Hand-held ginger harvester

Abstract

The invention relates to a walking type ginger harvester which comprises a seedling lifting and gathering device, a seedling pulling and feeding device, a self-adaptive excavating and soil shaking device, a flexible clamping and pulling device, a soil cleaning and impurity removing device and a stem cutting and directional seedling throwing device. The seedling lifting and gathering device lifts and gathers the ginger plants; the self-adaptive digging and soil shaking device is used for digging ginger, shaking soil and removing impurities; the seedling pulling and feeding device automatically feeds under the action of a pulling finger; the flexible clamping and pulling device pulls and conveys the ginger to the inclined upper part; the soil cleaning and impurity removing device is used for flexibly removing soil of the ginger bulbs; the stem cutting and directional seedling throwing device is used for shearing stems; the ginger harvester can finish operations such as seedling lifting and gathering, seedling pulling and feeding, digging and soil shaking, clamping and pulling, soil cleaning and impurity removing, stem cutting and directional seedling throwing and the like of ginger at a time; a method of combining flexible clamping and floating type impurity removal, a three-order arc-shaped digging shovel, a fixed soil screening grid bar and a vibration soil screening grid bar is adopted, broken stems of ginger are reduced, soil removal is more thorough, and the breakage rate and the breakage rate of ginger bulbs are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a walk-behind ginger harvester. Background Art

[0002] Ginger has a long history of cultivation in my country. It is a dual-purpose crop for medicine and food, and has pharmacological effects such as anti-tumor, antioxidant, antiemetic, anti-inflammatory, and antibacterial. my country's cultivated area accounts for about 1 / 2 of the world's total, and its annual total output accounts for about 2 / 3 of the world's total. It is mainly distributed in Shandong, Yunnan, and Hunan, which has promoted the adjustment of regional industrial structure and accelerated the pace of farmers' wealth. However, traditional ginger harvesting mainly relies on manual labor, which is labor-intensive, inefficient, and costly, and it is difficult to meet the needs of the industrial development of ginger. In the face of changing market demands and increasingly severe labor shortages, it is particularly important to develop an efficient, low-loss, and highly adaptable ginger harvester.

[0003] Chinese patent application number 201520813487.5 provides a small excavation-type ginger harvester, which loosens the soil by shaking a vibrating loosening knife, saving manpower, but the breakage and crushing rates of the ginger are high.

[0004] The Chinese patent application number 201721279577.6 provides a segmented ginger harvester, which reduces the breakage rate of ginger and improves the mechanization level of ginger harvesting, but still requires manual pulling out, stem cutting and other processes.

[0005] The Chinese patent with application number 201910035187.1 provides a ginger combine harvester, which realizes the mechanized operation of ginger harvesting and improves the speed and work efficiency of ginger harvesting. However, the impurity rate of the harvested ginger is high, the machine is large in size, and it is not easy to operate, and there are still some shortcomings. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a hand-held ginger harvester, which can complete the operations of supporting and gathering the ginger grains, pulling the grains for feeding, digging and shaking the soil, clamping and pulling out, clearing the soil and removing weeds, cutting the stems and directional seedling throwing, etc. at one time.

[0007] The present invention is realized by the following technical scheme, providing a walk-behind ginger harvester, comprising a chassis frame, an engine assembly and crawler walking assemblies located on both sides of the chassis frame; It also includes a rice-supporting and gathering device, a rice-pushing and feeding device, and an adaptive digging and soil-shaking device; The straw-raising and gathering device comprises two lower support plates of the straw-raising and gathering device arranged side by side on the left and right, and a circulating straw-raising chain is arranged on the lower support plate of the straw-raising and gathering device, and a plurality of straw-raising fingers are fixedly connected to the straw-raising chain, and the sides of the two straw-raising chains close to each other move upward and the distance between them gradually decreases, so as to raise the fallen ginger plants; The reed-pulling feeding device is located behind the reed-pulling and gathering device, and includes two lower support plates of the reed-pulling and feeding device arranged side by side. A circulating feeding chain is arranged on the lower support plates of the reed-pulling and feeding device, and a plurality of feeding fingers are fixedly connected to the feeding chain. The sides of the two feeding chains close to each other move backward and upward, and the distance between them gradually decreases. The adaptive excavation and soil shaking device is located below the reed-pulling and feeding device, and includes an adaptive excavation and soil shaking device support plate fixedly connected to the chassis frame and a three-step arc-shaped excavation shovel fixedly connected to the lower end of the adaptive excavation and soil shaking device support plate, wherein the front and rear ends of the three-step arc-shaped excavation shovel are both inclined downward.

[0008] As an optimization, the adaptive excavation and soil shaking device also includes a vibrating screen soil grid device, which includes a screen soil grid hinged at the rear end of the three-stage arc-shaped excavation shovel and a screen soil swing mechanism that drives the rear end of the screen soil grid to swing up and down.

[0009] As an optimization, the soil screening swing mechanism includes a hydraulic motor fixedly connected to a support plate of the adaptive excavation and soil shaking device, the rotating shaft of the hydraulic motor is connected to a rocker arm through an eccentric bearing, and the rocker arm is hinged to the soil screening bars.

[0010] As an optimization, the adaptive excavation and soil shaking device also includes an adaptive depth limiting wheel device, which includes a depth limiting wheel fixing frame fixedly connected to the front end of the adaptive excavation and soil shaking device support plate, a depth limiting wheel adjustment plate hinged at the front end of the depth limiting wheel fixing frame, and a hydraulic rod driving the depth limiting wheel adjustment plate to swing up and down, and a depth limiting wheel is installed at the lower end of the depth limiting wheel adjustment plate.

[0011] As an optimization, it also includes a flexible clamping and pulling device located behind the straw feeding device, the flexible clamping and pulling device includes two flexible clamping and pulling device lower support plates arranged side by side on the left and right, and a circulating clamping and pulling chain is provided on the lower support plate of the flexible clamping and pulling device, and the two clamping and pulling chains are close to each other and move backward and upward.

[0012] As an optimization, a floating support frame mechanism is installed on the lower support plate of the flexible clamping and extracting device, and the floating support frame mechanism includes a floating support plate fixedly connected to the lower support plate of the flexible clamping and extracting device and a support frame located between the floating support plate and the clamping and extracting chain, and a compression spring is installed between the support frame and the floating support plate.

[0013] As an optimization, it also includes a soil cleaning and debris removing device located below the flexible clamping and extracting device, the soil cleaning and debris removing device includes two soil cleaning support frames respectively hinged under the lower support plates of the two flexible clamping and extracting devices, the soil cleaning support frames are equipped with debris removing brushes and a driving motor for driving the debris removing brushes to rotate, a fixed welding plate is fixedly connected to the lower support plate of the flexible clamping and extracting device, a floating rod passing through the fixed welding plate is fixedly connected to the soil cleaning support frame, a floating spring is installed on the fixed welding plate, and the floating spring pushes the two soil cleaning support frames to swing inward.

[0014] As an optimization, it also includes a stem-cutting directional seedling throwing device located behind the flexible clamping and extracting device, the stem-cutting directional seedling throwing device includes two lower support plates of the stem-cutting directional seedling throwing device arranged side by side on the left and right, and a circulating seedling throwing chain is provided on the lower support plates of the stem-cutting directional seedling throwing device. The two sides of the seedling throwing chains that are close to each other are fitted together and move backwards, and a rotating disc knife is installed on the lower support plate of any stem-cutting directional seedling throwing device.

[0015] As an optimization, the rear end of the lower support plate of the stem cutting and directional seedling throwing device is fixedly connected to the directional seedling throwing frame, and the directional seedling throwing frame is adjusted left and right on the arc guide groove and fastened by a nut.

[0016] As an optimization, the crawler walking assembly is a triangular crawler, and the flexible clamping and extracting device is located below the chassis frame.

[0017] The beneficial effects of the present invention are: 1. This harvester can complete the ginger rice gathering, rice pulling and feeding, digging and shaking the soil, clamping and pulling, soil cleaning and weed removal, stem cutting and directional seedling throwing at one time; 2. The rice-pulling feeding device and the adaptive digging and shaking soil device work together to increase the feeding rate and reduce the leakage rate. The feeding fingers feed the ginger plants in an orderly manner, increase the thrust on the ginger plants, and improve the feeding accuracy and feeding rate.

[0018] 3. The flexible clamping and conveying device works stably, and the floating structure design provides flexible clamping force, which reduces the stem breakage rate of ginger during the clamping and conveying process and further improves the extraction effect.

[0019] 4. The combination of a three-stage arc-shaped digging shovel, fixed soil screening bars and vibrating soil screening bars is used to cause less damage to the ginger bulbs during digging, which is beneficial to reduce resistance, better break up soil ridges and prevent soil accumulation; 5. The floating flexible soil cleaning and weed removal device reduces the damage to the ginger bulbs. It can realize floating weed removal according to the size of the ginger bulbs, further improving the soil cleaning and weed removal effect. 6. The ginger plants are cut into stems under the dual support of the flexible clamping and conveying device and the stem cutting and directional seedling throwing device, and the ginger seedlings are continuously transported and thrown to complete the seedling throwing, which reduces the damage to the bulbs and improves the harvesting efficiency; 7. All structures of the present invention can be disassembled, easy to assemble, stable power output, low breakage rate and fragmentation rate, high degree of mechanization and automation, good universal performance, and can adapt to various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a left side view of the present invention; Figure 3 It is a schematic structural diagram of the device for supporting and gathering crops of the present invention; Figure 4 It is a structural schematic diagram of the straw-pulling and feeding device of the present invention; Figure 5 It is a schematic diagram of the structure of the adaptive excavation and soil shaking device of the present invention; Figure 6 It is a structural schematic diagram of the adaptive depth limiting wheel device of the present invention; Figure 7 is a top view of the adaptive depth limiting wheel device of the present invention; Figure 8 It is a schematic diagram of the structure of a three-stage arc-shaped digging shovel of the present invention; Fig. 9 It is a schematic diagram of the structure of the soil grid bar device of the vibrating screen of the present invention; Fig.10 It is a left view of the soil grid bar device of the vibrating screen of the present invention; Fig.11 It is a schematic diagram of the structure of the flexible clamping and extracting device of the present invention; Fig.12 It is a schematic diagram of the structure of the soil cleaning and impurity removing device of the present invention; Fig.13 It is a schematic structural diagram of the stem cutting and directional seedling throwing device of the present invention; Fig.14 This is a left view of the stem cutting and directional seedling throwing device of the present invention; As shown in the figure: 1. Grain-lifting and gathering device, 101. Driving sprocket Ⅰ, 102. Upper support plate of grain-lifting and gathering device, 103. Lower support plate of grain-lifting and gathering device, 104. Grain-lifting finger, 105. Grain-lifting chain, 106. Grain-lifting and gathering device support frame, 107. Driven sprocket Ⅰ, 2. Reducer assembly, 3. Chassis frame, 4. Grain-lifting and feeding device, 401. Feeding chain, 402. Feeding finger, 403. Driven sprocket Ⅱ, 404. Upper support plate of grain-lifting and feeding device, 405. Connecting shaft, 406. Driving sprocket Ⅱ, 407. Lower support plate of grain-lifting and feeding device , 5. Adaptive excavation and soil shaking device, 501. Adaptive depth limiting wheel device, 502. Three-stage arc excavation shovel device, 503. Vibrating screen soil grid device, 504. Depth limiting wheel, 505. Hydraulic rod, 506. Depth limiting wheel adjustment plate, 507. Depth limiting wheel fixing frame, 508. Adaptive excavation and soil shaking device support plate, 509. Fixed screen soil grid, 510. Three-stage arc excavation shovel, 511. Hydraulic motor, 512. Welding plate, 513. Screen soil grid, 514. Eccentric bearing, 515. Rocker arm, 6. Engine assembly, 7. Gearbox assembly, 8 , crawler walking assembly, 9, electric control assembly, 10, soil cleaning and debris removal device, 1001, driving motor, 1002, motor reducer, 1003, coupling, 1004, hinge joint, 1005, soil cleaning support frame, 1006, debris removal brush, 1007, fixed welding plate, 1008, floating spring, 1009, floating rod, 1010, roller shaft, 11, flexible clamping and extraction device, 1101, driven sprocket III, 1102, clamping and extraction chain, 1103, support frame, 1104, upper support plate of flexible clamping and extraction device, 1105 , driving sprocket III, 1106, lower support plate of flexible clamping and extracting device, 1107, fixed plate, 1108, compression spring, 1109, floating support plate, 12, stem-cutting directional seedling-throwing device, 1201, driving sprocket IV, 1202, stem-cutting gear, 1203, upper support plate of stem-cutting directional seedling-throwing device, 1204, driven sprocket IV, 1205, stem-cutting knife shaft, 1206, seedling-throwing chain, 1207, lower support plate of stem-cutting directional seedling-throwing device, 1208, disc knife, 1209, directional seedling-throwing frame, 1210, universal joint, 1211, rotating shaft. DETAILED DESCRIPTION

[0021] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0022] like Figures 1 to 14As shown, the walk-behind ginger harvester of the present invention comprises a chassis frame 3, and an engine assembly 6, a gearbox assembly 7, an electronic control assembly 9, a reducer assembly 2 and a crawler traveling assembly 8 all mounted on the chassis frame 3. The crawler traveling assembly 8 is a triangular crawler, which is convenient for increasing the ground clearance of the chassis frame 3. The engine assembly 6 drives the crawler traveling assemblies 8 on both sides through the gearbox assembly 7 and the reducer assembly 2 to achieve walking.

[0023] It also includes a rice grain supporting and gathering device 1, a rice grain pulling and feeding device 4, an adaptive digging and soil shaking device 5, a flexible clamping and extracting device 11, a soil clearing and weeding device 10, and a stem cutting and directional seedling throwing device 12 installed on the chassis frame 3.

[0024] The power unit of this embodiment is the engine assembly 6, the rice grain supporting and gathering device 1, the reducer assembly 2 are located on the front side of the chassis frame 3, the rice grain pushing and feeding device 4, the adaptive digging and soil shaking device 5, the flexible clamping and extracting device 11, the soil cleaning and debris removing device 10 and the stem cutting and directional seedling throwing device 12, and the crawler walking assembly 8 are located on the lower side of the chassis frame 3, and the engine assembly 6, the gearbox assembly 7, and the electronic control assembly 9 are located on the upper side of the chassis frame 3.

[0025] like Figure 3 As shown, the grain-grass-gathering device 1 includes two lower support plates 103 of the grain-grass-gathering device arranged side by side on the left and right. The lower support plates 103 of the grain-grass-gathering device are connected to the adaptive excavation and soil-shaking device 5 through a support frame 106 of the grain-grass-gathering device to fix the lower support plates 103 of the grain-grass-gathering device. The lower support plates 103 of the grain-grass-gathering device are long and vertically arranged, and the upper ends are tilted backward at a certain angle.

[0026] The upper end of the lower support plate 103 of the grain-raising and gathering device is axially connected to a driving sprocket Ⅰ101, and the lower end is axially connected to a driven sprocket Ⅰ107. A grain-raising chain 105 passes between the driving sprocket Ⅰ101 and the driven sprocket Ⅰ107, so that a circulating grain-raising chain 105 is provided on the lower support plate 103 of the grain-raising and gathering device. The sides of the two grain-raising chains 105 that are close to each other move upward and the distance between them gradually decreases. A plurality of grain-raising fingers 104 are fixedly connected to the grain-raising chain 105, and the grain-raising fingers 104 are evenly distributed along the outer side of the grain-raising chain 105.

[0027] The rice grain raising and gathering device 1 is installed in front of the reducer 2 at a certain inclination angle. The reducer 2 drives the active sprocket Ⅰ101 to rotate, and then drives the driven sprocket Ⅰ107 and the rice grain raising chain 105 to rotate, so that the rice grain raising fingers 104 can raise the disorderly and fallen ginger plants in an orderly manner and gather them to the rice grain raising and feeding device 4, thereby reducing the leakage rate.

[0028] The straw-pushing and feeding device 4 is located behind the straw-pushing and gathering device 1, and includes two straw-pushing and feeding device lower support plates 407 arranged side by side on the left and right. The straw-pushing and feeding device lower support plates 407 are in the shape of long strips extending forward and backward, and the rear ends are tilted upward at a certain angle.

[0029] A circulating feeding chain 401 is provided on the lower support plate 407 of the reed feeding device. Specifically, the front end of the lower support plate 407 of the reed feeding device is axially connected to a driven sprocket II 403, and the rear end is axially connected to a driving sprocket II 406. The feeding chain 401 passes around the driven sprocket II 403 and the driving sprocket II 406. A plurality of evenly distributed feeding fingers 402 are fixedly connected to the outer side of the feeding chain 401. The side of the two feeding chains 401 that are close to each other moves backward and upward, and the distance between them gradually decreases.

[0030] The straw-pulling and feeding device 4 is installed in front of the flexible clamping and extracting device 11, and power is transmitted to the driving sprocket II406 of the straw-pulling and feeding device 4 through the driven wheel III1101 and the connecting shaft 405 of the flexible clamping and extracting device 11, thereby driving the driven sprocket IIⅠ403 and the feeding chain 401 to rotate, so that the feeding finger 402 feeds the ginger plants gathered by the straw-pulling into the feeding entrance of the flexible clamping and extracting device 11 in an orderly manner, thereby increasing the thrust on the ginger plants and improving the feeding accuracy and feeding rate.

[0031] The adaptive digging and shaking device 5 is located below the reed-pulling and feeding device 4, and digs the ginger while the ginger plants are being pulled and fed; it includes an adaptive digging and shaking device support plate 508 fixedly connected to the chassis frame 3 and a three-step arc-shaped digging shovel 510 fixedly connected to the lower end of the adaptive digging and shaking device support plate 508. Two adaptive digging and shaking device support plates 508 are provided and arranged on the left and right sides. The left and right ends of the three-step arc-shaped digging shovel 510 are respectively fixedly connected to the lower ends of the two adaptive digging and shaking device support plates 508 by bolts. The three-step arc-shaped digging shovel 510 is arc-shaped in the left-right direction and the heights of the two ends are higher than the height in the middle, so that the middle position bulges downward, and the front and rear ends of the three-step arc-shaped digging shovel 510 are both inclined downward to achieve effective digging and release of soil. The digging shovel is set in a three-step arc shape, which is conducive to reducing resistance, better breaking up soil ridges and preventing soil accumulation, and reducing damage to ginger.

[0032] A plurality of fixed soil screening bars 509 are also arranged behind the three-stage arc-shaped digging shovel 510. The fixed soil screening bars 509 are long strips extending forward and backward and a plurality of fixed soil screening bars 509 are arranged left and right. A vibrating soil screening bar device 503 is installed behind the fixed soil screening bars 509.

[0033] like Figure 5As shown, the vibrating screen soil grid device 503 includes a soil screening grid 513 hinged to the rear end of the three-step arc-shaped digging shovel 510 and a soil screening swing mechanism for driving the rear end of the soil screening grid 513 to swing up and down.

[0034] The soil screening swing mechanism includes a hydraulic motor 511 fixedly connected to the support plate 508 of the adaptive excavation and soil shaking device. The rotating shaft of the hydraulic motor 511 is connected to the upper end of the rocker arm 515 through an eccentric bearing 514, and the lower end of the rocker arm 515 is hinged to the soil screening bar 513.

[0035] The soil is crushed in the first step by using the fixed soil screening bars 509 to reduce the soil attached to the ginger and reduce the resistance to ginger extraction. Then, the hydraulic motor 511 fixed on the welding plate 512 is connected to the eccentric bearing 514 and drives the rocker arm 515 to make the soil screening bars 513 vibrate up and down, thereby performing the second step of vibration crushing on the soil to improve the excavation and extraction effect of the ginger.

[0036] The adaptive excavation and soil-shaking device 5 also includes an adaptive depth-limiting wheel device 501, which includes a depth-limiting wheel fixing frame 507 fixed to the front end of the adaptive excavation and soil-shaking device support plate 508, a depth-limiting wheel adjustment plate 506 hinged to the front end of the depth-limiting wheel fixing frame 507, and a hydraulic rod 505 driving the depth-limiting wheel adjustment plate 506 to swing up and down. The front end of the hydraulic rod 505 is hinged to the depth-limiting wheel adjustment plate 506, and the rear end is hinged to the depth-limiting wheel fixing frame 507, so that the depth-limiting wheel adjustment plate 506 is driven to swing up and down through the extension and retraction of the hydraulic rod 505, and the lower end of the depth-limiting wheel adjustment plate 506 is equipped with a depth-limiting wheel 504. The excavation depth is adjusted by the adaptive depth-limiting wheel device 501.

[0037] The wheel frame of the depth-limiting wheel 504 is fixed to the long holes extending left and right of the depth-limiting wheel adjustment plate 506 by bolts. The left and right wheelbases of the depth-limiting wheels can be adjusted according to the ridge width through the long holes of the depth-limiting wheel adjustment plate 506. The height of the depth-limiting wheel is adaptively adjusted by the hydraulic rod 505, so that the digging depth of the three-stage arc-shaped digging shovel 510 is adjustable, thereby improving the adaptability of the ginger harvester.

[0038] The flexible clamping and extracting device 11 is located behind the feeding device 4. Fig.11 As shown, the flexible clamping and extracting device 11 includes two flexible clamping and extracting device lower support plates 1106 arranged side by side on the left and right. The flexible clamping and extracting device lower support plate 1106 is a long strip extending forward and backward. The flexible clamping and extracting device lower support plate 1106 is provided with a circulating clamping and extracting chain 1102. Specifically, the front end shaft of the support plate 1106 is connected to a driven sprocket III 1101, and the rear end shaft is connected to a driving sprocket III 1105. The clamping and extracting chain 1102 bypasses the driven sprocket III 1101 and the driving sprocket III 1105, and the two clamping and extracting chains 1102 are close to each other and fit together and move backward and upward.

[0039] The flexible clamping and extracting device 11 is located below the chassis frame 3. The gearbox 7 drives the active sprocket III 1105 of the flexible clamping and extracting device 11, which in turn drives the driven sprocket III 1101 and the clamping and extracting chain 1102 to rotate, clamping and conveying the ginger plants fed by the weeding feeding device 4 backwards, and then extracting the ginger bulbs from the soil.

[0040] A floating support frame mechanism is installed on the lower support plate 1106 of the flexible clamping and extracting device, and the floating support frame mechanism includes a floating support plate 1109 fixedly connected to the lower support plate 1106 of the flexible clamping and extracting device and a support frame 1103 located between the floating support plate 1109 and the clamping and extracting chain 1102, and a compression spring 1108 is installed between the support frame 1103 and the floating support plate 1109. The compression springs 1108 on both sides push the support frame 1103 to press against the inner side of the clamping and extracting chain 1102, thereby increasing the clamping force between the two clamping and extracting chains 1102, and providing a variable clamping force for chain clamping through the floating support mechanism, reducing the stem breakage rate and further improving the extraction effect.

[0041] The soil cleaning and impurity removal device 10 is located below the flexible clamping and extracting device 11 and is used to remove the soil covering the ginger. Fig.12 As shown, the soil cleaning and debris removing device 10 includes two soil cleaning support frames 1005 which are respectively hinged under the lower support plates 1106 of the two flexible clamping and extracting devices. The upper ends of the soil cleaning support frames 1005 are hinged under the lower support plates 1106 of the flexible clamping and conveying devices through hinge joints 1004, so that the two soil cleaning support frames 1005 can swing left and right. The soil cleaning support frames 1005 are equipped with debris removing brushes 1006 and a driving motor 1001 for driving the debris removing brushes 1006 to rotate. The debris removing brushes 1006 are installed on a roller shaft 1010, and the roller shaft 1010 is connected to the driving motor 1001 through a coupling 1003 and a motor reducer 1002.

[0042] A fixed welding plate 1007 is fixedly connected to the lower support plate 1106 of the flexible clamping and extracting device, and a floating rod 1009 passing through the fixed welding plate 1007 is fixedly connected to the soil cleaning support frame 1005. The diameter of the floating rod 1009 is smaller than the diameter of the through hole, so that the floating rod 1009 will not interfere with the through hole when the soil cleaning support frame 1005 swings.

[0043] The fixed welding plate 1007 is provided with a floating spring 1008, and the floating spring 1008 pushes the two soil cleaning support frames 1005 to swing inward. A nut is provided on the floating rod 1009, and the floating spring 1008 is sleeved on the floating rod 1009 and is located between the fixed welding plate 1007 and the nut. The floating rod 1009 is located on the outside of the soil cleaning support frame 1005, so when the floating spring 1008 presses down the floating rod 1009, it pushes the two soil cleaning support frames 1005 to swing inward. Soil cleaning and impurity removal are achieved by the floating spring 1008 and the floating rod 1009. The impurity removal brush 1006 is driven to rotate by the driving motor 1001 to remove the attached soil on the ginger bulb, reduce the damage to the ginger bulb, and realize floating impurity cleaning according to the size of the ginger bulb, further improving the soil cleaning and impurity removal effect.

[0044] The stem-cutting and directional seedling-throwing device 12 is located behind the flexible clamping and pulling device 11 , and the front end of the stem-cutting and directional seedling-throwing device 12 is located below the rear end of the flexible clamping and pulling device 11 .

[0045] The stem-cutting directional seedling throwing device 12 comprises two lower support plates 1207 of the stem-cutting directional seedling throwing device arranged side by side. The lower support plates 1207 of the stem-cutting directional seedling throwing device are long strips extending forward and backward. The lower support plates 1207 of the stem-cutting directional seedling throwing device are provided with a circulating seedling throwing chain 1206. Specifically, the front end of the lower support plate 1207 of the stem-cutting directional seedling throwing device is connected to a driving sprocket IV 1201, and the rear end is connected to a driven sprocket IV 1204. The seedling throwing chain 1206 bypasses the driving sprocket IV 1201 and the driven sprocket IV 1204. The two seedling throwing chains 1206 are close to each other and move backward.

[0046] Since the stem-cutting and directional seedling-throwing device 12 is installed behind the flexible clamping and pulling device 11, the driving wheel III1105 of the flexible clamping and pulling device 11 drives the driving sprocket IV1201 of the stem-cutting and directional seedling-throwing device to rotate through the universal joint 1210, and the universal joint 1210 and the driving sprocket IV1201 of the stem-cutting and directional seedling-throwing device are connected through the rotating shaft 1211.

[0047] A rotating disc knife 1208 is mounted on the lower support plate 1207 of any stem cutting directional seedling throwing device. In this embodiment, a stem cutting knife shaft 1205 is also axially connected to the lower support plate 1207 of any stem cutting directional seedling throwing device, and the disc knife 1208 is fixedly connected to the stem cutting knife shaft 1205. A stem cutting gear 1202 is fixedly connected to the stem cutting knife shaft 1205. The stem cutting gear 1202 is meshed with the driving sprocket IV 1201, and the meshing can be achieved by a gear fixedly connected to the driving sprocket IV 1201. Thus, the disc knife 1208 is driven to rotate by the driving sprocket IV 1201. The disc knife 1208 shears the stems, and the sheared ginger seedlings continue to be transported backwards.

[0048] Since the present application is hand-held, the operator is located directly behind the stem cutting and directional seedling throwing device 12. If the cut ginger seedlings are directly transported backwards, they will be thrown onto the operator. Therefore, it is best to transport them to one side, and transport them to the left or right side, depending on the on-site conditions, and transport the ginger seedlings to the open space side.

[0049] Therefore, the rear end of the lower support plate 1207 of the stem-cutting directional seedling throwing device in this embodiment is fixed to the directional seedling throwing frame 1209, and the directional seedling throwing frame 1209 is adjusted left and right on the arc-shaped guide groove and fastened by nuts, so that the left and right position adjustment of the entire stem-cutting directional seedling throwing device 12 can be achieved. In order to ensure that the power input is maintained during the left and right position adjustment, multiple universal joints 1210 can be provided. The directional seedling throwing frame 1209 can adjust the stem-cutting directional seedling throwing device 12 left and right, and the ginger seedlings are thrown in a predetermined direction.

[0050] An upper support plate 1203 is also fixedly connected to the directional seedling throwing frame 1209 and covers the seedling throwing chain 1206 .

[0051] Method of use of the present invention: The harvester transmits power to the gearbox assembly and the reduction box assembly through the engine assembly, thereby driving other working devices to operate.

[0052] During operation, the rice-supporting and gathering device lifts up and gathers the ginger plants, allowing them to enter the rice-pulling and feeding device. The adaptive digging and shaking soil device digs the ginger and vibrates to shake the soil and remove debris. At the same time, it is automatically fed into the flexible clamping and pulling device under the action of the pulling fingers. The feeding adaptability is stronger and more accurate, which reduces the leakage rate. The flexible clamping and pulling device pulls and transports the ginger diagonally upward. During the transportation process, the floating flexible soil cleaning and debris removal device flexibly removes the soil carried by the ginger bulbs. When the ginger stems are clamped by the flexible clamping and pulling device and the seedling throwing device at the same time, the stem cutting and directional seedling throwing device shears the stems, and the ginger bulbs fall down in an orderly manner, and the ginger seedlings continue to be transported backwards and thrown to one side. This harvester can be applied to different operating conditions and meet different agronomic requirements for ginger harvesting. It has low damage and breakage rates, high mechanization and automation levels, good operating effects, and meets the requirements for ginger harvesting.

[0053] Of course, the above description is not limited to the above examples. Technical features not described in the present invention can be achieved by or by using existing technologies, which will not be described here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention, and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A walk-behind ginger harvester, characterized in that: It comprises a chassis frame (3), an engine assembly (6), and crawler track assemblies (8) located on both sides of the chassis frame (3); It also includes a straw-supporting and gathering device (1), a straw-pushing and feeding device (4), and an adaptive digging and soil-shaking device (5); The straw-raising and gathering device (1) comprises two lower support plates (103) of the straw-raising and gathering device arranged side by side on the left and right, a circulating straw-raising chain (105) being provided on the lower support plate (103) of the straw-raising and gathering device, a plurality of straw-raising fingers (104) being fixedly connected to the straw-raising chain (105), and the sides of the two straw-raising chains (105) that are close to each other move upwards and the distance between them gradually decreases, so as to raise the fallen ginger plants; The straw-pulling and feeding device (4) is located behind the straw-pushing and gathering device (1), and comprises two lower support plates (407) for the straw-pulling and feeding device arranged side by side on the left and right. A circulating feeding chain (401) is provided on the lower support plate (407) for the straw-pulling and feeding device, and a plurality of feeding fingers (402) are fixedly connected to the feeding chain (401). The sides of the two feeding chains (401) that are close to each other move backward and upward, and the distance between them gradually decreases. The adaptive digging and shaking device (5) is located below the reed-pulling and feeding device (4), and comprises an adaptive digging and shaking device support plate (508) fixedly connected to the chassis frame (3) and a three-step arc-shaped digging shovel (510) fixedly connected to the lower end of the adaptive digging and shaking device support plate (508), wherein both front and rear ends of the three-step arc-shaped digging shovel (510) are inclined downward.

2. The hand-held ginger harvester according to claim 1, characterized in that: The adaptive excavation and soil shaking device (5) further comprises a vibrating soil screen bar device (503), wherein the vibrating soil screen bar device (503) comprises a soil screen bar (513) hinged to the rear end of the three-step arc-shaped excavation shovel (510) and a soil screen swing mechanism for driving the rear end of the soil screen bar (513) to swing up and down.

3. The hand-held ginger harvester according to claim 2, characterized in that: The soil screening swing mechanism comprises a hydraulic motor (511) fixedly connected to a support plate (508) of the adaptive excavation and soil shaking device, the rotating shaft of the hydraulic motor (511) being connected to a rocker arm (515) via an eccentric bearing (514), and the rocker arm (515) being hinged to the soil screening grid bar (513).

4. The hand-held ginger harvester according to claim 2, characterized in that: The adaptive excavation and soil-shaking device (5) further comprises an adaptive depth-limiting wheel device (501), wherein the adaptive depth-limiting wheel device (501) comprises a depth-limiting wheel fixing frame (507) fixedly connected to the front end of the adaptive excavation and soil-shaking device support plate (508), a depth-limiting wheel adjustment plate (506) hingedly connected to the front end of the depth-limiting wheel fixing frame (507), and a hydraulic rod (505) for driving the depth-limiting wheel adjustment plate (506) to swing up and down, and a depth-limiting wheel (504) is mounted at the lower end of the depth-limiting wheel adjustment plate (506).

5. The walk-behind ginger harvester according to any one of claims 1 to 4, characterized in that: It also includes a flexible clamping and extracting device (11) located behind the straw-pulling and feeding device (4), the flexible clamping and extracting device (11) including two flexible clamping and extracting device lower support plates (1106) arranged side by side on the left and right, a circulating clamping and extracting chain (1102) being provided on the flexible clamping and extracting device lower support plates (1106), the two clamping and extracting chains (1102) being close to each other and moving backward and upward.

6. The hand-held ginger harvester according to claim 5, characterized in that: A floating support frame mechanism is installed on the lower support plate (1106) of the flexible clamping and extracting device, and the floating support frame mechanism includes a floating support plate (1109) fixedly connected to the lower support plate (1106) of the flexible clamping and extracting device, and a support frame (1103) located between the floating support plate (1109) and the clamping and extracting chain (1102), and a compression spring (1108) is installed between the support frame (1103) and the floating support plate (1109).

7. The hand-held ginger harvester according to claim 5, characterized in that: The invention also comprises a soil cleaning and debris removing device (10) located below the flexible clamping and extracting device (11), the soil cleaning and debris removing device (10) comprising two soil cleaning support frames (1005) respectively hinged below two lower support plates (1106) of the flexible clamping and extracting device, the soil cleaning support frames (1005) being provided with debris removing brushes (1006) and a driving motor (1001) for driving the debris removing brushes (1006) to rotate, the lower support plate (1106) of the flexible clamping and extracting device being fixedly connected with a fixed welding plate (1007), the soil cleaning support frames (1005) being fixedly connected with a floating rod (1009) passing through the fixed welding plate (1007), the fixed welding plate (1007) being provided with a floating spring (1008), the floating spring (1008) pushing the two soil cleaning support frames (1005) to swing inwards.

8. The hand-held ginger harvester according to claim 5, characterized in that: The invention also comprises a stem-cutting directional seedling throwing device (12) located behind the flexible clamping and extracting device (11), wherein the stem-cutting directional seedling throwing device (12) comprises two stem-cutting directional seedling throwing device lower support plates (1207) arranged side by side on the left and right, and a circulating seedling throwing chain (1206) is provided on the stem-cutting directional seedling throwing device lower support plates (1207), and the two seedling throwing chains (1206) are close to each other and move backward, and a rotating disc knife (1208) is installed on any stem-cutting directional seedling throwing device lower support plate (1207).

9. The hand-held ginger harvester according to claim 8, characterized in that: The rear end of the lower support plate (1207) of the stem cutting directional seedling throwing device is fixedly connected to the directional seedling throwing frame (1209), and the directional seedling throwing frame (1209) is adjusted left and right on the arc-shaped guide groove and is fastened by a nut.

10. The hand-held ginger harvester according to claim 5, characterized in that: The crawler walking assembly (8) is a triangular crawler, and the flexible clamping and extracting device (11) is located below the chassis frame (3).

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