CN107359752A - A kind of spliced cast-aluminum dummy shaft - Google Patents
A kind of spliced cast-aluminum dummy shaft Download PDFInfo
- Publication number
- CN107359752A CN107359752A CN201710711986.7A CN201710711986A CN107359752A CN 107359752 A CN107359752 A CN 107359752A CN 201710711986 A CN201710711986 A CN 201710711986A CN 107359752 A CN107359752 A CN 107359752A
- Authority
- CN
- China
- Prior art keywords
- tapered column
- dummy shaft
- position limit
- support arm
- bolt
- 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
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a kind of spliced cast-aluminum dummy shaft, including the cylindrical dummy shaft body formed by the first Tapered Column and the second Tapered Column nesting, the big end of first Tapered Column is cylindrical end, cylindrical end inwardly side it is upper along connection position limit arm, lower edge connects support arm, the cross section of position limit arm is in circular arc, the longitudinal section of support arm is wedge shaped, big end and the position limit arm of support arm are oppositely arranged, the cavity surrounded between the big end of support arm and position limit arm is nested chamber, the small end of second Tapered Column is provided with the nested end to match with nested chamber, bolt hole is additionally provided with through the small end of the first Tapered Column and the big end of the second Tapered Column, bolt is provided with bolt hole.Compared with prior art, the beneficial effects of the invention are as follows：Bolt need to be only pulled down when moving back axle, the second Tapered Column then is pulled away from into the first Tapered Column along inclined-plane can move back axle, simple in construction, easy to use, and be unlikely to deform, that axis hole laminates regularity is good, production efficiency is high, saving water resource.
Description
Technical field
Of the invention and a kind of spliced cast-aluminum dummy shaft, belongs to apparatus for cast-aluminium rotor of electric machine manufacturing field.
Background technology
In the prior art, centrifugal aluminum casting rotor dummy shaft is turned using overall fixed outer round belt muscle structure dummy shaft, centrifugal aluminum casting
Son pour move back axle when using rising-heat contracting-cold principle, quickly cool down cast-aluminum dummy shaft with water, cast-aluminum dummy shaft is cooled down receipts rapidly
Contracting, to realize that rotor moves back axle, this structure cast-aluminum dummy shaft, existing defects in use：Quickly cooled down with water and move back axle, rotor core temperature
Degree is higher（500-600℃）Contacted with water, punching material can produce stress, cause the punching of axis hole both ends to flick, deformation, overall solid
The outer round belt muscle structure dummy shaft of fixed pattern, by repeatedly then heating is quickly cooled down with water for several times, dummy shaft is deformed the wave with dummy shaft
Taking, rotor iron core lamination touches the water capacity and easily causes getting rusty for iron core, waste water resource, influences motor performance and presentation quality,
Precision is difficult to ensure that, it is impossible to meets the needs of high-end customer.
The patent of Chinese patent 200920256862.5, which discloses a kind of two-flap type, can rise structure cast-aluminum dummy shaft, and it includes tool
The dummy shaft body that at least two valve dummy shaft dummy shafts for having endoporus are formed, is arranged on supporting plate and the connection at dummy shaft body endoporus both ends
The locking device of both ends supporting plate, the both ends endoporus of the dummy shaft body is taper hole, and described supporting plate is with endoporus contact surface
The conical surface, described locking device include mandrel and locking nut, and described mandrel passes through described supporting plate and described lock
Tight nut thread connection.
Problems be present in above-mentioned patent：One, needs to put into the axle that moves back that forcing press realizes cast-aluminum rotor, equipment investment cost
It is high.The two, abundant tensioners of structure cast-aluminum dummy shaft two end portions that can rise, but the tensioner effect of middle part is not as good as both ends, in causing
Between stagger between piece, the rotor punching axis hole of centre can be caused uneven, it is impossible to which ensure axis hole laminates regularity.
Expansion sleeve type cast-aluminum dummy shaft disclosed in Chinese patent 200910030980.9, is included on axle bed and is provided with mandrel,
Expansion set is set with outside mandrel, expansion set outer surface offers outside keyway, positioning key is plugged with keyway, outside expansion set axially along
Rotor core is set with, rotor core installation endoporus side wall offers internal keyway, positioning key outer end grafting axially along
In internal keyway, the pressing plate for being pressed against rotor core is socketed with mandrel, being bolted with mandrel makes pressing plate hold out against rotor
The clamp nut of iron core, one section of mandrel for being socketed with expansion set is cone, and the pad for being pressed against expansion set end face is set with mandrel
Plate, clapboard is provided with the mandrel above backing plate.
Problems be present in above-mentioned patent：Expansion set is set with outside mandrel, expansion set outer surface offers external key axially along
Groove, positioning key is plugged with keyway, due to the addition of positioning key, cause the outer circumference surface that expansion set is formed with positioning key to may not be
Positive round, and size is uncontrollable, it is possible to it is overproof, influence precision.
The content of the invention
In order to solve technical problem present in background technology, present invention offer is a kind of simple in construction, and tensioner effect is good, no
It is good that yielding, axis hole laminates regularity, and production efficiency is high, the spliced cast-aluminum dummy shaft of saving water resource.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of spliced cast-aluminum dummy shaft, including the cylindrical dummy shaft sheet formed by the first Tapered Column and the second Tapered Column nesting
Body, the first Tapered Column and the second Tapered Column include big end and small end respectively, and the big end of the first Tapered Column is cylindrical end, cylindrical end court
The upper of interior side connects support arm along connection position limit arm, lower edge, and the cross section of position limit arm is in circular arc, and the longitudinal section of support arm is in
Wedge shape, big end and the position limit arm of support arm are oppositely arranged, and the cavity surrounded between the big end of support arm and position limit arm is nested chamber,
The small end of second Tapered Column is provided with the nested end that matches with nested chamber, be additionally provided with bolt hole through the small end of the first Tapered Column and
The big end of second Tapered Column, bolt hole is interior to be provided with bolt.
The quantity of bolt hole has two, is set by axial symmetry of the longitudinal axis of dummy shaft body.
Bolt is hexagon socket head cap screw, and the head of bolt is identical with gauge diameter.
Fin is longitudinally provided with the inclined-plane of support arm, the inclined-plane of the second Tapered Column is provided with the groove to match with fin.
The radial thickness of position limit arm is less than or equal to the 1/4 of dummy shaft body diameter, and the longitudinal length of position limit arm is less than or equal to vacation
The 1/5 of shaft body length.
Compared with prior art, the beneficial effects of the present invention are：Bolt need to be only pulled down when moving back axle, then along inclined-plane by
Two Tapered Columns, which are pulled away from the first Tapered Column, can move back axle, simple in construction, easy to use, and be unlikely to deform, that axis hole laminates regularity is good,
Production efficiency is high, saving water resource.
Brief description of the drawings
Fig. 1 is the structural representation of the spliced cast-aluminum dummy shaft of the present invention；
Fig. 2 is the structural representation of the first Tapered Column；
Fig. 3 is the structural representation of the second Tapered Column.
In figure:The Tapered Columns of 1- first,
The Tapered Columns of 2- second,
3- cylindrical ends,
4- position limit arms,
5- support arms,
6- nestings end,
7- bolts,
8- fins,
9- grooves,
10- nesting chambers.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments, base
In embodiments of the invention, rather than whole embodiments, those of ordinary skill in the art are not before creative work is made
The every other embodiment obtained is put, belongs to protection scope of the present invention.
Figure is included with lower component：First Tapered Column 1, the second Tapered Column 2, cylindrical end 3, position limit arm 4, support arm 5, nesting
End 6, bolt 7, fin 8, groove 9 and nested chamber 10.
As shown in figure 1, a kind of spliced cast-aluminum dummy shaft, including be in by what the first Tapered Column and the second Tapered Column nesting formed
Columned dummy shaft body, the first Tapered Column and the second Tapered Column include big end and small end, the big end of the first Tapered Column respectively
Cylindrical end, the upper of side connects support arm to cylindrical end along connection position limit arm, lower edge inwardly, and the cross section of position limit arm is in circular arc,
The longitudinal section of support arm is wedge shaped, and big end and the position limit arm of support arm are oppositely arranged, and are enclosed between the big end of support arm and position limit arm
Into cavity be nested chamber, the small end of the second Tapered Column is provided with the nested end to match with nested chamber, is additionally provided with bolt hole and runs through
The big end of the small end of first Tapered Column and the second Tapered Column, bolt hole is interior to be provided with bolt.
The quantity of bolt hole has two, is set by axial symmetry of the longitudinal axis of dummy shaft body, two bolts, ensures accuracy.
Bolt is hexagon socket head cap screw, and the head of bolt is identical with gauge diameter, and bolt can take in dummy shaft body completely
It is interior, nest plate will not be hindered.
Fin is longitudinally provided with the inclined-plane of support arm, the inclined-plane of the second Tapered Column is provided with the groove to match with fin,
Fin and fit depressions, it is ensured that in splicing left and right displacement will not occur for the first Tapered Column and the second Tapered Column, ensure
The cross section for the dummy shaft body spelled is positive round.
The radial thickness of position limit arm is less than or equal to the 1/4 of dummy shaft body diameter, and the longitudinal length of position limit arm is less than or equal to vacation
The 1/5 of shaft body length, at position limit arm can not nest plate, so its longitudinal length is unsuitable long.
In use, by the use of the fin on support arm as being oriented to, the groove of the second Tapered Column is caught in fin, then along oblique
The nested end of the small end of second Tapered Column is pushed into the nested intracavitary of the first Tapered Column by face, now the small end of the first Tapered Column and
The bolt hole insertion at the big end of two Tapered Columns, bolt, which is screwed in bolt hole, can complete the assembly of dummy shaft body, then be covered
Piece laminates and cast aluminium, during dismounting, only need to screw off bolt, and the second Tapered Column then is pulled away from into the first Tapered Column along inclined-plane, torn open
Unload very convenient, and size is accurate.
Compared with prior art, the beneficial effects of the present invention are：Bolt need to be only pulled down when moving back axle, then along inclined-plane by
Two Tapered Columns, which are pulled away from the first Tapered Column, can move back axle, simple in construction, easy to use, and be unlikely to deform, that axis hole laminates regularity is good,
Production efficiency is high, saving water resource.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God and any modification made within principle, equivalent substitution improvement etc., should be included in the scope of the protection.
Claims (5)
- A kind of 1. spliced cast-aluminum dummy shaft, it is characterised in that：It is in including what is formed by the first Tapered Column and the second Tapered Column nesting Columned dummy shaft body, the first Tapered Column and the second Tapered Column include big end and small end, the big end of the first Tapered Column respectively Cylindrical end, the upper of side connects support arm to cylindrical end along connection position limit arm, lower edge inwardly, and the cross section of position limit arm is in circular arc, The longitudinal section of support arm is wedge shaped, and big end and the position limit arm of support arm are oppositely arranged, and are enclosed between the big end of support arm and position limit arm Into cavity be nested chamber, the small end of the second Tapered Column is provided with the nested end to match with nested chamber, is additionally provided with bolt hole and runs through The big end of the small end of first Tapered Column and the second Tapered Column, bolt hole is interior to be provided with bolt.
- 2. spliced cast-aluminum dummy shaft according to claim 1, it is characterised in that：The quantity of bolt hole has two, with dummy shaft The longitudinal axis of body is set for axial symmetry.
- 3. spliced cast-aluminum dummy shaft according to claim 1, it is characterised in that：Bolt is hexagon socket head cap screw, and bolt Head is identical with gauge diameter.
- 4. spliced cast-aluminum dummy shaft according to claim 1, it is characterised in that：Longitudinally it is provided with the inclined-plane of support arm convex Rib, the inclined-plane of the second Tapered Column are provided with the groove to match with fin.
- 5. spliced cast-aluminum dummy shaft according to claim 1, it is characterised in that：The radial thickness of position limit arm is less than or equal to vacation The 1/4 of shaft body diameter, the longitudinal length of position limit arm are less than or equal to the 1/5 of dummy shaft body length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710711986.7A CN107359752A (en) | 2017-08-18 | 2017-08-18 | A kind of spliced cast-aluminum dummy shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710711986.7A CN107359752A (en) | 2017-08-18 | 2017-08-18 | A kind of spliced cast-aluminum dummy shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107359752A true CN107359752A (en) | 2017-11-17 |
Family
ID=60287957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710711986.7A Pending CN107359752A (en) | 2017-08-18 | 2017-08-18 | A kind of spliced cast-aluminum dummy shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107359752A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007244029A (en) * | 2006-03-06 | 2007-09-20 | Jtekt Corp | Motor shaft and its manufacturing installation |
| CN102163884A (en) * | 2011-05-25 | 2011-08-24 | 上海金陵雷戈勃劳伊特电机有限公司 | Technological mandrel and method for manufacturing squirrel-cage rotor by using same |
| CN202309396U (en) * | 2011-07-18 | 2012-07-04 | 卧龙电气集团股份有限公司 | Split-type press-mounting device for iron core of motor |
| CN203911688U (en) * | 2014-06-20 | 2014-10-29 | 台州市海鹰机电有限公司 | Centrifugal cast-aluminum rotor support fast backward dummy shaft |
| CN203936346U (en) * | 2014-06-20 | 2014-11-12 | 台州市海鹰机电有限公司 | The split type rewind down dummy shaft of cast-aluminum rotor spun casting |
| CN207166320U (en) * | 2017-08-18 | 2018-03-30 | 无锡康柏斯机械科技有限公司 | A kind of cast-aluminum dummy shaft |
-
2017
- 2017-08-18 CN CN201710711986.7A patent/CN107359752A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007244029A (en) * | 2006-03-06 | 2007-09-20 | Jtekt Corp | Motor shaft and its manufacturing installation |
| CN102163884A (en) * | 2011-05-25 | 2011-08-24 | 上海金陵雷戈勃劳伊特电机有限公司 | Technological mandrel and method for manufacturing squirrel-cage rotor by using same |
| CN202309396U (en) * | 2011-07-18 | 2012-07-04 | 卧龙电气集团股份有限公司 | Split-type press-mounting device for iron core of motor |
| CN203911688U (en) * | 2014-06-20 | 2014-10-29 | 台州市海鹰机电有限公司 | Centrifugal cast-aluminum rotor support fast backward dummy shaft |
| CN203936346U (en) * | 2014-06-20 | 2014-11-12 | 台州市海鹰机电有限公司 | The split type rewind down dummy shaft of cast-aluminum rotor spun casting |
| CN207166320U (en) * | 2017-08-18 | 2018-03-30 | 无锡康柏斯机械科技有限公司 | A kind of cast-aluminum dummy shaft |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |
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| RJ01 | Rejection of invention patent application after publication |