CN201860184U - Pressing structure for permanent magnet generator stator core - Google Patents
Pressing structure for permanent magnet generator stator core Download PDFInfo
- Publication number
- CN201860184U CN201860184U CN2010206340165U CN201020634016U CN201860184U CN 201860184 U CN201860184 U CN 201860184U CN 2010206340165 U CN2010206340165 U CN 2010206340165U CN 201020634016 U CN201020634016 U CN 201020634016U CN 201860184 U CN201860184 U CN 201860184U
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- CN
- China
- Prior art keywords
- stator core
- cone
- locking bolt
- truncated
- permanent magnet
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- 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 - Lifetime
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- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a pressing structure for a permanent magnet generator stator core, which relates to the technical field of generators and pressing structures for generator stator cores and comprises a stator core press plate. One side of the stator core press plate closely contacts with the stator core, a locking ring in close contact with the stator core press plate is disposed on the other side of the same, a screw hole is arranged on a base, a conical locking bolt matches with the screw hole, the conical locking bolt is a locking bolt with a truncated-cone-shaped front end, a truncated cone is also disposed at one end of the locking ring, and a truncated-cone-shaped lateral surface of the conical locking bolt closely contacts with a truncated-cone-shaped or conical lateral surface of the locking ring. When adopted, on the one hand, the pressing structure realizes easy adjustment of tightness degree of the stator core, on the other hand, a fixation stress carrying portion is the integral bolt after the core is pressed tightly, and the mode that stress is only carried by threads greatly improves reliability.
Description
Technical field
The utility model relates to generator, motor stator-core compressing structure technical field, exactly relates to a kind of compressing structure of permanent magnet generator stator core.
Background technology
The core pressing of motor has a significant impact motor properties.Electric machine iron core compresses mode at present has a lot.Iron core is passed in common having by several stretching screws, so compresses mode unshakable in one's determination by fastening nut; Another mode is to carry out the iron core dress by guiding such as key or dove tail muscle to press, and at last arc key, pressing plate unshakable in one's determination and support etc. is welded with fixed iron core; The situation that adopts outer dress to press for stator core then can adopt the mode of rear of core dress weldering lacing wire to fix.
More than several modes, the stator core that all can effectively be fixed and clamped, but, make dress unshakable in one's determination press the back core tightness to be difficult for regulating because weld seam exists, Tai Songyi causes iron coring vibration, burr between punching is fitted form the loop, strengthens core loss.
Though adopt stretching screw can regulate tightness unshakable in one's determination in addition,, may cause screw rod to cut off inefficacy because screw flight bears whole core pressing pulling force.
The utility model content
For solving the problems of the technologies described above, the utility model proposes a kind of permanent magnet generator stator core compressing structure, adopt the utility model, can make the tightness of stator core be easy to regulate on the one hand, on the other hand, part of the force fixing behind the core pressing is whole bolt, more only relies on the stressed mode reliability of screw thread to be greatly enhanced.
The utility model is realized by adopting following technical proposals:
A kind of permanent magnet generator stator core compressing structure, it is characterized in that: comprise the stator core pressing plate that a side and stator core closely contact, opposite side at the stator core pressing plate is provided with the binding ring that closely contacts with the stator core pressing plate, on support, have screw, the cone locking bolt cooperates with described screw, described cone locking bolt is meant that the front end of clamping screw is a truncated cone, and the outside of binding ring also is a truncated cone, truncated cone lateral surface in the cone locking bolt closely contacts with truncated cone lateral surface in the binding ring.
The number of described cone locking bolt is a plurality of, and the cone locking bolt evenly distributes on the circumference of binding ring.
Compared with prior art, the beneficial effect that the utility model reached is as follows:
1, the core pressing structure that is adopted, the mode that closely contacts by cone locking bolt and binding ring, binding ring will pass pressure to stator core gradually in the process of tighting a bolt, and so just can tighten the degree that compresses that length is regulated stator core by adjusting the cone locking bolt easily.And part of the force fixing behind the core pressing is whole bolt, and reliability improves.
The utility model is particularly useful for half-and-half directly driving compressing of megawatt-level permanent magnet generator stator core.
2, in the utility model, the quantity of cone locking bolt can free adjustment, is convenient to further stator core be compressed.
Description of drawings
The utility model is described in further detail below in conjunction with specification drawings and specific embodiments, wherein:
Fig. 1 is an overall structure schematic diagram of the present utility model
Mark among the figure:
1, stator core pressing plate, 2, binding ring, 3, the cone locking bolt.
Embodiment
With reference to Figure of description 1, the utility model discloses a kind of permanent magnet generator stator core compressing structure, comprise the stator core pressing plate 1 that a side and stator core closely contact, opposite side at stator core pressing plate 1 is provided with the binding ring that closely contacts with stator core pressing plate 1, on support, have screw, cone locking bolt 3 cooperates with described screw, described cone locking bolt 3 is meant that the front end of clamping screw is a truncated cone, and an end of binding ring 2 also is a truncated cone, the side of truncated cone in the cone locking bolt 3 closely contacts with the side of truncated cone in the binding ring 2.The number of cone locking bolt 3 is a plurality of, and cone locking bolt 3 evenly distributes on the circumference of binding ring 2.
Operation principle of the present utility model is as follows:
After stator-core lamination is finished, load onto stator core pressing plate 1, compress pressing plate unshakable in one's determination with a band tapering binding ring 2 and several cone locking bolt 3 actings in conjunction again, reach the effect that stator core is compressed.Have the clamping screw screw on support, binding ring 2 will pass pressure to stator core gradually in the process of tighting a bolt, and so just can tighten the degree that compresses that length is regulated stator core by adjusting clamping screw easily.And part of the force fixing behind the core pressing is whole bolt, and reliability improves, and the quantity of bolt can free adjustment, miscellaneous part is installed can not exert an influence.
Claims (2)
1. permanent magnet generator stator core compressing structure, it is characterized in that: comprise the stator core pressing plate (1) that a side and stator core closely contact, opposite side at stator core pressing plate (1) is provided with the binding ring (2) that closely contacts with stator core pressing plate (1), on support, have screw, cone locking bolt (3) cooperates with described screw, described cone locking bolt (3) is meant that the front end of clamping screw is a truncated cone, and an end of binding ring (2) also is the frustum of a cone, the side of truncated cone in the cone locking bolt (3) closely contacts with truncated cone or conical side in the binding ring (2).
2. permanent magnet generator stator core compressing structure according to claim 1 is characterized in that: the number of described cone locking bolt (3) is a plurality of, and cone locking bolt (3) evenly distributes on the circumference of binding ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206340165U CN201860184U (en) | 2010-11-30 | 2010-11-30 | Pressing structure for permanent magnet generator stator core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206340165U CN201860184U (en) | 2010-11-30 | 2010-11-30 | Pressing structure for permanent magnet generator stator core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201860184U true CN201860184U (en) | 2011-06-08 |
Family
ID=44105983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206340165U Expired - Lifetime CN201860184U (en) | 2010-11-30 | 2010-11-30 | Pressing structure for permanent magnet generator stator core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201860184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928993A (en) * | 2013-01-15 | 2014-07-16 | 日本电产株式会社 | Motor |
-
2010
- 2010-11-30 CN CN2010206340165U patent/CN201860184U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928993A (en) * | 2013-01-15 | 2014-07-16 | 日本电产株式会社 | Motor |
| CN103928993B (en) * | 2013-01-15 | 2017-04-12 | 日本电产株式会社 | Motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |
|
| CX01 | Expiry of patent term |