CN110474474A - A kind of permanent magnet direct-drive motor rotor hub structure - Google Patents
A kind of permanent magnet direct-drive motor rotor hub structure Download PDFInfo
- Publication number
- CN110474474A CN110474474A CN201910765660.1A CN201910765660A CN110474474A CN 110474474 A CN110474474 A CN 110474474A CN 201910765660 A CN201910765660 A CN 201910765660A CN 110474474 A CN110474474 A CN 110474474A
- Authority
- CN
- China
- Prior art keywords
- movable plate
- shaft
- rotor hub
- hub assembly
- permanent magnet
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 description 4
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The present invention discloses a kind of permanent magnet direct-drive motor rotor hub structure, including shaft, the periphery of shaft is equipped with rotor hub assembly, the rotor hub assembly includes movable plate, the quantity of the movable plate is four, the inside of movable plate forms inscribed circle and shaft is coaxial, and the inside of movable plate is abutted with shaft, fracture is equipped between the movable plate, the inscribed circle of the inside of the external circumcircle formed and movable plate of movable plate is coaxially disposed, the interconnecting piece of movable plate is equipped in the fracture two sides of movable plate, by adjusting being bolted between the interconnecting piece, the rotor hub assembly is additionally provided with keyway, rotor hub assembly and shaft are linked together by the rotor key on keyway, the invention has the advantages that solving the problems, such as that weldability is poor, and rotor hub assembly can be required according to the size of shaft, suitable for various sizes of shaft.
Description
Technical field
The present invention relates to permanent magnet direct-drive electric motors, specifically a kind of permanent magnet direct-drive motor new type rotor structure.
Background technique
Many occasion demands reduce motor speed (40-100r/min) and the larger torque of output now.However as electricity
The high speed development of power electronic technology and control technology, the raising of permanent-magnet material manufacturing process and low speed high torque technology more at
It is ripe, low-speed direct driving permasyn morot be widely popularized and applied.Motor speed reduces, and motor pole number necessarily increases
More, motor outer diameter increases, and due to magneto characteristic, reduces cost, big outer diameter rotor structure for permanent magnet motor to save material
Majority uses wheel hub structure.Low-speed direct driving permasyn morot shaft often bears biggish torque, therefore to shaft material
There are very high requirement, multiselect high-quality structural steel.The intensity and hardness of high-quality structural steel are big, however weldability is poor, cannot with it is general
The hub portion of logical carbon steel material welds together well, and intensity not can guarantee, and constrain the use of wheel hub structure.
Summary of the invention
To solve the above problems, the present invention discloses a kind of permanent magnet direct-drive motor rotor hub structure.
Specific technical solution is as follows:
The periphery of a kind of permanent magnet direct-drive motor rotor hub structure, including shaft, shaft is equipped with rotor hub assembly, institute
Stating rotor hub assembly includes movable plate, and the quantity of the movable plate is four, and the inside of movable plate forms inscribed circle and shaft is same
Axis, and the inside of movable plate is abutted with shaft, and fracture, the external circumcircle formed of movable plate are equipped between the movable plate
It is coaxially disposed with the inscribed circle of the inside of movable plate, is equipped with the interconnecting piece of movable plate, the connection in the fracture two sides of movable plate
By adjusting being bolted between portion, the rotor hub assembly is additionally provided with keyway, and rotor hub assembly and shaft pass through on keyway
Rotor key links together.
The rotor hub assembly is fixed with shaft axial float by covering the retaining ring in shaft.
The depth of the keyway is greater than the unilateral wall thickness of movable plate.
The invention has the advantages that solving the problems, such as that weldability is poor, and rotor hub assembly can be wanted according to the size of shaft
It asks, is suitable for various sizes of shaft.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the right view of Fig. 1；
Specific embodiment
The present invention is illustrated with reference to the accompanying drawing, as shown in Figure 1 and Figure 2, a kind of permanent magnet direct-drive motor rotor hub knot
Structure, including shaft 1, the periphery of shaft 1 are equipped with rotor hub assembly 2, and the rotor hub assembly 2 includes movable plate 201, described
The quantity of movable plate 201 is four, and the inside of movable plate 201 forms inscribed circle 202 and shaft 1 is coaxial, and movable plate is interior
Portion is abutted with shaft 1, and fracture 203, the external circumcircle 204 and movable plate formed of movable plate 4 are equipped between the movable plate 4
Inside inscribed circle 202 be coaxially disposed, 203 two sides of fracture of movable plate be equipped with movable plate interconnecting piece 205, the connection
By adjusting the connection of bolt 206 between portion 205, the rotor hub assembly 2 is additionally provided with keyway 207, rotor hub assembly 2 and shaft 1
It is linked together by the rotor key 3 on keyway.
It is fixed that the rotor hub assembly 2 passes through the retaining ring 4 covered in shaft with 1 axial float of shaft.
The depth of the keyway is greater than the unilateral wall thickness of movable plate.
The working principle of the invention is: first adjusting the activity plate spacing on rotor hub assembly, matches by adjusting spacing
Movable block and shaft, are then fixed together by adjusting bolt by various sizes of shaft, on the one hand notch is used as adjustment ring
On the other hand section realizes the size adjusting of keyway, after adjustment bolt fixes, is put into as keyway is connected with the rotating shaft again
Rotor key completes the installation of whole process.
Claims (3)
1. a kind of permanent magnet direct-drive motor rotor hub structure, including shaft, it is characterised in that: the periphery of shaft is equipped with rotor
Hub assembly, the rotor hub assembly includes movable plate, and the quantity of the movable plate is four, and the inside of movable plate forms inscribed circle
It is coaxial with shaft, and the inside of movable plate is abutted with shaft, and fracture is equipped between the movable plate, and the external of movable plate is formed
Circumcircle and movable plate inside inscribed circle be coaxially disposed, the fracture two sides of movable plate be equipped with movable plate interconnecting piece,
By adjusting being bolted between the interconnecting piece, the rotor hub assembly is additionally provided with keyway, and rotor hub assembly passes through with shaft
Rotor key on keyway links together.
2. permanent magnet direct-drive motor rotor hub structure according to claim 1, it is characterised in that: the rotor hub assembly with
Shaft axial float, which passes through the retaining ring covered in shaft, to be fixed.
3. permanent magnet direct-drive motor rotor hub structure according to claim 1, it is characterised in that: the depth of the keyway is big
In the unilateral wall thickness of movable plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910765660.1A CN110474474A (en) | 2019-08-19 | 2019-08-19 | A kind of permanent magnet direct-drive motor rotor hub structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910765660.1A CN110474474A (en) | 2019-08-19 | 2019-08-19 | A kind of permanent magnet direct-drive motor rotor hub structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110474474A true CN110474474A (en) | 2019-11-19 |
Family
ID=68511203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910765660.1A Pending CN110474474A (en) | 2019-08-19 | 2019-08-19 | A kind of permanent magnet direct-drive motor rotor hub structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110474474A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1193420A (en) * | 1995-08-18 | 1998-09-16 | 国际机器公司 | Permanent magnet rotor alternator |
| US20090081044A1 (en) * | 2007-09-20 | 2009-03-26 | Lawrence Pumps, Inc. | Polygon rotor attachment device |
| CN102447324A (en) * | 2010-10-08 | 2012-05-09 | 株式会社安川电机 | Rotating motor, wind power generating system and rotor used in rotating motor |
| CN203206019U (en) * | 2013-04-26 | 2013-09-18 | 重庆东桐科技有限公司 | Rotor structure of embedded tangential magnetic field brushless direct current motor |
| CN204094014U (en) * | 2014-09-18 | 2015-01-14 | 长兴县建设工程质量监督站 | A kind of ecological revetment Portable reinforcing steel bar cutting machine |
| CN108555716A (en) * | 2018-05-28 | 2018-09-21 | 李泽南 | A kind of rotor processing surface deburring device |
| CN208835917U (en) * | 2018-10-17 | 2019-05-07 | 广州小鹏汽车科技有限公司 | The oblique pole structure of machine shaft, rotor, permanent magnet synchronous motor and electric car |
| CN210167899U (en) * | 2019-08-19 | 2020-03-20 | 抚顺煤矿电机制造有限责任公司 | Rotor hub structure of permanent magnet direct-drive motor |
-
2019
- 2019-08-19 CN CN201910765660.1A patent/CN110474474A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1193420A (en) * | 1995-08-18 | 1998-09-16 | 国际机器公司 | Permanent magnet rotor alternator |
| US20090081044A1 (en) * | 2007-09-20 | 2009-03-26 | Lawrence Pumps, Inc. | Polygon rotor attachment device |
| CN102447324A (en) * | 2010-10-08 | 2012-05-09 | 株式会社安川电机 | Rotating motor, wind power generating system and rotor used in rotating motor |
| CN203206019U (en) * | 2013-04-26 | 2013-09-18 | 重庆东桐科技有限公司 | Rotor structure of embedded tangential magnetic field brushless direct current motor |
| CN204094014U (en) * | 2014-09-18 | 2015-01-14 | 长兴县建设工程质量监督站 | A kind of ecological revetment Portable reinforcing steel bar cutting machine |
| CN108555716A (en) * | 2018-05-28 | 2018-09-21 | 李泽南 | A kind of rotor processing surface deburring device |
| CN208835917U (en) * | 2018-10-17 | 2019-05-07 | 广州小鹏汽车科技有限公司 | The oblique pole structure of machine shaft, rotor, permanent magnet synchronous motor and electric car |
| CN210167899U (en) * | 2019-08-19 | 2020-03-20 | 抚顺煤矿电机制造有限责任公司 | Rotor hub structure of permanent magnet direct-drive motor |
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