CN116058122A - Multipurpose drill and distributor with lotus leaf pulse structure guide slot - Google Patents

Multipurpose drill and distributor with lotus leaf pulse structure guide slot Download PDF

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Publication number
CN116058122A
CN116058122A CN202310259199.9A CN202310259199A CN116058122A CN 116058122 A CN116058122 A CN 116058122A CN 202310259199 A CN202310259199 A CN 202310259199A CN 116058122 A CN116058122 A CN 116058122A
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China
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seed
pipe
fertilizer
shaped
lotus leaf
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Chinese (zh)
Inventor
武家杰
李兆东
段德龙
任定林
王天琪
宪文静
章艳芳
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Anhui Agricultural University AHAU
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Anhui Agricultural University AHAU
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Priority to CN202310259199.9A priority Critical patent/CN116058122A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B49/00—Combined machines
    • A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
    • A01B49/06—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
    • A01B49/065—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising the soil-working tools being actively driven
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
    • A01B33/02—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs with tools on horizontal shaft transverse to direction of travel
    • A01B33/021—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs with tools on horizontal shaft transverse to direction of travel with rigid tools
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
    • A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
    • A01B33/10—Structural or functional features of the tools ; Theoretical aspects of the cutting action
    • A01B33/103—Structural or functional features of the tools ; Theoretical aspects of the cutting action the rotating shaft being oriented horizontally
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B49/00—Combined machines
    • A01B49/02—Combined machines with two or more soil-working tools of different kind
    • A01B49/022—Combined machines with two or more soil-working tools of different kind at least one tool being actively driven
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
    • A01C5/06—Machines for making or covering drills or furrows for sowing or planting
    • A01C5/062—Devices for making drills or furrows
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
    • A01C5/06—Machines for making or covering drills or furrows for sowing or planting
    • A01C5/066—Devices for covering drills or furrows
    • A01C5/068—Furrow packing devices, e.g. press wheels
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/06—Seeders combined with fertilising apparatus
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/20—Parts of seeders for conducting and depositing seed

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sowing (AREA)
  • Fertilizing (AREA)

Abstract

The invention belongs to the technical field of agricultural machinery, and particularly relates to a multipurpose drill and a distribution device with lotus leaf pulse-shaped structure guide grooves, which comprises a seed separation top cover and a seed separation device main body, wherein a seed inlet pipe is communicated below the seed separation device main body, a seed outlet pipe is arranged at the periphery of the seed separation device main body, and the whole seed separation top cover is of a central conical sinking structure and comprises a step-shaped mounting part, an arc-shaped guide part and a guide cone part; the seed divider main body comprises a vertical connecting pipe, a transition side wall and a horizontal seed dividing pipe, the inner wall of the transition side wall is provided with guide grooves with lotus leaf pulse-shaped structures distributed in a circular array, the bottom ends of the guide grooves are connected with the vertical connecting pipe, and the upper ends of the guide grooves are smoothly connected with the horizontal seed dividing pipe; the guide groove is machined according to the central bus. Compared with the prior art, the invention has the following advantages: by arranging the pressurizing pipe, a stable precondition is provided for uniform distribution of the distribution device; optimizing a seed separation pipeline, and effectively performing secondary pressure stabilizing distribution on seeds; improves the seeding uniformity of each row, and is convenient for agricultural scientific researchers to carry out various field experiments.

Description

Multipurpose drill and distributor with lotus leaf pulse structure guide slot
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a multipurpose drill and a distribution device with lotus leaf pulse-shaped structure guide grooves.
Background
The core of the seeder is a seed metering device, the seed metering device is an important factor for determining the working quality and the working performance of the seeder, and in the field test process of new variety cultivation, improved variety breeding, variety comparison, cultivation and the like, agricultural researchers have higher requirements on the uniformity of accurate seeding in order to ensure the accuracy of test results; the pneumatic seed metering device adopts a mode that a seed supply device quantitatively supplies seeds and a distribution device uniformly distributes the seeds in a row, the performance of the distribution device determines the seed metering performance of the pneumatic seed metering device, and patent document with the application number of 2015109573709 discloses an oil and wheat dual-purpose type air collecting and discharging distribution mechanism which comprises a seed conveying pipeline, a distribution device shell, a distribution device cover plate and a distribution seed metering pipe, wherein the distribution device shell comprises an inclined shell wall, a boss, a groove and a vertical shell wall, the vertical shell wall is connected with one end of the distribution seed metering pipe, the groove is machined according to a groove center line, the groove center line is streamline, two ends of the groove center line are an end A (with the diameter of 25 mm) and an end B (with the diameter of 16 mm) respectively, the groove is circumferentially machined along the groove center line, and the diameter of the end A is larger than the diameter of the end B, so that the groove cavity is formed with a large inlet and a small outlet, and the speed of seeds can be accelerated; the lower surface of the distribution and change day is provided with a conical surface, the conical angle alpha of the conical surface is 120 degrees, the cavity forms space constraint on seed flow, the seed flow is converted into radial movement from axial movement under the action of the conical surface, under the combined action of air pressure and space constraint, the seed flow uniformly enters the grooves, is distributed through the distribution seed discharging pipe, and then enters the seed conveying pipe to be connected to the soil working part, so that the subsequent sowing process is completed; the consistency variation coefficient of each row displacement reaches about 4.0, but still needs to be further enhanced; in this document, various rows of seed flows are improved by adjusting the internal structure of the distribution device, so that the air flow loss is reduced, but when the seed flow of gas-solid coupling is transmitted by the seed inlet pipe, the air pressure may be insufficient, the stable transmission of the gas-solid coupling flow cannot be ensured, and the distribution effect of the distribution device is further affected.
The wheat grain planting area in northern China is large, the grain drill is a main product of a seeder, the grain drill is planted into soil according to required row spacing, planting amount and planting depth, and then soil covering and compacting are carried out, and the wheat grain drill is mainly applied to grain seeding: including wheat, millet, sorghum, rape, etc.; the ridger is used for completing soil scraping and ridging, the fertilizer device is used for applying fertilizer into the ditches opened by the fertilizer furrow opener, the film spreading device is used for covering the plastic film on the ridge surface, the film pressing wheel is used for pressing the plastic film, the soil covering disc is used for covering the film edges, the sowing device is used for sowing seeds into the ditches at two sides of the ridge, and the compacting device is used for compacting and preserving soil moisture; wherein the seed metering device of the seeding device is a main component affecting the seeding performance.
Disclosure of Invention
The invention aims to solve the problem that a distribution device of a pneumatic seed metering device of the conventional multipurpose drill influences the consistency of discharge capacity, and provides the multipurpose drill and the distribution device thereof with a lotus leaf pulse-shaped structure guide groove.
The invention is realized by the following technical scheme: the distribution device comprises a seed separation top cover and a seed separation device main body, wherein the lower part of the seed separation device main body is communicated with a seed inlet pipe, the outer periphery of the seed separation device main body horizontally extends out of a seed outlet pipe which is distributed in a circular column, and the whole seed separation top cover is of a central conical sunken structure and comprises a step-type installation part, an arc-shaped flow guide part and a flow guide cone part; the seed divider main body comprises a vertical connecting pipe, a transition side wall and a horizontal seed dividing pipe, the inner wall of the transition side wall is provided with guide grooves with lotus leaf pulse-shaped structures distributed in a circular array, the bottom ends of the guide grooves are connected with the vertical connecting pipe, and the upper ends of the guide grooves are smoothly connected with the horizontal seed dividing pipe; the guide groove is formed by processing a central bus, the central bus is divided into three sections from a horizontal seed dividing pipe to a vertical connecting pipe section, and the three sections are shown as formula (1), wherein the unit is mm:
Figure BDA0004130586820000021
after the seed separating cover body and the seed separating device main body are fixedly installed through fastening screws, a seed separating channel is formed between the guide groove and the bottom of the seed separating top cover, and a seed separating chamber is arranged at the lower part of the seed separating channel; the cone angle alpha of the drainage cone part is 120 degrees, and the equation of the arc-shaped flow guiding part is shown as formula (2), and the unit is mm;
Figure BDA0004130586820000022
Figure BDA0004130586820000023
by matching with the lotus leaf pulse-shaped structure guide groove, the vortex phenomenon of seed flow in the seed separation chamber under the action of an airflow field is effectively improved, the blowing speed of the airflow is improved, the seed stagnation phenomenon is improved, the flow property of seeds is improved, and the seed separation uniformity can be improved through verification.
Specifically, the lower part of the guide groove is an inclined U-shaped wedge surface, the included angle between the U-shaped wedge surface and the vertical surface is 20-25 degrees, the center line of the U-shaped wedge surface meets the equation (4), and the unit is mm:
Figure BDA0004130586820000024
Figure BDA0004130586820000025
specifically, a pressurizing pipe is arranged between the vertical connecting pipe and the seed inlet pipe, the seed inlet pipe is a cylindrical straight pipe, and a mounting plate is arranged on the periphery of the upper part of the seed inlet pipe; the inside of the pressurizing pipe is provided with a longitudinally extending sawtooth corrugated structure, the diameter of a circle corresponding to the wave crest of the sawtooth corrugated structure is 55mm, the diameter of a circle corresponding to the wave trough is 71mm, and the distance between adjacent wave crests is 10mm; through set up sawtooth ripple structure in the booster pipe, when the fluid passes the crest, the crest has certain vortex effect to the fluid, causes the boundary layer separation, weakens thin boundary layer thickness, even make the air current be close to the pipe wall air current velocity reduction in the pipeline, be close to pipeline center air current velocity increase, be favorable to realizing the pressure boost deceleration effect to gas-solid coupling confluence, make air current and seed misce bene, overcome population gravity in the conduction process, improve the transportation stability of seed stream, help follow-up evenly distribute to the seed stream.
A multipurpose drill seeder comprising a distribution device with a lotus leaf pulse-shaped structure guide groove comprises a pneumatic seed metering device, a rotary tillage ridging device, a seed ditch opening device, a fertilizer device and a pressing device;
the pneumatic seed metering device comprises a fan, a seed box, a seed supply device, a venturi tube, a gas transmission hose, a plurality of rows of seed separators and a seed transmission tube which are arranged on the frame; the multi-row seed divider is a distributing device with a lotus leaf pulse-shaped structure guide groove;
the rotary tillage ridging device comprises a rotary tillage cutter shaft device, a middle ditching plow, a side ditching plow and a shaping device; the rotary blade shaft device comprises rotary blade rotating shafts which are symmetrically arranged left and right, rotary blade supports are uniformly distributed on the rotary blade rotating shafts, and rotary blades are uniformly arranged on the rotary blade supports; the middle ditching plow is arranged at the bottom of a driving gear box fixed on the frame; the shaping device is symmetrically arranged behind the rotary tillage cutter shaft device;
the seed-metering device comprises an arrow shovel type furrow opener, wherein the arrow shovel type furrow opener is fixed on the frame, and a seed guide pipe is connected above the arrow shovel type furrow opener;
the fertilizer device comprises a fertilizer box, a fertilizer device and a fertilizer guiding groove, wherein a plurality of fertilizer discharging openings are formed in the bottom of the fertilizer box at intervals, the fertilizer discharging openings are communicated with the fertilizer device, and an outlet at the lower end of the fertilizer device is connected with the fertilizer guiding groove;
the compacting device comprises a connecting plate, a compacting roller shaft, a compacting roller and a scraping plate, wherein the compacting roller shaft is provided with the compacting roller through a revolute pair, two ends of the compacting roller shaft are connected between the connecting plates on two sides through bearings, and the rear end of the connecting plate is connected with the frame through a fastening bolt; the scraping plate is fixed above the pressing roller through a connecting plate; the compacting device is positioned behind the seed ditching device.
Compared with the prior art, the invention has the following advantages:
(1) Through additionally arranging a pressurizing pipe behind the seed inlet pipe and arranging a sawtooth corrugated structure in the pressurizing pipe, the air flow is continuously compressed and stretched in the pipeline, the pressurizing and decelerating effects on the air-solid coupling flow are realized, the air flow is uniformly mixed, the transportation stability of the seed flow is improved, and a stable precondition is provided for uniform distribution of the distribution device;
(2) The structure of the seed separating top cover and the seed separator main body is further improved on the basis of the existing seed separating pipeline, the seed separating pipeline is further optimized, the vortex phenomenon of seed flow in a seed separating chamber under the action of an air flow field is improved, the air flow loss is reduced, the blowing speed of the air flow is improved, and the secondary pressure stabilizing distribution is effectively carried out on the seeds;
by arranging the lotus leaf pulse-shaped structure guide groove, the seed stagnation phenomenon is effectively improved, the speed distribution uniformity is optimized, the blockage is not easy to occur, the seed mobility is improved, and the smooth discharge of the seeds is ensured; the lotus leaf-shaped seed centralized distribution device improves the seed distribution uniformity and meets the requirements of NY/T1143-2006 technical Specification for quality evaluation of seeders;
(3) The air-assisted seed metering device, the rotary tillage ridging device, the seed and ditch opening device, the fertilizer feeding device and the compacting device of the drill are reasonably arranged, can be applied to grain sowing, can be used for sowing and earthing compacting according to requirements, improve the sowing uniformity of each row through the distribution device, and facilitate various field tests by agricultural scientific researchers.
Drawings
Fig. 1 is a schematic view of the rear side of the drill in accordance with the present invention.
Fig. 2 is a schematic view of the construction of the front side of the drill in accordance with the present invention.
Fig. 3 is a schematic structural view of an air-fed seed metering device.
Fig. 4 is a schematic structural view of the seed divider body.
Fig. 5 is a cross-sectional view of the seed separating cap.
Fig. 6 is a schematic view of the internal structure of the seed divider body.
Fig. 7 is a cross-sectional view of the booster tube.
Fig. 8 is a schematic diagram of the curve structure of the central bus bar.
The novel high-efficiency high-speed mechanical seed drill comprises a 1-pressing roller, a 2-scraping plate, a 3-seed guiding pipe, a 4-arrow shovel type furrow opener, a 5-pressing roller shaft, a 6-shaping device, a 7-connecting plate, an 8-rotary blade rotating shaft, a 9-venturi tube, a 10-fertilization box, an 11-seed box, a 12-seed conveying pipe, 13-multi-row seed separators, 131-seed separating caps, 1311-step-shaped mounting parts, 1312-arc-shaped guide parts, 1313-guide cone parts, 132-fastening screws, 133-seed separator bodies, 1331-seed separating passages, 1332-guide grooves, 1333-vertical connecting pipes, 134-seed outlet pipes, 135-pressurizing pipes, 136-mounting plates, 137-seed inlet pipes, 14-fans, 15-seed supplying devices, 16-air conveying hoses, 17-racks, 18-rotary blade shaft devices, 19-rotary blades, 20-middle furrow plows, 21-driving gear boxes, 22-rotary blade supports, 23-guide grooves and 24-fertilizer devices.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings of embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1-8, a multipurpose drill comprising a distribution device having a lotus leaf pulse structure guide slot, comprising a pneumatic seed metering device, a rotary tillage ridging device, a seed furrow opening device, a fertilizer device, and a compacting device;
the pneumatic seed metering device comprises a fan 14, a seed box 11, a seed supply device 15, a venturi tube 9, a gas transmission hose 16, a plurality of rows of seed separators 13 and a seed transmission tube 12 which are arranged on a frame 17; the multi-row seed separator 13 is a distributing device with a lotus leaf pulse-shaped structure guide groove; the distribution device comprises a seed-separating top cover 131 and a seed-separating device main body 133, wherein a seed inlet pipe 137 is communicated below the seed-separating device main body 133, and a seed outlet pipe 134 distributed in a circular row horizontally extends out of the periphery of the seed-separating device main body 133; as shown in fig. 4, a booster tube 135 is arranged between the vertical connecting tube 1333 and the seed inlet tube 137, the seed inlet tube 137 is a cylindrical straight tube, and an annular mounting plate 136 is arranged on the periphery of the upper part of the seed inlet tube 137, so that the seed inlet tube 137 is conveniently fixed on the frame 17; as shown in fig. 7, the pressurizing pipe 135 has a longitudinally extending saw-tooth corrugated structure, wherein the diameter of a circle corresponding to a peak of the saw-tooth corrugated structure is 55mm, the diameter of a circle corresponding to a trough is 71mm, and the distance between adjacent peaks is 10mm;
the seed separating top cover 131 is a central cone-shaped sinking structure and comprises a step-shaped mounting part 1311, an arc-shaped flow guiding part 1312 and a flow guiding cone part 1313; the seed divider main body 133 comprises a vertical connecting pipe 1333, a transition side wall and a horizontal seed dividing pipe, wherein the inner wall of the transition side wall is provided with guide grooves 1332 in a circular row type lotus leaf pulse-shaped structure, the bottom ends of the guide grooves 1332 are connected with the vertical connecting pipe 1333, and the upper ends of the guide grooves 1332 are smoothly connected with the horizontal seed dividing pipe; the guide slot 1332 is obtained by processing a central bus, and as shown in fig. 8, the central bus is divided into three sections a, b and c from a horizontal seed separation pipe to a vertical connecting pipe section, and the three sections are shown as formula (1), wherein the unit is mm:
Figure BDA0004130586820000051
after the seed separating cover body 131 and the seed separating device main body 133 are fixedly installed through the fastening screw 132, a seed separating channel 1331 is formed at the bottom of the guide groove 1332 and the seed separating top cover 131, and a seed separating chamber is arranged at the lower part of the seed separating channel; the taper angle α of the drainage cone 1313 is 120 °, and the equation of the arc-shaped flow guide 1312 is
Figure BDA0004130586820000052
The combination of the lotus leaf pulse-shaped structure guide groove 1332 effectively improves the vortex phenomenon of the seed flow in the seed separation chamber under the action of the airflow field, improves the blowing speed of the airflow,the seed stagnation phenomenon is improved, the flow property of seeds is improved, and the seed separation uniformity can be improved through verification; the lower part of the guide groove is provided with an inclined U-shaped wedge surface, the included angle between the U-shaped wedge surface and the vertical surface is 20-25 degrees, the central line of the U-shaped wedge surface meets the equation (2), and the unit is mm: />
Figure BDA0004130586820000053
Figure BDA0004130586820000054
The rotary tillage ridging device comprises a rotary tillage cutter shaft device 18, a driving gear box 21, a middle ditching plow 20, side ditching plows 8 and a shaping device 6; the rotary blade shaft device 18 comprises rotary blade rotating shafts 8 which are symmetrically arranged left and right, rotary blade supports 22 are uniformly distributed on the rotary blade rotating shafts 8, and rotary blades 19 are uniformly arranged on the rotary blade supports 22; the middle ditching plow 20 is arranged at the bottom of a driving gear box fixed on the frame; the side furrow plough is arranged at the rear of the outer side of the rotary tillage cutter shaft 8; the shaping device 6 is symmetrically arranged behind the rotary tillage cutter shaft 8;
the seed-metering device comprises an arrow shovel type furrow opener 4, wherein the arrow shovel type furrow opener 4 is fixed on a frame 17, and a seed guide tube 3 is connected above the arrow shovel type furrow opener 4;
the fertilizer device comprises a fertilizer box 10, a fertilizer device 24 and a fertilizer guiding groove 23, wherein a plurality of fertilizer discharging openings are formed in the bottom of the fertilizer box 10 at intervals, the fertilizer discharging openings are communicated with the fertilizer device 24, and an outlet at the lower end of the fertilizer device 24 is connected with the fertilizer guiding groove 23;
the compacting device comprises a connecting plate 7, a compacting roller shaft 5, compacting rollers 1 and a soil scraping plate 2, wherein the compacting roller shaft 5 is provided with the compacting rollers 1 through a revolute pair, two ends of the compacting roller shaft 5 are connected between the connecting plates 7 on two sides through bearings, and the rear ends of the connecting plates 7 are connected with a frame 17 through fastening bolts; the scraping plate 2 is fixed above the pressing roller 1 through a connecting plate; the compacting device is positioned behind the seed ditching device.
The multipurpose drill seeder is suitable for seeding different types of small seed seeds, such as wheat, rape, rice, vegetables and the like, and in order to verify the seeding performance, a control group is set as an inverted cone frustum-shaped seed centralized distribution device disclosed in a patent document with the application number of 202011216771.6, and the following comparative tests are carried out:
(1) The Xu Ke first wheat seeds are taken as test objects, the seed sowing performance of the inverted cone frustum-shaped seed centralized distribution device and the lotus leaf-shaped seed centralized distribution device under the condition of different seed supply amounts when the wind speed is 22m/s is fixed is compared, and the results of the consistency coefficient of variation of the displacement of each row are counted as shown in table 1;
TABLE 1
Figure BDA0004130586820000061
(2) The seed sowing performance of the Chinese oil hybrid 62 rape seeds serving as a test object under the condition of different seed supply amounts when the wind speed is 20m/s is fixed by comparing the inverted cone frustum-shaped seed concentrated distribution device with the lotus leaf-shaped seed concentrated distribution device in the invention, and the results of calculating the consistent variation coefficient of each row of displacement are shown in table 2;
TABLE 2
Figure BDA0004130586820000062
As can be seen from tables 1 and 2, under the conditions of the same wind pressure and different seed supply amounts, the lotus leaf-shaped seed centralized distribution device provided by the invention has obviously reduced variation coefficient of consistency of each row displacement compared with the inverted cone-shaped seed centralized distribution device; the lotus leaf-shaped seed centralized distribution device improves the seed distribution uniformity and meets the requirements of NY/T1143-2006 technical Specification for quality evaluation of seeders.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (8)

1. The distributing device with lotus leaf pulse-shaped structure guide groove comprises a seed separating top cover and a seed separating device main body, wherein the lower part of the seed separating device main body is communicated with a seed inlet pipe, the outer periphery of the seed separating device main body horizontally extends out of a seed outlet pipe distributed in a circular column, and the distributing device is characterized in that the whole seed separating top cover is of a central conical sinking structure and comprises a step-shaped mounting part, an arc-shaped flow guiding part and a flow guiding cone part; the seed divider main body comprises a vertical connecting pipe, a transition side wall and a horizontal seed dividing pipe, the inner wall of the transition side wall is provided with guide grooves with lotus leaf pulse-shaped structures distributed in a circular array, the bottom ends of the guide grooves are connected with the vertical connecting pipe, and the upper ends of the guide grooves are smoothly connected with the horizontal seed dividing pipe; the guide groove is formed by processing a central bus, the central bus is divided into three sections from a horizontal seed dividing pipe to a vertical connecting pipe section, and the three sections are shown as formula (1), wherein the unit is mm:
Figure FDA0004130586810000011
2. the distribution device with lotus leaf pulse structure guide groove according to claim 1, wherein the cone angle α of the drainage cone portion is 120 °, the arc-shaped guide portion is a section of arc, and the arc equation is as formula (2), and the unit is mm:
Figure FDA0004130586810000012
a dispensing device with lotus leaf pulse structure guide slot as claimed in claim 1, characterized in that the lower part of the guide slot is an inclined U-shaped wedge surface, the included angle between the U-shaped wedge surface and the vertical surface is 20 ° -25 °, the center line of the U-shaped wedge surface satisfies equation (3), the unit is mm:
Figure FDA0004130586810000013
Figure FDA0004130586810000014
3. the distribution device with the lotus leaf vein structure guide groove as claimed in claim 1, wherein a pressurizing pipe is arranged between the vertical connecting pipe and the seed inlet pipe, the seed inlet pipe is a cylindrical straight pipe, and a mounting plate is arranged at the periphery of the upper part of the seed inlet pipe; the inside of the supercharging pipe is of a longitudinally extending sawtooth corrugated structure, the diameter of a circle corresponding to the wave crest of the sawtooth corrugated structure is 55mm, the diameter of a circle corresponding to the wave trough is 71mm, and the distance between adjacent wave crests is 10mm.
4. A multipurpose drill comprising a distribution device having a lotus leaf pulse structure guide slot as claimed in any one of claims 1 to 4, comprising an air-fed seed metering device, a rotary tillage ridging device, a seed furrow opening device, a fertilizer device, and a compacting device;
the pneumatic seed metering device comprises a fan, a seed box, a seed supply device, a venturi tube, a gas transmission hose, a plurality of rows of seed separators and a seed transmission tube which are arranged on the frame; the multi-row seed divider is a distributing device with a lotus leaf pulse-shaped structure guide groove.
5. The multipurpose drill of claim 5, wherein the rotary tillage ridging device comprises a rotary tillage cutter shaft device, a middle furrow plow, a drive gearbox, a side furrow plow, and a shaping device; the rotary blade shaft device comprises rotary blade rotating shafts which are symmetrically arranged left and right, rotary blade supports are uniformly distributed on the rotary blade rotating shafts, and rotary blades are uniformly arranged on the rotary blade supports; the middle ditching plow is arranged at the bottom of a driving gear box fixed on the frame; the shaping device is symmetrically arranged behind the rotary tillage cutter shaft device.
6. The multi-purpose drill of claim 5, wherein the seed-metering device comprises an arrow shovel type furrow opener, the arrow shovel type furrow opener is fixed on the frame, and a seed guide tube is connected above the arrow shovel type furrow opener.
7. The multipurpose drill of claim 5, wherein the fertilizer device comprises a fertilizer box, a fertilizer device and a fertilizer guiding groove, a plurality of fertilizer discharging openings are arranged at intervals at the bottom of the fertilizer box, the fertilizer discharging openings are communicated with the fertilizer device, and an outlet at the lower end of the fertilizer device is connected with the fertilizer guiding groove.
8. The multipurpose drill according to claim 5, wherein the compacting device comprises a connecting plate, a compacting roller shaft, a compacting roller and a scraping plate, the compacting roller shaft is provided with the compacting roller through a revolute pair, two ends of the compacting roller shaft are connected between the connecting plates at two sides through bearings, and the rear ends of the connecting plates are connected with the frame through fastening bolts; the scraping plate is fixed above the pressing roller through a connecting plate; the compacting device is positioned behind the seed ditching device.
CN202310259199.9A 2023-03-17 2023-03-17 Multipurpose drill and distributor with lotus leaf pulse structure guide slot Pending CN116058122A (en)

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CN202310259199.9A CN116058122A (en) 2023-03-17 2023-03-17 Multipurpose drill and distributor with lotus leaf pulse structure guide slot

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117546643A (en) * 2024-01-11 2024-02-13 内蒙古大学 Mining area soil plant microorganism improvement fertilization device and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117546643A (en) * 2024-01-11 2024-02-13 内蒙古大学 Mining area soil plant microorganism improvement fertilization device and method
CN117546643B (en) * 2024-01-11 2024-03-19 内蒙古大学 Mining area soil plant microorganism improvement fertilization device and method

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