A combined seeder

Abstract

The utility model discloses a compound seeding machine relates to seeding machine technical field, including base frame, the middle part of base frame is equipped with adjusting mechanism, the inboard movable mounting of adjusting mechanism has height -adjusting mechanism, the inboard mounting of height -adjusting mechanism has seeding machine body, the bottom one side of base frame both ends all are fixedly installed with the side plate, the inboard lower end rotationally connected of side plate has the travelling wheel. The utility model adopts above -mentioned structure, through setting adjusting mechanism can flexible adjustment seeding machine body horizontal distance, adapts different land seedling pit distance, solves the problem that the seed is wasted, and the artificial seedling is needed in the prior art middle distance mismatch, through setting height -adjusting mechanism can be accurate to adjust longitudinal height according to the land, and the load roller auxiliary reduces motor load, solves the problem that the existing technology is high fixed easily collision, and seed delivery deviates, finally promotes the standardization of sowing, efficiency and quality, enhances the adaptability of equipment to different land working condition.

Description

Technical Field

[0001] This utility model belongs to the field of seeder technology, and specifically relates to a composite seeder. Background Technology

[0002] In modern agricultural production, seeders, as planting machinery that focuses on sowing crop seeds, directly impact agricultural production efficiency and crop quality through their wide application and technological level. To adapt to the growth characteristics and planting needs of different crops, seeders are often named and differentiated according to crop type. For example, there are grain row seeders for cereal planting, corn hill seeders for corn planting, cotton seeders specifically for cotton planting, and forage spreaders for large-scale forage planting. This has formed a rich and functionally targeted product system. As agricultural mechanization develops towards higher power and higher efficiency, in areas where high-power tractors are widely used, the technological improvement of seeders shows a clear trend: on the one hand, by further increasing the working width and improving the operating speed... On the one hand, the speed is optimized to adapt to high-power equipment and improve the efficiency of large-scale planting. On the other hand, the stability of sowing under high-speed operation is continuously optimized to ensure the accuracy of seed placement and avoid the decline in sowing quality due to the increase in speed. At the same time, the diversity of agricultural production scenarios has put forward higher requirements for the versatility and adaptability of seeders. The industry is constantly exploring ways to expand the adaptability range of seeders to different seed types, sowing amounts, and plant spacing parameters to meet the planting needs of multiple crops and multiple working conditions. In addition, in order to simplify the operation process and reduce the cost of land cultivation, various combined operation machines (such as equipment that integrates sowing, fertilization, and soil covering) and no-till seeders adapted to conservation tillage have also become important development directions, promoting the transformation of sowing technology towards multi-functionality and greenness.

[0003] However, existing seeders still have many technical pain points that need to be addressed in practical applications. First, regarding the adaptability of seeding hole spacing, due to differences in planting plans and soil conditions in different plots, the preset seeding hole spacing in the land is often difficult to match perfectly with the fixed spacing of the seeder. This results in seeds not falling accurately into the seeding holes during seeder operation, causing not only seed waste but also the need for subsequent manual replanting, which seriously affects seeding efficiency and planting standardization. Second, regarding the precision of seeding rate control, existing equipment is difficult to effectively regulate the number of seeds poured into a single seeding hole, which easily leads to too many seeds in the seeding hole (causing resource waste and seedling competition for growth) or too few seeds (causing missing seedlings and broken rows), failing to meet the requirements of precision planting for uniform seeding rate.

[0004] To address the aforementioned issues, relevant fields have undertaken technological research and development and patent applications. For example, Chinese patent publication number "CN222655741U" discloses a composite seeder. This device achieves flexible adjustment of the seeder spacing by setting a seeder spacing adjustment mechanism between the base plate and the seeder body, thereby adapting to seeding holes with different spacings and improving seeding efficiency to a certain extent. At the same time, its equipped quantitative seeding mechanism can control the amount of seeds poured into the seeding hole, reducing seed waste and realizing automatic seeding, thus optimizing the device's performance.

[0005] However, this composite seeder still has significant technical limitations in practical applications: its overall structural design is relatively simple, and its functional modules are relatively singular, focusing only on the adjustment of the seeder spacing and quantitative sowing. It does not consider the need for height adjustment of the seeder due to the complexity of land conditions in actual planting scenarios. In agricultural production, the surface of the land is often uneven (such as hilly land or land that has not been completely leveled after cultivation). The fixed height of the seeder in this equipment cannot be flexibly adjusted according to the ground height at different locations, resulting in all seeders always operating on the same horizontal plane. When encountering raised ground, the seeder is prone to collision and damage; when encountering sunken ground, the distance between the seeder and the sowing pit is too large, and the seed placement is prone to deviating from the target position, making it impossible to achieve stable and accurate sowing operations, ultimately affecting the overall sowing quality and failing to meet the planting needs under complex land conditions. Therefore, to address the problem of the lack of height adjustment function in existing seeders, it is urgent to carry out technical improvements and structural optimizations to enhance the adaptability of the equipment to complex working conditions and promote the development of seeders towards a more intelligent and flexible direction. Utility Model Content

[0006] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a composite seeder to solve the problems raised in the background art.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A composite seeder includes a base frame, an adjustment mechanism in the middle of the base frame, a height adjustment mechanism movably installed on the inner side of the adjustment mechanism, a seeder body installed on the inner side of the height adjustment mechanism, side plates fixedly installed at both the front and rear ends of one side of the bottom of the base frame, a movable wheel rotatably connected to the lower inner end of the side plate, and a fixed frame fixedly installed on the bottom of the base frame away from the side plate, with a pressure roller rotatably connected to the lower inner end of the fixed frame.

[0009] The adjustment mechanism includes a frame and a limiting plate. The frame is fixedly installed in the middle of the inner side of the base frame. Slide grooves are provided on both sides of the inner side of the frame. A slider is slidably connected inside the slide groove. The height adjustment mechanism is fixedly installed between the inner sides of the slider. The limiting plate is fixedly installed on one side of the height adjustment mechanism. A mounting screw is threaded to the outer end of the limiting plate. The end of the mounting screw passes through the limiting plate.

[0010] As a preferred technical solution, the mounting screw is a hand-tightening screw, and a limiting base plate is fixedly installed on one side of the top of the base frame. The limiting base plate has limiting holes arranged linearly at equal intervals on its top, and the end of the mounting screw is inserted into the limiting hole.

[0011] As a preferred technical solution, a handrail frame is fixedly installed on one side of the top of the base frame, an operating handrail is fixedly connected to the upper end of the handrail frame, and an anti-slip handrail glove is fixedly connected to the outer surface of the operating handrail.

[0012] As a preferred technical solution, the height adjustment mechanism includes a movable frame, which is fixedly installed between the inner sides of the slider. Vertical rails are fixedly installed on both sides of the inner side of the movable frame. The limiting plate is fixedly installed on the outer side of one of the vertical rails. A sliding block is slidably connected inside the vertical rail. The seeder body is fixedly connected to the inner side of the sliding block. A lifting module is fixedly installed at the upper end of the vertical rail. The bottom of the lifting module is connected to the top of the sliding block.

[0013] As a preferred technical solution, the lifting module includes a hanger, which is fixedly installed on the outside of the vertical rail. A main mounting frame is fixedly installed on the top of the hanger. A take-up roller is rotatably connected to one side of the main mounting frame. A lifting rope is wound on the surface of the take-up roller. A lifting frame is fixedly installed at the bottom end of the lifting rope. A brake motor is fixedly installed on one side of the main mounting frame. The output end of the brake motor is fixedly connected to one end of the take-up roller through a coupling.

[0014] As a preferred technical solution, a load-bearing guide roller is rotatably connected to the side of the main frame body away from the take-up roller, the lifting rope is attached to the top of the load-bearing guide roller, and the lifting rope and the load-bearing guide roller are connected by a drive.

[0015] As a preferred technical solution, the overall cross-sectional shape of the slider and sliding block is convex, the overall cross-sectional shape of the internal cavity of the slide groove and vertical rail is also convex, and the external corners of the base frame, side plate and fixing frame are all rounded.

[0016] In summary, the present invention has the following main advantages:

[0017] Firstly, during the application of this technical solution, by setting an adjustment mechanism, the lateral spacing of the seeder body can be flexibly adjusted during use. The operator can push the height adjustment mechanism to drive the slider to slide in the chute. After the spacing is adapted to the spacing of the planting pits in the plot, the hand-tightening installation screw is rotated and inserted into the limiting hole of the limiting base plate to fix the spacing. This achieves the effect of adapting the seeder to the spacing of planting pits in different plots, solving the problem in the existing technology that the seeds cannot fall accurately into the planting pits due to the mismatch between the seeder and the spacing of the planting pits, resulting in seed waste and the need for manual replanting, which affects the sowing efficiency. At the same time, it ensures that the seeds released by the subsequent quantitative sowing mechanism can accurately correspond to the planting pits, improving the standardization of sowing and the efficiency of operation.

[0018] Secondly, during the application of this technical solution, the height adjustment mechanism allows for precise adjustment of the longitudinal height of the seeder body according to the surface conditions of the plot. Driving the winding roller rotates the winding or releasing of the lifting rope. With the weight supported by the guide roller and the reduced motor load, the sliding block moves up and down along the vertical rail, thereby adjusting the height of the seeder body. This achieves the effect of adapting the seeder to uneven terrain, solving the problems of fixed seeder height in existing technologies, which are prone to collision and damage on raised surfaces and seed placement deviation on sunken surfaces, resulting in unstable sowing. This ensures the stability and accuracy of sowing operations under complex plot conditions, while also improving the equipment's adaptability to different plot conditions and ensuring sowing quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a bottom view structural diagram of this utility model;

[0021] Figure 3 This is a top view of the structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the rear view structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the height adjustment mechanism of this utility model.

[0024] Reference numerals in the attached drawings: 1. Base frame; 2. Adjustment mechanism; 21. Frame; 22. Limiting plate; 23. Slide groove; 24. Slider; 25. Mounting screw; 26. Limiting hole; 27. Limiting base plate; 3. Height adjustment mechanism; 31. Movable frame; 32. Vertical rail; 33. Sliding block; 34. Lifting module; 341. Lifting frame; 342. Main mounting frame; 343. Winding roller; 344. Lifting rope; 345. Lifting frame; 346. Load-bearing guide roller; 347. Brake motor; 4. Seeder body; 5. Side plate; 6. Moving wheel; 7. Fixed frame; 8. Pressure roller; 9. Handrail frame; 10. Operating handrail. Detailed Implementation

[0025] Example

[0026] refer to Figures 1 to 5 A composite seeder according to this embodiment includes a base frame 1, an adjustment mechanism 2 in the middle of the base frame 1, a height adjustment mechanism 3 movably installed on the inner side of the adjustment mechanism 2, a seeder body 4 installed on the inner side of the height adjustment mechanism 3, side plates 5 fixedly installed at both the front and rear ends of one side of the bottom of the base frame 1, a movable wheel 6 rotatably connected to the lower inner end of the side plate 5, and a fixed frame 7 fixedly installed on the bottom of the base frame 1 away from the side plate 5, and a pressure roller 8 rotatably connected to the lower inner end of the fixed frame 7.

[0027] The adjustment mechanism 2 includes a frame 21 and a limiting plate 22. The frame 21 is fixedly installed in the middle of the inner side of the base frame 1. Slide grooves 23 are provided on both sides of the inner side of the frame 21. A slider 24 is slidably connected inside the slide grooves 23. The height adjustment mechanism 3 is fixedly installed between the inner sides of the slider 24. The limiting plate 22 is fixedly installed on one side of the height adjustment mechanism 3. A mounting screw 25 is threaded to the outer end of the limiting plate 22, and the end of the mounting screw 25 passes through the limiting plate 22. During application, the device uses the base frame 1 as a basic support, and with the moving wheels 6 at the lower inner side of the side plate 5 and the pressure roller 8 at the lower inner side of the fixed frame 7, the operator can push the device to move during use. The pressure roller 8 can also treat the surface of the land during movement. Meanwhile, the adjustment mechanism 2 in the middle of the base frame 1 plays a crucial role. The slide grooves 23 on both sides of the inner side of the frame 21... 3 provides a sliding path for slider 24. When it is necessary to adjust the lateral position of the seeder body 4, the slider 24 can be moved to drive the height adjustment mechanism 3 to move, thereby changing the lateral spacing of the seeder body 4. After adjusting to the appropriate position, the mounting screw 25 at the outer end of the limiting plate 22 passes through the limiting plate 22 to fix it, preventing the height adjustment mechanism 3 from shifting from the seeder body 4. This design allows the device to flexibly adapt to the lateral spacing requirements of different plots when in use, solving the problem that the fixed spacing of the seeder is difficult to adapt to different plots in the existing technology, and improving the applicability of the device. At the same time, the cooperation between the moving wheel 6 and the pressure roller 8 makes the device move more convenient. The setting of the pressure roller 8 also creates more stable ground conditions for subsequent sowing operations, ensuring the smooth progress of sowing operations and improving sowing efficiency and operational flexibility.

[0028] refer to Figures 4-5The height adjustment mechanism 3 includes a movable frame 31, which is fixedly installed between the inner sides of the slider 24. Vertical rails 32 are fixedly installed on both sides of the movable frame 31. A limiting plate 22 is fixedly installed on the outer side of one vertical rail 32. A sliding block 33 is slidably connected inside the vertical rail 32. The seeder body 4 is fixedly connected to the inner side of the sliding block 33. A lifting module 34 is fixedly installed at the upper end of the vertical rail 32. The bottom of the lifting module 34 is connected to the top of the sliding block 33. The lifting module 34 includes a hanger 341, which is fixedly installed on the outer side of the vertical rail 32. A main mounting frame 342 is fixedly installed on the top of the hanger 341. A take-up roller 343 is rotatably connected to one side of the main frame 342. A lifting rope 344 is wound around the surface of the take-up roller 343. A lifting frame 345 is fixedly installed at the bottom end of the lifting rope 344. A brake motor 347 is fixedly installed on one side of the main frame 342. The output end of the brake motor 347 is fixedly connected to one end of the take-up roller 343 via a coupling. A load-bearing guide roller 346 is rotatably connected to the side of the main frame 342 away from the take-up roller 343. The lifting rope 344 overlaps the top of the load-bearing guide roller 346. The lifting rope 344 and the load-bearing guide roller 346 are connected by a drive. The overall cross-sectional shape of the slider 24 and the sliding block 33 is convex. The slide groove 23 and the vertical rail 32 are connected by a drive. The overall cross-sectional shape of the internal cavity is also convex. The external corners of the base frame 1, side plate 5, and fixed frame 7 are all rounded. During the application of this device, the height of the seeder body 4 can be flexibly adjusted and the use safety can be ensured by setting the height adjustment mechanism 3 and the matching lifting module 34, the convex slider 24 and sliding block 33, and the rounded corners. When it is necessary to adjust the height of the seeder body 4, the winding roller 343 in the lifting module 34 can rotate to wind up or release the lifting rope 344. Under the transmission cooperation of the load guide roller 346, the lifting rope 344 drives the sliding block 33 to slide along the vertical rail 32 through the lifting frame 345, thereby driving the seeder. The seeder body 4 moves up and down to meet different height requirements. The slider 24 and sliding block 33 adopt a convex design, and the internal cavity of the slide groove 23 and vertical rail 32 is also convex. This can prevent the parts from falling off the track during sliding and ensure the stability of the adjustment process. At the same time, the external corners of the base frame 1, side plate 5 and fixed frame 7 are rounded to reduce the risk of collision damage during use. This design not only makes the height adjustment of the seeder body 4 more convenient and adaptable to different ground conditions, but also improves the stability of the sliding of the parts through the convex structure and enhances the safety of use through the rounded corners. This further ensures the smooth progress of the sowing operation and improves the overall practicality and reliability of the device.

[0029] refer to Figures 1-4The mounting screw 25 is a hand-tightening screw. A limiting base plate 27 is fixedly installed on one side of the top of the base frame 1. Limiting holes 26 are linearly arranged at equal intervals on the top of the limiting base plate 27. The end of the mounting screw 25 is inserted into the limiting hole 26. A handrail frame 9 is fixedly installed on one side of the top of the base frame 1. An operating handrail 10 is fixedly connected to the upper end of the handrail frame 9. An anti-slip handrail glove is fixedly connected to the outer surface of the operating handrail 10. During the application of this device, the hand-tightening mounting screw 25, the limiting base plate 27 with limiting holes 26, the handrail frame 9, the operating handrail 10, and the anti-slip handrail glove make operation more convenient and the fixation more stable. When it is necessary to fix the lateral spacing of the seeder body 4, since the mounting screw 25 is hand-tightening, the operator does not need to use additional tools directly. By rotating it by hand, its end can be pushed into the equally spaced limiting holes 26 on the top of the limiting base plate 27. Through the cooperation of the mounting screw 25 and the limiting holes 26, the height adjustment mechanism 3, which has been adjusted, is stably fixed to prevent deviation during use. When moving the device, the operator can hold the operating handle 10 at the top of the handle frame 9. The non-slip handle glove on the outer surface of the operating handle 10 can increase the friction between the hand and the handle, prevent the hand from slipping, and make the pushing process more effortless and stable. This design not only simplifies the operation process of fixing the spacing, reduces the dependence on tools, and improves the operation efficiency, but also enhances the operation safety through the non-slip handle glove, allowing the operator to control the movement of the device more easily, further ensuring the smooth progress of the sowing operation and improving the convenience and stability of the overall operation.

[0030] Operating principle and advantages: Before sowing, the equipment must be moved and its foundation supported. The base frame 1 provides the foundation support for the entire composite seeder. All functional components are directly or indirectly installed on the base frame 1. The outer corners of the base frame 1, side plates 5, and fixed frame 7 are rounded to reduce the risk of damage from collisions with external objects during movement or operation. The lower inner end of the side plate 5 is rotatably connected to a moving wheel 6, and the lower inner end of the fixed frame 7 is rotatably connected to a pressure roller 8. The moving wheel 6 and the pressure roller 8 together form the moving mechanism of the equipment. The operator can hold the operating handle 10 at the upper end of the handle frame 9. The surface is fixedly connected with anti-slip grip gloves, which increase the friction between the hand and the operating handle 10 to prevent the hand from slipping. When the operator pushes the operating handle 10, it will drive the moving wheel 6 and the pressure roller 8 to rotate, so that the whole equipment moves on the plot and is adjusted to a suitable starting position for sowing. At the same time, the pressure roller 8 can initially compact the surface of the plot during the movement, creating stable ground conditions for subsequent sowing operations. During use, tow hooks or other connecting components can be installed on the operating handle 10 as needed. These connecting components can be used to connect a tractor to tow the device instead of pushing and pulling manually. The specific application can be flexibly selected according to the needs.

[0031] Next, after moving the equipment, the spacing of the seeder needs to be adjusted to match the spacing of the pre-set planting holes in different plots. The adjustment mechanism 2 is used to adjust the lateral spacing of the seeder body 4. The frame 21 of the adjustment mechanism 2 has grooves 23 on both sides inside, and sliders 24 are slidably connected within the grooves 23. The height adjustment mechanism 3 is installed between the inner sides of the two sliders 24. When the operator pushes the height adjustment mechanism 3, it will cause the sliders 24 to slide laterally within the grooves 23 until the spacing of the seeder body 4 matches the spacing of the planting holes on the plot, allowing for flexible adjustment. After completion, the outer end of the limiting plate 22 is threaded with an installation screw 25. The installation screw 25 is designed to be hand-tightened. A limiting base plate 27 is fixedly installed on one side of the top of the base frame 1. Limiting holes 26 are linearly arranged at equal intervals on the top of the limiting base plate 27. The operator can rotate the installation screw 25 so that the end of the installation screw 25 is inserted into the corresponding limiting hole 26 on the limiting base plate 27. Through the cooperation of the installation screw 25 and the limiting hole 26, the slider 24 is fixed in the current position in the slide groove 23, thereby realizing the fixation of the lateral spacing of the height adjustment mechanism 3 and the seeder body 4.

[0032] After the initial adjustment of the seeder spacing, the height of the seeder needs to be adjusted according to the surface conditions of the plot to accommodate uneven surfaces. The height adjustment mechanism 3 is used to adjust the longitudinal height of the seeder body 4. Vertical rails 32 are fixedly installed on both sides inside the movable frame 31 of the height adjustment mechanism 3. Sliding blocks 33 are slidably connected inside the vertical rails 32. The seeder body 4 is fixedly connected to the inner side of the two sliding blocks 33. A lifting module 34 is fixedly installed at the upper end of the vertical rails 32. The bottom of the lifting module 34 is connected to the sliding block 33. The top of the moving block 33 is connected to drive the sliding block 33 to move up and down along the vertical rail 32. The top of the hanger 341 in the lifting module 34 is fixedly mounted with a main mounting frame 342. A take-up roller 343 is rotatably connected to one side of the main mounting frame 342. A lifting rope 344 is wound onto the surface of the take-up roller 343. A lifting frame 345 is fixedly mounted to the bottom end of the lifting rope 344. The bottom of the lifting frame 345 is fixedly connected to the top of the sliding block 33. A rotatable bracket 345 is rotatably connected to the side of the main mounting frame 342 away from the take-up roller 343. The load-bearing guide roller 346 has a lifting rope 344 attached to its top and connected to it via a transmission mechanism. The load-bearing guide roller 346 can support the weight of the lifting rope 344, the sliding block 33, and the seeder body 4, reducing the load on the motor driving the winding roller 343 while ensuring the smoothness of the winding or unwinding process of the lifting rope 344. When the height of the seeder body 4 needs to be adjusted, the operator can drive the winding roller 343 to rotate. If the winding roller 343 rotates clockwise, it will affect the lifting rope 344. During the winding process, the lifting rope 344, supported by the load-bearing guide roller 346, drives the sliding block 33 to move upward along the vertical rail 32 via the lifting frame 345, thereby driving the seeder body 4 to move upward. If the winding roller 343 rotates counterclockwise, it will release the lifting rope 344, and the sliding block 33 will move downward along the vertical rail 32 under its own weight and the weight of the seeder body 4, thereby driving the seeder body 4 to move downward. By controlling the rotation direction and amount of the winding roller 343, the height of the seeder body 4 can be precisely adjusted.

[0033] Finally, after adjusting the spacing and height of the seeder body 4, the sowing operation can begin. The operator moves the equipment across the plot using the moving wheels 6 and the pressure roller 8, while simultaneously starting the seeder body 4. The seeder body 4 sows seeds into the corresponding sowing pits according to the preset sowing rate. During the equipment's movement, the pressure roller 8 further compacts the surface of the sown plot, ensuring full contact between the seeds and the soil, providing favorable conditions for seed germination. Although this technical solution does not directly improve the quantitative sowing mechanism, based on the composite seeder mentioned in the background technology, which already possesses quantitative sowing functionality, this technical solution, through precise adjustment of the spacing and height of the seeder body 4, ensures that the seeds released by the quantitative sowing mechanism accurately fall into the sowing pits, avoiding seed deviation due to unsuitable spacing or height. By setting up the base frame 1, stable support is provided for the entire equipment, allowing for the orderly installation of each component. By setting up the moving wheels 6 in conjunction with the pressure roller 8, the equipment can be moved easily while also compacting the ground, thus laying a good foundation for the sowing operation. The adjustment mechanism 2 allows for flexible adjustment of the lateral spacing of the seeder body 4, enabling the equipment to adapt to seeding pits with different spacings. The height adjustment mechanism 3 solves the problem of fixed height in existing equipment, allowing stable operation on uneven terrain. The handrail frame 9 and operating handrail 10, combined with anti-slip gloves, facilitate operator control and prevent hand slippage. The cooperative structure of slider 24 and chute 23, and slider block 33 and vertical rail 32 ensures stability during sliding and prevents components from derailing. The load-bearing guide roller 346 effectively supports weight and reduces motor load, ensuring stable and efficient height adjustment. These structures work together to further guarantee the effectiveness of seeding control, preventing excessive or insufficient seeding in the seeding pits, meeting the requirements of precision planting for uniform seeding, making the sowing operation more efficient and precise, reducing seed waste, eliminating the need for subsequent manual replanting, improving sowing efficiency and planting standardization, extending equipment lifespan, and enhancing the equipment's adaptability to different terrain conditions.

[0034] In this technical solution, the controller uses an STM32F103 series microcontroller, which is installed on the top of the base frame 1 near the handrail frame 9. The controller is equipped with a 128×64 resolution OLED display screen to display the equipment operating parameters. The drive motor of the take-up roller 343 is a 400W-750W DC brushless motor, with motor models ranging from BLDC-400-24V to BLDC-750-24V. Each take-up roller 343 motor is equipped with a gearbox reducer with a reduction ratio range of 1:10 to 1:30 to improve torque and adjust the speed to 50-150rpm. The motor is equipped with a 1024-line incremental encoder, which can realize flexible adjustment of rotation and stepless speed regulation.

[0035] Meanwhile, linear displacement sensors (model KTC-500 to KTC-1000, measuring range 500-1000mm) are installed on the outside of the vertical rail 32 to detect the position of the sliding block 33. A soil moisture sensor (model SEN0193, measuring range 0-100% RH) is installed at the bottom of the base frame 1, and a seed flow sensor (model FT-200, measuring range 0.1-10kg / h) is installed at the discharge port of the seeder body 4 to assist in operation. The power supply system uses a 24V / 50Ah to 24V / 100Ah lithium battery pack, which is installed on one side of the bottom fixing frame 7 of the base frame 1. The positive terminal of the lithium battery pack is connected to the power input terminal of the controller, the power input terminal of the motor driver, and the power input terminal of each sensor through the main switch, and the negative terminal is grounded together. The sensors can be selected and installed according to the requirements.

[0036] The controller signal output terminal is connected to the motor driver signal input terminal via a CAN bus. The motor driver output terminal is connected to the motor terminal of the take-up roller 343. The encoder signal output terminal is connected to the controller signal input terminal via an SPI bus. The signal output terminals of the linear displacement sensor, soil moisture sensor, and seed flow sensor are all connected to the controller signal input terminal via an RS485 bus. The controller receives signals from each sensor, performs internal program calculations, and controls the motor driver to drive the motor to run. At the same time, the operating parameters are displayed on the display screen in real time, forming a complete control and monitoring circuit system.

[0037] The scope of protection of this application does not involve improvements to the electronic components of the device or equipment. Therefore, the working principles of each electronic component are not described in detail here. The electronic components in this application are all conventional electronic components used in the prior art. They are all conventional technical means in the prior art, and the application of the prior art is very mature. Therefore, they will not be elaborated here.

Claims

1. A composite seeder, characterized in that: The system includes a base frame (1), an adjustment mechanism (2) in the middle of the base frame (1), a height adjustment mechanism (3) movably installed on the inner side of the adjustment mechanism (2), a seeder body (4) installed on the inner side of the height adjustment mechanism (3), side plates (5) fixedly installed at both the front and rear ends of the bottom side of the base frame (1), a moving wheel (6) rotatably connected to the lower inner end of the side plate (5), and a fixed frame (7) fixedly installed on the bottom side of the base frame (1) away from the side plate (5), and a pressure roller (8) rotatably connected to the lower inner end of the fixed frame (7). The adjustment mechanism (2) includes a frame (21) and a limiting plate (22). The frame (21) is fixedly installed in the middle of the inner side of the base frame (1). The frame (21) has a sliding groove (23) on both sides inside. The sliding groove (23) is slidably connected to a slider (24). The height adjustment mechanism (3) is fixedly installed between the inner sides of the slider (24). The limiting plate (22) is fixedly installed on one side of the height adjustment mechanism (3). The outer end of the limiting plate (22) is threadedly connected to a mounting screw (25). The end of the mounting screw (25) passes through the limiting plate (22).

2. The composite seeder according to claim 1, characterized in that: The mounting screw (25) is a hand-tightening screw. A limiting base plate (27) is fixedly installed on one side of the top of the base frame (1). Limiting holes (26) are opened at equal intervals in a linear arrangement on the top of the limiting base plate (27). The end of the mounting screw (25) is inserted into the limiting hole (26).

3. A composite seeder according to claim 1, characterized in that: A handrail frame (9) is fixedly installed on one side of the top of the base frame (1), and an operating handrail (10) is fixedly connected to the upper end of the handrail frame (9). An anti-slip handrail glove is fixedly connected to the outer surface of the operating handrail (10).

4. A composite seeder according to claim 1, characterized in that: The height adjustment mechanism (3) includes a movable frame (31), which is fixedly installed between the inner sides of the slider (24). Vertical rails (32) are fixedly installed on both sides of the inner side of the movable frame (31). The limiting plate (22) is fixedly installed on the outer side of one of the vertical rails (32). A sliding block (33) is slidably connected inside the vertical rail (32). The seeder body (4) is fixedly connected to the inner side of the sliding block (33). A lifting module (34) is fixedly installed at the upper end of the vertical rail (32). The bottom of the lifting module (34) is connected to the top of the sliding block (33).

5. A composite seeder according to claim 4, characterized in that: The lifting module (34) includes a hanger (341), which is fixedly installed on the outside of the vertical rail (32). A main frame (342) is fixedly installed on the top of the hanger (341). A take-up roller (343) is rotatably connected to one side of the main frame (342). A lifting rope (344) is wound on the surface of the take-up roller (343). A lifting frame (345) is fixedly installed at the bottom end of the lifting rope (344). A brake motor (347) is fixedly installed on one side of the main frame (342). The output end of the brake motor (347) is fixedly connected to one end of the take-up roller (343) through a coupling.

6. A composite seeder according to claim 5, characterized in that: A load-bearing guide roller (346) is rotatably connected to the side of the main mounting frame (342) away from the take-up roller (343). The lifting rope (344) is attached to the top of the load-bearing guide roller (346), and the lifting rope (344) and the load-bearing guide roller (346) are connected in a transmission manner.

7. A composite seeder according to claim 6, characterized in that: The overall cross-sectional shape of the slider (24) and the sliding block (33) is convex, and the overall cross-sectional shape of the internal cavity of the slide groove (23) and the vertical rail (32) is also convex. The external corners of the base frame (1), the side plate (5) and the fixing frame (7) are all rounded.

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