Reciprocating motion system based on magnetic shielding and permanent magnet mutual repulsion

Abstract

The present invention discloses a reciprocating motion system based on magnetic shielding and the mutual repulsion of permanent magnets, including a machine base, a magnetic shielding mechanism, a permanent magnet kinetic energy conversion mechanism, a transmission mechanism, a speed regulating mechanism and an energy storage device. The present invention realizes the repeated translation of the mutually repelling permanent magnets on both sides by orderly withdrawing and inserting the magnetic shielding body between two groups of permanent magnet components, thereby driving the operation of the transmission mechanism. The present invention simultaneously utilizes the attraction and repulsion of the permanent magnets. In terms of energy distribution, the kinetic energy obtained by the mutual attraction between the mutually repelling permanent magnets on both sides and the magnetic shielding body can be converted into electrical energy to compensate for the energy consumption of withdrawing the magnetic shielding body. At the same time, the repulsive force between the permanent magnets with the same magnetic poles on both sides when the magnetic shielding body is withdrawn from the two groups of permanent magnet components is used as a power to drive the transmission mechanism to work and output torque externally, thereby realizing the effect of using magnetic energy to do work externally, thereby achieving a good energy-saving effect.

Description

Technical Field

[0001] The invention relates to the field of new energy technology, in particular to a reciprocating motion system based on magnetic shielding and the mutual repulsion of permanent magnets. Background Art

[0002] As an important component of the rapid development of new energy technologies, magnetic energy has received more and more attention; an induction motor is a power device that places a rotor in a rotating magnetic field to obtain torque. With the research on magnetic energy, various technologies that use magnetic energy to convert energy are constantly developing.

[0003] The Chinese invention patent application with publication number CN1151226A discloses an induction generator having a pair of magnetic poles of the same polarity opposed to each other relative to a rotating shaft, the induction generator having a rotating shaft driven by an external device; an even number of stator cores arranged around the rotating shaft, with a predetermined gap arranged between adjacent stator cores; a first unipolar rotor arranged in the rotating shaft, surrounded by an even number of stator cores, and having first and second magnetic poles of the same polarity, the first and second magnetic poles being opposed to each other relative to the rotating shaft in a cross section; a second unipolar rotor arranged in the rotating shaft so as to face the first unipolar rotor at a predetermined distance along the rotating shaft, which is surrounded by an even number of stator cores and has third and fourth magnetic poles of the same polarity opposite to the first and second magnetic poles, the third and fourth magnetic poles being opposed to each other relative to the rotating shaft; and a plurality of windings arranged in the even number of stator cores and connected according to a predetermined arrangement.

[0004] The Chinese invention patent application with publication number CN118554716A discloses a magnetic energy conversion device, including a first electromagnetic unit and a second electromagnetic unit arranged opposite to each other, a permanent magnetic unit is arranged between the first electromagnetic unit and the second electromagnetic unit, and the permanent magnetic unit is connected to an output member. Powering on the first electromagnetic unit or the second electromagnetic unit can generate a repulsive force on the permanent magnetic unit; powering off the first electromagnetic unit or the second electromagnetic unit can generate an attractive force on the permanent magnetic unit. This application does not require continuous power supply, and can realize the conversion of electrical energy into mechanical energy by using the magnetic force between the permanent magnetic unit and the first electromagnetic unit / the second electromagnetic unit, which can make great use of magnetic energy and save a lot of energy.

[0005] The Chinese invention patent application with publication number CN117040189A discloses an electromagnetic energy harvester based on magnetic stretch jump, which at least includes a base, a sleeve, a magnet spring mechanism, a rotor, a ratchet pawl, a gear, and a rack; a sleeve is arranged on one side of the upper surface of the base, and a magnet spring mechanism is arranged on the other side; the magnet spring mechanism stores energy and releases it instantly under the action of mechanical vibration; the rack reciprocates under the action of the magnet spring mechanism, driving the pawl bracket gear to rotate; a rotor is arranged inside the sleeve, and the rotor rotates under the drive of the ratchet bracket gear, interacting with the coil to generate an induced current. The electromagnetic energy harvester can not only effectively capture and convert weak reciprocating vibration energy, but also convert it into high-speed unidirectional rotational motion, thereby further improving the energy collection efficiency of the energy harvester.

[0006] The Chinese invention patent application with publication number CN118264066A discloses a double-connected three-phase permanent magnet motor, including a stator, a stator inner ring, a rotor and a casing. The configured encoding controller outputs several groups of pulsed sinusoidal half-wave direct currents to supply the stator coils respectively, and the characteristic form of three-phase alternating current is comprehensively and orderly formed in the several groups of stator coils. The composite magnetic field formed by the permanent magnets in the stator ring forms a dynamic rotating magnetic field at the air gap, so that the rotor is forced to rotate and output mechanical power; there are two silicon steel laminated sheet rotors on the same axis of the rotor, and several permanent magnets are installed on the rotors. The permanent magnets installed on the surfaces of the two rotors have opposite polarities, and the permanent magnets on each rotor have the same polarity. The magnetic polarity on the two rotors is the same as the corresponding stator magnetic polarity, and the same polarity repels each other and rotates, forming a new rotor combination structure and a new stator combination structure, which can be widely used as a power source for various large and medium-sized equipment.

[0007] The technical solutions disclosed in the above-mentioned patent applications all involve the application and conversion of magnetic energy, but the working principle of the magnetic energy is either that the same poles of magnets repel each other, or that the opposite poles of magnets attract each other. The attraction and repulsion of magnets are not utilized simultaneously. In addition, the magnets are greatly affected by external forces during their action, resulting in a large energy loss, which is not conducive to improving the conversion effect of magnetic energy. There is still room for further improvement in energy-saving effects. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a reciprocating motion system based on magnetic shielding and the mutual repulsion of permanent magnets, which can simultaneously apply the attraction and repulsion of permanent magnets to the energy conversion process, thereby achieving the effect of using magnetic energy to do external work, improving the operating efficiency of the system, and achieving good energy-saving effects.

[0009] In order to solve the above technical problems, the technical solution adopted by the present invention is: a reciprocating motion system based on magnetic shielding and permanent magnet mutual repulsion, including a machine base, a magnetic shielding mechanism, a permanent magnet kinetic energy conversion mechanism, a transmission mechanism, a speed regulating mechanism and an energy storage device, wherein the number of the permanent magnet kinetic energy conversion mechanism and the transmission mechanism are both two groups, and the permanent magnet kinetic energy conversion mechanism and the transmission mechanism correspond one to one;

[0010] The magnetic shielding mechanism includes a magnetic shielding plate, an ascending drive mechanism and a descending drive mechanism. The ascending drive mechanism and the descending drive mechanism are both electrically connected to the energy storage device. The ascending drive mechanism includes an ascending drive motor, an ascending control circuit and an ascending transmission assembly. The descending drive mechanism includes a descending drive motor, a descending control circuit and a descending transmission assembly. The magnetic shielding plate is made of ferromagnetic metal. The magnetic shielding plate is in transmission cooperation with the ascending transmission assembly and the descending transmission assembly. The magnetic shielding plate can perform reciprocating lifting and lowering motion in the vertical direction under the control of the ascending drive mechanism and the descending drive mechanism. The ascending control mechanism and the descending control mechanism are both electrically connected to the speed regulating mechanism. The energy storage device is a battery or a capacitor and related supporting components of a power supply.

[0011] The permanent magnet kinetic energy conversion mechanism comprises a permanent magnet assembly, the permanent magnet assembly comprises permanent magnets, the permanent magnets in the two groups of permanent magnet assemblies are arranged opposite to each other with the same magnetic poles, the permanent magnets in the two groups of permanent magnet assemblies can synchronously perform reciprocating linear motion in the horizontal direction towards each other under the ferromagnetic attraction of the magnetic shielding plate and the mutual repulsion between the permanent magnets in the two groups of permanent magnet assemblies; when the magnetic shielding plate descends to between the two groups of permanent magnet assemblies, the permanent magnets in the two groups of permanent magnet assemblies move toward the magnetic shielding plate under the ferromagnetic action of the magnetic shielding plate, so that the permanent magnets in the two groups of permanent magnet assemblies The permanent magnets of the two permanent magnet assemblies are moved away from the magnetic shielding plate under the action of the mutual repulsion force; the permanent magnet assembly also includes a sleeve, a first electromagnetic coil and a second electromagnetic coil, the sleeves of the two permanent magnet assemblies are coaxially arranged on both sides of the magnetic shielding plate, the sleeves are fixed on the base, the permanent magnets are arranged in the sleeve and slidably cooperate with the inner wall of the sleeve, the first electromagnetic coil and the second electromagnetic coil are respectively wound on both ends of the sleeve, and the first electromagnetic coil and the second electromagnetic coil are electrically connected to the energy storage device;

[0012] The transmission mechanism comprises a straight rod, a connecting rod, a cross rod and two sets of transmission components, the straight rod of the transmission mechanism is fixedly connected to the permanent magnet protection cover of the corresponding permanent magnet kinetic energy conversion mechanism, the end of the straight rod not connected to the permanent magnet protection cover is rotatably connected to the connecting rod, the cross rod is arranged perpendicular to the connecting rod, the end of the connecting rod not connected to the straight rod is rotatably connected to the middle part of the cross rod, and the two ends of the cross rod are respectively connected to the two sets of transmission components;

[0013] The transmission assembly includes a turntable, a rotating shaft and a support plate. The two ends of the cross bar are eccentrically matched with the two turntables in the two groups of transmission assemblies respectively. The rotating shaft is fixedly connected to the center of the corresponding turntable. The rotating shaft is rotationally matched with the support plate. The support plate is fixed on the machine base. The rotating shaft of one group of transmission assemblies is transmission-matched with the external motor.

[0014] The present invention utilizes the attraction and repulsion of the permanent magnets on both sides in the energy conversion process of the system by arranging a magnetic shielding mechanism, a permanent magnet kinetic energy conversion mechanism, a transmission mechanism and an energy storage device: on the one hand, a magnetic shielding plate with high magnetic permeability and high magnetic saturation attracts the permanent magnets on both sides, and the magnetic shielding plate is used to magnetically shield the magnetic lines of force of the permanent magnets of the permanent magnet assembly to reduce the repulsion effect between the permanent magnets on both sides, so as to reduce the kinetic energy loss in the movement of the permanent magnets on both sides, and the same magnetic permanent magnets on both sides that are difficult to approach due to the mutual repulsion are brought closer to the magnetic shielding plate, and the permanent magnets on both sides are used to stimulate the kinetic energy conversion of the permanent magnets in the process of approaching the magnetic shielding plate. The conversion mechanism generates electromagnetic induction, and converts the kinetic energy obtained by the permanent magnets on both sides due to their respective attraction with the magnetic shielding plates into electrical energy to compensate for the energy consumed by withdrawing and inserting the magnetic shielding plates; on the other hand, after the permanent magnets on both sides reach the action position, the magnetic shielding plates are withdrawn from between the two groups of permanent magnet assemblies, and the magnetic line convergence medium magnetic shielding plates of the permanent magnets on both sides are removed, so that the magnetic lines of force of the permanent magnets on both sides are completely opposite to each other, and then the permanent magnets on both sides are moved away from each other by utilizing the repulsion property of the same magnetic poles of the permanent magnets. In the process of moving away from each other, the permanent magnets on both sides drive the transmission mechanism of the present invention to work and output torque externally, thereby realizing the effect of using magnetic energy to do work externally.

[0015] As an improvement of the above scheme: the magnetic shielding plate is composed of a transmission section, a first magnetic shielding section and a second magnetic shielding section connected in sequence; the transmission section forms a transmission match with the ascending drive mechanism and the descending drive mechanism, the thickness of the first magnetic shielding section is greater than the thickness of the second magnetic shielding section, but the thickness of the first magnetic shielding plate cannot exceed the effective range of attraction between the permanent magnets of the two sets of permanent magnet assemblies and the second magnetic shielding section, within which the mutual attraction between the second magnetic shielding section and the permanent magnets on both sides of the two sets of permanent magnet assemblies is greater than the repulsive force between the permanent magnets on both sides of the two sets of permanent magnet assemblies; the first magnetic shielding section is located between the transmission section and the second magnetic shielding section, and there is an arc transition between the first magnetic shielding section and the second magnetic shielding section, the second magnetic shielding section is a section away from the ascending drive mechanism and the descending drive mechanism, and the first magnetic shielding section and the second magnetic shielding section are an integrated structure; the magnetic shielding plate is a combined metal plate composed of multiple silicon steel sheets or multiple Permalloy sheets stacked to reduce the influence of eddy currents generated by the magnetic shielding body on the reciprocating motion of the permanent magnet;.

[0016] The present invention optimizes the structure of the magnetic shielding plate so that the magnetic shielding plate presents a multi-segment structure with different thicknesses in each segment, and extracts the first magnetic shielding segment and the second magnetic shielding segment of the magnetic shielding plate in stages so that the magnetic shielding effect of the magnetic shielding plate on the permanent magnet can adapt to the change in the distance between the permanent magnets on both sides; since the thicker the magnetic shielding plate is, the better the magnetic shielding effect on the permanent magnet is, the magnetic shielding plate first attracts the same-pole permanent magnets of the permanent magnet assemblies on both sides through the thicker first magnetic shielding segment so that the same-pole permanent magnets of the permanent magnet assemblies on both sides are accelerated to approach the first magnetic shielding segment, and when the permanent magnets on both sides are close to the magnetic shielding plate, the magnetic shielding plate is extracted upward to remove the first magnetic shielding segment to make room for the second magnetic shield, which is embodied as the first-stage extraction of the magnetic shielding plate, and the thinner second magnetic shielding segment replaces the first magnetic shielding segment to attract the permanent magnets of the two groups of permanent magnet assemblies so that the permanent magnets on both sides are closer. In view of the fact that the force between the permanent magnets is inversely proportional to the square of the distance between the permanent magnets, the closer the distance between the permanent magnets on both sides is, the greater the mutual repulsion force is. Although the magnetic shielding effect of the second magnetic shielding segment on the permanent magnets on both sides is weakened due to the thinning of the magnetic shielding plate, the attraction between the second magnetic shielding segment and the permanent magnets on both sides is greater than the repulsion between the permanent magnets on both sides. Therefore, the mutual attraction between the second magnetic shielding segment and the permanent magnets on both sides can bring the permanent magnets on both sides closer to each other; when the permanent magnets with the same magnetic poles on both sides reach the set action position, the magnetic shielding plate is pulled upward, which is reflected as the second-level pulling of the magnetic shielding plate. The improvement of the magnetic shielding plate structure ensures that the repulsion force on the permanent magnets on both sides is weakened as much as possible during the process of approaching each other, reduces the loss of kinetic energy obtained by the permanent magnets, so that the kinetic energy obtained by the permanent magnets on both sides is converted into electrical energy more, and at the same time, the permanent magnets on both sides are brought closer to increase the accumulation of magnetic potential energy between the permanent magnets.

[0017] As an improvement of the above scheme: it also includes magnetic shielding covers corresponding to the two groups of permanent magnet assemblies one by one, the two magnetic shielding covers are respectively fixed on both sides of the magnetic shielding plate along the three edges of the magnetic shielding plate and have openings opposite to the corresponding two groups of permanent magnet assemblies, two groups of permanent magnet assemblies with opposite magnetic poles are horizontally arranged on both sides of the magnetic shielding plate in the vertical direction inside the magnetic shielding cover, when the magnetic shielding plate has not risen to a position away from the two groups of permanent magnet assemblies, the permanent magnets of the two groups of permanent magnet assemblies are within the magnetic shielding range of the corresponding magnetic shielding covers and the magnetic shielding plates; the surface of the magnetic shielding covers is an arc surface, and a plurality of ventilation holes are provided on the arc surface of the magnetic shielding covers; the magnetic shielding covers and the magnetic shielding plates are an integral structure.

[0018] The present invention further enhances the magnetic shielding effect of the permanent magnet components on both sides by arranging a magnetic shielding cover on the magnetic shield plate, and can more effectively perform magnetic shielding on the permanent magnets in the process of the magnetic shielding plate and the permanent magnets on both sides attracting each other and approaching each other.

[0019] As an improvement of the above scheme: the permanent magnet assembly also includes a protective cover wrapped around the periphery of the permanent magnet, and the material of the protective cover is resin or carbon fiber; the protective cover is slidably matched with the inner wall of the sleeve; the two groups of permanent magnet assemblies also include a buffer mechanism consisting of a hook and a hook, a magnetic flux converter and an energy storage device, the hook is fixedly arranged at the lower bottom of the permanent magnet protective cover, the hook is fixed at one end of the protective cover close to the magnetic shielding plate, a through groove is provided at the position where the sleeve and the hook match, through which the hook can extend and move axially, a hook corresponding to the hook is provided on the path where the hook moves toward the magnetic shielding plate with the permanent magnet and on the outside of the sleeve, the hook is connected to the magnetic flux converter, and the electromagnetic coil in the magnetic flux converter is connected to the energy storage device after rectification.

[0020] The present invention protects the permanent magnets by adding protective covers in the two sets of permanent magnet assemblies, thereby reducing the wear caused by the direct contact between the permanent magnets and the sleeve and the energy loss caused by friction, and at the same time, the overall hardness of the permanent magnets can be increased by the protective covers. When the magnetic shielding plate is lifted and pulled away, the two sets of side permanent magnets will be subjected to the oblique upward suction and pulling force exerted by the magnetic shielding plate, which will cause the permanent magnets on both sides to strongly collide with the inner wall of the sleeve at the sleeve port. Therefore, the present invention also provides hooks, hooks, magnetic flux converters and energy storage devices in the permanent magnet assemblies on both sides, which can minimize the collision of the inner wall of the sleeve with the permanent magnets with the same magnetic pole on both sides, and can convert the collision force into electrical energy that can be used for system operation. The hook can be hooked and engaged with the hook at a set position as the permanent magnets on both sides move toward the magnetic shielding plate; the hook is hooked and engaged with the hook before the permanent magnets on both sides are subjected to the oblique upward pulling force applied by the magnetic shielding plate, and the hook causes the magnetic flux of the electromagnetic coil of the magnetic flux converter to change when subjected to the upward pulling force of the hook, and generates electromagnetic induction, and the current generated by the electromagnetic coil of the magnetic flux converter due to electromagnetic induction is transmitted to the energy storage device after full-wave rectification, and the energy storage device is connected to the energy storage device through a unidirectional device, and the energy storage device can be a battery; the magnetic flux converter includes two electromagnetic coils, a U-shaped iron core and a return spring, and also includes a permanent magnet and two iron plates, the size of the two iron plates is larger than the permanent magnet and is connected to the permanent magnet The upper and lower north and south magnetic pole surfaces of the permanent magnet are in contact, the return spring is connected to one of the arms of the U-shaped iron core, the other end of the return spring is fixed on the housing of the magnetic flux converter, the two arms of the U-shaped iron core respectively penetrate into the two electromagnetic coils of the magnetic flux converter, the ends of the two arms of the U-shaped iron core are respectively located in the left and right concave spaces composed of two iron plates in contact with the upper and lower magnetic pole surfaces of the permanent magnet and the permanent magnet, and the two arm heads of the U-shaped iron core are respectively in contact with the inner side surfaces of the upper and lower iron plates in the two concave spaces; the U-shaped part of the U-shaped iron core is provided with a raised tip, the tip serves as the rotating shaft of the U-shaped iron core and rotates with the housing of the magnetic flux converter, and the two electromagnetic coils are electrically connected to the energy storage device through a full-wave rectifier. After the hook is engaged with the hook, when the hook is pulled upward by the hook on the protective cover, the hook can pull the arm of the U-shaped iron core to cause the U-shaped iron core to rotate around the protruding pointed axis and lengthen the return spring connected to the arm of the U-shaped iron core, so that the contact surface between the two arm heads of the U-shaped iron core that penetrate the electromagnetic coil and the upper and lower iron plates changes, so that the north and south magnetic poles of the two arm heads of the U-shaped iron core that contact the permanent magnet are exchanged, resulting in a change in the direction of the magnetic flux in the electromagnetic coil, and the electromagnetic coil generates electromagnetic induction and outputs current to the energy storage device; similarly, after the hook is disengaged from the hook, the return spring is reset, and the north and south magnetic poles of the two arm heads of the U-shaped iron core that contact the permanent magnet are exchanged again, and the electromagnetic coil generates electromagnetic induction again and outputs current to the energy storage device. The magnetic flux converter is fixed on the base of the system. If electronic devices such as Hall switches, electronic switches, and central controller CPU are used to replace the mechanical switches of this system, power can be provided by the energy storage device.In order to avoid interference of the magnetic flux converter with the permanent magnets on both sides, the magnetic flux converter should maintain a certain distance from the permanent magnets on both sides and provide good magnetic shielding.

[0021] As an improvement of the above scheme: two radially protruding protrusion structures are fixedly arranged on the permanent magnet protection cover, which are the first touch-pressure part and the second touch-pressure part respectively; a through groove is provided on the sleeve through which the first touch-pressure part and the second touch-pressure part can pass and can move axially; the outer side of the sleeve is correspondingly provided with the first power switch, the second power switch and the third power switch fixed on the machine base; the first power switch and the second power switch are located on the path of the first touch-pressure part moving toward the magnetic shielding plate, and the second power switch is closer to the magnetic shielding plate than the first power switch; the third power switch is located on the path of the second touch-pressure part moving away from the magnetic shielding plate; the first power switch, the second power switch and the third power switch are all normally open switches; a stop touch-pressure part is provided on the magnetic shielding plate, and the outer side of the magnetic shielding plate is provided with the first upper stop switch, the second upper stop switch and the lower stop switch fixed on the machine base The upper stop switch, the first upper stop switch, the second upper stop switch and the lower stop switch are sequentially arranged from top to bottom on the outer side of the magnetic shielding plate and are located on the lifting and lowering path of the stop touch and pressure part; the first upper stop switch is a single-pole double-throw switch including a first switch and a second switch, the first switch of the first upper stop switch is a normally closed switch, and the second switch of the first upper stop switch is a normally open switch; the second upper stop switch and the lower stop switch are both normally closed switches; the first switch of the first upper stop switch and the second upper stop switch respectively control the on-off of their respective ascending control circuits, the second switch of the first upper stop switch controls the on-off of the electromagnet, and the lower stop switch controls the on-off of the descending control circuit; when the first power switch and the second power switch are turned on, the ascending control circuit is triggered to be turned on and the ascending drive motor is started, and when the third power switch is turned on, the descending control circuit is triggered to be turned on and the descending drive motor is started;

[0022] When the first touch-and-press portion touches the first power switch, the first power switch is turned on, the ascending control circuit is turned on and the ascending drive motor is started, and when the magnetic shielding plate rises to make the stop touch-and-press portion touch the second upper stop switch, the second upper stop switch is disconnected and the ascending control circuit is disconnected; the first touch-and-press portion is separated from the first power switch, the first power switch is disconnected and restored to a normally open state, and when the magnetic shielding plate continues to rise, the stop touch-and-press portion is separated from the second upper stop switch, and the second upper stop switch is restored to a normally closed state;

[0023] When the first touch-and-press portion touches the second power switch, the second power switch is turned on, the ascending control circuit is turned on and the ascending drive motor is started; when the magnetic shielding plate rises to make the stop touch-and-press portion touch the first upper stop switch, the first switch of the first upper stop switch is disconnected, the ascending control circuit is disconnected, and at the same time, the second switch of the first upper stop switch is turned on, and the electromagnet starts to work; when the first touch-and-press portion is separated from the second power switch, the second power switch is disconnected and restored to the normally open state; when the magnetic shielding plate descends, the stop touch-and-press portion is separated from the first upper stop switch, the first switch of the first upper stop switch is restored to the normally closed state, the second switch of the first upper stop switch is restored to the normally open state, and the electromagnet stops working;

[0024] When the second touch-and-pressure portion touches the third power switch, the third power switch is turned on, the descent control circuit is turned on and the descent drive motor is started; when the magnetic shielding plate descends between the two sets of permanent magnet assemblies so that the stop touch-and-pressure portion touches the lower stop switch, the lower stop switch is disconnected and the descent control circuit is disconnected; the second touch-and-pressure portion is separated from the third power switch, and the third power switch returns to a normally open state; the stop touch-and-pressure portion is separated from the lower stop switch, and the lower stop switch returns to a normally closed state.

[0025] The present invention associates the movement of the permanent magnets on both sides with the movement of the magnetic shielding plate through the above-mentioned structural improvement scheme, and utilizes the association of the contact pressure of different power switches by different touch-and-pressure parts set on the protective cover of the permanent magnet and the contact pressure of different stop switches by the stop-position touch-and-pressure parts set on the magnetic shielding plate to realize orderly control of the lifting and lowering movement of the magnetic shielding plate, so that the rising, withdrawing and descending insertion movements of the magnetic shielding plate can correspond to the reciprocating translational movement of the permanent magnets on both sides; when the permanent magnets on both sides reach the corresponding position during the reciprocating translational movement, the contact pressure of the touch-and-pressure parts on the power switch can control the on-off of the lifting and lowering movement circuit of the magnetic shielding plate, thereby realizing that the magnetic shielding plate can be orderly and graded between the two groups of permanent magnet assemblies according to the movement positions of the permanent magnets on both sides.

[0026] As an improvement of the above scheme: a third radially protruding protrusion structure is also fixed on the permanent magnet protective cover as a third touch-pressing portion, and a magnet locking assembly adapted to the third touch-pressing portion is also provided on the machine base; the magnet locking assembly includes an electromagnet, a locking switch, a spring lock, a lock tongue, a tongue root, a deceleration spring and an electromagnet control switch; the electromagnet, the second switch of the first upper stop switch and the electromagnet control switch are connected in series to the power supply circuit of the electromagnet, and the locking switch is connected in series to the rising control circuit controlled by the second power switch; the lock tongue and the tongue root are respectively fixed at the upper and lower ends of the spring lock, and the locking switch is arranged between the tongue root and the electromagnet; the third touch-pressing portion is connected with the lock tongue and the lock ... connected with the lock tongue and the lock switch; the lock tongue and the tongue root are connected with the lock tongue and the lock switch; the lock tongue and the lock tongue are connected with the lock tongue and the lock switch; the lock tongue and the lock tongue are connected with the lock tongue and the lock switch; the lock tongue and the lock tongue are connected with the lock tongue and the lock switch; the lock tongue and the lock tongue are connected with the lock tongue and the lock switch; the lock tongue and the lock tongue are connected with the lock tongue and the lock tongue; the lock tongue and the lock tongue are connected with the lock tongue and the lock tongue; the lock tongue and the lock tongue are connected with the lock tongue and the lock tongue; the lock tongue and the lock tongue are connected with the lock tongue and the lock tongue; the lock tongue and the lock tongue are connected with the lock tongue and the lock tongue; the lock tongue and the lock tongue are connected with the lock tongue and the lock tongue; the lock tongue and the lock tongue are connected with the lock tongue and the lock tongue; the lock tongue and the lock tongue are connected with the lock tongue When the permanent magnet moves toward the magnetic shielding plate, the third touch-and-press part touches the electromagnet control switch and the lock tongue in turn. The third touch-and-press part touches the lock tongue of the spring lock to make the lock tongue retract and drive the root of the tongue to touch and press the lock switch to disconnect; when the electromagnet is energized, the spring lock is adsorbed to make the lock tongue retract. When the electromagnet is powered off, the spring lock lock tongue is reset under the action of the spring and drives the root of the tongue to disengage from the lock switch, and the lock switch is closed and turned on again; one end of the deceleration spring is fixed on the machine base, and the other end of the deceleration spring is suspended in the path of the third touch-and-press part moving toward the magnetic shielding plate. After the third touch-and-press part moves with the permanent magnet to contact the suspended end of the deceleration spring, the deceleration spring can be compressed to decelerate the movement speed of the permanent magnet. The lock tongue is located on the path of the third touch-and-press part moving toward the deceleration spring; the lock switch is a normally closed switch.

[0027] The present invention achieves locking and releasing of the permanent magnets on both sides at specific positions during the reciprocating translation process by cooperating the permanent magnet locking assembly with the third contact and pressure portion arranged on the permanent magnet protective cover. Considering that in the process of the magnetic shielding plate rising and being pulled out from between the two groups of permanent magnet assemblies, the magnetic shielding plate has always had an attraction force on the permanent magnets of the two groups of permanent magnet pole assemblies, and the two groups of permanent magnets will be subjected to the oblique upward attraction force exerted by the magnetic shielding plate. This force will greatly weaken or offset the mutual repulsion force between the permanent magnets on both sides when the distance between the permanent magnets on both sides is close, resulting in the permanent magnets on both sides being attracted by the magnetic shielding plate and unable to bounce off quickly and forcefully through the mutual repulsion force between them. Only as the magnetic shielding plate gradually moves away from the permanent magnets on both sides, the attraction force on the permanent magnets on both sides will gradually weaken. When the horizontal component of the attraction force of the magnetic shielding plate on the permanent magnets on both sides is less than the repulsion force between the permanent magnets on both sides, the permanent magnets with the same magnetic poles on both sides can gradually and slowly leave. In this case, the transmission mechanism cannot be driven to work. The present invention provides two permanent magnet locking components and adds a third contact and pressure portion on the permanent magnet protection cover. When the permanent magnets on both sides move toward the magnetic shielding plate to a set position, the two groups of permanent magnet locking components are used to lock the permanent magnets on both sides, and the locked permanent magnets on both sides are released after the magnetic shielding plate is raised and withdrawn to be completely withdrawn. At this time, the permanent magnets on both sides are no longer affected by the attraction of the magnetic shielding plate, and the repulsive force between the permanent magnets with the same magnetic pole can fully play a role, and the permanent magnets on both sides are quickly ejected under the action of the mutual repulsive force. When the permanent magnets on both sides move to the set position, the third touch-pressure part touches the lock tongue of the spring lock, so as to realize the locking and releasing functions of the permanent magnets on both sides: first, an electromagnet control switch is arranged on the path of the third touch-pressure part moving toward the magnetic shielding plate and in front of the spring lock. The working condition of the electromagnet control switch is to be turned on and maintained only when touched in one direction, and to be disconnected and maintained when touched in the reverse direction. After the third touch-pressure part touches the electromagnet control switch to be turned on, it touches the lock tongue of the spring lock again to retract the lock tongue into the spring lock. At the same time, the lock tongue of the spring lock drives the tongue root to touch and press the locking switch. Since the locking switch is a normally closed switch, the locking switch is disconnected at this time; when the permanent magnets on both sides are close to the magnetic shielding plate, the deceleration spring is compressed to reduce the movement speed of the permanent magnets of the two sets of permanent magnet assemblies.The locking switch is connected in series in the rising control circuit controlled by the second power switch. The function of the locking switch is to ensure that the magnetic shielding plate can be withdrawn in the second stage only after the spring lock tongue has completed the retraction and extension process. The purpose is to prevent the first contact and pressure portion from contacting and pressing the second power switch to be turned on before the spring lock tongue has completed the retraction and extension process, so that the rising control circuit starts to withdraw the magnetic shielding plate in the second stage, resulting in the permanent magnets on both sides starting to move away from each other in advance under the action of mutual repulsion, thus failing to achieve the effect of the spring lock on locking the permanent magnets on both sides; after the permanent magnets on both sides continue to move toward the magnetic shielding plate and pass through the spring lock, the spring lock tongue returns to its original position under the action of its own spring and extends out of the spring lock, and the locking switch returns to the closed state. At this time, the lock tongue of the spring lock blocks the third contact and pressure portion, so that the permanent magnets on both sides cannot move away from each other, so that the locking of the permanent magnets on both sides is achieved by the blocking of the third contact and pressure portion by the lock tongue of the spring lock. When the magnetic shielding plate rises and is withdrawn to a set position completely separated from the two sets of permanent magnet assemblies, the stop touch-pressing portion touches the first upper stop switch to close the second switch of the first upper stop switch. Since the electromagnet control switch has been touched by the third touch-pressing portion in advance and is in a closed state, the circuit of the electromagnet is turned on, and the electromagnet works to attract the spring lock tongue to retract the spring lock tongue. At this time, the third touch-pressing portion is no longer blocked by the spring lock tongue, and quickly pops open under the rebound force of the deceleration spring and the mutual repulsion between the permanent magnets on both sides. The third touch-pressing portion touches the electromagnet control switch in the reverse direction as the permanent magnets on both sides move away from the magnetic shielding plate. The electromagnet control switch is disconnected and maintained, the electromagnet is powered off and stops working, and the spring lock tongue returns to its original position under the action of its own elastic force and extends out of the spring lock.

[0028] As an improvement of the above scheme: the permanent magnet kinetic energy conversion mechanism also includes a first electromagnetic switch and a second electromagnetic switch, the first electromagnetic switch is electrically connected to the first electromagnetic coil, and the second electromagnetic switch is electrically connected to the second electromagnetic coil; the first electromagnetic switch and the second electromagnetic switch are both normally open switches; the first electromagnetic coil is wound around the end of the sleeve close to the magnetic shielding plate, and the second electromagnetic coil is wound around the end of the sleeve away from the magnetic shielding plate; the first electromagnetic switch is located on the path where the first touch-and-press portion moves toward the magnetic shielding plate, and the second electromagnetic switch is located on the path where the second touch-and-press portion moves away from the magnetic shielding plate; the first switch of the first upper stop switch is connected in series to the circuit of the first electromagnetic coil, and the lower stop switch is connected in series to the circuit of the second electromagnetic coil.

[0029] The present invention sets a first electromagnetic switch and a second electromagnetic switch, and the electromagnetic switches are turned on by the first touch-pressing part touching the first electromagnetic switch and the second touch-pressing part touching the second electromagnetic switch, and the corresponding electromagnetic coil is controlled to be on and off; the electromagnetic coil is connected to the energy storage device through the first electromagnetic switch and the second electromagnetic switch. The first electromagnetic coil can convert the kinetic energy obtained by the attraction between the permanent magnets on both sides and the magnetic shielding plate into electrical energy to be recovered by the energy storage device. At the same time, when the permanent magnets on both sides reciprocate to the upper and lower dead points at both ends, it can generate electromagnetic resistance to the permanent magnets on both sides, reduce the speed of the permanent magnets on both sides at the upper and lower dead points, and reduce the impact on the system. The electrical energy converted by the electromagnetic coil to this part of the kinetic energy is also recovered by the energy storage device. The stop switch and the electromagnetic coil are connected in series to prevent the permanent magnets on both sides from turning back at the upper or lower dead points, and the touch-pressing part will touch the electromagnetic switch again to turn on, thereby affecting the reciprocating speed of the permanent magnets on both sides. In this solution, since the stop switch is disconnected when the permanent magnets on both sides are folded back, the non-conducting electromagnetic coil will not have any influence on the folding movement of the permanent magnets on both sides.

[0030] As an improvement of the above scheme: the inner side of the turntable in the transmission assembly is provided with an annular groove concentric with the turntable, and the two ends of the cross bar respectively form a sliding fit with the annular grooves of the two turntables; the outer side of the annular groove is also provided with a sleeve penetrating the turntable in the thickness direction of the turntable, and a telescopic rod penetrating the sleeve is movably provided in the sleeve, and the two ends of the telescopic rod extend to the inner side of the turntable and the outside of the sleeve respectively, and the telescopic rod and the sleeve form a circumferential limit and axially movable fit; one end of the telescopic rod and the cross bar on the same side is bent toward the center of the turntable to form a bent section, and the other end of the telescopic rod passes through a reset spring vertically arranged on the outer side of the turntable, one end of the reset spring is fixedly connected to the turntable, and the other end of the reset spring is fixedly connected to the turntable. The end is connected to the telescopic rod; a first blocking plate and a second blocking plate are rotatably arranged on the inner side of the turntable, one end of the first blocking plate and the second blocking plate are located on the path where the cross bar slides along the circular groove, and a blocking column is fixedly arranged on the inner side of the turntable, the bending section and the blocking column are located between the first blocking plate and the second blocking plate, the bending section forms a limiting fit with the other end of the first blocking plate, and the blocking column forms a limiting fit with the other end of the second blocking plate; a protrusion is fixed on the surface of the support plate close to the turntable, the protrusion is located on the path where the telescopic rod rotates with the turntable, and the fixed position of the protrusion on the support plate corresponds to the position where the permanent magnets of the two sets of permanent magnet pole assemblies are locked by the permanent magnet locking assembly. When the permanent magnets of the two sets of permanent magnet pole assemblies are locked, the telescopic rod rotates with the turntable to the position of the protrusion and contacts the protrusion. The protrusion contacts the telescopic rod to make the telescopic rod extend in the direction away from the support plate and compress the reset spring. The contact pressure of the protrusion on the telescopic rod forces the bent section to disengage from the limiting cooperation with the other end of the first blocking plate. When the permanent magnet locking assembly unlocks the permanent magnets of the two sets of permanent magnet pole assemblies, the telescopic rod rotates with the turntable to the position of the protrusion, the telescopic rod disengages from the protrusion, and the telescopic rod is reset under the action of the reset spring, and the bent section resumes the limiting cooperation with the other end of the first blocking plate.

[0031] The present invention optimizes the structure of the transmission assembly so that the crossbar and the turntable can be bound together to form a whole for synchronous movement, and can be unbound to allow relative movement between the crossbar and the turntable. During the period when the permanent magnets in the two sets of permanent magnet assemblies are locked by the permanent magnet locking assembly, the permanent magnets cannot move and cannot provide movable displacement for the transmission mechanism. At this time, under the action of the corresponding protrusion and the telescopic rod, the crossbar and the turntable are unbound, and the crossbar and the turntable can move relative to each other, so that the turntable maintains rotation under the action of the inertia of the inertial flywheel; after the permanent magnet locking assembly unlocks the permanent magnets of the two sets of permanent magnet pole assemblies, the telescopic rod rotates with the turntable past the position of the protrusion, the telescopic rod is out of contact with the protrusion, the crossbar and the other end of the first blocking plate resume the limit fit, and the turntable and the crossbar are bound together to form an integral structure and operate together. The above structure forms a cross bar that can only enter the limiting structure composed of the first baffle plate and the second baffle plate from the first baffle plate in the direction of the turntable rotation, and cannot reverse the direction of the turntable rotation and exit without the bending section being separated from the protruding portion to limit the cooperation, so as to ensure that when the permanent magnet moves to the lower dead point farthest from the magnetic shielding plate, the cross bar can use the inertia of the inertia flywheel and bring the permanent magnets in the two sets of permanent magnet assemblies back to the upper dead point closest to the magnetic shielding plate through the connecting rod; or, the cross bar can only enter the limiting structure composed of the first baffle plate and the second baffle plate from the second baffle plate in the opposite direction of the turntable rotation, so as to ensure that the cross bar can move relative to the turntable when it is stationary. The above structure can prevent the entire system from being stuck during the period when the permanent magnets of the two sets of permanent magnet pole assemblies are locked by the permanent magnet locking assembly, and keep the entire system running normally during the period when the permanent magnets of the two sets of permanent magnet assemblies are locked. In order to efficiently utilize the repulsive force between the permanent magnets on both sides and to ensure that each time the cross bar moves from the upper dead point to the lower dead point, the repulsive force between the permanent magnets can be transmitted to the blocking column as quickly as possible with the shortest distance and shortest time to drive the turntable to rotate, a limiting structure consisting of multiple groups of first blocking plates and second blocking plates and corresponding limit cooperation can be set on the turntable.

[0032] As an improvement of the above scheme: it also includes a cross bar bearing fixed at the end of the cross bar, and the cross bar bearing extends into the circular groove to form a sliding fit; the end of the telescopic rod that contacts the protrusion is provided with a slope surface or a telescopic rod bearing, the slope surface is provided on the side of the telescopic rod facing the protrusion, and the axial direction of the telescopic rod bearing is perpendicular to the length direction of the telescopic rod and forms a rolling fit when in contact with the protrusion.

[0033] The present invention provides a crossbar bearing on the crossbar to achieve sliding cooperation with the turntable, which can effectively reduce the influence of friction resistance when the crossbar and the turntable move relative to each other, so that the relative movement of the turntable and the crossbar after the turntable and the crossbar are untied is smoother, and the energy loss in this process is also reduced; the present invention optimizes the end structure of the telescopic rod, so that the process of the raised part contacting and pressing the end of the telescopic rod is smoother, which can avoid stagnation of the raised part due to obstruction when contacting and pressing the end of the telescopic rod, and make the retraction of the telescopic rod smoother.

[0034] As an improvement of the above scheme: the rotating shafts of the two transmission components are synchronously rotated by a synchronization mechanism, and the synchronization mechanism includes a synchronization gear fixed on the rotating shaft, an inertia flywheel, and a synchronization chain meshing with the synchronization gear. The present invention drives the two transmission components to achieve synchronous action by setting a synchronization mechanism, and can use the inertia of the inertia flywheel to maintain the rotation of the turntable during the period when the permanent magnets on both sides are locked.

[0035] The beneficial effects of the present invention are as follows: the present invention realizes repeated translation of the repelling permanent magnets on both sides by orderly withdrawing and inserting the magnetic shielding plate between the two groups of permanent magnet assemblies, thereby driving the two groups of transmission mechanisms to work and realizing the effect of using magnetic energy to do external work; the present invention simultaneously utilizes the attraction and repulsion of the permanent magnets, and in terms of energy distribution, can convert the kinetic energy obtained by the mutual attraction between the permanent magnets on both sides and the magnetic shielding plate into electrical energy, which is used to compensate for the energy consumption of withdrawing and inserting the magnetic shielding plate, and at the same time utilizes the repulsive force between the permanent magnets on both sides after the magnetic shielding plate is withdrawn from between the two groups of permanent magnet assemblies to drive the transmission mechanism to work and output torque externally, thereby effectively improving the operating efficiency of the entire system and achieving a good energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 It is a schematic diagram of the structure of the magnetic shielding plate in the present invention;

[0038] Figure 3 A half-cut perspective schematic diagram of the integrated structure of the magnetic shielding cover and the magnetic shielding plate in the present invention;

[0039] Figure 4 A schematic diagram of the cooperation between the magnetic shielding plate and the permanent magnet assembly for installing the magnetic shielding cover;

[0040] Figure 5 A schematic diagram of the cooperation between an implementation structure of a permanent magnet and a magnetic shielding plate;

[0041] Figure 6 It is a schematic diagram of the coordination between the kinetic energy conversion mechanism and the magnetic shielding mechanism;

[0042] Figure 7 It is a schematic diagram of the permanent magnet locking assembly when the permanent magnet is not locked;

[0043] Figure 8 It is a schematic diagram of the permanent magnet locking assembly locking the permanent magnet;

[0044] Fig. 9 Schematic diagram of the control circuit for implementing the second stage extraction of the magnetic shielding plate;

[0045] Fig.10 This is the control circuit schematic diagram of the electromagnet adsorbing the spring lock tongue;

[0046] Fig.11 It is a schematic diagram of the coordination between the permanent magnet kinetic energy conversion mechanism, the transmission mechanism and the magnetic shielding mechanism;

[0047] Fig.12 It is a side view of the right part when the cross bar is blocked by the bent section of the telescopic rod and rotates together with the turntable;

[0048] Fig.13 It is a side view of the right part when the cross bar is not blocked by the bent section of the telescopic rod and moves relative to the turntable;

[0049] Fig.14 It is a front view when the crossbar is blocked by the blocking column and pushes the turntable to rotate together;

[0050] Fig.15 It is a front view when the cross bar is not blocked by the bent section of the telescopic rod and rotates relative to the turntable;

[0051] Fig.16 It is a schematic diagram of system energy distribution of the present invention.

[0052] Marked in the figure: 100-base, 200-magnetic shielding mechanism, 210-magnetic shielding plate, 211-transmission section, 212-first magnetic shielding section, 213-second magnetic shielding section, 214-stop touch and pressure part, 220-upward drive motor, 230-downward drive motor, 240-magnetic shielding cover, 251-first upper stop switch, 252-second upper stop switch, 253-lower stop switch, 300-permanent magnet kinetic energy conversion mechanism, 310-permanent magnet, 311-first touch and pressure part, 312-second touch and pressure part, 313-third touch and pressure part, 320-sleeve, 330-first electromagnetic coil, 340-second electromagnetic coil, 350-protective cover, 361-first power switch, 362-second power switch, 363-third power switch, 371-first electromagnetic Switch, 372-second electromagnetic switch, 400-transmission mechanism, 410-straight rod, 420-connecting rod, 430-cross rod, 431-cross rod bearing, 500-energy storage device, 600-external motor, 700-transmission assembly, 710-turntable, 711-circular groove, 712-first blocking plate, 713-second blocking plate, 714-blocking column, 720-rotating shaft, 730-support plate, 731-protrusion, 740-sleeve, 750-telescopic rod, 751-bending section, 752-telescopic rod bearing, 760-reset spring, 810-electromagnet, 820-lock switch, 830-spring lock, 840-lock tongue, 850-tongue root, 860-buffer spring, 870-electromagnetic control switch, 910-synchronous gear, 920-inertia flywheel. DETAILED DESCRIPTION

[0053] In order to facilitate the understanding of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0054] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, and “inside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0055] like Figure 1As shown, the reciprocating motion system based on magnetic shielding and permanent magnet mutual repulsion disclosed in the present invention includes a base 100, a magnetic shielding mechanism 200, a permanent magnet kinetic energy conversion mechanism 300, a transmission mechanism 400, a speed regulating mechanism and an energy storage device 500; the base 100 is used to realize the installation and fixation of other components, the magnetic shielding mechanism 200 is used to attract the permanent magnet 310 in the permanent magnet kinetic energy conversion mechanism 300 and weaken the mutual repulsion between the permanent magnets through magnetic shielding, and the permanent magnet kinetic energy conversion mechanism 300 is used to convert the kinetic energy obtained by the permanent magnet 310 and the magnetic shielding plate 210 of the magnetic shielding mechanism 200 into In order to convert the electric energy into electricity, the transmission mechanism 400 is used to output torque outward under the drive of the permanent magnet kinetic energy conversion mechanism 300, and the speed regulating mechanism is used to adjust the speed of the entire reciprocating motion system. In addition to being used to recover the electric energy converted by the permanent magnet kinetic energy conversion mechanism 300, the energy storage device 500 mainly provides working power to the relevant functional electrical appliances of the magnetic shielding mechanism 200. The functional electrical appliances include the rising drive motor 220 and the descending drive motor 230, as well as the electromagnet 810 for locking and releasing the permanent magnet 310 and the thyristor in the control circuit; the energy storage device 500 is a battery or a capacitor and related supporting components of the power supply.

[0056] The magnetic shielding mechanism 200 used in the present invention is composed of a magnetic shielding plate 210, an ascending drive mechanism, a descending drive mechanism and a magnetic shielding cover 240. The magnetic shielding plate 210 is used to attract and apply magnetic shielding to the permanent magnet 310 in the permanent magnet kinetic energy conversion mechanism 300. The magnetic shielding plate 210 attracts the permanent magnet 310 in the permanent magnet kinetic energy conversion mechanism 300 through its own ferromagnetism so that the permanent magnet 310 moves toward the magnetic shielding plate 210, so that the permanent magnet 310 generates kinetic energy. At the same time, during the movement of the permanent magnet 310 of the permanent magnet kinetic energy conversion mechanism 300 toward the magnetic shielding plate 210 of the magnetic shielding mechanism 200, the magnetic shielding plate 210 applies magnetic shielding to the permanent magnet 310 to weaken the repulsive force between the permanent magnets 310 of the permanent magnet kinetic energy conversion mechanism 300. The ascending drive mechanism and the descending drive mechanism are used to drive the magnetic shielding plate 210 to ascend and descend respectively. The magnetic shielding cover 240 is used to enhance the magnetic shielding effect of the magnetic shielding plate 210 on the permanent magnet 310 of the permanent magnet kinetic energy conversion mechanism 300. The ascending drive mechanism and the descending drive mechanism are both electrically connected to the energy storage device 500; the ascending drive mechanism includes an ascending drive motor 220, an ascending control circuit and an ascending transmission assembly, and the descending drive mechanism includes a descending drive motor 230, a descending control circuit and a descending transmission assembly; the ascending control assembly and the descending control assembly can both use conventional gear transmission assemblies, and the ascending drive motor 220 and the descending drive motor 230 can use a stepper motor with a faster start, and a servo motor can also be used if a faster start is required; the magnetic shielding plate 210 can form a transmission match with the ascending transmission assembly and the descending transmission assembly through the transmission section 211 in a gear meshing manner, and the magnetic shielding plate 210 can perform reciprocating lifting and lowering motions in the vertical direction under the control of the ascending drive mechanism and the descending drive mechanism. The ascending control mechanism and the descending control mechanism are both electrically connected to the speed regulating mechanism. The ascending speed and descending speed of the magnetic shielding plate 210 are controlled by adjusting the current of the ascending control circuit and the descending control circuit by the speed regulating mechanism to achieve the purpose of system speed regulation.

[0057] Specifically, the magnetic shielding plate 210 is made of a material with high magnetic permeability and high magnetic saturation, such as a composite metal plate composed of multiple silicon steel sheets stacked together, or a composite metal plate composed of multiple Permalloy sheets stacked together, to reduce the generation of eddy currents. Because the same-pole magnets of the permanent magnets 310 are difficult to approach each other, the present invention inserts the magnetic shielding plate 210 between the two groups of permanent magnet assemblies. On the one hand, the magnetic shielding plate 210 can attract the two repelling permanent magnets 310 to make the permanent magnets 310 on both sides approach the magnetic shielding plate 210, thereby pulling the two permanent magnets 310 with the same magnetic poles together. On the other hand, the magnetic shielding plate 210 can be magnetically shielded to reduce the mutual repulsion between the permanent magnets 310 on both sides, so that the permanent magnets 310 on both sides can approach the magnetic shielding plate 210 faster.

[0058] Although the thicker the ferromagnetic magnetic shielding plate 210 is, the better the magnetic shielding effect on the permanent magnet 310 is, if the magnetic shielding plate 210 is too thick, after the magnetic shielding plate 210 is lifted and withdrawn, the permanent magnets 310 of the permanent magnet assemblies on both sides are too far apart to ensure that sufficient mutual repulsion force can be provided; and if the magnetic shielding plate 210 is too thin, the magnetic shielding effect on the permanent magnet 310 is weakened, resulting in excessive mutual repulsion force and making it difficult for the permanent magnet 310 to approach the magnetic shielding plate 210. In view of the above problems, the present invention further optimizes the structure of the magnetic shielding plate 210, and sets the magnetic shielding plate 210 to a multi-segment structure with different thickness segments, such as Figure 2As shown, the magnetic shielding plate 210 is composed of a transmission section 211, a first magnetic shielding section 212 and a second magnetic shielding section 213 connected in sequence from top to bottom. The transmission section 211 forms a transmission match with the ascending drive mechanism and the descending drive mechanism in the magnetic shielding mechanism 200, and transmission teeth are arranged on both sides of the transmission section 211 to form a transmission meshing with the ascending drive motor 220 and the descending drive motor 230 respectively. The thickness of the first magnetic shielding section 212 is greater than the thickness of the second magnetic shielding section 213. The first magnetic shielding section 212 is located between the transmission section 211 and the second magnetic shielding section 213. The second magnetic shielding section 213 is a section away from the ascending drive mechanism and the descending drive mechanism, and there is an arc transition between the first magnetic shielding section 212 and the second magnetic shielding section 213. Through the above structural improvement, the magnetic shielding plate 210 is formed into a thickness distribution shape with a thick middle part and a thin lower part; accordingly, the rising and withdrawing action of the magnetic shielding plate 210 is also performed in steps. The magnetic shielding plate 210 first attracts the permanent magnets 310 on both sides through the first magnetic shielding section 212 in the middle. Since the first magnetic shielding section 212 is thicker, it can effectively shield the magnetic field and reduce the penetration rate of the magnetic field line, which can effectively solve the repulsion problem between the permanent magnets 310 in this process; then, when the permanent magnet 310 approaches the magnetic shielding plate 210, the magnetic shielding plate 210 is driven to be withdrawn upward by the rising driving mechanism. At this time, the second magnetic shielding section 213 of the magnetic shielding plate 210 replaces the first magnetic shielding section 212 and rises to between the two permanent magnets 310. Although the magnetic shielding effect of the thinner second magnetic shielding section 213 on the permanent magnet 310 is weakened and the mutual repulsion between the two permanent magnets 310 is enhanced, the permanent magnet 310 has entered the mutual attraction area with the second magnetic shielding section 213 at this time. In this area, the mutual attraction between the second magnetic shielding section 213 and the permanent magnet 310 is greater than the repulsion between the two permanent magnets 310, so that the two permanent magnets 310 still approach the second magnetic shielding section 213. It should be noted here that the thickness of the first magnetic shielding section 212 cannot exceed the range of mutual attraction between the second magnetic shielding section 213 and the permanent magnet 310, otherwise after the first magnetic shielding section 212 is withdrawn, the mutual attraction between the second magnetic shielding section 213 and the permanent magnet 310 will be less than the repulsion between the two permanent magnets 310, so that the two permanent magnets 310 cannot approach the second magnetic shielding section 213. Through the above-mentioned structural improvement of the magnetic shielding plate 210, it can be ensured that the mutual repulsion force generated by the same magnetic poles when the permanent magnets 310 are close to each other is as small as possible, so that the permanent magnets 310 can obtain more kinetic energy, and at the same time, the permanent magnets 310 on both sides can be brought closer together due to the mutual attraction with the magnetic shielding plate 210, so as to enhance the accumulation of magnetic potential energy of the permanent magnets 310.

[0059] Furthermore, in order to improve the magnetic shielding effect of the magnetic shielding plate 210 on the permanent magnet 310 and reduce magnetic leakage, the present invention also provides a magnetic shielding cover 240. Figure 3 and Figure 4As shown, a magnetic shielding cover 240 is fixed from the three edges of the magnetic shielding plate 210 to both sides of the magnetic shielding plate 210 respectively. The magnetic shielding cover 240 is a cover structure with an opening, and the opening of the magnetic shielding cover 240 is opposite to the permanent magnet assemblies on both sides. Two groups of permanent magnet assemblies with opposite magnetic poles are horizontally arranged on both sides of the magnetic shielding plate 210 in the vertical direction in the magnetic shielding cover 240. The material and structure of the magnetic shielding cover 240 are the same as those of the magnetic shielding plate 210, and the magnetic shielding cover 240 and the magnetic shielding plate 210 are an integral structure. When the magnetic shielding plate 210 is not raised to the position of being separated from the permanent magnet assembly, the permanent magnets 310 of the two groups of permanent magnet assemblies are within the magnetic shielding range of the magnetic shielding cover 240 and the magnetic shielding plate 210; the end face of the magnetic shielding cover 240 is set as an arc surface, and a plurality of ventilation holes are set on the arc surface of the magnetic shielding cover 240 to reduce the wind resistance encountered during the process of withdrawing the magnetic shielding plate 210.

[0060] The present invention uses the permanent magnet kinetic energy conversion mechanism 300 to convert the kinetic energy generated by the mutual attraction between the permanent magnet 310 and the magnetic shielding plate 210 into electrical energy through electromagnetic induction, and transmits it to the energy storage device 500 for storage.

[0061] like Figure 1 and Figure 6As shown, there are two groups of permanent magnet kinetic energy conversion mechanisms 300, and the two groups of permanent magnet kinetic energy conversion mechanisms 300 are respectively arranged on both sides of the magnetic shielding plate 210. The permanent magnet kinetic energy conversion mechanism 300 includes a permanent magnet assembly, and the permanent magnet assembly includes a permanent magnet 310, a protective cover 350, a sleeve 320, a first electromagnetic coil 330 and a second electromagnetic coil 340. The sleeve 320 is fixed on the base 100, and the permanent magnet 310 is movably arranged in the sleeve 320. The sleeves 320 of the two groups of permanent magnet kinetic energy conversion mechanisms 300 are coaxially arranged on both sides of the magnetic shielding plate 210. The first electromagnetic coil 330 and the second electromagnetic coil 340 are both wound and fixed on the sleeve 3 20 and are respectively located at both ends of the sleeve 320; the first electromagnetic coil 330 and the second electromagnetic coil 340 are electrically connected to the energy storage device 500, and an induced current can be generated by the axial movement of the permanent magnet 310 in the sleeve 320, and the generated induced current can be transmitted to the energy storage device 500; the movement of the permanent magnet 310 in the sleeve 320 is achieved by the mutual attraction between the magnetic shielding plate 210 and the permanent magnet 310 and the repulsive force between the permanent magnets 310 on both sides. The permanent magnet assembly also includes a buffer mechanism consisting of a hook, a hook, a magnetic flux converter and an energy storage device. The hook is fixedly arranged at the lower bottom of the protective cover 350, and the hook is fixed at one end of the protective cover 350 close to the magnetic shielding plate 210. The sleeve 320 has a through groove at the position where the hook cooperates with the hook, through which the hook can extend and move axially. A hook corresponding to the hook is arranged on the outer side of the sleeve on the path where the hook moves toward the magnetic shielding plate 210 along with the permanent magnet 310, and the hook is connected to the magnetic flux converter, and the electromagnetic coil in the magnetic flux converter is connected to the energy storage device through a rectifier.

[0062] The movement of the permanent magnet 310 in the sleeve 320 will inevitably be affected by the friction between the sleeve 320, thereby causing energy loss and wear of the permanent magnet 310. In order to reduce the energy loss and wear of components in this process, Figure 6 As shown, the present invention adds a protective cover 350 to wrap the permanent magnet 310; the material of the protective cover 350 is a non-metallic material with high strength, such as resin or carbon fiber. A bearing or a sliding block can be installed at the bottom of the protective cover 350, and a bearing or a ridge strip can be installed at the top of the protective cover 350, so that the protective cover 350 and the inner wall of the sleeve 320 form a sliding fit, thereby reducing the friction force. The permanent magnet 310 adopts a neodymium iron boron permanent magnet. In order to enhance the force between the permanent magnets, a Halbach array magnet or a single-sided magnet can also be used; the shape can be conventional strips, columns or blocks, and can also be as follows Figure 5As shown in the U-shaped permanent magnet 310, the U-shaped permanent magnets 310 on both sides of the magnetic shielding plate 210 are arranged opposite to each other with the same magnetic poles, and two magnetic shielding plates 210 are used to correspond to the magnetic poles of the permanent magnets 310 of the two groups of U-shaped permanent magnet assemblies. During operation, the two magnetic shielding plates 210 are simultaneously pulled away in opposite directions from each other, so that the two magnetic shielding plates 210 apply two pulling forces in opposite directions to the U-shaped permanent magnet 310 during the pulling process, and the pulling forces applied by the two magnetic shielding plates 210 offset each other, thereby enabling the entire permanent magnet kinetic energy conversion mechanism 300 to work more stably.

[0063] In order to realize the step-by-step withdrawal of the magnetic shielding plate 210 and link the lifting and lowering motion of the magnetic shielding plate 210 with the reciprocating motion of the permanent magnet 310, the present invention further improves the magnetic shielding mechanism 200 and the permanent magnet kinetic energy conversion mechanism 300. Figure 1 and Figure 6 As shown, two radially protruding protrusion structures are fixedly set on the protective cover 350 wrapped outside the permanent magnet 310, which are the first touch-pressing portion 311 and the second touch-pressing portion 312. At the same time, a through groove needs to be set on the sleeve 320, and the through groove extends along the axial direction of the sleeve 320 so that the touch-pressing portion 311 and the touch-pressing portion 312 can extend through the through groove. In order to match the touch-pressing part 311 and the touch-pressing part 312, the present invention further fixes three micro switches on the base 100, which are the first power switch 361, the second power switch 362 and the third power switch 363; the first power switch 361 and the second power switch 362 are located on the path of the first touch-pressing part 311 moving toward the magnetic shielding plate 210, and the second power switch 362 is closer to the magnetic shielding plate 210 than the first power switch 361, and the third power switch 363 is located on the path of the second touch-pressing part 312 moving away from the magnetic shielding plate 210; the first power switch 361, the second power switch 362 and the third power switch 363 are all normally open switches, which are turned on when touched and turned off when released. At the same time, Figure 1As shown in the figure, a protruding structure is provided on the transmission section 211 as a stop contact and pressure portion 214, and three micro switches are fixedly provided on the machine base 100 outside the transmission section 211, namely a first upper stop switch 251, a second upper stop switch 252 and a lower stop switch 253. The first upper stop switch 251, the second upper stop switch 252 and the lower stop switch 253 are sequentially provided from top to bottom on the lifting path of the stop contact and pressure portion 214, and the first upper stop switch 251 and the second upper stop switch 252 are respectively located at two arrival points of the segmented rise of the magnetic shielding plate 210, and the lower stop switch 253 is located at the arrival point of the descent of the magnetic shielding plate 210; the first upper stop switch 251, the second upper stop switch 252 and the lower stop switch 253 are all normally closed switches, which are disconnected when pressed and connected when released, wherein the first upper stop switch is a single-pole double-throw switch including a first switch and a second switch, the first switch of the first upper stop switch is a normally closed switch, and the second switch of the first upper stop switch is a normally open switch. The first switch of the first upper stop switch 251 and the second upper stop switch 252 are connected to the rising control circuit to segmentally control the on-off of the power supply circuit of the rising drive motor 220, and the lower stop switch 253 is connected to the descending control circuit to control the on-off of the power supply circuit of the descending drive motor 230; the first power switch 361 and the second power switch 362 are connected to the rising control circuit to trigger the start of the rising drive motor 220, and the third power switch 363 is connected to the descending control circuit to trigger the start of the descending drive motor 230.

[0064] The segmented rising and falling processes of the magnetic shielding plate 210 are adapted to the reciprocating motion process of the permanent magnet 310. When the first contact and pressure portion 311 contacts and presses the first power switch 361 and is turned on, the rising control circuit is turned on. Since the second upper stop switch 252 is in a normally closed state at this time, the first power switch 361 starts the rising drive motor 220 to drive the magnetic shielding plate 210 to rise until the first shielding segment 212 is separated from the permanent magnet assembly. When the stop contact and pressure portion 214 contacts and presses the second upper stop switch 252 as the magnetic shielding plate 210 rises, the second upper stop switch 252 is disconnected, and the rising control circuit is disconnected. At this point, the first-stage extraction of the magnetic shielding plate 210 is completed. When the stop portion 214 continues to rise with the magnetic shielding plate 210 and is separated from the second upper stop switch 252, The second upper stop switch 252 returns to the normally closed state; when the first contact and pressure portion 311 contacts and presses the second power switch 362 and turns on, if the locking switch 820 is also turned on at this time, the ascending control circuit is turned on, and the second stage of the magnetic shielding plate 210 is started to be withdrawn; the first power switch 361 is restored to the disconnected state due to the separation of the first contact and pressure portion 311, and since the first switch of the first upper stop switch 251 is in the normally closed state at this time, the second power switch 362 starts the ascending drive motor 220 to drive the magnetic shielding plate 210 to rise to the second shielding segment 213 to separate from the two sets of permanent magnet components, and when the stop contact and pressure portion 214 rises with the magnetic shielding plate 210 and contacts and presses the second permanent magnet components, the second power switch 362 starts the ascending drive motor 220 to drive the magnetic shielding plate 210 to rise to the second shielding segment 213 to separate from the two sets of permanent magnet components. When the first upper stop switch 251 is turned on, the first switch of the first upper stop switch 251 is disconnected, and the ascending control circuit is disconnected, thereby completing the second-stage withdrawal of the magnetic shielding plate 210. When the stop portion 214 is separated from the first upper stop switch 251, that is, after the shielding plate 210 is lowered and inserted between the two sets of permanent magnet components, the first switch of the first upper stop switch 251 is restored to the normally closed state, preparing for the next withdrawal of the magnetic shielding plate 210 from between the two sets of permanent magnet components. When the second contact-pressing portion 312 contacts and presses the third power switch 363 and turns on, the descending control circuit is turned on. Since the lower stop switch 253 is in the normally closed state at this time, the third power switch 363 is turned on. The switch 363 starts the descending drive motor 230 to drive the magnetic shielding plate 210 to descend between the two groups of permanent magnet assemblies; when the stop touch-and-press portion 214 touches the lower stop switch 253 as the magnetic shielding plate 210 descends, the lower stop switch 253 is disconnected, and the descending control circuit is disconnected. When the third power switch 363 is separated from the second touch-and-press portion 312, it is restored to the disconnected state; when the stop touch-and-press portion 214 is separated from the lower stop switch 253 as the magnetic shielding plate 210 rises, that is, after the shielding plate 210 begins to rise and withdraw from between the two groups of permanent magnet assemblies, the lower stop switch 253 is restored to the normally closed state, and is ready for the next descent to be inserted between the permanent magnet assemblies on both sides.

[0065] Specifically, in order to adapt to the high-speed reciprocating motion of the permanent magnet 310, each switch should also be able to operate quickly. The present invention uses three thyristors (SCR) and the linkage of the high-speed switch to realize the control of the ascending drive motor 220 and the descending drive motor 230. The three thyristors are thyristor 1, thyristor 2, and thyristor 3. One pin of the above power switch is connected to the control electrode (G) of the thyristor, and the other pin of the power switch is connected to the energy storage device 500 through the bias resistor R′. The thyristor is connected to the power supply circuit of the ascending drive motor 220 and the descending drive motor 230. When the power switch that is turned on by the thyristor being pressed by the pressing part triggers the conduction, the circuit of the corresponding drive motor is turned on, and the drive motor starts to work. When the stop switch in the circuit of the drive motor is disconnected, the thyristor is turned off, the circuit of the corresponding drive motor is disconnected, and the drive motor is powered off and stops working.

[0066] Considering the different electrical parameters required for the ascending staged extraction action and the descending insertion action of the magnetic shielding plate 210, the present invention controls the above two drive motors respectively through three circuits. Specifically, the first power switch 361, the second upper stop switch 252, the ascending drive motor 220 and the thyristor 1 are connected in series to the first circuit to realize the first stage extraction of the magnetic shielding plate 210 from the two groups of permanent magnet components; the second power switch 362, the first switch of the first upper stop switch 251 and the locking switch 820, the ascending drive motor 220 and the thyristor 2 are connected in series to the second circuit to realize the second stage extraction of the magnetic shielding plate 210 from the two groups of permanent magnet components; the third power switch 363, the descending drive motor 230 and the thyristor 3 are connected in series to the third circuit to realize the insertion of the magnetic shielding plate 210 between the two groups of permanent magnet components.

[0067] The specific circuit control of the magnetic shielding plate 210 being withdrawn and inserted and the timing sequence of each switch action are described as follows:

[0068] First, the insertion process of the magnetic shielding plate 210; when the permanent magnets 310 on both sides move to the vicinity of the lower dead point farthest away from the magnetic shielding plate 210, the magnetic shielding plate 210 needs to be inserted between the two groups of permanent magnet components to shield the magnetic lines of force of the permanent magnets 310 on both sides and to make the magnetic shielding plate 210 and the permanent magnets 310 on both sides attract each other, so that the permanent magnets 310 on both sides move closer to the magnetic shielding plate 210 from the lower dead point to reach the upper dead point. Assume that at this time, the stop touch-pressing part 214 is at the highest point of the rise with the rise of the magnetic shielding plate 210 and touches the first upper stop switch 251, so that the first switch of the first upper stop switch 251 is in the disconnected state, and the rising drive motor 220 is in the off state. When the second pressing portion 312 presses the third power switch 363 and turns on, the corresponding thyristor 3 is triggered and turned on. Since the lower stop switch 253 is currently in the normally closed state, the third circuit is turned on, and the descending drive motor 230 is started to drive the magnetic shielding plate 210 to be inserted downward between the two sets of permanent magnet components. At the same time, when the stop pressing portion 214 moves downward with the magnetic shielding plate 210, the stop pressing portion 214 disengages from the first upper stop switch 251, so that the first switch of the first upper stop switch 251 is restored to the original position. The magnetic shielding plate 210 is inserted into the space between the two permanent magnet assemblies, and the stop contact portion 214 contacts the lower stop switch 253, so that the lower stop switch 253 changes from on to off, the thyristor 3 is turned off, the third circuit is disconnected, and the descending drive motor 230 is turned off. At this point, the process of inserting the magnetic shielding plate 210 between the two permanent magnet assemblies is completed.

[0069] Second, the two-stage extraction process of the magnetic shielding plate 210; as described above, when the first contact and pressure portion 311 moves from the lower dead point toward the shielding plate 210 along with the permanent magnet 310, the first contact and pressure portion 311 contacts and presses the first power switch 361, so that the first power switch 361 is turned on, and the corresponding thyristor 1 is triggered and turned on. Since the second upper stop switch 252 is currently in a closed and turned-on state, the power supply circuit of the ascending drive motor 220 is turned on, so that the ascending drive motor 220 is started and drives the magnetic shielding plate 210 upward. The first stage is withdrawn. When the first stage is withdrawn to the right position, the stop contacting portion 214 contacts the second upper stop switch 252 as the magnetic shielding plate 210 rises, the second upper stop switch 252 is disconnected, the thyristor 1 is turned off, the first circuit is disconnected, and the ascending drive motor 220 stops working due to power failure. At the same time, the permanent magnet 310 moves to the first contacting portion 311 to contact the second power switch 362, so that the second power switch 362 is turned on, and the corresponding thyristor 2 is triggered to turn on. Since the first switch of the first upper stop switch 251 is The second upper stop switch 252 is in the closed state. At this time, if the locking switch 820 connected in series with the second power switch 362 is in the closed state, the ascending control circuit of the second circuit controlled by the second power switch 362 is turned on, and the ascending drive motor 220 is powered on again and starts to continue working. The drive motor 220 performs a second stage of upward withdrawal of the magnetic shielding plate 210. At this time, the stop contact and pressure portion 214 continues to move upward with the withdrawal of the magnetic shielding plate 210 and is disengaged from the second upper stop switch 252, so that the second upper stop switch 252 is restored. The closed conducting state prepares for the next first-stage extraction; when the extraction of the magnetic shielding plate 210 rises to the second-stage extraction completion, that is, the permanent magnet 310 is at the upper dead point closest to the magnetic shielding plate 210, the stop contacting portion 214 contacts the first upper stop switch 251, so that the first switch of the first upper stop switch 251 is disconnected, the thyristor 2 is turned off, the second circuit is disconnected, and the ascending drive motor 220 stops working due to power failure. At this point, the two-stage extraction process of the magnetic shielding plate 210 from between the two sets of permanent magnet assemblies is completely completed.

[0070] During the withdrawal process of the magnetic shielding plate 210, the permanent magnets 310 on both sides are subjected to an oblique upward pulling force due to the attraction between the magnetic shielding plate 210 and the permanent magnets 310 on both sides. In particular, when the permanent magnets 310 are close to the magnetic shielding plate 210, the horizontal component of the attraction of the magnetic shielding plate 210 on the permanent magnets 310 on both sides will greatly weaken the mutual repulsion between the permanent magnets 310, thereby causing the permanent magnets 310 on both sides to be unable to quickly pop open. Only when the magnetic shielding plate 210 completes the entire withdrawal process can the permanent magnets 310 on both sides slowly move away from each other under the action of the mutual repulsion, which obviously makes it difficult to drive the permanent magnet kinetic energy conversion mechanism 300 and the transmission mechanism 400 to work. In order to solve the above problem and make the divergence movement of the permanent magnets 310 on both sides not affected by the mutual attraction with the magnetic shielding plate 210, the present invention adds a permanent magnet locking assembly. Figure 6As shown, the permanent magnet locking assembly includes an electromagnet 810, a locking switch 820, a spring lock 830, a lock tongue 840, a tongue root 850, a deceleration spring 860 and an electromagnet control switch 870; the electromagnet 810 is connected in series with the second switch of the first upper stop switch 251 and the electromagnet control switch 870 to form a fourth circuit and is electrically connected to the energy storage device 500, and the locking switch 820 is connected in series to the second circuit rising control circuit with the second power switch 362; the lock tongue 840 and the tongue root 850 are respectively fixed at the upper and lower ends of the spring lock 830, and the locking switch 820 is arranged between the tongue root 850 and the electromagnet 810. When the electromagnet 810 is energized, the lock tongue 840 of the spring lock 830 is attracted to retract and drive the tongue root 850 to contact When the locking switch 820 is pressed and the electromagnet 810 is powered off, the lock tongue 840 of the spring lock 830 rebounds under the action of its own spring and drives the tongue root 850 to disengage from the locking switch 820; at the same time, a third radially protruding protrusion structure is provided on the protective cover 350 of the magnet 310 as the third contact and pressure portion 313, one end of the deceleration spring 860 is fixed on the machine base 100, and the other end is suspended and located on the path of the third contact and pressure portion 313 moving toward the magnetic shielding plate 210. After the third contact and pressure portion 313 moves to contact the deceleration spring 860, the deceleration spring 860 can be compressed, and the lock tongue 840 is located in the middle of the path of the third contact and pressure portion 313 moving toward the deceleration spring 860; the locking switch 820 is a normally closed switch, which is disconnected when pressed and turned on when released. The electromagnet control switch 870 can only be turned on and maintained by touching in one direction, and turned off and maintained by touching in the opposite direction, that is, when the third touch-pressing portion 313 approaches the magnetic shielding plate 210 with the permanent magnet 310, the third touch-pressing portion 313 first touches the electromagnet control switch 870 to turn on, and when the magnetic shielding plate 210 is pulled away from the second stage to reach the set position, the second switch of the first upper stop switch 251 becomes closed and turned on due to the touch and pressure of the stop touch-pressing portion 214, so the fourth circuit is turned on, and the electromagnet 810 starts to work; When the third pressing portion 313 starts to move away from the magnetic shielding plate 210 as the permanent magnet 310 moves, the third pressing portion 313 touches the electromagnet control switch 870 in the reverse direction to disconnect the electromagnet control switch 870, and then the fourth circuit is disconnected, and the electromagnet 810 stops working; the reason why the locking switch 820 is connected in series to the rising control circuit of the second circuit of the second power switch 362 is to ensure that the lock tongue 840 of the spring lock 830 completes the retraction and reset action before performing the second stage rising and withdrawal operation of the magnetic shielding plate 210.

[0071] The present invention uses the above-mentioned magnet locking assembly to lock the permanent magnets 310 on both sides when they are at the closest position to the magnetic shielding plate 210, and releases the permanent magnets 310 on both sides when the shielding member 210 is completely withdrawn. Specifically, when the permanent magnet 310 moves to the point where the first contact and pressure portion 311 contacts the first power switch 361, the magnetic shielding plate 210 is withdrawn at the first stage, and then the first contact and pressure portion 311 continues to move forward with the permanent magnet 310 to contact and press the second power switch 362 and turn it on. If the locking switch 820 is already turned on, the magnetic shielding plate 210 is withdrawn at the second stage; then, Figure 7 As shown, the permanent magnet 310 continues to move toward the magnetic shielding plate 210 until the third pressing portion 313 touches the electromagnet control switch 870, thereby conducting the fourth circuit. The permanent magnet 310 continues to move toward the magnetic shielding plate 210 until the third pressing portion 313 contacts the lock tongue 840. The lock tongue 840 retracts due to the contact of the third pressing portion 313, and drives the tongue root 850 of the spring lock 830 to contact the locking switch 820, thereby disconnecting the locking switch 820. Figure 8 As shown, after the third contact and pressure portion 313 passes through the spring lock 830, the lock tongue 840 is reset under the action of its own spring. At this time, the reset lock tongue 840 blocks the retreat of the third contact and pressure portion 313, and also prevents the permanent magnets 310 on both sides from moving backward, thereby locking the permanent magnets 310 on both sides; the permanent magnets 310 continue to move forward and cause the third contact and pressure portion 313 to compress the deceleration spring 860. Fig. 9 As shown, while the spring lock 830 locks the permanent magnets 310 on both sides, the tongue root 840 is separated from the locking switch 820, and the locking switch 820 resumes conduction. Since the locking switch 820 is connected in series in the second circuit, when the second power switch 362 is turned on due to being pressed by the first pressing portion 311, the second circuit is turned on, so that the magnetic shielding plate 210 can be lifted and withdrawn at the second stage. That is, only after the spring lock 830 reliably locks the permanent magnets 310 on both sides, the second circuit is turned on, and the magnetic shielding plate 210 can be lifted and withdrawn at the second stage. The fourth circuit is used to control the on and off of the power supply to the electromagnet 810. When the electromagnet 810 is energized, it can adsorb the lock tongue 840 of the spring lock 830 to retract the lock tongue 840, thereby realizing the release of the locked permanent magnets 310 on both sides; as shown in FIG. Fig.10As shown, the electromagnet control switch 870 is connected in series in the fourth circuit to control the power supply of the electromagnet 810. When the permanent magnets 310 on both sides are locked, the permanent magnets 310 on both sides cannot move. Since the electromagnet control switch 870 is already in the on state due to the previous touch of the third touch-pressing portion 313, when the second stage of the magnetic shielding plate 210 is pulled out to the right position, the first upper stop switch 251 is pressed by the stop touch-pressing portion 214, causing the second switch of the first upper stop switch 251 to be turned on, and the fourth circuit is turned on. The electromagnet 810 is powered on and starts to work. The electromagnet 810 is powered on to absorb the lock tongue 840 and retract it into the spring lock 830, and the two sides are The permanent magnet 310 is released, and then the permanent magnets 310 on both sides quickly bounce open under the action of the mutual repulsion force and the rebound force of the buffer spring 860; in this process, the third contact and pressure portion 313 touches the electromagnet control switch 870 in the reverse direction during the return movement of the magnet 310 away from the magnetic shielding plate 210, and the electromagnet control switch 870 is disconnected and maintained, and the electromagnet 810 is powered off and releases the adsorption of the lock tongue 840 of the spring lock 830, and the lock tongue 840 is reset under the action of its own spring and extends out of the spring lock 830 again.

[0072] By setting a permanent magnet locking assembly, the present invention can ensure that the permanent magnets 310 on both sides are not affected by the attraction of the magnetic shielding plate 210 and quickly pop open under the action of the mutual repulsion between the permanent magnets 310. At the same time, the permanent magnet locking assembly locks the permanent magnets 310 on both sides and leaves enough running time for the rising and withdrawal stroke of the magnetic shielding plate 210. After the magnetic shielding plate 210 is withdrawn into place, the permanent magnet locking assembly releases the permanent magnets 310 on both sides. Because the magnetic shielding plate 210 still maintains its attraction to the permanent magnet 310 during the process of rising and withdrawing, the repulsive force between the permanent magnets 310 on both sides is weakened by the attraction of the magnetic shielding plate 210. The present invention locks the permanent magnets 310 on both sides through a permanent magnet locking assembly to preserve the magnetic potential energy accumulated by the permanent magnets 310, reduce the pulling of the permanent magnet kinetic energy conversion mechanism 300 on the transmission mechanism 400, and thus can also reduce the jitter of the entire system; at the same time, the present invention can also transfer the kinetic energy of the permanent magnets 310 on both sides through the buffering of the buffer springs 860, and accumulate elastic potential energy through the compression of the buffer springs 860. When the permanent magnets 310 on both sides are released, the buffer springs 860 convert the elastic potential energy into the kinetic energy of the permanent magnets 310 on both sides to move back away from the magnetic shielding plate 210.

[0073] Considering that the permanent magnet 310 still has a large kinetic energy when it moves to the top dead center closest to the magnetic shielding plate 210 and the bottom dead center farthest from the magnetic shielding plate 210 during the reciprocating motion, the movement speed of the permanent magnets 310 on both sides needs to be decelerated near the top dead center and the bottom dead center. The present invention also provides two micro switches, a first electromagnetic switch 371 and a second electromagnetic switch 372, in the permanent magnet kinetic energy conversion mechanism 300. The first electromagnetic switch 371 is electrically connected to the first electromagnetic coil 330 to control the on and off of the first electromagnetic coil 330, and the second electromagnetic switch 372 is electrically connected to the second electromagnetic coil 340 to control the on and off of the second electromagnetic coil 340. The first electromagnetic switch 371 and the second electromagnetic switch 372 are both fixedly disposed on the base 100, such as Figure 6 As shown, the first electromagnetic coil 330 is wound around one end of the sleeve 320 close to the magnetic shielding plate 210, and the second electromagnetic coil 340 is wound around one end of the sleeve 320 away from the magnetic shielding plate 210; the first electromagnetic switch 371 is located on the path where the first pressing portion 311 moves toward the magnetic shielding plate 210, and the second electromagnetic switch 372 is located on the path where the second pressing portion 312 moves away from the magnetic shielding plate 210. Both the first electromagnetic switch 371 and the second electromagnetic switch 372 are normally open switches, which are turned on when pressed and turned off when released. At the same time, the first switch of the first upper stop switch 251 is connected in series to the circuit of the first electromagnetic coil 330, and the lower stop switch 253 is connected in series to the circuit of the second electromagnetic coil 340. The purpose is that the first electromagnetic switch 371 and the second electromagnetic switch 372 located near the upper and lower dead points of the permanent magnets 310 on both sides can only be turned on once in each reciprocating motion, so as to avoid the electromagnetic coil being turned on again due to the second contact of the contact and pressure part when the permanent magnet 310 starts to turn back from the upper and lower dead points, resulting in the permanent magnets 310 on both sides The speed of the return is slowed down and the transmission mechanism 400 is unable to operate. In order to reduce the impact of the reverse electromotive force generated by the disconnection of the electromagnetic coil on the electromagnetic switch, a freewheeling diode and a resistor can be used in parallel with the electromagnetic coil. The present invention controls the on and off of the corresponding electromagnetic coil by setting an electromagnetic switch, and the electromagnetic coil is connected to the energy storage device 500. The electromagnetic coil generates electromagnetic resistance to the reciprocating permanent magnet 310. On the one hand, it can reduce the speed of the permanent magnet 310 at the top dead center and the bottom dead center, making the system run more smoothly. On the other hand, it can convert the electric energy generated by electromagnetic induction between the electromagnetic coil and the permanent magnet 310 and the kinetic energy obtained by the mutual attraction between the permanent magnet 310 and the magnetic shield 210 into electric energy and recover them to the energy storage device 500.

[0074] like Figure 1 and Fig.11As shown, the transmission mechanism 400 used in the present invention includes a straight rod 410, a connecting rod 420, a cross rod 430 and two groups of transmission components 700. The straight rod 410 of the transmission mechanism 400 is fixedly connected to the protective cover 350 in the corresponding permanent magnet kinetic energy conversion mechanism 300 to achieve a fixed connection with the permanent magnet 310. The end of the straight rod 410 that is not connected to the protective cover 350 is rotatably connected to the connecting rod 420 through a bearing. The cross rod 430 is arranged perpendicular to the connecting rod 420. The end of the connecting rod 420 that is not connected to the straight rod 410 is rotatably connected to the middle part of the cross rod 430 through a bearing. The two ends of the cross rod 430 are respectively connected to the two groups of transmission components 700.

[0075] The transmission assembly 700 includes a turntable 710, a rotating shaft 720 and a support plate 730. The support plate 730 is used as a supporting component of the entire transmission mechanism 400. The two ends of the cross bar 430 are eccentrically matched with the two turntables 710 in the two groups of transmission assemblies 700 respectively. The rotating shaft 720 is fixedly connected to the center of the corresponding turntable 710. The rotating shaft 720 and the support plate 730 form a rotatable match through a bearing. The support plate 730 is fixed on the base 100. The rotating shaft 720 of one group of transmission assemblies 700 is transmission-matched with the external motor 600. There are two groups of permanent magnet kinetic energy conversion mechanisms 300 and transmission mechanisms 400, and the permanent magnet kinetic energy conversion mechanisms 300 and the transmission mechanisms 400 correspond one to one; during the reciprocating motion of the permanent magnets 310 in the two groups of permanent magnet kinetic energy conversion mechanisms 300, the mutual repulsive force of the permanent magnets 310 on both sides will be transmitted to the turntable 710 through the cooperation of the straight rod 410, the connecting rod 420 and the cross rod 430 to drive the turntable 710 to rotate, forming a crank-connecting rod structure and driving the rotating shaft 720 to rotate. The rotating shaft 720 outputs torque due to the transmission connection with the external motor 600, and the kinetic energy of the reciprocating motion of the permanent magnets 310 in the permanent magnet kinetic energy conversion mechanism 300 can be output to the external motor 600 through the transmission mechanism 400.

[0076] Because the present invention adopts a permanent magnet locking assembly to temporarily lock the permanent magnets 310 of the two sets of permanent magnet assemblies, during the period when the permanent magnets 310 are locked, the permanent magnet kinetic energy conversion mechanism 300 cannot drive the transmission mechanism 400 to work, causing the transmission mechanism 400 to be unable to maintain operation during this period and can only stop. In order to ensure that the transmission mechanism 400 can continue to work during the period when the permanent magnets 310 are locked, the present invention sets the structure composed of the cross bar 430 and the turntable 710 as an unbinding structure. When the permanent magnets 310 are not locked, the cross bar 430 and the turntable 710 are bound together and move together, which can ensure that the cross bar 430 transmits the repulsive force of the permanent magnets 310 of the two sets of permanent magnet assemblies to the turntable 710, and at the same time, the turntable 710 and the cross bar 430 can move together. The movement can also bring the permanent magnets 310 of the two groups of permanent magnet assemblies on both sides back to the working position near the upper stop position, and during the period when the permanent magnets 310 of the two groups of permanent magnet assemblies are locked, the cross bar 430 can be untied from the turntable 710, so that the turntable 710 and the cross bar 430 can move relative to each other, and the turntable 710 is driven by the inertia flywheel 920 to maintain rotation. The relative movement after the turntable 710 and the cross bar 430 are untied bypasses the jamming point when the permanent magnets 310 of the two groups of permanent magnet assemblies are locked. After the permanent magnets 310 of the two groups of permanent magnet assemblies are released and locked, the turntable 710 is re-tied to the cross bar 430 and moves together, thereby avoiding the transmission mechanism 400 being stuck and unable to continue working during the period when the permanent magnets 310 of the two groups of permanent magnet assemblies are locked.

[0077] Specifically, Figures 11 to 15As shown, a circular groove 711 is provided inside the rotating disk 710, and the circular groove 711 is concentric with the rotating disk 710. The two ends of the cross bar 430 are respectively inserted into the two circular grooves 711 to form a sliding fit. A sleeve 740 is also provided outside the circular groove 711 to penetrate the rotating disk 710 in the thickness direction of the rotating disk 710. The sleeve 740 is fixed to the outside of the rotating disk 710. The two ends of the telescopic rod 750 passing through the sleeve 740 extend to the inner and outer sides of the rotating disk 710 respectively. The rod body part of the telescopic rod 750 extending outside the sleeve 740 is provided with a limiting protrusion; the inner hole of the sleeve 740 is a rectangular hole or a prismatic hole, and the outer shape of the telescopic rod 750 passing through the sleeve 740 is also a rectangular or prismatic hole adapted thereto, so that the telescopic rod 750 and the sleeve 740 form a circumferential limiting fit, and the telescopic rod 750 can only move axially forward and backward in the sleeve 740. The end of the telescopic rod 750 located on the inner side of the rotating disk 710 is bent toward the center of the rotating disk 710 to form a bent section 751, and the end of the telescopic rod 750 located on the outer side of the rotating disk 710 passes through the return spring 760, and the return spring 760 is located between the limiting protrusion of the rod body of the telescopic rod 750 and the sleeve 740; when the telescopic rod 750 is axially extended relative to the sleeve 740, the return spring 760 can be compressed by the limiting protrusion of the telescopic rod 750 and the sleeve 740, and the telescopic rod 750 can axially move back to its original position under the rebound effect of the return spring 760 on the limiting protrusion of the telescopic rod 750 through the sleeve 740. A first blocking plate 712 and a second blocking plate 713 are rotatably provided on the inner side of the turntable 710 through a pin, and a torsion spring is provided on the pin so that the first blocking plate 712 and the second blocking plate 713 can be reset after rotating around the pin. One end of the first blocking plate 712 and the second blocking plate 713 are located on the path where the cross bar 430 slides along the annular groove 711, and the cross bar 430 can reliably contact and act with the first blocking plate 712 and the second blocking plate 713 on the sliding path. A blocking column 714 is also fixedly provided on the inner side of the turntable 710, and the bending section 751 and the blocking column 714 are located between the first blocking plate 712 and the second blocking plate 713. The other end of the first blocking plate 712 forms a limiting fit with the bending section 751, and the other end of the second blocking plate 713 forms a limiting fit with the blocking column 714. A gradient protrusion 731 is fixed on one surface of the support plate 730 close to the outer side of the turntable 710. The protrusion 731 is located on the path of the telescopic rod 750 rotating with the turntable 710. The fixed position of the protrusion 731 on the support plate 730 corresponds to the position where the permanent magnets 310 of the two sets of permanent magnet assemblies are locked by the permanent magnet locking assembly.When the cross bar 430 is associated with the connecting rod 420, the rhythm of the movement of the cross bar 430 and the permanent magnets 310 of the two sets of permanent magnet assemblies corresponds one to one, and the movement state of the permanent magnets 310 of the two sets of permanent magnet assemblies can be mapped out through the movement state of the cross bar 430, that is, when the cross bar 430 moves to the position of the protrusion 731 and touches the protrusion 731, the permanent magnets 310 of the two sets of permanent magnet assemblies move to the upper dead center; when the cross bar 430 moves to the position farthest from the protrusion 731, the permanent magnets 310 of the two sets of permanent magnet assemblies move to the lower dead center. Given that the turntable 710 and the cross bar 430 are tied together and operate together when the permanent magnets 310 of the two sets of permanent magnet assemblies are not locked, when the telescopic rod 750 and the cross bar 430 rotate together to the position of the protrusion 731, it indicates that the permanent magnets 310 of the two sets of permanent magnet assemblies have rotated to the upper stop point at this time. When the telescopic rod 750 contacts the protrusion 731 at this position, the protrusion 731 contacts the telescopic rod 750 to make the telescopic rod 750 move axially in the direction away from the support plate 730, so that the bending section 751 is disengaged from the limiting cooperation with the first blocking plate 712. At the same time, the telescopic rod 750 compresses the reset spring 760 toward the sleeve 740 through the limiting protrusion of the telescopic rod 750; when the permanent magnets 310 of the two sets of permanent magnet assemblies are locked and released, the telescopic rod 750 also rotates past the position of the protrusion 731 with the rotating disk 710, and the telescopic rod 750 is disengaged from the contact with the protrusion 731. The reset spring 760 applies a rebound force to the limiting protrusion of the telescopic rod 750 through the sleeve 740 to make the telescopic rod 750 return axially, and the bending section 751 resumes the limiting cooperation with the first blocking plate 712.

[0078] The first blocking plate 712 and the bent section 751 in the above structure of the present invention form a limit cooperation to block the reverse movement of the cross bar 430, so that after the cross bar 430 completes the transmission of the force to the turntable 710, it can rotate with the turntable 710, so that the inertia of the inertial flywheel 920 can be used to bring the permanent magnets 310 of the two sets of permanent magnet assemblies back to the upper dead center through the linkage of the turntable 710, the cross bar 430 and the connecting rod 420; the second blocking plate 713 is a fixed The fulcrum for the cross bar 430 to transmit the force, namely the blocking column 714, enables the cross bar 430 to exert force on the turntable 710 through the fulcrum. When the cross bar 430 contacts the second blocking plate 713, the force can be transmitted to the disk 710 through the limiting cooperation formed by the second blocking plate 713 and the blocking column 714, and the mutual repulsive force of the permanent magnets 310 of the two groups of permanent magnet assemblies is transmitted to the turntable 710 through the straight rod 410, the connecting rod 420 and the cross bar 430, the second blocking plate 713 and the blocking column 714. The above summary: ① During the period when the permanent magnets 310 of the two sets of permanent magnet assemblies are locked by the permanent magnet locking assembly, the cooperation between the telescopic rod 750 and the bending section 751 and the protrusion 731 can untie the turntable 710 and the cross bar 430. After untying, the turntable 710 and the cross bar 430 can move relative to each other, so that the transmission mechanism 400 will not be stuck; ② When the permanent magnets 310 of the two sets of permanent magnet assemblies are not locked by the permanent magnet locking assembly, the limiting cooperation between the bending section 751 and the first blocking plate 712 makes the first blocking plate 712 only rotate in the direction of rotation of the turntable 710, and prevents the first blocking plate 712 from rotating in the direction opposite to the direction of rotation of the turntable 710. The second blocking plate 713 is prevented from rotating in the direction opposite to the rotation direction of the rotating disk 710, so that the rotating disk 710 can drive the cross bar 430 to rotate together; and the limiting cooperation between the blocking column 714 and the second blocking plate 713 makes the second blocking plate 713 rotate only in the direction opposite to the rotation direction of the rotating disk 710, so as to facilitate the relative movement between the rotating disk 710 and the cross bar 430, and prevent the second blocking plate 713 from rotating in the direction of the rotating disk 710. The limiting cooperation between the second blocking plate 713 and the blocking column 714 prevents the cross bar 430 from sliding out in the direction of the rotating disk 710, so that the cross bar 430 can transmit the mutual repulsive force of the permanent magnets 310 of the two sets of permanent magnet assemblies to the rotating disk 710. The above measures can not only transfer the repulsive force between the permanent magnets 310 on both sides to the turntable 710 through the limiting cooperation formed by the blocking column 714 and the second blocking plate 713, but also release the binding between the cross bar 430 and the turntable 710 when the permanent magnet 310 is locked so that the turntable 710 and the cross bar 430 can move relative to each other.The process of the rotating turntable 710 avoiding the obstruction of the cross bar 430 is as follows: when the permanent magnets 310 of the two sets of permanent magnet assemblies are locked and the bent section 751 is disengaged from the limiting cooperation with the first blocking plate 712, the limiting structure composed of the first blocking plate 712 and the second blocking plate 713 and the subsequent multiple limiting structures that rotate with the turntable 710 touch the stationary cross bar 430 in sequence at the position of the protrusion 731, so that the cross bar 430 can pass through the second blocking plate 713 of the first limiting structure and then the first blocking plate 712 in the direction opposite to the rotation of the turntable 710, and then pass through the second blocking plate 713 of the next limiting structure, and then pass through the first blocking plate 712, and so on. The baffle plate 713 and the first baffle plate 712 rotate around the pin accordingly in the direction opposite to the rotation direction of the turntable 710 to avoid the obstacle cross bar 430 blocking the movement path at this time, so that the stationary cross bar 430 does not hinder the rotation of the turntable 710, so that the turntable 710 can operate smoothly; after the permanent magnets 310 of the two groups of permanent magnet assemblies are unlocked, the cross bar 430 catches up with the nearest limiting structure under the mutual repulsive force of the permanent magnets 310 of the two groups of permanent magnet assemblies and binds to the new limiting structure, so that the cross bar 430 is bound to the turntable 710 again and rotates together, bringing the permanent magnets 310 of the two groups of permanent magnet assemblies back to the upper dead center of the action position, so that the permanent magnets 310 of the two groups of permanent magnet assemblies can carry out a cyclic action process.

[0079] Furthermore, in order to make the process of the protrusion 731 contacting and pressing the telescopic rod 750 smoother, the present invention improves the end structure of the telescopic rod 750, and a slope is set at the end of the telescopic rod 750 that contacts the protrusion 731, and the slope is set on the side of the telescopic rod 750 facing the protrusion 731; or a telescopic rod bearing 752 is installed at the end of the telescopic rod 750 that contacts the protrusion 731, and the axial direction of the telescopic rod bearing 752 is perpendicular to the length direction of the telescopic rod 750 and forms a rolling fit when contacting the protrusion 731. Through the above structural improvement of the telescopic rod 750, the process of the protrusion 731 contacting and pressing the end of the telescopic rod 750 is smoother, and it can avoid the protrusion 731 from stagnating due to obstruction when contacting and pressing the end of the telescopic rod 750, so that the retraction action of the telescopic rod 750 is smoother. In addition, the present invention also improves the end structure of the cross bar 430. A cross bar bearing 431 is installed at the end of the cross bar 430, so that the cross bar bearing 431 forms a sliding fit in the annular groove 711, which can effectively reduce the influence of friction resistance during relative movement between the cross bar 430 and the turntable 710, making the relative movement between the turntable 710 and the cross bar 430 smoother after the binding is released, and also reduces the energy loss in this process.

[0080] In order to enable the permanent magnet kinetic energy conversion mechanism 300 and the transmission mechanism 400 on both sides to operate synchronously, a synchronization mechanism is provided in the present invention. The synchronization mechanism includes a synchronization gear 910, an inertia flywheel 920 and a synchronization chain, such as Fig.11 As shown, the synchronous gear 910 and the inertial flywheel 920 are both installed on the rotating shaft 720, and the rotating shaft 720, the synchronous gear 910 and the inertial flywheel 920 rotate synchronously, and the two sets of transmission components 700 realize synchronous rotation through the meshing cooperation of the synchronous chain and the synchronous gear 910. In this system, the permanent magnet kinetic energy conversion mechanism 300 and the transmission mechanism 400 on both sides of the magnetic shielding plate 210 need to act synchronously, otherwise the movement of the permanent magnet 310 in the permanent magnet kinetic energy conversion mechanism 300 on both sides cannot be synchronized. If the permanent magnet on one side approaches the magnetic shielding plate 210 before the permanent magnet on the other side, the permanent magnet 310 on the other side may be difficult to approach the magnetic shielding plate 210 due to the repulsive force of the permanent magnet 310 that arrives first, so that the mutual repulsive force between the permanent magnets 310 cannot be utilized, and the operation of the entire system will also be affected. In addition, under the action of the synchronization mechanism, the two sets of transmission mechanisms 400 operate synchronously, and the torque provided to the outside through the rotating shaft 720 is also increased, and the output power of the entire system can also be improved. The inertial flywheel 920 in the synchronization mechanism is used to maintain the rotation of the turntable 710 by utilizing the inertia of the inertial flywheel 920 after the turntable 710 and the cross bar 430 are untied. It is also used to bring the permanent magnet 310 in the permanent magnet kinetic energy conversion mechanism 300 back to the upper dead center at the lower dead center by utilizing the inertia of the inertial flywheel 920.

[0081] In order to intuitively reflect the energy consumption, friction resistance and conversion efficiency are not considered here. Fig.16As shown, according to the characteristics of the magnet, the kinetic energy converted into by the mutual repulsion between the permanent magnets 310 on both sides, the electric energy consumed by the extraction of the magnetic shielding bodies 240 and 210, and the kinetic energy obtained by the permanent magnets 310 on both sides due to the mutual attraction with the magnetic shielding plate 210 are assumed to be of the same order of magnitude in terms of energy level. For the convenience of discussion, the magnetic shielding cover 240 and the magnetic shielding plate 210 are collectively referred to as the magnetic shielding body. The kinetic energy generated by the mutual attraction between the permanent magnets 310 on both sides and the magnetic shielding plate 210 is assumed to be A1. The generation of energy A1 does not require the consumption of external energy, but utilizes the internal energy of the permanent magnets 310. According to the characteristics of the magnet and the law of conservation of energy, the energy consumption value of the extraction of the magnetic shielding body is equivalent to the kinetic energy value obtained by the permanent magnets 310 on both sides. Considering the shielding efficiency and magnetic leakage of the magnetic shielding body, it is assumed that the magnetic shielding body and the energy dissipators such as the thyristor and the electromagnet 810 are extracted and inserted at one time. The energy consumption of the energy-consuming device is A, then A>A1, and this part of the energy consumption A comes from the consumption of external energy; when the magnetic shielding body is completely pulled out, since the present invention is followed by the process of mutual repulsion between the permanent magnets 310 on both sides, it can be assumed that the kinetic energy generated by the mutual repulsion between the permanent magnets 310 on both sides is converted into electrical energy A2, and A2>A1, then A>A2>A1; therefore, after the kinetic energy A1 obtained by the permanent magnets 310 on both sides is converted into electrical energy to compensate for the energy consumption A of the energy-consuming device, the external energy consumed by the reciprocating motion of the permanent magnets 310 on both sides of the present invention is A-A1, rather than the energy consumption A. The existing electromechanical system energy consumption distribution is: if the external input energy A to the system, it will be in the form of energy A2 after the system energy conversion. However, since the present invention simultaneously utilizes the attraction and repulsion of the permanent magnet 310, the kinetic energy A1 generated by the mutual attraction between the permanent magnets 310 on both sides and the magnetic shielding plate 210 is picked up to compensate for the consumption of the external energy A. Therefore, under the condition of the same energy form A2, the external input energy consumed by the present invention is A-A1, rather than the input energy A, or, under the condition of the same external energy A input, the energy form generated by the mechanism of the present invention is A1+A2, rather than the energy form A2. Although the above analysis is relatively superficial, it can be seen that the reciprocating motion system based on the magnetic shielding and the repulsion of the permanent magnet disclosed in the present invention can achieve the same output with a smaller input.

[0082] Compared with the existing stroke-type gas engine reciprocating mechanism, the reciprocating motion system based on magnetic shielding and the mutual repulsion of permanent magnets disclosed in the present invention does not require fuel as power, but relies on the mutual repulsion between permanent magnets as power, and is assisted in operation by external energy. The reciprocating motion mechanism of the present invention does not have the intake, exhaust and compression strokes of the stroke-type gas engine reciprocating motion mechanism during operation. Although the attraction process between the permanent magnet and the magnetic shielding plate in the present invention is similar to the compression stroke of the stroke-type gas engine reciprocating mechanism, the stroke-type gas engine reciprocating motion mechanism compresses the air through the piston, while the present invention only requires the permanent magnet to reach the action position without compressing the air. In view of the fact that the operating mechanism of the present invention does not need to generate power through fuel combustion, the system of the present invention does not have reactive consumption of energy by heat. The operating efficiency of the present invention is higher and more energy-saving.

Claims

1. A reciprocating motion system based on magnetic shielding and the mutual repulsion of permanent magnets, characterized in that: It comprises a machine base (100), a magnetic shielding mechanism (200), a permanent magnet kinetic energy conversion mechanism (300), a transmission mechanism (400), a speed regulating mechanism and an energy storage device (500), wherein the number of the permanent magnet kinetic energy conversion mechanism (300) and the transmission mechanism (400) are both two groups, and the permanent magnet kinetic energy conversion mechanism (300) and the transmission mechanism (400) correspond one to one; The magnetic shielding mechanism (200) comprises a magnetic shielding plate (210), an ascending drive mechanism and a descending drive mechanism, the ascending drive mechanism and the descending drive mechanism are both electrically connected to the energy storage device (500), the ascending drive mechanism comprises an ascending drive motor (220), an ascending control circuit and an ascending transmission component, the descending drive mechanism comprises a descending drive motor (230), a descending control circuit and a descending transmission component, the magnetic shielding plate (210) is made of ferromagnetic metal material, the magnetic shielding plate (210) is in transmission cooperation with the ascending transmission component and the descending transmission component, the magnetic shielding plate (210) can perform reciprocating lifting motion in the vertical direction under the control of the ascending drive mechanism and the descending drive mechanism, and the ascending control mechanism and the descending control mechanism are both electrically connected to the speed regulating mechanism; The permanent magnet kinetic energy conversion mechanism (300) comprises a permanent magnet assembly, wherein the permanent magnet assembly comprises a permanent magnet (310), wherein the permanent magnets (310) in two groups of permanent magnet assemblies are arranged opposite to each other with the same magnetic poles, and the permanent magnets (310) in the two groups of permanent magnet assemblies can synchronously perform reciprocating linear motion in the horizontal direction in opposite directions under the action of the attraction of the magnetic shielding plate (210) on the permanent magnets (310) and the mutual repulsion between the permanent magnets (310) in the two groups of permanent magnet assemblies; when the magnetic shielding plate (210) descends to between the two groups of permanent magnet assemblies, the permanent magnets (310) in the two groups of permanent magnet assemblies move toward the magnetic shielding plate (210) under the action of the attraction of the magnetic shielding plate (210); when the magnetic shielding plate (210) rises to be separated from the two groups of permanent magnet assemblies, the two groups of permanent magnet assemblies move to the magnetic shielding plate (210) under the action of the attraction of the magnetic shielding plate (210); The permanent magnets (310) of the two permanent magnet assemblies move away from the magnetic shielding plate (210) under the action of the mutual repulsive force; the permanent magnet assembly also includes a sleeve (320), a first electromagnetic coil (330) and a second electromagnetic coil (340); the sleeves (320) of the two permanent magnet assemblies are coaxially arranged on both sides of the magnetic shielding plate (210), the sleeve (320) is fixed on the machine base (100), the permanent magnet (310) is arranged in the sleeve (320) and slidably cooperates with the inner wall of the sleeve (320), the first electromagnetic coil (330) and the second electromagnetic coil (340) are respectively wound around two ends of the sleeve (320), and the first electromagnetic coil (330) and the second electromagnetic coil (340) are electrically connected to the energy storage device (500); The transmission mechanism (400) comprises a straight rod (410), a connecting rod (420), a cross rod (430) and two groups of transmission components (700); the straight rod (410) of the transmission mechanism (400) is fixedly connected to the permanent magnet (310) of the corresponding permanent magnet kinetic energy conversion mechanism (300); one end of the straight rod (410) not connected to the corresponding permanent magnet (310) is rotatably connected to the connecting rod (420); the cross rod (430) is arranged perpendicular to the connecting rod (420); one end of the connecting rod (420) not connected to the straight rod (410) is rotatably connected to the middle part of the cross rod (430); and both ends of the cross rod (430) are respectively connected to the two groups of transmission components (700); The transmission assembly (700) comprises a rotating disk (710), a rotating shaft (720) and a supporting plate (730); the two ends of the crossbar (430) are respectively eccentrically matched with the rotating disks (710) in the two groups of transmission assemblies (700); the rotating shaft (720) is fixedly connected to the center of the corresponding rotating disk (710); the rotating shaft (720) is rotationally matched with the supporting plate (730); the supporting plate (730) is fixed on the machine base (100); and the rotating shaft (720) of one group of transmission assemblies (700) is transmission-matched with the external motor (600).

2. The reciprocating motion system based on magnetic shielding and permanent magnet mutual repulsion as claimed in claim 1, characterized in that: The magnetic shielding plate (210) is composed of a transmission section (211), a first magnetic shielding section (212) and a second magnetic shielding section (213) connected in sequence; the transmission section (211) forms a transmission match with the ascending drive mechanism and the descending drive mechanism; the thickness of the first magnetic shielding section (212) is greater than the thickness of the second magnetic shielding section (213); the first magnetic shielding section (212) is located between the transmission section (211) and the second magnetic shielding section (213); there is an arc transition between the first magnetic shielding section (212) and the second magnetic shielding section (213); the second magnetic shielding section (213) is a section away from the ascending drive mechanism and the descending drive mechanism; the magnetic shielding plate (210) is an iron plate, or a composite metal plate composed of a plurality of silicon steel plates or a plurality of Permalloy plates stacked together.

3. The reciprocating motion system based on magnetic shielding and permanent magnet mutual repulsion as claimed in claim 2, characterized in that: The invention also comprises magnetic shielding covers (240) corresponding to the two groups of permanent magnet assemblies one by one. The two magnetic shielding covers (240) are respectively fixed on both sides of the magnetic shielding plate (210) and have openings opposite to the corresponding permanent magnet assemblies. When the magnetic shielding plate (210) is not raised to be separated from the permanent magnet assemblies, the permanent magnet assemblies are within the magnetic shielding range of the corresponding magnetic shielding covers (240) and the magnetic shielding plate (210); the surface of the magnetic shielding covers (240) is an arc surface, and a plurality of ventilation holes are provided on the arc surface of the magnetic shielding covers (240); the magnetic shielding covers (240) and the magnetic shielding plate (210) are an integrated structure.

4. The reciprocating motion system based on magnetic shielding and permanent magnet mutual repulsion as claimed in claim 1, characterized in that: The permanent magnet assembly further comprises a protective cover (350) wrapped around the periphery of the permanent magnet (310); the material of the protective cover (350) is resin or carbon fiber; the protective cover (350) is slidably matched with the inner wall surface of the sleeve (320).

5. The reciprocating motion system based on magnetic shielding and permanent magnet mutual repulsion as claimed in claim 4, characterized in that: The protective sleeve (350) is radially provided with two protruding structures, namely a first contact and pressure portion (311) and a second contact and pressure portion (312); the sleeve (320) is provided with a through groove through which the first contact and pressure portion (311) and the second contact and pressure portion (312) can pass and move axially; the outer side of the sleeve (320) is provided with a first power switch (361), a second power switch (362) and a third power switch (363) fixed on the machine base (100); the first power switch (361) and the second power switch (362) are located on the first contact and pressure portion (311) facing the magnetic shielding The magnetic shielding plate (210) is located on a path where the second power switch (362) is closer to the magnetic shielding plate (210) than the first power switch (361), and the third power switch (363) is located on a path where the second contact and pressure portion (312) moves away from the magnetic shielding plate (210); the first power switch (361), the second power switch (362) and the third power switch (363) are all normally open switches; the magnetic shielding plate (210) is provided with a stop contact and pressure portion (214), and the outer side of the magnetic shielding plate (210) is provided with a first contact and pressure portion fixed to the base (100) An upper stop switch (251), a second upper stop switch (252) and a lower stop switch (253), wherein the first upper stop switch (251), the second upper stop switch (252) and the lower stop switch (253) are sequentially arranged from top to bottom on the outer side of the magnetic shielding plate (210) and are located on the lifting and lowering path of the stop contact and pressure portion (214); the first upper stop switch (251) is a single-pole double-throw switch including a first switch and a second switch, the first switch of the first upper stop switch (251) is a normally closed switch, and the second switch of the first upper stop switch (251) is a normally open switch ; The second upper stop switch (252) and the lower stop switch (253) are both normally closed switches; the first switch of the first upper stop switch (251) and the second upper stop switch (252) control the on-off of the ascending control circuit, and the lower stop switch (253) controls the on-off of the descending control circuit; when the first power switch (361) and the second power switch (362) are turned on, the ascending control circuit is triggered to be turned on and the ascending drive motor (220) is started to work; when the third power switch (363) is turned on, the descending control circuit is triggered to be turned on and the descending drive motor (230) is started to work; When the first contact and pressure portion (311) contacts the first power switch (361), the first power switch (361) is turned on, the ascending control circuit is turned on and the ascending drive motor (220) is started, and when the magnetic shielding plate (210) rises to make the stop contact and pressure portion (214) contact the second upper stop switch (252), the second upper stop switch (252) is disconnected, the ascending control circuit is disconnected, the first contact and pressure portion (311) is separated from the first power switch (361), the first power switch (361) is disconnected and restored to a normally open state, the stop contact and pressure portion (214) is separated from the second upper stop switch (252), and the second upper stop switch (252) is restored to a normally closed state; When the first contact and pressure portion (311) contacts the second power switch (362), the second power switch (362) is turned on, the ascending control circuit is turned on and the ascending drive motor (220) is started; when the magnetic shielding plate (210) rises to make the stop contact and pressure portion (214) contact the first upper stop switch (251), the first switch of the first upper stop switch (251) is disconnected, the ascending control circuit is disconnected, and the second switch of the first upper stop switch (251) is turned on; when the first contact and pressure portion (311) is separated from the second power switch (362), the second power switch (362) is disconnected and restored to a normally open state; when the stop contact and pressure portion (215) is separated from the first upper stop switch (251), the first switch of the first upper stop switch (251) is restored to a normally closed state, and the second switch of the first upper stop switch (251) is restored to a normally open state; When the second pressing part (312) presses the third power switch (363), the third power switch (363) is turned on, the descending control circuit is turned on and the descending drive motor (230) is started; when the magnetic shielding plate (210) descends to between the two permanent magnet components so that the stop pressing part (214) presses the lower stop switch (253), the lower stop switch (253) is disconnected and the descending control circuit is disconnected; the second pressing part (312) is separated from the third power switch (363), and the third power switch (363) returns to a normally open state; the stop pressing part (214) is separated from the lower stop switch (253), and the lower stop switch (253) returns to a normally closed state.

6. The reciprocating motion system based on magnetic shielding and permanent magnet mutual repulsion as claimed in claim 5, characterized in that: The protective sleeve (350) is also provided with a third radially protruding protrusion structure as a third contact-pressing portion (313), and the machine base (100) is also provided with a magnetic locking assembly adapted to the third contact-pressing portion (313); the magnetic locking assembly comprises an electromagnet (810), a locking switch (820), a spring lock (830), a locking tongue (840), a tongue root (850), a deceleration spring (860) and an electromagnet control switch (870); the electromagnet (810), the second switch of the first upper stop switch (251) The first upper stop switch (251) and the electromagnet control switch (870) are connected in series to the power supply circuit of the electromagnet (810); the second switch of the first upper stop switch (251) controls the on and off of the electromagnet (810); the locking switch (820) is connected in series to the ascending control circuit; the locking tongue (840) and the tongue root (850) are respectively fixed at the upper and lower ends of the spring lock (830); the locking switch (820) is arranged between the tongue root (850) and the electromagnet (810); the third contact and pressure portion (313) moves toward the magnetic shielding plate along with the permanent magnet (310) During the movement of (210), the third contact and pressure portion (313) sequentially contacts and presses the electromagnet control switch (870) and the lock tongue (840), the electromagnet control switch (870) is turned on, the lock tongue (840) retracts and drives the tongue root (850) to contact and press the locking switch (820); after the electromagnet (810) is energized, the lock tongue (840) is adsorbed and retracted, and when the electromagnet (810) is de-energized, the lock tongue (840) rebounds and resets and drives the tongue root (850) to separate from the locking switch (820), and the locking switch (820) returns to a normally closed state. state; the deceleration spring (860) is fixed on the machine base (100) and is located on the path where the third contact and pressure portion (313) moves toward the magnetic shielding plate (210); the third contact and pressure portion (313) moves with the permanent magnet (310) to contact the deceleration spring (860) and can compress the deceleration spring (860); the lock tongue (840) is located on the path where the third contact and pressure portion (313) moves toward the deceleration spring (860); the electromagnet control switch (870) is an on-off holding switch, and the locking switch (820) is a normally closed switch.

7. The reciprocating motion system based on magnetic shielding and permanent magnet mutual repulsion as claimed in claim 5, characterized in that: The permanent magnet kinetic energy conversion mechanism (300) further comprises a first electromagnetic switch (371) and a second electromagnetic switch (372); the first electromagnetic switch (371) is electrically connected to the first electromagnetic coil (330), and the second electromagnetic switch (372) is electrically connected to the second electromagnetic coil (340); both the first electromagnetic switch (371) and the second electromagnetic switch (372) are normally open switches; the first electromagnetic coil (330) is wound around one end of the sleeve (320) close to the magnetic shielding plate (210), and the second electromagnetic coil (340) is electrically connected to the second electromagnetic coil (340); 0) is wound around an end of the sleeve (320) away from the magnetic shielding plate (210); the first electromagnetic switch (371) is located on a path where the first contact and pressure portion (311) moves toward the magnetic shielding plate (210), and the second electromagnetic switch (372) is located on a path where the second contact and pressure portion (312) moves away from the magnetic shielding plate (210); the first switch of the first upper stop switch (251) is connected in series to the circuit of the first electromagnetic coil (330), and the lower stop switch (253) is connected in series to the circuit of the second electromagnetic coil (340).

8. The reciprocating motion system based on magnetic shielding and permanent magnet mutual repulsion as claimed in claim 2, characterized in that: The inner side of the rotating disk (710) in the transmission assembly (700) is provided with an annular groove (711) which is concentric with the rotating disk (710), and the two ends of the cross bar (430) respectively form a sliding fit with the annular grooves (711) of the two rotating disks (710); the outer side of the annular groove (711) is also provided with a sleeve (740) which penetrates the rotating disk (710) in the thickness direction of the rotating disk (710), and the sleeve (740) is provided with a telescopic rod (750) which can move axially and passes through the sleeve (740), and the two ends of the telescopic rod (750) respectively extend to the inner and outer sides of the rotating disk (710), and the telescopic rod (750) and the sleeve (740) are connected. The telescopic rod (750) and the cross bar (430) are arranged on the same side and one end thereof is bent toward the central axis of the rotating disk (710) to form a bent section (751). The other end of the telescopic rod (750) passes through a return spring (760) vertically arranged on the rotating disk (710). One end of the return spring (760) is fixedly connected to the rotating disk (710), and the other end of the return spring (760) is connected to the telescopic rod (750). The rotating disk (710) is also rotatably provided with a first stop plate (712) and a second stop plate (713). One end of the first stop plate (712) and the second stop plate (713) are connected to the rotating disk (710). The end of the support plate (730) is located on the path where the cross bar (430) slides along the annular groove (711); a blocking column (714) is fixedly arranged on the rotating disk (710); the bending section (751) and the blocking column (714) are located between the first blocking plate (712) and the second blocking plate (713); the bending section (751) and the other end of the first blocking plate (712) form a limiting fit; the blocking column (714) and the other end of the second blocking plate (713) form a limiting fit; a protrusion (731) is vertically fixed on one surface of the support plate (730) close to the rotating disk (710); the protrusion (731) is located on the telescopic rod (750) and the protrusion (731) is located on the rotating disk (71 ... On the rotating path of the rotating disk (710), when the telescopic rod (750) rotates with the rotating disk (710) until it contacts the protruding portion (731), the protruding portion (731) contacts and presses the telescopic rod (750), so that the telescopic rod (750) extends in a direction away from the supporting plate (730) and compresses the reset spring (760), and at the same time drives the bent section (751) to break away from the limiting fit with the first blocking plate (712); when the protruding portion (731) breaks away from the contact with the telescopic rod (750), the telescopic rod (750) returns to its original position under the action of the reset spring (760), and the bent section (751) resumes the limiting fit with the first blocking plate (712).

9. The reciprocating motion system based on magnetic shielding and permanent magnet mutual repulsion as claimed in claim 8, characterized in that: The invention also includes a cross bar bearing (431) fixed to the end of the cross bar (430), the cross bar bearing (431) extending into the annular groove (711) to form a sliding fit; the end of the telescopic rod (750) in contact with the protruding portion (731) is provided with a slope or a telescopic rod bearing (752), the slope is provided on the side of the telescopic rod (750) facing the protruding portion (731), the axial direction of the telescopic rod bearing (752) is perpendicular to the length direction of the telescopic rod (750), and a rolling fit is formed when in contact with the protruding portion (731).

10. The reciprocating motion system based on magnetic shielding and permanent magnet mutual repulsion as claimed in claim 8, characterized in that: The rotating shafts (720) of the two sets of transmission assemblies (700) rotate synchronously through a synchronization mechanism, and the synchronization mechanism includes a synchronization gear (910) fixed on the rotating shaft (720), an inertia flywheel (920), and a synchronization chain meshing with the synchronization gear (910).

Images