CN116054515A - Modularized multifunctional motor end cover tool and application method thereof - Google Patents
Modularized multifunctional motor end cover tool and application method thereof Download PDFInfo
- Publication number
- CN116054515A CN116054515A CN202211577234.3A CN202211577234A CN116054515A CN 116054515 A CN116054515 A CN 116054515A CN 202211577234 A CN202211577234 A CN 202211577234A CN 116054515 A CN116054515 A CN 116054515A
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- end cover
- flange
- generator
- motor
- motor end
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000005728 strengthening Methods 0.000 claims description 3
- 239000003351 stiffener Substances 0.000 claims 1
- 230000008569 process Effects 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Classifications
-
- 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
- H02K15/14—Casings; Enclosures; Supports
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides a modular multifunctional motor end cover tool and a use method thereof. The invention can be used as a generator support in a vertical state, and can provide a positioning reference for the stator and the rotor. The front end of the generator can be supported in a horizontal state, and bolts are not required to be replaced. In addition, a shafting can be installed at the central flange of the multifunctional end cover tool, and a generator dragging test is completed; when the generator is in delivery, the shafting can be switched into a hard support to finish the integral delivery of the generator.
Description
Technical Field
The invention belongs to the technical field of motor manufacturing equipment, and particularly relates to a modularized multifunctional motor end cover tool and a using method thereof.
Background
In recent years, the wind power generation industry rapidly develops and simultaneously faces the trouble of increasingly severe cost, so that the compact shaftless generator is a main stream model, and the problem of assembly, delivery and transmission chain integrated assembly of the shaftless generator is very important. The existing shaftless generator cannot position and assemble the stator and the rotor of the generator due to the shaftless and the front end cover when the generator is assembled; because the generator with the shaftless structure cannot carry out a dragging test; because the generator has no supporting feet, the generator cannot be tested in a horizontal posture and assembled horizontally; under the condition that the shaftless generator lacks an end cover and the rotor is of a permanent magnet structure, the stator and the rotor are extremely easy to be eccentric in the process of assembling and transporting the generator, air gaps, magnetic fields, shaft voltage and the like are directly influenced, and reliable support and fixation are needed in the process of assembling, testing and transporting the generator.
At present, an end cover of a gearbox manufacturer and a gearbox shafting are purchased and assembled with the generator, after relevant tests are completed, the end cover and the shafting of the gearbox are removed, and after a shipping tool is installed, the generator is integrally shipped to the gearbox manufacturer for subsequent assembly. The existing scheme utilizes a gear box end cover and a shaft system, and has the following defects:
the purchase cost of the end cover of the gear box is very high.
The end cover of the gear box has no vertical supporting function.
The generator has no horizontal supporting function in a horizontal test state, front-end and rear-end test supports are required to be designed, special bolts are required to be used, the bolts are required to be detached and replaced after the test is completed, and the operation is complex.
The generator is of a shaftless structure, and in order to ensure concentricity of the stator and the rotor, a shipping tool is required to be designed during shipping, so that the cost is high.
Disclosure of Invention
In order to solve the problems, the invention discloses a modularized multifunctional motor end cover tool and a using method thereof, wherein the modularized multifunctional motor end cover tool can be used as a generator support in a vertical state and can provide a positioning reference for a stator and a rotor. The front end of the generator can be supported in a horizontal state, and bolts are not required to be replaced. In addition, a shafting can be installed at the central flange of the multifunctional end cover tool, and a generator dragging test is completed; when the generator is in delivery, the shafting can be switched into a hard support to finish the integral delivery of the generator.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides a multi-functional motor end cover frock of modularization, includes the end cover disc, end cover disc bottom is provided with the supporting seat, be provided with central flange in the middle of the end cover disc, the outside is provided with outer flange, be provided with the strengthening rib on the end cover disc between intermediate flange and outer flange.
Further, a rigid support is mounted at the central flange.
Further, the reinforcing rib comprises an annular support between the central flange and the outer flange and a spoke-mounted scattering support uniformly distributed between the central flange and the outer flange.
Further, a group of triangular reinforcing support plates are arranged on the base.
The application method of the modularized multifunctional motor end cover tool comprises the following steps:
when the motor is assembled vertically, the modular multifunctional motor end cover tool is placed horizontally, and the whole end cover tool and the assembly parts are supported by the end cover disc and the reinforcing ribs at the bottom;
in the horizontal state of the motor, the modularized multifunctional motor end cover is supported by a bottom supporting seat, the outer flange of the stator part of the shafting-free generator is connected and positioned, the rotor part is connected with a shafting, and then the center flange is connected and positioned. Therefore, concentricity of the stator and the rotor is ensured, and an air gap of the generator is ensured;
during motor test, a shafting is arranged at the center flange, so that the motor can be dragged; the rigid support is arranged at the central flange when the generator is in delivery, so that the generator can resist impact load.
The beneficial effects are that:
1. the modularized multifunctional motor end cover tool disclosed by the invention has multiple functions and purposes such as vertical support, horizontal support, motor test, motor shipment, generator turning over and the like. The rotor and the stator are respectively fixed by the end cover tool, so that the air gap of the shaftless motor is ensured.
2. The support seat and the disc are detachable, so that the tool universality is enhanced, and the support seat can be changed into a height-adjustable mechanism, so that the tool is suitable for motors with different centers.
3. The tool provided by the invention has multiple purposes, repeated input of the tool is avoided, and the mounting and dismounting work of the tool can be reduced.
Drawings
Fig. 1 is a schematic perspective view of the present invention without the rigid support 6 installed;
fig. 2 is a schematic perspective view of another angle of the present invention, with a rigid support 6 mounted;
the reference numerals in the above figures denote:
1. a support base; 2. reinforcing ribs; 3. a central flange; 4. an outer flange; 5. an end cap disc; 6. and (3) rigidly supporting.
Detailed Description
The present invention is further illustrated in the following drawings and detailed description, which are to be understood as being merely illustrative of the invention and not limiting the scope of the invention.
The multi-functional motor end cover frock of modularization of this embodiment, including end cover disc 5, the bottom of end cover disc 5 is provided with supporting seat 1, be provided with central flange 3 in the middle of the end cover disc, the outside is provided with outer flange 4, be provided with strengthening rib 2 on the end cover disc between intermediate flange and outer flange.
In this embodiment a rigid support 6 is mounted at the central flange. The rigid support 6 is intended to be mounted at the central flange during shipment of the generator, enabling the generator to withstand impact loads and to be transported reliably.
The reinforcing bars in this embodiment comprise annular supports between the central flange and the outer flange and spoke-mounted scattering supports evenly distributed between the central flange and the outer flange.
In this embodiment, a group of triangular reinforcing support plates are disposed on the base.
The application method of the modularized multifunctional motor end cover tool comprises the following steps:
when the motor is assembled vertically, the modular multifunctional motor end cover tool is placed horizontally, and the whole end cover tool and the assembly parts are supported by the end cover disc and the reinforcing ribs at the bottom; the overall strength of the end cover can be increased.
In the horizontal state of the motor, the modularized multifunctional motor end cover is supported by a bottom supporting seat, the outer flange of the stator part of the shafting-free generator is connected and positioned, the rotor part is connected with a shafting, and then the center flange is connected and positioned. Therefore, concentricity of the stator and the rotor is ensured, and an air gap of the generator is ensured; and a special supporting tool is not required to be designed, so that the mounting and dismounting time of the tool is saved.
During motor test, a shafting is arranged at the center flange, so that the motor can be dragged; the rigid support is arranged at the central flange when the generator is in delivery, so that the generator can resist impact load. The generator can resist impact load and is reliably transported.
It should be noted that the foregoing merely illustrates the technical idea of the present invention and is not intended to limit the scope of the present invention, and that a person skilled in the art may make several improvements and modifications without departing from the principles of the present invention, which fall within the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a multi-functional motor end cover frock of modularization, its characterized in that, includes the end cover disc, end cover disc bottom is provided with the supporting seat, be provided with central flange in the middle of the end cover disc, the outside is provided with the outward flange, be provided with the strengthening rib on the end cover disc between intermediate flange and outward flange.
2. The modular multi-functional motor end cap tooling of claim 1, wherein a rigid support is mounted at the center flange.
3. The modular multi-functional motor end cap tooling of claim 1, wherein the stiffener includes an annular support between the center flange and the outer flange and a spoke-mounted scatter support evenly distributed between the center flange and the outer flange.
4. The modular multi-functional motor end cap tooling of claim 1, wherein the base is provided with a set of triangular reinforcing support plates.
5. A method of using the modular multi-functional motor end cap tooling of any one of claims 1-4, the method comprising:
when the motor is assembled vertically, the modular multifunctional motor end cover tool is placed horizontally, and the whole end cover tool and the assembly parts are supported by the end cover disc and the reinforcing ribs at the bottom;
in a horizontal state of the motor, the modularized multifunctional motor end cover is supported by a bottom supporting seat, the outer flange of the stator part of the shafting-free generator is connected and positioned, the rotor part is connected with a shafting, and then the rotor part is connected and positioned by a central flange;
therefore, concentricity of the stator and the rotor is ensured, and an air gap of the generator is ensured;
during motor test, a shafting is arranged at the center flange, so that the motor can be dragged; the rigid support is arranged at the central flange when the generator is in delivery, so that the generator can resist impact load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211577234.3A CN116054515A (en) | 2022-12-09 | 2022-12-09 | Modularized multifunctional motor end cover tool and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211577234.3A CN116054515A (en) | 2022-12-09 | 2022-12-09 | Modularized multifunctional motor end cover tool and application method thereof |
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| Publication Number | Publication Date |
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| CN116054515A true CN116054515A (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211577234.3A Pending CN116054515A (en) | 2022-12-09 | 2022-12-09 | Modularized multifunctional motor end cover tool and application method thereof |
Country Status (1)
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| CN (1) | CN116054515A (en) |
Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4835405A (en) * | 1987-11-30 | 1989-05-30 | Onan Corporation | Generator set and method |
| CN2865114Y (en) * | 2006-02-27 | 2007-01-31 | 马建军 | Motor flange with bearing sealed cavity |
| CN101388622A (en) * | 2008-07-07 | 2009-03-18 | 哈尔滨工业大学 | Bending Vibration Sandwich Transducer Type Disc Type Double Rotor Ultrasonic Motor |
| KR20090085511A (en) * | 2008-02-04 | 2009-08-07 | 종샨 브로드-오션 모터 컴퍼니 리미티드 | Stator assembly in plastic packaging brushless electric motor |
| CN201374606Y (en) * | 2009-03-18 | 2009-12-30 | 常州富兴机电有限公司 | Damping motor |
| JP2011196337A (en) * | 2010-03-23 | 2011-10-06 | Toshiba Corp | Motor fan device and vacuum cleaner |
| CN202215441U (en) * | 2011-07-22 | 2012-05-09 | 邓允河 | End cover structure on vertical wind driven generator |
| CN102769344A (en) * | 2012-07-20 | 2012-11-07 | 林贵生 | Direct drive type motor or generator capable of steplessly converting torque and regulating speed |
| CN103454586A (en) * | 2013-09-11 | 2013-12-18 | 永济新时速电机电器有限责任公司 | Novel testing device for single-ended bearing supporting structure motor |
| KR20140032122A (en) * | 2012-09-06 | 2014-03-14 | 엔젠텍 리미티드 | Modular electrical machine |
| CN103855846A (en) * | 2012-11-30 | 2014-06-11 | 吴文娟 | Flange end cover for motor |
| CN204835765U (en) * | 2015-08-24 | 2015-12-02 | 温岭市巨同机电有限公司 | Electric motor car driving motor |
| CN205356089U (en) * | 2016-01-25 | 2016-06-29 | 江苏南车电机有限公司 | General support frock of permanent magnet wind power generator stator main shaft |
| CN106160303A (en) * | 2016-09-23 | 2016-11-23 | 刘勇亨 | Construct integrated low-carbon (LC) motor casing and motor that multistage rotor is coaxially connected |
| CN206471988U (en) * | 2016-12-30 | 2017-09-05 | 江西泰豪军工集团有限公司 | A kind of high radiating motor of shaftless end-cover-free |
| CN206481149U (en) * | 2017-02-20 | 2017-09-08 | 嵊州市超力电器厂 | High-speed electric expreess locomotive rear end cap with mounting interface |
| CN207114729U (en) * | 2017-07-28 | 2018-03-16 | 安徽皖南电机股份有限公司 | The test fixture of motor |
| WO2019002923A1 (en) * | 2017-06-30 | 2019-01-03 | Agile Wind Power Ag | Vertical wind turbine comprising a coaxial pitch motor, kit for same, and method for operating same |
| CN208607334U (en) * | 2018-08-15 | 2019-03-15 | 上海市特种设备监督检验技术研究院 | A kind of braking motor locked rotor test platform |
| CN110212719A (en) * | 2019-06-06 | 2019-09-06 | 中车大连机车车辆有限公司 | A kind of centering adjusts end cap and its adjusting method |
| CN209730942U (en) * | 2019-06-24 | 2019-12-03 | 淮安苏马电机科技有限公司 | A kind of and integrated electric machine flange end cap of center rest |
| CN110768412A (en) * | 2019-11-13 | 2020-02-07 | 珠海凯邦电机制造有限公司 | Assembly structure for connecting motor stator and end cover and motor |
| CN210068477U (en) * | 2019-06-17 | 2020-02-14 | 天津市金辉空气压缩机制造有限公司 | Screw compressor transmission system center positioning mechanism |
| CN110865305A (en) * | 2019-12-02 | 2020-03-06 | 通号轨道车辆有限公司 | Asynchronous traction motor test device |
| CN113067440A (en) * | 2021-03-11 | 2021-07-02 | 西安中车永电捷力风能有限公司 | Tool for assembling wind driven generator and using method thereof |
| CN114421674A (en) * | 2021-12-20 | 2022-04-29 | 西安中车永电捷力风能有限公司 | Integrated high-strength rotor structure for medium-speed permanent magnet wind driven generator |
| CN216788648U (en) * | 2022-03-02 | 2022-06-21 | 广东美芝制冷设备有限公司 | End cover, compressor and temperature control equipment |
| CN216882355U (en) * | 2022-03-01 | 2022-07-05 | 天津市捷东焊材有限公司 | High-hardness and high-wear-resistance surfacing flux-cored wire |
| CN217328386U (en) * | 2022-02-28 | 2022-08-30 | 安徽哈雷传动机械有限公司 | Flange structure of speed reducing motor |
| CN217596548U (en) * | 2022-06-01 | 2022-10-18 | 南阳微特防爆电机有限公司 | Auxiliary drilling tool for flange end cover of motor base |
-
2022
- 2022-12-09 CN CN202211577234.3A patent/CN116054515A/en active Pending
Patent Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4835405A (en) * | 1987-11-30 | 1989-05-30 | Onan Corporation | Generator set and method |
| CN2865114Y (en) * | 2006-02-27 | 2007-01-31 | 马建军 | Motor flange with bearing sealed cavity |
| KR20090085511A (en) * | 2008-02-04 | 2009-08-07 | 종샨 브로드-오션 모터 컴퍼니 리미티드 | Stator assembly in plastic packaging brushless electric motor |
| CN101388622A (en) * | 2008-07-07 | 2009-03-18 | 哈尔滨工业大学 | Bending Vibration Sandwich Transducer Type Disc Type Double Rotor Ultrasonic Motor |
| CN201374606Y (en) * | 2009-03-18 | 2009-12-30 | 常州富兴机电有限公司 | Damping motor |
| JP2011196337A (en) * | 2010-03-23 | 2011-10-06 | Toshiba Corp | Motor fan device and vacuum cleaner |
| CN202215441U (en) * | 2011-07-22 | 2012-05-09 | 邓允河 | End cover structure on vertical wind driven generator |
| CN102769344A (en) * | 2012-07-20 | 2012-11-07 | 林贵生 | Direct drive type motor or generator capable of steplessly converting torque and regulating speed |
| KR20140032122A (en) * | 2012-09-06 | 2014-03-14 | 엔젠텍 리미티드 | Modular electrical machine |
| CN103855846A (en) * | 2012-11-30 | 2014-06-11 | 吴文娟 | Flange end cover for motor |
| CN103454586A (en) * | 2013-09-11 | 2013-12-18 | 永济新时速电机电器有限责任公司 | Novel testing device for single-ended bearing supporting structure motor |
| CN204835765U (en) * | 2015-08-24 | 2015-12-02 | 温岭市巨同机电有限公司 | Electric motor car driving motor |
| CN205356089U (en) * | 2016-01-25 | 2016-06-29 | 江苏南车电机有限公司 | General support frock of permanent magnet wind power generator stator main shaft |
| CN106160303A (en) * | 2016-09-23 | 2016-11-23 | 刘勇亨 | Construct integrated low-carbon (LC) motor casing and motor that multistage rotor is coaxially connected |
| CN206471988U (en) * | 2016-12-30 | 2017-09-05 | 江西泰豪军工集团有限公司 | A kind of high radiating motor of shaftless end-cover-free |
| CN206481149U (en) * | 2017-02-20 | 2017-09-08 | 嵊州市超力电器厂 | High-speed electric expreess locomotive rear end cap with mounting interface |
| WO2019002923A1 (en) * | 2017-06-30 | 2019-01-03 | Agile Wind Power Ag | Vertical wind turbine comprising a coaxial pitch motor, kit for same, and method for operating same |
| CN207114729U (en) * | 2017-07-28 | 2018-03-16 | 安徽皖南电机股份有限公司 | The test fixture of motor |
| CN208607334U (en) * | 2018-08-15 | 2019-03-15 | 上海市特种设备监督检验技术研究院 | A kind of braking motor locked rotor test platform |
| CN110212719A (en) * | 2019-06-06 | 2019-09-06 | 中车大连机车车辆有限公司 | A kind of centering adjusts end cap and its adjusting method |
| CN210068477U (en) * | 2019-06-17 | 2020-02-14 | 天津市金辉空气压缩机制造有限公司 | Screw compressor transmission system center positioning mechanism |
| CN209730942U (en) * | 2019-06-24 | 2019-12-03 | 淮安苏马电机科技有限公司 | A kind of and integrated electric machine flange end cap of center rest |
| CN110768412A (en) * | 2019-11-13 | 2020-02-07 | 珠海凯邦电机制造有限公司 | Assembly structure for connecting motor stator and end cover and motor |
| CN110865305A (en) * | 2019-12-02 | 2020-03-06 | 通号轨道车辆有限公司 | Asynchronous traction motor test device |
| CN113067440A (en) * | 2021-03-11 | 2021-07-02 | 西安中车永电捷力风能有限公司 | Tool for assembling wind driven generator and using method thereof |
| CN114421674A (en) * | 2021-12-20 | 2022-04-29 | 西安中车永电捷力风能有限公司 | Integrated high-strength rotor structure for medium-speed permanent magnet wind driven generator |
| CN217328386U (en) * | 2022-02-28 | 2022-08-30 | 安徽哈雷传动机械有限公司 | Flange structure of speed reducing motor |
| CN216882355U (en) * | 2022-03-01 | 2022-07-05 | 天津市捷东焊材有限公司 | High-hardness and high-wear-resistance surfacing flux-cored wire |
| CN216788648U (en) * | 2022-03-02 | 2022-06-21 | 广东美芝制冷设备有限公司 | End cover, compressor and temperature control equipment |
| CN217596548U (en) * | 2022-06-01 | 2022-10-18 | 南阳微特防爆电机有限公司 | Auxiliary drilling tool for flange end cover of motor base |
Non-Patent Citations (1)
| Title |
|---|
| 罗贵敏;: "螺杆式空压机常见故障原因分析与应对措施", 工业技术创新, no. 03, 11 June 2020 (2020-06-11) * |
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