WO2015013846A1

WO2015013846A1 - Flexible power transmission device

Info

Publication number: WO2015013846A1
Application number: PCT/CN2013/001538
Authority: WO
Inventors: 殷秀银; 盛振新
Original assignee: 秦维
Priority date: 2013-07-29
Filing date: 2013-12-11
Publication date: 2015-02-05

Abstract

A flexible power transmission device. A first shaft (18) and a second conductor plate (4) are connected, a connecting device connects a second conductor plate (4) and a first conductor plate (20) together to form a rigid unit, an inner cylinder conductor fixing tube (5, 32) and an outer cylinder conductor fixing tube (8, 35) on the same axis are respectively disposed on the second conductor plate (4) and the first conductor plate (20), an inner cylinder conductor (6, 33) is disposed on the outer wall of the inner cylinder conductor fixing tube (5, 32), an outer cylinder conductor (7, 34) is disposed on the inner wall of the outer cylinder conductor fixing tube (8, 35), and there is a gap between the inner cylinder conductor (6, 33) and the outer cylinder conductor (7, 34). The inner cylinder conductor (6, 33) and the outer cylinder conductor (7, 34) have good conductivity and magnetic permeability, a permanent magnets (22, 36) is respectively disposed at each side of a permanent magnet wheel (21), one end of the permanent magnet (22, 36) is disposed between the inner cylinder conductor (6, 33) and the outer cylinder conductor (7, 34), and the permanent magnet wheel (21) and the second shaft (1) are connected. This device can transfer a large torque, and the transmission is stable.

Description

Flexible power transmission device

[0001] The present invention relates to a flexible power transmission device, in the field of electromechanical transmission. Background technique

[0002] In the existing mechanical transmission system, the connection between the motor and the load device is divided into a rigid and flexible type. Rigid couplings such as various mechanical couplings, flexible couplings, mechanical spring couplings, fluid couplings, liquid-viscous couplings, etc. The rigid connection is characterized by the fact that the input and output rotates through the same twist, and the torque transmission efficiency is high. However, the installation is difficult to install, and the installation is difficult, and the vibration between the input and output devices is transmitted to each other, which produces a resonance effect and makes the device easy. If a fault occurs, the maintenance and operation cost increases. When the load device is stalled, the motor, the load, and the connected device may be damaged. When abnormal vibration occurs, it is difficult to find the vibration source, which is not conducive to solving the problem. Flexible coupling avoids many of the above problems. Hi' allows for a large range of centering misalignment, which reduces vibration generation and transmission to a certain extent. It has a certain flexible starting function, but the torque transmission efficiency is not very high.

[0003] The document of C 1 367 948 A discloses a patent for a permanent magnet coupling having an air gap of π Γ adjustment. As shown in Pavilion 6, the permanent magnet coupling has a permanent magnet rotor and an interacting conductor rotor to transfer power between the input shaft and the output shaft. The permanent magnet rotor disk has a plurality of permanent magnets embedded in the circumferential section. Both sides of the permanent magnet function to transmit torque, but the direction of force of the permanent magnet and the permanent magnet rotor is parallel to the axial direction, and the ffl area is limited, resulting in a small torque transmitted. If you want to transmit a large torque, increase the diameter of the conductor disk and the permanent magnet turntable, but the larger diameter cannot be allowed between the installations.

[0004] The document of CN101834513A discloses a patent for the invention of a series-type series permanent magnet governor. As shown in Fig. 7, the permanent magnet coupler includes a cylindrical conductor rotor and a cylindrical permanent magnet rotor, and the conductor rotor and the permanent magnet rotor are both of a two-stage series type. The action surface of the permanent magnet cylinder and the conductor cylinder is increased, but the action surface is only the outer surface side of the conductor cylinder, there is waste of the magnetic field, the transmission efficiency is lowered, and the transmission torque is not balanced.

[0005] The document of CM 0 174 120 A discloses the invention of a permanent magnet drive. As shown in the cabinets 8, 9, the permanent magnet coupling has a permanent magnet cylinder and a two-layer conductor cylinder, and the permanent magnet cylinder is placed between the two conductor cylinders to maintain an equal air gap with the inner and outer conductors. The permanent magnet cylinder is composed of a plurality of tile-shaped permanent magnets that are embedded in the circumferential section, and the magnetic poles of the adjacent permanent magnets are opposite. The inner and outer surfaces of the permanent magnet cylinder are all functioning, and the magnetic field is fully profited, but the permanent magnets are segmentally spaced, and the transmitted force is far less than the complete annular permanent magnet, and the force of the permanent magnet cylinder is asymmetric. The transmission torque is not smooth enough and the efficiency is limited.

[0006] In order to solve the above problems, it is necessary to provide an efficient flexible power transmission device capable of transmitting large torque, high power transmission stability, flexible starting, isolation vibration, and a certain overload protection function. Summary of the invention

[0007] In view of the above technical problems, the technical problem to be solved by the present invention is to provide a flexible power transmission device H capable of transmitting a large torque and having high power transmission stability.

[0008] The present invention adopts the following technical solutions to solve the above technical problem.

[0009] A flexible power transmission device includes a first shaft, a second shaft, a first connecting device, a connecting device, and a combination The turntable, the permanent magnet turntable, the first: the shaft is connected by the first connection a permanent magnet turntable, the permanent magnet turntable is composed of a non-ferromagnetic material, and the combination turntable comprises a second body plate, a first conductor disk, and a second connection device. a, the second connecting device ≤ connects the first conductor disk and the first body disk and causes the first body disk, the first body disk, and the third connecting device a to form a rigid element, and the first axis passes through the first connection The 3⁄4th-conductor disk is connected, the first-tf body plate is provided with an inner cylinder fixed cylinder and an outer cylinder ι 定 fixed cylinder on the Inj-axis, and the body plate is also provided with a The inner cylinder fixed cylinder and the outer cylinder fixed cylinder on the T-axis center, the inner cylinder body is provided with an inner cylinder body on the outer wall of the inner cylinder body, and the outer cylinder conductor is provided on the inner wall of the outer cylinder body fixing cylinder, the inner cylinder There is a gap between the conductor and the outer tube body, the inner cylinder body and the outer cylinder body have good conductive magnetic permeability, and each side of the permanent magnet turntable is provided with a permanent magnet, and the end of the permanent magnet body is mounted on the permanent magnet turntable. The other end a of the permanent magnet is in the middle of the inner tube conductor and the outer tube body, and the magnetic pole side M of the permanent magnet is perpendicular to the axis of the permanent magnet turntable.

C0010] Preferably, the third connecting device a can adjust the distance between the body plate and the body plate.

[001 1 ] Preferably, the permanent magnets are an integral cylinder, and the permanent magnets have an L-shaped, sector-shaped, rectangular or T-shaped cross section.

[0012] Preferably, the permanent magnets are arranged in a plurality of permanent magnets along a predetermined interval, and the permanent magnets have an L-shaped, fan-shaped, rectangular or T-shaped cross section.

[0013] Preferably: the permanent magnet turntable: the side permanent magnets are mounted on the permanent magnet turntable in a staggered manner.

[0014] Preferably, the permanent magnets are bonded to the permanent magnet turntable by means of medium bonding.

[0015] Preferably, the first connecting device comprises a first shaft hub and a first expansion: the first shaft hub is mounted on the first conductor plate, and the first shaft hub is connected to the first shaft, and the first expansion sleeve is mounted on the first shaft • Shaft hub 1⁄2 'between the -axis.

[0016] Preferably, the first connecting device comprises a second shaft hub and a second expansion joint, wherein the second shaft hub is mounted on the permanent magnet turntable, and the:: the shaft valley is connected to the first:: No.: The expansion is installed between the first shaft hub and the :: shaft.

[0017] Preferably, the first body plate and the first conductor plate are provided with ventilation holes.

[0018] Preferably, the permanent magnet turntable is provided with a ventilation hole.

[0019] Advantageous effects:

C0020] The invention realizes the contactless transmission of power, the coupling action area is large, the force is balanced, the large torque can be transmitted, the vibration is reduced, a certain axial eccentricity or turbulence is allowed, and the flexible movement can be determined. Overload protection capability. DRAWINGS

[0021] The cabinet 1 is a cross-sectional view of a flexible power transmission device.

[0022] The cabinet 2 is a partially enlarged view of the fixed cylinder portion of the flexible power transmission device.

[0023] 3 is a stereoscopic cabinet of a group turntable of a flexible power transmission device.

[0024] The cabinet 4 is a three-dimensional cabinet of a permanent magnet turntable of a flexible power transmission device.

[0025] The cabinet 5 is a side view of the second conductor disk of the flexible power transmission device fi.

[00263 6 is a cross-sectional view cabinet with an adjustable air gap permanent magnet coupling.

[0027] 7 is: a sectional view of the Φ-connected permanent magnet governor.

8 is a cross-sectional view of the permanent magnet driver.

[0029] 9 is a distribution of permanent magnets on the permanent magnet turntable of the permanent magnet drive.

[0030] The attached cabinet is marked as follows:

[0031] 1, the second axis: 2, the second inflated food; 3, the first: shaft hub; 4, the first: ^ body disk; 5, the inner simple conductor fixed cylinder; 6, the inner tube body: 7, outside Cylinder; 8, outer cylinder conductor 凼 simplification; 9, spacer bolt; 10, intermediate part; 11, nut; 12, end; 13, shackle; 14, combination turntable; 15, bolt; Shaft hub; 17, first - expansion; 18, the first axis; 19, the first - connection device S; 20, the first body disk; 21, permanent magnet turntable; 22, permanent magnet: 23, flat head bolt; 24, 蟝 bolt; 25, second connecting device; 26, venting hole; 27, second connecting device S; 28, trough; 29, ventilation hole; 30, bolt; 31, hole; 32, inner cylinder fixed cylinder; 33, inner cylinder; 34, outer cylinder conductor; 35, outer cylinder LSI fixed cylinder; Permanent magnets. detailed description

[0032] The following is a detailed description of the solution in conjunction with the annex.

[0033] For convenience of description, the "inner", "outer" and "external" and "external" terms referred to hereinafter are not intended to limit the structure of the present invention.

[0034] Working principle: the magnetic lines of the permanent magnets on the permanent magnet turntable pass through the corresponding conductors. When the two move relative to each other, the body tube cuts the magnetic lines of force, generates eddy currents on the surface of the body, and the eddy current generates an induced magnetic field. The magnetic field and the permanent magnetic field act in a three-phase manner, and the 'square-side rotation in the permanent magnet turntable and the body plate rotates to achieve the torque transmission.

[0035] As shown in the cabinets 1, 2, 3, 4, and 5: The flexible power transmission device B includes a group turntable 14, a permanent magnet turntable 21, a first axis 18, and a first - axis 1.

[0036] The combination turntable 14 includes a first body disk 4, a first body disk 20, and a third connecting device 27. The second conductor disk 4 and the first conductor disk 20 are concentric, and the ^ body disk 4 and the first conductor disk 20 pass through. The third connecting device 27 is connected and connected. The third connecting device S 27 includes a spacer bolt 9 and a nut 11. The second conductor disk 4 and the first conductor disk 20 are provided with a corresponding through hole uniformly arranged in the circumferential direction, and a spacer bolt 9 is installed between the corresponding through holes, and the spacer bolt 9 is used to make the second conductor disk 4 and the first conductor disk 20 are maintained in a parallel spaced relationship. One of the spacer bolts 9 has an intermediate body 10 and two threaded ends 12. The middle portion 10 has a diameter larger than the diameter of the through hole, and the inter-turn body 10 is located between the second body plate 4 and the first body disk 20. One end of the spacer bolt 9 is threaded through the through hole and extends out of the second body disk 4, the outer body plate 20, and the nut 11 is screwed onto the ribbed end portion 12 of the spacer bolt 9. The spacer bolt 9 and the :: body disk 4 and the first body disk 20 are sandwiched together to form a rigid element. The distance between the second conductor disk 4 and the second conductor disk 20 can be adjusted by adjusting the length of the intermediate body portion 10 of the spacer bolt 9. It is also possible to make the diameter of the intermediate body portion 10 of the spacer bolt 9 the same as the diameter of the threaded end portion 12, using a sleeve on the intermediate body portion 10 of the spacer bolt 9, the inner diameter of the tube being larger than the intermediate portion of the spacer bolt 9. The diameter of 10 is adjusted by adjusting the degree of the 3⁄4 tube: the distance between the conductor disk 4 and the first conductor disk 20.

[0037] The first conductor disk 20 is connected to the first shaft 18 via the first connection device 19. The first connecting device 19 includes a first shaft hub 16 and a first expansion joint 326. The first shaft hub 16 is mounted on the first conductor plate 20 by bolts 15, and the first shaft hub 6 is connected to the first shaft 18, and the first expansion. The tight 17 is mounted between the first-shaft hub 16 and the first shaft 18. When the torque transmitted by the flexible power transmitting device is large, the first shaft valley 16 can be fixed to the first shaft 18 by means of splicing. The permanent magnet turntable 21 is connected by the second connecting means 25: the shaft 1 is connected. The second connecting device 25 includes a first shaft hub 3 and a first: expansion joint 2, and the first-shaft hub 3 is mounted on the permanent magnet turntable 21 by bolts 24, and the second shaft 1 is connected to the second shaft 1 The expansion 3⁄4 is mounted between the second axle hub 3 and the:shaft 1. When the torque transmitted by the flexible power transmission device is large, the first shaft hub 3 1 1 may be fixed to the first shaft 1 by welding.

[0038] The second conductor disk 4 is mounted with an inner cylinder fixing cylinder 5 and an outer cylinder fixing cylinder 8, and the first conductor coil 20 is also provided with an inner body at a position 2 corresponding to the second conductor disk 4. The fixed cylinder 32 and the outer cylinder conductor fixing cylinder 35. The inner cylinder conductor fixing cylinders 5, 32 and the outer cylinder conductor fixing cylinders 8, 35 have an annular structure and have an L-shaped cross section. The inner cylinder fixing cylinders 5, 32 and the outer cylinder conductor fixing cylinders 8, 35 are concentric with the second conductor disc 4 and the second body disc 20. Inner tube body fixed cylinder 5, 32 1⁄2 ' The outer simplified holding cylinders 8, 35 may be a single cylinder, or a plurality of bodies may be arranged along the circumference at regular intervals. The L-shaped bottom of the inner cylinder fixing cylinder 5 is fixedly mounted on the inner side surface of the first body body 4 and the first conductor disk 20 by the tamper bolts 13, and the L-shaped bottom portion of the outer cylinder conductor fixing cylinders 8, 35 passes. The bolts 13 are fixedly mounted on the inner side faces of the first body plate 4 and the first-conductor disk 20, respectively, and the L-shaped protruding portions of the inner cylinder body fixing cylinders 5, 32 and the outer cylinder fixing cylinders 8, 35 are permanently magnetized. Turntable 21. There is a predetermined interval between the inner cylinder fixing cylinders 5, 32 and the outer cylinder fixing cylinders 8, 35.

The outer wall of the outer conductor fixing cylinders 8, 35 is attached with an annular outer body 7, 34, and the outer cylinders of the inner cylinder conductor fixing cylinders 5, 32 are attached with annular inner cylinders 6, 33. The outer cylinder conductor fixing cylinders 8, 35 and the outer cylinders 7, 34 are connected by a f-head bolt 23, and the inner cylinder body fixing cylinders 5, 32 and the inner cylinders 6, 33 are connected by a flat head bolt 23. There is a gap between the inner cylinders 6, 33 and the outer conductors 7, 34. The inner body 6 and 33 and the outer tube body 7 and 34 have magnetic properties for the conductor, and it is preferable to use copper as a material for production.

The ventilating holes 26 are evenly arranged in the circumferential direction on the second body plate 20 and the second conductor disk 4 to facilitate air flow and to dissipate heat to the inner tube conductors 6, 33 and the outer tube conductors 7, 34.

[0041] The permanent magnet turntable 21 is made of a non-ferromagnetic material, and may be a metal material or a non-gold material, and only has a certain strength and rigidity. The permanent magnet turntable 21 has a: -. side along the circumference | ή" 环形 has an annular groove 28. The permanent magnets 22, 36 are annular structures, and the permanent magnets 22, 36 may be a unitary cylinder, or a plurality of permanent magnets 22, 36 may be arranged circumferentially at regular intervals. The permanent magnets 22, 36 have an L-shaped cross section, and may be a ^ shape, a rectangular shape, or a T shape. The L-shaped bottoms of the permanent magnets 22, 36 are mounted in the slots 28 of the permanent magnet turntable 21, and the permanent magnets 22, 36 on the side may be mounted on the permanent magnet turntable 21 in a left-hand staggered manner by bolts 30, or may be adhered through the medium. The connection means that the permanent magnets 22, 36 are bonded in the slots 28 of the permanent magnet turntable 21. The cross sections of the permanent magnets 22, 36 may also be T-shaped or rectangular. The magnetic pole directions of the permanent magnets 22, 36 are perpendicular to the axis of the permanent magnet turntable 21. The L-shaped projections of the permanent magnets 22, 36 extend between the inner and outer bodies 6, 33 and the outer cylinders 7, 34, and the L-shaped projections of the permanent magnets 22, 36 are located outside the inner cylinder Preferably, the gap between the conductors 6, 3: 3 and the outer tube conductors 7, 34 is equal to the gap between the inner tube conductors 6, 33 and the outer tube conductors 7, 34, respectively. The L-shaped projections of the permanent magnets 22, 36 have a predetermined gap with the first conductor disk 20 and the second conductor disk 4, respectively, which allows for a certain axial yaw. Iti is forced inside and outside the L-shaped convex portion of the permanent magnets 22, 36, and the permanent magnet turntable 21 is forced on both sides, that is, the inner cylinder conductors 6, 33 and the outer cylinder conductors 7, 34 cut magnetic lines of force on four sides. The strength of the cutting magnetic lines increases, and the torque transmitted by this solution increases. The action K degree of the L-shaped convex portion of the inner cylinder conductors 6, 33, the outer simple bodies 7, 34 and the L-shaped convex portions of the permanent magnets 22, 36 can be changed depending on the magnitude of the torque. By adjusting the K degree of the intermediate body 10 of the spacer bolt 9, the active area between the permanent magnet 22.36 and the inner cylinder conductors 6, 33 and the active area between the permanent magnets 22, 36 and the outer cylinders 7, 34 can be changed. Thereby changing the torque of the motor output. Ventilation holes 29 are circumferentially spaced apart on the permanent magnet turntable 10 to facilitate air circulation on the 10:: side of the permanent magnet turntable, thereby enhancing the heat dissipation effect.

[0042] The mountain is forced on both sides of the annular permanent magnets 22, 36, the permanent magnet turntable 21 is balanced, and the second shaft 1 or the first shaft 18 is effectively gripped. Compared with the one-sided force, the stability of the scheme is better and the vibration is reduced.

[0043] The center of the second body plate 4 is provided with a hole 31 having a larger diameter than the diameter of the first axis 1. This makes it easy to adjust the gap between the permanent magnets 22, 36 and the inner cylinder conductors 6, 33 and the gap between the permanent magnets 22, 36 and the outer cylinders 7, 34.

[0044] The first axis 18 and the first axis 1 ask the axis, which can be: an input shaft or an output shaft.

Claims

Claim

1. A flexible power transmission assembly a, including the first shaft (18), the first shaft (1), the first connection (19), the first: the connection S (25), the combination turntable (14), the permanent magnet turntable ( 21), the first axis (1) is connected by a: connection S (25) 4 permanent magnet turntable (21), and the permanent magnet turntable (21) is made of a non-ferromagnetic material, characterized in that the combination turntable (14) comprises The -: the conductor disk (4), the first body disk (20), the third connection device: g (27), the third connection device ί (27) the first: the conductor disk (4) and the first conductor disk ( 20) connected and the first body plate (4), the first conductor plate (20), the second connecting device (27) form a rigid element, and the first axis (18) passes through the first connection device S (19) 1⁄2 - the first disk (20) is connected, and the first-conductor disk (20) is provided with an inner cylinder fixing cylinder (32) and an outer conductor fixing cylinder (35) on the center-same-axis center, The first body plate (4) also has an inner cylinder conductor fixing cylinder (5) and an outer cylinder conductor ί3⁄4| fixed cylinder (8) on the concentric core, and the outer cylinder conductor fixing cylinder (5, 32) is provided on the outer wall. Inner conductor (6, 33), outer cylinder conductor fixed (8, 35) inner wall is provided with outer cylinder body (7, 3 4) There is a gap between the inner cylinder conductor (6, 33) and the outer simplified body (7.34), and the inner cylinder body (6, 33) and the outer cylinder body (7, 34) have good electromagnetism, and the permanent magnet turntable ( 21) Both sides are provided with a permanent magnet (22, 36), and the ends of the permanent magnets (22, 36) are mounted on the permanent magnet turntable (21) h, and the other ends of the permanent magnets (22, 36) are inside In the middle of the cylinder (6, 33) and the outer cylinder (7, 34), the magnetic pole direction of the permanent magnets (22, 36) is perpendicular to the axis of the permanent magnet turntable (21).

The power transmission device according to claim 1, characterized in that the third connecting means (27) adjusts the distance between the second conductor disk (4) and the first body disk (20).

3. The power transmission device a according to claim 1, wherein the permanent magnets (22, 36) are integral, and the permanent magnets (22, 36) have an L-shaped, sector-shaped, rectangular or cross-section. T shape.

4. The power transmission device according to claim 1, wherein the permanent magnets (22, 36) are arranged in a circumferential direction at a plurality of permanent magnets, and the cross sections of the permanent magnets (22, 36) are L-shaped, temple-shaped, rectangular or T-shaped.

The power transmission device according to claim 1, characterized in that: the permanent magnet turntable (21) - the side permanent magnets (22, 36) are mounted on the permanent magnet turntable (21) in a staggered manner. on.

6. The power transmission device according to claim 1, wherein the permanent magnets (22, 36) are bonded to the permanent magnet turntable (21) by a medium bonding method.

The power transmission device according to claim 1, characterized in that the first connecting device (19) comprises a first-axis hub (16) and a first expansion sleeve (17), and the first shaft hub (16) Mounted on the first conductor plate (20), the first shaft hub (16) is connected to the first shaft (18), and the first expansion (17) is mounted on the first shaft of the first shaft (16) 1⁄2' (18) ) between.

The power transmission device according to claim 1, characterized in that the first: connecting device (25) comprises: a: a shaft hub (3) and a second expansion 3⁄4 (2), the second shaft The wheel valley (3) is mounted on the permanent magnet turntable (21), and the first shaft hub (3) is connected to the second shaft (1), and the: expansion joint (2) is mounted on the first: shaft hub (3) ) 1⁄2|―: between axes (1).

The power transmission device according to claim 1, characterized in that the first body disk (4) and the body disk (20) are provided with air holes (26).

The power transmission device according to claim 1, characterized in that the permanent magnet turntable (21) is provided with a ventilation hole (29).