CN220775619U - Magnetic field modulation type permanent magnet coupler - Google Patents
Magnetic field modulation type permanent magnet coupler Download PDFInfo
- Publication number
- CN220775619U CN220775619U CN202320991377.2U CN202320991377U CN220775619U CN 220775619 U CN220775619 U CN 220775619U CN 202320991377 U CN202320991377 U CN 202320991377U CN 220775619 U CN220775619 U CN 220775619U
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- shell
- permanent magnet
- rotor
- magnetic field
- driving
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- 239000004020 conductor Substances 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims abstract 2
- 238000009434 installation Methods 0.000 claims description 25
- 230000008859 change Effects 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
The utility model discloses a magnetic field modulation type permanent magnet coupler which comprises a shell, wherein one side of the outer surface of the shell is fixedly connected with a mounting shell, the outer wall of one side of the mounting shell is provided with a driving shaft penetrating into the shell, the tail end of the driving shaft is fixedly connected with a spline shaft, the outer surface of the spline shaft is in sliding sleeve connection with an outer rotor, the inner surface of the outer rotor is fixedly inlaid with a plurality of outer permanent magnets, the inner rotor is arranged in the outer rotor, the outer surface of the inner rotor is fixedly inlaid with a plurality of inner permanent magnets and a conductor ring, and the inner surface of the inner rotor is fixedly connected with an output shaft. According to the utility model, through the driving assembly, the push-pull assembly, the outer rotor, the inner rotor, the conductor ring, the outer permanent magnet and the inner permanent magnet, when the driving rotation speed of the permanent magnet coupler driving motor changes, the coupling magnetic field modulation is adopted to assist in controlling the output rotation speed, so that the permanent magnet energy conversion rate is increased and the magnetic loss is reduced while the constant speed change is ensured.
Description
Technical Field
The utility model relates to the technical field of permanent magnet couplers, in particular to a magnetic field modulation type permanent magnet coupler.
Background
The permanent magnet coupler is also called a magnetic coupler and mainly comprises three parts, namely a copper rotor, a permanent magnet rotor and a controller. In general, a copper rotor is connected to a motor shaft, a permanent magnet rotor is connected to a shaft of a working machine, an air gap is provided between the copper rotor and the permanent magnet rotor, and no mechanical connection for transmitting torque is provided. Thus, a magnetic connection is formed between the motor and the working machine, and the change of the torque and the rotating speed of the working machine shaft is realized by adjusting an air gap;
the existing magnetic field modulation type permanent magnet coupler utilizes the squirrel-cage asynchronous motor principle to ensure constant speed change of an output shaft, and in the practical application process, compared with a permanent magnet with the same size as a non-magnetic field modulation type permanent magnet coupler, the permanent magnet has increased magnetic loss, so that the transmitted torque is small and the energy conversion rate is low under the same energy.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a magnetic field modulation type permanent magnet coupler.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a magnetic field modulation formula permanent magnet coupler, includes the casing, surface one side fixedly connected with installation shell of casing, one side outer wall of installation shell is equipped with the drive shaft that runs through to the casing inside, the terminal fixedly connected with integral key shaft of drive shaft, the surface sliding sleeve of integral key shaft has the external rotor, the internal surface fixed of external rotor has inlayed a plurality of outer permanent magnets, the inside of external rotor is equipped with the inner rotor, the external surface fixed of inner rotor has inlayed a plurality of interior permanent magnets and a conductor ring, the internal surface fixed of inner rotor is connected with the output shaft, install push-pull subassembly jointly between installation shell and the external rotor, install drive assembly jointly between push-pull subassembly and the installation shell.
Further, push-and-pull subassembly includes two lead screws, and rotates between lead screw and the installation shell to be connected, two the surface joint screw thread of lead screw has cup jointed movable rod, and the movable rod runs through the inner wall of installation shell and extends to the inner wall of casing and with install sliding connection between the shell, can drive movable rod and remove when the lead screw rotates, be convenient for promote the expansion ring and remove.
Further, the tail ends of the two movable rods are fixedly connected with movable rings, the movable rings are rotationally connected with the outer rotor, and the movable rings can drive the outer rotor to rotate when being pushed.
Further, the driving assembly comprises a toothed ring, the toothed ring is connected with the installation shell in a rotating mode, two first gears are connected to the inner surface of the toothed ring in a meshed mode, the first gears are fixedly sleeved on the outer surfaces of the adjacent screw rods, and the toothed ring can synchronously drive the two first gears to rotate when rotating, so that the driving of the push-pull assembly is facilitated.
Further, the drive assembly further comprises a shielding shell, the shielding shell is fixedly arranged on the inner wall of the installation shell, a stepping motor is fixedly arranged in the shielding shell, the driving end of the stepping motor penetrates through the shielding shell and is fixedly connected with a second gear, the second gear is meshed with the toothed ring, and the stepping motor provides kinetic energy for the drive assembly.
Furthermore, the driving shaft is rotationally connected with the mounting shell, and a bearing is jointly mounted between the driving shaft and the mounting shell and has a supporting effect on the driving shaft, so that the driving shaft is mounted conveniently.
Furthermore, the output shaft penetrates through the shell and is rotationally connected with the shell, and the output shaft is rotationally connected with the shell through a bearing.
The utility model has the beneficial effects that:
when the permanent magnet coupler is used, through the arranged driving assembly, push-pull assembly, outer rotor, inner rotor, conductor ring, outer permanent magnet and inner permanent magnet, when the driving rotation speed of the driving motor of the permanent magnet coupler changes, the coupling magnetic field modulation is adopted to assist in controlling the output rotation speed, so that the permanent magnet energy conversion rate is increased and the magnetic loss is reduced while the constant speed change is ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
fig. 3 is an enlarged view of fig. 2 a in accordance with the present utility model.
Legend description:
1. a housing; 2. a mounting shell; 3. a drive shaft; 4. a shield case; 5. a second gear; 6. a spline shaft; 7. a conductor ring; 8. a toothed ring; 9. a movable rod; 10. a movable ring; 11. an outer permanent magnet; 12. an inner rotor; 13. an output shaft; 14. an inner permanent magnet; 15. a first gear; 16. a screw rod; 17. and (3) an outer rotor.
Detailed Description
Fig. 1 to 3 show, relate to a magnetic field modulation type permanent magnet coupler, including casing 1, the surface one side fixedly connected with installation shell 2 of casing 1, one side outer wall of installation shell 2 is equipped with and runs through to the inside drive shaft 3 of casing 1, the end fixedly connected with spline shaft 6 of drive shaft 3, the surface slip of spline shaft 6 cup joints external rotor 17, the internal surface fixed mosaic of external rotor 17 has a plurality of outer permanent magnets 11, the inside of external rotor 17 is equipped with inner rotor 12, the surface fixed mosaic of inner rotor 12 has a plurality of interior permanent magnets 14 and a conductor ring 7, the internal surface fixed connection of inner rotor 12 has output shaft 13, install push-pull subassembly jointly between installation shell 2 and the external rotor 17, install drive assembly jointly between push-pull subassembly and the installation shell 2.
As shown in fig. 1 and 2, the drive shaft 3 is rotatably connected to the mounting case 2.
And a bearing is commonly arranged between the driving shaft 3 and the mounting shell 2, the inner ring of the bearing is fixedly connected with the driving shaft 3, the outer ring of the bearing is fixedly arranged with the mounting shell 2, and the bearing has a supporting effect on the driving shaft 3, is beneficial to the mounting of the driving shaft 3, and reduces the friction force when the driving shaft 3 rotates.
The output shaft 13 penetrates the housing 1 and is rotatably connected thereto.
The bearing is commonly installed between the output shaft 13 and the shell 1, the bearing inner ring is fixedly connected with the output shaft 13, the bearing outer ring is fixedly installed with the shell 1, the bearing has a supporting effect on the output shaft 13, the installation of the output shaft 13 is facilitated, and meanwhile friction force generated when the output shaft 13 rotates is reduced.
As shown in fig. 2 and 3, the push-pull assembly includes two screw rods 16, the screw rods 16 are rotatably connected with the installation shell 2, the outer surfaces of the two screw rods 16 are in threaded joint with a movable rod 9, and the movable rod 9 penetrates through the inner wall of the installation shell 2, extends to the inner wall of the shell 1 and is slidably connected with the installation shell 2.
The tail ends of the two movable rods 9 are fixedly connected with a movable ring 10, and the movable ring 10 is rotationally connected with an outer rotor 17.
When the driving assembly drives the two screw rods 16 to rotate, the two movable rods 9 can be synchronously driven to move, so that the outer rotor 17 can be driven to move through the movable ring 10.
Because the two movable rods 9 are both in sliding connection with the mounting shell 2 and are fixedly connected with the movable ring 10, the two movable rods 9 are limited, and the movable rods 9 are driven to move by the screw rod 16.
The driving assembly comprises a toothed ring 8, the toothed ring 8 is rotationally connected with the mounting shell 2, two first gears 15 are connected with the inner surface of the toothed ring 8 in a meshed mode, and the first gears 15 are fixedly sleeved on the outer surfaces of adjacent screw rods 16.
The driving assembly further comprises a shielding shell 4, the shielding shell 4 is fixedly arranged on the inner wall of the installation shell 2, a stepping motor is fixedly arranged in the shielding shell 4, the driving end of the stepping motor penetrates through the shielding shell 4 and is fixedly connected with a second gear 5, and the second gear 5 is in meshed connection with the toothed ring 8.
The stepping motor drives the second gear 5 to rotate, and the second gear 5 drives the toothed ring 8 to rotate, so that the two screw rods 16 are synchronously driven to rotate through the two first gears 15.
The shielding shell 4 has the function of assisting frequency closing magnetic interference, and ensures the normal use of the stepping motor.
Working principle: the external driving motor is in transmission connection with the driving shaft 3, the output shaft 13 is connected with a load, the driving shaft 3 is driven to rotate by the external driving motor in daily use, the driving shaft 3 drives the outer rotor 17 to rotate by the spline shaft 6, and the outer rotor 17 drives the inner rotor 12 to rotate by the cooperation of the outer permanent magnet 11, the inner permanent magnet 14 and the conductor ring 7, so that the load is driven to operate by the output shaft 13; when the external driving motor changes speed, the stepping motor is synchronously started, the second gear 5 is driven by the stepping motor to rotate, the toothed ring 8 is driven by the second gear 5 to rotate, so that the two screw rods 16 are synchronously driven by the two first gears 15, the movable rod 9 is driven by the screw rods 16 to move, the outer rotor 17 can be driven by the movable ring 10 to move along the spline shaft 6, the coupling magnetic field between the outer permanent magnet 11 and the inner permanent magnet 14 and between the outer permanent magnet 11 and the conductor ring 7 is reduced, the rotating speed of the output shaft 13 is regulated, the reduction and inertia of the output shaft 13 and the rotating speed of the external driving motor are complemented, so that the output rotating speed of the output shaft 13 is less, then the stepping motor is reversed, and then the coupling magnetic field between the outer permanent magnet 11 and the inner permanent magnet 14 and between the conductor ring 7 is increased through the matching of the driving component and the push-pull component until the required rotating speed is reached, and constant speed is realized.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. A magnetic field modulation type permanent magnet coupler, comprising a housing (1), characterized in that: the novel electric motor is characterized in that an installation shell (2) is fixedly connected to one side of the outer surface of the shell (1), a driving shaft (3) penetrating through the inside of the shell (1) is arranged on the outer wall of one side of the installation shell (2), a spline shaft (6) is fixedly connected to the tail end of the driving shaft (3), an outer rotor (17) is sleeved on the outer surface of the spline shaft (6) in a sliding mode, a plurality of outer permanent magnets (11) are fixedly inlaid on the inner surface of the outer rotor (17), an inner rotor (12) is arranged in the outer rotor (17), a plurality of inner permanent magnets (14) and a conductor ring (7) are fixedly inlaid on the outer surface of the inner rotor (12), an output shaft (13) is fixedly connected to the inner surface of the inner rotor (12), a push-pull assembly is jointly installed between the installation shell (2) and the outer rotor (17), and a driving assembly is jointly installed between the push-pull assembly and the installation shell (2).
2. A magnetic field modulated permanent magnet coupler according to claim 1, characterized in that: the push-pull assembly comprises two screw rods (16), the screw rods (16) are rotationally connected with the installation shell (2), the outer surfaces of the screw rods (16) are connected with the movable rods (9) in a threaded mode in a sleeved mode, and the movable rods (9) penetrate through the inner wall of the installation shell (2) to extend to the inner wall of the shell (1) and are connected with the installation shell (2) in a sliding mode.
3. A magnetic field modulated permanent magnet coupler according to claim 2, characterized in that: the tail ends of the two movable rods (9) are fixedly connected with movable rings (10) together, and the movable rings (10) are rotationally connected with the outer rotor (17).
4. A magnetic field modulated permanent magnet coupler according to claim 2, characterized in that: the driving assembly comprises a toothed ring (8), the toothed ring (8) is rotationally connected with the mounting shell (2), two first gears (15) are connected to the inner surface of the toothed ring (8) in a meshed mode, and the first gears (15) are fixedly sleeved on the outer surfaces of adjacent screw rods (16).
5. A magnetic field modulated permanent magnet coupler according to claim 3, wherein: the driving assembly further comprises a shielding shell (4), the shielding shell (4) is fixedly arranged on the inner wall of the installation shell (2), a stepping motor is fixedly arranged in the shielding shell (4), the driving end of the stepping motor penetrates through the shielding shell (4) and is fixedly connected with a second gear (5), and the second gear (5) is meshed with the toothed ring (8).
6. A magnetic field modulated permanent magnet coupler according to claim 1, characterized in that: the driving shaft (3) is rotatably connected with the mounting shell (2).
7. A magnetic field modulated permanent magnet coupler according to claim 1, characterized in that: the output shaft (13) penetrates through the shell (1) and is rotationally connected with the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320991377.2U CN220775619U (en) | 2023-04-27 | 2023-04-27 | Magnetic field modulation type permanent magnet coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320991377.2U CN220775619U (en) | 2023-04-27 | 2023-04-27 | Magnetic field modulation type permanent magnet coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220775619U true CN220775619U (en) | 2024-04-12 |
Family
ID=90602863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320991377.2U Active CN220775619U (en) | 2023-04-27 | 2023-04-27 | Magnetic field modulation type permanent magnet coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220775619U (en) |
-
2023
- 2023-04-27 CN CN202320991377.2U patent/CN220775619U/en active Active
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