CN206260254U - A kind of wheeled air-suction seed metering device - Google Patents

Abstract

The utility model discloses a wheel-type air suction seed metering device, which comprises a seed metering device bracket. A through hole is opened on the seed metering device bracket, and the tail end of the suction shaft tube passes through the through hole; A sprocket is installed at the end of the sprocket, and the sprocket is fixed on the suction shaft tube through the sprocket flange; a suction wheel is installed in front of the sprocket, and a high-sealed bearing is installed in the middle of the sprocket, and the suction wheel passes through the high-seal bearing and the suction The air shaft tube is connected, and the top of the suction wheel is provided with a suction wheel blocking cover; the front end of the suction shaft tube is equipped with an air blocking slider, and the air blocking slider is fixed on the suction shaft tube through the slider pin; the outer side of the suction wheel is clamped A seed hopper is connected, and a single-grain seed adjustment device is installed inside the seed hopper, and a long seed cleaning sheet is provided at the bottom of the seed hopper. The utility model has the advantages of simple structure, reasonable design, good sealing performance and small resistance during operation; it can arrange seeds in multiple rows, accurately arrange seeds, improve the germination rate of seeds, and is easy to use.

Description

A wheel type air suction seed metering device

technical field

The utility model relates to the technical field of seeders, in particular to a wheel-type air suction seed metering device.

Background technique

Seeder is a planting machine that takes crop seeds as the sowing object. The seeder used for a certain type or a certain crop is often named after the type of crop, such as grain drill, corn hole seeder, cotton seeder, pasture spreader, etc. The object planted by the seeder is the seed of the crop or the coated seed made into pellets. According to the sowing method, it can be divided into three categories: vacuum seed seeder, spreader, drill and hole sower. Various types of precision seeders developed in large quantities in the 1950s can precisely control the seeding rate, hole (plant) distance and sowing depth. The pneumatic seeding precision seeder developed in the 1970s, its seeding device (air suction type, air pressure type or air blowing type) uses positive pressure or negative pressure airflow to discharge a row of seeds at certain intervals to achieve single seed precision seeding, and Compared with the traditional mechanical seed metering device, it has the characteristics of accurate seeding rate and no damage to seeds. In addition, there is a mechanical precision metering device. It is a suspended 6-row row crop seeder with fertilization device, which can be used for row sowing and hole sowing of row crops such as soybean, corn and sorghum.

At present, the air-suction seeder is the most used. When the air-suction seeder is working, a high-speed fan generates negative pressure and transmits it to the vacuum chamber of the seeding unit. When the seeding disc rotates, it absorbs seeds under the negative pressure of the vacuum chamber and rotates together with the seeding disc. After the seeds turn out of the vacuum chamber, they no longer bear the negative pressure, and fall into the ditch by their own weight or under the action of the seed scraper. The main influencing factors of the air-suction seeder are the degree of vacuum, the shape of the suction hole, the size of the seed, and the structure and adjustment of the scraper.

The existing air-suction seeder has poor sealing performance, and seeds are easily missed, resulting in waste; the resistance is relatively large during operation, and energy is wasted. Seeding is not accurate enough, affecting the germination rate of seeds.

Utility model content

The purpose of this utility model is to provide a wheel-type air suction seed metering device to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A wheel-type air suction seed metering device, comprising a seed metering device bracket, a through hole is opened on the seed metering device bracket, and the tail end of the suction shaft tube passes through the through hole; a sprocket is installed at the tail end of the suction shaft tube , the sprocket is fixed on the suction shaft tube through the sprocket flange; a seed suction wheel is installed in front of the sprocket, and a high-seal bearing is installed in the middle of the suction wheel, and the suction wheel is connected to the suction shaft tube through a high-seal bearing. The top of the suction wheel is provided with a suction wheel blocking cover; the front end of the suction shaft tube is equipped with an air-blocking slider, and the air-blocking slider is fixed on the suction shaft tube through slider pins; There is a single-grain seed adjustment device inside the seed hopper, and a long seed cleaning sheet is installed at the bottom of the seed hopper.

As a further solution of the present invention: a round hole is opened at the front end of the suction shaft tube, and a hole with the same diameter as the round hole is also opened on the air blocking slider, and the slider pin passes through the round hole and the hole.

Compared with the prior art, the beneficial effects of the utility model are: the utility model has the advantages of simple structure, reasonable design, good sealing performance, and small resistance during operation; it can arrange seeds in multiple rows, accurately arrange seeds, improve the germination rate of seeds, and use Simple.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the structural explosion view of the utility model.

In the figure: 1- seed meter bracket, 2- sprocket, 3- suction shaft tube, 4- sprocket flange, 5- suction wheel, 6- high seal bearing, 7- air blocking slider, 8- Slider pin, 9-seed suction wheel blocking cover, 10-seed hopper, 11-single-grain seed adjustment device, 12-long seed cleaning sheet.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-2, a wheel-type air suction seed metering device, including a seed metering device bracket 1, a through hole is opened on the seed metering device bracket 1, and the tail end of the suction shaft tube 3 passes through the through hole; A sprocket 2 is installed at the tail end of the suction shaft tube 3, and the sprocket 2 is fixed on the suction shaft tube 3 through the sprocket flange 4; High-seal bearing 6, the suction wheel 5 is connected with the suction shaft tube 3 through the high-seal bearing 6, the top of the suction wheel 5 is provided with a suction wheel blocking cover 9; the front end of the suction shaft tube 3 is equipped with an air-blocking slider 7, The air blocking slider 7 is fixed on the suction shaft tube 3 through the slider pin 8, which has good sealing performance and prevents the seeds from leaking; the outside of the seed suction wheel 5 is clamped with a seed hopper 10, and the inside of the seed hopper 10 is provided with a single-grain regulator. Seed device 11, the bottom of seed hopper 10 is provided with elongated seed cleaning sheet 12, can remove the stuck seeds, and the resistance is small during operation. The seed suction wheel 5 is evenly opened with a plurality of small holes around it, and the seeds are sown through the small holes, so that the seeds are arranged accurately and the germination rate of the seeds is improved.

Further, a circular hole is provided at the front end of the suction shaft tube 3 of the utility model, and a hole with the same diameter as the circular hole is also provided on the air blocking slider 7, and the slider pin 8 passes through the circular hole and the hole. , fixed firmly.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (2)

1. A wheeled air suction seed metering device, comprising a seed metering device bracket, a through hole is provided on the seed metering device bracket, and the tail end of the suction shaft tube passes through the through hole; it is characterized in that: the suction shaft tube A sprocket is installed at the tail end, and the sprocket is fixed on the suction shaft tube through the sprocket flange; a suction wheel is installed in front of the sprocket, and a high-seal bearing is installed in the middle of the suction wheel. The suction shaft tube is connected, and the top of the suction wheel is provided with a suction wheel blocking cover; the front end of the suction shaft tube is equipped with an air-blocking slider, and the air-blocking slider is fixed on the suction shaft tube through the slider pin; the outer side of the suction wheel A seed hopper is clamped, and a single-grain seed adjustment device is installed inside the seed hopper, and a long seed cleaning sheet is provided at the bottom of the seed hopper. 2. The wheel-type air suction seed metering device according to claim 1, characterized in that: the front end of the suction shaft tube is provided with a round hole, and the air blocking slider is also provided with a hole with the same aperture as the round hole, The slider pins pass through the circular holes and holes.