CN104620780B - Separation cleaning plant of castor combined harvester - Google Patents
Separation cleaning plant of castor combined harvester Download PDFInfo
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- CN104620780B CN104620780B CN201510078962.3A CN201510078962A CN104620780B CN 104620780 B CN104620780 B CN 104620780B CN 201510078962 A CN201510078962 A CN 201510078962A CN 104620780 B CN104620780 B CN 104620780B
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Abstract
The invention relates to a separation cleaning device of a castor combined harvester, which comprises seven parts, namely a bracket, a feeding device, a vibrating screen separation device, a driving device for driving a vibrating screen to vibrate, a conveying device, a wind power cleaning device and a grain storage device; the feeding device, the vibrating screen separation device, the driving device for driving the vibrating screen to vibrate and the conveying device are arranged on the support, the feeding device is arranged at one end of the support, the vibrating screen separation device is arranged at the outlet end of the feeding device, and the conveying device is arranged at the outlet end of the vibrating screen separation device; the grain storage device is arranged at the outlet end of the conveying device; the wind power cleaning device is arranged at the tail part of the separation cleaning device. The separation cleaning device adopts a double separation mode of vibration separation of the vibrating screen and wind power cleaning separation, thereby greatly reducing the impurity rate of the fruits.
Description
Technical field
The present invention relates to a kind of separating cleaning devices of castor-oil plant combined harvester, belong to agricultural machinery separating cleaning technology neck
Domain.
Background technology
China castor-oil plant harvests production mechanization level than relatively low, and domestic castor-oil plant harvesting work is substantially by being accomplished manually, labor
Fatigue resistance is big, and efficiency is low, and waste rate is big, and operating environment is poor, and the shortage of labour and the increasingly rise of price limit castor-oil plant production
The market prospects of sparetime university's scale development.And castor-oil plant during harvest, it is necessary to carry out separating cleaning, remove broken inside castor-oil plant
Leaf and stalk prevent the moldy metamorphism in transport and storage and transport process of the castor-oil plant after harvest, also add deeply in decladding etc. for castor bean
Separation screening during work provides condition guarantee.
Therefore, the separating cleaning system on a kind of castor-oil plant combined harvester is researched and developed, in castor harvester harvest castor bean
Castor-oil plant separating cleaning can be to reduce human cost, improve the harvest achievement of castor harvester, China castor-oil plant is promoted to receive simultaneously
Obtain the active demand of machine industry development.
Castor-oil plant completely harvests process：Dark brown or yellowish-brown, seed is presented in the general capsule for having 80% on castor-oil plant fruit ear of working as
Top depression break there is apparent literary network to be can whole fringe harvesting.The fruit ear of harvesting need to dry in time, threshing after drying.Conditionally
The special hulling machine of castor-oil plant can be used to shell, no hulling machine can ted fruit ear stack retting, and then shell can crack automatically, this
When, it is laid with stone roller or wooden stick, seed, which is shone to water content, can store or sell less than less than 9%.
In castor-oil plant, it is necessary to carry out separating cleaning during harvest, broken leaf and stalk, prevent inside removing castor-oil plant
Castor-oil plant after harvest transport and storage and transport process in moldy metamorphism, the also bolter for castor bean in the deep-processing process such as decladding
Choosing provides condition guarantee.
Through retrieval, the patent of the fruit separating cleaning device in relation to castor-oil plant combined harvester is only following at present.
1st, it is clear that utility model patent -- castor harvester (CN 201020285796.7) discloses a kind of castor-oil plant fruit separation
Screening device, the course of work are：Castor-oil plant bar is first cut down by the ceding of Taiwan, is delivered to threshing cylinder by cutting table auger, last crop is through double
Road bar dental roller and the squeezing action of arc notch board brush down castor-oil plant peach, and stalk and part are not isolated on arc notch board
The castor-oil plant peach come is discharged to stalk outside body after discharger is transported to and is separated on the board-like combined separation sieve of ladder, castor-oil plant peach
It is entered with a part of broken leaf in wind-force cleaning room, through wind model to the board-like reciprocating sieve of ladder, the work through the board-like reciprocating sieve of ladder
The clean castor-oil plant peach of comparison is obtained under.The utility model patent can realize the separation of castor-oil plant fruit and stalk, leaf, but at it
The method for managing castor-oil plant fruit is direct shell-cracking kernel-taking, changes harvesting approach and fails to adapt to castor-oil plant growth characteristic completely, after castor-oil plant picking
It need to dry in time, it just can threshing after dry.
2. through retrieving " a kind of scissor type castor bean harvester ", Chinese patent ZL201410000820.0 provides one kind and cuts
Blade castor bean harvester including tractor, winder, scissors, spiral propeller, conveyer, threshing cylinder, separator ridlle, is shaken
Dynamic sieve is characterized in that winder is fixedly mounted in tractor cab front end, winder rotation stirs castor bean plant and swings to propulsion
Device, scissors are made of moving knife and stationary knife, and spiral propeller will cut off plant and be sent into conveyer, enter back into threshing cylinder, use
Rasp bar threshing, castor bean plant after threshing are discharged from impurity discharging port, and the thin impurity of castor bean and part is from threshing cylinder sieve
Enter double-deck screen shale shaker into separator ridlle, then by separator ridlle, add a partition plate in the air outlet of wind turbine, dynamic dividing plate and it is fixed every
Plate, is partitioned into two air passages up and down by the air outlet of wind turbine, corresponds respectively to double-deck screen shale shaker, and wind turbine is adjusted according to effect is cleaned
Interior dynamic dividing plate, by two-stage selection by winnowing, impurity blows the afterbody of vibrating screen, and castor bean falls into spiral from the sieve pore of vibrating screen and stirs
Dragon enters feed bin by elevator.But cost is higher, percentage of impurity is higher.
3rd, patent of invention -- comb-tooth-type picking fruit and stalk fixed length quantify bundling castor-oil plant combined harvester (CN
201410242083.5) a kind of castor-oil plant fruit separating cleaning device is disclosed, the course of work is：Material enters separating cleaning dress
It puts, falls into oscillating screen plate first, be hinged with crank and rocker mechanism below oscillating screen plate, vibrating screen crank passes through vibrating screen transmission shaft
Power is obtained, shaker shoe pitman movement is driven, so as to which oscillating screen plate be driven to move back and forth.It is transported in material from one end of oscillating screen plate
During moving the other end, the vibration sieve pore that the small stalk in part, leaf can be penetrated on oscillating screen plate is fallen, and is made tilting delivery plate
It is discharged with lower by removing passage outside body.Wind-force cleaning plant sum aggregate silo is set gradually below oscillating screen plate end, it is remaining
Material is fallen after reaching oscillating screen plate end, and during whereabouts, wind-force cleaning plant relies on wind-force suction, by surplus material
In stalk and leaf be drawn into and remove passage and by outside its exclusion machine, the castor bean after separation screening is fallen into collection silo.The hair
Bright patent can realize the separation of castor-oil plant fruit and stalk, leaf, but what it shook that separation principle utilizes is crank and rocker mechanism, is shaken
The movement locus of dynamic sieve plate is a horizontal plane, it is impossible to material effectively are transported to the other end from one end of oscillating screen plate, conveyed
It is inefficient.
The content of the invention
The purpose of the present invention is exactly to solve the above problems, providing a kind of separating cleaning device of castor-oil plant combined harvester.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of separating cleaning device of castor-oil plant combined harvester, including stent, feed arrangement, vibrating screen separator, drive
Seven driving device of dynamic shaker vibration, conveying device, wind-force cleaning plant and grain storage apparatus parts, wherein, it is described into
Expect device, vibrating screen separator, the driving device for driving shaker vibration and conveying device installation on the bracket；
The feed arrangement is mounted on one end of the stent, and the vibrating screen separator is mounted on going out for feed arrangement
Mouth end, the conveying device are mounted on the port of export of vibrating screen separator；The grain storage apparatus are mounted on going out for conveying device
Mouth end；The wind-force cleaning plant is mounted on the afterbody of the separating cleaning device.
The vibrating screen separator includes vibrating screen, mounted on the vibrating screen pedestal of vibration lower part of screen and mounted on shaking
The bouncing ball by elastic wire saws of dynamic sieve base upper surface.
The rear and front end of the vibrating screen pedestal is surrounded by fence, and the gap of fence is less than the radius of the bouncing ball.
The vibrating screen includes two pieces of support plates for being evenly arranged with an exhausting hole respectively and is uniformly pacified by the through hole
Several isodiametric cylinder gratings between two pieces of support plates, the circle between adjacent through-holes in the support plate
Average diameter of the heart away from less than castor-oil plant.
The grating of the vibrating screen is screw thread grating, and the middle part of every grating is all sheathed with the first rolling sleeve, described the
Gap is left between one rolling sleeve and front and rear two pieces of support plates of the vibrating screen, and there are one for gap site difference fitting
Two roll sleeve.The deep groove ball bearing that described first rear and front end for rolling sleeve is mounted on by one on grating respectively is installed
On grating, described first rolls sleeve is interference fitted with the deep groove ball bearing.
The feed arrangement is the first conveyer belt, and the port of export of first conveyer belt tilts down.
The conveying device is the second conveyer belt, and the port of export of second conveyer belt is inclined upwardly, and described second passes
Band and the angle on ground is sent to be less than castor-oil plant and the angle of inclination of the second conveyer belt during the generation self-locking of the second conveyer belt.
The port of export of the vibrating screen separator tilts down, the angle between the vibrating screen separator and ground
For α, the tangent value of α is more than the coefficient of friction f of castor-oil plant and vibrating screen, to prevent impurity from locking phenomenon occur during sliding.
The gradient of the vibrating screen separator is less than the gradient of the feed arrangement.
The driving device includes vibrating motor, vibrator and the vibrating motor and vibrator of installation on the bracket
Connecting shaft.
The wind-force cleaning plant is interior suction ventilator, and the interior suction ventilator leads to including fan leaf, wind turbine gabarit and impurities removal
Road.
A kind of separating cleaning device of castor-oil plant combined harvester is castor-oil plant combined harvester special equipment, can generation
For the separating cleaning device in castor harvester, to complete castor-oil plant fruit separating cleaning operation.
The beneficial effects of the invention are as follows：
Vibrating screen is rack-mount and tilts down certain angle.The vibration of vibrating screen makes castor-oil plant fully roll during work
It is dynamic, and then the leaf adulterated in castor-oil plant and small stalk is made fully to fall into vibrating screen bearing, improve separative efficiency.
Since the impurity such as leaf and small stalk or castor-oil plant may be stuck in vibrating screen after the gap of vibrating screen is fallen into
In gap, screening efficiency and precision can be so reduced.Therefore the form that installation on grating rolls sleeve is employed, sleeve is rolled and exists
It can be rolled after being subject to external force, in addition the vibration of vibrating screen, can release the castor-oil plant being stuck in vibrating screen gap, while can again
Impurity is shaken off, impurity is made to fall in vibrating screen bearing, improves screening efficiency and separation accuracy.The vibrating screen bearing of the present invention
In be additionally provided with bouncing ball, in the course of work, nondirectional spring can be generated after bouncing ball stress, gives vibrating screen certain impact
Power can also shake off the impurity that may be blocked in vibrating screen, improve screening efficiency.
The separating cleaning device cleans the matched dual separate mode of separation using shaker vibration separation and wind-force, greatly
The big percentage of impurity for reducing fruit；Compared with the same device of domestic product, the degree of feed separation is substantially increased, and
And work efficiency has further raising.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the front view of the present invention；
Fig. 3 is the structure diagram of vibrating screen；
Fig. 4 is that the first rolling sleeve and second roll the assembling structure schematic diagram of sleeve and grating；
Fig. 5 is the assembling schematic cross-sectional view of grating and support plate；
Fig. 6 is vibrating screen understructure schematic diagram；
Fig. 7 is feed arrangement structure diagram；
Fig. 8 is transport conveyor constructions schematic diagram；
Fig. 9 is grain storage apparatus structure diagram；
Figure 10 is wind turbine cleaning plant structure diagram；
Figure 11 is vibrating screen pedestal sectional view.
Wherein, 1- stents, 2- feed arrangements, 3- first roll sleeve, 4- vibrating screens, 5- vibrating screen pedestals, 6- conveying dresses
It puts, 7- wind-force cleaning plants, 8- grain storage apparatus, 9- fence, 10- support plates, 11- vibrating screen pedestal slideways, 12- bouncing balls, 13-
Conveyer belt driving wheel, 14- conveyer belt driven wheels, 15- fan leafs, 16- wind turbine gabarits, 17- impurity discharging passages, 18- conveying devices
Stent, 19- vibrating screen base supports, 20- feed arrangement stents, 21- vibrating motor stents, 22- vibrating motors, 23- vibration electricity
Machine and vibrator connecting shaft, 24- vibrators, 25- deep groove ball bearings, 26- second roll sleeve, 27- gratings, the fastening of 28- gratings
Nut, 29- washers, 30- screw thread gratings, 31- fixed hooks, 32- elastic strings.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
With reference to shown in Fig. 1, Fig. 2, Fig. 7, a kind of separating cleaning device of castor-oil plant combined harvester, including stent 1, charging dress
Put 2, vibrating screen separator 5, the driving device, conveying device 6, wind-force cleaning plant 7 and the grain storage that drive shaker vibration
8 seven parts of device, wherein, the feed arrangement 2, vibrating screen separator 5, drive shaker vibration driving device and
Conveying device 6 is mounted on the stent 1；The feed arrangement is mounted on one end of the stent 1, and the vibrosieve is from dress
5 ports of export for being mounted on feed arrangement 2 are put, the conveying device 6 is mounted on the port of export of vibrating screen separator 5；The storage
Grain device 8 is mounted on the port of export of conveying device 6；The wind-force cleaning plant 7 is mounted on the afterbody of the separating cleaning device.
The stent 1 includes installing 2 stent 20 of feed arrangement of feed arrangement 2, for installing the defeated of conveying device 6
Send appliance stand 18, for the vibrating screen base support 19 of fixing vibrating screen pedestal 5 and for installing shaking for vibrating motor 22
Dynamic electric machine support 21.The driving device includes vibrating motor 22, vibrator 24 and vibrating motor and vibrator connecting shaft 23,
Vibrator 24 is connected with vibrating screen 4, vibrating screen 4 to be driven to vibrate.Vibrating motor 22 export high-frequency vibration make castor-oil plant with it is miscellaneous
While matter is rapidly separated, impurity falls into vibrating screen pedestal 5, and castor-oil plant quickly rolls down to above conveying device 6 on vibrating screen 4.
As shown in figure 3, the vibrating screen 4 includes two pieces of support plates 10 for being evenly arranged with an exhausting hole respectively and passes through institute
Several isodiametric cylindrical gratings 27 that through hole is uniformly mounted between two pieces of support plates 10 are stated, in the support plate 10
Adjacent through-holes between distance of center circle be less than castor-oil plant average diameter.
As shown in Figure 4, Figure 5, the grating 27 of the vibrating screen is screw thread grating 30, and the middle part of every grating is all sheathed with the
One rolls sleeve 3, and grating 27 is rolling the clearance portion before and after sleeve 3 and vibrating screen 4 between two pieces of support plates 10 positioned at first
There are one the second rolling sleeves 26 for fitting respectively for position.The rear and front end of the first rolling sleeve 3 is mounted on respectively by one
Deep groove ball bearing 25 on grating 27 is mounted on grating 27, and described first rolls sleeve 3 and 25 interference of deep groove ball bearing
Cooperation.Grating is fixed on by grating clamp nut 28 and washer 29 in support plate 10.
As shown in fig. 6, vibrating screen pedestal 5 be mounted on stent 1 on, from feed end to discharge end tilt, vibrating screen pedestal 5 with
The inclined angle on ground is α, and the tangent value of α is slightly larger than castor-oil plant and the coefficient of friction f of vibrating screen 4, so it is prevented that shaking
There is self-locking in the motion process for slipping into castor-oil plant field in the impurity fallen into dynamic sieve pedestal 5.Vibrating screen 4 passes through vibrating screen pedestal
Slideway 11 is installed on vibrating screen pedestal 5, and block is welded on the end of vibrating screen pedestal slideway 11, and therefore, vibrating screen 4 will not be from
It is skidded off downwards in vibrating screen pedestal slideway 11, and because the gravity of itself of vibrating screen 4, vibrating screen 4 will not be from vibrating screen bottom
It is skidded off upwards in seat slideway 11.Clearance fit is formed between vibrating screen pedestal 5 and vibrating screen 4.Bouncing ball 12 is located at vibrating screen bottom
Bouncing ball 12 is fixed in the upper surface of seat 5, one end of elastic string 32, and the connection between bouncing ball 12 and elastic rope 32 can pass through
Bouncing ball is caught with fine-structure mesh, is then connected by the end of fine-structure mesh with elastic string 32, the other end of elastic string 32 ties up to fixed extension
On hook 31, fixed hook 31 is located at the inside bottom surface center of vibrating screen pedestal 5.The rear and front end of vibrating screen pedestal 5 is fence 9,
The gap of fence 9 is less than the radius of bouncing ball 12.
Its length when elastic string 32 does not stress is equal to the vertical range that fixed hook 31 arrives vibrating screen 4；Elasticity
The maximum flexibility collapsing length of rope 32 is equal to the distance that fixed hook 31 arrives fence 9.In the castor harvester course of work, shake
Stent 1 where dynamic sieve pedestal 5 can generate concussion movement with the movement of castor harvester fuselage, so that at vibrating screen bottom
Bouncing ball 12 in seat 5 generates elastic bounce, and bouncing ball 12 is constantly patted on vibrating screen 4, vibrating screen pedestal 5 and fence 9
Face so that impurity in heaps above vibrating screen 4 is quickly fallen, and then makes impurity fast spread in heaps in vibrating screen pedestal 5
It is slipped to by fence 9 inside castor-oil plant field, under the continuous beating of bouncing ball 12, impurity is also more prone to fall into castor fence 9
Inside numb field.
As shown in Fig. 1, Fig. 8, conveying device 6 is conveyer belt, by motor driving wheel 13 is driven to rotate, so as to drive driven wheel
14 rotate, and further run conveyer belt.The conveyer belt and the angle on ground (acute angle) are slightly less than castor-oil plant and are sent out with conveying device 6
The angle of lock is born from, to prevent castor-oil plant from being fallen from the feed end of conveyer belt.
With reference to shown in Fig. 9, Figure 10, the wind-force cleaning plant 7 is interior suction ventilator, and the interior suction ventilator includes writing fan
Leaf 15, wind turbine gabarit 16, impurity discharging passage 17.Wind-force cleaning plant 7 is absorbed from the impurity in the castor-oil plant that conveyer belt raises, after cleaning
Castor-oil plant fruit fall into grain storage apparatus 8, grain storage apparatus 8 for collection silo.The bottom of wind-force cleaning plant 7 and the edge of collection silo
There is certain gap, this gap is slightly less than the mean radius of castor-oil plant, but does not interfere with the normal fortune of interior wind-force cleaning plant 7
Turn.
The course of work of the present invention is as follows：
With reference to shown in Fig. 1, Vibration on Start-up motor 22 makes vibrating screen separator work, then from feed arrangement 2 by castor-oil plant
It adds in.Castor-oil plant enters from feed arrangement 2 on vibrating screen 4 first, with the continuous vibration of vibrating screen 4, less than 4 adjacent sieve of vibrating screen
The small cauline leaf of castor-oil plant in the gap between item 27 can be fallen into vibrating screen pedestal 5, at the same stay in the castor-oil plant on vibrating screen 4 can be to downslide
It is dynamic, until being rolled out from 4 discharge port of vibrating screen, reach conveying device 6.Into conveying device 6 castor-oil plant in going out from conveying device
During mouth end drops into grain storage apparatus 8, impurity therein can be sucked impurity discharging passage 17 by wind-force cleaning plant 7, so as to complete
Into the separating cleaning of castor-oil plant.Vibrating screen 4 also rolls sleeve 3 using the form that the first rolling sleeve 3 is all hung on grating 27, first
After impurity is subject to squeeze, axial rotation can be generated, impurity can be fallen, and be avoided that impurity blocks, improve screening effect
Rate and separation accuracy.Bouncing ball 12 is additionally provided in the vibrating screen bearing 5 of the present invention, during the work time, after 12 stress of bouncing ball
Nondirectional spring can be generated, gives vibrating screen 4 certain impact force, can also shake off the impurity that may be blocked in vibrating screen 4,
Improve screening efficiency.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not to invention protection domain
Limitation, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not required to
It is still within the scope of the present invention to make the creative labor the various modifications or changes that can be made.
Claims (7)
1. a kind of separating cleaning device of castor-oil plant combined harvester, it is characterised in that：Including stent, feed arrangement, vibrosieve
From seven device, the driving device for driving shaker vibration, conveying device, wind-force cleaning plant and grain storage apparatus parts；
Wherein, the feed arrangement, vibrating screen separator, the driving device for driving shaker vibration and conveying device installation
On the bracket, the feed arrangement is mounted on one end of the stent, and the vibrating screen separator is mounted on charging and fills
The port of export put, the conveying device are mounted on the port of export of vibrating screen separator；The grain storage apparatus are mounted on conveying and fill
The port of export put；The wind-force cleaning plant is mounted on the afterbody of the separating cleaning device；The vibrating screen separator bag
Include vibrating screen, mounted on vibration lower part of screen vibrating screen pedestal and mounted on vibrating screen base upper surface by elastic wire saws
Bouncing ball；The rear and front end of the vibrating screen pedestal is surrounded by fence, and the gap of fence is less than the radius of the bouncing ball；
Its length when elastic string does not stress is equal to fixed hook to the vertical range of vibrating screen, the maximum bullet of elastic string
Property collapsing length be equal to fixed hook to fence distance；
The vibrating screen includes two pieces of support plates for being evenly arranged with an exhausting hole respectively and is uniformly mounted on by the through hole
Several isodiametric cylinder gratings between two pieces of support plates, the distance of center circle between adjacent through-holes in the support plate
Less than the average diameter of castor-oil plant；The grating of the vibrating screen is screw thread grating, and the middle part of every grating is all sheathed with the first rolling
Sleeve leaves gap, gap site difference between the first rolling sleeve and front and rear two pieces of support plates of the vibrating screen
There are one the second rolling sleeves for fitting；The depth that described first rear and front end for rolling sleeve is mounted on by one on grating respectively
Ditch ball bearing is mounted on grating, and described first rolls sleeve is interference fitted with the deep groove ball bearing.
2. separating cleaning device according to claim 1, it is characterised in that：The feed arrangement be the first conveyer belt, institute
The port of export for stating the first conveyer belt tilts down.
3. separating cleaning device according to claim 1, it is characterised in that：The conveying device be the second conveyer belt, institute
The port of export for stating the second conveyer belt is inclined upwardly, and second conveyer belt and the angle on ground are less than castor-oil plant and the second conveyer belt
The angle of inclination of the second conveyer belt during self-locking occurs.
4. separating cleaning device according to claim 1, it is characterised in that：The port of export of the vibrating screen separator to
Lower inclination, the angle between the vibrating screen separator and ground are α, and the tangent value of α is more than the friction of castor-oil plant and vibrating screen
Coefficient f.
5. separating cleaning device according to claim 4, it is characterised in that：The gradient of the vibrating screen separator is small
In the gradient of the feed arrangement.
6. separating cleaning device according to claim 1, it is characterised in that：The driving device includes being mounted on the branch
Vibrating motor, vibrator and vibrating motor and vibrator connecting shaft on frame.
7. separating cleaning device according to claim 1, it is characterised in that：The wind-force cleaning plant is interior suction ventilator,
The interior suction ventilator includes fan leaf, wind turbine gabarit and impurity discharging passage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510078962.3A CN104620780B (en) | 2015-02-12 | 2015-02-12 | Separation cleaning plant of castor combined harvester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078962.3A CN104620780B (en) | 2015-02-12 | 2015-02-12 | Separation cleaning plant of castor combined harvester |
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| CN104620780B true CN104620780B (en) | 2018-06-01 |
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| CN109443420B (en) * | 2018-09-03 | 2021-02-12 | 江苏大学 | Quality detection device and detection method for combined harvester fan |
| US11642699B2 (en) * | 2021-11-24 | 2023-05-09 | Kellin Keesee | Vibration tables for sorting agricultural products |
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| CN2382481Y (en) * | 1999-08-05 | 2000-06-14 | 吴秀凉 | Crop screening machine |
| NL2009493C2 (en) * | 2012-09-20 | 2014-03-24 | Dijke Beheer B V Van | Roller screen and method for sieving, especially for tubers or such bulbous products. |
| CN103831234B (en) * | 2014-03-17 | 2015-12-30 | 青岛理工大学 | Swing cage type walnut classifying screen |
| CN203972282U (en) * | 2014-03-21 | 2014-12-03 | 秦宝林 | A kind of vibratory sieve |
| CN204616468U (en) * | 2015-02-12 | 2015-09-09 | 青岛理工大学 | Separation cleaning plant of castor combined harvester |
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