Strip tillage machine

Abstract

The utility model discloses a strip tiller belongs to agricultural machinery technical field, including frame main girder, the central part of frame main girder top is provided with three point linkage, and the outside of three point linkage is provided with adjustable support, and the central part of adjustable support is provided with chain drive baffle, and the end of chain drive baffle is connected with rotary tiller shaft sleeve, and rotary tiller shaft sleeve is installed with rotary tiller assembly, adjustable support below is provided with pitch adjusting assembly, and the end of adjustable support is connected with chain drive baffle through spring, and the main girder is installed with speed reducer assembly, and pitch adjusting assembly, adjustable support, chain drive baffle and rotary tiller assembly constitute a whole that can move along the transverse direction of frame main girder. The utility model with the help of hydraulic pitch adjusting assembly and the whole structure that can move in the transverse direction, avoid the problem that the strip tiller row spacing adjustment is complicated, and compact structure is favorable for the adaptability of promotion to complex topography such as hilly, and provides practical equipment for conservation tillage.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a strip tiller. Background Technology

[0002] Traditional farming methods, such as frequent tilling and prolonged cultivation, lead to frequent exposure of the topsoil, resulting in increasingly severe soil erosion. This excessive tillage practice reduces the content of microorganisms and organic matter in the soil.

[0003] To adapt to the needs of modern development, the introduction of new technologies and agricultural concepts is particularly urgent, necessitating in-depth exploration and popularization of soil-conserving farming methods and their effective application. Currently, conservation tillage methods are mainly divided into three types: First, the widely accepted method is no-till seeding with full or partial straw return to the field; second, partial straw return combined with loosening the soil and row sowing; and finally, full or partial straw return followed by plowing and flat sowing in rows. Implementing these technologies is of profound significance for creating a sustainable agricultural system, based on three core principles: minimizing disturbance to the topsoil, increasing soil microbial content, and cross-cropping of various crops. The advantages of conservation tillage are mainly reflected in improving soil nutrients and enhancing soil quality. Less-than-tillage strip tillage has become a key technology in conservation tillage, and the use of strip rotary tillage machinery to replace traditional farming methods is conducive to promoting positive agricultural economic development.

[0004] While my country's strip tillers have made some progress in terms of operating methods and combined tillage operations, they are generally large and not well-suited for hilly and mountainous terrain. Current strip tillers also have complex mechanical structures, making row spacing adjustment difficult and maintenance challenging. Summary of the Invention

[0005] The purpose of this invention is to provide a strip tiller that solves the problems of complex row spacing adjustment operation of traditional tillers and the large size and poor adaptability of existing strip tillers, thereby improving adaptability to complex terrains such as hills; increasing soil and straw breakage rates, ensuring tillage quality, reducing maintenance difficulty, and providing practical equipment support for the promotion of conservation tillage technology.

[0006] To achieve the above objectives, this utility model provides a strip tiller, including a main frame beam. A three-point suspension mechanism is provided at the center of the main frame beam, and adjustable supports are provided on the outer sides of each of the three-point suspension mechanisms. A chain drive baffle is provided at the center of each adjustable support. An adjustment assembly is provided below the adjustable supports. The adjustment assembly includes an upper rod for a press wheel, which is slidably connected to the main frame beam via a sliding sleeve. A hydraulic oil pump is provided on the upper rod for the press wheel, and the hydraulic oil pump is equipped with an overflow valve switch. A lower rod for the press wheel is connected below the upper rod for the press wheel, and a press wheel is installed on the lower rod for the press wheel. The adjustable supports are fixedly connected to the sliding sleeves. The adjustment assembly, the adjustable supports, and the chain drive baffle constitute a whole that can move laterally along the main frame beam.

[0007] Preferably, the three-point suspension mechanism includes an upper tripod positioned at the center above the main beam of the frame, with lower tripods on both sides of the upper tripod; a rotary tiller bushing is connected to the end of the chain drive baffle, and a rotary tiller assembly is mounted on the rotary tiller bushing; a loosening shovel is located behind the adjustable assembly; the end of the adjustable support is connected to the chain drive baffle via a spring; a reducer assembly is installed inside the three legs of the upper tripod, and the reducer assembly is mounted on the main beam of the frame.

[0008] Preferably, the reducer assembly includes a reduction gearbox base, which is fixedly connected to the main beam of the frame. A reducer is installed on top of the reduction gearbox base. The reducer is provided with an input bevel gear. The reducer outputs power to the rotary tiller assembly through a universal joint. The universal joint is arranged parallel to the main beam of the frame and passes through mounting holes provided on the adjustable support and the chain drive baffle.

[0009] Preferably, the rotary tiller assembly includes a central shaft, with inner blade holders fixedly connected to both sides of the central shaft. Several L-shaped blades are installed on the outer side of the inner blade holders, with the L-shaped blades overlapping each other. An outer blade holder is provided on the outer side of each L-shaped blade. The inner blade holders, L-shaped blades, and outer blade holders are connected and fixed by bolts.

[0010] Preferably, the adjustable support and the chain drive baffle are inclined, with the adjustable support facing upwards from the end away from the main beam of the frame; the chain drive baffle facing downwards from the end away from the main beam of the frame, forming an angle between the adjustable support and the chain drive baffle.

[0011] Preferably, the rotary tiller assembly is provided with a rotary tiller protective cover.

[0012] Preferably, the loosening shovel is fixedly connected to the chain drive baffle.

[0013] Therefore, this utility model, employing the aforementioned strip tillage machine, can solve the problems of large disturbance of the tillage layer and soil erosion in traditional tillage, as well as the large size, poor adaptability, and complex structure of existing strip tillage machines. By utilizing a hydraulic spacing adjustment component and a laterally movable overall structure, it solves the problem of complex row spacing adjustment in existing strip tillage machines, improving adaptability to complex terrains such as hills. The rotary tillage blade assembly adopts an interlaced L-shaped blade design, coupled with stable operating parameters, to improve soil and straw breakage rates, ensuring tillage quality. Simultaneously, it simplifies power transmission through universal joint parallel drive, and the rotary tillage blade assembly is easily disassembled and assembled via bolt connections. Its compact structure reduces maintenance difficulty, and the coordinated operation of the loosening shovel and rotary tillage blade assembly improves efficiency, providing practical equipment support for the promotion of conservation tillage technology.

[0014] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the strip tiller of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of an embodiment of the strip tiller of this utility model. Figure II ;

[0017] Figure 3 This is an exploded view of the rotary tiller blade assembly of an embodiment of the strip tiller of this utility model;

[0018] Figure 4 This is a prototype drawing of an embodiment of a strip tiller according to this utility model.

[0019] Figure Labels

[0020] 1. Main beam of the frame; 2. Upper tripod; 3. Lower tripod; 4. Hydraulic oil pump; 5. Upper rod of the compactor wheel; 6. Lower rod of the compactor wheel; 7. Compactor wheel; 8. Loosening shovel; 9. Universal joint; 10. Adjustable support; 11. Spring; 12. Reducer; 13. Input bevel gear; 14. Gearbox seat; 15. Chain drive baffle; 16. Rotary tiller blade bushing; 17. Rotary tiller blade assembly; 1701. Central shaft; 1702. Inner blade holder; 1703. L-shaped blade; 1704. Outer blade holder; 1705. Bolt; 18. Rotary tiller blade protective cover. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Example 1

[0024] This utility model provides a strip tiller, the structure of which is as follows: Figure 1-2 As shown, the machine includes a main frame beam 1, which serves as the primary load-bearing point for the entire machine and connects various mechanisms. A three-point suspension mechanism is located at the center of the upper part of the main frame beam 1. This mechanism includes an upper tripod 2, with lower tripods 3 on either side of the upper tripod 2. Adjustable supports 10 are located on the outer sides of each lower tripod 3. A chain drive baffle 15 is located in the center of each adjustable support 10. A rotary tiller blade sleeve 16 is connected to the end of the chain drive baffle 15. A rotary tiller blade assembly 17 is mounted on the rotary tiller blade sleeve 16, and a rotary tiller blade protective cover 18 is installed on the outside of the rotary tiller blade assembly 17.

[0025] Rotary tillage blade assembly 17 Figure 3 As shown, the device includes a central shaft 1701, with inner blade holders 1702 fixedly connected to both sides of the central shaft 1701. Several L-shaped blades 1703 are mounted on the outer sides of the inner blade holders 1702. The L-shaped blades create a flat cutting surface during rotary tillage, resulting in better performance and more effective crushing of straw and stubble. In this embodiment, there are four L-shaped blades 1703, which are staggered and overlapped. An outer blade holder 1704 is provided on the outer side of each L-shaped blade 1703. The inner blade holders 1702, L-shaped blades 1703, and outer blade holder 1704 are connected and fixed by bolts 1705.

[0026] An adjustment assembly is located below the adjustable support 10. This assembly includes an upper roller rod 5, which is slidably connected to the main beam 1 of the frame via a sliding sleeve. A hydraulic pump 4 is installed on the upper roller rod 5, and the hydraulic pump 4 is equipped with an overflow valve switch. A lower roller rod 6 is connected below the upper roller rod 5, and the upper roller rod 5 and the lower roller rod 6 are movably connected. The position of the roller 7 during operation can be adjusted by adjusting the overlapping holes. The lower roller rod 6 is fitted with the roller 7. The adjustable support 10 is fixedly connected to the sliding sleeve. The adjustment assembly, the adjustable support 10, the chain drive baffle 15, and the rotary tiller assembly 17 constitute a whole capable of moving laterally along the main beam 1 of the frame. The hydraulic pump 4, the overflow valve switch, and the sliding sleeve form the adjustment mechanism. The overflow valve switch controls the horizontal movement of the sliding sleeve on the main beam 1 of the frame, thereby adjusting the row spacing during tillage. The adjustable distance component limits the working depth of the machine. By adjusting the press wheel 7, the soil-moving depth of the machine can be kept below 10cm, thus avoiding excessively deep strip tillage.

[0027] A loosening shovel 8 is located behind the adjustable bracket, and is fixedly connected to the chain drive baffle 15, enabling shallow loosening before strip tillage. The end of the adjustable support 10 is connected to the chain drive baffle 15 via a spring 11. A reducer assembly is installed inside the tripod 2, and is mounted on the main beam 1 of the frame. The reducer assembly is connected to the tractor's power take-off shaft, providing power to the entire strip tiller. The reducer assembly includes a gearbox seat 14, which is fixedly connected to the main beam 1 of the frame. A reducer 12 is mounted above the gearbox seat 14, and the reducer 12 has an input bevel gear 13. The reducer 12 outputs power to the rotary tiller assembly 17 via a universal joint 9. The universal joint 9 is parallel to the main beam 1 of the frame and passes through mounting holes on the adjustable support 10 and the chain drive baffle 15. The universal joint 9 transmits the tractor's power to the rotary tiller assembly 17 via a chain.

[0028] The adjustable support 10 and the chain drive baffle 15 are inclined, with the end of the adjustable support 10 away from the main beam 1 of the frame facing upward; the end of the chain drive baffle 15 away from the main beam 1 of the frame facing downward, forming an angle between the adjustable support 10 and the chain drive baffle 15.

[0029] In this embodiment, the strip tiller is connected to the tractor via the upper tripod 2 and the lower tripod 3. The soil-moving depth can be adjusted by adjusting the press wheel 7, and the row spacing during tillage can be adjusted by the hydraulic pump 4. The tractor drives the strip tiller forward to perform soil-moving operations.

[0030] To verify the working effect of the strip tiller described in this embodiment, static analysis and simulation tests were conducted on the strip tiller to determine the optimal working parameters, as shown in Table 1. A prototype was then fabricated for field trials. Figure 4 As shown.

[0031] Table 1 Optimal parameters for experimental indicators

[0032] Cutter spindle speed forward speed Rotary tillage depth Soil breakage rate Soil bulk density Straw breakage rate 285r / min 15.525m / s 10.0cm 97.86％ <![CDATA[0.834g / cm 3 ]]> 97.225％

[0033] In field trials, the stability of tillage depth and width after cultivation was measured. The stability of tillage depth was 97.85%, and the range of tillage width was 0.8 cm, which met national standards. The average soil breakage rate was 87.37%, the average straw breakage rate was 94.9%, and the average bulk density was 1.07 g / cm³. 3 It can meet the needs of mechanized operations and verify the stability of the strip tillage machine operation.

[0034] Therefore, this utility model, employing the aforementioned strip tillage machine, can solve the problems of large disturbance of the tillage layer and soil erosion in traditional tillage, as well as the large size, poor adaptability, and complex structure of existing strip tillage machines. By utilizing a hydraulic spacing adjustment component and a laterally movable overall structure, it solves the problem of complex row spacing adjustment in existing strip tillage machines, improving adaptability to complex terrains such as hills. The rotary tillage blade assembly adopts a staggered L-shaped blade design, coupled with stable operating parameters, to improve soil and straw breakage rates, ensuring tillage quality. Simultaneously, it simplifies power transmission through universal joint parallel drive, and the rotary tillage blade assembly is easily disassembled and assembled via bolt connections. Its compact structure reduces maintenance difficulty, and the coordinated operation of the loosening shovel and rotary tillage blade assembly improves efficiency, providing practical equipment support for the promotion of conservation tillage technology.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model.

[0036] Rather than limiting it, although the present invention has been described in detail with reference to preferred embodiments.

[0037] It should be understood by those skilled in the art that they can still make relevant adjustments to this utility model.

[0038] The technical solution is modified or equivalently replaced, but these modifications or equivalent replacements cannot make the solution work.

[0039] The modified technical solution deviates from the spirit and scope of this utility model.

Claims

1. A strip tiller, characterized in that: The system includes a main frame beam with a three-point suspension mechanism at its center. Adjustable supports are located on the outer sides of each of the three suspension mechanisms. A chain drive baffle is located at the center of each adjustable support. An adjustment assembly is located below each adjustable support. The adjustment assembly includes an upper rod for a press wheel, which is slidably connected to the main frame beam via a sliding sleeve. A hydraulic pump with an overflow valve is mounted on the upper rod. A lower rod for a press wheel is connected below the upper rod, and a press wheel is mounted on the lower rod. The adjustable supports are fixedly connected to the sliding sleeve. The adjustment assembly, adjustable supports, and chain drive baffle constitute a single unit capable of lateral movement along the main frame beam.

2. The strip tiller according to claim 1, characterized in that: The three-point suspension mechanism includes an upper tripod positioned at the center above the main beam of the machine frame, with lower tripods on both sides of the upper tripod; a rotary tiller bushing is connected to the end of the chain drive baffle, and a rotary tiller assembly is mounted on the rotary tiller bushing; a loosening shovel is located behind the adjustable assembly; the end of the adjustable support is connected to the chain drive baffle via a spring; a reducer assembly is installed inside the three legs of the upper tripod, and the reducer assembly is mounted on the main beam of the machine frame.

3. A strip tiller according to claim 2, characterized in that: The reducer assembly includes a reduction gearbox base, which is fixedly connected to the main beam of the frame. A reducer is installed on top of the reduction gearbox base. The reducer is equipped with an input bevel gear. The reducer outputs power to the rotary tiller assembly through a universal joint. The universal joint is arranged parallel to the main beam of the frame and passes through mounting holes provided on the adjustable support and the chain drive baffle.

4. A strip tiller according to claim 2, characterized in that: The rotary tiller assembly includes a central shaft, with inner blade holders fixedly connected to both sides of the central shaft. Several L-shaped blades are installed on the outer side of the inner blade holders, with the L-shaped blades overlapping each other. An outer blade holder is provided on the outer side of the L-shaped blades. The inner blade holders, L-shaped blades, and outer blade holders are connected and fixed by bolts.

5. A strip tiller according to claim 1, characterized in that: The adjustable support and the chain drive baffle are inclined, with the adjustable support facing upwards from the end away from the main beam of the frame; the chain drive baffle faces downwards from the end away from the main beam of the frame, forming an angle between the adjustable support and the chain drive baffle.

6. A strip tiller according to claim 2, characterized in that: The rotary tiller assembly is equipped with a rotary tiller protective cover.

7. A strip tiller according to claim 2, characterized in that: The loosening shovel is fixedly connected to the chain drive baffle.

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