CN114946352B - Accurate layering application equipment of winter wheat nitrogen phosphorus fertilizer - Google Patents
Accurate layering application equipment of winter wheat nitrogen phosphorus fertilizer Download PDFInfo
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- CN114946352B CN114946352B CN202210641525.8A CN202210641525A CN114946352B CN 114946352 B CN114946352 B CN 114946352B CN 202210641525 A CN202210641525 A CN 202210641525A CN 114946352 B CN114946352 B CN 114946352B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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Abstract
The invention discloses accurate layering application equipment for nitrogen and phosphorus fertilizer of winter wheat, which comprises a frame arranged on an agricultural machine body, wherein a plurality of rows of layering fertilization units are arranged on the frame, each layering fertilization unit in each row of layering fertilization units is arranged at intervals along the advancing direction of the agricultural machine, a fluctuation transmission mechanism is constructed between the frame and each row of layering fertilization units, and the fluctuation transmission mechanism acts through a driving mechanism to form a fluctuation transmission mechanism to drive each layering fertilization unit in each row of layering fertilization units to move up and down. The invention can complete synchronous layered fertilization of crops, ensures that crops such as wheat and the like are in a better growth environment, and can remarkably improve the yield and nutrient efficiency of the wheat. The invention is suitable for the technical field of synchronous fertilization of soil at different depths in agricultural production.
Description
Technical Field
The invention belongs to the technical field of agricultural production, and particularly relates to accurate layering application equipment for nitrogen-phosphorus fertilizer of winter wheat.
Background
Wheat is a main grain crop in North China, high and stable yield of the wheat plays a very important role in guaranteeing national grain safety, and fertilization is a key factor for guaranteeing high and stable yield of the wheat. The conventional fertilization mode of wheat is to spread fertilizer to soil surface, and then uniformly distribute the fertilizer on the plough layer soil through rotary tillage or ploughing. The rotary tillage depth is generally 12-16cm, the turning depth is generally 20-25cm, and the rotary tillage treatment mode is mainly adopted at present. The root system growth of crops has fertilizer-seeking property, and the root system can intensively grow in the area with large nutrient concentration. The conventional fertilization mode can cause surface aggregation of the wheat root system, is not beneficial to the downward binding of the wheat root system, and reduces the utilization efficiency of nutrient and moisture of soil at the middle and lower layers. Researches show that the fertilizer application depth can induce the corn root system to be pricked down, so that the corn yield and nutrient absorption capacity are improved, but the layering property and rationality of the fertilizer are not deeply researched, and matched equipment is not provided to finish synchronous layering fertilizer application to crops.
Disclosure of Invention
The invention provides accurate layering application equipment for nitrogen and phosphorus fertilizer of winter wheat, which is used for completing synchronous layering fertilization of crops, so that the crops such as wheat are in a better growth environment, and the yield and nutrient efficiency of the wheat can be remarkably improved.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an accurate layering of winter wheat nitrogen phosphorus fertilizer is applied equipment, includes the frame of installing on the agricultural machine body, install the layering fertilization unit of multirow on the frame, each layering fertilization unit in each row of layering fertilization unit sets up along the advancing direction interval of agricultural machine, the frame is constructed with between these layering fertilization units of row and is provided with the fluctuation drive mechanism, fluctuation drive mechanism moves through actuating mechanism to constitute the fluctuation drive mechanism and drive each layering fertilization unit of each row and reciprocate.
Further, the fluctuation type transmission mechanism comprises driving rods which are arranged above each row of layered fertilization units one by one, each driving rod is rotationally connected to the frame and extends along the arrangement direction of the layered fertilization units, a pressing wheel is respectively arranged on the driving rods and corresponds to the layered fertilization units, the pressing wheels are provided with pressing parts and return parts, the pressing parts and the return parts are in smooth transition, the number of the pressing parts is the same as that of the return parts, the pressing parts and the return parts are alternately arranged along the axial direction of the driving rods, an installation seat is arranged at the upper end of each layered fertilization unit, rollers are rotationally connected to the installation seat, the rollers are located below the pressing wheels, the corresponding peripheral surfaces of the pressing wheels are in mutual butt joint, and a return mechanism is arranged between each layered fertilization unit and the frame.
Further, the return mechanism comprises a guide rod fixedly mounted on the mounting seat and extending downwards along the vertical direction, the guide rod is in sliding connection with the frame, a return spring is sleeved outside the guide rod, two ends of the return spring are respectively connected with surfaces corresponding to the mounting seat and the frame, and the radial section of the guide rod is circular or regular polygon.
Further, the driving mechanism comprises a driving motor arranged on the frame, a driving wheel is coaxially arranged on an output shaft of the driving motor, driven wheels are respectively arranged on the driving rods, and the driving wheel and the driven wheels are in transmission connection through a transmission belt.
Further, the layered fertilization unit comprises a distribution box which is movably connected with the frame and can vertically slide, the distribution box is communicated with a fertilizer box arranged on the frame through a hose, the bottom of the fertilizer box is higher than the top of the distribution box, and a plurality of fertilization inserting rods with different lengths are connected to the bottom of the distribution box.
Further, the fertilizing inserting rod is provided with a fertilizing channel communicated with the distribution box, and a plurality of fertilizing holes communicated with the fertilizing channel are formed in the lower part of the fertilizing inserting rod; a bowl-shaped groove is formed in the bottom of the distribution box, a spherical joint is assembled in the bowl-shaped groove, a flange is formed at one end, far away from the distribution box, of the spherical joint, the spherical joint is detachably connected with a fertilization inserting rod through the flange, a through hole is formed in the bottom of the distribution box, a bell mouth is formed in the upper end of the spherical joint, the large-diameter end of the bell mouth is communicated with the through hole, and the small-diameter end of the bell mouth is communicated with the fertilization channel through a communication channel; when the spherical joint rotates to a limit value in the bowl-shaped groove, the edge of the flange is abutted against the bottom of the distribution box, and the through hole, the bell mouth, the through channel, the fertilization channel and the fertilization hole are mutually communicated.
Further, a hollow cone-shaped plug is movably connected to the lower end of the fertilization inserting rod, a movable sleeve is constructed at the large-diameter end of the cone-shaped plug, and the movable sleeve is sleeved at the lower end of the fertilization inserting rod.
Further, a conical spring is installed in the conical plug, the lower end of the conical spring is fixedly connected with the bottom wall of the inner cavity of the conical plug, the upper end of the conical spring is fixed on the end face of the lower end of the fertilization inserting rod, the conical plug is coaxially connected with a rod body extending into the conical plug from the lower end of the fertilization inserting rod, and an opening and closing assembly is constructed between the rod body and the fertilization channel of the fertilization inserting rod.
Further, the opening and closing assembly comprises a flange which is constructed on the peripheral wall of the fertilization channel and extends inwards along the radial direction of the fertilization inserting rod, a fertilizer passing opening is formed in the inner ring of the flange, the upper end of the rod body extends out of the fertilizer passing opening, and a starting block is arranged at the upper end of the rod body.
Further, the opening and closing assembly comprises a lower fertilizer passing plate constructed in the fertilizer application channel, lower openings are uniformly formed in the lower fertilizer passing plate along the circumferential direction of the lower fertilizer passing plate, a pore channel for the rod body to pass through is formed in the center of the lower fertilizer passing plate, an upper fertilizer passing plate is mounted at the upper end of the rod body, upper openings are uniformly formed in the upper fertilizer passing plate along the circumferential direction of the upper fertilizer passing plate, and the upper openings and the lower openings are staggered.
Compared with the prior art, the invention adopts the structure, and the technical progress is that: according to the invention, each layered fertilization unit of each row of layered fertilization units is driven by the driving mechanism to move up and down under the transmission of the fluctuation transmission mechanism, so that when the layered fertilization unit moves downwards until being inserted into soil, fertilization of different depths of the soil by the layered fertilization unit is realized, and when the layered fertilization unit moves upwards until leaving the soil, the layered fertilization unit stops fertilization, and continuous fertilization operation of the soil is realized along with the advancing of an agricultural machine; in conclusion, the synchronous layered fertilization of crops can be completed, so that crops such as wheat are in a better growth environment, and the yield and nutrient efficiency of the wheat can be remarkably improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a front view of a structure of an embodiment of the present invention;
FIG. 3 is a side view of the structure of an embodiment of the present invention;
FIG. 4 is a schematic diagram of a layered fertilization unit and a top pinch roller in a driving connection structure according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a layered fertilization unit in accordance with an embodiment of the present invention in driving connection with another top pinch roller;
FIG. 6 is a schematic diagram of a layered fertilization unit according to an embodiment of the present invention;
FIG. 7 is a schematic view of a fertilizer insert bar, ball joint and cone plug in a layered fertilizer unit according to an embodiment of the present invention;
FIG. 8 is an enlarged view of the structure of the portion A in FIG. 7;
FIG. 9 is a schematic diagram of an opening and closing assembly according to an embodiment of the present invention;
FIG. 10 is a schematic structural view of a fertilizer passing board according to an embodiment of the present invention;
fig. 11 is a schematic structural view of connection between the fertilizer passing plate and the rod body according to the embodiment of the present invention.
Marking parts: 100-frame, 200-driving motor, 201-driving wheel, 202-driving rod, 203-pressing wheel, 2031-pressing part, 2032-return part, 204-driven wheel, 205-driving belt, 300-layered fertilization unit, 301-fertilization rod, 3011-fertilization inserted bar, 3012-fertilization sleeve, 3013-taper plug, 3014-fertilization hole, 3015-movable sleeve, 302-distribution box, 3021-bottom of distribution box, 3022-via hole, 3023-bowl-shaped groove, 303-hose, 304-mounting seat, 305-roller, 306-guide rod, 307-return spring, 308-spherical joint, 309-via channel, 310-horn mouth, 311-rod body, 312-taper spring, 313-opening and closing, 314-flange, 315-fertilizer passing mouth, 316-lower fertilizer passing plate, 317-lower opening, 318-opening, 319-upper fertilizer passing plate, 320-upper opening, 321-fertilizer applying channel.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are presented for purposes of illustration and explanation only and are not intended to limit the present invention.
The invention discloses precise layering application equipment for nitrogen-phosphorus fertilizer of winter wheat, which is shown in fig. 1-3 and comprises a frame 100, a driving mechanism, a fluctuation type transmission mechanism and a multi-row layering fertilization unit 300. Wherein, the frame 100 is mounted on the machine body of the agricultural machine, the above-mentioned multi-row layered fertilization units 300 are mounted on the frame 100 side by side, and each layered fertilization unit 300 in each row of layered fertilization units 300 is arranged at intervals along the travelling direction of the agricultural machine. The undulating transmission mechanism is constructed between the frame 100 and the rows of layered fertilization units 300, and acts through the driving mechanism, so that the undulating transmission mechanism drives each layered fertilization unit 300 of each row of layered fertilization units 300 to move up and down in an undulating manner. The working principle and the advantages of the invention are as follows: according to the invention, the layered fertilization units 300 of each row of layered fertilization units 300 are driven by the driving mechanism to move up and down under the transmission of the fluctuation type transmission mechanism, so that when the layered fertilization units 300 move downwards until being inserted into soil, the layered fertilization units 300 are further used for fertilizing different depths of the soil, and when the layered fertilization units 300 move upwards until leaving the soil, the layered fertilization units 300 stop fertilizing, and the continuous fertilization operation of the soil is further realized along with the advancing of agricultural machinery; in conclusion, the synchronous layered fertilization of crops can be completed, so that crops such as wheat are in a better growth environment, and the yield and nutrient efficiency of the wheat can be remarkably improved.
As a preferred embodiment of the present invention, as shown in fig. 1 to 5, the undulating transmission mechanism includes a plurality of driving levers 202, which are disposed one by one above each column of layered fertilization units 300, each driving lever 202 is rotatably coupled to the frame 100, and the driving levers 202 extend in the arrangement direction of the layered fertilization units 300. In this embodiment, the top pressing wheels 203 are respectively arranged on the driving rod 202 and at the positions corresponding to the layered fertilization units 300. The pressing wheel 203 has a pressing portion 2031 and a return portion 2032, and the pressing portion 2031 and the return portion 2032 smoothly transition. The number of the pressing portions 2031 and the returning portions 2032 is the same in this embodiment, and the number of the pressing portions 2031 is at least one, and the pressing portions 2031 and the returning portions 2032 are alternately arranged in the axial direction of the drive lever 202. In order to realize that the layered fertilization unit 300 is driven to undulate, the embodiment adopts measures that a mounting seat 304 is mounted at the upper end of the layered fertilization unit 300, a roller 305 is rotatably connected to the mounting seat 304, the roller 305 is positioned below the top pressing wheel 203, the corresponding peripheral surfaces of the roller 305 and the top pressing wheel 203 are mutually abutted, and a return mechanism is arranged between the layered fertilization unit 300 and the frame 100. The working principle of the embodiment is as follows: the driving lever 202 is driven to rotate so that the top pressing wheel 203 rotates with the driving lever 202, and the top pressing part 2031 and the return part 2032 of the top pressing wheel 203 alternately press against the surface of the roller 305 with the rotation, so that the layered fertilization unit 300 descends and is inserted into soil for fertilization work, and the layered fertilization unit 300 ascends back to the initial position under the action of the return mechanism.
As a preferred embodiment of the present invention, as shown in fig. 5-6, the return mechanism includes a guide bar 306, the guide bar 306 being fixedly mounted to the mounting block 304, and the guide bar 306 extending downward in a vertical direction. The guide rod 306 of the embodiment is slidably connected with the stand 100, a return spring 307 is sleeved outside the guide rod 306, and two ends of the return spring 307 are respectively connected with the corresponding surfaces of the mounting seat 304 and the stand 100. The radial cross section of the guide bar 306 of this embodiment is circular or regular polygon. The pressing portion 2031 and the return portion 2032 of the pressing wheel 203 of this embodiment alternately press against the surface of the roller 305 along with the rotation of the driving rod 202, so that the layered fertilization unit 300 moves up and down, the return spring 307 is gradually compressed to store energy when the layered fertilization unit 300 moves down, and the return spring 307 gradually returns when the layered fertilization unit 300 moves up, and the layered fertilization unit 300 returns to the initial position.
As a preferred embodiment of the present invention, as shown in fig. 2, the driving mechanism includes a driving motor 200, the driving motor 200 is mounted on the frame 100, a driving wheel 201 is coaxially mounted on an output shaft of the driving motor 200, each driving rod 202 is respectively mounted with a driven wheel 204, and the driving wheel 201 and each driven wheel 204 are in transmission connection through a transmission belt 205. In this embodiment, the driving wheel 201 rotates by driving the motor 200, and the driven wheel 204 drives the driving rod 202 to rotate under the transmission action of the transmission belt 205, so as to realize the up-and-down fluctuation of the layered fertilization unit 300.
As a preferred embodiment of the present invention, as shown in fig. 6 to 7, the layered fertilization unit 300 includes a distribution box 302 and a plurality of fertilization bars 301, wherein each fertilization bar 301 includes fertilization bars 3011, the fertilization bars 3011 are different in length, and the upper ends of the fertilization bars 3011 are connected to the bottom 3021 of the distribution box. The distribution box 302 of the present embodiment is movably connected to the frame 100, and the distribution box 302 can slide in the vertical direction under the drive of the top pressing wheel 203. The distribution box 302 is communicated with the fertilizer box through a hose 303, the fertilizer box is mounted on the frame 100 or the agricultural machine, and the bottom of the fertilizer box of the embodiment is higher than the top of the distribution box 302, so that the fertilizer in the fertilizer box can smoothly enter the distribution box 302. In this embodiment, the lengths of the fertilizer insert rods 3011 connected to the distribution box 302 are different, so that the fertilizer insert rods 3011 are inserted into different depths of soil, and thus, the fertilizer application operation under different depths is realized. In this embodiment, a plurality of fertilizer holes 3014 are formed in the lower portion of the fertilizer insert rod 3011, and a fertilizer sleeve 3012 may be screwed on the lower portion of the fertilizer insert rod 3011, where the fertilizer holes 3014 are formed in the fertilizer sleeve 3012. The fertilizer insert bar 3011 of this embodiment has a fertilizer application passage 321 in communication with the distribution box 302, and the fertilizer holes 3014 are in communication with the fertilizer application passage 321. In order to adapt to the non-vertical insertion of soil in different hardness areas and not to influence the fertilization effect in the advancing process of the agricultural machinery, the fertilization insert rod 3011 can have a certain movable angle with the distribution box 302, specifically, as shown in fig. 7, a bowl-shaped groove 3023 is formed in the bottom 3021 of the distribution box, a spherical joint 308 is assembled in the bowl-shaped groove 3023, and a flange is formed at one end of the spherical joint 308 away from the distribution box 302, and the spherical joint 308 is detachably connected with the fertilization insert rod 3011 through the flange. In this embodiment, a through hole 3022 is formed in the bottom 3021 of the distribution box, a flare 310 is formed at the upper end of the ball joint 308, a large diameter end of the flare 310 is connected to the through hole 3022, and a small diameter end of the flare 310 is connected to the fertilization channel 321 via the through channel 309. In this embodiment, when the ball joint 308 rotates to a limit value in the bowl-shaped groove 3023, the edge of the flange abuts against the bottom 3021 of the distribution box, and the through hole 3022, the bell mouth 310, the through passage 309, the fertilizer application passage 321 and the fertilizer application hole 3014 are mutually communicated, so that after the fertilizer application plunger 3011 is deflected by a certain angle, fertilizer can still be applied. In this embodiment, a hard spring is sleeved on the exposed part of the ball joint 308, and two ends of the hard spring are respectively fixed with the flange and the bottom 3021 of the distribution box, and the hard spring is used for returning after the fertilization insert rod 3011 is deflected.
In order to facilitate the insertion of the fertilizer insert 3011 into soil and at the same time avoid the blockage of the fertilizer holes 3014 during the insertion of the fertilizer insert 3011 into soil, as shown in fig. 7, a hollow cone-shaped plug 3013 is movably connected to the lower end of the fertilizer insert 3011, a movable sleeve 3015 is configured at the large diameter end of the cone-shaped plug 3013, and the movable sleeve 3015 is sleeved at the lower end of the fertilizer insert 3011. In order to implement the fertilization after the fertilization rod 3011 is inserted into the soil and the fertilization operation is stopped after the fertilization rod 3011 is separated from the soil, a conical spring 312 is mounted in the conical plug 3013, the lower end of the conical spring 312 is fixedly connected with the bottom wall of the inner cavity of the conical plug 3013, and the upper end of the conical spring 312 is fixed on the end face of the lower end of the fertilization rod 3011. The cone-shaped plug 3013 of this embodiment is coaxially connected with a rod body 311, the upper end of the rod body 311 extends into the fertilizer inserting rod 3011 from the lower end of the fertilizer inserting rod 3011, and an opening and closing component is configured between the rod body 311 and the fertilizer applying channel 321 of the fertilizer inserting rod 3011 for realizing the opening and closing of the fertilizer applying channel 321.
As a preferred embodiment of the invention, the opening and closing assembly comprises two embodiments. 7-8, the opening and closing assembly comprises a flange 314, wherein the flange 314 is constructed on the peripheral wall of the fertilization channel 321 and extends inwards along the radial direction of the fertilization inserting rod 3011, a fertilizer passing opening 315 is formed in the inner ring of the flange 314, the upper end of the rod body 311 extends out of the fertilizer passing opening 315, and a starting block 313 is arranged at the upper end of the rod body 311, when the cone-shaped plug 3013 gradually extends into soil, the cone-shaped plug 3013 is pressed to move upwards, so that the rod body 311 synchronously moves upwards, and the opening and closing block 313 which is positioned for closing the fertilizer passing opening 315 gradually moves upwards, so that the fertilizer passing opening 315 is opened, and fertilizer application is realized; when the cone-shaped plug 3013 is separated from the soil, the cone-shaped plug 3013 gradually returns under the return action of the cone-shaped spring 312, so that the opening and closing plug 313 closes the fertilizer passing opening 315. 9-11, the opening and closing assembly comprises a lower fertilizer passing plate 316 and an upper fertilizer passing plate 319, wherein the lower fertilizer passing plate 316 is constructed in a fertilizer application channel 321, lower openings 317 are uniformly formed on the lower fertilizer passing plate 316 along the circumferential direction of the lower fertilizer passing plate 316, and a hole channel 318 for the rod body 311 to pass through is formed in the center of the lower fertilizer passing plate 316; the upper fertilizer passing plate 319 is installed at the upper end of the rod body 311, and upper notches 320 are uniformly formed on the upper fertilizer passing plate 319 along the circumferential direction thereof, and the upper notches 320 and the lower notches 317 are staggered from each other. Thus, when the cone-shaped plug 3013 gradually stretches into the soil, the cone-shaped plug 3013 is pressed to move upwards, so that the rod body 311 moves upwards synchronously, and then the upper fertilizer passing plate 319 which is positioned for closing the lower notch 317 moves upwards gradually, so that a certain distance exists between the lower notch 317 and the upper notch 320, and fertilizer can enter the fertilizer application hole 3014 after passing through the upper notch 320 and the lower notch 317; when the cone-shaped plug 3013 is separated from the soil, under the return action of the cone-shaped spring 312, the cone-shaped plug 3013 gradually returns to enable the upper fertilizer passing plate 319 to be gradually attached to the lower fertilizer passing plate 316, at this time, the lower notch 317 of the lower fertilizer passing plate 316 is closed by the upper fertilizer passing plate 319, and the upper notch 320 of the upper fertilizer passing plate 319 is closed by the lower fertilizer passing plate 316.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. The utility model provides an accurate layering of winter wheat nitrogen phosphorus fertilizer material is applied equipment, includes the frame of installing on the agricultural machinery fuselage, its characterized in that: the machine frame is provided with a plurality of rows of layered fertilization units, each layered fertilization unit in each row of layered fertilization units is arranged at intervals along the advancing direction of the agricultural machine, a fluctuation transmission mechanism is constructed between the machine frame and each row of layered fertilization units, the fluctuation transmission mechanism acts through a driving mechanism to form a fluctuation transmission mechanism to drive each layered fertilization unit in each row of layered fertilization units to move up and down, each layered fertilization unit comprises a distribution box which is movably connected with the machine frame and can vertically slide, the distribution box is communicated with a fertilizer box arranged on the machine frame through a hose, the bottom of the fertilizer box is higher than the top of the distribution box, a plurality of fertilizing inserting rods with different lengths are connected at the bottom of the distribution box, each fertilizing inserting rod is provided with a fertilizing channel which is mutually communicated with the distribution box, and a plurality of fertilizing holes which are communicated with the fertilizing channel are formed in the lower part of the fertilizing inserting rods; a bowl-shaped groove is formed in the bottom of the distribution box, a spherical joint is assembled in the bowl-shaped groove, a flange is formed at one end, far away from the distribution box, of the spherical joint, the spherical joint is detachably connected with a fertilization inserting rod through the flange, a through hole is formed in the bottom of the distribution box, a bell mouth is formed in the upper end of the spherical joint, the large-diameter end of the bell mouth is communicated with the through hole, and the small-diameter end of the bell mouth is communicated with the fertilization channel through a communication channel; when the spherical joint rotates to a limit value in the bowl-shaped groove, the edge of the flange is abutted against the bottom of the distribution box, the through hole, the horn mouth, the through passage, the fertilization passage and the fertilization hole are communicated with each other, a hard spring is sleeved on the exposed part of the spherical joint, and two ends of the hard spring are respectively fixed with the flange and the bottom of the distribution box; the lower end of the fertilization inserting rod is movably connected with a hollow cone-shaped plug, the large diameter end of the cone-shaped plug is provided with a movable sleeve, and the movable sleeve is sleeved at the lower end of the fertilization inserting rod.
2. The precise layering application device for nitrogen-phosphorus fertilizer of winter wheat according to claim 1, wherein: the undulating transmission mechanism comprises driving rods which are arranged above each row of layered fertilization units one by one, each driving rod is rotatably connected to the frame and extends along the arrangement direction of the layered fertilization units, a top pressing wheel is respectively arranged on each driving rod and at the position corresponding to each layered fertilization unit, each top pressing wheel is provided with a top pressing part and a return part, and the top pressing parts and the return parts are in smooth transition; the number of the jacking parts is the same as that of the return parts, and at least one jacking part is arranged, and the jacking parts and the return parts are alternately arranged along the axial direction of the driving rod; the upper end of the layered fertilization unit is provided with a mounting seat, the mounting seat is rotationally connected with a roller, the roller is positioned below the top pressing wheel, the corresponding peripheral surfaces of the roller and the top pressing wheel are mutually abutted, and a return mechanism is arranged between the layered fertilization unit and the frame.
3. The precise layering application device for nitrogen-phosphorus fertilizer of winter wheat according to claim 2, wherein: the return mechanism comprises a guide rod fixedly mounted on the mounting seat and extending downwards along the vertical direction, the guide rod is in sliding connection with the frame, a return spring is sleeved outside the guide rod, two ends of the return spring are respectively connected with surfaces corresponding to the mounting seat and the frame, and the radial section of the guide rod is circular or regular polygon.
4. The precise layering application device for nitrogen-phosphorus fertilizer of winter wheat according to claim 2, wherein: the driving mechanism comprises a driving motor arranged on the frame, a driving wheel is coaxially arranged on an output shaft of the driving motor, driven wheels are respectively arranged on each driving rod, and the driving wheel and each driven wheel are in transmission connection through a transmission belt.
5. The precise layering application device for nitrogen-phosphorus fertilizer of winter wheat according to claim 1, wherein: the cone-shaped plug is internally provided with a cone-shaped spring, the lower end of the cone-shaped spring is fixedly connected with the bottom wall of the inner cavity of the cone-shaped plug, the upper end of the cone-shaped spring is fixed on the end face of the lower end of the fertilization inserting rod, the cone-shaped plug is coaxially connected with a rod body extending into the cone-shaped plug from the lower end of the fertilization inserting rod, and an opening and closing assembly is constructed between the rod body and a fertilization channel of the fertilization inserting rod.
6. The precise layering application device for the nitrogen-phosphorus fertilizer of winter wheat, as claimed in claim 5, wherein: the opening and closing assembly comprises a flange which is constructed on the peripheral wall of the fertilization channel and extends inwards along the radial direction of the fertilization inserting rod, a fertilizer passing opening is formed in the inner ring of the flange, the upper end of the rod body extends out of the fertilizer passing opening, and a starting block is arranged at the upper end of the rod body.
7. The precise layering application device for the nitrogen-phosphorus fertilizer of winter wheat, as claimed in claim 6, wherein: the opening and closing assembly comprises a lower fertilizer passing plate constructed in a fertilizer application channel, lower openings are uniformly formed in the lower fertilizer passing plate along the circumferential direction of the lower fertilizer passing plate, a hole channel for a rod body to pass through is formed in the center of the lower fertilizer passing plate, an upper fertilizer passing plate is mounted at the upper end of the rod body, upper openings are uniformly formed in the upper fertilizer passing plate along the circumferential direction of the upper fertilizer passing plate, and the upper openings and the lower openings are staggered.
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| CN202210641525.8A CN114946352B (en) | 2022-06-08 | 2022-06-08 | Accurate layering application equipment of winter wheat nitrogen phosphorus fertilizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5172768A (en) * | 1985-12-23 | 1992-12-22 | Reinhold Straus | Device for loosening soil |
| CN112088622A (en) * | 2020-08-28 | 2020-12-18 | 安徽军松现代农业科技有限公司 | Portable fertilizer injection unit |
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| CN114946352A (en) | 2022-08-30 |
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