Rotary seed falling mechanism capable of switching seeding forms and agricultural machine comprising same

Abstract

The utility model relates to the technical field of agricultural equipment, in particular to a rotary seed falling mechanism capable of switching seeding forms and an agricultural machine comprising the mechanism, the mechanism comprises a seed falling drum, a small groove area and a through groove area are arranged along the axial direction, the small groove area is uniformly provided with a plurality of small grooves on the peripheral surface of the seed falling drum, and the through groove area is provided with an annular groove on the peripheral surface of the seed falling drum; the housing wraps the outside of the seed falling drum, and a feed port and a discharge port are respectively formed in the upper end and the lower end of the housing; the driving mechanism is used for driving the seed falling drum to rotate, so that the seeds fall through the small groove area; and the crank connecting rod mechanism is used for driving the housing to translate, so that the through groove area is communicated with the feeding hole or staggered from the feeding hole. According to the utility model, by accurately controlling the rotation of the seed falling drum and the translation of the housing, the seed falling channels can be quickly and effectively switched, so that various seeding modes such as broadcast seeding, dibble seeding and row seeding are realized, the seeding requirements of different crops are met, and the applicability and the flexibility of the seeding machinery are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, in particular to a rotary seeding mechanism capable of switching sowing modes and an agricultural machine comprising the mechanism. Background Art

[0002] In modern agricultural production, sowing is one of the most important links. Traditional sowing methods are mostly manual or semi-mechanized operations. These methods are not only labor-intensive and inefficient, but also difficult to ensure the uniformity and accuracy of sowing. With the development of agricultural modernization, automated and intelligent sowing equipment has gradually become a hot spot for research and application. The application of small intelligent agricultural machinery has the advantages of automation and efficiency. They can achieve precise sowing, fertilization, irrigation, spraying and other operations, greatly improving agricultural production efficiency.

[0003] Although the small-scale intelligent agricultural machinery currently on the market has improved seeding efficiency and accuracy to a certain extent, most of them can only achieve a single seeding mode, such as broadcasting or spot seeding, and cannot flexibly switch the seeding mode according to crop planting needs. When the seeding mode needs to be changed, it is often necessary to manually adjust the mechanical structure or replace parts, which not only increases the complexity of operation, but also reduces the efficiency of operation. Utility Model Content

[0004] One of the purposes of the present invention is to solve the problems in the above-mentioned background technology and to provide a rotary seed placement mechanism capable of switching seeding modes.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solution: a rotary seeding mechanism capable of switching sowing modes, comprising:

[0006] The seeding drum is provided with a small groove area and a through groove area along the axial direction, wherein the small groove area is provided with a plurality of small grooves evenly distributed on the outer peripheral surface of the seeding drum, and the through groove area is provided with an annular groove on the outer peripheral surface of the seeding drum;

[0007] The cover shell is wrapped around the outside of the seed dropping drum and is provided with a material inlet and a material outlet at the upper and lower ends respectively;

[0008] A driving mechanism is used to drive the seed dropping drum to rotate so that the seeds are dropped through the small groove area;

[0009] The crank-connecting rod mechanism is used to drive the cover shell to translate so that the through groove area is connected to the feed inlet or is staggered with the feed inlet.

[0010] Preferably, the driving mechanism includes a motor and a main shaft transmission connected to the motor, the seed dropping drum is connected to the main shaft through a one-way bearing transmission, when the main shaft rotates forward, the seed dropping drum rotates, when the main shaft reverses, the seed dropping drum does not rotate; the main shaft is connected to a pulley through a one-way bearing transmission, the pulley is connected to a crank-connecting rod mechanism, when the main shaft rotates forward, the pulley does not rotate, when the main shaft reverses, the pulley rotates, and thus can drive the crank-connecting rod mechanism to work.

[0011] More preferably, the crank-connecting rod mechanism includes a driven wheel connected to a pulley transmission, the top end of the driven wheel is fixedly connected to a top plate, an eccentric position of the top plate is hinged with a connecting rod, one end of the connecting rod is connected to a movable plate, the movable plate is fixedly connected to the cover shell, and the connecting rod can drive the movable plate to translate, thereby moving the cover shell.

[0012] More preferably, a flexible sponge for wrapping the front and rear sides of the seed dropping drum is further provided in the cover shell.

[0013] More preferably, a central tube for connecting the main shaft is provided at the center of the seeding drum, and the outer wall surface of the central tube is fixedly connected to the inner wall surface of the seeding drum through a plurality of connecting ribs.

[0014] More preferably, it also includes an auxiliary switching mechanism, which includes an auxiliary power mechanism and a screw rod transmission connected to the auxiliary power mechanism, and two blanking barrels are fixedly connected to the screw rod. When the auxiliary power mechanism drives the screw rod to rotate, the top end of any blanking barrel can be connected to the discharge port at the bottom of the cover shell.

[0015] In addition, the utility model also provides an agricultural machine, which is provided with the above-mentioned rotary seed dropping mechanism capable of switching seeding forms, and different seed dropping barrels are connected to different seeding pipelines.

[0016] Preferably, two blanking drums are arranged on the main shaft, and the movable plate is fixedly connected to two cover shells.

[0017] Compared with the prior art, the utility model can quickly and effectively switch the seed drop channel by precisely controlling the rotation of the seed drop drum and the translation of the cover shell, thereby realizing various sowing modes such as broadcast sowing, spot sowing and row sowing, adapting to the sowing needs of different crops, improving the applicability and flexibility of the sowing machinery, and requiring no replacement of parts and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the utility model;

[0019] Figure 2 In the embodiment;

[0020] Figure 3 In the embodiment.

[0021] In the figure:

[0022] 1——seed drop drum 2——small groove 3——annular groove

[0023] 4——Cover 5——Motor 6——Spindle

[0024] 1a——Center tube 1b——Connecting rib

[0025] 7——Pulley 8——Driven wheel 9——Connecting rod

[0026] 10——Moving plate 11——Flexible sponge 12——Screw rod

[0027] 13——Blanking barrel. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0029] It should be noted in advance that, in the present utility model, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. In addition, in the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature can include the first and second features directly contacting, and can also include the first and second features not being in direct contact but contacting through another feature between them.

[0030] like Figures 1 to 3 As shown, the rotary seed placement mechanism capable of switching the sowing mode comprises:

[0031] The seeding drum 1 is provided with a small groove area and a through groove area along the axial direction. The small groove area is provided with a plurality of small grooves 2 evenly distributed on the outer circumference of the seeding drum 1, and the through groove area is provided with an annular groove 3 on the outer circumference of the seeding drum 1;

[0032] The cover 4 is wrapped around the outside of the seed dropping drum 1 and is provided with a feed inlet and a feed outlet at the upper and lower ends respectively;

[0033] A driving mechanism, used for driving the seed dropping drum 1 to rotate so that the seeds are dropped through the small groove area;

[0034] The crank-connecting rod mechanism is used to drive the cover shell 4 to translate so that the through groove area is connected to the feed inlet or is staggered with the feed inlet.

[0035] In the above structure, the driving mechanism includes a motor 5 and a main shaft 6 connected to the motor; the seeding drum 1 is connected to the main shaft 6 via a one-way bearing; when the main shaft 6 rotates forward, the seeding drum 1 rotates; when the main shaft 6 rotates reversely, the seeding drum 1 does not rotate; the main shaft 6 is connected to a pulley 7 via a one-way bearing; the pulley 7 is connected to a crank-connecting rod mechanism; when the main shaft 1 rotates forward, the pulley 7 does not rotate; when the main shaft 6 rotates reversely, the pulley 7 rotates, thereby driving the crank-connecting rod mechanism to work.

[0036] The crank-connecting rod mechanism includes a driven wheel 8 that is transmission-connected to the pulley 7. The top of the driven wheel 8 is fixedly connected to a top plate. A connecting rod 9 is hinged at an eccentric position of the top plate. One end of the connecting rod 9 is connected to a moving plate 10. The moving plate 10 is fixedly connected to the cover 4. The connecting rod 9 can drive the moving plate 10 to translate, thereby moving the cover 4. Those skilled in the art should know that there are many transmission methods between the driven wheel 8 and the pulley 7. For example, the driven wheel 8 can be mounted on a support plate, and a pulley with a helical gear parallel to the pulley 7 is set on the support plate as a power transition mechanism, and then helical teeth are set on the driven wheel 8 to mesh with it to achieve power transmission.

[0037] In this embodiment, a flexible sponge 11 is further provided in the cover shell 4 for wrapping the front and rear sides of the seed dropping drum 1, which plays a certain protective role on the seeds and can prevent the seeds from being easily crushed.

[0038] A central tube 1a for connecting the main shaft 6 is provided at the center of the seeding drum 1, and the outer wall surface of the central tube 1a is fixedly connected to the inner wall surface of the seeding drum 1 through a plurality of connecting ribs 1b.

[0039] In addition, the structure of this embodiment also includes an auxiliary switching mechanism, which includes an auxiliary power mechanism and a screw rod 12 transmission-connected to the auxiliary power mechanism. Two blanking barrels 13 are fixedly connected to the screw rod 12. When the auxiliary power mechanism drives the screw rod 12 to rotate, the top end of any blanking barrel 13 can be connected to the discharge port at the bottom of the cover shell 4.

[0040] When the rotary seed dropping mechanism with switchable sowing forms provided in the above-mentioned embodiment is applied to agricultural machinery, different drop barrels 13 can be connected to different sowing pipelines. Preferably, two drop barrels 1 are provided on the main shaft 6, and the movable plate 10 is fixedly connected to the two cover shells 4. When the agricultural machinery is working, firstly, the seeds or fertilizers are loaded into the storage box of the agricultural machinery. The outlet at the bottom of the storage box is connected to the drop opening of the cover shell 4. According to the sowing requirements, the appropriate sowing mode (broadcasting, spot sowing or row sowing) is selected. Start the motor 5, and the motor 5 will rotate forward or reverse according to the selected sowing mode. When the main shaft 6 rotates forward, the one-way bearing transmission causes the drop barrel 1 to rotate accordingly, and the seeds fall evenly through the small groove area to achieve broadcasting or spot sowing. When the main shaft 6 is reversed, the seed drop drum 1 does not rotate, but the translation of the cover shell 4 is achieved through the cooperation of the pulley 7 and the crank connecting rod mechanism. When the translation reaches the point where the feed port is connected with the through groove area, the rotation of the motor 5 is stopped immediately, so that the cover shell 4 remains in this position. The seeds fall into the annular groove 3 in the through groove area and continue to fall directly downward, forming a larger normally open seed drop channel to achieve continuous sowing. When the cover shell 4 is staggered with the feed port, the through groove area is closed to achieve spot sowing or row sowing. If it is necessary to replace the sowing material or change the sowing pipeline, operate the auxiliary switching mechanism, drive the screw 12 to rotate through the auxiliary power mechanism, and connect the top of the corresponding drop barrel 13 with the discharge port. During the sowing process, the motor speed can be adjusted in time according to the actual sowing situation to control the sowing speed and sowing amount.

[0041] Through the above-mentioned working process, the rotary seed dropping mechanism of the utility model can realize efficient, accurate and flexible seeding operations, and meet the needs of modern agriculture for seeding equipment.

[0042] In order to make it easier for ordinary technicians in this field to understand the improvements of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and the above-mentioned embodiments are better implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A rotary seeding mechanism with switchable sowing modes, characterized in that: include: A seed dropping rotary drum (1) is provided with a small groove area and a through groove area arranged in an axial direction, wherein the small groove area is provided with a plurality of small grooves (2) evenly distributed on the outer peripheral surface of the seed dropping rotary drum (1), and the through groove area is provided with an annular groove (3) on the outer peripheral surface of the seed dropping rotary drum (1); A cover shell (4) is wrapped around the outside of the seed dropping drum (1) and is provided with a material inlet and a material outlet at the upper and lower ends respectively; A driving mechanism, used for driving the seed dropping rotating drum (1) to rotate so that the seeds are dropped through the small groove area; The crank connecting rod mechanism is used to drive the cover shell (4) to translate so that the through groove area is connected to the feed inlet or is offset from the feed inlet.

2. The rotary seed placement mechanism with switchable sowing modes according to claim 1 is characterized in that: The driving mechanism comprises a motor (5) and a main shaft (6) drivingly connected to the motor; the seed dropping drum (1) is connected to the main shaft (6) via a one-way bearing; when the main shaft (6) rotates forward, the seed dropping drum (1) rotates; when the main shaft (6) rotates reversely, the seed dropping drum (1) does not rotate; the main shaft (6) is connected to a pulley (7) via a one-way bearing; the pulley (7) is connected to a crank-connecting rod mechanism; when the main shaft (6) rotates forward, the pulley (7) does not rotate; when the main shaft (6) rotates reversely, the pulley (7) rotates, thereby driving the crank-connecting rod mechanism to work.

3. The rotary seed placement mechanism with switchable sowing modes according to claim 2 is characterized in that: The crank-connecting rod mechanism comprises a driven wheel (8) which is transmission-connected to a pulley (7); a top plate is fixedly connected to the top of the driven wheel (8); a connecting rod (9) is hingedly connected to an eccentric position of the top plate; one end of the connecting rod (9) is connected to a movable plate (10); the movable plate (10) is fixedly connected to the cover shell (4); the connecting rod (9) can drive the movable plate (10) to translate, thereby moving the cover shell (4).

4. The rotary seed placement mechanism with switchable sowing modes according to claim 3 is characterized in that: A flexible sponge (11) is also provided in the cover shell (4) for wrapping the front and rear sides of the seed dropping drum (1).

5. The rotary seed placement mechanism with switchable sowing modes according to claim 4 is characterized in that: A central tube (1a) for connecting to a main shaft (6) is provided at the center of the seed dropping drum (1), and an outer wall surface of the central tube (1a) is fixedly connected to an inner wall surface of the seed dropping drum (1) via a plurality of connecting ribs (1b).

6. The rotary seed placement mechanism with switchable sowing modes according to claim 5, characterized in that: The auxiliary switching mechanism also includes an auxiliary power mechanism and a screw rod (12) drivingly connected to the auxiliary power mechanism. Two blanking barrels (13) are fixedly connected to the screw rod (12). When the auxiliary power mechanism drives the screw rod (12) to rotate, the top end of any blanking barrel (13) can be connected to the discharge port at the bottom of the cover shell (4).

7. An agricultural machine, characterized in that: A rotary seed dropping mechanism capable of switching sowing modes as claimed in claim 6 is provided, and different seed dropping barrels (13) are connected to different sowing pipelines.

8. The agricultural machine according to claim 7, characterized in that: Two blanking drums (1) are arranged on the main shaft (6), and the movable plate (10) is fixedly connected to the two cover shells (4).

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