CN102106211B - 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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- CN102106211B CN102106211B CN2011100034184A CN201110003418A CN102106211B CN 102106211 B CN102106211 B CN 102106211B CN 2011100034184 A CN2011100034184 A CN 2011100034184A CN 201110003418 A CN201110003418 A CN 201110003418A CN 102106211 B CN102106211 B CN 102106211B
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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 types 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 like 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 lean on seed deadweight or mechanical device to accomplish.Mechanical type seeding unit form is varied, and structure is multifarious.Like 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 accomplish 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 like 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 applied at present.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, and employing strength mode is planted clearly and charged seed, and changes kind of the state that fills of kind of subgroup through 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 several kinds of modes exists the problem of the following aspects at present:
(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, nozzle structure is complicated, and suction nozzle replacing is difficult for, the manufacturing installation cost is more high, and clear kind of easy blocking is difficult for during seeding.
(3) because a kind of size of suction hole can only be sowed the seed of corresponding with it, certain limit inside dimension and proterties, therefore usually need change and inhale kind of a core component, give design and have all brought influence in manufacturing, installation, use, Financial cost, service life.
To 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 deficiency of 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 accomplish 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 scheme that the present invention adopted 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; Said seed-box is installed on the sowing frame, and outlet aperture adjuster is installed said seed-box exit, and curtain stream stabilier is positioned at the below of seed-box outlet; The air pressure adjustment loop that said strength regulating system comprises air compressor, links to each other with air compressor; Said 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 and is fixedly connected; Form cavity between strength distributing center axle and the cylinder; Said cavity is divided into malleation chamber and negative pressure cavity through seal diaphragm; Malleation chamber and atmosphere, strength distributing center axle is uniformly distributed with delegation's porous on the direction along the axial length, and negative pressure cavity communicates with the air pressure adjustment loop through the hole on the strength distributing center axle and strength is uniformly distributed with in each suction hole.
Change or do not change cylinder in order to reduce; The arrangement of the suction hole on the said cylinder is: along the circumferential direction go up the evenly big capable suction hole of distribution multirow at cylinder; Between per two big row suction holes, have the little capable suction hole of multirow of the same column distance of the descending arrangement in aperture, 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 what is called curtain stream is meant that parameters such as after seed flows out, controlling its flowing velocity size, direction and arrangement from seed-box flow to the process of the suction hole completion precision metering device of strength cylinder with 1～2 seed equivalent size thickness.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 puts kind of two processes: 1) inhale kind: the seed of being sowed form down in the effect of seed-box and curtain stream current stabilization Control Component have the stablizing of certain speed and direction, the seed curtain of simple grain thickness flows; Seed flow on the cylinder with 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 accomplish 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 sketch map 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 sketch map among the present invention;
Fig. 6 a is rubber layout sketch map with holes among the present invention;
Fig. 6 b is the left view of Fig. 6 a.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description.
Precision seeder of the present invention has adopted novel precise sowing seeding mode to realize precise sowing, and operation principle is as shown in Figure 2, and 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; Said seed-box 2 is installed on the sowing frame 5; Outlet aperture adjuster 3 is installed said 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; Said 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 and is fixedly connected; Form cavity between strength distributing center axle 7 and the cylinder 6; Said cavity is divided into malleation chamber 12 and negative pressure cavity 13 through seal diaphragm 11; Malleation chamber 12 and atmosphere, strength distributing center axle 7 is uniformly distributed with delegation's porous on the direction along the axial length, and negative pressure cavity 13 communicates with the air pressure adjustment loop through the hole on the strength distributing center axle 7 and strength is uniformly distributed with in axial each suction hole.Anti-arch camber electromagnetic vibrator 1 is installed in the outside of said 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 through 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 through seed recovery system 9.
The concrete assembling and the operation principle of each parts is following 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 processed 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; To be usefulness door be installed in the steel plate on seed-box 2 outlet right sides with hinges with outlet aperture adjuster 3, is shaped as rectangle, surface coverage stainless steel materials to guarantee smoothly 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 processed 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, like 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.Coefficient of friction is different; Then thereby the also different speed that form curtain stream of the angle of friction that from seed-box 2, flows out of seed are different; Can change the size of angle of friction after the angle of change seed-box 2; To change and the state of control grain weight during (velocity magnitude and direction, do not beat be advisable with seed) with the seed outflow.After seed flows out, make seed be that simple grain distributes, arranges in order, density basically evenly helps absorbing seeding through the further effect of curtain stream stabilier 4.Curtain stream stabilier 4 also can directly seal seed-box 2 temporarily and export when situation 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; Can know by the bulk solid theory: 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 from seed-box 2, flow out; 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 distance and corresponding cave dish 10 row are 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 practical application, and therefore present solution all is to change when having disposed a plurality of cylinders 6 for needs.Cylinder 6 is preferably processed 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 (like 3～4 row), the every again separated certain angle in whenever big row hole has from big to small the little capable hole of multirow (like 6～8 row) of the same column distance of (arithmetic progression such as Ф 5, Ф 4, Ф 3, Ф 2, Ф 1 etc.) arrangement.Have certain flexible rubber strip (as shown in Figure 6) with one during application and tightly be coated on the cylinder 6, have on this rubber strip with cylinder 6 on big row hole count pitch-row identical and to be slightly larger than the multirow suction hole in 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 suction kind of a rate, but has also increased the possibilities of many suction kind of rates.
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, malleation chamber 12 and atmosphere through seal diaphragm 11; Strength distributing center axle 7 is uniformly distributed with delegation's porous on the direction along the axial length, and negative pressure cavity 13 communicates with the air pressure adjustment loop through the hole on the strength distributing center axle 7 and strength is uniformly distributed with in axial each suction hole.
Air compressor according to the 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; When suction hole stops up, adopting the malleation cleaning to inhale plants.The strength distribution system is made up of cylinder 6, strength distributing center axle 7 and seal diaphragm 11 etc., and structure is 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 processed by No. 45 steel pipes.Strength distributing center axle 7 is uniformly distributed with delegation's porous along the axial length on the direction and communicates with negative pressure cavity 13 strength is uniformly distributed with axially each suction hole; 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 through 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, like this cylinder 6 continuously revolution realize suction down, 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 controlling cooperation cylinder 6 dimensional structures of buncher are accomplished 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 following: (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 controlling of buncher according to agriculture requirement.The speed controlling of buncher according to agriculture requirement realized by frequency converter regulating frequency size.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 following:
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, had on the cylinder 6 with the cave and coiled 10 corresponding suction holes, and 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; Said seed-box (2) is installed on the sowing frame (5), and outlet aperture adjuster (3) is installed in said 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 said strength regulating system comprises air compressor, links to each other with air compressor; Said 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) and is fixedly connected; Form cavity between strength distributing center axle (7) and the cylinder (6); Said cavity is divided into malleation chamber (12) and negative pressure cavity (13) through seal diaphragm (11); Malleation chamber (12) and atmosphere; Strength distributing center axle (7) is uniformly distributed with delegation's porous on the direction along the axial length, and negative pressure cavity (13) communicates with the air pressure adjustment loop through the hole on the strength distributing center axle (7) and strength is uniformly distributed with 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 said cylinder (6) is: along the circumferential direction go up the big capable suction hole of even distribution multirow at cylinder (6); Between per two big row suction holes, have the little capable suction hole of multirow of the same column distance of the descending arrangement in aperture, putting in order of the little capable suction hole between per two big row suction holes is identical; Outside at cylinder (6) is coated with rubber strip along circumferencial direction, on rubber strip, has and corresponding hole, big row suction hole position.
3. a kind of point disk seedling growing precision seeder according to claim 2 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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| CN2011100034184A CN102106211B (en) | 2011-01-10 | 2011-01-10 | Precise seeds sowing device for growing seedlings of aperture disk |
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| CN102106211B true CN102106211B (en) | 2012-02-01 |
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| CA2635401C (en) * | 2007-09-21 | 2009-11-24 | One Pass Implements Inc. | Air seeder/fertilizer apparatus having metering means and distribution manifold with selectively openable ports |
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|---|---|---|---|---|
| CN2317611Y (en) * | 1997-11-07 | 1999-05-12 | 石河子植保机械厂 | Aspirated-air precision seed planter |
| CN2679987Y (en) * | 2004-03-22 | 2005-02-23 | 黑龙江省农业机械工程科学研究院 | Air-suction type single or double strip seed sowing device |
| CN201081892Y (en) * | 2007-03-08 | 2008-07-09 | 王继东 | Gas intaking seeding device of seeding machine |
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| CN102106211A (en) | 2011-06-29 |
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