Stepless adjustable transmission torque magnetic coupling

Abstract

The invention relates to a stepless adjustable transmission torque magnetic coupling, and relates to the technical field of magnetic couplings. The outer magnetic assembly is coaxially arranged on the inner magnetic assembly in a sleeving mode, and a gap always exists between the inner magnetic assembly and the outer magnetic assembly; wherein the inner magnetic assembly comprises a rotating shaft, and the rotating shaft is coaxially sleeved with the outer magnetic assembly; the three first sliding blocks are circumferentially, uniformly and slidably mounted at one end, far away from the outer magnetic assembly, of the rotating shaft; the three inner magnets are fixedly installed on the three first sliding blocks correspondingly, the three inner magnets are all arc-shaped plates, and gaps exist between the three inner magnets and the outer magnetic assembly all the time; and the adjusting piece is installed on the rotating shaft, and the adjusting piece is used for adjusting the position of the inner magnet. The magnetic coupling has the effect of improving the adaptability of the magnetic coupling.

Description

Technical Field

[0001] The present application relates to the technical field of magnetic couplings, and in particular to a magnetic coupling with stepless adjustable transmission torque. Background Art

[0002] Magnetic coupling is a new type of coupling that connects the prime mover and the working machine through the magnetic force of the magnet. It does not require direct mechanical connection, but uses the interaction between magnets and the ability of the magnetic field to penetrate a certain spatial distance and the characteristics of material to transfer mechanical energy.

[0003] In existing magnetic couplings, the air gap between the magnets is fixed, and the maximum torque that can be transmitted cannot be adjusted.

[0004] With regard to the above-mentioned related technologies, at present, the air gap between the inner and outer magnets of the magnetic coupling is fixed, the transmission torque cannot be adjusted, and it cannot cope with various working conditions in production conditions, and has poor adaptability. Summary of the invention

[0005] In order to improve the adaptability of the magnetic coupling, the present application provides a magnetic coupling with stepless adjustable transmission torque.

[0006] The present application provides a magnetic coupling with stepless adjustable transmission torque, which adopts the following technical solution: A magnetic coupling with stepless adjustable transmission torque, comprising: External magnetic assembly; An inner magnetic assembly, the outer magnetic assembly is coaxially sleeved on the inner magnetic assembly, and there is always a gap between the inner magnetic assembly and the outer magnetic assembly; Wherein, the internal magnetic component comprises: A rotating shaft, wherein the outer magnetic assembly is coaxially sleeved on the rotating shaft; Three first sliders, the three first sliders are circumferentially uniformly slidably mounted on one end of the rotating shaft away from the external magnetic assembly; Three inner magnets, the three inner magnets are fixedly mounted on the three first sliding blocks respectively, the three inner magnets are all arc-shaped plates and there is always a gap between them and the outer magnetic assembly; An adjusting member is installed on the rotating shaft and is used to adjust the position of the inner magnet.

[0007] By adopting the above technical scheme, the gap distance between the inner magnet and the outer magnetic assembly is adjusted through the adjusting piece. When the gap between the inner magnet and the outer magnetic assembly increases, the magnetic lines of force between the two become sparse, the interaction force becomes smaller, and the torque transmission is reduced. When the gap between the inner magnet and the outer magnet decreases, the direct magnetic lines of force between the two become dense, the interaction force increases, and the torque transmission increases, thereby realizing the adjustment of the transmission torque and improving the adaptability of a magnetic coupling with stepless adjustable transmission torque.

[0008] Optionally, the adjusting member includes: A fixed housing, the fixed housing being coaxially and fixedly mounted on one end of the rotating shaft close to the first sliding block; An adjusting bevel gear, the adjusting bevel gear is passed through and rotatably mounted in the fixed housing, and the axis of the adjusting bevel gear is perpendicular to the axis of the fixed housing; The end bevel gear is coaxially and rotatably mounted in the fixed housing, the end bevel gear is meshingly connected with the adjusting bevel gear, a plane thread is provided on one end of the end bevel gear away from the adjusting bevel gear, and the three internal magnets are all threadedly connected with the plane thread.

[0009] By adopting the above technical solution, the rotation of the bevel gear is adjusted to drive the end bevel gear to rotate, and the rotation of the end bevel gear drives the end bevel gear to rotate at the same time, and the rotation of the end bevel gear drives the three first sliders to move synchronously in a direction away from or close to the axis, thereby realizing the adjustment of the gap distance between the inner magnet and the outer magnet, and improving the adaptability of a magnetic coupling with stepless adjustable transmission torque.

[0010] Optionally, the external magnetic component includes: An outer magnetic rotor, which is a circular cylindrical body and is coaxially sleeved on the rotating shaft; The number of the external magnets is an even number and not less than two, and the number of the external magnets not less than two is evenly and fixedly mounted on the inner wall of the external magnetic rotor, the polarities of two adjacent external magnets are opposite, and there is always a gap between the inner magnet and the external magnet.

[0011] By adopting the above technical scheme, the gap distance between the inner magnet and the outer magnet is adjusted through the adjusting member. When the gap between the inner magnet and the outer magnet increases, the magnetic lines of force between the two become sparse, the interaction force becomes smaller, and the torque transmission is reduced. When the gap between the inner magnet and the outer magnet decreases, the direct magnetic lines of force between the two become dense, the interaction force increases, and the torque transmission increases, thereby achieving the adjustment of the transmission torque and improving the adaptability of a magnetic coupling with stepless adjustable transmission torque.

[0012] Optionally, a heat dissipation component is installed on the outer magnetic rotor, and the heat dissipation component includes: A sleeve, wherein the sleeve is sleeved on the outer magnetic rotor, and a cavity is formed in the sleeve; Two heat dissipation telescopic rods, the fixed ends of the two heat dissipation telescopic rods are symmetrically and fixedly installed in the sleeve; A first return spring, wherein the first return spring is sleeved on the heat dissipation telescopic rod, one end of the first return spring is fixedly connected to the movable end of the heat dissipation telescopic rod, and the other end of the first return spring is fixedly connected to the fixed end of the heat dissipation telescopic rod; An airbag, the airbag is fixedly installed in the sleeve, the airbag is connected to the fixed end of the heat dissipation telescopic rod, and a one-way valve is installed at the connection between the airbag and the heat dissipation telescopic rod; There are no less than two nozzles, and no less than two nozzles are passed through and fixedly installed on the sleeve. No less than two nozzles are arranged in a fan shape on the sleeve, and one end of the nozzle is connected to the fixed end of the heat dissipation telescopic rod.

[0013] By adopting the above technical solution, the movable end of the heat dissipation telescopic rod reciprocates, and while the movable end of the heat dissipation telescopic rod moves, the coolant in the airbag enters the fixed end of the heat dissipation telescopic rod through the one-way valve, and finally sprays onto the outer magnetic rotor through the nozzle to dissipate heat and cool the outer magnetic rotor. This avoids the over-high temperature of a magnetic coupling with a stepless adjustable transmission torque, which leads to demagnetization of the inner and outer magnets, affecting the normal transmission of a magnetic coupling with a stepless adjustable transmission torque.

[0014] Optionally, a driving component is installed in the sleeve, the driving component is connected to the heat dissipation component, and the driving component is used to drive the heat dissipation component to work; The heat dissipation component also includes a fan blade, which is connected to the driving component and is rotatably mounted on the inner wall of the sleeve.

[0015] By adopting the above technical solution, the drive assembly works and drives the fan blades to rotate, thereby increasing the air flow speed on the surface of the outer magnetic rotor, and realizing the heat dissipation and cooling function on the surface of the outer magnetic rotor. It is avoided that the temperature of a magnetic coupling with a stepless adjustable transmission torque is too high, which leads to demagnetization of the inner and outer magnets, affecting the normal transmission of a magnetic coupling with a stepless adjustable transmission torque.

[0016] Optionally, the driving component includes: a first spur gear, the first spur gear being coaxially sleeved and rotatably mounted in the sleeve; Two second spur gears, the two second spur gears are symmetrically and rotatably mounted in the sleeve, and the second spur gears are meshed and connected with the first spur gear; A first active bevel gear, wherein the first active bevel gear is coaxial with and fixedly connected to the second spur gear; A first driven bevel gear, the first driven bevel gear is rotatably mounted in the sleeve, and the first driven bevel gear is meshedly connected with the first driving bevel gear; A cam is coaxial with and fixedly connected to the first driven bevel gear, and the cam abuts against the movable end of the heat dissipation telescopic rod.

[0017] By adopting the above technical solution, after the sleeve is sleeved on the external magnetic rotor, the relative positions of the sleeve and the external magnetic rotor are adjusted so that the movable ends of the two positioning telescopic rods are embedded in the two positioning holes, and then the external magnetic rotor rotates, and the rotation of the external magnetic rotor drives the first spur gear to rotate, the rotation of the first spur gear drives the second spur gear to rotate, the rotation of the second spur gear drives the first active bevel gear to rotate and drives the first driven bevel gear to rotate, the rotation of the first driven bevel gear drives the cam to rotate, the rotation of the cam drives the movable end of the heat dissipation telescopic rod to move, thereby realizing the driving function of the heat dissipation component.

[0018] Optionally, the driving component further includes: A second active bevel gear, the second active bevel gear is coaxial with the first active bevel gear and is fixedly connected; A second driven bevel gear is rotatably mounted in the sleeve, the second driven bevel gear is meshedly connected with the second active bevel gear, and the fan blade is coaxially and fixedly connected with the second driven bevel gear.

[0019] By adopting the above technical solution, the second active bevel gear rotates and drives the second driven bevel gear to rotate. The rotation of the second driven bevel gear further drives the fan blades to rotate, thereby realizing the driving function of the heat dissipation component.

[0020] Optionally, the driving component further includes: Two positioning telescopic rods, the two positioning telescopic rods are passed through and symmetrically mounted on the first spur gear, the fixed ends of the positioning telescopic rods are fixedly mounted on the first spur gear, and the movable ends of the positioning telescopic rods are slidably mounted on the first spur gear; A second return spring, the second return spring is coaxially sleeved on the positioning telescopic rod, one end of the second return spring is fixedly connected to the fixed end of the positioning telescopic rod, and the other end of the second return spring is fixedly connected to the movable end of the positioning telescopic rod; The outer magnetic rotor is provided with two symmetrically arranged positioning holes.

[0021] By adopting the above technical solution, it is ensured that the outer magnetic rotor can drive the first spur gear to rotate when rotating, thereby improving the mechanical linkage.

[0022] Optionally, a hexagonal hole is provided on the adjusting bevel gear.

[0023] By adopting the above technical solution, it is convenient to rotate the adjusting bevel gear, thereby improving the convenience of operation.

[0024] Optionally, three second sliders are evenly slidably mounted circumferentially on one end of the rotating shaft away from the first slider, and the three second sliders are fixedly connected to the three inner magnets respectively.

[0025] By adopting the above technical solution, the sliding stability and smoothness of the inner magnet are improved.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The gap distance between the inner magnet and the outer magnetic assembly is adjusted by the adjusting member. When the gap between the inner magnet and the outer magnetic assembly increases, the magnetic force lines between the two become sparse, the interaction force becomes smaller, and the torque transmission decreases. When the gap between the inner magnet and the outer magnet decreases, the direct magnetic force lines between the two become dense, the interaction force increases, and the torque transmission increases, thereby adjusting the transmission torque and improving the adaptability of a magnetic coupling with stepless adjustable transmission torque. 2. The movable end of the heat dissipation telescopic rod reciprocates. When the movable end of the heat dissipation telescopic rod moves, the coolant in the airbag enters the fixed end of the heat dissipation telescopic rod through the one-way valve, and finally sprays onto the outer magnetic rotor through the nozzle to dissipate heat and cool the outer magnetic rotor. This prevents the temperature of a magnetic coupling with a stepless adjustable transmission torque from being too high, which may cause demagnetization of the inner and outer magnets, affecting the normal transmission of the magnetic coupling with a stepless adjustable transmission torque; 3. After the sleeve is sleeved on the external magnetic rotor, the relative positions of the sleeve and the external magnetic rotor are adjusted so that the movable ends of the two positioning telescopic rods are embedded in the two positioning holes. Then the external magnetic rotor rotates. The external magnetic rotor drives the first spur gear to rotate while rotating. The first spur gear rotates and then drives the second spur gear to rotate. The second spur gear rotates and then drives the first active bevel gear to rotate while driving the first driven bevel gear to rotate. The first driven bevel gear rotates and then drives the cam to rotate. The rotation of the cam drives the movable end of the heat dissipation telescopic rod to move, thereby realizing the driving function of the heat dissipation component. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the installation of the outer magnetic assembly and the inner magnetic assembly of the embodiment of the present application; Figure 2 is a cross-sectional view of the installation structure of the outer magnetic assembly and the inner magnetic assembly of the embodiment of the present application; Figure 3 is a schematic diagram of the structure of the external magnetic assembly in the embodiment of the present application; Figure 4 is a schematic diagram of the structure of the first slider in the internal magnetic assembly used to illustrate the embodiment of the present application; Figure 5is a schematic diagram of the structure of the second slider in the internal magnetic assembly used to illustrate the embodiment of the present application; Figure 6 is a schematic diagram of the internal structure of a fixed housing according to an embodiment of the present application; Figure 7 It is a schematic diagram of the installation of the heat dissipation assembly of the embodiment of the present application; Figure 8 is a partial structural cross-sectional view of a sleeve according to an embodiment of the present application; Fig. 9 This is an embodiment of the present application Figure 8 Enlarged view of point A.

[0028] Description of reference numerals: 1. external magnetic assembly; 11. external magnetic rotor; 111. positioning hole; 12. external magnet; 2. Internal magnetic assembly; 21. Rotating shaft; 22. Internal magnet; 23. First slider; 24. Adjusting member; 241. Fixed housing; 242. Adjusting bevel gear; 2421. Internal hexagonal hole; 243. End bevel gear; 244. Plane thread; 245. Second slider; 31. Sleeve; 32. Heat dissipation telescopic rod; 33. First return spring; 34. Air bag; 35. Nozzle; 36. Fan blade; 41. First spur gear; 42. Second spur gear; 43. First active bevel gear; 44. First driven bevel gear; 45. Cam; 46. Second active bevel gear; 47. Second driven bevel gear; 48. Positioning telescopic rod; 49. Second return spring. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0032] The following is combined with Figure 1-9 This application is described in further detail.

[0033] The embodiment of the present application discloses a magnetic coupling with stepless adjustable transmission torque.

[0034] Reference Figure 1 , Figure 2 , Figure 3 as well as Figure 4 A magnetic coupling with stepless adjustable transmission torque includes an outer magnetic component 1 and an inner magnetic component 2. The outer magnetic component 1 is coaxially sleeved on the inner magnetic component 2, and there is always a gap between the inner magnetic component 2 and the outer magnetic component 1. The inner magnetic component 2 includes a rotating shaft 21, three first sliders 23, three inner magnets 22 and an adjusting member 24. The outer magnetic component 1 is coaxially sleeved on the rotating shaft 21, and the three first sliders 23 are circumferentially uniformly slidably mounted on the end of the rotating shaft 21 away from the outer magnetic component 1. The three inner magnets 22 are respectively fixedly mounted on the three first sliders 23. The three inner magnets 22 are all arc-shaped plates and there is always a gap between them and the outer magnetic component 1. The adjusting member 24 is mounted on the rotating shaft 21, and the adjusting member 24 is used to adjust the position of the inner magnet 22. Three second sliders 245 are circumferentially uniformly slidably mounted on the end of the rotating shaft 21 away from the first slider 23, and the three second sliders 245 are respectively fixedly connected to the three inner magnets 22.

[0035] Reference Figure 4 , Figure 5 and Figure 6 The adjusting member 24 includes a fixed housing 241, an adjusting bevel gear 242 and an end bevel gear 243. The fixed housing 241 is coaxially and fixedly mounted on one end of the rotating shaft 21 close to the first slider 23, and the adjusting bevel gear 242 is arranged through and rotatably mounted in the fixed housing 241. The axis of the adjusting bevel gear 242 is perpendicular to the axis of the fixed housing 241. The adjusting bevel gear 242 is provided with an inner hexagonal hole 2421. The end bevel gear 243 is coaxially and rotatably mounted in the fixed housing 241. The end bevel gear 243 is meshed and connected with the adjusting bevel gear 242. A plane thread 244 is provided on one end of the end bevel gear 243 away from the adjusting bevel gear 242. The three inner magnets 22 are all threadedly connected with the plane thread 244.

[0036] Reference Figure 1 , Figure 2 and Figure 3 The external magnetic assembly 1 includes an external magnetic rotor 11 and an even number of external magnets 12, not less than two. The external magnetic rotor 11 is a circular cylinder, and the external magnetic rotor 11 is coaxially sleeved on the rotating shaft 21. Not less than two external magnets 12 are evenly and fixedly mounted on the inner wall of the external magnetic rotor 11, and the polarities of two adjacent external magnets 12 are opposite, and there is always a gap between the inner magnet 22 and the external magnet 12. Two symmetrically arranged positioning holes 111 are opened on the external magnetic rotor 11.

[0037] When a magnetic coupling with a stepless adjustable transmission torque is working, the adjusting bevel gear 242 is rotated through the hexagonal hole 2421, and the adjusting bevel gear 242 rotates to drive the end bevel gear 243 to rotate. The end bevel gear 243 rotates while driving the end bevel gear 243 to rotate. The end bevel gear 243 rotates while driving the three first sliders 23 to move synchronously in a direction away from or close to the axis, thereby adjusting the gap distance between the inner magnet 22 and the outer magnet 12. When the gap between the inner magnet 22 and the outer magnet 12 increases, the magnetic lines of force between the two become sparse, the interaction force becomes smaller, and the torque transmission is reduced. When the gap between the inner magnet 22 and the outer magnet 12 decreases, the direct magnetic lines of force between the two become dense, the interaction force increases, and the torque transmission increases, thereby achieving the adjustment of the transmission torque and improving the adaptability of a magnetic coupling with a stepless adjustable transmission torque.

[0038] Reference Figure 7 , Figure 8 and Fig. 9 , a heat dissipation assembly is installed on the outer magnetic rotor 11, and the heat dissipation assembly includes a sleeve 31, two heat dissipation telescopic rods 32, a first return spring 33 and an air bag 34. The sleeve 31 is sleeved on the outer magnetic rotor 11, and a cavity is opened in the sleeve 31. The fixed ends of the two heat dissipation telescopic rods 32 are symmetrical and fixedly installed in the sleeve 31. The first return spring 33 is sleeved on the heat dissipation telescopic rod 32. One end of the first return spring 33 is fixedly connected to the movable end of the heat dissipation telescopic rod 32, and the other end of the first return spring 33 is fixedly connected to the fixed end of the heat dissipation telescopic rod 32. The air bag 34 is fixedly installed in the sleeve 31, and the air bag 34 is connected to the fixed end of the heat dissipation telescopic rod 32. A one-way valve is installed at the connection between the air bag 34 and the heat dissipation telescopic rod 32. The air bag 34 is filled with coolant. No less than two nozzles 35 are inserted and fixedly installed on the sleeve 31. No less than two nozzles 35 are arranged in a fan shape on the sleeve 31, and one end of the nozzle 35 is connected to the fixed end of the heat dissipation telescopic rod 32. A driving assembly is installed in the sleeve 31 , and the driving assembly is connected to the heat dissipation assembly. The driving assembly is used to drive the heat dissipation assembly to work. The heat dissipation assembly also includes fan blades 36 , which are connected to the driving assembly and rotatably installed on the inner wall of the sleeve 31 .

[0039] The driving component works and drives the movable end of the heat dissipation telescopic rod 32 to reciprocate. When the movable end of the heat dissipation telescopic rod 32 moves, the coolant in the airbag 34 enters the fixed end of the heat dissipation telescopic rod 32 through the one-way valve, and finally sprays onto the outer magnetic rotor 11 through the nozzle 35 to dissipate heat and cool the outer magnetic rotor 11. At the same time, the driving component works and drives the fan blades 36 to rotate, increasing the air flow speed on the surface of the outer magnetic rotor 11, and realizing the heat dissipation and cooling function on the surface of the outer magnetic rotor 11. Avoid the over-high temperature of a magnetic coupling with a stepless adjustable transmission torque, which leads to demagnetization of the inner magnet 22 and the outer magnet 12, affecting the normal transmission of a magnetic coupling with a stepless adjustable transmission torque.

[0040] Reference Figure 7 , Figure 8 and Fig. 9 The driving assembly includes a first spur gear 41, two second spur gears 42, a first active bevel gear 43, a first driven bevel gear 44, a cam 45, a second active bevel gear 46, a second driven bevel gear 47, two positioning telescopic rods 48 and a second return spring 49.

[0041] Reference Figure 7 , Figure 8 and Fig. 9 The first spur gear 41 is coaxially sleeved and rotatably installed in the sleeve 31, the two second spur gears 42 are symmetrically and rotatably installed in the sleeve 31, the second spur gear 42 is meshed with the first spur gear 41, the first active bevel gear 43 is coaxial and fixedly connected with the second spur gear 42, the first driven bevel gear 44 is rotatably installed in the sleeve 31, the first driven bevel gear 44 is meshed with the first active bevel gear 43, the cam 45 is coaxial and fixedly connected with the first driven bevel gear 44, and the cam 45 abuts against the movable end of the heat dissipation telescopic rod 32.

[0042] Reference Figure 7 , Figure 8 and Fig. 9 The second active bevel gear 46 is coaxial with the first active bevel gear 43 and fixedly connected, the second driven bevel gear 47 is rotatably installed in the sleeve 31, the second driven bevel gear 47 is meshed with the second active bevel gear 46, and the fan blade 36 is coaxial with the second driven bevel gear 47 and fixedly connected.

[0043] Reference Figure 7 , Figure 8 and Fig. 9The two positioning telescopic rods 48 are passed through and symmetrically installed on the first straight gear 41, the fixed end of the positioning telescopic rod 48 is fixedly installed on the first straight gear 41, and the movable end of the positioning telescopic rod 48 is slidably installed on the first straight gear 41. The second return spring 49 is coaxially sleeved on the positioning telescopic rod 48, one end of the second return spring 49 is fixedly connected to the fixed end of the positioning telescopic rod 48, and the other end of the second return spring 49 is fixedly connected to the movable end of the positioning telescopic rod 48.

[0044] After the sleeve 31 is sleeved on the external magnetic rotor 11, the relative positions of the sleeve 31 and the external magnetic rotor 11 are adjusted so that the movable ends of the two positioning telescopic rods 48 are embedded in the two positioning holes 111. Then the external magnetic rotor 11 rotates. The rotation of the external magnetic rotor 11 drives the first spur gear 41 to rotate. The rotation of the first spur gear 41 drives the second spur gear 42 to rotate. The rotation of the second spur gear 42 drives the first active bevel gear 43 and the second active bevel gear 46 to rotate.

[0045] The first active bevel gear 43 rotates and drives the first driven bevel gear 44 to rotate. The first driven bevel gear 44 rotates and drives the cam 45 to rotate. The cam 45 rotates and drives the movable end of the heat dissipation telescopic rod 32 to move, thereby realizing the driving function of the heat dissipation component.

[0046] The second active bevel gear 46 rotates and drives the second driven bevel gear 47 to rotate. The second driven bevel gear 47 rotates and drives the fan blades 36 to rotate, thereby realizing the driving function of the heat dissipation component.

[0047] The implementation principle of a magnetic coupling with a stepless adjustable transmission torque in an embodiment of the present application is as follows: the gap distance between the inner magnet 22 and the outer magnet 12 is adjusted by an adjusting member 24. When the gap between the inner magnet 22 and the outer magnet 12 increases, the magnetic lines of force between the two become sparse, the interaction force becomes smaller, and the torque transmission is reduced. When the gap between the inner magnet 22 and the outer magnet 12 decreases, the direct magnetic lines of force between the two become dense, the interaction force increases, and the torque transmission increases, thereby achieving the adjustment of the transmission torque and improving the adaptability of a magnetic coupling with a stepless adjustable transmission torque.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A magnetic coupling with stepless adjustable transmission torque, characterized in that: include: External magnetic assembly (1); An inner magnetic component (2), the outer magnetic component (1) being coaxially sleeved on the inner magnetic component (2), and a gap always existing between the inner magnetic component (2) and the outer magnetic component (1); Wherein, the internal magnetic component (2) comprises: A rotating shaft (21), the external magnetic component (1) being coaxially sleeved on the rotating shaft (21); Three first sliding blocks (23), the three first sliding blocks (23) being uniformly slidably mounted in the circumferential direction on one end of the rotating shaft (21) away from the external magnetic assembly (1); Three inner magnets (22), the three inner magnets (22) being fixedly mounted on the three first slide blocks (23) respectively, the three inner magnets (22) being arc-shaped plates and having a gap between them and the outer magnetic assembly (1); An adjusting member (24), wherein the adjusting member (24) is mounted on the rotating shaft (21), and the adjusting member (24) is used to adjust the position of the inner magnet (22).

2. The magnetic coupling with stepless adjustable transmission torque according to claim 1, characterized in that: The adjusting member (24) comprises: A fixed housing (241), the fixed housing (241) being coaxially and fixedly mounted on one end of the rotating shaft (21) close to the first sliding block (23); An adjusting bevel gear (242), the adjusting bevel gear (242) being passed through and rotatably mounted in the fixed housing (241), the axis of the adjusting bevel gear (242) being perpendicular to the axis of the fixed housing (241); An end bevel gear (243), the end bevel gear (243) is coaxially and rotatably mounted in the fixed housing (241), the end bevel gear (243) is meshingly connected with the adjusting bevel gear (242), a plane thread (244) is provided on one end of the end bevel gear (243) away from the adjusting bevel gear (242), and the three internal magnets (22) are all threadedly connected to the plane thread (244).

3. The magnetic coupling with stepless adjustable transmission torque according to claim 2, characterized in that: The external magnetic component (1) comprises: An external magnetic rotor (11), the external magnetic rotor (11) being a circular cylindrical body, and the external magnetic rotor (11) being coaxially sleeved on the rotating shaft (21); The number of external magnets (12) is an even number and not less than two, the number of external magnets (12) not less than two being evenly and fixedly mounted on the inner wall of the external magnetic rotor (11), the polarities of two adjacent external magnets (12) being opposite, and there always being a gap between the internal magnet (22) and the external magnet (12).

4. The magnetic coupling with stepless adjustable transmission torque according to claim 3, characterized in that: A heat dissipation component is mounted on the outer magnetic rotor (11), and the heat dissipation component comprises: A sleeve (31), the sleeve (31) being sleeved on the outer magnetic rotor (11), and a cavity being formed in the sleeve (31); Two heat dissipation telescopic rods (32), wherein the fixed ends of the two heat dissipation telescopic rods (32) are symmetrically and fixedly mounted in the sleeve (31); a first return spring (33), the first return spring (33) being sleeved on the heat dissipation telescopic rod (32), one end of the first return spring (33) being fixedly connected to the movable end of the heat dissipation telescopic rod (32), and the other end of the first return spring (33) being fixedly connected to the fixed end of the heat dissipation telescopic rod (32); an airbag (34), the airbag (34) being fixedly mounted in the sleeve (31), the airbag (34) being in communication with a fixed end of the heat dissipation telescopic rod (32), and a one-way valve being mounted at the connection between the airbag (34) and the heat dissipation telescopic rod (32); There are no fewer than two nozzles (35), and no fewer than two of the nozzles (35) are passed through and fixedly mounted on the sleeve (31). No fewer than two of the nozzles (35) are arranged in a fan-shaped manner on the sleeve (31), and one end of the nozzle (35) is connected to the fixed end of the heat dissipation telescopic rod (32).

5. The magnetic coupling with stepless adjustable transmission torque according to claim 4, characterized in that: A driving component is installed in the sleeve (31), the driving component is connected to the heat dissipation component, and the driving component is used to drive the heat dissipation component to work; The heat dissipation component further comprises a fan blade (36), the fan blade (36) being connected to the driving component, and the fan blade (36) being rotatably mounted on the inner wall of the sleeve (31).

6. The magnetic coupling with stepless adjustable transmission torque according to claim 5, characterized in that: The drive assembly comprises: a first spur gear (41), the first spur gear (41) being coaxially sleeved and rotatably mounted in the sleeve (31); Two second spur gears (42), the two second spur gears (42) being symmetrically and rotatably mounted in the sleeve (31), the second spur gears (42) being meshingly connected with the first spur gear (41); A first active bevel gear (43), the first active bevel gear (43) being coaxial with and fixedly connected to the second spur gear (42); a first driven bevel gear (44), the first driven bevel gear (44) being rotatably mounted in the sleeve (31), the first driven bevel gear (44) being meshingly connected with the first driving bevel gear (43); A cam (45), the cam (45) being coaxial with and fixedly connected to the first driven bevel gear (44), and the cam (45) being in abutment with the movable end of the heat dissipation telescopic rod (32).

7. The magnetic coupling with stepless adjustable transmission torque according to claim 6, characterized in that: The drive assembly also includes: a second active bevel gear (46), the second active bevel gear (46) being coaxial with and fixedly connected to the first active bevel gear (43); A second driven bevel gear (47), the second driven bevel gear (47) being rotatably mounted in the sleeve (31), the second driven bevel gear (47) being meshingly connected with the second driving bevel gear (46), and the fan blade (36) being coaxially and fixedly connected with the second driven bevel gear (47).

8. The magnetic coupling with stepless adjustable transmission torque according to claim 7, characterized in that: The drive assembly also includes: Two positioning telescopic rods (48), the two positioning telescopic rods (48) being passed through and symmetrically mounted on the first spur gear (41), the fixed ends of the positioning telescopic rods (48) being fixedly mounted on the first spur gear (41), and the movable ends of the positioning telescopic rods (48) being slidably mounted on the first spur gear (41); a second return spring (49), the second return spring (49) being coaxially sleeved on the positioning telescopic rod (48), one end of the second return spring (49) being fixedly connected to the fixed end of the positioning telescopic rod (48), and the other end of the second return spring (49) being fixedly connected to the movable end of the positioning telescopic rod (48); The outer magnetic rotor (11) is provided with two symmetrically arranged positioning holes (111).

9. The magnetic coupling with stepless adjustable transmission torque according to claim 2, characterized in that: The adjusting bevel gear (242) is provided with a hexagonal hole (2421).

10. The magnetic coupling with stepless adjustable transmission torque according to claim 1, characterized in that: Three second sliders (245) are uniformly slidably mounted circumferentially on one end of the rotating shaft (21) away from the first slider (23), and the three second sliders (245) are respectively fixedly connected to the three inner magnets (22).

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