CN203194129U - Double-chamber type pneumatic seed sowing device - Google Patents
Double-chamber type pneumatic seed sowing device Download PDFInfo
- Publication number
- CN203194129U CN203194129U CN 201320193226 CN201320193226U CN203194129U CN 203194129 U CN203194129 U CN 203194129U CN 201320193226 CN201320193226 CN 201320193226 CN 201320193226 U CN201320193226 U CN 201320193226U CN 203194129 U CN203194129 U CN 203194129U
- Authority
- CN
- China
- Prior art keywords
- seed
- chamber
- seeding
- sowing
- seed sowing
- 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
Links
Images
Landscapes
- Sowing (AREA)
Abstract
The utility model belongs to a seed sowing device of sowing machinery in agricultural machinery, and in particular relates to a double-chamber type pneumatic seed sowing device. The double-chamber type pneumatic seed sowing device consists of a left air chamber, a right air chamber, a left seed sucking plate, a seed charging chamber, a seed sowing tube, a seed sowing shaft, a seed inlet adjusting plate and a seed unloading block. The seed sowing device is respectively and symmetrically provided with the left and the right seed sucking plates and the left and the right air chambers at the left side and the right side of the seed charging chamber along the axial direction of the seed sowing shaft; the seed charging chamber is divided into a seed charging chamber and a seed sowing chamber by an internal partition plate; a plurality of seed sucking holes are formed in the plate surfaces of the seed sucking plates along the circumferential direction; seed stirring teeth are formed on the edges of the seed sowing holes. The seed sowing tube is capable of swinging leftwards and rightwards. The double-chamber type pneumatic seed sowing device disclosed by the utility model can be used for sequential seed sowing or independent seed sowing by the two seed sucking plates, so that seed sowing amount, seed sowing hole spacing and seed sowing line spacing can be changed on the condition of realizing precise seed sowing. The double-chamber type pneumatic seed sowing device disclosed by the utility model is suitable for precise hole sowing of the crops including rice, cottons, corns, soybeans and the like.
Description
Technical field
The utility model belongs to the seeding machinery in the agricultural machinery, is specifically related to a kind of bicavate pneumatic seeding, and this seeding unit is applicable to the precise hole sowing operation of crops such as paddy rice, corn, cotton, beans, vegetables and tobacco.
Background technology
China's rice mechanization planting technique mainly contains that machine transplanting of rice seedling, machine are live, three kinds of machine surface plantings etc., and machine is live to have the operating efficiency height because of it, the abridged edition saving of labor, and advantage such as easy and simple to handle is subjected to the peasant day by day and welcomes.It is current a kind of advanced person's paddy rice machine direct seeding technique that essence is measured the cave live, and requiring accurately uniformly according to the plantation seeding row spacing paddy rice bud kind after the vernalization, cavitation is distributed in the field.China's Rice Production area is hybrid rice more than 50% at present, its direct-seeding planting requires significantly to be different from conventional rice, every mu of seeding quantity only is 1/3rd to 1/5th of conventional rice, every seed number per 2-3 grain, and grain is elongated, sphericity is little, because of bud kind out-of-shape, bud kind size difference significantly, reasons such as the bud root thin and delicately is entangled with, flow difficulties, cause the existing machinery seeding technique to be difficult to accurately control seed number per and cause seeding quantity bigger than normal, not only waste seed, and increase later stage agronomy management cost.Therefore, carry out the research of hybrid rice bud kind seeding technique and become needing badly of current agricultural production.Compare with mechanical type, because the air-flow rigidity is little, can reduce the mechanical damage to seed, can adapt to the variation of shape of the seed preferably, thereby in the precise sowing technical research, be used widely.
Chinese patent ZL200620028682.8 discloses a kind of double-disc air-suction type precision seed sowing device, this seeding unit has two and fills kind of a chamber, physical dimension is huger, this seeding unit does not adopt malleation that the seed that adsorbs on the suction hole is blowed simultaneously, and suction hole is easily stopped up by the tiny foreign material in the seed; Only has single suction hole on the seeds sucker of this seeding unit in addition, suction hole quantity is many, narrow and small at interval each other, be mainly used in the less accurate drilling operation of grain distance between the seed, be not suitable for carrying out the absorption of many seeds and the sowing requirement of smart amount and small quantities of seed.
The utility model content
The purpose of this utility model is in order to overcome the deficiency of above-mentioned technology, to provide a kind of and can reach a small amount of many seeds of absorption of essence amount and carry out the cavitation sowing and the fast two-chamber pneumatic type seeding unit of line-spacing adjustment.
The utility model is achieved through the following technical solutions:
A kind of bicavate pneumatic seeding, it by left air chamber 4, right air chamber 3, left seeds sucker 5, right seeds sucker 13, fill kind of chamber 12, discharging tube 9, feed shaft 7, seed inlet adjustable plate 2 and unload kind of piece 8 and form, described seeding unit axially is symmetrically installed with left and right seeds sucker and left and right air chamber respectively along feed shaft filling kind of the left and right sides, chamber, described feed shaft with fill coaxial the passing of kind of cavity axis and fill kind of a chamber.
In such scheme, described left air chamber 4, right air chamber 3 are mutual symmetrical housing; One side of housing has shape of a hoof groove, and opposite side has a negative pressure tracheae to chew with a malleation tracheae to chew.The negative pressure tracheae is chewed and is positioned at the gas chamber shell top, and interior cylindrical passage and shape of a hoof bottom portion of groove connect.The malleation tracheae is chewed and is positioned at the housing below, and the interior cylindrical passage runs through housing.
In such scheme, left seeds sucker 5, right seeds sucker 13 are mutual symmetrical disk of thin wall.Be distributed with the suction hole that distributes in groups on the disk, inhaling hole group number is the 10-15 group; Suction hole is that diameter is the aperture that penetrates disk of 1.0-2.5mm; Suction hole quantity is 1-3.The distribution form of suction hole is for along the disc radius direction equidistantly or be not equally spaced; On the same group between the suction hole apart from 6.5mm-20mm.The suction hole arranged around have with suction hole tangent stir kind of a tooth.
Described kind of the chamber 12 of filling is a short cylindrical shell body, at the housing two ends flange is arranged, have rectangular indentation along hull outside, one central angle is arranged is 150 ° circular-arc demarcation strip filling kind of cavity shell inside, the demarcation strip lower end is connected in inner walls by a connecting seat, will fill kind of a chamber and be divided into and filling kind and two zones of seeding; Demarcation strip arc back of the body institute is the seeding district to the zone, the recessed institute of demarcation strip arc to the zone for filling kind of a district; Filling kind of a district, the housing wall that fills kind of cavity shell is cut, and seed inlet is formed at top, and the bottom forms unloads kind of a mouth; In the seeding district, fill kind of a cavity shell below and have sowing port.
Described discharging tube 9 can have two kinds to install and type of attachment, a kind ofly is made up of left discharging tube and right discharging tube, and left and right discharging tube is mutual symmetrical two half-cone funnels; Upper end and the seeding unit of left side discharging tube, right discharging tube fill kind of the sowing port of cavity shell lower end and link to each other, and the lower end of left discharging tube, right discharging tube can be swung around the vertical direction all around; Another kind is single conical funnel, its upper end with fill kind of the sowing port of cavity shell lower end with seeding unit and link to each other, it can be swung around the vertical direction all around.
Described seed inlet adjustable plate 2 is a curved cover plate, is installed on to fill kind of cavity shell top, can be affixed on and fills kind of a cavity shell surface rotation around filling kind of a cavity axis, fills kind of upper end, a chamber seed inlet size thereby change, and its effect is to regulate kind of amount.
Describedly unload kind of piece 8 by hairbrush 14 and unload kind of cover plate 15 and forms, be installed on and fill kind of a cavity shell below, can be around unloading the top-right bolt hole of kind of a cover plate (15) along rotating clockwise and counterclockwise.
Operation principle of the present utility model is: the negative pressure tracheae behind the air chamber of the left and right sides is chewed to chew respectively with the malleation tracheae and is communicated with negative-pressure air-flow active region, malleation air-flow active region.During seeding unit work, chew to chew in left and right sides seeds sucker air chamber behind with the malleation tracheae by the negative pressure tracheae and introduced negative-pressure air-flow and malleation air-flow simultaneously, turn round simultaneously when feed shaft drives left and right sides seeds sucker mounted thereto, when the suction hole on the seeds sucker enters the negative-pressure air-flow active region, under the Pascal's law effect, negative-pressure air-flow will fill seed in kind of the chamber by the suction hole on the seeds sucker and be adsorbed on the suction hole and with seeds sucker and turn round; When the suction hole on the seeds sucker entered malleation air-flow The corresponding area, positive pressure gas stream blowed by the seed of suction hole to the absorption of seeds sucker face, discharges thereby make seed leave the seeds sucker face and fall into grain conductor; Owing to this pneumatic type seeding unit has the two symmetrical groups seeds sucker, it inhales the amount of kind is the twice of single-deck seeding unit, simultaneously owing to the strict symmetric arrangement of suction hole on two seeds suckers, therefore can realize inhaling simultaneously and plant and seeding simultaneously; In addition, be equipped with at seeds sucker and stir kind of a tooth, when seeds sucker turns round, have certain thickness because stirring kind of a tooth, exceed the seeds sucker face, when moving in its kind subgroup in filling kind of chamber, can stir seed, make the seed heap become loose, simultaneously can produce the propelling movement effect to the seed of being close to card, thereby reduce the speed difference between seed and seeds sucker, improve and inhale kind of a probability.
Be compared with the prior art, the utility model can fully show its superiority: the utility model is applicable to precise hole sowing or the drilling of crops such as paddy rice, corn, cotton and beans, inhaling kind of an amount is the twice of single-deck pneumatic type seeding unit, still can keep when improving amount of seed metering but seeds sucker is inhaled the advantage that kind of precision is done; Its absorption seeding mode can freely be changed between single-deck absorption and double plate absorption, sows line-spacing and can realize by change discharging tube position, and is easy to adjust, and the simple in structure and cost of seeding unit is low etc.
Description of drawings
Fig. 1,2: structural representation of the present utility model (Fig. 1 is front view, and Fig. 2 is end view).
Fig. 3,4,5: left air chamber structure schematic diagram (Fig. 3 is front view, and Fig. 4 is vertical view, and Fig. 5 is end view).Right air chamber and its be left-right symmetry vertically.
Fig. 6: seeds sucker structural representation.
Fig. 7,8: fill kind of a cavity configuration schematic diagram (Fig. 7 is front view, and Fig. 8 is vertical view).
Fig. 9,10,11,12,13,14: discharging tube structural representation (Fig. 9,10,11 is front view, and Figure 12,13,14 is corresponding vertical view).
Figure 15,16: seed inlet adjustable cap plate structure schematic diagram (Figure 15 is front view, and Figure 16 is vertical view).
Figure 17,18: unload kind of a block structure schematic diagram (Figure 17 is front view, and Figure 18 is end view).
Reference numeral: 1-seed-box, 2-seed inlet adjustable plate, the right air chamber of 3-, 4-left side air chamber, 5-left side seeds sucker, 6-stirs kind of a tooth, and 7-feed shaft, 8-unload kind of a piece, 9-discharging tube, 10-left side mount pad, the right mount pad of 11-, 12-fills kind of a chamber, the right seeds sucker of 13-, 14-hairbrush, 15-unload kind of a cover plate.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail, but this embodiment should not be construed as restriction of the present utility model.
Present embodiment provides a kind of bicavate pneumatic seeding, its general structure is as shown in Figure 1, 2: by left air chamber 4, right air chamber 3, left seeds sucker 5, right seeds sucker 13, fill kind of chamber 12, discharging tube 9, feed shaft 7, seed inlet adjustable plate 2, unload kind of piece 8 and form, it is characterized in that: described seeding unit axially is symmetrically installed with left and right sides seeds sucker and left and right sides air chamber respectively along feed shaft filling kind of the left and right sides, chamber, described feed shaft with fill coaxial the passing of kind of cavity axis and fill kind of a chamber.
This bicavate pneumatic seeding left side air chamber 4, right air chamber 3 structures are shown in Fig. 3,4,5: left and right sides air chamber is mutual symmetrical housing; One side of housing has shape of a hoof groove, and opposite side has a negative pressure tracheae to chew with a malleation tracheae to chew; The negative pressure tracheae is chewed and is positioned at the gas chamber shell top, and interior cylindrical passage and shape of a hoof bottom portion of groove connect; The malleation tracheae is chewed and is positioned at the housing below, and the interior cylindrical passage runs through housing.
Above-mentioned left seeds sucker 5, right seeds sucker 13, its structure be as shown in Figure 6: left and right sides seeds sucker is mutual symmetrical disk of thin wall; Be distributed with the suction hole that distributes in groups on the disk, inhaling hole group number is the 10-15 group; Suction hole is the aperture that penetrates disk of diameter 1.0mm-2.5mm; Suction hole quantity is 1-3; The distribution form of suction hole is for along the disc radius direction equidistantly or be not equally spaced; On the same group between the suction hole apart from 6.5mm-20mm; Around the suction hole and be furnished with suction hole tangent stir kind of a tooth.
Above-mentioned fills kind of chamber 12 structures shown in Fig. 7,8: it is a short cylindrical shell body, at the housing two ends flange is arranged, and has rectangular indentation along hull outside; One central angle is arranged is 150 ° circular-arc demarcation strip filling kind of cavity shell inside, and the demarcation strip lower end is connected in inner walls by a connecting seat, will fill kind of a chamber and be divided into and filling kind and two zones of seeding; Demarcation strip arc back of the body institute is the seeding district to the zone, the recessed institute of demarcation strip arc to the zone for filling kind of a district; Filling kind of a district, the housing wall that fills kind of cavity shell is cut, and seed inlet is formed at top, and the bottom forms unloads kind of a mouth; In the seeding district, fill kind of a cavity shell below and have sowing port.
Above-mentioned discharging tube structure is shown in Fig. 9,10,11,12,13,14: it has two kinds of types of attachment, a kind ofly is made up of left discharging tube, right discharging tube, and left and right sides discharging tube is symmetrical two half-cone funnels (shown in Fig. 9,10,12,13) mutually; Upper end and the seeding unit of left side discharging tube, right discharging tube fill kind of the sowing port of cavity shell lower end and link to each other, and the lower end of left discharging tube, right discharging tube can be swung around the vertical direction all around; Another kind is single conical funnel, its upper end with fill kind of the sowing port of cavity shell lower end with seeding unit and link to each other, it can swing (shown in Figure 11,14) around the vertical direction all around.
Above-mentioned seed inlet adjustable plate 2 structures are shown in Figure 15,16: it is a curved cover plate, is installed on to fill kind of cavity shell top, can be affixed on and fills kind of a cavity shell surface rotation around filling kind of a cavity axis, fills kind of upper end, a chamber seed inlet size thereby change, and regulates kind of amount.
Above-mentioned unloads kind of piece 8 structures shown in Figure 17,18: it is by hairbrush 14 and unload kind of cover plate 15 and forms, is installed on and fills kind of a cavity shell below, can be around unloading kind of cover plate 15 top-right bolts hole along rotating clockwise and counterclockwise.
The course of work of the present utility model is as follows:
This seeding unit is when work, unclamp seed inlet adjustable plate set bolt, along fill kind of cavity shell rotary setting in seed-box bottom, be attached at and fill the seed inlet adjustable plate that kind of cavity outer wall is arranged, the seed inlet adjustable plate is changed along the length that overhangs of filling kind of chamber sidewall opening, thereby seed-box bottom lower ending opening is changed, and then adjusting enter the grain weight of filling kind of the chamber from seed-box.Seeds sucker is provided with and stirs kind of tooth 3 one sides to filling kind of a chamber in use, fills in kind of the chamber rice paddy seed is housed; Do not have that to stir kind of tooth one side be suction muffler and air blowing chamber in the air chamber; Air pressure is chewed UNICOM less than atmospheric pressure with the negative pressure pipe in the suction muffler; Air pressure is higher than atmospheric pressure in the air blowing chamber, chews UNICOM with forward voltage diode.Therefore, there is pressure difference in suction muffler, the air blowing of filling on kind of chamber and the air chamber between the chamber.In seeding unit when work,, external impetus passes to feed shaft, and then drives the seeds sucker revolution, and the suction hole on the seeds sucker successively will fill kind of chamber and suction muffler, air blowing chamber UNICOM.When suction hole and suction muffler UNICOM, by Pascal's law as can be known, under the intake negative-pressure effect, air-flow flows into a suction muffler from filling kind of chamber, will fill rice paddy seed in kind of the chamber simultaneously and be adsorbed on the suction hole on the seeds sucker.Under above-mentioned absorption affinity effect, rice paddy seed returns back to the air blowing chamber with seeds sucker.There is air-flow to blow to suction hole from the air blowing chamber in the air blowing chamber, suction hole 2 enters the seeding district on the seeds sucker 1 at this moment, under the airflow blow effect, seed is blown from suction hole 2, when suction hole 2 distributes on seeds sucker 1 in groups, because there is the interval each other in suction hole, therefore, seed falls within the face of land according to certain intervals in groups, thereby is embodied as the bunch planting kind.
Because this seeding unit has two identical air chambers, can be achieved as follows 3 kinds of suction kind modes: when the complete left-right symmetry of two seeds suckers is installed, can guarantee that two seeds suckers are inhaled kind synchronously and seeding; When two seeds suckers stagger half when inhaling that angle is installed between the group of hole, can guarantee that two seeds suckers replace seeding, can be with bunch planting amount and cave apart from reducing half simultaneously.No matter seeds sucker is consistent is installed or the installation of staggering, and all can only adopt single seeds sucker to inhale and plant and seeding, half when its bunch planting amount is worked simultaneously for two seeds suckers, its cave distance is identical when working simultaneously with two seeds suckers.
Unload kind of curved cover plate when seeding unit fills unloading of below, kind of chamber when its top-right bolt hole turns clockwise on kind of the piece, fill kind of kind of the mouth that unloads of below, chamber and open, the seed that fills all can be discharged from unload kind of mouth in kind the chamber in, kind is unloaded in realization fast.Owing at kind of the curved cover plate that unloads that unloads on kind of the piece hairbrush is installed, when unloading kind of curved cover plate along clockwise direction or counterclockwise rotate, hairbrush can be cleared up the suction hole on the seeds sucker simultaneously, prevents from inhaling the hole and is stopped up by tiny foreign material.
Two half cone-shaped grain conductors can be installed under the seeding unit, and the seed of discharging on the seeds sucker can be discharged respectively from two grain conductors, regulates the left and right sides relative position of two grain conductors, can change the interseminal line-spacing of adjacent two row; When a grain conductor is installed in the seeding unit below, the seed of discharging on two seeds suckers can be pooled delegation and discharge.
This seeds sucker can be realized the precise hole sowing of crops such as paddy rice, corn, cotton, beans, vegetables and tobacco, owing on the seeds sucker 1-3 hole can be set, therefore can control every cave seeding quantity 2-8 grain, can stir kind of tooth 3, change the diameter of suction hole 2 and organize number by removing guiding, single seeds sucker seeding, two seeds sucker seedings etc. realize the sowing requirement of the different caves of Different Crop distance, different seeding quantitys, and practical ranges is extensive.
Above embodiment has been described basic principle of the present utility model and principal character, illustrates advantage of the present utility model.The utility model is not subjected to the restriction of above-mentioned embodiment, and in the protection domain of spirit of the present utility model and claim, any modification and change to the utility model is made all fall in the protection domain of the present utility model.
Claims (8)
1. bicavate pneumatic seeding, it is characterized in that: described seeding unit by left air chamber (4), right air chamber (3), left seeds sucker (5), right seeds sucker (13), fill kind of a chamber (12), discharging tube (9), feed shaft (7), seed inlet adjustable plate (2) and unload kind of a piece (8) and form, seeding unit axially is symmetrically installed with left seeds sucker (5), right seeds sucker (13) and left air chamber (4) and right air chamber (3) respectively along feed shaft filling kind of the left and right sides, chamber, and described feed shaft (7) passes and fills kind of a chamber (12) along filling kind of a cavity axis.
2. a kind of bicavate pneumatic seeding as claimed in claim 1, it is characterized in that: described left air chamber (4), right air chamber (3) are mutual symmetrical housing, one side of housing has shape of a hoof groove, and opposite side has a negative pressure tracheae to chew with a malleation tracheae to chew; The negative pressure tracheae is chewed and is positioned at the gas chamber shell top, and interior cylindrical passage and shape of a hoof bottom portion of groove connect; The malleation tracheae is chewed and is positioned at the housing below, and the interior cylindrical passage runs through housing.
3. a kind of bicavate pneumatic seeding as claimed in claim 1, it is characterized in that: described left seeds sucker (5), right seeds sucker (13) they are mutual symmetrical disk of thin wall; Be distributed with the suction hole that distributes in groups on the disk, inhaling hole group number is the 10-15 group; Suction hole is that diameter is the aperture that penetrates disk of 1.0-2.5mm; Suction hole quantity is 1-3; The distribution form of suction hole is for along the disc radius direction equidistantly or be not equally spaced; Distance is 6.5-20mm between the suction hole on the same group; The suction hole arranged around have with suction hole tangent stir kind of a tooth.
4. a kind of bicavate pneumatic seeding as claimed in claim 1, it is characterized in that: described kind of the chamber (12) of filling is a short cylindrical shell body, at the housing two ends flange is arranged, and has rectangular indentation along hull outside; One central angle is arranged is 150 ° circular-arc demarcation strip filling kind of cavity shell inside, and the demarcation strip lower end is connected in inner walls by a connecting seat, will fill kind of a chamber and be divided into and filling kind and two zones of seeding; Demarcation strip arc back of the body institute is the seeding district to the zone, the recessed institute of demarcation strip arc to the zone for filling kind of a district; Filling kind of a district, the housing wall that fills kind of cavity shell is cut, and seed inlet is formed at top, and the bottom forms unloads kind of a mouth; In the seeding district, fill kind of a cavity shell below and have sowing port.
5. a kind of bicavate pneumatic seeding as claimed in claim 1, it is characterized in that: described discharging tube (9) is made up of left discharging tube and right discharging tube, and left and right discharging tube is symmetrical two half-cone funnels mutually; Upper end and the seeding unit of left side discharging tube, right discharging tube fill kind of the sowing port of cavity shell lower end and link to each other, and swing around the vertical direction all around lower end of left discharging tube, right discharging tube.
6. as claim 1 or 5 described a kind of bicavate pneumatic seedings, it is characterized in that: described discharging tube (9) is single conical funnel, its upper end with fill kind of the sowing port of cavity shell lower end with seeding unit and link to each other, it is swung around the vertical direction all around.
7. a kind of bicavate pneumatic seeding as claimed in claim 1, it is characterized in that: described seed inlet adjustable plate (2) is a curved cover plate, be installed on and fill kind of a cavity shell top, seed inlet adjustable plate (2) is affixed on and fills the rotation of kind of cavity shell surface around filling kind of a cavity axis, fill kind of upper end, a chamber seed inlet size thereby change, to reach the purpose of regulating kind of amount.
8. a kind of bicavate pneumatic seeding as claimed in claim 1, it is characterized in that: describedly unload kind of a piece (8) by hairbrush (14) and unload kind of a cover plate (15) and form, be installed on and fill kind of a cavity shell below, unload kind of a piece (8) around unloading the top-right bolt hole of kind of a cover plate (15) along clockwise and rotation counterclockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320193226 CN203194129U (en) | 2013-04-17 | 2013-04-17 | Double-chamber type pneumatic seed sowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320193226 CN203194129U (en) | 2013-04-17 | 2013-04-17 | Double-chamber type pneumatic seed sowing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203194129U true CN203194129U (en) | 2013-09-18 |
Family
ID=49138278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320193226 Expired - Fee Related CN203194129U (en) | 2013-04-17 | 2013-04-17 | Double-chamber type pneumatic seed sowing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203194129U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107258165A (en) * | 2017-06-27 | 2017-10-20 | 中国农业大学 | One Room duplicate rows pneumatic seeder |
| CN109496504A (en) * | 2018-11-07 | 2019-03-22 | 华中农业大学 | Double plate high speed Pneumatic type bud kind precise seeder |
| CN110393064A (en) * | 2019-08-01 | 2019-11-01 | 华中农业大学 | Opposed swash plate high speed Pneumatic type bud kind precise seeder |
| CN110431961A (en) * | 2019-09-11 | 2019-11-12 | 黑龙江八一农垦大学 | The precisely positive/negative-pressure dibbling device of plantation seeder |
| CN113396673A (en) * | 2021-07-08 | 2021-09-17 | 华南农业大学 | Double-disc integrated seed sowing device |
-
2013
- 2013-04-17 CN CN 201320193226 patent/CN203194129U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107258165A (en) * | 2017-06-27 | 2017-10-20 | 中国农业大学 | One Room duplicate rows pneumatic seeder |
| CN109496504A (en) * | 2018-11-07 | 2019-03-22 | 华中农业大学 | Double plate high speed Pneumatic type bud kind precise seeder |
| CN110393064A (en) * | 2019-08-01 | 2019-11-01 | 华中农业大学 | Opposed swash plate high speed Pneumatic type bud kind precise seeder |
| CN110431961A (en) * | 2019-09-11 | 2019-11-12 | 黑龙江八一农垦大学 | The precisely positive/negative-pressure dibbling device of plantation seeder |
| CN110431961B (en) * | 2019-09-11 | 2022-07-19 | 黑龙江八一农垦大学 | Positive and negative pressure point planting device of precise planting seeder |
| CN113396673A (en) * | 2021-07-08 | 2021-09-17 | 华南农业大学 | Double-disc integrated seed sowing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103416136B (en) | Dual-cavity type pneumatic seed sowing device | |
| CN203194129U (en) | Double-chamber type pneumatic seed sowing device | |
| CN204157264U (en) | Pneumatic type sowing metering system | |
| CN102349382B (en) | Pneumatic dibbling seed feeding device | |
| CN103503616A (en) | Air-suction roller-type precision seed metering device suitable for small particle seeds of various shapes | |
| CN203675584U (en) | Airflow disturbance precise seed-metering device | |
| CN109496504A (en) | Double plate high speed Pneumatic type bud kind precise seeder | |
| CN107318318A (en) | The adjustable Pneumatic seeding apparatus of one kind amount of broadcasting | |
| CN105359685B (en) | A kind of vapour-pressure type seeder uniform low damage air-channel system and air current composition method | |
| CN203537802U (en) | One-device double-row pneumatic type precision seed sowing device for rape and wheat | |
| CN107736112B (en) | Mechanical and pneumatic combined vegetable precision seed sowing device | |
| CN104541696B (en) | Air suction metering device | |
| CN103749049A (en) | Internal seed filled pneumatic line type accurate seed sowing device | |
| CN104303651A (en) | Pneumatic seed protection type precision concentrated seeding device | |
| CN102714959A (en) | A pneumatic wheat precise seed-metering device | |
| CN105746053A (en) | Centralized seed sowing device of seeder | |
| CN115702615A (en) | High-speed air suction precision seed metering device | |
| CN2824536Y (en) | Air current delivered seed-sowing apparatus | |
| CN203968638U (en) | Pneumatic type can be expanded combination precision planter | |
| CN108541426A (en) | A kind of novel outer pocket air-sweeping type einkorn precision wheat feed mechanism for seed | |
| CN206923268U (en) | The adjustable Pneumatic seeding apparatus of one kind amount of broadcasting | |
| CN205196281U (en) | Defeated kind of seeder of strength | |
| CN204047113U (en) | A kind of air-sucking type cylinder seeder | |
| CN205161098U (en) | Vapour -pressure type seeder is low gas circuit system of decreasing evenly | |
| CN205454540U (en) | Seed metering ware is concentrated to seeder |
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: 20130918 Termination date: 20160417 |