CN211321192U - Double-connecting-rod speed regulating mechanism for magnetic coupling - Google Patents

Abstract

The utility model relates to the technical field of magnetic coupling controllers. It is a double-link speed regulating mechanism for a magnetic coupling. It uses a magnetic field as a medium and adopts a non-contact mechanical structure for transmission. The double-link speed regulating mechanism synchronously adjusts the copper conductor and the permanent magnet. The air gap between the magnets eliminates the need for auxiliary synchronization mechanisms such as gears and racks, and can accurately control the torque transmitted from the motor to the load, thereby adjusting the load speed. It has the characteristics of stepless speed regulation, good energy saving effect, simple structure, few parts, convenient processing and more stable transmission. The speed regulating mechanism has better synchronization when regulating speed. The input and output side speed regulating mechanisms move independently without interfering with each other. There is no friction resistance between gears and racks and other components. The force is uniform, the axial force is small, and can be accurately controlled. The air gap between the copper disk and the permanent magnet disk greatly improves the speed regulating effect and reliability, and improves the application performance of the speed regulating magnetic coupling.

Description

A double-link speed regulating mechanism for a magnetic coupling

technical field

The utility model relates to the technical field of magnetic coupling controllers, in particular to a double-link speed regulating mechanism for magnetic couplings.

Background technique

Magnetic coupling is a kind of transmission device that transmits torque through non-contact magnetic field. It can realize stepless speed regulation and achieve significant energy saving effect; reduce shock and vibration, coordinate the load distribution of multi-machine drives; realize the smooth and gradual flexibility of the motor Start/stop; reduce the overall operating cost of the system; protect the motor and prolong the service life of the system; greatly improve the stability and reliability, and have obvious advantages when the load speed is high and the power is large; it does not cause harmonic interference to the power grid, and is not affected by voltage reduction; It can eliminate the vibration transmission between the motor and the load, and prolong the service life of the system; the maintenance and maintenance costs are low. The speed-regulating magnetic coupling changes the output torque by adjusting the size of the air gap. Its main function is to improve the starting performance of the motor, protect the motor, protect the motor from overload, reduce shock and vibration, and coordinate the load of the multi-machine drive. Reasonable distribution, and at the same time, the stepless speed regulation of the output speed is realized under the condition that the motor speed is basically unchanged. Therefore, it has an extremely wide range of applications in belt conveyors, fans, pumps and other systems that need to be adjusted.

At present, the speed regulating mechanism of the speed regulating magnetic coupling adjusts the size of the air gap mainly through the actuator pushing a single connecting rod to drive the two permanent magnet rotors to move axially, and through the connecting body and gear teeth arranged between the two permanent magnet rotors. The bar-type mechanism realizes synchronous and opposite movement. Its components are complex, the number is large, the processing accuracy is high, the assembly is difficult, the components are easy to wear, the transmission synchronization error is large, the axial movement resistance is large, the required transmission torque is large, and it is easy to The stagnation has a large impact on the bearing, reduces the accuracy of the speed control system, and affects the application performance and operation stability of the speed control magnetic coupling.

Utility model content

In order to solve the above problems, the magnetic coupling for speed regulation of the double-linkage mechanism proposed by the present utility model is a new type of speed-regulating transmission system. The air gap between the copper conductor and the permanent magnet is synchronously adjusted, without the need for auxiliary synchronization mechanisms such as rack and pinion, and the torque transmitted from the motor to the load can be precisely controlled, thereby realizing the adjustment of the load speed. The specific technical advantages are as follows: (1) Stepless speed regulation is realized, and the energy saving effect is good. (2) The structure is simple, the parts are few, the processing is convenient, and the transmission is more stable. (3) The synchronism of the speed control mechanism is better when the speed is adjusted. The input and output side speed control mechanisms move independently without interfering with each other. There is no frictional resistance between parts such as racks and pinions. The force is uniform and the axial force is small. The air gap between the copper disc and the permanent magnet disc can be precisely controlled, the speed regulation effect and reliability are greatly improved, and the application performance of the speed regulation magnetic coupling is improved.

For achieving the above object, the technical scheme adopted by the present utility model is:

In the first technical solution, a double-link speed regulating mechanism for a magnetic coupling, comprising:

load shaft;

The speed regulating inner sleeve is sleeved on the outside of the load shaft, and the speed regulating inner sleeve has a hollow arc groove I and a hollow arc groove II, wherein the arc groove I is close to the input end, and the arc groove II is close to the output end, the first end of the arc groove I and the arc groove II are axially flush and the second end is axially flush, and the arc groove I and the arc groove II form radial symmetry;

The permanent magnet disk on the input side is fixed on the magnetic coupling end of the load shaft and can rotate with the load shaft;

The input side speed regulating assembly includes a bearing I and an input side connection assembly, the bearing I includes a bearing inner sleeve I and a bearing outer sleeve I, the bearing inner sleeve I is fixed on the load shaft, and the input side connection assembly is connected to the bearing outer sleeve I and through the arc slot II;

The output side speed regulating assembly includes a bearing II and an output side connecting assembly. The bearing II includes a bearing inner sleeve II and a bearing outer sleeve II. The bearing inner sleeve II can be axially slidably connected to the load shaft and can rotate with the load shaft. The output side connecting assembly is connected to the bearing outer sleeve II and passes through the arc-shaped groove I, and the bearing inner sleeve II is connected to the output side permanent magnet disk;

The output side permanent magnet disk is fixedly connected to the bearing inner sleeve II and can slide axially with the bearing inner sleeve II, and the output side permanent magnet disk can rotate with the load shaft and the bearing inner sleeve II;

The input side connecting assembly and the output side connecting assembly can move synchronously in the circular direction in the arc groove I and the arc groove II respectively. The input side permanent magnet disk and the output side permanent magnet disk are synchronously and equidistantly approached or separated.

In the first technical solution, preferably, the arc-shaped groove I and the arc-shaped groove II form a radially symmetrical "eight" shape.

In the first technical solution, preferably, the load shaft is an output spline shaft, and the output side permanent magnet disk and the bearing inner sleeve II are connected to the spline of the output spline shaft.

In the first technical solution, preferably, the double-link speed regulating mechanism for the magnetic coupling further includes an actuator, which is used to drive the input-side connecting component and the output-side connecting component to be synchronously installed in the speed regulating inner sleeve move within the arc slot I and arc slot II.

In the first technical solution, preferably, the actuator is connected universally with the input-side connecting component and the output-side connecting component through a joint bearing.

In the first technical solution, preferably, the input-side connecting assembly and the output-side connecting assembly are tightly fitted with the arc-shaped groove I and the arc-shaped groove II, respectively, so that the input-side connecting assembly and the arc-shaped groove I are matched There is no rattling, and the output side connecting assembly is matched with the arc groove II without rattling.

In the first technical solution, preferably, the bearing inner sleeve II and the load shaft are positioned through a shaft shoulder.

In the first technical solution, preferably, the magnetic coupling uses a double-link speed regulating mechanism to cooperate with a power input assembly, and the power input assembly includes an input shaft and a conductor structure, and the conductor structure has an internal cavity The inner cavity is also columnar and coaxial with the conductor structure, the two end faces of the conductor structure facing the inner cavity are conductor copper discs, and the input shaft is connected to the center of one end face of the conductor structure, The load shaft passes through the center of the other end face of the conductor structure, the input side permanent magnet disk and the output side permanent magnet disk are placed in the inner cavity, and the input side permanent magnet disk and the output side permanent magnet are connected to the conductor structure The conductor copper discs at the two inner ends are arranged at equal intervals and form air gaps at equal intervals.

The beneficial effects of using the utility model are:

The magnetic coupling for the speed regulation of the double link mechanism solves the technical problems existing in the field of mechanical transmission speed regulation. The specific effects are as follows:

(1) Reasonable speed regulation structure can precisely control the air gap between the copper disc and the permanent magnet disc to realize the stepless speed regulation function.

(2) The problem of poor adaptability and easy damage of the coupling in the harsh environment of the traditional mechanical transmission field is solved.

(3) The structure of the speed regulating mechanism is simple, and the requirements for machining accuracy and matching accuracy are not high. The double-linkage is driven synchronously, which solves the problems of poor axial movement synchronization and large axial resistance.

(4) A new type of magnetic coupling speed regulating mechanism is proposed.

Description of drawings

FIG. 1 is a schematic diagram of the application of the dual-link speed regulating mechanism for the magnetic coupling of the present invention in the maximum state of the air gap in the magnetic coupling.

FIG. 2 is a schematic structural diagram of the actuator in the dual-link speed regulating mechanism for the magnetic coupling of the present invention.

FIG. 3 is a schematic structural diagram of the input side speed regulating mechanism in the dual-link speed regulating mechanism for the magnetic coupling of the present invention.

4 is a schematic structural diagram of the output side speed regulating mechanism in the dual-link speed regulating mechanism for the magnetic coupling of the present invention.

5 is a schematic structural diagram of the input side speed regulating assembly in the dual-link speed regulating mechanism for the magnetic coupling of the present invention.

6 is a schematic structural diagram of the output side speed regulating assembly in the dual-link speed regulating mechanism for the magnetic coupling of the present invention.

FIG. 7 is a schematic diagram of the structure of the inner speed regulating sleeve in the dual-link speed regulating mechanism for the magnetic coupling of the present invention.

FIG. 8 is a schematic diagram of the application of the dual-link speed regulating mechanism for the magnetic coupling of the present invention in the minimum state of the air gap in the magnetic coupling.

Reference numerals include:

1-input bearing seat, 2-input shaft, 3-input side copper disc, 4-input side permanent magnet disc, 5-output side permanent magnet disc, 6-output side copper disc, 7-output spline shaft, 8- Output side speed control assembly, 9-speed control inner sleeve, 10-input side speed control assembly, 11-output bearing seat, 12-base, 13-actuator, 14-connecting rod, 15-joint bearing, 16-connecting pin , 17- joystick, 18- speed regulating jacket, 19- self-lubricating bushing, 20- cam pin, 21- bushing, 22- bearing jacket I, 23- bearing pressure plate, 24- bearing inner jacket I, 25- Gland I, 26- Output end cover, 27- Gland II, 28- Bearing inner sleeve II, 29- Gland III, 30- Bearing outer sleeve II, 31- Arc groove I, 32- Arc groove II.

Detailed ways

In order to make the purpose, technical solution and advantages of the technical solution more clear, the technical solution will be further described in detail below with reference to the specific embodiments. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the technical solution.

In order to facilitate the understanding of the present utility model, the present utility model will be more fully described below with reference to the related drawings. The accompanying drawings show typical embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

Terms including ordinal numbers such as "first" and "second" used in this specification can be used to describe various constituent elements, but these constituent elements are not limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of rights of the present invention, the first constituent element can be named as the second constituent element, and similarly, the second constituent element can also be named as the first constituent element.

In order to better understand the above technical solutions, the above technical solutions will be described in detail below with reference to the accompanying drawings and specific embodiments of the description. Rather than limiting the technical solutions of the present application, the embodiments of the present invention and the technical features in the embodiments can be combined with each other without conflict.

As shown in Figures 1-8, the double-link 14 speed regulating mechanism for the magnetic coupling proposed in this embodiment includes:

load shaft;

The speed control inner sleeve 9 is sleeved on the outside of the load shaft, and the speed control inner sleeve 9 has a hollow arc groove I 31 and a hollow arc groove II 32, wherein the arc groove I 31 is close to the input end, and the arc groove I 31 is close to the input end. The arc groove II 32 is close to the output end, the first end of the arc groove I 31 and the arc groove II 32 are axially flush and the second end is axially flush, and the arc groove I 31 and the arc groove II 32 form radial symmetry ;

The permanent magnet disk 4 on the input side is fixed on the magnetic coupling end of the load shaft and can rotate with the load shaft;

The input side speed regulating assembly 10 includes a bearing I and an input side connecting assembly. The bearing I includes a bearing inner sleeve I 24 and a bearing outer sleeve I 22, the bearing inner sleeve I 24 is fixed on the load shaft, and the input side connecting assembly is connected to the bearing outer sleeve. I 22 and through the arc slot II 32;

The output side speed regulating assembly 8 includes the bearing II and the output side connecting assembly. The bearing II includes the bearing inner sleeve II 28 and the bearing outer sleeve II 30. The bearing inner sleeve II 28 can be axially slidably connected to the load shaft and can be connected with the load shaft. Rotating, the output side connecting assembly is connected to the bearing outer sleeve II 30 and passes through the arc-shaped groove I 31, and the bearing inner sleeve II 28 is connected to the output side permanent magnet disc 5;

The output side permanent magnet disk 5 is fixedly connected to the bearing inner sleeve II 28 and can slide axially with the bearing inner sleeve II 28, and the output side permanent magnet disk 5 can rotate with the load shaft and the bearing inner sleeve II 28;

The input-side connecting assembly and the output-side connecting assembly can move synchronously and circumferentially in the arc-shaped groove I 31 and the arc-shaped groove II 32, respectively, through the speed control inner sleeve 9 and the input side speed control assembly 10 and the output side speed control assembly 8. In cooperation, the permanent magnet disk 4 on the input side and the permanent magnet disk 5 on the output side are driven to be synchronously and equidistantly approached or separated.

The arc groove I 31 and the arc groove II 32 form a radially symmetrical "eight" shape.

The load shaft is the output spline shaft 7 , and the output side permanent magnet disc 5 and the bearing inner sleeve II 28 are splined on the output spline shaft 7 .

The double-link 14 speed regulating mechanism for the magnetic coupling also includes an actuator 13, which is used to drive the input side connecting assembly and the output side connecting assembly to synchronize in the arc-shaped groove I 31 and the arc-shaped groove of the speed control inner sleeve 9 Move inside II 32.

The actuator 13 is universally connected with the input-side connecting assembly and the output-side connecting assembly through a joint bearing 15 .

The input side connecting assembly and the output side connecting assembly are closely matched with the arc groove I 31 and the arc groove II 32 respectively, so that the input side connecting assembly and the arc groove I 31 are matched without shaking, and the output side connecting assembly and the arc groove II 32 fit without shaking.

The bearing inner sleeve II 28 is positioned with the load shaft by means of a shoulder.

The magnetic coupling uses a double-link 14 speed regulating mechanism to cooperate with the power input assembly. The power input assembly includes an input shaft 2 and a conductor structure. The conductor structure is a cylindrical body with an internal cavity, and the internal cavity is also cylindrical and coaxial with the conductor structure. , the two ends of the conductor structure facing the inner cavity are conductor copper disks, the input shaft 2 is connected to the center of one end face of the conductor structure, the load shaft passes through the center of the other end face of the conductor structure, and the input side permanent magnet disk 4 and The output side permanent magnet disk 5 is placed in the inner cavity, and the input side permanent magnet disk 4 and the output side permanent magnet and the conductor copper disks at both inner ends of the conductor structure are arranged at equal intervals and form air gaps with equal intervals.

Example 2

A method of speed regulation with double-link 14 for magnetic coupling, using the double-link 14 speed regulating mechanism for magnetic coupling proposed in Example 1, when the magnetic coupling needs speed regulation, the external actuator 13 drives the input side connecting component and the output side connecting component move synchronously in the circular direction in the arc groove I 31 and the arc groove II 32 respectively, through the cooperation of the speed control inner sleeve 9 with the input side speed control component 10 and the output side speed control component 8, and then drive the input The side permanent magnet disk 4 and the output side permanent magnet disk 5 move in opposite directions synchronously, so as to adjust the size of the air gap and finally change the output speed and torque.

Example 3

Combined with the double-link 14 speed regulating mechanism for the magnetic coupling in Embodiment 1 and the double-link 14 speed regulating method for the magnetic coupling in Embodiment 2, the specific methods of the speed regulating mechanism and the speed regulating method are as follows.

As shown in Figure 1 and Figure 2, the magnetic coupling of the double-link 14 mechanism speed regulation is mainly composed of an input shaft 2, a bearing seat 1, an input shaft 2, an input side copper disk 3, an input side permanent magnet disk 4, and an output side permanent magnet. Disk 5, output side copper disk 6, output spline shaft 7, output side speed control assembly 8, speed control inner sleeve 9, input side speed control assembly 10, output bearing seat 11, base 12, and actuator 13.

The input shaft 2 is connected with the input side copper plate 3 and the output side copper plate 6, and is installed in the bearing seat 1 of the input shaft 2 through corresponding bearings, and can rotate together, which together constitute an input assembly to provide input torque from the motor end. The input side permanent magnet disk 4, the output side permanent magnet disk 5, the output side speed control assembly 8, and the input side speed control assembly 10 are connected to the output spline shaft 7, and pass through the speed control inner sleeve 9, corresponding bearings, bolts and The spline sleeve matched with the spline on the output spline shaft 7 is connected to the output bearing seat 11 and can rotate together to form an output assembly to output torque to the load. The input assembly, the output assembly and the actuator 13 are installed on the base 12 together to form a magnetic coupling for the speed regulation of the double-link 14 mechanism.

The input side permanent magnet disc 4 is connected with one end of the output spline shaft 7 through a key, and the input side speed control assembly 10 is connected with one end of the speed control inner sleeve 9, and is fixed to the output shaft through the shoulder on the output spline shaft 7 and the round nut. The other end, together to form the input side speed control mechanism, as shown in Figure 3. The output side speed control assembly is connected with the other end of the speed control inner sleeve 9, the output side permanent magnet disc 5 and the output side speed control assembly 8 are connected together by bearings and bolts, and are connected with the output spline shaft 7 through splines to form the output together. Side speed regulating mechanism, as shown in Figure 4.

As shown in FIG. 5 , one end of the connecting rod 14 is connected to the handle 17 through a joint bearing 15 and a connecting pin 16, and the other end is connected to the actuator 13 through another joint bearing 15, and the whole is connected to the speed regulating jacket 18 through bolts. The speed regulating jacket 18 and the self-lubricating bushing 19 are connected with the bearing jacket 122 through the cam pin shaft 20 by using the arc groove on the speed regulating inner jacket 9, and the shaft bushing 21 is installed between the speed regulating inner jacket 9 and the cam pin shaft 20. , the bearing outer sleeve I 22, the bearing I, the bearing pressure plate 23, the bearing inner sleeve I 24, the gland I 25 are fixed on the output spline shaft 7 through the shoulder on the output spline shaft 7 and the round nut, which together form the input side adjustment Speed assembly 10.

As shown in FIG. 6 , one end of the other connecting rod 14 is connected to the other control handle 17 through another joint bearing 15 and another connecting pin 16 , and the other end is connected to the actuator 13 through another joint bearing 15 , and the whole is connected by bolts. It is connected to another speed regulating outer casing 18, the speed regulating outer casing 18 and the self-lubricating bushing 19 are connected to the bearing outer casing II 30 through the cam pin shaft 20 using another arc-shaped groove on the speed regulating inner casing 9, and the speed regulating inner casing 9II is connected to the bearing outer casing II 30. A shaft sleeve 21 is installed between the cam pin shaft 20, the bearing outer sleeve II 30, the bearing, the speed regulating inner sleeve 9II, the output end cover 26, the gland II 27, and the gland III29 through the splines on the output spline shaft 7 and The output spline shafts 77 are connected to form the output side speed regulating assembly 8 together.

When the magnetic coupling needs speed regulation, the actuator 13 drives the input-side speed-regulation mechanism and the output-side speed-regulation mechanism through the connecting rod 14 to synchronize the two arc-shaped grooves I 31 and the arc-shaped grooves I 31 and the arc-shaped grooves I 31 in opposite directions on the speed-regulation inner sleeve 9 . The groove II 32 (as shown in Figure 7) rotates and moves axially along the splines on the output spline shaft 7, thereby driving the input side permanent magnet disk 4 and the output side permanent magnet disk 5 to move in the opposite direction synchronously, and then It plays the role of adjusting the air gap (ie the gap between the input side copper disk 3 and the input side permanent magnet disk 4, the gap between the output side permanent magnet disk 5 and the output side copper disk 6), and changing the output speed and torque.

If the input side permanent magnet disk 4 and the output side permanent magnet disk 5 move to the positions away from the input side copper disk 3 and the output side copper disk 6, respectively, until the position shown in FIG. 1, it is a magnetic coupling structure adjusted to the maximum air gap, At this time, the output torque is the smallest; if the input side permanent magnet disk 4 and the output side permanent magnet disk 5 move to the position close to the input side copper disk 3 and the output side copper disk 6 respectively, until the position shown in Figure 8, it is adjusted to the minimum air gap The structure of the magnetic coupling, the output torque is the largest at this time.

The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the technical content, many changes can be made in the specific implementation and application scope, as long as these changes do not depart from the present invention. All ideas belong to the protection scope of this patent.

Claims (8)

1. a dual-link speed regulating mechanism for a magnetic coupling, characterized in that: comprising: load shaft; The speed regulating inner sleeve is sleeved on the outside of the load shaft, and the speed regulating inner sleeve has a hollow arc groove I and a hollow arc groove II, wherein the arc groove I is close to the input end, and the arc groove II is close to the output end, the first end of the arc groove I and the arc groove II are axially flush and the second end is axially flush, and the arc groove I and the arc groove II form radial symmetry; The permanent magnet disk on the input side is fixed on the magnetic coupling end of the load shaft and can rotate with the load shaft; The input side speed regulating assembly includes a bearing I and an input side connection assembly, the bearing I includes a bearing inner sleeve I and a bearing outer sleeve I, the bearing inner sleeve I is fixed on the load shaft, and the input side connection assembly is connected to the bearing outer sleeve I and through the arc slot II; The output side speed regulating assembly includes a bearing II and an output side connecting assembly. The bearing II includes a bearing inner sleeve II and a bearing outer sleeve II. The bearing inner sleeve II can be axially slidably connected to the load shaft and can rotate with the load shaft. The output side connecting assembly is connected to the bearing outer sleeve II and passes through the arc-shaped groove I, and the bearing inner sleeve II is connected to the output side permanent magnet disk; The output side permanent magnet disk is fixedly connected to the bearing inner sleeve II and can slide axially with the bearing inner sleeve II, and the output side permanent magnet disk can rotate with the load shaft and the bearing inner sleeve II; The input-side connecting assembly and the output-side connecting assembly can move synchronously and circumferentially in the arc-shaped groove I and arc-shaped groove II, respectively. The input side permanent magnet disk and the output side permanent magnet disk are synchronously and equidistantly approached or separated. 2 . The double-link speed regulating mechanism for a magnetic coupling according to claim 1 , wherein the arc-shaped groove I and the arc-shaped groove II form a radially symmetrical "eight" shape. 3 . 3. The double-link speed regulating mechanism for a magnetic coupling according to claim 1, wherein the load shaft is an output spline shaft, and the output side permanent magnet disc and the bearing inner sleeve II are connected to the output spline on the shaft spline. 4 . The double-link speed regulating mechanism for a magnetic coupling according to claim 1 , wherein the double-linking speed regulating mechanism for the magnetic coupling further comprises an actuator, which is used to drive the input side connecting assembly. 5 . It moves in the arc groove I and arc groove II of the speed regulating inner sleeve synchronously with the output side connecting component. 5 . The double-link speed regulating mechanism for a magnetic coupling according to claim 4 , wherein the actuator is connected to the input side connecting assembly and the output side connecting assembly through a joint bearing to realize universal connection. 6 . 6. The double-link speed regulating mechanism for a magnetic coupling according to claim 1, wherein the input side connecting assembly and the output side connecting assembly are tightly matched with the arc-shaped groove I and the arc-shaped groove II, respectively, so that all the The input-side connecting assembly is matched with the arc-shaped groove I without shaking, and the output-side connecting assembly is matched with the arc-shaped groove II without shaking. 7 . The double-link speed regulating mechanism for a magnetic coupling according to claim 1 , wherein the bearing inner sleeve II and the load shaft are positioned through a shaft shoulder. 8 . 8 . The double-link speed regulating mechanism for a magnetic coupling according to claim 1 , wherein the double-link speed regulating mechanism for the magnetic coupling is matched with a power input assembly, and the power input assembly comprises an input shaft and a conductor. 9 . structure, the conductor structure is a columnar body with an inner cavity, the inner cavity is also columnar and coaxial with the conductor structure, the two end faces of the conductor structure facing the inner cavity are conductor copper discs, and the input shaft Connected at the center of one end face of the conductor structure, the load shaft passes through the center of the other end face of the conductor structure, the input side permanent magnet disk and the output side permanent magnet disk are placed in the inner cavity, and the input side permanent magnet disk The permanent magnet discs and the permanent magnets on the output side and the conductor copper discs at the two inner ends of the conductor structure are arranged at equal intervals and form air gaps with equal intervals.

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