Conducting ring and disassembly and assembly method thereof

Abstract

The invention discloses a conducting ring and a dismounting and mounting method thereof, a conducting ring body and a plurality of conducting preassembling strips, a shaft hole is formed in the conducting ring body, and more than one annular groove is formed in the side wall of the shaft hole; each conductive preassembling strip is of an arc-shaped structure, and the plurality of conductive preassembling strips are arranged in the same annular groove; two first magnetic attraction assemblies are arranged between the conductive preassembling strip and the annular groove; a contact elastic sheet is arranged at the bottom of the annular groove, the contact elastic sheet is located between the annular groove and the conductive preassembled strip, and a conductive layer is arranged on the surface of the contact elastic sheet; each conductive preassembling strip is provided with a plurality of conductive fiber bundles, and the tail ends of the conductive fiber bundles are used for making contact with a motor shaft. According to the conducting ring and the disassembly and assembly method thereof provided by the invention, the quick assembly and disassembly of the conducting preassembled strip are realized through the magnetic attraction assembly, and the use requirement of replacing a damaged conducting fiber bundle can be met.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to a conductive ring and a disassembly and assembly method thereof. Background Art

[0002] The bearing is one of the most important parts of the motor. It supports the mechanical rotating body, reduces the rotation friction coefficient, and improves the rotation accuracy. During the operation of the motor, shaft current will be generated due to leakage, static electricity accumulation, improper current circuit, and the use of variable frequency drive motors, which will lead to electrical corrosion of the bearing. At present, conductive rings are used to lead the shaft current on the motor shaft to the motor housing, thereby protecting the bearing.

[0003] In the existing conductive ring structure, a circle of circumferentially distributed conductive fiber bundles is arranged inside the conductive ring. Since the conductive ring cannot be disassembled, it is difficult to replace a damaged conductive fiber bundle.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a conductive ring and a method for disassembling and assembling the same, aiming to solve the technical problem in the prior art that a damaged conductive fiber bundle cannot be replaced.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A conductive ring, a conductive ring body and a plurality of conductive pre-installed strips, wherein the conductive ring body is provided with an axial hole, the side wall of the axial hole is provided with an annular groove, and there are more than one annular groove; the conductive pre-installed strip is an arc-shaped structure, and the plurality of conductive pre-installed strips are arranged in the same annular groove; two first magnetic suction components are arranged between the conductive pre-installed strip and the annular groove; a contact spring is arranged at the bottom of the annular groove, the contact spring is located between the annular groove and the conductive pre-installed strip, and a conductive layer is arranged on the surface of the contact spring; each conductive pre-installed strip is provided with a plurality of conductive fiber bundles, and the ends of the conductive fiber bundles are used to contact with the motor shaft.

[0008] Furthermore, the conductive pre-installed strip is provided with a plurality of radial holes, and the end of each conductive fiber bundle is fixed in the radial hole.

[0009] Furthermore, each of the first magnetic components includes a first magnetic component embedded in the end of the conductive pre-installed strip, and a second magnetic component attracted to the first magnetic component. The end of the conductive ring body is provided with a first axial hole connected to the bottom of the annular groove, and the second magnetic component is installed in the first axial hole.

[0010] Furthermore, it also includes a plurality of second magnetic components, the second magnetic components include a third magnetic component embedded in the middle of the conductive pre-installed strip and a fourth magnetic component attracted to the third magnetic component, the end of the conductive ring body is provided with a second axial hole connected to the bottom of the annular groove, and the fourth magnetic component is installed in the second axial hole; and the third magnetic component on the same conductive pre-installed strip is located between the two first magnetic components.

[0011] Furthermore, the magnetism of the second magnetic attraction component is opposite to the magnetism of the first magnetic attraction component.

[0012] Furthermore, the magnetism of the two first magnetic elements on the same conductive pre-installed strip is opposite, and the magnetism of the first magnetic elements in the same annular groove is alternately arranged; a mark is provided on the surface of the conductive pre-installed strip near the end of the shaft hole.

[0013] Furthermore, the first magnetic attraction members and the third magnetic attraction members on all the conductive pre-installed strips are respectively distributed in a circular array with the shaft hole as the center.

[0014] Furthermore, the contact spring sheet is provided with an avoidance hole for avoiding the first magnetic attraction component and the third magnetic attraction component.

[0015] Furthermore, the edge of the contact spring is provided with a plurality of contact ends bent upward by 180°, the contact ends abut against the outer side of the conductive pre-installed strip, the conductive layer is provided on the surface where the contact ends abut against the conductive pre-installed strip, and extends to the surface where the contact spring abuts against the annular groove.

[0016] A method for disassembling and assembling a conductive ring, applied to the conductive ring, comprises the following steps: during disassembly and assembly:

[0017] S1. Two second magnetic members and a plurality of fourth magnetic members corresponding to the same conductive pre-installed strip are heated by a heating device so that the second magnetic members and the fourth magnetic members temporarily lose their magnetism; the heating device comprises a frame, a plurality of heating rods elastically connected to the frame, and a controller electrically connected to the heating rods, and a thimble is fixed at the end of the heating rod, and the thimble is used to contact the second magnetic member and the fourth magnetic member;

[0018] S2, when the first magnetic attraction member and the second magnetic attraction member, and the third magnetic attraction member and the fourth magnetic attraction member are no longer attracted, taking the conductive pre-installed strip out of the annular groove;

[0019] S3, repeat S1-S2 to take out all the conductive pre-installed strips;

[0020] S4, after the second magnetic element and the fourth magnetic element recover their magnetism, a new conductive pre-installed strip is installed into any annular groove, and the first magnetic element and the second magnetic element are attracted one by one, and the third magnetic element and the fourth magnetic element are attracted to fix the position of the conductive pre-installed strip;

[0021] S5. Repeat S4 to install all the conductive pre-installed strips into the annular groove.

[0022] Beneficial effects:

[0023] The present invention provides a conductive ring and a method for disassembling and assembling the same, wherein: (1) a conductive fiber bundle is pre-installed on a conductive pre-installed strip, thereby realizing rapid installation of the conductive pre-installed strip, and the conductive pre-installed strip is fixed in an annular groove by a first magnetic attraction component, thereby realizing stable installation of the conductive pre-installed strip; (2) a contact spring is arranged between the conductive pre-installed strip and the annular groove, thereby ensuring close contact between the conductive pre-installed strip and the annular groove, and a conductive layer is arranged on the surface of the contact spring, thereby ensuring the circulation of shaft current; (3) the first magnetic attraction component and the second magnetic attraction component are heated by a heating device, thereby temporarily losing magnetism of the first magnetic attraction component and the second magnetic attraction component, thereby facilitating removal of the conductive pre-installed strip; after the first magnetic attraction component and the second magnetic attraction component are cooled to room temperature, the conductive pre-installed strip can be attracted and fixed again, thereby realizing the function of a replaceable conductive pre-installed strip, thereby meeting the use requirements of replacing a damaged conductive fiber bundle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A structural diagram of a conductive ring provided by the present invention;

[0025] Figure 2 An exploded view of the conductive ring provided by the present invention;

[0026] Figure 3 for Figure 2 A magnified image of point A;

[0027] Figure 4 A cross-sectional view of a conductive ring provided by the present invention;

[0028] Figure 5 A top view of a conductive ring provided by the present invention Figure 1 ;

[0029] Figure 6 A schematic diagram of the magnetic distribution of the first magnetic attraction component in the conductive ring provided by the present invention;

[0030] Figure 7 A top view of a conductive ring provided by the present invention Figure 2 ;

[0031] Figure 8 A top view of a conductive ring provided by the present invention Figure 3 ;

[0032] Fig. 9 A schematic flow chart of a method for disassembling and assembling a conductive ring provided by the present invention;

[0033] Fig.10 A top view of a heating device in the method for disassembling and assembling a conductive ring provided by the present invention;

[0034] Fig.11 A top view of the angle adjustment assembly in the method for disassembling and assembling the conductive ring provided by the present invention;

[0035] Fig.12 The present invention is a schematic diagram of the installation of the ejector pin in the method for disassembling and assembling the conductive ring provided by the present invention.

[0036] Figure numerals: conductive ring body 1, axial hole 11, annular groove 12, first axial hole 13, mounting hole 14, second axial hole 15, conductive pre-installed strip 2, radial hole 21, first magnetic component 3, first magnetic part 31, second magnetic part 32, second magnetic component 4, third magnetic part 41, fourth magnetic part 42, conductive fiber bundle 5, contact spring 6, conductive layer 61, contact end 62, avoidance hole 63, heating device 7, frame 71, heating rod 72, controller 73, ejector pin 74, temperature sensor 75, XY axis moving component 76, angle adjustment component 77, movable seat 771, turntable 772, locking screw 773, waist hole 774, telescopic component 78, guide rod 781, mounting seat 782, spring 783. DETAILED DESCRIPTION

[0037] The present invention provides a conductive ring and a method for disassembling and assembling the same. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] In the description of the present invention, it should be understood that the terms "inside", "outside", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, and a specific orientation structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0039] See also Figures 1 to 8As shown, the present invention provides a conductive ring, comprising: a conductive ring body 1 and a plurality of conductive pre-installed strips 2, wherein the conductive ring body 1 is provided with an axial hole 11, and the side wall of the axial hole 11 is provided with an annular groove 12, and there are more than one annular groove 12; the conductive pre-installed strip 2 is an arc-shaped structure, and the plurality of conductive pre-installed strips 2 are arranged in the same annular groove 12; two first magnetic suction components 3 are arranged between the conductive pre-installed strip 2 and the annular groove 12; a contact spring 6 is provided at the bottom of the annular groove 12, and the contact spring 6 is located between the annular groove 12 and the conductive pre-installed strip 2, and a conductive layer 61 is provided on the surface of the contact spring 6; a plurality of conductive fiber bundles 5 are provided on each conductive pre-installed strip 2, and the ends of the conductive fiber bundles 5 are used to contact the motor shaft.

[0040] The conductive fiber bundle 5 is pre-installed on the conductive pre-installed strip 2. When assembling the conductive ring body 1, the contact spring 6 is first fixed to the bottom of the annular groove 12, and then the conductive pre-installed strip 2 is fixed in the annular groove 12 through the first magnetic attraction component 3. By using the magnetic attraction fixing method, the conductive ring body 1 is installed efficiently, and the stability of the installation of the conductive pre-installed strip 2 is guaranteed, which can prevent the conductive pre-installed strip 2 from falling off during the operation of the motor.

[0041] In the above, by providing the contact spring 6, the close contact between the conductive pre-installed strip 2 and the annular groove 12 is ensured, thereby ensuring that the shaft current on the motor shaft can smoothly flow to the motor housing along the conductive fiber bundle 5, the conductive pre-installed strip 2, the contact spring 6, and the conductive ring body 1. The surface of the contact spring 6 is provided with a conductive layer 61, and the conductive layer 61 is a deep conductive path of 0.2-0.3mm etched by laser, which further ensures the flow of the shaft current.

[0042] When replacing a new conductive pre-installed strip 2, the first magnetic component 3 is heated by the heating device 7. After being heated, the first magnetic component 3 temporarily loses its magnetism, and the conductive pre-installed strip 2 can be taken out, thereby realizing the detachable function of the conductive pre-installed strip 2 and being able to replace the damaged conductive fiber bundle 5.

[0043] The above-mentioned heating device 7 transfers heat to the first magnetic component 3 by heat conduction. When the first magnetic component 3 is heated to a certain temperature, it temporarily loses its magnetism, and the conductive pre-installed strip 2 can be taken out. When the temperature of the first magnetic component 3 drops to room temperature, the first magnetic component 3 recovers its magnetism. The heating temperature should be determined according to the material properties of the first magnetic component 3, which is not limited here.

[0044] In one embodiment, the annular groove 12 is one, and a plurality of conductive pre-installed strips 2 are arranged in one annular groove 12, and the spacing between two adjacent conductive fiber bundles 5 in the conductive pre-installed strip 2 is set to be small, so that a large number of conductive fiber bundles 5 are arranged in one annular groove 12, thereby ensuring the conductive effect. Through the above arrangement, the thickness of the conductive ring body 1 can be effectively reduced to meet the use requirements of a narrow installation space.

[0045] In another embodiment, see Figure 4 , 5 There are two annular grooves 12, each of which is provided with a plurality of conductive pre-installed strips 2, and the conductive pre-installed strips 2 in the two annular grooves 12 are staggered. At this time, the spacing between two adjacent conductive fiber bundles 5 in the conductive pre-installed strips 2 is large. Under the premise of ensuring the conductive effect, this can reduce the friction between the same area of ​​the motor shaft and the conductive fiber bundles 5, so as to reduce the wear rate per unit area of ​​the motor shaft. On the vertical projection plane, all the conductive pre-installed strips 2 form a closed circle, and all the conductive fiber bundles 5 are arranged in a circular array, which further ensures the conductive effect.

[0046] In some other embodiments, according to actual use requirements, the annular grooves 12 are provided in plurality, and each annular groove 12 corresponds to a plurality of conductive pre-installed strips 2. Accordingly, the more the annular grooves 12 are, the thicker the conductive ring body 1 is.

[0047] In a preferred embodiment, see Figure 5 The conductive pre-installed strip 2 is provided with a plurality of radial holes 21, and the end of each conductive fiber bundle 5 is fixed in the radial hole 21. Optionally, the end of the conductive fiber bundle 5 is interference fit with the radial hole 21 to ensure the stability of the installation of the conductive fiber bundle 5. The conductive fiber bundle 5 is composed of a plurality of conductive fiber filaments, and the diameter of a single conductive fiber filament is less than 1 micron, so as to achieve flexible contact between the conductive fiber bundle 5 and the motor shaft.

[0048] Preferably, the radial hole 21 is chamfered at one end of the outer side of the conductive pre-installed strip 2 to facilitate pressing in the conductive fiber bundle 5 .

[0049] In a preferred embodiment, see Figure 4 , 5Each of the first magnetic components 3 includes a first magnetic component 31 embedded in the end of the conductive pre-installed strip 2, and a second magnetic component 32 attracted to the first magnetic component 31. The end of the conductive ring body 1 is provided with a first axial hole 13 connected to the bottom of the annular groove 12, and the second magnetic component 32 is installed in the first axial hole 13. During assembly, the conductive pre-installed strip 2 is placed in the annular groove 12 accordingly, and the two first magnetic components 31 are attracted by the two second magnetic components 32 and are stably attracted to each other, so as to realize the rapid installation of the conductive pre-installed strip 2 with simple operation. Similarly, during disassembly, the two second magnetic components 32 are heated at the same time by the heating device 7. After the second magnetic components 32 are heated, they temporarily lose their magnetism, and the first magnetic component 31 and the second magnetic component 32 are no longer attracted to each other. At this time, the conductive pre-installed strip 2 can be taken out.

[0050] See also Figure 7 , 8 When the length of the conductive pre-installed strip 2 is long, in order to improve the stability of the installation of the conductive pre-installed strip 2, a plurality of second magnetic components 4 are further included. When the same conductive pre-installed strip 2 is paired with the conductive ring body 1, the second magnetic component 4 is located between the two first magnetic components 3.

[0051] Specifically, the second magnetic component 4 includes a third magnetic component 41 embedded in the middle of the conductive pre-installed strip 2 and a fourth magnetic component 42 attracted to the third magnetic component 41. The end of the conductive ring body 1 is provided with a second axial hole 15 connected to the bottom of the annular groove 12, and the fourth magnetic component 42 is installed in the second axial hole 15; and the third magnetic component 41 on the same conductive pre-installed strip 2 is located between the two first magnetic components 31. By adding the fourth magnetic component 42 and the third magnetic component 41 to attract, the connection stability between the middle of the conductive pre-installed strip 2 and the annular groove 12 is enhanced, and the installation stability of the conductive pre-installed strip 2 is further enhanced. Similarly, when disassembling, the second magnetic component 32 and the fourth magnetic component 42 need to be heated by the heating device 7 at the same time. After the second magnetic component 32 and the fourth magnetic component 42 are heated, they temporarily lose their magnetism, and the first magnetic component 31 and the second magnetic component 32, as well as the third magnetic component 41 and the fourth magnetic component 42 are no longer attracted. At this time, the conductive pre-installed strip 2 can be taken out.

[0052] Optionally, an interference fit connection is adopted between the second magnetic member 32 and the first axial hole 13 , and between the fourth magnetic member 42 and the second axial hole 15 , so as to ensure the stability of the installation of the second magnetic member 32 and the fourth magnetic member 42 .

[0053] It should be understood that the first axial hole 13 and the second axial hole 15 are provided in the axial direction of the conductive ring body 1 to facilitate hole processing and effectively reduce production costs. In another embodiment, the first axial hole 13 and the second axial hole 15 can be radially arranged, with one end of the hole connected to the bottom of the annular groove 12 and the other end extending to the side wall of the conductive ring body 1.

[0054] In practical applications, the two magnetic attracting members that can attract each other may include: two magnets with opposite magnetic properties; or one magnetic attracting member is a magnet and the other magnetic attracting member is a ferromagnetic material.

[0055] In one embodiment, the first magnetic member 31 and the second magnetic member 32 are both magnets, and the magnetic properties of the first magnetic member 31 are opposite to those of the second magnetic member 32 .

[0056] Specifically, see Figure 5 , 6 The two first magnetic attracting members 31 on the same conductive pre-installed strip 2 have opposite magnetic properties, and the magnetic properties of the first magnetic attracting members 31 in the same annular groove 12 are arranged alternately; a mark is provided on the surface of the end of the conductive pre-installed strip 2 near the shaft hole 11. By setting the mark, it serves as a reminder for the positive installation of the conductive pre-installed strip 2. Figure 6 As shown, the magnetism of the first magnetic member 31 and the corresponding second magnetic member 32 in the same annular groove 12 are arranged alternately, such as the arrangement of the second magnetic member 32 is SN-SN-SN, and the arrangement of the first magnetic member 31 is NS-NS-NS; in case of incorrect assembly, that is, the first magnetic member 31 of a conductive pre-installed strip 2 is installed on the second magnetic member 32 corresponding to another conductive pre-installed strip 2 near its end, at this time, the first magnetic member 31 of a conductive pre-installed strip 2 and the second magnetic member 32 corresponding to another adjacent conductive pre-installed strip 2 have the same magnetism, thereby generating a repulsive force, and further installation is impossible, thereby playing a role in preventing wrong assembly.

[0057] In addition, in addition to using the first magnetic component 3 to achieve the detachable installation of the conductive pre-installed strip 2, during assembly, when the first magnetic component 31 and the second magnetic component 32 are attracted into place, an obvious "click" sound is produced, which serves as an auditory and tactile feedback, and can remind the operator that the conductive pre-installed strip 2 has been correctly installed.

[0058] It should be understood that during the heating process, part of the heat can also be transferred to the first magnetic member 31, causing the first magnetic member 31 to temporarily lose or reduce its magnetism, so as to ensure that the first magnetic member 31 and the second magnetic member 32 are no longer attracted. In addition, the conductive ring body 1 can be made of a material with no or low magnetism, so that when installing and removing the conductive pre-installed strip 2, the first magnetic member 31 can be prevented from being attracted and fixed to the conductive ring body 1 or other components.

[0059] In the above implementation mode, refer to Figure 7 , since the length of the conductive pre-installed strip 2 is relatively long, a second magnetic component 4 is provided to enhance the stability of the installation of the conductive pre-installed strip 2. Specifically, the third magnetic component 41 is a ferromagnetic material, and the fourth magnetic component 42 is a magnet. The distance between the first magnetic component 31 and the third magnetic component 41 located on the same conductive pre-installed strip 2 is larger than the distance between the first magnetic component 31 and the first magnetic component 31 located on the side conductive pre-installed strip 2. Therefore, when installing the conductive pre-installed strip 2, as long as the conductive pre-installed strip 2 is roughly placed in the correct installation position in the annular groove 12, the third magnetic component 41 and the second magnetic component 32 can be avoided from being attracted, and the difficulty of installing the conductive pre-installed strip 2 will not be increased.

[0060] In another embodiment, the second magnetic member 32 is a magnet, and the first magnetic member 31 is a ferromagnetic material; and the fourth magnetic member 42 is a magnet, and the third magnetic member 41 is a ferromagnetic material.

[0061] Specifically, see Figure 8 , the first magnetic components 31 and the third magnetic components 41 on all the conductive pre-installed strips 2 are respectively arranged in a circular array with the shaft hole 11 as the center. Since all the first magnetic components 31 and the third magnetic components 41, as well as the second magnetic components 32 and the fourth magnetic components 42 are respectively arranged in a circular array, any first magnetic component 31 can be attracted to any second magnetic component 32 / fourth magnetic component 42, and any third magnetic component 41 can be attracted to any second magnetic component 32 / fourth magnetic component 42, and all the conductive pre-installed strips 2 are arranged in a circular array, which further improves the flexibility of the conductive pre-installed strip 2 installation, and there is no possibility of wrong installation.

[0062] In a preferred embodiment, see Figure 2 , 3 The contact spring sheet 6 is provided with an avoidance hole 63 for avoiding the first magnetic component 31 and the third magnetic component 41. When the end of the first magnetic component 31 extends to the first axial hole 13, and the end of the third magnetic component 41 extends to the second axial hole 15, the first magnetic component 31 and the third magnetic component 41 can pass through the contact spring sheet 6 and correspondingly engage with the second magnetic component 32 and the fourth magnetic component 42.

[0063] Further, see Figure 3 The edge of the contact spring 6 is provided with a plurality of contact ends 62 bent upward by 180°, the contact ends 62 abut against the outer side of the conductive pre-installed strip 2, and the conductive layer 61 is provided on the surface where the contact ends 62 abut against the conductive pre-installed strip 2, and extends to the surface where the contact spring 6 abuts against the annular groove 12. Through the above arrangement, the contact spring 6 has elasticity, and the bottom surface of the annular groove 12 and the outer side of the conductive pre-installed strip 2 are in contact with the same conductive layer 61, thereby ensuring smooth conduction.

[0064] It should be noted that the magnetic forces generated by the first magnetic attraction component 3 and the second magnetic attraction component 4 are respectively F 磁 The elastic force generated by the contact spring 6 is F 接触 , should satisfy F 磁 >F 接触 , so that under the fixation of the first magnetic attraction component 3 and the second magnetic attraction component 4, the conductive pre-installed strip 2 presses the contact end 62, thereby allowing the axial current to flow along the conductive layer 61 to the conductive ring body 1.

[0065] Since the contact spring 6 is located at the bottom of the annular groove 12 and the contact end 62 is located on the inner side of the contact spring 6, it can provide a radial thrust toward the center of the shaft hole 11 to the conductive pre-installed strip 2, and the first magnetic attraction component 3 and the second magnetic attraction component 4 both provide a radial attraction away from the shaft hole 11 to the conductive pre-installed strip. 磁 >F 接触 , ensuring that the first magnetic member 31 and the second magnetic member 32 are attracted, the third magnetic member 41 and the fourth magnetic member 42 are attracted, and the conductive pre-installed strip 2 is pressed against the contact spring 6.

[0066] In a preferred embodiment, see Figure 1 The conductive ring body 1 is provided with a plurality of mounting holes 14, and the number of the mounting holes 14 is at least two. Preferably, the plurality of mounting holes 14 are distributed in a circular array with the axis of the conductive ring body 1 as the center, so as to improve the stability of the conductive ring installation.

[0067] When in use, the mounting hole 14 is fixed to the motor housing by screws to mount the conductive ring on the motor housing, and the motor shaft passes through the shaft hole 11. The ends of all the conductive fiber bundles 5 are in contact with the motor shaft, and under the action of the contact spring 6, the flow of the shaft current is guaranteed, so that all the shaft current on the motor shaft is guided to the motor housing. Since the conductive fiber bundle 5 is pre-installed on the conductive pre-installed strip 2, a detachable connection structure is formed between the conductive pre-installed strip 2 and the annular groove 12 through the first magnetic suction component 3 and the second magnetic suction component 4, so that the conductive fiber bundle 5 can be replaced.

[0068] See also Figure 9-12 The present invention also provides a method for disassembling and assembling a conductive ring, which is applied to the conductive ring and comprises the following steps: during disassembly and assembly:

[0069] Step 1: heating the two second magnetic elements 32 corresponding to the same conductive pre-installed strip 2 by the heating device 7, so that the second magnetic elements 32 temporarily lose their magnetism; Fig.10As shown, the heating device 7 includes a frame 71, a plurality of heating rods 72 elastically connected to the frame 71, and a controller 73 electrically connected to the heating rods 72. A pin 74 is fixed to the end of the heating rod 72, and the pin 74 is used to contact the second magnetic member 32. During heating, the controller 73 energizes the heating rod 72, the heating rod 72 generates heat, and transfers the heat to the pin 74, and the pin 74 transfers the heat to the second magnetic member 32, so as to heat the second magnetic member 32, so that the second magnetic member 32 temporarily loses its magnetism.

[0070] Preferably, the ejector pin 74 is made of a material with high thermal conductivity, and can quickly transfer the heat of the heating rod 72 to the second magnetic attraction member 32 .

[0071] Furthermore, when a second magnetic component 4 is provided between the conductive pre-installed strip 2 and the annular groove 12, the two second magnetic components 32 and the plurality of fourth magnetic components 42 corresponding to the same conductive pre-installed strip 2 are heated by the heating device 7, so that the second magnetic components 32 and the fourth magnetic components 42 temporarily lose their magnetism at the same time. It should be noted that the total number of the second magnetic components 32 and the fourth magnetic components 42 corresponding to the same conductive pre-installed strip 2 should be consistent with the number of the heating rods 72, and one ejector pin 74 corresponds to the second magnetic component 32 and the fourth magnetic component 42 one by one.

[0072] In order to avoid permanent demagnetization of the magnetic component, the heating device 7 also includes a temperature sensor 75, which is used to detect the heating temperature of the heating rod 72. The temperature sensor 75 is electrically connected to the controller 73, and the controller 73 is electrically connected to a timing module, a display screen and an operation panel. According to the material of the magnetic component, the preset heating temperature and heating time are input, and the corresponding data information is displayed on the display screen for the convenience of the operator. The timing module calculates the heating time, and the temperature sensor 75 cooperates with the controller 73 to control the heating temperature of the heating rod 72, so that the heating temperature and heating time of the magnetic component can be accurately controlled, which can avoid irreversible damage to the magnetic component.

[0073] Further, see Fig.10 , 11 , 12, the frame 71 includes a plurality of XY axis moving components 76, an angle adjustment component 77 provided at the output end of the XY axis moving component 76, and a telescopic component 78 provided at the output end of the angle adjustment component 77, and a heating rod 72 is installed on a telescopic component 78. Through the above arrangement, the installation position of the heating rod 72 is adjusted and the heating rod 72 is elastically connected, ensuring that the ejector pin 74 can contact the second magnetic attraction component 32 / the fourth magnetic attraction component 42, and is suitable for use with different conductive rings.

[0074] In the above, the XY axis moving assembly 76 includes two groups of linear modules connected in sequence to adjust the installation position of the heating rod 72 on the horizontal plane. The linear module is a prior art and will not be described in detail here. It should be understood that the XY axis moving assembly 76 is detachably mounted on the frame 71, and its installation position is adjustable. The number of XY axis moving assemblies 76 can be determined according to the number of the first magnetic assemblies 3 and the second magnetic assemblies 4 of the same conductive pre-installed strip 2, so that multiple ejector pins 74 can correspond one-to-one with the second magnetic component 32 and the fourth magnetic component 42.

[0075] In the above, see Fig.11 The angle adjustment assembly 77 includes a movable seat 771 disposed on the XY axis moving assembly 76, a turntable 772 rotatably connected to the movable seat 771, and a locking screw 773 screwed to the movable seat 771. The turntable 772 is provided with a waist hole 774, and the locking screw 773 is slidably connected to the waist hole 774 to adjust the installation angle of the heating rod 72, thereby improving the flexibility of the installation position of the heating rod 72. After tightening the locking screw 773, the installation position of the turntable 772 can be locked, thereby locking the installation angle of the heating rod 72.

[0076] In the above, see Fig.12 The telescopic assembly 78 includes two guide rods 781 vertically slidably connected to the turntable 772, a mounting seat 782 arranged at the ends of the two guide rods 781, and a spring 783 sleeved on the guide rods 781. The two ends of the spring 783 are respectively in contact with the turntable 772 and the mounting seat 782. The heating rod 72 and the temperature sensor 75 are both arranged on the mounting seat 782.

[0077] Step 2: When the first magnetic element 31 and the second magnetic element 32 , and the third magnetic element 41 and the fourth magnetic element 42 are no longer attracted to each other, the conductive pre-installed strip 2 is taken out from the annular groove 12 .

[0078] Step 3: Repeat steps 1 and 2 to take out all the conductive pre-installed strips 2.

[0079] Step 4. After the second magnetic component 32 and the fourth magnetic component 42 recover their magnetism, install the new conductive pre-installed strip 2 into the annular groove 12, and the first magnetic component 31 and the second magnetic component 32 are attracted one by one, and the third magnetic component 41 and the fourth magnetic component 42 are attracted one by one to fix the position of the conductive pre-installed strip 2; during installation, first ensure that the conductive pre-installed strip 2 is installed in the forward direction, and then when the first magnetic component 31 approaches the second magnetic component 32 and the third magnetic component 41 approaches the fourth magnetic component 42, a "click" sound is heard, indicating that the first magnetic component 31 and the second magnetic component 32 are attracted, and the third magnetic component 41 and the fourth magnetic component 42 are attracted.

[0080] Step 5: Repeat step 4 to install all the conductive pre-installed strips 2 into the annular groove 12 .

[0081] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. A conductive ring, characterized in that: include: A conductive ring body (1) and a plurality of conductive pre-installed strips (2), wherein the conductive ring body (1) is provided with an axial hole (11), the side wall of the axial hole (11) is provided with an annular groove (12), and the number of annular grooves (12) is more than one; the conductive pre-installed strip (2) is an arc-shaped structure, and the plurality of conductive pre-installed strips (2) are arranged in the same annular groove (12); two first magnetic attraction components (3) are arranged between the conductive pre-installed strip (2) and the annular groove (12); a contact spring (6) is arranged at the bottom of the annular groove (12), the contact spring (6) is located between the annular groove (12) and the conductive pre-installed strip (2), and a conductive layer (61) is arranged on the surface of the contact spring (6); and a plurality of conductive fiber bundles (5) are arranged on each conductive pre-installed strip (2), and the ends of the conductive fiber bundles (5) are used to contact the motor shaft.

2. The conductive ring according to claim 1, characterized in that: The conductive pre-installed strip (2) is provided with a plurality of radial holes (21), and the end of each conductive fiber bundle (5) is fixed in the radial hole (21).

3. The conductive ring according to claim 1, characterized in that: Each of the first magnetic attraction components (3) comprises a first magnetic attraction component (31) embedded in the end of the conductive pre-installed strip (2), and a second magnetic attraction component (32) attracted to the first magnetic attraction component (31); the end of the conductive ring body (1) is provided with a first axial hole (13) connected to the bottom of the annular groove (12); and the second magnetic attraction component (32) is installed in the first axial hole (13).

4. The conductive ring according to claim 3, characterized in that: The invention also comprises a plurality of second magnetic components (4), wherein the second magnetic components (4) comprise a third magnetic component (41) embedded in the middle of the conductive pre-installed strip (2) and a fourth magnetic component (42) attracted to the third magnetic component (41); a second axial hole (15) connected to the bottom of the annular groove (12) is formed at the end of the conductive ring body (1); and the fourth magnetic component (42) is installed in the second axial hole (15); and the third magnetic component (41) on the same conductive pre-installed strip (2) is located between the two first magnetic components (31).

5. The conductive ring according to claim 3, characterized in that: The magnetism of the second magnetic attraction member (32) is opposite to the magnetism of the first magnetic attraction member (31).

6. The conductive ring according to claim 5, characterized in that: The two first magnetic attracting members (31) located on the same conductive pre-installed strip (2) have opposite magnetic properties, and the magnetic properties of the first magnetic attracting members (31) in the same annular groove (12) are arranged alternately; and a mark is provided on the surface of the conductive pre-installed strip (2) near the end of the shaft hole (11).

7. The conductive ring according to claim 4, characterized in that: The first magnetic attraction members (31) and the third magnetic attraction members (41) on all the conductive pre-installed strips (2) are respectively distributed in a circular array with the shaft hole (11) as the center.

8. The conductive ring according to claim 4, characterized in that: The contact spring sheet (6) is provided with an avoidance hole (63) for avoiding the first magnetic attraction component (31) and the third magnetic attraction component (41).

9. The conductive ring according to claim 1, characterized in that: The edge of the contact spring (6) is provided with a plurality of contact ends (62) bent upward by 180 degrees, the contact ends (62) abut against the outer side of the conductive pre-installed strip (2), and the conductive layer (61) is provided on the surface where the contact ends (62) abut against the conductive pre-installed strip (2), and extends to the surface where the contact spring (6) abuts against the annular groove (12).

10. A method for disassembling and assembling a conductive ring, characterized in that: Applicable to the conductive ring as claimed in any one of claims 4 to 9, comprising the following steps: during disassembly: S1. Two second magnetic elements (32) and a plurality of fourth magnetic elements (42) corresponding to the same conductive pre-installed strip (2) are heated by a heating device (7) so that the second magnetic elements (32) and the fourth magnetic elements (42) temporarily lose their magnetism; the heating device (7) comprises a frame (71), a plurality of heating rods (72) elastically connected to the frame (71), and a controller (73) electrically connected to the heating rods (72); a pin (74) is fixed at the end of the heating rod (72), and the pin (74) is used to contact the second magnetic elements (32) and the fourth magnetic elements (42); S2, when the first magnetic attraction member (31) and the second magnetic attraction member (32), and the third magnetic attraction member (41) and the fourth magnetic attraction member (42) are no longer attracted, the conductive pre-installed strip (2) is taken out from the annular groove (12); S3, repeat S1-S2 to take out all the conductive pre-installed strips (2); S4. After the second magnetic attraction member (32) and the fourth magnetic attraction member (42) recover their magnetism, a new conductive pre-installed strip (2) is installed into the annular groove (12), and the first magnetic attraction member (31) and the second magnetic attraction member (32) are attracted one by one, and the third magnetic attraction member (41) and the fourth magnetic attraction member (42) are attracted to fix the position of the conductive pre-installed strip (2); S5. Repeat S4 to install all the conductive pre-installed strips (2) into the annular groove (12).

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