CN101406120B - Bifurcate clapboard seed-scraping device of circular tube gas absorption seed metering device - Google Patents
Bifurcate clapboard seed-scraping device of circular tube gas absorption seed metering device Download PDFInfo
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- CN101406120B CN101406120B CN2008101721187A CN200810172118A CN101406120B CN 101406120 B CN101406120 B CN 101406120B CN 2008101721187 A CN2008101721187 A CN 2008101721187A CN 200810172118 A CN200810172118 A CN 200810172118A CN 101406120 B CN101406120 B CN 101406120B
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- seed
- clapboard
- wedge
- shaped plate
- bifurcated
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Abstract
The invention provides a forked wedge-shaped plate seed pushing device for a tube air-suction seeding machine. A wedge-shaped plate has a notch. A thin side of the wedge-shaped plate is in axial and parallel contact with the surface of a seed tube. The notch of the wedge-shaped plate is aligned with a seed suction hole. The forked wedge-shaped plate is fixed on a machine frame to replace a seed pushing rubber strip. When seeds sucked on the seed suction hole of a seed suction tube rotate to the thin side of the wedge-shaped plate, seeds at two sides contact two forks of the wedge-shaped plate. With the rotation of the tube, seeds are driven to move downward and are lifted away from the seed suction hole by the surface of the forked wedge-shaped plate to a certain height at which the suction force is so small as to allow the seeds to escape from the seed suction hole and fall into a seed receiving funnel. The seed pushing device has the advantages of avoiding damages to seeds due to no shearing effect generated in a seed pushing process and reducing the possibility of blockage of the seed suction hole.
Description
Affiliated technical field
The present invention relates to the agricultural production sower, particularly adopt the sower of circular pipe type aspiration seeding unit.
Background technology
(patent No.: the circular tube air-suction seeding unit that 200410046058.6) is proposed adopts rubber strip to scrape kind to national inventing patent " the dual-purpose circular pipe type air-suction seed-sowing device of corn wheat ", when being actually used in the sowing of large seeds such as corn, rubber strip is scraped kind of device and is had significantly wound kind of a phenomenon, when particularly the plumule of seed part sucks in the suction hole just, the shear action of rubber strip may be cut away the seed plumule, not only influence emergence rate, and the plumule that cuts off can stop up suction hole, causes this hole to continue broadcast leakage.
Summary of the invention
The present invention proposes a kind of bifurcated clapboard and scrapes kind of a device.
Main technical schemes of the present invention is: width equal to inoculate funnel width, length on concrete installation need to decide, the flat board of thickness 5-8mm, an end is processed into wedge shape, about chamfer length 2cm.Process the gap of width 4mm from wedge shape one end along dull and stereotyped line of symmetry to thick end side, get final product about gap degree of depth 2cm, formed the bifurcated clapboard.Gap can be wide, is with gradient better (the wide 4mm of thin end gap, thick end is punctured into 3mm) slightly.
Main points are installed: this bifurcated clapboard is fixed on the frame, and the position is in seeding pipe seeds fall position (inoculation funnel top), replaces and scrapes kind of a rubber strip.The featheredge of bifurcated clapboard contacts with the surperficial axially parallel of seeding pipe, and the gap and the suction hole of clapboard align.
Work overview of the present invention is: when the seed of inhaling suction hole absorption above kind of the pipe turns to inoculation funnel top, the seed both sides in advance with two branch fork contact of fork clapboard.Along with pipe rotates, seed is driven motion downwards, and seed is bifurcated the clapboard surface and has been lifted away from suction hole, and lifting to certain altitude will break away from suction hole and drop to the inoculation funnel because of suction diminishes.
Beneficial effect of the present invention: scraping in kind of the process does not have shear action, has eliminated and has hindered kind of a problem, has reduced the suction hole possibility of jamming.
Description of drawings
Fig. 1 is front view and the left view that the bifurcated clapboard is scraped kind of device.
Fig. 2 is front view and the left view that the bifurcated clapboard is scraped the position relation of kind of device and seeding pipe and inoculation funnel.
Fig. 3 utilizes the bifurcated clapboard of the upper edge formation of sealing of hole arc plate to scrape kind of device and location diagram.
Fig. 4 utilizes the bifurcated clapboard of the upper edge formation of inoculation funnel to scrape kind of device and location diagram.
Among the figure, gap 1, wedge-like portion 2, bifurcated clapboard 3, installing hole 4, inoculation funnel 5, suction hole 6, the seed 7 of absorption, seeding pipe 8, the seed 9 that falls through the wedge shape inclined-plane, sealing of hole arc plate 10, inoculation funnel upper edge 11.
Embodiment
Fig. 2 has shown front view and the left view of bifurcated clapboard 3 with seeding pipe 8 and inoculation funnel 5 positions relation, and this is the most basic application form.If processing conditions allows, can be processed into and the identical radian of seeding pipe 8 outer surfaces with the contact wedge-shaped surface of that side of seeding pipe 8, two cambered surfaces closely contact during installation.For broken seed or the foreign material of diameter less than 3mm, the inclined-plane that is bifurcated clapboard owing to failing less than the gap width is wiped off like this, when turning to the gap bottom, also can be wiped off in the mode of shearing by the gap bottom.
Fig. 3 has shown that the upper edge of the sealing of hole arc plate 10 that utilizes seeding pipe bottom forms the end view of the wedge-like portion 2 of bifurcated clapboard 3, has saved independent bifurcated clapboard.This section cambered surface of seeding pipe between kind of case and seeds scraper do not have seed shutoff suction hole 6, in order to reduce gas leakage, to keep negative pressure, used the suction hole of 10 shutoff free time of sealing of hole arc plate.Wedge shape and open and clear mouth are processed in the upper edge of sealing of hole arc plate 10, just can realize kind of the function of scraping of equivalence.
Fig. 4 has shown kind of the inclined-plane of scraping of upper edge 11 formations of utilizing the inoculation funnel to contact a side with the seeding pipe, also can realize the basic effect of bifurcated clapboard.
Claims (3)
1. a bifurcated clapboard that is used for the circular tube air-suction seeding unit is scraped kind of a device, it is characterized by: width is close with inoculation funnel width, length on concrete installation need to decide, the flat board of thickness 5-6mm, one end is processed into wedge shape, about chamfer length 2cm, process the gap of width 4mm to thick end side from wedge shape one end along dull and stereotyped line of symmetry, about gap degree of depth 2cm.
2. bifurcated clapboard according to claim 1 is scraped kind of a device, it is characterized by: the bifurcated clapboard is installed on the frame, and the bifurcated clapboard maintained static when the seeding pipe rotated.
3. bifurcated clapboard according to claim 1 is scraped kind of a device, it is characterized by: the featheredge of bifurcated clapboard contacts with the surperficial axially parallel of seeding pipe, and the gap and the suction hole of clapboard align.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101721187A CN101406120B (en) | 2008-11-11 | 2008-11-11 | Bifurcate clapboard seed-scraping device of circular tube gas absorption seed metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101721187A CN101406120B (en) | 2008-11-11 | 2008-11-11 | Bifurcate clapboard seed-scraping device of circular tube gas absorption seed metering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101406120A CN101406120A (en) | 2009-04-15 |
| CN101406120B true CN101406120B (en) | 2010-12-29 |
Family
ID=40569511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101721187A Expired - Fee Related CN101406120B (en) | 2008-11-11 | 2008-11-11 | Bifurcate clapboard seed-scraping device of circular tube gas absorption seed metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101406120B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103733782A (en) * | 2014-01-13 | 2014-04-23 | 河北农业大学 | Upside-down type circular tube pneumatic seed-metering device of precision planter |
| CN106879283A (en) * | 2017-02-17 | 2017-06-23 | 山东省农业机械科学研究院 | Pneumatic drum type feed mechanism for seed multistage cleaning device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4579251A (en) * | 1982-10-16 | 1986-04-01 | Heinrich Gugenhan | Separator for pneumatic single grain sowing machines |
| CN1703945A (en) * | 2004-06-03 | 2005-12-07 | 河北农业大学 | Corn and wheat dual-purpose round duct type air sucking seeding device |
| CN2798530Y (en) * | 2005-05-16 | 2006-07-26 | 华中农业大学 | Seed-pushing scraper suitable for no-tillage planter |
| CN201365407Y (en) * | 2008-11-11 | 2009-12-23 | 河北农业大学 | Bifurcated wedge-shaped plate seed-scraping device for circular tube air-sucking seed-metering device |
-
2008
- 2008-11-11 CN CN2008101721187A patent/CN101406120B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4579251A (en) * | 1982-10-16 | 1986-04-01 | Heinrich Gugenhan | Separator for pneumatic single grain sowing machines |
| CN1703945A (en) * | 2004-06-03 | 2005-12-07 | 河北农业大学 | Corn and wheat dual-purpose round duct type air sucking seeding device |
| CN2798530Y (en) * | 2005-05-16 | 2006-07-26 | 华中农业大学 | Seed-pushing scraper suitable for no-tillage planter |
| CN201365407Y (en) * | 2008-11-11 | 2009-12-23 | 河北农业大学 | Bifurcated wedge-shaped plate seed-scraping device for circular tube air-sucking seed-metering device |
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| Publication number | Publication date |
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| CN101406120A (en) | 2009-04-15 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20121111 |