Air blast assisted seed guiding device

Abstract

The utility model provides a kind of air-blowing auxiliary seed guiding device, it is related to the field of agricultural seeding machinery.The device includes fixed in the seed guiding pipe of hole drill cover and the annular waistband synchronous rotation with seed metering disc.The seed guiding pipe one end is connected to positive pressure source, middle part is equipped with seed scraping mouth, and the seed scraping mouth position corresponds with seed taking hole on seed metering disc;The annular waistband is fixed to the periphery of seed metering disc, and the annular waistband is equipped with multiple seed throwing notches.Working, seed is adsorbed rotation to seed scraping mouth by seed taking hole and is scraped off, and enters into seed guiding pipe, subsequently by air flow and is blown into annular waistband place temporary storage, with annular waistband rotation to seed throwing notch, under the impetus of air flow, fast and accurately fall into hole tooth, realize fast seed guiding.The device structure is simple, work is reliable, can reduce the collision in seed guiding process, bounce, can fast seed throwing, applicable to high speed, efficient precision operation.

Description

Technical Field

[0001] This invention relates to the field of agricultural seeding machinery technology, and in particular to a seed guiding device for precision seeding, specifically a device that uses positive pressure airflow to assist in seed transport and sowing. Background Technology

[0002] In modern agriculture, high-speed precision seeding is a key technology for improving operational efficiency and reducing seed costs. Seed delivery is a crucial step in high-speed precision seeding technology. Traditional mechanical seed delivery tubes are adequate at low speeds, but as speeds increase, seeds collide and bounce within the tube, resulting in inconsistent arrival times and uncertain delivery trajectories, leading to missed sowing or inaccurate seed placement. This air-blown assisted seed delivery device features a simple structure, reliable operation, and reduces collisions and bounces during seed delivery, enabling rapid and precise seed delivery. Utility Model Content

[0003] The purpose of this invention is to provide an air-blowing assisted seed delivery device, which can achieve stable, controllable and precise seed delivery from the scraping to the throwing process, and can solve the problem of poor seed delivery accuracy under high-speed operation.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an air-blowing assisted seed guiding device, comprising: a fixed component: a fixedly installed seed guiding tube, one end of which is connected to a positive pressure air source, and a seed scraping port in the middle; a rotating component: an annular belt that can rotate synchronously with the seed metering disc, the annular belt being fixed to the outer periphery of the seed metering disc, and the belt having multiple seed-feeding notches arranged in a circumferential array; specifically, the seed guiding tube is fixed inside the seed planter cover, and the seed guiding tube forms an angle of 65°-75° with the horizontal. The internal air passage of the seed guiding tube is wide-narrow-wide, narrowing at the seed scraping port, which accelerates the airflow, creates a pressure difference, and makes it easier to suck in seeds. Specifically, the position of the seed scraping port is configured such that when the seed metering disc rotates, the seed-taking holes on it can move sequentially to the seed scraping port. During operation, the seeds are attracted by the seed-taking hole and rotated to the seed-scraping opening, where they are scraped off and enter the seed-guiding tube. They are then temporarily stored in the annular belt by airflow. As the annular belt rotates to the seed-feeding gap, the seeds fall quickly and accurately into the seed-forming teeth under the propulsion of the airflow.

[0005] This invention enables precise seed delivery while effectively preventing violent collisions and bouncing of seeds during transport, significantly reducing mechanical damage. The seed delivery mechanism can meet the requirements of high-speed sowing conditions, ensuring that the device maintains stable and reliable seed delivery performance even under high-speed operation. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the installation structure of a preferred embodiment of the air-blowing assisted seed guiding device.

[0007] Figure 2 This is a schematic diagram of an air-blowing seed delivery device, showing the structure of the device.

[0008] Figure 3 This is a schematic diagram of the seed-guiding tube and the seed-guiding tube, showing the structure and position of the seed-guiding tube.

[0009] Figure 4 This is a schematic diagram of the air passages inside the seed-guiding tube.

[0010] In the diagram: 1. Seed guide tube; 2. Seed metering tray; 3. Ring belt; 4. Seed picking hole; 5. Seed sower cover; 6. Hole forming teeth; 52. Seed; 53. Air inlet; 54. Seed scraping port; 55. Seed guide port; 56. Seed feeding notch. Detailed Implementation

[0011] The present invention will now be described in detail with reference to the accompanying drawings.

[0012] like Figure 1 As shown, a preferred application of the air-blowing assisted seed guiding device of the present invention is its integration into a disc-shaped toothed hole-opening seeder. This seeder includes a large seed-dispensing disc 2, on which seed-taking holes 4 and hole-forming teeth 6 are provided.

[0013] like Figure 2 , Figure 3 As shown, the air-blowing assisted seed guiding device includes a seed guiding tube 1 and an annular belt 3. The seed guiding tube 1 is fixed inside the seeder cover 5, and its air inlet 53 is connected to a positive pressure air source. The annular belt 3 is fixed to the outer circumference of the seed metering disc 2 and rotates synchronously with it. The annular belt 3 is provided with multiple seeding notches 56, which are arranged in a circumferential array.

[0014] like Figure 4 As shown, the internal air passage of the seed-guiding tube 1 is wide-narrow-wide, and narrow at the seed scraping port 54, which accelerates the airflow, creates a pressure difference, and makes it easier to draw in seeds.

[0015] During operation, the seed metering disc 2 rotates, and the seed collection hole 4, after being filled with seeds, rotates along with the seed metering disc 2 and passes through the fixed seed guiding tube 1. Seeds 52 are scraped off at the seed scraping opening 54 and fall into the seed guiding tube 1, where they are immediately captured by the airflow and blown to the annular belt 3 for temporary storage. When the annular belt rotates to the seed insertion notch 56, the airflow pushes the seeds 52 out of the notch 56 and into the hole-forming teeth 6, thus placing them into the hole. This device allows for rapid and precise seed delivery.

[0016] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pneumatically assisted seed delivery device, characterized in that... It includes a seed guide tube (1) and an annular belt (3); one end of the seed guide tube (1) is used to connect to a positive pressure air source, and the other end is close to the annular belt (3). A seed scraping port (54) is provided in the middle of the seed guide tube (1); the annular belt (3) is fixed to the outer periphery of a seed tray (2), and multiple seeding notches (56) are provided on the annular belt (3). The seeding notches (56) are arranged in a circumferential array; the seed guide tube (1) is fixed inside the seeder cover (5), and the seed guide tube (1) forms an angle of 65°-75° with the horizontal direction; the air passage inside the seed guide tube (1) is wide-narrow-wide, and narrow at the seed scraping port (54) to accelerate the airflow, form a pressure difference, and make it easier to suck in seeds; the position of the seed scraping port (54) is set so that when the seed tray (2) rotates, the seed taking hole (4) on it can move sequentially to the seed scraping port (54).

Images