CN105743241A - Tooth pressing plate for compacting stator and rotor core of large motor - Google Patents
Tooth pressing plate for compacting stator and rotor core of large motor Download PDFInfo
- Publication number
- CN105743241A CN105743241A CN201610197726.8A CN201610197726A CN105743241A CN 105743241 A CN105743241 A CN 105743241A CN 201610197726 A CN201610197726 A CN 201610197726A CN 105743241 A CN105743241 A CN 105743241A
- Authority
- CN
- China
- Prior art keywords
- tooth
- pressing plate
- tooth support
- groove
- tooth pressing
- Prior art date
- 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.)
- Pending
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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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
-
- 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
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
Abstract
The invention relates to the field of motors, in particular to a tooth pressing plate for compacting a stator and rotor core of a large motor, and solves the problems of large tooth expansion amount and easy tooth breakage of an existing motor tooth pressing plate. According to the scheme, the tooth pressing plate for compacting the stator and rotor core of the large motor comprises a tooth pressing plate body, wherein an overlying groove facing to one opposite side surface of tooth pressing strips and communicating with the side surface is formed in one surface of a pressing plate body of the tooth pressing plate body; and connecting holes are formed in the overlying groove. The tooth pressing plate has the advantages that 1, high-strength alloy steel meeting a strength requirement is selected and used according to a requirement of overlying force, so that the problems of excessive tooth root stress and tooth breakage of the tooth pressing plate are solved; and 2, the axial elastic bounce amount of a tooth root is calculated according to the requirement of the overlying force and pre-added to the thickness of the tooth pressing strips, and the overlying groove bends and deforms in a process of compacting silicon steel sheets by the tooth pressing plate to increase the overlying force, thereby effectively preventing the tooth expansion problem caused by bouncing deformation of the tooth pressing plate.
Description
Technical field
The present invention relates to machine field, be specially large-size machine stator-rotor iron core compression tooth support.
Background technology
The stator-rotor iron core of large-size machine is laminated integral iron core by a number of stalloy (punching), the compression of iron core is very big for the impact of motor electric property, and tooth support is that the stalloy both ends of the surface after laminating are for fixing connection member (as shown in accompanying drawing 1,2).Existing tooth support includes circular arc pressing plate body 1, described pressing plate body 1 circular arc side along the uniform teeth portion press strip 2 being connected to and matching with stalloy profile of tooth, described pressing plate body 1 and teeth portion press strip 2 uniform thickness；Described pressing plate body 1 has connecting hole 3.For medium-and-large-sized electric machine rotor, punching diameter is big, grooved is big, teeth portion is elongated and poor rigidity intensity is low, iron core laminated power is big, and for the direct driving motor of more than 1.5MW, tooth root position stress reaches more than 250MPa, tooth rise (the teeth portion amount of flicking) reach more than 3mm, the compression of iron core teeth portion and tooth rise an individual difficult problem especially.The tooth support of existing core ends all has a disadvantage in that 1. tooth supports adopt general steel plate to be processed into, and intensity is low, and teeth portion stress is big, there is broken teeth risk；2. the own poor rigidity of tooth support, self teeth portion amount of flicking is big, it is impossible to the teeth portion being effective against core stamping flicks.Therefore, design one can effectively control tooth and rise, and the large-size machine stator-rotor iron core compression tooth support that teeth portion not easily disconnects extremely is necessary.
Summary of the invention
This invention address that the problem that the existing motor tooth support tooth amount of rising is big and teeth portion is easily broken off, it is provided that a kind of large-size machine stator-rotor iron core compression tooth support.
The present invention is achieved by the following technical solutions: large-size machine stator-rotor iron core compression tooth support, including tooth support body, the pressing plate body one side of described tooth support body has towards teeth portion press strip opposite side face, and through with this side laminates groove；Described connecting hole is positioned at and laminates groove.According to silicon steel sheet stack pressure requirement, calculating the axially amount of flicking at tooth support tooth root position, increased to by this deflection in the thickness of teeth portion press strip in advance, tooth that deformation causes rises can effectively to prevent tooth support itself from flicking.Connecting hole position has and laminates groove, tooth support can be made to laminate groove when compressing and occur bending and deformation, and resilience force makes tooth support compress stalloy, can effectively control tooth and rise.
Described tooth support is high strength alloy steel tooth support.High strength alloy steel material can meet folded pressure requirements, solves that medium-and-large-sized motor tooth support root portion stress is excessive and broken teeth problem.The described groove root that laminates is circular arc chamfering.When circular arc chamfering can make to laminate groove flexural deformation, stress uniformly diffuses on pressing plate body and teeth portion press strip, it is prevented that stress is concentrated and caused that teeth portion press strip is from fracture of root.Described teeth portion press strip thickness is pressing plate body thickness and laminate groove deflection (namely laminating groove depth) sum under laminating power, described in laminate groove depth and range for 1 ~ 6mm.According to silicon steel sheet stack pressure requirement, calculating the axially amount of flicking at tooth support tooth root position, increased to by this deflection in the thickness of teeth portion press strip in advance, tooth that deformation causes rises can effectively to prevent tooth support itself from flicking.Teeth portion press strip thickness is pressing plate body thickness and laminate groove deflection (namely laminating groove depth) sum under laminating power, laminates groove depth and optional ranges for 1 ~ 6mm according to high strength alloy steel rigidity is different.
The invention have the advantages that 1, select, according to folded pressure requirements, the high strength alloy steel meeting requirement of strength, it is possible to resolve large and middle size motor tooth support root portion stress is excessive and broken teeth problem；2, according to folded pressure requirements, calculate the axially amount of flicking at tooth root position, this amount of flicking is increased in advance in the thickness of teeth portion press strip, tooth support compresses in stalloy process, laminate groove flexural deformation, increase the power of laminating, effectively prevent tooth support itself and flick the tooth that causes of the deformation problem that rises and occur.
Accompanying drawing explanation
Fig. 1 is tooth pressboard structure top view；
Fig. 2 is that tooth support installs and uses schematic diagram；
Fig. 3 is tooth pressboard structure side view of the present invention；
Fig. 4 is that tooth support of the present invention laminates deformation lateral side view.
In figure: 1-pressing plate body, 2-teeth portion press strip, 3-connecting hole, 4-laminates groove, 5-stretching screw, 6-stalloy, 7-tooth support.
Detailed description of the invention
Large-size machine stator-rotor iron core compression tooth support, including tooth support body, pressing plate body 1 one side of described tooth support body has towards teeth portion press strip 2 opposite side face, and through with this side laminates groove 4；Described connecting hole 3 is positioned at and laminates groove 4.
Described tooth support is high strength alloy steel tooth support.Described groove 4 root that laminates is circular arc chamfering.Described teeth portion press strip 2 thickness is pressing plate body 1 thickness and laminate groove 4 deflection (namely laminating groove 4 degree of depth) sum under laminating power, described in laminate groove 4 depth bounds be 1 ~ 6mm.
During use, two panels tooth support 7 is respectively placed in the stalloy after laminating 6 both ends of the surface, laminate groove 4 to be inwardly oppositely arranged, teeth portion press strip 2 aligns with profile of tooth on stalloy and is adjacent to, the connecting hole 3 in groove 4 shape is laminated with stretching screw 5, bolt traverse, the tooth support of both ends of the surface is locked so that after laminating groove 4 bending, groove bottom is fitted with stalloy end face.So far, tooth support installation, now laminate groove 4 flexural deformation, stretching screw 5, bolt pulling force, laminate the resilience force combined effect of groove 4 deformation, laminate stalloy.
Claims (5)
1. a large-size machine stator-rotor iron core compression tooth support, including tooth support body, it is characterised in that: the pressing plate body (1) of described tooth support body one side has towards teeth portion press strip (2) opposite side face, and through with this side laminates groove (4)；Described connecting hole (3) is positioned at and laminates groove (4).
2. large-size machine stator-rotor iron core compression tooth support according to claim 1, it is characterised in that: described tooth support is high strength alloy steel tooth support.
3. large-size machine stator-rotor iron core compression tooth support according to claim 1 and 2, it is characterised in that: described in laminate groove (4) root be circular arc chamfering.
4. large-size machine stator-rotor iron core compression tooth support according to claim 1 and 2, it is characterized in that: described teeth portion press strip (2) thickness is pressing plate body (1) thickness and laminate groove (4) deflection sum under laminating power, described in laminate groove (4) depth bounds be 1 ~ 6mm.
5. large-size machine stator-rotor iron core compression tooth support according to claim 3, it is characterized in that: described teeth portion press strip (2) thickness is pressing plate body (1) thickness and laminate groove (4) deflection sum under laminating power, described in laminate groove (4) depth bounds be 1 ~ 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197726.8A CN105743241A (en) | 2016-03-31 | 2016-03-31 | Tooth pressing plate for compacting stator and rotor core of large motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197726.8A CN105743241A (en) | 2016-03-31 | 2016-03-31 | Tooth pressing plate for compacting stator and rotor core of large motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105743241A true CN105743241A (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610197726.8A Pending CN105743241A (en) | 2016-03-31 | 2016-03-31 | Tooth pressing plate for compacting stator and rotor core of large motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105743241A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208451A (en) * | 2016-08-31 | 2016-12-07 | 安徽安凯汽车股份有限公司 | A kind of magneto composite fabricated rotor end plate |
| CN109494899A (en) * | 2018-12-25 | 2019-03-19 | 重庆赛力盟电机有限责任公司 | Large number of poles stator end plate |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57180352A (en) * | 1981-04-27 | 1982-11-06 | Sanyo Electric Co Ltd | Manufacture of motor core |
| CN201466810U (en) * | 2009-06-30 | 2010-05-12 | 上海电气电站设备有限公司 | Inward inclined tooth support structure for generator |
| CN102005831A (en) * | 2010-10-11 | 2011-04-06 | 南车株洲电机有限公司 | Stator core of large wind driven generator and manufacturing method thereof |
| CN202210740U (en) * | 2011-09-01 | 2012-05-02 | 西安盾安电气有限公司 | Rotor end holding plate |
| CN203243128U (en) * | 2013-03-18 | 2013-10-16 | 新誉集团有限公司 | Iron core end plate |
| CN103715802A (en) * | 2013-12-01 | 2014-04-09 | 王必生 | Permanent magnet motor rotor structure |
| CN104218704A (en) * | 2014-09-27 | 2014-12-17 | 永济新时速电机电器有限责任公司 | Motor rotor pressing plate |
| CN104600885A (en) * | 2014-12-28 | 2015-05-06 | 中国船舶重工集团公司第七一二研究所 | Integrated ventilating type tooth support |
-
2016
- 2016-03-31 CN CN201610197726.8A patent/CN105743241A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57180352A (en) * | 1981-04-27 | 1982-11-06 | Sanyo Electric Co Ltd | Manufacture of motor core |
| CN201466810U (en) * | 2009-06-30 | 2010-05-12 | 上海电气电站设备有限公司 | Inward inclined tooth support structure for generator |
| CN102005831A (en) * | 2010-10-11 | 2011-04-06 | 南车株洲电机有限公司 | Stator core of large wind driven generator and manufacturing method thereof |
| CN202210740U (en) * | 2011-09-01 | 2012-05-02 | 西安盾安电气有限公司 | Rotor end holding plate |
| CN203243128U (en) * | 2013-03-18 | 2013-10-16 | 新誉集团有限公司 | Iron core end plate |
| CN103715802A (en) * | 2013-12-01 | 2014-04-09 | 王必生 | Permanent magnet motor rotor structure |
| CN104218704A (en) * | 2014-09-27 | 2014-12-17 | 永济新时速电机电器有限责任公司 | Motor rotor pressing plate |
| CN104600885A (en) * | 2014-12-28 | 2015-05-06 | 中国船舶重工集团公司第七一二研究所 | Integrated ventilating type tooth support |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208451A (en) * | 2016-08-31 | 2016-12-07 | 安徽安凯汽车股份有限公司 | A kind of magneto composite fabricated rotor end plate |
| CN109494899A (en) * | 2018-12-25 | 2019-03-19 | 重庆赛力盟电机有限责任公司 | Large number of poles stator end plate |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |
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| RJ01 | Rejection of invention patent application after publication |