Automatic hoeing mechanism

Abstract

An automatic hoeing mechanism is characterized in that the lower end of a box support is of an opening structure, a wheel disc is rotationally connected to the upper portion in the box support through a wheel shaft, an eccentric shaft is arranged on the edge of the outer side face of the wheel disc, the upper end of a swing rod is hinged to the eccentric shaft, a hoe is fixedly connected to the lower end of the swing rod, and a guide sleeve is arranged at the lower end in the box support; the guide sleeve is rotationally connected with the box support through a rotating shaft, the swing rod is slidably sleeved with the guide sleeve, and a driving assembly for driving the wheel disc to rotate is arranged on the box support. According to the hoeing mechanism, the gear motor and the gear set drive the wheel disc to rotate, the wheel disc drives the swing rod to swing through the eccentric shaft, the guide sleeve capable of rotating freely provides guidance for the swing rod at the moment, the hoe at the lower end of the swing rod swings back and forth in a fixed arc line, the hoeing action is achieved, and roots of weeds are hoed off and thrown to the ground. The problem that residual root systems continue to grow for a short time due to the fact that weed root systems cannot be cleaned away through a rotary tillage roller is solved, and the sesame inter-row hoeing effect is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of sesame weeding equipment, in particular to an automatic weeding mechanism. Background Art

[0002] During the sesame seedling stage, due to sufficient light between the rows, a large number of weeds will grow and absorb the fertilizer needed by the sesame seedlings. Therefore, it is particularly important to do a good job of weeding during the seedling stage.

[0003] Improper control of pesticide spraying and weeding will spray pesticides onto the leaves of seedlings. Therefore, weeding is currently mainly done by manual hoes or walk-behind weeders. Manual hoes are inefficient and labor-intensive. Walk-behind weeders currently weed mainly through the rotary tillage roller rotating at the bottom (see utility model patent application number 2019104593899). This weeding method is more efficient, but the depth of the rotary tillage roller entering the ground is limited, and there is a problem of incomplete removal of weed roots. The remaining roots will regrow between the sesame rows, requiring high-frequency repeated weeding operations, which needs to be improved. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an automatic weeding mechanism.

[0005] The technical scheme of the utility model is: an automatic weeding mechanism, comprising a box support, a wheel disc, a swing rod and a hoe, the box support is in a square cylindrical shape as a whole, the lower end of the box support is an open structure, the wheel disc is rotatably connected to the upper part of the box support through a wheel axle, the wheel axle is fixedly connected to the center of the wheel disc, an eccentric shaft is provided at the edge of the outer side of the wheel disc, the upper end of the swing rod is hinged to the eccentric shaft, the hoe is fixedly connected to the lower end of the swing rod, a guide sleeve is provided at the lower end of the box support, the guide sleeve is a square sleeve, the guide sleeve is rotatably connected to the box support through a rotating shaft, the swing rod is a square rod body, the middle part of the swing rod is slidably sleeved in the guide sleeve, and a driving component for driving the wheel disc to rotate is provided on the box support.

[0006] Preferably, the driving assembly includes a reduction motor, a driving sprocket and a driven sprocket, the reduction motor is fixedly mounted on the upper end of the box bracket, the driving sprocket is coaxially fixedly connected to the output shaft of the reduction motor, the driven sprocket is coaxially fixedly connected to the wheel axle, and a chain is installed between the driving sprocket and the driven sprocket.

[0007] Preferably, a support plate is provided at the upper end of the box support, a right-angle support is provided on the support plate, triangular reinforcement plates are provided on both sides of the right-angle support, and the reduction motor is installed in the right-angle support.

[0008] Preferably, a U-shaped sleeve is provided in the middle of the hoe, the U-shaped sleeve is fixedly sleeved on the lower end of the swing rod, and a through hole for fixed connection is provided on the U-shaped sleeve.

[0009] Preferably, a camera is mounted downwardly through the bracket on the lower portion of the outer side surface of the box bracket.

[0010] Preferably, a support rod is provided in the middle of the outer side surface of the box bracket, and a sleeve is provided at the outer end of the support rod. The outer end of the support rod is vertically fixedly connected to a drug delivery tube, which is fixedly sleeved in the sleeve. A nozzle is provided at the lower end of the drug delivery tube, and a solenoid valve is provided on the drug delivery tube.

[0011] Preferably, a conical protective cover made of plastic is coaxially fixedly mounted on the lower end of the drug delivery tube.

[0012] The beneficial technical effects of the utility model are:

[0013] The weeding mechanism drives the wheel disc to rotate through a reduction motor and a gear set, and the wheel disc drives the swing rod to swing through an eccentric shaft. During this process, a freely rotatable guide sleeve provides guidance for the swing rod, so that the hoe at the lower end of the swing rod swings back and forth in a fixed arc to achieve the weeding action, cut off the weed roots and throw them to the ground, avoiding the problem that the weed roots cannot be completely removed by the rotary tillage roller, resulting in the residual roots continuing to grow for a short time, effectively improving the weeding effect between sesame rows, and no frequent and repeated weeding operations are required. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a main structural schematic diagram of the utility model;

[0016] Figure 3 yes Figure 2 AA section structural diagram;

[0017] Figure 4 yes Figure 3 BB-direction cross-sectional structural diagram;

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the utility model after the spraying mechanism is installed;

[0019] In the figure, 11. box bracket, 12. wheel disc, 121. wheel axle, 122. eccentric shaft, 13. swing rod, 14. hoe, 141. U-shaped sleeve, 15. guide sleeve, 151. rotating shaft, 161. reduction motor, 162. driving sprocket, 163. driven sprocket, 164. chain, 165. right angle bracket, 17. camera, 181. support rod, 182. drug delivery tube, 183. solenoid valve, 184. conical cover. DETAILED DESCRIPTION

[0020] Example 1, see the attached specification Figure 1-4 , an automatic weeding mechanism includes a box bracket 11, a wheel disc 12, a swing arm 13 and a hoe 14. The lower end of the box bracket 11 is an open structure. The wheel disc 12 is rotatably connected to the upper part of the box bracket 11 through a wheel axle 121. An eccentric shaft 122 is provided at the edge of the outer side surface of the wheel disc 12. The upper end of the swing arm 13 is hinged to the eccentric shaft 122. The box bracket 11 can form a protective cover structure, which can protect the internal wheel disc 12 and the swing arm. The hoe 14 is fixedly connected to the lower end of the swing arm 13. A guide sleeve 15 is provided at the lower end of the box bracket 11. The guide sleeve 15 is rotatably connected to the box bracket 11 through a rotating shaft 151. The middle part of the swing arm 13 is slidably sleeved in the guide sleeve 15. Therefore, during the swing of the swing arm, the guide sleeve 15 will rotate and slide along it, playing the role of swinging guide, and controlling it to swing along a fixed line.

[0021] A driving assembly for driving the wheel disc 12 to rotate is provided on the box bracket 11, and the driving assembly includes a reduction motor 161, a driving sprocket 162 and a driven sprocket 163. A support plate is provided at the upper end of the box bracket 11, and a right-angle bracket 165 is provided on the support plate. The reduction motor 161 is installed in the right-angle bracket 165, and the reduction motor 161 is stably supported by the right-angle bracket 165. The driving sprocket 162 is connected to the output shaft of the reduction motor 161, and the driven sprocket 163 is connected to the wheel axle 121. A chain 164 is installed between the driving sprocket 162 and the driven sprocket 163. The reduction motor 161 drives the driven gear to rotate through the driving gear and the chain 164, and then the drum wheel axle 121 drives the wheel disc 12 inside the box bracket 11 to rotate.

[0022] A U-shaped sleeve 141 is provided in the middle of the hoe 14 , and the U-shaped sleeve 141 is fixedly sleeved on the lower end of the swing rod 13 . After the hoe 14 is continuously operated, it needs to be maintained or replaced, and the U-shaped sleeve 141 can be used to facilitate disassembly and installation.

[0023] A camera 17 is installed on the lower part of the outer side surface of the box bracket 11 through the bracket. The weeding status is monitored in real time through the camera 17, which is convenient for timely adjusting the weeding frequency of the hoe 14 and fine-tuning the walking route.

[0024] The working principle of the automatic weeding mechanism is: start the reduction motor 161, the reduction motor 161 drives the driven gear to rotate through the driving gear and the chain 164, and then the drum wheel shaft 121 drives the wheel plate 12 inside the box bracket 11 to rotate, and the wheel plate 12 drives the swing rod 13 to swing through the eccentric shaft 122. During this process, the guide sleeve 15 slides relative to the swing rod and reciprocates under the action of the rotating shaft 151, providing a guide for the swing, so that the hoe 14 at the lower end of the swing rod 13 reciprocates in a fixed arc, realizing the weeding action, cutting the weed roots and throwing them to the ground, avoiding the problem that the rotary tillage roller cannot completely remove the weed roots and the residual roots continue to grow for a short time.

[0025] Example 2, see the attached specification Figure 5 This embodiment is basically the same as the first embodiment, except that a support rod 181 is provided in the middle of the outer side surface of the box bracket 11, and a drug delivery tube 182 is vertically fixedly connected to the outer end of the support rod 181. The drug delivery tube 182 is connected to the medicine box, and a nozzle is provided at the lower end of the drug delivery tube 182 to spray the drug in atomized form. A solenoid valve 183 is provided on the drug delivery tube 182 to automatically control the start and stop of the spraying operation. A conical protective cover is coaxially fixedly installed at the lower end of the drug delivery tube 182, and the spraying range of the drug is controlled by the protective cover to prevent the drug from splashing onto the crop and causing damage to it, and the weed control effect is ensured by combining drugs and physics.

Claims

1. An automatic weeding mechanism, characterized by: It includes a box bracket, a wheel disc, a swing rod and a hoe. The lower end of the box bracket is an open structure. The wheel disc is rotatably connected to the upper part of the box bracket through a wheel axle. An eccentric shaft is provided at the edge of the outer side of the wheel disc. The upper end of the swing rod is hinged to the eccentric shaft. The hoe is fixedly connected to the lower end of the swing rod. A guide sleeve is provided at the lower end of the box bracket. The guide sleeve is rotatably connected to the box bracket through a rotating shaft. The middle part of the swing rod is slidably sleeved in the guide sleeve. A driving component for driving the wheel disc to rotate is provided on the box bracket.

2. The automatic weeding mechanism according to claim 1, characterized in that: The driving assembly includes a reduction motor, a driving sprocket and a driven sprocket. The reduction motor is fixedly installed on the upper end of the box bracket. The driving sprocket is connected to the output shaft of the reduction motor, and the driven sprocket is connected to the wheel axle. A chain is installed between the driving sprocket and the driven sprocket.

3. The automatic weeding mechanism according to claim 2, characterized in that: A support plate is provided at the upper end of the box support, a right-angle support is provided on the support plate, and the reduction motor is installed in the right-angle support.

4. The automatic weeding mechanism according to claim 1, characterized in that: A U-shaped sleeve is arranged in the middle of the hoe, and the U-shaped sleeve is fixedly sleeved on the lower end of the swing rod.

5. The automatic weeding mechanism according to claim 1, characterized in that: A camera is installed on the lower part of the outer side surface of the box bracket through a bracket.

6. The automatic weeding mechanism according to claim 1, characterized in that: A support rod is provided in the middle of the outer side surface of the box support, and a medicine delivery tube is vertically fixedly connected to the outer end of the support rod. A nozzle is provided at the lower end of the medicine delivery tube, and a solenoid valve is provided on the medicine delivery tube.

7. The automatic weeding mechanism according to claim 6, characterized in that: A conical protective cover is coaxially fixedly mounted on the lower end of the drug delivery tube.

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