Weeding mechanism for weeding under Chinese herbal medicine leaves

Abstract

The utility model relates to a weeding mechanism for weeding under Chinese herbal medicine leaves. The weeding mechanism comprises a weeding assembly, a rotating assembly and a protection assembly. The weeding assembly comprises a weeding motor, a weeding tool bit and a weeding motor mounting frame. The rotating assembly comprises a mechanism connecting plate and a rotating motor; and an output shaft of the rotating motor is connected with the weeding motor mounting frame. The protection assembly comprises a protection cover, an outer tooth slewing bearing, a driving gear and a protection cover driving motor; an output shaft of the protective cover driving motor is connected with the driving gear; the driving gear is connected with the outer tooth slewing bearing in a meshed mode, and the protective cover is installed on the outer side wall of the outer tooth slewing bearing. By arranging the rotating assembly, the angle of the weeding tool bit is adjusted, and weeds located below Chinese herbal medicine leaves can be removed; by arranging the protection assembly, the Chinese herbal medicine crops can be prevented from being damaged when the weeding tool bit works. The device can effectively remove weeds below leaves of Chinese herbal medicine crops, and cannot cause accidental injury to the Chinese herbal medicine crops.

Description

Technical Field

[0001] The utility model relates to the technical field of weeding robots, and particularly relates to a weeding mechanism for weeding under Chinese herbal medicine leaves. Background Art

[0002] With the booming development of the Chinese medicine industry, the demand for Chinese herbal medicines has increased significantly, leading to a continuous expansion of the planting area of Chinese herbal medicines. However, in the process of large-scale planting of Chinese herbal medicines, the weeding problem has become increasingly serious.

[0003] At present, the weeding work in Chinese herbal medicine planting mainly relies on manual weeding and the help of some weeding robots. However, the existing weeding mechanisms of weeding robots are not ideal when removing weeds hidden under Chinese herbal medicine leaves. The branches and leaves of Chinese herbal medicine plants are lush, and the leaves are stacked layer by layer. For the weeds hidden under the leaves, it is difficult for the devices such as the robotic arms and cutting tools of the existing weeding robots to accurately locate, and often only some weeds around the plants and above the leaves are cleared, and it is difficult to completely clean the weeds under the leaves.

[0004] Therefore, the market urgently needs an efficient weeding solution specifically for the weeds under Chinese herbal medicine leaves. Content of the Utility Model

[0005] In order to solve the deficiencies in the prior art, the purpose of the utility model is to provide a weeding mechanism for weeding under Chinese herbal medicine leaves, which can effectively remove the weeds under the leaves of Chinese herbal medicine crops without causing accidental injury to the Chinese herbal medicine crops.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A weeding mechanism for weeding under Chinese herbal medicine leaves, the weeding mechanism comprising: a weeding component and a rotating component for driving the weeding component to rotate.

[0008] The weeding component includes a weeding motor, a weeding cutter head connected to the output shaft of the weeding motor, and a weeding motor mounting bracket for fixing the weeding motor.

[0009] The rotating component includes a mechanism connecting plate and a rotating motor mounted on the mechanism connecting plate; the output shaft of the rotating motor is connected to the weeding motor mounting bracket.

[0010] The weeding mechanism further includes a protection component, the protection component including a protective cover, an external gear slewing bearing, a driving gear and a protective cover driving motor; the output shaft of the protective cover driving motor is connected to the driving gear; the driving gear is meshed and connected with the external gear slewing bearing, and the protective cover is installed on the outer side wall of the external gear slewing bearing.

[0011] Further, the weeding motor is fixed on the weeding motor mounting bracket by bolts, and the weeding cutter head is connected to the weeding motor through a coupling.

[0012] Further, the rotating motor is connected to the weeding assembly through a coupling and bearings, and the rotating motor is connected to the weeding motor mounting bracket.

[0013] Further, the external gear slewing bearing is connected to the weeding motor mounting bracket through the external gear slewing bearing mounting bracket. The external gear slewing bearing mounting bracket is mounted on the weeding motor mounting bracket, and the external gear slewing bearing is rotationally matched with the external gear slewing bearing mounting bracket.

[0014] Further, the protective cover adopts an arc surface.

[0015] Further, the protective cover is fixed on the external gear slewing bearing by bolts.

[0016] Further, the protective cover driving motor is mounted on the weeding motor mounting bracket and is threadedly connected to the weeding motor mounting bracket; the driving gear is fixed on the output shaft of the protective cover driving motor through a key and a setscrew.

[0017] Further, the weeding motor adopts an RS997 motor.

[0018] Further, the rotating motor adopts a stepper motor.

[0019] Further, the protective cover driving motor adopts a stepper motor.

[0020] Compared with the prior art, the advantages of the present utility model are as follows:

[0021] By setting the rotating assembly, the present utility model realizes the adjustment of the angle of the weeding cutter head in the weeding assembly, so that the weeds under the dense leaves of the Chinese herbal medicine crops can be easily removed; by setting the protection assembly, the protective cover driving motor drives the driving gear to rotate, so that the driving gear drives the external gear slewing bearing meshed with it to rotate, and then drives the protective cover connected to the external gear slewing bearing to rotate, so as to realize that the protective cover is always located above the weeding cutter head, avoiding damage to the Chinese herbal medicine crops when the weeding cutter head works. The present utility model can effectively remove the weeds under the leaves of the Chinese herbal medicine crops and will not cause accidental injury to the Chinese herbal medicine crops. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the weeding mechanism for weeding under Chinese herbal medicine leaves in the present utility model;

[0023] Figure 2 is a schematic structural diagram of the protection assembly in the present utility model;

[0024] Figure 3 It is the angle adjustment diagram of the weeding mechanism for weeding under the leaves of Chinese herbal medicines in the present utility model;

[0025] Figure 4 It is the schematic diagram of the working state of the present utility model.

[0026] Among them:

[0027] 1. Rotary motor, 2. Mechanism connecting plate, 3. Weeding motor mounting bracket, 4. Protective cover, 5. External gear slewing bearing mounting bracket, 6. External gear slewing bearing, 7. Weeding cutter head, 8. Driving gear, 9. Protective cover driving motor, 10. Weeding motor. Specific embodiments

[0028] The following further describes the present utility model with reference to the accompanying drawings:

[0029] As Figure 1 shown, a weeding mechanism for weeding under the leaves of Chinese herbal medicines includes a weeding component, a rotating component for driving the rotation of the weeding component, and a protective component. The weeding component, the rotating component, and the protective component complement each other and operate in coordination to jointly exert the weeding efficiency.

[0030] As Figure 1 shown, the weeding component includes a weeding motor 10, a weeding cutter head 7 connected to the output shaft of the weeding motor 10, and a weeding motor mounting bracket 3 for fixing the weeding motor 10. The weeding motor 10 is fixed on the weeding motor mounting bracket 3 by bolts, and the weeding cutter head 7 is connected to the weeding motor 10 through a coupling. The weeding motor 10 adopts an RS997 motor. The RS997 motor is selected as the driving mechanism of the weeding motor for its stable performance. This motor has good torque and high-speed characteristics, can output sufficient force at the moment of startup to overcome the static inertia of the cutter head, and drive the subsequent operation smoothly, meeting the power requirements of weeding operations under complex field conditions. The weeding motor mounting bracket 3, as a key component for supporting the weeding motor 10, can ensure the stable operation of the motor without shaking.

[0031] As Figure 1As shown in the figure, the rotating assembly includes a mechanism connection plate 2 and a rotating motor 1 mounted on the mechanism connection plate 2; the output shaft of the rotating motor 1 is connected to the weeding motor mounting bracket 3. The rotating motor 1 is connected to the weeding assembly through a coupling and bearings. Specifically, the rotating motor 1 is connected to the weeding motor mounting bracket 3. When the rotating motor 1 rotates, it drives the weeding motor mounting bracket 3 in the weeding assembly to rotate, and further rotates the weeding motor 10 and the weeding cutter head 7 connected to the weeding motor 10, so that the weeding cutter head 7 can be rotated above the weeds for weeding. The rotating motor 1 is connected to the weeding motor mounting bracket 3 by means of a coupling and bearings. The coupling transmits the motor torque and buffers the operating shock, while the bearings ensure smooth rotation and low friction. Together, the two allow the power of the rotating motor to be smoothly transmitted, driving the weeding motor mounting bracket 3 and its attached components to rotate flexibly. During operation, the rotating motor 1 works, and the weeding assembly can be accurately positioned within a wide angle range of (-90° to +90°).

[0032] Preferably, the rotating motor 1 uses a stepper motor. Relying on the pulse signal control principle, the rotating motor can accurately control the angular displacement of the output shaft. For each received pulse, the motor shaft rotates by a predetermined step angle. When driving the weeding motor mounting bracket and the connected weeding cutter head, it can be accurately positioned within a wide range of -90° to +90°. For example, when dealing with Chinese herbal medicine fields with different plant types and complex leaf layer distributions, corresponding angle commands can be input through programming, and the error can be controlled within a very small range, ensuring that the weeding cutter head directly hits the weeds under the leaves, avoiding ineffective operations and crop damage. The weeding cutter head 7 can flexibly shuttle through the leaf gaps of Chinese herbal medicine plants, adapting to the field environment with uneven heights and different leaf densities. For areas with lush leaves and serious low-hanging blockages, the weeding cutter head 7 can be adjusted to a low elevation angle to penetrate deeply; for areas with tall plants and hidden weeds at the base, it can be switched to a high angle to dive in, breaking through the "dead corners" that are difficult to reach by conventional weeding equipment, greatly improving the weeding coverage rate and ensuring that no weeding operations are missed.

[0033] As Figure 1 and Figure 2As shown, the protection component includes a protective cover 4, an external gear slewing bearing 6, a driving gear 8, and a protective cover driving motor 9. The protective cover 4 has an arc surface. By using a protective cover with an arc surface shape, it can not only ensure that during the operation of the weeding cutter head, it is avoided to accidentally injure Chinese herbal medicine plants, but also prevent affecting the working process of the weeding cutter head. The protective cover driving motor 9 is a stepping motor. The output shaft of the protective cover driving motor 9 is connected to the driving gear 8; the driving gear 8 is meshed and connected with the external gear slewing bearing 6, and the protective cover 4 is installed on the outer side wall of the external gear slewing bearing 6. The external gear slewing bearing 6 is connected to the weeding motor mounting bracket 3 through an external gear slewing bearing mounting bracket 5. The external gear slewing bearing mounting bracket 5 is installed on the weeding motor mounting bracket 3, and the external gear slewing bearing 6 is rotationally matched with the external gear slewing bearing mounting bracket 5. The protective cover 4 is fixed on the external gear slewing bearing 6 by bolts. The protective cover driving motor 9 is installed on the weeding motor mounting bracket 3 and is threadedly connected to the weeding motor mounting bracket 3. The driving gear 8 is fixed on the output shaft of the protective cover driving motor 9 by a key and a setscrew. The external gear slewing bearing can reduce the volume of the mechanism, make the most of the lower space of the weeding motor mounting bracket, improve the transmission efficiency of the driving gear, have high precision, make the rotation process of the protective cover very stable, and ensure the reliability of the protective cover.

[0034] When the weeding mechanism of the present utility model operates, the angles of the weeding motor 10, the weeding motor mounting bracket 3, and the weeding cutter head 7 are adjusted by the rotation motor 1, so as to adjust the angle of the weeding cutter head 7 to a suitable position for weeding. As Figure 3 shown, the adjustment angle range of the weeding cutter head 7 is (-90° to +90°). As Figure 4 shown, by adjusting the angle of the weeding cutter head 7, the weeding cutter head 7 can extend under the leaves of Chinese herbal medicine. When the weeding cutter head 7 rotates under the leaves of Chinese herbal medicine, the protective cover 4 will also rotate synchronously above the weeding cutter head 7 to prevent the weeding cutter head 7 from accidentally injuring crops.

[0035] The working principle of the present utility model is:

[0036] When the weeding mechanism of the utility model operates, the rotation of the rotation motor 1 can drive the weeding component to swing within the range of 0° - 180°, so that the weeding component can rotate above the weeds under the Chinese herbal medicine leaves. When the weeding cutter head 7 in the weeding component rotates to the working position, above the rotating support cutter head of the protective cover, the RS997 motor 10 rotates and drives the cutter head 7 connected to it through a coupling to rotate at a high speed for weeding work. The protective cover 4 adopts a semi-circular design and is fixed on the external gear slewing bearing 6 by bolts. When the weeding cutter head 7 rotates to the operating position, the protective cover driving motor 9 works and rotates, driving the driving gear 8 to rotate synchronously. The external gear slewing bearing 6 meshing with the driving gear 8 rotates synchronously, driving the protective cover 4 to rotate above the weeding cutter head 7, avoiding crop losses during the weeding process. The existing weed recognition method is used to identify weeds. When weeds are identified, an instruction is sent to the weeding mechanism, and the weeding mechanism works.

[0037] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A weeding mechanism for weeding under the leaves of Chinese herbal medicines, characterized in that, The weeding mechanism includes: a weeding component and a rotating component for driving the rotation of the weeding component; The weeding component includes a weeding motor (10), a weeding cutter head (7) connected to the output shaft of the weeding motor (10), and a weeding motor mounting bracket (3) for fixing the weeding motor (10); The rotating component includes a mechanism connecting plate (2) and a rotating motor (1) mounted on the mechanism connecting plate (2); the output shaft of the rotating motor (1) is connected to the weeding motor mounting bracket (3); This weeding mechanism further includes a protection component, and the protection component includes a protective cover (4), an external gear slewing bearing (6), a driving gear (8), and a protective cover driving motor (9); the output shaft of the protective cover driving motor (9) is connected to the driving gear (8); the driving gear (8) is meshed and connected with the external gear slewing bearing (6), and the protective cover (4) is mounted on the outer side wall of the external gear slewing bearing (6).

2. The weeding mechanism for weeding under Chinese herbal medicine leaves according to claim 1, wherein The weeding motor (10) is fixed on the weeding motor mounting bracket (3) by bolts, and the weeding cutter head (7) is connected to the weeding motor (10) through a coupling.

3. The weeding mechanism for weeding under Chinese herbal medicine leaves according to claim 1, wherein The rotating motor (1) is connected to the weeding component through a coupling and bearings, and the rotating motor (1) is connected to the weeding motor mounting bracket (3).

4. The weeding mechanism for weeding under Chinese herbal medicine leaves according to claim 1, wherein The external gear slewing bearing (6) is connected to the weeding motor mounting bracket (3) through an external gear return mounting bracket (5), the external gear return mounting bracket (5) is mounted on the weeding motor mounting bracket (3), and the external gear slewing bearing (6) is rotationally matched with the external gear return mounting bracket (5).

5. The weeding mechanism for weeding under Chinese herbal medicine leaves according to claim 1, wherein The protective cover (4) adopts an arc surface.

6. The weeding mechanism for weeding under Chinese herbal medicine leaves according to claim 1, wherein The protective cover (4) is fixed on the external gear slewing bearing (6) by bolts.

7. The weeding mechanism for weeding under Chinese herbal medicine leaves according to claim 1, wherein The protective cover driving motor (9) is mounted on the weeding motor mounting bracket (3) and is threadedly connected to the weeding motor mounting bracket (3); the driving gear (8) is fixed on the output shaft of the protective cover driving motor (9) by a key and a setscrew.

8. The weeding mechanism for weeding under Chinese herbal medicine leaves according to claim 1, wherein The weeding motor (10) adopts an RS997 motor.

9. The weeding mechanism for weeding under Chinese herbal medicine leaves according to claim 1, wherein The rotating motor (1) adopts a stepping motor.

10. The weeding mechanism for weeding under Chinese herbal medicine leaves according to claim 1, wherein The protective cover driving motor (9) is a stepper motor.

Images