CN208768491U - A kind of air-and-screen cleaner - Google Patents

A kind of air-and-screen cleaner Download PDF

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Publication number
CN208768491U
CN208768491U CN201821148591.7U CN201821148591U CN208768491U CN 208768491 U CN208768491 U CN 208768491U CN 201821148591 U CN201821148591 U CN 201821148591U CN 208768491 U CN208768491 U CN 208768491U
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CN
China
Prior art keywords
loading head
sieve
punching disk
plane loading
air
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Expired - Fee Related
Application number
CN201821148591.7U
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Chinese (zh)
Inventor
任述光
陈赛
朱羽帅
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Hunan Agricultural University
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Hunan Agricultural University
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Priority to CN201821148591.7U priority Critical patent/CN208768491U/en
Application granted granted Critical
Publication of CN208768491U publication Critical patent/CN208768491U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the cleaning equipments of granular material, the structure of especially a kind of air-and-screen cleaner is improved, including rack, punching disk inclined sieve, inclined-plane loading head, lifter, feeding hopper, scourclean, it is characterized in that, punching disk inclined sieve is located above inclined-plane loading head, punching disk inclined sieve bottom surface is contacted with inclined-plane loading head upper surface, vertical transition axis is fixedly connected with and passes through the inclined-plane of inclined-plane loading head with punching disk inclined sieve center, vertical transition axis bottom end is connected on the rack by the first rolling bearing, vertical transition axis is driven by first driving device to be rotated, scourclean is below inclined-plane loading head, beneficial effect is that this patent has structure simple, it is compact-sized, it is small in size, it is light-weight, cleaning efficiency is high, percentage of impurity is low, it has a extensive future as combined harvester cleaning plant.

Description

A kind of air-and-screen cleaner
Technical field
The present invention relates to the cleaning equipment of granular material, the structure of especially a kind of air-and-screen cleaner is improved.
Background technique
Currently, for the dressing mechanism on rape combined harvester improved by rice wheat combine harvester mostly, Since siliqua of oilseed rape maturity difference is big, the unique biological characteristics such as silique crack resistance difference cause percentage of impurity generally higher, warp Culm length is high in the emersion object obtained after threshing, and diameter is big, while stalk moisture content is high when the harvesting of field, causes to clean difficulty Greatly, the high feature of the rate that causes damages.Cleaning plant is the important component of combined harvester, the harvesting loss rate of agricultural material It is largely focused on header loss and cleaning loss, and cleaning loss accounts for significant proportion, while cleaning and influencing agricultural material The clean rate of harvest, so solving the problems, such as that agricultural material cleaning is the key that crop harvesting.
Currently, the cleaning plant type being widely used is more, mainstream has been cleaned: Winnowing type, vibration sieve type, air flow cleaning cylinder Formula.Grain cleaning rate compared with the advantage that high, loss late is small, adaptable, is at home and abroad widely applied in Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve.Make The type for the combined harvester cleaned with Winnowing type is larger, since southern region of China field is small, based on hills, so large-scale Agricultural machinery cannot adapt to the agriculture requirement of south intensive cultivation very well, cause south China rape mechanical harvest rate lower, until The present fails preferably to be solved.Simultaneously to a kind of Type Airflow Rice-Wheat Cleaning Apparatus with Centrifugal Fan-Oscillating Sieve experimental bench, appear in will appear greatly in watering and separation procedure Miscellaneous remaining blocking blanking port and sorting screen surface small miscellaneous remaining clean rate and grain loss rate has an impact to cleaning in watering and separation procedure.
Summary of the invention
It is an object of the invention to solve existing technical problem: existing defect in view of the prior art passes through structure It improves, proposes a kind of to clean the good rotation screening of effect and the air-and-screen cleaner cleaned of centrifugal flow.
In order to solve the above technical problems, air-and-screen cleaner of the invention, including rack, punching disk inclined sieve, inclined-plane Loading head, lifter, feeding hopper, scourclean, which is characterized in that punching disk inclined sieve is located above inclined-plane loading head, punching Disk inclined sieve bottom surface is contacted with inclined-plane loading head upper surface, vertical transition axis be fixedly connected with punching disk inclined sieve center and Across the inclined-plane of inclined-plane loading head, vertical transition axis bottom end is connected on the rack by the first rolling bearing, and vertical transition axis is logical It crosses first driving device and drives rotation, scourclean is below inclined-plane loading head, scourclean feed inlet and inclined-plane loading head discharge port Connection, the scourclean medium position are provided with selection by winnowing mouth, and selection by winnowing mouth is connect with suction pipe, and suction pipe and centrifugal blower connect It connects, centrifugal blower is driven by the second driving device, and lifter is located in the rack by punching disk inclined sieve, and feeding hopper is fixed In lifter feed end.
Further, punching disk inclined sieve is by underlying rigid vertical circumference board group back taper sieve and be located above At being provided with big miscellaneous remaining discharge hole on vertical circumference plate.
Further, first driving device and the second driving device are belt transmission structure, and first driving device is connected with the Two bevel gears, second bevel gear are arranged vertically and are intermeshed with first bevel gear, and first bevel gear is fixed on vertical transition axis Top.
Further, lifter is S type, lifter discharge end 30mm to 40mm above punching disk inclined sieve.
Further, scourclean both ends are contraction mouth.
The utility model has the advantages that
First, this patent is because change the design that screening sequence, selection by winnowing sequence and blanking distance are 30mm to 40mm, abjection Material is elevated device through feeding hopper and is transported to punching disk inclined sieve, and abjection material rebounds back and forth in punching disk inclined sieve, together The centrifugal rotation of Shi Chongkong disk inclined sieve acts on, make it is big it is miscellaneous it is remaining separated from seed, by big miscellaneous remaining discharge hole and punching disk It is come out above inclined sieve, avoids big miscellaneous remaining blocking compass screen surface and lifter discharge end.
Second, this patent compares other selection by winnowing cylinders, and material is through inclined-plane loading head to scourclean, in dropping process, warp After from top to bottom and from the bottom up, different directions air-flow cleans effect twice, achievees the purpose that second wind election, realizes that energy consumption is small, imitates Rate is high, and it is good to clean effect.
Third, this patent have structure simple, compact-sized, small in size, light-weight, and cleaning efficiency is high, percentage of impurity is low, use Make combined harvester cleaning plant to have a extensive future.
Detailed description of the invention
Fig. 1 is general structure schematic diagram of the present invention;
Fig. 2 is overall structure schematic top plan view of the present invention;
Fig. 3 is punching disk inclined sieve schematic diagram;
Fig. 4 is velocity contour;
Fig. 5 is velocity vector distribution map;
In figs. 1 to 3,1, rack, 2, punching disk inclined sieve, 2.1, rigid conical screen, 2.2, vertical circumference plate, 2.3, big miscellaneous remaining discharge hole, 3, inclined-plane loading head, 4, lifter, 5, feeding hopper, 6, scourclean, 7, vertical transition axis, 8, first Rolling bearing, 9, first driving device, 10, centrifugal blower, the 11, second driving device, 12, second bevel gear, the 13, first cone tooth Wheel, 14, suction pipe.
Specific embodiment
Further explanation is made to this patent with reference to the accompanying drawing,
In figs. 1 to 3, this air-and-screen cleaner, including rack 1, punching disk inclined sieve 2, inclined-plane loading head 3, Lifter 4, feeding hopper 5, scourclean 6, which is characterized in that punching disk inclined sieve 2 is located at 3 top of inclined-plane loading head, punching circle 2 bottom surface of disk inclined sieve is contacted with 3 upper surface of inclined-plane loading head, and vertical transition axis 7 is fixedly connected with 2 center of punching disk inclined sieve And the inclined-plane of inclined-plane loading head 3 is passed through, vertical 7 bottom end of transition axis is connected in rack 1 by the first rolling bearing 8, vertical mistake It crosses axis 7 and rotation is driven by first driving device 9, scourclean 6 is below inclined-plane loading head 3,6 feed inlet of scourclean and inclined-plane collection The connection of 3 discharge port of glassware, 6 medium position of scourclean are provided with selection by winnowing mouth, and selection by winnowing mouth is connect with suction pipe 14, suction pipe 14 connect with centrifugal blower 10, and centrifugal blower 10 is driven by the second driving device 11, and lifter 4 is located at punching disk inclined sieve In the rack 1 on 2 sides, feeding hopper 5 is fixed on 4 feed end of lifter.
Further, the vertical circumference that punching disk inclined sieve 2 is sieved 2.1 and be located above by underlying rigid back taper Plate 2.2 forms, and big miscellaneous remaining discharge hole 2.3 is provided on vertical circumference plate 2.2.
Further, first driving device 9 and the second driving device 11 are belt transmission structure, and first driving device 9 connects There is second bevel gear 12, second bevel gear 12 is arranged vertically and is intermeshed with first bevel gear 13, and first bevel gear 13 is fixed At vertical 7 top of transition axis.
Further, lifter 4 is S type, 4 discharge end of lifter 30mm to 40mm above punching disk inclined sieve 2.
Further, 6 both ends of scourclean are contraction mouth.
First driving device 9 drives punching disk inclined sieve 2 to rotate, and big miscellaneous remaining, punching circle is filtered out using centrifugal principle The vertical circumference plate 2.2 of disk inclined sieve 2 is located higher than inverted cone and sieves 2.1 faces, during impurities removal, the big miscellaneous remaining vertical circumference of shock Plate 2.2, separates from seed, to reduce loss late.
6 medium position of scourclean, which is provided with selection by winnowing mouth, to be made to form air-flow from top to bottom and from bottom to top in scourclean 6, to object Material realizes second wind election, and 6 both ends of scourclean are contraction mouth, and air-flow velocity will increase, and miscellaneous remaining can go leaving of not cleaning is small Except clean, achieve the effect that improve clean rate.
As shown in figure 4, analyzing airflow field using Fluent15.0,6 interior air-flow field pattern of scourclean is obtained;Such as Fig. 5 institute Show, is 6 interior air-flow field vector figure of scourclean, Cong Tuzhong is it is clear that form both direction up and down, flow direction in scourclean 6 The wind speed 5m/s to 8m/s of centre exit, reaches design requirement;Cleaning efficiency is better than single air flow cleaning cylinder 6, in seed process In, it is small miscellaneous remaining to be gone out by selection by winnowing by centre exit;The miscellaneous remaining meeting of remainder be fallen with seed, can be upward in dropping process Air-flow is isolated, and realizes less energy consumption, and cleaning efficiency is high, cleans the good purpose of effect;Furthermore vortex is formed in the middle part of scourclean, so that It is more preferable to clean effect.

Claims (5)

1. a kind of air-and-screen cleaner, including rack, punching disk inclined sieve, inclined-plane loading head, lifter, feeding hopper, clean Cylinder, which is characterized in that punching disk inclined sieve is located above inclined-plane loading head, punching disk inclined sieve bottom surface and inclined-plane loading head Upper surface contact, vertical transition axis are fixedly connected with and pass through the inclined-plane of inclined-plane loading head with punching disk inclined sieve center, vertically Transition axis bottom end is connected on the rack by the first rolling bearing, and vertical transition axis is driven by first driving device to be rotated, clearly Select cylinder below inclined-plane loading head, scourclean feed inlet is connect with inclined-plane loading head discharge port, and the scourclean medium position is opened There is selection by winnowing mouth, selection by winnowing mouth is connect with suction pipe, and suction pipe is connect with centrifugal blower, and centrifugal blower passes through the second driving device Driving, lifter are located in the rack by punching disk inclined sieve, and feeding hopper is fixed on lifter feed end.
2. a kind of air-and-screen cleaner according to claim 1, which is characterized in that punching disk inclined sieve is by being located below Rigid back taper sieve and the vertical circumference board group that is located above at being provided with big miscellaneous remaining discharge hole on vertical circumference plate.
3. a kind of air-and-screen cleaner according to claim 2, which is characterized in that first driving device and the second driving dress It is set to belt transmission structure, first driving device is connected with second bevel gear, and second bevel gear is arranged vertically with first bevel gear And be intermeshed, first bevel gear is fixed at the top of vertical transition axis.
4. a kind of air-and-screen cleaner according to claim 3, which is characterized in that lifter is S type, lifter discharge end Above punching disk inclined sieve, blanking distance is 30mm to 40mm.
5. a kind of air-and-screen cleaner according to claim 4, which is characterized in that scourclean both ends are contraction mouth.
CN201821148591.7U 2018-07-19 2018-07-19 A kind of air-and-screen cleaner Expired - Fee Related CN208768491U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821148591.7U CN208768491U (en) 2018-07-19 2018-07-19 A kind of air-and-screen cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821148591.7U CN208768491U (en) 2018-07-19 2018-07-19 A kind of air-and-screen cleaner

Publications (1)

Publication Number Publication Date
CN208768491U true CN208768491U (en) 2019-04-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108886975A (en) * 2018-07-19 2018-11-27 湖南农业大学 A kind of air-and-screen cleaner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108886975A (en) * 2018-07-19 2018-11-27 湖南农业大学 A kind of air-and-screen cleaner

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190423

Termination date: 20200719