A high-efficiency sowing and fertilization system

Abstract

The present invention provides an efficient sowing and fertilizing system in the technical field of agricultural machinery, comprising a frame, a seed box connected to the frame, a plurality of seed dropping openings arranged at the bottom of the seed box, a seed meter fixedly connected to the lower side of the seed box corresponding to the position of each seed dropping opening, and characterized in that a liquid fertilizer box is connected to the frame, the seed box is behind the liquid fertilizer box, the seed box can move up and down, a plurality of seed box weight sensors corresponding to the seed meter are fixedly connected to the lower side of the seed box, a height-adjustable nozzle is connected to the frame behind the seed box, a liquid outlet pipe is connected to the liquid fertilizer box, the liquid outlet pipe is connected to the nozzle, and a float switch is connected to the lower part of the liquid fertilizer box; the present invention ensures the uniformity of sowing and realizes the implementation of liquid fertilizer.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural control, and in particular relates to a high-efficiency sowing and fertilization system. Background Art

[0002] China is a big agricultural country. Agricultural mechanization plays a vital role in the development of my country's modern agriculture. Rice, one of my country's three major grain crops, plays an important role in my country's food security. In the planting process, seeding machinery is widely used. Mechanical direct seeding has the advantages of saving labor, time, and effort, saving seeds and fertilizers, and high production efficiency.

[0003] In order to further improve the efficiency of agricultural planting, in the prior art, a composite operating machine integrating rotary tillage, sowing and fertilization is used for planting. The composite operating machine includes a frame, the front part of the frame is rotatably connected to a rotary tillage blade shaft, a plurality of rotary tillage blades are arranged on the rotary tillage blade shaft, a seed box is connected to the frame behind the rotary tillage blade shaft, and the front and rear positions of the seed box can be set according to actual needs. A plurality of seed dropping openings are arranged on the seed box, and a plurality of seed dischargers corresponding to the seed dropping openings are arranged on the lower side of the seed box. The seeds are discharged into the soil by the seed discharger. In this design, although automatic seeding can be achieved, the seeding amount cannot be detected during the operation, the uniformity of sowing and fertilization cannot be guaranteed, and the spraying of liquid fertilizer cannot be achieved. Summary of the invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to solve the technical problems in the prior art that the uniformity of sowing and the application of liquid fertilizer cannot be guaranteed. The present invention proposes an efficient sowing and fertilization system, which can detect the seeding amount during the operation of agricultural machinery, ensure the uniformity of sowing, and realize the implementation of liquid fertilizer.

[0005] The objective of the present invention is achieved in this way: a high-efficiency sowing and fertilizing system comprises a frame, the frame is connected with a seed box, a plurality of seed dropping ports are arranged at the bottom of the seed box, a seed meter is fixedly connected to the lower side of the seed box corresponding to the position of each seed dropping port, the seed meter is fixedly connected to the frame, a liquid fertilizer box is connected to the frame, the seed box is behind the liquid fertilizer box, the seed box can move up and down, a plurality of seed box weight sensors corresponding to the seed meter are fixedly connected to the lower side of the seed box, a height-adjustable nozzle is connected to the frame behind the seed box, a liquid outlet pipe is connected to the liquid fertilizer box, the liquid outlet pipe is connected to the nozzle, and a float switch is connected to the lower part of the liquid fertilizer box.

[0006] In the present invention, liquid fertilizer is contained in the liquid fertilizer box, and a control system is arranged in the walking device, and the control system includes a controller and an information processor; when working, the liquid fertilizer box transports liquid fertilizer into the nozzle, the seed meter is opened, and the seed meter discharges the seeds in the seed box onto the ground, and the seed box weight sensor detects the weight change of the seed box in real time, thereby calculating the seeding amount of the seed meter per unit time, and when the seeding amount exceeds the set seeding amount threshold range, the seed meter is controlled to continue to operate at the original speed, and when the seeding amount is lower than the set seeding amount threshold range, the seed meter is controlled to increase the seeding amount of the seed meter, otherwise, the seed meter is controlled to The device reduces the seeding amount of the seeding device; the nozzle is opened and the nozzle sprays liquid fertilizer; the float switch detects the height change of the liquid fertilizer in the liquid fertilizer box, the float switch sends the detected liquid fertilizer height signal to the signal processor in real time, the signal processor sends the processed liquid fertilizer height signal to the controller, when the liquid fertilizer height is lower than the position of the float switch, the controller controls to disconnect the liquid fertilizer delivery and implements water shortage protection; the present invention can realize the detection of the seeding amount, keep the seeding amount stable, and ensure the uniformity of the seeding amount; the nozzle sprays liquid fertilizer to provide the seeds with the nutrients required for growth; it can be applied to the composite operation of sowing and fertilization.

[0007] In order to further adjust the spraying amount, a pressure pump is fixedly connected to a frame on one side of the liquid fertilizer tank facing outward in the left-right direction, a connecting pipe is connected to the lower part of the liquid fertilizer tank, an electromagnetic flowmeter and a concentration sensor are connected to the connecting pipe in sequence, an end of the connecting pipe away from the liquid fertilizer tank is connected to the liquid inlet of the pressure pump, the liquid outlet pipe is connected to the liquid outlet of the pressure pump, and an end of the liquid outlet pipe away from the pressure pump is connected to the nozzle; in this design, the operation of the pressure pump is controlled, the flow in the connecting pipe is adjusted, so that the flow of the liquid fertilizer in the connecting pipe is maintained at the set flow, the pressure pump transports the pressurized liquid fertilizer to the nozzle through the liquid outlet pipe, and the nozzle sprays the liquid fertilizer.

[0008] In order to further adjust the concentration of the fertilizer liquid, a bracket and an adjusting fertilizer box are fixedly connected to the walking device in front of the frame, a plurality of fertilizer dischargers are fixedly connected to the upper side of the bracket, and a material box for placing fertilizers is fixedly connected to the upper side of each fertilizer discharger, the adjusting fertilizer box is below the material box, the lower part of the adjusting fertilizer box is connected to an adjusting pipe, a butterfly valve is installed on the adjusting pipe, the liquid outlet of the adjusting pipe is connected to a stirring liquid pump, the liquid outlet of the stirring liquid pump is connected to a stirring liquid pipe, the end of the stirring liquid pipe away from the stirring liquid pump is connected to the adjusting fertilizer box, the adjusting fertilizer box below the stirring liquid pipe is connected to a regulating liquid pipe, the regulating liquid pipe is connected to a regulating liquid pump, the liquid outlet of the regulating liquid pump is connected to a fertilizer outlet pipe extending to the liquid fertilizer tank, and the end of the fertilizer outlet pipe away from the bracket is connected to the upper part of the liquid fertilizer tank.

[0009] In order to further achieve the height adjustment of the pressing wheel, a plurality of linear drives are fixedly connected to the frame, and the linear drive is connected to a lifting rod that extends upward and can make reciprocating linear movements, and the lifting rod is connected to a liftable connecting rod, and a pressing wheel pressure sensor is fixedly connected to the lower side of the connecting rod, and a connecting frame is fixedly connected to the lower side of the pressing wheel pressure sensor, and the lower part of the connecting frame is rotatably connected to the pressing wheel; in this design, the pressing wheel pressure sensor detects the pressure of the pressing wheel exerted on the ground, and when the pressure exerted on the pressing wheel exceeds a set threshold value, the linear drive is actuated to make the lifting rod rise, and when the pressure exerted on the pressing wheel is less than the set threshold value, the linear drive is reversed to make the lifting rod descend, and when the pressure exerted on the pressing wheel is within the set threshold range, the linear drive stops.

[0010] In order to further realize the height and angle adjustment of the nozzle, the end of the liquid outlet pipe away from the pressure pump is connected to a liquid fertilizer pipe, and the liquid fertilizer pipe is a hose, which extends backward and is connected to the frame, and the end of the liquid fertilizer pipe extending backward is connected to the nozzle, and the left and right sides of the rear part of the frame are rotatably connected to the nozzle support plate, and the nozzle is fixedly connected to the nozzle support plate, and the left and right sides of the frame behind the liquid fertilizer tank are respectively connected to two linear drivers, and the linear driver is connected to a telescopic rod extending backward and upward, and the telescopic rod can move back and forth linearly, and the end of the telescopic rod extending upward is hinged to the nozzle support plate; the outer side of each nozzle support plate is connected to a nozzle height detection component, and n nozzles are provided and are fixed on the rear side of the nozzle support plate, and the nozzle height detection component includes two distance sensors and a fixed plate fixedly connected to the outer side of the nozzle support plate, and the fixed plate is fixed on the outward side An infrared emitting fixed seat 2 and a lower supporting seat 2 which are spaced apart in the height direction are fixedly connected, the infrared emitting fixed seat 2 is above the lower supporting seat 2, and movable rods 2 are slidably connected to the infrared emitting fixed seat 2 and the lower supporting seat 2, and a drag plate 2 is arranged on the lower side of the movable rod 2, and a buffer spring 2 is mounted on the movable rod 2, and the buffer spring 2 is between the infrared emitting fixed seat 2 and the lower supporting seat 2, and the distance sensor 2 is an infrared ranging sensor, and the infrared light emitted by the infrared ranging sensor is irradiated on the upper side of the drag plate 2; in this design, the nozzle height is detected by setting a nozzle height detection component, and the nozzle height is adjusted according to the detected nozzle height to control the action of the linear actuator 2, and when the telescopic rod is continuously extended outward, the nozzle height is adjusted upward, and when the telescopic rod is retracted inward, the nozzle height moves downward, and when the nozzle height is within the set height range, the linear actuator 2 stops.

[0011] In order to further realize the tillage depth detection, the left and right sides of the front part of the frame are fixedly connected with the frame side plates, the rotary tiller shaft is rotatably connected to the two frame side plates, and the outer side of the frame side plates is connected with a tillage depth detection component, and the tillage depth detection component includes an infrared emitting fixed seat fixed on the outer side of the frame side plate, a lower supporting seat is fixedly provided on the outer side of the frame side plate below the infrared emitting fixed seat, a movable rod is slidably connected to the infrared emitting fixed seat and the lower supporting seat, a limit step is provided on the upper side of the movable rod, and the limit step can abut against the upper side of the infrared emitting fixed seat, a distance sensor is fixedly connected to the infrared emitting fixed seat on the side of the movable rod away from the frame side plate, a drag plate is provided on the lower side of the movable rod, the distance sensor is arranged relative to the drag plate, and a buffer spring is mounted on the movable rod, and the buffer spring is between the infrared emitting fixed seat and the lower supporting seat.

[0012] In order to further adjust the seed filling amount, the seed meter includes a seed metering shell with an opening, a plurality of seed dropping openings are arranged on the seed box, each opening corresponds to the seed dropping opening one by one, and the opening is connected to the inner cavity of the seed box through the seed dropping opening, and the seed metering shell is rotatably connected to the seed metering shaft, and the seed metering shaft in the seed metering shell is connected to a socket wheel, and a plurality of sliding grooves are arranged on the circumference of the socket wheel, and a push plate is installed in the sliding groove, one end of the push plate extends into the socket of the socket wheel, and the other end of the push plate can slide along the outer side of the circumference of the socket wheel at the sliding groove, and the other end of the push plate can contact the socket wheel, and one end of the push plate is provided with a material trough connected to the socket, and the socket and the material trough form a space for accommodating seeds, and the outer side of the push plate is flush with the outer side of the socket wheel, and after the position of the push plate is adjusted, the push plate is fixed to the socket wheel The invention relates to a seed dispensing shell having a feed port and a connection. The upper side of the seed dispensing shell is provided with a feed port. The outward side of the socket wheel in the axial direction is connected with an adjusting disk, and a plurality of connecting and adjusting parts are arranged on the adjusting disk. The outward side of the socket wheel is provided with connecting grooves corresponding to the positions of the connecting and adjusting parts, and the connecting and adjusting parts can slide along the connecting grooves. The adjusting disk is provided with a plurality of adjusting grooves corresponding to the positions of the sliding grooves, and the push plate simultaneously abuts against the adjusting disk. After the position of the push plate is adjusted, the end of the push plate extending out of the socket wheel is fixedly connected to the adjusting disk. A soft brush is fixedly connected to the downward side of the seed dispensing shell, and the soft brush faces the socket wheel and is tangent to the wheel surface of the socket wheel. An isolation ring is connected to the outer side of the socket wheel, and an isolation groove corresponding to the position of the space is provided on the isolation ring. In this design, the seeds sliding out of the space fall into the isolation groove, thereby improving the adequacy of seed filling in the space.

[0013] To facilitate disassembly and assembly, a cover plate is connected to the outside of the seed discharging shell corresponding to the opening, and a flange is fixedly connected to the outside side of the isolation ring in the axial direction. The seed discharging shaft is rotatably connected to the flange, one end of the seed discharging shaft extends out of the seed discharging shell, and the other end of the seed discharging shaft extends out of the flange.

[0014] In order to further improve the fertilizer discharge effect, a seed protection belt is also connected to the seed discharge shell, the belt surface of the seed protection belt is tightly attached to the outer circumference of the eye wheel, and the lower part of the seed protection belt extends toward the seed discharge port; in this design, the soft brush brushes the seeds outside the space into the space.

[0015] In order to further prevent the seeds from sliding down from the accommodating cavity along the outer side of the socket wheel, a closing plate is provided at the lower part of the inner wall of the seed discharging shell, a groove is formed on the closing plate, a sealing belt is connected in the groove, the sealing belt extending out of the closing plate is inclined downward, the upward side of the sealing belt is flush with the upward side of the closing plate, the inclination of the lower part of the sealing belt on the downward inclined sealing belt is greater than the inclination of the upper part of the sealing belt, and the inclination is relative to the vertical direction, the upper part of the sealing belt fits against the outer side of the socket wheel, and at least one positioning groove 1 is formed on the downward side of the upper part of the sealing belt, and an inclined panel which is inclined downward and extends in the direction of the socket wheel discharge port is provided on the inner wall of the seed discharging shell below the closing plate, a positioning groove 2 corresponding to the positioning groove 1 is formed on the inclined panel, and the sealing belt is connected to the closure through the positioning groove 1. A compression spring is provided, and the end portion of the compression spring extending obliquely downward extends into the corresponding positioning groove 2 and is connected to the inclined plate. The compression spring is in a compressed state, and a accommodating chamber for accommodating seeds is formed between the socket wheel on one side in the left and right directions, the closing plate, the sealing belt, the inner wall of the seed discharging shell and the feed port, and an installation chamber for installing a seed protection belt is formed between the socket wheel and the inner wall of the seed discharging shell on the other side in the left and right directions; in this design, the upper part of the sealing belt is tightly fitted to the outer side of the socket wheel under the action of the compression spring, and the lower part of the sealing belt will not be attached to the socket wheel. When the sliding groove rotates to the position of the sealing belt, the sealing belt will not extend into the sliding groove, so that the sealing belt is always attached to the outer side of the socket wheel, ensuring that the seeds in the accommodating chamber will not be discharged outward, further improving the uniformity of seed discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view of the present invention.

[0017] Figure 2 It is a side view of the internal structure of the present invention.

[0018] Figure 3 It is a structural diagram of the tillage depth detection component of the present invention.

[0019] Figure 4 This is a structural diagram of the connection between the seed box and the fixed crossbeam in the present invention.

[0020] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0021] Figure 6 It is a structural schematic diagram of the connection between the liquid fertilizer tank and the pressure pump in the present invention.

[0022] Figure 7It is a structural schematic diagram of the support, the material box and the fertilizer regulating box connected together in the present invention.

[0023] Figure 8 It is a front view of the support, the material box and the fertilizer regulating box connected together in the present invention.

[0024] Fig. 9 This is a structural diagram of the nozzle support plate, nozzle and height detection assembly connected together in the present invention.

[0025] Fig.10 for Figure 1 A partial enlarged view of point B in the middle.

[0026] Fig.11 It is the front view of the fertilizer discharging device in the present invention.

[0027] Fig.12 It is a three-dimensional structural diagram of the fertilizer discharging device in the present invention.

[0028] Fig.13 The three-dimensional structure before the flange of the fertilizer dispensing device is installed in the present invention Figure 1 .

[0029] Fig.14 for Fig.13 A partial enlarged view of point C in the middle.

[0030] Fig.15 The three-dimensional structure before the fertilizer dispensing device of the present invention is installed with the cover plate Figure 1 .

[0031] Fig.16 The three-dimensional structure before the fertilizer dispensing device of the present invention is installed with the cover plate Figure 2 .

[0032] Fig.17 for Fig.16 A partial enlarged view of point D in the middle.

[0033] Fig.18 This is a front view of the fertilizer discharger of the present invention before the cover plate is installed and after the fertilizer discharge shaft is hidden.

[0034] Fig.19 This is a three-dimensional structural diagram of the fertilizer discharger of the present invention before the cover plate is installed and after the fertilizer discharge shaft is hidden.

[0035] Fig. 20 It is a three-dimensional structural diagram of the socket wheel in the present invention.

[0036] Fig.21 A three-dimensional structural diagram of the push plate in the present invention.

[0037] Fig. 22 for Fig.19 A partial enlarged view of point E in the middle.

[0038] Fig.23 It is a schematic diagram of the positions of the fertilizing furrow opener and the sowing furrow opener in the present invention.

[0039] Fig.24 It is a schematic diagram of the positional relationship between the fertilizer ditch group and the pressing wheel in the present invention.

[0040] In the figure: 1 nozzle, 2 nozzle height detection component, 201 drag plate 2, 202 buffer spring 2, 203 fixed plate, 204 limit step 2, 205 movable rod 2, 206 infrared emission fixed seat 2, 207 distance sensor 2, 208 lower support seat 2, 3 nozzle support plate, 4 pressing wheel lifting actuator, 401 connecting rod, 402 lifting rod, 403 linear drive 1, 404 connecting frame, 5 pressing wheel lifting electromagnetic control valve, 6 oil return tank, 7 frame, 8 liquid fertilizer tank, 9 frame side plate, 10 gearbox, 11 frame lifting electromagnetic control valve, 12 moving slot, 13 suspension frame, 14 tillage depth detection component, 1401 infrared emission fixed seat 1, 14 ... Impact spring, 1403 lower support seat, 1404 drag plate one, 1405 distance sensor one, 1406 limit step one, 1407 movable rod one, 15 driving sprocket, 16 rotary tillage knife, 17 fertilizer furrowing wheel, 18 sowing furrow opener, 19 linear drive two, 20 driven sprocket, 21 pressure sensor of pressure wheel, 22 telescopic rod, 23 screw, 24 seed box, 25 seeding motor, 26 pressure pump, 27 connecting pipe, 28 liquid outlet pipe, 29 seeding device, 2901 seeding shaft, 2902 seeding shell, 2903 flange, 2904 cover plate, 2905 sealing belt, 2906 closing plate, 2907 feed port, 2908 isolation ring, 2909 positioning groove two, 2910 connecting adjustment piece, 2911 push plate, 2912 sliding groove, 2913 adjusting plate, 2914 socket wheel, 2915 accommodating chamber, 2916 compression spring, 2917 soft brush, 2918 seed protection belt, 2919 space, 2920 isolation groove, 2921 material trough, 2922 socket, 2923 seed discharge port, 2924 inclined plate, 2925 adjusting groove, 2926 connecting hole, 2927 connecting bolt, 30 liquid fertilizer pipe, 31 trenching bracket, 32 seed box weight sensor, 33 fertilizer pipe , 34 fixed crossbeam, 35 connecting screw, 36 pressing wheel, 37 transmission chain, 38 output shaft, 39 support plate, 40 limit nut, 41 connecting nut, 42 material box, 43 bracket, 44 concentration sensor one, 45 electromagnetic flowmeter, 46 fertilizer adjustment box, 47 float switch, 48 regulating liquid pump, 49 concentration sensor two, 50 stirring liquid pipe, 51 stirring liquid pump, 52 butterfly valve, 53 regulating pipeline, 54 fertilizer discharger, 55 fertilizer discharge motor, 56 fertilizer discharge pipe, 57 seed ditch, 58 fertilizer ditch, 59 seed drop port. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings.

[0042] like Figure 1 to Figure 24 The high-efficiency sowing and fertilizing system shown in the figure includes a frame 7, a seed box 24 is connected to the frame 7 behind the liquid fertilizer tank 8, a plurality of seed dropping ports 59 are arranged at the bottom of the seed box 24, and a seeding device 29 is fixedly connected to the lower side of the seed box 24 corresponding to the position of each seed dropping port 59, and the liquid fertilizer tank 8 is connected to the frame 7. The seed box 24 can move up and down, and a plurality of seed box weight sensors 32 corresponding to the seeding device 29 are fixedly connected to the lower side of the seed box 24. The structure for realizing the weight detection of the seed box 24 is specifically as follows: A fixed crossbeam 34 is fixed on the frame 7, and a plurality of support plates 39 are arranged on one side of the fixed crossbeam 34 in the front-to-back direction. Two connecting screws 35 are arranged on one side of the seeding housing 2902 of the seeding device 29 facing the fixed crossbeam 34. The two connecting screws 35 are symmetrically arranged about the center of the support plate 39 in the height direction. The connecting screws 35 pass through the support plate 39, and the connecting nuts 41 are screwed on the connecting screws 35 so that the connecting nuts 41 are pressed against the support plate 39, so that the seeding device 29 The seeding shell 2902 is fixed relative to the frame 7, and the left and right sides of the seed box 24 are respectively connected with screws 23 extending out of the movable groove 12, and the limit nuts 40 are threadedly connected to the screws 23 so that the limit nuts 40 are in contact with the frame 7. A plurality of seeding ports 2923 are arranged at the bottom of the seed box 24, and the seeding ports 2923 are connected to the seed inlet of the seeding device 29; a plurality of nozzles 1 with adjustable heights are connected to the frame 7 behind the seed box 24, and a liquid outlet pipe 28 is connected to the liquid fertilizer tank 8, and the liquid outlet pipe 28 is connected to the nozzle 1 connection; a pressure pump 26 is fixedly connected to the frame 7 on one side facing outward in the left and right direction of the liquid fertilizer tank 8, a connecting pipe 27 is connected to the lower part of the liquid fertilizer tank 8, an electromagnetic flowmeter 45 and a concentration sensor 44 are connected to the connecting pipe 27 in sequence, one end of the connecting pipe 27 away from the liquid fertilizer tank 8 is connected to the liquid inlet of the pressure pump 26, a liquid outlet pipe 28 is connected to the liquid outlet of the pressure pump 26, one end of the liquid outlet pipe 28 away from the pressure pump 26 is connected to the nozzle 1, and a float switch 47 is connected to the lower part of the liquid fertilizer tank 8.

[0043] In order to further adjust the concentration of the fertilizer solution, a bracket 43 and an adjusting fertilizer box 46 are fixedly connected to the walking device in front of the frame 7, and a plurality of fertilizer dischargers 54 are fixedly connected to the upper side of the bracket 43. A material box 42 for placing fertilizers is fixedly connected to the upper side of each fertilizer discharger 54. A fertilizer pipe 33 extending downward is connected to the fertilizer outlet of each fertilizer discharger 54. The fertilizer pipe 33 extends into the adjusting fertilizer box 46. The adjusting fertilizer box 46 is below the material box 42. The lower part of the adjusting fertilizer box 46 is connected to an adjusting pipe 53, and a butterfly valve 52 is installed on the adjusting pipe 53. The liquid outlet of 53 is connected to a stirring liquid pump 51, the liquid outlet of the stirring liquid pump 51 is connected to a stirring liquid pipe 50, the stirring liquid pipe 50 is connected to a concentration sensor 49, the end of the stirring liquid pipe 50 away from the stirring liquid pump 51 is connected to the regulating fertilizer tank 46, the regulating fertilizer tank 46 below the stirring liquid pipe 50 is connected to a regulating liquid pipe, the regulating liquid pipe is connected to a regulating liquid pump 48 in the direction away from the regulating fertilizer tank 46, the liquid outlet of the regulating liquid pump 48 is connected to a fertilizer outlet pipe 56 extending to the liquid fertilizer tank 8, and the end of the fertilizer outlet pipe 56 away from the bracket 43 is connected to the upper part of the liquid fertilizer tank 8.

[0044] In order to further achieve the height adjustment of the pressing wheel 36, it also includes a pressing wheel 36 lifting actuator 4, which includes a plurality of linear drivers 403 fixedly connected to the frame 7, and the plurality of linear drivers 403 are arranged in a line in the left and right directions. The linear driver 403 is connected with a lifting rod 402 that extends upward and can make reciprocating linear movements, and the lifting rod 402 is connected with a lifting connecting rod 401, and a pressing wheel 36 pressure sensor is fixedly connected to the lower side of the connecting rod 401, and a connecting frame 404 is fixedly connected to the lower side of the pressing wheel 36 pressure sensor, and the lower side of the connecting frame 404 is rotatably connected to the pressing wheel 36, and a pressing wheel 36 lifting solenoid control valve 5 and a return oil tank 6 are connected to the frame 7, and the pressing wheel 36 lifting solenoid control valve 5 is connected to the return oil tank 6, and the action of the linear driver 403 is controlled by the pressing wheel 36 lifting solenoid control valve 5 to adjust the height of the pressing wheel 36.

[0045] In order to further realize the height and angle adjustment of the nozzle 1, the end of the liquid outlet pipe 28 away from the pressure pump 26 is connected to a liquid fertilizer pipe 30, and the liquid fertilizer pipe 30 is a hose. The liquid fertilizer pipe 30 extends backward and is connected to the frame 7. The end of the liquid fertilizer pipe 30 extending backward is connected to the nozzle 1. The left and right sides of the rear part of the frame 7 are rotatably connected to the nozzle support plate 393. The nozzle 1 is fixedly connected to the nozzle support plate 393. The left and right sides of the frame 7 behind the liquid fertilizer tank 8 are respectively connected to the linear drive 219, and the linear drive 219 is connected to a telescopic rod 22 extending backward and upward. The telescopic rod 22 can move back and forth linearly, and the end of the telescopic rod 22 extending upward is hinged to the nozzle support plate 393; the outer side of each nozzle support plate 393 is connected to a nozzle height detection component 2, and n nozzles 1 are provided and are all fixed on the rear side of the nozzle support plate 393. The nozzle height detection component 2 includes a distance sensor 207 and a fixedly connected to the nozzle The fixing plate 203 outside the support plate 393 is fixedly connected to the infrared emitting fixing seat 206 and the lower supporting seat 1403 208 which are arranged at intervals in the height direction on the outward side of the fixing plate 203. The infrared emitting fixing seat 206 is above the lower supporting seat 1403 208. The infrared emitting fixing seat 206 and the lower supporting seat 1403 208 are slidably connected to the movable rod 205. The upper side of the movable rod 205 is provided with a limit step 206. 4. The limit step 204 can abut against the upper side of the infrared emitting fixed seat 206. The lower side of the movable rod 205 is provided with a drag plate 201. The movable rod 205 is provided with a buffer spring 1402 202. The buffer spring 1402 202 is between the infrared emitting fixed seat 206 and the lower support seat 1403 208. The distance sensor 207 is an infrared ranging sensor. The infrared light emitted by the infrared ranging sensor is irradiated on the upper side of the drag plate 201.

[0046] In order to further realize the tillage depth detection, the left and right sides of the front of the frame 7 are fixedly connected with the frame side plates 9, the rotary tiller 16 shaft is rotatably connected to the two frame side plates 9, a gearbox 10 is installed on the frame 7, and the power output shaft 38 is the power input of the gearbox 10. The front side of the frame 7 is provided with a suspension frame 13 for connecting with the tractor, and the frame 77 is connected to the tractor via the suspension frame 13 so that it can be raised and lowered (this is the prior art), and a frame lifting solenoid control valve 11 is connected to the frame 7 to control the lifting and lowering of the frame 7; the outer side of the frame side plate 9 is connected with a tillage depth detection component 14, and the tillage depth detection component 14 includes an infrared emission fixing seat 1401 fixed on the outer side of the frame side plate 9, and a lower support seat 1403 is fixed on the outer side of the frame side plate 9 below the infrared emission fixing seat 1401, and the infrared emission fixing seat 1401 is fixed with a lower support seat 1403. A movable rod 1407 is slidably connected to the fixed seat 1401 and the lower support seat 1403. A limit step 1406 is provided on the upper side of the movable rod 1407. The limit step 1406 can abut against the upper side of the infrared emitting fixed seat 1401. A distance sensor 1405 is fixedly connected to the infrared emitting fixed seat 1401 which is away from the side plate 9 of the frame and faces outward. The distance sensor 1405 is also an infrared ranging sensor. The infrared light emitted by the infrared ranging sensor is on the upper side of the drag plate 1401. A drag plate 1404 is provided on the lower side of the movable rod 1407. The distance sensor 1405 is arranged relative to the drag plate 1404. A buffer spring 1402 is mounted on the movable rod 1407. The buffer spring 1402 is between the infrared emitting fixed seat 1401 and the lower support seat 1403.

[0047] In order to further adjust the seed filling amount, the seed metering device 29 includes a seed metering shell 2902 with an opening, and a plurality of seed dropping ports 59 are arranged on the seed box 24, each opening corresponds to the seed dropping port 59 one by one, and the opening is connected to the inner cavity of the seed box 24 through the seed dropping port 59. A seed metering shaft 2901 is rotatably connected to the seed metering shell 2902, and a socket wheel 2914 is connected to the seed metering shaft 2901 in the seed metering shell 2902. A plurality of sliding grooves 2912 are arranged on the circumference of the socket wheel 2914, and a push plate 2911 is installed in the sliding groove 2912. One end of the push plate 2911 extends into the socket 2922 of the socket wheel 2914, and a connecting hole 2926 is opened on the push plate 2911 for convenient connection with the socket wheel 2914, and a connecting bolt 292 is used to connect the push plate 2911 to the socket wheel 2914. The push plate 2911 is connected to the socket wheel 2914 through the connecting hole 2926. The other end of the push plate 2911 can slide along the outer side of the circumference of the socket wheel 2914 at the sliding groove 2912. The other end of the push plate 2911 can abut against the socket wheel 2914. One end of the push plate 2911 is provided with a material groove 2921 connected to the socket 2922. The socket 2922 and the material groove 2921 form a space 2919 for accommodating seeds. The outer side of the push plate 2911 is flush with the outer side of the socket wheel 2914. After the position of the push plate 2911 is adjusted, the push plate 2911 is fixedly connected to the socket wheel 2914. A feed port 2907 is provided on the upper side of the seed dispensing housing 2902. The socket wheel 2914 is connected to an adjusting disk 2907 on the outward side in the axial direction. 13. A plurality of connection adjustment members 2910 are arranged on the adjustment disk 2913. A connection groove corresponding to the position of the connection adjustment member 2910 is arranged on the outward side of the socket wheel 2914. The connection adjustment member 2910 can slide along the connection groove. A plurality of adjustment grooves 2925 corresponding to the position of the sliding groove 2912 are opened on the adjustment disk 2913. The push plate 2911 is simultaneously in contact with the adjustment disk 2913. After the position of the push plate 2911 is adjusted, the push plate 2911 extends out of the end of the socket wheel 2914 and is fixedly connected to the adjustment disk 2913. A soft brush 2917 is fixedly connected to the downward side of the seeding housing 2902. The soft brush 2917 faces the socket wheel 2914 and is tangent to the wheel surface of the socket wheel 2914. The outer side of the socket wheel 2914 is connected There is an isolation ring 2908, and an isolation groove 2920 corresponding to the position of the space 2919 is opened on the isolation ring 2908; a cover plate 2904 is connected to the outer side of the seed discharging shell 2902 corresponding to the opening, and the cover plate 2904 is on the side of the isolation ring 2908 facing outward in the axial direction, and a flange 2903 is fixedly connected to the outer side of the cover plate 2904, and the seed discharging shaft 2901 is rotatably connected to the flange 2903, one end of the seed discharging shaft 2901 extends out of the seed discharging shell 2902, and the other end of the seed discharging shaft 2901 extends out of the flange 2903; a seed discharging shell 2902 is also connected to a seed protection belt 2918, and the belt surface of the seed protection belt 2918 is tightly attached to the outer side of the circumference of the socket wheel 2914, and the lower part of the seed protection belt 2918 extends toward the seed discharging port 2923;A closing plate 2906 is provided at the lower part of the inner wall of the seed discharging shell 2902, and a groove is provided on the closing plate 2906, and a sealing belt 2905 is connected in the groove. The sealing belt 2905 extending out of the closing plate 2906 is tilted downward, and the upward side of the sealing belt 2905 is flush with the upward side of the closing plate 2906. On the downwardly tilted sealing belt 2905, the inclination of the lower part of the sealing belt 2905 is greater than the inclination of the upper part of the sealing belt 2905, and the inclination is relative to the vertical direction. The upper part of the sealing belt 2905 is attached to the outer side of the socket wheel 2914, and at least one positioning groove is provided on the downward side of the upper part of the sealing belt 2905. The seed discharging shell 2902 below the closing plate 2906 The inner wall of the socket wheel 2914 is provided with an inclined plate 2924 which is inclined downward and extends in the direction of the discharge port of the socket wheel 2914. The inclined plate 2924 is provided with a second positioning groove 2909 corresponding to the first positioning groove. The sealing belt 2905 is connected with a compression spring 2916 through the first positioning groove. The end of the compression spring 2916 which extends downward in an inclined manner extends into the corresponding second positioning groove and is connected to the inclined plate 2924. The compression spring 2916 is in a compressed state. A receiving cavity 2915 for receiving seeds is formed between one side of the socket wheel 2914 in the left-right direction, the closing plate 2906, the sealing belt 2905, the inner wall of the seed discharging housing 2902 and the feed port 2907. The socket wheel 2914 is arranged in the left-right direction. An installation cavity for installing the seed protection belt 2918 is formed between the other side and the inner wall of the seeding shell 2902; in this design, when installing the seeding device 29, before closing the cover plate 2904, the size of each space 2919 is adjusted according to the actual situation. When the other end of the push plate 2911 is in contact with the socket wheel 2914, the space 2919 is the smallest at this time. Force is applied to one end of the connecting adjustment member 2910 extending out of the adjustment disk 2913, and the connecting adjustment member 2910 rotates in the connecting groove. The adjustment disk 2913 rotates around the rotating shaft, so that the push plate 2911 slides toward the outside of the socket wheel 2914 away from the socket 2922. The space 2919 becomes larger. When the space 2919 When the required size is adjusted, the connecting adjustment member 2910 connects the push plate 2911 and the socket wheel 2914 together to adjust the size of the space 2919, that is, to adjust the seed filling amount, which is convenient to adjust. In addition, the space 2919 is always in the isolation groove 2920. After the adjustment of the seed filling space 2919 is completed, the cover plate 2904 is fixedly connected to the outer side of the shell, and the flange 2903 is pressed on the rotating shaft through the bearing, and finally the flange 2903 and the cover plate 2904 are fixedly connected together; the upward end of the compression spring 2916 is glued together with the downward side of the sealing belt 2905, and the downward end of the compression spring 2916 is fixedly connected to the inclined plate 2924;When sowing with the present invention, seeds are continuously filled into the accommodating chamber 2915, and the accommodating chamber 2915 is always full of seeds. The highest position of the filled seeds is lower than the highest point of the socket wheel 2914, and the highest position of the filled seeds is generally 2 / 3-4 / 5 of the highest point of the socket wheel 2914. The seed particles squeeze each other, and the rotation of the shaft drives the rotation of the socket wheel 2914, and the movement direction of the shaft is controlled to make the socket wheel 2914 rotate from the accommodating chamber 2915 to the direction of the seed protection belt 2918. When space 2919 enters the accommodating chamber 2915, the seeds are immediately filled into the space 2919, and the socket wheel 2914 continues to rotate. When the space 2919 filled with seeds leaves the accommodating chamber 2915, the seeds are When the space 2919 is always in the isolation groove 2920, the soft brush 2917 brushes the seeds outside the space 2919 and in the isolation groove 2920 into the space 2919, and the socket 2922 is fully filled with seeds. The upper part of the sealing belt 2905 is tightly attached to the outer side of the socket wheel 2914 under the action of the compression spring 2916, and the lower part of the sealing belt 2905 will not be attached to the socket wheel 2914. When the sliding groove 2912 rotates to the position of the sealing belt 2905, the sealing belt 2905 will not extend into the sliding groove 2912, so that the sealing belt 2905 is always attached to the outer side of the socket wheel 2914, ensuring that the seeds in the accommodating cavity 2915 will not be discharged outward, further improving the uniformity of seeding, and the seeding amount is accurate and stable. ;

[0048] In order to realize the action of opening the seed furrow 58, a plurality of furrowing brackets 4331 are arranged on the frame 7 between the seed box 24 and the liquid fertilizer box 8, and the lower part of the furrowing bracket 4331 is rotatably connected to the fertilizer furrowing wheel 17, and in the left and right directions, the position of each fertilizer furrowing wheel 17 corresponds to the position of the nozzle 1, and a plurality of sowing furrow openers 18 (the sowing furrow openers 18 are the prior art) are arranged on the frame 7 between the fertilizer furrowing wheel 17 and the seed box 24, and in the left and right directions, each sowing furrow opener 18 corresponds one by one to the position of the seed metering device 29, and each sowing furrow opener 18 covers the position of the seed discharge port 2923 of the corresponding seed metering device 29, wherein a fertilizer furrowing wheel 17 is arranged between two adjacent sowing furrow openers 18, and the side of the fertilizer furrowing wheel 17 adjacent to the sowing furrow opener 18 and facing the sowing furrow opener 18 is flush with the side of the sowing furrow opener 18 facing the fertilizer furrowing wheel 17 (such as Fig.24As shown), this is the prior art, and it is only necessary to make the positions of the sowing furrow opener 18 and the fertilizing furrow opener wheel 17 in the left and right directions cover the corresponding seed discharge port 2923 and the position of the nozzle 1 respectively; the furrow opened by the fertilizing furrow opener wheel 17 is a fertilizer furrow 59, and the furrow opened by the sowing furrow opener 18 is a seed furrow 58, and the seed furrow 58 is adjacent to the fertilizer furrow 59. The adjacent seed furrow 58 and fertilizer furrow 59 are called a seed-fertilizer furrow group. In a group of seed-fertilizer furrow groups, in the left and right directions, the pressing wheel 36 is away from the fertilizer furrow 59 and is arranged relative to the seed furrow 58, and the side of the pressing wheel 36 arranged relative to the seed furrow 58 is flush with the edge of the seed furrow 58 (as shown in FIG. Fig.23 As shown); the structure for realizing the rotation of the seeding shaft 2901 is specifically as follows: a seeding motor 25 is fixedly connected to the frame 7 behind the fertilizing and furrowing wheel 17, a driving sprocket 15 is connected to the output shaft 38 of the seeding motor 25, a driven sprocket 21 is connected to the seeding shaft 2901 extending outward of the seeding shell 2902, the driving sprocket 15 is connected to the driven sprocket 21 via a transmission chain 37, a fertilizer motor 55 speed regulator is also connected to the frame 7, and the speed of the seeding motor 2523 is adjusted by controlling the fertilizer motor 55 speed regulator.

[0049] In the present invention, the regulating fertilizer box 46 is filled with clean water, and the walking device is provided with a control system, which includes a controller, an information processor and a display. The display shows the real-time concentration value, the clean water value that needs to be poured into the regulating fertilizer box 46, the height of the nozzle 1, the real-time seeding amount and the pressure value of the pressing wheel 36; the rotation speed of the seeding shaft 2901 is controlled by the seeding motor 25, and the faster the rotation speed of the seeding shaft 2901, the greater the seeding amount per unit time; before sowing and fertilizing, liquid fertilizer is first poured into the liquid fertilizer box 8. The specific working process is that the fertilizer discharger 54 works to control the action of each fertilizer discharge motor 55, so that the fertilizer in the material box 42 is sent into the regulating fertilizer box 46 according to the ratio, and the stirring liquid pump 51 is driven The butterfly valve 52 is opened, and the liquid in the fertilizer tank 46 is continuously stirred to mix the fertilizer evenly in the clean water. When the fertilizer fed into the fertilizer tank 46 reaches the set value, the corresponding fertilizer discharger 54 stops working. After the stirring liquid pump 51 has worked for a certain period of time, the concentration sensor 49 is energized, and the concentration sensor 49 detects the concentration of the liquid fertilizer in the stirring liquid pipe 50. If the concentration of the liquid fertilizer is within the set concentration threshold, the fertilizer discharger 54 does not work. If the concentration of the liquid fertilizer is lower than the set concentration threshold, the amount of fertilizer required is calculated based on the concentration difference, and the controller sends the corresponding fertilizer discharge instruction to the fertilizer discharge motor 55. Each fertilizer discharge motor 55 is activated to input the corresponding fertilizer into the fertilizer tank 46. The amount of fertilizer reaches When the amount of fertilizer is calculated, the corresponding fertilizer discharge motor 55 stops working. If it is higher than the set concentration threshold, the amount of clean water needed to adjust the concentration is calculated based on the concentration difference, the controller sends out an alarm, and the display shows how much volume of clean water needs to be poured into the fertilizer box. The staff pours clean water into the fertilizer box, and the stirring liquid pump 51 continues to work for a certain period of time. The concentration sensor 2 49 detects the liquid fertilizer concentration value to make the liquid fertilizer concentration within the set threshold range; when working, the drag plate 1404 senses the height change of the ground, and the distance sensor 1405 detects the distance change between it and the drag plate 1404, and controls the action of the lifting actuator between the tractor and the frame 7, so that the tillage depth is within the set tillage depth range. The seed box weight sensor 32 detects the weight of the seed box 24 in real time. The seeding amount per unit time can be calculated by the weight change of the seed box 24. When the seeding amount is within the seeding amount threshold range, the seeding motor 25 continues to operate at the original speed; the pressure sensor of the pressing wheel 36 detects the pressure of the pressing wheel 36 on the ground. When the pressure on the pressing wheel 36 exceeds the set threshold, the linear drive 403 is actuated to raise the lifting rod 402. When the pressure on the pressing wheel 36 is less than the set threshold, the linear drive 403 reverses to lower the lifting rod 402. When the pressure on the pressing wheel 36 is within the set threshold range, the linear drive 403 stops moving.The pressure pump 26 is controlled to operate, and the electromagnetic flowmeter 45 detects the flow of the connecting pipe 27 in real time. If the detected flow value is lower than the set flow threshold, the power of the plunger pump is increased, and the flow of the connecting pipe 27 is increased. If the detected flow value is within the set flow threshold range, the plunger pump maintains the original power to work. If the detected flow value is greater than the set flow threshold range, the power of the plunger pump is reduced, and the flow of the connecting pipe 27 is reduced. The plunger pump extracts liquid fertilizer of a certain pressure and sequentially delivers it to the nozzle 1 through the fertilizer outlet pipe 56 and the liquid fertilizer pipe 30. The nozzle 1 is opened and the nozzle 1 sprays liquid fertilizer, so that the spraying amount of the liquid fertilizer sprayed by the nozzle 1 is kept balanced; the distance sensor detects the height change of the carriage 201, and calculates the height H between the nozzle 1 and the ground according to the detected distance between the distance sensor and the carriage 201; 实 , when H 实 When the height threshold of the nozzle 1 is exceeded, the linear actuator 219 is controlled to move, so that the telescopic rod 22 is retracted downward, the nozzle support plate 393 swings downward, and the nozzle 1 descends. 实 When the height of the nozzle 1 is less than the set threshold, the linear actuator 2 19 is controlled to move in the opposite direction, so that the telescopic rod 22 extends upward, the nozzle support plate 393 swings upward, and the nozzle 1 rises. 实 When the nozzle 1 is within the set height threshold range, the linear driver 19 is controlled to stop; the float switch 47 detects the height change of the liquid fertilizer in the liquid fertilizer tank 8, and the float switch 47 sends the detected liquid fertilizer height signal to the signal processor in real time, and the signal processor sends the processed liquid fertilizer height signal to the controller. When the liquid fertilizer height is lower than the position of the float switch 47, the controller controls the pressure pump to stop and implement water shortage protection; in the present invention, the seed box weight sensor 32 and the structural design between the seed box 24 and the frame 7 are used to realize real-time detection of the seeding amount, and the rotation speed of the seeding motor 25 is adjusted according to the detected seeding amount to realize the adjustment of the seeding amount, so that the seeding amount per unit time remains stable and the uniformity of the sowing amount is ensured; the pressure of the pressing wheel 36 on the ground is detected, and the lifting and lowering of the pressing wheel 36 are controlled. The pressure of the pressing wheel 36 on the ground is reduced, so that the pressure of the pressing wheel 36 on the ground remains balanced; at the same time, the amount of spraying is adjusted to make the spraying more uniform. At the same time, the height of the nozzle 1 from the ground is detected in real time through the structural design among the nozzle height detection component 2, the nozzle support plate 393, the nozzle 1, and the linear drive 19, so as to control the action of the linear drive 19, and realize the height adjustment of the nozzle 1, so that the distance between the nozzle 1 and the ground remains constant, thereby improving the fertilization effect; in addition, in the structure of the seeding device 29, the size of the seed filling space 2919 is adjustable, and the adjustment is convenient; the space 2919 is fully filled with fertilizer, and the seeds in the accommodating chamber 2915 will not be discharged outward, only the space 2919 is filled with seeds and discharged outward, the seeding is accurate and stable, and the seeding error is reduced; the present invention can be applied to the composite operation of rotary tillage, sowing and fertilization.

[0050] The forward direction of the present invention is the front direction, and the direction opposite to the forward direction is the rear direction. Figure 1 In the figure, the direction indicated by the arrow is forward, and the direction perpendicular to the paper surface is left and right.

[0051] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments. Those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. An efficient sowing and fertilizing system, comprising a frame, a seed box connected to the frame, a plurality of seeding ports arranged at the bottom of the seed box, a seeding device fixedly connected to the lower side of the seed box corresponding to each seeding port, a suspension frame for connecting to a tractor is provided on the front side of the frame, and the frame is connected to the tractor via the suspension frame in a liftable manner, characterized in that: The frame is connected with a liquid fertilizer box, and the seed box is behind the liquid fertilizer box. The seed box can move up and down, and a plurality of seed box weight sensors corresponding to the seed metering device are fixedly connected to the lower side of the seed box. A height-adjustable nozzle is connected to the frame behind the seed box, and a liquid outlet pipe is connected to the liquid fertilizer box, and the liquid outlet pipe is connected to the nozzle. A float switch is connected to the lower part of the liquid fertilizer box, and a liquid fertilizer pipe is connected to the end of the liquid outlet pipe away from the pressure pump. The liquid fertilizer pipe is a hose, which extends backward and is connected to the frame, and one end of the liquid fertilizer pipe extending backward is connected to the nozzle. The left and right sides of the rear of the frame The sides of the liquid fertilizer tank are rotatably connected to a nozzle support plate, the nozzle is fixedly connected to the nozzle support plate, the left and right sides of the frame behind the liquid fertilizer tank are respectively connected to two linear actuators, the linear actuator is connected to a telescopic rod extending backward and upward, the telescopic rod can move back and forth linearly, and the end of the telescopic rod extending upward is hinged to the nozzle support plate; the outer side of each nozzle support plate is connected to a nozzle height detection component, n nozzles are provided and are fixed on the rear side of the nozzle support plate, the nozzle height detection component includes two distance sensors and a fixed plate fixedly connected to the outer side of the nozzle support plate, The outward side of the fixed plate is fixedly connected with an infrared emitting fixed seat 2 and a lower supporting seat 2 which are spaced apart in the height direction. The infrared emitting fixed seat 2 is above the lower supporting seat 2. The infrared emitting fixed seat 2 and the lower supporting seat 2 are slidably connected with a movable rod 2. A drag plate 2 is provided on the lower side of the movable rod 2. A buffer spring 2 is mounted on the movable rod 2. The buffer spring 2 is between the infrared emitting fixed seat 2 and the lower supporting seat 2. The distance sensor 2 is an infrared ranging sensor. The infrared light emitted by the infrared ranging sensor is irradiated on the upper side of the drag plate 2.

2. The high-efficiency sowing and fertilization system according to claim 1, characterized in that: The liquid fertilizer tank is fixedly connected to a pressure pump on a frame facing outward on one side in the left-right direction, a connecting pipe is connected to the lower part of the liquid fertilizer tank, an electromagnetic flowmeter and a concentration sensor are connected to the connecting pipe in sequence, an end of the connecting pipe away from the liquid fertilizer tank is connected to the liquid inlet of the pressure pump, the liquid outlet pipe is connected to the liquid outlet of the pressure pump, and an end of the liquid outlet pipe away from the pressure pump is connected to the nozzle.

3. The high-efficiency sowing and fertilization system according to claim 2, characterized in that: A bracket and an adjusting fertilizer box are fixedly connected to the walking device in front of the frame, a plurality of fertilizer dischargers are fixedly connected to the upper side of the bracket, a material box for placing fertilizers is fixedly connected to the upper side of each fertilizer discharger, the adjusting fertilizer box is below the material box, a regulating pipe is connected to the lower part of the adjusting fertilizer box, a butterfly valve is installed on the regulating pipe, a liquid outlet of the regulating pipe is connected to a stirring liquid pump, a liquid outlet of the stirring liquid pump is connected to a stirring liquid pipe, an end of the stirring liquid pipe away from the stirring liquid pump is connected to the adjusting fertilizer box, a regulating liquid pipe is connected to the adjusting fertilizer box below the stirring liquid pipe, a regulating liquid pump is connected to the regulating liquid pipe, a fertilizer outlet of the regulating liquid pump is connected to a fertilizer outlet pipe extending to the liquid fertilizer tank, and an end of the fertilizer outlet pipe away from the bracket is connected to the upper part of the liquid fertilizer tank.

4. The high-efficiency sowing and fertilization system according to claim 1, characterized in that: The frame is fixedly connected with a plurality of linear drivers, the linear driver is connected with a lifting rod which extends upward and can make reciprocating linear movements, the lifting rod is connected with a lifting connecting rod, the lower side of the connecting rod is fixedly connected with a pressure sensor for a suppressing wheel, the lower side of the pressure sensor for the suppressing wheel is fixedly connected with a connecting frame, and the lower part of the connecting frame is rotatably connected with the suppressing wheel.

5. The high-efficiency sowing and fertilization system according to claim 1, characterized in that: The left and right sides of the front part of the frame are fixedly connected with frame side panels, the rotary tiller shaft is rotatably connected to the two frame side panels, and the outer side of the frame side panels is connected with a tillage depth detection component, and the tillage depth detection component includes an infrared emitting fixed seat fixed to the outer side of the frame side panel, a lower supporting seat is fixedly provided on the outer side of the frame side panel below the infrared emitting fixed seat, a movable rod is slidably connected to the infrared emitting fixed seat and the lower supporting seat, a limit step is provided on the upper side of the movable rod, and the limit step can abut against the upper side of the infrared emitting fixed seat, a distance sensor is fixedly connected to the infrared emitting fixed seat facing outward away from the side panel of the frame, a drag plate is provided on the lower side of the movable rod, the distance sensor is arranged relative to the drag plate, and a buffer spring is mounted on the movable rod, and the buffer spring is between the infrared emitting fixed seat and the lower supporting seat.

6. A high-efficiency sowing and fertilization system according to any one of claims 1 to 5, characterized in that: The seed metering device includes a seed metering shell with an opening, a plurality of seed dropping openings are arranged on the seed box, each opening corresponds to the seed dropping opening one by one, and the opening is connected to the inner cavity of the seed box through the seed dropping opening. A seed metering shaft is rotatably connected to the seed metering shell, and a socket wheel is connected to the seed metering shaft in the seed metering shell, and a plurality of sliding grooves are arranged on the circumference of the socket wheel. A push plate is installed in the sliding groove, and one end of the push plate extends into the socket of the socket wheel, and the other end of the push plate can slide along the outer side of the circumference of the socket wheel at the sliding groove, and the other end of the push plate can contact the socket wheel. A material trough connected to the socket is opened at one end of the push plate, and the socket and the material trough form a space for accommodating seeds. The outer side of the push plate is flush with the outer side of the socket wheel. After the position of the push plate is adjusted The push plate is fixedly connected to the socket wheel, and a feed port is provided on the upper side of the seed dispensing shell; an adjusting disk is connected to the outward side of the socket wheel in the axial direction, and a plurality of connecting and adjusting parts are arranged on the adjusting disk, and a connecting groove corresponding to the position of the connecting and adjusting part is arranged on the outward side of the socket wheel, the connecting and adjusting part can slide along the connecting groove, and a plurality of adjusting grooves corresponding to the position of the sliding groove are provided on the adjusting disk, and the push plate simultaneously contacts the adjusting disk, and after the position of the push plate is adjusted, the end of the push plate extending out of the socket wheel is fixedly connected to the adjusting disk; a soft brush is fixedly connected to the downward side of the seed dispensing shell, and the soft brush faces the socket wheel and is tangent to the wheel surface of the socket wheel; an isolation ring is connected to the outer side of the socket wheel, and an isolation groove corresponding to the spatial position is provided on the isolation ring.

7. The high-efficiency sowing and fertilization system according to claim 6, characterized in that: A cover plate is connected to the outer side of the seeding shell corresponding to the opening, and a flange is fixedly connected to the outer side of the isolation ring in the axial direction. The seeding shaft is rotatably connected to the flange, one end of the seeding shaft extends out of the seeding shell, and the other end of the seeding shaft extends out of the flange.

8. The high-efficiency sowing and fertilization system according to claim 6, characterized in that: A seed protection belt is also connected to the seed discharging shell, the belt surface of the seed protection belt is closely attached to the circumferential outer side of the eye wheel, and the lower part of the seed protection belt extends toward the seed discharging port.

9. The high-efficiency sowing and fertilization system according to claim 6, characterized in that: The sealing belt extending out of the sealing plate is tilted downward, and the upward side of the sealing belt is flush with the upward side of the sealing plate. On the downward tilted sealing belt, the inclination of the lower part of the sealing belt is greater than the inclination of the upper part of the sealing belt. The inclination is relative to the vertical direction. The upper part of the sealing belt is attached to the outer side of the socket wheel. At least one positioning groove 1 is opened on the downward side of the upper part of the sealing belt. An inclined panel tilted downward and extending in the direction of the socket wheel discharge port is provided on the inner wall of the seed discharging shell below the closing plate. A positioning groove 2 corresponding to the positioning groove 1 is opened on the inclined panel. The sealing belt is connected with a compression spring through the positioning groove 1. The end of the compression spring tilted downward is extended into the corresponding positioning groove 2 and connected to the inclined panel. The compression spring is in a compressed state. A accommodating cavity for accommodating seeds is formed between the socket wheel on one side in the left and right directions, the sealing plate, the sealing belt, the inner wall of the seed discharging shell and the feed port. An installation cavity for installing a seed protection belt is formed between the socket wheel on the other side in the left and right directions and the inner wall of the seed discharging shell.

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