Straw mulching and returning strip tillage machine

Abstract

The invention relates to the technical field of tillage machines, and discloses a straw mulching and returning strip tillage machine, which comprises a frame body, and further comprises a rotary tillage column, a plurality of rotary tillage blades, a plurality of rotary tillage blades, a plurality of rotary tillage blades, a plurality of rotary tillage blades, a plurality of rotary tillage blades and a plurality of rotary tillage blades, and is characterized in that the rotary tillage column is rotatably mounted between opposite side surfaces of the frame body; the round roller is rotationally mounted on the outer side of the frame body; the rotary rotary tillage assembly is arranged on the rotary tillage column and the frame body, and the rotary rotary tillage assembly is used for carrying out sufficient rotary tillage on the soil; the uniform wet fertilization assembly is arranged on the frame body, and the uniform fertilization assembly is used for fertilizing the soil subjected to rotary tillage. Through the arrangement of the rotary tillage assembly, the rotary tillage column and the driving assembly, when straw covers and returns to a field, the multiple rotary tillage cutters can revolve with the rotary tillage column as the circle center, and each rotary tillage cutter can rotate with the column as the circle center, so that when the rotary tillage cutters work, soil and straw can be crushed more thoroughly, and the efficiency is improved. And the use effect of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tillage machines, and in particular to a straw mulching and returning strip tillage machine. Background Art

[0002] In order to achieve a planting strategy that emphasizes both environmental protection and high yield and improve the utilization rate of straw resources, the strip tillage technology developed on the basis of straw mulching technology has been increasingly widely used. In this farming mode, relevant staff often use the straw mulching strip tillage machine.

[0003] For example, a straw mulching and returning strip tillage machine disclosed in the patent with announcement number CN217160379U can cover the field with straw, but it does not have the function of adding fertilizer and water when turning the soil during use, and requires subsequent manual spreading of fertilizers, which makes it difficult to ensure the uniformity of fertilizer spreading. In addition, the fertilizers located on the soil surface make it difficult to accelerate the decomposition of the straw, reducing the effect of use. Therefore, it is urgent to design a straw mulching and returning strip tillage machine. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a straw mulching and returning to field strip tillage machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A straw mulching and returning strip tillage machine comprises a frame, on which a mounting frame mounted on a tractor is fixedly mounted, and further comprises:

[0007] A rotary tillage column, which is rotatably mounted between opposite sides of the frame, and is hollow inside;

[0008] A round roller, the round roller is rotatably mounted on the outside of the frame;

[0009] A rotary tillage assembly, which is arranged on a rotary tillage column and a frame, and is used to fully till the soil;

[0010] A uniform fertilization component, wherein the uniform wet fertilization component is arranged on the frame, and the uniform fertilization component is used to fertilize the rotary tilled soil;

[0011] A driving assembly is arranged outside the frame and is used to drive the rotary tillage column to rotate.

[0012] As a further technical solution of the present invention, the rotating rotary tillage assembly includes: a cylinder, which is rotatably installed inside the rotary tillage cylinder, and the top of the cylinder passes through the surface of the rotary tillage cylinder. There are multiple cylinders, and the multiple cylinders are evenly distributed on the rotary tillage cylinder. A gear is fixedly installed at the end of each cylinder, and a rotary tillage blade is fixedly installed at the top of each cylinder.

[0013] As a further technical solution of the present invention, a plurality of racks are horizontally arranged inside the rotary tillage column, and the corresponding racks are meshed with the corresponding plurality of gears. Sliding plates are slidably arranged at both ends inside the rotary tillage column, and the plurality of racks are fixedly installed between the two sliding plates. The sides away from the two sliding plates are horizontally fixed with convex rods, and the ends of the two convex rods away from the corresponding sliding plates pass through the end of the rotary tillage column.

[0014] As a further technical solution of the present invention, corrugated disks are fixedly installed on the opposite sides of the frame, and the two corrugated disks are staggered. When the convex rod and the corrugated disk are in contact, the convex rod and the corrugated disk slide between them. Fixed rings are fixedly installed on both ends of the rotary tillage column, and the fixed rings are rotatably sleeved on the surface of the corrugated disk.

[0015] As a further technical solution of the present invention, the uniform fertilization assembly includes: a barrel body, wherein there are two barrel bodies, the two barrel bodies are vertically installed on the top of the frame, an air box is fixedly installed on the top of each barrel body, a hollow plate is horizontally fixedly installed on the opposite sides of the frame, and a connecting pipe connected to the hollow plate is installed at the bottom of the two barrel bodies, and a solenoid valve is installed on each connecting pipe.

[0016] As a further technical solution of the present invention, a plurality of nozzles evenly distributed in a straight line are installed at the bottom of the hollow plate, and fan blades evenly distributed in a straight line are rotatably installed inside the hollow plate. A cleaning rod is vertically fixed at the bottom of each fan blade, and the cleaning rod passes through the corresponding nozzle.

[0017] As a further technical solution of the present invention, a piston plate is slidably arranged inside each of the air boxes, a piston rod is vertically fixedly installed on the top of the piston plate, the top of the piston rod passes through the corresponding air box, a connecting strip is fixedly connected between the two piston rods, the connecting strip is located outside the air box, an air inlet pipe is connected and installed on the side of each of the air boxes, and an air outlet pipe is connected and installed on the bottom of each of the air boxes, the air outlet pipe extends into the corresponding barrel body, and a first one-way valve and a second one-way valve are respectively installed on the air inlet pipe and the air outlet pipe.

[0018] As a further technical solution of the present invention, a first belt is vertically rotatably arranged on the side of the frame, and first pulleys are rotatably installed at both ends inside the first belt, one of the first pulleys is rotatably installed on the side of the frame, and a limit plate is also vertically fixedly installed on the side of the frame, and the limit plate is located between the two vertical sides of the first belt, and a strip plate is rotatably installed on the other side of the first pulley, and the end of the strip plate is fixedly installed on the side of the limit plate.

[0019] As a further technical solution of the present invention, a turntable is rotatably installed on the side of the first pulley located above, a turntable is rotatably installed on the side away from the first pulley, a connecting rod is horizontally rotatably installed on the end of the turntable, and the end of the connecting rod away from the turntable is rotatably installed on the corresponding side of the piston rod.

[0020] As a further technical solution of the present invention, the driving assembly includes: a shell, the shell is fixedly installed on the outside of the frame, two second pulleys are rotatably installed inside the shell, second belts are sleeved on the surfaces of the two second pulleys, the second pulley located at the bottom is fixedly installed at the center of the end face of the rotary tiller column through a connecting shaft, a driving motor is installed on the side of the shell, and the output shaft of the driving motor is installed at the center of the corresponding side of the second pulley.

[0021] The beneficial effects of the present invention are:

[0022] Firstly, the present invention, by rotating the rotary tillage assembly, the rotary tillage column and the driving assembly, can make the plurality of rotary tillage blades not only revolve around the rotary tillage column as the center of the circle, but also make each rotary tillage blade rotate around the cylinder as the center of the circle, so that the rotary tillage blades can break the soil and straw more thoroughly when working, thereby improving the use effect of the equipment;

[0023] Secondly, the present invention, through the arrangement of the uniform fertilization component, the barrel body and the air box, can automatically make the fertilizer water in the barrel body gradually spray out from the nozzle when the rotary tiller is tilling the soil, and the amount sprayed each time is the same. In addition, when the fertilizer water comes into contact with the soil and straw, the soil and straw are broken, which further ensures the effect of fertilization, accelerates the decomposition of the straw, and thus improves the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a straw mulching and returning strip tillage machine proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a straw mulching and returning strip tillage machine proposed by the present invention when viewed from above;

[0026] Figure 3This is a schematic diagram of the cross-sectional structure of an air box of a straw mulching and returning strip tillage machine proposed by the present invention;

[0027] Figure 4 for Figure 3 A magnified schematic diagram of part A;

[0028] Figure 5 This is a schematic diagram of the cross-sectional structure of a hollow plate of a straw mulching and returning strip tillage machine proposed by the present invention;

[0029] Figure 6 for Figure 5 A magnified schematic diagram of part B;

[0030] Figure 7 This is a schematic diagram of the cross-sectional structure of a rotary tillage column of a straw mulching and returning strip tillage machine proposed by the present invention;

[0031] Figure 8 for Figure 7 A magnified schematic diagram of part C;

[0032] Fig. 9 This is a schematic structural diagram of a straw mulching and returning strip tillage machine proposed by the present invention after the rotary tillage column is removed;

[0033] Fig.10 for Fig. 9 The enlarged schematic diagram of the D part;

[0034] Fig.11 The present invention provides a schematic diagram of the barrel cross section of a straw mulching and returning strip tillage machine.

[0035] In the figure: 1, frame; 2, round roller; 3, mounting frame; 4, rotary tillage column; 5, barrel; 6, air box; 7, first belt; 8, first pulley; 9, limit plate; 10, strip plate; 11, turntable; 12, shell; 13, drive motor; 14, hollow plate; 15, connecting pipe; 16, second belt; 17, second pulley; 18, rotating rod; 19, connecting rod; 20, piston plate; 21, piston rod; 22, connecting strip; 23, air inlet pipe; 24, air outlet pipe; 25, fan blade; 26, nozzle; 27, cleaning rod; 28, cylinder; 29, rotary tillage blade; 30, fixing ring; 31, corrugated disk; 32, sliding disk; 33, convex rod; 34, gear; 35, rack. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0038] Please refer to the attached Figure 1 -Attached Fig.11 A straw mulching and returning strip tillage machine comprises a frame 1, on which a mounting frame 3 mounted on a tractor is fixedly mounted, and further comprises: a rotary tillage column 4, a round roller 2, a rotary tillage assembly, a uniform fertilization assembly and a driving assembly, wherein the rotary tillage column 4 is rotatably mounted between opposite sides of the frame 1, the interior of the rotary tillage column 4 is hollow, the round roller 2 is rotatably mounted on the outside of the frame 1, the rotary tillage assembly is arranged on the rotary tillage column 4 and the frame 1, the rotary tillage assembly is used for fully rotary tilling the soil, the uniform wet fertilization assembly is arranged on the frame 1, the uniform fertilization assembly is used for fertilizing the rotary tilled soil, the driving assembly is arranged on the outside of the frame 1, and the driving assembly is used for driving the rotary tillage column 4 to rotate;

[0039] As described above, the soil and straw can be rotary tilled and crushed in a variety of ways. In addition, when the soil and straw are rotary tilled, fertilizers can be automatically applied during the rotary tillage process, thereby ensuring the uniformity of fertilization.

[0040] Please refer to the attached Figure 1 -Attached Fig.11 In a preferred embodiment, the rotary tillage assembly includes: a cylinder 28, the cylinder 28 is rotatably mounted inside the rotary tillage column 4, the top of the cylinder 28 passes through the surface of the rotary tillage column 4, there are multiple cylinders 28, and the multiple cylinders 28 are evenly distributed on the rotary tillage column 4, each cylinder 28 is fixedly mounted with a gear 34 at the end, and each cylinder 28 is fixedly mounted with a rotary tillage blade 29 at the top, and multiple racks 35 are horizontally arranged inside the rotary tillage column 4, and the corresponding racks 35 are meshed with the corresponding multiple gears 34, and both ends of the rotary tillage column 4 are slidably arranged inside. A sliding disk 32 is arranged, and a plurality of racks 35 are fixedly installed between the two sliding disks 32. The sides away from the two sliding disks 32 are fixedly installed with convex rods 33 horizontally. The ends of the two convex rods 33 away from the corresponding sliding disks 32 pass through the ends of the rotary tillage column 4. The opposite sides of the frame 1 are fixedly installed with corrugated disks 31. The two corrugated disks 31 are staggered. When the convex rods 33 and the corrugated disks 31 are in contact, the convex rods 33 and the corrugated disks 31 slide. The two ends of the rotary tillage column 4 are fixedly installed with fixing rings 30, and the fixing rings 30 are rotatably sleeved on the surface of the corrugated disks 31.

[0041] Specifically, when the straw is covered and returned to the field, the multiple rotary tillers 29 can not only revolve around the rotary tillage column 4 as the center, but also each rotary tiller 29 can rotate around the cylinder 28 as the center, so that the rotary tiller 29 can crush the soil and straw more thoroughly when working.

[0042] Please see attached Figure 1 -Attached Fig.11 In a preferred embodiment, the uniform fertilization component includes: a barrel body 5, wherein there are two barrel bodies 5, and the two barrel bodies 5 are vertically installed on the top of the frame body 1, and an air box 6 is fixedly installed on the top of each barrel body 5, and a hollow plate 14 is horizontally fixedly installed on the opposite sides of the frame body 1, and a connecting pipe 15 connected to the hollow plate 14 is installed at the bottom of the two barrel bodies 5, and a solenoid valve is installed on each connecting pipe 15, and a plurality of nozzles 26 evenly distributed in a straight line are installed at the bottom of the hollow plate 14, and a fan blade 25 evenly distributed in a straight line is rotatably installed inside the hollow plate 14, and a cleaning rod 27 is vertically fixedly installed at the bottom of each fan blade 25, and the cleaning rod 27 passes through the corresponding nozzle 26, and a piston plate 20 is slidably arranged inside each air box 6, and a piston rod 21 is vertically fixedly installed on the top of the piston plate 20, and the top of the piston rod 21 passes through the corresponding air box 6, and a connecting strip 22 is fixedly connected between the two piston rods 21, and the connecting strip 22 is located outside the air box 6, The side of each air box 6 is connected and installed with an air inlet pipe 23, and the bottom of each air box 6 is connected and installed with an air outlet pipe 24, and the air outlet pipe 24 extends into the corresponding barrel body 5. The air inlet pipe 23 and the air outlet pipe 24 are respectively installed with a first non-return valve and a second non-return valve. The side of the frame 1 is vertically rotatably provided with a first belt 7, and the first belt 7 has first pulleys 8 rotatably installed at both ends, one of the first pulleys 8 is rotatably installed on the side of the frame 1, and the side of the frame 1 is also vertically fixedly installed with a limit plate 9, and the limit plate 9 is located between the two vertical sides of the first belt 7. The other side of the first pulley 8 is rotatably installed with a strip plate 10, and the end of the strip plate 10 is fixedly installed on the side of the limit plate 9, and the side of the first pulley 8 located above is rotatably installed with a turntable 11, and the side of the turntable 11 away from the first pulley 8 is rotatably installed with a rotating rod 18, and the end of the rotating rod 18 is horizontally rotatably installed with a connecting rod 19, and the end of the connecting rod 19 away from the rotating rod 18 is rotatably installed on the corresponding side of the piston rod 21;

[0043] Preferably, when the rotary tiller 29 is tilling the soil, the fertilizer water inside the barrel 5 is automatically sprayed out from the nozzle 26, and the amount sprayed each time is the same. In addition, when the fertilizer water comes into contact with the soil and straw, the soil and straw are broken, which further ensures the fertilization effect and accelerates the decomposition of the straw.

[0044] Please see attached Figure 1 -Attached Figure 5 In a preferred embodiment, the driving assembly includes: a housing 12, the housing 12 is fixedly mounted on the outside of the frame 1, two second pulleys 17 are rotatably mounted inside the housing 12, the surfaces of the two second pulleys 17 are sleeved with second belts 16, the second pulley 17 located at the bottom is fixedly mounted on the center of the end face of the rotary tillage column 4 through a connecting shaft, a driving motor 13 is mounted on the side of the housing 12, and the output shaft of the driving motor 13 is mounted at the center of the side of the corresponding second pulley 17;

[0045] Furthermore, it is used to drive the rotary tillage column 4 to rotate.

[0046] The working principle of the present invention is as follows: first, the frame 1 is installed on the tractor through the mounting frame 3, and then the tractor drives the frame 1 to move to the position where it needs to be used, and then the fertilizer water is added into the barrel 5 through the feed port, and the frame 1 is lowered by the tractor to make it in working state, and then the solenoid valve is opened;

[0047] Then the traction machine can drive the frame 1 to move, and at the same time start the driving motor 13. The driving motor 13 rotates to drive the second belt 16 and the second pulley 17 to rotate. The second pulley 17 rotates to drive the rotary tillage column 4 to rotate. The rotary tillage column 4 rotates to drive multiple cylinders 28, rotary tillage blades 29, racks 35, sliding plates 32 and convex rods 33 to rotate. Due to the setting of the two corrugated disks 31, the two convex rods 33 will move left and right synchronously. The movement of the two convex rods 33 will drive the two sliding plates 32 to move. The movement of the two sliding plates 32 drives multiple racks 35 to move back and forth. The movement of the rack 35 drives the gear 34 meshing therewith to rotate. The rotation of the gear 34 drives the cylinder 28 and the rotary tillage blade 29 to rotate, so that the rotary tillage blade 29 can also rotate during the revolution, further improving the effect of returning the straw to the field. In addition, the setting of the fixed ring 30 is used to block the corrugated disk 31, so as to avoid the situation that the corrugated disk 31 is covered by the soil and cannot effectively slide with the convex rods 33.

[0048] When the rotary tillage column 4 rotates, it will also drive the first belt 7 and the first pulley 8 to rotate. The rotation of the first pulley 8 drives the turntable 11 to rotate. The rotation of the turntable 11 drives the rotating rod 18 to move. The movement of the rotating rod 18 drives the connecting rod 19 to move. The movement of the connecting rod 19 drives the piston rod 21 to move. The movement of the piston rod 21 drives the piston plate 20 to move. When the piston plate 20 moves upward, the first one-way valve on the air inlet pipe 23 is opened, and the second one-way valve on the air outlet pipe 24 is closed, so that the external gas enters the air box 6 through the air inlet pipe 23. When the piston plate 20 moves upward, the first one-way valve on the air inlet pipe 23 is closed, and the second one-way valve on the air outlet pipe 24 is closed. When the second one-way valve on 24 is opened, the gas inside the air box 6 will enter the barrel body 5 from the air outlet pipe 24, and further pressurize the barrel body 5 to spray liquid. When the fertilizer water inside the barrel body 5 flows from the connecting pipe 15 to the hollow plate 14, the fan blades 25 inside the hollow plate 14 will rotate and drive the cleaning rod 27 to move, so that the nozzle 26 can be cleaned, ensuring that the nozzle 26 will not be blocked when working in a dirty and messy environment, so as to realize the fertilizer water inside the barrel body 5 to be sprayed on the soil and straw during the rotary tillage process, further ensuring the effect of fertilization, accelerating the decomposition of straw, and thereby improving the use effect of the equipment.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A straw mulching and returning strip tillage machine, comprising a frame (1), on which a mounting frame (3) mounted on a tractor is fixedly mounted, characterized in that: Also includes: A rotary tillage column (4), the rotary tillage column (4) is rotatably mounted between opposite side surfaces of the frame (1), and the interior of the rotary tillage column (4) is hollow; A round roller (2), the round roller (2) being rotatably mounted on the outside of the frame (1); A rotary tillage assembly, the rotary tillage assembly being arranged on a rotary tillage column (4) and a frame (1), and being used for fully rotary tilling the soil; A uniform fertilization component, wherein the uniform wet fertilization component is arranged on the frame (1), and the uniform fertilization component is used to fertilize the rotary tilled soil; A driving assembly is arranged outside the frame (1), and is used to drive the rotary tillage column (4) to rotate.

2. A straw mulching and returning strip tillage machine according to claim 1, characterized in that: The rotary tillage assembly comprises: a cylinder (28), the cylinder (28) being rotatably mounted inside a rotary tillage column (4), the top end of the cylinder (28) passing through the surface of the rotary tillage column (4), there being a plurality of cylinders (28), the plurality of cylinders (28) being evenly distributed on the rotary tillage column (4), a gear (34) being fixedly mounted at the end of each cylinder (28), and a rotary tillage blade (29) being fixedly mounted at the top end of each cylinder (28).

3. The straw mulching and returning strip tillage machine according to claim 2, characterized in that: A plurality of racks (35) are horizontally arranged inside the rotary tillage column (4), and the corresponding racks (35) are meshed with the corresponding plurality of gears (34). Sliding disks (32) are slidably arranged at both ends inside the rotary tillage column (4), and the plurality of racks (35) are fixedly installed between the two sliding disks (32). The sides away from the two sliding disks (32) are horizontally fixedly installed with protruding rods (33), and the ends of the two protruding rods (33) away from the corresponding sliding disks (32) pass through the ends of the rotary tillage column (4).

4. The straw mulching and returning strip tillage machine according to claim 3, characterized in that: The opposite sides of the frame (1) are fixedly mounted with corrugated discs (31), and the two corrugated discs (31) are staggered. When the protruding rod (33) and the corrugated disc (31) are in contact, the protruding rod (33) and the corrugated disc (31) slide against each other. Both ends of the rotary tillage column (4) are fixedly mounted with fixing rings (30), and the fixing rings (30) are rotatably sleeved on the surface of the corrugated disc (31).

5. The straw mulching and returning strip tillage machine according to claim 4, characterized in that: The uniform fertilization assembly comprises: a barrel body (5), wherein there are two barrel bodies (5), the two barrel bodies (5) are vertically mounted on the top of a frame body (1), an air box (6) is fixedly mounted on the top of each barrel body (5), a hollow plate (14) is horizontally fixedly mounted on opposite sides of the frame body (1), a connecting pipe (15) connected to the hollow plate (14) is installed at the bottom of the two barrel bodies (5), and each connecting pipe (15) is installed with a solenoid valve.

6. The straw mulching and field strip tillage machine according to claim 5, characterized in that: The bottom of the hollow plate (14) is connected to and installed with a plurality of nozzles (26) evenly distributed in a straight line. Fan blades (25) evenly distributed in a straight line are rotatably installed inside the hollow plate (14). A cleaning rod (27) is vertically fixedly installed at the bottom of each fan blade (25), and the cleaning rod (27) passes through the corresponding nozzle (26).

7. The straw mulching and returning strip tillage machine according to claim 6, characterized in that: A piston plate (20) is slidably arranged inside each of the air boxes (6), a piston rod (21) is vertically fixedly installed on the top of the piston plate (20), the top of the piston rod (21) passes through the corresponding air box (6), a connecting strip (22) is fixedly connected between the two piston rods (21), and the connecting strip (22) is located outside the air box (6), an air inlet pipe (23) is connected and installed on the side of each of the air boxes (6), and an air outlet pipe (24) is connected and installed on the bottom of each of the air boxes (6), and the air outlet pipe (24) extends into the interior of the corresponding barrel body (5), and a first one-way valve and a second one-way valve are respectively installed on the air inlet pipe (23) and the air outlet pipe (24).

8. The straw mulching and returning strip tillage machine according to claim 7, characterized in that: A first belt (7) is vertically rotatably arranged on the side of the frame (1), and first pulleys (8) are rotatably installed at both ends of the first belt (7), one of the first pulleys (8) is rotatably installed on the side of the frame (1), and a limit plate (9) is also vertically fixedly installed on the side of the frame (1), and the limit plate (9) is located between the two vertical sides of the first belt (7), and a strip plate (10) is rotatably installed on the other side of the first pulley (8), and the end of the strip plate (10) is fixedly installed on the side of the limit plate (9).

9. The straw mulching and field strip tillage machine according to claim 8, characterized in that: A turntable (11) is rotatably mounted on the side of the first pulley (8) located at the top, a turntable (11) is rotatably mounted on the side of the turntable (11) away from the first pulley (8), a connecting rod (19) is horizontally rotatably mounted on the end of the turning rod (18), and the end of the connecting rod (19) away from the turning rod (18) is rotatably mounted on the side of the corresponding piston rod (21).

10. The straw mulching and returning strip tillage machine according to claim 9, characterized in that: The driving assembly comprises: a housing (12), the housing (12) being fixedly mounted on the outside of the frame (1), two second pulleys (17) being rotatably mounted inside the housing (12), the surfaces of the two second pulleys (17) being sleeved with second belts (16), the second pulley (17) located at the bottom being fixedly mounted at the center of the end face of the rotary tilling column (4) via a connecting shaft, a driving motor (13) being mounted on the side of the housing (12), and the output shaft of the driving motor (13) being mounted at the center of the side face of the corresponding second pulley (17).

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