A permanent magnet disk for a permanent magnet coupler and a permanent magnet coupler

Abstract

The present application discloses a permanent magnet disk for a permanent magnet coupler and a permanent magnet coupler, relating to the technical field of permanent magnet couplers. The permanent magnet disk for the permanent magnet coupler includes: a permanent magnet disk body, on which at least two roller receiving grooves are provided; rollers, with one roller located in one roller receiving groove; wherein, during the operation of the permanent magnet coupler, when the permanent magnet disk of the permanent magnet coupler approaches and contacts the conductor disk of the permanent magnet coupler, the conductor disk first contacts the roller and forms rolling friction with the roller after contact. By providing rollers in the present application, when the conductor rotor contacts the magnet rotor, it first contacts the rollers. Since the rollers are cylindrical, rolling friction is formed between the two.

Description

Technical Field

[0001] The present invention relates to the technical field of permanent magnet couplings, and in particular to a permanent magnet disk for a permanent magnet coupling and a permanent magnet coupling. Background Art

[0002] A permanent magnet coupling is a non-contact coupling, which includes a conductor rotor and a magnet rotor. Relative movement occurs between the conductor rotor and the magnet rotor. The conductor disk on the conductor rotor cuts the magnetic induction lines on the magnet rotor, generating an induced current. The induced current generates an electromagnetic field, which is coupled with the physical magnetic field on the magnet rotor to achieve non-contact transmission. This product has the advantages of non-contact, maintenance-free, low requirement for installation alignment, and long service life, so it is widely promoted.

[0003] Currently, the main reason affecting the service life of this product, optionally, the permanent magnet disk for the permanent magnet coupling further includes a pressure sensor is the damage caused by the friction between the conductor rotor and the magnet rotor. The main reasons for the friction are mainly two: one is that after the main equipment is used for a long time, the bearing wears, resulting in too large an axial movement of the transmission shaft; the other is that the fixed anchor bolts of the main machine become loose, resulting in the overall movement of the main machine. Currently, although the two reasons for the damage have been found, there is no effective solution yet, and only manual inspection can be used to regularly check the axial gap between the conductor rotor and the magnet rotor, commonly known as the "air gap".

[0004] Therefore, those skilled in the art have provided a permanent magnet disk for a permanent magnet coupling to solve the problems raised in the above background art. Summary of the Invention

[0005] The object of the present invention is to solve the disadvantages existing in the prior art, and to propose a permanent magnet disk for a permanent magnet coupling.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A permanent magnet disk for a permanent magnet coupling, the permanent magnet disk for the permanent magnet coupling includes:

[0008] A permanent magnet disk body, on which at least two roller receiving grooves are provided;

[0009] Rollers, one roller is located in one roller receiving groove; wherein,

[0010] During the operation of the permanent magnet coupling, when the permanent magnet disk of the permanent magnet coupling approaches and contacts the conductor disk of the permanent magnet coupling, the conductor disk first contacts the roller.

[0011] Optionally, when in use, one side of the permanent disk body faces the conductor disk, and this side is referred to as the first side of the permanent disk body. A plurality of permanent magnet receiving grooves and the receiving groove for the roller are provided on the first side of the permanent disk body;

[0012] The permanent disk for the permanent magnetic coupler further includes permanent magnets, and the permanent magnets are received in the permanent magnet receiving grooves.

[0013] Optionally, the receiving groove for the roller is formed by recessing the first side of the permanent disk body towards the other side. The minimum vertical distance from the central axis of the roller to the first side of the permanent disk body is less than the radius of the roller.

[0014] Optionally, the permanent disk for the permanent magnetic coupler further includes:

[0015] A roller mounting shaft, and the roller mounting shaft is mounted in the receiving groove for the roller;

[0016] A shaft hole is provided in the middle of the roller. One roller is located in one receiving groove for the roller, and the roller is sleeved on the roller mounting shaft through the shaft hole.

[0017] Optionally, the permanent disk for the permanent magnetic coupler further includes:

[0018] A support frame, the support frame is provided in the receiving groove for the roller, and the roller is provided in the support frame.

[0019] Optionally, the receiving groove for the roller and the permanent magnet receiving groove have the same structure.

[0020] Optionally, a first opening is provided at one end of the support frame, and the first opening is used for the roller to enter the support frame from the first opening.

[0021] Optionally, the permanent disk for the permanent magnetic coupler further includes a pressure sensor, and the pressure sensor is provided on the outer surface of the roller.

[0022] Optionally, when the conductor disk contacts at least one of the rollers, the inclination angle information of the conductor disk is obtained through the following formula:

[0023] ; where

[0024] , ; where

[0025] P i : The reading of the pressure sensor on the i-th roller;

[0026] θ: The inclination angle of the conductor disk relative to the virtual plane formed by each roller, which is parallel to the plane on the side of the magnet disk where the rollers are provided;

[0027] (x i ,y i ): The coordinates of the i-th roller on the virtual plane.

[0028] The present application also provides a permanent magnet coupler, which includes the permanent magnet disk for the permanent magnet coupler as described above.

[0029] The present invention has the following beneficial effects:

[0030] When the permanent magnet disk for the permanent magnet coupler proposed by the present invention is used in the permanent magnet coupler, due to the provision of rollers, during the relative rotation and approaching of the conductor rotor and the magnet rotor, if the conductor rotor contacts the magnet rotor, it will first contact the rollers. And since the disk rollers are cylindrical, rolling friction is formed between the two. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of the permanent magnet disk for the permanent magnet coupler in the first embodiment of the present invention;

[0032] Figure 2 It is a schematic structural diagram of the support frame in the first embodiment of the present invention;

[0033] Figure 3 It is another schematic structural diagram of the support frame in the first embodiment of the present invention;

[0034] Figure 4 It is Figure 1 A schematic structural diagram of the roller in the permanent magnet disk for the permanent magnet coupler shown;

[0035] Figure 5 It is Figure 2 A schematic structural diagram of the roller in the permanent magnet disk for the permanent magnet coupler shown being arranged in the support frame;

[0036] Figure 6 It is another schematic structural diagram of the support frame in the second embodiment of the present invention;

[0037] Figure 7 It is a schematic structural diagram of the roller being arranged in the support frame in the second embodiment of the present invention;

[0038] Figure 8 It is a schematic structural diagram of the permanent magnet disk for the permanent magnet coupler in the third embodiment of the present invention;

[0039] Figure 9 It is a schematic cross-sectional structural diagram of the permanent magnet disk for the permanent magnet coupler in the third embodiment of the present invention.

[0040] Legend Explanation:

[0041] 1. Permanent magnet disk body; 2. Roller; 11. First side of the permanent magnet disk body; 3. Support frame; 4. Receiving groove for the roller; 41. Bottom of the receiving groove; 42. First side wall of the receiving groove; 43. Second side wall of the receiving groove; 44. First end wall of the receiving groove; 45. Second end wall of the receiving groove; 31. Bottom plate of the support frame; 32. First side wall of the support frame; 33. Second side wall of the support frame; 34. First end plate of the support frame; 35. First half baffle of the support frame; 36. Second half baffle of the support frame; 37. Second end plate of the support frame; 371. First opening; 5. Roller mounting shaft. Detailed Implementation Manner

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. In the description of this application, it should be noted that the terms used here are only for the purpose of describing specific implementation manners, and are not intended to limit the exemplary implementation manners according to this application. For the convenience of description, the dimensions of each part shown in the accompanying drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: Similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0043] As Figure 1 shown, the permanent magnet disk for a permanent magnet coupler includes a permanent magnet disk body 1 and a roller 2, where

[0044] at least two receiving grooves 4 for the roller are provided on the permanent magnet disk body 1; one roller 2 is located in one receiving groove 4 for the roller;

[0045] During the operation of the permanent magnet coupler, when the permanent magnet disk of the permanent magnet coupler approaches and contacts the conductor disk of the permanent magnet coupler, the conductor disk first contacts the roller and forms a rolling friction with the roller after contact.

[0046] When the permanent magnet disk proposed by the present invention is used in a permanent magnet coupler, due to the provision of rollers, during the relative rotation and approaching of the conductor rotor and the magnet rotor, if the conductor rotor contacts the magnet rotor, it will first contact the rollers. Since the disk rollers are cylindrical, rolling friction is formed between the two.

[0047] Specifically, after the conductor disk contacts the rollers, since the conductor disk keeps rotating and will not stop rotating even after contacting the rollers, at this time, the conductor disk contacts the rollers and drives the rollers to rotate, thus forming rolling friction between the conductor disk and the rollers.

[0048] In this embodiment, in the use state, one side of the permanent magnet disk body faces the conductor disk, and this side is called the first side 11 of the permanent magnet disk body. A plurality of permanent magnet receiving grooves and the receiving grooves for the rollers are provided on the first side 11 of the permanent magnet disk body;

[0049] The permanent magnet disk for the permanent magnet coupler further includes permanent magnets, and the permanent magnets are received in the permanent magnet receiving grooves.

[0050] See Figure 5 , in this embodiment, the first side 11 of the permanent magnet disk body of the permanent magnet disk body is recessed in the direction of the other side to form the receiving groove 4 for the rollers, and the minimum vertical distance from the central axis of the rollers to the first side 11 of the permanent magnet disk body is less than the radius of the rollers.

[0051] In this way, when the permanent magnet disk for the permanent magnet coupler approaches and contacts the conductor disk of the permanent magnet coupler, it can be ensured that the conductor disk first contacts the rollers rather than other parts of the permanent magnet disk body.

[0052] In this embodiment, the central axis of the rollers is perpendicular to the central axis of the permanent magnet disk body.

[0053] In this way, it can be ensured that when rolling friction is formed, no component force in other directions is generated between the rollers and the conductor disk during the rolling of the rollers.

[0054] See Figures 2 to 5 , in this embodiment, the permanent magnet disk for the permanent magnet coupler further includes a support frame 3, the support frame 3 is arranged in the receiving groove for the rollers, and the rollers are arranged in the support frame.

[0055] By adopting the method of setting up a support frame, the permanent magnet accommodating groove of the existing permanent magnetic disk can be used as the accommodating groove for the roller. It is only necessary to directly make the support frame into a shape that can be accommodated in the accommodating groove for the roller. In this way, the existing permanent magnetic disk can be quickly modified without the need to produce a new permanent magnetic disk. In addition, since the roller may rub against the peripheral side during rolling, in this case, if the support frame is damaged or not suitable due to friction, the support frame can be directly replaced.

[0056] Without modifying the existing permanent magnet, the method of the present application can achieve that when the conductor rotor contacts the magnet rotor, it will first contact the roller. Since the disk roller is cylindrical, rolling friction is formed between the two. In addition, compared with the prior art, the magnet rotor of the present application can implement the method of the present application without changing the volume and position of the original magnet rotor.

[0057] In the prior art, the permanent magnet accommodating groove is generally open on both sides in the axial direction of the permanent magnetic disk. A back iron is installed on one side of the permanent magnetic disk to serve as the installation bottom surface of the permanent magnet. A threaded hole is provided on the back iron at the position corresponding to each permanent magnet accommodating groove, and this threaded hole is used to eject the permanent magnet when the permanent magnet needs to be disassembled.

[0058] Generally, the number of permanent magnet accommodating grooves on the permanent magnetic disk will be processed according to the maximum allowable number to match the versatility of different models. For example, there are 20 permanent magnet accommodating grooves provided on a permanent magnetic disk body. According to the requirements of different models, the actually required installed permanent magnets may be 14, 16, or 18. When there are remaining permanent magnet accommodating grooves, the support frame can be directly installed in the unused permanent magnet accommodating groove and fixed through the threaded hole.

[0059] In this embodiment, the roller is cylindrical. This structure causes the outer cylindrical surface of the roller of the present application to limit the rotation direction of the conductor rotor when the conductor rotor contacts during rotation, and will not provide a force in other directions for the conductor rotor (for example, if it is spherical, it may cause a component force in another direction to appear, resulting in the spherical roller providing a force that may cause the conductor rotor to be misaligned).

[0060] See Figure 2 、 Figure 3 As shown in, in this embodiment, the accommodating groove 4 for the roller includes an accommodating groove bottom 41, an accommodating groove first side wall 42, an accommodating groove second side wall 43, an accommodating groove first end wall 44, and an accommodating groove second end wall 45; wherein, the accommodating groove first side wall 42 is opposite to the accommodating groove second side wall 43, and the accommodating groove first end wall 44 is opposite to the accommodating groove second end wall 45;

[0061] The support frame 3 includes a support frame bottom plate 31, a first support frame side wall 32, a second support frame side wall 33, a first support frame end plate 34, a first support frame half baffle 35, and a second support frame half baffle 36; wherein,

[0062] The support frame bottom plate 31 contacts the bottom 41 of the receiving groove;

[0063] The first support frame side wall 32 contacts the first side wall 42 of the receiving groove;

[0064] The second support frame side wall 33 contacts the second side wall 43 of the receiving groove;

[0065] The first support frame end plate 34 contacts the first end wall 44 of the receiving groove;

[0066] The first support frame side wall 32 extends towards the second support frame side wall to form the first support frame half baffle 35;

[0067] The second support frame side wall 33 extends towards the first support frame side wall 32 to form the second support frame half baffle 36;

[0068] There is a spaced - apart arrangement between the first support frame half baffle 35 and the second support frame half baffle 36 to form an opening. A part of the roller 2 located inside the support frame 3 is exposed from the opening, and the exposed part is used to contact the conductor disc; wherein,

[0069] The support frame bottom plate 31, the first support frame side wall 32, the second support frame side wall 33, the first support frame end plate 34, the first support frame half baffle 35, and the second support frame half baffle 36 enclose to form a receiving part for accommodating the roller 2.

[0070] In this embodiment, a first opening 371 is provided at one end of the support frame. The first opening 371 is connected to the receiving part and is used for the roller 2 to enter the support frame 3 from the first opening.

[0071] In one embodiment, one end of the support frame here can be the first support frame end plate 34.

[0072] See Figure 2 、 Figure 3 and Figure 5 , in this embodiment, the support frame further includes a second support frame end plate 37. The second support frame end plate 37 is opposite to the first support frame end plate 34. A first opening 371 is provided on the second support frame end plate 37. The first opening 371 is connected to the receiving part and is used for the roller 2 to enter the receiving part from the first opening.

[0073] In this embodiment, the roller receiving groove and the permanent magnet receiving groove have the same structure. In this way, each permanent magnet receiving groove can be used to place both the permanent magnet and the support frame, and can be arranged and placed according to the position of the support frame and the permanent magnet.

[0074] This method facilitates the installation of the roller, that is, in actual installation, the roller 2 is partially placed into the accommodating portion of the support frame through the first opening 371 .

[0075] In this embodiment, the support frame and the roller receiving groove are detachably connected.

[0076] In this embodiment, the permanent magnet disk for the permanent magnet coupler further includes a pressure sensor, and the pressure sensor is arranged on the outer surface of the roller 2. It can be understood that the pressure sensor can also be arranged between the roller receiving groove and the support frame.

[0077] By setting up a pressure sensor, the changes between the roller receiving groove and the support frame can be obtained in real time. When the conductor disk is continuously squeezed toward the magnetic disk (that is, the air gap continues to decrease), the pressure detected by the pressure sensor will continue to increase. When a certain threshold is reached, an alarm can be issued.

[0078] See also Figure 1 In this embodiment, the number of support frames is 4, which are evenly distributed on the permanent magnetic disk. This ensures that when the conductor disk and the magnetic disk are in relative contact and friction, each position can be guaranteed to transmit force through the roller of the present application, and the force on the magnetic disk is more uniform.

[0079] In this embodiment, a connecting shaft is provided in the support frame;

[0080] A through hole is arranged in the middle of the roller, and the roller is sleeved on the connecting shaft through the through hole.

[0081] In this way, the connecting shaft can limit the rolling direction of the roller, preventing the roller from deflecting when the roller rolls between the conductor disk. In addition, in this way, the roller only needs to be limited by the connecting shaft, that is, it does not need to contact with other parts of the support frame, and in actual rotation, no friction loss will be generated between the roller and the support frame.

[0082] In one embodiment, a first side wall opening of the support frame for connecting with the accommodation portion is provided on the first side wall 32 of the support frame and / or a second side wall opening of the support frame for connecting with the accommodation portion is provided on the second side wall 33 of the support frame.

[0083] See also Figure 6 , Figure 7, in this embodiment, a second opening is provided on a part of the support plate 31 of the support frame.

[0084] In this way, on the one hand, the wear between the cylindrical roller and the support frame can be reduced, and at the same time, the weight can be reduced.

[0085] See Figures 8 to 9 , as Figures 8 to 9 shown in the embodiment, the permanent magnet disk for the permanent magnet coupler includes a permanent magnet disk body 1, rollers 2 and a roller mounting shaft 5, wherein,

[0086] At least two roller receiving grooves 4 are provided on the permanent magnet disk body 1;

[0087] The roller mounting shaft 5 is installed in the roller receiving groove 4;

[0088] A shaft hole is provided in the middle of the roller 2. One roller 2 is located in one roller receiving groove 4, and the roller 2 is sleeved on the roller mounting shaft through the shaft hole;

[0089] During the operation of the permanent magnet coupler, when the permanent magnet disk for the permanent magnet coupler approaches and contacts the conductor disk of the permanent magnet coupler, the conductor disk first contacts the roller and forms a rolling friction with the roller after contact.

[0090] When the permanent magnet disk for the permanent magnet coupler proposed by the present invention is used in the permanent magnet coupler, due to the provision of rollers, during the relative rotation and approach of the conductor rotor and the magnet rotor, if the conductor rotor contacts the magnet rotor, it will also first contact the rollers. Since the disk rollers are cylindrical, a rolling friction is formed between the two.

[0091] Specifically, after the conductor disk contacts the roller, since the conductor disk keeps rotating and will not stop rotating even after contacting the roller, at this time, the conductor disk contacts the roller and drives the roller to rotate, so that a rolling friction is formed between the conductor disk and the roller.

[0092] In this embodiment, in the use state, one side of the permanent magnet disk body is opposite to the conductor disk, and this side is called the first side 11 of the permanent magnet disk body. A plurality of permanent magnet receiving grooves and the roller receiving grooves are provided on the first side 11 of the permanent magnet disk body;

[0093] The permanent magnet disk for the permanent magnet coupler further includes permanent magnets, and the permanent magnets are received in the permanent magnet receiving grooves.

[0094] See Figure 1 , in this embodiment, the first side 11 of the permanent magnet disk body of the permanent magnet disk body is recessed in the direction of the other side to form the roller receiving groove 4, and the minimum vertical distance from the central axis of the roller to the first side 11 of the permanent magnet disk body is less than the radius of the roller.

[0095] In this way, when the permanent magnet disk for the permanent magnet coupler and the conductor disk of the permanent magnet coupler are brought close to each other until they touch, it can be ensured that the conductor disk first touches the roller instead of other parts of the permanent magnet disk body.

[0096] In this embodiment, the central axis of the roller is perpendicular to the central axis of the permanent magnet disk body.

[0097] In this way, it can be ensured that when rolling friction is formed, no component force in other directions is generated by the frictional force between the roller and the conductor disk during the rolling of the roller.

[0098] See Figure 9 , in this embodiment, the receiving groove 4 for the roller includes a receiving groove bottom 41, a first receiving groove side wall 42, a second receiving groove side wall 43, a first receiving groove end wall 44, and a second receiving groove end wall 45.

[0099] In this embodiment, a bolt hole is provided on the first receiving groove end wall 44, and one end of the roller mounting shaft of the present application is detachably mounted on the bolt hole.

[0100] In this way, the roller mounting shaft can be detached when the roller mounting shaft is not required to be installed.

[0101] In this embodiment, the roller is cylindrical. This structure causes the outer surface of the cylindrical shape to limit the rotation direction of the conductor rotor when the roller rotates during the contact with the conductor rotor, and does not provide a force in other directions to the conductor rotor (for example, if it is spherical, it may cause a component force in another direction to act, resulting in the spherical roller providing a force that may misalign the conductor rotor).

[0102] In this embodiment, the structures of the receiving groove for the roller and the permanent magnet receiving groove are the same. In this way, each permanent magnet receiving groove can be used to place a permanent magnet or for the roller mounting shaft, and can be arranged according to the position of the support frame and the permanent magnet by itself.

[0103] In this embodiment, a lubricating oil path is provided inside the roller mounting shaft, and a lubricating oil outlet and a lubricating oil inlet communicating with the lubricating oil path are provided on the outer surface of the roller mounting shaft.

[0104] In this way, the roller mounting shaft and the roller can be lubricated by lubricating oil, so as to reduce the friction between the roller and the roller mounting shaft as much as possible when the roller rolls.

[0105] See Figure 8, in this embodiment, the number of roller mounting shafts is 4, which are evenly distributed in a circumferential direction on the permanent magnetic disk. In this way, when the conductor disk and the magnet disk are in relative contact and friction, it can ensure that the force can be transmitted through the rollers of the present application at each position, and the force on the magnet disk is relatively uniform.

[0106] In one embodiment, detachable retaining rings are provided at both ends of the roller mounting shaft 5, and the roller 2 is disposed between the two retaining rings and is limited by the two retaining rings;

[0107] There is no contact between the roller 2 and the roller receiving groove 4.

[0108] By adopting this method, it can be ensured that the roller 2 only has friction with the roller mounting shaft 5, and there is no relative friction with the roller receiving groove 4, thereby preventing the roller receiving groove 4 from being worn.

[0109] In the embodiment provided with a pressure sensor, the inclination angle information of the conductor disk relative to the magnet disk when the conductor disk contacts at least one of the rollers 2 can also be obtained in the following manner:

[0110] ; where

[0111] , ; where

[0112] P i : The reading of the pressure sensor on the i-th roller;

[0113] θ: The inclination angle of the conductor disk relative to the virtual plane formed by each roller, and this virtual plane is parallel to the plane on the side of the magnet disk where the rollers are provided;

[0114] (x i , y i ): The coordinates of the i-th roller on the virtual plane.

[0115] For example, referring to Figure 1 , assuming that there are four rollers evenly distributed on the plane of the magnet disk, located at the 12 o'clock direction, 3 o'clock direction, 6 o'clock direction, and 9 o'clock direction respectively, that is Figure 1 one at the top, bottom, left, and right respectively. The radius of each roller is r = 10 mm.

[0116] In this embodiment, the radius of the magnet disk is large enough so that the distribution of the rollers can be approximately regarded as being on a plane.

[0117] The pressure sensor readings of the rollers are as follows (unit: N):

[0118] P 12点 = 20, P 3点=15,P 6点 =10,P 9点 =5; where P 12点 represents the roller at the 12 o'clock direction, P 3点 represents the roller at the 3 o'clock direction, P 6点 represents the roller at the 6 o'clock direction, P 9点 represents the roller at the 9 o'clock direction.

[0119] Assume that the center of the magnet disk is the origin, the 12 o'clock direction is the positive direction of the y-axis, and the 3 o'clock direction is the positive direction of the x-axis, and establish a rectangular coordinate system.

[0120] Then the coordinates of the 4 rollers are respectively:

[0121] (0, R), (R, 0), , ;

[0122] where R is a sufficiently large value of the radius of the magnet disk. Since we only care about the relative position, R can be ignored.

[0123] Use the following formula to calculate the coordinates of the pressure center :

[0124] ;

[0125] Use the following formula to calculate the tilt angle θ (relative to the 12 o'clock direction, i.e., the positive direction of the y-axis):

[0126] ; It can be understood that the tilt angle calculated here is relative to the positive direction of the y-axis. If the tilt angle relative to other directions is required, corresponding conversions may be needed;

[0127] ;

[0128] .

[0129] This application also provides a permanent magnet coupler, and the permanent magnet coupler for use includes the permanent magnet disk for the permanent magnet coupler as described above.

[0130] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A permanent magnet magnet for a permanent magnet coupler, characterized in that: The permanent magnet disk for the permanent magnet coupler comprises: A permanent magnetic disk body (1), wherein the permanent magnetic disk body (1) is provided with at least two roller receiving grooves (4); A roller (2), wherein a roller (2) is located in a roller receiving groove (4); wherein: During the operation of the permanent magnetic coupler, when the permanent magnetic disc of the permanent magnetic coupler and the conductor disc of the permanent magnetic coupler approach each other and come into contact, the conductor disc first contacts the roller (2); When in use, one side of the permanent magnetic disk body (1) is opposite to the conductor disk, and this side is referred to as the first side (11) of the permanent magnetic disk body. The first side (11) of the permanent magnetic disk body is provided with a plurality of permanent magnet receiving grooves and the roller receiving groove (4). The permanent magnet disk for the permanent magnet coupler further comprises a permanent magnet, and the permanent magnet is accommodated in the permanent magnet accommodation slot; The permanent magnet disk for the permanent magnet coupler further comprises: A support frame (3), the support frame (3) being arranged in the roller receiving groove (4), and the roller (2) being arranged in the support frame (3); The permanent magnet disk for the permanent magnet coupler further comprises a pressure sensor, wherein the pressure sensor is arranged on the outer surface of the roller (2); When the conductor disk contacts at least one of the rollers (2), the inclination angle information of the conductor disk is obtained by the following formula: ;in, ;in, P i : The reading of the pressure sensor on the i-th roller; θ: the inclination angle of the conductor disk relative to the virtual plane formed by each roller, the virtual plane being parallel to the plane of the side of the magnet disk where the rollers are provided; (x i ,y i ): Coordinates of the ith roller on the virtual plane.

2. The permanent magnet disk for permanent magnet coupler according to claim 1, characterized in that: The first side (11) of the permanent magnetic disk body of the permanent magnetic disk body is recessed toward the other side to form the roller accommodating groove (4), and the minimum vertical distance between the central axis of the roller (2) and the first side (11) of the permanent magnetic disk body is less than the radius of the roller (2).

3. The permanent magnet disk for permanent magnet coupler according to claim 2, characterized in that: The roller accommodating groove (4) and the permanent magnet accommodating groove have the same structure.

4. The permanent magnet disk for a permanent magnet coupler according to claim 3, characterized in that: A first opening (371) is provided on one end of the support frame (3), and the first opening (371) is used for allowing the roller (2) to enter the support frame (3) through the first opening.

5. A permanent magnetic coupler, characterized in that: The permanent magnetic coupler comprises the permanent magnetic disk for a permanent magnetic coupler according to any one of claims 1 to 4.

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