Novel double-disc air-suction type seed-metering device

Abstract

The utility model discloses a novel double-disc air-suction type seed-metering device which comprises a seed-metering device shell, a seed discharging baffle, a seed scraping spoon, a seed leaking opening, a scale plate, an adjusting plate, an air-suction chamber sealing gasket, a seed-metering disc and a transmission shaft, a bearing, a check ring and a bearing sleeve are connected to the seed-metering disc, the seed-metering disc is connected with the seed-metering device shell through the bearing, a seed placing baffle is connected to the seed-metering shell, a seed scraping spoon is connected to one side of an inner cavity of the seed-metering device shell and is in contact with the seed placing baffle, a scale plate is arranged on one side of the inner cavity of the seed-metering device shell, and the scale plate is in contact with the seed-metering baffle. An adjusting column is connected to the scale plate and used for adjusting the size of seeds, the bottom of the adjusting column is rotationally connected with the adjusting plate, the seed leaking opening is in through connection with the seed metering device shell, and the seed metering disc is connected with the transmission shaft. Compared with the prior art, the crop resistance adjusting device has the advantages that the crop resistance adjusting device can be conveniently adjusted, and crop resistance is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of agricultural sowing equipment, in particular to a novel double-disc air-suction type seeding device. Background Art

[0002] With the substantial increase in demand for soybeans and the decreasing planting area, increasing the yield per unit area is the fundamental way out for my country to develop soybean production. The production practice of advanced soybean producing countries in the world has proved that the high-yield cultivation technology of soybean narrow rows and dense planting has played an important role in increasing soybean yield. The air-suction seed metering device uses the negative pressure generated by the fan to adsorb the seeds on the seed suction holes of the seeding disc, and rotates with the seeding disc under the action of power. When it rotates to a certain position, the negative pressure disappears and the seeds fall. However, most of the air-suction seed metering devices are single-disc single-seedling air-suction seed metering devices at present, and the minimum row spacing between the two units is 23cm. The technology of the air-suction seed metering device with a single seed chamber and double discs is still immature, and the structure is complex, making adjustment and seed cleaning very difficult. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a device that can conveniently adjust and optimize the design of the seeding disc and control the operating speed and sowing accuracy of the machine.

[0004] In order to solve the above problems, the technical solution of the utility model is: a new double-disc air-suction type seeding device, including a seeding device housing, a seed placing baffle, a seed scraping spoon, a seed leakage port, a scale plate, an adjustment plate, an air suction chamber sealing pad, a seeding disk and a transmission shaft;

[0005] The seeding disc is connected with a bearing, a retaining ring and a bearing sleeve, and the seeding disc is connected to the seeding device housing through the bearing, and the seeding device housing is connected with a seed placing baffle, and a seed scraping spoon is connected to one side of the inner cavity of the seeding device housing, and the seed scraping spoon is in contact with the seed placing baffle, and a scale plate is provided on one side of the inner cavity of the seeding device housing, and an adjusting column is connected on the scale plate for adjusting the seed size, and the bottom of the adjusting column is rotatably connected to the adjusting plate, the seed leakage port is through-connected with the seeding device housing, and the seeding disc is connected to the transmission shaft.

[0006] Furthermore, a first fixing plate is connected to the upper part of the seed metering device housing for fixing.

[0007] Furthermore, the seeding disc is located at the bottom of the seeding device housing.

[0008] Furthermore, the air suction chamber sealing pad is located on the side wall of the inner cavity of the seed metering device shell.

[0009] Furthermore, there are two seed leakage ports, which are respectively located on two sides of the seed metering device housing.

[0010] Furthermore, second fixing plates are connected to both sides of the upper part of the seed metering device housing for fixing.

[0011] The advantages of the utility model compared with the existing technology are:

[0012] The utility model discloses a double-disc air-suction seed metering device that sows in a herringbone pattern, which can not only improve the yield and quality of crops, but also help save resources and protect the environment. The double-disc air-suction seed metering device is an efficient agricultural machine that can improve sowing efficiency and seed survival rate, and is of great significance for realizing agricultural modernization and intelligence. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a three-dimensional double-disc air suction type seed metering device. Figure 1 .

[0014] Figure 2 The utility model is a three-dimensional double-disc air suction type seed metering device. Figure 2 .

[0015] Figure 3 The utility model is a three-dimensional double-disc air suction type seed metering device. Figure 3 .

[0016] As shown in the figure: 1. Seeder housing; 2. Seed placing baffle; 3. First fixed plate; 4. Seed scraper; 5. Seed outlet; 6. Scale plate; 7. Adjustment column; 8. Adjustment plate; 9. Seed disc; 10. Second fixed plate; 11. Transmission shaft. DETAILED DESCRIPTION

[0017] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0018] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0019] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0020] like Figures 1 to 3As shown, a novel double-disc air-suction seed metering device comprises a seed metering device housing 1, a seed placing baffle 2, a seed scraping spoon 4, a seed leakage port 5, a scale plate 6, an adjustment plate 8, an air suction chamber sealing pad, a seed metering disk 9 and a transmission shaft 11; a first fixing plate 3 is connected to the top of the seed metering device housing 1 for fixing, a bearing, a retaining ring and a bearing sleeve are connected to the seed metering disk 9, the seed metering disk 9 is connected to the seed metering device housing 1 through a bearing, a seed placing baffle 2 is connected to the seed metering device housing 1, a seed scraping spoon 4 is connected to one side of the inner cavity of the seed metering device housing 1, and the seed scraping spoon 4 contacts the seed placing baffle 2 A scale plate 6 is provided on one side of the inner cavity of the seed metering device housing 1, and an adjusting column 7 is connected to the scale plate 6 for adjusting the seed size. The bottom of the adjusting column 7 is rotatably connected to the adjusting plate 8. The seed leakage port 5 is through-connected with the seed metering device housing 1. There are two seed leakage ports 5, which are respectively located on both sides of the seed metering device housing 1. The seeding disc 9 is connected to the transmission shaft 11, and the seeding disc 9 is located at the bottom of the seed metering device housing 1. The air suction chamber sealing pad is located on the side wall of the inner cavity of the seed metering device housing 1, and second fixing plates 10 are connected on both sides of the upper side of the seed metering device housing 1 for fixing.

[0021] In specific use, the functions of the main components of the double-disc air-suction seeding device are as follows: the seeding device housing is used to protect the entire seeding device and provide the space required for sowing; the scale plate 6 is used to display the sowing depth and spacing, which is convenient for farmers to adjust according to crop needs; the adjustment plate 8 is used to adjust the flow of seeds to ensure the uniformity of sowing; the air suction chamber sealing pad ensures the negative pressure in the vacuum chamber is stable and improves the seed suction effect; the scraper spoon smoothly delivers the seeds adsorbed on the seeding disk 9; the seeding baffle controls the seeding speed and direction; the seeding disk sows the seeds into the soil at a preset spacing and depth through high-speed rotation. The seed leakage port 5 removes excess seeds after sowing. The transmission shaft 11 is an important component for transmitting power in the seeding device, and the ground wheel transmits the generated power to the transmission shaft.

[0022] During the operation of the double-disc air-suction precision seeding device, the scale plate 6 and the adjustment plate 8 are first adjusted according to the crop requirements, and then the high-speed fan is started to generate negative pressure and transmit it to the vacuum chamber of the seeding unit. When the transmission shaft 11 drives the seeding disc 9 to rotate, the seeds are adsorbed under the negative pressure of the vacuum chamber and rotate with the seeding disc. When the seeds are rotated out of the vacuum chamber, the suction is interrupted and no longer bears the negative pressure. The seeds fall into the ditch evenly in a herringbone manner by their own weight or under the coordinated action of the seed scraping spoon and the seed placing baffle. During the whole process, the accuracy and stability of sowing are ensured by a precise control system. This seeding device has the advantages of high speed, precision, and uniform sowing, which can not only meet the precision sowing requirements of various crops. At the same time, it can sow in a herringbone manner, which improves the utilization rate and emergence rate of seeds. This device uses the suction between the double discs to absorb seeds, and sows the seeds into the soil according to the preset spacing and depth through a precise control system. Compared with the traditional manual sowing method, the double-disc air-suction seeding device not only improves the sowing efficiency, but also reduces the waste of seeds and labor costs.

[0023] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A new type of double-disc air-suction seed metering device, characterized by: The device comprises a seeding device housing (1), a seed placing baffle (2), a seed scraping spoon (4), a seed leaking port (5), a scale plate (6), an adjustment plate (8), an air suction chamber sealing pad, a seeding disc (9) and a transmission shaft (11); The seeding disc (9) is connected with a bearing, a retaining ring and a bearing sleeve. The seeding disc (9) is connected with the seeding device housing (1) through a bearing. The seeding device housing (1) is connected with a seed placing baffle (2). A seed scraping spoon (4) is connected to one side of the inner cavity of the seeding device housing (1). The seed scraping spoon (4) contacts the seed placing baffle (2). A scale plate (6) is provided on one side of the inner cavity of the seeding device housing (1). An adjustment column (7) is connected to the scale plate (6) for adjusting the seed size. The bottom of the adjustment column (7) is rotatably connected with the adjustment plate (8). The seed leakage port (5) is connected to the seeding device housing (1). The seeding disc (9) is connected with a transmission shaft (11).

2. A novel double-disc air-suction seed metering device according to claim 1, characterized in that: A first fixing plate (3) is connected to the upper part of the seed meter housing (1) for fixing.

3. A novel double-disc air-suction seed metering device according to claim 1, characterized in that: The seeding disc (9) is located at the bottom of the seeding device housing (1).

4. A novel double-disc air-suction seed metering device according to claim 1, characterized in that: The air suction chamber sealing pad is located on the inner cavity side wall of the seed meter housing (1).

5. The novel double-disc air-suction seed metering device according to claim 1 is characterized in that: There are two seed leakage ports (5), which are respectively located on two sides of the seed meter housing (1).

6. A novel double-disc air-suction seed metering device according to claim 1, characterized in that: Second fixing plates (10) are connected to both upper sides of the seed meter housing (1) for fixing.

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