Corn seeding wheel

Abstract

The utility model discloses a corn seeding wheel, which relates to the field of agricultural equipment, and comprises a seeding wheel and an air cavity which rotate coaxially, a plurality of corn grooves are arranged on the seeding wheel, air suction holes are arranged at the bottoms of the corn grooves, a plurality of air inlet holes are arranged on the side wall of the air cavity, the air inlet holes are communicated with the air suction holes, and the air suction holes are communicated with the air suction holes. The air cavity is communicated with an air inlet pipe of an air pump, and a plurality of blocking balls used for blocking the air inlet holes are arranged in the air cavity. The problems that the suction force of other air suction ports is greatly reduced due to the fact that the existing air suction type corn planter does not adsorb the air suction ports of the corn seeds, and the corn seeds fall off due to insufficient suction force are solved.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a corn seeding wheel. Background Art

[0002] A seeder is a planting machine that sows crop seeds. It is a seeder used for a certain type or crop, and is often named after the crop type, such as a corn seeder. Existing corn seeders include air-suction corn seeders, which absorb corn seeds through air pressure, transport the corn seeds to the top of the sowing pipe through a sowing wheel, and then separate the corn seeds from the air flow and fall down along the sowing pipe to the sowing point for sowing. Since the size of the air suction port can be controlled, the air-suction corn seeder can accurately absorb a certain number of corn seeds and has the advantage of quantitative sowing.

[0003] However, after the corn seeds leave the sowing wheel, the air ports that do not absorb the corn seeds inhale a large amount of gas, causing the suction force of the remaining air intake ports connected to it to drop significantly, resulting in insufficient suction and causing the corn seeds to fall, thereby causing uneven sowing. Utility Model Content

[0004] The utility model provides a corn seeding wheel to solve the problem that the existing air suction type corn seeding machine has an air inlet without corn seeds adsorbed, which causes the suction force of other air suction inlets to drop significantly, resulting in insufficient suction force and causing corn seeds to fall.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] A corn seeding wheel comprises a coaxially rotating seeding wheel and an air cavity, wherein the seeding wheel is provided with a plurality of corn troughs, the bottom of the corn troughs is provided with air suction holes, the side wall of the air cavity is provided with a plurality of air inlet holes, the air inlet holes are connected with the air suction holes, the air cavity is connected with an air inlet pipe of an air pump, and the air cavity is provided with a plurality of blocking balls for blocking the air inlet holes.

[0007] The sowing method of the air suction corn seeder in the utility model is as follows: the sowing wheel rotates, and a part of it passes through the seed box storing corn seeds, and the air suction holes absorb the corn seeds and rise with the rotation of the sowing wheel, and then pass through the blocking member to separate the absorbed corn seeds from the air suction holes, and fall into the ground to complete the sowing; the air suction holes from which the corn seeds are separated lack the blocking and are connected to the outside, resulting in a reduction in the suction force of the remaining air suction holes;

[0008] The utility model arranges an air cavity on the air source main pipe of the air suction corn seeder, and utilizes the gravity of a blocking ball to block the air suction holes that are located below the seeding wheel and have no corn seeds adsorbed thereon, thereby avoiding or reducing the air suction holes that have no corn seeds adsorbed thereon from being connected to the outside, causing the air pressure provided by the air pump to be lost from the air suction holes that have no corn seeds adsorbed thereon, thereby reducing the suction force of the air suction holes that have adsorbed the corn seeds, causing the corn seeds to fall off prematurely, and ensuring the uniformity of corn seed sowing.

[0009] Furthermore, a plurality of arc-shaped grooves are provided on the side wall of the air cavity, the air inlet holes are provided at the bottom of the arc-shaped grooves, and the blocking balls match the arc-shaped grooves.

[0010] By matching the arc-shaped groove with the blocking ball to block the air inlet, the air suction hole without corn seeds adsorbed can be prevented from communicating with the outside, reducing air pressure loss. In addition, the arc-shaped groove can also facilitate the positioning of the blocking ball, so that the blocking ball can better block the air inlet.

[0011] Furthermore, the arc-shaped grooves are evenly distributed in a ring shape around the rotating shaft of the seeding wheel.

[0012] Furthermore, the arc-shaped grooves correspond one to one with the air inlet holes.

[0013] Furthermore, the air inlet holes correspond one to one with the air suction holes.

[0014] Furthermore, the width of the air cavity is greater than or equal to the diameter of the blocking ball and less than twice the diameter of the blocking ball, so as to avoid the situation that two or more blocking balls are stuck when arranged along the width of the air cavity and cannot fall into the arc groove.

[0015] Furthermore, the diameter of the air suction hole is less than 5 mm. Corn seeds are 8 mm to 17 mm long and 5 mm to 9 mm wide. Therefore, the diameter of the air suction hole is less than 5 mm, which can prevent the corn seeds from being sucked into the air suction hole and causing blockage, and the adsorption area of ​​the air suction hole can only adsorb one corn seed, thereby achieving the purpose of quantitative sowing.

[0016] Furthermore, the corn troughs are evenly distributed in a ring around the rotating shaft of the seeding wheel. The spacing between two adjacent corn troughs affects the spacing of corn seed sowing, and evenly distributed corn troughs can achieve equal spacing of corn seeds sowing.

[0017] Furthermore, the width of the corn trough is greater than or equal to 17 mm and less than 34 mm. The corn seed is 8 mm to 17 mm long and 5 mm to 9 mm wide. The size design of the corn trough can further ensure that only one corn seed is adsorbed into the corn trough by the air suction hole, thereby achieving the purpose of quantitative sowing.

[0018] Furthermore, a plurality of limiting members are provided on one side of the seeding wheel, and the limiting members are located at the upper end and / or the lower end of the moving path of the air suction hole.

[0019] Since corn seeds are relatively thin, there is a problem that two or more corn seeds stand upright and are adsorbed together. The limiting piece is used to move them so that one of the corn seeds falls, or the upright corn seeds are moved to a lying state to prevent other corn seeds from continuing to be adsorbed, thereby achieving the purpose of quantitative sowing.

[0020] One or more technical solutions provided by the utility model have at least the following technical effects or advantages:

[0021] (1) The utility model sets an air cavity on the air source main pipe of the air suction corn seeder, and uses the gravity of the blocking ball to block the air suction holes located below the seeding wheel and without corn seeds adsorbed thereon, thereby avoiding or reducing the air suction holes without corn seeds adsorbed thereon from being connected to the outside, causing the air pressure provided by the air pump to be lost from the air suction holes without corn seeds adsorbed thereon, thereby reducing the suction force of the air suction holes adsorbing corn seeds, causing the corn seeds to fall off prematurely, and ensuring the uniformity of corn seed sowing;

[0022] (2) By matching the arc-shaped groove with the blocking ball to block the air inlet, the air suction hole without corn seeds adsorbed can be prevented from communicating with the outside, thereby reducing air pressure loss. In addition, the arc-shaped groove can also facilitate the positioning of the blocking ball, so that the blocking ball can better block the air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of the present utility model, and do not constitute a limitation on the embodiments of the present utility model;

[0024] Figure 1 This is a sectional view of the seeding wheel structure in the utility model;

[0025] Figure 2 It is a cross-sectional view of the air cavity of the seeding wheel in the utility model;

[0026] Figure 3 This is a front view of the seeding wheel structure in the utility model;

[0027] Among them, 1-seeding wheel, 2-air cavity, 3-corn trough, 4-air suction hole, 5-air inlet hole, 6-air inlet pipe, 7-blocking ball, 8-arc groove, 9-limiting piece. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those within the scope of this description. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0030] Example 1

[0031] This embodiment provides a corn seeding wheel, such as Figure 1-Figure 3 As shown, it includes a coaxially rotating seeding wheel 1 and an air cavity 2, the seeding wheel 1 is provided with a plurality of corn troughs 3, the bottom of the corn trough 3 is provided with an air suction hole 4, the side wall of the air cavity 2 is provided with a plurality of air inlet holes 5, the air inlet holes 5 are connected with the air suction holes 4, the air cavity 2 is connected with an air inlet pipe 6 of an air pump, and the air cavity 2 is provided with a plurality of blocking balls 7 for blocking the air inlet holes 5.

[0032] The number of corn troughs 3 is determined according to the diameter of the seeding wheel 1 and the seeding interval required by the user. Preferably, the corn troughs 3 are evenly distributed in a ring around the rotating shaft of the seeding wheel 1; each corn trough 3 is provided with an air suction hole 4 at the bottom, and the air inlet holes 5 are evenly distributed in a ring around the rotating shaft of the seeding wheel 1. Preferably, the air inlet holes 5 are equal in number to the air suction holes 4 and correspond one to one; the air inlet holes 5 and the air suction holes 4 can be connected in a way that an external pipe or a ventilation pipe is opened in the seeding wheel 1. Since the air cavity 2 rotates with the seeding wheel 1, and the air pump can provide suction for multiple air cavities 2, it is preferred to set the connecting pipe between the air cavity 2 and the air inlet pipe 6 of the air pump in the rotating shaft of the seeding wheel 1, and a dynamic seal is used to prevent air leakage where rotation is required;

[0033] In the present scheme, a part of the seeding wheel 1 passes through the seed box for storing corn seeds, and the air suction holes 4 absorb the corn seeds and rise as the seeding wheel 1 rotates, and then passes through the blocking member to strip the absorbed corn seeds from the air suction holes 4 and fall into the soil to complete the seeding. Therefore, there is no obstruction before the air suction holes 4 that strip the corn seeds re-absorb the corn seeds. Therefore, it is preferred that the air suction holes 4 that strip the corn seeds are arranged at the lower half of the seeding wheel 1 to facilitate the blocking by the blocking balls 7; the number of blocking balls 7 is determined according to the size of the air cavity 2, that is, the blocking balls 7 can block the air inlet holes 5 in the lower half of the air cavity 2, and after the air cavity 2 rotates, the blocking balls 7 that block the air inlet holes 5 rotated to the upper half of the air cavity 2 fall, and the air inlet holes 5 rotated to the lower half of the air cavity 2 are blocked by the blocking balls 7 that roll down, and preferably, the volume of the stacked blocking balls 7 roughly fills half of the space of the air cavity 2, and the weight of the blocking balls 7 is greater than the weight of the corn seeds, and will not be absorbed by the suction force at the air suction holes 4, and the weight of the blocking balls 7 can be adjusted according to the suction force at the air suction holes 4.

[0034] In a more preferred embodiment, a plurality of arc-shaped grooves 8 are provided on the side wall of the air cavity 2 , the air inlet 5 is provided at the bottom of the arc-shaped groove 8 , and the blocking ball 7 matches the arc-shaped groove 8 .

[0035] Among them, the number of arc-shaped grooves 8 is equal to and corresponds to the air inlet holes 5, the shape of the arc-shaped grooves 8 is a part of a sphere, the depth of the arc-shaped grooves 8 is less than a hemisphere, which is convenient for the blocking ball 7 to enter and exit, and the diameter of the arc-shaped grooves 8 is equal to the diameter of the blocking ball 7. Preferably, the arc-shaped grooves 8 are evenly distributed in a ring around the rotating axis of the seeding wheel 1.

[0036] In a more preferred embodiment, the width of the air cavity 2 is greater than or equal to the diameter of the blocking ball 7 , and less than twice the diameter of the blocking ball 7 .

[0037] In a more preferred embodiment, the diameter of the air suction hole 4 is less than 5 mm.

[0038] In a more preferred embodiment, the width of the corn trough 3 is greater than or equal to 17 mm and less than 34 mm. The general size of corn seeds is: 8 mm-17 mm in length and 5 mm-9 mm in width. The user can change the diameter of the air suction hole 4 and the width of the corn trough 3 according to the size of the corn seeds to be sown.

[0039] In a more preferred embodiment, a plurality of limiting members 9 are provided on one side of the seeding wheel 1 , and the limiting members 9 are located at the upper end and / or the lower end of the moving path of the air suction hole 4 .

[0040] Preferably, two limiting members 9 are provided, which are respectively provided at the upper end and the lower end of the moving path of the air suction hole 4 .

[0041] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0042] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A corn seeding wheel, characterized in that: The invention comprises a coaxially rotating seeding wheel (1) and an air cavity (2), wherein the seeding wheel (1) is provided with a plurality of corn troughs (3), the bottom of the corn troughs (3) is provided with an air suction hole (4), the side wall of the air cavity (2) is provided with a plurality of air inlet holes (5), the air inlet holes (5) are connected with the air suction holes (4), the air cavity (2) is connected with an air inlet pipe (6) of an air pump, and a plurality of blocking balls (7) for blocking the air inlet holes (5) are provided in the air cavity (2).

2. A corn seeding wheel according to claim 1, characterized in that: A plurality of arc-shaped grooves (8) are provided on the side wall of the air cavity (2), the air inlet hole (5) is provided at the bottom of the arc-shaped groove (8), and the blocking ball (7) matches the arc-shaped groove (8).

3. A corn seeding wheel according to claim 2, characterized in that: The arc-shaped grooves (8) are evenly distributed in a ring shape around the rotating axis of the seeding wheel (1).

4. A corn seeding wheel according to claim 2, characterized in that: The arc-shaped grooves (8) correspond one to one with the air inlet holes (5).

5. A corn seeding wheel according to claim 1, characterized in that: The air inlet holes (5) correspond one to one with the air suction holes (4).

6. A corn seeding wheel according to claim 1, characterized in that: The width of the air cavity (2) is greater than or equal to the diameter of the blocking ball (7), and less than twice the diameter of the blocking ball (7).

7. A corn seeding wheel according to claim 1, characterized in that: The diameter of the air suction hole (4) is less than 5 mm.

8. The corn seeding wheel according to claim 1, characterized in that: The corn troughs (3) are evenly distributed in a ring shape around the rotating shaft of the seeding wheel (1).

9. The corn seeding wheel according to claim 1, characterized in that: The width of the corn trough (3) is greater than or equal to 17 mm and less than 34 mm.

10. The corn seeding wheel according to claim 1, characterized in that: A plurality of limiting members (9) are provided on one side of the seeding wheel (1), and the limiting members (9) are located at the upper end and / or the lower end of the moving path of the air suction hole (4).

Images