CN102124846B - Air-aspiration type precise seed taking device - Google Patents
Air-aspiration type precise seed taking device Download PDFInfo
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- CN102124846B CN102124846B CN201110083842.4A CN201110083842A CN102124846B CN 102124846 B CN102124846 B CN 102124846B CN 201110083842 A CN201110083842 A CN 201110083842A CN 102124846 B CN102124846 B CN 102124846B
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Abstract
The invention relates to a component for an agricultural seeding machine, in particular to an air-aspiration type precise seed taking device which can be used for a precise seeding machine. The air-aspiration type precise seed taking device mainly comprises a negative pressure cavity (1), a seed sucking disc (3) and an installation shaft (4), wherein the seed sucking disc (3) is fixedly connected to the end part of the negative pressure cavity (1); the installation shaft (4) is connected with the negative pressure cavity (1) through a bearing (6); an air stopping block is arranged in the negative pressure cavity (1); the air stopping block is connected with the installation shaft (4) and is in sliding or rolling fit with the seed sucking disc (3); and the contact area between the air stopping block and the seed sucking disc at least covers one seed sucking hole (2). The invention has the advantages that: the overall structural design is scientific, the transmission is stable, and the rotation of the negative pressure cavity is combined with the air stopping of a sliding block to realize precise seeding; the air tightness of the negative pressure cavity is good, thus the negative pressure is more stabilized, the seed taking rate is improved, and the hole rate is reduced; the service life of the seed sucking disc is prolonged, and the power consumption is reduced; and the negative pressure seal is airtight and reliable, and the service performance is stable, thus the precise seed taking quality and stability are further improved.
Description
Technical field
The present invention relates to the parts on a kind of agricultural seeding machine, a kind of air-aspiration type precise seed taking device particularly, applicable to using on precision sower.
Technical background
Common air-suction type seed metering device (or claiming seeder) comprises that seeds sucker and negative pressure cavity form, during use, by coupling spindle, make seeds sucker be fixed on the end face of negative pressure cavity, seeds sucker is a disk, prolongs the uniform equidistant suction hole of circumferencial direction of disk border, during work, by the air intake duct connecting with negative pressure cavity, bleed, seeds sucker drives by central shaft simultaneously, in the end face rotation of negative pressure cavity, seeds sucker rotation object will complete two tasks, and the one, seed is drawn onto to suction hole (or two); The 2nd,, by the seed being drawn onto (processing through seed scraping device) in voltage discharging area (bottom of negative pressure cavity arranges fan-shaped voltage discharging area) separated with seed-taking device under Action of Gravity Field.Seeds sucker coordinates because be slidably matched (the two relatively rotates) with negative pressure cavity, and its sealed precision depends on the machining accuracy of seeds sucker and negative pressure cavity counterface, but in relative motion, guarantees that sealing is impossible.Actual situation is, the junction of seeds sucker and negative pressure cavity exists inevitable gap, causes gas leakage, and the result of gas leakage can cause negative pressure unstable, and then there will be the situation that may inhale less than seed, makes planting rates decline.Such as: Chinese patent literature discloses a kind of air-sucking seeding on June 17th, 1998, publication number is CN2283960, this device is by cylinder, drum shaft and pressing wheel form, its pressing wheel and cylinder are connected as a single entity, cylinder is provided with seed chamber in chamber, seeds sucker and vacuum chamber, seeds sucker is connected with cylinder, seeds sucker, cylinder and pressing wheel are with being contained on drum shaft, seeds sucker periphery is provided with equidistant suction hole, cylinder inner circle periphery is provided with seed reception bucket, the duckbilled indenting tool corresponding with seed reception bucket is housed on cylinder circumferential periphery, mulch film is housed below cylinder and pressing wheel.Air-suction type precision seed extractor wherein, mainly by vacuum cavity, seeds sucker forms, seeds sucker is fixed on the end face of vacuum cavity, when work, seeds sucker and vacuum cavity relatively rotate, that negative pressure cavity is fixed on support concretely, seeds sucker rotation, such structure is difficult to guarantee the negative regulation of vacuum cavity, reason is when seeds sucker rotates, there is inevitable gap in the junction of seeds sucker and negative pressure cavity, cause gas leakage, the size of air leakage is the great key element that guarantees product negative regulation, therefore, technical staff one of the same trade can control gas leakage straight through the improvement of material and the design of fit system expectation, but the structure problem due to design itself, do not obtain substantial solution.The inventor, by changing the structure of seed-taking device, while working, allows air-suction type seed metering device directly rotate, and does not allow and produces relative motion between seeds sucker and vacuum cavity, other structure is made to corresponding improvement simultaneously and completes the present invention.Product of the present invention, makes planting rates almost reach 100%.
Summary of the invention
The object of this invention is to provide a kind of air-suction type precision seed extractor being applicable on precise hole sowing device, the suction kind rate of this seed-taking device almost reaches 100%.
The object of the present invention is achieved like this:
The present invention mainly comprises that vacuum cavity 1, seeds sucker 3 and installation shaft 4 form, seeds sucker 3 is fixedly connected in the end of vacuum cavity 1, making does not have relative motion between seeds sucker 3 and vacuum cavity 1, between installation shaft 4 and vacuum cavity 1, by bearing 6, be connected, at the interior setting of vacuum cavity 1 piece of holding one's breath, the piece of holding one's breath is connected with installation shaft 4 and is slided or roll with seeds sucker 3 by the piece support of holding one's breath and coordinates, and the contact area of hold one's breath piece and seeds sucker covers a suction hole 2; Tooth or gear 12 are set on described vacuum cavity 1; The tooth arranging on vacuum cavity 1 or installation gear 12, be arranged on vacuum cavity excircle; Vacuum cavity 1 can also be boss-shaped, the tooth arranging at the boss place of vacuum cavity 1 or installation gear 12; Vacuum cavity 1 is hollow shaft or local hollow shaft 11 in the installation shaft 4 at vacuum cavity center, makes the gas can be from the interior discharge of vacuum cavity 1; The piece 9 of holding one's breath arranging in vacuum cavity is shaped as fan-shaped or rectangle or ellipse; What in vacuum cavity, arrange holds one's breath block-shaped 13 for roller shape, and the piece 13 use elastomeric materials of holding one's breath roll; In vacuum cavity 1 and seeds sucker 3 connection places, sealing ring 8 is set.
Advantage of the present invention is 1, overall construction design science, and transmission is stable, adopts vacuum cavity to rotate with the hold one's breath form that combines of slide block and realizes essence and measure seeding.2, negative pressure cavity good leak tightness makes negative pressure more stable, has improved kind of the rate of getting, and reduces hole rate.3, increase the service life of seeds sucker, reduced power consumption; Negative-pressure sealing is tight reliably, serviceability is stable, has further improved quality and the stability of smart seed-fetching.
Accompanying drawing explanation
Fig. 1 is a kind of cutaway view of the present invention, the B-B cutaway view of accompanying drawing 2;
Fig. 2 is Fig. 1 A-A cutaway view;
Fig. 3 is Fig. 1 partial enlarged drawing (obturating system);
Fig. 4 is the present invention's another kind of structure cutaway view again, the C-C cutaway view of accompanying drawing 5;
Fig. 5 is accompanying drawing 4 D-D cutaway views;
Fig. 6 is Fig. 4 partial enlarged drawing (obturating system).
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in drawings, the label in figure represents respectively: 1--vacuum cavity, 2-suction hole, 3-seeds sucker, 4-installation shaft, 5-negative pressure hole, 6-bearing, 7-bearing sealed ring, 8-seeds sucker sealing ring, 9-slip piece, 10-spring, 11-hollow shaft, 12-tooth or gear, 13-roll piece, 14-bolt hole, 15--piece support, the 16-piece support (another kind) of holding one's breath of holding one's breath of holding one's breath of holding one's breath.
Embodiment 1
As accompanying drawing 1,2,3 shows, the present invention mainly comprises that vacuum cavity 1, seeds sucker 3 and installation shaft 4 form, and seeds sucker 3 is fixedly connected in the end of vacuum cavity 1, and tooth or gear 12 are set on vacuum cavity 1; The tooth arranging on vacuum cavity 1 or installation gear 12, be arranged on vacuum cavity excircle, conventionally there are two kinds of methods, the one,, while making negative pressure air cavity by the tooth of gear directly and negative pressure air cavity be made as one (such as injection moulding), or make in addition on gear socket vacuum cavity 1, the effect of this tooth or gear is under external force, drives vacuum cavity 1 and seeds sucker rotation; A part for installation shaft 4 is hollow shaft 11, and during use, hollow shaft 11 one end are connected with negative pressure suction tube, and the other end has the hole communicating with negative pressure air cavity.Between installation shaft and vacuum cavity 1 by two of bearing 6(both sides bearing) be connected and be provided with two of bearing sealed ring 7(both sides sealing ring), at the interior piece 13 of holding one's breath that rolls that arranges of vacuum cavity 1, rolling is held one's breath, and piece 13 is fixedly connected (the two does not have relative motion) with installation shaft 4 by the bolt hole 14 of holding one's breath on piece support 15 and coordinate (piece of holding one's breath when vacuum cavity 1 and seeds sucker 3 rotate is motionless) with seeds sucker 3 rollings, its section configuration is roller shape (this piece of holding one's breath can reduce frictional force with respect to sliding shoe), the rolling piece 13 the most handy elastomeric materials of holding one's breath, while coordinating with seeds sucker like this, easily produce a pressure, make to be more easily fitted on suction hole, the contact area that rolling is held one's breath on piece 13 seeds suckers covers a suction hole 2, installation shaft 4 parts at vacuum cavity 1 center are hollow shaft 11, the channeling that this hollow shaft has generation negative inspiratory pressure also has the function that is fixedly installed the piece 13 of holding one's breath outward, while being air-suction type seed metering device rotation, installation shaft 4 is not rotated, the piece 13 of holding one's breath being fixedly connected with it does not rotate yet, seed is inhaled on seeds sucker 3, when suction hole 2, is held one's breath piece 13 while holding one's breath, and seed departs from seeds sucker and falls under Action of Gravity Field, in vacuum cavity 1 and seeds sucker 3 connection places, sealing ring 8 is set, sealing circle is necessary in some cases, be more prone to like this sealing, why interchangeable seeds sucker (live and connect) is set, and directly and vacuum cavity be designed to one, be that agriculture requirement based on different crops is inconsistent, size and the spacing of suction hole change.
Embodiment 2
As accompanying drawing 4,5,6 shows, with the difference of embodiment 1 be that vacuum cavity 1 can also be boss-shaped, the tooth arranging at the boss place of vacuum cavity 1 or gear 12 is installed, the function of this tooth or gear 11 is as the part of transmission when needing vacuum cavity 1 to regulate rotary speed; Hollow shaft 11 in installation shaft 4 connects with vacuum cavity 1 by bearing 6, and increase bearing sealed ring 7, and the slip arranging in the vacuum cavity piece 9 of holding one's breath is shaped as fan-shaped or rectangle or ellipse or dumbbell shaped; Material can be selected plastics, and the piece support 16 of holding one's breath is fixedly connected (making the two there is no relative motion) with installation shaft 4, holds one's breath and is slidably matched between piece support 16 and slide block, at the effect lower slider of spring 10 piece 9 of holding one's breath, can be fitted on seeds sucker under pressure.
Although below with reference to accompanying drawing to having done to elaborate according to the design of the utility model object and example; but those of ordinary skills can recognize; do not departing under the precondition of 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 (5)
1. an air-aspiration type precise seed taking device, mainly comprise vacuum cavity (1), seeds sucker (3) and installation shaft (4), it is characterized in that, seeds sucker (3) is fixedly connected in the end of vacuum cavity (1), making does not have relative motion between seeds sucker (3) and vacuum cavity (1), between installation shaft (4) and vacuum cavity (1), by bearing (6), be connected, the piece of holding one's breath is set in vacuum cavity (1), the piece of holding one's breath connects with installation shaft (4) by the piece support of holding one's breath and slides or roll with seeds sucker (3) and coordinates, the contact area of piece and seeds sucker of holding one's breath covers a suction hole (2), tooth or gear (12) are set on described vacuum cavity (1), be arranged on vacuum cavity excircle, the effect of this tooth or gear is under external force, drive vacuum cavity (1) and seeds sucker rotation, the installation shaft (4) of vacuum cavity (1) at vacuum cavity center is hollow shaft or local hollow shaft, gas can be discharged in vacuum cavity (1).
2. air-aspiration type precise seed taking device according to claim 1, it is characterized in that, vacuum cavity (1) is boss-shaped, the tooth arranging at the boss place of vacuum cavity (1) or installation gear (12), the effect of this tooth or gear is under external force, drives vacuum cavity (1) and seeds sucker rotation.
3. air-aspiration type precise seed taking device according to claim 1, is characterized in that, the piece of holding one's breath (9) arranging in vacuum cavity is shaped as fan-shaped or rectangle or ellipse.
4. air-aspiration type precise seed taking device according to claim 1, is characterized in that, holding one's breath of arranging in vacuum cavity block-shaped (13) is roller shape, and the piece (13) of holding one's breath of rolling is used elastomeric material.
5. air-aspiration type precise seed taking device according to claim 1, is characterized in that, in vacuum cavity (1) and seeds sucker (3) connection place, sealing ring (8) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110083842.4A CN102124846B (en) | 2011-04-02 | 2011-04-02 | Air-aspiration type precise seed taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110083842.4A CN102124846B (en) | 2011-04-02 | 2011-04-02 | Air-aspiration type precise seed taking device |
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| Publication Number | Publication Date |
|---|---|
| CN102124846A CN102124846A (en) | 2011-07-20 |
| CN102124846B true CN102124846B (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110083842.4A Active CN102124846B (en) | 2011-04-02 | 2011-04-02 | Air-aspiration type precise seed taking device |
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| CN (1) | CN102124846B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696309B (en) * | 2012-06-18 | 2014-09-17 | 陈恒 | Pneumatic precision seed-extracting mechanism |
| CN102771233B (en) * | 2012-07-31 | 2015-03-11 | 河北省农业机械化研究所有限公司 | Air-aspiration type disseminator with circumferential holes |
| CN103591163B (en) * | 2013-11-04 | 2016-01-06 | 中国科学院苏州生物医学工程技术研究所 | A kind of finned ultraprecise static air pressure coupling device |
| CN106105514A (en) * | 2016-07-18 | 2016-11-16 | 柳州好顺科技有限公司 | One takes kind of a structure |
| CN106171173A (en) * | 2016-07-18 | 2016-12-07 | 柳州好顺科技有限公司 | A kind of seed fetching equipment |
| CN111512751B (en) * | 2020-04-30 | 2023-05-09 | 山东省农业机械科学研究院 | Combined seed feeding device and air suction type seed feeding device |
| CN112205129A (en) * | 2020-09-18 | 2021-01-12 | 哈尔滨华惠农业机械制造有限公司 | Novel air-suction type electric seed sowing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2410855Y (en) * | 1999-10-27 | 2000-12-20 | 新疆生产建设兵团农七师一三○团机械厂 | Aspirated-air precision seeding apparatus |
| CN2466871Y (en) * | 2001-03-08 | 2001-12-26 | 新疆车排子一二三团修造厂 | Suction precision hill planter |
| CN2824535Y (en) * | 2005-05-31 | 2006-10-11 | 陈立凡 | Adjustable air-suction precision seed-sowing disk |
| CN201928626U (en) * | 2011-04-02 | 2011-08-17 | 徐艺 | Suction type seed metering device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201700150U (en) * | 2010-05-23 | 2011-01-12 | 陈恒 | Precision cylinder bunch-planting device |
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2011
- 2011-04-02 CN CN201110083842.4A patent/CN102124846B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2410855Y (en) * | 1999-10-27 | 2000-12-20 | 新疆生产建设兵团农七师一三○团机械厂 | Aspirated-air precision seeding apparatus |
| CN2466871Y (en) * | 2001-03-08 | 2001-12-26 | 新疆车排子一二三团修造厂 | Suction precision hill planter |
| CN2824535Y (en) * | 2005-05-31 | 2006-10-11 | 陈立凡 | Adjustable air-suction precision seed-sowing disk |
| CN201928626U (en) * | 2011-04-02 | 2011-08-17 | 徐艺 | Suction type seed metering device |
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| CN102124846A (en) | 2011-07-20 |
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Effective date of registration: 20170310 Address after: 015299 the Inner Mongolia Autonomous Region City, Bayannaoer Province town of Ba Zhen Road, Dengkou Patentee after: Bayannaoer Futian Machinery Co., Ltd. Address before: 200136 Shanghai, Pudong New Area Luo Road, Lane 589, room 1, No. 802 Patentee before: Xu Yi |
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Effective date of registration: 20180227 Address after: 015000 Bayannaoer city the Inner Mongolia Autonomous Region Linhe district west of the original trade union pioneer Library Patentee after: Chen Ying Address before: 015299 the Inner Mongolia Autonomous Region City, Bayannaoer Province town of Ba Zhen Road, Dengkou Patentee before: Bayannaoer Futian Machinery Co., Ltd. |
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