A dual hopper seeder
By designing a dual-hopper seeder, absolute synchronous operation and balanced seed supply between adjacent seeding sections are achieved, solving the problem that existing seeding machinery cannot achieve small row spacing and realizing precision seeding with ultra-small row spacing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO DASHUN JINGFENG IND & TRADE CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-23
AI Technical Summary
The spacing between adjacent single feed bins in existing seeding machinery is limited by the fixed frame structure, making it impossible to achieve the minimum row spacing, especially when sowing with small row spacing, which cannot meet agronomic requirements.
A dual-hopper seeder was designed, which integrates the first and second seeding sections horizontally through the mounting frame, and the drive component links the two seeding sections in the center, sharing the seed feeding space. It adopts a single air pump connected to the negative pressure chamber and an independent seed suction plate shell design to achieve dynamic and balanced seed supply and synchronous seeding.
It breaks through the physical limitations of traditional fixed frames, achieving precise sowing with ultra-small row spacing, ensuring even seed distribution and row spacing accuracy, avoiding missed sowing and uneven sowing, and improving the accuracy and efficiency of sowing.
Smart Images

Figure CN224386187U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seeder technology, specifically to a dual-bin seeder. Background Technology
[0002] In agricultural production, sowing is a crucial step determining crop yield and planting efficiency. With the development of precision agriculture and intelligent agricultural machinery, traditional manual sowing or single-function mechanical sowing equipment can no longer meet the demands of modern agriculture for efficient, precise, and diversified sowing. The limitations of existing equipment become particularly apparent when small row spacing is required in the same plot. Currently, most mainstream sowing machinery uses a single-bin structure. Although the spacing between adjacent bins is adjustable, its fixed frame structure prevents it from achieving the minimum row spacing. For example, a self-propelled seeder disclosed in patent publication CN116711488A has multiple seed metering devices arranged side-by-side, and the spacing between adjacent seed metering devices is adjustable. However, due to the fixed frame structure, its minimum achievable row spacing is typically no less than 15 centimeters. When agronomic requirements dictate a row spacing less than this minimum (e.g., 10 centimeters), existing equipment cannot meet the requirements.
[0003] Therefore, existing technologies need further development. Utility Model Content
[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a dual-bin planter to solve the technical problem in related technologies where the spacing between adjacent single bins is adjustable, but the minimum row spacing cannot be achieved due to the limitations of its fixed frame structure.
[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a dual-bin seeder is provided, comprising: a mounting frame; a drive assembly disposed on the mounting frame; a seeding assembly disposed on the mounting frame, the seeding assembly having a first seeding section and a second seeding section; the seeding assembly having a seed inlet space for simultaneously conveying seeds to the first seeding section and the second seeding section, the first seeding section and the second seeding section being spaced apart along the transverse direction of the mounting frame; at least a portion of the drive assembly is located between the first seeding section and the second seeding section, the drive assembly being drivenly connected to the first seeding section and the second seeding section respectively, so as to drive the first seeding section and the second seeding section to move through the drive assembly to complete the seed discharge.
[0006] Further, the sowing assembly includes: a first outer shell, which is mounted on a mounting frame and has a first seed inlet chamber and a first sowing chamber arranged sequentially along the vertical direction, as well as a first seed outlet communicating with the first sowing chamber; a first seed suction plate assembly, which is disposed on the first outer shell and includes a first seed suction plate body, a first negative pressure chamber disposed within the first seed suction plate assembly, which communicates with the first sowing chamber, the first seed suction plate body being rotatably disposed within the first negative pressure chamber, and having a plurality of first seed suction holes disposed within the first seed suction plate body at intervals along the periphery of the first seed suction plate body; the first seed suction plate assembly being used to adsorb seeds exiting from the first seed inlet chamber onto the first seed suction holes of the first seed suction plate body; a first seed scraper, which is disposed in the first sowing chamber and located at the first seed outlet, and is used to scrape the seeds adsorbed by the first seed suction plate body onto the first seed outlet; and a second outer shell, which is arranged along a second preset direction. Extending in the direction, the second outer shell is mounted on the mounting bracket, and the second outer shell is arranged opposite to the first outer shell; the second outer shell has a second seed inlet chamber and a second seed sowing chamber, and a second seed outlet communicating with the second seed sowing chamber; the second seed inlet chamber and the second seed sowing chamber are connected; the first seed inlet chamber and the second seed inlet chamber form a seed inlet space; a second seed suction plate assembly is arranged on the second outer shell, the second seed suction plate assembly includes a second seed suction plate body, the second seed suction plate assembly is provided with a second negative pressure chamber, the second negative pressure chamber is connected with the second seed sowing chamber, the second seed suction plate body is rotatably arranged in the second negative pressure chamber, the second seed suction plate body is provided with a plurality of second seed suction holes, the plurality of second seed suction holes are spaced apart along the periphery of the second seed suction plate body, the second seed suction plate assembly is used to adsorb the seeds coming out of the second seed inlet chamber onto the second seed suction holes of the second seed suction plate body; a second seed scraper is arranged in the second seed sowing chamber, and the first seed scraper is located at the first seed outlet, the second seed scraper is used to scrape the seeds adsorbed by the second seed suction plate body to the second seed outlet.
[0007] Furthermore, the first seed suction plate assembly further includes: a first suction cup housing, the first seed suction plate body being rotatably disposed relative to the first suction cup housing, and the first suction cup housing being connected to the first housing; the second seed suction plate assembly further includes: a second suction cup housing, the second seed suction plate body being rotatably disposed relative to the second suction cup housing, and the second suction cup housing being connected to the second housing; an air pump, the input end of which is respectively connected to the first negative pressure chamber and the second negative pressure chamber; the air pump is mounted on an installation reference; the air pump is used to create a negative pressure space in the first negative pressure chamber and the second negative pressure chamber; wherein, the first housing, the first seed suction plate assembly, and the first seed scraper form a first sowing section; the second housing, the second seed suction plate assembly, and the second seed scraper form a second sowing section.
[0008] Furthermore, the dual-grain-bin seeder also includes: a seed control component, comprising: a first seed control plate, which is movably disposed relative to the first seed suction plate body, and is used to control the number of seeds on the first seed suction hole; a first adjustment plate, which is installed on the side of the first outer shell away from the second outer shell, and the first seed control plate is movably inserted into the first adjustment plate; a first adjustment part is provided on the first adjustment plate, which extends along a first preset arc and has multiple slots along the first preset arc; a first drive plate, which is movably mounted on the first adjustment plate, and is provided with a first drive part and a first engaging part, the first engaging part engaging with any one of the multiple slots, and the first drive part being drivenly connected to the first seed control plate, so that the first drive part can be moved by adjusting the position of the first engaging part in the first adjustment part, thereby driving the first seed suction hole. The system includes: a seed control plate; a second seed control plate, movably disposed relative to the second seed suction plate assembly, used to control the number of seeds on the second seed suction hole; a second adjustment plate, mounted on the side of the second housing away from the second housing, with the second seed control plate movably inserted into the second adjustment plate; a second adjustment part provided on the second adjustment plate, extending along a third preset arc, with multiple slots along the third preset arc; a second drive plate, movably mounted on the second adjustment plate, provided with a second drive part and a second engaging part, the second engaging part engaging with any one of the multiple slots, the second drive part extending along a fourth preset arc; and a drive connection between the second drive part and the second seed control plate, so that the second drive part moves by adjusting the position of the second engaging part on the second adjustment part, thereby driving the second seed control plate to move.
[0009] Furthermore, the drive assembly includes: a drive shaft, which is rotatably mounted, with one end passing through a first housing and fixedly connected to a first seed suction disc body, the first seed suction disc body being coaxially mounted with the drive shaft; the other end of the drive shaft passing through a second housing and fixedly connected to a second seed suction disc body, the second seed suction disc body being coaxially mounted with the drive shaft; a driven wheel, which is mounted on the drive shaft; the driven wheel is located between the first housing and the second housing; a driving wheel, which is rotatably mounted on a mounting frame, the driving wheel being spaced apart from the first housing; and a chain, which is sleeved on the driving wheel and the driven wheel, and the chain is connected to the driving wheel and the driven wheel respectively, so as to drive the chain to move through the driving wheel, thereby driving the driven wheel and the drive shaft to rotate.
[0010] Furthermore, the dual-bin seeder also includes: a tensioning assembly, comprising: a first rotating shaft extending along the width direction of the mounting frame, with its two ends rotatably disposed relative to the first outer shell and the second outer shell, respectively; a second rotating shaft extending along the width direction of the mounting frame, with its two ends rotatably disposed relative to the first outer shell and the second outer shell, and the second rotating shaft being spaced apart from the first rotating shaft; a connecting plate extending along a third preset direction, with one end of the connecting plate fixedly sleeved on the first rotating shaft, and the end of the connecting plate near the seed inlet space rotatably sleeved on the second rotating shaft; the connecting plate being spaced apart from the chain; and a tensioning wheel rotatably disposed on the side of the seed connecting plate near the chain, the tensioning wheel abutting against the chain to tighten the chain.
[0011] Furthermore, the tensioning assembly also includes: a spring, one end of which is rotatably mounted on the second shaft, and the end of the spring near the connecting plate is connected to the connecting plate; the spring is used to keep the tensioning wheel in contact with the chain at all times.
[0012] Furthermore, the dual-bin seeder also includes a first camera and a second camera, which are respectively mounted on the first housing and the second housing, and are respectively positioned facing the first seeding chamber and the second seeding chamber. The first camera and the second camera are respectively used to acquire information inside the first seeding chamber and the second seeding chamber.
[0013] Beneficial effects:
[0014] 1. The mounting frame serves as the core support platform. By horizontally integrating the first and second seeding sections, the spacing between the two seed bins breaks through the physical limitations of traditional fixed frames. The drive component is centrally located and directly links the two seeding sections, forcing them to move in absolute synchronization and eliminating row spacing deviation at the source. The shared seeding space ensures that seeds are evenly distributed to the two seed bins, avoiding the problem of missed seeding caused by insufficient seed supply on one side, and providing a structural basis for ultra-small row spacing seeding.
[0015] 2. The independent sowing unit composed of the first outer shell and the second outer shell achieves dynamic and balanced seed supply by sharing the seed inlet space; the first seed suction plate body accurately adsorbs seeds under negative pressure, and the seeds are directionally scraped off to the first seed outlet by the first seed scraper. The synchronously executed second sowing part ensures the consistency of seed spacing and row spacing accuracy of double row sowing, completely solving the defect in the background technology that the minimum row spacing caused by the fixed frame cannot meet the agronomic requirements.
[0016] 3. A single air pump connects the first negative pressure chamber and the second negative pressure chamber simultaneously to form a centralized negative pressure source, which greatly simplifies the air circuit system and eliminates the pressure difference between the two chambers; the independent sealing design of the first suction cup shell and the second suction cup shell maintains the stability of the negative pressure, ensures that the adsorption force of the dual suction seed tray body is balanced, and avoids the problem of uneven sowing caused by unilateral leakage. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a dual-compartment seeder used in an embodiment of this utility model;
[0018] Figure 2 This is a schematic diagram showing the position of a dual-bin seeder used in an embodiment of this utility model.
[0019] The above figures include the following reference numerals:
[0020] 1. Mounting frame; 2. Drive assembly; 3. Seeding assembly; 4. First outer shell; 5. First seed suction plate assembly; 6. Second outer shell; 7. Seed control assembly; 8. First seed control plate; 9. First adjusting plate; 10. First drive plate; 11. Drive wheel; 12. Chain; 13. Tensioning assembly; 14. Connecting plate; 15. Tensioning wheel; 16. Spring; 17. First camera; 18. Second camera. Detailed Implementation
[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.
[0022] According to an embodiment of this utility model, a dual-hopper seeder is provided. Please refer to [link / reference]. Figures 1 to 2 The system includes: a mounting frame 1; a drive assembly 2, which is mounted on the mounting frame 1; and a seeding assembly 3, which is also mounted on the mounting frame 1 and has a first seeding section and a second seeding section. The seeding assembly 3 is provided with a seed inlet space for simultaneously feeding seeds into the first and second seeding sections. The first and second seeding sections are spaced apart along the transverse direction of the mounting frame 1. Figure 2 The direction of the middle arrow A is the transverse direction of the mounting frame 1, which is also the width direction of the mounting frame 1; at least part of the drive component 2 is located between the first seeding part and the second seeding part, and the drive component 2 is driven to the first seeding part and the second seeding part respectively, so as to drive the first seeding part and the second seeding part to move through the drive component 2 to complete the seed release.
[0023] By adopting the above technical solution, the mounting frame 1 serves as the core bearing platform. By horizontally integrating the first and second seeding sections, the spacing between the two seed bins breaks through the physical limitations of traditional fixed frames. The drive component 2 is centrally located and directly links the two seeding sections, forcing them to move in absolute synchronization, thus eliminating row spacing deviation at the source. The shared seeding space ensures that the seeds are evenly distributed to the two seed bins, avoiding the problem of missed seeding caused by insufficient seed supply on one side, and providing a structural basis for ultra-small row spacing seeding.
[0024] Please refer to Figure 1 and Figure 2 The sowing assembly 3 includes: a first outer shell 4, which is mounted on the mounting frame 1. The first outer shell 4 has a first seed inlet chamber and a first sowing chamber arranged vertically in sequence, and a first seed outlet communicating with the first sowing chamber; the first seed inlet chamber and the first sowing chamber are connected; and a first seed suction plate assembly 5, which is disposed on the first outer shell 4. The first seed suction plate assembly 5 includes a first seed suction plate body and a first negative pressure chamber arranged inside the first seed suction plate assembly 5. The first negative pressure chamber is connected with the first sowing chamber, and the first seed suction plate body is rotatable. The first seed suction plate assembly 5 is dynamically installed in the first negative pressure chamber. Multiple first seed suction holes are provided within the first seed suction plate body, spaced apart along the periphery of the first seed suction plate body. The first seed suction plate assembly 5 is used to adsorb seeds exiting from the first seed inlet chamber onto the first seed suction holes of the first seed suction plate body. A first seed scraper is disposed in the first sowing chamber and located at the first seed outlet. The first seed scraper is used to scrape the seeds adsorbed by the first seed suction plate body onto the first seed outlet. A second outer shell 6 is disposed along the second pre-... Extending in the direction of the first outer shell 4, the second outer shell 6 is mounted on the mounting bracket 1, and the second outer shell 6 is positioned opposite to the first outer shell 4. The second outer shell 6 has a second seed inlet chamber and a second seeding chamber, and a second seed outlet communicating with the second seeding chamber. The second seed inlet chamber and the second seeding chamber are connected. The first seed inlet chamber and the second seed inlet chamber form a seed inlet space. A second seed suction plate assembly is mounted on the second outer shell 6. The second seed suction plate assembly includes a second seed suction plate body, and a second negative pressure chamber is provided inside the second seed suction plate assembly. The second negative pressure chamber is connected to the second seed outlet. The sowing chamber is connected, and the second seed suction plate body is rotatably disposed in the second negative pressure chamber. The second seed suction plate body has multiple second seed suction holes, which are spaced apart along the periphery of the second seed suction plate body. The second seed suction plate assembly is used to adsorb the seeds coming out of the second seed inlet chamber onto the second seed suction holes of the second seed suction plate body. The second seed scraper is disposed in the second sowing chamber, and the first seed scraper is located at the first seed outlet. The second seed scraper is used to scrape the seeds adsorbed by the second seed suction plate body onto the second seed outlet.
[0025] By adopting the above technical solution, the independent sowing unit composed of the first outer shell 4 and the second outer shell 6 achieves dynamic and balanced seed supply by sharing the seed entry space; the first seed suction plate body accurately adsorbs seeds under negative pressure, and the seeds are directionally scraped off to the first seed outlet by the first seed scraper plate. The synchronously executed action of the second sowing part ensures the consistency of seed spacing and row spacing accuracy of double row sowing, and completely solves the defect in the background technology that the minimum row spacing caused by the fixed frame cannot meet the agronomic requirements.
[0026] Please refer to Figure 1 and Figure 2 The first seed suction plate assembly 5 further includes: a first suction cup housing, the first seed suction plate body being rotatably disposed relative to the first suction cup housing, and the first suction cup housing being connected to the first housing 4; the second seed suction plate assembly further includes: a second suction cup housing, the second seed suction plate body being rotatably disposed relative to the second suction cup housing, and the second suction cup housing being connected to the second housing 6; an air pump, the input end of which is connected to the first negative pressure chamber and the second negative pressure chamber respectively; the air pump is mounted on an installation reference; the air pump is used to create a negative pressure space in the first negative pressure chamber and the second negative pressure chamber; wherein, the first housing 4, the first seed suction plate assembly 5, and the first seed scraper form a first sowing section; the second housing 6, the second seed suction plate assembly, and the second seed scraper form a second sowing section.
[0027] By adopting the above technical solution, a single air pump can simultaneously connect the first negative pressure chamber and the second negative pressure chamber to form a centralized negative pressure source, which greatly simplifies the air circuit system and eliminates the pressure difference between the two chambers; the independent sealing design of the first suction cup shell and the second suction cup shell maintains the stability of the negative pressure, ensures that the adsorption force of the dual suction seed tray body is balanced, and avoids the problem of uneven sowing caused by unilateral leakage.
[0028] Please refer to Figure 1 and Figure 2The dual-feed bin seeder also includes: a seed control component 7, which includes: a first seed control plate 8, movably disposed relative to the first seed suction plate body, used to control the number of seeds on the first seed suction hole; a first adjustment plate 9, installed on the side of the first outer shell 4 away from the second outer shell 6, with the first seed control plate 8 movably inserted into the first adjustment plate 9; a first adjustment part provided on the first adjustment plate 9, extending along a first preset arc, with multiple slots along the first preset arc; and a first drive plate 10, movably mounted on the first adjustment plate 9, with a first drive part and a first engaging part, the first engaging part engaging with any one of the multiple slots, and the first drive part being drivenly connected to the first seed control plate 8, so that the first drive part moves by adjusting the position of the first engaging part in the first adjustment part, thereby controlling the number of seeds on the first seed suction hole; a first adjustment plate 9, installed on the side of the first outer shell 4 away from the second outer shell 6, with the first seed control plate 8 movably inserted into the first adjustment plate 9; and a first adjustment part, which extends along a first preset arc, with multiple slots; and a first drive plate 10, movably disposed on the first adjustment plate 9, with a first drive part and a first engaging part, the first engaging part engaging with any one of the multiple slots, and the first drive part being drivenly connected to the first seed control plate 8, so that the first drive part moves by adjusting the position of the first engaging part in the first adjustment part, thereby controlling the number of seeds on the first adjustment plate 9; and a first adjustment part being driven by adjusting the position of the first adjusting part in the first adjustment plate 9 ... with the first adjustment part being driven by adjusting the position of the A drive unit moves the first seed control plate 8; a second seed control plate is movably disposed relative to the second seed suction plate assembly, and is used to control the number of seeds on the second seed suction hole; a second adjustment plate is mounted on the side of the second housing 6 away from the second housing 6, and the second seed control plate is movably inserted into the second adjustment plate; a second adjustment part is provided on the second adjustment plate, the second adjustment part extends along a third preset arc, and the second adjustment part has multiple slots along the third preset arc; a second drive plate is movably mounted on the second adjustment plate, the second drive plate is provided with a second drive part and a second snap-fit part, the second snap-fit part is inserted into any one of the multiple slots, the second drive part extends along a fourth preset arc; the second drive part is drivenly connected to the second seed control plate, so that the second drive part moves by adjusting the position of the second snap-fit part in the second adjustment part, so as to drive the second seed control plate to move.
[0029] By adopting the above technical solution, the first seed control plate 8 achieves multi-level precision adjustment through the arc-shaped first adjustment part and the multi-slot structure of the first adjustment plate 9. The insertion and locking of the first locking part and the slot provides mechanical anti-displacement protection. The arc motion trajectory of the first drive plate 10 accurately matches the rotation path of the seed suction plate body, so that the first seed control plate 8 effectively intercepts excess seeds. The independent adjustment mechanism of the dual seed control plates is adapted to seeds of different particle sizes, significantly improving the reliability of single seed picking.
[0030] Specifically, both the first driving part and the second driving part are provided with a first arc-shaped groove and a second arc-shaped groove. The first arc-shaped groove extends along a second preset arc, and the second arc-shaped groove extends along a fourth preset arc. The first engaging part is engaged in any groove along the extension direction of the first adjusting part, so that the first driving part drives the first seed control plate to move, so that the first seed control plate approaches or moves away from the first seed suction hole, thereby controlling the number of seeds absorbed by the first seed suction hole. The second engaging part is engaged in any groove along the extension direction of the second adjusting part, so that the second driving part drives the second seed control plate to move, so that the second seed control plate approaches or moves away from the first seed suction hole, thereby controlling the number of seeds absorbed by the second seed suction hole.
[0031] When the first driving unit drives the first seed control plate 8 to move, the column on the first seed control plate 8 slides in the first arc groove. Through the guiding and pushing effect of the first arc groove, the first seed control plate 8 moves on the first adjusting plate 9.
[0032] When the second drive unit drives the second seed control plate to move, the column on the second seed control plate slides in the second arc groove. Through the guiding and pushing action of the second arc groove, the second seed control plate moves on the second adjustment plate.
[0033] Specifically, at least a portion of the first seed control plate 8 is located within the first seeding chamber; at least a portion of the second seed control plate is located within the second seeding chamber.
[0034] Please refer to Figure 1 and Figure 2 The drive assembly 2 includes: a drive shaft, which is rotatably mounted, with one end passing through a first housing 4 and fixedly connected to a first seed suction plate body, the first seed suction plate body being coaxially mounted with the drive shaft; the other end of the drive shaft passing through a second housing 6 and fixedly connected to a second seed suction plate body, the second seed suction plate body being coaxially mounted with the drive shaft; a driven wheel, which is mounted on the drive shaft and located between the first housing 4 and the second housing 6; a drive wheel 11, which is rotatably mounted on a mounting frame 1 and spaced apart from the first housing 4; and a chain 12, which is sleeved on the drive wheel 11 and the driven wheel, and is connected to the drive wheel 11 and the driven wheel respectively, so that the drive wheel 11 drives the chain 12 to move, thereby driving the driven wheel and the drive shaft to rotate.
[0035] By adopting the above technical solution, a single drive shaft rigidly connects the first seed suction disc body and the second seed suction disc body, forcing them to rotate absolutely synchronously to eliminate row spacing deviation; the driven wheel is centrally positioned to optimize the transmission torque distribution, and works with the chain 12 to transmit power, providing overload slip protection while maintaining the temporal and spatial consistency of double-row sowing.
[0036] Please refer to Figure 1 and Figure 2The dual-bin seeder also includes: a tensioning assembly 13, which includes: a first rotating shaft extending along the width direction of the mounting frame 1, with its two ends rotatably disposed relative to the first outer shell 4 and the second outer shell 6 respectively; a second rotating shaft extending along the width direction of the mounting frame 1, with its two ends rotatably disposed relative to the first outer shell 4 and the second outer shell 6 respectively, and the second rotating shaft being spaced apart from the first rotating shaft; a connecting plate 14 extending along a third preset direction, with one end of the connecting plate 14 fixedly sleeved on the first rotating shaft and the end of the connecting plate 14 near the seed inlet space rotatably sleeved on the second rotating shaft; the connecting plate 14 being spaced apart from the chain 12; and a tensioning wheel 15 rotatably disposed on the side of the seed connecting plate 14 near the chain 12, the tensioning wheel 15 abutting against the chain 12 to tighten the chain 12.
[0037] By adopting the above technical solution, the tensioning wheel 15 applies continuous radial pressure to the chain 12 through the leverage amplification effect of the connecting plate 14, which compensates for chain wear and elongation in real time and suppresses lateral sway, thus ensuring the meshing stability of the driving wheel 11 and the driven wheel.
[0038] Please refer to Figure 1 and Figure 2 The tensioning assembly 13 also includes a spring 16, one end of which is rotatably mounted on the second shaft, and the end of the spring 16 near the connecting plate 14 is connected to the connecting plate 14; the spring 16 is used to keep the tensioning wheel 15 in contact with the chain 12 at all times.
[0039] By adopting the above technical solution, the spring 16 provides a constant elastic restoring force to the connecting plate 14, drives the tension wheel 15 to adapt to the instantaneous tension change of the chain 12, buffers the chain vibration caused by operational bumps, and the pre-pressure design eliminates the risk of transmission tooth skipping and extends the system life.
[0040] Please refer to Figure 1 and Figure 2 The dual-bin seeder also includes a first camera 17 and a second camera 18. The first camera 17 and the second camera 18 are respectively mounted on the first housing 4 and the second housing 6. The first camera 17 and the second camera 18 are respectively positioned facing the first seeding chamber and the second seeding chamber. The first camera 17 and the second camera 18 are respectively used to acquire information inside the first seeding chamber and the second seeding chamber.
[0041] By adopting the above technical solution, the first camera 17 and the second camera 18 are respectively embedded in the first shell 4 and the second shell 6 to capture the dynamics of seed adsorption and scraping in the dual sowing chambers in real time. By visually identifying abnormalities such as missed or excessive seed adsorption, data support is provided for monitoring sowing uniformity and precision agricultural management.
[0042] Working principle:
[0043] First, the seeds flow from the external hopper into the seeding space enclosed by the first and second seeding chambers, and are evenly distributed into the first and second seeding chambers under the action of gravity.
[0044] When the air pump starts, it simultaneously draws air into the first and second negative pressure chambers through the pipeline, forming a constant negative pressure environment, which provides the basis for the adsorption force for seed absorption.
[0045] External power (such as the rotation of tractor wheels, driven by the transmission structure) drives the drive wheel 11 to rotate, which in turn drives the driven wheel to rotate via the chain 12.
[0046] The driven wheel forces the drive shaft to rotate synchronously. One end of the drive shaft is rigidly connected to the first seed suction disc body, and the other end is rigidly connected to the second seed suction disc body, forcing the two to rotate at the same angular velocity.
[0047] Under negative pressure, the seeds are precisely adsorbed onto the surfaces of the first and second seed suction holes, forming a double-row seed array.
[0048] The position of the first seed control plate 8 can be adjusted according to the sowing requirements:
[0049] The operator moves the first drive plate 10 to disengage the first locking part from the current slot of the first adjustment plate 9;
[0050] After sliding along the first preset arc to the target position, it is re-inserted and locked, driving the first seed control plate 8 to radially approach the body of the first seed suction plate;
[0051] The cutting edge of the first seed control plate 8 intercepts and adsorbs unstable excess seeds or impurities, ensuring that only the target quantity is retained in each hole.
[0052] Simultaneously, the second seed control plate adjusts through the same mechanism.
[0053] When the seed suction hole that adsorbs the seed rotates to the seed dispensing position:
[0054] The first scraping plate scrapes the seeds off the body of the first seed suction plate and they fall vertically into the seed groove through the first seed outlet.
[0055] The second scraper simultaneously scrapes off the seeds on the second seed suction disc body, which then fall into the adjacent seed trench through the second seed outlet.
[0056] The absolute synchronization of the drive shaft ensures that two rows of seeds are sown simultaneously. The row spacing is determined by the fixed distance between the two outer shells, breaking through the traditional 15cm limitation and achieving precision sowing with ultra-small row spacing (such as 10cm).
[0057] When chain 12 becomes loose due to wear or vibration during operation:
[0058] Spring 16 pushes connecting plate 14 to swing around the first pivot.
[0059] The tensioning wheel 15, fixed on the connecting plate 14, radially presses the chain 12 to compensate for elongation in real time;
[0060] The preload of the spring absorbs the momentary jitter caused by terrain undulations, preventing tooth skipping or chain slippage.
[0061] The first camera 17 continuously captures the seed adsorption trajectory inside the first sowing chamber, while the second camera 18 simultaneously monitors the second sowing chamber to obtain real-time sowing information.
[0062] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0063] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.
[0064] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.
[0065] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0066] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A dual-bin seeder, characterized in that, include: Mounting bracket (1); A drive assembly (2) is disposed on the mounting bracket (1); The sowing assembly (3) is mounted on the mounting frame (1) and has a first sowing section and a second sowing section. The sowing assembly (3) is provided with a seed inlet space for simultaneously conveying seeds to the first sowing section and the second sowing section. The first sowing section and the second sowing section are spaced apart along the transverse direction of the mounting frame (1). At least part of the drive assembly (2) is located between the first sowing section and the second sowing section. The drive assembly (2) is driven to the first sowing section and the second sowing section respectively, so as to drive the first sowing section and the second sowing section to move through the drive assembly (2) to complete the seed discharge.
2. The dual-bin seeder according to claim 1, characterized in that, The seeding component (3) includes: The first outer shell (4) is mounted on the mounting frame (1). The first outer shell (4) is provided with a first seed inlet chamber and a first seeding chamber in sequence along the vertical direction, and a first seed outlet communicating with the first seeding chamber. The first seed inlet chamber is connected to the first seeding chamber. The first seed suction plate assembly (5) is disposed on the first outer shell (4). The first seed suction plate assembly (5) includes a first seed suction plate body. A first negative pressure chamber is provided inside the first seed suction plate assembly (5). The first negative pressure chamber is connected to the first sowing chamber. The first seed suction plate body is rotatably disposed in the first negative pressure chamber. A plurality of first seed suction holes are opened in the first seed suction plate body. The plurality of first seed suction holes are spaced apart along the periphery of the first seed suction plate body. The first seed suction plate assembly (5) is used to adsorb the seeds coming out of the first seed inlet chamber onto the first seed suction holes of the first seed suction plate body. A first seed scraper is disposed in the first sowing chamber and located at the first seed outlet. The first seed scraper is used to scrape the seeds adsorbed by the first seed suction disc body to the first seed outlet. The second outer shell (6) is mounted on the mounting frame (1) and is disposed opposite to the first outer shell (4); the second outer shell (6) is provided with a second seed inlet cavity and a second seeding cavity from top to bottom, and a second seed outlet communicating with the second seeding cavity; the second seed inlet cavity is communicating with the second seeding cavity; the first seed inlet cavity and the second seed inlet cavity form the seed inlet space; The second seed suction plate assembly is disposed on the second outer shell (6). The second seed suction plate assembly includes a second seed suction plate body. A second negative pressure chamber is provided inside the second seed suction plate assembly. The second negative pressure chamber is connected to the second sowing chamber. The second seed suction plate body is rotatably disposed inside the second negative pressure chamber. A plurality of second seed suction holes are provided inside the second seed suction plate body. The plurality of second seed suction holes are spaced apart along the periphery of the second seed suction plate body. The second seed suction plate assembly is used to adsorb the seeds coming out of the second seed inlet chamber onto the second seed suction holes of the second seed suction plate body. The second seed scraper is disposed inside the second sowing chamber and located at the second seed outlet. The second seed scraper is used to scrape the seeds adsorbed by the second seed suction disc body to the second seed outlet.
3. The dual-bin seeder according to claim 2, characterized in that, The first seed suction plate assembly (5) further includes: a first suction cup housing, the first seed suction plate body being rotatably disposed relative to the first suction cup housing, and the first suction cup housing being connected to the first housing (4); The second seed suction plate assembly further includes: a second suction cup housing, the second seed suction plate body being rotatably disposed relative to the second suction cup housing, and the second suction cup housing being connected to the second housing (6); An air pump, the input end of which is connected to the first negative pressure chamber and the second negative pressure chamber respectively; the air pump is mounted on an installation reference; the air pump is used to create a negative pressure space in the first negative pressure chamber and the second negative pressure chamber; The first outer shell (4), the first seed suction plate assembly (5), and the first seed scraper form the first sowing section; the second outer shell (6), the second seed suction plate assembly, and the second seed scraper form the second sowing section.
4. The dual-bin seeder according to claim 2, characterized in that, The dual-feed bin seeder further includes: a seed control component (7), which includes: The first seed control plate (8) is movably disposed relative to the first seed suction plate body, and the first seed control plate (8) is used to control the number of seeds on the first seed suction hole; The first adjusting plate (9) is installed on the side of the first outer shell (4) away from the second outer shell (6), and the first seed control plate (8) is movably inserted on the first adjusting plate (9); the first adjusting plate (9) is provided with a first adjusting part, the first adjusting part extends along a first preset arc, and the first adjusting part is provided with multiple slots along the first preset arc. The first drive plate (10) is movably mounted on the first adjustment plate (9). The first drive plate (10) is provided with a first drive part and a first snap-fit part. The first snap-fit part is inserted into any one of the plurality of slots. The first drive part is driven to the first seed control plate (8). The first drive part is moved by adjusting the position of the first snap-fit part in the first adjustment part, so as to drive the first seed control plate (8) to move through the first drive part. The second seed control plate is movably disposed relative to the second seed suction plate assembly, and the second seed control plate is used to control the number of seeds on the second seed suction hole; The second adjusting plate is installed on the side of the second outer shell (6) away from the second outer shell (6), and the second seed control plate is movably inserted into the second adjusting plate; the second adjusting plate is provided with a second adjusting part, the second adjusting part extends along a third preset arc, and the second adjusting part is provided with multiple slots along the third preset arc; The second drive plate is movably mounted on the second adjustment plate. The second drive plate is provided with a second drive part and a second snap-fit part. The second snap-fit part is inserted into any one of the plurality of slots. The second drive part extends along a fourth preset arc. The second drive part is drivenly connected to the second seed control plate so that the second drive part can be moved by adjusting the position of the second snap-fit part in the second adjustment plate, so as to drive the second seed control plate to move.
5. The dual-bin seeder according to claim 2, characterized in that, The driving component (2) includes: A drive shaft is rotatably configured, one end of which passes through the first outer shell (4) and is fixedly connected to the first seed suction plate body, the first seed suction plate body being coaxially configured with the drive shaft; the other end of the drive shaft passes through the second outer shell (6) and is fixedly connected to the second seed suction plate body, the second seed suction plate body being coaxially configured with the drive shaft; Driven wheel, the driven wheel is mounted on the drive shaft; the driven wheel is located between the first housing (4) and the second housing (6); A drive wheel (11) is rotatably mounted on the mounting bracket (1), and the drive wheel (11) is spaced apart from the first housing (4); Chain (12), the chain (12) is sleeved on the driving wheel (11) and the driven wheel, the chain (12) is connected to the driving wheel (11) and the driven wheel respectively, so as to drive the chain (12) to move through the driving wheel (11), so as to drive the driven wheel and the drive shaft to rotate.
6. The dual-bin seeder according to claim 5, characterized in that, The dual-bin seeder further includes: a tensioning assembly (13), the tensioning assembly (13) comprising: The first rotating shaft extends along the width direction of the mounting bracket (1), and the two ends of the first rotating shaft are rotatably disposed relative to the first housing (4) and the second housing (6), respectively. The second rotating shaft extends along the width direction of the mounting bracket (1), and the two ends of the second rotating shaft are rotatably disposed relative to the first housing (4) and the second housing (6) respectively. The second rotating shaft is spaced apart from the first rotating shaft. A connecting plate (14) extends along a third preset direction. One end of the connecting plate (14) is fixedly sleeved on the first rotating shaft, and the end of the connecting plate (14) near the seeding space is rotatably sleeved on the second rotating shaft. The connecting plate (14) and the chain (12) are spaced apart. Tensioner (15), which is rotatably positioned on the side of the connecting plate (14) close to the chain (12), and abuts against the chain (12) to tighten the chain (12) by means of tensioner (15).
7. The dual-bin seeder according to claim 6, characterized in that, The tensioning assembly (13) also includes: A spring (16) is rotatably mounted on the second shaft at one end, and the end of the spring (16) near the connecting plate (14) is connected to the connecting plate (14); the spring (16) is used to keep the tension wheel (15) in contact with the chain (12) at all times.
8. The dual-bin seeder according to claim 2, characterized in that, The dual-bin seeder also includes a first camera (17) and a second camera (18). The first camera (17) and the second camera (18) are respectively mounted on the first housing (4) and the second housing (6). The first camera (17) and the second camera (18) are respectively positioned facing the first seeding chamber and the second seeding chamber. The first camera (17) and the second camera (18) are respectively used to acquire information inside the first seeding chamber and the second seeding chamber.
Citation Information
Patent Citations
Self-propelled seeder
CN116711488A