A shaking device for a walnut harvesting device

Abstract

The utility model relates to a kind of vibration device of walnut harvesting device, the device is by installing gear, rack driving device in clamping plate, the position of vibration motor is moved to satisfy operation demand, compared with traditional fixed vibration head, the flexibility of operation is improved;And under the same clamping state, the beneficial effect of one clamping multiple vibration is also realized, and the harvesting efficiency is improved;At the same time, by the position of vibration motor is accurately adjusted according to vibration area and angle needs, fruit drop rate can also be improved;The device can not only vibrate the thick trunk, but also vibrate the smaller branch, which makes up for the defects of traditional fixed vibration head that cannot vibrate or over-vibrate, avoids damage to the tree, and the vibration point can be adjusted to realize batch collection by area, improve fruit quality consistency.The device can realize accurate vibration when harvesting walnuts, and improve the fruit harvesting rate.

Description

Technical Field

[0001] This utility model relates to the field of walnut harvesting technology, specifically to a shaking device for a walnut harvesting apparatus. Background Technology

[0002] Walnuts are an important woody oilseed and economic forest fruit in my country, a vital source of income for walnut growers, and have become a "golden fruit" for consolidating poverty alleviation achievements and contributing to rural revitalization. However, the low level of mechanization in the harvesting process, coupled with labor shortages and the increasing risk of fruit falling during operations, leads to delayed fruit drop, cracking of the green husk, and rancidity, resulting in significant losses. Shaking harvesting, as an internationally recognized high-efficiency and low-loss technology, significantly improves operational efficiency compared to manual labor, with a lower damage rate, and is crucial for ensuring farmers' income and enhancing the industry's competitiveness. Therefore, developing a suitable walnut shaking device is a key technological requirement for achieving cost reduction, efficiency improvement, and safe production.

[0003] Currently, there are several methods for harvesting walnuts: 1) Harvesting walnuts by manually beating them with bamboo poles, but this method has obvious drawbacks such as low efficiency and low fruit drop rate, and it is easy to damage branches and buds, leading to reduced yield in the following year; 2) Mechanical shaking is currently recognized as an efficient alternative, but the existing crank-connecting rod shaker driven by the output shaft of the tractor has a fixed output amplitude and frequency, resulting in the inability to shake tall trees and the easy breakage of short trees, resulting in a low harvesting rate and a high rate of bark peeling; moreover, the rigid clamping head has a fixed angle around the tree body, and when encountering irregular trees, the clamping slips, further aggravating the damage to the walnut tree's wood. 3) Frequency-adjustable hydraulic cylinder type shaking arm, which can adjust the frequency to adapt to the tree, partially solves the frequency mismatch problem, but the hydraulic cylinder is heavy, requiring a larger tractor, and it is not feasible to pass through small plots in mountainous areas.

[0004] The aforementioned technical devices have problems such as causing significant damage to the trees, affecting the lifespan of walnut trees and the yield of the following year; and inaccurate vibration leading to low efficiency and significant damage. In order to address these problems, there is an urgent need for a walnut harvesting shaking device that can achieve precise vibration of walnut trees, reduce tree damage, and achieve high efficiency. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a shaking device for a walnut harvesting apparatus. It includes a support rod and a slider slidably connected to the support rod. The slider is a cuboid structure with open slots on both the left and right sides. A rotating shaft is fixedly connected to the inner wall of the open slot. The rotating shaft is a cylindrical structure with both ends fixedly connected to the inner wall of the open slot and the outer end not in contact with the open slot. The outer end of the rotating shaft is rotatably connected to a lower pull rod, and the end of the lower pull rod away from the slider is rotatably connected to a small bolt; The outer end of the small bolt is rotatably connected to the upper tie rod. The upper tie rod has an open end near the small bolt. The lower tie rod and the upper tie rod are coaxially sleeved on the small bolt at the ends near the small bolt. The lower tie rod is located in the middle of the open end on the upper tie rod. The end of the upper tie rod away from the small bolt is coaxially sleeved on the large bolt with the upper end of the support rod. The upper end of the support rod is provided with open grooves on both sides, and the upper tie rod is located in the middle of the open grooves on both sides. A clamping plate is fixedly connected to one end of the upper tie rod near the large bolt; the clamping plate has an arc structure and a circular groove with a gear inside; a motor is fixedly connected to the gear and the gear is fixedly connected to the motor drive shaft. The outer end of the gear is meshed with a rack, and the shape of the rack is matched to the shape of the clamping plate. A support platform is fixedly connected to the outer end of the rack, a vibrating motor is fixedly connected to the support platform, an eccentric block is fixedly connected to the vibrating motor, and the eccentric block is fixedly connected to the power shaft of the vibrating motor. Both sides of the clamp are fixedly connected to baffles, and the shape of the baffles fits the shape of the clamp.

[0006] The lower tie rod, small bolt, upper tie rod, clamping plate, gear, rack, bearing platform, vibration motor, eccentric block, and baffle are all arranged symmetrically with the support rod as the axis.

[0007] A flexible pad is provided along the inner arc surface of the plywood, and the flexible pad is in contact with the tree trunk.

[0008] The clamps, racks, and baffles are all arc-shaped structures and have openings.

[0009] The motor fixedly connected to the gear is electrically connected to the controller, and the vibration motor is electrically connected to the controller.

[0010] Both the small bolt and the large bolt have nuts at both ends. One end of the small bolt and the large bolt has threads. The nut on the end of the small bolt and the large bolt away from the thread is for fixed connection, and the nut on the end closer to the thread is for threaded connection. The rest of the part is smooth.

[0011] The lower and upper tie rods are connected by the smooth part of the small bolt. The lower and upper tie rods can be brought closer together or moved away from each other, with the small bolt as the axis.

[0012] The upper tie rod is connected to the smooth part of the large bolt. Two symmetrical clamps fixedly connected to the upper tie rod are centered on the support rod and can move closer or further apart.

[0013] Compared with the prior art, this application has the following beneficial effects: By installing a gear and rack drive device inside the clamping plate, the position of the vibratory motor can be moved to meet the operational requirements, which improves the operational flexibility compared to the traditional fixed vibratory head. By precisely determining the vibration location and adjusting the position of the vibration motor according to the vibration area and angle, the fruit drop rate is improved. The vibration motor is moved by a gear and rack device, which can achieve the beneficial effect of "one clamp, multiple vibrations" under the same clamping state, thus improving harvesting efficiency. This device can vibrate both large tree trunks and smaller branches, overcoming the shortcomings of traditional fixed vibrating heads that either fail to vibrate or vibrate excessively, thus avoiding damage to the trees. The vibration point is adjustable, enabling batch and regional harvesting and improving the consistency of fruit quality.

[0014] The device is also suitable for space-constrained scenarios such as dwarf dense planting gardens, facility orchards, and potted fruit trees. Attached Figure Description

[0015] Figure 1 This is an isometric drawing for this application; Figure 2 This is a front view of this application; Figure 3 This is a top view of this application; Figure 4 This is an exploded view of the entire application; Figure 5 For the application Figure 3 Sectional view of AA; Figure 6 For the purposes of this application Figure 5 Enlarged view at B1; Figure 7 This is a partial exploded view of the application; Explanation of the labels in the diagram: 1. Support rod; 2. Slider; 3. Lower tie rod; 4. Small bolt; 5. Upper tie rod; 6. Large bolt; 7. Clamping plate; 8. Gear; 9. Rack; 10. Support platform; 11. Vibration motor; 12. Eccentric block; 13. Baffle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Example 1 like Figure 1-7As shown, this embodiment provides a vibrating device for a walnut harvesting apparatus. It includes a support rod 1, the length of which is adjustable. A slider 2 is slidably connected to the support rod 1, and the slider 2 can slide up and down on the support rod 1. A pull rope is connected to the slider 2; when the pull rope is pulled downwards, the slider 2 moves downwards; when the pull rope is released, the slider 2 moves upwards. The slider 2 is a cuboid structure, with open grooves on both its left and right sides. A rotating shaft is fixedly connected to the inner wall of each open groove. The rotating shaft is a cylindrical structure, with both ends fixedly connected to the inner wall of the open groove, and its outer end not contacting the open groove.

[0018] The lower pull rod 3 is rotatably connected to the outer end of the rotating shaft. When the slider 2 slides down, the lower pull rod 3 moves closer to the support rod 1. A small bolt 4 is rotatably connected to the end of the lower pull rod 3 away from the slider.

[0019] The outer end of the small bolt 4 is rotatably connected to the upper tie rod 5. The upper tie rod 5 has an open end near the small bolt 4. The lower tie rod 3 and the upper tie rod 5 are coaxially sleeved on the small bolt 4 at the end near the small bolt 4. The lower tie rod 3 is located in the middle of the open end on the upper tie rod 5.

[0020] Both ends of the small bolt 4 are connected to nuts. One end of the small bolt 4 is threaded. The nut on the end away from the thread is a fixed connection, while the nut on the end closer to the thread is a threaded connection. The upper tie rod 3 and the lower tie rod 5 can be disassembled and installed by rotating the nut connected by the thread. The rest of the small bolt 4 is smooth. The lower tie rod 3 and the upper tie rod 5 are rotatably connected to the smooth part of the small bolt 4. When the lower tie rod 3 moves towards the support rod 1, it also drives the upper tie rod 5 to move towards the support rod 1.

[0021] The end of the upper tie rod 5 away from the small bolt 4 is coaxially sleeved on the large bolt 6 with the upper end of the support rod 1. The upper end of the support rod 1 is provided with open grooves on both sides, and the upper tie rod 5 is located in the middle of the open grooves on both sides. Both ends of the large bolt 6 are connected to nuts. One end of the large bolt 6 has threads. The nut on the end of the large bolt 6 away from the thread is a fixed connection, while the nut on the end closer to the thread is a threaded connection. The rest of the bolt is smooth. The upper tie rod 5 is connected to the smooth part of the large bolt 6. A clamping plate 7 is fixedly connected to the end of the upper tie rod 5 near the large bolt 6. The clamping plate 7 has an arc structure and an opening.

[0022] The lower tie rod 3, small bolt 4, upper tie rod 5, and clamping plate 7 are all symmetrically arranged around the support rod 1. When the slider 2 moves downward, it causes the lower tie rod 3 and upper tie rod 5 to move closer to the support rod 1. During the process of the upper tie rod 5 moving closer to the support rod 1, it also causes the clamping plates 7 to move closer together, thereby achieving clamping of the target branch. A flexible pad is also provided along the inner arc surface of the clamping plate 7. When the clamping plate 7 clamps the branch, the flexible pad is in direct contact with the branch, avoiding damage to the tree during the clamping process.

[0023] The clamping plate 7 has a circular groove, and a gear 8 is installed in the circular groove. A motor is fixedly connected to the gear 8. The gear 8 is fixedly connected to the motor drive shaft. The motor is electrically connected to the controller. The motor is started by the controller, thereby driving the gear 8 to rotate.

[0024] The outer end of the gear 8 is meshed with a rack 9. The rack 9 is shaped to fit the shape of the clamp 7. It is an arc-shaped structure with an opening. When the gear 8 rotates under the drive of the motor, it drives the rack 9 to move. When the gear 8 rotates counterclockwise or clockwise, the rack 9 also moves in the corresponding direction along the circumference.

[0025] A support platform 10 is fixedly connected to the outer end of the rack 9. A vibration motor 11 is fixedly connected to the support platform 10. An eccentric block 12 is fixedly connected to the vibration motor 11, and the eccentric block 12 is fixedly connected to the power shaft of the vibration motor 11. Baffles 13 are fixedly connected to both sides of the clamping plate 7. The shape of the baffles 13 conforms to the shape of the clamping plate 7. They are arc-shaped structures with openings. The gear 8, rack 9, support platform 10, vibration motor 11, eccentric block 12, and baffles 13 are all symmetrically arranged about the support rod 1.

[0026] As the rack 9 moves, the support platform 10 on it moves circumferentially with the rack 9. By controlling the stroke of the rack 9, the vibration motor 11 is precisely moved to the required working position, thereby achieving the positioning of the vibration point. For example, when the clamp 7 is held on a horizontal branch of a walnut tree, if the dense area of ​​fruit on the horizontal branch is below the branch, the controller starts the motor to drive the gear 8 to rotate, which drives the rack 9 to move, allowing the vibration motor 11 to move towards the horizontal branch. By moving the vibration motor 11 to a position below the branch near the densest area of ​​fruit, the precise positioning of the vibration point can be achieved. The vibratory motor 11 is electrically connected to the controller. The controller starts the vibratory motor 11, and its internal rotor rotates at high speed. The eccentric block 12 is fixedly connected to the power output shaft of the vibratory motor 11 and rotates synchronously at high speed with the shaft. Since the center of mass of the eccentric block 12 is not on the axis of rotation, it will generate a periodic centrifugal inertial force when it rotates. The direction of this inertial force changes continuously with the rotation angle, forming an alternating excitation force that acts on the entire system. The excitation force is transmitted layer by layer to the clamping plate 7 and finally to the clamped branch, forming a vibration wave perpendicular to the branch, causing the branch to vibrate and causing the fruit to fall off.

[0027] Throughout the operation, clamp 7 is fixed to the desired location, which can be the trunk of the walnut tree or a branch. The controller then starts the motor, which drives the gear 8 to rotate, thereby moving the rack 9. As the rack 9 moves in a circle, the support platform 10 on it moves accordingly. Through precise movement, the vibration motor 11 is positioned as needed. The controller then activates the vibration motor 11, causing the branch to vibrate and the fruit to fall off. Depending on the tree shape and fruit distribution, the vibration motor 11 can be moved to the optimal vibration angle and position to initiate vibration. The energy is precisely applied to the target area. Furthermore, under the same clamping condition, the vibration motor 11 can be moved to multiple positions sequentially, achieving the beneficial effect of "one clamp, multiple vibrations." Precise vibration point positioning improves fruit removal efficiency, avoiding the shortcomings of traditional fixed vibration heads that either fail to vibrate or vibrate excessively, thus improving harvest quality.

[0028] In light of current practical needs, the above-described embodiments adopted in this application are not limited to this scope of protection. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A vibrating device for a walnut harvesting apparatus, characterized in that: Includes a support rod (1) and a slider (2) slidably connected to the support rod (1); The slider (2) is a cuboid structure. Open slots are provided on both the left and right sides of the slider (2). A rotating shaft is fixedly connected to the inner wall of the open slot. The rotating shaft is a cylindrical structure. Both ends of the rotating shaft are fixedly connected to the inner wall of the open slot, and the outer end does not contact the open slot. The outer end of the rotating shaft is rotatably connected to a lower pull rod (3), and the end of the lower pull rod (3) away from the slider (2) is rotatably connected to a small bolt (4). The outer end of the small bolt (4) is rotatably connected to an upper tie rod (5). The upper tie rod (5) has an open end near the small bolt (4). The lower tie rod (3) and the upper tie rod (5) are coaxially sleeved on the small bolt (4) at the ends near the small bolt (4). The lower tie rod (3) is located in the middle of the open end on the upper tie rod (5). The upper pull rod (5) is coaxially sleeved on the large bolt (6) at the end away from the small bolt (4) and the upper end of the support rod (1). The upper end of the support rod (1) is provided with open grooves on both sides, and the upper pull rod (5) is located in the middle of the open grooves on both sides. A clamping plate (7) is fixedly connected to one end of the upper pull rod (5) near the large bolt (6); the clamping plate (7) is an arc-shaped structure, and a circular groove is provided on the clamping plate (7), and a gear (8) is provided in the circular groove; a motor is fixedly connected to the gear (8), and the gear (8) is fixedly connected to the motor power shaft; The gear (8) is meshed with a rack (9) at its outer end, and the shape of the rack (9) fits the shape of the clamp (7). The outer end of the rack (9) is fixedly connected to a support platform (10), a vibration motor (11) is fixedly connected to the support platform (10), an eccentric block (12) is fixedly connected to the vibration motor (11), and the eccentric block (12) is fixedly connected to the power shaft of the vibration motor (11). Both sides of the clamp (7) are fixedly connected with baffles (13), and the shape of the baffles (13) fits the shape of the clamp (7).

2. The shaking device of a walnut harvesting apparatus according to claim 1, characterized in that: The lower tie rod (3), small bolt (4), upper tie rod (5), clamp (7), gear (8), rack (9), bearing platform (10), vibration motor (11), eccentric block (12), and baffle (13) are all arranged symmetrically about the support rod (1).

3. The shaking device of a walnut harvesting apparatus according to claim 1, characterized in that: A flexible pad is provided along the inner arc surface of the clamp (7), and the flexible pad is in contact with the tree trunk.

4. The shaking device of a walnut harvesting apparatus according to claim 1, characterized in that: The clamp (7), rack (9), and baffle (13) are all arc-shaped structures and have openings.

5. The shaking device of a walnut harvesting apparatus according to claim 1, characterized in that: The motor fixedly connected to the gear (8) is electrically connected to the controller, and the vibration motor (11) is electrically connected to the controller.

6. The shaking device of a walnut harvesting apparatus according to claim 1, characterized in that: Both ends of the small bolt (4) and the large bolt (6) are connected with nuts. One end of the small bolt (4) and the large bolt (6) has threads. The nuts on the ends of the small bolt (4) and the large bolt (6) away from the threads are fixed connections, and the nuts on the ends closer to the threads are threaded connections. The rest of the parts are smooth.

7. The shaking device of a walnut harvesting apparatus according to claim 1, characterized in that: The lower tie rod (3) and the upper tie rod (5) are connected to the smooth part of the small bolt (4). The lower tie rod (3) and the upper tie rod (5) are about the small bolt (4) as an axis and can move closer or further apart from each other.

8. The shaking device of a walnut harvesting apparatus according to claim 1, characterized in that: The upper tie rod (5) is connected to the smooth part of the large bolt (6), and the two symmetrical clamps (7) fixedly connected to the upper tie rod (5) are about the support rod (1) as the axis and can move closer or further apart.

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