Intelligent High-Speed Precision Seeder

Abstract

The intelligent high-speed precision seeder belongs to the technical field of precision seeders. This precision seeder does not require the disassembly of the seeding monomer assembly, and has high operation efficiency. A seed metering device assembly, a depth-limiting wheel assembly, a soil covering and pressing wheel assembly, and a seed pressing wheel assembly are arranged inside the seeding monomer assembly. The seeding monomer assembly is installed on the frame assembly of the precision seeder body through a four-bar pressure adjustment suspension mechanism. A pull plate and a pull plate hanging shaft are arranged inside the four-bar pressure adjustment suspension mechanism. The four-bar pressure adjustment suspension mechanism is hooked on the pull plate hanging shaft through the pull plate, and can lift the seeding monomer assembly. In the present invention, a pull plate and a pull plate hanging shaft are installed on the seeding monomer assembly. Through the cooperation of the pull plate and the pull plate hanging shaft, the seeding monomer assembly can be lifted and lowered, so that the seeding monomer assembly is in two states of non-operation and operation, thereby changing the distance between the seeding monomer assemblies, being suitable for different ridge spacings. When changing the seeds for sowing, only simple operations are required, which can effectively improve the operation efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of precision seeders, and particularly relates to an intelligent high-speed precision seeder. Background Art

[0002] A precision seeder is a seeder that sows seeds into the seedbed according to precise seeding rates, row spacings, and seeding depths. It consists of components such as precision seed metering, soil covering, and fertilizing. Some can also monitor the seed metering working conditions, and there are sowing forms such as mechanical and pneumatic types. The former has a simple structure but has high requirements for seed sizes; the latter has good adaptability to seed shapes and sizes, and precision seeding can save seeds and increase yields.

[0003] Because different seeds require different sowing ridge spacings, for existing multi-row seeders, when changing seeds for sowing, it is necessary to disassemble and reduce or install and increase some seeding monomer assemblies, thereby changing the ridge spacing between the seeding monomer assemblies in order to be able to sow different seeds. As a result, when changing seeds for sowing operations with existing multi-row seeders, it is relatively cumbersome. Summary of the Invention

[0004] In order to solve the problem of difficult seed changing for the above-mentioned precision seeder, the present invention further provides an intelligent high-speed precision seeder, which does not require disassembly of the seeding monomer assembly and has high operation efficiency.

[0005] The technical solution adopted by the present invention is as follows:

[0006] An intelligent high-speed precision seeder, including a precision seeder body. Each seeding monomer assembly of the precision seeder body includes a seeding monomer assembly and a four-bar pressure adjustment suspension mechanism; a seed metering device assembly, a depth-limiting wheel assembly, a soil covering and pressing wheel assembly, and a seed pressing wheel assembly are arranged in the seeding monomer assembly. The seeding monomer assembly is installed on the frame assembly of the precision seeder body through the four-bar pressure adjustment suspension mechanism. A pull plate and a pull plate hanging shaft are arranged in the four-bar pressure adjustment suspension mechanism. The four-bar pressure adjustment suspension mechanism is hooked on the pull plate hanging shaft through the pull plate, and the seeding monomer assembly can be lifted.

[0007] The present invention has the following beneficial effects compared with the prior art:

[0008] 1. The present invention installs a pull plate and a pull plate hanging shaft on the seeding monomer assembly. Through the cooperation of the pull plate and the pull plate hanging shaft, the seeding monomer assembly can be lifted and lowered, so that the seeding monomer assembly is in two states: non-operation and operation, thereby changing the distance between the seeding monomer assemblies, suitable for different ridge spacings. When changing seeds for sowing, only simple operations are required, which can effectively improve the operation efficiency.

[0009] 2. The present invention is provided with a four-bar pressure adjustment suspension mechanism. Only by rotating the upper pull spring hanging shaft can the pressure of the four-link suspension frame be adjusted, which is convenient to use.

[0010] 3. The present invention installs a profiling depth adjustment mechanism on the depth wheels, which can achieve the adjustment of profiling depth and the separate profiling of two depth wheels, making the seeding effect of the seeding monomer assembly better.

[0011] 4. The present invention is provided with a fertilizer non-centering drive fork drive mechanism, which can increase the fault tolerance of the drive mechanism when driving the auger mechanism to discharge fertilizer and maintain stable drive performance during operation.

[0012] 5. The present invention is provided with a high-speed fertilizer application assembly. This mechanism has a simple structure and is convenient to disassemble. It can freely adjust the fertilizer spacing according to different ridge spacings of seeding, and is provided with different adjustment hole pitches to freely adjust the depth. This fertilizer application mechanism can perform independent profiling during operation, effectively ensuring uniform fertilizer application depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present invention;

[0014] Figure 2 is an axonometric view of the seeding monomer assembly of the present invention;

[0015] Figure 3 is a front view of the seeding monomer assembly of the present invention;

[0016] Figure 4 is a top view of the seeding monomer assembly of the present invention;

[0017] Figure 5 is an axonometric view of the four-bar pressure adjustment suspension mechanism of the present invention;

[0018] Figure 6 is a front view of the four-bar pressure adjustment suspension mechanism of the present invention;

[0019] Figure 7 is a top view of the four-bar pressure adjustment suspension mechanism of the present invention;

[0020] Figure 8 is an axonometric view of the profiling depth adjustment mechanism of the present invention;

[0021] Figure 9 is a front view of the profiling depth adjustment mechanism of the present invention;

[0022] Figure 10 is an axonometric view of the profiling adjustment plate of the present invention;

[0023] Figure 11 is a front view of the profiling adjustment plate of the present invention;

[0024] Figure 12 is an axonometric view of the fertilizer non-centering drive fork drive mechanism of the present invention;

[0025] Figure 13 is a top view of the fertilizer non-centering drive fork drive mechanism of the present invention;

[0026] Figure 14 is the axonometric view of the instant fertilization transmission mechanism of the present invention;

[0027] Figure 15 is the front view of the instant fertilization transmission mechanism of the present invention;

[0028] Figure 16 is the top view of the instant fertilization transmission mechanism of the present invention;

[0029] Figure 17 is the axonometric view of the high-speed fertilization assembly of the present invention;

[0030] Figure 18 is the front view of the high-speed fertilization assembly of the present invention;

[0031] Figure 19 is the axonometric view of the welded structure of the frame of the present invention;

[0032] Figure 20 is the front view of the welded structure of the frame of the present invention;

[0033] Figure 21 is the top view of the welded structure of the frame of the present invention;

[0034] Figure 22 is the block diagram of the electric drive control system of the present invention;

[0035] Figure 23 is the block diagram of the emergency stop without seed loss of the present invention;

[0036] Figure 24 is the system flow chart of the emergency stop without seed loss of the present invention;

[0037] Figure 25 is the block diagram of the pre-seeding control of the present invention;

[0038] Figure 26 is the system flow chart of the pre-seeding of the present invention;

[0039] Wherein: 1. Frame assembly; 2. High-speed fertilization assembly; 3. Fertilizer tank assembly; 4. Seed box assembly; 5. Fan assembly; 6. Hydraulic assembly; 7. Side traction assembly; 8. Seeding unit assembly; 9. Fertilization non-centering drive fork drive mechanism; 11. Frame welded structure; 111. Main beam one; 112. Main beam two; 113. Main beam reinforcement plate; 114. Side reinforcement pipe; 115. Connecting seat; 116. Vertical plate; 21. Fertilization disc assembly; 22. Fertilization frame welded; 23. Fertilization spring; 24. Fertilization arm welded; 25. Fertilization seat welded; 26. Fertilization mud scraper; 81. Seeding unit assembly; 82. Four-bar pressure adjustment suspension mechanism; 83. Seed metering device assembly; 84. Depth wheel assembly; 85. Soil covering and compaction wheel assembly; 86. Seed pressing wheel assembly; 87. Four-bar linkage suspension frame; 88. Four-bar linkage front connecting plate; 89. Pressure adjustment component; 810. Pulling plate; 811. Tightening spring; 812. Hook part; 813. Anti-disengagement cap; 814. Pulling plate hanging shaft; 841. Profiling frame welded; 842. Profiling adjustment plate; 843. Profiling stop block; 844. Fixed shaft; 845. Profiling debugging bolt; 846. Main shaft; 847. Rocker; 848. First bearing; 849. Mud scraper; 871. Link; 872. Wavy groove; 891. Upper spring hanging shaft; 892. Pulling spring; 893. Lower spring hanging shaft; 8411. Installation clearance; 8421. Groove; 91. Instant fertilization drive mechanism; 92. Non-centering drive fork male assembly; 93. Non-centering drive fork female assembly; 94. Connecting pipe; 921. Fertilization bearing seat; 922. Fork male shaft; 923. Fork male part; 931. Fork female part; 932. Fork female shaft; 911. Hydraulic drive motor; 912. Driving sprocket; 913. Driving chain; 914. Electromagnetic drive proportional valve; 915. Driven sprocket. Detailed implementation mode

[0040] In order to better understand the purpose, structure and function of the present invention, the following further describes the present invention in detail with reference to the accompanying drawings.

[0041] Refer to Figures 1 - 26, the present invention provides an intelligent high-speed precision seeder, which includes a precision seeder body. The precision seeder body includes a frame assembly 1, a fertilizer box assembly 3, a seed box assembly 4, a fan assembly 5, a hydraulic assembly 6 and a plurality of seeding unit assemblies 8. The plurality of seeding unit assemblies 8 are evenly installed on the frame welding structure 11 of the frame assembly 1. The fertilizer box assembly 3 and the seed box assembly 4 are installed side by side in front and back above the frame assembly 1. The seed outlet of the seed box assembly 4 is communicated with the seed inlets of the plurality of seeding unit assemblies 8 and provides seeds for the seeding unit assemblies 8. The fertilizer outlet of the fertilizer box assembly 3 is arranged on the front side of the plurality of seeding unit assemblies 8. Corresponding to the fertilizer outlet of the fertilizer box assembly 3, there are a plurality of high-speed fertilizer application assemblies 2 evenly installed on the frame welding structure 11 of the frame assembly 1. The plurality of high-speed fertilizer application assemblies 2 and the plurality of seeding unit assemblies 8 are staggered in front and back. The fan assembly 5 is installed at the rear end of the frame assembly 1. The air outlet of the fan assembly 5 is communicated with the air inlets of the plurality of seeding unit assemblies 8 and provides negative pressure for the seeding unit assemblies 8. The fan assembly 5 is connected to the power system of the tractor through the hydraulic assembly 6.

[0042] The plurality of seeding unit assemblies 8 are grouped into sets of three.

[0043] A side traction assembly 7 is installed on the left or right side of the frame assembly 1.

[0044] As Figures 19 - 21 shown, the frame welding structure 11 includes a main beam one 111, a main beam two 112, side strengthening tubes 114 and a plurality of main beam strengthening plates 113. The main beam one 111 is horizontally arranged in the left-right direction. The main beam two 112 is fixedly installed in parallel above the main beam one 111. The connection between the main beam two 112 and the main beam one 111 is strengthened by a plurality of main beam strengthening plates 113. A side strengthening tube 114 is connected between one end face of the main beam two 112 and the upper surface of the main beam one 111. A plurality of connection seats 115 are installed on the front side surface of the main beam two 112.

[0045] Both the main beam one 111 and the main beam two 112 are square tubes. There is a gap between the main beam two 112 and the main beam one 111. Both end faces of the main beam two 112 are fixed on the upper surface of the main beam one 111 through vertical plates 116.

[0046] A plurality of main beam strengthening plates 113 are provided on the front and back side surfaces of the main beam two 112 and the main beam one 111. The plurality of main beam strengthening plates 113 are evenly arranged in the left-right direction.

[0047] Each main beam strengthening plate 113 is a T-shaped plate. The protruding part in the middle of the T-shaped plate is inserted into the gap between the main beam two 112 and the main beam one 111. And the upper and lower end faces of this middle protruding part are respectively fixedly connected to the main beam two 112 and the main beam one 111. The flat bottom of the T-shaped plate is fixedly connected to the main beam two 112 and the main beam one 111.

[0048] One end face of the main beam 111 is fixed with a mounting seat. The main beam reinforcing plate 113 adopts a square tube structure, and the main beam reinforcing plate 113 is connected between one end face of the main beam 112 and the mounting seat.

[0049] As Figures 2 - 4 shown, each seeding monomer assembly 8 includes a seeding monomer assembly 81 and a four-bar pressure adjustment suspension mechanism 82; the seeding monomer assembly 81 is installed on the frame welding structure 11 of the frame assembly 1 of the precision seeder body through the four-bar pressure adjustment suspension mechanism 82. A pull plate 810 and a pull plate hanging shaft 814 are arranged in the four-bar pressure adjustment suspension mechanism 82. The four-bar pressure adjustment suspension mechanism 82 is hooked on the pull plate hanging shaft 814 through the pull plate 810, and the seeding monomer assembly 81 can be lifted. When changing seeds, it is not necessary to disassemble the seeding monomer assembly 8.

[0050] A seed metering device assembly 83, a depth-limiting wheel assembly 84, a soil covering and pressing wheel assembly 85, and a seed pressing wheel assembly 86 are arranged in the seeding monomer assembly 81;

[0051] As Figures 5 - 7 shown, the four-bar pressure adjustment suspension mechanism 82 includes a four-bar linkage suspension frame 87, a four-bar linkage front connecting plate 88, and a pressure adjustment component 89; the front end of the four-bar linkage suspension frame 87 is connected to the four-bar linkage front connecting plate 88, the rear end of the four-bar linkage suspension frame 87 is connected to the front end of the seeding frame body of the seeding monomer assembly 81, and the upper and lower ends of the four-bar linkage suspension frame 87 are tightened through the pressure adjustment component 89. Continuous non-uniform-depth wave grooves 872 are formed on the upper and lower end faces of the four-bar linkage suspension frame 87. The upper and lower ends of the pressure adjustment component 89 are respectively arranged in the corresponding wave grooves 872, and the pressure received by the four-bar linkage suspension frame 87 is adjusted by adjusting the positions of the upper and lower ends of the pressure adjustment component 89 in the wave grooves 872.

[0052] As Figures 5 - 7 shown, the four-bar linkage suspension frame 87 includes four link rods 871; the four link rods 871 are arranged in a rectangular array frame. The two link rods 871 located above are connected by a beam one, the two link rods 871 located below are connected by a beam two. The front ends of the four link rods 871 are respectively hinged to the four-bar linkage front connecting plate 88 through a hinge shaft one, and the rear ends of the four link rods 871 are respectively hinged to the front end of the seeding frame body of the seeding monomer assembly 81 through a hinge shaft two. The wave grooves 872 are formed on the upper end faces of the two link rods 871 located above and the lower end faces of the two link rods 871 located below.

[0053] Each of the wave grooves 872 is an inwardly concave continuous non-uniform-depth arc shape.

[0054] As Figures 5 - 7As shown, the pressure regulating assembly 89 includes an upper tension spring hanging shaft 891, a lower tension spring hanging shaft 893 and at least one tension spring 892; the upper tension spring hanging shaft 891 is mounted in two wave grooves 872 at the upper end, and the upper tension spring hanging shaft 891 is connected to the lower tension spring hanging shaft 893 through at least one tension spring 892, and the lower tension spring hanging shaft 893 is stuck in the two wave grooves 872 at the lower end through the tension of the tension spring 892. By rotating the upper tension spring hanging shaft 891, the position of the upper tension spring hanging shaft 891 in the corresponding wave groove 872 can be changed, thereby changing the distance between the upper tension spring hanging shaft 891 and the lower tension spring hanging shaft 893, causing the tension spring 892 to deform, and the pressure of the tension spring 892 acting on the four-link suspension frame 87 through the upper tension spring hanging shaft 891 and the lower tension spring hanging shaft 893 changes.

[0055] The number of the tension springs 892 is preferably two.

[0056] The outer circumferential surfaces of the upper tension spring hanging shaft 891 and the lower tension spring hanging shaft 893 are both provided with annular grooves for convenient hooking of the tension springs.

[0057] like Figures 5 - 6 As shown, the sowing unit assembly 81 also includes a pull plate 810, a tensioning spring 811 and a pull plate hanging shaft 814; the pull plate 810 is arranged on one side of the four-link suspension frame 87, the pull plate 810 is hinged with the corresponding connecting rod 871 located above, and a pull plate hanging shaft 814 is provided on the rear end of the outer side surface of the connecting rod 871 located below on the same side as the pull plate 810, and a hook portion 812 is provided at the lower end of the pull plate 810, and is hooked on the pull plate hanging shaft 814 through the hook portion 812, and the connecting rod 871 located below is lifted accordingly, thereby lifting the sowing unit assembly 81, and a tensioning spring 811 is connected between the middle part of the pull plate 810 and the four-link front connecting plate 88, when the hook portion 812 is hung on the pull plate hanging shaft 814, it can provide a pulling force, so that the hook portion 812 can be pressed against the pull plate hanging shaft 814 to prevent the pull plate 810 from falling off.

[0058] An anti-drop cap 813 is provided on the outer end surface of the pull plate hanging shaft 814 to prevent the pull plate 810 from falling off the pull plate hanging shaft 814.

[0059] The pull plate 810 is provided with weight-reducing holes.

[0060] like Figures 8 - 11As shown in the figure, the depth-limiting wheel assembly 84 is installed on the seeding frame of the seeding single assembly 81 through a profiling depth adjustment mechanism. The profiling depth adjustment mechanism includes a profiling frame welding 841, a depth adjustment component, and two rocker arms 847. The front end of the profiling frame welding 841 is installed on the rear end of the seeding frame of the seeding single assembly 81. The rear ends of the two rocker arms 847 are respectively rotatably installed on the left and right sides of the middle part of the profiling frame welding 841. The two depth-limiting wheels of the depth-limiting wheel assembly 84 are respectively installed on the front ends of the two rocker arms 847 and move up and down through the rocker arms 847. The depth adjustment component is arranged above the two rocker arms 847 and is installed on the profiling frame welding 841 to control the profiling depth of the depth-limiting wheel.

[0061] As Figures 8 - 11 shown in the figure, the depth adjustment component includes a profiling adjustment plate 842, a profiling stop block 843, a fixed shaft 844, and a profiling debugging bolt 845. There is an installation gap 8411 in the middle of the upper end of the profiling frame welding 841. The vertical plate of the profiling adjustment plate 842 is inserted into the installation gap 8411. The profiling adjustment plate 842 has an inverted T-shaped structure. A round hole is provided at the lower end of the vertical plate of the profiling adjustment plate 842. A first bearing 848 is installed in the round hole. The profiling adjustment plate 842 is rotatably installed on a main shaft 846 provided on the profiling frame welding 841 through the first bearing 848. A groove 8421 is opened on the bottom surface of the middle protruding part of the profiling adjustment plate 842. The fixed shaft 844 is installed in the groove 8421. The upper end of the profiling stop block 843 is sleeved on the fixed shaft 844. The profiling stop block 843 straddles above the two rocker arms 847. A threaded through hole penetrating through both of them is provided on the profiling stop block 843 and the fixed shaft 844. The profiling debugging bolt 845 can detachably fix the profiling stop block 843 and the fixed shaft 844 through the threaded through hole.

[0062] Working principle: The depth-limiting wheel moves up and down following the ground profiling and drives the rocker arm 847 to rotate, and then touches the profiling stop block 843.

[0063] When the profiling debugging bolt 845 is not installed, the profiling stop block 843 and the fixed shaft 844 can rotate relative to each other. When encountering ground with different heights, the rocker arm 847 that rotates as the depth-limiting wheel moves up and down will touch the profiling stop block 843. Since the profiling stop block 843 can rotate, the two depth-limiting wheels will not be forced to be at the same height, achieving the purpose of separate profiling.

[0064] When the profiling debugging bolt 845 is installed, the profiling stop block 843 and the fixed shaft 844 are relatively fixed, and the heights of the bottom surfaces of the profiling stop blocks 843 are the same, resulting in the same rotation angles of the two rocker arms 847. When the two rocker arms 847 touch the profiling stop block 843, the two rocker arms 847 simultaneously drive the profiling stop block 843 and the profiling adjustment plate 842 to rotate into the installation gap 8411.

[0065] The rear ends of the two rocking arms 847 are rotated to be mounted on the main shaft 846 which is sleeved on the profiling frame welding 841 .

[0066] The first bearing 848 is an oil-free bearing.

[0067] The left and right lower ends of the contour stopper 843 are both provided with protrusions, and the contour stopper 843 contacts the rocker 847 through the protrusions.

[0068] A demud plate 849 is provided at the rear end of each depth-limiting wheel, and the two demud plates 849 are both mounted on the main shaft 846 .

[0069] like Figures 13 - 16 As shown, a fertilizer box assembly 3 is provided with a fertilization non-centering transmission fork transmission mechanism 9; the fertilization non-centering transmission fork transmission mechanism 9 comprises an instant fertilization transmission mechanism 91, a connecting pipe 94, two non-centering transmission fork male assemblies 92 and two non-centering transmission fork female assemblies 93; the two non-centering transmission fork male assemblies 92 are oppositely arranged, and the two non-centering transmission fork male assemblies 92 are connected by a connecting pipe 94, and the instant fertilization transmission mechanism 91 is installed on the connecting pipe 94. The fertilization transmission mechanism 91 drives two centerless transmission fork male assemblies 92 to rotate, and a centerless transmission fork female assembly 93 is respectively arranged at the outer end of the two centerless transmission fork male assemblies 92, and the inner end of each centerless transmission fork female assembly 93 is arranged on the motion trajectory of the corresponding centerless transmission fork male assembly 92, so that the centerless transmission fork male assembly 92 can drive the centerless transmission fork female assembly 93 to rotate, and the outer end of the centerless transmission fork female assembly 93 is rotatably installed in the fertilizer box of the fertilizer box assembly 3.

[0070] Each of the non-centering transmission fork male assemblies 92 includes a fertilization bearing seat 921, a fork male shaft 922 and a fork male component 923; the inner end of the fertilization bearing seat 921 is connected to the connecting pipe 94, the inner end of the fork male shaft 922 is connected to the outer end of the fertilization bearing seat 921, and the outer end of the fork male shaft 922 is installed with a fork male component 923, and the fork male component 923 is a long strip.

[0071] The non-centering transmission shift fork female assembly 93 includes a shift fork female component 931 and a shift fork female shaft 932; the shift fork female component 931 is a concave plate, the shift fork male component 923 and the shift fork female component 931 are cross-arranged, and the shift fork male component 923 is obliquely inserted into the recess of the shift fork female component 931, so that both ends of the shift fork male component 923 can shift the shift fork female component 931 during the circular motion, and the outer end of the shift fork female component 931 is rotatably installed in the box body of the fertilizer box assembly 3 through the shift fork female shaft 932.

[0072] The instant fertilization transmission mechanism 91 is installed at the fertilizer outlet end of the fertilizer box assembly 3.

[0073] The instant fertilization transmission mechanism 91 includes a hydraulic drive motor 911, a driving sprocket 912, a driving chain 913, an electromagnetic drive proportional valve 914 and a driven sprocket 915; the driving sprocket 912 is sleeved on the output shaft of the hydraulic drive motor 911, the driven sprocket 915 is sleeved on the non-centering transmission fork male assembly 92, and the non-centering transmission fork male assembly 92 is installed in the box body of the fertilizer box assembly 3 through a fertilization bearing seat 921.

[0074] The driving sprocket 912 and the driven sprocket 915 are connected to each other through a driving chain 913 , and the hydraulic driving motor 911 is controlled by an electromagnetic driving proportional valve 914 .

[0075] The fertilization bearing seat 921 adopts UFC206 bearing.

[0076] like Figures 17 - 18 As shown, the high-speed fertilizing assembly 2 includes a fertilizing disc assembly 21, a fertilizing frame weld 22, a fertilizing spring 23, a fertilizing arm weld 24, a fertilizing seat weld 25 and a fertilizer pipe 27; the fertilizer pipe 27 is welded to the fertilizing frame weld 22, and the fertilizer pipe 27 is connected to the fertilizer outlet of the fertilizer box assembly 3 through a hose to introduce the fertilizer into the fertilizer ditch opened on the ground by the fertilizing disc assembly 21, the fertilizing disc assembly 21 is rotatably mounted on the lower end of the fertilizing frame weld 22, the middle part of the fertilizing frame weld 22 is rotatably mounted on the front end of the fertilizing arm weld 24, a fertilizing spring 23 is connected between the upper end of the fertilizing frame weld 22 and the upper end of the fertilizing arm weld 24, a fertilizing seat weld 25 is installed at the rear end of the fertilizing arm weld 24, and the fertilizing seat weld 25 is detachably mounted on the frame weld structure 11 of the frame assembly 1.

[0077] The fertilizing disc assembly 21 is composed of two fertilizing discs arranged in a V-shape.

[0078] The lower end of the fertilizing frame weld 22 is provided with an outer cover, which is arranged on the fertilizing disc assembly 21, and the rear end of the outer cover is provided with a fertilizing scraper 26. The upper end of the fertilizer pipe 27 is welded on the outer cover.

[0079] The fertilizing arm weld 24 is a bent structure with a front end bent downward and a rear end horizontal. A hook is provided at the bending portion of the fertilizing arm weld 24 , and the hook is connected to the upper end of the fertilizing tension spring 23 .

[0080] Two different sets of swivel sleeve and bolt assemblies are arranged on the front end of the fertilizing arm weld 24. The fertilizing frame weld 22 is rotatably connected to the fertilizing arm weld 24 through one set of swivel sleeve and bolt assemblies, and the other set of swivel sleeve and bolt assemblies plays a role of fixing and limiting the fertilizing frame weld 22 and the fertilizing arm weld 24.

[0081] A component of a rotating sleeve and a bolt, where the bolt passes through a clamping plate provided at the front end of the fertilizer application arm welding joint 24. The rotating sleeve is sleeved on the bolt and is arranged in the sandwich layer of the clamping plate. The fertilizer application frame welding joint 22 is sleeved on the rotating sleeve through a through hole opened thereon.

[0082] Working principle of the high-speed fertilizer application disc: The fertilizer outlet of the fertilizer tank assembly 3 is connected to the fertilizer pipe 27 in the high-speed fertilizer application assembly 2 through a hose. Fertilizer flows from the fertilizer tank assembly 3 into the fertilizer pipe of the high-speed fertilizer application assembly 2 through the hose, and fertilization grooves are opened on the ground by the fertilizer application discs arranged in a V-shaped pattern on both sides in the fertilizer application disc assembly 21. The fertilizer is applied into the soil from the fertilizer pipe in the high-speed fertilizer application assembly 2 to complete the fertilization process. The fertilizer application arm welding joint 24 and the fertilizer application frame welding joint 22 in the high-speed fertilizer application assembly are fixed through a rotating sleeve and a bolt. At the same time, a fertilizer application spring 23 is installed between them. When the high-speed fertilizer application assembly mechanism enters the soil for operation, the fertilizer application disc assembly 21 component contacts the soil and moves upward under force, and the spring is stretched under force, and vice versa. Therefore, the high-speed fertilizer application assembly mechanism can complete independent profiling and can effectively ensure the uniformity of the fertilization depth.

[0083] An electric drive seeding control system is installed on the precision seeder body.

[0084] For the electric drive seeding control system, when the forward speed is different, the plant spacing always remains the same. It is driven by electricity, while ordinary seeders are driven by mechanical transmission. After setting the plant spacing, no matter how fast the vehicle runs, the same plant spacing can be guaranteed. When the machine is operating, the radar speed measurement sensor installed in front of the machine will identify the forward speed signal of the machine and feedback it to the main control system of the machine in a timely manner. The main control system will control the rotation speed of the seed metering motor according to the forward speed of the machine. At the same time, the rotation speed of the seed metering motor will also be feedback to the main control system in a timely manner. Thus, the rotation speed of the seed metering motor can be adjusted timely and accurately to ensure the uniformity of the plant spacing. At the same time, the main control system will also change the rotation speed of the hydraulic motor in a timely manner according to the speed signal transmitted by the radar, so as to ensure the uniformity of the fertilization amount.

[0085] As Figure 22 shown, the electric drive seeding control system includes a PLC, a radar speed measurement unit, a sensor unit, an alarm unit, a fertilization hydraulic motor execution unit, an emergency stop unit, a valve control unit and a communication unit;

[0086] The radar speed measurement unit is connected to the PLC. The radar speed measurement unit is used to measure the forward speed during the operation of the high-speed precision seeder and transmit the signal to the PLC. The speed measurement radar sensor of the radar speed measurement unit is installed directly in front of the precision seeder;

[0087] The sensor unit is signal-connected to the PLC and is used to measure the seeding, fertilization and wind pressure conditions and transmit the signals to the PLC;

[0088] The sensor unit includes a seed monitoring sensor, a code disk sensor, a material sensor, and a start-stop sensor; the seed monitoring sensor is installed on the seed guiding tube within the seeding monomer assembly to monitor for phenomena such as duplicate seeding or missed seeding; the code disk sensor is installed on the fertilizer discharging shaft within the fertilizer tank assembly to monitor the accuracy of fertilization; the material sensor is installed on the fertilizer tank and the seed tank to monitor whether the seeds and fertilizer are sufficient; the start-stop sensor is installed on the monomer frame within the seeding monomer assembly to monitor the state of the machine and determine whether the seeding and fertilization systems are started; an electronic wind pressure gauge is installed in front of the machine, and the wind pressure gauge is connected to the fan through a hose to monitor the magnitude of the fan wind pressure; the sensor unit transmits the monitored signals to the PLC.

[0089] The alarm unit is connected to the PLC. The alarm unit is used to judge the faults and potential hazards existing during the machine operation to ensure the normal and stable operation of the machine. The alarm unit will give an alarm when it detects missed seeding through the sensor unit, gives an alarm when it detects insufficient fan wind pressure, and gives an alarm for problems such as detected line faults and motor faults, and transmits the signals to the PLC;

[0090] The PLC receives the signals transmitted by the radar speed measurement unit, the sensor unit, and the alarm unit, and after processing the signals, transmits them to the fertilizer application hydraulic motor execution unit, the emergency stop unit, and the valve control unit.

[0091] The fertilizer application hydraulic motor execution unit is connected to the PLC. The fertilizer application hydraulic motor execution unit is used to control the rotation speed of the fertilizer application hydraulic drive motor of the precision seeder.

[0092] As Figures 23 - 24 shown, the function of not losing seeds during emergency stop is as follows:

[0093] The emergency stop unit sends an emergency stop instruction to the main control chip; the main control chip controls the start and stop of the seeding operation of the precision seeder. The emergency stop unit includes an emergency stop circuit module and a communication circuit.

[0094] Specifically: the main control chip controls the rotation speed of the DC motor through the motor drive module, and the DC motor, as the actuator, drives the seeding monomer of the precision seeder to complete the processes of sucking seeds and discharging seeds;

[0095] The DC motor feeds back signals to the main control chip through the encoder feedback module.

[0096] The PLC main control end of the PLC total controller receives the signals transmitted by the radar speed measurement module and judges whether the operation speed of the machine drops sharply,

[0097] Under normal circumstances, the PLC control end of the PLC total controller will give an instruction in a timely manner, the main control chip executes the instruction, and the precision seeder performs the seeding operation.

[0098] If it is determined that the machine is in an emergency stop, the emergency stop circuit directly issues an instruction to the main control chip. It can be understood that at this time, the PLC main controller does not work, the main control chip executes the instruction, the drive circuit stops working, and the seeding operation of the precision seeder stops.

[0099] It avoids the phenomenon of seed accumulation that occurs with the emergency stop of the precision seeder.

[0100] The work process of not losing seeds during emergency stop is as follows:

[0101] Initialize the system, and then start the automatic seeding mode. After the seeding mode is started, the speed measurement and monitoring mode starts. If t1 - t0 > the set value, it is determined that the speed drops sharply, then the emergency stop circuit directly issues an instruction to the main control chip. If t1 < 20 (the set value is the manifestation form of the radar speed), it is determined that the speed makes an emergency stop, the total control PLC stops outputting signals, the emergency stop circuit starts, the main chip executes the instruction, the drive circuit stops, and the seeder stops working.

[0102] t1 represents the termination time of parking, and t0 represents the starting time of parking.

[0103] The pre - filling of seeds function is as follows:

[0104] The seed monitoring sensor transmits a signal to the main control chip. The main control chip controls the rotation speed of the DC motor through the motor drive module. The DC motor, as the actuator, drives the seeding monomer of the precision seeder to complete the process of sucking and discharging seeds. The DC motor transmits the signal of the DC motor to the main control chip through the encoder feedback device.

[0105] The method of pre - filling seeds: First, initialize the system; then press the button to start filling seeds and check if it starts. If it does, proceed to the next step; if not, repeat pressing the button to start filling seeds; then, the DC motor starts, and the seeding monomer of the precision seeder performs the operation of sucking and discharging seeds. The seed monitoring module monitors whether there is a seed flow through the seed guide tube of the precision seeder. When the first dropped seed is detected, a signal is transmitted to the main control chip. If no seed is detected, continue to monitor until the first dropped seed is detected; after the main control chip receives the signal, it controls the DC motor to stop rotating and enters the waiting program to complete the pre - filling of seeds process.

[0106] The communication unit is connected to all seeder controllers through the industrial fieldbus. The communication unit is connected to the PLC, and the touch screen is connected to the PLC through the industrial Ethernet. The communication unit includes a communication line and a communication module.

[0107] When the machine is operating, the radar speed measurement unit monitors the speed signal of the machine's forward movement and simultaneously transmits the collected signal to the PLC main control system. The PLC main control system controls the rotation speed of the seed metering motor according to the speed signal transmitted by the speed measurement radar. At the same time, the rotation speed of the seed metering motor is also timely fed back to the main control system, so that the rotation speed of the seed metering motor can be adjusted timely and accurately to ensure the uniformity of the plant spacing.

[0108] It can be understood that the present invention is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. An intelligent high-speed precision seeder, comprising a precision seeder body, characterized in that: Each sowing unit assembly (8) of the precision seeder body comprises a sowing unit assembly (81) and a four-bar pressure adjustment suspension mechanism (82); a seed meter assembly (83), a depth limiting wheel assembly (84), a soil covering and pressing wheel assembly (85) and a seed pressing wheel assembly (86) are arranged in the sowing unit assembly (81); the sowing unit assembly (81) is mounted on the frame assembly (1) of the precision seeder body via the four-bar pressure adjustment suspension mechanism (82); a pull plate (810) and a pull plate hanging shaft (814) are arranged in the four-bar pressure adjustment suspension mechanism (82); the four-bar pressure adjustment suspension mechanism (82) is hooked on the pull plate hanging shaft (814) via the pull plate (810) and can lift the sowing unit assembly (81); the precision seeder body comprises a fertilizer box assembly (3); a fertilization non-centering transmission fork transmission mechanism (9) is installed in the fertilizer box assembly (3); the fertilization non-centering transmission fork transmission mechanism (9) comprises an instant fertilization transmission mechanism (91), a connecting pipe (94), two centerless transmission fork male assemblies (92) and two centerless transmission fork female assemblies (93); the two centerless transmission fork male assemblies (92) are arranged opposite to each other and are connected by a connecting pipe (94); an instant fertilization transmission mechanism (91) is installed on the connecting pipe (94); the instant fertilization transmission mechanism (91) drives the two centerless transmission fork male assemblies (92) to rotate The centerless transmission fork male assembly (92) is movable, and a centerless transmission fork female assembly (93) is respectively arranged at the outer ends of the two centerless transmission fork male assemblies (92), and the inner end of each centerless transmission fork female assembly (93) is arranged on the motion track of the corresponding centerless transmission fork male assembly (92), so that the centerless transmission fork male assembly (92) can drive the centerless transmission fork female assembly (93) to rotate, and the outer end of the centerless transmission fork female assembly (93) is rotatably installed in the fertilizer box of the fertilizer box assembly (3); Each of the non-centering transmission fork male assemblies (92) comprises a fertilizing bearing seat (921), a fork male shaft (922) and a fork male component (923); the inner end of the fertilizing bearing seat (921) is connected to the connecting pipe (94), the inner end of the fork male shaft (922) is connected to the outer end of the fertilizing bearing seat (921), and the fork male component (923) is installed at the outer end of the fork male shaft (922), and the fork male component (923) is a long strip; The centerless transmission shift fork female assembly (93) comprises a shift fork female component (931) and a shift fork female shaft (932); the shift fork female component (931) is a concave plate, the shift fork male component (923) and the shift fork female component (931) are arranged crosswise, and the shift fork male component (923) is obliquely inserted into the notch of the shift fork female component (931), so that both ends of the shift fork male component (923) can shift the shift fork female component (931) in the process of circular motion, and the outer end of the shift fork female component (931) is rotatably mounted in the box body of the fertilizer box assembly (3) via the shift fork female shaft (932).

2. The intelligent high-speed precision seeder according to claim 1, characterized in that: The precision seeder body further includes a frame assembly (1), a seed box assembly (4), a fan assembly (5), a hydraulic assembly (6), and a plurality of seeding monomer assemblies (8); the plurality of seeding monomer assemblies (8) are evenly installed on the frame welding structure (11) of the frame assembly (1), the fertilizer box assembly (3) and the seed box assembly (4) are installed side by side in the front and back above the frame assembly (1), the seed outlet of the seed box assembly (4) is communicated with the seed inlets of the plurality of seeding monomer assemblies (8) and provides seeds for the seeding monomer assemblies (8), the fertilizer outlet of the fertilizer box assembly (3) is arranged on the front side of the plurality of seeding monomer assemblies (8), and a plurality of high-speed fertilization assemblies (2) evenly installed on the frame welding structure (11) of the frame assembly (1) are correspondingly arranged at the fertilizer outlet of the fertilizer box assembly 3, the plurality of high-speed fertilization assemblies (2) and the plurality of seeding monomer assemblies (8) are staggered in the front and back, the fan assembly (5) is installed at the rear end of the frame assembly (1), the air outlet of the fan assembly (5) is communicated with the air inlets of the plurality of seeding monomer assemblies (8) and provides negative pressure for the seeding monomer assemblies (8), and the fan assembly (5) is connected to the power system of the tractor through the hydraulic assembly (6).

3. The intelligent high-speed precision seeder according to claim 2, wherein: The four-bar pressure adjustment suspension mechanism (82) includes a four-bar linkage suspension frame (87), a four-bar linkage front connecting plate (88), and a pressure adjustment component (89); the front end of the four-bar linkage suspension frame (87) is connected to the four-bar linkage front connecting plate (88), the rear end of the four-bar linkage suspension frame (87) is connected to the front end of the seeding frame body of the seeding monomer assembly (81), the upper and lower ends of the four-bar linkage suspension frame (87) are tightened through the pressure adjustment component (89), and continuous non-uniform depth wave grooves (872) are provided on the upper and lower end surfaces of the four-bar linkage suspension frame (87), the upper and lower ends of the pressure adjustment component (89) are respectively arranged in the corresponding wave grooves (872), and the pressure received by the four-bar linkage suspension frame (87) is adjusted by adjusting the positions of the upper and lower ends of the pressure adjustment component (89) in the wave grooves (872).

4. The intelligent high-speed precision seeder according to claim 3, wherein: The four-bar linkage suspension frame (87) includes four link rods (871); the four link rods (871) are arranged in a rectangular array frame, the front ends of the four link rods (871) are respectively hinged to the four-bar linkage front connecting plate (88) through a hinge shaft one, the rear ends of the four link rods (871) are respectively hinged to the front end of the seeding frame body of the seeding monomer assembly (81) through a hinge shaft two, and the wave grooves (872) are provided on the upper end surfaces of the two link rods (871) located above and the lower end surfaces of the two link rods (871) located below.

5. The intelligent high-speed precision seeder according to claim 4, characterized in that: The pressure adjustment component (89) includes an upper spring hanging shaft (891), a lower spring hanging shaft (893), and at least one spring (892); the upper spring hanging shaft (891) is placed in the two wave grooves (872) located at the upper end, the upper spring hanging shaft (891) is connected to the lower spring hanging shaft (893) through at least one spring (892), and the lower spring hanging shaft (893) is stuck in the two wave grooves (872) located at the lower end through the pulling force of the spring (892).

6. The intelligent high-speed precision seeder according to claim 5, wherein: The seeding monomer assembly (81) further includes a pull plate (810), a tension spring (811) and a pull plate hanging shaft (814); the pull plate (810) is arranged on one side of the four-link suspension (87), the pull plate (810) is hinged to the corresponding link (871) located above, a pull plate hanging shaft (814) is provided on the rear end of the outer side of the link (871) located below on the same side as the pull plate (810), a hook portion (812) is provided at the lower end of the pull plate (810), and the pull plate (810) is hooked on the pull plate hanging shaft (814) through the hook portion (812), and a tension spring (811) is connected between the middle of the pull plate (810) and the four-link front connecting plate (88).

7. An intelligent high-speed precision seeder according to claim 1, characterized in that: The depth-limiting wheel assembly (84) is installed on the seeding frame of the seeding monomer assembly (81) through a profiling depth adjustment mechanism, and the profiling depth adjustment mechanism includes a profiling frame welding (841), a depth adjustment component and two rockers (847); the front end of the profiling frame welding (841) is installed on the rear end of the seeding frame of the seeding monomer assembly (81), the rear ends of the two rockers (847) are respectively rotatably installed on the left and right sides of the middle of the profiling frame welding (841), the two depth-limiting wheels of the depth-limiting wheel assembly (84) are respectively installed on the front ends of the two rockers (847), and the up-and-down movement is realized through the rockers (847), and the depth adjustment component is arranged above the two rockers (847), and the depth adjustment component is installed on the profiling frame welding (841) for controlling the profiling depth of the depth-limiting wheel.

8. An intelligent high-speed precision seeder according to claim 7, characterized in that: The depth adjustment component includes a profiling adjustment plate (842), a profiling stop block (843), a fixed shaft (844) and a profiling debugging bolt (845); an installation gap (8411) is provided in the middle of the upper end of the profiling frame welding (841), the vertical plate of the profiling adjustment plate (842) is inserted into the installation gap (8411), the profiling adjustment plate (842) is of an inverted T-shaped structure, a round hole is provided at the lower end of the vertical plate of the profiling adjustment plate (842), a first bearing (848) is installed in the round hole, the profiling adjustment plate (842) is rotatably installed on a main shaft (846) provided on the profiling frame welding (841) through the first bearing (848), a groove (8421) is opened on the bottom surface of the middle protruding portion of the profiling adjustment plate (842), the fixed shaft (844) is installed in the groove (8421), the upper end of the profiling stop block (843) is sleeved on the fixed shaft (844), the profiling stop block (843) straddles above the two rockers (847), and a threaded through hole penetrating through the two is provided on the profiling stop block (843) and the fixed shaft (844), and the profiling debugging bolt (845) can detachably fix the profiling stop block (843) and the fixed shaft (844) through the threaded through hole.

9. The intelligent high-speed precision seeder according to claim 2, wherein: The high-speed fertilization assembly (2) includes a fertilization disc assembly (21), a fertilization frame welded joint (22), a fertilization spring (23), a fertilization arm welded joint (24), a fertilization seat welded joint (25), and a fertilizer pipe (27); the fertilizer pipe (27) is welded to the fertilization frame welded joint (22), and the fertilizer pipe (27) is communicated with the fertilizer outlet of the fertilizer tank assembly (3) through a hose to introduce fertilizer into the fertilizer groove opened on the ground by the fertilization disc assembly (21). The fertilization disc assembly (21) is rotatably installed at the lower end of the fertilization frame welded joint (22), the middle part of the fertilization frame welded joint (22) is rotatably installed at the front end of the fertilization arm welded joint (24), a fertilization spring (23) is connected between the upper end of the fertilization frame welded joint (22) and the upper end of the fertilization arm welded joint (24), the rear end of the fertilization arm welded joint (24) is provided with a fertilization seat welded joint (25), and the fertilization seat welded joint (25) is detachably installed on the frame welded structure (11) of the frame assembly (1).

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