A rotary cultivator capable of removing hard objects

Abstract

The application discloses a rotary cultivator capable of removing hard objects, and relates to the field of agricultural machinery.The rotary cultivator comprises a rotary cultivating mechanism, and a soil crushing mechanism is fixedly installed on the top of the rotary cultivating mechanism.The soil crushing mechanism is arranged, the motor drives the rotating disc to rotate, the reciprocating rod moves up and down reciprocatingly, the reciprocating rod drives the stabilizing seat to move up and down, the stabilizing seat can press the two ends of the frame downward, the multiple rotary cultivating blades and the soil are in full contact, the rotary cultivating blades can better cultivate the soil, meanwhile, the reciprocating rod can drive the movable rod to move up and down reciprocatingly, when the movable rod moves downward, the top plate and the multiple soil crushing blades can rotate downward, so that the hard object soil clumps turned up by the rotary cultivating blades are crushed, when the movable rod moves upward, the top plate and the soil crushing blades rotate upward again, so that the soil crushing blades can crush the soil up and down reciprocatingly, the hard object soil clumps can be crushed while the soil is cultivated, and the rotary cultivating efficiency and the ploughing effect are improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a rotary tiller capable of removing hard objects. Background Art

[0002] A rotary tiller is a tilling machine that is used in conjunction with a tractor to complete plowing and harrowing operations. It is widely used because of its strong soil crushing ability and flat surface after plowing. At the same time, it can cut up the root stubble buried below the surface, making it easier for the seeder to operate. The rotary tiller has the functions of breaking the plow bottom layer, restoring the soil plow layer structure, improving the soil's water retention capacity, eliminating some weeds, reducing pests and diseases, leveling the surface, and improving the standards of agricultural mechanization operations.

[0003] In the prior art, such as the Chinese patent number: CN106954395A "A deep tillage rotary tiller", which includes a coupling box and a transmission box connected to the coupling box, the transmission box includes a connecting end connected to the coupling box, and a rotary tillage end extending away from the coupling box via the connecting end, a rotary tillage shaft is provided on the rotary tillage end of the transmission box, a rotary tillage blade group is provided on the rotary tillage shaft, and the rotary tillage blade group rotates along the circumferential direction of the rotating shaft; a plowing shaft extending perpendicular to the rotary tillage shaft is provided on the transmission box, which is provided on the side of the rotary tillage end in the transmission box relative to the connecting end, a plowing blade group is provided on the plowing shaft, and the plowing blade group rotates along the circumferential direction of the plowing shaft.

[0004] The plowing mechanism of a traditional rotary tiller is usually connected to a tractor through a traction device. When the tractor moves, the tractor drives the plowing mechanism through the traction device to rotary plow the field. However, the traction device cannot stabilize the plowing mechanism, resulting in the plowing mechanism being prone to tilting during the movement through the traction device, and the two ends of the plowing mechanism are prone to upward tilting, resulting in the plowing mechanism being unable to fully plow the field during operation, thereby reducing the plowing efficiency. At the same time, for land with harder soil, such as compacted soil, the rotary tiller needs to reduce the tractor's travel speed during operation, and the rotary tiller can only plow the compacted soil lumps, but cannot perform soil crushing work to remove the soil lumps, thereby reducing the plowing efficiency of the rotary tiller. In response to the above problems, a rotary tiller that can remove hard objects is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a rotary tiller that can remove hard objects, so as to solve the problem that the plowing mechanism of the traditional rotary tiller proposed in the above background technology is usually connected to the tractor through a traction device. When the tractor moves, the traction device cannot stabilize the plowing mechanism, resulting in the plowing mechanism being unable to fully plow the land during operation, thereby reducing the plowing efficiency; at the same time, the rotary tiller can only plow the hard lumps of soil, but cannot perform the soil crushing work of removing the hard lumps of soil, thereby reducing the plowing efficiency of the rotary tiller; the present invention sets a soil crushing mechanism to control the motor to drive the turntable to rotate, thereby causing the reciprocating rod to move back and forth up and down, and the reciprocating rod It drives the stabilizing seat to move up and down, and the stabilizing seat can press the two ends of the frame downward, so that multiple rotary tillage blades are in full contact with the soil, so that the rotary tillage blades can better till the soil. At the same time, the reciprocating rod can drive the movable rod to move back and forth up and down. When the movable rod moves downward, the top plate and multiple soil-breaking blades can rotate downward, thereby chopping the hard soil blocks turned up by the rotary tillage blades. When the movable rod moves upward, the top plate and the soil-breaking blades rotate upward again, thereby realizing the reciprocating up and down soil cutting operation of the soil-breaking blades, so that the soil can be tilled while the hard soil blocks can be chopped, thereby improving the tillage efficiency and tillage effect of the rotary tiller.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotary tiller capable of removing hard objects, comprising a rotary tillage mechanism, a soil crushing mechanism fixedly installed on the top of the rotary tillage mechanism, the rotary tillage mechanism comprising a frame, a rotating rod, a pressure plate, a traction frame, a driving device, a driving rod and a rotating shaft, sliding cylinders symmetrically fixedly installed at both ends of the top of the frame, the soil crushing mechanism comprising a soil crushing assembly, a cross bar, a fixed seat, a control motor, a reciprocating rod, a movable rod, a turntable and a swing plate, support plates symmetrically welded and fixed at both ends of the cross bar, limit rings symmetrically welded and fixed at both ends of the support plate, the outer side of the reciprocating rod is slidably connected to the inner side of the limit ring, one end of the support plate rotates with one end of the turntable The cam is connected to the support plate, and one side of the support plate is rotatably mounted on one side of the swing plate, one end of the swing plate is meshed with the outer side of the reciprocating rod, and the bottom of the reciprocating rod is fixedly connected to a stable seat, the soil crushing assembly includes a top plate, a mounting rod, a soil crushing blade and a movable block, a plurality of buffer spring groups are evenly arranged on the bottom of the top plate, and the bottom end of the buffer spring group is fixedly connected to the top of the soil crushing blade, one end of the top plate is rotatably mounted on the outer side of the mounting rod, two slides are symmetrically welded at both ends of the top of the top plate, and the inner wall of the slide is slidably connected to the two ends of the movable block, one end of the movable rod is welded and fixed to the bottom end of the reciprocating rod, and the other end of the movable rod is rotatably mounted on the top of the movable block.

[0007] Preferably, four fixing rods are evenly and fixedly connected to the top of the mounting rod, and the top of the fixing rod is welded and fixed to the bottom of the frame.

[0008] Preferably, two connecting rods are symmetrically rotatably connected to both ends of the cross bar, the top of the fixing seat is welded and fixed to the bottom of the cross bar, and the bottom of the fixing seat is fixedly installed to the top of the frame.

[0009] Preferably, one end of the control motor is fixedly mounted on one side of the support plate, and the output end of the control motor is fixedly connected to one side of the turntable.

[0010] Preferably, one side of the turntable is movably connected to one end of the swing plate, and the outer side of the movable rod is slidably connected to the inner wall of the sliding cylinder.

[0011] Preferably, both ends of the rotating rod are rotatably mounted on one end of the frame, and the outer side of the rotating rod is welded and fixed to one end of the pressing plate.

[0012] Preferably, side panels are symmetrically welded and fixed to both ends of the frame, and the bottom of the side panels is rotatably mounted on the top of the support seat.

[0013] Preferably, two mounting plates are symmetrically fixedly connected to both ends of the top of the frame, and both ends of the traction frame are fixedly connected to one end of the mounting plate.

[0014] Preferably, the bottom of the driving rod is fixedly mounted on the top of the mounting plate, the two ends of the rotating shaft are rotatably mounted on the inner side of the side plate, and a plurality of rotary tillage blades are evenly and fixedly connected to the outer side of the rotating shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, a soil crushing mechanism is provided. When the motor is controlled to drive the turntable to rotate, the two ends of the swing plate swing up and down, thereby causing the reciprocating rod to move back and forth up and down, and the reciprocating rod drives the stable seat at its bottom to move up and down. A compression spring is provided in the middle of the stable seat. When the reciprocating rod drives the stable seat to move downward, the stable seat can press the two ends of the frame downward, so that the frame and multiple rotary tillage blades are in full contact with the soil, so that the rotary tillage blades can better plow the soil, avoiding the problem that the two ends of the traditional frame shake unsteadily, resulting in the rotary tillage mechanism being unable to fully plow the land during work, thereby improving the tillage work efficiency of the rotary tiller.

[0017] 2. In the present invention, the reciprocating rod can drive the movable rod to move reciprocatingly up and down. When the movable rod moves downward, the movable plate slides along the slide plate, and at the same time the top plate and multiple soil breaking blades can rotate downward, thereby chopping the hard soil blocks turned up by the rotary tillage blades. When the movable rod moves upward, the top plate and the soil breaking blades rotate upward again, thereby realizing the reciprocating up and down soil cutting operation of the soil breaking blades, which solves the problem that traditional rotary tillers can only till compacted soil blocks but cannot perform soil crushing work to remove soil blocks, improves the tillage efficiency and tillage effect of the rotary tiller, and the buffer spring group added between the soil breaking blades and the top plate can make the soil breaking blades have a certain buffer deformation ability when cutting the soil, avoid the soil blocks being too hard and causing the soil breaking blades to bend and be damaged, and extend the service life of the soil breaking blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a rotary tiller capable of removing hard objects according to the present invention;

[0019] Figure 2 This is a schematic top view of the structure of a rotary tiller capable of removing hard objects according to the present invention;

[0020] Figure 3 This is a bottom-up structural schematic diagram of a rotary tiller capable of removing hard objects according to the present invention;

[0021] Figure 4 This is an internal side view of a rotary tiller capable of removing hard objects according to the present invention;

[0022] Figure 5 A three-dimensional diagram of a soil crushing mechanism of a rotary tiller capable of removing hard objects according to the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of a soil crushing mechanism of a rotary tiller capable of removing hard objects according to the present invention, viewed from above;

[0024] Figure 7 This is a structural schematic diagram of a soil crushing mechanism of a rotary tiller capable of removing hard objects according to the present invention;

[0025] Figure 8 The present invention is a side view of a soil crushing assembly of a rotary tiller capable of removing hard objects.

[0026] In the figure: 1. rotary tillage mechanism; 3. soil crushing mechanism; 11. side plate; 12. pressing plate; 13. rotating rod; 14. frame; 15. support seat; 16. mounting plate; 17. traction frame; 18. driving device; 19. driving rod; 20. rotary tillage blade; 21. rotating shaft; 22. sliding cylinder; 31. soil crushing assembly; 32. support plate; 33. cross bar; 34. fixed seat; 35. connecting rod; 36. control motor; 37. reciprocating rod; 38. stabilizing seat; 39. movable rod; 40. turntable; 41. limiting ring; 42. swing plate; 311. top plate; 312. mounting rod; 313. fixed rod; 314. slide plate; 315. soil crushing blade; 316. movable block; 317. buffer spring group. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying 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 implementation regulations 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 any creative efforts are within the scope of protection of the present invention.

[0028] Example 1

[0029] Reference Figure 1-5 As shown: a rotary tiller for removing hard objects, including a rotary tillage mechanism 1, a soil crushing mechanism 3 is fixedly installed on the top of the rotary tillage mechanism 1, and the rotary tillage mechanism 1 includes a frame 14, a rotating rod 13, a pressure plate 12, a traction frame 17, a driving device 18, a driving rod 19 and a rotating shaft 21. Sliding cylinders 22 are symmetrically fixedly installed at both ends of the top of the frame 14, and both ends of the rotating rod 13 are rotatably installed with one end of the frame 14, and the outer side of the rotating rod 13 is welded and fixed to one end of the pressure plate 12. Side plates 11 are symmetrically welded and fixed at both ends of the frame 14, and the bottom of the side plate 11 is rotatably installed with the top of the support seat 15. Two mounting plates 16 are symmetrically fixedly connected to the top two ends of the frame 14, and both ends of the traction frame 17 are fixedly connected to one end of the mounting plate 16. The bottom of the driving rod 19 is fixedly installed with the top of the mounting plate 16. The two ends of the rotating shaft 21 are rotatably installed with the inner side of the side plate 11, and the outer side of the rotating shaft 21 is evenly fixedly connected with a number of rotary tillage blades 20.

[0030] In this embodiment, when the rotary tiller is moving, a transmission chain is installed on the outer side of one of the side plates 11. When the driving device 18 can drive the transmission chain through the driving rod 19, it drives the bottom rotating shaft 21 to rotate, and the rotating shaft 21 drives the multiple rotary tilling blades 20 on its outer side to rotate, thereby turning the soil of the field upwards and cutting the root stubble buried below the surface to facilitate the operation of the seeder.

[0031] Example 2

[0032] Figure 5-Figure 8 As shown, the soil crushing mechanism 3 includes a soil crushing assembly 31, a cross bar 33, a fixed seat 34, a control motor 36, a reciprocating rod 37, a movable rod 39, a turntable 40 and a swing plate 42. The two ends of the cross bar 33 are symmetrically welded with a support plate 32, and the two ends of the support plate 32 are symmetrically welded with a limit ring 41. The outer side of the reciprocating rod 37 is slidably connected to the inner side of the limit ring 41. One end of the support plate 32 is rotatably connected to one end of the turntable 40, and one side of the support plate 32 is rotatably installed with one side of the swing plate 42. One end of the swing plate 42 is connected to the reciprocating rod 37. The outer side of the reciprocating rod 37 is fixedly connected to the stable seat 38, and the two ends of the cross bar 33 are symmetrically connected to the two connecting rods 35. The top of the fixed seat 34 is welded and fixed to the bottom of the cross bar 33, and the bottom of the fixed seat 34 is fixedly installed on the top of the frame 14. One end of the control motor 36 is fixedly installed on one side of the support plate 32, and the output end of the control motor 36 is fixedly connected to one side of the turntable 40, and one side of the turntable 40 is movably connected to one end of the swing plate 42. The outer side of the movable rod 39 is slidably connected to the inner wall of the sliding cylinder 22.

[0033] In this embodiment, when the rotary tiller is working, the two control motors 36 at both ends of the soil crushing mechanism 3 are turned on, and the control motor 36 drives the turntable 40 to rotate. A protrusion is fixedly connected to one side of the turntable 40, and a slide groove is provided at one end of the swing plate 42, and the teeth at the other end of the swing plate 42 are engaged with the teeth on the outer side of the reciprocating rod 37. One end of the protrusion passes through the slide groove, and the protrusion is movably connected to the slide groove. Therefore, when the turntable 40 rotates, it can drive the two ends of the swing plate 42 to swing up and down, thereby driving the reciprocating rod 37 to move back and forth up and down. The reciprocating rod 37 drives the stabilizing seat 38 at its bottom to move up and down. A compression spring is provided in the middle of the stabilizing seat 38. When the reciprocating rod 37 drives the stabilizing seat 38 to move downward, the stabilizing seat 38 can press the two ends of the frame 14 downward, so that the frame 14 and multiple rotary tillage blades 20 are in full contact with the soil, so that the rotary tillage blades 20 can better plow the soil, avoiding the shaking of the two ends of the traditional frame 14, which causes the rotary tillage mechanism 1 to be unable to fully plow the land during work, thereby improving the tillage efficiency of the rotary tiller.

[0034] Example 3

[0035] according to Figure 5-8As shown, the soil crushing assembly 31 includes a top plate 311, a mounting rod 312, a soil crushing blade 315 and a movable block 316. A plurality of buffer spring groups 317 are evenly arranged at the bottom of the top plate 311, and the bottom end of the buffer spring group 317 is fixedly connected to the top of the soil crushing blade 315. One end of the top plate 311 is rotatably mounted on the outer side of the mounting rod 312. Two slides 314 are symmetrically welded to both ends of the top of the top plate 311, and the inner wall of the slide 314 is slidably connected to the two ends of the movable block 316. One end of the movable rod 39 is welded and fixed to the bottom end of the reciprocating rod 37, and the other end of the movable rod 39 is rotatably mounted to the top of the movable block 316. Four fixed rods 313 are evenly fixedly connected to the top of the mounting rod 312, and the top of the fixed rod 313 is welded and fixed to the bottom of the frame 14.

[0036] In this embodiment, when the reciprocating rod 37 moves back and forth up and down, it can drive the movable rod 39 to move back and forth up and down, the mounting rod 312 is fixed to the top of the frame 14 through the top fixing rod 313, and the top plate 311 can rotate around the mounting rod 312. When the movable rod 39 moves downward and presses the movable plate 316, the movable plate 316 slides along the slide plate 314. At the same time, the top plate 311 and the multiple soil-breaking blades 315 can rotate downward, thereby chopping the hard soil blocks turned over by the rotary tillage blades 20. When the movable rod 316 moves upward, the top plate 31 1 and the soil-breaking blade 315 rotate upward, so that the soil-breaking blade 315 can reciprocate up and down to cut the soil, which solves the problem that traditional rotary tillers can only plow the hard soil lumps but cannot remove the hard soil lumps and break the soil, thereby improving the tillage efficiency and tillage effect of the rotary tiller; in addition, a buffer spring group 317 is added between the soil-breaking blade 315 and the top plate 311, and the buffer spring group 317 can make the soil-breaking blade 315 have a certain buffer deformation ability when cutting the soil, thereby preventing the soil-breaking blade 315 from bending and being damaged due to the soil lumps being too hard.

[0037] The method of use and working principle of the present device: When the rotary tiller is in use, the traction frame 17 is first installed on the rear side of the vehicle head, and then the two connecting rods 35 are installed on the rear side of the vehicle head. The operator drives the vehicle head to travel on the field, thereby driving the rotary tiller to move; when the rotary tiller is moving, a transmission chain is installed on the outer side of one of the side plates 11. When the driving device 18 can drive the transmission chain through the driving rod 19, it drives the bottom rotating shaft 21 to rotate, and the rotating shaft 21 drives the multiple rotary tilling blades 20 on the outer side thereof to rotate, thereby turning the soil of the field upwards and cutting the root stubble buried below the surface, which is convenient for the seed drill operation;

[0038] At the same time, when the rotary tiller is working, the two control motors 36 at both ends of the soil crushing mechanism 3 are turned on, and the control motor 36 drives the turntable 40 to rotate. A protrusion is fixedly connected to one side of the turntable 40, and a slide groove is provided at one end of the swing plate 42, and the teeth at the other end of the swing plate 42 are meshed with the teeth on the outer side of the reciprocating rod 37. One end of the protrusion passes through the slide groove, and the protrusion is movably connected to the slide groove. Therefore, when the turntable 40 rotates, it can drive the two ends of the swing plate 42 to swing up and down, thereby driving the reciprocating rod 37 to move back and forth up and down; The reciprocating rod 37 drives the stabilizing seat 38 at its bottom to move up and down. A compression spring is provided in the middle of the stabilizing seat 38. When the reciprocating rod 37 drives the stabilizing seat 38 to move downward, the stabilizing seat 38 can press the two ends of the frame 14 downward, so that the frame 14 and the multiple rotary tilling blades 20 are in full contact with the soil, so that the rotary tilling blades 20 can better plow the soil, avoiding the shaking of the two ends of the traditional frame 14, which causes the rotary tilling mechanism 1 to be unable to fully plow the land during operation, thereby improving the tillage efficiency of the rotary tiller;

[0039] At the same time, the bottom end of the reciprocating rod 37 is welded and fixed to one end of the movable rod 39. When the reciprocating rod 37 moves back and forth, it can drive the movable rod 39 to move back and forth. The mounting rod 312 is fixed to the top of the frame 14 through the fixing rod 313 at the top, and the top plate 311 can rotate around the mounting rod 312. When the movable rod 39 moves downward and presses the movable plate 316, the movable plate 316 slides along the slide plate 314. At the same time, the top plate 311 and the multiple soil-breaking blades 315 can rotate downward, thereby chopping the hard soil blocks turned over by the rotary tillage blades 20. When the movable rod 316 moves upward, the top plate 3 11 and the soil-breaking blade 315 rotate upward, so that the soil-breaking blade 315 can reciprocate up and down to cut the soil, which solves the problem that the traditional rotary tiller can only plow the hard soil lumps but cannot remove the soil lumps and crush the soil, thereby improving the plowing efficiency and the tillage effect of the rotary tiller; in addition, a buffer spring group 317 is added between the soil-breaking blade 315 and the top plate 311, and the buffer spring group 317 can make the soil-breaking blade 315 have a certain buffer deformation ability when cutting the soil, thereby avoiding the soil lumps being too hard and causing the soil-breaking blade 315 to bend and be damaged, thereby extending the service life of the soil-breaking blade 315.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, 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 rotary tiller capable of removing hard objects, comprising a rotary tillage mechanism (1), characterized in that: A soil crushing mechanism (3) is fixedly mounted on the top of the rotary tillage mechanism (1). The rotary tillage mechanism (1) comprises a frame (14), a rotating rod (13), a pressing plate (12), a traction frame (17), a driving device (18), a driving rod (19) and a rotating shaft (21). Sliding cylinders (22) are symmetrically fixedly mounted on both ends of the top of the frame (14). The soil crushing mechanism (3) comprises a soil crushing assembly (31), a crossbar (33), a fixing seat (34), a control motor (36), a reciprocating rod (37), a movable rod (39), The turntable (40) and the swing plate (42) are symmetrically welded and fixed with the support plates (32) at both ends of the cross bar (33), and the limit rings (41) are symmetrically welded and fixed at both ends of the support plate (32). The outer side of the reciprocating rod (37) is slidably connected to the inner side of the limit ring (41), one end of the support plate (32) is rotatably connected to one end of the turntable (40), and one side of the support plate (32) is rotatably installed with one side of the swing plate (42), and one end of the swing plate (42) is meshed with the outer side of the reciprocating rod (37). The bottom of the reciprocating rod (37) is fixedly connected to a stabilizing seat (38), and a compression spring is arranged in the middle of the stabilizing seat (38). The soil crushing assembly (31) includes a top plate (311), a mounting rod (312), a soil crushing blade (315) and a movable block (316). A plurality of buffer spring groups (317) are evenly arranged at the bottom of the top plate (311), and the bottom end of the buffer spring group (317) is fixedly connected to the top of the soil crushing blade (315). One end of the top plate (311) is connected to the outer rotation mounting of the mounting rod (312). Two slide plates (314) are symmetrically welded at both ends of the top of the top plate (311), and the inner walls of the slide plates (314) are slidably connected to both ends of the movable block (316). One end of the movable rod (39) is welded and fixed to the bottom end of the reciprocating rod (37), and the other end of the movable rod (39) is rotatably mounted to the top of the movable block (316). Four fixed rods (313) are evenly fixedly connected to the top of the mounting rod (312), and the top of the fixed rod (313) is welded and fixed to the bottom of the frame (14).

2. A rotary tiller capable of removing hard objects according to claim 1, characterized in that: Two connecting rods (35) are symmetrically connected to the two ends of the crossbar (33), the top of the fixing seat (34) is welded and fixed to the bottom of the crossbar (33), and the bottom of the fixing seat (34) is fixedly installed to the top of the frame (14).

3. The rotary tiller capable of removing hard objects according to claim 1, characterized in that: One end of the control motor (36) is fixedly mounted on one side of the support plate (32), and the output end of the control motor (36) is fixedly connected to one side of the turntable (40).

4. The rotary tiller capable of removing hard objects according to claim 1, characterized in that: One side of the rotating disk (40) is movably connected to one end of the swing plate (42), and the outer side of the movable rod (39) is slidably connected to the inner wall of the sliding cylinder (22).

5. The rotary tiller capable of removing hard objects according to claim 1, characterized in that: Both ends of the rotating rod (13) are rotatably mounted on one end of the frame (14), and the outer side of the rotating rod (13) is welded and fixed to one end of the pressing plate (12).

6. The rotary tiller capable of removing hard objects according to claim 1, characterized in that: Side plates (11) are symmetrically welded and fixed to both ends of the frame (14), and the bottom of the side plate (11) is rotatably mounted on the top of the support seat (15).

7. The rotary tiller capable of removing hard objects according to claim 1, characterized in that: Two mounting plates (16) are symmetrically and fixedly connected to the top ends of the frame (14), and both ends of the traction frame (17) are fixedly connected to one end of the mounting plate (16).

8. The rotary tiller capable of removing hard objects according to claim 7, characterized in that: The bottom of the driving rod (19) is fixedly mounted on the top of the mounting plate (16), the two ends of the rotating shaft (21) are rotatably mounted on the inner side of the side plate (11), and a plurality of rotary tillage blades (20) are evenly and fixedly connected to the outer side of the rotating shaft (21).

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