected with one end of the shaft, the outer periphery of the connecting disc is used for installing a rotor of the motor, the rotor is located on the outer periphery of the stator, the rotor is opposite to the stator, and the stator and the rotor are coaxially arranged.
2. The external rotor electric machine testing device of claim 1, wherein a first bearing is disposed between the shaft and an inner periphery of the housing.
3. The external rotor motor testing device of claim 2, wherein an inner periphery of one end of the outer shell is provided with a baffle ring, and the first bearing is in limit fit with the baffle ring along the axial direction of the outer shell.
4. The external rotor electric machine testing device of claim 2, wherein a first bearing stop is arranged on the shaft, the first bearing is arranged between the outer periphery of the first bearing stop and the inner periphery of one end of the housing, the connecting disc is sleeved at one end of the shaft, and the inner periphery of the connecting disc is fixedly connected with the first bearing stop.
5. The external rotor electric machine testing device of claim 4, wherein the connection disc comprises: inner disc, a plurality of connecting plate and outer dish, the inner disc cover is located the one end of axle, the inner disc with first bearing shelves fixed connection, the inner disc is through a plurality of the connecting plate with outer dish fixed connection, the rotor with the interior week fixed connection of outer dish, it is a plurality of the connecting plate is followed the circumferencial direction of inner disc is equidistant setting.
6. The external rotor electric machine testing device of claim 1, further comprising: the rear end cover is arranged on the periphery of the other end of the shaft, the rear end cover is fixedly connected with the other end of the shell, and the shaft is in running fit with the rear end cover.
7. The external rotor motor testing device of claim 6, wherein an inner periphery of one end of the outer shell is provided with a first spigot, and the inner periphery of the stator is in limit fit with the first spigot along a radial direction of the outer shell.
8. The external rotor electric machine testing device of claim 6, wherein a second bearing is provided between an inner periphery of the connection disc and an inner periphery of the stator.
9. The external rotor motor testing device of claim 7 or 8, wherein the rear end cover is a flange.
10. The external rotor electric machine testing device of claim 6, wherein a second bearing stop is further arranged on the shaft, and a third bearing is arranged between the inner periphery of the rear end cover and the outer periphery of the second bearing stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121134840.9U CN214952154U (en) | 2021-05-25 | 2021-05-25 | External rotor electric machine testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121134840.9U CN214952154U (en) | 2021-05-25 | 2021-05-25 | External rotor electric machine testing arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN214952154U true CN214952154U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121134840.9U Active CN214952154U (en) | 2021-05-25 | 2021-05-25 | External rotor electric machine testing arrangement |
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| CN (1) | CN214952154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116642401A (en) * | 2023-04-28 | 2023-08-25 | 山东欧瑞安电气有限公司 | Method for detecting inner diameter cylindricity of stator of large-machine-base motor |
-
2021
- 2021-05-25 CN CN202121134840.9U patent/CN214952154U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116642401A (en) * | 2023-04-28 | 2023-08-25 | 山东欧瑞安电气有限公司 | Method for detecting inner diameter cylindricity of stator of large-machine-base motor |
| CN116642401B (en) * | 2023-04-28 | 2024-04-02 | 山东欧瑞安电气有限公司 | Method for detecting inner diameter cylindricity of stator of large-machine-base motor |
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