A jujube tree bud rubbing execution device and a use method thereof

Abstract

This invention discloses a bud-removing device and its usage method for jujube trees, belonging to the field of agricultural machinery technology. The device consists of protective fixing, power, balance adjustment, and execution components. A motor drives the main shaft to rotate via a coupling. Balance bars are symmetrically arranged along the main shaft axis and locked using threaded connections and fastening nuts, allowing for precise calibration of the rotational center of gravity and ensuring stable high-speed operation. A flexible rod is detachably connected to the balance bar, with a bud-removing wire connected to its lower end. During rotation, centrifugal force forms a catenary curve, and the curvature of the curve is adjusted by the motor speed, achieving precise bud removal without damaging jujube branches or lignified branches. This device can be connected to a robotic arm or a handheld operating lever, adapting to both automated and manual operation modes. Its compact structure, low manufacturing cost, and high bud-removing efficiency effectively reduce nutrient consumption, improve ventilation and light penetration in jujube trees, and significantly enhance the mechanization level of jujube tree planting.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a device for removing buds from jujube trees and its usage method. Background Technology

[0002] Bud removal is a crucial annual operation in jujube tree cultivation and management. It is mainly used to remove excess tender buds, vigorous buds, and ineffective buds sprouting from jujube tree branches, thereby reducing ineffective nutrient consumption, improving ventilation and light penetration in the tree, promoting reproductive growth of jujube trees, and playing an important role in improving jujube yield and fruit quality.

[0003] Currently, bud removal on jujube trees is still mainly done manually using simple handheld tools, which suffers from problems such as high labor intensity, low efficiency, high labor costs, and strict seasonal limitations. Existing simple pruning tools on the market are ill-suited to the budding growth characteristics and branch structure of jujube trees, exhibiting drawbacks such as slow pruning speed, low bud removal accuracy, and easy damage to jujube branches and the tree itself, failing to meet the needs of efficient and precise bud removal in large-scale orchards. Therefore, developing a specialized bud removal machine that is simple in structure, easy to operate, precise in bud removal, and does not damage the tree has become an urgent need for the jujube planting industry. Summary of the Invention

[0004] The purpose of this invention is to provide a compact, low-cost, stable, and precise bud-removing device for jujube trees and its usage method.

[0005] To achieve the above objectives, the present invention provides a jujube tree bud removal execution device, comprising a fixing plate, a power component, a balance adjustment component, an execution component, and a protective fixing component; The protective fixing assembly includes a fixing plate, a motor protective shell, a motor flange, and a sealing plate; The power assembly includes a motor, cable, coupling, main shaft, bearing housing, and bearing; the motor is installed in the cavity surrounded by a fixed plate, motor protective shell, and motor flange; the motor is powered by a cable; the output shaft of the motor is coaxially locked to the main shaft via a coupling; the main shaft is rotatably supported in the bearing housing by the bearing. The balance adjustment assembly includes at least one pair of symmetrically arranged balance bars. The upper end of the balance bar is connected to the main shaft by a threaded connection. The balance bar can be adjusted in the radial direction of the main shaft to calibrate the center of rotation to the axis of the main shaft. The execution component includes a flexible rod and a bud-scraping wire. The upper end of the flexible rod is connected to the lower end of the balance rod, and the lower end of the flexible rod is fixed to the bud-scraping wire.

[0006] Preferably, the axis of the balance bar is perpendicular to and coplanar with the axis of the main shaft; the upper end of the balance bar is provided with an external thread and is threadedly connected to the radial threaded hole of the main shaft; the upper end of the balance bar is also threaded with a fastening nut for locking and fixing the elongation of the balance bar.

[0007] Preferably, the flexible rod is detachably connected to the lower end of the balance bar, and the flexible rod has a swinging degree of freedom.

[0008] Preferably, a sealing plate is provided at the right end of the bearing housing, and the sealing plate presses against the outer ring of the bearing.

[0009] Preferably, the coupling clamps the motor output shaft and the main shaft together with locking screws to ensure stable coaxial power transmission.

[0010] Preferably, the curvature of the catenary curve of the bud-removing steel wire is adjusted by the motor speed, and the bud-removing position is controlled by the speed.

[0011] Preferably, the motor flange and fixing plate are used to detach and connect the device to a robot, robotic arm or handheld operating lever, adapting to automatic or manual bud removal operation modes.

[0012] This invention also discloses a method for using a jujube tree bud removal device, comprising the following steps: S1. Device installation and fixing: Fix the motor flange to the working base surface, complete the assembly of the motor, main shaft, bearing, balance bar, flexible bar and trowel wire, and connect the motor power supply line; S2. Adjusting the working posture: Fix the fixed plate to the working arm or the moving trolley, and adjust the posture of the device so that the bud-removing steel wire is parallel to the jujube tree branches to be bud-removed; S3. Power-on test run: Start the motor and check the rotation status of the main shaft, balance bar and trowel wire to confirm that there is no jamming or abnormal vibration; S4. Adjustment of operating parameters: Adjust the motor speed to the preset frequency, and adjust the tension of the flexible rod and the bud-removing wire so that the bud-removing wire gently contacts the tender buds of the jujube tree; S5. Continuous bud removal operation: The moving device moves along the branch of the jujube tree, and the high-speed rotating bud removal wire removes excess tender buds, completing the bud removal of the jujube tree.

[0013] Preferably, in S4, the curvature of the catenary curve of the bud-removing steel wire is changed by adjusting the motor speed, so as to accurately cut the jujube buds without damaging the jujube branches and lignified branches.

[0014] Therefore, the present invention, employing the above-mentioned jujube tree bud removal device and method, has the following technical effects: (1) This invention achieves rapid stripping of jujube buds by combining a flexible rod with a bud-removing wire and adjusting the curvature of the catenary curve by adjusting the rotation speed. The work efficiency is much higher than that of manual labor and traditional electric shears. At the same time, the cutting position is precisely controlled, without damaging the jujube branches and lignified branches, and the bud removal effect is good.

[0015] (2) The present invention adopts a threaded adjustable balance bar design, which can accurately calibrate the rotation center of gravity, eliminate eccentric vibration during high-speed operation, and ensure the stability and operation accuracy of the device.

[0016] (3) The present invention can be adapted to automated operation equipment such as robots and robotic arms through the fixed plate, and can also be connected to a handheld operating rod to realize manual operation, so as to meet the operation needs of orchards of different sizes.

[0017] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a jujube tree bud removal device according to the present invention; Figure 2 This is a schematic diagram of the use of the jujube tree bud removal device of the present invention.

[0019] Figure Labels 1. Fixing plate; 2. Cable; 3. Motor protective housing; 4. Motor; 5. Motor flange; 6. Coupling; 7. Bearing housing; 8. Bearing; 9. Sealing plate; 10. Balance bar; 11. Main shaft; 12. Flexible bar; 13. Wire stripping. Detailed Implementation

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figure 1As shown, a jujube tree bud removal device includes a protective fixing component, a power component, a balance adjustment component, and an operation component.

[0023] The protective fixing assembly includes a fixing plate 1, a motor protective shell 3, a motor flange 5, and a sealing plate 9, which are used to fix and install the various components of the device, provide sealing protection, and connect to external operating equipment. The fixing plate 1 serves as the basic mounting carrier for the device, forming a sealed cavity with the motor protective shell 3 and the motor flange 5, providing installation space for the power components. The motor protective shell 3 is made of a hard, wear-resistant material and covers the outside of the motor 4 to prevent dust, branches, and debris from entering the motor 4 during operation, thus protecting the motor 4 for stable operation. The motor flange 5 is a detachable connecting component used to fix the motor 4. The sealing plate 9 is assembled at the right end of the bearing seat 7, pressing against the outer ring of the bearing 8 to achieve dust and debris intrusion prevention and sealing protection for the bearing 8.

[0024] The power assembly includes a motor 4, a cable 2, a coupling 6, a main shaft 11, a bearing housing 7, and bearings 8, providing rotational power for the bud removal operation of the device. The motor 4 is installed in a sealed cavity enclosed by a fixed plate 1, a motor protective housing 3, and a motor flange 5, and is powered by an external cable 2. The output shaft of the motor 4 is coaxially locked to the main shaft 11 via the coupling 6. Specifically, the coupling 6 uses locking screws to secure the output shaft of the motor 4 to the main shaft 11, ensuring the coaxiality and stability of power transmission and preventing slippage and eccentric vibration during power transmission. The main shaft 11 is rotatably supported within the bearing housing 7 by bearings 8. The bearings 8 provide radial and axial rotational support for the device, reducing frictional resistance during the rotation of the main shaft 11 and ensuring high-speed, stable rotation of the main shaft 11.

[0025] The balance adjustment assembly includes a pair of symmetrically arranged balance bars 10, used to adjust the rotational center of gravity of the device and ensure stability during high-speed operation. The balance bars 10 are symmetrically arranged along the axis of the main shaft 11, with the axes of the balance bars 10 perpendicular to and coplanar with the axis of the main shaft 11. The upper end of each balance bar 10 has an external thread, forming a threaded connection with a radially opened threaded hole on the main shaft 11. The extension of the balance bar 10 can be adjusted radially along the main shaft 11. By adjusting the extension length of the balance bar 10, the rotational center of gravity of the device is precisely aligned with the axis of the main shaft 11, eliminating eccentric vibration during high-speed rotation. To fix the position of the adjusted balance bar 10, a fastening nut is also connected to the threaded section at the upper end of the balance bar 10. After adjusting to the preset extension, tightening the fastening nut locks the balance bar 10, preventing displacement during operation and ensuring center of gravity stability.

[0026] The execution components include a flexible rod 12 and a bud-removing wire 13, which are the core execution parts for bud removal. The upper end of the flexible rod 12 is detachably connected to the lower end of the balance rod 10; the lower end of the flexible rod 12 is fixedly connected to the bud-removing wire 13. Both the flexible rod 12 and the bud-removing wire 13 are flexible components. When the motor 4 drives the main shaft 11 to rotate at high speed, the flexible rod 12 bends and deforms under centrifugal force, and the bud-removing wire 13 forms a catenary curve. By adjusting the speed of the motor 4, the curvature of the catenary curve can be changed, thereby controlling the position of the bud removal operation and achieving precise removal of tender buds without damaging the jujube branches and lignified branches.

[0027] like Figure 2 As shown, a method of using a jujube tree bud removal device, based on the above-mentioned jujube tree bud removal device, includes the following steps: S1. Fix the motor flange 5 to the working base surface; then complete the assembly of the motor 4, main shaft 11, bearing 8, balance bar 10, flexible bar 12 and shaving wire 13, connect the power supply line of the motor 4, and complete the preliminary installation of the device.

[0028] S2. Fix the fixing plate 1 to the installation position of the working arm or the moving trolley, adjust the overall posture of the device, so that the bud-removing steel wire 13 in the rotating state is parallel to the jujube tree branches to be bud-removed, and ensure that the bud-removing steel wire 13 can accurately contact the branches and buds.

[0029] S3. Start motor 4 to make the main shaft 11 drive the balance bar 10, flexible bar 12 and bud-removing steel wire 13 to rotate at low speed. Check the rotation status of each component to confirm that there is no jamming or abnormal vibration. If there is a vibration problem, the elongation of the balance bar 10 can be finely adjusted and the fastening nut can be tightened until the device runs stably.

[0030] S4. Adjust the speed of motor 4 to the preset frequency according to the thickness of the jujube tree branches and the density of buds. Change the curvature of the catenary curve of the bud-removing steel wire 13 by changing the speed. At the same time, adjust the tension of the flexible rod 12 and the bud-removing steel wire 13 so that the bud-removing steel wire 13 can gently contact the tender jujube tree buds and avoid the steel wire from making hard contact with the branches.

[0031] S5. The device is slowly moved along the direction of the jujube tree branches. The high-speed rotating bud-removing wire 13 uses its own elasticity and centrifugal force to gently peel off the excess buds on the branches, completing the bud removal operation of a single branch. Repeat the above steps to complete the bud removal operation of the entire jujube tree and all jujube trees in the orchard.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A device for removing buds from jujube trees, characterized in that: Includes a mounting plate, power assembly, balance adjustment assembly, operation execution assembly, and protective fixing assembly; The protective fixing assembly includes a fixing plate, a motor protective shell, a motor flange, and a sealing plate; The power assembly includes a motor, cable, coupling, main shaft, bearing housing, and bearing; the motor is installed in the cavity surrounded by a fixed plate, motor protective shell, and motor flange; the motor is powered by a cable; the output shaft of the motor is coaxially locked to the main shaft via a coupling; the main shaft is rotatably supported in the bearing housing by the bearing. The balance adjustment assembly includes at least one pair of symmetrically arranged balance bars. The upper end of the balance bar is connected to the main shaft by a threaded connection. The balance bar can be adjusted radially along the main shaft to calibrate the center of gravity of rotation to the axis of the main shaft. The execution component includes a flexible rod and a bud-scraping wire. The upper end of the flexible rod is connected to the lower end of the balance rod, and the lower end of the flexible rod is fixed to the bud-scraping wire.

2. The jujube tree bud removal device according to claim 1, characterized in that: The axis of the balance bar is perpendicular to and coplanar with the axis of the main shaft; the upper end of the balance bar is provided with an external thread and is threadedly connected to the radial threaded hole of the main shaft; the upper end of the balance bar is also threaded with a fastening nut for locking and fixing the elongation of the balance bar.

3. The jujube tree bud removal device according to claim 1, characterized in that: The flexible rod is detachably connected to the lower end of the balance bar, and the flexible rod has a swinging degree of freedom.

4. The jujube tree bud removal device according to claim 1, characterized in that: A sealing plate is provided at the right end of the bearing housing, and the sealing plate presses against the outer ring of the bearing.

5. The jujube tree bud removal device according to claim 1, characterized in that: The coupling secures the motor output shaft to the main shaft with locking screws, ensuring stable coaxial power transmission.

6. The jujube tree bud removal device according to claim 1, characterized in that: The curvature of the catenary curve of the bud-removing steel wire is adjusted by the motor speed, and the bud-removing position is controlled by the speed.

7. The jujube tree bud removal device according to claim 1, characterized in that: The motor flange and fixing plate are used to detach and connect the device to a robot, robotic arm or handheld operating lever, adapting to automatic or manual bud removal operation modes.

8. A method of using a jujube tree bud removal execution device, based on the jujube tree bud removal execution device according to any one of claims 1-7, characterized in that, Includes the following steps: S1. Device installation and fixing: Fix the motor flange to the working base surface, complete the assembly of the motor, main shaft, bearing, balance bar, flexible bar and trowel wire, and connect the motor power supply line; S2. Adjusting the working posture: Fix the fixed plate to the working arm or the moving trolley, and adjust the posture of the device so that the bud-removing steel wire is parallel to the jujube tree branches to be bud-removed; S3. Power-on test run: Start the motor and check the rotation status of the main shaft, balance bar and trowel wire to confirm that there is no jamming or abnormal vibration; S4. Adjustment of operating parameters: Adjust the motor speed to the preset frequency, and adjust the tension of the flexible rod and the bud-removing wire so that the bud-removing wire gently contacts the tender buds of the jujube tree; S5. Continuous bud removal operation: The moving device moves along the branch of the jujube tree, and the high-speed rotating bud removal wire removes excess tender buds, completing the bud removal of the jujube tree.

9. The method of using the jujube tree bud removal device according to claim 8, characterized in that: In S4, the curvature of the catenary curve of the bud-removing steel wire is changed by adjusting the motor speed, so as to accurately cut the jujube buds without damaging the jujube branches and lignified branches.

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