Pneumatic adjustable wormwood seed and fertilizer uniform sowing machine

Abstract

The invention provides a pneumatic adjustable wormwood seed and fertilizer uniform sowing machine, and relates to the technical field of agricultural planting, the pneumatic adjustable wormwood seed and fertilizer uniform sowing machine comprises a support mechanism, an adjustable seed and fertilizer adsorption device, a seed and fertilizer motion path selection mechanism, a transmission mechanism, a wind pressure supply mechanism and an adjustable ditching and earthing mechanism; the two adjustable seed and fertilizer adsorption devices are fixed at the rear upper part of the whole device through internal parts of the supporting mechanism, and the seed and fertilizer movement path selection mechanism is fixed at outlets of seed discharging channels of the adjustable seed and fertilizer adsorption devices; tail end pipelines on the front side and the rear side of the adjustable furrowing and earthing mechanism are connected with the adjustable furrowing and earthing mechanism, wormwood seeds or fertilizer in the adjustable furrowing and earthing mechanism are conveyed to the lower end of the furrow opener through a conveying pipeline in the adjustable furrowing and earthing mechanism, and the wormwood seeds and the fertilizer are located in the same longitudinal plane in the furrow. And the working mode is front-back reciprocating operation, and meanwhile, the integrated operation of ditching, soil covering and soil leveling is realized, so that the purposes of reducing cost and increasing efficiency are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural planting, in particular to a pneumatically adjustable uniform seeder for wormwood seeds and fertilizer. Background Art

[0002] Wormwood, also known as Artemisia argyi, is a perennial herb of the Compositae family. During the planting process of wormwood seeds, corresponding equipment is required to sow wormwood seeds and fertilizer.

[0003] Traditional wormwood planting equipment is relatively simple, and wormwood seeds and fertilizer are sown separately. The method of using sowing equipment or manual feeding is adopted to sow fertilizer or wormwood seeds at the planting positions in the farmland. Such a production method has a very low degree of mechanization. At the same time, since most wormwood seeds are relatively small, it is difficult to have corresponding matching equipment for sowing, resulting in problems such as relatively high mechanized planting costs and low practicability. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that traditional wormwood planting equipment is relatively simple, and wormwood seeds and fertilizer are sown separately. The method of using sowing equipment or manual feeding is adopted to sow fertilizer or wormwood seeds at the planting positions in the farmland. Such a production method has a very low degree of mechanization. At the same time, since most wormwood seeds are relatively small, it is difficult to have corresponding matching equipment for sowing, resulting in problems such as relatively high mechanized planting costs and low practicability.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows: a pneumatically adjustable uniform seeding and fertilizing machine for Artemisia argyi seeds, which includes a support mechanism, an adjustable seed and fertilizer adsorption device, a seed and fertilizer movement path selection mechanism, a transmission mechanism, a wind pressure supply mechanism, and an adjustable ditching and soil covering mechanism; the two adjustable seed and fertilizer adsorption devices are fixed to the upper rear of the overall device through the internal parts of the support mechanism, the seed and fertilizer movement path selection mechanism is fixed at the outlet of the seed metering channel of the adjustable seed and fertilizer adsorption device, and the pipes at the front and rear ends on both sides thereof are connected to the adjustable ditching and soil covering mechanism and transport the Artemisia argyi seeds or fertilizers inside through the internal transport pipe of the adjustable ditching and soil covering mechanism to the lower end of the ditching opener, and the Artemisia argyi seeds and fertilizers are distributed evenly in the same longitudinal plane in the ditch, with one seed and one fertilizer distributed evenly. The engine of the transmission mechanism is located at the chassis part of the support mechanism, and through parts such as bevel gears and shafts inside the transmission mechanism, a part of the power is output to the second Artemisia argyi seed adsorption disc and the first fertilizer adsorption disc meshed with the adjustable seed and fertilizer adsorption device, so as to drive the movement of the Artemisia argyi seeds and fertilizers. At the same time, another part of the power of the transmission mechanism is transmitted to the wheel axle to realize the movement of the whole machine. The negative pressure port of the wind pressure supply mechanism is connected to the wind pressure hole at the center of the adjustable seed and fertilizer adsorption device through the internal wind pressure transmission mechanism through a pipe, so as to control the negative pressure inside the adjustable seed and fertilizer adsorption device. At the same time, since the size of the negative pressure chamber inside the adjustable seed and fertilizer adsorption device is small, the negative pressure of the fan required to form an approximate vacuum is small, that is, the power required for the fan is small. At the same time, the number of cavity rings working inside the adjustable seed and fertilizer adsorption device is adjusted through a flexible air ring adjustment device, so as to realize the adjustment of the seeding rate. The positive pressure port of the wind pressure supply mechanism is connected to the seed and fertilizer delivery pipes at the front end of the seed and fertilizer movement path selection mechanism through a pipe, so as to accelerate the falling speed of the seeds and fertilizers through the blowing action of the positive pressure wind. The adjustable ditching and soil covering mechanisms on both the front and rear sides are symmetrically designed, and the working parts such as the ditching opener, soil covering device, and single leveling plate above it can select the working mode through the adjustment device on the adjustable ditching and soil covering mechanism, that is, when moving forward, the soil covering device of the rear adjustable ditching and soil covering mechanism is lifted, and at the same time, the ditching opener and each leveling plate jointly form a leveling support plate to level the ground after soil covering in the front, finally realizing the control of multiple rows of seed and fertilizer discharging by a low-power fan, and the working mode is reciprocating operation back and forth, and at the same time realizing the integration of ditching, soil covering, and leveling operations, so as to achieve the purpose of reducing costs and increasing efficiency.

[0006] Preferably, the support mechanism includes: an adjustable seed and fertilizer adsorption device support plate, a first seed plate gear support shaft, a transmission chain, a rear wheel, a first frame support plate, a frame support plate body, a first front frame support plate, a front wheel, a front axle body, a frame front baffle, a left sprocket drive shaft, a second front frame support plate, a second frame support plate, a right sprocket drive shaft, a rear baffle, a second seed plate gear support shaft, and a middle support plate. The frame front baffle, the frame support plate body, and the first frame support plate are welded in a surrounding manner. The first frame support plate and the second frame support plate are horizontally welded above the welded frame. Two first front frame support plates and one second front frame support plate are welded above the frame front baffle and fixed above the frame front baffle. One middle support plate is flush with the first frame support plate and welded and fixed above the device. The four adjustable seed and fertilizer adsorption device support plates are on the middle support plate and welded at corresponding positions. Holes are opened at fixed positions on the adjustable seed and fertilizer adsorption device support plates to prevent bearings. The first seed plate gear support shaft and the second seed plate gear support shaft are fixed and rotatable through bearings in the middle of the two left adjustable seed and fertilizer adsorption device support plates and the two right adjustable seed and fertilizer adsorption device support plates. Similarly, holes are opened on the frame support plate body and the corresponding opposite plate for installing bearings, so that the left sprocket drive shaft and the right sprocket drive shaft can be fixed and rotatable.

[0007] The effects achieved by the above components are as follows: Through the precise layout of the support plates and bearings, the support mechanism ensures the stable operation of the adjustable seed and fertilizer adsorption device and the transmission system, optimizes the support structure, improves the overall firmness and durability of the equipment. This design effectively enhances the stability of the equipment, ensuring the precise cooperation of each component and long-term operation during the operation process.

[0008] Preferably, the adjustable seed-fertilizer adsorption device includes: a negative pressure air chamber, an Artemisia seed fertilizer filling box, a return spring body, a first negative pressure port, a seed-fertilizer carrying tray, a right-side fertilizer movement box, an air chamber effective volume adjustment bolt, a first fertilizer filling box body, a first Artemisia seed filling box, a second Artemisia seed filling box, a second fertilizer filling box, a return spring internal connection bolt, an air chamber effective volume flexible adjustment ring, a first air chamber effective volume rigid auxiliary adjustment ring, a left-side seed adsorption tray, a second air chamber effective volume rigid auxiliary adjustment ring, a second Artemisia seed adsorption tray, a second fertilizer adsorption tray, an Artemisia seed-fertilizer discharge channel, a seed internal discharge port (adsorption and transportation start end), a second Artemisia seed-fertilizer filling box. The first Artemisia seed fertilizer filling box and the second Artemisia seed-fertilizer filling box are symmetrically distributed and fixed at a set position by four adjustable seed-fertilizer adsorption device support plates. At this time, a feeding box with four feeding ports is fixedly connected above the two filling boxes, and two pairs are connected on the left and right sides: the second Artemisia seed adsorption tray and the second fertilizer adsorption tray. At this time, an air chamber effective volume flexible adjustment ring is installed outside each adsorption tray, which is included in two pairs: the Artemisia seed fertilizer filling box and the right-side fertilizer movement box, and the four filling boxes are fastened in pairs on the Artemisia seed fertilizer filling box and the second Artemisia seed-fertilizer filling box by screws. The first air chamber effective volume rigid auxiliary adjustment ring is installed inside the air chamber effective volume flexible adjustment ring, and holes are opened on the air chamber effective volume flexible adjustment ring. The return spring internal connection bolt is threadedly connected to the first air chamber effective volume rigid auxiliary adjustment ring. The return spring body is connected above the return spring internal connection bolt, and the end of the return spring body is connected and fixed to the end of the air chamber effective volume adjustment bolt. The air chamber effective volume adjustment bolt realizes lifting through the threaded holes opened on the two pairs of Artemisia seed fertilizer filling boxes and the right-side fertilizer movement box. Through the force transmission of the return spring body, the air chamber effective volume rigid auxiliary adjustment ring, etc., the opening of the effective volume flexible adjustment ring is finally realized, so as to change the effective volume of the negative pressure chamber, and finally realize the adjustment of the number of working hole rings, and finally realize the adjustment of the number of falling materials. The two pairs of adsorption trays are driven by meshing with the gears on the second seed metering disc gear support shaft to realize the transportation of the adsorbed seed fertilizer.

[0009] The effects achieved by the above components are as follows: The adjustable seed-fertilizer adsorption device realizes the precise adjustment of the seeding rate through the air pressure control and spring return mechanism, reduces the demand for fan power, improves the seeding accuracy and stability at the same time. This device makes the distribution of seed fertilizer more uniform, ensuring the high efficiency and low energy consumption of the seeding operation.

[0010] Preferably, the seed fertilizer movement path selection mechanism includes: a first feeding channel, a second feeding channel, a seed fertilizer movement path selector, a seed fertilizer rear-end conveying pipe, and a seed fertilizer front-end conveying pipe. The first feeding channel is connected to the wormwood seed fertilizer discharge channel, the second feeding channel is sleeved on the first feeding channel. There is a circular hole in the middle of the seed fertilizer movement path selector, which is coaxially matched with the circular shaft at the center inside the seed fertilizer movement path selection mechanism and can rotate around it. The upper ends of the seed fertilizer rear-end conveying pipe and the seed fertilizer front-end conveying pipe are respectively connected to the front and rear ends of the second feeding channel, and the ends are connected to the front and rear adjustable ditching and soil covering mechanism. By rotating the seed fertilizer movement path selector, the selection of the seed fertilizer for the seed fertilizer rear-end conveying pipe and the seed fertilizer front-end conveying pipe is realized, so that the movement direction of the granular fertilizer is consistent with the machine operation direction.

[0011] The effects achieved by the above components are as follows: The movement path selector can adjust the flow path of the seed fertilizer according to needs, optimize the sowing process, and the flexible path selection reduces the complexity of the machine and improves the operation convenience. This design enables the seeder to quickly adjust the sowing direction according to different operation requirements and improves the operation efficiency.

[0012] Preferably, the transmission mechanism includes: a first fertilizer adsorption disc, a left first meshing gear, a middle transmission gear, a left second meshing gear, a middle transmission upstream gear, a left front shaft, a first middle transmission upstream transmission shaft, a bevel gear, a first vehicle body movement transmission shaft, a right front shaft, a first speed change gear, a second middle transmission upstream transmission shaft, a second vehicle body movement transmission shaft, a transmission chain body, a rear shaft, and an engine. The engine is fixed to the chassis, and the power is transmitted to the front wheels through the first vehicle body movement transmission shaft, the right front shaft, and a solid line, and the vehicle body power is transmitted to the rear end through the first speed change gear and the second vehicle body movement transmission shaft, so as to realize the forward and backward movement of the vehicle body. The first middle transmission upstream transmission shaft and the second middle transmission upstream transmission shaft are driven to rotate by three bevel gears, so as to drive two middle transmission upstream gears to rotate. The force is transmitted to the first middle transmission upstream transmission shaft and the second middle transmission upstream transmission shaft through a chain and the left and right middle transmission gears, and then drives four middle transmission gears to rotate and mesh with the corresponding first fertilizer adsorption disc, second wormwood seed adsorption disc, left seed adsorption disc, and second fertilizer adsorption disc to drive them to rotate.

[0013] The effects achieved by the above components are as follows: Through the precise gear transmission and multi-point power transmission system, the movement synchronization of the wormwood seeds and fertilizers is ensured, the transmission efficiency is improved, the energy loss is reduced, and the stable operation of the machine is realized. This transmission system ensures that the equipment can withstand long-term operation without easy failure while working efficiently.

[0014] Preferably, the air pressure supply mechanism includes: a first negative pressure transmitter, a first positive pressure transmitter, a blower, a first negative pressure three-way pipe, a negative pressure elbow pipe, a second negative pressure transmitter, a second positive pressure transmitter, a positive pressure blowing pipe, a second negative pressure port, and a negative pressure pipeline. The blower is fixed at the corresponding position of the vehicle chassis. The negative pressure port of the blower is externally connected to a pipeline, a first negative pressure three-way pipe, and a negative pressure elbow pipe. At the same time, the upper ends of the first negative pressure three-way pipe and the negative pressure elbow pipe are respectively externally connected to the second negative pressure transmitter and the first negative pressure transmitter, and then connected to the second negative pressure port through a hose to transmit negative pressure. The positive pressure port of the blower is connected to the second positive pressure transmitter and the positive pressure blowing pipe through a positive pressure pipeline and a positive pressure elbow pipe. The positive pressure blowing pipe is connected to the rear-end conveying pipe to accelerate the falling of the wormwood seeds and fertilizer, thereby reducing the falling time.

[0015] The effects achieved by the above components are as follows: The negative pressure and positive pressure systems of the blower provide strong air flow support for seeding, optimize the transportation efficiency of seeds and fertilizer, reduce the falling time by precisely regulating the air flow, improve the operation speed and accuracy. The design of the air pressure system significantly improves the operation efficiency of the seeder, reduces energy consumption, and ensures the long-term stable operation of the machine.

[0016] Preferably, the adjustable ditching and soil covering mechanism includes: a first rear-end rotating shaft, a front and rear bumper, a second rear-end rotating shaft, a rear-end soil leveling single plate, a rear-end plow blade, a working mode adjustment rod, a soil covering disc body, a soil covering disc fixing shaft, a front-end plow blade, a front-end soil leveling single plate, a first soil covering device fixing device, a soil leveling single plate connecting part, a front-end rotating shaft, a second soil covering device fixing device, and a working mode adjustment handle. The front and rear bumper is respectively welded and fixed to the front and rear of the machine through two connecting parts at the upper end of the front and rear bumper. The front-end rotating shaft is fixed to the front and rear bumper by connecting with the working mode adjustment rod. The working mode adjustment rod is fixedly connected to the front-end baffle and the rear-end baffle of the frame, and the working mode adjustment handle penetrates through the inside of the working mode adjustment rod. By rotating the adjustment handle, the working mode adjustment rod rotates around its rotation center, thereby driving the front-end rotating shaft connected to its end to rotate by a corresponding angle. The upper end of the first soil covering device fixing device is matched and tightly fixed with the approximately square shaft at the front of the front-end rotating shaft, and its lower rear end is provided with a soil covering disc fixing shaft, which is matched and fixed with the soil covering disc body. Subsequently, bearings can also be installed on the soil covering disc fixing shaft to realize the rolling of the soil covering disc body during work. The soil leveling single plate connecting part is connected to the front-end rotating shaft at the upper end and the raised part at the upper part of the front-end soil leveling single plate at the lower end, thereby realizing the fixation of the front-end soil leveling single plate. The front-end plow blade is fixed on the front and rear bumper, and the front and rear adjustable ditching and soil covering mechanisms are exactly the same.

[0017] The effects achieved by the above components are as follows: The first soil covering device fixing device, the soil covering disc body, and the front end soil leveling single plate rotate correspondingly with the rotation of the front end rotating shaft, and the rotation of the front end rotating shaft is adjusted by the rotation adjusting handle on the working mode adjusting rod. Finally, the rotation of the first soil covering device fixing device, the soil covering disc body, and the front end soil leveling single plate is controlled by rotating the adjusting handle. At the same time, since the soil covering disc body is installed behind the front end plow blade and in the same direction, and the front end soil leveling single plate is installed staggeredly with the front end plow blade, when the front end soil leveling single plate is lifted, the soil covering disc body drops, so that only the front end plow blade and the soil covering disc body work, thus realizing the operations of ditch opening and soil covering. At this time, by lifting the rear end soil covering disc body and dropping the soil leveling single plate, the rear end soil leveling single plate and the plow blade form an approximately sealed scimitar-shaped geometric cuboid, so as to level the soil pile covered at the front end at this time. On the contrary, when the rear end of the machine works, just reverse the operation. Finally, the adjustability of the ditch opening and soil covering mechanism is realized, and a pneumatic artemisia seed and fertilizer uniform seeding machine can work in the front and rear directions, avoiding circular turning.

[0018] The beneficial effects of the present invention are: By controlling the volume of the external negative pressure chamber of the adjustable seed and fertilizer adsorption device, the present invention achieves the requirement that a small-power fan meets a large negative pressure, and further ensures the purpose of adsorbing multiple rows of artemisia seeds and fertilizers by the small-power fan; Through the flexible air ring adjustment parts inside the adjustable seed and fertilizer adsorption device, the effective volume of the internal wind pressure is controlled, and then the effective number of adsorbed seeds and fertilizers inside is controlled. And by designing an adsorption disc that meets the shapes of artemisia seeds and fertilizers, the purpose of simultaneously adsorbing two different materials can be ensured; The front and rear end adjustable ditch opening and soil covering mechanism can meet the selection of corresponding working parts according to the working direction of the vehicle body, and achieve the goals of reciprocating ditch opening, soil covering, and soil leveling; Through the seed and fertilizer movement path selection mechanism, the seed and fertilizer movement path under corresponding working conditions is selected to meet the working requirements of reciprocating movement and avoid small circular turning; By limiting the filling positions of artemisia seeds and fertilizers, the whole movement paths of the two are ensured, and then the determination of the number ratio of seeds and fertilizers at the same position in the same ditch is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the drawings and embodiments; Figure 1 Schematic diagram of a pneumatic adjustable artemisia seed and fertilizer uniform seeding machine provided by the present invention; Figure 2 Schematic diagram of the structure of the support mechanism of the present invention; Figure 3 Schematic diagram of the adjustable seed and fertilizer adsorption device of the present invention Figure 1 ; Figure 4 Schematic diagram of the adjustable seed fertilizer adsorption device of the present invention Figure 2 ; Figure 5 Schematic diagram of the seed fertilizer movement path selection mechanism of the present invention Figure 1 ; Figure 6 Schematic diagram of the seed fertilizer movement path selection mechanism of the present invention Figure 2 ; Figure 7 Structural schematic diagram of the transmission mechanism of the present invention; Figure 8 Structural schematic diagram of the air pressure supply mechanism of the present invention; Figure 9 Structural schematic diagram of the position of the fan of the air pressure supply mechanism of the present invention; Figure 10 Structural schematic diagram of the adjustable ditching and soil covering mechanism of the present invention; Figure 11 Structural schematic diagram of the position of the connecting part of the flat soil single plate of the present invention; Figure 12 Structural schematic diagram of the position of the front end rotating shaft of the present invention; In the figure: 1. Support mechanism; 101. Support plate of the adjustable seed fertilizer adsorption device; 12. Support shaft of the first seed metering disc gear; 13. Transmission chain; 14. Rear wheel; 15. First frame support plate; 16. Frame support plate body; 17. First front frame support plate; 18. Front wheel; 19. Front axle body; 20. Frame front baffle; 21. Left sprocket drive shaft; 22. Second front frame support plate; 23. Second frame support plate; 24. Right sprocket drive shaft; 25. Rear baffle; 26. Support shaft of the second seed metering disc gear; 152. Middle support plate; 2. Adjustable seed fertilizer adsorption device; 27. Negative pressure chamber; 28. Wormwood seed fertilizer filling box; 29. Return spring body; 30. First negative pressure port; 31. Seed fertilizer carrying disc; 32. Right fertilizer movement box; 33. Air chamber effective volume adjustment bolt; 34. First fertilizer filling box body; 35. First wormwood seed filling box; 36. Second wormwood seed filling box; 37. Second fertilizer filling box; 38. Internal connection bolt of the return spring; 39. Flexible adjustment ring for the effective volume of the air chamber; 40. First rigid auxiliary adjustment ring for the effective volume of the air chamber; 41. Second rigid auxiliary adjustment ring for the effective volume of the air chamber; 42. Left grain adsorption disc; 43. Second wormwood seed adsorption disc; 44. Second fertilizer adsorption disc; 45. Wormwood seed fertilizer external discharge channel; 46. Internal discharge port of the grain; 47. Second wormwood seed fertilizer filling box; 3. Seed fertilizer movement path selection mechanism; 48. First feeding channel; 49. Second feeding channel; 50. Seed fertilizer movement path selector; 51. Seed fertilizer rear end conveying pipe; 52. Seed fertilizer front end conveying pipe; 4. Transmission mechanism; 53. First fertilizer adsorption disc; 54. First left meshing gear; 55. Middle transmission gear; 56. Second left meshing gear; 57. Upper middle transmission gear; 58. Left front axle; 59. First upper middle transmission drive shaft; 60. Bevel gear; 61. First vehicle body movement drive shaft; 62. Right front axle; 63. First variable speed gear; 64. Second upper middle transmission drive shaft; 65. Second vehicle body movement drive shaft; 66. Transmission chain body; 67. Rear axle; 68. Engine 5. Wind pressure supply mechanism; 69. First negative pressure transmitter; 70. First positive pressure transmitter; 71. Fan; 72. First negative pressure three-way pipe; 73. Negative pressure folding pipe; 74. Second negative pressure transmitter; 75. Second positive pressure transmitter; 76. Positive pressure blowing pipe; 77. Second negative pressure port; 78. Negative pressure pipeline 6. Adjustable ditching and soil covering mechanism; 79. First rear end rotating shaft; 80. Front and rear bumpers; 81. Second rear end rotating shaft; 82. Rear end flat soil single plate; 83. Rear end plow blade; 84. Working mode adjustment rod; 85. Soil covering disc body; 86. Soil covering disc fixed shaft; 87. Front end plow blade; 88. Front end flat soil single plate; 89. First soil covering device fixing device; 90. Flat soil single plate connecting part; 91. Front end rotating shaft; 92. Second soil covering device fixing device; 93. Working mode adjustment handle Specific embodiments

[0020] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention

[0021] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances

[0022] Figure 1 - Figure 2 A pneumatically adjustable wormwood seed and fertilizer uniform seeding machine shown, a pneumatically adjustable wormwood seed and fertilizer uniform seeding machine, includes a support mechanism 1, an adjustable seed and fertilizer adsorption device 2, a seed and fertilizer movement path selection mechanism 3, a transmission mechanism 4, a wind pressure supply mechanism 5, and an adjustable ditching and soil covering mechanism 6

[0023] Figure 1 - Figure 12The two adjustable seed and fertilizer adsorption devices 2 shown are fixed to the upper rear of the overall device through the internal parts of the support mechanism 1. The seed and fertilizer movement path selection mechanism 3 is fixed at the outlet of the seed metering channel of the adjustable seed and fertilizer adsorption device 2. The pipes at the front and rear ends on both sides of it are connected to the adjustable ditching and soil covering mechanism 6, and the wormwood seeds or fertilizers inside are sent to the lower end of the ditching opener through the internal transportation pipe of the adjustable ditching and soil covering mechanism 6, and the wormwood seeds and fertilizers are in the same longitudinal plane in the ditch, with a uniform distribution of one seed and one fertilizer. The engine 68 of the transmission mechanism 4 is located at the chassis part of the support mechanism 1. Through parts such as the bevel gear 60 and the shaft inside the transmission mechanism 4, part of the power is output to the second wormwood seed adsorption disc 43 and the first fertilizer adsorption disc 53 meshing with the adjustable seed and fertilizer adsorption device 2, so as to drive the movement of the wormwood seeds and fertilizers. At the same time, another part of the power of the transmission mechanism 4 is transmitted to the wheel axle to realize the movement of the whole machine. The negative pressure port of the air pressure supply mechanism 5 is connected to the air pressure hole at the center of the adjustable seed and fertilizer adsorption device 2 through the internal air pressure transmission mechanism through a pipe, so as to control the negative pressure inside the adjustable seed and fertilizer adsorption device 2. At the same time, because the size of the negative pressure chamber inside the adjustable seed and fertilizer adsorption device 2 is small, the negative pressure of the fan 71 required to form an approximate vacuum is small, that is, the power required for the fan 71 is small. At the same time, the number of cavity rings inside the adjustable seed and fertilizer adsorption device 2 is adjusted through the flexible air ring adjustment device to realize the adjustment of the seeding rate. The positive pressure port of the air pressure supply mechanism 5 is connected to the seed and fertilizer delivery pipes at the front end of the seed and fertilizer movement path selection mechanism 3 through a pipe, so as to accelerate the falling speed of the seeds and fertilizers through the blowing action of the positive pressure air. The adjustable ditching and soil covering mechanisms 6 on both sides are symmetrically designed. The working parts such as the ditching opener, soil covering device, and single soil leveling plate above it realize the selection of the working mode through the adjustment device on the adjustable ditching and soil covering mechanism 6. That is, when moving forward, the soil covering device of the rear adjustable ditching and soil covering mechanism 6 is lifted, and at the same time, the ditching opener and each soil leveling plate jointly form a soil leveling support plate to level the ground that has been covered with soil in the front. Finally, a low-power fan 71 is used to control multi-row seed and fertilizer discharging, and the working mode is reciprocating operation back and forth, and at the same time, ditching, soil covering, and soil leveling are integrated operations to achieve the purpose of reducing costs and increasing efficiency.

[0024] Figure 1 - Figure 12After the machine shown is started, the fan 71 generates negative pressure, and the negative pressure is transmitted to the negative pressure air chamber 27 through the negative pressure pipe 78 and other components. Under the action of negative pressure, the seed fertilizer carrying plate 31 adsorbs the mugwort seed fertilizer, and the left seed adsorption plate 42, the second mugwort seed adsorption plate 43, and the second fertilizer adsorption plate 44 also adsorb the seed fertilizer synchronously. The engine 68 drives the second seed row disk gear support shaft 26 to rotate through the transmission mechanism 4, and the adsorption plate meshed with the gear on the shaft rotates accordingly to transport the adsorbed seed fertilizer. During the transportation process, by adjusting the air chamber effective volume adjustment bolt 33, the effective volume of the negative pressure air chamber 27 is changed, and then the amount of seed fertilizer adsorbed and transported is accurately controlled to achieve accurate adjustment of the sowing amount. When the adsorption plate rotates to the start end of the adsorption transportation of the seed fertilizer internal discharge port 46, the seed fertilizer is discharged through the mugwort seed fertilizer external discharge channel 45 and enters the subsequent seed fertilizer movement path selection mechanism 3.

[0025] Figure 1 - Figure 12 When the seed fertilizer movement path selection mechanism 3 is in operation, the first feeding channel 48 is connected to the mugwort seed fertilizer discharge channel 45 to ensure a tight connection to prevent leakage of the seed fertilizer. The second feeding channel 49 is sleeved on the first feeding channel 48 to ensure smooth sleeve connection without jamming. The circular hole in the middle of the seed fertilizer movement path selector 50 is coaxially matched with the circular axis at the center of the seed fertilizer movement path selection mechanism 3 to ensure that the two are tightly matched. The seed fertilizer movement path selector 50 can rotate flexibly around the circular axis, and the upper ends of the seed fertilizer rear end delivery pipe 51 and the seed fertilizer front end delivery pipe 52 are respectively connected to the front and rear ends of the second feeding channel 49, and the ends are connected to the front and rear ends. During debugging, the seed fertilizer movement path selector 50 is rotated to check whether it rotates flexibly, and the seed fertilizer is observed to enter the seed fertilizer rear end delivery pipe 51 and the seed fertilizer front end delivery pipe 52 through the first feeding channel 48 and the second feeding channel 49 at different rotation angles to ensure accurate path selection and smooth seed fertilizer delivery. According to the specific needs of the sowing operation, the seed fertilizer movement path selector 50 is rotated manually or through the control system to change its position. When the seed fertilizer movement path selector 50 is rotated to a specific position, the seed fertilizer enters the corresponding seed fertilizer rear end conveying pipe 51 or seed fertilizer front end conveying pipe 52 from the first feeding channel 48 and the second feeding channel 49, so that the movement direction of the seed fertilizer is consistent with the operation direction of the machine, thereby realizing the function of adjusting the sowing direction according to different operation requirements.

[0026] Figure 1 - Figure 12When the shown transmission mechanism 4 is in use, the engine 68 is fixed at a set position on the chassis to ensure firm fixation and stable connection. Install the first vehicle body movement drive shaft 61 and the right front axle 62 to transmit the power of the engine 68 to the front wheels, enabling the front wheels to rotate. Install the first speed change gear 63 and the second vehicle body movement drive shaft 65 to transmit the vehicle body power to the rear wheels, realizing the forward and backward functions of the vehicle body. Install three bevel gears 60 so that they mesh with each other to drive the first middle transmission upstream drive shaft 59 and the second middle transmission upstream drive shaft 64 to rotate. Install the middle transmission upstream gears 57 on the first middle transmission upstream drive shaft 59 and the second middle transmission upstream drive shaft 64 to ensure accurate gear installation and good meshing. Transmit the force to the left and right two middle transmission gears 55 through the transmission chain body 66, and then drive the first middle transmission upstream drive shaft 59 and the second middle transmission upstream drive shaft 64 to rotate by the middle transmission gears 55. Meshingly install the first fertilizer adsorption disc 53, the second wormwood seed adsorption disc 43, the left seed adsorption disc 42, and the second fertilizer adsorption disc 44 with the corresponding middle transmission gears 55 respectively to ensure smooth gear transmission, no jamming and abnormal noise. During debugging, start the engine 68, observe the operation of each transmission component, check whether the gear meshing is tight and whether the transmission chain body 66 is properly tensioned, and make adjustments in time if there are any abnormalities. Test whether the forward and backward movement of the vehicle body and the rotation of the seed and fertilizer adsorption disc are normal to ensure accurate power transmission and synchronous movement of each component. After the engine 68 is started, transmit the power to the wheels in sequence through the first vehicle body movement drive shaft 61, the right front axle 62, the first speed change gear 63, and the second vehicle body movement drive shaft 65 to realize the movement of the vehicle body. At the same time, the power of the engine 68 drives the first middle transmission upstream drive shaft 59 and the second middle transmission upstream drive shaft 64 to rotate through the bevel gears 60, and then drives the seed and fertilizer adsorption disc to rotate through the transmission chain body 66 and the middle transmission gears 55, enabling the seed and fertilizer adsorption disc to adsorb and transport seeds and fertilizers, ensuring the synchronous movement of wormwood seeds and fertilizers, and realizing efficient seeding operations.

[0027] Figure 1 - Figure 12When the wind pressure supply mechanism 5 shown in the figure is in use, the fan 71 is fixed at the corresponding position on the vehicle chassis to ensure firm fixation and stable operation. A pipeline is connected to the negative pressure port of the fan 71, and the first negative pressure three-way pipe 72 and the negative pressure elbow pipe 73 are installed in sequence. The upper ends of the first negative pressure three-way pipe 72 and the negative pressure elbow pipe 73 are respectively connected to the second negative pressure transmitter 74 and the first negative pressure transmitter 69. Finally, it is connected to the second negative pressure port 77 through a hose to form a complete negative pressure transmission channel. A positive pressure pipeline and a positive pressure elbow pipe are connected to the positive pressure port of the fan 71, and are connected to the second positive pressure transmitter 75 and the positive pressure blowing pipe 76. The positive pressure blowing pipe 76 is connected to the rear-end conveying pipe to ensure tight connection and no leakage. During commissioning, the fan 71 is started, and the air pressure conditions of the negative pressure and positive pressure systems are checked. Tools such as pressure gauges are used to detect whether the pressure of each part meets the design requirements. Observe the situation of the seed fertilizer during the process of negative pressure adsorption and positive pressure accelerated falling. If there is any abnormality, adjust the pipeline connection or check the operating parameters of the fan 71 to ensure that the wind pressure system can work normally and provide appropriate air flow support for seeding. When it is running, the fan 71 is started to generate negative pressure and positive pressure. The negative pressure is transmitted to parts such as the negative pressure air chamber 27 through the negative pressure transmission channel, so that the adsorption devices such as the seed fertilizer carrying tray 31 can adsorb the wormwood seed fertilizer. The positive pressure is transmitted to the positive pressure blowing pipe 76 through the positive pressure pipeline, which plays a role in accelerating the falling of the wormwood seeds and fertilizers passing through the rear-end conveying pipe, reducing the falling time and improving the seeding efficiency. During the operation process, according to the actual seeding situation, the rotation speed of the fan 71 can be adjusted through the control system to accurately control the air flow size to meet different seeding requirements.

[0028] Working principle: When carrying out agricultural planting activities of Artemisia argyi using an Artemisia argyi seed and fertilizer uniform seeding machine, the adjustable seed and fertilizer adsorption device 2 is fixed to the upper rear of the overall device through the support mechanism 1. Two adjustable furrowing and soil covering mechanisms 6 are fixed to the front and rear ends of the vehicle body. The air pressure supply mechanism 5 is connected to the adjustable seed and fertilizer adsorption device to enable the internal Artemisia argyi seeds and fertilizers to be adsorbed. The transmission mechanism 4 drives the adsorption disc through bevel gears 60, shafts, gears, and chains, thereby transporting the adsorbed Artemisia argyi seeds and fertilizers. After being transported to the seed discharging port, by installing a brush or a scraper near the seed discharging port, the materials are scraped off and sent along the seed discharging channel to the seed and fertilizer movement path selection mechanism 3. By adjusting the rotation of the seed and fertilizer movement path selector 50, the movement path of the Artemisia argyi seeds and fertilizers is selected, and the seeds and fertilizers are sent to the front pipeline or the rear pipeline, and move by relying on the gravity effect, so as to be sent to the adjustable furrowing and soil covering mechanisms 6 at the front end or the rear end according to the operation direction. The front and rear furrowing and soil covering main shafts are symmetrically fixed to the front and rear end vehicle frames. Through the internal adjustment mechanism of the adjustable furrowing and soil covering mechanism 6, the operation modes of furrowing, soil covering, and soil leveling at the front end or the rear end are selected according to the operation direction of the vehicle body. Finally, a uniform direct seeding method of Artemisia argyi seeds and fertilizers with a small power air pressure driving a large seeding rate and an adjustable seeding rate is realized, and at the same time, the situation of the vehicle body turning in a circle is avoided. The operations of furrowing, seed and fertilizer dropping, soil covering, and soil leveling can be integrated through reciprocating motion.

[0029] Inspired by the above ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications within the scope not deviating from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An air-pressure adjustable uniform seeder for wormwood seeds and fertilizer, characterized in that: It includes a support mechanism (1), an adjustable seed and fertilizer adsorption device (2), a seed and fertilizer movement path selection mechanism (3), a transmission mechanism (4), a wind pressure supply mechanism (5), and an adjustable ditching and soil covering mechanism (6); the two adjustable seed and fertilizer adsorption devices (2) are fixed to the upper rear of the overall device through the internal parts of the support mechanism (1). The seed and fertilizer movement path selection mechanism (3) is fixed at the outlet of the seed metering channel of the adjustable seed and fertilizer adsorption device (2). The end pipes on its front and rear sides are connected to the adjustable ditching and soil covering mechanism (6) and transport the wormwood seeds or fertilizers inside through the internal transport pipe of the adjustable ditching and soil covering mechanism (6) to the lower end of the ditching opener, and the wormwood seeds and fertilizers are distributed evenly in the same longitudinal plane in the ditch, with one seed and one fertilizer evenly distributed. The engine (68) of the transmission mechanism (4) is located in the chassis part of the support mechanism (1). Through parts such as bevel gears (60) and shafts inside the transmission mechanism (4), part of the power is output to the second wormwood seed adsorption disc (43) and the first fertilizer adsorption disc (53) meshed with the adjustable seed and fertilizer adsorption device (2), thereby driving the movement of the wormwood seeds and fertilizers. At the same time, another part of the power of the transmission mechanism (4) is transmitted to the wheel axle to realize the movement of the whole machine. The negative pressure port of the wind pressure supply mechanism (5) is connected to the wind pressure hole at the center of the adjustable seed and fertilizer adsorption device (2) through a pipe and an internal wind pressure transmission mechanism, realizing the control of the negative pressure inside the adjustable seed and fertilizer adsorption device (2). At the same time, due to the small size of the negative pressure chamber inside the adjustable seed and fertilizer adsorption device (2), the negative pressure of the fan (71) required to form an approximate vacuum is small, that is, the power required for the fan (71) is small. At the same time, the number of cavity rings inside the adjustable seed and fertilizer adsorption device (2) is adjusted through a flexible air ring adjustment device to realize the adjustment of the seeding rate. The positive pressure port of the wind pressure supply mechanism (5) is connected to the seed and fertilizer delivery pipes at the front end of the seed and fertilizer movement path selection mechanism (3) through a pipe, so as to accelerate the falling speed of the seeds and fertilizers through the blowing action of the positive pressure wind. The adjustable ditching and soil covering mechanisms (6) on the front and rear sides are symmetrically designed. The working parts such as the ditching opener, soil covering device, and single leveling plate above it can select the working mode through the adjustment device on the adjustable ditching and soil covering mechanism (6). That is, when moving forward, the soil covering device of the rear adjustable ditching and soil covering mechanism (6) is lifted, and at the same time, the ditching opener and each leveling plate together form a leveling support plate to level the ground that has been covered with soil in the front. Finally, a low-power fan (71) is used to control multi-row seed and fertilizer discharging, and the working mode is reciprocating operation back and forth, and at the same time, ditching, soil covering, and leveling are integrated to achieve the purpose of reducing costs and increasing efficiency.

2. The pneumatically adjustable uniform seeding machine for Artemisia argyi seeds according to the claims is characterized in that: The support mechanism (1) includes: an adjustable seed and fertilizer adsorption device support plate (101), a first seed plate gear support shaft (12), a drive chain (13), a rear wheel (14), a first frame support plate (15), a frame support plate body (16), a first front frame support plate (17), a front wheel (18), a front axle body (19), a frame front baffle (20), a left sprocket drive shaft (21), a second front frame support plate (22), a second frame support plate (23), a right sprocket drive shaft (24), a rear baffle (25), a second seed plate gear support shaft (26), and a middle support plate (152). The frame front baffle (20), the frame support plate body (16), and the first frame support plate (15) are welded in a surrounding manner. The first frame support plate (15) and the second frame support plate (23) are horizontally welded above the welded frame. Above the frame front baffle (20), two first front frame support plates (17) and one second front frame support plate (22) are welded and fixed above the frame front baffle (20). One middle support plate (152) is flush with the first frame support plate (15) and is welded and fixed above the device. The four adjustable seed and fertilizer adsorption device support plates (101) are on the middle support plate (152) and are welded at corresponding positions. Holes are opened at fixed positions on the adjustable seed and fertilizer adsorption device support plate (101) to prevent bearings. The first seed plate gear support shaft (12) and the second seed plate gear support shaft (26) are fixed and rotatable through bearings in the middle of the two left adjustable seed and fertilizer adsorption device support plates (101) and the two right adjustable seed and fertilizer adsorption device support plates (101). Similarly, holes are opened on the frame support plate body (16) and the corresponding opposite plates for installing bearings, so that the left sprocket drive shaft (21) and the right sprocket drive shaft (24) can be fixed and rotated.

3. The pneumatically adjustable uniform seeding machine for wormwood seeds and fertilizer according to the claims is characterized in that: The adjustable seed fertilizer adsorption device (2) includes: a negative pressure air chamber (27), an Artemisia argyi seed fertilizer filling box (28), a return spring body (29), a first negative pressure port (30), a seed fertilizer carrying plate (31), a right-side fertilizer movement box (32), an air chamber effective volume adjusting bolt (33), a first fertilizer filling box body (34), a first Artemisia argyi seed filling box (35), a second Artemisia argyi seed filling box (36), a second fertilizer filling box (37), a return spring internal connection bolt (38), an air chamber effective volume flexible adjusting ring (39), a first air chamber effective volume rigid auxiliary adjusting ring (40), a left-side seed adsorption plate (42), a second air chamber effective volume rigid auxiliary adjusting ring (41), a second Artemisia argyi seed adsorption plate (43), a second fertilizer adsorption plate (44), an Artemisia argyi seed fertilizer discharge channel (45), a seed internal discharge port (46) (adsorption and transportation start end), a second Artemisia argyi seed fertilizer filling box (47). The first Artemisia argyi seed fertilizer filling box (28) and the second Artemisia argyi seed fertilizer filling box (47) are symmetrically distributed and fixed at a set position by four adjustable seed fertilizer adsorption device support plates (101). At this time, a feed box with four feed ports is fixedly connected above the two filling boxes, and two pairs are connected on the left and right: the second Artemisia argyi seed adsorption plate (43) and the second fertilizer adsorption plate (44). At this time, an air chamber effective volume flexible adjusting ring (39) is installed outside each adsorption plate, and is included by two pairs: the Artemisia argyi seed fertilizer filling box (28) and the right-side fertilizer movement box (32), and the four filling boxes are fastened in pairs by screws on the Artemisia argyi seed fertilizer filling box (28) and the second Artemisia argyi seed fertilizer filling box (47). The first air chamber effective volume rigid auxiliary adjusting ring (40) is installed inside the air chamber effective volume flexible adjusting ring (39), and holes are opened on the air chamber effective volume flexible adjusting ring (39). The return spring internal connection bolt (38) is threadedly connected with the first air chamber effective volume rigid auxiliary adjusting ring (40). The return spring body (29) is connected above the return spring internal connection bolt (38), and the end of the return spring body (29) is connected and fixed to the end of the air chamber effective volume adjusting bolt (33). The air chamber effective volume adjusting bolt (33) realizes lifting through the threaded holes opened on the two pairs of Artemisia argyi seed fertilizer filling boxes (28) and the right-side fertilizer movement box (32). Through the force transmission of the return spring body (29), the air chamber effective volume rigid auxiliary adjusting ring, etc., the opening of the effective volume flexible adjusting ring is finally realized, so as to change the effective volume of the negative pressure chamber, and finally realize the adjustment of the number of working hole rings, and finally realize the adjustment of the number of falling materials. The two pairs of adsorption plates are driven by meshing with the gears on the second seed metering disc gear support shaft (26) to transport the adsorbed seed fertilizer.

4. An air-force adjustable uniform seeder for wormwood seeds and fertilizer according to the claims, characterized in that: The seed fertilizer movement path selection mechanism (3) includes: a first feeding channel (48), a second feeding channel (49), a seed fertilizer movement path selector (50), a seed fertilizer rear-end conveying pipe (51), and a seed fertilizer front-end conveying pipe (52). The first feeding channel (48) is connected to the wormwood seed fertilizer discharge channel (45). The second feeding channel (49) is sleeved on the first feeding channel (48). The middle of the seed fertilizer movement path selector (50) has a circular hole that is coaxially fitted with the circular shaft at the center inside the seed fertilizer movement path selection mechanism (3) and can rotate around it. The upper ends of the seed fertilizer rear-end conveying pipe (51) and the seed fertilizer front-end conveying pipe (52) are respectively connected to the front and rear ends of the second feeding channel (49), and the ends are connected to the front and rear adjustable ditching and soil covering mechanism (6). By rotating the seed fertilizer movement path selector (50), the selection of the seed fertilizer for the seed fertilizer rear-end conveying pipe (51) and the seed fertilizer front-end conveying pipe (52) is realized, so that the movement direction of the granular fertilizer is consistent with the machine operation direction.

5. An air-force adjustable uniform seeder for wormwood seeds and fertilizer according to the claims, characterized in that: The transmission mechanism (4) includes: a first fertilizer adsorption disc (53), a left first meshing gear (54), a middle transmission gear (55), a left second meshing gear (56), a middle transmission upstream gear (57), a left front axle (58), a first middle transmission upstream transmission shaft (59), a bevel gear (60), a first vehicle body movement transmission shaft (61), a right front axle (62), a first speed change gear (63), a second middle transmission upstream transmission shaft (64), a second vehicle body movement transmission shaft (65), a transmission chain body (66), a rear axle (67), and an engine (68). The engine (68) is fixed to the chassis. Through the first vehicle body movement transmission shaft (61) and the right front axle (62), the power is transmitted to the front wheels, and through the first speed change gear (63) and the second vehicle body movement transmission shaft (65), the vehicle body power is transmitted to the rear end, so as to realize the forward and backward movement of the vehicle body. By driving the first middle transmission upstream transmission shaft (59) and the second middle transmission upstream transmission shaft (64) to rotate through three bevel gears (60), the two middle transmission upstream gears (57) are driven to rotate. Through the chain and the left and right two middle transmission gears (55), the force is transmitted to the first middle transmission upstream transmission shaft (59) and the second middle transmission upstream transmission shaft (64), and then the four middle transmission gears (55) are driven to rotate and mesh with the corresponding first fertilizer adsorption disc (53), the second wormwood seed adsorption disc (43), the left seed adsorption disc (42), and the second fertilizer adsorption disc (44) to drive them to rotate.

6. The pneumatically adjustable uniform seeding machine for wormwood seeds fertilizer according to the claims is characterized in that: The air pressure supply mechanism (5) includes: a first negative pressure transmitter (69), a first positive pressure transmitter (70), a fan (71), a first negative pressure three-way pipe (72), a negative pressure elbow pipe (73), a second negative pressure transmitter (74), a second positive pressure transmitter (75), a positive pressure blowing pipe (76), a second negative pressure port (77), and a negative pressure pipeline (78). The fan (71) is fixed at the corresponding position of the vehicle chassis. The negative pressure port of the fan (71) is externally connected to a pipeline, a first negative pressure three-way pipe (72), and a negative pressure elbow pipe (73). At the same time, the first negative pressure three-way pipe (72) and the negative pressure elbow pipe (73) are externally connected to the second negative pressure transmitter (74) and the first negative pressure transmitter (69) respectively, and then connected to the second negative pressure port (77) through a hose to transmit negative pressure. The positive pressure port of the fan (71) is connected to the second positive pressure transmitter (75) and the positive pressure blowing pipe (76) through a positive pressure pipeline and a positive pressure elbow pipe. The positive pressure blowing pipe (76) is connected to the rear end conveying pipe to accelerate the falling of the wormwood seeds and fertilizers, thereby reducing the blanking time.

7. An air-pressure adjustable even seeding machine for wormwood seeds and fertilizer according to the claims, characterized in that: The adjustable ditching and soil covering mechanism (6) includes: a first rear-end rotating shaft (79), a front and rear bumper (80), a second rear-end rotating shaft (81), a rear-end soil leveling single plate (82), a rear-end plow blade (83), a working mode adjusting rod (84), a soil covering disc body (85), a soil covering disc fixing shaft (86), a front-end plow blade (87), a front-end soil leveling single plate (88), a first soil covering device fixing means (89), a soil leveling single plate connecting part (90), a front-end rotating shaft (91), a second soil covering device fixing means (92), and a working mode adjusting handle (93). The front and rear bumper (80) is respectively welded and fixed to the front and rear of the machine through two connecting parts at the upper end of the front and rear bumper (80). The front-end rotating shaft (91) is fixed to the front and rear bumper (80) by connecting with the working mode adjusting rod (84). The working mode adjusting rod (84) is fixedly connected to the front-end baffle (20) and the rear-end baffle (25) of the frame, and the working mode adjusting handle (93) penetrates through the inside of the working mode adjusting rod (84). By rotating the adjusting handle, the working mode adjusting rod (84) rotates around its rotation center, thereby driving the front-end rotating shaft (91) connected to its end to rotate by a corresponding angle. The upper end of the first soil covering device fixing means (89) is matched and tightly fixed with the front part of the front-end rotating shaft (91) which is approximately a square shaft. The soil covering disc fixing shaft (86) is provided at its lower rear end. The soil covering disc fixing shaft (86) is matched and fixed with the soil covering disc body (85). Subsequently, bearings can also be installed on the soil covering disc fixing shaft (86) to realize the rolling of the soil covering disc body (85) during work. The upper end of the soil leveling single plate connecting part (90) is connected to the front-end rotating shaft (91), and the lower end is connected to the protruding part on the upper part of the front-end soil leveling single plate (88), thereby realizing the fixing of the front-end soil leveling single plate (88). The front-end plow blade (87) is fixed on the front and rear bumper (80). The front and rear adjustable ditching and soil covering mechanisms (6) are exactly the same.

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