A self-propelled weeding machine

Abstract

The application discloses a self-propelled weeding machine, which comprises a cutting mechanism, a conveying mechanism, a scattering mechanism and a trimming mechanism. The cutting mechanism is installed at the front end of the weeding machine body and used for cutting weeds. The conveying mechanism is used for diverting and conveying the weeds cut by the cutting mechanism. The scattering mechanism is used for clamping the weeds conveyed by the conveying mechanism. The trimming mechanism is arranged between the conveying mechanism and the scattering mechanism and used for trimming the weeds. The scattering mechanism comprises a rotating disc, and a plurality of clamping assemblies are installed on the rotating disc. The clamping assemblies are used for clamping weeds in cooperation with the rotating disc and gradually releasing the weeds in the process of following the rotating disc. The weeding machine has the advantages that the weeds cut by the cutting mechanism are trimmed into small pieces by the trimming mechanism arranged between the conveying mechanism and the scattering mechanism, the small pieces of weeds are clamped by the clamping assemblies in cooperation with the rotating disc and gradually released in the process of rotating the rotating disc, and the problem that the weeds cannot be evenly scattered on the land is solved.

Description

Technical Field

[0001] This invention relates to the field of weeding machines, and more specifically to a self-propelled weeding machine. Background Technology

[0002] A lawnmower, also known as a lawn mower, lawn trimmer, or lawn trimmer, is a mechanical tool used for trimming lawns, vegetation, etc. Existing lawnmowers include a frame, drive unit, rotating disc, pins, and cutter head. The drive unit is mounted on the frame and is fixedly connected to it. The rotating disc is rotatably connected to the frame, and the drive unit drives the rotating disc to rotate around its axis. At least two pins are provided. The upper surface of the rotating disc has multiple stepped holes, the inner bottom of which penetrates the thickness of the rotating disc. Grooves are formed around the circumference of the pins, and these grooves engage with the stepped holes. Multiple bushings are provided on the upper surface of the cutter head, and the pins are inserted into these bushings one by one, with the bushings fixing the pins in place. This design prevents collisions that could cause the shaft on the cutter head to bend and jam.

[0003] Existing weed cutters have the following problems: the cut weeds fall down in the direction of the machine's movement and cannot be evenly distributed on the ground. Weeds need to be dispersed so that the nutrients produced after the weeds decompose can be distributed on the ground.

[0004] Based on the above situation, there is an urgent need for a self-propelled weed cutter to solve the problem of weeds not being evenly distributed on the land. Summary of the Invention

[0005] The purpose of this invention is to address the problem that existing weed cutters cause weeds to fall down along the direction of travel as the machine moves forward, resulting in uneven distribution on the land. This invention provides a method to distribute the weeds so that the nutrients produced after their decomposition can be dispersed on the land, thus solving the problem of uneven weed distribution.

[0006] The technical solution of the present invention is as follows:

[0007] A self-propelled weeding machine includes:

[0008] The cutting mechanism is installed at the front end of the weeder body and is used to cut weeds;

[0009] A conveying mechanism is used to deflect and convey the weeds cut by the cutting mechanism;

[0010] A scattering mechanism for clamping the weeds conveyed by the conveying mechanism;

[0011] A cutting mechanism is disposed between the conveying mechanism and the scattering mechanism and is used to cut weeds;

[0012] The scattering mechanism includes a turntable with several clamping components installed on it. The clamping components are used to cooperate with the turntable to clamp weeds and gradually release the weeds as the turntable rotates.

[0013] Existing weed cutters cause the cut weeds to fall down along the direction of travel as the machine moves forward, failing to distribute them evenly on the ground. Therefore, a weed-dispersion process is needed to distribute the nutrients generated from weed decomposition across the soil. In this solution, a cutting mechanism located between the conveying mechanism and the dispersion mechanism cuts the weeds into small segments. These segments are then held in place by a clamping assembly that works with a turntable, gradually releasing the weeds as the turntable rotates. This solves the problem of uneven weed distribution on the ground.

[0014] Furthermore, this solution is not limited to the specific structure of the clamping component. One feasible solution is that the clamping component includes a lifting block mounted on the turntable and a gripper mounted on the lifting block. When this solution is adopted, during the rotation of the turntable, the lifting block gradually rises to offset the side wall of the turntable. During the process of the lifting block gradually offsetting the side wall of the turntable, the weeds can fall naturally under their own weight.

[0015] Furthermore, in order to achieve the lifting and lowering of the lifting block, one feasible solution is as follows: the upper end of the lifting block contacts and abuts against the first flange, and a first roller that cooperates with the first flange is installed on the lifting block. Through the cooperation between the first flange and the first roller, the lifting block can automatically rise and fall as the turntable rotates. When this solution is adopted, the lifting and lowering of the lifting block is achieved through a mechanical structure, which ensures reliability and avoids the use of a complex control system.

[0016] Furthermore, the lifting block is equipped with an elastic element that cooperates with the gripper. The elastic element is used to push the gripper toward the center of the turntable. When this solution is adopted, the elastic element applies force to the gripper so that the gripper cooperates with the side wall of the turntable to achieve the gripping of weeds.

[0017] Furthermore, before the gripper performs the next gripping action, the gripper needs to be sufficiently far away from the turntable to ensure that all weeds are completely released. To achieve this, one feasible solution is that the gripper contacts and abuts against the cam, and a second roller that cooperates with the cam is mounted on the gripper. Through the cooperation between the cam and the second roller, the gripper can automatically extend and retract as the turntable rotates. When this solution is adopted, the extension and retraction of the gripper is achieved through a mechanical structure, ensuring reliability and avoiding the need for a complex control system.

[0018] Furthermore, in order to change the direction of weeds from vertical to horizontal, one feasible solution is as follows: the conveying mechanism includes a roller, and several turning clamps are installed on the roller. The turning clamps are used to clamp the cut weeds and turn the vertical weeds to the horizontal direction. When this solution is adopted, the turning clamps hold the cut weeds and the clamped weeds rotate synchronously with the roller until the weeds are horizontal, thus realizing the change of the direction of weeds from vertical to horizontal.

[0019] Furthermore, this solution is not limited to the specific structure of the steering clamp. One feasible solution is that the steering clamp includes a movable claw, which is used to clamp weeds during the steering process and release the weeds after the steering is completed. In this solution, the clamping and release of weeds is achieved by controlling the working state of the movable claw.

[0020] Furthermore, this solution is not limited to the control method of the movable claw. One feasible solution is that the movable claw cooperates with a rack and pinion. During the turning process, the rack and pinion extend and drive the movable claw to open outward to clamp weeds. After the turning is completed, the rack and pinion retract and drive the movable claw to close inward to release the weeds. When this solution is adopted, the working state of the movable claw is controlled by the extension and retraction of the rack and pinion. The structure is simple and easy to maintain.

[0021] Furthermore, this solution is not limited to the driving method of the rack and pinion. One feasible solution is that the rack and pinion cooperate with the telescopic rod, one end of the telescopic rod contacts and abuts against the second flange, and a third roller that cooperates with the second flange is installed on the telescopic rod. Through the cooperation of the third roller with the second flange, the telescopic rod can automatically extend and retract during the rotation of the roller. When this solution is adopted, the extension and retraction of the telescopic rod is achieved through a mechanical structure, which ensures reliability and avoids the use of a complex control system.

[0022] Furthermore, the conveying mechanism includes a vertical conveyor belt and a horizontal conveyor belt for conveying weeds to the scattering mechanism. In this configuration, the vertical and horizontal conveyor belts assist in conveying the weeds to the trimming mechanism.

[0023] Compared with existing technologies, the advantages of this invention are:

[0024] 1. After the cut weeds are cut into small pieces by the cutting mechanism set between the conveying mechanism and the scattering mechanism, the small pieces of weeds are clamped by the clamping component in cooperation with the turntable and gradually released as the turntable rotates, so as to achieve the uniform scattering of small pieces of weeds and solve the problem that weeds cannot be evenly scattered on the ground.

[0025] Second, since the upper end of the lifting block contacts and abuts against the first flange, and the lifting block is equipped with a first roller that cooperates with the first flange, the lifting block can automatically rise and fall as the turntable rotates through the cooperation of the first flange and the first roller. The lifting of the lifting block is realized through mechanical structure, which ensures reliability and avoids the use of complex control systems.

[0026] Third, since the gripper contacts and abuts against the cam and a second roller that cooperates with the cam is installed on the gripper, the gripper can automatically extend and retract as the turntable rotates through the cooperation between the cam and the second roller. The extension and retraction of the gripper is achieved through a mechanical structure, which ensures reliability and avoids the need for a complex control system. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present invention;

[0029] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0030] Figure 4 This is a first-view structural diagram of the scattering mechanism according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the second-view structure of the scattering mechanism according to an embodiment of the present invention;

[0032] Figure 6 for Figure 5 Enlarged view of point B in the image;

[0033] Figure 7 This is a first cross-sectional view of the conveying mechanism according to an embodiment of the present invention;

[0034] Figure 8 This is a second cross-sectional view of the conveying mechanism according to an embodiment of the present invention.

[0035] Figure label:

[0036] 1. Weeder body; 2. Cutting mechanism; 3. Conveying mechanism; 4. Distributing mechanism; 5. Trimming mechanism; 6. Drive wheel; 7. Driven wheel;

[0037] 11. Frame; 12. Baffle;

[0038] 21. Fixed blade; 22. Movable blade;

[0039] 31. Roller; 32. Diverting clamp; 33. Telescopic rod; 34. Second flange; 35. Third roller; 36. Vertical conveyor belt; 37. Horizontal conveyor belt; 38. Inclined plate; 39. Diverting structure;

[0040] 321. Movable claw; 322. Straight toothed rack;

[0041] 361. Control box;

[0042] 41. Turntable; 42. Clamping assembly; 43. First flange; 44. Cam;

[0043] 421. Lifting block; 422. Gripper; 423. First roller; 424. Second roller;

[0044] 61. Drive motor. Detailed Implementation

[0045] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0046] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0047] Example:

[0048] Please refer to Figure 1 , Figure 2 and Figure 8 A self-propelled weed cutter, comprising:

[0049] The cutting mechanism 2 is installed at the front end of the weeder body 1 and is used to cut weeds;

[0050] Conveying mechanism 3 is used to turn and convey the weeds cut by cutting mechanism 2;

[0051] The scattering mechanism 4 is used to clamp the weeds conveyed by the conveying mechanism 3;

[0052] The cutting mechanism 5 is located between the conveying mechanism 3 and the scattering mechanism 4 and is used to cut weeds;

[0053] Reference Figure 5 The scattering mechanism 4 includes a turntable 41, on which a plurality of clamping components 42 are installed. The clamping components 42 are used to cooperate with the turntable 41 to clamp weeds and gradually release the weeds as the turntable 41 rotates.

[0054] Existing weed cutters cause the cut weeds to fall down along the direction of travel as the machine moves forward, failing to spread evenly on the land. Therefore, weeds need to be dispersed to allow nutrients from their decomposition to be distributed across the soil. In this solution, a cutting mechanism 5, located between the conveying mechanism 3 and the dispersing mechanism 4, cuts the weeds into smaller segments. These segments are then held in place by a clamping assembly 42 in conjunction with a turntable 41, and gradually released as the turntable 41 rotates. This solves the problem of unevenly spreading weeds on the land.

[0055] Reference Figure 2 This solution does not limit the specific structure of the cutting mechanism 2. One feasible solution is that the cutting mechanism 2 includes a fixed blade 21 mounted on the frame 11. The fixed blade 21 and the movable blade 22 cooperate to cut weeds. When this solution is adopted, the structure is simple and easy to maintain.

[0056] Preferably, in this embodiment, the weeding machine body 1 is equipped with a drive wheel 6 and a driven wheel 7. The two drive wheels 6 are respectively connected to a drive motor 61. The two drive motors 61 control the two drive wheels 6 respectively, thereby realizing the forward, backward and turning of the weeding machine body 1.

[0057] Preferably, in this embodiment, a baffle 12 is provided between the scattering mechanism 4 and the driven wheel 7. The baffle 12 is used to prevent weeds from contacting the shaft of the driven wheel 7.

[0058] Reference Figure 5 and Figure 6 This solution does not limit the specific structure of the clamping component 42. One feasible solution is that the clamping component 42 includes a lifting block 421 mounted on the turntable 41 and a gripper 422 mounted on the lifting block 421. When this solution is adopted, during the rotation of the turntable 41, the lifting block 421 gradually rises to offset the side wall of the turntable 41. During the process of the lifting block 421 gradually offsetting the side wall of the turntable 41, the weeds can fall naturally under their own weight.

[0059] To achieve the lifting and lowering of the lifting block 421, one feasible solution is as follows: the upper end of the lifting block 421 contacts and abuts against the first flange 43, and a first roller 423 that cooperates with the first flange 43 is installed on the lifting block 421. Through the cooperation between the first flange 43 and the first roller 423, the lifting block 421 can automatically lift and lower as the turntable 41 rotates. When this solution is adopted, the lifting and lowering of the lifting block 421 is achieved through a mechanical structure, which ensures reliability and avoids the use of a complex control system.

[0060] The lifting block 421 is equipped with an elastic element that cooperates with the gripper 422. The elastic element is used to push the gripper 422 toward the center of the turntable. When this scheme is adopted, the elastic element applies a force to the gripper 422 so that the gripper 422 cooperates with the side wall of the turntable 41 to achieve the gripping of weeds.

[0061] Reference Figure 7 Before gripper 422 performs the next gripping action, gripper 422 needs to be far enough away from turntable 41 to ensure that all weeds are completely released. To achieve this, one feasible solution is that gripper 422 contacts and abuts against cam 44, and a second roller 424 that cooperates with cam 44 is installed on gripper 422. Through the cooperation of cam 44 and second roller 424, gripper 422 can automatically extend and retract as turntable 41 rotates. When this solution is adopted, the extension and retraction of gripper 422 is achieved through mechanical structure, which ensures reliability and avoids the use of complex control systems.

[0062] Reference Figure 2 and Figure 3 To achieve the transformation of weeds from a vertical to a horizontal orientation, one feasible solution is as follows: The conveying mechanism 3 includes a roller 31, on which several turning clamps 32 are installed. The turning clamps 32 are used to clamp the cut weeds and turn the vertical weeds to a horizontal orientation. When this solution is adopted, the turning clamps 32 clamp the cut weeds and the clamped weeds rotate synchronously with the roller 31 until the weeds are horizontal, thus realizing the transformation of weeds from a vertical to a horizontal orientation.

[0063] This solution does not limit the specific structure of the steering clamp 32. One feasible solution is that the steering clamp 32 includes a movable claw 321, which is used to clamp weeds during the turning process and release the weeds after the turning is completed. In this solution, the clamping and release of weeds is achieved by controlling the working state of the movable claw 321.

[0064] This solution does not limit the control method of the movable claw 321. One feasible solution is that the movable claw 321 cooperates with the rack 322. During the turning process, the rack 322 extends and drives the movable claw 321 to open outward to clamp the weeds. After the turning is completed, the rack 322 retracts and drives the movable claw 321 to close inward to release the weeds. When this solution is adopted, the working state of the movable claw 321 is controlled by the extension and retraction of the rack 322. The structure is simple and easy to maintain.

[0065] This solution is not limited to the driving method of the rack 322. One feasible solution is that the rack 322 cooperates with the telescopic rod 33, one end of the telescopic rod 33 contacts and abuts against the second flange 34, and a third roller 35 that cooperates with the second flange 34 is installed on the telescopic rod 33. Through the cooperation of the third roller 35 and the second flange 34, the telescopic rod 33 can automatically extend and retract during the rotation of the roller 31. When this solution is adopted, the extension and retraction of the telescopic rod 33 is achieved through a mechanical structure, which ensures reliability and avoids the use of a complex control system.

[0066] Reference Figure 4 and Figure 8 The conveying mechanism 3 includes a vertical conveyor belt 36 and a horizontal conveyor belt 37 for conveying weeds to the scattering mechanism 4. In this configuration, the vertical conveyor belt 36 and the horizontal conveyor belt 37 assist in conveying the weeds to the trimming mechanism 5.

[0067] Optionally, the vertical conveyor belt 36 is connected to a control box 361, and the cutting mechanism 5 is installed inside the control box 361. The control box 361 serves as the power source for the vertical conveyor belt 36 and the cutting mechanism 5. The cutting mechanism 5 includes cutting scissors driven by a telescopic rod.

[0068] Reference Figure 4 and Figure 5 Preferably, in this embodiment, the conveying mechanism 3 includes an inclined plate 38, and the inclined plate 38 and the vertical conveyor belt 36 form a shrinking channel, which is used to gather the weeds so that the cutting mechanism 2 can cut them.

[0069] Reference Figure 7 and Figure 8 Preferably, in this embodiment, the conveying mechanism 3 includes a diversion structure 39, which diverts the weeds to two scattering mechanisms 4.

[0070] The working principle of this embodiment:

[0071] Two drive motors 61 drive two drive wheels 6 respectively to control the weeder body 1 to move along a preset route. During the movement of the weeder body 1, the movable blade 22 reciprocates and cooperates with the fixed blade 21 to cut the weeds. At the same time, the roller 31 rotates. Under the action of the second flange 34, the telescopic rod 33 drives the rack 322 to drive the movable claw 321 on the steering clamp 32 to open outward to clamp the weeds. The weeds follow the roller 31 to rotate synchronously and turn from the vertical direction to the horizontal direction. After turning, the weeds enter the shrinking channel under the action of the vertical conveyor belt 36 and the horizontal conveyor belt 37. After the turning is completed, the weeds enter the shrinking channel. The rack 322 drives the movable claw 321 on the steering clamp 32 to close inward. Then, the weeds are moved out of the shrinkage channel by a preset distance and cut into small segments by the cutting mechanism 5. The clamping component 42 cooperates with the turntable 41 to clamp the cut weeds. As the clamping component 42 rotates with the turntable 41, under the action of the first flange 43, the lifting block 421 drives the claw 422 to rise synchronously to offset the side wall of the turntable 41. The weeds fall naturally and scatter under their own weight. After the weeds clamped by the clamping component 42 have scattered, under the action of the cam 44, the claw 422 moves away from the turntable 41 to facilitate the next clamping.

[0072] To address the problem of weeds not being evenly distributed on the land, this solution employs a cutting mechanism 5 located between the conveying mechanism 3 and the dispersing mechanism 4. After the cut weeds are chopped into small segments, the clamping assembly 42, in conjunction with the turntable 41, holds the small segments of weeds and gradually releases them as the turntable 41 rotates. This achieves even distribution of the small segments of weeds and solves the problem of weeds not being evenly distributed on the land.

[0073] In order to achieve the lifting of the lifting block 421, in this solution, since the upper end of the lifting block 421 contacts and abuts against the first flange 43, and the lifting block 421 is equipped with a first roller 423 that cooperates with the first flange 43, the lifting block 421 can automatically lift and lower as the turntable 41 rotates through the cooperation of the first flange 43 and the first roller 423. The lifting of the lifting block 421 is achieved through a mechanical structure, which ensures reliability and avoids the need for a complex control system.

[0074] In order to achieve the extension and retraction of the gripper 422, in this solution, since the gripper 422 contacts and abuts against the cam 44 and a second roller 424 that cooperates with the cam 44 is installed on the gripper 422, the gripper 422 can automatically extend and retract as the turntable 41 rotates. The extension and retraction of the gripper 422 is achieved through a mechanical structure, which ensures reliability and avoids the need for a complex control system.

[0075] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-propelled weeding machine characterized by comprising: The utility model provides a cutting mechanism (2) is installed in the front end of weeding machine body (1) and is used for cutting weeds, a conveying mechanism (3) is used for turning and conveying weeds after cutting of cutting mechanism (2), a scattering mechanism (4) is used for clamping weeds conveyed by conveying mechanism (3), a cutting mechanism (5) is arranged between conveying mechanism (3) and scattering mechanism (4) and is used for cutting weeds, scattering mechanism (4) includes carousel (41), carousel (41) is installed with a plurality of clamping assemblies (42), clamping assembly (42) is used for clamping weeds with carousel (41) cooperation and gradually releases weeds in the process of following carousel (41) rotation, clamping assembly (42) includes lift block (421) installed on carousel (41) and clamping jaw (422) installed on lift block (421), in the process of carousel (41) rotation, lift block (421) gradually rises to stagger the side wall of carousel (41), lift block (421) is installed with the elastic element matched with clamping jaw (422), and the elastic element is used to push clamping jaw (422) to the center of carousel, clamping jaw (422) contacts and abuts against cam (44), and second roller (424) is installed on clamping jaw (422) and matched with cam (44). The upper end of lift block (421) contacts and abuts against first flange (43), and first roller (423) is installed on lift block (421) and matched with first flange (43). Conveying mechanism (3) includes roller (31), roller (31) is installed with a plurality of turning clamps (32), and turning clamp (32) is used for clamping weeds after cutting and turns vertical weeds into horizontal direction. Turning clamp (32) includes movable jaw (321), movable jaw (321) is used for clamping weeds in the process of turning and releasing weeds after turning is completed. Movable jaw (321) is matched with straight rack (322), in the process of turning, straight rack (322) is stretched out and drives movable jaw (321) to open outward to clamp weeds, after turning is completed, straight rack (322) is retracted and drives movable jaw (321) to close inward to release weeds. Straight rack (322) is matched with telescopic rod (33), one end of telescopic rod (33) contacts and abuts against second flange (34), and third roller (35) is installed on telescopic rod (33) and matched with second flange (34).

2. The self-propelled weeding machine according to claim 1, characterized by Conveying mechanism (3) includes vertical conveyor belt (36) and horizontal conveyor belt (37) for conveying weeds to scattering mechanism (4).

3. The self-propelled weeding machine according to claim 1, wherein ​ 4. The self-propelled weeding machine according to claim 3, wherein ​ 5. The self-propelled weeding machine according to claim 4, wherein ​ 6. The self-propelled weeding machine according to claim 5, wherein ​ 7. The self-propelled weeding machine according to claim 1, wherein ​

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