Axial magnetic transmission mechanism of sleeve

Abstract

The utility model belongs to the technical field of magnetic transmission, and particularly relates to a sleeve axial magnetic transmission mechanism which comprises a driving wheel and a driven wheel. The driven wheel is suspended in the accommodating cavity; wherein at least two first two-pole magnetic groups are arranged on the inner wall of the containing cavity, at least two second two-pole magnetic groups are arranged on the outer side wall of the driven wheel, N poles of the first two-pole magnetic groups are arranged in a protruding mode, and S poles of the second two-pole magnetic groups are arranged in a protruding mode; in the rotation process of the driving wheel, the opposite magnetic poles of the first two-pole magnetic group and the second two-pole magnetic group are aligned. The driving wheel and the driven wheel are designed in a sleeve mode, the acting force points of magnetic force are effectively dispersed, the magnetic force coverage range between the driving wheel and the driven wheel which are designed in a sleeve mode is greatly enlarged, the applicability of the transmission device in a large-torque scene is enhanced, the application range of the transmission device in the fields of machinery, automation equipment and the like is expanded, and the practicability and functionality of magnetic transmission are remarkably improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic transmission, and in particular relates to a sleeve axial magnetic transmission mechanism. Background Art

[0002] Existing magnetic transmission devices mainly consist of an active magnetic ring and a driven magnetic ring, both of which are equipped with staggered opposite magnetic poles. The active magnetic ring transmits power through the attraction between the opposite magnetic poles of the driven magnetic ring, driving the driven magnetic ring to rotate.

[0003] Existing magnetic pole arrangements often utilize a circular path design. While this design achieves uniform magnetic field distribution, it also has significant drawbacks. Because the magnetic poles are arranged in a circular pattern, the magnetic force is primarily concentrated on the side that engages the driven magnetic ring, resulting in a low torque-carrying capacity, making it suitable only for applications with low transmission torque requirements.

[0004] Therefore, there is an urgent need for a new type of magnetic transmission device that can improve its torque-bearing capacity and expand its application field. Utility Model Content

[0005] The purpose of the utility model is to provide a sleeve axial magnetic transmission mechanism, which aims to solve the technical problem that the magnetic transmission structure in the prior art has a low torque bearing capacity due to the circular distribution of magnetic poles, and the magnetic force is mainly concentrated on the side engaged with the driven magnetic ring, which makes it only suitable for application scenarios with small transmission torque requirements.

[0006] To achieve the above-mentioned purpose, an embodiment of the present invention provides a sleeve axial magnetic transmission mechanism, including a driving wheel and a driven wheel, wherein a receiving cavity is provided on the driving wheel; the driven wheel is suspended in the receiving cavity; wherein at least two groups of first two-pole magnetic groups are provided on the inner wall of the receiving cavity, and at least two groups of second two-pole magnetic groups are provided on the outer wall of the driven wheel, the N pole of the first two-pole magnetic group is protruding, and the S pole of the second two-pole magnetic group is protruding; during the rotation of the driving wheel, the opposite magnetic poles of the first two-pole magnetic group and the second two-pole magnetic group are aligned.

[0007] Optionally, the first two-pole magnetic group includes a first N-pole magnetic block and a first S-pole magnetic block, and the first N-pole magnetic block and the first S-pole magnetic block are adjacent to and parallel to each other on the inner wall of the accommodating cavity, the thickness of the first N-pole magnetic block is greater than that of the first S-pole magnetic block, and the end of the first N-pole magnetic block extends toward the interior of the accommodating cavity; the second two-pole magnetic group includes a second N-pole magnetic block and a second S-pole magnetic block, and the second N-pole magnetic block and the second S-pole magnetic block are adjacent to and parallel to each other on the inner wall of the accommodating cavity, the thickness of the second S-pole magnetic block is greater than that of the second N-pole magnetic block, and the end of the second S-pole magnetic block extends back to the interior of the accommodating cavity.

[0008] Optionally, a first mounting ring is provided on the inner wall of the accommodating cavity, at least two groups of first mounting grooves are provided on the first mounting ring, the first N-pole magnetic block and the first S-pole magnetic block are both provided on the first mounting grooves, and a gap is provided between two adjacent groups of the first mounting grooves.

[0009] Optionally, a second mounting ring is provided on the outer side wall of the driven wheel, the second mounting ring is provided with at least two groups of second mounting grooves, the second N-pole magnetic block and the second S-pole magnetic block are both provided on the second mounting grooves, and a gap is provided between two adjacent groups of the second mounting grooves.

[0010] Optionally, a gap is provided between the first N-pole magnetic block and the second N-pole magnetic block.

[0011] Optionally, at least two groups of second mounting grooves are provided on the driven wheel, the second N-pole magnetic block and the second S-pole magnetic block are both provided in the second mounting grooves, and the outer side wall of the driven wheel is provided with a smooth end surface.

[0012] Optionally, a gap is provided between the first N-pole magnetic block and the outer side wall of the driven wheel.

[0013] Optionally, the driving wheel is arranged in a circular sleeve-shaped structure, the accommodating cavity is formed in the inner ring of the driving wheel, and the radial cross-section of the driving wheel is arranged in a circular ring-shaped structure; the driven wheel is arranged in a cylindrical structure, the outer diameter of the driven wheel is smaller than the inner diameter of the accommodating cavity, and a gap is provided between the driven wheel and the accommodating cavity for accommodating the first two-pole magnetic group and / or the second two-pole magnetic group.

[0014] Optionally, the driving wheel and the driven wheel are coaxially aligned.

[0015] The above one or more technical solutions in the sleeve axial magnetic transmission mechanism provided by the embodiment of the present invention have at least one of the following technical effects: the magnetic transmission structure adopts a two-pole magnetic group structure with a concave-convex design, so that it can not only form a uniform and continuous magnetic field distribution between the driving wheel and the driven wheel, but also form a "tooth-shaped" magnetic field distribution like gear meshing through the staggered distribution of opposite magnetic poles to form multiple contact points. This design significantly improves the torque transmission efficiency between the driving magnetic wheel and the driven magnetic wheel, and greatly increases the structure's ability to bear torque. Compared with the traditional circular magnetic block path design, this innovation effectively disperses the force points of the magnetic force. At the same time, compared with the traditional horizontal plane alignment magnetic transmission structure, the magnetic coverage range between the driving wheel and the driven wheel of the sleeve design is greatly improved, which not only enhances the applicability of the transmission device in high-torque scenarios, but also expands its application range in machinery, automation equipment and other fields, significantly improving the practicality and functionality of the magnetic transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a cross-sectional view of the sleeve axial magnetic transmission mechanism provided in an embodiment of the present utility model.

[0018] Figure 2 for Figure 1 Internal schematic diagram of the sleeve axial magnetic transmission mechanism.

[0019] Figure 3 This is a schematic structural diagram of the embedded second two-pole magnetic group provided in an embodiment of the present utility model.

[0020] Figure 4 This is a schematic diagram of the application of the sleeve axial magnetic transmission mechanism provided in an embodiment of the present utility model.

[0021] Among them, the reference numerals in the figures are:

[0022] 100—driving wheel 200—driven wheel 300—accommodating cavity

[0023] 400 - first two-pole magnetic group 500 - second two-pole magnetic group 330 - first mounting ring

[0024] 420 - first S-pole magnetic block 410 - first N-pole magnetic block 210 - second mounting ring

[0025] 510 —Second N-pole magnetic block 520 —Second S-pole magnetic block. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1 to 4 The described embodiments are exemplary and are intended to explain the embodiments of the present invention, but should not be understood as limiting the present invention.

[0027] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0029] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0030] In one embodiment of the present invention, Figures 1 to 3 As shown, a sleeve axial magnetic transmission mechanism is provided, including a driving wheel 100 and a driven wheel 200, wherein the driving wheel 100 is provided with a receiving cavity 300; the driven wheel 200 is suspended in the receiving cavity 300; wherein, at least two groups of first two-pole magnetic groups 400 are provided on the inner wall of the receiving cavity 300, and at least two groups of second two-pole magnetic groups 500 are provided on the outer wall of the driven wheel 200, the N pole of the first two-pole magnetic group 400 is protruding, and the S pole of the second two-pole magnetic group 500 is protruding; during the rotation of the driving wheel 100, the opposite magnetic poles of the first two-pole magnetic group 400 and the second two-pole magnetic group 500 are aligned.

[0031] Specifically, the magnetic transmission structure adopts a two-pole magnetic group structure with a concave-convex design, which not only forms a uniform and continuous magnetic field distribution between the driving wheel 100 and the driven wheel 200, but also forms multiple contact points through the staggered distribution of opposite magnetic poles, forming a "tooth-shaped" magnetic field distribution like gear meshing. This design significantly improves the torque transmission efficiency between the driving magnetic wheel and the driven magnetic wheel, and greatly increases the structure's ability to bear torque. Compared with the traditional circular magnetic block path design, this innovation effectively disperses the points of magnetic force. At the same time, compared with the traditional horizontal plane alignment magnetic transmission structure, the magnetic coverage range between the driving wheel 100 and the driven wheel 200 with a sleeve-type design is greatly improved, which not only enhances the applicability of the transmission device in high-torque scenarios, but also expands its application range in machinery, automation equipment and other fields, significantly improving the practicality and functionality of the magnetic transmission.

[0032] like Figures 1 to 3 As shown, in another embodiment of the present invention, the first two-pole magnetic group 400 includes a first N-pole magnetic block 410 and a first S-pole magnetic block 420, and the first N-pole magnetic block 410 and the first S-pole magnetic block 420 are adjacently arranged in parallel on the inner wall of the accommodating cavity 300, the thickness of the first N-pole magnetic block 410 is greater than that of the first S-pole magnetic block 420, and the end of the first N-pole magnetic block 410 extends toward the interior of the accommodating cavity 300; the second two-pole magnetic group 500 includes a second N-pole magnetic block 510 and a second S-pole magnetic block 520, the second N-pole magnetic block 510 and the second S-pole magnetic block 520 are adjacently arranged in parallel on the inner wall of the accommodating cavity 300, the thickness of the second S-pole magnetic block 520 is greater than that of the second N-pole magnetic block 510, and the end of the second S-pole magnetic block 520 extends back to the interior of the accommodating cavity 300.

[0033] Specifically, in the first two-pole magnetic group 400, the N pole is arranged in a convex structure, and in the second two-pole magnetic group 500, the S pole is arranged in a convex structure, wherein the first two-pole magnetic group 400 and the second two-pole magnetic group 500 are arranged in a mirror-symmetrical structure. When the driven wheel 200 is located in the accommodating cavity 300, the first two-pole magnetic group 400 and the second two-pole magnetic group 500 are fitted in a building block shape. Through the preset gap setting, the first two-pole magnetic group 400 and the second two-pole magnetic group 500 can rotate relative to each other, so as to prevent the first two-pole magnetic group 400 and the second two-pole magnetic group 500 from causing collision due to relative movement when stopping or starting to rotate.

[0034] like Figures 1 to 3As shown, in another embodiment of the present invention, a first mounting ring 330 is provided on the inner wall of the accommodating cavity 300, and at least two groups of first mounting grooves are provided on the first mounting ring 330. The first N-pole magnetic block 410 and the first S-pole magnetic block 420 are both provided on the first mounting grooves, and a gap is provided between two adjacent groups of the first mounting grooves.

[0035] Specifically, there are multiple groups of the first mounting grooves, and all the first mounting grooves are evenly spaced along the inner wall of the accommodating cavity 300 . Using multiple groups of first mounting grooves is beneficial to improving the magnetic attraction strength of the driving wheel 100 and the driven wheel 200 .

[0036] like Figures 1 to 3 As shown, in another embodiment of the present invention, a second mounting ring 210 is provided on the outer wall of the driven wheel 200. The second mounting ring 210 is provided with at least two groups of second mounting grooves. The second N-pole magnetic block 510 and the second S-pole magnetic block 520 are both provided in the second mounting grooves, and a gap is provided between two adjacent groups of the second mounting grooves. In this embodiment, the use of the mounting ring to install the second N-pole magnetic block 510 and the second S-pole magnetic block 520 helps to improve the installation stability of the second two-pole magnetic group 500, thereby preventing the second two-pole magnetic group 500 from loosening. The second mounting ring 210 is formed of a non-magnetic metal or plastic material to prevent the magnetic fields of the two adjacent second two-pole magnetic groups 500 from interfering with each other.

[0037] like Figures 1 to 3 As shown, in another embodiment of the present invention, a gap is provided between the first N-pole magnetic block 410 and the second N-pole magnetic block 510. Since the first N-pole magnetic block 410 and the second N-pole magnetic block 510 are protruding structures, when the rotation paths of the first N-pole magnetic block 410 and the second N-pole magnetic block 510 are independently provided and do not interfere with each other, the collision between the driving wheel 100 and the driven wheel 200 can be effectively prevented, thereby improving the smoothness of the magnetic transmission.

[0038] like Figures 1 to 3 As shown, in another embodiment of the present invention, at least two groups of second mounting grooves are provided on the driven wheel 200, and the second N-pole magnetic block 510 and the second S-pole magnetic block 520 are both provided in the second mounting grooves. The outer side wall of the driven wheel 200 is provided with a smooth end surface, and the second two-pole magnetic group 500 is installed with an embedded structure, which is beneficial to reducing the mass of the driven wheel 200 and achieving structural optimization.

[0039] In this embodiment, a gap is provided between the first N-pole magnetic block 410 and the outer side wall of the driven wheel 200. The outermost side wall of the driven wheel 200 and the rotation path of the first N-pole magnetic block 410 are independent of each other, which can effectively prevent the driving wheel 100 and the driven wheel 200 from colliding.

[0040] like Figures 1 to 3 As shown, in another embodiment of the present invention, the driving wheel 100 is arranged in a circular sleeve-like structure, the accommodating cavity 300 is formed in the inner ring of the driving wheel 100, and the radial cross-section of the driving wheel 100 is arranged in a circular ring-like structure; the driven wheel 200 is arranged in a cylindrical structure, the outer diameter of the driven wheel 200 is smaller than the inner diameter of the accommodating cavity 300, and a gap for accommodating the first two-pole magnetic group 400 and / or the second two-pole magnetic group 500 is provided between the driven wheel 200 and the accommodating cavity 300. Using a concentric sleeve-like structure as the overall structure of the driving wheel 100 and the driven wheel 200 is beneficial to improving the uniformity of the magnetic force distribution, thereby effectively improving the operating stability of the magnetic transmission mechanism, and preventing the driving wheel 100 and the driven wheel 200 from being subjected to uneven force during rotation.

[0041] In another embodiment of the present invention, the driving wheel 100 and the driven wheel 200 are coaxially aligned. In other embodiments, the driving wheel 100 and the driven wheel 200 can be eccentrically arranged to adapt to specific scenarios, such as serving as a vibration source of a vibrating structure.

[0042] In another embodiment of the present invention, Figure 4 As shown, the driving wheel 100 and the driven wheel 200 are respectively mounted on a driving source and a load unit, wherein the load unit is a fan and the driving source is a driving motor.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sleeve axial magnetic transmission mechanism, characterized in that: include: A driving wheel, wherein the driving wheel is provided with a receiving cavity; A driven wheel, the driven wheel is suspended in the accommodating cavity; In which, at least two groups of first two-pole magnetic groups are arranged on the inner wall of the accommodating cavity, and at least two groups of second two-pole magnetic groups are arranged on the outer wall of the driven wheel, the N pole of the first two-pole magnetic group is protruding, and the S pole of the second two-pole magnetic group is protruding; during the rotation of the driving wheel, the opposite poles of the first two-pole magnetic group and the second two-pole magnetic group are aligned.

2. The sleeve axial magnetic transmission mechanism according to claim 1, characterized in that: The first two-pole magnetic group includes a first N-pole magnetic block and a first S-pole magnetic block, and the first N-pole magnetic block and the first S-pole magnetic block are adjacently arranged in parallel on the inner wall of the accommodating cavity, the thickness of the first N-pole magnetic block is greater than that of the first S-pole magnetic block, and the end of the first N-pole magnetic block extends toward the interior of the accommodating cavity; the second two-pole magnetic group includes a second N-pole magnetic block and a second S-pole magnetic block, and the second N-pole magnetic block and the second S-pole magnetic block are adjacently arranged in parallel on the inner wall of the accommodating cavity, the thickness of the second S-pole magnetic block is greater than that of the second N-pole magnetic block, and the end of the second S-pole magnetic block extends back to the interior of the accommodating cavity.

3. The sleeve axial magnetic transmission mechanism according to claim 2, characterized in that: A first mounting ring is provided on the inner wall of the accommodating cavity. At least two groups of first mounting grooves are provided on the first mounting ring. The first N-pole magnetic block and the first S-pole magnetic block are both provided on the first mounting grooves. A gap is provided between two adjacent groups of the first mounting grooves.

4. The sleeve axial magnetic transmission mechanism according to claim 3, characterized in that: A second mounting ring is provided on the outer side wall of the driven wheel, and the second mounting ring is provided with at least two groups of second mounting grooves. The second N-pole magnetic block and the second S-pole magnetic block are both provided on the second mounting grooves, and a gap is provided between two adjacent groups of the second mounting grooves.

5. The sleeve axial magnetic transmission mechanism according to claim 4, characterized in that: A gap is provided between the first N-pole magnetic block and the second N-pole magnetic block.

6. The sleeve axial magnetic transmission mechanism according to claim 3, characterized in that: At least two groups of second mounting grooves are provided on the driven wheel, the second N-pole magnetic block and the second S-pole magnetic block are both provided in the second mounting grooves, and the outer side wall of the driven wheel is provided with a smooth end surface.

7. The sleeve axial magnetic transmission mechanism according to claim 6, characterized in that: A gap is provided between the first N-pole magnetic block and the outer side wall of the driven wheel.

8. The sleeve axial magnetic transmission mechanism according to any one of claims 1 to 7, characterized in that: The driving wheel is arranged in a circular sleeve-shaped structure, the accommodating cavity is formed in the inner ring of the driving wheel, and the radial cross-section of the driving wheel is arranged in a circular ring-shaped structure; the driven wheel is arranged in a cylindrical structure, the outer diameter of the driven wheel is smaller than the inner diameter of the accommodating cavity, and a gap is provided between the driven wheel and the accommodating cavity for accommodating the first two-pole magnetic group and / or the second two-pole magnetic group.

9. The sleeve axial magnetic transmission mechanism according to claim 8, characterized in that: The driving wheel and the driven wheel are coaxially aligned.

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