Multi-stage deep scarification device based on additional rack system of rotary cultivator

Abstract

The invention relates to a multi-stage deep scarification device based on a rotary cultivator additional rack system, and belongs to the technical field of land deep scarification equipment.The multi-stage deep scarification device specifically comprises a rack and a rotary cultivator installed on the rack, and a first stubble-cutting straw-cleaning deep scarification cutter is installed on the front portion of the rotary cultivator; the rear part of the rotary cultivator is provided with a second stubble cutting and straw cleaning subsoiling cutter and a third stubble cutting and straw cleaning subsoiling cutter, and the first stubble cutting and straw cleaning subsoiling cutter, the second stubble cutting and straw cleaning subsoiling cutter and the third stubble cutting and straw cleaning subsoiling cutter are respectively arranged on the rack; the upper portions of the first stubble-cutting and straw-cleaning subsoiling cutter, the second stubble-cutting and straw-cleaning subsoiling cutter and the third stubble-cutting and straw-cleaning subsoiling cutter are fixedly connected with the rack through pull rods, a follow-up frame is hinged to the tail of the rack, and a pressing roller is installed on the follow-up frame. The subsoiling machine is simple in structure and reasonable in design, the subsoiling efficiency can be greatly improved, and grading subsoiling is achieved.

Description

Technical Field

[0001] The invention relates to a multi-stage deep tillage device based on an additional frame system of a rotary tiller, belonging to the technical field of land deep tillage equipment. Background Art

[0002] Combined deep tillage and land preparation operations can reduce obstacles at the bottom of the plow, deepen the plow layer, reduce soil bulk density, and increase soil permeability, thereby enhancing the soil's ability to retain water and resist drought and floods, which is beneficial to crop growth and development and increases yields. Therefore, it is highly valued by the government and experts.

[0003] Deep tillage operation has high requirements on power. Existing deep tillage operation usually uses high-horsepower tractors for operation. However, small and medium-horsepower tractors are not widely used for deep tillage or deep tillage combined operation due to insufficient power. The existing connection and fixing method between the deep tiller and the deep tiller frame is that the upper end of the deep tiller is directly fixed to the frame through the cutter holder and bolts. When deep tillage is performed, the deep tiller exerts a strong twisting torque on the cutter holder and the frame, and exerts a huge tearing force on the frame weld, which can easily cause serious frame twisting and structural damage, increase maintenance costs, and affect operation efficiency.

[0004] At the same time, the deep plowing hooks on the existing combined deep plowing machines mainly adopt a simple single structure. When encountering stubble in the soil and straw on the ground during deep plowing operations, they cannot be separated in time, which easily causes larger stubble and straw to entangle the deep plowing blade, increasing the width and depth of the deep plowing ditch, and also increasing power consumption, affecting the deep plowing quality and work efficiency, and increasing operating costs. Summary of the invention

[0005] In order to solve the technical problems existing in the prior art, the present invention provides a multi-stage deep tillage device based on a rotary tiller attached frame system which has a simple structure, reasonable design, avoids frame torsional moment damage and weld tearing, and is capable of graded deep tillage.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is a multi-stage deep loosening device based on a rotary tiller additional frame system, including a frame and a rotary tiller installed on the frame, the front of the rotary tiller is equipped with a first stubble breaking and straw cleaning deep loosening knife, the rear of the rotary tiller is equipped with a second stubble breaking and straw cleaning deep loosening knife and a third stubble breaking and straw cleaning deep loosening knife, the first stubble breaking and straw cleaning deep loosening knife, the second stubble breaking and straw cleaning deep loosening knife and the third stubble breaking and straw cleaning deep loosening knife are respectively installed on the frame, and the upper parts of the first stubble breaking and straw cleaning deep loosening knife, the second stubble breaking and straw cleaning deep loosening knife and the third stubble breaking and straw cleaning deep loosening knife are also connected and fixed to the frame by a pull rod, the tail of the frame is also hingedly connected to a follower frame, and a suppression roller is installed on the follower frame.

[0007] Preferably, the first stubble breaking and straw clearing deep loosening knife, the second stubble breaking and straw clearing deep loosening knife and the third stubble breaking and straw clearing deep loosening knife are arranged in a straight line, and the deep loosening operation depths of the first stubble breaking and straw clearing deep loosening knife, the second stubble breaking and straw clearing deep loosening knife and the third stubble breaking and straw clearing deep loosening knife increase sequentially.

[0008] Preferably, the deep tilling depth of the first stubble breaking and straw clearing deep tilling knife is 3-5 cm, the deep tilling depth of the second stubble breaking and straw clearing deep tilling knife is 12-17 cm, and the furrowing depth of the third stubble breaking and straw clearing deep tilling knife is 20-35 cm.

[0009] Preferably, the first stubble breaking and straw clearing deep loosening knife, the second stubble breaking and straw clearing deep loosening knife and the third stubble breaking and straw clearing deep loosening knife have the same structure, and all comprise a blade body, a deep loosening knife head and a root stubble breaking and straw clearing serrated knife, a connecting hole is provided on the blade body, an arc-shaped connecting rod is provided at the bottom of the blade body, the deep loosening knife head is installed at the end of the arc-shaped connecting rod, a root stubble breaking and straw clearing serrated knife is installed in the arc of the arc-shaped connecting rod, and both ends of the root stubble breaking and straw clearing serrated knife are respectively fixed on the arc-shaped connecting rod and the blade body.

[0010] Preferably, the blade body includes two connecting rods and a fixing plate installed between the connecting rods, a plurality of connecting holes are arranged on the fixing plate, one of the connecting rods is extended to form an arc-shaped connecting rod, and a reinforcing rib is arranged between the arc-shaped connecting rod and the end of the other connecting rod.

[0011] Preferably, the stubble breaking and straw clearing serrated knife comprises a knife bar and a plurality of serrated cutting blades arranged on the knife bar.

[0012] Compared with the prior art, the present invention has the following technical effects: the present invention sequentially installs multiple stubble breaking and straw clearing deep loosening knives on a frame in the same forward direction, and the deep loosening depth of the stubble breaking and straw clearing deep loosening knives is gradually deepened, thereby realizing progressive deep loosening; at the same time, the stubble breaking and straw clearing deep loosening knives are adjustable, and the upper end of the knife body is equipped with a pull rod structure, which can ensure that the stubble breaking and straw clearing deep loosening knives and the frame are subjected to more uniform and reasonable force, eliminating the problems of direct twisting and deformation of the frame structure and tearing and damage to the welds caused by conventional deep loosening knives. In addition, the first stubble breaking and straw clearing deep loosening knife is installed at the front end of the rotary tiller, which can quickly remove the shallow stubble and surface straw before the rotary tillage operation to both sides of the blade, and then the second stubble breaking and straw clearing deep loosening knife and the third stubble breaking and straw clearing deep loosening knife are installed at the rear of the rotary tiller. The second stubble breaking and straw clearing deep loosening knife can remove the uncleared stubble and straw remaining in the soil and on the surface of the rotary tillage layer and under the rotary tillage layer. The third stubble breaking and straw clearing deep loosening knife can further deep loosen to 20-35cm or deeper on the basis of the operation of the second stubble breaking and straw clearing knife, and clean the roots in turn. The operating method of breaking stubble and straw and gradually increasing the operating depth has greatly reduced the entanglement of roots and straw in the soil and improved the efficiency and quality of deep tillage. At the same time, the gradual breaking of stubble and straw and deep tillage reduce the requirements of high structural strength of deep tillers for conventional one-time deep tillage, and reduce the manufacturing cost and weight of deep tillers. The new fulcrum-type fixation of the knife seat and the pull rod connection at the upper end of the knife body eliminate the damaging effects of the huge torsional torque of conventional deep tillers on the frame during soil deep tillage operations, reduce maintenance costs, save costs, and improve operation quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the structure of the stubble breaking, straw clearing and deep loosening knife in the present invention. DETAILED DESCRIPTION

[0015] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] like Figure 1As shown, a multi-stage deep loosening device based on a rotary tiller additional frame system includes a frame 1 and a rotary tiller 2 installed on the frame, a first stubble breaking and straw cleaning deep loosening knife 3 is installed at the front of the rotary tiller 2, a second stubble breaking and straw cleaning deep loosening knife 4 and a third stubble breaking and straw cleaning deep loosening knife 5 are installed at the rear of the rotary tiller 2, the first stubble breaking and straw cleaning deep loosening knife 3, the second stubble breaking and straw cleaning deep loosening knife 4 and the third stubble breaking and straw cleaning deep loosening knife 5 are respectively installed on the frame 1, and the upper parts of the first stubble breaking and straw cleaning deep loosening knife 3, the second stubble breaking and straw cleaning deep loosening knife 4 and the third stubble breaking and straw cleaning deep loosening knife 5 are also connected and fixed to the frame 1 by a pull rod 6, and the tail of the frame 1 is also hingedly connected to a follower frame 7, and a pressing roller 8 is installed on the follower frame 7.

[0017] The present invention adopts three-stage deep loosening, and the three-stage deep loosening knife is used in conjunction with a rotary tiller 2. A first stubble-breaking and straw-clearing deep loosening knife 3 is respectively installed at the front end of the rotary tiller, and a second stubble-breaking and straw-clearing deep loosening knife 4 and a third stubble-breaking and straw-clearing deep loosening knife 5 are installed at the rear of the rotary tiller 2. The first stubble-breaking and straw-clearing deep loosening knife 3, the second stubble-breaking and straw-clearing deep loosening knife 4 and the third stubble-breaking and straw-clearing deep loosening knife 5 are arranged in a straight line, and the deep loosening operation depths of the first stubble-breaking and straw-clearing deep loosening knife 3, the second stubble-breaking and straw-clearing deep loosening knife 4 and the third stubble-breaking and straw-clearing deep loosening knife 5 are increased in sequence. The blade bolts of the first stubble-breaking and straw-clearing deep loosening knife 3, the second stubble-breaking and straw-clearing deep loosening knife 4 and the third stubble-breaking and straw-clearing deep loosening knife 5 are installed on the blade seat of the frame, the deep loosening depth of the first stubble-breaking and straw-clearing deep loosening knife 3 is 3-5cm, the deep loosening depth of the second stubble-breaking and straw-clearing deep loosening knife 4 is 12-17cm, and the furrowing depth of the third stubble-breaking and straw-clearing deep loosening knife 5 is 20-35cm. The first stubble-breaking and straw-clearing deep-loosening knife 3 is installed at the front end of the rotary tiller 2 to quickly remove the shallow stubble and the surface straw, and then the rotary tiller 2 is used for rotary tillage. The second stubble-breaking and straw-clearing deep-loosening knife 4 and the third stubble-breaking and straw-clearing deep-loosening knife 5 are installed at the rear of the rotary tiller. The second stubble-breaking and straw-clearing deep-loosening knife 4 can remove the stubble and straw under the rotary tillage layer, and the third stubble-breaking and straw-clearing deep-loosening knife 5 can further deep-loosen to 20-35 cm or more on the basis of the operation of the second stubble-breaking and straw-clearing deep-loosening knife, and the deep loosening is more thorough. After the deep loosening is completed, it is suppressed by the suppression roller 8.

[0018] like Figure 2As shown, the first stubble-breaking and straw-clearing deep loosening knife 3, the second stubble-breaking and straw-clearing deep loosening knife 4 and the third stubble-breaking and straw-clearing deep loosening knife 5 have the same structure, and all include a blade body 9, a deep loosening knife head 10 and a root stubble-breaking and straw-clearing sawtooth knife 11. A connecting hole 12 is provided on the blade body 9, and an arc-shaped connecting rod 13 is provided at the bottom of the blade body 9. The deep loosening knife head 10 is installed at the end of the arc-shaped connecting rod 13. The root stubble-breaking and straw-clearing sawtooth knife 11 is installed in the arc of the arc-shaped connecting rod 13. The two ends of the root stubble-breaking and straw-clearing sawtooth knife 11 are respectively fixed on the arc-shaped connecting rod and the blade body 13. The stubble-breaking and straw-clearing deep loosening knife adopts a blade body 9, a deep loosening knife head 10 and a root stubble-breaking and straw-clearing sawtooth knife 11. The deep loosening knife head 10 can perform deep loosening treatment on the soil, and the root stubble-breaking and straw-clearing sawtooth knife 11 can quickly remove shallow root stubble and surface straw, thereby improving the quality and efficiency of deep loosening operation.

[0019] The blade 9 includes two connecting rods 14 and a fixing plate 15 installed between the connecting rods, and a plurality of connecting holes 12 are arranged on the fixing plate 15, wherein one of the connecting rods is extended to form an arc-shaped connecting rod 13, and a reinforcing rib 16 is arranged between the arc-shaped connecting rod 13 and the end of the other connecting rod. The blade body is supported by double-threaded steel bars, and is welded and fixed by installing a fixing plate between the double-threaded steel bars, so the structure is simple and the strength is high. The stubble-breaking and straw-clearing serrated knife 11 includes a knife bar 17 and a plurality of serrated cutting blades 18 arranged on the knife bar, and the knife bar 17 can be reinforced by the arc-shaped connecting rod 13, and the stubble in the soil and the straw on the surface or in the soil can be quickly cut and removed by setting a plurality of serrated cutting blades 18.

[0020] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A multi-stage deep tilling device based on a rotary tiller with a frame system, comprising a frame and a rotary tiller mounted on the frame, characterized in that: A first stubble breaking and straw clearing deep loosening knife is installed at the front of the rotary tiller, and a second stubble breaking and straw clearing deep loosening knife and a third stubble breaking and straw clearing deep loosening knife are installed at the rear of the rotary tiller. The first stubble breaking and straw clearing deep loosening knife, the second stubble breaking and straw clearing deep loosening knife and the third stubble breaking and straw clearing deep loosening knife are respectively installed on a frame, and the upper parts of the first stubble breaking and straw clearing deep loosening knife, the second stubble breaking and straw clearing deep loosening knife and the third stubble breaking and straw clearing deep loosening knife are also connected and fixed to the frame by a pull rod, and the tail of the frame is also hingedly connected to a follower frame, and a suppression roller is installed on the follower frame.

2. The multi-stage deep tillage device based on the rotary tiller attached frame system according to claim 1 is characterized in that: The first stubble breaking and straw clearing deep loosening knife, the second stubble breaking and straw clearing deep loosening knife and the third stubble breaking and straw clearing deep loosening knife are arranged in a straight line, and the deep loosening operation depths of the first stubble breaking and straw clearing deep loosening knife, the second stubble breaking and straw clearing deep loosening knife and the third stubble breaking and straw clearing deep loosening knife increase sequentially.

3. The multi-stage deep tillage device based on the rotary tiller attached frame system according to claim 2 is characterized in that: The deep tilling depth of the first stubble breaking and straw clearing deep tilling knife is 3-5 cm, the deep tilling depth of the second stubble breaking and straw clearing deep tilling knife is 12-17 cm, and the furrowing depth of the third stubble breaking and straw clearing deep tilling knife is 20-35 cm.

4. The multi-stage deep tillage device based on the rotary tiller additional frame system according to any one of claims 1 to 3, characterized in that: The first stubble breaking and straw clearing deep loosening knife, the second stubble breaking and straw clearing deep loosening knife and the third stubble breaking and straw clearing deep loosening knife have the same structure, and all include a blade body, a deep loosening knife head and a root stubble breaking and straw clearing serrated knife. A connecting hole is provided on the blade body, and an arc-shaped connecting rod is provided at the bottom of the blade body. The deep loosening knife head is installed at the end of the arc-shaped connecting rod, and the root stubble breaking and straw clearing serrated knife is installed in the arc of the arc-shaped connecting rod. The two ends of the root stubble breaking and straw clearing serrated knife are respectively fixed on the arc-shaped connecting rod and the blade body.

5. The multi-stage deep tillage device based on the rotary tiller attached frame system according to claim 4 is characterized in that: The blade body includes two connecting rods and a fixing plate installed between the connecting rods, and a plurality of connecting holes are arranged on the fixing plate. One of the connecting rods is extended to form an arc-shaped connecting rod, and a reinforcing rib is arranged between the arc-shaped connecting rod and the end of the other connecting rod.

6. The multi-stage deep tillage device based on the rotary tiller attached frame system according to claim 4 is characterized in that: The stubble-breaking and straw-clearing serrated knife comprises a knife bar and a plurality of serrated cutting blades arranged on the knife bar.

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