A high-raised interplanting no-tillage seeding device

Abstract

The utility model discloses a kind of overhead interplanting no-tillage seeding devices, including seed box, finger clamp type seed metering device, frame body, secondary seeding mechanism and seeding pipe, seed box, finger clamp type seed metering device, secondary seeding mechanism and seeding pipe are sequentially installed on frame body from top to bottom and sequentially intercommunicate, and finger clamp type seed metering device is connected with secondary seeding mechanism transmission connection.The utility model seed is first seeded to secondary seeding mechanism in finger clamp type seed metering device, and seed is transported to low point (within 10cm from ground) by secondary seeding mechanism and seeding pipe after being seeded secondly from high place, significantly reduce seed bounce on ground, improve the quality and efficiency of interplanting seeding.

Description

Technical Field

[0001] This utility model relates to the field of intercropping technology, specifically to an elevated intercropping no-till seeding device. Background Technology

[0002] Intercropping, which involves sowing or transplanting a subsequent crop between rows of the previous crop during the later stages of its growth, can improve land use efficiency, increase crop yields, and enhance economic benefits.

[0003] However, existing intercropping seeders are poorly adapted to intercropping operations in fields with tall, dense plants and limited working space. They typically use a raised seeding unit (frame) method, using a straight guide tube to drop seeds from a height of 70-80cm above the ground. This results in problems such as seed bouncing, unstable seed spacing and sowing depth, high missed seeding rate, and difficulty in meeting specific sowing depth and seed spacing requirements.

[0004] Therefore, providing an elevated intercropping and no-till seeding device is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides an elevated intercropping and no-till seeding device to at least solve one of the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A raised intercropping no-till seeding device includes a seed box, a finger-clamp seed metering device, and a frame. It also includes a secondary seeding mechanism and a seeding tube. The seed box, the finger-clamp seed metering device, the secondary seeding mechanism, and the seeding tube are installed on the frame from top to bottom and are connected in sequence. The finger-clamp seed metering device is drivenly connected to the secondary seeding mechanism.

[0007] By adopting the above technical solutions, this utility model has the following beneficial effects: The seeds are first sown into the secondary sowing mechanism via a finger-clamp seed metering device. The secondary sowing mechanism and seeding tube transport the seeds from a high point to a low point (within 10cm above the ground) for a second sowing. This significantly reduces seed bounce upon landing and improves the quality and efficiency of sowing during intercropping.

[0008] Furthermore, the secondary seeding mechanism includes a front housing, a rear housing, a drive wheel, a driven shaft, a driven wheel, a conveyor belt, and multiple blades. The front housing is located on the front side of the finger-clamp seed meterer, and the upper part of the front housing is installed between the inner seed chamber cover and the seed metering clamp of the finger-clamp seed meterer. The rear housing is located on the rear side of the finger-clamp seed meterer and is connected to the front housing to form a conveying cavity. The inner seed chamber cover communicates with the conveying cavity. The drive wheel is installed on the rotating shaft of the finger-clamp seed meterer. The driven shaft is installed between the lower part of the front housing and the lower part of the rear housing. The driven wheel is installed on the driven shaft. The drive wheel and the driven wheel are connected by the conveyor belt, which is located inside the conveying cavity. The multiple blades are installed at equal intervals around the periphery of the conveyor belt.

[0009] Furthermore, the elevated intercropping no-till seeding device also includes a seeding depth control mechanism, which comprises a connecting rod contouring mechanism, a drive shaft, a gearbox, a plow body, and a depth-limiting press wheel. One end of the connecting rod contouring mechanism is attached to the crossbeam of the tractor via a U-bolt, and the other end is rotatably connected to the frame. The drive shaft is connected to the rotating shaft via the gearbox, and simultaneously connected to the ground wheel of the tractor via a belt. The plow body is installed at the bottom of the frame. The depth-limiting press wheel is installed on the frame via a height adjustment assembly.

[0010] The beneficial effect of adopting the above-mentioned further technical solution is that the linkage contouring mechanism and the depth-limiting press wheel work together to control the frame to follow the undulation of the ground, ensuring that the plow body enters the soil at a consistent depth, which can effectively control the sowing depth.

[0011] Furthermore, the linkage contouring mechanism includes two connecting plates and two connecting rods. The two connecting plates are fixed face-to-face on the crossbeam. The two connecting rods are symmetrically distributed, and one end of each connecting rod is connected to the connecting plate by a pin, and the other end of each connecting rod is connected to the frame by a pin, so as to form a parallelogram mechanism.

[0012] Furthermore, the linkage contouring mechanism also includes a limiting plate, which is fixed to any of the pins near the crossbeam.

[0013] Furthermore, the height adjustment assembly includes a limiting pipe, an adjusting pipe, and a support frame. The limiting pipe is tilted and fixed on the frame. The adjusting pipe is sleeved on the limiting pipe and slidably connected, and the adjusting pipe and the limiting pipe are fixed by a locking pin. The support frame is fixed on the adjusting pipe. The depth-limiting press wheel is mounted on the support frame through a bearing.

[0014] Furthermore, the frame includes two support plates and multiple support tubes. The two support plates are connected together by multiple support tubes on both sides to form a cavity between the two support plates. The secondary seeding mechanism and the seeding tube are both located in the cavity. The finger-clamp seed metering device is fixed to the top of the two support plates. The two connecting rods are respectively connected to the two support plates through the pins.

[0015] Furthermore, it also includes a divider, which is mounted on the support plate and located above the plow body.

[0016] Therefore, this utility model provides a high-level intercropping and no-till seeding device, which has the following advantages compared with the prior art: By combining the elevated anti-bounce seed-dropping mechanism and the sowing depth control mechanism, the problems of seed bounce upon landing and unstable seed spacing and sowing depth are significantly reduced, thus improving the quality and efficiency of sowing during intercropping. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 The attached figure is a schematic diagram of the overall structure of an elevated intercropping and no-till seeding device provided by this utility model; Figure 2 The attached figure is a structural diagram showing the combination of the seed box, finger-clamp seed metering device, secondary seed feeding mechanism, and seed feeding tube provided by this utility model; Figure 3 The attached figure is an exploded view of an existing finger-clamp seed metering device provided by this utility model; Figure 4 The attached figure is an exploded view of the existing finger-clamp seed metering device, secondary seeding mechanism, and gearbox housing provided by this utility model. Figure 5 The attached figure is a side view of the linkage contouring mechanism provided by this utility model; Figure 6 The attached diagram is a schematic diagram of the seeding principle of an elevated intercropping no-till seeding device provided by this utility model. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1-6 As shown in the figure, this utility model discloses an elevated intercropping no-till seeding device, including a seed box 1, a finger-clamp seed metering device 2, a frame 3, a secondary seeding mechanism 4, and a seeding tube 5. The seed box 1, the finger-clamp seed metering device 2, the secondary seeding mechanism 4, and the seeding tube 5 are installed sequentially on the frame 3 from top to bottom and are connected in sequence. The finger-clamp seed metering device 2 is connected to the secondary seeding mechanism 4 by transmission. In this utility model, the seeds are first sown into the secondary seeding mechanism 4 through the finger-clamp seed metering device 2. The secondary seeding mechanism 4 and the seeding tube 5 transport the seeds from a high point to a low point (within 10cm above the ground) for secondary sowing, which significantly reduces seed bounce upon landing and improves the quality and efficiency of sowing during intercropping.

[0021] Specifically, the secondary seeding mechanism 4 includes a front housing 41, a rear housing 42, a drive wheel 43, a driven shaft, a driven wheel 44, a conveyor belt 45, and multiple blades 46. The front housing 41 is located on the front side of the finger-clamp seed meterer 2, and the upper part of the front housing 41 is installed between the inner seed chamber cover 21 and the seed metering clamp 25 of the finger-clamp seed meterer 2. The rear housing 42 is located on the rear side of the finger-clamp seed meterer 2 and is connected to the front housing 41 to form a conveying cavity. The inner seed chamber cover 21 communicates with the conveying cavity. The drive wheel 43 is installed on the rotating shaft 210 of the finger-clamp seed meterer 2. The driven shaft is installed between the lower part of the front housing 41 and the lower part of the rear housing 42. The driven wheel 44 is installed on the driven shaft. The drive wheel 43 and the driven wheel 44 are connected by the conveyor belt 45, and the conveyor belt 45 is located in the conveying cavity. Multiple blades 46 are installed at equal intervals around the periphery of the conveyor belt 45.

[0022] Specifically, an elevated intercropping no-till seeding device also includes a seeding depth control mechanism, which includes a connecting rod contouring mechanism 6, a power shaft 7, a transmission 8, a plow body 9, and a depth-limiting press wheel 10. One end of the connecting rod contouring mechanism 6 is attached to the crossbeam 12 of the tractor via a U-bolt 11, and the other end is rotatably connected to the frame 3. The power shaft 7 is connected to the rotating shaft 210 via the transmission 8, and is also connected to the ground wheel of the tractor via a belt. When the tractor moves forward, the ground wheel rotates, providing power to the power shaft 7 to generate rotation. The power shaft 7 transmits power to the rotating shaft 210 of the finger-clamp seed metering device 2 via the transmission 8. The drive wheel 43 of the secondary seeding mechanism 4 and the finger-clamp seed metering device 2 are coaxial and share the same power. The plow body 9 is installed at the bottom of the frame 3. In this embodiment, the plow body 9 is installed on the frame 3 via bolts. The depth-limiting press wheel 10 is installed on the frame 3 via a height adjustment assembly. This utility model uses a connecting rod contouring mechanism 6 in conjunction with a depth-limiting pressing wheel 10 to control the frame 3 to follow the undulations of the ground, ensuring that the plow body 9 enters the soil at a consistent depth, and can effectively control the sowing depth.

[0023] Specifically, the linkage contouring mechanism 6 includes two connecting plates 61 and two connecting rods 62. The two connecting plates 61 are fixed face-to-face on the crossbeam 12. The two connecting rods 62 are symmetrically distributed, and one end of each connecting rod 62 is connected to the connecting plate 61 through a pin, and the other end of each connecting rod 62 is connected to the frame 3 through a pin, forming a parallelogram mechanism. The connecting rod 62 rotates around the crossbeam 12, with its front end connected to the connecting plate 61 through a pin and its rear end connected to the support plate of the frame 3 through a pin. It can complete the vertical contouring movement according to the undulation of the ground, ensuring that the furrow opener's soil entry angle remains constant. It can maintain the relative position of the frame 3 and the plow body 9 on the ground surface in the vertical direction, effectively improving the consistency of the sowing depth of crops in uneven plots.

[0024] To further optimize the technical solution of this utility model, the linkage contouring mechanism 6 also includes a limiting plate 63. The limiting plate 63 is fixed on any pin near the crossbeam 12, which can limit the maximum vertical height of the frame 3 contouring, so as to avoid damage to the frame 3 during turning, lifting and other processes.

[0025] Specifically, the height adjustment assembly includes a limiting pipe 13, an adjusting pipe 14, and a support frame 15. The limiting pipe 13 is tilted and fixed on the frame 3; the adjusting pipe 14 is sleeved on the limiting pipe 13 and slidably connected, and the adjusting pipe 14 and the limiting pipe 13 are fixed by a locking pin 16; the support frame 15 is fixed on the adjusting pipe 14; the depth-limiting press wheel 10 is mounted on the support frame 15 via bearings. During operation, the adjusting pipe 14 can slide up and down along the length of the limiting pipe 13. After the adjusting pipe 14 reaches the appropriate position, it is locked with the locking pin 16 to fix its position and prevent it from sliding further, thereby controlling the distance between the lower surface of the depth-limiting press wheel 10 and the lower surface of the plow body 9, forming a height difference (2-5cm), and realizing the control of the planting furrow depth.

[0026] Specifically, the frame 3 includes two support plates and multiple support pipes. The two support plates are connected together by multiple support pipes on both sides to form a cavity between the two support plates. The secondary seeding mechanism 4 and the seeding pipe 5 are both located in the cavity. The frame 3 is 10cm wide, with excellent passability, and can be used to sow crops with very narrow row spacing. The finger-clamp seed metering device 2 is fixed to the top of the two support plates. The two connecting rods 62 are respectively connected to the two support plates by pins.

[0027] Specifically, it also includes a divider 17, which is mounted on the support plate and located above the plow body 9. In this embodiment, the divider 17 is mounted on the support plate by bolts.

[0028] The working principle of this utility model is as follows: When the tractor-pulled elevated intercropping no-till seeding device is in operation, the frame 3 moves with the undulations of the ground under the action of gravity, the connecting rod contour mechanism 6, and the depth-limiting press wheel 10. The plow body 9 breaks the soil and opens furrows. The inner seed chamber is divided into a seed filling area, a seed carrying area, a seed cleaning area, and a seed placement area in a clockwise direction according to function. The seeds of the subsequent crop in the seed box 1 fall naturally through the holes on the inner seed chamber cover 21 under the action of gravity and accumulate in the seed filling area. The power of the drive shaft 7 is output to the rotating shaft 210 after being changed through the gearbox 8, which drives the drive wheel 43 to rotate. During this process, the finger-clamp seed metering device 2 clamps the seeds in the seed filling area. Seeds slide on the seed-carrying area on the seed-dispensing clamp 25. When they reach the seed-cleaning area, the brush 24 at the top of the seed-cleaning area removes excess seeds. Then, the seeds are transported to the seed-feeding area and fed into the blades 46 in the conveying chamber through the holes on the seed-dispensing clamp 25. As the conveyor belt 45 rotates under the action of the driving wheel 43 and the driven wheel 44, the seeds in the conveying chamber move with the blades 46, are transported from a high point to a low point and fed into the seed-feeding tube 5. After free fall in the seed-feeding tube 5, the seeds fall into the seed furrow opened by the plow body 9, completing the second seeding. Finally, the depth-limiting pressing wheel 10 presses the seed bed to complete the entire sowing operation.

[0029] In a trial of intercropping corn in winter wheat fields, this invention achieved the following results: at a forward speed of 3 km / h, a seed spacing of 30 cm, and a furrow depth of 4 cm, the average sowing qualification index was 92.37% (compared to approximately 80% for existing intercropping seeders), the average missed sowing index was 3.18% (compared to approximately 10% for existing intercropping seeders), and the average sowing depth qualification rate was 92.1% (compared to approximately 85% for existing intercropping seeders). Sowing, furrowing, and compaction were all smooth without any blockages. The average furrow depth of 4 cm, along with the operating speed, sowing depth, and plant spacing, all met the agronomical requirements for corn cultivation. Seed emergence was smooth, deep sowing operations were stable and reliable, and the sowing effect was good. This invention meets the requirements for mechanized sowing in the "Technical Specifications for Quality Evaluation of No-Till Seeders" and the performance testing requirements for no-till seeders from the Agricultural Machinery Appraisal Center of the Ministry of Agriculture, and is suitable for mechanized planting of winter wheat intercropping corn.

[0030] It is worth noting that the specific structure and working principle of the finger-clamp seed metering device 2 are all existing technologies, including the inner seed chamber cover 21, seed metering cam 22, finger clamp pressure plate 23, brush 24, seed metering clamp plate 25, finger clamp mechanism seat 26, cam fixing platform 27, multiple finger clamps 28, torsion spring 29, and rotating shaft 210. Here, only its core principle is explained: The inner seed chamber of the finger-clamp seed metering device 2 is composed of three parts: the inner seed chamber cover 21, the finger clamp pressure plate 23, and the seed metering clamp plate 25. It is the main space for seeds to be contained and initially acted upon within the finger-clamp seed metering device 2; the finger clamps 28 are the core of the seed metering action. The finger clamps 28 pass through the finger clamp pressure plate 23 and the seed metering plate 25. The corresponding hole on the clamping plate 25 extends into the inner seed chamber and fits tightly against the outer ring of the seed dispensing clamping plate 25. The finger clamping pressure plate 23 presses down on the seed dispensing cam 22, which is fixed on the cam fixing platform 27. Meanwhile, the inner wall of the finger clamping mechanism seat 26, the inner wall of the finger clamping pressure plate 23, the outer wall of the seed dispensing cam 22, and the outer wall of the cam fixing platform 27 together form a cavity. This cavity is used to house the end of the finger clamp 28. The end of the finger clamp 28 slides on the surface of the seed dispensing cam 22 and rotates synchronously with the shape change of the seed dispensing cam 22. The opening and closing of the finger clamp is controlled by the shape of the seed dispensing cam 22 to achieve seed picking.

[0031] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A raised intercropping no-till seeding device, comprising a seed box, a finger-clamp seed metering device, and a frame, characterized in that, It also includes a secondary seeding mechanism and a seeding tube. The seed box, the finger-clamp seed metering device, the secondary seeding mechanism and the seeding tube are installed on the frame from top to bottom and are connected in sequence. The finger-clamp seed metering device is connected to the secondary seeding mechanism in a transmission connection.

2. The elevated intercropping and no-till seeding device according to claim 1, characterized in that, The secondary seeding mechanism includes a front housing, a rear housing, a drive wheel, a driven shaft, a driven wheel, a conveyor belt, and multiple blades. The front housing is located at the front of the finger-clamp seed meterer, and the upper part of the front housing is installed between the inner seed chamber cover and the seed metering clamp of the finger-clamp seed meterer. The rear housing is located at the rear of the finger-clamp seed meterer and is connected to the front housing to form a conveying cavity. The inner seed chamber cover communicates with the conveying cavity. The drive wheel is installed on the rotating shaft of the finger-clamp seed meterer. The driven shaft is installed between the lower part of the front housing and the lower part of the rear housing. The driven wheel is installed on the driven shaft. The drive wheel and the driven wheel are connected by the conveyor belt, which is located inside the conveying cavity. The multiple blades are installed at equal intervals around the periphery of the conveyor belt.

3. The elevated intercropping and no-till seeding device according to claim 2, characterized in that, The elevated intercropping no-till seeding device further includes a seeding depth control mechanism, which comprises a connecting rod contouring mechanism, a drive shaft, a gearbox, a plow body, and a depth-limiting press wheel. One end of the connecting rod contouring mechanism is attached to the crossbeam of the tractor via a U-bolt, and the other end is rotatably connected to the frame. The drive shaft is connected to the rotating shaft via the gearbox, and simultaneously connected to the ground wheel of the tractor via a belt. The plow body is installed at the bottom of the frame. The depth-limiting press wheel is installed on the frame via a height adjustment assembly.

4. The elevated intercropping and no-till seeding device according to claim 3, characterized in that, The linkage contouring mechanism includes two connecting plates and two connecting rods. The two connecting plates are fixed face-to-face on the crossbeam. The two connecting rods are symmetrically distributed, and one end of each connecting rod is connected to the connecting plate by a pin, and the other end of each connecting rod is connected to the frame by a pin, so as to form a parallelogram mechanism.

5. The elevated intercropping and no-till seeding device according to claim 4, characterized in that, The linkage contouring mechanism also includes a limiting plate, which is fixed to any of the pins near the crossbeam.

6. The elevated intercropping and no-till seeding device according to claim 3, characterized in that, The height adjustment assembly includes a limiting pipe, an adjusting pipe, and a support frame. The limiting pipe is tilted and fixed on the frame. The adjusting pipe is sleeved on the limiting pipe and slidably connected, and the adjusting pipe and the limiting pipe are fixed by a locking pin. The support frame is fixed on the adjusting pipe. The depth-limiting press wheel is mounted on the support frame through a bearing.

7. The elevated intercropping and no-till seeding device according to claim 4, characterized in that, The frame includes two support plates and multiple support tubes. The two support plates are connected together by the multiple support tubes on both sides to form a cavity between the two support plates. The secondary seeding mechanism and the seeding tube are both located in the cavity. The finger-clamp seed metering device is fixed to the top of the two support plates. The two connecting rods are respectively connected to the two support plates through the pins.

8. The elevated intercropping and no-till seeding device according to claim 7, characterized in that, It also includes a divider, which is mounted on the support plate and located above the plow body.

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