CN216564753U - High-speed motor based on double-ball bearing structure - Google Patents
High-speed motor based on double-ball bearing structure Download PDFInfo
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- CN216564753U CN216564753U CN202122080329.1U CN202122080329U CN216564753U CN 216564753 U CN216564753 U CN 216564753U CN 202122080329 U CN202122080329 U CN 202122080329U CN 216564753 U CN216564753 U CN 216564753U
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Abstract
The utility model relates to the technical field of motors, in particular to a high-speed motor based on a double-ball bearing structure, which comprises a shell, a rotating shaft assembly arranged in the shell, a magnetic ring arranged in the rotating shaft assembly, a stator assembly arranged in the shell and positioned on the outer edge of the magnetic ring, and fan blades connected to the rotating shaft assembly, wherein the rotating shaft assembly is arranged in the shell; the shell comprises a placing cavity arranged in the middle and an air channel arranged on the outer edge of the placing cavity, the rotating shaft assembly comprises an installing external member, bearings arranged at two ends of the installing external member and a rotating shaft rotatably connected to the bearings, the rotating shaft is sleeved with the magnetic ring and used for driving the rotating shaft to rotate, the installing external member comprises a front end part and a rear end part, a clearance groove is formed between the front end part and the rear end part, and the magnetic ring corresponds to the clearance groove. The utility model effectively reduces the common-frequency vibration caused by the high-speed rotation of the bearing in the XYZ three-axis direction, and effectively reduces the unbalance phenomenon of the rotating shaft in the transmission process.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a high-speed motor based on a double-ball bearing structure.
Background
At present, the rotating speed of the existing high-speed fan motor in the market is very high (the rotating speed is as high as more than 100000 rpm) when in work, so the requirement on the dynamic balance precision of a rotor is very strict. However, the rotor of the existing high-speed fan motor is easy to generate large rotor vibration and large noise under ultrahigh rotating speed due to overlarge dynamic balance, the performance is extremely unstable, and even bearing abrasion is caused, so that the service life of the motor is greatly shortened.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides the high-speed motor based on the double-ball bearing structure, which effectively reduces the common-frequency vibration caused by the high-speed rotation of the bearing in the XYZ three-axis directions and effectively reduces the unbalance phenomenon of the rotating shaft in the transmission process.
The technical scheme adopted by the utility model is as follows: the utility model provides a high-speed motor based on two ball bearing structures which characterized in that: comprises a shell, a rotating shaft component arranged in the shell, a magnetic ring arranged on the rotating shaft component, a stator component arranged in the shell and positioned on the outer edge of the magnetic ring, and fan blades connected with the rotating shaft component; the shell comprises a placing cavity arranged in the middle and an air channel arranged on the outer edge of the placing cavity, the rotating shaft assembly comprises an installing external member, bearings arranged at two ends of the installing external member and a rotating shaft rotatably connected to the bearings, the rotating shaft is sleeved with the magnetic ring and used for driving the rotating shaft to rotate, the installing external member comprises a front end part and a rear end part, a clearance groove is formed between the front end part and the rear end part, and the magnetic ring corresponds to the clearance groove.
In a further improvement of the scheme, the shell is integrally formed by zinc alloy.
The further improvement to the above scheme is that the mounting cavity comprises a rotating shaft fixing part and a stator fixing part, the rotating shaft assembly is connected to the rotating shaft fixing part, and the stator assembly is provided with the stator fixing part.
The further improvement of the proposal is that one surface of the mounting cavity corresponding to the fan blades is provided with at least one negative pressure air inlet.
The fan blade is communicated with the mounting cavity through the negative pressure air inlet.
In a further improvement of the above solution, the negative pressure inlet is communicated to the stator fixing portion.
The further improvement of the scheme is that the front end part is connected with the arrangement cavity, the rear end part is connected with a fixed support, and the fixed support is connected with the stator assembly.
The further improvement to the above scheme is that the front end part is provided with a front end necking part, the rear end part is provided with a rear end necking part, and the front end necking part and the rear end necking part are sleeved with the stator assembly.
The further improvement to the above scheme is that the stator assembly comprises a stator framework and a stator core sleeved on the stator framework, and the rotating shaft assembly is sleeved on the stator framework.
The fan blade is a copper alloy fan blade, and a plurality of groups of blades are annularly arranged on the fan blade.
The utility model has the beneficial effects that:
compared with the traditional high-speed motor, the installation kit is sealed at the front end part and the rear end part, and the clearance groove is reserved between the installation kit and the front end part and the rear end part, so that the magnetic ring and the stator assembly are matched to stably work, and the structure is stable and reliable; the shell comprises a placing cavity arranged in the middle and an air channel arranged on the outer edge of the placing cavity, the rotating shaft assembly comprises an installing external member, bearings arranged at two ends of the installing external member and a rotating shaft rotatably connected to the bearings, the rotating shaft is sleeved with the magnetic ring and used for driving the rotating shaft to rotate, the installing external member comprises a front end part and a rear end part, a clearance groove is formed between the front end part and the rear end part, and the magnetic ring corresponds to the clearance groove. In actual work, common-frequency vibration caused by high-speed rotation of the bearing in the XYZ three-axis direction is effectively reduced, and unbalance of a rotating shaft in a transmission process is effectively reduced.
Drawings
FIG. 1 is a schematic perspective view of a high-speed motor according to the present invention;
FIG. 2 is an exploded view of the high speed motor of FIG. 1;
FIG. 3 is a schematic diagram of a partially exploded view of the high speed motor of FIG. 1;
FIG. 4 is a schematic front view of the high speed motor shown in FIG. 1;
fig. 5 is a cross-sectional view a-a of fig. 4.
Description of the reference numerals: the air-cooling fan comprises a shell 1, a mounting cavity 11, a rotating shaft fixing part 111, a stator fixing part 112, a negative pressure air inlet 113, an air duct 12, a rotating shaft assembly 2, a mounting kit 21, a front end part 211, a front end necking part 211a, a rear end part 212, a fixing support 212a, a rear end necking part 212b, a clearance groove 213, a bearing 22, a rotating shaft 23, a magnetic ring 3, a stator assembly 4, a stator framework 41, a stator core 42 and fan blades 5.
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
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.
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 in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
As shown in fig. 1 to 5, a high-speed motor based on a double-ball bearing structure comprises a housing 1, a rotating shaft assembly 2 arranged in the housing 1, a magnetic ring 3 arranged in the rotating shaft assembly 2, a stator assembly 4 arranged in the housing 1 and located at the outer edge of the magnetic ring 3, and fan blades 5 connected to the rotating shaft assembly 2; the housing 1 comprises a mounting cavity 11 arranged in the center and an air duct 12 arranged on the outer edge of the mounting cavity 11, the rotating shaft assembly 2 comprises a mounting sleeve 21, bearings 22 arranged at two ends of the mounting sleeve 21 and a rotating shaft 23 rotatably connected to the bearings 22, the rotating shaft 23 is sleeved with the magnetic ring 3 and used for driving the rotating shaft 23 to rotate, the mounting sleeve 21 comprises a front end portion 211 and a rear end portion 212, a clearance groove 213 is arranged between the front end portion 211 and the rear end portion 212, and the magnetic ring 3 corresponds to the clearance groove 213.
The shell 1 is integrally formed by zinc alloy, and is manufactured and formed by integrally processing, casting or other modes of the zinc alloy, so that the structure is reliable, and the practicability is high.
Referring to fig. 3, in an embodiment, the high speed motor includes a housing 1, a rotating shaft assembly 2 disposed in the housing 1, a magnetic ring 3 disposed on the rotating shaft assembly 2, a stator assembly 4 disposed in the housing 1 and located at an outer edge of the magnetic ring 3, and a fan blade 5 connected to the rotating shaft assembly 2; the shell 1 is including the arrangement chamber 11 that sets up between two parties, and locate the wind channel 12 of arranging chamber 11 outer edge, it is equipped with at least one negative pressure air inlet 113 to arrange chamber 11 and correspond flabellum 5 one side, negative pressure air inlet 113 communicates flabellum 5 with arrangement chamber 11, negative pressure air inlet 113 communicates to stator fixed part 112, the effect sets up a plurality of negative pressure air intakes, bring the negative pressure effect by the high-speed rotation of flabellum 5, accessible negative pressure air inlet 113 gives stator module 4 air current, thereby can discharge the heat from the afterbody, play the radiating action.
The front end 211 is connected to the installation cavity 11, the rear end 212 is connected to the fixing bracket 212a, the fixing bracket 212a is connected to the stator assembly 4, the improvement is that the front end 211 is provided with a front end necking part 211a, the rear end 212 is provided with a rear end necking part 212b, the stator assembly 4 is sleeved on the front end necking part 211a and the rear end necking part 212b, and the rotating shaft assembly 2 is connected with the shell 1 and the stator assembly 4 through the front end 211 and the rear end 212, so that the whole structure is stable in connection and stable and reliable in the working process.
The stator assembly 4 comprises a stator framework 41 and a stator core 42 sleeved on the stator framework 41, the rotating shaft assembly 2 is sleeved on the stator framework 41, and the stator core 42 is matched with the magnetic ring 3 to realize the rotation driving effect of the high-speed motor.
The fan blade 5 is a copper alloy fan blade 5 and is provided with a plurality of groups of blades in the circumferential direction, the fan blade 5 is a copper alloy turbine air pressure fan, and a copper alloy 21.176-degree turbine air pressure fan is adopted.
The mounting sleeve 21 is sealed into the front end part 211 and the rear end part 212, and the clearance groove 213 is reserved between the front end part 211 and the rear end part 212, so that the magnetic ring 3 and the stator assembly 4 are matched to stably work, and the structure is stable and reliable, specifically, the mounting sleeve is provided with a shell 1, a rotating shaft assembly 2 arranged in the shell 1, the magnetic ring 3 arranged on the rotating shaft assembly 2, the stator assembly 4 arranged in the shell 1 and positioned at the outer edge of the magnetic ring 3, and fan blades 5 connected to the rotating shaft assembly 2; the housing 1 comprises a mounting cavity 11 arranged in the center and an air duct 12 arranged on the outer edge of the mounting cavity 11, the rotating shaft assembly 2 comprises a mounting sleeve 21, bearings 22 arranged at two ends of the mounting sleeve 21 and a rotating shaft 23 rotatably connected to the bearings 22, the rotating shaft 23 is sleeved with the magnetic ring 3 and used for driving the rotating shaft 23 to rotate, the mounting sleeve 21 comprises a front end portion 211 and a rear end portion 212, a clearance groove 213 is arranged between the front end portion 211 and the rear end portion 212, and the magnetic ring 3 corresponds to the clearance groove 213. In practical work, common-frequency vibration caused by high-speed rotation of the bearing 22 in the directions of the three axes XYZ is effectively reduced, and unbalance of the rotating shaft 23 in the transmission process is effectively reduced.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a high-speed motor based on two ball bearing structures which characterized in that: comprises a shell, a rotating shaft component arranged in the shell, a magnetic ring arranged on the rotating shaft component, a stator component arranged in the shell and positioned on the outer edge of the magnetic ring, and fan blades connected with the rotating shaft component; the magnetic ring is sleeved on the rotating shaft and used for driving the rotating shaft to rotate, the mounting external member comprises a front end part and a rear end part, a clearance groove is formed between the front end part and the rear end part, and the magnetic ring corresponds to the clearance groove.
2. The high-speed motor based on a double ball bearing structure according to claim 1, wherein: the shell is integrally formed by zinc alloy.
3. The high-speed motor based on a double ball bearing structure according to claim 1, wherein: the mounting cavity comprises a rotating shaft fixing part and a stator fixing part, the rotating shaft assembly is connected to the rotating shaft fixing part, and the stator assembly is provided with the stator fixing part.
4. The high-speed motor based on a double ball bearing structure according to claim 1, wherein: at least one negative pressure air inlet is arranged on one surface of the mounting cavity corresponding to the fan blades.
5. The high-speed motor based on a double ball bearing structure according to claim 4, wherein: the negative pressure air inlet is communicated with the fan blade and the mounting cavity.
6. The high-speed motor based on a double ball bearing structure according to claim 5, wherein: the negative pressure air inlet is communicated to the stator fixing part.
7. The high-speed motor based on a double ball bearing structure according to claim 1, wherein: the front end portion is connected to the arrangement cavity, the rear end portion is connected with a fixing support, and the fixing support is connected to the stator assembly.
8. The double ball bearing structure-based high-speed motor according to claim 7, wherein: the front end portion is provided with a front end necking portion, the rear end portion is provided with a rear end necking portion, and the front end necking portion and the rear end necking portion are arranged on the stator assembly in a sleeved mode.
9. The high-speed motor based on a double ball bearing structure according to claim 1, wherein: the stator assembly comprises a stator framework and a stator core sleeved on the stator framework, and the rotating shaft assembly is sleeved on the stator framework.
10. The high-speed motor based on a double ball bearing structure according to claim 1, wherein: the flabellum is copper alloy flabellum, and the hoop is provided with the blade of multiunit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122080329.1U CN216564753U (en) | 2021-08-31 | 2021-08-31 | High-speed motor based on double-ball bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122080329.1U CN216564753U (en) | 2021-08-31 | 2021-08-31 | High-speed motor based on double-ball bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216564753U true CN216564753U (en) | 2022-05-17 |
Family
ID=81564578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122080329.1U Active CN216564753U (en) | 2021-08-31 | 2021-08-31 | High-speed motor based on double-ball bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216564753U (en) |
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2021
- 2021-08-31 CN CN202122080329.1U patent/CN216564753U/en active Active
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