Large-range torque adjustment magnetic coupler

Abstract

The invention provides a large-range torque adjustment magnetic coupler, and relates to the technical field of magnetic couplers, the large-range torque adjustment magnetic coupler comprises an outer magnetic steel upper cover and an outer magnetic steel cylinder, and an output shaft is fixedly installed at the axis of the side, away from the outer magnetic steel cylinder, of the outer magnetic steel upper cover; the outer magnetic steel cylinder body is driven by a distance adjusting mechanism to perform telescopic translation sliding relative to the outer magnetic steel upper cover so as to adjust the distance between the outer magnetic steel cylinder body and the outer magnetic steel upper cover, the inner magnetic steel is arranged in the magnetic coupling chamber, and the mounting distance between the plurality of middle cylinder type inner magnetic steel and the inner magnetic steel mounting rack is adjustable. The air gap distance between the inner magnetic steel and the outer magnetic steel can be adjusted, the angle of the top disc type magnetic steel and the angle of the bottom disc type magnetic steel can be adjusted, accordingly, the corresponding area of the magnetic steel is changed, richer and more accurate torque strength adjustment can be achieved through superposition of the multiple adjusting mechanisms, and the torque strength is adjusted more accurately. The magnetic coupling is especially suitable for high-strength magnetic couplers requiring large-range torque adjustment.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic couplers, in particular to a wide range torque regulating magnetic coupler. Background Art

[0002] A magnetic torque-adjustable permanent magnet synchronous coupling with a publication number of "CN115549431A" in the prior art includes an active rotor part, a driven rotor part, a support mechanism, a magnetic force adjustment mechanism, and an adjustment actuator. The active rotor part is connected to the drive system, and the driven rotor part is connected to the load system. The active rotor part and the driven rotor part transmit torque through the coupling force between the permanent magnets. The support mechanism includes bearing seats and bearings on both sides to provide support force for the active rotor and the driven rotor. The magnetic force adjustment mechanism controls the linear motion of the slider on the ball screw to drive the adjustment actuator. The adjustment actuator is mainly composed of three magnets to control the coupling area between the active rotor and the driven rotor, thereby realizing the control of the torque transmitted by the permanent magnet synchronous coupling. The device realizes the transmission and adjustment of torque through magnetic force, and there are no disadvantages such as adhesion and wear of the friction plate of the friction coupling, and the axial offset distance of the permanent magnet is basically linearly related to the rated transmission torque. The present invention has the advantages of high reliability, stable adjustment, strong applicability, etc., and can be widely used in industrial production.

[0003] However, the above-mentioned device still has obvious defects during use: although the above-mentioned device can adjust the torque, the adjustment form of the above-mentioned magnetic coupling is relatively simple. Like the prior art, the above-mentioned magnetic coupling usually adopts a unidirectional air gap spacing adjustment to adjust the coupling strength. This adjustment method is relatively common, but because the strength of the magnetic coupling will decrease sharply with the increase of the air gap spacing, the adjustment method in the prior art is relatively limited, and it is difficult to perform more precise torque adjustment. Summary of the invention

[0004] The object of the present invention is to provide a wide range torque regulating magnetic coupling to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A wide range torque regulating magnetic coupling, comprising:

[0007] An outer magnetic steel upper cover, wherein the top and inner side wall of the outer magnetic steel upper cover are respectively provided with a plurality of top disk magnetic steels and upper cylindrical magnetic steels in an annular array;

[0008] An outer magnetic steel cylinder, wherein a plurality of lower cylindrical magnetic steels are arranged in an annular array on the inner side wall of the outer magnetic steel cylinder, and a plurality of bottom disc-type magnetic steels are installed on the side of the outer magnetic steel cylinder away from the outer magnetic steel upper cover;

[0009] An output shaft is fixedly mounted on the axis of the outer magnetic steel upper cover away from the outer magnetic steel cylinder. The outer magnetic steel cylinder is driven by the distance adjustment mechanism to telescope and translate relative to the outer magnetic steel upper cover to adjust the distance between the two. A hollow magnetic coupling chamber is formed in the outer magnetic steel upper cover and the outer magnetic steel cylinder. The outer magnetic steel upper cover and the outer magnetic steel cylinder synchronously perform fixed-axis rotation around the axis of the output shaft.

[0010] The inner magnetic steel is arranged in the magnetic coupling chamber, and the inner magnetic steel includes an inner magnetic steel mounting frame, a plurality of middle cylindrical inner magnetic steels, a plurality of top inner magnetic steels fixedly arranged on the upper and lower sides, and a bottom inner magnetic steel. The mounting spacing between the plurality of middle cylindrical inner magnetic steels and the inner magnetic steel mounting frame is adjustable, so as to adjust the air gap spacing between the middle cylindrical inner magnetic steel and the upper cylindrical magnetic steel and the lower cylindrical magnetic steel. An input shaft is also fixedly inserted at the axis center of the inner magnetic steel mounting frame, and the input shaft extends outward from the side of the inner magnetic steel away from the output shaft; wherein,

[0011] A plurality of the top disk magnets and the bottom disk magnets are respectively and correspondingly slidably arranged in the slide grooves provided in the outer magnetic steel upper cover and the outer magnetic steel cylinder. A plurality of the top disk magnets and the bottom disk magnets are respectively connected to the sliding mechanisms which are arranged in a one-to-one correspondence. The sliding mechanisms drive the top disk magnets and the bottom disk magnets to synchronously rotate and slide within a preset angle range. The top disk magnets and the bottom disk magnets slide in the same direction and keep the projections on the upper and lower opposite sides overlapping.

[0012] Preferably, the internal magnetic steel mounting frame consists of a frame body and a sliding slot frame arranged in a circular array on the upper and lower sides. Several of the middle cylindrical internal magnetic steels are matched with the sliding slot frame through a fixedly connected sliding rod. Corresponding fixing holes are provided on the sliding slot frame and the sliding rod, and the sliding rod is connected and fixed to the sliding slot frame by inserting a pin shaft.

[0013] Preferably, the distance adjusting mechanism includes a lifting platform, a lifting screw and an auxiliary sliding rod are respectively provided on both sides of the lifting platform, the lifting screws on both sides are fixedly connected to the driving shaft of the distance adjusting motor, the lifting screw and the auxiliary sliding rod are installed with the same lifting plate, the lifting plates on both sides are fixedly connected to the same bearing mounting ring, an external magnetic steel yoke iron disk is also fixedly installed on the external magnetic steel cylinder, a bearing is provided between the external magnetic steel yoke iron disk and the bearing mounting ring, the lifting platform and the external magnetic steel upper cover are fixedly arranged, and the rotation of the distance adjusting motor drives the external magnetic steel cylinder to perform telescopic and translational sliding relative to the external magnetic steel upper cover.

[0014] Preferably, a slide rod telescopic block is installed in the outer annular array of the outer magnetic steel upper cover, and a lifting slide rod is telescopically arranged inside the slide rod telescopic block, and the lifting slide rod is fixedly connected to the outer magnetic steel yoke iron plate.

[0015] Preferably, the inner magnetic steel mounting frame is also provided with an inner magnetic steel sliding positioning groove disk rotatably mounted on one side of the inner magnetic steel near the top through a rotating bearing, an arc-shaped positioning groove penetrating from top to bottom is provided in a circular array on the inner magnetic steel sliding positioning groove disk, a positioning block is fixedly mounted on the sliding rod, and the positioning block on the side of the inner magnetic steel sliding positioning groove disk passes through the arc-shaped positioning groove from bottom to top to complete the positioning.

[0016] Preferably, end connection blocks are fixedly installed at both ends of the middle cylindrical inner magnetic steel, and the top inner magnetic steel and the bottom inner magnetic steel are fixedly connected to the end connection blocks and the positioning blocks through the opened assembly grooves, thereby completing the fixed installation of the top inner magnetic steel and the bottom inner magnetic steel.

[0017] Preferably, the sliding mechanism includes an upper arc-shaped telescopic cylinder and a lower arc-shaped telescopic cylinder, which are respectively fixedly mounted on the external magnetic steel upper cover and the external magnetic steel cylinder. The upper arc-shaped telescopic cylinder and the lower arc-shaped telescopic cylinder are both connected to the pumping mechanism through a pipeline, and the pumping operation is synchronously performed through the pumping mechanism, so that the sliding rods of the upper arc-shaped telescopic cylinder and the lower arc-shaped telescopic cylinder can synchronously perform telescopic movements.

[0018] Preferably, the pumping mechanism comprises a sliding rod telescopic block and a lifting sliding rod, the lifting sliding rod is provided with a thin rod portion in the sliding rod telescopic block, the thin rod portion is also inserted in a fixed isolation baffle, the isolation baffle divides the space formed by the thin rod portion and the sliding rod telescopic block into an upper pumping compartment and a lower pumping compartment, the upper pumping compartment and the lower pumping compartment are respectively connected with the upper arc telescopic cylinder and the lower arc telescopic cylinder through pipelines, during the lifting and sliding process of the lifting sliding rod, the upper pumping compartment and the lower pumping compartment perform pumping and extraction operations alternately, the pumping port of the upper arc telescopic cylinder is arranged at the tail end of the cylinder body, and the pumping port of the lower arc telescopic cylinder is arranged at the front end of the cylinder body, thereby ensuring that the upper arc telescopic cylinder and the lower arc telescopic cylinder perform telescopic movements synchronously.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention adopts a multi-dimensional adjustment method, which can not only adjust the air gap spacing between the inner and outer magnets, but also adjust the air gap spacing between the upper and lower end magnets, and can also adjust the angles of the top disk magnet and the bottom disk magnet, thereby changing the corresponding area of ​​the magnet. The superposition of the above-mentioned multiple adjustment mechanisms can achieve richer and more precise torque strength adjustment, which is particularly suitable for high-strength magnetic couplers that require a wide range of torque adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0022] Figure 2It is a schematic cross-sectional view of the overall structure of the present invention;

[0023] Figure 3 It is a schematic cross-sectional view of the local structure of the outer magnetic steel upper cover and the outer magnetic steel cylinder of the present invention;

[0024] Figure 4 It is a three-dimensional schematic diagram of the overall structure of the inner magnetic steel of the present invention;

[0025] Figure 5 It is a three-dimensional schematic diagram of the overall structure of the inner magnetic steel mounting frame of the present invention;

[0026] Figure 6 It is a three-dimensional schematic diagram of the middle cylinder-type inner magnetic steel connection structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the top view of the structure of the outer magnetic steel cylinder of the present invention;

[0028] Figure 8 This is a bottom view of the structure of the outer magnetic steel cylinder of the present invention;

[0029] Fig. 9 It is a schematic diagram of the telescopic state of the upper arc telescopic cylinder and the lower arc telescopic cylinder of the present invention.

[0030] In the figure: 1 outer magnetic steel cover, 2 top disk magnetic steel, 3 upper cylinder magnetic steel, 4 outer magnetic steel cylinder, 5 lower cylinder magnetic steel, 6 bottom disk magnetic steel, 7 output shaft, 8 magnetic coupling chamber, 9 inner magnetic steel, 10 inner magnetic steel mounting frame, 11 middle cylinder inner magnetic steel, 12 top inner magnetic steel, 13 bottom inner magnetic steel, 14 input shaft, 15 slide groove, 16 frame, 17 slide groove frame, 18 slide rod, 19 fixing hole, 20 lifting platform, 2 1 lifting screw rod, 22 auxiliary slide rod, 23 pitch-adjusting motor, 24 lifting plate, 25 bearing mounting ring, 26 outer magnetic steel yoke iron plate, 27 bearing, 28 slide rod telescopic block, 29 lifting slide rod, 30 inner magnetic steel sliding positioning groove plate, 31 arc-shaped positioning groove, 32 positioning block, 33 end connecting block, 34 upper arc-shaped telescopic cylinder, 35 lower arc-shaped telescopic cylinder, 36 thin rod, 37 isolation baffle, 38 upper pumping compartment, 39 lower pumping compartment. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-9 , the present invention provides a technical solution:

[0033] Embodiment 1:

[0034] A wide range torque regulating magnetic coupling, comprising:

[0035] An outer magnetic steel upper cover 1, wherein a plurality of top disk magnetic steels 2 and upper cylindrical magnetic steels 3 are respectively arranged in a circular array on the top and inner side wall of the outer magnetic steel upper cover 1;

[0036] An outer magnetic steel cylinder 4, a plurality of lower cylindrical magnetic steels 5 are arranged in a circular array on the inner side wall of the outer magnetic steel cylinder 4, and a plurality of bottom disc magnetic steels 6 are installed on the side of the outer magnetic steel cylinder 4 away from the outer magnetic steel upper cover 1;

[0037] An output shaft 7 is fixedly mounted at the axis center of the outer magnetic steel upper cover 1 away from the outer magnetic steel cylinder 4. The outer magnetic steel cylinder 4 is driven by the distance adjustment mechanism to perform telescopic translational sliding relative to the outer magnetic steel upper cover 1 to adjust the distance between the two. A hollow magnetic coupling chamber 8 is formed in the outer magnetic steel upper cover 1 and the outer magnetic steel cylinder 4. The outer magnetic steel upper cover 1 and the outer magnetic steel cylinder 4 synchronously perform fixed-axis rotation around the axis center of the output shaft 7.

[0038] The inner magnetic steel 9 is arranged in the magnetic coupling chamber 8. The inner magnetic steel 9 includes an inner magnetic steel mounting frame 10, a plurality of middle cylindrical inner magnetic steels 11, a plurality of top inner magnetic steels 12 fixedly arranged on the upper and lower sides, and a bottom inner magnetic steel 13. The mounting spacing between the plurality of middle cylindrical inner magnetic steels 11 and the inner magnetic steel mounting frame 10 is adjustable, so as to adjust the air gap spacing between the middle cylindrical inner magnetic steel 11 and the upper cylindrical magnetic steel 3 and the lower cylindrical magnetic steel 5. An input shaft 14 is also fixedly inserted at the axis center of the inner magnetic steel mounting frame 10. The input shaft 14 extends outward from the side of the inner magnetic steel 9 away from the output shaft 7; wherein,

[0039] A plurality of top disk magnets 2 and bottom disk magnets 6 are respectively and correspondingly slidably arranged in the slide grooves 15 opened in the outer magnetic steel upper cover 1 and the outer magnetic steel cylinder 4. The plurality of top disk magnets 2 and bottom disk magnets 6 are respectively connected to the sliding mechanisms arranged one by one. The sliding mechanisms drive the top disk magnets 2 and the bottom disk magnets 6 to synchronously rotate and slide within a preset angle range. The top disk magnets 2 and the bottom disk magnets 6 slide in the same direction and keep the projections of the upper and lower opposite sides overlapping.

[0040] In this embodiment, the outer magnetic steel is composed of an outer magnetic steel upper cover 1 and an outer magnetic steel cylinder 4, and the two can synchronously perform fixed-axis rotational motion, thereby transmitting the torque input by the inner magnetic steel 9, wherein the outer magnetic steel upper cover 1 is fixedly arranged, and the outer magnetic steel cylinder 4 can change the distance between the outer magnetic steel upper cover 1 by telescoping, thereby adjusting the distance between the bottom inner magnetic steel 13 and the bottom disk magnetic steel 6 in the inner magnetic steel 9, thereby adjusting the coupling strength between the two, wherein magnetic steel is arranged at both ends and around the inner magnetic steel 9, and magnetic steel is also arranged at the corresponding positions of the outer magnetic steel upper cover 1 and the outer magnetic steel cylinder 4, the coupling strength can be further improved, and this arrangement is particularly suitable for large In the torque environment, the spacing of the middle cylindrical inner magnetic steel 11 can be adjusted at the same time, thereby changing the air gap spacing between the middle cylindrical inner magnetic steel 11 and the upper cylindrical magnetic steel 3 and the lower cylindrical magnetic steel 5. Furthermore, the top disk magnetic steel 2 and the bottom disk magnetic steel 6 can also rotate and slide within a preset angle range. This setting can change the coupling area of ​​the top disk magnetic steel 2, the bottom disk magnetic steel 6 and the corresponding top inner magnetic steel 12 and the bottom inner magnetic steel 13, and then change the coupling strength. Through the above setting, richer and more accurate torque strength adjustment can be achieved, which is particularly suitable for high-strength magnetic couplers that require a wide range of torque adjustment.

[0041] Embodiment 2:

[0042] The internal magnetic steel mounting frame 10 is composed of a frame body 16 and a sliding slot frame 17 arranged in a circular array on the upper and lower sides. A number of middle cylindrical internal magnetic steels 11 cooperate with the sliding slot frame 17 through a fixedly connected sliding rod 18. Corresponding fixing holes 19 are provided on the sliding slot frame 17 and the sliding rod 18. The sliding rod 18 is connected and fixed to the sliding slot frame 17 by inserting a pin shaft.

[0043] In this embodiment, a plurality of installation mechanisms of the middle cylindrical inner magnetic steels 11 are further disclosed, and the telescopic length of the middle cylindrical inner magnetic steels 11 is adjusted by sliding the sliding rod 18 in the sliding slot frame 17 .

[0044] Embodiment three:

[0045] The distance adjusting mechanism includes a lifting platform 20, and a lifting screw 21 and an auxiliary slide bar 22 are respectively arranged on both sides of the lifting platform 20. The lifting screws 21 on both sides are fixedly connected to the driving shaft of the distance adjusting motor 23. The same lifting plate 24 is installed on the lifting screw 21 and the auxiliary slide bar 22. The lifting plates 24 on both sides are fixedly connected to the same bearing mounting ring 25. An external magnetic steel yoke iron disk 26 is also fixedly installed on the external magnetic steel cylinder 4. A bearing 27 is arranged between the external magnetic steel yoke iron disk 26 and the bearing mounting ring 25. The lifting platform 20 and the external magnetic steel upper cover 1 are fixedly arranged. The rotation of the distance adjusting motor 23 drives the external magnetic steel cylinder 4 to perform telescopic translational sliding relative to the external magnetic steel upper cover 1, and the external magnetic steel yoke iron disk 26 is fixedly connected to the external magnetic steel cylinder 4.

[0046] In this embodiment, a mechanism for driving the external magnetic steel cylinder 4 to perform telescopic movement is further disclosed, wherein the pitch-adjusting motor 23 rotates to drive the lifting plate 24 to lift and lower, and the lifting and lowering of the lifting plate 24 drives the bearing mounting ring 25 to lift and lower, and the lifting and lowering of the bearing mounting ring 25 drives the external magnetic steel yoke iron plate 26 and the external magnetic steel cylinder 4 fixedly connected thereto to lift and lower, thereby completing the telescopic translational sliding of the external magnetic steel cylinder 4 relative to the external magnetic steel upper cover 1.

[0047] Embodiment 4:

[0048] The outer annular array of the outer magnetic steel upper cover 1 is installed with a slide rod telescopic block 28, and a lifting slide rod 29 is telescopically arranged inside the slide rod telescopic block 28, and the lifting slide rod 29 is fixedly connected to the outer magnetic steel yoke iron plate 26.

[0049] The inner magnetic steel mounting frame 10 is also provided with an inner magnetic steel sliding positioning groove plate 30 which is rotatably mounted on the inner magnetic steel 12 at the top through a rotating bearing. An arc-shaped positioning groove 31 which runs through the inner magnetic steel sliding positioning groove plate 30 is provided in a circular array. A positioning block 32 is fixedly mounted on the sliding rod 18. The positioning block 32 on the side of the inner magnetic steel sliding positioning groove plate 30 passes through the arc-shaped positioning groove 31 from bottom to top to complete the positioning.

[0050] End connection blocks 33 are also fixedly installed at both ends of the middle cylindrical inner magnetic steel 11, and the top inner magnetic steel 12 and the bottom inner magnetic steel 13 are fixedly connected to the end connection blocks 33 and the positioning blocks 33 through the opened assembly grooves, thereby completing the fixed installation of the top inner magnetic steel 12 and the bottom inner magnetic steel 13.

[0051] In this embodiment, a related auxiliary connection mechanism is further disclosed, and the installation of the corresponding structure can be completed through the arrangement of the above-mentioned mechanism. The specific connection method is shown in the drawings of the specification.

[0052] Embodiment five:

[0053] The sliding mechanism includes an upper arc-shaped telescopic cylinder 34 and a lower arc-shaped telescopic cylinder 35, which are respectively fixedly mounted on the outer magnetic steel upper cover 1 and the outer magnetic steel cylinder 4. The upper arc-shaped telescopic cylinder 34 and the lower arc-shaped telescopic cylinder 35 are both connected to the pumping mechanism through pipelines, and the pumping operation is synchronously performed through the pumping mechanism, so that the sliding rods of the upper arc-shaped telescopic cylinder 34 and the lower arc-shaped telescopic cylinder 35 can synchronously perform telescopic movements.

[0054] The pumping mechanism comprises a slide bar telescopic block 28 and a lifting slide bar 29. The lifting slide bar 29 is located in the slide bar telescopic block 28 and is provided with a thin rod portion 36. The thin rod portion 36 is also inserted into a fixed isolation baffle 37. The isolation baffle 37 divides the space formed by the thin rod portion 36 and the slide bar telescopic block 28 into an upper pumping compartment 38 and a lower pumping compartment 39. The upper pumping compartment 38 and the lower pumping compartment 39 are respectively connected to the upper arc telescopic cylinder 34 and the lower arc telescopic cylinder 35 through pipelines. During the lifting and sliding process of the lifting slide bar 29, the upper pumping compartment 38 and the lower pumping compartment 39 perform pumping and extraction operations alternately. The pumping port of the upper arc telescopic cylinder 34 is arranged at the tail end of the cylinder body, and the pumping port of the lower arc telescopic cylinder 35 is arranged at the front end of the cylinder body, thereby ensuring that the upper arc telescopic cylinder 34 and the lower arc telescopic cylinder 35 perform telescopic movements synchronously.

[0055] In this embodiment, the specific structure of the sliding mechanism for driving the top disk magnetic steel 2 and the bottom disk magnetic steel 6 to rotate within a preset angle range is further disclosed, wherein the ends of the telescopic rods in the upper arc telescopic cylinder 34 and the lower arc telescopic cylinder 35 are fixedly connected to the corresponding top disk magnetic steel 2 and the bottom disk magnetic steel 6, and the sliding of the top disk magnetic steel 2 and the bottom disk magnetic steel 6 is achieved through their telescopic movement, wherein the telescopic movement of the upper arc telescopic cylinder 34 and the lower arc telescopic cylinder 35 is synchronized with the telescopic movement of the slide bar telescopic block 28 and the lifting slide bar 29, and further, the number of the combination of the slide bar telescopic block 28 and the lifting slide bar 29 is the same as the number of the combination of the upper arc telescopic cylinder 34 and the lower arc telescopic cylinder 35, thereby achieving a group of slide bar telescopic blocks 28 and the lifting slide bar 29 controlling a corresponding group of upper arc telescopic cylinder 34 and lower arc telescopic cylinder 35, see the attached manual Fig. 9 The pump inlet of the upper arc telescopic cylinder 34 is arranged at the tail end of the cylinder body, and the pump inlet of the lower arc telescopic cylinder 35 is arranged at the front end of the cylinder body. The significance of such arrangement is that during the lifting and sliding process of the lifting slide rod 29, the telescopic arms of the upper arc telescopic cylinder 34 and the lower arc telescopic cylinder 35 can synchronously perform telescopic movements in the same direction, so that the top disk magnetic steel 2 and the bottom disk magnetic steel 6 can maintain the overlap of the projections on the upper and lower opposite sides. The purpose of such arrangement is to ensure the synchronization of the movement of the top disk magnetic steel 2 and the bottom disk magnetic steel 6, thereby providing the prerequisite for precise control of torque.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wide range torque regulating magnetic coupler, characterized in that: include: An outer magnetic steel upper cover, wherein the top and inner side wall of the outer magnetic steel upper cover are respectively provided with a plurality of top disk magnetic steels and upper cylindrical magnetic steels in an annular array; An outer magnetic steel cylinder, wherein a plurality of lower cylindrical magnetic steels are arranged in an annular array on the inner side wall of the outer magnetic steel cylinder, and a plurality of bottom disc-type magnetic steels are installed on the side of the outer magnetic steel cylinder away from the outer magnetic steel upper cover; An output shaft is fixedly mounted on the axis of the outer magnetic steel upper cover away from the outer magnetic steel cylinder. The outer magnetic steel cylinder is driven by the distance adjustment mechanism to telescope and translate relative to the outer magnetic steel upper cover to adjust the distance between the two. A hollow magnetic coupling chamber is formed in the outer magnetic steel upper cover and the outer magnetic steel cylinder. The outer magnetic steel upper cover and the outer magnetic steel cylinder synchronously perform fixed-axis rotation around the axis of the output shaft. The inner magnetic steel is arranged in the magnetic coupling chamber, and the inner magnetic steel includes an inner magnetic steel mounting frame, a plurality of middle cylindrical inner magnetic steels, a plurality of top inner magnetic steels fixedly arranged on the upper and lower sides, and a bottom inner magnetic steel. The mounting spacing between the plurality of middle cylindrical inner magnetic steels and the inner magnetic steel mounting frame is adjustable, so as to adjust the air gap spacing between the middle cylindrical inner magnetic steel and the upper cylindrical magnetic steel and the lower cylindrical magnetic steel. An input shaft is also fixedly inserted at the axis center of the inner magnetic steel mounting frame, and the input shaft extends outward from the side of the inner magnetic steel away from the output shaft; wherein, A plurality of the top disk magnets and the bottom disk magnets are respectively and correspondingly slidably arranged in the slide grooves provided in the outer magnetic steel upper cover and the outer magnetic steel cylinder. A plurality of the top disk magnets and the bottom disk magnets are respectively connected to the sliding mechanisms which are arranged in a one-to-one correspondence. The sliding mechanisms drive the top disk magnets and the bottom disk magnets to synchronously rotate and slide within a preset angle range. The top disk magnets and the bottom disk magnets slide in the same direction and keep the projections on the upper and lower opposite sides overlapping.

2. A wide range torque adjustment magnetic coupler according to claim 1, characterized in that: The internal magnetic steel mounting frame consists of a frame body and a sliding slot frame arranged in a circular array on the upper and lower sides. Several of the middle cylindrical internal magnetic steels are matched with the sliding slot frame through a fixedly connected sliding rod. Corresponding fixing holes are provided on the sliding slot frame and the sliding rod. The sliding rod is connected and fixed to the sliding slot frame by inserting a pin shaft.

3. A wide range torque regulating magnetic coupling according to claim 1 or 2, characterized in that: The distance adjusting mechanism includes a lifting platform, and a lifting screw and an auxiliary sliding rod are respectively arranged on both sides of the lifting platform, the lifting screws on both sides are fixedly connected to the driving shaft of the distance adjusting motor, the lifting screw and the auxiliary sliding rod are installed with the same lifting plate, and the lifting plates on both sides are fixedly connected to the same bearing mounting ring, and an external magnetic steel yoke iron disk is also fixedly installed on the external magnetic steel cylinder, and a bearing is arranged between the external magnetic steel yoke iron disk and the bearing mounting ring, the lifting platform and the external magnetic steel upper cover are fixedly arranged, and the rotation of the distance adjusting motor drives the external magnetic steel cylinder to perform telescopic and translational sliding relative to the external magnetic steel upper cover.

4. A wide range torque regulating magnetic coupling according to claim 3, characterized in that: The outer annular array of the outer magnetic steel upper cover is installed with a slide bar telescopic block, and the slide bar telescopic block is telescopically provided with a lifting slide bar, and the lifting slide bar is fixedly connected to the outer magnetic steel yoke iron disk.

5. A wide range torque regulating magnetic coupling according to claim 4, characterized in that: The inner magnetic steel mounting frame is also provided with an inner magnetic steel sliding positioning groove disk rotatably mounted on one side of the inner magnetic steel near the top through a rotating bearing, and an arc-shaped positioning groove penetrating from top to bottom is provided in a circular array on the inner magnetic steel sliding positioning groove disk, and a positioning block is fixedly mounted on the sliding rod, and the positioning block near the side of the inner magnetic steel sliding positioning groove disk passes through the arc-shaped positioning groove from bottom to top to complete the positioning.

6. A wide range torque adjustment magnetic coupler according to claim 5, characterized in that: The two ends of the middle cylindrical inner magnetic steel are also fixedly installed with end connecting blocks, and the top inner magnetic steel and the bottom inner magnetic steel are fixedly connected with the end connecting blocks and the positioning blocks through the opened assembly grooves, thereby completing the fixed installation of the top inner magnetic steel and the bottom inner magnetic steel.

7. A wide range torque adjustment magnetic coupler according to claim 6, characterized in that: The sliding mechanism includes an upper arc-shaped telescopic cylinder and a lower arc-shaped telescopic cylinder, which are respectively fixedly mounted on an outer magnetic steel upper cover and an outer magnetic steel cylinder. The upper arc-shaped telescopic cylinder and the lower arc-shaped telescopic cylinder are both connected to a pumping mechanism through a pipeline, and the pumping mechanism performs pumping operations synchronously, thereby causing the sliding rods of the upper arc-shaped telescopic cylinder and the lower arc-shaped telescopic cylinder to perform telescopic movements synchronously.

8. A wide range torque regulating magnetic coupling according to claim 7, characterized in that: The pumping mechanism comprises a sliding rod telescopic block and a lifting sliding rod, the lifting sliding rod is provided with a thin rod portion in the sliding rod telescopic block, the thin rod portion is also inserted in a fixed isolation baffle, the isolation baffle divides the space formed by the thin rod portion and the sliding rod telescopic block into an upper pumping compartment and a lower pumping compartment, the upper pumping compartment and the lower pumping compartment are respectively connected with the upper arc telescopic cylinder and the lower arc telescopic cylinder through pipelines, during the lifting and sliding process of the lifting sliding rod, the upper pumping compartment and the lower pumping compartment perform pumping and extraction operations alternately, the pumping port of the upper arc telescopic cylinder is arranged at the tail end of the cylinder body, and the pumping port of the lower arc telescopic cylinder is arranged at the front end of the cylinder body, thereby ensuring that the upper arc telescopic cylinder and the lower arc telescopic cylinder perform telescopic movements synchronously.

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