Seed-metering device capable of precisely seeding pelleted seeds and seeding machine capable of precisely seeding sorghum pelleted seeds

Abstract

The utility model discloses a seed-metering device capable of precisely seeding pelleted seeds and a seeder capable of precisely seeding sorghum pelleted seeds, and the seed-metering device capable of precisely seeding pelleted seeds comprises a seed-metering ring and a mounting ring, the mounting ring is arranged on the inner side of the seed metering ring, an outer ring of the mounting ring is connected to an inner ring of the seed metering ring, and a mounting hole is formed in the mounting ring; the width of the outer ring of the seed-metering ring is greater than or equal to 30mm, more than three rows and more than ten columns of shaped holes with the same size are formed in the outer ring of the seed-metering ring along the circumferential direction, the number of the shaped holes in each row is equal, the shaped holes are arranged at equal intervals, and the number of the shaped holes in each column is equal, and the shaped holes in each column are arranged at equal intervals; the top of each hole is of an open structure, the bottom of each hole is sealed, and the tops of all the holes are flush with the outer ring surface of the seed metering ring. The device can effectively solve the problems of pelleted shell breakage, incapability of precision seeding, blockage of a seeding machine, durability, reliability and the like during seeding of pelleted seeds, can meet the requirements of precision seeding of sorghum pelleted seeds, and is good in tolerance and high in precision.

Description

Technical Field

[0001] The utility model relates to a seed metering device capable of accurately sowing pelletized seeds and a sowing machine comprising the same, belonging to the technical field of pelletized seed sowing. Background Art

[0002] At present, the most common hand-push seeder seeding device on the market is the hole belt type seeding device, which can be used for sowing naked seeds such as corn and peanuts. The design of seeding devices is gradually moving towards precision sowing, but the current research and development of seeding devices still focuses on naked seeds of crops, and lacks the design of seeding devices for pelletized seeds.

[0003] The push seeder consists of a vehicle body, a frame, handrails, a seed box, a seed meter, a driving wheel, a seed outlet, etc. The core component is the seed meter. When sowing, first pour the seeds into the seed box, and when the seeder is pushed forward, the seed meter rotates at the same time, and the driving wheel drives the hole belt to rotate. The seeds enter the seed chamber (seed filling area) from the seed box through the seed flow baffle, so that the seeds are filled into the hole under the action of their own weight, and run backward along the support plate with the annular belt, and then the excess seeds are removed by the reverse rotating seed brush wheel.

[0004] The seed metering device of an ordinary seeder is simply designed with only a single hole, which makes it easy for multiple sorghum pelletized seeds to enter the hole at the same time, thereby greatly increasing the probability of hole blockage and the risk of multiple sorghum pelletized seeds being squeezed and crushed together, resulting in excessive or insufficient sowing, uneven crop spacing, and inconsistent crop planting density, which affects the growth and yield of crops and cannot accurately match the sorghum pelletized seeds. If the pelletized seeds cannot completely enter the seed metering device, the brushing wheel in the opposite direction will rub on the surface of the pelletized seeds, causing the pelletized shell of the pelletized seeds to break, thereby losing the meaning of pelletized seed sowing. The present application aims to improve the existing seed metering device so that it can adapt to the sowing of pelletized seeds and meet the requirements of precision sowing. Utility Model Content

[0005] The utility model provides a seeding device capable of accurately sowing pelletized seeds and a seeder comprising the same, so that the device can adapt to the pelletized seeds, solve the problem that the pelletized shell is broken due to the common seeding device, and achieve the goal of accurately sowing the pelletized seeds.

[0006] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows:

[0007] A seeding device capable of accurately sowing pelletized seeds comprises a seeding ring and a mounting ring; the mounting ring is arranged on the inner side of the seeding ring, the outer ring of the mounting ring is connected to the inner ring of the seeding ring, and the mounting ring is provided with mounting holes; the width of the outer ring of the seeding ring is ≥30 mm, and the outer ring of the seeding ring is provided with more than 3 rows and more than 10 columns of equal-sized shaped holes arranged along the circumferential direction, the number of shaped holes in each row is equal and arranged at equal intervals, and the number of shaped holes in each column is equal and arranged at equal intervals; the top of the shaped holes is an open structure and the bottom is a closed structure, the tops of all the shaped holes are flush with the surface of the outer ring of the seeding ring, and the diameter of the shaped holes of the seeding device is designed to be 2-5 mm and the depth is 2-5 mm according to the size of sorghum pelletized seeds.

[0008] The outer ring of the seeding ring is provided with equal-sized holes arranged in more than 3 rows and more than 10 columns along the circumferential direction, that is, when the outer ring of the seeding ring is unfolded into a plane, the holes are arranged in a matrix of more than 3 rows and more than 10 columns. The number of holes in each row is the number of columns, and the number of holes in each column is the number of rows. When sowing, the sorghum pelleted seeds in the holes in the same column fall into the same seed hole, which can meet the requirement of sowing multiple sorghum pelleted seeds in one hole at a time.

[0009] Connect the centers of the holes in the same row to form a circle perpendicular to the axial direction of the seeding ring, and connect the centers of the holes in the same column to form a line segment parallel to the axial direction of the seeding ring.

[0010] The top of the above-mentioned molded hole is an open structure and the bottom is a closed structure, that is, the molded hole is a blind hole with a closed bottom.

[0011] The tops of all the above-mentioned shaped holes are flush with the surface of the outer ring of the seeding ring. The rotation of the seeding ring is not affected by the setting of the shaped holes, and the surface of the seeding ring is smooth.

[0012] The size of the shaped hole is set to a size suitable for the corresponding pelletized seed. One shaped hole corresponds to one pelletized seed, which avoids or reduces the blockage and crushing of the pelletized seeds. The sorghum pelletized seeds in the same row of shaped holes fall into the same seed hole. This can meet the requirement of sowing multiple sorghum pelletized seeds in one hole at a time.

[0013] When targeting sorghum pelleted seeds, the diameter of the hole is 4.5±0.1mm and the depth is 4.2±0.1mm. It can just hold one sorghum pelleted seed (sorghum pelleted seeds are nearly spherical, with a diameter of 3.9mm to 4.2mm), and leave enough space for the sorghum pelleted seeds entering the hole to ensure that the sorghum pelleted seeds can enter the hole smoothly. Each hole can only contain one sorghum pelleted seed, which greatly reduces the probability of clogging when the sorghum pelleted seeds enter the hole and the risk of crushing the sorghum pelleted seeds. At the same time, more than 3 holes are set in one row to meet the requirement of sowing multiple pelleted seeds in one hole at a time.

[0014] As common sense, a ring shape includes an inner ring and an outer ring; both the seed ring and the installation ring are ring-shaped, and each includes an inner ring and an outer ring.

[0015] The top and bottom of the shaped hole of the present application are the relative positional relationship when the seed meter is rotated to the shaped hole opening upward. The shaped hole is a structure with one end open and the other end closed.

[0016] In order to further improve the compatibility with pelletized seeds, the bottom of the mold hole is an arc surface.

[0017] In order to better meet the requirements of precision sowing of sorghum pelleted seeds, the width of the seed ring is 34±0.2mm, and there are four holes in the same row. In this way, 4 sorghum pelleted seeds can be sown in one hole at a time, meeting the requirements of precision sowing of sorghum pelleted seeds.

[0018] In order to fully utilize the space of the seed meter and improve the sowing efficiency, the outer ring of the seed meter is provided with 4 rows and 14 columns of equal-sized holes arranged along the circumference, that is, each row includes 14 holes and each column includes 4 holes, thereby ensuring the full utilization of the space of the seed meter to the maximum extent.

[0019] In order to further avoid squeezing and crushing between seeds, the interval between two adjacent rows of holes is 4±0.2mm.

[0020] In order to improve the running stability, the outer ring of the mounting ring is connected to the middle position of the inner ring of the seeding ring in the width direction.

[0021] In order to further improve the smoothness and tolerance of the seed meter, the material used for the seed ring and the mounting ring is polytetrafluoroethylene, which can reduce the wear of the seed meter, improve the smoothness of the inner wall of the seed meter, and reduce the wear on the surface of the pelletized seeds.

[0022] The outer ring of the mounting ring and the inner ring of the seeding ring can be welded together. In order to improve stability, the seeding ring and the mounting ring are an integrated structure.

[0023] The mounting holes on the mounting ring are adapted to fit the key slots of the seeders on the market.

[0024] In order to reduce weight and save materials, the mounting ring is provided with symmetrically arranged weight-reducing holes.

[0025] According to the design drawings, use 3D printing or fine processing to print samples and finally produce them.

[0026] A seeder capable of accurately sowing sorghum pelletized seeds, wherein the seeding device used is the above-mentioned seeding device capable of accurately sowing pelletized seeds.

[0027] The rest of the structure of the seeder is based on the existing hand-push seeder structure.

[0028] The technologies not mentioned in this utility model are all referred to the prior art.

[0029] Compared with the seeding device of an ordinary seeding machine, the seeding device of the utility model which can accurately sow pelletized seeds can effectively solve the problems of pelletized shell breakage, inability to accurately sow seeds, clogging of the seeding machine, durability and reliability during sowing of pelletized seeds. These advantages make the seeding device of the utility model for pelletized seeds have a wider application prospect in agricultural production and have the following beneficial effects:

[0030] 1) By optimizing and improving the seeder's seed meter, it can adapt to the requirements of precision sowing of pelletized seeds.

[0031] 2) By optimizing and improving the size parameters of the seed meter hole, it can be adapted to the pelletized seeds, solving the problem of the pelletized shell being broken due to ordinary seed metering devices, and achieving the goal of one pelletized seed per hole and precision sowing.

[0032] 3) Uniform seed falling and precise sowing can fix the spacing between rows and plants and control the crop planting density.

[0033] 4) To meet the requirements of sowing pelletized seeds such as sorghum, 4 seeds should be sown in one hole at a time without breaking the seeds and the requirements of precision sowing should be met.

[0034] 5) Through the selection of materials, the wear resistance, hardness or corrosion resistance are improved, the smoothness of the inner wall of the seed meter is improved, it is not easy to wear, not easy to be corroded by chemical substances, the service life is extended, and the wear on the surface of the pelletized seeds is reduced or avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a seed metering device capable of accurately sowing pelletized seeds according to the utility model;

[0036] Figure 2 for Figure 1 Left view of

[0037] Figure 3 for Figure 1 A top view of

[0038] Figure 4 for Figure 1 Stereoscopic image of

[0039] Figure 5 This is a schematic diagram of the connection of the seed metering device capable of accurately sowing pelletized seeds according to the utility model when in use;

[0040] Figure 6 It is a structural schematic diagram of a seeder including the seed metering device of the utility model which can accurately sow pelletized seeds;

[0041] In the figure, 1 is a seeding ring, 101 is a mold hole, 2 is a mounting ring, 201 is a mounting hole, 202 is a weight reduction hole, 3 is a push rod, 4 is a seed box, 401 is a seed chamber, 5 is a brush plate, 6 is a brush disc, 7 is a seeding disc, 8 is a seeding device that can accurately sow pelletized seeds, 9 is a pressure wheel, 10 is a duckbill, and 11 is a tension spring. DETAILED DESCRIPTION

[0042] In order to better understand the present invention, the content of the present invention is further explained below in conjunction with embodiments, but the content of the present invention is not limited to the following embodiments.

[0043] The top and bottom of the shaped hole of the present application are the relative position relationship when the seed meter is rotated to the point where the shaped hole opening faces upward. This is only for the convenience of describing the present application and should not be construed as a limitation to the present application.

[0044] Example 1

[0045] like Figure 1-4 As shown, a seeding device capable of accurately sowing pelletized seeds comprises a seeding ring and a mounting ring; the mounting ring is arranged on the inner side of the seeding ring, the outer ring of the mounting ring is connected to the inner ring of the seeding ring, and the mounting ring is provided with mounting holes; the width of the outer ring of the seeding ring is ≥30mm, and the outer ring of the seeding ring is provided with 4 rows and 14 columns of equal-sized shaped holes arranged along the circumferential direction, the number of shaped holes in each row is equal and arranged at equal intervals, and the number of shaped holes in each column is equal and arranged at equal intervals; the top of the shaped hole is an open structure and the bottom is a closed end structure, and the tops of all the shaped holes are aligned with the seeding ring The surface of the outer ring is flush, and the sorghum pelletized seeds are nearly spherical with a diameter of 3.9mm to 4.2mm. According to the size of the sorghum pelletized seeds, the diameter of the seed metering device hole is designed to be 4.5mm and the depth is 4.2mm, which can just hold one sorghum pelletized seed and leave enough space for the sorghum pelletized seeds entering the hole to ensure that the sorghum pelletized seeds enter the hole smoothly. Only one sorghum pelletized seed can enter each hole, which greatly reduces the probability of blockage when the sorghum pelletized seeds enter the hole and the risk of crushing the sorghum pelletized seeds.

[0046] Example 2

[0047] On the basis of Example 1, the following improvements were made: the width of the seeding ring was 34 mm, and there were four holes in the same row. In this way, 4 sorghum pelleted seeds could be sown in one hole at a time, meeting the requirements for precision sowing of sorghum pelleted seeds. The interval between two adjacent rows of holes was 4 mm. In order to further improve the compatibility with the pelleted seeds, the bottom of the hole was an arc surface.

[0048] Example 3

[0049] On the basis of Example 2, the following improvements are made: in order to improve the stability of operation, the outer ring of the mounting ring is connected to the middle position of the inner ring of the seeding ring in the width direction, and the seeding ring and the mounting ring are an integrated structure, and the material used for the seeding ring and the mounting ring is polytetrafluoroethylene, which can reduce the wear of the seeding device, improve the smoothness of the inner wall of the seeding device, and reduce the wear on the surface of the pelletized seeds. Figure 3 As shown, in order to reduce weight and save materials, symmetrically arranged weight-reducing holes are provided on the mounting ring.

[0050] Example 4

[0051] A hand-push seeder capable of accurately sowing sorghum pelletized seeds, wherein the seeding device used is the seeding device capable of accurately sowing pelletized seeds in Example 1, Example 2 or Example 3. Figure 5 As shown, the seed meter is installed on the seed tray. Figure 6 As shown ( Figure 6 The seed chamber in the middle is not fully displayed and is blocked. In this example, except for the seed metering device that can accurately sow pelletized seeds, the rest of the seeder structure is an existing mature technology and will not be described here. When sowing, first pour the seeds into the seed box, push the seeder forward and roll, and the seed metering device rotates at the same time. The driving wheel drives the profile hole belt to rotate, and the seeds enter the seed chamber from the seed box. The seeds are filled into the profile hole under the action of their own weight, and fall from the duckbill to the ground as the seed metering device rotates, so that 4 sorghum pelletized seeds are sown in one hole at a time, meeting the requirements of precision sowing of sorghum pelletized seeds.

[0052] It has been verified in practice that the seed metering devices for precision sowing of pelletized seeds in the above-mentioned examples, compared with the seed metering devices of ordinary seeders, can effectively solve the problems of pelletized shell breakage, inability to sow accurately, clogging of seeders, durability and reliability during sowing of pelletized seeds. These advantages make the pelletized seed metering device of the present application adaptable to the requirements of precision sowing of pelletized seeds such as sorghum, with good tolerance and high accuracy, and has a wider application prospect in agricultural production.

Claims

1. A seed meter capable of accurately sowing pelletized seeds, characterized in that: The invention comprises a seeding ring (1) and a mounting ring (2); the mounting ring (2) is arranged on the inner side of the seeding ring (1); the outer ring of the mounting ring (2) is connected to the inner ring of the seeding ring (1); and the mounting ring (2) is provided with a mounting hole (201); the width of the outer ring of the seeding ring (1) is ≥30 mm; the outer ring of the seeding ring (1) is provided with more than 3 rows and more than 10 columns of equal-sized shaped holes (101) arranged along the circumferential direction; the number of shaped holes (101) in each row is equal and arranged at equal intervals; the number of shaped holes (101) in each column is equal and arranged at equal intervals; the top of the shaped holes (101) is an open structure and the bottom is a closed end structure; the tops of all the shaped holes (101) are flush with the surface of the outer ring of the seeding ring (1); the diameter of the shaped holes (101) is 2 to 5 mm and the depth is 2 to 5 mm.

2. The seed metering device capable of accurately sowing pelletized seeds as claimed in claim 1, characterized in that: The bottom of the mold hole (101) is in the form of an arc surface.

3. The seed metering device capable of accurately sowing pelletized seeds as claimed in claim 1 or 2, characterized in that: The width of the seeding ring (1) is 34±0.2 mm, and there are four shaped holes (101) in the same row.

4. The seed metering device capable of accurately sowing pelletized seeds as claimed in claim 1 or 2, characterized in that: The outer ring of the seeding ring (1) is provided with 4 rows and 14 columns of equal-sized shaped holes (101) arranged in the circumferential direction.

5. The seed metering device capable of accurately sowing pelletized seeds as claimed in claim 1 or 2, characterized in that: The interval between two adjacent rows of holes (101) is 4±0.2 mm.

6. The seed metering device capable of accurately sowing pelletized seeds as claimed in claim 1 or 2, characterized in that: The outer ring of the mounting ring (2) is connected to the middle position of the inner ring of the seeding ring (1) in the width direction.

7. The seed metering device capable of accurately sowing pelletized seeds as claimed in claim 1 or 2, characterized in that: The seeding ring (1) and the mounting ring (2) are an integrated structure.

8. The seed metering device capable of accurately sowing pelletized seeds as claimed in claim 1 or 2, characterized in that: The material used for the seeding ring (1) and the mounting ring (2) is polytetrafluoroethylene.

9. The seed metering device capable of accurately sowing pelletized seeds as claimed in claim 1 or 2, characterized in that: The mounting ring (2) is provided with symmetrically arranged weight-reducing holes (202).

10. A seeder capable of accurately sowing sorghum pelletized seeds, characterized in that: The seed metering device used is the seed metering device (8) capable of accurately sowing pelletized seeds as described in any one of claims 1 to 9.

Images