Conductive ring and method of use thereof

Abstract

This invention discloses a conductive ring and its usage method, including a support ring frame and multiple flow guiding structures. The multiple flow guiding structures are arranged circumferentially at intervals along the support ring frame. Each flow guiding structure includes a mounting cavity, a mounting plate, a flat plate, a guide block, a constant force drive unit, and a brush head. The mounting cavity is fixedly connected to the mounting plate. The flat plate and the guide block are both movably disposed within the mounting cavity, and the guide block is fixedly connected to the flat plate. The constant force drive unit is disposed within the mounting cavity. The movable part of the constant force drive unit is subjected to continuous lateral tension and cooperates with the guide block through an inclined movement path. The brush head is mounted on one side of the flat plate and can extend out of the mounting cavity corresponding to the center of the conductive ring. This invention has the advantages of adaptively adjusting the position of the brush head when it wears, ensuring the brush head always remains in contact with the rotating shaft contact surface, allowing the conductive ring to operate stably while fully utilizing the brush head; and avoiding the generation of strong electromagnetic pulses during discharge, which could affect the signals of surrounding electronic devices.

Description

Technical Field

[0001] This invention relates to the field of conductive ring technology, specifically conductive rings and their usage methods. Background Technology

[0002] In electric motors, generators, and other high-speed rotating machinery, rotating shafts often generate unwanted and harmful charges, including useless induced current and static electricity, during operation due to electromagnetic induction or friction. If these charges accumulate on the shaft, they can form a high voltage, eventually finding a path to be suddenly released, resulting in destructive consequences.

[0003] To prevent such hazards, the industry commonly uses conductive rings as a basic protection measure. These conductive rings do not participate in the active function transmission of the equipment; their core function is to provide a continuous, reliable, and low-impedance discharge path for harmful charges on the rotating shaft, allowing them to be safely conducted to the ground, thereby preventing charge accumulation.

[0004] Traditional conductive rings include structures such as a current-guiding brush, brush holder, support ring frame, and terminals. The support ring frame serves as the skeleton of the conductive ring, used to install and support the current-guiding brush, brush holder, and terminals. The current-guiding brush and brush holder are connected and mounted on the support ring. The brush head is usually made of carbon or metal, with the brush head facing the center of the conductive ring. The brush head contacts the surface of the shaft that passes through the middle of the conductive ring. The terminals are mounted on the conductive ring and used to connect the grounding wire bundle for current guiding.

[0005] The brush head of the flow guide brush on the conductive ring contacts the rotating shaft. The brush head continuously rubs against the high-speed rotating shaft surface, making it a wear part. As wear intensifies, the brush head shortens, gradually weakening the contact pressure with the shaft surface. Once the brush head wears down and cannot fully contact the shaft surface, a gap may form, interrupting the flow path. The flow guide brush cannot be adjusted in time, affecting the normal use of the conductive ring. In a short time, useless induced electricity or static electricity accumulates continuously. Excessively high voltage from this useless induced electricity or static electricity can discharge onto the shaft surface, forming pits and damaging the surface finish and geometric accuracy.

[0006] In view of this, we propose a conductive ring and its usage method. Summary of the Invention

[0007] The purpose of this invention is to provide a conductive ring and its method of use to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a conductive ring, comprising a support ring frame and multiple current-guiding structures;

[0009] Multiple flow guiding structures are arranged at circumferential intervals along the support ring frame;

[0010] The flow guiding structure includes an installation cavity, an installation plate, a flat plate, a guide block, a constant force drive unit, and a brush head;

[0011] The mounting cavity is fixedly connected to the mounting plate. The plate and the guide block are both movably disposed in the mounting cavity, and the guide block is fixedly connected to the plate. The constant force drive unit is disposed in the mounting cavity. The movable part of the constant force drive unit is subjected to continuous lateral tension and cooperates with the guide block through an inclined moving path. The brush head is mounted on one side of the plate, and the brush head can extend out of the center of the corresponding conductive ring in the mounting cavity.

[0012] The constant force drive unit is used to convert the lateral tension into a thrust that pushes the guide block to move longitudinally along the mounting cavity, thereby driving the brush head to continuously abut against the surface of the shaft in the direction of the ring center.

[0013] Preferably, the inner circumference of the support ring frame has a plurality of embedding slots A arranged in a ring array, and the outer circumference of the support ring frame has a plurality of embedding slots B arranged in a ring array. The plurality of embedding slots A and the plurality of embedding slots B correspond one-to-one and are connected. The mounting cavity is inserted into the embedding slot A, and the mounting plate is inserted into the embedding slot B and fixed.

[0014] Preferably, the constant force drive unit includes a drum, a mounting frame, an elastic metal belt, and a pusher block;

[0015] The drum is fixedly connected to the mounting frame, the mounting frame is fixedly connected to the inner wall of the mounting cavity, the elastic metal strip is wound inside the drum, and the winding end of the elastic metal strip is fixed to the connecting shaft fixed inside the drum. The free end of the elastic metal strip extends out of the drum and extends laterally. The push block is fixed to the free end of the elastic metal strip, and a guide shaft is fixed at the end of the push block. The guide shaft slides in cooperation with the guide groove that is inclinedly opened on the guide block.

[0016] Preferably, a guide strip is fixed on the drum, and the guide strip passes through the push block to guide the lateral movement of the push block.

[0017] Preferably, the brush head is connected to the flat plate via a detachable mounting unit;

[0018] The detachable mounting unit includes a fixing sleeve, a plug-in cavity, and a brush head;

[0019] The fixing sleeve is fixed to one side of the flat plate, and one end of the brush head is connected to the insertion cavity, which can be inserted into the fixing sleeve.

[0020] The mounting groove on the fixed sleeve is provided with a positioning spring, which abuts against the abutment groove on the outer wall of the insertion cavity.

[0021] Preferably, the mounting cavity has a through hole at one end corresponding to the center of the conductive ring, through which the detachable mounting unit and brush head can pass, and the area of ​​the flat plate is larger than the area of ​​the through hole.

[0022] Preferably, the mounting plate is provided with a limiting unit to position the brush head in the installation state.

[0023] Application of conductive rings in cleanroom conditions, wherein the limiting unit in such conditions includes two abutment springs and a fixed shaft;

[0024] The two abutting springs are respectively disposed in the operating holes of the mounting plate used in clean working conditions. The fixed shaft passes through the ends of the two abutting springs and the ends of the fixed shaft are fixedly connected to the inner wall of the operating hole. The abutting ends of the two abutting springs abut against the limiting grooves A opened on the two guide blocks.

[0025] The two abutting springs are staggered and their abutting ends are opposite to each other.

[0026] Application of conductive rings in dusty working conditions, wherein the limiting unit in such working conditions includes a rotating shaft and a limiting plate;

[0027] The limiting plate is rotatably connected to the mounting plate used in dusty conditions via a rotating shaft. The two ends of the limiting plate are respectively inserted into the limiting grooves B opened on the two guide blocks, so that the chamber where the constant force drive unit is located is dustproof.

[0028] The method of using conductive rings is as follows:

[0029] S1. When installing the flow guiding structure, the guide block, plate, detachable installation unit and brush head are in the state of being pushed into the installation cavity. At this time, the guide shaft is at the lower end of the guide groove, the elastic metal belt generates a lateral pulling force on the push block, and the limiting unit positions the two guide blocks at this time.

[0030] S2. Insert the mounting cavity into the embedding groove A, insert the mounting plate into the embedding groove B and fix it, thus completing the installation of the flow guiding structure on the support ring frame;

[0031] S3. The support ring frame with the flow guiding structure is installed on the equipment. The shaft of the equipment passes through the support ring frame. Then the positioning of the two guide blocks by the limiting unit is released. The lateral tension generated by the constant force drive unit is converted into a thrust that pushes the guide blocks to move longitudinally along the installation cavity, pushing the brush head to continuously contact the surface of the shaft.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] 1. This invention, by setting a flow guiding structure, allows the brush head with a conductive ring to maintain long-term contact with the rotating shaft contact surface. This enables the brush head to adaptively adjust its position even when worn, ensuring it remains in constant contact with the rotating shaft contact surface. The conductive ring operates stably while fully utilizing the brush head. This avoids the strong electromagnetic pulses generated by discharge that could affect the signals of surrounding electronic devices. It also solves the problem of insufficient contact between an excessively worn brush head and the shaft surface, leading to interruption of the flow path, inability to adjust the brush head in time, and the damage to the surface finish and geometric accuracy of the shaft caused by the continuous accumulation of useless induced or static electricity over a short period.

[0034] 2. Modular structure design allows for the individual installation and removal of a flow guide structure, enabling the use of multiple conductive ring components of the same model in an alternating manner; furthermore, the brush head of a single flow guide structure can be installed and removed separately, allowing for easy replacement of the brush head and resulting in lower costs.

[0035] 3. Before the conductive ring is installed with the rotating shaft, the limiting unit can keep the brush head at the end of the flow guiding structure. There is enough space in the middle of the conductive ring to connect with the shaft. The brush head remains stable during installation and will not move, thus affecting the connection between the conductive ring and the shaft. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention under clean working conditions;

[0037] Figure 2 This is a schematic diagram of the support ring frame structure of the present invention;

[0038] Figure 3 This is an exploded view of the flow guiding structure of the present invention;

[0039] Figure 4 This is a cross-sectional view of the flow guiding structure of the present invention in its installation state;

[0040] Figure 5 This is a cross-sectional view of the flow guiding structure of the present invention in use.

[0041] Figure 6 This is a schematic diagram of the connection of the constant force drive unit of the present invention;

[0042] Figure 7 This is a cross-sectional schematic diagram of the constant force drive unit of the present invention;

[0043] Figure 8 This is a schematic diagram of the connection of the flexible limiting unit of the present invention;

[0044] Figure 9 This is an exploded view of the detachable mounting unit of the present invention;

[0045] Figure 10 This is a schematic cross-sectional view of the mounting cavity of the present invention;

[0046] Figure 11 This is a cross-sectional schematic diagram of the installation state of the flow guiding structure under dust conditions according to the present invention;

[0047] Figure 12 This is a cross-sectional schematic diagram of the flow guiding structure under dust conditions in use according to the present invention;

[0048] Figure 13 This is a schematic diagram of the overall structure of the present invention under dust conditions.

[0049] In the diagram: 100, support ring frame; 200, flow guiding structure;

[0050] 101. Embedded slot A; 102. Embedded slot B;

[0051] 201. Mounting cavity; 202. Mounting plate; 203. Bolt; 204. Flat plate; 205. Guide block; 206. Constant force drive unit; 207. Detachable mounting unit; 208. Brush head; 209. Limiting unit;

[0052] 2011, Perforation;

[0053] 2021, Operating Hole;

[0054] 2051, Guide groove; 2052, Limiting groove A; 2053, Limiting groove B;

[0055] 2061, Drum; 2062, Mounting bracket; 2063, Connecting shaft; 2064, Elastic metal belt; 2065, Push block; 2066, Guide shaft; 2067, Guide strip;

[0056] 2071. Fixing sleeve; 2072. Insertion cavity; 2073. Positioning spring; 2074. Mounting groove; 2075. Abutment groove;

[0057] 2091, Abutting spring; 2092, Fixed shaft; 2093, Rotating shaft; 2094, Limiting plate. Detailed Implementation

[0058] 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.

[0059] Please see Figures 1 to 5 , Figure 13 The conductive ring includes a support ring frame 100 and multiple current guiding structures 200; the multiple current guiding structures 200 are arranged in a ring array along the circumference of the support ring frame 100.

[0060] The flow guiding structure 200 includes a mounting cavity 201, a mounting plate 202, a flat plate 204, two guide blocks 205, a constant force drive unit 206, and a brush head 208. The mounting cavity 201 is fixedly connected to the mounting plate 202. The flat plate 204 and the two guide blocks 205 are movably disposed within the mounting cavity 201, and the two guide blocks 205 are symmetrically fixed on the flat plate 204. The four sides of the flat plate 204 are in smooth contact with the inner wall of the mounting cavity 201. The constant force drive unit 206 is disposed within the mounting cavity 201. The movable part of the constant force drive unit 206 is subjected to a continuous lateral tensile force and cooperates with the guide blocks 205 through an inclined moving path. The brush head 208 is mounted on one side of the flat plate 204, and the brush head 208 can extend out of the center of the corresponding conductive ring in the mounting cavity 201.

[0061] In this embodiment, the brush head 208 is made of nickel-plated carbon fiber. The nickel-plated carbon fiber brush head 208 replaces the original carbon brush or metal brush. Compared with metal brush, the metallized carbon fiber brush is lighter. Compared with carbon brush, the metallized carbon fiber brush has better conductivity. The nickel-plated carbon fiber brush head 208 combines the lightweight and high strength of carbon fiber with the high conductivity of the surface metal layer. This design breaks through the limitations of a single material and meets the comprehensive requirements for weight, strength and conductivity.

[0062] In this embodiment, the flow guiding structure 200 as a whole has a flow guiding function.

[0063] In this embodiment, the support ring frame 100 can be made of metal materials, such as copper alloy or aluminum alloy. The metal support ring frame 100 is connected to the terminal block for connecting the grounding wire harness for current conduction.

[0064] The constant force drive unit 206 converts the lateral tension into a thrust that moves the guide block 205 longitudinally along the mounting cavity 201, thereby driving the brush head 208 to continuously abut against the surface of the shaft in the direction of the ring center. The tension generated by the constant force drive unit 206 is relatively constant. When the nickel-plated carbon fiber brush head 208 wears, the brush head 208 is adaptively pushed out to adjust its position, ensuring that the brush head 208 can always be in contact with the surface of the shaft. The constant force allows the brush head 208 to be stably adjusted.

[0065] The brush head 208 of the conductive ring is in long-term contact with the rotating shaft contact surface. It can adaptively adjust the position of the brush head 208 when it wears, so that the brush head 208 always maintains contact with the rotating shaft contact surface. The conductive ring works stably while making full use of the brush head 208. This avoids the generation of strong electromagnetic pulses by discharge, which would affect the signals of surrounding electronic equipment.

[0066] For details, please refer to Figure 2 and Figure 3The support ring frame 100 has multiple embedding slots A101 arranged in a ring array on its inner circumference, and multiple embedding slots B102 arranged in a ring array on its outer circumference. The embedding slots A101 and B102 correspond one-to-one and are connected. The mounting cavity 201 is inserted into the embedding slot A101, and the mounting plate 202 is inserted into and fixed into the embedding slot B102. The flow guiding structure 200 is embedded within the support ring frame 100, occupying minimal space, and the resulting conductive ring is a complete ring shape.

[0067] In this embodiment, the mounting plate 202 is fixed to the support ring frame 100 by bolts 203, and the bolts 203 pass through the mounting plate 202 and are screwed into the screw holes on the support ring frame 100.

[0068] The modular design allows for the individual installation and removal of a single flow guide structure 200, enabling the interchangeable use of multiple conductive ring components of the same model.

[0069] Please see Figure 6 and Figure 7 The constant force drive unit 206 includes a drum 2061, a mounting bracket 2062, an elastic metal belt 2064, and a pusher block 2065;

[0070] The drum 2061 is fixedly connected to the mounting bracket 2062, which is fixedly connected to the inner wall of the mounting cavity 201. The elastic metal strip 2064 is wound inside the drum 2061, and the wound end of the elastic metal strip 2064 is fixed to the connecting shaft 2063 fixed inside the drum 2061. A bushing can be provided at the connection between the connecting shaft 2063 and the drum 2061 to support the connecting shaft 2063 to achieve low-resistance rotation and ensure smooth release of the elastic metal strip 2064. The elastic metal strip 2064 is tightly wound on the connecting shaft 2063, storing a huge amount of bending elastic potential energy. This is the fundamental source of generating constant tension. The free end of the elastic metal strip 2064 extends out of the drum 2061 and extends laterally. The push block 2065 is fixed to the free end of the elastic metal strip 2064, and a guide shaft 2066 is fixed to the end of the push block 2065. The guide shaft 2066 slides in cooperation with the guide groove 2051 inclinedly opened on the guide block 205. The tension generated by the elastic metal strip 2064 pulls the push block 2065, which drives the guide shaft 2066 to move from a low position to a high position along the inclined guide groove 2051, forcing the two guide blocks 205 to be pushed out along the mounting cavity 201, causing the plate 204 to push the brush head 208 out stably, and the brush head 208 always maintains contact with the shaft.

[0071] In this embodiment, the elastic metal strip 2064 can be made of high-elasticity stainless steel such as 301 / 304, and undergoes special heat treatment to obtain optimal elasticity and fatigue life.

[0072] In this embodiment, a guide strip 2067 is fixed on the drum 2061. The guide strip 2067 passes through the push block 2065. During the process of the push block 2065 being pulled by the elastic metal belt 2064, the push block 2065 moves laterally along the guide strip 2067 to guide the lateral movement of the push block 2065 and maintain its stability.

[0073] Please see Figure 3 and Figure 9 The brush head 208 is connected to the flat plate 204 via a detachable mounting unit 207;

[0074] The detachable mounting unit 207 includes a fixing sleeve 2071, a insertion cavity 2072, and a brush head 208. The fixing sleeve 2071 is fixed to one side of the flat plate 204, and one end of the brush head 208 is connected to the insertion cavity 2072, which can be inserted into the fixing sleeve 2071. A positioning spring 2073 is provided in the mounting groove 2074 on the fixing sleeve 2071, and the positioning spring 2073 abuts against the abutment groove 2075 on the outer wall of the insertion cavity 2072.

[0075] The insertion cavity 2072 is inserted into the fixing sleeve 2071, and the positioning spring 2073 abuts against the abutment groove 2075 to achieve a fixed connection between the insertion cavity 2072 and the fixing sleeve 2071. The insertion cavity 2072 and the fixing sleeve 2071 are connected by elastic abutment, which is convenient for disassembly and replacement. The brush head 208 of a single flow guiding structure 200 can be installed and removed individually, and a new brush head 208 can be replaced at any time.

[0076] In this embodiment, the positioning spring 2073 has an arc-shaped cross section, and extension sections are provided on both sides of the positioning spring 2073. The extension sections are inserted into the insertion holes provided on the inner wall of the mounting groove 2074 and fixed. The arched section of the positioning spring 2073 extends out of the mounting groove 2074 and is located in the fixing sleeve 2071.

[0077] In this embodiment, please refer to Figure 10 The mounting cavity 201 has a through hole 2011 at one end corresponding to the center of the conductive ring. The detachable mounting unit 207 and the brush head 208 can pass through the through hole 2011, and the area of ​​the flat plate 204 is larger than the area of ​​the flat plate 2011. After the flat plate 204 moves to one end of the mounting cavity 201 corresponding to the center of the conductive ring, it is limited, and the brush head 208 has a maximum push-out distance, preventing the flat plate 204 from moving out of the mounting cavity 201 and affecting the contact stability between the brush head 208 and the shaft.

[0078] In this embodiment, the nickel-plated carbon fiber brush head 208 is inserted into the insertion cavity 2072 and fixed.

[0079] Furthermore, a limiting unit 209 is provided on the mounting plate 202 to position the brush head 208 in the installation state.

[0080] Based on the application of the conductive ring under different working conditions:

[0081] Please see Figure 1 , Figure 4 , Figure 5 and Figure 8 The application of conductive rings in clean working conditions, the limiting unit 209 in such working conditions includes two abutment springs 2091 and a fixed shaft 2092;

[0082] Two abutment springs 2091 are respectively disposed in the operation holes 2021 of the mounting plate 202 used in cleanroom conditions. A fixed shaft 2092 passes through the ends of the two abutment springs 2091, and the ends of the fixed shaft 2092 are fixedly connected to the inner wall of the operation hole 2021. The abutment ends of the two abutment springs 2091 abut against the limiting grooves A2052 opened on the two guide blocks 205. The abutment ends of the two abutment springs 2091 are arc-shaped. During the process of the guide block 205 being pushed into the mounting cavity 201, the guide block 205 can squeeze the arc surface of the abutment ends of the abutment springs 2091, smoothly squeezing the abutment springs 2091 until the guide block 205 is pushed into place. The squeezed abutment springs 2091 rebound, causing the abutment ends of the abutment springs 2091 to abut against the limiting grooves A2052, thus positioning the guide block 205.

[0083] In this embodiment, the two abutment springs 2091 are staggered and their abutment ends are opposite to each other, and the limiting grooves A2052 on the two guide blocks 205 are also staggered accordingly. Under normal circumstances, the thumb and forefinger of the operator are in a staggered state when pressing, and the two staggered abutment springs 2091 facilitate the operator's thumb and forefinger to press.

[0084] Please see Figures 11 to 13 Application of conductive rings in dusty working conditions, the limiting unit 209 in such working conditions includes a rotating shaft 2093 and a limiting plate 2094;

[0085] The limiting plate 2094 is rotatably connected to the mounting plate 202 used in dusty conditions via the rotating shaft 2093. The two ends of the limiting plate 2094 are respectively inserted into the limiting grooves B2053 opened on the two guide blocks 205, so that the chamber where the constant force drive unit 206 is located is dustproof.

[0086] In this embodiment, a hexagonal hole is provided at the outer end of the rotating shaft 2093, which is convenient to be turned with a hexagonal bolt, thereby driving the rotating shaft 2093 and the limiting plate 2094 to rotate and adjust the limiting plate 2094.

[0087] In this embodiment, the end of the limiting plate 2094 is arc-shaped, and the limiting groove B2053 is also arc-shaped, so that the end of the limiting plate 2094 enters and exits the limiting groove B2053 during rotation.

[0088] The method of using the conductive ring is as follows:

[0089] S1. When the flow guiding structure 200 is installed on the support ring frame 100, the guide block 205, plate 204, detachable installation unit 207 and brush head 208 are in the state of being pushed into the installation cavity 201. At this time, the guide shaft 2066 is at the lower end of the guide groove 2051, the elastic metal strip 2064 generates a lateral pulling force on the push block 2065, and the limiting unit 209 positions the two guide blocks 205 at this time.

[0090] S2. Insert the mounting cavity 201 into the embedding groove A101, insert the mounting plate 202 into the embedding groove B102, and screw the bolt 203 through the mounting plate 202 into the screw hole on the support ring frame 100 to fix the mounting plate 202 to the support ring frame 100, thereby fixing the flow guiding structure 200 to the support ring frame 100 and completing the installation of the flow guiding structure 200 on the support ring frame 100.

[0091] S3. The support ring frame 100 with the flow guiding structure 200 is installed on the equipment. The shaft of the equipment passes through the support ring frame 100. Then, the positioning of the two guide blocks 205 by the limiting unit 209 is released. After the two guide blocks 205 are no longer restricted, the lateral tension generated by the elastic metal strip 2064 pulls the push block 2065, forcing the guide shaft 2066 to move from the lower end to the upper end along the inclined guide groove 2051. The lateral tension is converted into a thrust that pushes the guide block 205 to move longitudinally along the mounting cavity 201, pushing the guide block 205, the plate 204, the detachable mounting unit 207 and the brush head 208 out together, so that the brush head 208 contacts the surface of the shaft.

[0092] Harmful charges on the rotating shaft are conducted away from the conductive ring through the grounding wire harness; as the shaft continues to rotate, the brush head 208 wears down. Once the brush head 208 is worn down, the constant force drive unit 206 pushes the brush head 208 so that the brush head 208 continues to contact the shaft to remove harmful charges.

[0093] 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 conductive ring, characterized in that: It includes a support ring frame (100) and multiple flow guiding structures (200); Multiple flow guiding structures (200) are arranged at circumferential intervals along the support ring frame (100); The flow guiding structure (200) includes a mounting cavity (201), a mounting plate (202), a flat plate (204), a guide block (205), a constant force driving unit (206), and a brush head (208). The mounting cavity (201) is fixedly connected to the mounting plate (202). The plate (204) and the guide block (205) are both movably disposed in the mounting cavity (201), and the guide block (205) is fixedly connected to the plate (204). The constant force drive unit (206) is disposed in the mounting cavity (201). The movable part of the constant force drive unit (206) is subjected to continuous lateral tension and cooperates with the guide block (205) through an inclined moving path. The brush head (208) is installed on one side of the plate (204), and the brush head (208) can extend out of the center of the corresponding conductive ring of the mounting cavity (201). The constant force drive unit (206) is used to convert the lateral tension into a thrust that pushes the guide block (205) to move longitudinally along the mounting cavity (201), thereby driving the brush head (208) to continuously abut against the surface of the shaft in the direction of the ring center; The constant force drive unit (206) includes a drum (2061), a mounting bracket (2062), an elastic metal belt (2064), and a pusher (2065). The drum (2061) is fixedly connected to the mounting frame (2062), the mounting frame (2062) is fixedly connected to the inner wall of the mounting cavity (201), the elastic metal strip (2064) is wound inside the drum (2061), and the winding end of the elastic metal strip (2064) is fixed to the connecting shaft (2063) fixed inside the drum (2061), the free end of the elastic metal strip (2064) extends out of the drum (2061) and extends laterally, the push block (2065) is fixed to the free end of the elastic metal strip (2064), and the end of the push block (2065) is fixed with a guide shaft (2066), and the guide shaft (2066) slides in cooperation with the guide groove (2051) inclinedly opened on the guide block (205); A guide strip (2067) is fixed on the drum (2061), and the guide strip (2067) passes through the push block (2065) to guide the lateral movement of the push block (2065).

2. The conductive ring according to claim 1, characterized in that: The inner circumference of the support ring frame (100) is provided with a plurality of embedded slots A (101) arranged in a ring array, and the outer circumference of the support ring frame (100) is provided with a plurality of embedded slots B (102) arranged in a ring array. The plurality of embedded slots A (101) and the plurality of embedded slots B (102) correspond one to one and are connected. The mounting cavity (201) is inserted into the embedded slot A (101), and the mounting plate (202) is inserted into the embedded slot B (102) and fixed.

3. The conductive ring according to claim 1, characterized in that: The brush head (208) is connected to the plate (204) via a detachable mounting unit (207); The detachable mounting unit (207) includes a fixing sleeve (2071), a plug-in cavity (2072), and a brush head (208). The fixing sleeve (2071) is fixed on one side of the plate (204), and one end of the brush head (208) is connected to the insertion cavity (2072), which can be inserted into the fixing sleeve (2071); The mounting groove (2074) on the fixed sleeve (2071) is provided with a positioning spring (2073), and the positioning spring (2073) abuts against the abutting groove (2075) on the outer wall of the insertion cavity (2072).

4. The conductive ring according to claim 3, characterized in that: The mounting cavity (201) has a through hole (2011) at one end corresponding to the center of the conductive ring. The detachable mounting unit (207) and the brush head (208) can pass through the through hole (2011), and the area of ​​the flat plate (204) is greater than the area of ​​the through hole (2011).

5. The conductive ring according to claim 1, characterized in that: The mounting plate (202) is provided with a limiting unit (209) to position the brush head (208) in the installation state.

6. The conductive ring according to claim 5, characterized in that: Applications in cleanroom environments: The limiting unit (209) under such working conditions includes two abutment springs (2091) and a fixed shaft (2092). The two abutment springs (2091) are respectively disposed in the operation holes (2021) opened in the mounting plate (202) used in clean working conditions. The fixed shaft (2092) passes through the ends of the two abutment springs (2091), and the ends of the fixed shaft (2092) are fixedly connected to the inner wall of the operation hole (2021). The abutment ends of the two abutment springs (2091) abut against the limiting grooves A (2052) opened on the two guide blocks (205). The two abutting springs (2091) are staggered and their abutting ends are opposite to each other.

7. The conductive ring according to claim 5, characterized in that: Applications in dusty working conditions: The limiting unit (209) under this type of working condition includes a rotating shaft (2093) and a limiting plate (2094). The limiting plate (2094) is rotatably connected to the mounting plate (202) used in dusty conditions via a rotating shaft (2093). The two ends of the limiting plate (2094) are respectively inserted into the limiting grooves B (2053) opened on the two guide blocks (205) to make the chamber where the constant force drive unit (206) is located dustproof.

8. The method of using the conductive ring, characterized in that: The conductive ring according to any one of claims 1-5 is used as follows: S1. When installing the flow guide structure (200), the guide block (205), plate (204), detachable installation unit (207) and brush head (208) are in the state of being pushed into the installation cavity (201). At this time, the guide shaft (2066) is at the lower end of the guide groove (2051), the elastic metal strip (2064) generates a lateral pulling force on the push block (2065), and the limiting unit (209) positions the two guide blocks (205) at this time. S2. The mounting cavity (201) is inserted into the embedding groove A (101), and the mounting plate (202) is inserted into the embedding groove B (102) and fixed, thus completing the installation of the flow guiding structure (200) on the support ring frame (100); S3. The support ring frame (100) with the flow guide structure (200) is installed on the equipment. The shaft of the equipment passes through the support ring frame (100). Then the positioning of the two guide blocks (205) by the limiting unit (209) is released. The lateral tension generated by the constant force drive unit (206) is converted into a thrust that pushes the guide block (205) to move longitudinally along the mounting cavity (201), pushing the brush head (208) to continuously contact the surface of the shaft.

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