CN215870950U - Large-scale high-speed asynchronous motor rotor - Google Patents
Large-scale high-speed asynchronous motor rotor Download PDFInfo
- Publication number
- CN215870950U CN215870950U CN202122056865.8U CN202122056865U CN215870950U CN 215870950 U CN215870950 U CN 215870950U CN 202122056865 U CN202122056865 U CN 202122056865U CN 215870950 U CN215870950 U CN 215870950U
- Authority
- CN
- China
- Prior art keywords
- rotor core
- pressing
- holes
- pressing plates
- rotor
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Induction Machinery (AREA)
Abstract
The utility model relates to the technical field of asynchronous motors, in particular to a large-scale high-speed asynchronous motor rotor which comprises a rotor core, a first pressing plate, a second pressing plate and a copper ring, wherein the rotor core is arranged on the rotor core; an axial through hole is formed in the center of the rotor core, and a plurality of compression holes are formed beside the axial through hole; the first pressing plates are arranged at two ends of the rotor core, threaded holes corresponding to the pressing holes are formed in the first pressing plates, bolts penetrating through the pressing holes and the threaded holes are arranged between the first pressing plates at the two ends of the rotor core and used for locking and fixing, and notches which are arranged at intervals are further formed in the edge of the first pressing plates and used for placing copper cores; according to the utility model, the rotor core is provided with the plurality of pressing holes, and the rotor core is pressed and fixed by matching with the first pressing plates arranged at two ends and the bolts penetrating through the first pressing plates, so that the assembly requirements of key parts on concentricity and perpendicularity are ensured; the strength of the rotor core is ensured to meet the requirement of high-speed operation, and the stability of the high-speed asynchronous motor during operation is ensured.
Description
Technical Field
The utility model relates to the technical field of asynchronous motors, in particular to a large-scale high-speed asynchronous motor rotor.
Background
Asynchronous motors are the common motor types in industrial application at present, and occupy an important place in the development process of high-speed motors. The traditional squirrel-cage asynchronous motor rotor consists of three parts, namely a rotor core, a squirrel-cage conducting bar, an end ring and a rotating shaft. The rotor iron core is formed by laminating high-permeability silicon steel sheets and is used as a main closed loop of main magnetic flux on the rotor side; the squirrel cage conducting bars and the end rings are made of high-conductivity materials, such as copper-aluminum alloy and the like, and are used as a main closed loop of the rotor induced current.
However, in the application of the existing high-speed asynchronous motor, the traditional laminated asynchronous motor needs to be improved in many aspects, firstly, the conventional laminated structure cannot bear the centrifugal force caused by high speed, and a high-strength laminated material needs to be selected; meanwhile, the lamination structure cannot provide enough axial bending strength, and the critical rotating speed of the whole shafting of the rotor is low; and the welding structure strength of the conducting bar and the end ring is low, and the welding surface is easy to fall off and break when the welding machine runs at high speed, so that safety accidents are caused.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, the utility model aims to provide a large-sized high-speed asynchronous motor rotor which can meet the requirement of the motor during high-speed operation.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a large high speed asynchronous motor rotor comprising:
the rotor comprises a rotor core, wherein an axial through hole is formed in the center of the rotor core, and a plurality of compression holes which are circumferentially arranged at intervals are formed beside the axial through hole;
the first pressing plates are arranged at two ends of the rotor core, threaded holes corresponding to the pressing holes are formed in the first pressing plates, bolts penetrating through the pressing holes and the threaded holes are arranged between the first pressing plates at the two ends of the rotor core and used for locking and fixing, and concave parts arranged at intervals are further arranged on the edges of the first pressing plates and used for placing copper cores;
the second pressing plate is arranged on one side, far away from the rotor core, of the first pressing plate;
the copper ring is arranged on the outer side of the second pressing plate;
wherein, the copper rings at the two ends are provided with grooves with openings pointing to opposite directions for clamping and fixing the copper core.
In a further technical scheme, the outer side of the second pressure plate is inwards recessed to form a step part, and the inner groove wall of the groove abuts against the step part.
In a further technical scheme, 8 compression holes in the rotor core are uniformly arranged at intervals.
Compared with the prior art, the utility model has the following technical effects:
1. according to the large-scale high-speed asynchronous motor rotor provided by the utility model, the rotor core is provided with the plurality of pressing holes, and the rotor core is pressed and fixed by matching with the first pressing plates arranged at two ends and the bolts penetrating through the first pressing plates, so that the assembly requirements of key parts on concentricity and perpendicularity are ensured; and the strength of the rotor core is ensured to meet the requirement during high-speed operation, and the stability during the operation of the high-speed asynchronous motor is further ensured.
2. The large-scale high-speed asynchronous motor rotor provided by the utility model fully utilizes the internal space of parts, and the two ends of the copper core 50 are fixed by copper rings, so that the structure is simple, the processing and the manufacturing are convenient, the material is saved, and the installation is convenient.
3. The rotor structure provided by the utility model can meet the design requirements of the rotors of similar large-scale high-speed asynchronous motors and save time for the design of similar products.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
Fig. 1 is a schematic structural diagram of a rotor of a large high-speed asynchronous motor according to an embodiment of the utility model;
FIG. 2 is an enlarged schematic view of position A of FIG. 1;
FIG. 3 is a cross-sectional view of a rotor of a large high-speed asynchronous motor according to the present invention;
FIG. 4 is a schematic end view of a large high-speed asynchronous motor rotor according to the present invention;
FIG. 5 is a schematic view showing the structure of a copper ring according to the present invention;
the reference numbers in the figures illustrate: 10-rotor core, 11-axial through hole, 12-compression hole, 20-first pressing plate, 21-threaded hole, 30-second pressing plate, 31-step part, 40-copper ring, 41-groove and 50-copper core.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further clarified by combining the specific drawings.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As described above, referring to fig. 1 to 5, the present invention provides a large-sized high-speed asynchronous motor rotor, which includes a rotor core 10, a first pressing plate 20, a second pressing plate 30, and a copper ring 40; an axial through hole 11 is formed in the center of the rotor core 10, and a plurality of compression holes 12 which are circumferentially arranged at intervals are formed beside the axial through hole 11;
the first pressing plates 20 are arranged at two ends of the rotor core 10, threaded holes 21 corresponding to the pressing holes 12 are formed in the first pressing plates 20, bolts penetrating through the pressing holes 12 and the threaded holes 21 are arranged between the first pressing plates 20 at the two ends of the rotor core 10 and used for locking and fixing, and notches which are arranged at intervals are further formed in the edges of the first pressing plates and used for placing copper cores 50;
the second pressing plate 30 is arranged on one side of the first pressing plate 20 far away from the rotor core 10;
the copper ring 40 is arranged outside the second pressing plate 30; wherein, the copper rings 40 at two ends are provided with grooves 41 with openings pointing to opposite directions for clamping and fixing the copper core 50.
In the technical scheme provided by the utility model, the adjacent parts of the first pressure plate 20 and the second pressure plate 30 are welded into a whole; the rotor core 10 is pressed and fixed by arranging a plurality of pressing holes 12 on the rotor core 10, matching with first pressing plates 20 arranged at two ends and bolts penetrating through the first pressing plates 20, so that the assembly requirements of key parts on concentricity and perpendicularity are ensured; and, the strength of the rotor core 10 is ensured to meet the requirement during high-speed operation, and the stability during operation of the high-speed asynchronous motor is ensured.
In addition, the rotor structure provided by the utility model fully utilizes the internal space of parts, and the two ends of the copper core 50 are fixed by the copper rings 40, so that the structure is simple, the processing and the manufacturing are convenient, the material is saved, and the installation is convenient.
Further, in the present invention, the outer side of the second pressure plate 30 is recessed inward to form a step 31, and the inner groove wall of the groove 41 abuts against the step 31.
Further, in the present invention, in order to secure the pressing effect on the rotor core 10, 8 pressing holes 12 are provided in the rotor core 10 at regular intervals.
The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (3)
1. A large high speed asynchronous motor rotor comprising:
the rotor comprises a rotor core (10), wherein an axial through hole (11) is formed in the center of the rotor core (10), and a plurality of compression holes (12) which are circumferentially arranged at intervals are formed beside the axial through hole (11);
the first pressing plates (20) are arranged at two ends of the rotor core (10), threaded holes (21) corresponding to the pressing holes (12) are formed in the first pressing plates (20), bolts penetrating through the pressing holes (12) and the threaded holes (21) are arranged between the first pressing plates (20) located at two ends of the rotor core (10) and used for locking and fixing, and concave parts arranged at intervals are further arranged at the edges of the first pressing plates and used for placing copper cores (50);
the second pressure plate (30) is arranged on one side, far away from the rotor core (10), of the first pressure plate (20);
a copper ring (40) disposed outside the second presser plate (30);
wherein, the copper rings (40) at the two ends are provided with grooves (41) with openings pointing to opposite directions for clamping and fixing the copper core (50).
2. A large high-speed asynchronous motor rotor according to claim 1, characterized in that the outside of the second pressure plate (30) is recessed inwards to form a step (31), and the inner groove wall of the groove (41) abuts against the step (31).
3. A large-sized high-speed asynchronous motor rotor according to claim 1, characterized in that the number of the compression holes (12) on the rotor core (10) is 8 at regular intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122056865.8U CN215870950U (en) | 2021-08-27 | 2021-08-27 | Large-scale high-speed asynchronous motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122056865.8U CN215870950U (en) | 2021-08-27 | 2021-08-27 | Large-scale high-speed asynchronous motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215870950U true CN215870950U (en) | 2022-02-18 |
Family
ID=80243692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122056865.8U Active CN215870950U (en) | 2021-08-27 | 2021-08-27 | Large-scale high-speed asynchronous motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215870950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114825804A (en) * | 2022-06-29 | 2022-07-29 | 南京宇众自动化装备有限公司 | Asynchronous machine rotor copper billet assembly quality |
-
2021
- 2021-08-27 CN CN202122056865.8U patent/CN215870950U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114825804A (en) * | 2022-06-29 | 2022-07-29 | 南京宇众自动化装备有限公司 | Asynchronous machine rotor copper billet assembly quality |
| CN114825804B (en) * | 2022-06-29 | 2022-11-08 | 南京宇众自动化装备有限公司 | Asynchronous machine rotor copper billet assembly quality |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101557149B (en) | Rotor structure of high-speed induction motor | |
| CN215870950U (en) | Large-scale high-speed asynchronous motor rotor | |
| CN104734447A (en) | Hybrid magnetic circuit permanent magnetic synchronous motor and solid rotor structure thereof | |
| CN102142758A (en) | Cage rotor of self-starting permanent magnet synchronous motor | |
| CN104795909A (en) | High-speed electric machine electromagnetism structure for air compressor | |
| CN102142755A (en) | V-shaped slot rotor of self-starting permanent magnet synchronous motor | |
| CN103607091B (en) | A kind of four-pole permanent magnet synchronous electric motor rotor | |
| CN202949340U (en) | Inclined magnetic brushless DC motor | |
| CN203589985U (en) | Quadrupole permanent magnet synchronous motor rotor | |
| CN206595871U (en) | A kind of magnetic structure of permanent-magnet synchronous brushless electric machine | |
| CN215941975U (en) | Motor rotor welding tool | |
| CN202455171U (en) | Split magnetic suspension motor | |
| CN202004553U (en) | V-shaped groove rotor of self-starting permanent magnet synchronous motor | |
| CN113726045A (en) | Motor rotor and self-starting synchronous reluctance motor | |
| CN201570925U (en) | Rotor structure for 12-pole permanent magnetic submersible motor | |
| CN114421669A (en) | Rotor magnetic steel sheet, rotor oblique pole unit and oblique pole type rotor | |
| CN211481018U (en) | Rotor punching sheet, rotor and permanent magnet direct drive motor | |
| CN213072238U (en) | Rotor structure of permanent magnet motor | |
| CN206992821U (en) | Moving load with high speed rotor structure and the motor comprising the rotor structure | |
| CN214124973U (en) | Rotor punching sheet of asynchronous starting permanent magnet motor and asynchronous starting permanent magnet motor rotor | |
| KR100434289B1 (en) | rotor of squirrel cage induction motor | |
| CN216056524U (en) | Motor rotor and self-starting synchronous reluctance motor | |
| CN102487236B (en) | Rotor of permanent magnet synchronous motor | |
| CN205725185U (en) | Stator and there is its motor | |
| CN104753297A (en) | Permanent magnetic synchronous motor and solid-like rotor structure thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |