Obstacle-avoiding weeding machine

Abstract

The utility model provides an obstacle avoidance weeding machine which comprises a weeding machine body, a three-point suspension seat and an obstacle avoidance assembly, the weeding machine body comprises a machine frame, walking wheels, a driving assembly, a plurality of first cutter head assemblies and a plurality of second cutter head assemblies, and the first cutter head assemblies and the second cutter head assemblies are alternately arranged at the bottom of the machine frame at intervals in the transverse direction. The obstacle avoidance assembly comprises a swing arm and a telescopic assembly, the swing arm comprises a connecting end and a cantilever end, the connecting end is hinged to the rack, the cantilever end can horizontally swing around the connecting end, the bottom of the cantilever end is connected with a first cutter head assembly, the first end of the telescopic assembly is connected to the rack, and the second end of the telescopic assembly is connected with the middle of the swing arm. In this way, it can be guaranteed that weeding is conducted in place through the cutter head assembly of the obstacle avoiding assembly, when an obstacle is encountered, the swing arm can be pushed and pulled through the telescopic assembly to conduct swing adjustment, the adaptability to the weeding environment is greatly improved, it is guaranteed that the weeding effect is in place, adjustment is fast and convenient, and the weeding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to weeding machine technical field especially a kind of barrier weeding machine. BACKGROUND

[0002] Weeding machine is a kind of mechanical equipment for removing weeds and pruning vegetation;It is widely used in agriculture, horticulture, forestry and urban landscaping fields to maintain the neatness of land and the healthy growth of crops.

[0003] And traction weeding machine is mainly powered by tractor traction, so as to replace manual control weeding machine and reduce labor cost;But tractor in prior art will inevitably appear corner position weeding not in place when traction weeding, and the whole weeding machine is inconvenient to move, and it is inconvenient to adjust when encountering obstacles, so the process is time-consuming and laborious, and the weeding effect is not in place.

[0004] Therefore, it is necessary to provide a barrier weeding machine to solve or at least alleviate the above-mentioned defects. SUMMARY

[0005] The main purpose of the utility model is to provide a barrier weeding machine to solve the problem of corner position weeding not in place and inconvenient to adjust when encountering obstacles in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides a barrier weeding machine, which comprises a weeding machine body, a three-point suspension seat and an obstacle avoidance assembly.

[0007] The weeding machine body comprises a rack, walking wheels, a driving assembly and a plurality of first cutter disc assemblies and second cutter disc assemblies which are rotatably arranged, the walking wheels are connected to the front end and the rear end of the rack, the driving assembly is connected to the rack, the three-point suspension seat is connected to the rack and arranged at the driving assembly, the input shaft of the driving assembly and the three-point suspension seat are used for connecting with an external tractor, and the first cutter disc assemblies and the second cutter disc assemblies are alternately and spacedly arranged on the bottom of the rack in the transverse direction.

[0008] The obstacle avoidance assembly comprises a swing arm and an extension assembly, the swing arm comprises a connecting end and a cantilever end, the connecting end is hinged to the rack, the cantilever end is horizontally swingably arranged around the connecting end, the bottom of the cantilever end is connected with the first cutter disc assembly, the extension assembly is telescopically arranged along its length direction, the first end of the extension assembly is connected to the rack, and the second end of the extension assembly is connected to the middle part of the swing arm.

[0009] Preferably, the barrier-avoiding assembly further comprises a barrier-avoiding strip and an infrared detection device, one end of the barrier-avoiding strip is connected to the side of the swing arm away from the telescopic assembly, the other end of the barrier-avoiding strip is outwardly cantilevered and connected with the infrared detection device, and the barrier-avoiding strip corresponds to the above of the first cutter head assembly of the swing arm.

[0010] Preferably, the barrier-avoiding strip is in an arc shape.

[0011] Preferably, the first cutter head assembly and the second cutter head assembly each comprise a rotating shaft, a connecting cylinder and a plurality of vertically spaced blade groups, the rotating shaft vertically extends and is rotatably connected to the bottom of the frame, the connecting cylinder is connected to the bottom end of the rotating shaft, the blade group is connected to the connecting cylinder, and each blade group comprises a plurality of circumferentially spaced blades.

[0012] Preferably, the blade groups between the first cutter head assembly and the second cutter head assembly are vertically staggered.

[0013] Preferably, the bottommost blades in the first cutter head assembly and the second cutter head assembly are each arranged in an inclined manner.

[0014] Preferably, the bottommost blade in the second cutter head assembly is arranged in a bent manner.

[0015] Preferably, the telescopic assembly adopts a hydraulic oil cylinder.

[0016] Preferably, the side of the swing arm towards the telescopic assembly is convexly formed with an ear plate, the first end of the telescopic assembly is hingedly connected to the frame, and the second end of the telescopic assembly is hingedly connected with the ear plate of the swing arm.

[0017] Preferably, the inclination angle of the bottommost blades in the first cutter head assembly and the second cutter head assembly is 8°-10°.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] The present invention provides an obstacle-avoiding weeding machine, comprising a weeding machine body, a three-point suspension seat, and an obstacle-avoiding component. The weeding machine body includes a frame, wheels, a drive assembly, and multiple self-rotatable first and second cutter disc assemblies. The wheels are connected to the front and rear ends of the frame. The drive assembly is connected to the frame. The three-point suspension seat is connected to the frame and located at the drive assembly. The input shaft of the drive assembly and the three-point suspension seat are used to connect to an external tractor. The first and second cutter disc assemblies are alternately arranged at intervals along the lateral direction at the bottom of the frame. The obstacle-avoiding component includes a swing arm and a telescopic component. The swing arm includes a connecting end and a cantilever end. The connecting end is hinged to the frame. The cantilever end is horizontally swingable around the connecting end, and the bottom of the cantilever end is connected to the first cutter disc assembly. The telescopic component is telescopically extendable along its own length direction, and the first end of the telescopic component is connected to the frame, and the second end of the telescopic component is connected to the middle of the swing arm. In this way, the blade assembly of the obstacle avoidance component can ensure that weeding is carried out in the corners. When an obstacle is encountered, the swing arm can be pushed and pulled by the telescopic component to make swing adjustment, which greatly improves the adaptability to the weeding environment, ensures that the weeding effect is in place, and the adjustment is quick and convenient, thus improving the weeding efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure in one embodiment of the present utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the overall structure from another perspective in one embodiment of the present invention;

[0023] Figure 3 This is a plan view of the overall structure in one embodiment of the present utility model;

[0024] Figure 4 This is a plan view of the overall structure after adjusting the position of the obstacle avoidance component in one embodiment of the present invention.

[0025] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0026] Explanation of icon numbers:

[0027] 10. Weeder body; 110. Frame; 120. Wheels; 130. Drive assembly; 131. Input shaft; 140. First cutter head assembly; 141. Rotary shaft; 142. Connecting cylinder; 143. Blade; 150. Second cutter head assembly; 20. Three-point suspension seat; 30. Obstacle avoidance assembly; 310. Swing arm; 311. Ear plate; 320. Telescopic assembly; 330. Obstacle avoidance strip. Detailed Implementation

[0028] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0029] 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.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0032] Please see the appendix Figures 1-4This utility model provides an obstacle-avoidance weeding machine according to one embodiment, including a weeding machine body 10, a three-point suspension seat 20, and an obstacle-avoidance component 30. First, it should be noted that in this application, "lateral" refers to the horizontal direction perpendicular to the direction of travel (the length direction of the frame 110), "front end" refers to the direction of travel, and "rear end" refers to the rear of the travel path; please refer to the accompanying drawings for details. Unlike existing technologies where tractors often fail to effectively remove weeds from corners and edges, and the weeding machine is difficult to move and adjust when encountering obstacles, resulting in a time-consuming and labor-intensive process with inadequate weeding effect, this application typically provides an obstacle-avoidance weeding machine to address the aforementioned shortcomings of the prior art, as detailed below:

[0033] The weeding machine body 10 includes a frame 110, wheels 120, a drive assembly 130, and multiple self-rotatable first cutter disc assemblies 140 and second cutter disc assemblies 150. The wheels 120 are connected to the front and rear ends of the frame 110. The drive assembly 130 is connected to the frame 110. The three-point suspension seat 20 is connected to the frame 110 and is located at the drive assembly 130. The input shaft 131 of the drive assembly 130 and the three-point suspension seat 20 are both used for connection to an external tractor. The first cutter disc assembly 140 and the second cutter disc assembly... 150 are arranged alternately at intervals along the transverse direction at the bottom of the frame 110; the obstacle avoidance assembly 30 includes a swing arm 310 and a telescopic assembly 320. The swing arm 310 includes a connecting end and a cantilever end. The connecting end is hinged to the frame 110. The cantilever end is horizontally swingable around the connecting end, and the bottom of the cantilever end is connected to the first cutter head assembly 140. The telescopic assembly 320 is telescopically arranged along its own length direction. The first end of the telescopic assembly 320 is connected to the frame 110, and the second end of the telescopic assembly 320 is connected to the middle part of the swing arm 310.

[0034] Specifically, the obstacle-avoiding weed cutter in this application includes a weed cutter body 10, a three-point suspension seat 20, and an obstacle-avoiding component 30. The three-point suspension seat 20 is used to connect with an external tractor to use the tractor's traction as a power source. It is a common connecting component in traction machinery, and therefore it is installed on the frame 110 of the obstacle-avoiding weed cutter. In addition, the obstacle-avoiding weed cutter is also provided with a drive component 130. The drive component 130 is used to drive the rotation of each cutter head assembly, and its input shaft 131 is used to connect with the output shaft of the external tractor for further traction connection.

[0035] Furthermore, the traveling wheels 120 are connected to the front and rear ends of the frame 110. The traveling wheels 120 can be universal height-limiting wheels. In some preferred embodiments, the height-limiting wheels can be set to a vertically adjustable height structure to adjust the height of the entire weeder and control the weeding depth. The first cutter disc assembly 140 and the second cutter disc assembly 150 are both weeding cutter discs of the weeder. The first cutter disc assembly 140 and the second cutter disc assembly 150 are alternately arranged at the bottom of the frame 110 to ensure coverage of the weeding range. The corners can be weeded adaptively by the cutter disc of the obstacle avoidance assembly 30, which can be flexibly adjusted.

[0036] The obstacle avoidance assembly 30 includes a swing arm 310 and a telescopic assembly 320. The swing arm 310 is used for mounting the cutter head and is swingably configured. Specifically, its connecting end is hinged to one end of the frame 110, which can be achieved by a pin penetrating vertically. The cantilever end is equipped with the first cutter head assembly 140, so the cantilever end can swing horizontally around the connecting end. The telescopic assembly 320 is used to control the swing of the swing arm 310, and pushes and pulls by extending and retracting. Therefore, its first end is connected to the frame. On 110, the second end is connected to the middle of the swing arm 310. Preferably, the telescopic component 320 can be a hydraulic cylinder, which is a commonly used telescopic device. Preferably, in order to avoid rigid deformation caused by the fixed connection of the two ends during telescopic movement, both ends of the telescopic component 320 are set to be hinged. An ear plate 311 can be formed on the side of the swing arm 310 facing the telescopic component 320 to facilitate hinge, thereby adapting to the small displacement changes caused by telescopic movement, avoiding rigid damage, and extending the service life of the structure.

[0037] In a preferred embodiment of the present invention, the obstacle avoidance component 30 further includes an obstacle avoidance strip 330 and an infrared detection device. One end of the obstacle avoidance strip 330 is connected to the side of the swing arm 310 away from the telescopic component 320, and the other end of the obstacle avoidance strip 330 is cantilevered outward and connected to the infrared detection device. The obstacle avoidance strip 330 is correspondingly positioned above the first cutter head component 140 of the swing arm 310.

[0038] It should be noted that the obstacle avoidance strip 330 is used to make contact with an obstacle for initial protection. Therefore, the obstacle avoidance strip 330 needs to be positioned above the first cutter head assembly 140 of the swing arm 310. Here, "positioned protection" means that the protection range of the obstacle avoidance strip 330 needs to be larger than the outline size of the first cutter head assembly 140 of the swing arm 310, so that it can contact the obstacle before the first cutter head assembly 140 of the swing arm 310. Preferably, the obstacle avoidance strip 330 can be arc-shaped to adapt to the circular shape of the cutter head when rotating. In addition, by cooperating with the infrared detection device (not shown in the figure), it can further issue obstacle avoidance prompts, thereby improving the obstacle avoidance warning effect and allowing the swing arm 310 to be adjusted in time for obstacle avoidance.

[0039] In a preferred embodiment of the present invention, both the first cutter head assembly 140 and the second cutter head assembly 150 include a rotating shaft 141, a connecting cylinder 142, and a plurality of blade groups arranged vertically at intervals. The rotating shaft 141 extends vertically and is rotatably connected to the bottom of the frame 110. The connecting cylinder 142 is connected to the bottom end of the rotating shaft 141. The blade groups are connected to the connecting cylinder 142, and each blade group includes a plurality of blades 143 arranged circumferentially at intervals along the connecting cylinder 142.

[0040] It is worth noting that the rotating shaft 141 is used to drive the blades 143 to rotate. It extends vertically and its top end extends into the frame 110 and is connected to a gear. The frame 110 is then connected to the drive end of the drive assembly 130 through the meshing of multiple gears. Thus, the drive assembly 130 drives each blade disc assembly to rotate. Its specific structure is a well-known structure in weeders, so it will not be described in detail here. The connecting cylinder 142 is used for mounting the blade group. It is connected to the bottom end of the rotating shaft 141. Multiple blade groups are arranged vertically at intervals to ensure weeding effect. Each blade group includes multiple blades 143 arranged circumferentially along the connecting cylinder 142 to ensure weeding efficiency and improve weed cutting force.

[0041] In a preferred embodiment of the present invention, the blade groups between the first cutter head assembly 140 and the second cutter head assembly 150 are vertically staggered.

[0042] It is worth noting that since the first cutter head assembly 140 and the second cutter head assembly 150 are arranged alternately and at intervals, they are adjacent to each other. The vertical staggered arrangement means that the blade groups of the first cutter head assembly 140 and the second cutter head assembly 150 are not located on the same horizontal plane, so that the blade groups of the two adjacent cutter head assemblies can collide with each other and cause damage.

[0043] Furthermore, the bottommost blades 143 in both the first cutter head assembly 140 and the second cutter head assembly 150 are arranged at an angle.

[0044] It should be noted that the bottommost blade 143 is mainly used to cut the roots of grass as the main part of weeding. The inclined setting can increase the contact area with the grass, making the cutting more efficient, better cutting weeds, and reducing recutting. In a preferred embodiment, the inclination angle can be set to 8° to 10°, which can be selected by those skilled in the art according to specific needs.

[0045] Furthermore, the bottommost blade 143 of the second cutter head assembly 150 is arranged in a bent shape.

[0046] It should be understood that the bottommost blade 143 is usually kept at the same height to ensure uniform weeding depth. However, if they are set flush, the bottommost blades 143 of the two adjacent blade assemblies will collide. Therefore, the bottommost blade 143 of the second blade assembly 150 is bent to avoid collision with the bottommost blade 143 of the adjacent first blade assembly 140, thus ensuring the normal operation of the device.

[0047] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An obstacle-avoidance weeding machine, characterized in that, Includes the lawnmower body, three-point suspension mount, and obstacle avoidance components; among which, The weeding machine body includes a frame, wheels, a drive assembly, and multiple self-rotating first and second cutter disc assemblies. The wheels are connected to the front and rear ends of the frame, the drive assembly is connected to the frame, and the three-point suspension is connected to the frame and located at the drive assembly. The input shaft of the drive assembly and the three-point suspension are used to connect to an external tractor. The first and second cutter disc assemblies are arranged alternately at intervals along the lateral direction at the bottom of the frame. The obstacle avoidance assembly includes a swing arm and a telescopic assembly. The swing arm includes a connecting end and a cantilever end. The connecting end is hinged to the frame. The cantilever end is horizontally swingable around the connecting end, and the bottom of the cantilever end is connected to the first cutter head assembly. The telescopic assembly is telescopically extendable along its own length direction, and the first end of the telescopic assembly is connected to the frame, and the second end of the telescopic assembly is connected to the middle of the swing arm.

2. The obstacle-avoiding weeding machine according to claim 1, characterized in that, The obstacle avoidance assembly also includes an obstacle avoidance strip and an infrared detection device. One end of the obstacle avoidance strip is connected to the side of the swing arm away from the telescopic assembly, and the other end of the obstacle avoidance strip is cantilevered outward and connected to the infrared detection device. The obstacle avoidance strip is correspondingly positioned above the first cutter head assembly of the swing arm.

3. The obstacle-avoiding weeding machine according to claim 2, characterized in that, The obstacle avoidance strip is arc-shaped.

4. The obstacle-avoiding weeding machine according to claim 1, characterized in that, Both the first cutter head assembly and the second cutter head assembly include a rotating shaft, a connecting cylinder, and multiple blade groups arranged at intervals along the vertical direction. The rotating shaft extends vertically and is rotatably connected to the bottom of the frame. The connecting cylinder is connected to the bottom end of the rotating shaft. The blade groups are connected to the connecting cylinder, and each blade group includes multiple blades arranged at intervals along the circumference of the connecting cylinder.

5. The obstacle-avoiding weeding machine according to claim 4, characterized in that, The blade groups between the first cutter head assembly and the second cutter head assembly are vertically staggered.

6. The obstacle-avoiding weeding machine according to claim 4, characterized in that, The blades at the bottom of both the first and second cutter head assemblies are arranged at an angle.

7. The obstacle-avoiding weeding machine according to claim 6, characterized in that, The blade at the bottom of the second cutter head assembly is bent.

8. The obstacle-avoiding weeding machine according to claim 1, characterized in that, The telescopic component uses a hydraulic cylinder.

9. The obstacle-avoiding weeding machine according to claim 1, characterized in that, The swing arm has a lug plate protruding from one side toward the telescopic assembly. The first end of the telescopic assembly is hinged to the frame, and the second end of the telescopic assembly is hinged to the lug plate of the swing arm.

10. The obstacle-avoiding weeding machine according to claim 6, characterized in that, The inclination angle of the bottommost blade in the first cutter head assembly and the second cutter head assembly is 8° to 10°.

Images