CN214281102U - Rotor bearing system and high-speed fan comprising same - Google Patents
Rotor bearing system and high-speed fan comprising same Download PDFInfo
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- CN214281102U CN214281102U CN202120457898.0U CN202120457898U CN214281102U CN 214281102 U CN214281102 U CN 214281102U CN 202120457898 U CN202120457898 U CN 202120457898U CN 214281102 U CN214281102 U CN 214281102U
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Abstract
The utility model relates to the technical field of high-speed fans, in particular to a rotor bearing system and a high-speed fan comprising the same, which comprises a shaft sleeve, a first bearing and a second bearing which are respectively arranged at two ends of the inner diameter of the shaft sleeve, a rotating shaft which penetrates through the first bearing and the second bearing and extends out of the shaft sleeve, and an elastic part which is sleeved on the rotating shaft and is positioned between the first bearing and the second bearing; one end of the rotating shaft is sleeved with a magnetic ring, and the other end of the rotating shaft is connected with a fan blade; the utility model adopts the pre-pressure of both the ball bearings, which ensures that the ball bearings can operate in the predetermined track without being damaged when the inner and outer rings rotate at high speed; the normal operation of the high-speed fan under the high-speed rotating load is ensured, and the service life is prolonged.
Description
Technical Field
The utility model relates to a high-speed fan technical field especially relates to a rotor bearing system and contain bearing system's high-speed fan.
Background
At present, the rotating speed of the existing high-speed fan motor in the market is very high (the rotating speed is up to more than 60000 rpm) when the high-speed fan motor works, so the requirement on the dynamic balance precision of a rotor is very strict. The problems of abnormal sound and short service life easily occur when the high-speed fan runs because the high-speed fan runs at high speed and has high load and high requirement on the installation of a bearing system.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a high-speed bearing which adopts two ball bearings with pre-pressure to ensure that the ball bearings can operate in the preset track without being damaged when the ball bearings rotate at high speed; the rotor bearing system and the high-speed fan comprising the bearing system ensure that the high-speed fan can normally run under high-speed rotating load, and prolong the service life.
The utility model adopts the technical proposal that: a rotor bearing system comprises a shaft sleeve, a first bearing and a second bearing which are respectively arranged at two ends of the inner diameter of the shaft sleeve, a rotating shaft which penetrates through the first bearing and the second bearing and extends out of the shaft sleeve, and an elastic piece which is sleeved on the rotating shaft and is positioned between the first bearing and the second bearing; one end of the rotating shaft is sleeved with a magnetic ring, and the other end of the rotating shaft is connected with a fan blade.
The further improvement of the scheme is that the outer diameter of the rotating shaft is sleeved with a spacer, a first gasket, a second gasket, a third gasket and a clamp spring, the first bearing is separated from the first gasket by the spacer, the second bearing is separated from the elastic piece by the second gasket, the fan blade is separated from the first bearing by the third gasket, and the second bearing is fixed in the shaft sleeve by the clamp spring.
The further improvement of the scheme is that the spacer is fixedly arranged at the inner diameter of the shaft sleeve.
The further improvement of the above scheme is that the elastic member is a spring and is sleeved on the rotating shaft, and two ends of the elastic member are respectively abutted against the first gasket and the second gasket.
The fan blade comprises a connecting column connected with the rotating shaft, a connecting ring arranged on the connecting column and blades circumferentially and uniformly distributed on the connecting ring, the connecting ring is provided with a groove, and the shaft sleeve sinks into the groove.
A method of assembling a rotor bearing system, including said rotor bearing system, the method comprising the steps of:
step S1, fixing the spacer on the inner diameter of the shaft sleeve;
step S2, mounting the first bearing in the shaft sleeve and jointing the first bearing with the spacer;
step S3, the first gasket is arranged in the inner diameter of the shaft sleeve and is attached to the spacer to be flat;
step S4, an elastic piece is arranged in the groove, and one end of the elastic piece is pressed into the first gasket;
step S5, a second gasket is arranged in the inner diameter of the shaft sleeve and is pressed to the elastic piece;
step S6, a second bearing is arranged in the shaft sleeve, one end of the second bearing is attached to the second gasket, and then the second bearing penetrates through the rotating shaft;
step S7, after the clamp spring is clamped into the rotating shaft to be fixed, the magnetic ring is connected with the rotating shaft;
step S8, the fan blade is fixedly connected to the rotating shaft.
In a further improvement of the above scheme, in step S2, the first bearing is matched with the inner diameter of the shaft sleeve by glue;
in a further improvement of the above solution, in step S7, the magnetic ring is fixedly connected to the rotating shaft through glue.
In a further improvement of the foregoing solution, in step S8, the fan blade is mounted on the rotating shaft after the third pad is attached to the second bearing.
A high-speed fan comprises the rotor bearing system.
The technical scheme is further improved by comprising an air duct, a ventilation cavity arranged in the air duct, a fixed cavity arranged in the ventilation cavity and a stator assembly arranged in the fixed cavity, wherein the fixed cavity comprises a rotor fixed groove and a stator fixed groove;
the stator assembly comprises a stator system and a PCB connected with the stator system, and the magnetic ring extends into the rotor system;
in a further improvement of the above solution, the blades of the fan blade correspond to the ventilation cavity.
The utility model has the advantages that:
compare traditional high-speed fan rotor structure, the utility model provides a high-speed fan operation rotational speed high load big, it is high to bearing system installation requirement, has abnormal sound and the short-lived problem easily during high-speed fan operation. The two ball bearings are both provided with pre-pressure, so that the ball bearings can be ensured to operate in a preset track without being damaged in the inner ring and the outer ring when rotating at high speed; the normal operation of the high-speed fan under the high-speed rotating load is ensured, and the service life is prolonged.
Drawings
Fig. 1 is a schematic perspective view of a high-speed fan of the present invention;
FIG. 2 is an exploded view of the high speed fan of FIG. 1;
FIG. 3 is a schematic view of another visual explosion of the high speed fan of FIG. 1;
FIG. 4 is an exploded view of the rotor bearing system of the high speed wind turbine of FIG. 1;
FIG. 5 is a schematic structural view of a rotor bearing system of the high speed wind turbine of FIG. 1.
Description of reference numerals: the air duct 1, the ventilation cavity 11, the fixing cavity 12, the rotor fixing groove 121, the stator fixing groove 122, the stator assembly 2, the rotor system 21, the PCB 22, the rotor bearing system 3, the shaft sleeve 31, the first bearing 32, the second bearing 33, the rotating shaft 34, the spacer 341, the first spacer 342, the second spacer 343, the third spacer 344, the snap spring 345, the elastic member 35, the magnetic ring 36, the fan blade 37, the connecting column 371, the connecting ring 372, the groove 372a, and the vane 373.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The 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 invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1 to 5, the rotor bearing system 3 includes a shaft sleeve 31, a first bearing 32 and a second bearing 33 respectively disposed at two ends of an inner diameter of the shaft sleeve 31, a rotating shaft 34 penetrating the first bearing 32 and the second bearing 33 and extending out of the shaft sleeve 31, and an elastic member 35 sleeved on the rotating shaft 34 and located between the first bearing 32 and the second bearing 33; one end of the rotating shaft 34 is sleeved with a magnetic ring 36, and the other end is connected with a fan blade 37. The rotating shaft 34 is fixed through the matching of the two groups of bearings, the stability of the structure is guaranteed through the elastic piece 35, and the structure is reliable.
The outer diameter of the rotating shaft 34 is sleeved with a spacer 341, a first spacer 342, a second spacer 343, a third spacer 344 and a clamp spring 345, the first bearing 32 is separated from the first spacer 342 by the spacer 341, the second bearing 33 is separated from the elastic element 35 by the second spacer 343, the fan blades 37 are separated from the first bearing 32 by the third spacer 344, the second bearing 33 is fixed in the shaft sleeve 31 by the clamp spring 345, and the spacers 341 and multiple groups of spacers are used for separating structures, so that the stability of transmission is further ensured.
The elastic element 35 is a spring and is sleeved on the rotating shaft 34, two ends of the elastic element 35 are respectively abutted against the first gasket 342 and the second gasket 343, and the elastic element 35 is used for ensuring the stability of transmission between the two bearings, so that the problems that the high-speed fan is high in rotating speed and load, high in requirement on the installation of a bearing system, high in noise and short in service life when the high-speed fan operates are solved.
The assembling method of the rotor bearing system 3 comprises the rotor bearing system 3, and comprises the following steps: step S1, fixing the spacer 341 at the inner diameter of the sleeve 31; step S2, mounting the first bearing 32 in the sleeve 31 and bonding it to the spacer 341; step S3, fitting the first spacer 342 into the inner diameter of the sleeve 31 and fitting the spacer 341 flat; step S4, loading the elastic member 35 and pressing one end thereof into the first pad 342; step S5, the second gasket 343 is fitted into the inner diameter of the shaft sleeve 31 and press-fitted to the elastic member 35; step S6, the second bearing 33 is installed in the shaft sleeve 31, and one end of the second bearing is attached to the second gasket 343 and penetrates into the rotating shaft 34; step S7, after the clamp spring 345 is clamped into the rotating shaft 34 and fixed, the magnetic ring 36 is connected with the rotating shaft 34; in step S8, the fan 37 is fixedly connected to the rotating shaft 34. By adopting the assembling method, the assembling is convenient and the assembling efficiency is high.
In another embodiment, in step S2, the first bearing 32 is fitted to the inner diameter of the sleeve 31 by glue.
In another embodiment, in step S7, the magnetic ring 36 is fixedly connected to the rotating shaft 34 by glue.
In another embodiment, in step S8, after the third pad 344 is attached to the second bearing 33, the fan 37 is mounted on the rotating shaft 34.
The high-speed fan comprises an air duct 1, a ventilation cavity 11 arranged in the air duct 1, a fixed cavity 12 arranged in the ventilation cavity 11, and a stator assembly 2 arranged in the fixed cavity 12, wherein the fixed cavity 12 comprises a rotor fixing groove 121 and a stator fixing groove 122, the rotor bearing system 3 is detachably arranged in the rotor fixing groove 121, the stator assembly 2 is arranged in the stator fixing groove 122, and the magnetic ring 36 extends into the stator assembly 2; the stator assembly 2 comprises a rotor system 21 and a PCB 22 connected to the rotor system 21, and the magnetic ring 36 extends into the rotor system 21; the blade 373 of the fan blade 37 corresponds to the ventilation chamber 11. The two ball bearings are both provided with pre-pressure, so that the ball bearings can be ensured to operate in a preset track without being damaged in the inner ring and the outer ring when rotating at high speed; the normal operation of the high-speed fan under the high-speed rotating load is ensured, and the service life is prolonged. The outside cover in wind channel 1 is equipped with the shock attenuation gum cover, is used for slowing down fan driven vibration through the shock attenuation gum cover.
The utility model provides a high-speed fan operation rotational speed high load big, it is high to the bearing system installation requirement, there is abnormal sound and the short-lived problem easily when high-speed fan operates. The two ball bearings are both provided with pre-pressure, so that the ball bearings can be ensured to operate in a preset track without being damaged in the inner ring and the outer ring when rotating at high speed; the normal operation of the high-speed fan under the high-speed rotating load is ensured, and the service life is prolonged. The high-speed fan comprises an air duct 1, a ventilation cavity 11 arranged in the air duct 1, a fixed cavity 12 arranged in the ventilation cavity 11, and a stator assembly 2 arranged in the fixed cavity 12, wherein the fixed cavity 12 comprises a rotor fixing groove 121 and a stator fixing groove 122, a rotor bearing system 3 is detachably arranged in the rotor fixing groove 121, the stator assembly 2 is arranged in the stator fixing groove 122, and a magnetic ring 36 extends into the stator assembly 2; the rotor bearing system 3 is provided with a shaft sleeve 31, a first bearing 32 and a second bearing 33 which are respectively arranged at two ends of the inner diameter of the shaft sleeve 31, a rotating shaft 34 which penetrates through the first bearing 32 and the second bearing 33 and extends out of the shaft sleeve 31, and an elastic piece 35 which is sleeved on the rotating shaft 34 and is positioned between the first bearing 32 and the second bearing 33; one end of the rotating shaft 34 is sleeved with a magnetic ring 36, and the other end is connected with a fan blade 37.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. A rotor bearing system, characterized by: the bearing comprises a shaft sleeve, a first bearing and a second bearing which are respectively arranged at two ends of the inner diameter of the shaft sleeve, a rotating shaft which penetrates through the first bearing and the second bearing and extends out of the shaft sleeve, and an elastic piece which is sleeved on the rotating shaft and is positioned between the first bearing and the second bearing; one end of the rotating shaft is sleeved with a magnetic ring, and the other end of the rotating shaft is connected with a fan blade.
2. The rotor bearing system as recited in claim 1, wherein: the outer diameter of the rotating shaft is sleeved with a spacer, a first gasket, a second gasket, a third gasket and a clamp spring, the first bearing is separated from the first gasket by the spacer, the second bearing is separated from the elastic piece by the second gasket, the fan blades are separated from the first bearing by the third gasket, and the second bearing is fixed in the shaft sleeve by the clamp spring.
3. The rotor bearing system as recited in claim 2, wherein: the spacer is fixedly arranged on the inner diameter of the shaft sleeve.
4. The rotor bearing system as recited in claim 3, wherein: the elastic piece is a spring and is sleeved on the rotating shaft, and two ends of the elastic piece are respectively abutted against the first gasket and the second gasket.
5. The rotor bearing system as recited in claim 4, wherein: the fan blade comprises a connecting column connected with the rotating shaft, a connecting ring arranged on the connecting column and blades circumferentially and uniformly distributed on the connecting ring, the connecting ring is provided with a groove, and the shaft sleeve sinks into the groove.
6. A high-speed fan which is characterized in that: comprising a rotor bearing system according to any one of claims 1 to 5.
7. The high-speed fan of claim 6, wherein: including the wind channel, set up in the ventilation chamber in wind channel, set up in the fixed chamber of ventilation intracavity and install in the stator module of fixed intracavity, fixed chamber includes rotor fixed slot and stator fixed slot, rotor bearing system separable mounting is in the rotor fixed slot, stator module installs in the stator fixed slot, the magnetic ring extends to in the stator module, the outside cover in wind channel is equipped with the shock attenuation gum cover.
8. The high-speed fan according to claim 7, wherein: the stator assembly comprises a stator system and a PCB connected to the stator system, and the magnetic ring extends into the rotor system.
9. The high-speed fan according to claim 8, wherein: the blades of the fan blades correspond to the ventilation cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120457898.0U CN214281102U (en) | 2021-03-03 | 2021-03-03 | Rotor bearing system and high-speed fan comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120457898.0U CN214281102U (en) | 2021-03-03 | 2021-03-03 | Rotor bearing system and high-speed fan comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214281102U true CN214281102U (en) | 2021-09-24 |
Family
ID=77792980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120457898.0U Active CN214281102U (en) | 2021-03-03 | 2021-03-03 | Rotor bearing system and high-speed fan comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214281102U (en) |
-
2021
- 2021-03-03 CN CN202120457898.0U patent/CN214281102U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220607 Address after: 523819 Room 203, building 2, No. 91, zongdui Road, Dalingshan Town, Dongguan City, Guangdong Province Patentee after: Dongguan Landong Technology Co.,Ltd. Address before: 518172 a1104b, workshop 1, Tianan Digital City Pioneer Park, 475 huanggekeng North Road, huanggekeng community, Longcheng street, Longgang District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Blue Orange Global Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |