CN219066305U - Magnetic suspension device with full-rotation spherical floater - Google Patents
Magnetic suspension device with full-rotation spherical floater Download PDFInfo
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- CN219066305U CN219066305U CN202320189772.9U CN202320189772U CN219066305U CN 219066305 U CN219066305 U CN 219066305U CN 202320189772 U CN202320189772 U CN 202320189772U CN 219066305 U CN219066305 U CN 219066305U
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Abstract
The utility model relates to a magnetic suspension device with a full-rotation spherical floater, which is structurally characterized in that a spherical electromagnetic cage is supported and connected at the top of a base, and the spherical floater is arranged in the spherical electromagnetic cage; the spherical electromagnetic cage comprises a cage body, a suspension control assembly, a rotation control coil, a high-low position detection assembly, a horizontal position sensor and the like; the cage body is a spherical cage frame formed by interconnecting three annular bodies, the suspension control assembly comprises a permanent magnet and vertical driving coils, and a plurality of rotation control coils are distributed on the outer circular surfaces of the three annular bodies of the cage body; the high-low position detection assembly is arranged on the lower junction of the spherical cage frame, and the horizontal position sensors are respectively arranged on the four junctions of the spherical cage frame in the horizontal direction and used for detecting the horizontal position of the spherical floater in the spherical electromagnetic cage. The utility model can simulate various rotation postures of the spherical floater in a weightless state, so as to be beneficial to teaching experiment observation and science popularization display.
Description
Technical Field
The utility model relates to a physical teaching aid, in particular to a magnetic suspension device with a full-rotation spherical floater.
Background
The rotation direction of the floats of most existing magnetic suspension devices in the Z axis is uncontrolled, namely, most floats are in a free rotation state. In many cases, it is required that the magnetic levitation product must be fully controllable. For example, in a magnetically levitated teaching tour, it is desirable that the float be either stationary or rotatable or even movable. For magnetic levitation exhibits like a globe, it is necessary to be able to exhibit the rotation state in a tilting axis manner. For balls that simulate rolling on the ground, it is even necessary that the float be able to perform a number of different directions of rotation. Magnetic levitation devices capable of controlling the rotation of a float generally require the installation of permanent magnets on the float, some of which are also provided with a plurality of permanent magnets. From a control point of view, the installation of a permanent magnet on the float allows controlled suspension or rotation of the float, but the arrangement of the permanent magnet on the float also becomes a magnetic "node" on the float, which in turn limits the rotation of the float in other axial directions.
For demonstrating physical phenomena like ball rolling, it is required that a float in a magnetic levitation demonstrating device can axially rotate on at least three coordinate axes in a rectangular coordinate system. A better demonstration will be achieved if these three axial rotations can be combined into a controlled rotation in any axial direction. However, at present, no magnetic suspension product capable of realizing the rotation in all directions can be used for teaching research and science popularization demonstration in the market.
Disclosure of Invention
The utility model aims to provide a magnetic suspension device with a full-rotation spherical floater, so as to solve the problem that the existing magnetic suspension demonstration device cannot realize any axial controlled rotation.
The utility model is realized in the following way:
a magnetic suspension device with a full-rotation type spherical floater is structurally characterized in that a spherical electromagnetic cage is supported and connected to the top of a base, the spherical floater is arranged in the spherical electromagnetic cage, and a working gap is kept between the spherical floater and the spherical electromagnetic cage.
The spherical electromagnetic cage comprises a cage body, a suspension control assembly, a rotation control coil, a high-low position detection assembly and a horizontal position sensor; the cage body is a spherical cage frame formed by interconnecting three annular bodies, the intersection points of the three annular bodies are distributed on the upper, lower, front, rear, left and right directions of the spherical cage frame, and the center axes of the three annular bodies are mutually perpendicular to each other and intersect at the center of the sphere of the spherical cage frame; the suspension control assembly comprises a permanent magnet and a vertical driving coil, the permanent magnet is arranged at the upper junction of the spherical cage frame and extends out to the inner side of the cage body, and the vertical driving coil is wound on the periphery of the permanent magnet; the rotary control coils are distributed on the outer circular surfaces of the three annular bodies of the cage body; the high-low position detection component is arranged on the inner surface of the upper junction or the lower junction of the spherical cage frame and is used for detecting the high-low position of the spherical floater in the spherical electromagnetic cage; the horizontal position sensors are respectively arranged on four intersection points of the spherical cage frame in the horizontal direction and are used for detecting the horizontal position of the spherical floater in the spherical electromagnetic cage.
Further, the spherical float is a spherical shell made of a magnetically conductive and electrically conductive material, and the spherical float does not have permanent magnetic characteristics.
Further, the rotary control coils are divided into three groups, a group of rotary control coils are uniformly and symmetrically arranged on each annular body on the cage body, and the three groups of rotary control coils are arranged on each annular body in the same mode.
Further, the high-low position detection assembly comprises a high-low position sensor, a rotation control coil and an iron core connected in the rotation control coil in a penetrating way.
Further, two upright torus in the cage body are divided into an upper arc section and a lower arc section, plug assemblies are respectively arranged at two ends of the upper arc section, socket assemblies are respectively arranged at the positions of four intersection points on the horizontally arranged torus, and plug connectors on the plug assemblies are inserted into jacks of the socket assemblies to form a complete torus.
Further, a rotation control coil is arranged in the plug assembly, one end of an iron core connected in the rotation control coil in a penetrating way penetrates out of the shell of the plug assembly, and the iron core extends out of the inner side of the cage body.
Further, a rotation control coil is arranged in the socket assembly, one end of an iron core connected in the rotation control coil in a penetrating way penetrates through the shell of the socket assembly, and the iron core extends to the inner side of the cage body.
In the present utility model, the surface of the spherical float corresponds to a metal disk, and if the float can rotate, it is necessary to have a corresponding rotating magnetic field. The rotating magnetic fields on the three torus may be provided by three sets of rotating drive coils mounted thereon. At this time, the spherical float in a suspended state is in a rotating magnetic field and receives ampere force of the magnetic field. This force will create a turning moment on the surface of the float, so that the spherical float can be turned in the direction of the rotation of the magnetic field.
In view of the fact that the rotation control coils arranged on each torus can provide certain moments, the moments can act independently, and the spherical floater rotates by taking a certain coordinate axis as a rotation axis; the novel rotating shaft can be formed for the spherical floater according to the vector synthesis mode of the moment by comprehensively acting according to a certain proportion. Therefore, the spherical floater can rotate at a certain speed in any angle and any direction in the spherical electromagnetic cage. In the utility model, the rotation speed of the spherical floater is strictly limited by the rotating magnetic field and is always lower than that of the rotating magnetic field, and the principle of the spherical floater is the same as that of an asynchronous motor.
The utility model is beneficial to realizing the simulation of various rotation postures of the spherical floater in a weightless state in the natural gravity environment of the ground, so as to be beneficial to the experimental observation of self-control, electromechanical and physical professional teaching; the ball game machine can also be applied to places such as science and technology museums and the like to display the science popularization of the random rotation condition of ball objects.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic illustration of a spherical electromagnetic cage exploded structure and its positional relationship with a spherical float.
FIG. 3 is a schematic diagram of a three-dimensional labeling method of a cage.
Fig. 4 is a schematic structural view of the plug assembly.
Fig. 5 is a schematic structural view of the socket assembly.
In the figure: 1. the device comprises a base, 2, a spherical electromagnetic cage, 3, a float ball, 4, a suspension control assembly, 5, an upper cage body, 6, a lower cage body, 7, a rotary driving coil, 8, a plug assembly, 9, a socket assembly, 10, a high-low position detection assembly, 11, an iron core, 12, a plug, 13, a jack, 14 and a horizontal position sensor.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings.
As shown in figure 1, the utility model comprises a base 1, a spherical electromagnetic cage 2, a spherical floater 3 and the like, wherein the spherical electromagnetic cage 2 is fixedly connected to the upper end of the base 1, and the spherical floater 3 is arranged in the spherical electromagnetic cage 2. The spherical float 3 can be made of soft magnetic material or a thin shell of magnetically conductive and electrically conductive metal with a certain thickness, which can meet the corresponding magnetic flux conditions and lower resistivity.
As shown in fig. 2, the spherical electromagnetic cage 2 includes a cage body, a levitation control assembly 4, a rotation control coil 7, a high-low position detection assembly 10, a horizontal position sensor 14 (fig. 5), and the like. In fig. 2, the cage body is a spherical cage frame formed by interconnecting three non-magnetic annular bodies, the center axes of the three annular bodies are mutually perpendicular to each other at the sphere center of the spherical cage frame, and the intersection points formed between the three annular bodies are distributed in six directions of the upper direction, the lower direction, the front direction, the rear direction, the left direction and the right direction of the spherical cage frame.
For the closed cage structure, the utility model decomposes the cage into two components of an upper cage 5 and a lower cage 6, and the two components are connected with each other at the butt joint in a plug-in matching way to form the closed cage. The split mode of the cage body is that the two upright torus bodies are divided into an upper arc section and a lower arc section, the two ends of the upper arc section are respectively provided with a plug component 8, and the end part of the lower arc section is connected to the horizontally arranged torus bodies to form four intersection points of front, back, left and right. The four junction points on the flat torus are respectively provided with a socket component 9, and the jacks on the socket component 9 face upwards. The plug 12 (fig. 4) of the plug assembly 8 is plugged into the jack 13 of the socket assembly 9 to close the cage. In fig. 2, since the plug assembly 8 and the socket assembly 9 occupy the arrangement position of one rotation control coil on the cage, one rotation control coil is also provided in each of the plug assembly 8 and the socket assembly 9. One end of the iron core 11 which is penetrated in the rotation control coil in the plug assembly 8 penetrates out of the shell of the plug assembly 8 and extends out of the inner side of the cage body (fig. 4); one end of the iron core 11 of the rotation control coil of the socket assembly 9 is penetrated out of the housing of the socket assembly 9 and also protrudes to the inside of the cage (fig. 5). The cage structure of the split combination can conveniently put the spherical floater into the cage structure, ensure that the outside of the cage structure is provided with sufficient surface area for installing the rotation control coil 7, the plug assembly 8, the socket assembly 9 and other devices, and can clearly observe the suspension and rotation conditions of the spherical floater 3 from the outside.
In fig. 2, a permanent magnet and a coaxial winding vertical driving coil are arranged at the junction of the top of the cage body, and a suspension control assembly 4 consisting of the permanent magnet and the electromagnetic wire is used for providing an attractive force which can be equal to the weight of the spherical float 3 and opposite to the weight of the spherical float within a certain distance so as to balance the weight of the spherical float and realize the suspension of the spherical float 3 in the spherical electromagnetic cage 2.
In fig. 2, the rotary control coils 7 have a plurality of same structures and are distributed on the outer circular surfaces of the three annular bodies of the cage body, and the iron core on each rotary control coil penetrates through the annular body and extends out to the inner side of the cage body. The rotation control coils 7 on the three torus form three sets of driving coils, each set of driving coils can generate a rotation magnetic field with the normal line of the plane center of the driving coils as an axis. The magnetic field drives the suspended spherical float 3 to rotate in the direction of the rotating magnetic field. Thus, three sets of drive coils can generate three mutually perpendicular rotating magnetic fields. The spherical float 3 may rotate in either a single rotating magnetic field direction or a combined rotating magnetic field direction. Based on this, the spherical float 3 can rotate about any one of the fixed directions of the three-dimensional space as an axis. The specific direction of rotation depends on the way in which the magnetic vectors generated by the three sets of drive coils are combined.
The high and low position detection assembly 10 is disposed on the top surface of the lower junction of the spherical cage and includes a high and low position sensor, a rotary control coil, and a core threaded into the rotary control coil. The rotating control coils and the iron cores are arranged in the high-low position detection assembly 10 to perfect the balanced distribution of the rotating control coils on the cage body; the high-low position sensor is used for detecting the high-low position of the spherical floater 3 in the spherical electromagnetic cage 2. The horizontal position sensors 14 are respectively arranged in socket assemblies 9 (fig. 5) arranged at four intersection points in the horizontal direction of the spherical cage, and are distributed at the periphery of the iron core 11 penetrating from the intersection points, so as to detect the horizontal position of the spherical floater 3 in the spherical electromagnetic cage 2.
In fact, the spherical float 3 must have a certain vibration or deflection during the rotation operation, so that the error of the detection of the spherical distance increases. Based on the above, the accurate position of each detection point on the spherical surface of the spherical float 3 needs to form a group of mutually related sensors by using a plurality of sensors with similar distances to implement common detection, so as to obtain different measurement results, remove each interference value, average the measurement results and comprehensively form the accurate position data of the square point.
In order to clearly describe the structural characteristics of the spherical electromagnetic cage, the surface position of the spherical electromagnetic cage is calibrated by means of a rectangular coordinate system. As can be seen from FIG. 3, the cage body of the spherical electromagnetic cage is cut by three mutually perpendicular planes XOY, XOZ and YOZ, and three annular bodies X-Y, X-Z and Y-Z are formed along the tangential track of the spherical surface.
The system is provided with a system controller, and the accurate position of the detection point is calculated to obtain the data of the suspension height and the deflection degree of the spherical floater 3. The due power-on state of each rotation control coil 7 on the suspension control assembly 4 and the X-Y torus is obtained according to the data, so that the spherical floater 3 is ensured to stably suspend in the middle and rotate horizontally. Furthermore, the vertical rotation of the spherical float 3 on the two vertical endless belts X-Z and Y-Z, as well as the tilting rotation of the different endless belts in combination, can also be controlled.
The electromagnetic properties of the whole spherical float 3 are identical, and the spherical shell of the soft magnet is attracted by the permanent magnet in the suspension control assembly 4 positioned at the top end of the spherical electromagnetic cage and the magnetic force of each rotation control coil is regulated. At the same time, the spherical float 3 is not magnetized by the magnetic field to affect rotation. That is, the electromagnetic characteristics of the spherical float 3 at any posture and angle within the spherical electromagnetic cage 2 are constant, and the internal moment thereof is balanced. Under the suspension state without the action of other external forces, the suspension device can keep static or uniform rotation state.
The periphery of each torus on the spherical electromagnetic cage 2 is also provided with a protective shell so as to cover the rotating control coil 7 and other devices, so that the reliability, the safety and the ornamental value of the utility model can be greatly improved.
Claims (7)
1. A magnetic suspension device with a full-rotation type spherical floater is characterized in that a spherical electromagnetic cage is supported and connected to the top of a base, the spherical floater is arranged in the spherical electromagnetic cage, and a working gap is kept between the spherical floater and the spherical electromagnetic cage;
the spherical electromagnetic cage comprises a cage body, a suspension control assembly, a rotation control coil, a high-low position detection assembly and a horizontal position sensor; the cage body is a spherical cage frame formed by interconnecting three annular bodies, the intersection points of the three annular bodies are distributed on the upper, lower, front, rear, left and right directions of the spherical cage frame, and the center axes of the three annular bodies are mutually perpendicular to each other and intersect at the center of the sphere of the spherical cage frame; the suspension control assembly comprises a permanent magnet and a vertical driving coil, the permanent magnet is arranged at the upper junction of the spherical cage frame and extends out to the inner side of the cage body, and the vertical driving coil is wound on the periphery of the permanent magnet; the rotary control coils are distributed on the outer circular surfaces of the three annular bodies of the cage body; the high-low position detection component is arranged on the lower junction of the spherical cage frame and used for detecting the high-low position of the spherical floater in the spherical electromagnetic cage; the horizontal position sensors are respectively arranged on four intersection points of the spherical cage frame in the horizontal direction and are used for detecting the horizontal position of the spherical floater in the spherical electromagnetic cage.
2. A magnetic levitation apparatus having a fully-rotating spherical float as defined in claim 1, wherein the spherical float is a spherical shell made of magnetically permeable and electrically conductive material.
3. The magnetic levitation device with the full-rotation spherical floater as claimed in claim 1, wherein the rotation control coils are divided into three groups, a group is uniformly and symmetrically arranged on each ring body on the cage body, and the three groups of rotation control coils are arranged on each ring body in the same way.
4. A magnetic levitation apparatus having a full-rotation spherical float according to claim 1, wherein the high-low position detecting assembly comprises a high-low position sensor, a rotation control coil, and a core penetrating the rotation control coil.
5. The magnetic levitation device with the full-rotation spherical floater as claimed in claim 1, wherein the two upright circular ring bodies in the cage body are divided into an upper arc section and a lower arc section, plug assemblies are respectively arranged at two ends of the upper arc section, socket assemblies are respectively arranged at four intersection points on the flat circular ring bodies, and the plug connectors on the plug assemblies are inserted into the insertion holes of the socket assemblies to form the complete circular ring body.
6. A magnetic levitation apparatus having a full rotation spherical float as defined in claim 5, wherein a rotation control coil is provided in the plug assembly, and one end of the iron core penetrating the rotation control coil penetrates the housing of the plug assembly to protrude toward the inside of the cage.
7. A magnetic levitation apparatus having a full rotation spherical float as defined in claim 5, wherein a rotation control coil is provided in the socket assembly, and one end of the iron core penetrating the rotation control coil penetrates the housing of the socket assembly to protrude toward the inside of the cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320189772.9U CN219066305U (en) | 2023-02-13 | 2023-02-13 | Magnetic suspension device with full-rotation spherical floater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320189772.9U CN219066305U (en) | 2023-02-13 | 2023-02-13 | Magnetic suspension device with full-rotation spherical floater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219066305U true CN219066305U (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320189772.9U Active CN219066305U (en) | 2023-02-13 | 2023-02-13 | Magnetic suspension device with full-rotation spherical floater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219066305U (en) |
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2023
- 2023-02-13 CN CN202320189772.9U patent/CN219066305U/en active Active
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