CN111034415B

CN111034415B - High-speed seeder on ejection type air suction film

Info

Publication number: CN111034415B
Application number: CN202010008340.4A
Authority: CN
Inventors: 侯守印; 邹震; 何昀阳; 高伟; 魏志鹏
Original assignee: Northeast Agricultural University
Current assignee: Northeast Agricultural University
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2023-08-29
Anticipated expiration: 2040-01-06
Also published as: CN111034415A

Abstract

The invention discloses a high-speed seeding device on an ejection type air suction film, which consists of a parallel four-bar mechanism, a single support, a seed box, a pressing wheel, a negative pressure suction pipe, a track concave plate, a rigid wheel plate and the like, and is characterized in that: the parallel four-bar mechanism is hinged with a single support, a rigid wheel plate is rotatably arranged on the single support, a sowing needle is arranged on a positioning block in a serial manner through the rigid wheel plate, an ejection spring is arranged between the sowing needle and a bearing, and a track concave plate is used for controlling the sowing needle to eject and sow at a sowing position through controlling the bearing.

Description

High-speed seeder on ejection type air suction film

Technical Field

The invention relates to a film sowing device, in particular to a high-speed film sowing device with an ejection device, and belongs to the field of agricultural machinery.

Background

The seed tape coating has the advantages of improving ground temperature, reducing water evaporation, inhibiting weeds, reducing herbicide dosage, improving crop yield and quality and the like. The on-film seeding device can greatly improve the working efficiency, reduce the cost, improve the working quality and liberate the labor force. The prior film seeding device performs film punching seeding operation by fixedly installing seeding components on the rigid seeding wheel, the seeding device with the structure needs the punching components to be provided with an opening and closing mechanism, so that the punching is large, and meanwhile, the rigid wheel rotates to form trochoid to further damage the film hole. The film is provided with too large holes to disperse soil moisture seriously, which is unfavorable for seed growth, and meanwhile, the large holes are easy to cause the tearing of the mulching film in a strong wind environment. The existing on-film seeding device drives the rigid seeding wheel to rotate by means of the resistance between the hole opening component and the soil, and meanwhile, mechanical seed metering devices are adopted for secondary seed feeding, and the resistance that the rigid seeding wheel can not stably rotate and the seed metering device seed metering performance are reduced due to the fact that the soil is soft during high-speed operation, so that high-speed operation is difficult to realize. The agricultural requirements of modern agriculture on sowing on the film cannot be met.

Therefore, there is an urgent need for a high-speed stable seeding apparatus that can achieve smaller openings in the film to reduce the problem of film tearing in windy days where moisture loss is severe at the opening position.

Disclosure of Invention

In order to overcome the defects, the invention provides a high-speed seeding device on an ejection type air suction film.

In order to solve the technical problems, the invention is realized by the following technical scheme: the high-speed seeding device on the ejection type air suction film comprises a parallel four-bar mechanism, a single support, a seed box, a pressing wheel support, a wheel frame, a pressing wheel, a negative pressure suction pipe, a track concave plate, a rigid wheel plate, a spring upper blocking ring, an ejection spring, a bearing, a positioning block, a seeding needle and a positive pressure blowing pipe structure. The method is characterized in that: the parallel four-bar mechanism is hinged with a single support, a seed box is assembled on the upper portion of the single support, a pressing wheel support is arranged on the single support and located below the seed box and capable of swinging up and down, a pressing wheel is rotatably arranged on the pressing wheel support, a rigid wheel plate is rotatably arranged on the single support and located below the seed box, a positioning block is fixedly arranged on the inner periphery of the rigid wheel plate, a sowing needle is movably arranged on a positioning block, a bearing is fixedly arranged on the sowing needle, a spring upper blocking ring is arranged on the upper portion of the sowing needle, a spring projectile spring is assembled between the spring upper blocking ring and the bearing, a track concave plate is fixedly arranged at the coaxial center position of the rigid wheel plate through the single support, a positive pressure blow pipe is arranged on the left side of the rigid wheel plate, a negative pressure suction pipe is arranged at the tail end of the positive pressure blow pipe, a positive pressure spring and a positive pressure sliding block are fixedly arranged at the upper end of the positive pressure spring, a seed protection hole is circumferentially arranged on the outer side of the rigid wheel plate, and the seed protection hole, the positive pressure sliding block and the sowing needle are communicated.

The invention has the advantages that: the utility model provides a high-speed seeder on catapulting formula membrane, provides stable resistance through the great rigidity wheel board of width and ground contact and drives its rotation, and the sowing needle is mutually supported with the rigidity wheel board and is provided negative pressure with the help of the negative pressure straw and accomplish the seed sucking at the seed case and the sowing needle pops out fast in the seeding position under track concave plate control, and the sowing needle is put through with the positive pressure blowing mouth at this moment and blows out the seed and realize quick seeding, later carries out the postsowing suppression through the suppression wheel. The device can ensure that the film is not damaged through the rigid wheel plate with larger width and the larger rotation resistance is not slipped at high speed, realize high-speed sowing through negative pressure seed suction and positive pressure seed blowing, ensure that the holes on the film are smaller through ejection sowing at the sowing position, and avoid the problems of soil moisture dispersion, strong wind blowing crack and the like caused by larger holes at the sowing position.

Drawings

Fig. 1 is an isometric view of the overall structure of the present invention.

Fig. 2 is a front view of the on-film sowing member.

Fig. 3 is a cross-sectional view of the on-film sowing member.

Fig. 4 is a block diagram of a rigid wheel.

Fig. 5 is an isometric view of a positive pressure seed blowing component.

In the figure: 1-a parallel four bar mechanism; 2-a single body support; 3, seed box; 4-a pressing wheel bracket; 5-pressing wheels; 6-negative pressure suction pipe; 7-a track concave plate; 8-a rigid wheel plate; 9, a spring upper blocking ring; 10-ejection springs; 11-a bearing; 12-positioning blocks; 13-sowing needles; 14-positive pressure blowpipe; 15-positive pressure spring; 16-positive pressure slide block; 17-positive pressure plugging ring; 18-protecting seed hole;

Detailed Description

Referring to fig. 1 to fig. 4, the present invention provides a technical scheme: the utility model provides a high-speed seeder on ejection type membrane comprises parallel four-bar linkage 1, monomer support 2, kind case 3, press wheel support 4, press wheel 5, negative pressure straw 6, track concave plate 7, rigidity wheel plate 8, on the spring stifled ring 9, ejection spring 10, bearing 11, locating piece 12, sowing needle 13, malleation blowpipe 14, malleation spring 15, malleation slider 16, malleation stifled ring 17 structure, its characterized in that: the parallel four-bar mechanism 1 is hinged with a single support 2, a seed box 3 is assembled at the upper part of the single support 2, a pressing wheel support 4 is arranged on the single support 2 and positioned below the seed box 3 and can swing up and down, a pressing wheel 5 is rotatably arranged on the pressing wheel support 4, a rigid wheel plate 8 is rotatably arranged on the single support 2 and positioned at the left lower part of the seed box 3, a positioning block 12 is fixedly distributed on the inner side of the rigid wheel plate 8, a sowing needle 13 is movably arranged on the positioning block 12 in a stringing way, a bearing 11 is fixedly arranged on the sowing needle 13, a spring blocking ring 9 is arranged at the upper part of the sowing needle 13, a projectile spring 10 is assembled between the spring blocking ring 9 and the bearing 11, a track concave plate 7 is fixedly arranged at the coaxial center position of the rigid wheel plate 8 through the single support 2, a positive pressure pipe 14 is arranged at the left side of the rigid wheel plate 8, a positive pressure 6 is arranged at the right side of the rigid wheel plate 8, a positive pressure spring 15 and a positive pressure slide 16 are sleeved at the tail end of the blowing pipe 14, a positive pressure ring 17 is fixedly arranged at the upper end of the positive pressure spring 15 through a positive pressure suction pipe 14, a sowing hole protection hole 18 is mutually communicated with a sowing hole protection hole 18.

When the device works, the device is driven to rotate by enough friction force between the rigid wheel plate 8 with larger width and the ground, the sowing needle 13 fixedly arranged on the rigid wheel plate 8 provides stable elastic force for the bearing 11 through the ejection spring 10 arranged between the spring upper blanking ring 9 and the bearing 11, the sowing needle 13, the bearing 11 and the ejection spring 10 rotate along with the rigid wheel plate 8, the sowing needle 13 is communicated with the negative pressure suction pipe 6 to absorb seeds at the seed protecting hole 18 at the position of rotating to the seed box 3, the sowing needle 13 keeps the negative pressure to absorb the seeds to continuously rotate to the sowing position along with the rigid wheel plate 8, the track concave plate 7 controls the bearing 11 to drive the sowing needle 13 to eject downwards under the elastic force of the ejection spring 10, the positive pressure spring 15 applies stable pressure to enable the positive pressure slide block 16 to cling to the track concave plate 7, the upper end of the sowing needle 13 is communicated with the positive pressure blowing pipe 14 to blow the seeds down in a seed ditch when the sowing needle 13 moves downwards to the lowest end, the bearing 11 returns to a circular track under the control of the track concave plate 7, and the pressing wheel 5 presses the seeds after the sowing is finished.

It will be apparent to those skilled in the art in light of the teachings of this invention that changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of this invention and their equivalents are intended to be within the scope of this invention.

Claims

1. A high-speed seeding device on an ejection type air suction film is characterized in that a single support (2) is hinged to a parallel four-bar mechanism (1), a seed box (3) is assembled on the upper portion of the single support (2), a pressing wheel support (4) is arranged below the seed box (3) and can swing up and down, a pressing wheel (5) is rotatably arranged on the pressing wheel support (4), the pressing wheel (5) is flat in appearance, a rigid wheel plate (8) is rotatably arranged on the single support (2) and positioned at the left lower side of the seed box (3), a positioning block (12) is fixedly distributed on the inner side periphery of the rigid wheel plate (8), a seeding needle (13) is rotatably arranged on the positioning block (12), a bearing (11) is fixedly arranged on a seeding needle (13), a spring upper blocking ring (9) is arranged on the upper portion of the seeding needle (13), an ejection spring (10) is assembled between the spring upper blocking ring (9) and the bearing (11), the coaxial position of the rigid wheel plate (8) is fixedly arranged on a positive pressure pipe (16) through a concave plate (7) of the single support (2), a positive pressure pipe (16) and a positive pressure pipe (16) is fixedly arranged on the right pressure pipe (14), the upper end of the positive pressure spring (15) is fixedly provided with a positive pressure blocking ring (17) through a positive pressure suction pipe (14), a seed protection hole (18) is circumferentially distributed on the outer side of the rigid wheel plate (8), the seed protection hole (18), the sowing needle (13) and the positive pressure sliding block (16) are mutually communicated, and the seed protection hole (18) is flush with the periphery of the rigid wheel plate (8);

during sowing, the track concave plate (7) controls the bearing (11) to drive the sowing needle (13) to downwards eject under the elasticity of the ejection spring (10), the positive pressure spring (15) applies stable pressure to enable the positive pressure sliding block (16) to cling to the track concave plate (7), when the sowing needle (13) moves downwards to the lowest end, the upper end of the sowing needle (13) is communicated with the positive pressure blowing pipe (14) to blow seeds down in a seed ditch, the bearing (11) returns to a circular track under the control of the track concave plate (7), and the pressing wheel (5) presses the seeds after sowing, so that sowing is completed.

2. The ejection type high-speed sowing device on the air suction film according to claim 1, wherein the lower left side of the seed box (3) is provided with an arc structure matched with a rigid wheel plate (8), an arc groove is formed in the middle of the arc section of the seed box, and seeds are filled with the rigid wheel plate (8), the sowing needle (13) and the seed protection hole (18).