CN112233534A - Solar system astronomical teaching aid device based on magnetic suspension - Google Patents

Abstract

The invention discloses a solar system astronomical teaching aid device based on magnetic suspension. The invention comprises a supporting seat, a circular table, a plurality of planetary model operation structures, a plurality of magnetic suspension bases, small balls and suspension magnets, wherein the supporting seat is fixedly connected with the circle center position of the circular table, one of the magnetic suspension bases is fixed at one end of the supporting seat close to the circular table, the other magnetic suspension bases are positioned in the planetary model operation structures, the magnetic suspension bases correspond to the small balls with the same number, the suspension magnets are arranged in the small balls, the suspension magnets and the magnetic suspension bases are homopolar and opposite, the small balls are suspended above the center position of the magnetic suspension bases, the magnetic suspension bases are positioned below the circular table, the small balls are positioned above the circular table, and the planetary model operation structures. The invention simulates the autorotation of eight planets in the solar system and simultaneously rotates around the sun through the magnetic suspension technology, so that the teaching process is clearer and more vivid and the magnetic suspension technology can be popularized.

Description

Solar system astronomical teaching aid device based on magnetic suspension

Technical Field

The invention relates to the technical field of magnetic suspension, in particular to a solar system astronomy teaching aid device based on magnetic suspension.

Background

The 'magnetic suspension' originally originated from europe, the system of magnetic suspension technology, which is composed of rotor, sensor, controller and actuator 4, wherein the actuator includes two parts of electromagnet and power amplifier. Assuming that the rotor is displaced from its reference position by a downward disturbance at the reference position, the sensor detects the displacement of the rotor from the reference position, the microprocessor as a controller converts the detected displacement into a control signal, which is then converted by a power amplifier into a control current, which generates a magnetic force in the actuator magnet, thereby driving the rotor back to its original equilibrium position. Therefore, the rotor can be always in a stable equilibrium state whether the rotor is disturbed downward or upward. The magnetic suspension technology is a relatively mature technology in the current suspension technology. Human perception of the solar system can be roughly divided into five stages: the universe, the orbicularis, the Earth, the heart, the universe, and the universe, the relativity and space-time can be varied. Although people know the solar system comprehensively and objectively at present, most people do not know the whole operation of the solar system, the production of related teaching aid products is extremely narrow and cannot become an organic whole, even most of requirements need to collect data manually, and the return rate satisfaction degree of related products is low.

Disclosure of Invention

The invention aims to provide a solar system astronomical teaching aid device based on magnetic suspension to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: a solar system astronomical teaching aid device based on magnetic suspension. The device comprises a supporting seat, a round platform, a plurality of planet model operation structures, a plurality of magnetic suspension bases, a small ball and a suspension magnet, wherein the supporting seat is fixedly connected with the circle center position of the round platform, one of the magnetic suspension bases is fixed at one end of the supporting seat close to the round platform, the other magnetic suspension bases are positioned in the planet model operation structures, the magnetic suspension bases correspond to the small balls with the same number, the suspension magnet is arranged in each small ball, the suspension magnet is homopolarly opposite to the magnetic suspension base, the small ball is suspended above the central position of the magnetic suspension base, the magnetic suspension base is positioned below the round platform, the small ball is positioned above the round platform, the planet model operation structures do circular motion around the axis of the supporting seat, the magnetic suspension base on the supporting seat provides buoyancy, so that the small ball at the center of the round platform, simulating the sun with the beads; the small ball on the planet model operation structure simulates a planet.

Furthermore, the planet model operation structure comprises a magnetic suspension base, wheels, a chassis, a battery, a coil magnet and a controlled system, the wheels are fixed around the chassis, the chassis is fixedly connected with the magnetic suspension base, the battery is fixed on the chassis, the controlled system is electrically connected with the battery, the controlled system is fixed on the chassis, a battery jar is arranged on the chassis, the battery is arranged in the battery jar, the coil magnet is fixed on the chassis of the trolley, the magnetic suspension base on the planet model operation structure enables the small balls to float and move along with the trolley, the small balls simulate planets in a solar system, the controlled system arranged on the trolley controls the trolley to do circular motion along the axis of the supporting seat, and the small balls can do circular motion around the small balls in the middle of the circular truncated cone to represent that the planets move around the sun, the coil magnet is arranged on one side of the base plate, the magnetic poles of the coil magnet and one end, close to the suspension magnet, of the coil magnet are the same, an included angle can be formed between one side of the suspension magnet and the horizontal position through the coil magnet, and the included angle can represent the included angle between the equatorial plane of the planet and the revolution plane of the planet, so that the running process of the solar system planet is presented more truly.

Further, the magnetic suspension base includes the base, and the coil, hall altitude sensor, hall position sensor, annular magnet fixes on the base, four coils are placed to ring position symmetry all around in the middle of the annular magnet, four coil intermediate positions are equipped with hall altitude sensor and hall position sensor, the coil all with hall altitude sensor is connected with hall position sensor electricity, and hall altitude sensor and hall position sensor can the position of real-time supervision bobble, if the bobble position takes place to squint, and hall altitude sensor and hall position sensor change the coil magnetic force size through control coil electric current size, draw the bobble back initial position, have guaranteed that the bobble can not drop.

Furthermore, the small balls are all provided with autorotation structures, each autorotation structure comprises a rotating shaft, a first magnet, a second magnet, a first gear, a second gear, a wire winding, an electric brush, a fixed power supply and a switch component, the small balls are hollow structures, the rotating shaft, the first magnet, the second magnet, the first gear, the second gear, the wire winding, the electric brush and the fixed power supply component are all arranged inside the small balls, two ends of the rotating shaft are rotatably connected with the small balls, the axis of the rotating shaft is perpendicular to the diameter of the cross section of the suspended magnet, the axis of the rotating shaft is intersected with the circle center of the cross section of the suspended magnet, the first gear is fixedly sleeved at the midpoint position of the length direction of the rotating shaft, the second gear is meshed with the first gear, the first magnet and the second magnet are fixed on the inner wall of the upper hemisphere of the small balls, and the first magnet and the second magnet are symmetrically arranged by taking the axis of the, the magnetic poles of the sides, close to each other, of the first magnet and the second magnet are opposite, the side edge of the outer circle of the suspension magnet is fixedly connected with the inner surface of the small ball, the suspension magnet is of a circular ring structure, gear teeth are arranged on the surface of the inner circle of the suspension magnet, the second gear is meshed with the gear teeth, a wire winding is fixed on the rotating shaft, the axis of the wire winding is perpendicular to and intersected with the axis of the rotating shaft, the wire winding is located at the position where the first magnet is connected with the second magnet, wires at the two ends of the wire winding are in contact with the electric brush, the electric brush is electrically connected with the fixed power supply, a switch is arranged on a loop formed by the power supply and the wire winding, the switch is arranged on the surface of the small ball, and is electrified after the switch is communicated with the circuit, and the first gear and the second gear are arranged between the suspension, at the moment, the electrified lead winding can drive the rotating shaft to rotate, and the rotating shaft enables the suspension magnet to drive the small balls to rotate reversely through the gear, so that the planet is simulated to rotate in the solar system.

Furthermore, the bobble with pivot contact position is equipped with the recess, the pivot with the bobble is connected for the bearing, the outer lane of bearing is fixed in the recess, the fixed cover of bearing inner circle is established in the pivot, set up the bearing and can reduce the frictional force between pivot and the bobble, increase the life of bobble and pivot.

Compared with the prior art, the invention has the following beneficial effects: the invention simulates the autorotation of eight planets in the solar system and simultaneously rotates around the sun through the magnetic suspension technology, so that the teaching process is clearer and more vivid through popularization in teaching practice, the magnetic suspension technology can be popularized, the magnetic suspension market is expanded, the magnetic suspension is enabled to enter the life of people, and the value of the magnetic suspension technology is realized. And the magnetic suspension teaching aid system is mixed with a plurality of subjects, so that the interest of students in paying attention to life and favoring science can be stimulated to the greatest extent.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the planetary model operating configuration of the present invention;

FIG. 4 is a schematic top view of the magnetically suspended base of the present invention;

FIG. 5 is a schematic front view of the pellet construction of the present invention;

FIG. 6 is a schematic view of the ball-in-ball gear engagement of the present invention;

in the figure: 1-a support seat; 2, a circular truncated cone; 3, a planetary model operation structure; 31-a wheel; 32-a chassis; 321-a battery jar; 33-a battery; 34-a coil magnet; 35-a controlled system; 4-magnetic suspension base; 41-a base; 42-a coil; 43-hall height sensor; 44-hall position sensors; 45-ring magnet; 5-a pellet; 50-a rotating shaft; 51-magnet number one; 52-magnet number two; 53-first gear; 54-gear No. two; 55-a wire winding; 56-electric brush; 57-fixed power supply; 58-switch; 59-grooves; 591-a bearing; 6-a suspension magnet; 61-gear teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides the following technical solutions: a solar system astronomical teaching aid device based on magnetic suspension. The device comprises a supporting seat 1, a circular table 2, a plurality of planetary model operation structures 3, a plurality of magnetic suspension bases 4, a small ball 5 and a suspension magnet 6, wherein the supporting seat 1 is fixedly connected with the circle center position of the circular table 2, one of the magnetic suspension bases 4 is fixed at one end of the supporting seat 1 close to the circular table 2, the other magnetic suspension bases 4 are positioned in the planetary model operation structures 3, the magnetic suspension bases 4 correspond to the small balls 5 with the same quantity, the suspension magnet 6 is arranged in each small ball 5, the suspension magnet 6 is homopolar and opposite to the magnetic suspension base 4, the small ball 5 is suspended above the central position of the magnetic suspension base 4, the magnetic suspension base 4 is positioned below the circular table 2, the small ball 5 is positioned above the circular table 2, and the planetary model operation structures 3 do circular motion around the axis of the supporting seat 1, a magnetic suspension base 4 on the supporting seat 1 provides buoyancy, so that a small ball 5 at the center of the disc floats, and the small ball 5 is used for simulating the sun; the balls 5 on the planetary model operating structure 3 simulate planets. The planet model operation structure 3 comprises a magnetic suspension base 4, wheels 31, a chassis 32, a battery 33, a coil magnet 34 and a controlled system 35, wherein the wheels 31 are fixed around the chassis 32, the chassis 32 is fixedly connected with the magnetic suspension base 4, the battery is fixed on the chassis 32, the controlled system 35 is electrically connected with the battery 33, the controlled system 35 is fixed on the chassis 32, a battery groove 321 is arranged on the chassis 32, the battery 33 is arranged in the battery groove 321, the coil magnet 34 is fixed on the chassis 32, the magnetic suspension base 4 on the planet model operation structure 3 enables a small ball 5 to float and move along with the planet model operation structure 3, the small ball 5 is used for simulating planets in a solar system, the controlled system 35 arranged on the planet model operation structure 3 controls the planet model operation structure 3 to do circular motion along the axis of the support base 1, the small ball 5 can do circular motion around the small ball 5 in the middle of the circular truncated cone 2, so that the planet can move around the sun, a coil magnet 34 is arranged on one side of the chassis 32, the magnetic poles of the coil magnet 34 and one end of the suspension magnet 6 close to the coil magnet are the same, the suspension magnet 6 horizontally suspends right above the magnetic suspension base 4, after the coil magnet 34 is electrified, coil magnet 34 will give an upward force to levitating magnet 6, and coil magnet 34 will make the side of levitating magnet 6 form an angle with the horizontal, the included angle can represent the included angle between the equator plane of the planet and the revolution plane of the planet, namely the ecliptic plane, the included angle between the equator plane of each planet and the ecliptic plane is different, and the magnitude of the upward force can be controlled by controlling the current magnitude of the coil magnet 34, so that the running process of the solar system planet can be presented more truly. The magnetic suspension base 4 comprises a base 41, coils 42, a Hall height sensor 43, a Hall position sensor 44 and an annular magnet 45, wherein the annular magnet 45 is fixed on the base 41, four coils 42 are symmetrically arranged around the position of a circular ring in the middle of the annular magnet 45, the Hall height sensor 43 and the Hall position sensor 44 are arranged in the middle of the four coils 42, the coils 42 are electrically connected with the Hall height sensor 43 and the Hall position sensor 44, the Hall height sensor 43 and the Hall position sensor 44 can monitor the position of the small ball 5 in real time, if the position of the small ball 5 deviates, the Hall height sensor 43 and the Hall position sensor 44 change the magnetic force of the coils 42 by controlling the current of the coils 42, and if the small ball 5 deviates to the right in the operation process, the Hall position sensor 44 controls the two coils 42 on the right to increase the current, the magnetic force of the small ball 5 is correspondingly increased, the small ball 5 is pushed back to the position before the deviation, any deviation in the horizontal direction pulls the small ball 5 back to the initial position by the method, the small ball 5 is ensured not to deviate in the horizontal direction, if the small ball 5 is deviated downwards, at this time, the hall height sensor 43 controls the four coils 42 to increase the current at the same time, the magnetic force of the coils 42 is increased, the coils 42 are opposite to the same poles of the levitation magnet 6, the repulsive force is increased, the small ball 5 is pushed back to the initial position, if the small ball 5 deviates upwards, the Hall height sensor 43 controls the four coils 42 to reduce the current at the same time, the small ball 5 falls down by means of the gravity of the small ball 5 until rebalancing, the coils 42 mainly function to adjust the position of the small ball 5, and the annular magnet 45 mainly provides the magnetic force for suspending the small ball 5, so that the stable suspension of the small ball 5 on the magnetic suspension base 4 can be achieved by matching the annular magnet 45 with the coils 42 at the four positions. The small balls 5 are all provided with a rotation structure, the rotation structure comprises a rotating shaft 50, a first magnet 51, a second magnet 52, a first gear 53, a second gear 54, a lead winding 55, an electric brush 56, a fixed power supply 57 and a switch 58, the small balls 5 are of a hollow structure, the rotating shaft 50, the first magnet 51, the second magnet 52, the first gear 53, the second gear 54, the lead winding 55, the electric brush 56 and the fixed power supply 57 are all arranged in the small balls 5, two ends of the rotating shaft 50 are rotatably connected with the small balls 5, the axial line of the rotating shaft 50 is perpendicular to the diameter of the cross section of the suspended magnet 6, the axial line of the rotating shaft 50 is intersected with the circle center of the cross section of the suspended magnet 6, the first gear 53 is fixedly sleeved at the midpoint position of the length direction of the rotating shaft 50, the second gear 54 is meshed with the first gear 53, the first magnet 51 and the second magnet 52 are fixed on the inner wall of the upper half ball of the small balls, the first magnet 51 and the second magnet 52 are symmetrically arranged by taking the axis of the rotating shaft 50 as a symmetry axis, one side of the first magnet 51, which is close to the second magnet 52, is mutually attracted, the outer circle side of the suspension magnet 6 is fixedly connected with the inner surface of the small ball 5, the suspension magnet 6 is of a circular ring structure, the inner circle surface of the suspension magnet 6 is provided with gear teeth 61, the second gear 54 is meshed with the gear teeth 61, the rotating shaft 50 is fixedly provided with a wire winding 55, the axis of the wire winding 55 is vertical to and intersected with the axis of the rotating shaft 50, the wire winding 55 is positioned at the connecting line position of the first magnet 51 and the second magnet 52, wires at the two ends of the wire winding 55 are in contact with the electric brush 56, the electric brush 56 is electrically connected with the fixed power supply 57, a switch 58 is arranged on a loop formed by the fixed power supply 57 and the wire winding 55, and the switch 58 is arranged on, when the switch 58 is connected with the circuit, the wire winding 55 is electrified, the wire winding 55 is arranged between the first magnet 51 and the second magnet 52, the first gear 53 and the second gear 54 are arranged between the suspension magnet 6 and the rotating shaft 50, so that the rotation directions of the suspension magnet 6 and the small ball 5 are opposite, the electrified wire winding 55 drives the rotating shaft 50 to rotate, and the rotating shaft 50 enables the suspension magnet 6 to drive the small ball 5 to rotate reversely through the gears, so that the rotation of the planet in the solar system is simulated. The contact position of the small ball 5 and the rotating shaft 50 is provided with a groove 59, the rotating shaft 50 and the small ball 5 are connected through a bearing 591, an outer ring of the bearing 591 is fixed in the groove 59, an inner ring of the bearing 591 is fixedly sleeved on the rotating shaft 50, and the bearing 591 is arranged to reduce the friction force between the rotating shaft 50 and the small ball 5 and prolong the service life of the small ball 5 and the rotating shaft 50.

The sun system has eight planets, the included angle between the ecliptic plane and the equatorial plane of each planet is different, the rotation speed of each planet is also different, and the rotation period of each planet around the sun is different. The eight planetary model operation structures 3 are respectively named with labels, the eight planetary model operation structures 3 are arranged according to the arrangement mode of eight planets in sequence, and the controlled system 35 of each planetary model operation structure 3 is arranged, so that the eight planetary model operation structures 3 can be reduced in an equal proportion according to the operation speed of the eight planets, and the operation tracks of the eight planetary model operation structures 3 are arranged. According to the fact that the actual size of eight planets is reduced in an equal proportion, SolidWorks software is used for 3D printing to manufacture small balls 5 meeting requirements, a rotating shaft 50, a first magnet 51, a second magnet 52, a first gear 53, a second gear 54, a lead winding 55, an electric brush 56, a fixed power supply 57 and a switch 58 are installed in each small ball 5 according to requirements, a magnetic suspension base 4 is installed on a base plate 32 of each planet model operation structure 3, the small balls 5 are lightly placed right above a magnetic suspension base 4, the coil current on the magnetic suspension base 4 is adjusted to enable each small ball 5 to stably float at a certain height, a coil magnet 34 on the base plate 32 of the planet model operation structure 3 is adjusted to be in position, the magnetic pole of one end, close to each small ball 5, of the magnetic pole is the same as the magnetic pole of one end, close to the magnetic suspension base 4, of a suspension magnet 6 in each small ball 5, and the angle of the coil magnet, so that it faces the side of the levitating magnet 6. The suspension magnet 6 is in a balanced state, the switch 58 of the coil magnet 34 is turned on, the coil magnet 34 and the suspension magnet 6 repel each other, the coil magnet 34 is opposite to one side of the suspension magnet 6, one side of the suspension magnet 6 tilts, the hall height sensor 43 and the hall position sensor 44 are used for adjusting, the suspension magnet 6 can be suspended right above the magnetic suspension base 4 at a certain inclination angle, the suspension magnet 6 is arranged inside the small ball 5, the circumference of the suspension magnet 6 is fixedly connected with the inner wall of the small ball 5, the small ball 5 deflects at an angle in appearance, the magnetic force can be controlled by controlling the current of the coil magnet 34, the deflection angle of the small ball 5 can be controlled, and the actual deflection angle of the small ball 5 can be set according to the actual deflection angle of the eight planets by looking up data. The switch 58 on the surface of the small ball 5 is opened, the circuit inside the small ball 5 is communicated, after the communication, the current passes through the wire winding 55, the wire winding 55 starts to cut the magnetic induction line, and then the rotating shaft 50 starts to rotate, the first gear 53 is arranged on the rotating shaft 50, the first gear 53 is meshed with the second gear 54, the second gear 54 is meshed with the gear teeth 61 on the suspension magnet 6, so the rotating shaft 50 rotates to drive the suspension magnet 6 to rotate reversely, namely, the small ball 5 is driven to rotate, the rotating speed of the suspension magnet 6 can be controlled by controlling the gear ratio of the first magnet 51 to the second magnet 52, and the rotating speed of each small ball 5 is proportionally set according to the actual rotating speed of the octave planet, so that the rotating condition of the planet in the solar system can be simulated. A magnetic suspension base 4 is arranged in a supporting seat 1, the sun and planet are reduced in an equal proportion according to the actual size of the sun and the planet, a SolidWorks software 3D printing is used for manufacturing a small ball 5 meeting the requirement to simulate the sun, the inside of the small ball 5 of a sun model is the same as the inside of the small ball 5 of the planet, the actual deflection angle of the revolution of the sun is not reflected in the teaching aid, only the rotation of the teaching aid is needed, a coil magnet 34 is not needed to be arranged on the supporting seat 1 to deflect the supporting seat, and the rest parts are the same as those of the planet model. The supporting seat 1 and the circular table 2 are fixed, the eight planet model running structures 3 are placed below the circular table 2, the positions of the eight planet model running structures are reduced in equal proportion according to the actual positions of the sun and the planets, the sun model small balls 5 are placed at the circle center positions of the circular table 2, the rest small balls 5 are sequentially placed above the circular table 2 according to the corresponding positions of the planet model running structures 3, the surface switches 58 of the small balls 5 are turned on, the trolley is controlled to run according to a set track, and the running condition that the eight planets rotate around the sun can be seen above the circular table 2.

The model can simulate earth-moon running after being slightly changed, the appearance and the rotation speed of a small ball 5 are changed at the sun position of the model, the model of the earth is placed, only one planetary model running structure 3 is reserved, the running track and the running speed of the planetary model running structure 3 are changed, a moon model is manufactured according to the actual earth-moon relative size, the moon rotation speed is changed, the planetary model running structure 3 is placed below the circular truncated cone 2, the moon model is placed above the circular truncated cone 2 and corresponds to the position of the planetary model running structure 3, a moon model surface switch 58 is turned on, the planetary model running structure 3 is controlled to run according to the set track, and the running condition that the moon rotates around the earth can be seen above the circular truncated cone 2.

It is noted that, in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a solar system astronomy teaching aid device based on magnetic suspension which characterized in that: the device comprises a supporting seat (1), a circular table (2), a plurality of planetary model operation structures (3), a plurality of magnetic suspension bases (4), small balls (5) and suspension magnets (6), wherein the supporting seat (1) is fixedly connected with the circle center position of the circular table (2), one of the magnetic suspension bases (4) is fixed at one end, close to the circular table (2), of the supporting seat (1), other magnetic suspension bases (4) are positioned in the planetary model operation structures (3), the magnetic suspension bases (4) correspond to the small balls (5) with the same number, the suspension magnets (6) are arranged in the small balls (5), the suspension magnets (6) are homopolar and opposite to the magnetic suspension bases (4), the small balls (5) are suspended above the central position of the magnetic suspension bases (4), and the magnetic suspension bases (4) are positioned below the circular table (2), the small ball (5) is positioned above the circular truncated cone (2), and the planetary model operation structure moves circularly around the axis of the supporting seat (1).

2. The magnetic suspension-based solar system astronomical teaching aid device according to claim 1, wherein: the planet model operation structure (3) comprises wheels (31), a chassis (32), a battery (33), a coil magnet (34) and a controlled system (35) component, wherein the wheels (31) are fixed on the periphery of the chassis (32), the chassis (32) is fixedly connected with the magnetic suspension base (4), the battery (33) is fixed on the chassis (32), the controlled system (35) is electrically connected with the battery (33), the controlled system (35) is fixed on the chassis (32), and the coil magnet (34) is fixed on the trolley chassis (32).

3. The magnetic suspension-based solar system astronomical teaching aid device of claim 2, wherein: a battery groove (321) is formed in the chassis (32), and the battery (33) is arranged in the battery groove (321).

4. The magnetic suspension-based solar system astronomical teaching aid device according to claim 1, wherein: magnetic suspension base (4) include base (41), coil (42), hall altitude sensor (43), hall position sensor (44) and annular magnet (45) part, annular magnet (45) are fixed on base (41), four coil (42) are placed to the ring position symmetry all around in the middle of annular magnet (45), four coil (42) intermediate position are equipped with hall altitude sensor (43) and hall position sensor (44), coil (42) all with hall altitude sensor (43) and hall position sensor (44) electricity are connected.

5. The magnetic suspension-based solar system astronomical teaching aid device according to claim 1, wherein: the small balls (5) are all provided with self-rotating structures.

6. The magnetic suspension-based solar system astronomical teaching aid device of claim 5, wherein: the autorotation structure comprises a rotating shaft (50), a first magnet (51), a second magnet (52), a first gear (53), a second gear (54), a wire winding (55), an electric brush (56), a fixed power supply (57) and a switch (58) component, wherein the small ball (5) is of a hollow structure, the rotating shaft (50), the first magnet (51), the second magnet (52), the first gear (53), the second gear (54), the wire winding (55), the electric brush (56) and the fixed power supply (57) component are all arranged in the small ball (5), two ends of the rotating shaft (50) are rotatably connected with the small ball (5), the axis of the rotating shaft (50) is perpendicular to the diameter of the cross section of the suspension magnet (6), the axis of the rotating shaft (50) is intersected with the circle center of the cross section of the suspension magnet (6), the first gear (53) is fixedly sleeved at the midpoint position of the length direction of the rotating shaft (50), the second gear (54) is meshed with the first gear (53), the first magnet (51) and the second magnet (52) are fixed on the inner wall of the upper hemisphere of the small ball (5), the first magnet (51) and the second magnet (52) are symmetrically placed by taking the axis of the rotating shaft (50) as a symmetry axis, the magnetic poles of one side, close to each other, of the first magnet (51) and the second magnet (52) are opposite, the side edge of the suspension magnet (6) is fixedly connected with the inner surface of the small ball (5), the suspension magnet (6) is of a circular ring structure, gear teeth (61) are arranged on the inner circle surface of the suspension magnet (6), the second gear (54) is meshed with the gear teeth (61), a wire winding (55) is fixed on the rotating shaft (50), the axis of the wire winding (55) is perpendicular to and intersected with the axis of the rotating shaft (50), and the wire winding (55) is located at the position where the first magnet (51) is connected with the second magnet (52), the wire winding (55) both ends wire with brush (56) contact, brush (56) electricity is connected fixed power (57), be equipped with switch (58) on the return circuit that fixed power (57) and wire winding (55) are constituteed, switch (58) are arranged in pellet (5) surface.

7. The magnetic suspension-based solar system astronomical teaching aid device of claim 6, wherein: a groove (59) is formed in the contact position of the small ball (5) and the rotating shaft (50), the rotating shaft (50) is connected with the small ball (5) through a bearing (591), the outer ring of the bearing (591) is fixed in the groove, and the inner ring of the bearing (591) is fixedly sleeved on the rotating shaft (50).

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