CN217720908U - Permanent magnet motor rotor fixing device - Google Patents
Permanent magnet motor rotor fixing device Download PDFInfo
- Publication number
- CN217720908U CN217720908U CN202221913359.4U CN202221913359U CN217720908U CN 217720908 U CN217720908 U CN 217720908U CN 202221913359 U CN202221913359 U CN 202221913359U CN 217720908 U CN217720908 U CN 217720908U
- Authority
- CN
- China
- Prior art keywords
- retainer plate
- rotor
- end cover
- rear end
- fixing ring
- 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.)
- Active
Links
Images
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a permanent magnet motor rotor fixing device, which comprises a rotor, a front end cover and a rear end cover, wherein the middle part of the front end cover is provided with a front bearing mounting hole, a front bearing is arranged in the front bearing mounting hole, the inner side of the front bearing is provided with a front fixing ring, the inner side of the front fixing ring is sleeved on the rotor, the outer ring of the front fixing ring is abutted against the stepped block of the front end cover, and the front end of the front fixing ring is fixedly connected with the front end cover through a first bolt; the rear end cover middle part is equipped with the rear bearing mounting hole, is equipped with the rear bearing in the rear bearing mounting hole, and rear bearing front end and rear end are equipped with first retainer plate and second retainer plate respectively, and the rotor is cup jointed to first retainer plate inner circle, first retainer plate outer lane butt rear end cap, and the rotor is cup jointed to second retainer plate inner circle, and second retainer plate outer lane butt rear end cap passes through the second bolted connection between first retainer plate and the second retainer plate and fixes.
Description
Technical Field
The utility model relates to the field of machinary, especially a permanent-magnet machine rotor fixing device.
Background
The permanent magnet synchronous motor provides excitation by the permanent magnet, so that the structure of the motor is simpler, the processing and assembling cost is reduced, a collecting ring and an electric brush which are easy to cause problems are omitted, and the running reliability of the motor is improved; and because excitation current is not needed, excitation loss is avoided, and the efficiency and the power density of the motor are improved.
The mine roadway is adopted in an application scene, the vibration is frequent, the traditional motor is large in structure, inconvenient to install and large in occupied area, and the traditional reduction gearbox is used for connection.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to solve the technical problem that to prior art not enough, provide a permanent-magnet machine rotor fixing device.
In order to solve the technical problem, the utility model discloses a permanent magnet motor rotor fixing device, which comprises a rotor, a front end cover and a rear end cover, wherein the middle part of the front end cover is provided with a front bearing mounting hole, a front bearing is arranged in the front bearing mounting hole, the inner side of the front bearing is provided with a front fixing ring, the inner side of the front fixing ring is sleeved on the rotor, the outer ring of the front fixing ring is abutted against a step block of the front end cover, and the front end of the front fixing ring is fixedly connected with the front end cover through a first bolt; the rear end cover middle part is equipped with the rear bearing mounting hole, is equipped with the rear bearing in the rear bearing mounting hole, and rear bearing front end and rear end are equipped with first retainer plate and second retainer plate respectively, and the rotor is cup jointed to first retainer plate inner circle, first retainer plate outer lane butt rear end cap, and the rotor is cup jointed to second retainer plate inner circle, and second retainer plate outer lane butt rear end cap passes through the second bolted connection between first retainer plate and the second retainer plate and fixes.
The utility model discloses in, including the casing, install respectively on front end housing and rear end cap casing both sides, the inside cooling chamber that is equipped with of casing.
The utility model discloses in, the cooling oil has been annotated to the cooling chamber intracavity.
The utility model discloses in, preceding bearing front end butt front end housing, the preceding retainer plate of rear end butt.
The utility model discloses in, the middle part of rear bearing mounting hole is equipped with protruding circle, and first retainer plate rear end butt circles at the protruding circle, and the front end butt of second retainer plate circles at the protruding circle, and the second bolt passes protruding circle fastening first retainer plate and second retainer plate.
The utility model discloses in, first retainer plate rear end be equipped with the first step piece of protruding circle adaptation, second retainer plate front end be equipped with the second step piece of protruding circle adaptation, first step piece and second step piece carry on spacingly to the rear bearing.
Has the beneficial effects that: the utility model discloses utilize permanent-magnet material to adhere to the stator coil of motor on the casing, rotor direct drive has reduced the reducing gear box in the middle of the tradition. Simultaneously, to the service environment in mine tunnel, the utility model discloses carry out fixed design of reinforceing to the rotor, guarantee that the rotor is stable, avoid the maintenance frequent.
Drawings
These and/or other advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings and the following detailed description.
Fig. 1 is a sectional view.
In the figure: the rotor comprises a rotor 1, a front end cover 2, a rear end cover 3, a front bearing mounting hole 4, a front bearing 5, a front fixing ring 6, a first bolt 7, a rear bearing mounting hole 8, a rear bearing 9, a first fixing ring 10, a second fixing ring 11, a second bolt 12, a casing 13, a cooling cavity 14 and a convex ring 15.
Detailed Description
Example (b):
as shown in fig. 1, the embodiment provides a permanent magnet motor rotor fixing device, which includes a rotor 1, a front end cover 2 and a rear end cover 3, wherein a front bearing mounting hole 4 is formed in the middle of the front end cover 2, a front bearing 5 is arranged in the front bearing mounting hole, a front fixing ring 6 is arranged on the inner side of the front bearing, the inner side of the front fixing ring 6 is sleeved on the rotor, the outer ring of the front fixing ring is abutted to a step block of the front end cover, and the front end of the front fixing ring is fixedly connected to the front end cover through a first bolt 7; rear end housing 3 middle part is equipped with rear bearing mounting hole 8, is equipped with rear bearing 9 in the rear bearing mounting hole, and rear bearing front end and rear end are equipped with first retainer plate 10 and second retainer plate 11 respectively, and the rotor is cup jointed to first retainer plate inner circle, first retainer plate 10 outer lane butt rear end cap, and the rotor is cup jointed to 11 inner circles of second retainer plate, second retainer plate outer lane butt rear end cap, and it is fixed to connect through second bolt 12 between first retainer plate and the second retainer plate. The cooling device further comprises a machine shell 13, wherein two sides of the machine shell are respectively arranged on the front end cover and the rear end cover, and a cooling cavity 14 is arranged inside the machine shell. The cooling oil is injected into the cooling cavity, and the cooling is carried out by adopting oil cooling in the embodiment. In the present embodiment, the right side of the figure is the front end, and the left side of the figure is the back end.
The front end of the front bearing is connected with the front end cover in an abutting mode, the rear end of the front bearing is connected with the front fixing ring in an abutting mode, the fixing effect is improved, and the installation stability of the rotor is improved.
The middle part of rear bearing mounting hole is equipped with protruding circle 15, and first retainer plate 10 rear end butt is on protruding circle 15, and the front end butt of second retainer plate 11 is on protruding circle 15, and the second bolt passes first retainer plate of protruding circle fastening and second retainer plate.
This embodiment is when using, rotor 1 front end cup joints on front bearing 5, preceding retainer plate 6 radially further fastens the rotor, the axial is last to butt the bearing, and fasten through first bolt 7, it is spacing to realize the front end fastening of rotor, the rotor rear end cup joints at rear bearing 9, first retainer plate 10, in the second retainer plate 11, it is radial spacing, axially, first retainer plate 10, second retainer plate 11 divides to establish around rear bearing 9, spacing through flange 15 and first step piece 10a and second step piece 11a, further fasten through second bolt 12, it is spacing to realize the rear end fastening of rotor, thereby realize the spacing at both ends around the rotor, guarantee the rotor even running of this motor.
The utility model provides a permanent-magnet machine rotor fixing device's thinking and method, the method and the way that specifically realize this technical scheme are many, above only the utility model discloses an preferred embodiment should point out, to this technical field's ordinary technical personnel, is not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improve and moist decorations should also be regarded as the utility model discloses a scope of protection. All the components not specified in the present embodiment can be realized by the prior art.
Claims (6)
1. A permanent magnet motor rotor fixing device is characterized by comprising a rotor, a front end cover and a rear end cover, wherein a front bearing mounting hole is formed in the middle of the front end cover, a front bearing is arranged in the front bearing mounting hole, a front fixing ring is arranged on the inner side of the front bearing, the inner side of the front fixing ring is sleeved on the rotor, the outer ring of the front fixing ring is abutted against a step block of the front end cover, and the front end of the front fixing ring is fixedly connected with the front end cover through a first bolt; the rear end cover middle part is equipped with the rear bearing mounting hole, is equipped with the rear bearing in the rear bearing mounting hole, and rear bearing front end and rear end are equipped with first retainer plate and second retainer plate respectively, and first retainer plate inner circle cup joints the rotor, first retainer plate outer lane butt rear end cap, and the rotor is cup jointed to the second retainer plate inner circle, second retainer plate outer lane butt rear end cap, and it is fixed through second bolted connection between first retainer plate and the second retainer plate.
2. The permanent magnet motor rotor fixing device according to claim 1, comprising a casing, wherein two sides of the casing are respectively installed on a front end cover and a rear end cover, and a cooling cavity is arranged inside the casing.
3. The permanent magnet motor rotor fastening system of claim 2, wherein the cooling cavity is filled with cooling oil.
4. The permanent magnet motor rotor fixture of claim 1 wherein the front bearing has a front end abutting the front end cap and a rear end abutting the front retainer ring.
5. The rotor fixing device of the permanent magnet motor as claimed in claim 1, wherein a convex ring is provided at a middle portion of the rear bearing mounting hole, a rear end of the first fixing ring abuts against the convex ring, a front end of the second fixing ring abuts against the convex ring, and the second bolt passes through the convex ring to fasten the first fixing ring and the second fixing ring.
6. The rotor fixing device of the permanent magnet motor as claimed in claim 5, wherein the rear end of the first fixing ring is provided with a first step block matched with the convex ring, the front end of the second fixing ring is provided with a second step block matched with the convex ring, and the first step block and the second step block limit the rear bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221913359.4U CN217720908U (en) | 2022-07-22 | 2022-07-22 | Permanent magnet motor rotor fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221913359.4U CN217720908U (en) | 2022-07-22 | 2022-07-22 | Permanent magnet motor rotor fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217720908U true CN217720908U (en) | 2022-11-01 |
Family
ID=83780756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221913359.4U Active CN217720908U (en) | 2022-07-22 | 2022-07-22 | Permanent magnet motor rotor fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217720908U (en) |
-
2022
- 2022-07-22 CN CN202221913359.4U patent/CN217720908U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100447388C (en) | Jet motor or turbine motor | |
| CA2708458C (en) | Gas turbine with magnetic shaft forming part of a generator/motor assembly | |
| US20090250935A1 (en) | Rotor for wind turbine and assembling method thereof | |
| WO2005064135A3 (en) | Center housing design for electric assisted turbocharger | |
| CN105186770A (en) | Differential dual-output motor | |
| EP3796524B1 (en) | Engine-and-electric-machine assembly | |
| CN217720908U (en) | Permanent magnet motor rotor fixing device | |
| CN110601451A (en) | Engine and motor assembly | |
| CN210093005U (en) | Permanent magnet motor for battery car | |
| CN110912368A (en) | Oil-cooled high-pressure brushless direct-current motor for aviation fuel system | |
| CN115133697A (en) | Permanent magnet motor rotor fixing device | |
| CN201336588Y (en) | Shellless brushless DC motor | |
| CN210780299U (en) | Small-size rare earth permanent magnet generator structure | |
| CN101709668A (en) | Compound exhaust turbine driven excitation generator | |
| CN211063494U (en) | Engine and motor assembly | |
| CN105958786A (en) | Tangential magnetic pole structure for outer-rotor permanent-magnet motor | |
| CN113074236A (en) | Integrated assembly method of high-altitude platform reducer, motor and controller and driving assembly | |
| CN106849494A (en) | A kind of shaftless and bearing outer rotor permanent magnet generator | |
| CN201430486Y (en) | Motor case body | |
| CN216122154U (en) | Range extender structure with double supports for inner rotor and outer rotor | |
| CN214674838U (en) | Speed reduction motor module | |
| CN216122040U (en) | Three-way type multi-ring cooling water channel motor structure with rotary variable shaft | |
| CN215498480U (en) | Motor structure of rear-mounted supporting direct-connected rotor support of integrated rotary transformer mounting shell | |
| CN215871080U (en) | High-safety permanent magnet direct current motor | |
| CN110556990B (en) | Axial magnetic flux low vibration disk type switch reluctance motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |