A kind of seed wheel anti-wear structure of seed drill

Abstract

The utility model provides an anti-wear structure for a seed wheel of a seeder, belonging to the field of mechanical technology. It solves the problem of how to increase the service life of the seed wheel. In the anti-wear structure for the seed wheel of the seeder, the seeder includes an inner wheel body with a mounting groove, the seed wheel is rotatably connected in the mounting groove, the anti-wear structure includes a positioning cover and a connecting cover, the connecting cover is positioned on the seed wheel, the positioning cover and the inner wheel body can be detachably connected and cover the mounting groove, and the positioning cover is rotatably connected to the connecting cover. The anti-wear structure for the seed wheel of the seeder can increase the service life of the seed wheel.

Description

Technical Field

[0001] The utility model belongs to the technical field of seed drills and relates to a seed wheel anti-wear structure of a seed drill. Background Art

[0002] A seeder is an agricultural machine used in the prior art for sowing on large areas of land. It is favored by growers because of its high sowing efficiency, replacing the manual sowing method used in traditional technology.

[0003] In the prior art, a seeder consists of two parts: a walking wheel and an armrest frame connected to the walking wheel. The walking wheel is a main component assembly, which generally includes a seed box, an inner wheel body connected to the seed box, side covers rotatably connected to both sides of the inner wheel body through a rotating shaft, and a number of duckbills detachably connected to the two side covers around the circumference of the walking wheel. In addition, a brush wheel, a seed wheel and a gear set composed of several gears are provided in the inner wheel body. The brush wheel and the seed wheel are rotatably connected to the mounting groove opened on the inner wheel body through a rotating shaft and are transmission connected to the gear set, and the outer wall of the brush wheel is in contact with the outer wall of the seed wheel.

[0004] The seed wheel is an indispensable part of the seeder, and its main function is: when the seeds in the seed box fall into the seed grooves on the seed wheel, the rotating shaft drives the seed wheel to rotate, so that the seeds in the seed grooves fall into the duckbill for sowing, and at the same time, the brush fits with the outer surface of the seed wheel to scrape off the excess seeds, ensuring the effect of single seeding.

[0005] However, in actual use, especially when the seeder is installed on an agricultural tractor for mechanized work, the high-intensity rotation will cause the seed wheel to move axially on the rotating shaft. Over time, this will cause side wear of the seed wheel, thereby affecting the transmission coordination between the seed wheel and the gear set, affecting the service life of the seed wheel and may also have a corresponding impact on the gear set. Summary of the invention

[0006] The utility model aims at solving the above problems in the prior art and proposes a seed wheel anti-wear structure for a seeder. The technical problem to be solved by the utility model is: how to increase the service life of the seed wheel.

[0007] The purpose of the utility model can be achieved through the following technical solutions: a wear-resistant structure for a seed wheel of a seeder, the seeder comprising an inner wheel body with an installation groove, characterized in that the seed wheel is rotatably connected in the installation groove, the wear-resistant structure comprises a positioning cover and a connecting cover, the connecting cover is positioned on the seed wheel, the positioning cover and the inner wheel body can be detachably connected and cover the notch of the installation groove, and the positioning cover and the connecting cover are rotatably connected.

[0008] In the anti-wear structure of the seed wheel of the present seeder, the seed wheel is rotatably connected to the installation groove opened on the inner wheel body by being embedded. In order to ensure its installation stability, a positioning cover is detachably connected to the inner wheel body to seal the notch of the installation groove, so as to achieve the effect of axially limiting the seed wheel on the rotating shaft. On the basis of this structure, a connecting cover is also installed in the installation groove, and the connecting cover is positioned on the seed wheel, and the connecting cover is rotatably connected to the positioning cover. During the sowing process of the seeder, the rotating seed wheel can drive the connecting cover to rotate synchronously. Due to the rotational coordination between the connecting cover and the positioning cover, the wear between the seed wheel and the positioning cover is effectively avoided, thereby effectively reducing the wear degree of the seed wheel after long-term work, and effectively improving the service life of the seed wheel.

[0009] In the above-mentioned anti-wear structure of the seed wheel of the seed drill, the anti-wear structure also includes a bearing, the positioning cover and the connecting cover are both in the shape of a plate, the connecting cover has a protrusion, the positioning cover has a snap-in groove, the inner ring of the bearing is snap-in with the protrusion, and the outer ring of the bearing is embedded and positioned in the snap-in groove. The connecting cover and the positioning cover are connected by a bearing. Specifically, the inner ring of the bearing is snap-in with the outside of the protrusion on the connecting cover, and the outer ring is embedded and positioned in the snap-in groove on the positioning cover, thereby ensuring the connection stability between the connecting cover and the positioning cover. At the same time, the existence of the bearing effectively reduces the degree of wear between the connecting cover and the positioning cover, thereby ensuring that the wear between the connecting cover and the positioning cover is smaller.

[0010] In the above-mentioned anti-wear structure of the seeding wheel of the seeder, a positioning groove is provided on the outer wall of any side of the seeding wheel, and the connecting cover is snap-fitted and positioned in the positioning groove. Through this arrangement, the connection cover is ensured to be stably connected to the seeding wheel and is easy to disassemble.

[0011] In the above-mentioned anti-wear structure of the seed wheel of the seeder, the outer wall of the positioning cover has a plurality of spaced limiting parts along the circumferential direction, each of the limiting parts abuts against the inner wall of the mounting groove, and the notch of the mounting groove has a plurality of spaced limiting plates along the circumferential direction, each of the limiting plates is correspondingly pressed on each of the limiting parts, and the inner wall of the mounting groove near the notch has a resting edge along the circumferential direction, and the positioning cover covers the notch of the mounting groove and abuts against the resting edge. After the positioning cover is embedded in the notch of the mounting groove, the bottom circumferential edge of the positioning cover abuts against the abutting edge, thereby preventing the positioning cover from excessively extending into the mounting groove. At the same time, the limiting parts on its outer wall are aligned with the limiting plates at the notch of the mounting groove by rotating, so that the limiting parts are pressed onto the limiting parts, thereby the abutting edge cooperates with the limiting parts to complete the positioning of the positioning cover, ensuring that the positioning cover can be firmly positioned at the notch of the mounting groove. As a further specific scheme, after the positioning cover is embedded in the notch of the mounting groove, the positioning plates abut against the inner wall of the mounting groove, thereby ensuring that the positioning cover will not shake along the circumferential direction in the mounting groove, and the limiting plates are specifically arranged radially symmetrically relative to the positioning cover, thereby ensuring the positioning stability of the positioning cover.

[0012] In the above-mentioned anti-wear structure of the seed wheel of the seed drill, the inner wall of the mounting slot notch has a triangular positioning part, and the outer wall of the positioning cover has a triangular abutting part. When the corresponding pressure caps of the limiting plates are on the limiting parts, the abutting part abuts against the positioning part. Through this arrangement, after the rotatable positioning cover is manually screwed into place by the user, that is, when the corresponding pressure caps of the limiting plates are on the limiting parts, the abutting part abuts against the positioning part to limit the positioning cover in the circumferential direction. In addition, the abutting part and the positioning part are both triangular and have good structural strength.

[0013] In the above-mentioned seeding wheel anti-wear structure of the seeding machine, the seeding wheel includes a disc-shaped plate body, and the side edges of two plates opposite to each other are provided with a plurality of semicircular grooves spaced apart along the circumferential direction. The two plates are overlapped and detachably connected by screws so that the semicircular grooves on the two plates are relatively enclosed one by one to form a plurality of seeding grooves. The two separate plates are screwed together to form a complete seeding wheel, so as to ensure that the replacement cost of the seeding wheel is lower.

[0014] In the above-mentioned anti-wear structure of the seed wheel of the seeder, the seed wheel also includes a disc-shaped seed limiting plate, the seed limiting plate is located between the two plate bodies, and the outer wall of the seed limiting plate is provided with a plurality of spaced-apart paving grooves along the circumferential direction, and each of the paving grooves corresponds to the position of each of the seed slots. By setting the seed limiting plate, the space in the seed slot is limited, so that only one seed material can enter each slot, and because each paving groove is arranged in alignment with each slot, the seed material is prevented from being blocked.

[0015] In the above-mentioned anti-wear structure of the seeding wheel of the seeder, the seeding wheel includes two disc-shaped plates and a disc-shaped seed limiting plate, the seed limiting plate is located between the two plates, and the side edges of the two plates on opposite sides are provided with a plurality of spaced semicircular grooves along the circumferential direction, the two plates and the seed limiting plate are integrally formed, and the semicircular grooves on the two plates are relatively enclosed one by one to form a plurality of seed grooves, and the outer wall of the seed limiting plate is provided with a plurality of spaced yield grooves along the circumferential direction, and each yield groove corresponds to the position of each seed groove one by one. As an alternative scheme different from the aforementioned scheme, the structure of the seeding wheel can also be an integrated structure in which the two plates and the seed limiting plate are integrally formed, which abandons the advantage that the plates can be individually disassembled and replaced, but correspondingly improves the stability of the overall structure of the seeding wheel.

[0016] Compared with the prior art, the anti-wear structure of the seed wheel of this seeder has the following advantages:

[0017] By installing a connecting cover positioned on the seed wheel in the mounting groove of the inner wheel body and a positioning cover at the notch of the mounting groove, the seed wheel is axially positioned by the positioning cover, and the connecting cover and the positioning cover are rotationally connected by a bearing, so that during the rotation of the seed wheel, the connecting cover and the bearing cooperate with the positioning cover to offset the wear of the seed wheel, thereby effectively improving the service life of the seed wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the anti-wear structure of the seed wheel of the seeder.

[0019] Figure 2 It is an exploded view of the anti-wear structure of the seed wheel of this seeder.

[0020] Figure 3 It is a cross-sectional view and a partial enlarged view of the anti-wear structure of the seed wheel of the seeder.

[0021] Figure 4 It is a schematic diagram of the structure of the inner wheel body.

[0022] Figure 5 Schematic diagram of the structure of the connection cover.

[0023] Figure 6 It is a structural schematic diagram of the positioning cover.

[0024] Figure 7 It is a schematic diagram of the structure of the wheel.

[0025] Figure 8 This is an exploded view of the wheel.

[0026] In the figure, 1, inner wheel body; 11, mounting groove; 111, limiting plate; 112, abutting edge; 113, positioning part; 2, seed wheel; 21, plate body; 211, semicircular groove; 22, seed groove; 23, seed limiting plate; 231, yielding groove; 24, positioning groove; 3, positioning cover; 31, snap-in groove; 32, limiting part; 33, abutting part; 4, connecting cover; 41, protruding part; 5, bearing. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] Embodiment 1

[0029] like Figure 1-3 As shown in the figure, in the anti-wear structure of the seed wheel of the seed drill, the seed drill comprises an inner wheel body 1 with a mounting groove 11 on the side, and the two sides of the inner wheel body 1 are rotatably connected with side covers through a rotating shaft, and the mounting groove 11 has a rotating shaft arranged along the thickness direction of the inner wheel body 1 and integrally formed on the transmission gear set, and the seed wheel 2 is embedded in the mounting groove 11 and is clamped and positioned on the rotating shaft, combined with Figure 5 and Figure 6 The anti-wear structure includes a bearing 5 with a disc-shaped connection cover 4 and a positioning cover 3, combined with Figure 4 On the inner wheel body 1, an abutment edge 112 is circumferentially provided on the inner wall of the mounting groove 11 near the notch, the positioning cover 3 is embedded in the mounting groove 11 and makes its bottom circumferential edge abut against the abutment edge 112, and the outer wall of the positioning cover 3 has two elongated limiting parts 32 circumferentially, and the two limiting parts 32 are symmetrically arranged along the radial direction of the positioning cover 3, and two elongated limiting plates 111 are integrally formed at the notch of the mounting groove 11, and the positions of the two limiting plates 111 correspond one by one to the two limiting parts 32. After the user embeds the positioning cover 3 into the mounting groove 11, the user can manually screw the positioning cover 3 so that the limiting plates 111 are pressed one by one on the limiting parts 32, and cooperate with the abutment edge 112 to firmly position the positioning cover 3 at the notch of the mounting groove 11.

[0030] Combination Figure 7 and Figure 8The seed wheel 2 includes two disc-shaped plates 21, which are overlapped and screwed together by a number of screws. The edges of the plates on the opposite sides of the two plates 21 are provided with a number of spaced semicircular grooves 211 along the circumferential direction, and the semicircular grooves 211 on one plate 21 correspond to the semicircular grooves 211 on the other plate 21 to form a seed groove 22 for accommodating seed material. A positioning groove 24 is provided on the side of each plate 21, and the connecting cover 4 is positioned in the positioning groove 24 by snapping, and a protrusion 41 protruding in the direction of the notch of the mounting groove 11 is provided at the center of the side facing away from the seed wheel 2. A snap-in groove 31 is provided at the center of the plate surface on the side of the positioning cover 3 facing the seed material. The bearing 5 is located between the connecting cover 4 and the positioning cover 3, and its inner ring is snap-fitted with the protrusion 41, and the outer ring is embedded and positioned in the snap-in groove 31.

[0031] In addition, Figure 8 As shown, the seed wheel 2 also includes a circular seed limiting plate 23, which is located between the two plate bodies 21. The two plate bodies 21 firmly clamp the seed limiting plate 23 when they are screwed and locked. A plurality of make way grooves 231 are opened along the circumferential direction on the outer wall of the seed limiting plate 23, and the positions of the plurality of make way grooves 231 correspond one by one to the positions of various grooves 22.

[0032] like Figure 4 and Figure 6 As shown, a triangular positioning portion 113 is provided at the notch of the mounting slot 11, and a triangular abutting portion 33 is provided on the outer wall of the positioning cover 3. When the user tightens the positioning cover 3 so that each limiting plate 111 presses each limiting portion 32, the abutting portion 33 can abut against the positioning portion 113, thereby limiting the rotation range of the positioning cover 3.

[0033] In addition, as a further solution, a deformation groove is provided along the circumferential direction of the positioning cover 3 near the edge of the positioning cover 3, so that the outer edge of the positioning cover 3 forms a long deformation strip, and the abutment portion 33 is located on the outer wall of the deformation strip.

[0034] Working principle: When the seed wheel 2 is driven by the rotating shaft to rotate, it drives the connecting cover 4 to rotate together. In this state, the positioning cover 3 presses and positions the connecting cover 4, thereby preventing the seed wheel 2 from circumferential movement in the installation groove 11, and through the setting of the bearing 5, the connecting cover 4 does not contact the positioning cover 3 when rotating relative to the positioning cover 3, so that the seed wheel 2 no longer contacts the inner wheel body 1, the positioning cover 3 and other components in the rotating state, thereby effectively preventing the seed wheel 2 from wearing.

[0035] Embodiment 2

[0036] The structure of this embodiment is basically the same as that of the first embodiment, except that the two plates 21 and the limit plate 23 constituting the seed wheel are integrally formed by injection molding during the manufacturing process.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0038] Although this article uses more terms such as inner wheel body 1, mounting groove 11, limiting plate 111, abutting edge 112, positioning portion 113, seed wheel 2, plate body 21, semicircular groove 211, seed groove 22, limiting plate 23, clearance groove 231, positioning cover 3, clamping groove 31, limiting portion 32, abutting portion 33, connecting cover 4, protruding portion 41, bearing 5, etc., it does not exclude the possibility of using other terms. The use of these terms is only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A seed wheel anti-wear structure of a seed drill, the seed drill comprising an inner wheel body (1) having a mounting groove (11), characterized in that: The seed wheel (2) is rotatably connected in the installation groove (11), and the anti-wear structure comprises a positioning cover (3) and a connecting cover (4). The connecting cover (4) is positioned on the seed wheel (2), and the positioning cover (3) and the inner wheel body (1) can be detachably connected and cover the groove of the installation groove (11), and the positioning cover (3) and the connecting cover (4) are rotatably connected.

2. The anti-wear structure of the seed wheel of the seeder according to claim 1, characterized in that: The anti-wear structure also includes a bearing (5); the positioning cover (3) and the connecting cover (4) are both plate-shaped; the connecting cover (4) has a protrusion (41); the positioning cover (3) has a snap-fit ​​groove (31); the inner ring of the bearing (5) is snap-fitted with the protrusion (41); and the outer ring of the bearing (5) is embedded in and positioned in the snap-fit ​​groove (31).

3. The anti-wear structure of the seed wheel of the seed drill according to claim 1 or 2, characterized in that: A positioning groove (24) is provided on the outer wall of any one side of the seed wheel (2), and the connecting cover (4) is snap-fitted and positioned in the positioning groove (24).

4. The anti-wear structure of the seed wheel of the seed drill according to claim 3, characterized in that: The outer wall of the positioning cover (3) is provided with a plurality of spaced limiting portions (32) along the circumferential direction, each of the spaced limiting portions (32) abuts against the inner wall of the mounting groove (11), the notch of the mounting groove (11) is provided with a plurality of spaced limiting plates (111) along the circumferential direction, each of the spaced limiting plates (111) is pressed correspondingly on each of the spaced limiting portions (32), the inner wall of the mounting groove (11) close to the notch is provided with a supporting edge (112) along the circumferential direction, and the positioning cover (3) covers the notch of the mounting groove (11) and abuts against the supporting edge (112).

5. The anti-wear structure of the seed wheel of the seed drill according to claim 4, characterized in that: The inner wall of the mounting groove (11) has a triangular positioning portion (113), and the outer wall of the positioning cover (3) has a triangular abutting portion (33) (112). When each of the limiting plates (111) is pressed onto each of the limiting portions (32) correspondingly, the abutting portion (33) abuts against the positioning portion (113).

6. The anti-wear structure of the seed wheel of the seed drill according to claim 3, characterized in that: The seeding wheel (2) comprises two disc-shaped plates (21), and the side edges of the two plates (21) facing each other are provided with a plurality of semicircular grooves (211) arranged at intervals along the circumferential direction. The two plates (21) are superimposed and detachably connected by screws so that the semicircular grooves (211) on the two plates (21) are relatively enclosed one by one to form a plurality of seeding grooves (22).

7. The anti-wear structure of the seed wheel of the seed drill according to claim 6, characterized in that: The seed wheel (2) further comprises a disc-shaped seed limiting plate (23), wherein the seed limiting plate (23) is located between the two plate bodies (21), and a plurality of spaced-apart paving grooves (231) are provided on the outer wall of the seed limiting plate (23) along the circumferential direction, and each of the spaced-apart grooves (231) corresponds to each of the seed grooves (22) in a one-to-one manner.

8. The anti-wear structure of the seed wheel of the seed drill according to claim 3, characterized in that: The seed wheel (2) comprises two disc-shaped plate bodies (21) and a disc-shaped seed limiting plate (23); the seed limiting plate (23) is located between the two plate bodies (21); the side edges of the two plate bodies (21) opposite to each other are provided with a plurality of semicircular grooves (211) arranged at intervals along the circumferential direction; the two plate bodies (21) and the seed limiting plate (23) are integrally formed, and the semicircular grooves (211) on the two plate bodies (21) are relatively enclosed one by one to form a plurality of seed grooves (22); the outer wall of the seed limiting plate (23) is provided with a plurality of spaced-apart making way grooves (231) along the circumferential direction, and the positions of the making way grooves (231) and the seed grooves (22) correspond one by one.

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