tree shaker

Abstract

The utility model relates to agricultural machinery technical field, concretely is a kind of tree shaker, for the harvesting operation of fruit tree fruit, shake fruit tree trunk by mechanical mode to realize efficient, safe fruit drop, a kind of tree shaker, including frame, the frame lower part is arranged with multiple machine feet, the frame inside is provided with power conversion mechanism, the power conversion mechanism is connected with the traction assembly for pulling trunk;Its characterized in that, the machine foot is arranged vertically downward and bottom end is equipped with the acute angle shaped foot root projecting downward, the cross brace for limiting the depth of machine foot into soil is equipped between adjacent machine feet;The power conversion mechanism includes right-angle commutator, the right-angle commutator has horizontally arranged input shaft and vertically arranged output shaft, the end of output shaft is fixed with horizontally arranged disc, eccentric sleeve is provided on the disc, the sleeve is connected with disc and realizes horizontal rotation by bearing;The traction assembly includes the swing fork obliquely arranged above disc.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically a tree shaker used for harvesting fruit from fruit trees. It achieves efficient and safe fruit removal by mechanically shaking the trunk of the fruit tree. Background Technology

[0002] In fruit tree harvesting, tree shakers are common mechanical devices. They use a power source to drive a shaking mechanism, which pulls the tree trunk to create a swaying motion, causing the fruit to fall. Existing tree shakers typically include a frame, a power transmission mechanism, and a traction component, but they suffer from the following problems and drawbacks in practical applications: 1. Poor frame stability and prone to displacement: Existing tree shaking machines have simple frame support structures and lack optimized foot design, often using flat-bottomed or obtuse-angled feet, making it difficult to effectively insert them into the soil. Furthermore, they are prone to slipping or shifting under motor vibration. This not only affects the uniformity of the shaking effect but may also damage the fruit tree root system and even endanger the safety of operators.

[0003] 2. Inconvenient direction adjustment and low work efficiency: The shaking mechanism (such as the swing arm or hook) of existing tree shaking machines is mostly fixed and cannot be flexibly adjusted in space. When it is necessary to work on adjacent but different fruit trees, the entire frame must be moved frequently for repositioning and fixing, which is cumbersome and time-consuming, greatly reducing work efficiency.

[0004] The aforementioned problems have limited the widespread application and performance improvement of tree shakers. Therefore, there is an urgent need for a tree shaker design that is more structurally stable and more flexible in adjustment. Utility Model Content

[0005] In order to overcome the problems of easy displacement, poor stability, and low work efficiency caused by inconvenient adjustment of traction direction in the existing tree shaking machine, this utility model provides a tree shaking machine. By optimizing the machine feet and cross brace structure and adopting a steerable swing fork 10 design, the frame can be stabilized and the traction direction can be quickly adjusted, thereby improving work efficiency and safety.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: a tree shaking machine, including a frame, with multiple machine feet arranged at the lower part of the frame, and a power conversion mechanism installed inside the frame, the power conversion mechanism being connected to a traction component for pulling the tree trunk; characterized in that the machine feet are arranged vertically downward and have acute-angled foot roots protruding downward at the bottom, and a cross brace is provided between adjacent machine feet to limit the depth of the machine feet entering the soil; the power conversion mechanism includes a right-angle commutator, the right-angle commutator having a horizontally arranged input shaft and a vertically arranged output shaft, the end of the output shaft being fixed to a horizontally arranged disc, a sleeve being eccentrically arranged on the disc, the sleeve being horizontally rotatably connected to the disc through a bearing; the traction component includes a swing fork 10 inclinedly arranged above the disc, the swing fork 10 being fixed to the axial outer side of the sleeve, and the surface of the swing fork 10 having a through hole for connecting the traction component.

[0007] The aforementioned tree-shaking machine has four machine feet, which are arranged at certain intervals around the lower part of the frame.

[0008] In the aforementioned tree-shaking machine, the horizontal brace is arranged horizontally, and its two ends are welded to the adjacent machine feet respectively.

[0009] In the aforementioned tree shaking machine, the tilt angle of the swing fork 10 relative to the upper surface of the disc is 15-25°.

[0010] In the aforementioned tree shaking machine, the traction component is a steel wire rope. One end of the steel wire rope is connected to the swing fork 10 through the through hole and the rope clamp, and the other end is used to wrap around the trunk of the fruit tree.

[0011] In the aforementioned tree shaking machine, a base plate is horizontally arranged below the right-angle commutator on its rear side. The base plate is connected to the right-angle commutator by bolts, and the rear part of the base plate is welded to the frame.

[0012] The aforementioned tree shaking machine has an arc-shaped notch at the end of its base plate.

[0013] In the aforementioned tree shaking machine, support arms are symmetrically arranged on both sides of the input shaft of the right-angle commutator. One end of each support arm is connected to the side wall of the right-angle commutator by bolts, and the other end is welded and fixed to the upper part of the frame.

[0014] In the aforementioned tree shaking machine, a support rod is horizontally arranged below the support arm, and the lower surfaces of both ends of the support rod are welded to the frame.

[0015] The beneficial effects of this utility model are: 1. Improved overall equipment stability: By setting the feet with acute-angled heels and combining them with cross braces that limit the depth of soil penetration, the frame can be firmly embedded in the soil during operation, effectively resisting displacement and shift caused by motor vibration, and ensuring operational safety.

[0016] 2. Enables rapid and flexible adjustment of working direction: By setting the swing fork 10 on a horizontally rotatable sleeve, when it is necessary to change the traction direction, there is no need to move the bulky frame as a whole. Simply rotate the sleeve to align the swing fork 10 with the target fruit tree, which greatly saves adjustment time and improves work efficiency.

[0017] 3. Improved stability and reliability of power transmission: By reinforcing the right-angle commutator with support arms and auxiliary cross braces, its load-bearing capacity is significantly enhanced, the amplitude during operation is reduced, thereby improving the smoothness of power transmission and extending the service life of key components.

[0018] 4. It balances structural strength and ease of maintenance: The welded connection between the base plate and the frame provides a stable installation foundation, while the arc-shaped notch at the end of the base plate provides convenient space for inspection and oil change operations at the bottom of the commutator, achieving a balance between robust structure and convenient maintenance. Attached Figure Description

[0019] The present invention will be further described below with reference to the embodiments and examples.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment.

[0021] Figure 2 This is a schematic diagram of the input shaft structure for an embodiment.

[0022] Figure 3 This is a schematic diagram of the base plate and notch structure in an embodiment.

[0023] In the diagram: 1. Frame; 2. Foot; 3. Foot root; 4. Cross brace; 5. Commutator; 6. Input shaft; 7. Output shaft; 8. Disc; 9. Sleeve; 10. Through hole; 11. Base plate; 12. Notch; 13. Support arm; 14. Support rod. Detailed Implementation

[0024] This embodiment describes in detail a tree-shaking machine, such as... Figure 1As shown, the frame 1 of the tree shaker is constructed by welding together multiple metal pipes to form a stable frame structure. The lower part of the frame 1 is arranged with feet 2 at regular intervals around its perimeter. The feet 2 are firmly connected to the frame 1 by welding and are arranged vertically downwards. The bottom of each foot 2 has a downward-protruding acute-angled foot root 3. The angle of the acute-angled foot root 3 is optimized to ensure smooth insertion into the soil during operation, effectively improving the stability of the frame 1 during tree shaker operation. This design prevents the frame 1 from shifting due to motor vibration, thus protecting the fruit trees and the safety of surrounding workers. A horizontal brace 4 is placed between adjacent feet 2, with both ends of the brace 4 welded to adjacent feet 2. This not only enhances the connection strength between the feet 2 but also limits the depth of insertion. When the foot 2 reaches the position of the brace 4, the horizontally arranged brace 4 generates a reaction force with the soil, effectively preventing the foot 2 from penetrating too deeply into the soil. This ensures that the components of the tree shaker can operate normally and avoids movement interference with the soil.

[0025] Inside the frame 1, a right-angle commutator 5 is horizontally arranged. The commutator 5 has an input shaft 6 and an output shaft 7, both of which are splined structures for easy power transmission. The input shaft 6 is horizontally arranged, and its free end is used to connect to an external power source (such as a motor or engine) to receive power input. The output shaft 7 is vertically arranged, and its free end is fixed to a horizontally arranged disc 8 by a key connection. A vertically upward sleeve 9 is eccentrically arranged on the upper part of the disc 8. The sleeve 9 and the disc 8 are connected to rotate horizontally through a bearing. This design allows the sleeve 9 to both revolve with the disc 8 and rotate on its own axis with the help of the bearing. A swing fork 10 is arranged at intervals on the outer side of the sleeve 9. The swing fork 10 is inclined relative to the upper surface of the disc 8, and the inclination angle is set to 15-25° to optimize the tree shaking effect.

[0026] The surface of the swing fork 10 has multiple through holes spaced apart. These through holes are used to connect multiple steel wire ropes. The other end of the steel wire ropes is connected to the trunk of the fruit tree. When the external power source drives the input shaft 6 to rotate, the output shaft 7 drives the disc 8 to rotate through the conversion of the right angle commutator 5, which in turn drives the swing fork 10 to perform a horizontal circumferential displacement movement. The movement of the swing fork 10 pulls the trunk of the fruit tree through the steel wire ropes to realize the shaking and picking operation.

[0027] To ensure the commutator 5 is stably positioned on the upper part of the frame 1, a base plate 11 is horizontally arranged on the lower rear side of the commutator 5. The base plate 11 is connected to the commutator 5 by bolts, and the rear part of the base plate 11 is welded to the frame 1 to ensure the stability of the overall structure. An arc-shaped notch 12 is provided at the end of the base plate 11. This design facilitates inspection and oil change operations at the bottom of the commutator 5, improving the maintenance convenience of the equipment.

[0028] Considering the large amplitude of the commutator 5 during operation, in order to prevent the base plate 11 from failing and falling off, support arms 13 are symmetrically arranged on both sides of the input shaft 6 of the commutator 5. The support arms 13 are connected to the side wall of the commutator 5 by bolts, and the other end is welded and fixed to the upper part of the frame 1. Since the span of the support arms 13 is large, in order to improve its load-bearing strength, support rods 14 are arranged in the horizontal direction below the support arms 13. The lower surfaces of both ends of the support rods 14 are welded to the frame 1 to form a stable support structure.

[0029] In actual use, the rotational characteristic of the sleeve 9 brings great convenience to the operation. Since the sleeve 9 can both revolve with the disc 8 and rotate on its own with the help of the bearing, when shaking fruit trees in similar but different positions, it is only necessary to rotate the sleeve 9 to make the swing fork 10 face a specific spatial angle. This design eliminates the need to move the frame 1, greatly saving the time of moving and rearranging the frame 1 and improving work efficiency.

[0030] Operating Procedure: First, move the tree shaker to the fruit tree to be worked on, ensuring the working area is relatively flat and free of obvious obstacles. Slowly push the tree shaker so that the feet 2 at the bottom of the frame 1 are aligned with the soil around the fruit tree. Press down on the frame 1 forcefully, allowing the acute-angled heels 3 at the bottom of the feet 2 to penetrate into the soil until the cross braces 4 on the feet 2 contact the soil surface. At this point, the feet 2 have reached the appropriate depth of penetration, and the frame 1 has obtained stable support, effectively resisting the external forces generated by motor vibration during subsequent operations and preventing the frame 1 from shifting position. Next, select a suitable external power source, such as a motor or engine, according to the site conditions. If using a motor, connect the output shaft 7 of the motor to the input shaft 6 of the right-angle commutator 5 using a coupling or other suitable connector, ensuring a firm connection and stable power transmission. During the connection process, pay attention to aligning the center line of the shaft to avoid eccentricity, which could affect the normal operation and service life of the commutator 5. If using an engine, connect the power source in the same way.

[0031] Then, select a steel wire rope of appropriate length and strength, pass one end of the steel wire rope through the through hole on the surface of the swing fork 10, and secure it firmly using a rope clip or other reliable connection method to prevent the steel wire rope from falling off during the tree shaking process. Wrap the other end of the steel wire rope around the trunk of the fruit tree. The number of wrapping turns is adjusted according to the thickness of the trunk and the required shaking force, generally 2-3 turns, to ensure sufficient friction between the steel wire rope and the trunk, so as to stably pull the trunk. For trunks of different thicknesses, steel wire ropes of different specifications can be selected to ensure the safety and reliability of the connection. If it is necessary to shake the fruit tree in different positions, and the current orientation of the swing fork 10 is not suitable, the spatial angle of the swing fork 10 can be adjusted by rotating the sleeve 9. Gently rotate the sleeve 9 by hand. Since the sleeve 9 is connected to the disc 8 through a bearing, it can be rotated flexibly to adjust the swing fork 10 to face the target fruit tree trunk, so that the steel wire rope can more effectively pull the trunk and improve the tree shaking effect.

[0032] After completing the above preparations, check that all connections are secure and that the equipment is stable. Once confirmed, start the external power source; the motor or engine will begin running, transmitting power through the input shaft 6 to the right-angle commutator 5. The right-angle commutator 5 converts the horizontal power into vertical power, which drives the disc 8 to rotate via the output shaft 7. During the rotation of the disc 8, the eccentrically arranged sleeve 9 drives the swing fork 10 to perform a horizontal circumferential displacement movement. The swing fork 10 pulls the trunk of the fruit tree through a steel wire rope, causing the trunk to sway, thereby achieving the purpose of fruit drop. During the tree shaking operation, the operator must closely observe the equipment. Observe the operating status of the equipment and the reaction of the fruit trees. Pay attention to whether the frame 1 is stable and whether there is any abnormal vibration or displacement. Check whether the connection of the wire rope is firm and whether there are any signs of loosening or breakage. Observe the swaying of the fruit trees to ensure that the shaking force is moderate and avoid damage to the fruit trees. If any abnormality is found, the operation should be stopped immediately for inspection and adjustment. For example, if the frame 1 is slightly displaced, the soil penetration depth of the machine feet 2 can be readjusted or the support of the frame 1 can be reinforced. If the wire rope is loose, it should be tightened in time. If the shaking force is too large or too small, it can be adjusted by adjusting the speed of the external power source or by replacing the wire rope with one of different specifications.

[0033] After completing the shaking operation on one fruit tree, first stop the operation of the external power source. After the equipment has completely stopped rotating, unwrap the steel wire rope wrapped around the trunk and remove the steel wire rope from the through hole of the swing fork 10. Move the tree shaker to the next fruit tree to be shaken, and reposition, connect, and adjust it according to the above steps to continue the shaking operation. After all the operations are completed, clean the tree shaker, remove dust, dirt, and debris from the surface of the equipment, and check whether any parts are damaged or worn. If necessary, repair or replace them in time for the next use.

[0034] The above embodiments are merely descriptions of one specific implementation of the tree shaking machine. Those skilled in the art can adjust and optimize the dimensions of the frame 1, the number of machine feet 2, the tilt angle of the swing fork 10, and the specific structure of the sleeve 9 and the swing fork 10 according to actual needs, so as to adapt to the tree shaking needs in different scenarios.

Claims

1. A tree-shaking machine, characterized in that: The device includes a frame with multiple feet arranged at the bottom. A power conversion mechanism is installed inside the frame, connected to a traction component for pulling a tree trunk. The feet are characterized by being vertically downward-facing with acute-angled heels protruding downwards at their bottom ends, and horizontal supports between adjacent feet to limit their depth in the soil. The power conversion mechanism includes a right-angle commutator with a horizontally arranged input shaft and a vertically arranged output shaft. A horizontally arranged disc is fixed to the end of the output shaft, and a sleeve is eccentrically mounted on the disc, the sleeve being horizontally rotatably connected to the disc via a bearing. The traction component includes a swing fork inclined above the disc, fixed axially to the outside of the sleeve, and having through holes on its surface for connecting traction components.

2. The tree shaking machine according to claim 1, characterized in that: The machine feet are four in number and are arranged at certain intervals around the lower part of the frame.

3. The tree shaking machine according to claim 1, characterized in that: The horizontal brace is arranged horizontally, and its two ends are welded to the adjacent machine feet respectively.

4. The tree shaking machine according to claim 1, characterized in that: The tilt angle of the swing fork relative to the upper surface of the disc is 15-25°.

5. The tree shaking machine according to claim 1, characterized in that: The traction component is a steel wire rope. One end of the steel wire rope is connected to the swing fork through the through hole and the rope clamp, and the other end is used to wrap around the trunk of the fruit tree.

6. The tree shaking machine according to claim 1, characterized in that: A base plate is horizontally arranged below the rear side of the right-angle commutator. The base plate is connected to the right-angle commutator by bolts, and the rear part of the base plate is welded to the frame.

7. The tree shaking machine according to claim 6, characterized in that: The bottom plate has an arc-shaped notch at its end.

8. The tree shaking machine according to claim 1, characterized in that: The input shaft of the right-angle commutator is symmetrically arranged with support arms on both sides. One end of the support arm is connected to the side wall of the right-angle commutator by bolts, and the other end is welded and fixed to the upper part of the frame.

9. The tree shaking machine according to claim 8, characterized in that: A support rod is horizontally arranged below the support arm, and the lower surfaces of both ends of the support rod are welded to the frame.

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