Stubble strong-supporting crushing cutter group and bionic opening and closing shovel low-soil-disturbance root cutting device

Abstract

The invention relates to a stubble strong-supporting crushing cutter group and bionic opening and closing shovel low-soil-disturbance root cutting device. The stubble strong-supporting crushing cutter group and bionic opening and closing shovel low-soil-disturbance root cutting device comprises a rack, a three-point suspension frame, a coaxial forward and reverse rotation stubble cutting mechanism and an inclined crank sliding block root cutting mechanism. The coaxial forward and reverse rotation stubble cutting mechanism drives cutterheads located on a cutter roller shaft and a shaft sleeve to rotate forwards and backwards through a gear set, the cutterheads are integrated with three cutters which are gradually decreased in size and complementary in function, stubble gathering, clamping and efficient supporting and crushing are achieved, the forward speed of the machine is balanced through a horizontal speed component generated by an inclined crank sliding block mechanism, and therefore the stubble cutting efficiency is improved. In the working process of the machine tool, the shovel wings can vertically enter and exit from soil relative to the ground, the shovel wings are prevented from generating more soil return belts when exiting from the soil due to advancing inertia of the machine tool, the shovel wings are designed to be in a shovel shape imitating Bongtian wings, soil entering resistance can be reduced, the shovel wings are hinged through hinges, and the shovel wings are flexibly opened and closed to adapt to root distribution when exiting from the soil and entering into the soil in cooperation with telescopic motors. The shovel surface is provided with a raised grain soil loosening guide rail, an internal notch is integrated with a resistance wire for heating and resistance reduction, and soil adhesion during root cutting is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and mainly to a stubble strong support crushing blade group and a biomimetic opening and closing shovel low-disturbance soil severing root device. Background Technology

[0002] Traditional methods of stubble processing are inefficient and suffer from problems such as under-cutting, incomplete cutting, and incomplete crushing, resulting in large stubble residues, soil compaction, and damage to soil aggregate structure. Existing stubble crushing devices are limited in function, with most only capable of one of the functions of chopping or breaking roots. They do not penetrate the soil deeply enough, resulting in incomplete root breaking, a large amount of soil being carried back, and the remaining large stubble residues affecting seed implantation and thus crop yield. They are unable to meet the requirements of modern agriculture for refined and efficient production. Summary of the Invention

[0003] This device integrates a coaxial forward and reverse stubble cutting mechanism and an inclined crank-slider root-cutting mechanism. The coaxial forward and reverse stubble cutting mechanism is equipped with three functional blades arranged circumferentially on the cutter disc. The gear set drives the cutter roller shaft and roller sleeve to form a coaxial forward and reverse structure, realizing the gathering, clamping and chopping of root stubble, completing forward and reverse support cutting, and improving the crushing effect of the stubble. The inclined crank-slider root-cutting mechanism is equipped with a telescopic motor to drive the root-cutting shovel that imitates the wings of an albatross. With the left and right hinges and the openable design, combined with the corrugated guide rail on the shovel blade entry surface to loosen the soil and the internal resistance wire heating to reduce drag, it can intermittently cut the roots vertically relative to the ground, accurately cut the root system and reduce soil adhesion.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A stubble strong support crushing blade group and a biomimetic opening and closing shovel low-disturbance root cutting device includes a frame, a three-point suspension frame, a coaxial forward and reverse stubble cutting mechanism, and an inclined crank slider root cutting mechanism. The front end of the frame is fixedly connected to the three-point suspension frame, the coaxial forward and reverse stubble cutting mechanism is fixedly connected to the lower front end of the frame, and the inclined crank slider root cutting mechanism is fixedly connected to the lower rear end of the frame.

[0006] The coaxial forward and reverse reversible cutting mechanism is characterized by the fact that both the battery and the first motor are fixedly connected to the upper part of the frame. The battery and the first motor are connected via a power cable. The first bevel gear is concentrically fixed to the output shaft of the first motor, and the second bevel gear is concentrically fixed to the cutter roller shaft. The cutter roller shaft is rotatably mounted on the front end of the upper part of the frame. The first bevel gear meshes with the second bevel gear. The fourth spur gear is fixed to the cutter roller shaft, and the third spur gear is fixed to the cutter roller shaft sleeve. The second tripod is fixed to the cutter roller shaft, and the first tripod is fixed to the cutter roller shaft sleeve. The second tripod and the first tripod... Each frame has three identical holes inside, forming the three vertices of an equilateral triangle to ensure accurate gear meshing. The first spur gear is concentrically fixed to the first short shaft, and the second spur gear is concentrically fixed to the second short shaft. One end of the first short shaft is hinged to a hole at one vertex of the second frame, and the other end is hinged to a hole on the first frame at the corresponding vertex of the second frame. Similarly, one end of the second short shaft is hinged to a hole at one vertex of the second frame, and the other end is hinged to a hole on the first frame at the corresponding vertex of the second frame. At the apex, the first spur gear meshes with the second and fourth spur gears, and the second spur gear meshes with the third spur gear. The cutter roller sleeve is rotatably mounted on the cutter roller shaft. The first gathering knife, the second gathering knife, the first clamping knife, the second clamping knife, the first shaving knife, and the second shaving knife are arranged circumferentially around the cutter disc at equal angles. The first gathering knife and the second gathering knife have the same structure but increase in size, and both have crescent-shaped blades with sharpening on the concave side. The first clamping knife and the second clamping knife have the same structure but increase in size, and both have wavy blades. The blades are sharpened on both sides. The first and second cutting blades have the same structure but increasing size. Both blades are arc-shaped with a single edge around the minor arc. Among all the blades, the first cutting blade is the smallest and the second gathering blade is the largest. The four blade discs are equidistantly fixed on the blade roller sleeve and the blade roller shaft along the axial direction. Two blade discs are fixed on the blade roller sleeve and two blade discs are fixed on the blade roller shaft. The cutting edges of the two blade discs fixed on the blade roller sleeve are distributed counterclockwise (view from above), while the cutting edges of the two blade discs fixed on the blade roller shaft are distributed clockwise (view from above).

[0007] The inclined crank-slider root-breaking mechanism is characterized by a housing fixed to the lower part of the frame at the front end, with the upper surface of the housing at a 45° angle to the upper plane of the frame. A crank shaft is rotatably mounted inside the housing at the front end. The crank is fixed to the shaft of a second motor, which is fixed to the right side of the frame. The second motor is connected to a battery via a power cable. One end of a connecting rod is eccentrically hinged to the crank, and the other end is hinged to the slider shaft. The slider and connecting rod are hinged via the slider shaft. The slider passes through the rear end of the housing. The front end of the root-breaking shovel handle is fixed to the outer end of the slider. A telescopic motor is fixed inside the root-breaking shovel handle. The outer end of the telescopic motor's telescopic shaft is fixed to the connecting rod shafts of the left and right root-breaking shovels. The telescopic motor is connected to a battery via a power cable. A hinge connecting rod is fixed to the end of the root-breaking shovel handle. The right and left root-breaking shovels are respectively hinged to the left and right sides of the hinge connecting rod. The right root-breaking shovel connecting rod shaft and the left root-breaking shovel... The shovel connecting rod shafts are respectively fixed on the lower side of the right and left root cutting shovels near the shovel handle. One end of the right and left root cutting shovel connecting rods is hinged to the right and left root cutting shovel connecting rod shafts, respectively, and the other end is hinged to the left and right root cutting shovel connecting rod shafts. The structures of the right and left root cutting shovels are completely identical. The shovel wings are modeled after albatross wings, with the shovel tip swept back. The length-to-width ratio of the shovel body has drag-reducing characteristics during the shovel wing deployment. The shovel wing cross-section has a typical streamlined airfoil shape. The shovel surface has a corrugated soil-dredging guide rail structure. The root cutting shovel has multiple thermal resistance wire grooves with lengths matching the shovel shape. The number and shape of the thermal resistance wires match the thermal resistance wire grooves and are fixed in the thermal resistance wire grooves. One end of the thermal resistance wire is close to the side edge of the root cutting shovel, and the other end is close to the hinge connecting rod. The thermal resistance wire is connected to the battery through a power cable.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: The coaxial forward and reverse stubble cutting mechanism of the present invention has specially designed gathering blades, clamping blades, and stubble cutting blades arranged circumferentially around the cutter disc on the cutter roller shaft. The sizes are successively larger and smaller and their functions are complementary, realizing coaxial forward and reverse support for cutting root stubble, solving the problems of incomplete stubble breaking, low cutting efficiency, and missed cutting; the inclined crank slider is fixedly connected to the root cutting shovel, and the speed of movement along the slider axis is decomposed into a horizontal speed and a vertical speed. The horizontal speed balances the forward speed of the machine, realizing that the shovel body enters and exits the soil vertically relative to the ground surface to cut roots, avoiding soil between stubble, and solving the problem of large soil return of conventional machines; the root cutting shovel surface has a corrugated soil loosening guide rail, and the guide rail integrates thermal resistance to achieve heating and drag reduction. The shovel shape is biomimetic to albatross wings, which has excellent soil entry and drag reduction performance. The controllable opening and closing movement of the root cutting shovel is realized by telescopic motor and hinge. When entering the soil, the shovel surface gradually unfolds to cut the root system, and when exiting the soil, the shovel surface gradually closes, which greatly reduces the soil exit resistance. Attached Figure Description

[0009] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0010] In the attached diagram:

[0011] Figure 1 A schematic diagram of an overall device for a high-support stubble crushing blade assembly and a biomimetic opening and closing shovel for low-disturbance soil removal and root cutting.

[0012] Figure 2 Schematic diagram of coaxial forward and reverse reversing cutting mechanism

[0013] Figure 3 Schematic diagram of the inclined crank-slider root-breaking mechanism

[0014] Figure 4 Schematic diagram of a root-cutting shovel

[0015] Part numbers in the diagram: 1. Three-point suspension bracket; 2. Cutter roller shaft; 3. First bevel gear; 4. First motor; 5. Frame; 6. Battery; 7. Crank; 8. Connecting rod; 9. Second motor; 10. Housing; 11. Slider shaft; 12. Slider; 13. Root cutting shovel handle; 14. Telescopic motor; 15. Right root cutting shovel; 16. Right root cutting shovel connecting rod; 17. Left root cutting shovel connecting rod; 18. Left root cutting shovel; 19. First spur gear; 20. Second spur gear; 21. First triangular frame; 22. First cutting blade; 23. Cutter disc; 24. 25. Second cutting blade. 26. First clamping blade. 27. Second clamping blade. 28. First gathering blade. 29. Second gathering blade. 30. Blade roller bushing. 31. Third spur gear. 32. Fourth spur gear. 33. Suspension connecting rod. 34. Second tripod. 35. Second bevel gear. 36. First short shaft. 37. Second short shaft. 38. Hinge connecting rod. 39. Thermal resistance wire. 40. Right root cutting shovel connecting rod shaft. 41. Left root cutting shovel connecting rod shaft. 42. Left and right root cutting shovel connecting rod shafts. 43. Thermal resistance wire groove. 44. Crankshaft. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] The present invention will be further described in detail below with reference to the embodiments.

[0018] As shown in the figure, a specific embodiment of the stubble strong support crushing blade group and biomimetic opening and closing shovel low-disturbance root cutting device provided by the present invention is as follows:

[0019] A stubble strong support crushing blade group and a biomimetic opening and closing shovel low-disturbance root cutting device includes a frame 5, a three-point suspension frame 1, a coaxial forward and reverse stubble cutting mechanism, and an inclined crank slider root cutting mechanism. The front end of the frame 5 is fixedly connected to the three-point suspension frame 1, the coaxial forward and reverse stubble cutting mechanism is fixedly connected to the lower front end of the frame 5, and the inclined crank slider root cutting mechanism is fixedly connected to the lower rear end of the frame 5.

[0020] The coaxial forward and reverse reversible cutting mechanism is characterized in that the battery 6 and the first motor 4 are both fixedly connected to the upper part of the frame 5. The battery 6 and the first motor 4 are connected via a power cable. The first bevel gear 3 is concentrically fixed to the output shaft of the first motor 4. The second bevel gear 34 is concentrically fixed to the cutter roller shaft 2. The cutter roller shaft 2 is rotatably mounted on the upper front end of the frame 5. The first bevel gear 3 meshes with the second bevel gear 34. The fourth spur gear 31 is fixedly mounted on the cutter roller shaft 2. The third spur gear 30 is fixedly mounted on the cutter roller shaft sleeve 29. The second tripod 33 is fixedly connected to the cutter roller shaft 2. The first tripod 21 is fixedly connected to the cutter roller shaft sleeve 29. The second tripod 33 and the first tripod 21 are connected to the cutter roller shaft sleeve 29. Each tripod 21 has three identical holes inside, forming the three vertices of an equilateral triangle to ensure accurate gear meshing. The first spur gear 19 is concentrically fixed to the first short shaft 35, and the second spur gear 20 is concentrically fixed to the second short shaft 36. One end of the first short shaft 35 is hinged to a hole at one vertex of the second tripod 33, and the other end is hinged to a hole on the first tripod 21 at the corresponding vertex of the second tripod 33. Similarly, one end of the second short shaft 36 is hinged to a hole at one vertex of the second tripod 33, and the other end is hinged to a hole on the first tripod 21 at the corresponding vertex of the second tripod 33. The holes are arranged such that the first spur gear 19 meshes with the second spur gear 20 and the fourth spur gear 31 respectively, the second spur gear 20 meshes with the third spur gear 30, and the cutter roller sleeve 29 is rotatably mounted on the cutter roller shaft 2. The first gathering knife 27, the second gathering knife 28, the first clamping knife 25, the second clamping knife 26, the first shaving knife 22, and the second shaving knife 24 are arranged circumferentially around the cutter disc 23 at equal angles. The first gathering knife 27 and the second gathering knife 28 have the same structure but increase in size, and both have crescent-shaped blades with sharpening on the concave side. The first clamping knife 25 and the second clamping knife 26 have the same structure but increase in size, and both have wavy blades. The blades are sharpened on both sides of the blade. The first cutting blade 22 and the second cutting blade 24 have the same structure but increase in size. The blades are all arc-shaped with a single edge around the minor arc. Among all the blades, the first cutting blade 22 is the smallest and the second gathering blade 28 is the largest. The four blade discs 23 are fixedly mounted equidistantly on the blade roller sleeve 29 and the blade roller shaft 2 along the axial direction. Two blade discs 23 are fixedly mounted on the blade roller sleeve 29 and two blade discs 23 are fixedly mounted on the blade roller shaft 2. The cutting edges of the two blade discs 23 fixed on the blade roller sleeve 29 are distributed counterclockwise (top view), while the cutting edges of the two blade discs 23 fixed on the blade roller shaft 2 are distributed clockwise (top view).

[0021] The inclined crank-slider root-breaking mechanism is characterized by the front end of the housing 10 being fixed to the lower part of the frame 5, the upper surface of the housing 10 forming a 45° angle with the upper plane of the frame 5, the crankshaft 43 being rotatably mounted inside the front end of the housing 10, the crank 7 being fixedly connected to the shaft of the second motor 9, the second motor 9 being fixedly connected to the right side of the middle part of the frame 5, the second motor 9 being connected to the battery 6 via a power cable, one end of the connecting rod 8 being eccentrically hinged to the crank 7, and the other end being hinged to the slider shaft 11, the slider 12 being connected to the connecting rod 8 via... The slider shaft 11 is hinged, the slider 12 passes through the rear end of the housing 10, the front end of the root-cutting shovel handle 13 is fixedly connected to the outer end of the slider 12, the telescopic motor 14 is fixedly installed inside the root-cutting shovel handle 13, the outer end of the telescopic shaft of the telescopic motor 14 is fixedly connected to the left and right root-cutting shovel connecting rod shaft 41, the telescopic motor 14 is connected to the battery 6 through a power cable, the hinge connecting rod 37 is fixedly installed at the end of the root-cutting shovel handle 13, the right root-cutting shovel 15 and the left root-cutting shovel 18 are respectively hinged to the left and right sides of the hinge connecting rod 37 ... The shovel connecting rod shaft 39 and the left root-cutting shovel connecting rod shaft 40 are respectively fixedly mounted on the side of the right root-cutting shovel 15 and the left root-cutting shovel 18 near the lower end of the root-cutting shovel handle 13. One end of the right root-cutting shovel connecting rod 16 and the left root-cutting shovel connecting rod 17 is hinged to the right root-cutting shovel connecting rod shaft 39 and the left root-cutting shovel connecting rod shaft 40 respectively, and the other end is hinged to the left and right root-cutting shovel connecting rod shafts 41. The structures of the right root-cutting shovel 15 and the left root-cutting shovel 18 are completely identical. The shovel wings are modeled after albatross wings, with swept-back shovel tips, and the length-to-width ratio of the shovel body is... The blade is designed to reduce drag during its deployment. The blade has a typical streamlined airfoil cross-section and a corrugated soil-dredging guide rail structure on its surface. The root-cutting blade has multiple thermal resistance wire grooves 42 with lengths matching the blade shape. The number and shape of the thermal resistance wires 38 match the thermal resistance wire grooves 42 and are fixedly installed inside them. One end of the thermal resistance wire 38 is close to the side edge of the root-cutting blade, and the other end is close to the hinge connecting rod 37. The thermal resistance wire 38 is connected to the battery 6 via a power cable.

[0022] When the coaxial forward and reverse stubble cutting mechanism is in operation, the power unit drives the device forward through the three-point suspension frame 1. The stubble enters the working area of ​​the coaxial forward and reverse stubble cutting mechanism. The battery 6 supplies power to the first motor 4. The first motor 4 drives the first bevel gear 3 to rotate. The first bevel gear 3 drives the second bevel gear 34 to rotate. The second bevel gear 34 drives the cutter roller shaft 2 to rotate, which in turn drives the two cutter discs 23 located on the cutter roller shaft 2 to rotate clockwise (top view). At the same time, the cutter roller shaft 2 drives the fourth spur gear 31 to rotate. The fourth spur gear 31 drives the first spur gear 19 to rotate. The first spur gear 19 drives the second spur gear 20 to rotate. The second spur gear 20 drives the third spur gear 30 to rotate. The second spur gear 20 drives the cutter roller bushing 29 to rotate counterclockwise (top view), which in turn drives the two cutter discs 23 located on the cutter roller bushing 29 to rotate counterclockwise (top view), thus realizing that the upper two cutter discs 23 and the lower two cutter discs 23 rotate in opposite directions. During the stubble cutting operation, the first gathering blade 28 and the second gathering blade 27 first gather the stubble, the first clamping blade 26 and the second clamping blade 25 clamp the stubble, and finally the first cutting blade 24 and the second cutting blade 22 cut the stubble. Since the upper blade disc 23 and the lower blade disc 23 rotate in opposite directions, they form a forward and reverse rotation support cutting, which improves the effect of stubble crushing.

[0023] When the inclined crank-slider root-breaking mechanism is in operation, battery 6 supplies power to the second motor 9 via the power cable. The second motor 9 drives the crankshaft 43 to rotate, and the crank 7 in turn drives the eccentric wheel on the connecting rod 8 to rotate around the crankshaft 43. The connecting rod 8 drives the slider 12 to reciprocate along the inclined angle of the housing 10 at the rear side. The slider 12 in turn drives the root-breaking shovel handle 13 to reciprocate along the inclined angle of the housing. The speed of the second motor 9 is adjusted so that the reciprocating speed of the slider 12 reaches a certain value. The horizontal component of the slider 12 is equal to and opposite to the forward speed of the power unit. The remaining vertical component of the slider 12 drives the shovel blade to enter the soil. After the machine moves forward, the blades can vertically enter and exit the soil, effectively reducing soil re-tracing during root cutting operations and avoiding soil between stubble plants. When cutting roots, the horizontal speed reaches zero. As the slider 12 moves downward, the telescopic motor 14 releases the telescopic shaft, driving the left and right root cutting blade connecting rod shafts 41 downward. This acts on the right root cutting blade connecting rod 16 and the left root cutting blade connecting rod 17, causing the right root cutting blade connecting rod shaft 39, the right root cutting blade 15, the left root cutting blade connecting rod shaft 40, and the left root cutting blade 18 to gradually open around the hinge connecting rod 37 in a wing-like state. After reaching the maximum soil penetration depth, the blades are fully opened. The blade cross-section has a typical streamlined airfoil shape, effectively reducing soil penetration resistance. After the root cutting operation, when the slider 12 moves upward, the telescopic motor 14 retracts the telescopic head, driving the left and right root cutting shovel connecting rod shafts 41 to move upward. This acts on the right root cutting shovel connecting rod 16 and the left root cutting shovel connecting rod 17, thereby causing the right root cutting shovel connecting rod shaft 39, the right root cutting shovel 15, the left root cutting shovel connecting rod shaft 40, and the left root cutting shovel 18 to gradually close in a folded-wing state around the hinge connecting rod 37. When the soil is removed, the shovel is completely closed. At the same time, the battery 6 supplies power to the thermal resistance wire 38 through the power cord. The soil comes into contact with the heated shovel surface, reducing soil adhesion.

[0024] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stubble strong support crushing blade group and biomimetic opening and closing shovel low soil disturbance root cutting device, including a frame (5), a three-point suspension frame (1), a coaxial forward and reverse stubble cutting mechanism, and an inclined crank slider root cutting mechanism. The front end of the frame (5) is fixedly connected to the three-point suspension frame (1), the coaxial forward and reverse stubble cutting mechanism is fixedly connected to the lower front end of the frame (5), and the inclined crank slider root cutting mechanism is fixedly connected to the lower rear end of the frame (5).

2. The stubble strong support crushing blade group and biomimetic opening and closing shovel low-disturbance soil cutting root device according to claim 1, characterized in that... The battery (6) and the first motor (4) are both fixed to the upper part of the frame (5). The battery (6) and the first motor (4) are connected by a power cable. The first bevel gear (3) is concentrically fixed to the output shaft of the first motor (4). The second bevel gear (34) is concentrically fixed to the cutter roller shaft (2). The cutter roller shaft (2) is rotatably mounted on the upper front end of the frame (5). The first bevel gear (3) meshes with the second bevel gear (34). The fourth spur gear (31) is fixed to the cutter roller shaft (2). The third spur gear (30) is fixed to the cutter roller shaft sleeve (29). The second tripod (33) is fixed to the cutter roller shaft (2). The first tripod (21) is fixed to the cutter roller shaft sleeve (29). The second tripod (33) and the first tripod (21) are connected to each other. 1) Each gear has three holes with identical structures. The three holes form the three vertices of an equilateral triangle. The equilateral triangle ensures the correct center distance for gear meshing, thus ensuring accurate meshing of the gear set. The first spur gear (19) is concentrically fixed on the first short shaft (35), and the second spur gear (20) is concentrically fixed on the second short shaft (36). One end of the first short shaft (35) is hinged to a hole at one vertex of the second tripod (33), and the other end is hinged to a hole at the corresponding vertex of the first tripod (21) and the second tripod (33). One end of the second short shaft (36) is hinged to a hole at one vertex of the second tripod (33), and the other end is hinged to a hole at the corresponding vertex of the second tripod (33) and the second tripod (21). At the corresponding hole position at the apex, the first spur gear (19) meshes with the second spur gear (20) and the fourth spur gear (31) respectively, the second spur gear (20) meshes with the third spur gear (30), the cutter roller bushing (29) is rotatably mounted on the cutter roller shaft (2), the first gathering knife (27), the second gathering knife (28), the first clamping knife (25), the second clamping knife (26), the first shaving knife (22) and the second shaving knife (24) are arranged circumferentially around the cutter disc (23) at equal angles, the first gathering knife (27) and the second gathering knife (28) have the same structure and increase in size, the blade is crescent-shaped and sharpened on the concave side of the blade, the first clamping knife (25) and the second clamping knife (26) have the same structure and increase in size, the blade All blades are wavy with sharp edges on both sides. The first stubble cutter (22) and the second stubble cutter (24) have the same structure and increasing size. The blades are all arc-shaped with a single edge around the minor arc. Among all the blades, the first stubble cutter (22) is the smallest and the second gathering cutter (28) is the largest. The four blade discs (23) are fixedly mounted equidistantly on the blade roller sleeve (29) and the blade roller shaft (2) along the axial direction. Two blade discs (23) are fixedly mounted on the blade roller sleeve (29) and two blade discs (23) are fixedly mounted on the blade roller shaft (2). The cutting edges of the two blade discs (23) fixed on the blade roller sleeve (29) are distributed counterclockwise (top view), while the cutting edges of the two blade discs (23) fixed on the blade roller shaft (2) are distributed clockwise (top view).

3. The stubble strong support crushing blade group and biomimetic opening and closing shovel low-disturbance soil severing root device according to claim 1, characterized in that... The front end of the housing (10) is fixed to the lower part of the frame (5). The upper surface of the housing (10) forms a 45° angle with the upper plane of the frame (5). The crankshaft (43) is rotatably installed inside the front end of the housing (10). The crank (7) is fixed to the shaft of the second motor (9). The second motor (9) is fixed to the right side of the middle part of the frame (5). The second motor (9) is connected to the battery (6) through a power cable. One end of the connecting rod (8) is eccentrically hinged to the crank (7), and the other end is hinged to the slider shaft (11). The slider (12) and the connecting rod (8) are connected through the slider shaft (11). 11) Hinged, the slider (12) passes through the rear end of the box (10), the front end of the root cutting shovel handle (13) is fixed to the outer end of the slider (12), the telescopic motor (14) is fixed inside the root cutting shovel handle (13), the outer end of the telescopic shaft of the telescopic motor (14) is fixed to the left and right root cutting shovel connecting rod shaft (41), the telescopic motor (14) is connected to the battery (6) through the power line, the hinge connecting rod (37) is fixed to the end of the root cutting shovel handle (13), the right root cutting shovel (15) and the left root cutting shovel (18) are respectively hinged to the left and right sides of the hinge connecting rod (37). On the side, the right root cutting shovel connecting rod shaft (39) and the left root cutting shovel connecting rod shaft (40) are respectively fixed on the side of the right root cutting shovel (15) and the left root cutting shovel (18) near the lower end of the root cutting shovel handle (13). One end of the right root cutting shovel connecting rod (16) and the left root cutting shovel connecting rod (17) are respectively hinged to the right root cutting shovel connecting rod shaft (39) and the left root cutting shovel connecting rod shaft (40), and the other end is hinged to the left and right root cutting shovel connecting rod shafts (41). The structures of the right root cutting shovel (15) and the left root cutting shovel (18) are completely identical. The shovel wings are modeled after the structure of albatross wings, and the shovel tips are swept back. The shovel body has a length-to-width ratio that reduces drag during the shovel wing deployment. The shovel wing has a typical streamlined airfoil cross-section and a corrugated soil-dredging guide rail structure on the shovel surface. The root-cutting shovel has multiple thermal resistance wire grooves (42) with lengths matching the shovel shape. The number and shape of the thermal resistance wires (38) match the thermal resistance wire grooves (42) and are fixed in the thermal resistance wire grooves (42). One end of the thermal resistance wire (38) is close to the side edge of the root-cutting shovel, and the other end is close to the hinge connecting rod (37). The thermal resistance wire (38) is connected to the battery (6) through a power line.

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