A vibrating chain cassava harvester

Abstract

The application discloses a vibrating chain cassava harvester, and relates to an intelligent agricultural mechanical device, which comprises a digging mechanism, a vibrating conveying and separating mechanism and a folding guide assembly. The digging mechanism is arranged in front of the vibrating conveying and separating mechanism, and the folding guide assembly is arranged behind the vibrating conveying and separating mechanism. The folding guide assembly is provided with two groups and is symmetrically arranged. Each group of the folding guide assembly comprises a folding guide plate and a folding guide rod. One end of the folding guide plate is fixed to the tail of the vibrating conveying and separating mechanism, and the other end of the folding guide plate extends to the center of the walking direction of the vibrating conveying and separating mechanism. The folding guide rod is provided with a plurality of folding guide rods which are fixedly arranged on the bottom of the folding guide plate along the length direction of the folding guide plate. The lower end of the folding guide rod is inclined to the center of the walking direction of the vibrating conveying and separating mechanism. The harvester can reduce the falling range of cassava tubers, and the cassava tubers can be gathered together so as to be collected subsequently.

Description

Technical Field

[0001] This invention relates to agricultural machinery and devices, specifically to a vibrating chain cassava harvester. Background Technology

[0002] Cassava is one of the world's three major tuber crops (cassava, potato, and sweet potato) and one of the seven major crops with an annual output of over 100 million tons. It is known as the "underground granary" and the "king of starch" and is an important food and energy crop in many tropical and subtropical countries.

[0003] Cassava harvesting mainly refers to the harvesting of underground tubers. Currently, the main mechanized harvesting method for cassava in my country is segmented harvesting. This involves manually cutting and transporting cassava stalks or mechanically crushing and returning them to the field, then using a tractor-driven cassava digging harvester to excavate the cassava tubers, lifting them up and spreading them flat on the surface of the cassava field for easy manual picking and loading.

[0004] For example, CN117016158A discloses a digging and vibrating cassava harvester, which includes a frame, a digging mechanism, a cassava-soil separation mechanism, and a transmission mechanism. The digging mechanism is located at the front end of the frame, the cassava-soil separation mechanism is located inside the frame and at the rear end of the digging mechanism, and the transmission mechanism is located on the frame and is connected to the cassava-soil separation mechanism. The digging mechanism is used to dig out the cassava and its adhering soil from the cassava ridges and to transport the cassava-soil mixture to the rear cassava-soil separation mechanism. The cassava-soil separation mechanism is used to break up large clumps of soil and separate the cassava-soil mixture. The cassava is transported to the rear, and the fine soil is leaked back to the ground through the gaps between the conveying and separating chain rods.

[0005] Existing cassava harvesters have the following shortcomings: The excavated material is conveyed backward by a conveying and separating device. Simultaneously, a vibration mechanism causes the conveying and separating chain to vibrate, causing smaller items like soil and small stones to fall back to the ground through the gaps between the chain. Larger items such as cassava tubers, branches, leaves, and weeds remain on the chain, achieving initial separation, before finally falling back to the ground. However, because the cassava tubers, broken branches and leaves, and weeds fall freely from the chain and are randomly scattered on the ground, the cassava tubers are relatively dispersed, making subsequent collection difficult. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned problems and provide a vibrating chain cassava harvester that can reduce the falling range of cassava tubers and gather them together for subsequent collection.

[0007] The objective of this invention is achieved through the following technical solution: A vibrating chain cassava harvester includes a digging mechanism, a vibrating conveying and separating mechanism, and a gathering and guiding assembly; The excavation mechanism is located in front of the vibratory conveying and separating mechanism, and the retraction guide assembly is located behind the vibratory conveying and separating mechanism. There are two sets of the retraction guide assembly arranged symmetrically. Each set of the retraction guide assembly includes a retraction guide plate and a retraction guide rod. One end of the retraction guide plate is fixed to the tail of the vibratory conveying and separating mechanism, and the other end of the retraction guide plate extends towards the center of the vibratory conveying and separating mechanism in the direction of travel. Multiple retraction guide rods are fixedly arranged at the bottom of the retraction guide plate along the length of the retraction guide plate, and the lower end of the retraction guide rod is inclined towards the center of the vibratory conveying and separating mechanism in the direction of travel.

[0008] The working principle of the above-mentioned vibrating chain cassava harvester is as follows: During operation, a vibrating chain cassava harvester is towed by a tractor and moved through the cassava field. The digging mechanism scoops up the cassava along with the soil, and then the vibrating conveyor and separator conveys the cassava and soil mixture backward. The vibrating conveyor and separator breaks up large clumps of soil through vibration and separates the cassava and soil mixture. The fine soil fragments fall back to the ground through the gaps between the conveyor and separator chains of the vibrating conveyor and separator, while impurities such as cassava, branches and leaves, large clumps of mud, and large stones are conveyed backward. Two sets of gathering guide plates gather the cassava and impurities such as branches and leaves towards the center of the vibrating conveyor and separator's direction of travel, so that the cassava and impurities can fall to the ground in a relatively concentrated manner for subsequent collection. Furthermore, since the gathering guide rods are located below the gathering guide plate, the gap between two adjacent gathering guide rods forms a large filtration space, which can filter out larger clumps of mud or stones (but smaller than the gap), and only intercept larger impurities such as cassava tubers, cassava branches and leaves, and weeds. This allows larger impurities such as cassava tubers and cassava branches to fall more concentratedly at the center of the vibrating conveyor separation mechanism's travel direction, further facilitating subsequent cassava collection.

[0009] In a preferred embodiment of the present invention, the vibrating conveying and separating mechanism includes a conveyor frame, conveying and separating chain rods, and a conveying and separating drive mechanism for driving the conveying and separating chain rods to move cyclically. Multiple conveying and separating chain rods are provided. By setting multiple conveying and separating chain rods and having them move cyclically driven by the drive mechanism, continuous and stable conveying of the potato-soil mixture can be achieved. Simultaneously, the vibration enhances the soil breaking and separation effect, avoids material blockage, and improves separation efficiency and conveying reliability.

[0010] Furthermore, the vibrating conveying and separating mechanism includes a vibration mechanism, which is a cam mechanism comprising a camshaft and cams at both ends of the camshaft. The two ends of the camshaft are installed in arc-shaped adjustment holes in the conveyor frame of the vibrating conveying and separating mechanism. The cams contact the upper conveying and separating chain rod. The camshaft is connected to the conveying and separating drive mechanism via a transmission structure. Through this structure, the conveying and separating chain rod can be driven to vibrate using the power of the conveying and separating drive mechanism, which helps to improve separation efficiency.

[0011] In a preferred embodiment of the present invention, the vibrating conveying and separating mechanism includes an anti-accumulation feeding mechanism to prevent cassava branches, leaves, or weeds from accumulating at the front end of the vibrating conveying and separating mechanism. This anti-accumulation feeding mechanism is positioned above the front end of the vibrating conveying and separating mechanism. This structure effectively prevents lightweight materials such as cassava branches, leaves, and weeds from accumulating at the front end of the conveying mechanism, avoiding blockages and poor conveying, ensuring the smooth entry of the cassava-soil mixture into the separating zone, and improving the continuity and stability of the harvesting process.

[0012] Furthermore, the anti-stacking conveying mechanism includes anti-stacking blocks, anti-stacking mounting rods, and an anti-stacking conveying transmission assembly. The anti-stacking conveying transmission assembly includes an anti-stacking conveying drive shaft, an anti-stacking conveying drive belt, and anti-stacking conveying pulleys. Two anti-stacking conveying drive shafts are provided and connected to the conveying and separating drive mechanism of the vibratory conveying and separating mechanism via a synchronous transmission structure. Two anti-stacking conveying drive belts are provided and respectively disposed at both ends of the anti-stacking conveying drive shaft via anti-stacking conveying pulleys. Multiple anti-stacking mounting rods are evenly spaced between two anti-stacking conveying drive belts. Multiple sets of anti-stacking blocks are provided, with each set of blocks mounted on a different anti-stacking mounting rod. Each set of anti-stacking mounting rods includes multiple anti-stacking mounting rods. In actual cassava harvesting operations, because cassava branches, leaves, weeds, and other impurities are relatively small in mass and occupy a large amount of space, they easily clog the front end of the vibratory conveying and separating mechanism, affecting the normal conveying of cassava. Therefore, through the above structure, the anti-accumulation conveying drive shaft and the anti-accumulation conveying drive belt move the anti-accumulation mounting rod, and the anti-accumulation block pushes the cassava branches, leaves, weeds and other impurities blocking the front end of the vibrating conveying and separating mechanism forward, effectively solving the problem of cassava branches, leaves, weeds and other impurities blocking the front end of the vibrating conveying and separating mechanism.

[0013] Furthermore, the anti-stacking conveying mechanism also includes a temporary limiting and fixing component, which includes a temporary limiting and fixing clamp, a temporary limiting and fixing belt, and a temporary limiting and fixing pulley. The length of the temporary limiting and fixing belt is less than the length of the anti-stacking conveying transmission belt. Multiple temporary limiting and fixing belts are provided, and one end of each temporary limiting and fixing belt is connected to the anti-stacking conveying transmission shaft closer to the excavation mechanism via a temporary limiting and fixing pulley. Two sets of temporary limiting and fixing clamps are provided and are respectively set on two temporary limiting and fixing belts. Each set of temporary limiting and fixing clamps includes multiple evenly arranged temporary limiting and fixing clamps. Each temporary limiting and fixing clamp includes a long clamp and a short clamp. The long clamp and the short clamp are arranged in the length direction of the temporary limiting and fixing belt. The gap between the long clamp and the short clamp forms a temporary limiting and fixing groove. In the direction of movement of the temporary limiting and fixing belt, the short clamp is located in front of the long clamp. The anti-stacking block is rotatably connected to the anti-stacking mounting rod. The anti-stacking block includes a rotatable connecting part and a pushing part. The rotatable connecting part has clamping planes on both sides. When the temporary limiting fixing clamp is in working state, it drives the freely hanging anti-stacking block to swing upward through the long clamping piece and makes the rotatable connecting part of the anti-stacking block enter the temporary limiting fixing groove of the anti-stacking block.

[0014] Through the above structure, driven by the anti-accumulation conveying drive shaft, the temporary limiting and fixing belt moves cyclically with the temporary limiting and fixing clamp. When the anti-accumulation block is located on the back of the temporary limiting and fixing belt, it engages with the temporary limiting and fixing groove, and is fixed by long and short clamps, keeping it in an inverted state. This allows it to push forward impurities such as cassava branches, leaves, and weeds, solving the problem of their accumulation. Furthermore, since the length of the temporary limiting and fixing belt is less than the length of the anti-accumulation conveying drive belt, when the anti-accumulation block moves to the end of the temporary limiting and fixing belt on the back, the temporary limiting and fixing clamp needs to flip upwards. At this time, the anti-accumulation block begins to disengage from the temporary limiting and fixing groove of the clamp and hangs freely. This prevents the anti-accumulation block from pushing up cassava branches, leaves, and weeds, thus successfully completing the cleaning of these impurities. Next, the anti-stacking block continues to move forward with the anti-stacking mounting rod, and then moves upward with the anti-stacking mounting rod, turning to the front of the anti-stacking conveyor belt, and then moves towards the digging mechanism; when the anti-stacking block approaches the temporary limiting fixing belt, the corresponding temporary limiting fixing clamp just moves to the end of the temporary limiting fixing belt, then the long clamp of the temporary limiting fixing clamp presses against the conveying part of the anti-stacking block, thereby causing the entire freely hanging anti-stacking block to flip upward, at the same time the rotating connecting part of the anti-stacking block enters the temporary limiting fixing groove of the anti-stacking block, completing the temporary fixing fit, and then moves to the back to convey the branches, leaves, weeds and other impurities of cassava.

[0015] Furthermore, all temporary limiting and fixing belts are located between the two anti-stacking conveyor belts. This structure allows the temporary limiting and fixing belts to operate between the anti-stacking conveyor belts, helping to coordinate the movement of each component, avoid mutual interference, enhance the overall structural compactness and transmission coordination, and improve the synchronization effect of anti-stacking and conveying.

[0016] Furthermore, both ends of the anti-stacking conveying drive shaft are rotatably connected to the conveyor frame. By rotatably connecting both ends of the conveying drive shaft to the frame, the stability and load-bearing capacity of the drive shaft are enhanced, ensuring that the anti-stacking conveying mechanism can still operate smoothly in a high-speed vibration environment and extending its service life.

[0017] In a preferred embodiment of the present invention, the digging mechanism includes an excavator frame, a digging shovel, and a vibration drive mechanism; the excavator frame is connected to a tractor via a suspension structure. This structure facilitates quick attachment to the tractor, improving the implement's applicability and maneuverability; the vibration drive mechanism causes the digging shovel to vibrate, effectively reducing digging resistance, improving soil penetration and excavation efficiency, and minimizing cassava damage.

[0018] Compared with the prior art, the present invention has the following advantages: 1. By using two sets of symmetrically arranged guide plates, cassava and impurities such as branches and leaves are gathered towards the center of the walking direction, so that the cassava tubers fall to the ground in a concentrated manner, avoiding scattering and making it easier for subsequent manual or mechanical collection.

[0019] 2. The gathering guide rods are set below the gathering guide plate, and a large filtration gap is formed between adjacent guide rods. This can filter out larger mud clumps, stones and other impurities, and only intercept larger objects such as cassava tubers and branches, so that they fall more concentrated in the center.

[0020] 3. The retraction guide assembly has a simple structure, consisting only of a retraction guide plate and a guide rod. It is installed at the tail of the vibratory conveying and separating mechanism without adding complex transmission or power components, making it easy to manufacture and maintain.

[0021] 4. Through centralized material collection and preliminary filtration, cassava tubers are more concentrated in the field, significantly reducing the time and labor costs of subsequent picking and loading. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the vibrating chain cassava harvester of the present invention.

[0023] Figure 2 This is a side view of the first embodiment of the vibrating chain cassava harvester of the present invention.

[0024] Figure 3 This is a three-dimensional structural diagram of the excavating shovel and vibration drive mechanism according to the first embodiment of the present invention.

[0025] Figure 4 This is a three-dimensional structural diagram of a second embodiment of the vibrating chain cassava harvester of the present invention.

[0026] Figure 5 This is a side view of the anti-stacking delivery mechanism according to the second embodiment of the present invention.

[0027] Figure 6 This is a three-dimensional structural diagram of the anti-stacking delivery mechanism according to the second embodiment of the present invention.

[0028] Figures 7-8 The images show two different states of the anti-stacking block and temporary limiting fixing assembly according to the second embodiment of the present invention.

[0029] Figure 9 This is a side view of the third embodiment of the vibrating chain cassava harvester of the present invention.

[0030] Figure 10This is a partial side view of the excavation mechanism according to the third embodiment of the present invention. Detailed Implementation

[0031] To enable those skilled in the art to fully understand the technical solutions of the present invention, the present invention will be further described below in conjunction with embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0032] Example 1 Combination Figures 1-2 The vibrating chain cassava harvester of this embodiment includes a digging mechanism, a vibrating conveying and separating mechanism, and a gathering and guiding assembly. The digging mechanism is located in front of the vibrating conveying and separating mechanism, and the gathering and guiding assembly is located behind the vibrating conveying and separating mechanism. The gathering and guiding assembly has two sets and is symmetrically arranged. Each set of the gathering and guiding assembly includes a gathering guide plate 1 and a gathering guide rod 2. One end of the gathering guide plate 1 is fixed to the tail of the vibrating conveying and separating mechanism, and the other end of the gathering guide plate 1 extends towards the center of the traveling direction of the vibrating conveying and separating mechanism. Multiple gathering guide rods 2 are fixedly arranged along the length direction of the gathering guide plate 1 at the bottom of the gathering guide plate 1, and the lower end of the gathering guide rod 2 is inclined towards the center of the traveling direction of the vibrating conveying and separating mechanism.

[0033] Combination Figures 1-2 The vibratory conveying and separating mechanism includes a conveyor frame 3, conveying and separating chain rods 4, and a conveying and separating drive mechanism for driving the conveying and separating chain rods 4 to move cyclically. Multiple conveying and separating chain rods 4 are provided. Specifically, the conveying and separating drive mechanism can refer to existing technology. By setting multiple conveying and separating chain rods 4 and driving them to move cyclically by the drive mechanism, the continuous and stable conveying of the potato-soil mixture can be achieved. Simultaneously, the vibration enhances the soil breaking and separation effect, avoids material blockage, and improves separation efficiency and conveying reliability.

[0034] Furthermore, the vibrating conveying and separating mechanism includes a vibration mechanism (not shown in the figure, but can be referenced from existing technology). This vibration mechanism is a cam mechanism, comprising a camshaft and cams at both ends of the camshaft. The two ends of the camshaft are installed in the arc-shaped adjustment holes of the conveyor frame 3 of the vibrating conveying and separating mechanism. The cams contact the upper conveying and separating chain rod 4. The camshaft is connected to the conveying and separating drive mechanism via a transmission structure. Through this structure, the conveying and separating chain rod 4 can be driven to vibrate using the power of the conveying and separating drive mechanism, which helps to improve separation efficiency.

[0035] Combination Figures 1-3The excavating mechanism includes an excavator frame 5, an excavating shovel 6, and a vibration drive mechanism; the excavator frame 5 is connected to the tractor via a suspension structure. This suspension structure facilitates quick attachment to the tractor, improving the implement's applicability and maneuverability; the vibration drive mechanism causes the excavating shovel 6 to vibrate, effectively reducing digging resistance, improving soil penetration and excavation efficiency, and minimizing cassava damage.

[0036] Combination Figures 1-3 The vibration drive mechanism includes a vibration power source and a vibration transmission assembly. The digging power source is composed of the power source of the tractor. The vibration transmission assembly includes a primary transmission assembly and a secondary transmission assembly. The primary transmission assembly is connected between the power source of the tractor and the secondary transmission assembly. The secondary transmission assembly includes a swing transmission structure for driving the digging shovel 6 to swing back and forth.

[0037] Combination Figure 3 The primary transmission assembly includes a primary transmission main shaft 7, a bevel gearbox 8, and a primary transmission branch shaft 9. One end of the primary transmission main shaft 7 is connected to the transmission mechanism of the tractor, and the other end of the primary transmission main shaft 7 is connected to the bevel gearbox 8. There are two primary transmission branch shafts 9, which are symmetrically arranged on both sides of the bevel gearbox 8.

[0038] Furthermore, the swing transmission structure is provided in two sets and symmetrically arranged on both sides of the primary transmission assembly. Each set of swing transmission structure includes an eccentric wheel 10, an eccentric swing arm 11, and a vibrating swing arm 12. The eccentric part of the eccentric wheel 10 is fixedly connected to the end of the primary transmission shaft 9. One end of the eccentric swing arm 11 is sleeved on the body of the eccentric wheel 10 through a bearing. The vibrating swing arm 12 is rotatably connected to the excavator frame 5. Taking the rotation center between the vibrating swing arm 12 and the excavator frame 5 as the boundary, one end of the vibrating swing arm 12 is rotatably connected to the other end of the eccentric swing arm 11. The other end of the vibrating swing arm 12 is fixedly connected to the excavator shovel 6.

[0039] Through the above structure, the power is transmitted to the eccentric wheel 10 through the primary transmission shaft 9, causing the eccentric wheel 10 to rotate, which in turn drives the eccentric swing arm 11 to swing back and forth. Then, the vibrating swing arm 12 drives the digging shovel 6 to swing in an arc. This not only accelerates soil breaking, but also shakes the soil, achieving low-resistance digging and shaking off the soil, reducing soil adhesion.

[0040] Combination Figures 1-2 The working principle of the above-mentioned vibrating chain cassava harvester is as follows: During operation, a vibrating chain cassava harvester is towed by a tractor and moved through the cassava field. The digging mechanism digs up the cassava along with the soil, and then the vibrating conveying and separating mechanism transports the cassava and soil mixture backward. The vibrating conveying and separating mechanism breaks up large clumps of soil by vibration and separates the cassava and soil mixture. The fine soil fragments fall back to the ground through the gaps between the conveying and separating chain rods 4 of the vibrating conveying and separating mechanism, while impurities such as cassava, branches and leaves, large clumps of mud, and large stones are transported backward. Two sets of gathering guide plates 1 gather the cassava and impurities such as branches and leaves towards the center of the vibrating conveying and separating mechanism's travel direction, so that the cassava and impurities can fall to the ground in a relatively concentrated manner for subsequent collection. Furthermore, since the gathering guide rod 2 is located below the gathering guide plate 1, the gap between two adjacent gathering guide rods 2 forms a large filtration space, which can filter out larger mud clumps or stones (but smaller than the gap), and only intercept impurities such as cassava tubers, cassava branches and leaves, and weeds that occupy a large space. This allows impurities such as cassava tubers and cassava branches that occupy a large space to fall more concentratedly at the center of the vibrating conveyor separation mechanism's travel direction, further facilitating the subsequent collection of cassava.

[0041] Example 2 Unlike Embodiment 1, the vibrating conveyor separation mechanism includes an anti-accumulation feeding mechanism to prevent cassava branches, leaves, or weeds from accumulating at the front end of the mechanism. This anti-accumulation feeding mechanism is positioned above the front end of the vibrating conveyor separation mechanism. This structure effectively prevents lightweight materials such as cassava branches, leaves, and weeds from accumulating at the front end of the conveyor, avoiding blockages and poor conveying, ensuring the smooth entry of the cassava-soil mixture into the separation zone, and improving the continuity and stability of the harvesting process.

[0042] Combination Figures 4-6The anti-stacking conveying mechanism includes anti-stacking blocks 13, anti-stacking mounting rods 14, and an anti-stacking conveying transmission assembly. The anti-stacking conveying transmission assembly includes an anti-stacking conveying drive shaft 15, an anti-stacking conveying drive belt 16, and anti-stacking conveying pulleys. Two anti-stacking conveying drive shafts 15 are connected to the conveying and separating drive mechanism of the vibratory conveying and separating mechanism via a synchronous transmission structure. Two anti-stacking conveying drive belts 16 are respectively located at both ends of the anti-stacking conveying drive shaft 15 via anti-stacking conveying pulleys. Multiple anti-stacking mounting rods 14 are evenly spaced between two anti-stacking conveying drive belts 16. Multiple sets of anti-stacking blocks 13 are provided, with each set positioned on a different anti-stacking mounting rod 14. Each set of anti-stacking mounting rods 14 includes multiple anti-stacking mounting rods 14. In actual cassava harvesting operations, because cassava branches, leaves, weeds, and other impurities are relatively small and occupy a large amount of space, they easily clog the front end of the vibratory conveying and separating mechanism, affecting the normal conveying of cassava. Therefore, through the above structure, the anti-accumulation conveying drive shaft 15 and the anti-accumulation conveying drive belt 16 move the anti-accumulation mounting rod 14, and the anti-accumulation push block 13 pushes the cassava branches, leaves, weeds and other impurities blocking the front end of the vibrating conveying and separating mechanism forward, effectively solving the problem of cassava branches, leaves, weeds and other impurities blocking the front end of the vibrating conveying and separating mechanism.

[0043] Combination Figures 4-8The anti-stacking conveying mechanism further includes a temporary limiting and fixing assembly, which includes a temporary limiting and fixing clamp 17, a temporary limiting and fixing belt 18, and a temporary limiting and fixing pulley. The length of the temporary limiting and fixing belt 18 is less than the length of the anti-stacking conveying transmission belt 16. Multiple temporary limiting and fixing belts 18 are provided, and one end of each belt 18 is connected to the anti-stacking conveying transmission shaft 15, which is closer to the excavating mechanism, via a temporary limiting and fixing pulley. Two sets of temporary limiting and fixing clamps 17 are provided and respectively disposed on two temporary limiting and fixing belts 18. Each set of clamps 17 includes multiple evenly arranged clamps, and each clamp includes a long clamp 17-1 and a short clamp 17-2. Long clamping plate 17-1 and short clamping plate 17-2 are arranged along the length of the temporary limiting and fixing belt 18. The gap between the long clamping plate 17-1 and the short clamping plate 17-2 forms a temporary limiting and fixing groove. In the direction of movement of the temporary limiting and fixing belt 18, the short clamping plate 17-2 is located in front of the long clamping plate 17-1. The anti-stacking block 13 is rotatably connected to the anti-stacking mounting rod 14. The anti-stacking block 13 includes a rotating connecting part 13-1 and a pushing part 13-2. The rotating connecting part 13-1 has clamping planes on both sides. In the working state, the temporary limiting and fixing clamp 17 drives the freely hanging anti-stacking block 13 to swing upward through the long clamping plate 17-1 and causes the rotating connecting part 13-1 of the anti-stacking block 13 to fall into the temporary limiting and fixing groove of the anti-stacking block 13.

[0044] With the above structure, driven by the anti-accumulation conveying drive shaft 15, the temporary limiting and fixing belt 18 moves back and forth with the temporary limiting and fixing clamp 17. When the anti-accumulation block 13 is located on the back of the temporary limiting and fixing belt 18, the anti-accumulation block 13 is fitted in the temporary limiting and fixing groove, and is fixed by the long clamp 17-1 and the short clamp 17-2, so that the anti-accumulation block 13 is kept in an inverted state, thereby pushing the branches, leaves, weeds and other impurities of cassava forward and solving the problem of the accumulation of branches, leaves, weeds and other impurities of cassava. Furthermore, since the length of the temporary limiting and fixing belt 18 is less than the length of the anti-stacking conveyor belt 16, when the anti-stacking block 13 moves to the end of the temporary limiting and fixing belt 18 on the back, the temporary limiting and fixing clamp 17 needs to be flipped upward. At this time, the anti-stacking block 13 begins to disengage from the temporary limiting and fixing groove of the temporary limiting and fixing clamp 17 and turns into a free hanging state. This can prevent the anti-stacking block 13 from pushing up the branches, leaves, weeds and other impurities of cassava, and smoothly complete the cleaning work of the branches, leaves, weeds and other impurities of cassava. Next, the anti-stacking block 13 continues to move forward with the anti-stacking mounting rod 14, then moves upward with the anti-stacking mounting rod 14, turning to the front of the anti-stacking conveyor belt 16, and then moves towards the excavation mechanism; when the anti-stacking block 13 approaches the temporary limiting fixing belt 18, the corresponding temporary limiting fixing clamp 17 just moves to the end of the temporary limiting fixing belt 18, and then the long clamping piece 17-1 of the temporary limiting fixing clamp 17 presses against the conveying part 13-2 of the anti-stacking block 13, as... Figure 7 This causes the entire freely drooping anti-stacking block 13 to flip upwards, and at the same time, the rotating connecting part 13-1 of the anti-stacking block 13 falls into the temporary limiting and fixing groove of the anti-stacking block 13, such as Figure 8 After completing the temporary fixation, it moves to the back to move the branches, leaves, weeds and other impurities of the cassava.

[0045] Furthermore, all temporary limiting and fixing belts 18 are located between the two anti-stacking conveyor belts 16. This structure allows the temporary limiting and fixing belts 18 to operate between the anti-stacking conveyor belts 16, helping to coordinate the movement of each component, avoid mutual interference, enhance the overall structural compactness and transmission coordination, and improve the synchronization effect of anti-stacking and conveying.

[0046] Furthermore, both ends of the anti-stacking conveying drive shaft 15 are rotatably connected to the conveyor frame 3. By rotatably connecting both ends of the conveying drive shaft to the frame, the stability and load-bearing capacity of the drive shaft are enhanced, ensuring that the anti-stacking conveying mechanism can still operate smoothly in a high-speed vibration environment and extending its service life.

[0047] Example 3 Combination Figure 9-10Unlike Embodiment 1, the vibrating swing arm 12 in this embodiment includes a first split swing arm 12-1 and a second split swing arm 12-2. There are two first split swing arms 12-1 arranged in parallel. One end of each of the two first split swing arms 12-1 is rotatably connected to the excavator frame 5, and the other end of each of the two first split swing arms 12-1 is rotatably connected to the second split swing arm 12-2. The second split swing arm 12-2 is fixedly connected to the excavator shovel 6. One end of the eccentric swing arm 11 is sleeved on the body of the eccentric wheel 10 through a bearing, and the other end of the eccentric swing arm 11 is rotatably connected to one of the first split swing arms 12-1.

[0048] Furthermore, the front end of the lateral section of the digging part of the digging shovel 6 is a triangular structure, and the center line of the triangular structure is parallel to the length direction of the second split swing arm 12-2 (essentially the line connecting the two rotation centers).

[0049] With the above structure, when the primary transmission shaft 9 transmits power to the eccentric wheel 10 and the eccentric swing arm 11, the eccentric swing arm 11, along with the overall vibrating swing arm 12, swings back and forth. Since the two first-part swing arms 12-1 are of equal length and parallel, the second-part swing arm 12-2 moves parallel during the back-and-forth swing, maintaining a fixed posture (the angle of this posture has been verified through multiple tests to achieve the best soil-breaking effect), thus ensuring consistently high soil-breaking efficiency and improving cassava digging efficiency. Furthermore, since the centerline of the digging part of the digging shovel 6 is parallel to the length direction of the second-part swing arm 12-2, it is actually the centerline of the digging part of the digging shovel 6 that moves parallel, maintaining a constant soil-breaking angle and always facing the soil head-on. Simultaneously, the digging part of the digging shovel 6 is divided into two parts (one above the other), further reducing soil-breaking resistance and improving digging efficiency—a very ingenious design! Furthermore, the vibrating swing arm 12 also includes a third component swing arm 12-3, the two ends of which are rotatably connected to the two first component swing arms 12-1. The third component swing arm 12-3 is parallel to the second component swing arms 12-2. This improves the rigidity and stability of the entire vibrating swing arm 12, ensuring sufficient strength to perform reciprocating swing operations.

[0050] The above are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A vibrating chain cassava harvester, characterized in that, Includes an excavation mechanism, a vibratory conveyor separation mechanism, and a retraction guide assembly; The excavation mechanism is located in front of the vibratory conveying and separating mechanism, and the retraction guide assembly is located behind the vibratory conveying and separating mechanism. There are two sets of the retraction guide assembly arranged symmetrically. Each set of the retraction guide assembly includes a retraction guide plate and a retraction guide rod. One end of the retraction guide plate is fixed to the tail of the vibratory conveying and separating mechanism, and the other end of the retraction guide plate extends towards the center of the vibratory conveying and separating mechanism in the direction of travel. Multiple retraction guide rods are fixedly arranged at the bottom of the retraction guide plate along the length of the retraction guide plate, and the lower end of the retraction guide rod is inclined towards the center of the vibratory conveying and separating mechanism in the direction of travel. The vibratory conveying and separating mechanism includes an anti-accumulation conveying mechanism to prevent cassava branches, leaves, or weeds from accumulating at the front end of the mechanism. The anti-accumulation conveying mechanism includes anti-accumulation blocks, anti-accumulation mounting rods, and an anti-accumulation conveying transmission assembly. The anti-accumulation conveying transmission assembly includes an anti-accumulation conveying drive shaft, an anti-accumulation conveying drive belt, and anti-accumulation conveying pulleys. Two anti-accumulation conveying drive shafts are connected to the conveying and separating drive mechanism of the vibratory conveying and separating mechanism via a synchronous transmission structure. Two anti-accumulation conveying drive belts are respectively located at both ends of the anti-accumulation conveying drive shaft via anti-accumulation conveying pulleys. Multiple anti-accumulation mounting rods are evenly distributed between two anti-accumulation conveying drive belts. Multiple sets of anti-accumulation blocks are provided, with each set mounted on a different anti-accumulation mounting rod. Each set of anti-accumulation blocks includes multiple anti-accumulation blocks. The anti-stacking conveying mechanism also includes a temporary limiting and fixing component, which includes a temporary limiting and fixing clamp, a temporary limiting and fixing belt, and a temporary limiting and fixing pulley. The length of the temporary limiting and fixing belt is less than the length of the anti-stacking conveying transmission belt. There are multiple temporary limiting and fixing belts, and one end of each temporary limiting and fixing belt is connected to the anti-stacking conveying transmission shaft closer to the excavation mechanism via a temporary limiting and fixing pulley. There are two sets of temporary limiting and fixing clamps, which are respectively set on two temporary limiting and fixing belts. Each set of temporary limiting and fixing clamps includes multiple evenly arranged temporary limiting and fixing clamps. Each temporary limiting and fixing clamp includes a long clamp and a short clamp. The long clamp and the short clamp are arranged in the length direction of the temporary limiting and fixing belt. The gap between the long clamp and the short clamp forms a temporary limiting and fixing groove. In the direction of movement of the temporary limiting and fixing belt, the short clamp is located in front of the long clamp. The anti-stacking block is rotatably connected to the anti-stacking mounting rod. The anti-stacking block includes a rotatable connecting part and a pushing part. The rotatable connecting part has clamping planes on both sides. When the temporary limiting fixing clamp is in working state, it drives the freely hanging anti-stacking block to swing upward through the long clamping piece and makes the rotatable connecting part of the anti-stacking block enter the temporary limiting fixing groove of the anti-stacking block.

2. The vibrating chain cassava harvester according to claim 1, characterized in that, The vibration conveying and separating mechanism includes a conveyor frame, a conveying and separating chain rod, and a conveying and separating drive mechanism for driving the conveying and separating chain rod to move in a cycle. The conveying and separating chain rod is provided in multiple ways.

3. The vibrating chain cassava harvester according to claim 1, characterized in that, The vibrating conveying and separating mechanism is equipped with a vibrating mechanism, which is a cam mechanism, including a camshaft and cams at both ends of the camshaft. The two ends of the camshaft are installed in the arc-shaped adjustment holes of the conveyor frame of the vibrating conveying and separating mechanism. The cams are in contact with the conveying and separating chain rod located on the upper layer. The camshaft is connected to the conveying and separating drive mechanism through a transmission structure.

4. The vibrating chain cassava harvester according to claim 1, characterized in that, The anti-accumulation conveying mechanism is located above the front end of the vibrating conveying and separating mechanism.

5. The vibrating chain cassava harvester according to claim 1, characterized in that, All temporary limit fixing belts are located between the two anti-accumulation conveyor belts.

6. The vibrating chain cassava harvester according to claim 1, characterized in that, The two ends of the anti-stacking conveyor shaft are rotatably connected to the conveyor frame.

7. The vibrating chain cassava harvester according to claim 1, characterized in that, The excavation mechanism includes an excavator frame, an excavator shovel, and a vibration drive mechanism; the excavator frame is connected to the tractor via a suspension structure.

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