Sowing manipulator based on dry rice crops

By designing a robotic hand for sowing dry rice, the cooperation of the conveyor belt and soil extraction hand is used to achieve accurate injection of rice seeds in the soil, and the nutrient solution is synchronized through the liquid injection mechanism, the problem of soil slab solidification is solved, and the seeding efficiency and crop growth performance are improved.

CN120130217AActive Publication Date: 2025-06-13XINJIANG WESTERN OASIS ECOLOGIC DEV LTD
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Patent Information

Application Number
CN202510631223.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2025-06-13
Estimated Expiration
2045-05-16

AI Technical Summary

Technical Problem

The prior art is difficult to effectively solve the problem of soil slab formation during the sowing process of dry rice, resulting in the failure of rice seeds to fully contact the soil, affecting germination, and the sowing process is time-consuming and frequent failures.

Method used

A seeding robot based on dry rice crops was designed, and the rice seeds were discharged quantitatively using a conveyor belt. Through the cooperation of the soil extraction hand and the bottom insertion rod, the soil mass was gathered on the ground and the rice seeds were injected into the center of the soil mass. At the same time, a liquid injection mechanism was set up to inject nutrient solution simultaneously.

Benefits of technology

The accurate placement of rice seeds is achieved, ensuring the uniform number and distribution of seeds at each sowing point, reducing seed waste, improving sowing efficiency, and simultaneously injecting nutrient solution, enhancing soil fertility and improving seed germination rate and growth rate.

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Abstract

The invention discloses a sowing mechanical arm based on dry rice crops, and relates to the field of crop sowing, the sowing mechanical arm comprises a containing bin, a conveying belt is arranged in the containing bin, the conveying belt is used for quantitatively discharging crop particles, and two supporting frames are symmetrically and fixedly connected to the bottom end of the containing bin; two soil taking hands are symmetrically arranged at the bottom ends of the two supporting frames, the soil taking hands are used for conducting circulating opening and closing soil taking operation along with the rotating process of the conveying belt, and soil balls are gathered on the ground in situ in the opening and closing process, and the bottom inserting rods are used for conducting circulating triggering along with movement of the soil taking hands to inject crop particles into the centers of the soil balls. During sowing, accurate seed throwing is achieved, a soil bowl body is directly formed on the ground through the design of light soil crushing and heavy coating, rice seeds are conveyed to the center, the rice seeds are fully coated with the soil bowl body, and a rice seed-containing bowl-shaped soil block is formed and directly generated in a field.
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Description

Technical Field

[0001] The present invention relates to the technical field of crop sowing, and specifically to a sowing manipulator based on upland rice crops. Background Art

[0002] With the acceleration of the process of agricultural modernization, the traditional manual sowing method has gradually been replaced by automated equipment. Upland rice is a rice variety suitable for planting in arid or water-scarce areas. During its planting process, it has relatively high requirements for the soil and needs to precisely control the sowing depth and sowing density. Therefore, special mechanical equipment is required to ensure the adaptability of crop growth. In recent years, more and more farmers and agricultural enterprises have begun to pay attention to precision agriculture and use automated equipment to improve the growth efficiency and yield of crops.

[0003] However, due to differences in soil texture in different regions, for example, in water-deficient areas, the soil will become compacted. Even after loosening the soil, with the change of day and night climate and the increase in air humidity, the soil will instead condense into lumps. There are large gaps between the soil lumps, resulting in some rice seeds not being able to fully contact the soil and be wrapped by the soil during sowing, which in turn affects germination and is also easily eaten by animals such as birds or rats.

[0004] The prior art has a method of collecting field soil, making nutrient bowls, putting rice seeds into the nutrient bowls, and then sowing. However, this process is time-consuming. The made nutrient bowls are prone to directly loosen inside the machine due to insufficient soil quality and water content. And when increasing the water content of the nutrient bowls, such as applying additional water and fertilizer or directly adding water, it is easy for the nutrient bowls to stick inside the machine, with low practicability and frequent failures. Summary of the Invention

[0005] (1) Technical problems to be solved: Aiming at the above-mentioned shortcomings of the prior art, the present invention provides a sowing manipulator based on upland rice crops, which can effectively solve the problems of the prior art.

[0006] (2) Technical solutions: To achieve the above objectives, the present invention is realized through the following technical solutions.

[0007] The present invention discloses a seeding manipulator based on upland rice crops, including a storage bin. A conveyor belt is arranged inside the storage bin, which is used for quantitatively discharging crop particles. One end inside the conveyor belt is provided with a first transmission shaft, and the other end inside the conveyor belt is provided with a second transmission shaft. The front end of the storage bin is fixedly connected with a top sleeve rod, and the bottom end of the top sleeve rod is slidably connected with a bottom insertion rod. The bottom end of the storage bin is symmetrically and fixedly connected with two support frames, and two soil-taking hands are symmetrically arranged at the bottom ends of the two support frames. The soil-taking hands are used to perform a cyclic opening and closing soil-taking operation following the rotation process of the conveyor belt, and in the opening and closing process, soil masses are gathered in place on the ground. The bottom insertion rod is used to be cyclically triggered following the movement of the soil-taking hands to inject crop particles into the center of the soil mass. A liquid injection mechanism is arranged at the bottom end of the storage bin, and the liquid injection mechanism is used to synchronously inject nutrient liquid into the center of the soil mass during the process of injecting crop particles into the center of the soil mass.

[0008] Furthermore, accommodation grooves are evenly formed on the surface of the conveyor belt, and elastic bands are arranged inside the accommodation grooves. The edges of the elastic bands are fixedly connected with the inner walls of the accommodation grooves. The top ends of the second transmission shaft are evenly and fixedly connected with top blocks, and one end of one top block extends into the interior of one accommodation groove, and the top block abuts against the elastic band extending into the corresponding accommodation groove interior.

[0009] Furthermore, the left end of the second transmission shaft passes through the storage bin and is fixedly connected with a turntable. The top end of the left side of the turntable is rotatably connected with a movable swing rod, and the bottom end of the movable swing rod is fixedly connected with a connecting plate, and the connecting plate is sleeved on the surface of the top sleeve rod.

[0010] Furthermore, the left and right ends of the first transmission shaft and the second transmission shaft are rotatably connected with the inner wall of the storage bin, and the right end of the second transmission shaft passes through the storage bin and extends to the outside of the storage bin.

[0011] Furthermore, the front and rear ends of the bottom surface of the support frame respectively penetrate through one side of the two soil-taking hands, and the support frame is slidably connected with the soil-taking hands.

[0012] Furthermore, the liquid injection mechanism includes a water delivery pipe. One end of the water delivery pipe is fixedly connected with the bottom end of the storage bin, and the side surface of the water delivery pipe is evenly communicated with water distribution pipes. The left and right ends of the water distribution pipes are inserted into the interior of the bottom insertion rod.

[0013] Furthermore, the left end of the water delivery pipe is a water inlet, the medium conveyed by the water delivery pipe is split and diverted to the water distribution pipes and discharged to the top sleeve rod, and the water delivery pipe synchronously injects the medium following the downward movement of the bottom insertion rod.

[0014] Furthermore, the bottom ends of the two soil-taking hands are in a curved shovel shape, and the two soil-taking hands perform cyclic approaching or separating actions following the continuous cycle of the second transmission shaft.

[0015] Furthermore, tooth blocks are uniformly and fixedly connected to both the left and right sides of the surfaces of the first transmission shaft and the second transmission shaft, and tooth grooves corresponding to the tooth blocks on the surfaces of the first transmission shaft and the second transmission shaft are formed on the inner wall of the conveyor belt.

[0016] (III) Beneficial effects: By adopting the technical solution provided by the present invention, compared with the known prior art, the following beneficial effects are achieved. 1. The rice seeds are quantitatively taken out through the conveyor belt. As the conveyor belt rotates, single rice seeds are discharged towards the top sleeve rod, and two soil-taking hands are driven to move downward and close together, gathering the ground soil into a ball in place. And as the soil balls inside the two soil-taking hands are completely formed, the bottom inserting rod is inserted into the center of the soil ball, so that the rice seeds are discharged into the center of the soil ball from the top sleeve rod through the bottom inserting rod. Thus, during the sowing period, accurate seed placement is realized, the number and distribution of seeds at each sowing point are ensured to be uniform, seed waste is reduced, and the sowing efficiency is improved. With the design of light soil crushing and heavy coating, a soil ball body is directly formed on the ground, and rice seeds are conveyed towards the center, so that the rice seeds are fully coated therein, forming a soil mass block containing rice seeds, which is directly generated in the field.

[0017] 2. By providing a liquid injection mechanism, when the nutrient medium enters through the water delivery pipe and is injected into the bottom inserting rod through the water distribution pipe, the nutrient medium is injected into the soil ball along with the rice seeds, so that nutrient liquid can be injected into the center of the soil ball while sowing, which helps to enhance the fertility of the soil, improve the germination rate and growth rate of seeds, combines the comprehensive operation processes of sowing and fertilizing, helps to reduce the time of agricultural activities, and improves the overall operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present invention.

[0020] Figure 2 It is a schematic side-sectional structure diagram of the present invention.

[0021] Figure 3 For the present invention Figure 2 It is a schematic diagram of a partial enlarged structure at A in the present invention.

[0022] Figure 4 It is a schematic three-dimensional structure diagram of the second transmission shaft, the movable swing rod, the turntable and the top block in the present invention.

[0023] Figure 5Schematic diagram of the overall three-dimensional structure from another angle of the present invention.

[0024] Figure 6 For the present invention Figure 5 Partial enlarged structure schematic diagram at position B in the present invention.

[0025] Figure 7 Schematic diagram of the three-dimensional structure of the support frame and the soil-taking hand in the present invention.

[0026] Figure 8 Partial three-dimensional structure schematic diagram of the water delivery pipe, the bottom inserting rod and the water distribution pipe in the present invention.

[0027] The reference numerals in the figure respectively represent: 1, receiving bin; 2, conveyor belt; 3, first drive shaft; 4, receiving groove; 5, elastic band; 6, second drive shaft; 7, top block; 8, top sleeve rod; 9, bottom inserting rod; 10, connecting plate; 11, movable swing rod; 12, turntable; 13, support frame; 14, soil-taking hand; 15, water delivery pipe; 16, water distribution pipe. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] The present invention will be further described below with reference to the embodiments.

[0030] Embodiment 1: A seeding manipulator based on upland rice crops in this embodiment, as Figures 1 - 8 shown, includes a receiving bin 1. Inside the receiving bin 1, there is a conveyor belt 2 for quantitatively discharging crop particles. At one end inside the conveyor belt 2, there is a first drive shaft 3, and at the other end inside the conveyor belt 2, there is a second drive shaft 6. The left end of the second drive shaft 6 passes through the receiving bin 1 and is fixedly connected to a turntable 12. The top end on the left side of the turntable 12 is rotatably connected to a movable swing rod 11. The bottom end of the movable swing rod 11 is fixedly connected to a connecting plate 10. The connecting plate 10 is sleeved on the surface of the top sleeve rod 8. The left and right ends of the first drive shaft 3 and the second drive shaft 6 are rotatably connected to the inner wall of the receiving bin 1. The right end of the second drive shaft 6 passes through the receiving bin 1 and extends to the outside of the receiving bin 1. On the left and right sides of the surfaces of the first drive shaft 3 and the second drive shaft 6, there are uniformly fixedly connected tooth blocks, and on the inner wall of the conveyor belt 2, there are tooth grooves corresponding to the tooth blocks on the surfaces of the first drive shaft 3 and the second drive shaft 6.

[0031] A top sleeve rod 8 is fixedly connected to the front end of the accommodation bin 1. A bottom insertion rod 9 is slidably connected to the bottom end of the top sleeve rod 8. Two support frames 13 are symmetrically and fixedly connected to the bottom end of the accommodation bin 1. Two soil-taking hands 14 are symmetrically arranged at the bottom ends of the two support frames 13. The front and rear ends of the bottom surface of the support frame 13 penetrate through one side of the two soil-taking hands 14 respectively. The support frame 13 is slidably connected to the soil-taking hand 14. The soil-taking hand 14 is used to perform a cyclic opening and closing soil-taking operation following the rotation process of the conveyor belt 2. During the opening and closing process, soil masses are gathered in place on the ground. The bottom insertion rod 9 is used to be cyclically triggered following the movement of the soil-taking hand 14 to inject crop particles into the center of the soil mass. The bottom ends of the two soil-taking hands 14 are in a curved shovel shape. As the second transmission shaft 6 continues to cycle, the two soil-taking hands 14 perform cyclic actions of approaching or moving away from each other.

[0032] Accommodation grooves 4 are evenly formed on the surface of the conveyor belt 2. Elastic bands 5 are arranged inside the accommodation grooves 4. The edges of the elastic bands 5 are fixedly connected to the inner walls of the accommodation grooves 4. Top blocks 7 are evenly and fixedly connected to the top end of the second transmission shaft 6. One end of a top block 7 extends into the interior of an accommodation groove 4. The top block 7 abuts against the elastic band 5 inside the accommodation groove 4 corresponding to its extension. The elastic band 5 is made of rubber, has the ability of elastic deformation, and has the ability of resilience when not being abutted.

[0033] Compared with the prior art, through a quantitative crop particle emission mechanism, it is ensured that there is an accurate number of seeds at each sowing point, effectively avoiding the phenomenon of too many or too few seeds that may occur in traditional sowing, thereby improving the consistency of sowing. By using the design of the soil-taking hand 14 and the bottom insertion rod 9, rice seeds are injected into the center of the soil mass, ensuring that the rice seeds are fully coated in the soil and reducing the waste caused by seed scattering or being washed away by wind and rain.

[0034] Combining the design of heavy coating and light soil crushing, it can directly form soil masses quickly on the ground, and accurately inject rice seeds into the center of the soil mass during this process, significantly improving the sowing efficiency, being suitable for large-area farmland operations, and being able to gather soil in place to form soil masses during sowing, which helps to maintain the structure and moisture of the soil and improve the environmental suitability for crop growth.

[0035] The recyclable opening and closing soil-taking operation and the sliding connection structure in the design make the movement of the device more flexible, adapt to different terrains and soil conditions. Compared with the traditional manual sowing method, it can significantly reduce the labor intensity of farmers and improve the convenience and efficiency of operations.

[0036] Embodiment 2: On other levels, this embodiment also provides another optimization mechanism based on Embodiment 1, specifically a liquid injection mechanism of a sowing manipulator for upland rice crops, as Figure 8As shown in the figure, a liquid injection mechanism is provided at the bottom of the accommodation bin 1. The liquid injection mechanism is used to synchronously inject nutrient liquid into the center of the soil mass during the process of injecting crop particles into the center of the soil mass. The left end of the water delivery pipe 15 is the water inlet. The medium transported by the water delivery pipe 15 is diverted to the water distribution pipes 16 and discharged to the top sleeve rod 8. The water delivery pipe 15 injects the medium synchronously with the downward movement of the bottom insertion rod 9.

[0037] Compared with the prior art, traditional sowing techniques usually cannot provide nutrient solution around the seeds simultaneously. Synchronously injecting nutrient solution can provide the required water and nutrients for rice seeds, promote seed germination and early growth, thereby increasing the germination rate and survival rate. By directly injecting the nutrient solution into the center of the soil mass, it can timely improve the moisture and nutrient conditions of the soil, help create a suitable growth environment, and enhance the nutrient supply capacity of the soil, especially more obvious in arid or infertile soils. Since the nutrient solution is injected synchronously during sowing, it ensures that the nutrients can be evenly distributed around the seeds, helping each seed to obtain sufficient nutrition and thus promoting uniform growth.

[0038] Working principle: Before using the present invention, the user installs the device at the front end of an agricultural tractor with walking ability and fixes it by screwing. The user needs to install a motor at the right end of the accommodation bin 1, as Figure 5 shown, so that the output shaft of the motor is fixedly connected to the right end of the second transmission shaft 6, as Figure 6 shown, installs a water pump at the right end of the water delivery pipe 15, so that the water outlet end of the water pump is connected to the water delivery pipe 15, and the water inlet end of the water pump is externally connected to a water source. The water pump supplies water intermittently, and the trigger condition for water supply is the downward movement of the bottom insertion rod 9.

[0039] When the present invention is specifically implemented, the user can inject rice seeds into the accommodation bin 1 through the top of the accommodation bin 1, start the motor, so that the second transmission shaft 6 rotates. Under the cooperative transmission of the first transmission shaft 3, the conveyor belt 2 rotates circularly relying on the first transmission shaft 3 and the second transmission shaft 6, as Figure 2 shown, so that a single rice seed first enters the accommodation groove 4 in the upper half of the top of the conveyor belt 2. With the conveying process, the accommodation bin 1 blocks the excess rice seeds at the upper half of the top of the conveyor belt 2. The single rice seed is conveyed to the lower half of the conveyor belt 2. At this time, the top block 7 abuts against the elastic belt 5 and is pushed into the accommodation groove 4, so that the rice seed originally inside the accommodation groove 4 is pushed out. The rice seed slides down through the conveyor belt 2 and slides into the top sleeve rod 8.

[0040] During the rotation of the second transmission shaft 6, the turntable 12 is synchronously driven to rotate. The turntable 12 drives the movable swing rod 11 to rotate eccentrically, causing the movable swing rod 11 to pull the connecting plate 10 to swing reciprocally. Under the limitation of the moving track of the soil-taking hand 14 by the support frame 13, the connecting plate 10 drives the bottom inserting rod 9 to reciprocally extend and retract in the top sleeve rod 8. During this process, the soil-taking hand 14 reciprocally slides at the bottom of the support frame 13, causing the two soil-taking hands 14 to continuously perform the operations of moving down and gathering and then rising and separating. During the process of moving down and gathering, the ground soil is condensed into a soil mass. At this time, the bottom inserting rod 9 moves downward synchronously with the gathering of the soil-taking hand 14 and inserts into the center of the soil mass, enabling the rice seeds that originally slid into the top sleeve rod 8 to enter the center of the soil mass through the bottom inserting rod 9.

[0041] As the bottom inserting rod 9 descends, the water supply operation of the water delivery pipe 15 is triggered, enabling the nutrient medium to be split through the water delivery pipe 15 to the water distribution pipes 16 and then injected into the bottom inserting rod 9 through the water distribution pipes 16, and injected into the center of the soil mass together with the rice seeds. With the continuous advancement of the tractor and the continuous rotation of the second transmission shaft 6, the sowing work is continuously completed.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sowing manipulator based on upland rice crops, characterized in that: The invention comprises a storage bin (1), wherein a conveyor belt (2) is arranged inside the storage bin (1), wherein the conveyor belt (2) is used for quantitative crop particle discharge, wherein a transmission shaft 1 (3) is arranged at one end inside the conveyor belt (2), and a transmission shaft 2 (6) is arranged at the other end inside the conveyor belt (2), wherein a top sleeve rod (8) is fixedly connected to the front end of the storage bin (1), wherein a bottom insertion rod (9) is slidably connected to the bottom end of the top sleeve rod (8), and wherein two support frames (13) are symmetrically fixedly connected to the bottom end of the storage bin (1), wherein the two support frames (13) are symmetrically fixedly connected to the bottom end of the storage bin (1), and the ... Two soil grabbers (14) are symmetrically arranged at the bottom end of each support frame (13). The soil grabbers (14) are used to follow the rotation process of the conveyor belt (2) to perform a cyclic opening and closing soil grabbing operation. During the opening and closing process, soil balls are gathered in situ on the ground. The bottom insertion rod (9) is used to follow the movement cycle of the soil grabber (14) to trigger and inject crop particles into the center of the soil ball. The bottom end of the storage bin (1) is provided with a liquid injection mechanism. The liquid injection mechanism is used to synchronously inject nutrient liquid into the center of the soil ball during the process of injecting crop particles into the center of the soil ball.

2. A sowing manipulator based on upland rice crops according to claim 1, characterized in that: The surface of the conveyor belt (2) is evenly provided with receiving grooves (4), and the inside of the receiving grooves (4) is provided with elastic bands (5), and the edges of the elastic bands (5) are fixedly connected to the inner wall of the receiving grooves (4). The top end of the second transmission shaft (6) is evenly fixedly connected with a top block (7), and one end of one of the top blocks (7) extends into the inside of one of the receiving grooves (4), and the top block (7) conflicts with the elastic band (5) inside the corresponding receiving groove (4) to which it extends.

3. A sowing manipulator based on upland rice crops according to claim 1, characterized in that: The left end of the second transmission shaft (6) passes through the accommodating bin (1) and is fixedly connected to a turntable (12); the top end of the left side of the turntable (12) is rotatably connected to a movable swing rod (11); the bottom end of the movable swing rod (11) is fixedly connected to a connecting plate (10); and the connecting plate (10) is sleeved on the surface of the top sleeve rod (8).

4. A sowing manipulator based on upland rice crops according to claim 1, characterized in that: The left and right ends of the transmission shaft 1 (3) and the transmission shaft 2 (6) are both rotatably connected to the inner wall of the accommodating chamber (1), and the right end of the transmission shaft 2 (6) passes through the accommodating chamber (1) and extends to the outside of the accommodating chamber (1).

5. The sowing manipulator based on upland rice crops according to claim 1 is characterized in that: The front and rear ends of the bottom surface of the support frame (13) respectively penetrate one side of two soil taking hands (14), and the support frame (13) is slidably connected to the soil taking hands (14).

6. The sowing manipulator based on upland rice crops according to claim 1, characterized in that: The liquid injection mechanism comprises a water delivery pipe (15), one end of which is fixedly connected to the bottom end of the containing chamber (1), the side of the water delivery pipe (15) is evenly connected to a water distribution pipe (16), and the left and right ends of the water distribution pipe (16) are both inserted into the interior of the bottom insertion rod (9).

7. A sowing manipulator based on upland rice crops according to claim 6, characterized in that: The left end of the water delivery pipe (15) is a water inlet. The medium delivered by the water delivery pipe (15) is diverted to the water distribution pipe (16) and discharged to the top sleeve rod (8). The water delivery pipe (15) injects the medium synchronously with the descending movement of the bottom insertion rod (9).

8. The sowing manipulator based on upland rice crops according to claim 1, characterized in that: The bottom ends of the two soil grabbing hands (14) are in the shape of a curved shovel. The two soil grabbing hands (14) move towards or away from each other in a cyclic manner as the second transmission shaft (6) continues to circulate.

9. The sowing manipulator based on upland rice crops according to claim 1, characterized in that: The left and right sides of the surfaces of the transmission shaft one (3) and the transmission shaft two (6) are evenly and fixedly connected with tooth blocks, and the inner wall of the conveyor belt (2) is provided with tooth grooves corresponding to the tooth blocks on the surfaces of the transmission shaft one (3) and the transmission shaft two (6).

Citation Information

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