Agricultural mechanical weeding device

Abstract

The invention discloses an agricultural mechanical weeding device, and relates to the technical field of forestry, the agricultural mechanical weeding device comprises a weeder, the top of the weeder is fixedly connected with a motor, the top of the weeder is hinged with a push handle, two sides of the weeder are provided with rollers through a connecting shaft, and the bottom of the weeder is provided with a weeding adaptation mechanism. Therefore, when the rotary blade is used for weeding, the rotary blade can be automatically jacked up along with pits and uneven protruding stones on a road surface, and the situation that when the rotary blade cuts and crushes weeds, the sharp end of the rotary blade hits the stones and soil, and consequently the rotary blade cracks and splashes to hurt people can be effectively prevented; the situation that the lawn is in a state similar to alopecia areata due to the fact that the soil is damaged by the rotary blade is avoided, workers are protected, the soil in forestry work is also protected, and the wider adaptability of the weeder to various uneven road surfaces is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of forestry, and specifically to a weeding device for agricultural machinery. Background Art

[0002] A lawn mower is also known as a weeding machine, a grass cutting machine, a lawn trimming machine, etc. A lawn mower is a mechanical tool used for trimming lawns, vegetation, etc. It consists of a cutter head, an engine, walking wheels, a walking mechanism, a rotary blade, a handrail, and a control part. The cutter head is installed on the walking wheels, the engine is installed on the cutter head, the output shaft of the engine is equipped with a rotary blade. The rotary blade uses the high-speed rotation of the engine to greatly improve the speed, saving the working time of weeding workers and reducing a large amount of human resources; A weeding device for agricultural machinery described in the patent application with the publication number CN115943763A includes a frame, a control box, and a horizontal fine-tuning mechanism arranged on the lower side of the frame; a binocular camera is provided on the top of the control box; the horizontal fine-tuning mechanism includes two transmission shafts, and a number of connecting seats are fixedly arranged on the transmission shafts at equal intervals. The bottom end of each connecting seat is connected with a lifting driving mechanism; the lower end of the lifting driving mechanism is fixedly connected with one end of a driving seat, and a shock absorption mechanism is connected between the other end of the driving seat and the frame; a servo motor and a weeding tool connected by a transmission universal joint are arranged at the bottom end of the driving seat; the control box is electrically connected to the binocular camera, the reciprocating driving motor, the lifting driving mechanism, and the servo motor respectively and transmits control signals; At present, when a lawn mower is weeding a lawn, there is a situation where the applicability of the lawn mower is not wide enough, and it cannot adapt to a variety of different weeding working environments. Once the staff pushes the lawn mower and encounters bumps and undulations on the road surface, the rotary blade at the bottom of the lawn mower is fixed in position, so it is easy to collide with protruding stones and soil, resulting in damage to the rotary blade and accidental lifting of the soil on the road surface. In severe cases, it may even cause the rotary blade to break and affect the personal safety of the staff. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a weeding device for agricultural machinery, achieving the purpose of solving the above problems.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A weeding device for agricultural machinery includes a weeder, a motor is fixedly connected to the top of the weeder, a push handle is fixedly connected to the top of the weeder, rollers are installed on both sides of the weeder through connecting shafts, and a weeding adaptation mechanism is arranged at the bottom of the weeder; The weeding adaptation mechanism includes: A telescopic rotating shaft, one end of the telescopic rotating shaft is fixedly connected to the output end of the motor, the outer wall of the telescopic rotating shaft is rotatably connected to the bottom of the weeding device through a first bearing, a connecting block is fixedly connected to the outer wall of the telescopic rotating shaft, a rotating blade is fixedly connected to the bottom of the connecting block, and the motor is used to control the telescopic rotating shaft to drive the connecting block and the rotating blade to rotate; A spring, one end of the spring is fixedly connected to the top of the connecting block, the telescopic rotating shaft is divided into three sections, the top end of the spring is fixedly connected to the bottom of the topmost section of the telescopic rotating shaft, and the spring is used to reset the connecting block.

[0005] Preferably, a second bearing is fixedly connected to the bottom of the telescopic rotating shaft, a first hinge block is fixedly connected to the bottom of the second bearing, and a hinge blocking rod is hinged to the first hinge block.

[0006] Preferably, one end of the hinge blocking rod is hinged to a second hinge block, and a slider is fixedly connected to the top of the second hinge block.

[0007] Preferably, the inner wall of the second hinge block is hinged to the hinge blocking rod through a rotating shaft, a separating plate is fixedly connected to the outer wall of the rotating shaft, and the separating plate is in an arc-shaped plate structure.

[0008] Preferably, a guiding strip is fixedly connected to one side of the separating plate, the cross-section of the guiding strip is an isosceles triangle, a groove is formed in the inner wall of the separating plate, and an arc-shaped piece is fixedly connected to the bottom of the hinge blocking rod.

[0009] Preferably, an auxiliary mechanism is arranged on the outer wall of the hinge blocking rod, the auxiliary mechanism includes a fixing plate, the fixing plate is fixedly connected to both sides of the hinge blocking rod, and the fixing plate is in a rectangular plate structure.

[0010] Preferably, a sliding strip is fixedly connected to the bottom of the weeding device, and the top of the slider is slidably connected to the bottom of the weeding device through the sliding strip.

[0011] Preferably, a distance sensor is fixedly connected to one side of the slider, an information processor is fixedly connected to the top of the weeding device, a telescopic cover is fixedly connected to one side of the slider, one end of the telescopic cover is fixedly connected to the outer wall of the connecting shaft, and the distance sensor is located inside the telescopic cover.

[0012] Preferably, a display screen is arranged on the surface of the information processor, and the distance sensor is electrically connected to the information processor.

[0013] Preferably, the information processor is square in shape, the cross-section of the sliding strip is T-shaped, and the sliding strip serves to prevent the slider from falling off when sliding left and right on it.

[0014] The present invention provides an agricultural machinery weeding device. It has the following beneficial effects: 1. By setting up a weeding adaptation mechanism, the present invention can, while using a rotary blade to weed, automatically lift the rotary blade along with the potholes and uneven raised stones on the road surface. This can effectively prevent the tip of the rotary blade from hitting stones and soil when cutting and crushing weeds, which may cause the rotary blade to crack and fly, injuring personnel, and also prevent the rotary blade from damaging the muddy ground in forestry work, resulting in a state similar to "alopecia areata" on the lawn. This not only protects the staff but also protects the muddy ground in forestry work, increasing the adaptability of the weeder to various uneven road surfaces; 2. By setting up a weeding adaptation mechanism, the rotary blade will be lifted by the ground and stones pushing the articulated lever, so that the trimming of the lawn by the rotary blade can better adapt to the terrain. Therefore, when the height of the lawn is the same as the undulation of the bottom muddy ground, the lawn can better fit the original terrain features, creating a natural and harmonious beauty in forestry. More importantly, the undulating lawn is conducive to the natural drainage of rainwater. The rainwater will flow quickly along the height difference of the terrain, avoiding waterlogging on the lawn. For example, after a heavy rain, there may be local waterlogging on a flat lawn, while on a lawn trimmed according to the terrain undulation, the water can quickly flow to the low-lying areas and drain out, reducing the diseases and root rot problems caused by waterlogging on the lawn and enhancing its applicability to various lawn trimming working environments; 3. By setting up a weeding adaptation mechanism, under the elastic force of the spring, the telescopic rotating shaft will continuously move up and down while being driven to rotate, and at the same time drive the connecting block and the rotary blade to also move up and down during rotary weeding. By using the up and down vibration, the problem of entanglement between the rotary blade and weeds in the long-term simple horizontal rotation state can be reduced. The up and down movement of the rotary blade can reduce the probability of the rotary blade being entangled during weeding and ensure the stability of weeding; 4. By setting up a weeding adaptation mechanism, the weeds that are crowded together or even partly knotted into groups can be quickly scattered. They are divided into clusters through several evenly arranged grooves and enter the cutting range of the rotary blade evenly. This not only reduces the burden on the rotary blade during weeding and reduces entanglement, but also increases the weeding efficiency, avoiding the situation where the thick weeds crowded together cannot be completely cut off when being rotated and cut by the rotary blade, and then being bent down by the impact force of the rotary blade rotation. After the rotary blade passes by, the bent-down grass will stand up again without the upper obstruction, avoiding the problem of incomplete weeding and uneven lawn appearance; 5. The present invention avoids raised road surfaces and large stones by setting a weeding adaptation mechanism. This separation plate can not only separate and comb the grass piles through the grooves, but also automatically lift the connecting block and the rotary blade when encountering higher stones and raised road surfaces, without the need for the articulated rod to contact the stones. This avoids the problem that the position of the large stone is not directly opposite to the articulated rod, and the rotary blade hits the sides during the forward movement of the articulated rod. 6. The present invention sets an auxiliary mechanism. When continuously encountering stones of different sizes and road surfaces with different degrees of unevenness, the information processor automatically processes the information and converts it into specific values, which are then displayed on the information processor. The staff pushing the handle can observe the values on the information processor in real time to judge the road conditions under the weeding device at this time, facilitating the staff's understanding and timely corresponding adjustment work, improving the working stability of the weeding work, and reducing the occurrence of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic bottom view structure diagram of the present invention; Figure 3 is a schematic structural diagram of the weeding adaptation mechanism of the present invention Figure 1 ; Figure 4 is of the present invention Figure 3 enlarged view of part A; Figure 5 is a schematic structural diagram of the weeding adaptation mechanism of the present invention Figure 2 ; Figure 6 is a schematic movement diagram of the separation plate structure of the present invention Figure 1 ; Figure 7 is a schematic movement diagram of the articulated rod structure of the present invention Figure 1 ; Figure 8 is a schematic movement diagram of the separation plate structure of the present invention Figure 2 ; Figure 9 is a schematic movement diagram of the articulated rod structure of the present invention Figure 2 ; Figure 10 is of the present invention Figure 5 enlarged view of part B.

[0016] In the figure: 1. Push handle; 2. Weeder; 3. Weeding adaptation mechanism; 301. Telescopic rotating shaft; 302. First bearing; 305. Connecting block; 306. Rotary blade; 307. Spring; 308. Second bearing; 309. Slide block; 310. First hinge block; 311. Hinge stop bar; 312. Second hinge block; 313. Separation plate; 314. Rotating shaft; 315. Groove; 316. Flow guide strip; 317. Arc-shaped piece; 4. Auxiliary mechanism; 401. Fixed plate; 402. Slide bar; 403. Distance sensor; 404. Information processor; 405. Telescopic cover; 5. Motor; 6. Roller; 7. Connecting shaft. Detailed implementation mode

[0017] Embodiment 1: Please refer to Figures 1 - 4 , the present invention provides a technical solution: an agricultural machinery weeding device, including a weeder 2, a motor 5 is fixedly connected to the top of the weeder 2, a push handle 1 is fixedly connected to the top of the weeder 2, rollers 6 are installed on both sides of the weeder 2 through a connecting shaft 7, and a weeding adaptation mechanism 3 is arranged at the bottom of the weeder 2; The weeding adaptation mechanism 3 includes: A telescopic rotating shaft 301, one end of the telescopic rotating shaft 301 is fixedly connected to the output end of the motor 5, the outer wall of the telescopic rotating shaft 301 is rotationally connected to the bottom of the weeder 2 through a first bearing 302, a connecting block 305 is fixedly connected to the outer wall of the telescopic rotating shaft 301, a rotary blade 306 is fixedly connected to the bottom of the connecting block 305, and the motor 5 is used to control the telescopic rotating shaft 301 to drive the connecting block 305 and the rotary blade 306 to rotate; A spring 307, one end of the spring 307 is fixedly connected to the top of the connecting block 305, the telescopic rotating shaft 301 has three sections, and the top end of the spring 307 is fixedly connected to the bottom of the uppermost section of the telescopic rotating shaft 301, and the spring 307 is used to reset the connecting block 305; During use, forestry workers push the push handle 1 by hand, so that the weeder 2 moves on the lawn that needs to be leveled and weeded through the rollers 6, and the motor 5 is synchronously started to control the telescopic rotating shaft 301, the connecting block 305 and the rotary blade 306 to rotate. When the rotary blade 306 rotates rapidly, the weeds at the bottom of the weeder 2 are broken up for weeding; Embodiment 2: Please refer to Figures 1 - 9 , on the basis of Embodiment 1, the present invention provides a technical solution: on the one hand, when the rotary blade encounters a raised stone or soil block during the weeding process, the tip of the rotary blade is extremely likely to collide violently with these hard objects, which will not only cause the rotary blade to crack and fly, posing a serious safety hazard to the operator, but also damage the surface layer of the muddy land, causing damage areas similar to "alopecia areata" on the lawn, affecting the overall beauty and subsequent growth of the lawn.

[0018] On the other hand, when traditional weeding equipment is weeding, the rotary blade is in a simple horizontal rotation state for a long time. During the contact with weeds, the situation of weeds winding around the rotary blade is likely to occur. Especially when the weeds are relatively dense and some are even knotted into clusters, the winding problem is more serious. This not only increases the rotational resistance of the rotary blade, resulting in a significant reduction in weeding efficiency, but also makes the weeding work unstable, and there may be a phenomenon of incomplete weeding. The lawn after pruning is uneven, seriously affecting the natural and harmonious beauty of the lawn.

[0019] In addition, during the weeding process, the distribution state of weeds will also affect the weeding effect. If the weeds are crowded together, especially when some weeds are knotted into clusters, it is difficult for the rotary blade to completely cut them during rotary cutting. Some uncut weeds will be bent down by the rotational impact force of the rotary blade. And when the weeding equipment has passed, these bent-down weeds will stand up again, resulting in the weeding work not achieving the ideal effect and requiring multiple reworks, increasing the labor intensity and time cost.

[0020] At the same time, after rainy weather, local water accumulation is likely to occur on the flat lawn. The water accumulation will cause lawn diseases and root rot problems, affecting the healthy growth of the lawn. And traditional weeding equipment cannot trim the lawn according to the terrain undulation, which is not conducive to the natural drainage of rainwater. Therefore, the bottom of the telescopic rotating shaft 301 is fixedly connected with a second bearing 308, and the bottom of the second bearing 308 is fixedly connected with a first hinge block 310. The first hinge block 310 is hinged with a hinged stop bar 311.

[0021] One end of the hinged stop bar 311 is hinged with a second hinge block 312, and the top of the second hinge block 312 is fixedly connected with a slider 309.

[0022] The inner wall of the second hinge block 312 is hinged with the hinged stop bar 311 through a rotating shaft 314, and a separating plate 313 is fixedly connected to the outer wall of the rotating shaft 314. The separating plate 313 is of an arc-shaped plate structure.

[0023] One side of the separating plate 313 is fixedly connected with a guiding strip 316. The cross-section of the guiding strip 316 is an isosceles triangle. A groove 315 is opened on the inner wall of the separating plate 313, and an arc-shaped piece 317 is fixedly connected to the bottom of the hinged stop bar 311; When weeding the grassland, the articulated stop lever 311 hinged below the second bearing 308 at the bottom of the telescopic rotating shaft 301 will contact the dirt road surface at the bottom. The other end of the articulated stop lever 311 is hinged on the second hinge block 312 below the slider 309. Since the height of the slider 309 is fixed, when the dirt road surface passed is uneven, the lower articulated stop lever 311 will be blocked by the raised soil blocks and stones and pushed upward to the first hinge block 310 and the second bearing 308, causing the second bearing 308 to push the telescopic rotating shaft 301 to rise. The telescopic rotating shaft 301 shortens section by section and drives the connecting block 305 and the rotary blade 306 on the outer wall of the telescopic rotating shaft 301 to rise synchronously. Since the bottom end of the telescopic rotating shaft 301 is rotatably connected to the first hinge block 310 through the second bearing 308, the articulated stop lever 311 can push the telescopic rotating shaft 301 to perform rotational and telescopic movements. Thus, while using the rotary blade 306 to weed, it can automatically lift the rotary blade 306 along with the potholes and uneven raised stones on the road surface, effectively preventing the tip of the rotary blade 306 from hitting the stones and dirt when cutting and crushing weeds, which may cause the rotary blade 306 to crack and fly and injure people, and also preventing the dirt ground from being damaged by the rotary blade 306, resulting in a state similar to "alopecia areata" on the lawn. This protects both the workers and the dirt ground in forestry work and increases the adaptability of the weeder 2 to a wider range of uneven road surfaces; The rotary blade 306 will be lifted by the ground and stones pushing the articulated stop lever 311, so that the trimming of the lawn by the rotary blade 306 can better adapt to the terrain. Therefore, when the height of the lawn is the same as the undulation of the bottom dirt ground, the lawn can better fit the original terrain features, creating a natural and harmonious beauty in forestry. More importantly, the undulating lawn is conducive to the natural drainage of rainwater. The rainwater will flow quickly along the height difference of the terrain, avoiding waterlogging on the lawn. For example, after a heavy rain, there may be local waterlogging on a flat lawn, while for a lawn trimmed according to the terrain undulation, the water can quickly flow to the low-lying areas and drain out, reducing the diseases and root rot problems caused by waterlogging on the lawn and enhancing its applicability to various lawn trimming work environments; When the articulated stop lever 311 always adheres to the dirt ground and moves forward, the unevenness of the road surface will be transmitted to the articulated stop lever 311 to the second bearing 308 and the telescopic rotating shaft 301. Thus, under the elastic force of the spring 307, while the telescopic rotating shaft 301 is being driven to rotate, it continuously makes up-and-down telescopic vibrations, and at the same time drives the connecting block 305 and the rotary blade 306 to also make up-and-down jitters during rotary weeding. By using the up-and-down jitters, it can reduce the entanglement problem between the rotary blade 306 and the weeds when the rotary blade 306 is in a long-term simple horizontal rotation state. The up-and-down movement of the rotary blade 306 can reduce the probability of the rotary blade 306 being entangled during weeding and ensure the stability of weeding; When the weeder 2 is pushed forward, the weeds will first come into contact with the separation plate 313 and be separated through the grooves 315 in the inner wall of the separation plate 313, quickly spreading the weeds that are crowded together or even partially knotted into clusters. The weeds are divided into clusters through several evenly arranged grooves 315 and enter the cutting range of the rotary blade 306 evenly. This not only reduces the burden on the rotary blade 306 during weeding and reduces entanglement, but also increases the weeding efficiency. It avoids the problem that the thick weeds crowded together cannot be completely cut off when being rotated and cut by the rotary blade 306, and then the weeds are bent down by the impact force of the rotation of the rotary blade 306. After the rotary blade 306 passes by, the bent-down weeds will stand up again after losing the upper obstruction, avoiding the problem of incomplete weeding and uneven lawn levels, which is not aesthetically pleasing; Since the cross-section of the guide strip 316 on one side of the separation plate 313 is triangular, when contacting the weeds, it will use the guiding of the guide strip 316 to more evenly guide the weeds into the grooves 315, preventing the problem that the weed piles are crowded and difficult to enter the grooves 315; When the articulated stop lever 311 is lifted by a stone, one end is articulated on the first articulated block 310 to push the second bearing 308 to rise, and the other end is articulated through the second articulated block 312 and pushes the slider 309 to slide to the right on the sliding strip 402, giving the articulated stop lever 311 space for articulated rotation and leveling; Embodiment Three: Please refer to Figures 1 - 10 , on the basis of Embodiment One and Embodiment Two, the present invention provides a technical solution: When the weeding device encounters a large stone during forward movement, the position of the large stone is not directly opposite to the avoidance component similar to the articulated stop lever in the traditional device, but on both sides of its forward path. The rotary blade may still hit these stones during normal weeding, further increasing the risk of damage to the rotary blade.

[0024] On the other hand, during the weeding process, it is often difficult for the staff to understand the road conditions under the weeding device in real time. Due to the inability to accurately grasp the distribution of road obstacles and the terrain undulation, the staff may collide with obstacles due to misjudgment when operating the device, or may not be able to adjust the weeding strategy in time to adapt to different road conditions. This not only affects the stability of the weeding work but also increases the probability of accidents. Therefore, an auxiliary mechanism 4 is provided on the outer wall of the articulated stop lever 311. The auxiliary mechanism 4 includes a fixing plate 401, and the fixing plate 401 is fixedly connected to both sides of the articulated stop lever 311. The fixing plate 401 is a rectangular plate structure.

[0025] A sliding strip 402 is fixedly connected to the bottom of the weeder 2, and the top of the slider 309 is slidably connected to the bottom of the weeder 2 through the sliding strip 402.

[0026] On one side of the slider 309, a distance sensor 403 is fixedly connected. On the top of the weeder 2, an information processor 404 is fixedly connected. The distance sensor 403 is electrically connected to the information processor 404. On one side of the slider 309, a telescopic cover 405 is fixedly connected. One end of the telescopic cover 405 is fixedly connected to the outer wall of the connecting shaft 7. The distance sensor 403 is located inside the telescopic cover 405.

[0027] A display screen is arranged on the surface of the information processor 404. The distance sensor 403 is electrically connected to the information processor 404.

[0028] The information processor 404 is square in shape. The cross-section of the sliding bar 402 is T-shaped. The sliding bar 402 functions to prevent the slider 309 from falling off when sliding left and right on it. When the separation plate 313 encounters a small stone in front, it will naturally be pushed up by the stone, driving the rotating shaft 314 to rotate synchronously, allowing the small stones that do not affect weeding to pass through. When encountering a larger stone or a raised road surface, at this time, the separation plate 313 is pushed upward and rotated until the separation plate 313 contacts the fixed plate 401, and continuously pushes the fixed plate 401 to the hinged stop bar 311. The stone and the ground will continue to push up the left side of the hinged stop bar 311 along the inclined separation plate 313 and the hinged stop bar 311, finally lifting the telescopic rotating shaft 301, the connecting block 305, and the rotary blade 306 as a whole, avoiding the raised road surface and larger stones. The separation plate 313 can not only separate and comb the haystack through the groove 315, but also automatically lift the connecting block 305 and the rotary blade 306 when encountering higher stones and raised road surfaces, without the hinged stop bar 311 contacting the stone, avoiding the problem that the position of the larger stone is not directly opposite the hinged stop bar 311 and the rotary blade 306 hitting the hinged stop bar 311 on both sides during the forward movement of the hinged stop bar 311. When continuously encountering stones of different sizes and road surfaces with different degrees of unevenness, the larger the convex surface and the stone, the different heights the connecting block 305 and the rotary blade 306 will be lifted. The higher the connecting block 305 and the rotary blade 306 are lifted, the farther the slider 309 will move to the right on the sliding bar 402 through the hinged push of the hinged stop bar 311. Thus, the distance sensor 403 on one side of the slider 309 will send this information to the information processor 404 by identifying the distance from the connecting shaft 7. The information processor 404 automatically processes and converts the information into specific values and displays them on the information processor 404. The staff pushing the push handle 1 can observe the values on the information processor 404 in real time to judge the road conditions under the weeder 2 at this time, facilitating the staff's understanding and timely corresponding adjustment work, improving the work stability of the weeding work, and reducing the occurrence of accidents. The outside of the distance sensor 403 is covered by the telescopic cover 405 with respect to the connecting shaft 7, which can avoid the interference of distance recognition caused by external weeds and sundries to the distance sensor 403. As the slider 309 moves left and right, the telescopic cover 405 can freely expand and contract without hindering the slider 309. The telescopic cover 405 encloses the distance sensor, and its interior is in a hollow state, which will not affect the distance sensing of the distance sensor 403 from the connecting shaft 7. The arc-shaped piece 317 is used to replace the articulated lever 311 to contact the stone when the articulated lever 311 contacts the stone. With the smaller contact area of the arc-shaped piece 317, the friction with the stone is reduced, and the smoothness of the sliding is improved.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An agricultural mechanical weeding device, comprising a weeder (2), a motor (5) is fixedly connected to the top of the weeder (2), a push handle (1) is fixedly connected to the top of the weeder (2), and rollers (6) are installed on both sides of the weeder (2) through a connecting shaft (7), and it is characterized in that: A weeding adaptation mechanism (3) is provided at the bottom of the weeding device (2); The weeding adaptation mechanism (3) includes: A telescopic rotating shaft (301), one end of the telescopic rotating shaft (301) is fixedly connected to the output end of the motor (5), the outer wall of the telescopic rotating shaft (301) is rotationally connected to the bottom of the weeding device (2) through a first bearing (302), a connecting block (305) is fixedly connected to the outer wall of the telescopic rotating shaft (301), a rotary blade (306) is fixedly connected to the bottom of the connecting block (305), and the motor (5) is used to control the telescopic rotating shaft (301) to drive the connecting block (305) and the rotary blade (306) to rotate; A spring (307), one end of the spring (307) is fixedly connected to the top of the connecting block (305), the telescopic rotating shaft (301) is in three sections, the top end of the spring (307) is fixedly connected to the bottom of the uppermost section of the telescopic rotating shaft (301), and the spring (307) is used to reset the connecting block (305).

2. The weeding device for agricultural machinery according to claim 1, wherein: A second bearing (308) is fixedly connected to the bottom of the telescopic rotating shaft (301), a first hinge block (310) is fixedly connected to the bottom of the second bearing (308), and a hinge stop bar (311) is hinged to the first hinge block (310).

3. The weeding device for agricultural machinery according to claim 2, characterized in that: One end of the hinge stop bar (311) is hinged to a second hinge block (312), and a slider (309) is fixedly connected to the top of the second hinge block (312).

4. An agricultural machinery weeding device according to claim 3, characterized in that: The inner wall of the second hinge block (312) is hinged to the hinge stop bar (311) through a rotating shaft (314), a separating plate (313) is fixedly connected to the outer wall of the rotating shaft (314), and the separating plate (313) is in an arc-shaped plate structure.

5. The weeding device for agricultural machinery according to claim 4, characterized in that: A guiding strip (316) is fixedly connected to one side of the separating plate (313), the cross-section of the guiding strip (316) is an isosceles triangle, a groove (315) is formed in the inner wall of the separating plate (313), and an arc-shaped piece (317) is fixedly connected to the bottom of the hinge stop bar (311).

6. The weed removal device for agricultural machinery according to claim 5, characterized in that: An auxiliary mechanism (4) is arranged on the outer wall of the hinge stop bar (311), the auxiliary mechanism (4) includes a fixing plate (401), the fixing plate (401) is fixedly connected to both sides of the hinge stop bar (311), and the fixing plate (401) is in a rectangular plate structure.

7. The weeding device for agricultural machinery according to claim 6, characterized in that: A sliding strip (402) is fixedly connected to the bottom of the weeding device (2), and the top of the slider (309) is slidably connected to the bottom of the weeding device (2) through the sliding strip (402).

8. The weeding device for agricultural machinery according to claim 7, wherein: A distance sensor (403) is fixedly connected to one side of the slider (309), an information processor (404) is fixedly connected to the top of the weeding device (2), a telescopic cover (405) is fixedly connected to one side of the slider (309), one end of the telescopic cover (405) is fixedly connected to the outer wall of the connecting shaft (7), and the distance sensor (403) is located inside the telescopic cover (405).

9. An agricultural machinery weeding device according to claim 8, characterized in that: A display screen is arranged on the surface of the information processor (404), and the distance sensor (403) is electrically connected to the information processor (404).

10. An agricultural machinery weeding device according to claim 9, characterized in that: The information processor (404) is in a square shape, the cross-section of the slide bar (402) is in a T shape, and the slide bar (402) functions to enable the slider (309) to slide left and right thereon without falling off.

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