CN102106211A - Precise seeds sowing device for growing seedlings of aperture disk - Google Patents
Precise seeds sowing device for growing seedlings of aperture disk Download PDFInfo
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- CN102106211A CN102106211A CN2011100034184A CN201110003418A CN102106211A CN 102106211 A CN102106211 A CN 102106211A CN 2011100034184 A CN2011100034184 A CN 2011100034184A CN 201110003418 A CN201110003418 A CN 201110003418A CN 102106211 A CN102106211 A CN 102106211A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/04—Single-grain seeders with or without suction devices
- A01C7/042—Single-grain seeders with or without suction devices using pneumatic means
- A01C7/044—Pneumatic seed wheels
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/08—Devices for filling-up flower-pots or pots for seedlings; Devices for setting plants or seeds in pots
- A01G9/085—Devices for setting seeds in pots
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Abstract
The invention discloses a precise seeds sowing device for growing seedlings of an aperture disk, which comprises a seeds box, an outlet aperture adjuster, a curtain flow stabilizing plate, a seeds sowing bracket, a pneumatic distribution system and a pneumatic adjustment system; and the outlet aperture adjuster is used for adjusting the size of an outlet of the seeds box, and the seeds are distributed by means of single seed, are orderly arranged and are basically even in density under the action of the curtain flow stabilizing plate after the seeds are flowed out. The pneumatic adjustment system comprises an air compressor and an air pressure adjusting loop connected with the air compressor, wherein a pneumatic distribution central shaft and a rotary drum are divided into a negative pressure cavity and a positive pressure cavity by a seal clapboard: the positive pressure cavity is directly communicated with the atmosphere, the seeds are discharged by means of pressure release when the rotary drum is rotated to the positive pressure cavity, and the seeds are absorbed when the rotary drum is rotated to the negative pressure cavity, therefore, the seeds charge and the seeds absorption are alternately preformed under the continuous rotation of the rotary drum. The device is reasonable in structure, and is novel and simple in principle, so that the precise seeds-sowing is directly realized under the self gravity of the seeds and the free movement of the seeds, and the requirement for applying an outer force such as the vibration and the like in the other various seedlings-growing modes is overcome.
Description
Technical field
The invention belongs to the agricultural cultivation breeding technique factorial seedling growth precise sowing equipment agricultural mechanical field of growing seedlings, is a kind of point disk seedling growing precision seeder specifically.
Background technology
Precision seed metering device is the core equipment technology of precise sowing equipment, directly the effect of influence sowing.Its popularization will effectively promote the development of precision planter and industrialized agriculture, save a large amount of manpowers, expensive seed consumption, improve and will be engaged in culture technique personnel's working environment and labour intensity, and obtain better economic and social benefit.
The key equipment of realizing the precise sowing technology is a precision planter, and the core component of precision planter is a precision seeder.Seed is in staticly under the normality, can not directly carry out precise sowing, must make seed produce required sowing state through the external force effect of precision seed metering device and realize precise sowing, and this process is called seeding.Promptly under the effect of seeding unit, make seed be in the regularization motion state and realize simple grain or few grain (as 2 ~ 3) arrangement.Be divided into two big classes by the working method seeding unit: mechanical type seeding unit, pneumatic type seeding unit.The design feature of all kinds of seeding units is different and different with its basic principle, the characteristics of motion, control discharge capacity mode and the configuration on carrier thereof.
The development of external precision seeder starts from the forties in 20th century, technical merit is very high, and as states such as the U.S., Italy, France, Germany, Canada, Australia, sower is various informative, new construction, new principle, new technology, new material constantly occur, and manufacturing process is also meticulousr.Begin the research of precise sowing seeding unit the domestic seventies in 20th century, obtained considerable progress.
The mechanical precise seeding unit utilizes the type hole of seeding unit that seed is separated from population according to seed grain type and size, fills kind, plants and unload clearly link such as kind and finish by seed deadweight or mechanical device.Mechanical type seeding unit form is varied, and structure is multifarious.As notch cuttype inner hole formula seeding unit, filling seed inside vertical plate precision metering, a commentaries on classics spoon formula seeding unit, grinder-vein disk feed, horizontal circle disc type and endless belt formula seeding unit or the like.Have simple in structure, low cost and other advantages, obtained extensive use aborning, its shortcoming is strict to seed sizes, and operating speed is lower, is usually used on the middle-size and small-size sower.
The Pneumatic precision seeding unit produces pull of vacuum or air pressure by blower fan usually, and suction or pressure make seed be attached on the type hole by grain (simple grain or few grain), fill and plant or plant link clearly and finish by strength.Because of the air-flow mode of action and function different are divided into some types.Utilize the negative pressure seeding mode that the seed plate both sides form on the seeding unit to be called air-suction seeding unit.Utilize the positive differential pressure seeding of seeding elements on either side then to become the vapour-pressure type seeding unit.
Factorial seedling growth mainly is a point disk seedling growing, and the suction nozzle formula seeding units that adopt on the point disk seedling growing production line as the various caves dish precision seeding production line of manufacturer production such as U.S. Hamilton, Blackmore company and the European Community more.Being used for manual equipment has the sucked type seeding unit, and there are U.S. E-companies such as Z Seeder Co. in manufacturer.In addition, the FD6300MK II type sower of U.S.'s liquid sowing company production is a kind of sower that can sow the presprouting seed; The magnetic force sower that Japan produces can be used for the sowing of root vegetables seed.4LRZ-10000 type flow-type container nursery device the dress that the Guangxi material is developed is broadcast production line, and seeding apparatus adopts air-sucking type cylinder type seeding unit, makes negative pressure source with vavuum pump.This device can be used for Precision Seeding pine tree seed and pill pelleting seed, lacks to broadcast rate and be lower than 5%, but productivity ratio low (per hour broadcasting 1000 caves).Beijing Agricultural Engineering Univ. has developed type hole fluted disc rotary type point disk seedling growing precision sower (2XB-300); this device sowing qualification rate reaches more than 96%; net productivity is that per minute is broadcast 6 dishes, is applicable to and broadcasts medium sized pill pelleting seed that this technology is now applied.Start to walk a little earlier than the continent aspect vegetable plug seedling in Taiwan, Chen Shiming etc. have developed " oscillatory type multipurpose vacuum planters ", principle is evacuated sowing rotary drum inside for utilizing vacuum equipment, seed is attracted on the suction hole of cylinder surface, employing strength mode is planted clearly and is charged seed, and changes kind of the state that fills of kind of subgroup by vibrating device.
The Pneumatic precision seeding apparatus makes full use of that the strength performance has injuring-free seed, adaptability is strong, versatility good and seed sizes is required characteristics such as not tight, and can improve dropping frequency greatly, adapts to superiority such as high speed seeding operation.The precision seed metering device of at present above several modes exists the problem of the following aspects:
(1) the sucked type seeding unit belongs to gap work, and single-deck efficient is higher, but the complete machine operating efficiency is not high; Hole on the sucker is more, occurs easily leaking planting; Sucker is last in the sucked type dispenser in addition, and seed pan is down, the easy segregation of the seed on the seed pan, and kind of an effect is inhaled in influence, and also the effect of inhaling kind of rate and airflow field is distributed with confidential relation.
(2) suction nozzle formula leakiness kind, the nozzle structure complexity, suction nozzle replacing is difficult for, the manufacturing installation cost is more high, and easy obstruction is planted difficult clearly during seeding.
(3) because a kind of size of suction hole can only be sowed correspondingly, the seed of certain limit inside dimension and proterties, therefore usually need to change and inhale kind of a core component, give design and have all brought influence in manufacturing, installation, use, Financial cost, service life.
At above several problems, project of the present invention is mainly studied and is solved strength drum-type precision seed metering device, has obtained effect preferably.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art; a kind of point disk seedling growing precision seeder rational in infrastructure is provided; this precision seeder is a kind of dispenser that is used for the industrial hole plate seedling growth precise sowing, can finish one in a cave or many and carry out the precise sowing function continuously.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of point disk seedling growing precision seeder comprises seed-box, outlet aperture adjuster, curtain stream stabilier, sowing frame, strength distribution system, strength regulating system; Described seed-box is installed on the sowing frame, and outlet aperture adjuster is installed described seed-box exit, and curtain stream stabilier is positioned at the below of seed-box outlet; The air pressure adjustment loop that described strength regulating system comprises air compressor, links to each other with air compressor, described strength distribution system comprises cylinder, strength distributing center axle, seal diaphragm, cylinder is along the circumferential direction gone up even distribution multirow suction hole, cylinder girth and cave dish equal in length; Strength distributing center axle is located in the cylinder and with the sowing frame fixedlys connected, form cavity between strength distributing center axle and the cylinder, described cavity is divided into malleation chamber and negative pressure cavity by seal diaphragm, the malleation chamber communicates with atmosphere, strength distributing center axle is uniform delegation porous on the direction along the axial length, and negative pressure cavity communicates with the air pressure adjustment loop by the hole on the strength distributing center axle and strength is uniform in each suction hole.
Change or do not change cylinder in order to reduce, the arrangement of the suction hole on the described cylinder is: along the circumferential direction go up the evenly big capable suction hole of distribution multirow at cylinder, have the little capable suction hole of multirow of the same column distance of the descending arrangement in aperture between per two big row suction holes, putting in order of the little capable suction hole between per two big row suction holes is identical; Be coated with rubber strip the outside of cylinder and along circumferencial direction, on rubber strip, have and corresponding hole, big row suction hole position.
Little capable suction hole between per two big row suction holes is arithmetic progression and arranges.
The present invention mainly has the characteristics of following two aspects: 1) precision seeder of the present invention has adopted the novel seeding principle that seed curtain stream combines with strength.The seeding of so-called curtain stream is meant controls the process that suction hole that parameters such as its flowing velocity size, direction and arrangement flow to the strength cylinder with 1～2 seed equivalent size thickness is finished precision metering device when seed flows out after from seed-box.2) need not to change the strength cylinder.Have the satisfied row that satisfy most of seed sizes and character requirement on the strength cylinder apart from agriculture requirement, cylinder circumferentially evenly distributes, the aperture is arithmetic progression suction hole, other suction holes are sealed with rubber flat pattern band after a certain size suction hole is selected.Rubber strip has the hole selection function: with on have the parameter hole identical with the suction hole spread parameter, the size in hole is bigger than largest hole on the strength cylinder.
The seed-distributing operation process mainly is divided into inhales kind and put kind of two processes: 1) inhale kind: the seed of being sowed forms the seed curtain stream of stable, the simple grain thickness with certain speed and direction under the effect of seed-box and curtain stream current stabilization Control Component, seed flow on the cylinder in curtain stream mode, and adsorbed by suction hole under the effect of aspiration power, realize inhaling and plant; 2) put kind: cylinder speed with agriculture requirement under the driving of transmission system is rotated, and eliminates aspiration power when the top position is coiled in kind of cave when cylinder turns to put, and seed freely (strength is planted clearly when needing) falls into the cave dish, realizes putting kind.The unnecessary seed that is not adsorbed falls into the seed collection case, and is recovered in the seed-box by the seed recovery system.
Compared with prior art, advantage of the present invention is: the present invention is rational in infrastructure, principle is novel, simple, utilize the self gravitation of seed and directly realize precise sowing with the freely-movable of seed, has overcome the requirement that other multiple seeding methods apply external force such as vibration.Be applicable to the industrial hole plate seedling growth precise sowing, can finish one in a cave or many and carry out the precise sowing function continuously.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an operation principle schematic diagram of the present invention;
Fig. 3 a is for intermediate roll of the present invention and strength is distributed, the adjusting part structural representation;
Fig. 3 b is the cross section view of Fig. 3 a;
Fig. 4 is dip angle regulating device sketch among the present invention;
Fig. 5 is guiding gutter shape schematic diagram among the present invention;
Fig. 6 a is rubber layout schematic diagram with holes among the present invention;
Fig. 6 b is the left view of Fig. 6 a.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Precision seeder of the present invention has adopted novel precise sowing seeding mode to realize precise sowing, operation principle as shown in Figure 2, structure diagram is as shown in Figure 1.
As shown in Figure 1: a kind of point disk seedling growing precision seeder comprises seed-box 2, seed-box dip angle regulating device, outlet aperture adjuster 3, curtain stream stabilier 4, sowing frame 5, cylinder 6, strength distribution system, seal diaphragm 11, puts kind of a pipe 8, seed collection case, seed recovery system 9; Described seed-box 2 is installed on the sowing frame 5; Outlet aperture adjuster 3 is installed described seed-box 2 exits, and curtain stream stabilier 4 is positioned at the below of seed-box 2 outlets; Cylinder 6 is along the circumferential direction gone up even distribution multirow suction hole, and 10 equal in length are coiled in cylinder 6 girths and cave; Described strength distribution system comprises air compressor, strength distributing center axle 7, the air pressure adjustment loop that links to each other with air compressor, strength distributing center axle 7 is located in the cylinder 6 and with sowing frame 5 fixedlys connected, form cavity between strength distributing center axle 7 and the cylinder 6, described cavity is divided into malleation chamber 12 and negative pressure cavity 13 by seal diaphragm 11, malleation chamber 12 communicates with atmosphere, strength distributing center axle 7 is uniform delegation porous on the direction along the axial length, and negative pressure cavity 13 communicates with the air pressure adjustment loop by the hole on the strength distributing center axle 7 and strength is uniform in axial each suction hole.Anti-arch camber electromagnetic vibrator 1 is installed in the outside of described seed-box 2.The seed-box dip angle regulating device is connected with seed-box 2, and seed-box 2 is installed on the sowing frame 5 by revolute pair.The seed collection case is installed in the cave and coils 10 belows and unnecessary seed is dropped in the collecting box.The seed collection case is connected with seed-box 2 by seed recovery system 9.
The concrete assembling and the operation principle of each parts is as follows among the present invention:
1) act stream seeding principle mainly is that speed, direction control that the seed curtain flows are arranged speed, direction and the seed of grain weight size and seed outflow with realization and controlled, to form stable curtain stream motion to a certain degree, satisfy different sowing seeds and different sowing agriculture requirements.Curtain stream seeding assembly mainly is made up of anti-clogging micro electromagnetic vibrator 1, seed-box 2 and dip angle regulating device thereof, outlet aperture adjuster 3, curtain stream stabilier 4 etc.Seed-box 2 is made by materials such as stainless steel materials, angle steel: the cross section is that trapezoidal, upper and lower opening is the hopper construction of rectangle, adopts revolute pair to be installed on the frame, so that the seed-box dip angle regulating device is regulated the size at seed-box 2 inclination angles; Outlet aperture adjuster 3 is that usefulness door is installed in the steel plate that seed-box 2 exports right sides with hinges, is shaped as rectangle, surface coverage stainless steel materials to guarantee level and smooth and injuring-free seed; One deep-slotted chip breaker (as shown in Figure 4, trough rim can be carved with angle) is arranged at seed-box 2 two ends in addition, and rectangle steel plate two ends are fixed on the deep-slotted chip breaker with the screw-nut pair.The seed-box dip angle regulating device adopts pneumatic spring in the length direction supported at three point, with the proof strength requirement, after adjusting angle, adopts the screw-rod structure locking.Curtain stream stabilier 4 surfaces coat with stainless steel materials and have had the gusset of guide functions to form guiding gutter 14(as shown in Figure 5 through punch forming).Curtain stream stabilier 4 usefulness hinge through pairs are installed in 2 mouthfuls of seed-boxes, curtain stream stabilier 4 is made by corrosion resistant plate: surperficial drawing has the gathering sill of water conservancy diversion to each suction hole position, this gathering sill width is taken as and can holds 2 ~ 3 large-size seeds and pass through, as the replaceable curtain stream stabilier 4 for matching with it of the especially little kind period of the day from 11 p.m. to 1 a.m of sowing.
Before the seeding seeding unit is carried out preliminary debugging: at first regulating outlet aperture adjuster 3 to aperture is 1`2 grain seed equivalent size (by volume density turns to spheroid and calculates its diameter); Then according to the angle of the coefficient of friction size adjustment seed-box 2 of seed and seed-box 2 materials, to regulate speed and the grain weight that seed falls from seed-box 2.Outlet aperture adjuster 3 mainly is to regulate according to the different types of seed size of sow, requirement sowing grain weight etc., and aperture is generally 1 ~ 2 seed equivalent size (the seed equivalence of equal quality is the diameter with the spherical seed of isodensity).The angular adjustment of seed-box dip angle regulating device mainly is to regulate according to the coefficient of friction size of seed and seed-box 2 materials.The coefficient of friction difference, thereby also different speed differences that form curtain stream of the angle of friction that from seed-box 2, flows out of seed then, can change the size of angle of friction after the angle of change seed-box 2, to change and state when flowing out of control grain weight and seed (velocity magnitude and direction, do not beat be advisable with seed).After seed flows out, make seed be that simple grain distributes, arranges in order, density substantially evenly helps absorbing seeding through the further effect of curtain stream stabilier 4.Curtain stream stabilier 4 also can directly seal seed-box 2 outlets temporarily when situations such as the state of emergency, parking, seed is excessive.
Anti-clogging micro electromagnetic vibrator 1 is in case the generation of " arch camber " phenomenon: seed is the bulk solid material, by the bulk solid theory as can be known: because the effect of friction makes the active force that forms extruding between seed in existing between seed, after this active force will make the seed of seed-box 2 bottoms freely flow out from seed-box 2, cavitation appears in the bottom, i.e. " arch camber " is impossible if there is not the effect of external force to want to reduce coefficient of internal friction; On the other hand, how much relevant the outlet aperture size and the required grain weight of seed-box 2 be, aperture is advisable with 1,2 seed sizes, but therefore the different easy blockage phenomenon of the proterties of each seed must install dress anti-clogging micro electromagnetic vibrator 1 in seed-box 2 outsides additional in case the generation of arch camber and clogging.The oscillation intensity of vibrator 1 is regulated according to curtain stream stable case and agriculture requirement, with individual layer seed curtain stream, flow stable, how little grain weight is suitably is advisable.
2) cylinder 6, strength distribution system, seal diaphragm 11, put kind compositions cylinder 6 such as pipe 8 and inhale and put kind of parts, cylinder 6 inhales that to put kind of parts be that realization of the present invention is inhaled and put kind of the core component of realization precision metering device.Cylinder 6 is along the circumferential direction gone up even distribution multirow suction hole, and line number can be decided according to cylinder 6 sizes, when cylinder 6 sizes hour can be decided to be 3 row, can be decided to be 4～6 row when big.It is long that cylinder 6 girths are designed to cave dish 10 so that when realizing precise sowing to target, and control difficulty when reducing design is noted reducing cylinder 6 linear velocities simultaneously, the centrifugal action when avoiding sowing at a high speed and seed is dished out.Hole row apart from corresponding cave dish 10 row apart from identical, hole size with the seed sizes of sowing corresponding, be generally the seed of sowing the equivalent diameter size 2/3.A kind of size of hole can not satisfy size, the character requirement of the seed of sowing that has nothing in common with each other in actual applications, and therefore present solution all is to change when having disposed a plurality of cylinders 6 for needs.Cylinder 6 is preferably made by thickness 3～5mm stainless steel material.
Exactly cylinder 6 is designed to following structure in order to reduce one of core technology of changing or not changing cylinder 6, as shown in Figure 3: at the capable greatly suction hole of the even distribution multirow that makes progress in 6 weeks of cylinder (going as 3～4), every big row hole has from big to small the little capable hole of multirow (going as 6～8) of the same column distance of (arithmetic progression such as Ф 5, Ф 4, Ф 3, Ф 2, Ф 1 etc.) arrangement again every certain angle.Have certain flexible rubber strip (as shown in Figure 6) with one during application and tightly be coated on the cylinder 6, have identical on this rubber strip with big row hole count pitch-row on the cylinder 6 and the multirow suction hole that is slightly larger than largest hole aperture on the cylinder 6 as shown in Figure 4.Choose the suction hole with the seed respective diameters of sowing, the hole of opening on the rubber strip is corresponding with it, and every so big capable hole just has only this row suction hole can inhale kind, and all the other holes are all sealed by rubber strip.This rubber strip also has the damping action on increase seed and cylinder 6 surfaces to prevent seed landing on cylinder 6 surfaces, increases and inhales kind of a rate, but also increased many possibilities of inhaling the rates of kind.
Cylinder 6 left ends dress transmission system, turn round by the buncher transmission, the strength distributing center axle 7 that frame 5 is fixedly connected is equipped with and is sowed in cylinder 6 right-hand member inside at the centre of gyration, form cavity between strength distributing center axle 7 and the cylinder 6, cavity is divided into malleation chamber 12 and negative pressure cavity 13 by seal diaphragm 11, malleation chamber 12 communicates with atmosphere, strength distributing center axle 7 is uniform delegation porous on the direction along the axial length, and negative pressure cavity 13 communicates with the air pressure adjustment loop by the hole on the strength distributing center axle 7 and strength is uniform in axial each suction hole.
Air compressor of the present invention (not drawing among Fig. 1) is directly selected for use, and air pressure adjustment loop (not drawing among Fig. 1) is made up of directional control valve, pressure-control valve, flow control valve etc.Providing negative pressure to inhale to each suction hole by system during operate as normal plants; Adopting the malleation cleaning to inhale when suction hole stops up plants.The strength distribution system is made up of cylinder 6, strength distributing center axle 7 and seal diaphragm 11 etc., and structure as shown in Figure 3.Cylinder 6 centres of gyration are equipped with strength distributing center axle 7, are fixedly connected with sowing frame 5, and strength distributing center axle 7 is made by No. 45 steel pipes.Strength distributing center axle 7 along the axial length on the direction uniform delegation porous communicate strength is uniform to axial each suction hole with negative pressure cavity 13; Form cavity between strength distributing center axle 7 and the cylinder 6, this cavity is divided into negative pressure cavity 13 and malleation chamber 12 by seal diaphragm 11: malleation chamber 12 directly communicates with atmosphere, kind is put in pressure release when cylinder 6 forwards malleation chamber 12 to, inhale when forwarding negative pressure cavity 13 to kind, realize inhaling under the revolution continuously at cylinder 6 like this, put kind of a process and hocket.
3) grain conductor is installed in cylinder 6 and puts kind of below, position to accept seed and to lead cave dish 10.The grain conductor upper end is the horn mouth shape, and surface requirements is smooth, and material is the PVC plastics.The effect of its assembly is fixing grain conductor.
4) electrical control described in the present invention and " to target " control synchronously mainly are that speed control cooperation cylinder 6 dimensional structures of buncher are finished jointly.Had frame to coil 10 intensity to guarantee the cave at 10 o'clock because coil in the making cave, the frame size is generally 3 ~ 5 millimeters, and it then is 6～10 millimeters that two cave dishes 10 join, so will realize precise sowing, will realize " to target ".So-called " to target " is and guarantees that the seed after the seeding is put into the cave through grain conductor exactly on the cylinder 6 and coil in 10 holes, must make to put kind of a hole on the dish 10 of cave on the hole and cylinder 6 and be synchronized with the movement and accurately locate." to target " method is as follows: (1) cylinder 6 girths and cave coil that 10 length are identical, and a frame size is stayed in the first trip hole during cylinder 6 perforates, and a frame size is also stayed in the capable hole of tail, and levelling gets final product during assembling; (2) cave is coiled 10 conveyer belts or carrier chain and cylinder 6 and is adopted same buncher driving, both linear velocities identical " to target " synchronously after the transmission system speed change.Electrical control described in the present invention mainly realizes the speed control of buncher according to agriculture requirement.Speed control according to agriculture requirement is realized by frequency converter regulating frequency size to buncher.Adopt photoelectric cell to detect having or not of cave dish 10, do not have the cave to coil 10 o'clock photoelectric cells and send the corresponding electromagnet power-off signal of signal, otherwise send power on signal with control strength system switching to the strength system.
The course of work and the operation principle thereof of seeding unit are as follows:
Open seeding unit power supply and each electrical appliance switch, at first start the speed drive cylinder 6 clockwise forward rotation of cylinder 6 rotary systems with agriculture requirement, start seed-box 2 anti-clogging arch cambers simultaneously with micro electromagnetic vibrator 1 and unclamp a curtain stream stabilier 4, seed flowed down with stable curtain from seed-box 2 outlet and fell on 6 on the cylinder this moment, have on the cylinder 6 with the cave and coil 10 corresponding suction holes, the size in hole adapts with the seed size of being sowed.Under the effect of aspiration power, seed is adsorbed on the suction hole, eliminates aspiration power when cylinder 6 turns to when putting kind of position, and seed freely falls into cave dish 10, and unnecessary seed falls into the seed collection case, and is recovered in the seed-box 2 by seed recovery system 9.
Claims (3)
1. a point disk seedling growing precision seeder is characterized in that, comprises seed-box (2), outlet aperture adjuster (3), curtain stream stabilier (4), sowing frame (5), strength distribution system, strength regulating system; Described seed-box (2) is installed on the sowing frame (5), and outlet aperture adjuster (3) is installed described seed-box (2) exit, and curtain stream stabilier (4) is positioned at the below of seed-box (2) outlet; The air pressure adjustment loop that described strength regulating system comprises air compressor, links to each other with air compressor, described strength distribution system comprises cylinder (6), strength distributing center axle (7), seal diaphragm (11), cylinder (6) is along the circumferential direction gone up even distribution multirow suction hole, cylinder (6) girth and cave dish (10) equal in length; Strength distributing center axle (7) is located in the cylinder (6) and with sowing frame (5) fixedlys connected, form cavity between strength distributing center axle (7) and the cylinder (6), described cavity is divided into malleation chamber (12) and negative pressure cavity (13) by seal diaphragm (11), malleation chamber (12) communicates with atmosphere, strength distributing center axle (7) is uniform delegation porous on the direction along the axial length, and negative pressure cavity (13) communicates with the air pressure adjustment loop by the hole on the strength distributing center axle (7) and strength is uniform in each suction hole.
2. a kind of point disk seedling growing precision seeder according to claim 1, it is characterized in that, the arrangement of the suction hole on the described cylinder (6) is: along the circumferential direction go up the big capable suction hole of even distribution multirow at cylinder (6), have the little capable suction hole of multirow of the same column distance of the descending arrangement in aperture between per two big row suction holes, putting in order of the little capable suction hole between per two big row suction holes is identical; Be coated with rubber strip the outside of cylinder (6) and along circumferencial direction, on rubber strip, have and corresponding hole, big row suction hole position.
3. a kind of point disk seedling growing precision seeder according to claim 7 is characterized in that, the little capable suction hole between per two big row suction holes is arithmetic progression and arranges.
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| CN2011100034184A CN102106211B (en) | 2011-01-10 | 2011-01-10 | Precise seeds sowing device for growing seedlings of aperture disk |
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| CN102511226A (en) * | 2011-12-28 | 2012-06-27 | 华中农业大学 | Pneumatic direct seeding precision sowing device for rice bud seeds |
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| CN103392423A (en) * | 2013-08-13 | 2013-11-20 | 农业部规划设计研究院 | Single-grain precision seeding method and seeding device |
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| CN106612772A (en) * | 2017-03-03 | 2017-05-10 | 山东农业大学 | Air-suction type precision seed sowing device for vegetables |
| CN106922261A (en) * | 2017-03-27 | 2017-07-07 | 沈阳理工大学 | Cabbage Chinese cabbage hole plate seedling growth monoseeding device |
| CN107046882A (en) * | 2017-05-18 | 2017-08-18 | 中国水稻研究所 | A kind of aspirated-air type rice seedling planter |
| CN107493763A (en) * | 2017-10-17 | 2017-12-22 | 济南众机械有限公司 | A kind of garlic planter |
| CN107710989A (en) * | 2017-11-28 | 2018-02-23 | 青岛理工大学 | Air-suction type rice precise seed sowing device |
| CN107771455B (en) * | 2017-11-30 | 2023-01-20 | 连金玉 | Air suction roller device of seed tape knitting machine |
| CN107771455A (en) * | 2017-11-30 | 2018-03-09 | 天津泉昊农业机械股份有限公司 | The Pneumatic drum device of seed belt braider |
| CN109275385A (en) * | 2018-09-18 | 2019-01-29 | 浙江农林大学 | A kind of precise seeding machine of corn |
| CN109566018A (en) * | 2018-12-21 | 2019-04-05 | 华中农业大学 | One device duplicate rows high speed strength precision seeder |
| CN109983889A (en) * | 2019-04-25 | 2019-07-09 | 哈尔滨理工大学 | A kind of centrifugal corn seeder |
| CN110012702A (en) * | 2019-05-05 | 2019-07-16 | 北部湾大学 | It is a kind of to divide automatic sowing device in advance |
| CN110089243A (en) * | 2019-05-10 | 2019-08-06 | 东北农业大学 | It is centrifuged pin type air-suction seed metering device |
| CN110089243B (en) * | 2019-05-10 | 2021-10-29 | 东北农业大学 | Centrifugal needle type air-suction seed sowing device |
| CN110558002A (en) * | 2019-08-28 | 2019-12-13 | 广东工业大学 | Rice seed ration discharge mechanism |
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| CN111642195A (en) * | 2020-06-30 | 2020-09-11 | 农业农村部南京农业机械化研究所 | Seed cleaning device of precision seeding apparatus |
| CN111642196A (en) * | 2020-06-30 | 2020-09-11 | 农业农村部南京农业机械化研究所 | Drum-type pneumatic seed metering device |
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| CN111886970A (en) * | 2020-07-10 | 2020-11-06 | 华南农业大学 | Pneumatic type small-particle-size seed intelligent plug seedling seeder |
| CN111788910A (en) * | 2020-08-27 | 2020-10-20 | 扬州大学 | Air-suction type spiral groove wheel seed metering device |
| CN113207367A (en) * | 2021-04-25 | 2021-08-06 | 山东省农业科学院 | Automatic seeder for peony seeds |
| CN113303055A (en) * | 2021-05-25 | 2021-08-27 | 江苏大学 | Continuous hole sowing control system and method for air suction drum type seed sowing device |
| WO2022247384A1 (en) * | 2021-05-25 | 2022-12-01 | 江苏大学 | Continuous hole-seeding control system and method for air-suction drum-type seed metering device |
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| CN114271072A (en) * | 2021-12-30 | 2022-04-05 | 石河子大学 | Double-shielding type precision seedling raising and sowing device and method |
| CN116714816A (en) * | 2023-05-30 | 2023-09-08 | 山东省农业科学院 | Peanut bud directional seed metering system and peanut bud production process |
| CN116714816B (en) * | 2023-05-30 | 2024-03-05 | 山东省农业科学院 | Peanut bud directional seed metering system and peanut bud production process |
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