Multifunctional agricultural rotary tillage mechanism

Abstract

A multifunctional agricultural rotary tillage mechanism relates to the technical field of agricultural planting and soil preparation and comprises a main body rack, a first extension frame and a second extension frame are respectively arranged on two transverse sides of the main body rack in a telescopic manner, a transmission assembly is arranged on the main body rack, a rotary tillage assembly is arranged on the first extension frame, and a ploughing assembly is arranged on the second extension frame. The problems that in the using process of an agricultural rotary cultivator in the prior art, due to the fact that the function integration degree is insufficient, soil is rolled for multiple times, the self-adaptive adjusting capacity is insufficient, and key components are seriously abraded are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural land preparation, and particularly relates to a multifunctional agricultural rotary tillage mechanism. Background Art

[0002] As the core equipment for modern agricultural mechanized production, agricultural rotary tillers achieve an efficient tillage mode of "soil crushing - soil loosening - fertilizer mixing - stubble elimination" through their unique rotating blade structure. The device uses L-shaped or curved knives optimized by dynamics design to form a continuous cutting motion within the rotational speed range of 180 - 280 r / min. It can not only make the soil fragmentation rate of the 20 - 30 cm tillage layer reach more than 85%, but also evenly mix organic fertilizers or slow-release fertilizers into the soil layer, and the operation efficiency is 3 - 5 times higher than that of traditional ploughing operations. Its core value lies in: by improving the soil three-phase structure (solid phase 40%, liquid phase 30%, gas phase 30%), significantly enhancing the soil water infiltration rate (increasing by 45 - 60%) and fertilizer retention capacity, creating an ideal environment for crop root development.

[0003] However, the current mainstream rotary tillers expose significant technical limitations under complex agronomic requirements: 1. The problem of multiple rollings caused by insufficient function integration. Existing equipment generally lacks modular designs for functions such as deep loosening, ridging, and pressing. Completing a full set of land preparation operations requires 3 - 5 passes in the field, which not only increases fuel consumption by 15 - 20%, but repeated rollings will also cause the bulk density of the tillage layer to increase by 0.15 - 0.25 g / cm³, damaging the soil aggregate structure.

[0004] 2. Lack of adaptive adjustment ability. Traditional models adopt a fixed knife shaft layout and cannot dynamically adjust the rotary tillage depth (10 - 25 cm) and blade spacing (usually 15 - 20 cm) according to soil moisture conditions (such as the fluctuation range of water content of 15 - 25%), resulting in problems such as uneven tillage depth and a 30% decrease in soil fragmentation rate when operating in heavy clay soil or on slopes.

[0005] 3. Serious wear of key components. Field tests have shown that when operating in plots with soil hardness > 800 kPa or gravel content > 8%, the service life of the 65Mn steel blades is shortened by 40 - 60%; when the straw coverage rate > 0.8 kg / m², the probability of the knife shaft being wound reaches more than 70%, and it is necessary to stop the machine for cleaning every 2 hours of operation, seriously affecting the operation efficiency.

[0006] In summary, it is obvious that the existing technology has inconveniences and defects in actual use, so it is necessary to be improved. Summary of the Invention

[0007] In view of the defects in the prior art, the present invention provides a multi-functional agricultural rotary tillage mechanism to solve the problems existing in the traditional agricultural rotary tiller during use, such as insufficient function integration resulting in multiple soil rollings, lack of adaptive adjustment ability, and serious wear of key components.

[0008] To achieve the above object, the present invention provides the following technical solutions: A multi-functional agricultural rotary tillage mechanism includes a main body frame. First and second extension frames are telescopically provided on the transverse sides of the main body frame respectively. A transmission component is provided on the main body frame. A rotary tillage component is provided on the first extension frame, and a ploughing component is provided on the second extension frame.

[0009] As an optimized solution, the rotary tillage component includes symmetrically arranged first and second swing plates. A rotary tillage cylinder is rotatably provided between the first and second swing plates. The rotary tillage cylinder is composed of multiple combined half-cylinders that are telescopically butted. Three centrally symmetric rotary tillage knives are fixedly connected to the outer peripheral wall of each combined half-cylinder respectively.

[0010] As an optimized solution, the ploughing component includes symmetrically arranged third and fourth swing plates. A ploughing cylinder is rotatably provided between the third and fourth swing plates. The ploughing cylinder includes multiple telescopically butted split cylinders. Mounting sleeves are fixedly connected to the outer peripheral wall of each split cylinder respectively. Fixed clamping rings are fixedly connected to each mounting sleeve respectively. A number of ploughing plates are inserted into each fixed clamping ring respectively.

[0011] As an optimized solution, a first rotating motor is fixedly connected to the transverse outer wall of the first swing plate. The end of the output shaft of the first rotating motor passes through the first swing plate and is fixedly connected to the closed outer end face of the last combined half-cylinder.

[0012] As an optimized solution, a second rotating motor is fixedly connected to the transverse outer wall of the third swing plate. The end of the output shaft of the second rotating motor passes through the third swing plate and is fixedly connected to the closed outer end face of the last split cylinder.

[0013] As an optimized solution, the transmission component includes a transmission driving motor provided below the traction connection frame. A cylindrical transmission box is provided directly below the main body frame. A vertical connecting square pipe is fixedly connected to the center of the lower surface of the main body frame. The lower end of the connecting square pipe is fixedly communicated with the cylindrical transmission box.

[0014] As an optimized solution, a first transmission wheel and a second transmission wheel are provided inside the cylindrical transmission case. The middle parts of the first transmission wheel and the second transmission wheel are rotationally butted. Two transmission belts are externally connected to the transmission drive motor, and the two transmission belts are respectively sleeved on the first transmission wheel and the second transmission wheel.

[0015] As an optimized solution, two strip-shaped positioning base plates are respectively fixedly connected to both sides of the upper surface of the main body frame, and extension positioning plates opposite to the positioning base plates are respectively fixedly connected to the upper surfaces of the first extension frame and the second extension frame.

[0016] As an optimized solution, an electric control telescopic cylinder is provided between the positioning base plate and the extension positioning plate.

[0017] As an optimized solution, a vertical rotary tillage lifting plate is fixedly connected to the lateral side end face of the first extension frame. The first swing plate is rotatably installed at the lower end inside the rotary tillage lifting plate. A first horizontal connecting shaft is fixedly connected to the center of the outer end face of the second swing plate. The end of the first horizontal connecting shaft passes through the side end face of the cylindrical transmission case and is fixedly connected to the center of the side end face of the first transmission wheel.

[0018] As an optimized solution, fixed circular plates are respectively fixedly connected to the middle sections inside each combined half cylinder, and telescopic connecting rods are fixedly connected between two adjacent fixed circular plates.

[0019] As an optimized solution, a vertical ploughing lifting plate is fixedly connected to the lateral side end face of the second extension frame. The third swing plate is rotatably installed at the lower end inside the ploughing lifting plate. A second horizontal connecting shaft is fixedly connected to the center of the end face of the fourth swing plate. The end of the second horizontal connecting shaft passes through the side end face of the cylindrical transmission case and is fixedly connected to the center of the side end face of the second transmission wheel.

[0020] As an optimized solution, two clamping and positioning plates are respectively fixedly connected inside each section of the split column cylinder. Square clamping slots are respectively formed in each clamping and positioning plate, and limiting square columns are respectively arranged in each clamping slot.

[0021] As an optimized solution, a connecting block is fixedly connected between two adjacent limiting square columns. Circular tail plates are respectively fixedly connected to the ends of each limiting square column. A compression spring is provided between the circular tail plate and the clamping and positioning plate, and the compression spring is sleeved on the limiting square column.

[0022] As an optimized solution, a traction connecting frame is fixedly connected to the middle of the upper surface of the main body frame.

[0023] Compared with the prior art, the beneficial effects of the present invention are: The present invention uses an integrated design of rotary tillage components and tillage components, so that a single device has dual operation functions of rotary tillage and tillage. This functional alternation working mechanism can complete multiple soil preparation processes in a single land operation, effectively reducing the number of land operations and avoiding soil structure damage caused by repeated rolling.

[0024] The transmission assembly provided in the present invention adopts a modular design to realize power distribution and function switching. Specifically, the transmission assembly includes a transmission drive motor and a cylindrical transmission box, wherein the cylindrical transmission box is provided with a first and a second transmission wheel that are rotatably connected, and the transmission drive motor drives the two transmission wheels to rotate respectively through a double transmission belt, thereby driving the first and the second swing plates and the third and the fourth swing plates to adjust their angles respectively, and finally realizing the station switching of the rotary tillage and the turning tillage assembly.

[0025] The rotary tillage assembly provided in the present invention adopts an innovative adaptive structural design: a rotary tillage column is formed by splicing a plurality of combined half-cylinders through a telescopic connecting rod, and three groups of rotary tillage blades are evenly distributed on the periphery of each combined half-cylinder. The rotary tillage column is mounted between the first and second swing plates, and the first rotary motor drives the column to rotate to achieve basic rotary tillage operations, and has a dual adjustment function: the cutting depth of the rotary tillage blade can be changed by adjusting the angle of the first and second swing plates; the lateral displacement of the first extension frame is controlled by an electrically controlled telescopic cylinder to achieve stepless adjustment of the column length, thereby dynamically changing the spacing between the rotary tillage blade groups to meet the requirements of different working conditions.

[0026] The tilling assembly provided in the present invention has dual operational advantages: in the front operation, it can effectively turn over and collect gravel and straw in the soil to avoid abnormal wear of the rotary tiller; in the rear operation, the soil after rotary tillage can be finely leveled. The core component of the tilling assembly is a tilling cylinder composed of split cylinders telescopically connected, and multiple groups of tilling plates are arranged on the surface of each split cylinder. The tilling cylinder is driven to rotate by the second rotary motor to turn over the soil, and the spacing between the tilling plates can be accurately controlled with the telescopic adjustment function of the second extension frame. This design not only protects the rotary tillage components, but also ensures the uniform loosening effect of the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0028] Figure 1 It is a schematic cross-sectional view of the internal structure of each component in the present invention in the main viewing direction; Figure 2 It is a schematic cross-sectional view of the internal structure of each component in the present invention in a top view direction; Figure 3 It is a schematic cross-sectional view of the internal structure of the present invention in the side view direction; Figure 4 It is a schematic overall external view of the present invention in the front view direction; Figure 5 It is a schematic overall external view of the present invention in the top view direction.

[0029] In the figure: 1 - main body frame, 2 - first extension frame, 3 - second extension frame, 4 - traction connection frame, 5 - drive motor, 6 - cylindrical transmission box, 7 - connecting square pipe, 8 - first transmission wheel, 9 - second transmission wheel, 10 - transmission belt, 11 - positioning base plate, 12 - extension positioning plate, 13 - electric control telescopic cylinder, 14 - rotary tillage lifting plate, 15 - first swing plate, 16 - second swing plate, 17 - first horizontal coupling shaft, 18 - combined half cylinder, 19 - rotary tillage blade, 20 - first rotation motor, 21 - fixed circular plate, 22 - telescopic connecting rod, 23 - ploughing lifting plate, 24 - third swing plate, 25 - fourth swing plate, 26 - second horizontal coupling shaft, 27 - split column cylinder, 28 - clamping and positioning plate, 29 - limiting square column, 30 - connecting block, 31 - circular tail plate, 32 - compression spring, 33 - mounting sleeve, 34 - fixed snap ring, 35 - ploughing plate, 36 - second rotation motor. Detailed implementation manners

[0030] Hereinafter, embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0031] As Figures 1 to 5 shown, a multifunctional agricultural rotary tillage mechanism includes a main body frame 1. The first extension frame 2 and the second extension frame 3 are respectively telescopically provided on the lateral sides of the main body frame 1. A transmission component is provided on the main body frame 1, a rotary tillage component is provided on the first extension frame 2, and a ploughing component is provided on the second extension frame 3.

[0032] A traction connection frame 4 is fixedly connected to the middle of the upper surface of the main body frame 1. The transmission component includes a drive motor 5 provided below the traction connection frame 4. A cylindrical transmission box 6 is provided directly below the main body frame 1. A vertical connecting square pipe 7 is fixedly connected to the center of the lower surface of the main body frame 1, and the lower end of the connecting square pipe 7 is fixedly communicated with the cylindrical transmission box 6.

[0033] A first transmission wheel 8 and a second transmission wheel 9 are provided in the cylindrical transmission box 6. The middle parts of the first transmission wheel 8 and the second transmission wheel 9 are rotationally butted. Two transmission belts 10 are externally connected to the drive motor 5, and the two transmission belts 10 are respectively sleeved on the first transmission wheel 8 and the second transmission wheel 9.

[0034] On both sides of the upper surface of the main frame 1, two strip-shaped positioning substrates 11 are fixedly connected respectively. On the upper surfaces of the first extension frame 2 and the second extension frame 3, extension positioning plates 12 opposite to the positioning substrates 11 are fixedly connected respectively.

[0035] An electric control telescopic cylinder 13 is provided between the positioning substrate 11 and the extension positioning plate 12.

[0036] On the lateral side end face of the first extension frame 2, a vertical rotary tillage lifting plate 14 is fixedly connected.

[0037] The rotary tillage assembly includes symmetrically arranged first swing plates 15 and second swing plates 16. The first swing plate 15 is rotatably installed at the lower end inside the rotary tillage lifting plate 14. At the center of the outer end face of the second swing plate 16, a first horizontal coupling shaft 17 is fixedly connected. The end of the first horizontal coupling shaft 17 passes through the side end face of the cylindrical transmission box 6 and is fixedly connected to the center of the side end face of the first transmission wheel 8.

[0038] A rotary tillage cylinder is rotatably arranged between the first swing plate 15 and the second swing plate 16. The rotary tillage cylinder is composed of a plurality of combined half cylinders 18 that are telescopically butted. On the outer peripheral wall of each combined half cylinder 18, three centrally symmetric rotary tillage blades 19 are fixedly connected respectively.

[0039] On the lateral outer wall of the first swing plate 15, a first rotating motor 20 is fixedly connected. The end of the output shaft of the first rotating motor 20 passes through the first swing plate 15 and is fixedly connected to the closed outer end face of the last combined half cylinder 18.

[0040] In the middle section of each combined half cylinder 18, a fixed circular plate 21 is fixedly connected respectively. Between adjacent two fixed circular plates 21, a telescopic connecting rod 22 is fixedly connected.

[0041] On the lateral side end face of the second extension frame 3, a vertical ploughing lifting plate 23 is fixedly connected.

[0042] The ploughing assembly includes symmetrically arranged third swing plates 24 and fourth swing plates 25. The third swing plate 24 is rotatably installed at the lower end inside the ploughing lifting plate 23. At the center of the end face of the fourth swing plate 25, a second horizontal coupling shaft 26 is fixedly connected. The end of the second horizontal coupling shaft 26 passes through the side end face of the cylindrical transmission box 6 and is fixedly connected to the center of the side end face of the second transmission wheel 9.

[0043] A ploughing cylinder is rotatably arranged between the third swing plate 24 and the fourth swing plate 25. The ploughing cylinder includes a plurality of telescopically butted split cylinders 27. In each split cylinder 27, two clamping and positioning plates 28 are fixedly connected respectively. On each clamping and positioning plate 28, a square clamping notch is opened. In each clamping notch, a limiting square column 29 is arranged respectively.

[0044] A connecting block 30 is fixedly connected between two adjacent limiting square columns 29. Circular tail plates 31 are fixedly connected to the ends of each limiting square column 29 respectively. A compression spring 32 is arranged between the circular tail plate 31 and the clamping and positioning plate 28, and the compression spring 32 is sleeved on the limiting square column 29.

[0045] Mounting sleeves 33 are fixedly connected to the outer peripheral walls of each section of the split column cylinder 27 respectively. Fixed clamping rings 34 are fixedly connected to each mounting sleeve 33 respectively. A plurality of tilling plates 35 are inserted and arranged on each fixed clamping ring 34 respectively.

[0046] A second rotating motor 36 is fixedly connected to the transverse outer wall of the third swing plate 24. The end of the output shaft of the second rotating motor 36 passes through the third swing plate 24 and is fixedly connected to the closed outer end face of the last section of the split column cylinder 27.

[0047] When the present invention is in use: First, perform installation and initial adjustment: Hinge the upper end of the traction connecting frame 4 to agricultural machinery such as a tractor; Start the transmission drive motor 5, drive the first transmission wheel 8 to rotate through the transmission belt 10, and swing the first swing plate 15 and the second swing plate 16 to the vertical state; Then, prepare for rotary tillage operation: Adjust the elongation of the electric control telescopic cylinder 13 and set the spacing between adjacent rotary tillage knives 19; Press down the main frame 1 through the hydraulic mechanism of the traction connecting frame 4 to make the rotary tillage knives 19 contact the ground; Execute rotary tillage: Start the first rotating motor 20, drive the rotary tillage column cylinder to rotate, and use the rotary tillage knives 19 to complete soil fragmentation; Switch tillage mode: Start the transmission drive motor 5 again, reset the first swing plate 15 and the second swing plate 16 to the horizontal state, and at the same time drive the third swing plate 24 and the fourth swing plate 25 to turn to the vertical state through the second transmission wheel 9; Adjust the corresponding electric control telescopic cylinder 13 to determine the spacing of the split column cylinders 27; Finally, perform tillage operation: Start the second rotating motor 36, drive the tillage column cylinder to rotate, and till the fragmented soil through the tilling plates 35.

[0048] Finally, it should be noted that: The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: They can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.

Claims

1. A multifunctional agricultural rotary tillage mechanism, characterized in that: The machine comprises a main frame (1), wherein a first extension frame (2) and a second extension frame (3) are respectively telescopically provided on two lateral sides of the main frame (1), a transmission assembly is provided on the main frame (1), a rotary tillage assembly is provided on the first extension frame (2), and a tillage assembly is provided on the second extension frame (3); The rotary tillage assembly comprises a first swing plate (15) and a second swing plate (16) which are symmetrically arranged, a rotary tillage cylinder being rotatably arranged between the first swing plate (15) and the second swing plate (16), the rotary tillage cylinder being composed of a plurality of combined half cylinders (18) which are telescopically butt-jointed, and three centrally symmetrical rotary tillage blades (19) being respectively fixedly connected to the outer peripheral wall of each of the combined half cylinders (18); The tilling assembly comprises a third swing plate (24) and a fourth swing plate (25) which are symmetrically arranged, a tilling column is rotatably arranged between the third swing plate (24) and the fourth swing plate (25), the tilling column comprises a plurality of sections of telescopically butt-jointed split columns (27), a mounting sleeve (33) is fixedly connected to the outer peripheral wall of each section of the split column (27), a fixing clamp (34) is fixedly connected to each of the mounting sleeves (33), and a plurality of tilling plates (35) are inserted into each of the fixing clamps (34).

2. A multifunctional agricultural rotary tillage mechanism according to claim 1, characterized in that: A traction connection frame (4) is fixedly connected to the middle of the upper surface of the main frame (1); the transmission assembly comprises a transmission drive motor (5) arranged below the traction connection frame (4); a cylindrical transmission box (6) is arranged directly below the main frame (1); a vertical connection square tube (7) is fixedly connected to the center of the lower surface of the main frame (1); and the lower end of the connection square tube (7) is fixedly connected to the cylindrical transmission box (6).

3. The multifunctional agricultural rotary tillage mechanism according to claim 2, characterized in that: The cylindrical transmission box (6) is provided with a first transmission wheel (8) and a second transmission wheel (9), the first transmission wheel (8) and the second transmission wheel (9) are rotatably connected at the middle part, and the transmission drive motor (5) is externally connected with two transmission belts (10), and the two transmission belts (10) are respectively sleeved on the first transmission wheel (8) and the second transmission wheel (9).

4. The multifunctional agricultural rotary tillage mechanism according to claim 1, characterized in that: Two strip-shaped positioning substrates (11) are fixedly connected to both sides of the upper surface of the main frame (1), and extended positioning plates (12) opposite to the positioning substrates (11) are fixedly connected to the upper surfaces of the first extension frame (2) and the second extension frame (3); An electrically controlled telescopic cylinder (13) is provided between the positioning base plate (11) and the extended positioning plate (12).

5. The multifunctional agricultural rotary tillage mechanism according to claim 3, characterized in that: A vertical rotary tillage hanging plate (14) is fixedly connected to the lateral side end surface of the first extension frame (2); the first swing plate (15) is rotatably mounted on the inner lower end of the rotary tillage hanging plate (14); a first horizontal connecting shaft (17) is fixedly connected at the center of the outer end surface of the second swing plate (16); the end of the first horizontal connecting shaft (17) passes through the side end surface of the cylindrical transmission box (6) and is fixedly connected to the center of the side end surface of the first transmission wheel (8).

6. The multifunctional agricultural rotary tillage mechanism according to claim 1, characterized in that: A fixed circular plate (21) is fixedly connected to the middle section of the interior of each combined half cylinder (18), and a telescopic connecting rod (22) is fixedly connected between two adjacent fixed circular plates (21).

7. The multifunctional agricultural rotary tillage mechanism according to claim 3, characterized in that: A vertical tillage hoisting plate (23) is fixedly connected to the lateral side end surface of the second extension frame (3); the third swing plate (24) is rotatably mounted on the inner lower end of the tillage hoisting plate (23); a second horizontal connecting shaft (26) is fixedly connected to the center of the end surface of the fourth swing plate (25); the end of the second horizontal connecting shaft (26) passes through the side end surface of the cylindrical transmission box (6) and is fixedly connected to the center of the side end surface of the second transmission wheel (9).

8. The multifunctional agricultural rotary tillage mechanism according to claim 1, characterized in that: Two clamping positioning plates (28) are fixedly connected in each section of the split column (27), each of the clamping positioning plates (28) is provided with a square clamping notch, and each of the clamping notches is provided with a limiting square column (29); A connecting block (30) is fixedly connected between two adjacent limiting square pillars (29), a circular tail plate (31) is fixedly connected to the end of each limiting square pillar (29), a compression spring (32) is provided between the circular tail plate (31) and the clamping positioning plate (28), and the compression spring (32) is sleeved on the limiting square pillar (29).

9. The multifunctional agricultural rotary tillage mechanism according to claim 1, characterized in that: A first rotating motor (20) is fixedly connected to the transverse outer wall of the first swing plate (15); the output shaft end of the first rotating motor (20) passes through the first swing plate (15) and is fixedly connected to the closed outer end surface of the combined half cylinder (18) at the end; A second rotary motor (36) is fixedly connected to the transverse outer wall of the third swing plate (24), and the output shaft end of the second rotary motor (36) passes through the third swing plate (24) and is fixedly connected to the closed outer end surface of the split column (27) at the end.

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