A leaf canopy trimming device and operating platform

Abstract

This utility model provides a leaf canopy pruning device and working platform, including: a U-shaped gantry support; fan-shaped cylindrical frames pivotally connected to the two side walls of the U-shaped gantry support via hinges; a bidirectional hydraulic cylinder arranged laterally between the tops of the two fan-shaped cylindrical frames; and a lateral pruning mechanism located at the center of each fan-shaped cylindrical frame. The lateral pruning mechanism includes a rotating shaft; a first motor located at the top of the rotating shaft; several layers of mounting flanges equidistantly arranged along the axial direction of the rotating shaft; and several blades fixed to the circumference of each mounting flange by fasteners. A guide mechanism is installed at the front end of the vehicle body. Through the above scheme, the opening and closing angle of the hinged fan-shaped cylindrical frames is adjusted by driving the bidirectional hydraulic cylinders, allowing the device to flexibly adjust the pruning width and working mode. At the same time, the blades on the mounting flanges can be replaced, which can adapt to the needs of leaf canopy thinning in summer and meet the high-intensity work requirements of branch pruning in winter, realizing the integration of summer and winter pruning operations and significantly improving equipment utilization.

Description

Technical Field

[0001] This utility model relates to the field of plant canopy pruning technology, specifically to a canopy pruning device and operating platform. Background Technology

[0002] In the year-round management of vine crops such as grapes and kiwifruit, summer foliage pruning and winter pruning of dead branches are two key aspects. Summer pruning focuses on controlling the excessive growth of new shoots and improving ventilation and light penetration, and requires light pruning and thinning. Winter pruning focuses on removing dead and diseased branches and adjusting the tree shape, and requires heavy pruning and heading back.

[0003] In existing technologies, summer pruning equipment and winter pruning equipment are usually two independent systems. For example, Chinese patent CN213073663U discloses a winter pruning machine that uses a horizontal rotating blade for winter sawing of coarse branches; Chinese patent CN213960883U discloses a reciprocating grape foliage canopy pruning device that uses a reciprocating saw blade for summer shoot pruning. Having two sets of equipment not only results in high purchase costs, but also adds extra burdens in terms of storage, maintenance, and relocation. Furthermore, a single set of equipment has limited functionality and cannot be used for both summer and winter by simply changing the blades; the fixed pruning angle makes it difficult to adapt to the pruning needs of different varieties and tree shapes. Utility Model Content

[0004] This utility model provides a leaf canopy trimming device and working platform to solve the problem that existing trimming equipment has a single function and cannot be used in both summer and winter.

[0005] To address the aforementioned problems, this utility model provides a leaf curtain trimming device, comprising: a U-shaped gantry support; fan-shaped cylindrical frames pivotally connected symmetrically to the two side walls of the U-shaped gantry support via hinges; a bidirectional hydraulic cylinder arranged laterally between the tops of the two fan-shaped cylindrical frames; and a lateral trimming mechanism located at the center of each fan-shaped cylindrical frame. The lateral trimming mechanism includes a rotating shaft; a first motor located at the top of the rotating shaft; several layers of mounting flanges equidistantly arranged along the axial direction of the rotating shaft; and several blades fixed circumferentially to each mounting flange by fasteners. The above scheme uses a two-way hydraulic cylinder to drive the hinged fan-shaped cylindrical frame for angle adjustment, allowing the device to flexibly adjust the pruning width and working mode. At the same time, by replacing the blades on the mounting flange, it can adapt to the needs of summer foliage thinning and meet the high-intensity work requirements of winter branch pruning, realizing integrated pruning operations in summer and winter and significantly improving equipment utilization.

[0006] According to one embodiment of the present invention, the blade includes an L-shaped bending blade. Through the above solution, the L-shaped design allows it to conform to the natural shape of the leaf canopy. During summer pruning, it can withstand greater resistance when rotating and pruning, and is less prone to deformation or damage. At the same time, it can prune branches and leaves at different levels and angles, avoiding the problems of incomplete pruning or over-pruning that may occur when using traditional straight blades.

[0007] According to one embodiment of the present invention, the L-shaped structure of the above-mentioned L-shaped bending knife is divided into a horizontal fixed section and a vertical section. The vertical section is provided with a contour cutting blade. Through the above scheme, the central part of the contour cutting blade protrudes away from the mounting flange 343, forming a smooth, outwardly protruding arc structure to conform to the natural shape and growth pattern of the branches and leaves in the leaf canopy. This reduces unnecessary contact and friction between the blade and the branches and leaves when cutting branches and leaves, and significantly improves pruning efficiency.

[0008] According to one embodiment of the present invention, the circumferential blade of the mounting flange also includes a fan-shaped cutting blade with a serrated edge on the outer edge. With the above solution, during winter pruning, replacing the L-shaped bending blade 344 with the fan-shaped cutting blade 345 with a serrated edge on the outer edge allows for the cutting of branches and leaves of different thicknesses, avoiding the problem of not being able to prune thick branches in winter due to insufficient L-shaped bending blades 344.

[0009] According to one embodiment of this utility model, the fan-shaped cutting blades are arranged in an alternating vertical arrangement. With the above scheme, the gaps between adjacent blades are effectively filled due to the alternating vertical arrangement of the fan-shaped cutting blades, avoiding pruning blind spots. During winter pruning, branches and leaves can be cut simultaneously by blades of different heights, ensuring that branches can be pruned short, reducing the need for operators to repeatedly adjust the equipment position or perform secondary pruning, and further improving pruning efficiency.

[0010] According to one embodiment of the present invention, it further includes: an upper trimming mechanism installed on the top of the U-shaped gantry support via a rotating bracket. Through the above scheme, with the flexible rotation of the rotating bracket, the upper trimming mechanism can effectively trim the top area of ​​the leaf canopy. This enables the entire trimming device to achieve three-dimensional trimming from the side to the top, greatly expanding the trimming range of a single operation and reducing the workload of manual secondary trimming.

[0011] According to one embodiment of the present invention, the upper trimming mechanism includes: a support plate, a second motor fixed to the upper surface of the support plate, and a plurality of rotating flat blades rotatably mounted on the bottom of the support plate. The support plate is provided with a gear transmission mechanism, which drives the second motor and each rotating flat blade. Through the above scheme, the gear transmission mechanism has a high transmission ratio, and the power output by the second motor can be stably transmitted to each rotating flat blade through gear meshing. This allows the rotating flat blades to maintain a constant speed and cutting force during the trimming process, and prevents uneven trimming or insufficient cutting force due to power fluctuations, thereby improving the reliability and stability of trimming.

[0012] This utility model also provides a leaf canopy pruning operation platform, including the leaf canopy pruning device of the above embodiment; it also includes: a vehicle body, an adjustment guide mechanism installed at the front end of the vehicle body, the end of the adjustment guide mechanism being connected to the column of the U-shaped gantry bracket through a quick-change clamp. Through the above solution, the vehicle body serves as the mobile base of the entire operation platform, and can freely shuttle between different sites such as orchards and plantations. Equipped with an adjustment guide mechanism, it can adapt to different operation needs.

[0013] According to one embodiment of the present invention, the adjusting guide mechanism includes a vertical guide rail mounted on the vehicle body and a telescopic hydraulic arm slidably mounted on the vertical guide rail. Equipped with the adjusting guide mechanism, the leaf canopy pruning device is driven to rise and fall vertically and extend and retract horizontally. The position and working range of the pruning device can be adjusted according to the height, width and shape of the tree crown.

[0014] The technical advantages of this application are as follows: This application provides a leaf canopy pruning device and working platform. The opening and closing angle of the hinged fan-shaped cylindrical frame is adjusted by a bidirectional hydraulic cylinder, which allows the device to flexibly adjust the pruning width and working mode. At the same time, the blades on the mounting flange can be replaced, which can meet the needs of leaf canopy thinning in summer and the high-intensity work requirements of branch and trunk coarse pruning in winter, realizing the integration of summer and winter pruning operations and significantly improving equipment utilization. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the summer pruning device structure of a leaf canopy pruning device and working platform provided by this utility model.

[0016] Figure 2 This is a front view structural diagram of a leaf canopy trimming device and a working platform provided by this utility model, showing the summer trimming device.

[0017] Figure 3 This is a side-rear view of the summer pruning device of the leaf canopy pruning device and the working platform provided by this utility model.

[0018] Figure 4 This is a schematic diagram of the lateral trimming mechanism of a leaf canopy trimming device and working platform provided by this utility model.

[0019] Figure 5 This is a schematic diagram of the L-shaped bending blade structure of a leaf canopy trimming device and working platform provided by this utility model.

[0020] Figure 6 This is a schematic diagram of the structure of a winter pruning device for a leaf canopy pruning device and a working platform provided by this utility model.

[0021] Figure 7 This is a schematic diagram of the overall structure of a leaf canopy trimming device and operating platform in summer mode provided by this utility model.

[0022] Figure 8 This is a schematic diagram of the overall structure of a leaf canopy trimming device and operating platform in winter mode provided by this utility model.

[0023] Explanation of reference numerals in the attached figures: 1. Car body; 2. Adjustable guide mechanism; 210. Vertical guide rail; 220. Telescopic hydraulic arm; 310. U-shaped gantry bracket; 320. Rotating bracket; 330. Upper trimming mechanism; 331. Second motor; 332. Rotating flat blade; 333. Bearing plate; 340. Lateral trimming mechanism; 341. First motor; 342. Rotating shaft; 343. Mounting flange; 344. L-shaped bending blade; 3441. Horizontal fixed section; 3442. Vertical section; 3443. Contour cutting blade; 345. Fan-shaped cutting blade; 350. Fan-shaped cylindrical frame; 360. Two-way hydraulic cylinder; 370. Hinge shaft. Detailed Implementation

[0024] The following will be combined with the appendix Figures 1-8 The embodiments of the technical solution of this application are described in detail below. The following embodiments are only used to illustrate the technical solution of this application more clearly, and are therefore only examples and should not be used to limit the scope of protection of this application.

[0025] Reference Figures 1-8This utility model provides a leaf curtain trimming device, including: a U-shaped gantry support 310, a fan-shaped cylindrical frame 350 symmetrically pivotally connected to the two side walls of the U-shaped gantry support 310 via a hinge shaft 370, a bidirectional hydraulic cylinder 360 arranged laterally between the top ends of the two fan-shaped cylindrical frames 350, the ends of the hydraulic rods at both ends of the bidirectional hydraulic cylinder 360 being respectively connected to the arc-shaped ends of the two fan-shaped cylindrical frames 350, and a lateral trimming mechanism 340 located at the center of each fan-shaped cylindrical frame 350; the lateral trimming mechanism 340 includes a rotating shaft 342, a first motor 341 located at the top of the rotating shaft 342, a plurality of mounting flanges 343 equidistantly arranged along the axial direction of the rotating shaft 342, and a plurality of blades fixed to the circumference of each mounting flange 343 by fasteners; The above scheme uses a bidirectional hydraulic cylinder 360 to drive the hinged fan-shaped cylindrical frame 350 to adjust the opening and closing angle, allowing the device to flexibly adjust the pruning width and working mode. At the same time, the blades on the mounting flange 343 can be replaced, which can meet the needs of summer leaf thinning and winter branch rough pruning, realizing the integration of summer and winter pruning operations and significantly improving equipment utilization.

[0026] The aforementioned blades include an L-shaped bending blade 344. Through the above scheme, the L-shaped design allows it to conform to the natural shape of the leaf canopy. During summer pruning, it can withstand greater resistance when rotating and pruning, making it less prone to deformation or damage. At the same time, it can prune branches and leaves at different levels and angles, avoiding the problems of incomplete or over-pruning that may occur with traditional straight blade pruning.

[0027] See attached document Figure 5 The L-shaped structure of the aforementioned L-shaped bending blade 344 is divided into a horizontal fixed section 3441 and a vertical section 3442. The vertical section 3442 is provided with a contoured cutting edge 3443. Through this design, it can be seen from the cross-section of the vertical section 3442 that its central part bulges away from the mounting flange 343, forming a smooth, outwardly convex arc-shaped structure. The angle between the horizontal fixed section 3441 and the vertical section 3442 is 90°~100°. During summer pruning, new shoots grow rapidly, typically growing in a fan or umbrella shape to the sides and upwards, forming a fluffy canopy. When the vertical section 3442 is the main cutting edge, its tilt angle greater than 90° causes the vertical section 3442 to tilt inwards relative to the blade's rotation center. When the blade rotates and cuts, a component pointing towards the blade's rotation center is generated. This component helps push the new shoots towards the cutting area, allowing the contoured arc surface to conform to the growth trend of the new shoots, significantly improving pruning efficiency.

[0028] The circumferential blade of the aforementioned mounting flange 343 also includes a fan-shaped cutting blade 345 with a serrated edge on the outer edge. Through the above solution, during winter pruning, replacing the L-shaped bending blade 344 with the fan-shaped cutting blade 345 with a serrated edge on the outer edge allows for the cutting of branches and leaves of different thicknesses, avoiding the problem of not being able to prune thick branches in winter due to insufficient L-shaped bending blades 344.

[0029] The aforementioned fan-shaped cutting blades 345 are arranged in an alternating vertical arrangement. Through this scheme, the gaps between adjacent blades are effectively filled due to the staggered arrangement of the fan-shaped cutting blades 345, avoiding blind spots in pruning. During winter pruning, thick branches can be cut simultaneously by blades of different heights, allowing the branches to be pruned into short branches perpendicular to the distance between the two blades. This eliminates the need for operators to repeatedly adjust the equipment position or perform secondary pruning, further improving pruning efficiency.

[0030] The above also includes an upper trimming mechanism 330 installed on top of the U-shaped gantry bracket 310 via a rotating bracket 320. With the help of the flexible rotation of the rotating bracket 320, the upper trimming mechanism 330 can effectively trim the top area of ​​the leaf canopy. This allows the entire trimming device to achieve three-dimensional trimming from the side to the top, greatly expanding the trimming range of a single operation and reducing the workload of manual secondary trimming.

[0031] The aforementioned upper trimming mechanism 330 includes: a support plate 333, a second motor 331 fixed to the upper surface of the support plate 333, and several rotating flat blades 332 rotatably mounted on the bottom of the support plate 333. The support plate 333 is equipped with a gear transmission mechanism, which drives the second motor 331 and each rotating flat blade 332. Through the above scheme, the gear transmission mechanism has a high transmission ratio, and the power output by the second motor 331 can be stably transmitted to each rotating flat blade 332 through gear meshing. This allows the rotating flat blades 332 to maintain a constant speed and cutting force during the trimming process, and prevents insufficient trimming cutting force due to power fluctuations, thereby improving the reliability and stability of trimming.

[0032] This utility model also provides a leaf canopy pruning operation platform, including the leaf canopy pruning device of the above embodiment; it also includes: a vehicle body 1, an adjustment guide mechanism 2 installed at the front end of the vehicle body 1, the end of the adjustment guide mechanism 2 is connected to the column of the U-shaped gantry bracket 310 through a quick-change clamp. Through the above scheme, the vehicle body 1 serves as the mobile base of the entire operation platform, and can freely shuttle between different sites such as orchards and plantations. Equipped with the adjustment guide mechanism 2, it can adapt to different operation needs.

[0033] The aforementioned adjustment guide mechanism 2 includes a vertical guide rail 210 mounted on the vehicle body 1 and a telescopic hydraulic arm 220 slidably mounted on the vertical guide rail 210. Equipped with the adjustment guide mechanism 2, it drives the leaf canopy pruning device to rise and fall vertically and extend and retract horizontally. The position and working range of the pruning device can be adjusted according to the height, width and shape of the tree crown.

[0034] The aforementioned vehicle body 1 is equipped with a control system that controls the switching or extension / retraction of the bidirectional hydraulic cylinder, ball screw mechanism, adjusting guide mechanism, first motor, and second motor.

[0035] Working principle: The device uses the vehicle body 1 as a mobile base and controls the working position by adjusting the guide mechanism 2. The telescopic hydraulic arm 220 rises and falls along the vertical guide rail 210 to adapt to different tree canopy heights. The telescopic hydraulic arm 220 extends and retracts horizontally to adjust the lateral distance between the pruning device and the crop. Posture adjustment: the quick-change clamp connects to the U-shaped gantry bracket 310, which can be quickly disassembled and finely adjusted to adjust the overall working angle.

[0036] The fan-shaped cylindrical frame 350 achieves angle adjustment through the joint extension and retraction of the hydraulic rods at both ends of the bidirectional hydraulic cylinder 360. The bidirectional hydraulic cylinder 360 drives the frame to rotate around the hinge axis 370, adjusting the trimming width to adapt to different density leaf curtains.

[0037] Summer thinning mode: Install L-shaped bending blade 344, whose contoured cutting surface conforms to the natural shape of the leaf canopy. When rotating, it cuts twigs through the contoured cutting surface 3443 of the vertical section 3442. The arc of the contoured cutting surface 3443 ensures that the new shoots are in the cutting area. The hydraulic rods at both ends of the bidirectional hydraulic cylinder 360 extend, so that the opening and closing angle of the fan-shaped cylindrical frame 350 is adapted to the width of the leaf canopy.

[0038] Winter coarse pruning mode: Replace with staggered fan-shaped cutting blades 345. The serrated edges on the outer edge can cut branches, and the staggered design eliminates blind spots in pruning and avoids secondary operations. Under the action of the bidirectional hydraulic cylinder 360, the fan-shaped cylindrical frame 350 closes at a certain angle, allowing the two fan-shaped cutting blades 345 to overlap, further cutting the branches into smaller, shorter branches.

[0039] The first motor 341 drives the rotating shaft 342 to rotate, which in turn drives the blade to rotate at high speed through the mounting flange 343. The speed is adjustable to meet different trimming intensity requirements.

[0040] The upper trimming mechanism 330 is steered via a rotating bracket 320, covering the top area of ​​the leaf curtain; the second motor 331 drives multiple sets of rotating flat blades 332 via a gear transmission mechanism, with a stable transmission ratio to ensure uniform cutting force, forming a three-dimensional trimming network with the lateral mechanism.

[0041] During the operation, the angle and rotation speed are finely adjusted through the control system (not shown) to ensure uniform trimming.

[0042] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A foliage curtain pruning device, characterized in that, include: The U-shaped gantry support (310) is symmetrically pivotally connected to the fan-shaped cylindrical frames (350) on both sides of the U-shaped gantry support (310) via hinge shafts (370), and a bidirectional hydraulic cylinder (360) is arranged laterally between the tops of the two fan-shaped cylindrical frames (350). The fan-shaped arc ends are provided at the center of each fan-shaped cylindrical frame (350) by a lateral trimming mechanism (340). The lateral trimming mechanism (340) includes a rotating shaft (342), a first motor (341) located at the top of the rotating shaft (342), a plurality of mounting flanges (343) equidistantly arranged along the axial direction of the rotating shaft (342), and a plurality of blades fixed to the circumference of each mounting flange (343) by fasteners.

2. A leaf curtain trimming device according to claim 1, characterised in that The blade includes an L-shaped bending blade (344).

3. A leaf curtain trimming device according to claim 2, characterised in that, The L-shaped bending knife (344) has an L-shaped structure divided into a horizontal fixed section (3441) and a vertical section (3442), and the vertical section (3442) is provided with a contour cutting blade (3443).

4. A leaf curtain trimming device according to claim 2, characterised in that The circumferential blade of the mounting flange (343) also includes a fan-shaped cutting blade (345) with a serrated edge.

5. A leaf curtain trimming device according to claim 4, characterised in that, The fan-shaped cutting blades (345) are arranged in an alternating pattern.

6. The leaf curtain trimming device according to claim 1, characterized in that Also includes: The upper trimming mechanism (330) is mounted on top of the U-shaped gantry bracket (310) via a rotating bracket (320).

7. A leaf curtain trimmer device according to claim 6, characterised in that, The upper trimming mechanism (330) includes: a support plate (333), a second motor (331) fixed to the upper surface of the support plate (333), and a plurality of rotating flat blades (332) rotatably mounted on the bottom of the support plate (333). The support plate (333) is provided with a gear transmission mechanism, which drives the second motor (331) and each of the rotating flat blades (332).

8. A foliage canopy pruning platform characterized by, Includes the leaf canopy trimming device as described in any one of claims 1 to 7; It also includes: a vehicle body (1), an adjustment guide mechanism (2) installed at the front end of the vehicle body (1), the end of the adjustment guide mechanism (2) being connected to the column of the U-shaped gantry bracket (310) via a quick-change clamp.

9. The leaf curtain pruning platform of claim 8, wherein, The adjustment guide mechanism (2) includes a vertical guide rail (210) disposed on the vehicle body (1) and a telescopic hydraulic arm (220) slidably mounted on the vertical guide rail (210).

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