Torque increasing device

Abstract

The invention discloses a torque increasing device, which belongs to the technical field of transmission devices, and comprises a main shaft, at least one torque increasing mechanism is sleeved on the main shaft, and the input end is in transmission connection with a driving unit; the torque increasing mechanism comprises a set of first magnetic force execution units and a set of second magnetic force execution units opposite to the first magnetic force execution units, and when the first magnetic force execution units rotate to be right opposite to the second magnetic force execution units, the ends, facing each other, of the first magnetic force execution units and the second magnetic force execution units have homopolar magnetic force and repel each other. The torque output by the driving unit is amplified through the torque increasing mechanism, so that the specific transmission requirement is met. According to the torque increasing mechanism, the output torque of the main shaft is increased through repulsive force generated by the same magnetic poles when the two magnetic force execution units directly face each other, and compared with a traditional torque increasing device, the torque increasing mechanism is simpler in structure, better in stability and wider in applicability.

Description

Technical Field

[0001] This invention relates to the field of transmission device technology, and more specifically to a torque amplification device. Background Technology

[0002] Torque amplification devices can increase the input torque by a specific ratio to meet the power requirements of different equipment under various operating conditions. Currently, common torque amplification devices on the market mainly include gear-type, hydraulic-type, and mechanical-type devices. Although these devices can achieve the function of torque amplification to a certain extent, their performance in practical applications is unsatisfactory, revealing many drawbacks.

[0003] Gear-type torque amplification devices typically rely on multi-stage gear transmissions to increase torque. However, multi-stage gear transmissions inevitably lead to significant energy loss. During gear operation, friction and meshing impact between the gear teeth generate heat, consuming a large amount of input energy and reducing transmission efficiency. Furthermore, the complex gear structure significantly increases the size and weight of the device, occupying considerable installation space. This severely limits its application in applications with strict space and weight constraints, such as aerospace equipment and small precision machinery. Moreover, frequent gear meshing and wear can easily lead to equipment failure, reducing the device's stability and reliability, and increasing maintenance costs and downtime. While hydraulic torque amplification devices can achieve significant torque increases to a certain extent, their response speed is slow and the system's dynamic performance is poor. In applications requiring rapid torque output adjustments, such as the acceleration and braking of automobiles, hydraulic torque amplification devices struggle to meet real-time requirements. Furthermore, hydraulic systems are prone to leaks, which not only pollute the environment but also affect the normal operation of the device and reduce its lifespan.

[0004] Mechanical torque amplification devices, such as friction-based torque amplifiers, rely on friction to transmit torque, which makes them prone to slippage, leading to unstable torque transmission and poor amplification effect. Furthermore, the friction components wear out quickly, requiring frequent replacement, increasing equipment maintenance workload and operating costs.

[0005] Therefore, the present invention provides a torque increasing device. Summary of the Invention

[0006] The purpose of this invention is to provide a torque amplification device.

[0007] To solve the above-mentioned technical problems, the objective of this invention is achieved as follows: A torque amplification device includes: a main shaft, on which at least one torque amplification mechanism is sleeved; The torque amplification mechanism includes: a support frame and a rotating frame concentrically mounted on the main shaft. The support frame is fixedly mounted and has a plurality of first magnetic actuators evenly distributed along the circumference of the main shaft. The rotating frame rotates synchronously with the main shaft and has a plurality of second magnetic actuators evenly distributed along the circumference of the main shaft and rotating synchronously therewith. The rotating frame is configured such that when it drives the second magnetic actuators to rotate, each second magnetic actuator periodically moves to a position aligned radially with one of the first magnetic actuators along the main shaft. Both the first magnetic actuator and the second magnetic actuator are configured to change the magnetic force intensity between their opposing ends. When the second magnetic actuator rotates to be radially aligned with the first magnetic actuator along the main axis, the repulsive force between the opposing ends of the first magnetic actuator and the second magnetic actuator reaches its maximum value.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme, the first magnetic actuation unit and the second magnetic actuation unit have the same structure, both including a first part and a second part; The first part includes a first outer shell, a rotatable shaft is inserted into the center of the first outer shell, a first end of the shaft extends to the outside of the first end face of the first outer shell, and a second end is connected to a first permanent magnet; the first permanent magnet is located outside the second end face of the first outer shell, and it includes two sub-permanent magnets symmetrically arranged, and the magnetic poles of the two sub-permanent magnets are opposite along their axial directions; The second part includes a second outer shell, inside which two second permanent magnets are symmetrically arranged, and the magnetic poles of the two second permanent magnets are opposite along their axial directions; When the first part is connected to the second part, the first permanent magnet is located between the two second permanent magnets.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme, a first transmission wheel is fixedly sleeved on the main shaft, and the first transmission wheel is connected to a second transmission wheel through a first transmission belt; the second transmission wheel is connected to the shaft of the first magnetic actuator to drive the first permanent magnet of the first magnetic actuator to rotate; When the second magnetic actuator rotates with the rotating frame, the shaft of the second magnetic actuator rotates synchronously to drive the first permanent magnet of the second magnetic actuator to rotate.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme, the shaft end of the second magnetic actuation unit is provided with a first gear, which meshes with a toothed ring concentrically arranged on the support frame.

[0011] Based on the above scheme and as a preferred embodiment, the number of the first transmission wheel and the second transmission wheel is one; the second transmission wheel is connected to the shaft of one of the first magnetic actuators via a connecting shaft; the number of connecting shafts is equal to the number of the first magnetic actuators, and they are connected to the first magnetic actuators one-to-one; each connecting shaft is fitted with a third transmission wheel, and all the third transmission wheels are connected by a second transmission belt to achieve synchronous rotation.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme, a second gear is provided at the end of the shaft of the first magnetic actuator, and a third gear that meshes with the second gear is sleeved on the connecting shaft.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme, the support frame is provided with a plurality of magnetic conductive sheets, which are located between two adjacent first magnetic force actuation units and are arranged corresponding to the second magnetic force actuation unit.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme, the rotating frame is provided with a plurality of magnetic conductive plates, which are located between two adjacent second magnetic force actuation units and are arranged corresponding to the first magnetic force actuation unit.

[0015] Based on the above scheme and as a preferred embodiment, the rotating frame is provided with a plurality of support plates evenly distributed along its circumference. The number of support plates is equal to that of the second magnetic actuator, and only one support plate is provided between two adjacent second magnetic actuators. A first magnetic conductive sheet is provided on the support plate. When the second magnetic actuator rotates to a position where it is offset from the first magnetic actuator, the first magnetic conductive sheet is always opposite to the first magnetic actuator. A rotatable support plate is fitted onto the main shaft. The support plate is provided with a number of second magnetic sheets equal to the number of the second magnetic actuators. When the second magnetic actuator rotates to a position where it is offset from the first magnetic actuator, the second magnetic sheets are always opposite to the second magnetic actuator.

[0016] Based on the above scheme and as a preferred embodiment of the above scheme, the rotating support plate is connected to the rotating frame through a transmission connection mechanism to realize that the rotating support plate rotates synchronously in opposite directions relative to the rotating frame; The transmission connection mechanism includes a first bevel gear, a second bevel gear, and a third bevel gear; the first bevel gear is sleeved on the main shaft and rotates synchronously therewith; the second bevel gear is sleeved on the main shaft opposite to the first bevel gear and can rotate relative to the main shaft; the rotating support plate is connected to the second bevel gear and rotates synchronously therewith; a first turntable is rotatably sleeved on the outside of the first bevel gear, and a second turntable is rotatably sleeved on the outside of the second bevel gear; a rotating connecting seat is provided between the first turntable and the second turntable and connected to both; the third bevel gear is rotatably connected to the rotating connecting seat, perpendicular to the first bevel gear and the second bevel gear, and meshes with the first bevel gear and the second bevel gear.

[0017] Compared with existing technologies, this invention has the following advantages and beneficial effects: This invention amplifies the torque output of the drive unit through a torque amplification mechanism to meet specific transmission requirements. The torque amplification mechanism utilizes the repulsive force generated when two magnetic actuators face each other and have the same magnetic poles to increase the output torque of the spindle. Compared with traditional torque amplification devices, it has a simpler structure, better stability, and wider applicability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0019] Figure 2 This is a schematic diagram of the torque increasing mechanism in Embodiment 1 of the present invention.

[0020] Figure 3 This is a front view schematic diagram of the torque increasing mechanism according to Embodiment 1 of the present invention.

[0021] Figure 4 This is a schematic diagram of the first part of the torque increasing mechanism according to Embodiment 1 of the present invention.

[0022] Figure 5 This is a schematic diagram of the second part of the torque increasing mechanism in Embodiment 1 of the present invention.

[0023] Figure 6 This is a schematic diagram of the magnetic actuation unit structure of the present invention.

[0024] Figure 7 This is a cross-sectional view of the magnetic actuation unit of the present invention.

[0025] Figure 8 This is a schematic diagram of the first part of the magnetic actuation unit of the present invention.

[0026] Figure 9 This is a schematic diagram of the exploded structure of the second part of the magnetic actuation unit of the present invention.

[0027] Figure 10 This is an exploded view of the first part of the magnetic actuator of the present invention.

[0028] Figure 11 This is a schematic diagram of the change in the magnetic poles of the permanent magnet during the rotation of the magnetic actuator of the present invention.

[0029] Figure 12 This is a partial structural schematic diagram of Embodiment 2 of the present invention.

[0030] Figure 13 for Figure 12 Explosion diagram of part of the structure.

[0031] In the diagram: 1. Main shaft; 2. Support frame; 3. Mounting base; 4. First magnetic actuator; 5. Rotating frame; 6. Second magnetic actuator; 7. First gear; 8. Gear ring; 9. First transmission wheel; 10. First transmission belt; 11. Second transmission wheel; 12. Connecting shaft; 13. Third transmission wheel; 14. Second transmission belt; 15. Second gear; 16. Third gear; 17. Base; 18. Support plate; 19. First magnetic guide plate; 20. Rotating support plate; 21. Second magnetic guide plate; 22. First bevel gear; 23. Second bevel gear; 24. Third bevel gear; 25. First turntable; 26. Second turntable; 27. Rotating connecting base; 41. First outer shell; 42. Shaft; 43. First permanent magnet; 44. Second outer shell; 45. Second permanent magnet; 46. Bearing; 47. Connecting part; 48. Cover plate; 49. Shielding ring. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions of the present invention, preferred embodiments of the present invention are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present invention. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting the present invention.

[0033] Example 1:

[0034] like Figure 1 As shown, a torque amplification device includes: a main shaft 1, on which at least one torque amplification mechanism is sleeved, the input end of which is connected to a drive unit for transmission.

[0035] In this embodiment, there are two torque amplification mechanisms, symmetrically mounted on the main shaft 1. The drive unit is a servo motor.

[0036] like Figures 2 to 5 As shown, the torque amplification mechanism includes a support frame 2, a rotating frame 5, and a first transmission wheel 9; The support frame 2 is fixedly mounted on the main shaft 1. Several mounting seats 3 are evenly distributed around the circumference of the main shaft 1 on the support frame 2. A first magnetic actuator 4, facing the main shaft 1, is mounted on each mounting seat 3. Each mounting seat 3 has a rotatable connecting shaft 12. The axis of the connecting shaft 12 is perpendicular to the axis of the first magnetic actuator 4 and parallel to the axis of the main shaft 1. A third gear 16 is located at the end of the connecting shaft 12. The third gear 16 meshes with a second gear 15 connected to the end of the shaft 42 of the first magnetic actuator 4, thus achieving a transmission connection between the connecting shaft 12 and the shaft 42 of the first magnetic actuator 4.

[0037] Preferably, the mounting seats 3 on the support frame 2 of the two sets of torque amplification mechanisms are staggered.

[0038] like Figure 3 As shown, the rotating frame 5 is mounted on the main shaft 1, concentrically arranged with the support frame 2, and can rotate with the main shaft 1. The rotating frame 5 is equipped with a plurality of second magnetic actuators 6 evenly distributed along the circumference of the main shaft 1 and rotating synchronously therewith. The rotating frame 5 is configured such that when it drives the second magnetic actuators 6 to rotate, each second magnetic actuator 6 periodically moves to a position aligned radially with a first magnetic actuator 4 along the main shaft 1. Preferably, the number of first magnetic actuators 4 is equal to the number of second magnetic actuators 6, both are arranged radially along the main shaft 1, and are arranged opposite to each other. When the rotating frame 5 drives the second magnetic actuators 6 to rotate, each second magnetic actuator 6 sequentially aligns radially with each first magnetic actuator 4 along the main shaft 1.

[0039] The first magnetic actuator 4 and the second magnetic actuator 6 are both configured to change the magnetic force intensity between their opposing ends. When the second magnetic actuator 6 rotates to be radially aligned with the first magnetic actuator 4 along the main shaft 1, the repulsive force between the opposing ends of the first magnetic actuator 4 and the second magnetic actuator 6 reaches its maximum value.

[0040] like Figure 4 As shown, a first gear 7 is provided at the end of the shaft 42 of the second magnetic actuator 6. The first gear 7 meshes with a toothed ring 8 concentrically mounted on the support frame 2. When the second magnetic actuator 6 rotates with the rotating frame 5, the first gear 7 rotates in conjunction with the toothed ring 8, and the shaft 42 of the second magnetic actuator 6 rotates synchronously with the first gear 7.

[0041] A first transmission wheel 9 is mounted on the main shaft 1. The first transmission wheel 9 is connected to a second transmission wheel 11 mounted on the mounting base 3 via a first transmission belt 10. Specifically, there is one second transmission wheel 11, mounted on the mounting base 3 and mounted on a connecting shaft 12 on the mounting base 3, which can drive the connecting shaft 12 to rotate. When the main shaft 1 rotates, it drives the first transmission wheel 9 to rotate, which in turn drives the second transmission wheel 11 to rotate via the first transmission belt 10, and the second transmission wheel 11 drives the connecting shaft 12 to rotate.

[0042] To ensure synchronous rotation of each first magnetic actuator 4, a third transmission wheel 13 is fitted onto the connecting shaft 12 corresponding to each first magnetic actuator 4. All the third transmission wheels 13 are connected together by a second transmission belt 14 to achieve synchronous rotation. When the first transmission wheel 9 drives one connecting shaft 12 to rotate, all the connecting shafts 12 rotate synchronously under the action of the second transmission belt 14, thereby driving all the shafts 42 of the first magnetic actuator 4 to rotate synchronously.

[0043] During the process of the second magnetic actuator 6 revolving from being directly opposite a first magnetic actuator 4 (aligned radially along the main axis 1) to being directly opposite the next first magnetic actuator 4, the number of rotations of its shaft 42 is a positive integer multiple of 1. Preferably, during the process of the second magnetic actuator 6 revolving from being directly opposite a first magnetic actuator 4 to being directly opposite the next first magnetic actuator 4, its shaft 42 rotates one revolution. The shaft 42 of the first magnetic actuator 4 and the shaft 42 of the second magnetic actuator 6 rotate synchronously, that is, when the shaft 42 of the second magnetic actuator 6 rotates one revolution, the shaft 42 of the first magnetic actuator 4 also rotates one revolution, so as to ensure that when the second magnetic actuator 6 revolves to be directly opposite the first magnetic actuator 4, the shafts 42 of both rotate to the same angle, so that when the two magnetic actuators are directly opposite each other, the magnetic force at their respective ends is activated, the magnetic force intensity reaches its maximum value, and a repulsive force is generated.

[0044] The support frame 2 is provided with several magnetic plates, which are located between two adjacent first magnetic force actuation units 4 and are positioned corresponding to the second magnetic force actuation units 6. At the same time, the rotating frame 5 is also provided with several magnetic plates, which are located between two adjacent second magnetic force actuation units 6 and are positioned corresponding to the first magnetic force actuation units 4.

[0045] The function of the magnetic guide plate is to reduce the force required for the magnetic actuator to rotate, thereby reducing the burden on the drive unit. The magnetic guide plate has high magnetic permeability, and the magnetic field generated by the magnet has a "preferential" characteristic of passing through materials with high magnetic permeability. Therefore, most of the magnetic field lines of the first permanent magnet 43 and the second permanent magnet 45 that would normally pass through the air will instead choose to pass through the interior of the magnetic guide plate. This weakens the magnetic field strength between the first permanent magnet 43 and the second permanent magnet 45, thus reducing the interaction force between them and lowering the force required to rotate the first permanent magnet 43.

[0046] The torque increasing device also includes a base 17, and a support frame 2 is fixedly mounted on the base 17.

[0047] like Figures 6 to 10 As shown, the first magnetic actuator 4 and the second magnetic actuator 6 have the same structure, both including a first part and a second part; like Figure 8 and Figure 10 As shown, the first part includes a first outer shell 41 with a central opening and a rotatable shaft 42 inserted inside. The first end of the shaft 42 extends to the outside of the first end face of the first outer shell 41, and the second end is provided with a connecting part 47. A first permanent magnet 43 is detachably connected to the connecting part 47, and the first permanent magnet 43 is located outside the second end face of the first outer shell 41.

[0048] The first permanent magnet 43 includes two symmetrically arranged sub-permanent magnets, and the magnetic poles of the two sub-permanent magnets are opposite in direction along their axial direction. Preferably, the first permanent magnet 43 has a cylindrical structure, and the two sub-permanent magnets have a semi-cylindrical structure. The magnetic poles of the sub-permanent magnets are arranged along their axial direction, with the top end being an N (S) pole and the bottom end being an S (N) pole. The specific arrangement is shown in the attached figure.

[0049] Preferably, such as Figure 7 As shown, the shaft 42 and the first housing 41 rotate relative to each other via bearings 46. There are two bearings 46, located near the first and second ends of the first housing 41, respectively. Specifically, both the first and second end faces of the first housing 41 have recessed mounting grooves, and the two bearings 46 are respectively installed in the two mounting grooves. Meanwhile, the connecting part 47 is circular and blocks the bearing 46 located at the second end of the first housing 41; a cover plate 48 detachably connected to the first end of the first housing 41 blocks the bearing 46 located at the first end of the first housing 41, thus concealing the two bearings 46. The cover plate 48 is detachable from the first housing 41 by screws, and when the cover plate 48 is connected to the first housing 41, its top surface is flush with the first end face of the first housing 41 and does not protrude from the first housing 41.

[0050] like Figure 9As shown, the second part includes a second outer shell 44, and two second permanent magnets 45 are symmetrically arranged inside the second outer shell 44. The magnetic poles of the two second permanent magnets 45 are opposite along their axes.

[0051] Preferably, the second permanent magnet 45 has an arc structure and is concentrically arranged with the first permanent magnet 43. A shielding ring 49 is provided inside the second outer shell 44, and the shielding ring 49 is fixedly connected to the top of the second permanent magnet 45 to fix the second permanent magnet 45.

[0052] When the first part is connected to the second part, the first permanent magnet 43 is located between the two second permanent magnets 45.

[0053] like Figure 11 As shown, the two sub-permanent magnets of the first permanent magnet 43 correspond to the two second permanent magnets 45 respectively. When the first permanent magnet 43 rotates, the correspondence between the two sub-permanent magnets and the two second permanent magnets 45 can be switched. That is, the first sub-permanent magnet rotates from facing the first second permanent magnet 45 to facing the second second permanent magnet 45, thereby changing the magnetic field distribution and making the bottom end (working end) of the magnetic force execution unit appear magnetic or non-magnetic.

[0054] In this embodiment, the shaft 42 of the first magnetic actuator 4 is connected to the second gear 15. The first outer shell 41 and the second outer shell 44 of the first magnetic actuator 4 are connected together and fixedly connected to the mounting base 3. The first magnetic actuator 4 does not rotate on its own, but only drives the first permanent magnet 43 inside it to rotate through the shaft 42. The shaft 42 rotates under the drive of the connecting shaft 12, thereby driving the first permanent magnet 43 of the first magnetic actuator 4 to rotate on its own.

[0055] Meanwhile, the shaft 42 of the second magnetic actuator 6 is connected to the first gear 7. The first housing 41 and the second housing 44 of the second magnetic actuator 6 are connected together and fixedly connected to the rotating frame 5. The second magnetic actuator 6 does not rotate on its own axis, but only drives the first permanent magnet 43 inside it to rotate through the shaft 42. The shaft 42 rotates with the first gear 7, thereby driving the first permanent magnet 43 of the second magnetic actuator 6 to rotate on its own axis.

[0056] Working process: The drive unit drives the main shaft 1 to rotate, the main shaft 1 drives the rotating frame 5 and the first transmission wheel 9 to rotate synchronously, the rotating frame 5 drives each second magnetic actuator 6 to revolve around the main shaft 1, and at the same time, through the cooperation of the first gear 7 and the gear ring 8, the shaft 42 of each second magnetic actuator 6 is driven to rotate. The first transmission wheel 9 drives the second transmission wheel 11 to rotate, the second transmission wheel 11 drives the connecting shaft 12 connected to it to rotate, and the remaining connecting shafts 12 rotate synchronously under the drive of the third transmission wheel 13 and the second transmission belt 14. Each connecting shaft 12 drives the shaft 42 of each first magnetic actuator 4 to rotate synchronously.

[0057] When the second magnetic actuator 6 revolves to face the first magnetic actuator 4, the shaft 42 drives the first permanent magnet 43 to rotate, causing the ends (working ends) of the two magnetic actuators to have magnetic force (same magnetic pole), thus creating a repulsive force between them. Under the action of the repulsive force, the two magnetic actuators are pushed apart, which increases the output torque of the spindle 1. When the second magnetic actuator 6 revolves to be apart from the first magnetic actuator 4, its working end is non-magnetic and faces the magnetic plate. In this embodiment, both the first magnetic actuator 4 and the second magnetic actuator 6 rotate 180° to switch the magnetic opening and closing of their working ends.

[0058] Example 2:

[0059] The difference between this embodiment and Embodiment 1 lies in the arrangement of the magnetic conductive sheet, specifically: like Figure 12 and Figure 13 As shown, the rotating frame 5 is provided with a plurality of support plates 18 evenly distributed along its circumference. The number of support plates 18 is equal to that of the second magnetic actuator 6, and only one support plate 18 is provided between two adjacent second magnetic actuator 6. The bottom end of the support plate 18 is fixedly connected to the rotating frame 5, and the top end extends close to the first magnetic actuator 4.

[0060] A first magnetic guide plate 19 is provided on the support plate 18. When the second magnetic actuator 6 rotates to a position where it is misaligned with the first magnetic actuator 4, the first magnetic guide plate 19 remains opposite to the first magnetic actuator 4. The first magnetic guide plate 19 is located at the top of the support plate 18 and has an arc-shaped plate structure, which is concentric with the rotating frame 5. The two ends of the first magnetic guide plate 19 are tightly attached to the second magnetic actuators 6 on both sides to fill the gap between two adjacent second magnetic actuators 6, ensuring that the first magnetic guide plate 19 is opposite to the first magnetic actuator 4 when the first magnetic actuator 4 and the second magnetic actuator 6 are misaligned.

[0061] Meanwhile, a rotating support plate 20, which can rotate relative to the main shaft 1, is sleeved on the main shaft 1. The rotating support plate 20 is provided with a number of second magnetic conductive plates 21 equal to the number of the second magnetic actuation units 6. Several second magnetic conductive plates 21 are disposed on the outer edge of the rotating support plate 20 and evenly distributed around the circumference of the rotating support plate 20. The second magnetic conductive plates 21 have the same arcuate plate structure as the first magnetic conductive plates 19, and their width is the same as that of the first magnetic conductive plates 19.

[0062] When the second magnetic actuator 6 rotates to a position where it is offset from the first magnetic actuator 4, the second magnetic plate 21 remains opposite to the second magnetic actuator 6.

[0063] The rotating support plate 20 is connected to the rotating frame 5 through a transmission connection mechanism to achieve synchronous reverse rotation of the rotating support plate 20 relative to the rotating frame 5. The transmission connection mechanism includes a first bevel gear 22, a second bevel gear 23 and a third bevel gear 24.

[0064] The first bevel gear 22 is fitted onto the main shaft 1 and rotates synchronously thereon. The second bevel gear 23 is fitted onto the main shaft 1 opposite to the first bevel gear 22 and can rotate relative to the main shaft 1. The rotating support plate 20 is connected to the second bevel gear 23 and rotates synchronously thereon. A first turntable 25 is rotatably fitted around the first bevel gear 22, and a second turntable 26 is rotatably fitted around the second bevel gear 23. Specifically, the first turntable 25 can rotate relative to the first bevel gear 22, and the second turntable 26 can rotate relative to the second bevel gear 23.

[0065] A rotating connecting seat 27 is provided between the first turntable 25 and the second turntable 26 and is fixedly connected to both. The third bevel gear 24 is rotatably connected to the rotating connecting seat 27, and is perpendicular to the first bevel gear 22 and the second bevel gear 23, and meshes with the first bevel gear 22 and the second bevel gear 23.

[0066] When the main shaft 1 rotates, it will drive the first bevel gear 22 and the rotating frame 5 to rotate. The rotating frame 5 drives the second magnetic actuator 6 and the support plate 18 to rotate synchronously, so that the first magnetic sheet 19 is opposite to the first magnetic actuator 4 when the second magnetic actuator 6 is offset from the first magnetic actuator 4. The rotation of the first bevel gear 22 drives the rotation of the third bevel gear 24, which in turn drives the rotation of the second bevel gear 23. The rotating support plate 20 rotates synchronously with the second bevel gear 23, causing the second magnetic plate 21 to rotate. The rotation direction of the second magnetic plate 21 is opposite to the rotation direction of the second magnetic actuator 6. When the second magnetic actuator 6 is opposite to the first magnetic actuator 4, the second magnetic plate 21 is located between two adjacent second magnetic actuators 6. When the second magnetic actuator 6 is misaligned with the first magnetic actuator 4, the second magnetic plate 21 is opposite to the second magnetic actuator 6.

[0067] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A torque multiplication device, characterized by, The application relates to a main shaft (1) provided with at least one torque increasing mechanism. The torque increasing mechanism comprises a supporting frame (2) and a rotating frame (5) concentrically arranged on the main shaft (1), the supporting frame (2) is fixedly arranged and provided with a plurality of first magnetic force executing units (4) uniformly distributed along the circumference of the main shaft (1), the rotating frame (5) rotates synchronously with the main shaft (1) and is provided with a plurality of second magnetic force executing units (6) uniformly distributed along the circumference of the main shaft (1) and rotating synchronously with the main shaft (1), the rotating frame (5) is configured to periodically move each second magnetic force executing unit (6) to a position radially aligned with one first magnetic force executing unit (4) when the rotating frame (5) rotates with the second magnetic force executing unit (6). The first magnetic force executing unit (4) and the second magnetic force executing unit (6) are configured to change the magnetic force acting between the ends opposite to each other, and the repulsive force between the ends opposite to each other reaches the maximum value when the second magnetic force executing unit (6) is radially aligned with the first magnetic force executing unit (4) along the main shaft (1). The first magnetic force executing unit (4) and the second magnetic force executing unit (6) are structurally identical and each comprises a first part and a second part.

2. A torque multiplication device according to claim 1, characterized in that The first part comprises a first shell (41) provided with a rotatable shaft (42) in the center, the first end of the shaft (42) extends out of the first end face of the first shell (41), and the second end is connected with a first permanent magnet (43); the first permanent magnet (43) is located outside the second end face of the first shell (41) and comprises two symmetrically arranged sub-permanent magnets, and the magnetic poles of the two sub-permanent magnets are opposite along the axial direction. The second part comprises a second shell (44) provided with two symmetrically arranged second permanent magnets (45) in the center, and the magnetic poles of the two second permanent magnets (45) are opposite along the axial direction. When the first part is connected with the second part, the first permanent magnet (43) is located between the two second permanent magnets (45). The main shaft (1) is fixedly provided with a first transmission wheel (9), the first transmission wheel (9) is in transmission connection with a second transmission wheel (11) through a first transmission belt (10), the second transmission wheel (11) is in transmission connection with the shaft (42) of the first magnetic force executing unit (4) to drive the first permanent magnet (43) of the first magnetic force executing unit (4) to rotate.

3. A torque multiplication device according to claim 2, characterized in that When the second magnetic force executing unit (6) rotates with the rotating frame (5), the shaft (42) of the second magnetic force executing unit (6) rotates synchronously to drive the first permanent magnet (43) of the second magnetic force executing unit (6) to rotate. ​ 4. A torque multiplication device according to claim 2, characterized in that The shaft rod (42) end of the second magnetic force execution unit (6) is provided with a first gear (7), and the first gear (7) is engaged with a tooth ring (8) provided on the support frame (2) and having teeth.

5. A torque multiplication device according to claim 3, wherein The number of the first transmission wheel (9) and the second transmission wheel (11) is one; the second transmission wheel (11) is in transmission connection with the shaft rod (42) of one of the first magnetic force execution units (4) through a connecting shaft rod (12); the number of the connecting shaft rod (12) is equal to that of the first magnetic force execution unit (4), and the connecting shaft rod (12) is in transmission connection with the first magnetic force execution unit (4) one by one; a third transmission wheel (13) is sleeved on each connecting shaft rod (12), and all the third transmission wheels (13) are connected through a second transmission belt (14) to realize synchronous rotation.

6. A torque multiplication device according to claim 5, characterized in that The shaft rod (42) end of the first magnetic force execution unit (4) is provided with a second gear (15), and a third gear (16) engaged with the second gear (15) is sleeved on the connecting shaft rod (12).

7. A torque multiplication device according to claim 1, wherein A plurality of magnetic conductive sheets are arranged on the support frame (2), the magnetic conductive sheets are located between adjacent two first magnetic force execution units (4), and are arranged corresponding to the second magnetic force execution unit (6).

8. A torque multiplication device according to claim 7, characterized in that A plurality of magnetic conductive sheets are arranged on the rotating frame (5), the magnetic conductive sheets are located between adjacent two second magnetic force execution units (6), and are arranged corresponding to the first magnetic force execution unit (4).

9. A torque multiplication device according to claim 1, wherein A plurality of support plates (18) uniformly distributed along the circumference of the rotating frame (5) are arranged on the rotating frame (5), the number of the support plates (18) is equal to that of the second magnetic force execution units (6), and only one support plate (18) is arranged between adjacent two second magnetic force execution units (6); a first magnetic conductive sheet (19) is arranged on the support plate (18), and when the second magnetic force execution unit (6) is rotated to be staggered with the first magnetic force execution unit (4), the first magnetic conductive sheet (19) is always opposite to the first magnetic force execution unit (4); A rotatable rotating support plate (20) is sleeved on the main shaft (1), a second magnetic conductive sheet (21) equal in number to the second magnetic force execution units (6) is arranged on the rotating support plate (20), and when the second magnetic force execution unit (6) is rotated to be staggered with the first magnetic force execution unit (4), the second magnetic conductive sheet (21) is always opposite to the second magnetic force execution unit (6).

10. A torque multiplication device according to claim 9, characterized in that The rotating support plate (20) is in transmission connection with the rotating frame (5) through a transmission connection mechanism, so as to realize synchronous reverse rotation of the rotating support plate (20) relative to the rotating frame (5). The transmission connection mechanism comprises a first bevel gear (22), a second bevel gear (23) and a third bevel gear (24); the first bevel gear (22) is sleeved on the main shaft (1) and rotates synchronously; the second bevel gear (23) is oppositely sleeved on the main shaft (1) relative to the first bevel gear (22) and can rotate relative to the main shaft (1); the rotating support plate (20) is connected with the second bevel gear (23) and rotates synchronously; the first bevel gear (22) is externally rotatably sleeved with a first rotating disc (25), the second bevel gear (23) is externally rotatably sleeved with a second rotating disc (26), and a rotating connecting seat (27) connected with the first rotating disc (25) and the second rotating disc (26) is arranged between the first rotating disc (25) and the second rotating disc (26); the third bevel gear (24) is rotatably connected on the rotating connecting seat (27), is perpendicular to the first bevel gear (22) and the second bevel gear (23), and is engaged with the first bevel gear (22) and the second bevel gear (23).

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