Narrow-row-spacing elevated corn seeding device based on interplanting condition

Abstract

The invention discloses a narrow-row-spacing elevated corn seeding device based on interplanting conditions, which belongs to the technical field of agricultural equipment and comprises a rack, a drip irrigation tape laying mechanism, an anti-blocking seed feeding mechanism, a hole sowing type seeding mechanism, a narrow-row-spacing rotary tillage mechanism, a rack height adjusting mechanism and a self-adaptive seeding speed adjusting mechanism. The drip irrigation tape laying mechanism is arranged on the rear side of the rack and used for laying a drip irrigation tape; the anti-blocking seed feeding mechanism is arranged above the hole sowing type sowing mechanism and is used for supplying seeds; a plurality of groups of hole sowing type sowing mechanisms are horizontally arranged on the inner side of the rack and are used for sowing; the narrow-row-spacing rotary tillage mechanism is located at the front end of the rack and used for conducting rotary tillage and soil loosening on soil. The rack height adjusting mechanism is located between the upper rack and the lower rack and plays a role in connection and height adjustment. The self-adaptive seeding speed adjusting mechanism is arranged on the side face of the rack and used for adjusting the seeding speed. According to the invention, various designed mechanisms meet the requirements of integrated narrow-row-spacing plowing and sowing and no influence on wheat conditions.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural equipment, and more specifically relates to a narrow row spacing elevated corn sowing device based on interplanting conditions. Background Art

[0002] Corn-wheat intercropping technology is an advanced agronomic technology for the co-production of silage corn and wheat under specific regional conditions. Silage corn is corn that is harvested from all corn plants, including corn cobs, and then chopped, processed, and fermented to make silage feed. It is used to feed cattle, sheep and other livestock in winter and is very common in northern pastoral areas. The use of conventional tillage, film laying, sowing, or no-till sowing will affect the growth period of summer-sown silage corn, the yield and maturity of silage corn, and the quality of silage seed grains is not high due to insufficient filling. Especially in years with early frost, silage corn can only be harvested as grass, and the income of farmers cannot be guaranteed.

[0003] In this regard, my country has developed many efficient corn seeding machines to carry out experiments on interplanting corn with winter wheat under drip irrigation conditions. The more typical ones are precision seeding, which include finger-clamp type, pneumatic type, spoon wheel type and other models. This type of machine is usually composed of components such as seed taking mechanism, seed delivery mechanism, and seed discharge mechanism. Through research, it is found that most of the existing precision seeding machinery focuses on the efficiency problem in the corn sowing process, and often ignores the problem of the overall seeding machine being too large. For example, the existing interplanting machines are often improved from ordinary seeding machines, and they cannot fit the interplanting conditions required at present very well, so there will be some problems such as: too large volume, inappropriate row spacing, and wheat damage; for example, most of the current machines can only perform simple sowing work, and few integrate tillage and sowing, thereby saving time and reducing the number of machines that agricultural machinery goes to the ground for multiple times.

[0004] Therefore, how to provide a narrow row spacing elevated corn sowing device based on interplanting conditions that has a smaller volume, integrated tillage and sowing, and can meet the needs of narrow row spacing sowing is a technical problem that urgently needs to be solved in this field. Summary of the invention

[0005] In view of this, the present invention provides a narrow row spacing elevated corn sowing device based on interplanting conditions, which adopts the following technical solutions:

[0006] A narrow row spacing elevated corn sowing device based on interplanting conditions, comprising a frame, a drip irrigation belt laying mechanism, an adaptive sowing speed adjustment mechanism, a hole sowing mechanism, a narrow row spacing rotary tillage mechanism, a frame height adjustment mechanism and an anti-clogging seed delivery mechanism; the drip irrigation belt laying mechanism is arranged at the rear side of the frame, and is used to lay the drip irrigation belt while sowing corn; the hole sowing mechanism has a plurality of groups arranged horizontally on the inner side of the frame, and is used to sow a plurality of rows of corn; the anti-clogging seed delivery mechanism and the drip irrigation belt laying mechanism are both aligned with the hole sowing mechanism Several groups should be provided; the narrow row spacing rotary tillage mechanism is arranged at the lower side of the front section of the frame, and is used for loosening the soil and compacting the soil after loosening the soil; the adaptive sowing speed adjustment mechanism is arranged on the side of the frame, and is used for adjusting the sowing speed of the hole-seeding sowing mechanism; the frame height adjustment mechanism is provided with multiple groups, all of which are arranged at the same height position of the longitudinal beam of the frame, and are used for fixing the upper and lower parts of the frame through positioning pins to adjust the frame height; the anti-blocking seed delivery mechanism is arranged above the hole-seeding sowing mechanism, and is used for supplying seeds to the hole-seeding sowing mechanism.

[0007] Furthermore, the drip irrigation tape laying mechanism includes a drip irrigation tape storage wheel, a support bracket, an adjustment component, a furrow opener, a soil disturbing plate and a guide wheel; the furrow opener is adjustably connected to the frame, and the adjustment component is used to adjust the furrowing depth of the furrow opener; the drip irrigation tape storage wheel is wrapped with a drip irrigation tape and is arranged on the frame through the support bracket; the guide wheel is arranged in the furrow opener, rotatably connected to the furrow opener, and is used to guide the drip irrigation tape; the soil disturbing plate is arranged on one side of the furrow opener for backfilling with soil.

[0008] Furthermore, the adjustment assembly includes a connecting rod and an adjustment sleeve; the lower end of the connecting rod is connected to the furrow opener; the adjustment sleeve is slidably arranged on the upper end of the connecting rod, and the adjustment sleeve and the connecting rod are provided with a plurality of threaded holes corresponding to each other, which are used to fix the connecting rod to the frame by bolts.

[0009] Furthermore, the anti-clogging seed delivery mechanism includes a seed box and an anti-clogging seed guide tube, the seed box is fixed on the frame, and seeds for sowing are arranged inside; the anti-clogging seed guide tube is provided with a spiral guide plate inside to guide the seed flow; the anti-clogging seed guide tube is arranged at an angle, one end of which is connected to the opening at the lower end of the seed box, and the other end is connected to the hole-seeding sowing mechanism.

[0010] Furthermore, the hole-seeding sowing mechanism includes a hole-seeding wheel and a duckbill hole opener; the hole-seeding wheel includes an inner ring of a hole-seeding wheel, an outer ring of a hole-seeding wheel and a steel wing plate; the inner ring of the hole-seeding wheel is fixed on the frame; a slide rail is arranged on the inner side of the outer ring of the hole-seeding wheel; the steel wing plate is circumferentially arranged on the inner ring of the hole-seeding wheel; the steel wing plate cooperates with the slide rail to make the inner ring of the hole-seeding wheel rotatably connected to the outer ring of the hole-seeding wheel; the duckbill hole opener is evenly arranged in several groups along the circumference of the outer ring of the hole-seeding wheel for opening holes for sowing; a seed inlet is arranged on the side wall of the inner ring of the hole-seeding wheel, which is connected to the anti-blocking seed delivery mechanism; a seed discharge component is arranged inside the inner ring of the hole-seeding wheel, which is arranged at the seed inlet The hole-seeding wheel is provided with a first seed row opening at the lower part of the inner ring, and the seed-seeding assembly is connected to the first seed row opening; a plurality of second seed row openings corresponding to the duckbill hole opener are evenly arranged on the outer circumference of the outer ring of the hole-seeding wheel; the duckbill hole opener comprises a soil-opening mouth, a lever shaft, a spring and a lever plate; the soil-opening mouth is located in front of the rotation of the outer ring of the hole-seeding wheel and is fixed on the outer ring of the hole-seeding wheel; one end of the lever plate is rotatably connected to the outer ring of the hole-seeding wheel through the lever shaft, and the other end is connected to the outer ring of the hole-seeding wheel through a spring; there is a certain gap between the soil-opening mouth and the lever plate, and the second seed row opening is arranged between the soil-opening mouth and the lever shaft.

[0011] Furthermore, the seeding assembly includes a triangular shunt block, a friction disc A, a ramp block A, a friction disc B, a ramp block B and a hole wheel; one corner of the triangular shunt block points upward to the seed inlet and is fixed on the inner ring of the hole-seeding wheel for shunt; the friction disc A and the friction disc B, the ramp block A and the ramp block B are symmetrically arranged in the inner ring of the hole-seeding wheel along the triangular shunt block; a certain gap is set between the ramp block A and the friction disc A, and between the ramp block B and the friction disc B, so that seeds; the shaped hole wheel is arranged in the inner circle of the hole sowing wheel, between the slope block A and the slope block B, and there is a certain gap between the slope block A and the slope block B; a plurality of seed holes are evenly arranged on the outer surface of the shaped hole wheel, which are located above the first seed row port; the rotating shaft of the shaped hole wheel passes through the inner circle of the hole sowing wheel, and is connected to the output shaft of the stepper motor on the outer side of the inner circle of the hole sowing wheel; the stepper motor is fixed to the inner circle of the hole sowing wheel by bolts; the stepper motor is electrically connected to the adaptive sowing speed adjustment mechanism.

[0012] Furthermore, the narrow row spacing rotary tillage mechanism comprises multiple groups of rotary tillage units and a transmission main shaft; the transmission main shaft is connected to a reducer for connecting to a tractor to drive the multiple groups of rotary tillage units to operate; the transmission main shaft is rotatably connected to the multiple groups of rotary tillage units through multiple groups of elevated bearing seats; the rotary tillage unit comprises a pressing roller, a protective shell, a bearing seat, a rotary tillage knife group and a chain transmission group; the protective shell is fixedly connected to the frame; the pressing roller is rotatably arranged behind the protective shell for pressing and leveling; both ends of the rotary tillage knife group shaft are rotatably connected to the inside of the protective shell through bearing seats; the chain transmission group comprises a driving sprocket, a driven sprocket and a chain; the driving sprocket is fixedly connected to the transmission main shaft, the driven sprocket is fixedly connected to the rotary tillage knife group shaft, and the driving sprocket and the driven sprocket are connected and transmitted through a chain.

[0013] Furthermore, the adaptive broadcast speed adjustment mechanism includes a single-chip microcomputer processing system, a stepper motor controller, a speed sensor and a sensor sensing element; the speed sensor is arranged on one side of the frame, and the sensor sensing element is arranged on the outer ring of the hole broadcast wheel, for transmitting the signal to the speed sensor; the stepper motor controller is installed on the outside of the stepper motor and is electrically connected to the stepper motor; the single-chip microcomputer processing system is arranged on one side of the frame, electrically connected to the stepper motor controller, for receiving the signal sent by the speed sensor and transmitting the signal to the stepper motor controller.

[0014] Furthermore, the rack height adjustment mechanism includes a positioning pin, an anti-slip pin and a perforated limiting body; the longitudinal beam of the rack is divided into an upper part and a lower part, both of which are longitudinally provided with a plurality of positioning holes; the perforated limiting body is open on one side, and a plurality of positioning holes are provided on the side, which is sleeved on the upper and lower parts of the rack longitudinal beam; two positioning pins are provided, which respectively penetrate the perforated limiting body and the positioning holes on the rack longitudinal beam, and connect the upper and lower parts of the rack longitudinal beam through the perforated limiting body; the anti-slip pin is provided between the two positioning pins to prevent the positioning pin from detaching.

[0015] The beneficial effects of the present invention are:

[0016] 1. The arrangement and design of the inverted trapezoidal seed box, anti-blocking guide tube, seed inlet, triangular diverter block, slope block and friction plate effectively solve the problem of seed congestion during transportation;

[0017] 2. Through the speed sensor, single-chip processing system, stepper motor and stepper motor controller, the speed of the hole wheel can be changed synchronously with the actual movement speed of the outer ring of the hole seeding wheel, so as to ensure that the seeds fall into the seed holes accurately;

[0018] 3. The specially designed frame and seeding wheel are set according to the actual application scenarios. They can meet the needs of precision seeding under specific narrow row spacing and will not affect the growth and harvest of the original wheat.

[0019] 4. The rotary tillage mechanism with narrow row spacing is designed according to specific intercropping conditions. Its integrated arrangement with the sowing mechanism can meet the needs of loosening and leveling the soil before sowing, thus providing better conditions for sowing.

[0020] 5. The frame height adjustment mechanism is set according to the sowing conditions, and can adjust the height of wheat plants according to different wheat varieties, thereby preventing the frame from interfering with the wheat plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the furrow opener of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the rotary tillage mechanism of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the hole broadcasting wheel of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the duckbill hole opener of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the steel wing plate of the present invention;

[0028] Figure 7 It is a schematic diagram of the rack height adjustment mechanism of the present invention;

[0029] Figure 8 is a circuit schematic diagram of the present invention;

[0030] Among them, in the figure:

[0031] 1-drip irrigation belt laying mechanism; 2-adaptive sowing speed adjustment mechanism; 3-hole sowing mechanism; 4-narrow row spacing rotary tillage mechanism; 5-frame height adjustment mechanism; 6-anti-blocking seed delivery mechanism; 7-drip irrigation belt storage wheel; 8-support bracket; 9-adjustment mechanism; 10-ditch opener; 11-soil disturbance plate; 12-auxiliary support wheel; 13-single chip processing system; 14-speed sensor; 15-stepping motor; 16-stepping motor controller; 17-hole sowing wheel inner ring; 18-hole sowing wheel outer ring; 19-duckbill hole opener; 20-steel wing plate; 21-pressing roller; 22-protective shell; 23-bearing seat; 24-rotary tillage blade group; 25-speed reducer; 26-chain drive group; 27-elevated bearing seat; 28-drive main shaft; 29-locating pin; 30-limiting body with hole; 31-traction frame; 32-anti-blocking seed guide tube; 33-seed box; 34-triangular diverter block; 35-friction disc A; 36-ramp block A; 37-hole wheel; 38-ramp block B; 39-friction disc B; 40-guide wheel; 41-earth opening mouth; 42-lever shaft; 43-spring; 44-lever plate; 45-driven sprocket; 46-chain; 47-driving sprocket; 48-anti-drop pin. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Please see attached Figure 1-8 The present invention provides a narrow row spacing elevated corn sowing device based on intercropping conditions, comprising a frame, a drip irrigation tape laying mechanism 1, an anti-clogging seed delivery mechanism 6, a hole sowing mechanism 3, a narrow row spacing rotary tillage mechanism 4, a frame height adjustment mechanism 5, and an adaptive sowing speed adjustment mechanism 2; the drip irrigation tape laying mechanism 1 is arranged at the rear side of the frame, and is used to lay the drip irrigation tape while sowing corn; the narrow row spacing rotary tillage mechanism is arranged at the lower front side of the frame, and is used to till and level the soil; the adaptive sowing speed adjustment mechanism 2 is arranged on the side of the frame, and is used to adjust the sowing speed; the anti-clogging seed delivery mechanism 6 is arranged above the hole sowing mechanism 3, and is used to supply seeds to the hole sowing mechanism 3; the hole sowing mechanism 3 is horizontally arranged with a plurality of groups on the inner side of the frame, and is used to sow a plurality of rows of corn; the anti-clogging seed delivery mechanism 6 and the drip irrigation tape laying mechanism 1 are both arranged with a plurality of groups corresponding to the hole sowing mechanism 3.

[0034] A traction frame 31 is provided at the front end of the frame for mounting on a tractor; auxiliary support wheels 12 are provided at both sides of the lower part of the rear end of the frame for supporting the frame to travel.

[0035] The drip irrigation tape laying mechanism 1 includes a drip irrigation tape receiving wheel 7, a support bracket 8, an adjustment component 9, a furrow opener 10, a soil disturbing plate 11 and a guide wheel 40; the drip irrigation tape receiving wheel 7 is wound with a drip irrigation tape and is arranged on the frame through the support bracket 8; the furrow opener 9 is adjustably connected to the frame through the adjustment component 9, and the soil disturbing plate 11 is arranged on one side of the furrow opener 10, and is used for backfilling the laying furrow opened by the furrow opener 10. The guide wheel 40 is arranged in the furrow opener 10, and is rotatably connected to the furrow opener 10 through a rotating shaft, and is used to guide the movement trajectory of the limited drip irrigation tape.

[0036] The adjusting assembly 9 includes a connecting rod and an adjusting sleeve; the lower end of the connecting rod is connected to the furrow opener 10; the adjusting sleeve is sleeved on the upper end of the connecting rod, and the adjusting sleeve and the connecting rod are provided with a plurality of threaded holes corresponding to each other, which are used to fix the connecting rod to the frame by bolts; the connecting rod can be moved up and down, and the furrowing depth of the furrow opener 10 can be adjusted by replacing the corresponding threaded holes in the adjusting sleeve.

[0037] Before sowing, the frame height is adjusted according to the variety of wheat in the current plot. Then, when sowing, the frame moves forward, and the furrow opener 10 with adjusted furrowing depth opens a drip irrigation tape laying furrow on the side of the seed furrow. The drip irrigation tape on the drip irrigation tape receiving wheel 7 is laid downward in the drip irrigation tape laying furrow, and then the soil disturbing plate 11 scrapes the soil on one side back into the seed furrow, thereby achieving the soil backfilling effect.

[0038] The anti-clogging seed delivery mechanism 6 includes a seed box 33 and an anti-clogging seed guide tube 32. The seed box 33 is in an inverted trapezoidal shape and is fixed on the frame. Seeds for sowing are arranged inside. The anti-clogging seed guide tube 32 is arranged at an angle, one end of which is connected to the opening at the lower end of the seed box 33, and the other end is connected to the hole-seeding sowing mechanism 3. The inner wall of the anti-clogging seed guide tube 32 is provided with an extremely thin and short spiral guide plate, which uses centrifugal force to disperse the seeds, forming a rotating falling trajectory to avoid accumulation.

[0039] The central axis of the connection between the anti-clogging seed guide tube 32 and the seed box 33, and the central axis of the connection between the anti-clogging seed guide tube 32 and the hole-seeding sowing mechanism 3 are both non-horizontally set; the seed guiding channel of the anti-clogging seed guide tube 32 is tilted throughout, which can reduce seed blockage by reducing the horizontal trajectory.

[0040] The hole-seeding sowing mechanism 3 includes a hole-seeding wheel and a duckbill hole opener 19; the hole-seeding wheel is mounted on the frame; the duckbill hole openers 19 are evenly arranged in a plurality of groups along the circumference of the hole-seeking wheel for opening holes for sowing.

[0041] The hole-casting wheel includes a hole-casting wheel inner ring 17, a hole-casting wheel outer ring 18 and a steel wing plate 20; the hole-casting wheel inner ring 17 is fixed on the frame; a slide rail is arranged on the inner side of the hole-casting wheel outer ring 18; the steel wing plate 20 is circumferentially arranged on the hole-casting wheel inner ring 17; the steel wing plate 20 cooperates with the slide rail to make the hole-casting wheel inner ring 17 rotatably connected with the hole-casting wheel outer ring 18.

[0042] The inner ring 17 of the hole-seeding wheel is arranged vertically in a disc shape, and a seed inlet is arranged on the side wall, which is connected to the anti-blocking seed guide tube 32; a seed discharge assembly is arranged inside the inner ring 17 of the hole-seeding wheel, and is arranged below the seed inlet; a first seed discharge port is arranged at the lower part of the inner ring 17 of the hole-seeding wheel, and the seed discharge assembly is connected to the first seed discharge port, and the seeds put into the seed inlet are discharged one by one.

[0043] The seeding assembly includes a triangular diverter block 34, a friction disc A35, a ramp block A36, a friction disc B39, a ramp block B38 and a hole wheel 37; one corner of the triangular diverter block 34 points upward to the seed inlet and is fixed on the inner ring 17 of the hole sowing wheel to divide the seed flow entering from the seed inlet; the friction disc A35 and the friction disc B39 are symmetrically arranged in the inner ring 17 of the hole sowing wheel along the triangular diverter block 34; the ramp block A36 and the ramp block B38 are symmetrically arranged in the inner ring 17 of the hole sowing wheel along the triangular diverter block 34; the ramp block A36 and the friction disc A35 are symmetrically arranged in the inner ring 17 of the hole sowing wheel A certain gap is set between the slope block B38 and the friction disk B39, so that seeds can pass through; a certain gap is set between the slope block B38 and the friction disk B39, so that seeds can pass through; the hole wheel 37 is set in the inner ring 17 of the hole sowing wheel, located between the slope block A36 and the slope block B38, and there is a certain gap between the slope block A36 and the slope block B38; a number of seed holes are evenly set on the outer surface of the hole wheel 37 for setting seeds; the lower part of the hole wheel 37 is the first seed opening, and the seeds in the seed holes on the hole wheel 37 fall into the first seed opening when the hole wheel 30 rotates and drives them to the lower part. The rotating shaft of the hole wheel 37 passes through the inner ring 17 of the hole sowing wheel, and the output shaft of the stepper motor 15 is connected to the outer side of the inner ring 17 of the hole sowing wheel; the stepper motor 15 is fixed to the inner ring 17 of the hole sowing wheel by bolts; the stepper motor 15 is electrically connected to the adaptive sowing speed adjustment mechanism 2.

[0044] The triangular shunt block 34 shunts the seeds dropped from the seed inlet to prevent a large amount of seed flow from impacting the hole wheel 37 and causing movement obstruction, and the friction disk A35 and the friction disk B39 disturb to prevent blockage or too slow movement of the seeds, so that the seeds move downward to the hole wheel 37 and enter the seeding hole, and are driven by the hole wheel 37 to rotate downward and fall into the first seeding port. The triangular shunt block 34 prevents a large amount of seeds entering the inner ring 17 of the hole sowing wheel from falling directly onto the hole wheel 37, thereby avoiding the situation where the hole wheel 37 is stuck or movement is obstructed.

[0045] The outer circumference of the hole seeding wheel outer ring 18 is evenly arranged with a plurality of groups of duckbill hole openers 19 and a plurality of second seed row openings corresponding to the duckbill hole openers 19; when the first seed row opening coincides with the second seed row opening, the seeds in the inner ring 17 of the hole seeding wheel fall into the hole from the second seed row opening after being sown by the sowing assembly. The duckbill hole opener 19 plays the role of determining the opening and closing of the second seed row opening, and includes a soil opening mouth 41, a lever shaft 42, a spring 43 and a lever plate 44; the soil opening mouth 41 is located in front of the rotation of the hole seeding wheel outer ring 18 and is fixed on the hole seeding wheel outer ring 18; one end of the lever plate 44 is rotatably connected to the hole seeding wheel outer ring 18 through the lever shaft 42, and the other end is connected to the hole seeding wheel outer ring 18 through the spring 43; there is a certain gap between the soil opening mouth 41 and the lever plate 44, and the second seed row opening is arranged between the soil opening mouth 41 and the lever shaft 42. When not sowing, due to the action of spring 43, the outer end of lever plate 44 fits with soil opening mouth 41 to close the second row seed opening. When sowing, the outer ring 18 of the hole sowing wheel rotates along the inner ring 17 of the hole sowing wheel, and the soil opening mouth 41 shovels out a seed hole in front. After one end of lever plate 44 connected to spring 43 contacts the ground and is compressed, spring 43 is compressed, causing lever plate 44 to rotate along lever shaft 42, and a certain gap is generated between one side of lever plate 44 and one side of soil opening mouth 41, so that the second row seed opening is opened, and seeds fall into the seed hole from the second row seed opening to complete sowing. After sowing, due to the action of spring 43, the outer end of lever plate 44 fits with soil opening mouth to close the second row seed opening.

[0046] The narrow row spacing rotary tillage mechanism 4 includes multiple groups of rotary tillage units and a transmission main shaft 28; the middle of the transmission main shaft 28 is connected to a reducer 25 for connecting to a tractor to drive multiple groups of rotary tillage units to operate; the transmission main shaft 28 is rotatably connected to multiple groups of rotary tillage units through multiple groups of elevated bearing seats 27; the rotary tillage unit includes a pressing roller 21, a protective shell 22, a bearing seat 23, a rotary tillage blade group 24 and a chain transmission group 26; the protective shell 22 is fixedly connected to the frame; the pressing roller 21 It is rotatably arranged at the rear of the protective shell 22 for pressing and leveling; both ends of the rotating shaft of the rotary tiller group 24 are rotatably connected to the inside of the protective shell 22 through the bearing seat 23; the chain transmission group 26 includes a driving sprocket 47, a driven sprocket 45 and a chain 46; the driving sprocket 47 is fixedly connected to the transmission main shaft 28, the driven sprocket 45 is fixedly connected to the rotating shaft of the rotary tiller group 24, and the driving sprocket 47 and the driven sprocket 45 are connected and driven by a chain 46.

[0047] The self-adaptive broadcast speed adjustment mechanism 2 includes a single-chip processing system 13, a stepper motor controller 16, a speed sensor 14 and a sensor sensing element; the speed sensor 14 is arranged on one side of the frame, and the sensor sensing element is arranged on the outer ring 18 of the hole broadcast wheel. When the sensor sensing element rotates with the outer ring 18 of the hole broadcast wheel to the point of gravity corresponding to the center end of the speed sensor 14, the signal is transmitted to the speed sensor 14. The stepper motor controller 16 is installed outside the stepper motor 15 and is electrically connected to the stepper motor 15; the single-chip processing system 13 is arranged on one side of the frame, includes a wireless signal module, electrically connected to the stepper motor controller 16, and is used to receive the signal sent by the speed sensor 14 and transmit the signal to the stepper motor controller 16.

[0048] During operation, the outer ring 18 of the hole-seeding wheel rotates at a certain speed. The speed sensor 14 and the sensor sensing element together measure the movement speed of the outer ring 18 of the hole-seeding wheel, and transmit the signal to the single-chip processing system 13. The single-chip processing system 13 performs speed matching according to a pre-set program, and sends the speed that the hole-forming wheel 30 should match to the stepper motor controller 16, thereby further controlling the stepper motor 15 to adjust the speed of the hole-forming wheel 37 to ensure that when the duckbill hole opener 19 opens, the seeds are discharged from the hole-forming wheel 37 and fall into the seed holes through the first and second rows of seed openings.

[0049] The present invention is used for wheat-corn interplanting technology. Since the corn planting time is about one month before the wheat is harvested, the wheat is basically mature at this time and its height has basically reached the standard height when mature. Therefore, the present invention is designed not to touch, scratch, roll, etc. the wheat when sowing corn, so as to ensure that the wheat will not suffer from the reduction in yield caused by corn sowing when harvesting. Therefore, a special high frame is designed in the present invention to ensure that the above phenomenon does not occur. The structural parameters of the frame should meet the lowest height of the frame in the wheat growth range to adapt to the current plot environment, so as to ensure that the frame will not scratch and touch the wheat seed ears. At the same time, the weight and cost of the frame should also be noted in the process of expanding the frame size. Therefore, a frame height adjustment mechanism is designed in the present invention to meet the above conditions. The frame height adjustment mechanism is used to adjust the frame height according to the height of the wheat to achieve the purpose of reducing interference with the wheat.

[0050] The frame height adjustment mechanism 5 includes a positioning pin 29, an anti-dropout pin 48 and a perforated limiting body 30; the longitudinal beam of the frame is divided into an upper part and a lower part, both of which are longitudinally provided with a plurality of positioning holes; the perforated limiting body 30 is open on one side, and a plurality of positioning holes are provided on the side, which are sleeved on the upper and lower parts of the frame longitudinal beam; two positioning pins 29 are provided, which respectively penetrate the perforated limiting body 30 and the positioning holes on the frame longitudinal beam, and connect the upper and lower parts of the frame longitudinal beam through the perforated limiting body 30; the anti-dropout pin 48 is provided between the two positioning pins 29 to prevent the positioning pin 29 from detaching.

[0051] The working principle of the present invention is:

[0052] First, the tractor is started, the traction frame 31 is mounted, and it is connected to the reducer 25 to ensure power output, then the electronic control system is turned on, and the tractor moves forward; the rotary tillage blade group 24 starts to work under the action of the chain drive, constantly breaking up the soil to achieve the purpose of loosening the soil, and then the pressing roller 21 presses and levels the land; at the same time, the duckbill hole opener 19 on the outer ring 18 of the hole seeding wheel starts to make a circular motion under the action of friction, digging the soil in the land to form a seed hole, and at this time, the hole wheel 37 starts to move according to the matching speed under the action of the adaptive sowing speed adjustment mechanism 2, and a large amount of seeds pass through the seed box 33 and flow through the anti-blocking The seed guide tube 32, seed inlet, and triangular diverter block 34 are plugged and enter the hole wheel 37 under the disturbance of the two friction disks; when the duckbill hole opener 19 is in working state, when the lever plate 44 receives the ground pressure, the duckbill is opened immediately, and the spring 43 is compressed to accumulate elastic force, and the seeds are separated from the hole wheel 37, and then escape from the first row of seed openings and the second row of seed openings, and then fall into the seed hole after passing through the opened duckbill. After this action is completed, the outer ring 18 of the hole sowing wheel continues to rotate with the duckbill hole opener 19, the lever plate 44 is separated from the ground and the pressure disappears, and the lever plate 44 rebounds to the initial position under the action of the spring 43, and the duckbill mouth state becomes closed. At this time, the sowing process of a seed hole is completed, and the sowing movement will be repeated in a cycle.

[0053] When the speed of the towing tractor changes, the speed of the outer ring 17 of the hole-casting wheel also changes accordingly, so that the adaptive sowing speed adjustment mechanism 2 will analyze the actual speed after the change through the single-chip processing system 13 and transmit the output signal to the stepper motor 15, thereby achieving the effect of matching the rotation speed of the outer ring 18 of the hole-casting wheel with the hole wheel 37.

[0054] During the sowing process, the machine continues to move forward, and the furrow opener 10 will open a drip irrigation belt laying furrow on the side of the seed furrow. Then the soil disturbing plate 11 on the side of the furrow opener 10 will scrape the soil on both sides back into the seed furrow, thereby achieving a certain degree of soil backfilling effect.

[0055] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A narrow row spacing elevated corn sowing device based on interplanting conditions, characterized in that: The invention comprises a frame, a drip irrigation tape laying mechanism (1), an adaptive sowing speed adjustment mechanism (2), a hole-seeding sowing mechanism (3), a narrow row spacing rotary tillage mechanism (4), a frame height adjustment mechanism (5) and an anti-clogging seed delivery mechanism (6); the drip irrigation tape laying mechanism (1) is arranged at the rear side of the frame and is used to lay the drip irrigation tape while sowing corn; the hole-seeding sowing mechanism (3) is provided with a plurality of groups horizontally on the inner side of the frame and is used to sow a plurality of rows of corn; the anti-clogging seed delivery mechanism (6) and the drip irrigation tape laying mechanism (1) are both provided with a plurality of groups corresponding to the hole-seeding sowing mechanism (3). The narrow row spacing rotary tillage mechanism (4) is arranged at the lower side of the front section of the frame, and is used for loosening the soil and compacting the soil after loosening; the adaptive sowing speed adjustment mechanism (2) is arranged on the side of the frame, and is used for adjusting the sowing speed of the hole sowing sowing mechanism (3); the frame height adjustment mechanism (5) is provided with multiple groups, all of which are arranged at the same height position of the longitudinal beam of the frame, and are used for fixing the upper part and the lower part of the frame through the positioning pin (29) to adjust the height of the frame; the anti-blocking seed feeding mechanism (6) is arranged above the hole sowing sowing mechanism (3), and is used for supplying seeds to the hole sowing sowing mechanism (3).

2. The narrow row spacing elevated corn sowing device based on interplanting conditions according to claim 1 is characterized in that: The drip irrigation tape laying mechanism (1) comprises a drip irrigation tape receiving wheel (7), a support bracket (8), an adjustment component (9), a furrow opener (10), a soil disturbing plate (11) and a guide wheel (40); the furrow opener (10) is adjustably connected to the frame, and the adjustment component (9) is used to adjust the furrowing depth of the furrow opener (10); the drip irrigation tape is wound around the drip irrigation tape receiving wheel (7), and is arranged on the frame through the support bracket (8); the guide wheel (40) is arranged in the furrow opener (10), is rotatably connected to the furrow opener (10), and is used to guide the drip irrigation tape; the soil disturbing plate (11) is arranged on one side of the furrow opener (10), and is used to cover and backfill.

3. The narrow row spacing elevated corn sowing device based on interplanting conditions according to claim 2, characterized in that: The adjustment assembly (9) comprises a connecting rod and an adjustment sleeve; the lower end of the connecting rod is connected to the furrow opener (10); the adjustment sleeve is slidably arranged on the upper end of the connecting rod, and the adjustment sleeve and the connecting rod are provided with a plurality of threaded holes corresponding to each other, for fixing the connecting rod to the frame by bolts.

4. The narrow row spacing elevated corn sowing device based on interplanting conditions according to claim 1, characterized in that: The anti-clogging seed delivery mechanism (6) comprises a seed box (33) and an anti-clogging seed guide tube (32); the seed box (33) is fixedly mounted on the frame and contains seeds for sowing; the anti-clogging seed guide tube (32) contains a spiral guide plate for guiding the seed flow; the anti-clogging seed guide tube (32) is tilted, with one end connected to the opening at the lower end of the seed box (33) and the other end connected to the hole-seeding sowing mechanism (3).

5. The narrow row spacing elevated corn sowing device based on interplanting conditions according to claim 1, characterized in that: The hole-seeding sowing mechanism (3) comprises a hole-seeding wheel and a duckbill hole opener (19); the hole-seeding wheel comprises a hole-seeding wheel inner ring (17), a hole-seeding wheel outer ring (18) and a steel wing plate (20); the hole-seeding wheel inner ring (17) is fixedly arranged on the frame; a slide rail is arranged on the inner side of the hole-seeding wheel outer ring (18); the steel wing plate (20) is circumferentially arranged on the hole-seeding wheel inner ring (17); the steel wing plate (20) cooperates with the slide rail , so that the inner ring (17) of the hole sowing wheel is rotatably connected to the outer ring (18) of the hole sowing wheel; the duckbill hole openers (19) are evenly arranged in a plurality of groups along the circumference of the outer ring (18) of the hole sowing wheel for opening holes for sowing; a seed inlet is arranged on the side wall of the inner ring (17) of the hole sowing wheel, which is connected to the anti-blocking seed delivery mechanism (6); a seed discharge assembly is arranged inside the inner ring (17) of the hole sowing wheel, which is arranged below the seed inlet; the hole sowing wheel A first seed row opening is arranged at the lower part of the inner ring (17), and the seed row assembly is connected to the first seed row opening; a plurality of second seed row openings corresponding to the duckbill hole opener (19) are evenly arranged on the outer circumference of the outer ring (18) of the hole sowing wheel; the duckbill hole opener (19) comprises a soil opening mouth (41), a lever shaft (42), a spring (43) and a lever plate (44); the soil opening mouth (41) is located in front of the rotation of the outer ring (18) of the hole sowing wheel, and is fixed on the outer ring (18) of the hole sowing wheel; one end of the lever plate (44) is rotatably connected to the outer ring (18) of the hole sowing wheel through the lever shaft (42), and the other end is connected to the outer ring (18) of the hole sowing wheel through the spring (43); there is a certain gap between the soil opening mouth (41) and the lever plate (44), and the second seed row opening is arranged between the soil opening mouth (41) and the lever shaft (42).

6. The narrow row spacing elevated corn sowing device based on interplanting conditions according to claim 5, characterized in that: The seeding assembly comprises a triangular diverter block (34), a friction disc A (35), a ramp block A (36), a friction disc B (39), a ramp block B (38) and a hole wheel (37); one corner of the triangular diverter block (34) points upward to the seed inlet and is fixed on the inner ring (17) of the seeding wheel for diverting; the friction disc A (35) and the friction disc B (39), the ramp block A (36) and the ramp block B (38) are symmetrically arranged along the triangular diverter block (34) in the inner ring (17) of the seeding wheel; a certain gap is arranged between the ramp block A (36) and the friction disc A (35), and between the ramp block B (38) and the friction disc B (39). The hole wheel (37) is arranged in the inner ring (17) of the hole sowing wheel, between the slope block A (36) and the slope block B (38), and there is a certain gap between the slope block A (36) and the slope block B (38); a plurality of seeding holes are evenly arranged on the outer surface of the hole wheel (37), which are located above the first seeding opening; the rotating shaft of the hole wheel (37) passes through the inner ring (17) of the hole sowing wheel, and is connected to the output shaft of the stepping motor (15) on the outer side of the inner ring (17) of the hole sowing wheel; the stepping motor (15) is fixed to the inner ring (17) of the hole sowing wheel by bolts; the stepping motor (15) is electrically connected to the adaptive sowing speed adjustment mechanism (2).

7. The narrow row spacing elevated corn sowing device based on interplanting conditions according to claim 1, characterized in that: The narrow row spacing rotary tillage mechanism (4) comprises a plurality of rotary tillage units and a transmission main shaft (28); the transmission main shaft (28) is connected to a reducer (25) and is used to connect to a tractor to drive the plurality of rotary tillage units to operate; the transmission main shaft (28) is rotatably connected to the plurality of rotary tillage units via a plurality of elevated bearing seats (27); the rotary tillage unit comprises a pressing roller (21), a protective shell (22), a bearing seat (23), a rotary tillage blade group (24) and a chain transmission group (26); the protective shell (22) is fixedly connected to the frame; the pressing roller (21) is rotatably connected to the frame; The rotary tiller blade assembly (24) is arranged behind the protective housing (22) for compaction and leveling; the two ends of the rotary shaft of the rotary tiller blade assembly (24) are rotatably connected to the interior of the protective housing (22) via a bearing seat (23); the chain transmission assembly (26) comprises a driving sprocket (47), a driven sprocket (45) and a chain (46); the driving sprocket (47) is fixedly connected to the transmission main shaft (28), the driven sprocket (45) is fixedly connected to the rotary shaft of the rotary tiller blade assembly (24), and the driving sprocket (47) and the driven sprocket (45) are connected and driven via a chain (46).

8. The narrow row spacing elevated corn sowing device based on interplanting conditions according to claim 5, characterized in that: The self-adaptive broadcast speed adjustment mechanism (2) comprises a single-chip processing system (13), a stepper motor controller (16), a speed sensor (14) and a sensor sensing element; the speed sensor (14) is arranged on one side of the frame, and the sensor sensing element is arranged on the outer ring (18) of the hole broadcast wheel, and is used to transmit a signal to the speed sensor (14); the stepper motor controller (16) is installed outside the stepper motor (15) and is electrically connected to the stepper motor (15); the single-chip processing system (13) is arranged on one side of the frame, and is electrically connected to the stepper motor controller (16), and is used to receive a signal sent by the speed sensor (14) and transmit the signal to the stepper motor controller (16).

9. The narrow row spacing elevated corn sowing device based on interplanting conditions according to claim 1, characterized in that: The frame height adjustment mechanism (5) comprises a positioning pin (29), an anti-drop pin (48) and a perforated limiting body (30); the longitudinal beam of the frame is divided into an upper part and a lower part, both of which are longitudinally provided with a plurality of positioning holes; the perforated limiting body (30) is open on one side and is provided with a plurality of positioning holes on the side, and is sleeved on the upper part and the lower part of the frame longitudinal beam; two positioning pins (29) are provided, which respectively penetrate the perforated limiting body (30) and the positioning holes on the frame longitudinal beam, and connect the upper part and the lower part of the frame longitudinal beam through the perforated limiting body (30); the anti-drop pin (48) is provided between the two positioning pins (29) to prevent the positioning pin (29) from being separated.

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