Corn planting row spacing adjustable rotary cultivator

Abstract

The invention discloses a corn planting row spacing adjustable rotary cultivator, and relates to the technical field of rotary cultivators. The sliding cutter heads and the fixed cutter heads are evenly installed on the outer side of the cutter shaft barrel in the axial direction, the sliding cutter heads and the fixed cutter heads are installed in a staggered mode, threaded grooves are evenly formed in the outer sides of the threaded rods, and threaded hole blocks are connected to the threaded grooves of the threaded rods in a threaded mode. Through threaded connection of a threaded rod and a threaded hole block, before rotary tillage soil preparation according to needs, a spanner is connected with hexagonal blocks at the two ends of the threaded rod in a clamped mode, the threaded rod is rotated, the sliding cutter head slides on the outer side of the cutter shaft barrel, the spacing distance between the sliding cutter head and the fixed cutter head is changed, and meanwhile the sliding cutter head and the fixed cutter head are concentrated at the position where rotary tillage soil turning is needed; the rotary blades are concentrated at the position where soil needs to be turned, the planting row spacing can be adjusted, and meanwhile the soil looseness of the rotary tillage position after soil turning is improved.

Description

Technical Field

[0001] This invention relates to the field of rotary tiller technology, specifically to a rotary tiller with adjustable row spacing for corn planting. Background Technology

[0002] A rotary tiller, also known as a rotary tiller or rotary plow, is a type of soil tillage machinery that uses rotating blades as its core working component and employs the milling principle to process soil. It can complete multiple operations such as tilling, harrowing, and leveling in one go. It is a highly efficient land preparation equipment widely used in modern agriculture. Rotary tillers are usually used in conjunction with tractors. The tractor's power take-off shaft drives the blades on the rotary tiller shaft to rotate at high speed. The blades cut into the soil to cut, crush, turn, and mix it, while moving forward at a constant speed with the whole machine. A rotary tiller with publication number CN111264092B includes a drive pulley fixed on the output shaft of an engine, which is connected to a driven pulley via a power belt. The driven pulley is fixed on the power shaft. A moving bevel gear meshes with a rotary tillage bevel gear, which is fixed on a rotary tillage reducer connecting shaft. The other end of the rotary tillage reducer connecting shaft is connected to the input shaft of the rotary tillage reducer. The output shaft of the rotary tillage reducer is connected to a universal joint coupling, and the other end of the universal joint coupling is connected to the input shaft of the rotary tillage plow connecting reducer. The output shaft of the rotary tillage plow connecting reducer is connected to the rotary tillage plow's rotating shaft. The other end of the rotary tillage plow's rotating shaft is fixed with a connecting sleeve, which is fixed on the rotary tillage plow's lifting cylindrical rack. The rotary tillage plow's lifting cylindrical rack meshes with a gear one, which is fixed on a lifting transmission shaft. A gear two is fixed on the lifting transmission shaft, and gear two meshes with a wheel lifting cylindrical rack. However, when adjusting the rotary tiller's tillage interval, the spacing between the blades is usually changed, which concentrates the blades on the soil to be tilled. This results in the soil looseness after tillage not being improved. At the same time, during the rotary tillage process, a large number of soil clods are easy to accumulate inside the equipment, causing soil blockage. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a rotary tiller with adjustable row spacing for corn planting, comprising: A frame mechanism, wherein a rotary tillage mechanism is installed inside the frame mechanism and a roller leveling mechanism is fixedly installed on the outside of the frame mechanism; The rotary tillage mechanism includes a drive shaft and a fixed disk. The drive shaft is rotatably installed inside the frame mechanism, and the fixed disk is fixedly installed on both sides of the inner wall of the frame mechanism. Each of the opposite surfaces of the fixed disk is provided with a convex ring, and an inner turntable is rotatably installed on each of the opposite surfaces of the fixed disk. Rod holes are evenly opened on the opposite surfaces of the inner turntables, and a threaded rod and a support rod are rotatably installed between the inner turntables. The support rods are symmetrically installed along the center position of the axis of the inner turntable. A cutter shaft cylinder is fixedly installed on the outer side of the drive shaft. A fixed cutter disc is fixedly installed on the outer side of the cutter shaft cylinder, and a sliding cutter disc is slidably installed on the outer side of the cutter shaft cylinder. The sliding cutter disc and the fixed cutter disc are evenly installed axially on the outer side of the cutter shaft cylinder, and the sliding cutter disc and the fixed cutter disc are staggered. Threaded grooves are evenly provided on the outer side of the threaded rod, and threaded hole blocks are threadedly connected to the threaded grooves of the threaded rod. Through the threaded connection between the threaded rod and the threaded hole blocks, before rotary tillage, a wrench can be engaged with the hexagonal blocks at both ends of the threaded rod to rotate the threaded rod, causing the sliding cutter disc to slide on the outer side of the cutter shaft cylinder, changing the interval distance between it and the fixed cutter disc. At the same time, the sliding cutter disc and the fixed cutter disc are concentrated at the position where rotary tillage is required, so that the rotary tillage blades are concentrated at the position where the soil needs to be turned. This achieves the effect of adjustable planting row spacing while improving the looseness of the soil after turning at the rotary tillage position. The outer side of the threaded hole block is fixedly connected to the inner wall of the sliding cutter disc.

[0004] Preferably, rotary tillers are rotatably mounted on the inner walls of both the fixed and sliding cutter discs. The rotary tillers are evenly installed along the center of the drive shaft. Hexagonal blocks are provided at both ends of the threaded rod. A notch is formed on the outer side of the inner turntable, and the notch corresponds to the hexagonal block on the threaded rod. Bearings are rotatably mounted at both ends of the outer side of the cutter shaft cylinder. The cutter shaft cylinder is rotatably connected to the inner wall of the frame mechanism via the bearings. A support sleeve is fixedly mounted on the outer side of the cutter shaft cylinder. The support sleeve engages with a support hole block, and the inner wall of the support sleeve rotatably connects to the outer side of the support rod and the non-threaded position of the outer side of the threaded rod, thus supporting the connection between the support rod and the threaded rod. The threaded rod provides limiting support and, while providing support, cooperates with the support hole block to reduce the lever arm length of the support rod and threaded rod when impacted by soil clods during rotary tillage. This increases the deformation strength of the support rod and threaded rod and prevents them from bending and deforming due to soil impacts during rotary tillage, which would hinder adjustment. The inner wall of the support sleeve is rotatably connected to the outer side of the support rod and the non-threaded position of the outer side of the threaded rod. The outer side of the support rod is slidably connected to the support hole block, which is evenly installed on the outer side of the support rod. The outer side of the support hole block is fixedly connected to the inner wall of the fixed cutter head and the inner wall of the sliding cutter head.

[0005] Preferably, the frame mechanism includes a top frame plate, an accelerator is fixedly installed on the top of the top frame plate, a drive wheel is fixedly connected to the output end of the accelerator, a chain is driven to the outer side of the drive wheel, and a driven wheel is driven to the drive wheel through the chain. The inner wall of the driven wheel is fixedly connected to one end of the drive shaft. Side fasteners are fixedly installed on both sides of the top of the top frame plate, and side support plates are fixedly installed on both sides of the bottom of the top frame plate. Shaft holes are symmetrically opened on the bottom of the outer side of the side support plates, and side rotating wheels are rotatably installed at the shaft holes of the side support plates. The side rotating wheels cooperate with the front baffle, and the side rotating wheels contact the soil on both sides of the rotary tillage position to limit the depth of the rotary tillage mechanism in the soil when turning the soil, preventing excessive penetration and damage to the rotary tillage mechanism. At the same time, the front baffle blocks soil clods that are splashed towards the traction machinery during rotary tillage, preventing injury to personnel. The front baffle is fixedly installed on the side of the bottom of the top frame plate away from the roller leveling mechanism.

[0006] Preferably, the roller leveling mechanism includes a connecting plate, which is fixedly installed on the outside of the top frame plate. Both sides of the bottom of the connecting plate are provided with perforated plates, and a connecting shaft is rotatably installed between the perforated plates. An extension plate is fixedly installed on the outside of the connecting shaft. A shaft groove plate is fixedly installed at the end of the extension plate away from the connecting plate. Shaft grooves are opened at the bottom of both sides of the shaft groove plate, and an inner sliding shaft is slidably installed at the shaft groove of the shaft groove plate.

[0007] Preferably, a leveling roller is fixedly installed on the outer side of the inner sliding shaft. The outer side of the leveling roller is evenly provided with protrusions. The leveling roller, in conjunction with an extension plate and a shaft groove plate, is rotatably connected to the connecting plate via a connecting shaft. This allows the shaft groove plate and the extension plate to rotate along the axis of the connecting shaft. When leveling the rotary tilled soil, large, hard clods can be smoothly passed over by rotating and engaging with the protrusions on the outer side of the leveling roller, preventing the movement of large amounts of soil and avoiding accumulation of soil inside. Shaft end sleeves are rotatably installed on both sides of the inner sliding shaft. Fixed frames are fixedly installed on the bottom of both sides of the plate. The inner wall of the fixed frame slides and adapts to the outer side of the shaft end sleeve. The inner wall of the fixed frame is engaged with a side washer ring. The side washer ring is symmetrically installed along the center position of the axis of the fixed frame. The side washer ring is made of elastic metal material. Utilizing the elastic deformation characteristics of the side washer ring, when the leveling roller impacts a hard stone, the force is transmitted to the shaft end sleeve through the inner sliding shaft, causing the shaft end sleeve to slide within the fixed frame, compressing the side washer ring, buffering the impact force, and protecting the equipment. The opposite surfaces of the side washer ring are in contact with the two sides of the shaft end sleeve.

[0008] This invention provides a rotary tiller with adjustable row spacing for corn planting. It has the following beneficial effects: (I) This corn planting row spacing adjustable rotary tiller, through the threaded connection between the threaded rod and the threaded hole block, can be rotated as needed before rotary tillage by engaging the hexagonal blocks at both ends of the threaded rod with a wrench, so that the sliding cutter disc slides on the outside of the cutter shaft cylinder, changing the interval distance between it and the fixed cutter disc. At the same time, the sliding cutter disc and the fixed cutter disc are concentrated at the position where rotary tillage is required, so that the rotary tillage blades are concentrated at the position where the soil needs to be turned, achieving the effect of adjustable planting row spacing while improving the looseness of the soil after turning at the rotary tillage position.

[0009] (II) The adjustable row spacing rotary tiller for corn planting uses a support sleeve and a support hole block to cooperate. The inner wall of the support sleeve is rotatably connected to the outer side of the support rod and the non-threaded position of the threaded rod, which limits the support rod and the threaded rod. At the same time, it cooperates with the support hole block to reduce the lever arm length of the support rod and the threaded rod when hit by soil during rotary tillage, improves the deformation strength of the support rod and the threaded rod, and prevents the support rod and the threaded rod from bending and deforming due to the impact of soil during rotary tillage, which would hinder adjustment.

[0010] (III) The corn planting row spacing adjustable rotary tiller uses the side wheels and front baffle to contact the soil on both sides of the rotary tillage position, which limits the depth of the rotary tillage mechanism in the soil when turning the soil, and prevents excessive penetration that could damage the rotary tillage mechanism. At the same time, the front baffle blocks soil clods that are splashed towards the traction machinery during rotary tillage, preventing injury to personnel.

[0011] (iv) The adjustable row spacing rotary tiller for corn planting uses a leveling roller in conjunction with an extension plate and a shaft groove plate. The extension plate and the connecting plate are connected by a connecting shaft, allowing the shaft groove plate and the extension plate to rotate along the center of the connecting shaft. When leveling the soil after rotary tilling, if a large hard soil clod is encountered, it can be smoothly passed over by rotating and cooperating with the protrusion on the outside of the leveling roller, thus avoiding the movement of a large number of soil clods and the accumulation of a large number of soil clods inside.

[0012] (v) The adjustable row spacing rotary tiller for corn planting utilizes the elastic deformation characteristics of the side pad rings. When the leveling roller impacts a hard rock, the force is transmitted to the shaft end sleeve through the inner sliding shaft, causing the shaft end sleeve to slide within the fixed frame, compressing the side pad rings and buffering the impact force to protect the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the frame mechanism of the present invention; Figure 4 This is a structural side view of the frame mechanism of the present invention; Figure 5 This is a schematic diagram of the rotary tillage mechanism of the present invention; Figure 6 This is a partial structural schematic diagram of the rotary tillage mechanism of the present invention; Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure A; Figure 8 This is a schematic diagram of the roller leveling mechanism of the present invention; Figure 9 This is a partial structural side view of the roller leveling mechanism of the present invention.

[0014] In the diagram: 1. Frame mechanism; 2. Rotary tillage mechanism; 3. Roller leveling mechanism; 11. Top frame plate; 12. Accelerator; 13. Drive wheel; 14. Front baffle; 15. Side buckle block; 16. Side support plate; 17. Side rotating wheel; 18. Driven wheel; 19. Wheel chain; 201. Drive shaft; 202. Inner turntable; 203. Rotary tillage blade; 204. Bearing; 205. Fixed plate; 206. Support hole block; 207. Blade shaft cylinder; 208. Support sleeve; 209. Sliding cutter head; 210. Fixed cutter head; 211. Support rod; 212. Threaded hole block; 213. Threaded rod; 31. Connecting plate; 32. Connecting shaft; 33. Extension plate; 34. Shaft groove plate; 35. Leveling roller; 36. Inner sliding shaft; 37. Side washer ring; 38. Shaft end sleeve; 39. Fixed frame. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] For the first embodiment, please refer to... Figures 1 to 2 and Figures 5 to 7 The present invention provides a technical solution: A rotary tiller with adjustable row spacing for corn planting includes: The frame mechanism 1 has a rotary tillage mechanism 2 installed inside it, and a roller leveling mechanism 3 is fixedly installed on the outside of the frame mechanism 1. The rotary tillage mechanism 2 includes a drive shaft 201 and a fixed disk 205. The drive shaft 201 is rotatably installed inside the frame mechanism 1, and the fixed disk 205 is fixedly installed on both sides of the inner wall of the frame mechanism 1. Each of the opposite surfaces of the fixed disk 205 is provided with a convex ring, and each of the opposite surfaces of the fixed disk 205 is rotatably installed with an inner turntable 202. The opposite surfaces of the inner turntable 202 are evenly provided with rod holes, and a threaded rod 213 and a support rod 211 are rotatably installed between the inner turntables 202. The support rod 211 is symmetrically installed along the center position of the axis of the inner turntable 202. A cutter shaft cylinder 207 is fixedly mounted on the outer side of the drive shaft 201. A fixed cutter disc 210 is fixedly mounted on the outer side of the cutter shaft cylinder 207, and a sliding cutter disc 209 is slidably mounted on the outer side of the cutter shaft cylinder 207. The sliding cutter disc 209 and the fixed cutter disc 210 are evenly installed axially on the outer side of the cutter shaft cylinder 207, and are staggered. Through the engagement of the drive shaft 201 and the driven wheel 18, power is transmitted to the drive shaft 201, driving the cutter shaft cylinder 207 to rotate at high speed. During the rotation, power is transmitted through the cutter shaft cylinder... The bearings 204 at both ends of 207 restrict the center position of the rotation axis of the cutter shaft cylinder 207. At the same time, the cutter shaft cylinder 207 drives the outer fixed cutter disc 210 and sliding cutter disc 209 to rotate. During the rotation, the rotary tiller blades 203, which are rotatably mounted on the inner wall of the fixed cutter disc 210 and the sliding cutter disc 209, rotate at high speed along the center position of the cutter disc. The outer side of the threaded rod 213 is evenly provided with threaded grooves, and each threaded groove of the threaded rod 213 is threadedly connected with a threaded hole block 212. The outer side of the threaded hole block 212 is fixedly connected to the inner wall of the sliding cutter disc 209.

[0017] Rotary tillage blades 203 are rotatably mounted on the inner walls of both the fixed cutter head 210 and the sliding cutter head 209. The rotary tillage blades 203 are evenly installed along the center of the drive shaft 201. Hexagonal blocks are provided at both ends of the threaded rod 213. A notch is provided on the outer side of the inner turntable 202, and the notch on the inner turntable 202 corresponds to the hexagonal blocks of the threaded rod 213. Bearings 204 are rotatably mounted at both ends of the outer side of the cutter shaft cylinder 207. During rotation, the rotary tillage blades 203, through inertia, contact the soil and till the land. Before tilling, the position of the rotary tillage blades can be adjusted according to the corn planting row spacing. A wrench is inserted into the notch of the inner turntable and engages with the hexagonal blocks at both ends of the threaded rod 213, causing the threaded rod 213 to rotate. During rotation, the thread position of the threaded rod 213 and the screw thread... The threaded connection of the perforated block 212, in conjunction with the fixed connection between the threaded block 212 and the sliding cutter head 209, allows the distance between the fixed cutter head 210 and the sliding cutter head 209 to be adjusted when the threaded rod 213 rotates, so that the cutters are concentrated at the position where rotary tillage is required, while leaving the row spacing position empty. The cutter shaft cylinder 207 is rotatably connected to the inner wall of the frame mechanism 1 through the bearing 204. A support sleeve 208 is fixedly installed on the outer side of the cutter shaft cylinder 207. The inner wall of the support sleeve 208 is rotatably connected to the outer side of the support rod 211 and the non-threaded position of the outer side of the threaded rod 213. A support hole block 206 is slidably connected to the outer side of the support rod 211. The support hole blocks 206 are evenly installed on the outer side of the support rod 211, and the outer side of the support hole blocks 206 is fixedly connected to the inner wall of the fixed cutter head 210 and the inner wall of the sliding cutter head 209.

[0018] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 3 to 4As shown, the frame mechanism 1 includes a top frame plate 11, with an accelerator 12 fixedly mounted on the top of the top frame plate 11. A drive wheel 13 is fixedly connected to the output end of the accelerator 12, and a chain 19 is driven to the outer side of the drive wheel 13. The drive wheel 13 is also driven to a driven wheel 18 via the chain 19. The inner wall of the driven wheel 18 is fixedly connected to one end of the drive shaft 201. The driven wheel 18 is connected to the accelerator 12 via a side buckle 15, which is connected to the traction mechanism. The lifting rod of the traction mechanism is rotatably connected to the side buckle 15, and the input end of the accelerator 12 is connected to the power output shaft of the traction mechanism via a universal joint. During operation, power is transmitted to the accelerator 12, causing the output shaft of the accelerator 12 to drive the drive wheel 13 to rotate. During the rotation, the driven wheel 18 and the drive wheel... The components 13 are connected by a chain 19 for transmission. The driven wheel 18 engages with the rotary tillage mechanism 2, driving the rotary tillage mechanism 2 to rotate at high speed. The blades are used to rotary till and turn the soil. Side fasteners 15 are fixedly installed on both sides of the top of the top frame plate 11, and side support plates 16 are fixedly installed on both sides of the bottom of the top frame plate 11. The bottom of the outer side of the side support plate 16 has symmetrical shaft holes, and side rotating wheels 17 are rotatably installed at the shaft holes of the side support plate 16. During operation, the side rotating wheels 17 contact the soil on both sides of the rotary tillage position, limiting the depth of the rotary tillage mechanism 2 into the soil. At the same time, the front baffle 14 prevents soil clods from being thrown towards the traction machine position during rotary tillage. The front baffle 14 is fixedly installed on the side of the bottom of the top frame plate 11 away from the roller leveling mechanism 3.

[0019] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 8 to 9 As shown, the roller leveling mechanism 3 includes a connecting plate 31, which is fixedly installed on the outside of the top frame plate 11. Both sides of the bottom of the connecting plate 31 are provided with perforated plates, and a connecting shaft 32 is rotatably installed between the perforated plates. An extension plate 33 is fixedly installed on the outside of the connecting shaft 32. A shaft groove plate 34 is fixedly installed at the end of the extension plate 33 away from the connecting plate 31. Through the fixed connection between the connecting plate 31 and the frame mechanism 1, during the rotary tillage traction process, the connecting plate 31 drives the shaft groove plate 34 through the extension plate 33, and drives the leveling roller 35 through the inner sliding shaft 36 at the shaft groove of the shaft groove plate 34, so that the leveling roller 35 rolls over the soil after rotary tillage. Shaft grooves are opened on the bottom of both sides of the shaft groove plate 34, and an inner sliding shaft 36 is slidably installed at the shaft groove of the shaft groove plate 34.

[0020] A leveling roller 35 is fixedly installed on the outer side of the inner sliding shaft 36. The outer side of the leveling roller 35 is evenly provided with protrusions. Shaft end sleeves 38 are rotatably installed on both sides of the inner sliding shaft 36. Fixing frames 39 are fixedly installed on the bottom of both sides of the shaft groove plate 34. The inner wall of the fixing frame 39 slides and adapts to the outer side of the shaft end sleeve 38. The inner wall of the fixing frame 39 is engaged with a side washer ring 37. The side washer ring 37 is symmetrically installed along the center position of the axis of the fixing frame 39. By using the cylindrical shape of the leveling roller 35 in conjunction with the evenly provided protrusions on the outer side, the raised soil is driven to move at the raised soil position, and the land after rotary tillage is leveled. The side washer ring 37 is made of elastic metal material, and the opposite surface of the side washer ring 37 fits against the two sides of the shaft end sleeve 38.

[0021] In use, the rotary tiller is connected to the agricultural traction machinery through the frame mechanism 1, and the driving force of the traction machinery is transmitted to the rotary tillage mechanism 2 through the frame mechanism 1. During operation, the traction machinery pulls the rotary tiller along the rotary tillage path, while driving the rotary tillage mechanism 2 to rotate at high speed. The blades are used to rotary till the land. At the same time, during the traction process, after the rotary tillage mechanism 2 has rotary tilled the land, the roller leveling mechanism 3 passes over the rotary tilled land to level it.

[0022] In the frame mechanism 1, the traction machine is connected to the accelerator 12 via the side buckle block 15, so that the lifting rod of the traction machine is rotatably connected to the side buckle block 15, and the input end of the accelerator 12 is connected to the power output shaft of the traction machine via a universal joint. During operation, power is transmitted to the accelerator 12, so that the output shaft of the accelerator 12 drives the drive wheel 13 to rotate. During the rotation, the driven wheel 18 is connected to the drive wheel 13 via the chain 19. With the engagement of the driven wheel 18 with the rotary tillage mechanism 2, the rotary tillage mechanism 2 is driven to rotate at high speed. The blades are used to rotary till and turn the soil. At the same time, during operation, the side rotating wheel 17 contacts the soil on both sides of the rotary tillage position, limiting the depth of the rotary tillage mechanism 2 into the soil. Meanwhile, the front baffle 14 prevents soil clods from being thrown towards the traction machine position during rotary tillage.

[0023] In the rotary tillage mechanism 2, power is transmitted to the drive shaft 201 through the engagement of the drive shaft 201 with the driven wheel 18, causing the cutter shaft cylinder 207 to rotate at high speed. During rotation, the bearings 204 at both ends of the cutter shaft cylinder 207 restrict the center position of the rotation axis of the cutter shaft cylinder 207. At the same time, the cutter shaft cylinder 207 drives the outer fixed cutter disc 210 and sliding cutter disc 209 to rotate. During rotation, the rotary tillage blades 203, which are rotatably mounted on the inner walls of the fixed cutter disc 210 and sliding cutter disc 209, rotate at high speed along the center position of the cutter disc. During rotation, the rotary tillage blades 203 contact the soil due to inertia. Afterwards, the land is rotary tilled. Before rotary tilling, the position of the rotary tiller blades can be adjusted according to the row spacing of the corn planting. A wrench is inserted into the notch of the inner turntable and engages with the hexagonal blocks at both ends of the threaded rod 213, causing the threaded rod 213 to rotate. During the rotation, the threaded position of the threaded rod 213 is connected to the threaded hole block 212, and the threaded hole block 212 is fixedly connected to the sliding cutter head 209. When the threaded rod 213 rotates, the distance between the fixed cutter head 210 and the sliding cutter head 209 is adjusted so that the blades are concentrated in the area where rotary tilling is needed, while leaving the row spacing empty.

[0024] In the roller leveling mechanism 3, the connecting plate 31 is fixedly connected to the frame mechanism 1. During the rotary tillage traction process, the connecting plate 31 drives the shaft groove plate 34 through the extension plate 33. The inner sliding shaft 36 at the shaft groove of the shaft groove plate 34 drives the leveling roller 35, so that the leveling roller 35 rolls over the land after rotary tillage. The cylindrical shape of the leveling roller 35, combined with the evenly arranged protrusions on the outer side, drives the movement of the protruding soil at the protruding soil position, and levels the land after rotary tillage.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary tiller with adjustable row spacing for corn planting, characterized in that, include: A frame mechanism (1) is provided, wherein a rotary tillage mechanism (2) is installed inside the frame mechanism (1), and a roller leveling mechanism (3) is fixedly installed on the outside of the frame mechanism (1). The rotary tillage mechanism (2) includes a drive shaft (201) and a fixed disk (205). The drive shaft (201) is rotatably installed inside the frame mechanism (1). The fixed disk (205) is fixedly installed on both sides of the inner wall of the frame mechanism (1). The opposite surfaces of the fixed disk (205) are provided with convex rings, and the opposite surfaces of the fixed disk (205) are rotatably installed with inner turntables (202). The opposite surfaces of the inner turntables (202) are evenly provided with rod holes, and threaded rods (213) and support rods (211) are rotatably installed between the inner turntables (202). The support rods (211) are symmetrically installed along the center position of the axis of the inner turntables (202). A cutter shaft cylinder (207) is fixedly installed on the outer side of the drive shaft (201). A fixed cutter disc (210) is fixedly installed on the outer side of the cutter shaft cylinder (207). A sliding cutter disc (209) is slidably installed on the outer side of the cutter shaft cylinder (207). The sliding cutter disc (209) and the fixed cutter disc (210) are evenly installed axially on the outer side of the cutter shaft cylinder (207). The sliding cutter disc (209) and the fixed cutter disc (210) are staggered. Thread grooves are evenly provided on the outer side of the threaded rod (213). Threaded hole blocks (212) are threadedly connected to the thread grooves of the threaded rod (213). The outer side of the threaded hole blocks (212) is fixedly connected to the inner wall of the sliding cutter disc (209).

2. The rotary tiller with adjustable row spacing for corn planting according to claim 1, characterized in that: Rotary tillage blades (203) are rotatably mounted on the inner walls of both the fixed cutter head (210) and the sliding cutter head (209). The rotary tillage blades (203) are evenly installed along the center position of the drive shaft (201). Hexagonal blocks are provided at both ends of the threaded rod (213). A notch is opened on the outer side of the inner turntable (202), and the notch of the inner turntable (202) corresponds to the hexagonal block of the threaded rod (213).

3. The rotary tiller with adjustable row spacing for corn planting according to claim 2, characterized in that: Bearings (204) are rotatably installed at both ends of the outer side of the cutter shaft cylinder (207). The cutter shaft cylinder (207) is rotatably connected to the inner wall of the frame mechanism (1) through the bearings (204). A support sleeve (208) is fixedly installed on the outer side of the cutter shaft cylinder (207). The inner wall of the support sleeve (208) is rotatably connected to the outer side of the support rod (211) and the non-threaded position of the outer side of the threaded rod (213).

4. A rotary tiller with adjustable row spacing for corn planting according to claim 3, characterized in that: The support rod (211) is slidably connected to a support hole block (206). The support hole block (206) is evenly installed on the outside of the support rod (211), and the outside of the support hole block (206) is fixedly connected to the inner wall of the fixed cutter head (210) and the inner wall of the sliding cutter head (209).

5. A rotary tiller with adjustable row spacing for corn planting according to claim 1, characterized in that: The frame mechanism (1) includes a top frame plate (11), an accelerator (12) is fixedly installed on the top of the top frame plate (11), a drive wheel (13) is fixedly connected to the output end of the accelerator (12), a wheel chain (19) is driven to the outside of the drive wheel (13), and a driven wheel (18) is driven to the drive wheel (13) through the wheel chain (19). The inner wall of the driven wheel (18) is fixedly connected to one end of the drive shaft (201).

6. A rotary tiller with adjustable row spacing for corn planting according to claim 5, characterized in that: Side buckles (15) are fixedly installed on both sides of the top of the top frame plate (11), and side support plates (16) are fixedly installed on both sides of the bottom of the top frame plate (11). Shaft holes are symmetrically opened on the bottom of the outer side of the side support plate (16), and side wheels (17) are rotatably installed at the shaft holes of the side support plate (16). A front baffle (14) is fixedly installed on the side of the bottom of the top frame plate (11) away from the roller leveling mechanism (3).

7. A rotary tiller with adjustable row spacing for corn planting according to claim 6, characterized in that: The roller leveling mechanism (3) includes a connecting plate (31), which is fixedly installed on the outside of the top frame plate (11). Both sides of the bottom of the connecting plate (31) are provided with perforated plates, and a connecting shaft (32) is rotatably installed between the perforated plates. An extension plate (33) is fixedly installed on the outside of the connecting shaft (32).

8. A rotary tiller with adjustable row spacing for corn planting according to claim 7, characterized in that: The extension plate (33) is fixedly installed with a shaft groove plate (34) at one end away from the connecting plate (31). Shaft grooves are provided at the bottom of both sides of the shaft groove plate (34), and an inner sliding shaft (36) is slidably installed at the shaft groove of the shaft groove plate (34).

9. A rotary tiller with adjustable row spacing for corn planting according to claim 8, characterized in that: A leveling roller (35) is fixedly installed on the outer side of the inner sliding shaft (36). Protrusions are evenly arranged on the outer side of the leveling roller (35). Shaft end sleeves (38) are rotatably installed on both sides of the inner sliding shaft (36).

10. A rotary tiller with adjustable row spacing for corn planting according to claim 9, characterized in that: A fixing frame (39) is fixedly installed on the bottom of both sides of the shaft groove plate (34). The inner wall of the fixing frame (39) is slidably adapted to the outer side of the shaft end sleeve (38). A side washer (37) is snapped into the inner wall of the fixing frame (39). The side washer (37) is symmetrically installed along the center position of the axis of the fixing frame (39). The side washer (37) is made of elastic metal material. The opposite face of the side washer (37) is in contact with both sides of the shaft end sleeve (38).

Images