CN108809005B - Direct-drive motor stator turning-over mandrel - Google Patents
Direct-drive motor stator turning-over mandrel Download PDFInfo
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- CN108809005B CN108809005B CN201810601949.5A CN201810601949A CN108809005B CN 108809005 B CN108809005 B CN 108809005B CN 201810601949 A CN201810601949 A CN 201810601949A CN 108809005 B CN108809005 B CN 108809005B
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- centre gripping
- dabber
- mandrel
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to the field of wind driven generator stators, in particular to a direct drive motor stator turnover mandrel, and aims to solve the technical problem that a direct drive motor with a part of flange interface plane not coinciding with a stator gravity center plane cannot be turned over by a turnover machine. The following technical scheme is adopted: two dabber units that set up by axial symmetry are assembled and are formed, the dabber unit is including all being annular flange and centre gripping flange, flange with the coaxial and axial dislocation set of centre gripping flange, the external diameter of centre gripping flange is less than flange's external diameter, and two dabber units's clamping flange meets, and the circumference equipartition has a plurality of radials between clamping flange and the flange, radials axial both ends are fixed respectively on flange and clamping flange, and the circumference equipartition has a plurality of mounting hole on the flange, and two dabber units's flange passes through the mounting hole is fixed respectively at the both ends face of stator. The stator overturning core shaft is mainly used as a stator overturning core shaft of a direct-drive wind driven generator.
Description
Technical Field
The invention relates to the field of wind driven generator stators, in particular to a direct-drive motor stator turnover mandrel.
Background
The stator of the permanent magnet direct-drive wind driven generator is generally an inner stator, and the permanent magnet direct-drive wind driven generator needs to be turned over for many times in the manufacturing and assembling process, and relates to the technical processes of stator core manufacturing, paint dipping, paint spraying and the like. The existing stator turning-over method mainly comprises the following two means: firstly, the manual turning-over device is used, the dummy shaft, the ground fixing support and the overhead crane are matched for operation, the danger degree is high, multiple persons are required for matching, and the workload is large; secondly, use the turnover machine to turn over, for example patent number 201010551072.7 the upset clamping device press from both sides tightly the flange interface department of stator and overturn, present turnover machine main upset object is the stator of flange interface plane and the coincidence of stator focus plane, and the upset is efficient, and factor of safety is high, and labour saving and time saving. Because the outer ring of the stator of the motor is uniformly wound with coils, the gravity center of the motor is concentrated at the middle position in the axial direction, the superposition of the flange interface plane and the stator center plane means that the flange interface is also positioned at the middle position and is superposed with the gravity center position, and the inner bulge is provided with a clamping part which can be matched with a clamping device of the turnover machine. However, in the existing permanent-magnet direct-drive wind driven generator, the flange interface plane of part of the motors is not coincident with the gravity center plane of the stator, namely the flange interface plane is not at the axial middle position, if a turnover machine is used for turning over, the stator is subjected to a large moment in the turnover process, the stator support is easily damaged, and the turnover fails, so that the motors are generally manually turned over by using a dummy shaft, and a series of problems of low efficiency, high labor cost, high danger and the like of the turning over of the motors are caused.
Disclosure of Invention
The invention aims to solve the technical problem that a direct drive motor with a part of flange interface planes not coincident with the gravity center plane of a stator cannot be overturned by a turnover machine. Therefore, the invention provides a direct-drive motor stator turning mandrel which can transition a flange interface to a gravity center position so as to be suitable for a turning machine.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a directly drive motor stator and stand up dabber, is assembled by two dabber units that axial symmetry set up and forms, and the structure of two dabber units is the same completely promptly, the dabber unit is including all being annular flange and centre gripping flange, flange with the coaxial and axial dislocation set of centre gripping flange, the external diameter of centre gripping flange is less than flange's external diameter, and two dabber units's centre gripping flange meets, and the circumference equipartition has a plurality of radials between centre gripping flange and the flange, radials axial both ends are fixed respectively on flange and centre gripping flange, and the circumference equipartition has a plurality of installation through-holes on the flange, and the flange of two dabber units passes through the both ends face at the stator is fixed respectively to the installation through-. The whole turnover mandrel consists of two mandrel units, and the two mandrel units are symmetrical about a plane where the two clamping flanges are connected. The outer diameter of the connecting flange is larger than the inner diameter of the stator and the outer diameter of the clamping flange is smaller than the inner diameter of the stator, as dimensional relationships are well known to those skilled in the art. During installation, the two axial ends of the radial plate are respectively fixed on the connecting flange and the clamping flange, so that two mandrel units are assembled, then the assembled mandrel units are respectively installed into a cylindrical structure of the stator from the two ends of the motor in the inward direction of the clamping flange, the clamping flanges of the two mandrel units are connected, and finally the connecting flange is fixed on the end face of the stator through the installation through hole. The connecting flange is fixed on the stator through the mounting through hole by adopting a means known in the mechanical field, and if the mounting through hole is a screw hole, the end surface of the stator is also provided with the screw hole, and the connecting flange and the stator are connected and fixed by using a bolt; or the end face of the stator is provided with a unthreaded hole, the mounting through hole is also provided with a unthreaded hole, and the connecting flange and the stator are fixed by locking the unthreaded holes by bolts after a screw or a stud penetrates through the two unthreaded holes. Two clamping flanges which are spliced mutually can be used as a new flange interface of the stator and positioned at the center of gravity in the middle of the axial direction, and then are connected with a clamping device of the turnover machine for turnover.
As an improvement of the above technical scheme, the connecting flange is further circumferentially and uniformly provided with connecting screw holes, the connecting screw holes are located on the radial outer side of the mounting through hole, a stud is arranged between the corresponding connecting screw holes of the two mandrel units in a penetrating manner, and locking nuts are screwed at two ends of the stud.
The invention has the beneficial effects that: the invention provides a direct-drive motor stator turnover mandrel which is formed by splicing two mandrel units which are symmetrically arranged, a connecting flange is fixed on the end surface of a stator, the whole turnover mandrel is arranged in a cylindrical structure of a motor stator, and a spliced clamping flange can be used as a new flange interface, so that an eccentric flange interface is transited to the center of gravity position in the middle of the axial direction, the stator can be turned over by means of a turnover machine, the working efficiency is improved, and the stator cannot be damaged.
Drawings
FIG. 1 is a schematic perspective view of the turn-over mandrel of the present invention;
FIG. 2 is a schematic view of the assembly structure of the turning-over mandrel and the motor of the present invention;
FIG. 3 is a schematic view of the construction of the attachment flange of the present invention;
FIG. 4 is a schematic structural view of the web of the present invention;
fig. 5 is a schematic view of the structure of the clamping flange of the present invention.
Detailed Description
Referring to fig. 1-5, the direct-drive motor stator turnover mandrel is formed by assembling two mandrel units which are axially symmetrically arranged, namely the two mandrel units have the same structure, each mandrel unit comprises a connecting flange 1 and a clamping flange 2 which are both annular, the connecting flange 1 and the clamping flange 2 are coaxially and axially arranged in a staggered manner, the outer diameter of the clamping flange 2 is smaller than the outer diameter of the connecting flange 1, the clamping flanges 2 of the two mandrel units are connected, a plurality of radial plates 3 are circumferentially and uniformly distributed between the clamping flanges 2 and the connecting flanges 1, two axial ends of each radial plate 3 are respectively fixed on the connecting flange 1 and the clamping flange 2, a plurality of mounting through holes 4 are circumferentially and uniformly distributed on the connecting flange 1, and the connecting flanges 1 of the two mandrel units are respectively fixed on two end faces of a stator 5 through the mounting through holes 4. The whole turnover mandrel consists of two mandrel units, and the two mandrel units are symmetrical about the plane where the two clamping flanges 2 are connected. The outer diameter of the connecting flange 1 is larger than the inner diameter of the stator 5 and the outer diameter of the clamping flange 2 is smaller than the inner diameter of the stator 5, as dimensional relationships are well known to the person skilled in the art. During installation, the two axial ends of the radial plate 3 are respectively fixed on the connecting flange 1 and the clamping flange 2, so that two mandrel units are assembled, then the assembled mandrel units are respectively installed into a cylindrical structure of the stator 5 from the two ends of the motor in the inward direction of the clamping flange 2, the clamping flanges 2 of the two mandrel units are connected, and finally the connecting flange 1 is fixed on the end face of the stator 5 through the installation through hole 4. The connecting flange 1 is fixed on the stator through the mounting through hole 4 by adopting a means known in the mechanical field, for example, the mounting through hole 4 is a screw hole, the end surface of the stator 5 is also provided with the screw hole, and the two are connected and fixed by using a bolt; or, the end face of the stator 5 is provided with a unthreaded hole, the mounting through hole 4 is also provided with a unthreaded hole, and the connecting flange 1 and the stator 5 are fixed by using bolts after a screw or a stud penetrates through the two unthreaded holes. For a clearer understanding of the structure and function of the turning mandrel of the present invention, the process by which the stator 5 is turned is described in detail below: firstly, preparation work is carried out, a crane, a stator 5 provided with a turning core shaft, a turning machine which is supported in the air and can rotate and a supporting base which is arranged on the ground are needed; then, the stator 5 is hoisted by a crane, a clamping device of the tilter is controlled to be clamped on the clamping flange 2, the connection between the tilter and the stator 5 is realized, and the stator is positioned above the tilter; the upset machine of control is rotatory, makes the upset machine rotate 180 around the horizontal axis to make the stator 5 upset 180 that links to each other with the upset machine, make stator 5 be located the below of upset machine, at this moment, the up end that stator 5 originally is located the lower extreme, and the up end that originally is located the below, thereby accomplished 180 upsets of stator 5.
As a further improvement of the above technical scheme, the connecting flange 1 is further circumferentially and uniformly provided with connecting screw holes 6, the connecting screw holes 6 are located at the radial outer side of the mounting through hole 4, a stud 7 is arranged between the corresponding connecting screw holes 6 of the two mandrels in a penetrating manner, and locking nuts 8 are screwed at two ends of the stud 7. Two dabber units link together through stud 7, are convenient for lay when not using, and more importantly when using, accessible stud 7 compresses tightly two flange 1 on stator 5, makes upset dabber and stator 5 closely combine into an organic whole, has further improved the fastness of being connected of upset dabber and stator 5.
As a preferable connection mode of the wheel disc 3, two axial ends of the wheel disc 3 are respectively welded on the end faces of the connecting flange 1 and the clamping flange 2, and the connection mode is more reliable.
As a preferred structure of radials 3, radials 3 are the partial lateral wall between two generating lines of round platform shape thin wall structure, the less arc limit of 3 arc lengths of radials welds with clamping flange 2, the great arc limit of arc lengths welds with flange 1, because clamping flange 2 is littleer than flange 1's size, the radials 3 of structure like this can reduce the partial stress that causes the upset dabber when overturning for clamping flange 2 and flange 1 are connected more firmly.
For making centre gripping flange 2 welding more firm, an end face of centre gripping flange 2 corresponds radials 3 is provided with convex part 9, radials 3 weld in on the convex part 9. A dead zone is formed between the convex parts 9 of the clamping flange 2, a movement space is provided for a hydraulic block of a clamping device of the turnover machine, and the structure is more reasonable.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a directly drive motor stator and stand up dabber which characterized in that: two dabber units that set up by axial symmetry are assembled and are formed, the dabber unit is including all being annular flange (1) and centre gripping flange (2), flange (1) with the coaxial and axial dislocation set of centre gripping flange (2), the external diameter of centre gripping flange (2) is less than the external diameter of flange (1), and the centre gripping flange (2) of two dabber units meet, and the external diameter of flange (1) is greater than the internal diameter of stator (5), and the external diameter of centre gripping flange (2) is less than the internal diameter of stator (5), and the circumference equipartition has a plurality of radials (3) between centre gripping flange (2) and flange (1), radials (3) axial both ends are fixed respectively on flange (1) and centre gripping flange (2), pack into the dabber unit with centre gripping flange (2) direction inwards in the cylindrical structure of stator (5) from the both ends of motor respectively, a plurality of mounting through holes (4) are uniformly distributed in the circumferential direction on the connecting flange (1), and the connecting flanges (1) of the two mandrel units are respectively fixed on two end faces of the stator (5) through the mounting through holes (4).
2. The direct drive motor stator turnover mandrel as claimed in claim 1, wherein: connecting flange (1) is still circumference equipartition has connection screw (6), connection screw (6) are located the radial outside of mounting hole (4), wear to be equipped with a stud (7) between connection screw (6) of the correspondence of two dabber units, stud (7) both ends are twisted and are had lock nut (8).
3. The direct drive motor stator turnover mandrel as claimed in claim 1 or 2, wherein: the two axial ends of the radial plate (3) are respectively welded on the end faces of the connecting flange (1) and the clamping flange (2).
4. The direct drive motor stator turnover mandrel as claimed in claim 3, wherein: the wheel disk (3) is a partial side wall between two buses of a circular truncated cone-shaped thin-wall structure, the arc edge with the smaller arc length of the wheel disk (3) is welded with the clamping flange (2), and the arc edge with the larger arc length is welded with the connecting flange (1).
5. The direct drive motor stator turnover mandrel as claimed in claim 4, wherein: an end face of centre gripping flange (2) corresponds radials (3) are provided with convex part (9), radials (3) weld in on convex part (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810601949.5A CN108809005B (en) | 2018-06-12 | 2018-06-12 | Direct-drive motor stator turning-over mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810601949.5A CN108809005B (en) | 2018-06-12 | 2018-06-12 | Direct-drive motor stator turning-over mandrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108809005A CN108809005A (en) | 2018-11-13 |
| CN108809005B true CN108809005B (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810601949.5A Active CN108809005B (en) | 2018-06-12 | 2018-06-12 | Direct-drive motor stator turning-over mandrel |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7272317B2 (en) * | 2020-05-15 | 2023-05-12 | トヨタ自動車株式会社 | Stator core support device and stator core support method |
| CN112096749A (en) * | 2020-08-31 | 2020-12-18 | 江苏中车电机有限公司 | Double-flange anti-deformation structure and method |
| CN115351563A (en) * | 2022-07-26 | 2022-11-18 | 中国航发航空科技股份有限公司 | Clamp for milling blisk |
| CN117748865B (en) * | 2023-11-28 | 2024-12-13 | 江苏中车电机有限公司 | A universal connection device for motor stator varnish dipping and use method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6397594A (en) * | 1986-10-14 | 1988-04-28 | イ−グルクランプ株式会社 | Inside-diameter hanger for cylindrical body |
| CN201345585Y (en) * | 2008-12-15 | 2009-11-11 | 宁夏三一西北骏马电机制造股份有限公司 | Large electric motor stator body turnover tyre |
| CN103051121B (en) * | 2012-12-13 | 2015-07-08 | 武汉利德工业技术服务有限公司 | Device for dip coating and baking motor stator |
| CN203774986U (en) * | 2013-04-23 | 2014-08-13 | 大连德新机电技术工程有限公司 | Workpiece turnover device for reshaping and binding of front and rear ends of wound core |
| CN204057648U (en) * | 2014-09-12 | 2014-12-31 | 江苏南车电机有限公司 | A kind of large directly driven permanent magnet wind generating stator stands up and handling mandrel |
| CN204578307U (en) * | 2015-03-09 | 2015-08-19 | 江西师范大学 | Device for overturning generator stator |
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