CN108464093A - Aspirated-air type plant planter gives up kind of retracting device - Google Patents
Aspirated-air type plant planter gives up kind of retracting device Download PDFInfo
- Publication number
- CN108464093A CN108464093A CN201810511778.7A CN201810511778A CN108464093A CN 108464093 A CN108464093 A CN 108464093A CN 201810511778 A CN201810511778 A CN 201810511778A CN 108464093 A CN108464093 A CN 108464093A
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- Prior art keywords
- useless
- chamber
- deposits
- seed
- room
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
-
- 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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using 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
- 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
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Sowing (AREA)
Abstract
The present invention relates to a kind of useless kind of the retracting devices of aspirated-air type plant planter, including：Useless kind is deposited kind of room and feed mechanism for seed deposits kind of a chamber；It deposits kind of a room both sides and is arranged with feed mechanism for seed for useless kind and deposit kind of a chamber；It deposits kind of chamber cap center for useless kind and is equipped with gross blow hole, gross blow hole both sides are equipped with symmetrical spilehole；Gross blow hole is connected with vacuum blower；Each feed mechanism for seed deposits kind of top of chamber and is equipped with useless kind of outlet, and two spileholes are separately connected useless kind of outlet of both sides；The useless kind of vacuum degree for depositing kind of room enters feed mechanism for seed by spilehole and deposits kind of a chamber, so that feed mechanism for seed is deposited useless kind of kind of chamber and can be inhaled into useless kind and deposits kind of a room；Each feed mechanism for seed, which is deposited kind of bottom of chamber portion and is equipped with, blows kind of a mouth, blows kind of a mouth and connects air pump by soft air pipe respectively；Feed mechanism for seed is inhaled into useless kind under the action of depositing useless kind of positive pressure and vacuum that are generated in air pump of kind of chamber and deposits kind of a room；Useless kind of thorough recycling is completed in the suction-operated for the vacuum degree that the booster action and vacuum blower that the present invention is blown kind using the positive pressure that air pump generates generate, can effectively solve the problems, such as clear kind of difficulty, clear kind it is remaining.
Description
Technical field：
The present invention relates to a kind of useless kind of the retracting devices of aspirated-air type plant planter.
Background technology：
For plant planter, kind of the retracting device that gives up is the indispensable device of cell precision planter and net germline
It unites important component, the quality of useless kind of retracting device directly affects the work quality of cell precision planter.Currently, cell is sowed
Useless kind of a retracting device for wound kind when clear kind of difficulty, clear kind of remnants and clear kind when machine works, some plant planter needs people
Clear kind of work, and useless kind of retracting device is complicated, causes the working efficiency of cell precision planter low.In addition, existing small
Largely useless kind of retracting device recovering effect is bad for area's precision planter, be easy to cause useless kind of blocking and adjusting is inconvenient, it is difficult to
Reach the requirement that cell precision planter is precisely sowed.Meanwhile it is also possible to causing miscegenation when sowing the seed of Different Crop.
Invention content：
In order to wound kind when kind of the retracting device clear kind of difficulty of solving to give up on existing cell precision planter, clear kind of remnants, clear kind,
The problems such as being easy to block, the present invention provides useless kind of the retracting devices on a kind of aspirated-air type plant planter.
The present invention makes full use of the suction-operated of vacuum blower vacuum degree and air pump to blow the booster action of kind, can guarantee clear kind
Rapid noresidue is completed useless kind and is thoroughly recycled.It is big by design diameter spilehole of different sizes, gross blow hole and cross-sectional area
Useless kind in air hole area is deposited kind of a chamber cap, is reached useless kind and is deposited at useless kind and in stable condition in kind of room is not easy to plug the beneficial of soft air pipe
Effect.Iron wire sieve is set and obstructs useless kind and other impurityes, the blocking of gross blow hole is effectively prevented, to ensure gross blow hole
It is unimpeded.
In order to achieve the above objectives, the present invention uses following technology：
A kind of useless kind of retracting device of aspirated-air type plant planter, including：Useless kind is deposited kind of room and feed mechanism for seed deposits kind of a chamber.
Described useless kind deposits kind of room for storing useless kind；Described useless kind deposits useless kind of the movable connection in kind of room and deposits kind of a chamber cap,
It deposits kind of chamber cap for useless kind and deposits kind of a room for useless kind for fixing seal；It deposits kind of a room both sides and is arranged with feed mechanism for seed for described useless kind and deposit kind of a chamber；Institute
Useless kind stated deposits kind of chamber cap center and is equipped with gross blow hole, and gross blow hole both sides are equipped with symmetrical spilehole；The gross blow hole and true
Empty wind turbine connection；Each feed mechanism for seed deposits kind of top of chamber and is equipped with useless kind of outlet, and two spileholes are separately connected useless kind of outlet of both sides；
The useless kind of vacuum degree for depositing kind of room enters feed mechanism for seed by spilehole and deposits kind of a chamber, and can be inhaled by so that feed mechanism for seed is deposited useless kind of kind of chamber by useless kind
Deposit kind of a room；Each feed mechanism for seed, which is deposited kind of bottom of chamber portion and is equipped with, blows kind of a mouth, blows kind of a mouth connection air pump；Feed mechanism for seed deposits useless kind of kind of chamber in air pump
It is inhaled into useless kind under the vacuum action that the positive pressure and vacuum blower of generation generate and deposits kind of a room；
Spilehole diameter described in two is equal；Air bore dia is more than spilehole；In the vacuum degree that vacuum blower generates
Under the action of, when air-flow deposits kind of chamber from feed mechanism for seed and enters useless kind through spilehole along soft air pipe and deposit kind of room, air-flow flow section moment
Increase, be inhaled into useless kind and deposit kind of indoor useless kind of the adsorption capacity being subject to and significantly reduce, making useless kind to deposit kind of an interior at useless kind has
Stability.
The gross blow hole is equipped with iron wire sieve；The mesh diameter of iron wire sieve is less than each useless kind of diameter, iron wire sieve
Useless kind and the barrier of other impurityes are deposited kind of an interior by net at useless kind, prevent useless kind and other impurityes suck threeway by vacuum blower
In turn result in current path blocking.
The gross blow hole, threeway, vacuum blower, feed mechanism for seed are deposited kind to be connected by soft air pipe between chamber and air pump.
Beneficial effects of the present invention：
The absorption for the vacuum degree that the present invention blows the booster action of kind using the positive pressure that air pump generates and vacuum blower generates is made
With the thorough recycling for completing useless kind, can effectively solve the problems, such as clear kind of difficulty, clear kind it is remaining.
Absorption of the present invention using air-flow to useless kind makes useless kind to enter useless kind through spilehole along soft air pipe and deposits kind of a room, can
Useless kind is not damaged when ensureing clear kind.
The present invention is equipped with iron wire sieve on gross blow hole, and deposit indoor useless kind of kind by useless kind exists with the larger impurity of volume
Barrier can effectively solve the problem that useless kind is inhaled into the larger impurity of volume at iron wire sieve end off the net under vacuum blower suction-operated
The problem of wind turbine is so as to cause blocking.
Description of the drawings：
Fig. 1 is overall structure figure of the present invention (arrow direction is the direction of gas flowing)
Fig. 2 is the useless kind of axonometric drawing for depositing kind of room of the present invention
Fig. 3 is the useless kind of front view for depositing kind of chamber cap of the present invention
Fig. 4 is the useless kind of vertical view for depositing kind of chamber cap of the present invention
In figure：1, spilehole 2, gross blow hole 3, useless kind deposit kind of room 4, useless kind deposit kind of chamber cap 5, bolt 6, iron wire sieve 7, threeway
8, vacuum blower 9, air pump 10, feed mechanism for seed deposit kind of a chamber
Specific implementation mode：
Embodiment 1：
A kind of useless kind of retracting device of aspirated-air type plant planter, composition include：Useless kind deposit kind of room 3, useless kind deposit kind of a chamber cap
4, bolt 5, iron wire sieve 7.
Described useless kind deposits kind of room 3 for storing useless kind；Described useless kind deposits 4 center of kind of chamber cap and is equipped with gross blow hole 2；Air
2 both sides of hole are equipped with symmetrical spilehole 1；The gross blow hole 2 is connected for 8 mouthfuls by threeway 7 with vacuum blower, gross blow hole 2, three
It is logical to be connected using soft air pipe between 7 and 8 mouthfuls of vacuum blower, to enable the vacuum degree that vacuum blower 8 generates to enter through threeway 7
Useless kind is deposited kind of room 3, convenient for vacuum blower is constantly useless kind and is deposited the environment that kind of room 3 provides vacuum；Two spileholes 2 pass through respectively
Soft air pipe connects useless kind of the outlet end that a feed mechanism for seed deposits kind of chamber 10, and the useless kind of vacuum degree for depositing kind of room 3 can be deposited into feed mechanism for seed
Kind of chamber 10, feed mechanism for seed, which deposits useless kind of kind of chamber 10 and can be inhaled into useless kind, deposits kind of room 3；Kind of the mouth that blows that feed mechanism for seed deposits kind of chamber 10 passes through soft gas
Pipe is connected with air pump 9, and feed mechanism for seed deposits useless kind of kind of chamber 10 under the air blast effect for the positive pressure that air pump 9 generates in loose shape
State, is more conducive to useless kind and is inhaled into useless kind along soft air pipe to deposit kind of room 3.Two feed mechanism for seeds, which deposit kind of chamber 10 and are symmetricly set on useless kind, deposits kind
3 both sides of room.
Described useless kind is deposited that kind of chamber cap 4 is movable to be fixed on useless kind and deposit on kind of room 3, plays the role of fixing seal；It is described
1 diameter of spilehole is equal；2 diameter of gross blow hole is more than spilehole 1；The useless kind of cross-sectional area for depositing kind of chamber cap 4 is more than gross blow hole 2
Area；Under the action of the vacuum degree that vacuum blower 8 generates, air-flow is deposited kind of chamber from feed mechanism for seed and is entered through spilehole along soft air pipe
Useless kind when depositing kind of room 3, airflow sectional area moment increases, to be inhaled into described useless kind deposit useless kind in kind of room 3 by
Adsorption capacity significantly reduce, making useless kind to be deposited at useless kind has stability in kind of room 3.
The gross blow hole 2 is equipped with iron wire sieve 7；The mesh diameter of iron wire sieve 7 is less than useless kind of diameter, iron wire sieve
7 can deposit useless kind and the barrier of other impurityes in kind of room 3 at useless kind, prevent useless kind and other impurityes are sucked by vacuum blower 8
Threeway 7 in turn results in current path blocking.
Embodiment 2：
Useless kind is deposited useless kind of the storage of kind of room 3；Useless kind of the gross blow hole 2 deposited on kind of chamber cap 4 is connected with the stomata of threeway with soft air pipe,
The other side stomata of threeway 7 is connected for 8 mouthfuls with vacuum blower with soft air pipe, to enable vacuum blower 8 generate vacuum degree through
Threeway 7 enters useless kind and deposits kind of room 3, convenient for vacuum blower 8 is constantly useless kind and deposits the environment that kind of room 3 provides vacuum；Useless kind is deposited kind
Useless kind of the outlet end that spilehole on chamber cap 4 deposits kind of chamber with feed mechanism for seed is connected with soft air pipe, and the useless kind of vacuum degree for depositing kind of room can
Enter feed mechanism for seed by soft air pipe and deposit kind of a chamber, so for feed mechanism for seed deposit useless kind of kind of chamber be inhaled into useless kind deposit kind of a room provide it is closed and
Path with vacuum；Kind of the mouth that blows that feed mechanism for seed deposits kind of chamber 10 is connected with air pump 9 with soft air pipe, and feed mechanism for seed deposits useless kind of kind of chamber 10
It is in loose state under the air blast effect for the positive pressure that air pump generates, is more conducive to useless kind and is inhaled into useless kind along soft air pipe to deposit kind
Room 3.
Embodiment 3：
Useless kind is deposited kind of chamber cap 4, and being fastened on useless kind with bolt 5 deposits on kind of room 3, plays the role of fixing seal；It is deposited at useless kind
Plant the area that spilehole 1, gross blow hole 2 and the cross-sectional area that design diameter is of different sizes on chamber cap 4 are more than gross blow hole useless kind is deposited
Kind of chamber cap 4, when the air-flow that vacuum blower 8 generates enters useless kind through spilehole 1 deposits kind of room 3, airflow sectional area moment increases
Greatly, useless kind of the adsorption capacity being subject in kind of room 3 is deposited to being inhaled into described useless kind significantly to reduce, make useless kind to deposit kind at useless kind
There is stability in room 3.
Embodiment 4：
The bolt 5 of iron wire sieve 6 is fixed on useless kind of 2 end of gross blow hole for depositing kind of room 3, the diameter in 5 hole of iron wire sieve
Diameter than useless kind is small, to iron wire sieve 6 can will useless kind and the barrier of other impurityes under iron wire sieve 5, prevent useless kind and
Other impurityes suck threeway 7 by vacuum blower 8 and in turn result in current path blocking.
Embodiment 5：
Useless kind of retracting device is mounted in existing aspirated-air type plant planter rack, place of charging seed is located proximate to；Useless kind is deposited
Gross blow hole on kind of chamber cap is connected by soft air pipe with existing vacuum blower, will be given up and kind be deposited the spilehole on kind of chamber cap and pass through soft gas
Useless kind of the outlet end that pipe deposits kind of chamber with feed mechanism for seed is connected, and kind of the mouth that blows that air pump deposits kind of chamber by soft air pipe with feed mechanism for seed is connected.Clearly
When kind work, useless kind remains in feed mechanism for seed and deposits kind of a chamber.Vacuum blower 8 is opened, solenoid valve control threeway 7 deposits kind of room 3 with useless kind
Gross blow hole 2 is connected, and the vacuum degree that vacuum blower 8 generates makes entirely to deposit and be in vacuum state in kind of room 3 for useless kind, and useless kind is deposited kind of room 3
Vacuum degree a suction-operated is generated to useless kind in feed mechanism for seed 10 through soft air pipe by spilehole 1.Open air pump 9, air pump 9 simultaneously
The positive pressure of generation constantly deposits kind of chamber 10 through soft air pipe into feed mechanism for seed, blows useless kind that feed mechanism for seed is deposited in kind of chamber 10 and is in loose
State contributes to useless kind to deposit kind of room 3 for useless kind by vacuum degree sucking along soft air pipe.Feed mechanism for seed deposits useless kind in kind of chamber 10 in vacuum wind
Useless kind is inhaled into residue-free rapidly along soft air pipe to deposit in kind of room 3, complete useless under the double action that machine 8 adsorbs and air pump 9 is blown kind
Kind thoroughly recycles；It is more than 2 area of gross blow hole by design diameter gross blow hole 2 of different sizes, spilehole 1 and cross-sectional area
Useless kind of the kind chamber cap 4 deposited, under the action of the vacuum degree that vacuum blower 8 generates, air-flow is deposited kind of chamber from feed mechanism for seed and is passed through along soft air pipe
Spilehole enters useless kind when depositing kind of room 3, and air-flow flow section moment increases, and is inhaled into useless kind of useless kind of the suction being subject to for depositing kind of room 3
Attached power significantly reduces, and most useless kind sinks under the gravity of itself and deposit 3 bottom of kind of room at useless kind, gives up kind at useless kind
Depositing kind of room 3 has stability；In addition, iron wire sieve 6 is fixed on useless kind of 2 end of gross blow hole for depositing kind of room 3 with bolt 5, even if having
Useless kind of fraction and other impurityes have the trend that the gross blow hole 2 on kind of chamber cap 4 is deposited into useless kind, iron wire under strength effect
Sieve 6 can also avoid useless kind and be inhaled into air with other impurityes by useless kind and the barrier of other impurityes under iron wire sieve 6
In hole 2, gross blow hole 2 is caused to block, and then influences cell precision planter normal work.
The above is only the preferred embodiment of the application, is skilled artisans appreciate that or realizing this Shen
Please.This specific example is only explanation of the invention, is not limitation of the present invention, and the technical staff of one's respective area is reading
After complete this specification, can no creative contribution be made to this example as needed and changed, as long as but in the power of the present invention
The protection of Patent Law is all received in sharp claimed range.
Claims (4)
- Kind of the retracting device 1. a kind of aspirated-air type plant planter gives up, it is characterised in that：Including：Useless kind is deposited kind of room and feed mechanism for seed deposits kind Chamber；Described useless kind deposits kind of room for storing useless kind；Described useless kind is deposited that kind of room is movable to be connected with useless kind and deposit kind of a chamber cap, is given up Kind deposits kind of chamber cap and deposits kind of a room for useless kind for fixing seal；It deposits kind of a room both sides and is arranged with feed mechanism for seed for described useless kind and deposit kind of a chamber；It is described Useless kind deposit kind of chamber cap center and be equipped with gross blow hole, gross blow hole both sides are equipped with symmetrical spilehole；The gross blow hole and vacuum Wind turbine connects；Each feed mechanism for seed deposits kind of top of chamber and is equipped with useless kind of outlet, and two spileholes are separately connected useless kind of outlet of both sides；It is useless The vacuum degree for kind depositing kind of room enters feed mechanism for seed by spilehole and deposits kind of a chamber, so that feed mechanism for seed is deposited useless kind of kind of chamber and can be inhaled into useless kind and deposits Kind room；Each feed mechanism for seed, which is deposited kind of bottom of chamber portion and is equipped with, blows kind of a mouth, blows kind of a mouth connection air pump；Feed mechanism for seed deposits useless kind of kind of chamber in air pump production It is inhaled into useless kind under the vacuum action that raw positive pressure and vacuum blower generate and deposits kind of a room.
- Kind of the retracting device 2. a kind of aspirated-air type plant planter as described in claim 1 gives up, it is characterised in that：The spilehole Diameter is equal, and air bore dia is more than spilehole.
- Kind of the retracting device 3. a kind of aspirated-air type plant planter as described in claim 1 gives up, it is characterised in that：The gross blow hole It is equipped with iron wire sieve, the mesh diameter of iron wire sieve is less than each useless kind of diameter.
- Kind of the retracting device 4. a kind of aspirated-air type plant planter as described in claim 1 gives up, it is characterised in that：The air Hole, threeway, vacuum blower, feed mechanism for seed are deposited kind to be connected by soft air pipe between chamber and air pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810511778.7A CN108464093A (en) | 2018-05-25 | 2018-05-25 | Aspirated-air type plant planter gives up kind of retracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810511778.7A CN108464093A (en) | 2018-05-25 | 2018-05-25 | Aspirated-air type plant planter gives up kind of retracting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108464093A true CN108464093A (en) | 2018-08-31 |
Family
ID=63260629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810511778.7A Withdrawn CN108464093A (en) | 2018-05-25 | 2018-05-25 | Aspirated-air type plant planter gives up kind of retracting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108464093A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110073780A (en) * | 2019-05-29 | 2019-08-02 | 河南农业大学 | A kind of Cell wheel feed cleaning device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1597121A1 (en) * | 1986-06-10 | 1990-10-07 | Молдавский Научно-Исследовательский Институт Орошаемого Земледелия И Овощеводства | Pneumatic seeding apparatus |
| RU2010113679A (en) * | 2010-04-07 | 2011-10-20 | Федеральное государственное образовательное учреждение высшего профессионального образования "Алтайский государственный аграрный у | PNEUMATIC SOWING UNIT |
| CN202941128U (en) * | 2012-12-24 | 2013-05-22 | 中机美诺科技股份有限公司 | Full-automatic plot precision seeder |
| CN104444233A (en) * | 2014-11-27 | 2015-03-25 | 天津振兴水泥有限公司 | Dust cleaning device for belt conveyor belt surface |
| CN107710989A (en) * | 2017-11-28 | 2018-02-23 | 青岛理工大学 | A kind of aspirated-air type rice precise seeder |
| CN107744943A (en) * | 2017-11-30 | 2018-03-02 | 界首市鑫龙粮油机械加工有限公司 | A kind of oscillatory type cleaning sieve |
| CN208353889U (en) * | 2018-05-25 | 2019-01-11 | 山东农业大学 | Aspirated-air type plant planter gives up kind of recyclable device |
-
2018
- 2018-05-25 CN CN201810511778.7A patent/CN108464093A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1597121A1 (en) * | 1986-06-10 | 1990-10-07 | Молдавский Научно-Исследовательский Институт Орошаемого Земледелия И Овощеводства | Pneumatic seeding apparatus |
| RU2010113679A (en) * | 2010-04-07 | 2011-10-20 | Федеральное государственное образовательное учреждение высшего профессионального образования "Алтайский государственный аграрный у | PNEUMATIC SOWING UNIT |
| CN202941128U (en) * | 2012-12-24 | 2013-05-22 | 中机美诺科技股份有限公司 | Full-automatic plot precision seeder |
| CN104444233A (en) * | 2014-11-27 | 2015-03-25 | 天津振兴水泥有限公司 | Dust cleaning device for belt conveyor belt surface |
| CN107710989A (en) * | 2017-11-28 | 2018-02-23 | 青岛理工大学 | A kind of aspirated-air type rice precise seeder |
| CN107744943A (en) * | 2017-11-30 | 2018-03-02 | 界首市鑫龙粮油机械加工有限公司 | A kind of oscillatory type cleaning sieve |
| CN208353889U (en) * | 2018-05-25 | 2019-01-11 | 山东农业大学 | Aspirated-air type plant planter gives up kind of recyclable device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110073780A (en) * | 2019-05-29 | 2019-08-02 | 河南农业大学 | A kind of Cell wheel feed cleaning device |
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Application publication date: 20180831 |
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| WW01 | Invention patent application withdrawn after publication |