CN117823434A - Strong vibration resistant self-pretightening fan - Google Patents
Strong vibration resistant self-pretightening fan Download PDFInfo
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- CN117823434A CN117823434A CN202311825515.0A CN202311825515A CN117823434A CN 117823434 A CN117823434 A CN 117823434A CN 202311825515 A CN202311825515 A CN 202311825515A CN 117823434 A CN117823434 A CN 117823434A
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- pretightening
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- 238000003466 welding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000886569 Cyprogenia stegaria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Abstract
The invention relates to the technical field of fans, and provides a strong-vibration-resistant self-pretightening fan, which comprises: the device comprises a shell, a fan assembly, a first bearing assembly and a second bearing assembly, wherein the first bearing assembly is provided with bearing pads on an inner ring and an outer ring of the bearing, so that the fan can realize the pre-tightening of the first bearing through the reaction force born by the fan during normal operation; the second bearing assembly is used for better pre-tightening the second bearing by distributing the elastic force of the pre-tightening spring on the inner ring and the outer ring of the two bearings and then matching with the reaction force of the fan in the air outlet process. According to the self-pretightening device, the adjustable self-pretightening is provided for the two axial installation bearings of the fan, so that the vibration resistance of the bearings is improved, the service lives of the bearings and the fan are prolonged, and the technical problems of lower vibration resistance and short service life of the fan in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of fans, in particular to a strong-vibration-resistant self-pretightening fan.
Background
The application scene of the fan is different due to different installation equipment and installation environments, and in the prior art, the fan is often applied to some use occasions needing to resist strong vibration, so that high requirements are put on the vibration resistance and the service life of the fan. At least the technical problems of lower vibration resistance and short service life of the fan exist in the prior art.
Disclosure of Invention
The invention provides a strong-vibration-resistant self-pretightening fan which is used for solving the technical problems of lower vibration resistance and short service life of a fan in the prior art.
The technical scheme for realizing the aim of the invention is as follows: a self-pretension fan resistant to strong vibration, comprising: a housing; the fan assembly is positioned inside the shell and comprises a fan rotor assembly and a fan stator assembly, the fan stator assembly is arranged outside the fan rotor assembly, and the fan rotor assembly comprises a shaft; the first bearing assembly is positioned inside the shell and comprises a first bearing, an inner ring bearing pad and an outer ring bearing pad, the first bearing is connected with the shaft in a matched mode, the inner ring bearing pad is abutted with one side, away from the second bearing, of the first bearing, and the outer ring bearing pad is abutted with one side, close to the second bearing, of the first bearing; the second bearing assembly is positioned inside the shell and comprises a second bearing and a spring, the second bearing is connected with the shaft in a matched mode, and the spring is arranged between the first bearing and the second bearing.
Further, the second bearing assembly further comprises an adjusting gasket and a shaft clamping ring, one side of the adjusting gasket is abutted against one side, away from the spring, of the second bearing, the other side of the adjusting gasket is abutted against the shaft clamping ring, and the shaft clamping ring is arranged in the shaft limiting groove.
Further, the shaft is cooperatively connected with the fan rotor assembly by means of laser welding.
Further, a shaft sleeve is sleeved outside the first bearing and the second bearing, and the shaft sleeve is matched with the shell in a hot-fitting mode.
Further, the first bearing and the second bearing are respectively in clearance fit connection with the shaft.
Compared with the prior art, the invention has the beneficial effects that: provided is a strong vibration resistant self-pretightening fan, comprising: the device comprises a shell, a fan assembly, a first bearing assembly and a second bearing assembly, wherein the first bearing assembly is provided with bearing pads on an inner ring and an outer ring of the bearing, so that the fan can realize the pre-tightening of the first bearing through the reaction force born by the fan during normal operation; the second bearing assembly is used for better pre-tightening the second bearing by distributing the elastic force of the pre-tightening spring on the inner ring and the outer ring of the two bearings and then matching with the reaction force of the fan in the air outlet process. According to the self-pretightening device, the adjustable self-pretightening is provided for the two axial installation bearings of the fan, so that the vibration resistance of the bearings is improved, and the service lives of the bearings and the fan are prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a self-pretightening fan with strong vibration resistance according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a part of a structure of a self-pretightening fan with strong vibration resistance according to the embodiment of the invention;
reference numerals in the drawings: 1. a housing; 2. a fan rotor assembly; 3. a fan stator assembly; 4. a shaft; 5. a first bearing; 6. an inner ring bearing pad; 7. an outer ring bearing pad; 8. a second bearing; 9. and (3) a spring.
Detailed Description
Embodiments of the present application are described in detail below with reference to the accompanying drawings.
Other advantages and effects of the present application will become apparent to those skilled in the art from the present disclosure, when the following description of the embodiments is taken in conjunction with the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. The present application may be embodied or carried out in other specific embodiments, and the details of the present application may be modified or changed from various points of view and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The application provides a strong vibration resistant self-pretightening fan, include: the device comprises a shell, a fan assembly, a first bearing assembly and a second bearing assembly, wherein the first bearing assembly is provided with bearing pads on an inner ring and an outer ring of the bearing, so that the fan can realize the pre-tightening of the first bearing through the reaction force born by the fan during normal operation; the second bearing assembly is used for better pre-tightening the second bearing by distributing the elastic force of the pre-tightening spring on the inner ring and the outer ring of the two bearings and then matching with the reaction force of the fan in the air outlet process. The anti-vibration capacity of the bearing is improved, and the service lives of the bearing and the fan are prolonged.
As shown in fig. 1, the embodiment of the present application provides a strong vibration resistant self-pretightening fan, which specifically includes: a housing 1; the fan assembly is positioned inside the shell 1 and comprises a fan rotor assembly 2 and a fan stator assembly 3, the fan stator assembly 3 is arranged outside the fan rotor assembly 2, and the fan rotor assembly 2 comprises a shaft 4; a first bearing assembly located inside the housing 1, the first bearing assembly comprising a first bearing 5, an inner ring bearing pad 6 and an outer ring bearing pad 7, the first bearing 5 being in mating connection with the shaft, the inner ring bearing pad 6 abutting one side of the first bearing 5 remote from the second bearing 8, the outer ring bearing pad 7 abutting one side of the first bearing 5 near the second bearing 8; the second bearing assembly is located inside the shell 1, the second bearing assembly comprises the second bearing 8 and a spring 9, the second bearing 8 is connected with the shaft 4 in a matched mode, and the spring 9 is arranged between the first bearing 5 and the second bearing 8.
Specifically, the embodiment of the application provides a strong-vibration-resistant self-pretightening fan structure, which is shown in fig. 1, and comprises a shell 1, a fan assembly, a first bearing assembly and a second bearing assembly. The strong vibration resistant self-pretightening fan is provided with a fan blade end, and axial parts are assembled in a clearance fit mode, so that the service life of the fan in terms of a mechanical structure mainly depends on the working time of a bearing. The first bearing component and the second bearing component in the fan serve as mechanical supports of the fan shaft, and the friction coefficient in the rotating process of the rotor is reduced. The bearing near the root of the rotor shaft 4 is a first bearing 5, and the bearing near the end of the rotor shaft 4 is a second bearing 8. The mounting chambers of the first bearing 5 and the second bearing 8 are separated by a circlip via a bore. The first bearing assembly comprises a first bearing 5, an inner ring bearing pad 6 and an outer ring bearing pad 7; the second bearing assembly comprises a second bearing 8, a spring 9 pad, a spring 9 sleeve, an adjustment washer and a collar for the shaft.
Further, the first bearing assembly applies supporting forces to the inner ring and the outer ring of the first bearing 5 from two directions through the inner ring bearing pad 6 and the outer ring bearing pad 7, and as the wind outlet direction of the fan is the fan blade end, the fan blade is pressed against the inner ring bearing pad 6 by reactive force, so that air applies pressure to the inner ring bearing pad 6, the first bearing 5 and the outer ring bearing pad 7, and the design enables the reactive force applied by the fan during normal operation to participate in the pre-tightening of the first bearing 5.
Furthermore, the spring pad, the spring 9 and the spring sleeve of the second bearing assembly form a pre-tightening design structure of the fan, and the pre-tightening design structure is used for providing axial pre-tightening for resisting strong vibration for the front bearing and the rear bearing, and the shaft clamping ring and the nut are axial limiting and fixing parts, so that the assembly relation between the fan shell 1 assembly and the fan rotor assembly 2 is realized. The second bearing assembly further comprises an adjusting gasket and a shaft clamping ring, one side of the adjusting gasket is abutted against one side, away from the spring 9, of the second bearing 8, the other side of the adjusting gasket is abutted against the shaft clamping ring, and the shaft clamping ring is arranged in a limiting groove of the shaft 4. In the second bearing assembly, one side of the second bearing 8 receives supporting force from the spring 9, pretension is provided for the second bearing 8, the other side of the second bearing 8 is provided with fastening effect for the bearing by the adjusting gasket and the shaft clamping ring, meanwhile, as the shaft clamping ring is limited in the limiting clamping groove of the shaft 4, the shaft 4 serves as a driving mechanism to transmit elastic force of the spring 9 to the inner ring bearing pad 6 at the front end of the first bearing assembly, so that pretension is further provided for the first bearing 5.
Further, the shaft 4 is cooperatively connected with the fan rotor assembly 2 by means of laser welding.
Further, a sleeve is sleeved outside the first bearing 5 and the second bearing 8, and the sleeve is matched with the shell 1 in a hot-fitting manner.
Further, the first bearing 5 and the second bearing 8 are respectively in clearance fit connection with the shaft. The embodiment of the invention realizes the following technical effects:
the invention provides a strong-vibration-resistant self-pretightening fan, which comprises a shell, a fan assembly, a first bearing assembly and a second bearing assembly, wherein the first bearing assembly is used for pretightening a first bearing through the reaction force born by the fan during normal operation by adding bearing pads on an inner ring and an outer ring of the bearing; the second bearing assembly is used for better pre-tightening the second bearing by distributing the elastic force of the pre-tightening spring on the inner ring and the outer ring of the two bearings and then matching with the reaction force of the fan in the air outlet process. According to the self-pretightening device, the adjustable self-pretightening is provided for the two axial installation bearings of the fan, so that the vibration resistance of the bearings is improved, and the service lives of the bearings and the fan are prolonged.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations can be made to the embodiments of the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A self-pretension fan resistant to strong vibration, comprising:
a housing (1);
the fan assembly is positioned inside the shell (1), the fan assembly comprises a fan rotor assembly (2) and a fan stator assembly (3), the fan stator assembly (3) is arranged outside the fan rotor assembly (2), and the fan rotor assembly (2) comprises a shaft (4);
the first bearing assembly is positioned inside the shell (1), the first bearing assembly comprises a first bearing (5), an inner ring bearing pad (6) and an outer ring bearing pad (7), the first bearing (5) is connected with the shaft (4) in a matched mode, the inner ring bearing pad (6) is abutted with one side, away from the second bearing (8), of the first bearing (5), and the outer ring bearing pad (7) is abutted with one side, close to the second bearing (8), of the first bearing (5);
the second bearing assembly is positioned inside the shell (1), the second bearing assembly (8) comprises a second bearing (8) and a spring (9), the second bearing (8) is connected with the shaft (4) in a matched mode, and the spring (9) is arranged between the first bearing (5) and the second bearing (8).
2. The self-pretightening fan with resistance to strong vibration of claim 1, further comprising:
the second bearing assembly further comprises an adjusting gasket and a shaft clamping ring, one side of the adjusting gasket is abutted against one side, away from the spring (9), of the second bearing (8), the other side of the adjusting gasket is abutted against the shaft clamping ring, and the shaft clamping ring is arranged in a limiting groove of the shaft (4).
3. The self-pretightening fan with resistance to strong vibration of claim 1, further comprising:
the shaft (4) is matched and connected with the fan rotor assembly (2) in a laser welding mode.
4. The self-pretightening fan with resistance to strong vibration of claim 1, further comprising:
the first bearing (5) and the second bearing (8) are sleeved with a shaft sleeve, and the shaft sleeve is matched with the shell (1) in a hot-filling mode.
5. The self-pretightening fan with resistance to strong vibration of claim 1, further comprising:
the first bearing (5) and the second bearing (8) are respectively connected with the shaft (4) in a clearance fit way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311825515.0A CN117823434A (en) | 2023-12-27 | 2023-12-27 | Strong vibration resistant self-pretightening fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311825515.0A CN117823434A (en) | 2023-12-27 | 2023-12-27 | Strong vibration resistant self-pretightening fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117823434A true CN117823434A (en) | 2024-04-05 |
Family
ID=90505314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311825515.0A Pending CN117823434A (en) | 2023-12-27 | 2023-12-27 | Strong vibration resistant self-pretightening fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117823434A (en) |
-
2023
- 2023-12-27 CN CN202311825515.0A patent/CN117823434A/en active Pending
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