Novel mechanical soybean seed sowing device

Abstract

The utility model discloses a novel mechanical soybean seed-metering device, which comprises a seed box, a front shell, a seed-metering disc, a rear shell and a shaft, the seed box is connected on the front shell, the front shell is provided with a seed supply pipeline, a seed-metering cavity partition plate, a reserved seed cavity seed protection plate and a buckle structure, the cavity partition plate is provided with a curve fillet structure, and the buckle structure is provided with a groove. One end of the reserved seed cavity seed protection plate is provided with a curve tip structure, the other end of the reserved seed cavity seed protection plate is provided with a seed clamping prevention structure, the rear shell is provided with a hole site, is connected with the front shell through a buckle and is connected with the seed-metering disc through a shaft, the seed-metering disc is provided with a seed hole, the seed hole is provided with a matching groove matched with a seed-metering cavity partition plate, and the seed-metering cavity partition plate is provided with a seed-metering groove matched with the seed-metering cavity partition plate. And the seed metering disc is matched with the front shell to respectively realize four processes of seed filling, partial seed cleaning, seed reserving and seed metering. The soybean seed sowing device disclosed by the utility model is simple in structure, the seed filling reliability can be improved, the possibility of miss-seeding of soybean seeds can be effectively reduced, and the soybean precision seeding is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a novel mechanical soybean seeding device. Background Art

[0002] High-speed precision seeding technology is used to sow a certain amount of seeds into the soil at a certain depth according to agronomic requirements, achieving accurate quantitative, fixed-distance, and fixed-depth seeding. By improving the uniformity of crop distribution between rows, the competition between plants for soil moisture, sunlight, and other nutrients required by crops is reduced, thereby increasing yields, saving seeds and labor. The existing mechanical soybean seeding device has a relatively simple structure. The soybean seeds are filled into the mold holes by rotating the spoon wheel or the socket wheel, and then rotated to the seed clearing area. The excess seeds in the spoon are removed, leaving only one seed that enters the partition and continues to rotate to the seeding area to complete the seeding. However, this structure has a poor seed filling effect during high-speed operation, and it is very easy to miss or re-seed, which cannot meet the needs of high-speed precision seeding. Summary of the invention

[0003] The utility model aims to provide a novel mechanical soybean seeding device to overcome the existing defects, reduce the seed leakage rate and re-seeding rate, improve the overall working performance of the seeding device, and realize the precision sowing of soybeans.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A novel mechanical soybean seeding device, characterized in that it consists of a seed box, a front shell, a seeding disk, a rear shell and a shaft, the seed box is connected to the front shell, the front shell is provided with a seed supply pipe, a seeding cavity partition, a reserved seed cavity seed protection plate and a snap structure, the cavity partition is provided with a curved rounded structure, the reserved seed cavity seed protection plate has a curved tip structure at the starting end and an anti-seed jamming structure at the ending end, the rear shell has snap holes and is connected to the front shell through the snap structure, three snaps are evenly distributed on the outer circumference of the front shell, and are connected to the seeding disk through the shaft, the seeding disk is provided with seed-shaped holes, and the seed-shaped holes have matching grooves that match the seeding cavity partition.

[0006] As a preferred technical solution of the utility model, the seed box is connected to the seed supply tube of the front shell body, the seed supply tube inlet is at the upper left of the front shell body conical surface, and the seed supply tube outlet is at the lower left of the front shell body conical surface. The seed cavity partition, the reserved seed cavity seed protection plate and the seed disk are tightly matched with the rear shell body, the seed protection plate and the seed disk to form a reserved cavity and a seed cavity. The arc length of the reserved cavity partition and the seed cavity partition is within the range of 208° on the upper right, and the lower right end of the reserved cavity partition has an anti-seed jamming structure.

[0007] As a preferred technical solution of the utility model, the seed disc can rotate driven by the shaft through the bearing, and the shaped holes are evenly distributed in 40 on the outer circumference of the seed disc, and there are matching grooves that match with the seed cavity partition. The lower end of the left wall of the shaped hole is set with a 155° inclination angle to prevent seeds from getting stuck, and the left wall is deflected 158° to the right upward, and the arc right wall cooperates with the left wall to allow the seeds to enter the shaped hole smoothly.

[0008] 1. The mechanical soybean seeding device of the utility model realizes chamber separation by arranging a seeding chamber partition and a reserved seed chamber seed protection plate on the front shell body, so that a seed can be reserved in the reserved chamber. After the seeding is completed, the seeds in the reserved chamber directly enter the mold hole without being affected by the external seed population, thereby realizing reliable seed filling.

[0009] 2. The mechanical soybean seeding device of the utility model realizes seed filling, partial seed clearing, seed reservation and seed discharge of the seeding device, so that the reserved seed cavity and seed discharge cavity of each shaped hole only capture one seed, thereby improving the seed filling reliability, effectively reducing the probability of missed seeding and re-seeding of the seeding device, and achieving the purpose of precision seeding.

[0010] 3. The mechanical soybean seeding device of the utility model has a reserved cavity and a seeding cavity which are formed by the outer periphery of the front shell, the seeding disk and the rear shell through the close cooperation of the shaft and the buckle, and has the advantages of compact structure and easy disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] FIG1 is a schematic diagram of the structure of the utility model;

[0013] Figure 2 is a schematic diagram of the structure of the utility model;

[0014] FIG3 is a schematic diagram of the matching structure between the front housing and the seeding disc of the utility model;

[0015] FIG4 is a schematic structural diagram of the front side of the front housing of the present invention;

[0016] FIG5 is a schematic structural diagram of the back side of the front housing of the present invention;

[0017] FIG6 is a schematic diagram of the structure of the seeding plate of the utility model;

[0018] FIG. 7 is a schematic diagram of the matching structure between the front housing, the rear housing, and the seeding disc of the utility model;

[0019] FIG8 is a schematic structural diagram of the rear housing of the present invention;

[0020] Figure numerals: 1. seed box; 2. front shell; 21. seed supply tube; 211. seed supply tube inlet; 212. seed supply tube outlet; 22. front shell conical surface; 221. conical seed cavity; 23. seed discharge port; 24. snap-fit ​​structure; 25. seed discharge cavity partition; 251. curved rounded corner structure; 26. reserved seed cavity seed protection plate; 261. curved tip structure; 27. anti-seed jamming structure; 28. reserved cavity; 29; seed discharge cavity; 3. seed discharge disc; 31. shaped hole; 311. left wall; 312. right wall; 313. shaped hole mouth; 314. shaped hole bottom; 315. shaped hole middle; 32. matching groove; 33. axial hole of seed discharge disc; 4. rear shell; 41. snap-fit ​​hole position; 42. axial hole of rear shell; 5. shaft; 6. bearing. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be further described in detail below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] As shown in FIGS. 1-8 , the utility model provides a novel mechanical soybean seeding device, including a seed box 1 , a front shell 2 , a seeding disc 3 , a rear shell 4 , and a shaft 5 .

[0023] The seed box 1 stores soybean seeds and is connected to the seed supply tube inlet 211 of the front shell 2. The front shell 2 and the rear shell 4 are connected together with the buckle hole 41 through the buckle 24. The seed supply tube outlet 212 on the front shell 2 allows the seeds to smoothly enter the conical seed cavity 221. The conical surface 22 of the front shell allows the seeds to move downward into the mold hole 31. The seed cavity partition 25 and the reserved seed protection plate 26 starting from the upper left of the back side of the front shell 2 are tightly matched with the seed plate 3 to form a seed cavity 29 and a reserved cavity 28 to divert the seeds. The seed cavity partition 25 is provided with a curved rounded corner structure 251 to make the separation of the two arranged seeds smoother. The reserved seed protection plate 26 is provided with a curved tip structure 261 to receive the reserved seeds and partially cleared seeds. The seed cavity partition 25 and the reserved seed partition 26 are set with an arc length within the range of 208°, ending at the lower right, and the seeds in the reserved cavity 28 smoothly enter the molded hole 31 to complete the seed filling. The seed cavity partition 25 is provided with an anti-seed jamming structure 27 to prevent seed clogging.

[0024] The seeding disc shaft hole 33 and the rear housing shaft hole 42 are connected together through the shaft 5. The seeding disc 3 can rotate with the shaft 5 through the 6 bearings. The shaped holes 31 are evenly arranged in 40 numbers along the outer circumference of the seeding disc 3, and are provided with matching grooves 32 that match with the seeding cavity partition 25. The lower end of the left wall surface 311 of the shaped hole is set at an inclination angle of 155° and is rounded to prevent seeds from getting stuck. The upper left wall surface 311 is deflected 158° to the right, and the arc right wall surface 312 cooperates with the left wall surface 311 to allow seeds to enter the shaped hole 31 smoothly.

[0025] The specific working principle of the mechanical soybean seed metering device of the utility model embodiment is as follows:

[0026] The soybean seeds are accumulated in the seed box 1, pass through the seed supply tube 21, and go along the conical surface 22 of the front shell body to the conical seed cavity 221. As the shaft 5 drives the seed plate 3 to rotate, 3 to 4 seeds in the seed group enter the shaped hole 31 and are arranged in sequence. As the seed plate 3 rotates, the seeds in the shaped hole 31 reach the starting position of the seed cavity partition 25 and the reserved seed protection plate 26. Due to the close fit between the seed cavity partition 25, the reserved seed protection plate 26 and the seed plate 3, and the setting of the shaped hole structure, 1 to 2 seeds in the shaped hole 31 fall out of the shaped hole mouth 313 under the action of gravity, and the seeds in the middle 315 of the shaped hole enter the reserved cavity, and the seeds at the bottom 314 of the shaped hole enter the seed cavity 29 to complete the seed clearing and diversion process. Then the seed plate 3 continues to rotate until the seed cavity partition 25 and the reserved seed cavity protection plate 26 At the end position, the seeds in the seeding cavity 29 are discharged from the seeding port 23 by gravity to complete the seeding work. The seeds in the reserved cavity 28 first enter the bottom of the mold hole 31 after passing through the anti-stuck structure 27, and the seeds of the external population continue to be arranged in sequence to fill the mold hole 31 to complete the seed filling process and proceed to the next round of work cycle.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of mechanical soybean seed metering device, characterized by: The invention comprises a seed box (1), a front shell (2), a seeding disc (3), a rear shell (4), and a shaft (5); the seed box (1) is connected to the front shell (2); the front shell (2) is provided with a seed supply pipe (21), a seeding cavity partition (25), a reserved seed cavity seed protection plate (26), and a buckle structure (24); the seed supply pipe (21) is provided with a seed supply pipe inlet (211) and a seed supply pipe outlet (212); the seeding cavity partition (25) is provided with a curved rounded corner structure (25 1), the reserved seed cavity seed protection plate (26) has a curved tip structure (261) at one end and a seed blocking prevention structure (27) at the other end, the rear shell (4) and the front shell (2) are connected together with the snap-fit ​​structure (24) and the snap-fit ​​hole (41), and are connected together with the seeding disk (3) through the shaft (5), the seeding disk (3) is provided with a seed-shaped hole (31), and the seed-shaped hole (31) has a matching groove (32) that matches the seeding cavity partition (25).

2. A novel mechanical soybean seed metering device according to claim 1, characterized in that: The seed box (1) is connected to the seed supply pipe (21) of the front shell (2); the seed supply pipe inlet (211) is located at the upper left of the conical surface (22) of the front shell; the seed supply pipe outlet (212) is located at the lower left of the conical surface (22) of the front shell; the seed discharge cavity partition (25), the reserved seed cavity seed protection plate (26) and the seed discharge plate (3) are tightly matched to form a reserved cavity (28) and a seed discharge cavity (29); the arc lengths of the reserved seed cavity seed protection plate (26) and the seed discharge cavity partition (25) are within the range of 208° at the upper right; and a seed jam prevention structure (27) is provided at the lower right end of the reserved seed cavity seed protection plate (26).

3. A novel mechanical soybean seed metering device according to claim 1, characterized in that: The seeding disc (3) can rotate with the shaft (5) through the bearing (6). 40 shaped holes (31) are evenly distributed on the outer circumference of the seeding disc (3). There is a matching groove (32) on the shaped hole that matches with the seeding cavity partition (25). The lower end of the left wall surface (311) of the shaped hole is set at an inclination angle of 155° to prevent seeds from getting stuck. The upper left wall surface (311) is bent rightward by 158°. The arc right wall surface (312) cooperates with the left wall surface (311) to allow seeds to enter the shaped hole smoothly.

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