Anti-blocking seed-metering wheel for seeder

Abstract

The anti-blocking seed-metering wheel comprises a wheel shaft, a seed-metering ring and an impact column, the seed-metering ring is concentrically arranged on the wheel shaft, an annular cavity is reserved between the inner wall of the seed-metering ring and the outer circle of the wheel shaft, seed storage holes are formed in the seed-metering ring at intervals, and the impact column is arranged in the annular cavity. The impact columns are arranged in the annular cavity and are in one-to-one correspondence with the seed storage holes, the front ends of the impact columns extend into the corresponding seed storage holes respectively, and limiting discs are arranged at the tail ends of the impact columns respectively. According to the anti-blocking seed-metering wheel for the seeder, the impact column reciprocates in the seed storage holes along with the rotation of the seed-metering ring, and seeds in the seed storage holes are actively pushed out by utilizing the impact force generated when the impact column falls down, so that the problem that the seeds are blocked in the seed storage holes is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to an anti-blocking seed wheel for a seeder. Background Art

[0002] The core component of the seeder is the seed wheel, which is usually designed with seed holes. During the rotation of the seed wheel, the seed holes first rotate to the top to receive seeds from the hopper, and then rotate to the bottom to drop the seeds for sowing.

[0003] Since the sowing amount is usually fixed, with single or several seeds sown each time, the volume of the seed chamber is very small. During the rotation process, the seeds may get stuck in the seed chamber, resulting in missed seeds, which affects the yield of the farmland and needs to be improved. Utility Model Content

[0004] The utility model aims to provide an anti-blocking seeding wheel for a seeder, which can carry out orderly seeding and avoid the problem of blockage and missed seeding.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A blockage-proof seed wheel for a seeder comprises: a wheel axle, a seed ring and an impact column, wherein the seed ring is concentrically arranged on the wheel axle, an annular cavity is left between the inner wall of the seed ring and the outer circle of the wheel axle, seed storage holes are arranged at intervals on the seed ring, the impact columns are arranged in the annular cavity and correspond to the seed storage holes one by one, and the front ends of the impact columns extend into the corresponding seed storage holes respectively, and the tail ends of the impact columns are respectively provided with limit disks.

[0007] Among them, a flange is arranged at one end of the seed discharging ring, and a positioning sleeve which is sleeved on the wheel axle is arranged on the flange.

[0008] Wherein, the flange is provided with a first screw connected to the end of the seeding ring, and the positioning sleeve is provided with a second screw pointing to the wheel axle.

[0009] Wherein, the diameter of the limiting disk is larger than the diameter of the seed storage hole.

[0010] Among them, the front end of the impact column is concavely provided with an arc groove, and the diameter of the impact column is not larger than the diameter of the seed storage hole.

[0011] Wherein, a buffer pad is sleeved on the impact column.

[0012] Wherein, a buffer sleeve located inside the seeding ring is arranged on the wheel axle.

[0013] The beneficial effects of the utility model include: an anti-blocking seeding wheel for a seeder, which drives the rotation of the seeding circle through the wheel axle, and the seed storage hole receives seeds from the upper hopper for temporary storage when the seed storage hole rotates to the top with the seeding circle, and the seeds fall and are sown when the seed storage hole rotates to the bottom, and the impact column reciprocates in the seed storage hole with the rotation of the seeding circle, and the impact force of the impact column when it falls is used to actively push out the seeds in the seed storage hole, thereby avoiding the seeds from getting stuck and blocked in the seed storage hole and reducing the problem of missed seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 yes Figure 1 AA section view. DETAILED DESCRIPTION

[0016] Combine the following Figure 1-2 The technical solution of the utility model is further illustrated by specific embodiments.

[0017] like Figure 1 The anti-blocking seeding wheel for a seeder shown in the figure comprises: a wheel shaft 1, a seeding ring 2 and an impact column 3, wherein the seeding ring 2 is concentrically arranged on the wheel shaft 1, and an annular cavity 13 is left between the inner wall of the seeding ring 2 and the outer circle of the wheel shaft 1. In this embodiment, a flange 8 is arranged at one end of the seeding ring 2, and a positioning sleeve 10 is arranged on the flange 8 and sleeved on the wheel shaft 1, which is convenient for assembly.

[0018] The flange 8 is provided with a first screw 9 connected to the end of the seed ring 2, and the positioning sleeve 10 is provided with a second screw 11 pointing to the wheel axle 1, so as to position the positioning sleeve 10 on the wheel axle 1 and facilitate adjustment so that the seed ring 2 can rotate synchronously with the wheel axle 1.

[0019] like Figure 2 As shown, seed storage holes 7 are arranged at intervals on the seeding circle 2. When the seeding circle 2 rotates to the top, the seed storage holes 7 receive seeds from the hopper of the upper seeder to temporarily store the seeds. When the seed storage holes 7 rotate to the bottom of the seeding circle 2, the seeds are dropped and sown.

[0020] The impact column 3 is arranged in the annular cavity 13 and corresponds to the seed storage holes 7 one by one, and the front end of the impact column 3 extends to the corresponding seed storage holes 7 respectively. Figure 2 As shown, four seed storage holes 7 and impact columns 3 are used to discharge seeds in sequence. The impact column 3 reciprocates in the seed storage hole 7 as the seed discharging ring 2 rotates, and the impact force of the impact column 3 when it falls is used to actively push out the seeds in the seed storage hole 7, thereby avoiding the seeds from being stuck in the seed storage hole 7 and reducing the problem of missed seeding.

[0021] In this embodiment, the diameter of the impact column 3 is not greater than the diameter of the seed storage hole 7, ensuring the flexibility of the impact column 3 to reciprocate in the seed storage hole 7. In order to prevent the impact column 3 from flying out of the seed storage hole 7, a limiting plate 5 is provided at the tail end of the impact column 3. In this embodiment, the diameter of the limiting plate 5 is greater than the diameter of the seed storage hole 7 to limit the outward movement of the impact column 3. The impact column 3 and the limiting plate 5 can adopt an integrated steel structure with high strength.

[0022] An arc groove 12 is concavely provided at the front end of the impact column 3. The arc groove 12 is utilized to expand the effective volume in the seed storage hole 7 without affecting the downward push of the seeds by the impact column 3. The single seed storage amount of the seed storage hole 7 can be adjusted by replacing the impact column 3 with arc grooves of different sizes.

[0023] In order to reduce the noise of the reciprocating motion of the impact column 3, a buffer pad 4 is sleeved on the impact column 3. The buffer pad 4 is an annular rubber pad, which is easy to assemble and avoids the contact between the limit plate 5 and the inner wall of the seeding ring 2. In addition, a buffer sleeve 6 is provided on the axle 1 and is located inside the seeding ring 2. The buffer sleeve 6 can be a rubber pad to avoid the contact between the limit plate 5 and the axle 1, reducing impact damage and noise problems.

[0024] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A blocking-proof seed wheel for a seeder, characterized in that: include: A wheel axle, a seeding ring and an impact column, wherein the seeding ring is concentrically arranged on the wheel axle, an annular cavity is left between the inner wall of the seeding ring and the outer circle of the wheel axle, seed storage holes are arranged at intervals on the seeding ring, the impact columns are arranged in the annular cavity and correspond to the seed storage holes one by one, and the front ends of the impact columns extend to the corresponding seed storage holes respectively, and the tail ends of the impact columns are respectively provided with limit disks.

2. The anti-blocking seed wheel for a seeder according to claim 1, characterized in that: A flange is arranged at one end of the seed discharging ring, and a positioning sleeve which is sleeved on the wheel axle is arranged on the flange.

3. The anti-blocking seed wheel for a seeder according to claim 2, characterized in that: The flange is provided with a first screw connected to the end of the seeding ring, and the positioning sleeve is provided with a second screw pointing to the wheel axle.

4. The anti-blocking seed wheel for a seeder according to claim 1, characterized in that: The diameter of the limiting disk is greater than the diameter of the seed storage hole.

5. The anti-blocking seed wheel for a seeder according to claim 1, characterized in that: The front end of the impact column is concavely provided with an arc groove, and the diameter of the impact column is not greater than the diameter of the seed storage hole.

6. The anti-blocking seed wheel for a seeder according to claim 1, characterized in that: A buffer pad is sleeved on the impact column.

7. The anti-blocking seed wheel for a seeder according to claim 1, characterized in that: The wheel axle is provided with a buffer sleeve located inside the seeding ring.

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