Rice dust removal pipeline

Abstract

The utility model belongs to the technical field of rice dust removal, and discloses a rice dust removal pipeline which comprises two dust suction assemblies used for sucking away dust in rice, dust sweeping mechanisms used for cleaning dust on the pipe wall are arranged in the two dust suction assemblies correspondingly, and a butt joint assembly used for connecting the two dust suction assemblies is arranged between the two dust suction assemblies. A driving mechanism used for driving the two dust sweeping mechanisms to operate is arranged at the upper end of the butt joint assembly, the two dust suction assemblies each comprise a dust suction pipeline, and first butt joint flange rings are fixedly connected to the positions, close to the two ends, of the outer sides of the two dust suction pipelines. The interior of the pipeline is kept clean through the dust sweeping mechanism, the two dust collection assemblies are connected through the butt joint assembly, smooth operation of the dust collection system is ensured, and the driving mechanism provides power for the dust sweeping mechanism through the driving motor and drives a spiral scraper in the dust sweeping mechanism to conduct cleaning.

Description

Technical Field

[0001] This application relates to the field of rice dust removal technology, and more specifically, to a rice dust removal pipeline. Background Technology

[0002] Rice dust collection pipelines are specially designed dust collection systems to effectively remove dust and impurities from the air during rice processing. Their main function is to suck in and collect particulate matter such as dust and rice flour generated in the rice mill through pipelines, so as to maintain a clean production environment and reduce the impact of dust on equipment and the working environment. Dust collection pipelines are generally composed of components such as pipes, fans, and dust collectors. The fans provide airflow to suck the dust into the dust collector, where it is filtered clean by filter cartridges or other filtration devices. Dust collection systems can improve production efficiency, protect worker health, extend equipment life, and meet environmental protection requirements.

[0003] Regarding the aforementioned technologies, the inventors believe that traditional rice dust removal pipelines have certain shortcomings in the existing technology, mainly in the lack of a self-cleaning function. During rice processing, the dust removal system uses a fan to suck rice ash and dust into the pipeline and filter them out. However, in high humidity environments, rice ash extracted from the rice easily accumulates on the inner wall of the pipeline. This rice ash adheres to the inner wall of the pipeline, forming a dust layer. As the usage time increases, the dust accumulation problem gradually intensifies. Due to the lack of an effective self-cleaning mechanism, this dust can block the pipeline, leading to poor ventilation and affecting the dust removal effect. Dust accumulation may also increase the burden on the fan and even cause equipment failure. In addition, prolonged dust accumulation in the pipeline may cause secondary pollution, polluting air quality and the production environment. As the dust layer continues to thicken, the dust suction efficiency of the pipeline will decrease significantly, ultimately affecting the working effect of the entire dust removal system, resulting in decreased production efficiency and increased maintenance costs. Utility Model Content

[0004] To address the aforementioned issues, this application provides a rice dust removal pipeline. This solves the problem in existing rice processing systems where a fan draws rice ash and dust into the pipeline and filters them out. However, in high-humidity environments, rice ash extracted from the rice easily accumulates on the inner wall of the pipeline, forming a dust layer. This dust accumulation worsens over time. Due to the lack of an effective self-cleaning mechanism, this dust can clog the pipeline, hindering ventilation and affecting dust removal efficiency. Dust accumulation can also increase the burden on the fan, potentially causing equipment malfunctions. Furthermore, prolonged dust accumulation can lead to secondary pollution, contaminating air quality and the production environment. As the dust layer thickens, the pipeline's suction efficiency drops significantly, ultimately impacting the overall dust removal system's performance, resulting in decreased production efficiency and increased maintenance costs.

[0005] The rice dust removal pipeline provided in this application adopts the following technical solution:

[0006] A rice dust removal pipeline, including

[0007] Two vacuuming components are used to remove dust from rice. Each vacuuming component is equipped with a dust cleaning mechanism to clean the dust on the pipe wall. A docking component is provided between the two vacuuming components to connect them.

[0008] The upper end of the docking assembly is provided with a drive mechanism for driving the two dust cleaning mechanisms to operate. Both dust collection components include dust collection pipes, and the outer sides of the two dust collection pipes are fixedly connected with first docking flange rings near both ends.

[0009] The docking assembly includes a docking pipe. The outer sides of the dust extraction pipe are fixedly connected to two second docking flange rings at both ends. A sleeve hole is opened through the upper part of the inside of the docking pipe.

[0010] Furthermore, the two first mating flange rings that are close to each other are fixedly connected to the two second mating flange rings by bolts. The drive mechanism includes two vertical plates, which are fixedly connected to the upper part of the mating pipe at both ends. A first support plate is fixedly connected to the upper part of the two vertical plates. A drive motor is fixedly connected to the center of the upper part of the first support plate. The output end of the drive motor passes through the upper part of the first support plate and extends to the lower part of the first support plate. A synchronization mechanism is provided at the lower end of the drive motor. A magnetic coupling transmission mechanism is provided between the drive motor and the synchronization mechanism to transmit the kinetic energy of the drive motor and drive the synchronization mechanism to operate.

[0011] Furthermore, the dust cleaning mechanism includes two mounting plates, which are fixedly connected to the inside of the dust suction pipe at both ends. Both mounting plates have ventilation holes through them at both ends, and a first bearing is fixedly fitted at the center of each ventilation hole.

[0012] Furthermore, the inner rings of the two first bearings are fixedly fitted with rotating shafts, and multiple reinforcing rods are fixedly connected to the outer side of the rotating shafts in a spiral arrangement. One end of each reinforcing rod is fixedly connected to a spiral positioning plate, and a spiral scraper is fixedly connected to the outer side of the spiral positioning plate. The outer side of the spiral scraper is in contact with the inner wall of the dust collection pipe.

[0013] Furthermore, the synchronization mechanism includes a second support plate and two transmission bevel gears. The second support plate is fixedly connected to the upper part of the docking pipe. The two transmission bevel gears are respectively fixedly connected to the two rotating shafts at their close ends. A second bearing is fixedly sleeved at the center of the second support plate. A transmission seat is fixedly sleeved on the inner ring of the second bearing. A drive bevel gear is fixedly connected to the lower end of the transmission seat. The drive bevel gear and the two transmission bevel gears are engaged in gear meshing transmission.

[0014] Furthermore, the magnetic coupling transmission mechanism includes an outer sealing tube, a docking plate, and a transmission rod. The outer sealing tube is fixedly sleeved inside the sleeve hole, the docking plate is fixedly connected to the lower output end of the drive motor, and the transmission rod is fixedly connected to the upper center of the transmission seat. A sealing ring is fixedly sleeved inside the lower part of the outer sealing tube, and an inner sealing tube is fixedly sleeved on the inner wall of the sealing ring.

[0015] Furthermore, a drive coupling sleeve is fixedly connected to the lower end of the docking plate. The drive coupling sleeve is rotatably sleeved inside the outer sealing tube and outside the inner sealing tube. Multiple drive permanent magnets are fixedly embedded in a ring arrangement inside the drive coupling sleeve. A transmission coupling rod is fixedly connected to the upper end of the transmission rod. The transmission coupling rod is rotatably sleeved inside the inner sealing tube. Multiple transmission permanent magnets are fixedly embedded in a ring arrangement outside the transmission coupling rod.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] (1) The rice dust removal pipeline of this application efficiently removes dust from rice through a dust collection component and a dust cleaning mechanism, and keeps the inside of the pipeline clean through the dust cleaning mechanism. The two dust collection components are connected by a docking component to ensure the smooth operation of the dust collection system. The drive mechanism provides power to the dust cleaning mechanism through a drive motor, and drives the spiral scraper in the dust cleaning mechanism to clean.

[0018] (2) The synchronization mechanism ensures that the dust cleaning mechanisms in the two dust collection components work synchronously through bevel gear transmission, avoiding pipe blockage and improving system efficiency. The magnetic coupling transmission mechanism reduces mechanical wear and improves system stability and reliability through non-contact magnetic transmission. This design effectively improves rice dust removal efficiency, extends equipment life, and reduces maintenance costs. It is an efficient and reliable dust removal system. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of a rice dust removal pipeline;

[0020] Figure 2 A three-dimensional disassembled structural diagram of a rice dust removal pipeline;

[0021] Figure 3 A three-dimensional disassembled structural diagram of a dust removal mechanism for rice dust removal pipelines;

[0022] Figure 4 A three-dimensional structural diagram of a rice dust removal pipeline connection component;

[0023] Figure 5 A three-dimensional structural diagram of a rice dust removal pipeline drive mechanism;

[0024] Figure 6A three-dimensional structural diagram of a rice dust removal pipeline synchronization mechanism;

[0025] Figure 7 A three-dimensional disassembled structural diagram of a magnetic coupling transmission mechanism for rice dust removal pipelines;

[0026] Figure 8 A three-dimensional structural diagram of a sealing ring for a rice dust removal pipeline;

[0027] Figure 9 This is a three-dimensional structural diagram of a permanent magnet driven by a rice dust removal pipeline.

[0028] Explanation of the labels in the diagram:

[0029] 1. Dust collection assembly; 101. Dust collection pipe; 102. First docking flange ring; 2. Docking assembly; 201. Docking pipe; 202. Second docking flange ring; 203. Sleeve hole; 3. Drive mechanism; 301. Vertical plate; 302. First support plate; 303. Drive motor; 4. Dust cleaning mechanism; 401. Mounting plate; 402. Vent hole; 403. First bearing; 404. Rotating shaft; 405. Reinforcing rod; 406. Spiral positioning plate; 407. Spiral scraper; 5. Synchronization mechanism; 501. Second support plate; 502. Transmission bevel gear; 503. Second bearing; 504. Transmission seat; 505. Drive bevel gear; 6. Magnetic coupling transmission mechanism; 601. Outer sealing tube; 602. Connecting plate; 603. Transmission rod; 604. Sealing ring; 605. Inner sealing tube; 606. Drive coupling sleeve; 607. Drive permanent magnet; 608. Transmission coupling rod; 609. Transmission permanent magnet. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. 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.

[0031] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Example 1:

[0034] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0035] This application discloses a rice dust removal pipeline. Please refer to the embodiments therein. Figures 1-3The system includes two suction components 1 for removing dust from rice. Each suction component 1 has a dust cleaning mechanism 4 inside for cleaning dust from the pipe walls. A docking component 2 connects the two suction components 1. A drive mechanism 3 is located at the upper end of the docking component 2 to drive the two dust cleaning mechanisms 4. Each suction component 1 includes a suction pipe 101. First docking flange rings 102 are fixedly connected to both ends of the outer side of each suction pipe 101. The docking component 2 includes a docking pipe 201. Second docking flange rings 202 are fixedly connected to both ends of the outer side of the suction pipe 101. A sleeve hole 203 is provided through the upper part of the inner side of the docking pipe 201. The suction components 1 are responsible for sucking away dust generated during rice processing through the suction pipe 101. Each suction component 1 has a dust cleaning mechanism 4 inside to keep the inside of the pipe clean. The dust cleaning mechanism 4 uses a spiral scraper 407 set on the inner wall of the suction pipe 101 to efficiently remove dust from the inside of the suction pipe 101. To prevent dust accumulation on the pipe walls and ensure effective dust removal, the spiral scraper 407 is tightly fitted to the inner wall of the suction pipe 101, ensuring pipe cleanliness and improving system efficiency and stability. This rice dust removal pipeline efficiently extracts dust from the rice through the suction assembly 1 and dust cleaning mechanism 4, and maintains the cleanliness of the pipe interior through the dust cleaning mechanism 4. The two suction assemblies 1 are connected by a docking assembly 2 to ensure smooth operation of the suction system. The drive mechanism 3 provides power to the dust cleaning mechanism 4 through the drive motor 303, driving the spiral scraper 407 inside the dust cleaning mechanism 4 for cleaning. The synchronization mechanism 5 ensures that the dust cleaning mechanisms 4 in the two suction assemblies 1 work synchronously through bevel gear transmission, avoiding pipe blockage and improving system efficiency. The magnetic coupling transmission mechanism 6 reduces mechanical wear and improves system stability and reliability through non-contact magnetic transmission. This design effectively improves rice dust removal efficiency, extends equipment life, and reduces maintenance costs, making it a highly efficient and reliable dust removal system.

[0036] Example 2:

[0037] This application discloses a rice dust removal pipeline. Please refer to the embodiments therein. Figure 5Two first mating flange rings 102 and two second mating flange rings 202 are fixedly connected by bolts. The drive mechanism 3 includes two vertical plates 301, which are fixedly connected to the upper part of the mating pipe 201 near both ends. A first support plate 302 is fixedly connected to the upper end of the two vertical plates 301. A drive motor 303 is fixedly connected to the center of the upper end of the first support plate 302. The output end of the drive motor 303 passes through the upper end of the first support plate 302 and extends to the lower end of the first support plate 302. A synchronization mechanism 5 is provided at the lower end of the drive motor 303. A space is provided between the drive motor 303 and the synchronization mechanism 5 for transmitting the kinetic energy of the drive motor 303 and driving... The magnetic coupling transmission mechanism 6 operates through the dynamic synchronization mechanism 5. The docking component 2 connects two dust collection components 1, which ensures a seamless connection between the two dust collection pipes 101 and guarantees smooth airflow. The drive mechanism 3 at the upper end of the docking component 2 includes a drive motor 303 and a synchronization mechanism 5. The drive motor 303 transmits power to the synchronization mechanism 5 through the magnetic coupling transmission mechanism 6. The drive motor 303 provides power to drive the spiral scraper 407 in the dust cleaning mechanism 4 to operate and remove dust from the pipes. The magnetic coupling transmission mechanism 6 between the drive motor 303 and the synchronization mechanism 5 transmits power through magnetic force, avoiding mechanical wear and improving the service life and efficiency of the system.

[0038] Example 3:

[0039] This application discloses a rice dust removal pipeline. Please refer to the embodiments therein. Figure 3 The dust cleaning mechanism 4 includes two mounting plates 401, which are fixedly connected to the inside of the dust suction pipe 101 at both ends. Ventilation holes 402 are provided through the inside of both mounting plates 401 at both ends. A first bearing 403 is fixedly fitted at the center of each ventilation hole 402. A rotating shaft 404 is fixedly fitted inside the inner ring of each of the two first bearings 403. Multiple reinforcing rods 405 are fixedly connected to the outer side of the rotating shaft 404 in a spiral arrangement. A spiral positioning plate 406 is fixedly connected to one end of each reinforcing rod 405. The outer side of the spiral positioning plate 406 is fixedly... A spiral scraper 407 is fixedly connected, and the outer side of the spiral scraper 407 is in close contact with the inner wall of the suction pipe 101. The dust cleaning mechanism 4 consists of a mounting plate 401, a rotating shaft 404, a reinforcing rod 405, and a spiral scraper 407. The rotating shaft 404 drives the outer spiral scraper 407 to rotate along the inner wall of the suction pipe 101, thereby removing the dust accumulated on the pipe wall. By adhering to the inner wall of the suction pipe 101, the spiral scraper 407 ensures effective removal of the attached dust, prevents dust accumulation from obstructing airflow, and thus improves the efficiency of the overall dust collection system.

[0040] Example 3:

[0041] This application discloses a rice dust removal pipeline. Please refer to the embodiments therein. Figure 6The synchronization mechanism 5 includes a second support plate 501 and two transmission bevel gears 502. The second support plate 501 is fixedly connected to the upper part of the docking pipe 201. The two transmission bevel gears 502 are respectively fixedly connected to the two rotating shafts 404 at their close ends. A second bearing 503 is fixedly sleeved at the center of the second support plate 501. A transmission seat 504 is fixedly sleeved on the inner ring of the second bearing 503. A drive bevel gear 505 is fixedly connected to the lower end of the transmission seat 504. The drive bevel gear 505 and the two transmission bevel gears 502 are meshed and driven by gears. The synchronization mechanism 5, including the transmission bevel gears 502 and the drive bevel gears 505, is responsible for transmitting the power provided by the drive motor 303 to the two rotating shafts 404. The drive bevel gears 505 and the transmission bevel gears 502 are meshed and driven by gears, so that the two rotating shafts 404 operate synchronously, driving the spiral scraper 407 in the dust cleaning mechanism 4 to work effectively. The design of the synchronization mechanism 5 ensures that the dust cleaning mechanisms 4 in the two dust collection components 1 can clean synchronously, improving the overall cleaning efficiency and system stability.

[0042] Example 4:

[0043] This application discloses a rice dust removal pipeline. Please refer to the embodiments therein. Figures 7-9 The magnetic coupling transmission mechanism 6 includes an outer sealing tube 601, a docking plate 602, and a transmission rod 603. The outer sealing tube 601 is fixedly sleeved inside the sleeve hole 203. The docking plate 602 is fixedly connected to the lower output end of the drive motor 303. The transmission rod 603 is fixedly connected to the upper center of the transmission seat 504. A sealing ring 604 is fixedly sleeved inside the lower part of the outer sealing tube 601. An inner sealing tube 605 is fixedly sleeved on the inner wall of the sealing ring 604. A drive coupling sleeve 606 is fixedly connected to the lower end of the docking plate 602. The drive coupling sleeve 606 is rotatably sleeved inside the outer sealing tube 601 and outside the inner sealing tube 605. Multiple drive permanent magnets 607 are fixedly embedded in a ring arrangement inside the drive coupling sleeve 606. A transmission coupling rod 608 is fixedly connected to the upper end of the transmission rod 603. The transmission coupling rod 608 is rotatably sleeved inside the inner sealing tube 605. Multiple transmission permanent magnets 609 are fixedly embedded in a ring on the outer side of the transmission coupling rod 608. The magnetic coupling transmission mechanism 6 achieves contactless transmission through components such as the outer sealing tube 601, the inner sealing tube 605, and the drive coupling sleeve 606. The magnetic coupling transmission mechanism 6 uses magnetic force to transmit the power generated by the drive motor 303 to the synchronization mechanism 5, avoiding wear caused by mechanical contact and extending the service life of the equipment. The transmission rod 603 and the transmission coupling rod 608 are magnetically coupled to ensure stable power transmission, reduce energy loss of the system, and improve transmission efficiency.

[0044] The implementation principle of one embodiment of this application is as follows: The dust collection component 1 is responsible for sucking away the dust generated during rice processing through the dust collection pipe 101. Each dust collection component 1 is equipped with a dust cleaning mechanism 4 to keep the inside of the pipe clean. The dust cleaning mechanism 4 efficiently removes dust from the inner wall of the dust collection pipe 101 through a spiral scraper 407 installed on the inner wall, preventing dust accumulation from affecting the suction effect. The outer side of the spiral scraper 407 is tightly fitted to the inner wall of the dust collection pipe 101 to ensure the cleanliness of the pipe and improve the system's operating efficiency and stability. The docking component 2 connects two dust collection components 1, and its function is to ensure that the two dust collection components... The seamless connection between pipes 101 ensures smooth airflow. The drive mechanism 3 at the upper end of the docking assembly 2 includes a drive motor 303 and a synchronization mechanism 5. The drive motor 303 transmits power to the synchronization mechanism 5 through a magnetic coupling transmission mechanism 6. The drive motor 303 provides power to drive the spiral scraper 407 in the dust cleaning mechanism 4 to remove dust from the pipes. The magnetic coupling transmission mechanism 6 between the drive motor 303 and the synchronization mechanism 5 transmits power magnetically, avoiding mechanical wear and improving the service life and efficiency of the system. The dust cleaning mechanism 4 consists of a mounting plate 401, a rotating shaft 404, a reinforcing rod 405, and a spiral scraper 407. 404 drives the outer spiral scraper 407 to rotate along the inner wall of the suction pipe 101, which removes the dust accumulated on the pipe wall. The spiral scraper 407, by adhering to the inner wall of the suction pipe 101, ensures effective removal of the attached dust, preventing dust accumulation from obstructing airflow, thereby improving the efficiency of the overall suction system. The synchronization mechanism 5 includes a transmission bevel gear 502 and a drive bevel gear 505, which are responsible for transmitting the power provided by the drive motor 303 to the two rotating shafts 404. The drive bevel gear 505 and the transmission bevel gear 502 are driven by gear meshing, so that the two rotating shafts 404 rotate synchronously, driving the spiral scraper in the dust cleaning mechanism 4. With plate 407 working effectively, the design of the synchronization mechanism 5 ensures that the dust cleaning mechanisms 4 in the two dust collection components 1 can clean synchronously, improving the overall cleaning efficiency and system stability. The magnetic coupling transmission mechanism 6 achieves contactless transmission through components such as the outer sealing tube 601, the inner sealing tube 605, and the drive coupling sleeve 606. The magnetic coupling transmission mechanism 6 uses magnetic force to transmit the power generated by the drive motor 303 to the synchronization mechanism 5, avoiding wear caused by mechanical contact and extending the service life of the equipment. The transmission rod 603 and the transmission coupling rod 608 are magnetically coupled to ensure stable power transmission, reduce system energy loss, and improve transmission efficiency.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rice dust removal pipeline, characterized in that: include Two vacuuming components for removing dust from rice, each of the two vacuuming components is equipped with a dust cleaning mechanism for cleaning dust from the pipe wall, and a docking component for connecting the two vacuuming components is provided between the two vacuuming components. The upper end of the docking assembly is provided with a drive mechanism for driving the two dust cleaning mechanisms to operate. Both of the dust collection assemblies include dust collection pipes, and the outer sides of the two dust collection pipes are fixedly connected with first docking flange rings near both ends. The docking assembly includes a docking pipe, and a second docking flange ring is fixedly connected to both ends of the outer side of the dust suction pipe. A sleeve hole is opened through the upper part of the inner side of the docking pipe.

2. The rice dust removal pipeline according to claim 1, characterized in that: The two first mating flange rings and two second mating flange rings that are close to each other are fixedly connected by bolts. The driving mechanism includes two vertical plates, which are respectively fixedly connected to the upper part of the mating pipe near both ends. A first support plate is fixedly connected to the upper end of the two vertical plates. A drive motor is fixedly connected to the center of the upper end of the first support plate. The output end of the drive motor passes through the upper end of the first support plate and extends to the lower end of the first support plate. A synchronization mechanism is provided at the lower end of the drive motor. A magnetic coupling transmission mechanism is provided between the drive motor and the synchronization mechanism to transmit the kinetic energy of the drive motor and drive the synchronization mechanism to operate.

3. The rice dust removal pipeline according to claim 1, characterized in that: The dust cleaning mechanism includes two mounting plates, which are fixedly connected to the inside of the dust suction pipe at both ends. Both mounting plates have ventilation holes through them at both ends, and a first bearing is fixedly fitted at the center of each ventilation hole.

4. The rice dust removal pipeline according to claim 3, characterized in that: Two first bearing inner rings are fixedly fitted with a rotating shaft. Multiple reinforcing rods are fixedly connected to the outer side of the rotating shaft in a spiral arrangement. A spiral positioning plate is fixedly connected to one end of each of the multiple reinforcing rods. A spiral scraper is fixedly connected to the outer side of the spiral positioning plate. The outer side of the spiral scraper is in contact with the inner wall of the dust collection pipe.

5. The rice dust removal pipeline according to claim 2, characterized in that: The synchronization mechanism includes a second support plate and two transmission bevel gears. The second support plate is fixedly connected to the upper part of the docking pipe. The two transmission bevel gears are respectively fixedly connected to the two rotating shafts at their close ends. A second bearing is fixedly sleeved at the center of the second support plate. A transmission seat is fixedly sleeved on the inner ring of the second bearing. A drive bevel gear is fixedly connected to the lower end of the transmission seat. The drive bevel gear and the two transmission bevel gears are engaged by gear meshing.

6. The rice dust removal pipeline according to claim 5, characterized in that: The magnetic coupling transmission mechanism includes an outer sealing tube, a docking plate, and a transmission rod. The outer sealing tube is fixedly sleeved inside the sleeve hole. The docking plate is fixedly connected to the lower output end of the drive motor. The transmission rod is fixedly connected to the upper center of the transmission seat. A sealing ring is fixedly sleeved inside the lower part of the outer sealing tube. An inner sealing tube is fixedly sleeved on the inner wall of the sealing ring.

7. The rice dust removal pipeline according to claim 6, characterized in that: The lower end of the docking plate is fixedly connected to a drive coupling sleeve, which is rotatably sleeved inside the outer sealing tube and outside the inner sealing tube. Multiple drive permanent magnets are fixedly embedded in a ring arrangement inside the drive coupling sleeve. The upper end of the transmission rod is fixedly connected to a transmission coupling rod, which is rotatably sleeved inside the inner sealing tube. Multiple transmission permanent magnets are fixedly embedded in a ring arrangement outside the transmission coupling rod.

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