CN210517921U - Solid rotor structure of high-speed motor - Google Patents
Solid rotor structure of high-speed motor Download PDFInfo
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- CN210517921U CN210517921U CN201921797214.0U CN201921797214U CN210517921U CN 210517921 U CN210517921 U CN 210517921U CN 201921797214 U CN201921797214 U CN 201921797214U CN 210517921 U CN210517921 U CN 210517921U
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Abstract
The utility model discloses a solid rotor structure of high-speed motor, including rotor shaft and wear to locate rotor shaft's rotor body, rotor body and rotor shaft integrated into one piece, rotor body comprises cylinder portion and the round platform portion of locating cylinder portion both ends, cylinder portion and the coaxial setting of round platform portion and cylinder portion diameter are greater than the diameter of bottom surface under the round platform portion, the diameter of bottom surface is greater than the diameter of rotor shaft on the round platform portion, circumference evenly is equipped with the guide slot on rotor body's the outer circumference, be equipped with the conducting bar of looks adaptation with it in the guide slot, rotor body's both ends are equipped with the toper inner end links with round platform portion adaptation, the outside of toper inner end links is equipped with outer end links.
Description
Technical Field
The utility model relates to an asynchronous motor field, concretely relates to high-speed motor solid rotor structure.
Background
The asynchronous motor is an alternating current motor which generates electromagnetic torque by interaction of an air gap rotating magnetic field and induction current of a rotor winding, thereby realizing conversion of electromechanical energy into mechanical energy. In the application of various motors, the demand of asynchronous motors is large. At present, the application of an asynchronous motor tends to be high-speed and small, however, when the asynchronous motor rotates at a high speed and a long distance, the conducting bars and the rotor end rings of the asynchronous motor are acted by centrifugal force, the conducting bars and the rotor end rings are prone to fracture and failure, and when the asynchronous motor rotates at a high speed and a long distance, the fractured conducting bars can fly out to scratch a stator and damage the insulation of the stator, so that the stator is short-circuited, and the motor is burnt and damaged.
The high-speed motor is generally a motor with the rotating speed of more than 10000r/min, and the high-speed motor has high rotating speed, high power density and small volume, can be directly connected with a load, saves a gearbox, can reduce the occupied area of equipment and improves the system efficiency. Therefore, the development and utilization of high-speed motors are a relatively hot direction in the international electrotechnical field. The rotor speed of the high-speed asynchronous motor can reach thousands of revolutions, and the end ring and the conducting bar of the rotor bear huge centrifugal force at the revolution speed, so the structural reliability of the rotor is the key of the success or failure of the development of the high-speed motor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome prior art's defect, provide a solid rotor structure of high-speed motor.
Based on the above-mentioned purpose, the utility model discloses take following technical scheme:
the utility model provides a solid rotor structure of high-speed motor, including rotor shaft and wear to locate the epaxial rotor body of rotor shaft, rotor body and rotor shaft integrated into one piece, rotor body comprises cylinder portion and the round platform portion of locating cylinder portion both ends, cylinder portion and the coaxial setting of round platform portion and cylinder portion diameter are greater than the diameter of bottom surface under the round platform portion, the diameter of bottom surface is greater than the diameter of rotor shaft on the round platform portion, circumference evenly is equipped with the guide slot on rotor body's the outer circumference, be equipped with the conducting bar of looks adaptation with it in the guide slot, rotor body's both ends are equipped with the toper inner end link with round platform portion adaptation, the outside of toper inner end link is equipped with.
Further, the included angle between the inclined plane of the circular table part of the rotor body and the horizontal plane is 30 degrees.
Furthermore, the conical inner end ring guide bars are made of chromium, zirconium and copper; the rotor rotating shaft, the rotor body and the outer end ring are made of 25Cr2Ni4 MoV.
Furthermore, the rotor body, the guide bars, the conical inner end ring and the outer end ring are connected into a whole by adopting diffusion welding.
The prior art adopts an integrated structure of an outer end ring and a rotor body, and a welding structure of vertical butt joint of an inner end ring and a rotor guide bar requires that the outer end ring is of a half-split structure, the welding reliability of the outer end ring is poor, the contact area between the outer end ring and the rotor guide bar is small, the welding reliability is poor, and the conductive area is small.
The invention has the beneficial effects that: the outer end ring adopts an integral structure, so that the problem of self welding reliability during welding of a split structure does not exist; the outer end ring is in inclined surface contact with the guide bars and the rotor iron core, the contact area is far larger than that of the outer end ring in vertical butt joint with the rotor guide bars, the welding reliability is high, and the current transmission capacity is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic structural view of a tapered inner end ring.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A solid rotor structure of a high-speed motor is disclosed, as shown in fig. 1 to 3, comprising a rotor rotating shaft 1 and a rotor body 4 arranged on the rotor rotating shaft 1 in a penetrating way, wherein the rotor body 4 and the rotor rotating shaft 1 are integrally formed, the rotor body 4 is composed of a cylindrical part and circular truncated cones arranged at two ends of the cylindrical part, the cylindrical part and the circular truncated cones are coaxially arranged, the diameter of the cylindrical part is larger than that of the lower bottom surface of the circular truncated cones, the diameter of the upper bottom surface of the circular truncated cones is larger than that of the rotor rotating shaft 1, guide grooves are uniformly arranged on the outer circumference of the rotor body 4 in the circumferential direction, the depth of each guide groove is 60mm, the width of each guide groove is 9mm, guide bars 5 matched with the guide grooves are arranged in the guide grooves, two ends of the.
The included angle α between the inclined plane of the circular table part of the rotor body 4 and the horizontal plane is 30 degrees.
The material of the guide bar of the conical inner end ring 3 is chromium-zirconium-copper (namely CuCr1 Zr); the rotor rotating shaft 1, the rotor body 4 and the outer end ring are made of high-strength alloy steel forgings 25Cr2Ni4 MoV.
The rotor body 4, the guide bars 5, the conical inner end ring 3 and the outer end ring 2 are connected into a whole by adopting diffusion welding.
After the steps are finished, hot isostatic pressing diffusion welding is integrally carried out, wherein the welding temperature is 800-.
Claims (4)
1. The utility model provides a solid rotor structure of high-speed motor, including rotor shaft and wear to locate the epaxial rotor body of rotor shaft, a serial communication port, rotor body and rotor shaft integrated into one piece, rotor body comprises cylinder portion and the round platform portion of locating cylinder portion both ends, cylinder portion and the coaxial setting of round platform portion and cylinder portion diameter are greater than the diameter of bottom surface under the round platform portion, the diameter of bottom surface is greater than the diameter of rotor shaft on the round platform portion, circumference evenly is equipped with the guide slot on rotor body's the outer circumference, be equipped with the conducting bar of looks adaptation with it in the guide slot, rotor body's both ends are equipped with the toper inner end link with round platform portion adaptation, the outside of toper inner end link is equipped.
2. The high speed electric motor solid rotor structure of claim 1, wherein said rotor body dome ramp is angled 30 ° from horizontal.
3. The solid rotor structure of the high-speed motor according to claim 1, wherein the conical inner end ring guide bars are made of chromium, zirconium and copper; the rotor rotating shaft, the rotor body and the outer end ring are made of 25Cr2Ni4 MoV.
4. The solid rotor structure of high-speed motor as claimed in claim 1, wherein the rotor body, the conducting bars, the tapered inner end ring and the outer end ring are integrally connected by diffusion welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921797214.0U CN210517921U (en) | 2019-10-24 | 2019-10-24 | Solid rotor structure of high-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921797214.0U CN210517921U (en) | 2019-10-24 | 2019-10-24 | Solid rotor structure of high-speed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210517921U true CN210517921U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921797214.0U Active CN210517921U (en) | 2019-10-24 | 2019-10-24 | Solid rotor structure of high-speed motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210517921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792423A (en) * | 2021-04-07 | 2021-05-14 | 陕西斯瑞新材料股份有限公司 | Method for preparing CT bulb tube rotor copper sleeve by combining vacuum diffusion welding with vacuum brazing |
-
2019
- 2019-10-24 CN CN201921797214.0U patent/CN210517921U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792423A (en) * | 2021-04-07 | 2021-05-14 | 陕西斯瑞新材料股份有限公司 | Method for preparing CT bulb tube rotor copper sleeve by combining vacuum diffusion welding with vacuum brazing |
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