Digging and pulling combined type ginger harvester and working method

Abstract

The invention provides a digging and pulling combined type ginger harvester and a working method, relates to the field of ginger harvesters, and aims to solve the problem that ginger blocks are easy to mechanically damage when ginger is harvested at present, a combined mode of digging and clamping and pulling is adopted, a digging shovel loosens soil through a rotary digging action, conditions are created for ginger seedling extraction, and then the ginger seedlings are harvested; meanwhile, through the cooperation of flexible clamping and lifting effects of the clamping conveying channels on ginger seedlings, stable extraction of the whole ginger is achieved, the situation that an excavating component directly collides with ginger blocks to cause damage is avoided, a flexible clamping space is formed through opposite arrangement of the clamping conveying chains, the ginger seedlings can be reliably fixed, the ginger blocks cannot be extruded, and therefore the ginger seedlings can be stably extracted. The floating support which is obliquely installed can adapt to field terrain fluctuation, and the stability of clamping and conveying is kept; the subsequent ginger seedlings are stably transferred through the clamping side throwing channel, falling or collision in the conveying process is avoided, and the damage risk is further reduced.

Description

Technical Field

[0001] This invention relates to the field of ginger harvesters, specifically to a digging and pulling combined ginger harvester and its working method. Background Technology

[0002] Current self-propelled ginger combine harvesters can complete a series of operations in one go, including automatic guidance and gathering of ginger, vibration digging and soil shaking, intelligent clamping and conveying, flexible soil cleaning and impurity removal, stem cutting and vine throwing, container harvesting, intelligent weighing, quantitative unloading, automatic deviation correction, and automatic speed adjustment. The machine can intelligently monitor the ginger harvesting feed rate and overall machine deviation using sensors, and then adjust the parameters of each key mechanism accordingly, making it suitable for various operating conditions.

[0003] However, the problem of high ginger damage rate still exists. Traditional pure digging or forced conveying methods are prone to mechanical damage such as breakage and skin damage to fragile ginger, which seriously affects its commercial value and storage period. In addition, there is also the problem of limited operation efficiency. Due to incomplete soil removal, unreliable clamping, or poor process connection, the machine is frequently blocked and malfunctions, failing to give full play to the high efficiency advantages that combined harvesting should have. Summary of the Invention

[0004] In view of this, the present invention provides a combined digging and pulling ginger harvester and its working method, which adopts a combination of digging and clamping lifting and conveying to reduce damage to ginger pieces.

[0005] The first objective of this invention is to provide a combined digging and pulling ginger harvester, which adopts the following solution: include: The walking assembly is equipped with a chassis. The clamping and conveying assembly is mounted at an angle on the frame via a floating bracket, and includes two clamping and conveying chains arranged opposite to each other, forming a clamping and conveying channel for clamping and conveying ginger seedlings between the two clamping and conveying chains. The clamping and side-throwing assembly is installed on the frame behind the clamping and conveying assembly to form a clamping and side-throwing channel for clamping and side-throwing ginger seedlings. The clamping and side-throwing channel is connected to the clamping and conveying channel. The digging component is located below the clamping and conveying channel and is rotatably mounted on the frame. The front end of the digging component is equipped with a digging shovel, which is used to extract ginger plants whole by digging in conjunction with the lifting action of the clamping and conveying channel. A multi-stage soil cleaning mechanism is provided behind the digging shovel. The vine-cutting component is located below the clamping and side-throwing component and is equipped with blades for cutting ginger vines and ginger pieces. The ginger piece output component is installed below the vine cutting component to receive and transport the cut ginger pieces.

[0006] Furthermore, the clamping conveyor chain is a rotary chain mechanism, which includes a toothed chain, sprockets, a longitudinal tensioning structure, and a transverse tensioning structure. The toothed chain is fitted with multiple sprockets mounted on the conveyor support, and at least one sprocket is fitted with the longitudinal tensioning structure. The transverse tensioning structure includes a tensioning rod and a tensioning telescopic rod. One side of the tensioning rod is connected to the conveyor support through the tensioning telescopic rod, and the other side abuts against the inner ring of the toothed chain, so as to work together with the longitudinal tensioning structure to tension the toothed chain.

[0007] Furthermore, the clamping and side-throwing assembly includes a horizontal conveying section and a side-throwing section distributed sequentially along the ginger seedling conveying direction. The horizontal conveying section includes two oppositely arranged side-throwing conveying chains forming a horizontal conveying channel between them. The side-throwing conveying chains are also rotary chain mechanisms. The side-throwing section includes an oppositely arranged inclined conveying chain and a ginger seedling pressing tube forming a side-throwing channel between them.

[0008] Furthermore, the tensioning rods are distributed along the moving direction of the toothed chain, with both ends bent towards the side of the conveying bracket to form an arc shape. The tensioning rods are connected to tensioning telescopic rods that are distributed parallel to the axis of the angle steel. A chain support plate is connected to the angle steel. The flange plate at the bottom of the angle steel and the chain support plate extend to the bottom of the toothed chain to support the toothed chain. The chain support plate is located between the flange plate at the bottom of the angle steel and the toothed chain.

[0009] Furthermore, the tensioning rod is located between the conveying supports corresponding to the two clamping conveyor chains, and is distributed on both sides of the clamping conveyor channel.

[0010] Furthermore, the front end of the clamping and conveying assembly is equipped with a dividing assembly, a depth limiting wheel, and an ultrasonic sensor. The ultrasonic sensor is used to measure the height of the front end of the clamping and conveying assembly from the ground. The chassis is equipped with a radar detection assembly for measuring terrain information and an tilt sensor for acquiring the fuselage attitude.

[0011] Furthermore, the multi-stage soil cleaning mechanism includes a primary soil cleaning structure, a secondary soil cleaning structure, and a tertiary soil cleaning structure. The primary soil cleaning structure includes a rotating rubber plate to beat and hold the ginger pieces held and conveyed by the conveying assembly. The secondary soil cleaning structure includes a rotating elastic rod. The tertiary soil cleaning structure includes a rotating brush.

[0012] Furthermore, the ginger chunk output assembly includes a first conveyor belt and a second conveyor belt. The conveyor belt bracket corresponding to the second conveyor belt is rotatably installed at the end of the conveyor belt bracket corresponding to the first conveyor belt. A conveyor frame is installed on the side of the first conveyor belt, and the conveyor frame is provided with a support rod. A handle is installed on the side of the second conveyor belt. The second conveyor belt can rotate and fold relative to the first conveyor belt, and the handle is temporarily fixed to the support rod.

[0013] The second objective of this invention is to provide a method for operating a combined digging and pulling ginger harvester, utilizing the combined digging and pulling ginger harvester as described in the first objective, comprising: The walking component drives the frame forward, and the digging shovel of the digging component rotates close to the ground to dig deep into the soil around the ginger roots. At the same time, the clamping and conveying component clamps the ginger plant with its clamping and conveying chain. Through the lifting action and the digging action of the digging shovel, the whole ginger plant is completely extracted from the soil. The extracted whole ginger plant enters the clamping and conveying channel formed by two clamping and conveying chains, and is conveyed upward along the inclined floating support. During the conveying process, the multi-stage soil cleaning mechanism behind the excavator works simultaneously to gradually remove the soil attached to the ginger root. After the soil is removed, the ginger seedlings are transported to the connecting clamping and side-throwing channel, where they are clamped and transported by the clamping and side-throwing assembly. At this time, the seedling cutting assembly below is activated, and the blades separate the ginger seedlings from the ginger pieces, thus separating the ginger seedlings from the ginger pieces. The ginger seedlings are discharged from the end of the clamping and side-throwing assembly. After being cut, the ginger pieces fall to the ginger piece output component below, where they are received and transported, completing the entire harvesting process.

[0014] Furthermore, the ginger slice output component adopts a two-stage conveying structure, and the second-stage conveying structure can be flipped and folded for storage.

[0015] Compared with the prior art, the advantages and positive effects of this invention are: To address the issue of mechanical damage to ginger rhizomes during harvesting, a combined digging and clamping / lifting mechanism is employed. The digging shovel first loosens the soil through its rotating motion, creating conditions for extracting the ginger stalks. Simultaneously, the clamping and conveying channel provides flexible clamping and lifting of the stalks, ensuring stable extraction of the entire ginger plant. This avoids direct impact damage from the digging components. The relative arrangement of the clamping and conveying chains creates a flexible clamping space, reliably securing the stalks without compressing the ginger rhizomes. The tilted floating support adapts to field terrain variations, maintaining stable clamping and conveying. Subsequently, the stalks are smoothly transferred via a clamping and side-throwing channel, preventing drops or collisions during transport and further reducing the risk of damage. The multi-stage soil-removing mechanism behind the excavator can gradually remove the soil from the surface of the ginger rhizomes after excavation, preventing soil adhesion that could cause blockages in subsequent processes. The dedicated clamping and conveying channel formed by the clamping and conveying chain can stably clamp the ginger stalks, preventing them from falling off or shifting during transport and ensuring reliable transport. The clamping and conveying channel connects with the clamping and side-throwing channel, achieving seamless process connection from transport to side-throwing. The stalk-cutting component is located below the clamping and side-throwing component, allowing the ginger stalks to be cut from the ginger rhizomes during the side-throwing process. The cut ginger rhizomes fall directly into the ginger rhizome output component below for outward transport, forming a continuous operation line of excavation, soil removal, clamping and conveying, side-throwing, stalk cutting, and output, avoiding efficiency reduction due to interruptions or malfunctions in any process.

[0016] The clamping and conveying chain employs a rotary chain mechanism, combined with a toothed chain and a dual-dimensional tensioning structure. The toothed chain achieves stable rotation through multiple sprockets, while the longitudinal tensioning structure specifically adjusts the longitudinal tension of the chain. The transverse tensioning structure uses tensioning telescopic rods to push tensioning rods against the inner ring of the toothed chain. Together, these two mechanisms ensure that the chain is always at the appropriate tension, preventing chain loosening during conveying and thus avoiding unstable clamping or displacement of the ginger seedlings. The tensioning rods are distributed along the chain's direction of movement, with both ends bent into arcs and located on both sides of the clamping and conveying channel. This allows them to smoothly conform to the inner ring of the chain for uniform tensioning without interfering with the conveying of the ginger seedlings. The angle steel of the transverse tensioning structure and the set chain support plate extend below the toothed chain to support it, further improving conveying stability and preventing chain sagging that could cause changes in the clamping gap, thereby reducing squeezing or collision damage to the ginger pieces caused by clamping fluctuations.

[0017] The multi-stage soil cleaning mechanism employs a gradient design of rubber plates, elastic rods, and brushes. The first stage uses rotating rubber plates to pat and tap the ginger pieces, utilizing the flexibility of rubber to peel off large clumps of soil without damaging the ginger's surface. The second stage uses rotating elastic rods to further remove the middle layer of soil from the crevices of the ginger pieces. The elastic rods' deformation adapts to the different shapes of the ginger pieces, avoiding harsh scraping. The third stage uses rotating brushes to sweep away any remaining fine soil and debris. This three-stage cleaning process, with increasing pressure, ensures thorough cleaning, prevents soil accumulation that could cause blockages, and protects the integrity of the ginger pieces through a gentle cleaning method. This resolves the contradiction of traditional soil cleaning methods that either fail to clean thoroughly or easily damage the ginger pieces.

[0018] The ginger output assembly consists of a first conveyor belt and a rotatable and foldable second conveyor belt. The first conveyor belt's conveyor frame, equipped with support rods, provides temporary fixing points for the second conveyor belt. The second conveyor belt rotates and folds relative to the first conveyor belt. During operation, it unfolds to receive the ginger pieces after cutting the vines, enabling continuous transport. When idle or during transport, it folds and secures itself to the support rods, significantly reducing the equipment's space occupation and improving transport convenience. The conveyor frame of the first conveyor belt prevents ginger pieces from falling from the sides, ensuring the integrity of the output process. The connection design of the two-stage conveyor belts avoids the impact of ginger pieces falling during output, further reducing the risk of damage. Simultaneously, the continuous transport mode ensures efficient connection of the overall operation process, preventing harvesting efficiency from being affected by output interruptions.

[0019] By using radar detection devices, tilt sensors, and angle sensors to perceive the terrain ahead, machine attitude, and digging depth, and combining this with digging resistance feedback, the depth of the digging shovel is dynamically adjusted to ensure that the set digging depth is maintained in undulating furrows. This ensures the complete removal rate of ginger rhizomes while avoiding power loss and component wear caused by excessive digging. Through the collaboration of radar, tilt sensors, and ultrasonic sensors, the controller can predict the terrain and adjust the ground clearance of the ginger seedling clamping and conveying device in real time to ensure that the clamping point height is constant. This ensures that the ginger seedlings are continuously and stably clamped, effectively preventing seedlings from breaking, loosening, or falling off due to undulating terrain, reducing damage during harvesting, and improving the stability and reliability of the operation. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0021] Figure 1 This is a three-dimensional schematic diagram of a ginger harvester according to one or more embodiments of the present invention; Figure 2 This is a perspective view of the excavation device according to one or more embodiments of the present invention; Figure 3 This is a three-dimensional schematic diagram of the ginger seedling clamping and conveying device according to one or more embodiments of the present invention; Figure 4 This is a three-dimensional enlarged schematic diagram of the ginger seedling clamping and conveying device according to one or more embodiments of the present invention; Figure 5 This is a partial cross-sectional schematic diagram of the ginger seedling clamping and conveying device according to one or more embodiments of the present invention, showing the supporting and conveying components. Figure 6 This is a side view of the ginger seedling clamping and throwing device and the seedling cutting device according to one or more embodiments of the present invention; Figure 7 This is a perspective view of the ginger seedling clamping and side-throwing device and the seedling cutting device according to one or more embodiments of the present invention; Figure 8 This is a top view of the ginger seedling clamping and side-throwing device and the seedling cutting device according to one or more embodiments of the present invention; Figure 9 This is a cross-sectional schematic diagram of a primary ginger block conveying device according to one or more embodiments of the present invention; Figure 10 This is a perspective view of a two-stage ginger block conveying device according to one or more embodiments of the present invention; Figure 11 This is a cross-sectional schematic diagram of a two-stage ginger block conveying device according to one or more embodiments of the present invention; Figure 12 This is a perspective view of the U-shaped groove device according to one or more embodiments of the present invention.

[0022] The components include: 1. Frame; 2. Walking assembly; 3. Power drive assembly; 4. Harvester frame; 5. Depth limiting wheel; 6. Dividing assembly; 7. Digging assembly; 71. Digging frame; 72. Angle sensor; 73. Digging shovel; 74. Chain-link seedling support belt; 75. Primary soil clearing structure; 76. Secondary soil clearing structure; 8. Ginger seedling clamping and conveying assembly; 81. Left clamping and conveying component; 811. Conveying bracket; 812. Sprocket; 813. Toothed chain; 814. Lateral tensioning assembly; 8141. Tensioning rod welding component; 8142. Tensioning sleeve; 8143. Spring; 81411. Tensioning guide rod; 81412. Tensioning rod. 81413, Angle Steel; 815, Longitudinal Tensioning Assembly; 816, Chain Carrier Plate; 82, Right Clamping Conveying Component; 83, Upper Connecting Frame; 84, Front Mounting Pin Welding; 85, Rear Mounting Pin Welding; 9, Multi-stage Soil Cleaning Mechanism; 10, Seedling Cutting Assembly; 101, Hydraulic Motor; 102, Moving Blade Mounting Frame; 103, Moving Blade Mounting Plate; 104, Fixed Blade Mounting Frame; 105, Fixed Blade; 106, Moving Blade; 11, Ginger Seedling Clamping Side Throwing Assembly; 111, Left Clamping Side Throwing Assembly; 112, Right Clamping Side Throwing Assembly; 113, Fixed Connecting Frame; 114, Seedling Pressing Pipe Assembly; 1111, Left Clamping Bracket; 1112, Double Chain 1113. Left clamping chain; 1114. Left longitudinal tension; 1115. Left transverse tension; 1116. Carrier wheel; 1117. Conveyor chain; 1118. Conveyor sprocket; 1119. Conveyor tension; 1121. Right clamping bracket; 1122. Right clamping sprocket; 1123. Right clamping chain; 1124. Right longitudinal tension; 1125. Right transverse tension; 1141. Pressing seedling welding component; 1142. Compression spring; 12. Ginger block primary conveyor assembly; 121. Mounting bracket; 122. First drive roller; 123. First driven roller; 124. First conveyor belt; 125. First flat belt 126. Pallet; 13. First chain drive assembly; 14. Secondary ginger block conveying assembly; 15. Pull rod; 16. Conveying frame; 17. Connecting frame; 18. Second drive roller; 19. Second passive roller; 10. Second conveyor belt; 11. Baffle; 12. Second chain drive assembly; 13. U-shaped trough assembly; 14. U-shaped trough plate; 15. Liner plate; 16. Edge guard round steel; 17. First reinforcing plate; 18. Second reinforcing plate; 19. Handle; 10. Control assembly; 10. Radar detection assembly; 11. Tilt sensor; 12. Ultrasonic sensor; 12. Driver's seat. Detailed Implementation

[0023] Example 1 In a typical embodiment of the present invention, such as Figures 1-12 As shown, a combined digging and pulling ginger harvester is presented.

[0024] Traditional ginger harvesters suffer from high rates of mechanical damage to ginger rhizomes. Using pure digging or forced conveying methods, they easily lead to breakage and skin damage of fragile rhizomes, severely impacting commercial value and shelf life. They also suffer from limited operational efficiency; incomplete soil clearing, unreliable clamping, or poor process coordination during harvesting result in frequent machine blockages and malfunctions, failing to leverage the high efficiency advantages of combined harvesting. Therefore, this embodiment provides a combined digging and pulling ginger harvester. It employs a combination of digging and clamping / lifting. The digging shovel 73 first loosens the soil through its rotating digging action, creating conditions for ginger vine extraction. Simultaneously, the clamping and conveying channel provides flexible clamping and lifting of the ginger vines, achieving stable extraction of the entire ginger plant. This avoids direct impact damage from the digging components, thus improving the integrity of the ginger rhizomes.

[0025] like Figures 1-12 As shown, the digging and pulling combined ginger harvester includes a walking component 2, a clamping and conveying component, a clamping and side-throwing component, a digging component 7, a vine-cutting component 10, and a ginger block output component.

[0026] like Figure 1 As shown, the walking assembly 2 is mounted on a frame 1, providing a mounting base and mobile support for all operating components, ensuring stable movement of the harvester in the field. The clamping and conveying assembly is mounted obliquely on the frame 1 via a floating bracket, which includes a front mounting pin weld 83 and a rear mounting pin weld 84, thereby floating the clamping and conveying assembly on the frame 1. The clamping and conveying assembly consists of two opposing clamping and conveying chains 1117 forming a clamping and conveying channel. The left clamping and conveying chain 1117 forms the left clamping and conveying component 81, and the right clamping and conveying chain 1117 forms the right clamping and conveying component 82, specifically used for clamping ginger seedlings and lifting and conveying them. The left clamping and conveying component 81 and the right clamping and conveying component 82 are connected by an upper connecting frame 83. The clamping and side-throwing assembly is mounted on the frame 1 behind the clamping and conveying assembly, forming a clamping and side-throwing channel that connects with the clamping and conveying channel, receiving the conveyed ginger seedlings and completing the side-throwing action. The digging component 7 is located below the clamping and conveying channel and is rotatably mounted on the frame 1. It has a digging shovel 73 at the front end and a multi-stage soil cleaning mechanism 9 at the rear, which is responsible for digging ginger and cleaning the soil. The vine cutting component 10 is arranged below the clamping and side throwing component and is equipped with a special blade for cutting ginger vines and ginger pieces. The ginger piece output component is installed below the vine cutting component 10, which receives the cut ginger pieces and transports them outward, completing the final stage of harvesting.

[0027] Traditional pure digging methods rely on the forced breaking of the soil by the digging components, which can easily lead to hard collisions with the ginger rhizomes. Forced conveying, on the other hand, can damage the ginger rhizomes due to improper clamping force or bumpy conveying paths. In this embodiment, a combined digging, clamping, and lifting mode is adopted. The digging shovel 73 first loosens the soil by rotating and digging, creating conditions for the extraction of ginger stalks. At the same time, the clamping and conveying channel provides flexible clamping and lifting action on the ginger stalks, achieving stable extraction of the whole ginger plant and avoiding direct impact of the digging components on the ginger rhizomes, which can cause damage. The relative arrangement of the clamping and conveying chains 1117 forms a flexible clamping space, which can reliably fix the ginger stalks without squeezing the ginger rhizomes. The inclined floating support can adapt to the fluctuations in the field terrain and maintain the stability of clamping and conveying. Subsequently, the ginger stalks are smoothly transferred through the clamping and side throwing channel, avoiding falling or collisions during the conveying process and reducing the risk of damage.

[0028] To address issues such as incomplete soil removal, unreliable clamping, and poor process integration, this embodiment constructs a continuous operation process through the coordinated cooperation of multiple components. The multi-stage soil removal mechanism 9 behind the digging shovel 73 can gradually remove the soil from the surface of the ginger rhizomes after digging, preventing soil adhesion that could cause blockages in subsequent stages. The dedicated clamping and conveying channel formed by the clamping and conveying chain 1117 can stably clamp the ginger vines, preventing them from falling off or shifting during transport and ensuring reliable transport. The clamping and conveying channel is directly connected to the clamping and side-throwing channel, allowing for seamless process integration from transport to side-throwing without manual intervention. The vine-cutting component 10 is located below the clamping and side-throwing component, allowing for the cutting of ginger vines and rhizomes during the side-throwing process. The cut ginger rhizomes fall directly into the ginger rhizome output component below for outward transport, forming a continuous operation line of digging, soil removal, clamping and conveying, side-throwing, vine-cutting, and output, avoiding efficiency reduction due to interruptions or malfunctions in any stage.

[0029] The combined digging and clamping / lifting mode replaces traditional pure digging or forced conveying, reducing hard collisions and compression between ginger pieces and components. Flexible clamping and stable conveying ensure the integrity of the ginger pieces, improving commercial value and storage life. Continuous operation eliminates problems of inefficient workflow, and a multi-stage soil clearing mechanism prevents soil blockage. Reliable clamping and conveying reduce downtime due to malfunctions, fully leveraging the high efficiency of combined harvesting. Floating supports allow the clamping and conveying components to adapt to changes in field terrain, maintaining operational stability and making it suitable for ginger harvesting in different plots. Integrating digging, soil clearing, conveying, side throwing, vine cutting, and output functions, it eliminates the need for manual intervention in intermediate stages, reducing labor intensity and increasing the automation level of harvesting operations.

[0030] Specifically, the harvester uses the frame 1 as its core support. The harvester frame 4 is hinged to the front of the frame 1 via a pivot, forming the mounting platform for the front working module; the walking assembly 2 is installed at the bottom of the frame 1; the power drive assembly 3 is arranged on one side of the upper part of the frame 1; the vine cutting assembly 10 is set in the middle of the frame 1, and the ginger vine clamping and side throwing assembly 11 is arranged above it; the control assembly 14 and the driver's seat 18 are fixedly installed on the other side of the frame 1; the rear of the frame 1 is sequentially equipped with a primary ginger block conveying assembly 12 and a secondary ginger block conveying assembly 13, the primary ginger block conveying assembly 12 being the first conveyor belt 124, and the secondary ginger block conveying assembly 13 being the second conveyor belt 136.

[0031] The walking assembly 2 adopts a tracked structure, specifically steel tracks combined with an HST (hydrostatic drive) drive axle, ensuring good passability and traction in soft, uneven ginger fields, and adapting to different ridge widths and furrow depths. The power drive assembly 3 uses a fully hydraulic drive system to provide power to the walking assembly 2 and all working components, achieving centralized and efficient power distribution. The harvester frame 4 is rotatably mounted at the front of the chassis 1, serving as the mounting base for front harvesting components such as the depth limiting wheel 5, the separating assembly 6, the ginger vine clamping and conveying assembly 8, the radar detection assembly 15, and the tilt sensor 16.

[0032] The depth-limiting wheel 5 is adjustablely mounted at the front end of the harvester frame 4. It works in conjunction with the digging component 7 to control the digging depth during operation and also supports the front of the machine and guides its movement. The dividing component 6 is symmetrically arranged on the upper front end of the frame 1. It includes a pair of dividing devices arranged opposite each other on the left and right. During operation, it is inserted into both sides of the ginger seedlings in the harvest row to separate the seedlings and weeds in the harvest row from those in the non-harvested rows. At the same time, it can straighten up the fallen seedlings and gather and guide the seedlings in the harvest row to the ginger seedling clamping and conveying component 8 at the rear.

[0033] The radar detection component 15 is fixedly installed at the front end of the harvester frame 4 and is used to scan the ground outline in front of the harvester to complete terrain detection of ridge top height and furrow depth. The tilt sensor 16 is fixedly installed on the harvester frame 4 and is used to measure the machine's pitch angle during harvesting operations.

[0034] like Figure 3 , Figure 4 and Figure 5 As shown, the clamping conveyor chain 1117 is a rotary chain mechanism, which includes a toothed chain 813, sprockets 812, a longitudinal tensioning structure, and a transverse tensioning structure. The toothed chain 813 is fitted with multiple sprockets 812 mounted on the conveyor bracket 811. At least one sprocket 812 is fitted with the longitudinal tensioning structure. The transverse tensioning structure includes a tensioning guide rod 81411 and a tensioning telescopic rod. One side of the tensioning guide rod 81411 is connected to the conveyor bracket 811 through the tensioning telescopic rod, and the other side abuts against the inner ring of the toothed chain 813, so as to work together with the longitudinal tensioning structure to tension the toothed chain 813.

[0035] The ginger stalk clamping and conveying assembly 8 is inclinedly arranged above the digging assembly 7 and adopts a floating installation structure. One end of it is rotatably mounted on the frame via a rotating shaft, and the other end is connected to a hydraulic cylinder, which drives the overall lifting and lowering by a hydraulic system. During operation, the toothed chain 813 clamps the entire ginger plant and conveys it upwards at an incline, finally delivering the plant to the ginger stalk clamping and side-throwing assembly 11 and the stalk cutting assembly 10 at the end.

[0036] The conveying support 811 adopts a rectangular tube structure formed by welding profiles, and multiple tensioning sleeve 8142 mounting holes are machined on the tube wall; the toothed chain 813 is used to clamp and convey seedlings; the chain support plate 816 is a long strip of sheet metal, with multiple plates set along the bottom of the outer chain to support the chain operation and prevent chain slippage; the sprocket 812 and the chain constitute a chain drive system. A transverse tensioning assembly 814 is disposed between the outer chain and the clamping bracket, with multiple sets arranged along the chain drive direction. The transverse tensioning assembly 814 mainly includes a tension rod welded component 8141, a tension sleeve 8142, and a spring 8143. The tension rod welded component 8141 consists of a tension guide rod 81411, an angle steel 81413, and a tension rod 81412. The tension sleeve 8142 is installed in the mounting hole of the conveyor bracket 811 with an interference fit. The spring 8143 is fitted onto the tension guide rod 81411. On 411, the tensioning guide rod 81411 and the tensioning sleeve 8142 are fitted with a clearance fit, and together with the spring 8143, they form a tensioning telescopic rod; the end of the tensioning guide rod 81411 away from the tensioning sleeve 8142 is connected to the tensioning rod 81412. Under the compression force of the spring 8143, the tensioning guide rod 81411 pushes the tensioning rod 81412 to continuously press against the chain pin, so as to realize the automatic lateral tensioning of the chain; the angle steel 81413 covers the outside of the chain support plate 816, which plays a role in enhancing the rigidity of the chain support.

[0037] The longitudinal tensioning assembly 815 includes a tensioning bracket and a tensioning wheel, which are connected to the clamping bracket by bolts. The longitudinal tensioning of the chain is achieved by adjusting its longitudinal installation position.

[0038] An ultrasonic sensor 17 is fixedly installed on the ginger seedling clamping and conveying assembly 8 to measure the instantaneous height of the clamping device above the ground. The radar detection assembly 15, ultrasonic sensor 17, and tilt sensor 16 work together during harvesting. The radar detection assembly 15 detects the terrain ahead in real time, while the tilt sensor 16 senses the terrain and machine attitude in real time, transmitting signals to the controller. The controller then calculates the required displacement of the ginger seedling clamping and conveying assembly 8 in advance and drives the hydraulic cylinder to perform the adjustment, ensuring that the height of the ginger seedling clamping and conveying assembly 8 above the ground remains constant regardless of terrain undulations, thus ensuring a consistent ginger seedling clamping height.

[0039] Tensioning rods 81412 are distributed along the moving direction of the toothed chain 813, with both ends bent towards the conveyor bracket 811 to form an arc shape. Tensioning rods 81412 are connected to tensioning telescopic rods with parallel axes via angle steel 81413. A chain support plate 816 is connected to the angle steel 81413. The angle steel 81413 and the chain support plate 816 extend together below the toothed chain 813 to support it. The chain support plate 816 is located between the flange plate at the bottom of the angle steel 81413 and the toothed chain 813. Tensioning rods 81412 are located between the conveyor brackets 811 corresponding to the two clamping conveyor chains 1117, distributed on both sides of the clamping conveyor channel.

[0040] The clamping conveyor chain 1117 is equipped with a toothed chain 813 and a dual-dimensional tensioning structure. The toothed chain 813 achieves stable rotation through multiple sprockets 812. The longitudinal tensioning structure specifically adjusts the longitudinal tension of the chain, while the transverse tensioning structure pushes the tensioning guide rod 81411 against the inner ring of the toothed chain 813 through the tension telescopic rod. The two work together to ensure that the chain is always in a proper tension state, avoiding chain loosening during the conveying process, which could lead to unstable clamping or displacement of the ginger seedlings. The tensioning guide rod 81411 is distributed along the chain's movement direction, with both ends bent into arcs and located on both sides of the clamping conveyor channel. It can smoothly fit against the inner ring of the chain to achieve uniform tension without interfering with the conveying of the ginger seedlings. The support plate 816 connected to the angle steel 81413 extends to the bottom of the toothed chain 813 to support the chain, improve conveying stability, and prevent the chain from sagging and causing changes in the clamping gap, thereby reducing the squeezing or collision damage to the ginger pieces caused by clamping fluctuations.

[0041] like Figure 6 , Figure 7 and Figure 8 As shown, the clamping and side-throwing assembly includes a horizontal conveying section and a side-throwing section distributed sequentially along the ginger seedling conveying direction. The horizontal conveying section includes two oppositely arranged side-throwing conveying chains 1117. The side-throwing conveying chain 1117 on the left constitutes the left clamping and side-throwing assembly 111, and the side-throwing conveying chain 1117 on the right constitutes the right clamping and side-throwing assembly, forming a horizontal conveying channel between them. The side-throwing conveying chain 1117 is also a rotary chain mechanism. The side-throwing section includes oppositely arranged inclined conveying chains 1117 and ginger seedling pressing tubes, forming a side-throwing channel between them.

[0042] The side-throwing clamping assembly is located behind the ginger seedling clamping and conveying assembly 8 and above the cutting assembly 10. It is used to horizontally clamp the entire ginger plant and provide stable support for subsequent cutting operations. This assembly consists of a side-throwing conveyor chain 1117 on the left and right sides, a fixed connecting frame 113, and a seedling pressing assembly 114. The overall structure of the ginger seedling clamping and side-throwing assembly 11 transitions from a horizontal conveying section to an inclined side-throwing section. When this assembly is working, after the plant is cut in the horizontal clamping section, it continues to be conveyed backward, and the inclined side-throwing section laterally throws the ginger seedlings to the ground, achieving centralized laying of the ginger seedlings. The side-throwing conveyor chain 1117 is also a rotary chain mechanism.

[0043] The left-side throwing conveyor chain 1117 includes a left clamping bracket 1111, a double sprocket 1112, a left clamping chain 1113, a left longitudinal tensioner 1114, a left transverse tensioner 1115, a support sprocket 1116, a conveyor sprocket 1118, a conveyor tensioner 1119, and a conveyor chain 1117. The right-side throwing conveyor chain 1117 includes a right clamping bracket 1121, a right clamping sprocket 1122, a right clamping chain 1123, a right longitudinal tensioner 1124, and a right transverse tensioner 1125.

[0044] The seedling pressing tube assembly 114 is assembled from a pressing tube welding component 1141 and a clamping spring 1142. The pressing tube welding component 1141 is formed by welding a seedling pressing tube and a pressing tube guide. The seedling pressing tube is made of round steel, and the pressing tube guide is a round tube structure. The pressing tube guide and the mounting hole of the seedling pressing tube assembly 114 on the right clamping bracket are interference fit. The seedling pressing tube of the seedling pressing tube assembly 114 is pressed tightly against the outside of the pin of the right clamping chain 1123 to clamp the seedling. The pressing tube guide is equipped with a clamping spring 1142 to provide a continuous and stable clamping force. The seedling pressing tube assembly 114 extends from the horizontal clamping section to the inclined side throwing section to smoothly guide the cut ginger seedlings from the horizontal conveying direction to the inclined side throwing direction.

[0045] like Figure 6 As shown, the seedling cutting assembly 10 is fixedly installed below the horizontal clamping section mounting frame of the ginger seedling clamping and throwing assembly 11, located at the front end of the assembly. Its structure includes a hydraulic motor 101, a moving blade mounting frame 102, a moving blade mounting plate 103, a fixed blade mounting frame 104, a fixed blade 105, and a moving blade 106.

[0046] The moving blade 106 adopts a disc blade structure and rotates continuously under the drive of the hydraulic motor 101; the fixed blade 105 is fixedly installed on the fixed blade mounting bracket 104, forming a cutting pair with the moving blade 106. When this component is working, the upper stem of the ginger plant is held and fixed by the ginger seedling clamping and conveying component 8 and the ginger seedling clamping and side throwing component 11, while the lower stem of the plant enters the cutting area of ​​the seedling cutting component 10 during the conveying process; the high-speed rotating moving blade 106 and the fixed blade 105 work together to complete the stem cutting operation, achieving complete separation of the seedling and ginger piece; the cut ginger piece then falls naturally to the ginger piece primary conveying component 12 located directly below the seedling cutting component 10.

[0047] The clamping and side-throwing assembly achieves a seamless transition from clamping and conveying ginger seedlings to side-throwing and cutting through a seamless design connecting the horizontal conveying section and the side-throwing section. Two opposing side-throwing conveyor chains 1117 in the horizontal conveying section form a horizontal conveying channel, receiving and smoothly conveying the ginger seedlings from the clamping conveyor channel. The side-throwing section, through relatively arranged inclined conveyor chains 1117 and ginger seedling pressing tubes, forms a side-throwing channel. The inclined conveyor chains 1117 provide the side-throwing power, while the ginger seedling pressing tubes restrict the conveying trajectory of the ginger seedlings, preventing them from falling off or becoming disoriented during the side-throwing process. This segmented design ensures the continuity of ginger seedling conveying and, through the directional guidance of the side-throwing channel, ensures that the ginger seedlings fall precisely into the cutting assembly 10 below, avoiding downtime or damage to ginger pieces due to poor process connection and improving operational efficiency.

[0048] like Figure 1 and Figure 2 As shown, the multi-stage soil cleaning mechanism 9 includes a primary soil cleaning structure 75, a secondary soil cleaning structure 76, and a tertiary soil cleaning structure. The primary soil cleaning structure 75 includes a rotating rubber plate to beat and hold the ginger pieces held and conveyed by the clamping and conveying assembly. The secondary soil cleaning structure 76 includes a rotating elastic rod. The tertiary soil cleaning structure includes a rotating brush.

[0049] The digging component 7 is rotatably mounted on the harvester frame 4 via a pivot, and works in conjunction with the ginger seedling clamping and conveying component 8 to complete the digging and pulling of the entire ginger plant. The digging component 7 includes a digging frame 71, a digging shovel 73, an angle sensor 72, a chain-type seedling support belt 74, a primary soil clearing structure 75, and a secondary soil clearing structure 76.

[0050] The excavating shovel 73 is mounted at the front of the excavating frame 71. An angle sensor 72 is installed on the frame for indirectly measuring the excavation depth. The excavation angle of the excavating shovel 73 is adjusted by a hydraulic cylinder. The rodless chamber of this hydraulic cylinder is equipped with a pressure sensor for real-time detection of excavation resistance. The excavating assembly 7 is equipped with an intelligent control system. It collects terrain data through the radar detection assembly 15, combines the depth signal measured by the angle sensor 72 with the resistance signal detected by the pressure sensor, and transmits the multi-source data to the controller. Based on a comprehensive judgment of the preset excavation depth value and real-time feedback data, the controller drives the hydraulic cylinder to automatically adjust the excavation depth, effectively reducing excavation damage while ensuring the excavation efficiency.

[0051] The chain-link seedling support belt 74 is longitudinally positioned in the middle of the excavation frame 71 to support the ginger plants that have been dug up and to achieve initial separation of large clumps of soil during transportation.

[0052] The primary soil-cleaning structure 75 is rotatably mounted on the rotating shaft of the chain-link seedling support belt 74. Its striking components are made of plate-shaped rubber and are used to break up and remove large clods of soil attached to the ginger rhizomes. The secondary soil-cleaning structure 76 is rotatably mounted on the rotating shaft at the rear end of the digging assembly 7. It adopts an elastic striking wheel structure with several rod-shaped elastic striking rods circumferentially arranged on the wheel axle for secondary soil-cleaning of the ginger rhizomes, further breaking up residual soil clods. The digging assembly 7 is lifted off the ground by a hydraulic cylinder when not in operation and lowered to the working position by a hydraulic cylinder during harvesting. The tertiary soil-cleaning structure is rotatably mounted on the frame 1 via a rotating shaft and is located at the rear of the secondary soil-cleaning structure 76. The core soil-cleaning component of this assembly adopts a brush roller structure with densely distributed flexible bristles on its surface. The brush roller rotates under power and uses the flexible bristles to penetrate deep into the depressions and root crevices of the ginger rhizomes for cleaning, achieving a final fine cleaning of the residual soil on the surface of the ginger rhizomes.

[0053] The separating component 6 at the front end of the clamping and conveying assembly can separate ginger vines from weeds in the field in advance, preventing weeds from mixing into the clamping and conveying channel and causing blockages. At the same time, it provides guidance for the ginger vines to accurately enter the clamping channel. The depth-limiting wheel 5, together with the ultrasonic sensor 17, can measure the height of the front end of the assembly from the ground in real time. Combined with the radar detection component 15 and the tilt sensor 16 on the chassis 1, it can accurately obtain terrain information and machine attitude, allowing the clamping and conveying assembly to flexibly adjust its height and tilt angle through the floating bracket to adapt to undulating terrain. This avoids sudden changes in clamping force or improper digging depth due to uneven ground, reducing damage to ginger pieces. The terrain and attitude monitoring by the radar and tilt sensor 16 can also predict terrain changes in advance, providing a basis for adjusting the movements of the digging component 7 and the clamping and conveying assembly, further improving operational stability.

[0054] The multi-stage soil cleaning mechanism 9 adopts a gradient design of rubber plate-elastic rod-brush. The first-stage soil cleaning uses a rotating rubber plate to pat the ginger pieces, utilizing the flexibility of rubber to quickly peel off large clumps of soil without damaging the ginger's surface. The second-stage soil cleaning uses a rotating elastic rod to further remove the middle layer of soil from the gaps in the ginger pieces. The elastic deformation of the elastic rod can adapt to the differences in the shape of the ginger pieces, avoiding hard scraping. The third-stage soil cleaning uses a rotating brush to thoroughly remove residual fine soil and debris. The three-stage soil cleaning is progressive, with the intensity decreasing from strong to weak. This ensures thorough soil cleaning, avoids soil accumulation that could cause blockages in the conveyor system, and protects the integrity of the ginger pieces through a flexible soil cleaning method. This solves the contradiction of traditional soil cleaning methods that either fail to clean the soil thoroughly or easily damage the ginger pieces.

[0055] like Figures 9-12 As shown, the ginger chunk output assembly includes a first conveyor belt 124 and a second conveyor belt 136. The conveyor belt bracket corresponding to the second conveyor belt 136 is rotatably mounted at the end of the conveyor belt bracket corresponding to the first conveyor belt 124. A conveyor frame 132 is installed on the side of the first conveyor belt 124, and the conveyor frame 132 is provided with a support rod. A handle 1396 is installed on the side of the second conveyor belt 136. The second conveyor belt 136 can rotate and fold relative to the first conveyor belt 124, and the handle 1396 is temporarily fixed to the support rod.

[0056] Specifically, the ginger output assembly consists of a first conveyor belt 124 and a rotatable and foldable second conveyor belt 136. The conveyor frame 132 of the first conveyor belt 124, equipped with a support rod, provides a temporary fixing point for the second conveyor belt 136. The second conveyor belt 136 can rotate and fold relative to the first conveyor belt 124 via a side handle 1396. During operation, it unfolds to receive ginger pieces after cutting the vines, achieving continuous conveying. When idle or during transportation, it is folded and fixed to the support rod, significantly reducing the space occupied by the equipment and improving the convenience of transportation. The conveyor frame 132 of the first conveyor belt 124 can prevent ginger pieces from falling from the side, ensuring the integrity of the output process. The connection design of the two-stage conveyor belts avoids the impact of ginger pieces falling during the output stage, further reducing the risk of damage. At the same time, the continuous conveying mode also ensures the efficient connection of the overall operation process, avoiding the impact of output interruption on harvesting efficiency.

[0057] Specifically, the ginger output assembly includes a primary ginger conveying assembly 12 and a secondary ginger conveying assembly 13. The primary ginger conveying assembly 12 is fixedly installed on the main structure of the frame 1 and located directly below the cutting assembly 10. This assembly is arranged horizontally along the machine's forward direction and is used to receive and convey the ginger pieces separated by the cutting assembly 10. The primary ginger conveying assembly 12 specifically includes: a mounting bracket 121, a first drive roller 122, a first passive roller 123, a first conveyor belt 124, a first chain drive assembly 126, and a first flat belt support plate 125. The first conveyor belt 124 is made of PV (polyvinyl chloride) material, which effectively buffers the impact of falling ginger pieces and reduces mechanical damage due to its flexibility; the first drive roller 122 and the first passive roller 123 are respectively located at the beginning and end of the conveying assembly; the first chain drive assembly 126 provides power transmission for the conveying system. The first conveyor belt 124 is wrapped around the first drive roller 122 and the first passive roller 123. Driven by the first drive roller 122, it circulates and smoothly transports the ginger pieces to the subsequent secondary ginger piece conveying assembly 13, thus completing the primary transfer operation of the ginger pieces.

[0058] The secondary ginger block conveying assembly 13 is located behind the primary ginger block conveying assembly 12 and is arranged at an angle downwards. Its first end is fixedly connected to the frame 1, and its middle section is connected to the frame 1 via an adjustable tie rod 131. By adjusting the length of the tie rod 131, the tilt angle of the entire conveying assembly can be changed, thereby controlling the final landing height of the ginger blocks. This assembly consists of a conveyor belt assembly and a U-shaped trough assembly 139. The conveyor belt assembly includes two tie rods 131, two conveyor frame edges 132, multiple connecting frames 133, a second drive roller 134, a second passive roller 135, a second conveyor belt 136, two baffles 137, and a second chain drive assembly 138. Two support rods are welded on the conveyor frame edges 132, and arc-shaped slots are provided above the support rods. The U-shaped trough assembly 139 is a U-shaped sheet metal welded component, mainly composed of a U-shaped trough plate 1391, a liner plate 1392, a protective round steel 1393, a first reinforcing plate 1394, and a second reinforcing plate 1395. 395, two handles 1396 are welded together; the U-shaped channel plate 1391 is a thin-walled sheet metal bending part; the liner plate 1392 is symmetrically welded to the inner side of the U-shaped channel plate 1391, and the first reinforcing plate 1394 and the second reinforcing plate 1395 are respectively welded to the front and rear ends of the outer side of the U-shaped channel plate 1391; the liner plate 1392, the first reinforcing plate 1394, and the second reinforcing plate 1395 can improve the strength of the U-shaped channel assembly 139 and prevent deformation while minimizing weight; the edge-protecting round steel 1393 is welded to the upper edge of the U-shaped channel plate 1391 to prevent the sharp edges of the U-shaped channel assembly 1399 from scratching the workers.

[0059] The conveyor belt assembly and the U-shaped trough assembly 139 are connected by bolts, achieving a detachable connection. The front end of the U-shaped assembly has an arc-shaped groove structure that engages with the outer periphery of the conveyor belt at the end of the conveyor belt assembly. By loosening the connecting bolts, the U-shaped trough assembly 139 can be flipped around the connection point. When the equipment length needs to be shortened, the U-shaped trough assembly 139 is flipped upwards, and its two handles 1396 can be accurately fitted onto the support rods of the conveyor belt assembly for fixation. This design effectively shortens the overall longitudinal dimension of the machine, significantly improving the harvester's turning and maneuvering capabilities in fields and along roadsides.

[0060] The control assembly 14 is fixedly mounted on the operating platform on one side of the chassis 1, located directly in front of the driver's seat 18, forming the human-machine interface control center of the entire machine. The control assembly 14 includes three core components: a controller, a joystick, and a control panel. The controller, as the central processing unit, is responsible for receiving and processing the operational data collected by various sensors and outputting corresponding control commands. The joystick is used to manually control the harvester's movement and various working parts. The control panel integrates a display unit and an input unit, used to display the machine's working status in real time and allow the operator to set and adjust various operational parameters. The driver's seat 18 is rigidly connected and fixedly mounted on the operating platform on the same side of the chassis 1, forming an ergonomic operating area with the control assembly 14, providing the operator with a stable working position. Through this layout, the operator can conveniently monitor the harvester's working status and adjust parameters in real time from the driver's seat 18 via the control assembly 14, ensuring the safety and efficiency of the operation.

[0061] Example 2 In another typical embodiment of the present invention, such as Figures 1-12 As shown, a working method for a digging-pulling combined ginger harvester is given. Using the digging-pulling combined ginger harvester as described in Example 1, the method includes the following steps: The walking component 2 drives the frame 1 forward, and the digging shovel 73 of the digging component 7 rotates close to the ground to dig deep into the soil around the ginger roots. At the same time, the clamping conveyor chain 1117 of the clamping conveyor component clamps the ginger seedling. Through the lifting action and the digging action of the digging shovel 73, the whole ginger plant is completely extracted from the soil. The extracted whole ginger plant enters the clamping and conveying channel formed by two clamping and conveying chains 1117 and is conveyed upward along the inclined floating support. During the conveying process, the multi-stage soil cleaning mechanism 9 behind the excavating shovel 73 works simultaneously to gradually remove the soil attached to the ginger roots. After the soil is removed, the ginger seedlings are transported to the connecting clamping and side-throwing channel, where they are clamped and transported by the clamping and side-throwing assembly. At this time, the seedling cutting assembly 10 below is activated, and the blades separate the ginger seedlings from the ginger pieces, thus separating the ginger seedlings from the ginger pieces. The ginger seedlings are discharged from the end of the clamping and side-throwing assembly. After being cut, the ginger pieces fall to the ginger piece output component below, where they are received and transported, completing the entire harvesting process.

[0062] In this embodiment, by using the clamping and side-throwing component set above the cutting component 10, the ginger pieces and ginger stalks can be separated by the cutting component 10 in the same operation process. Then, the component throws the cut ginger stalks laterally to a designated area for centralized laying, while the ginger pieces are cut and laid directly on the ridge surface. This realizes the automated and mechanized separation and directional collection of ginger stalks and ginger pieces, solving the problem of mixed stalks and pieces in traditional harvesting, which requires a lot of manpower for sorting later.

[0063] The walking component 2 uses steel tracks and an HST hydraulic drive axle, which has low ground pressure and high traction, making it particularly suitable for soft, uneven fields in ginger planting areas and providing strong passability. The ginger block conveying adopts a two-stage conveying structure, which extends the conveying length and reduces the drop height of the ginger blocks, effectively reducing fall damage. In addition, the end of the ginger block secondary conveying component 13 is designed with a horizontally reversible and foldable structure, which can shorten the overall length of the machine with simple operation, greatly facilitating the machine's turning and reversing at the edge of the field and improving the mobility and convenience of field operations.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A combined uprooting and digging ginger harvester, characterized by, The ginger harvesting machine comprises a walking assembly, a clamping conveying assembly, a clamping side throwing assembly, a digging assembly, a cutting assembly and a ginger block output assembly. The clamping conveying assembly is obliquely installed on the frame through a floating support and comprises two oppositely arranged clamping conveying chains, and a clamping conveying channel for clamping and conveying ginger shoots is formed between the two clamping conveying chains. The clamping side throwing assembly is installed on the frame behind the clamping conveying assembly and forms a clamping side throwing channel for clamping and throwing ginger shoots, and the clamping side throwing channel is connected with the clamping conveying channel. The digging assembly is located below the clamping conveying channel and is rotatably installed on the frame, and a digging shovel is arranged at the front end of the digging assembly for lifting and pulling ginger shoots through digging action in cooperation with the clamping conveying channel to extract whole ginger shoots, and a multi-stage soil cleaning mechanism is arranged behind the digging shovel. The cutting assembly is arranged below the clamping side throwing assembly and is provided with a cutter for cutting ginger shoots and ginger blocks. The ginger block output assembly is installed below the cutting assembly to receive and convey the cut ginger blocks. The clamping conveying chain is a rotary chain mechanism, which comprises a toothed chain, a sprocket, a longitudinal tensioning structure and a transverse tensioning structure.

2. The combination digger and puller ginger harvester as claimed in claim 1, wherein, The clamping side throwing assembly comprises a horizontal conveying section and a side throwing section which are arranged in sequence along the conveying direction of ginger shoots.

3. The combination digger and puller ginger harvester of claim 2 wherein, The tensioning rod is arranged along the moving direction of the toothed chain, and the two ends thereof are bent to form an arc shape towards one side of the conveying support.

4. The combination digger and puller ginger harvester as claimed in claim 2 or 3, wherein, The tensioning rod is connected with the transversely arranged tensioning telescopic rods through the angle steel connecting shaft, and the angle steel is provided with a chain supporting plate.

5. The combination digger and puller ginger harvester of claim 4 wherein, The tensioning rod is arranged between the conveying supports corresponding to the two clamping conveying chains and is distributed on both sides of the clamping conveying channel.

6. The combination digger and puller ginger harvester of claim 1 wherein, The front end of the clamping conveying assembly is provided with a weeding assembly, a depth limiting wheel and an ultrasonic sensor.

7. The combination digger and puller ginger harvester of claim 1 wherein, The multi-stage soil cleaning mechanism comprises a first-stage soil cleaning structure, a second-stage soil cleaning structure and a third-stage soil cleaning structure.

8. The combination digger and puller ginger harvester of claim 1 wherein, The ginger block output assembly comprises a first conveying belt and a second conveying belt.

9. A working method of a combined uprooting and pulling ginger harvester, using the combined uprooting and pulling ginger harvester according to any one of claims 1 to 8, characterized in that, The ginger harvesting machine comprises a walking assembly, a clamping conveying assembly, a clamping side throwing assembly, a digging assembly, a cutting assembly and a ginger block output assembly. The walking assembly drives the vehicle frame to move forward, the digging shovel of the digging assembly rotates in close contact with the ground, digs the soil around the ginger root system in the soil, and at the same time, the clamping conveying chain of the clamping conveying assembly clamps the ginger sprout, cooperates with the digging action of the digging shovel through the lifting action, and extracts the whole ginger from the soil in an integrated manner; The extracted whole ginger enters the clamping conveying channel formed by the two clamping conveying chains, is conveyed upwards along the inclined floating support, and in the conveying process, the multi-stage soil cleaning mechanism behind the digging shovel works synchronously, and gradually removes the soil attached to the ginger root system; The ginger sprout after soil removal is conveyed to the connected clamping side throwing channel, is clamped and conveyed by the clamping side throwing assembly, at this time, the cutting assembly below is started, the cutter cuts the ginger sprout and ginger block, and the separation of the ginger sprout and the ginger block is realized; and the ginger sprout is discharged from the end of the clamping side throwing assembly; The cut ginger block falls to the ginger block output assembly below, is received and conveyed by the assembly, and the whole harvesting process is completed.

10. The method of working the ginger lifter-combination harvester according to claim 9, wherein, The ginger block output assembly adopts a two-stage conveying structure, and the second-stage conveying structure can be turned over and folded for storage.

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