CN106051165A - Flexible fit seal ring for air-suction seed metering device - Google Patents
Flexible fit seal ring for air-suction seed metering device Download PDFInfo
- Publication number
- CN106051165A CN106051165A CN201610440419.8A CN201610440419A CN106051165A CN 106051165 A CN106051165 A CN 106051165A CN 201610440419 A CN201610440419 A CN 201610440419A CN 106051165 A CN106051165 A CN 106051165A
- Authority
- CN
- China
- Prior art keywords
- air
- metering device
- lip
- seed metering
- supporter
- 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.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/04—Single-grain seeders with or without suction devices
- A01C7/042—Single-grain seeders with or without suction devices using pneumatic means
- A01C7/044—Pneumatic seed wheels
- A01C7/046—Pneumatic seed wheels with perforated seeding discs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- Greenhouses (AREA)
Abstract
The invention provides a flexible fit seal ring for an air-suction seed metering device. The seal ring can be closely fit with the back surface of a seed metering disk, the air pressure loss caused by the poor impermeability of a vacuum air chamber is effectively reduced, and the efficiency of a fan is improved, so that the filling missing rate of the seed metering device is reduced under the condition of the same fan. The technical scheme is as follows: the seal ring comprises a supporting body, a lip, stop rings and positioning bosses, wherein the supporting body is arranged on an air chamber casing of the air-suction seed metering device, the inner side and the outer side of the supporting body adopt circular structures with curved surfaces, and the circular structures have fractures; the lip is arranged at the upper part of the supporting body and makes contact with the seed metering disk of the air-suction seed metering device; one stop ring is arranged on each of the inner side and the outer side of the middle of the supporting body; a plurality of positioning bosses are arranged on the outer side of the lower part of the supporting body at intervals; the supporting body, the lip and the stop rings are combined to form an air cavity with openings in the upper part and the lower part; and the air cavity comprises a seed suction area AB, a seed cleaning area BC, a seed sending area CD and a seed charging area DE which are arranged sequentially.
Description
Technical field
The present invention relates to the sealing device in a kind of agricultural mechanical field, be specifically related to a kind of for air-suction seeding unit
Flexible laminating sealing ring.
Background technology
Air-suction seeding unit, because of its high speed, accurate feature, becomes giving priority to of large seed precise sowing technology
Direction.Its operation principle is the negative pressure utilizing high-speed fan to produce, and forms vacuum room in discharge plate side, when discharge plate is with axle
During revolution, vacuum room keeps static, under vacuum room's suction function, is adsorbed on discharge plate by seed.When seed place
Fill kind of a type hole when producing vacuum room, negative pressure disappears, and seed relies on its deadweight or the effect of seed scraping device to fall, and completes seeding
Action.
In the case of blower fan is identical, the seal of vacuum room is the best, then the negative pressure produced in air chamber is the biggest, discharge plate two
Seed more can be adsorbed by the pressure reduction of side firmly, thus effectively reduce and leakage fill and hole.In the field that surface relief is bigger
When operation and high-speed job, the good seal of vacuum room is particularly important.
The vacuum room of current air-suction seeding unit is mainly combined by discharge plate and rigid member.Due to discharge plate
And having relative motion between other component of air chamber, the laminating of tension can cause bigger friction, increases the resistance that discharge plate rotates, adds
Speed discharge plate and the abrasion of other air chamber component, affect service life；The laminating crossing pine then can cause air chamber seal poor, increases
Add the power loss of blower fan, and easily cause and leakage fill and hole.
Study suitable air chamber structure form and structural material, it will the effective seal improving vacuum room, reduce
Rate is filled in the leakage of feed mechanism for seed, reduces the power loss of blower fan.
Summary of the invention
In order to solve the problems referred to above, the present invention provides a kind of air-suction seed metering device flexible laminating sealing ring, it is possible to seeding
The dish back side fits tightly, effective air loss reducing vacuum room's seal difference and cause, the efficiency of raising blower fan, thus
Rate is filled in the leakage reducing feed mechanism for seed in the case of blower fan is identical.
The present invention is by the following technical solutions:
A kind of air-suction seed metering device flexibility laminating sealing ring, including supporter, lip, stopper ring and positioning boss；Supporter sets
Putting on the gas chamber shell of air-suction seed metering device, in supporter, outside is the circulus of curved surface, and circulus has fracture；
Supporter top is provided with lip, and lip contacts with the discharge plate of air-suction seed metering device；In in the middle part of supporter, outside is only respectively arranged with a circle
Moving-coil；Supporter lower outside is arranged at intervals with several positioning boss；Supporter, lip and stopper ring are combined into upper and lower part to be had
The air cavity of opening, including the suction kind region AB set gradually, clear kind region BC, send kind of region CD and the region DE that charges seed.
Further, supporter, lip, stopper ring and positioning boss are integral type structure, are become by mould time processing
Type, and can not be split each other, this structure ensure that the seal sealing final vacuum air chamber.
Further, supporter, lip and stopper ring generally C-shaped configuration, supporter, lip and stopper ring are for set with one heart
Put, and central angle is 240 ° ~ 300 °.
Further, lip inner ring and outer ring are all to the outside flange of air cavity, and this structure can avoid discharge plate to cause when rotating
Lip varus, prevent air inlet from causing barometric disturbance.
Further, lip has prolongation at area distal of charging seed, and this prolongation can prevent from filling kind of a type after charging seed
Gas inlet hole causes barometric disturbance.
Further, supporter is chassis less construction, uses elastomeric material to make.
Further, stopper ring is semi-annular shape structure, can effectively prevent the slit source between supporter and air cavity housing
Gas, causes atmospheric pressure lost, and can efficiently reduce the contact area of supporter and air cavity housing, reduces friction resistance when installing
Power.
Further, positioning boss is that cuboid is protruding, can the position of fixed seal ring, prevent sealing ring from moving to all directions
Dynamic.
Beneficial effects of the present invention: the supporter of this sealing ring and gas chamber shell male-female engagement, lip can be with discharge plate
The back side fits tightly, in the case of vacuum room reduces pressure, and effective air loss reducing vacuum room's seal difference and cause, carry
The efficiency of high blower fan, thus rate is filled in the leakage reducing feed mechanism for seed in the case of blower fan is identical.Stopper ring can effectively prevent sealing ring
Dropping in work process, positioning boss can effectively prevent sealing ring from moving and rotate, and lip is at the prolongation energy of area distal of charging seed
The barometric disturbance that enough rear profile gas inlet holes that effectively prevents from charging seed cause.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the Facad structure schematic diagram of the present invention；
Fig. 2 is the F-F cross section structure schematic diagram of the present invention；
Fig. 3 is the left side view of the present invention；
Fig. 4 is the 3 d effect graph of the present invention.
In figure: 1, lip, 2, supporter, 3, stopper ring, 4, positioning boss, 5, air cavity.
Detailed description of the invention
For making the purpose of the present invention, technical scheme and advantage clearer, develop simultaneously embodiment referring to the drawings, right
The present invention further describes.
A kind of air-suction seed metering device flexibility laminating sealing ring, including supporter 2, lip 1, stopper ring 3 and positioning boss 4；
Supporter 2 is arranged on the gas chamber shell of air-suction seed metering device, and in supporter 2, outside is the circulus of curved surface, and ring-type knot
Structure has fracture；Supporter 2 top is provided with lip 1, and lip 1 contacts with the discharge plate of air-suction seed metering device；In in the middle part of supporter 2
Outside is respectively arranged with a circle stopper ring 3；Supporter 2 lower outside is arranged at intervals with several positioning boss 4；Supporter 2, lip 1 and only
Moving-coil 3 is combined into upper and lower part the air cavity 5 of opening, including the suction kind region AB set gradually, clear kind region BC, send kind of a region
CD and the region DE that charges seed, regional divides with other workpiece installation sites of feed mechanism for seed for depending on without obvious boundary, each region
According to.
In the present embodiment, supporter 2, lip 1, stopper ring 3 and positioning boss 4 are integral type structure, by mould once
Machine-shaping, and can not be split each other.
In the present embodiment, supporter 2, lip 1 and stopper ring 3 generally C-shaped configuration, supporter 2, lip 1 and stopper ring 3
For being arranged concentrically, and central angle is 240 ° ~ 300 °.
In the present embodiment, lip 1 inner ring and outer ring are all to the outside flange of air cavity；Lip 1 has prolongation at area distal of charging seed
Part.
In the present embodiment, stopper ring 3 is semi-annular shape structure；Positioning boss 4 is that cuboid is protruding.
In the present embodiment, supporter 2 is chassis less construction, uses elastomeric material to make.
Supporter 2 and the gas chamber shell male-female engagement of the present invention, lip 1 can fit tightly with the discharge plate back side, very
In the case of air chamber decompression, effective air loss reducing vacuum room's seal difference and cause, improve the efficiency of blower fan, thus
Rate is filled in the leakage reducing feed mechanism for seed in the case of blower fan is identical.Stopper ring 3 can effectively prevent from dropping in sealing ring work process, fixed
Position boss 4 can effectively prevent sealing ring from moving and rotate, and lip 1 is after the prolongation of area distal of charging seed can effectively prevent from charging seed
The barometric disturbance that type gas inlet hole causes.
Work process of the present invention is as follows: the sealing ring of the present invention and discharge plate relative motion, itself and gas chamber shell during motion
Static, discharge plate rotates clockwise.When on discharge plate fill kind of type hole turn to inhale kind of region AB with dish time, seed is sucted；
When turning to plant clearly region BC, Seed-cleaning tool unnecessary Seed cleaning up is fallen, leave behind a seed；Seed turns over dish and send kind
Region CD, and produce charge seed region DE end time air negative pressure disappear, seed falls.
Above-mentioned detailed description of the invention is only the concrete case of the present invention, is not the restriction that the present invention makees other form,
Any those skilled in the art are changed possibly also with the technology contents of the disclosure above or are modified as equivalent variations
Equivalent implementations.But every without departing from the technology of the present invention principle on the premise of, according to the present invention technical spirit to more than
Any simple modification, equivalent variations and the remodeling that embodiment is made, all should fall into the scope of patent protection of the present invention.
Claims (8)
1. an air-suction seed metering device flexibility laminating sealing ring, it is characterised in that: include supporter, lip, stopper ring and location
Boss；Supporter is arranged on the gas chamber shell of air-suction seed metering device, and in supporter, outside is the circulus of curved surface, and ring-type
Structure has fracture；Supporter top is provided with lip, and lip contacts with the discharge plate of air-suction seed metering device；Inside and outside in the middle part of supporter
Side is respectively arranged with a circle stopper ring；Supporter lower outside is arranged at intervals with several positioning boss；Supporter, lip and stopper ring combination
Become upper and lower part to have the air cavity of opening, including the suction kind region AB set gradually, clear kind region BC, send kind of region CD and district of charging seed
Territory DE.
Air-suction seed metering device flexibility laminating sealing ring the most according to claim 1, it is characterised in that: supporter, lip, stop
Circle and positioning boss are integral type structure, are processed and formed at one time by mould, and can not be split each other.
Air-suction seed metering device flexibility laminating sealing ring the most according to claim 1, it is characterised in that: supporter, lip and only
Moving-coil generally C-shaped configuration, supporter, lip and stopper ring are for being arranged concentrically, and central angle is 240 ° ~ 300 °.
Air-suction seed metering device flexibility laminating sealing ring the most according to claim 1, it is characterised in that: lip inner ring and outer ring are equal
To the outside flange of air cavity.
Air-suction seed metering device flexibility laminating sealing ring the most according to claim 1, it is characterised in that: lip is at end, region of charging seed
End has prolongation.
Air-suction seed metering device flexibility laminating sealing ring the most according to claim 1, it is characterised in that: supporter is exoskeletal knot
Structure, uses elastomeric material to make.
7. according to the flexibility laminating sealing ring of air-suction seed metering device described in any one of claim 1 to 6, it is characterised in that: stopper ring
For semi-annular shape structure.
8. according to the flexibility laminating sealing ring of air-suction seed metering device described in any one of claim 1 to 6, it is characterised in that: convex
Platform is that cuboid is protruding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440419.8A CN106051165A (en) | 2016-06-20 | 2016-06-20 | Flexible fit seal ring for air-suction seed metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440419.8A CN106051165A (en) | 2016-06-20 | 2016-06-20 | Flexible fit seal ring for air-suction seed metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106051165A true CN106051165A (en) | 2016-10-26 |
Family
ID=57167846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610440419.8A Pending CN106051165A (en) | 2016-06-20 | 2016-06-20 | Flexible fit seal ring for air-suction seed metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106051165A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728084A (en) * | 2020-12-24 | 2021-04-30 | 中国航发长江动力有限公司 | Metal sealing ring processing method and metal sealing ring |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201690766U (en) * | 2010-07-09 | 2011-01-05 | 陈恒 | Air-suction type precision seed extractor |
| CN201723723U (en) * | 2010-06-18 | 2011-01-26 | 卫德义 | Y-type leather cup sealing member with inner double lips or outer double lips |
| CN102364169A (en) * | 2011-11-14 | 2012-02-29 | 揭阳市天诚密封件有限公司 | Double-lip oil seal device capable of regulating pressure automatically |
| CN102577716A (en) * | 2012-03-20 | 2012-07-18 | 中国农业大学 | Air suction and mechanical auxiliary planting combined type corn precision seed-metering device and seed metering method thereof |
| US20140041564A1 (en) * | 2011-03-09 | 2014-02-13 | Vaderstad-Verken Ab | Sealing gasket and seed housing for a seeder and seeder comprising such a seed housing |
| CN104048046A (en) * | 2014-05-26 | 2014-09-17 | 北京航天发射技术研究所 | Sealing ring with multiple sealing lines |
| CN205715664U (en) * | 2016-06-20 | 2016-11-23 | 山东省农业机械科学研究院 | Air-suction seed metering device flexibility laminating sealing ring |
-
2016
- 2016-06-20 CN CN201610440419.8A patent/CN106051165A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201723723U (en) * | 2010-06-18 | 2011-01-26 | 卫德义 | Y-type leather cup sealing member with inner double lips or outer double lips |
| CN201690766U (en) * | 2010-07-09 | 2011-01-05 | 陈恒 | Air-suction type precision seed extractor |
| US20140041564A1 (en) * | 2011-03-09 | 2014-02-13 | Vaderstad-Verken Ab | Sealing gasket and seed housing for a seeder and seeder comprising such a seed housing |
| CN102364169A (en) * | 2011-11-14 | 2012-02-29 | 揭阳市天诚密封件有限公司 | Double-lip oil seal device capable of regulating pressure automatically |
| CN102577716A (en) * | 2012-03-20 | 2012-07-18 | 中国农业大学 | Air suction and mechanical auxiliary planting combined type corn precision seed-metering device and seed metering method thereof |
| CN104048046A (en) * | 2014-05-26 | 2014-09-17 | 北京航天发射技术研究所 | Sealing ring with multiple sealing lines |
| CN205715664U (en) * | 2016-06-20 | 2016-11-23 | 山东省农业机械科学研究院 | Air-suction seed metering device flexibility laminating sealing ring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728084A (en) * | 2020-12-24 | 2021-04-30 | 中国航发长江动力有限公司 | Metal sealing ring processing method and metal sealing ring |
| CN112728084B (en) * | 2020-12-24 | 2023-04-14 | 中国航发长江动力有限公司 | Metal sealing ring processing method and metal sealing ring |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |