CN111919549A - Pneumatic type slideway seed sowing device - Google Patents
Pneumatic type slideway seed sowing device Download PDFInfo
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- CN111919549A CN111919549A CN202010726631.7A CN202010726631A CN111919549A CN 111919549 A CN111919549 A CN 111919549A CN 202010726631 A CN202010726631 A CN 202010726631A CN 111919549 A CN111919549 A CN 111919549A
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- seed
- seeds
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- negative pressure
- sowing device
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- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
Abstract
The invention relates to a pneumatic type slideway seed sowing device, belongs to the technical field of agricultural machinery, and combines pneumatic type and mechanical type to realize mechanical seed taking and cooperative seed carrying. A pneumatic slideway type seed sowing device comprises a seed sowing device shell, a seed chamber, a seed sowing disk, a gas cut-off stop block and a hollow shaft. Wherein the seeding plate is provided with evenly distributed slideway grooves with the same number as the duckbills, and the tail ends of the slideways are provided with shaped holes communicated with the negative pressure cavity. When seeds are taken, the seeds of 2-3 enter the slide groove by means of self gravity and extrusion force between the seeds, the slide groove rotates along with the seed discharging plate to finish self seed cleaning, when a certain angle is reached, the negative pressure of the molding hole disappears, and the seeds are thrown under the action of self gravity. The invention can effectively adapt to the external dimension of seeds, improve the seed filling efficiency, reduce the miss-seeding rate, improve the seeding qualification rate of the seed-metering device and meet the requirement of precision seeding.
Description
Technical Field
The invention relates to a seed sowing device, in particular to a pneumatic type slideway seed sowing device for seeds with medium particle diameters such as peanuts, soybeans, cotton and the like, and belongs to the field of agricultural mechanical engineering.
Background
Precision seeding has the advantages of saving seeds, reducing thinning operation and the like, and mechanical precision seeding is widely used as a main mode for planting crops such as peanuts, cotton and the like. The seeding apparatus is a core component for realizing precision seeding technology, and the quality of the working performance of the seeding apparatus directly influences the seeding quality. The seeding apparatus mainly comprises a mechanical seeding apparatus and a pneumatic seeding apparatus, and due to the design and use condition limitations of the seeding apparatus, the seeding apparatus of the two types can have the problem of seeding missing in different degrees.
Aiming at the problems that a mechanical seed sowing device has higher requirements on the shape and the size of seeds and has the phenomenon of missed sowing, and the pneumatic seed sowing device is centered, the adsorption rate of the seeds with large particle size is low, the fan requirement is higher and the like, the pneumatic slide type seed sowing device which combines the pneumatic type and the mechanical type to realize mechanical seed taking and synergistic seed taking is invented, the thought of 'taking three and leaving one' is adopted to realize ordered seed filling, the missed filling rate is reduced, the sowing efficiency is improved, the crop income increasing and yield increasing are realized, and the pneumatic slide type seed sowing device has important significance for the modern development of agriculture in China.
Disclosure of Invention
The invention aims to provide a pneumatic slide-way seed sowing device which can take a plurality of seeds (2-3 seeds) in order and can ensure precise sowing.
Aiming at the problems, the invention aims to provide a pneumatic slideway seed sowing device, which combines the seed taking principles of a pneumatic seed sowing device and a mechanical seed sowing device to realize mechanical seed taking and cooperative seed carrying. Because the mobility of the seed group is small, the groove slide ways 6 on the seed discharging disc are arranged into a V-shaped structure, so that the seed group can more easily enter the groove slide ways 6 under the action of gravity, secondly, in order to avoid the seed clamping phenomenon when the seeds enter the groove slide ways, the cambered surface bosses 7 are arranged on the V-shaped groove slide ways 6, the seeds entering the V-shaped groove slide ways 6 are erected above the cambered surface bosses 7, along with the rotation of the seed discharging device, the seeds roll to the tail ends of the V-shaped groove slide ways 6 along the V-shaped groove slide ways 6, the single seeds close to the tail ends are adsorbed by the profile holes 8 under the action of negative pressure and gravity, and the cambered surface bosses 7 have certain supporting force on the adsorbed seeds, so that the seeds are prevented from falling into the seed chambers in the rotating process, along with the continuous rotation of the seed discharging disc, the seeds which are not adsorbed by the profile holes 8 can roll to the seed chambers 13 along the inclined planes of the V-, the process of self-cleaning seeds is completed, so that only single seeds are contained in the V-shaped groove slide 6, the negative pressure is blocked by the air-blocking stop block 11 along with the rotation of the seed discharging plate to a certain area, and finally the seeds fall down by the gravity of the seeds and enter the duckbill mechanism, and when the duckbill 16 is opened, the seeds fall into the seed hole dug by the seed protection baffle 18, and one-time seed throwing is completed.
In order to achieve the above-mentioned object, the seed sowing device of the present invention adopts the following specific structure.
A pneumatic slideway seeding apparatus comprises a seeding apparatus shell, a seed chamber 13, a seeding disc 5, a gas-cut stop 11 and a shaft 12.
The seed metering disc 5 is arranged in the shell of the seed metering device and is fixed on an outer fixed disc 19 of the seed metering device; the shaft 12 is arranged in the center of the shell of the seed metering device; the air-break baffle 11 is arranged in the negative pressure air chamber of the seed plate 5; the seed chamber 13 is arranged at the upper half part in the shell of the seed metering device and is fixed on the front end cover 3 of the seed metering device.
The seed metering device, wherein: the shell of the seeding apparatus consists of an outer moving ring 4, a front end cover 3, an outer fixed disc 19 and a belt device, wherein the outer fixed disc 19 is a circular bottom plate, a circular hole for placing a bearing is formed in the center of the outer fixed disc, a groove is milled on the periphery of the bearing hole, and threaded holes are uniformly distributed in the groove and used for fixing the seeding disc 5; the waistband 14 is welded on the outer fixed plate 11, a square seed outlet is distributed on the outer wall of the waistband, and round holes are drilled around the seed outlet and used for fixing the duckbill mechanism; the outer moving coil 4 is fixed through bolts. On the outer fixed plate 19, the waist belt 14 is clamped between the two; the front end cover 3 is provided with a seed inlet and two visual windows 2 on the end cover, and the visual windows 2 are provided with transparent cover plates fixed through bolts.
The seed metering device, wherein: seed metering dish 5 is located the seed metering ware casing inside, fixes a position through axle 12, fixes on outer fixed disk 19, the equipartition has "V" type slide recess 6 unanimous with duckbilled quantity on the seed metering dish 5, and the slide end is provided with the type hole 8 in intercommunication negative pressure chamber, the type hole 8 bottom is bored has the round hole that communicates with each other with negative pressure air chamber, for type hole 8 provides the negative pressure in order adsorbing the seed, "is provided with cambered surface boss 7 in the V" type slide recess 6, and seed metering dish 5 begins to mill from a terminal surface has the inner chamber, constitutes the enclosure space with sealed lid 10 to link to each other with fan negative pressure trachea through axle 12 and form negative pressure air chamber.
The seed metering device, wherein: the seed chamber 13 is positioned at the upper half part in the seed metering device shell, is connected with the seed inlet 20, is made of thin-wall stainless steel, is fixed on the front end cover 3 of the seed metering device through bolts, the left side of the seed chamber 13 is provided with an inclined plane of an inverted triangle structure, is attached to the disc surface of the seed metering disc 5, and the right side of the seed chamber is provided with an inclined plane and is also attached to the disc surface of the seed.
The seed metering device, wherein: the duckbilled mechanisms are fixed on the outer side of the belt 14 through bolts, and the number of the duckbilled mechanisms is consistent with that of seed throwing ports of the belt 14 of the seed sowing device.
The invention has the beneficial effects.
The invention relates to a pneumatic slideway seed sowing device which can realize the precision sowing of seeds with irregular shapes of medium and large grains.
The invention combines the principles of pneumatic and mechanical seed sowing devices, uses the V-shaped groove slideway to take seeds orderly, uses negative pressure airflow and the mechanical cambered surface boss to cooperatively seed, avoids the problems of stable airflow, insufficient adsorption force and seed falling, effectively improves the seed filling efficiency, and greatly reduces the miss-seeding rate.
The cambered surface boss is arranged in the groove of the V-shaped slideway, so that the phenomenon of seed clamping can be avoided when seeds enter the slideway.
The V-shaped slide groove can ensure that seeds orderly slide to the profile hole at the tail end along the slide when the seeds are filled, can realize self-cleaning of the slide groove, and reduces the reseeding rate while improving the seed filling rate.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an exploded view of the overall structure of the present invention.
FIG. 3 is a schematic view of a seed plate according to the present invention.
FIG. 4 is a cross-sectional view of a seed metering disk of the present invention.
FIG. 5 is a schematic view of a chamber of the present invention.
Figure 6 is a schematic view of a waistband construction of the present invention.
FIG. 7 is a schematic view of the gas block structure of the present invention.
Fig. 8 is a schematic axial view of the present invention.
Wherein: 1-seed inlet pipe; 2-a visible window; 3-front end cover; 4-external moving coil; 5-a seed discharging plate; 6- "V" type groove slideway; 7-cambered surface boss; 8-shaped holes; 9-seed throwing; 10-a seed metering device sealing ring cover plate; 11-a gas-cut-off block; 12-axis; 13-chamber; 14-waistband; 15-seed throwing; 16-duckbill; 17-duckbill springs; 18-seed protection baffle; 19-external fixed plate of seed sowing device.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The invention relates to a pneumatic slideway seed sowing device, which comprises a seed sowing device shell, a seed chamber 13, a seed sowing disk 5, a gas cut-off stop block 11 and a shaft 12.
The shell of the seed metering device comprises an outer moving coil 4 of the seed metering device, a front end cover 3, an outer fixed disc 19 and a belt device. The outer fixed disk 19 of the seed sowing device is a circular bottom plate, the center of the outer fixed disk is provided with a bearing hole, and the shaft 12 is positioned and arranged at the center of the outer fixed disk 19 through a bearing so as to realize the function that the shaft 12 does not rotate along with the outer fixed disk 19. The waistband 14 is a cylindrical thin plate and is welded on the inner side of the outer fixed disc 19, square seed throwing ports are uniformly distributed on the periphery of the waistband, bolt holes are drilled at adjacent positions of four corners of each seed throwing port, and the duckbill mechanism is fixed on the outer side of the waistband 14 of the seed sowing device through the bolt holes. The outer moving coil 4 is connected with an outer fixed disc 19 through a bolt, and a waistband 14 is arranged between the outer moving coil and the outer fixed disc 19; the front end cover 3 is sleeved on the shaft 12, the upper surface of the front end cover 3 is provided with a seed inlet 20 and two visual windows 2, the seed inlet 20 is provided with a seed inlet pipe 1, seeds can enter the seed metering device chamber 13 through the seed inlet pipe 1, the visual windows 2 are provided with transparent cover plates fixed through bolts, and the transparent cover plates can be used for observing the seed filling and seed throwing conditions of the V-shaped groove slide ways 6 in the running process of the seed metering device. The arc-surface lug boss 7 is arranged on the V-shaped groove slide 6, so that the effect of making the seeds aerial (aerial means that the seeds are not dropped to the bottom end of the slide groove) and supporting the seeds is achieved, and the seeds can still run to a seed feeding area under the supporting effect of the arc-surface lug boss 7 when the negative pressure is unstable in the running process of the seed sowing device.
The shaft 12 is positioned by a bearing, is arranged on an outer fixed disc 19, is a hollow shaft, and is provided with a round hole at the tail end for connecting a fan negative pressure air pipe and a negative pressure air chamber of the seed sowing disc 5, and is a negative pressure air flow channel.
The seed discharging plate 5 is provided with a V-shaped groove slide way 6 which is matched with an inverted triangular structure at the left part of the seed chamber 13, so that 2-3 seeds can be taken when the seed group rotates to be basically level with the seed chamber through the V-shaped groove slide way 6, and the seed taking rate is improved; the tail end of the V-shaped groove slideway 6 is provided with a shaped hole 8, so that the seed plate 5 adsorbs single seeds at the tail end of the slideway, an inner cavity is milled at one end of the seed plate 5 and is connected with a negative pressure air pipe of a fan through a shaft 12 to form a negative pressure air chamber, the upper part of the negative pressure air chamber is provided with a sealing cover plate 10, and a round hole communicated with the negative pressure air chamber is drilled at the bottom of the shaped hole 8 to provide negative pressure for the shaped hole 8 to adsorb the seeds. The lower part of the negative pressure air chamber of the seed sowing plate 5 is drilled with a threaded hole and is connected with the outer fixed plate 19 through a bolt, so that the seed sowing plate is fixedly connected on the outer fixed plate 19 to realize synchronous rotation with the outer fixed plate 19.
The air-break stop 11 is formed by welding a steel plate and an arc-shaped plate, the tail end of the steel plate is welded on the shaft shoulder of the shaft 12, and the arc-shaped plate is attached to the inner wall of the negative pressure air chamber of the seed-metering disc 5 to block the negative pressure in the hole, so that the seed-metering disc 5 is not adsorbed by the negative pressure when being transferred to a seed-feeding area, and seed feeding is realized.
The seed chamber 13 is made of thin stainless steel, the upper surface of the seed chamber is drilled with a threaded hole, the seed chamber is connected with the front end cover 3 of the seed sowing device through a bolt and is positioned at the middle upper part of the plate surface of the seed sowing plate, an inverted triangle structure is arranged between the front end cover 3 and the seed sowing plate 5, and the lower left side of the seed chamber 13 is attached to the plate surface of the seed sowing plate, so that the seed flow gathering effect is achieved. The right side is set as an inclined plane, so that the seeds falling from the seeds cleaning in the V-shaped slideway groove 6 slide to the left chamber through the inclined plane.
When the seeding apparatus works, the working process is as follows: seeds enter a seed chamber 13 through a seed inlet pipe 1, the seeds are loaded on cambered surface bosses 7 of V-shaped groove slideways 6 under the action of gravity and interspecies extrusion force, the slideway structure is set to be a V-shaped structure, so that the seeds can more easily enter the groove slideways 6 under the action of gravity, secondly, in order to avoid the seed clamping phenomenon when the seeds enter the groove slideways, the cambered surface bosses 7 are arranged on the V-shaped groove slideways 6, the seeds entering the V-shaped groove slideways 6 are erected above the cambered surface bosses 7, along with the rotation of a seed sowing device, the seeds roll to the tail ends of the V-shaped groove slideways 6 along the V-shaped groove slideways 6, single seeds close to the tail ends are adsorbed by profile holes 8 under the action of negative pressure and gravity, and the seed sowing bosses 7 have certain supporting force for the adsorbed seeds, so that the seeds are prevented from falling into the seed chamber in the rotation process and continuously rotate along with a seed disc, seeds which are not adsorbed by the shaped holes 8 can roll down to the chamber 13 along the inclined plane of the V-shaped groove slide way 6 to finish the self-cleaning process, so that only single seeds are contained in the V-shaped groove slide way 6, the negative pressure is blocked by the air-cut-off stop block 11 when the seeding plate rotates to a certain area, and finally the seeds fall down by the self gravity to enter a seed feeding area to finish one-time seed feeding.
Claims (3)
1. A pneumatic slideway type seed sowing device comprises a seed sowing device shell, a seed chamber, a seed sowing disc, a gas cut-off stop block and a hollow shaft; the shell of the seeding unit consists of an outer moving ring, a front end cover, an outer fixed disc and a belt; the equipartition has the slide recess the same with duckbilled quantity on the seed metering dish, and the slide recess is "V" type structure, and the seed can arrange in order in "V" type slide recess, and the seed metering dish mills has the inner chamber, constitutes negative pressure air chamber with sealed lid and outer fixed plate, "V" type slide recess end is equipped with the type hole, type hole bottom is bored and is had the communicating round hole with negative pressure air chamber, provides the negative pressure for the type hole and in order to adsorb the seed.
2. The seed meter of claim 1, wherein: "V" type slide recess inner wall both sides are equipped with the cambered surface boss, can effectively avoid the card kind phenomenon with the seed frame on both sides cambered surface boss when getting kind, and according to different seed size of a dimension, can set up the different intervals of cambered surface boss.
3. The seed meter of claim 1, wherein: the seed sowing device is characterized in that the seed sowing chamber is made of thin-wall stainless steel and is fixed on a front end cover of the seed sowing device through a bolt; the seed room is located the seed metering dish first, and the left side sets up to the structure inclined plane of falling triangle-shaped into, laminates with the seed metering dish quotation, and the seed landing of being convenient for is to "V" type slide recess, improves and gets kind of rate, and the right is the inclined plane, makes "V" type slide recess from the seed of planting clearly dropping through the inclined plane landing to the room on the left side.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010726631.7A CN111919549B (en) | 2020-07-25 | 2020-07-25 | Pneumatic type slideway seed sowing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010726631.7A CN111919549B (en) | 2020-07-25 | 2020-07-25 | Pneumatic type slideway seed sowing device |
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| CN111919549A true CN111919549A (en) | 2020-11-13 |
| CN111919549B CN111919549B (en) | 2022-05-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112913391A (en) * | 2021-04-16 | 2021-06-08 | 吉林省农业机械研究院 | Seeding device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112913391A (en) * | 2021-04-16 | 2021-06-08 | 吉林省农业机械研究院 | Seeding device |
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| CN111919549B (en) | 2022-05-31 |
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