CN218649228U

CN218649228U - Single-seed dibble corn sowing mechanism

Info

Publication number: CN218649228U
Application number: CN202222886724.3U
Authority: CN
Inventors: 茅军; 陈益伟; 葛智溶; 郭语; 王珺
Original assignee: Jinling Institute of Technology
Current assignee: Jinling Institute of Technology
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-21
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a single-seed dibbling corn seeding mechanism, which comprises a driving mechanism, a seeding mechanism, a blocking mechanism and a seed box, wherein the blocking mechanism comprises a flashboard which is radially inserted into a seed feeding pipe and used for limiting the passing of seeds; the driving mechanism comprises a cam with an eccentric structure, the flashboard reciprocates up and down along with the rotation of the cam, and the oscillating bar is sleeved with a first shaft arranged on the cam; sowing mechanism includes ratchet, seed metering wheel and is used for controlling seed quantity scrape the piece, scrape the piece through torsional spring horizontal installation throw kind incasement wall, and with leave the clearance between the seed metering wheel, the ratchet with the seed metering wheel all cup joints on the secondary shaft that seed incasement wall set up, the push rod of connecting on the pendulum rod along with the rotatory promotion of cam the ratchet with the seed metering wheel rotates together. The utility model discloses a mechanical structure of innovation sowing mechanism has controlled seeding quantity, seeding speed and seed distance, has realized single seed precision seeding.

Description

Single-seed dibble corn sowing mechanism

Technical Field

The utility model belongs to the seeder field, concretely relates to single seed dibble seeding maize seeder constructs.

Background

At present, the corn sowing modes in China are manual and mechanical, wherein the manual sowing needs to loosen the cultivated soil, then put corn kernels into the planting furrows and finally cover the soil. The corn seeding requires single row, single grain, even grain distance and the like, but the quantity and the spacing of the corn seeds dibbled by the seeding mode are difficult to control, the labor and the time are wasted, and the seeding effect is poor.

The mechanical seeding is realized by using a corn seeder matched with other large-scale machines or independently. The mode that cooperates other large-scale machines to use work efficiency is high, but the precision is low. The corn planter used independently generally comprises two types, one type is a manual lifting type, the grain number of corn is controlled inaccurately, blanking is difficult to control, and lifting is completely dependent on manpower. The other kind is carousel formula corn drill, and the pivot of connecting by the motor drives the carousel and rotates for the seeding groove that has on the rim plate constantly is filled by maize seed in the maize storehouse of carousel top, and the seeding is accomplished because seed dead weight and automatic opening to the articulated bottom plate in the seeding groove when rotating the seeding position, and this kind of seeder carousel angle is not well controlled, leads to the reseeding easily, leaks to sow or sow inhomogeneous.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the prior art problem, the utility model provides a seeding mechanism which can realize the single-seed precision seeding function.

The technical scheme is as follows: the utility model provides a single-seed dibbling corn seeding mechanism, which comprises a driving mechanism, a seeding mechanism, a blocking mechanism and a seed box, wherein the blocking mechanism is driven by the driving mechanism to move periodically, and comprises a flashboard which is radially inserted into a seed throwing pipe and used for limiting the passing of seeds; the driving mechanism comprises a cam with an eccentric structure, the cam drives the flashboard to reciprocate up and down in a rotating mode, and the swing rod is sleeved on a first shaft arranged on the cam; sowing mechanism includes ratchet, seed metering wheel and is used for controlling seed quantity scrape the piece, scrape the piece through torsional spring horizontal installation throw kind incasement wall, and with leave the clearance between the seed metering wheel, the ratchet with the seed metering wheel all cup joints on the second shaft that seed incasement wall set up, the push rod of connecting on the pendulum rod along with the rotatory promotion of cam the ratchet with the seed metering wheel rotates and the periodic seeding together.

Preferably, the upper part of the flashboard is provided with a round hole with the same diameter as the pipe of the seed feeding pipe, and the bottom of the flashboard is provided with a roller.

The swing rod is sleeved on a first shaft on the cam, the push rod is sleeved on a mounting shaft arranged on the swing rod, the cam rotates from the bottommost point to the highest point by a half circle, and the swing rod pushes the ratchet wheel to synchronously rotate by a quarter circle; the cam rotates from the highest point to the lowest point by half a circle, and the ratchet wheel keeps a static state and does not rotate. When the cam is positioned at the lowest point, the seed feeding type hole is superposed with the gate plate hole, the seeds pass through and fall into the seed sowing wheel under the push of the dead weight and the rear seed weight, and the push rod pushes the seed sowing wheel to rotate; when the cam is positioned at the highest point, the seed feeding pipe is in a blocked state, the seeds are detained, and the seeds in the seed metering wheel type hole are just discharged out of the seeding mechanism, so that a working cycle is completed, and single-seed precision seeding is realized.

Preferably, the front surface of the ratchet wheel is uniformly distributed with 16 small cylinders along the radial direction of the circumference, and the back surface is a plane and is attached to the seed sowing wheel.

Preferably, the clearance is 2mm, the depth of the hole is 9mm, the bottom of the hole is circular, the diameter of the hole is 11mm, and the shaped hole of the seed sowing wheel is enough to accommodate one corn seed in various states.

Has the advantages that: compared with the prior art, the utility model has the advantages of as follows: 1. single grain precision dibbling, uniform sowing grain distance; 2. labor and time are saved, blanking is easy, and the sowing effect is good; 3. simple structure and convenient use.

Drawings

Fig. 1 is a schematic view of the structure and a schematic view of the highest point state of the cam according to the present invention;

fig. 2 is a schematic view of the lowest point state of the cam according to the present invention;

FIG. 3 is a schematic view of the structure of the seed-metering wheel of the present invention;

fig. 4 is a schematic view of the structure of the push rod of the present invention;

FIG. 5 is a schematic view of the ratchet wheel of the present invention;

FIG. 6 is a schematic view showing the gap between the seed sowing wheel and the seed scraping plate of the present invention.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the single-seed dibbling corn seeding mechanism drives the cam 3 to rotate through the first shaft, the push rod 4 pushes the ratchet wheel 8 and the seeding wheel 9 to rotate, one end of the push rod 4 is a circular ring for sleeving a mounting shaft arranged on the swing rod 5, and the other end is an L-shaped bending piece for pushing the ratchet wheel 8 to rotate; the front surface of the ratchet wheel 8 is provided with 16 small cylinders which are evenly distributed along the radial direction of the circumference, and the back surface is a plane and is attached with the seed sowing wheel 9, as shown in figures 3-5.

The swing rod is sleeved on a first shaft on the cam 3, the push rod is sleeved on a mounting shaft arranged on the swing rod, the cam 3 rotates from the bottommost point to the highest point by a half circle, and the swing rod pushes the ratchet 8 to synchronously rotate by a quarter circle; the cam 3 rotates from the highest point to the lowest point by half a circle, and the ratchet wheel 8 keeps a static state and does not rotate. The cam 3 rotates to drive the gate plate 1 to reciprocate up and down to limit the seeds to pass through, when the cam 3 is positioned at the lowest point, the hole of the seed feeding pipe 2 is superposed with the hole of the gate plate 1, the seeds fall under the push of self weight and rear seed weight, and fall into the uniformly arranged holes of the outer ring of the seed sowing wheel 9 through a gap with the width of 2mm between the seed sowing wheel 9 and the seed scraping plate 11, the depth of the hole is 9mm, and the diameter is 11mm, as shown in fig. 6; the push rod 4 pushes the ratchet wheel 8 to rotate around the second shaft to drive the seeding wheel 9 to rotate together, as shown in figure 2; when the cam 3 is positioned at the highest point, the seed feeding pipe 2 is in a blocking state, the seeds are detained, the seed discharging wheel 9 rotates for a quarter circle, the seeds in the 9-shaped holes of the seed discharging wheel just discharge out of the seeding mechanism, a working cycle is completed, and single-seed precision seeding is realized.

Claims

1. The single-seed-dibbling corn sowing mechanism is characterized by comprising a cam (3) with an eccentric structure, wherein a seed feeding pipe (2) for conveying seeds and a gate plate (1) which is radially inserted into the seed feeding pipe (2) and used for limiting the seeds to pass through are arranged above the cam (3), the cam (3) rotationally drives the gate plate (1) to reciprocate up and down, the cam (3) and a swing rod (5) are both sleeved with a first shaft (6), and the swing rod (5) is movably connected with a push rod (4) for driving a ratchet wheel (8) to rotate; the seed sowing wheel (9) is embedded with an opening in the center of the ratchet wheel (8) and is sleeved with a second shaft (10) arranged on the inner wall of the seed box (7); the seed scraping sheet (11) is horizontally arranged on the inner wall of the seed box (7) through a torsion spring (12), and a gap is reserved between the seed sowing wheel (9).

2. The single-seed-sowing corn sowing mechanism according to claim 1, wherein a round hole with the same pipe diameter as the seed feeding pipe (2) is formed in the upper part of the gate plate (1), and a roller is arranged at the bottom.

3. The mechanism for sowing single-seed-sowing corn as claimed in claim 1, wherein the front surface of the ratchet wheel (8) is 16 small cylinders which are uniformly distributed along the radial direction of the circumference.

4. The mechanism for sowing the single-seed-dibble corns according to claim 1, characterized in that the outer ring of the seed sowing wheel (9) is uniformly provided with a hole pattern for receiving the seeds from the seed feeding pipe (2), and the hole diameter of the hole pattern is larger than the outer diameter of the seeds.

5. The single-seed-sowing corn sowing mechanism according to claim 1, wherein one end of the push rod (4) is a circular ring for sleeving a mounting shaft arranged on the swing rod (5), and the other end of the push rod is an L-shaped bending piece for pushing the ratchet wheel (8) to rotate.

6. The mechanism for single-seed corn sowing according to claim 1, wherein the cam (3) rotates from the lowest point to the highest point for a half turn, and the ratchet wheel (8) rotates synchronously for a quarter turn; the cam (3) rotates from the highest point to the lowest point for a half circle, and the ratchet wheel (8) keeps a static state.