Tree shaker with reduced tree damage

Abstract

The utility model relates to agricultural equipment technical field, concretely relates to a tree shaker that can reduce tree damage, it contains frame, is provided with speed reducer assembly in the frame, the power input shaft for connecting drive equipment is equipped with in the front of speed reducer assembly, the output shaft of speed reducer assembly bottom is connected with eccentric wheel drive component, the rear of frame is rotatably installed lever drive frame, the rear of eccentric wheel drive component is driven connecting rod transmission and is connected to the bottom end of lever drive frame, the top of lever drive frame is equipped with rotary joint disc, the rotary joint disc top installs the mount for connecting tree shaker rope, compared with traditional tree shaker, the frequency of shaking reduces, can prevent the harm that high frequency shaking causes to tree, is equipped with rotary joint disc, makes the mount of top can rotate, in the use process, the tree shaker is placed in the same position and can shake the tree of a plurality of trees in a certain angle range, and need not adjust the position of each tree.

Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment technology, specifically to a tree shaker that can reduce damage to trees. Background Technology

[0002] Fruit trees, especially those with a large yield, such as jujubes, loquats, walnuts, and chestnuts, are very difficult to harvest by hand. Traditionally, people use bamboo sticks to knock the branches or fruits off the trees. However, this method is not suitable for taller trees. Therefore, this year, an electrically powered tree shaker has been developed to shake the trees and cause the fruits to fall, making the work more efficient and convenient.

[0003] For example, Chinese utility model patent CN220674449U discloses a tree shaking machine, including a frame, an input shaft, an eccentric wheel, a transmission rod, and a rocker arm. The frame includes a main frame and a first and second upright connected above the main frame. The input shaft is horizontally mounted on the first upright via a bearing seat. One end of the input shaft extends outside the first upright and is connected to the power output shaft of a tractor. An eccentric wheel is mounted on the input shaft. The lower end of the transmission rod is hinged to the eccentric wheel, and the upper end of the transmission rod is hinged to a support. The end of the support away from the transmission rod is hinged to the rocker arm and the second upright. A rocker arm is mounted on the rocker arm and connected to a traction rope. This utility model uses the input shaft to drive the eccentric sleeve to rotate, causing the housing and the eccentric sleeve to rotate relative to each other. This, in turn, drives the transmission rod to move up and down, causing the support to swing. The rocker arm swings with the support, causing the rocker arm to swing at a constant amplitude, thus shaking the tree to harvest the fruit. The entire harvesting process requires no manual labor.

[0004] However, in this design, on the one hand, the tractor's output power is directly transmitted to drive the swinging mechanism to shake the tree. During the shaking process, the shaking frequency can be increased by accelerating the tractor. However, the tractor has a minimum idle speed, and even at idle, the resulting swinging frequency is not low. High-frequency shaking can easily damage some fruit trees. On the other hand, its output is a fixed back-and-forth swing. During use, the tree shaker must be facing the tree directly. Otherwise, during operation, the side of the swing arm is prone to excessive local pressure due to lateral force, causing equipment damage. After operating on one tree, its position must be adjusted before operating on the next tree, making the operation cumbersome. Utility Model Content

[0005] The purpose of this utility model is to provide a tree shaker with a reasonable design that can reduce damage to trees, addressing the defects and shortcomings of the existing technology, and thus solving the aforementioned defects.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: It includes a frame, a reducer assembly is installed inside the frame, a power input shaft for connecting the drive equipment is provided at the front end of the reducer assembly, an eccentric wheel drive assembly is connected to the output shaft at the bottom of the reducer assembly, a lever drive frame is rotatably installed at the rear of the frame, the eccentric wheel drive assembly is connected to the bottom end of the lever drive frame via a drive linkage, a rotating connecting plate is provided at the top of the lever drive frame, and an installation frame for connecting tree shaking ropes is installed above the rotating connecting plate.

[0007] Preferably, a connecting shaft is provided on the inner side of the bottom end of the lever drive frame, and a spherical bearing is connected to the rear end of the drive link and connected to the connecting shaft through the spherical bearing.

[0008] Preferably, the mounting bracket has holes, and a movable pin is inserted into the holes.

[0009] Preferably, a limiting hole is provided at the front end of the movable pin, and a dovetail pin is inserted into the limiting hole.

[0010] Preferably, the distance between the pivot shaft connecting the lever drive frame and the frame and the movable pin is greater than the distance between the pivot shaft and the connecting shaft below.

[0011] Preferably, a connecting frame is mounted on top of the frame, and connecting parts for connecting drive equipment are fixed at the middle of the front end of the connecting frame and at both sides of the front end of the frame.

[0012] The beneficial effects of this utility model after adopting the above structure are: 1. In this utility model, the power input is reduced by a reducer before being output to shake the tree. Compared with the direct power connection of traditional tree shaking machines, the shaking frequency is reduced, which can prevent damage to the tree from excessively high frequency shaking.

[0013] 2. In this utility model, since the rotating shaft of the lever drive frame is located in the lower part of the middle, under the action of the lever, the swing amplitude of the upper end of the lever drive frame is greater than that of the lower end, ensuring that the swing amplitude of the tree is sufficient. In addition, the joint bearing can swing at a certain angle during this process, ensuring stable transmission.

[0014] 3. This utility model is equipped with a rotating connecting plate, so the mounting frame above can rotate. Therefore, the tree shaking machine does not need to be installed facing the trees. So during use, it can be placed in the same position to shake multiple trees within a certain angle range without adjusting the position of each tree. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front structure of this utility model; Figure 2 This is a schematic diagram of the rear structure of this utility model; Figure 3 This is a schematic diagram of the bottom side structure of this utility model; Figure 4 This is a partial left view of the mounting bracket in this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Frame; 2. Connector; 3. Connecting frame; 4. Reducer assembly; 5. Power input shaft; 6. Eccentric wheel drive assembly; 7. Drive linkage; 8. Spherical bearing; 9. Lever drive frame; 10. Rotary connecting plate; 11. Mounting bracket; 12. Movable pin; 13. Dovetail pin. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] See Figures 1-4 As shown, it includes a frame 1, with a connecting frame 3 mounted on top of the frame 1. Connecting parts 2 for connecting a drive device, i.e., a tractor, are fixed at the front center of the connecting frame 3 and at both sides of the front of the frame 1. A reducer assembly 4 is installed inside the frame 1. A power input shaft 5 for connecting the drive device is located at the front of the reducer assembly 4. An eccentric wheel drive assembly 6 is connected to the output shaft at the bottom of the reducer assembly 4. A lever drive frame 9 is rotatably mounted at the rear of the frame 1. The rear of the eccentric wheel drive assembly 6 is connected to the bottom of the lever drive frame 9 via a drive linkage 7. A rotating connecting plate 10 is located at the top of the lever drive frame 9. An installation frame 11 for connecting a tree-shaking rope is mounted above the rotating connecting plate 10. A connecting shaft is provided on the inner side of the bottom end of the lever drive frame 9, and a spherical bearing 8 is connected to the rear end of the drive link 7 and connected to the connecting shaft through the spherical bearing 8. The mounting bracket 11 has holes, and a movable pin 12 is inserted into the holes. A limit hole is opened at the front end of the movable pin 12, and a dovetail pin 13 is inserted into the limit hole. The distance between the lever drive frame 9 and the pivot connecting the frame 1 and the movable pin 12 is greater than the distance between the pivot and the connecting shaft below.

[0019] The principle and usage process of this utility model: First, place the tree shaker in the designated location. Then, drive the tractor in front of it and connect the tractor's rear output shaft to the power input shaft 5. Install ropes on the trees to be shaken and connect them to the movable pin 12. Start the tractor's rear output shaft; power is sent to the reducer assembly 4 through the power input shaft 5. After reduction, the eccentric wheel rotates, which in turn drives the joint bearing 8 via the drive linkage 7. This causes the bottom of the lever drive frame 9 to swing back and forth, and the top of the lever drive frame 9 to swing back and forth, thus initiating the tree shaking operation with the ropes. Because the power is reduced by the reducer, the shaking frequency is lower compared to the direct-drive method of traditional equipment, preventing excessively high-frequency shaking. The movement does not cause damage to the trees; however, since the pivot of the lever drive frame 9 is not in the middle, under the action of the lever, the swing amplitude of the upper end of the lever drive frame 9 is greater than that of the lower end, ensuring that the shaking amplitude is sufficient. During this process, the joint bearing 8 can swing at a certain angle to ensure transmission stability. Since there is a rotating connecting plate 10 above, the mounting frame 11 above can also rotate. Even if the connected rope is not directly facing the tree shaker, the mounting frame 11 can automatically rotate to ensure accurate direction. Therefore, the tree shaker does not need to be installed facing the trees completely. During use, it can be placed in the same position to shake multiple trees within a certain angle range without adjusting the position of each tree. It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A tree shaker that reduces damage to trees, comprising a frame (1), characterized in that: The frame (1) is equipped with a reducer assembly (4). The front end of the reducer assembly (4) is equipped with a power input shaft (5) for connecting the drive equipment. The output shaft at the bottom of the reducer assembly (4) is connected to an eccentric wheel drive assembly (6). A lever drive frame (9) is rotatably mounted at the rear of the frame (1). The rear of the eccentric wheel drive assembly (6) is connected to the bottom end of the lever drive frame (9) via a drive linkage (7). A rotating connecting plate (10) is provided at the top of the lever drive frame (9). An installation frame (11) for connecting the tree shaking rope is installed above the rotating connecting plate (10).

2. A tree shaker that reduces tree damage according to claim 1, characterized in that: The lever drive frame (9) has a connecting shaft on the inner side of its bottom end. The rear end of the drive link (7) is connected to a spherical bearing (8) and is connected to the connecting shaft through the spherical bearing (8).

3. A tree shaker that reduces tree damage according to claim 1, characterized in that: The mounting bracket (11) has holes, and a movable pin (12) is inserted into the holes.

4. A tree shaker that reduces tree damage according to claim 3, characterized in that: A limiting hole is opened at the front end of the movable pin (12), and a dovetail pin (13) is inserted into the limiting hole.

5. A tree shaker that reduces tree damage according to claim 2, characterized in that: The distance between the lever drive frame (9) and the frame (1) is greater than the distance between the lever drive frame (9) and the movable pin (12).

6. A tree shaker that reduces tree damage according to claim 1, characterized in that: A connecting frame (3) is mounted on top of the frame (1). Connecting parts (2) for connecting drive equipment are fixed at the middle of the front end of the connecting frame (3) and at both sides of the front end of the frame (1).

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