CN203589985U - Quadrupole permanent magnet synchronous motor rotor - Google Patents
Quadrupole permanent magnet synchronous motor rotor Download PDFInfo
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- CN203589985U CN203589985U CN201320789540.3U CN201320789540U CN203589985U CN 203589985 U CN203589985 U CN 203589985U CN 201320789540 U CN201320789540 U CN 201320789540U CN 203589985 U CN203589985 U CN 203589985U
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Abstract
The utility model relates to a quadrupole permanent magnet synchronous motor rotor, which belongs to the technical field of three-phase AC synchronous motor. According to the motor rotor, an iron core sleeves a rotating shaft and is fixed through screws, the iron core and the rotating shaft are circumferentially positioned through keys, a steel magnet is inserted into a rectangular groove between every two adjacent fan-shaped parts of the iron core, the steel magnets are radially positioned by inserting a groove wedge in each rectangular groove, and the steel magnets are axially positioned by fixing non-magnetic-conducting material insulating baffle plates to both ends of each rectangular groove; a copper sheet is inserted into a copper sheet mounting groove of each fan-shaped part of the iron core respectively, a sleeve ring sleeves on all the fan-shaped parts of the iron core, and the sleeve ring is welded and fixed to the copper sheets and the groove wedges to form a starting cage; and a hoop is mounted onto a step formed by fan-shaped connecting platforms and the rotating shaft by adopting a hot shrinkage mode. The quadrupole permanent magnet synchronous motor rotor a structure for fixing the iron core by additionally arranging the hoop externally and arranging the screws internally, can effectively reduce the stress concentration of the shaft, overcomes the risks caused by welding, ensures the strength of the shaft, and ensures the integral operation effect of the motor.
Description
Technical field
The utility model relates to a kind of four-pole permanent magnet synchronous electric motor rotor, belongs to phase AC synchronous motor technical field.
Background technology
At present the common recognition of motor industry be the efficient height of triphase AC synchronous permanent-magnet motor facility and have smooth efficiency curve, power factor is high and efficiency high and be better than threephase asynchronous.But also there are problems in triphase AC synchronous permanent-magnet motor machine, current four utmost point triphase AC synchronous permanent-magnet motor machines are because the demand of magnet steel is compared with large and cannot adopt magnetic shield cylinder to carry out every magnetic, therefore four utmost point triphase AC synchronous permanent-magnet motor machines ubiquity welding rotating shaft and way unshakable in one's determination when designing, makes rotating shaft and bonding strength unshakable in one's determination lower.In addition, because welding causes rotating shaft, deform, affect the installation site of magnet steel, and then affect the overall performance of motor, make the decline of motor emergent power factor and efficiency, run counter to energy-conservation original intention of original when design, the requirement that does not reach design specifications.Most importantly, four pole three phase asynchronous motor motor shafts carry out processing and manufacturing with the same material that adopts unshakable in one's determination, weld strength can be guaranteed, and four utmost point triphase AC synchronous permanent-magnet motor machines adopt non-magnet material, the permeability magnetic material that adopts unshakable in one's determination, the weld strength of two kinds of different materials cannot reach the intensity of material itself, and after welding, intensity will reduce, and affect the overall performance of motor.
Summary of the invention
The purpose of this utility model is in order to solve four utmost point triphase AC synchronous permanent-magnet motor machine rotating shafts and the lower situation that cannot meet overall performance of weld strength unshakable in one's determination, proposes a kind of permagnetic synchronous motor solid rotor pole core structure.
The purpose of this utility model is achieved through the following technical solutions:
A kind of four-pole permanent magnet synchronous electric motor rotor of the present utility model, comprises rotating shaft, key, iron core, magnet steel, non-magnet material insulation barrier, the collar, copper sheet, slot wedge and hoop;
The stage casing processing cannelure of rotating shaft is processed with four axially grooved and circumferential uniform keyways on cannelure, on the rotating shaft sidewall at cannelure two ends, is processed with screwed hole;
Center unshakable in one's determination is that to be matched with the identical cross section of four structures that the annular cylinder cutting of rotating shaft cannelure forms be fan-shaped bulk-breaking for internal diameter, a length, the outer wall of each fan-shaped bulk-breaking is processed with axially grooved copper sheet mounting groove, each fan-shaped bulk-breaking both sides outward flange inwardly has inclined-plane, and each fan-shaped bulk-breaking inwall center is processed with keyway vertically; The bottom, two ends of each fan-shaped bulk-breaking all extends outward the fan-shaped connected unit of outer wall thread mill drilling vertically, and the ladder platform structure that the ladder platform structure that the inwall of this fan-shaped connected unit and the inwall of fan-shaped bulk-breaking form and the cannelure place of rotating shaft form matches;
The length of non-magnet material insulation barrier and the body thickness of fan-shaped bulk-breaking unshakable in one's determination match, the leading portion of non-magnet material insulation barrier is the shutter matching with the fan-shaped bulk-breaking outer wall of iron core profile, the back segment of non-magnet material insulation barrier is the rectangular slab matching with magnet steel width, and the length of this rectangular slab is not less than the thickness of fan-shaped connected unit unshakable in one's determination;
Centered by hoop, have the loop configuration of ladder hole, the external diameter that the through hole that hoop center internal diameter is larger and fan-shaped connected unit outer wall unshakable in one's determination form circle matches, and the through hole that hoop center internal diameter is less and the external diameter of rotating shaft match;
Magnet steel is the equal in length of length and rotating shaft cannelure;
Iron core is enclosed within outside rotating shaft, each fan-shaped connected unit and shaft screw unshakable in one's determination are fixed, and each fan-shaped bulk-breaking unshakable in one's determination and the cannelure of rotating shaft are circumferentially located by key respectively, make to leave the rectangular channel matching with magnet steel width between adjacent two fan-shaped bulk-breakings, in each rectangular channel, insert magnet steel, by insert the slot wedge of swallow-tail form outward at each rectangular channel, make the magnet steel radial location in rectangular channel, by the fixing non-magnet material insulation barrier in the two ends at each rectangular channel, make the magnet steel axial location in rectangular channel; The upper and lower surface of each magnet steel contacts with slot wedge with rotating shaft by two elastic spacers respectively; In the copper sheet mounting groove of each fan-shaped bulk-breaking unshakable in one's determination, insert respectively copper sheet, and the collar is enclosed within on all fan-shaped bulk-breaking unshakable in one's determination, and the collar is welded and fixed and forms startup cage with copper sheet and slot wedge simultaneously; Adopt hot jacket mode that hoop is installed on the step of fan-shaped connected unit unshakable in one's determination and rotating shaft composition.
Beneficial effect
The utility model adopt additional hoop, in add the structure that screw is fixed iron core, the stress that can effectively reduce axle is concentrated, and overcomes the risk that welding brings, and guarantees the intensity of axle, and then guarantees the operational effect of motor integral body.
Accompanying drawing explanation
Fig. 1 is the structural representation (its A-A that is Fig. 2 is to cross section view) of the utility model synchronous electric motor rotor;
Fig. 2 is that the A-A of Fig. 1 is to cross section view;
Fig. 3 is front view unshakable in one's determination;
Fig. 4 is left view unshakable in one's determination;
Fig. 5 is the front view of rotating shaft;
Fig. 6 is the front view of non-magnet material insulation barrier;
Wherein, 1-non-magnet material insulation barrier; 2-magnet steel; 3-bottom land elastic spacer; 4-groove top elastic spacer; 5-slot wedge; The 6-collar; 7-hoop; 8-copper sheet; 9-is unshakable in one's determination; 10-key; 11-rotating shaft.
Embodiment
Below in conjunction with drawings and Examples, content of the present utility model is described further.
Embodiment
A kind of four-pole permanent magnet synchronous electric motor rotor of the present utility model, as shown in Figure 1, 2, comprises rotating shaft 11, key 10, iron core 9, magnet steel 2, non-magnet material insulation barrier 1, the collar 6, copper sheet 8, slot wedge 5 and hoop 7;
As shown in Figure 5, the stage casing of rotating shaft 11 processing cannelure is processed with four axially grooved and circumferential uniform keyways on cannelure, is processed with two rows and amounts to eight circumferential uniform dislocation screwed holes on rotating shaft 11 sidewalls at cannelure two ends;
As shown in Figure 3,4, unshakable in one's determination 9 center is that to be matched with the identical cross section of four structures that the annular cylinder cutting of rotating shaft 11 cannelures forms be fan-shaped bulk-breaking for internal diameter, a length, the outer wall of each fan-shaped bulk-breaking is processed with axially grooved copper sheet mounting groove, each fan-shaped bulk-breaking both sides outward flange inwardly has inclined-plane, and each fan-shaped bulk-breaking inwall center is processed with keyway vertically; The bottom, two ends of each fan-shaped bulk-breaking all extends outward the fan-shaped connected unit of outer wall thread mill drilling vertically, and the ladder platform structure that the ladder platform structure that the inwall of this fan-shaped connected unit and the inwall of fan-shaped bulk-breaking form and the cannelure place of rotating shaft 11 form matches;
As shown in Figure 6, the length of non-magnet material insulation barrier 1 matches with the body thickness of 9 fan-shaped bulk-breakings unshakable in one's determination, the leading portion of non-magnet material insulation barrier 1 is the shutter matching with 9 fan-shaped bulk-breaking outer wall profiles unshakable in one's determination, the back segment of non-magnet material insulation barrier 1 is the rectangular slab matching with magnet steel 2 width, and the length of this rectangular slab is not less than the thickness of 9 fan-shaped connected units unshakable in one's determination;
Centered by hoop 7, have the loop configuration of ladder hole, the through hole that hoop 7 center internal diameters are larger matches with the external diameter that 9 fan-shaped connected unit outer walls unshakable in one's determination form circle, and the through hole that hoop 7 center internal diameters are less and the external diameter of rotating shaft 11 match;
Unshakable in one's determination 9 are enclosed within outside rotating shaft 11, unshakable in one's determination 9 each fan-shaped connected unit and rotating shaft 11 screws are fixed, and each fan-shaped bulk-breaking of unshakable in one's determination 9 and the cannelure of rotating shaft 11 are circumferentially located by key 10 respectively, make to leave the rectangular channel matching with magnet steel 2 width between adjacent two fan-shaped bulk-breakings, in each rectangular channel, insert magnet steel 2, by insert the slot wedge 5 of swallow-tail form outward at each rectangular channel, make magnet steel 2 radial locations in rectangular channel, by the fixing non-magnet material insulation barrier 1 in the two ends at each rectangular channel, make magnet steel 2 axial location in rectangular channel; The upper and lower surface of each magnet steel 2 contacts with slot wedge 5 with rotating shaft 11 by two elastic spacers respectively, to play the effect of damping in running; In the copper sheet mounting groove of each fan-shaped bulk-breaking of unshakable in one's determination 9, insert respectively copper sheet 8, the collar 6 is enclosed within on all fan-shaped bulk-breaking of iron core 9, and 6 whiles of the collar and copper sheet and slot wedge 5 are welded and fixed to formation startup cage; Adopt hot jacket mode that hoop 7 is installed on the fan-shaped connected unit of iron core 9 and the step of rotating shaft 11 compositions.
Claims (1)
1. a four-pole permanent magnet synchronous electric motor rotor, is characterized in that: comprise rotating shaft, key, iron core, magnet steel, non-magnet material insulation barrier, the collar, copper sheet, slot wedge and hoop;
The stage casing processing cannelure of rotating shaft is processed with four axially grooved and circumferential uniform keyways on cannelure, on the rotating shaft sidewall at cannelure two ends, is processed with screwed hole;
Center unshakable in one's determination is that to be matched with the identical cross section of four structures that the annular cylinder cutting of rotating shaft cannelure forms be fan-shaped bulk-breaking for internal diameter, a length, the outer wall of each fan-shaped bulk-breaking is processed with axially grooved copper sheet mounting groove, each fan-shaped bulk-breaking both sides outward flange inwardly has inclined-plane, and each fan-shaped bulk-breaking inwall center is processed with keyway vertically; The bottom, two ends of each fan-shaped bulk-breaking all extends outward the fan-shaped connected unit of outer wall thread mill drilling vertically, and the ladder platform structure that the ladder platform structure that the inwall of this fan-shaped connected unit and the inwall of fan-shaped bulk-breaking form and the cannelure place of rotating shaft form matches;
The length of non-magnet material insulation barrier and the body thickness of fan-shaped bulk-breaking unshakable in one's determination match, the leading portion of non-magnet material insulation barrier is the shutter matching with the fan-shaped bulk-breaking outer wall of iron core profile, the back segment of non-magnet material insulation barrier is the rectangular slab matching with magnet steel width, and the length of this rectangular slab is not less than the thickness of fan-shaped connected unit unshakable in one's determination;
Centered by hoop, have the loop configuration of ladder hole, the external diameter that the through hole that hoop center internal diameter is larger and fan-shaped connected unit outer wall unshakable in one's determination form circle matches, and the through hole that hoop center internal diameter is less and the external diameter of rotating shaft match;
Magnet steel is the equal in length of length and rotating shaft cannelure;
Iron core is enclosed within outside rotating shaft, each fan-shaped connected unit and shaft screw unshakable in one's determination are fixed, and each fan-shaped bulk-breaking unshakable in one's determination and the cannelure of rotating shaft are circumferentially located by key respectively, make to leave the rectangular channel matching with magnet steel width between adjacent two fan-shaped bulk-breakings, in each rectangular channel, insert magnet steel, by insert the slot wedge of swallow-tail form outward at each rectangular channel, make the magnet steel radial location in rectangular channel, by the fixing non-magnet material insulation barrier in the two ends at each rectangular channel, make the magnet steel axial location in rectangular channel; The upper and lower surface of each magnet steel contacts with slot wedge with rotating shaft by two elastic spacers respectively; In the copper sheet mounting groove of each fan-shaped bulk-breaking unshakable in one's determination, insert respectively copper sheet, and the collar is enclosed within on all fan-shaped bulk-breaking unshakable in one's determination, and the collar is welded and fixed and forms startup cage with copper sheet and slot wedge simultaneously; Adopt hot jacket mode that hoop is installed on the step of fan-shaped connected unit unshakable in one's determination and rotating shaft composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789540.3U CN203589985U (en) | 2013-12-05 | 2013-12-05 | Quadrupole permanent magnet synchronous motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789540.3U CN203589985U (en) | 2013-12-05 | 2013-12-05 | Quadrupole permanent magnet synchronous motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203589985U true CN203589985U (en) | 2014-05-07 |
Family
ID=50587833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320789540.3U Withdrawn - After Issue CN203589985U (en) | 2013-12-05 | 2013-12-05 | Quadrupole permanent magnet synchronous motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203589985U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607091A (en) * | 2013-12-05 | 2014-02-26 | 山西北方机械制造有限责任公司 | Quadrupole permanent magnet synchronous motor rotor |
| CN104967236A (en) * | 2015-06-02 | 2015-10-07 | 山西北方机械制造有限责任公司 | Permanent magnet synchronous motor |
| CN105471143A (en) * | 2014-09-25 | 2016-04-06 | 麦格纳动力系有限公司 | Electric fluid pump with improved rotor unit, rotor unit therefor and methods of construction thereof |
-
2013
- 2013-12-05 CN CN201320789540.3U patent/CN203589985U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607091A (en) * | 2013-12-05 | 2014-02-26 | 山西北方机械制造有限责任公司 | Quadrupole permanent magnet synchronous motor rotor |
| CN103607091B (en) * | 2013-12-05 | 2016-03-02 | 山西北方机械制造有限责任公司 | A kind of four-pole permanent magnet synchronous electric motor rotor |
| CN105471143A (en) * | 2014-09-25 | 2016-04-06 | 麦格纳动力系有限公司 | Electric fluid pump with improved rotor unit, rotor unit therefor and methods of construction thereof |
| US10291091B2 (en) | 2014-09-25 | 2019-05-14 | Magna Powertrain Fpc Limited Partnership | Electric fluid pump with improved rotor unit, rotor unit therefor and methods of construction thereof |
| CN105471143B (en) * | 2014-09-25 | 2019-12-06 | 麦格纳动力系有限公司 | Electric fluid pump with improved rotor unit, rotor unit thereof and method of constructing the same |
| CN104967236A (en) * | 2015-06-02 | 2015-10-07 | 山西北方机械制造有限责任公司 | Permanent magnet synchronous motor |
| CN104967236B (en) * | 2015-06-02 | 2017-11-10 | 山西北方机械控股有限公司 | A kind of permasyn morot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |