CN115425809B - Positioning method for motor stator hot sleeve machine base - Google Patents
Positioning method for motor stator hot sleeve machine base Download PDFInfo
- Publication number
- CN115425809B CN115425809B CN202210926963.9A CN202210926963A CN115425809B CN 115425809 B CN115425809 B CN 115425809B CN 202210926963 A CN202210926963 A CN 202210926963A CN 115425809 B CN115425809 B CN 115425809B
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- China
- Prior art keywords
- stator
- guide groove
- machine base
- guide
- guide block
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Classifications
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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
-
- 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
-
- 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 positioning method of a motor stator hot sleeve machine base, and relates to a stator machine base installation method, which comprises the following steps: determining the mounting positions of the stator and the stand according to the cable access positions; and (B) step (B): a guide groove group is arranged in the machine base according to the mounting position of the stator, and 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 furnace is heated, the machine base is lifted to a mounting station, then the stator is lifted to the position right above the machine base, then the stator is slowly placed down to enable the top of the stator to be parallel to the base, and the machine base is mounted according to the positions of the guide grooves and the guide blocks; step E: and naturally cooling to room temperature after the hot jacket is installed. Compared with the prior art, the stator assembly assembling method has the advantages that the stator assembly assembling method can meet the requirement of accurately assembling the stator in the machine base on the premise that the working of the generator set in the future is not affected, and the assembling precision and the assembling efficiency of the generator are improved.
Description
Technical Field
The invention relates to a stator frame installation method, in particular to a stator hot jacket frame installation method.
Background
The hot jacket assembly is a common assembly mode of a large-sized generator set, and is characterized in that the container is heated and expanded by utilizing the principle of hot charging and cold shrinking and then cooled, and then the container is contracted and wrapped by the container. The hot sleeve assembly needs to be completed at a higher temperature, so that the sleeve assembly temperature is higher than the working temperature, and the mode ensures that the sleeve assembly has enough interference value during installation and has high reliability. At present, a large-scale generator set stator is mostly installed in a hot sleeve assembly mode. During installation, the stator is required to be hoisted, then the stator base is heated to hoist the stator into the base, and at present, the stator hot jacket base is sleeved and positioned by visual inspection of field personnel, so that the problems of easy collision and angle deviation during sleeving exist, and the stator hot jacket base is difficult to correct once the deviation occurs in the later stage. For the wind generating set, the space in the shell is extremely narrow, the stator and the base are required to be accurately centered, the wiring copper bar on the stator is ensured to be in the later installation space, and the wiring copper plate is led out at a fixed angle. The angle of wiring copper bar always deviates, which causes trouble for later installation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a positioning method of a motor stator hot sleeve machine base, which can realize the requirement that a stator is accurately sleeved in the machine base on the premise of not influencing the working of a generator set in the future, and is beneficial to improving the sleeving precision and the mounting efficiency of the generator.
In order to solve the technical problems, the invention solves the technical problems by the following technical scheme that the motor stator hot jacket base positioning method comprises 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 installation position of the stator and the engine base. And (B) step (B): at least one group of guide groove groups are arranged in the machine base according to the mounting position of the stator, and 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; after the heating furnace is heated, the machine base is lifted to a mounting station, then the stator is lifted to the position right above the machine 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 in position at the moment, the stator is continuously slowly put down until the spigot of the stator pressing ring is contacted with the spigot of the machine base; if the positions of the guide block and the guide groove are not matched, slowly rotating the stator until the positions of the guide block and the guide groove are matched, and finally, slowly putting down the stator until the spigot of the stator pressing ring is contacted with the spigot of the machine base; step E: and naturally cooling to room temperature after the hot jacket is installed.
In the above technical method, preferably, in the step B, the guide groove group is mounted on an inner flange or an inner ring rib of the stand.
In the above technical method, preferably, if the guide groove groups are mounted on the inner ring rib, two guide groove groups which are vertically symmetrical are provided, each guide groove group comprises at least two guide grooves, the guide grooves in each guide groove group are uniformly distributed along the circumferential direction, and the guide grooves 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 groove group is mounted on the flange, only one guide groove group is provided, and only one guide groove is provided in the guide groove group, and the guide block matched with the guide groove is in a strip shape, and the length of the guide block is at least one third of the height of the base.
In the above technical method, preferably, the guide block is one of square, trapezoid, waist-round or arc, the shape of the guide groove is matched with the guide block, and no gap exists after the guide block is clamped with the guide groove at normal temperature.
The difficulty of the method is that the guide groove and the opening position of the guide groove group. Because the stator and the machine base are in hot sleeve installation, the stator and the machine base are tightly attached after being installed, if a guide groove is not formed in a specific position, gaps can possibly appear between the stator and the machine base after the generator set operates for a period of time, and when the stator and the machine base are not tightly attached, the problems of loosening, vibration of the machine base and the like can occur. Therefore, the guide groove is mainly formed on the flange of the machine base and the inner ring rib of the machine base in the application. Basically, only one guide groove is formed on the flange of the base. Because the flange is positioned at the outermost side of the machine base, only one guide groove is formed, so that the sealing between the machine base and the stator is not influenced, and the function of the flange is not influenced. If the guide grooves are arranged on the inner annular rib of the machine base, the guide grooves must be uniformly distributed circumferentially, two groups of guide groove groups are further required to be arranged, the guide grooves are vertically symmetrical, and the guide grooves which are vertically symmetrical must be positioned at the upper end and the lower end of the vertical rib in the inner annular rib. The arrangement not only does not occupy other space in the machine base and ensures the fixation of the stator and the machine base, but also the guide groove is one of the positions of the machine base for fixing the stator. The guide grooves are placed at the upper end and the lower end of the vertical rib to play a supporting role on the guide grooves, so that the problem that gaps are formed between the positions of the guide grooves and the stator due to abrasion of the guide grooves after long-time operation is avoided. The guide groove groups on the upper layer and the lower layer can play a higher role in supporting. The invention can be used for guiding the motor stator hot sleeve base and can also be applied to other application occasions with the requirement of sleeving precision in other fields.
Compared with the prior art, the stator assembly assembling method has the advantages that the stator assembly assembling method can meet the requirement of accurately assembling the stator in the machine base on the premise that the working of the generator set in the future is not affected, and the assembling precision and the assembling efficiency of the generator are improved.
Drawings
Fig. 1 is a schematic view of a stator according to the present invention.
FIG. 2 is a schematic view of the guide groove on the inner ring rib of the engine base.
Detailed Description
The following description of the embodiments of the present invention will be made in detail and with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the present invention. All other embodiments, which can be made by a person of ordinary skill in the art without the need for inventive faculty, are within the scope of the invention, based on the embodiments described in the present invention.
Example 1: a motor stator hot jacket base positioning method comprises 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 installation position of the stator and the engine base. And (B) step (B): a guide groove group is arranged on the flange in the machine base, and only one guide groove is arranged in the guide groove group. Step C: the stator pressing ring is welded with a guide block matched with the guide groove in position, the guide block matched with the guide groove is long-strip-shaped, the length of the guide block at least reaches one third of the height of the machine seat, and the guide block can be clamped into the guide groove at normal temperature. Step D: lifting the stator to the position 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 hot jacket to enable the top of the stator to be parallel to the base, and continuously and slowly putting down the stator until the spigot of the stator pressing ring is contacted with the spigot of the machine base if the guide block is matched with the guide groove in position at the moment; if the guide block is not matched with the guide groove, slowly rotating the stator until the guide block is matched with the guide groove, and finally slowly putting down the stator until the spigot of the stator pressing ring is contacted with the spigot of the machine base. Step E: and naturally cooling to room temperature after the hot jacket is installed. The guide block is square, trapezoid, waist round or arc, the shape of the guide groove is matched with the guide block, and no gap exists between the guide block and the guide groove after the guide block is clamped at normal temperature.
Embodiment 2, as shown in fig. 1 and 2, is a positioning method of a motor stator thermal sleeve base, comprising 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 installation position of the stator and the engine base. And (B) step (B): the guide groove groups are arranged on the inner ring rib in the machine base, two groups of guide groove groups which are vertically symmetrical are arranged, each guide groove group comprises at least two guide grooves, the guide grooves in each guide groove group are uniformly distributed along the circumferential direction, and the guide grooves are arranged at the upper end and the lower end of the vertical rib in the inner ring rib. Step C: the stator pressing ring is welded with a guide block matched with the guide groove in position, and the guide block can be clamped into the guide groove at normal temperature. Step D: lifting the stator to the position right above the machine base, uniformly heating the machine base through a heater, slowly placing the stator until the spigot of the stator pressing ring contacts with the spigot of the machine base after the temperature of the hot jacket is reached, and continuously and slowly placing the stator until the stator bottoms out if the guide block is matched with the guide groove at the moment; if the guide block is not matched with the guide groove, slowly rotating the stator until the guide block is matched with the guide groove, and finally slowly putting down the stator until the stator bottoms out. Step E: and naturally cooling to room temperature after the hot jacket is installed. The guide block is square, trapezoid, waist round or arc, the shape of the guide groove is matched with the guide block, and no gap exists between the guide block and the guide groove after the guide block is clamped at normal temperature.
Claims (1)
1. The positioning method of the motor stator hot jacket machine seat is characterized by comprising the following steps:
step A: determining the facing direction of a 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) step (B): at least one group of guide groove groups are arranged in the machine base according to the mounting position of the stator, each guide groove group comprises at least one guide groove, and the guide groove groups are mounted on the flange or the inner ring rib in the machine base;
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 furnace is heated, the machine base is lifted to a mounting station, then the stator is lifted to the position right above the machine base, then the stator is slowly put down to enable the top of the stator to be parallel to the machine base, and if the guide block is matched with the guide groove in position at the moment, the stator is continuously slowly put down until the spigot of the stator pressing ring is contacted with the spigot of the machine base; if the positions of the guide block and the guide groove are not matched, slowly rotating the stator until the positions of the guide block and the guide groove are matched, and finally, slowly putting down the stator until the spigot of the stator pressing ring is contacted with the spigot of the machine base;
step E: naturally cooling to room temperature after the hot jacket is installed;
if the guide groove groups are arranged on the inner ring rib, two guide groove groups which are aligned up and down are arranged, each guide groove group comprises at least two guide grooves, the guide grooves in each guide groove group are uniformly distributed along the circumferential direction, and the guide grooves are arranged at the upper end and the lower end of the vertical rib in the inner ring rib;
if the guide groove group is arranged on the flange, only one guide groove group is arranged, and only one guide groove is arranged in the guide groove group, and a guide block matched with the guide groove is in a strip shape;
the guide block is square, trapezoid, waist round or arc, the shape of the guide groove is matched with the guide block, and no gap exists between the guide block and the guide groove after the guide block is clamped 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 CN115425809A (en) | 2022-12-02 |
| CN115425809B true CN115425809B (en) | 2023-08-08 |
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ID=84195862
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| 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 |
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| 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 |
|---|
| 水套冷异步风力发电机定子加工工艺的分析与研究;王辰佳;上海大中型电机(第02期);全文 * |
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| CN115425809A (en) | 2022-12-02 |
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