A permanent magnetic suspension system with removable magnetism

Abstract

The invention discloses a permanent magnetic suspension system with removable magnetism, which belongs to the field of magnetic suspension technology and comprises a shell body, on which a bracket and a setting structure for setting auxiliary functional parts are arranged. The invention has a novel concept, a reasonable design and is easy to use. The invention utilizes a rotatable magnet, changes the orientation of the corresponding magnet by rotation, and utilizes the change in the direction of the magnetic field to eliminate the repulsive effect between the magnets, thereby realizing the removal of the suspension magnetic force, which is convenient for subsequent troubleshooting and maintenance work.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic suspension, and in particular to a permanent magnetic suspension system with removable magnetism. Background Art

[0002] Magnetic levitation technology can be applied in many fields, one of which is maglev trains.

[0003] Maglev trains have become an important development direction in the field of rail transit. Generally, maglev trains can be divided into permanent magnet maglev trains, conventional maglev trains and superconducting maglev trains.

[0004] Whether the permanent magnetic levitation train is running or stopped, it has magnetism in a certain range around it, which makes it difficult to troubleshoot and repair work that will be disturbed by magnetic force; however, the permanent magnetic levitation train has a low manufacturing cost and is more suitable for industrial applications. Therefore, how to make it easier to troubleshoot and repair the permanent magnetic levitation train through technical improvements and creations has become a problem that needs to be solved.

[0005] Permanent magnet levitation trains use permanent magnets. According to the characteristics of magnets, each magnet will generate a magnetic field around it. If the magnetic fields of multiple magnets are in the same direction, attraction will occur; if the magnetic fields are in opposite directions, repulsion will occur. Summary of the invention

[0006] In view of the fact that the permanent magnets used in the above-mentioned existing permanent magnet levitation trains are always magnetic and are not convenient for troubleshooting and maintenance, the technical problem to be solved by the present invention is to provide a permanent magnet levitation system with removable magnets. By changing the orientation of the corresponding magnets and utilizing the change in the direction of the magnetic field to eliminate the repulsive effect between the magnets, the levitation magnetic force can be removed, thereby facilitating subsequent troubleshooting and maintenance work.

[0007] The technical solution of the present invention is as follows: a permanent magnetic suspension system with removable magnetism, comprising a train body, a first magnet being rotatably disposed at the lower part of the train body;

[0008] It also includes a rotatable second magnet, which is arranged below the first magnet, and the first magnet and the second magnet can both repel or attract each other by rotating themselves.

[0009] Furthermore, preferably, a third magnet is arranged next to the second magnet.

[0010] Further, as a preference, a magnet mounting seat is fixedly provided at the lower portion of the train body, and the first magnet is rotatably provided in the magnet mounting seat.

[0011] Furthermore, as a preference, it further comprises a magnet setting device, in which the second magnet is rotatably set.

[0012] Further, as a preference, the magnet setting device comprises two opposing yokes, and opposite sides of the two yokes are each provided with a magnet-shaped groove, and the second magnet is arranged in the magnet-shaped groove.

[0013] Further, preferably, the magnet setting device includes a cylindrical magnet fixture, a slot is provided on the magnet fixture, the second magnet is arranged in the slot, and the magnet fixture is rotatably arranged in the magnet groove, and accordingly, the cross-section of the magnet groove is arc-shaped.

[0014] Further, preferably, a plurality of support plates for controlling the distance between the two yokes are provided between the two yokes.

[0015] Further, as a preference, the yoke, the magnet fixture and the support plate are all made of silicon steel.

[0016] Further, preferably, there are two groups of second magnets, and the two groups of second magnets are arranged side by side between two yokes; there are two groups of first magnets, and the two groups of first magnets are arranged side by side, and the yoke is arranged between the two groups of first magnets.

[0017] Further, preferably, the third magnet is disposed between the two yokes, and the third magnet is disposed between the two second magnets.

[0018] Beneficial effects: The present invention has novel concept, reasonable design and is easy to use. The present invention utilizes rotatable magnets, changes the orientation of corresponding magnets by rotation, utilizes the change in magnetic field direction to eliminate the repulsive effect between magnets, and then realizes the removal of suspension magnetic force, which is convenient for subsequent troubleshooting and maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram provided by an embodiment of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the second magnet setting part in another embodiment of the present invention.

[0021] Figure 3 yes Figure 2 Schematic diagram of the decomposition structure. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0023] Embodiment 1

[0024] like Figures 1 to 3The shown permanent magnetic suspension system with removable magnets comprises a train body 1, a first magnet 2 is rotatably provided at the lower part of the train body 1; and a rotatable second magnet 3 is also provided below the first magnet 2, and the first magnet 2 and the second magnet 3 can repel or attract each other by rotating themselves.

[0025] The basic principle adopted by the present invention is to utilize the mutual repulsion between the same poles of magnets to produce repulsive suspension, and the mutual attraction between opposite poles cancels the repulsive effect, thereby canceling the suspension effect. The first magnet 2 is arranged on the train body 1, and the second magnet 3 is arranged at other corresponding positions, mainly referring to the track of the train. The second magnet 3 acts on the first magnet 2. Since the first magnet 2 is arranged on the train body 1, this effect also acts on the train body 1. For example, when the second magnet 3 and the first magnet 2 produce a repulsive effect, since the second magnet 3 is below and the first magnet 2 is above, the suspension effect is naturally produced by the repulsive magnetic force. When the second magnet 3 and the first magnet 2 produce an attractive effect, the two are adsorbed together by magnetic force, and the suspension state is cancelled.

[0026] In actual use, we regard the suspended state of the train body 1 as the magnetization state of the entire system, and the cancellation of the suspended state as the demagnetization state. Since the first magnet 2 is rotatably arranged on the train body 1, the first magnet 2 can change the setting direction on the train body 1 by rotating, thereby changing the spatial direction relationship of its own magnetic field relative to the magnetic field of the second magnet 3, which can change from repulsion to attraction, or from attraction to repulsion. Similarly, the second magnet 2 can be rotatably arranged, and the interaction relationship between the second magnet 2 and the first magnet 2 can also be changed by the rotation of the second magnet 3 itself. When demagnetization is required, it is only necessary to rotate the second magnet 3 so that the second magnet 3 and the first magnet 2 attract each other, and the suspended state is cancelled.

[0027] Further optimized, a third magnet 6 is also arranged next to the magnet 3. In the preferred embodiment, the third magnet 6 is arranged next to the second magnet 3. When the suspension state is required, the second magnet 3 and the third magnet 6 act on the first magnet 2 at the same time, so that the repulsive force is greater. When the suspension state needs to be cancelled, the second magnet 3 is rotated so that the second magnet 3 and the third magnet 6 form a closed magnetic circuit as a whole, weakening the external magnetic influence, and then the force generated between the first magnet 2 is reduced, achieving a good demagnetization effect.

[0028] Embodiment 2

[0029] like Figure 1As shown, as an optimization scheme based on the first embodiment, a magnet mounting seat 4 is fixedly provided at the lower part of the train body 1, and the first magnet 2 is rotatably arranged in the magnet mounting seat 4. In this preferred embodiment, a setting structure of the first magnet 2 is provided. In a specific implementation, the first magnet 2 will be arranged along the train body 1, so the overall arrangement of the first magnet 2 will be in a strip shape. The strip-shaped arrangement has a variety of forms. The first magnet 2 itself can be arranged in a strip shape, and several first magnets 2 can be used and arranged in a strip shape. The first magnet 2 is arranged by the magnet mounting seat 4, which is more reasonable in structure. The first magnet 2 is rotatably arranged on the magnet mounting seat 4, and various rotatable setting structures are all possible.

[0030] In specific implementation, the magnet mounting seat 4 can also be made of silicon steel, which has good magnetic permeability. When in use, the whole is magnetized, and the whole can be regarded as a magnet. At the same time, the structure of the magnet mounting seat 4 can be set to a structure with an "I"-shaped cross section, so that after magnetization, based on the magnetic field characteristics, it has an obvious magnetic pole position, that is, the side end face position of the magnet mounting seat 4. The magnetic field strength of the magnetic pole position is obvious, which conforms to the magnetic pole characteristics, and the magnetic force effect is obvious.

[0031] Embodiment 3

[0032] like Figure 2 to Figure 3 As shown, as an optimization scheme based on the second embodiment, it also includes a magnet setting device 5, and the second magnet 3 is rotatably set in the magnet setting device 5. In this preferred embodiment, a specific setting structure of the second magnet 3 is provided, and the second magnet 3 is set by a special magnet setting device 5, which is more reasonable in structure, supports the second magnet 3, and is convenient for setting and operation.

[0033] Further optimized, the magnet setting device 5 includes two opposing yokes 5a, and the opposing sides of the two yokes 5a are each provided with a magnet-shaped groove 5aa, and the second magnet 3 is arranged in the magnet-shaped groove 5aa. In this preferred embodiment, the yoke 5a is used to specifically set the second magnet 3, and two opposing yokes are used to facilitate the assembly and disassembly of the second magnet 3.

[0034] Further optimized, the magnet setting device 5 includes a cylindrical magnet fixture 5b, a slot is provided on the magnet fixture 5b, the second magnet 3 is arranged in the slot, and the magnet fixture 5b is rotatably arranged in the magnet-shaped slot 5aa, and accordingly, the cross section of the magnet-shaped slot 5aa is in the shape of an arc. In this preferred embodiment, a magnet fixture 5b is provided for setting the second magnet 3. Combined with the properties of the magnet itself, this structure is more reasonable. The second magnet 3 is driven to rotate by the magnet fixture 5b, rather than the second magnet 3 directly rotating, thereby avoiding the wear of the second magnet 3; at the same time, when an external force acts on the magnet fixture 5b to rotate, it also avoids direct action on the second magnet 3 to cause damage.

[0035] Further optimized, the two ends of the magnet fixture 5b form thin sections with smaller outer diameters, and the thin sections are equipped with top rings 7, which are installed in the magnet grooves 5aa. In this preferred embodiment, the top rings 7 are provided to protect the magnet fixture 5b.

[0036] Embodiment 4

[0037] like Figure 2 and Figure 3 As shown, as an optimization solution based on the third embodiment, a plurality of support plates 8 for controlling the spacing between the two yokes 5a are provided between the two yokes 5a. In this preferred embodiment, the spacing between the two thorn yokes 5a is controlled by the support plate 8, so that the spacing between the yoke 5a and the magnet fixture 5b is within a suitable range, which is convenient for the rotation of the magnet fixture 5b. In the specific implementation process, a strip groove for inserting the support plate 8 is provided on the yoke 5a. The two yokes 5a are connected by bolts for easy disassembly.

[0038] Embodiment 5

[0039] like Figure 2 and Figure 3 As shown, as an optimization solution based on the third or fourth embodiment, the yoke 5a, the magnet fixture 5b and the support plate 8 are all made of silicon steel. In this preferred embodiment, the silicon steel has good magnetic permeability, and is magnetized as a whole during use, and the whole can be regarded as a magnet. At the same time, the structure of the two yokes 5a can be arranged as a "I"-shaped structure, so that after magnetization, based on the magnetic field characteristics, it has an obvious magnetic pole position, that is, the side end face of the yoke 5a, and the magnetic field strength of the magnetic pole position is obvious, which conforms to the magnetic pole characteristics, and the magnetic force is obvious.

[0040] Further optimized, the number of the first magnets 2 is two groups, and the first magnets 2 are arranged side by side. Providing two groups of first magnets 2 has a good stabilizing effect in use.

[0041] Further optimized, there are two groups of second magnets 3, and the two groups of second magnets 3 are arranged side by side between the two magnetic yokes 5a. The two groups of second magnets 3 are arranged to better cooperate with the first magnet 2 for more stable and good effect.

[0042] Further optimized, the third magnet 6 is arranged between the two yokes 5a, and the third magnet 6 is arranged between the two second magnets 3. The third magnet 6 is arranged between the yokes 5a made of silicon steel. Since silicon steel has good magnetic permeability, when the third magnet 6 and the second magnet 3 produce opposite-pole attraction, the two form an internal self-enclosed magnetic circuit through the yoke 5a, so that the magnetic field corresponding to the external space of the yoke 5a is greatly weakened, which can be reduced by about 85%, so that the magnetic force on the first magnet 2 is almost eliminated, which plays a very good role in demagnetization.

[0043] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A permanent magnetic suspension system with removable magnetism, comprising a train body (1), characterized in that: A first magnet (2) is rotatably provided at the lower part of the train body (1); It also comprises a rotatable second magnet (3), the second magnet (3) being arranged below the first magnet (2), and the first magnet (2) and the second magnet (3) can both generate a repulsive or attractive effect on each other by rotating themselves; A third magnet (6) is also arranged next to the second magnet (3); A magnet mounting seat (4) is fixedly arranged at the lower part of the train body (1), and the first magnet (2) is rotatably arranged in the magnet mounting seat (4); It also comprises a magnet setting device (5), wherein the second magnet (3) is rotatably arranged in the magnet setting device (5); The magnet setting device (5) comprises two opposing magnetic yokes (5a), each of the two magnetic yokes (5a) being provided with a magnet-shaped groove (5aa) on one side opposite to the other, and the second magnet (3) being arranged in the magnet-shaped groove (5aa); The magnet setting device (5) comprises a cylindrical magnet fixture (5b), the magnet fixture (5b) is provided with a slot hole, the second magnet (3) is arranged in the slot hole, the magnet fixture (5b) is rotatably arranged in the magnet-shaped slot (5aa), and accordingly, the cross section of the magnet-shaped slot (5aa) is in the shape of an arc; A plurality of support plates (8) for controlling the spacing between the yokes (5a) are arranged between the two yokes (5a); The magnetic yoke (5a), the magnetic fixture (5b) and the support plate (8) are all made of silicon steel; The number of the second magnets (3) is two groups, and the two groups of the second magnets (3) are arranged side by side between the two magnetic yokes (5a); the number of the first magnets (2) is two groups, and the two groups of the first magnets (2) are arranged side by side, and the magnetic yoke (5a) is arranged between the two groups of the first magnets (2); The third magnet (6) is arranged between the two yokes (5a), and the third magnet (6) is arranged between the two second magnets (3).

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