Variable speed power transmission clutch system with multiple output structure

Abstract

The present invention relates to a variable speed power transmission clutch system in which a plurality of load shafts are driven corresponding to one power shaft by eddy currents generated by magnetic force and a rotating magnetic field.To this end, the present invention provides a variable speed power transmission clutch system having a multiple output structure, characterized in that it includes a plurality of load shafts B arranged concentrically, a plurality of second rotating units 20 each having a cylindrical body 21a formed at an end of the load shaft B and a magnet 22 formed around the outer diameter of the cylindrical body 21a, a first rotating unit 10 provided to face the outer diameter surfaces of the plurality of second rotating units 20 and having a magnetic force reinforcing plate 12 that magnetically reacts with the magnet 22 on the surface facing the second rotating unit 20, and a power shaft A connected to the rotation center of the first rotating unit 10 to provide a rotational force.

Description

Technical Field

[0006] , ,

[0007] ,

[0001] The present invention relates to a variable-speed power transmission clutch system having a multiple-output structure, and more particularly, to a variable-speed power transmission clutch system having a multiple-output structure capable of transmitting power in a non-contact state using the structure of a magnet pair magnetic force strengthening plate.

Background Art

[0002] The content described in this part only provides background information for one embodiment of the present invention and does not constitute the prior art.

[0003] Generally, there are various forms of power transmission devices. Among them, typical ones include power transmission using gears as a means of transmitting physical force by mechanical contact, transmission using pulleys and belts, etc., and a power transmission device composed of such a pair is called a coupler or coupling, etc.

[0004] These couplings are for transmitting driving force, and are used to connect two different shafts such as a power shaft connected to a motor or engine, etc., to transmit the driving force, and a load side or a driven shaft connected to a rotating object such as a pump, etc., so that the two shafts can rotate simultaneously.

[0005] As such a coupling fits and rotates by mechanical connection, there may occur noise, dust, vibration, reduction in energy efficiency, reduction in durability, mechanical burnout, etc., due to friction.

[0006] Also, when a high-load rotating object is located on the load shaft or the driven shaft during initial operation, a high load is equally applied to the power shaft, so that a motor or engine, etc., may shorten its life, or during operations such as sudden stop or sudden rotation direction change according to abnormal situations, mechanical shock is transmitted to the power shaft without buffering and may be damaged frequently.

[0007] Therefore, magnetic couplings, which use the magnetic force of magnets, are used to prevent the generation of noise and vibration from mechanical couplings, and to prevent overloading of the electric motor on the power shaft when, for example, the load shaft or driven shaft stops rotating due to a foreign object getting caught in the pump.

[0008] As a result, various forms of coupling have been proposed, but a representative example is the Korean Published Patent No. 10-2005-0017885 (Non-contact power transmission structure using magnetic force, hereinafter referred to as "prior art," published February 23, 2015), which relates to a structure for transmitting power while connecting a separated driving shaft and a driven shaft. Specifically, as a pair of magnetic bodies is formed, consisting of a first magnet formed in the center and having either an N pole or an S pole polarity, and a second magnet formed outside the first magnet and separated into multiple N poles and S poles, the invention provides a non-contact power transmission structure using magnetic force that can transmit power from the driving shaft to the driven shaft in a non-contact state using magnetic force.

[0009] However, the aforementioned prior art uses the attractive and repulsive forces between magnets placed on the power shaft disk and magnets placed on the load shaft disk, which results in periodic slip phenomena making it difficult to transmit power consistently. Overcoming these periodic slip phenomena would require an integrated structure, which is a disadvantage.

[0010] Furthermore, in conventional magnetic couplings, when attractive and repulsive forces occur, magnetic heat and resistive heat are generated due to eddy currents. This high heat is the main cause of magnetic force reduction, thus lowering energy efficiency. In the case of conventional couplings, this problem was solved by installing and operating valves for flow control, but this process is the main cause of overload, leading to mechanical burnout and reducing energy efficiency. In other words, conventional magnetic couplings cannot efficiently transmit power from the motor to the driven shaft, resulting in somewhat low power transmission efficiency, and the motor's low power transmission efficiency makes precise rotational control of the driven shaft difficult. [Prior art documents] [Patent Documents]

[0011] [Patent Document 1] Korean Published Patent Publication No. 10-2005-0017885 [Overview of the project] [Problems that the invention aims to solve]

[0012] The present invention aims to provide a variable-speed power transmission clutch system having a multi-output structure that minimizes heat generation due to slip or eddy current generation by using a magnetic force formed between a rotating unit including a magnetic member that is connected to and can operate on one side of the power shaft or load shaft, and the corresponding rotating unit of the magnetic member located on the load shaft or power side, in order to solve the aforementioned problems.

[0013] Another objective of the present invention is to provide a variable-speed power transmission clutch system having a multi-output structure that allows the load amount of the load shaft to which the rotating object is coupled to be controlled, thereby preventing damage to the power source, such as a motor or engine, on the power shaft.

[0014] However, the technical challenges that this embodiment aims to address are not limited to those described above, and other technical challenges may exist. [Means for solving the problem]

[0015] According to one aspect of the present invention for achieving the above objective, a variable speed power transmission clutch system is provided that enables multiple load shafts to be driven in correspondence with one power shaft by eddy currents generated by magnetic force and a rotating magnetic field, comprising: a plurality of load shafts B arranged concentrically; a plurality of second rotating units 20 having a cylindrical body portion 21a formed at the end of the load shaft B and a magnet 22 formed around the outer diameter of the cylindrical body portion 21a; a first rotating unit 10 provided so as to face the outer diameter surfaces of the plurality of second rotating units 20 and having a magnetic force reinforcing plate 12 formed on the surface opposite to the second rotating units 20 that reacts magnetically with the magnet 22; and a power shaft A coupled to the rotation center of the first rotating unit 10 to provide rotational force; thereby providing a variable speed power transmission clutch system having a multi-output structure.

[0016] The arrangement is characterized in that the axial direction of the power shaft A is parallel to the axial direction of the load shaft B.

[0017] The power shaft A is positioned so that its axis center penetrates the inner centers of the concentric circles of the multiple load shafts B, and the first rotating unit 10 provided at the end of the power shaft A is formed by a cylindrical body portion 11a and positioned at the center of the concentric circles of the multiple second rotating units 20, and a magnetic force strengthening plate 12 is formed on the outer diameter surface of the cylindrical body portion 11a so as to face the magnet 22 formed on the outer diameter surface of the second rotating unit 20.

[0018] The power shaft A is positioned so that its axis center penetrates the inner centers of the concentric circles of the multiple load shafts B, and the first rotating unit 10 provided at the end of the power shaft A is provided so as to enclose the outside of the concentric circles of the multiple second rotating units 20 by forming a drum-shaped body portion 11b, and a magnetic force strengthening plate 12 is formed on the inner surface of the drum-shaped body portion 11b so as to face the magnets 22 formed on the outer diameter surface of the second rotating units 20.

[0019] The power shaft A is characterized by being positioned such that its axial direction is perpendicular to the axial direction of the load shaft B.

[0020] A plurality of load shafts B are radially arranged with respect to the axis center of the power shaft A, and the first rotating unit 10 provided at the end of the power shaft A forms a disc-shaped main body portion 11c, and a magnetic force strengthening plate 12 is formed on the disc-shaped main body portion 11c so as to face the magnet 22 formed on the outer diameter surface of the second rotating unit 20.

[0021] The load amount applied to the coupling can be controlled by separating or approaching the positions of the first rotating unit 10 and the second rotating unit 20.

[0022] The second rotating unit 20 includes a second main body portion 21, a magnet 22 arranged and coupled around the opposing surface of the second main body portion 21 and the first rotating unit 10, a magnetic force forming plate 23 that contacts one side surface of the magnet 22 and discharges the magnetic force generated from the magnet 22 to the outside, and a magnetic force forming fastening member 24 that fastens and binds the magnet 22 to the second main body portion 21 and discharges the magnetic force to the outside.

[0023] A plurality of the magnets 22 are characterized in that the N poles and S poles are alternately arranged.

[0024] The first rotating unit 10 includes a first main body portion 11 and a magnetic force strengthening plate 12 coupled to the outer periphery of the first main body portion 11.

[0025] Between the first main body portion 11 and the magnetic force strengthening plate 12, a corrosion prevention plate 13 for preventing corrosion from occurring in the first main body portion 11 and the magnetic force strengthening plate 12 due to eddy currents is further provided.

[0026] A motor 30 is connected to the power shaft A to input power, and a pump 40 is connected to the load shaft B to output power.

[0027] Only the gravitational force between the magnet 22 and the magnetic force strengthening plate 12 is generated, enabling driving regardless of polarity changes. As the magnet 22 rotates, a polarity change occurs, that is, eddy currents are generated by the rotating magnetic field. When the magnetic force strengthening plate 12 rotates due to the rotating magnetic field, it is possible to avoid physical shock and mechanical damage during sudden stops during operation or reverse rotation during forward rotation. It provides a cushioning phenomenon due to the non-contact and separated space between the two rotating units, enabling smooth reverse rotation during operation without physical shock and mechanical damage to the power shaft and load shaft.

[0028] In addition to the magnet 22 provided on the outer periphery of the second main body 21 of the second rotating unit 20, a deep magnet 25 is further radially arranged around the rotating shaft (load shaft).

[0029] A heat generating fan 26 formed to penetrate axially is further radially arranged around the rotating shaft (load shaft) at the center of the second main body 21 of the second rotating unit 20.

[0030] In addition to the magnetic force strengthening plate 12 provided on the outer periphery of the first main body 11 of the first rotating unit 10, an air hole 15 made of a copper plate material is further radially arranged around the rotating shaft (power shaft).

[0031] A heat generating fan 16 formed to penetrate axially is further radially arranged around the rotating shaft (power shaft) at the center of the first main body 11 of the first rotating unit 10.

Advantages of the Invention

[0032] [[ID=*]] The present invention as described above is free from mechanical burnout, noise, vibration, and dust by transmitting power in a non-contact and load-free state through the magnetic force formed between the rotating unit including the magnet arranged on the load shaft and the rotating unit of the magnetic force strengthening plate arranged on the power shaft. Compared with the conventional magnetic coupling, it can provide a stable output without a periodic slip phenomenon. [[ID=*]] [[ID=*]]

[0033] [[ID=*]] ]Furthermore, the present invention enables forward and reverse rotation through a magnetic coupling structure of magnets against magnetic reinforcement plates, and allows control of rotational speed and output by freely adjusting the spacing, thereby maximizing energy efficiency.

[0034] Furthermore, the present invention provides a variable-speed power transmission clutch system that enables multiple load shafts to be driven in conjunction with a single power shaft, thereby offering convenience of use and expanding the range of applications. [Brief explanation of the drawing]

[0035] [Figure 1] This is a conceptual diagram showing a variable speed power transmission clutch system having a multi-output structure according to a first embodiment of the present invention. [Figure 2] This is a conceptual diagram showing a variable speed power transmission clutch system having a multi-output structure according to a second embodiment of the present invention. [Figure 3] This is a conceptual diagram showing a variable speed power transmission clutch system having a single output structure according to a third embodiment of the present invention. [Figure 4] This is a conceptual diagram showing a variable speed power transmission clutch system having a multi-output structure according to a fourth embodiment of the present invention. [Figure 5] This is a conceptual diagram showing a variable speed power transmission clutch system having a multi-output structure according to a fifth embodiment of the present invention. [Figure 6] This is a perspective view showing a second rotating unit having a cylindrical body portion according to the present invention. [Figure 7] This is a perspective view showing a first rotating unit having a cylindrical body portion according to the present invention. [Figure 8] This is a perspective view showing a first rotating unit having a drum-shaped body according to the present invention. [Figure 9] This is a perspective view showing a first rotating unit having a disc-shaped main body according to the present invention. [Figure 10] This is a side cross-sectional view showing a modified embodiment of the second rotating unit according to the present invention. [Figure 11]This is a side cross-sectional view showing a modified embodiment of the second rotating unit according to the present invention. [Figure 12] This is a side cross-sectional view showing a modified embodiment of the first rotating unit according to the present invention. [Figure 13] This is a side cross-sectional view showing a modified embodiment of the first rotating unit according to the present invention. [Figure 14] This is a schematic diagram showing a modified embodiment of the magnetic strengthening plate according to the present invention. [Figure 15] This is a schematic diagram showing a modified embodiment of the magnetic strengthening plate according to the present invention. [Figure 16] This is a schematic diagram showing a modified embodiment of the magnetic strengthening plate according to the present invention. [Modes for carrying out the invention]

[0036] An embodiment of the present invention will be described in detail below with reference to the attached diagram.

[0037] Figure 1 is a conceptual diagram showing a variable speed power transmission clutch system having a multi-output structure according to the first embodiment of the present invention; Figure 2 is a conceptual diagram showing a variable speed power transmission clutch system having a multi-output structure according to the second embodiment of the present invention; Figure 3 is a conceptual diagram showing a variable speed power transmission clutch system having a single output structure according to the third embodiment of the present invention; and Figure 4 is a conceptual diagram showing a variable speed power transmission clutch system having a multi-output structure according to the fourth embodiment of the present invention.

[0038] Referring to Figures 1 to 5, a variable-speed power transmission clutch system is disclosed that uses eddy currents generated by magnetic force and a rotating magnetic field to drive multiple load shafts in correspondence to a single power shaft.

[0039] As shown in the figure, the present invention broadly consists of a load shaft B, a second rotating unit 20, a first rotating unit 10, and a power shaft A.

[0040] More specifically, the system includes: a plurality of load shafts B arranged concentrically; a plurality of second rotating units 20, each having a cylindrical body portion 21a at the end of the load shafts B and a magnet 22 formed around the outer diameter of the cylindrical body portion 21a; a first rotating unit 10, provided facing the outer diameter surfaces of the plurality of second rotating units 20, and having a magnetic reinforcement plate 12 on its surface facing the second rotating units 20 that reacts magnetically with the magnet 22; and a power shaft A coupled to the rotation center of the first rotating unit 10 to provide rotational force.

[0041] Here, the term "magnet 22" includes electromagnets, and the term "magnetic enhancement plate 12" refers collectively to materials that have the property of being affected by magnetic force from a magnet.

[0042] Figures 1 to 3 show an example where the axial direction of the power shaft A is parallel to the axial direction of the load shaft B.

[0043] Referring to Figure 1, the axis of the power shaft A is positioned so as to pass through the inner centers of the concentric circles of the multiple load shafts B, and the first rotating unit 10 provided at the end of the power shaft A forms a cylindrical body portion 11a.

[0044] The cylindrical main body portion 11a described above is positioned at the center of the concentric circles of the plurality of second rotating units 20. For example, the plurality of second rotating units 20 are arranged in the form of a planetary gear around the circumference of the first rotating unit 10.

[0045] At this time, a magnetic strengthening plate 12 is formed on the outer diameter surface of the cylindrical main body portion 11a so as to face the magnet 22 formed on the outer diameter surface of the second rotating unit 20.

[0046] Figure 6 is a perspective view showing a second rotating unit having a cylindrical body portion according to the present invention.

[0047] Referring to Figure 6, the second rotating unit 20 forms a second main body portion 21, that is, a cylindrical main body portion 21a, and a plurality of magnets 22 facing the first rotating unit 10 are arranged and coupled to the outer circumference of the cylindrical main body portion 21a.

[0048] In this case, it is preferable that multiple magnets 22 are arranged with alternating north and south poles.

[0049] An insertion groove for a magnet 22 may be formed on the outer circumference of the cylinder-shaped main body portion 21a. A magnetic force forming plate 23, which contacts one side of the magnet 22 and discharges the magnetic force generated from the magnet 22 to the outside, and a magnetic force forming fastening member 24, which fastens and secures the magnet 22 to the second main body portion 21 and discharges the magnetic force to the outside, are inserted and installed together with the magnet 22 in the insertion groove.

[0050] At this time, the second main body portion 21 forms a cylindrical main body portion 21a.

[0051] The first rotating unit 10 will be described below.

[0052] Figure 7 is a perspective view showing a first rotating unit having a cylindrical body portion according to the present invention.

[0053] Figure 7 is a perspective view showing a second rotating unit having a cylindrical body portion according to the present invention. Referring to Figure 7, the first rotating unit 10 consists of a first body portion 11 and a magnetic reinforcement plate, i.e., a magnetic reinforcement plate 12, coupled to the outer circumference of the first body portion 11. However, a corrosion prevention plate 13 can be further provided between the first body portion 11 and the magnetic reinforcement plate 12 to prevent corrosion from occurring on the first body portion 11 and the magnetic reinforcement plate 12 due to eddy currents.

[0054] Referring to Figure 2, the axis of the power shaft A is positioned so as to penetrate the inner centers of the concentric circles of the multiple load shafts B, and the first rotating unit 10 provided at the end of the power shaft A is provided so as to form a drum-shaped body portion 11b that encloses the outside of the concentric circles of the multiple second rotating units 20.

[0055] As shown in Figure 8, a magnetic strengthening plate 12 is formed on the inner surface of the drum-shaped main body 11b so as to face the magnet 22 formed on the outer diameter surface of the second rotating unit 20.

[0056] Figure 8 is a perspective view showing a first rotating unit having a drum-shaped body according to the present invention. Referring to Figure 8, the first rotating unit 10 has a first body 11, that is, a drum-shaped body 11b, and a magnetic reinforcement plate 12 facing the magnet 22 of the second rotating unit 20 is arranged and coupled to the inner circumference of the drum-shaped body 11b.

[0057] Here, the first main body portion 11 forms a drum-shaped main body portion 11b, and a corrosion prevention plate 13 can be further provided between the drum-shaped main body portion 11b and the magnetic reinforcement plate 12 to prevent corrosion from occurring on the first main body portion 11 and the magnetic reinforcement plate 12 due to eddy currents.

[0058] Referring to Figure 4, a variable speed power transmission clutch system having a multi-output structure can be provided, characterized in that the axial direction of the power shaft A is perpendicular to the axial direction of the load shaft B.

[0059] In this configuration, the first rotating unit 10, which is arranged radially on multiple load shafts B with respect to the axis center of the power shaft A and is provided at the end of the power shaft A, has a disc-shaped main body portion 11c, and a magnetic force strengthening plate 12 is formed on the disc-shaped main body portion 11c so as to face the magnet 22 formed on the outer diameter surface of the second rotating unit 20.

[0060] The first rotating unit constituting the disc-shaped main body 11c will now be described with reference to Figure 9.

[0061] Figure 9 is a perspective view showing a first rotating unit having a disc-shaped body portion according to the present invention, the first rotating unit 10 having a first body portion 11, i.e., a disc-shaped body portion 11c, and a plurality of magnetic force enhancing plates 12 facing the magnet 22 of the second rotating unit 20 are coupled to the inner circumference of the disc-shaped body portion 11c.

[0062] At this time, an insertion groove for providing a magnetic reinforcement plate 12 can be formed on the front surface of the disc-shaped main body portion 11c.

[0063] Furthermore, a corrosion prevention plate 13 can be provided between the disc-shaped main body 11c and the magnetic enhancement plate 12 to prevent corrosion from occurring on the first main body 11 and the magnetic enhancement plate 12 due to eddy currents.

[0064] The present invention, as described above, is characterized by the ability to control the load applied to the coupling by separating or bringing closer the positions of the first rotating unit 10 and the second rotating unit 20.

[0065] Figure 5 is a conceptual diagram showing a variable speed power transmission clutch system having a multi-output structure according to a fifth embodiment of the present invention.

[0066] Referring to Figure 5, a variable speed power transmission clutch system having a multi-output structure is disclosed, characterized in that a motor 30 is connected to the power shaft A to input power, and a pump 40 or the like is connected to the load shaft B to output power.

[0067] The variable speed power transmission clutch system having a multi-output structure according to the present invention has the advantage of being convenient to use and having an expanded range of applications, by providing a variable speed power transmission clutch system that allows multiple load shafts to be driven in correspondence to a single power shaft.

[0068] Furthermore, the present invention enables driving regardless of polarity changes, as only the attractive force between the magnet 22 and the magnetic reinforcement plate 12 is generated. Eddy currents are generated by the polarity change that occurs with the rotation of the magnet 22, i.e., the rotating magnetic field, and the magnetic reinforcement plate 12 rotates due to the rotating magnetic field. This allows for sudden stops during operation or reverse rotation during forward rotation without physical shock or mechanical damage. The non-contact design provides a cushioning effect through the separation space between the two rotating units, enabling smooth reverse rotation during operation without physical shock or mechanical damage to the power shaft and load shaft.

[0069] Figures 10 and 11 are side cross-sectional views showing modified embodiments of the second rotating unit according to the present invention. Figure 10 shows an example in which, in addition to the magnet 22 provided on the outer circumference of the second main body 21 of the second rotating unit 20, deep magnets 25 are further arranged radially around the rotating shaft (load shaft). Figure 11 shows an example in which a heat-generating fan 26, formed to penetrate axially around the rotating shaft (load shaft), is further arranged radially.

[0070] Figures 12 and 13 are side cross-sectional views showing modified embodiments of the first rotating unit according to the present invention. Figure 12 shows an example in which, in addition to the magnetic strengthening plate 12 provided on the outer circumference of the first main body portion 11 of the first rotating unit 10, copper plate air holes 15 are further arranged radially around the rotating shaft (power shaft). Figure 13 shows an example in which a heat-generating fan 16, formed to penetrate axially around the rotating shaft (power shaft), is further arranged radially.

[0071] Figures 14 to 16 are schematic diagrams showing modified embodiments of the magnetic reinforcement plate according to the present invention. The magnetic reinforcement plate 12 formed on the first rotating unit 10 of the present invention can form various forms of heat dissipation patterns 12a, similar to those shown in Figures 14 to 16.

[0072] Figures 14 and 16 show a heat dissipation pattern 12a with a lateral pattern parallel to the axial direction, and Figure 15 shows an example of forming a heat dissipation pattern 12a with a vertical pattern perpendicular to the axial direction.

[0073] As described above, the present invention transmits power in a non-contact, no-load state by using the magnetic force formed between a rotating unit including a magnetic force-enhancing plate 12 arranged on the load shaft and a rotating unit with a magnetic force-enhancing plate arranged on the power shaft. This makes it free from mechanical burnout, noise, vibration, and dust, and provides a stable output without periodic slip phenomena compared to conventional magnetic couplings.

[0074] Furthermore, the present invention enables forward and reverse rotation through a magnetic coupling with a magnet-to-non-magnetic structure, and the rotational speed and output can be controlled by freely adjusting the gap, thereby maximizing energy efficiency.

[0075] The motor pump of the present invention described above can be replaced by a power device such as an engine. Furthermore, the form and number of the first and second rotating units are not limited and can be varied in various ways.

[0076] As described above, the present invention is not limited to the specific preferred embodiments described above, and any person with ordinary skill in the art to which the invention belongs can, of course, carry out various modifications without departing from the gist of the invention as claimed in the claims, and such modifications are within the scope of the claims.

Claims

1. A variable-speed power transmission clutch system that uses eddy currents generated by magnetic force and a rotating magnetic field to drive multiple load shafts corresponding to one power shaft, A second rotating unit (20) having a cylindrical body portion (21a) formed at the end of the load shaft (B), and a magnet (22) formed around the outer diameter of the cylindrical body portion (21a); A first rotating unit (10) provided so as to face the outer diameter surfaces of the plurality of second rotating units (20); and A power shaft (A) coupled to the center of rotation of the first rotating unit (10) to provide rotational force; A variable speed power transmission clutch system having a multi-output structure, characterized in that the load shaft (B) and the power shaft (A) are arranged so that their axial directions are parallel to each other, and the first rotating unit (10) provided at the end of the power shaft (A) is provided so as to enclose the outside of the concentric circles of one or more second rotating units (20) by forming a drum-shaped body portion (11b), and a non-magnetic magnetic force enhancing plate (12) is formed on the inner surface of the drum-shaped body portion (11b) so as to react magnetically with a magnet (22) formed on the outer diameter surface of the second rotating unit (20).

2. A variable-speed power transmission clutch system that uses eddy currents generated by magnetic force and a rotating magnetic field to drive multiple load shafts corresponding to one power shaft, A second rotating unit (20) having a cylindrical body portion (21a) formed at the end of the load shaft (B), and a magnet (22) formed around the outer diameter of the cylindrical body portion (21a); A first rotating unit (10) provided so as to face the outer diameter surfaces of the plurality of second rotating units (20); and A power shaft (A) coupled to the center of rotation of the first rotating unit (10) to provide rotational force; A variable speed power transmission clutch system having a multi-output structure, characterized in that the load shaft (B) and the power shaft (A) are arranged so that their axial directions are perpendicular, a plurality of load shafts (B) are arranged radially with respect to the axial center of the power shaft (A), and the first rotating unit (10) provided at the end of the power shaft (A) forms a disc-shaped main body (11c), and a non-magnetic magnetic reinforcement plate (12) is formed on the disc-shaped main body (11c) so as to react magnetically with a magnet (22) formed on the outer diameter surface of the second rotating unit (20).

3. A variable speed power transmission clutch system having a multi-output structure according to claim 1, characterized in that the load applied to the coupling can be controlled by separating or bringing closer the positions of the first rotating unit (10) and the second rotating unit (20).

4. A variable speed power transmission clutch system having a multi-output structure according to claim 2, characterized in that the load applied to the coupling can be controlled by separating or bringing closer the positions of the first rotating unit (10) and the second rotating unit (20).

5. The variable speed power transmission clutch system having a multi-output structure according to claim 1, characterized in that the second rotating unit (20) comprises a second main body (21), a magnet (22) arranged and coupled around the opposing surface of the second main body (21) to the first rotating unit (10), a magnetic force forming plate (23) that contacts one side of the magnet (22) and discharges the magnetic force generated from the magnet (22) to the outside, and a magnetic force forming fastening member (24) that fastens and binds the magnet (22) to the second main body (21) and discharges the magnetic force to the outside.

6. The variable speed power transmission clutch system having a multi-output structure according to claim 2, characterized in that the second rotating unit (20) comprises a second main body (21), a magnet (22) arranged and coupled around the opposing surface of the second main body (21) to the first rotating unit (10), a magnetic force forming plate (23) that contacts one side surface of the magnet (22) and discharges the magnetic force generated from the magnet (22) to the outside, and a magnetic force forming fastening member (24) that fastens and binds the magnet (22) to the second main body (21) and discharges the magnetic force to the outside.

7. The variable speed power transmission clutch system having a multi-output structure according to claim 1, characterized in that the magnets (22) are arranged in alternating pairs of north poles and south poles.

8. The variable speed power transmission clutch system having a multi-output structure according to claim 2, characterized in that the magnets (22) are arranged in an alternating pattern of north poles and south poles.

9. A variable speed power transmission clutch system having a multi-output structure according to claim 1, characterized in that a motor (30) is connected to the power shaft (A) to input power, and a pump (40) or the like is connected to the load shaft (B) to output power.

10. A variable speed power transmission clutch system having a multi-output structure according to claim 2, characterized in that a motor (30) is connected to the power shaft (A) to input power, and a pump (40) or the like is connected to the load shaft (B) to output power.

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