CN204538922U - A kind of two mouse cage Compound cage efficient electric machine rotor - Google Patents
A kind of two mouse cage Compound cage efficient electric machine rotor Download PDFInfo
- Publication number
- CN204538922U CN204538922U CN201520178258.0U CN201520178258U CN204538922U CN 204538922 U CN204538922 U CN 204538922U CN 201520178258 U CN201520178258 U CN 201520178258U CN 204538922 U CN204538922 U CN 204538922U
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- China
- Prior art keywords
- cage
- rotor
- bar
- squirrel
- mouse cage
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000010949 copper Substances 0.000 claims abstract description 53
- 229910052802 copper Inorganic materials 0.000 claims abstract description 53
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000012797 qualification Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000004080 punching Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 239000004411 aluminium Substances 0.000 description 8
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Induction Machinery (AREA)
Abstract
The utility model relates to a kind of two mouse cage Compound cage efficient electric machine rotor and preparation method thereof, belong to motor technology field, comprise rotor, comprise the inside and outside mouse cage that squirrel-cage bar is adjacent to each other or tangent in the iron core of described rotor, the end ring at the squirrel-cage bar two ends of inside and outside mouse cage is coupled as one respectively; Described outer mouse cage uses resistivity higher aluminum cast material, fine copper (red copper) bar material that interior mouse cage uses resistivity lower.The cross section of described inside and outside squirrel-cage bar is circular, ellipse, pyriform or knife-edge.Described fine copper rod is red copper bar.The utility model is rational in infrastructure simply, preparation method section emulates the advanced, and the first-time qualification rate of product is high, shortens the production cycle of product.
Description
Technical field
The utility model relates to a kind of two mouse cage Compound cage efficient electric machine rotor, belongs to motor technology field.
Background technology
AC asynchronous motor commonly used by current electric machinery, and usually adopt cage rotor structure, its major defect is that starting characteristic is poor, and under volume limited case, efficiency improves limited.Within the scope of middle low power, motor will reach the requirement of IE3 and IE4 efficiency, must add large volume, and material increases, and component universality is poor.
Use cast copper, the maximum challenge of copper casting rotor is casting technique problem, because the fusing point of aluminium is 700 DEG C, and the fusing point of copper is up to 1100 DEG C, temperature high is like this all very large test to mould and silicon steel sheet, and mold cost is high, life-span is short, the cast molding qualification rate that aluminium is such cannot be reached, cause the overall high cost of rotor, be difficult at present apply.
Utility model content
The utility model is exactly for above-mentioned the deficiencies in the prior art, provides a kind of Compound cage efficient electric machine rotor reducing starting current, improve electric efficiency.
The technical solution of the utility model is, the efficient electric machine rotor of a kind of pair of mouse cage Compound cage, comprise rotor, it is characterized in that, the iron core of described rotor is provided with inside and outside mouse cage, the inside and outside squirrel-cage bar of inside and outside mouse cage is adjacent to each other or tangent, and the end ring at inside and outside squirrel-cage bar two ends is coupled as one respectively; What described outer squirrel-cage bar adopted is resistivity higher aluminum cast material, and what interior squirrel-cage bar adopted is fine copper (red copper) bar material that resistivity is lower.
The cross section of described inside and outside squirrel-cage bar is circular, ellipse, pyriform or knife-edge.
A preparation method for the efficient electric machine rotor of pair mouse cage Compound cage, comprises the following steps:
1) rotor core is laminated,
(1) false key and dummy shaft are set, false key is fixing on dummy shaft;
(2) rotor punching of inside and outside cage grooves that has managed is inserted in dummy shaft, first the rotor punching that thick for 20 ~ 25mm folds is inserted on dummy shaft, in the cage grooves that interior mouse cage is opposed, insert 2 locating bars, more remaining rotor punching is inserted in dummy shaft successively, fold rotor punching;
(3) rotor punching folded is laminated fastening on forcing press;
2) the interior mouse cage fine copper (red copper) that interts is excellent,
(1) groove process is pushed away to cage grooves in rotor, enable the tolerance of interior cage grooves meet the requirement of fine copper (red copper) rod assembling;
(2) locating bar of 2 in interior mouse cage is taken out;
(3) fine copper (red copper) rod is put into the cage grooves of rotor, with hard pole, fine copper (red copper) rod is sent into the bottom of interior cage grooves, until all interior cage grooves to be filled fine copper (red copper) rod, described fine copper (red copper) rod is red copper bar;
3) the outer mouse cage cast aluminium of rotor,
(1) be equipped with cast-aluminum die and subsidiary engine, cast-aluminum die comprises upper, middle and lower cast-aluminum die, and the fan blade groove of cast-aluminum die, balance columns groove, exhaust duct are unimpeded;
(2) cast-aluminum die is installed, in, lower cast-aluminum die is placed on the planker of subsidiary engine, upper cast-aluminum die is fastening by T-slot bolt and moved cross beam, and even brushing graphite finish;
(3) according to by the specification of die-casting rotor, the position of the gate velocity of cast-aluminum die, injection ratio pressure, opening stroke and each travel switch is adjusted;
(4) to the cast-aluminum die injection cast aluminium that mounting and adjusting is good, successively through matched moulds, matched moulds time delay, slow shot, fast shot, supercharging time delay, injection pressure release, matched moulds pressure release, die sinking, blank, exit dummy shaft, cast the fan blade on the outer mouse cage of the entirety be made up of outer squirrel-cage bar and end ring and end ring and balance columns, obtain the efficient electric machine rotor of two mouse cage Compound cage.
In described in step 2, cage grooves dimensional accuracy after pushing away groove process is 0 ~ 0.08mm.
The push broach material pushing away groove to described interior cage grooves in step 2 is high-speed steel, and push broach heat treatment hardness is HRC 60 ~ 64.
Gate velocity described in step 3 is 10 ~ 15m/s.
Injection ratio pressure described in step 3 is 18 ~ 25MPa.
The utility model is rational in infrastructure simply, section emulates the advanced, the efficient electric machine rotor of this pair of mouse cage Compound cage, when starting, due to kelvin effect, make starting current concentrate on outer mouse cage, be equivalent to effective cross-section little, effective resistance is large, power factor increases, and result is that the starting current of motor reduces, and starting torque increases.During normal work, because rotor loop frequency is low, kelvin effect is minimum, and two mouse cage all plays a role, and be equivalent to effective cross-section and increase, effective resistance reduces.So double-cage rotor, improve starting performance and service behaviour.The cross section of inside and outside squirrel-cage bar is circular, ellipse, pyriform or knife-edge, and this conventional rotor slot shape structure, affects starting performance mainly through kelvin effect.In the utility model, fine copper rod is red copper bar, rotor windings loss is very large by the impact of rotor structure, because conventional rotor structure has cast-aluminum rotor and copper bar rotor, the resistivity of copper is much less than the resistivity of aluminium, be about 60% of aluminium resistivity, so adopt the few half of the loss of the loss ratio cast-aluminum rotor of copper bar rotor.
The first-time qualification rate of the utility model product is high, and shorten the production cycle of product, also tool has the following advantages:
The first, utilizing axis hole keyway to locate with three-phase asynchronous motor rotor iron core laminates compared with technique, the advantage laminating technique of the present utility model is, owing to have employed locating bar location and dummy shaft location, the evenness of rotor core groove can be ensured, the machining accuracy of rotor core is enable to meet the matching requirements of fine copper (red copper) rod, what not only increase rotor core laminates quality, shortens the machining process of motor;
The second, the interspersed technique of fine copper (red copper) rod, add and push away groove technical process, the tolerance of interior cage grooves is enable to meet the requirement of fine copper (red copper) rod assembling, optimize the technical process of fine copper (red copper) rod assembling, shorten the process-cycle of fine copper (red copper) rod assembling, the first-time qualification rate of product is high, shortens the production cycle of product.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is rotor punching structure schematic diagram of the present utility model.
In figure: squirrel-cage bar in 1 rotor punching, 2 end ring, 3 outer squirrel-cage bars, 4.
Embodiment
Illustrate that the utility model is described in further detail below in conjunction with accompanying drawing and accompanying drawing.
A kind of two mouse cage Compound cage efficient electric machine rotor, comprise rotor, comprise the inside and outside mouse cage that squirrel-cage bar is adjacent to each other or tangent in the iron core of described rotor, the end ring 2 at the squirrel-cage bar two ends of inside and outside mouse cage is coupled as one respectively; For improving the starting characteristic of asynchronous motor, the outer squirrel-cage bar 3 of outer mouse cage uses resistivity higher aluminum cast material, interior squirrel-cage bar 4 is fine copper (red copper) rod that resistivity is lower, and in the iron core of rotor, the cross section of inside and outside squirrel-cage bar is circular, ellipse, pyriform or knife-edge.The total cross section of inside and outside two squirrel-cage bars of corresponding common cage rotor every bar mouse cage is greater than the former.
Prepare the two mouse cage Compound cage efficient electric machine rotor of above-mentioned one, comprise the following steps:
Step 1, rotor core laminate, and comprise:
(1) false key and dummy shaft are set, false key is fixing on dummy shaft;
(2) by managed have interior cage grooves, the rotor punching 1 of outer cage grooves is inserted in dummy shaft, first the rotor punching 1 that thick for 20 ~ 25mm folds is inserted on dummy shaft, 2 locating bars are inserted in cage grooves in interior mouse cage is opposed, again remaining rotor punching 1 is inserted in dummy shaft successively, fold rotor punching 1, ensure the evenness of rotor core cage grooves;
(3) rotor punching 1 folded is laminated fastening on forcing press;
Step 2, interior mouse cage fine copper (red copper) rod that interts, comprise:
(1) before rotor fine copper (red copper) rod interts, the push broach using high-speed steel to make pushes away groove to cage grooves in rotor, the tolerance of interior cage grooves is enable to meet the requirement of fine copper rod assembling, interior cage grooves dimensional accuracy after pushing away groove process is 0 ~ 0.08mm, and push broach heat treatment hardness is HRC 60 ~ 64.
(2) locating bar of 2 in interior mouse cage is taken out;
(3) fine copper (red copper) rod is put into the cage grooves of rotor, with hard pole, fine copper (red copper) rod is sent into the bottom of interior cage grooves, until all interior cage grooves to be filled fine copper (red copper) rod;
Step 3, to the outer mouse cage cast aluminium of rotor,
(1) be equipped with cast-aluminum die and subsidiary engine, cast-aluminum die comprises upper, middle and lower cast-aluminum die, and the fan blade groove of cast-aluminum die, balance columns groove, exhaust duct are unimpeded;
(2) cast-aluminum die is installed, in, lower cast-aluminum die is placed on the planker of subsidiary engine, upper cast-aluminum die is fastening by T-slot bolt and moved cross beam, and even brushing graphite finish;
(3) according to the position being adjusted the gate velocity of cast-aluminum die, injection ratio pressure, opening stroke and each travel switch by the specification of die-casting rotor;
(4) to the cast-aluminum die injection cast aluminium that mounting and adjusting is good, successively through matched moulds, matched moulds time delay, slow shot, fast shot, supercharging time delay, injection pressure release, matched moulds pressure release, die sinking, blank, exit dummy shaft, cast the fan blade on the outer mouse cage of the entirety be made up of outer squirrel-cage bar and end ring and end ring and balance columns, obtain the efficient electric machine rotor of two mouse cage Compound cage.
Claims (3)
1. the efficient electric machine rotor of a two mouse cage Compound cage, comprise rotor, it is characterized in that: the iron core of described rotor is provided with inside and outside mouse cage, the inside and outside squirrel-cage bar (4,3) of inside and outside mouse cage is adjacent to each other or tangent, and the end ring (2) at inside and outside squirrel-cage bar (4,3) two ends is coupled as one respectively; What described outer squirrel-cage bar (3) adopted is resistivity higher aluminum cast material, and what interior squirrel-cage bar (4) adopted is the fine copper bar material that resistivity is lower.
2. the efficient electric machine rotor of according to claim 1 pair of mouse cage Compound cage, is characterized in that, the cross section of described inside and outside squirrel-cage bar (4,3) is circular, ellipse, pyriform or knife-edge.
3. the efficient electric machine rotor of according to claim 1 pair of mouse cage Compound cage, is characterized in that, described fine copper rod is red copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520178258.0U CN204538922U (en) | 2015-03-27 | 2015-03-27 | A kind of two mouse cage Compound cage efficient electric machine rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520178258.0U CN204538922U (en) | 2015-03-27 | 2015-03-27 | A kind of two mouse cage Compound cage efficient electric machine rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204538922U true CN204538922U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520178258.0U Expired - Fee Related CN204538922U (en) | 2015-03-27 | 2015-03-27 | A kind of two mouse cage Compound cage efficient electric machine rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204538922U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242879A (en) * | 2018-03-16 | 2018-07-03 | 深圳派赛科技有限公司 | Double-cage rotor motor |
| CN112653301A (en) * | 2020-12-22 | 2021-04-13 | 大连船用推进器有限公司 | Method and mould for manufacturing squirrel-cage motor rotor |
-
2015
- 2015-03-27 CN CN201520178258.0U patent/CN204538922U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242879A (en) * | 2018-03-16 | 2018-07-03 | 深圳派赛科技有限公司 | Double-cage rotor motor |
| CN112653301A (en) * | 2020-12-22 | 2021-04-13 | 大连船用推进器有限公司 | Method and mould for manufacturing squirrel-cage motor rotor |
| CN112653301B (en) * | 2020-12-22 | 2023-11-14 | 大连船用推进器有限公司 | Manufacturing method of squirrel-cage motor rotor and manufacturing mold thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 |