A multifunctional rotary tiller for farming

Abstract

The present invention discloses a multifunctional rotary tiller for farming, which relates to the technical field of rotary tillers. It comprises a frame shell, a connecting frame fixedly mounted on the upper end surface of the frame shell, a positioning hole provided on the connecting frame, a drive shell fixedly mounted on the frame shell, a drive shaft mounted on the drive shell, and a blade fixedly mounted on the drive shaft; a symmetrically arranged positioning frame plate fixedly mounted on the rear side surface of the drive shell, a shielding frame plate fixedly mounted on the positioning frame plate, a shielding plate fixedly mounted on the rear side surface of the shielding frame plate, a linkage assembly provided on the two positioning frame plates, and an adjustment assembly provided on the linkage assembly. This invention optimizes the performance of the rotary tiller in soil leveling and adjustment through the coordinated use of the linkage assembly, the leveling assembly and the adjustment assembly, can better cope with different farming conditions, improve soil quality, and provide a better growth environment for crops.

Description

Technical Field

[0001] The invention relates to the technical field of rotary tillers, in particular to a multifunctional rotary tiller for farming. Background Art

[0002] A rotary tiller is a commonly used agricultural machine, primarily for tilling land. It uses rotating blades or shovels to loosen and refine the soil, improving soil structure and promoting crop growth. Rotary tillers are often used in conjunction with tractors and other agricultural machinery. Their working principle is to use mechanical rotation to loosen and aerate the soil, making it more conducive to the absorption of water and nutrients.

[0003] In the prior art, a Chinese patent with publication number "CN211481873U" discloses a deep tillage rotary tiller, which works by an external driving motor and drives the transmission shaft and the active bevel gear to rotate, and the bottom of the active bevel gear is meshed with a driven bevel gear, so that the driven bevel gear drives the rotating shaft and the active gear to rotate, and the left and right ends of the active gear are meshed with tooth plates, so that the two tooth plates move to the side opposite to each other, and the slider moves in the slide rail. Since a T-shaped slot is provided in the slide rail, the stability of the slider is guaranteed when it moves. The movement of the slider drives the connecting column and the rotary tillage shaft, and adjusts the positions of the two rotary tillage shafts, thereby adjusting the area of ​​rotary tillage, solving the problem that the existing rotary tiller needs to adjust the area of ​​rotary tillage due to the different areas of cultivated land when in use. Although the rotary tillage shaft can be manually disassembled and assembled to achieve the purpose of adjustment, this is not only time-consuming and labor-intensive, but also inconvenient to use.

[0004] In the above scheme, the position of the two rotary tillage shafts is automatically adjusted to achieve the area of ​​rotary tillage by the rotary tiller. However, in this scheme, after the soil is turned over by the rotary tillage teeth, the soil surface will become uneven. Although the tail plate of the rotary tiller can be used to ensure the uniformity of the tillage layer, the leveling effect of the tail plate of the rotary tiller is often affected by the hardness of the soil. When the soil is hard, the tail plate may not be able to effectively level the soil, and may even cause damage to the machine or reduce working efficiency. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a multifunctional rotary tiller for farming, which solves the problems mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A multifunctional agricultural rotary tiller comprises a frame shell, a connecting frame fixedly mounted on the upper end surface of the frame shell, a positioning hole provided on the connecting frame, a drive shell fixedly mounted on the frame shell, a drive shaft mounted on the drive shell, and a blade fixedly mounted on the drive shaft;

[0008] A symmetrically arranged positioning frame is fixedly installed on the rear side of the drive shell, a shielding frame is fixedly installed on the positioning frame, a shielding plate is fixedly installed on the rear side of the shielding frame, a linkage assembly is provided on the two positioning frames, an adjustment assembly is provided on the linkage assembly, a leveling rod is provided on the adjustment assembly, and a leveling blade is fixedly installed on the lower end surface of the leveling rod.

[0009] Preferably, the linkage assembly includes a mounting groove arranged on the frame shell, one end of the drive shaft extends into the interior of the mounting groove and is fixedly installed with a driving sprocket, a linkage shaft is rotatably installed between the two positioning frame plates, and a plurality of worms and driven sprockets are fixedly installed on the linkage shaft.

[0010] Preferably, a plurality of first bearings are fixedly mounted on the shielding frame plate, a positioning vertical rod is fixedly mounted on the first bearing, and a worm gear is fixedly mounted on the side end surface of the positioning vertical rod.

[0011] Preferably, the worm is located on the inner side of the driven sprocket, and the worm wheel is located below the shielding frame. The worm is engaged with the worm, and the driving sprocket is transmitted through a chain and the driven sprocket. The driving sprocket is driven to rotate by the driving shaft, and the driving sprocket drives the driven sprocket to rotate through the chain. The rotation of the driven sprocket drives the worm on the linkage shaft to rotate, and the cooperation between the worm and the worm wheel drives the positioning vertical rod to rotate on the first bearing.

[0012] Preferably, the adjustment assembly includes an L-shaped frame plate fixedly mounted on the frame shell, a second bearing fixedly mounted on the L-shaped frame plate, a hydraulic cylinder fixedly mounted on the second bearing, a lifting rod fixedly mounted on the output rod of the hydraulic cylinder, a positioning slider fixedly mounted on the side end surface of the lifting rod, a lifting hole provided on the upper end surface of the positioning vertical rod, and a positioning slot provided on the inner side surface of the lifting hole.

[0013] Preferably, the lifting rod is slidably installed with the lifting hole, the positioning slider is slidably connected with the positioning slide groove, the lifting rod is driven to rise and fall by the hydraulic cylinder, the positioning slider is limited to slide in the positioning slide groove, and the second bearing is used to ensure that the lifting rod will not affect the rotation of the positioning vertical rod when the height is adjusted.

[0014] Preferably, a connecting column is fixedly installed on the bottom end of the lifting rod, and a circular fixed plate is fixedly installed on the end of the connecting column away from the lifting rod. A rotating groove is provided on the side end surface of the circular fixed plate, and one end of the leveling rod is rotatably connected to the inside of the rotating groove. A U-shaped frame plate is fixedly installed on the upper end surface of the leveling rod, and an adjusting rod is rotatably installed inside the U-shaped frame plate.

[0015] Preferably, a mounting ring is fixedly mounted on the side end face of the connecting column, an electric push rod is fixedly mounted on the upper end face of the mounting ring, a lifting ring is fixedly mounted on the output end of the electric push rod, and a connecting groove is provided on the side end face of the lifting ring.

[0016] Preferably, the end of the adjusting rod away from the U-shaped frame plate is rotatably connected to the inside of the connecting groove, and the lifting ring is slidably installed with the connecting column rod.

[0017] The present invention provides a multifunctional rotary tiller for agricultural use. Compared with the prior art, it has the following beneficial effects:

[0018] 1. In the present invention, when the driving shaft on the driving housing drives the blade to rotate, it will synchronously drive the driving sprocket to rotate, and the driving sprocket will drive the driven sprocket to rotate through the chain. When the driven sprocket rotates, it will drive the linkage shaft to rotate between the two positioning frames. The rotation of the linkage shaft drives the worm to rotate, and then the worm cooperates with the worm wheel on the positioning vertical rod. The positioning vertical rod will rotate on the shielding frame through the first bearing. The leveling rod on the positioning vertical rod will rotate through the leveling blades. The leveling blades are used to level the plowed soil, ensuring the uniformity and flatness of the soil to facilitate crop growth.

[0019] 2. In the present invention, when the height of the leveling rod needs to be adjusted, the hydraulic cylinder drives the lifting rod to slide in the lifting hole on the positioning vertical rod, and the positioning slider on the lifting rod slides within the positioning slot. At the same time, the hydraulic cylinder cooperates with the positioning slider and the positioning slot through the action of the second bearing to complete the height adjustment of the leveling rod without affecting the rotation of the positioning vertical rod, ensuring that the leveling rod can maintain efficient operation and ensure the operation quality during the adjustment process, effectively improving the use effect of the entire rotary tiller;

[0020] 3. In the present invention, when the angle of the leveling rod needs to be adjusted, the electric push rod on the mounting ring is activated, and the electric push rod is used to drive the lifting ring to move up and down at the upper limit of the connecting column. When the lifting ring descends, the lifting rod cooperates with the U-shaped frame plate on the leveling rod through the adjustment rod, so that the leveling rod flips downward with the rotation groove as the center. When the lifting ring rises, the lifting rod cooperates with the U-shaped frame plate on the leveling rod through the adjustment rod, so that the leveling rod flips upward with the rotation groove as the center. By accurately adjusting the angle of the leveling rod, it is ensured that the angle of the leveling rod can be adjusted as needed during rotary tillage operation, thereby optimizing the tillage effect.

[0021] 4. The present invention optimizes the performance of the rotary tiller in soil leveling and adjustment through the coordinated use of the linkage component, the leveling component and the adjustment component, can better cope with different farming conditions, improve the quality of the soil, and provide a better growth environment for crops. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 3 A partial cross-sectional view of the frame shell of the present invention;

[0025] Figure 4 Schematic diagram of the structure of the leveling component in the present invention;

[0026] Figure 5 Schematic diagram of the structure of the linkage shaft in the present invention;

[0027] Figure 6 Schematic diagram of the structure of the adjustment rod in the present invention;

[0028] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0029] Figure 8 It is a cross-sectional view of the positioning vertical rod in the present invention.

[0030] In the figure: 1. frame shell; 2. connecting frame; 3. positioning hole; 4. drive shell; 5. drive shaft; 6. blade; 7. positioning frame plate; 8. shielding frame plate; 9. shielding plate; 10. leveling rod; 11. leveling blade; 12. mounting groove; 13. driving sprocket; 14. linkage shaft; 15. worm; 16. driven sprocket; 17. first bearing; 18. positioning vertical rod; 19. worm gear; 20. L-shaped frame plate; 21. second bearing; 22. hydraulic cylinder; 23. lifting rod; 24. positioning slider; 25. lifting hole; 26. positioning slide; 27. connecting column; 28. circular fixed plate; 29. ​​rotating groove; 30. U-shaped frame plate; 31. adjusting rod; 32. mounting ring; 33. electric push rod; 34. lifting ring; 35. connecting groove; 36. chain. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-8The present invention is a multifunctional agricultural rotary tiller, comprising a frame shell 1, a connecting frame 2 is fixedly installed on the upper end surface of the frame shell 1, a positioning hole 3 is provided on the connecting frame 2, a driving shell 4 is fixedly installed on the frame shell 1, a driving shaft 5 is installed on the driving shell 4, and a blade 6 is fixedly installed on the driving shaft 5; a symmetrically arranged positioning frame plate 7 is fixedly installed on the rear side surface of the driving shell 4, a shielding frame plate 8 is fixedly installed on the positioning frame plate 7, and a shielding plate 9 is fixedly installed on the rear side surface of the shielding frame plate 8, a linkage component is provided on the two positioning frame plates 7, an adjusting component is provided on the linkage component, a leveling rod 10 is provided on the adjusting component, and a leveling blade 11 is fixedly installed on the lower end surface of the leveling rod 10, wherein a power mechanism and a transmission mechanism are provided in the driving shell 4. Since the power mechanism and transmission mechanism in the rotary tiller are technologies well known to those skilled in the art, they will not be described in detail here. The shielding plate 9 is arranged obliquely, and the shielding plate 9 is used to ensure that the rotary tiller does not allow too much dust to float in the air when working;

[0033] The linkage assembly includes a mounting groove 12 provided on the frame shell 1, one end of the drive shaft 5 extends into the interior of the mounting groove 12, and is fixedly mounted with a driving sprocket 13, a linkage shaft 14 is rotatably mounted between the two positioning frame plates 7, a plurality of worms 15 and a driven sprocket 16 are fixedly mounted on the linkage shaft 14, a plurality of first bearings 17 are fixedly mounted on the shielding frame plate 8, a positioning vertical rod 18 is fixedly mounted on the first bearing 17, a worm wheel 19 is fixedly mounted on the side end face of the positioning vertical rod 18, the worm 15 is located on the inner side of the driven sprocket 16, the position of the worm wheel 19 is located below the shielding frame plate 8, and the worm 15 is located on the inner side of the driven sprocket 16. Engaged with the worm 15, the driving sprocket 13 is transmitted to the driven sprocket 16 through the chain 36, and the driving sprocket 13 is driven to rotate by the drive shaft 5. The driving sprocket 13 drives the driven sprocket 16 to rotate through the chain 36. The rotation of the driven sprocket 16 drives the worm 15 on the linkage shaft 14 to rotate, and the cooperation between the worm 15 and the worm wheel 19 is used to drive the positioning vertical rod 18 to rotate on the first bearing 17. The sizes of the driving sprocket 13 and the driven sprocket 16 can be set to one large and one small to ensure that the driving sprocket 13 can drive the driven sprocket 16 to rotate through the chain 36.

[0034] In this embodiment, when the driving shaft 5 on the driving shell 4 drives the blade 6 to rotate, it will synchronously drive the driving sprocket 13 to rotate. The driving sprocket 13 drives the driven sprocket 16 to rotate through the chain 36. When the driven sprocket 16 rotates, it will drive the linkage shaft 14 to rotate between the two positioning frames 7. The rotation of the linkage shaft 14 is used to drive the worm 15 to rotate. The worm 15 is then used to cooperate with the worm wheel 19 on the positioning vertical rod 18. The positioning vertical rod 18 will rotate on the shielding frame 8 through the first bearing 17. The leveling rod 10 on the positioning vertical rod 18 will rotate through the leveling blade 11. The leveling blade 11 is used to level the plowed soil to ensure the uniformity and flatness of the soil for crop growth.

[0035] The adjusting assembly includes an L-shaped frame plate 20 fixedly mounted on the frame shell 1, a second bearing 21 fixedly mounted on the L-shaped frame plate 20, a hydraulic cylinder 22 fixedly mounted on the second bearing 21, a lifting rod 23 fixedly mounted on the output rod of the hydraulic cylinder 22, a positioning slider 24 fixedly mounted on the side end surface of the lifting rod 23, a lifting hole 25 is provided on the upper end surface of the positioning vertical rod 18, a positioning slide 26 is provided on the inner side surface of the lifting hole 25, the lifting rod 23 is slidably mounted on the lifting hole 25, and the positioning slider 24 is slidably connected to the positioning slide 26, and the lifting rod 23 is driven to rise and fall by the hydraulic cylinder 22, and the positioning slider 24 is limited to slide in the positioning slide 26, as well as the effect of the second bearing 21, so that the lifting rod 23 will not affect the rotation of the positioning vertical rod 18 when the height is adjusted.

[0036] In this embodiment, when the height of the leveling rod 10 needs to be adjusted, the hydraulic cylinder 22 drives the lifting rod 23 to slide in the lifting hole 25 on the positioning vertical rod 18, and the positioning slider 24 on the lifting rod 23 slides within the positioning slide groove 26. At the same time, the hydraulic cylinder 22 will complete the height adjustment of the leveling rod 10 without affecting the rotation of the positioning vertical rod 18 through the action of the second bearing 21 and the cooperation of the positioning slider 24 and the positioning slide groove 26, ensuring that the leveling rod 10 can maintain high efficiency and ensure the quality of operation during the adjustment process, thereby effectively improving the use effect of the entire rotary tiller.

[0037] A connecting column 27 is fixedly installed on the bottom end of the lifting rod 23, and a circular fixed plate 28 is fixedly installed on the end of the connecting column 27 away from the lifting rod 23. A rotating groove 29 is provided on the side end surface of the circular fixed plate 28. One end of the leveling rod 10 is rotatably connected to the inside of the rotating groove 29, and a U-shaped frame plate 30 is fixedly installed on the upper end surface of the leveling rod 10. An adjusting rod 31 is rotatably installed inside the U-shaped frame plate 30. A mounting ring 32 is fixedly installed on the side end surface of the connecting column 27, and an electric push rod 33 is fixedly installed on the upper end surface of the mounting ring 32. A lifting ring 34 is fixedly installed on the output end of the electric push rod 33, and a connecting groove 35 is provided on the side end surface of the lifting ring 34. The end of the adjusting rod 31 away from the U-shaped frame plate 30 is rotatably connected to the inside of the connecting groove 35, and the lifting ring 34 is slidably installed with the connecting column 27, wherein the adjusting rod 31 is arranged at an angle to ensure that when the lifting ring 34 is raised or lowered, the adjusting rod 31 cooperates with the U-shaped frame plate 30 to complete the angle adjustment of the leveling rod 10.

[0038] In this embodiment, when the angle of the leveling rod 10 needs to be adjusted, the electric push rod 33 on the mounting ring 32 is started, and the electric push rod 33 is used to drive the lifting ring 34 to lift and lower the upper limit of the connecting column 27. When the lifting ring 34 descends, the lifting rod 23 will cooperate with the U-shaped frame plate 30 on the leveling rod 10 through the adjusting rod 31, so that the leveling rod 10 will flip downward with the rotation groove 29 as the center. When the lifting ring 34 rises, the lifting rod 23 will cooperate with the U-shaped frame plate 30 on the leveling rod 10 through the adjusting rod 31, so that the leveling rod 10 will flip upward with the rotation groove 29 as the center. By precisely adjusting the angle of the leveling rod 10, it is ensured that the angle of the leveling rod 10 can be adjusted as needed during rotary tillage operations to optimize the tillage effect.

[0039] Working principle:

[0040] When in use, the connecting frame 2 is mounted on the agricultural machine through the positioning holes 3;

[0041] When the driving shaft 5 on the driving housing 4 drives the blade 6 to rotate, it will synchronously drive the driving sprocket 13 to rotate, and the driving sprocket 13 will drive the driven sprocket 16 to rotate through the chain 36. When the driven sprocket 16 rotates, it will drive the linkage shaft 14 to rotate between the two positioning frame plates 7. The rotation of the linkage shaft 14 is used to drive the worm 15 to rotate. The worm 15 is then matched with the worm 15 on the positioning vertical rod 18. The positioning vertical rod 18 will rotate on the shielding frame plate 8 through the first bearing 17. The leveling rod 10 on the positioning vertical rod 18 will rotate through the leveling blade 11. The leveling blade 11 is used to level the plowed soil to ensure the uniformity and flatness of the soil.

[0042] When the height of the leveling rod 10 needs to be adjusted, the hydraulic cylinder 22 drives the lifting rod 23 to slide in the lifting hole 25 on the positioning vertical rod 18, and the positioning slide block 24 on the lifting rod 23 slides within the positioning slide groove 26. At the same time, the hydraulic cylinder 22 will cooperate with the positioning slide block 24 and the positioning slide groove 26 through the action of the second bearing 21 to complete the height adjustment of the leveling rod 10 without affecting the rotation of the positioning vertical rod 18, ensuring that the leveling rod 10 can maintain efficient operation and ensure the quality of operation during the adjustment process.

[0043] When the angle of the leveling rod 10 needs to be adjusted, the electric push rod 33 on the mounting ring 32 is started, and the electric push rod 33 is used to drive the lifting ring 34 to lift and lower at the upper limit of the connecting column 27. When the lifting ring 34 descends, the lifting rod 23 will cooperate with the U-shaped frame plate 30 on the leveling rod 10 through the adjusting rod 31, so that the leveling rod 10 will flip downward with the rotating groove 29 as the center. When the lifting ring 34 rises, the lifting rod 23 will cooperate with the U-shaped frame plate 30 on the leveling rod 10 through the adjusting rod 31, so that the leveling rod 10 will flip upward with the rotating groove 29 as the center. By precisely adjusting the angle of the leveling rod 10, it is ensured that the angle of the leveling rod 10 can be adjusted as needed during rotary tillage operations.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A multifunctional agricultural rotary tiller, comprising a frame shell (1), characterized in that: A connecting frame (2) is fixedly mounted on the upper end surface of the frame shell (1), a positioning hole (3) is provided on the connecting frame (2), a driving shell (4) is fixedly mounted on the frame shell (1), a driving shaft (5) is mounted on the driving shell (4), and a blade (6) is fixedly mounted on the driving shaft (5); A symmetrically arranged positioning frame plate (7) is fixedly mounted on the rear side of the driving housing (4), a shielding frame plate (8) is fixedly mounted on the positioning frame plate (7), a shielding plate (9) is fixedly mounted on the rear side of the shielding frame plate (8), a linkage assembly is provided on the two positioning frames (7), an adjustment assembly is provided on the linkage assembly, a leveling rod (10) is provided on the adjustment assembly, and a leveling blade (11) is fixedly mounted on the lower end surface of the leveling rod (10); The linkage assembly includes a mounting groove (12) provided on the frame shell (1), one end of the drive shaft (5) extends into the interior of the mounting groove (12) and is fixedly mounted with a driving sprocket (13), a linkage shaft (14) is rotatably mounted between the two positioning frame plates (7), a plurality of worms (15) and driven sprockets (16) are fixedly mounted on the linkage shaft (14), a plurality of first bearings (17) are fixedly mounted on the shielding frame plate (8), a positioning vertical rod (18) is fixedly mounted on the first bearing (17), and a worm wheel (19) is fixedly mounted on the side end surface of the positioning vertical rod (18); The adjustment assembly includes an L-shaped frame plate (20) fixedly mounted on the frame shell (1), a second bearing (21) fixedly mounted on the L-shaped frame plate (20), a hydraulic cylinder (22) fixedly mounted on the second bearing (21), a lifting rod (23) fixedly mounted on the output rod of the hydraulic cylinder (22), a positioning slider (24) fixedly mounted on the side end face of the lifting rod (23), a lifting hole (25) formed on the upper end face of the positioning vertical rod (18), a positioning slot (26) formed on the inner side face of the lifting hole (25), the lifting rod (23) and the lifting hole (25) are slidably mounted, and the positioning slider (24) is slidably connected to the positioning slot (26); The bottom end of the lifting rod (23) is fixedly mounted with a connecting column (27), and the end of the connecting column (27) away from the lifting rod (23) is fixedly mounted with a circular fixed plate (28), and the side end surface of the circular fixed plate (28) is provided with a rotation groove (29), and one end of the leveling rod (10) is rotatably connected to the inside of the rotation groove (29), and the upper end surface of the leveling rod (10) is fixedly mounted with a U-shaped frame plate (30), and the inside of the U-shaped frame plate (30) is rotatably mounted with an adjusting rod (31), and the side end surface of the connecting column (27) is fixedly mounted with a mounting ring (32), and the upper end surface of the mounting ring (32) is fixedly mounted with an electric push rod (33), and the output end of the electric push rod (33) is fixedly mounted with a lifting ring (34), and the side end surface of the lifting ring (34) is provided with a connecting groove (35).

2. The multifunctional rotary tiller for farming according to claim 1, characterized in that: The worm (15) is located inside the driven sprocket (16), and the worm wheel (19) is located below the shielding frame (8). The driving sprocket (13) is driven by the driven sprocket (16) through the chain (36). The driving sprocket (13) is driven to rotate by the driving shaft (5). The driving sprocket (13) drives the driven sprocket (16) to rotate through the chain (36). The rotation of the driven sprocket (16) drives the worm (15) on the linkage shaft (14) to rotate. The worm (15) and the worm wheel (19) cooperate to drive the positioning vertical rod (18) to rotate on the first bearing (17).

3. The multifunctional rotary tiller for farming according to claim 1, characterized in that: The hydraulic cylinder (22) drives the lifting rod (23) to move up and down, and the positioning slider (24) is used to slide within the positioning slot (26) and the second bearing (21) is used to prevent the lifting rod (23) from affecting the rotation of the positioning vertical rod (18) when adjusting its height.

4. The multifunctional rotary tiller for farming according to claim 1, characterized in that: One end of the regulating rod (31) away from the U-shaped frame plate (30) is rotatably connected to the inside of the connecting groove (35), and the lifting ring (34) is slidably installed with the connecting column (27).

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