Seed-metering device capable of stably planting

Abstract

The utility model belongs to the field of agricultural machinery, in particular relates to a seed-metering device capable of stably planting, and aims to solve the problems that the planting effect is influenced due to the fact that seeds are clamped in a spoon and cannot normally fall off, the seeding precision is influenced by a finger clamping spring, cavities or double plant distances are easy to occur, the working income of farmers is influenced, and the working efficiency is high. In order to solve the problem that the whole machine is not ideal in seeding when the pneumatic force is abnormal, the utility model provides the following scheme: the device comprises an inner seed box and a storage box arranged at the top of the inner seed box, the storage box is communicated with the inner seed box, the top of the storage box is provided with a feed port, and the bottom of the inner seed box is provided with a discharge port; the seed wheel is used for sowing work, the seed wheel is arranged in the inner seed box, after the seeds are received through the rotating seed wheel, the sowing effect is achieved after the seed wheel is rotated, meanwhile, a seed clearing knife arranged in the seed wheel can ensure that the seeds can stably fall off, the seeds are prevented from being clamped in a seed spoon, and therefore the effect that the seeds smoothly fall off for planting is ensured.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a seed metering device that can stabilize planting. Background Technology

[0002] The main function of a seed metering device is to discharge seeds from the seed box at a predetermined speed and quantity, and to sow them evenly into the soil. Common seed metering devices include finger-clamp seed metering devices, spoon seed metering devices, and air suction seed metering devices. However, all of the above seed metering devices have certain defects when used.

[0003] Spoon-type seed metering device: During high-speed rotation, seeds may get stuck in the spoon, preventing them from falling out properly and thus affecting the planting effect;

[0004] Finger clamp seed metering device: The finger clamp seed metering device sows seeds by using a contoured finger clamp. The sowing accuracy is affected by the finger clamp spring, which can easily result in empty holes or double plant spacing, affecting farmers' operating income.

[0005] Air suction seed metering device: The air suction seed metering device uses air force to adsorb seeds onto the seed metering tray. When the pressure is lost, the seeds fall into the seed guide tube. However, the air pressure is attenuated by the air pipeline, resulting in insufficient air force at the remote end of the seed metering device. This can lead to uneven seeding on the same machine or abnormal air force, resulting in unsatisfactory seeding of the whole machine.

[0006] Therefore, there is a need for a seed metering device that can ensure successful seed dropping and planting, and that is simple in structure and stable. Utility Model Content

[0007] The purpose of this invention is to solve the problems in the existing technology, such as seeds getting stuck in the spoon and not falling properly, thus affecting the planting effect; the sowing accuracy being affected by the finger clamp spring, which easily leads to empty holes or double plant spacing, affecting farmers' operating income; and the whole machine sowing being unsatisfactory when the air force is abnormal. Therefore, a seed metering device that can stabilize planting is proposed.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A seed metering device capable of stable planting includes an inner seed box and a storage box disposed on top of the inner seed box. The storage box is connected to the inner seed box. The top of the storage box is provided with a feed inlet, and the bottom of the inner seed box is provided with a discharge outlet.

[0010] A seed wheel is used for sowing. The seed wheel is set inside the inner seed box. The surface of the seed wheel has multiple rows of seed scoops, and each row has multiple seed scoops arranged in a ring.

[0011] Multiple seed cleaning blades are used to clean seeds stuck inside the seed scoops. The multiple seed cleaning blades are fixedly installed inside the inner seed box and are located below the seed wheel. The outer wall of the seed wheel has multiple rows of blade grooves, and each row of blade grooves is connected to multiple seed scoops in the same row. The multiple seed cleaning blades cooperate with the multiple blade grooves respectively.

[0012] A protective mechanism, used to ensure the smooth discharge of seeds, is located inside the inner seed box.

[0013] In one possible design, the protective mechanism includes a brush, and a bearing seat is installed on both sides of the inner seed box. The two bearing seats are connected by a bearing and a drive shaft is mounted on them. The drive shaft rotates through the inner seed box. The brush is fixedly sleeved on the outer wall of the drive shaft and cooperates with the outer wall of the seed wheel.

[0014] In one possible design, a No. 2 bearing seat is installed on one side of the inner seed box, a No. 2 drive shaft is provided inside the inner seed box, and one end of the No. 2 drive shaft rotates through the inner seed box. The No. 2 drive shaft is installed in the No. 2 bearing seat through a bearing, and the seed wheel is fixedly sleeved on the outer wall of the No. 2 drive shaft.

[0015] In one possible design, the first drive shaft is fixedly fitted with a drive shaft sprocket and a driven sprocket at both ends of the outer wall outside the inner seed box, and the second drive shaft is fixedly fitted with a driven sprocket at one end of the outer wall outside the inner seed box.

[0016] In one possible design, the protective mechanism further includes a seed baffle plate, which is fixedly installed inside the inner seed box and located below the brush, and the seed baffle plate cooperates with the outer wall of the seed wheel.

[0017] In one possible design, a compression spring is fixedly installed inside the inner seed box, and the compression spring cooperates with the seed baffle plate.

[0018] In this application, during actual use, seeds are added into the storage box through the feed inlet. A motor or other device powers a sprocket to rotate. This sprocket is connected to the drive shaft sprocket by the same chain, which in turn drives the drive shaft sprocket to rotate. The drive shaft sprocket drives a moving sprocket via a first drive shaft, which in turn drives a driven sprocket. The driven sprocket, through a second drive shaft, drives the seed wheel to rotate. This causes the seeds to rotate after falling into the seed scoop on the outer wall of the seed wheel. When the seeds are facing downwards, they fall freely under the influence of gravity and exit through the discharge port, achieving the effect of seed discharge. Furthermore, since the ends of the seed cleaning blades are located in the same row of blade grooves, even if seeds are stuck inside the seed scoop and cannot fall out, they will still touch the seed cleaning blades and be scraped out, ensuring that the seeds can fall smoothly.

[0019] In this utility model, the seed metering device that can stabilize planting can remove excess seeds after the seeds fall into the seed wheel by using a brush, ensuring that there is only one seed in each seed wheel, thereby ensuring the accuracy of planting.

[0020] In this utility model, the seed metering device that can stabilize planting can achieve the following through the seed baffle: after the seed wheel drives the seed through the brush, it will stick to the seed baffle, ensuring that the seed will not fall off the seed scoop before falling, thereby ensuring the sowing accuracy. In addition, the compression spring set on the back can abut against the seed baffle and stick to the seed wheel, thereby ensuring the holding function of the seed baffle.

[0021] In this invention, during use, the rotating seed wheel achieves the sowing effect after receiving the seed, while the internal seed cleaning blade ensures that the seed falls stably and avoids the seed getting stuck inside the seed scoop, thus ensuring the seed falls smoothly for planting. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of a seed metering device capable of stable planting proposed in this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of a seed wheel for a seed metering device that can stably plant, as proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the planar structure of a seed wheel for a seed metering device that can stably plant, as proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the top planar structure of a seed metering device capable of stable planting proposed in this utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of a seed metering device capable of stable planting proposed in this utility model;

[0027] Figure 6 This is a schematic diagram of the internal planar structure of a seed metering device capable of stable planting proposed in this utility model.

[0028] Figure 7 This is a schematic diagram of the planar structure of the seed metering device and seed cleaning blade that can stably plant according to the present invention;

[0029] Figure 8 This is a three-dimensional structural diagram of a seed metering device with a seed baffle plate that can stably plant according to the present invention.

[0030] Figure 9 This is a three-dimensional structural diagram of the compression spring of the seed metering device that can stably plant according to the present invention.

[0031] In the diagram: 1. Inner seed box; 2. Storage box; 3. Drive shaft 1; 4. Drive shaft 2; 5. Seed wheel; 6. Seed spoon; 7. Knife groove; 8. Drive shaft sprocket; 9. Moving sprocket; 10. Driven sprocket; 11. Compression spring; 12. Seed baffle plate; 13. Seed cleaning knife; 14. Bearing seat 1; 15. Bearing seat 2; 16. Brush. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Example 1

[0034] Reference Figure 1 A seed metering device includes an inner seed box 1 and a storage box 2. The inner seed box 1 stores seeds to be sown, while the storage box 2 is located on top of the inner seed box 1 and connected to it, ensuring that seeds can smoothly fall from the storage box 2 into the inner seed box 1. The top of the storage box 2 has an inlet for adding seeds. The bottom of the inner seed box 1 has an outlet for discharging seeds.

[0035] Reference Figure 2-3 Inside the inner seed box 1, there is a seed wheel 5 for sowing. The surface of the seed wheel 5 has multiple rows of seed scoops 6, and each row of seed scoops 6 has multiple scoops arranged in a ring to hold and carry seeds for sowing.

[0036] Reference Figure 6-7 To ensure that the seeds in the seed scoop 6 are not stuck and cannot be discharged smoothly, multiple seed cleaning knives 13 are provided. These seed cleaning knives 13 are all fixedly installed inside the inner seed box 1, located below the seed wheel 5. The outer wall of the seed wheel 5 has multiple rows of knife grooves 7, and each row of knife grooves 7 is connected to multiple seed scoops 6 in the same row. When the seed wheel 5 rotates, the seed cleaning knives 13 pass through the knife grooves 7 to clean the seeds in the seed scoops 6, ensuring that the seeds can be discharged smoothly.

[0037] This application can be used in the field of agricultural machinery, or in other fields applicable to this application.

[0038] Example 2

[0039] refer to Figure 5 An improvement based on Example 1: a seed metering device that can stably plant seeds, which is applied to the field of agricultural machinery. In order to ensure that the seeds can be discharged smoothly, a protective mechanism is provided. The protective mechanism includes a brush 16, which is fixedly sleeved on both sides of the inner seed box 1 through a first drive shaft 3.

[0040] Reference Figure 4-5 The first drive shaft 3 is mounted on both sides of the inner seed box 1 via two first bearing seats 14 and rotates through the inner seed box 1. The brush 16 cooperates with the outer wall of the seed wheel 5 to remove excess seeds after the seeds fall into the inside of the seed wheel 5, ensuring that there is only one seed in each seed wheel 5, thereby ensuring the accuracy of sowing. The brush 16 has a cylindrical structure, and corresponding bristles are arranged in a ring on the outer wall of the cylinder.

[0041] The seed wheel 5 is fixedly sleeved inside the inner seed box 1 via the second drive shaft 4. One end of the second drive shaft 4 rotates through the inner seed box 1 and is mounted on one side of the inner seed box 1 via the second bearing seat 15.

[0042] A transmission mechanism is installed to drive the rotation of drive shaft 3 and drive shaft 4. Drive shaft sprocket 8 and driven sprocket 9 are fixedly mounted on both ends of the outer wall of the inner seed box 1, while driven sprocket 10 is fixedly mounted on one end of the outer wall of the inner seed box 1. The driven sprocket 9 and driven sprocket 10 are connected by the same chain, thus achieving synchronous rotation.

[0043] Specifically, seeds are added into the storage box 2 through the feed inlet. A motor or other device powers a sprocket to rotate. This sprocket is connected to the drive shaft sprocket 8 by the same chain, which in turn drives the drive shaft sprocket 8 to rotate. The drive shaft sprocket 8 drives the moving sprocket 9 to rotate via the first drive shaft 3. The moving sprocket 9 drives the driven sprocket 10 to rotate via the sprocket. The driven sprocket 10 drives the seed wheel 5 to rotate via the second drive shaft 4. This causes the seeds to rotate after falling into the seed scoop 6 on the outer wall of the seed wheel 5. When the seeds are facing downwards, they fall freely under the influence of gravity and are discharged through the discharge port, achieving the effect of seed discharge. Since the end of the seed cleaning knife 13 is located in the same row of knife grooves 7, when seeds are stuck inside the seed scoop 6 and cannot fall, they will touch the seed cleaning knife 13 and be scraped out, ensuring that the seeds can fall smoothly.

[0044] Reference Figure 6 , Figure 8 , Figure 9 To further enhance the protective effect, a seed baffle 12 is fixedly installed inside the inner seed box 1. The seed baffle 12 is located below the brush 16 and cooperates with the outer wall of the seed wheel 5. At the same time, a compression spring 11 is also fixedly installed inside the inner seed box 1, which cooperates with the seed baffle 12. The seed baffle 12 can ensure that the seeds do not fall off the seed spoon 6 before falling, thereby ensuring the sowing accuracy. The compression spring 11 on the back can abut against the seed baffle 12 and fit against the seed wheel 5, thereby ensuring the holding function of the seed baffle 12.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A seed metering device capable of stable planting, characterized in that, include: The inner seed box (1) and the storage box (2) set on the top of the inner seed box (1) are connected to the inner seed box (1). The top of the storage box (2) is provided with a feed inlet, and the bottom of the inner seed box (1) is provided with a discharge outlet. Seed wheel (5) is used for sowing. The seed wheel (5) is set inside the inner seed box (1). The surface of the seed wheel (5) has multiple rows of seed scoops (6), and each row of seed scoops (6) has multiple scoops arranged in a ring. Multiple seed cleaning knives (13) are used to clean seeds stuck inside the seed scoops (6). The multiple seed cleaning knives (13) are fixedly installed inside the inner seed box (1) and are located below the seed wheel (5). The outer wall of the seed wheel (5) has multiple rows of knife grooves (7), and each row of knife grooves (7) is connected to multiple seed scoops (6) in the same row. The multiple seed cleaning knives (13) are respectively matched with multiple knife grooves (7). A protective mechanism is provided to ensure that the seeds are discharged smoothly, and the protective mechanism is located inside the inner seed box (1).

2. The seed metering device capable of stable planting according to claim 1, characterized in that, The protective mechanism includes a brush (16). A bearing seat (14) is installed on both sides of the inner seed box (1). The same transmission shaft (3) is installed between the two bearing seats (14) through a bearing. The transmission shaft (3) rotates through the inner seed box (1). The brush (16) is fixedly sleeved on the outer wall of the transmission shaft (3). The brush (16) cooperates with the outer wall of the seed wheel (5).

3. The seed metering device capable of stable planting according to claim 2, characterized in that, A second bearing seat (15) is installed on one side of the inner seed box (1). A second drive shaft (4) is provided inside the inner seed box (1), and one end of the second drive shaft (4) rotates through the inner seed box (1). The second drive shaft (4) is installed in the second bearing seat (15) through a bearing. The seed wheel (5) is fixedly sleeved on the outer wall of the second drive shaft (4).

4. A seed metering device capable of stable planting according to claim 3, characterized in that, The first drive shaft (3) is fixedly fitted with a drive shaft sprocket (8) and a moving sprocket (9) at both ends of the outer wall outside the inner seed box (1), and the second drive shaft (4) is fixedly fitted with a driven sprocket (10) at one end of the outer wall outside the inner seed box (1).

5. A seed metering device capable of stable planting according to claim 4, characterized in that, The protective mechanism also includes a seed baffle (12), which is fixedly installed inside the inner seed box (1) and located below the brush (16). The seed baffle (12) cooperates with the outer wall of the seed wheel (5).

6. A seed metering device capable of stable planting according to claim 5, characterized in that, The inner seed box (1) is fixedly equipped with a compression spring (11), and the compression spring (11) cooperates with the seed baffle plate (12).

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