A combined plow and ditching device for rice stubble fields and its ditching method

Abstract

This invention discloses a combined ditching device for rice stubble fields, belonging to agricultural machinery for planting. It solves the problem of poor ditching quality in existing technologies. The device includes a stubble-removing component, a cutting component, a soil-turning component, and a uniform-throwing component. The stubble-removing disc in the stubble-removing component can remove rice stubble and floating grass from the ditch area. The corrugated blades in the cutting component cut the ditching area on the surface of the rice field to form trenches. The corrugated blades are staggered to prevent the soil between the trenches from being turned up. The forward plow blades in the soil-turning component can turn up the soil and guide it to the uniform-throwing component. The rotary cutting and throwing component in the uniform-throwing component crushes and disperses the soil and throws it to the rear side of the ditching device. This invention discloses the ditching method of the above-mentioned device. First, the rice stubble is removed by the stubble-removing component, the cutting component cuts to form trenches, and then the soil-turning component turns up the soil between the trenches and the uniform-throwing component discharges the soil, thereby ensuring the efficiency and effectiveness of the ditching operation.

Description

Technical Field

[0001] This invention pertains to agricultural machinery and equipment used in agricultural planting, specifically, it relates to a combined plow and ditching device for rice stubble fields. Background Technology

[0002] A ditching device is a structure installed in agricultural machinery to dig ditches in farmland, thereby facilitating planting. Its main function is to cut and turn the soil in the field, creating raised beds for planting crops. In traditional farming, ditching was done manually, involving a huge amount of labor. With advancements in modern technology, ditching devices are increasingly being developed and applied in agricultural machinery, automating ditching operations, reducing workload, and improving farming efficiency. Therefore, ditching devices are widely used in the field of agricultural technology.

[0003] Existing ditching equipment comes in various types. For example, CN203086929U discloses a plow for soil tillage and deep burial of straw. This plow includes a plow blade, a small front plow, a main plow, a depth limiting wheel, and a frame. The plow blade, small front plow, main plow, and depth limiting wheel are fixed below the frame. The plow blade is installed in the front direction of the small front plow, located below and to the right of the small front plow, and is used to cut straw and crop residues in the movement path to create neat furrow walls. The small front plow is located between the plow blade and the main plow and is used to turn over the straw (crop residues) cut by the plow blade on the soil surface and place it into the furrows turned up by the main plow in the previous tillage. The main plow is installed behind the small front plow, located below the plow blade and to the left of the small front plow. It is used to till the furrow walls, covering the previously tilled furrows with the tilled soil. In use, the plow blades cut the farmland to form furrow walls, facilitating tilling by the main plow. However, the above-mentioned plow has some inconveniences in actual use. Because the plow blades have a smooth disc structure, when the plow blades cut the furrow walls, the side walls of the furrow walls and the side walls of the plow blades are in close contact, resulting in a large contact area. This causes the plow blades to carry away the soil between the furrow walls when rotating, and the soil adheres to the plow blades, making subsequent operations inconvenient. Chinese patent CN105594346A discloses a driven corrugated disc trenching device that solves the above problems. The trenching device includes a main beam, a hydraulic drive part, and a trenching component. The trenching component is a corrugated disc. The hydraulic drive part drives the trenching component to cut the farmland and form trench walls. The trenching device cuts the farmland with a corrugated disc. Because the edge of the corrugated disc is corrugated, the corrugated edge fits against the inner wall of the trench wall during the cutting process. This greatly reduces the contact area between the cutting component and the farmland soil during the use of the trenching device, reduces the problem of soil being carried out between the trench walls, and thus greatly improves the trenching efficiency.

[0004] Although the aforementioned trenching device can achieve trenching operations by cutting farmland with corrugated discs and also reduces the problem of soil being carried out by the corrugated discs, there are still some inconveniences in actual use. Because the corrugated discs are set flush with each other, the inner wall of the trench wall produced by the cutting is in close contact with the corrugated part of the disc. The two corrugated discs have a certain clamping effect on the soil between the trench walls. Therefore, when the corrugated discs rotate, they will inevitably carry out the soil between the trench walls, thereby reducing the efficiency of trenching operations and causing some inconvenience in use. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] To address the problem that existing trenching devices often pull out soil when cutting soil, the present invention adopts the following technical solution.

[0007] A combined ditching device for paddy fields includes a frame, a cutting component mounted on the frame, and a soil-turning component also mounted on the frame. The cutting component moves with the frame to cut the ditching area on the surface of the paddy field to form trenches. The soil-turning component turns up the soil between the trenches to form field ditches, thus realizing the ditching operation. The cutting component includes a connector mounted on the frame, and a corrugated cutter head is installed at the end of the connector. The corrugated cutter head cuts the paddy field to form trenches as it moves with the frame. The corrugated cutter head includes a disc part and a corrugated part located on the circumference of the disc part. The width of the trench formed by the corrugated part of the corrugated cutter head is greater than the thickness of the disc part, and the corrugated cutter heads are staggered to avoid clamping force on the soil between the trenches.

[0008] Preferably, in the above-mentioned combined ditching equipment for paddy stubble fields, the soil turning component is assembled at the rear end of the frame in the forward direction via a connecting frame. The soil turning component includes a forward plow blade, which moves with the frame and inserts into the soil between the furrows to turn up the soil between the furrows. The forward plow blade includes a soil turning part and a guide part. The soil turning part is used to turn up the soil between the furrows and the guide part guides the soil to the outside of the furrow.

[0009] Preferably, in the above-mentioned combined ditching equipment for paddy stubble fields, the soil turning component further includes a back plow blade, which is located on the back of the forward plow blade. When the ditching equipment moves in the opposite direction, the back plow blade is used to clear the residual soil in the field ditch to the outside of the field ditch, and the back plow blade is also used to remove the inclined slope generated when the forward plow blade turns the soil.

[0010] Preferably, the above-mentioned combined ditching equipment for rice stubble fields also includes a uniform throwing component, which is used to cut and disperse the soil turned up by the soil turning component and throw it to the rear side of the ditching equipment.

[0011] The connecting frame is equipped with a support frame, and the uniform throwing component is assembled on the support frame. The uniform throwing component includes a drive motor, a rotating shaft, and a rotary cutting and throwing component. The rotating shaft is assembled on the support frame and connected to the power end of the drive motor. The operation of the drive motor can drive the rotating shaft to rotate. The rotary cutting and throwing component is circumferentially assembled on the side wall of the rotating shaft. The rotation of the rotating shaft drives the rotary cutting and throwing component to rotate, cutting and dispersing the soil turned up by the soil turning component and throwing it.

[0012] Preferably, in the above-mentioned combined ditching equipment for rice stubble fields, the rotary cutting and throwing component includes a cutting section, which rotates with the rotary cutting and throwing component to cut and spread the soil, and the end of the rotary cutting and throwing component is also provided with a bending section, which rotates with the rotary cutting and throwing component to pull the soil and throw the soil.

[0013] Preferably, the above-mentioned rice stubble plow combination ditching equipment also includes a stubble removal component, which is assembled at the end of the frame in the forward direction of the ditching equipment. The stubble removal component is used to remove rice stubble and floating grass in the paddy field from the ditch area so that the cutting component can cut the paddy field.

[0014] The stubble-removing assembly includes a fixed frame mounted on a machine frame, a gearbox and a working motor mounted on the fixed frame, multiple drive shafts installed inside the gearbox, and drive gears connected to the drive shafts. The drive gears mesh with each other in sequence. When one drive shaft rotates, it can drive the other drive shafts to rotate through the transmission of the drive gears. Two of the drive shafts extend to the outside of the gearbox and are connected to a stubble-removing disc. The power end of the working motor is mounted on one of the drive shafts, and when the working motor is working, it can drive the stubble-removing disc to rotate. The rotation of the stubble-removing disc removes rice stubble and floating grass.

[0015] In another aspect, the present invention also provides a trenching method for the above-mentioned trenching equipment, which adopts the following technical solution.

[0016] The above-mentioned ditching method of the combined plow and ditching equipment for rice stubble fields includes the following steps:

[0017] The rice stubble plow combination ditching equipment moves in the rice field due to the traction of the external power mechanism. The stubble-pulling disc in the stubble-pulling component pulls the rice stubble and floating grass in the ditch area away from the ditch area.

[0018] The corrugated cutter head in the cutting assembly moves with the trenching equipment to cut the trenching area of ​​the paddy field to form trenches;

[0019] The forward-moving plow blades in the soil-turning assembly turn over the soil between the furrows to form field ditches.

[0020] Preferably, the above-mentioned trenching method further includes a step of throwing the turned-up soil, as follows;

[0021] After the forward plow blade in the soil turning component turns up the soil, the uniform throwing component throws the soil to the rear side of the trenching equipment. Specifically;

[0022] The soil-turning part in the forward plow blade turns up the soil and guides it to the uniform throwing component through the guide part in the forward plow blade. The rotating shaft in the uniform throwing component drives the rotary cutting and throwing component to rotate, cutting and dispersing the soil and throwing it.

[0023] Preferably, in the above-mentioned trenching method, the rotary cutting and throwing component is provided with a cutting part for cutting the soil, the soil generates an initial velocity through the guidance of the guide part, and the end of the rotary cutting and throwing component is provided with a bending part to pull the soil to the rear side of the trenching device and throw the soil out by centrifugal force.

[0024] Preferably, the above-mentioned ditching method further includes an auxiliary step for cleaning up residual soil in the ditch, the specific steps of which are as follows:

[0025] The soil turning component also includes a back plow blade, which is located on the back of the forward plow blade. When the paddy field plow combination ditching device moves in the reverse direction, the back plow blade cleans the soil in the field ditch, and the forward plow blade creates an inclined slope at the end of the field ditch during the initial ditching stage. When the back plow blade moves in the reverse direction, it removes this slope.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] (1) The trenching device of the present invention is formed by cutting the soil of the paddy field through the cutting component, and then the soil turning component turns the soil between the trenches to open the paddy field. The cutting component includes a corrugated cutter disc, which includes a corrugated part and a disc part. The width of the trench formed by the corrugated part is greater than the thickness of the disc part. Therefore, the inner wall of the trench formed by the corrugated cutter disc fits with the corrugated part to avoid soil adhesion. In addition, the corrugated cutter discs are staggered, so when cutting to form the trench, the adjacent corrugated cutter discs avoid clamping the soil between the trenches, and further avoid the problem of soil turning up with the corrugated cutter discs when cutting the trench.

[0028] (2) The soil turning component in this invention includes a forward plow blade, which includes a soil turning part and a guide part. The soil turning part turns up the soil between the trenches and guides it to the uniform throwing component in this invention through the guide part. The uniform throwing component throws the turned-up soil to avoid the problem of soil accumulation. In addition, the uniform throwing component in this invention is provided with a rotating shaft and a rotary cutting and throwing component. The rotary cutting and throwing component is provided with a cutting part to cut the turned-up soil, and the end of the rotary cutting and throwing component is provided with a bending part. When the soil is turned up, it generates an initial velocity, and the soil can be guided to the rear side of the trenching equipment by the traction of the bending part. The soil is thrown by the action of centrifugal force to avoid soil accumulation.

[0029] (3) The soil turning component in this invention also includes a back plow blade, which is set on the back of the forward plow blade. When the ditching device moves in the opposite direction, the back plow blade is used to clear the soil in the field ditch. In addition, the forward plow blade generates an inclined slope in the initial ditching stage. The back plow blade can remove the slope when it moves, thereby ensuring the ditching quality of the ditching device in this invention and improving the efficiency of ditching operation.

[0030] (4) The ditching device of the present invention also includes a stubble removal component. The stubble removal component is provided with a stubble removal disc that rotates in opposite directions. The stubble removal disc is located on both sides of the corrugated cutter disc in the forward direction. The stubble removal disc removes the rice stubble and floating grass in the forward direction of the ditching device as it moves with the ditching device, thereby removing the rice stubble and floating grass from the ditch area so that the corrugated cutter disc can cut the paddy field in the ditching area to form a ditch when it moves forward. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the combined plow and ditching device for rice stubble fields in this invention.

[0032] Figure 2 for Figure 1 Side view;

[0033] Figure 3 This is a schematic diagram of the assembly of the soil turning component and the uniform throwing component in this invention;

[0034] Figure 4 for Figure 3 The right view;

[0035] Figure 5 This is a schematic diagram of the rotary cutting and throwing component in this invention;

[0036] Figure 6 This is a schematic diagram of the assembly of the cutting component and the frame in this invention;

[0037] Figure 7 for Figure 6 The front view;

[0038] Figure 8 for Figure 7 Side view;

[0039] Figure 9 This is a partial structural diagram of the cutting component in this invention;

[0040] Figure 10 This is a schematic diagram of the stubble-picking component in the present invention;

[0041] Figure 11 This is a schematic diagram of the internal structure of the stubble-picking component in this invention;

[0042] Figure 12 This is a diagram illustrating the effect of using the combined plow and ditching equipment for rice stubble fields in this invention.

[0043] The correspondence between the labels and component names in the attached figures is as follows:

[0044] 100. Frame; 200. Stubble trimming assembly; 300. Cutting assembly; 400. Soil turning assembly; 500. Smoothing assembly;

[0045] 101. Three-point suspension; 102. Connecting frame;

[0046] 201. Fixing frame; 202. Gearbox; 203. Stubble-removing disc; 204. Working motor; 205. Transmission gear; 301. Corrugated cutter disc; 302. Connecting component; 401. Forward-facing plow blade; 402. Backward-facing plow blade; 501. Drive motor; 502. Rotating shaft; 503. Rotary cutting and throwing component;

[0047] 102a, Support frame; 301a, Disc section; 301b, Corrugated section; 401a, Soil turning section; 401b, Guide section; 503a, Cutting section; 503b, Bending section. Detailed Implementation

[0048] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0049] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0050] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments. The present invention provides the following embodiments.

[0051] like Figure 1 as well as Figure 2 As shown, it is a structural schematic diagram of the combined ditching device for paddy fields in this embodiment. The ditching device in this embodiment is mounted on an external power mechanism and moves with the power mechanism, such as a tractor, in the paddy field to ditch and turn the soil.

[0052] like Figure 1 As shown, the ditching device in this embodiment includes a frame 100, one end of which is connected to a three-point suspension 101. In this embodiment, a cutting component 300 is installed on the three-point suspension 101. The cutting component 300 moves with the ditching equipment to cut the ditching area of ​​the paddy field, thereby forming a ditch. Additionally, as... Figure 1 as well as Figure 2 As shown, a stubble-removing component 200 is installed at one end of the frame 100. The stubble-removing component 200 moves with the frame 100 to remove rice stubble and floating grass in the forward direction, so that the rice stubble and floating grass are removed from the ditch area, so that the subsequent cutting component 300 can cut the soil in the area of ​​the paddy field where the rice stubble and floating grass have been removed to form a ditch.

[0053] like Figure 10 As shown, this is a structural schematic diagram of the stubble-clearing component 200 in this embodiment. The stubble-clearing component 200 is mounted on the frame 100 and moves with the frame 100 to clear away rice stubble and floating weeds. The stubble-clearing component 200 includes a fixed frame 201 mounted on the frame 100. A gearbox 202 and a working motor 204 are mounted on one side of the gearbox 202. In this embodiment, a drive shaft is installed inside the gearbox 202, and drive gears 205 are mounted on the drive shaft. The drive gears 205 mesh sequentially, and one of the drive shafts rotates and transmits power through the drive shaft. The meshing of gear 205 can drive other transmission shafts to rotate. In this embodiment, a stubble-picking disc 203 is installed on the transmission shaft. The stubble-picking disc 203 extends to the outside of the gearbox 202. The power end of the working motor 204 extends into the gearbox 202 and is connected to the transmission shaft of one of the stubble-picking discs 203. In this embodiment, the working motor 204 drives the transmission shaft to rotate, thereby driving one of the stubble-picking discs 203 to rotate. Since the transmission shaft is meshed with the transmission gear 205, the transmission shaft can drive other transmission shafts to rotate, thereby causing the other stubble-picking discs 203 to rotate as well.

[0054] It is worth noting that the two stubble-removing discs 203 in this embodiment rotate in opposite directions, and during the rotation of the stubble-removing discs 203, they remove rice stubble and floating grass from the ditch area so that the cutting component 300 behind them can cut the soil of the paddy field.

[0055] In this embodiment, as Figures 6-9 As shown, the cutting assembly 300 in this embodiment includes two corrugated cutter discs 301. In this embodiment, a connector 302 is mounted on the corrugated cutter disc 301, and the connector 302 is mounted on the three-point suspension 101. In this embodiment, the ditching device moves the connector 302 and the corrugated cutter discs 301 during its movement. The moving corrugated cutter discs 301 cut the soil of the paddy field to form trenches. It is worth noting that the stubble-removing disc 203 in this embodiment is located outside the direction of the corrugated cutter disc 301's travel path. The stubble-removing disc 203 can remove rice stubble and floating grass from the ditch area in the direction of the ditching device's movement, thereby allowing the corrugated cutter discs 301 to cut the ditch area and form trenches. Additionally, as... Figures 7-9 As shown, the corrugated cutter head 301 in this embodiment has a disc-shaped structure, and the corrugated cutter head 301 is composed of a disc portion 301a and a corrugated portion 301b. The corrugated portion 301b surrounds the circumference of the disc portion 301a and is coaxially arranged with the disc portion 301a. In this embodiment, the corrugated portion 301b and the disc portion 301a are integrally formed, so that the disc portion 301a and the corrugated portion 301b rotate during the rotation of the corrugated cutter head 301, thereby cutting the soil of the paddy field on the surface of the paddy field to form grooves.

[0056] In this embodiment, since the corrugated part 301b has a corrugated structure and the disc part 301a has a sheet-like structure, when cutting the paddy soil to form a trench, the width of the trench is greater than the thickness of the disc part 301a. This allows the inner wall of the trench to fit against the corrugated part 301b and not to contact the disc part 301a. Therefore, compared with the disc-shaped cutter head in the prior art, the contact area between the corrugated cutter head 301 and the trench is smaller, avoiding the problem of soil adhering to the cutting component 300 when cutting the soil. Thus, the corrugated cutter head 301 in this embodiment can cut the paddy soil to form a trench and also avoids soil adhering to the side wall of the corrugated cutter head 301, preventing the soil from being turned up with the cutting component 300.

[0057] In addition, such as Figure 7As shown, in this embodiment, two corrugated cutter discs 301 are provided, and the corrugated cutter discs 301 are staggered. The axes of the two corrugated cutter discs are not collinear. Therefore, during the soil cutting process, the position where one corrugated cutter disc 301 cuts the soil to form a groove is not flush with the position where the other corrugated cutter disc 301 cuts the soil to form a groove. Therefore, even if the corrugated part 301b of one corrugated cutter disc 301 is in contact with the inner wall of the groove, the two corrugated cutter discs 301 cannot form a clamping force on the soil between the grooves. Thus, the soil between the grooves is further prevented from turning over as the corrugated cutter disc 301 rotates during the cutting process.

[0058] Therefore, in this embodiment, by using the structure of the corrugated cutter head 301 in the cutting component 300 and the staggered arrangement between the corrugated cutter heads 301, the problem of soil between the grooves being turned up with the corrugated cutter head 301 is avoided during the process of the corrugated cutter head 301 cutting the soil to form grooves, so that the corrugated cutter head 301 can stably cut two grooves on the surface of the paddy field.

[0059] In this embodiment, to achieve ditching, the ditching device turns up the soil between the two trenches, thus forming a field ditch. The ditching device in this embodiment uses a soil-turning component 400 to turn up the soil between the two trenches; as... Figure 1 As shown, in this embodiment, a connecting frame 102 is connected to one end of the frame 100 relative to the stubble-removing assembly 200. A soil-turning assembly 400 is installed on the connecting frame 102. As the soil-turning assembly 400 moves with the frame 100, it turns up the soil between the two trenches cut by the cutting assembly 300, thereby realizing the trenching operation. Figure 1 as well as Figure 2 As shown, the soil turning component 400 in this embodiment includes a forward plow blade 401. The forward plow blade 401 moves with the frame 100 to turn over the soil between the two trenches. In addition, a support frame 102a is fixedly installed on the connecting frame 102 in this embodiment. A uniform throwing component 500 is assembled on the support frame 102a. After the forward plow blade 401 turns over the soil, the uniform throwing component 500 evenly throws the turned-over soil to the rear side of the frame 100, thereby avoiding the problem of soil accumulation.

[0060] like Figure 3As shown, the forward plow blade 401 in this embodiment has an L-shaped structure. The forward plow blade 401 includes a soil-turning part 401a and a guiding part 401b. The soil-turning part 401a and the guiding part 401b are integrally formed to constitute the L-shaped forward plow blade 401. In this embodiment, the end of the guiding part 401b faces the uniform throwing component 500. The soil-turning part 401a moves with the frame 100, turning up the soil between the two trenches and guiding it through the guiding part 401b to the uniform throwing component 500. The uniform throwing component 500 then uniformly throws the turned-up soil towards the rear side of the trenching equipment. In this embodiment, as... Figures 3-5 As shown, the uniform throwing component 500 in this embodiment includes a rotating shaft 502 and rotary cutting and throwing components 503 arranged on the surface of the rotating shaft 502 and arranged in a circumferential distribution. In this embodiment, the rotating shaft 502 is rotatably mounted on the support frame 102a, and the support frame 102a is also equipped with a drive motor 501. The working end of the drive motor 501 is connected to the rotating shaft 502. The drive motor 501 drives the rotating shaft 502 to rotate, and the rotation of the rotating shaft 502 drives the rotary cutting and throwing components 503 to rotate and uniformly throw the turned-up soil.

[0061] In addition, in this embodiment, as Figure 5 As shown, in this embodiment, the rotary cutting and throwing component 503 has a cutting part 503a on one side. The cutting part 503a has a blade structure. When the rotary cutting and throwing component 503 rotates with the rotating shaft 502, it cuts and disperses the soil that has been turned up. Then, it throws the dispersed soil evenly. In this embodiment, the end of the rotary cutting and throwing component 503 is also provided with a bending part 503b. The bending part 503b has a traction effect on the dispersed soil when it rotates with the rotary cutting and throwing component 503, which avoids the soil from being scattered irregularly and thus achieving the purpose of directional throwing. In this embodiment, the soil is guided by the forward plow blade 401 to generate an initial velocity that can collide with the uniform throwing component 500. After the soil is cut and dispersed by the cutting part 503a, the bending part 503b pulls the dispersed soil, so that the soil rotates with the bending part 503b to the rear side of the trenching device and is thrown out from the bending part 503b due to centrifugal force, thereby realizing the throwing of soil to the rear side of the trenching device. In this embodiment, the uniform throwing component 500 can cut and disperse the soil turned up by the soil turning component 400 and evenly throw it to the rear side of the trenching equipment, thus avoiding the problem of soil accumulation caused by the soil turning component 400.

[0062] It is worth noting that, such as Figures 1 to 3 As shown, the soil turning component 400 in this embodiment also includes a back plow blade 402, which is disposed opposite to the back of the forward plow blade 401. When the trenching device in this embodiment moves in the opposite direction following the external power mechanism, the back plow blade 402 can clean up the soil remaining in the trench, ensuring the trenching effect.

[0063] In this embodiment, at the initial stage of ditching, the forward plow blade 401 moves with the frame 100 and inserts into the soil to turn the soil. As the frame 100 moves, it drives the forward plow blade 401 into the soil, resulting in a sloping surface when the forward plow blade 401 is inserted into the soil. To ensure the quality of ditching, the sloping surface needs to be manually removed to create a suitable ditch in the paddy field. To avoid manual labor and improve the efficiency of ditching, a back plow blade 402 is provided on the opposite side of the forward plow blade 401 in this embodiment. The back plow blade 402 is used to remove the sloping surface. Specifically, when the forward plow blade 401 moves with the frame 100 and inserts into the soil to perform ditching, a sloping surface is created on the rear side of the forward plow blade 401. At this time, an external power mechanism, such as a tractor, reverses in real time, driving the forward plow blade 401 backward, while the back plow blade 402 can move towards the sloping surface to remove it, thereby avoiding the problem of a huge workload for manual removal of the slope. In this embodiment, the soil between the two trenches cut by the cutting component 300 is turned up by the forward plow blade 401 and guided to the uniform throwing component 500. The uniform throwing component 500 can chop and disperse the turned-up soil and throw it to the rear side of the trenching device. At the beginning stage of trenching, the inclined slope generated by the forward plow blade 401 is reversed by the reverse operation, which drives the frame 100 to move in the opposite direction, so that the backward plow blade 402 removes the inclined slope. This ensures the quality of trenching and reduces the problem of manual operation, thus ensuring that the trenching equipment in this embodiment has high operating efficiency and good operating quality.

[0064] In this embodiment, in order to ensure the throwing effect of the uniform throwing component 500, the distance between the end of the rotary cutting throwing component 503 and the end of the guide part 401b in the forward plow blade 401 is 5-8cm. This avoids the problem of the guide part 401b and the rotary cutting throwing component 503 being too far apart, which would prevent uniform throwing. It also avoids the problem of the guide part 401b and the rotary cutting throwing component 503 being too close, which would cause the soil to be cut too early and the soil to be dispersed without a strong initial velocity, which would prevent throwing.

[0065] This embodiment provides, on the one hand, the structure of the above-mentioned combined plow and ditching equipment for rice stubble fields, and on the other hand, it also provides a ditching method for operating the above-mentioned ditching equipment. The ditching method using the above-mentioned ditching equipment includes the following steps.

[0066] First, the trenching equipment in this embodiment is installed on the power mechanism. The power mechanism can be agricultural machinery such as a tractor, and the trenching equipment is moved by the tractor's traction.

[0067] When the ditching equipment moves, the stubble-removing disc 203 in the stubble-removing assembly 200 rotates to remove rice stubble and floating grass from the ditch area in the paddy field.

[0068] Secondly, the corrugated cutter head 301 in the cutting assembly 300 moves with the frame 100 to cut the soil on the surface of the paddy field, thereby forming two trenches. In this embodiment, the corrugated cutter head 301 uses a corrugated part 301b to fit against the inner wall of the trench, which reduces the adhesion of the soil. In addition, the staggered arrangement between the corrugated cutter heads 301 can further prevent the soil from being turned over during the cutting process.

[0069] Finally, the soil-turning component 400 in the ditching equipment moves with the frame 100, and the forward plow blade 401 in the soil-turning component 400 turns over the soil between the two furrows, thereby opening up the paddy field ditch to complete the ditching operation.

[0070] In addition, the trenching method in this embodiment also includes a step of uniformly spreading the turned-out soil. The specific steps of uniform spreading are as follows.

[0071] During the soil turning process, the soil turning unit 400's turning section 401a turns up the soil between the two trenches and guides the turned soil to the uniform throwing unit 500 via the guide section 401b. The drive motor 501 in the uniform throwing unit 500 drives the rotating shaft 502 and the rotary cutting and throwing component 503 to rotate. The cutting section 503a in the rotary cutting and throwing component 503 cuts and disperses the soil, and then the bending section 503b in the rotary cutting and throwing component 503 pulls the soil to the rear side of the trenching equipment. The effect is as follows: Figure 12 As shown, the soil is thrown out of the rotary cutting and throwing component 503 due to centrifugal force, thus avoiding the accumulation of soil that has been turned up.

[0072] In addition, to further ensure the quality of ditching operations, the ditching method in this embodiment also includes an auxiliary step to clean the ditch and ensure its quality. The auxiliary step in this embodiment is to clean the soil in the ditch by using the back plow blade 402 in the soil turning component 400. The back plow blade 402 can also remove the inclined slope generated during the initial ditching operation. Specifically, after the forward plow blade 401 turns up the soil between the two components, its back forms an inclined slope. At this time, by reversing the power mechanism, the back plow blade 402 in the soil turning component 400 removes the inclined slope at the end of the ditch, ensuring the quality of ditching operations, avoiding manual removal of the slope, reducing workload, and thus improving the operating efficiency of the ditching equipment.

[0073] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted herein.

Claims

1. A combined ditching device for paddy fields, comprising a frame (100), a cutting component (300) mounted on the frame (100), and a soil-turning component (400) mounted on the frame (100). The cutting component (300) moves with the frame (100) to cut the surface of the ditching area of ​​the paddy field to form trenches, and the soil-turning component (400) turns over the soil between the trenches to form field ditches to achieve ditching operation. The device is characterized in that... The cutting assembly (300) includes a connector (302) mounted on a frame (100). A corrugated cutter head (301) is mounted at the end of the connector. The corrugated cutter head (301) cuts the paddy field to form trenches as it moves with the frame (100). The corrugated cutter head (301) includes a disc portion (301a) and a corrugated portion (301b) located on the circumference of the disc portion (301a). The width of the trenches formed by the corrugated portion (301b) of the corrugated cutter head (301) is greater than the thickness of the disc portion (301a). The corrugated cutter heads (301) are staggered to avoid forming a clamping force on the soil between the trenches. It also includes a uniform throwing component (500), which is used to cut and disperse the soil turned up by the soil turning component (400) and throw it to the rear side of the trenching equipment; the uniform throwing component (500) includes a drive motor (501), a rotating shaft (502) and a rotary cutting and throwing component (503). The drive motor (501) drives the rotating shaft (502) to rotate. The rotary cutting and throwing component (503) is circumferentially assembled on the side wall of the rotating shaft (502). The rotation of the rotating shaft (502) drives the rotary cutting and throwing component (503) to rotate, cutting and dispersing the soil turned up by the soil turning component (400) and throwing it. The rotary cutting and throwing component (503) includes a cutting part (503a), which rotates with the rotary cutting and throwing component (503) to cut and scatter the soil. The end of the rotary cutting and throwing component (503) is also provided with a bending part (503b), which rotates with the rotary cutting and throwing component (503) to pull the soil and throw it. The soil turning assembly (400) is mounted on the rear end of the frame (100) in the forward direction via a connecting frame (102). The soil turning assembly (400) includes a forward plow blade (401), which moves with the frame (100) and inserts into the soil between the trenches to turn up the soil between the trenches. The forward plow blade (401) includes a soil turning part (401a) and a guide part (401b). The soil turning part (401a) is used to turn up the soil between the trenches and the guide part (401b) guides the soil to the outside of the trenches. The soil turning assembly (400) also includes a back plow blade (402), which is located on the back of the forward plow blade (401). When the ditching equipment moves in the opposite direction, the back plow blade (402) is used to clear the residual soil in the ditch to the outside of the ditch and also to remove the inclined slope generated when the forward plow blade (401) turns the soil.

2. The combined plow and ditching equipment for rice stubble fields according to claim 1, characterized in that, It also includes a stubble removal assembly (200), which is mounted at the end of the frame (100) in the forward direction of the ditching equipment. The stubble removal assembly (200) is used to remove rice stubble and floating grass in the paddy field from the ditch area so that the cutting assembly (300) can cut the paddy field. The stubble-removing assembly (200) includes a fixed frame (201) mounted on a frame (100). A gearbox (202) and a working motor (204) are mounted on the fixed frame (201). Multiple drive shafts are installed inside the gearbox (202), and drive gears (205) are connected to the drive shafts. The drive gears (205) mesh with each other in sequence. One drive shaft rotates and drives the other drive shafts to rotate through the drive of the drive gears (205). Two drive shafts extend to the outside of the gearbox (202) and are connected to a stubble-removing disc (203). The power end of the working motor (204) is mounted on one of the drive shafts, and the working motor (204) drives the stubble-removing disc (203) to rotate. The rotation of the stubble-removing disc (203) removes rice stubble and floating grass.

3. A ditching method for a combined plow and ditching device for rice stubble fields as described in claim 2, characterized in that, The steps include: The rice stubble plow combination ditching equipment moves in the paddy field due to the traction of the external power mechanism. The stubble-pulling disc (203) in the stubble-pulling component (200) rotates to remove the rice stubble and floating grass in the paddy field from the ditch area. The corrugated cutter head (301) in the cutting assembly (300) moves with the ditching equipment to cut the ditching area of ​​the paddy field to form a trench; The forward plow blade (401) in the soil turning assembly (400) moves to turn over the soil between the furrows to form field furrows.

4. The ditching method of the combined plow and ditching equipment for rice stubble fields according to claim 3, characterized in that, It also includes the step of throwing the turned-up soil back into the soil, as detailed below; After the forward plow blade (401) in the soil turning component (400) turns up the soil, the soil is thrown to the rear side of the trenching equipment by the uniform throwing component (500). Specifically; The soil turning part (401a) in the forward plow (401) turns up the soil and guides it to the uniform throwing component (500) through the guide part (401b) in the forward plow (401). The rotating shaft in the uniform throwing component (500) drives the rotary cutting and throwing component (503) to rotate, cutting and dispersing the soil and throwing it.

5. The ditching method of the combined plow and ditching equipment for rice stubble fields according to claim 4, characterized in that, The rotary cutting and throwing component (503) is provided with a cutting part (503a) for cutting the soil. The soil generates an initial velocity through the guidance part (401b), and the end of the rotary cutting and throwing component (503) is provided with a bending part (503b) to pull the soil to the rear side of the trenching device and throw the soil out by centrifugal force.

6. The ditching method of the combined plow and ditching equipment for rice stubble fields according to claim 5, characterized in that, It also includes auxiliary steps for cleaning up residual soil in the field ditches, the specific steps of which are as follows; The soil turning component (400) also includes a back plow blade (402), which is located behind the forward plow blade (401). When the paddy field plow combination ditching device moves in the reverse direction, the back plow blade (402) cleans the soil in the field ditch, and the forward plow blade (401) generates an inclined slope at the end of the field ditch during the initial ditching stage. When the back plow blade (402) moves in the reverse direction, it removes the slope.

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