CN116114437A - Eight-row pneumatic precision seed metering device - Google Patents

Eight-row pneumatic precision seed metering device Download PDF

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Publication number
CN116114437A
CN116114437A CN202310175644.3A CN202310175644A CN116114437A CN 116114437 A CN116114437 A CN 116114437A CN 202310175644 A CN202310175644 A CN 202310175644A CN 116114437 A CN116114437 A CN 116114437A
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CN
China
Prior art keywords
seed
seed metering
air chamber
metering device
pressure area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310175644.3A
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Chinese (zh)
Inventor
余佳佳
陈雄飞
陶中岩
刘木华
刘俊安
蔡金平
肖丽萍
刘兆朋
方鹏
余国栋
陈晨晨
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Jiangxi Agricultural University
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Jiangxi Agricultural University
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Filing date
Publication date
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Priority to CN202310175644.3A priority Critical patent/CN116114437A/en
Publication of CN116114437A publication Critical patent/CN116114437A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/20—Parts of seeders for conducting and depositing seed
    • 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
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/04—Single-grain seeders with or without suction devices
    • A01C7/042—Single-grain seeders with or without suction devices using pneumatic means
    • A01C7/044—Pneumatic seed wheels
    • A01C7/046—Pneumatic seed wheels with perforated seeding discs
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/18—Machines for depositing quantities of seed at intervals
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Pretreatment Of Seeds And Plants (AREA)

Abstract

The invention discloses an eight-row pneumatic precise seed metering device, and relates to the technical field of seed metering devices. Comprising the following steps: a support base; the air chamber is arranged on the supporting base and is internally provided with a positive pressure area and a negative pressure area; the seed shaft is rotationally arranged on the air chamber; the two seed metering discs are clamped at two sides of the air chamber; the seed metering device is arranged on two sides of the air chamber, the seed metering device is arranged on the outer side of the seed metering disc and comprises a seed filling housing and a seed box, the seed filling housing is arranged on the air chamber, the seed box is arranged on one side of the seed filling housing far away from the air chamber, the position of the seed filling housing corresponding to the negative pressure area is communicated with the seed box through a seed filling opening, the position of the seed filling housing corresponding to the positive pressure area is provided with a seed metering opening, the seed metering opening is externally connected with four seed metering pipes, and the position of the inner side of the seed filling housing corresponding to the positive pressure area is also provided with a seed bearing plate. The invention realizes the purpose of seeding eight rows at one time by adopting the seed metering devices additionally arranged at the two sides of the air chamber, and has the advantages of high efficiency, simple structure and low cost.

Description

Eight-row pneumatic precision seed metering device
Technical Field
The invention relates to the technical field of seed metering devices, in particular to an eight-row pneumatic precision seed metering device.
Background
In 2019, the sowing area of crops in China is about 165930.66 kilohectares, most crops are planted in agriculture, and field plants are required to be uniformly and reasonably densely planted, so that the defects of fertilizer contention, water contention and light contention caused by uneven seedling distribution can be overcome effectively, the growth and development of the seedlings are facilitated, the ventilation and light transmission conditions of fields are improved, the lodging resistance is improved, and the yield and harvest are increased. In order to improve the level of mechanized operation and realize a whole-process mechanized production mode, the primary link is mechanized sowing; the mechanized sowing operation must meet the agronomic requirements, and seeds are sowed to the optimal positions in the soil layer in a hole-by-hole and equidistant mode by a sowing machine, namely, the precise sowing is realized.
At present, most of seed metering devices which can be used for mechanized sowing of round grain seeds are semi-precise sowing devices, such as grooved wheel type seed metering devices and the like. However, most of these seed metering devices can only seed in a single row, and one seed metering mechanism can only seed in one row, which is inefficient. Therefore, the design of the eight-row pneumatic precise seed sowing device has important practical significance.
Disclosure of Invention
The invention mainly aims to provide an eight-row pneumatic precise seed sowing device, which aims to solve the problems in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
an eight-row pneumatic precision seed metering device, comprising:
a support base;
the air chamber is arranged on the supporting base, and a positive pressure area and a negative pressure area are arranged in the air chamber;
the seed shaft is rotationally arranged at the center of the air chamber;
the number of the seed metering discs is two, the two seed metering discs are clamped on two sides of the air chamber and fixedly sleeved on the seed metering shaft, and seed filling holes are formed in the seed metering discs;
the seed metering device, seed metering device's quantity is two, two seed metering device detachable install in the both sides of air chamber, just seed metering device is located the outside of seed metering dish, seed metering device is including filling kind housing and seed case, fill kind housing install in on the air chamber, the seed case is located fill kind housing and keep away from one side of air chamber, fill kind housing correspond the position of negative pressure area through fill kind mouth with seed case intercommunication, fill kind housing correspond the position of positive pressure area is equipped with seed metering mouth, seed metering mouth external four seed pipes, fill kind housing inboard and correspond the position of positive pressure area still is equipped with and holds the seed board.
Further, the number of the positive pressure area and the negative pressure area is two, the positive pressure area and the negative pressure area are adjacently arranged, an air chamber partition plate is arranged between the positive pressure area and the negative pressure area, the positive pressure area is externally connected with a positive pressure air inlet pipe, and the negative pressure area is externally connected with a negative pressure air outlet pipe.
Further, an inner cylinder is arranged in the air chamber, a through hole is formed in the center of the inner cylinder, and the seed sowing shaft is rotatably arranged in the through hole.
Further, support plates are arranged between the outer wall of the inner cylinder and the inner wall of the air chamber, and the number of the support plates is two, and the support plates are respectively arranged at the positions right below and right above the inner cylinder.
Further, the input end of the seed shaft is connected with a chain wheel, the chain wheel is connected with a power mechanism of the seeder through a chain, a limiting block is arranged on the seed shaft, and a central mounting hole matched with the limiting block is arranged on the seed plate.
Further, two seed filling holes are formed in the seed metering disc, and the seed filling holes are respectively formed in the inner ring and the outer ring.
Further, the seed filling housing is detachably connected with the air chamber through a snap lock, a mortise is formed in the seed filling housing, and a tenon matched with the mortise is arranged on the air chamber.
Further, the seed filling housing is provided with two seed filling openings and two seed discharging openings, each seed filling opening corresponds to one seed box, and each seed discharging opening is externally connected with two seed discharging pipes.
Further, the seed discharging pipe is connected with the seed filling housing through a buckle, a gas leakage port is arranged on the side wall of the seed discharging pipe, and threads are arranged at the tail end of the seed discharging pipe.
Further, the seed metering device comprises a first seed metering device and a second seed metering device, a round hole is formed in a seed filling housing of the first seed metering device, and the seed metering shaft penetrates through the round hole and is connected with the chain wheel.
Compared with the prior art, the invention has the following beneficial effects:
by adopting the technical scheme that one set of seed metering device is additionally arranged on two sides of the air chamber, the purpose of sowing eight rows at one time is realized, and the device has the advantages of high efficiency, convenience in assembly and disassembly, simple structure and low cost.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic diagram of another structure of the present invention.
FIG. 3 is a schematic view of the positional relationship between the support base and the air chamber in the present invention.
FIG. 4 is a schematic view of the structure of the seed shaft of the present invention.
Fig. 5 is a schematic view of a seed plate according to the present invention.
FIG. 6 is an isometric view of a first seed metering device of the present invention.
Fig. 7 is a side view of a first seed metering device of the present invention.
Fig. 8 is a top view of a first seed metering device of the present invention.
Fig. 9 is a schematic structural diagram of a second seed metering device according to the present invention.
FIG. 10 is a schematic view of a second seed metering device according to another embodiment of the present invention.
FIG. 11 is a schematic view of another angle of the second seed metering device of the present invention.
FIG. 12 is a schematic view of a portion of the structure of the present invention.
Wherein the base 1 is supported;
the air chamber 2, the inner ring cylinder 2a, the negative pressure region 2b, the positive pressure region 2c, the supporting plate 2d, the tenon 2e, the positive pressure air inlet pipe 2f, the negative pressure air outlet pipe 2g and the air chamber partition plate 2h;
a seed shaft 3;
a seed metering disc 4, an outer ring seed filling hole 4a and an inner ring seed filling hole 4b;
the first seed metering device 5, the seed filling housing 5a, the seed metering tube 5b, the air leakage port 5c, the seed metering port 5d, the seed filling sloping plate 5e, the seed box 5f, the reversible seed box cover 5g, the seed filling port 5h, the seed bearing plate 5i, the round hole 5j and the mortise 5k;
a second seed metering device 6;
a snap lock 7;
and a sprocket 8.
Detailed Description
The technical scheme of the invention is further described below through the attached drawings and the embodiments.
Referring to fig. 1 to 12, the invention provides an eight-row pneumatic precision seed metering device, which comprises a supporting base 1, an air chamber 2, a seed metering shaft 3, a seed metering disc 4 and a seed metering device;
the air chamber 2 is arranged on the supporting base 1, and a positive pressure area 2c and a negative pressure area 2b are arranged in the air chamber 2;
in this embodiment, the number of the positive pressure area 2c and the number of the negative pressure area 2b are two;
the seed shaft 3 is rotatably arranged at the center of the air chamber 2;
the number of the seed metering discs 4 is two, the two seed metering discs 4 are clamped on two sides of the air chamber 2 and fixedly sleeved on the seed metering shaft 3, and seed filling holes are formed in the seed metering discs 4;
in this embodiment, the seed metering disc 4 is provided with two seed filling holes, which are an inner ring seed filling hole 4b and an outer ring seed filling hole 4a.
The number of the seed metering devices is two, the two seed metering devices are detachably arranged on two sides of the air chamber 2, the seed metering devices are located on the outer side of the seed metering disc 4, the seed metering devices comprise seed charging cover shells 5a and seed boxes 5f, the seed charging cover shells 5a are arranged on the air chamber 2, the seed boxes 5f are located on one side, away from the air chamber 2, of the seed charging cover shells 5a, the positions, corresponding to the negative pressure areas 2b, of the seed charging cover shells 5a are communicated with the seed boxes 5f through seed charging openings 5h, the positions, corresponding to the positive pressure areas 2c, of the seed charging cover shells 5a are provided with seed metering openings 5d, the seed metering openings 5d are externally connected with four seed metering tubes 5b, and the positions, corresponding to the positive pressure areas 2c, of the inner sides of the seed charging cover shells 5a are also provided with seed bearing plates 5i.
In this embodiment, the top of the seed box 5f is provided with a reversible seed box cover 5g, and a seed filling inclined plate 5e is arranged in the seed box, so that seeds can slide into the seed filling opening 5h in an inclined manner.
Preferably, the positive pressure area 2c and the negative pressure area 2b are adjacently arranged, an air chamber partition plate 2h is arranged between the positive pressure area 2c and the negative pressure area 2b, the positive pressure area 2c is externally connected with a positive pressure air inlet pipe 2f, and the negative pressure area 2b is externally connected with a negative pressure air outlet pipe 2g. In this embodiment, the inner wall of the positive pressure air inlet pipe 2f is tapered to reduce the inner diameter of the air chamber 2, thereby reducing air pressure loss; the inner wall of the negative pressure air outlet pipe 2g is tapered to reduce the outer diameter of the air chamber 2, thereby reducing air pressure loss. Threads are arranged on the outer walls of the positive pressure air inlet pipe 2f and the negative pressure air outlet pipe 2g, so that the air pipe is convenient to install.
Preferably, an inner cylinder 2a is arranged in the air chamber 2, a through hole is arranged in the center of the inner cylinder 2a, and the seed shaft 3 is rotatably arranged in the through hole.
Preferably, a support plate 2d is provided between the outer wall of the inner cylinder 2a and the inner wall of the air chamber 2, and the number of the support plates 2d is two, and the support plates are respectively arranged at positions directly below and directly above the inner cylinder 2 a.
Preferably, the input end of the seed shaft 3 is connected with a chain wheel 8, the chain wheel 8 is connected with a power mechanism of the seeder through a chain, a limiting block is arranged on the seed shaft 3, and a central mounting hole matched with the limiting block is arranged on the seed plate 4. In this embodiment, the central mounting hole is a square hole.
Preferably, the seed filling housing 5a is detachably connected with the air chamber 2 through a snap lock 7, a mortise 5k is formed in the seed filling housing 5a, and a tenon 2e matched with the mortise 5k is formed in the air chamber 2. The tenon 2e and the mortise 5k are matched with each other, so that the air chamber 2 and the seed filling housing 5a are conveniently installed and positioned, and are connected by utilizing the snap lock 7, and the air chamber and the seed filling housing 5a are conveniently detached.
In this embodiment, the upper end and the lower end of the seed filling housing 5a are provided with lock catch mounting plates, the lock catch mounting plates are provided with pin holes, the lower ends of the lock catches are mounted on the seed filling housing 5a through lock catch short pins, and after the seed filling housing 5a and the air chamber 2 are combined together, the lock catches are rotated and locked through lock catch heads, and the lock catch short pins of the air chamber 2 are fixed.
Preferably, the seed filling housing 5a is provided with two seed filling openings 5h and two seed discharging openings 5d, each seed filling opening 5h corresponds to one seed box 5f, and each seed discharging opening 5d is externally connected with two seed discharging pipes 5b.
Preferably, the seed discharging tube 5b is connected with the seed filling housing 5a through a buckle, a gas leakage port 5c is arranged on the side wall of the seed discharging tube 5b, and threads are arranged at the tail end of the seed discharging tube 5b, so that the seed guiding tube is convenient to install.
Preferably, the seed metering device comprises a first seed metering device 5 and a second seed metering device 6, a round hole 5j is formed in a seed filling housing 5a of the first seed metering device 5, and the seed metering shaft 3 penetrates through the round hole 5j and is connected with the chain wheel 8. The first seed metering device 5 is a seed metering device on the side with a shaft, and the second seed metering device 6 is a seed metering device on the side without a shaft.
The working principle and the using flow are as follows:
the seed metering device is fixed on a power mechanism of the seeder through a supporting base 1, the power mechanism is connected with the chain wheel 8 through a chain, power is transmitted to the seed metering shaft 3, and the seed metering shaft 3 and the seed metering disc 4 perform rotary motion together. When the seed filling device is used, seeds are added into the seed box 6, the seeds fall into a seed filling area formed by the seed bearing plate in the seed filling housing through the action of self gravity, the seeds are contacted with the seed metering disc 4, two positive pressure areas 2c and two negative pressure areas 2b are formed in the air chamber 2 under the action of a fan, the seeds contacted with the seed metering disc 4 on the seed bearing plate in the seed filling housing are adsorbed on two seed filling holes of the seed metering disc 4 under the action of negative pressure and rotate together with the seed metering disc 4, when the seed filling holes move to the positive pressure areas 2c in the air chamber 2, negative pressure air flow is blocked by the air chamber partition plate 2h, the seeds adsorbed on the seed filling holes fall into a seed discharging port under the action of self gravity and the air blowing pressure of the positive pressure areas 2a, and are discharged through two seed discharging pipes, so that one eight rows are realized.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention still fall within the scope of the technical solutions of the present invention.

Claims (10)

1. An eight-row pneumatic precision seed sowing device is characterized by comprising:
a support base;
the air chamber is arranged on the supporting base, and a positive pressure area and a negative pressure area are arranged in the air chamber;
the seed shaft is rotationally arranged at the center of the air chamber;
the number of the seed metering discs is two, the two seed metering discs are clamped on two sides of the air chamber and fixedly sleeved on the seed metering shaft, and seed filling holes are formed in the seed metering discs;
the seed metering device, seed metering device's quantity is two, two seed metering device detachable install in the both sides of air chamber, just seed metering device is located the outside of seed metering dish, seed metering device is including filling kind housing and seed case, fill kind housing install in on the air chamber, the seed case is located fill kind housing and keep away from one side of air chamber, fill kind housing correspond the position of negative pressure area through fill kind mouth with seed case intercommunication, fill kind housing correspond the position of positive pressure area is equipped with seed metering mouth, seed metering mouth external four seed pipes, fill kind housing inboard and correspond the position of positive pressure area still is equipped with and holds the seed board.
2. The eight-row pneumatic precision seed metering device of claim 1, wherein the number of the positive pressure area and the negative pressure area is two, the positive pressure area and the negative pressure area are adjacently arranged, an air chamber partition plate is arranged between the positive pressure area and the negative pressure area, the positive pressure area is externally connected with a positive pressure air inlet pipe, and the negative pressure area is externally connected with a negative pressure air outlet pipe.
3. The eight-row pneumatic precision seed metering device of claim 2, wherein an inner cylinder is arranged in the air chamber, a through hole is arranged in the center of the inner cylinder, and the seed metering shaft is rotatably arranged in the through hole.
4. The eight-row pneumatic precision seed metering device according to claim 3, wherein two support plates are arranged between the outer wall of the inner cylinder and the inner wall of the air chamber, and the number of the support plates is two and are respectively arranged at the position right below and right above the inner cylinder.
5. The eight-row pneumatic precision seed metering device of claim 1, wherein the input end of the seed metering shaft is connected with a chain wheel, the chain wheel is connected with a power mechanism of a seeder through a chain, a limiting block is arranged on the seed metering shaft, and a center mounting hole matched with the limiting block is arranged on the seed metering disc.
6. The eight-row pneumatic precision seed metering device of claim 1, wherein the seed metering disc is provided with two seed filling holes, namely an inner ring seed filling hole and an outer ring seed filling hole.
7. The eight-row pneumatic precision seed metering device of claim 1, wherein the seed filling housing is detachably connected with the air chamber through a snap lock, a mortise is formed in the seed filling housing, and a tenon matched with the mortise is arranged on the air chamber.
8. The eight-row pneumatic precision seed metering device of claim 1, wherein two seed filling openings and two seed metering openings are arranged on the seed filling housing, each seed filling opening corresponds to one seed box, and each seed metering opening is externally connected with two seed metering pipes.
9. The eight-row pneumatic precision seed metering device of claim 8, wherein the seed metering tube is connected with the seed filling housing through a buckle, a gas leakage port is arranged on the side wall of the seed metering tube, and the tail end of the seed metering tube is provided with threads.
10. The eight-row pneumatic precision seed metering device of claim 1, wherein the seed metering device comprises a first seed metering device and a second seed metering device, a seed filling housing of the first seed metering device is provided with a round hole, and the seed metering shaft penetrates through the round hole and is connected with the chain wheel.
CN202310175644.3A 2023-02-28 2023-02-28 Eight-row pneumatic precision seed metering device Pending CN116114437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310175644.3A CN116114437A (en) 2023-02-28 2023-02-28 Eight-row pneumatic precision seed metering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310175644.3A CN116114437A (en) 2023-02-28 2023-02-28 Eight-row pneumatic precision seed metering device

Publications (1)

Publication Number Publication Date
CN116114437A true CN116114437A (en) 2023-05-16

Family

ID=86310061

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310175644.3A Pending CN116114437A (en) 2023-02-28 2023-02-28 Eight-row pneumatic precision seed metering device

Country Status (1)

Country Link
CN (1) CN116114437A (en)

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