A combined rice direct seeding machine

Abstract

This invention belongs to the field of agricultural power seeding machinery technology, specifically a rice combined direct seeding machine, including a seeder box; a frame is fixedly connected to one side of the seeder box; multiple material storage troughs are opened on the seeder box; a servo motor is fixedly connected to one end of the seeder box; a transmission rod is fixedly connected to the output end of the servo motor, and the transmission rod is located at the internal center of the seeder box; the seeder box is installed at the rear of a tractor, and the processed rice seeds and fertilizer are poured into the multiple material storage troughs at intervals. When the tractor moves forward, the servo motor drives the material discharge cylinder on the transmission rod to rotate. When the material discharge cylinder's transfer trough connects with the material storage troughs, the rice seeds and fertilizer fall into the transfer trough and fall down when the material discharge cylinder reaches the bottom, realizing synchronous sowing and fertilization; by controlling the power of the servo motor and adjusting the rotation speed of the material discharge cylinder, the sowing and fertilization interval can be flexibly adjusted to adapt to different variety densities and soil fertility requirements.

Description

Technical Field

[0001] This invention belongs to the field of agricultural power seeding machinery technology, specifically a combined rice direct seeding machine. Background Technology

[0002] Rice is an important food crop, and its cultivation process requires extremely high water management. Traditionally, it relies on a meticulous method of first raising seedlings and then transplanting them. Rice sowing is the process of directly planting treated rice seeds into the field. The key is to ensure that the sowing is uniform and at a consistent depth, which lays the foundation for stable and high yields in the future.

[0003] Traditional rice planters are mostly single-function, separate machines, typically used to complete one task in processes such as sowing or furrowing. Subsequent manual assistance is still required for tasks such as covering with soil and fertilizing, making the process fragmented, time-consuming, and labor-intensive. To solve this problem, rice direct seeding machines have been developed, which integrate furrowing, sowing, and fertilizing into one machine, enabling simultaneous sowing and fertilization. Some intelligent models are also equipped with functions such as side-deep fertilization, missed fertilization monitoring, and remote control, achieving precise and efficient operation, saving labor costs, and improving fertilizer utilization.

[0004] In rice cultivation, rice combine direct seeders can complete a series of processes such as sowing and fertilization in one operation, improving the efficiency of rice cultivation. Traditional rice combine direct seeders mainly consist of a sowing structure and a fertilization structure. The sowing structure is mainly used to sow rice seeds into the field, while the fertilization structure is used to provide necessary fertilizer to the paddy field at the same time as sowing. However, although the integrated operation method improves efficiency, the traditional rice combine direct seeder has a large size and heavy weight because these two parts are designed separately. As a result, the machine is not only more inconvenient to transport and move, but also requires a stronger tractor for towing, thus increasing operating costs.

[0005] Therefore, the present invention provides a combined direct seeding machine for rice. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: A rice combined direct seeding machine of the present invention includes a seeder box; a frame is fixedly connected to one side of the seeder box; multiple material storage troughs are opened on the seeder box; a servo motor is fixedly connected to one end of the seeder box; a transmission rod is fixedly connected to the output end of the servo motor, and the transmission rod is located at the internal center of the seeder box; multiple material leakage cylinders are fixedly connected to the transmission rod, and the material leakage cylinders are rotatably connected to the inside of the seeder box; multiple material transfer troughs are opened on the material leakage cylinders; an adjustment component is provided on the material leakage cylinders, and the adjustment component is used to adjust the size of the material transfer troughs.

[0008] Preferably, the adjusting assembly includes a first blocking plate, a sliding frame, a connecting cylinder, and a wheel; multiple first blocking plates are slidably connected to the discharge cylinder; two sliding frames are respectively fixed to both sides of the first blocking plate and are slidably connected to the discharge cylinder; the connecting cylinder is fixed to multiple sliding frames and is located between two discharge cylinders; the wheel is fixed to one end of a connecting cylinder.

[0009] Preferably, the seeder box has multiple No. 1 limiting holes on the side near the wheel; a pin is slidably connected to the wheel via a No. 1 elastic element, and the pin can be inserted into the No. 1 limiting hole.

[0010] Preferably, multiple second-stage blocking plates are slidably connected to the material leakage cylinder, and the second-stage blocking plates are arranged opposite to the first-stage blocking plates; an annular plate is fixedly connected to the second-stage blocking plates; multiple square slots are opened on one side of the annular plate on the seeder box; a snap-fit ​​plate is fixedly connected to the annular plate, and a round hole is opened on the snap-fit ​​plate; a limit plate is slidably connected to the inner wall of the seeder box near the snap-fit ​​plate through a second elastic element, and multiple round rods are fixedly connected to one end of the limit plate near the snap-fit ​​plate.

[0011] Preferably, a partition plate is fixedly connected to the center of the storage trough on the seeder box; triangular plates are fixedly connected to both sides of the bottom of the partition plate; a sealing plate is slidably connected to the bottom of the partition plate and the triangular plates via an electric slider; and triangular rubber blocks are fixedly connected to both sides of the sealing plate.

[0012] Preferably, the inside of the material discharge cylinder is provided with a vibrating circular groove; multiple triangular metal blocks are fixedly connected in the vibrating circular groove; and multiple striking balls are provided in the vibrating circular groove.

[0013] Preferably, the seeder box has multiple needle rods fixedly connected inside, the needle rods are located below the material leakage cylinder, the top of the needle rods are set as spikes, the bottom of the needle rods are set as squares, and the bottom of the multiple needle rods are fixedly connected to square plates.

[0014] Preferably, a corrugated pipe is fixedly connected to the bottom of the seeder box; a sliding plate is fixedly connected to the bottom of the corrugated pipe, and the sliding plate is slidably connected to the inner wall of the seeder box; a plurality of second limiting holes are opened at the bottom of the seeder box near the sliding plate; a short rod is slidably connected to the bottom of the sliding plate through a third elastic element.

[0015] Preferably, a first guide plate is slidably connected to the bottom end of the sliding plate; a second guide plate is slidably connected to the bottom end of the first guide plate; and a third guide plate is slidably connected to the bottom end of the second guide plate.

[0016] Preferably, a threaded rod is fixedly connected to the bottom of the seeder box; a furrowing plate is threadedly connected to the bottom of the threaded rod; a fixed seat is fixedly connected to the seeder box near the material storage trough; and a flip cover plate is rotatably connected to the fixed seat.

[0017] The beneficial effects of this invention are as follows: 1. The rice direct seeding machine of this invention is mounted at the rear of a tractor via a seeder box. Processed rice seeds and fertilizer are poured into multiple storage troughs at intervals. As the tractor moves forward, a servo motor drives a feed cylinder on a transmission rod to rotate. When the feed cylinder's transfer trough connects with the storage troughs, the rice seeds and fertilizer fall into the transfer trough and then fall as the feed cylinder rotates to the bottom, achieving simultaneous sowing and fertilization. An ultrasonic sensor can be added to the bottom of the machine box for intelligent depth measurement and fertilization, ensuring that the sowing is performed at the set depth. By controlling the servo motor power and adjusting the feed cylinder speed, the sowing and fertilization interval can be flexibly adjusted to adapt to different varieties and densities. With no need to replace parts to meet the soil fertility requirements, this design offers greater adaptability. Traditional direct seeding machines require changing the rotating drum with different slots one by one to change the seeding rate, which is cumbersome and requires multiple sets of spare parts. This design controls the amount of material dropped at one time by adjusting the size of the material trough opening through the adjustment component, avoiding problems such as uneven spreading, excessive fertilizer, or excessive density. With its integrated structure, there is no need to separate the seeding chamber and the fertilizer chamber. The same set of material discharge cylinder and storage trough can be used to simultaneously transport the two types of materials, reducing the size and weight of the equipment, making it easier to transport, reducing the power requirements of the tractor, and making it more suitable for the rice planting needs of small and medium-sized plots.

[0018] 2. The rice direct seeding machine of the present invention uses a counterclockwise rotating wheel to synchronously drive multiple sliding frames and connecting cylinders to rotate, causing each No. 1 blocking plate to slide on the material leakage cylinder, partially blocking the opening of the material transfer trough and reducing the opening size. When it is necessary to enlarge the opening, a person manually rotates the wheel clockwise to drive all the No. 1 blocking plates to slide in the opposite direction synchronously, gradually releasing the blocked parts. The entire operation does not require disassembling any parts, and one person can complete the synchronous adjustment of all material transfer troughs of the machine. This not only adapts to the sowing and fertilization requirements of different plots, but also avoids the problem of inconsistent opening sizes caused by adjusting them one by one. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the material storage tank in this invention; Figure 3 This is a partial structural cross-sectional view of the seeder box in this invention; Figure 4 This is a schematic diagram of the servo motor in this invention; Figure 5 This is a schematic diagram of the material leakage cylinder in this invention; Figure 6 This is a schematic diagram of the annular plate in this invention; Figure 7 This is a schematic diagram of the short rod in this invention; Figure 8 This is a schematic diagram of the triangular metal block in this invention.

[0021] In the diagram: 1. Seeder box; 11. Frame; 12. Material storage trough; 13. Servo motor; 14. Transmission rod; 15. Material discharge cylinder; 16. Transfer trough; 2. No. 1 blocking plate; 21. Sliding frame; 22. Connecting cylinder; 23. Wheel; 3. No. 1 limiting hole; 31. Pin rod; 4. No. 2 blocking plate; 41. Annular plate; 42. Square groove; 5. Snap-fit ​​plate; 51. Limiting plate; 6. 61. Corrugated pipe; 7. Sliding plate; 8. No. 2 limiting hole; 9. Short rod; 10. No. 1 guide plate; 11. No. 2 guide plate; 12. No. 3 guide plate; 13. Grooving plate; 14. Fixed seat; 15. Flip cover plate; 16. Divider plate; 17. Triangular plate; 18. Sealing plate; 19. Triangular rubber block; 10. Triangular metal block; 10. Striking ball; 11. Needle rod. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] Intelligent agricultural power machinery is a product of the deep integration of modern information technology and mechanical equipment. With unmanned driving, Beidou navigation, electro-hydraulic control and Internet of Things sensing technology as its core, it can sense the environment, plan paths and operate with precision. This type of machinery not only significantly reduces the dependence on human labor, but also realizes the leap from experience-driven to data-driven through variable fertilization, precision sowing and data closed loop, becoming a smart carrier in digital agriculture that can be efficiently scheduled and operate around the clock. Traditional rice direct seeding machines are a type of combined operation machinery that integrates sowing, fertilization, and ditching. Relying on mechanical wheel transmission and mechanical structure, they directly sow soaked and germinated rice seeds into the field at predetermined row and hole spacing. This eliminates the seedling raising and transplanting steps, significantly improving work efficiency compared to manual labor. With the development of intelligent agricultural power machinery, rice direct seeding machines have gradually been equipped with sensors. Some are used to measure the depth of the tillage layer to ensure that rice seeds and fertilizers are accurately applied to the set depth. Other sensors are used to monitor in real time whether the fertilizer pipeline is blocked and the amount of fertilizer remaining, thus becoming intelligent agricultural power machinery. Although integrated rice direct seeding machines improve efficiency, traditional rice direct seeding machines are larger and heavier because they usually design the sowing and fertilization components separately. This makes the machines more inconvenient to transport and move, and requires stronger tractors for towing, thus increasing operating costs.

[0024] To better sowing and fertilizing, such as Figures 1 to 5 As shown in the embodiment of the present invention, a rice direct seeding machine includes a seeder box 1; a frame 11 is fixedly connected to one side of the seeder box 1; multiple material storage troughs 12 are provided on the seeder box 1; a servo motor 13 is fixedly connected to one end of the seeder box 1; a transmission rod 14 is fixedly connected to the output end of the servo motor 13, and the transmission rod 14 is located at the internal center of the seeder box 1; multiple material discharge cylinders 15 are fixedly connected to the transmission rod 14, and the material discharge cylinders 15 are rotatably connected to the inside of the seeder box 1; multiple material transfer troughs 16 are provided on the material discharge cylinders 15; an adjustment component is provided on the material discharge cylinders 15, which is used to adjust the size of the material transfer troughs 16; during rice planting, the seeder box 1 is installed at the rear of the tractor via the frame 11, and the treated rice seeds are poured intermittently into the multiple material storage troughs 12. Within 2, fertilizer is poured intermittently into the remaining multiple storage troughs 12. Then, the tractor pulls the rice combined direct seeding machine forward. The output end of the servo motor 13 drives the multiple material discharge cylinders 15 on the transmission rod 14 to rotate. Whenever the transfer trough 16 on the material discharge cylinder 15 connects with the storage trough 12, the rice seeds and fertilizer in different storage troughs 12 fall into the transfer trough 16. As the material discharge cylinder 15 continues to rotate, when the transfer trough 16 with rice seeds and fertilizer reaches the bottom of the seeder box 1, the rice seeds and fertilizer can fall from the bottom of the seeder box 1, completing the synchronous operation of sowing and fertilization. A sensor can be added to the bottom of the seeder box 1. The sensor is used to realize intelligent depth fertilization, such as an ultrasonic sensor. The ultrasonic sensor can be used to measure the depth of the tillage layer to ensure that the rice seeds and fertilizer are accurately applied to the set depth, thus becoming an intelligent agricultural power machine. By flexibly controlling the output power of the servo motor 13, the speed of the material discharge cylinder 15 can be controlled, thus enabling control over the interval between sowing or fertilization. This adapts to the planting density requirements of different rice varieties and the fertility requirements of different plots, eliminating the need for additional parts replacement and making it more adaptable. In contrast, traditional direct seeding machines with fixed slot sizes require replacing the rotating cylinders with different slot sizes one by one to change the sowing and fertilization amount, which is cumbersome and requires the stockpiling of multiple sets of spare parts. By adjusting the opening size of the feed trough 16, the amount of rice seeds or fertilizer dropped at one time can be controlled according to planting needs, thereby achieving the regulation of sowing and fertilization. This replaces the traditional rice direct seeding machine, which is difficult to adjust the amount of material dropped, reducing problems such as uneven sowing, excessive fertilizer, or overly dense seeds. With its integrated structure design, there is no need to set up separate sowing and fertilization chambers. The same set of feed hopper 15 and storage trough 12 is used to simultaneously complete the conveying and sowing of two types of materials, compressing the overall volume of the equipment and reducing the weight of the machine. This not only makes transfer and transportation more convenient but also reduces the power requirements of the tractor, making it suitable for rice planting needs in more small and medium-sized plots.

[0025] The adjustment assembly includes a first blocking plate 2, a sliding frame 21, a connecting cylinder 22, and a wheel 23; multiple first blocking plates 2 are slidably connected to the discharge cylinder 15; two sliding frames 21 are respectively fixed to both sides of the first blocking plate 2, and the sliding frames 21 are slidably connected to the discharge cylinder 15; the connecting cylinder 22 is fixed to multiple sliding frames 21, and the connecting cylinder 22 is located between two discharge cylinders 15; the wheel 23 is fixed to one end of a connecting cylinder 22; when the opening of the material transfer trough 16 is reduced, the wheel 23 is manually rotated counterclockwise, and the wheel 23 synchronously drives the multiple connecting cylinders connected to the multiple sliding frames 21. The rotating cylinder 22 causes multiple No. 1 blocking plates 2 to slide on the material discharge cylinder 15. The No. 1 blocking plates 2 partially block the opening of the material transfer trough 16, thus reducing the opening size. When it is necessary to enlarge the opening of the material transfer trough 16, the manual hand-held wheel 23 is rotated clockwise, which drives all the No. 1 blocking plates 2 to slide in the opposite direction synchronously, gradually releasing the blocking parts of the opening of the material transfer trough 16. The operation process does not require disassembling any parts of the equipment. One person can complete the synchronous adjustment of all material transfer troughs 16 of the entire machine, adapting to the sowing and fertilization requirements of different plots, and reducing the situation where adjusting multiple material transfer troughs 16 one by one results in inconsistent opening sizes.

[0026] like Figures 1 to 5 , Figure 7As shown, the seeder box 1 has multiple first-position limiting holes 3 on the side near the wheel 23; a pin 31 is slidably connected to the wheel 23 via a first elastic element, and the pin 31 can be inserted into the first-position limiting hole 3; when adjusting the position of the multiple first-position blocking plates 2, first pull the pin 31 out of one of the first-position limiting holes 3, the first elastic element is stretched and stressed, then hold the wheel 23 to rotate and adjust the position of the multiple first-position blocking plates 2, after adjustment, release the pin 31, the first elastic element's elastic force drives the pin 31 to rotate and adjust the position of the multiple first-position blocking plates 2. Pin 31 is inserted into another limiting hole 3 to limit the rotation angle of the wheel 23, reducing the possibility of the wheel 23 rotating unexpectedly due to vibration during equipment operation, ensuring that the opening size of the material transfer trough 16 remains stable, and maintaining the uniformity of the preset spreading amount; multiple spaced limiting holes 3 can fix different rotation positions of the first blocking plate 2, adapting to the limiting requirements after adjusting different opening sizes. The limiting structure is simple and reliable, reducing the complexity of adjustment operations and ensuring adjustment efficiency during field operations.

[0027] like Figures 1 to 7 As shown, multiple second-level blocking plates 4 are slidably connected to the material discharge cylinder 15, and the second-level blocking plates 4 are arranged opposite to the first-level blocking plate 2; an annular plate 41 is fixedly connected to the second-level blocking plate 4; multiple square grooves 42 are opened on one side of the annular plate 41 on the seeder box 1; a snap-fit ​​plate 5 is fixedly connected to the annular plate 41, and a round hole is opened on the snap-fit ​​plate 5; a limit plate 51 is slidably connected to the inner wall of the seeder box 1 near the snap-fit ​​plate 5 through a second elastic element, and multiple round rods are fixedly connected to one end of the limit plate 51 near the snap-fit ​​plate 5; when only the multiple material transfer grooves 16 on the material discharge cylinder 15 need to be adjusted individually, the square grooves 42 are rotated to adjust the material transfer grooves. The ring plate 41 at the appropriate position is sufficient. There is no need to adjust all the slots together. Rotating the ring plate 41 clockwise will cause multiple No. 2 blocking plates 4 to slide, which can reduce the opening at the material transfer trough 16. Conversely, rotating the ring plate 41 counterclockwise can expand the opening at the material transfer trough 16. This can flexibly meet the sowing requirements of local plots in the field. For example, if some plots have insufficient fertility and need to increase the amount of fertilizer, or if some seeds have a low germination rate and need to increase the amount of sowing, the size of the opening at the corresponding position can be adjusted separately without changing the preset parameters of other positions. This makes the adjustment more flexible and can effectively adapt to the operational needs of irregular plots and plots with uneven fertility, ensuring the accuracy of sowing and fertilization. When rotating the annular plate 41 to adjust the position of multiple second-stage blocking plates 4, the limiting plate 51 is first pressed and slid into the seeder box 1. The second elastic element contracts and is subjected to force, and the round rod on the limiting plate 51 disengages from the round hole of the locking plate 5. Then, the annular plate 41 and the locking plate 5 are rotated. After the rotation adjustment is completed, the limiting plate 51 is released, and the elastic force of the second elastic element drives the limiting plate 51 to reset. Another round rod on the limiting plate 51 is inserted into the round hole of the locking plate 5, completing the locking of the position of the annular plate 41. This reduces the situation where the annular plate 41 rotates on its own due to vibration during the operation of the rice combined direct seeding machine, ensuring that the opening size is maintained within the preset adjustment range, and further stabilizing the accuracy of sowing and fertilization. Through the positioning of the round hole and the round rod, the stroke of each rotation adjustment is fixed, which can control the range of change in the opening size. The operator can quickly adjust the corresponding opening size according to the needs without repeated comparison and adjustment, reducing the difficulty of adjustment operation and improving the adjustment efficiency of field operation.

[0028] like Figures 1 to 8 As shown, a partition plate 111 is fixedly connected to the center of the storage trough 12 on the seeder box 1; triangular plates 112 are fixedly connected to both sides of the bottom of the partition plate 111; a sealing plate 113 is slidably connected to the bottom of the partition plate 111 and the triangular plates 112 via an electric slider; triangular rubber blocks 114 are fixedly connected to both sides of the sealing plate 113; when rice seeds and fertilizer are temporarily stored in the storage trough 12, the rice seeds and fertilizer can be poured into the storage trough 12 separated by the partition plate 111 respectively, and the sealing plate 113, in conjunction with the triangular rubber blocks 114, is moved by the electric slider. The bottom of a triangular plate 112 is sealed, so that when fertilizer is used, the rice seeds in the storage trough 12 are sealed by the sealing plate 113 and the triangular rubber block 114, while the fertilizer falls into the bottom of the storage trough 12 along the guide of another triangular plate 112. As the leakage cylinder 15 rotates, the fertilizer is intermittently removed for fertilization. At the same time, the storage trough 12, which is separated by the partition plate 111, can not only separate and switch between rice seeds and fertilizer, but also can be separated according to different varieties of rice seeds or fertilizers, so as to play the role of separating and switching between different varieties of rice seeds or fertilizers.

[0029] The inside of the feed cylinder 15 is provided with a vibrating groove; multiple triangular metal blocks 121 are fixed in the vibrating groove; multiple striking balls 122 are provided in the vibrating groove; when rice seeds and fertilizer are fed out as the feed cylinder 15 rotates, the feed cylinder 15 rotates to collect the material from the storage trough 12 and send it to the bottom of the feed cylinder 15 for feeding. As the feed cylinder 15 rotates, the multiple striking balls 122 in the vibrating groove continuously roll down, and the multiple striking balls 122 can hit the multiple triangular metal blocks 121 to generate vibration. The vibration is transmitted to the transfer trough 16 on the feed cylinder 15, which can reduce the material adhesion in the transfer trough 16, accelerate the falling of the material in the transfer trough 16, and reduce the probability of some material remaining in the transfer trough 16.

[0030] Multiple needle rods 131 are fixedly connected inside the seeder box 1. The needle rods 131 are located below the material discharge cylinder 15. The top of the needle rod 131 is set as a spike, and the bottom of the needle rod 131 is set as a square. A square plate is fixedly connected to the bottom of the needle rod 131. When rice seeds and fertilizer are intermittently fed as the material discharge cylinder 15 rotates, the material in the material transfer trough 16 on the material discharge cylinder 15 is rotated by the transmission rod 14 and falls to the needle rods 131. Some of the clumps of material can hit the spiked top of the needle rod 131. The square bottom of the needle rod 131 is supported by the square plate. Then the spiked top of the needle rod 131 breaks up the clumps of material, so that the material can fall in a dispersed manner, reducing the situation where the material is affected by clumping.

[0031] like Figures 1 to 3 , Figure 7 As shown, a corrugated pipe 6 is fixedly connected to the bottom of the seeder box 1; a sliding plate 61 is fixedly connected to the bottom of the corrugated pipe 6, and the sliding plate 61 is slidably connected to the inner wall of the seeder box 1; a plurality of second-order limiting holes 7 are opened at the bottom of the seeder box 1 near the sliding plate 61; a short rod 71 is slidably connected to the bottom of the sliding plate 61 through a third-order elastic element; when rice seeds or fertilizer fall from the transfer trough 16, the material falls from the transfer trough 16 into the corrugated pipe 6, and then is discharged from the bottom of the sliding plate 61. If the falling position needs to be adjusted, the sliding plate 6 can be moved and adjusted. At position 1, the corrugated pipe 6 deforms accordingly. The corrugated pipe 6 and the sliding plate 61 cooperate to form an inclined feeding channel, adjusting the discharge port to the position of the corresponding sowing furrow. This reduces the waste caused by rice seeds or fertilizer falling into the gaps between the rows, ensuring that the amount of sowing and fertilization in each row meets the planting requirements, reducing the workload of subsequent reseeding and fertilization, and also reducing unnecessary loss of seeds and fertilizer, thus ensuring the cost of planting. At the same time, the inclined feeding channel can guide the material to slide down steadily, reducing the probability of material accumulating and getting stuck at the discharge port, reducing the interruption of feeding, and ensuring continuous direct seeding. When the sliding plate 61 adjusts the material outlet position, the two short rods 71 ​​are first retracted into the seeder box 1. The two short rods 71 ​​slide out from the two second limiting holes 7, and the third elastic element contracts under force. Then, the sliding plate 61 is slid to the required material guiding position. After sliding, the elastic element of the third element drives the short rods 71 ​​to reset. The two short rods 71 ​​are reinserted into the other two second limiting holes 7, fixing the adjusted position of the sliding plate 61. This reduces the possibility of the sliding plate 61 shifting position due to machine vibration during the direct seeding process, ensuring that the outlet is always aligned with the preset furrow position and reducing the probability of seed and fertilizer waste during operation. The multiple evenly distributed second limiting holes 7, combined with the insertion positioning, provide clear position adjustment levels to adapt to different planting requirements for ridge spacing, and make positioning operation simpler and less labor-intensive, meeting the needs of rapid adjustment during field operations.

[0032] The bottom end of the sliding plate 61 is slidably connected to a first guide plate 8; the bottom end of the first guide plate 8 is slidably connected to a second guide plate 81; and the bottom end of the second guide plate 81 is slidably connected to a third guide plate 82. During the sowing and fertilization process, the positions of the first guide plate 8, the second guide plate 81, and the third guide plate 82 are adaptively adjusted according to the required sowing and fertilization amounts. If rapid batch sowing and fertilization is required, the first guide plate 8, the second guide plate 81, and the third guide plate 82 are slid away from the bottom of the sliding plate 61, allowing for rapid material feeding and sowing / fertilization through the largest opening at the bottom of the sliding plate 61. Conversely, if gradual and precise sowing and fertilization is required, the positions of the first guide plate 8, the second guide plate 81, and the third guide plate 82 are adjusted according to the required amount of sowing and fertilization. The size of the opening needs to be controlled by adjusting the sliding positions of the first guide plate 8, the second guide plate 81, and the third guide plate 82. From the first guide plate 8 to the second guide plate 81, and then to the third guide plate 82, the opening at the bottom becomes smaller and smaller, thereby gradually reducing the material passage area of ​​the discharge port. This allows for precise control of different amounts of sowing and fertilization, improving the adaptability of the direct seeding machine to different planting needs. Friction pads or positioning pins can be added between the sliding plate 61, the first guide plate 8, the second guide plate 81, and the third guide plate 82. After the sliding adjustment is completed, their positions are fixed. This reduces the occurrence of automatic changes in the opening when encountering bumps and vibrations during field operations, ensuring that the discharge volume is stable and controllable throughout the process.

[0033] like Figures 1 to 3 As shown, a threaded rod is fixedly connected to the bottom of the seeder box 1; a furrowing plate 9 is threadedly connected to the bottom of the threaded rod; a fixed seat 91 is fixedly connected to the seeder box 1 near the storage trough 12; a flip cover plate 92 is rotatably connected to the fixed seat 91; furrowing is carried out at the same time as sowing and fertilizing. First, different models of furrowing plates 9 are selected according to the required furrow size, and multiple furrowing plates 9 are threadedly connected to the threaded rod at the bottom of the seeder box 1. As the tractor pulls the rice combined direct seeding machine, multiple furrowing plates 9 can perform the furrowing process. When rice seeds and fertilizer are poured into multiple storage troughs 12, the flip cover 92 rotates on the fixed base 91 and covers the storage troughs 12 to shield them, reducing the amount of external impurities falling into the mixture in the storage troughs 12; at the same time, it reduces the waste caused by rice seeds and fertilizer splashing out of the storage troughs 12 due to bumps and vibrations during the machine's movement. When it is necessary to add rice seeds or fertilizer to the storage troughs 12, simply rotate the flip cover 92 upwards to complete the feeding operation, which is simple and convenient to use.

[0034] Working process: During rice planting, the seeder box 1 is mounted on the rear of the tractor via the frame 11. Processed rice seeds are poured intermittently into multiple storage troughs 12, followed by fertilizer being poured intermittently into the remaining storage troughs 12. The tractor then pulls the rice combined direct seeding machine forward. The output of the servo motor 13 drives multiple feed hoppers 15 on the transmission rod 14 to rotate. Whenever the transfer trough 16 on the feed hopper 15 connects with a storage trough 12, rice seeds and fertilizer from different storage troughs 12 fall into the transfer trough 16, discharging as the fertilizer is released. As the cylinder 15 continues to rotate, the transfer trough 16 carrying rice seeds and fertilizer reaches the bottom of the seeder box 1. The rice seeds and fertilizer then fall from the bottom of the seeder box 1, completing the simultaneous sowing and fertilization operation. Sensors can be added to the bottom of the seeder box 1 to achieve intelligent depth-based fertilization, such as ultrasonic sensors. These ultrasonic sensors can measure the depth of the tillage layer, ensuring that the rice seeds and fertilizer are accurately applied to the set depth, thus becoming intelligent agricultural power machinery. Furthermore, by flexibly controlling the output power of the servo motor 13, leakage can be controlled. The rotation speed of the discharge cylinder 15 allows for control over the interval between sowing and fertilization, adapting to the planting density requirements of different rice varieties and the fertility requirements of different plots. No additional parts need to be replaced, making it more adaptable. In contrast, traditional direct seeders with fixed slot sizes require replacing each rotating cylinder with a different slot size to change the sowing and fertilization rate, which is cumbersome and requires multiple sets of spare parts. By adjusting the opening size of the discharge trough 16, the amount of rice seeds or fertilizer dropped at one time can be controlled according to planting needs, achieving regulation of sowing and fertilization rates. This replaces traditional rice combined direct seeders where the discharge rate is difficult to adjust, reducing problems such as uneven sowing, excessive fertilizer, or overly dense seeding. With its integrated design, separate sowing and fertilization chambers are unnecessary; both types of materials are simultaneously conveyed and sown using the same set of discharge cylinder 15 and storage trough 12, compressing the overall size and weight of the equipment. This not only makes transportation more convenient but also reduces the power requirements of the tractor, adapting to the rice planting needs of more small and medium-sized plots. When the opening of the transfer trough 16 is reduced, the manual hand-held wheel 23 is rotated counterclockwise. The wheel 23 synchronously drives the multiple connecting cylinders 22 connected to the multiple sliding frames 21 to rotate, causing multiple No. 1 blocking plates 2 to slide on the material leakage cylinder 15. The No. 1 blocking plates 2 partially block the opening of the transfer trough 16, thus reducing the opening size. When it is necessary to enlarge the opening of the transfer trough 16, the manual hand-held wheel 23 is rotated clockwise, which drives all the No. 1 blocking plates 2 to slide synchronously in the opposite direction, gradually releasing the blockage. The operation does not require disassembling any parts of the equipment; one person can complete the synchronous adjustment of all transfer troughs 16 on the entire machine, adapting to the sowing and fertilization requirements of different plots and reducing the situation where adjusting multiple transfer troughs 16 one by one results in inconsistent opening sizes. When multiple No. 1 blocking plates 2 are used to enlarge the opening of the transfer trough 16, the manual hand-held wheel 23 is rotated clockwise, causing all the No. 1 blocking plates 2 to slide synchronously in the opposite direction, gradually releasing the blockage. When adjusting the position of the material plate 2, first pull the pin 31 out of one of the first limiting holes 3. The first elastic element is stretched and stressed. Then, hold the wheel 23 to rotate and adjust the position of multiple first blocking plates 2. After adjustment, release the pin 31. The elastic element's spring force drives the pin 31 to insert into another first limiting hole 3, limiting the rotation angle of the wheel 23. This reduces the possibility of the wheel 23 rotating unexpectedly due to vibration during equipment operation, ensuring that the opening size of the material transfer trough 16 remains stable and maintaining the uniformity of the preset spreading amount. Multiple spaced first limiting holes 3 can fix different rotation positions of the first blocking plates 2, adapting to the limiting requirements after adjusting different opening sizes. The limiting structure is simple and reliable, reducing the complexity of adjustment operations and ensuring adjustment efficiency during field operations. When only individual adjustments are needed to the multiple material transfer troughs 16 on the material transfer cylinder 15, the corresponding position of the annular plate 41 can be rotated through the square groove 42. It is not necessary to adjust all the troughs simultaneously. Rotating the annular plate 41 clockwise causes multiple No. 2 blocking plates 4 to slide, which can reduce the opening at the material transfer trough 16. Conversely, rotating the annular plate 41 counterclockwise can enlarge the opening at the material transfer trough 16. This allows for flexible adaptation to the sowing requirements of localized plots in the field. For example, if some plots have insufficient fertility and require increased fertilizer application, or if some seeds have low germination rates and require increased sowing, the size of the opening at the corresponding position can be adjusted individually without changing the preset parameters of other positions. This provides greater flexibility and effectively adapts to the operational needs of irregular plots and plots with uneven fertility, ensuring the accuracy of sowing and fertilization. When rotating the annular plate 41 to adjust the position of the multiple No. 2 blocking plates 4, the limit position should be pressed first. Plate 51 slides into the interior of the seeder box 1, the second elastic element contracts and is subjected to force, the round rod on the limiting plate 51 disengages from the round hole of the locking plate 5, then the annular plate 41 and the locking plate 5 are rotated. After the rotation adjustment is completed, the limiting plate 51 is released, the elastic force of the second elastic element drives the limiting plate 51 to reset, and another round rod on the limiting plate 51 is inserted into the round hole of the locking plate 5 to lock the position of the annular plate 41. This reduces the situation where the annular plate 41 rotates on its own due to vibration during the operation of the rice combined direct seeding machine, ensuring that the opening size is maintained within the preset adjustment range, and further stabilizing the accuracy of sowing and fertilization. Through the positioning of the round hole and the round rod, the stroke of each rotation adjustment is fixed, which can control the range of change in the opening size. The operator can quickly adjust the corresponding opening size according to the needs without repeated comparison and adjustment, reducing the difficulty of adjustment operation and improving the adjustment efficiency of field operation. When rice seeds and fertilizer are temporarily stored in the storage trough 12, they can be poured separately into the storage trough 12 separated by the partition plate 111. The sealing plate 113, in conjunction with the triangular rubber block 114, is driven by an electric slider to seal the bottom of one of the triangular plates 112. This ensures that when fertilizer is used, the rice seeds in the storage trough 12 are sealed by the sealing plate 113 and the triangular rubber block 114, while the fertilizer is guided down the other triangular plate 112 and falls into the bottom of the storage trough 12. As the feed cylinder 15 rotates, the fertilizer is intermittently removed for fertilization. Simultaneously, the storage trough 12 separated by the partition plate 111 can not only separate and switch between rice seeds and fertilizer, but also separate according to different varieties of rice seeds or fertilizers, thus serving the purpose of separating and switching between different varieties of rice seeds or fertilizers. When rice seeds and fertilizer are fed out as the feed cylinder 15 rotates, the feed cylinder 15 rotates to collect the material from the storage trough 12 and send it to the feed cylinder 112. As the material is fed from the bottom of the discharge cylinder 15, multiple striking balls 122 in the vibrating groove continuously roll and fall, and these balls can strike multiple triangular metal blocks 121 to generate vibration. The vibration is transmitted to the transfer trough 16 on the discharge cylinder 15, which can reduce the material adhesion in the transfer trough 16, accelerate the falling of the material in the transfer trough 16, and reduce the probability of some material remaining in the transfer trough 16. When rice seeds and fertilizer are fed intermittently as the discharge cylinder 15 rotates, the material in the transfer trough 16 on the discharge cylinder 15 falls to multiple needle rods 131 as the transmission rod 14 rotates. Some clumps of material can hit the spiked top of the needle rod 131. The square bottom of the needle rod 131 is supported by a square plate. Then, the spiked top of the needle rod 131 breaks up the clumps of material, allowing the material to fall in a dispersed manner, reducing the impact of material clumping on its use. When rice seeds or fertilizer fall from the transfer trough 16, the material falls from the transfer trough 16 into the corrugated pipe 6, and then is discharged from the bottom of the sliding plate 61. If the falling position needs to be adjusted, the position of the sliding plate 61 can be moved and adjusted. The corrugated pipe 6 deforms accordingly. The corrugated pipe 6 and the sliding plate 61 cooperate to form an inclined feeding channel, adjusting the discharge port to the position of the corresponding sowing furrow. This reduces the waste caused by rice seeds or fertilizer falling into the gaps between rows, ensuring that the sowing and fertilization amount of each row meets the planting requirements, reducing the workload of subsequent reseeding and fertilization, and also reducing unnecessary loss of seeds and fertilizer, thus ensuring planting costs. At the same time, the inclined feeding channel can guide the material to slide down steadily, reducing the probability of material accumulating and getting stuck at the discharge port, reducing the interruption of feeding, and ensuring continuous direct seeding. When the sliding plate 61 is slid to adjust the material discharge port... When positioning, first, the two short rods 71 ​​are retracted into the interior of the seeder box 1. The two short rods 71 ​​slide out from the two second limiting holes 7, and the third elastic element contracts under force. Then, the sliding plate 61 is slid to the required material guiding position. After sliding, the elastic force of the third elastic element drives the short rods 71 ​​to reset. The two short rods 71 ​​are reinserted into the other two second limiting holes 7 to fix the adjusted position of the sliding plate 61. This reduces the possibility of the sliding plate 61 shifting position due to machine vibration during the operation of the seeder, ensuring that the discharge port is always aligned with the preset furrow position and reducing the probability of seed and fertilizer waste during operation. The multiple evenly distributed second limiting holes 7, combined with the insertion positioning, provide clear position adjustment gears to adapt to different planting requirements for ridge spacing, and make positioning operation simpler and less labor-intensive, meeting the needs of quick adjustment during field operations. During the sowing and fertilization process, the positions of guide plates 81, 81, and 82 are adjusted adaptively according to the required amount of sowing and fertilization. For rapid, batch sowing and fertilization, guide plates 81, 81, and 82 are slid away from the bottom of sliding plate 61, allowing for rapid material feeding through the largest opening at the bottom of sliding plate 61. Conversely, for gradual, precise sowing and fertilization, the sliding positions of guide plates 81, 81, and 82 are controlled according to the required opening size. From the first guide plate 8 to the second guide plate 81, and then to the third guide plate 82, the opening at the bottom gets smaller and smaller, thereby gradually reducing the material passage area of ​​the discharge port, achieving precise control of different amounts of sowing and fertilization, and improving the adaptability of the direct seeding machine to different planting needs; friction pads or positioning pins can be added between the sliding plate 61, the first guide plate 8, the second guide plate 81 and the third guide plate 82. After sliding and adjusting to the correct position, their positions are fixed, reducing the occurrence of automatic changes in the opening when encountering bumps and vibrations in field operations, and ensuring that the discharge volume is stable and controllable throughout the process; While sowing and fertilizing, furrowing is carried out. First, select different models of furrowing plates 9 according to the required furrow size. Thread multiple furrowing plates 9 are threaded onto the threaded rod at the bottom of the seeder box 1. As the tractor pulls the rice combined direct seeding machine, multiple furrowing plates 9 can carry out the furrowing process. When rice seeds and fertilizer are poured into multiple storage troughs 12, the flip cover 92 rotates on the fixed base 91 and covers the storage troughs 12 to shield them, reducing the amount of external impurities falling into the mixture in the storage troughs 12; at the same time, it reduces the waste caused by rice seeds and fertilizer splashing out of the storage troughs 12 due to bumps and vibrations during the machine's movement. When it is necessary to add rice seeds or fertilizer to the storage troughs 12, simply rotate the flip cover 92 upwards to complete the feeding operation, which is simple and convenient to use.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined rice direct seeding machine, characterized in that: The device includes a seeder box; a frame is fixedly connected to one side of the seeder box; multiple material storage troughs are provided on the seeder box; a servo motor is fixedly connected to one end of the seeder box; a transmission rod is fixedly connected to the output end of the servo motor, and the transmission rod is located at the internal center of the seeder box; multiple material leakage cylinders are fixedly connected to the transmission rod, and the material leakage cylinders are rotatably connected to the inside of the seeder box; multiple material transfer troughs are provided on the material leakage cylinders; an adjustment component is provided on the material leakage cylinders, and the adjustment component is used to adjust the size of the material transfer troughs.

2. The rice combined direct seeding machine according to claim 1, characterized in that: The adjustment assembly includes a first blocking plate, a sliding frame, a connecting cylinder, and a wheel; multiple first blocking plates are slidably connected to the discharge cylinder; two sliding frames are respectively fixed to both sides of the first blocking plate and are slidably connected to the discharge cylinder; the connecting cylinder is fixed to multiple sliding frames and is located between two discharge cylinders; the wheel is fixed to one end of a connecting cylinder.

3. The rice direct seeding machine according to claim 2, characterized in that: The seeder box has multiple No. 1 limiting holes on the side near the wheel; a pin is slidably connected to the wheel via a No. 1 elastic element, and the pin can be inserted into the No. 1 limiting hole.

4. A rice direct seeding machine according to claim 2, characterized in that: Multiple second-stage blocking plates are slidably connected to the material leakage cylinder, and the second-stage blocking plates are arranged opposite to the first-stage blocking plates. An annular plate is fixedly connected to the second-stage blocking plates. Multiple square slots are opened on one side of the annular plate on the seeder box. A snap-fit ​​plate is fixedly connected to the annular plate, and the snap-fit ​​plate has a round hole. A limit plate is slidably connected to the inner wall of the seeder box near the snap-fit ​​plate through a second elastic element, and multiple round rods are fixedly connected to one end of the limit plate near the snap-fit ​​plate.

5. A rice direct seeding machine according to claim 1, characterized in that: A partition plate is fixedly attached to the center of the storage trough on the seeder box; triangular plates are fixedly attached to both sides of the bottom of the partition plate; a sealing plate is slidably connected to the bottom of the partition plate and the triangular plates via an electric slider; and triangular rubber blocks are fixedly attached to both sides of the sealing plate.

6. A rice combined direct seeding machine according to claim 1, characterized in that: The inside of the material discharge cylinder is provided with a vibrating groove; multiple triangular metal blocks are fixed in the vibrating groove; and multiple striking balls are provided in the vibrating groove.

7. A rice direct seeding machine according to claim 1, characterized in that: Multiple needle rods are fixed inside the seeder box. The needle rods are located below the material leakage cylinder. The top of the needle rod is set as a spike, and the bottom of the needle rod is set as a square. A square plate is fixed to the bottom of the multiple needle rods.

8. A rice direct seeding machine according to claim 1, characterized in that: A corrugated pipe is fixedly connected to the bottom of the seeder box; a sliding plate is fixedly connected to the bottom of the corrugated pipe, and the sliding plate is slidably connected to the inner wall of the seeder box; a plurality of second-position limiting holes are opened at the bottom of the seeder box near the sliding plate; a short rod is slidably connected to the bottom of the sliding plate through a third elastic element.

9. A rice direct seeding machine according to claim 8, characterized in that: The bottom end of the sliding plate is slidably connected to a first guide plate; the bottom end of the first guide plate is slidably connected to a second guide plate; and the bottom end of the second guide plate is slidably connected to a third guide plate.

10. A rice direct seeding machine according to claim 1, characterized in that: A threaded rod is fixedly connected to the bottom of the seeder box; a furrowing plate is threadedly connected to the bottom of the threaded rod; a fixed seat is fixedly connected to the seeder box near the material storage trough; a flip cover plate is rotatably connected to the fixed seat.

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