CN110465495A - A kind of high-efficiency seed cleaner - Google Patents
A kind of high-efficiency seed cleaner Download PDFInfo
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- CN110465495A CN110465495A CN201910830952.9A CN201910830952A CN110465495A CN 110465495 A CN110465495 A CN 110465495A CN 201910830952 A CN201910830952 A CN 201910830952A CN 110465495 A CN110465495 A CN 110465495A
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- seed
- screen
- efficiency
- screen box
- sieve
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- 238000012216 screening Methods 0.000 claims abstract description 28
- 239000012535 impurity Substances 0.000 claims abstract description 25
- 238000007667 floating Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims description 31
- 230000007246 mechanism Effects 0.000 claims description 31
- 239000004579 marble Substances 0.000 claims description 29
- 230000010355 oscillation Effects 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000005256 carbonitriding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 230000000694 effects Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 8
- 238000007873 sieving Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 244000188595 Brassica sinapistrum Species 0.000 description 2
- 235000004977 Brassica sinapistrum Nutrition 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The present invention relates to a kind of high-efficiency seed cleaners, belong to agricultural machinery technological field.The cleaner rack has suction opening with feed hopper, center；The lower section of feed hopper and the feed inlet of screening part are opposite；Screening part contains five layers of high-efficiency seed sorting screen, above the high-end of one group top and times high-rise two be undertaken under feed inlet, and low side is respectively provided with impurities removal slot, separately below equipped with batch turning plate；Middle layer in following set and one group of sorting screen reversed dip above, under the high-end batch turning plate low side for being undertaken on top layer and time upper layer, under batch turning plate parallel with it is housed；The low side of the secondary lower layer of following set and undermost high-end undertaking in middle level, under be respectively provided with impurity separating plate parallel with it, low side leads to kind of a mouth by air floating sieve；The air outlet of the bottom hair dryer of rack leads to rear suction channel.The present invention significantly reduces percentage of impurity, improves screening efficiency, guarantees operation quality for a long time.
Description
Technical field
The present invention relates to a kind of seed-cleaning apparatus, especially a kind of high-efficiency seed cleaner belongs to agricultural mechanical technology neck
Domain.
Background technique
Screening clean be the purifications of seeds such as rape conventional means.Retrieval is it is found that application No. is 201820337323 .3's
Chinese patent literature discloses that a kind of rape combined harvester is double-deck incorgruous to clean sieve structure, including mounting rack, shuttle board and drive
Moving axis is fixedly installed with double-deck screen shale shaker on the mounting rack, and the shuttle board is fixedly mounted on the double-deck vibration by support frame
The side of the top of sieve, the shuttle board is connected with interlocking lever by sliding slot, and passes through the side of interlocking lever and upper layer vibrating screen
It is fixedly connected, the side of the mounting rack is fixedly installed with driving wheel by sliding groove, and is equipped with sorting screen by driving wheel
The output end of transmission mechanism, the drive shaft is fixedly connected by drive rod with the input terminal of sorting screen transmission mechanism.Although should
The double-deck incorgruous sieve structure of cleaning of rape combined harvester improves screening quality to seed to a certain extent, but still has following
Shortcoming: 1) screening area is small, and processing efficiency is low for seed；2) selection by winnowing and screening are insufficient, it is difficult to by the impurity in seed
It rejects completely；In addition, compass screen surface changes not side, therefore adaptability is not good enough.In order to solve sorting screen blocking, to guarantee that seed is clear
Choosing is normally carried out, and seed refining apparatus is often equipped with sieve cleaning mechanism, such as application No. is 200620159381.9 Chinese patents
Document discloses a kind of seed sieve cleaning mechanism being made of cleaning ball-collecting rack, cleaning ball.However practice have shown that, the above-mentioned prior art
There are following places to be modified: 1) compass screen surface is plane, and the screening efficiency that not only its sieving area determines can be further improved, and
And seed is completely dependent on vibrosieve, screening effect remains to be further improved；2) cleaning marble diameter is uniform, collision when cleaning
Certain regularity easy to form is moved, effect is not ideal enough；3) in view of being prone to wear, sieve thickness is thicker, is easy obstruction.
Summary of the invention
The primary purpose of the present invention is that: it is directed to disadvantage of the existing technology, providing one kind can be significantly reduced containing miscellaneous
Rate, the high-efficiency seed cleaner for improving screening efficiency.
Further aim of the present invention is: by cleaning optimization design, proposing that one kind can remain that seed screens
The high-efficiency seed cleaner of quality.
To realize above-mentioned primary and foremost purpose, the basic technical scheme of high-efficiency seed cleaner of the present invention are as follows: including being located at rack
The suction opening lower section two sides of feed hopper of the top nose containing vibratory feeding device, frame top center are respectively provided with bottom belt spiral
The forward and backward bucket shape expansion chamber of conveyer；The one end of bucket shape expansion chamber far from feed hopper and vertical rear suction channel upper end after described
Connection；
The feed inlet of one end is opposite at the top of the lower section of the feed hopper and the screening part for being placed in central rack；The screening unit
Part contains five layers of high-efficiency seed sorting screen, is divided into one group two and following set three above, is divided respectively with seed two to be cleaned
One of the gradient tiltably-mounted of self-flowing angle be located in starting of oscillation mechanism in upper screen box and lower screen box, the upper screen box and lower screen box；
The high-end end of one group of top and secondary high-rise two high-efficiency seed sorting screens above, which is staggered, is undertaken on feed inlet
Middle inclination feedboard has a down dip under end, and low side is respectively provided with impurities removal slot, separately below equipped with batch turning plate parallel with it；
Middle layer high-efficiency seed sorting screen and one group of sorting screen reversed dip above in the following set, it is high-end to be undertaken on most
Under the two batch turning plate low sides that upper layer and time upper layer corresponding end of high-efficiency seed sorting screen are staggered, under parallel with it fall is housed
Flitch；The secondary lower layer of the following set and the high-end end of lowest level high-efficiency seed sorting screen, which are staggered, is undertaken on the middle layer height
Imitate the low side of seed riddle, under be respectively provided with impurity separating plate parallel with it, low side leads to kind of a mouth by air floating sieve；Respectively
The low side of impurity separating plate is respectively provided with impurities removal slot；
The bottom of the rack is equipped with the hair dryer of motor driving, and the air outlet of the hair dryer passes through air floating sieve through even wind air duct
Lead to rear suction channel afterwards.
It is the compass screen surface mesh of the top layer, secondary upper layer and middle layer high-efficiency seed sorting screen that the present invention, which further improves,
It is greater than the elliptical aperture of seed particle size for width；The compass screen surface mesh of the secondary lower layer and lowest level high-efficiency seed sorting screen is that width is small
In the elliptical aperture of seed particle size.
It is that the starting of oscillation mechanism includes motor-driven two between upper screen box and lower screen box that the present invention, which further improves,
The eccentric wheel mechanism that 180 ° of phase shifting, two eccentric wheel mechanisms pass through connecting rod respectively and connect with upper screen box and lower screen box, it is described on
Screen box and lower screen box bottom are connect by vertical elastic strip with rack respectively.After electric motor starting, pass through connecting rod of eccentric wheel respectively
Mechanism drive upper screen box and lower screen box with the flexible deformation of elastic strip left and right reciprocally swinging, realize required screening vibration.
The present invention also further improve is that the starting of oscillation mechanism includes motor-driven two between upper screen box and lower screen box
The eccentric wheel mechanism that 180 ° of phase shifting, two eccentric wheel mechanisms pass through connecting rod respectively and upper screen box and lower screen box are hinged, it is described on
Screen box and lower screen box respectively with upper rail and lower railway structure that rack is fixed on seed half to be cleaned gravity flow overturning angle
At prismatic pair, essence constitutes connecting rod of eccentric wheel slide block mechanism.After electric motor starting, upper screen box is driven by connecting rod of eccentric wheel respectively
With lower screen box respectively along upper rail and lower railway linear reciprocating motion, required screening vibration is realized.
When work, seed to be cleaned is fallen from feed hopper, the feedboard through feed inlet, about half falls on top layer, another
Half is fallen on the compass screen surface of time upper layer high-efficiency seed sorting screen, starting of oscillation mechanism drive upper screen box sieve effect under, sieve leakage
It after seed falls on corresponding batch turning plate, wanders onto middle layer high-efficiency seed sorting screen, and (is commonly called as big by the relatively bigger material that sieve stays
It is miscellaneous) then the discharge of impurities removal slot is sieved along compass screen surface；Later, the seed on the high-efficiency seed sorting screen of middle layer is fallen under the effect that sieves,
The batch turning plate of lower section is fallen into across compass screen surface, and about half falls on that time lower layer, that the other half falls on lowest level is efficient from batch turning plate low side
It on the compass screen surface of seed riddle, is transported to out after sieving by low side convergence and plants mouth, and fallen on by sieve smaller miscellaneous on each layer impurity separating plate
Object (being commonly called as small miscellaneous) then sieves the discharge of impurities removal slot.When during transporting to out kind mouth by air floating sieve, it is shrivelled, damage by worms it is bad
Seed is blown afloat by the air-flow of hair dryer into rear suction channel, while reaching upper rack under the booster action of suction opening negative pressure,
It falls in rear expansion chamber, is exported by the auger conveyor of bottom；And pass through screening, sorting and preferably go out seed be finally able to from
Kind mouth output out.
The present invention further improves, and the interval between the lower section and feed inlet of the feed hopper and suction opening are constituted
Selection by winnowing gas circuit.In this way, after seed wait clean is fallen from feed hopper, wherein lighter sundries is first directly drawn onto preceding expansion chamber,
It is released by the auger conveyor of its bottom, therefore is more advantageous to attenuating percentage of impurity.
Since the present invention is by reasonable diffluence, upper and lower screen box is made mainly to be fallen or be sieved and be reserved seed for planting by two layers of sorting screen while sieve respectively
Son, therefore sieving area is double, screening efficiency significantly improves；And the gravity flow during making full use of screen for seeds to shake, in addition first
It is fallen afterwards using the sieve of seed and sieve stays, sorting eliminates big miscellaneous and small miscellaneous respectively, and the high-efficiency seed of middle layer reversed dip is cleaned
Sieve is not only acted as to be caused to be practically in the effect of cramped construction linking detour runner due also to compass screen surface and sieving reversed dip
Jolt state, to make watering and separation procedure winnow with a dustpan, sieve effect combines, therefore significantly reduces percentage of impurity.
In order to reach further purpose, the high-efficiency seed sorting screen includes with seed half self-flowing angle to be screened
The rectangular sieve frame of ± 1 ° of tiltably-mounted, the top and bottom surface of the screen frame are respectively equipped with the rigid compass screen surface of densely covered mesh and side of gathering
The weave mesh of shape leak hole；The identical appearance ball sieve lattice of several sizes are separated by longitudinal blend stop and lateral rib in the screen frame；
The compass screen surface is in wavy, the level of wave crest and trough equal length of periodic relief corresponding with horizontal bar stripe pitch
Section and tilting section are formed by connecting by round-corner transition, and the inclination angle of the tilting section is equal to seed self-flowing angle ± 1 °；
Two kinds of partial size plastics marble for holding several diameters of placement in ball sieve lattice and being greater than the leak hole side length.
This unique curved-surface structure compass screen surface not only increases sieving area, and make full use of screen for seeds shake during
Gravity flow, effectively increases and cleans quality.Meanwhile different-diameter, the cleaning marble of predetermined density are available almost without blind under compass screen surface
The cleaning effect in area, ensure that operation quality for a long time, has properly settled the easily stifled sieve of the prior art, difficult cleaning, has influenced operation quality
The problem of.
It is that the compass screen surface is thin by 0.5 ± 0.1mm by surface carbo-nitriding Wear-resistant Treatment that the present invention, which further improves,
Steel plate is made.It is surface-treated and can guarantee that compass screen surface has enough service life, and thickness reduces as far as possible, and kind is greatly reduced
The stifled sieve phenomenon of son is conducive to cleaning but also obtaining more large amplitude when it is hit by cleaning marble.
The present invention further improves, and the compass screen surface two sides are supported by the similar profiling item of shape.
The present invention further improves, 200 ± 3 millimeters of side length for holding ball sieve lattice, wherein placing three diameters
30 ± 1 millimeters, four 25 ± 1 millimeters of diameter of plastics marble.
It can be seen that the present invention is drafted out and being not easy due to being concerned about many optimization design details generally ignored
The complete technical solution expected can obtain the screening and cleaning effect of optimization.
Detailed description of the invention
It describes in detail below in conjunction with drawings and examples to the present invention.
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
Fig. 2 is the screening part structural schematic diagram of Fig. 1 embodiment.
Fig. 3 is the dimensional decomposition structure diagram of Fig. 2 (starting of oscillation mechanism is omitted).
Fig. 4 is the high-efficiency seed sorting screen structure diagram of Fig. 1 embodiment.
Fig. 5 is the schematic perspective view (removing compass screen surface) of Fig. 4.
Fig. 6 is the dimensional decomposition structure diagram of Fig. 5.
Fig. 7 is the design parameter schematic diagram of Fig. 6.
Fig. 8 is marble density test result schematic diagram.
Fig. 9 is marble particle size test result schematic diagram.
Specific embodiment
Embodiment one
The high-efficiency seed cleaner of the present embodiment is as shown in Figure 1, the top nose of rack 11 is the charging containing vibratory feeding device 4
The 3(structure that struggles against and the prior art are similar), 11 center of top of rack is the suction opening 5 of external exhaust fan, the lower section two of the suction opening 5
Side is respectively provided with the forward and backward bucket shape expansion chamber 6,16 of bottom belt auger conveyor 13.The lower section of feed hopper 3 is (between feed inlet
Interval) to suction opening 5 constitute selection by winnowing gas circuit, sundries lighter in seed to be cleaned directly can be drawn onto sedimentation first
Room.The one end of bucket shape expansion chamber 16 far from feed hopper 3 is connected to vertical 15 upper end of rear suction channel afterwards.The lower section of feed hopper 3 with
Be placed in the screening part 1(at the middle part of rack 11 referring to fig. 2, Fig. 3) top one end feed inlet 1-3 it is opposite.It is advised suitable for partial size 2mm
The high-efficiency seed sorting screen of lattice rape seed screening is mounted in Fig. 2 and screening part shown in Fig. 31, the top of the screening part 1
The feed inlet 1-3 of portion one end is provided with the feedboard 1-2 having a down dip towards end, and five layers of high-efficiency seed, which are cleaned, is sieved into two groups --- on
One group two and following set three, face, rectangular sieve frame is by upper rail 1-4 and lower guideway 1-4 ' respectively and with rape seed
5 ° of half self-flowing angle inclinations can pull and push fixed in position in upper screen box 1-1 and lower screen box 1-11, therefore can be convenient ground on demand
Replace sorting screen.Upper screen box 1-1 and lower screen box 1-11 are located in starting of oscillation mechanism.
The high-end end of the top layer in one group and time upper layer high-efficiency seed sorting screen 2, which is staggered, above is undertaken on feedboard 1-
2 have a down dip under end, and low side is respectively provided with the impurities removal slot 1-5 that sundries is discharged towards two sides；Top layer and time upper layer high-efficiency seed
Batch turning plate 1-6 parallel with it is respectively provided under sorting screen 2.
Middle layer high-efficiency seed sorting screen 2 ' and upper one group of sorting screen reversed dip in following set, it is high-end to be undertaken on most
Upper layer and the corresponding end of time upper layer high-efficiency seed sorting screen 2 are staggered under two batch turning plate 1-6 low sides, under be equipped with it is parallel with it
Batch turning plate 1-6 '.The secondary lower layer of following set and the high-end end of lowest level high-efficiency seed sorting screen be staggered accept it is efficient in middle level
The low side of seed riddle 2 ', under be respectively provided with impurity separating plate parallel with it, the low side of each impurity separating plate is respectively provided with sundries
The impurities removal slot being discharged towards two sides.The low side of secondary lower layer and lowest level high-efficiency seed sorting screen passes through air floating sieve 14 and leads to kind of a mouth
1-8.The bottom of rack 11 is equipped with the hair dryer 9 that motor 10 drives, and the air outlet of the hair dryer passes through gas through even wind air duct 12
Lead to rear suction channel 15 after floating sieve.In this way, screening part constitutes the detour sorting screen subchannel of "the" shape, and with front and back two
Secondary selection by winnowing channel organically combines.
Starting of oscillation mechanism is referring to application No. is 200620078061.0 Chinese patent literatures, including upper screen box 1-1 and lower sieve
The two phase place that motor 1-9 drives between case 1-11 is staggered 180 ° of eccentric wheel mechanism 1-7, and two eccentric wheel mechanism 1-7 pass through respectively
Connecting rod 1-10 and 1-10 ' is connect with upper screen box 1-1 and lower screen box 1-11.Upper screen box 1-1 and the lower bottom screen box 1-11 pass through respectively
Vertical elastic strip is connect with rack, thus can motor by eccentric wheel connecting rod mechanism drive under left and right reciprocative-screening.
Upper and lower two groups of 2 or 2 ' basic structure of high-efficiency seed sorting screen is identical, as shown in Figures 4 to 7, rectangular sieve frame 2-1
Top and bottom surface be respectively equipped with the rigid compass screen surface 2-2 of densely covered mesh and the weave mesh 2- of the densely covered rectangular leak hole of side length 12.5mm
4.The compass screen surface of the mesh different from of each layer high-efficiency seed sorting screen, top layer and secondary upper layer and middle layer high-efficiency seed sorting screen
Mesh is the elliptical aperture of width 3.2mm, long 25mm, horizontal spacing 5mm, the longitudinal pitch 30mm in adjacent ellipses hole；Secondary lower layer and most
The mesh of lower layer is the elliptical aperture of width 1.8mm, long 20mm, horizontal spacing 4mm, the longitudinal pitch 25mm in adjacent ellipses hole.
It is equal that several length and width are separated by longitudinal blend stop 3-1 and transverse direction rib 3-2 in rectangular sieve frame 2-1 that four mouldings surround
Lattice are sieved for 200 millimeters, the identical appearance ball of size.To obtain optimal cleaning effect, applicant carried out two groups of Optimum Experiments, first
Influence of the cleaning marble quantity to cleaning efficiency that diameter is 25mm is first investigated.As shown in Figure 8, when cleaning marble negligible amounts
When, marble are low to the shock frequency of compass screen surface in operation process, and cleaning effect is undesirable, so that cleaning efficiency is lower.With marble
The increase of quantity, cleaning efficiency are also gradually promoted, when marble number is 7, cleaning efficiency highest.When quantity further increases,
The movement of marble is influenced each other and is restricted, and cleaning efficiency starts to reduce.Illustrate the density of plastics marble with 1-2/squares
Decimetre is advisable.Then, further to promote cleaning effect, quality is preferably cleaned, is keeping marble sum 7 constant
In the case of, the big marble replacement diameter of diameter 30mm is the small marble of 25mm one by one by applicant, and investigates replacement different number
Influence of the small marble to effect is cleaned.As shown in Figure 9, when replacing original 3 small marble using 3 big marble, i.e., each
Sieve lattice clean that effect is best when being 3 big 4 small marble of marble, because size marble will be hit with varying strength and the random of frequency
It beats, and reduces and hit blind area.It thereby determines that, places 30 millimeters and four 25 millimeters of diameter of three diameters in each appearance ball sieve lattice
Plastics marble.Marble diameter is greater than leak hole side length.
As shown in fig. 7, rigidity compass screen surface 2-2 is made of the 0.5mm thin plate by surface carbo-nitriding Wear-resistant Treatment, it is in
Wavy, the two sides profiling 2-5 support similar by shape of periodic relief corresponding with lateral rib 3-2 spacing, to avoid
Crack.Its wave crest and the tilting section AB and horizontal segment BC of trough equal length are formed by connecting by fillet R=400mm transition, installation
The inclination angle of tilting section AB afterwards is equal to 10 ° of seed self-flowing angle.
When work, after seed wait clean is fallen from feed hopper, wherein lighter sundries is drawn onto preceding expansion chamber, by its bottom
The auger conveyor in portion is released, and hereafter, the upper screen box of screening part and lower screen box drive in motor-driven two connecting rod of eccentric wheel
Under, respectively with frequency 5Hz, stroke 30mm reciprocative-screening.Feed hopper fall on feed inlet input seed to be cleaned along feedboard about
Half fall on top layer, the other half fall on the compass screen surface of time upper layer high-efficiency seed sorting screen, sieve leakage seed fall on it is corresponding fall
It after flitch, sieves and wanders onto middle layer high-efficiency seed sorting screen, and then sieved along compass screen surface by the relatively bigger material (being commonly called as big miscellaneous) that sieve stays
Move the discharge of impurities removal slot.
Later, it falls on seed on the high-efficiency seed sorting screen of middle layer and falls into the batch turning plate of lower section across compass screen surface, and sieve about one
Partly fall on time lower layer, the other half fall on the compass screen surface of lowest level high-efficiency seed sorting screen, and sieve and converged by its low side, passing through
By selection by winnowing again when air floating sieve 14, the inferior strain of lighter in weight is removed, final certified seed is exported by going out kind of mouth, and is fallen on respectively by sieve
Smaller sundries (being commonly called as small miscellaneous) on layer impurity separating plate then sieves the discharge of impurities removal slot.
Compared with prior art, the present embodiment has the following obvious advantages:
1) multi-deck screen and its curved-surface structure compass screen surface significantly increase sieving area, and efficiency significantly improves；
2) it is not only due to screen three times by upper, middle and lower and front and back selection by winnowing twice, impurity elimination is more thorough, and according to self-flowing angle
It is obliquely installed effectively to improve and cleans effect；
3) different-diameter, predetermined density cleaning marble can get best cleaning effect, guarantee operation quality for a long time；
4) the wear-resistant and anti-blocking property of the thin compass screen surface of Wear-resistant Treatment is all good, and is conducive to cleaning；
5) compass screen surface uses pull mounting structure, and dismounting is very convenient, therefore adaptability is more preferably.
Embodiment two
The high-efficiency seed cleaner basic structure of the present embodiment is identical with embodiment, is a difference in that starting of oscillation mechanism includes upper
Motor-driven two phase place is staggered 180 ° of eccentric wheel mechanism between screen box and lower screen box, and two eccentric wheel mechanisms pass through connecting rod respectively
Hinged with upper screen box and lower screen box, upper screen box and lower screen box are fixed on with seed half to be cleaned gravity flow overturning angle respectively
The upper rail and lower railway of rack constitute prismatic pair, and essence constitutes connecting rod of eccentric wheel slide block mechanism.So at work, upper screen box
In top layer, secondary upper layer high-efficiency seed sorting screen and secondary lower layer in lower screen box, lowest level high-efficiency seed sorting screen difference it is anti-
To linear reciprocating motion, inclination angle (self-flowing angle) needed for realizing is sieved, and middle layer high-efficiency seed sorting screen is due to its reversed dip
Mounting structure, therefore seed is really that jolt passes through compass screen surface.
Experiments have shown that the screening part of the present embodiment is successively fallen using the sieve of seed and sieve stays, sorting is eliminated greatly respectively
Miscellaneous and small miscellaneous, the high-efficiency seed of middle layer reversed dip is cleaned screen box and is not only acted as with the work of cramped construction linking detour runner
With, and due to compass screen surface and sieve inclined direction and cause to be practically in jolt state, to make watering and separation procedure winnow with a dustpan, sieve effect knot
It closes, either sorting or cleaning, effect is more preferable.
Claims (9)
1. a kind of high-efficiency seed cleaner contains the feed hopper of vibratory feeding device (4) including being located at rack (11) top nose
(3), suction opening (5) the lower section two sides in frame top center are respectively provided with the forward and backward bucket shape expansion chamber of bottom belt auger conveyor
(6,16)；The one end of bucket shape expansion chamber far from feed hopper is connected to vertical rear suction channel (15) upper end after described；Its feature exists
In:
The feed inlet of one end is opposite at the top of the lower section of the feed hopper and the screening part (1) for being placed in central rack；The sieve
It selects component to contain five layers of high-efficiency seed sorting screen, is divided into one group two and following set three above, respectively with seed to be cleaned
The gradient tiltably-mounted of half self-flowing angle is located at starting of oscillation mechanism in upper screen box and lower screen box, the upper screen box and lower screen box
On；
The high-end end of one group of top and secondary high-rise two high-efficiency seed sorting screens above, which is staggered, is undertaken on feed inlet
Middle inclination feedboard has a down dip under end, and low side is respectively provided with impurities removal slot, separately below equipped with batch turning plate parallel with it；
Middle layer high-efficiency seed sorting screen and one group of sorting screen reversed dip above in the following set, it is high-end to be undertaken on most
Under the two batch turning plate low sides that upper layer and time upper layer corresponding end of high-efficiency seed sorting screen are staggered, under parallel with it fall is housed
Flitch；The secondary lower layer of the following set and the high-end end of lowest level high-efficiency seed sorting screen, which are staggered, is undertaken on the middle layer height
Imitate the low side of seed riddle, under be respectively provided with impurity separating plate parallel with it, low side leads to kind by air floating sieve (14)
Mouthful；The low side of each impurity separating plate is respectively provided with impurities removal slot；
The bottom of the rack is equipped with the hair dryer (9) of motor (10) driving, and the air outlet of the hair dryer is through even wind air duct
(12) by leading to rear suction channel (15) after air floating sieve.
2. high-efficiency seed cleaner according to claim 1, it is characterised in that: the top layer, secondary upper layer and middle layer are high
The compass screen surface mesh for imitating seed riddle is elliptical aperture of the width greater than seed particle size；The secondary lower layer and lowest level high-efficiency seed are clear
The compass screen surface mesh of choosing sieve is the elliptical aperture that width is less than seed particle size.
3. high-efficiency seed cleaner according to claim 2, it is characterised in that: the starting of oscillation mechanism includes upper screen box under
Motor-driven two phase place is staggered 180 ° of eccentric wheel mechanism between screen box, and two eccentric wheel mechanisms pass through connecting rod and upper screen box respectively
It is connected with lower screen box, the upper screen box and lower screen box bottom are connect by vertical elastic strip with rack respectively.
4. high-efficiency seed cleaner according to claim 2, it is characterised in that: the starting of oscillation mechanism includes upper screen box under
Motor-driven two phase place is staggered 180 ° of eccentric wheel mechanism between screen box, and two eccentric wheel mechanisms pass through connecting rod and upper screen box respectively
Hinged with lower screen box, the upper screen box and lower screen box are fixed on rack with seed half to be cleaned gravity flow overturning angle respectively
Upper rail and lower railway constitute prismatic pair.
5. high-efficiency seed cleaner according to claim 3 or 4, it is characterised in that:, the lower section of the feed hopper and charging
Interval and suction opening between mouthful constitute selection by winnowing gas circuit.
6. high-efficiency seed cleaner according to claim 5, it is characterised in that: the high-efficiency seed sorting screen include with to
The rectangular sieve frame of seed half self-flowing angle ± 1 ° tiltably-mounted is screened, the top and bottom surface of the screen frame are respectively equipped with densely covered
The weave mesh of the rigid compass screen surface of mesh and the rectangular leak hole that gathers；If being separated into the screen frame by longitudinal blend stop and lateral rib
It does the identical appearance ball of size and sieves lattice；
The compass screen surface is in wavy, the level of wave crest and trough equal length of periodic relief corresponding with horizontal bar stripe pitch
Section and tilting section are formed by connecting by round-corner transition, and the inclination angle of the tilting section is equal to seed self-flowing angle ± 1 °；
Two kinds of partial size plastics marble for holding several diameters of placement in ball sieve lattice and being greater than the leak hole side length.
7. high-efficiency seed cleaner according to claim 6, it is characterised in that: the compass screen surface is by by surface carbo-nitriding
0.5 ± 0.1mm sheet metal of Wear-resistant Treatment is made, and is surface-treated and can guarantee that compass screen surface has enough service life, and thickness is most
It may be decreased, the stifled sieve phenomenon of seed is greatly reduced and is conducive to but also obtaining more large amplitude when it is hit by cleaning marble
Cleaning.
8. high-efficiency seed cleaner according to claim 7, it is characterised in that: the compass screen surface two sides are by similar imitative of shape
The support of shape item.
9. high-efficiency seed cleaner according to claim 8, it is characterised in that: 200 ± 3 milli of side length for holding ball sieve lattice
Rice, wherein placing three 30 ± 1 millimeters, four 25 ± 1 millimeters of diameter of diameter of plastics marble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910830952.9A CN110465495A (en) | 2019-09-04 | 2019-09-04 | A kind of high-efficiency seed cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910830952.9A CN110465495A (en) | 2019-09-04 | 2019-09-04 | A kind of high-efficiency seed cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110465495A true CN110465495A (en) | 2019-11-19 |
Family
ID=68514858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910830952.9A Pending CN110465495A (en) | 2019-09-04 | 2019-09-04 | A kind of high-efficiency seed cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110465495A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182184A (en) * | 2021-04-23 | 2021-07-30 | 秦情 | Automatic shaking device for medicinal material selection |
| CN116371717A (en) * | 2023-05-15 | 2023-07-04 | 河南理工大学 | Multi-degree-of-freedom large-deflection elastic vibration screening system and regulation and control method |
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