Drum-type seeder

Abstract

The utility model discloses a drum-type seeder, which relates to the technical field of seeders and comprises a machine body, a seeding drum, a fan and a driving device, after air flow is generated by the fan, the air flow is divided into two parts by the flow divider in the machine body, one part of main air flow penetrates through the seeding roller to overflow and blows seeds to the low-pressure hole of the seeding roller, the other part of air flow is used for blowing out the seeds, and the shielding assembly in the seeding roller can remove the air pressure of the low-pressure hole. According to the selection of a planting method, the distribution form of the low-pressure holes can be correspondingly arranged on the seeding roller, so that the actual seed distribution condition in the field fits a theoretical model of the planting method.

Description

Technical Field

[0001] The utility model belongs to the technical field of seed drills, in particular to a drum seed drill. Background Art

[0002] With the popularization of modern agriculture and scientific agriculture concepts, more and more efficient and high-yield planting methods are being used. At present, for corn planting, one of the triangular planting methods, or the double triangle planting method improved on this basis, has a good planting effect, which can bring better ventilation and light transmission conditions, laying a solid foundation for high corn yields.

[0003] At present, all planting methods need to rely on seeders. The most common seeders are air-suction type, and there are also some spoon-clip type, finger-clip type and other seeders. The above seeders are all single-disc structures. Usually, a single disc only corresponds to one or two sowing rows. Multiple seeders need to be set in parallel during cultivation. However, in the actual working process, the initial position of the sowing mechanism in each seeder is difficult to accurately adjust, so that the actual distribution of seeds in the field will deviate from the theoretical model. To this end, a solution is proposed to make the actual sowing distribution fit the theoretical model and ensure the accurate implementation of the planting method.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to solve the problem that the current seeder is limited to a single disk, and it is difficult to accurately adjust the initial position of the sowing mechanism when each seeder operates synchronously, so that the actual distribution of seeds in the field deviates from the theoretical model. A drum seeder is provided, including a body, a sowing drum, a fan and a driving device;

[0006] A working space is provided in the machine body;

[0007] The machine body includes a flow divider, a partition and a plurality of second pipe joints;

[0008] The flow splitter is connected to the air duct and has an air duct opening, and the flow splitter is configured to be connected to a fan and to divide the wind blown out of the fan into two parts and blown out from the air duct and the air duct opening;

[0009] The partition, the air guide pipe and the air guide port are located in the working space; the air guide pipe passes through the partition, and the partition is provided with a plurality of air holes;

[0010] The sowing drum and the diverter are located on both sides of the partition; the sowing drum passes through the working space;

[0011] The seeding drum comprises a drum body, an end cover, a support shaft, at least two rotating discs and a plurality of shielding components; the drum body is provided with a plurality of groups of low-pressure holes; the rotating disc is arranged in the drum body and is fixedly connected to the drum body; the support shaft passes through the two rotating discs and the end cover, and is fixedly connected to the end cover through a connecting piece; the end cover is fixedly connected to the machine body;

[0012] The shielding assembly is located in the drum body and is used to shield the low-pressure hole at the top of the drum body;

[0013] The end cover and the two rotating disks are both hollow structures;

[0014] The driving device is used to drive the adjacent rotating disks to rotate;

[0015] The air hole is located below the sowing drum, and the air guide pipe and the second pipe joint are located above the sowing drum;

[0016] The second pipe joint is used to allow the seeds to be discharged along the air flow.

[0017] In one embodiment of the present invention, in the circumferential direction of the drum body, a plurality of groups of low-pressure holes are equidistantly arranged to form distribution rows; and in the axial direction of the drum body, a plurality of distribution rows are provided.

[0018] In one implementation of the present invention, on two adjacent distribution rows, two adjacent groups of low-pressure holes are staggered.

[0019] In one embodiment of the present invention, each group is provided with three low-pressure holes, and the positions of the three low-pressure holes are distributed according to the position relationship of the corner points of an equilateral triangle.

[0020] In one embodiment of the present invention, within one distribution row, the plurality of low-pressure holes form only two rows.

[0021] In one embodiment of the present invention, each group is provided with at least three low-pressure holes, and the positions of the negative-pressure holes are arranged equidistantly along the circumferential direction of the drum body.

[0022] In one embodiment of the utility model, the shielding assembly includes a base, a spring telescopic rod and a roller; the base is fixed to the support shaft, the base is fixedly connected to the two spring telescopic rods, the other end of the spring telescopic rod is installed with the roller, the spring telescopic rod is used to make the roller close to the inner wall of the drum body, and the roller is used to shield the low-pressure hole during the rotation of the drum body; the shielding assembly is arranged upward so that the roller can shield the low-pressure hole located above.

[0023] In one embodiment of the utility model, the partition includes an upper plate and a lower plate, the air guide pipe passes through the upper plate, and the air hole is located in the lower plate; the lower plate is inclined, and the plane normal of the lower plate points to the sowing drum;

[0024] Each of the second pipe joints is opposite to each row of the low-pressure holes.

[0025] Compared with the prior art, the technical effects achieved by the utility model are as follows:

[0026] (1) The order of seed sowing is completely determined by the position of the low-pressure holes on the drum body, without any adjustment. Therefore, under the condition of a given driving speed of the agricultural machinery, the distribution of seeds sown in the field can fit the theoretical model of the double triangle planting method and achieve the best high-yield effect.

[0027] (2) The number of distribution rows on the drum body can be increased according to the needs of use, so that one seeder can achieve multi-row sowing. Compared with the existing form of operating a tractor with more than a dozen seeders, the installation structure is obviously simpler and only needs to be installed through two support plates. At the same time, the subsequent maintenance work is also more convenient.

[0028] (3) Since only low-pressure holes need to be opened on the drum body without other mechanical structures, the spacing between the low-pressure holes can be minimized to the greatest extent, thereby increasing the tractor's driving speed and the daily sowing area.

[0029] (4) Since the seeds fly out along the airflow from the air guide tube to the second pipe joint, the working process of broadcasting is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an isometric view of the embodiment 1 of the utility model at a viewing angle;

[0031] Figure 2 It is an isometric view of Embodiment 1 of the utility model in another viewing angle;

[0032] Figure 3 It is an exploded view of the machine body in Embodiment 1 of the present utility model;

[0033] Figure 4 It is a partial enlarged view of the diverter and the partition in Example 1 of the utility model;

[0034] Figure 5 It is a half-section view of the machine body in Embodiment 1 of the present utility model;

[0035] Figure 6 It is an isometric view of the seeding drum in Embodiment 1 of the present utility model;

[0036] Figure 7 It is an exploded view of the seeding drum in Embodiment 1 of the present utility model;

[0037] Figure 8 It is a structural schematic diagram of the shielding assembly in Example 1 of the utility model;

[0038] Fig. 9 This is a schematic diagram of seed planting distribution based on the planting mode implemented in Example 1 of the utility model;

[0039] Fig.10 It is an isometric view of the seeding drum in Embodiment 2 of the present utility model;

[0040] Fig.11 It is a schematic diagram of seed planting distribution based on the planting pattern implemented in Example 2 of the present utility model.

[0041] Description of main reference numerals:

[0042] 1. Machine body; 11. Front plate; 12. Second pipe joint; 13. Bottom plate; 14. Top plate; 15. Seed box; 16. Side plate; 161. Mounting port; 17. Diverter; 171. Diverter tube; 172. Support plate; 173. Air duct; 174. Air port; 175. First pipe joint; 18. Partition; 181. Upper plate; 182. Lower plate; 183. Air hole; 19. Mounting seat; 2. Seeding drum; 21. Drum body; 211. Low-pressure hole; 22. End cover; 23. Support shaft; 24. Turntable; 25. Connector; 26. Shielding assembly; 261. Base; 262. Spring telescopic rod; 263. Roller; 3. Pulley. DETAILED DESCRIPTION

[0043] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0044] The technical solution of the present utility model is described below through specific embodiments. It should be understood that one or more steps mentioned in the present utility model do not exclude the existence of other methods and steps before and after the combination step, or other methods and steps can be inserted between these explicitly mentioned steps. It should also be understood that these examples are only used to illustrate the present utility model and are not used to limit the scope of the present utility model. Unless otherwise specified, the numbering of each method step is only for the purpose of identifying each method step, and does not limit the order of arrangement of each method or limit the scope of implementation of the present utility model. Changes or adjustments in their relative relationships can also be regarded as the scope of implementation of the present utility model without substantial changes in the technical content.

[0045] The sources of the raw materials and instruments used in the examples are not particularly limited and can be purchased from the market or prepared according to conventional methods known to those skilled in the art.

[0046] Example 1

[0047] like Figure 1 to Figure 2 As shown, a drum seeder according to a preferred embodiment of the utility model includes a machine body, a seeding drum, a fan and a driving device.

[0048] The machine body comprises a front plate, a top plate, a bottom plate, a partition plate, two side plates, a seed box and a diverter.

[0049] The flow divider includes a horizontally placed cylindrical flow divider. Both ends of the flow divider are fixedly connected to the support plate. An air guide port is provided on the side wall of the flow divider, and a plurality of air guide pipes are connected to the side wall of the flow divider. The air guide pipes are arranged horizontally and are located above the air guide port. The air guide pipes are connected to the interior of the flow divider, and the total area of ​​the pipe ports of the plurality of air guide pipes is smaller than the area of ​​the air guide port.

[0050] The top plate is fixedly connected to the two side plates, the front plate and the top of the diverter tube at the same time; the bottom plate is fixedly connected to the two side plates, the front plate and the bottom of the diverter tube at the same time; the front plate is fixedly connected to the two side plates, the top plate and the bottom plate at the same time. Thus, the front plate, the top plate, the bottom plate, the two side plates and the diverter tube together surround a working space. The entire machine body can be fixedly connected to other agricultural machinery and equipment through the support plate.

[0051] The air guide port and the air guide pipe are both located in the working space. In addition, a first pipe joint is also provided on the side wall of the diverter tube. The first pipe joint is located outside the working space and is used to connect to the fan through a pipeline. When the fan is running, the wind can be discharged from the air guide pipe and the air guide port, and the amount of wind discharged from the air guide port is large. The fan can be selected from conventional existing products, so the fan is not shown in the attached figure.

[0052] The partition is arranged in the working space, and the partition is fixedly connected to the top plate, the bottom plate and the two side plates at the same time. The partition divides the working space into two parts, and the diverter and the seeding drum are respectively located on both sides of the partition. The air duct runs through the partition. The partition is provided with a plurality of air holes, and the air holes are located below the air duct. Furthermore, the partition is divided into an upper plate body and a lower plate body. The air duct passes through the upper plate body, and the air holes are all located in the lower plate body. At the same time, the lower plate body is tilted so that its plane normal points to the seeding drum.

[0053] The two side plates are provided with circular mounting openings which are opened opposite to each other, and the seeding drum passes through the working space and is located in the two mounting openings.

[0054] The seeding drum includes a drum body, an end cover, a support shaft, a connector and two turntables. The drum body fits with the two mounting ports. The two turntables are located in the drum body, coaxially arranged with the drum body, and respectively located at the two ends of the drum body, and the turntables fit with the inner wall of the drum body and are relatively fixed. The turntable and the drum body can be fixed in conventional ways such as rivet connection, bonding or connection through a slot. The support shaft runs through the center of the two turntables and is rotatably connected with the turntables. The end cover fits with the barrel opening at one end of the drum body. The support shaft runs through the center of the end cover and is fixedly connected to the connector. Specifically, the connector is fixedly connected to the end cover by bolts, and the connector is connected to the support shaft by a flat key structure to limit circumferential rotation. Further, the connector is connected to the support shaft by a latch to limit axial movement. Therefore, the end cover, the connector and the support shaft are connected as one. Furthermore, the end cover is fixedly connected to the side plate of the body, so the drum body can rotate relative to the body, while the end cover and the rotating shaft cannot rotate. It should also be noted that the end cover and the two turntables are both hollow structures.

[0055] Several groups of low-pressure holes are arranged on the side wall of the drum body. Each group has three low-pressure holes, and the positions of the three low-pressure holes are distributed according to the position relationship of the corner points of an equilateral triangle, which is equivalent to being at the three corner points of an equilateral triangle. In the circumferential direction of the drum body, multiple groups of low-pressure holes are equidistantly arranged to form a distribution row, and in a distribution row, many low-pressure holes form only two rows. In the axial direction of the drum body, multiple distribution rows are set. However, in two adjacent distribution rows, the two adjacent groups of low-pressure holes are staggered, or in other words, the two adjacent groups of low-pressure holes do not correspond to each other in the axial direction. If the low-pressure holes are arranged in this distribution method and the seeds are sown in the field, the distribution method of the seeds is as follows: Figure 8 As shown. The specific implementation process of sowing is referred to the following content. The dotted straight line represents the center line of the ridge, and the two dotted triangles represent the equilateral triangle distribution form formed by a group of low-pressure holes, and the equilateral triangle distribution form formed by three groups of low-pressure holes on two adjacent distribution rows, that is, the double triangle planting method is realized.

[0056] The above-mentioned arrangement of low-pressure holes is only for realizing the double triangle planting method. However, the arrangement of low-pressure holes should not be limited to this one, but can be adaptively adjusted according to the needs of the planting method.

[0057] Furthermore, a plurality of shielding assemblies are provided in the drum body. Each shielding assembly corresponds to a distribution row. The shielding assembly includes a base, which is sleeved on the support shaft and fixedly connected. Two spring telescopic rods are fixedly connected to the base. A roller is installed at the other end of the spring telescopic rod. The spring telescopic rod makes the roller close to the inner wall of the drum body. When the drum body rotates, the roller can rotate synchronously, but since the support shaft does not rotate, the shielding assembly will not rotate either. The two rollers are used to shield the low-pressure hole during the rotation of the drum body, and the shielding assembly is arranged upward so that the roller can shield the low-pressure hole located above.

[0058] Further explanation of the machine body: The seed box is fixedly connected to the top plate. The seed box can be made of existing technology products, and whether to add seeds into the machine body is controllable. The top plate is provided with an opening corresponding to the seed box, which is used to drop seeds from the top plate into the machine body. The seeds that fall into the working space will reach the lower area of ​​the sowing drum, and the seeds will accumulate upward along the lower plate body of the partition. A plurality of second pipe joints are provided on the front plate. The number of second pipe joints is related to the number of distribution rows on the drum body. As shown in the attached figure, there are four distribution rows on the drum body, so eight second pipe joints are provided and arranged horizontally, and the second pipe joints are provided above the sowing drum. The function of the second pipe joint is, on the one hand, to connect the working space with the outside of the machine body so that the seeds can fly out from the second pipe joint; on the other hand, it is to connect the seed guide tube so that the seeds can accurately fall into the field along the seed guide tube.

[0059] In addition, since one of the side panels is connected to the end cover of the seeding drum, a mounting seat is provided on the other side panel. The mounting seat is used to install a driving device. The driving device preferably uses a motor to drive the adjacent turntable to rotate, thereby driving the drum body to rotate. The driving method can be arbitrarily selected from the existing technology. For example, a pulley is coaxially fixed on the turntable adjacent to the driving device, and the driving device can drive the turntable with the help of a belt. Various forms such as chain transmission and gear transmission can also be used. Due to the variety of transmission forms, the specific transmission structure and the corresponding drive device are not shown in the accompanying drawings. Figure 2 The figure schematically shows a pulley fixedly arranged coaxially with the turntable.

[0060] The specific implementation process of this plan is:

[0061] The fan is running and blowing air into the machine body, and the wind pressure needs to reach more than 3 Bar. The wind first enters the diverter, and part of the air flow is blown out through the air guide port, and the other part is blown out from the air guide pipe. Among them, the wind blown out through the air guide port can only be blown out from the air holes of the partition. The airflow blown out of the air holes and the air guide pipe blows to the top and bottom of the seeding drum respectively, and the airflow blown out of the air holes is greater than the airflow blown out of the air guide pipe. On the one hand, the airflow blown out of the air holes will blow up the seeds, and on the other hand, the main direction of the airflow is to enter the inside of the drum body from a large number of low-pressure holes, and then overflow from the turntables on both sides. Because the flow rate of the airflow at the low-pressure holes increases, the seeds are blown to the low-pressure holes in this process. At the same time, the drum body is driven to rotate by the driving device. When the drum body rotates, the seeds will move with the drum body. The airflow blown out of the air guide pipe mainly overflows from the second pipe joint. When the seeds rotate to the top of the drum body, the roller in the shielding assembly blocks the low-pressure hole, causing the airflow at the low-pressure hole to disappear, so that the seeds lose their restraint and fly out along the airflow from the air guide pipe to the second pipe joint. The second pipe joint can realize the sowing operation according to the use needs.

[0062] The advantages of this solution are:

[0063] (1) The order of seed sowing is completely determined by the position of the low-pressure holes on the drum body, without any adjustment. Therefore, under the condition of a given driving speed of the agricultural machinery, the distribution of seeds sown in the field can fit the theoretical model of the double triangle planting method and achieve the best high-yield effect.

[0064] (2) The number of distribution rows on the drum body can be increased according to the needs of use, so that one seeder can achieve multi-row sowing. Compared with the existing form of operating a tractor with more than a dozen seeders, the installation structure is obviously simpler and only needs to be installed through two support plates. At the same time, the subsequent maintenance work is also more convenient.

[0065] (3) Since only low-pressure holes need to be opened on the drum body without other mechanical structures, the spacing between the low-pressure holes can be minimized to the greatest extent, thereby increasing the tractor's driving speed, increasing the daily sowing area, and increasing the number of rows that can be sown by a single device.

[0066] (4) Since the seeds fly out along the airflow from the air guide tube to the second pipe joint, the working process of broadcasting is realized.

[0067] Example 2

[0068] Compared with Example 1, the only difference between this embodiment and Example 1 is that the arrangement of the low-pressure holes on the drum body in the sowing drum is different. In this embodiment, a number of groups of low-pressure holes are also provided on the drum body, and the low-pressure holes are arranged equidistantly in the circumferential direction of the drum body to form a distribution row, but a group of low-pressure holes are not located at the three corner points of an equilateral triangle, but are arranged in a straight line. The three low-pressure holes in a group are also arranged along the circumferential direction of the drum body. Furthermore, the two adjacent groups of low-pressure holes in two adjacent distribution rows are also staggered. After the low-pressure holes sow the seeds into the field according to this distribution pattern, a distribution row is formed as follows. Fig.11 The seed distribution pattern shown is a method for achieving a three-plant planting unit.

[0069] It can be seen that this embodiment aims to achieve a planting method different from that of Embodiment 1. In addition, this embodiment has all the technical effects of Embodiment 1.

[0070] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A drum seeder, characterized in that: It includes a machine body, a seeding drum, a fan and a driving device; A working space is provided in the machine body; The machine body includes a flow divider, a partition and a plurality of second pipe joints; The flow splitter is connected to the air duct and has an air duct opening, and the flow splitter is configured to be connected to a fan and to divide the wind blown out of the fan into two parts and blown out from the air duct and the air duct opening; The partition, the air guide pipe and the air guide port are located in the working space; the air guide pipe passes through the partition, and the partition is provided with a plurality of air holes; The sowing drum and the diverter are located on both sides of the partition; the sowing drum passes through the working space; The seeding drum comprises a drum body, an end cover, a support shaft, at least two rotating discs and a plurality of shielding components; the drum body is provided with a plurality of groups of low-pressure holes; the rotating disc is arranged in the drum body and is fixedly connected to the drum body; the support shaft passes through the two rotating discs and the end cover, and is fixedly connected to the end cover through a connecting piece; the end cover is fixedly connected to the machine body; The shielding assembly is located in the drum body and is used to shield the low-pressure hole at the top of the drum body; The end cover and the two rotating disks are both hollow structures; The driving device is used to drive the adjacent rotating disks to rotate; The air hole is located below the sowing drum, and the air guide pipe and the second pipe joint are located above the sowing drum; The second pipe joint is used to allow the seeds to be discharged along the air flow.

2. The drum seeder according to claim 1, characterized in that: In the circumferential direction of the drum body, a plurality of groups of low-pressure holes are arranged equidistantly to form distribution rows; in the axial direction of the drum body, a plurality of distribution rows are arranged.

3. The drum seeder according to claim 2, characterized in that: In two adjacent distribution rows, two adjacent groups of low-pressure holes are staggered.

4. The drum seeder according to claim 2, characterized in that: Each group is provided with three low-pressure holes, and the positions of the three low-pressure holes are distributed according to the position relationship of the corner points of an equilateral triangle.

5. The drum seeder according to claim 4, characterized in that: In one of the distribution rows, the plurality of low-pressure holes form only two rows.

6. The drum seeder according to claim 2, characterized in that: Each group is provided with at least three low-pressure holes, and the positions of the negative-pressure holes are arranged equidistantly along the circumferential direction of the drum body.

7. The drum seeder according to claim 1, characterized in that: The shielding assembly includes a base, a spring telescopic rod and a roller; the base is fixed to the supporting shaft, the base is fixedly connected to the two spring telescopic rods, the other end of the spring telescopic rod is installed with the roller, the spring telescopic rod is used to make the roller close to the inner wall of the drum body, and the roller is used to shield the low-pressure hole during the rotation of the drum body; the shielding assembly is arranged upward so that the roller can shield the low-pressure hole located above.

8. The drum seeder according to claim 1, characterized in that: The partition includes an upper plate body and a lower plate body, the air guide pipe passes through the upper plate body, and the air hole is located in the lower plate body; the lower plate body is inclined, and the plane normal of the lower plate body points to the sowing drum; Each of the second pipe joints is opposite to each row of the low-pressure holes.

Images