CN109962585B - Large-diameter rotor shielding sleeve pulling process method - Google Patents
Large-diameter rotor shielding sleeve pulling process method Download PDFInfo
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- CN109962585B CN109962585B CN201711400941.4A CN201711400941A CN109962585B CN 109962585 B CN109962585 B CN 109962585B CN 201711400941 A CN201711400941 A CN 201711400941A CN 109962585 B CN109962585 B CN 109962585B
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- shielding sleeve
- circular ring
- rotor
- pulling
- welding
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Tyre Moulding (AREA)
Abstract
The invention relates to a pulling process method of a large-diameter rotor shielding sleeve, which is characterized in that the shielding sleeve is welded on a circular ring, the pressure is applied to the circular ring, the circular ring drives the shielding sleeve, the assembly of the shielding sleeve is smoothly completed, the shielding sleeve pressure of the high-diameter large-diameter thin-wall rotor is met, in the pulling process, the leading-in end of the shielding sleeve is welded with the pulling ring, the pulling stress point is increased, thereby realizing the change of the pressing mode of the shielding sleeve to the pulling mode, realizing the pulling assembly of the large-diameter rotor, applying the assembly pressure on the pulling ring, enabling the shielding sleeve to indirectly bear the tensile force and further enabling the shielding sleeve to be in interference assembly on the rotor, changing the assembly stress point of the shielding sleeve, on the premise of ensuring that the magnitude of interference is not changed, the problems of shielding sleeve stack pressing and high rejection rate are solved, raw materials are saved, meanwhile, the production cost is reduced, and a good solution is provided for producing larger-diameter rotor shielding sleeve of a high-power pump and a motor.
Description
Technical Field
The invention relates to a drawing and assembling process method for a large-diameter rotor shielding sleeve, which is a process method for welding the shielding sleeve together by utilizing a tool and assembling the shielding sleeve on a rotor together with the tool by pressing.
Background
The shielding motor, the electric pump rotor shielding case and the rotor core are in interference fit, the shielding case leading-in end does not have the pull-up stress point in the assembling process, the prior art can only adopt a pressing plate to place at the top of the shielding case, the pressure is applied to the shielding case, the shielding case is thinner, the thin case is pressed on the rotor, on the premise of ensuring that the interference is not changed, the diameter of the rotor is larger, the relative friction force is larger, the pressure to be borne by the thin-wall shielding case is larger, the risk of pressure pile is higher, the rejection rate is higher, and for the welding case with the diameter of more than 220mm, the rejection rate can reach more than 50%, raw materials are wasted, and the production cost is increased.
Disclosure of Invention
The invention aims to overcome the defects and provides a large-diameter rotor shielding sleeve pulling process method which mainly solves the problems that a shielding motor, a motor pump rotor shielding sleeve and a rotor iron core are in interference fit, a pulling stress point is not arranged at the leading-in end of the shielding sleeve in the assembling process, only a pressing plate can be placed at the top of the shielding sleeve to apply pressure to the shielding sleeve, and the thin sleeve is pressed on a rotor due to the fact that the shielding sleeve is thin, and on the premise that the interference is not changed, the larger the diameter of the rotor is, the larger the relative friction force is, the larger the pressure the thin-wall shielding sleeve needs to bear, the higher the risk and the rejection rate of pile pressing are, and the like. The process method comprises the following steps: firstly, preparing a tool, and forming an auxiliary tool by using a base, a supporting rod and a top plate for later use; preparing a press tire, namely forming the press tire by using a circular plate, a circular ring, a connecting rod, a nut and a jack for standby; preparing a circular ring, welding a rotor shielding sleeve on a pull-mounting circular ring, applying pressure to the pull-mounting circular ring, pulling the rotor in an interference manner, wherein the circular ring is provided with a welding stress groove, the position of the circular ring is 0.8-1 mm away from the shielding sleeve, pounding the circular ring welded with the shielding sleeve at the stress groove to form an inclined plane type guide structure, the circular ring and the rotor shielding sleeve are in clearance fit, the fit clearance is 0.3-0.4 mm, argon arc welding is adopted during welding, the argon arc welding self-melting welding parameters are welding current 45A-55A, argon flow 10-12L/min and welding speed 110-150 mm/min; fourthly, a step of pull-loading process is carried out, the rotor is vertically arranged on an auxiliary tool, and the verticality of the rotor is controlled by adjusting the base; cleaning the inner diameter of the shielding sleeve before assembly, assembling the pressure tire and the shielding sleeve with the circular ring together by using a connecting rod, a nut and a flat gasket without colliding the surface of the thin-wall sleeve in the assembly process, and adjusting the height of each section by using the flat gasket in the assembly process; placing an assembly part consisting of a pressure mounting tire and a shielding sleeve with a circular ring at a pressure mounting position, and pressing the assembly part into the rotor by using a jack to jack an upper top plate; seventhly, after the shielding sleeve is pressed into a specified position, the position of a welding port of the shielding sleeve and the circular ring is polished, the circular ring is taken down, and the pulling, the loading and the pressing are finished. The auxiliary tool is composed of a base support rod and a top plate in the preparation of the auxiliary tool and has the functions of providing a support point and providing a support force required during pressure installation, the pressure installation tool is composed of a circular plate, a circular ring, a connecting rod, a nut and a jack, the pressure installation tool in the form is light in weight and convenient to adjust, the state in the pressure installation process of the shielding sleeve can be directly observed, the cost of the pressure installation tool is low, the economy is good, the pressure installation tool is more suitable for being used during pulling and installing the rotor shielding sleeve with large diameter and long length compared with the pressure installation tool in the production of a cylinder type, the pulling and installing process method of the large-diameter rotor shielding sleeve is characterized in that the shielding sleeve is welded on the circular ring, the pressure is applied to the circular ring, the circular ring drives the shielding sleeve, the assembly of the shielding sleeve is smoothly completed, the pressure installation of the high-diameter thin-wall rotor shielding sleeve is met, the pulling and installing circular ring is welded at the leading-in end of the shielding sleeve in, the method has the advantages that the shielding sleeve is indirectly stressed by tensile force and then is in interference fit on the rotor, the assembly stress point of the shielding sleeve is changed by adopting the pulling process method, the problems of shielding sleeve pressure pile and high rejection rate are solved on the premise of ensuring that the interference magnitude is not changed, raw materials are saved, the production cost is reduced, and a good solution is provided for producing shielding sleeve pressure of large-diameter rotors of high-power pumps and motors.
The specific implementation mode is as follows:
firstly, preparing a tool, and forming an auxiliary tool by using a base, a supporting rod and a top plate for later use;
preparing a press tire, namely forming the press tire by using a circular plate, a circular ring, a connecting rod, a nut and a jack for standby;
preparing a circular ring, welding a rotor shielding sleeve on a pull-mounting circular ring, applying pressure to the pull-mounting circular ring, pulling the rotor in an interference manner, wherein the circular ring is made of a material compatible with the shielding sleeve in welding, the circular ring is provided with a welding stress groove, the position of the circular ring is 0.8-1 mm away from the shielding sleeve, the circular ring welded with the shielding sleeve is hammered out of an inclined plane type guide structure at the stress groove, the inclined plane type guide structure has the function of conveniently pulling a rotor iron core into the shielding sleeve in the pulling process, the circular ring is in clearance fit with the rotor shielding sleeve, the fit clearance is 0.3-0.4 mm, argon arc welding is adopted in the welding process, and the argon arc welding self-melting welding parameters are welding current 45A-55A, argon flow is 10-12L/min, and welding speed is 110-150 mm/min;
fourthly, a step of pull-loading process is carried out, the rotor is vertically arranged on an auxiliary tool, and the verticality of the rotor is controlled by adjusting the base;
cleaning the inner diameter of the shielding sleeve before assembly, not colliding with the surface of the thin-wall sleeve in the assembly process, assembling the pressure tire and the shielding sleeve with the circular rings together by using a connecting rod, a nut and a flat gasket, adjusting the height of each section by using the flat gasket in the assembly process, and ensuring the parallelism of the circular rings on two sides after assembly;
placing an assembly part consisting of a pressing tire and a shielding sleeve with a circular ring at a pressing position, using a jack to jack an upper top plate to press the assembly part into the rotor, observing the offset condition of a pressing inlet in the pressing process, timely using a gasket for adjustment to ensure the pressing verticality, observing whether the pressing inlet has accumulated scraps and removing the accumulated scraps in time;
seventhly, after the shielding sleeve is pressed into a specified position, the position of a welding port of the shielding sleeve and the circular ring is polished, the circular ring is taken down, and the pulling, the loading and the pressing are finished.
Claims (1)
1. A large-diameter rotor shielding sleeve pulling and assembling process method is characterized in that:
firstly, preparing a tool, and forming an auxiliary tool by using a base, a supporting rod and a top plate for later use;
preparing a press tire, namely forming the press tire by using a circular plate, a circular ring, a connecting rod, a nut and a jack for standby;
welding a rotor shielding sleeve on a circular ring, applying pressure to the circular ring, drawing and installing the circular ring on a rotor in an interference manner, wherein the circular ring is provided with a welding stress groove, the position of the circular ring is 0.8-1 mm away from the shielding sleeve, a hand hammer is used for hammering the circular ring welded with the shielding sleeve into an inclined plane type guide structure at the stress groove, the circular ring and the rotor shielding sleeve are in clearance fit, the fit clearance is 0.3-0.4 mm, argon arc welding is adopted during welding, the argon arc welding autogenous melting welding parameters are welding current 45A-55A, argon flow is 10-12L/min, and the welding speed is 110-150 mm/min;
fourthly, a step of pull-loading process is carried out, the rotor is vertically arranged on an auxiliary tool, and the verticality of the rotor is controlled by adjusting the base;
cleaning the inner diameter of the shielding sleeve before assembly, assembling the pressure tire and the shielding sleeve with the circular ring together by using a connecting rod, a nut and a flat gasket without colliding the surface of the shielding sleeve in the assembly process, and adjusting the height of each section by using the flat gasket in the assembly process;
placing an assembly part consisting of a pressure mounting tire and a shielding sleeve with a circular ring at a pressure mounting position, and pressing the assembly part into the rotor by using a jack to jack an upper top plate;
seventhly, after the shielding sleeve is pressed into a specified position, the position of a welding port of the shielding sleeve and the circular ring is polished, the circular ring is taken down, and the pulling, the loading and the pressing are finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400941.4A CN109962585B (en) | 2017-12-22 | 2017-12-22 | Large-diameter rotor shielding sleeve pulling process method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400941.4A CN109962585B (en) | 2017-12-22 | 2017-12-22 | Large-diameter rotor shielding sleeve pulling process method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109962585A CN109962585A (en) | 2019-07-02 |
| CN109962585B true CN109962585B (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711400941.4A Active CN109962585B (en) | 2017-12-22 | 2017-12-22 | Large-diameter rotor shielding sleeve pulling process method |
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| Country | Link |
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| CN (1) | CN109962585B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1141879A (en) * | 1997-07-18 | 1999-02-12 | Toshiba Corp | Method and apparatus for press molding |
| CN101309034A (en) * | 2008-01-30 | 2008-11-19 | 上海新沪电机厂有限公司 | Machining method of shielding motor rotor |
| CN102474151A (en) * | 2009-09-05 | 2012-05-23 | 格伦德福斯管理联合股份公司 | Rotor can |
| CN103066767A (en) * | 2012-12-24 | 2013-04-24 | 哈尔滨电气动力装备有限公司 | Sleeve heating process for motor rotor shield sleeve |
| CN205017185U (en) * | 2015-09-29 | 2016-02-03 | 珠海凯邦电机制造有限公司 | Motor rotor press-fitting tool |
| CN105356688A (en) * | 2015-11-22 | 2016-02-24 | 大连理工大学 | Apparatus and method for prolonging time of heating assembling of rotor shielding sleeve of nuclear main pump |
| CN105871130A (en) * | 2016-03-26 | 2016-08-17 | 舟山晨光电器有限公司 | Assembly machine of motor rotor |
-
2017
- 2017-12-22 CN CN201711400941.4A patent/CN109962585B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1141879A (en) * | 1997-07-18 | 1999-02-12 | Toshiba Corp | Method and apparatus for press molding |
| CN101309034A (en) * | 2008-01-30 | 2008-11-19 | 上海新沪电机厂有限公司 | Machining method of shielding motor rotor |
| CN102474151A (en) * | 2009-09-05 | 2012-05-23 | 格伦德福斯管理联合股份公司 | Rotor can |
| CN103066767A (en) * | 2012-12-24 | 2013-04-24 | 哈尔滨电气动力装备有限公司 | Sleeve heating process for motor rotor shield sleeve |
| CN205017185U (en) * | 2015-09-29 | 2016-02-03 | 珠海凯邦电机制造有限公司 | Motor rotor press-fitting tool |
| CN105356688A (en) * | 2015-11-22 | 2016-02-24 | 大连理工大学 | Apparatus and method for prolonging time of heating assembling of rotor shielding sleeve of nuclear main pump |
| CN105871130A (en) * | 2016-03-26 | 2016-08-17 | 舟山晨光电器有限公司 | Assembly machine of motor rotor |
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| CN109962585A (en) | 2019-07-02 |
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Inventor after: Wang Xiaowen Inventor after: Zhao Guobin Inventor after: Zhao Yong Inventor after: Liu Weixing Inventor after: Zhao Jianing Inventor after: Jiang Lili Inventor after: Wen Shengbin Inventor after: Liu Yongsheng Inventor after: Li Hongyu Inventor after: Hu Shuangquan Inventor before: Wang Xiaowen Inventor before: Zhao Guobin Inventor before: Zhao Yong Inventor before: Liu Weixing Inventor before: Zhao Jianing Inventor before: Jiang Lili Inventor before: Wen Shengbin Inventor before: Liu Yongsheng Inventor before: Li Hongyu Inventor before: Hu Shuangquan |
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