A composite conductive ring and its assembly method

Abstract

This invention discloses a combined conductive ring, comprising a ring body and a conductive brush. The ring body has multiple mounting chambers, each with a channel for conductive components to extend out. The conductive brush includes an elastic conductive support and a conductive wire bundle. One end of the elastic conductive support is a fixed end, fixedly connected to the ring body; the other end is a free end, used to clamp and fix the conductive wire bundle. An elastic portion is provided in the middle of the elastic conductive support, housed within the mounting chamber. The assembled state of the elastic portion generates an elastic preload force that pushes the free end and the conductive wire bundle towards the inner side of the ring body, causing the end of the conductive wire bundle to abut against the shaft surface. This invention achieves self-compensation of the conductive brush without the aid of an additional compensation mechanism, and the compensation force is flexible and controllable, ensuring long-term stable use of the conductive brush.

Description

Technical Field

[0001] This invention relates to the field of conductive ring technology, specifically to a combined conductive ring and its assembly method. Background Technology

[0002] The conductive ring is usually set on the motor shaft near the end cover. The main body of the conductive ring is a metal ring. The conductive ring is sleeved on the outer circumference of the motor shaft. A conductive brush is fixed on the inner side of the conductive ring. The conductive brush includes conductive fibers. When the motor shaft rotates, the conductive fibers keep in contact with the motor shaft and ground through the conductive brush to realize the discharge of shaft current.

[0003] In the prior art, Chinese Patent Publication No. CN116799580A discloses a conductive ring (hereinafter referred to as Prior Art 1). The conductive ring includes a ring body and a conductive brush. The ring body has an installation groove along the circumferential direction. The conductive brush includes a fixing sleeve and a conductive fiber bundle. The installation groove is used to install the fixing sleeve. The fixing sleeve includes a sleeve body with a connecting part and a connecting hole. The ring body has two end faces that are opposite to each other in the axial direction. The installation groove is opened on the end face of the ring body. The installation groove has an end face groove on the end face of the ring body and an inner circumferential groove on the inner circumferential surface of the ring body. A fastener installation hole is also provided on the end face groove edge of the end face groove on the end face of the ring body. After the sleeve body of the fixing sleeve is installed in the installation groove, the fastener installation hole corresponds to the connecting hole so that the fixing sleeve is fastened to the ring body by fasteners. The conductive brush is detachably fixed on the ring body. After the conductive fiber is severely worn, it can be directly disassembled and replaced, which is convenient for maintenance operations.

[0004] In the aforementioned prior art 1, the conductive fiber bundle is still fixed using fasteners, which not only increases the assembly difficulty of the conductive brush and reduces its assembly efficiency, but also increases the structural complexity of the ring. Secondly, in the actual application of prior art 1, the contact between the conductive fiber bundle and the surface of the motor shaft is a line contact. When the motor shaft is in motion, the rotation of the motor shaft will cause the conductive fiber bundle to deviate, and no compensation measures are taken for the wear of the conductive fiber bundle. Ultimately, this leads to poor contact between the conductive fiber bundle and the motor shaft, and its conduction effect and conduction stability cannot be guaranteed.

[0005] Secondly, Chinese Patent Publication No. CN110854637A discloses a conductive slip ring (hereinafter referred to as Prior Art 2), comprising a housing, a stator disposed within the housing, and a rotor connected to the stator via bearings. Several conductive rings are evenly distributed on the rotor, and several conductive wires, each corresponding to one of the conductive rings, are disposed on the stator. One end of each conductive wire slides in contact with a conductive ring, and the other end of the conductive wire is helically bent into a spring structure and fixedly connected to the stator. An insulating ring is disposed between adjacent conductive rings and is fixedly connected to the rotor. The insulating ring has an annular groove. Several isolation plates, each corresponding to one of the insulating rings, are disposed on the stator. One side of each isolation plate is fixedly connected to the stator, and the other side of the isolation plate extends into the annular groove and slides within the groove. The spring structure provides thrust to the conductive wires, ensuring constant close contact between the conductive wires and the conductive rings, automatically compensating for wear, and extending service life.

[0006] In the prior art 2 mentioned above, a spring is used as a wear compensation component. Although this can solve the problem of poor contact caused by wear and make up for the lack of wear compensation in the prior art 1, the spring and other compensation components are additional structures. During the assembly process of the conductive ring, an additional assembly process for the compensation component is required, which increases the structural complexity of the conductive ring, the assembly difficulty, and reduces the assembly efficiency. Furthermore, in the prior art 2, wear compensation is achieved only through the elastic force of the spring. However, the elastic force of the spring is not limited, which means that the contact pressure between the conductive wire and the conductive ring depends on the elastic force generated when the spring is in different compression sections.

[0007] The factors that determine the amount of wear depend on the following elements: contact area, surface roughness, and contact pressure. When the contact area and surface roughness remain constant, the amount of wear is positively correlated with the contact pressure. Therefore, the prior art 2 does not take into account the influence of compensation pressure on the amount of wear.

[0008] In summary, to address the issues of poor conduction stability between the conductive brush and the motor shaft in existing technologies, as well as the increased structural complexity of the conductive ring due to additional compensation mechanisms, a combined conductive ring is proposed that does not increase the structural complexity of the conductive ring while ensuring effective contact between the conductive brush and the shaft and appropriate compensation force. Summary of the Invention

[0009] The purpose of this invention is to provide a combined conductive ring and its assembly method to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] A combined conductive ring includes a ring body and a conductive brush. The ring body is provided with multiple mounting chambers, and the mounting chambers are provided with channels for conductive components to extend out.

[0012] The conductive brush includes an elastic conductive support and a conductive wire bundle, one end of which is a fixed end and is fixedly connected to the ring body;

[0013] The other end of the elastic conductive support is a free end, used to clamp and fix the conductive wire bundle;

[0014] The elastic conductive support has an elastic part in the middle, and the elastic part is accommodated in the mounting cavity;

[0015] The assembly state of the elastic part generates an elastic preload force that pushes the free end and the conductive wire bundle to extend into the inner side of the ring body, so that the end of the conductive wire bundle abuts against the surface of the shaft body.

[0016] Preferably, the eccentricity angle of the channel is 0-45°.

[0017] Preferably, the conductive filament bundle is a metallized carbon fiber bundle, and the end face that contacts the shaft is an arc-shaped contact surface.

[0018] Preferably, the elastic conductive bracket is integrally formed, the fixed end is a folded fitting part, the ring body is provided with a positioning part adapted to the fitting part, and the fitting part is fixed in the positioning part.

[0019] Preferably, it also includes caps installed on both sides of the ring body, wherein the inner edge of the caps is provided with a plurality of fitting blocks that fit against the inner edge of the mounting cavity.

[0020] Preferably, the surface of the interlocking block is provided with a damping block, and the damping block is elastically fitted to the corresponding surface of the elastic conductive bracket.

[0021] Preferably, the ring body has multiple through holes, and the cap has mounting holes with the same number and position as the through holes;

[0022] The through hole and mounting hole are equipped with adjusting components to adjust the contact pressure between the damping block and the corresponding surface of the elastic conductive bracket.

[0023] Preferably, the adjusting component includes a bolt, a spring, and a threaded sleeve;

[0024] The end surface of the bolt engages with the threaded inner wall of the sleeve.

[0025] Preferably, the spring is sleeved outside the bolt and the threaded sleeve, and the spring is located inside the through hole;

[0026] The two ends of the spring are in elastic contact with the inner walls of the two covers, respectively.

[0027] Preferably, the surface of the cover has multiple pin holes for inserting positioning tools, and the pin holes are connected to the mounting chamber.

[0028] The pin hole is located on the outer side of the connection between the elastic part and the free end of the elastic conductive bracket.

[0029] An assembly method for a composite conductive ring includes the following steps:

[0030] S1: Provide the components and positioning pins of the above-mentioned combined conductive ring;

[0031] S2: The conductive brush is assembled into the mounting cavity of the ring body, and the elastic part of the conductive brush is compressed to a preset state;

[0032] S3: Assemble the cover and insert the locating pin into the pin hole of the cover to maintain the compressed state of the elastic part;

[0033] S4: Remove the positioning pin to release the preload of the elastic part and push the conductive wire bundle against the surface of the shaft.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] 1. This invention achieves automatic compensation for the wear of conductive wire bundles without the need for additional compensation components or increasing the overall structural complexity of the conductive ring by using a conductive brush with built-in wear compensation function.

[0036] 2. By setting up a damping block and adjusting components, this invention achieves the effect of flexibly adjusting the compensation force, preventing excessive compensation force from increasing wear, and ultimately obtaining a suitable compensation force to ensure the long-term stable use of the conductive brush.

[0037] 3. By performing arc-shaped treatment on the ends of the conductive wire bundle, the present invention achieves the formation of an arc-shaped contact surface that fits the shaft, so that the end face of the conductive wire bundle and the surface of the shaft form a surface contact, which significantly increases the contact area and can further ensure conduction efficiency and conduction stability. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall appearance of the conductive ring of the present invention;

[0039] Figure 2 This is an exploded view of the conductive ring axial component of the present invention;

[0040] Figure 3 This is a schematic diagram of the annular body of the present invention;

[0041] Figure 4 This is a schematic diagram of the conductive brush of the present invention;

[0042] Figure 5 This is a schematic diagram of the conductive brush assembly of the present invention;

[0043] Figure 6This is a schematic diagram of the conductive brush and the shaft of the present invention in contact.

[0044] Figure 7 This is a schematic diagram of the cover of the present invention;

[0045] Figure 8 This is a schematic diagram showing the positioning pin limiting the elastic part before the conductive ring of the present invention is assembled.

[0046] Figure 9 This is a schematic side sectional view of the ring body of the present invention;

[0047] Figure 10 This is a schematic diagram of the assembly of the damping block and the conductive brush of the present invention;

[0048] Figure 11 This is a cross-sectional schematic diagram of the adjustment mechanism of the present invention;

[0049] Figure 12 This is a schematic diagram of the conductive brush and shaft in the fit state of the present invention;

[0050] Figure 13 This is a schematic diagram of the conductive brush and shaft of the present invention in a bonded state.

[0051] In the picture:

[0052] 100. Ring body; 110. Mounting chamber; 111. Positioning part; 112. Channel; 120. Through hole;

[0053] 200. Conductive brush; 210. Fitting part; 220. Elastic part; 230. Connecting section; 240. Conductive wire bundle; 241. Arc-shaped contact surface;

[0054] 300, Cover; 310, Fitting block; 311, Damping block; 320, Mounting hole; 330, Pin hole; 331, Locating pin;

[0055] 400. Adjusting component; 410. Bolt; 420. Spring; 430. Screw sleeve. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] Please see Figures 1 to 13 The present invention provides the following five embodiments:

[0058] Example 1:

[0059] Please see Figures 1 to 11 A combined conductive ring includes a ring body 100 and a conductive brush 200. The ring body 100 is provided with a plurality of mounting chambers 110, and the mounting chambers 110 are provided with channels 112 for conductive components to extend out.

[0060] Specifically, please refer to Figure 2 Both the mounting chamber 110 and the channel 112 are through-type groove structures, and the opening of the channel 112 penetrates the inner edge of the ring 100. The above-mentioned through-type structure can be obtained by simple production methods, such as stamping or casting. The number of mounting chambers 110 can be adapted to the diameter of the shaft.

[0061] The ring 100 can be made of brass, which has both excellent conductor performance and structural strength, effectively avoiding deformation problems during long-term use. Its surface can also be nickel-plated to improve its corrosion resistance, thereby extending the service life of the ring 100.

[0062] Please see Figure 3 The conductive brush 200 includes an elastic conductive support and a conductive wire bundle 240. One end of the elastic conductive support is a fixed end, which is fixedly connected to the ring body 100. The other end of the elastic conductive support is a free end, which is used to clamp and fix the conductive wire bundle 240.

[0063] Specifically, please refer to Figures 3 to 5 The elastic conductive support is an integrally formed metal structure, the fixed end is a folded fitting part 210, and the ring body 100 is provided with a positioning part 111 that is adapted to the fitting part 210. The positioning part 111 can also be a through groove structure.

[0064] The fitting part 210 is fixed inside the positioning part 111. The thickness of the fitting part 210 is greater than the thickness of the elastic part 220. The fitting part 210 can be pressed into the positioning part 111 by an interference fit process, so that the fitting part 210 and the inner wall of the positioning part 111 maintain good and stable contact, which not only ensures the installation stability of the conductive brush 200, but also forms a stable electrical path between the conductive brush 200 and the ring body 100.

[0065] The elastic conductive support has an elastic part 220 in the middle, which is housed in the mounting chamber 110. The internal space of the mounting chamber 110 is sufficient to meet the bending and rebound range requirements of the elastic part 220.

[0066] The assembled state of the elastic part 220 generates an elastic preload force that pushes the free end and the conductive wire bundle 240 to extend into the inner side of the ring body 100, so that the end of the conductive wire bundle 240 abuts against the surface of the shaft.

[0067] It is worth noting that the free end is located inside the channel 112. The free end can also be processed by bending the material on both sides of the other end of the elastic part 220 to finally form a connecting section 230 with a cavity structure. The cavity inside the connecting section 230 can be used to implant the conductive wire bundle 240. After external pressing, the connecting section 230 shrinks inward, thereby clamping the conductive wire bundle 240. This not only fixes the conductive wire bundle 240, but also forms a stable electrical path between the conductive wire bundle 240 and the connecting section 230.

[0068] Please see Figure 6 The other end of the conductive wire bundle 240 has an arc-shaped contact surface 241 that fits against the surface of the shaft.

[0069] It is worth noting that, please refer to Figure 4 The eccentricity angle of channel 112 is 0-45°. The eccentricity direction can be flexibly configured according to the rotation direction of the shaft, such as: Figure 4 The eccentric angle shown is 10°; and the area of ​​the arc-shaped contact surface 241 is positively correlated with the eccentric angle, that is, the larger the eccentric angle, the larger the area of ​​the arc-shaped contact surface 241, which is used to fit with the shaft and improve the conduction effect.

[0070] Specifically, the conductive wire bundle 240 is a metallized carbon fiber bundle, such as a nickel-plated carbon fiber bundle, that is, the surface of the carbon fiber bundle is plated with metallic nickel, and after being processed by a pressing process, it forms a rod-shaped nickel-plated carbon fiber bundle, and after being bundled, it forms the bristle part of the conductive brush 200, which is used to adhere to the surface of the shaft.

[0071] The end face of the conductive wire bundle 240 is arc-shaped, and the arc-shaped contact surface 241 formed is in contact with the surface of the shaft to form a surface contact. Compared with the traditional point contact and line contact, it has a larger contact area and better conductivity and efficiency.

[0072] It is worth noting that the conductive brush 200 is assembled into the mounting chamber 110 in a compressed state with the elastic part 220 compressed. That is, the elastic part 220 always uses the stored elastic force when it is compressed to generate a rebound force after release, which pushes the conductive wire bundle 240 to move along the opening direction of the channel 112, and finally pushes the conductive wire bundle 240 to abut against the shaft surface. The wear of the conductive wire bundle 240 is compensated by the elastic part 220 of the conductive brush 200 itself. Through self-compensation, the conductive wire bundle 240 can always maintain good contact with the shaft surface.

[0073] Furthermore, the self-compensation relies solely on the elastic portion 220 within the conductive brush 200 itself, without relying on additional elastic components to achieve its compensation function. This eliminates the need to add additional compensation components within the ring body 100, thereby simplifying the overall structure of the conductive ring and the assembly process of the entire conductive ring.

[0074] After the conductive wire bundle 240 contacts the shaft, the electrical energy on the shaft is conducted sequentially to the conductive wire bundle 240 through its contact surface 241 with the arc, and then to the connecting section 230 through the conductive wire bundle 240. The connecting section 230, the elastic part 220, and the fitting part 210 are an integral structure. Finally, the electrical energy is conducted to the ring body 100 through the contact surface between the fitting part 210 and the positioning part 111. Finally, the ring body 100 conducts the electrical energy through its connection with the grounding wire, thereby achieving the purpose of the conductive ring to conduct the electrical energy on the shaft.

[0075] Please see Figure 1 , Figure 2 and Figure 7 Based on the above technical solution, this embodiment also includes a cover 300 installed on both sides of the ring 100, and the inner edge of the cover 300 is provided with a plurality of fitting blocks 310 that fit with the inner edge of the installation chamber 110.

[0076] The cover 300 is used to seal the side opening of the mounting chamber 110 to prevent external debris from entering the mounting chamber 110 and affecting the movement of the connecting section 230.

[0077] It is worth noting that the surface of the interlocking block 310 is provided with a damping block 311, which is elastically attached to the corresponding surface of the elastic conductive bracket.

[0078] Specifically, the damping block 311 is used to clamp the two sides of the connecting section 230. Through the contact friction between the damping block 311 and the connecting section 230, the self-compensation force of the elastic part 220 on the conductive wire bundle 240 is weakened.

[0079] If the compensation force of the conductive wire bundle 240 is not weakened, the contact force between the conductive wire bundle 240 and the shaft surface depends on the magnitude of the rebound force output by the elastic part 220. However, an excessive compensation force will increase the contact friction between the arc-shaped contact surface 241 and the shaft surface. Under the condition that other factors remain unchanged, the wear of the conductive wire bundle 240 is positively correlated with the contact force, which will actually increase the wear of the conductive wire bundle 240, contrary to the purpose of extending the service life of the conductive ring.

[0080] Therefore, by clamping the two sides of the connecting section 230 with the damping block 311, the friction provided by the damping block 311 weakens the elastic compensation force applied by the elastic part 220 to the connecting section 230. This achieves the effect of maintaining good contact between the arc-shaped contact surface 241 on the conductive wire bundle 240 and the shaft surface, while the arc-shaped contact surface 241 adheres to the shaft surface with an appropriate force, thus avoiding the defect that excessive compensation force will increase the wear of the conductive wire bundle 240.

[0081] It is worth noting that the ring body 100 has multiple through holes 120, and the cover 300 has mounting holes 320 with the same number and position as the through holes 120. Adjustment components 400 for adjusting the contact pressure between the damping block 311 and the surface of the connecting section 230 are provided in the through holes 120 and the mounting holes 320.

[0082] Please see Figure 10 The adjusting component 400 is used to adjust the distance between the two caps 300, thereby adjusting the contact force between the damping block 311 and the connecting section 230. If the distance between the two caps 300 is smaller, the pressure applied by the damping block 311 to the surface of the connecting section 230 is greater, the weakening effect of the damping block 311 on the compensation force of the elastic part 220 is greater, the force of the conductive wire bundle 240 against the shaft surface is smaller, and the wear of the conductive wire bundle 240 is smaller. Conversely, if the distance between the two caps 300 is larger, the pressure applied by the damping block 311 to the surface of the connecting section 230 is smaller, the weakening effect of the damping block 311 on the compensation force of the elastic part 220 is smaller, the force of the conductive wire bundle 240 against the shaft surface is greater, and the wear of the conductive wire bundle 240 is greater.

[0083] In practical applications, the self-compensating weakening force can be flexibly adjusted according to factors such as the installation angle of the conductive brush 200, the surface roughness of the shaft, the shaft speed, and the shaft operating conditions, so as to obtain a self-compensating weakening force suitable for the actual application conditions.

[0084] Specifically, please refer to Figure 11 The adjusting component 400 includes a bolt 410, a spring 420 and a threaded sleeve 430. The end surface of the bolt 410 is threadedly engaged with the inner wall of the threaded sleeve 430. The spring 420 is sleeved on the outside of the bolt 410 and the threaded sleeve 430, and the spring 420 is located inside the through hole 120. The two ends of the spring 420 elastically abut against the inner walls of the two caps 300 respectively.

[0085] The end of the threaded sleeve 430 is pressed into the mounting hole 320 of one of the covers 300 by an interference fit, while the bolt 410 passes through the mounting hole 320 of the other cover 300. When the bolt 410 is screwed into the threaded sleeve 430, the distance between the two covers 300 is reduced, thereby driving the damping block 311 to move toward the surface of the connecting section 230 and clamp it. The clamping force of the damping block 311 on the connecting section 230 increases, the weakening force of the output compensation force of the elastic part 220 increases, and the force of the conductive wire bundle 240 against the surface of the shaft is smaller.

[0086] Conversely, when the bolt 410 is unscrewed from the sleeve 430, in conjunction with the elastic force of the spring 420, the distance between the two covers 300 gradually increases, the clamping force of the damping block 311 on the connecting section 230 decreases, the weakening force of the output compensation force of the elastic part 220 decreases, and the force of the conductive wire bundle 240 against the surface of the shaft increases.

[0087] Example 2:

[0088] Please see Figure 12 The eccentricity angle of channel 112 is 0° instead of 10° in the above embodiment 1, while the rest of the technical solutions remain the same.

[0089] When the eccentricity angle of channel 112 is 0°, it means that the center line of channel 112 coincides with the axis of ring 100 and shaft. The conductive wire bundle 240 installed along channel 112 contacts it radially along the shaft, and the area of ​​arc-shaped contact surface 241 is smaller than the area of ​​arc-shaped contact surface 241 in the above embodiment 1.

[0090] The effect of this layout is that it is suitable for shafts that frequently switch between forward and reverse rotation. It can ensure good contact during both forward and reverse rotation, and also has self-compensation and compensation force adjustment functions.

[0091] Example 3:

[0092] Please see Figure 13 The eccentricity angle of channel 112 is 45° instead of 10° in the above embodiment 1, while the rest of the technical solutions remain the same.

[0093] When the eccentricity angle of channel 112 is 45°, it means that the end of the conductive wire bundle 240 is tangent to the surface of the shaft, and the area of ​​the arc-shaped contact surface 241 reaches its maximum value.

[0094] The effect of this layout is that it is suitable for unidirectional shafts with counterclockwise rotation, conducts the signal with the largest contact area, and also has self-compensation and compensation force adjustment functions.

[0095] Example 4:

[0096] Please see Figure 1 and Figure 7 Based on the above technical solution, another embodiment is proposed:

[0097] The cover 300 has multiple pin holes 330 for inserting positioning tools on its surface, and the pin holes 330 are connected to the mounting chamber 110.

[0098] The pin hole 330 is provided on the outside of the connection between the elastic part 220 and the free end of the elastic conductive bracket.

[0099] Specifically, the pin hole 330 can be used with the positioning pin 331 to lock the conductive brush 200 in its compressed state.

[0100] Example 5:

[0101] Based on the technical solution in Embodiment 4 above, an assembly method for a combined conductive ring is proposed, including the following steps:

[0102] S1: Provides the components of the above-mentioned combined conductive ring and the positioning pin 331.

[0103] S2: The conductive brush 200 is assembled into the mounting chamber 110 of the ring 100, and the elastic part 220 of the conductive brush 200 is compressed to a preset state, such as... Figure 8 The state of the elastic part 220 shown.

[0104] S3: Assemble the cover 300 and insert the positioning pin 331 into the pin hole 330 of the cover 300 to maintain the compressed state of the elastic part 220;

[0105] Specifically, after the positioning pin 331 passes through the pin hole 330, it passes through the outer side of the connection between the elastic part 220 and the connecting section 230, thereby maintaining the pre-compressed state of the elastic part 220.

[0106] S4: Remove the positioning pin 331 to release the pre-tightening force of the elastic part 220 and push the conductive wire bundle 240 to abut against the surface of the shaft.

[0107] Specifically, after the conductive ring is fully installed, the compensation force can be adjusted by adjusting the component 400. Finally, the positioning pin 331 is pulled out, so that the elastic part 220 slowly pushes the conductive wire bundle 240 out of the channel 112 through the rebound force, and finally makes the arc-shaped contact surface 241 of the conductive wire bundle 240 fit with the surface of the shaft.

[0108] Alternatively, after the conductive ring is fully installed, the positioning pin 331 can be pulled out directly, so that the arc-shaped contact surface 241 of the conductive wire bundle 240 fits against the surface of the shaft, and then the compensation force can be adjusted by adjusting the adjusting component 400.

[0109] After final installation and debugging, the conductive wire bundle 240 is attached to the surface of the shaft through the arc-shaped contact surface 241. The electrical energy generated by the shaft during operation is conducted to the ring body 100 through the conductive brush 200 and finally discharged through the grounding wire, ensuring the normal use of the shaft.

[0110] Secondly, the elastic part 220 performs wear self-compensation for the conductive wire bundle 240. Without the aid of additional compensation components or the increase in the overall structural complexity of the conductive ring, it achieves the effect of automatically compensating for the wear of the conductive wire bundle 240. Furthermore, the damping block 311 and the adjusting component 400 enable flexible adjustment of the compensation force, preventing excessive compensation force from increasing the wear, and ultimately achieving a suitable compensation force to ensure the long-term stable use of the conductive brush 200.

[0111] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A combined conductive ring, comprising a ring body (100) and a conductive brush (200), characterized in that: The ring (100) is provided with a plurality of mounting chambers (110), and the mounting chambers (110) are provided with channels (112) for conductive components to extend out. The conductive brush (200) includes an elastic conductive support and a conductive wire bundle (240), one end of which is a fixed end and is fixedly connected to the ring (100). The other end of the elastic conductive support is a free end, which is used to clamp and fix the conductive wire bundle (240). The elastic conductive support has an elastic part (220) in the middle, and the elastic part (220) is accommodated in the mounting chamber (110); The assembly state of the elastic part (220) generates an elastic preload force that pushes the free end and the conductive wire bundle (240) to extend into the inside of the ring body (100), so that the end of the conductive wire bundle (240) abuts against the surface of the shaft body. The elastic conductive bracket is integrally formed, the fixed end is a folded fitting part (210), and the ring body (100) is provided with a positioning part (111) that is adapted to the fitting part (210). The fitting part (210) is fixed in the positioning part (111). It also includes caps (300) installed on both sides of the ring (100), and the inner edge of the caps (300) is provided with a plurality of fitting blocks (310) that fit against the inner edge of the mounting chamber (110). The surface of the fitting block (310) is provided with a damping block (311), and the damping block (311) is elastically attached to the corresponding surface of the elastic conductive support; The ring (100) has multiple through holes (120), and the cover (300) has mounting holes (320) in the same number and position as the through holes (120). The through hole (120) and the mounting hole (320) are provided with adjusting components (400) for adjusting the contact pressure between the damping block (311) and the corresponding surface of the elastic conductive bracket.

2. The combined conductive ring according to claim 1, characterized in that: The eccentricity angle of the channel (112) is 0°-45°.

3. The combined conductive ring according to claim 1, characterized in that: The conductive filament bundle (240) is a metallized carbon fiber bundle, and its end face in contact with the shaft is an arc-shaped contact surface (241).

4. A combined conductive ring according to claim 1, characterized in that: The adjusting component (400) includes a bolt (410), a spring (420), and a threaded sleeve (430). The end surface of the bolt (410) engages with the inner thread of the sleeve (430).

5. A combined conductive ring according to claim 4, characterized in that: The spring (420) is sleeved on the outside of the bolt (410) and the threaded sleeve (430), and the spring (420) is located inside the through hole (120); The two ends of the spring (420) elastically abut against the inner walls of the two caps (300).

6. A combined conductive ring according to claim 1, characterized in that: The cover (300) has a plurality of pin holes (330) for inserting positioning tools on its surface, and the pin holes (330) are connected to the mounting chamber (110).

7. A combined conductive ring according to claim 6, characterized in that: The pin hole (330) is provided on the outside of the connection between the elastic part (220) and the free end of the elastic conductive bracket.

8. A method for assembling a combined conductive ring, characterized in that: Includes the following steps: S1: Provide the components of the combined conductive ring as described in claim 7 and the positioning pin (331). S2: The conductive brush (200) is assembled into the mounting chamber (110) of the ring body (100), and the elastic part (220) of the conductive brush (200) is compressed to a preset state; S3: Assemble the cover (300) and insert the positioning pin (331) into the pin hole (330) of the cover (300) to maintain the compressed state of the elastic part (220); S4: Remove the positioning pin (331) to release the preload of the elastic part (220) and push the conductive wire bundle (240) against the surface of the shaft.

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