Normal distribution type precise adjustable magnetic eddy current induction power transmission device

Abstract

The invention discloses a normal distribution type precise adjustable magnetic eddy current induction power transmission device which comprises a first connecting unit, a second connecting unit and a magnetic base body, the magnetic base body comprises a driving motor, a first driven plate, a second driven plate and a plurality of sets of magnetic assemblies, and the driving motor is connected with the first driven plate; a plurality of arc-shaped grooves are formed in the first driven plate in the circumferential direction, the second driven plate is arranged opposite to the first driven plate, a plurality of sliding grooves corresponding to the arc-shaped grooves are formed in the second driven plate, and the two ends of the magnetic assemblies are arranged in the arc-shaped grooves and the sliding grooves of the first driven plate respectively. According to the scheme, axial movement adjustment does not need to be carried out, the technical problems that in the axial cantilever process, power transmission is unbalanced, rigidity becomes poor and the like are solved, and the reliability of the magnetic coupling structure is greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of mechanical manufacturing technology, and specifically to a normally distributed, precisely adjustable eddy current induction power transmission device. Background Art

[0002] Generally, couplings are rigidly connected, and include two parts, one part connected to the driving shaft, and the other part connected to the driven shaft, and the other end is driven to rotate by driving one end. Since the two parts of the coupling are rigidly connected, a certain amount of noise and torque will be generated, which will have a certain impact on the equipment. Therefore, in response to this technical problem, the prior art proposes a magnetic coupling, which flexibly connects the two parts through magnetism by setting a magnetic assembly on the two parts or one of them, and rotates one end to drive the other end to rotate through magnetism. Thus, the magnetic coupling can achieve non-contact between the two connection surfaces, thereby avoiding the torque generated by the rigid connection between the two connection surfaces to have a certain impact on the equipment, and also avoiding the problem of high noise.

[0003] During application, the magnetic coupling changes the magnitude of the magnetic force and thus adjusts the torque by adjusting the axial distance of the moving surface at one end relative to the other end. Axially moving the magnet or magnetic conductor will cause a series of technical problems such as the rotor cantilevering too long on the moving shaft, reciprocating motion causing power imbalance, and poor rigidity reliability.

[0004] The existing magnetic coupling has a technical problem of low reliability due to the above-mentioned technical problems. Therefore, it can be seen that how to improve the reliability of the magnetic coupling structure is a problem to be solved in the art. Summary of the invention

[0005] In view of the technical problem that the existing magnetic coupling has low reliability due to the above-mentioned technical problems, the purpose of the present invention is to provide a normal distributed precisely adjustable eddy current induction power transmission device, which can solve the technical problems existing in the existing magnetic coupling, improve the reliability of the magnetic coupling structure, and effectively overcome the problems existing in the prior art.

[0006] In order to achieve the above-mentioned objectives, the present invention provides a normally distributed, precisely adjustable eddy current induction power transmission device, comprising a first connecting unit, a second connecting unit and a magnetic substrate arranged in the first connecting unit, the magnetic substrate comprising a driving motor, a first driven plate, a second driven plate and a plurality of groups of magnetic assemblies, the driving motor drivingly connects the first driven plate, the first driven plate is provided with a plurality of arc grooves along the circumferential direction, the second driven plate is arranged relative to the first driven plate, a plurality of slide grooves are provided in the second driven plate corresponding to the plurality of arc grooves, the two ends of the plurality of groups of magnetic assemblies are respectively arranged in the arc groove and the slide groove of the first driven plate, the first driven plate is driven to rotate by the driving motor, and the arc groove can drive the magnetic assembly to move radially along the slide groove relative to the second connecting unit during the rotation process.

[0007] Furthermore, the plurality of arc-shaped grooves are distributed circumferentially along the first driven plate and are coaxially arranged.

[0008] Furthermore, the magnetic assembly includes a slider and a magnet, the first end of the slider passes through the arc groove, and the second end of the slider passes through the second driven plate and is connected with the magnet.

[0009] Furthermore, the first end of the sliding block passes through the arc-shaped slot and a limiting plate is provided at the rear end thereof for limiting the magnetic assembly in the arc-shaped slot.

[0010] Furthermore, when the arc-shaped groove rotates circumferentially, the arc-shaped edge of the arc-shaped groove will generate pressure on the sliding block, thereby driving the sliding block to move along the sliding groove.

[0011] Furthermore, the sliding groove is a radial groove arranged relative to the second connecting unit.

[0012] Furthermore, the cross section of the magnet is an arc-shaped structure.

[0013] Furthermore, when the magnet moves radially along the slide groove relative to the second connecting unit, adjacent magnets cooperate to form a cylindrical structure that can cover the second unit.

[0014] Furthermore, the cross section of the magnet is a polygonal structure.

[0015] The normally distributed, precisely adjustable eddy current induction power transmission device provided by the present invention drives the magnetic assembly on one end of the coupling to move radially back and forth relative to the other part of the coupling to change the distance between the magnetic assembly and the other part of the coupling, thereby accurately adjusting the relative torque force. This structure does not require axial movement adjustment, avoids technical problems such as axial cantilever process, unbalanced power transmission, and rigidity degradation, and greatly improves the reliability of the magnetic coupling structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a cross-sectional view of the overall structure of the normal distributed, precisely adjustable eddy current induction power transmission device;

[0018] Figure 2 Schematic diagram of the structure of the first driven plate in the normal distributed precision adjustable eddy current induction power transmission device;

[0019] Figure 3 It is a schematic diagram of the structure of the magnetic assembly in the normal distributed precision adjustable eddy current induction power transmission device;

[0020] Figure 4 Schematic diagram of the structure of the second driven plate in the normal distributed precision adjustable eddy current induction power transmission device;

[0021] Figure 5 This is a schematic diagram of the motion state of the magnetic assembly in the normal distributed, precisely adjustable eddy current induction power transmission device.

[0022] Figure 6 This is a cross-sectional schematic diagram of the magnet in the normally distributed, precisely adjustable eddy current induction power transmission device.

[0023] The following is a description of the components in the accompanying drawings:

[0024] 100. First connecting unit 200. Second connecting unit 300. Magnetic substrate 400. Driving shaft 500. Driven shaft 310. First driven plate 320. Second driven plate 330. Magnetic assembly 340. Driving motor 311. Arc groove 321. Sliding groove 331. Sliding block 332. Limiting plate 333. Magnet. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0026] In response to the technical problem that the existing magnetic coupling has low reliability due to the above-mentioned technical problems, the present invention provides a normally distributed, precisely adjustable eddy current induction power transmission device, which drives the magnetic assembly on one end of the coupling to move radially back and forth relative to the other part of the coupling to change the distance between the magnetic assembly and the other part of the coupling, thereby accurately adjusting the relative torque force. This structure does not require axial movement adjustment, avoids the technical problem of a large radial working space, and greatly improves the reliability of the magnetic coupling structure.

[0027] The invention provides a normally distributed, precisely adjustable eddy current induction power transmission device, see Figure 1 , which includes a first connecting unit 100, a second connecting unit 200 and a magnetic matrix 300, wherein the magnetic matrix 300 is arranged in the first connecting unit 100, and the first connecting unit 100 is connected to the active shaft 400, and the second connecting unit 200 is connected to the driven shaft 500, the first connecting unit 100 and the second connecting unit 200 are connected by magnetic attraction, and the first connecting unit 100 is rotated by the active shaft 400, and the second connecting unit 200 and the driven shaft 500 connected to the second connecting unit 200 can be driven to rotate by the magnetic matrix in the first connecting unit 100.

[0028] The second connection unit 200 connected to the driven shaft 500 is not limited in this solution and can be a metal block or a metal plate, etc., which can be magnetically connected to the magnetic substrate 300 in the first connection unit 100, and the specific method can be determined according to actual conditions.

[0029] The first connection unit 100 is connected to the driving shaft 400 , and the driving shaft 400 can drive the first connection unit 100 and the magnetic base 300 disposed in the first connection unit 100 to rotate synchronously as a whole.

[0030] The magnetic base 300 is disposed in the first connecting unit 100 and is used to generate magnetic attraction with the second connecting unit 200 to drive the second connecting unit 200 to rotate, wherein the magnetic base 300 includes a driving motor 340, a first driven plate 310, a second driven plate 320 and a plurality of magnetic assemblies 330.

[0031] The center point of the first driven plate 310 is connected to the transmission shaft of the driving motor 340 , and the rotation of the transmission shaft can drive the first driven plate 310 to rotate in a corresponding direction.

[0032] See also Figure 2 A number of arc grooves 311 are distributed on the first driven plate 310 corresponding to the number of the groups of magnetic assemblies 300 . The arc grooves 311 are distributed circumferentially along the first driven plate 310 and are coaxially arranged.

[0033] The arc groove 311 is used to set the magnetic assembly 330, and several groups of magnetic assemblies 330 are respectively set in each arc groove 311. Figure 3Each group of magnetic assemblies 330 includes a slider 331, a limit plate 332 and a magnet 333. The first end of the slider 331 is set through the arc groove 311, and the limit plate 332 is set at the end to limit the magnetic assembly 330 in the arc groove 311. The second end of the slider 331 passes through the second driven plate 320 and is connected with the magnet 333. The connection between the first driven plate 310 and the second driven plate 320 is realized through the slider 331.

[0034] Two sides of the second driven plate 320 are respectively disposed opposite to the first driven plate 310 and the second connecting unit 200 , and the second driven plate 320 is coaxially disposed with the first driven plate 310 .

[0035] See also Figure 4 The second driven plate 320 is arranged relative to the second connecting unit 200 and is provided with a plurality of sliding grooves 321 on the second driven plate 320 corresponding to the plurality of arc grooves 331 on the first driven plate 310. The sliding grooves 321 are radial grooves arranged relative to the second connecting unit 200. The plurality of sliding grooves 321 correspond one-to-one to the arc grooves 311 on the first driven plate 310. The first end of the slider 331 is arranged to pass through the arc groove 311 of the first driven plate 310, and the second end is arranged to pass through the sliding groove 321 of the second driven plate 320 and is connected to the magnet 333.

[0036] See also Figure 5 When the transmission shaft of the driving motor 340 drives the first driven plate 310 to rotate, its arc groove 311 rotates relative to the slider 331. Since the second end of the slider 331 passes through the slide groove 321, the two ends of the slide groove 321 limit the slider 331. Therefore, when the transmission shaft of the driving motor 340 drives the first driven plate 310 to rotate, the slider 331 cannot rotate along the arc groove 311 due to the limitation of the slide groove 321. At the same time, when the arc groove 311 rotates circumferentially, the arc edge of the arc groove 311 will generate pressure on the slider 331, which can drive the slider 331 to move along the slide groove 321. Therefore, the magnet 333 connected to the slider 331 can be driven to move back and forth radially relative to the second connecting unit 200 to accurately adjust the relative torque between the two parts of the coupling.

[0037] It should be noted here that the cross-section of the magnet 333 in this scheme is preferably an arc-shaped structure. When several magnets 333 move radially synchronously relative to the second connecting unit 200, adjacent magnets 333 can cooperate to form a cylindrical structure that can cover the second connecting unit 200, thereby ensuring the reliability of adjusting the relative torque force between the two parts of the coupling.

[0038] The cross-sectional structure of the magnet 333 is not limited in this solution. As an example, it can be Figure 6The L-shaped structure may also be a polygonal structure, and the choice of the specific structure may be determined according to actual conditions.

[0039] Based on the normal distributed precisely adjustable eddy current induction power transmission device constructed based on the above scheme, the working process of the device in a specific application is illustrated below by way of example. It should be noted here that the working process here is only an example and does not constitute a limitation to the present scheme.

[0040] First, when the torque between the couplings needs to be increased, the transmission shaft of the driving motor 340 drives the first driven plate 310 to rotate clockwise. At this time, the arc groove 311 on the first driven plate 310 rotates clockwise relative to the slider 331 synchronously.

[0041] When the arc groove 311 on the first driven plate 310 moves clockwise, the arc edge on the upper part of the arc groove 311 will press down relative to the slider 331, driving the slider 331 to move downward along the slide groove 321, shortening the distance between the second connecting unit 200 of the coupling, thereby increasing the torque between the couplings.

[0042] Likewise, on the contrary, when the torque between the couplings needs to be reduced, the transmission shaft of the driving motor 340 drives the first driven plate 310 to rotate counterclockwise. At this time, the arc groove 311 on the first driven plate 310 rotates counterclockwise synchronously relative to the slider 331 .

[0043] When the arc groove 311 on the first driven plate 310 moves counterclockwise, the arc edge at the bottom of the arc groove 311 will be squeezed upward relative to the slider 331, driving the slider 331 to move upward along the slide groove 321, increasing the distance between the second connecting unit 200 of the coupling, thereby reducing the torque between the couplings.

[0044] The normally distributed, precisely adjustable eddy current induction power transmission device formed by the above-mentioned scheme drives the magnetic assembly on one end of the coupling to move radially back and forth relative to the other part of the coupling to change the distance between the magnetic assembly and the other part of the coupling, thereby accurately adjusting the relative torque force. This structure does not require axial movement adjustment, avoids technical problems such as axial cantilever process, unbalanced power transmission, and deterioration of rigidity, and greatly improves the reliability of the magnetic coupling structure.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A normally distributed, precisely adjustable eddy current induction power transmission device, comprising a first connecting unit and a second connecting unit, characterized in that: It also includes a magnetic matrix arranged in the first connecting unit, the magnetic matrix includes a driving motor, a first driven plate, a second driven plate and several groups of magnetic assemblies, the driving motor drives and connects the first driven plate, the first driven plate is provided with several arc grooves along the circumferential direction, the second driven plate is arranged relative to the first driven plate, and several slide grooves are provided on the second driven plate corresponding to the several arc grooves, the two ends of the several groups of magnetic assemblies are respectively arranged in the arc groove and the slide groove of the first driven plate, the first driven plate is driven to rotate by the driving motor, and the arc groove can drive the magnetic assembly to move radially along the slide groove relative to the second connecting unit during the rotation process.

2. A normally distributed, precisely adjustable eddy current induction power transmission device according to claim 1, characterized in that: The plurality of arc-shaped grooves are distributed circumferentially along the first driven plate and are coaxially arranged.

3. The normally distributed, precisely adjustable eddy current induction power transmission device according to claim 1, characterized in that: The magnetic assembly includes a slider and a magnet. The first end of the slider passes through the arc groove, and the second end of the slider passes through the second driven plate and is connected with the magnet.

4. A normally distributed, precisely adjustable eddy current induction power transmission device according to claim 3, characterized in that: The first end of the sliding block passes through the arc groove and a limiting plate is provided at the rear end thereof for limiting the magnetic assembly in the arc groove.

5. The normally distributed, precisely adjustable eddy current induction power transmission device according to claim 1, characterized in that: When the arc-shaped groove rotates circumferentially, the arc-shaped edge of the arc-shaped groove will generate pressure on the sliding block, which can drive the sliding block to move along the sliding groove.

6. A normally distributed, precisely adjustable eddy current induction power transmission device according to claim 5, characterized in that: The sliding groove is a radial groove arranged relative to the second connecting unit.

7. The normally distributed, precisely adjustable eddy current induction power transmission device according to claim 5, characterized in that: The cross section of the magnet is an arc-shaped structure.

8. The normally distributed, precisely adjustable eddy current induction power transmission device according to claim 7, characterized in that: When the magnet moves radially along the slide groove relative to the second connecting unit, adjacent magnets cooperate to form a cylindrical structure that can cover the second unit.

9. The normally distributed, precisely adjustable eddy current induction power transmission device according to claim 7, characterized in that: The cross section of the magnet is a polygonal structure.

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