Ditching machine for soybean planting

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a ditching machine for soybean planting. The device comprises a walking tractor head, a furrow plough, a furrow cutter and a dumping plough, soil compaction mechanisms are rotationally installed on the two sides of the end, away from the furrow cutter, of the dumping plough, and each soil compaction mechanism comprises a compaction assembly and a ventilation assembly; according to the device, through the synergistic effect of the compaction assembly and the ventilation assembly, balance of soil compaction and ventilation is achieved, the compaction assembly can effectively compact the ditch wall, prevent soil from loosening and slipping and ensure the stability of the gully, and the ventilation assembly is provided with a plurality of ventilation holes in the compaction process through the design of ventilation rods and barbs, so that the soil can be effectively compacted, and the ventilation effect is improved. The soil is compacted and ventilated, so that the air permeability of the soil is ensured, the respiration and healthy growth of soybean root systems are facilitated, and the compaction and air permeability coexisting collaborative design not only improves the environmental quality of the soil, but also provides good conditions for the growth of soybeans.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and particularly relates to a ditch opener for soybean planting. Background Art

[0002] In the traditional soybean planting process, the ditch opening operation is a crucial link, which directly affects the sowing quality and subsequent growth of soybeans. However, the existing ditch opening equipment has the following deficiencies when facing soils with different hardness, especially when encountering hard soils or lands containing stones: 1. When the ditch opening cutter rotates at high speed to break the soil, due to the reaction force of the impact, it will cause the handrail position of the walking tractor head of the operating equipment to bounce, so that the operator needs to continuously apply downward pressure to maintain the ditch opening depth. This not only increases the labor intensity of the operator, but also is difficult to ensure the stability of the ditch opening quality; 2. After the soil is broken, some of the soil will fall into the ditch and needs to be manually cleaned later, which increases the operation process and cost; 3. When the traditional ditch opening equipment compacts the ditch wall, it is often easy to over-compact, resulting in poor soil air permeability and affecting the respiration and growth and development of soybean roots. Summary of the Invention

[0003] Aiming at the problems existing in the prior art, the present invention provides a ditch opener for soybean planting. Through the synergistic effect of the compaction component and the air permeability component, a perfect balance between soil compaction and air permeability is achieved. The compaction component can effectively compact the ditch wall, prevent the soil from loosening and sliding, and ensure the stability of the gully. The air permeability component, through the design of air permeability rods and barbs, forms multiple air holes during the compaction process, ensuring the air permeability of the soil, which is beneficial to the respiration and healthy growth of soybean roots. This synergistic design with both compaction and air permeability not only improves the environmental quality of the soil, but also provides good conditions for the growth of soybeans, further enhancing the practical value of the ditch opener.

[0004] To achieve the above object, the present invention provides the following technical solutions: A ditch opener for soybean planting, including a walking tractor head. Among them, it further includes a ditch plow connected to the tail of the walking tractor head in sequence for initially breaking the soil, a ditch knife for crushing the clumped soil after the ditch plow breaks the soil, and a soil discharging plow for pushing the crushed soil to both sides of the ditch. Soil compaction mechanisms are rotatably installed on both sides of one end of the soil discharging plow away from the ditch knife. The soil compaction mechanism includes compaction components arranged on both sides of one end of the ditch knife and air permeable components arranged on the compaction components; a protective cover is fixedly installed at the tail of the walking tractor head, the ditch knife and the soil discharging plow are located below the protective cover, and a fixed rod is arranged on the protective cover; the compaction components include elastic link members movably inserted into the bottom end of the fixed rod and compaction members rotatably installed at both ends of the tail of the soil discharging plow. One side of the compaction member is rotatably connected to the elastic link member through a ball head structure.

[0005] As an improvement of the present invention, a plugging cavity is opened at the bottom end of the fixed rod, the elastic link member is inserted into the plugging cavity, the elastic link member includes a compaction spring arranged in the plugging cavity, a plugging rod movably inserted into the plugging cavity, and a connecting rod connected to the circumferential side wall of the plugging rod through a ball head structure.

[0006] As a further improvement of the present invention, two groups of connecting rods are provided, and ball head structures are arranged at both ends of the two groups of connecting rods; the two groups of connecting rods are symmetrically arranged with respect to the axis of the plugging rod.

[0007] As a further improvement of the present invention, the compaction member includes a side plate rotatably installed at the tail of the soil discharging plow, a universal joint seat fixedly installed on one side of the side plate, and a compaction roller rotatably installed on the universal joint seat.

[0008] As a further improvement of the present invention, the air permeable component includes air permeable rods arranged on the circumferential side wall of the compaction roller and barbs arranged on the circumferential side wall of the air permeable rods.

[0009] As a further improvement of the present invention, a plurality of plugging holes and accommodating cavities are opened on the circumferential side wall of the compaction roller, and the accommodating cavity is communicated with the plugging hole; the air permeable rod is inserted into the plugging hole in a matching manner, and one end of the air permeable rod penetrates through the plugging hole and extends into the accommodating cavity; the diameter of the accommodating cavity is larger than the diameter of the plugging hole, and a retaining ring integrally formed with the end of the air permeable rod is movably arranged in the accommodating cavity.

[0010] As a further improvement of the present invention, a return spring is arranged in the accommodating cavity, the return spring is sleeved on the circumferential outside of the air permeable rod, one end of the return spring abuts against the retaining ring, and the other end of the return spring abuts against the accommodating cavity and is connected to one end of the inner wall of the plugging hole.

[0011] As a further improvement of the present invention, a driving block is arranged in the insertion hole, and a spiral driving groove is formed at one end of the side wall of the air-permeable rod away from the circumference of the barb, and the spiral driving groove is slidably matched with the driving block.

[0012] The present invention has the following advantages: 1. A soil compaction mechanism is arranged at the tail of the soil discharging plow. Through the synergistic effect of the compaction component and the air-permeable component, a perfect balance between soil compaction and air permeability is achieved. The compaction component can effectively compact the ditch wall, prevent the soil from loosening and sliding, and ensure the stability of the gully. The air-permeable component forms multiple air holes during the compaction process through the design of the air-permeable rod and the barb, ensuring the air permeability of the soil, which is beneficial to the respiration and healthy growth of soybean roots. This synergistic design with both compaction and air permeability not only improves the environmental quality of the soil but also provides good conditions for the growth of soybeans, further enhancing the practical value of the ditch opener. 2. Through the design of the ditch opener, the ditch cutting knife, and the soil discharging plow, synergistic efficiency is achieved during the ditch opening operation. The ditch opener first breaks the soil initially, effectively reducing the reaction force generated by the subsequent ditch cutting knife when breaking the soil. This synergistic effect reduces the bounce at the handrail position of the walking tractor head, enabling the operator to control the equipment more stably, thereby improving the overall stability of the ditch opening operation. At the same time, the soil discharging plow follows closely behind, automatically discharging the broken soil to both sides of the ditch, reducing the manual cleaning link and improving the operation efficiency. This close cooperation of the front and back processes forms an efficient synergy in the ditch opening operation, enhancing the overall operation efficiency. 3. Through the collaborative work of the elastic link member and the compaction member in the compaction component, the soil discharging plow can closely fit the ditch wall during the operation and maintain a stable traveling trajectory, significantly improving the straightness of the ditch opening. The elastic pressure of the elastic link member not only helps to compact the soil but also keeps the soil discharging plow at the center line position of the gully through its reaction force, thereby improving the straightness of the ditch opening. This optimized design of the structure, combined with the overall synergistic effect of the ditch opener, the ditch cutting knife, and the soil discharging plow, jointly ensures the high-quality completion of the ditch opening operation and improves the overall performance of the ditch opener. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of a ditch opener for soybean planting according to the present invention; Figure 2 It is a schematic diagram of another perspective structure of the ditch opener for soybean planting according to the present invention; Figure 3 is Figure 2 the enlarged structure schematic diagram at A in Figure 4Schematic diagram of the structure where the elastic link member and the fixed rod of the present invention are inserted into each other; Figure 5 Schematic sectional view of the compaction roller of the present invention; Figure 6 is Figure 5 Enlarged structure diagram at position B in Figure 7 Schematic diagram of the structure of the air-permeable component of the present invention; Figure 8 Schematic diagram of the structure of the air-permeable component of the present invention located inside the compaction roller; Reference numerals: 1, walking tractor head; 2, ditching plow; 3, ditching knife; 4, soil discharging plow; 5, soil compaction mechanism; 6, compaction component; 7, air-permeable component; 701, air-permeable rod; 702, barb; 703, retaining ring; 704, return spring; 705, spiral driving groove; 8, protective cover; 9, fixed rod; 901, insertion cavity; 10, elastic link member; 1001, compaction spring; 1002, insertion rod; 1003, connecting rod; 11, compaction member; 1101, side plate; 1102, universal joint seat; 1103, compaction roller; 1104, insertion hole; 1105, accommodating cavity; 1106, driving block. Detailed implementation manners

[0014] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0015] It should be pointed out that unless otherwise specified, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0016] As Figures 1 to 8 shown, a ditching machine for soybean planting according to the present invention includes a walking tractor head 1, and a ditching plow 2, a ditching knife 3 and a soil discharging plow 4 are sequentially installed at the tail of the walking tractor head 1.

[0017] In the present invention, the ditching plow 2 is used for initially breaking the soil, the ditching knife 3 is used for crushing the clumped soil after the ditching plow 2 breaks the soil, and the soil discharging plow 4 is used for pushing the crushed soil to both sides of the ditch.

[0018] In the present invention, soil compaction mechanisms 5 are rotatably installed on both sides of one end of the soil discharging plow 4 far away from the ditching knife 3. The soil compaction mechanism 5 includes compaction components 6 arranged on both sides of one end of the ditching knife 3, and air-permeable components 7 arranged on the compaction components 6.

[0019] Within the scope of the present invention, the walking tractor head 1 is used to drive forward. The ditching plow 2, the ditching knife 3, and the soil discharging plow 4 are all detachably arranged. Among them, a transmission mechanism for driving is provided on one side of the ditching knife 3. The walking tractor head 1, the transmission mechanism, and the ditching knife 3 are all prior arts. The working principle of the prior art is that the transmission mechanism drives the ditching knife 3 to rotate, thereby breaking the soil of the land. When breaking, the broken soil splashes, thus forming a pit. Then, the walking tractor head 1 moves forward, thereby realizing the formation of a gully. Therefore, the specific structure of the transmission mechanism will not be elaborated here too much. However, the above technology has the following technical problems during the ditching process: 1. When the soil of the land is relatively hard or there are stones, the ditching knife 3 rotates at a high speed for breaking, and the reaction force of its impact will cause the handrail position of the walking tractor head 1 to bounce. In order to ensure the normal opening of the gully depth, the operator needs to always maintain a downward control pressure so that the ditching knife 3 can stably break the soil at its depth. And with the long-term downward pressure control, the operator will feel tired; 2. After the soil is pulverized, although some soil can be scattered to both sides of the gully through the ditching knife 3, there is still some broken soil falling into the opened gully, and it is necessary to manually clean the broken soil to both sides later.

[0020] In order to reduce the reaction force of the impact during the breaking of the ditching knife 3, a ditching plow 2 is arranged in front of the ditching knife 3. The walking tractor head 1 drives the ditching plow 2 to break the soil of the land first. After the ditching plow 2 breaks the soil, the soil is separated from the land, and after passing over the ditching plow 2, it will form individual soil clods when falling on the ground. At this time, when the ditching knife 3 breaks each soil clod, the soil clod has no obstruction from the surrounding land and is easier to break, so that the reaction force of the ditching knife 3 is smaller. At the same time, the soil is also easier to be pulverized and then scattered to both sides of the gully. And for the part of the broken soil that has not been scattered to both sides of the gully, the soil discharging plow 4 behind the ditching knife 3 discharges the broken soil in the gully to both sides of the gully, thereby completing the ditching of the land.

[0021] Within the scope of the present invention, when the ditching plow 2 breaks the soil and when the soil discharging plow 4 discharges the broken soil in the gully, both the ditching plow 2 and the soil discharging plow 4 are pressed downward by the soil, so that the handrail position of the walking tractor head 1 is limited to a certain extent. As a result, when the ditching knife 3 breaks the caked soil, the bounce of its reaction force is offset by the downward pressing force of the ditching plow 2 and the soil discharging plow 4 by the soil. Thus, when the ditching knife 3 breaks the stones, it is more stable. Therefore, the ditching operator only needs to control the direction of the walking tractor head 1 and does not need to continuously press downward manually to break the soil through the ditching knife 3 for ditching, which greatly saves manpower.

[0022] It should be noted that when the soil plow 4 discharges the crushed soil in the gully to both sides of the gully, the crushed soil is loose by itself and will slide down along the inner wall of the gully, thus affecting the stability of the gully. Therefore, a compaction component 6 is arranged at the tail of the soil plow 4. The compaction component 6 moves along with the soil plow 4 and can roll-press the inner wall of the gully after the soil is discharged, so as to compact the loose and sliding soil, thereby maintaining the stability of the gully. However, in order to avoid excessive compaction of the soil, resulting in poor air permeability of the soil and further affecting the growth of soybeans, a plurality of air-permeable components 7 are arranged on the compaction component 6, so that when the compaction component 6 compacts the loose soil, the air-permeable components 7 can be inserted into the soil, and then a plurality of air holes are formed in the compacted inner wall of the gully, so as to ensure the respiration of the soybean roots and promote the healthy growth of the roots.

[0023] In the present invention, a protective cover 8 is fixedly installed at the tail of the walking tractor head 1, and the ditching knife 3 and the soil plow 4 are located below the protective cover 8; a fixing rod 9 is arranged at one end of the inner wall of the protective cover 8 away from the walking tractor head 1, and the soil plow 4 is fixedly installed at the lower end of the fixing rod 9 through a clamp.

[0024] In the present invention, the compaction component 6 includes an elastic link member 10 movably inserted into the bottom end of the fixing rod 9, and a compaction member 11 rotatably installed at both ends of the tail of the soil plow 4. One side of the compaction member 11 is rotatably connected to the elastic link member 10 through a ball head structure.

[0025] In the present invention, two groups of compaction members 11 are provided, which are respectively located at both ends of the tail of the soil plow 4. By rotating, the compaction of the side walls of gullies with different widths can be compared. Under the action of the elastic link member 10, the two groups of compaction members 11 are abutted against both sides of the inner wall of the gully, and the loose soil is compacted through the elastic pressure of the elastic link member 10.

[0026] In the present invention, the connection between one side of the compaction member 11 and the elastic link member 10 through the ball head structure enables the rotation of the compaction member 11 to adapt to the connection between the elastic link members 10 when adapting to gullies with different widths. Since the ball head structure is a prior art, its function is universal rotation, and the structure and function of the ball head structure are the same in the subsequent text, so no further description will be given here.

[0027] Within the present invention, a plugging cavity 901 is formed at the bottom end of the fixed rod 9. The elastic link member 10 is plugged and arranged within the plugging cavity 901. The elastic link member 10 includes a compaction spring 1001 arranged within the plugging cavity 901, a plugging rod 1002 movably plugged within the plugging cavity 901, and a connecting rod 1003 connected to the lower end of the circumferential side wall of the plugging rod 1002 through a ball head structure. There are two groups of connecting rods 1003, and ball head structures are arranged at both ends of the two groups of connecting rods 1003; the two groups of connecting rods 1003 are symmetrically arranged with respect to the axis of the plugging rod 1002, and the two groups of connecting rods 1003 are arranged at an obtuse angle. Specifically speaking, by arranging at an obtuse angle, it is avoided that the two groups of connecting rods 1003 are in a horizontal state, resulting in jamming and preventing the two compaction members 11 from rotating.

[0028] Within the present invention, in the initial state, the compaction spring 1001 is not compressed. When the compaction assembly 6 compacts the loose soil on the side wall of the gully, the two compaction members 11 rotate towards the center line position of the gully, so that the connecting rod 1003 connected through the ball head structure moves towards the center position, thereby pushing the plugging rod 1002 to move upward, thus squeezing the compaction spring 1001. After the compaction spring 1001 is squeezed, its reaction force pushes the two compaction members 11 tightly against the inner wall of the gully, so that the loose soil mass on the inner wall of the gully is compacted, thereby stabilizing the gully; at the same time, when the reaction force of the compaction spring 1001 causes the two compaction members 11 to tightly press against the inner wall of the gully, it also makes the soil discharging plow 4 located at the center line position of the gully, thereby improving the straight-line stability during the gully opening of the equipment. Specifically speaking, the direction change of the walking tractor head 1 is controlled by the position of the handrail, and the soil discharging plow 4 is located below the protective cover 8. Figure 2 It can be seen that it is located below the handrail of the walking tractor head 1. Therefore, after the soil discharging plow 4 is centered and stabilized by the two compaction members 11, the direction of the walking tractor head 1 is further stabilized, thereby improving the stability of straight-line gully opening.

[0029] Within the present invention, the compaction member 11 includes a side plate 1101 rotatably mounted at the tail of the soil discharging plow 4, a universal joint seat 1102 fixedly mounted on one side of the side plate 1101, and a compaction roller 1103 rotatably mounted on the universal joint seat 1102. Specifically, there are two sets of side plates 1101, which are respectively located at both ends of the tail of the soil discharging plow 4. One side of the side plate 1101 is connected to the link 1003 through a ball head structure. The universal joint seat 1102 is fixedly mounted on the side of the side plate 1101 away from the link 1003. A plurality of universal joint seats 1102 are arranged at equal intervals along the axial direction of the compaction roller. Through the arrangement of a plurality of them, the compaction roller 1103 on the universal joint seat 1102 can rotate. Under the reaction force, the compaction spring 1001 pushes the insertion rod 1002 downward, so that the two sets of links 1003 at the lower end of the circumferential side wall of the insertion rod 1002 move downward, thereby pushing the side plate 1101 connected through the ball head structure to rotate outward, so that the compaction roller 1103 rotatably mounted on the outer wall of the side plate 1101 through the universal joint seat 1102 tightly presses on the inner wall of the gully, and compacts the loose soil on the inner wall of the gully.

[0030] It should be noted that due to the arrangement of the universal joint seat 1102, when the universal joint seat 1102 is in use, for the switching between the two states of the compaction assembly 6 just entering the gully and completely entering the gully. When starting to dig the ditch, when the soil discharging plow 4 just enters the gully, it is necessary to manually press down the armrest of the hand tractor head 1 so that the soil discharging plow 4 can enter the gully. When the soil discharging plow 4 enters the gully, if the compaction roller 1103 does not rotate universally through the universal joint seat 1102 but has a fixed vertical axis, when the compaction roller 1103 enters the gully, it will scrape the inner wall of the gully, causing the inner wall to collapse. However, due to the arrangement of the universal joint seat 1102, when entering the gully, the compaction roller 1103 first touches the inner wall of the gully, and then as the equipment advances and with the manual downward pressure, the rotation axis of the compaction roller 1103 will change accordingly, so as to ensure that the compaction roller 1103 and the inner wall of the gully always enter while keeping the side walls in contact, that is, enter the gully gradually in an inclined state. After completely entering the gully, no downward pressure is applied manually, and at this time, the compaction roller 1103 only receives a forward drag, and it rolls while rubbing against the inner wall of the gully, so that the rotation axis of the compaction roller 1103 remains vertical.

[0031] Within the present invention, the ventilation component 7 includes ventilation rods 701 provided on the circumferential side wall of the compaction roller 1103 and barbs 702 provided on the circumferential side wall of the ventilation rods 701. There are multiple groups of barbs 702 arranged in a staggered manner, and the barbs 702 are arranged in a triangular shape.

[0032] Within the present invention, there is a rotational connection between the compaction roller 1103 and the universal joint seat 1102. Therefore, when the compaction roller 1103 is in extrusion contact with the inner wall of the gully, as the hand tractor head 1 advances, the compaction roller 1103 rolls on the inner wall of the gully, thereby driving the ventilation rod 701 into the soil. The outer wall of the compaction roller 1103 compacts the loose soil. When the ventilation rod 701 is driven into the soil, the barb 702 also enters the soil. It should be noted that the triangular barb 702 is a right triangle, with its right angle close to the outer wall of the compaction roller 1103 and the acute angle corresponding to the insertion end. Thus, when the barb 702 is provided on the ventilation rod 701, it does not affect its normal insertion. Specifically, the acute angle end of the triangular barb 702 does not affect insertion, and when pulled out, the right-angle side can drive the soil to loosen. Among them, when the compaction roller 1103 rolls, it will pull out the ventilation rod 701 driven into the soil. When pulling out, through the right-angle side of the staggered barb 702, it will encounter resistance from the soil, thereby partially bringing out the soil to a certain extent, making the soil in the hole loose. Thus, it is beneficial to the respiration of soybean roots and facilitates their growth and development.

[0033] Within the present invention, a plurality of insertion holes 1104 and accommodation cavities 1105 are provided on the circumferential side wall of the compaction roller 1103. The accommodation cavity 1105 is in communication with the insertion hole 1104. The ventilation rod 701 is inserted into the insertion hole 1104 in a matching manner. One end of the ventilation rod 701 penetrates through the insertion hole 1104 and extends into the accommodation cavity 1105. The diameter of the accommodation cavity 1105 is larger than that of the insertion hole 1104. A retaining ring 703 integrally formed with the end of the ventilation rod 701 is movably arranged in the accommodation cavity 1105. The function of the retaining ring 703 is to prevent the ventilation rod 701 from falling off.

[0034] Within the present invention, a return spring 704 is disposed within the accommodation cavity 1105. The return spring 704 is sleeved around the outer circumference of the ventilation rod 701. One end of the return spring 704 abuts against the retaining ring 703, and the other end of the return spring 704 abuts against one end of the inner wall of the accommodation cavity 1105 communicating with the insertion hole 1104. A driving block 1106 is disposed within the insertion hole 1104. A spiral driving groove 705 is formed at one end of the circumferential side wall of the ventilation rod 701 away from the barb 702. The spiral driving groove 705 and the driving block 1106 are in sliding fit. In the initial state, under the action of the return spring 704, the retaining ring 703 is pushed to fit against one end of the accommodation cavity 1105 away from the insertion hole 1104, and the driving block 1106 is located at one end of the spiral driving groove 705 close to the barb 702. When the compaction roller 1103 compacts while fitting against the side wall of the gully, the ventilation rod 701 and the barb 702 are inserted into the soil. As the compaction roller 1103 rolls, the ventilation rod 701 and the barb 702 will be pulled out of the soil. However, when being pulled out, the resistance between the ventilation rod 701 and the barb 702 and the soil will pull the ventilation rod 701 outwards. When the ventilation rod 701 is pulled out of the accommodation cavity 1105, through the sliding fit between the spiral driving groove 705 and the driving block 1106, during the pulling process of the ventilation rod 701, the ventilation rod 701 will rotate, so that the barb 702 stirs in the soil, further loosening the soil in the hole and improving the soil air permeability.

[0035] In the above text, wherever fixed connection is involved, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and deformations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ditching machine for soybean planting, comprising a walking tractor head, characterized in that, It further includes a ditching plow connected in sequence to the tail of the walking tractor head for initially breaking the soil, a ditching knife for crushing the caked soil after the ditching plow breaks the soil, and a soil discharging plow for pushing the crushed soil to both sides of the ditch. Soil compaction mechanisms are rotatably installed on both sides of the end of the soil discharging plow away from the ditching knife. The soil compaction mechanism includes compaction components arranged on both sides of one end of the ditching knife and ventilation components arranged on the compaction components; a protective cover is fixedly installed at the tail of the walking tractor head. The ditching knife and the soil discharging plow are located below the protective cover, and a fixing rod is arranged on the protective cover; the compaction components include elastic connecting rod members movably inserted into the bottom end of the fixing rod and compaction members rotatably installed at both ends of the tail of the soil discharging plow. One side of the compaction member is rotatably connected to the elastic connecting rod member through a ball head structure.

2. The ditching machine for soybean planting according to claim 1, characterized in that, An insertion cavity is opened at the bottom end of the fixing rod. The elastic connecting rod member is inserted into the insertion cavity. The elastic connecting rod member includes a compaction spring arranged in the insertion cavity, an insertion rod movably inserted into the insertion cavity, and a connecting rod connected to the circumferential side wall of the insertion rod through a ball head structure.

3. The ditching machine for soybean planting according to claim 2, characterized in that, There are two groups of the connecting rods. Ball head structures are arranged at both ends of the two groups of the connecting rods; the two groups of the connecting rods are symmetrically arranged with respect to the axis of the insertion rod.

4. A ditching machine for soybean planting according to claim 1 or 3, characterized in that, The compaction member includes a side plate rotatably installed at the tail of the soil discharging plow, a universal joint fixedly installed on one side of the side plate, and a compaction roller rotatably installed on the universal joint.

5. The ditching machine for soybean planting according to claim 4, characterized in that, The ventilation component includes ventilation rods arranged on the circumferential side wall of the compaction roller and barbs arranged on the circumferential side wall of the ventilation rods.

6. The ditching machine for soybean planting according to claim 5, characterized in that, A plurality of insertion holes and accommodation cavities are opened on the circumferential side wall of the compaction roller. The accommodation cavity is communicated with the insertion hole; the ventilation rod is inserted into the insertion hole in a matching manner, and one end of the ventilation rod penetrates through the insertion hole and extends into the accommodation cavity; the diameter of the accommodation cavity is larger than the diameter of the insertion hole, and a retaining ring integrally formed with the end of the ventilation rod is movably arranged in the accommodation cavity.

7. The ditching machine for soybean planting according to claim 6, characterized in that, A return spring is arranged in the accommodation cavity. The return spring is sleeved on the circumferential outside of the ventilation rod. One end of the return spring abuts against the retaining ring, and the other end of the return spring abuts against the accommodation cavity and is connected to one end of the inner wall of the insertion hole.

8. The ditching machine for soybean planting according to claim 7, wherein A driving block is arranged in the insertion hole. A spiral driving groove is opened at one end of the circumferential side wall of the ventilation rod away from the barb. The spiral driving groove is slidably matched with the driving block.

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