Rotary drive device

Abstract

The present disclosure provides a rotary driving device, which comprises a shell, a magnet assembly, a conductor and a motion assembly; the magnet assembly is located in and connected with the shell, and an inside of the magnet assembly forms a magnetic field; the conductor comprises a first part and a second part connected with each other, the first part is located in the magnetic field and movably connected with the shell, two ends of the first part are electrically connected with a positive electrode and a negative electrode of a power supply respectively, a current direction in the conductor is perpendicular to a magnetic field direction of the magnetic field, and the second part is located outside the shell and used for being connected with a blade; the motion assembly is located in the shell and comprises a connecting component and a driving component, the connecting component is partially located in the magnetic field and connected with the conductor. The present disclosure can improve driving efficiency of the rotary driving device.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of power rotary drive, and particularly relates to a rotary drive device. BACKGROUND

[0002] In the mechanical field, a rotary drive device is often needed to rotate a driven object (such as a blade, a drive shaft, etc.) so that the driven object can work normally after being rotated. For example, a blade is rotated to generate a thrust to drive a ship to sail.

[0003] In the related art, when a blade is rotated to generate a thrust to drive a ship to sail, a rotary drive device is generally used to drive the blade to rotate. The rotary drive device includes a hydraulic motor, a sprocket assembly, and a blade. The sprocket assembly is connected to the hydraulic motor and the blade respectively. The hydraulic motor is driven to rotate by oil, and the rotated hydraulic motor drives the blade to rotate through the sprocket assembly. The blade generates a thrust to drive the ship to sail after being rotated.

[0004] However, during the test or sailing process, the rotary drive device needs to work uninterruptedly for 24 hours. At this time, the hydraulic motor is prone to overload work. When the hydraulic motor is overloaded, the rotation speed of the hydraulic motor will decrease or even be zero due to the high internal temperature, which reduces the energy conversion efficiency of the hydraulic motor, causes energy loss, and thus reduces the working efficiency of the rotary drive device. Moreover, when the hydraulic motor is in a long-time working state, a large noise will be generated, which will cause damage to the hearing of the on-site construction personnel over a long period of time. SUMMARY

[0005] The present disclosure provides a rotary drive device, which can avoid the problem of energy loss caused by the overload work of the hydraulic motor, thereby improving the working efficiency of the rotary drive device. The technical solution is as follows:

[0006] The present disclosure provides a rotary drive device, which includes a shell, a magnet assembly, a conductor, and a movement assembly. The magnet assembly is located in the shell and connected to the shell, and a magnetic field is formed in the interior of the magnet assembly. The conductor includes a first part and a second part connected to each other. The first part is located in the magnetic field and movably connected to the shell. The two ends of the first part are electrically connected to the positive electrode and the negative electrode of a power supply respectively. The direction of the current in the conductor is perpendicular to the direction of the magnetic field of the magnetic field. The second part is located outside the shell and used to be connected to a driven object. The movement assembly is located in the shell and includes a connecting component and a driving component. The connecting component is partially located in the magnetic field, and the connecting component is connected to the conductor. The driving component is used to drive the connecting component to move along the direction of the current in the conductor relative to the conductor, so as to rotate synchronously with the conductor.

[0007] In still another implementation form of the disclosure, the first part of the conductor has a channel inside, the channel has the same direction of extension as the direction of current in the conductor; the connecting component comprises a cable, the cable is partially located in the channel, the cable can move in the channel, and the outer wall of the cable located in the channel is in close contact with the inner wall of the channel.

[0008] In still another implementation form of the disclosure, the driving component comprises a pulley block and a driving structure; the cable is slidably wound in the pulley block, and the driving structure is connected with the pulley block to drive the pulley block to rotate.

[0009] In still another implementation form of the disclosure, the pulley block comprises at least two driving wheels arranged in a line along a direction perpendicular to the direction of the magnetic field, and the cable is sequentially wound outside the driving wheels along the arrangement direction of the at least two driving wheels.

[0010] In still another implementation form of the disclosure, the motion assembly further comprises a connecting piece and a wire support, the connecting piece is connected with the top of the wire support respectively, the at least two driving wheels are located in the wire support and are rotatably connected with the wire support respectively, the wire support has wire holes on opposite sides respectively, and the cable is located in the two wire holes.

[0011] In still another implementation form of the disclosure, the first part of the conductor comprises two connectors and an intermediate connecting rod, the two connectors are located at and connected with the two ends of the intermediate connecting rod respectively, the two connectors are electrically connected with the positive and negative poles of the power supply respectively, and the channel is located in the intermediate connecting rod.

[0012] In still another implementation form of the disclosure, the connector is a U-shaped head, and the U-shaped head has a U-shaped cavity for accommodating an electric wire.

[0013] In still another implementation form of the disclosure, the conductor further comprises two elastic clamps, the two elastic clamps are located in the outer walls of the intermediate connecting rod near the two ends of the intermediate connecting rod respectively and are located in the channel, each of the two elastic clamps comprises two elastic pieces, the two elastic pieces in each of the two elastic clamps are oppositely arranged and form a V-shaped opening, and the opening size of the V-shaped opening gradually decreases along the moving direction of the cable.

[0014] In still another implementation of the present disclosure, the magnet assembly comprises a first permanent magnet, a second permanent magnet and a protective shell; the first permanent magnet and the second permanent magnet are embedded in and connected with the protective shell, and the N pole of the first permanent magnet and the S pole of the second permanent magnet are oppositely and spacedly arranged; and the protective shell is connected with the shell.

[0015] In still another implementation of the present disclosure, the protective shell comprises a first hemispherical shell and a second hemispherical shell, which are oppositely and spacedly arranged, and the conductor is movably located between the first hemispherical shell and the second hemispherical shell.

[0016] The technical scheme provided by the embodiments of the present disclosure has the following beneficial effects:

[0017] Since the magnet assembly forms a magnetic field inside, and the first part of the conductor is located in the magnetic field, the two ends of the first part of the conductor are connected with the positive pole of the power supply and the electric connection respectively, so that the conductor can be powered by the power supply to pass current inside. Since the direction of the current in the conductor is perpendicular to the direction of the magnetic field, the conductor can be subjected to an Ampere force perpendicular to the direction of the current in the conductor and the direction of the magnetic field to drive the conductor to move.

[0018] Since the rotating driving device further comprises a movement assembly, the movement assembly comprises a connecting component and a driving component, the connecting component is connected with the conductor, and the driving component is used to drive the connecting component to move along the direction of the current in the conductor relative to the conductor to rotate synchronously with the conductor. In this way, when the conductor is subjected to the Ampere force, since the connecting component is connected with the conductor, the Ampere force of the conductor will also drive the connecting component to move. Since the connecting component can move along the direction of the current in the conductor relative to the conductor under the driving of the driving component, when the connecting component moves relative to the conductor, the Ampere force of the conductor will also drive the connecting component to move, so that the connecting component moves under the joint action of the Ampere force and the driving component. Since the Ampere force is perpendicular to the moving direction of the connecting component relative to the conductor, the Ampere force becomes a centripetal force to drive the connecting component to rotate, thereby driving the conductor to rotate. When the conductor rotates, the blade can be driven to rotate.

[0019] As can be seen, in the above rotating driving device, when the conductor is powered on, only by driving the connecting component to move relative to the conductor through the driving component, the conductor and the connecting component can be driven to rotate together, and finally the rotation of the conductor drives the blade to rotate, avoiding the use of a hydraulic motor to drive the blade to rotate and causing damage and energy consumption, greatly improving the driving efficiency. At the same time, the use of the electromagnetic device can also reduce noise and avoid harm to workers caused by noise. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained based on these drawings without creative labor.

[0021] Figure 1 is a structural schematic diagram of a rotary driving device provided by the embodiments of the present disclosure;

[0022] Figure 2 is Figure 1 a force analysis diagram of a conductor and a connecting component in the embodiment;

[0023] Figure 3 is Figure 1 a top view of a conductor motion trajectory in the embodiment;

[0024] Figure 4 is Figure 2 a force analysis diagram of a cable in the embodiment;

[0025] Figure 5 is Figure 1 a structural schematic diagram of a motion assembly in the embodiment;

[0026] Figure 6 is Figure 1 a structural schematic diagram of a conductor in the embodiment;

[0027] Figure 7 is Figure 1 a structural schematic diagram of a magnetic force assembly in the embodiment.

[0028] The meanings of the symbols in the drawings are as follows:

[0029] 1, shell; 11, half shell;

[0030] 2, magnet assembly; 21, first permanent magnet; 22, second permanent magnet; 23, protective shell; 231, first shell; 232, second shell;

[0031] 3, conductor; 300, channel; 31, joint; 32, intermediate connecting rod; 33, elastic clamp; 331, elastic sheet; 35, connecting shaft;

[0032] 4, motion assembly; 41, connecting component; 411, cable; 42, driving component; 421, pulley set; 4211, driving wheel; 422, driving structure; 43, connecting piece; 44, wire support; 440, wire hole;

[0033] 100, blade. DETAILED DESCRIPTION

[0034] For the purpose of making the object, technical solutions and advantages of the present disclosure clearer, the present disclosure embodiments will be further described in detail below with reference to the drawings.

[0035] The present disclosure embodiments provide a rotary driving device, which comprises a shell 1, a magnet assembly 2, a conductor 3 and a movement assembly 4. Figure 1 As shown, the rotary driving device comprises the shell 1, the magnet assembly 2, the conductor 3 and the movement assembly 4.

[0036] The magnet assembly 2 is located in the shell 1 and connected with the shell 1, and a magnetic field is formed in the magnet assembly 2. The conductor 3 comprises a first part and a second part connected with each other, the first part is located in the magnetic field and movably connected with the shell 1, two ends of the first part are connected with a positive pole and a negative pole of a power supply respectively, a current direction in the conductor 3 is perpendicular to a magnetic field direction of the magnetic field, and the second part (not shown in the figure) is located outside the shell 1 and used for being connected with a blade.

[0037] The movement assembly 4 is located in the shell 1 and comprises a connecting part 41 and a driving part 42, the connecting part 41 is partially located in the magnetic field and slidably connected with the conductor 3. The driving part 42 is used for driving the connecting part 41 to move along the current direction in the conductor 3 relative to the conductor 3, so as to rotate synchronously with the conductor 3.

[0038] When the rotary driving device provided by the present disclosure embodiments is used to drive the blade, since the rotary driving device comprises the shell 1 and the like, the shell 1 can provide a mounting basis for the magnet assembly 2, the conductor 3 and the movement assembly 4 and the like, and at the same time, the magnet assembly 2, the conductor 3 and the movement assembly 4 and the like are protected, so as to prolong the service life of the rotary driving device.

[0039] Moreover, since the magnet assembly 2 forms the magnetic field inside, and the first part of the conductor 3 is located in the magnetic field, and two ends of the first part of the conductor 3 are electrically connected with the positive pole and the negative pole of the power supply respectively, the power supply can provide power for the conductor 3, so as to make the conductor 3 pass through the current inside. Since the current direction in the conductor 3 is perpendicular to the magnetic field direction of the magnetic field where the conductor 3 is located, the conductor 3 can be driven to move by the Ampere force which is perpendicular to both the current direction in the conductor 3 and the magnetic field direction of the magnetic field where the conductor 3 is located.

[0040] Since the rotating driving device further comprises a moving assembly 4, the moving assembly 4 comprises a connecting part 41 and a driving part 42, the connecting part 41 is connected with the conductor 3, and the driving part 42 is used to drive the connecting part 41 to move along the current direction in the conductor 3 relative to the conductor 3 to rotate synchronously with the conductor 3. In this way, when the conductor 3 is subjected to the ampere force, since the connecting part 41 is connected with the conductor 3, the ampere force of the conductor 3 will also drive the connecting part 41 to move. Since the connecting part 41 can move along the current direction in the conductor 3 relative to the conductor 3 under the driving of the driving part 42, when the connecting part 41 moves relative to the conductor 3, the ampere force of the conductor 3 will also drive the connecting part 41 to move, so that the connecting part 41 moves under the joint action of the ampere force and the driving part 42. Since the ampere force is perpendicular to the moving direction of the connecting part 41 relative to the conductor 3, the ampere force will become a centripetal force, which drives the connecting part 41 to rotate, thereby driving the conductor 3 to rotate. After the conductor 3 rotates, the blade can be driven to rotate.

[0041] It can be seen that in the above rotating driving device, when the conductor 3 is in the energized state, only by driving the connecting part 41 to move relative to the conductor 3 by the driving part 42, the conductor 3 can be driven to rotate together with the connecting part 41, and finally the conductor 3 is driven to rotate to drive the blade to rotate, thereby avoiding the damage of energy consumption caused by driving the blade by the hydraulic motor, and greatly improving the driving efficiency. At the same time, the electromagnetic device is also used, which can reduce the noise and avoid the harm of the noise to the workers.

[0042] For example, in combination with Figure 1 , the magnetic field direction of the magnetic field where the conductor 3 is located is vertically downward, and the current direction in the conductor 3 is horizontally rightward, so that the conductor 3 will be subjected to the ampere force which is perpendicular to the paper surface and inward.

[0043] Figure 2 is Figure 1 the force analysis diagram of the conductor and the connecting part in Figure 2 , since the connecting part 41 is connected with the conductor 3, the connecting part 41 will also be subjected to the ampere force F 安 ( Figure 2 in the Z-axis direction) which is perpendicular to the paper surface and inward. And since the connecting part 41 can move along the current direction in the conductor 3 Figure 2 (the direction I in the figure) relative to the conductor 3 under the driving of the driving part 42. That is, the ampere force acting on the connecting part 41 is perpendicular to the moving speed of the connecting part 41 Figure 2 (the moving speed V in the figure), and the connecting part 41 rotates circularly inward under the action of the ampere force, thereby driving the conductor 3 to rotate along the axis a Figure 2 in the figure, and the axis direction of the axis a is the same as the magnetic field direction B.

[0044] Figure 3 isFigure 1 The top view of the conductor movement trajectory is shown in FIG. 3. Figure 3 For example, the axis a can be located in the center of the magnetic field. That is, the conductor 3 rotates around the center of the magnetic field, so that the conductor 3 is subjected to the same magnetic field intensity during rotation, thereby ensuring that the trajectory of the conductor 3 is a perfect circle.

[0045] In other examples, the magnetic field direction can be other directions, such as vertically upward, etc. Correspondingly, the current direction in the conductor 3 can also be other directions.

[0046] In combination with Figure 2 Optionally, the first part of the conductor 3 has a channel 300 inside, and the extension direction of the channel 300 is the same as the current direction in the conductor 3.

[0047] The connecting component 41 includes a cable 411, which is partially located in the channel 300 and connected to the conductor 3. The cable 411 can move in the channel 300, and the outer wall of the cable 411 located in the channel 300 is in close contact with the inner wall of the channel 300.

[0048] In the above implementation, the channel 300 is used to provide installation space for the cable 411 and enable the cable 411 to move relative to the conductor 3. Moreover, since the outer wall of the cable 411 located in the channel 300 is in close contact with the inner wall of the channel 300, when the conductor 3 is subjected to the Ampere force, the cable 411 is also subjected to the Ampere force. In this way, when the cable 411 moves linearly relative to the conductor 3, the cable 411 gradually changes from linear motion to circular motion under the action of the Ampere force. After the cable 411 rotates, the cable 411 will rotate together with the conductor 3.

[0049] Figure 4 is Figure 2 The force analysis diagram of the cable is shown in FIG. 4, in combination with Figure 4 The center of the cable 411 located in the channel 300 is taken as the center of mass for force analysis. The driving force of the driving component 42 for driving the cable 411 to move relative to the conductor 3 is F 驱 The supporting force of the cable 411 located in the channel 300 by the conductor 3 is F N The weight of the cable 411 is G. The friction force of the cable 411 moving in the channel 300 is F f The Ampere force of the cable 411 during movement is F 安

[0050] In combination with Figure 4 In the vertical direction, the cable is in force balance, that is, the gravity G and the supporting force F N are the same in size and opposite in direction. The cable 411 needs to move at a constant speed to the right, and in the horizontal direction, the driving force F 驱 and the friction force F f ​The same size, opposite direction. So, the cable 411 only receives an Ampere force F along the Z-axis direction 安 . In this way, the cable 411 can make a circular motion in the XOZ plane under the action of the Ampere force F 安 while moving at a constant speed along the X-axis direction. Correspondingly, the conductor 3 located in the magnetic field will rotate in the magnetic field with the center of the magnetic field.

[0051] Figure 5 is a structural schematic view of the motion assembly in Figure 1 , combined with Figure 5 , the driving component 42 comprises a pulley set 421 and a driving structure 422. The cable 411 is slidably wound in the pulley set 421. The driving structure 422 is connected with the pulley set 421 and used to drive the pulley set 421 to rotate.

[0052] In the above implementation manner, the pulley set 421 is used to drive the cable 411 to move so that the cable 411 can move in the channel 300. The driving structure 422 is used to drive the pulley set 421 to rotate so that the pulley set 421 can rotate.

[0053] That is to say, after the cable 411 is wound in the pulley set 421, the pulley set 421 rotates under the driving of the driving structure 422, and the cable 411 wound on the pulley set 421 will move synchronously with the pulley set 421 under the action of static friction, so that the cable 411 can continuously move relative to the conductor 3.

[0054] Optionally, the pulley set 421 comprises at least two driving wheels 4211 arranged in a column along a direction perpendicular to the direction of the magnetic field. The cable 411 is wound on the driving wheels 4211 in turn along the arrangement direction of the at least two driving wheels 4211 and is opposite to the driving wheels 4211.

[0055] In the above implementation manner, the arrangement of the at least two driving wheels 4211 can make the direction of the cable entering the pulley set 421 and the direction of the cable leaving the pulley set 421 exactly the same when the cable is wound in the pulley set 421, so that the cable 411 can form a closed loop after being connected with the conductor 3, and the cable 411 can continuously move under the driving of the driving wheels 4211, and the convenience of arranging the cable 411 in the conductor 3 is improved.

[0056] Optionally, the motion assembly 4 further comprises a connecting piece 43 and a wire support 44. The connecting piece 43 is connected with the top of the wire support 44 respectively, the at least two driving wheels 4211 are located in the wire support 44 and are rotatably connected with the wire support 44 respectively, the wire support 44 has wire holes 440 on opposite sides respectively, and the cable 411 is located in the two wire holes 440.

[0057] In the above implementation, the connecting member 43 is used to connect the wire holder 44 with the housing 1, so that the wire holder 44 can be connected in the housing 1 to facilitate the connection of the cable 411 with the conductor 3.

[0058] The wire holder 44 is used to arrange the driving wheel 4211, so that the driving wheel 4211 can be arranged in the housing 1 in a row to guide and drive the cable 411. The wire hole 440 arranged in the wire holder 44 can make the cable 411 smoothly enter the wire holder 44, and ensure that the cable 411 does not knot, etc.

[0059] For example, the connecting member 43 can be any one of a connecting rope, a rod, etc.

[0060] In the embodiment of the present disclosure, since the conductor 3 needs to rotate, in order to avoid the cable 411 from being wound when the conductor 3 rotates, the connecting member 43 and the wire holder 44 can be controlled to rotate synchronously with the conductor 3, so that the cable 411 in the conductor 3 can always move along the current direction in the conductor 3 relative to the conductor 3. For example, the connecting member 43 can be connected with one end of a rotating arm, and the other end of the rotating arm is connected with a driving motor. The other end of the rotating arm is concentric with the rotation center of the conductor 3. The length direction of the rotating arm is perpendicular to the magnetic field direction. When the driving motor is started, the driving motor drives the rotating arm to rotate, and the rotating arm drives the connecting member 43 to rotate synchronously with the conductor 3.

[0061] Figure 6 is Figure 1 The structure diagram of the conductor in the middle, combined with Figure 6 Optionally, the first part of the conductor 3 includes two joints 31 and an intermediate connecting rod 32. The two joints 31 are respectively located at and connected with two ends of the intermediate connecting rod 32. The two joints 31 are respectively electrically connected with the positive and negative poles of the power supply. The channel 300 is arranged in the intermediate connecting rod 32.

[0062] In the above implementation, the joint 31 is used to electrically connect the conductor 3 with the power supply, so that when the power supply supplies power, an electric current is generated in the conductor 3, and the current direction in the conductor 3 is from one of the two joints 31 to the other joint 31. The channel 300 arranged in the intermediate connecting rod 32 can accommodate the cable 411, so that the cable 411 can enter the intermediate connecting rod 32 and move linearly relative to the conductor 3.

[0063] For example, as Figure 2As shown, since the cable 411 can move relative to the conductor 3, when the conductor 3 is passed through the current, the conductor 3 will be moved under the action of the magnetic field. Since the cable 411 is in contact with the inner wall of the conductor 3, the cable 411 will also be subjected to the Ampere force. The cable 411 in the conductor 3 has a movement speed relative to the conductor 3 along the same direction of the current, that is, the direction of the Ampere force of the cable 411 is perpendicular to the direction of the movement speed of the cable 411, so that the Ampere force received by the cable 411 becomes a centripetal force, and the cable 411 will rotate. After the cable 411 rotates, it will drive the conductor 3 to rotate, so as to make the rotary drive device output power.

[0064] Referring again to Figure 6 Optionally, the joint 31 is a U-shaped head, and the U-shaped head has a U-shaped cavity for accommodating the wire.

[0065] In the above implementation manner, the joint 31 is arranged as a U-shaped head, so that the electric wire can be clamped in the U-shaped cavity in the U-shaped head, and the electric wire can be firmly connected to the joint 31, and then the current can flow into the conductor 3.

[0066] Optionally, the conductor 3 further comprises two elastic clamps 33, which are respectively arranged in the outer walls of the intermediate connecting rods 32 close to the two ends and are located in the channel 300. Each of the two elastic clamps 33 comprises two elastic sheets 331, and the two elastic sheets 331 in each of the two elastic clamps 33 are oppositely arranged and form a V-shaped opening, and the opening size of the V-shaped opening gradually decreases along the movement direction of the cable 411.

[0067] In the above implementation manner, the elastic clamps 33 can be arranged to clamp and fix the cable 411, so that the cable 411 will not move randomly.

[0068] Moreover, the elastic clamps 33 are arranged in the form of two elastic sheets 331, the V-shaped opening can be formed by the two elastic sheets 331, so that the cable 411 can only move along the larger opening end of the V-shaped opening to the smaller opening end, and will not move reversely, so that the cable 411 will not move randomly.

[0069] In the embodiment of the present disclosure, since the conductor 3 rotates, in order to prevent the conductor 3 from being interfered by the power supply during rotation, the power supply can be controlled to rotate synchronously with the conductor 3, or the power supply can be directly integrated in the conductor 3.

[0070] Exemplarily, the channel 300 is a long strip-shaped hole. The inner diameter of the channel 300 is slightly larger than the outer diameter of the cable 411 located in the channel 300. The channel 300 is in clearance fit with the cable 411.

[0071] Continuing to refer to Figure 3The second part of the conductor 3 comprises a connecting shaft 35 which is located in the radial direction of the circumference where the intermediate connecting rod 32 rotates. One end of the connecting shaft 35 is connected with one of the two joints 31 in the conductor 3, and the other end of the connecting shaft 35 is connected with the blade 100. The blade 100 is located in the rotation center of the intermediate connecting rod 32. When the intermediate connecting rod 32 rotates, the connecting shaft 35 rotates with it, and the blade 100 on the other end of the connecting shaft 35 rotates with the rotation center of the conductor 3.

[0072] Figure 7 is Figure 1 The structural schematic diagram of the magnetic force assembly, in combination with Figure 7 Optionally, the magnet assembly 2 comprises a first permanent magnet 21, a second permanent magnet 22 and a protective shell 23. The first permanent magnet 21 and the second permanent magnet 22 are both embedded in the protective shell 23 and connected with the protective shell 23, and the N pole of the first permanent magnet 21 and the S pole of the second permanent magnet 22 are spaced and oppositely arranged. The protective shell 23 is connected with the outer shell 1, and the middle part of the protective shell 23 is movably connected with the conductor 3.

[0073] In the above implementation manner, the magnet assembly 2 is arranged in the structural form of the first permanent magnet 21, the second permanent magnet 22 and the protective shell 23, so that the protective shell 23 can provide a mounting basis for the first permanent magnet 21 and the second permanent magnet 22, so that the first permanent magnet 21 and the second permanent magnet 22 can be located in the outer shell 1. The arrangement of the first permanent magnet 21 and the second permanent magnet 22 can form a constant magnetic field to provide a prerequisite for the movement of the conductor 3.

[0074] Optionally, the protective shell 23 comprises a first shell 231 and a second shell 232, and the first shell 231 and the second shell 232 are oppositely and spacedly arranged.

[0075] The conductor 3 is located between the first shell 231 and the second shell 232 and is in contact with the first shell 231 and the second shell 232, respectively.

[0076] In the above implementation manner, the protective shell 23 is arranged in the form of two half shells of the first shell 231 and the second shell 232, so that the first shell 231 and the second shell 232 are spacedly arranged to form a space for clamping the conductor 3 between the first shell 231 and the second shell 232, so as to provide a space for the movement of the conductor 3.

[0077] That is, the first shell 231 and the second shell 232 are spacedly arranged, which not only provides a mounting basis for the first permanent magnet 21 and the second permanent magnet 22, but also facilitates the placement of the conductor 3 without interfering with the movement of the conductor 3.

[0078] Optionally, the first shell 231 and the second shell 232 are of the same structure. The first shell 231 and the second shell 232 are both hemispherical shells. Correspondingly, the first permanent magnet 21 and the second permanent magnet 22 are also spherical cap-shaped permanent magnets.

[0079] The first permanent magnet 21 is embedded in the first shell 231, and the N-pole of the first permanent magnet 21 is the top surface of the spherical cap. The S-pole of the first permanent magnet 21 is the bottom surface of the spherical cap. The S-pole of the first permanent magnet 21 is connected with the first shell 231 by means of glue or the like.

[0080] The second permanent magnet 22 is embedded in the second shell 232, and the S-pole of the second permanent magnet 22 is the top surface of the spherical cap. The N-pole of the second permanent magnet 22 is the bottom surface of the spherical cap. The N-pole of the second permanent magnet 22 is connected with the second shell 232 by means of glue.

[0081] In this way, through the hemispherical form, on the one hand, the occupied space of the magnet assembly 2 is saved, and on the other hand, the first shell 231 and the second shell 232 respectively provide a circular rotation plane for the conductor 3, so that the conductor 3 can rotate on the circular half-section between the first shell 231 and the second shell 232 to limit the conductor 3.

[0082] Optionally, the shell 1 includes two half-shells 11, the two half-shells 11 are arranged in a spaced manner, and the conductor 3 is located between the two half-shells 11 and respectively contacts the two half-shells 11. In use, the two half-shells 11 can be fixed in the corresponding place by means of screws or other fasteners.

[0083] The working process of the rotary driving device provided by the embodiment of the present disclosure will be briefly introduced as follows:

[0084] In combination with Figure 2 When the power supplies electricity to the conductor 3 (the current direction of the conductor 3 is the positive direction of the X-axis), the conductor 3 generates an Ampere force (the direction of the Ampere force is the positive direction of the Z-axis) under the action of the magnetic field (the direction of the magnetic field is the negative direction of the Y-axis) B between the first permanent magnet 21 and the second permanent magnet 22, and the Ampere force is perpendicular to the magnetic field direction and the current direction. When the current in the conductor 3 is continuous, the size of the Ampere force of the conductor 3 remains stable.

[0085] When the driving component 42 drives the cable 411, the cable 411 located in the channel 300 can continuously move relative to the conductor 3 at a constant speed V (the direction of the speed V is the positive direction of the X-axis). The speed V and the Ampere force F 安Therefore, when the cable 411 moves at a speed V, the Ampere force will continuously pull the cable 411 to deflect inward, so that the cable 411 rotates in the XOZ plane (the rotation axis of the cable 411 is parallel to the Y axis), the cable 411 performs a circular motion, thereby driving the conductor 3 to perform a circular motion, and finally outputting the electromagnetic force through the conductor 3 to drive the blade 100 to rotate, reduce power loss and improve work efficiency.

[0086] The above only describes optional embodiments of the present disclosure and is not intended to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A rotary drive device, characterized in that, The rotary drive device includes a housing (1), a magnet assembly (2), a conductor (3), and a motion assembly (4). The magnet assembly (2) is located inside the outer shell (1) and connected to the outer shell (1), and a magnetic field is formed inside the magnet assembly (2); The conductor (3) includes a first part and a second part connected together. The first part is located in the magnetic field and is movably connected to the outer shell (1). The two ends of the first part are electrically connected to the positive and negative terminals of the power supply, respectively. The direction of the current in the conductor (3) is perpendicular to the direction of the magnetic field. The second part is located outside the outer shell (1) and is used to connect to the driving object. The motion component (4) is located inside the housing (1) and includes a connecting component (41) and a driving component (42). The connecting component (41) is partially located in the magnetic field and is connected to the conductor (3). The connecting component (41) includes a cable (411). The driving component (42) includes a pulley system (421) and a driving structure (422). The pulley system (421) includes at least two driving wheels (4211). The cables (411) are arranged in a row along a direction perpendicular to the magnetic field direction. The cables (411) are wound around the drive wheels (4211) in sequence along the arrangement direction of the at least two drive wheels (4211). The drive structure (422) is connected to the drive wheels (4211) and is used to drive the drive wheels (4211) to rotate, so that the cables (411) move relative to the conductor (3) along the current direction in the conductor (3) to rotate synchronously with the conductor (3).

2. The rotary drive device according to claim 1, characterized in that, The first part of the conductor (3) has a channel (300) inside, and the extension direction of the channel (300) is the same as the direction of the current in the conductor (3); The cable (411) is partially located within the channel (300), and the cable (411) is movable within the channel (300). The outer wall of the cable (411) located within the channel (300) is in contact with the inner wall of the channel (300).

3. The rotary drive device according to claim 1, characterized in that, The motion component (4) further includes a connector (43) and a wire support (44). The connector (43) is connected to the top of the wire support (44). The at least two drive wheels (4211) are located inside the wire support (44) and are rotatably connected to the wire support (44). The wire support (44) has wire holes (440) on opposite sides. The cable (411) is located in the two wire holes (440).

4. The rotary drive device according to claim 2, characterized in that, The first part of the conductor (3) includes two connectors (31) and an intermediate connecting rod (32). The two connectors (31) are located at both ends of the intermediate connecting rod (32) and are connected to both ends of the intermediate connecting rod (32) respectively. The two connectors (31) are electrically connected to the positive and negative terminals of the power supply respectively. The channel (300) is located within the intermediate link (32).

5. The rotary drive device according to claim 4, characterized in that, The connector (31) is a U-shaped head, which has a U-shaped cavity for accommodating electrical wires.

6. The rotary drive device according to claim 4, characterized in that, The conductor (3) also includes two elastic clips (33), which are located in the outer walls of the intermediate connecting rod (32) near its two ends, and are both located in the channel (300); Each of the two elastic clips (33) includes two spring pieces (331), the two spring pieces (331) in each elastic clip (33) are arranged opposite to each other and form a V-shaped opening, the size of the V-shaped opening gradually decreases along the moving direction of the cable (411).

7. The rotary drive device according to any one of claims 1-6, characterized in that, The magnet assembly (2) includes a first permanent magnet (21), a second permanent magnet (22), and a protective shell (23). The first permanent magnet (21) and the second permanent magnet (22) are both embedded in the protective shell (23) and are both connected to the protective shell (23). The N pole of the first permanent magnet (21) and the S pole of the second permanent magnet (22) are arranged at intervals relative to each other. The protective shell (23) is connected to the outer shell (1).

8. The rotary drive device according to claim 7, characterized in that, The protective shell (23) includes a hemispherical first shell (231) and a hemispherical second shell (232), the first shell (231) and the second shell (232) being arranged opposite to each other and spaced apart, and the conductor (3) being movably located between the first shell (231) and the second shell (232).

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