Intelligent mountain light seed drill

Abstract

The invention relates to the technical field of agricultural sowing machinery, and discloses an intelligent mountain light and simple seeder, including a machine, on which a seeding system and a furrowing system are arranged, the seeding system comprising a centrifugal seeding device and a seeding posture leveling system, the seeding posture leveling system being used for adjusting so that the central axis of the centrifugal seeding device is always in a vertical state; the furrowing system comprising a furrowing device, the furrowing device comprising a stand and a plurality of furrowing components, the stand being arranged in parallel at the rear end of the machine, the plurality of furrowing components being arranged side by side and connected to the stand; the furrowing component comprising a furrow opener and a seed guide pipe, the furrow opener being arranged in parallel below the stand, the furrow opener comprising a sliding cutting plate, a bionic soil dividing mechanism and two tail wing plates connected in sequence, the bottom end of the seed guide pipe being fixedly arranged between the two tail wing plates, the top ends of the plurality of seed guide pipes being respectively connected to a plurality of seed outlet pipes of the centrifugal seeding device; the structure of the invention is light and simple, and is suitable for use in the special environment of planting Chinese medicinal materials under forests in hilly and mountainous areas of Yunnan Province.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural seeding machinery, and in particular to an intelligent light-weight mountain seeding machine. Background Art

[0002] Automatic seeders usually consist of three core parts: a seeding system, a furrowing system and a soil covering device. When working, the furrowing mechanism creates furrows in the field, the seeding system plants the seeds in an orderly manner in the furrows, and the soil covering device covers the seeds, thereby completing continuous seeding operations.

[0003] At present, Chinese medicinal materials sowing machines in my country are still in the research and development stage. Due to the differences in planting agronomy in various regions, the mechanization rate of Chinese medicinal materials sowing in my country is low. As for the sowing of organic Chinese medicinal materials under the forests in Yunnan Province, the existing field Chinese medicinal materials sowing machines are too large to enter the forest operations, and it is still mainly based on manual planting. The current manual planting method has extremely low mechanization efficiency of sowing and high labor costs. Since the sowing period of Chinese medicinal materials is often around the Spring Festival, communication is difficult, resulting in no one available during the sowing period, resulting in low yields, which restricts the development of the authentic forest Chinese medicinal materials industry in Yunnan Province. In order to solve the above problems, it is necessary to develop an automatic seeder specifically for the sowing environment of Chinese medicinal materials under the forests in Yunnan Province. When designing, it is necessary to comprehensively consider the special environmental impact of the sowing operation of Chinese medicinal materials under the hilly and mountainous forests in Yunnan Province. Specifically:

[0004] In terms of seeding system, existing field Chinese herbal medicine seeders usually use pneumatic pressure hole type seeding devices, which use the positive and negative air pressures generated by airflow to achieve negative pressure seed suction and positive pressure seeding. It has the advantages of low requirements for seed size, strong adaptability, and high seeding accuracy at medium and low speeds. However, it has high requirements for air pressure and high energy consumption at high speeds. When the air pressure is unstable, the missed seeding rate is high. At the same time, since the fan equipped with the pneumatic seeding device is heavy, the overall seeder is heavy, resulting in excessive compaction of the soil, affecting the emergence rate of Chinese herbal medicines, and affecting the root growth and yield of Chinese herbal medicines. It is not suitable for the light and energy-saving design requirements that need to be met in the understory operations in hilly and mountainous areas. In the selection of the seeding device structure of the automatic seeder, the centrifugal seeding device is a relatively light and energy-saving seeding device; the basic principle of the centrifugal seeding device is to generate centrifugal force through the continuous rotation of its inner cone, so that the population in the inner cone rises to the seeding layer under the action of centrifugal force, and the seeds are then discharged from a number of seeding tubes evenly distributed on the outer circumference of the seeding layer. In order to ensure the uniformity of the seeding of the centrifugal seed meter, the forces (centrifugal force, gravity, collision force with other seeds, etc.) that the seeds are subjected to when entering each seed outlet tube should be basically the same, which requires the centrifugal seed meter to always maintain its vertical posture when used; however, when used for planting in hilly and mountainous areas, most machines are operated in a sloped environment, and the uneven surface and vibration of the machine during operation affect the posture of the centrifugal seed meter, making it difficult to ensure the uniformity of its seeding. In addition, when the existing centrifugal seed meter is in operation, the number of seeds in its inner cone will gradually decrease as the seeding process progresses, and the seeding accuracy is difficult to control as the seeding process proceeds, making it difficult to achieve precise seeding.

[0005] In terms of the ditching system, the ditching mechanism of the existing seeding machine is mostly designed for sowing on large plain plots, while the plots in hilly and mountainous areas are small and the ground height is uneven. In addition, the special red soil characteristics of cultivated land in Yunnan Province, my country, make the ditching mechanism of the existing seeding machine not suitable for sowing and planting of organic Chinese medicinal materials under the forest in Yunnan Province. This is mainly reflected in the following aspects: First, in the process of cross-ridge and ridge operations under the forest in hilly and mountainous areas, due to the small area of ​​the plot, when ditching a certain plot, it is necessary to move to another ridge for operation, turn around in the field frequently, which requires frequent lifting and lowering of the height of the ditching mechanism, requiring the ditching mechanism to have the function of rapid height adjustment, and after the adjustment is completed, the position of the ditching mechanism needs to remain stable to ensure that the ditching depth and width meet the agronomic requirements. Second, the special red soil characteristics of cultivated land in Yunnan Province make the ditching mechanism of the existing seeding machine seriously stick to the soil when ditching, resulting in greater ditching resistance, making the machine energy consumption larger, and the soil adhered to the ditching device is not conducive to ensuring the requirements of groove width, depth and straightness. Third, due to the uneven ground in hilly and mountainous areas, the existing ditching mechanism has great ditching resistance during ditching operations, and it is difficult to maintain the ditching depth according to agronomic requirements. Fourth, in the ditching mechanism of the seed drill, multiple ditching devices are usually arranged side by side at equal intervals, so that multiple grooves can be opened and sown at the same time during the sowing operation to improve the operation efficiency; due to the complex understory environment in hilly and mountainous areas, the row spacing of trees is different, resulting in uneven ridge widths, and different crops and different agronomic requirements have different sowing row spacings, which requires the ditching mechanism to have an adjustable sowing row spacing function; in the existing seed drill, each ditching device on the ditching mechanism is usually fixedly installed. If the sowing row spacing is to be adjusted, the ditching mechanism needs to be replaced as a whole, or the installation position of each ditching device in the ditching mechanism needs to be adjusted in turn, and the adjustment process is extremely cumbersome.

[0006] In terms of soil covering technology, existing seed drills are usually equipped with a separate soil covering device to complete the soil covering operation, which is not conducive to the design requirements of compact and light structure of the whole machine. Due to the uneven ground in hilly plots, the installed soil covering device is easy to interfere with the raised parts of the plot, affecting the quality of trenching (for example, the soil covering device forms a support on the raised part of the plot, causing the trench opener to be suspended to a certain extent and unable to be cultivated to the set depth); on the other hand, the installed soil covering device will also increase the weight of the machine to a certain extent, causing the soil to be further compacted during the movement of the machine, further increasing the trenching resistance to a certain extent, and the compaction of the ridge surface soil by the machine will also cause the problem of low emergence rate of seedlings of crops such as Chinese medicinal materials. Summary of the invention

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an intelligent mountain lightweight seeder with a light and simple structure, good seeding uniformity, small ditching resistance and the ability to achieve natural soil covering, which is suitable for the special environment of planting Chinese medicinal materials under forests in hilly and mountainous areas of Yunnan Province.

[0008] The objective of the present invention is achieved through the following technical solutions:

[0009] The intelligent mountain light-type seeder comprises a machine, wherein the machine is provided with a seeding system and a furrowing system, wherein the seeding system comprises a centrifugal seeding device and a seeding posture leveling system, wherein the centrifugal seeding device comprises a seeding mechanism, wherein the seeding mechanism comprises a cover plate, a seeding ring, an inner cone and an outer cone, wherein the cover plate, the seeding ring and the outer cone are coaxially arranged from top to bottom and are fixedly connected in sequence, wherein the large diameter end of the outer cone is open and arranged upward, wherein the inner cone is coaxially and rotatably arranged in the outer cone, wherein the large diameter end of the inner cone is open and arranged upward, wherein the large diameter end of the inner cone is matched with the seeding ring, wherein a plurality of seeding holes are evenly distributed on the circumference of the seeding ring, wherein a plurality of seeding tubes are fixedly arranged on the cover plate, wherein one end of the plurality of seeding tubes is respectively connected with the plurality of seeding holes, wherein the centrifugal seeding device is connected with the machine via the seeding posture leveling system, and wherein the seeding posture leveling system is used for adjusting the seeding ring to maintain a horizontal state;

[0010] The furrowing system includes a furrowing device, which includes a stand and a plurality of furrowing components. The stand is arranged in parallel at the rear end of the machine, and the plurality of furrowing components are arranged side by side. The furrowing components are connected to the stand, and the furrowing components include a furrow opener and a seed guide tube. The furrow opener is arranged in parallel below the stand, and the furrow opener includes a sliding plate, a bionic soil dividing mechanism and two tail wing plates. The sliding plate is arranged at one end of the furrow opener close to the machine, and the bionic soil dividing mechanism includes two soil dividing plates. One end of the two soil dividing plates is transitionally connected to the end of the sliding plate away from the machine. The two soil dividing plates are symmetrically arranged along the central plane of the sliding plate, and the other ends of the two soil dividing plates are transitionally connected with the tail wing plate, and the tail wing plate is parallel to the sliding plate. The bottom ends of the sliding plate, the soil dividing plate and the tail wing plate have the same height, and the soil dividing plate is curved. The outer wall of the bionic soil dividing mechanism is designed to imitate the curves on both sides of the head of a yellowfin tuna. The lower part of one end of the sliding plate close to the machine is processed into an arc shape so that the top of the end is pointed. The bottom end of the seed guide tube is fixedly arranged between the two tail wing plates, and the top ends of several of the seed guide tubes are respectively connected to one end of several of the seed outlet tubes away from the seed outlet.

[0011] Specifically, it also includes a controller, and the seeding posture leveling system includes a static platform, a dynamic platform, a mounting frame, a pitch leveling drive mechanism, a roll leveling drive mechanism, and a dual-axis angle sensor; the centrifugal seed meter is fixedly installed on the mounting frame, the bottom end of the mounting frame is rotatably connected to the dynamic platform, one end of the dynamic platform is rotatably connected to one end of the static platform, the static platform is connected to the machine, and the rotating axis of the mounting frame rotating relative to the dynamic platform, the rotating axis of the dynamic platform rotating relative to the static platform, and the central axis of the centrifugal seed meter are perpendicular to each other; the pitch leveling drive mechanism is used to drive the dynamic platform to rotate relative to the static platform, and the roll leveling drive mechanism is used to drive the mounting frame to rotate relative to the dynamic platform, and the dual-axis angle sensor is fixedly installed on the mounting frame, and the pitch leveling drive mechanism, the roll leveling drive mechanism and the dual-axis angle sensor are all electrically connected to the controller.

[0012] Specifically, the pitch leveling drive mechanism includes a pitch leveling motor, a pitch leveling transmission shaft and two crank slider mechanisms, the crank slider mechanism includes a pitch leveling crank and a pitch leveling block, the two crank slider mechanisms are symmetrically arranged on both sides of the rotation axis of the mounting frame rotating relative to the moving platform; the pitch leveling transmission shaft is rotatably connected to the moving platform, the pitch leveling transmission shaft is parallel to the rotation axis of the moving platform relative to the static platform, the pitch leveling motor is used to drive the pitch leveling transmission shaft to rotate, the controller is electrically connected to the pitch leveling motor, one end of the pitch leveling crank is fixedly sleeved on the pitch leveling transmission shaft, the other end of the pitch leveling crank is rotatably connected to the pitch leveling block, the pitch leveling block is slidably connected to the static platform, and the pitch The sliding direction of the leveling block on the static platform is perpendicular to the rotation axis of the dynamic platform relative to the static platform; the roll leveling drive mechanism includes a roll leveling motor, a roll leveling transmission shaft and two gear sets; the roll leveling transmission shaft is rotatably connected to the dynamic platform, the roll leveling transmission shaft is parallel to the rotation axis of the mounting frame relative to the dynamic platform, the roll leveling motor is used to drive the roll leveling transmission shaft to rotate, the controller is electrically connected to the roll leveling motor, the gear set includes gear A, gear B and gear C meshing in sequence, the gear A is fixedly mounted on the roll leveling transmission shaft, the gear B is rotatably connected to the dynamic platform, the gear C is fixedly connected to the mounting frame, and the two gear sets are symmetrically arranged on both sides of the rotation axis of the dynamic platform relative to the static platform.

[0013] Preferably, lifting rods are fixedly provided at the four corners of the static platform, and the lifting rods are slidably connected to the machine.

[0014] Furthermore, the centrifugal seed metering device also includes a seed filling mechanism, which includes a seed box, a seed filling tube, and a seed filling amount adjusting device. The seed box is arranged above the cover plate, the top of the seed filling tube is connected to the bottom of the seed box, a seed filling hole is opened in the center of the cover plate, the bottom end of the seed filling tube is connected to the seed filling hole, and the seed filling amount adjusting device is used to adjust the size of the flow channel in the seed filling tube; a pressure film sensor is provided on the inner wall of the seed metering ring, and the seed metering mechanism also includes a seed metering motor, which is used to drive the inner cone to rotate; the seed metering motor, the pressure film sensor and the seed filling amount adjusting device are all electrically connected to the controller.

[0015] Furthermore, the center line of the seed outlet tube is a quasi-parallel curve, and the design curve of the center line of the seed outlet tube is designed to simulate the natural movement trajectory of the seeds when they fly out of the seed outlet hole only under the action of gravity.

[0016] Furthermore, the trenching assembly also includes an adaptive mechanism, which includes a connecting column, a spring, an upper connecting plate, a lower connecting plate and two connecting rods, the upper connecting plate is parallel to the lower connecting plate, the two connecting rods are parallel to each other, the two ends of the connecting rods are respectively rotatably connected to the upper connecting plate and the lower connecting plate, the upper connecting plate is connected to the stand, the bottom surface of the lower connecting plate is fixedly connected to one end of the connecting column, and the other end of the connecting column is fixedly connected to the top surface of the trench opener; one end of the spring is connected to an end of the lower connecting plate close to the machine, and the other end of the spring is connected to an end of the upper connecting plate away from the machine.

[0017] Furthermore, the ditching device also includes a plurality of sliding units, the sliding units include a ditching slider, a first connecting rod and a second connecting rod, the top surface of the ditching slider is provided with a swivel pin, the middle part of the first connecting rod and the middle part of the second connecting rod are rotatably connected to the ditching slider through the swivel pin; the plurality of sliding units are arranged side by side on the frame, the ditching slider is slidably connected to the frame, and among two adjacent sliding units, the first connecting rod end of the previous sliding unit is rotatably connected to the second connecting rod end of the next sliding unit, and the second connecting rod end of the previous sliding unit is rotatably connected to the first connecting rod end of the next sliding unit; the plurality of ditching assemblies are respectively connected to the plurality of ditching sliders.

[0018] Furthermore, the trenching system also includes a lifting device, which includes a telescopic rod, a triangular connecting plate and a balancing link. One end of the telescopic rod is rotatably connected to the tool, and the three corner ends of the triangular connecting plate are respectively rotatably connected to the other end of the telescopic rod, the tool and the frame. Both ends of the balancing link are respectively rotatably connected to the tool and the frame. The balancing link, the tool, the triangular connecting plate and the frame form a parallelogram mechanism.

[0019] Furthermore, the lifting device also includes two supporting gas springs and two anti-sway gas springs, and the two ends of the supporting gas springs are rotatably connected to the machine and the frame respectively, and the two anti-sway gas springs are symmetrically arranged on both sides of the triangular connecting plate, and the distance between the two ends of the supporting gas springs connected to the machine is equal to the distance between the two ends of the supporting gas springs connected to the frame, and the two ends of the anti-sway gas springs are rotatably connected to the machine and the frame respectively, and the two anti-sway gas springs are symmetrically arranged on both sides of the triangular connecting plate, and the distance between the two ends of the anti-sway gas springs connected to the machine is greater than the distance between the two ends of the anti-sway gas springs connected to the frame.

[0020] The beneficial effects of the present invention are:

[0021] The intelligent mountain light-type seeder includes a machine, on which a seeding system and a furrowing system are arranged. The seeding system includes a centrifugal seeding device and a seeding posture leveling system. The centrifugal seeding device is connected to the machine through the seeding posture leveling system. The seeding posture leveling system is used to adjust so that the central axis of the centrifugal seeding device is always in a vertical state; the furrowing system includes a furrowing device, which includes a stand and a plurality of furrowing assemblies. The stand is arranged in parallel at the rear end of the machine, and the plurality of furrowing assemblies are arranged side by side and connected to the stand; the furrowing assembly includes a furrow opener and a seed guide pipe. The furrow opener is arranged in parallel below the stand, and the furrow opener includes a sliding cutting plate, a bionic soil dividing mechanism and two tail wing plates connected in sequence. The bottom end of the seed guide pipe is fixedly arranged between the two tail wing plates, and the top ends of the plurality of seed guide pipes are respectively connected to a plurality of seed outlet pipes of the centrifugal seeding device. When the intelligent mountain light seeder is in use, a furrow opener is used to open a furrow. At the same time, the centrifugal seeder is used to evenly and orderly discharge the seeds. The discharged seeds are guided by the seed guide tube and fall between the two tail wing plates of the furrow opener. They can fall accurately in the furrow. When the furrow opener passes the seed position, natural soil covering can be achieved, thereby completing the full process of automatic seeding operations.

[0022] This intelligent mountain lightweight seeder adopts a lightweight and energy-saving structural design, which effectively reduces the weight of the equipment and avoids excessive compaction of the soil, which affects the germination rate of Chinese medicinal materials and the growth and yield of their rhizomes. It is equipped with a seeding posture leveling system, which can effectively ensure the uniformity of the centrifugal seeding device when used for sowing in hilly and mountainous areas. The bionic soil-dividing mechanism in the furrow opener and the arc design of the front end of the sliding cutting plate can effectively reduce the furrowing resistance, achieve the purpose of energy saving, reduce energy consumption and the shaking caused by furrowing resistance, and ensure that the furrowing width, depth and straightness meet the agronomic requirements.

[0023] In the specific design of the seeding system, the static platform is connected to the machine through a lifting rod, which can realize the lifting function of the static platform to cope with certain working environments blocked by trees, shade sheds, etc., and improve the ability to adapt to the environment; a controller is provided, and a pressure film sensor is provided in the centrifugal seeding device to monitor in real time the collision force value generated by the collision between the seed population and the inner wall of the seeding ring during its operation. The centrifugal seeding device also includes a seed filling amount adjustment device to adjust the size of the flow channel in the seed filling tube. The centrifugal seeding device also includes a seeding motor. The seeding motor, the pressure film sensor and the seed filling amount adjustment device are all electrically connected to the controller to realize seed filling. The dynamic regulation of the amount at different seeding speeds improves the seeding uniformity, stability and ability of the centrifugal seed meter to adapt to a variety of crops and complex environments; the center line of the seed tube is a quasi-parallel curve, and its design curve simulates the natural movement trajectory of the seeds when they fly out of the seed hole under the action of gravity only, which can reduce the collision of seeds in the seed tube, reduce the damage to the seed flow, improve the orderliness and implantation uniformity of the seeds, and at the same time avoid the seeds in the seed tube, especially in the seed hole position at the end of the seed tube Stay, so as to avoid unnecessary mutual collision of seeds at this position to affect the monitoring force value of the pressure film sensor.

[0024] In the specific design of the trenching system, an adaptive mechanism is provided, which has the function of imitating terrain and is suitable for trenching operations in hilly areas with undulating terrain. The height of the trench opener can be adaptively adjusted according to the terrain conditions during the trenching process, thereby reducing the trenching resistance while ensuring the trenching depth requirement; a number of sliding units are provided and connected through a scissor structure, which can realize the rapid adjustment of the trenching row spacing at equal intervals and is easy to operate; the lifting device provided can conveniently and quickly adjust the overall height of the trench opener, so that the machine can meet the operating requirements of hilly and mountainous areas that require frequent lifting and lowering of the trenching mechanism height.

[0025] Overall, the intelligent mountain lightweight seeder has a light structure, good seeding uniformity, small furrowing resistance and natural soil covering, sensitive furrow opener lifting and adjustment, and easy furrowing row spacing adjustment. It is suitable for the special terrain environment and special soil conditions of Chinese medicinal materials cultivation in the hilly and mountainous areas of Yunnan Province. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the intelligent mountain light-type seed drill of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the seeding system in the present invention;

[0028] Figure 3 for Figure 2 The structural schematic diagram of the pitch and leveling drive mechanism in the seeding system shown;

[0029] Figure 4 for Figure 2 The structural diagram of the rolling leveling drive mechanism in the seeding system shown;

[0030] Figure 5 for Figure 2 A schematic diagram of the structure of the locking mechanism in the seeding system shown;

[0031] Figure 6 for Figure 2 A schematic diagram of the internal structure of a centrifugal seed metering device in the seed metering system shown;

[0032] Figure 7 for Figure 6 An exploded schematic diagram of a seed-metering mechanism in a centrifugal seed-metering device is shown;

[0033] Figure 8 for Figure 6 The structural schematic diagram of the seed filling mechanism in the centrifugal seed metering device shown;

[0034] Fig. 9 for Figure 6 The schematic diagram of the position of the space coordinate system in the horizontal plane established when the centrifugal seed metering device is designed to produce the seed tube curve;

[0035] Fig.10 for Figure 6 The schematic diagram of the analysis of the horizontal movement trajectory of seeds when the centrifugal seed metering device is designed with a seed tube curve;

[0036] Fig.11 Figure 6 The schematic diagram of the position of the space coordinate system in the vertical plane established when the centrifugal seed metering device is designed to produce the seed tube curve;

[0037] Fig.12 for Figure 6 The schematic diagram of the analysis of the vertical movement trajectory of seeds when the centrifugal seed metering device is designed with a seed tube curve is shown;

[0038] Fig.13 It is a structural schematic diagram of the trenching system in the present invention;

[0039] Fig.14 for Fig.13 The schematic diagram of the structure of the lifting device in the trenching system shown Figure 1 ;

[0040] Fig.15 for Fig.13 The schematic diagram of the structure of the lifting device in the trenching system shown Figure 2 ;

[0041] Fig.16 for Fig.13 A schematic diagram of the assembly structure of the sliding unit on the stand in the trenching system shown;

[0042] Fig.17 for Fig.13 A schematic diagram of the structure of the trenching assembly in the trenching system shown;

[0043] Fig.18 for Fig.17 A schematic diagram of the structure of a furrow opener in the furrow opening assembly shown;

[0044] Fig.19 for Fig.18 A schematic bottom view of the structure of the furrow opener shown;

[0045] Fig. 20 for Fig.17 A schematic diagram of the structure of the adaptive mechanism in the trenching assembly shown;

[0046] In the figure, 100-machine, 200-seedling system, 210-seedling mechanism, 211-cover plate, 212-seedling ring, 213-inner cone, 214-outer cone, 215-seedling hole, 216-seedling tube, 217-seedling motor, 218-cone, 220-seedling mechanism, 221-seed box, 222-seedling tube, 223-seedling motor, 224-seedling screw rod, 225-seedling slider, 226-seedling Baffle, 230-static platform, 231-dynamic platform, 232-mounting frame, 233-dual-axis angle sensor, 234-lifting rod, 240-pitch leveling drive mechanism, 241-pitch leveling motor, 242-pitch leveling transmission shaft, 243 pitch leveling crank, 244-pitch leveling block, 250-roll leveling drive mechanism, 251-roll leveling motor, 252-roll leveling transmission shaft, 253-gear A, 254-gear B, 255-gear C, 261-locking rocker, 262-locking connecting rod, 263-locking slide bar, 264-locking slide block, 265-locking push rod, 300-ditching system, 310-ditching device, 311-sliding plate, 312-soil dividing plate, 313-tail plate, 320-adaptive mechanism, 321-connecting column, 322-spring, 323-lower connecting plate, 324-upper connecting plate, 325 -connecting rod, 326-installing hole, 330-seed guide tube, 341-stand, 342-ditching slider, 343-first connecting rod, 344-second connecting rod, 345-turn pin, 346-left-handed thread section, 347-right-handed thread section, 348-spacing adjustment motor, 350-lifting device, 351-telescopic rod, 352-triangular connecting plate, 353-balancing connecting rod, 354-support gas spring, 355-anti-sway gas spring. DETAILED DESCRIPTION

[0047] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0048] like Figures 1 to 20As shown, the intelligent mountain light-type seed drill includes a machine 100 , on which a seeding system 200 and a furrowing system 300 are arranged.

[0049] The seeding system 200 includes a centrifugal seeding device and a seeding posture leveling system. Figure 2 , Figures 6 to 8 As shown, the centrifugal seed metering device includes a seed metering mechanism 210 and a seed filling mechanism 220. The seed metering mechanism 210 includes a cover plate 211, a seed metering ring 212, an inner cone 213 and an outer cone 214. The cover plate 211, the seed metering ring 212 and the outer cone 214 are coaxially arranged from top to bottom (the coaxial axis is the central axis of the centrifugal seed metering device) and are fixedly connected in sequence. The large diameter end of the outer cone 214 is open and arranged upward; the inner cone 213 is coaxially rotatably arranged in the outer cone 214, and the large diameter end of the inner cone 213 is open and arranged upward. The large diameter end of the inner cone 213 is adapted to the bottom end of the seed metering ring 212, so that a seed metering cavity is formed between the inner cavity of the inner cone 213, the inner cavity of the seed metering ring 212 and the cover plate 211. A plurality of seed outlet holes 215 are evenly distributed on the circumference of the seed discharging ring 212 , and a plurality of seed outlet tubes 216 are fixedly provided on the cover plate 211 . One ends of the plurality of seed outlet tubes 216 are respectively connected to the plurality of seed outlet holes 215 .

[0050] During seeding, as the inner cone 213 continues to operate, the seeds in the seeding cavity are thrown around to the inner wall of the inner cone 213 under the action of centrifugal force, and then the seed flow spirals up along the inner wall of the inner cone 213 to the seeding layer (the position of the seeding ring 212). When the seed flow leaves the upper end of the inner cone 213, it still has inertia, and the seeds at the seeding hole 215 enter the seeding tube 216 and are discharged, thereby realizing the centrifugal seeding process; other seeds fall into the seeding cavity after colliding with the inner wall of the seeding ring 212, and enter the next cycle with the rotation of the inner cone 213. The selection of this centrifugal seeding device is in line with the design of light and simple structure and energy saving of the whole machine, so as to avoid excessive compaction of the soil caused by excessive weight, affecting the emergence rate of Chinese medicinal materials, and affecting the growth and yield of the roots and stems of Chinese medicinal materials.

[0051] The centrifugal seed meter is connected to the machine 100 through a seeding posture leveling system. The seeding posture leveling system is used to adjust the seed ring 212 to maintain a horizontal state when the machine 100 is traveling in a slope environment, an uneven ground environment, or when vibration occurs during driving. The seeds inside the machine are subjected to basically the same force when entering each seed outlet tube 216 under the drive of centrifugal force, which can effectively ensure the uniformity of seeding of the centrifugal seed meter when used for sowing in hilly and mountainous areas.

[0052] like Fig.13As shown, the furrowing system 300 includes a furrowing device, which includes a stand 341 and a plurality of furrowing components. The stand 341 is arranged in parallel at the rear end of the machine 100, and the plurality of furrowing components are arranged side by side at equal intervals. The furrowing components are connected to the stand 341. The furrowing components include a furrow opener 310 and a seed guide tube 330. The furrow opener 310 is arranged in parallel below the stand 341. Fig.13 , Figures 17 to 19 As shown, the furrow opener 310 includes a sliding plate 311, a bionic soil-dividing mechanism and two tail wing plates 313. The sliding plate 311 is arranged at one end of the furrow opener 310 close to the machine 100, and the bionic soil-dividing mechanism includes two soil-dividing plates 312. One end of the two soil-dividing plates 312 is transitionally connected to the end of the sliding plate 311 away from the machine 100. The two soil-dividing plates 312 are symmetrically arranged along the central plane of the sliding plate 311. The other ends of the two soil-dividing plates 312 are transitionally connected to the tail wing plates 313. The tail wing plates 313 are parallel to the sliding plate 311, and the bottom ends of the sliding plate 311, the soil-dividing plates 312 and the tail wing plates 313 are at the same height. The bottom end of the seed guide tube 330 is fixedly arranged between the two tail wing plates 313, and the top ends of the plurality of seed guide tubes 330 are respectively connected to the ends of the plurality of seed outlet tubes 216 in the centrifugal seed metering device away from the seed outlet 215.

[0053] During the furrowing operation, the bottom end of the furrow opener 310 is inserted into the soil at a depth required by agronomy, and then the furrow opener 310 moves forward under the traction of the stand 341 moving forward with the tool 100, completing the furrowing operation. In this process, the sliding plate 311 is used to break the soil to form a furrow, and the soil dividing plate 312 is used to widen the furrow. The seeds discharged by the centrifugal seeding device fall into the furrow after being guided by the seed guide tube 330. In this process, the reclaimed soil accumulates on the outside of the two tail wing plates 313. After the furrow opener 310 passes the position of the fallen seeds, part of the soil can be backfilled into the furrow to achieve natural covering, thereby completing the entire sowing process.

[0054] The lower part of the end of the sliding plate 311 near the machine 100 is processed into an arc shape so that the top of the end is pointed. The lower arc shape is similar to the edge of an arc knife. It is similar to cutting the soil during the trenching process, which is beneficial to reducing resistance. On the longitudinal section of the soil at the reclamation position, as the sliding plate 311 moves forward to its tip, the reclaimed soil is discharged from top to bottom to both sides of the trench, which is also beneficial to reducing the soil discharge resistance. The soil dividing plate 312 is designed to be a curved surface, so that the end of the bionic soil dividing mechanism near the sliding plate 311 is pointed, and the outer wall of the bionic soil dividing mechanism is designed to imitate the curves on both sides of the head of the yellowfin tuna. According to relevant data, tuna is the only large fish that can swim long distances and at a fast speed. Among them, the yellowfin tuna is the largest tuna. It is an oceanic highly migratory fish species with great high-speed endurance, which is closely related to its body structure. The front 2 / 3 of the yellowfin tuna's body is basically rigid. After millions of years of evolution, typical streamlined curves have been formed on both sides of the yellowfin tuna's head, which can effectively reduce the resistance of seawater when it moves forward quickly. By extracting the curves on both sides of the yellowfin tuna's head to design the surface of the soil dividing plate 312, the bionic soil dividing mechanism is made to mimic the shape of the yellowfin tuna's head, which can effectively reduce the resistance to forward movement. During implementation, the furrow opener 310 is integrally formed and made of ultra-high molecular polyethylene material with unique properties such as high strength, high impact resistance, high wear resistance and self-lubrication, which further has a viscosity-reducing effect.

[0055] According to the above, the intelligent mountain light and simple seeder opens a groove through the furrow opener 310. While opening the furrow, the centrifugal seeding device evenly and orderly discharges the seeds. The discharged seeds are guided by the seed guide tube 330 and fall between the two tail wing plates 313 of the furrow opener 310, and can fall accurately in the furrow. When the furrow opener 310 passes the seed position, natural soil covering can be achieved, thereby completing the full process of automatic sowing operation. The intelligent mountain light and simple seeder adopts a light and energy-saving structural design, which effectively reduces the weight of the equipment, avoids causing excessive compaction of the soil, affects the emergence rate of Chinese medicinal materials, and affects the root growth and yield of Chinese medicinal materials; a seeding posture leveling system is provided, which can effectively ensure the uniformity of the centrifugal seeding device when applied to hilly and mountainous sowing; the bionic soil dividing mechanism set in the furrow opener 310 and the arc design of the front end of the sliding cutting plate 311 can effectively reduce the furrowing resistance, achieve the purpose of energy saving, reduce energy consumption and shaking caused by furrowing resistance, and ensure that the furrowing width and straightness meet agronomic requirements. Overall, this intelligent mountain lightweight seeder is suitable for the special terrain environment and special soil conditions of Chinese medicinal materials planting in the hilly and mountainous areas of Yunnan Province.

[0056] Specifically, Figures 2 to 5As shown, the intelligent mountain light seeding machine also includes a controller, and the aforementioned seeding posture leveling system includes a static platform 230, a dynamic platform 231, a mounting frame 232, a pitch leveling drive mechanism 240, a roll leveling drive mechanism 250, a dual-axis angle sensor 233 and a controller. The aforementioned centrifugal seeding device is fixedly mounted on the mounting frame 232, the bottom end of the mounting frame 232 is rotatably connected to the dynamic platform 231, one end of the dynamic platform 231 is rotatably connected to one end of the static platform 230, and the rotation axis of the mounting frame 232 relative to the dynamic platform 231, the rotation axis of the dynamic platform 231 relative to the static platform 230, and the central axis of the centrifugal seeding device are perpendicular to each other. The pitch leveling drive mechanism 240 is used to drive the dynamic platform 231 to rotate relative to the static platform 230, and the roll leveling drive mechanism 250 is used to drive the mounting frame 232 to rotate relative to the dynamic platform 231. The dual-axis angle sensor 233 is fixedly mounted on the mounting frame 232 , and the pitch leveling driving mechanism 240 , the roll leveling driving mechanism 250 and the dual-axis angle sensor 233 are all electrically connected to the controller.

[0057] When the machine 100 is traveling in a slope environment, an uneven ground environment, or when vibration occurs during driving, the dual-axis angle sensor 233 can monitor the posture of the mounting frame 232 in real time, and transmit the posture data to the controller, which controls the pitch leveling drive mechanism 240 and the roll leveling drive mechanism 250 in real time to adjust the posture of the mounting frame 232. Since the rotation axis of the mounting frame 232 relative to the moving platform 231, the rotation axis of the moving platform 231 relative to the static platform 230, and the central axis of the centrifugal seed meter are perpendicular to each other, when the centrifugal seed meter has a tendency to tilt due to factors such as terrain conditions or vibration, the central axis of the centrifugal seed meter can always be kept in a vertical state under the real-time adjustment of the pitch leveling drive mechanism 240 and the roll leveling drive mechanism 250, so as to achieve the aforementioned keeping the seed ring 212 of the centrifugal seed meter in a horizontal state.

[0058] In the specific design of the seeding system 200:

[0059] like Figure 3As shown, the pitch leveling drive mechanism 30 includes a pitch leveling motor 241, a pitch leveling transmission shaft 242 and two crank slider mechanisms. The pitch leveling transmission shaft 242 is rotatably connected to the moving platform 231, and the pitch leveling transmission shaft 242 is parallel to the rotation axis of the moving platform 231 relative to the static platform 230. The pitch leveling motor 241 is used to drive the pitch leveling transmission shaft 242 to rotate, and the controller is electrically connected to the pitch leveling motor 241. The above-mentioned crank slider mechanism includes a pitch leveling crank 243 and a pitch leveling slider 244, one end of the pitch leveling crank 243 is fixedly sleeved on the pitch leveling transmission shaft 242, and the other end of the pitch leveling crank 243 is rotatably connected to the pitch leveling slider 244, and the pitch leveling slider 244 is slidably connected to the static platform 230, and the sliding direction of the pitch leveling slider 244 on the static platform 230 is perpendicular to the rotation axis of the moving platform 231 relative to the static platform 230. When the dual-axis angle sensor 233 detects that the mounting frame 232 has an angle deflection in the pitch direction, the controller controls the pitch leveling motor 241 to start, driving the pitch leveling transmission shaft 242 to rotate, thereby causing the pitch leveling crank 243 sleeved on the pitch leveling transmission shaft 242 to swing, and driving the pitch leveling block 244 to slide on the static platform 230. In this process, the pitch leveling crank 243, the static platform 230 and the dynamic platform 231 form a triangular support structure, and as the pitch leveling crank 243 swings, the angle between the static platform 230 and the dynamic platform 231 can be adjusted, thereby achieving the adjustment of the pitch angle of the mounting frame 232, i.e., the centrifugal seed metering device 2; at the same time, since the triangular support structure is formed in this process, a relatively stable support can be obtained, reducing the torque load of the pitch leveling motor 241, which is conducive to improving the stability of the mechanism and ensuring accuracy in real-time adjustment. In specific implementation, the axis of the rotating shaft connecting the moving platform 31 and the static platform 30 is located directly below the overall center of gravity of the moving platform 31 (including all components such as the pitch leveling motor 41, the roll leveling drive mechanism 60, the mounting frame 32, the centrifugal seed metering device 2, etc. installed on the moving platform 31) to further reduce the torque load of the pitch leveling motor 41 and improve the stability and accuracy of the adjustment process. Two crank slider mechanisms are provided, and the two crank slider mechanisms are symmetrically arranged on both sides of the rotating shaft of the mounting frame 232 rotating relative to the moving platform 231. The two crank slider mechanisms act synchronously, which is further conducive to ensuring the accuracy of the adjustment process and the stability of the structure after adjustment.

[0060] like Figure 4As shown, the roll leveling drive mechanism 250 includes a roll leveling motor 251, a roll leveling transmission shaft 252 and two gear sets. The roll leveling transmission shaft 252 is rotatably connected to the moving platform 231, and the roll leveling transmission shaft 252 is parallel to the rotation axis of the mounting frame 232 relative to the moving platform 231. The roll leveling motor 251 is used to drive the roll leveling transmission shaft 252 to rotate, and the controller is electrically connected to the roll leveling motor 251. The gear set includes a gear A253, a gear B254 and a gear C255 that mesh in sequence. The gear A253 is fixedly sleeved on the roll leveling transmission shaft 252, the gear B254 is rotatably connected to the moving platform 231, and the gear C255 is fixedly connected to the mounting frame 232. The two gear sets are symmetrically arranged on both sides of the rotation axis of the moving platform 231 relative to the static platform 230. When the dual-axis angle sensor 233 detects that the mounting frame 232 has an angle deflection in the rolling direction, the controller controls the rolling leveling motor 251 to start, driving the rolling leveling transmission shaft 252 and the gear A253 to rotate. Under the meshing action, the gears B254 and C255 rotate together, thereby realizing the adjustment of the rolling angle of the mounting frame 232, i.e., the centrifugal seed metering device 2. Similarly, in the specific implementation, the axis of the rotating shaft connecting the mounting frame 32 and the moving platform 31 is located directly below the overall center position of the mounting frame 32 (including all components such as the centrifugal seed metering device 2 installed on the mounting frame 32) to reduce the torque load of the rolling leveling motor 51 and improve the stability and accuracy of the adjustment process; setting two sets of gear sets and setting them symmetrically is conducive to ensuring the stability and accuracy of the adjustment process.

[0061] like Figure 5As shown, the seeding system 200 is also provided with a locking mechanism, which includes a locking push rod 265, a locking slider 264, and a locking swing rod 261. The middle part of the locking swing rod 261 is rotatably connected to the moving platform 231, and both ends of the locking swing rod 261 are rotatably connected to the locking link 262, and the other ends of the two locking links 262 are rotatably connected to the locking slide rod 263, and the locking slide rod 263 is slidably connected to the moving platform 231. The locking slide rod 264 is fixedly connected to one of the locking slide rods, and the locking push rod 265 is used to push the locking slide rod 264 to slide. The locking push rod 265 can be an electric push rod, which can drive the locking slide rod 264 and the locking slide rod 263 connected thereto to slide when it is working, and then drive the locking swing rod 261 to rotate through the locking link 262, so that the other locking slide rod 263 slides synchronously under the drive of the other locking link 262, that is, when the locking push rod 265 is working, it can simultaneously drive the two fixed slide rods 63 to slide in opposite directions. Two locking holes are fixedly provided on the static platform 230, and the ends of the two locking slide bars 263 away from the locking link 262 are respectively matched with the two locking holes, and the locking push rod 265 is electrically connected to the controller. When the machine is transported and the pitch angle does not need to be adjusted, the ends of the two locking slide bars 263 can be respectively inserted into the two locking holes under the control of the controller, thereby realizing the automatic locking function, so as to reduce the static load of the pitch leveling motor 241 in this application environment and improve the stability and automation degree of the machine.

[0062] like Figure 2 As shown, lifting rods 234 are fixedly provided at the four corners of the static platform 230, and the lifting rods 234 are slidably connected to the machine 100. The lifting function of the static platform 230 can be realized by sliding the lifting rods 234 to cope with certain working environments blocked by trees, shade sheds, etc., and improve the environmental adaptability.

[0063] like Figures 6 to 8 As shown, the aforementioned centrifugal seed metering device further includes a seed filling mechanism 220, which includes a seed box 221 and a seed filling tube 222. The seed box 221 is arranged above the cover plate 211, and the top of the seed filling tube 222 is connected to the bottom of the seed box 221. A seed filling hole is provided in the center of the cover plate 211, and the bottom of the seed filling tube 222 is connected to the seed filling hole. The seed box 221 is used to store seeds, and the seeds stored therein can fall into the seeding cavity of the seed metering mechanism 210 through the seed filling tube 222 during the sowing operation.

[0064] Furthermore, a pressure film sensor is provided on the inner wall of the seeding ring 212, which can monitor in real time the collision force value generated by the collision between the seed population and the inner wall of the seeding ring 212 during the operation of the centrifugal seeding device; a seed filling amount adjustment device is also provided in the seed filling mechanism 220, and the seed filling amount adjustment device can adjust the size of the flow channel in the seed filling tube 222. The pressure film sensor and the seed filling amount adjustment device are both electrically connected to the controller, and the collision force value data monitored by the pressure film sensor is fed back to the controller in real time, and the controller controls the seed filling amount adjustment device according to the set value. When in use, the seeding speed (the speed of the inner cone 213) and the corresponding seed filling amount at the speed are first set, that is, the theoretical pressure value of the pressure film sensor during the working process is set, and the collision force value detected in real time by the pressure film sensor is compared with the set theoretical value. When the detected collision force value is less than the theoretical value, the controller controls the seed filling amount adjustment device to work, increase the flow channel in the seed filling tube 222, and increase the seed filling speed from the seed box 221 to the seeding cavity. The seed filling speed is greater than the seeding speed, which will increase the seeds in the seeding cavity. At the same time, more seeds act on the pressure film sensor to increase the collision force value detected by it until the collision force value increases to the set theoretical value; conversely, when the detected collision force value is greater than the theoretical value, the controller controls the seed filling amount adjustment device to work, so that the flow channel in the seed filling tube 222 becomes smaller, and the seed filling speed from the seed box 221 to the seeding cavity is reduced, thereby realizing dynamic regulation, so that the seed filling amount is relatively constant at the set seeding speed, and the seeding is more uniform.

[0065] It should be noted that the collision force value monitored by the pressure film sensor is the sum of the centrifugal forces of the seeds colliding with the pressure film sensor at the same time. The detected collision force value reflects the seed density of the centrifugal movement to the seeding layer area at the same speed, but the collision force value is directly related to the seeding speed. It should be understood that the relative constancy of the above-mentioned seed filling amount does not mean that the seed filling speed is the same as the seeding speed so that the number of seeds in the seeding cavity is always constant. If the seeding speed can always remain unchanged, the constant number of seeds in the seeding cavity can ensure uniform seeding. However, in actual applications, the seeding speed cannot remain unchanged. Depending on the working conditions, the seeding speed will vary within a certain range. When the seeding speed changes, the centrifugal force will also change. Even if the number of seeds in the seeding cavity is constant, uniform seeding cannot be guaranteed.

[0066] During implementation, the seeding mechanism 210 also includes a seeding motor 217, which is used to drive the inner cone 213 to rotate. The rotation speed of the seeding motor 217 is the above-mentioned seeding speed. The seeding motor 217 is electrically connected to the controller, and can monitor the seeding speed in real time, and dynamically set different aforementioned theoretical pressure values ​​according to the different monitored seeding speeds, thereby realizing dynamic regulation of the seed filling amount at different seeding speeds, so as to improve the seeding uniformity, stability and ability of the centrifugal seeding device to adapt to a variety of crops and complex environments.

[0067] When implementing it, Figure 8 As shown, the aforementioned seed filling amount adjustment device includes a seed filling motor 223, a seed filling screw 224, a seed filling slider 225 and a seed filling baffle 226. The seed filling screw 224 is rotatably connected to the outer wall of the seed box 221, the seed filling slider 225 is slidably connected to the outer wall of the seed box 221, and the seed filling slider 225 is threadedly connected to the seed filling screw 224, which constitutes a screw nut mechanism. When the seed filling screw 224 rotates, it can drive the seed filling slider 225 to slide. One end of the seed filling baffle 226 passes through the side wall of the seed filling tube 222 and is slidably connected to the seed filling tube 222, and the other end of the seed filling baffle 226 is fixedly connected to the seed filling slider 225. The seed filling motor 223 is electrically connected to the controller. Under the control of the controller, the seed filling motor 223 can drive the seed filling screw rod 224 to rotate, and then drive the seed filling baffle 226 to slide through the seed filling slider 225 to adjust the length of one end of the seed filling baffle 226 extending into the seed filling tube 222, thereby realizing the aforementioned adjustment of the size of the flow channel in the seed filling tube 222.

[0068] like Figure 6 , Figure 7 As shown, the seeding mechanism 210 also includes a cone 218, which is coaxially arranged in the inner cone 213, and the large diameter end of the cone 218 is fixedly connected to the small diameter end of the inner cone 213. Since the central area of ​​the inner cone 213 has a relatively small rotational centrifugal force, seeds are easily accumulated in the central area; the cone 218 occupies the central area of ​​the inner cone 213, and the cone top of the cone 218 is arranged opposite to the seed filling hole of the cover plate 211, which can guide the fallen seeds to spread rapidly to the surroundings, and after obtaining a relatively large centrifugal force, they quickly spirally rise along the inner wall of the inner cone 213 to the seeding layer (the position of the seeding ring 212) to complete the seeding process, which can avoid accumulation and reduce the occurrence of seed breakage caused by the interaction force of seeds in the inner cone 213.

[0069] On the seeding ring 212, the seeding hole 215 is designed to be a round hole, and its shape and size are adapted to the shape and size of the Chinese medicinal material seeds to be seeded, so that only one Chinese medicinal material seed can be discharged from the seeding hole 215 at the same time. Different seeding rings 212 can be replaced during application to be suitable for Chinese medicinal material seeds of different types and sizes.

[0070] Furthermore, the center line of the seed tube 216 is a quasi-parabolic curve, and the design curve of the center line of the seed tube 216 is designed to simulate the natural movement trajectory of the seeds under the action of gravity when they fly out of the seed hole 215, so as to reduce the collision of the seeds in the seed tube 216, reduce the damage to the seed flow, and improve the orderliness and implantation uniformity of the seeds; at the same time, avoid the seeds in the seed tube 216, especially in the position of the seed hole 215 at the end of the seed tube 216. Avoid the seeds from being retained in the seed tube 216, especially in the position of the seed hole 215 at the end of the seed tube 216, so as to avoid unnecessary mutual collisions between the seeds at this position and affect the monitoring force value of the pressure film sensor. Specifically, according to the dynamic analysis, as the inner cone 213 continues to rotate, the seeds in the inner cone 213 move to the seed row layer and naturally fly out of the seed hole 215, and the movement trajectory of the seeds is a quasi-parabolic curve, which is a synthesis of horizontal movement and vertical movement. In the horizontal direction, due to the interaction between seeds in the population and the collision between the population and the seed metering device, the speed and angle of the seeds when they fly out of the seed hole 215 are changed. When the seeds fly out of the seed hole 215, they are not along the tangent direction of the seed ring 212, but there is a certain angle. The horizontal speed and angle cannot be calculated, and the horizontal motion trajectory needs to be determined by discrete element simulation analysis; in the vertical direction, the seeds are only affected by their own gravity after leaving the seed hole, and the vertical motion trajectory can be calculated. The above-mentioned horizontal motion trajectory and vertical motion trajectory are synthesized to obtain the natural flight trajectory of the seeds after they fly out of the seed hole 15 under the action of their own weight. Designing the seed tube 216 with this synthetic trajectory as the design curve can reduce the collision or retention of seeds in the seed tube 216.

[0071] like Figures 9 to 12 As shown, when designing the seeding tube 216, a seeding device with a radius of the seeding ring 212 of 92 mm, a seeding rotation speed of 120 r / min-200 r / min, and 14 seeding tubes 216 simultaneously seeding is designed as an example.

[0072] By using EDEM discrete element simulation software, the seeding speed of the seeding device is set to 120r / min, 160r / min and 200r / min, and the motion trajectory of the seeds after leaving the seeding hole 215 is analyzed respectively, and it is found that the seeds perform a quasi-parallel motion after leaving the seeding hole 215. Among them, at the three speeds of 120r / min, 160r / min and 200r / min, the angles β between the plane where the parallel motion is located and the plane where the center axis of the seeding device and the center of the seeding hole 215 on the seeding ring are located are 15.6°, 18.5° and 20.4° respectively. The comprehensive average value is taken to determine that at the speed range of 120r / min-200r / min, the angle β between the plane where the parallel motion is located and the plane where the center axis of the seeding device and the center of the seeding hole 215 on the seeding ring are located is 18.17°.

[0073] Since the theoretically calculated speed of the seeds when leaving the seed hole 215 does not take into account the interaction between the seed population and the seed ring 212 and the interaction between the seeds, resulting in kinetic energy loss, the curve obtained by the theoretical calculation does not match the actual seed movement curve. Here, through simulation results, the speeds of the seeds when leaving the seed hole 215 at three rotation speeds of 120r / min, 160r / min and 200r / min are 135.83mm / s, 225.79mm / s and 315.68mm / s respectively. The comprehensive average value is taken to determine that the average speed of the seeds when leaving the seed hole 215 in the rotation speed range of 120r / min-200r / min is 225.77mm / s.

[0074] Based on this, the curve of the seed discharge tube 216 is designed to relatively effectively reduce the collision or retention of seeds in the seed discharge tube 216 at a seed discharge speed of 120 r / min-200 r / min.

[0075] Specifically, the intersection of the central axis of the seeding ring 212 and the plane where the centers of the plurality of seeding holes 215 are located is taken as the coordinate origin, the direction from the coordinate origin to the center of one of the seeding holes 215 is taken as the positive direction of the x-axis, the upward direction is taken as the positive direction of the z-axis, and the y-axis direction perpendicular to the x-axis and the z-axis is taken as the direction to establish a spatial coordinate system, then:

[0076] like Fig.10 As shown, in the horizontal movement, after the seed leaves the seed hole 215, it moves at a speed v from point A (x0, y0) to point B (x, y) at a uniform speed over a period of time t. Then:

[0077] ,

[0078] Where:

[0079] x0=rcosɵ, y0=rsinɵ, r is the radius of the seeding ring 212, r=92mm;

[0080] v is the speed of the seed when it leaves the seed hole 215. When designing a seed meter with a seeding speed of 120 r / min-200 r / min and a radius of the seeding ring 212 of 92 mm, the above average value v=225.77 mm / s is taken;

[0081] ɵ is the angle between the line connecting the seed hole 215 and the coordinate origin and the positive direction of the x-axis;

[0082] β is the angle between the plane where the center of the seed hole 215 and the central axis of the seed ring 212 are located, and the plane where the seed moves horizontally when leaving the seed hole 215. When designing a seeding device with a seeding speed of 120r / min-200r / min and a radius of the seed ring 212 of 92mm, the above average value β=18.17° is taken.

[0083] like Fig.12 As shown, in the vertical motion, after the seed leaves the seed hole 215, it moves uniformly accelerated from point A (x0, 0) to point B (x, z) after a time t. Then:

[0084] z=-gt 2 / 2

[0085] Where:

[0086] g is the acceleration due to gravity, which is 9806.65 mm / s 2 ;

[0087] t is the time that the seeds move in the seed tube 216, which is the design parameter of the length of the seed tube 216. <t<0.0664s。

[0088] By synthesizing the above horizontal movement and vertical movement, the center line curve equation of the 14 seed tubes 216 can be obtained as follows:

[0089] ,

[0090] Where:

[0091] r=92mm, v=225.77mm / s, β=18.17°, g=9806.65mm / s 2 ; The ɵ values ​​of the 14 seed tubes 216 are 0°, 25.71°, 51.43°, 77.14°, 102.86°, 128.57°, 154.29°, 180°, 205.71°, 231.43°, 257.14°, 282.86°, 308.57°, and 334.29°, respectively; t is a design parameter, 0 <t<0.0664s。

[0092] In the specific design of the trenching system 300:

[0093] like Fig.13 , Fig.17 , Fig. 20As shown, the ditching assembly also includes an adaptive mechanism 320, which includes a connecting column 321, a spring 322, an upper connecting plate 324, a lower connecting plate 323 and two connecting rods 325. The upper connecting plate 324 is parallel to the lower connecting plate 323, and the two connecting rods 325 are parallel to each other. The two ends of the connecting rod 325 are rotatably connected to the upper connecting plate 324 and the lower connecting plate 323, respectively. The upper connecting plate 324, the lower connecting plate 323 and the two connecting rods 325 constitute a parallelogram mechanism. The two ends of the spring 322 are respectively connected to the upper connecting plate 324 and the lower connecting plate 323, and the spring 322 is used to provide an elastic force to keep the upper connecting plate 324 and the lower connecting plate 323 away from each other. The upper connecting plate 324 is connected to the stand 341, the bottom surface of the lower connecting plate 323 is fixedly connected to one end of the connecting column 321, and the other end of the connecting column 321 is fixedly connected to the top surface of the ditching device 310.

[0094] When in use, the stand 341 moves forward with the tool 100 to drive the upper connecting plate 324 to move forward, and then pulls the lower connecting plate 323 to drive the furrow opener 310 to move forward to complete the furrowing operation.

[0095] During trenching operations on hilly plots with undulating terrain, the bottom end of the existing trench opener is always at a relatively fixed height position during trenching operations. If the trenching depth of low ground is used as a benchmark, when the trench opener moves from low ground to high ground (for example, there is a bulge in front of the ground), the trenching depth of the high ground becomes greater, and the resistance during trenching will also increase accordingly; if the trenching depth of high ground is used as a benchmark, when the trench opener moves from high ground to low ground (for example, there is a depression in front of the ground), the trenching depth of the low ground becomes smaller or even cannot be trenched, making it difficult to meet agronomic requirements.

[0096] Since the ditching assembly is provided with an adaptive mechanism 320, when the ditching device 310 moves from the low ground to the high ground, there is a reaction force of being lifted upwards during the movement, which can drive the lower connecting plate 323 to be adaptively lifted to complete the ditching operation on the high ground. During the lifting process of the lower connecting plate 323, the spring 322 is compressed, and the elastic force provided by the spring 322 is used to keep the ditching depth on the high ground to meet the agronomic requirements; when the ditching device 310 moves from the high ground to the low ground, the elastic force of the spring 322 can push the lower connecting plate 323 down to complete the ditching operation on the low ground and meet the ditching depth requirements under the elastic force of the spring 322. It can be seen from this that the adaptive mechanism 320 can be provided to adaptively adjust the height position of the bottom end of the ditching device 310 when performing ditching operations on hilly plots with undulating ground, and further reduce the ditching resistance at the ditching depth that meets the agronomic requirements.

[0097] Since the upper connecting plate 324, the lower connecting plate 323 and the two connecting rods 325 form a parallelogram mechanism, the lower connecting plate 323 always remains parallel to the upper connecting plate 324 during the lifting or lowering process, and the posture of the furrow opener 310 can be always maintained, so that the front end of its bionic soil-dividing mechanism is always facing the front of the furrow, and its viscosity-reducing and drag-reducing functions are fully exerted.

[0098] Further, one end of the spring 322 is connected to one end of the lower connecting plate 323 close to the machine 100, and the other end of the spring 322 is connected to one end of the upper connecting plate 324 away from the machine 100. The upper connecting plate 324 is connected to the stand 341, which can be understood as the upper connecting plate 324 is relatively fixed in the adaptive mechanism 320, and the spring 322 is tilted. The elastic force provided to the lower connecting plate 323 can be decomposed into a horizontal component and a vertical component. The horizontal component is used to balance the reaction force of the ditching process during the operation, and the vertical component is used to balance the reaction force of the ditching depth during the operation. During the ditching operation on the uneven ground, the connecting rod 325 swings in the oblique rear direction of the upper connecting plate 324, dynamically adjusting the compression amount of the spring 322, that is, the elastic force, so as to dynamically balance the ditching resistance and the ditching depth. For example, when the trenching resistance increases, the lower connecting plate 323 can be pushed to move diagonally upward and compress the spring 322. In this process, the lower connecting plate 323 moves upward to reduce the trenching depth and reduce the trenching resistance. At the same time, the compression of the spring 322 can provide a greater elastic force until the horizontal component of the elastic force can balance the trenching resistance and the vertical component can balance the reaction force of the trenching depth. It can be seen that when working on uneven ground, the trenching depth can be adaptively controlled according to the trenching resistance, that is, the trenching depth can be adaptively adjusted for uneven ground.

[0099] It should be understood that when the above-mentioned furrow opener 310 moves from a low position on the ground to a high position, the reaction force received by the arc-shaped portion below the front end of the sliding plate 311 can be decomposed into a vertical component and a horizontal component. The vertical component can provide a force to lift the furrow opener 310 upward, and the horizontal component is the furrowing resistance. The lifting process of the above-mentioned lower connecting plate 323 is actually caused by the combined action of the vertical component and the horizontal component.

[0100] It should be noted that the above is the adjustment process of the adaptive mechanism 320 of a ditching assembly during the ditching process. From a general perspective, during the ditching operation in hilly and mountainous areas, due to the uneven ground, when adjusting the height of the stand 341 and maintaining its stability, the height of the upper connecting plate 324 in each ditching assembly is the same, and the depth of the ditch opener 310 in each ditching assembly is adaptively adjusted according to the above method so that the position of each ditch opener 310 is different in height according to the terrain conditions. This greatly reduces the ditching resistance and reduces the energy consumption of the equipment while ensuring that the ditching depth meets the agronomic requirements. At the same time, it also further reduces the shaking of the stand 341 caused by the ditching resistance, and ensures that the width, depth and straightness of the groove meet the agronomic requirements.

[0101] like Fig.13 , Fig.16 As shown, the trenching device also includes a plurality of sliding units. The sliding unit includes a trenching slider 342, a first connecting rod 343 and a second connecting rod 344. The bottom surface of the trenching slider 342 is fixedly connected to the upper connecting plate 324 of the trenching assembly. A rotating pin 345 is provided on the top surface of the trenching slider 342. The middle part of the first connecting rod 343 and the middle part of the second connecting rod 344 are both rotatably connected to the trenching slider 342 through the rotating pin 345. A plurality of sliding units are arranged side by side on the stand 341, and the trenching slider 342 is slidably connected to the stand 341. In two adjacent sliding units, the end of the first connecting rod 343 of the preceding sliding unit is rotatably connected to the end of the second connecting rod 344 of the following sliding unit, and the end of the second connecting rod 344 of the preceding sliding unit is rotatably connected to the end of the first connecting rod 343 of the following sliding unit. Thus, each sliding unit is connected in sequence so that each first connecting rod 343 and second connecting rod 344 form a scissor structure. When any two trenching sliders 342 are moved closer to or farther away from each other, the position of each trenching slider 342 can be adjusted simultaneously through the scissor structure, and the distance between two adjacent trenching sliders 342 is always equal during the adjustment process. The trenching assembly is installed on the trenching slider 342. The above design can realize the rapid adjustment of the trenching row spacing between the trenching assemblies with equal spacing. After the adjustment is completed, the position of all trenching sliders 342 can be locked by fixing any two trenching sliders 342, which is very convenient to operate.

[0102] Furthermore, the trenching device also includes a spacing adjustment motor 348 and a double-threaded screw, which is rotatably connected to the stand 341, and the two ends of the double-threaded screw are respectively a left-handed thread segment 346 and a right-handed thread segment 347. Two trenching sliders 342 are selected from the aforementioned several sliding units and are threadedly connected to the left-handed thread segment 346 and the right-handed thread segment 347 respectively. The spacing adjustment motor 348 is used to drive the double-threaded screw to rotate. The above-mentioned two grooving sliders 342 both form a screw-nut mechanism with a double-threaded screw rod. When the spacing adjustment motor 348 rotates, it can drive the two grooving sliders 342 to move closer to or away from each other, and then drive all the grooving sliders 342 to move through the above-mentioned scissor-type structure to complete the equal-spaced grooving row spacing adjustment, and automatic adjustment can be achieved; after the adjustment is completed, the controller controls the relay to cut off the power supply of the brake line of the spacing adjustment motor 348 with a power-off self-locking function to stop it from running. Through the self-locking principle of the screw-nut mechanism, the above-mentioned two grooving sliders 342 can be locked, and then under the connection of the above-mentioned scissor-type structure, each sliding unit is fixed relative to the stand 341.

[0103] In specific implementation, the first connecting rod 343 and the second connecting rod 344 are made of 6060T6 aluminum alloy material, which has high strength, hardness, good corrosion resistance and high toughness; the furrowing slider 342 is made of ABS70 material, which has high strength, hardness, good toughness, good dimensional stability and high manufacturing precision. The spacing adjustment motor 348 uses a stepper motor, which can accurately control the number of rotations / angles through the number of pulses to achieve accurate regulation of the sowing row spacing.

[0104] like Figures 13 to 15 As shown, the trenching system 300 also includes a lifting device 350, which includes a telescopic rod 351, a triangular connecting plate 352 and a balancing link 353. One end of the telescopic rod 351 is rotatably connected to the tool 100, and the three corner ends of the triangular connecting plate 352 are rotatably connected to the other end of the telescopic rod 351, the tool 100 and the stand 341, respectively. Both ends of the balancing link 353 are rotatably connected to the tool 100 and the stand 341, respectively. The balancing link 353, the tool 100, the triangular connecting plate 352 and the stand 341 form a parallelogram mechanism. The telescopic rod 351 can be made of a hydraulic cylinder, an electric push rod, etc. When the telescopic rod 351 is extended or retracted, the triangular connecting plate 352 can be driven to rotate around one end connected to the machine 100, thereby driving the stand 341 to descend or ascend, so as to achieve rapid adjustment of the height of each furrowing component during cross-ridge operations, field turns, etc.; since the balancing link 353, the machine 100, the triangular connecting plate 352 and the stand 341 form a parallelogram mechanism, the stand 341 can always remain parallel during the lifting process, which can ensure that the height of each furrow opener 310 is consistent, which is beneficial to ensure that the furrowing depth meets agronomic requirements.

[0105] Furthermore, the lifting device 350 also includes two supporting gas springs 354, and the two ends of the supporting gas springs 354 are rotatably connected to the machine 100 and the stand 341 respectively. The two supporting gas springs 354 are symmetrically arranged on both sides of the triangular connecting plate, and the distance between the ends of the two supporting gas springs 354 connected to the machine 100 is equal to the distance between the ends of the two supporting gas springs 354 connected to the stand, that is, the supporting gas springs are arranged in a vertical plane, which can balance the gravity of the stand 341, effectively support the stand 341, reduce the load of the telescopic rod 351, and achieve the purpose of high efficiency and energy saving. The telescopic rod 351 can use a small thrust and high speed push rod motor to quickly complete the lifting and lowering adjustment process. Its adjustment is sensitive, which meets the use requirements of frequently lifting and lowering the ditch opener 310 during the ditching operation of small-area plots in hilly and mountainous areas.

[0106] Furthermore, the lifting device 350 also includes two anti-sway gas springs 355, and the two ends of the anti-sway gas springs 355 are rotatably connected to the machine 100 and the stand 341 respectively. The two anti-sway gas springs 355 are symmetrically arranged on both sides of the triangular connecting plate 352, and the distance between the two anti-sway gas springs 355 and the ends connected to the machine 100 is greater than the distance between the two anti-sway gas springs 355 and the ends connected to the stand 341, so that the two anti-sway gas springs 355 are arranged in an eight-shaped shape in the tail plane of the machine 100. The setting of the anti-sway gas spring 355, on the one hand, combines with the support gas spring 354 to provide vertical support to the stand 341, reducing the load of the telescopic rod 351; on the other hand, the two anti-sway gas springs 355 provide a certain lateral clamping force to the stand 341 to reduce the shaking of the stand 341 during the trenching operation, and ensure that the width, depth and straightness of the trenches meet the agronomic requirements.

[0107] like Figures 17 to 19 As shown, the design curve of the contour surface of the soil dividing plate 312 is based on the side curve of the yellowfin tuna's head as a bionic prototype. A stereo microscope and a scanning electron microscope are used to observe and extract the top projection curve contour of the yellowfin tuna. The curve contour is imported into the CAD software, and the head curve of the yellowfin tuna is intercepted. The contour surface design curve of the soil dividing plate 312 is obtained by proportional scaling and fitting according to the agronomic requirements and the designed trenching width.

[0108] According to the agronomic requirements of crops such as Chinese medicinal materials, the trench width is greater than or equal to 20mm and the length of the soil dividing plate 312 is less than 17mm. After adjusting the size and position of the yellowfin tuna curve contour map, a plane coordinate system is constructed with the central axis of the yellowfin tuna trunk as the x-axis and the straight line perpendicular to the x-axis and tangent to the fish head as the y-axis, and the curve contour of its head is traced. The coordinates of 20 points are imported into Origin to fit the head curve, and the design curve of the contour surface of the soil dividing plate 312 is obtained. Figure 7 As shown, a rectangular coordinate system is established on the upward viewing plane of the furrow opener 310, and then:

[0109] The curve equation of the outer wall projection line of a soil dividing plate 312 is:

[0110] y = 0.000432871 x3-0.03317 x2+1.00066x+0.5555, where 0≤x≤16.38;

[0111] The curve equation of the outer wall projection line of another soil dividing plate 312 is:

[0112] y = -0.000432871 x3+0.03317 x2-1.00066x-0.5555, where 0≤x≤16.38.

[0113] When designing the size of the tail wing plate 313, a single factor test with two factors and three levels was carried out when the trenching speed was 1.5 km / h.

[0114] Table 1

[0115] In Table 1, the tail wing width is the distance between the outer walls of the two tail wing plates 313, in mm; the tail wing length is the length of the tail wing plate 313, in mm; the backfill depth is the height of the soil returned from the tail wings on both sides relative to the bottom of the trench opener 310 (i.e., the bottom of the trench), in mm. It can be seen from the data in Table 1 that when the tail wing width is constant, the backfill amount increases with the increase of the tail wing length; when the tail wing length is constant, the backfill amount increases with the increase of the tail wing width. By comparing test groups 3, 6, and 9, it was found that the tail wing width of test group 6 increased by 10mm and the backfill depth increased by 0.6mm compared with test group 3; the tail wing width of test group 9 increased by 20mm and the backfill depth increased by 0.9mm compared with test group 3. Adhering to the design principle of lightness and simplicity, in the case of such a small difference in the backfill amount, a comprehensive analysis was conducted to determine the design parameters of the trench opener 310 with a tail wing width of 20mm and a length of 40mm, that is, Figure 7 As shown, a rectangular coordinate system is established on the upward viewing plane of the furrow opener 310, and then:

[0116] The linear equation of the projection line of the outer side wall of a tail wing panel 313 is,

[0117] y=10, where 16.38≤x≤56.38;

[0118] The linear equation of the projection line of the outer side wall of another tail wing panel 313 is,

[0119] y = -10, where 16.38 ≤ x ≤ 56.38.

[0120] like Fig.16 , Fig. 20As shown, mounting holes 326 are provided on the trenching slider 342 and the lower connecting plate 323, and the trenching assembly also includes a seed guide tube 330, the tube body of the seed guide tube 330 is fixedly arranged in the mounting hole 326, no matter how the trenching slider 342 slides or how the lower connecting plate 323 is raised or lowered, the bottom end of the seed guide tube 330 is always kept between the two tail wing plates 313 unchanged, so as to ensure that the seeds guided by the seed guide tube 330 after trenching can fall into the trench and be smoothly and naturally covered with soil.

[0121] The above is only a preferred embodiment of the present invention. The above is a specific machine model embodiment for sowing Chinese medicinal materials. It should be understood that the machine model structure is not limited to sowing Chinese medicinal materials, and can be applied to most crops sown under forests in hilly and mountainous areas of Yunnan Province. The present invention is not limited to the form disclosed herein, and should not be regarded as an exclusion of other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or technology or knowledge in related fields. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. An intelligent mountain light seed drill, comprising a machine, wherein the machine is provided with a seeding system and a furrowing system, and is characterized in that: The seeding system includes a centrifugal seeding device and a seeding posture leveling system. The centrifugal seed metering device includes a seed metering mechanism, which includes a cover plate, a seed metering ring, an inner cone and an outer cone. The cover plate, the seed metering ring and the outer cone are coaxially arranged from top to bottom and are fixedly connected in sequence. The large diameter end of the outer cone is open and arranged upward. The inner cone is coaxially and rotatably arranged in the outer cone. The large diameter end of the inner cone is open and arranged upward. The large diameter end of the inner cone is matched with the seed metering ring. A plurality of seed outlet holes are evenly distributed on the circumference of the seed metering ring. A plurality of seed outlet tubes are fixedly arranged on the cover plate. One end of the plurality of seed outlet tubes is respectively connected with the plurality of seed outlet holes. The centrifugal seed metering device is connected to the machine through the seed metering posture leveling system, and the seed metering posture leveling system is used to adjust the seed metering ring to maintain a horizontal state; The trenching system includes a trenching device, which includes a frame and a plurality of trenching components. The frame is arranged in parallel at the rear end of the machine, and a plurality of trenching components are arranged side by side. The trenching components are connected to the frame. The furrowing assembly includes a furrowing tool and a seed guide tube, the furrowing tool is arranged in parallel below the stand, the furrowing tool includes a sliding plate, a bionic soil dividing mechanism and two tail wing plates, the sliding plate is arranged at one end of the furrowing tool close to the machine, the bionic soil dividing mechanism includes two soil dividing plates, one end of the two soil dividing plates are transitionally connected to the end of the sliding plate away from the machine, the two soil dividing plates are symmetrically arranged along the central plane of the sliding plate, the other ends of the two soil dividing plates are transitionally connected with the tail wing plate, the tail wing plate is parallel to the sliding plate, the bottom ends of the sliding plate, the soil dividing plate and the tail wing plate have the same height, the soil dividing plate is curved, the outer wall of the bionic soil dividing mechanism is designed to imitate the curves on both sides of the head of a yellowfin tuna, the lower part of the sliding plate close to the machine is processed into an arc so that the top of the end is pointed. The bottom end of the seed guide tube is fixedly arranged between the two tail wing plates, and the top ends of the plurality of seed guide tubes are respectively connected with one end of the plurality of seed outlet tubes away from the seed outlet; It also includes a controller, and the seeding attitude leveling system includes a static platform, a dynamic platform, a mounting frame, a pitch leveling drive mechanism, a roll leveling drive mechanism, and a dual-axis angle sensor; The centrifugal seed metering device is fixedly mounted on a mounting frame, the bottom end of the mounting frame is rotatably connected to the moving platform, one end of the moving platform is rotatably connected to one end of the static platform, the static platform is connected to the machine, and the rotating shaft of the mounting frame rotating relative to the moving platform, the rotating shaft of the moving platform rotating relative to the static platform, and the central axis of the centrifugal seed metering device are perpendicular to each other; The pitch leveling drive mechanism is used to drive the moving platform to rotate relative to the static platform, the roll leveling drive mechanism is used to drive the mounting frame to rotate relative to the moving platform, the dual-axis angle sensor is fixedly mounted on the mounting frame, and the pitch leveling drive mechanism, the roll leveling drive mechanism and the dual-axis angle sensor are all electrically connected to the controller; The pitch leveling driving mechanism comprises a pitch leveling motor, a pitch leveling transmission shaft and two crank slider mechanisms, the crank slider mechanism comprises a pitch leveling crank and a pitch leveling block, the two crank slider mechanisms are symmetrically arranged on both sides of the rotation axis of the mounting frame rotating relative to the moving platform; the pitch leveling transmission shaft is rotatably connected to the moving platform, the pitch leveling transmission shaft is parallel to the rotation axis of the moving platform relative to the static platform, the pitch leveling motor is used to drive the pitch leveling transmission shaft to rotate, the controller is electrically connected to the pitch leveling motor, one end of the pitch leveling crank is fixedly sleeved on the pitch leveling transmission shaft, the other end of the pitch leveling crank is rotatably connected to the pitch leveling block, the pitch leveling block is slidably connected to the static platform, and the sliding direction of the pitch leveling block on the static platform is perpendicular to the rotation axis of the moving platform rotating relative to the static platform; The roll leveling drive mechanism includes a roll leveling motor, a roll leveling transmission shaft and two gear sets; the roll leveling transmission shaft is rotatably connected to the moving platform, the roll leveling transmission shaft is parallel to the rotation axis of the mounting frame rotating relative to the moving platform, the roll leveling motor is used to drive the roll leveling transmission shaft to rotate, the controller is electrically connected to the roll leveling motor, the gear set includes gear A, gear B and gear C meshing in sequence, the gear A is fixedly mounted on the roll leveling transmission shaft, the gear B is rotatably connected to the moving platform, the gear C is fixedly connected to the mounting frame, and the two gear sets are symmetrically arranged on both sides of the rotation axis of the moving platform rotating relative to the static platform.

2. The intelligent mountain light seed drill according to claim 1 is characterized in that: Lifting rods are fixedly arranged at the four corners of the static platform, and the lifting rods are slidably connected to the machine.

3. The intelligent mountain light seed drill according to claim 1 is characterized in that: The centrifugal seed metering device also includes a seed filling mechanism, which includes a seed box, a seed filling tube, and a seed filling amount adjustment device. The seed box is arranged above the cover plate, the top end of the seed filling tube is connected to the bottom end of the seed box, a seed filling hole is opened in the center of the cover plate, the bottom end of the seed filling tube is connected to the seed filling hole, and the seed filling amount adjustment device is used to adjust the size of the flow channel in the seed filling tube; A pressure film sensor is arranged on the inner wall of the seeding ring, and the seeding mechanism further comprises a seeding motor, which is used to drive the inner cone to rotate; The seed discharge motor, the pressure film sensor and the seed filling amount adjustment device are all electrically connected to the controller.

4. The intelligent mountain light seed drill according to claim 3 is characterized in that: The center line of the seed outlet tube is a quasi-parallel curve, and the design curve of the center line of the seed outlet tube is designed to simulate the natural movement trajectory of the seeds when they fly out of the seed outlet hole only under the action of gravity.

5. The intelligent mountain light seed drill according to claim 1 is characterized in that: The trenching assembly also includes an adaptive mechanism, which includes a connecting column, a spring, an upper connecting plate, a lower connecting plate and two connecting rods, the upper connecting plate is parallel to the lower connecting plate, the two connecting rods are parallel to each other, the two ends of the connecting rods are rotatably connected to the upper connecting plate and the lower connecting plate respectively, the upper connecting plate is connected to the stand, the bottom surface of the lower connecting plate is fixedly connected to one end of the connecting column, and the other end of the connecting column is fixedly connected to the top surface of the trenching device; One end of the spring is connected to an end of the lower connecting plate close to the tool, and the other end of the spring is connected to an end of the upper connecting plate away from the tool.

6. The intelligent mountain light seed drill according to claim 1 is characterized in that: The trenching device also includes a plurality of sliding units. The sliding unit comprises a trenching slider, a first connecting rod and a second connecting rod, a top surface of the trenching slider is provided with a rotation pin, and the middle portion of the first connecting rod and the middle portion of the second connecting rod are both rotatably connected to the trenching slider through the rotation pin; A plurality of the sliding units are arranged side by side on the platform, the ditching slider is slidably connected to the platform, and in two adjacent sliding units, the first connecting rod end of the front sliding unit is rotatably connected to the second connecting rod end of the rear sliding unit, and the second connecting rod end of the front sliding unit is rotatably connected to the first connecting rod end of the rear sliding unit; The plurality of trenching assemblies are respectively connected to the plurality of trenching sliding blocks.

7. The intelligent mountain light seed drill according to claim 1, characterized in that: The trenching system also includes a lifting device, which includes a telescopic rod, a triangular connecting plate and a balancing link. One end of the telescopic rod is rotatably connected to the tool, and the three corner ends of the triangular connecting plate are respectively rotatably connected to the other end of the telescopic rod, the tool and the frame. Both ends of the balancing link are respectively rotatably connected to the tool and the frame. The balancing link, the tool, the triangular connecting plate and the frame form a parallelogram mechanism.

8. The intelligent mountain light seed drill according to claim 7 is characterized in that: The lifting device also includes two supporting gas springs and two anti-sway gas springs. The two ends of the support gas spring are rotatably connected to the tool and the stand respectively, and the two support gas springs are symmetrically arranged on both sides of the triangular connecting plate. The distance between one end of the two support gas springs connected to the tool is equal to the distance between one end of the two support gas springs connected to the stand. The two ends of the anti-sway gas spring are rotatably connected to the machine and the stand respectively, and the two anti-sway gas springs are symmetrically arranged on both sides of the triangular connecting plate. The distance between the ends of the two anti-sway gas springs connected to the machine is greater than the distance between the ends of the two anti-sway gas springs connected to the stand.

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