Obstacle-avoiding weeding machine

Abstract

The utility model discloses an obstacle avoidance weeding machine which comprises an installation plate, a three-point suspension device is installed on the installation plate, and the installation plate is further provided with a gearbox and connected with a plurality of universal wheels. A swing arm is hinged to the outer side of the mounting plate, weeding cutter heads are mounted at the outer end of the swing arm and the bottom of the mounting plate, a plurality of weeding cutters are fixed to the peripheries of the weeding cutter heads, and the weeding cutter heads are in transmission connection with the gearbox; a collision buffer structure is mounted above the weeding cutter head mounted at the outer end of the swing arm; a protruding arm is formed at the inner end of the swing arm and connected with an obstacle avoidance spring fixed to the mounting plate. The fruit tree weeding machine can weed the peripheries of fruit trees without damaging trunks, so that the fruit trees cannot be damaged while weeding is clean, labor cost is saved, and normal growth of the fruit trees is guaranteed.

Description

Technical Field

[0001] The utility model mainly relates to the mechanical field, and specifically relates to an obstacle avoidance weeding machine. Background Art

[0002] In order to ensure the normal growth of fruit trees, etc., it is necessary to regularly weed the orchard. When the existing weeding machines are weeding, they are likely to touch the tree trunks, resulting in damage to the fruit trees. There are also people using obstacle avoidance herbicides, such as a composite obstacle avoidance weeding machine disclosed in CN 218007062 U. However, its obstacle avoidance principle is based on controlling the range of the weeding disc, and the plant spacing is only a general range. Moreover, it is difficult for the herbicide to be at the midline of the plant spacing when moving. Therefore, it is likely to cause incomplete weeding or damage to the plants. There are also people using a camera device for obstacle avoidance, such as an orchard profiling obstacle avoidance and grass crushing machine disclosed in CN 214508011 U. However, its camera is very likely to be blocked by grass leaves during operation, resulting in misjudgment. Moreover, when weeding, the weeding disc rotates at a high speed and contacts the grass, which is likely to cause strong vibrations and is also likely to damage the camera. Therefore, it is necessary to develop a weeding device for weeding around fruit trees without damaging the fruit trees. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides an obstacle avoidance weeding machine. The purpose of the utility model is achieved through the following technical solutions:

[0004] An obstacle avoidance weeding machine includes a mounting plate. A three-point suspension device is mounted on the mounting plate. The mounting plate is also provided with a gearbox and connected with a number of universal wheels. The outer side of the mounting plate is also hingedly connected with a swing arm. Weeding cutter discs are mounted at the outer end of the swing arm and the bottom of the mounting plate. A number of weeding cutters are fixed on the outer periphery of the weeding cutter discs. The weeding cutter discs are in transmission connection with the gearbox. A collision buffer structure is mounted above the weeding cutter disc mounted at the outer end of the swing arm. A convex arm is formed at the inner end of the swing arm, and the convex arm is connected with an obstacle avoidance spring fixed on the mounting plate.

[0005] Further improvement, the mounting plate is connected with the universal wheels through a universal wheel connecting rod.

[0006] Further improvement, cutter disc belt pulleys are sequentially mounted on the mounting plate from left to right and at both ends of the swing arm. The cutter disc belt pulleys are connected with the weeding cutter discs. The gearbox is connected with a main belt pulley, and the main belt pulley is in transmission connection with the cutter disc belt pulleys through a transmission belt.

[0007] Further improvement, the cutter disc belt pulleys at both ends of the swing arm are in transmission connection through a swing arm transmission belt, and the cutter disc belt pulley at the inner end of the swing arm is in transmission connection with the main belt pulley through a transmission belt.

[0008] For further improvement, the collision buffer structure includes an obstacle avoidance disc. A number of rollers are installed along the circumference of the obstacle avoidance disc, and an elastic ring is sleeved outside the rollers. The diameter of the elastic ring is larger than the diameter of the rotation trajectory of the outer end of the weeding cutter.

[0009] For further improvement, the elastic ring is a rubber ring.

[0010] For further improvement, an N-shaped part is fixed on the mounting plate, and a number of connecting holes for fixing the obstacle avoidance springs are formed on the N-shaped part.

[0011] For further improvement, the mounting plate installs the gearbox through an N-shaped frame.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The present utility model can carry out weeding on the periphery of fruit trees without damaging the tree trunks, thus ensuring clean weeding without damaging the fruit trees, saving labor, and ensuring the normal growth of fruit trees. Description of the Drawings

[0014] The present utility model is further described with the accompanying drawings, but the content in the drawings does not constitute any limitation to the present utility model.

[0015] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0016] Figure 2 is a front structure schematic diagram of the present utility model. Specific Embodiments

[0017] In order to make the purpose, technical solutions and advantages of the utility model more clear and understandable, the following further detailed description of the present utility model is made in conjunction with the accompanying drawings and examples.

[0018] Embodiment 1

[0019] The following further detailed description of the specific implementation manner, structure and characteristics of an obstacle avoidance weeding machine proposed according to the present utility model is made in conjunction with the accompanying drawings and preferred embodiments. The accompanying drawings involved only illustrate some embodiments of the present utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other relevant information can also be obtained according to the accompanying drawings in combination with specific cases and their own technical levels.

[0020] As Figure 1-2 shown, an obstacle avoidance weeding machine includes a universal wheel 1, a universal wheel connecting rod 2, a mounting plate 3, a three-point suspension device 4, a cutter head pulley 5, a gearbox 6, a transmission belt 7, an obstacle avoidance spring 8, a swing arm 9, a convex arm 91, a swing arm transmission belt 92, an elastic ring 10, an obstacle avoidance disc 11, a weeding cutter head 12, a weeding cutter 13, an avoidance roller 14, an N-shaped part 15, a connecting hole 16 and an N-shaped frame 17.

[0021] On the general mounting plate 3, a three-point suspension device 4 connected to a mobile power device such as a tractor is installed. The mounting plate 3 is also installed with a gearbox 6 and is connected with a number of universal wheels 1 through a universal wheel connecting rod 2; on the outside of the mounting plate 3, a swing arm 9 is hingedly connected. Weeding cutter discs 12 are installed at the outer end of the swing arm 9 and the bottom of the mounting plate 3. A number of weeding cutter blades 13 are fixed on the outer circumference of the weeding cutter discs 12. The weeding cutter discs 12 are in transmission connection with the gearbox 6; above the weeding cutter disc 12 installed at the outer end of the swing arm 9, a collision buffer structure is installed. The collision buffer structure includes an obstacle avoidance disc 11. A number of rollers 14 are installed along the circumference of the obstacle avoidance disc 11. An elastic ring 10 is sleeved outside the roller 14. The elastic ring 10 is a rubber ring; a convex arm 91 is formed at the inner end of the swing arm 9, and the convex arm 91 is connected with an obstacle avoidance spring 8 fixed on the mounting plate 3.

[0022] On the mounting plate 3, cutter disc belt pulleys 5 are installed in sequence from left to right and at both ends of the swing arm 9. The cutter disc belt pulleys 5 are connected to the weeding cutter discs 12. The gearbox 6 is connected with a main belt pulley 18, and the main belt pulley 18 is in transmission connection with the cutter disc belt pulleys 5 through a transmission belt 7. Among them, the cutter disc belt pulleys 5 at both ends of the swing arm 9 are in transmission connection through a swing arm transmission belt 92, and the cutter disc belt pulley 5 at the inner end of the swing arm 9 is in transmission connection with the main belt pulley 18 through a transmission belt 7.

[0023] An N-shaped member 15 is fixed on the mounting plate 3, and the N-shaped member 15 is formed with a number of connection holes 16 for fixing the obstacle avoidance spring 8. The mounting plate 3 installs the gearbox 6 through an N-shaped frame 17.

[0024] When in use, it is connected to the tractor through the three-point suspension device 4, and the gearbox is connected to the rear connecting shaft of the tractor to achieve power transmission, driving the weeding cutter disc 12 to rotate for weeding. Among them, the weeding cutter disc 12 on the swing arm 9 is located on the outermost side, that is, near the fruit tree for weeding. When it approaches the fruit tree, the elastic ring 10 first contacts the trunk of the fruit tree, and then it is squeezed and swings towards the middle of the mounting plate 3. After passing through the trunk of the fruit tree, it returns to its original position under the tension of the obstacle avoidance spring 8 and continues to weed, thus realizing automatic obstacle avoidance and not causing damage to the trunk of the fruit tree.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An obstacle-avoiding weeding machine, characterized in that, It includes a mounting plate (3) on which a three-point hitch device (4) is installed. The mounting plate (3) is also equipped with a gearbox (6) and connected with a number of universal wheels (1); a swing arm (9) is hingedly connected to the outside of the mounting plate (3). Weeding cutter discs (12) are installed at the outer end of the swing arm (9) and the bottom of the mounting plate (3). A number of weeding cutters (13) are fixed to the outer circumference of the weeding cutter disc (12), and the weeding cutter disc (12) is in transmission connection with the gearbox (6); a collision buffer structure is installed above the weeding cutter disc (12) installed at the outer end of the swing arm (9); a convex arm (91) is formed at the inner end of the swing arm (9), and the convex arm (91) is connected with an obstacle avoidance spring (8) fixed on the mounting plate (3).

2. The obstacle-avoiding weeding machine according to claim 1, wherein, The mounting plate (3) is connected with the universal wheels (1) through universal wheel connecting rods (2).

3. The obstacle-avoiding weeding machine according to claim 1, characterized in that, Disc pulleys (5) are sequentially installed on the mounting plate (3) from left to right and at both ends of the swing arm (9). The disc pulleys (5) are connected with the weeding cutter discs (12). The gearbox (6) is connected with a main pulley (18), and the main pulley (18) is in transmission connection with the disc pulleys (5) through a transmission belt (7).

4. The obstacle avoidance weeding machine according to claim 3, characterized in that, The disc pulleys (5) at both ends of the swing arm (9) are in transmission connection through a swing arm transmission belt (92), and the disc pulley (5) at the inner end of the swing arm (9) is in transmission connection with the main pulley (18) through a transmission belt (7).

5. The obstacle avoidance weeding machine according to claim 1, characterized in that, The collision buffer structure includes an obstacle avoidance disc (11). A number of rollers (14) are installed along the circumference of the obstacle avoidance disc (11). An elastic ring (10) is sleeved outside the rollers (14), and the diameter of the elastic ring (10) is larger than the diameter of the outer end rotation trajectory of the weeding cutter (13).

6. The obstacle-avoiding weeding machine according to claim 5, wherein The elastic ring (10) is a rubber ring.

7. The obstacle avoidance weeding machine according to claim 1, wherein An n-shaped part (15) is fixed on the mounting plate (3), and the n-shaped part (15) is formed with a number of connection holes (16) for fixing the obstacle avoidance spring (8).

8. The obstacle avoidance weeding machine according to claim 1, characterized in that, The mounting plate (3) installs the gearbox (6) through an n-shaped frame (17).

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