CN217761418U - Anti-channeling mechanism for rotating shaft of centrifugal fan - Google Patents
Anti-channeling mechanism for rotating shaft of centrifugal fan Download PDFInfo
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- CN217761418U CN217761418U CN202221631530.2U CN202221631530U CN217761418U CN 217761418 U CN217761418 U CN 217761418U CN 202221631530 U CN202221631530 U CN 202221631530U CN 217761418 U CN217761418 U CN 217761418U
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- centrifugal fan
- rotating shaft
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Abstract
The utility model relates to a rotating shaft anti-channeling mechanism of a centrifugal fan, which comprises a fan bracket, wherein the fan bracket is provided with a mounting seat, a bearing is arranged in the mounting seat, a rotating shaft is inserted in the bearing, one end of the rotating shaft is connected and fixed with a wind wheel, the other end of the rotating shaft is positioned at the bottom of the mounting seat, the bottom of the mounting seat is provided with a magnetic suction component, and the magnetic suction component is sucked with the end surface of the rotating shaft; the utility model has the advantages that: the subassembly is inhaled to the bottom installation magnetism of the mount pad on fan support, and the terminal surface of inhaling subassembly and axis of rotation mutually inhales, and when centrifugal fan was high-speed rotatory like this, the axial float can not take place for the axis of rotation that is connected with the wind wheel, can reduce the noise and the vibrations of centrifugal fan operation in-process to make the centrifugal force and the motor magnetic force balance nature of wind wheel better, promoted centrifugal fan's performance stability greatly.
Description
Technical Field
The utility model belongs to the technical field of centrifugal fan, especially, relate to a mechanism is prevented scurrying by centrifugal fan's axis of rotation.
Background
The centrifugal fan accelerates gas by utilizing a wind wheel rotating at a high speed according to the principle that kinetic energy is converted into potential energy, and then decelerates and changes the flow direction so as to convert the kinetic energy into the potential energy (pressure); this wherein wind wheel is in high-speed rotatory at the conversion in-process, and the wind wheel is connected with centrifugal fan's axis of rotation to the wind wheel can make the axis of rotation appear the emergence of axial float at high-speed rotatory in-process, therefore noise and vibrations can be great, but also can make the centrifugal force of wind wheel and motor magnetic force unbalance, make centrifugal fan's performance unstable inadequately.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of prior art existence, and provide a mechanism is prevented scurrying by centrifugal fan's axis of rotation, can prevent that the axial float from appearing in the axis of rotation that the wind wheel is connected at high-speed rotatory in-process to can reduce centrifugal fan at the noise and the vibrations of operation in-process, the performance is more stable.
The utility model aims at accomplishing through following technical scheme, this kind of centrifugal fan's axis of rotation prevents scurrying mechanism and includes the fan support, be equipped with the mount pad on the fan support, install the bearing in the mount pad, it has the axis of rotation to alternate in the bearing, the one end of axis of rotation is connected fixedly with the wind wheel, the other end of axis of rotation is located the bottom of mount pad, just the subassembly is inhaled to magnetism is installed to the bottom of mount pad, magnetism inhale the subassembly with the terminal surface looks of axis of rotation inhales.
The beneficial effects of the utility model are that: compared with the prior art, the subassembly is inhaled to the bottom installation magnetism of mount pad on the fan support, and the terminal surface of inhaling subassembly and axis of rotation mutually, and when centrifugal fan was high-speed rotatory like this, the axial float can not take place for the axis of rotation that is connected with the wind wheel, can reduce the noise and the vibrations of centrifugal fan operation in-process to make the centrifugal force and the motor magnetic force balance nature of wind wheel better, promoted centrifugal fan's performance stability greatly.
Preferably, a stepped hole is formed in the mounting seat and is divided into a first mounting hole and a second mounting hole, the aperture of the first mounting hole is larger than that of the second mounting hole, the bearing is mounted in the first mounting hole, and the magnetic attraction component is mounted in the second mounting hole; through set up the shoulder hole in the mount pad, make the spacing that the bearing can be fine like this in the mount pad to the subassembly is inhaled to magnetism also can be spacing in the mount pad.
Preferably, the magnetic attraction component comprises an iron shell, a magnet and a friction plate, the magnet is arranged in the iron shell, the friction plate is arranged in the iron shell and attracted with the magnet, and the iron shell is arranged at the bottom of the second mounting hole; therefore, the whole magnetic suction assembly is convenient to assemble and also convenient to install at the bottom of the second installation hole, and friction between the rotating shaft and the magnet can be prevented by arranging the friction plate.
Preferably, the end surface of the rotating shaft attracted by the magnetic attraction component is an arc surface, and the arc surface of the rotating shaft is abutted against the friction plate; through setting up the cambered surface at the terminal surface of axis of rotation, make axis of rotation and magnetism inhale the subassembly like this and inhale the time, for the contact with the face, can not influence the rotation of axis of rotation.
Preferably, a circle of groove is radially formed in the other end of the rotating shaft, a clamping ring is sleeved in the groove, and the clamping ring is installed at the bottom of the first installation hole and is compressed through the bearing. Through setting up the snap ring to this snap ring and the other end groove looks adaptation of axis of rotation, the wind wheel of connection on the axis of rotation in case receives external force influence, can prevent that the axis of rotation from breaking away from the bearing and arousing the incident.
Preferably, the clamping ring is provided with at least two through grooves, and all the through grooves are communicated with the inner ring of the clamping ring; thus, the installation between the clamping ring and the rotating shaft is convenient, and the clamping ring can be well limited in the groove.
Preferably, the through grooves are arranged along the radial direction of the clamping ring and are uniformly distributed in the circumferential direction around the center of the clamping ring; therefore, the deformation of the clamping ring can be more uniform, and the clamping ring and the rotating shaft can be more conveniently installed.
Drawings
Fig. 1 is a schematic view of the main section structure of the anti-channeling mechanism of the rotating shaft of the present invention.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Fig. 3 is a schematic diagram of the snap ring structure of the present invention.
The reference numbers in the drawings are respectively: 1. a fan support; 2. a bearing; 3. a rotating shaft; 4. a wind wheel; 5. a magnetic component; 6. a snap ring; 11. a mounting seat; 31. a groove; 51. an iron shell; 52. a magnet; 53. a friction plate; 61. a through groove; 11-1, a first mounting hole; 11-2 and a second mounting hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings: as shown in the attached drawings 1 to 3, the utility model comprises a fan bracket 1, wherein a mounting seat 11 is arranged on the fan bracket 1, and the mounting seat 11 and the fan bracket 1 are integrally molded by injection and compression, so that the structure is more stable; a bearing 2 is installed in the installation seat 11, a rotating shaft 3 is inserted in the bearing 2, one end of the rotating shaft 3 is connected and fixed with the wind wheel 4, the other end of the rotating shaft 3 is located at the bottom of the installation seat 11, a magnetic attraction component 5 is installed at the bottom of the installation seat 11, and the magnetic attraction component 5 is attracted with the end face of the rotating shaft 3; this centrifugal fan is permanent magnetism centrifugal fan, and centrifugal fan's wind wheel 4 is driven through axis of rotation 3 at high-speed rotatory in-process, inhales subassembly 5 so through setting up the axial float that can prevent axis of rotation 3, can reduce the noise and the vibrations of centrifugal fan operation in-process to make the centrifugal force and the motor magnetic force balance nature of wind wheel better, promoted centrifugal fan's performance stability greatly.
A stepped hole is formed in the mounting seat 11 and is divided into a first mounting hole 11-1 and a second mounting hole 11-2, the aperture of the first mounting hole 11-1 is larger than that of the second mounting hole 11-2, the bearing 2 is mounted in the first mounting hole 11-1, and the magnetic attraction component 5 is mounted in the second mounting hole 11-2; the magnetic attraction component 5 comprises an iron shell 51, a magnet 52 and a friction plate 53, the magnet 52 is arranged in the iron shell 51, the friction plate 53 is arranged in the iron shell 51 and attracted with the magnet 52, the iron shell 51 is arranged at the bottom of the second mounting hole 11-2, and the outer wall of the iron shell 51 is in interference fit with the inner wall of the second mounting hole 11-2 to prevent the iron shell 51 from separating from the second mounting hole 11-2; the end surface of the rotating shaft 3 attracted with the magnetic attraction component 5 is a cambered surface, and the cambered surface of the rotating shaft 3 is abutted against the friction plate 53; the friction plate 53 can prevent the rotating shaft 3 from directly contacting the magnet 52, and meanwhile, the rotating shaft 3 only can rub against the friction plate 53, and the friction plate is convenient to replace, so that convenience is brought to subsequent maintenance.
A circle of groove 31 is radially formed in the other end of the rotating shaft 3, a clamping ring 6 is sleeved in the groove 31, and the clamping ring 6 is installed at the bottom of the first installation hole 11-1 and is tightly pressed through the bearing 2; at least two through grooves 61 are formed in the clamping ring 6, and all the through grooves 61 are communicated with the inner ring of the clamping ring 6; the through grooves 61 are arranged along the radial direction of the snap ring 6 and are uniformly distributed in the circumferential direction around the center of the snap ring 6.
The present invention is not limited to the above embodiments, and any change is made on the shape or material composition, and all the structural designs provided by the present invention are all the deformation of the present invention, which should be considered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a mechanism is prevented scurrying by centrifugal fan's axis of rotation, includes fan support (1), be equipped with mount pad (11) on fan support (1), its characterized in that: install bearing (2) in mount pad (11), it has axis of rotation (3) to alternate in bearing (2), the one end of axis of rotation (3) is connected fixedly with wind wheel (4), the other end of axis of rotation (3) is located the bottom of mount pad (11), just the bottom of mount pad (11) is installed and is inhaled subassembly (5), inhale subassembly (5) and the terminal surface looks of axis of rotation (3) is inhaled.
2. The rotating shaft anti-channeling mechanism of a centrifugal fan according to claim 1, wherein: the magnetic bearing is characterized in that a stepped hole is formed in the mounting seat (11) and is divided into a first mounting hole (11-1) and a second mounting hole (11-2), the aperture of the first mounting hole (11-1) is larger than that of the second mounting hole (11-2), the bearing (2) is mounted in the first mounting hole (11-1), and the magnetic component (5) is mounted in the second mounting hole (11-2).
3. The rotation shaft anti-channeling mechanism of a centrifugal fan according to claim 2, wherein: subassembly (5) are inhaled to magnetism includes iron-clad (51), magnet (52), friction disc (53), magnet (52) are installed in iron-clad (51), friction disc (53) are installed in iron-clad (51) and with magnet (52) attract mutually, iron-clad (51) are installed the bottom of second mounting hole (11-2).
4. The rotation shaft anti-channeling mechanism of a centrifugal fan according to claim 3, wherein: the end face of the rotating shaft (3) attracted by the magnetic attraction component (5) is an arc face, and the arc face of the rotating shaft (3) is abutted to the friction plate (53).
5. The rotation shaft anti-channeling mechanism of a centrifugal fan according to claim 2, wherein: the other end of the rotating shaft (3) is radially provided with a circle of groove (31), a clamping ring (6) is sleeved in the groove (31), and the clamping ring (6) is installed at the bottom of the first installation hole (11-1) and is compressed through the bearing (2).
6. The rotation shaft anti-channeling mechanism of a centrifugal fan according to claim 5, wherein: at least two through grooves (61) are formed in the clamping ring (6), and all the through grooves (61) are communicated with the inner ring of the clamping ring (6).
7. The rotation shaft anti-channeling mechanism of a centrifugal fan according to claim 6, wherein: the through grooves (61) are arranged along the radial direction of the clamping ring (6) and are uniformly distributed in the circumferential direction around the center of the clamping ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221631530.2U CN217761418U (en) | 2022-06-27 | 2022-06-27 | Anti-channeling mechanism for rotating shaft of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221631530.2U CN217761418U (en) | 2022-06-27 | 2022-06-27 | Anti-channeling mechanism for rotating shaft of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217761418U true CN217761418U (en) | 2022-11-08 |
Family
ID=83897008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221631530.2U Active CN217761418U (en) | 2022-06-27 | 2022-06-27 | Anti-channeling mechanism for rotating shaft of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217761418U (en) |
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2022
- 2022-06-27 CN CN202221631530.2U patent/CN217761418U/en active Active
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