Wheat intelligent no-tillage seeding monomer

Abstract

The invention provides an intelligent wheat no-tillage seeding monomer. The intelligent wheat no-tillage seeding monomer comprises a profiling mechanism, a measurement and control device, a pressing mechanism, an inclined rotary blade group, a ditching mechanism and the like. The profiling mechanism is located on the front portion of the rack. The measurement and control device, the ditching mechanism, the pressing mechanism and the inclined rotary blade group are positioned at the bottom end of the rack. The wheat single-body rotary tillage anti-blocking and no-tillage seeding machine can achieve wheat single-body rotary tillage anti-blocking and no-tillage seeding, the ditching and seeding depth is guaranteed, the problem that profiling cannot be achieved between wheat no-tillage seeding rows is solved, and technical support is provided for follow-up research.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a single unit for intelligent no-tillage wheat seeding. Background Art

[0002] Conservation tillage has the effects of improving the physical and chemical structure of the soil, preventing wind and water erosion, saving costs and increasing efficiency; no-till or minimum-till seeding is one of the important technical links in the wheat conservation tillage system. Direct no-till or minimum-till wheat seeding in fields covered with straw of previous crops has two main difficulties. One is that a large amount of straw is covered on the ground surface, which easily causes entanglement and blockage of the machinery. The other is that no tillage and land preparation operations are carried out before seeding, the ground surface is uneven, and it is difficult to keep the seeding depth consistent. Therefore, profiling is required. Existing no-till or minimum-till wheat seeding generally adopts drive anti-blocking, installing multiple rotary tillage knives on one shaft to cut and throw the straw to achieve anti-blocking, with poor profiling effect and non-adjustable rotation speed, and unable to adapt to different forward speeds.

[0003] Therefore, how to provide a single unit for intelligent no-tillage wheat seeding that integrates an anti-blocking device, a seed and fertilizer box device, a furrow opener, and a pressing device, which can not only accurately match the forward speed of the seeder with the rotation speed of the rotary tillage knife, but also adjust the height of the single unit from the ground and the pressing force according to different ground conditions is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide a single unit for intelligent no-tillage wheat seeding, which can realize no-till or minimum-till seeding of single-unit wheat, solve the problems of inability to profile between rows and low profiling accuracy within rows, and intelligently adjust the rotation speed of the rotary tillage knife according to the forward speed, and adjust the height from the ground and the pressing force in real time according to the ground conditions.

[0005] The present invention adopts the following technical solutions to solve the technical problems:

[0006] A single unit for intelligent no-tillage wheat seeding includes: a profiling mechanism, a measurement and control device, a seed and fertilizer box device, a frame, a pressing mechanism, an inclined rotary tillage knife group, and a furrow opening mechanism;

[0007] The profiling mechanism is installed at the front of the frame; the seed and fertilizer box device is installed on the top of the frame, the furrow opening mechanism is installed in the middle of the bottom of the frame and is communicated with the seed and fertilizer box device; the inclined rotary tillage knife group is installed at the front of the bottom of the frame, and the pressing mechanism is installed at the rear of the bottom of the frame; the measurement and control device is installed inside the frame and is electrically connected to the profiling mechanism, the seed and fertilizer box device, the pressing mechanism, and the inclined rotary tillage knife group respectively.

[0008] Further, the profiling mechanism includes a four-bar mechanism and an electric push rod for driving the four-bar mechanism; holes are respectively formed at the central positions of the first bent rod, the second bent rod, the third bent rod and the fourth bent rod of the four-bar mechanism, namely hole one, hole two, hole three and hole four; holes five and six are formed at both sides of the third bent rod and the fourth bent rod; holes seven and eight are respectively formed at both ends of the electric push rod; the riveting bolts of the profiling mechanism pass through hole one, hole seven and hole two and are fastened by nut one for connecting the electric push rod and the four-bar mechanism together; the locking bolts of the profiling mechanism pass through hole five, hole eight and hole six and are fastened by nut two to fix the electric push rod and the four-bar mechanism together; the mounting bolts and nuts three of the profiling mechanism are used to fix the first bent rod and the second bent rod.

[0009] Further, the inclined rotary tillage knife group includes a rotary tillage knife support arm, a rotary tillage knife blade, a rotary tillage knife seat, a rotary tillage knife disc, a rotary tillage knife motor, a rotary tillage knife top plate, a rotary tillage knife power cord, a rotary tillage knife motor fixing bolt and a rotary tillage knife blade fixing bolt; the rotary tillage knife disc has 6 screw holes for fixing the knife disc on the output shaft of the rotary tillage knife motor.

[0010] The rotary tillage knife top plate has rotary tillage knife top plate hole one, rotary tillage knife top plate hole two, rotary tillage knife top plate hole three and rotary tillage knife top plate hole four for fixing the rotary tillage knife support arm; the angle α formed by the straight line formed by rotary tillage knife top plate hole one and rotary tillage knife top plate hole two and the vertical direction is 10°; the angle β formed by the straight line formed by rotary tillage knife top plate hole three and rotary tillage knife top plate hole four and the vertical direction is 10°; rotary tillage knife top plate hole one, rotary tillage knife top plate hole two, rotary tillage knife top plate hole three and rotary tillage knife top plate hole four are connected with the corresponding holes on the rotary tillage knife support arm by bolts.

[0011] A plurality of rotary tillage knife seats are evenly fixed on the cylindrical surface of the rotary tillage knife disc, and there is a certain distance between the knife disc and the rotary tillage knife motor; a flat rotary tillage knife is fixed in each rotary tillage knife seat.

[0012] Further, the inclination angle of the plane where the rotary tillage knife disc is located with respect to the vertical plane where the central axis of the seeder is located is 80 degrees, and the center distance between adjacent two knife discs is 190 mm.

[0013] Further, the diameter of the rotary tillage knife disc is 45 mm, the rotary radius of the rotary tillage knife seat is 100 mm, and the rotary radius of the rotary tillage knife blade is 225 mm.

[0014] Further, the seed and fertilizer box device includes a seed box, a seed box support bolt, a seed box support plate, a seed metering shaft motor, a fertilizer metering shaft motor and a fertilizer box; the bottom end of the seed box support plate is fixed on the frame, and both the seed box and the fertilizer box are fixedly installed on the seed box support plate through the seed box support bolt; the seed metering shaft motor is located at the seed box outlet for adjusting the rotation speed of the seed metering shaft; the fertilizer metering shaft motor is located at the fertilizer box outlet for adjusting the rotation speed of the fertilizer metering shaft.

[0015] Further, the ditching mechanism includes a ditching tool connector, a ditching tool, and a fertilizer discharging pipe; the ditching tool connector is fixed to the machine frame by bolts; the ditching tool is installed at the front of the ditching tool connector and communicates with the outlet of the seed box; the fertilizer discharging pipe is installed at the rear of the ditching tool connector and communicates with the outlet of the fertilizer box.

[0016] Further, the pressing mechanism includes a pressing wheel device support, a pressing wheel support arm, a pressing wheel connection bolt, a pressing wheel adjusting push rod, and a pressing wheel; one end of the pressing wheel device support is fixedly installed at the rear of the machine frame, and the other end is rotatably connected to the pressing wheel; holes nine and ten are formed in the pressing wheel adjusting push rod; holes eleven and twelve are formed in the pressing wheel support arm; hole nine is used to connect with the machine frame; the pressing wheel connection bolt passes through holes eleven, ten, and twelve respectively to connect the pressing wheel adjusting push rod and the pressing wheel support arm together.

[0017] Further, the measurement and control device includes a control system power supply, an STM32 control board, a BMX055 attitude sensor for measuring the attitude and displacement of the machine frame, a measurement and control device substrate, an HC-SR04 ultrasonic sensor, and a battery; the HC-SR04 ultrasonic sensor is arranged at the bottom of the inclined rotary tillage knife group for measuring the ground clearance information of the seeding machine unit; the measurement and control device substrate and the battery are both installed on the machine frame, and the control system power supply, the STM32 control board, and the BMX055 attitude sensor are all integrated on the measurement and control device substrate.

[0018] Advantages of the present invention:

[0019] (1) Each group of inclined rotary tillage knife groups is driven by a rotary tillage knife motor. This seeding unit changes the rotary tillage anti-blocking device of the existing wheat no-till seeding machine into an electric rotary tillage anti-blocking unit, which is integrated with the seed and fertilizer box device, the ditching tool, the pressing wheel, etc. on the seeding unit, realizing wheat no-till or minimum-till single-seed seeding and facilitating row-by-row profiling.

[0020] (2) The plane where the rotary tillage knife is located forms a certain angle with the forward direction of the seeding machine, enabling the rotary tillage knife to have a lateral speed, facilitating the throwing of straw from the seedbed to the row space, and having a better straw cleaning effect on the seedbed; by setting the angles of angle α and angle β, the size of this angle can be adjusted.

[0021] (3) The rotational speed of the rotary tillage knife motor can be matched with the forward traveling speed of the machine to ensure the anti-blocking performance and the quality of seedbed preparation, realizing high-speed wheat no-till seeding.

[0022] (4) Relying on the BMX055 attitude sensor and HC-SR04 ultrasonic sensor on the seeding machine body, real-time inclination angle and ground clearance data of the machine body are obtained, the seeding depth is calculated, and the ground clearance of the seeding machine is adjusted through an electric push rod to improve the consistency of seeding depth.

[0023] (5) The compaction force of the compaction wheel can be adjusted by the push rod, improving the soil covering and compaction effect of the seeder. Description of the Drawings

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the wheat single-row no-till seeder of the present invention.

[0025] Figure 2 It is a front view structural schematic diagram of the wheat single-row no-till seeder of the present invention.

[0026] Figure 3 It is an assembly explosion diagram of the profiling mechanism of the present invention.

[0027] Figure 4 It is an installation explosion diagram of the four-bar mechanism, electric push rod and fixed structure in the profiling mechanism of the present invention.

[0028] Figure 5 It is a structural schematic diagram of the obliquely arranged rotary tillage knife group of the present invention.

[0029] Figure 6 It is a structural diagram of the rotary tillage knife top plate in the obliquely arranged rotary tillage knife group of the present invention.

[0030] Figure 7 It is an assembly explosion diagram of the obliquely arranged rotary tillage knife group of the present invention.

[0031] Figure 8 It is a structural schematic diagram of the ditching mechanism of the present invention.

[0032] Figure 9 It is a structural schematic diagram of the seed and fertilizer box device of the present invention.

[0033] Figure 10 It is a structural schematic diagram of the measurement and control device of the present invention.

[0034] Figure 11 It is an assembly explosion diagram of the compaction mechanism of the present invention.

[0035] Among them, in the figure:

[0036] 1 - Profiling mechanism; 101 - Four-bar mechanism; 1011 - First bent bar; 1012 - Second bent bar; 1013 - Third bent bar; 1014 - Fourth bent bar; 10111 - First hole; 10121 - Second hole; 10131 - Third hole; 10141 - Fourth hole; 10132 - Fifth hole; 10142 - Sixth hole; 1021 - Seventh hole; 1022 - Eighth hole; 102 - Electric push rod; 103 - First nut; 104 - Riveting bolt for profiling device; 105 - Locking bolt for profiling mechanism; 106 - Mounting bolt for profiling mechanism; 107 - Third nut; 108 - Second nut; 2 - Measurement and control device; 201 - Power supply for control system; 202 - STM32 control board; 203 - BMX055 attitude sensor; 204 - Substrate for measurement and control device; 3 - Battery; 10 - HC-SR04 ultrasonic sensor; 4 - Seed and fertilizer box device; 401 - Seed box; 402 - Support bolt for seed box; 403 - Support plate for seed box; 404 - Seed metering shaft motor; 405 - Fertilizer metering shaft motor; 406 - Fertilizer box; 5 - Frame; 6 - Compaction wheel adjustment push rod; 7 - Compaction mechanism; 701 - Support member for compaction wheel device; 702 - Compaction wheel support arm; 703 - Connecting bolt for compaction wheel; 704 - Compaction wheel; 7021 - Eleventh hole; 7022 - Twelfth hole; 8 - Obliquely arranged rotary tiller blade group; 801 - Rotary tiller support arm; 802 - Rotary tiller blade; 803 - Rotary tiller tool holder; 804 - Rotary tiller cutter head; 805 - Rotary tiller motor; 806 - Top plate for rotary tiller; 807 - Power cord for rotary tiller; 808 - Fixed bolt for rotary tiller motor; 809 - Fixed bolt for rotary tiller blade; 9 - Ditching mechanism; 901 - Ditcher; 902 - Fertilizer discharge pipe; 903 - Ditcher connecting part; 10 - HC-SR04 ultrasonic sensor. Detailed implementation manners

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] Refer to the attached Figure 1 And Figure 2 , the present invention provides a wheat intelligent no-tillage seeding unit, including: profiling mechanism 1, measurement and control device 2, seed and fertilizer box device 4, frame 5, compaction mechanism 7, obliquely arranged rotary tiller blade group 8, and ditching mechanism 9;

[0039] The profiling mechanism 1 is installed at the front of the frame 5; the seed and fertilizer box device 4 is installed on the top of the frame 5, and the ditching mechanism 9 is installed in the middle of the bottom end of the frame 5 and is communicated with the seed and fertilizer box device 4; the inclined rotary tiller blade group 8 is installed at the front of the bottom end of the frame 5, and the pressing mechanism 7 is installed at the rear of the bottom end of the frame 5; the measurement and control device 2 is installed inside the frame 5 and is electrically connected to the profiling mechanism 1, the seed and fertilizer box device 4, the pressing mechanism 7, and the inclined rotary tiller blade group 8 respectively.

[0040] Reference Figure 3 And Figure 4 , the profiling mechanism 1 includes a four-bar mechanism 101 and an electric push rod 102 for driving the four-bar mechanism; holes with a diameter of 16 - 20 mm are respectively opened at the central positions of the first bent rod 1011, the second bent rod 1012, the third bent rod 1013, and the fourth bent rod 1014 of the four-bar mechanism 101, which are respectively the first hole 10111, the second hole 10121, the third hole 10131, and the fourth hole 10141; holes five and hole six 10142 with a diameter of 16 - 20 mm are opened at both sides of the third bent rod 1013 and the fourth bent rod 1014; holes seven 1021 and hole eight with a diameter of 16 - 20 mm are respectively opened at both ends of the electric push rod 102; the profiling mechanism riveting bolt 104 passes through the first hole 10111, the hole seven 1021, and the second hole 10121 and is fastened by a first nut 103 for connecting the electric push rod and the four-bar mechanism 101 together; the profiling mechanism locking bolt 105 passes through the fifth hole 10132, the hole eight, and the hole six 10142 and is fastened by a second nut 108 to fix the electric push rod 102 and the four-bar mechanism 101 together; the profiling mechanism mounting bolt 106 and the third nut 107 are used to fix the first bent rod 1011 and the second bent rod 1012. The profiling mechanism is adjusted by the electric push rod 102 to change the ground clearance of the frame. The maximum stroke of the electric push rod is 100 mm.

[0041] Reference Figures 5 to 7 , the inclined rotary tiller blade group 8 includes a rotary tiller support arm 801, rotary tiller blades 802, rotary tiller tool holders 803, a rotary tiller cutter disc 804, a rotary tiller motor 805, a rotary tiller top plate 806, a rotary tiller power cord 807, rotary tiller motor fixing bolts 808, and rotary tiller blade fixing bolts 809; the rotary tiller cutter disc 804 has 6 screw holes for fixing the cutter disc 804 on the output shaft 8051 of the rotary tiller motor.

[0042] The rotary tiller blade top plate 806 has a first rotary tiller blade top plate hole 8061, a second rotary tiller blade top plate hole 8062, a third rotary tiller blade top plate hole 8063, and a fourth rotary tiller blade top plate hole 8064 for fixing the rotary tiller support arm 801; the angle α between the straight line formed by the first rotary tiller blade top plate hole 8061 and the second rotary tiller blade top plate hole 8062 and the vertical direction is 10°; the angle β between the straight line formed by the third rotary tiller blade top plate hole 8063 and the fourth rotary tiller blade top plate hole 8064 and the vertical direction is 10°; the first rotary tiller blade top plate hole 8061, the second rotary tiller blade top plate hole 8062, the third rotary tiller blade top plate hole 8063, and the fourth rotary tiller blade top plate hole 8064 are bolted to the corresponding hole positions on the rotary tiller support arm 801; by setting the angles of the angle α and the angle β, the purpose of tilting the rotary tiller shaft is achieved;

[0043] A plurality of rotary tiller blade seats 803 are evenly fixed on the cylindrical surface of the rotary tiller blade disc 804, and there is a certain distance between the blade disc 804 and the rotary tiller motor 805; a flat rotary tiller blade 802 is fixedly connected in each rotary tiller blade seat 803. The rotary tiller blade 802 in the obliquely arranged rotary tiller blade group 8 is driven by the rotary tiller motor 805, and the model of the rotary tiller motor is MG8008-i9, and the thickness of the rotary tiller blade 802 is only 48 mm.

[0044] Further optimizing the technical solution, the inclination angle of the plane where the rotary tiller blade disc 804 is located relative to the vertical plane where the central axis of the seeder is located is 80 degrees, and the center distance between adjacent two blade discs is 190 mm.

[0045] Further optimizing the technical solution, the diameter of the rotary tiller blade disc 804 is 45 mm, the rotary radius of the rotary tiller blade seat is 100 mm, and the rotary radius of the rotary tiller blade 802 is 225 mm.

[0046] The electric push rod 102 and the press wheel adjusting push rod 6 are both electric push rods with a stroke of 100 mm and a fully extended length of 305 mm; their working voltage is DC24V.

[0047] Reference Figure 9 , the seed and fertilizer box device 4 includes a seed box 401, a seed box support bolt 402, a seed box support plate 403, a seed metering shaft motor 404, a fertilizer metering shaft motor 405, and a fertilizer box 406; the bottom end of the seed box support plate 403 is fixed on the frame 5, and the seed box 401 and the fertilizer box 406 are both fixedly installed on the seed box support plate 403 through the seed box support bolt 402; the seed metering shaft motor 404 is located at the outlet of the seed box 401 for adjusting the rotation speed of the seed metering shaft; the fertilizer metering shaft motor 405 is located at the outlet of the fertilizer box 406 for adjusting the rotation speed of the fertilizer metering shaft.

[0048] Reference Figure 8The furrowing mechanism 9 is located directly behind the planetary gear system's tilted rotary blade group 8, and the vertical plane on which the furrowing mechanism 9 is located coincides with the central axis of the present wheat single-unit no-till planter. The furrowing mechanism 9 includes a furrow opener connector 903, a furrow opener 901, and a fertilizer discharge pipe 902; the furrow opener connector 903 is fixed to the frame 5 by bolts; the furrow opener 901 is mounted in front of the furrow opener connector 903 and communicates with the outlet of the seed box 401; the fertilizer discharge pipe 902 is mounted in the rear of the furrow opener connector 903 and communicates with the outlet of the fertilizer box 406.

[0049] refer to Figure 11 The suppressing mechanism 7 includes a suppressing wheel device support 701, a suppressing wheel support arm 702, a suppressing wheel connecting bolt 703, a suppressing wheel adjustment push rod 6, and a suppressing wheel 704. One end of the suppressing wheel device support 701 is fixedly mounted on the rear of the frame 5, and the other end is rotatably connected to the suppressing wheel 704. The suppressing wheel adjustment push rod 6 has a hole 9 6011 and a hole 10 6012. The suppressing wheel support arm 702 has a hole 11 7021 and a hole 12 7022. The hole 9 6011 is used for connecting to the frame 5. The suppressing wheel connecting bolt 703 passes through the hole 11 7021, the hole 10 6012, and the hole 12 7022, respectively, connecting the suppressing wheel adjustment push rod 6 and the suppressing wheel support arm 702. The distance between the side of the suppressing wheel adjustment push rod 6 and the inner side of the suppressing wheel support arm 702 is 35-45 mm.

[0050] refer to Figure 10 The measurement and control device 2 includes a control system power supply 201, an STM32 control board 202, a BMX055 attitude sensor 203 for measuring the frame attitude and displacement, a measurement and control device substrate 204, an HC-SR04 ultrasonic sensor 10, and a battery 3 for driving the motor and the measurement and control device; the HC-SR04 ultrasonic sensor 10 is arranged at the bottom of the inclined rotary tillage blade group 8, and is used to measure the height information of the planter unit from the ground; the measurement and control device substrate 204 and the battery 3 are both installed on the frame 5, and the control system power supply 201, the STM32 control board 202, and the BMX055 attitude sensor 203 are all integrated on the measurement and control device substrate 204.

[0051] The HC-SR04 ultrasonic sensor 10 is located below the inclined rotary blade group 8 and is connected to the rotary blade support arm 801 by bolts. The measured h1 is the height of the bottom of the rotary blade motor 805 from the ground.

[0052] BMX055 attitude sensor 203 is an all-in-one 9-axis sensor module; the measurement and control device can obtain the precise two-axis displacement x and y and forward speed v of this single system of BMX055 attitude sensor. m .

[0053] After obtaining the ground clearance height h1 of this seeding monomer, the STM32 control board subtracts h1 from the preset ground clearance height h to obtain the ground clearance change value h2 = h - h1, and drives the four-bar mechanism to adjust the electric push rod 102 to shorten, so that the frame is lowered by the height of h2.

[0054] Set the ratio λ of the rotary tiller blade speed to the forward speed of the seeder to 5, which is determined by the formula λ = Rω / v m ; After obtaining the forward speed v of this seeding monomer m After that, substituting it into the formula to obtain the rotary tiller blade speed ω, the controller adjusts the rotary tiller blade speed to ω to ensure the matching of the seeding speed and the forward speed, and obtain the best rotary tilling and anti-clogging quality.

[0055] The operation process of the present invention is as follows:

[0056] During operation, the tractor drives this seeding monomer to move forward. At the same time, the battery provides power to the rotary tiller motor 803 to drive the rotary tiller to rotate. While loosening the soil, since the rotary tiller has a certain angle with the forward direction, the straw can be thrown to the rear side, achieving the purpose of cleaning and preparing the seedbed; during the forward process, the HC-SR04 ultrasonic sensor 10 measures the ground clearance information of this seeding machine monomer, and at the same time, the BMX055 attitude sensor 203 collects data such as forward displacement and ground displacement. The data of the two sensors will be displayed on the screen panel of the measurement and control device 2. At the same time, the controller couples the data of the HC-SR04 ultrasonic sensor 10 after denoising processing with the data of the BMX055 attitude sensor 203. Taking the displacement h in the vertical direction collected by the BMX055 attitude sensor 203 b as the main, with a weight setting of 0.9, and taking the displacement h in the vertical direction collected by the HC-SR04 ultrasonic sensor 10 h as the auxiliary, with a weight setting of 0.1. Through the formula h1 = h b ×0.9 + h h ×0.1, the forward speed and ground clearance information h1 of the seeding machine after data processing are obtained; after obtaining the ground clearance height h1 of this seeding monomer, the STM32 control board 202 subtracts h1 from the preset ground clearance height h to obtain the ground clearance change value h2 = h - h1, drives the four-bar mechanism to adjust the push rod 102 to shorten or extend, so that the frame is lowered by the height of h2, achieving the purpose of profiling and ensuring consistent seeding depth; at the same time, drives the pressing wheel to adjust the electric push rod 6 to shorten or extend to adjust the pressing force of the pressing wheel; set the ratio λ of the rotary tiller blade speed to the forward speed of the seeder to 5, which is determined by the formula λ = Rω / v m ; After the BMX055 attitude sensor 203 obtains the forward speed v of this seeding monomer mAfter that, substitute it into the formula to obtain the rotary tillage blade speed ω. Then, the controller adjusts the rotary tillage blade speed to ω to ensure that the seeding speed matches the forward speed. At the same time, the STM32 control board 202 adjusts the rotational speeds of the fertilizer discharge shaft motor 405 and the seed metering shaft motor 404 based on the obtained forward speed information to achieve the best seeding effect.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent no-tillage seeding unit for wheat, characterized in that, Comprising: A profiling mechanism (1), a measurement and control device (2), a seed and fertilizer box device (4), a frame (5), a pressing mechanism (7), an inclined rotary tillage blade group (8), and a ditching mechanism (9); The profiling mechanism (1) is installed at the front of the frame (5); the seed and fertilizer box device (4) is installed on the top of the frame (5), the ditching mechanism (9) is installed in the middle of the bottom end of the frame (5) and is communicated with the seed and fertilizer box device (4); the inclined rotary tillage blade group (8) is installed at the front of the bottom end of the frame (5), and the pressing mechanism (7) is installed at the rear of the bottom end of the frame (5); the measurement and control device (2) is installed inside the frame (5) and is electrically connected to the profiling mechanism (1), the seed and fertilizer box device (4), the pressing mechanism (7), and the inclined rotary tillage blade group (8) respectively.

2. The single unit for intelligent no-tillage seeding of wheat according to claim 1, wherein The profiling mechanism (1) includes a four-bar mechanism (101) and an electric push rod (102) for driving the four-bar mechanism; holes are respectively opened at the central positions of the first bent rod (1011), the second bent rod (1012), the third bent rod (1013), and the fourth bent rod (1014) of the four-bar mechanism (101), which are the first hole (10111), the second hole (10121), the third hole (10131), and the fourth hole (10141); holes five and six (10142) are opened at both sides of the third bent rod (1013) and the fourth bent rod (1014); holes seven (1021) and eight are respectively opened at both ends of the electric push rod (102); a profiling mechanism riveting bolt (104) passes through the first hole (10111), the seventh hole (1021), and the second hole (10121) and is fastened by a first nut (103) for connecting the electric push rod and the four-bar mechanism (101) together; a profiling mechanism locking bolt (105) passes through the fifth hole (10132), the eighth hole, and the sixth hole (10142) and is fastened by a second nut (108) to fix the electric push rod (102) and the four-bar mechanism (101) together; a profiling mechanism mounting bolt (106) and a third nut (107) are used to fix the first bent rod (1011) and the second bent rod (1012).

3. The single unit for intelligent no-tillage seeding of wheat according to claim 2, characterized in that, The inclined rotary tillage blade group (8) includes a rotary tillage blade support arm (801), a rotary tillage blade (802), a rotary tillage blade seat (803), a rotary tillage blade disc (804), a rotary tillage blade motor (805), a rotary tillage blade top plate (806), a rotary tillage blade power cord (807), a rotary tillage blade motor fixing bolt (808), and a rotary tillage blade fixing bolt (809); the rotary tillage blade disc (804) has 6 screw hole positions for fixing the disc (804) on the output shaft (8051) of the rotary tillage blade motor; The rotary tillage knife top plate (806) has a first rotary tillage knife top plate hole (8061), a second rotary tillage knife top plate hole (8062), a third rotary tillage knife top plate hole (8063) and a fourth rotary tillage knife top plate hole (8064) for fixing the rotary tillage knife support arm (801); the angle α between the straight line formed by the first rotary tillage knife top plate hole (8061) and the second rotary tillage knife top plate hole (8062) and the vertical direction is 10°; the angle β between the straight line formed by the third rotary tillage knife top plate hole (8063) and the fourth rotary tillage knife top plate hole (8064) and the vertical direction is 10°; the first rotary tillage knife top plate hole (8061), the second rotary tillage knife top plate hole (8062), the third rotary tillage knife top plate hole (8063) and the fourth rotary tillage knife top plate hole (8064) are bolted to the corresponding hole positions on the rotary tillage knife support arm (801); A plurality of rotary tillage knife seats (803) are evenly fixed on the cylindrical surface of the rotary tillage knife disc (804), and there is a certain distance between the knife disc (804) and the rotary tillage knife motor (805); a flat rotary tillage knife blade (802) is fixed in each rotary tillage knife seat (803).

4. The single wheat intelligent no-tillage seeding unit according to claim 3, characterized in that, The plane where the rotary tillage knife disc (804) is located is inclined at an angle of 80 degrees with respect to the vertical plane where the central axis of the seeder is located, and the center distance between adjacent two knife discs is 190 mm.

5. The wheat intelligent no-tillage seeding monomer according to claim 3, characterized in that, The diameter of the rotary tillage knife disc (804) is 45 mm, the rotary radius of the rotary tillage knife seat is 100 mm, and the rotary radius of the rotary tillage knife blade (802) is 225 mm.

6. The wheat intelligent no-tillage seeding monomer according to claim 3, characterized in that The seed and fertilizer box device (4) includes a seed box (401), seed box support bolts (402), a seed box support plate (403), a seed metering shaft motor (404), a fertilizer metering shaft motor (405) and a fertilizer box (406); the bottom end of the seed box support plate (403) is fixed on the frame (5), and the seed box (401) and the fertilizer box (406) are both fixedly installed on the seed box support plate (403) through the seed box support bolts (402); the seed metering shaft motor (404) is located at the outlet of the seed box (401) for adjusting the rotational speed of the seed metering shaft; the fertilizer metering shaft motor (405) is located at the outlet of the fertilizer box (406) for adjusting the rotational speed of the fertilizer metering shaft.

7. The single wheat intelligent no-tillage seeding unit according to claim 6, characterized in that, The ditching mechanism (9) includes a ditching tool connector (903), a ditching tool (901) and a fertilizer discharging pipe (902); the ditching tool connector (903) is fixed on the frame (5) by bolts; the ditching tool (901) is installed at the front part of the ditching tool connector (903) and is communicated with the outlet of the seed box (401); the fertilizer discharging pipe (902) is installed at the rear part of the ditching tool connector (903) and is communicated with the outlet of the fertilizer box (406).

8. A single wheat intelligent no-tillage seeding unit according to claim 5, characterized in that, The pressing mechanism (7) includes a pressing wheel device support (701), a pressing wheel support arm (702), a pressing wheel connection bolt (703), a pressing wheel adjustment push rod (6), and a pressing wheel (704); one end of the pressing wheel device support (701) is fixedly installed at the rear of the frame (5), and the other end is rotatably connected to the pressing wheel (704); the pressing wheel adjustment push rod (6) is provided with a hole nine (6011) and a hole ten (6012); the pressing wheel support arm (702) is provided with a hole eleven (7021) and a hole twelve (7022); the hole nine (6011) is used to connect to the frame (5); the pressing wheel connection bolt (703) passes through the hole eleven (7021), the hole ten (6012), and the hole twelve (7022) respectively to connect the pressing wheel adjustment push rod (6) and the pressing wheel support arm (702) together.

9. A single wheat intelligent no-tillage seeding unit according to claim 1, characterized in that, The measurement and control device (2) includes a control system power supply (201), an STM32 control board (202), a BMX055 attitude sensor (203) for measuring the attitude and displacement of the frame, a measurement and control device substrate (204), an HC-SR04 ultrasonic sensor (10), and a battery (3); the HC-SR04 ultrasonic sensor (10) is arranged at the bottom of the inclined rotary tillage knife group (8) for measuring the ground clearance information of the single seeder unit; the measurement and control device substrate (204) and the battery (3) are both installed on the frame (5), and the control system power supply (201), the STM32 control board (202), and the BMX055 attitude sensor (203) are all integrated on the measurement and control device substrate (204).

Images