CN115425809A - Motor stator hot jacket base positioning method - Google Patents
Motor stator hot jacket base positioning method Download PDFInfo
- Publication number
- CN115425809A CN115425809A CN202210926963.9A CN202210926963A CN115425809A CN 115425809 A CN115425809 A CN 115425809A CN 202210926963 A CN202210926963 A CN 202210926963A CN 115425809 A CN115425809 A CN 115425809A
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- China
- Prior art keywords
- stator
- guide groove
- guide
- base
- guide block
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- 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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- 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
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
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- 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
- H02K15/14—Casings; Enclosures; Supports
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a method for positioning a motor stator hot jacket base, which relates to a method for installing a stator base, and comprises the following steps: determining the mounting positions of the stator and the base according to the cable access position; and B, step B: arranging guide groove groups in the base according to the installation position of the stator, wherein each guide groove group comprises at least one guide groove; step C: a guide block matched with the guide groove in position is welded on the stator pressing ring, and the guide block can be clamped into the guide groove at normal temperature; step D: after the heating of the heating furnace is finished, the base is lifted to an installation station, then the stator is lifted to be right above the base, then the stator is slowly put down to enable the top of the stator to be parallel to the base, and the stator is installed according to the positions of the guide groove and the guide block; and E, step E: and naturally cooling to room temperature after the thermal sleeve is installed. Compared with the prior art, the requirement that the accurate suit of stator is in the frame can be realized under the prerequisite that does not influence generating set work in the future to this application, helps improving generator suit precision and installation effectiveness.
Description
Technical Field
The invention relates to a method for installing a stator frame, in particular to a method for installing a stator shrink fit frame.
Background
The hot jacket assembly is a common assembly mode of a large-scale generator set, and the hot jacket assembly is that a containing part is cooled after being heated and expanded by utilizing a hot-charging and cold-shrinking principle, and then the containing part shrinks to wrap the contained part. The hot jacket assembly needs to be completed at a higher temperature, so that the jacket temperature is higher than the working temperature, and the mode ensures that the installation has a sufficient interference value and high reliability. At present, the stator of a large generator set is mostly installed in a hot sleeve assembling mode. During the installation, need hoist and mount the stator, heat the stator base afterwards and hang the stator into the base, the suit location is all carried out by field personnel eyeballing to present stator shrink fit frame, has the angular deviation problem when colliding with and the suit easily, in case the deviation later stage is very difficult revising again. For the wind generating set, the space in the shell is extremely narrow and small, the stator and the base are required to be accurately centered, the wiring copper bar on the stator is ensured to be positioned in the later-stage installation space, and the requirement of leading out the wiring copper plate at a fixed angle is met. And the reality is that the deviation will always appear in the angle of wiring copper bar, causes the puzzlement for the later stage installation.
Disclosure of Invention
The invention provides a motor stator hot jacket base positioning method aiming at the defects in the prior art, and the method can meet the requirement of accurate sleeving of a stator in a base on the premise of not influencing the work of a generator set in the future, and is beneficial to improving the sleeving precision and the installation efficiency of a generator.
In order to solve the technical problems, the invention solves the technical problems by the following technical scheme, and the positioning method of the motor stator hot jacket base comprises the following steps: step A: and determining the facing direction of the wiring copper bars on the end ring of the stator according to the cable access position so as to determine the mounting position of the stator and the machine base. And B: at least one group of guide slot groups is arranged in the base according to the installation position of the stator, and each group of guide slot groups comprises at least one guide slot; step C: a guide block matched with the guide groove in position is welded on the stator pressing ring, and the guide block can be clamped into the guide groove at normal temperature; the base is hoisted to an installation station after the heating of the heating furnace is finished, then the stator is hoisted to be right above the base, then the stator is slowly put down to enable the top of the stator to be parallel to the base, if the guide block is matched with the guide groove at the moment, the stator is continuously and slowly put down until the spigot of the stator pressing ring is contacted with the spigot of the base; if the guide block is not matched with the guide groove at the moment, slowly rotating the stator until the guide block is matched with the guide groove, and finally slowly putting down the stator until the stator pressing ring spigot is contacted with the base spigot; and E, step E: and naturally cooling to room temperature after the thermal sleeve is installed.
In the above technical method, preferably, in step B, the guide groove set is installed on an inner flange or an inner ring rib of the machine base.
In the above technical method, preferably, if the guide slot groups are installed on the inner ring rib, two groups of guide slot groups are arranged in an up-down symmetry manner, each group of guide slot group includes at least two guide slots, the guide slots in each group of guide slot group are uniformly distributed along the circumferential direction, and the guide slots are arranged at the upper end and the lower end of the vertical rib in the inner ring rib.
In the above technical method, preferably, if the guide slot group is installed on the flange, only one guide slot group is provided, and only one guide slot is provided in the guide slot group, and the guide block matched with the guide slot is in a strip shape, and the length of the guide block reaches at least one third of the height of the machine base.
In the above technical method, preferably, the guide block is one of square, trapezoid, oval or arc, the shape of the guide groove is matched with that of the guide block, and no gap is formed after the guide block and the guide groove are clamped at normal temperature.
The method has the difficulty that the guide groove and the guide groove group are arranged. Because the stator and the base are installed in a hot sleeve mode, the stator and the base are tightly attached after being installed, if the guide groove is not formed in a specific position, a gap can be formed between the stator and the base after the generator set runs for a period of time, and when the stator and the base are not tightly attached, the problems of looseness, base vibration and the like can be caused. Therefore, the guide groove is mainly formed on the machine base flange and the inner ring rib of the machine base in the application. Essentially only one guide groove is provided in the machine base flange. Because the flange is positioned at the outermost side of the machine base, only one guide groove is arranged, the sealing between the machine base and the stator cannot be influenced, and the function of the flange cannot be influenced. If the guide grooves are formed in the inner annular rib of the machine base, the guide grooves must be uniformly distributed in the circumferential direction, and further, two groups of guide grooves are required to be arranged in a vertically symmetrical mode, and the vertically symmetrical guide grooves must be located at the upper end and the lower end of the vertical rib in the inner annular rib. The arrangement does not occupy other spaces in the base, ensures the fixation of the stator and the base, and the guide groove is one of the positions of the base for fixing the stator. The guide groove is placed at the upper end and the lower end of the vertical rib, so that the support effect on the guide groove is achieved, and the problem that after long-time operation, the guide groove is abraded to cause a gap to appear between the guide groove and the stator is solved. The upper and lower two layers of guide groove groups can play a supporting role higher. The invention can be used for guiding the motor stator hot sleeve machine base and can also be applied to other application occasions with the requirement on the sleeve precision in other fields.
Compared with the prior art, the requirement that the accurate suit of stator is in the frame can be realized under the prerequisite that does not influence generating set work in the future to this application, helps improving generator suit precision and installation effectiveness.
Drawings
Fig. 1 is a schematic view of a stator of the present invention.
Fig. 2 is a schematic view of a guide groove on an inner ring rib of the engine base.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without the need for inventive step, are within the scope of the present invention.
Example 1: a positioning method of a motor stator shrink fit machine base comprises the following steps: step A: and determining the facing direction of the wiring copper bars on the end ring of the stator according to the cable access position so as to determine the mounting position of the stator and the machine base. And B: a guide groove group is arranged on an inner flange of the machine base, and only one guide groove is arranged in the guide groove group. And C: the stator pressing ring is welded with a guide block matched with the position of the guide groove, the guide block matched with the guide groove is in a strip shape, the length of the guide block at least reaches one third of the height of the machine base, and the guide block can be clamped into the guide groove at normal temperature. Step D: hoisting the stator to be right above the base, uniformly heating the base through a heater, slowly putting down the stator after heating to the temperature of the hot jacket to enable the top of the stator to be parallel to the base, and if the guide block is matched with the guide groove at the moment, continuously and slowly putting down the stator until the spigot of the stator pressing ring is contacted with the spigot of the base; and if the guide block is not matched with the guide groove at the moment, slowly rotating the stator until the guide block is matched with the guide groove, and finally slowly putting down the stator until the stator pressing ring spigot is contacted with the machine base spigot. Step E: and naturally cooling to room temperature after the thermal sleeve is installed. The guide block is square, trapezoidal, oval or arc-shaped, the shape of the guide groove is matched with that of the guide block, and no gap exists after the guide block and the guide groove are clamped at normal temperature.
Embodiment 2, as shown in fig. 1 and 2, a method for positioning a shrink fit housing of a stator of an electric machine includes the following steps: step A: and determining the facing direction of the wiring copper bar on the stator end ring according to the cable access position, thereby determining the mounting position of the stator and the machine base. And B: the guide groove groups are arranged on the inner ring ribs in the machine base, two groups of guide groove groups which are symmetrical up and down are arranged, each group of guide groove groups comprises at least two guide grooves, the guide grooves in each group of guide groove groups are uniformly distributed along the circumferential direction, and the guide grooves are arranged at the upper ends and the lower ends of the vertical ribs in the inner ring ribs. And C: and a guide block matched with the guide groove in position is welded on the stator pressing ring, and the guide block can be clamped into the guide groove at normal temperature. Step D: hoisting the stator to be right above the machine base, then uniformly heating the machine base through a heater, slowly putting down the stator after heating to the temperature of the heat sleeve until the spigot of the stator pressing ring is contacted with the spigot of the machine base, and if the guide block is matched with the guide groove in position, continuously slowly putting down the stator until the stator is contacted with the bottom; if the guide block is not matched with the guide groove at the moment, slowly rotating the stator until the guide block is matched with the guide groove, and finally slowly putting down the stator until the stator is bottomed. And E, step E: and naturally cooling to room temperature after the thermal sleeve is installed. The guide block is square, trapezoidal, oval or arc-shaped, the shape of the guide groove is matched with that of the guide block, and no gap exists after the guide block and the guide groove are clamped at normal temperature.
Claims (5)
1. A motor stator shrink fit machine base positioning method is characterized by comprising the following steps:
step A: determining the facing direction of a wiring copper bar on the end ring of the stator according to the cable access position so as to determine the mounting position of the stator and the machine base;
and B, step B: at least one group of guide groove groups is arranged in the base according to the installation position of the stator, and each group of guide groove groups comprises at least one guide groove;
and C: a guide block matched with the guide groove in position is welded on the stator pressing ring, and the guide block can be clamped into the guide groove at normal temperature;
step D: the base is hoisted to an installation station after the heating of the heating furnace is finished, then the stator is hoisted to be right above the base, then the stator is slowly put down to enable the top of the stator to be parallel to the base, and if the guide block is matched with the guide groove at the moment, the stator is continuously and slowly put down until the spigot of the stator pressing ring is contacted with the spigot of the base; if the guide block is not matched with the guide groove at the moment, slowly rotating the stator until the guide block is matched with the guide groove, and finally slowly putting down the stator until the stator pressing ring spigot is contacted with the base spigot;
step E: and naturally cooling to room temperature after the thermal sleeve is installed.
2. The method as claimed in claim 1, wherein the guide slot set is installed on an inner flange or an inner ring rib of the frame in step B.
3. The method as claimed in claim 2, wherein if the guide groove sets are installed on the inner ring rib, two guide groove sets are provided, wherein each guide groove set comprises at least two guide grooves, the guide grooves in each guide groove set are uniformly distributed along the circumferential direction, and the guide grooves are provided at the upper and lower ends of the vertical rib in the inner ring rib.
4. The method as claimed in claim 2, wherein if the guide groove set is installed on the flange, only one guide groove set is provided, and only one guide groove is provided in the guide groove set, and the guide block associated with the guide groove is formed in a long strip shape.
5. The method as claimed in any one of claims 1 to 4, wherein the guide block is one of square, trapezoid, oval or arc, the shape of the guide slot is matched with the guide block, and no gap is formed after the guide block is engaged with the guide slot at normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210926963.9A CN115425809B (en) | 2022-08-03 | 2022-08-03 | Positioning method for motor stator hot sleeve machine base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210926963.9A CN115425809B (en) | 2022-08-03 | 2022-08-03 | Positioning method for motor stator hot sleeve machine base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115425809A true CN115425809A (en) | 2022-12-02 |
| CN115425809B CN115425809B (en) | 2023-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210926963.9A Active CN115425809B (en) | 2022-08-03 | 2022-08-03 | Positioning method for motor stator hot sleeve machine base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115425809B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB988568A (en) * | 1960-09-19 | 1965-04-07 | Lucas Industries Ltd | Apparatus for manufacturing stators for dynamo-electric machines |
| DE102006033179A1 (en) * | 2006-07-18 | 2008-01-24 | Robert Bosch Gmbh | Electrical machine i.e. three-phase alternator, for motor vehicle, has rotor arranged in housing, and stator fastened radially to housing shell through press-fit, where stator is brought into defined end position by using axial stop |
| CN201332336Y (en) * | 2008-12-25 | 2009-10-21 | 上海南洋电机有限公司 | Positing module for shrinkage fitting of stator iron core of motor |
| CN204669173U (en) * | 2015-03-13 | 2015-09-23 | 苏州力久新能源科技有限公司 | Be applicable to the guide locating device provided of stator and casing hot jacket |
| CN109450188A (en) * | 2018-12-10 | 2019-03-08 | 江苏亚力防爆电机有限公司 | A kind of hot-mounting process of motor stator core |
| CN211490423U (en) * | 2019-12-30 | 2020-09-15 | 苏州绿控传动科技股份有限公司 | Hot jacket frock to stator of taking long key and casing pressure equipment of taking keyway |
| CN113572320A (en) * | 2021-08-17 | 2021-10-29 | 重庆水轮机厂有限责任公司 | Stator winding hot sleeving method |
-
2022
- 2022-08-03 CN CN202210926963.9A patent/CN115425809B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB988568A (en) * | 1960-09-19 | 1965-04-07 | Lucas Industries Ltd | Apparatus for manufacturing stators for dynamo-electric machines |
| DE102006033179A1 (en) * | 2006-07-18 | 2008-01-24 | Robert Bosch Gmbh | Electrical machine i.e. three-phase alternator, for motor vehicle, has rotor arranged in housing, and stator fastened radially to housing shell through press-fit, where stator is brought into defined end position by using axial stop |
| CN201332336Y (en) * | 2008-12-25 | 2009-10-21 | 上海南洋电机有限公司 | Positing module for shrinkage fitting of stator iron core of motor |
| CN204669173U (en) * | 2015-03-13 | 2015-09-23 | 苏州力久新能源科技有限公司 | Be applicable to the guide locating device provided of stator and casing hot jacket |
| CN109450188A (en) * | 2018-12-10 | 2019-03-08 | 江苏亚力防爆电机有限公司 | A kind of hot-mounting process of motor stator core |
| CN211490423U (en) * | 2019-12-30 | 2020-09-15 | 苏州绿控传动科技股份有限公司 | Hot jacket frock to stator of taking long key and casing pressure equipment of taking keyway |
| CN113572320A (en) * | 2021-08-17 | 2021-10-29 | 重庆水轮机厂有限责任公司 | Stator winding hot sleeving method |
Non-Patent Citations (1)
| Title |
|---|
| 王辰佳: "水套冷异步风力发电机定子加工工艺的分析与研究", 上海大中型电机, no. 02 * |
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| Publication number | Publication date |
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| CN115425809B (en) | 2023-08-08 |
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