Rhizome crop harvesting equipment

Abstract

The utility model discloses harvesting equipment for rhizome crops. The harvesting equipment comprises a frame, a walking transmission system and a lifting mechanism, the walking transmission system comprises a first lifting transmission mechanism and a second lifting transmission mechanism; the lifting mechanism comprises a connecting arm assembly and a hydraulic oil cylinder, the connecting arm assembly comprises a first connecting arm and a second connecting arm, the first connecting arm is fixedly connected with the frame, the first lifting transmission mechanism is installed on the first connecting arm, and the second lifting transmission mechanism is installed on the second connecting arm; the other end of the first connecting arm is rotationally connected with one end of the second connecting arm through a first transmission shaft, the other end of the second connecting arm is rotationally installed on a second transmission shaft which is in transmission connection with the walking mechanism, and the hydraulic oil cylinder is hinged between the second connecting arm and the frame. The independent lifting mechanisms are arranged on the left side and the right side of the vehicle frame respectively, the height of one side of the vehicle frame can be adjusted independently, balance of the two sides is guaranteed, and therefore the harvesting equipment meets the advancing requirement of harvesting operation on mountainous roads and mountainous regions.

Description

[0001] This utility model claims the priority of the following patent applications:

[0002] The Chinese invention patent application with the application date of October 14, 2023, application number CN202311328558.8, and name “A high-efficiency and stable Pseudostellaria ginseng harvesting equipment suitable for mountain roads”. Technical Field

[0003] The utility model belongs to the technical field of agricultural harvesting equipment, in particular to a root crop harvesting equipment. Background Art

[0004] Pseudostellariae grows in the shade and wet places under forests in valleys at an altitude of 800-2700 meters. It is also found in Japan and Korea. Pseudostellariae has the effects of invigorating Qi, strengthening the body, promoting fluid and moistening the lungs. It is often used for spleen deficiency, fatigue, loss of appetite, weakness after illness, Qi and Yin deficiency, spontaneous sweating and thirst, and dry cough due to lung dryness.

[0005] For the production areas that grow in mountainous areas and rugged terrain, a lot of manual labor is needed to collect and obtain the Pseudostellaria heterophylla every year during the harvest season. After working for a long time, fatigue increases and work efficiency is reduced. Due to the complexity of the terrain, mechanical equipment cannot be used for harvesting. Its traditional mechanical harvesting equipment is only suitable for flat ground and cannot adjust the height left and right, which makes it impossible to walk in rugged terrain, making the operation even more difficult. In view of the above problems, a root crop harvesting equipment is urgently needed. Utility Model Content

[0006] In view of the above-mentioned shortcomings, the technical problem to be solved by the utility model is to provide a root crop harvesting device to meet the needs of walking on mountain roads and harvesting on slopes.

[0007] In order to solve the above technical problems, the technical solution of the utility model is:

[0008] A root crop harvesting device comprises: a frame, on which an engine, a travel transmission system, a travel mechanism, a lifting mechanism and a harvesting device are installed;

[0009] The travel transmission system is used to transmit the output power of the engine to the travel mechanism, and the travel transmission system includes a first lifting transmission mechanism and a second lifting transmission mechanism;

[0010] A walking mechanism and a lifting mechanism are respectively provided on both sides of the frame, and the lifting mechanism is located between the walking mechanism and the frame on the same side. The lifting mechanism includes a connecting arm assembly and a hydraulic cylinder. The connecting arm assembly includes a first connecting arm and a second connecting arm. The first lifting transmission mechanism is installed on the first connecting arm, and the second lifting transmission mechanism is installed on the second connecting arm. One end of the first connecting arm is fixed to the frame, and the other end of the first connecting arm is rotatably connected to one end of the second connecting arm through a first transmission shaft. The other end of the second connecting arm is rotatably installed on the second transmission shaft. The second transmission shaft is transmission-connected to the walking mechanism, and the hydraulic cylinder is hinged between the second connecting arm and the frame.

[0011] Preferably, the first lifting transmission mechanism includes a first lifting driving sprocket and a first lifting driven sprocket connected by chain transmission, the second lifting transmission mechanism includes a second lifting driving sprocket and a second lifting driven sprocket connected by chain transmission, the first lifting driven sprocket and the second lifting driving sprocket are fixed on the first transmission shaft, and the second lifting driven sprocket is fixedly connected to the second transmission shaft.

[0012] Preferably, the travel transmission system comprises a gearbox driven by the engine, and two output ends of the gearbox are respectively used to drive the two first lifting driving sprockets.

[0013] Preferably, the travel transmission system further comprises two speed-changing chain transmission devices, one of which is respectively provided between the output end of the gearbox and the first lifting driving sprocket on the same side;

[0014] The speed change chain transmission device includes a primary speed change chain transmission mechanism, the speed change chain transmission mechanism includes a speed change driving sprocket and a speed change driven sprocket connected by chain transmission, the diameter of the speed change driven sprocket is larger than the diameter of the speed change driving sprocket, the speed change driving sprocket is connected to the output end of the gearbox, and the speed change driven sprocket is connected to the first lifting driving sprocket; or,

[0015] The travel transmission system also includes two speed change chain transmission devices, one of which is provided between the output end of the gearbox and the first lifting drive sprocket on the same side;

[0016] The speed change chain transmission device includes two or more speed change chain transmission mechanisms, each of which includes a speed change driving sprocket and a speed change driven sprocket connected by chain transmission, the diameter of the speed change driven sprocket is larger than the diameter of the speed change driving sprocket, the speed change driven sprocket of the speed change chain transmission mechanism of the previous stage drives the speed change driving sprocket of the speed change chain transmission mechanism of the next stage, the speed change driving sprocket of the first stage of the speed change chain transmission mechanism is connected to the output end of the gearbox, and the speed change driven sprocket of the last stage is connected to the first lifting driving sprocket.

[0017] Preferably, the walking mechanism comprises a chain rail driving wheel, a chain rail supporting wheel and a chain rail wound around the chain rail driving wheel and the chain rail supporting wheel, and the chain rail driving wheel is fixedly mounted on the second transmission shaft.

[0018] Preferably, the harvesting device includes a shovel device and a screening device, the shovel device is used to shovel crops out of the field and transport them to the screening device, the screening device is used to separate soil attached to the crops, and the engine drives the shovel device and the screening device to operate through a harvesting transmission system.

[0019] Preferably, the shovel device includes a shovel, two first connecting rods hinged to the left and right sides of the frame respectively, and two second connecting rods hingedly connected to the first connecting rods one by one. The shovel is fixed between the lower ends of the two first connecting rods, and the engine drives the second connecting rods to move through the harvesting transmission system.

[0020] Preferably, the screening device comprises a coarse screen square chain row and a fine screen square chain row, the front end of the fine screen square chain row is located below the rear end of the coarse screen square chain row, and the width of the squares of the coarse screen square chain row is greater than the width of the squares of the fine screen square chain row;

[0021] The coarse screen square chain row is wound on the coarse screen driving sprocket and the coarse screen driven sprocket, the coarse screen driving sprocket is fixed on the coarse screen driving sprocket shaft, and the coarse screen driven sprocket is fixed on the coarse screen driven sprocket shaft;

[0022] The fine screen square chain row is wound on a fine screen driving sprocket and a fine screen driven sprocket. The fine screen driving sprocket is fixed on a fine screen driving sprocket shaft, and the fine screen driven sprocket is fixed on a fine screen driven sprocket shaft.

[0023] Preferably, a crushing roller is provided above the coarse screen grid chain row.

[0024] Preferably, the harvesting transmission system comprises a first harvesting transmission shaft driven by the engine, a driving gear fixed to the first harvesting transmission shaft, a second harvesting transmission shaft and a driven gear fixed to the second harvesting transmission shaft, the driving gear and the driven gear being meshed;

[0025] A coarse screen driving active sprocket is fixed on the second harvesting transmission shaft, a coarse screen driving driven sprocket is fixedly connected to the coarse screen driving sprocket shaft, and the coarse screen driving active sprocket and the coarse screen driving driven sprocket are connected via a chain transmission;

[0026] A fine screen driving driving sprocket is fixed on the coarse screen driving sprocket shaft, a fine screen driving driven sprocket is fixedly connected to the fine screen driving sprocket shaft, and the fine screen driving driving sprocket is drivingly connected to the fine screen driving driven sprocket through a chain;

[0027] A crushing roller driving sprocket is fixed at one end of the second harvesting transmission shaft, a crushing roller driving driven sprocket is fixed at one end of the crushing roller, and the crushing roller driving sprocket and the crushing roller driving driven sprocket are connected through a chain transmission;

[0028] The second connecting rod is mounted on the second harvesting transmission shaft through an eccentric bearing;

[0029] A clutch is provided on the first harvesting transmission shaft, and the clutch includes a moving side wheel and a stationary side wheel. The moving side wheel is slidably mounted on the first harvesting transmission shaft through a spline, and the stationary side wheel is rotatably mounted on the first harvesting transmission shaft. The engine drives the stationary side wheel to rotate.

[0030] After adopting the above technical solution, the beneficial effects of the utility model are:

[0031] The present application provides lifting mechanisms on the left and right sides of the frame respectively. The two lifting mechanisms are independently adjusted, and the height of one side of the frame can be adjusted separately to ensure the balance of both sides, so that the harvesting equipment can meet the requirements of walking on mountain roads and mountain harvesting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the root and tuber crop harvesting device of the utility model;

[0033] Figure 2 It is a right side structural schematic diagram of an embodiment of the root and tuber crop harvesting device of the utility model;

[0034] Figure 3 It is a cross-sectional structural schematic diagram of an embodiment of the root and tuber crop harvesting device of the utility model;

[0035] Figure 4This is a right side structural schematic diagram of the embodiment of the root crop harvesting equipment of the utility model after removing the lifting mechanism and the traveling mechanism;

[0036] Figure 5 This is a left-side structural schematic diagram of an embodiment of the root crop harvesting device of the utility model without the lifting mechanism and the traveling mechanism;

[0037] Figure 6 1 is a structural schematic diagram of the travel transmission system of an embodiment of the root and tuber crop harvesting equipment of the utility model (only the travel transmission system on the right side is shown);

[0038] Figure 7 This is a schematic diagram of the structure of the walking mechanism of the embodiment of the root and tuber crop harvesting equipment of the utility model;

[0039] Figure 8 It is a structural schematic diagram of the driving and screening device part of the harvesting transmission system of the root crop harvesting equipment embodiment of the utility model;

[0040] Fig. 9 It is a structural schematic diagram of the driving shovel device part of the harvesting transmission system of the root crop harvesting equipment embodiment of the utility model;

[0041] Fig.10 It is a structural schematic diagram of a clutch in a harvesting transmission system of an embodiment of the root crop harvesting equipment of the utility model;

[0042] In the figure: 1, frame; 2, engine; 3, walking mechanism; 31, rail driving wheel; 32, chain rail supporting wheel; 33, chain rail; 34, tensioning device; 35, walking bracket; 401, first lifting driving sprocket; 402, second lifting driving sprocket; 403, second lifting driven sprocket; 404, first lifting driven sprocket; 405, second transmission shaft; 406, speed-changing driving sprocket; 407, speed-changing driven sprocket; 408, walking driven pulley; 409, walking belt; 410, first transmission shaft; 411, walking driving pulley; 5, lifting mechanism; 51, first connecting arm; 52, second connecting arm; 53, hydraulic cylinder; 6, gearbox; 7, hydraulic pump; 801, shovel plate; 802, first connecting rod; 803, second connecting rod; 804, coarse screen grid chain row; 805, fine screen grid chain row; 806, coarse screen driving sprocket; 807, driven sprocket for coarse screen; 808, driving sprocket shaft for coarse screen; 809, driven sprocket shaft for coarse screen; 810, driving sprocket for fine screen; 811, driven sprocket for fine screen; 812, driving sprocket shaft for fine screen; 813, driven sprocket shaft for fine screen; 814, crushing roller; 815, first harvesting transmission shaft; 816, driving gear; 817, second harvesting transmission shaft; 818, driven gear; 819, driving sprocket for coarse screen; 8 20. Coarse screen driven sprocket; 821. Fine screen driven active sprocket; 822. Fine screen driven driven sprocket; 823. Crushing roller driven active sprocket; 824. Crushing roller driven driven sprocket; 825. Harvest main pulley; 826. Harvest slave pulley; 827. Coarse screen vibrating wheel; 828. Fine screen vibrating wheel; 829. Stationary side wheel; 830. Moving side wheel; 831. Harvest belt; 9. Material box bracket; 10. Material box; 11. Battery; 12. Depth limiting support wheel; 13. Depth limiting rod; 14. Depth limiting sleeve; 15. Harvest control lever; 16. Clutch control lever; 17. Left lifting mechanism control lever; 18. Right lifting mechanism control lever; 19. Shift lever; 20. High and low speed conversion lever. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0044] like Figure 1-Figure 3 As shown together, a root crop harvesting device comprises: a frame 1, on which an engine 2, a travel transmission system, a travel mechanism 3 and a harvesting device are installed;

[0045] The travel transmission system is used to transmit the output power of the engine 2 to the travel mechanism 3, and the travel transmission system includes a first lifting transmission mechanism and a second lifting transmission mechanism;

[0046] A walking mechanism 3 and a lifting mechanism 5 are respectively provided on both sides of the frame 1. The lifting mechanism 5 is located between the walking mechanism 3 and the frame 1 on the same side. The lifting mechanism 5 includes a connecting arm assembly and a hydraulic cylinder 53. The connecting arm assembly includes a first connecting arm 51 and a second connecting arm 52. The first lifting transmission mechanism is installed on the first connecting arm 51, and the second lifting transmission mechanism is installed on the second connecting arm 52. One end of the first connecting arm 51 is fixed to the frame 1, and the other end of the first connecting arm 51 is rotatably connected to one end of the second connecting arm 52 through the first transmission shaft 410. The other end of the second connecting arm 52 is rotatably installed on the second transmission shaft 405. The second transmission shaft 405 is transmission-connected to the walking mechanism 3, and the hydraulic cylinder 53 is hinged between the second connecting arm 52 and the frame 1.

[0047] When the left and right sides of the frame 1 are raised or lowered, the hydraulic cylinder 53 extends or shortens, driving the second connecting arm 52 to rotate around the first transmission shaft 410, thereby changing the height of the frame 1 on that side. The left and right sides of the frame 1 have the same height, and the harvesting equipment has good balance, meeting the travel requirements of mountain roads or mountain harvesting operations.

[0048] In the illustrated embodiment, the first lifting transmission mechanism is preferably a first lifting chain transmission mechanism, and the second lifting transmission mechanism is preferably a second lifting chain transmission mechanism. The first lifting chain transmission mechanism includes a first lifting active sprocket 401 and a first lifting driven sprocket 404 connected by chain transmission, and the second lifting chain transmission mechanism includes a second lifting active sprocket 402 and a second lifting driven sprocket 403 connected by chain transmission. The first lifting driven sprocket 404 and the second lifting active sprocket 402 are fixed on the first transmission shaft 410, and the second lifting driven sprocket 403 is fixedly connected to the second transmission shaft 405. In addition to the chain transmission mechanism, the first lifting transmission mechanism and the second lifting transmission mechanism can also adopt belt transmission or gear transmission, which is not illustrated in detail here. In the illustrated embodiment, the first connecting arm 51 and the second connecting arm 52 are preferably a box structure, and the first lifting chain transmission mechanism and the second lifting chain transmission mechanism are arranged in the box to effectively protect the first lifting chain transmission mechanism and the second lifting chain transmission mechanism. In other embodiments, the first connecting arm 51 and the second connecting arm 52 can be a connecting rod or a connecting plate.

[0049] When the height of the frame 1 is adjusted, the power transmission of the first lifting chain transmission mechanism and the second lifting chain transmission mechanism will not be hindered. The lifting mechanism of the present application can not only play a lifting role, but also serve as the installation base of the first lifting chain transmission mechanism and the second lifting chain transmission mechanism. The first transmission shaft 410 not only plays a role in power transmission between the first lifting chain transmission mechanism and the second lifting chain transmission mechanism, but also serves as the hinge shaft of the first connecting arm 51 and the second connecting arm 52. The second transmission shaft 405 not only plays a role in transmitting power to the walking mechanism 3, but also serves as the rotation center of the second connecting arm 52. Therefore, the lifting mechanism and the lifting chain transmission mechanism in the present application are organically combined to form a "you have me, I have you" structure, and the two are inseparable.

[0050] like Figure 6 As shown, the travel transmission system includes a gearbox 6 driven by the engine 2, and two output ends of the gearbox 6 are respectively used to drive the first lifting driving sprockets 401 on both sides.

[0051] The travel transmission system also includes two speed change chain transmission devices, and a speed change chain transmission device is provided between the output end of the gearbox 6 on the same side and the first lifting driving sprocket 401;

[0052] The speed change chain transmission device includes a speed change chain transmission mechanism of two or more stages, each stage of the speed change chain transmission mechanism includes a speed change driving sprocket 406 and a speed change driven sprocket 407 connected by chain transmission, the diameter of the speed change driven sprocket 407 is larger than the diameter of the speed change driving sprocket 406, the speed change driven sprocket 407 of the previous stage of the speed change chain transmission mechanism drives the speed change driving sprocket 406 of the next stage of the speed change chain transmission mechanism, the speed change driving sprocket 406 of the first stage of the speed change chain transmission mechanism is connected to the output end of the gearbox 6, and the last stage of the speed change driven sprocket 407 is connected to the first lifting driving sprocket 401. In the illustrated embodiment, the speed change chain transmission device includes a two-stage speed change chain transmission mechanism, the output speed of the gearbox 6 is reduced by two stages to transmit power to the first lifting driving sprocket 401, and then the power is transmitted to the walking mechanism 3 through the first lifting chain transmission mechanism and the second lifting chain transmission mechanism to drive the harvesting device to walk. In other embodiments, the speed chain transmission device is provided with a first-stage speed chain transmission mechanism or a third-stage or above speed chain transmission mechanism, which is specifically configured according to needs and is not limited to a certain value.

[0053] The travel transmission system also includes a travel driving pulley 411, a travel slave pulley 408, and a travel belt 409 wound around the travel driving pulley 411 and the travel slave pulley 408. The travel driving pulley 411 is directly driven by the engine 2, and the travel slave pulley 408 is fixedly connected to the input end of the gearbox 6.

[0054] like Figure 7As shown, the walking mechanism 3 includes a chain track driving wheel 31, a chain track supporting wheel 32 and a chain track 33 wound around the chain track driving wheel 31 and the chain track supporting wheel 32. The chain track driving wheel 31 is fixedly mounted on the second transmission shaft 405. When the chain track driving wheel 31 rotates, the chain track 33 is driven to run, thereby driving the harvesting equipment forward and backward. Among them, the chain track driving wheel 31 and the chain track supporting wheel 32 are rotatably mounted on the walking bracket 35. A tensioning device 34 is provided between the walking bracket 35 and one of the chain track supporting wheels 32 for adjusting the tension of the chain track 33. In the illustrated embodiment, two chain track supporting wheels 32 are provided. In actual applications, the chain track supporting wheels 32 are set as needed and are not limited to a certain value.

[0055] A hydraulic pump 7 is provided on one side of the gearbox 6 . The hydraulic pump 7 is used to supply high-pressure hydraulic oil to the hydraulic cylinder 53 . The hydraulic pump 7 is driven by the gearbox 6 .

[0056] The harvesting device includes a shovel device and a screening device. The shovel device is used to shovel crops out of the field and transport them to the screening device. The screening device is used to separate the soil attached to the crops to harvest clean crops such as Pseudostellaria heterophylla. The engine drives the shovel device and the screening device through a harvesting transmission system.

[0057] like Fig. 9 As shown, the shovel device includes a shovel board 801, two first connecting rods 802 respectively hinged to the left and right sides of the frame 1, and two second connecting rods 803 hinged one by one to the first connecting rods 802. The shovel board 801 is fixed between the lower ends of the two first connecting rods 802, and the engine 2 drives the upper end of the second connecting rod 803 to move through the harvesting transmission system.

[0058] like Figure 3 As shown, the screening device includes a coarse screen square chain row 804 and a fine screen square chain row 805 located behind the coarse screen square chain row 804, the front end of the fine screen square chain row 805 is located below the rear end of the coarse screen square chain row 804, and the width of the squares of the coarse screen square chain row 804 is greater than the width of the squares of the fine screen square chain row 805;

[0059] The coarse screen grid chain row 804 is wound around the coarse screen driving sprocket 806 and the coarse screen driven sprocket 807. The coarse screen driving sprocket 806 is fixed on the coarse screen driving sprocket shaft 808, and the coarse screen driven sprocket 807 is fixed on the coarse screen driven sprocket shaft 809.

[0060] The fine screen grid chain row 805 is wound around the fine screen driving sprocket 810 and the fine screen driven sprocket 811. The fine screen driving sprocket 810 is fixed on the fine screen driving sprocket shaft 812, and the fine screen driven sprocket 811 is fixed on the fine screen driven sprocket shaft 813.

[0061] A crushing roller 814 is provided above the coarse screen square chain row 804 to crush the soil attached to the crops on the coarse screen square chain row 804 to promote the separation of the soil and the crops.

[0062] like Figure 8 As shown, the harvesting transmission system includes a first harvesting transmission shaft 815, a driving gear 816 fixed on the first harvesting transmission shaft 815, a second harvesting transmission shaft 817 and a driven gear 818 fixed on the second harvesting transmission shaft 817, the driving gear 816 and the driven gear 818 are meshed, a harvesting main pulley 825 is fixed to the output end of the engine 2, a harvesting slave pulley 826 is provided on the first harvesting transmission shaft 815, and the harvesting main pulley 825 and the harvesting slave pulley 826 are connected by a harvesting belt 831;

[0063] A coarse screen driving active sprocket 819 is fixed on the second harvesting transmission shaft 817, and a coarse screen driving driven sprocket 820 is fixedly connected to the coarse screen driving sprocket shaft 808. The coarse screen driving active sprocket 819 and the coarse screen driving driven sprocket 820 are connected by chain transmission;

[0064] A fine screen driving driving sprocket 821 is fixed on the coarse screen driving sprocket shaft 808, and a fine screen driving driven sprocket 822 is fixedly connected to the fine screen driving sprocket shaft 812. The fine screen driving driving sprocket 821 is connected to the fine screen driving driven sprocket 822 through a chain.

[0065] A crushing roller driving sprocket 823 is fixed to one end of the second harvesting transmission shaft 817, and a crushing roller driving driven sprocket 824 is fixed to one end of the crushing roller 814. The crushing roller driving sprocket 823 and the crushing roller driving driven sprocket 824 are connected by chain transmission;

[0066] The second connecting rod 803 is mounted on the second harvesting transmission shaft 817 through an eccentric bearing.

[0067] like Figure 3 As shown, a coarse screen vibration wheel 827 is provided below the upper chain row of the coarse screen grid chain row 804, which is used to make the coarse screen grid chain row 804 vibrate when it is running, break the soil on the crops, accelerate the separation of the soil from the crops, and let the broken soil leak from the grids in the coarse screen grid chain row 804, and the crops remain on the coarse screen grid chain row 804. A fine screen vibration wheel 828 is provided below the upper chain row of the fine screen grid chain row 805, which is used to make the fine screen grid chain row 805 vibrate when it is running, break the soil on the crops, and let the broken soil leak from the grids in the fine screen grid chain row 805, and the crops remain on the fine screen grid chain row 805.

[0068] When harvesting crops, the engine 2 drives the main harvesting pulley 825 to rotate, the main harvesting pulley 825 drives the harvesting slave pulley 826 to rotate through the harvesting belt 831, the harvesting slave pulley 826 drives the first harvesting transmission shaft 815 and the driving gear 816 to rotate, the driving gear 816 drives the driven gear 818 to rotate, the driven gear 818 drives the coarse screen to drive the driving sprocket 819 and the crushing roller to drive the driving sprocket 823 to rotate through the second harvesting transmission shaft 817, and drives the second connecting rod 803 to swing through the second harvesting transmission shaft 817;

[0069] When the second connecting rod 803 swings, it pulls the first connecting rod 802 to swing back and forth, thereby driving the shovel plate 801 to shovel into the field to scoop up the crops, and then place the scooped crops on the coarse screen grid chain row 804;

[0070] At the same time, the coarse screen driving active sprocket 819 drives the coarse screen driving driven sprocket 820 to rotate, thereby driving the coarse screen driving sprocket shaft 808 and the coarse screen driving sprocket 806 to rotate, thereby driving the coarse screen grid chain row 804 to operate; at the same time, the coarse screen driving active sprocket 819 drives the fine screen driving active sprocket 821 to rotate through the coarse screen driving sprocket shaft 808, and the fine screen driving active sprocket 821 drives the fine screen driving sprocket shaft 812 and the fine screen driving sprocket 810 to rotate through the fine screen driving driven sprocket 822, thereby driving the fine screen grid chain row 805 to operate; at the same time, the crushing roller driving active sprocket 823 drives the crushing roller driving driven sprocket 824 to rotate, and the crushing roller driving driven sprocket 824 drives the crushing roller 814 to rotate;

[0071] When the scooped crops are placed on the coarse screen square chain row 804, the coarse screen square chain row 804 drives the crops to move backward. When the crops pass through the crushing roller 814, the crushing roller 814 crushes the soil on the crops, and under the action of the coarse screen vibration wheel 827, the crushed soil is caused to leak downward, and the soil is initially screened out. Then, the coarse screen square chain row 804 transports the crops to the fine screen square chain row 805. Under the action of the fine screen vibration wheel 828, the soil attached to the crops is further screened out. Moreover, the square size on the fine screen square chain row 805 is smaller than the crop size, so as to achieve the effect of leaking the soil but not the crops, and finally harvest the crops with no or almost no soil attached.

[0072] like Fig.10As shown, when the harvesting equipment is moving, the harvesting device does not need to work, so a clutch is provided on the first harvesting transmission shaft 815, and the clutch includes a moving side wheel 830 and a stationary side wheel 829. The moving side wheel 830 is slidably mounted on the first harvesting transmission shaft 815 through a spline, and the stationary side wheel 829 is fixedly mounted on the harvesting slave pulley 826, and the harvesting slave pulley 826 is rotatably mounted on the first harvesting transmission shaft 815, and the engine 2 drives the stationary side wheel 829 to rotate through the harvesting belt 831. When the moving side wheel 830 is separated from the stationary side wheel 829, the engine 2 drives the stationary side wheel 829 to idle, and at this time, the harvesting device does not work; when the moving side wheel 830 is combined with the stationary side wheel 829, the moving side wheel 830 transmits power to the first harvesting transmission shaft 815 through the stationary side wheel 829, thereby driving the harvesting device to work and perform harvesting operations.

[0073] A material box support 9 for placing a material box 10 is provided on the frame 1. The material box 10 is located below the rear end of the fine screen grid chain row 805 to collect crops.

[0074] A battery 11 is installed on one side of the vehicle frame 1, and the battery 11 is used to provide power to the starter, headlights, etc.

[0075] The front end of the frame 1 is provided with a depth-limiting support wheel 12, which is rotatably mounted on a depth-limiting rod 13, which slides in a depth-limiting sleeve 14, which is fixed to the front end of the frame 1, and the depth-limiting rod 13 is fixed in the depth-limiting sleeve 14 by a bolt threadedly connected to the depth-limiting sleeve 14. The height of the depth-limiting support wheel 12 is adjustable to achieve the purpose of adjusting the immersion depth of the shovel plate 801 to meet the harvesting requirements of different crops.

[0076] The frame 1 is also provided with a harvesting joystick 15 for controlling the harvesting device, a clutch joystick 16 for controlling the travel transmission system, a left lifting mechanism joystick 17 for controlling the left lifting mechanism 5, and a right lifting mechanism joystick 18 for controlling the right lifting mechanism 5. The gearbox 6 is provided with a gear lever 19 and a high and low speed conversion lever 20.

[0077] The root and tuber crop harvesting device of the utility model is used for harvesting crops such as Pseudostellaria heterophylla, Scutellaria baicalensis, Codonopsis pilosula, Salvia miltiorrhiza and peanut.

[0078] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A root crop harvesting device, comprising: The frame is characterized in that an engine, a travel transmission system, a travel mechanism, a lifting mechanism and a harvesting device are installed on the frame; The travel transmission system is used to transmit the output power of the engine to the travel mechanism, and the travel transmission system includes a first lifting transmission mechanism and a second lifting transmission mechanism; A walking mechanism and a lifting mechanism are respectively provided on both sides of the frame, and the lifting mechanism is located between the walking mechanism and the frame on the same side. The lifting mechanism includes a connecting arm assembly and a hydraulic cylinder. The connecting arm assembly includes a first connecting arm and a second connecting arm. The first lifting transmission mechanism is installed on the first connecting arm, and the second lifting transmission mechanism is installed on the second connecting arm. One end of the first connecting arm is fixed to the frame, and the other end of the first connecting arm is rotatably connected to one end of the second connecting arm through a first transmission shaft. The other end of the second connecting arm is rotatably installed on the second transmission shaft. The second transmission shaft is transmission-connected to the walking mechanism, and the hydraulic cylinder is hinged between the second connecting arm and the frame.

2. The root crop harvesting device according to claim 1, characterized in that: The first lifting transmission mechanism includes a first lifting driving sprocket and a first lifting driven sprocket connected by chain transmission, and the second lifting transmission mechanism includes a second lifting driving sprocket and a second lifting driven sprocket connected by chain transmission, the first lifting driven sprocket and the second lifting driving sprocket are fixed on the first transmission shaft, and the second lifting driven sprocket is fixedly connected to the second transmission shaft.

3. The root crop harvesting device according to claim 2, characterized in that: The travel transmission system comprises a gearbox driven by the engine, and two output ends of the gearbox are respectively used to drive the two first lifting driving sprockets.

4. The root crop harvesting device according to claim 3, characterized in that: The travel transmission system also includes two speed change chain transmission devices, one of which is provided between the output end of the gearbox and the first lifting drive sprocket on the same side; The speed change chain transmission device includes a primary speed change chain transmission mechanism, the speed change chain transmission mechanism includes a speed change driving sprocket and a speed change driven sprocket connected by chain transmission, the diameter of the speed change driven sprocket is larger than the diameter of the speed change driving sprocket, the speed change driving sprocket is connected to the output end of the gearbox, and the speed change driven sprocket is connected to the first lifting driving sprocket; or, The travel transmission system also includes two speed change chain transmission devices, one of which is provided between the output end of the gearbox and the first lifting drive sprocket on the same side; The speed change chain transmission device includes two or more speed change chain transmission mechanisms, each of which includes a speed change driving sprocket and a speed change driven sprocket connected by chain transmission, the diameter of the speed change driven sprocket is larger than the diameter of the speed change driving sprocket, the speed change driven sprocket of the speed change chain transmission mechanism of the previous stage drives the speed change driving sprocket of the speed change chain transmission mechanism of the next stage, the speed change driving sprocket of the first stage of the speed change chain transmission mechanism is connected to the output end of the gearbox, and the speed change driven sprocket of the last stage is connected to the first lifting driving sprocket.

5. The root crop harvesting device according to claim 1, characterized in that: The walking mechanism comprises a chain rail driving wheel, a chain rail supporting wheel and a chain rail wound around the chain rail driving wheel and the chain rail supporting wheel. The chain rail driving wheel is fixedly mounted on the second transmission shaft.

6. The root crop harvesting device according to claim 1, characterized in that: The harvesting device includes a shovel device and a screening device. The shovel device is used to shovel crops out of the field and transport them to the screening device. The screening device is used to separate soil attached to the crops. The engine drives the shovel device and the screening device to operate through a harvesting transmission system.

7. The root crop harvesting device according to claim 6, characterized in that: The shovel device includes a shovel, two first connecting rods hinged to the left and right sides of the frame respectively, and two second connecting rods hinged to the first connecting rods one by one. The shovel is fixed between the lower ends of the two first connecting rods, and the engine drives the second connecting rods to move through the harvesting transmission system.

8. The root crop harvesting device according to claim 7, characterized in that: The screening device comprises a coarse screen square chain row and a fine screen square chain row, the front end of the fine screen square chain row is located below the rear end of the coarse screen square chain row, and the width of the squares of the coarse screen square chain row is greater than the width of the squares of the fine screen square chain row; The coarse screen square chain row is wound on the coarse screen driving sprocket and the coarse screen driven sprocket, the coarse screen driving sprocket is fixed on the coarse screen driving sprocket shaft, and the coarse screen driven sprocket is fixed on the coarse screen driven sprocket shaft; The fine screen square chain row is wound on a fine screen driving sprocket and a fine screen driven sprocket. The fine screen driving sprocket is fixed on a fine screen driving sprocket shaft, and the fine screen driven sprocket is fixed on a fine screen driven sprocket shaft.

9. The root crop harvesting device according to claim 8, characterized in that: A crushing roller is arranged above the coarse screen square chain row.

10. The root crop harvesting device according to claim 9, characterized in that: The harvesting transmission system comprises a first harvesting transmission shaft driven by the engine, a driving gear fixed on the first harvesting transmission shaft, a second harvesting transmission shaft and a driven gear fixed on the second harvesting transmission shaft, wherein the driving gear and the driven gear are meshed; A coarse screen driving active sprocket is fixed on the second harvesting transmission shaft, a coarse screen driving driven sprocket is fixedly connected to the coarse screen driving sprocket shaft, and the coarse screen driving active sprocket and the coarse screen driving driven sprocket are connected via a chain transmission; A fine screen driving driving sprocket is fixed on the coarse screen driving sprocket shaft, a fine screen driving driven sprocket is fixedly connected to the fine screen driving sprocket shaft, and the fine screen driving driving sprocket is drivingly connected to the fine screen driving driven sprocket through a chain; A crushing roller driving sprocket is fixed at one end of the second harvesting transmission shaft, a crushing roller driving driven sprocket is fixed at one end of the crushing roller, and the crushing roller driving sprocket and the crushing roller driving driven sprocket are connected through a chain transmission; The second connecting rod is mounted on the second harvesting transmission shaft through an eccentric bearing; A clutch is provided on the first harvesting transmission shaft, and the clutch includes a moving side wheel and a stationary side wheel. The moving side wheel is slidably mounted on the first harvesting transmission shaft through a spline, and the stationary side wheel is rotatably mounted on the first harvesting transmission shaft. The engine drives the stationary side wheel to rotate.

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