CN212278811U

CN212278811U - High-speed airflow seed guiding device

Info

Publication number: CN212278811U
Application number: CN202020982604.1U
Authority: CN
Inventors: 桑广森
Original assignee: Tianjin Dongfang Taiyangsheng Agricultural Machinery Equipment Co ltd
Current assignee: Tianjin Dongfang Taiyangsheng Agricultural Machinery Equipment Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-01-05
Anticipated expiration: 2030-06-02

Abstract

The utility model discloses a high-speed airflow seed guiding device, which comprises an electric fan and a seed sowing device; a seed sowing chamber and an air chamber which are both closed are arranged in the seed sowing device; an exhaust pipe is communicated with the air chamber; a seed inlet pipe is communicated with one side of the seed discharging chamber; the other side of the seed discharging chamber is communicated with a vertical high-speed airflow pipe; a vertical seed guide pipe is arranged below the high-speed airflow pipe, and the bottom end of the seed guide pipe extends out of the seed discharge chamber and is bent towards one side; the electric fan is provided with an air inlet and an air outlet; the air exhaust pipe is communicated to the air inlet through a first connecting pipe; the high-speed airflow pipe is communicated to the air outlet through a second connecting pipe. The utility model discloses a high-speed air current seed guiding device does not receive the high influence of throwing kind of a mouthful, and the seed metering is accurate quick, even.

Description

High-speed airflow seed guiding device

Technical Field

The utility model relates to an agricultural machinery technical field especially relates to a high velocity air leads kind of device.

Background

The seed throwing height (the distance from the seed throwing port to the bottom surface of the seed ditch) of the existing seeder has great influence on the distribution of seeds falling into the seed ditch. Because of the limitation of the structure of a machine working part or the working principle of the seed metering device, the seed feeding height can not be reduced very low, and particularly, the distance from a seed feeding port of the seed metering device to the bottom of a ditch is at least 450mm for the precise seeding of a single double-disc furrow opener of a large-scale machine tool. After the seeds uniformly discharged from the seed feeding port pass through the distance, the uniform distance for seed sowing at the initial stage of the seeds is broken due to the influence of falling and collision of the seeds. The larger the seed throwing height is, the longer the distance the seeds travel, the greater the interference is, and the more the inaccurate the falling point of the seeds is easily caused.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a high-speed airflow seed guiding device which is not affected by the height of the seed feeding port and can accurately, rapidly and uniformly feed seeds.

The utility model provides a high-speed airflow seed guiding device, which comprises an electric fan and a seed sowing device; a seed sowing chamber and an air chamber which are both closed are arranged in the seed sowing device; an exhaust pipe is communicated with the air chamber; a seed inlet pipe is communicated with one side of the seed discharging chamber; the other side of the seed discharging chamber is communicated with a vertical high-speed airflow pipe; a vertical seed guide pipe is arranged below the high-speed airflow pipe, and the bottom end of the seed guide pipe extends out of the seed discharge chamber and is bent towards one side; the electric fan is provided with an air inlet and an air outlet; the air exhaust pipe is communicated to the air inlet through a first connecting pipe; the high-speed airflow pipe is communicated to the air outlet through a second connecting pipe.

Preferably, the seed metering ware includes the casing, be provided with the seed metering dish in the casing, be provided with the sealing washer between seed metering dish's edge and the casing, seed metering room set up in one side of seed metering dish, the air chamber set up in seed metering dish's opposite side, seed metering dish sets up along vertical direction slope, seed metering dish's top to seed metering room's one side slope sets up, seed metering dish is last to be close to the edge and evenly is provided with a plurality of seed suction holes along the hoop, the outside of casing is provided with the drive seed metering dish pivoted motor, correspond in the air chamber the neutral between high-speed air flow pipe and the seed guide is provided with the hole sealing wheel, seed suction hole and hole sealing wheel distance seed metering dish center is the same.

Preferably, one side of the bottom end of the seed guiding pipe in the bending direction is provided with a seed pressing wheel for pressing seeds into the seed ditch.

Preferably, the seed guiding pipe is provided with a seed monitoring device for monitoring the seed guiding state.

Preferably, the included angle between the seed discharging disc and the vertical direction is 8-15 degrees.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a seed device is led to high velocity air current is provided with high velocity air current pipe and seed guide, and high velocity air current pipe links to each other with electric fan, sends into the seed metering room with high velocity air current in, and other positions in seed metering room are inclosed, and high velocity air current flows out from the seed guide, and the seed that falls down on the seed metering dish is along with high velocity air current discharges from the play seed mouth of seed guide bottom, is pressed young wheel and is pressed into the kind ditch in, accomplishes the seeding.

When the distance between the seed feeding port of the seed guide tube and the ground is 0.45-1m, the discharge time of the seeds along with the high-speed airflow is 0.1-0.2s, for sowing, the falling time can be ignored, namely the seeds are discharged instantly after falling into the seed guide tube, and the length of the seed guide tube almost does not influence the falling time of the seeds. Solves the problem of uneven falling of seeds, improves the seeding speed and ensures even and accurate seeding.

It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a schematic structural view of a high-speed air flow seed guide device;

FIG. 2 is a schematic view of the internal structure of the high-speed air flow seed guide device;

FIG. 3 is a rear view of the high-speed air flow seed-guiding device;

fig. 4 is a side view of the seed guiding tube.

Reference numbers in the figures: 1. a seed sowing device; 2. an air exhaust pipe; 3. feeding a seed pipe; 4. a high-speed airflow pipe; 5. a seed guiding pipe; 6. pressing a small wheel; 7. a seed monitoring device;

11. a housing; 12. a seed discharging tray; 13. a seal ring; 14. a seed suction hole; 15. an electric motor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 4, an embodiment of the present invention provides a high-speed airflow seed guiding device, which includes an electric fan and a seed sowing device 1; a seed sowing chamber and an air chamber which are both closed are arranged in the seed sowing device 1; the air chamber is communicated with an exhaust pipe 2; a seed inlet pipe 3 is communicated with one side of the seed discharging chamber; the other side of the seed discharging chamber is communicated with a vertical high-speed airflow pipe 4; a vertical seed guide pipe 5 is arranged below the high-speed airflow pipe 4, and the bottom end of the seed guide pipe 5 extends out of the seed discharge chamber and is bent towards one side; the electric fan is provided with an air inlet and an air outlet; the air exhaust pipe 2 is communicated to the air inlet through a first connecting pipe; the high-speed airflow pipe 4 is communicated to the air outlet through a second connecting pipe.

In this embodiment, electric fan's air intake and air chamber intercommunication make the air chamber form the negative pressure through bleeding, adsorb the seed. The air outlet of the electric fan is communicated with the high-speed airflow pipe 4, and the high-speed airflow is sent into the seed sowing chamber and discharged through the seed guide pipe 5 to form high-speed airflow in the seed guide pipe 5. The seeds falling from the seeding apparatus 1 are instantaneously discharged through the seed guide pipe 5 along with the high-speed airflow.

The length of the seed guide 5 is generally not more than 1 m. When the distance between the seed feeding port of the seed guide pipe 5 and the ground is 0.45-1m, the discharge time of the seeds along with the high-speed airflow is 0.1-0.2s, for sowing, the falling time can be ignored, namely the seeds are discharged instantly after falling into the seed guide pipe 5, and the falling time of the seeds is hardly influenced by the length of the seed guide pipe 5. The efficiency of the seeding operation is improved, the seed metering is even and accurate, and the seeding quality is ensured.

The seed feeding pipe 3 is arranged in the seed discharging chamber in a communicating way, the seed feeding pipe 3 is communicated with the seed box, and the seed box continuously inputs seeds into the seed discharging chamber through the seed feeding pipe 3 for seeding.

The electric fan may be mounted to the main beam of the planter or provided in the tractor. The electric fan is powered by the storage battery arranged on the tractor and is not connected with the tractor motor in a transmission way, so that the influence on the output power of the electric fan due to the change of the rotating speed of the tractor motor is avoided. The negative pressure in the air chamber of the seeding unit 1 and the high-speed airflow in the seed guide pipe 5 are always in a stable state, and the seeding uniformity is ensured.

In a preferred embodiment, as shown in fig. 1 to 4, the seed sowing device 1 includes a housing 11, a seed sowing plate 12 is arranged in the housing 11, a sealing ring 13 is arranged between the edge of the seed sowing plate 12 and the housing 11, a seed sowing chamber is arranged at one side of the seed sowing plate 12, an air chamber is arranged at the other side of the seed sowing plate 12, the seed sowing plate 12 is arranged obliquely along the vertical direction, the top end of the seed sowing plate 12 is arranged obliquely towards one side of the seed sowing chamber, a plurality of seed suction holes 14 are uniformly arranged on the seed sowing plate 12 near the edge along the circumferential direction, a motor 15 for driving the seed sowing plate 12 to rotate is arranged at the outer side of the housing 11, a hole sealing wheel is arranged in the air chamber corresponding to a gap between the high-speed airflow pipe 4 and the seed guide.

In this embodiment, the seed plate 12 divides the interior of the seed meter 1 into a seed chamber and an air chamber. When sowing, the electric fan pumps the air chamber into a negative pressure state, seeds entering the seed discharging chamber from the seed inlet pipe 3 are adsorbed on the seed suction hole 14, when the seeds rotate to the neutral position between the high-speed airflow pipe 4 and the seed guide pipe 5 along with the seed discharging disc 12, the hole sealing wheel in the air chamber blocks the seed suction hole 14, the adsorption force disappears, and the seeds fall down. Since the seed discharge plate 12 is disposed obliquely, the dropped seeds just enter the seed guide 5. One of these feeds the seeds adsorbed on the seed discharging plate 12 into the seed guide 5 for sowing. Uniform seed sowing and high accuracy.

In a preferred embodiment, as shown in fig. 1, the bottom end of the seed introduction tube 5 is provided with a seed pressing wheel 6 at one side of the bending direction thereof for pressing the seeds into the seed furrow. The play mouth of seed guide 5 bottom is pressed young wheel 6 and the tangent department setting of kind ditch towards, and the soil of kind ditch is directly impressed by pressing young wheel 6 to the exhaust seed, avoids the seed to beat in kind ditch, causes the uneven problem of seeding.

In a preferred embodiment, as shown in fig. 1, the seed guide tube 5 is provided with a seed monitoring device 7 for monitoring the seed guiding state. The seed monitoring device 7 may be an infrared monitoring device or an ultrasonic monitoring device. For monitoring whether the seeds normally pass. In the seeding process, when no seed passes through the seed guide pipe 5, an indicator lamp connected with the seed monitoring device 7 is turned on, or a buzzer gives an alarm to remind a driver that the seed box is empty, even if the seed is replenished.

In a preferred embodiment, as shown in FIG. 4, the seed plate 12 is angled 8-15 degrees from vertical. So that the seeds falling from the seed plate 12 can accurately enter the seed guide pipe 5. The top of the seed guiding pipe 5 can be arranged to be flared, so that the success rate of receiving seeds is improved.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-speed airflow seed guide device is characterized by comprising an electric fan and a seed sowing device; a seed sowing chamber and an air chamber which are both closed are arranged in the seed sowing device; an exhaust pipe is communicated with the air chamber; a seed inlet pipe is communicated with one side of the seed discharging chamber; the other side of the seed discharging chamber is communicated with a vertical high-speed airflow pipe; a vertical seed guide pipe is arranged below the high-speed airflow pipe, and the bottom end of the seed guide pipe extends out of the seed discharge chamber and is bent towards one side; the electric fan is provided with an air inlet and an air outlet; the air exhaust pipe is communicated to the air inlet through a first connecting pipe; the high-speed airflow pipe is communicated to the air outlet through a second connecting pipe.

2. The high-speed airflow seed guide device according to claim 1, wherein the seed sowing device comprises a housing, a seed sowing plate is arranged in the housing, a sealing ring is arranged between the edge of the seed sowing plate and the housing, the seed sowing plate is arranged on one side of the seed sowing plate, the air chamber is arranged on the other side of the seed sowing plate, the seed sowing plate is arranged obliquely along a vertical direction, the top end of the seed sowing plate is arranged obliquely towards one side of the seed sowing plate, a plurality of seed suction holes are uniformly arranged on the seed sowing plate in a circumferential direction near the edge, a motor for driving the seed sowing plate to rotate is arranged on the outer side of the housing, a hole sealing wheel is arranged in the air chamber corresponding to a neutral position between the high-speed airflow pipe and the seed guide pipe, and the distance between the seed suction holes and the hole sealing wheel and.

3. The high-speed airflow seed guiding device as claimed in claim 2, wherein the bottom end of the seed guiding pipe is provided with a seed pressing wheel at one side of the bending direction of the seed guiding pipe for pressing seeds into the seed groove.

4. The high-speed airflow seed guiding device according to claim 3, wherein a seed monitoring device is arranged on the seed guiding pipe for monitoring the seed guiding state.

5. The high-speed airflow seed guide device according to claim 4, wherein the included angle between the seed discharging disc and the vertical direction is 8-15 degrees.