CN211183581U - Permanent magnet rotor of generator - Google Patents
Permanent magnet rotor of generator Download PDFInfo
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- CN211183581U CN211183581U CN202020224757.XU CN202020224757U CN211183581U CN 211183581 U CN211183581 U CN 211183581U CN 202020224757 U CN202020224757 U CN 202020224757U CN 211183581 U CN211183581 U CN 211183581U
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- taper
- permanent magnet
- threaded hole
- shaft
- generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The utility model relates to the technical field of power generation equipment, in particular to a permanent magnet rotor of a generator; the flywheel comprises a flywheel, a taper shaft and a rotor body; the wide end of the taper shaft is coaxially fixed on the flywheel, the shaft part of the rotor body is provided with a taper sleeve with the same taper of the taper shaft, the taper shaft is provided with a first threaded hole, a second threaded hole is formed in the taper sleeve, and the axes of the first threaded hole, the second threaded hole, the taper sleeve and the taper shaft are overlapped; the taper sleeve and the taper shaft are sequentially connected with the second threaded hole and the first threaded hole through bolts to be fastened and connected; the flywheel and the rotor body are connected through the designed taper shaft, the rotor body is designed to be a taper sleeve which is coaxial with the taper shaft and has the same taper, and the rotor body is locked through the bolt, so that the traditional permanent magnet rotor structure of the generator is compared, and the flywheel and the rotor body can keep better concentricity under the high-speed rotation of the rotor body, so that the generator can run more stably.
Description
Technical Field
The utility model relates to a power generation facility technical field, a special design generator permanent magnet rotor.
Background
The generator set has wide application in industrial production, national defense, science and technology and daily life, and with the technological progress in recent years, light-weight portable small generator sets also start to enter the daily production and application of industrial enterprises, are particularly applied to refrigerated vehicles, and through the process of converting mechanical energy into electric energy, a generator permanent magnet rotor is an important part of a small generator, and how a flywheel and a rotor body keep concentricity under high-speed rotation in the permanent magnet rotor is a technical problem which needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a permanent magnet rotor for a generator is provided to maintain concentricity of a flywheel and a rotor body at high speed rotation.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a permanent magnet rotor of a generator comprises a flywheel, a taper shaft and a rotor body;
the wide end of the taper shaft is coaxially fixed on the flywheel, the shaft part of the rotor body is provided with a taper sleeve with the same taper of the taper shaft, the taper shaft is provided with a first threaded hole, a second threaded hole is formed in the taper sleeve, and the axes of the first threaded hole, the second threaded hole, the taper sleeve and the taper shaft are overlapped; the taper sleeve and the taper shaft are sequentially connected with the second threaded hole and the first threaded hole through bolts to be fastened and connected.
The rotor body comprises a fixed frame, permanent magnet poles and supporting spokes; the fixing frame is connected to the taper sleeve through the supporting spokes, and the magnetic pole of the permanent magnet is fixed to the fixing frame.
The fixing frame is in a circular ring cylinder shape, and the permanent magnet magnetic pole is fixed on the outer arc surface of the fixing frame through a countersunk screw.
The outer arc surface of the fixing frame is provided with a dovetail groove, an adhesive layer is filled in the dovetail groove, and the magnetic pole of the permanent magnet is attached to the adhesive layer.
One end, away from the flywheel, of the taper sleeve is coaxially connected with a fan connecting shaft, the fan connecting shaft is connected with fan blades, and the supporting spokes are provided with through holes.
Wherein, the fan connecting shaft is a hollow shaft.
The fan connecting shaft is characterized in that a flange is arranged at one end of the fan connecting shaft, a third threaded hole is formed in the flange, a fourth threaded hole matched with the third threaded hole is formed in one end, away from the flywheel, of the taper sleeve, and the fan connecting shaft is sequentially connected with the third threaded hole and the fourth threaded hole in a fixed connection mode through screws.
Wherein, the taper shaft is fixed on the flywheel through a bolt.
The beneficial effects of the utility model reside in that: the utility model provides an among the generator permanent magnet rotor structure, connect flywheel and rotor block through design tapering axle, the rotor block design with the coaxial and the same tapering cover of tapering axle to through bolt locking, compare traditional generator permanent magnet rotor structure, under rotor block high-speed rotation, flywheel and rotor block can keep better concentricity, make the generator operation more steady.
Drawings
Fig. 1 is a structural cross-sectional view of a permanent magnet rotor of a generator according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a taper sleeve of a permanent magnet rotor of a generator according to an embodiment of the present invention;
fig. 3 is a sectional view of an axial structure of a permanent magnet rotor of a generator according to an embodiment of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
fig. 5 is a sectional view of a rotor body structure of a permanent magnet rotor for a generator according to an embodiment of the present invention;
fig. 6 is a sectional view of a fan connecting shaft of a permanent magnet rotor of a generator according to an embodiment of the present invention;
description of reference numerals:
1. a flywheel; 2. a taper shaft; 21. a first threaded hole; 3. a rotor body; 31. a taper sleeve; 311. a fourth threaded hole; 32. a second threaded hole; 33. a fixed mount; 331. a dovetail groove; 34. a permanent magnet pole; 35. supporting a spoke; 351. a through hole; 36. countersunk head screws; 4. a fan connecting shaft; 5. a fan blade; 6. a flange; 61. and a third threaded hole.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The utility model discloses the most crucial design lies in: the flywheel and the rotor body are connected by designing the taper shaft, the rotor body is designed with the taper sleeve which is coaxial with the taper shaft and has the same taper, and is locked by the bolt, so that the flywheel and the rotor body can keep better concentricity,
referring to fig. 1 to 6, the present invention relates to a permanent magnet rotor for a generator, which includes a flywheel 1, a taper shaft 2 and a rotor body 3;
the wide end of the taper shaft 2 is coaxially fixed on the flywheel 1, the shaft part of the rotor body 3 is provided with a taper sleeve 31 with the same taper of the taper shaft 2, the taper shaft 2 is provided with a first threaded hole 21, a second threaded hole 32 is arranged in the taper sleeve 31, and the axes of the first threaded hole 21, the second threaded hole 32, the taper sleeve 31 and the taper shaft 2 are overlapped; the taper sleeve 31 and the taper shaft 2 are fastened and connected by being sequentially connected to the second threaded hole 32 and the first threaded hole 21 through bolts.
Among the above-mentioned generator permanent magnet rotor structure, connect flywheel 1 and rotor block 3 through design tapering axle 2, rotor block 3 designs with the coaxial and the same tapering cover 31 of tapering axle 2 to through bolt locking, compare traditional generator permanent magnet rotor structure, under rotor block 3 high-speed rotation, flywheel 1 and rotor block 3 can keep better concentricity, make the generator operation more steady.
Further, in the above permanent magnet rotor structure of the generator, the rotor body 3 includes a fixing frame 33, a permanent magnet pole 34 and supporting spokes 35; the fixed frame 33 is connected to the taper sleeve 31 through a support spoke 35, and the permanent magnet pole 34 is fixed on the fixed frame 33.
As can be seen from the above description, the permanent magnet pole 34 is fixed by the fixing frame 33, and the taper sleeve 31 and the fixing frame 33 are connected by the supporting spokes 35, so that a large amount of steel can be saved, and the weight of the whole generator can be reduced.
Further, in the above structure of the permanent magnet rotor for a generator, the fixing frame 33 is a circular cylinder, and the permanent magnet magnetic pole 34 is fixed to the outer arc surface of the fixing frame 33 by a countersunk head screw 36.
Further, in the above structure of the permanent magnet rotor of the generator, the outer arc surface of the fixing frame 33 is provided with a dovetail groove 331, the dovetail groove 331 is filled with a glue layer, and the permanent magnet magnetic pole 34 is attached to the glue layer.
As can be seen from the above description, the dovetail groove 331 is formed in the outer arc surface of the fixing frame 33, the adhesive layer is filled in the dovetail groove 331, the permanent magnet magnetic pole 34 is bonded by the adhesive layer, and the fixing of the countersunk head screw 36 is matched, so that the degree of combination between the permanent magnet magnetic pole 34 and the rotor body 3 is enhanced, and the service life of the product is prolonged.
Further, in the above generator permanent magnet rotor structure, one end of the taper sleeve 31 away from the flywheel 1 is coaxially connected with a fan connecting shaft 4, the fan connecting shaft 4 is connected with fan blades 5, and the supporting spokes 35 are provided with through holes 351.
As can be seen from the above description, the fan is coaxially connected to the taper sleeve 31, the rotor rotates to drive the fan blades 5 to rotate, so that the airflow flows to the gap between the fixing frame 33 of the rotor body 3 and the taper sleeve 31, and the through holes 351 are formed in the supporting spokes 35, so that the airflow can pass through the through holes 351 to penetrate through the rotor body 3 and reach the flywheel 1, and both the flywheel 1 and the rotor body 3 can be cooled better.
Further, in the above generator permanent magnet rotor structure, the fan connecting shaft 4 is a hollow shaft.
As can be seen from the above description, the fan connecting shaft 4 is designed as a hollow shaft, which can further reduce the weight of the permanent magnet rotor and save steel.
Further, in the above structure of the permanent magnet rotor for a generator, a flange 6 is disposed at one end of the fan connecting shaft 4, a third threaded hole 61 is disposed on the flange 6, a fourth threaded hole 311 matched with the third threaded hole 61 is disposed at one end of the taper sleeve 31 away from the flywheel 1, and the fan connecting shaft 4 is sequentially connected with the third threaded hole 61 and the fourth threaded hole 311 through screws in a second fixed connection manner.
Further, in the above permanent magnet rotor structure of the generator, the taper shaft 2 is fixed to the flywheel 1 by bolts.
Example 1
A generator permanent magnet rotor comprises a flywheel 1, a taper shaft 2 and a rotor body 3; the wide end of the taper shaft 2 is coaxially fixed on the flywheel 1, the shaft part of the rotor body 3 is provided with a taper sleeve 31 with the same taper of the taper shaft 2, the taper shaft 2 is provided with a first threaded hole 21, a second threaded hole 32 is arranged in the taper sleeve 31, and the axes of the first threaded hole 21, the second threaded hole 32, the taper sleeve 31 and the taper shaft 2 are overlapped; the taper sleeve 31 and the taper shaft 2 are fastened and connected by being sequentially connected to the second threaded hole 32 and the first threaded hole 21 through bolts. The rotor body 3 comprises a fixed frame 33, permanent magnet poles 34 and supporting spokes 35; the fixed frame 33 is connected to the taper sleeve 31 through a support spoke 35, and the permanent magnet pole 34 is fixed on the fixed frame 33. The fixing frame 33 is in the shape of a circular cylinder, and the permanent magnet magnetic pole 34 is fixed on the outer arc surface of the fixing frame 33 through a countersunk head screw 36. The outer arc surface of the fixing frame 33 is provided with a dovetail groove 331, an adhesive layer is filled in the dovetail groove 331, and the permanent magnet magnetic pole 34 is attached to the adhesive layer. One end of the taper sleeve 31, which is far away from the flywheel 1, is coaxially connected with a fan connecting shaft 4, the fan connecting shaft 4 is connected with fan blades 5, and the supporting spokes 35 are provided with through holes 351. The fan connecting shaft 4 is a hollow shaft. One end of the fan connecting shaft 4 is provided with a flange 6, the flange 6 is provided with a third threaded hole 61, one end of the taper sleeve 31 departing from the flywheel 1 is provided with a fourth threaded hole 311 matched with the third threaded hole 61, and the fan connecting shaft 4 is sequentially connected with the third threaded hole 61 and the fourth threaded hole 311 in a fixed connection mode through screws. The taper shaft 2 is fixed on the flywheel 1 through a bolt.
To sum up, the utility model provides an among the generator permanent magnet rotor structure, connect flywheel and rotor block through design tapering axle, the rotor block design with the coaxial and the same tapering cover of tapering axle to through bolt locking, compare traditional generator permanent magnet rotor structure, under the high-speed rotation of rotor block, flywheel and rotor block can keep better concentricity, make the generator operation more steady. Through the coaxial coupling fan on the tapering cover, rotate through the rotor and drive fan blade and rotate, make the air current flow direction rotor block's mount and the clearance between the tapering cover, through set up the through-hole on supporting the spoke, make the air current can pass the through-hole and run through the rotor block, reach the flywheel, make flywheel and rotor block can both obtain better cooling. The permanent magnet magnetic pole is fixed by the fixing frame, and the taper sleeve is connected with the fixing frame through the supporting spokes, so that a large amount of steel can be saved, and the weight of the whole generator is reduced.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (8)
1. The permanent magnet rotor of the generator is characterized by comprising a flywheel, a taper shaft and a rotor body;
the wide end of the taper shaft is coaxially fixed on the flywheel, the shaft part of the rotor body is provided with a taper sleeve with the same taper of the taper shaft, the taper shaft is provided with a first threaded hole, a second threaded hole is formed in the taper sleeve, and the axes of the first threaded hole, the second threaded hole, the taper sleeve and the taper shaft are overlapped; the taper sleeve and the taper shaft are sequentially connected with the second threaded hole and the first threaded hole through bolts to be fastened and connected.
2. Generator permanent magnet rotor according to claim 1, characterized in that the rotor body comprises a fixing frame, permanent magnet poles and support spokes; the fixing frame is connected to the taper sleeve through the supporting spokes, and the magnetic pole of the permanent magnet is fixed to the fixing frame.
3. The generator permanent magnet rotor according to claim 2, wherein the fixing frame is shaped as a circular cylinder, and the permanent magnet poles are fixed to the extrados surface of the fixing frame by countersunk screws.
4. The generator permanent magnet rotor according to claim 3, wherein the outer arc surface of the fixing frame is provided with a dovetail groove, the dovetail groove is filled with an adhesive layer, and the permanent magnet magnetic poles are attached to the adhesive layer.
5. The generator permanent magnet rotor according to claim 2, wherein one end of the taper sleeve facing away from the flywheel is coaxially connected with a fan connecting shaft, the fan connecting shaft is connected with fan blades, and the supporting spokes are provided with through holes.
6. Generator permanent magnet rotor according to claim 5, wherein the fan connection shaft is a hollow shaft.
7. The generator permanent magnet rotor as claimed in claim 5, wherein a flange is provided at one end of the fan connecting shaft, a third threaded hole is provided on the flange, a fourth threaded hole matched with the third threaded hole is provided at one end of the taper sleeve facing away from the flywheel, and the fan connecting shaft is sequentially connected with the third threaded hole and the fourth threaded hole through screws for fixed connection.
8. The generator permanent magnet rotor of claim 1 wherein the tapered shaft is bolted to a flywheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020224757.XU CN211183581U (en) | 2020-02-28 | 2020-02-28 | Permanent magnet rotor of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020224757.XU CN211183581U (en) | 2020-02-28 | 2020-02-28 | Permanent magnet rotor of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211183581U true CN211183581U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020224757.XU Active CN211183581U (en) | 2020-02-28 | 2020-02-28 | Permanent magnet rotor of generator |
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| CN (1) | CN211183581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003415A (en) * | 2020-09-18 | 2020-11-27 | 康富科技有限公司 | Single-support permanent magnet motor |
-
2020
- 2020-02-28 CN CN202020224757.XU patent/CN211183581U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003415A (en) * | 2020-09-18 | 2020-11-27 | 康富科技有限公司 | Single-support permanent magnet motor |
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