Multi-functional agricultural rotary tiller

Abstract

The utility model relates to a multifunctional agricultural rotary tiller mechanism relates to agricultural planting and land preparation technical field, including main body frame, the lateral both sides of main body frame are retractable and are equipped with first extension frame and second extension frame, be equipped with transmission assembly on main body frame, be equipped with rotary tiller assembly on first extension frame, be equipped with ploughing assembly on second extension frame, the utility model solves the problem that the agricultural rotary tiller of traditional technology exists in the process of using, and the function integration degree is insufficient and leads to soil multiple times to crush, and the adaptive adjustment ability is deficient and key components wear seriously etc.

Description

Technical Field

[0001] This invention relates to the field of agricultural planting and land preparation technology, specifically to a multifunctional agricultural rotary tillage mechanism. Background Technology

[0002] As a core piece of equipment in modern mechanized agricultural production, the rotary tiller achieves a highly efficient four-in-one tillage mode of "soil breaking, loosening, fertilizer mixing, and stubble removal" through its unique rotating blade structure. This equipment uses dynamically optimized L-shaped or curved blades, creating continuous cutting motion within a speed range of 180-280 r / min. This not only achieves a soil fragmentation rate of over 85% in the 20-30cm tillage layer but also evenly mixes organic fertilizer or slow-release fertilizer into the soil layer, increasing efficiency by 3-5 times compared to traditional plowing. Its core value lies in: significantly enhancing soil water permeability (by 45-60%) and fertilizer retention capacity by improving the soil's three-phase structure (40% solid phase, 30% liquid phase, and 30% gas phase), creating an ideal environment for crop root development.

[0003] However, current mainstream rotary tillers have revealed significant technical limitations under complex agronomic requirements:

[0004] 1. Insufficient functional integration leading to repeated compaction. Existing equipment generally lacks modular design for functions such as deep tillage, ridging, and compaction. Completing the entire land preparation operation requires 3-5 passes through the field, which not only increases fuel consumption by 15-20%, but repeated compaction also increases the bulk density of the topsoil by 0.15-0.25 g / cm³, damaging the soil aggregate structure.

[0005] 2. Lack of adaptive adjustment capability. Traditional models use a fixed cutter shaft layout, which cannot dynamically adjust the rotary tillage depth (10-25cm) and blade spacing (15-20cm) according to soil moisture conditions (such as a water content fluctuation range of 15-25%). This results in problems such as uneven tillage depth and a 30% decrease in soil breaking rate when operating on heavy clay soils or slopes.

[0006] 3. Severe wear of key components. Field trials have shown that when operating in fields with soil hardness > 800 kPa or gravel content > 8%, the service life of 65Mn steel blades is shortened by 40-60%; when the straw coverage rate is > 0.8 kg / m², the probability of blade shaft entanglement reaches more than 70%, requiring machine shutdown for cleaning every 2 hours of operation, which seriously affects work efficiency.

[0007] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a multifunctional agricultural rotary tillage mechanism to solve problems such as insufficient functional integration leading to repeated soil compaction, lack of adaptive adjustment capabilities, and severe wear of key components in traditional agricultural rotary tillers during use.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A multifunctional agricultural rotary tillage mechanism includes a main frame, with a first extension frame and a second extension frame telescopically mounted on both sides of the main frame. The main frame is equipped with a transmission assembly, the first extension frame is equipped with a rotary tillage assembly, and the second extension frame is equipped with a tillage turning assembly.

[0011] As an optimized solution, the rotary tillage assembly includes a first swing plate and a second swing plate arranged symmetrically. A rotary tillage column is rotatably provided between the first swing plate and the second swing plate. The rotary tillage column is composed of multiple combined half-cylinders that are telescopically connected. Three centrally symmetrical rotary tillage blades are fixed to the outer peripheral wall of each combined half-cylinder.

[0012] As an optimized solution, the tillage assembly includes a symmetrically arranged third swing plate and a fourth swing plate, with a tillage column rotating between the third swing plate and the fourth swing plate. The tillage column includes multiple telescopically connected split columns, with an installation sleeve fixedly connected to the outer peripheral wall of each split column. A fixing ring is fixedly connected to each installation sleeve, and several tillage plates are inserted into each fixing ring.

[0013] As an optimized solution, a first rotating motor is fixedly connected to the transverse outer wall of the first swing plate, and 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.

[0014] As an optimized solution, a second rotating motor is fixedly connected to the transverse outer wall of the third swing plate, and the output shaft end 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 column.

[0015] As an optimized solution, the transmission assembly includes a transmission drive motor located below the traction connecting frame, a cylindrical transmission box located directly below the main frame, and a vertical connecting square tube fixedly connected to the center of the lower surface of the main frame, with the lower end of the connecting square tube fixedly connected to the cylindrical transmission box.

[0016] As an optimized solution, the cylindrical transmission box is provided with a first transmission wheel and a second transmission wheel. The first transmission wheel and the second transmission wheel are rotatably connected at the middle. The transmission drive motor is externally connected to two transmission belts, which are respectively sleeved on the first transmission wheel and the second transmission wheel.

[0017] As an optimized solution, two strip-shaped positioning base plates are fixedly attached to both sides of the upper surface of the main frame, and extension positioning plates opposite to the positioning base plates are fixedly attached to the upper surfaces of the first extension frame and the second extension frame.

[0018] As an optimized solution, an electrically controlled telescopic cylinder is provided between the positioning base plate and the extended positioning plate.

[0019] As an optimized solution, a vertical rotary tillage hoisting plate is fixedly connected to the transverse side end face of the first extension frame, the first swing plate is rotatably installed on the inner lower end of the rotary tillage hoisting plate, and 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 box and is fixedly connected to the center of the side end face of the first transmission wheel.

[0020] As an optimized solution, each combined semi-cylinder has a fixed circular plate fixedly connected to its inner middle section, and a telescopic connecting rod is fixedly connected between two adjacent fixed circular plates.

[0021] As an optimized solution, a vertical tillage hoisting plate is fixedly connected to the transverse side end face of the second extension frame, the third swing plate is rotatably installed on the inner lower end of the tillage hoisting plate, and 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 box and is fixedly connected to the center of the side end face of the second transmission wheel.

[0022] As an optimized solution, each of the segmented column cylinders is fixed with two clamping positioning plates, each clamping positioning plate is provided with a square clamping slot, and each clamping slot is provided with a limiting square column.

[0023] As an optimized solution, a connecting block is fixed between two adjacent limiting columns, and a circular tail plate is fixed to the end of each limiting column. A compression spring is provided between the circular tail plate and the clamping positioning plate, and the compression spring is sleeved on the limiting column.

[0024] As an optimized solution, a traction connecting frame is fixedly connected to the middle of the upper surface of the main frame.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] This invention integrates rotary tillage and turning components, enabling a single unit to perform both rotary tillage and turning operations simultaneously. This alternating function allows multiple soil preparation processes to be completed in a single field visit, effectively reducing the number of visits and avoiding soil structure damage caused by repeated compaction.

[0027] The transmission assembly in this invention employs a modular design to achieve power distribution and function switching. Specifically, the transmission assembly includes a drive motor and a cylindrical transmission box. The cylindrical transmission box contains first and second drive wheels that are rotatably connected. The drive motor drives the two drive wheels to rotate via double drive belts, thereby driving the first and second swing plates and the third and fourth swing plates to adjust their angles, ultimately achieving the switching between the rotary tillage and plowing components.

[0028] The rotary tillage assembly in this invention employs an innovative adaptive structural design: it consists of multiple combined semi-cylinders connected by telescopic linkages to form a rotary tillage column, with three sets of rotary tillage blades evenly distributed around the outer circumference of each combined semi-cylinder. The rotary tillage column is mounted between the first and second swing plates, and its rotation is driven by a first rotary motor to perform basic rotary tillage operations. It also features dual adjustment functions: the cutting depth of the rotary tillage blades can be changed by adjusting the angles of the first and second swing plates; and the lateral displacement of the first extension frame is controlled by an electrically controlled telescopic cylinder, enabling stepless adjustment of the column length and dynamically changing the spacing between the rotary tillage blade sets to meet different working conditions.

[0029] The tillage assembly in this invention offers dual operational advantages: during pre-operation, it effectively agitates and collects gravel and straw from the soil, preventing abnormal wear on the rotary tillers; during post-operation, it finely levels the tilled soil. The core component of the tillage assembly is a tillage column composed of telescopically connected split columns, each with multiple tillage plates on its surface. A second rotating motor drives the tillage column to rotate, turning the soil. Combined with the telescopic adjustment function of the second extension frame, the spacing between the tillage plates can be precisely controlled. This design protects the rotary tillage components while ensuring a uniform and loosened soil texture. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. 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 to scale.

[0031] Figure 1 This is a schematic cross-sectional view of the internal structure of each component in the present invention in the main view direction;

[0032] Figure 2 This is a schematic cross-sectional view of the internal structure of each component in the present invention from a top-view perspective;

[0033] Figure 3 This is a schematic cross-sectional view of the internal structure of the present invention from a side view direction;

[0034] Figure 4 This is a schematic diagram of the overall external structure of the present invention from the main viewing direction;

[0035] Figure 5 This is a schematic diagram of the external overall structure of the present invention from a top-down perspective.

[0036] In the diagram: 1-Main frame, 2-First extension frame, 3-Second extension frame, 4-Traction connection frame, 5-Drive motor, 6-Cylindrical transmission box, 7-Connecting square tube, 8-First transmission wheel, 9-Second transmission wheel, 10-Transmission belt, 11-Positioning base plate, 12-Extension positioning plate, 13-Electrically controlled 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 tiller blade, 20-First rotating motor, 21-Fixed circular plate, 22-Telescopic connecting rod, 23-Tillage lifting plate, 24-Third swing plate, 25-Fourth swing plate, 26-Second horizontal coupling shaft, 27-Split column, 28-Mounting positioning plate, 29-Limiting square column, 30-Connecting block, 31-Circular tail plate, 32-Compression spring, 33-Mounting sleeve, 34-Fixing retaining ring, 35-Tillage plate, 36-Second rotating motor. Detailed Implementation

[0037] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0038] like Figures 1 to 5 As shown, a multifunctional agricultural rotary tillage mechanism includes a main frame 1, with a first extension frame 2 and a second extension frame 3 telescopically mounted on both sides of the main frame 1. The main frame 1 is equipped with a transmission component, the first extension frame 2 is equipped with a rotary tillage component, and the second extension frame 3 is equipped with a tillage component.

[0039] A traction connecting frame 4 is fixedly connected to the middle of the upper surface of the main frame 1. The transmission assembly includes a transmission drive motor 5 located below the traction connecting frame 4. A cylindrical transmission box 6 is located directly below the main frame 1. A vertical connecting square tube 7 is fixedly connected to the center of the lower surface of the main frame 1. The lower end of the connecting square tube 7 is fixedly connected to the cylindrical transmission box 6.

[0040] The cylindrical transmission box 6 is equipped 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. The transmission drive motor 5 is externally connected to two transmission belts 10, which are respectively sleeved on the first transmission wheel 8 and the second transmission wheel 9.

[0041] Two strip-shaped positioning base plates 11 are fixedly attached to both sides of the upper surface of the main frame 1, and extension positioning plates 12 opposite to the positioning base plates 11 are fixedly attached to the upper surfaces of the first extension frame 2 and the second extension frame 3, respectively.

[0042] An electrically controlled telescopic cylinder 13 is provided between the positioning base plate 11 and the extension positioning plate 12.

[0043] A vertical rotary tillage hoisting plate 14 is fixed to the transverse side end face of the first extension frame 2.

[0044] The rotary tillage assembly includes a first swing plate 15 and a second swing plate 16 arranged symmetrically. The first swing plate 15 is rotatably mounted on the lower inner side of the rotary tillage hoisting plate 14. A first horizontal connecting shaft 17 is fixedly connected to the center of the outer end face of the second swing plate 16. The end of the first horizontal connecting 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.

[0045] A rotary tillage column is rotatably provided between the first swing plate 15 and the second swing plate 16. The rotary tillage column is composed of multiple combined half-cylinders 18 that are telescopically connected. Each combined half-cylinder 18 has three centrally symmetrical rotary tillage blades 19 fixedly attached to its outer peripheral wall.

[0046] A first rotating motor 20 is fixedly connected to the transverse outer wall of the first swing plate 15. 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.

[0047] Each combined semi-cylinder 18 has a fixed circular plate 21 fixedly connected to its middle section, and a telescopic connecting rod 22 is fixedly connected between two adjacent fixed circular plates 21.

[0048] A vertical tillage hoisting plate 23 is fixed to the transverse side end face of the second extension frame 3.

[0049] The tillage assembly includes a third swing plate 24 and a fourth swing plate 25 symmetrically arranged. The third swing plate 24 is rotatably mounted on the lower inner side of the tillage hoisting plate 23. A second horizontal connecting shaft 26 is fixedly connected to the center of the end face of the fourth swing plate 25. The end of the second horizontal connecting 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.

[0050] A tillage column is rotatably provided between the third swing plate 24 and the fourth swing plate 25. The tillage column includes multiple telescopic and interlocking split column sections 27. Two clamping positioning plates 28 are fixedly connected in each split column section 27. Each clamping positioning plate 28 has a square clamping slot, and each clamping slot has a limiting square post 29.

[0051] A connecting block 30 is fixed between two adjacent limiting square posts 29. A circular tail plate 31 is fixed to the end of each limiting square post 29. A compression spring 32 is provided between the circular tail plate 31 and the clamping positioning plate 28. The compression spring 32 is sleeved on the limiting square post 29.

[0052] Each segment of the split column 27 has an installation sleeve 33 fixedly connected to its outer peripheral wall. Each installation sleeve 33 has a fixing ring 34 fixedly connected to it. Each fixing ring 34 has several tillage plates 35 inserted into it.

[0053] 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 split column 27.

[0054] When using this invention:

[0055] First, install and make initial adjustments: Hinge the upper end of the traction connecting frame 4 to agricultural machinery such as tractors; start the transmission drive motor 5, and drive the first transmission wheel 8 to rotate through the transmission belt 10, so that the first swing plate 15 and the second swing plate 16 swing to the vertical position.

[0056] Next, prepare for rotary tillage: adjust the extension of the electric telescopic cylinder 13 and set the spacing between adjacent rotary tillage blades 19; press down the main frame 1 through the hydraulic mechanism of the traction connecting frame 4 so that the rotary tillage blades 19 contact the ground;

[0057] Rotary tillage execution: Start the first rotating motor 20 to drive the rotary tillage cylinder to rotate, and use the rotary tillage blades 19 to break up the soil;

[0058] Tillage mode switching: Restart the transmission drive motor 5 to 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 the vertical state through the second transmission wheel 9; adjust the corresponding electric telescopic cylinder 13 to determine the spacing of the split column cylinder 27.

[0059] Finally, the tillage operation is carried out: the second rotating motor 36 is started, which drives the tillage column to rotate, and the broken soil is tilled through the tillage plate 35.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to 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 specification of the present invention.

Claims

1. A multifunctional agricultural rotary tillage mechanism, characterized in that: Includes a main frame (1), with a first extension frame (2) and a second extension frame (3) telescopically mounted on the lateral sides of the main frame (1), a transmission assembly on the main frame (1), a rotary tillage assembly on the first extension frame (2), and a tillage assembly on the second extension frame (3). The rotary tillage assembly includes a first swing plate (15) and a second swing plate (16) arranged symmetrically. A rotary tillage column is rotatably provided between the first swing plate (15) and the second swing plate (16). The rotary tillage column is composed of multiple combined half cylinders (18) that are telescopically connected. Three centrally symmetrical rotary tillage blades (19) are fixed to the outer peripheral wall of each combined half cylinder (18). The tillage assembly includes a third swing plate (24) and a fourth swing plate (25) arranged symmetrically. A tillage column is rotatably provided between the third swing plate (24) and the fourth swing plate (25). The tillage column includes multiple telescopically connected split column sections (27). An installation sleeve (33) is fixedly connected to the outer peripheral wall of each split column section (27). A fixing ring (34) is fixedly connected to each installation sleeve (33). Several tillage plates (35) are inserted into each fixing ring (34). Two strip-shaped positioning base plates (11) are fixedly attached to both sides of the upper surface of the main frame (1), and extension positioning plates (12) opposite to the positioning base plates (11) are fixedly attached 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 extension positioning plate (12). Two snap-fit ​​positioning plates (28) are fixedly connected to each of the split cylindrical sections (27). Each snap-fit ​​positioning plate (28) has a square snap-fit ​​slot, and each snap-fit ​​slot has a limiting square post (29). A connecting block (30) is fixed between two adjacent limiting columns (29), and a circular tail plate (31) is fixed at the end of each limiting column (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 column (29).

2. The multifunctional agricultural rotary tillage mechanism according to claim 1, characterized in that: A traction connecting frame (4) is fixedly connected to the middle of the upper surface of the main frame (1). The transmission assembly includes a transmission drive motor (5) located below the traction connecting frame (4). A cylindrical transmission box (6) is located directly below the main frame (1). A vertical connecting square tube (7) is fixedly connected to the center of the lower surface of the main frame (1). The lower end of the connecting 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. The transmission drive motor (5) is connected to two transmission belts (10), which 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 3, characterized in that: A vertical rotary tillage hoisting plate (14) is fixedly connected to the transverse side end face of the first extension frame (2). The first swing plate (15) is rotatably installed on the inner lower end of the rotary tillage hoisting plate (14). A first horizontal connecting shaft (17) is fixedly connected to the center of the outer end face of the second swing plate (16). The end of the first horizontal connecting 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).

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

6. A multifunctional agricultural rotary tillage mechanism according to claim 3, characterized in that: A vertical tillage hoisting plate (23) is fixedly connected to the transverse side end face of the second extension frame (3). The third swing plate (24) is rotatably installed on the lower inner side of the tillage hoisting plate (23). A second horizontal connecting shaft (26) is fixedly connected to the center of the end face of the fourth swing plate (25). The end of the second horizontal connecting 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).

7. A 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 face of the last combined half cylinder (18). A second rotating motor (36) is fixedly connected to the transverse outer wall of the third swing plate (24). The output shaft end 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 split column (27) at the very end.

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