A weeding device for smart agriculture

Abstract

This utility model discloses a weeding device for intelligent agriculture, including a frame with support wheels, a drive motor, and a transmission component consisting of chains and sprockets. Its innovation lies in transmitting power to a linkage assembly consisting of drive wheels, drive arms, and connecting arms via a connecting shaft, thereby driving a screening component to perform high-frequency reciprocating vibration. This screening component integrates a harvesting blade and a screening frame with sieve holes at the bottom, enabling immediate vibration screening of weed residues after integrated weed cutting. This design effectively achieves the fine separation of fine organic matter from weed clumps, stones, plastic film, and other impurities, significantly improving the automation and overall efficiency of weeding operations. Furthermore, it reduces weed seed return and impurity residue at the source, achieving the dual technical effects of returning pure organic matter to the field to improve soil and blocking the weed cycle, fully demonstrating the resource utilization and precision operation advantages of intelligent agricultural equipment.

Description

Technical Field

[0001] This utility model relates to the field of agricultural weeding device technology, specifically a weeding device for intelligent agriculture. Background Technology

[0002] Agricultural weeding devices are specialized mechanical equipment used in modern agriculture to remove weeds from fields. Their core purpose is to replace arduous and inefficient manual weeding, thereby improving operational efficiency, reducing production costs, and decreasing the use of chemical herbicides, aligning with the concept of green and sustainable agricultural development. Traditional weeding devices mainly rely on mechanical cutting or rotary tillage, using high-speed rotating blades or toothed discs to cut or crush surface weeds, thus inhibiting their growth. With the development of precision agriculture and intelligent technology, modern weeding devices are gradually integrating sensors, machine vision, and automatic control technologies, enabling them to identify crops and weeds and perform targeted and precise removal, becoming an important component of intelligent agricultural equipment systems.

[0003] While existing weeding devices have achieved some success in weed control, their functions remain relatively limited, and they generally suffer from a significant drawback: they cannot effectively screen and process the cut weed debris for resource recovery. Specifically, most current devices simply scatter or leave the weed fragments on the field surface after cutting. This method may result in the inability to separate field debris such as plastic film and stones mixed in with the weeds, affecting the soil environment and subsequent agricultural operations. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a weeding device for intelligent agriculture, which has the advantages of being able to sieve harvested weeds. It solves the problem in existing technologies that field debris such as plastic film and stones present in harvested weeds cannot be separated, which affects the soil environment and subsequent agricultural operations.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a weeding device for intelligent agriculture, comprising a frame, a support wheel at the bottom of the frame, a transmission motor for transmission on one side, a crossbar for connection in the middle, and an installation component for installation at the other end. The output shaft of the drive motor is connected to a transmission component, and the transmission component is connected to a connecting shaft, which is mounted on the mounting component. The connecting shaft is driven by a linkage component. One end of the linkage component is mounted on the crossbar, and the other end is driven by a screening component. The screening component is elastically mounted on the frame.

[0006] Furthermore, the transmission component consists of a chain and sprockets. The sprockets are respectively mounted on the output shaft and the connecting shaft of the transmission motor, and the two sprockets are connected by the chain.

[0007] Furthermore, the linkage component includes a transmission wheel mounted on a connecting shaft, a first transmission arm connected to the edge of the transmission wheel, a second transmission arm rotatably connected to the other end of the first transmission arm, a connecting arm rotatably connected to the other end of the second transmission arm, the top of the connecting arm rotatably connected to the crossbar, and an mounting collar provided at the other end of the connecting arm and connected to the screening component through the mounting collar, for controlling the screening component to achieve reciprocating motion.

[0008] Furthermore, the screening component includes a mounting frame, one end of which is provided with a harvesting blade for harvesting weeds, and a screening frame for screening is provided inside the mounting frame. One end of the mounting frame is provided with a mounting arm rotatably connected to the vehicle frame, and the other end is provided with a connecting spring elastically connected to the vehicle frame. The mounting frame is also provided with a mounting collar.

[0009] Furthermore, the mounting component includes a mounting platform fixedly mounted on the vehicle frame, with two bearing seats provided on the top of the mounting platform, and the connecting shaft mounted on the bearing seats.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects: I. This weeding device for intelligent agriculture integrates the harvesting head and the vibrating screening frame into one unit, working synchronously under the drive of a linkage component. While cutting weeds, the device immediately screens the weed residue. This design combines the traditional work requiring multiple devices and steps into a single continuous automated process, significantly reducing manual labor intensity and time costs. Simultaneously, the vibrating screening effectively separates soil and fine organic matter, allowing them to be directly returned to the field, while retaining larger impurities and weed clumps in the screening frame. This avoids secondary pollution of the soil by plastics, stones, etc., resulting in a cleaner field environment.

[0011] II. This weeding device for intelligent agriculture employs a drive motor coupled with a chain and sprocket transmission method, ensuring stable and efficient power transmission. The core linkage component utilizes the principle of a crank-rocker mechanism to precisely convert the rotational motion of the connecting shaft into the horizontal reciprocating vibration required by the screening components, resulting in a simple structure and high mechanical efficiency. Furthermore, the mounting frame is elastically connected to the chassis via connecting springs, providing not only the necessary restoring force for vibration but also excellent buffering and shock absorption, effectively absorbing impact loads during operation and protecting all transmission components. This ensures the device can operate stably and reliably for extended periods in complex field environments, extending the equipment's service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic diagram of the screening component structure of this utility model; Figure 4 This is a schematic diagram of the linkage component structure of this utility model.

[0013] In the diagram: 1. Frame; 11. Support wheel; 12. Drive motor; 13. Transmission component; 14. Connecting shaft; 15. Mounting component; 2. Linkage assembly; 21. Drive wheel; 22. First drive arm; 23. Second drive arm; 24. Connecting arm; 25. Mounting collar; 3. Screening assembly; 31. Mounting frame; 32. Mounting arm; 33. Screening frame; 34. Harvesting blade; 35. Connecting rod; 36. Connecting spring. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figures 1 to 4 As shown, this invention provides a weeding device for intelligent agriculture. The device includes a frame 1 serving as the main support structure. Support wheels 11 are mounted at the front and rear of the bottom of the frame 1, allowing the entire device to move flexibly in the field. A drive motor 12 is fixedly mounted on one side of the frame 1, serving as the power source for the device. A transverse crossbar is welded to the middle of the frame 1 for mounting other components. A mounting component 15 is provided at the other end of the frame 1, specifically consisting of a mounting platform fixedly mounted on the frame 1 and two bearing seats on the top of the mounting platform.

[0016] A sprocket is mounted on the output shaft of the drive motor 12. A connecting shaft 14 is supported by a bearing on the bearing seat of the mounting component 15, and a sprocket is also mounted at the corresponding position on the connecting shaft 14. A chain meshes with these two sprockets, thus forming the transmission component 13. When the drive motor 12 starts, power is precisely transmitted to the connecting shaft 14 through the transmission component 13, causing it to rotate continuously.

[0017] The connecting shaft 14 is connected to a linkage assembly 2. The linkage assembly 2 includes a transmission wheel 21 fixedly mounted on the connecting shaft 14. A first transmission arm 22 is hinged to the edge of the transmission wheel 21 (i.e., the non-center position). A second transmission arm 23 is hinged to the other end of the first transmission arm 22. A connecting arm 24 is hinged to the end of the second transmission arm 23. The top of the connecting arm 24 is hinged to the crossbar in the middle of the frame 1, forming a fulcrum; a mounting collar 25 is fixed to its bottom.

[0018] The end of the linkage component 2 (i.e., the mounting collar 25) is connected to and drives a screening component 3. The screening component 3 mainly includes a rectangular mounting frame 31. One end of the mounting frame 31 is rotatably connected to the frame 1 via a mounting arm 32, similar to a hinge point. The other end of the mounting frame 31 is elastically connected to the frame 1 via a set of connecting springs 36. Inside the mounting frame 31, a detachable screening frame 33 is embedded, and the bottom of the screening frame 33 is covered with sieve holes. A drive arm 35 is also provided on the side of the mounting frame 31 facing the linkage component 2, and the end of the drive arm 35 is fixedly connected to the aforementioned mounting collar 25. In addition, a harvesting blade 34 for cutting weeds is integrated and installed at the front end of the mounting frame 31.

[0019] Working principle: During field operations, the operator pushes the device or it is pulled by other power sources to move it forward. First, the drive motor 12 is started, and the power is transmitted to the connecting shaft 14 via the transmission component 13, causing the transmission wheel 21 to rotate at a constant speed. The rotational motion of the transmission wheel 21 is converted into the reciprocating oscillation of the connecting arm 24 around its top hinge point through the first transmission arm 22 and the second transmission arm 23. This oscillation is transmitted to the entire screening assembly 3 through the mounting collar 25 and the drive arm 35.

[0020] Therefore, under the elastic cooperation of the connecting spring 36, the screening component 3 reciprocates in the horizontal plane with the mounting arm 32 as the fulcrum. As the device moves forward, the harvesting blade 34 cuts the weeds, and the chopped weeds are then thrown or swept into the screening frame 33 behind. Under the action of strong vibration, fine soil and weed clippings smaller than the sieve holes are quickly screened off and evenly returned to the field; while larger weed clumps, tangled grass stems, and impurities such as stones and plastic film that may be mixed in are left in the screening frame 33 and gradually move towards the rear with the vibration, and can eventually be collected or processed separately; further, workers can add a weed collection component at the rear of the screening frame 33 to collect the harvested weeds.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A weeding device for smart agriculture, comprising a frame (1), characterized in that: The bottom of the frame (1) is provided with a support wheel (11), a transmission motor (12) for transmission is provided on one side, a crossbar for connection is provided in the middle, and a mounting part (15) for installation is provided at the other end. The output shaft of the drive motor (12) is connected to a drive component (13), and the drive component (13) is connected to a connecting shaft (14), which is mounted on the mounting component (15). The connecting shaft (14) is connected to a linkage component (2). One end of the linkage component (2) is mounted on the crossbar, and the other end is connected to a screening component (3). The screening component (3) is elastically mounted on the frame (1).

2. The weeding device for intelligent agriculture according to claim 1, characterized in that: The transmission component (13) consists of a chain and sprockets. The sprockets are respectively installed on the output shaft and the connecting shaft (14) of the transmission motor (12), and the two sprockets are connected by a chain.

3. A weeding device for intelligent agriculture according to claim 1, characterized in that: The linkage component (2) includes a transmission wheel (21) mounted on a connecting shaft (14). A first transmission arm (22) is connected to the edge of the transmission wheel (21). A second transmission arm (23) is rotatably connected to the other end of the first transmission arm (22). A connecting arm (24) is rotatably connected to the other end of the second transmission arm (23). The top of the connecting arm (24) is rotatably connected to the crossbar. An installation collar (25) is provided at the other end of the connecting arm (24) and connected to the screening component (3) through the installation collar (25) to control the screening component (3) to achieve reciprocating motion.

4. A weeding device for intelligent agriculture according to claim 1, characterized in that: The screening component (3) includes a mounting frame (31), one end of which is provided with a harvesting blade (34) for harvesting weeds, and a screening frame (33) for screening is provided inside the mounting frame (31). One end of the mounting frame (31) is provided with a mounting arm (32) rotatably connected to the frame (1), and the other end is provided with a connecting spring (36) elastically connected to the frame (1). The mounting frame (31) is also provided with (35), which is connected to the mounting collar (25).

5. A weeding device for intelligent agriculture according to claim 1, characterized in that: The mounting component (15) includes a mounting platform fixedly mounted on the frame (1), and two bearing seats are provided on the top of the mounting platform. The connecting shaft (14) is mounted on the bearing seats.

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