Small berry picking machine based on eccentric shaft principle

The eccentric shaft-based small fruit harvester addresses inefficient harvesting by converting rotational motion into linear motion for efficient fruit dislodging, enhancing efficiency and safety while reducing costs and environmental impact.

CN223094273UActive Publication Date: 2025-07-15KUNMING UNIV OF SCI & TECH
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422899924.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-07-15
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

The small berries are mostly planted in hills and mountains, resulting in poor picking conditions, poor adaptability of large machinery, and high traditional manual harvesting efficiency and cost pressure.

Method used

A small berry picker based on the principle of eccentric shaft is designed. The rotating motion of the eccentric shaft is converted into the plane and linear motion of the connecting rod, which drives the fork to swing the branches and realizes the shaking and falling of the small berry.

Benefits of technology

It improves the efficiency of picking small berries, is easy to operate, has little environmental pollution, is lightweight, is ergonomic, has high safety, is suitable for one-hand operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223094273U_ABST
    Figure CN223094273U_ABST
Patent Text Reader

Abstract

The utility model relates to a small berry picking machine based on an eccentric shaft principle, and relates to the technical field of agricultural machinery. A small berry picking machine based on the eccentric shaft principle comprises a shell and a vibration mechanism installed in the shell. The eccentric end of the eccentric shaft rod is connected with the first connecting rod through the first connecting bearing, the rotary motion of the eccentric shaft rod can be converted into the planar motion of the first connecting rod, meanwhile, the first connecting rod is connected with the third connecting rod through the second connecting rod, the planar motion of the first connecting rod can be converted into the linear motion of the third connecting rod, and finally the linear motion of the third connecting rod is converted. The shifting fork is fixedly installed on the third connecting rod, and the shifting fork can be driven by the third connecting rod to do linear motion. Therefore, an operator clamps branches of the small berries through the shifting fork, the branches can be driven to swing through the shifting fork by driving the motor, the small berries on the branches are shaken and fall down to be collected, and the picking efficiency of the small berries is effectively improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the technical field of agricultural machinery, and in particular, to a small berry picker based on the principle of an eccentric shaft. Background Art

[0002] There is a rich variety of small berries. However, since orchards are mostly built in hilly and mountainous areas, the site conditions for small berry picking are poor, and the picking working conditions are complex. Many large-scale, technically advanced and reliable small berry mechanical picking equipments have poor adaptability and cannot perform small berry picking well.

[0003] Currently, with the continuous expansion of the planting area of small berries, the traditional manual harvesting method faces great pressure in terms of efficiency and cost. There is an urgent need for a small berry picker based on the principle of an eccentric shaft to effectively improve the picking efficiency and reduce costs. Utility Model Content

[0004] To solve or partially solve the problems existing in the related technologies, this application provides a small berry picker based on the principle of an eccentric shaft, which can effectively improve the picking efficiency of small berries and is convenient for operators to use.

[0005] This application provides a small berry picker based on the principle of an eccentric shaft, including: a housing, and a vibration mechanism installed in the housing;

[0006] The housing is a two-piece housing, which is installed and fixed by bolts;

[0007] The vibration mechanism includes: a motor, a coupling, an eccentric shaft rod, a first fixed bearing, a first connecting rod, a second connecting rod, a first linear bearing, a third connecting rod, and a dial rod;

[0008] A first installation groove is provided inside the housing, the motor is installed in the first installation groove, and the output shaft of the motor is connected to the eccentric shaft rod through a coupling;

[0009] A second installation groove is provided inside the housing, at a position above the first installation groove. A first fixed bearing is installed in the second installation groove, and the eccentric shaft rod passes through the first fixed bearing and is fixedly installed on the first fixed bearing;

[0010] Two slot holes are provided at both ends of the first connecting rod, and a first connecting bearing and a second connecting bearing are respectively installed in the slot holes at both ends;

[0011] The eccentric end of the eccentric shaft rod passes through the first connecting bearing and is connected to the first connecting rod;

[0012] One end of the second connecting rod passes through the second connecting bearing and is connected to the first connecting rod;

[0013] The rear end of the third connecting rod is provided with a third connecting bearing, and the other end of the second connecting rod passes through the third connecting bearing to realize the connection and installation with the third connecting rod;

[0014] The interior of the housing is provided with a third installation groove, and the first linear bearing is installed in the third installation groove. The shaft body of the third connecting rod passes through the first linear bearing and is fixedly installed on the first linear bearing;

[0015] A slot hole is provided at the front end of the third connecting rod, and the lever is fixedly installed in the slot hole through a bolt.

[0016] Optionally, in some embodiments of the present application:

[0017] The lever is provided with a serrated tooth groove.

[0018] Optionally, in some embodiments of the present application:

[0019] A first eccentric shaft groove is provided at the bottom position of the eccentric shaft rod, and an elastic retaining ring is installed at the first eccentric shaft groove for limiting and fixing the first fixed bearing;

[0020] A second eccentric shaft groove is provided at the top position of the eccentric shaft rod, and an elastic retaining ring is installed at the second eccentric shaft groove for limiting and fixing the first connecting bearing.

[0021] Optionally, in some embodiments of the present application:

[0022] A first connecting rod groove is provided at the bottom position of the second connecting rod, and an elastic retaining ring is installed at the first connecting rod groove for limiting and fixing the second connecting bearing;

[0023] A second connecting rod groove is provided at the top position of the second connecting rod, and an elastic retaining ring is installed at the second connecting rod groove for limiting and fixing the third connecting bearing;

[0024] The second connecting rod is provided with a connecting rod boss for positioning and installing the second connecting bearing and the third connecting bearing.

[0025] Optionally, in some embodiments of the present application:

[0026] The housing is provided with a switch button, and the switch button is electrically connected to the motor for controlling the start and stop of the motor.

[0027] The technical solution provided by the present application may include the following beneficial effects:

[0028] In this application, the eccentric end of the eccentric shaft rod is connected to the first connecting rod through the first connecting bearing, which can convert the rotational motion of the eccentric shaft rod into the planar motion of the first connecting rod. At the same time, the first connecting rod is connected to the third connecting rod through the second connecting rod, which can convert the planar motion of the first connecting rod into the linear motion of the third connecting rod. Finally, by fixing the fork to the third connecting rod, the fork can perform linear motion driven by the third connecting rod. Therefore, the operator can clamp the branches of small berries with the fork and drive the motor, and the fork can drive the branches to swing, so as to shake the small berries on the branches to fall for collection, effectively improving the picking efficiency of small berries.

[0029] The overall structure of this application is simple. It is driven by electric energy through a DC motor, with simple and convenient maintenance, little environmental pollution, light overall weight, and the overall design conforms to ergonomics. It can adopt a single-handed operation mode, greatly improving the picking efficiency of small berries and enhancing the safety during use.

[0030] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. Brief Description of the Drawings

[0031] By describing the exemplary embodiments of this application in more detail in conjunction with the drawings, the above and other objects, features, and advantages of this application will become more obvious. Among them, in the exemplary embodiments of this application, the same reference numerals generally represent the same components.

[0032] Figure 1 It is a schematic diagram of the internal structure of the small berry picker in the embodiment of this application;

[0033] Figure 2 It is a schematic diagram of the external structure of the small berry picker in the embodiment of this application;

[0034] Figure 3 It is a schematic diagram of the structure of the vibration device in the embodiment of this application;

[0035] Figure 4 It is a schematic cross-sectional structure of a part of the vibration device in the embodiment of this application;

[0036] Figure 5 It is a schematic diagram of the structure of the eccentric shaft in the embodiment of this application;

[0037] Figure 6 It is a schematic diagram of the structure of the first connecting rod in the embodiment of this application;

[0038] Figure 7 It is a schematic diagram of the structure of the third connecting rod in the embodiment of this application;

[0039] Figure 8It is a schematic structural diagram of the second connecting rod in an embodiment of the present application.

[0040] Reference numerals: 1 - housing, 101 - first mounting groove, 102 - second mounting groove, 103 - third mounting groove, 2 - motor, 3 - coupling, 4 - first fixed bearing, 5 - eccentric shaft rod, 501 - first eccentric shaft groove, 502 - second eccentric shaft groove, 6 - first connecting rod, 601 - first connecting bearing, 602 - second connecting bearing, 7 - third connecting rod, 701 - third connecting bearing, 702 - slot hole, 8 - second connecting rod, 801 - first connecting rod groove, 802 - second connecting rod groove, 803 - connecting rod boss, 9 - first linear bearing, 10 - lever, 11 - switch button. Detailed implementation manners

[0041] The embodiments of the present application will be described in more detail below with reference to the drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0042] It should be understood that although the terms "first", "second", "third", etc. may be used in the present application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0043] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0044] Unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] There is a rich variety of small berries. However, since orchards are mostly built in hilly and mountainous areas, the site conditions for small berry picking are poor, and the picking working conditions are complex. Many large-scale, technically advanced, and reliable small berry mechanical picking equipments have poor adaptability and cannot perform small berry picking well.

[0046] Currently, as the planting area of small berries is continuously expanding, the traditional manual harvesting method is facing huge pressure in terms of efficiency and cost. There is an urgent need for a small berry picking machine based on the eccentric shaft principle to effectively improve the picking efficiency and reduce costs.

[0047] In view of the above problems, the embodiments of the present application provide a small berry picking machine based on the eccentric shaft principle, which can effectively improve the picking efficiency of small berries and is convenient for operators to use.

[0048] The following will describe in detail the technical solutions of the embodiments of the present application with reference to the accompanying drawings.

[0049] Figure 1 is a schematic diagram of the internal structure of the small berry picking machine in the embodiment of the present application;

[0050] Figure 2 is a schematic diagram of the external structure of the small berry picking machine in the embodiment of the present application;

[0051] Figure 3 is a schematic diagram of the structure of the vibration device in the embodiment of the present application;

[0052] Figure 4 is a schematic cross-sectional structure of a part of the vibration device in the embodiment of the present application;

[0053] Figure 5 is a schematic diagram of the structure of the eccentric shaft in the embodiment of the present application;

[0054] Figure 6 is a schematic diagram of the structure of the first connecting rod in the embodiment of the present application;

[0055] Figure 7 is a schematic diagram of the structure of the third connecting rod in the embodiment of the present application;

[0056] Figure 8It is a schematic structural diagram of the second connecting rod in an embodiment of the present application.

[0057] See Figures 1-8 , a small berry picking machine based on the eccentric shaft principle, comprising: a housing 1, and a vibration mechanism disposed and installed in the housing 1.

[0058] The housing 1 is a split housing 1, which is fixedly installed by bolts. Among them, the housing 1 is integrally in the shape of a handle, which is convenient to hold.

[0059] The vibration mechanism includes: a motor 2, a coupling 3, an eccentric shaft rod 5, a first fixed bearing 4, a first connecting rod 6, a second connecting rod 8, a first linear bearing 9, a third connecting rod 7, and a lever 10.

[0060] A first installation groove 101 is provided inside the housing 1, the motor 2 is disposed and installed in the first installation groove 101, and the output shaft of the motor 2 is connected to the eccentric shaft rod 5 through the coupling 3.

[0061] In this embodiment, the motor 2 is a DC motor 2, the coupling 3 is a spring coupling 3, and the spring coupling 3 can well connect the motor 2 and the eccentric shaft rod 5 to realize the rotational movement of the eccentric shaft driven by the driving motor 2.

[0062] A second installation groove 102 is provided inside the housing 1, which is located above the first installation groove 101. A first fixed bearing 4 is disposed and installed in the second installation groove 102, and the eccentric shaft rod 5 passes through the first fixed bearing 4 and is fixedly installed on the first fixed bearing 4.

[0063] In this embodiment, by providing the first fixed bearing 4, the eccentric shaft rod 5 can stably rotate under the support of the first fixed bearing 4, ensuring the transmission efficiency.

[0064] Both ends of the first connecting rod 6 are provided with two slot holes, and a first connecting bearing 601 and a second connecting bearing 602 are respectively disposed and installed in the slot holes at both ends.

[0065] The eccentric end of the eccentric shaft rod 5 passes through the first connecting bearing 601 and is connected and installed with the first connecting rod 6; one end of the second connecting rod 8 passes through the second connecting bearing 602 and is connected and installed with the first connecting rod 6.

[0066] A third connecting bearing 701 is disposed and installed at the rear end of the third connecting rod 7, and the other end of the second connecting rod 8 passes through the third connecting bearing 701 to realize the connection and installation with the third connecting rod 7.

[0067] Inside the housing 1, a third mounting groove 103 is provided. The first linear bearing 9 is installed in the third mounting groove 103. The shaft body of the third connecting rod 7 passes through the first linear bearing 9 and is fixedly installed on the first linear bearing 9.

[0068] A slot hole 702 is provided at the front end of the third connecting rod 7. The lever 10 is fixedly installed in the slot hole 702 by bolts.

[0069] In this embodiment, the eccentric end of the eccentric shaft rod 5 is connected to the first connecting rod 6 through the first connecting bearing 601, which can convert the rotational motion of the eccentric shaft rod 5 into the planar motion of the first connecting rod 6. At the same time, the first connecting rod 6 is connected to the third connecting rod 7 through the second connecting rod 8, which can convert the planar motion of the first connecting rod 6 into the linear motion of the third connecting rod 7. Finally, by fixing the fork to the third connecting rod 7, the fork can perform linear motion driven by the third connecting rod 7. Therefore, the operator can hold the branch of the small berries with the fork and drive the motor 2 to swing the branch through the fork, so as to shake the small berries on the branch off for collection, effectively improving the picking efficiency of the small berries.

[0070] Specifically: The lever 10 is provided with serrated tooth grooves.

[0071] In this embodiment, by setting serrated tooth grooves, different amplitudes can be selected through different tooth grooves to meet different operation requirements and ensure the picking efficiency.

[0072] Specifically: At the bottom position of the eccentric shaft rod 5, a first eccentric shaft groove 501 is provided. An elastic retaining ring is installed at the first eccentric shaft groove 501 for limiting and fixing the first fixed bearing 4.

[0073] At the top position of the eccentric shaft rod 5, a second eccentric shaft groove 502 is provided. An elastic retaining ring is installed at the second eccentric shaft groove 502 for limiting and fixing the first connecting bearing 601.

[0074] In this embodiment, the first fixed bearing 4 and the first connecting bearing 601 are respectively limited and fixed by elastic retaining rings, which can effectively ensure the rotational stability of the eccentric shaft rod 5 and the structural stability of the vibration device.

[0075] Specifically: At the bottom position of the second connecting rod 8, a first connecting rod groove 801 is provided. An elastic retaining ring is installed at the first connecting rod groove 801 for limiting and fixing the second connecting bearing 602.

[0076] At the top position of the second connecting rod 8, a second connecting rod groove 802 is provided. An elastic retaining ring is installed at the second connecting rod groove 802 for limiting and fixing the third connecting bearing 701.

[0077] A link boss 803 is provided on the second link 8 for positioning and installing the second connecting bearing 602 and the third connecting bearing 701.

[0078] In this embodiment, the second connecting bearing 602 and the third connecting bearing 701 are respectively limited and fixed by snap rings, which can effectively ensure the connection stability between the second link 8 and the third link 7, so as to ensure the structural stability of the vibration device.

[0079] Specifically: A switch button 11 is provided on the housing 1, and an electrical connection is established between the switch button 11 and the motor 2 for controlling the start and stop of the motor 2. Among them, holes for wire routing are opened on the housing 1.

[0080] In this embodiment, an electrical connection is established between the external power cord and the switch button 11, and an electrical connection is established between the switch button 11 and the motor 2. The start and stop of the motor 2 can be controlled through the switch button 11, which is convenient for the operator to use.

[0081] The technical solutions in the embodiments of the present application include the following beneficial effects:

[0082] In the present application, the eccentric end of the eccentric shaft rod 5 is connected to the first link 6 through the first connecting bearing 601, which can convert the rotational motion of the eccentric shaft rod 5 into the planar motion of the first link 6. At the same time, the first link 6 is connected to the third link 7 through the second link 8, which can convert the planar motion of the first link 6 into the linear motion of the third link 7. Finally, by installing and fixing the fork on the third link 7, the fork can perform a linear motion driven by the third link 7. Therefore, the operator can clamp the branch of the small berry with the fork and drive the motor 2 to swing the branch through the fork, so as to shake the small berry on the branch and drop it for collection, effectively improving the picking efficiency of the small berry.

[0083] The overall structure of the present application is simple, driven by electric energy through the DC motor 2, easy to maintain, with little environmental pollution, light overall weight, and the overall design conforms to ergonomics. It can adopt a single-handed operation mode, greatly improving the picking efficiency of small berries and the safety during use.

[0084] Finally, it should also be noted that in this text, relationships such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms including, containing or any other variants are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0085] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A small berry picking machine based on the eccentric shaft principle, characterized in that, Comprising: A housing (1), and a vibration mechanism disposed and installed in the housing (1); The housing (1) is a split housing, fixed by bolts; The vibration mechanism includes: a motor (2), a coupling (3), an eccentric shaft rod (5), a first fixed bearing (4), a first connecting rod (6), a second connecting rod (8), a first linear bearing (9), a third connecting rod (7), and a shifting rod (10); A first installation groove (101) is provided inside the housing (1), the motor (2) is disposed and installed in the first installation groove (101), and the output shaft of the motor (2) is connected to the eccentric shaft rod (5) through the coupling (3); A second installation groove (102) is provided inside the housing (1), at a position above the first installation groove (101), a first fixed bearing (4) is disposed and installed in the second installation groove (102), and the eccentric shaft rod (5) passes through the first fixed bearing (4) and is fixedly installed on the first fixed bearing (4); Both ends of the first connecting rod (6) are provided with two slot holes, and a first connecting bearing (601) and a second connecting bearing (602) are respectively disposed and installed in the slot holes at both ends; The eccentric end of the eccentric shaft rod (5) passes through the first connecting bearing (601) and is connected and installed with the first connecting rod (6); One end of the second connecting rod (8) passes through the second connecting bearing (602) and is connected and installed with the first connecting rod (6); A third connecting bearing (701) is disposed and installed at the rear end of the third connecting rod (7), and the other end of the second connecting rod (8) passes through the third connecting bearing (701) to achieve connection and installation with the third connecting rod (7); A third installation groove (103) is provided inside the housing (1), the first linear bearing (9) is disposed and installed in the third installation groove (103), and the shaft body of the third connecting rod (7) passes through the first linear bearing (9) and is fixedly installed on the first linear bearing (9); A slot hole (702) is provided at the front end of the third connecting rod (7), and the shifting rod (10) is fixedly installed in the slot hole (702) by bolts.

2. The small berry picking machine according to claim 1, wherein: The shifting rod (10) is provided with serrated tooth grooves.

3. The small berry picking machine according to claim 2, wherein: A first eccentric shaft groove (501) is provided at the bottom position of the eccentric shaft rod (5), and an elastic retaining ring is disposed and installed at the first eccentric shaft groove (501) for limiting and fixing the first fixed bearing (4); A second eccentric shaft groove (502) is provided at the top position of the eccentric shaft rod (5), and an elastic retaining ring is disposed and installed at the second eccentric shaft groove (502) for limiting and fixing the first connecting bearing (601).

4. The small berry picking machine according to claim 3, wherein: A first connecting rod groove (801) is provided at the bottom position of the second connecting rod (8), and an elastic retaining ring is disposed and installed at the first connecting rod groove (801) for limiting and fixing the second connecting bearing (602); A second link groove (802) is provided at the top position of the second link (8), and an elastic retaining ring is installed at the second link groove (802) for limiting and fixing the third connecting bearing (701); A link boss (803) is provided on the second link (8) for positioning and installing the second connecting bearing (602) and the third connecting bearing (701).

5. The small berry picker according to any one of claims 1-4, characterized in that: A switch button (11) is provided on the housing (1), and an electrical connection is established between the switch button (11) and the motor (2) for controlling the start and stop of the motor (2).