A disassembly and assembly structure of a brush wheel and a seed wheel of a seeder

Abstract

The utility model provides a disassembly and assembly structure of a brush wheel and a seed wheel of a seed drill, and belongs to the technical field of seed drills. It solves the problem of how to improve the convenience of disassembly and assembly of the seed wheel and the brush wheel. In the disassembly and assembly structure of the brush wheel and the seed wheel of the seed drill, the seed drill includes an inner wheel body and side covers rotatably connected to both sides of the inner wheel body, and the side walls of the inner wheel body are provided with adjacently arranged mounting grooves 1 and 2, and the inner wheel body has a mounting shaft 1 located in the mounting groove 1 and a mounting shaft 2 located in the mounting groove 2, and one of the side covers is provided with a mounting port that can connect to the mounting groove 1 or the mounting groove 2, the brush wheel is embedded in the mounting groove 1 and rotatably connected to the mounting shaft 1, the seed wheel is embedded in the mounting groove 2 and rotatably connected to the mounting shaft 2, the outer wall of the seed wheel is attached to the outer wall of the brush wheel, and the side cover is detachably connected with a plug cover that seals the mounting port. The disassembly and assembly structure of the brush wheel and the seed wheel of the seed drill can improve the convenience of disassembly and assembly of the seed wheel and the brush wheel.

Description

Technical Field

[0001] The utility model belongs to the technical field of seed drills and relates to a disassembly and assembly structure of a brush wheel and a seed wheel 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] Specifically, the seeder includes a traveling wheel and a handrail frame connected to the traveling wheel. The traveling 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 traveling wheel. In addition, a gear group consisting of a brush wheel, a seed wheel and several gears is provided in the inner wheel body. The brush wheel is rotatably connected to the inner wheel body through a rotating shaft, the seed wheel is positioned on the output gear in the gear group, and the outer wall of the brush wheel is in contact with the outer wall of the seed wheel.

[0004] When in use, the seed box inputs the seed material into the inner wheel body, and falls onto the seed wheel due to gravity. The seed material is accommodated in the seed groove opened on the outer wall of the seed wheel. The seed wheel rotates continuously under the action of the gear set, and the seed material falls into the duckbill when the seed groove is facing downward, and is sown into the soil by the duckbill. In the above process, the brush rotates synchronously with the rotation of the seed wheel to brush off the excess seed material in the seed groove, so as to achieve the purpose of precise sowing.

[0005] However, in actual use, due to the different sizes of seeds to be sown, the brush wheel becomes dirty or stuck due to foreign objects after long-term use, or other reasons, the seed wheel and the brush wheel need to be replaced. The seeder in the prior art often needs to remove the side cover and then replace the seed wheel and the brush wheel, which is very inconvenient to operate and greatly affects work efficiency. Summary of the invention

[0006] The purpose of the utility model is to solve the above problems in the existing technology and propose a disassembly and assembly structure of a brush wheel and a seed wheel of a seeder. The technical problem to be solved by the utility model is: how to improve the convenience of disassembly and assembly of the seed wheel and the brush wheel.

[0007] The objectives of the utility model can be achieved through the following technical solutions: a disassembly and assembly structure of a brush wheel and a seed wheel of a seeder, the seeder comprising an inner wheel body and side covers rotatably connected to both sides of the inner wheel body, characterized in that the side walls of the inner wheel body are provided with adjacent mounting grooves 1 and 2, and the inner wheel body has a mounting shaft 1 located in the mounting groove 1 and a mounting shaft 2 located in the mounting groove 2, one of the side covers is provided with a mounting opening that can communicate with the mounting groove 1 or the mounting groove 2, the brush wheel is embedded in the mounting groove 1 and rotatably connected to the mounting shaft 1, the seed wheel is embedded in the mounting groove 2 and rotatably connected to the mounting shaft 2, the outer wall of the seed wheel is in contact with the outer wall of the brush wheel, and the side cover is detachably connected with a blocking cover that seals the mounting opening.

[0008] Compared with the prior art, the disassembly and assembly structure of the brush wheel and the seed wheel of the present seeder is different in that: the brush wheel is accommodated by the accommodating groove one, the seed wheel is accommodated by the accommodating groove two, and the brush wheel is connected to the mounting shaft one, and the seed wheel is connected to the mounting shaft two. It is worth mentioning that the mounting shaft one and the mounting shaft two are respectively formed on the two output gears in the gear set. When the gear set is transmitted, the two output gears can respectively drive the mounting shaft one and the mounting shaft two to rotate. On this basis, the disassembly and assembly structure of the brush wheel and the seed wheel of the present seeder is through a mounting opening on one of the side covers. When the seed wheel or the brush wheel needs to be disassembled and replaced, the user can rotate the side cover to make the mounting opening align with the mounting groove one or the mounting groove two. At this time, the user can take out and replace the brush wheel in the mounting groove one or the seed wheel in the mounting groove two according to the needs, thereby achieving the effect of improving the convenience of replacing the seed wheel and the brush wheel, and after the replacement is completed, a blocking cover is installed on the side cover to seal the mounting opening to prevent the seed wheel or the brush wheel from falling out.

[0009] In the above-mentioned disassembly and assembly structure of the brush wheel and seed wheel of the seeder, the second installation shaft is polygonal, the seed wheel is provided with a snap-in hole that matches the shape of the second installation shaft, the second installation shaft is inserted into the snap-in hole, the second installation groove also has an auxiliary shaft spaced from the second installation shaft, the seed wheel is provided with a positioning hole, the auxiliary shaft is inserted into the positioning hole, and the circumferential outer wall is in contact with the circumferential inner wall of the positioning hole. The use of the polygonal installation shaft 2 and the snap-in hole can effectively prevent the seed wheel from getting stuck and the installation shaft 2 from idling. In addition, in order to avoid the situation where the installation shaft 2 and the inner wall of the snap-in hole are subjected to excessive load, the auxiliary shaft is connected to the positioning hole, thereby achieving the advantage of dispersing the torsional force on the seed wheel and effectively ensuring the service life of the seed wheel.

[0010] In the above-mentioned disassembly and assembly structure of the brush wheel and the seed wheel of the seeder, the auxiliary shafts have two and are symmetrically arranged relative to the second mounting shaft, and the positioning holes have two and are symmetrically arranged relative to the mounting opening, thereby ensuring that the torsional force is dispersed more evenly and the service life of the seed wheel is guaranteed.

[0011] In the above-mentioned disassembly and assembly structure of the brush wheel and the seed wheel of the seed drill, the plug cover is disc-shaped and has an outwardly extending abutting edge on the top circumferential side wall, and a limiting plate extending outward is provided on the outer side wall of the bottom of the plug cover, and a notch is provided on the inner side wall of the installation opening, and the limiting plate is embedded in the installation opening through the notch. After aligning the limiting plate with the notch and inserting the lower end of the plug cover into the installation opening, the user can rotate the plug cover clockwise or counterclockwise to misalign the notch with the limiting plate. In this case, the inner wall of the installation opening is embedded between the abutting edge and the limiting plate, thereby ensuring the installation stability of the plug cover.

[0012] In the above-mentioned disassembly and assembly structure of the brush wheel and seed wheel of the seed drill, a deformation groove is provided on the upper circumferential direction of the blocking cover plate surface to form a tightening strip at the edge of the side wall of the blocking cover, and a tightening block is provided on the side cover, and the outer side wall of the tightening strip is pressed against the outer side wall of the tightening block. The setting of the deformation groove makes the tightening strip elastic, and under the action of the elasticity, the tightening strip and the tightening block are pressed against each other, thereby further ensuring the installation stability of the blocking cover.

[0013] In the above-mentioned disassembly and assembly structure of the brush wheel and the seed wheel of the seed drill, the abutment block is in the shape of a triangular prism, and two side surfaces of the abutment block are respectively a guide surface and a limit surface that can abut against the outer side surface of the abutment strip. Specifically, when the user rotates the plugging cover, the outer wall of the abutment strip can first abut against the guide surface, and under the action of pressure, the guide surface and the outer side surface of the abutment strip are continuously pressed, causing the outer side surface of the abutment strip to be squeezed and deformed, thereby causing the abutment strip to pass through the guide surface and abut against the abutment surface, and due to the protruding structure between the abutment surface and the guide surface, the plugging cover can be effectively prevented from reversing and falling off.

[0014] In the above-mentioned disassembly and assembly structure of the brush wheel and the seed wheel of the seeder, the guide surface and the limit surface have an arc transition, so as to ensure that when the plug cover is tightened, the plug cover is prevented from getting stuck when sliding from the guide surface to the pressing surface.

[0015] Compared with the prior art, the disassembly and assembly structure of the brush wheel and the seed wheel of the present seeder has the following advantages: the brush wheel is accommodated by mounting groove one, and the seed wheel is accommodated by mounting groove two, and under the premise of ensuring the stable installation of the two, an installation port that can be connected to mounting groove one or mounting groove two is opened on one of the side covers, and the user can rotate the side cover to make the mounting port position correspond to mounting groove one or mounting groove two, ensuring that the user can replace the brush wheel or the seed wheel through the mounting port, and at the same time, the mounting port is blocked by the blocking cover to ensure the installation stability of the brush wheel and the seed wheel when the seeder is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the disassembly and assembly structure of the brush wheel and the seed wheel of the seeder.

[0017] Figure 2 This is a schematic diagram of the structure of the inner wheel. Figure 1 .

[0018] Figure 3 This is a schematic diagram of the structure of the inner wheel. Figure 2 .

[0019] Figure 4 It is a schematic diagram of the structure of the inner wheel body after the brush wheel and seed wheel are removed.

[0020] Figure 5 It is a schematic diagram of the structure of the side cover.

[0021] Figure 6 This is an exploded view of the side cover and the plug cover.

[0022] Figure 7 It is a schematic diagram of the structure of the wheel.

[0023] Figure 8 It is a schematic diagram of the structure of the plugging cover.

[0024] In the figure, 1, inner wheel body; 11, mounting groove 1; 111, mounting shaft 1; 12, mounting groove 2; 121, mounting shaft 2; 122, auxiliary shaft; 13, limit cover 1; 14, limit cover 2; 2, side cover; 21, mounting opening; 211, notch; 22, blocking cover; 221, abutment edge; 222, limit plate; 223, deformation groove; 224, tightening strip; 23, tightening block; 231, guide surface; 232, limit surface; 3, brush wheel; 4, seed wheel; 41, snap-in hole; 42, positioning hole. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figure 1-3 As shown in the disassembly and assembly structure of the brush wheel and the seed wheel of the seed drill, the seed drill comprises an inner wheel body 1, and side covers 2 are rotatably connected to both sides of the inner wheel body 1 through a rotating shaft, and a plurality of duck bills arranged around the inner wheel body 1 are connected between the two side covers 2 by a clamping method. Figure 4A mounting groove 11 and a mounting groove 2 12 are provided on one side wall of the inner wheel body 1. The mounting groove 11 and the mounting groove 2 12 are arranged adjacent to each other. A mounting shaft 111 connected to the gear set is provided in the mounting groove 11. A mounting shaft 2 121 connected to the gear set is provided in the mounting groove 2 12. The brush wheel 3 is embedded in the mounting groove 11 and is fixedly engaged with the mounting shaft 111 through a spline. The seed wheel 4 is embedded in the mounting groove 2 12 and engaged with the mounting shaft 2 121. Figure 7 The second installation shaft 121 is specifically in the shape of a hexagonal prism, and a hexagonal clamping hole 41 is opened at the center of the seed wheel 4 along the thickness direction. The second installation shaft 121 is penetrated into the clamping hole 41 and the circumferential outer wall is in contact with the circumferential inner wall of the clamping hole 41. In addition, two positioning holes 42 are opened on the seed wheel 4 along the thickness direction, and the two positioning holes 42 are symmetrically arranged around the clamping hole 41. Two auxiliary shafts 122 fixedly connected to the gear set are provided in the second installation groove 12, and the two auxiliary shafts 122 are symmetrically arranged around the second installation shaft 121. When the seed wheel 4 is installed, the second installation shaft 121 is inserted into the clamping hole 41, and the auxiliary shafts 122 are also embedded in the positioning holes 42 one by one.

[0027] Combination Figure 5 and Figure 6 A mounting opening 21 is provided on one of the side covers 2, and after the side cover 2 is rotated and adjusted, the mounting opening 21 can be aligned with the mounting groove 11 or the mounting groove 2 12. A blocking cover 22 is provided on the side cover 2 with the mounting opening 21, and the user can block the mounting opening 21 through the blocking cover 22. Figure 8 Specifically, the blocking cover 22 is disc-shaped, and has an outwardly protruding abutting edge 221 on the circumferential direction of the upper outer side wall of the top, and two limit plates 222 arranged at intervals along the circumference of the blocking cover 22 at the bottom. Two notches 211 corresponding to the positions of the two limit plates 222 are opened on the inner wall of the installation opening 21. When installing the blocking cover 22, the user can align each limit plate 222 with each notch 211, and after inserting the bottom of the blocking cover 22 into the installation opening 21, rotate it clockwise or counterclockwise so that each limit plate 222 is misaligned with each notch 211, so that the inner wall of the installation opening 21 is embedded between the limit plate 222 and the abutting edge 221.

[0028] Secondly, a long strip-shaped deformation groove 223 is circumferentially provided at the top of the blocking cover 22 near the outer edge, so that an elastic tightening strip 224 is formed at the outer edge of the top of the blocking cover 22, and at the same time, a triangular prism-shaped tightening block 23 is integrally formed on the side cover 2 with the mounting opening 21, two side surfaces of the tightening block 23 are respectively a guide surface 231 and a limiting surface 232, and the junction between the guide surface 231 and the limiting surface 232 is an arc transition. When the user screws the blocking cover 22 to position it, under the action of the elastic force, the tightening strip 224 is pressed against the guide surface 231 and slides along the guide surface 231 to the limiting surface 232, so that the tightening strip 224 is pressed against the limiting surface 232.

[0029] It is worth mentioning that Figure 2 As shown, on the inner wheel body 1, a limit cover 13 is installed at the slot corresponding to the mounting slot 11, and a limit cover 14 is installed at the slot corresponding to the mounting slot 2 12. By setting the two limit covers 13 and 14, the seed wheel 4 and the brush wheel 3 can be covered, and the seed wheel 4 and the brush wheel 3 can be axially limited.

[0030] Operation principle: the user twists the plugging cover 22 counterclockwise to remove it, then rotates the side cover 2 to align the side cover 2 with the mounting groove 1 11 or the mounting groove 2 12, takes out the brush wheel 3 in the mounting groove 1 11 or the seed wheel 4 in the mounting groove 2 12 and installs a new brush wheel 3 or seed wheel 4, then inserts the plugging cover 22 into the mounting opening 21 and twists it clockwise to secure it.

[0031] 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.

[0032] Although this article uses more terms such as inner wheel body 1, mounting groove 11, mounting shaft 111, mounting groove 2 12, mounting shaft 2 121, auxiliary shaft 122, side cover 2, mounting opening 21, notch 211, plug cover 22, abutting edge 221, limiting plate 222, deformation groove 223, abutting strip 224, abutting block 23, guide surface 231, limiting surface 232, brush wheel 3, seed wheel 4, clamping hole 41, positioning hole 42, etc., it does not exclude the possibility of using other terms. These terms are used 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 disassembly and assembly structure of a brush wheel and a seed wheel of a seed drill, the seed drill comprising an inner wheel body (1) and side covers (2) rotatably connected to both sides of the inner wheel body (1), characterized in that: The side wall of the inner wheel body (1) is provided with a mounting groove 1 (11) and a mounting groove 2 (12) which are arranged adjacent to each other, and the inner wheel body (1) has a mounting shaft 1 (111) located in the mounting groove 1 (11) and a mounting shaft 2 (121) located in the mounting groove 2 (12), one of the side covers (2) is provided with a mounting opening (21) which can be connected to the mounting groove 1 (11) or the mounting groove 2 (12), the brush wheel (3) is embedded in the mounting groove 1 (11) and connected to the mounting shaft 1 (111), the seed wheel (4) is embedded in the mounting groove 2 (12) and connected to the mounting shaft 2 (121), the outer wall of the seed wheel (4) is in contact with the outer wall of the brush wheel (3), and the side cover (2) is detachably connected with a plugging cover (22) which seals the mounting opening (21).

2. The disassembly and assembly structure of the brush wheel and the seed wheel of the seed drill according to claim 1, characterized in that: The second installation shaft (121) is polygonal, the seed wheel (4) is provided with a clamping hole (41) matching the shape of the second installation shaft (121), the second installation shaft (121) is inserted into the clamping hole (41), the second installation groove (12) is also provided with an auxiliary shaft (122) spaced from the second installation shaft (121), the seed wheel (4) is provided with a positioning hole (42), the auxiliary shaft (122) is inserted into the positioning hole (42), and the circumferential outer wall is in contact with the circumferential inner wall of the positioning hole (42).

3. The disassembly and assembly structure of the brush wheel and the seed wheel of the seed drill according to claim 2, characterized in that: The auxiliary shafts (122) have two and are symmetrically arranged relative to the second installation shaft (121); the positioning holes (42) have two and are symmetrically arranged relative to the installation opening (21).

4. The disassembly and assembly structure of the brush wheel and the seed wheel of the seed drill according to claim 2 or 3, characterized in that: The blocking cover (22) is disc-shaped and has an outwardly extending abutting edge (221) on the circumferential side wall of the top, a limiting plate (222) extending outward is provided on the outer side wall of the bottom of the blocking cover (22), a notch (211) is provided on the inner side wall of the installation opening (21), and the limiting plate (222) is embedded in the installation opening (21) through the notch (211).

5. The disassembly and assembly structure of the brush wheel and the seed wheel of the seed drill according to claim 4, characterized in that: A deformation groove (223) is provided in the circumferential direction on the plate surface of the blocking cover (22) so that a tightening strip (224) is formed at the edge of the side wall of the blocking cover (22); a tightening block (23) is provided on the side cover (2); and the outer side wall of the tightening strip (224) is in tight contact with the outer side wall of the tightening block (23).

6. The disassembly and assembly structure of the brush wheel and the seed wheel of the seed drill according to claim 5, characterized in that: The abutting block (23) is in the shape of a triangular prism, and two side surfaces of the abutting block (23) are respectively a guide surface (231) and a limit surface (232) capable of abutting against the outer side surface of the abutting strip (224).

7. The disassembly and assembly structure of the brush wheel and the seed wheel of the seed drill according to claim 6, characterized in that: There is an arcuate transition between the guide surface (231) and the limiting surface (232).

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