Dual-drive magnetic suspension motor

Abstract

The utility model relates to the technical field of motors, in particular to a dual-drive magnetic suspension motor which comprises a base, at least two oppositely-arranged mounting grooves are formed in the base, iron cores and coils wound on the iron cores are arranged in the mounting grooves, a cross beam is arranged on one side of each mounting groove, and the cross beams are arranged in the mounting grooves. The cross beam is connected with the base through an elastic piece, and a permanent magnet is arranged on the cross beam, so that the coils of the two oppositely arranged mounting grooves respectively correspond to one output end, the output ends have enough driving force, and the motor not only can be applied to small-sized electric appliances, but also can be applied to large-sized equipment; and the application range is wide.

Description

Technical Field

[0001] The present disclosure relates to the technical field of motors, and in particular to a dual-drive magnetic levitation motor. Background Art

[0002] Magnetic levitation motors are widely used in mechanical devices. Using magnetic bearings instead of traditional bearings, magnetic levitation motors provide frictionless rotor suspension. These motors offer the following advantages: they are wear-free and pollution-free, allowing for long-term operation in vacuum and corrosive media. They also lack mechanical friction, resulting in low power consumption, low noise, and high efficiency. They require no lubrication or sealing, making them suitable for high-speed engineering applications, addressing lubrication and energy consumption issues in high-speed mechanical design.

[0003] Conventional motors typically include a bracket, a coil assembly, a vibration assembly, and an output shaft. The coil assembly includes an iron core and a coil, while the vibration assembly includes an elastic suspension piece, a permanent magnet support, and a permanent magnet. One end of the elastic suspension piece is fixedly connected to the bracket, and the other end is connected to the permanent magnet support. A first elastic member is positioned between one end of the permanent magnet support and one side of the iron core, and a second elastic member is positioned between the other end and the other side of the iron core. The motor utilizes the principle that a conductive coil moves under the electromagnetic force of an electromagnetic field. By changing the direction of the coil current, the electromagnet reciprocates.

[0004] The motor of the prior art has only one set of conductive windings and magnets inside, and has a small output power. It can only be used in small electrical appliances such as shavers and hair clippers, and cannot be used on large equipment in factories, thus making the application range of the motor very limited. Utility Model Content

[0005] In view of the deficiencies or problems existing in the prior art, the present disclosure provides a dual-drive magnetic levitation motor, which can be used not only in small electrical appliances but also in large equipment and has a wide range of applications.

[0006] The technical solution adopted by the present disclosure to solve the above-mentioned technical problems is: a dual-drive magnetic levitation motor, including a base, at least two oppositely arranged mounting slots on the base, an iron core and a coil wound on the iron core are arranged in the mounting slots, a crossbeam is arranged on one side of each mounting slot, the crossbeam is connected to the base by an elastic part, and a permanent magnet is arranged on the crossbeam.

[0007] As a preferred embodiment, a first gap is provided between the inner side of the crossbeam and the groove body of the installation groove, a second gap is provided between the bottom of the crossbeam and the base, and the output end is connected to the crossbeam.

[0008] As a preferred embodiment, elastic members are provided on both sides of the installation groove, one end of the elastic member is connected to the installation groove, and the other end is connected to the crossbeam.

[0009] As a preferred embodiment, a slot is provided on the crossbeam, and the permanent magnet is arranged in the slot.

[0010] As a preferred embodiment, the beam includes a first connecting surface, and second connecting surfaces extend from both sides of the first connecting surface in a direction close to the mounting groove, and the ends of the second connecting surface are connected to a third connecting surface, and the third connecting surface is arranged parallel to the first connecting surface. A fourth connecting surface extends from the bottom of the first connecting surface in a direction close to the mounting groove, and the bottom of the third connecting surface is located on the fourth connecting surface. The slot is enclosed by the first connecting surface, the second connecting surface, the third connecting surface and the fourth connecting surface.

[0011] As a preferred embodiment, there are at least two permanent magnets, each of which is arranged one by one in a preset direction, and the polarity of the exposed polarity region of each permanent magnet is opposite to that of the exposed polarity region of the adjacent permanent magnet.

[0012] As a preferred embodiment, the iron core is provided with at least one winding portion, and the coil is provided on the winding portion.

[0013] As a preferred embodiment, the iron core is provided with three winding parts, which are arranged in parallel, and the coil is wound on any one or several of the winding parts.

[0014] As a preferred embodiment, connecting plates extend outward from both sides of the installation groove, connecting ribs extend outward from both sides of the beam, one end of the elastic member is connected to the connecting plate, and the other end of the elastic member is connected to the connecting rib.

[0015] As a preferred embodiment, an opening is provided on a side of the mounting groove, a crossbeam is provided at the opening, and a third gap is provided between the two crossbeams.

[0016] Compared with existing products, since there are at least two relatively arranged mounting slots on the base, an iron core and a coil wound on the iron core are arranged in the mounting slots, and a crossbeam is arranged on one side of each mounting slot, the crossbeam is connected to the base through an elastic part, and a permanent magnet is arranged on the crossbeam, so that the coils of the two relatively arranged mounting slots correspond to an output shaft respectively. In this way, the output shaft has sufficient driving force. The motor can be used not only in small electrical appliances, but also in large equipment, and has a wide range of applications; the coils of the two relatively arranged mounting slots correspond to an output shaft respectively, and the running direction of each output shaft is controlled by the current direction of the coil. The running directions of the two output shafts can be the same or opposite, and the two output shafts can work at the same time, or only one of them can work. The motor in the prior art has only one driving source and one output end. The working mode of the output shaft of the technical solution of the present application is more flexible and energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. In addition, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the described objects and may contain exaggerated representations. The drawings are not necessarily drawn to scale.

[0018] Figure 1 This is one of the structural schematic diagrams of a dual-drive magnetic levitation motor disclosed in the present invention;

[0019] Figure 2 This is the second structural diagram of a dual-drive magnetic levitation motor disclosed in the present invention;

[0020] Figure 3 This is the third structural diagram of a dual-drive magnetic levitation motor disclosed in the present invention;

[0021] Figure 4 This disclosure Figure 3 A partial enlarged view of point A in the middle;

[0022] Figure 5 This is one of the cross-sectional views of a dual-drive magnetic levitation motor disclosed herein;

[0023] Figure 6 This is the second cross-sectional view of a dual-drive magnetic levitation motor disclosed herein;

[0024] Figure 7 This is the fourth structural diagram of a dual-drive magnetic levitation motor disclosed in the present invention;

[0025] Figure 8 This disclosure Figure 7 A partial enlarged view of point B in the middle.

[0026] Description of reference numerals:

[0027] 1. Mounting slot; 2. Elastic member; 3. Beam; 4. Coil; 5. Permanent magnet; 6. Connecting plate; 7. Connecting block; 8. Slot; 9. First gap; 10. Second gap; 11. Third gap; 13. Base; 14. First connecting surface; 15. Second connecting surface; 16. Third connecting surface; 17. Fourth connecting surface; 18. Winding portion; 19. Connecting rib. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure is described in detail, clearly, and completely in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not intended to limit the present disclosure.

[0029] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0030] Please see Figures 1-4 As shown, the present disclosure provides a dual-drive magnetic levitation motor. The motor in the present disclosure is a linear motor, including a base 13. The base 13 has two oppositely arranged mounting slots 1. An iron core and a coil 4 wound on the iron core are provided in each mounting slot 1. A beam 3 is provided on one side of each mounting slot 1. The beam 3 is connected to the base 13 through an elastic member 2. A permanent magnet 5 is provided on the beam 3. The direction of the current in the coil 4 is changed, and the permanent magnet 5 carries the beam 3 to perform reciprocating motion. The output end is connected to the beam 3, and the driven component is connected to the output end to drive the driven component so that the driven component performs reciprocating motion. The output end here can be an output shaft for connecting the driven component. Since there are two mounting slots 1 arranged opposite to each other on the base 13, each mounting slot 1 is provided with an iron core and a coil 4 wound around the iron core, and each coil 4 corresponds to a permanent magnet 5, the output end is mounted on the beam 3 corresponding to the permanent magnet 5, so that each output end corresponds to a different coil 4. In this way, the output end has sufficient driving force to drive the driven component. The present application has a larger torque output under the same motor volume, so that the motor in the present application can be used not only in small electrical appliances, but also in large equipment, with a wide range of applications. In addition, the motor in the prior art has only one driving source and one output end, while for the present application, the running direction of each output end is controlled by the current direction of the corresponding coil 4. The running directions of the two output ends can be the same or opposite, and the two output ends can work simultaneously or only one of them can work. The working mode of the output end of the technical solution of the present application is more flexible and energy-saving, and can adapt to more complex control requirements. It should be noted that the driven component here refers to the component or device directly or indirectly driven by the output end.

[0031] It is understandable that the crossbeam 3 reciprocates along with the permanent magnet 5. Figure 5As shown, to reduce resistance during the movement of crossbeam 3, a first gap 9 is provided between the inner side of crossbeam 3 and the body of mounting slot 1, and a second gap 10 is provided between the bottom of crossbeam 3 and base 13. The first gap 9 is provided to prevent friction between crossbeam 3 and the body, and the second gap 10 is provided to prevent friction between crossbeam 3 and base 13, thereby preventing energy loss caused by friction during operation of crossbeam 3. The provision of first gap 9 and second gap 10 is equivalent to suspending crossbeam 3, reducing contact between crossbeam 3 and other components, resulting in higher efficiency, longer lifespan, and lower noise.

[0032] like Figure 2 、 Figure 5 and Figure 7 As shown, in order to limit the permanent magnet 5 on the crossbeam 3 and prevent the permanent magnet 5 from colliding with the crossbeam 3 during operation, a clamping groove 8 is provided on the crossbeam 3, and the permanent magnet 5 is arranged in the clamping groove 8. Specifically, the crossbeam 3 includes a first connecting surface 14 directly opposite the mounting groove 1, and second connecting surfaces 15 extend from both sides of the first connecting surface 14 in a direction close to the mounting groove 1. The ends of the second connecting surface 15 are connected to a third connecting surface 16, and the third connecting surface 16 is arranged parallel to the first connecting surface 14. A fourth connecting surface 17 extends from the bottom of the first connecting surface 14 in a direction close to the mounting groove 1, and the bottom of the third connecting surface 16 is located on the fourth connecting surface 17. The clamping groove 8 is enclosed by the first connecting surface 14, the second connecting surface 15, the third connecting surface 16 and the fourth connecting surface 17. After the permanent magnet 5 is placed in the slot 8, the bottom of the permanent magnet 5 is located on the fourth connecting surface 17. The two side edges of the permanent magnet 5 respectively contact the inner side of the second connecting surface 15. The thickness of the permanent magnet 5 is adapted to the width of the inner wall of the second connecting surface 15, thereby stably retaining the permanent magnet 5 in the slot 8. The fourth connecting surface 17 does not contact the base 13, so that the beam 3 remains suspended. The second gap 10 is the gap between the fourth connecting surface 17 and the base 13.

[0033] like Figure 3 and Figure 5As shown, two mounting grooves 1 are arranged opposite to each other, and an opening is provided on one side close to the other mounting groove 1. A crossbeam 3 is provided at the opening, and a third gap 11 is provided between the two crossbeams 3. The third gap 11 refers to the gap between the first connecting surfaces 14 of the two crossbeams 3. Such an arrangement avoids friction between the two crossbeams 3 or one of the crossbeams 3 when the two crossbeams 3 or one of the crossbeams 3 moves back and forth. A first end surface is provided at the opening of the mounting groove 1, and the first gap 9 refers to the gap between the first end surface and the third connecting surface 16. In summary, except for the elastic member 2, the crossbeam 3 does not contact any components, and the elastic member 2 is provided on the side of the crossbeam 3. During the reciprocating operation of the crossbeam 3, the friction between the elastic member 2 and the crossbeam 3 is almost negligible, so that the crossbeam 3 and the output end that runs with the crossbeam 3 have a higher driving efficiency.

[0034] like Figure 2 、 Figure 7 and Figure 8 As shown, in one embodiment of the present disclosure, an elastic member 2 is provided on both sides of the mounting slot 1. One end of the elastic member 2 is connected to the mounting slot 1, and the other end is connected to the crossbeam 3. Specifically, a connecting plate 6 extends outward from each side of the mounting slot 1, and a connecting block 7 is provided on the connecting plate 6. One end of the elastic member 2 is connected to the connecting block 7. Connecting ribs 19 extend outward from each side of the crossbeam 3, and the other end of the elastic member 2 is connected to the connecting rib 19. The connecting blocks 7 and connecting ribs 19 can be elastic members 2 or plastic members. The elastic member 2 in the present disclosure is a spring or rubber. When the permanent magnet 5 cuts the magnetic flux lines (reciprocating motion) under the action of the coil 4, the crossbeam 3 squeezes the elastic member 2 on one side. At the same time, the elastic member 2 on the other side is in a stretched state, exerting a tensile force on the crossbeam 3. When the crossbeam 3 reaches a preset position and stops moving, it returns to its initial state under the action of the elastic member 2. In this way, high-frequency reciprocating motion of the crossbeam 3 can be achieved, thereby driving the driven component to perform high-frequency reciprocating motion. The provision of the elastic member 2 further improves the high-speed reciprocating motion of the motor.

[0035] Preferably, the permanent magnet 5 disclosed in the present invention is an electromagnet or an aluminum-nickel-cobalt permanent magnet alloy. There are at least two permanent magnets 5 disclosed in the present invention, and each permanent magnet 5 is arranged one by one in a preset direction. The polarity of the exposed polarity region of each permanent magnet 5 is opposite to that of the exposed polarity region of the adjacent permanent magnet 5, that is, the N pole and S pole of each permanent magnet 5 are arranged alternately. In this way, the permanent magnet 5 in the present application runs back and forth under the action of the coil 4, which is similar to the operating principle of a levitation train.

[0036] In one embodiment of the present disclosure, the iron core is provided with a winding portion 18, and the coil 4 is provided on the winding portion 18. This arrangement makes the control relatively simple, and the short-distance axial linear movement of the motor can be achieved by simply controlling the on and off of the switch.

[0037] like Figure 6 and Figure 7 As shown, in another embodiment of the present disclosure, the iron core is provided with three winding parts 18, and the three winding parts 18 are arranged in parallel, and the coil 4 is wound on any one or any several winding parts 18. The more winding parts 18 the coil 4 is wound around, the longer the movement stroke can be achieved for the driven parts of the same volume. In addition, the more winding parts 18 the coil 4 is wound around, the greater the driving force of the motor, and it can drive larger equipment, such as a feeding mechanism that moves back and forth or a robot arm and other actuators that need to perform reciprocating motion. The present application can control the strength of the magnetic pole of the iron core by controlling the magnitude of the current in the coil 4, thereby realizing the axial servo motion of the mechanism.

[0038] The present application has been described in detail above. Specific examples have been used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is intended only to facilitate understanding of the present application and its core concepts. It should be noted that, without departing from the principles of the present application, a number of improvements and modifications may be made to the present application by a person skilled in the art, and such improvements and modifications shall fall within the scope of protection of the claims of the present application.

Claims

1. A dual-drive magnetic levitation motor, characterized in that: The invention comprises a base (13), the base (13) having at least two mounting grooves (1) arranged opposite to each other, an iron core and a coil (4) wound around the iron core arranged in the mounting groove (1), a crossbeam (3) arranged on one side of each mounting groove (1), the crossbeam (3) being connected to the base (13) via an elastic member (2), and a permanent magnet (5) being arranged on the crossbeam (3).

2. The dual-drive magnetic levitation motor according to claim 1, characterized in that: A first gap (9) is provided between the inner side of the crossbeam (3) and the groove body of the installation groove (1), a second gap (10) is provided between the bottom of the crossbeam (3) and the base (13), and an output end is connected to the crossbeam (3).

3. The dual-drive magnetic levitation motor according to claim 1, characterized in that: Elastic members (2) are provided on both sides of the installation groove (1); one end of the elastic member (2) is connected to the installation groove (1), and the other end is connected to the crossbeam (3).

4. The dual-drive magnetic levitation motor according to claim 3, characterized in that: Connecting plates (6) extend outwards from both sides of the mounting groove (1), connecting ribs (19) extend outwards from both sides of the crossbeam (3), one end of the elastic member (2) is connected to the connecting plate (6), and the other end of the elastic member (2) is connected to the connecting rib (19).

5. The dual-drive magnetic levitation motor according to claim 1, characterized in that: A slot (8) is provided on the crossbeam (3), and the permanent magnet (5) is arranged in the slot (8).

6. The dual-drive magnetic levitation motor according to claim 5, characterized in that: The crossbeam (3) includes a first connecting surface (14), and second connecting surfaces (15) are respectively extended on both sides of the first connecting surface (14) in a direction close to the installation groove (1). The end of the second connecting surface (15) is connected to a third connecting surface (16), and the third connecting surface (16) is arranged parallel to the first connecting surface (14). A fourth connecting surface (17) is extended at the bottom of the first connecting surface (14) in a direction close to the installation groove (1), and the bottom of the third connecting surface (16) is located on the fourth connecting surface (17). The slot (8) is surrounded by the first connecting surface (14), the second connecting surface (15), the third connecting surface (16) and the fourth connecting surface (17).

7. The dual-drive magnetic levitation motor according to claim 1, characterized in that: There are at least two permanent magnets (5), each of which is arranged one by one in a preset direction, and the exposed polarity region of each permanent magnet (5) is opposite to the polarity of the exposed polarity region of the adjacent permanent magnet (5).

8. The dual-drive magnetic levitation motor according to claim 1, characterized in that: The iron core is provided with at least one winding portion (18), and the coil (4) is arranged on the winding portion (18).

9. The dual-drive magnetic levitation motor according to claim 1, characterized in that: The iron core is provided with three winding parts (18), the three winding parts (18) are arranged in parallel, and the coil (4) is wound on any one or several winding parts (18).

10. The dual-drive magnetic levitation motor according to claim 1, characterized in that: An opening is provided on the side of the installation groove (1), a crossbeam (3) is provided at the opening, and a third gap (11) is provided between the two crossbeams (3).

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