Jujube shaking machine

Abstract

A jujube shaking machine comprises a 26cc power machine used for providing power; the clutch cup is arranged above the 26cc power machine; the concentric shaft is detachably connected to the clutch cup; the carbon fiber tube is detachably connected to the concentric shaft and arranged on the outer side of the concentric shaft; the middle shaft joint is detachably connected with the top surface of the concentric shaft; the bending shaft is arranged at the top of the middle shaft joint; the inner pipe is arranged on the outer side of the middle shaft connector and connected with the top of the carbon fiber pipe; the top pipe is arranged on the side wall above the bending shaft, and a picking hook is arranged above the top pipe; the outer spring is connected with the top surface of the inner pipe and the bottom surface of the top pipe. According to the device, the 26cc power machine can be adopted to drive the picking hook to shake left and right, power is improved compared with lithium battery type power, oil consumption and noise are smaller compared with traditional fuel oil type power, and the applicable branch thickness range is wider.

Description

Technical Field

[0001] This utility model relates to the field of jujube harvesting technology, and more specifically, to a jujube shaking machine. Background Technology

[0002] The jujube shaking machine shakes the branches to make the jujubes fall off the branches, thus achieving the purpose of harvesting.

[0003] Traditional jujube shakers come in electric, lithium-ion battery, and fuel-powered types. Electric shakers use a modified electric hammer to move the picking hook up and down, vibrating the branches. Disadvantages include susceptibility to breakage, the unsafety of 220V power cords crisscrossing the mountainside, and the need for a generator in areas without electricity, making them inconvenient to carry. Lithium-ion battery shakers require carrying the battery on your back, increasing the risk of snagging on power lines while climbing trees; their maximum speed is only 8,000 RPM, limiting the shaking range to a mere 1.5cm; and the weight of lithium-ion batteries is significant—a 12A battery weighs nearly 5kg, and a 24A battery weighs nearly 7kg. The fuel-powered type has a gearbox with an eccentric shaft inside that drives the picking hook to swing up and down. The gearbox is made of raw aluminum, which is easily damaged by impacts with thick branches. It usually uses a 32cc or 34cc two-stroke engine, and the total weight with fuel is close to 7kg. The eccentric shaft transmission efficiency is low, and it takes the maximum throttle to make a 3-4cm swing, which produces a lot of noise. It takes 15kg of force to press down to make the swinging motion effective, which is quite strenuous. The swinging motion can easily break small branches less than 5mm in diameter. Fuel consumption is also relatively high, averaging 4 liters of fuel per day. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a jujube shaking machine that uses a 26cc motor to drive the picking hook to swing left and right. It has higher power than lithium battery type and lower fuel consumption and noise compared to traditional fuel type, and is applicable to a wider range of tree branch thicknesses.

[0005] A jujube-shaking machine includes: a 26cc power unit for providing power; a clutch cup disposed above the 26cc power unit; a concentric shaft detachably connected to the clutch cup; a carbon fiber tube detachably connected to the concentric shaft, the carbon fiber tube being disposed on the outside of the concentric shaft; a central shaft connector detachably connected to the top surface of the concentric shaft; a curved shaft disposed on the top of the central shaft connector; an inner tube disposed on the outside of the central shaft connector, the inner tube being connected to the top of the carbon fiber tube; a top tube disposed on the side wall above the curved shaft, the top of the top tube having a picking hook; and an outer spring connecting the top surface of the inner tube and the bottom surface of the top tube.

[0006] Furthermore, the 26cc engine is equipped with an oil tank at the bottom, and the 26cc engine is electrically connected to a control switch and a throttle button, which are slidably connected to the carbon fiber tube.

[0007] Furthermore, the top of the clutch cup is provided with a first clamp, which clamps the bottom of the carbon fiber tube.

[0008] Furthermore, the top and bottom ends of the concentric shaft are provided with key teeth, the clutch cup and the central shaft joint are provided with keyways, the bottom of the concentric shaft is located in the clutch cup, and the top of the concentric shaft is located in the central shaft joint.

[0009] Furthermore, the top of the central shaft joint is provided with a central shaft, the top and bottom of the central shaft are provided with first bearings, and a wear-resistant rubber pad is provided between the two first bearings.

[0010] Furthermore, the bending shaft is located at the top of the central shaft, and the angle between the axis of the bending shaft and the axis of the central shaft is between 3 and 3.5 degrees.

[0011] Furthermore, the upper sidewall of the bending shaft is provided with two second bearings, and there is a gap between the two second bearings. A wear-resistant rubber pad is also provided at the gap.

[0012] Furthermore, the top surface of the inner tube is at the same height as the first bearing on the top surface of the central shaft, the bottom surface of the inner tube is sleeved on the top of the carbon fiber tube, and the inner tube and the carbon fiber tube are connected by a second clamp.

[0013] Furthermore, the bottom of the top tube is at the same height as the second bearing below it.

[0014] Furthermore, the outer spring is provided with connecting sleeves at both the top and bottom. The upper connecting sleeve is connected to the bottom of the top tube by screws, and the lower connecting sleeve is connected to the top of the inner tube by screws.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] ① This device uses a 26cc two-stroke motor, eliminating the gearbox of a traditional internal combustion engine. Combined with an external spring, it achieves a left-right vibration effect, capable of shaking small tree branches up to 5mm without breaking them. The 26cc motor's maximum speed exceeds the lithium-ion motor's maximum speed of 8,000 RPM, allowing it to shake branches up to 5cm in diameter, making it widely applicable. The 26cc motor itself weighs 2.9kg, and the remaining components add up to approximately 1kg, for a total weight of about 4kg. This is 2kg lighter than existing 32cc and 34cc motors, which, along with the gearbox and other components, weigh 6kg. Using the 26cc motor also reduces fuel consumption, keeping daily fuel consumption below 2 liters under normal operating conditions.

[0017] ② The throttle button is used to adjust the speed of the 26cc motor. The force required to press the throttle varies depending on the diameter of the branch being shaken, thus adjusting the force of shaking the branch. When shaking thin branches, the speed is lower, reducing noise.

[0018] ③ The concentric shaft transmits power upward to the central shaft joint and the bending shaft. Compared with eccentric rotation, the speed of coaxial transmission is faster and the working efficiency is higher.

[0019] ④ The fuel tank is directly connected to the 26cc motor, making it easy to carry, and there will be no long power cord getting caught on tree branches when climbing trees. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a date-sharing machine.

[0022] Figure 2 This is a cross-sectional view of a date-sharing machine.

[0023] Figure 3 This is a schematic diagram of a concentric shaft in a date shaker.

[0024] Figure 4 This is a schematic diagram of the central shaft joint and the bending shaft in a date shaking machine.

[0025] In the diagram: 1. 26cc engine; 11. Fuel tank; 12. Control switch; 13. Throttle button; 2. Clutch cup; 21. First clamp; 3. Concentric shaft; 31. Key tooth; 4. Carbon fiber tube; 5. Bottom shaft connector; 51. Central shaft; 511. First bearing; 512. Wear-resistant rubber pad; 6. Bending shaft; 61. Second bearing; 7. Inner tube; 71. Second clamp; 8. Top tube; 81. Picking hook; 9. Outer spring; 91. Connecting sleeve. Detailed Implementation

[0026] 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.

[0027] like Figure 1 , Figure 2As shown, a jujube shaking machine includes: a 26cc power unit 1 for providing power; a clutch cup 2 disposed above the 26cc power unit 1; a concentric shaft 3 detachably connected to the clutch cup 2; a carbon fiber tube 4 detachably connected to the concentric shaft 3, the carbon fiber tube 4 being disposed on the outside of the concentric shaft 3; a central shaft joint 5 detachably connected to the top surface of the concentric shaft 3; a curved shaft 6 disposed on the top of the central shaft joint 5; an inner tube 7 disposed on the outside of the central shaft joint 5, the inner tube 7 being connected to the top of the carbon fiber tube 4; a top tube 8 disposed on the upper side wall of the curved shaft 6, the top of the top tube 8 having a picking hook 81; and an outer spring 9 connecting the top surface of the inner tube 7 and the bottom surface of the top tube 8.

[0028] The 26cc motor 1 is a two-stroke fuel-powered engine with a maximum speed of 12,000 to 13,000 RPM. This maximum speed is sufficient to shake a tree trunk with a diameter of 5 cm. The 26cc motor 1 has a fuel tank 11 at its bottom, which provides fuel for power. The fuel tank 11 is directly connected to the 26cc motor 1 for easy carrying, and there is no long power line snagging on branches when climbing trees. The 26cc motor 1 is electrically connected to a control switch 12 and a throttle button 13. The control switch 12 and the throttle button 13 are slidably connected to the carbon fiber tube 4. The control switch 12 is used to control the start and stop of the 26cc motor 1, and the throttle button 13 is used to adjust the speed of the 26cc motor 1. The force of pressing the throttle is different depending on the diameter of the branch being shaken, thereby adjusting the shaking force of the branch. When shaking thin branches, the speed is lower, reducing noise.

[0029] The clutch cup 2 is connected to the clutch of the 26cc power unit 1. The top of the clutch cup 2 is equipped with a first clamp 21, which holds the bottom of the carbon fiber tube 4. The bottom of the carbon fiber tube 4 is inserted into the first clamp 21, and then the screw on the first clamp 21 is turned to fix the carbon fiber tube 4.

[0030] like Figure 3 As shown, the concentric shaft 3 has key teeth 31 at both its top and bottom, with a total of nine key teeth 31. The clutch cup 2 and the intermediate shaft connector 5 have keyways. The bottom of the concentric shaft 3 is inserted into the nine-tooth keyway of the clutch cup 2, and the top of the concentric shaft 3 is inserted into the nine-tooth keyway of the intermediate shaft connector 5. The concentric shaft 3 transmits power upwards to the intermediate shaft connector 5 and the curved shaft 6. Compared to eccentric rotation, the coaxial drive offers faster speeds and higher working efficiency.

[0031] like Figure 4 As shown, the top of the central shaft connector 5 is provided with a central shaft 51, and the top and bottom of the central shaft 51 are provided with first bearings 511, with a wear-resistant rubber pad 512 between the two first bearings 511. The outer ring of the first bearing 511 contacts the inner wall of the inner tube 7. The first bearing 511 prevents the central shaft 51 from shaking back and forth, and the wear-resistant rubber pad 512 also reduces the wear of the central shaft 51.

[0032] The bending shaft 6 is located at the top of the central shaft 51. The angle between the axis of the bending shaft 6 and the axis of the central shaft 51 is between 3 and 3.5 degrees. When the concentric shaft 3 and the central shaft 51 rotate, the top surface of the bending shaft 6 makes a circular motion.

[0033] Two second bearings 61 are provided on the upper side wall of the bending shaft 6, with a gap between the two second bearings 61. A wear-resistant rubber pad 512 is also provided at the gap. The bottom of the jacking pipe 8 is at the same height as the lower second bearing 61. The outer ring of the second bearing 61 is in contact with the inner wall of the jacking pipe 8. When the bending shaft 6 makes a circular motion, it drives the jacking pipe 8 and the harvesting hook 81 to rotate together.

[0034] The top surface of the inner tube 7 is at the same height as the first bearing 511 on the top surface of the central shaft 51. The bottom surface of the inner tube 7 is fitted onto the top of the carbon fiber tube 4. The inner tube 7 and the carbon fiber tube 4 are connected by the second clamp 71. The outer diameter of the carbon fiber tube 4 is 26mm, the inner diameter of the inner tube 7 is 26mm, and the outer diameter is 28mm. The inner tube 7 is fitted inside the carbon fiber tube 4. The upper inner diameter of the second clamp 71 is 28mm, and the lower inner diameter of the second clamp 71 is 26mm. After clamping the inner tube 7 and the carbon fiber tube 4 with the second clamp 71, the screw is tightened to clamp the carbon fiber tube 4 and the inner tube 7.

[0035] The outer spring 9 has connecting sleeves 91 at both its top and bottom. The upper connecting sleeve 91 is connected to the bottom of the top tube 8 by screws, and the lower connecting sleeve 91 is connected to the top of the inner tube 7 by screws. In use, the picking hook 81 is hooked onto the tree branch. When the bending shaft 6 drives the top tube 8 and the picking hook 81 to rotate, the torque of the outer spring 9 will increase. When the torque of the outer spring 9 is greater than the friction between the second bearing 61 and the inner wall of the top tube 8, the outer spring 9 drives the top tube 8 to return to its original position. This causes the rotation of the top tube 8 and the picking hook 81 to become left and right vibrations, which are transmitted to the branches, causing the jujubes on the branches to fall off.

[0036] This device uses a 26cc two-stroke motor, eliminating the gearbox of a traditional internal combustion engine. Combined with an external spring 9, it achieves a left-right vibration effect, capable of shaking small tree branches up to 5mm without breaking them. The 26cc motor 1 has a maximum speed exceeding the lithium-ion motor's maximum speed of 8,000 RPM, allowing it to shake branches up to 5cm in diameter, making it widely applicable. The 26cc motor 1 weighs 2.9kg, and the remaining components add up to approximately 1kg, for a total weight of about 4kg. This is 2kg lighter than the existing 32cc and 34cc motors, which, combined with the gearbox and other components, weigh 6kg. Using the 26cc motor 1 also reduces fuel consumption, keeping daily fuel consumption below 2 liters under normal operating conditions.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A jujube shaking machine, characterized in that, include: A 26cc power unit (1) is used to provide power; A clutch cup (2) is located above the 26cc power unit (1); A concentric shaft (3) detachably connected to the clutch cup (2); A carbon fiber tube (4) is detachably connected to the concentric shaft (3), and the carbon fiber tube (4) is located on the outside of the concentric shaft (3); A central shaft connector (5) is detachably connected to the top surface of the concentric shaft (3); A curved shaft (6) is provided at the top of the central shaft joint (5); An inner tube (7) is provided on the outside of the central shaft joint (5), and the inner tube (7) is connected to the top of the carbon fiber tube (4); A jacking pipe (8) is provided on the upper side wall of the bending shaft (6), and a harvesting hook (81) is located above the jacking pipe (8); and An outer spring (9) connects the top surface of the inner tube (7) and the bottom surface of the top tube (8).

2. The jujube shaking machine according to claim 1, characterized in that: The 26cc power unit (1) has an oil tank (11) at the bottom. The 26cc power unit (1) is electrically connected to a control switch (12) and a throttle button (13). The control switch (12) and the throttle button (13) are slidably connected to the carbon fiber tube (4).

3. A jujube shaking machine according to claim 2, characterized in that: The top of the clutch cup (2) is provided with a first clamp (21), which clamps the bottom of the carbon fiber tube (4).

4. A jujube shaking machine according to claim 3, characterized in that: The top and bottom ends of the concentric shaft (3) are provided with key teeth (31), the clutch cup (2) and the central shaft joint (5) are provided with keyways, the bottom of the concentric shaft (3) is located in the clutch cup (2), and the top of the concentric shaft (3) is located in the central shaft joint (5).

5. A jujube shaking machine according to claim 4, characterized in that: The top of the central shaft connector (5) is provided with a central shaft (51), and the top and bottom of the central shaft (51) are provided with first bearings (511), and a wear-resistant rubber pad (512) is provided between the two first bearings (511).

6. A jujube shaking machine according to claim 5, characterized in that: The bending shaft (6) is located at the top of the central shaft (51), and the angle between the axis of the bending shaft (6) and the axis of the central shaft (51) is between 3 degrees and 3.5 degrees.

7. A jujube shaking machine according to claim 6, characterized in that: The upper sidewall of the bending shaft (6) is provided with two second bearings (61), and there is a gap between the two second bearings (61). A wear-resistant rubber pad (512) is also provided at the gap.

8. A jujube shaking machine according to claim 7, characterized in that: The top surface of the inner tube (7) is at the same height as the first bearing (511) on the top surface of the central shaft (51). The bottom surface of the inner tube (7) is sleeved on the top of the carbon fiber tube (4). The inner tube (7) and the carbon fiber tube (4) are connected by a second clamp (71).

9. A jujube shaking machine according to claim 8, characterized in that: The bottom of the top pipe (8) is at the same height as the second bearing (61) below it.

10. A jujube shaking machine according to claim 9, characterized in that: The outer spring (9) is provided with connecting sleeves (91) at both the top and bottom. The upper connecting sleeve (91) is connected to the bottom of the top tube (8) by screws, and the lower connecting sleeve (91) is connected to the top of the inner tube (7) by screws.

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