Plant delivery device and agricultural vehicle

Abstract

This invention discloses a plant conveying device, including a frame, a conveyor belt arranged around the frame, and a power mechanism for driving the conveyor belt to rotate. The conveyor belt has a plurality of mesh openings for dislodging plant roots and soil. It also includes a vibration assembly disposed between the carrying section and the return section of the conveyor belt. The vibration assembly includes a rolling shaft driven to rotate on the frame by the power mechanism, and at least one protrusion disposed circumferentially on the rolling shaft. The protrusion is configured such that when the rolling shaft rotates, the protrusion periodically lifts the carrying section, causing the carrying section to vibrate up and down along the lifting direction. An agricultural vehicle using the above-described plant conveying device is also mentioned. The objective of this invention is to provide a plant conveying device that solves the problem of excessive load on the drum screen and inadequate cleaning of plant roots and soil, thereby reducing the load on the drum screen.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to plant conveying devices applied to agricultural vehicles. Background Technology

[0002] In post-harvest processing in agriculture, plant conveying devices are widely used to transport soil and roots attached to crops to screening equipment. In existing technologies, such devices typically consist of a frame, a conveyor belt surrounding the frame, and a drive mechanism. They rely primarily on a rotary drum screen at the rear end to clean the soil and roots, resulting in a high load on the drum screen, reduced screening efficiency, and insufficient cleaning of the plants, which affects subsequent processing. Furthermore, the high load on the drum screen easily leads to clogging. To address these issues, existing technologies urgently need improvement. Summary of the Invention

[0003] The purpose of this invention is to provide a plant conveying device that solves the problems of excessive load on the drum screen and inadequate cleaning of plant roots and soil, thereby reducing the load on the drum screen.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a plant conveying device, including a frame, a conveyor belt arranged around the frame, and a power mechanism for driving the conveyor belt to rotate. The conveyor belt has a number of mesh holes for the roots of plants and soil to fall off, and also includes a vibration component arranged between the carrying section and the return section of the conveyor belt. The vibration assembly includes a rolling shaft that is rotatably mounted on a frame and driven by a power mechanism, and at least one protrusion located circumferentially on the rolling shaft. The protrusion is configured such that when the rolling shaft rotates, the protrusion periodically lifts the bearing section, causing the bearing section to vibrate up and down along the lifting direction.

[0005] After adopting the above technical solution, the present invention has the following advantages: The plant conveying device includes a frame, providing an overall support structure. A conveyor belt arranged around the plant carries and transports the plant, and its mesh allows roots and soil to fall off naturally during the conveying process. A power mechanism drives the conveyor belt to rotate. Based on this, the present application adds a vibration component located between the carrying section and the return section. The vibration component includes a rolling shaft with protrusions on it. When the rolling shaft rotates, the protrusions periodically lift the carrying section, causing it to vibrate up and down. This periodic lifting action based on the rotation of the rolling shaft directly acts on the plant in the carrying section, accelerating the shedding of plant roots and soil, thus achieving preliminary cleaning during the conveying stage. This reduces the burden on the rear drum screen, effectively lowers the workload of the drum screen, and optimizes the cleaning effect on the plant.

[0006] Furthermore, this application incorporates a vibration component between the carrying section and the return section of the conveyor belt, causing the carrying section to vibrate. Compared to existing technologies that require the entire conveyor belt to vibrate, this method is simpler in structure, easier to implement, and less expensive.

[0007] Furthermore, the vibration mechanism also includes at least one vibrating cylinder, which is sleeved on the outer periphery of the rolling shaft and rotates with the rolling shaft, with a protrusion on the outer peripheral wall of the vibrating cylinder.

[0008] Furthermore, there are three protrusions, which are evenly distributed along the axial direction of the rolling shaft.

[0009] By adopting the aforementioned technical solution, the number of jacking points is increased, ensuring multiple contact points during the rotation of the rolling shaft. This improves the vibration frequency and continuity, preventing excessively long vibration intervals due to an insufficient number of protrusions, which would affect the efficiency of soil and root detachment. The protrusions are evenly distributed along the circumference of the rolling shaft, ensuring that the jacking action occurs at equal intervals on the circumference, providing stable and balanced vibration. This prevents local overload or uneven vibration, effectively promoting the uniform falling of plant roots and soil during transport and reducing the burden on the subsequent drum screen.

[0010] Furthermore, the power mechanism includes a drive shaft that drives the conveyor belt to rotate, and the drive shaft is connected to the rolling shaft to drive the rolling shaft to rotate.

[0011] By adopting the aforementioned technical solution, the drive shaft can directly drive the rolling shaft while driving the conveyor belt, avoiding the use of an independent drive source, simplifying the device structure, and ensuring that the operation of the vibration component is synchronized with the movement of the conveyor belt, thereby enhancing the overall coordination and reliability of the device.

[0012] Furthermore, a first sprocket is provided at one end of the drive shaft, and a second sprocket is provided at the same end of the rolling shaft. The first sprocket and the second sprocket are connected by a first chain drive.

[0013] Using the aforementioned technical solution, a first sprocket is provided at one end of the drive shaft, which allows the power output point of the drive shaft to be precisely fixed, facilitating power transmission; a second sprocket is provided at the same end of the rolling shaft, which ensures that the power receiving point of the rolling shaft corresponds to the drive shaft, achieving synchronous rotation; the first sprocket and the second sprocket are connected by a first chain drive, utilizing the flexibility of the chain to provide smooth and low-noise transmission, thereby ensuring the stable operation of the vibration component and effectively promoting the shedding of plant roots and soil.

[0014] Furthermore, the vibration mechanism includes a first bearing housing, and the other end of the rolling shaft is rotatably supported on the frame via the first bearing housing. The first bearing housing is fixed to the frame to provide rotational support for the rolling shaft.

[0015] Furthermore, the vibration mechanism also includes a second bearing housing. One end of the rolling shaft with a second sprocket is rotatably mounted on the frame via the second bearing housing. The second bearing housing is fixed to the frame and is used to provide rotational support for the rolling shaft.

[0016] By employing the aforementioned technical solution, the first and second bearing seats provide support points, compensating for the deficiencies of single-end support and reducing the shaking of the rolling shaft caused by uneven force. The use of the first and second bearing seats reduces friction and wear, ensuring smooth operation during transmission and thus improving the plant shaking efficiency.

[0017] Furthermore, at least one support shaft is provided between the conveyor belt carrying section and the return section. The support shaft is rotatably supported on the frame and is used to support the conveyor belt.

[0018] The aforementioned technical solution provides additional support points to prevent the conveyor belt from sagging or deforming due to gravity during long-distance operation, thereby maintaining the flatness of the conveyor belt. The support shaft is rotatably supported on the frame, allowing it to rotate freely with the conveyor belt, reducing frictional resistance and wear between the shaft and the belt. The support shaft supports the conveyor belt, directly maintaining its positional stability between the carrying and return sections, ensuring efficient plant loading, and supporting the periodic vibration of the vibrating components, resulting in more even dispersal of roots and soil and improving overall cleaning efficiency.

[0019] Furthermore, an agricultural vehicle is also mentioned, including a vehicle body and a drum screen installed on the vehicle body, as well as the aforementioned plant conveying device. The plant conveying device is installed on the vehicle body and located upstream of the drum screen, with the discharge end of the plant conveying device connected to the feed inlet of the drum screen.

[0020] Using the aforementioned technical solution, the plant conveying device is located upstream of the drum screen, allowing the material to undergo pretreatment via the conveying device before entering the drum screen, thus optimizing the workflow. The discharge end connects directly and seamlessly to the drum screen's inlet, preventing material from scattering or clogging during transfer and ensuring efficient and continuous transfer.

[0021] Furthermore, the plant conveying device is installed at an angle on the vehicle body, and the carrying section of the conveyor belt is configured to move from bottom to top. The conveyor belt is equipped with multiple baffles arranged at intervals perpendicular to the conveying direction to prevent the plants from sliding down during inclined conveying.

[0022] Using the aforementioned technical solution, the plant conveying device is installed at an angle on the vehicle body, facilitating the movement of plants from a lower to a higher position and adapting to the spatial layout requirements of agricultural vehicles. The carrying section of the conveyor belt is configured to move from bottom to top, defining the conveying direction as upward. To prevent plants from sliding backward under gravity, the conveyor belt is equipped with multiple baffles arranged at intervals perpendicular to the conveying direction. These baffles are horizontally positioned to form a physical barrier, directly preventing the plants from sliding down. This solves the problem of plants sliding down during inclined conveying, ensuring that the plants are stably conveyed to the drum screen. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the agricultural vehicle of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of point A in the image; Figure 3 This is a schematic diagram of the plant delivery device of the present invention; Figure 4 This is a cross-sectional schematic diagram of the plant conveying device of the present invention; Figure 5 This is a schematic diagram of the plant conveying device of the present invention (without conveyor belt); Figure 6 For the present invention Figure 5 Enlarged view of point B in the image; Figure 7 This is a schematic diagram of the structure of the baffle of the present invention.

[0024] Figure descriptions: 100, frame; 110, conveyor belt; 111, mesh; 112, carrying section; 113, return section; 114, baffle; 115, fixed end; 116, placement platform; 117, stop wall; 200, rolling shaft; 210, vibrating cylinder; 211, protrusion; 220, second sprocket; 230, first bearing seat; 240, second bearing seat; 300, drive shaft; 310, first sprocket; 320, driven shaft; 400, support shaft; 500, vehicle body; 510, drum screen; 520, plant conveying device. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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.

[0026] The terms "first," "second," etc. (if present) in the specification and claims of this invention are used to distinguish similar objects, not to describe a specific order or sequence. Even if "second" is used before a technical feature for distinction, it does not necessarily imply the presence of "first." It should be understood that in this invention, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this invention, "a plurality of" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, and Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Containing X, Y, and Z," "Containing X, Y, and Z" means that all three X, Y, and Z are included; "Containing X, Y, or Z" means that one of X, Y, and Z is included; "Containing X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are included.

[0027] The technical solution of the present invention will be described in detail below with reference to specific embodiments. The following specific embodiments may be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0028] like Figures 1 to 7 As shown, the present invention provides a plant conveying device 520, taking tiger nuts as an example in this application.

[0029] The plant conveying device 520 includes a frame 100, a conveyor belt 110 arranged around the frame 100, and a power mechanism for driving the conveyor belt 110 to rotate. The conveyor belt 110 has a number of mesh holes 111 for the roots of plants and soil to fall off. It also includes a vibration component arranged between the carrying section 112 and the return section 113 of the conveyor belt 110. The vibration assembly includes a rolling shaft 200 driven to rotate on the frame 100 by a power mechanism, and at least one protrusion 211 provided in the circumferential direction of the rolling shaft 200; The protrusion 211 is configured such that when the rolling shaft 200 rotates, the protrusion 211 periodically lifts the bearing section 112, so that the bearing section 112 can vibrate up and down along the lifting direction.

[0030] Understandably, the plant conveying device 520 includes a frame 100 providing an overall support structure, and a surrounding conveyor belt 110 for carrying and transporting plants. Mesh 111 on the belt allows roots and soil to fall off naturally during transport. A power mechanism drives the conveyor belt 110 to rotate. Based on this, this application adds a vibration assembly located between the carrying section 112 and the return section 113. The vibration assembly includes a rolling shaft 200 with protrusions 211 on it. When the rolling shaft 200 rotates, the protrusions 211 periodically lift the carrying section 112, causing it to vibrate up and down. This periodic lifting action based on the rotation of the rolling shaft 200 directly acts on the plants in the carrying section 112, accelerating the shedding of plant roots and soil. This achieves preliminary cleaning during the transport stage, reducing the burden on the rear drum screen 510, effectively lowering its workload, and optimizing the cleaning effect on the plants.

[0031] It should be noted that, in this application, by setting the vibration component between the carrying section 112 and the return section 113 of the conveyor belt 110, it generates up-and-down vibrations for the carrying section 112, without driving the entire conveyor belt 110 to vibrate synchronously. Compared with the prior art, which requires driving the entire conveyor belt 110 to vibrate, this greatly simplifies the structure and reduces the implementation difficulty and manufacturing cost.

[0032] Furthermore, compared to the segmented conveyor belt 110 in the prior art, this application adopts an integrally molded conveyor belt 110, which effectively reduces the number of connectors and components used while achieving vibration, avoids problems such as connection jamming and conveying interruption that are prone to occur in segmented structures, and improves the continuity and reliability of the conveyor belt 110 operation.

[0033] In detail, the frame 100 serves as the skeleton of the entire plant conveying device 520, providing support. The frame 100 can be made of welded or bolted metal materials. The conveyor belt 110 is configured to carry and transport plants. Optionally, in this application, the conveyor belt 110 is a metal belt driven by a chain. The power mechanism is responsible for driving the continuous movement of the conveyor belt 110.

[0034] Specifically, the power mechanism refers to the device that provides power to the entire plant conveying device 520. It can be powered by a motor directly driving the drive roller of the conveyor belt 110 via a reducer, or by a hydraulic system.

[0035] In summary, any power mechanism capable of driving the conveyor belt 110 to rotate will suffice. Since such a power mechanism is a conventional technique well-known to those skilled in the art, it will not be elaborated upon here.

[0036] The conveyor belt 110 also has several mesh openings 111 for removing plant roots and soil. The mesh openings 111 can be oval, square, or rectangular. However, it is worth noting that the size and density of the mesh openings 111 need to be adjusted according to the type of plant being treated and the degree of soil adhesion.

[0037] In addition, the plant conveying device 520 also includes a vibration assembly disposed between the carrying section 112 and the return section 113 of the conveyor belt 110. The vibration assembly is placed below the carrying section 112 to act directly on the area carrying the plants. The vibration assembly is detachably mounted on the frame 100.

[0038] Optionally, a set of vibration components is provided in this application. In other embodiments, if the mass of the crop is large or the length of the bearing section 112 is long, the number of vibration components can be increased at intervals to ensure the shaking effect.

[0039] The vibration assembly includes a rolling shaft 200 rotatably mounted on a frame 100 and driven by a power mechanism, and at least one protrusion 211 circumferentially disposed on the rolling shaft 200. The rolling shaft 200 is a cylindrical component.

[0040] In addition, the vibration mechanism also includes at least one vibration cylinder 210, which is sleeved on the outer periphery of the rolling shaft 200 and rotates with the rolling shaft 200. The protrusion 211 is provided on the outer peripheral wall of the vibration cylinder 210.

[0041] Specifically, the vibratory cylinder 210 is detachably sleeved on the outer periphery of the rolling shaft 200. Optionally, in this application, three vibratory cylinders 210 are sleeved on one rolling shaft 200. In another embodiment, the number of vibratory cylinders 210 installed can be selected according to the length of the rolling shaft 200 or its contact with the bearing section 112, making the use more flexible.

[0042] It should be noted that when multiple vibrating cylinders 210 are used on a single rolling shaft 200, the protrusions 211 of the multiple vibrating cylinders 210 should be on the same straight line.

[0043] Specifically, the protrusion 211 can be an irregularly shaped protrusion or a protrusion with a geometric shape, such as a semi-circle.

[0044] Optionally, three protrusions 211 are provided and evenly distributed along the circumference of the rolling shaft 200. The three protrusions 211 increase the number of jacking points, ensuring multiple contact points during the rotation of the rolling shaft 200, improving the vibration frequency and continuity, and preventing excessively long vibration intervals due to an insufficient number of protrusions 211, which would affect the efficiency of soil and root detachment. The even distribution of the protrusions 211 along the circumference of the rolling shaft 200 ensures that the jacking action occurs at equal intervals on the circumference, providing stable and balanced vibration, preventing local overload or uneven vibration, thereby effectively promoting the even detachment of plant roots and soil during transport, reducing the burden on the subsequent drum screen 510.

[0045] This application discloses a power mechanism for driving the conveyor belt 110 and the vibration assembly. Further, this application discloses a plant conveying device 520, wherein the power mechanism includes a drive shaft 300 that drives the conveyor belt 110 to rotate, and the drive shaft 300 is connected to a rolling shaft 200 to drive the rolling shaft 200 to rotate.

[0046] Specifically, the power mechanism includes a drive shaft 300 that drives the conveyor belt 110 to rotate, and the drive shaft 300 is connected to the rolling shaft 200 to drive the rolling shaft 200 to rotate.

[0047] The drive shaft 300 refers to the shaft directly driven by the power mechanism. The drive shaft 300 is primarily responsible for rotating the conveyor belt 110. Correspondingly, the power mechanism also includes a driven shaft 320, which is connected to the drive shaft 300 via the conveyor belt 110 and is driven by the drive shaft 300 to rotate through the conveyor belt 110, thereby driving the entire conveyor belt 110 to rotate. The drive shaft 300 can be connected to the conveyor belt 110 via transmission components (such as gears, sprockets, pulleys, etc.) to transmit power to the conveyor belt 110.

[0048] Transmission connection refers to connecting the drive shaft 300 and the rolling shaft 200 through physical components to achieve power transmission. This connection method can include, but is not limited to, various forms such as gear transmission, chain transmission, belt transmission, and coupling connection. Its core lies in ensuring the kinematic relationship between the two through the cooperation of mechanical components.

[0049] The drive shaft 300 drives the conveyor belt 110 and the rolling shaft 200 simultaneously, avoiding the use of a separate drive source, simplifying the device structure, and ensuring that the operation of the vibration component is synchronized with the movement of the conveyor belt 110, thereby enhancing the overall coordination and reliability of the device.

[0050] To elaborate, one end of the drive shaft 300 is provided with a first sprocket 310, and the same end of the rolling shaft 200 is provided with a second sprocket 220. The first sprocket 310 and the second sprocket 220 are connected by a first chain drive.

[0051] This allows the power output point of the drive shaft 300 to be precisely fixed, facilitating power transmission; a second sprocket 220 is provided at the same end as the rolling shaft 200, which ensures that the power receiving point of the rolling shaft 200 corresponds to the drive shaft 300, achieving synchronous rotation; the first sprocket 310 and the second sprocket 220 are connected by a first chain drive, utilizing the flexibility of the chain to provide smooth and low-noise transmission, thereby ensuring the stable operation of the vibration component and effectively promoting the shedding of plant roots and soil.

[0052] Specifically, the vibration mechanism includes a first bearing housing 230, and the other end of the rolling shaft 200 is rotatably supported on the frame 100 through the first bearing housing 230. The first bearing housing 230 is fixed to the frame 100 and is used to provide rotational support for the rolling shaft 200. It also includes a second bearing housing 240. One end of the rolling shaft 200, which is provided with a second sprocket 220, is rotatably mounted on the frame 100 via the second bearing housing 240. The second bearing housing 240 is fixed to the frame 100 and is used to provide rotational support for the rolling shaft 200.

[0053] The first bearing housing 230 and the second bearing housing 240 provide support points, compensating for the inadequacy of single-end support and reducing the shaking of the rolling shaft 200 caused by uneven force. The use of the first bearing housing 230 and the second bearing housing 240 reduces friction and wear, ensuring smooth operation during transmission and thus improving the shaking efficiency of the plant.

[0054] In addition, at least one support shaft 400 is provided between the carrying section 112 and the return section 113 of the conveyor belt 110. The support shaft 400 is rotatably supported on the frame 100 and is used to support the conveyor belt 110.

[0055] Optionally, this application includes two support shafts 400, which provide additional support points to prevent the conveyor belt 110 from sagging or deforming due to gravity during long-distance operation, thereby maintaining the flatness of the conveyor belt 110. The support shafts 400 are rotatably supported on the frame 100, allowing them to rotate freely with the movement of the conveyor belt 110, reducing frictional resistance and wear between them. The support shafts 400 support the conveyor belt 110, directly maintaining its stable position between the carrying section 112 and the return section 113, ensuring the conveyor belt 110 can efficiently carry plants and supporting the periodic shaking action of the vibration components, allowing roots and soil to fall more evenly and improving overall cleaning efficiency.

[0056] The support shaft 400 is a rod-shaped or cylindrical component used to provide support. Its main function is to support the conveyor belt 110 to prevent it from sagging or deforming during operation due to its own weight or the materials it carries. The support shaft 400 can be made of solid or hollow metal rod, and the material can be stainless steel or high-strength alloy steel to ensure that it has sufficient rigidity and load-bearing capacity.

[0057] This application also mentions an agricultural vehicle, including a vehicle body 500 and a drum screen 510 disposed on the vehicle body 500, and also includes the aforementioned plant conveying device 520, which is disposed on the vehicle body 500 and located upstream of the drum screen 510, with the discharge end of the plant conveying device 520 connected to the feed inlet of the drum screen 510.

[0058] The plant conveying device 520 is located upstream of the drum screen 510, allowing the material to be pre-treated by the conveying device before entering the drum screen 510, thus optimizing the workflow sequence. The discharge end is connected to the feed inlet of the drum screen 510, achieving a direct and seamless connection, preventing material from scattering or clogging during transfer, and ensuring efficient and continuous transfer.

[0059] Furthermore, the plant conveying device 520 is installed at an angle on the vehicle body 500, the carrying section 112 of the conveyor belt 110 is configured to move from bottom to top, and the conveyor belt 110 is provided with a plurality of baffles 114 arranged at intervals perpendicular to the conveying direction to prevent the plants from sliding down during the inclined conveying.

[0060] The plant conveying device 520 is installed at an angle on the vehicle body 500, facilitating the movement of plants from a lower to a higher position and adapting to the spatial layout requirements of agricultural vehicles. The carrying section 112 of the conveyor belt 110 is configured to move from bottom to top, defining the conveying direction as upward. To prevent plants from sliding backward under gravity, the conveyor belt 110 is equipped with multiple baffles 114 arranged at intervals perpendicular to the conveying direction. The baffles 114 are arranged laterally to form a physical barrier, directly preventing the plants from sliding down. This solves the problem of plants sliding down during inclined conveying, ensuring that the plants are stably conveyed to the drum screen 510.

[0061] Specifically, the plant conveying device 520 being installed at an angle on the vehicle body 500 means that the entire plant conveying device 520 is fixed to the vehicle body 500 at a certain angle. This angled installation facilitates the transport of plants from the ground or a lower position to the drum screen 510 on the agricultural vehicle, thus meeting the operational needs of the agricultural vehicle.

[0062] "The carrying section 112 of the conveyor belt 110 is configured to move from bottom to top" means that the part of the conveyor belt 110 used to carry plants moves from the lower end to the higher end. This ensures that the plants can move upward against gravity during inclined conveying, thereby achieving conveying from a low place to a high place.

[0063] When the plant is fed into the inclined conveyor belt 110, the upward movement of the conveyor belt 110 and the blocking effect of the baffle 114 can effectively prevent the plant from sliding down due to gravity during the inclination process, ensuring that the plant is stably transported to the drum screen 510 for subsequent steps.

[0064] It should be noted that the baffle 114 has a fixed end 115 fixed to the conveyor belt 110 and a placement platform 116 for carrying plants. One end of the placement platform 116 is connected to the fixed end 115, and the other end extends upward and bends towards the fixed end 115 to form a stop wall 117, which is used to reduce the plants from falling off when the carrying section of the conveyor belt 110 shakes.

[0065] The fixed end 115 can be fixed to the conveyor belt 110 by bolts or other fasteners.

[0066] In addition to the preferred embodiments described above, the present invention has other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection claimed by the present invention.

Claims

1. A plant conveying device, comprising a frame (100), a conveyor belt (110) arranged around the frame (100), and a power mechanism for driving the conveyor belt (110) to rotate, wherein the conveyor belt (110) has a plurality of mesh openings (111) for dislodging plant roots and soil, characterized in that, It also includes a vibration assembly disposed between the carrying section (112) and the return section (113) of the conveyor belt (110); The vibration assembly includes a rolling shaft (200) driven to rotate on a frame (100) by a power mechanism, and at least one protrusion (211) disposed in the circumferential direction of the rolling shaft (200). The protrusion (211) is configured such that when the rolling shaft (200) rotates, the protrusion (211) periodically lifts the bearing section (112), so that the bearing section (112) can vibrate up and down in the lifting direction.

2. The plant conveying device according to claim 1, characterized in that, The vibration mechanism also includes at least one vibration cylinder (210), which is sleeved on the outer periphery of the rolling shaft (200) and rotates with the rolling shaft (200). A protrusion (211) is provided on the outer periphery wall of the vibration cylinder (210).

3. The plant conveying device according to claim 1, characterized in that, The protrusions (211) are provided in three parts and are evenly distributed along the circumference of the rolling axis (200).

4. The plant conveying device according to claim 1, characterized in that, The power mechanism includes a drive shaft (300) that drives the conveyor belt (110) to rotate. The drive shaft (300) is connected to the rolling shaft (200) to drive the rolling shaft (200) to rotate.

5. The plant conveying device according to claim 4, characterized in that, One end of the drive shaft (300) is provided with a first sprocket (310), and the other end of the rolling shaft (200) is provided with a second sprocket (220). The first sprocket (310) and the second sprocket (220) are connected by a first chain drive.

6. The plant conveying device according to claim 5, characterized in that, The vibration mechanism includes a first bearing housing (230), and the other end of the rolling shaft (200) is rotatably supported on the frame (100) via the first bearing housing (230). The first bearing housing (230) is fixed to the frame (100) to provide rotational support for the rolling shaft (200).

7. The plant conveying device according to claim 6, characterized in that, The vibration mechanism also includes a second bearing housing (240). One end of the rolling shaft (200) with a second sprocket (220) is rotatably mounted on the frame (100) via the second bearing housing (240). The second bearing housing (240) is fixed to the frame (100) to provide rotational support for the rolling shaft (200).

8. The plant conveying device according to claim 1, characterized in that, At least one support shaft (400) is provided between the carrying section (112) and the return section (113) of the conveyor belt (110). The support shaft (400) is rotatably supported on the frame (100) and is used to support the conveyor belt (110).

9. An agricultural vehicle, comprising a vehicle body (500) and a drum screen (510) disposed on the vehicle body (500), characterized in that, It also includes a plant conveying device as described in any one of claims 1 to 7, the plant conveying device being mounted on the vehicle body (500) and located upstream of the drum screen (510), the discharge end of the plant conveying device being connected to the feed inlet of the drum screen (510).

10. The agricultural vehicle according to claim 9, characterized in that, The plant conveying device is installed at an angle on the vehicle body (500). The carrying section (112) of the conveyor belt (110) is configured to move from bottom to top. The conveyor belt (110) is provided with a number of baffles (114) arranged at intervals perpendicular to the conveying direction to prevent the plants from sliding down during the inclined conveying.

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