CN105896777A - Cage rotor assembly structure and method - Google Patents
Cage rotor assembly structure and method Download PDFInfo
- Publication number
- CN105896777A CN105896777A CN201610506490.1A CN201610506490A CN105896777A CN 105896777 A CN105896777 A CN 105896777A CN 201610506490 A CN201610506490 A CN 201610506490A CN 105896777 A CN105896777 A CN 105896777A
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- China
- Prior art keywords
- sliver
- groove
- punching
- tensioner
- rotor
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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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0012—Manufacturing cage rotors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Induction Machinery (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention provides a cage rotor assembly structure and method. The cage rotor assembly structure comprises end rings, guide strips and rotor punching sheets, wherein punching sheet grooves are formed in the rotor punching sheets, the guide strips penetrate through the rotor punching sheets through the punching sheet grooves, tension grooves are formed between the punching sheet grooves and the guide strips and are the same as opening directions of the punching sheet grooves, the bottoms of the tension grooves extend to the guide strips, the guide strips and the rotor punching sheets are clamped, connected and fixed through the tension grooves, and two ends of the guide strips are separately and fixedly connected with the end rings. During assembly of a cage rotor, the guide strips are firstly tightened and fixed on the rotor punching sheets, and then the two ends of the guide strips are separately and fixedly connected with the end rings. Third-point constraint is formed between the guide strips and the rotor punching sheets by the tension grooves, the guide strips on the cage rotor can be effectively prevented from being deformed and even broken during the high-speed rotation movement process of a motor, the broken fault rate of the guide strips is greatly reduced, and the service lifetime of the cage rotor is prolonged.
Description
Technical field
The present invention relates to cage rotor technical field, a kind of mouse cage especially relating to be applied on AC traction electric motor turns
Son assembling structure and method.
Background technology
It is applied to the AC traction electric motor on relatively high power (more than 3000 horsepowers) exchange diesel locomotive at present, therein
Cage rotor is made up of many slivers, end ring, rotor punchings, and described sliver penetrates rotor punching, and embeds
In the solder slots of end ring, after being welded and fixed, i.e. form cage rotor.In motor operation course, Mus therein
The rotating speed of cage rotor is higher, and especially in the case of the spinning movement of 300 revs/min to 4000 revs/min, mouse cage turns
Easily there is relative displacement in the sliver in son in rotor punching, thus causes the deformation even rhegma of sliver.If Mus
Cage rotor generation sliver deforms, and will reduce service life and the functional reliability of motor of cage rotor；And once mouse cage
Rotor generation sliver rhegma fault, will result directly in motor operation troubles, has had a strong impact on the service life of motor.
Summary of the invention
The technical problem to be solved in the present invention is: the problem existed for prior art, it is provided that a kind of cage rotor assembling
Structure and method, be effectively prevented sliver therein and sliver rhegma fault occur in cage rotor running, extends
The service life of cage rotor.
The technical problem to be solved in the present invention realizes by the following technical solutions: a kind of cage rotor assembling structure, bag
Including end ring, sliver and rotor punching, form punching groove on rotor punching, described sliver runs through rotor by punching groove
Punching, forms the tensioner groove identical with punching channel opening direction, described tensioner trench bottom between described punching groove and sliver
Extend on sliver, described sliver by connecting and fixing between tensioner groove and rotor punching, and sliver two ends respectively with end
Ring connects fixing.
Preferably, described tensioner groove is arranged on the position, middle of sliver.
Preferably, the cross sectional shape of described tensioner groove is U-shaped.
Preferably, the slot length of described tensioner groove is 50mm-100mm.
Preferably, in described tensioner groove, the tensioner groove depth being positioned on sliver is 3mm-3.3mm.
Preferably, in described punching groove, the cross sectional shape of the punching groove at described sliver place is inverted cone.
A kind of cage rotor assembly method, described cage rotor includes end ring, sliver and rotor punching, at rotor punching
Upper formation punching groove, including following installation step:
First, in punching groove, grafting enters sliver, is fixed on rotor punching by tensioner mode by sliver, in punching
Forming the tensioner groove identical with punching channel opening direction between groove with sliver, described tensioner trench bottom extends on sliver；
Then, the two ends of described sliver are connected with end ring respectively fixing.
Preferably, described sliver two ends be connected with end ring respectively fixing after, at position, tensioner groove place, sliver is supplemented and rises
Tightly.
Preferably, the supplementary tensioner of described sliver is to be completed by manual work mode.
Preferably, it is to be connected by induction brazing is fixing between described sliver and end ring.
Compared with prior art, the invention has the beneficial effects as follows: by arranging the tensioner identical with punching channel opening direction
Sliver is fixed on rotor punching by groove, and sliver two ends are connected fixing respectively with end ring, utilize this tensioner groove to make
Be formed between sliver and rotor punching and thirdly retrain, can limit or reduce sliver at rotor punching radially
Relative displacement, can meet again the needs of the sliver free extendable room in rotor punching, such that it is able to be effectively prevented
Sliver on cage rotor during motor high speed rotary motion because of sliver relative to rotor punching produce relative displacement and
Cause the deformation even rhegma of sliver, significantly reduce the fault rate of sliver generation rhegma, extend cage rotor
Service life；Especially, by first tensioner sliver, the rear assembly method connecting sliver, mending the sliver that rises again of fixing, also
The sliver rhegma fault that erection stress is caused can be greatly reduced, reduce the fault rate of sliver generation rhegma further.
Accompanying drawing explanation
Fig. 1 is the unitary construction figure of a kind of cage rotor of present invention assembling structure.
Fig. 2 is the partial enlarged drawing in Fig. 1 at A.
Fig. 3 is the sectional structure chart in the tensioner groove portion in Fig. 1 or Fig. 2.
Labelling in figure: 1-end ring, 2-sliver, 3-rotor punching, 4-punching groove, 5-tensioner groove.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with the accompanying drawings and be embodied as
The present invention is described in detail for example.Should be appreciated that specific embodiment described herein only in order to explain the present invention,
It is not intended to limit the present invention.
Cage rotor assembling structure as shown in Figure 1, Figure 2, Figure 3 shows, including end ring 1, sliver 2 and rotor punching 3,
Forming some punching grooves 4 on rotor punching 3, described sliver 2 runs through rotor punching 3 by punching groove 4, in punching
Form the tensioner groove 5 identical with punching groove 4 opening direction between film trap 4 with sliver 2, prolong bottom described tensioner groove 5
Extend on sliver 2.It should be noted that " tensioner " involved in this patent, it is that directing bar 2 enters punching in grafting
After in groove 4, by apply external force make sliver 2 produce plastic deformation expand, sliver 2 expand extension after,
Realize being fully contacted between rotor punching 3.Therefore, after sliver 2 is carried out tensioner, i.e. punching groove 4 with
Define the tensioner groove 5 identical with punching groove 4 opening direction between sliver 2, sliver 2 can be retrained by tensioner groove 5
Free motion in punching groove 4, is formed that is, utilize this tensioner groove 5 to make between sliver 2 and rotor punching 3
Thirdly retrain.Therefore, described sliver 2 is by connecting and fixing between tensioner groove 5 and rotor punching 3, and sliver
2 two ends are welded and fixed with end ring 1 the most respectively.
Above-mentioned cage rotor assembling structure, can use following cage rotor assembly method to complete, its concrete dress
Join step as follows:
First, sliver 2 grafting is entered in punching groove 4, sliver 2 is carried out tensioner operation, and punching groove 4 with lead
Form the tensioner groove 5 identical with punching groove 4 opening direction between bar 2, bottom described tensioner groove 5, extend to sliver 2
On, thus sliver 2 is fixed on rotor punching 3 by tensioner mode.In punching groove 4, described sliver 2 institute
The cross sectional shape of punching groove be designed to inverted cone, to ensure being fully contacted between sliver 2 and rotor punching 3,
And contact reliability, stability are higher, be conducive to strengthening the bonding strength between sliver 2 and rotor punching 3.
More in view of sliver 2 quantity, and each sliver 2 be required for carrying out corresponding tensioner operation, therefore, can
To use tensioner machine directly to process tensioner groove 5, to improve the tensioner work efficiency of sliver 2.In order to ensure each
Assembling contact area between sliver 2 and rotor punching 3, it is U-shaped that described tensioner groove 5 is processed into cross sectional shape
Tensioner groove, wherein, the slot length L of tensioner groove 5 is 50mm-100mm, and groove depth H of tensioner groove 5 is 5.5mm-5.8mm,
Wherein, the degree of depth of the part tensioner groove being positioned on sliver 2 is 3mm-3.3mm, as shown in Figure 2 and Figure 3.
Then, the two ends of each sliver 2 are welded and fixed with end ring 1 respectively.In order to avoid sliver 2 is solid in welding
The sliver rhegma fault caused because the welding performance at welding point position is inconsistent after Ding, described sliver 2 and end ring
Can connect by induction brazing is fixing between 1.Owing to induction brazing is integral solder, such that it is able to ensure well
The welding performance at the welding point position of each sliver 2 is just the same.After sliver 2 and end ring 1 are welded and fixed,
I.e. form cage rotor.
Owing to the two ends of each sliver 2 are welded and fixed with end ring 1 respectively, affected by welding high temperature, welding stress,
In same sliver 2, two parts sliver being positioned at tensioner groove 5 two ends is possible along the flexible degree of freedom of punching groove 4
Produce difference, so that the contact area between sliver 2 and rotor punching 3 produces larger difference the most therewith, and,
The welding performance being positioned at two parts sliver at tensioner groove 5 two ends and the welding point position of end ring 1 also produces larger difference,
This is unfavorable for preventing sliver 2 from deforming during motor high speed rotary motion even rhegma.To this end, to each
When root sliver 2 carries out tensioner operation, can elder generation of portion tensioner sliver 2 in the rotor so that tensioner groove 5 is positioned at sliver 2
Position, middle.Therefore, when being subjected between sliver 2 and end ring 1, it is positioned at tensioner groove 5 two ends
The length of two parts sliver is basically identical, and its difference of produced erection stress when welding is the least；Meanwhile, exist
After sliver 2 has welded with end ring 1, the welding point position of same sliver 2 two ends and end ring 1 weld remnants
Stress (erection stress) is the most basically identical, thereby may be ensured that the soldering reliability between sliver 2 and end ring 1, enters
One step reduces sliver 2 and the fault rate of rhegma occurs.
After cage rotor welding fabrication, due to sliver 2 therein after welding by welding high temperature, the shadow of welding stress
Ring, make the contact area between sliver 2 and rotor punching 3 be likely to occur change.In order to ensure sliver 2 in welding
After still keep the assembling contact area between rotor punching 3, after sliver 2 two ends are welded and fixed with end ring 1 respectively,
Can carry out sliver 2 at position, tensioner groove 5 place supplementing tensioner operation.Supplementary tensioner herein operates by manually
Operating type completes, and specifically, is the tool that rushes being beaten in its hands by the hand-held hammer of workman, and utilization is rushed tool and acted on sliver
2, to carry out sliver 2 supplementing tensioner operation.Described artificial supplementation tensioner operates with sliver 2 non-loosening phenomenon for sentencing
Disconnected standard.The most why use artificial supplementation tensioner, and do not use tensioner machine to carry out supplementing tensioner, be because Mus
After cage rotor welding molding, if using tensioner machine to carry out supplementing tensioner, not only can increase the erection stress of sliver 2,
And, the misoperation of tensioner machine also can aggravate the rhegma risk of sliver 2.Artificial supplementation tensioner ratio is used to use tensioner
Machine supplements the convenient control of tensioner and operation, and, also ensure that sliver 2 is after welding and between rotor punching 3
Assembling contact area.
After cage rotor uses above-mentioned assembling structure and assembly method, owing to tensioner groove 5 makes sliver 2 rush with rotor
Define between sheet 3 and thirdly retrain, limit or decrease sliver 2 in rotor punching 3 relative displacement radially,
When sliver 2 is subjected to end ring 1, moreover it is possible to meet the sliver 2 sky that freely stretches in rotor punching 3
Between needs, reduce the welding residual stress at the welding point position of sliver 2 two ends and end ring 1.Therefore, at mouse cage
After rotor assembling molding, sliver 2 therein has enough bonding strengths and contact reliability, can be effectively prevented
Sliver 2 deforms even rhegma during motor high speed rotary motion, significantly reduces sliver generation rhegma
Fault rate, extends the service life of cage rotor.Wherein, described rotor punching 3 can use stalloy to make,
Sliver 2 can use CuCr alloy sliver, to facilitate the tensioner operation of sliver 2 and rotor punching 3, and phase after tensioner
Contact is reliable mutually.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, it is noted that
All any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included in this
Within bright protection domain.
Claims (10)
1. a cage rotor assembling structure, including end ring (1), sliver (2) and rotor punching (3), at rotor
Punching (3) is upper forms punching groove (4), and described sliver (2) runs through rotor punching (3) by punching groove (4), its
It is characterised by: between described punching groove (4) and sliver (2), form the tensioner identical with punching groove (4) opening direction
Groove (5), described tensioner groove (5) bottom extends on sliver (2), and described sliver (2) passes through tensioner groove (5)
And rotor punching connects and fixes between (3), and sliver (2) two ends are connected fixing respectively with end ring (1).
A kind of cage rotor assembling structure the most according to claim 1, it is characterised in that: described tensioner groove (5)
It is arranged on the position, middle of sliver (2).
3. assemble structure according to a kind of cage rotor described in claims 1 or 2, it is characterised in that: described tensioner
The cross sectional shape of groove (5) is U-shaped.
A kind of cage rotor assembling structure the most according to claim 3, it is characterised in that: described tensioner groove (5)
Slot length be 50mm-100mm.
A kind of cage rotor assembling structure the most according to claim 3, it is characterised in that: described tensioner groove (5)
In, the tensioner groove depth being positioned on sliver (2) is 3mm-3.3mm.
6. assemble structure according to a kind of cage rotor described in claims 1 or 2, it is characterised in that: described rushes
In film trap (4), the cross sectional shape of the punching groove at described sliver (2) place is inverted cone.
7. a cage rotor assembly method, described cage rotor includes end ring (1), sliver (2) and rotor punching
(3), punching groove (4) is formed rotor punching (3) is upper, it is characterised in that: include following installation step:
First, in punching groove (4), grafting enters sliver (2), and by tensioner mode, sliver (2) is fixed on rotor
In punching (3), formed and identical the rising of punching groove (4) opening direction between punching groove (4) with sliver (2)
Tight groove (5), described tensioner groove (5) bottom extends on sliver (2)；
Then, the two ends of described sliver (2) are connected with end ring (1) respectively fixing.
A kind of cage rotor assembly method the most according to claim 7, it is characterised in that: described sliver (2)
Two ends be connected with end ring (1) respectively fixing after, at tensioner groove (5) position, place, sliver (2) is supplemented tensioner.
A kind of cage rotor assembly method the most according to claim 8, it is characterised in that: described sliver (2)
Supplementary tensioner be to be completed by manual work mode.
10. according to a kind of cage rotor assembly method described in any one of claim 7-9, it is characterised in that: described
It is to be connected by induction brazing is fixing between sliver (2) with end ring (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610506490.1A CN105896777A (en) | 2016-06-29 | 2016-06-29 | Cage rotor assembly structure and method |
| PCT/CN2017/078949 WO2018000876A1 (en) | 2016-06-29 | 2017-03-31 | Cage rotor assembly structure and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610506490.1A CN105896777A (en) | 2016-06-29 | 2016-06-29 | Cage rotor assembly structure and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105896777A true CN105896777A (en) | 2016-08-24 |
Family
ID=56719464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610506490.1A Pending CN105896777A (en) | 2016-06-29 | 2016-06-29 | Cage rotor assembly structure and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105896777A (en) |
| WO (1) | WO2018000876A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026542A (en) * | 2016-08-04 | 2016-10-12 | 中车戚墅堰机车有限公司 | Alternating current traction motor rotor guide strip tensioning tool and method thereof |
| CN106026582A (en) * | 2016-08-12 | 2016-10-12 | 中车永济电机有限公司 | Rotor structure for reducing asynchronous motor cage rotor core punching tooth expansion |
| WO2018000876A1 (en) * | 2016-06-29 | 2018-01-04 | 成都中车电机有限公司 | Cage rotor assembly structure and method |
| CN108494181A (en) * | 2018-03-19 | 2018-09-04 | 蔚来汽车有限公司 | Welding method for conducting bar plug-in type rotor |
| CN108768012A (en) * | 2018-06-13 | 2018-11-06 | 广州西奥多电气设备有限公司 | A kind of squirrel-cage motor rotator and preparation method thereof |
| CN110114965A (en) * | 2017-06-16 | 2019-08-09 | 株式会社东芝 | The rotor of induction conductivity |
| CN113556011A (en) * | 2021-08-04 | 2021-10-26 | 永济市贝特电气机械有限公司 | Method for manufacturing squirrel cage of motor rotor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245453B (en) * | 2018-09-11 | 2023-09-08 | 常州协发机械制造有限公司 | Tensioning mechanism for inner hole of machine base |
| CN109361279B (en) * | 2018-12-20 | 2023-12-26 | 常州神力电机股份有限公司 | High-efficient wind-powered electricity generation is from bonding rotor punching lamination structure |
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| JPH1127887A (en) * | 1997-07-04 | 1999-01-29 | Meidensha Corp | Cage-shaped rotor |
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| CN205753719U (en) * | 2016-06-29 | 2016-11-30 | 成都中车电机有限公司 | A kind of cage rotor assembling structure |
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| CN201298795Y (en) * | 2008-11-18 | 2009-08-26 | 湖南南车时代电动汽车股份有限公司 | Squirrel cage rotor for variable frequency speed asynchronous motor |
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| CN102832773B (en) * | 2012-09-07 | 2015-07-08 | 南车成都机车车辆有限公司 | Rotor guide bar wedging structure of rat cage type alternating-current traction motor |
| CN105896777A (en) * | 2016-06-29 | 2016-08-24 | 成都中车电机有限公司 | Cage rotor assembly structure and method |
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- 2016-06-29 CN CN201610506490.1A patent/CN105896777A/en active Pending
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2017
- 2017-03-31 WO PCT/CN2017/078949 patent/WO2018000876A1/en active Application Filing
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| JPH1118344A (en) * | 1997-06-27 | 1999-01-22 | Toyo Electric Mfg Co Ltd | Rotor of squirrel-cage induction motor |
| JPH1127887A (en) * | 1997-07-04 | 1999-01-29 | Meidensha Corp | Cage-shaped rotor |
| CN102035326A (en) * | 2009-09-30 | 2011-04-27 | 株式会社日立制作所 | Squirrel-cage rotor for electric motor and production method therefor |
| CN205753719U (en) * | 2016-06-29 | 2016-11-30 | 成都中车电机有限公司 | A kind of cage rotor assembling structure |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018000876A1 (en) * | 2016-06-29 | 2018-01-04 | 成都中车电机有限公司 | Cage rotor assembly structure and method |
| CN106026542A (en) * | 2016-08-04 | 2016-10-12 | 中车戚墅堰机车有限公司 | Alternating current traction motor rotor guide strip tensioning tool and method thereof |
| CN106026582A (en) * | 2016-08-12 | 2016-10-12 | 中车永济电机有限公司 | Rotor structure for reducing asynchronous motor cage rotor core punching tooth expansion |
| CN110114965A (en) * | 2017-06-16 | 2019-08-09 | 株式会社东芝 | The rotor of induction conductivity |
| CN110114965B (en) * | 2017-06-16 | 2021-03-09 | 株式会社东芝 | Rotor of induction motor |
| CN108494181A (en) * | 2018-03-19 | 2018-09-04 | 蔚来汽车有限公司 | Welding method for conducting bar plug-in type rotor |
| CN108768012A (en) * | 2018-06-13 | 2018-11-06 | 广州西奥多电气设备有限公司 | A kind of squirrel-cage motor rotator and preparation method thereof |
| CN113556011A (en) * | 2021-08-04 | 2021-10-26 | 永济市贝特电气机械有限公司 | Method for manufacturing squirrel cage of motor rotor |
| CN113556011B (en) * | 2021-08-04 | 2022-05-24 | 永济市贝特电气机械有限公司 | Method for manufacturing squirrel cage of motor rotor |
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| Publication number | Publication date |
|---|---|
| WO2018000876A1 (en) | 2018-01-04 |
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Application publication date: 20160824 |