Orchard weeding device and weeding machine

Abstract

The utility model provides an orchard weeding device and a weeding machine which are used for solving the problems that in the prior art, complex and changeable working environments of an orchard cannot be adapted, and the anti-blocking capacity is poor. Comprising a shell, a cutter shaft, a plurality of weeding mechanisms and a power mechanism, the shell is of an n-shaped structure, and the cutter shaft is rotationally arranged in an n-shaped channel of the shell; the plurality of weeding mechanisms are spirally arranged along the axial direction of the cutter shaft; each weeding mechanism comprises a cutter holder fixedly connected to the side face of the cutter shaft, a straight cutter perpendicularly and fixedly connected to the cutter holder, two weeding assemblies symmetrically and rotationally arranged on the two sides of the straight cutter, and a distance adjusting assembly used for adjusting the two weeding assemblies to move in the opposite direction or in the reverse direction. The power mechanism comprises a power assembly arranged on the back face of the shell and an annular transmission part used for enabling the cutter shaft to be in transmission connection with the power assembly, and the power assembly drives the cutter shaft to rotate through transmission of the annular transmission part. The device can adapt to the complex and changeable working environment of the orchard, and weed winding and blocking can be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, and in particular relates to an orchard weeding device and weeding machine. Background Technology

[0002] Orchard weeds compete with fruit trees for water and fertilizer, and if not controlled, they will seriously affect the yield and quality of the fruit trees. With the scaling up of orchard planting, manual weeding is effective and inexpensive, but its low efficiency makes it unsuitable for the needs of large-scale planting. Chemical weeding is efficient and saves time and labor, but the application of chemical herbicides can pollute the branches and leaves of fruit trees, and there may be toxic residues in the fruit, which is not conducive to the development of green agriculture.

[0003] Currently, most mechanical weeding machines on the market use disc-type weeding blades. However, disc-type weeding machines cannot adapt to the complex and ever-changing working environment of orchards. They cannot cut and shred branches and shrubs in the weeds. Furthermore, during the weeding process, weeds will get tangled on the cutting blades, resulting in poor anti-clogging ability and affecting the blades' operation. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an orchard weeding device and weeding machine to solve the problems of the prior art being unable to adapt to the complex and ever-changing working environment of orchards and having poor anti-clogging ability.

[0005] To achieve the above and other related objectives, this utility model provides an orchard weeding device, comprising:

[0006] The housing and the cutter shaft are provided. The housing has a U-shaped structure, and the cutter shaft is rotatably disposed within the U-shaped channel of the housing.

[0007] Multiple weeding mechanisms are arranged spirally along the axial direction of the cutter shaft.

[0008] Each of the weeding mechanisms includes a blade holder fixed to the side of the blade shaft, a straight blade vertically fixed to the blade holder, two weeding components symmetrically and rotatably disposed on both sides of the straight blade, and a distance adjustment component for adjusting the relative movement or opposite movement of the two weeding components.

[0009] Each of the weeding components includes a blade rotatably mounted on the distance adjustment component and an arc-shaped protrusion fixed to the distance adjustment component. The blade has a limiting arc-shaped groove, and the arc-shaped protrusion slides in conjunction with the limiting arc-shaped groove.

[0010] The power mechanism includes a power component located on the back of the housing and an annular transmission part for drivingly connecting the cutter shaft to the power component. The power component drives the cutter shaft to rotate through the annular transmission part.

[0011] Optionally, two blind slots are symmetrically formed on both sides of the tool holder;

[0012] The pitch adjustment assembly includes a first screw rotatably connected in one blind groove, a second screw rotatably connected in another blind groove, two telescopic shafts that are slidably engaged with the inner wall of the blind groove, a limiting block fixed to one side wall of each telescopic shaft, and a pitch adjustment power component that drives the first screw and the second screw to rotate coaxially. The threads on the first screw and the second screw have opposite directions. One end of each telescopic shaft has an internal thread that is threadedly engaged with the first screw and the second screw. The side wall of the blind groove has a limiting groove that is slidably engaged with the limiting block.

[0013] The slinger blade is rotatably engaged with the other end of the telescopic shaft, and the arc-shaped protrusion is fixedly connected to the side wall of the other end of the telescopic shaft.

[0014] Optionally, the other end of the telescopic shaft has a scale bar on its side wall.

[0015] Optionally, the pitch adjustment power component is a dual-output shaft motor, which is fixedly connected to the middle position of the tool holder.

[0016] Optionally, the annular transmission unit is a sprocket drive wheel assembly or a belt pulley drive wheel assembly.

[0017] Optionally, the sprocket drive assembly includes a driving sprocket, a driven sprocket, and a chain. The driven sprocket is coaxially fixedly engaged with one end of the cutter shaft. The driving sprocket is rotatably mounted on the housing. The driving sprocket and the driven sprocket are connected by the chain drive. The power component drives the driving sprocket to rotate.

[0018] Optionally, the belt drive pulley assembly includes a driving pulley, a driven pulley, and a belt. The driven pulley is coaxially fixedly engaged with one end of the cutter shaft. The driving sprocket is rotatably mounted on the housing. The belt drives the driving pulley and the driven pulley together. The power component drives the driving pulley to rotate.

[0019] Optionally, the power component includes an electric motor or a hydraulic motor.

[0020] Optionally, the blade is Y-shaped, and the outer side of the blade head has cutting serrations.

[0021] A weeding machine, comprising the aforementioned orchard weeding device;

[0022] It also includes a chassis base and two tracks, the two tracks being symmetrically installed on both sides of the chassis base, and the top of the housing being fixedly connected to the bottom of the chassis base.

[0023] As described above, the orchard weeding device and weeder of this utility model have at least the following beneficial effects:

[0024] The power unit is connected to the cutter shaft via a ring-shaped transmission unit. As the cutter shaft rotates, multiple weeding mechanisms arranged spirally along its axis sequentially process weeds of varying heights, expanding the coverage area of ​​a single weeding operation and improving efficiency. The spiral arrangement also ensures a more continuous and stable weeding process, guaranteeing multiple cuts and a higher weed breakage rate, thus preventing tangling and blockage. The adjustable spacing component, working in conjunction with the two weeding components, allows for adjustment of the spacing based on weed density and growth, ensuring the weeding density produced by the sweeping blades adapts to the actual terrain and weed growth, improving efficiency, targeting, and adaptability. The straight blade, in conjunction with the sweeping blades located on either side, cuts branches and shrubs within the weeds, while the sweeping blades further pulverize the weeds and branches, making it suitable for orchards with mixed debris, thus enhancing its applicability and versatility. The arc-shaped protrusion slides into the arc-shaped limiting groove on the blade, providing stable positioning and rotation guidance for the blade. This ensures the stability of the weeding effect and helps extend the service life of the blade. Attached Figure Description

[0025] Figure 1 The diagram shown is a three-dimensional structural schematic of an orchard weeding device according to this utility model.

[0026] Figure 2 The image shown is a cross-sectional view of the weeding mechanism of an orchard weeding device according to this utility model.

[0027] Figure 3 This is a cross-sectional view of the weeding mechanism of an orchard weeding device according to this utility model from another perspective.

[0028] Figure 4 The diagram shown is a three-dimensional structural schematic of a weeding machine according to this utility model.

[0029] Component designation explanation

[0030] Housing 1, cutter shaft 2;

[0031] Weeding mechanism 3, blade holder 31, blind groove 311, straight blade 32, weeding component 33, slinging blade 331, arc-shaped protrusion 332, limiting arc-shaped groove 333, distance adjustment component 34, first screw 340, second screw 341, telescopic shaft 342, limiting block 343, distance adjustment power component 344, limiting groove 345, scale bar 346;

[0032] Power mechanism 4, power assembly 41, ring transmission part 42, sprocket drive wheel set 421, driving sprocket 4211, driven sprocket 4212, chain 4213;

[0033] 5. Chassis base; 6. Tracks. Detailed Implementation

[0034] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0035] Please see Figures 1 to 4 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0036] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0037] In this embodiment, please refer to Figures 1 to 3 This utility model provides an orchard weeding device, including: multiple weeding mechanisms 3, a power mechanism 4, a housing 1 and a cutter shaft 2. The housing 1 has a U-shaped structure, and the cutter shaft 2 is rotatably disposed in the U-shaped channel of the housing 1.

[0038] Multiple weeding mechanisms 3 are spirally arranged along the axial direction of the cutter shaft 2, which can form a continuous cutting trajectory, so that weeds are cut in layers at different heights, effectively improving the coverage and weeding efficiency.

[0039] Each of the weeding mechanisms 3 includes a blade holder 31 fixed to the side of the blade shaft 2, a straight blade 32 vertically fixed to the blade holder 31, two weeding components 33 symmetrically and rotatably disposed on both sides of the straight blade 32, and a distance adjustment component 34 for adjusting the two weeding components 33 to move towards each other or in opposite directions.

[0040] Each of the weeding components 33 includes a rotatable blade 331 mounted on the distance adjustment component 34 and an arc-shaped protrusion 332 fixed to the distance adjustment component 34. The blade 331 has a limiting arc-shaped groove 333, and the arc-shaped protrusion 332 slides in engagement with the limiting arc-shaped groove 333. The width of the straight blade 32 can be greater than the width of the blade 331, which facilitates better cutting of branches and shrubs. When the blades 331 rotate, adjacent blades 331 will not interfere with each other.

[0041] The power mechanism 4 includes a power component 41 located on the back of the housing 1 and an annular transmission part 42 for driving the cutter shaft 2 to the power component 41. The power component 41 drives the cutter shaft 2 to rotate through the annular transmission part 42. The overall structure is compact, occupies little space, is simple in structure, and is easy to install, debug and maintain.

[0042] The power unit 41 is connected to the cutter shaft 2 via the annular transmission unit 42. When the cutter shaft 2 rotates, multiple weeding mechanisms 3 arranged spirally along the axis of the cutter shaft 2 can sequentially process weeds of different heights, expanding the coverage area of ​​a single weeding operation and improving weeding efficiency. Simultaneously, the spiral arrangement makes the weeding process more continuous and stable, ensuring that weeds are cut multiple times, resulting in a higher weed breakage rate and preventing weed entanglement and blockage. The spacing adjustment component 34, in cooperation with the two weeding components 33, allows the spacing between the two weeding components 33 to be adjusted according to the density and growth of the weeds. This ensures that the weeding density generated by the sling cutter 331 is adapted to the actual terrain and weed growth, improving weeding efficiency, targeting, and adaptability. The straight blade 32, in cooperation with the sling cutters 331 located on both sides of it, allows the straight blade 32 to cut branches and shrubs among the weeds, while the sling cutters 331 finely pulverize the weeds and branches, making it suitable for orchard environments with mixed debris, thus improving applicability and versatility. The arc-shaped protrusion 332 slides into the arc-shaped limiting groove 345 on the blade 331, providing stable limiting and rotation guidance for the blade 331. This ensures the stability of the weeding effect and helps extend the service life of the blade 331.

[0043] In this embodiment, please refer to Figures 1 to 3 The tool holder 31 has two blind grooves 311 symmetrically formed on both sides;

[0044] The adjusting assembly 34 includes a first screw 340 rotatably connected in one blind groove 311, a second screw 341 rotatably connected in another blind groove 311, two telescopic shafts 342 that are slidably engaged with the inner wall of the blind groove 311, a limiting block 343 fixed to one side wall of each telescopic shaft 342, and an adjusting power member 344 that drives the first screw 340 and the second screw 341 to rotate coaxially. The threads on the first screw 340 and the second screw 341 have opposite directions of rotation. One end of each telescopic shaft 342 has an internal thread that is threadedly engaged with the first screw 340 and the second screw 341. The side wall of the blind groove 311 has a limiting groove 345 that is slidably engaged with the limiting block 343.

[0045] The slinger 331 is rotatably engaged with the other end of the telescopic shaft 342, and the arc-shaped protrusion 332 is fixedly connected to the side wall of the other end of the telescopic shaft 342.

[0046] The first screw 340 and the second screw 341 are driven to rotate simultaneously by the adjustable power component 344. The rotation of the first screw 340 and the second screw 341 drives the two telescopic shafts 342 to extend out of the blind groove 311 or retract into the blind groove 311 at the same time. The limiting block 343 moves within the limiting groove 345, thereby adjusting the position of the sling cutter 331. The threaded drive has high precision and can achieve precise adjustment of the position of the sling cutter 331. The distance between the two sling cutters 331 can be precisely controlled according to the growth of weeds or different weeding needs to achieve the best weeding effect. In areas with sparse weeds, the distance between the sling cutters 331 can be increased to improve weeding efficiency; in areas with dense weeds, the distance between the sling cutters 331 can be decreased to enhance the weeding effect, thus improving the adaptability of the equipment to different environments.

[0047] In this embodiment, please refer to Figure 2 The telescopic shaft 342 has a scale strip 346 on the side wall of the other end. When adjusting the spacing of the blades 331, it can be precisely adjusted according to the required size to ensure that the positions of the blades 331 on both sides are symmetrical and meet specific weeding requirements, thereby improving the uniformity and effectiveness of weeding.

[0048] In this embodiment, please refer to Figure 2 The pitch adjustment power component 344 is a dual-output shaft motor, which is fixedly connected to the middle of the tool holder 31. The dual-output shaft motor can simultaneously drive two screws to rotate coaxially, ensuring that the rotation speed and direction of the screws on both sides are completely consistent, enabling the two telescopic shafts 342 to move synchronously, thereby ensuring that the spacing of the two blades 331 can be adjusted symmetrically and evenly. The dual-output shaft motor can be wirelessly controlled, improving the convenience and flexibility of control.

[0049] In this embodiment, please refer to Figure 1The annular transmission part 42 is a chain drive wheel set 421 or a belt drive wheel set.

[0050] In this embodiment, please refer to Figure 1 The sprocket drive assembly 421 includes a driving sprocket 4211, a driven sprocket 4212, and a chain 4213. The driven sprocket 4212 is coaxially fixed to one end of the cutter shaft 2. The driving sprocket 4211 is rotatably mounted on the housing 1. The driving sprocket 4211 and the driven sprocket 4212 are connected by the chain 4213. The power assembly 41 drives the driving sprocket 4211 to rotate. Driven by the power assembly 41, the driving sprocket 4211 drives the driven sprocket 4212 to rotate via the chain 4213, ensuring efficient power transmission. The meshing transmission between the chain 4213 and the sprocket is relatively stable with minimal power loss, ensuring a stable power output for the cutter shaft 2 and enabling continuous and stable weeding operations. Sprockets and chains 4213 are typically made of metal, which has high strength and wear resistance, and can adapt to harsh environments such as dust and mud in weeding work, thus ensuring reliability and stability under different working conditions.

[0051] In this embodiment, the belt drive pulley assembly includes a driving pulley, a driven pulley, and a belt. The driven pulley is coaxially fixed to one end of the cutter shaft 2. The driving sprocket 4211 is rotatably mounted on the housing 1. The belt drives the driving pulley and the driven pulley. The power assembly 41 drives the driving pulley to rotate. The belt transmits power to the driving and driven pulleys through friction. During power transmission, the belt acts as a buffer, absorbing and reducing vibrations and impacts during transmission, resulting in smooth rotation of the cutter shaft 2, improving working comfort, and extending its service life.

[0052] In this embodiment, please refer to Figure 1 The power component 41 includes an electric motor or a hydraulic motor.

[0053] In this embodiment, please refer to Figure 2 The rotary cutter 331 is Y-shaped, and the outer surface of the cutter head has cutting serrations. The Y-shaped structure is relatively symmetrical, which helps maintain balance better during the high-speed rotation of the rotary cutter 331, making the cutting process more stable. The cutting serrations increase the friction and cutting force between the cutter head and the weeds, effectively improving the rotary cutter 331's ability to cut different types of weeds.

[0054] In this embodiment, please refer to Figures 1 to 4 A weeding machine, comprising the orchard weeding device described in any of the above embodiments;

[0055] The system also includes a chassis base 5 and two tracks 6, which are symmetrically mounted on both sides of the chassis base 5. The top of the housing 1 is fixedly connected to the bottom of the chassis base 5. The two tracks symmetrically mounted on both sides of the chassis base 5 provide a large contact area with the ground, offering better grip and stability, ensuring the weeder can smoothly reach every corner of the orchard for weeding operations. This adaptability allows for flexibility in different working environments, and the speed difference between the two tracks 6 can be controlled for flexible steering. The tracks 6 can be driven by an electric motor or a hydraulic motor, and the two tracks 6 can be independently driven. A driver's seat may be located above the chassis base 5, requiring manual driving; alternatively, a wireless communication module can be used to send control signals to the tracks 6, enabling more flexible and convenient control and thus improving weeding efficiency.

[0056] Working principle: When the weeder is working, during the movement of the weeder, the power component 41 is connected to the cutter shaft 2 through the annular transmission unit 42. When the cutter shaft 2 rotates, multiple weeding mechanisms 3 arranged spirally along the axis of the cutter shaft 2 can process weeds of different heights in sequence. The straight blade 32 cooperates with the swivel blades 331 located on both sides of the straight blade 32, so that the straight blade 32 cuts branches and shrubs in the weeds, and the swivel blades 331 refine and crush the weeds and branches. The arc-shaped protrusion 332 slides and cooperates with the arc-shaped limiting groove 345 on the swivel blade 331, which provides stable limiting and rotation guidance for the swivel blade 331. On the one hand, it ensures the stability of the weeding effect, and on the other hand, it helps to extend the service life of the swivel blade 331. When the distance between the two blades 331 needs to be adjusted according to different weeding needs, the first screw 340 and the second screw 341 are driven to rotate simultaneously by the adjusting power component 344. The rotation of the first screw 340 and the second screw 341 drives the two telescopic shafts 342 to extend out of the blind groove 311 or retract into the blind groove 311 at the same time. The limiting block 343 moves in the limiting groove 345, thereby adjusting the position of the blades 331.

[0057] In summary, this invention connects the power assembly 41 to the cutter shaft 2 via the annular transmission unit 42. When the cutter shaft 2 rotates, multiple weeding mechanisms 3 arranged spirally along the axial direction of the cutter shaft 2 can sequentially process weeds of different heights, expanding the coverage area of ​​a single weeding operation and improving weeding efficiency. Simultaneously, the spiral arrangement makes the weeding process more continuous and stable, ensuring that weeds are cut multiple times, resulting in a higher weed breakage rate and preventing weed entanglement and blockage. Through the cooperation of the spacing adjustment component 34 and the two weeding components 33, the distance between the two weeding components 33 can be adjusted according to the density and growth of the weeds, ensuring that the weeding density generated by the sling cutter 331 is adapted to the actual terrain and weed growth, thus improving weeding efficiency, targeting, and adaptability. By cooperating with the straight blade 32 and the swivel blades 331 located on both sides of the straight blade 32, the straight blade 32 cuts branches and shrubs among the weeds, while the swivel blades 331 finely pulverize the weeds and branches. This makes it suitable for operating environments with mixed debris in orchards, improving its applicability and versatility. The arc-shaped protrusion 332 slides into the arc-shaped limiting groove 345 on the swivel blade 331, providing stable limiting and rotational guidance for the swivel blade 331. This ensures the stability of the weeding effect and helps extend the service life of the swivel blade 331. Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0058] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An orchard weeding device, characterized in that, include: The housing and the cutter shaft are provided. The housing has a U-shaped structure, and the cutter shaft is rotatably disposed within the U-shaped channel of the housing. Multiple weeding mechanisms are arranged spirally along the axial direction of the cutter shaft. Each of the weeding mechanisms includes a blade holder fixed to the side of the blade shaft, a straight blade vertically fixed to the blade holder, two weeding components symmetrically and rotatably disposed on both sides of the straight blade, and a distance adjustment component for adjusting the relative movement or opposite movement of the two weeding components. Each of the weeding components includes a blade rotatably mounted on the distance adjustment component and an arc-shaped protrusion fixed to the distance adjustment component. The blade has a limiting arc-shaped groove, and the arc-shaped protrusion slides in conjunction with the limiting arc-shaped groove. The power mechanism includes a power component located on the back of the housing and an annular transmission part for drivingly connecting the cutter shaft to the power component. The power component drives the cutter shaft to rotate through the annular transmission part.

2. The orchard weeding device according to claim 1, characterized in that: Two blind slots are symmetrically formed on both sides of the tool holder; The pitch adjustment assembly includes a first screw rotatably connected in one blind groove, a second screw rotatably connected in another blind groove, two telescopic shafts that are slidably engaged with the inner wall of the blind groove, a limiting block fixed to one side wall of each telescopic shaft, and a pitch adjustment power component that drives the first screw and the second screw to rotate coaxially. The threads on the first screw and the second screw have opposite directions. One end of each telescopic shaft has an internal thread that is threadedly engaged with the first screw and the second screw. The side wall of the blind groove has a limiting groove that is slidably engaged with the limiting block. The slinger blade is rotatably engaged with the other end of the telescopic shaft, and the arc-shaped protrusion is fixedly connected to the side wall of the other end of the telescopic shaft.

3. The orchard weeding device according to claim 2, characterized in that: The telescopic shaft has a scale bar on the side wall at the other end.

4. The orchard weeding device according to claim 2, characterized in that: The adjustable power component is a dual-output shaft motor, which is fixedly connected to the middle position of the tool holder.

5. The orchard weeding device according to claim 1, characterized in that: The annular transmission unit is a chain drive wheel assembly or a belt drive wheel assembly.

6. The orchard weeding device according to claim 5, characterized in that: The sprocket drive assembly includes a driving sprocket, a driven sprocket, and a chain. The driven sprocket is coaxially fixed to one end of the cutter shaft. The driving sprocket is rotatably mounted on the housing. The driving sprocket and the driven sprocket are connected by the chain drive. The power component drives the driving sprocket to rotate.

7. The orchard weeding device according to claim 6, characterized in that: The belt drive pulley assembly includes a driving pulley, a driven pulley, and a belt. The driven pulley is coaxially fixed to one end of the cutter shaft. The driving sprocket is rotatably mounted on the housing. The belt drives the driving pulley and the driven pulley together. The power assembly drives the driving pulley to rotate.

8. The orchard weeding device according to claim 1, characterized in that: The power component includes an electric motor or a hydraulic motor.

9. The orchard weeding device according to claim 1, characterized in that: The blade is Y-shaped, and the outer side of the blade head has cutting serrations.

10. A weeding machine, characterized in that: Includes the orchard weeding device as described in any one of claims 1-9; It also includes a chassis base and two tracks, the two tracks being symmetrically installed on both sides of the chassis base, and the top of the housing being fixedly connected to the bottom of the chassis base.

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