Electric fruit picking machine

Abstract

The utility model provides an electric fruit picking machine, and aims to solve the problem that when an electric fruit picking machine in the prior art is used, due to the fact that impact generated by reciprocating vibration of a hook on a handle is strong, arms of a user are prone to ache, and the user cannot stably hold the handle. An electric fruit picking machine comprises an operation part provided with a driving assembly, and the output end of the driving assembly is provided with a transmission rod part; the working machine head comprises a machine head shell and a hook part arranged on the machine head shell; the driving assembly drives the hook part to vibrate in a reciprocating mode within a limited angle range relative to the machine head shell through the transmission rod part. And the vibration reduction assembly comprises a vibration reduction sleeve arranged on the outer side of the transmission rod part in a sleeving mode and rotationally connected with the transmission rod part, and the vibration reduction sleeve is in sliding connection with the machine head shell in the axial direction of the transmission rod part. According to the fruit picking machine, vibration impact on arms is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of harvesting tools technology, specifically relating to an electric fruit harvester. Background Technology

[0002] Currently, harvesting fruits such as dates, sea buckthorn berries, and pecans often requires manual picking, which is very inconvenient because these fruits are usually quite small. An existing technology involves an electric fruit shaker. This shaker has hooks for attaching to tree branches. During operation, the motor drives the hooks to vibrate back and forth, causing the branches to shake and dislodge the fruits, greatly facilitating harvesting. However, the motor's action of driving the hooks to vibrate back and forth generates a strong impact on the user's arm through the handle, making it difficult for the user to hold the handle steadily and causing arm pain. Utility Model Content

[0003] This utility model provides an electric fruit harvester, which aims to solve the problem that in the prior art, the reciprocating vibration of the hook generates a strong impact on the handle, which easily causes the user's arm to ache and makes it difficult to hold the handle stably.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] An electric fruit harvester includes:

[0006] An operating unit is provided with a drive assembly, and the output end of the drive assembly is provided with a transmission rod, which extends upward from the output end of the drive assembly.

[0007] A working head, disposed on the upper side of the operating part, includes a head housing and a hook portion disposed on the head housing, the hook portion being eccentrically disposed at the upper end of the transmission rod portion; a circumferential limiting component is provided between the hook portion and the head housing to limit the rotation angle of the hook portion relative to the head housing; the drive assembly drives the hook portion to reciprocate within the angle range limited by the circumferential limiting component relative to the head housing via the transmission rod portion; and...

[0008] A vibration damping assembly is disposed on the machine head housing. The vibration damping assembly includes a vibration damping sleeve sleeved on the outside of the transmission rod and rotatably connected to the transmission rod. The vibration damping sleeve is slidably connected to the machine head housing along the axial direction of the transmission rod.

[0009] A further solution: A double helical cross guide rail is provided around the upper outer side of the transmission rod, and the damping sleeve is provided with a sliding part that cooperates with the double helical cross guide rail.

[0010] Based on the above technical solution: by setting a double helical cross guide rail around the upper end of the transmission rod and setting a sliding part on the damping sleeve, when the transmission rod drives the hook part to reciprocate and generate radial vibration impact on the machine head shell, the sliding part cooperates with the double helical cross guide rail, so that the damping sleeve can slide along the axial direction of the machine head shell from the lower end to the upper end and then from the upper end to the lower end, and can smoothly repeat the above process, so that the damping sleeve can better play the role of vibration reduction.

[0011] A further embodiment: The transmission rod includes a first rod located between the drive assembly and the head housing, and a second rod located inside the head housing. The first rod and the second rod are coaxially arranged and synchronously rotated. The double helix cross guide rail is arranged on the second rod. The hook is eccentrically arranged at the upper end of the second rod.

[0012] Based on the above technical solution: the above settings make the structural layout more optimized and facilitate installation.

[0013] A further embodiment: The machine head housing is provided with an annular guide groove extending axially along the second rod body, and the vibration damping sleeve is located within the annular guide groove;

[0014] The inner side of the annular guide groove is provided with an arc-shaped inner wall, the second rod is located inside the arc-shaped inner wall, and the sliding part passes through the notch of the arc-shaped inner wall and cooperates with the double helix cross guide rail.

[0015] Based on the above technical solution: by setting an annular guide groove inside the machine head housing, and with the second rod located inside the arc-shaped inner wall, when the transmission rod drives the hook part to reciprocate, the sliding part cooperates with the double helix cross guide rail, so that the damping sleeve slides up and down in the annular guide groove, enabling the damping sleeve to achieve a better damping effect, thereby reducing the radial impact vibration of the hook part on the machine head housing.

[0016] A further solution: An eccentric shaft is provided on the upper side of the second rod, and the lower end of the hook is sleeved on the eccentric shaft and rotatably connected to the eccentric shaft.

[0017] A further solution: A guide assembly is provided between the machine head housing and the vibration damping sleeve, the guide assembly being used to constrain the vibration damping sleeve to slide relative to the machine head housing along the axial direction of the transmission rod.

[0018] Based on the above technical solution: by setting a guide component, when the transmission rod drives the hook part to reciprocate relative to the machine head housing, the damping sleeve can slide stably along the axial direction relative to the machine head housing through the guide component, thereby achieving a better vibration reduction effect.

[0019] A further embodiment: The guide assembly includes a plurality of guide posts arranged around the damping sleeve, each guide post being parallel to the axial direction of the transmission rod, the damping sleeve being slidably connected to the plurality of guide posts, and the upper and lower ends of each guide post being fixedly connected to the machine head housing.

[0020] Based on the above technical solution: the vibration damping sleeve is slidably connected to several of the guide columns, thereby playing a more stable guiding role, so that the vibration damping sleeve can slide more smoothly along the axial direction relative to the machine head shell during operation.

[0021] A further embodiment: The circumferential limiting component includes a limiting groove disposed on the machine head housing and a limiting block disposed on the hook portion, wherein the limiting block is located within the limiting groove.

[0022] Based on the above technical solution: the limiting block, by cooperating with the limiting groove, restricts the swing angle of the hook part relative to the machine head housing.

[0023] A further embodiment: The operating unit includes a drive assembly mounting housing and a rod housing disposed between the drive assembly mounting housing and the head housing, the drive assembly being located inside the drive assembly mounting housing, and the transmission rod portion passing through the rod housing.

[0024] Based on the above technical solution: the rod outer shell is used to protect the transmission rod, and at the same time, it also allows users to easily control the fruit harvester by holding the rod outer shell.

[0025] A further embodiment: The hook portion is provided with a hook, and the hook tip is deflected relative to the hook body in a clockwise or counterclockwise direction.

[0026] Based on the above technical solution: the hook tip is deflected so as to form an oblique contact with the branch, which can not only better hook the branch to achieve a better vibration effect to make the fruit fall off, but also reduce the damage to the branch during the vibration process.

[0027] The beneficial effects of this utility model are as follows:

[0028] 1. This utility model, by sleeved on the outside of the transmission rod and rotatably connected thereto, and axially slidingly connected to the machine head housing, allows the damping sleeve to conduct radial vibration energy axially rather than diffuse radially when the hook part reciprocates circumferentially relative to the machine head housing, thereby reducing the vibration amplitude transmitted to the operating part and thus reducing the vibration impact on the arm. This makes it more comfortable for the user to hold the operating part and more convenient to complete the fruit picking action.

[0029] 2. By eccentrically setting the hook part at the upper end of the transmission rod part, the drive assembly drives the hook part to reciprocate within the angle range limited by the circumferential limiting component relative to the machine head housing through the transmission rod part, thereby causing the hook to generate high-frequency oscillation to shake the fruit off the branches. The eccentric structure design can enhance the vibration transmission efficiency, making the fruit easier to be shaken off, thereby improving the harvesting efficiency.

[0030] 3. The circumferential limiting component restricts the swing angle of the hook to prevent excessive swing angle from causing hook deformation or branch breakage, ensuring that the vibration range is controllable. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a structural schematic diagram of an electric fruit harvester according to this utility model.

[0033] Figure 2 This is a cross-sectional structural diagram of the fruit harvester of this utility model.

[0034] Figure 3 yes Figure 2 A magnified structural diagram at point A.

[0035] Figure 4 This is a cross-sectional structural diagram of the working head of this utility model.

[0036] Figure 5 This is a schematic diagram of the structure of the vibration damping sleeve and the double helix cross guide rail.

[0037] Figure 6 This is a schematic diagram of the exploded structure of the vibration damping sleeve and the second rod.

[0038] Figure 7 This is a schematic diagram of the circumferential limiting component.

[0039] Figure 8 This is a schematic diagram of the drive component.

[0040] Explanation of the labels in the diagram:

[0041] 1-Operating unit; 11-Drive assembly mounting housing; 111-Drive assembly; 111a-Motor; 111b-Gear set; 12-Rod housing; 13-Transmission rod; 131-First rod; 132-Second rod; 132a-Double helical cross guide rail; 133-Eccentric shaft; 134-Coupling; 2-Working head; 21-Hook; 211-Hook; 212-Limiting block; 22-Annular guide groove; 221-Arc-shaped inner sidewall; 23-Guide column; 24-Vibration damping sleeve; 241-Sliding part; 25-Second rod bearing; 26-Head housing; 261-Limiting groove; 4-Battery pack. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model. 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.

[0043] like Figures 1 to 8 As shown, this embodiment provides an electric fruit harvester, including:

[0044] The operation unit 1 is provided with a drive assembly 111. The output end of the drive assembly 111 is provided with a transmission rod 13, which extends upward from the output end of the drive assembly 111.

[0045] A working head 2 is disposed on the upper side of the operating part 1. The working head 2 includes a head housing 26 and a hook portion 21 disposed on the head housing 26. The hook portion 21 is eccentrically disposed at the upper end of the transmission rod portion 13. A circumferential limiting component is provided between the hook portion 21 and the head housing 26 to limit the rotation angle of the hook portion 21 relative to the head housing 26. The drive assembly 111 drives the hook portion 21 to reciprocate within the angle range limited by the circumferential limiting component relative to the head housing 26 via the transmission rod portion 13.

[0046] A vibration damping assembly is disposed on the machine head housing 26. The vibration damping assembly includes a vibration damping sleeve 24 sleeved on the outside of the transmission rod portion 13 and rotatably connected to the transmission rod portion 13. The vibration damping sleeve 24 is slidably connected to the machine head housing 26 along the axial direction of the transmission rod portion 13. When the fruit harvester is working, the drive assembly 111 drives the hook portion 21 to reciprocate within the angle range limited by the circumferential limiting assembly relative to the machine head housing 26 through the transmission rod portion 13. At this time, the hook portion 21 will generate radial impact vibration on the machine head housing 26. At the same time, the transmission rod portion 13 drives the vibration damping sleeve 24 to slide axially relative to the machine head housing 26 by rotating relative to the vibration damping sleeve 24. The vibration damping sleeve 24 slides axially relative to the machine head housing 26, so that the vibration energy is transmitted axially instead of radially diffused, thereby reducing the vibration amplitude transmitted to the machine head housing 26 and the operating part 1, and thus reducing the impact vibration on the arm.

[0047] In some specific implementations, such as Figures 3 to 6 As shown, in order to ensure a stable fit between the transmission rod 13 and the damping sleeve 24, a double-helix cross guide rail 132a is provided around the upper outer side of the transmission rod 13. The damping sleeve 24 is provided with a sliding part 241 that cooperates with the double-helix cross guide rail 132a. When the transmission rod 13 drives the hook part 21 to reciprocate relative to the machine head housing 26, the sliding part 241, through its cooperation with the double-helix cross guide rail 132a, allows the damping sleeve 24 to slide along the axial direction of the machine head housing 26 from the lower end to the upper end and then from the upper end to the lower end, and can smoothly repeat the above process. This allows the damping sleeve 24 to slide stably up and down along the axial direction, always playing a damping role. The double-helix cross guide rail 132a includes a first helical guide rail and a second helical guide rail. Both the first helical guide rail and the second helical guide rail are arranged around the upper end of the transmission rod. The starting ends of the first helical guide rail and the second helical guide rail are the same, and the ending ends of the first helical guide rail and the second helical guide rail are the same. Furthermore, the helical directions of the first helical guide rail and the second helical guide rail are opposite, namely left-handed and right-handed, respectively.

[0048] In some specific implementations, such as Figure 2 and Figure 3 As shown, the transmission rod 13 includes a first rod 131 located between the drive assembly 111 and the head housing 26, and a second rod 132 located inside the head housing 26. The first rod 131 and the second rod 132 are coaxially arranged and synchronously rotated and connected, specifically through a spline connection. The double helix cross guide rail 132a is arranged on the second rod 132. The hook 21 is eccentrically arranged at the upper end of the second rod 132.

[0049] In some specific implementations, such as Figures 2 to 4 As shown, the machine head housing 26 is provided with an annular guide groove 22 extending along the axial direction of the second rod 132, and the vibration damping sleeve 24 is located in the annular guide groove 22;

[0050] The annular guide groove 22 has an arc-shaped inner wall 221 on its inner side. The second rod 132 is located inside the arc-shaped inner wall 221, and the sliding part 241 passes through the notch of the arc-shaped inner wall 221 and engages with the double helix cross guide rail 132a. The second rod 132 is rotatably mounted inside the arc-shaped inner wall 221 via two upper and lower second rod bearings 25. The sliding part 241 is specifically a slider fixedly connected to the damping sleeve 24. When the transmission rod 13 drives the hook 21 to reciprocate, the sliding part 241 engages with the double helix cross guide rail 132a, causing the damping sleeve 24 to slide up and down within the annular guide groove 22, thereby enabling the damping sleeve 24 to achieve a better damping effect and reducing the radial impact vibration amplitude caused by the hook 21 to the machine head housing 26.

[0051] To facilitate the eccentric placement of the hook portion 21 on the upper end of the second rod 132, an eccentric shaft 133 is provided on the upper side of the second rod 132. The lower end of the hook portion 21 is sleeved on the eccentric shaft 133 and rotatably connected to the eccentric shaft 133, specifically through a bearing. A coupling 134 is also provided between the upper end of the second rod 132 and the eccentric shaft 133, thereby facilitating the eccentric connection between the second rod 132 and the eccentric shaft 133.

[0052] In some specific implementations, such as Figures 3 to 5 As shown, a guide assembly is provided between the machine head housing 26 and the vibration damping sleeve 24. The guide assembly is used to constrain the vibration damping sleeve 24 to slide relative to the machine head housing 26 along the axial direction of the transmission rod portion 13. That is, the guide assembly ensures that the vibration damping sleeve 24 slides stably up and down relative to the machine head housing 26 along the axial direction of the transmission rod portion 13 without deflection. Specifically, the guide assembly includes a plurality of guide posts 23 arranged around the vibration damping sleeve 24. Each guide post 23 is parallel to the axial direction of the transmission rod portion. The vibration damping sleeve 24 is slidably connected to the plurality of guide posts 23, and the upper and lower ends of each guide post 23 are fixedly connected to the machine head housing 26. The vibration damping sleeve 24 is provided with a plurality of through holes, and the plurality of guide posts 23 are arranged one-to-one through the plurality of through holes. Preferably, the plurality of guide posts 23 are arranged at equal intervals around the vibration damping sleeve 24.

[0053] In some specific implementations, such as Figure 8As shown, the circumferential limiting assembly includes a limiting groove 261 disposed on the machine head housing 26 and a limiting block 212 disposed on the hook portion 21. The limiting block 212 is located within the limiting groove 261. The diameter of the limiting groove 261 is larger than that of the limiting block 212, so that when the transmission rod portion 13 drives the hook portion 21 to reciprocate, the limiting block 212 reciprocates and impacts the two side walls of the limiting groove 261, thereby forming a radial impact on the machine head housing 26. At this time, the transmission rod portion 13 drives the damping sleeve 24 to slide axially relative to the machine head housing 26 by rotating relative to the damping sleeve 24, thereby reducing the vibration amplitude transmitted to the machine head housing 26 and the operating portion 1, and thus reducing the impact vibration on the arm.

[0054] In some specific implementations, such as Figure 1 , Figure 2 and Figure 7 As shown, the operating unit 1 includes a drive assembly mounting housing 11 and a rod housing 12 disposed between the drive assembly mounting housing 11 and the head housing 26. The drive assembly 111 is located inside the drive assembly mounting housing 11, and the transmission rod portion 13 passes through the rod housing 12. The drive assembly 111 specifically includes a motor 111a and a gear set 111b. The motor 111a drives the transmission rod portion 13 to rotate through the gear set 111b. A battery pack 4 is also provided on the drive assembly mounting housing 11 for supplying power to the motor 111a.

[0055] In some specific implementations, such as Figure 8 As shown, the hook portion 21 is provided with a hook 211. The hook tip of the hook 211 is deflected relative to the hook body in a clockwise or counterclockwise direction, with a deflection angle between 10 and 30 degrees, specifically 10, 15, 20, or 30 degrees. The clockwise or counterclockwise deflection of the hook tip creates an oblique contact with the branch, which not only better hooks the branch and achieves a better vibration effect to remove the fruit, but also reduces damage to the branch during vibration.

[0056] Working principle explanation:

[0057] When the fruit harvester is working, the drive assembly 111 drives the hook part 21 to reciprocate relative to the machine head shell 26 within the angle range limited by the circumferential limiting assembly through the transmission rod part 13. At this time, the hook part 21 will generate radial impact vibration on the machine head shell 26. The transmission rod part 13 cooperates with the damping sleeve 24 through the double helix cross guide rail 132a, thereby driving the damping sleeve 24 to slide axially relative to the machine head shell 26. The damping sleeve 24 slides axially along the machine head shell 26, so that the radial vibration energy is transmitted axially instead of diffused radially, thereby reducing the vibration amplitude transmitted to the machine head shell 26 and the operating part 1, and thus reducing the impact vibration on the arm.

[0058] This utility model is not limited to the above-mentioned optional embodiments. Under the premise of non-contradiction, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the guidance of this utility model. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope of the claims of this utility model are within the protection scope of this utility model.

Claims

1. An electric fruit harvester, characterized in that, include: An operating unit is provided with a drive assembly, and the output end of the drive assembly is provided with a transmission rod, which extends upward from the output end of the drive assembly. A working head is disposed on the upper side of the operating part. The working head includes a head housing and a hook portion disposed on the head housing. The hook portion is eccentrically disposed at the upper end of the transmission rod portion. A circumferential limiting component is provided between the hook portion and the head housing to limit the rotation angle of the hook portion relative to the head housing. The drive component drives the hook portion to reciprocate within the angle range limited by the circumferential limiting component relative to the head housing through the transmission rod portion. as well as, A vibration damping assembly is disposed on the machine head housing. The vibration damping assembly includes a vibration damping sleeve sleeved on the outside of the transmission rod and rotatably connected to the transmission rod. The vibration damping sleeve is slidably connected to the machine head housing along the axial direction of the transmission rod.

2. The electric fruit harvester according to claim 1, characterized in that, A double-helix cross guide rail is provided around the upper outer side of the transmission rod, and a sliding part that cooperates with the double-helix cross guide rail is provided on the damping sleeve.

3. The electric fruit harvester according to claim 2, characterized in that, The transmission rod includes a first rod located between the drive assembly and the head housing, and a second rod located inside the head housing. The first rod and the second rod are coaxially arranged and synchronously rotated. The double helix cross guide rail is arranged on the second rod. The hook is eccentrically arranged at the upper end of the second rod.

4. The electric fruit harvester according to claim 3, characterized in that, The machine head housing is provided with an annular guide groove extending along the axial direction of the second rod, and the vibration damping sleeve is located in the annular guide groove; The inner side of the annular guide groove is provided with an arc-shaped inner wall, the second rod is located inside the arc-shaped inner wall, and the sliding part passes through the notch of the arc-shaped inner wall and cooperates with the double helix cross guide rail.

5. An electric fruit harvester according to claim 3, characterized in that, The upper side of the second rod is provided with an eccentric shaft, and the lower end of the hook is sleeved on the eccentric shaft and rotatably connected to the eccentric shaft.

6. The electric fruit harvester according to claim 1, characterized in that, A guide assembly is provided between the machine head housing and the vibration damping sleeve. The guide assembly is used to constrain the vibration damping sleeve to slide relative to the machine head housing along the axial direction of the transmission rod.

7. An electric fruit harvester according to claim 6, characterized in that, The guide assembly includes a plurality of guide posts arranged around the vibration damping sleeve. Each guide post is parallel to the axial direction of the transmission rod. The vibration damping sleeve is slidably connected to the plurality of guide posts. The upper and lower ends of each guide post are fixedly connected to the machine head housing.

8. An electric fruit harvester according to claim 1, characterized in that, The circumferential limiting component includes a limiting groove disposed on the machine head housing and a limiting block disposed on the hook portion, wherein the limiting block is located within the limiting groove.

9. An electric fruit harvester according to claim 1, characterized in that, The operating unit includes a drive assembly mounting housing and a rod housing disposed between the drive assembly mounting housing and the head housing. The drive assembly is located inside the drive assembly mounting housing, and the transmission rod passes through the rod housing.

10. An electric fruit harvester according to claim 1, characterized in that, The hook portion is provided with a hook, and the hook tip is deflected relative to the hook body in a clockwise or counterclockwise direction.

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