CN201928626U - Suction type seed metering device - Google Patents
Suction type seed metering device Download PDFInfo
- Publication number
- CN201928626U CN201928626U CN2011200959903U CN201120095990U CN201928626U CN 201928626 U CN201928626 U CN 201928626U CN 2011200959903 U CN2011200959903 U CN 2011200959903U CN 201120095990 U CN201120095990 U CN 201120095990U CN 201928626 U CN201928626 U CN 201928626U
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- vacuum cavity
- negative
- seed
- breath
- seeds sucker
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Abstract
The utility model relates to a component of an agricultural seeder, in particular to a suction type seed metering device which is applicable to a precision seed planter, mainly comprises a negative-pressure chamber (1), a seed sucking disc (3) and an installing shaft (4), wherein the seed sucking disc (3) is fixedly connected at the end of the negative-pressure chamber (1), the installing shaft (4) and the negative-pressure chamber (1) are connected with each other by a bearing (6), a choke block is arranged in the negative-pressure chamber (1), is connected with the installing shaft (4) and is in sliding or rolling fit with the seed sucking disc (3), and the contact area of the choke block and the seed sucking disc is ensured to at least cover one seed sucking hole (2). The suction type seed metering device has the advantages that: 1. the integral structural design is scientific, the transmission is stable, precision sowing is realized by means of combining rotation of the negative-pressure chamber and the air closure of the slider; 2. good tightness property of the negative-pressure chamber enables the negative pressure to be more stable, the sowing rate is improved, and the cavity rate is reduced; and 3. the service life of the seed sucking disc is prolonged, the power consumption is lowered, the negative pressure sealing is strict and reliable, the service property is stable, and the quality and stability of precise sowing is further improved.
Description
Technical field
The utility model relates to the parts on a kind of agricultural seeding machine, and particularly a kind of driven sucking precise is measured kind of a device, applicable to using on the precision sower.
Background technology
Common air-sucking type seed-taking device (or claiming seeder) comprises seeds sucker and negative pressure cavity composition, during use, make seeds sucker be fixed on the end face of negative pressure cavity by coupling spindle, seeds sucker is a disk, prolongs the uniform equidistant suction hole of circumferencial direction of disk border, during work, bleed by the air intake duct that connects with negative pressure cavity, seeds sucker drives by central shaft simultaneously, in the end face rotation of negative pressure cavity, seeds sucker rotation purpose will be finished two tasks, and the one, seed is drawn onto suction hole (or two); The 2nd,, an above seed (after seed scraping device is handled) that is drawn onto is separated with seed-taking device under action of gravity at voltage discharging area (bottom of negative pressure cavity is provided with fan-shaped voltage discharging area).Seeds sucker cooperates because be slidingly 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 guarantees that in relative motion sealing is impossible.Actual situation is, there is inevitable gap in the junction of seeds sucker and negative pressure cavity, causes gas leakage, and the result of gas leakage can cause the negative pressure instability, and then the situation less than seed can occur inhaling, makes planting rates decline.Such as: Chinese patent literature discloses a kind of air-sucking type seeding and film covering apparatus on June 17th, 1998, publication number is CN2283960, this device is by cylinder, drum shaft and press mold wheel constitute, its press mold wheel is connected as a single entity with cylinder, cylinder is provided with seed chamber in the chamber, seeds sucker and vacuum chamber, seeds sucker is connected with cylinder, seeds sucker, cylinder and press mold wheel are with being contained on the drum shaft, the seeds sucker periphery is provided with equidistant suction hole, cylinder inner periphery limit is provided with seed reception bucket, be equipped with on the cylinder circumferential periphery and the corresponding duckbilled indenting tool of seed reception bucket, mulch film be housed below cylinder and the press mold wheel.Air-sucking type precision weighing seed implement wherein, mainly be by vacuum cavity, seeds sucker is formed, seeds sucker is fixed on the end face of vacuum cavity, when work, seeds sucker and vacuum cavity relatively rotate, be that negative pressure cavity is fixed on the support concretely, the 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, causes gas leakage, and the size of air leakage is the great key element that guarantees the product negative regulation, therefore, technical staff of the same trade can control gas leakage by the improvement of material and the design expectation of fit system always, but because the structure problem of design itself does not obtain substantial solution.The utility model people when promptly working, allows the air-sucking type seed-taking device directly rotate by changing the structure of seed-taking device, does not allow produce relative motion between seeds sucker and the vacuum cavity, simultaneously other structure is made corresponding improvement and finishes the utility model.The utility model product makes planting rates almost reach 100%.
The utility model content
The purpose of this utility model provides a kind of air-sucking type precision weighing seed implement that is applicable on the precise hole sowing device, and the suction kind rate of this seed-taking device almost reaches 100%.
The purpose of this utility model is achieved in that
The utility model mainly comprises vacuum cavity 1, seeds sucker 3 and installation shaft 4 compositions, seeds sucker 3 is fixedly connected in the end of vacuum cavity 1, making does not have relative motion between seeds sucker 3 and the vacuum cavity 1, be connected by bearing 6 between installation shaft 4 and the vacuum cavity 1, 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 cooperates with seeds sucker 3 slips or rolling, and the contact area of hold one's breath piece and seeds sucker covers a suction hole 2 at least; Tooth or gear 12 are set on the described vacuum cavity 1; Tooth that is provided with on vacuum cavity 1 or installation gear 12 are arranged on the vacuum cavity excircle; Vacuum cavity 1 can also be the boss shape, tooth that is provided with 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 gas to discharge in vacuum cavity 1; The piece 9 of holding one's breath that is provided with in vacuum cavity is shaped as fan-shaped or rectangle or ellipse; What be provided with in vacuum cavity holds one's breath block-shaped 13 for the roller shape; In vacuum cavity 1 and seeds sucker 3 connection places sealing ring 8 is set.
The utility model has the advantages that 1, the overall construction design science, transmission is stable, adopts vacuum cavity to rotate with the slide block form that combines of holding one's breath and realizes the smart seeding of measuring.2, the 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 tightly reliable, serviceability is stable, has further improved the smart quality and the stability of planting of measuring.
Description of drawings
Fig. 1 is a kind of the utility model cutaway view, 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 another kind of again structure cutaway view of the utility model, 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 embodiment of the present utility model is described in further detail.
As shown in drawings, the label among the figure is represented 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.
Show that as accompanying drawing 1,2,3 the utility model mainly comprises vacuum cavity 1, seeds sucker 3 and installation shaft 4 compositions, seeds sucker 3 is fixedly connected in the end of vacuum cavity 1, and tooth or gear 12 are set on the vacuum cavity 1; Tooth that on vacuum cavity 1, is provided with or installation gear 12, be arranged on the vacuum cavity excircle, two kinds of methods are arranged usually, the one,, when making the negative pressure air cavity with the tooth of gear directly and the negative pressure air cavity be made as one (such as injection moulding), or make in addition on the gear socket vacuum cavity 1, the effect of this tooth or gear is under external force, drives the rotation of vacuum cavity 1 and seeds sucker; The part of installation shaft 4 is a hollow shaft 11, and during use, hollow shaft 11 1 ends are connected with negative pressure suction tube, and the other end has the hole that communicates with the negative pressure air cavity.Between installation shaft and the vacuum cavity 1 by two bearings in bearing 6(both sides) be connected and be provided with two sealing rings in bearing sealed ring 7(both sides), the piece 13 of holding one's breath that rolls is set in vacuum cavity 1, rolling is held one's breath, and piece 13 is fixedly connected (the two does not have relative motion) by bolt hole 14 on the piece support 15 of holding one's breath and installation shaft 4 and cooperate (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 is with respect to the sliding shoe power of can reducing friction), the rolling piece 13 the most handy elastomeric materials of holding one's breath, when cooperating with seeds sucker like this, be easy to generate a pressure, make easier being fitted on the suction hole, roll and hold one's breath contact area on piece 13 seeds suckers to cover one or two suction hole 2(suction hole be inconsistent according to the planting requirement pitch of holes of Different Crop); Installation shaft 4 parts at vacuum cavity 1 center are hollow shaft 11, this hollow shaft has the channeling that produces negative inspiratory pressure and also has the function of the piece 13 of fixedly holding one's breath outward, when being the rotation of air-sucking type seed-taking device, installation shaft 4 is not rotated, the support of the piece 13 of holding one's breath that is fixedly connected with it does not rotate yet, seed is inhaled on seeds sucker 3, is held one's breath piece 13 when holding one's breath when suction hole 2, and seed breaks away from seeds sucker and whereabouts under action of gravity; In vacuum cavity 1 and seeds sucker 3 connection places sealing ring 8 is set, the sealing circle is necessary in some cases, be more prone to sealing like this, why interchangeable seeds sucker (live and connect) is set, and directly and vacuum cavity be designed to one, the agriculture requirement that is based on different crops is inconsistent, and the size and the spacing of suction hole change.
Show as accompanying drawing 4,5,6, with the difference of embodiment 1 be that vacuum cavity 1 can also be the boss shape, the tooth that is provided with at the boss place of vacuum cavity 1 or gear 12 is installed, the function of this tooth or gear 11 are 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 that is provided with in the vacuum cavity piece 9 of holding one's breath is shaped as fan-shaped or rectangle or ellipse; Material can be selected plastics, and the piece support 16 of holding one's breath is fixedly connected (making the two not have relative motion) with installation shaft 4, and holding one's breath is slidingly matched between piece support 16 and the slide block, can be fitted on the seeds sucker under pressure at the effect lower slider of spring 10 piece 9 of holding one's breath.
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 (8)
1. air-sucking type seed-taking device, mainly comprise vacuum cavity (1), seeds sucker (3) and installation shaft (4) are formed, 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 the vacuum cavity (1), be connected by bearing (6) between installation shaft (4) and the vacuum cavity (1), 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 cooperates with seeds sucker (3) slip or rolling, and the contact area of hold one's breath piece and seeds sucker covers a suction hole (2) at least.
2. air-sucking type seed-taking device according to claim 1 is characterized in that, tooth or gear (12) are set on the described vacuum cavity (1).
3. air-sucking type seed-taking device according to claim 2 is characterized in that, goes up the tooth that is provided with or gear (12) is installed at vacuum cavity (1), is arranged on the vacuum cavity excircle.
4. air-sucking type seed-taking device according to claim 1 is characterized in that, vacuum cavity (1) is the boss shape, tooth that is provided with at the boss place of vacuum cavity (1) or installation gear (12).
5. air-sucking type seed-taking device according to claim 1 is characterized in that, vacuum cavity (1) is hollow shaft or local hollow shaft in the installation shaft (4) at vacuum cavity center, makes gas to be drawn out of in vacuum cavity (1).
6. air-sucking type seed-taking device according to claim 1 is characterized in that, the piece of holding one's breath (9) that is provided with in vacuum cavity is shaped as fan-shaped or rectangle or ellipse.
7. air-sucking type seed-taking device according to claim 1 is characterized in that, holding one's breath of being provided with in vacuum cavity block-shaped (13) is the roller shape.
8. air-sucking type 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 |
|---|---|---|---|
| CN2011200959903U CN201928626U (en) | 2011-04-02 | 2011-04-02 | Suction type seed metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200959903U CN201928626U (en) | 2011-04-02 | 2011-04-02 | Suction type seed metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201928626U true CN201928626U (en) | 2011-08-17 |
Family
ID=44440175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200959903U Expired - Fee Related CN201928626U (en) | 2011-04-02 | 2011-04-02 | Suction type seed metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201928626U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102124846A (en) * | 2011-04-02 | 2011-07-20 | 徐艺 | Air-aspiration type precise seed taking device |
| 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 |
| CN109247101A (en) * | 2017-07-14 | 2019-01-22 | 四川农业大学 | A kind of adjustable seeder of plate aspirated-air type |
-
2011
- 2011-04-02 CN CN2011200959903U patent/CN201928626U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102124846A (en) * | 2011-04-02 | 2011-07-20 | 徐艺 | Air-aspiration type precise seed taking device |
| CN102124846B (en) * | 2011-04-02 | 2014-10-29 | 徐艺 | Air-aspiration type precise seed taking device |
| 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 |
| CN109247101A (en) * | 2017-07-14 | 2019-01-22 | 四川农业大学 | A kind of adjustable seeder of plate aspirated-air type |
| CN109247101B (en) * | 2017-07-14 | 2023-11-24 | 四川农业大学 | Adjustable disseminator of picture peg air-aspiration type |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20200402 |