CN112332597A - Motor shaft structure and process of high-power-density power generation system - Google Patents
Motor shaft structure and process of high-power-density power generation system Download PDFInfo
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- CN112332597A CN112332597A CN202011154673.4A CN202011154673A CN112332597A CN 112332597 A CN112332597 A CN 112332597A CN 202011154673 A CN202011154673 A CN 202011154673A CN 112332597 A CN112332597 A CN 112332597A
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- shaft
- end cover
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- sleeve
- cover shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
- F16C3/023—Shafts; Axles made of several parts, e.g. by welding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ocean & Marine Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a motor shaft structure and a process of a high-power-density power generation system. And finishing the processing of the motor rotor assembly on the basis of determining the size parameters of the motor rotor assembly, namely the end cover shaft sleeve, the end cover shaft, the magnetic core, the sheath shaft and the sheath shaft sleeve. Firstly assembling the sheath shaft and the magnetic core, secondly assembling the end cover shaft, the sheath shaft and the magnetic core, then assembling the end cover shaft sleeve and the end cover shaft, assembling the sheath shaft sleeve and the sheath shaft, and finally integrally processing the motor rotor. The motor rotor structure can enhance the integral rigidity of the rotor, improve the highest working rotating speed of the motor rotor and improve the power density of the motor; meanwhile, the manufacturing difficulty of the motor rotor can be reduced, the dynamic balance precision and the installation precision of the motor rotor are ensured, and the working reliability of the motor is improved.
Description
Technical Field
The invention belongs to the field of structural design of closed Brayton cycle power generation systems, and particularly relates to a motor shaft structure and a process of a high-power-density power generation system.
Background
As a novel power form, the closed Brayton cycle power generation system can realize the conversion of heat energy to electric energy by the aid of a certain gas working medium through thermodynamic cycle processes such as heat absorption, expansion work, heat release, compression and the like under a closed condition. The typical closed Brayton cycle power generation system mainly structurally comprises a turbine, a gas compressor, a motor, a heat regenerator and the like.
The motor is one of the core components in the closed Brayton cycle power generation system, is a key component for realizing the efficient conversion from mechanical energy to electric energy, and has very important influence on the stable operation, reliability and service life of the whole power generation system. The motor rotor is used as a high-speed rotating part in a motor of the closed Brayton cycle power generation system, and the rotating speed can reach tens of thousands of revolutions per minute; in order to improve the power density of the closed Brayton cycle power generation system, the rotating speed of some motor rotors even reaches more than one hundred thousand revolutions per minute, and once the motor rotor structure breaks down, the motor can not normally work, and the damage of the closed Brayton cycle power generation system can be caused.
The motor rotor in the closed Brayton cycle power generation system usually adopts a permanent magnet material, and because the strength of the permanent magnet material is lower, in order to improve the rotating speed of the motor rotor, a metal sheath needs to be additionally arranged on the outer side of the permanent magnet of the motor rotor so as to improve the overall strength of the rotor. After the motor rotor is additionally provided with the metal sheath, a coupling structure is needed for realizing the connection between the motor rotor and the engine rotor, but the application of the coupling structure can not only increase the volume and the weight of the closed Brayton cycle power generation system, but also increase the manufacturing and assembling difficulty of the motor rotor and the engine rotor, and particularly to a high-speed rotor structure.
Therefore, aiming at the structural characteristics of the rotor of the closed Brayton cycle power generation system, the rotor structure is reasonably designed, so that the high-rotating-speed working reliability of the motor rotor can be ensured, the manufacturing and assembling difficulty of the motor rotor and the engine rotor can be reduced and increased, and the power density of the closed Brayton cycle power generation system is improved.
Disclosure of Invention
The invention provides a motor shaft structure and a process of a high-power-density power generation system, aiming at a motor rotor structure in a closed Brayton cycle power generation system. The motor rotor structure comprises an end cover shaft sleeve, an end cover shaft, a magnetic core, a sheath shaft and a sheath shaft sleeve. According to the structural size parameters of the high-power-density thermoelectric conversion system motor, the processing of the motor rotor assembly is completed on the basis of determining the size parameters of the end cover shaft sleeve, the end cover shaft, the magnetic core, the sheath shaft and the sheath shaft sleeve. Firstly assembling the sheath shaft and the magnetic core, secondly assembling the end cover shaft, the sheath shaft and the magnetic core, then assembling the end cover shaft sleeve and the end cover shaft, assembling the sheath shaft sleeve and the sheath shaft, and finally integrally processing the motor rotor. The motor rotor structure can enhance the overall rigidity of the motor rotor, improve the highest working speed of the motor rotor, improve the power density of the motor, reduce the processing and manufacturing difficulty of the motor rotor, and fully ensure the dynamic balance precision and the installation precision of the motor rotor.
The technical scheme of the invention is as follows:
a motor shaft structure of a high-power-density power generation system comprises an end cover shaft sleeve, an end cover shaft, a magnetic core, a sheath shaft and a sheath shaft sleeve.
The outer side of the end cover shaft sleeve is provided with a cylindrical surface matched with a bearing, one side end surface and the cylindrical surface of the end cover shaft sleeve are matched with an annular groove of the end cover shaft, and the central part of the end cover shaft sleeve is provided with a through hole assembled with an optical axis of the end cover shaft;
one side of the end cover shaft is provided with a cylindrical boss assembled with the magnetic core and the sheath shaft, the other side of the end cover shaft is provided with an annular groove and an optical axis assembled with the end cover shaft sleeve, the optical axis on the end cover shaft can be assembled with the impeller part, and through holes are uniformly distributed on the cylindrical boss of the end cover shaft along the circumferential direction;
the magnetic core is a solid cylinder, the magnetic core is arranged in the sleeve of the sheath shaft, and two ends of the magnetic core are respectively attached to the bottom of the sleeve of the sheath shaft and the end surface of the cylindrical boss on the end cover shaft;
the impeller comprises a sheath shaft, a magnetic core and a sleeve, wherein the sheath shaft is provided with a cylindrical boss, the cylindrical boss is arranged on the end cover shaft, the sleeve is provided with the magnetic core, the cylindrical boss is assembled with the cylindrical boss, the other side of the sheath shaft is provided with an annular groove and an optical axis, the annular groove and the optical axis are assembled with a sheath shaft sleeve, the optical axis of the sheath shaft can be assembled with an impeller part, and through holes are uniformly distributed at the bottom of;
the outer side of the sheath shaft sleeve is provided with a cylindrical surface matched with a bearing, one side end surface and the cylindrical surface of the sheath shaft sleeve are matched with a sheath shaft annular groove, and the central part of the sheath shaft sleeve is provided with a through hole assembled with the sheath shaft.
An assembly process of a motor shaft of a high power density power generation system comprises the following steps:
a. determining the structural dimension parameters of the rotor assembly of the motor: determining the size parameters of the end cover shaft sleeve, the end cover shaft, the magnetic core, the sheath shaft and the sheath shaft sleeve according to the structural parameters of the high-power-density thermoelectric conversion system motor;
b. processing the assembly part of the motor rotor assembly: b, processing an end cover shaft sleeve, an end cover shaft, a magnetic core, a sheath shaft and a sheath shaft sleeve according to the structural size parameters of the motor rotor assembly determined in the step a;
c. assembling the sheath shaft and the magnetic core: installing the magnetic core in the sleeve of the sheath shaft to ensure that the end surface of the magnetic core is attached to the bottom of the sleeve of the sheath shaft;
d. the assembly of end cover shaft, sheath shaft and magnetic core: installing the cylindrical boss of the end cover shaft in the sleeve of the sheath shaft, ensuring that the end face of the cylindrical boss of the end cover shaft is attached to the end face of the magnetic core, and welding the end cover shaft and the end cover shaft together by adopting a welding process along the cylindrical boss of the end cover shaft and the edge of the sleeve of the sheath shaft;
e. assembling the end cover shaft sleeve and the end cover shaft: installing the end cover shaft sleeve on the optical axis of the end cover shaft, so that one side of the end cover shaft sleeve is tightly attached to the annular groove of the end cover shaft, and the other side of the end cover shaft sleeve is tightly attached to the impeller or other components;
f. assembling the sheath shaft sleeve and the sheath shaft: installing the sheath shaft sleeve on the optical axis of the sheath shaft, so that one side of the sheath shaft sleeve is tightly attached to the annular groove of the sheath shaft, and the other side of the sheath shaft sleeve is tightly attached to the impeller or other components;
g. integral processing of the motor rotor: and processing the external dimension of the motor rotor after assembly according to the dimension and precision requirements of the motor rotor of the high-power-density thermoelectric conversion system.
The invention has the beneficial effects that:
according to the motor shaft structure of the high-power-density power generation system, the magnetic core adopts the solid rotating shaft, so that the strength of the motor rotor can be effectively improved, and the working reliability of the motor rotor is ensured; the end cover shaft sleeve and the end cover shaft as well as the sheath shaft sleeve and the sheath shaft are assembled, and the structure that the optical axis is matched with the through hole and the annular groove is matched with the end face is adopted, so that the integral rigidity of the motor rotor can be enhanced, the highest working rotating speed of the motor rotor is further improved, and the power density of the motor is improved; through holes are uniformly distributed on the cylindrical boss of the end cover shaft and the bottom of the sleeve of the sheath shaft along the circumferential direction, so that a magnetic core, the sheath shaft and the end cover shaft can be prevented from forming a closed cavity in the assembling process, the assembling quality is influenced, the weight of the motor rotor can be reduced, and the light weight of the motor rotor is realized; the end cover shaft, the end cover shaft and the magnetic core can be assembled together by adopting a welding process through welding the cylindrical boss of the end cover shaft and the edge of the sleeve of the sheath shaft, so that the motor rotor can be effectively prevented from loosening in the working process, and the working reliability of the motor rotor is improved. The outer size of the motor rotor is processed on the basis of assembly, so that the processing and manufacturing difficulty of the motor rotor can be reduced, and the dynamic balance precision of the motor rotor and the mounting precision between the motor rotor and parts such as a bearing and a stator are fully ensured.
Drawings
Fig. 1 is a schematic structural diagram of a motor shaft of a high power density power generation system.
Fig. 2 is a schematic view of an end cap shaft configuration.
Fig. 3 is a schematic view of a sheath shaft structure.
1 end cover shaft sleeve 2 end cover shaft 3 magnetic core 4 jacket shaft 5 end cover shaft 6 end cover shaft optical axis 7 end cover shaft annular groove 8 end cover shaft cylindrical boss 9 end cover shaft uniform distribution through hole 10 jacket shaft sleeve 11 jacket shaft uniform distribution through hole 12 jacket shaft annular groove 13 end cover shaft optical axis
Detailed Description
A motor shaft structure of a high-power-density power generation system comprises an end cover shaft sleeve 1, an end cover shaft 2, a magnetic core 3, a sheath shaft 4 and a sheath shaft sleeve 5, and is shown in figure 1. The outer side of the end cover shaft sleeve 1 is provided with a cylindrical surface matched with a bearing, one side end surface and the cylindrical surface of the end cover shaft sleeve 1 are matched with an annular groove 7 of the end cover shaft 2, and the center part of the end cover shaft sleeve 1 is provided with a through hole assembled with an optical axis 6 of the end cover shaft 2; a cylindrical boss 8 assembled with the magnetic core 3 and the sheath shaft 4 is arranged on one side of the end cover shaft 2, an annular groove 7 and an optical axis 6 assembled with the end cover shaft sleeve 1 are arranged on the other side of the end cover shaft 2, the optical axis 6 on the end cover shaft 2 can be assembled with an impeller part, and through holes 9 are uniformly distributed on the cylindrical boss 8 of the end cover shaft 2 along the circumferential direction, as shown in fig. 2; the magnetic core 3 is a solid cylinder, the magnetic core 3 is arranged in the sleeve 10 of the sheath shaft 4, and two ends of the magnetic core 3 are respectively attached to the bottom of the sleeve of the sheath shaft 4 and the end face of the cylindrical boss on the end cover shaft 2; one side of the sheath shaft 4 is provided with a magnetic core 3 and a sleeve 10 assembled with the cylindrical boss 8 of the end cover shaft 2, the other side of the sheath shaft 4 is provided with an annular groove 12 and an optical axis 13 assembled with the sheath shaft sleeve 5, the optical axis 13 of the sheath shaft 4 can be assembled with the impeller part, and the bottom of the sleeve of the sheath shaft 4 is uniformly provided with through holes 11 along the circumferential direction, as shown in fig. 3; the outer side of the sheath shaft sleeve 5 is provided with a cylindrical surface matched with a bearing, one side end surface and the cylindrical surface of the sheath shaft sleeve 5 are matched with an annular groove 12 of the sheath shaft 4, and the central part of the sheath shaft sleeve 5 is provided with a through hole assembled with the sheath shaft 4.
The assembly process of the motor rotor of the high-power-density thermoelectric conversion system comprises the following steps of:
a. determining the structural dimension parameters of the rotor assembly of the motor: according to the structural parameters of the high-power-density thermoelectric conversion system motor, determining the size parameters of the end cover shaft sleeve 1, the end cover shaft 2, the magnetic core 3, the sheath shaft 4 and the sheath shaft sleeve 5;
for example, the length of a certain motor rotor and stator assembling part is 140mm, the outer diameter is phi 45mm, according to the structural parameters of the motor rotor, the determined outer cylinder diameter of the end cover shaft sleeve 1 is phi 38mm, the through hole diameter is phi 12mm, the determined cylindrical boss diameter of the end cover shaft 2 is phi 38mm, the annular groove diameter is phi 38mm, and the uniformly distributed through hole diameter is phi 5mm, the determined magnetic core 3 diameter is phi 38mm and the length is 100mm, the determined sleeve 10 inner diameter of the sheath shaft 4 is phi 38mm, the determined outer diameter is phi 45mm, and the uniformly distributed through hole diameter is phi 5mm, the determined outer cylinder diameter of the sheath shaft sleeve is phi 38mm, and the determined through hole diameter is phi 12 mm.
b. Processing the assembly part of the motor rotor assembly: processing an end cover shaft sleeve 1, an end cover shaft 2, a magnetic core 3, a sheath shaft 4 and a sheath shaft sleeve 5 according to the structural size parameters of the motor rotor assembly determined in the step a;
c. assembling of the sheath shaft 4 and the magnetic core 3: installing the magnetic core 3 in the sleeve 10 of the sheath shaft 4, and ensuring that the end surface of the magnetic core 3 is attached to the bottom of the sleeve 10 of the sheath shaft 4;
d. and (3) assembling the end cover shaft 2 with the sheath shaft 4 and the magnetic core 3: installing the cylindrical boss 8 of the end cover shaft 2 in the sleeve 10 of the sheath shaft 4, ensuring that the end surface of the cylindrical boss 8 of the end cover shaft 2 is attached to the end surface of the magnetic core 3, and welding the end cover shaft 2 and the end cover shaft 4 together along the cylindrical boss of the end cover shaft 2 and the sleeve edge of the sheath shaft 4 by adopting a welding process;
e. assembling the end cover shaft sleeve 1 and the end cover shaft 2: the end cover shaft sleeve 1 is arranged on an optical axis 6 of the end cover shaft 2, so that one side of the end cover shaft sleeve 1 is tightly attached to an annular groove 7 of the end cover shaft 2, and the other side of the end cover shaft sleeve 1 is tightly attached to an impeller or other components;
f. assembling the sheath shaft sleeve 5 and the sheath shaft 4: installing a sheath shaft sleeve 5 on an optical axis 13 of a sheath shaft 4, so that one side of the sheath shaft sleeve 5 is tightly attached to an annular groove 12 of the sheath shaft 4, and the other side of the sheath shaft sleeve 5 is tightly attached to an impeller or other components;
g. integral processing of the motor rotor: and processing the external dimension of the motor rotor after assembly according to the dimension and precision requirements of the motor rotor of the high-power-density thermoelectric conversion system.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a high power density power generation system motor shaft structure which characterized in that: comprises an end cover shaft sleeve (1), an end cover shaft (2), a magnetic core (3), a sheath shaft (4) and a sheath shaft sleeve (5); the outer side of the end cover shaft sleeve (1) is provided with a cylindrical surface matched with a bearing, the end surface and the cylindrical surface of one side of the end cover shaft sleeve (1) are matched with an annular groove (7) of the end cover shaft (2), and the central part of the end cover shaft sleeve (1) is provided with a through hole assembled with an optical axis (6) of the end cover shaft (2); the magnetic core (3) is a solid cylinder, the magnetic core (3) is arranged in a sleeve (10) of the sheath shaft (4), and two ends of the magnetic core (3) are respectively attached to the bottom of the sleeve of the sheath shaft (4) and the end face of a cylindrical boss on the end cover shaft (2); the outer side of the sheath shaft sleeve (5) is provided with a cylindrical surface matched with a bearing, the end surface and the cylindrical surface on one side of the sheath shaft sleeve (5) are matched with an annular groove (12) of the sheath shaft (4), and the central part of the sheath shaft sleeve (5) is provided with a through hole assembled with the sheath shaft (4).
2. The high power density power generation system motor shaft structure of claim 1, wherein: one side of end cover axle (2) has cylindrical boss (8) with magnetic core (3) and sheath axle (4) assembly, the opposite side of end cover axle (2) has ring channel (7) and optical axis (6) with end cover axle sleeve (1) assembly, optical axis (6) on the end cover axle (2) can assemble with the impeller part mutually, there are through-hole (9) along the circumference equipartition on cylindrical boss (8) of end cover axle (2).
3. The high power density power generation system motor shaft structure of claim 1, wherein: one side of sheath axle (4) has installation magnetic core (3) and sleeve (10) of assembling mutually with cylindrical boss (8) of end cover axle (2), the opposite side of sheath axle (4) has ring channel (12) and optical axis (13) of assembling with sheath axle sleeve (5), optical axis (13) of sheath axle (4) can assemble mutually with the impeller part, the sleeve bottom of sheath axle (4) has through-hole (11) along the circumference equipartition.
4. The assembly process of the motor shaft structure of the high power density power generation system according to claim 1, comprising the steps of:
a. determining structural dimension parameters of a motor rotor assembly;
b. processing an assembly part of the motor rotor assembly;
d. the end cover shaft (2) is assembled with the sheath shaft (4) and the magnetic core (3);
e. assembling the end cover shaft sleeve (1) and the end cover shaft (2);
f. assembling the sheath shaft sleeve (5) and the sheath shaft (4);
g. and (5) integral processing of the motor rotor.
5. The assembly process of claim 3, wherein: in the step d, the cylindrical boss (8) of the end cover shaft (2) is arranged in the sleeve (10) of the sheath shaft (4), the end face of the cylindrical boss (8) of the end cover shaft (2) is ensured to be attached to the end face of the magnetic core (3), and the end cover shaft (2) and the end cover shaft (4) are welded together along the cylindrical boss of the end cover shaft (2) and the sleeve edge of the sheath shaft (4) by adopting a welding process;
6. the assembly process of claim 3, wherein: in the step e, the cylindrical boss (8) of the end cover shaft (2) is arranged in the sleeve (10) of the sheath shaft (4), the end face of the cylindrical boss (8) of the end cover shaft (2) is ensured to be attached to the end face of the magnetic core (3), and the end cover shaft (2) and the end cover shaft (4) are welded together along the cylindrical boss of the end cover shaft (2) and the sleeve edge of the sheath shaft (4) by adopting a welding process;
7. the assembly process of claim 3, wherein: and in the step f, the cylindrical boss (8) of the end cover shaft (2) is arranged in the sleeve (10) of the sheath shaft (4), the end face of the cylindrical boss (8) of the end cover shaft (2) is ensured to be attached to the end face of the magnetic core (3), and the end cover shaft (2) and the end cover shaft (4) are welded together along the cylindrical boss of the end cover shaft (2) and the sleeve edge of the sheath shaft (4) by adopting a welding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011154673.4A CN112332597B (en) | 2020-10-26 | 2020-10-26 | Motor shaft structure and process of high-power-density power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011154673.4A CN112332597B (en) | 2020-10-26 | 2020-10-26 | Motor shaft structure and process of high-power-density power generation system |
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| Publication Number | Publication Date |
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| CN112332597A true CN112332597A (en) | 2021-02-05 |
| CN112332597B CN112332597B (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011154673.4A Active CN112332597B (en) | 2020-10-26 | 2020-10-26 | Motor shaft structure and process of high-power-density power generation system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08334117A (en) * | 1995-05-12 | 1996-12-17 | Capstone Turbine Corp | Composite shaft |
| US20050099079A1 (en) * | 2003-11-10 | 2005-05-12 | Calnetix | Permanent magnet rotor construction wherein relative movement between components is prevented |
| CN205283280U (en) * | 2016-01-11 | 2016-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent -magnet machine pivot structure |
| CN110344890A (en) * | 2019-07-18 | 2019-10-18 | 北京动力机械研究所 | A kind of high reliability turbine electricity generation system rotor structure and manufacturing process |
| CN111478472A (en) * | 2020-05-20 | 2020-07-31 | 北京稳力科技有限公司 | Rotor structure and motor and air compressor adopting same |
-
2020
- 2020-10-26 CN CN202011154673.4A patent/CN112332597B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08334117A (en) * | 1995-05-12 | 1996-12-17 | Capstone Turbine Corp | Composite shaft |
| US20050099079A1 (en) * | 2003-11-10 | 2005-05-12 | Calnetix | Permanent magnet rotor construction wherein relative movement between components is prevented |
| CN205283280U (en) * | 2016-01-11 | 2016-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent -magnet machine pivot structure |
| CN110344890A (en) * | 2019-07-18 | 2019-10-18 | 北京动力机械研究所 | A kind of high reliability turbine electricity generation system rotor structure and manufacturing process |
| CN111478472A (en) * | 2020-05-20 | 2020-07-31 | 北京稳力科技有限公司 | Rotor structure and motor and air compressor adopting same |
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| Publication number | Publication date |
|---|---|
| CN112332597B (en) | 2022-11-18 |
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