Hybrid non-contact magnetic transmission coupling
By adding axial magnetic poles to the magnetic coupling, the combination of radial and axial transmission is achieved, solving the problem of low torque of the existing magnetic coupling and improving the transmission efficiency and torque force.
Patent Information
- Application Number
- CN202420368542.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The existing magnetic couplings can only perform radial transmission, with low torque and cannot meet the transmission requirements when the torque is insufficient.
A hybrid non-contact magnetic transmission coupling is designed, and axial transmission can be performed while adding axial magnetic poles to the magnetic coupling.
It is achieved to increase torque force without increasing friction loss, and improve transmission efficiency, meeting the transmission needs when the torque is insufficient.
Smart Images

Figure CN222602244U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of couplings, in particular to a hybrid non-contact magnetic transmission coupling. Background Art
[0002] A magnetic coupling is a contactless mechanical device used to connect two shafts and achieve rotational transmission. It uses the interaction of magnetic fields to transmit torque and motion through magnetic force without the use of traditional mechanical connectors such as gears, couplings, etc. A magnetic coupling usually consists of an external rotor and an internal rotor, the external rotor is connected to one shaft and the internal rotor is connected to the other shaft. When the external rotor rotates, the internal rotor will also rotate, thereby achieving rotational transmission between the shafts.
[0003] The existing magnetic coupling can only perform radial transmission when in use, and the torque is low, so we propose a hybrid non-contact magnetic transmission coupling. If the torque is not enough, a hybrid magnetic coupling is used. The hybrid magnetic coupling adds a set of axial magnetic poles, which can realize radial transmission while also realizing axial transmission. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the existing magnetic coupling that it can only perform radial transmission and has low torque when in use, and to propose a hybrid non-contact magnetic transmission coupling. If the torque is insufficient, a hybrid magnetic coupling is used. The hybrid magnetic coupling adds a group of axial magnetic poles, which can realize radial transmission and axial transmission at the same time.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A hybrid non-contact magnetic transmission coupling comprises a protective cover and a positioning roller, wherein the positioning roller is located inside the protective cover, a magnetic outer rotor is fixedly mounted on the inner wall of the protective cover, a magnetic inner rotor is fixedly mounted on the outer side of the positioning roller, a mounting mechanism is provided on the protective cover, an isolation cover is fixedly mounted on the right side of the protective cover, a transmission shaft is mounted on one side of the isolation cover, a mounting seat is fixedly mounted on the right side of the positioning roller, a torque magnetic ring is mounted on the right side of the mounting seat, an adjusting magnetic ring is provided on the right inner wall of the isolation cover, a driving shaft is mounted on the right side of the positioning roller, and an output shaft is mounted on one side of the isolation cover.
[0007] Preferably, the mounting mechanism includes a mounting plate, which is slidably mounted on the outside of the isolation cover, and the right side of the positioning roller is rotatably connected to the positioning plate. A plurality of threaded holes are provided on the positioning plate and the protective cover, and a plurality of bolts are threadedly connected on the mounting plate, and the bolts are threadedly connected to the threaded holes on the positioning plate and the protective cover.
[0008] Preferably, a cover plate is fixedly mounted on the left side of the positioning roller, and the cover plate cooperates with the protective cover.
[0009] Preferably, a sealing plate is installed on the left side of the cover plate, and the sealing plate cooperates with the protective cover.
[0010] Compared with the prior art, the advantages of the utility model are:
[0011] The magnetic coupling of this scheme uses the interaction of magnetic fields to transmit torque without direct contact with the shaft, avoiding the wear and friction losses in traditional couplings.
[0012] High-efficiency transmission: The magnetic coupling has high transmission efficiency. Due to the lack of friction loss, energy conversion is more efficient and energy waste is reduced.
[0013] Adjustability: By adjusting the magnetic field strength and current size, the torque can be precisely controlled to meet different working conditions and requirements.
[0014] No lubrication required: Since there are no direct contact parts, magnetic couplings do not require the use of lubricants, reducing maintenance and servicing work.
[0015] If the torque is not enough, a hybrid magnetic coupling is used. The hybrid magnetic coupling adds a set of axial magnetic poles, which can realize radial transmission while also realizing axial transmission.
[0016] The utility model has the advantages of contactless transmission, high-efficiency transmission, adjustability and no need for lubrication, etc., improves energy efficiency, reduces maintenance work, increases axial transmission, and increases torque. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a structural schematic diagram of a hybrid non-contact magnetic transmission coupling proposed by the utility model;
[0018] Figure 2 The utility model provides a schematic diagram of the side structure of an isolation cover of a hybrid non-contact magnetic transmission coupling.
[0019] In the figure: 1. Protective cover; 2. Positioning roller; 3. Magnetic inner rotor; 4. Magnetic outer rotor; 5. Positioning plate; 6. Cover plate; 7. Isolation cover; 8. Mounting seat; 9. Torque magnetic ring; 10. Adjustment magnetic ring; 11. Threaded hole; 12. Mounting plate; 13. Bolt; 14. Output shaft; 15. Sealing plate; 16. Driving shaft. DETAILED DESCRIPTION
[0020] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all of the embodiments.
[0021] Example
[0022] Reference Figure 1-Figure 2 A hybrid non-contact magnetic transmission coupling comprises a protective cover 1 and a positioning roller 2, the positioning roller 2 is located in the protective cover 1, a magnetic outer rotor 4 is fixedly mounted on the inner wall of the protective cover 1, a magnetic inner rotor 3 is fixedly mounted on the outer side of the positioning roller 2, a mounting mechanism is provided on the protective cover 1, an isolation cover 7 is fixedly mounted on the right side of the protective cover 1, a transmission shaft is mounted on one side of the isolation cover 7, a mounting seat 8 is fixedly mounted on the right side of the positioning roller 2, a torque magnetic ring 9 is mounted on the right side of the mounting seat 8, an adjusting magnetic ring 10 is provided on the right inner wall of the isolation cover 7, a driving shaft 16 is mounted on the right side of the positioning roller 2, an output shaft 14 is mounted on one side of the isolation cover 7, a cover plate 6 is fixedly mounted on the left side of the positioning roller 2, the cover plate 6 cooperates with the protective cover 1, a sealing plate 15 is mounted on the left side of the cover plate 6, and the sealing plate 15 cooperates with the protective cover 1.
[0023] In this embodiment, the mounting mechanism includes a mounting plate 12, which is slidably mounted on the outer side of the isolation cover 7. The right side of the positioning roller 2 is rotatably connected to the positioning plate 5. The positioning plate 5 and the protective cover 1 are both provided with a plurality of threaded holes 11. The mounting plate 12 is threadedly connected with a plurality of bolts 13, and the bolts 13 are threadedly connected to the threaded holes 11 on the positioning plate 5 and the protective cover 1.
[0024] Working principle, the working principle of the magnetic coupling is based on the interaction of magnetic forces and the transmission of magnetic fields. It is usually composed of permanent magnets and electromagnetic coils. When the external rotor rotates, the magnetic field interacts to generate magnetic force to transmit torque to the internal rotor. This magnetic force is generated by the interaction between the permanent magnets and the electromagnetic coils. The permanent magnets on the external rotor will generate a static magnetic field, while the electromagnetic coils on the internal rotor will generate a variable magnetic field by applying current. When the magnetic fields of the two interact, an attractive force will be generated, so that the rotational power of the external rotor is transmitted to the internal rotor. The magnetic coupling can control the transmission of torque by adjusting the magnetic field strength and the number of magnetic poles of the external rotor or the internal rotor, as well as the current in the electromagnetic coil. This adjustability enables the magnetic coupling to adapt to different working conditions and requirements. The positioning plate 5 and the protective cover 1 are threadedly connected through the bolts 13 on the mounting plate 12 and the threaded holes 11, so that the installation operation can be realized. At the same time, the setting of the cover plate 6 and the sealing plate 15 can isolate and seal the protective cover 1. The setting of the torque magnetic ring 9 and the adjustment magnetic ring 10 can increase the axial transmission of the driving shaft 16 and the output shaft 14, thereby increasing the torque of the device.
[0025] The above is only a preferred specific implementation of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, which should be covered by the protection scope of this embodiment.
Claims
1. A hybrid non-contact magnetic transmission coupling, comprising a protective cover (1) and a positioning roller (2), wherein the positioning roller (2) is located inside the protective cover (1), characterized in that: A magnetic outer rotor (4) is fixedly mounted on the inner wall of the protective cover (1), a magnetic inner rotor (3) is fixedly mounted on the outer side of the positioning roller (2), a mounting mechanism is provided on the protective cover (1), an isolation cover (7) is fixedly mounted on the right side of the protective cover (1), a transmission shaft is mounted on one side of the isolation cover (7), a mounting seat (8) is fixedly mounted on the right side of the positioning roller (2), a torque magnetic ring (9) is mounted on the right side of the mounting seat (8), an adjusting magnetic ring (10) is provided on the right inner wall of the isolation cover (7), a driving shaft (16) is mounted on the right side of the positioning roller (2), and an output shaft (14) is mounted on one side of the isolation cover (7).
2. A hybrid non-contact magnetic transmission coupling according to claim 1, characterized in that: The mounting mechanism comprises a mounting plate (12), the mounting plate (12) being slidably sleeved on the outer side of the isolation cover (7), the right side of the positioning roller (2) being rotatably connected to a positioning plate (5), a plurality of threaded holes (11) being provided on the positioning plate (5) and the protective cover (1), a plurality of bolts (13) being threadedly connected on the mounting plate (12), and the bolts (13) being threadedly connected to the threaded holes (11) on the positioning plate (5) and the protective cover (1).
3. A hybrid non-contact magnetic transmission coupling according to claim 2, characterized in that: A cover plate (6) is fixedly mounted on the left side of the positioning roller (2), and the cover plate (6) cooperates with the protective cover (1).
4. A hybrid non-contact magnetic transmission coupling according to claim 3, characterized in that: A sealing plate (15) is installed on the left side of the cover plate (6), and the sealing plate (15) cooperates with the protective cover (1).