A permanent magnet brake with two-way clutch

Abstract

The invention discloses a bidirectional clutch permanent magnet brake, which relates to the technical field of permanent magnet brakes, and comprises a brake body and a controller. The brake body comprises a mounting disc, a coil disc, a brake disc and a top cover. The input end of the mounting disc is connected with a connecting component, and the other end of the connecting component is installed with a bidirectional clutch component. A transmission shaft is installed between the mounting disc, the coil disc, the brake disc and the top cover. The connecting component is an accessory for assisting the connection between the dual clutch component and the brake body, so as to adapt to different permanent magnet brakes. When the device is in use, the brake disc can be clutched in two directions, and when the transmission shaft is braked, two or more groups of coils can be powered at the same time, so as to accelerate the braking time of the permanent magnet brake disc and increase the braking effect of the permanent magnet brake.

Description

Technical Field

[0001] The invention relates to the technical field of permanent magnet brakes, in particular to a bidirectional clutch permanent magnet brake. Background Art

[0002] Traditional spring-type electromagnetic brakes are widely used in various industrial fields. They rely on the elastic force of the spring to make the armature contact with the friction disk to achieve braking. The electromagnetic force generated by the energized coil offsets the elastic force of the spring, causing the armature to separate from the friction disk and release the braking force. Spring-type electromagnetic brakes are limited by their working principles and are generally larger in size and weight. Permanent magnet brakes have significant torque density advantages over traditional spring-type electromagnetic brakes, and are simple in structure, stable in suction, and highly reliable. However, when the permanent magnet brake is one-way clutched, it will not be able to adapt to more equipment, limiting the application scope of the permanent magnet brake. Although the existing permanent magnet brake can quickly brake the equipment through magnetic force, it cannot quickly brake the equipment when the equipment speed is fast. The equipment will only be completely braked after rotating a certain distance. Therefore, the braking effect of the existing permanent magnet brake is not better. Summary of the invention

[0003] The purpose of the present invention is to provide a bidirectional clutch permanent magnet brake to solve the problems raised in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a permanent magnet brake with bidirectional clutch, comprising a brake body and a controller, wherein the brake body comprises a mounting disk, a coil disk, a brake disk and a top cover, a connecting component is connected to the input end of the mounting disk, a bidirectional clutch component is installed at the other end of the connecting component, and a transmission shaft is installed between the mounting disk, the coil disk, the brake disk and the top cover.

[0005] Furthermore, a coil disk is installed on the mounting disk, and a resistance-increasing groove and multiple groups of spring grooves are provided on the coil disk. A return spring is installed inside the spring groove. A main coil is wound inside the coil disk, and the main coil is made of copper wire. The main coil is connected to a controller. A brake disk is installed on the other side of the coil disk. The resistance-increasing groove can increase the resistance of the brake disk. Multiple groups of brake pads are arranged on the coil disk, and the multiple groups of brake pads are equidistantly installed on the coil disk, and the brake pads cooperate with the brake disk.

[0006] Furthermore, a plurality of groups of resistance-increasing coils are installed inside the resistance-increasing groove, and the plurality of groups of resistance-increasing coils are respectively installed on both sides of the resistance-increasing groove, and the plurality of groups of resistance-increasing coils are respectively connected to the controller, and the resistance-increasing groove and the resistance-increasing coil are respectively matched with the brake disc; When one group of the resistance-increasing coils is energized, the other group of the resistance-increasing coils is de-energized.

[0007] Furthermore, a resistance increasing ring is installed on one side of the brake disc, and the resistance increasing ring includes multiple groups of resistance increasing magnets, half of the resistance increasing magnets have their S poles facing the outside of the resistance increasing groove, and the other half of the resistance increasing magnets have their S poles facing the inside of the resistance increasing groove, half of the resistance increasing magnets and the other half of the resistance increasing magnets are respectively and alternately installed on the barrier ring in sequence, and the resistance increasing ring cooperates with the resistance increasing groove.

[0008] Furthermore, a top cover is installed on the other side of the brake disc, a rotor hub is installed between the top covers, the rotor hub is connected to the top cover through a bearing, a mating tooth is provided at the bottom of the rotor hub, and a mounting tooth is installed on the inner ring of the brake disc. The brake disc meshes with the mating tooth at the bottom of the rotor hub through the mounting tooth, and a plurality of groups of magnets are provided on the outside of the rotor hub, the plurality of groups of magnets are equidistantly installed on the outside of the rotor hub, and the plurality of groups of magnets are embedded and installed on the rotor hub.

[0009] Furthermore, when the rotor hub rotates: the inner resistance-increasing coil generates current; When the inner resistance increasing coil is energized, the resistance increasing ring rotates in the resistance increasing groove, and the outer resistance increasing coil generates current.

[0010] Furthermore, the connecting assembly includes a connecting rod, a main mounting ring and a slave mounting ring, the two ends of the connecting rod are respectively connected to the main mounting ring and the slave mounting ring, the main mounting ring is connected to the dual clutch assembly, and the slave mounting ring is connected to the transmission shaft.

[0011] Furthermore, the dual-clutch assembly includes an outer cylinder, a spring is installed inside the outer cylinder, two groups of arc-shaped matching plates are installed at one end of the outer cylinder, the two groups of arc-shaped matching plates are installed on the outer cylinder at equal distances, the other end of the outer cylinder cooperates with the main mounting ring, the other end of the outer cylinder cooperates with the driving shaft, two groups of arc-shaped driving plates are installed on the driving shaft, and the arc-shaped driving plates are connected to the arc-shaped matching plates.

[0012] Furthermore, when the driving shaft rotates forward, the arc-shaped driving plate rotates forward to drive the arc-shaped matching plate, and the arc-shaped matching plate moves upward and rotates along the arc surface of the arc-shaped driving plate; When the driving shaft is reversed, the arc-shaped driving plate reverses to drive the arc-shaped matching plate, and the arc-shaped matching plate moves upward and rotates along the arc surface of the arc-shaped driving plate.

[0013] Furthermore, the controller is connected to an external control device.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. When the device is in use, the brake body of the device can be clutched in two directions, thereby realizing two-way clutching, and the two-way clutch component of the device is combined with the connection component to be applicable to more brakes; 2. When the brake body is working, the coil disc, the brake pad and the resistance increasing groove can act on the brake disc at the same time, so that the brake disc can brake quickly. Compared with the friction brake and the electromagnetic brake, the device can brake the transmission shaft faster and more stably. When it is used, after the coil disc attracts the brake disc, the brake disc will move toward the coil disc and contact with the coil disc. At the same time, the resistance increasing ring of the brake disc will rotate in the resistance increasing groove, and the contact side of the brake disc with the coil disc will rub against the brake pad. Then, when braking the transmission shaft, the transmission shaft can be braked at the same time through the coil disc, the brake pad and the resistance increasing groove; 3. When the brake body of the device is not working, the rotor hub and the resistance increasing ring will rotate between the brake body. Because a magnet is arranged on the outside of the rotor hub, and a resistance increasing coil is arranged on the inner ring of the resistance increasing groove on the coil disk, the resistance increasing coil on the inner ring will generate current. Because the resistance increasing ring is provided with a resistance increasing magnet, when the resistance increasing ring rotates in the resistance increasing groove, the resistance increasing coil on the outer ring of the resistance increasing groove will generate current. Therefore, the current generated by the two sets of resistance increasing coils can supplement the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the axonometric structure of the brake body of the present invention; Figure 3 This is a schematic diagram of the structure of the brake body of the present invention without the top cover; Figure 4 It is a structural schematic diagram of the coil disk of the present invention; Figure 5 It is a schematic cross-sectional structural diagram of the coil disk of the present invention; Figure 6 It is a schematic cross-sectional structural diagram of the brake disc of the present invention; Figure 7 It is a schematic diagram of the structure of the top cover of the present invention; Figure 8 is a schematic structural diagram of the rotor hub of the present invention; Fig. 9 It is a structural schematic diagram of the connection assembly and the bidirectional clutch assembly of the present invention; Fig.10 For the present invention Figure 4 Enlarged schematic diagram of point "A" in the figure.

[0016] In the figure: 1. brake body; 2. controller; 3. mounting plate; 4. coil plate; 41. resistance increasing groove; 411. resistance increasing coil; 42. spring groove; 43. return spring; 44. main coil; 45. brake pad; 5. brake disc; 51. resistance increasing ring; 52. resistance increasing magnet; 53. mounting teeth; 6. top cover; 61. rotor hub; 62. mating teeth; 7. connecting assembly; 71. connecting rod; 72. main mounting ring; 73. slave mounting ring; 8. two-way clutch assembly; 81. outer cylinder; 82. arc-shaped mating plate; 9. arc-shaped drive plate. DETAILED DESCRIPTION

[0017] 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.

[0018] Example: Figure 1-Figure 10 As shown, the present invention provides a technical solution of a permanent magnet brake with a two-way clutch, comprising a brake body 1 and a controller 2, wherein the brake body 1 comprises a mounting disc 3, a coil disc 4, a brake disc 5 and a top cover 6, wherein the input end of the mounting disc 3 is connected to a connecting component 7, and the other end of the connecting component 7 is installed with a two-way clutch component 8, and a transmission shaft is installed between the mounting disc 3, the coil disc 4, the brake disc 5 and the top cover 6; When the permanent magnet brake is in use, the equipment can be braked through the entire brake body 1, and the coil disk 4 can be controlled through the controller 2, and then the coil in the coil disk 4 can be powered. When powering, the coil in the coil disk 4 can be powered according to current needs. When the coil disk 4 is energized, it will have magnetism, and the magnetism will be greater than the reset spring 43 on the coil disk 4, thereby attracting the brake disk 5 to move closer to the coil disk 4, and then braking the transmission shaft. The dual-clutch component of the device can assist the brake body 1 to clutch in two directions, and the connecting component 7 is an accessory that assists the dual-clutch component and the brake body 1 to connect, thereby adapting to different permanent magnet brakes. Therefore, when the device is in use, the brake disk 5 can be clutched in two directions, and when braking the transmission shaft, two or more groups of coils can be powered at the same time, thereby accelerating the braking time of the permanent magnet brake disk 5 and increasing the braking effect of the permanent magnet brake.

[0019] like Figure 1-Figure 2As shown, in this embodiment, specifically, a coil disk 4 is installed on the mounting disk 3, and a resistance increasing groove 41 and a plurality of spring grooves 42 are provided on the coil disk 4, and a return spring 43 is installed inside the spring groove 42, and a main coil 44 is wound inside the coil disk 4, and the main coil 44 is made of copper wire, and the main coil 44 is connected to the controller 2, and a brake disk 5 is installed on the other side of the coil disk 4, and the resistance increasing groove 41 can increase the resistance of the brake disk 5, and a plurality of groups of brake pads 45 are arranged on the coil disk 4, and the plurality of groups of brake pads 45 are equidistantly installed on the coil disk 4, and the brake pads 45 cooperate with the brake disk 5; The mounting disk 3 of the device can facilitate the installation of the entire brake body 1 and the limitation of the position of the brake body 1, and the coil disk 4 of the device is arranged on the other side of the mounting disk 3. When the coil disk 4 of the device is in use, when the controller 2 controls the main coil 44 in the coil disk 4 to supply power, a magnetic field will be generated around the main coil 44. Since the magnetic field strength is greater than the elastic force of the reset spring 43, the magnetic field generated by the coil disk 4 can attract the brake disk 5 with its suction force, so that the brake disk 5 contacts the coil disk 4, and the brake disk 5 will first contact the brake pad 45. The brake pad 45 can increase the resistance of the brake disk 5 during rotation, thereby accelerating the braking effect of the drive shaft. After long-term use, the brake pad 45 needs to be replaced, because when the friction medium on the surface of the brake pad 45 is rubbed, it will be consumed. After long-term use, the staff needs to replace the brake pad 45.

[0020] like Figure 4-Figure 5 and Fig.10 As shown, in this embodiment, specifically, a plurality of groups of resistance increasing coils 411 are installed inside the resistance increasing groove 41, and the plurality of groups of resistance increasing coils 411 are respectively installed on both sides of the resistance increasing groove 41, and the plurality of groups of resistance increasing coils 411 are respectively connected to the controller 2, and the resistance increasing groove 41 and the resistance increasing coils 411 are respectively matched with the brake disc 5; When one group of the resistance-increasing coils 411 is powered on, the other group of the resistance-increasing coils 411 is powered off; When the resistance increasing groove 41 of the device is in use, it can increase the resistance of the brake disc 5. At the same time, because the brake disc 5 cooperates with the transmission shaft, the resistance of the transmission shaft will be increased, so that the transmission shaft can be braked quickly. When it is used specifically, because a plurality of groups of resistance increasing coils 411 are arranged in the resistance increasing groove 41, when the resistance increasing coils 411 are energized, a magnetic field will be generated around the resistance increasing coils 411. The generated magnetic field cooperates with the brake disc 5, thereby attracting the brake disc 5, so that the brake disc 5 is subjected to Another set of resistance, and then assists the coil disk 4 to brake the brake disk 5. When the two sets of resistance-increasing coils 411 are in use, when one set of resistance-increasing coils 411 is energized to generate a magnetic field, the other set of resistance-increasing coils 411 is in a power-off state, so that even when the brake disk 5 is braked, the other set of unenergized resistance-increasing coils 411 can generate current to supplement the device, and when both sets of resistance-increasing coils 411 are not energized, both sets of resistance-increasing coils 411 can generate current to supplement the power consumption of the device.

[0021] like Figure 6 As shown, in this embodiment, specifically, a resistance increasing ring 51 is installed on one side of the brake disc 5, and the resistance increasing ring 51 includes multiple groups of resistance increasing magnets 52, half of the resistance increasing magnets 52 have their S poles facing the outside of the resistance increasing groove 41, and the other half of the resistance increasing magnets 52 have their S poles facing the inside of the resistance increasing groove 41, and the half of the resistance increasing magnets 52 and the other half of the resistance increasing magnets 52 are respectively and alternately installed on the barrier ring in sequence, and the resistance increasing ring 51 cooperates with the resistance increasing groove 41; When the brake disc 5 of the device is in use, it mainly has a braking effect, so that the transmission shaft can be braked and limited. In specific use, when the coil disc 4 is energized, the attraction generated by the coil disc 4 will attract the brake disc 5, so that the brake disc 5 moves closer to the coil disc 4 and contacts with the coil disc 4, and the resistance ring 51 on the brake disc 5 will be in the resistance increasing groove 41. As the brake disc 5 rotates, because multiple groups of resistance increasing magnets 52 are provided on the resistance increasing ring 51, and because the resistance increasing magnets 52 are arranged as a group with the S pole facing outward and the N pole of another group of resistance increasing magnets 52 facing in the same direction, when the brake disc 5 rotates, the resistance increasing magnets 52 will continue to rotate in the resistance increasing groove 41, and when the magnetic field interacts with the conductor in the resistance increasing coil 411, the magnetic flux changes, causing the free electrons to be acted upon by force and form a current, thereby supplementing the power consumption of the device.

[0022] like Figure 1-Figure 2 and Figure 7As shown, in this embodiment, specifically, a top cover 6 is installed on the other side of the brake disc 5, a rotor hub 61 is installed between the top covers 6, the rotor hub 61 is connected to the top cover 6 through a bearing, a matching tooth 62 is provided at the bottom of the rotor hub 61, a mounting tooth 53 is installed on the inner ring of the brake disc 5, the brake disc 5 is meshed with the matching tooth 62 at the bottom of the rotor hub 61 through the mounting tooth 53, a plurality of groups of magnets are provided on the outside of the rotor hub 61, the plurality of groups of magnets are equidistantly installed on the outside of the rotor hub 61, and the plurality of groups of magnets are embedded and installed on the rotor hub 61; When in use, the top cover 6 of the device can limit the brake disc 5 and limit the position of the transmission shaft. The drive shaft is mainly installed and limited by the rotor hub 61. At the same time, the rotor hub 61 can also install the brake disc 5, and the matching teeth 62 at the bottom of the rotor hub 61 engage with the installation teeth 53 on the brake disc 5. When the rotor hub 61 rotates with the transmission shaft, the brake disc 5 will also be driven to rotate. When the brake disc 5 is attracted, the brake disc 5 will move closer to the coil disc 4 during the rotation. When the brake disc 5 is braked by resistance, the transmission shaft will be braked together. When braking is not required, because multiple groups of magnets are arranged on the outside of the rotor hub 61, the multiple groups of magnets will rotate in a group of resistance-increasing coils 411 on the inside, so that the group of resistance-increasing coils 411 on the inside can generate current, thereby supplementing the device.

[0023] like Figure 8 As shown, in this embodiment, specifically, when the rotor hub 61 rotates: the inner resistance-increasing coil 411 will generate current; When the inner resistance increasing coil 411 is energized, the resistance increasing ring 51 rotates in the resistance increasing slot 41, and the outer resistance increasing coil 411 generates current. When the magnetic field interacts with the conductor in the resistance-increasing coil 411, the magnetic flux changes, causing the free electrons to be acted upon by force and form an electric current, thereby supplementing the power consumption of the device.

[0024] like Fig. 9 As shown, in this embodiment, specifically, the connecting assembly 7 includes a connecting rod 71, a main mounting ring 72 and a slave mounting ring 73, the two ends of the connecting rod 71 are respectively connected to the main mounting ring 72 and the slave mounting ring 73, the main mounting ring 72 is connected to the dual clutch assembly, and the slave mounting ring 73 is connected to the transmission shaft; The connecting component 7 of the device is mainly used to assist the coordination between the dual clutch component and the brake body 1. When in use, it can be connected to the dual clutch component through the main mounting ring 72, and can be connected to the transmission shaft in the brake body 1 through the slave mounting ring 73, thereby realizing the coordination of the dual clutch component with the brake body 1. When the brake body 1 is replaced, the connecting component 7 needs to be replaced, so that the dual clutch component can continue to be used.

[0025] like Figure 1 and Fig. 9 As shown, in this embodiment, specifically, the dual clutch assembly includes an outer cylinder 81, a spring is installed inside the outer cylinder 81, two groups of arc-shaped matching plates 82 are installed at one end of the outer cylinder 81, and the two groups of arc-shaped matching plates 82 are installed on the outer cylinder 81 at equal distances, and the other end of the outer cylinder 81 is matched with the main mounting ring 72, and the other end of the outer cylinder 81 is matched with the driving shaft, and two groups of arc-shaped driving plates 9 are installed on the driving shaft, and the arc-shaped driving plates 9 are connected to the arc-shaped matching plates 82; When in use, the dual-clutch assembly of the device can clutch the brake body 1 in two directions. During specific use, when the driving shaft rotates, it can drive the arc-shaped driving plate 9 to rotate. Because the arc-shaped driving plate 9 and the arc-shaped matching plate 82 cooperate with each other, the arc-shaped driving plate 9 can drive the arc-shaped matching plate 82 to rotate. When the driving shaft rotates forward, the arc-shaped driving plate 9 will drive the arc-shaped matching plate 82 to rotate forward, and when the driving shaft reverses, the arc-shaped driving plate 9 will drive the arc-shaped matching plate 82 to reverse, thereby realizing two-way clutching.

[0026] like Figure 1 and Fig. 9 As shown, in this embodiment, specifically, when the driving shaft rotates forward: the arc-shaped driving plate 9 rotates forward to drive the arc-shaped matching plate 82, and the arc-shaped matching plate 82 moves upward and rotates along with the arc surface of the arc-shaped driving plate 9; When the driving shaft is reversed, the arc-shaped driving plate 9 reverses to drive the arc-shaped matching plate 82, and the arc-shaped matching plate 82 moves upward and rotates along with the arc surface of the arc-shaped driving plate 9; When the driving shaft rotates, the arc-shaped driving plate 9 will drive the arc-shaped matching plate 82 to rotate. When the two rotate, the arc-shaped matching plate 82 will shrink upward along the arc surface of the arc-shaped driving plate 9. When shrinking, the arc-shaped matching plate 82 will squeeze the spring inside it. After the driving shaft stops rotating, the spring inside it will reset the arc-shaped matching plate 82.

[0027] like Figure 1 As shown, in this embodiment, specifically, the controller 2 is connected to the peripheral control device; The coil disk 4 of the device can be controlled by the controller 2, and any group of coils inside the coil disk 4 can be accurately energized by the controller 2, and the staff can control the controller 2 through an external control device, which makes it convenient for the staff to operate.

[0028] Working principle: When the permanent magnet brake is in use, the equipment can be braked through the entire brake body 1, and the coil disk 4 can be controlled through the controller 2, and then the coil in the coil disk 4 is powered. When powering, the coil in the coil disk 4 can be powered according to current needs. When the coil disk 4 is energized, it will have magnetism, and the magnetism will be greater than the reset spring 43 on the coil disk 4, thereby attracting the brake disk 5 to move closer to the coil disk 4, and then braking the drive shaft. The dual-clutch component of the device can assist the brake body 1 to clutch in two directions, and the connecting component 7 is an accessory that assists the connection between the dual-clutch component and the brake body 1, so as to adapt to different permanent magnet brakes. Therefore, when the device is in use, the brake disk 5 can be clutched in two directions, and when braking the drive shaft, two or more groups of coils can be powered at the same time, thereby accelerating the braking time of the permanent magnet brake disk 5 and increasing the braking effect of the permanent magnet brake.

[0029] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A bidirectional clutch permanent magnet brake, comprising a brake body (1) and a controller (2), characterized in that: The brake body (1) comprises a mounting disc (3), a coil disc (4), a brake disc (5) and a top cover (6); an input end of the mounting disc (3) is connected to a connecting component (7); a two-way clutch component (8) is installed at the other end of the connecting component (7); and a transmission shaft is installed between the mounting disc (3), the coil disc (4), the brake disc (5) and the top cover (6).

2. A bidirectional clutch permanent magnet brake according to claim 1, characterized in that: A coil disk (4) is mounted on the mounting disk (3), the coil disk (4) is provided with a resistance increasing groove (41) and a plurality of spring grooves (42), a return spring (43) is mounted inside the spring groove (42), a main coil (44) is wound inside the coil disk (4), the main coil (44) is made of copper wire, the main coil (44) is connected to the controller (2), a brake disk (5) is mounted on the other side of the coil disk (4), the resistance increasing groove (41) can increase the resistance of the brake disk (5), a plurality of groups of brake pads (45) are arranged on the coil disk (4), the plurality of groups of brake pads (45) are mounted on the coil disk (4) at equal distances, and the brake pads (45) cooperate with the brake disk (5).

3. A bidirectional clutch permanent magnet brake according to claim 2, characterized in that: A plurality of groups of resistance increasing coils (411) are installed inside the resistance increasing groove (41), the plurality of groups of resistance increasing coils (411) are respectively installed on both sides of the resistance increasing groove (41), the plurality of groups of resistance increasing coils (411) are respectively connected to a controller (2), and the resistance increasing groove (41) and the resistance increasing coils (411) are respectively matched with a brake disc (5); When one group of the resistance-increasing coils (411) is powered on, the other group of the resistance-increasing coils (411) is powered off.

4. A bidirectional clutch permanent magnet brake according to claim 3, characterized in that: A resistance increasing ring (51) is mounted on one side of the brake disc (5), and the resistance increasing ring (51) includes a plurality of groups of resistance increasing magnets (52), wherein the S poles of half of the resistance increasing magnets (52) face the outside of the resistance increasing groove (41), and the S poles of the other half of the resistance increasing magnets (52) face the inside of the resistance increasing groove (41), and the half of the resistance increasing magnets (52) and the other half of the resistance increasing magnets (52) are respectively and alternately mounted on the barrier ring in sequence, and the resistance increasing ring (51) cooperates with the resistance increasing groove (41).

5. A bidirectional clutch permanent magnet brake according to claim 4, characterized in that: A top cover (6) is installed on the other side of the brake disc (5), a rotor hub (61) is installed between the top covers (6), the rotor hub (61) is connected to the top cover (6) via a bearing, a matching tooth (62) is provided at the bottom of the rotor hub (61), a mounting tooth (53) is installed on the inner ring of the brake disc (5), the brake disc (5) meshes with the matching tooth (62) at the bottom of the rotor hub (61) via the mounting tooth (53), a plurality of groups of magnets are provided outside the rotor hub (61), the plurality of groups of magnets are equidistantly installed outside the rotor hub (61), and the plurality of groups of magnets are embedded and installed on the rotor hub (61).

6. A bidirectional clutch permanent magnet brake according to claim 5, characterized in that: When the rotor hub (61) rotates, the inner resistance-increasing coil (411) generates current; When the inner resistance increasing coil (411) is energized, the resistance increasing ring (51) rotates in the resistance increasing groove (41), and the outer resistance increasing coil (411) generates current.

7. A bidirectional clutch permanent magnet brake according to claim 6, characterized in that: The connecting assembly (7) comprises a connecting rod (71), a main mounting ring (72) and a slave mounting ring (73); the two ends of the connecting rod (71) are respectively connected to the main mounting ring (72) and the slave mounting ring (73); the main mounting ring (72) is connected to the dual clutch assembly; and the slave mounting ring (73) is connected to the transmission shaft.

8. A bidirectional clutch permanent magnet brake according to claim 7, characterized in that: The dual clutch assembly comprises an outer cylinder (81), a spring is installed inside the outer cylinder (81), two groups of arc-shaped matching plates (82) are installed at one end of the outer cylinder (81), the two groups of arc-shaped matching plates (82) are installed on the outer cylinder (81) at equal distances, the other end of the outer cylinder (81) is matched with a main mounting ring (72), the other end of the outer cylinder (81) is matched with a driving shaft, two groups of arc-shaped driving plates (9) are installed on the driving shaft, and the arc-shaped driving plates (9) are connected to the arc-shaped matching plates (82).

9. A bidirectional clutch permanent magnet brake according to claim 8, characterized in that: When the driving shaft rotates forward, the arc-shaped driving plate (9) rotates forward to drive the arc-shaped matching plate (82), and the arc-shaped matching plate (82) moves upward and rotates along the arc surface of the arc-shaped driving plate (9); When the driving shaft reverses, the arc-shaped driving plate (9) reverses to drive the arc-shaped matching plate (82), and the arc-shaped matching plate (82) moves upward and rotates along the arc surface of the arc-shaped driving plate (9).

10. A bidirectional clutch permanent magnet brake according to claim 9, characterized in that: The controller (2) is connected to an external control device.

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