CN201549954U - Magnetic ring fixing structure of motor rotor - Google Patents
Magnetic ring fixing structure of motor rotor Download PDFInfo
- Publication number
- CN201549954U CN201549954U CN2009203148715U CN200920314871U CN201549954U CN 201549954 U CN201549954 U CN 201549954U CN 2009203148715 U CN2009203148715 U CN 2009203148715U CN 200920314871 U CN200920314871 U CN 200920314871U CN 201549954 U CN201549954 U CN 201549954U
- Authority
- CN
- China
- Prior art keywords
- magnet ring
- magnetic ring
- rotation axis
- rotating shaft
- convex tendon
- 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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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a magnetic ring fixing structure of a motor rotor, which overcomes the defects of the prior art that the magnetic ring arranged on the rotating shaft can easily deviate, thereby influencing the performance of the motor, and the cost of the mass production is over high due to the block rings on both ends of the magnetic ring. The magnetic ring fixing structure comprises a rotating shaft, a magnetic ring and a bearing, wherein the magnetic ring and the bearing are arranged on the rotating shaft. The magnetic ring fixing structure is characterized in that the magnetic ring is a plastic magnetic ring, a positioning convex rib is arranged on the part of the rotating shaft with the magnetic ring, and the plastic magnetic ring is boned with the rotating shaft. Since the plastic magnetic ring can be tightly fixed on the rotating shaft, the utility model saves the block rings used for limiting the bearing and reduces the production cost.
Description
Technical field
The utility model belongs to motor component, is specifically related to a kind of magnet ring fixed structure of rotor.
Background technology
As shown in Figure 1, the existing magnet ring that is nested with on rotor is the sintering magnet ring, this type of magnet ring poor ductility, more crisp, and the rotation axis surfacing of rotor, smooth, generally with glue the sintering magnet ring is fixed on the rotation axis, the front and back end of sintering magnet ring is provided with back-up ring respectively and carries out spacing to the bearing at sintering magnet ring and its rear portion.Because the rotation axis surfacing if the glue imperfect bonding causes the sintering magnet ring to be offset easily, influences motor performance.Back-up ring has all been installed at the two ends of sintering magnet ring, causes production cost too high in high volume production process.
Summary of the invention
The purpose of this utility model provides a kind of magnet ring fixed structure of rotor, makes magnet ring and rotation axis fixing reliable, reduces cost.
For this reason, the utility model is taked following technical scheme: a kind of magnet ring fixed structure of rotor, comprise rotation axis, be installed in magnet ring and bearing on the rotation axis, it is characterized in that described magnet ring is the plastics magnet ring, the position that magnet ring is installed at rotation axis is provided with the location convex tendon, described plastics magnet ring and rotation axis bonding.By the location convex tendon is set in rotating shaft itself and magnet ring are fixed, because that the plastics magnet ring is compared sintering magnet ring ductility is better, convex tendon not fragile magnet ring in location in addition, is offset even glue imperfect bonding magnet ring is also difficult,
The front end face of described plastics magnet ring and a back-up ring offset, and the rear end face and the bearing inner race of described plastics magnet ring offset.Saved the back-up ring of original restriction bearing, reduced production costs.
The formation direction of described location convex tendon is axial consistent with rotation axis, and described location convex tendon is continuous type location convex tendon or discontinuous form location convex tendon.The fixing that the quantity of location convex tendon setting and shape directly affect magnet ring.
Described plastics magnet ring and rotation axis bond with glue.
The beneficial effects of the utility model are embodied in: it is good that the plastics magnet ring is compared sintering magnet ring ductility, can the location convex tendon be set by the position that the plastics magnet ring is installed at rotation axis in order to the plastics magnet ring is fixed, even glue imperfect bonding, the plastics magnet ring also can firm fixation on rotation axis, the rear end of plastics magnet ring can offset with bearing inner race, saved and be used for bearing is carried out spacing back-up ring, reduced production costs.
Description of drawings
Fig. 1 is the magnet ring fixed structure schematic diagram on the existing motor.
Fig. 2 is a structural representation of the present utility model.
Among the figure: 1. rotation axis 2. back-up rings 3. magnet rings 4. bearings.
Embodiment
Below in conjunction with specification drawings and specific embodiments substantive distinguishing features of the present utility model is further described.
As shown in Figure 2, a kind of magnet ring fixed structure of rotor comprises rotation axis 1, is nested with plastics magnet ring 3 and bearing 4 on the rotation axis 1, at the position that rotation axis 1 is installed magnet ring 3 location convex tendon (not shown) is set, and plastics magnet ring 3 adopts the glue bonding with rotation axis 1.The back-up ring 2 that the front end face of plastics magnet ring 3 and is nested with on rotation axis 1 offsets, and the rear end face of plastics magnet ring 3 and bearing 4 inner rings offset.The formation direction of location convex tendon is axial consistent with rotation axis 1, and the location convex tendon can be continuous type location convex tendon or discontinuous form location convex tendon.
Claims (5)
1. the magnet ring fixed structure of a rotor, comprise rotation axis (1), be installed in magnet ring (3) and bearing (4) on the rotation axis (1), it is characterized in that described magnet ring (3) is a plastics magnet ring (3), the position that magnet ring (3) is installed at rotation axis (1) is provided with the location convex tendon, described plastics magnet ring (3) and rotation axis (1) bonding.
2. according to the magnet ring fixed structure of the described a kind of rotor of claim 1, it is characterized in that the front end face of described plastics magnet ring (3) and a back-up ring (2) offset, the rear end face of described plastics magnet ring (3) and bearing (4) inner ring offset.
3. according to the magnet ring fixed structure of the described a kind of rotor of claim 2, the formation direction that it is characterized in that described location convex tendon is axial consistent with rotation axis (1).
4. according to the magnet ring fixed structure of the described a kind of rotor of claim 3, what it is characterized in that described location convex tendon is that continuous type location convex tendon or discontinuous form are located convex tendon.
5. according to the magnet ring fixed structure of claim 1 or 4 described a kind of rotors, described plastics magnet ring (3) bonds with glue with rotation axis (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203148715U CN201549954U (en) | 2009-11-17 | 2009-11-17 | Magnetic ring fixing structure of motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203148715U CN201549954U (en) | 2009-11-17 | 2009-11-17 | Magnetic ring fixing structure of motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201549954U true CN201549954U (en) | 2010-08-11 |
Family
ID=42605136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203148715U Expired - Fee Related CN201549954U (en) | 2009-11-17 | 2009-11-17 | Magnetic ring fixing structure of motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201549954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178630A (en) * | 2013-02-07 | 2013-06-26 | 浙江德盈电气制造有限公司 | Direct-current high-voltage motor rotor structure |
-
2009
- 2009-11-17 CN CN2009203148715U patent/CN201549954U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178630A (en) * | 2013-02-07 | 2013-06-26 | 浙江德盈电气制造有限公司 | Direct-current high-voltage motor rotor structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20111117 |