Magnetic suspension motor structure

Abstract

The utility model relates to the technical field of magnetic suspension devices, in particular to a magnetic suspension motor structure, which comprises an outer shell, a plurality of external stators are mounted in the outer shell, a plurality of brass coils are assembled at the upper ends of the external stators, a fixing plate is mounted at the upper ends of the brass coils, and outer ring shells are mounted on the inner layers of the external stators. The magnetic bearing is mounted at the front end of the outer ring shell, the magnet block is mounted in the outer ring shell, the middle ring is inserted in the outer ring shell, the steel blocks are inserted in the middle ring, the inner ring is mounted in the middle of the middle ring, and the movable bearing is inserted in the middle of the inner ring. The transmission of kinetic energy can be reduced, the transmission efficiency of the device is improved, a plurality of motor stators are arranged in the device, the kinetic energy generation amount of the device is increased, a centralizing end block for effectively guaranteeing the position of the transmission shaft is arranged in the device, and it is ensured that the device does not shake due to increase of the kinetic energy while conveying power to the transmission shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic suspension devices, in particular to a magnetic suspension motor structure. Background Art

[0002] Magnetic levitation technology refers to a technology that uses magnetic force to overcome gravity to make objects suspend. Its principle is actually that opposites attract and likes repel. Through the rational use of magnetic force, gravity can be overcome to make objects suspended. The current suspension technologies mainly include magnetic levitation, optical levitation, acoustic levitation, air flow levitation, electric levitation, particle beam levitation, etc. Among them, magnetic levitation technology is relatively mature, and there are many forms of magnetic levitation technology, which can be mainly divided into passive suspension with self-stabilization of the system and active suspension with non-self-stabilization of the system. Similarly, maglev trains are new types of transportation composed of contactless magnetic support, magnetic guidance and linear drive systems. There are mainly superconducting electric maglev trains, conventional electromagnetic attraction high-speed maglev trains and conventional electromagnetic attraction medium and low-speed maglev trains.

[0003] For example, a magnetic levitation motor with a publication number of CN108288926A comprises a shell, a rotor disk, a stator disk and a rotating shaft, wherein the stator disk is fixed on the shell, the stator disk and the rotor disk are both sleeved outside the rotating shaft with a gap between them, and a plurality of the rotor disks and a plurality of the stator disks are axially spaced apart; n permanent magnets are arranged on the rotor disk, and the n permanent magnets are evenly spaced apart in a circumferential direction, n is an even number, a pair of the permanent magnets in the same radial direction of the same rotor disk have the same polarity, and the permanent magnets in adjacent layers of the rotor disks in the same axial direction have opposite polarities, and n coreless coil windings are arranged on the stator disk, and the n coreless coil windings are evenly spaced apart in a circumferential direction.

[0004] Since the polarity of a pair of permanent magnets in the same radial direction of the same rotor disk is the same, the radial magnetic force generated by the device causes the rotating shaft to suspend and prevent radial movement of the rotating shaft, thereby reducing friction. Also, since the polarity of the permanent magnets in the adjacent layers of the rotor disks along the same axial direction are opposite, an axial magnetic force is generated to prevent axial movement of the rotating shaft and achieve precise positioning. However, this device is relatively weak in improving the reduction of friction and appears to be somewhat redundant compared with the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a magnetic suspension motor structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetic levitation motor structure, including an outer shell, a plurality of external stators are installed inside the outer shell, and a plurality of brass coils are assembled on the upper end of the external stators, and a fixing plate is installed on the upper end of the brass coils, an outer ring shell is installed on the inner layer of the external stator, and a magnet block is installed inside the outer ring shell, and a middle ring is inserted inside the outer ring shell, and a plurality of steel blocks are inserted inside the middle ring, and an inner ring is installed in the middle of the middle ring, and a movable bearing is inserted in the middle of the inner ring.

[0007] Preferably, a transmission shaft is assembled in the middle of the movable bearing, and a partition is installed on the outer surface of the transmission shaft, and a magnetic bearing is connected to the surface of the partition.

[0008] Preferably, a cover plate is provided on the upper end surface of the magnetic bearing, and a position sensor is installed at the front end of the cover plate, and a rotating shaft is assembled at the front end of the transmission shaft.

[0009] Preferably, a transmission gear is provided at the front end of the rotating shaft.

[0010] Preferably, a centrally placed stator is assembled inside the outer shell, and a straightening end block is installed on the outer surface of the transmission shaft.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. Compared with other magnetic levitation motor structures, this device can reduce the friction attached to the front-end transmission through the magnetic bearing installed at the front end, reduce the transmission of kinetic energy, and increase the transmission efficiency of the device.

[0013] 2. In addition, multiple motor stators are provided inside the device to increase the kinetic energy generated by the device, and a straightening end block is provided inside to effectively ensure the position of the transmission shaft, ensuring that the device will not shake due to the increase in kinetic energy while transmitting power to the transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an overview of the front end of the utility model;

[0015] Figure 2 It is a partial exploded view of the front end of the utility model;

[0016] Figure 3 It is an internal middle general view of the utility model.

[0017] In the figure: outer shell 1, steel block 2, middle ring 3, magnet block 4, outer ring shell 5, brass coil 6, fixed plate 7, external stator 8, transmission shaft 9, magnetic bearing 10, position sensor 11, transmission gear 12, rotating shaft 13, cover plate 14, partition 15, movable bearing 16, inner ring 17, middle stator 18. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 3 , the utility model provides a technical solution:

[0020] Figure 1 The front end overview diagram of the device is shown in FIG. 1 . The main body is an outer shell 1. Several external stators 8 are installed inside the outer shell 1. The external stators 8 are installed by fixing nodes or fixing blocks embedded in the inner surface, so as to provide convenient disassembly and installation effects. Several brass coils 6 are installed on the upper end of the external stator 8. Meanwhile, a fixing plate 7 is installed on the upper end of the brass coil 6. The installation of the brass coil 6 is used to provide a strong magnetic field effect for the external stator 8. The inner layer of the external stator 8 is installed with an outer ring shell 5. The outer ring shell 5 is embedded in the surface of the external stator 8. The inner part of the outer ring shell 5 is mainly installed with a magnet block 4 composed of a large number of magnets and iron, which is generally in a stationary state. Meanwhile, a middle ring 3 is inserted inside the outer ring shell 5. Several steel blocks 2 are inserted inside the middle ring 3. The middle ring 3 is composed of multiple steel blocks 2 and magnets.

[0021] Figure 2 It is a partial exploded view of the front end of the device, the main body is a central ring 3, the middle of the central ring 3 is installed with an inner ring 17, the components of the inner ring 17 contain a small amount of magnets, the three sets of rings provide extremely quiet and stable operating conditions through the drive of the magnetic field, and at the same time, a movable bearing 16 is inserted in the middle of the inner ring 17, and a transmission shaft 9 is assembled in the middle of the movable bearing 16. The rotation of the inner ring 17 will drive the rotation of the bearing, thereby transmitting the generated kinetic energy to the transmission shaft 9, and a partition 15 is installed on the outer surface of the transmission shaft 9, and a magnetic bearing 10 is connected to the surface of the partition 15, and the magnetic bearing 10 is installed close to the partition 15, so that the installation of the magnetic bearing 10 can effectively reduce the friction coefficient during the transmission process, so that the transmission efficiency is improved, and a cover plate 14 is provided on the upper end surface of the magnetic bearing 10, and a position sensor 11 is installed at the front end of the cover plate 14 for the vertical coefficient of the transmission shaft 9 itself, so as to ensure the stable operation of the transmission shaft 9, and at the same time, a rotating shaft 13 is assembled at the front end of the transmission shaft 9;

[0022] Figure 3This is an overall view of the interior middle of the device. The main body is a rotating shaft 13, and a transmission gear 12 is provided at the front end of the rotating shaft 13. A central stator 18 is assembled inside the outer shell 1 to strengthen the internal magnetic field, so that the transmission shaft 9 is subjected to more force to enable the transmission shaft 9 to transmit power, and a straightening end block is installed on the outer surface of the transmission shaft 9 to maintain the center position of the internal transmission shaft 9.

[0023] During actual use, the transmission shaft 9 is first installed inside the outer shell 1, and the magnetic field generated by the internal external electron drives the outer shell ring to rotate. The internal magnetic field operates, and the inner ring 17 rotates quietly and smoothly with the magnetic field to drive the rotation of the middle transmission shaft 9. The transmission shaft 9 rotates the outer rotating shaft 13 through the outer magnetic bearing 10, and the kinetic energy is transmitted to the outside through the transmission gear 12. Because the external stator 8 is installed at both ends of the device, and the central stator 18 is installed in the middle section, the strength of the magnetic field is enhanced, the force generated on the transmission shaft 9 is greater, and the kinetic energy transmitted to the outside is greater. The straightening end block installed in the middle can effectively straighten the middle section of the transmission shaft 9 to prevent the transmission shaft 9 from shifting during the kinetic energy transfer process. A position sensor 11 is also installed at the front end to display the position change of the center transmission shaft 9 in real time, which is convenient for users to supervise.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic levitation motor structure, comprising an outer shell (1), a plurality of external stators (8) are installed inside the outer shell (1), and a plurality of brass coils (6) are mounted on the upper ends of the external stators (8), and a fixing plate (7) is installed on the upper ends of the brass coils (6), characterized in that: The inner layer of the external stator (8) is installed with an outer ring shell (5), and a magnet block (4) is installed inside the outer ring shell (5). At the same time, a middle ring (3) is inserted inside the outer ring shell (5), and a plurality of steel blocks (2) are inserted inside the middle ring (3). An inner ring (17) is installed in the middle of the middle ring (3), and a movable bearing (16) is inserted in the middle of the inner ring (17).

2. A magnetic levitation motor structure according to claim 1, characterized in that: A transmission shaft (9) is installed in the middle of the movable bearing (16), and a partition (15) is installed on the outer surface of the transmission shaft (9), and a magnetic bearing (10) is connected to the surface of the partition (15).

3. A magnetic levitation motor structure according to claim 2, characterized in that: The upper end surface of the magnetic bearing (10) is provided with a cover plate (14), and a position sensor (11) is installed at the front end of the cover plate (14), and a rotating shaft (13) is assembled at the front end of the transmission shaft (9).

4. A magnetic levitation motor structure according to claim 3, characterized in that: A transmission gear (12) is provided at the front end of the rotating shaft (13).

5. The magnetic levitation motor structure according to claim 4, characterized in that: A centrally placed stator (18) is assembled inside the outer shell (1), and a straightening end block is installed on the outer surface of the transmission shaft (9).

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