A rotary cultivator with soil leveling function

Abstract

The application relates to the technical field of rotary cultivators, and particularly discloses a rotary cultivator with a soil leveling function, which comprises a rotary cultivator body, a driving shaft arranged on the rotary cultivator body and a transmission mechanism arranged on the driving shaft, a cutter shaft connected to the driving shaft through the transmission mechanism, a plurality of blades for turning over soil installed on the cutter shaft, arc-shaped supports arranged on the two sides of the rotary cultivator body, a soil blocking cover arranged on the rotary cultivator body and a soil throwing component arranged below the soil blocking cover. The rotary cultivator with the soil leveling function is provided, the soil throwing plate is arranged, the soil throwing plate collides with the lifted soil blocks in the rotating process, the soil blocks are pushed to the high position of the arc-shaped plate, and finally, the soil blocks fall on one side of the arc-shaped plate, so that the dust on the arc-shaped plate and the dust in the upper area can be thrown on the rotary cultivation position, and the dust turned over by the rotary cultivation is returned to the rotary cultivation position.

Description

Technical Field

[0001] This invention relates to the field of rotary tiller technology, and more specifically to a rotary tiller with soil leveling function. Background Technology

[0002] Rotary tillers drive the rotary tiller shaft to rotate at high speed via the tractor's power take-off shaft. This causes the rotary tiller blades on the shaft to cut and break up the soil, throwing the soil clods backward. At the same time, the forward movement of the unit causes the blades to continuously till, break up, and mix the soil, ultimately forming a flat topsoil layer that can be used for sowing.

[0003] In existing technologies, rotary tillers can be used to bury stubble for subsequent sowing. They utilize high-speed rotating blades to perform an integrated "cut-crush-mix-cover" operation on crop residues (such as rice stubble, wheat stubble, corn stubble, etc.) in the field, integrating the residues into the topsoil to achieve the effect of "stubble removal and returning to the field." However, existing rotary tillers always throw soil clods backward, resulting in some clods being thrown out when tilling at the end of the paddy field, while insufficient clods are available to cover the tail end. Furthermore, when tilling the middle section, if there are depressions on the left and right sides, there will be insufficient soil to cover those areas, meaning the soil on both sides will not be level. Summary of the Invention

[0004] The purpose of this invention is to provide a rotary tiller with soil leveling function to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A rotary tiller with soil leveling function includes a rotary tiller body, a drive shaft and a transmission mechanism mounted thereon on the rotary tiller body, a cutter shaft connected to the drive shaft via the transmission mechanism, a plurality of blades for turning the soil mounted on the cutter shaft, arc-shaped supports on both sides of the rotary tiller body, a soil retaining cover on the rotary tiller body, and a soil throwing component below the soil retaining cover. The soil throwing component includes a soil throwing plate rotatably connected to the bottom end of the soil retaining cover. The soil throwing component drives the soil throwing plate to reciprocate, so that the dust generated by the rotary tillage of the blades is concentrated and thrown near the blades.

[0007] Furthermore, the leveling component includes an arc panel, which is movably disposed between a pair of arc-shaped supports. The soil-throwing plate slides close to the top surface of the arc panel to push away the dust that falls on the arc panel.

[0008] Furthermore, a drive rod is fixedly connected to the soil-throwing plate, a drive plate is provided on the drive rod, and a pair of limiting plates are fixedly connected to the drive plate. When the drive plate moves back and forth, it drives the soil-throwing plate to swing back and forth.

[0009] Furthermore, the transmission mechanism includes a chain and a driven shaft. The outer ends of the drive shaft and the driven shaft are fixedly connected to transmission wheels. The chain is connected to a pair of transmission wheels. The outer end of the cutter shaft is fixedly fitted with a first reduction gear. The outer end of the driven shaft is fixedly fitted with a second reduction gear. The first reduction gear and the second reduction gear are meshed together.

[0010] Furthermore, a reciprocating component is provided outside the transmission box. The reciprocating component includes a working box, a movable shaft is rotatably connected inside the working box, a drive motor is fixedly connected to the output end of the movable shaft, a drive disk is fixedly connected to the movable shaft, a lever is fixedly connected to the drive disk, a fixed shaft is fixedly connected to the inner side of the working box, a reciprocating rod is rotatably connected to the fixed shaft, a movable groove is provided on the reciprocating rod, and a drive rack is provided at the outer end of the reciprocating rod.

[0011] Furthermore, a guide groove is provided at the bottom of the work box, a guide block is slidably connected inside the guide groove, a driven rack is fixedly connected to the top of the guide block, the drive rack and the driven rack are meshed together, and the guide block maintains horizontal reciprocating motion.

[0012] Furthermore, a leveling component is provided between the pair of arc-shaped supports. The leveling component includes a leveling plate, which is responsible for driving the soil-beating plate downward to break up and level the soil clods.

[0013] Furthermore, the leveling component includes a telescopic member disposed on the side end of the arc panel, the end of the telescopic rod is movably connected to the leveling plate, an outer frame is slidably connected to the outside of the arc panel, the leveling plate rotates within the outer frame, and a traction member is fixedly connected to the soil dumping plate, the traction member movably penetrates into the interior of the telescopic member and is connected to the leveling plate.

[0014] Furthermore, the flat plate has two motion states: the first state is rotation and the second state is sliding. The telescopic component is equipped with an elastic element. During the lifting process of the soil-throwing plate, after pulling the flat plate to a horizontal position, it is driven to move downward.

[0015] In the above technical solution, the rotary tiller with soil leveling function provided by the present invention has the following beneficial effects:

[0016] By incorporating a reciprocating oscillating soil-throwing plate, the plate not only collides with the raised soil clods during rotation, achieving secondary soil breaking, but also throws the collected soil onto the rotary tillage area. It also pushes soil clods landing on the curved plate to a higher position on the plate, ultimately settling on one side. This ensures that dust splashed onto the curved plate and above it is effectively scattered onto the rotary tillage area, returning the dust generated during each tillage cycle to the tillage location. Furthermore, the curved plate leveling function facilitates soil leveling at the front and rear, while the intermittently rotating and pressing flat plate levels achieve left and right soil leveling. This multifunctional rotary tiller is beneficial for stubble burying operations.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0018] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall external structure provided in Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall side view structure provided in Embodiment 1 of the present invention;

[0022] Figure 3 This is a cross-sectional view of the transmission box provided in Embodiment 1 of the present invention;

[0023] Figure 4 This is a cross-sectional view of the workbox provided in Embodiment 1 of the present invention;

[0024] Figure 5 This is a schematic diagram of the overall rear view structure provided in Embodiment 1 of the present invention;

[0025] Figure 6 This is a schematic diagram of the leveling component structure provided in Embodiment 2 of the present invention;

[0026] Figure 7 Provided for Embodiment 2 of the present invention Figure 6 A magnified structural diagram at point A;

[0027] Figure 8This is a schematic diagram of the outer frame and the internal structure of the hollow cylinder provided in Embodiment 2 of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Rotary tiller body; 11. Drive shaft; 12. Cutter shaft; 13. Blade; 14. Soil retaining cover; 2. Transmission mechanism; 21. Chain; 22. Driven shaft; 23. Drive wheel; 24. First reduction gear; 25. Second reduction gear; 26. Transmission box; 3. Soil throwing component; 31. Soil throwing plate; 32. Drive rod; 33. Drive plate; 34. Limiting plate; 4. Leveling component; 41. Leveling plate; 42. Curved plate; 46. Telescopic component; 461 462. Hollow cylinder; 463. Movable rod; 464. Compression spring; 47. Outer frame; 48. Traction component; 49. Limiting block; 410. Baffle; 411. Spring coil; 5. Reciprocating component; 51. Working box; 52. Movable shaft; 53. Drive motor; 54. Drive disc; 55. Lever; 56. Fixed shaft; 57. Reciprocating rod; 58. Movable groove; 59. Drive rack; 510. Guide groove; 511. Guide block; 512. Driven rack. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0031] Example 1, please refer to Figure 1-5 A rotary tiller with soil leveling function includes a rotary tiller body 1, a drive shaft 11 and a transmission mechanism 2 mounted on the rotary tiller body 1, the drive shaft 11 is connected to a cutter shaft 12 through the transmission mechanism 2, a plurality of blades 13 for turning soil are mounted on the cutter shaft 12, arc-shaped supports are provided on both sides of the rotary tiller body 1, a soil retaining cover 14 is provided on the rotary tiller body 1, and a soil throwing component 3 is provided below the soil retaining cover 14. The soil throwing component 3 includes a soil throwing plate 31 rotatably connected to the bottom end of the soil retaining cover 14. The soil throwing component 3 drives the soil throwing plate 31 to reciprocate, so that the dust generated by the rotary tillage of the blades 13 is concentrated and thrown near the blades 13.

[0032] The transmission mechanism 2 includes a chain 21, a driven shaft 22, and a transmission box 26 fixedly installed on the rotary tiller body 1. The outer ends of the drive shaft 11 and the driven shaft 22 are fixedly connected to the transmission wheels 23. The chain 21 is connected to the transmission wheels 23. The outer end of the cutter shaft 12 is fixedly fitted with a first reduction gear 24. The outer end of the driven shaft 22 is fixedly fitted with a second reduction gear 25. The first reduction gear 24 and the second reduction gear 25 are meshed together.

[0033] The drive source drives the drive shaft 11 to rotate, and the drive shaft 11 drives the driven shaft 22 to rotate through the transmission wheel 23 and the chain 21. Since the first reduction gear 24 and the second reduction gear 25 are meshed and connected, the cutter shaft rotates rapidly. This is the prior art, so its working principle is briefly described here.

[0034] Specifically, one end of the cutter shaft 12 extends into the interior of the transmission box 26. The rotary tiller body 1 has its own drive source, which drives the drive shaft 11 to rotate rapidly. The drive shaft 11 uses the transmission mechanism 2 to drive the cutter shaft 12 to rotate. The cutter shaft 12 is fixedly installed with the blades 13 by bolts. During the rotation of the blades 13, they insert into the soil and perform rotary tillage and crushing, and splash dust outward.

[0035] This embodiment is applicable to dry soil rotary tillage, and the rotary tiller in this case is used to cover stubble. It uses high-speed rotating rotary blades 13 to perform an integrated operation of "cutting-breaking-mixing-covering" on crop residues (such as rice stubble, wheat stubble, corn stubble, etc.) in the field, integrating the residues into the topsoil to achieve the effect of "returning stubble to the field". Therefore, one of the purposes of this case is to cover the soil clods generated by rotary tillage back onto the rotary tillage area.

[0036] During operation, the cutter shaft 12 rotates with multiple blades 13. The soil clods produced by rotary tillage collide with the oncoming rotating soil-throwing plate 31, achieving secondary soil breaking. Then, a large number of soil clods are scattered by the soil-throwing plate 31 onto the rotary tillage area (that is, the area in front of the rotating blades 13), so that the soil broken during the initial rotary tillage will not be scattered outside the rotary tillage area. Moreover, when the rotary tiller reaches the end of its operation, the soil at the position being rotary tilled will not be scattered at the front, but will be scattered at the position being rotary tilled, thus solving the problem of insufficient soil coverage in the final rotary tillage area, and ultimately improving the stubble covering effect of the rotary tiller at the beginning and end.

[0037] In a further embodiment of the present invention, a drive rod 32 is fixedly connected to the soil-throwing plate 31, a drive plate 33 is provided on the drive rod 32, and a pair of limiting plates 34 are fixedly connected to the drive plate 33. When the drive plate 33 moves back and forth, it drives the soil-throwing plate 31 to swing back and forth.

[0038] In a further embodiment of the present invention, a reciprocating component 5 is provided outside the transmission box 26. The reciprocating component 5 includes a working box 51. A movable shaft 52 is rotatably connected inside the working box 51. A drive disk 54 is fixedly connected to the movable shaft 52. A lever 55 is fixedly connected to the drive disk 54. A fixed shaft 56 is fixedly connected to the inner side of the working box 51. A reciprocating rod 57 is rotatably connected to the fixed shaft 56. A movable groove 58 is provided on the reciprocating rod 57. A drive rack 59 is provided at the outer end of the reciprocating rod 57. A guide groove 510 is provided at the bottom of the working box 51. A guide block 511 is slidably connected inside the guide groove 510. A driven rack 512 is fixedly connected to the top of the guide block 511. The drive rack 59 and the driven rack 512 are meshed together. Friction wheels are fixedly sleeved on both the movable shaft 52 and the driven shaft 22. A friction belt is driven to the outside of the friction wheels. The guide block 511 maintains horizontal reciprocating motion.

[0039] A drive motor 53 is fixedly connected to the outer end of the work box 51, and a dust cover is installed on the outside of the drive motor 53.

[0040] When the drive motor 53 is turned on, the drive motor 53 drives the movable shaft 52 to rotate. The movable shaft 52 drives the drive disc 54 to rotate continuously. During the rotation of the drive disc 54, the lever 55 also rotates. Since the lower part of the reciprocating rod 57 is fixed, the lever 55 can push the reciprocating rod 57 to swing back and forth during the rotation, thereby causing the reciprocating rod 57 to push the driven rack 512 and the guide block 511 to move back and forth horizontally. Since the top of the soil-throwing plate 31 is rotatably connected to the bottom of the retaining cover 14, and the side end slides between a pair of limiting plates 34 through the drive rod 32, when the pair of limiting plates 34 reciprocate horizontally, they can push the drive rod 32 to move, thereby realizing that the soil-throwing plate 31 starts to rotate around its top, with a rotation angle of 30-60 degrees.

[0041] In a further embodiment of the present invention, the leveling component 4 includes an arc panel 42, which is movably disposed between a pair of arc-shaped supports. The soil-throwing plate 31 slides close to the top surface of the arc panel 42 to push away the dust that falls on the arc panel 42.

[0042] During the rotation of the soil-throwing plate 31, the soil clods falling on the arc panel 42 will be pushed to the high point of the arc panel 42 and eventually fall on one side of the arc panel 42, so that the dust splashed on the arc panel and the area above it can be thrown to the rotary tillage position, so that the dust from each rotary tillage returns to the rotary tillage position.

[0043] By setting the arc panel 42, when there are gaps in the spread pattern, the bottom end of the arc panel 42 can be used to level the entire rotary tillage area in the front-to-back direction. Note: In this case, front-to-back refers to the direction of movement of the rotary tiller, and left-to-right refers to the two sides of the rotary tiller.

[0044] Example 2 differs from Example 1 in that the following technical features are added: Please refer to... Figure 6-8 In a further embodiment of the present invention, a leveling component 4 is provided between a pair of arc-shaped supports. The leveling component 4 includes a leveling plate 41 (width adaptively set, 10-30 cm). The leveling component 4 is responsible for driving the soil-beating plate downward to break and level the soil clods. The leveling component 4 includes a telescopic member 46 fixedly connected to the side end of the arc panel 42. The end of the telescopic rod is movably connected to the leveling plate 41. An outer frame 47 is slidably connected to the outside of the arc panel 42. The leveling plate 41 rotates within the outer frame 47. A traction member 48 is fixedly connected to the soil-throwing plate 31. The traction member 48 movably penetrates into the interior of the telescopic member 46 and is connected to the leveling plate 41.

[0045] In a further embodiment of the present invention, the flat plate 41 has two motion states: the first state is rotation and the second state is sliding. The telescopic member 46 is provided with an elastic member inside. During the lifting process of the soil-throwing plate 31, the flat plate 41 is pulled to rotate to a horizontal position and then driven to move downward.

[0046] Specifically, the telescopic component 46 includes a hollow cylinder 461, a movable rod 462 is slidably connected inside the hollow cylinder 461, a compression spring 463 is fixedly connected between the hollow cylinder 461 and the movable rod 462, and a connecting rod is fixedly connected between the outer end of the hollow cylinder 461 and the arc panel 42, and the connecting rod slides along the arc panel 42.

[0047] The arc panel 42, connecting rod 49, and movable rod 462 are all provided with rope holes. The outer frame 47 includes a hollow column. The traction member 48 moves through the rope hole. Multiple sliders are provided inside the outer frame 47 and the hollow cylinder 461 (to prevent the traction member 48 from sliding and causing friction damage). A limit block 49 is provided inside the hollow column. A rotating shaft is fixedly connected to the side end of the flat plate 41. The rotating shaft moves through the outer frame 47. A baffle 410 is fixedly connected to the outer end of the rotating shaft. When the baffle 410 rotates to the limit block 49, it stops rotating and presses the movable rod 462 to compress the spring 463, causing the flat plate 41 to move down and level the left and right areas of the soil, so that the depressions are filled.

[0048] A spring coil 411 is sleeved on the outside of the rotating shaft. One end of the spring coil 411 is fixedly connected to the rotating shaft, and the other end is fixedly connected to the inner wall of the hollow column. After rotating 90 degrees and becoming parallel to the hollow column, the subsequent traction component 48 relaxes, and the compression spring 463 pushes the movable rod 462 and the hollow column upward under its own elastic force. Then, the rotating shaft can rotate 90 degrees under the action of the spring coil 411, so that the flat plate 41 is perpendicular to 90 degrees. At this time, the soil that is thrown can fall on one side of the arc panel 42, which is convenient for subsequent compression and leveling.

[0049] Optionally, the traction component 48 is externally wrapped with a flexible corrugated pipe, which connects the soil-throwing plate 31 and the arc-shaped plate 42 to achieve a sealing purpose. Similarly, a flexible corrugated pipe can also be installed between the flat plate 41 and the hollow column.

[0050] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rotary tiller with soil leveling function, comprising a rotary tiller body, a drive shaft and a transmission mechanism disposed thereon on the rotary tiller body, the drive shaft being connected to a cutter shaft via the transmission mechanism, the cutter shaft being equipped with a plurality of blades for turning the soil, and arc-shaped supports being provided on both sides of the rotary tiller body, characterized in that: The rotary tiller body is equipped with a soil retaining cover, and a soil throwing component is provided below the soil retaining cover. The soil throwing component includes a soil throwing plate rotatably connected to the bottom end of the soil retaining cover. The soil throwing component drives the soil throwing plate to reciprocate, so that the dust generated by the rotary tillage of the blades is concentrated and thrown near the blades. A leveling component is provided between a pair of arc-shaped supports. The leveling component includes an arc panel, which is movably disposed between the pair of arc-shaped supports. The soil-throwing plate slides close to the top surface of the arc panel to push away the dust falling on the arc panel. The leveling component includes a leveling plate, which is responsible for driving the soil-throwing plate to move downward to break up and level the soil clods. The leveling component includes a telescopic component disposed on the side end of the arc panel. The end of the telescopic component is movably connected to the leveling plate. An outer frame is slidably connected to the outside of the arc panel. The leveling plate rotates within the outer frame. A traction component is fixedly connected to the soil dumping plate. The traction component movably penetrates into the interior of the telescopic component and is connected to the leveling plate. The flat plate has two motion states: the first state is rotation and the second state is sliding. The telescopic component is equipped with an elastic element. During the lifting process of the soil-throwing plate, the flat plate is pulled to rotate to a horizontal position and then driven to move downward. The telescopic component includes a hollow cylinder, a movable rod is slidably connected inside the hollow cylinder, a compression spring is fixedly connected between the hollow cylinder and the movable rod, and a connecting rod is fixedly connected between the outer end of the hollow cylinder and the arc panel, with the connecting rod sliding along the arc panel. A spring coil is fitted around the outside of the rotating shaft. One end of the spring coil is fixedly connected to the rotating shaft, and the other end is fixedly connected to the inner wall of the hollow column.

2. The rotary tiller with soil leveling function according to claim 1, characterized in that, A drive rod is fixedly connected to the soil-throwing plate, a drive plate is provided on the drive rod, and a pair of limiting plates are fixedly connected to the drive plate. When the drive plate moves back and forth, it drives the soil-throwing plate to swing back and forth.

3. The rotary tiller with soil leveling function according to claim 2, characterized in that, The transmission mechanism includes a chain, a driven shaft, and a transmission box fixedly mounted on the rotary tiller body. The outer ends of the drive shaft and the driven shaft are fixedly connected to transmission wheels. The chain is connected to a pair of transmission wheels. The outer end of the cutter shaft is fixedly fitted with a first reduction gear. The outer end of the driven shaft is fixedly fitted with a second reduction gear. The first reduction gear and the second reduction gear are meshed together.

4. The rotary tiller with soil leveling function according to claim 3, characterized in that, A reciprocating component is provided outside the transmission box. The reciprocating component includes a working box. A movable shaft is rotatably connected inside the working box. A drive motor is fixedly connected to the output end of the movable shaft. A drive disk is fixedly connected to the movable shaft. A lever is fixedly connected to the drive disk. A fixed shaft is fixedly connected to the inner side of the working box. A reciprocating rod is rotatably connected to the fixed shaft. A movable groove is provided on the reciprocating rod. A drive rack is provided at the outer end of the reciprocating rod.

5. The rotary tiller with soil leveling function according to claim 4, characterized in that, The bottom of the work box is provided with a guide groove, and a guide block is slidably connected inside the guide groove. A driven rack is fixedly connected to the top of the guide block. The driving rack and the driven rack are meshed together, and the guide block maintains horizontal reciprocating motion.

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