Seed metering device and linkage type double seed metering device

Abstract

The utility model discloses a kind of spoon wheel seed metering body and linkage type double-machine seed metering body, the technical field of seed metering body is concerned, the utility model aims at, the utility model includes main shaft and seed metering unit;The seed metering unit includes shell, flywheel, baffle, seed metering disc;The flywheel, the baffle and the seed metering disc are set in the inside of shell, the baffle is fixedly connected with the shell, the flywheel and the seed metering disc are coaxially fixedly connected with the main shaft;The main shaft is through the shell and is rotaryly connected with the shell;The seed metering disc is provided with multiple seed spoons;The flywheel is provided with multiple seed grooves, and the seed groove is at least one-to-one corresponding with the seed spoon;The baffle is provided with seed drop opening for making seed fall into seed groove;Still include adjusting assembly for adjusting the distance between seed metering disc and baffle.

Description

Technical Field

[0001] This utility model relates to the technical field of seed-producing bodies, and specifically to one type. Background Technology

[0002] Current seeders come in various structural forms, such as air suction, spoon clamp, finger clamp, and spoon wheel. The structure of the seeder changes accordingly to meet different usage requirements, i.e., different planting methods. Furthermore, the current spoon wheel structure is prone to wear, primarily due to the wear of the seed metering disc, leading to frequent maintenance and repairs, which not only increases costs but also slows down agricultural progress. Utility Model Content

[0003] To address the aforementioned problems, specifically the issues of easy wear and tear in current seed-metering systems and the need to meet the requirements of other planting methods, this invention proposes a seed-metering system comprising a main shaft and a seed-metering unit. The seed-metering unit includes a housing, a flywheel, a partition, and a seed-metering disc. The flywheel, the partition, and the seed-metering disc are disposed inside the housing. The partition is fixedly connected to the housing, and the flywheel and the seed-metering disc are coaxially fixedly connected to the main shaft. The main shaft passes through the housing and is rotatably connected to it. The seed-metering disc is provided with multiple seed scoops. The flywheel is provided with multiple seed grooves, each corresponding at least one to a seed scoop. The partition has a seed inlet for allowing seeds to fall into the seed grooves. The invention also includes an adjustment component for adjusting the distance between the seed-metering disc and the partition.

[0004] A further feature of this invention is that it includes an adjustment assembly, which comprises a spring, a clamping member, a clamping nut, and an adjusting member; the spring is sleeved on the main shaft, and both ends of the spring abut against the flywheel and the seed metering disc, respectively; the clamping nut is threadedly connected to the end of the main shaft and presses against the clamping member, and the clamping member presses against the seed metering disc through the adjusting member.

[0005] A further feature of this invention is that: at least two inclined bosses with slopes are provided on the surface of the adjusting member facing the pressing member; and a pad corresponding to the inclined bosses is provided on the surface of the pressing member facing the adjusting member.

[0006] A further feature of this invention is that the adjusting member has a limiting groove on its side, and the pressing member has a protrusion located within the limiting groove.

[0007] A further feature of this invention is that the side of the adjusting member is provided with a plurality of positioning grooves; the clamping member is hinged to a swing arm member for engaging the positioning grooves.

[0008] A further feature of this invention is that a torsion spring is mounted on the clamping member, one end of the torsion spring is fixed to the clamping member, and the other end of the torsion spring is fixed to the swing arm member.

[0009] A further feature of this invention is that the partition has an annular groove opposite to the seed spoon to increase the space for accommodating seeds.

[0010] A further feature of this invention is that the outer shell is provided with a plurality of positioning holes arranged in an array, the positioning holes being used to connect the partition to adjust the position of the partition.

[0011] A further feature of this invention is that the seed spoons are grouped into sets of three, wherein the included angles between two adjacent seed spoons are α and β, respectively, where α < β.

[0012] This utility model also proposes a linkage dual-machine seeding body, including a main shaft and two seeding units as described above. The two seeding units are symmetrically arranged, and the main shaft passes through both seeding units simultaneously.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By setting different relative angles for the seed spoons, the planting mode can be changed. The improved linkage double-machine seeding system can also realize the current triangular planting mode.

[0015] The problem of easy wear and tear on the seed metering disc can be solved by setting adjustment components and modifying the structure accordingly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the spoon wheel seeding body of this utility model.

[0017] Figure 2 This is a structural schematic diagram of the spoon wheel seeding body of this utility model from another perspective.

[0018] Figure 3 This is a schematic diagram of the internal structure of the outer shell of this utility model.

[0019] Figure 4 This is a schematic diagram of the bottom shell of this utility model.

[0020] Figure 5 This is an exploded view of the flywheel, partition, and seed metering disc in this utility model.

[0021] Figure 6 This is a schematic diagram of the adjustment component in this utility model.

[0022] Figure 7 This is a structural schematic diagram of the clamping component in this utility model.

[0023] Figure 8 This is a schematic diagram of the adjusting component in this utility model.

[0024] Figure 9 This is a schematic diagram of the structure of the linkage double-machine seeding body in this utility model.

[0025] Reference numerals: 1. Outer shell; 11. Bottom shell; 12. Cover; 121. Positioning hole; 2. Flywheel; 21. Seed groove; 3. Partition; 31. Annular groove; 32. Seed drop outlet; 4. Seed dispensing tray; 41. Seed spoon; 42. Fixing protrusion; 5. Adjusting component; 51. Pressing component; 511. Pad; 512. Restricting protrusion; 513. Swinging component; 514. Torsion spring; 52. Adjusting component; 521. Sloping boss; 522. Restricting groove; 523. Positioning groove; 524. Fixing groove; 53. Spring; 54. Pressure nut; 6. Main shaft; 7. Drive shaft. Detailed Implementation

[0026] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0027] Example 1

[0028] See Figure 1-8 This embodiment discloses a 41-wheel seed metering body, which includes a main shaft 6 and a seed metering unit.

[0029] The seed metering unit includes a housing 1, a flywheel 2, a partition 3, a housing 1, and an adjustment component 5.

[0030] The outer shell 1 comprises two parts: a bottom shell 11 and a cover 12, which are connected by bolts. An inlet for adding seeds into the outer shell 1 is provided on the cover 12, and an outlet for discharging seeds is provided at the bottom of the bottom shell 11.

[0031] The flywheel 2, partition 3, and seed metering tray 4 are all located inside the outer casing 1. The partition 3 is positioned between the flywheel 2 and the seed metering tray 4, with the flywheel 2 close to the bottom casing 11 and the seed metering tray 4 close to the cover 12; all three are fitted together. The main shaft 6 passes through the outer casing 1 and is rotatably connected to it. The main shaft 6 also passes through the flywheel 2, partition 3, and seed metering tray 4. The flywheel 2 and seed metering tray 4 are coaxially fixedly connected to the main shaft 6 and rotate with it; the partition 3 is fixedly connected to the bottom casing 11. The seed metering tray 4 has multiple seed scoops 41, and the space between the seed scoops 41 and the partition 3 is used to store seeds. To further facilitate seed entry into the seed scoops 41 and increase space, the partition 3 has annular grooves 31 corresponding to the seed scoops 41 to increase the space between the seed scoops 41 and the partition 3. Multiple seed slots 21 are provided on the flywheel 2. The space between the seeding plate and the partition 3 is also used to store seeds. The number of seed slots 21 can be more than the number of seed scoops 41, but the seed slots 21 must correspond to at least one seed scoop 41, that is, the seed slots 21 and seed scoops 41 are spatially opposite each other. In fact, the seed tray 4 is replaceable, and different seed trays may have different seed scoop 41 configurations. The purpose of providing more seed slots 21 on the flywheel 2 is mainly to improve adaptability. A seed drop port 32 is provided on the partition 3. After the partition 3 is installed, the seed drop port 32 is located on the upper part of the partition 3. Multiple arrayed positioning holes 121 are provided on the bottom shell 11. The partition 3 is connected to the positioning holes 121 by bolts. By connecting different positioning holes 121, the position of the partition 3 can be changed, thereby changing the position of the seed drop port 32.

[0032] In the process of seed metering, seeds are first added into the outer shell 1 through the inlet. When the seed metering disc 4 rotates and the seed scoop 41 rotates to the bottom, the seeds will enter the seed scoop 41 and move with the seed scoop 41. When the seed scoop 41 corresponds to the area of ​​the seed drop outlet 32, the seeds will fall from the seed scoop 41 into the seed trough 21 and rotate with the flywheel 2. When the seed trough 21 corresponds to the outlet, the seeds will fall from the outlet, completing the seed metering operation.

[0033] Since the structure of the equipment needs to meet the requirements of the planting method, under the requirement of a triangular planting method, the seed spoons 41 are set in groups of three, and two groups are set up, wherein the included angles of two adjacent seed spoons 41 are α and β, respectively, where α < β.

[0034] Adjustment component 5 is used to adjust the distance between seed metering disc 4 and partition 3. Adjustment component 5 includes spring 53, clamping member 51, clamping nut 54, and adjusting member 52. Spring 53 is sleeved on main shaft 6 and passes through partition 3, with both ends of spring 53 abutting against flywheel 2 and seed metering disc 4, respectively. Clamping nut 54 is threaded to the end of main shaft 6 and presses down clamping member 51, which in turn presses down seed metering disc 4 via adjusting member 52.

[0035] The adjusting member 52 has three sloping bosses 521 with inclined surfaces on its surface facing the clamping member 51. The clamping member 51 has three pads 511 corresponding to the sloping bosses 521 on its surface facing the adjusting member 52. The pads 511 are supported on the sloping bosses 521. Different support positions will affect the distance between the adjusting member 52 and the clamping member 51. Therefore, when the adjusting member 52 and the clamping member 51 rotate relative to each other, the distance between them will change. However, since the position of the clamping nut 54 is fixed, it forces the adjusting member 52 to push the seed metering disc 4 to move towards the partition plate 3, thereby changing the distance between the partition plate 3 and the seed metering disc 4. To fix the position of the adjusting member 52, a fixing groove 524 is provided on the side of the adjusting member 52, and a fixing protrusion 42 adapted to the fixing groove 524 is provided on the seed metering disc 4. When the fixing protrusion 42 is engaged in the fixing groove 524, the rotation of the adjusting member 52 can be restricted, that is, the adjusting member 52 and the seed metering disc 4 are relatively fixed. At this time, rotating the clamping member 51 can change the distance between the clamping member 51 and the adjusting member 52. To restrict the relative rotation of the clamping member 51 and the adjusting member 52, on the one hand, multiple limiting grooves 522 are provided on the side of the adjusting member 52, and the clamping member 51 is provided with limiting protrusions 512. When the limiting protrusions 512 are located in the limiting grooves 522, the rotation range of the clamping member 51 can be restricted. On the other hand, multiple positioning grooves 523 are provided on the side of the adjusting member 52, and the clamping member 51 is hinged to a swing member 513 for engaging in the positioning grooves 523. A torsion spring 514 is provided on the clamping member 51. One end of the torsion spring 514 is fixed to the clamping member 51, and the other end of the torsion spring 514 is fixed to the swing member 513. When the swing member 513 is engaged in the positioning groove 523, the clamping member 51 and the adjusting member 52 cannot rotate relative to each other. Different positioning grooves 523 determine the relative angle between the clamping member 51 and the adjusting member 52, thereby affecting the distance between them and achieving the adjustment effect.

[0036] When adjustment is needed, press the swing member 513 and disengage it from the positioning groove 523. Then, rotate the clamping member 51. After the swing member 513 is aligned with other positioning grooves 523, release the swing member 513. Under the action of the torsion spring 514, the swing member 513 can be re-engaged into the torsion spring 514.

[0037] In practical applications, the clamping nut 54 presses down on the clamping member 51. The position of the clamping nut 54 determines the position reference of the clamping member 51, thus achieving a coarse adjustment. Once the position of the clamping nut 54 is determined, the relative angle between the clamping member 51 and the adjusting member 52 is adjusted according to actual needs. Since the position of the clamping nut 54 is already determined, changing the distance between the adjusting member 52 and the clamping member 51 will affect the length of the spring 53 and the distance between the seed metering disc 4 and the partition 3, thus achieving a fine adjustment.

[0038] Without the adjusting component 5, the seed metering disc 4 can only be positioned by being tightly pressed against the partition 3. This causes wear to the seed metering disc 4 during rotation, affecting its service life. Furthermore, when significant gaps appear due to wear, the nuts used to restrain the seed metering disc 4 can easily loosen. With the adjusting component 5, the spring 53 exerts an outward force on the seed metering disc 4. This force does not require the partition 3. Coarse and fine adjustments are then used to accurately control the relative position of the seed metering disc 4 and the partition 3, achieving a state of partial contact and minimizing wear.

[0039] In addition, the outer casing 1 is rotatably connected to a drive shaft 7. During sowing operations, the outer casing 1 is fixed to the agricultural machinery, and the power transmitted by the machinery's ground wheels is transmitted to the drive shaft 7 through the transmission system, and then to the main shaft 6 through sprockets and chains. The chain is not shown in the attached diagram.

[0040] Example 2

[0041] See Figure 9 This embodiment includes the two seeding units and one main shaft 6 as in Embodiment 1. The main shaft 6 is a symmetrical axis, and the two seeding units are also symmetrically arranged. The connection method between the main shaft 6 and the seeding units is completely consistent with that in Embodiment 1. This embodiment has all the technical effects of Embodiment 1. At the same time, by staggering the seeding discs 4 in the two seeding units, a triangular planting pattern can also be achieved.

[0042] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0043] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0046] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A seed-dispensing body with a spoon wheel, characterized in that: Includes the main shaft and seeding unit; The seed metering unit includes a housing, a flywheel, a partition, and a seed metering disc; The flywheel, the partition, and the seed metering disc are disposed inside the outer casing. The partition is fixedly connected to the outer casing, and the flywheel and the seed metering disc are coaxially fixedly connected to the main shaft. The main shaft passes through the housing and is rotatably connected to the housing; The seed metering tray is equipped with multiple seed scoops; The flywheel is provided with multiple seed slots, and each seed slot corresponds to at least one seed spoon; The partition is provided with a seed drop opening for the seeds to fall into the seed trough; It also includes an adjustment component for adjusting the distance between the seeding disc and the partition.

2. The seed-dispensing body according to claim 1, characterized in that, The device includes an adjustment assembly, which comprises a spring, a clamping element, a clamping nut, and an adjusting element. The spring is sleeved on the main shaft, and its two ends abut against the flywheel and the seed metering disc, respectively. The clamping nut is threaded to the end of the main shaft and presses against the clamping element, and the clamping element presses against the seed metering disc through the adjusting element.

3. The seed-dispensing body according to claim 2, characterized in that, The adjusting member has at least two ramp bosses with inclined surfaces on its surface facing the clamping member; the clamping member has pads corresponding to the ramp bosses on its surface facing the adjusting member.

4. The seed-dispensing body according to claim 2, characterized in that, The adjusting member has a limiting groove on its side, and the clamping member has a protrusion located in the limiting groove.

5. The seed-dispensing body according to claim 2, characterized in that, The side of the adjusting member is provided with several positioning grooves; the clamping member is hinged to the swing arm member for engaging the positioning grooves.

6. The seed-dispensing body according to claim 5, characterized in that, A torsion spring is mounted on the clamping member, with one end of the torsion spring fixed to the clamping member and the other end of the torsion spring fixed to the swing arm member.

7. The seed-dispensing body according to claim 1, characterized in that, The partition is provided with an annular groove opposite to the seed spoon to increase the space for accommodating seeds.

8. The seed-dispensing body according to claim 1, characterized in that, The outer casing is provided with a plurality of positioning holes arranged in an array, which are used to connect the partition to adjust the position of the partition.

9. The seed-dispensing body according to claim 1, characterized in that, The seed spoons are grouped into sets of three, with the included angles between two adjacent seed spoons being α and β, respectively, where α < β.

10. A linked double-machine seeding system, characterized in that, It includes a main shaft and two seeding units as described in any one of claims 1-9, wherein the two seeding units are symmetrically arranged and the main shaft passes through both seeding units simultaneously.

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