A spherical magnetic coupling transmission device

Abstract

The present invention discloses a spherical magnetic coupling transmission device, which mainly includes an active input rotating device, a passive output rotating device, 26 cylindrical permanent magnets, a hollow copper ball, and a balancing device. The input rotating device consists of an input shaft, two input spherical shells, and 26 cylindrical permanent magnets, which are connected by four bolts. The 26 permanent magnets are arranged alternately on the circumferential surface of the sphere. The magnetic pole directions of the permanent magnets are selected to be arranged alternately in the same direction as the permanent magnet rows. The input spherical shell is provided with cylindrical holes for arranging the permanent magnets. The passive rotating body consists of a spherical copper shell and a spherical yoke, which is fixed to the output shaft by screws. The active input rotating device and the passive output rotating device can rotate freely and independently. When the active input rotating device rotates, the alternating magnetic field generates eddy currents on the passive output rotating device using the principle of magnetic coupling transmission. At the same time, the eddy currents generate an anti-inductive magnetic field that interacts with the electromagnetic field, so that the passive rotating body rotates in the same direction as the active rotating body, thereby achieving transmission. The air gap between the fixed output device and the input device is achieved through the balancing device, while the transmission direction can be freely changed within the range of ±30°, further achieving non-contact transmission and multi-angle transmission.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic coupling transmission, and in particular to a novel magnetic coupling transmission method. Background Art

[0002] Magnetic couplings can achieve contactless connection to transmit torque, so they have the advantages of maintenance-free, high efficiency and energy saving, stability and reliability, and overload protection on various load devices with different characteristics.

[0003] Traditional mechanical transmission structures mainly include gear structures, pulley mechanisms, chain structures, and worm gear structures. These transmission mechanisms are directly and rigidly connected to the load, resulting in friction, wear, vibration, and noise during the transmission process. The permanent magnet eddy current speed regulator is a non-contact speed regulation device developed based on the principle of electromagnetic induction. Its main function is to achieve motion and power transmission between the motor drive shaft and the load output shaft in the motion system. Its working principle is that when the input shaft drives the permanent magnet disk to rotate, there is a speed difference between the input shaft and the output shaft. The copper disk cuts the magnetic flux lines emitted by the permanent magnet in the permanent magnet disk, generating an induced electromotive force and generating eddy currents in the copper disk. The eddy currents generate an anti-inductive magnetic field, which interacts with the magnetic field generated by the permanent magnet, thereby achieving torque transmission between the two and driving the output shaft to rotate.

[0004] Currently, magnetic coupling transmissions are mainly of the cylinder and disc types, and there is no device that can realize circumferential multi-angle magnetic coupling transmission. In order to solve the above problems, the present invention proposes a spherical magnetic coupling transmission device, which mainly has an active input rotating device and a passive output rotating device, both of which rotate freely and independently. When the active input rotating device rotates, the alternating magnetic field will generate eddy currents on the passive output rotating device by utilizing the principle of magnetic coupling transmission. At the same time, the eddy currents generate an anti-inductive magnetic field that interacts with the electromagnetic field, so that the passive rotating body rotates in the same direction as the active rotating body to realize transmission. The air gap between the fixed output device and the input device is achieved through a balancing device, and the transmission direction can be freely changed within the range of ±30°, further realizing non-contact transmission and multi-angle transmission. The transmission range and universality are improved. Summary of the Invention

[0005] The purpose of the present invention is to provide a spherical magnetic coupling transmission device with good integrity. In terms of its function, the spherical magnets are arranged in an interlaced manner, and the non-contact transmission is more practical and has higher operating efficiency.

[0006] When the active rotating body rotates, the staggered magnets on the outer spherical shell generate a larger electromagnetic field. The alternating magnetic field will generate eddy currents on the copper ball of the passive rotating body. At the same time, the eddy currents generate an anti-inductive magnetic field that interacts with the electromagnetic field, causing the passive rotating body to rotate in the same direction as the active rotating body, realizing magnetic transmission.

[0007] The present invention is characterized in that the active rotating device consists of an outer spherical shell and 26 cylindrical permanent magnets, and the cylindrical permanent magnets are fixed in cylindrical grooves on the outer spherical shell by gluing; the outer spherical shell is connected to the motor by bolts; because the active rotating device causes the passive rotating device to cut the magnetic flux lines through high-speed rotation, the inner magnetic poles and the outer magnetic poles of each group are designed to be alternately arranged; the working efficiency and working stability of the device are improved.

[0008] The present invention is also characterized in that the passive rotating device is composed of a copper ball and a spherical yoke, which is fixed to the output shaft by screws. The function of the spherical yoke is to cut the magnetic lines of force generated by the permanent magnet to generate eddy currents in the copper ball and then generate an anti-inductive magnetic field that interacts with the electromagnetic field, thereby achieving the purpose of contactless power transmission; the spherical yoke is attached to the copper ball, and the spherical yoke can increase the magnetic force and stabilize the transmission.

[0009] The present invention is further characterized by a threaded hole in the outer spherical shell for connection to an XY balancing device via bolts. The XY balancing device also has a threaded through hole for connection to a YZ balancing device. The YZ balancing device is connected to the output shaft and is connected to the output shaft via a set screw. This controls radial movement of the output shaft without hindering axial rotation, thereby achieving air gap positioning between the active selector and the passive rotation device. Both balancing devices also control the circumferential angular movement of their output shafts, enabling multi-directional adjustment within ±30°.

[0010] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:

[0011] A spherical magnetic coupling transmission device is characterized by comprising an active rotating device, a passive rotating device, an input shaft, bolts, an outer spherical shell, a copper ball, a spherical yoke, an XY plane balancing device, a YZ plane balancing device, a set screw, an output shaft, and a permanent magnet. The outer spherical shell is connected to the motor via bolts, cylindrical permanent magnets are arranged in an alternating pattern on the outer spherical shell, the copper balls and the spherical yoke are connected to the output shaft via screws, the XY plane balancing device is connected to the outer spherical shell via bolts, and the YZ plane balancing device is connected to the XY plane balancing device via bolts. The active rotating device and the passive rotating device can rotate freely and independently. When the active rotating body rotates, the alternating magnetic field generates eddy currents on the passive rotating body. The eddy currents simultaneously generate an opposing magnetic field that interacts with the electromagnetic field, causing the passive rotating body to rotate in the same direction as the active rotating body, thereby achieving contactless transmission.

[0012] In summary, the present invention has the following advantages compared with the prior art:

[0013] The spherical magnetic coupling transmission device discussed in this invention changes the traditional linear transmission method. Its spherical structure enables circumferential multi-angle transmission of the output shaft, greatly improving transmission direction and efficiency. A balancing device also ensures smooth transmission at different angles and controls the stability of the air gap. While the principle employed is that of magnetic coupling transmission, its spherical transmission method also achieves the advantages of traditional magnetic coupling transmission, namely overload protection and stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a spherical magnetic coupling transmission device proposed by the present invention;

[0015] Figure 2 A schematic diagram of the deflection angle of a spherical magnetic coupling transmission device proposed by the present invention;

[0016] Figure 3 This is a schematic structural diagram of the outer spherical shell proposed in the present invention;

[0017] Figure 4 This is the magnetic pole arrangement diagram of the spherical magnet proposed in the present invention;

[0018] Figure 5 This is a schematic diagram of the balancing device proposed by the present invention;

[0019] Figure 6 This is a schematic diagram of the output shaft proposed by the present invention;

[0020] Figure 7 A schematic diagram of the copper ball proposed in the present invention;

[0021] The parts in the patent of this invention are marked as follows: 1. input shaft, 2. bolt, 3. outer spherical shell, 4. copper ball, 5. spherical yoke, 6. XY plane balancing device, 7. plane balancing device, 8. screw, 9. output shaft, 10. permanent magnet. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific embodiments and illustrations.

[0023] The present invention Figure 1As shown, a spherical magnetic coupling transmission device mainly includes an input shaft (1), a bolt (2), an outer spherical shell (3), a copper ball (4), a spherical yoke (5), an XY plane balancing device (6), a YZ plane balancing device (7), a set screw (8), an output shaft (9), and a permanent magnet (10). As shown in the figure, the input shaft (1) is connected to the outer spherical shell (3) through the bolt (2). The outer spherical shell (3) is provided with a threaded hole so that the through hole provided on the horizontal surface of the XY plane balancing device (6) is connected to the outer spherical shell through the bolt, and the YZ plane balancing device (7) is provided with a through hole in the vertical direction and is connected to the XY plane balancing device (6) through the screw. The slots on the outer spherical shell (3) are used to fix the permanent magnet (10) by gluing. The copper ball (4) and the spherical yoke (5) are provided with through holes, which are connected to the through holes on the output shaft (9) by screws. In addition, the output shaft (9) is connected to the YZ plane balancing device (7) by means of set screws and radially limited by the stepped shaft on the output shaft, while ensuring that the air gap between the active input rotating device and the passive output rotating device does not hinder the axial rotation.

[0024] The present invention Figure 2 As shown, a spherical magnetic coupling transmission device has a multi-directional adjustment of the maximum circumferential transmission angle within ±30°.

[0025] The present invention Figure 3 As shown, the outer shell (3) of a spherical magnetic coupling transmission device is processed into two halves for easy installation, and a slot is opened on the spherical surface for mounting a fixed permanent magnet (10).

[0026] The present invention Figure 4 As shown, the distribution of magnetic poles when a permanent magnet (10) is installed on a spherical magnetic coupling transmission device.

[0027] The present invention Figure 5 As shown, an XY plane balancing device (6) of a spherical magnetic coupling transmission device has a through hole on its horizontal surface and is connected to the outer spherical shell (3) by bolts to achieve free movement of the XY plane. The XY plane balancing device (6) has a threaded hole on its vertical surface so that the YZ plane balancing device (7) can be connected by bolts to achieve free movement of the YZ plane. The YZ plane balancing device (7) is connected to the output shaft (9) by a screw connection method and fits with the stepped shaft on the output shaft (9). By this method, the output shaft (9) can achieve multi-degree-of-freedom steering, and the air gap between the active selection device and the passive rotation device remains unchanged.

[0028] The present invention Figure 6As shown, the output shaft (9) of a spherical magnetic coupling transmission device adopts a spherical end surface, wherein the internal structure schematic diagram is shown in the figure, and a through hole is opened on it for connecting the copper ball (4) and the spherical yoke (5). The shaft is provided with a stepped shaft for connecting the YZ plane balancing device (7) to limit the air gap between the active selection device and the passive rotation device.

[0029] The present invention Figure 6 As shown, a copper ball (4) of a spherical magnetic coupling transmission device is processed in a half-edge manner, and a through hole is opened on the copper ball (4) for connecting to an output shaft (9) for fixing.

[0030] The technical solution adopted by the present invention to solve the above technical problems is: the motor is connected to an active optional device. When the active rotating device rotates, the permanent magnets (10) arranged alternately on the outer spherical shell (3) generate an alternating magnetic field by utilizing the magnetic coupling transmission principle, which generates eddy currents on the copper ball (4). At the same time, the eddy currents generate an anti-inductive magnetic field that interacts with the magnetic field, so that the passive rotating body rotates in the same direction as the active rotating body to achieve transmission. At the same time, due to its spherical structure and contactless transmission, it can be achieved through a balancing device, and the transmission direction can be freely changed within an angle range of ±30°.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A spherical magnetic coupling transmission device, characterized in that: The invention relates to an active input rotation device and a passive output rotation device, comprising an input shaft (1), a bolt (2), an outer spherical shell (3), a copper ball (4), a spherical yoke (5), an XY plane balancing device (6), a YZ plane balancing device (7), a set screw (8), an output shaft (9), and a permanent magnet (10). The input shaft (1) is connected to the outer spherical shell (3) through a bolt (2). The XY plane balancing device (6) has a through hole on its horizontal surface and is connected to the outer spherical shell through a screw. The YZ plane balancing device (7) has a through hole in its vertical direction and is connected to the XY plane balancing device (6) through a screw. The permanent magnet (10) is fixed to the outer spherical shell (3) by gluing. The holes opened on the outer spherical shell (3) are used for staggered magnetic pole installation. The copper ball (4) and the spherical yoke (5) are provided with through holes and connected to the output shaft (9) by screws. The output shaft is connected to the YZ plane balancing device (7) by fastening screws and is limited by the stepped shaft on the output shaft, thereby ensuring the air gap between the active input rotating device and the passive output rotating device. The permanent magnet (10) is fitted with the spherical surface through the cylindrical hole opened on the outer spherical shell (3) to achieve staggered magnetic field on the spherical surface. The outer spherical shell (3) has a bolt hole at the bottom to connect the input shaft with the bolt. The other end of the outer spherical shell has an opening with a circumference of 60 degrees for realizing the circumferential rotation angle of the output shaft.

2. A spherical magnetic coupling transmission device according to claim 1, characterized in that: the XY plane balancing device (6) has a through hole on its horizontal surface to realize the free movement of the XY plane, and the through hole on the vertical surface allows the YZ plane balancing device (7) to be connected to realize multi-degree-of-freedom steering and fix the starting position.

3. A spherical magnetic coupling transmission device according to claim 1, characterized in that: one end of the output shaft (9) is processed with a spherical surface and has a through hole, a copper ball (4), and a spherical yoke (5), which are connected and fitted to the spherical surface by screws, and the other end is processed with a stepped shaft for position fixation, and by connecting a YZ surface balancing device (7), the air gap between the outer spherical shell (3) and the copper ball (4) is fixed and the circumferential angle movement is achieved.

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