CN201690766U - Air-suction type precision seed extractor - Google Patents
Air-suction type precision seed extractor Download PDFInfo
- Publication number
- CN201690766U CN201690766U CN2010202534481U CN201020253448U CN201690766U CN 201690766 U CN201690766 U CN 201690766U CN 2010202534481 U CN2010202534481 U CN 2010202534481U CN 201020253448 U CN201020253448 U CN 201020253448U CN 201690766 U CN201690766 U CN 201690766U
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- CN
- China
- Prior art keywords
- negative pressure
- air
- type precision
- sealing ring
- seed
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an agricultural seeder, in particular to an air-suction type precision seed extractor used for an air-suction type precision seeder. The air-suction type precision seed extractor mainly consists of a negative pressure cavity and a seed sucking disc, and the seed sucking disc is connected with a spindle arranged on the negative pressure cavity so as to match with the end surface of the negative pressure cavity. The air-suction type precision seed extractor is characterized in that the end surface of the negative pressure cavity is provided with a sealing ring, and then the seed sucking disc is in friction fit with the sealing ring during rotation. The air-suction type precision seed extractor has the advantages that the seed extractor resolves the problem of negative pressure loss of a contact clearance between the seed sucking disc and the negative pressure cavity, reduces power consumption, is tight and reliable in negative pressure sealing and stable in use property, and further increases precision seed extraction quality and stability.
Description
Technical field
The utility model relates to a kind of agricultural seeding machine, the air-sucking type precision weighing seed implement that uses on particularly a kind of air inhaling type fine sowing machine.
Technical background
At present, the precise hole sowing machine has occupied most shares on air inhaling type fine sowing machine and the air-sucking type film in the seeding operation of the precision agriculture of China, no matter and from technical elements, still from the aspect of performance of facility, comparative maturities all.The core technology of these two kinds of facility all concentrates on the air-sucking type precision weighing seed implement.The air-sucking type precision weighing seed implement of conventional art is to utilize getting in kind of the process of negative pressure at seeds sucker (with the metal disk in some holes), seeds sucker is located at the end face of vacuum cavity, the two frictional fit is rotated and is got kind, during use, at vacuum cavity and fill between kind of the seat.Because the circular contact-making surface between seeds sucker and the vacuum cavity is narrow, seeds sucker rotates the gap that must leave appropriateness, and the annular contact surface when causing work between seeds sucker and the vacuum cavity produces inevitable negative pressure loss.In practice, negative pressure is lost when not serious, can strengthen power consumption and normally get kind of a demand with what obtain that enough negative pressure satisfy seeds sucker; If this negative pressure is lost when serious, though strengthen that power consumption also is difficult to satisfy seeds sucker normally get kind, cause whole facility normally to use.For many years, the sealing problem is effectively solved always, and the inventor is by being designed to disc-shape with seeds sucker, though obtain good effect, but still have negative pressure loss problem, and then the loss energy.
The utility model content
The purpose of this utility model is to address the above problem, and the air-sucking type precision weighing seed implement that a kind of negative-pressure sealing is tight reliably, serviceability is stable is provided.
The purpose of this utility model is achieved in that
The utility model mainly is made up of vacuum cavity, seeds sucker, and seeds sucker cooperates with the vacuum cavity end face by the main shaft connection that is arranged on the vacuum cavity, on the end face of vacuum cavity sealing ring is set, and makes when seeds sucker rotates and the sealing ring frictional fit; The opposite position that sealing ring is set on the vacuum cavity end face is provided with cannelure, and sealing ring is embedded in the cannelure; Described sealing ring adopts O-ring seals.
The advantage of the utility model technology: solved the negative pressure loss of contact gap between seeds sucker and the vacuum cavity, reduced power consumption; Negative-pressure sealing is tightly reliable, serviceability is stable, has further improved the smart quality and the stability of planting of measuring.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is that the master of the utility model air-sucking type precision weighing seed implement looks cutaway view;
Fig. 2 is the A-A cutaway view of accompanying drawing 1;
Fig. 3 is the P part of O shape sealing ring installation diagram of accompanying drawing 1;
Fig. 4 is the P part dihedral sealing ring installation diagram of accompanying drawing 1.
Embodiment
As accompanying drawing 1-4 signal, the label among the figure is represented respectively: 1--voltage discharging area, 2--vacuum cavity, 3--main shaft, 4--bearing, 5--sealing ring, 6--embedding groove, 7--negative pressure through-hole, 8--kind case, 9--annular negative pressure cavity, 10--get kind of a chamber, 11--and enter kind of a hole, 12--seeds sucker, 13--and fill kind of a seat, 14--suction hole.
The utility model mainly is made up of vacuum cavity 2, seeds sucker 12, seeds sucker 12 cooperates with the vacuum cavity end face by main shaft 3 connections that are arranged on the vacuum cavity 2, sealing ring 5 is set on the end face of vacuum cavity 2, makes when seeds sucker 12 rotates and sealing ring 5 frictional fit; The opposite position that sealing ring 5 is set on vacuum cavity 2 end faces is provided with cannelure 6, sealing ring is embedded in the cannelure 6, this groove certainly is not set adopts the method for pasting can realize the object of the invention yet, but sealing ring is embedded in the cannelure 6 from structure relatively rationally; Described sealing ring adopts O-ring seals 5, can be a kind of tubulose totally enclosed type elastic rubber tube, and obviously, also can adopt section is the sealing ring of other shape.The center of vacuum cavity 2 is provided with bearing 4, and main shaft 3 is installed on bearing centre; The circumference of vacuum cavity 2 is provided with voltage discharging area 1, annular negative pressure cavity 9 and negative pressure through-hole 7; The circumference of circular seeds sucker 12 is provided with suction hole 14, and suction hole 14 communicates with annular negative pressure cavity 9, negative pressure through-hole 7; During use, also need to install and fill kind of seat 13, be provided with kind of case 8 on kind of the seat 13, enter kind of hole 11, get kind of chamber 10 filling.During work, the peripheral hardware negative pressure pump communicates with negative pressure through-hole 7, and the air at suction hole 14 places is continuously taken away from negative pressure through-hole 7 by negative pressure pump by annular negative pressure cavity 9 and produced suction.Main shaft 3 rotates and drives seeds sucker and rotates under the drive of peripheral hardware transmission.Seed by kind of case 8 enter fill kind of seat 13 get kind of chamber after, be adsorbed on the suction hole 14 and and rotate with the zone of the annular negative pressure cavity 9 of seeds sucker 12 on vacuum cavity 2, when the seed that is adsorbed turns to voltage discharging area 1, communicate with atmosphere and lose suction owing to suction hole 14 produces annular negative pressure cavity 9, seed just falls under the operation of deadweight.Because the contact-making surface between seeds sucker 12 and vacuum cavity 2 is provided with elastic seal ring, makes seeds sucker 12 be close on the sealing ring and rotates that the contact gap of the two obviously reduces, thereby reduced power consumption, improved the smart quality and stability of planting of measuring.
Though below design and example according to the utility model purpose have been done to elaborate with reference to accompanying drawing; but those of ordinary skills can recognize; under the precondition that does not break away from the claim limited range; still can make various improvement and conversion to the utility model, and this improvement and conversion still should belong to protection domain of the present utility model.
Claims (3)
1.
A kind of air-sucking type precision weighing seed implement, mainly be made up of vacuum cavity, seeds sucker, seeds sucker cooperates with the vacuum cavity end face by the main shaft connection that is arranged on the vacuum cavity, it is characterized in that, on the end face of vacuum cavity, sealing ring is set, makes when seeds sucker rotates and the sealing ring frictional fit.
2.
Air-sucking type precision weighing seed implement according to claim 1 is characterized in that the opposite position that sealing ring is set is provided with cannelure on the vacuum cavity end face, sealing ring is embedded in the cannelure.
3.
Air-sucking type precision weighing seed implement according to claim 1 is characterized in that, described sealing ring adopts O-ring seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202534481U CN201690766U (en) | 2010-07-09 | 2010-07-09 | Air-suction type precision seed extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202534481U CN201690766U (en) | 2010-07-09 | 2010-07-09 | Air-suction type precision seed extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201690766U true CN201690766U (en) | 2011-01-05 |
Family
ID=43391999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202534481U Expired - Fee Related CN201690766U (en) | 2010-07-09 | 2010-07-09 | Air-suction type precision seed extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201690766U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102273345A (en) * | 2011-06-30 | 2011-12-14 | 云南省机械研究设计院 | Vacuum adsorption type plug tray seedling raising precision seed planter |
| CN102273343A (en) * | 2011-06-28 | 2011-12-14 | 陈恒 | Inner gear transmitting pneumatic hole seeding apparatus |
| CN102365914A (en) * | 2011-09-08 | 2012-03-07 | 华南农业大学 | Seed suction disk with rapid transforming holes and seeder |
| CN104067737A (en) * | 2014-03-26 | 2014-10-01 | 淮海工学院 | Pneumatic blockage-preventing and seed-leakage-free plug seedling and precision seed arrangement method and device |
| CN106051165A (en) * | 2016-06-20 | 2016-10-26 | 山东省农业机械科学研究院 | Flexible fit seal ring for air-suction seed metering device |
-
2010
- 2010-07-09 CN CN2010202534481U patent/CN201690766U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102273343A (en) * | 2011-06-28 | 2011-12-14 | 陈恒 | Inner gear transmitting pneumatic hole seeding apparatus |
| CN102273343B (en) * | 2011-06-28 | 2013-05-01 | 陈恒 | Inner gear transmitting pneumatic hole seeding apparatus |
| CN102273345A (en) * | 2011-06-30 | 2011-12-14 | 云南省机械研究设计院 | Vacuum adsorption type plug tray seedling raising precision seed planter |
| CN102365914A (en) * | 2011-09-08 | 2012-03-07 | 华南农业大学 | Seed suction disk with rapid transforming holes and seeder |
| CN104067737A (en) * | 2014-03-26 | 2014-10-01 | 淮海工学院 | Pneumatic blockage-preventing and seed-leakage-free plug seedling and precision seed arrangement method and device |
| CN104067737B (en) * | 2014-03-26 | 2016-06-15 | 淮海工学院 | A kind of blockage resisting is without leaking the Pneumatic type hole plate seedling growth precision metering device method and device planted |
| CN106051165A (en) * | 2016-06-20 | 2016-10-26 | 山东省农业机械科学研究院 | Flexible fit seal ring for air-suction seed metering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20170709 |