CN111969810A - Assembling tool and mounting method for stator assembly and permanent magnet rotor assembly of permanent magnet motor - Google Patents
Assembling tool and mounting method for stator assembly and permanent magnet rotor assembly of permanent magnet motor Download PDFInfo
- Publication number
- CN111969810A CN111969810A CN202010773244.9A CN202010773244A CN111969810A CN 111969810 A CN111969810 A CN 111969810A CN 202010773244 A CN202010773244 A CN 202010773244A CN 111969810 A CN111969810 A CN 111969810A
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- China
- Prior art keywords
- permanent magnet
- guide block
- assembly
- magnet rotor
- stator assembly
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- 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.)
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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
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- 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
- H02K15/16—Centering rotors within the stator; Balancing rotors
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a tool for assembling a stator assembly and a permanent magnet rotor assembly of a permanent magnet motor and an installation method thereof, and relates to the field of permanent magnet motor assembly. The arrangement of the guide block ensures that the permanent magnet rotor assembly is always positioned at the central position of the stator assembly when being installed, and the permanent magnet rotor assembly and the stator assembly cannot collide with each other, so that the assembly yield of the permanent magnet motor is improved, the production and manufacturing cost is reduced, the labor intensity of operators is reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to the field of permanent magnet motor assembly, in particular to a permanent magnet motor stator assembly and permanent magnet rotor assembly assembling tool and a permanent magnet motor stator assembly and permanent magnet rotor assembly installing method.
Background
Compared with the traditional motor, the permanent magnet motor has the advantages of simple structural form, reliable performance and the like. But because the magnetic force between the stator assembly and the permanent magnet rotor assembly and between the stator assembly and the ferromagnetic substance is larger, the permanent magnet rotor assembly is more difficult to assemble when being assembled. In the prior art, because an operator assembles the permanent magnet rotor assembly by manually holding the permanent magnet rotor assembly, the magnetic force is overcome by the manual operation of the operator; in the assembling process, due to the fact that the permanent magnets often collide with each other and with a magnetic conduction motor shell or other parts under the action of magnetic force, the phenomena of damage of the permanent magnets, breakage of stator component coils or clamping injury of operators are caused, and the problems of high rejection rate of the permanent magnets, unsafe assembling process, high production and manufacturing cost and the like are directly caused.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the assembly tool and the installation method for the stator assembly and the permanent magnet rotor assembly of the permanent magnet motor, which have the advantages of simple structure, easiness in production and convenience and quickness in installation.
The purpose of the invention is achieved by the following technical scheme: the invention provides an assembly tool for a stator assembly and a permanent magnet rotor assembly of a permanent magnet motor, which comprises a disc-shaped guide block, wherein a shaft hole is formed in the guide block and used for penetrating a motor shaft, a connecting groove is formed in the surface of the rear end of the guide block, a plurality of connecting holes penetrating through the connecting groove are formed in the front end surface of the guide block, a chamfer is arranged along the outer diameter of the front end of the guide block, steps are formed in corresponding positions on the outer circles of the left side and the right side of the guide block, fixing holes are formed in the guide block along the surface of the steps, the guide block is broken along the central line of the guide block to form an upper half part and a lower half part, and the upper half part.
As a preferred technical scheme, the extending section of the guide block is embedded into the connecting groove and is fixedly connected with the guide block through the connecting hole.
As the preferred technical scheme, the connecting holes are uniformly distributed along the periphery of the shaft hole.
Preferably, the chamfer angle is 15 °.
Preferably, the steps on the left side and the right side of the guide block are rotationally symmetrical along the center line of the guide block.
As a preferable technical scheme, the guide block is made of a nylon material.
On the other hand, the invention provides a method for installing the stator assembly and the permanent magnet rotor assembly of the permanent magnet motor by adopting the assembly tool, which comprises the following steps:
the method comprises the following steps: a bearing matched with a motor shaft is placed in an oven for heating, and an inner cover of the bearing is sleeved on a motor shaft provided with a permanent magnet rotor assembly;
step two: sleeving the heated bearing into the motor shaft and placing the heated bearing on the bearing inner cover;
step three: after the bearing is cooled, sleeving the front end cover on the bearing;
step four: sleeving a guide block on an motor shaft through a shaft hole and placing the guide block at the position of a rear bearing, wherein the upper half part and the lower half part of the guide block are fixed through bolts;
step five: sleeving the permanent magnet rotor assembly obtained in the step four and the parts of the permanent magnet rotor assembly into the stator assembly until the upper end of the stator assembly is propped against the lower end of the front end cover;
step six: and screwing out the bolt and taking down the guide block to finish the installation.
As a further technical scheme, in the fourth step, the installation gap between the shaft hole and the motor shaft is 0.4 mm.
As a further technical solution, in the fourth step, when the height of the stator assembly to be installed is small, a guide block extension section is embedded and installed on the guide block.
As a further technical scheme, in the fifth step, the gap between the outer diameter of the guide block and the outer diameter of the stator assembly is 0.8 mm; and the permanent magnet rotor assembly is fixed with the base after the permanent magnet rotor assembly and the stator assembly are installed.
The invention has the beneficial effects that: the arrangement of the guide block enables the permanent magnet rotor assembly to be always positioned at the central position of the stator assembly when being installed, so that the permanent magnet rotor assembly and the stator assembly cannot collide with each other, the rejection rate of the permanent magnet is reduced, the assembly yield of the permanent magnet motor is improved, the production and manufacturing cost is reduced, meanwhile, the labor intensity of operators is reduced, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a guide block of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a sectional view a-a of fig. 1.
FIG. 4 is a diagram of step one of the present invention, FIG. 1.
FIG. 5 is a diagram of step one of the present invention, FIG. 2.
FIG. 6 is a diagram illustrating a second step of the present invention.
FIG. 7 is a schematic diagram of step three of the present invention.
FIG. 8 is a diagram illustrating a fourth step of the present invention.
FIG. 9 is a schematic view of step five of the present invention in FIG. 1.
FIG. 10 is a schematic view of step five of the present invention in FIG. 2.
FIG. 11 is a schematic diagram of step six of the present invention.
Description of reference numerals: the motor comprises a bearing 1, a front end cover 2, a bearing inner cover 3, a permanent magnet rotor assembly 4, a stator assembly 5, a guide block 6, a motor shaft 7, a guide block extension section 8, an oven 9, a rear bearing position 10, a shaft hole 6-1, a connecting groove 6-2, a connecting hole 6-3, a chamfer 6-4, a step 6-5, a fixing hole 6-6, an upper half 6-7, a lower half 6-8 and a bolt 6-9.
Detailed Description
The invention will be described in detail below with reference to the following drawings:
example (b): as shown in attached figures 1-3, the assembly tool for the stator assembly and the permanent magnet rotor assembly of the permanent magnet motor comprises a disc-shaped guide block 6, wherein a shaft hole 6-1 is formed in the guide block 6 and is used for penetrating a motor shaft 7, a connecting groove 6-2 is formed in the rear end surface of the guide block 6, four connecting holes 6-3 penetrating through the connecting groove 6-2 are formed in the front end surface of the guide block 6, the connecting holes 6-3 are uniformly distributed along the periphery of the shaft hole 6-1 (as shown in figure 1), a chamfer 6-4 (preferably, the chamfer 6-4 is 15 degrees) is formed along the outer diameter of the front end of the guide block 6, steps 6-5 (rotationally symmetrical along the central line of the guide block 6) are formed in corresponding positions on the outer circles on the left side and the right side of the guide block 6, fixing holes 6-6 are formed in the guide block 6 along the surfaces of, the guide block 6 is broken along the central line thereof to form an upper half part 6-7 and a lower half part 6-8 which are fixedly connected with each other by bolts 6-9 penetrating into the fixing holes 6-6.
The connecting groove 6-2 is embedded with the guide block extension section 8 and is fixedly connected with the guide block 6 through the connecting hole 6-3.
As the preferred technical scheme, the guide block 6 is made of nylon materials, so that the guide block 6 is not magnetic conductive, wear-resistant and anti-collision, no powder is left on the motor during installation, and meanwhile, the nylon materials have the advantages of simple processing technology and low production cost.
The method for installing the stator assembly and the permanent magnet rotor assembly of the permanent magnet motor by adopting the assembly tool comprises the following steps:
the method comprises the following steps: the bearing 1 matched with the motor shaft 7 is placed in an oven 9 for heating (as shown in figure 4), and meanwhile, the bearing inner cover 3 is sleeved on the motor shaft 7 provided with the permanent magnet rotor assembly 4 (as shown in figure 5);
step two: sleeving the heated bearing 1 into the motor shaft 7 and placing the heated bearing on the bearing inner cover 3 (as shown in figure 6);
step three: after the bearing 1 is cooled, sleeving the front end cover 2 on the bearing 1, and placing the bearing 1 between the front end cover 2 and the bearing inner cover 3 (as shown in fig. 7);
step four: the guide block 6 is sleeved into the motor shaft 7 through the shaft hole 6-1 and is arranged at a rear bearing position 10 (preferably, the installation gap between the shaft hole 6-1 and the motor shaft 7 is about 0.4mm, and the guide block is not easy to be too large or too small), and the upper half part 6-7 and the lower half part 6-8 of the guide block 6 are fixed through bolts 6-9 and fixing holes 6-6; preferably, when the height of the stator assembly 5 to be installed is small, the guide block extension section 8 (shown in fig. 8) is embedded in the guide block 6 and is fixedly connected with the guide block 6 through the connecting hole 6-3;
step five: sleeving the permanent magnet rotor assembly 4 obtained in the fourth step and the components (the bearing 1 installed on the motor shaft 7, the front end cover 2 and the bearing inner cover 3) of the permanent magnet rotor assembly downwards into the stator assembly 5 (as shown in fig. 9) until the upper end of the stator assembly 5 is propped against the lower end of the front end cover 2 (as shown in fig. 10), and preferably, the gap between the outer diameter of the guide block 6 and the outer diameter of the stator assembly 5 is about 0.8 mm; the permanent magnet rotor assembly 4 and the stator assembly 5 are fixed with the base after being installed;
step six: the bolts 6-9 are unscrewed and the guide block 6 is removed, completing the installation (as shown in fig. 11).
According to the invention, the guide block is additionally arranged on the permanent magnet rotor assembly, so that the permanent magnet rotor assembly is always positioned at the central position of the stator assembly when being installed, and the phenomenon that the stator and the rotor assembly have no collision in the assembling process is found through actual use, so that the collision between parts is effectively avoided, the rejection rate of the permanent magnet is reduced, the assembling yield of the permanent magnet motor is improved, the production and manufacturing cost is reduced, the labor intensity of operators is reduced, the production efficiency is improved, and the permanent magnet motor assembling method has good popularization value in the field of permanent magnet motor assembling.
It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a permanent-magnet machine stator module and permanent magnet rotor subassembly assembly fixture which characterized in that: comprises a disc-shaped guide block (6), a shaft hole (6-1) is arranged on the guide block (6) for a motor shaft (7) to penetrate, the surface of the rear end of the guide block (6) is provided with a connecting groove (6-2), the front end surface of the guide block (6) is provided with a plurality of connecting holes (6-3) which penetrate through the connecting groove (6-2), the outer diameter of the front end of the guide block (6) is provided with a chamfer (6-4), steps (6-5) are arranged at corresponding positions on the excircles on the left side and the right side of the guide block (6), fixing holes (6-6) are arranged in the guide block (6) along the surfaces of the steps (6-5), the guide block (6) is broken along the central line of the guide block to form an upper half part (6-7) and a lower half part (6-8), and the upper half part and the lower half part are fixedly connected with each other by penetrating bolts (6-9) into the fixing holes (6-6).
2. The assembly tool for the stator assembly and the permanent magnet rotor assembly of the permanent magnet motor according to claim 1, characterized in that: the connecting groove (6-2) is internally embedded with a guide block extension section (8) and is fixedly connected with the guide block (6) through a connecting hole (6-3).
3. The assembly tool for the stator assembly and the permanent magnet rotor assembly of the permanent magnet motor according to claim 1, characterized in that: the connecting holes (6-3) are uniformly distributed along the periphery of the shaft hole (6-1).
4. The assembly tool for the stator assembly and the permanent magnet rotor assembly of the permanent magnet motor according to claim 1, characterized in that: the chamfer angle (6-4) is 15 degrees.
5. The assembly tool for the stator assembly and the permanent magnet rotor assembly of the permanent magnet motor according to claim 1, characterized in that: the steps (6-5) on the left side and the right side of the guide block (6) are rotationally symmetrical along the center line of the guide block (6).
6. The assembly tool for the stator assembly and the permanent magnet rotor assembly of the permanent magnet motor according to any one of claims 1-5, characterized in that: the guide block (6) is made of nylon materials.
7. The mounting method of the permanent magnet motor stator assembly and the permanent magnet rotor assembly is characterized in that: the method comprises the following steps:
the method comprises the following steps: a bearing (1) matched with the motor shaft (7) is placed in an oven (9) for heating, and meanwhile, an inner bearing cover (3) is sleeved on the motor shaft (7) provided with the permanent magnet rotor assembly (4);
step two: sleeving the heated bearing (1) into the motor shaft (7) and placing the heated bearing on the bearing inner cover (3);
step three: after the bearing (1) is cooled, sleeving the front end cover (2) on the bearing (1);
step four: sleeving a guide block (6) into a motor shaft (7) through a shaft hole (6-1) and placing the guide block at a rear bearing position (10), wherein the upper half part (6-7) and the lower half part (6-8) of the guide block (6) are fixed through bolts (6-9);
step five: sleeving the permanent magnet rotor assembly (4) obtained in the step four and the components thereof into the stator assembly (5) until the upper end of the stator assembly (5) is propped against the lower end of the front end cover (2);
step six: and screwing out the bolts (6-9) and removing the guide block (6) to finish the installation.
8. The method of installing a permanent magnet motor stator assembly and a permanent magnet rotor assembly according to claim 7, wherein: in the fourth step, the installation gap between the shaft hole (6-1) and the motor shaft (7) is 0.4 mm.
9. The method of installing a permanent magnet motor stator assembly and a permanent magnet rotor assembly according to claim 7, wherein: in the fourth step, when the height of the stator assembly (5) to be installed is smaller, the guide block extension section (8) is embedded and installed on the guide block (6).
10. The method of installing a permanent magnet motor stator assembly and a permanent magnet rotor assembly according to claim 7, wherein: in the fifth step, the clearance between the outer diameter of the guide block (6) and the outer diameter of the stator assembly (5) is 0.8 mm; and the permanent magnet rotor assembly (4) and the stator assembly (5) are fixed with the base after being installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010773244.9A CN111969810A (en) | 2020-08-04 | 2020-08-04 | Assembling tool and mounting method for stator assembly and permanent magnet rotor assembly of permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010773244.9A CN111969810A (en) | 2020-08-04 | 2020-08-04 | Assembling tool and mounting method for stator assembly and permanent magnet rotor assembly of permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111969810A true CN111969810A (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010773244.9A Pending CN111969810A (en) | 2020-08-04 | 2020-08-04 | Assembling tool and mounting method for stator assembly and permanent magnet rotor assembly of permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111969810A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005318699A (en) * | 2004-04-28 | 2005-11-10 | Hitachi Home & Life Solutions Inc | Method for manufacturing compressor employing permanent magnet rotor |
| CN202127339U (en) * | 2011-06-09 | 2012-01-25 | 上海电驱动有限公司 | Tool for assembling stator and rotor of permanent magnet motor |
| CN202918143U (en) * | 2012-10-14 | 2013-05-01 | 包头市天隆永磁电机制造有限责任公司 | Assembly guiding plate for medium-sized generator |
| CN203817988U (en) * | 2014-04-28 | 2014-09-10 | 山东山推机械有限公司 | High-orientation feeding roller bed of roller bed type shot blasting machine |
| CN107332410A (en) * | 2017-08-24 | 2017-11-07 | 重庆众泰汽车工业有限公司 | Method for assembling stator and rotor of small and medium-sized permanent magnet motor |
| CN107359723A (en) * | 2017-07-26 | 2017-11-17 | 卧龙电气集团股份有限公司 | The bearing insulation assembling structure and its manufacture method of insulating barrier are set in a kind of bearing holder (housing, cover) |
| CN109256914A (en) * | 2018-11-12 | 2019-01-22 | 四川德胜集团钒钛有限公司 | One kind is for permanent magnet synchronous motor assembly device and assembly method |
-
2020
- 2020-08-04 CN CN202010773244.9A patent/CN111969810A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005318699A (en) * | 2004-04-28 | 2005-11-10 | Hitachi Home & Life Solutions Inc | Method for manufacturing compressor employing permanent magnet rotor |
| CN202127339U (en) * | 2011-06-09 | 2012-01-25 | 上海电驱动有限公司 | Tool for assembling stator and rotor of permanent magnet motor |
| CN202918143U (en) * | 2012-10-14 | 2013-05-01 | 包头市天隆永磁电机制造有限责任公司 | Assembly guiding plate for medium-sized generator |
| CN203817988U (en) * | 2014-04-28 | 2014-09-10 | 山东山推机械有限公司 | High-orientation feeding roller bed of roller bed type shot blasting machine |
| CN107359723A (en) * | 2017-07-26 | 2017-11-17 | 卧龙电气集团股份有限公司 | The bearing insulation assembling structure and its manufacture method of insulating barrier are set in a kind of bearing holder (housing, cover) |
| CN107332410A (en) * | 2017-08-24 | 2017-11-07 | 重庆众泰汽车工业有限公司 | Method for assembling stator and rotor of small and medium-sized permanent magnet motor |
| CN109256914A (en) * | 2018-11-12 | 2019-01-22 | 四川德胜集团钒钛有限公司 | One kind is for permanent magnet synchronous motor assembly device and assembly method |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20211213 Address after: 313310 No. 55, Wufu Road, tianzihu Town Industrial Park, Anji County, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Saifu Electromechanical Technology Co.,Ltd. Address before: 311116 No.88 zhiwuli, Qianzhuang village, luniao Town, Yuhang District, Hangzhou City, Zhejiang Province Applicant before: HANGZHOU SAV MECHANICAL AND ELECTRICAL TECHNOLOGY CO.,LTD. |
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Application publication date: 20201120 |
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| RJ01 | Rejection of invention patent application after publication |