CN102365218A - Differential pressure seed meter with an endless belt seed transport member - Google Patents
Differential pressure seed meter with an endless belt seed transport member Download PDFInfo
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- CN102365218A CN102365218A CN2010800140825A CN201080014082A CN102365218A CN 102365218 A CN102365218 A CN 102365218A CN 2010800140825 A CN2010800140825 A CN 2010800140825A CN 201080014082 A CN201080014082 A CN 201080014082A CN 102365218 A CN102365218 A CN 102365218A
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- seed
- band
- utensil
- hole
- endless belt
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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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
- A01C7/12—Seeders with feeding wheels
- A01C7/127—Cell rollers, wheels, discs or belts
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Abstract
A seed meter is provided having an endless belt as a seed transport member together with a pressure differential to hold the seed onto the belt. The use of an endless beit as the seed transport member enables the spatial orientation of the seed transport member to vary from location to location along the path of the belt where different seed meter functions are performed. The belt allows greater freedom in determining the location of the seed pick-up region and the seed release or removal region beyond the constraints of a fixed diameter seed disk. The belt further allows for a narrow envelope seed meter which can cross-feed seed into a substantially vertically oriented delivery device.
Description
Technical field
The present invention relates to a kind of seed sowing device or sower of planter, and relate more specifically to a kind of seed sowing device with endless belt formula seed transfer element.
Background technology
As other people, the farmer also manages to increase their productive force.Along with the increase of farmland scale, in the same time period, must accomplish more work.For example, the period that the planting season on the farmland, continuity was fixed.For increasing the area of farming, the peasant must plant crops otherwise can reduce crop yield on the area that increases in same planting season.Therefore, need a kind of can cover every day multiaspect more long-pending cultivate equipment.A kind of mode that increases productive force is to increase the width of cultivating equipment.Yet there is physical restriction for the equipment size.Another kind method is to increase the operating speed of cultivating equipment.
A kind of planter of common form is that each row of planter utilizes the vacuum spin chuck seed sowing device on unit, US Pat the 5th, 170, and 909 show a kind of like this structure.The seed dial rotation is through the seed bank in the one of which side.The hole that delegation or multirow circumferential array are arranged at the excircle place of contiguous seed rotating disk limits some seed chambers at the place, surperficial circumferential array hole of seed rotating disk groove, and seed chamber mechanically quickens and finally in seed bank, collects each seed.The pressure reduction that is produced by the vacuum source that is coupling in the housing that is positioned at seed rotating disk opposite side remains on seed chamber with seed.In the exit position, vacuum is renderd a service and to be cut off, and each seed is discharged from the chute of housing bottom in the seed chamber and fallen in the seed ditch dug with a plow of below.For increasing the seed of cultivating that rotating disk carries, rotating disk must comparatively fast rotate, and it possibly influence seed collection and dispersion on the contrary, and perhaps the diameter of rotating disk must be increased to and emit the seed of accelerating when per minute rotates same running revolution.Increase disk diameter and then increased the seed export position height, cause the bigger distance of seed free-falling.It influences the accuracy of arranging seed on the contrary.
Like US Pat the 6th, 681, shown in 706, belt conveyor also uses in the capable unit of planter.The belt conveyor here is not to be used to sow seed, but seed is sent to drop point from seed sowing device.Like US Pat the 6th, 581, shown in 535, belt conveyor has been used for the grain strip player as dispenser.Belt conveyor is equipped with a plurality of collection seeds and seed is moved to the groove of drop point site.Such belt conveyor is as not separating seed so that the positive displacement seed sowing device of each seed to be provided.
Summary of the invention
Utilization of the present invention have the pressure differential endless belt as seed sowing device and seed transfer element on said being with, to keep seed.The elasticity of said band makes the spatial orientation of said band change to another position from a position, can realize different seed sowing device functions.Said band can surmount the restriction of fixed diameter seed sowing device rotating disk, on the position of confirming seed collection zone and seed release areas, bigger degree of freedom is arranged.On the position of confirming seed collection zone and seed release areas, elasticity allows seeding property to be configured to be fit to multiple constraint system.
Description of drawings
Fig. 1 is the planar view with planter of seed sowing device of the present invention;
Fig. 2 is the lateral plan of the capable unit of planter shown in Figure 1;
Fig. 3 is the lateral plan of the relevant seed sowing device of shown in the present and capable unit framework;
Fig. 4 is the stereo amplification figure in the seed collection zone of seed sowing device shown in Fig. 3;
Fig. 5 is the block diagram of an optional embodiment of seed sowing device belt conveyor;
Fig. 6 is the section-drawing of the vacuum manifold seen from Fig. 3 center line 6-6 position;
Fig. 7 is the section-drawing of seed hopper and seed sowing device in the seed collection zone of seeing from Fig. 3 center line 7-7 position;
Fig. 8 is the lateral plan that is similar to the seed sowing device of Fig. 3, shows the seed sowing device in the operational process;
Fig. 9 is the block diagram of seed sowing device and seed hopper, and optional seed singulator and mixer are shown;
Figure 10 is the block diagram of optional seed singulator;
Figure 11 is the block diagram of the optional embodiment of seed sowing device of the present invention;
Figure 12 is the schematic side view of another structure of seed sowing device of the present invention in the capable unit of planter, illustrates simultaneously seed is broadcast ground-surface seed delivery system from seed sowing device;
Figure 13 is the block diagram of the seed sowing device of Figure 12 of decomposing of part;
Figure 14 is the block diagram of the seed sowing device seen along Figure 13 center line 14-14 position;
Figure 15 is the block diagram of the vacuum manifold of seed sowing device shown in Figure 13;
Figure 16 is the section-drawing of the guide wheel mounting structure of seed sowing device shown in Figure 13;
Figure 17 is the planar view of the vacuum control element of seed sowing device shown in Figure 13;
Figure 18 is the block diagram of the seeder unit shell lid of seed sowing device shown in Figure 13;
Figure 19 is the block diagram of the upper end of seed sowing device shown in Figure 13;
Figure 20 is the block diagram that the seed sowing device of Figure 13 relevant with the seed delivery system is shown;
Figure 21 is the block diagram of another embodiment of seed sowing device of the present invention.
The specific embodiment
With reference to figure 1, the example of the planter 10 that comprises pressure reduction seed sowing device of the present invention is shown.Planter 10 comprises the tool bar 12 as planter framework 14 parts.A plurality of plantation row unit 16 is installed on the tool bar 12.Fig. 2 illustrates in greater detail capable unit 16.Row unit 16 is installed on the tool bar 12 in a conventional manner.Row unit 16 is provided with the central frame element 20 that front end has a pair of upwardly extending arm 21 (Fig. 3).Arm 21 is connected to parallel-crank mechanism 22, and row unit 16 is installed to tool bar 12 through parallel-crank mechanism 22 and makes progress in a known way between unit 16 and the tool bar 12 and relatively move downwards to be expert at.Seed is stored in the seed hopper 24 and is provided to seed sowing device 26.Seed sowing device 26 functions are independently to select seed and seed is provided to seeding mechanism, and the seed tube 28 among Fig. 3 is dispensed into seed by plough 30 and opens the plantation ditch dug with a plow in soil.The degree of depth of gauge wheel 32 control ditch dug with a plows, closed wheel 34 closed ditch dug with a plow above seed.Gauge wheel 32 is installed to frame element 20 through arm 36.Tool bar is on by the operative orientation forward of arrow 38 indications, to move on the ground with the row unit design.
Fig. 3-8 illustrates an embodiment of differential seed sowing device 26.Show for clear, omit other structures of row unit 16.Flexible seed delivery element provides with the form of endless belt 50.Endless belt 50 is provided with a series of holes or hole 52 along seed one side 55 of its length in Fig. 4 to opposite side 57 extensions.In Fig. 4, has the optional groove 53 that forms seed chamber around hole 52 on the endless belt.Seed chamber can improve the collection and the maintenance of certain seed on the endless belt.The seed side of endless belt has a series of edges are the rib form with two sub-edges bulge-structure 54 equally.Each bulge-structure 54 forms opposite face 59 at the moving direction 61 of said band.Described in this embodiment with another surface preferably smooth.Endless belt 50 moves around guide wheel 60 and drive wheel 58, and oppositely around tension force guide wheel 60.Said endless belt further moves at the outside face of vacuum manifold 62.Three pulleys and vacuum manifold limit the mobile route of endless belt 50.Pulley 56,60 is installed to capable unit framework 20 by carriage (not shown) in a conventional manner.Tension force guide wheel 60 is installed to and is biased to keep the pivotal arm (not shown) of endless belt 50 internal tensions.Pulley 58 is preferably driven by electrical motor 64.But be appreciated that and also can utilize modes such as machinery, hydraulic pressure to drive seed sowing device 26.In addition, the arbitrary pulley in the system all can be drive pulley and the pulley that can comprise any amount.The opposite face 59 of bulge-structure 54 is used to stir the seed in the seed bank 80, and this structure is selectable.
Fig. 5 illustrates another embodiment of endless belt.Endless belt 50 ' has hole 52 ', and each hole 52 ' is around the structure 230 of fluted form, and groove is begun by hole 52 ' front end at moving direction, cuts more deeply until the hole in the seed side of endless belt, and finishes at the back in the hole that is close to opposite face 232.Opposite face stirs seed and is described below and assists seed is pushed into delivery system.
Fig. 6 illustrates the section-drawing of vacuum manifold 62.Manifold 62 has the hollow that forms vacuum chamber 66.Manifold outer wall 68, endless belt 50 slips over above that, has slit 70.When endless belt when direction moves shown in the arrow 72, the hole is passed through on slit 70.This make the hole be exposed to mainfold vacuum chamber 66 in depress.Manifold further comprises vacuum ports 74, and the suction end of air pump (not shown, but in many new-type planters use is arranged all) is coupled in mainfold vacuum chamber 66 through vacuum ports.
The bottom 76 of funnel 24 keeps a seed bank 80.Alternatively, can adopt mini-funnels reception and maintenance seed from the large-scale seed-box of central authorities.Funnel bottom 76 is close to endless belt 50 and has the opening 78 that is assembled to endless belt 50 as shown in Figure 7.Therefore endless belt 50 closed funnel openings 78 expose endless belt 50 to seed bank 80.
Be in operation, as shown in Figure 8, vacuum pump produces low pressure in manifold 62.Endless belt 50 is driven by drive wheel 58 and carries out as shown in Figure 8 clockwise rotating.This makes endless belt move up through seed bank 80.Opposite face 59 on the structure 54 touches the seed in the seed bank and stirs seed.Air is from hole 52 suction manifolds of endless belt, and wherein endless belt overlays on the slit 70 of manifold outer wall 68.When endless belt moved through seed bank, the air drawn seed 82 that is drawn into manifold was to each hole 52 and cross ring-type pressure reduction with holes seed is kept above that.Seed 82 is along the path movement of the endless belt 50 seed release areas until 84 places, manifold lower end, and the pressure reduction of crossing endless belt herein finishes.Seed leaves endless belt and falls into seed tube 28 from endless belt 50 because of gravity subsequently, and gets in the ditch dug with a plow of being offered by plough 30 from seed tube 28.Seed sowing device 26 can be configured to have the housing and the malleation that is used to collect and keep seed on endless belt 50, but not the negative pressure of above-described vacuum manifold.
In funnel bottom 76, endless belt limits seed collection zone 84 through seed bank 80.Seed is collected by endless belt herein.In this seed collection zone, said band is positioned at the plane 86 (as shown in Figure 8) that relative vertical plane surface 88 can be at an angle.In contrast, the plane of rotor disc of typical vacuum spin chuck seed sowing device is vertical, and therefore disc surfaces is vertical in the seed collection zone.In addition, in the seed release areas, said band plane is opposite with respect to the angle of vertical surface, like endless belt section 87 with respect to shown in the angle of vertical plane surface 89.So, endless belt is suspended on the seed, and therefore when discharging kind of a period of the day from 11 p.m. to 1 a.m, the endless belt path is removed from the seed that is falling.These are different with vertical basically vacuum spin chuck, and its seed falls in the part that about three position was released and in dispose procedure, crossed the rotating disk vertical surface.Flexible seed delivery element, endless belt 50 allow along its path at the spatial orientation of diverse location selection transfer element, to optimize the function of seed sowing device in each position.For the vacuum spin chuck of basic vertical orientation, the orientation of seed transfer element all remains on vertical or approaching vertical in all positions to all functions.
In Fig. 3-8 illustrated embodiment, kind of the device that falls is positioned at seed tube 28, is positioned at more the position near ditch dug with a plow than traditional vacuum rotating disk.The length that this reduces the seed free fall is beneficial to reduce on kind of the subpath unusual lowering time and final cloth kind possibly take place.The seed transfer element uses endless belt to allow the designer freely to select best seeds fall position and does not receive the restriction of fixed diameter seed rotating disk.For example, if desired, kind of the device that falls is in the position of seed tube even can be lower than what show.
Please refer again to Fig. 4, little by little locate to be provided with clap board 90 in the seed collection zone in the past.Plate 90 is positioned at double or multi-fold seed on the hole 52 that said belt surface is used to remove said band.This area has multiple difform plate 90 can be used to remove double seed.Also can use brush, wheel or other finger-like mechanisms.
Please refer to Fig. 9, as optional, plate 90 can use a pair of air nozzle 94 to replace.Nozzle is set to be with 50 air blowings and remove many times of seeds to said.The seed seed bank 80 that falls back immediately.Nozzle is couple to the exhaust side that is used for providing to manifold 62 air pump of vacuum through conduit 96.Also can use independently air compressor if want to produce keen draft.The stirring of seed bank 80 also can be accomplished by pressurized air.Nozzle 98 is arranged on funnel bottom 76, is positioned under the seed collection zone.The air of nozzle 98 is used for seed bank, seed is flowed in seed bank but not is deposited in together.Air moves seed and crosses said belt surface, assists hole 52 to collect seed.Nozzle 98 also is couple to air pump exhaust side or air compressor or be couple to the positive air pressure import under the situation of using the positive air pressure system independently through conduit 100.Can have the seed transfer element but not shown in use pressure gas to remove double seed and stir seed bank in the seed sowing device of seeding band, such as but not limited to, vacuum seed rotating disk.
Please refer to Figure 10, be provided with cylinder decollator 102 with 50 surface near the position in hole 52 in that contact is said.When seed process cylinder, if on certain particular bore, be stained with many times of seeds, cylinder removes unnecessary seed lightly.
Figure 11 illustrates to have with said with said another embodiment with 110 pressure reduction seed sowing device of having of 50 structural similitudies.Saidly be with 110 around drive wheel 112, guide wheel 114,116 and conversely around tension force guide wheel 118.Drive wheel is provided with has the flange 120 that disperses the bulge-structure 122 of seed in the seed bank.Manifold 124 is with 110 vacuum pressure reduction is provided to said.Guide wheel 114 has slit when said band moves, to keep the vacuum of said band on guide wheel.Thereby guide wheel 114 has minor diameter at run duration, and the centnifugal force on the seed that guide wheel 114 moves impels seed to be with 110 to break away from from said, therefore disperses seed automatically.The housing 126 that surrounds guide wheel 114 blocks the seed of disengaging and comprises the slideway 128 of the seed that breaks away from being sent back to seed bank.
Fig. 3, the seed sowing device shown in 11 can be designed as in the packaging space of the seed sowing device that can be contained in the capable unit of planter that many current John's Deeres make.The unit operation in the plane of the approximate vertical of moving direction interior orientation forward or backward of being expert at of said band.But, also can be other forms of seed sowing device.For example, with reference to Fig. 1, the endless belt formula seed sowing device 200 of signal is showed said with 250 relations with respect to the row block construction.Said with 250 planes that are positioned at respect to three axis tilts, promptly the plane of said band with respect to vertically forward, be bevelled to back plane, be bevelled and be bevelled with respect to vertical crosscut plane with respect to horizontal plane.In addition, seed collection zone 206 is positioned at said with 250 lower end, and that seed releasing position 208 is positioned at is said with 250 upper end.In embodiment shown in Figure 12, seed is removed and leaves by seed distribution sector 210 in the seed releasing position saidly is with 250.Seed distribution sector 210 _ _ being in the application documents that the application number in the examination is of application have detailed description, and quote in full in this application as a reference.Seed distribution sector 210 is being started the year's ploughing between the ditch rotating disk 30, and the lower end from the said Tape movement seed of seeding to the row unit places under the seed distribution sector in the ditch dug with a plow that is formed on the soil.Seed sowing device 200 is similar with the seed sowing device 26 that the front is described, and is described in detail hereinafter with reference to Figure 13-20.
Saidly be with 250 to have the outside seed contact surface or seed contact side 251.Saidly comprise that with 250 delegation is positioned at first hole 252 on the slit 270 of manifold 262.Hole 252 extends through said band, allows air to pass said band circulation.Said band further comprises the structure 254 of some rib shapes of extending from seed contact surface 251.Each structure 254 has an opposite face 255 (as shown in Figure 9) towards said direction of belt travel.In this embodiment, structure 254 opposite faces 255 stretch out from the seed contact side 251 of said band.In the embodiment shown, structure 254 is not to extend laterally to said band both sides of the edge, but stays a flat marginarium 257 along an edge of said band.Preferably, said with on the second row hole 258 be arranged on second slit 272 of manifold outer wall 268 process.Hole 258 only is communicated with vacuum chamber 266 when lacking of 258 paths, hole partly is positioned on the slit 272.
Saidly be formed for the V-shaped groove of seed bank with 250 with housing 276, its direction in said Tape movement extends upward.Seed in the opposite face 255 contact storehouses that formed by the structure 254 of said band also stirs seed, makes the seed circular flow shown in Figure 14 cleaved line 284.Because said band forms a side of V-shaped groove, so as long as in the seed bank sufficient seed is arranged, no matter planter tilts or turning, seed contacts with said band all the time.An advantage of seed sowing device is to close when vacuum state, said with on the seed seed bank that falls back.This is opposite with the rotating disk seed sowing device, and when vacuum state was closed, a part of seed on the rotating disk on the seed tube of rotating disk seed sowing device can fall to the ground.
Shown in figure 19, case lid 278 is installed to manifold and covers the open side of housing 276.Dual scrubber 310 is installed in case lid, and after the installation, it is positioned at said 250 tops of being with.Dual scrubber 310 is roughly wedge shape and increases gradually to be increased in the coverage on the hole 252 at width on the moving direction of said band.Dual scrubber 310 removes double or many times of seeds from said being with, and makes that only a seed covers a hole 252.
In service, when said band rotation, opposite face 255 contacts and stirring are positioned at the seed of the seed bank of housing 276 bottoms.By means of be applied on the hole by the inner vacuum that produce of manifold 262 or in the positive air pressure that the seed side of said band produces, adhere to each hole 252 of said band from the seed of seed bank.Utilize main slit 270, when said band from seed collection zone 206 when moving to guide wheel 256, seed continues to remain on said being with.By means of the ditch on the guide wheel, when said band moves the prong 306 that arrives fork-shaped element 304 up to seed and hole around guide wheel, vacuum is kept in the hole always.When arriving prong 306, vacuum finishes, and seed is with 205 to come off from said.Alternatively, can use mechanical system, or combination termination vacuum and mechanical mode remove seed from said being with, perhaps move seed through mechanical system from said being with still applying under the vacuum condition.
When can moving on short slit 272 in the hole, the second row hole 258 still moves so that seed is remained on wherein.Through collecting seed, seed bank is further stirred in hole 258.In addition, when hole 258 arrived the downstream end 273 of second slit 272, seed came off from said band.The releasing position in hole 258 make seed when falling through one of via hole 252.If the seed failure is collected in hole 252, hole 252 is empty, and the seed of whereabouts can keep above that.If hole 252 is not empty, but collect many times of seeds, the seed of whereabouts can collide many times of seeds, and assists to remove in the many times of seeds one or more.In this case, the seed of whereabouts plays effect, the mistake of avoiding there is not seed on the emerged in operation hole 252 or many times of seeds being arranged.
In seed releasing position 208, seed is sent to seed delivery system 210 from seeding band 252.Seed delivery system 210 _ _ _ _ application be in the checking process application number for _ _ _ _ patent application in detailed description is arranged, and quote in full for reference in this application.Seed delivery system 210 comprises same around guide wheel and be contained in the circular element in the housing 322.Housing has upper shed 324, and seed gets into delivery system through upper shed 324.Circular element is shown as brush with bristle 314 with 312 form, bristle is inswept said with 250 face 251 to remove seed from it.In seed releasing position 208, vicinity is said is with 250 to be provided with transition disc 316.Transition disc 316 has first curved edge 318 that when guide wheel moves, supports said belt edge at said band.The seed of bristle in position contact hole 252A shown in Figure 19 of brush band is from said cleaning seed, the face 320 of inswept transition disc 316 on the direction shown in the arrow 321 be with.Opposite face 255 behind the 252A of hole is got to the seed that comes off from the said band of seeding as the back plate washer to stop brush.Opposite face 255 promotes seed to brush bristles.Transition disc limited seed at 250 o'clock to allow brush to break away from said being with at seed continuously in the housing of the salient that extends below 323 insertion delivery systems 210; On transition disc 316 and get into the inside of delivery system housing, the wherein inside face of brush bristles and delivery system housing 322 restriction seed.Guide plate 325 stretches out with the guiding seed and prevents to sweep down seed from said being with of seeding prematurely from the transition disc surface.
Shown in figure 13, said have the seed side with 250 radially-outer surfaces at said band, has vacuum manifold in the inner radial surface of said band.Seed sowing device can be constructed with opposite way, and promptly the seed side is in the inner radial surface of said band, and vacuum manifold is at the radially-outer surface of said band.Such embodiment is shown in figure 21, for clarity sake, has omitted the part parts among Figure 21.Seed sowing device 340 comprises the supporting member 342 that is installed to capable unit framework by carriage 344.Motor 346 is couple to drivingly and drives guide wheel 348.Guide wheel 350,352 is supported by supporting member 342 equally.Seeding band 360 is radially inside around guide wheel and its seed side 362.Hole 364 extends through said band as aforementioned.Each structure 366 is arranged on the opposite face 368 of closelying follow 364 back, hole on the said direction of belt travel 370.Housing 372 connects with seed source and keeps a seed bank in its lower end 374.Saidly pass seed bank like Figure 13, the similar manner shown in 14 with 360.Vacuum manifold 378 covers the said band radially-outer surface 376 on a said belt paths part.Like the manifold 262 of above-mentioned description, manifold 378 comprises the slit (not shown) that aligns with hole 364.Manifold 378 is connected to vacuum pump in manifold, to produce low pressure.Low pressure in the manifold causes seed to adhere to said being with through said hole 364 absorbing air of being with.Seed adheres on said being with in the seed collection zone of housing 372 lower ends 374, and arrives seed release areas 380 with said Tape movement.Guide wheel 350 offer slit think said with on seed the space is provided.In release areas 380, the brush of seed delivery system 210 is with 312 to sweep down seed from seeding band 360, and seed is distributed to the ditch dug with a plow in the soil of describing the front.The opposite face 368 of structure 366 assists seed is pushed brush band interior 312 once more.
Seed sowing device 340 like diagram and description utilizes low pressure or vacuum manifold that seed is adhered to said band.Manifold 378 can be replaced by stay bearing plate with slit and compression shell 372, so that positive air pressure to be provided seed is remained on said being with on 360.
Seed sowing device of the present invention has the flexible said band as seeding and seed transfer element, and the orientation that realizes element makes the various functions of element in the equal optimization of diverse location to change along said belt paths.When its in flat rotating disk the time, said belt surface needs not be vertical in the seed collection zone.On the contrary, said band can be a bevelled, produces one less than vertical path of going up a slope for collecting seed.Equally, when seed discharged, if fall into seed tube, discharging orientation can be reverse bevelled, or dangle, thereby said band leaves seed when seed vertically falls.Alternatively, when seed sowing device and seed delivery system are united when using, when seed sowing device was transferred to delivery system, the said band of seeding also can be best with respect to the orientation of delivery system at seed.
Below described preferred forms in detail, obvious, in the scope of the present invention that does not break away from the claim qualification, can make multiple change.
Claims (32)
1. a utensil that is used for seeding comprises
One endless belt has a plurality of holes on it;
Be used for along the device of the said band of a qualification path movement; And
Be used for producing a pressure differential device, along at least a portion in the said path between a seed collecting zone and the seed release areas, to adhere in said hole and to keep the seed side of seed at said band at the opposite side of said band.
2. utensil as claimed in claim 1; Wherein saidly be used for producing a pressure differential device and comprise a manifold and an air pump at said band opposite side; Said manifold has the opening that is covered by said band, and said air pump produces a pressure reduction between the inside of said manifold and outside.
3. utensil as claimed in claim 2, wherein said air pump produce a lower pressure in said manifold.
4. utensil as claimed in claim 1; Wherein the said seed side by said band is in one first angle on one first plane of said seed collection area limiting with respect to vertical surface, and is in one second angle on one second plane that said seed release areas limits with respect to vertical surface the said seed side of said band.
5. utensil as claimed in claim 4, wherein said second plane tilts to produce the face that dangles to said vertical surface, and the said seed side of said band faces down herein, thus said band is removed from said seed after said seed is released.
6. utensil as claimed in claim 4, wherein said first plane to tilt to horizontal surface less than an angle of 90 degrees degree, produce a upward slope path in said seed collection zone when said band is mobile from said seed collection zone.
7. utensil as claimed in claim 1 further comprises:
One housing, it is suitable for keeping a seed bank to be arranged on said being with, and said band is suitable for moving through said storehouse; And
One compressed air source, it is connected to a nozzle to deflate from said compressed air source, and said nozzle is positioned air is put into said seed bank, stirs the said seed in the said storehouse in view of the above.
8. utensil as claimed in claim 7 wherein is used for comprising a compressed air source at the opposite side generation pressure differential device of said band.
9. utensil as claimed in claim 1 further comprises:
One housing, it is suitable for keeping a seed bank to be arranged on said being with, and said band is suitable for moving through the seed in the said storehouse, and wherein seed adheres to said band; And
One compressed air source, it is connected to a nozzle with from said compressed air source air-out, and said nozzle is positioned and deflates on the said seed side with the said band after said seed collection zone, to remove unnecessary seed from said being with.
10. utensil as claimed in claim 9 wherein produces a pressure differential device at the opposite side of said band and comprises a compressed air source.
11. utensil as claimed in claim 1 further comprises:
One housing, it is suitable for keeping a seed bank to be arranged on said being with, and said band is suitable for moving through the seed in said storehouse, and wherein seed adheres to said band; And
Said endless belt is advanced with the speed that is enough to remove unnecessary seed through centnifugal force along a crooked route.
12. utensil as claimed in claim 11, wherein said housing are suitable for collecting the unnecessary seed that is removed and send said seed back to seed bank.
13. utensil as claimed in claim 1, the said seed side of wherein said band has a plurality of structures, and each structure forms an opposite face at the direct of travel of said band.
14. utensil as claimed in claim 13, the structure of wherein said formation opposite face is formed in the groove of said seed side.
15. utensil as claimed in claim 14, wherein each hole is centered on by one of groove of said seed side, and said opposite face is followed said hole at said direct of travel.
16. utensil as claimed in claim 13, the said structure that wherein forms said opposite face is protruded outside the seed side direction.
17. utensil as claimed in claim 16, one of wherein said opposite face be set to said hole in a hole adjacent and on said direct of travel, follow said hole.
18. utensil as claimed in claim 13, wherein said opposite face is laterally separated with respect to said hole.
19. utensil as claimed in claim 13; Further comprise a housing, it forms a V-slot with said band, to keep wanting the seed bank of seeding; And the said opposite face of wherein said band contact and stir the seed said storehouse in, cause circulating of the interior seed of said seed bank.
20. utensil as claimed in claim 1, wherein said band around a plurality of guide wheels, are radially-outer surfaces thereby said band has inner radial surface and radially-outer surface and said seed side.
21. utensil as claimed in claim 1, wherein said band around a plurality of guide wheels, are inner radial surface thereby said band has inner radial surface and radially-outer surface and said seed side.
22. seed sowing device endless belt; It has a seed side and an opposite side; Between said seed side and opposite side, have a plurality of holes that extend through said band of arranging along said strip length direction; And said seed sowing device endless belt is suitable for being actuated to advancing direction through a seed bank one, and said seed side has a plurality of structures, and each structure forms an opposite face on said direct of travel.
23. seed sowing device endless belt as claimed in claim 22, the structure of wherein said formation opposite face are the grooves of said seed side.
24. seed sowing device endless belt as claimed in claim 23, wherein each hole is centered on by one of groove of said seed side, and said opposite face is followed said hole at direct of travel.
25. seed sowing device endless belt as claimed in claim 22, the structure of wherein said formation opposite face is protruded outside said seed side direction.
26. seed sowing device endless belt as claimed in claim 25, one of wherein said opposite face is provided with for contiguous each hole and follows said hole at direct of travel.
27. seed sowing device endless belt as claimed in claim 22, wherein said opposite face is laterally to separate with respect to said hole.
28. a capable unit that is used for sower comprises:
One seed sowing device; It has a ring-type seeding band; Have a plurality of holes on this ring-type seeding band, be used for along the device that limits the said band of path movement, said path has a seed collecting zone and a seed release areas; And on the opposite side of said band, produce a pressure differential device, said pressure reduction be created at least a portion in the path between seed collection zone and the seed release areas with said with on place, said hole adhere to and keep seed; And
One seed delivery system; It is used for receiving seed from said seeding band; Said delivery system has the circular element that is housed in the housing; Said housing has a upper shed, receives seed, the seed between said housing of said circular element intercepting and the said circular element through said upper shed from said seed sowing device.
29. capable unit as claimed in claim 28, the said circular element of wherein said delivery system is inswept said seeding band is to remove seed from said seeding band.
30. capable unit as claimed in claim 28 further comprises the transition element between the said housing of said seeding band and said delivery system, the said circular element of said delivery system moves said seed at said transition element.
31. capable unit as claimed in claim 28, the said circular element of wherein said delivery system are to have bristle to move on the surface of said seeding band with brush band and the said brush band bristle that grasps said seed.
32. capable unit as claimed in claim 28, wherein said seeding band have the structure of following each hole that forms opposite face, with promote on the said hole seed get into the said circular element of said delivery system.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2010/027767 WO2010088703A1 (en) | 2009-02-02 | 2010-03-18 | Differential pressure seed meter with an endless belt seed transport member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102365218A true CN102365218A (en) | 2012-02-29 |
| CN102365218B CN102365218B (en) | 2014-11-26 |
Family
ID=44900875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080014082.5A Active CN102365218B (en) | 2010-03-18 | 2010-03-18 | Differential pressure seed meter with an endless belt seed transport member |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102365218B (en) |
| CA (1) | CA2755334C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106717356A (en) * | 2017-01-22 | 2017-05-31 | 河北农业大学 | District seeder |
| CN108432417A (en) * | 2018-02-07 | 2018-08-24 | 吉林大学 | A kind of radial direction individual gas sources formula feed mechanism for seed |
| CN110199625A (en) * | 2019-06-20 | 2019-09-06 | 山东省农业科学院作物研究所 | A kind of wheat seeder and implantation methods with raising emergence rate and strong sprout rate function |
| CN110402653A (en) * | 2019-08-12 | 2019-11-05 | 山东省农业机械科学研究院 | A kind of planting garlic auxiliary seedling band and transplantation device |
| CN113853887A (en) * | 2021-11-01 | 2021-12-31 | 四川省烟草公司宜宾市公司 | Flexible uniform sowing and seed discharging device |
| CN114916293A (en) * | 2022-05-19 | 2022-08-19 | 河南豪久科技有限公司 | Belt type air suction seed sowing device |
| CN114946334A (en) * | 2022-06-20 | 2022-08-30 | 中国农业科学院草原研究所 | A seeder that is used for small-sized seed to grow seedlings |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8800457B2 (en) * | 2009-02-02 | 2014-08-12 | Deere & Company | Planting unit for a seeding machine having a seed meter with a downwardly facing metering member and a seed delivery system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106717356A (en) * | 2017-01-22 | 2017-05-31 | 河北农业大学 | District seeder |
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| CN110199625A (en) * | 2019-06-20 | 2019-09-06 | 山东省农业科学院作物研究所 | A kind of wheat seeder and implantation methods with raising emergence rate and strong sprout rate function |
| CN110199625B (en) * | 2019-06-20 | 2023-10-27 | 山东省农业科学院作物研究所 | Wheat seeder with functions of improving emergence rate and strengthening seedling rate and planting method |
| CN110402653A (en) * | 2019-08-12 | 2019-11-05 | 山东省农业机械科学研究院 | A kind of planting garlic auxiliary seedling band and transplantation device |
| CN110402653B (en) * | 2019-08-12 | 2021-11-02 | 山东省农业机械科学研究院 | Garlic is planted with supplementary seedling area and transplanting device |
| CN113853887A (en) * | 2021-11-01 | 2021-12-31 | 四川省烟草公司宜宾市公司 | Flexible uniform sowing and seed discharging device |
| CN114916293A (en) * | 2022-05-19 | 2022-08-19 | 河南豪久科技有限公司 | Belt type air suction seed sowing device |
| CN114916293B (en) * | 2022-05-19 | 2024-05-31 | 河南豪久科技有限公司 | Belt type air suction seed metering device |
| CN114946334A (en) * | 2022-06-20 | 2022-08-30 | 中国农业科学院草原研究所 | A seeder that is used for small-sized seed to grow seedlings |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102365218B (en) | 2014-11-26 |
| CA2755334C (en) | 2017-08-22 |
| CA2755334A1 (en) | 2010-08-05 |
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