CN215860860U - Axial magnetic flux permanent magnet speed regulation fan - Google Patents
Axial magnetic flux permanent magnet speed regulation fan Download PDFInfo
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- CN215860860U CN215860860U CN202121145528.XU CN202121145528U CN215860860U CN 215860860 U CN215860860 U CN 215860860U CN 202121145528 U CN202121145528 U CN 202121145528U CN 215860860 U CN215860860 U CN 215860860U
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Abstract
The utility model relates to the technical field of speed-regulating fans, and particularly discloses an axial flux permanent magnet speed-regulating fan, wherein a permanent magnet rotor is arranged on a sliding mechanism on an input shaft, the sliding mechanism drives the permanent magnet rotor to move on the input shaft, so that the magnetic flux passing through an impeller conductor rotor can be changed, and the rotating speed of the fan is further changed, the sliding mechanism consists of a wheel shaft sleeve arranged on the input shaft and a sliding sleeve capable of sliding on the wheel shaft sleeve, the sliding sleeve can drive the permanent magnet rotor to move, the sliding of the sliding sleeve is realized by driving a toggle ring arranged on the sleeve, and due to the clearance fit of the toggle ring and the sliding sleeve, when the speed is not regulated, the toggle ring does not influence the rotation of the permanent magnet rotor, and when the speed is required to be regulated, the toggle ring drives the sliding sleeve to move and does not influence the rotation of the permanent magnet rotor.
Description
Technical Field
The utility model relates to the technical field of speed-regulating fans, in particular to an axial magnetic flux permanent magnet speed-regulating fan.
Background
The permanent magnet coupler: the magnetic coupler is a device for realizing torque transmission from a motor to a load through an air gap between a conductor rotor and a permanent magnet rotor, and the working principle of the magnetic coupler is that when the conductor rotor and the permanent magnet rotor move relatively, a conductor component cuts magnetic lines of force, eddy current is generated in the conductor, the eddy current further generates a counter-induction magnetic field, and the counter-induction magnetic field interacts with a magnetic field generated by a permanent magnet, so that torque transmission between the conductor rotor and the permanent magnet rotor is realized, and the permanent magnet speed regulator is a speed regulating machine which is added with an adjusting mechanism on the basis of the permanent magnet coupler and realizes the purpose of energy saving.
The permanent magnet speed regulation fan is a fan for regulating speed by using a permanent magnet speed regulator, and has the advantages of working under severe conditions, small system vibration, good stability and the like, but the existing permanent magnet speed regulation fan usually needs to move the position of a motor to realize the adjustment of an air gap between a conductor rotor and a permanent magnet rotor when regulating speed, the occupied space of the mechanism capable of realizing the movement of the position of the whole motor is larger, the structure is also more complex, and the mechanism is not beneficial to being used in a small space, so that the speed regulation fan capable of realizing the control of the size of the air gap between the conductor rotor and the permanent magnet rotor without changing the position of the motor is needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, an object of the present invention is to provide an axial flux permanent magnet speed regulation fan, which can realize speed regulation of the fan by adjusting the position of a permanent magnet rotor on an input shaft.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides an axial magnetic flow permanent magnet speed regulation fan, includes that one end is connected input shaft and one end and fan wheel fixed connection's on driving motor output shaft, be provided with permanent magnet rotor on the other end of input shaft, fixed mounting has the impeller conductor rotor on the other end of output shaft, permanent magnet rotor and impeller conductor rotor set up relatively, permanent magnet rotor's magnetic flow direction is the axial, the one end fixed mounting that the input shaft is close to the output shaft has along the gliding sliding mechanism of input shaft axis, permanent magnet rotor fixed connection is on sliding mechanism.
The permanent magnet rotor, the impeller conductor rotor and the sliding mechanism are all arranged in the shell.
As a further scheme of the utility model: the sliding mechanism comprises a wheel axle sleeve fixedly connected to the input axle body, a sliding sleeve is connected to the outer peripheral surface of the wheel axle sleeve in a sliding mode, and the permanent magnet rotor is fixedly connected to the outer peripheral surface of the sliding sleeve.
As a further scheme of the utility model: the outer peripheral surface of the wheel axle sleeve is fixedly connected with a plurality of convex teeth at equal angles, the inner surface of the sliding sleeve is provided with a plurality of grooves distributed at equal angles, and the convex teeth are matched with the grooves.
As a further scheme of the utility model: the outer peripheral surface of the sliding sleeve is provided with an annular clamping groove, a stirring ring is sleeved in the annular clamping groove, and the stirring ring is in clearance fit with the sliding sleeve.
As a further scheme of the utility model: the poke ring is fixedly connected with a poke rod, and the free end of the poke rod extends out of the shell.
As a further scheme of the utility model: the casing is provided with a strip-shaped hole, a poking block is arranged in the strip-shaped hole in a sliding mode, and the bottom of the poking block is fixedly connected with the end part of the free end of the poking rod.
The utility model has the beneficial effects that:
the utility model installs the permanent magnet rotor on the sliding mechanism on the input shaft, the sliding mechanism drives the permanent magnet rotor to move on the input shaft, thereby changing the magnetic flux passing through the impeller conductor rotor, thereby changing the rotating speed of the fan, the speed regulating mode has simple structure, the permanent magnet rotor and the impeller conductor rotor are not directly contacted, the abrasion of elements is avoided, the service life of the speed regulating fan is prolonged, the sliding mechanism consists of a wheel shaft sleeve arranged on the input shaft and a sliding sleeve capable of sliding on the wheel shaft sleeve, the sliding sleeve can drive the permanent magnet rotor to move, the sliding of the sliding sleeve is realized by a toggle ring arranged on the sleeve, and because the toggle ring is in clearance fit with the sliding sleeve, when not adjusting speed, stir the ring and can not produce the influence to permanent magnet rotor's rotation, and when needs speed governing, stir the ring and do not influence permanent magnet rotor's rotation when driving the slip sleeve and remove.
Drawings
The utility model will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic cross-sectional view of the housing construction of the present invention;
FIG. 2 is a schematic front view of the overall structure of the present invention;
FIG. 3 is a schematic side view of the sliding sleeve and toggle ring connection of the present invention;
FIG. 4 is a schematic side view of the hub connection of the present invention;
fig. 5 is a front view schematically showing the connection structure of the hub and the permanent magnet rotor according to the present invention.
In the figure: 1. an input shaft; 2. an output shaft; 3. a permanent magnet rotor; 4. an impeller conductor rotor; 5. a hub sleeve; 6. a sliding sleeve; 7. a dial ring; 8. a poke rod; 9. a shifting block; 10. a housing; 11. a strip-shaped hole; 12. a convex tooth; 13. a groove; 14. and an annular clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention is an axial magnetic flux permanent magnet speed regulation fan, including a housing 10, an input shaft 1 extending along a central axis and an output shaft 2 arranged opposite to the input shaft 1 are arranged in the housing 10, one end of the input shaft 1 extending out of the housing 10 is connected to an external motor, one end of the output shaft 2 extending out of the housing 10 is provided with a fan impeller, one end of the input shaft 1 close to the output shaft 2 is provided with a permanent magnet rotor 3, an end portion of the output shaft 2 close to the input shaft 1 is fixedly connected with an impeller conductor rotor 4, the permanent magnet rotor 3 and the impeller conductor rotor 4 are arranged opposite to each other, a gap between the permanent magnet rotor 3 and the impeller conductor rotor 4 is an air gap, magnetic flux directions of the permanent magnet rotor 3 and the impeller conductor rotor 4 are both axial, an end portion of the input shaft 1 close to the output shaft 2 is fixedly provided with a sliding mechanism sliding along an axis of the input shaft 1, the permanent magnet rotor 3 is fixedly connected to the sliding mechanism.
The permanent magnet rotor 3, the impeller conductor rotor 4 and the sliding mechanism are all arranged in the shell 10.
The permanent magnet rotor 3 is close to the equal angle of the terminal surface of impeller conductor rotor 4 and is installed a plurality of permanent magnets, and N utmost point permanent magnet and S utmost point permanent magnet staggered arrangement, a plurality of permanent magnets form axial magnetic field.
Slide mechanism includes 1 axle sleeve 5 of fixed connection on the axle body of input shaft, sliding connection has sliding sleeve 6 on the outer peripheral face of axle sleeve 5, permanent magnet rotor 3 fixed connection is on sliding sleeve 6's outer peripheral face, and permanent magnet rotor 3 can follow sliding sleeve 6 and slide on axle sleeve 5.
The outer peripheral surface of the axle sleeve 5 is fixedly connected with a plurality of convex teeth 12 at equal angles, the inner surface of the sliding sleeve 6 is provided with a plurality of grooves 13 which are distributed at equal angles and extend along the axial direction, and the convex teeth 12 are matched with the grooves 13.
The outer peripheral face of the sliding sleeve 6 is provided with an annular clamping groove 14, a stirring ring 7 is sleeved in the annular clamping groove 14, the inner diameter of the stirring ring 7 is smaller than the outer diameter of the side wall of the annular clamping groove 14, the stirring ring 7 is in clearance fit with the sliding sleeve 6, so that when the sliding sleeve 6 is driven to rotate by the wheel axle sleeve 5, the stirring ring 7 has small influence on the rotation of the permanent magnet rotor 3, and when speed is required to be adjusted, the movement of the stirring ring 7 can drive the permanent magnet rotor 3 to move on the input shaft 1 along the axial direction under the condition that the rotation of the permanent magnet rotor 3 is not influenced.
The upper portion of the poking ring 7 is fixedly connected with a poking rod 8, and the free end of the poking rod 8 extends out of the shell 10.
The casing 10 is last to have seted up bar hole 11, slidable mounting has stirring piece 9 in the bar hole 11, stirring piece 9 bottom and the free end tip fixed connection of stirring pole 8, stirring piece 9 slides in bar hole 11 to drive sliding sleeve 6 and remove.
In order to realize accurate control of the fan speed, according to the relationship between the air gap size of the permanent magnet rotor 3 and the impeller conductor rotor 4 and the fan rotating speed, speed regulation scales can be arranged on two sides of the strip-shaped hole 11, the poking block 9 is poked according to the scales, and the conditions of air gap regulation and the fan rotating speed can be visually displayed in other modes, such as setting electrical elements to transmit signals, displaying the fan rotating speed through display devices such as an LED and the like, and adjusting according to the displayed wind speed.
It should be noted that the tap lever 8 can also be connected to the sliding sleeve 6 parallel to the axis of the input shaft 1, and the movement of the permanent magnet rotor 3 on the input shaft 1 is driven by pulling the tap lever 8 horizontally.
The working principle is as follows: when the utility model works, an external motor drives an input shaft 1 to rotate, a permanent magnet rotor 3 at the tail end of the input shaft 1 rotates along with the input shaft 1 to generate an axial rotating magnetic field, an impeller conductor rotor 4 of a fan opposite to the permanent magnet rotor 3 generates electromotive force due to electromagnetic induction, the impeller conductor rotor 4 starts to rotate along with the permanent magnet rotor 3, so that the blades of the fan rotate, when speed regulation is needed, a poking block 9 outside a shell 10 is poked, the poking block 9 drives a poking rod 8 to move in a strip-shaped hole 11, and then a poking ring 7 can drive a sliding sleeve 6 to slide on a wheel shaft sleeve 5, so that the adjustment of the gap distance between the permanent magnet rotor 3 and the impeller conductor rotor 4 is realized, the adjustment of the size of the gap can change the magnetic flux cut by the impeller conductor rotor 4, when the permanent magnet rotor 3 moves in the direction far away from the impeller conductor rotor 4, the magnetic flux cut by the impeller conductor rotor 4 is reduced, the rotating speed of the impeller conductor rotor 4 is increased due to the decrease of the magnetic flux, the torque output by the corresponding impeller conductor rotor 4 is decreased, while the magnetic flux cut by the impeller conductor rotor 4 is increased when the permanent magnet rotor 3 moves in the direction close to the impeller conductor rotor 4, and the rotating speed of the impeller conductor rotor 4 is decreased due to the increase of the magnetic flux, and the torque output by the corresponding impeller conductor rotor 4 is increased.
The foregoing is merely exemplary and illustrative of the present invention, and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. An axial magnetic flux permanent magnet speed regulation fan comprises an input shaft (1) and an output shaft (2), wherein one end of the input shaft (1) is connected to a driving motor, one end of the output shaft (2) is fixedly connected with a fan impeller, a permanent magnet rotor (3) is arranged at the other end of the input shaft (1), an impeller conductor rotor (4) is fixedly arranged at the other end of the output shaft (2), the permanent magnet rotor (3) and the impeller conductor rotor (4) are oppositely arranged, the magnetic flux direction of the permanent magnet rotor (3) is axial, the axial magnetic flux permanent magnet speed regulation fan is characterized in that a sliding mechanism which slides along the axis of the input shaft (1) is fixedly arranged at one end, close to the output shaft (2), of the input shaft (1), and the permanent magnet rotor (3) is fixedly connected to the sliding mechanism;
the permanent magnet rotor (3), the impeller conductor rotor (4) and the sliding mechanism are all arranged in the shell (10).
2. The axial flux permanent magnet speed regulation fan of claim 1, wherein the sliding mechanism comprises a hub (5) fixedly connected to the shaft body of the input shaft (1), a sliding sleeve (6) is slidably connected to the outer peripheral surface of the hub (5), and the permanent magnet rotor (3) is fixedly connected to the outer peripheral surface of the sliding sleeve (6).
3. The axial flux permanent magnet speed regulation fan of claim 2, wherein the outer peripheral surface of the hub (5) is fixedly connected with a plurality of axially extending convex teeth (12) at equal angles, the inner surface of the sliding sleeve (6) is provided with a plurality of grooves (13) distributed at equal angles, and the convex teeth (12) are matched with the grooves (13).
4. The axial flux permanent magnet speed regulation fan of claim 2, wherein the outer peripheral surface of the sliding sleeve (6) is provided with an annular clamping groove (14), a stirring ring (7) is sleeved in the annular clamping groove (14), and the stirring ring (7) is in clearance fit with the sliding sleeve (6).
5. An axial flux permanent magnet speed regulation fan according to claim 4, characterized in that a poke rod (8) is fixedly connected to the poke ring (7), and the free end of the poke rod (8) extends out of the housing (10).
6. The axial magnetic flux permanent magnet speed regulation fan of claim 5, characterized in that a strip-shaped hole (11) is opened on the housing (10), a poking block (9) is slidably installed in the strip-shaped hole (11), and the bottom of the poking block (9) is fixedly connected with the free end of the poking rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121145528.XU CN215860860U (en) | 2021-05-26 | 2021-05-26 | Axial magnetic flux permanent magnet speed regulation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121145528.XU CN215860860U (en) | 2021-05-26 | 2021-05-26 | Axial magnetic flux permanent magnet speed regulation fan |
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| Publication Number | Publication Date |
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| CN215860860U true CN215860860U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121145528.XU Active CN215860860U (en) | 2021-05-26 | 2021-05-26 | Axial magnetic flux permanent magnet speed regulation fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705024A (en) * | 2022-05-07 | 2022-07-05 | 贵州省华腾农业科技有限公司 | Coix seed powder drying tower and use method thereof |
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2021
- 2021-05-26 CN CN202121145528.XU patent/CN215860860U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114705024A (en) * | 2022-05-07 | 2022-07-05 | 贵州省华腾农业科技有限公司 | Coix seed powder drying tower and use method thereof |
| CN114705024B (en) * | 2022-05-07 | 2023-08-15 | 贵州省华腾农业科技有限公司 | Coix seed powder drying tower and use method |
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