Front rotary tillage floating type seeding device for potatoes

Abstract

The utility model provides a potato front rotary tillage floating type seeding device which comprises a rotary cultivator, a fertilizer box, a floating device, a chassis rack, a seed box assembly, a land wheel transmission knot, a rotary tillage soil covering device and a film covering device, the rotary cultivator is connected with a tractor through a three-point suspension and a universal joint, and the upper portion of the rotary cultivator is connected with the fertilizer box and the floating device. The fertilizer box is installed on the upper portion of the rotary cultivator, the floating device is connected with the rotary cultivator and the chassis rack, the seed box assembly is installed on the upper portion of the chassis rack, a speed change chain wheel is arranged in the seed box assembly, the land wheel transmission structure is connected with the chassis rack, and the land wheel transmission structure rubs against the ground to rotate to provide power for the seed box assembly. The whole machine is hung at the rear end of a tractor through a tractor device, the machine is dragged by the tractor to advance, power is provided through rotation of the land wheels to enable the speed of the seed box to be changed to complete seed metering, and the potato seeding machine can be used for potato seeding and has the advantages of rotary tillage, floating, ditching, fertilizing, seeding, rotary tillage earthing, film mulching and pesticide spraying.

Description

Technical Field

[0001] The utility model belongs to the field of agricultural machinery, in particular to a front rotary tillage floating sowing device for potatoes. Background Art

[0002] Potatoes are the largest grain crop in my country in terms of planting area. They are also an important dual-purpose grain and vegetable crop, and an important industrial raw material. In addition, the growing period of potatoes is short, and potato planting does not require the use of a lot of chemical fertilizers and pesticides. Potato planting has little negative impact on environmental pollution and will not cause serious pollution to soil and water sources. Planting potatoes can reduce the use of pesticides and chemical fertilizers, and reduce the impact of crops on the environment. The planting area of potatoes in my country is extremely large. Potatoes are highly adaptable and can grow under various climatic conditions. They have high yields and are resistant to storage. These characteristics make them occupy an important position in agricultural production. At the same time, potatoes also have high economic value. Their derivative products such as potato starch and French fries have broad market demand, which further promotes their widespread planting in my country. The agronomic requirements for potato planting are complex and diverse. The existing potato sowing devices have a single function and cannot complete multiple basic functions at one time. In addition, the sowing depth is not easy to control, resulting in low sowing efficiency.

[0003] Therefore, in view of the shortcomings of the above-mentioned scheme in actual production and implementation, it has been revised and improved. At the same time, in the spirit and concept of seeking excellence, with the assistance of professional knowledge and experience, and after many ingenuity and experiments, the present utility model was created to provide a potato front rotary tillage floating sowing device to solve the problem. Utility Model Content

[0004] The utility model proposes a potato front rotary tillage floating sowing device, which can complete basic functions such as fertilizing, furrowing, sowing, and mulching at one time, improves sowing efficiency and precision, can adapt to different plots of land, and can sow more accurately according to agronomic needs, and solves the problem that the potato sowing device in the prior art has a single function and cannot complete multiple basic functions at one time, and the sowing depth is difficult to control, resulting in low sowing efficiency.

[0005] The technical solution of the present invention is achieved as follows: a potato front rotary tillage floating sowing device, comprising: a rotary tiller, a fertilizer box, a floating device, a chassis frame, a seed box assembly, a ground wheel transmission structure, a rotary tillage covering device and a film covering device. The rotary tiller is connected to the tractor, the fertilizer box and the floating device above through a three-point suspension and a universal joint. The power is provided by the tractor and transmitted to the rotary tiller through the universal joint. The fertilizer box is installed on the upper part of the rotary tiller. The fertilizer is filled with fertilizer. When the rotary tiller is working, the fertilizer can be sprinkled on the land after rotary tillage. The floating device connects the rotary tiller and the chassis frame. The chassis frame can carry the seed box assembly and provide an installation position for the ground wheel transmission structure. The floating device can make the seeder a floating structure. The floating The device has a parallelogram structure and is floated up and down by a rotary tiller. The seed box assembly is installed on the upper part of the chassis frame, and a variable speed sprocket is provided in the seed box assembly. The seed box assembly can broadcast different plant spacings by adjusting different speed ratios. The ground wheel transmission structure is connected to the chassis frame, and the ground wheel transmission structure rotates by friction with the ground to provide power for the seed box assembly, which can be transmitted to the seed box assembly through the sprocket to change the speed to complete seeding. The rotary tillage and covering device is connected to the chassis frame and the film covering device, and relies on the rotary tillage machine gearbox to connect the rotary tillage and covering device gearbox to provide power to achieve the covering effect. The film covering device is connected to the rotary tillage and covering device, and the two sides of the ground film are pressed by the film pressing wheel, and finally the covering shovel presses the soil on the ground film.

[0006] As a preferred embodiment, the rotary tiller includes a three-point suspension, a gearbox, a front rotary tiller shaft, a front rotary tiller blade, a front rotary tiller bearing seat, a frame and a front shovel blade. The three-point suspension and the chassis frame are connected to the tractor as a whole, and the rotary tiller is driven to rise and fall by the tractor hydraulic device. The gearbox is installed on the upper part of the frame, and the gearbox provides power for the front rotary tiller shaft. The front rotary tiller blades are evenly spaced and installed on the upper part of the front rotary tiller shaft. The rotary tiller bearing seat is installed on the other side of the front rotary tiller shaft, and the rotary tiller bearing seat connects the rotary tiller shaft and the frame.

[0007] As a preferred embodiment, the fertilizer box includes a fertilizer box grid, a fertilizer box main board, a motor, a fertilizer box side panel, a hexagonal shaft, a medicine box drive shaft, a medicine box, a fertilizer box, a fertilizer box chain, a double-arm crank, an adjustment handle and a fertilizer tube. The fertilizer box grid is fixedly mounted on the support plate inside the fertilizer box main board, and the fertilizer box grid is used to catch the fertilizer that has clumped into a block. The motor is mounted on the fertilizer box side panel, and provides power to the medicine box and the fertilizer box by driving the hexagonal shaft and the medicine box drive shaft. The hexagonal shaft and the medicine box drive shaft are linked with the fertilizer box chain transmission. The double-arm crank drives the hexagonal shaft to rotate, which can control the amount of fertilizer dropped. The adjustment handle controls the extension and retraction of the medicine box drive shaft to adjust the size of the medicine dropped, and the fertilizer granules fall into the soil through the fertilizer tube.

[0008] As a preferred embodiment, the floating device includes a square tube, a connecting plate, a bolt, a through-shaft and a through-tube. The square tube and the connecting plate are connected together by bolts to form a parallelogram structure. The parallelogram structure can make the rotary tiller and the chassis frame independent and freely control the rotary tillage. The floating device can also separate the rotary tiller and the chassis frame, so that the rotary tiller can adjust the rotary tillage depth independently, while the height of the chassis frame is not affected. The different installation holes of the through-shaft and the through-tube can enable the rotary tiller to reach different working depths. The through-shaft and the through-tube can control the floating or fixation of the floating device, thereby better adapting to and meeting different agronomic requirements.

[0009] As a preferred embodiment, the seed box assembly includes a seed barrel, a seed spoon, a seed box, a seed box bridge sprocket, a seed barrel hexagonal connecting shaft, a seed spoon chain and a seed pushing device. The seed box bridge sprocket is connected to the transmission sprocket through a chain, and the seed barrel relies on the seed barrel hexagonal connecting shaft to drive the seed spoon chain to rotate. The seed spoon chain is sleeved in the seed barrel, and the seed spoons are evenly fixed on the seed spoon chain. A seed pushing device is provided on the lower side of the seed box.

[0010] As a preferred embodiment, the ground wheel transmission structure includes a ground wheel, a ground wheel shaft and a transmission sprocket. The ground wheel is synchronously linked with the seed barrel. The ground wheel is connected to the ground wheel shaft, and its transmission sprocket is installed on the ground wheel shaft. The ground wheel provides power by rotating.

[0011] As a preferred embodiment, the rotary tillage and soil covering device includes a rear rotary tillage blade, a rear rotary tillage shaft, a reversing box and a scraper plate. The reversing box is connected to the rotary tiller, and the rear rotary tillage blade is connected to the reversing box through the rear rotary tillage shaft. The direction can be changed through the reversing box. A scraper plate is installed on the rear side of the reversing box, which can be powered by the rotary tillage gearbox connected to the rotary tillage and soil covering device gearbox to achieve soil covering.

[0012] As a preferred embodiment, the film covering device includes a film covering clip mounting assembly, a hydraulic cylinder, a film hanging rod assembly, a film pressing wheel and a film covering shovel. The film covering clip mounting assembly connects the film covering device to the rear end of the chassis frame. The film covering device can be folded by the hydraulic cylinder, the film covering device can be freely disassembled, and a plurality of mating connection points are provided on the film covering device. The ground film is installed on the upper part of the film hanging rod assembly, and the film pressing wheel and the film covering shovel are installed on the lower side of the film covering clip mounting assembly. The ground film is pressed twice by the film pressing wheel, and finally the soil is pressed on the ground film by the film covering shovel to complete the whole process.

[0013] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: the seed box assembly is installed on the chassis frame, power is obtained by friction between the ground wheel transmission structure and the ground, the ground wheel shaft drives the seed box bridge sprocket to transmit power to the fertilizer box assembly, the rotary tillage and soil covering device and the chassis frame are integrated into a whole, and power is obtained through the rotary tiller reversing box connection to perform rotary tillage and soil covering, and the rear end is connected to the covering device to complete the covering of the soil, the affiliated mechanism is used in conjunction with the tractor, and the whole machine is hung on the rear end of the tractor by the tractor device, and the machine is pulled forward by the tractor, and power is provided by the rotation of the ground wheel to make the seed box change speed to complete the seeding, which can be used for potato sowing. The utility model has the characteristics of rotary tillage, floating, ditching, fertilizing, sowing, rotary tillage and soil covering, film covering and spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic structural diagram of a rotary tiller according to the present invention;

[0017] Figure 3 This is a schematic diagram of the fertilizer box structure of the present utility model;

[0018] Figure 4 This is a schematic diagram of the motor structure of the utility model;

[0019] Figure 5 This is a schematic structural diagram of the floating device of the present utility model;

[0020] Figure 6 This is a schematic diagram of the chassis frame structure of the present utility model;

[0021] Figure 7 This is a schematic diagram of the seed barrel structure of the utility model;

[0022] Figure 8 This is a schematic structural diagram of the seed pushing device of the present utility model;

[0023] Figure 9 This is a schematic diagram of the ground wheel transmission structure of the present utility model;

[0024] Figure 10 This is a schematic structural diagram of the rotary tillage and soil covering device of the present utility model;

[0025] Figure 11This is a schematic diagram of the transmission structure of the laminating device of the present utility model;

[0026] In the figure, 1-rotary tiller; 2-fertilizer box; 3-floating device; 4-chassis frame; 5-seed box assembly; 6-ground wheel transmission structure; 7-rotary tillage covering device; 8-film covering device; 11-three-point suspension; 12-gearbox; 13-front rotary tillage shaft; 14-rotary tillage blade; 15-rotary tillage bearing seat; 16-frame; 17-front shovel blade; 21-fertilizer box grid; 22-fertilizer box main board; 23-motor; 24-fertilizer box side panel; 25-hexagonal shaft; 26-medicine box transmission shaft; 27-medicine box; 28-lower fertilizer box; 29-fertilizer box chain; 30-double-arm crank; 31-adjustment Handle; 32-fertilizer pipe; 33-square tube; 34-connecting plate; 35-through bolt; 36-through shaft; 37-through tube; 51-seed barrel; 551-seed spoon; 52-seed box; 53-seed box bridge sprocket; 54-seed barrel hexagonal connecting shaft; 56-seed spoon chain; 55-seed pushing device; 61-ground wheel; 62-ground wheel shaft; 63-transmission sprocket; 72-rotary tillage blade; 73-rear rotary tillage shaft; 74-reversing box; 75-scraping plate; 81-film covering clip installation assembly; 82-hydraulic cylinder; 83-film hanging rod assembly; 84-film pressing wheel; 85-film covering shovel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figure 1-11As shown, a potato front rotary tillage floating sowing device includes: a rotary tiller 1, a fertilizer box 2, a floating device 3, a chassis frame 4, a seed box assembly 5, a ground wheel transmission structure 6, a rotary tillage covering device 7 and a film covering device 8. The rotary tiller 1 is connected to the tractor through a three-point suspension and a universal joint, and the fertilizer box 2 and the floating device 3 are connected above. The tractor provides power and transmits it to the rotary tiller 1 through the universal joint. The fertilizer box 2 is installed on the upper part of the rotary tiller 1. The fertilizer box 2 is filled with fertilizer. When the rotary tiller 1 is working, the fertilizer can be sprinkled on the land after rotary tillage. The floating device 3 connects the rotary tiller 1 and the chassis frame 4. The chassis frame 4 can carry the seed box assembly 5 and provide an installation position for the ground wheel transmission structure 6. The floating device 3 can make the seeder a floating structure. The floating device 3 is flat The quadrilateral structure is floated up and down by the rotary tiller 1. The seed box assembly 5 is installed on the upper part of the chassis frame 4. A speed-changing sprocket is provided in the seed box assembly 5. The seed box assembly 5 can broadcast different plant spacings by adjusting different speed ratios. The ground wheel transmission structure 6 is connected to the chassis frame 4. The ground wheel transmission structure 6 rotates with the ground frictionally to provide power for the seed box assembly 5. The power can be transmitted to the seed box assembly 5 through the sprocket to change the speed to complete the seeding. The rotary tillage and covering device 7 is connected to the chassis frame 4 and the film covering device 8. The rotary tillage and covering device 7 is connected to the gearbox of the rotary tiller 1 to provide power for the gearbox to realize the covering effect. The film covering device 8 is connected to the rotary tillage and covering device 7, and the two sides of the ground film are pressed by the film pressing wheel 84. Finally, the covering shovel presses the soil on the ground film.

[0029] Furthermore, the rotary tiller 1 includes a three-point suspension 11, a gearbox 12, a front rotary tiller shaft 13, a front rotary tiller blade 14, a rotary tiller bearing seat 15, a frame 16 and a front shovel blade 17. The three-point suspension 11 and the chassis frame 4 are connected to the tractor as a whole, and the rotary tiller 1 is driven up and down by the tractor hydraulic device. The gearbox 12 is installed on the upper part of the frame 16. The gearbox 12 provides power for the front rotary tiller shaft 13. The front rotary tiller blades 14 are evenly spaced and installed on the upper part of the front rotary tiller shaft 13. The rotary tiller bearing seat 15 is installed on the other side of the front rotary tiller shaft 13. The rotary tiller bearing seat 15 connects the front rotary tiller shaft 13 and the frame 16.

[0030] Furthermore, the fertilizer box 2 includes a fertilizer box grid 21, a fertilizer box main board 22, a motor 23, a fertilizer box side plate 24, a hexagonal shaft 25, a medicine box drive shaft 26, a medicine box 27, a fertilizer box 28, a fertilizer box chain 29, a double-arm crank 30, an adjusting handle 31 and a fertilizer tube 32. The fertilizer box grid 21 is fixedly mounted on the support plate inside the fertilizer box main board 22, and the fertilizer box grid 21 is used to catch the fertilizer that has been agglomerated. The motor 23 is mounted on the fertilizer box side plate 24, and provides power to the medicine box 27 and the fertilizer box 28 by driving the hexagonal shaft 25 and the medicine box drive shaft 26. The hexagonal shaft 25 and the medicine box drive shaft 26 are linked with the fertilizer box chain 29. The double-arm crank 30 drives the hexagonal shaft 25 to rotate, which can control the amount of fertilizer dropped. The adjusting handle 31 controls the extension and retraction of the medicine box drive shaft to adjust the size of the medicine dropped, and the fertilizer granules fall into the soil through the fertilizer tube 32.

[0031] Furthermore, the floating device 3 includes a square tube 33, a connecting plate 34, a bolt 35, a through shaft 36 and a through tube 37. The square tube 33 and the connecting plate 34 are connected together by bolts 35 to form a parallelogram structure. The parallelogram structure can make the rotary tiller 1 and the chassis frame 4 independent and freely control the rotary tillage. The floating device 3 can also separate the rotary tiller 1 and the chassis frame 4, so that the rotary tiller 1 can adjust the rotary tillage depth alone, while the height of the chassis frame 4 is not affected. The different installation holes of the through shaft 36 and the through tube 37 can enable the rotary tiller 1 to reach different working depths. The through shaft 36 and the through tube 37 can control the floating or fixation of the floating device 3, thereby better adapting to and meeting different agronomic requirements.

[0032] Furthermore, the seed box assembly 5 includes a seed barrel 51, a seed spoon 551, a seed box 52, a seed box bridge sprocket 53, a seed barrel hexagonal connecting shaft 54, a seed spoon chain 56 and a seed pushing device 55. The seed box bridge sprocket 53 is connected to the transmission sprocket 63 through a chain, and the seed barrel 51 relies on the seed barrel hexagonal connecting shaft 54 to drive the seed spoon chain 56 to rotate. The seed spoon chain 56 is sleeved in the seed barrel 51, and the seed spoons 551 are evenly fixed on the seed spoon chain 56. A seed pushing device 55 is provided on the lower side of the seed box 52.

[0033] Furthermore, the ground wheel transmission structure 6 includes a ground wheel 61, a ground wheel shaft 62 and a transmission sprocket 63. The ground wheel 61 is synchronously linked with the seed barrel 55. The ground wheel 61 is connected to the ground wheel shaft 62, and its transmission sprocket 63 is installed on the ground wheel shaft 62. The ground wheel 61 provides power by rotating.

[0034] Furthermore, the rotary tillage and soil covering device 7 includes a rear rotary tillage blade 72, a rear rotary tillage shaft 73, a reversing box 74 and a scraper plate 75. The reversing box 74 is connected to the rotary tiller 1, and the rear rotary tillage blade 72 is connected to the reversing box 74 through the rear rotary tillage shaft 73. The direction can be changed through the reversing box 74. The rear side of the reversing box 74 is equipped with a scraper plate 75, which can be powered by the rotary tillage gearbox connected to the rotary tillage and soil covering device gearbox to achieve soil covering.

[0035] Furthermore, the film covering device 8 includes a film covering clip installation component 81, a hydraulic cylinder 82, a film hanging rod assembly 83, a film pressing wheel 84 and a film covering shovel 85. The film covering clip installation component 81 connects the film covering device 8 to the rear end of the chassis frame 4. The film covering device 8 can be controlled to fold by the hydraulic cylinder 82. The film covering device 8 can be freely disassembled, and a plurality of mating connection points are provided on the film covering device 8. The upper part of the film hanging rod assembly 83 is installed with a ground film, and the lower side of the film covering clip installation component 81 is installed with a film pressing wheel 84 and a film covering shovel 85. The ground film is pressed twice by the film pressing wheel 84, and finally the soil is pressed on the ground film by the film covering shovel 85 to complete the whole process.

[0036] The principle of the utility model is that the power structure transmits power to the rotary tiller through the gearbox, and the rotary tiller is driven forward as the tractor moves. The rotary tiller tills the uneven land and levels it. The depth of the rotary tiller is adjusted by lifting and lowering. The rear retaining plate can prevent soil from splashing after tilling. The rotary tiller gearbox is equipped with two rotary tilling shafts, which are connected to the rotary tiller frame by bolts. The rotary tilling blades are evenly installed on the rotary tilling shafts by bolts, which are easy to disassemble and replace. Different widths of rotary tillage can be performed, and different rotary tillage depths can be performed by replacing different sizes of rotary tilling blades. The front shovel blade of the gearbox can be installed using the mounting hole at the front end of the rotary tiller gearbox, which can effectively dig trenches and remove soil, reduce resistance, and prevent the gearbox from being subjected to large forces, bumps, and deformations. The fertilizer box is installed on the upper part of the rotary tiller, and the fertilizer box grid in the fertilizer box is fixedly installed on the support plate inside the fertilizer box main board to catch the soil. The fertilizer is in chunks to prevent it from clogging the fertilizer box after entering. It works synchronously with the rotary tiller. After the rotary tillage is completed, the fertilizer is evenly spread on the tilled land. The fertilizer box is fertilized by a motor. Four fertilizer boxes are installed on the fertilizer box. The motor is connected to the hexagonal shaft, which is connected to the four fertilizer boxes through the hexagonal shaft to make them work synchronously to ensure uniform fertilizer distribution. There is an adjusting piece in the fertilizer box. The four adjusting pieces are connected to the fertilizer amount adjusting rod through bolts. The amount of fertilizer can be controlled by rotating the fertilizer box adjusting handle. The medicine box is fixed to the fertilizer box with bolts for easy disassembly and installation. It can be selected according to local agronomic conditions. A sprocket is installed on the drive shaft of the medicine box and is linked to the hexagonal shaft sprocket of the fertilizer box to ensure that the fertilizer and granular medicine are evenly proportional. The adjusting handle is installed on the medicine box and connected to the drive shaft of the medicine box. The extension and contraction of the drive shaft of the medicine box is controlled by rotating the adjusting handle to adjust the size of the medicine.

[0037] The floating device is a parallelogram structure consisting of a square tube and a connecting plate connected together by bolts. The connecting plate can be removed and replaced to achieve different floating strokes. The longer the connecting plate, the greater the stroke, while the shorter the connecting plate, the smaller the stroke. Different mounting holes for the shaft and tube allow the rotary tiller to reach different operating depths, better adapting to and meeting different agronomic requirements. The frame is also equipped with a seed shovel assembly, which will create a trench in the land as the machine moves, allowing seeds to fall into the opened trench. The ground wheel provides power through rotation, driving the seed barrel synchronously. The seed box chain tensioning assembly is bolted to the seed barrel support frame. By adjusting different speed ratios, different plant spacings can be sown. The ground wheel transmission structure provides power to change the speed of the seed box assembly to complete the seeding, pushing and other operations. The two seed barrel chains are connected together by a hexagonal shaft. As the machine moves forward, the power brought by the ground wheel is transmitted to the bridge assembly, thereby driving the seed spoon chain to rotate at a uniform speed, digging out seeds from the seed barrel to complete sowing. The ground wheel transmission structure is connected to the chassis frame and rotates with the friction of the ground to provide power for the seed box assembly to complete seeding. The rotary tillage and covering device includes a rotary tillage knife and a scraper plate, which are connected to the chassis frame and the covering device. The rotary tillage and covering device gearbox is connected to the rotary tillage and covering device gearbox to provide power to achieve the covering effect. The rotary tillage knife is fixed to the welding seat with bolts. There are two sets of holes on the welding seat, which can be installed according to different usage requirements. The scraper plate is installed behind the rotary tillage and covering device and is fixed by screws. The upper and lower heights can be adjusted to achieve different ridge heights. The front end of the covering device is equipped with a ditch cleaning shovel to clear debris in the ditch in advance before the covering process to prevent the film from being scratched during covering. The film is installed on the film hanging bent beam assembly through the film hanging rod, and then the film is pressed into the soil. As the machine moves forward, the film is pulled out. While covering the film, the film is pressed by the film pressing wheel to prevent the film from falling off the ridge surface. Finally, the soil blocks are pressed onto the ground film through the covering shovel.

[0038] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A potato front rotary tillage floating sowing device, comprising: A rotary tiller (1), a fertilizer box (2), a floating device (3), a chassis frame (4), a seed box assembly (5), a ground wheel transmission structure (6), a rotary tillage and soil covering device (7) and a film covering device (8), characterized in that the rotary tiller (1) is connected to a tractor, a fertilizer box (2) and a floating device (3) above through a three-point suspension and a universal joint, the fertilizer box (2) is installed on the upper part of the rotary tiller (1), the floating device (3) connects the rotary tiller (1) and the chassis frame (4), the seed box assembly (5) is installed on the upper part of the chassis frame (4), a speed change sprocket is provided in the seed box assembly (5), the ground wheel transmission structure (6) is connected to the chassis frame (4), the ground wheel transmission structure (6) rotates with the ground frictionally to provide power for the seed box assembly (5), the rotary tillage and soil covering device (7) is connected to the chassis frame (4) and the film covering device (8), and the film covering device (8) is connected to the rotary tillage and soil covering device (7).

2. The potato front rotary tillage floating sowing device according to claim 1, characterized in that: The rotary tiller (1) comprises a three-point suspension (11), a gearbox (12), a front rotary tiller shaft (13), a front rotary tiller blade (14), a rotary tiller bearing seat (15), a frame (16) and a front shovel blade (17). The three-point suspension (11) and the chassis frame (4) are connected to the tractor as a whole. The gearbox (12) is installed on the upper part of the frame (16). The gearbox (12) provides power for the front rotary tiller shaft (13) to work. The front rotary tiller blades (14) are evenly spaced and installed on the upper part of the front rotary tiller shaft (13). The rotary tiller bearing seat (15) is installed on the other side of the front rotary tiller shaft (13). The rotary tiller bearing seat (15) connects the front rotary tiller shaft (13) and the frame (16).

3. The potato front rotary tillage floating sowing device according to claim 1, characterized in that: The fertilizer box (2) comprises a fertilizer box grid (21), a fertilizer box main board (22), a motor (23), a fertilizer box side plate (24), a hexagonal shaft (25), a medicine box transmission shaft (26), a medicine box (27), a lower fertilizer box (28), a fertilizer box chain (29), a double-arm crank (30), an adjustment handle (31) and a lower fertilizer pipe (32). The fertilizer box grid (21) is fixedly mounted on a support plate in the fertilizer box main board (22). The motor (23) is mounted on the fertilizer box side plate (24) and provides power to the medicine box (27) and the lower fertilizer box (28). The hexagonal shaft (25) and the medicine box transmission shaft (26) are driven by the fertilizer box chain (29) to realize linkage. The double-arm crank (30) drives the hexagonal shaft (25) to rotate.

4. The potato front rotary tillage floating sowing device according to claim 1, characterized in that: The floating device (3) comprises a square tube (33), a connecting plate (34), a through-shaft (36) and a through-tube (37), wherein the square tube (33) and the connecting plate (34) are connected together by the bolts (35) to form a parallelogram structure, and different installation hole positions of the through-shaft (36) and the through-tube (37) enable the rotary tiller (1) to reach different operating depths.

5. The potato front rotary tillage floating sowing device according to claim 1, characterized in that: The seed box assembly (5) includes a seed barrel (51), a seed spoon (551), a seed box (52), a seed box bridge sprocket (53), a seed barrel hexagonal connecting shaft (54), a seed spoon chain (56) and a seed pushing device (55). The seed box bridge sprocket (53) is connected to a transmission sprocket (63) through a chain. The seed barrel (51) drives the seed spoon chain (56) to rotate by relying on the seed barrel hexagonal connecting shaft (54). The seed spoon chain (56) is sleeved in the seed barrel (51). The seed spoons (551) are evenly spaced and fixed on the seed spoon chain (56). The seed box (52) is provided with a seed pushing device (55) on the lower side.

6. The potato front rotary tillage floating sowing device according to claim 1, characterized in that: The ground wheel transmission structure (6) comprises a ground wheel (61), a ground wheel shaft (62) and a transmission sprocket (63). The ground wheel (61) is synchronously linked with the seed barrel (51). The ground wheel (61) is connected to the ground wheel shaft (62), and the transmission sprocket (63) is installed on the ground wheel shaft (62).

7. The potato front rotary tillage floating sowing device according to claim 1, characterized in that: The rotary tillage and soil covering device (7) comprises a rear rotary tillage blade (72), a rear rotary tillage shaft (73), a reversing box (74) and a scraping plate (75); the reversing box (74) is connected to the rotary tiller (1); the rotary tillage blade (72) is connected to the reversing box (74) via the rotary tillage shaft (73); and the scraping plate (75) is installed on the rear side of the reversing box (74).

8. The potato front rotary tillage floating sowing device according to claim 1, characterized in that: The film covering device (8) includes a film covering clamp mounting assembly (81), a hydraulic cylinder (82), a film hanging rod assembly (83), a film pressing wheel (84) and a film covering shovel (85). The film covering clamp mounting assembly (81) connects the film covering device (8) to the rear end of the chassis frame (4). The film covering device (8) can be controlled to fold by the hydraulic cylinder (82). A ground film is installed on the upper part of the film hanging rod assembly (83). The film pressing wheel (84) and the film covering shovel (85) are installed on the lower side of the film covering clamp mounting assembly (81).

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