Novel mechanical soybean seed sowing device

Abstract

The invention discloses a novel mechanical soybean seed sowing device which is composed of a seed box, a front shell, a seed sowing disc, a rear shell and a shaft, the seed box is located at the upper end of a seed supply pipe of the front shell, and the rear shell is connected with the seed sowing disc through the shaft and connected with the front shell through a buckle structure. A seed metering cavity partition plate and a reserved seed cavity seed protecting plate on the front shell divide the hole into a seed metering cavity body and a reserved cavity body, a seed metering disc is provided with a seed hole, and the seed hole is provided with a matching groove matched with the seed metering cavity partition plate. The problem that seeds are poor in seed filling capacity during precision sowing is effectively solved, designed holes are matched with a reserved seed cavity seed protecting plate and a seed discharging cavity partition plate on the front shell, the seeds are arranged in the holes in sequence, the seeds are distributed into a reserved cavity and a seed discharging cavity, and after the seeds in the seed discharging cavity are discharged, the seeds are fed into the reserved cavity and the seed discharging cavity. The seeds in the reserved cavity are not influenced by the population and slide into the bottom of the hole preferentially, and reliable filling is completed.

Description

Technical Field

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

[0002] According to the data, the soybean planting area in my country has gradually increased in recent years. 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, so as to achieve accurate quantitative, fixed-distance, and fixed-depth sowing. 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, which has the advantages of 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 cleared, 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 purpose of the present invention is to provide a novel mechanical soybean seeding device to overcome existing defects, improve the reliability of seed filling holes, reduce seed leakage rate and reseeding rate, improve the overall working performance of the seeding device, and achieve precision sowing of soybeans.

[0004] In order to achieve the above object, the present invention provides the following technical solutions: The present invention is a novel mechanical soybean seeding device, which is characterized in that it consists of a seed box, a front shell, a seeding disc, a rear shell, and a shaft. The seed box is connected to the seed supply pipe inlet of the front shell. The front shell is provided with a seed supply pipeline, a seeding cavity partition, a reserved seed cavity seed protection plate, and a snap structure. The matching groove on the seeding disc hole is tightly matched with the seeding cavity partition and the reserved seed cavity seed protection plate on the front shell to form a seeding cavity and a reserved cavity, which are connected to the conical seed cavity.

[0005] The seed cavity partition plate has a curved rounded structure, one end of the reserved seed cavity seed protection plate has a curved tip structure, and the other end has an anti-seed jamming structure, the rear shell and the front shell are connected together with the snap-on structure and the snap-on hole, and are connected to the seed disk through an axis, the seed disk is provided with a seed-shaped hole, and the seed-shaped hole has a matching groove that matches the seed cavity partition plate, and the arc length of the reserved seed cavity seed protection plate and the seed cavity partition plate is within the range of 208° on the upper right.

[0006] As a preferred technical solution of the present invention, 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.

[0007] In the above technical solution, the novel mechanical soybean seed metering device provided by the present invention has the following beneficial effects: 1. The mechanical soybean seed-drilling device of the present invention has a structural arrangement of the shaped holes so that the seeds can be arranged in sequence. By arranging a seed-drilling cavity partition and a reserved seed cavity seed-protecting plate on the front shell body, the chamber separation is used to realize seed diversion, and a seed can be reserved in the reserved cavity. After the seed-drilling is completed, the seeds in the reserved cavity directly enter the shaped holes without being affected by the external seed population, thereby realizing reliable seed filling.

[0008] 2. The mechanical soybean seed metering device of the present invention realizes seed filling, partial seed clearing, seed reservation and seed discharge, so that the reserved seed cavity and seed discharge cavity of each shaped hole only capture one seed, thereby improving the reliability of seed filling and seed discharge, effectively reducing the probability of missed seeding and re-seeding of the seed metering device, and achieving the purpose of precision seeding.

[0009] 3. The mechanical soybean seeding device of the present invention has a reserved cavity and a seeding cavity formed by the outer periphery of the front shell, the seeding disk, and the rear shell in close cooperation with the shaft and the buckle, and has the advantages of compact structure and easy disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0011] Figure 1 The structure of the present invention is schematically shown Figure I ; Figure 2 The structure of the present invention is schematically shown Figure II ; Figure 3 It is a schematic diagram of the matching structure between the front housing and the seeding disc of the present invention; Figure 4 It is a structural schematic diagram of the front side of the front housing of the present invention; Figure 5 It is a structural schematic diagram of the back side of the front housing of the present invention; Figure 6 It is a structural schematic diagram of the seeding disc of the present invention; Figure 7 It is a schematic diagram of the structure of the matching relationship between the front housing, the rear housing and the seeding disc of the present invention; Figure 8 It is a structural schematic diagram of the rear housing of the present invention; 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

[0012] The technical solutions in the embodiments of the present invention will be further described in detail below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0013] like Figure 1-8 The present invention provides a novel mechanical soybean seeding device, which includes a seed box 1, a front shell 2, a seeding disc 3, a rear shell 4, and a shaft 5.

[0014] 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 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 arc length of the seed cavity partition 25 and the reserved seed partition 26 is set in the range of 208° and ends at the lower right. The seeds in the reserved cavity 28 smoothly enter the mold 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.

[0015] The seeding disk shaft hole 33 and the rear shell shaft hole 42 are connected together by the shaft 5. The seeding disk 3 can rotate with the shaft 5 through 6 bearings. The shaped holes 31 are evenly arranged in 40 numbers along the outer circumference of the seeding disk 3, and have 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 with an inclination angle of 155° and is rounded to prevent seed jamming. 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.

[0016] The specific working process of the mechanical soybean seed metering device according to the embodiment of the present invention is as follows: The soybean seeds are accumulated in the seed box 1 and pass through the seed supply tube 21, 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 31 under the action of gravity. 3. The seeds in the middle part 315 of the shaped hole enter the reserved cavity, and the seeds at the bottom 314 of the shaped hole enter the seeding cavity 29 to complete the seed clearing and diversion process. Then the seeding disc 3 continues to rotate to the end position of the seeding cavity seed partition 25 and the reserved seed cavity seed protection plate 26. 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 pass through the anti-seed jamming structure 27 and preferentially enter the bottom of the shaped hole 31. The seeds of the external population continue to be arranged in sequence to fill the shaped hole 31 to complete the reliable seed filling and proceed to the next round of work cycle.

[0017] Although embodiments of the present invention have been shown and described, it will be understood 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, all of which should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A new type of mechanical soybean seed metering device, characterized by: The invention is composed of a seed box (1), a front shell (2), a seed discharging disk (3), a rear shell (4), and a shaft (5); the seed box (1) is connected to a seed supply pipe inlet (211) of the front shell (2); the front shell (2) is provided with a seed supply pipeline (21), a seed discharging cavity partition (25), a reserved seed cavity seed protection plate (26), and a snap structure (24); the matching groove on the shaped hole (31) of the seed discharging disk (3) is tightly matched with the seed discharging cavity partition (25) and the reserved seed cavity seed protection plate (26) on the front shell (2) to form a seed discharging cavity (29) and a reserved cavity (28), which are connected to the conical surface seed cavity (221). The seed discharging cavity partition (25) has a curved rounded corner structure (251), 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 ​​hole (41) through a snap-fit ​​structure (24), and are connected together with the seed discharging disk (3) through an axis (5), the seed discharging disk (3) is provided with a seed-shaped hole (31), and the seed-shaped hole (31) has a matching groove (32) that matches the seed discharging cavity partition (25), and the arc length of the reserved seed cavity seed protection plate (26) and the seed discharging cavity partition (25) is within the range of 208° at the upper right.

2. 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.

3. A novel mechanical soybean seed metering device according to claim 2, characterized in that: The left side of the front shell (2) is provided with a seed discharging port (23), and three buckle structures (24) are evenly distributed on the circumference.

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