Moving plate driving chain wheel and moving plate driving assembly

Abstract

The application provides a mobile polar plate driving chain wheel and a mobile polar plate driving assembly, and belongs to the technical field of flue gas removal equipment. The mobile polar plate driving chain wheel comprises a chain wheel body, an inner bushing and a connecting sleeve. The inner bushing is inserted into the inner ring of the chain wheel body, and the inner ring of the inner bushing is attached to the shaft body of the mobile polar plate shaft. The first end of the connecting sleeve is connected with the chain wheel body, and the second end is connected with the end key of the mobile polar plate shaft. The mobile polar plate driving chain wheel provided by the application has a detachable design of the connecting sleeve and the chain wheel body, and an independent fault tripping channel is constructed. When a single mobile polar plate is stuck, the entire transmission unit does not need to be disassembled for shutdown, and only the connection between the connecting sleeve and the chain wheel body needs to be released, so that the chain wheel body can be idled with the chain, and other mobile polar plates can still operate normally, the influence range of the fault is minimized, the dust removal system is avoided from being interrupted, the production stability is ensured, and economic losses are reduced.

Description

Technical Field

[0001] This application belongs to the technical field of flue gas removal equipment, specifically relating to a movable electrode plate drive sprocket and a movable electrode plate drive assembly. Background Technology

[0002] The movable electrode sprocket is a solid double-row sprocket that meshes with a chain to transmit motion. It transmits and changes torque, speed, and power between two unconnected shafts without slipping. The movable electrode sprocket brings the movable electrode into contact with the fixed brush roller, thereby removing the dust collected on the movable electrode.

[0003] Currently, traditional movable electrode plate sprockets are directly mounted to the shaft end of the movable electrode plate via a flat key. Typically, 4-5 sets of movable electrode plates form a transmission unit. The main drive sprocket, positioned high, directly drives the two nearest sets of movable electrode plate sprockets below it to rotate. The other row of teeth on these two sets of movable electrode plate sprockets then drives the adjacent movable electrode plates to rotate, thus completing torque transmission and enabling the main drive sprocket to simultaneously drive 4-5 sets of movable electrode plates. This fully meshing transmission design means that a failure in a single component can easily propagate to the entire transmission chain. If any movable electrode plate directly driven by the main drive sprocket jams, both rows of chains cannot continue transmission simultaneously. The main drive motor will trip due to overcurrent protection, forcing all movable electrode plates in the entire transmission unit to stop operating. This directly impacts the cleaning process, prolongs cleaning time, and affects the continuity of the brush roller's operation. Utility Model Content

[0004] This application provides a movable electrode plate drive sprocket and a movable electrode plate drive assembly, aiming to solve the technical problem in the prior art where the movable electrode plate sprocket is designed for full meshing, which makes it easy for a single component failure to spread to the entire transmission chain, seriously affecting the overall work progress and resulting in low work efficiency.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, a movable pole plate drive sprocket is provided, comprising: Sprocket body; An inner bushing is inserted into the inner ring of the sprocket body, and the inner ring of the inner bushing is fitted against the shaft of the movable pole plate shaft; and The connecting sleeve has its first end connected to the sprocket body and its second end connected to the key at the end of the movable electrode plate shaft.

[0006] In conjunction with the first aspect, in one possible implementation, a set screw hole is provided on the sprocket body along the radial direction of the inner bushing, and a set screw is provided in the set screw hole. The set screw is pressed against the inner bushing so that the sprocket body and the inner bushing rotate synchronously.

[0007] In conjunction with the first aspect, in one possible implementation, the connecting sleeve includes: A sleeve, fitted onto the end of the movable electrode shaft and keyed to the end of the movable electrode shaft; and A connecting plate is installed on the end face of the sleeve near the sprocket body, and the connecting plate is connected to the sprocket body.

[0008] In conjunction with the first aspect, in one possible implementation, the connecting plate is connected to the sprocket body via a connecting assembly, the connecting plate has a connecting hole, and the sprocket body has a mounting hole corresponding to the connecting hole; The connecting assembly includes a bolt with a nut and a screw, the ends of the bolt passing sequentially through the connecting hole and the mounting hole and being screwed into the nut, the nut and the screw engaging to clamp the sprocket body and the connecting plate.

[0009] In conjunction with the first aspect, in one possible implementation, the width of the connecting plate gradually increases from both ends toward the middle.

[0010] In conjunction with the first aspect, in one possible implementation, the connecting sleeve has a keyway along its own radial direction, and a flat key is provided in the keyway. The connecting sleeve is keyed to the shaft end of the movable electrode plate through the flat key.

[0011] In conjunction with the first aspect, in one possible implementation, the thickness of the inner liner is 1 to 1.5 mm.

[0012] In conjunction with the first aspect, in one possible implementation, the outer periphery of the end of the inner liner away from the connecting sleeve is provided with a limiting protrusion, and the sprocket body is provided with a limiting ring groove corresponding to the limiting protrusion, and the limiting protrusion and the limiting ring groove are inserted into each other.

[0013] In conjunction with the first aspect, in one possible implementation, the axial length of the inner bushing is equal to the inner ring length of the sprocket body, and the inner ring surface of the inner bushing is flush with the inner ring surface of the connecting sleeve.

[0014] Compared with existing technologies, the movable electrode plate drive sprocket provided in this application constructs an independent fault resolution channel through the detachable design of the connecting sleeve and the sprocket body. When a single movable electrode plate jams, there is no need to stop the machine and disassemble the entire transmission unit. Only the connection between the connecting sleeve and the sprocket body needs to be disconnected, allowing the sprocket body to spin freely with the chain, while other movable electrode plates can still operate normally. This minimizes the impact of the fault, avoids interruption of the dust removal system, ensures production stability, and reduces economic losses. The addition of the inner bushing improves the assembly accuracy of the sprocket body and the movable electrode plate shaft, avoiding wear caused by direct contact, and can adapt to movable electrode plate shafts of different diameters, enhancing the product's versatility. The inner bushing can buffer vibrations during operation, reduce impact damage to the sprocket body and shaft, and extend the service life of components. The modular design of the overall structure makes assembly and maintenance more convenient. Fault diagnosis does not require disassembly of the shaft, reducing the difficulty and labor intensity of operation and maintenance, shortening fault handling time, and further improving the operating efficiency of the dust removal system.

[0015] Secondly, a movable electrode plate drive assembly is provided, comprising: Drive motor; Multiple movable electrode plates, one of which is connected to the output terminal of the drive motor, and each movable electrode plate is rotatably provided with a movable electrode plate shaft; and Multiple movable electrode drive sprockets, as described in any of the above possible implementations, are mounted on the corresponding movable electrode shaft, and the multiple movable electrode drive sprockets are connected by a chain for transmission.

[0016] Compared with existing technologies, the movable electrode plate drive assembly provided in this application constructs an independent fault resolution channel through the detachable design of the connecting sleeve and the sprocket body. When a single movable electrode plate jams, there is no need to stop the machine and disassemble the entire transmission unit. Only the connection between the connecting sleeve and the sprocket body needs to be disconnected, allowing the sprocket body to spin freely with the chain, while other movable electrode plates can still operate normally. This minimizes the impact of the fault, avoids interruption of the dust removal system, ensures production stability, and reduces economic losses. The addition of the inner bushing improves the assembly accuracy of the sprocket body and the movable electrode plate shaft, avoiding wear caused by direct contact, and can adapt to movable electrode plate shafts of different diameters, enhancing the product's versatility. The inner bushing can buffer vibrations during operation, reduce impact damage to the sprocket body and shaft, and extend the service life of components. The modular design of the overall structure makes assembly and maintenance more convenient. Fault diagnosis does not require disassembly of the shaft, reducing the difficulty and labor intensity of operation and maintenance, shortening fault handling time, and further improving the operating efficiency of the dust removal system. Multiple improved drive sprockets are connected via chain drive. Combined with a fault-separation design for individual sprockets, an independently controllable transmission system is constructed. When any moving electrode plate experiences a jamming fault, the faulty electrode plate can be separated from the corresponding sprocket body by disconnecting the connecting sleeve; other moving electrode plates can still operate normally under the drive motor, ensuring the continuous operation of the dust removal system and avoiding production interruptions. When a sprocket is worn or damaged, it can be disassembled and replaced individually without disassembling the entire assembly, reducing maintenance difficulty and costs; it also reduces unplanned downtime, lowering equipment repair costs and workload. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a movable electrode plate drive sprocket provided in an embodiment of this application; Figure 2 This is a schematic diagram of the connecting sleeve used in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a movable electrode plate drive assembly used in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the movable electrode plate driving sprocket used in another embodiment of this application.

[0019] Explanation of reference numerals in the attached figures: 1. Sprocket body; 11. Limiting ring groove; 2. Inner liner; 21. Limiting protrusion ring; 3. Connecting sleeve; 31. Sleeve body; 311. Keyway; 32. Connecting plate; 4. Connecting components; 41. Bolts; 42. Nuts; 5. Drive motor. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0023] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] Please refer to the following: Figures 1 to 4The movable electrode plate drive sprocket provided in this application will now be described. The movable electrode plate drive sprocket includes a sprocket body 1, an inner bushing 2, and a connecting sleeve 3; the inner bushing 2 is inserted into the inner ring of the sprocket body 1, and the inner ring of the inner bushing 2 is in contact with the shaft of the movable electrode plate shaft; the first end of the connecting sleeve 3 is connected to the sprocket body 1, and the second end is connected to the end key of the movable electrode plate shaft.

[0025] It should be noted that the connecting sleeve 3 forms a rigid transmission relationship with the shaft end of the moving electrode plate through a key connection. The inner bushing 2 serves as an intermediate adapter and support component, filling the gap between the sprocket body 1 and the shaft of the moving electrode plate. When the sprocket body 1 slips, the inner bushing 2 is consumed to protect the sprocket body 1, thus solving the problem of consuming the sprocket body 1 at a low cost. The sprocket body 1 obtains power through the fixed connection with the connecting sleeve 3, and then engages with the chain through double rows of chain teeth to realize the power transmission with other moving electrode plate drive sprockets, ensuring the coordinated operation of the entire transmission unit.

[0026] It should be noted that the inner bushing 2 of this application is provided with a set screw hole, and a set screw is provided in the set screw hole to fix the inner bushing 2 and the sprocket body 1.

[0027] In practice, first, the inner sleeve 2 is placed on the movable electrode shaft, then the sprocket body 1 is installed on the outer periphery of the inner sleeve 2 and fixed with set screws to ensure that the two fit together without looseness; then the second end of the connecting sleeve 3 is fixed to the end of the movable electrode shaft by key connection, and finally the first end of the connecting sleeve 3 is fixed to the sprocket body 1.

[0028] During normal operation, the drive motor 5 drives the main drive sprocket to rotate. The main drive sprocket drives the corresponding sprocket body 1 to rotate through chain meshing. The sprocket body 1 transmits torque to the connecting sleeve 3. The connecting sleeve 3 drives the movable electrode plate shaft to rotate through key connection. The drive sprocket directly drives the two sets of movable electrode plate sprockets closest to it to rotate. The other row of chain teeth of these two sets of movable electrode plate sprockets then drives the adjacent movable electrode plates to rotate, thereby driving the movable electrode plates to contact the fixed brush roller to achieve dust removal.

[0029] When the outermost two sprockets jam and refuse to move, the faulty moving plate can be disconnected by removing the two rows of chains from the sprocket body 1 of the adjacent moving plate, while the other moving plates can still operate normally. When the moving plate directly driven by the main drive sprocket jams and refuses to move, the connection between the sprocket body 1 and the connecting sleeve 3 on the faulty sprocket can be removed, making the sprocket body 1 of the faulty moving plate a free body, which can continue to rotate with the transmission chain, but will not drive the faulty moving plate to rotate, thereby disconnecting the faulty moving plate, while the other moving plates can still continue to operate normally.

[0030] Compared with existing technologies, the movable electrode plate drive sprocket provided in this embodiment constructs an independent fault resolution channel through the detachable design of the connecting sleeve 3 and the sprocket body 1. When a single movable electrode plate gets stuck, there is no need to stop the machine and disassemble the entire transmission unit. Only the connection between the connecting sleeve 3 and the sprocket body 1 needs to be disconnected, allowing the sprocket body 1 to spin freely with the chain. Other movable electrode plates can still operate normally, minimizing the scope of the fault, avoiding interruption of the dust removal system, ensuring production stability, and reducing economic losses. The addition of the inner bushing 2 not only improves the assembly accuracy of the sprocket body 1 and the movable electrode plate shaft, avoiding wear caused by direct contact, but also adapts to movable electrode plate shafts of different diameters, enhancing the product's versatility. The inner bushing 2 can buffer vibrations during operation, reducing impact damage to the sprocket body 1 and the shaft, and extending the service life of the components. The modular design of the overall structure makes assembly and maintenance more convenient. Fault diagnosis does not require disassembling the shaft, reducing the difficulty and labor intensity of operation and maintenance, shortening the fault handling time, and further improving the operating efficiency of the dust removal system.

[0031] In some embodiments, a set screw hole is provided on the sprocket body 1 along the radial direction of the inner bushing 2. A set screw is provided in the set screw hole, and the set screw is tightened against the inner bushing 2 to make the sprocket body 1 and the inner bushing 2 rotate synchronously. The set screw tightens the inner bushing 2 radially, and the radial pressure converted from the threaded locking force generates sufficient static friction between the sprocket body 1 and the inner bushing 2 to ensure synchronous rotation and guarantee the stability of torque transmission. When the moving electrode plate jams, simply loosening the set screw can release the synchronous rotation relationship between the sprocket body 1 and the inner bushing 2, simplifying the troubleshooting steps and shortening the maintenance time.

[0032] In some embodiments, see Figure 1 and Figure 2 The connecting sleeve 3 includes a sleeve body 31 and a connecting plate 32. The sleeve body 31 is sleeved on the end of the movable electrode shaft and is keyed to the end of the movable electrode shaft; the connecting plate 32 is installed on the end face of the sleeve body 31 near the sprocket body 1 and is connected to the sprocket body 1.

[0033] In practice, the sleeve 31 and the connecting plate 32 are integrally cast.

[0034] In this embodiment, the connecting sleeve 3 is divided into a combination of a sleeve body 31 and a connecting plate 32. The sleeve body 31 is specifically adapted to the end mounting of the movable pole plate shaft, and a keyed connection is used to achieve rigid transmission with the shaft, ensuring the accuracy of torque transmission. The connecting plate 32 is connected to the sprocket body 1, increasing the connection contact area, which can more evenly distribute the torque stress during the transmission process, avoid connection failure caused by local stress concentration, and improve the load-bearing capacity and service life of the overall structure.

[0035] In some embodiments, see Figure 1The connecting plate 32 is connected to the sprocket body 1 through the connecting assembly 4. The connecting plate 32 has a connecting hole, and the sprocket body 1 has a mounting hole corresponding to the connecting hole. The connecting assembly 4 includes a bolt 41 with a nut and a nut 42. The end of the bolt 41 passes through the connecting hole and the mounting hole in sequence and is screwed to the nut 42. The nut 42 and the nut cooperate to clamp the sprocket body 1 and the connecting plate 32.

[0036] In this embodiment, bolt 41 and nut 42 are connected together, providing extremely strong clamping force to tightly fix the connecting plate 32 and the sprocket body 1, forming a stable transmission system and ensuring the stability of torque transmission. When the moving electrode plate experiences jamming, simply loosening nut 42 is sufficient to separate the connecting plate 32 from the sprocket body 1, enabling rapid separation of the faulty electrode plate without damaging any components. This significantly shortens troubleshooting time and improves maintenance efficiency. The number of bolts 41 can be rationally set according to the transmission torque requirements to further distribute stress, avoid component damage caused by local overload, and extend the product's service life.

[0037] In some embodiments, see Figure 2 The width of the connecting plate 32 gradually increases from both ends towards the middle. The middle section serves as the main connection area with the sprocket body 1; the increased width allows for more space for the connecting holes and expands the contact area with the sprocket body 1, improving the stability of torque transmission. While ensuring structural strength, this design reduces material consumption of the connecting plate 32, lowering the overall weight of the product. The narrow design at both ends avoids interference with surrounding components such as the chain and inner bushing 2, ensuring smooth operation of the entire transmission system.

[0038] In some embodiments, see Figure 1 The connecting sleeve 3 has a keyway 311 along its radial direction, and a flat key is provided inside the keyway 311. The connecting sleeve 3 is keyed to the shaft end of the moving electrode plate through the flat key. The flat key connection ensures that the connecting sleeve 3 and the shaft of the moving electrode plate rotate synchronously, meeting the transmission requirement of no loss of rotation. By making the keyway 311 on the connecting sleeve 3, it avoids directly machining the keyway 311 on the sprocket body 1. If the keyway 311 is worn or damaged, only the connecting sleeve 3 needs to be replaced, without replacing the entire sprocket body 1, which greatly reduces maintenance costs and replacement difficulty.

[0039] In some embodiments, the thickness of the inner bushing 2 is 1~1.5mm. A thickness of 1~1.5mm can provide sufficient structural strength and rigidity, effectively fill the gap between the sprocket body 1 and the moving pole plate shaft, maximize the control of overall volume and weight, and ensure the flexibility and energy efficiency of transmission.

[0040] In some embodiments, see Figure 4The inner bushing 2 has a limiting protrusion 21 on its outer periphery at the end away from the connecting sleeve 3. The sprocket body 1 has a limiting ring groove 11 corresponding to the limiting protrusion 21. The limiting protrusion 21 and the limiting ring groove 11 are inserted into each other. Through the insertion and engagement of the limiting protrusion 21 and the limiting ring groove 11, the precise axial positioning of the inner bushing 2 and the sprocket body 1 is achieved, improving the structural stability.

[0041] In practice, the end of the limiting protrusion 21 away from the connecting sleeve 3 is provided with a fixing screw groove, and the limiting protrusion 21 is fixed on the moving electrode shaft by the fixing screw.

[0042] The engagement of the limiting protrusion 21 and the limiting ring groove 11 effectively restricts the axial movement of the inner bushing 2, preventing it from detaching or shifting from the inner ring of the sprocket body 1 due to vibration or torque fluctuations during normal operation. This ensures the relative position stability of the inner bushing 2 with the sprocket body 1 and the moving pole plate shaft. The positioning structure is simple and reliable, achieving axial limiting without additional fixing components. This simplifies the assembly process and avoids increased costs and interference risks associated with additional components. The limiting protrusion 21 facilitates the disassembly of the inner bushing 2; it can be easily removed from the inner ring of the sprocket body 1 by prying the protrusion, reducing maintenance difficulty.

[0043] In some embodiments, see Figure 1 The axial length of the inner bushing 2 is equal to the inner ring length of the sprocket body 1, and the inner ring surface of the inner bushing 2 is flush with the inner ring surface of the connecting sleeve 3. The equal axial length of the inner bushing 2 ensures that the inner bushing 2 can completely fill the inner ring space of the sprocket body 1, providing comprehensive and uniform support for the sprocket body 1. This guarantees the stability of the sprocket-chain meshing, reduces damage caused by meshing impact, and extends the service life of the sprocket body 1. The flush inner ring surface of the inner bushing 2 with the inner ring surface of the connecting sleeve 3 allows the moving electrode shaft to form a continuous and flat mating surface with the inner bushing 2 and the connecting sleeve 3. This ensures smooth shaft rotation, reduces wear between the shaft and the inner bushing 2 and the connecting sleeve 3, extends the service life of the moving electrode shaft, reduces assembly difficulty, facilitates the insertion and positioning of the moving electrode shaft, and improves assembly efficiency.

[0044] Based on the same inventive concept, see [reference] Figure 3 This application also provides a movable electrode plate drive assembly, which includes a drive motor 5, multiple movable electrode plates, and multiple movable electrode plate drive sprockets as described in any of the above embodiments. One of the movable electrode plates is connected to the output end of the drive motor 5, and each movable electrode plate is rotatably provided with a movable electrode plate shaft; the movable electrode plate drive sprockets are mounted on the corresponding movable electrode plate shafts, and the multiple movable electrode plate drive sprockets are connected by a chain for transmission.

[0045] Compared with existing technologies, the movable electrode plate drive assembly provided in this embodiment constructs an independent fault resolution channel through the detachable design of the connecting sleeve 3 and the sprocket body 1. When a single movable electrode plate jams, there is no need to stop the machine and disassemble the entire transmission unit. Only the connection between the connecting sleeve 3 and the sprocket body 1 needs to be disconnected, allowing the sprocket body 1 to rotate freely with the chain. Other movable electrode plates can still operate normally, minimizing the scope of the fault, avoiding interruption of the dust removal system, ensuring production stability, and reducing economic losses. The addition of the inner bushing 2 not only improves the assembly accuracy of the sprocket body 1 and the movable electrode plate shaft, avoiding wear caused by direct contact, but also adapts to movable electrode plate shafts with different shaft diameters, enhancing the product's versatility. The inner bushing 2 can buffer vibrations during operation, reduce impact damage to the sprocket body 1 and the shaft, and extend the service life of the components. The modular design of the overall structure makes assembly and maintenance more convenient. Fault diagnosis does not require disassembling the shaft, reducing the difficulty and labor intensity of operation and maintenance, shortening the fault handling time, and further improving the operating efficiency of the dust removal system. Multiple improved drive sprockets are connected via chain drive. Combined with a fault-separation design for individual sprockets, an independently controllable transmission system is constructed. When any moving electrode plate experiences a jamming fault, the faulty electrode plate can be separated from the corresponding sprocket body 1 by disconnecting the connecting sleeve 3 from the sprocket body 1. Other moving electrode plates can still operate normally under the drive of the drive motor 5, ensuring the continuous operation of the dust removal system and avoiding production interruption losses. When a sprocket is worn or damaged, it can be disassembled and replaced individually without disassembling the entire assembly, reducing maintenance difficulty and costs; reducing unplanned downtime, and lowering equipment repair costs and maintenance workload.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A movable electrode plate drive sprocket, characterized in that, include: Sprocket body (1); Inner bushing (2), inserted into the inner ring of the sprocket body (1), the inner ring of the inner bushing (2) fitting against the shaft of the movable pole plate shaft; and The connecting sleeve (3) has its first end connected to the sprocket body (1) and its second end connected to the key at the end of the movable electrode plate shaft.

2. The movable electrode plate drive sprocket as described in claim 1, characterized in that, The sprocket body (1) has a set screw hole along the radial direction of the inner bushing (2). The set screw hole contains a set screw, which is pressed against the inner bushing (2) so that the sprocket body (1) and the inner bushing (2) rotate synchronously.

3. The movable electrode plate drive sprocket as described in claim 1, characterized in that, The connecting sleeve (3) includes: A sleeve (31) is fitted onto the end of the movable electrode shaft and is keyed to the end of the movable electrode shaft; and A connecting plate (32) is installed on the end face of the sleeve (31) near the sprocket body (1), and the connecting plate (32) is connected to the sprocket body (1).

4. The movable electrode plate drive sprocket as described in claim 3, characterized in that, The connecting plate (32) is connected to the sprocket body (1) through the connecting assembly (4). The connecting plate (32) has a connecting hole, and the sprocket body (1) has a mounting hole corresponding to the connecting hole. The connecting assembly (4) includes a bolt (41) with a nut and a nut (42). The end of the bolt (41) passes through the connecting hole and the mounting hole in sequence and is screwed to the nut (42). The nut (42) cooperates with the nut to clamp the sprocket body (1) and the connecting plate (32).

5. The movable electrode plate drive sprocket as described in claim 4, characterized in that, The width of the connecting plate (32) gradually increases from both ends toward the middle.

6. The movable electrode plate drive sprocket as described in claim 1, characterized in that, The connecting sleeve (3) has a keyway (311) along its radial direction. A flat key is provided in the keyway (311). The connecting sleeve (3) is connected to the shaft end of the movable electrode plate by means of the flat key.

7. The movable electrode plate drive sprocket as described in claim 1, characterized in that, The thickness of the inner liner (2) is 1~1.5mm.

8. The movable electrode plate drive sprocket as described in claim 1, characterized in that, The inner liner (2) has a limiting protrusion (21) on its outer periphery at one end away from the connecting sleeve (3). The sprocket body (1) has a limiting ring groove (11) corresponding to the limiting protrusion (21). The limiting protrusion (21) and the limiting ring groove (11) are inserted into each other.

9. The movable electrode plate drive sprocket as described in claim 1, characterized in that, The axial length of the inner bushing (2) is equal to the inner ring length of the sprocket body (1), and the inner ring surface of the inner bushing (2) is flush with the inner ring surface of the connecting sleeve (3).

10. A movable electrode plate drive assembly, characterized in that, include: Drive motor (5); Multiple movable electrode plates, one of which is connected to the output end of the drive motor (5), and each movable electrode plate is rotatably provided with a movable electrode plate shaft; as well as Multiple movable electrode plate drive sprockets as described in any one of claims 1 to 9 are mounted on the corresponding movable electrode plate shaft, and the multiple movable electrode plate drive sprockets are connected by a chain for transmission.

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