WO2023207003A1

WO2023207003A1 - Multi-set multi-disk multi-air-gap linked adjustment type magnetic coupler

Info

Publication number: WO2023207003A1
Application number: PCT/CN2022/128229
Authority: WO
Inventors: 杨超君; 杭天; 李典来; 丁逸飞; 朱继伟; 王剑
Original assignee: 江苏大学
Priority date: 2022-04-26
Filing date: 2022-10-28
Publication date: 2023-11-02
Also published as: CN114825856A

Abstract

Disclosed in the present invention is a multi-set multi-disk multi-air-gap linked adjustment type magnetic coupler, comprising multiple movably connected composite disks, each composite disk comprising a conductor rotor set and a permanent magnet rotor set, wherein the permanent magnet rotor set comprises two permanent magnet yoke iron disks connected to each other and movable relative to each other in an axial direction, and permanent magnets respectively arranged on two permanent magnet yoke iron disk surfaces; and the conductor rotor set comprises two conductor yoke iron disks fixedly connected to each other, and conductors respectively arranged on two conductor yoke iron disk surfaces. In the present invention, the conductor rotor sets are used as driving ends, the permanent magnet rotor sets are used as driven ends, and vice versa; each composite disk forms two air gap lengths and forms multiple sets of air gap lengths with other composite disks; in addition, a single set of driven end rotors are driven by a speed adjustment device to realize axial relative displacement, and multiple air gap lengths of the multi-set multi-disk magnetic coupler are subjected to linked adjustment, so that the purpose of speed adjustment or torque change of the magnetic coupler is realized. By means of the structure, a large electromagnetic torque and a high power can be obtained, and thus the structure can be applied to occasions where there is a large axial size but a limited radial size, such as on ocean platforms and large vessels.

Description

A multi-group, multi-disc, multi-air gap linkage-adjustable magnetic coupler

Technical field

The invention belongs to the field of transmission technology in mechanical engineering, and in particular is a multi-group multi-disc multi-air gap linkage-adjustable magnetic coupler.

Background technique

In my country, pump and fan loads account for a high proportion of energy consumption in motors. Adjusting the speed of the motor working machine through speed regulation is an energy-saving method. However, the high-order harmonics generated will cause various problems to the motor and power supply. adverse effects and difficult to repair. The new magnetic transmission device magnetic coupler has the advantages of maintenance-free, high efficiency and energy saving, stability and reliability, overload protection, etc., and is widely used in pumps and fans. However, in situations such as submarines and underwater tunnels where the axial size is large but the radial size is limited, the use of magnetic couplers will be limited, and compared with traditional couplers, the load capacity of magnetic couplers is not strong. Therefore, Reducing the radial length of the magnetic coupler and achieving high power and high torque output is an important research direction for its application on ocean platforms and large ships.

Patent 201610573976.7 discloses a new type of composite double-disk magnetic coupler, which includes two axially magnetized type I permanent magnet rotors, a radially magnetized type II permanent magnet rotor, two conductor rotors and a conductor Ring, from the input side, there are conductor rotor, type I permanent magnet rotor, type II permanent magnet rotor and outer ring conductor ring, type I permanent magnet rotor and conductor rotor. When the input shaft rotates, the conductor rotor and conductor ring are driven to rotate. The permanent magnet rotor drives the output shaft to rotate based on the principle of electromagnetic induction. Speed regulation is achieved by moving the permanent magnet rotor on the output shaft, adjusting the length of the air gap on both sides and the facing area of the permanent magnet in the middle. However, the permanent magnet yoke iron plate of this invention is only designed with rectangular through holes, and the installation arrangement of the permanent magnets cannot be changed according to the actual situation. Moreover, during speed regulation, the three sets of permanent magnet rotors can only move axially in one direction. The length of the air gap on both sides is inconsistent, which affects the electromagnetic torque generated.

Patent 201810872097.3 discloses a new type of adjustable-speed disc-type asynchronous magnetic coupler. The conductor rotor is installed on the transmission shaft. The main and driven sides of the conductor rotor are each equipped with a permanent magnet rotor. By moving the permanent magnets on both sides, The rotor makes the length of the air gap between the permanent magnet rotor and the conductor rotor change at the same time to achieve the purpose of speed regulation. However, the invention has only two sets of permanent magnet rotors, which can only form two sets of air gaps with the conductor rotors, and cannot continue to increase on this basis. Under the requirements of larger power use, the magnetic coupler can only move along the diameter of the rotor. The structural size is increased in the direction, making it difficult to use in situations where the radial size is limited.

Contents of the invention

In order to solve the deficiencies in the prior art, the present invention proposes a multi-group, multi-disk, multi-air gap linkage-adjustable magnetic coupler, which is composed of multiple groups of permanent magnet rotors, conductor rotors and a speed regulating device. The device drives a single set of permanent magnet rotors to move and drives other permanent magnet rotors to move, allowing multiple air gaps to be adjusted jointly to realize the speed regulation of the magnetic coupler and obtain larger electromagnetic torque and power. It can be applied to offshore platforms and large-scale Ships and other situations where the axial size is large but the radial size is limited.

The technical solutions adopted by the present invention are as follows:

A multi-group, multi-disc, multi-air gap linkage-adjustable magnetic coupler, including:

Input shaft;

Output shaft, the output shaft and the input shaft are coaxially arranged;

A plurality of composite disks are arranged on the output shaft in sequence, each composite disk includes a conductor rotor group, a permanent magnet rotor group, a rack and pinion mechanism and a spline sleeve;

The spline sleeve is sleeved on the output shaft and connected through a key;

The permanent magnet rotor group includes two oppositely arranged permanent magnet yoke iron plates and permanent magnets respectively arranged on the surfaces of the two permanent magnet yoke iron plates;

The conductor rotor group includes two opposite conductor yoke plates and conductors respectively arranged on the surfaces of the two conductor yoke plates;

In the same composite disk, the conductor yoke disk and the permanent magnet yoke disk and the permanent magnet and the conductor on the same side face each other one by one; and there is an air gap between the permanent magnet and the conductor;

In the same composite disk, one of the conductor rotor group and the permanent magnet rotor group serves as the active unit, and the other serves as the driven unit;

The power input end of the active unit is dynamically connected to the input shaft; the yoke plates in the same active unit and the yoke plates of adjacent active units are all fixedly connected;

The driven unit is set outside the spline sleeve and is spline-connected with the spline sleeve; the yoke plates in the same driven unit are connected through a rack and pinion mechanism; the adjacent driven units are are connected through a rocker slider mechanism;

The crank slider mechanism is connected to the power output end of the driven unit.

Further, the rack and pinion mechanism includes a first support disk, a rack and a gear; wherein the first support disk is set on the spline sleeve and is keyed to the spline sleeve, and is outside the first support disk. A limit block is provided on the surface, and two convex portions are provided on the limit block, and the two convex portions are staggered along the axial direction, and guide rods are respectively provided on the convex portions, and the guide rods are arranged along the axial direction; two racks are provided, One end of each rack is fixedly connected to the adjacent permanent magnet yoke iron plate, and a circular channel is opened at the other end of each rack; the guide rod is inserted into the circular channel of the rack; between the two racks there is The gears are meshed with two racks for transmission.

Further, a disc shell is set outside the first support disc, and the disc shell has slots corresponding to the limiting blocks. After the first support disc and the disc shell are assembled, the gears and racks will be limited in the circle. in the groove of the disk casing.

Further, the rocker slider mechanism includes an upper slider, a fixed base and a plurality of rockers; the fixed base is fixedly installed on the second support disc, the second support disc is sleeved on the output shaft, and the second support disc The disk and the output shaft are connected by a key; the fixed base is equipped with a support column, which is arranged along the radial direction of the second support disk; the upper slider is set on the support column, and the two sides of the fixed base facing the permanent magnet yoke iron disk Two sides are respectively hinged with one end of the first support member and one end of the second support member; the two sides of the upper slider facing the permanent magnet yoke iron plate are respectively connected with one end of the first rocker and one end of the second rocker. Hinged, the first rocker and the second rocker are respectively provided with chute; the other end of the first support member is inserted into the chute of the first rocker through a cylindrical pin, and the other end of the second support member is inserted into the second rocker through a cylindrical pin. In the chute of the rocker; the other end of the first rocker and the other end of the second rocker are respectively hinged with two adjacent permanent magnet yoke iron plates.

Further, the crank slider mechanism includes a double-row tapered roller bearing, a housing and a crank. The double-row tapered roller bearing is set on the outside of the outermost permanent magnet yoke iron plate at the output end, and a housing is provided on the outside of the double-row tapered roller bearing. , the shell is connected to the crank; the shell is connected to the fixed sleeve through a coil spring, the fixed sleeve is set on the output shaft, and the fixed sleeve and the output shaft are connected through a key.

Furthermore, all conductor yoke iron plates are connected in sequence through I-beams.

Furthermore, the conductor yoke plate is processed with yoke teeth distributed in an array along the circumferential direction, and fan-shaped slots distributed in an array along the circumferential direction are opened on the annular conductor; the fan-shaped slots and the yoke teeth cooperate with each other.

Further, the conductor is annular, an annular groove corresponding to the conductor is opened in the conductor yoke plate, the conductor is embedded in the annular groove of the conductor yoke plate, and the conductor yoke plate and the conductor are fixed by fasteners.

Further, the permanent magnets on the permanent magnet yoke iron plate are arranged in a single layer or in two layers along the radial direction.

Furthermore, the permanent magnets in each layer are arranged in alternating N and S poles or in a 90° Halbach array.

Beneficial effects of the present invention:

(1) In the present invention, based on the principle of electromagnetic induction, non-contact transmission of torque is achieved between the driving disk and the driven disk, which avoids problems such as friction, wear and vibration in the traditional transmission process, and reduces the risk of damage during the transmission process. Loss; realizes the separation of load and motor, and realizes functions such as light-load starting, overload protection and stepless speed change of the motor by adjusting the air gap length between the driving disk and the driven disk.

(2) The magnetic coupler of the present invention adopts a multi-group and multi-disc structure. It can provide power through the servo motor on the output end side, drive the crank slider mechanism and adopt a series of mechanical connections to achieve synchronization of multiple groups of permanent magnet rotors. Movement allows the air gaps between multiple sets of permanent magnet rotors and conductor rotors to be jointly adjusted to achieve speed regulation and high power and high torque output of the magnetic coupler.

(3) The magnetic coupler of the present invention adopts a multi-group multi-disc structure, which can effectively reduce the radial size, making the magnetic coupler suitable for situations where the axial size is large but the radial size is limited, so it can also be designed The smaller radial size of the permanent magnet makes the permanent magnet suitable for processing and manufacturing.

Description of drawings

Figure 1 is a schematic structural diagram of a multi-group multi-disc multi-air gap linkage-adjustable magnetic coupler of the present invention.

Figure 2 is the schematic diagram of speed regulation.

Figure 3 shows the working limit position diagram.

Figure 4 is a schematic diagram of the I-beam outer frame structure.

Figure 5 shows the permanent magnet rotor and conductor rotor diagram.

Figure 6 shows the spacing arrangement of the double-layer permanent magnets.

Figure 7 is a diagram of the double-layer permanent magnets arranged at intervals, the aluminum cage and the permanent magnet yoke iron plate.

Figure 8 is a diagram of the double-layer permanent magnet 90° Halbach array.

Figure 9 shows the double-layer permanent magnet 90° Halbach array aluminum cage and permanent magnet yoke iron plate.

Figure 10 shows the full arrangement of double-layer permanent magnets.

Figure 11 is a diagram of the spacing arrangement of permanent magnets.

Figure 12 shows the 90° Halbach array diagram of permanent magnets.

Figure 13 is a full arrangement diagram of permanent magnets.

Figure 14 is a diagram of a slotted disk conductor rotor.

Figure 15 is a diagram of a solid disc conductor rotor.

Figure 16 is a schematic structural diagram of the rack and pinion mechanism.

Figure 17 is a schematic structural diagram of the rocker slider mechanism.

Reference signs: 1. Input shaft; 2. Sleeve; 3. Shaft end cover; 4. Double-headed stud; 5. Conductor yoke plate one; 6. Conductor one; 7. Hexagonal head bolt; 8. Hexagonal Head nut; 9. Washer; 10. I-beam; 11. Conductor two; 12. Conductor yoke iron plate two; 13. Conductor yoke iron plate three; 14. Conductor three; 15. Conductor four; 16. Conductor yoke iron plate Four; 17. Permanent magnet yoke iron plate four; 18. Crank slider mechanism; 19. Housing; 20. Double row tapered roller bearing; 21. Coil spring; 22. Fixed sleeve; 23. Output shaft; 24. Flower Key sleeve two; 25. Permanent magnet four; 26. Rack and pinion mechanism two; 27. Permanent magnet yoke iron plate three; 28. Permanent magnet three; 29. Rocker slider mechanism; 30. Spline sleeve one; 31. Permanent magnet two; 32. Permanent magnet yoke iron plate two; 33. Rack and pinion mechanism one; 34. Permanent magnet yoke iron plate one; 35. Permanent magnet one; 36. Cross recessed countersunk head screws; 37. Cylindrical pin ; 38. Hexagon socket head screws; 39. Cage; 40. Hexagon socket head screws; 41. First support disc; 42. Rack; 43. Gear end cover; 44. Cross recessed countersunk head screws; 45. Connecting rod; 46. Gear; 47. Disc housing; 48. Cylindrical pin; 49. First rocker; 50. First support; 51. Upper slide; 52. Second rocker; 53. Second support; 54 , the second support disc; 55, fixed base; 56, fixed block; 57, support column; 58, limit block; 59, guide rod.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

A multi-group, multi-disk, multi-air gap linkage-adjustable magnetic coupler designed in this application is composed of multiple composite disks. In this embodiment, as shown in Figure 1, a coupling composed of two composite disks is combined. Magnetic coupler is explained.

The magnetic coupler shown in Figure 1 is composed of a composite disk I, a composite disk II and a speed regulating device. The two composite disks have the same structure. Each composite disk includes a conductor rotor group, a permanent magnet rotor group, a rack and pinion mechanism and a spline sleeve; there are 2 conductor yoke iron disks in a conductor rotor group, and each conductor yoke iron plate has They are all equipped with conductors; there are two permanent magnet yoke iron discs in one permanent magnet rotor group, and each permanent magnet yoke iron disc is equipped with a permanent magnet.

The composite disk can also be divided into an active unit and a driven unit. The power input end of the active unit is dynamically connected to the input shaft (1), and the motor driven by the input shaft (1) and the input shaft (1) drives the active unit to move; the driven unit Because electromagnetic induction occurs between the unit and the active unit, the slave unit also starts to move.

In the design of this application, both the conductor rotor group and the permanent magnet rotor group in the composite disk can be used as the active unit and the driven unit. That is to say, when the conductor rotor group is used as the active unit, the permanent magnet rotor group is used as the driven unit. ; On the contrary, when the permanent magnet rotor group is used as the active unit, the conductor rotor group is used as the driven unit. However, it should be noted that in the same magnetic coupler, the active units must be unified. For example, all active units are conductor rotor groups, or all active units can only be permanent magnet rotor groups.

As shown in FIG. 1 , in this embodiment, the conductor rotor group is used as the active unit, and the permanent magnet rotor group is used as the driven unit.

In this application, composite disk I and composite disk II have a total of four conductor yoke disks and conductors arranged on the surface of each conductor yoke disk. The four conductor yoke disks are connected through I-beams 10 and connectors. overall. The input shaft 1 is dynamically connected to the conductor yoke iron plate of the composite plate I.

In this application, composite disk I and composite disk II have four permanent magnet yoke iron disks and permanent magnets arranged on the surface of each permanent magnet yoke iron disk. Two of the four permanent magnet yoke plates are divided into one group. The two permanent magnet yoke plates in the same group are sleeved on the outside of the output shaft 23 through sleeves. The two permanent magnet yoke plates on the sleeve are arranged along the axial direction. Movable; the two sets of permanent magnet yoke iron plates are connected through a rocker slider mechanism 29. Each set of permanent magnet yoke plates is arranged between two adjacent conductor yoke plates. The conductors on the conductor yoke plates are opposite to the permanent magnets on the permanent magnet yoke plates, and there is a gap between the adjacent conductors and the permanent magnets. There is an air gap. The right end of the permanent magnet rotor group is connected to the crank slider mechanism 18 .

The speed regulating device includes a rocker slider mechanism 29 and a crank slider mechanism 18 arranged between the composite disk I and the composite disk II.

More specifically, the connection method of the four conductor yoke plates is shown in Figure 4. The four conductor yoke plates are conductor yoke plate one 5, conductor yoke plate two 12, conductor yoke plate three 13, and conductor yoke plate 13. Iron plate four 16; the four conductor yoke iron plates have the same structure, and a through hole is provided in the middle of the conductor yoke iron plate. I-beams 10 are arranged between adjacent conductor yoke iron plates. The conductor yoke iron plate 15 is evenly provided with two through holes every 90° along the circumferential direction of the plate. The I-beam 10 is provided with through holes at the four corners, and is connected to the adjacent ones through hexagonal head bolts 7, hexagonal head nuts 8 and washers 9 respectively. The conductor yoke and iron disk are connected to form an outer frame.

More specifically, as shown in Figure 1, the left side of the leftmost conductor yoke plate is fixedly connected to the sleeve 2 through the double-headed stud 4; the sleeve 2 is sleeved on the outside of the input shaft 1, and the sleeve 2 and Key transmission is used between input shaft 1. On both sides of the sleeve 2, the shaft shoulder of the input shaft 1 and the shaft end cover 3 are used for axial positioning and fixation.

More specifically, with reference to Figure 14, taking conductor yoke plate 1 and conductor 1 6 as an example, the other three conductor yoke plates adopt the same design. An array of fan-shaped slots is provided along the circumferential direction on the annular conductor 6; an array of fan-shaped slots is provided along the circumferential direction on the conductor yoke plate 5, and the fan-shaped slots and the yoke teeth cooperate with each other.

More specifically, with reference to Figure 15, taking conductor yoke plate 1 and conductor 1 6 as an example, the other three conductor yoke plates adopt the same design. Conductor one 6 is arranged in an annular shape, and an annular groove corresponding to conductor one 6 is opened on conductor yoke plate one 5. Directly insert conductor one 6 into the annular groove of conductor yoke plate one 5, and use hexagon socket screws 38 Fix the conductor yoke plate-5 and conductor-6.

More specifically, the four permanent magnet yoke iron plates are permanent magnet yoke iron plate four 17, permanent magnet yoke iron plate three 27, permanent magnet yoke iron plate two 32, and permanent magnet yoke iron plate one 34. With reference to Figure 5, the permanent magnet yoke plate is composed of an annular part and a disc part, wherein the disc part is located on the outer surface of the annular part, a permanent magnet is provided on one side surface of the disc part, and the annular part Set on the outside of the spline sleeve. There is a gap between the annular portion of the permanent magnet yoke plate and the conductor yoke plate.

The spline sleeve is set outside the output shaft 23 and is driven by a key; the spline sleeve is provided with external splines, and the annular part of the permanent magnet yoke iron plate is provided with internal splines, thereby realizing the spline sleeve. The spline connection between the cylinder and the permanent magnet yoke plate; therefore, the radial connection between the permanent magnet yoke plate and the spline sleeve can be realized, and at the same time, the permanent magnet yoke plate can be axially connected on the spline sleeve. move towards.

In this application, two permanent magnet yoke iron plates are set as one group. As shown in Figure 1, the first permanent magnet yoke iron plate 34 and the second permanent magnet yoke iron plate 32 constitute the first permanent magnet rotor group. The magnet yoke iron plate three 27 and the permanent magnet yoke iron plate four 17 constitute the second permanent magnet rotor group. The two permanent magnet yoke iron discs in the same permanent magnet rotor group are connected through a rack and pinion mechanism. For example, the permanent magnet yoke iron plate one 34 and the permanent magnet yoke iron plate two 32 in the first permanent magnet rotor group are connected through the rack and pinion mechanism 33, and the permanent magnet yoke iron plate three 27 and the second permanent magnet yoke iron plate 27 in the second permanent magnet rotor group are connected. The permanent magnet yoke plate 4 17 is connected through the rack and pinion mechanism 2 26 .

With reference to Figure 16, the rack and pinion mechanism includes a first support disc 41, a rack 42 and a gear 46; wherein the first support disc 41 is set on the spline sleeve and is keyed to the spline sleeve. A limit block 58 is provided on the outer surface of the support disk 41. Two convex portions are provided on the limit block 58. The two convex portions are staggered in the axial direction, and guide rods 59 are respectively provided on the convex portions. The guide rods 59 are arranged along the axial direction. Arrangement; there are two racks 42, one end of each rack 42 is fixedly connected to the adjacent permanent magnet yoke iron plate, and the other end of each rack 42 has a circular channel; the guide rod 59 is inserted into the rack 42 In the circular channel, a gear 46 is installed between the two racks 42, and the gear 46 meshes with the two racks 42 for transmission.

In this application, in order to limit the circumferential movement of the gear 46 and the rack 42, a disk housing 47 is set outside the first support disk 41. The disk housing 47 has a slot corresponding to the limiting block 58. After the supporting disk 41 and the disk housing 47 are assembled, the gear 46 and the rack 42 will be limited in the grooves of the disk housing 47 .

More specifically, the gear 46 is set on the connecting rod 45, and the connecting rod 45 is set in the shape of a stepped shaft. The end with a larger diameter of the connecting rod 45 can limit the movement of the gear 46, and the gear end cover 43 and the cross are used at the other end of the connecting rod 45. Slotted countersunk head screws 44 secure the gear 46 to the connecting rod 45 . A positioning hole is provided in the limiting block 58, and during installation, the gear end cover 43 falls into the positioning hole.

More specifically, a through hole is opened in the radial direction in the groove of the disk housing 47. During installation, the disk housing 47 can be placed outside the first support disk 41, and the connecting rod 45 can be connected to the groove through the hole. The gear 42 is installed on the first support disk 41.

More specifically, the limiting block 58 and the first supporting disk 41 may be separated and fixedly connected using fasteners or other means, or may be of an integrated structure.

In this application, the first permanent magnet rotor group is disposed between two conductor yoke plates. As shown in Figure 2, a composite disk is composed of conductor yoke plate one 5, the first permanent magnet rotor group, and conductor yoke plate two 12. I, the composite disk II is composed of the conductor yoke plate 3 13, the second permanent magnet rotor group and the conductor yoke plate 4 16.

In this application, the rocker slider mechanism 29 connecting the first permanent magnet rotor group and the second permanent magnet rotor group is shown in Figure 17 and can be provided between the first permanent magnet rotor group and the second permanent magnet rotor group. Multiple equidistant rocker slider mechanisms 29 are provided to connect more permanent magnet rotor groups. In this application, only one rocker slider mechanism 29 is provided.

The rocker slider mechanism 29 includes a slider, a rocker and a connecting piece; specifically, the slider includes an upper slider 51 and a fixed base 55. The fixed base 55 is fixedly installed on the second support disk 54. The second support disk 54 is sleeved on the output shaft 23, and the second support disk 54 and the output shaft 23 are connected by a key. The fixed base 55 is equipped with a support column 57, which is arranged along the radial direction of the second support disk 54; the upper slider 51 is set on the support column 57 and can move up and down along the support column 57.

The two sides of the fixed base 55 facing the permanent magnet yoke iron plate are respectively hinged with one end of the first support member 50 and one end of the second support member 53; the two sides of the upper slider 51 facing the permanent magnet yoke iron plate They are respectively hinged with one end of the first rocker 49 and one end of the second rocker 52. The first rocker 49 and the second rocker 52 are respectively provided with chute; the other end of the first support member 50 is inserted into the first rocker through a cylindrical pin. In the chute of the rocker 49, the other end of the second support member 53 is inserted into the chute of the second rocker 52 through a cylindrical pin; the other end of the first rocker 49 and the other end of the second rocker 52 respectively correspond to The permanent magnet yoke iron plate 2 32 and the permanent magnet yoke iron plate 3 27 are hinged. In this application, a fixing block 56 is fixedly installed on the opposite side walls of the permanent magnet yoke iron plate 2 32 and the permanent magnet yoke iron plate 3 27 , and the other ends of the first rocker 49 and the second rocker 52 pass through The cylindrical pin 48 can be rotatably connected to the fixed blocks 56 on the permanent magnet yoke iron plate 2 32 and the permanent magnet yoke iron plate 3 27 respectively.

In this application, the permanent magnets on the four permanent magnet yoke plates adopt the same installation arrangement. According to the actual situation, the installation arrangement of the permanent magnet yoke plates is as follows:

(1) As shown in Figures 6 and 7, the permanent magnets are divided into two layers along the radial direction. The permanent magnets are arranged at alternating intervals with N and S poles. The magnetizing direction is opposite to the axial direction. The permanent magnet yoke iron plate is fixedly connected with a retaining Frame 39, the permanent magnets are installed at intervals in the cage 39, and the cage 39 is fixed on the permanent magnet yoke iron plate through hexagon socket screws 40;

(2) As shown in Figures 8 and 9, the permanent magnets are divided into two layers along the radial direction. The permanent magnets are arranged in a 90° Halbach array and spread out along the circumferential direction. The magnetization directions within one cycle are left, up, right, and down. The permanent magnet yoke plate is fixedly connected with an inner and outer two-layer aluminum cage. The two layers of permanent magnets are fully installed and radially fixed through the inner permanent magnet yoke plate and the outer two-layer aluminum cage;

(3) As shown in Figure 10, the permanent magnets are divided into two layers along the radial direction. The permanent magnets are arranged alternately with N and S poles. The magnetizing direction is opposite to the axial direction. The inner and outer layers are fixedly connected to the permanent magnet yoke iron plate. Aluminum cage, two layers of permanent magnets are fully installed and radially fixed through the inner permanent magnet yoke plate and the outer two layers of aluminum cages;

(4) As shown in Figure 11, the permanent magnets are arranged with N and S poles alternately spaced apart. The magnetizing direction is opposite to the axial direction. An aluminum cage is fixedly connected to the permanent magnet yoke iron plate, and the permanent magnets are installed at intervals on the aluminum cage. Inside;

(5) As shown in Figure 12, the permanent magnets are arranged in a 90° Halbach array. The magnetization directions within one cycle are left, up, right, and down along the circumferential direction. The permanent magnets are tightly adhered to the permanent magnet yoke iron plate. The permanent magnet is fixed radially through the permanent magnet yoke iron plate;

(6) As shown in Figure 13, the permanent magnets are arranged in a dense arrangement with N and S poles installed alternately. The magnetizing direction is opposite to the axial direction. The permanent magnets are tightly adhered to the permanent magnet yoke iron plate. The permanent magnet passes through the permanent magnet yoke iron plate. Radially fixed.

In this application, the crank slider mechanism 18 includes a double row tapered roller bearing 20, a housing 19 and a crank. The double row tapered roller bearing 20 is set on the outside of the annular part of the rightmost permanent magnet yoke iron plate 417, A housing 19 is provided outside the double row tapered roller bearing 20. The transition speed between the housing 19 and the outer ring of the double row tapered roller bearing 20 is 0. The permanent magnet yoke iron plate 17 transitions between the inner ring of the double row tapered roller bearing 20. The cooperation is the output speed; the housing 19 is connected to the crank; in addition, the housing 19 is connected to the fixed sleeve 22 through the coil spring 21. The fixed sleeve 22 is set on the output shaft 23, and the fixed sleeve 22 and the output shaft 23 are connected by a key. The left and right sides of the fixed sleeve 22 are axially positioned and fixed by round nuts.

The working principle of a multi-group multi-disc multi-air gap linkage-adjustable magnetic coupler proposed by the present invention is as follows:

Two composite disks are used to illustrate. When the crank slider mechanism 18 is at the rightmost end and remains axially fixed, the input shaft 1 is driven and rotated by the power source. The input shaft 1 drives the outer frame composed of four conductor yoke iron disks. At the same time, the conductor on the conductor yoke plate is driven to rotate synchronously.

Each rotating conductor and the permanent magnet on the permanent magnet yoke iron plate opposite each conductor produce relative motion; based on the principle of electromagnetic induction, the four groups of conductors and the rotor generate induced currents, and the induced magnetic field generated by the induced current interacts with the permanent magnets. The electromagnetic torque drives the four permanent magnet yoke iron plates to rotate synchronously, thereby driving the output shaft 23 to rotate synchronously.

Speed regulation principle:

With reference to Figures 2 and 3, when the crank slider mechanism 18 is at the rightmost end, the crank slider mechanism 18 and the permanent magnet yoke plate 4 17 are driven to move axially to the left, and the gear 46 on the rack and pinion mechanism 26 The rotating rack 42 moves, and at the same time, the rack 42 drives the permanent magnet yoke iron plate three 27 to move axially to the right on the spline sleeve two 26. When the permanent magnet yoke iron plate three 27 moves axially, the third permanent magnet yoke iron plate 27 moves axially. The lower end of the second rocker 52 moves axially to the right, and the entire second rocker 52 rotates counterclockwise, driving the upper slider 51 to move axially inward along the support column 57, and at the same time driving the first rocker 49 to rotate clockwise. The lower end of the rocker 49 drives the permanent magnet yoke iron plate two 32 to move axially to the left on the spline sleeve one 30. When the permanent magnet yoke iron plate two 32 moves axially, the rack and pinion mechanism 33 The gear rotates and moves, and at the same time, the permanent magnet yoke iron plate 34 is driven to move axially to the right on the spline sleeve 30, so that the four sets of permanent magnet rotors move synchronously, and the space between the four sets of permanent magnet rotors and the conductor rotor is The air gap changes simultaneously, and each group produces the same electromagnetic torque, thereby producing a speed regulation effect.

When the crank slider mechanism 18 is at the far left end, the crank slider mechanism 18 and the permanent magnet yoke plate 4 17 are driven to move axially to the right, and the gear 46 on the rack and pinion mechanism 26 rotates the rack 42 to move. The rack 42 drives the permanent magnet yoke iron plate three 27 to move axially to the left on the spline sleeve two 26. When the permanent magnet yoke iron plate three 27 moves axially, the lower end of the second rocker 52 moves to the left. Lateral axial movement, the entire second rocker 52 rotates clockwise, driving the upper slider 51 to move axially outward along the support column 57, and at the same time drives the first rocker 49 to rotate counterclockwise, and the lower end of the rocker 49 drives the permanent magnet The second yoke plate 32 moves axially to the right on the spline sleeve one 30. When the permanent magnet yoke plate 2 32 moves axially, the gear on the rack and pinion mechanism 33 rotates and moves, and at the same time it drives The permanent magnet yoke plate 34 moves axially to the left on the spline sleeve 30, so that the four sets of permanent magnet rotors move synchronously, and the air gaps between the four sets of permanent magnet rotors and the conductor rotors change at the same time. Both groups produce the same electromagnetic torque, thereby producing a speed regulation effect.

When the crank slider mechanism 18 is in any intermediate position, the crank slider mechanism is driven to move axially according to the speed regulation requirements.

In the embodiment of the present application, only two composite disks are used for illustration. Based on the design of the present application, the power of the magnetic coupler can be increased by adding the rocker slider mechanism 29 and the composite disk.

The above embodiments are only used to illustrate the design ideas and features of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. The protection scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes or modifications made based on the principles and design ideas disclosed in the present invention are within the protection scope of the present invention.

Claims

A multi-group multi-disk multi-air gap linkage-adjustable magnetic coupler, which is characterized by including:

inputshaft(1);

Output shaft (23), the output shaft (23) and the input shaft (1) are coaxially arranged;

A plurality of composite disks are arranged on the output shaft (23) in sequence, each composite disk includes a conductor rotor group, a permanent magnet rotor group, a rack and pinion mechanism and a spline sleeve;

The spline sleeve is set on the output shaft (23) and connected through a key;

The permanent magnet rotor group includes two oppositely arranged permanent magnet yoke iron plates and permanent magnets respectively arranged on the surfaces of the two permanent magnet yoke iron plates;

The conductor rotor group includes two opposite conductor yoke plates and conductors respectively arranged on the surfaces of the two conductor yoke plates;

In the same composite disk, the conductor yoke disk and the permanent magnet yoke disk and the permanent magnet and the conductor on the same side face each other one by one; and there is an air gap between the permanent magnet and the conductor;

In the same composite disk, one of the conductor rotor group and the permanent magnet rotor group serves as the active unit, and the other serves as the driven unit;

The power input end of the active unit is dynamically connected to the input shaft (1); the yoke plates in the same active unit and the yoke plates of adjacent active units are all fixedly connected;

The driven unit is set outside the spline sleeve and is spline-connected with the spline sleeve; the yoke plates in the same driven unit are connected through a rack and pinion mechanism; the adjacent driven units are are connected through the rocker slider mechanism (29);

A crank slider mechanism (18) connected to the power output end of the driven unit.
A multi-group multi-disc multi-air gap linkage-adjustable magnetic coupler according to claim 1, characterized in that the rack and pinion mechanism includes a first support disc (41), a rack (42) and Gear (46); wherein, the first support disk (41) is set on the spline sleeve and is keyed to the spline sleeve, and a limit block (58) is provided on the outer surface of the first support disk (41) , two protrusions are provided on the limit block (58), the two protrusions are staggered along the axial direction, and guide rods (59) are respectively provided on the protrusions, and the guide rods (59) are arranged along the axial direction; the rack (42 ) is provided with two, one end of each rack (42) is fixedly connected to the adjacent permanent magnet yoke iron plate, and a circular channel is opened at the other end of each rack (42); the guide rod (59) is inserted into the rack In the circular channel of (42); a gear (46) is installed between the two racks (42), and the gear (46) meshes with the two racks (42) for transmission.
A multi-group, multi-disc, multi-air gap linkage-adjustable magnetic coupler according to claim 2, characterized in that a disk shell (47) is set outside the first support disk (41), and the disk shell (47) has a slot corresponding to the limiting block 58. After the first support disk (41) and the disk housing (47) are assembled, the gear (46) and the rack (42) are limited to the disk housing (47). 47) in the slot.
A multi-group multi-disc multi-air gap linkage-adjustable magnetic coupler according to claim 1, characterized in that the rocker slider mechanism (29) includes an upper slider (51) and a fixed base (55 ) and multiple rockers; the fixed base (55) is fixedly installed on the second support disc (54), the second support disc (54) is sleeved on the output shaft (23), and the second support disc (54) ) and the output shaft (23) are connected by a key; the fixed base (55) is equipped with a support column (57), and the support column (57) is arranged along the radial direction of the second support disk (54); the upper slider (51 ) is set on the support column (57), and the two sides of the fixed base (55) facing the permanent magnet yoke plate are respectively hinged with one end of the first support member (50) and one end of the second support member (53); The two sides of the upper slider (51) facing the permanent magnet yoke iron plate are respectively hinged with one end of the first rocker (49) and one end of the second rocker (52). The two rockers (52) are respectively provided with chute; the other end of the first support member (50) is inserted into the chute of the first rocker (49) through a cylindrical pin, and the other end of the second support member (53) is inserted into the chute of the first rocker (49) through a cylindrical pin. The pin is inserted into the chute of the second rocker (52); the other end of the first rocker (49) and the other end of the second rocker (52) are respectively hinged with two adjacent permanent magnet yoke iron plates.
A multi-group multi-disc multi-air gap linkage-adjustable magnetic coupler according to claim 1, characterized in that the crank slider mechanism (18) includes a double-row tapered roller bearing (20) and a housing (19) And the crank, the double row tapered roller bearing (20) is set on the outside of the outermost permanent magnet yoke iron plate of the output end, a shell (19) is provided outside the double row tapered roller bearing (20), and the shell (19) is connected Crank; the housing (19) is connected to the fixed sleeve (22) through the coil spring (21), and the fixed sleeve (22) is sleeved on the output shaft (23), and between the fixed sleeve (22) and the output shaft (23) Connect via key.
A multi-group multi-disk multi-air gap linkage-adjustable magnetic coupler according to any one of claims 1-5, characterized in that all conductor yoke iron disks are connected in sequence through I-beams (10) .
A multi-group multi-disc multi-air gap linkage-adjustable magnetic coupler according to claim 6, characterized in that the conductor yoke iron plate is processed with an array of yoke teeth distributed along the circumferential direction, and the annular conductor is formed along the circumferential direction. Sector-shaped slots distributed in an array are opened; the sector-shaped slots and the yoke teeth cooperate with each other.
A multi-group multi-disk multi-air gap linkage-adjustable magnetic coupler according to claim 6, characterized in that the conductor is annular, and an annular groove corresponding to the conductor is opened on the conductor yoke iron plate to embed the conductor. In the annular groove of the conductor yoke plate, the conductor yoke plate and the conductor are fixed by fasteners.
A multi-group multi-disk multi-air gap linkage-adjustable magnetic coupler according to claim 6, characterized in that the permanent magnets on the permanent magnet yoke iron disk are arranged in a single layer or in two layers along the radial direction.
A multi-group multi-disc multi-air gap linkage-adjustable magnetic coupler according to claim 9, characterized in that the permanent magnets in each layer adopt N and S poles alternately or are arranged in a 90° Halbach array. .