CN105048674A - Magnetic pole fixing structure of large-and-medium-sized motor salient pole rotor - Google Patents
Magnetic pole fixing structure of large-and-medium-sized motor salient pole rotor Download PDFInfo
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- CN105048674A CN105048674A CN201510497186.0A CN201510497186A CN105048674A CN 105048674 A CN105048674 A CN 105048674A CN 201510497186 A CN201510497186 A CN 201510497186A CN 105048674 A CN105048674 A CN 105048674A
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- magnetic pole
- yoke
- fixing structure
- rotor
- magnetic
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Abstract
The invention relates to a magnetic pole fixing structure of a large-and-medium-sized motor salient pole rotor. The magnetic pole fixing structure is characterized in that the magnetic pole fixing structure includes a left shaft, a right shaft, a magnetic yoke and a magnetic pole; two ends of the magnetic yoke are respectively connected with the outer circumferences of the left shaft and the right shaft; the left shaft and the right shaft are connected with the magnetic yoke, so that a hollow shaft structure can be formed; the magnetic pole is connected onto the magnetic yoke; the magnetic pole comprises a pull rod, a punched sheet and steel press plates; the punched sheet is connected onto the magnetic yoke; the pull rod passes through the punched sheet; the steel press plates include a left steel press plate and a right steel press plate; and the two steel press plates are connected with two sides of the punched sheet and the pull rod. With the magnetic pole fixing structure of the large-and-medium-sized motor salient pole rotor adopted, the weight of the rotor can be effectively reduced, and processing difficulty as well as processing time and raw material costs can be reduced, disassembly and assembly can be facilitated, and requirements for the size of paint dipping and drying equipment can be decreased.
Description
Technical field
The present invention relates to ac synchronous motor technical field, specifically a kind of magnetic pole fixed structure of large and middle size motor field spider.
Background technology
Big-and-middle-sized ac synchronous motor field spider uses whole rotating shaft for a long time, before assembling magnetic pole, hot jacket yoke in rotating shaft, yoke outer surface is processed into regular polygon according to number of magnetic poles, and be processed into T-shaped groove or dove-tail form groove thereon, the below punching of pole lamination becomes T-shaped tail or swallowtail shape, then by between T-shaped tail and T-shaped groove or dovetail and dove-tail form groove axially squeezing into wedge realizes being mounted with of magnetic pole.This kind of structure ubiquity yoke difficulty of processing is large, machining period is long, wedge grinding process is yielding, wedge fixed magnetic pole process can only lean on manual operation, the difficult points such as dismounting is very inconvenient, and whole rotor weight is large, machining period and the cost of raw material high, Unit Weight power of motor density is low, axial dimension is long, and paint-dipping drying equipment size is difficult to difficult points such as meeting.If this structure adopts first assemble magnetic pole in yoke, and then overall thermal is enclosed within axle, so during hot jacket yoke, usual heating-up temperature is at 250 DEG C to about 350 DEG C, this temperature, considerably beyond the temperature that coil insulation on magnetic pole can bear, will cause ageing of insulation even to lose efficacy.
Summary of the invention
Technical problem to be solved by this invention is: provide one can overcome above-mentioned defect, effectively alleviate rotor weight, reduce difficulty of processing, machining period and the cost of raw material, be convenient to dismounting, reduce the motor field spider magnetic pole fixed structure to the requirement of paint-dipping drying equipment size.
The technical solution adopted in the present invention is: the magnetic pole fixed structure providing a kind of large and middle size motor field spider, comprise left axle, right axle, yoke and magnetic pole, the both ends of described yoke are connected on the excircle of left axle and right axle, left axle, right axle and yoke connect to form hollow shaft structure, described magnetic pole is connected in yoke, described magnetic pole comprises pull bar, punching and steel pressing plate, punching is connected in yoke, pull bar is through punching, described steel pressing plate is set to left and right two pieces, and two pieces of steel pressing plates are pressed in the both sides of punching respectively and are connected with pull bar.
Described yoke is connected by the high strength pole bolt run through with magnetic pole.
Two pieces of steel pressing plates are connected with the bolts at two ends of pull bar respectively.
After adopting above structure, large and middle size motor field spider magnetic pole fixed structure of the present invention is arranged to left axle and right axle, yoke is connected on left axle and right axle, form sleeve rotor structure, compared with the rotor of whole axle construction, both the axial length of whole rotor before can effectively shortening dipping lacquer, convenient dipping lacquer and oven dry in small size impregnating vessel and baking oven, again because the hollow-core construction of yoke and rotor obviously can reduce the weight of rotor, reduce the cost of raw material, improve the power density of motor Unit Weight, magnetic pole is fixed in yoke by high strength pole bolt in addition, eliminate the operation of yoke appearance facing cut regular polygon and T-shaped groove or dove-tail form groove, effectively reduce the assembly difficulty of difficulty of processing and large wedge, bolt connection simultaneously makes dismounting more convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of the magnetic pole fixed structure of large and middle size motor field spider of the present invention.
In figure, 1, left axle, 2, right axle, 3, yoke, 4, magnetic pole, 5, pull bar, 6, high strength pole bolt, 7, punching, 8, steel pressing plate.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the magnetic pole fixed structure of large and middle size motor field spider of the present invention, comprise left axle 1, right axle 2, yoke 3 and magnetic pole 4, magnetic pole 4 comprises pull bar 5, punching 7 and steel pressing plate 8, left axle 1 and right axle 2 are independently two axles, the excircle of left axle 1 and right axle 2 is provided with connecting portion, connecting portion is provided with male half coupling, yoke 3 is hollow cylinder structure, the both ends of yoke 3 are connected on the excircle of left axle 1 and right axle 2, namely yoke 3 both ends are processed with screw and inner stopper, left axle 1 and right axle 2 are coordinated by the inner stopper of male half coupling with yoke 3, and be bolted left axle 1, yoke 3 and right axle 2 are fixed in aggregates, left axle 1, right axle 2 connects to form hollow shaft structure with yoke 3, magnetic pole 4 is connected in yoke 3, namely punching 7 is connected in yoke 3, pull bar 5 is through punching 7, steel pressing plate 8 is set to a left side, right two pieces, two pieces of steel pressing plates 8 are pressed in the both sides of punching 7 respectively and are connected with pull bar 5.
The present invention in the specific implementation, high strength pole bolt 6 from inside to outside passes to be connected with magnetic pole 4 from yoke 3 inner headed face and locks, after paint-dipping drying, namely the yoke 3 being provided with magnetic pole 4 coordinates by the inner stopper at its two ends with the male half coupling of left axle 1 and right axle 2 and is fixedly connected with bolt in the cold state, left like this axle 1, right axle 2, yoke 3 just defines sleeve rotor structure, compared with the rotor of whole axle construction, both the axial length of whole rotor before can effectively shortening dipping lacquer, convenient dipping lacquer and oven dry in small size impregnating vessel and baking oven, again because the hollow-core construction that yoke 3 adopts obviously can reduce the weight of rotor, reduce the cost of raw material, improve the power density of motor Unit Weight.Magnetic pole 4 is fixed on the mode in yoke 3 by high strength pole bolt 6, eliminate the operation of yoke 3 appearance facing cut regular polygon and T-shaped groove or dove-tail form groove, effectively reduce the assembly difficulty of difficulty of processing and large wedge, bolt connection simultaneously makes dismounting more convenient.
Claims (3)
1. the magnetic pole fixed structure of a large and middle size motor field spider, it is characterized in that: comprise left axle, right axle, yoke and magnetic pole, the both ends of described yoke are connected on the excircle of left axle and right axle, left axle, right axle and yoke connect to form hollow shaft structure, described magnetic pole is connected in yoke, described magnetic pole comprises pull bar, punching and steel pressing plate, punching is connected in yoke, pull bar is through punching, described steel pressing plate is set to left and right two pieces, and two pieces of steel pressing plates are pressed in the both sides of punching respectively and are connected with pull bar.
2. the magnetic pole fixed structure of large and middle size motor field spider according to claim 1, is characterized in that: described yoke is connected by the high strength pole bolt run through with magnetic pole.
3. the magnetic pole fixed structure of large and middle size motor field spider according to claim 1, is characterized in that: two pieces of steel pressing plates are connected with the bolts at two ends of pull bar respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510497186.0A CN105048674A (en) | 2015-08-14 | 2015-08-14 | Magnetic pole fixing structure of large-and-medium-sized motor salient pole rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510497186.0A CN105048674A (en) | 2015-08-14 | 2015-08-14 | Magnetic pole fixing structure of large-and-medium-sized motor salient pole rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105048674A true CN105048674A (en) | 2015-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510497186.0A Pending CN105048674A (en) | 2015-08-14 | 2015-08-14 | Magnetic pole fixing structure of large-and-medium-sized motor salient pole rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105048674A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004015873A (en) * | 2002-06-04 | 2004-01-15 | Tamagawa Seiki Co Ltd | Rotor structure for rotary electric machine |
| CN101640457A (en) * | 2008-07-31 | 2010-02-03 | 上海电气集团上海电机厂有限公司 | Method for installing magnetic poles of AC/AC variable-frequency steel-rolling motor rotors |
| CN201478896U (en) * | 2009-06-23 | 2010-05-19 | 无锡市华东钢业机械有限公司 | Magnetic steel falling prevention mechanism of permasyn motor rotor |
-
2015
- 2015-08-14 CN CN201510497186.0A patent/CN105048674A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004015873A (en) * | 2002-06-04 | 2004-01-15 | Tamagawa Seiki Co Ltd | Rotor structure for rotary electric machine |
| CN101640457A (en) * | 2008-07-31 | 2010-02-03 | 上海电气集团上海电机厂有限公司 | Method for installing magnetic poles of AC/AC variable-frequency steel-rolling motor rotors |
| CN201478896U (en) * | 2009-06-23 | 2010-05-19 | 无锡市华东钢业机械有限公司 | Magnetic steel falling prevention mechanism of permasyn motor rotor |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |
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| RJ01 | Rejection of invention patent application after publication |