Inertia vibration device for small berry vibration harvesting and harvester

Abstract

The invention discloses an inertia vibration device for small berry vibration harvesting and a harvester. The inertia vibration device comprises a vibration power assembly, a vibration shaft assembly and a vibration disc assembly. The vibration power assembly comprises a belt brake, and the belt brake is composed of a brake belt, a balance rod, damping rubber, a connecting rod and an elastic element. The brake belt is sleeved on the brake disc, and the balance rod is rotatably connected with two ends of the brake belt. A mounting disc is arranged in the middle of the balance rod, the mounting disc and the balance rod are fixed together, and a first stop block is arranged on the inner wall of the mounting disc; a disc is arranged at one end of the connecting rod, a second check block is arranged at the bottom of the disc, and a first rotating shaft is fixed to the center of the disc and rotationally matched with the mounting disc. A cavity is formed by the disc and the mounting disc, and two pieces of damping rubber are arranged in the cavity; the two damping rubbers are symmetrically placed in the cavity; the other end of the connecting rod penetrates through an elastic element and is provided with a thread which is matched with a nut.

Description

Technical Field

[0001] This invention belongs to the field of small berry harvesting technology, and particularly relates to an inertial vibration device and harvester for small berry vibration harvesting. Background Technology

[0002] Blueberries, currants, sea buckthorn, honeysuckle berries, and black chokeberries are common shrubby small berries. These fruits are characterized by a short ripening period, fragility, and small size, making harvesting them challenging. To achieve mechanized harvesting of these small berries, various mechanized harvesting devices have been disclosed in existing technologies. Currently, many automatic harvesting devices disclosed in patents employ vibratory harvesting devices, as detailed in patents CN202111667800.5 and CN202111663197.3. The inertial vibration device used in the vibratory harvesting device includes a drive assembly, coupling, power conversion shaft assembly, reducer housing, power output shaft assembly, first eccentric wheel assembly, second eccentric wheel assembly, and frame. The drive assembly is connected to the power output shaft assembly via a coupling for power transmission. The power output shaft assembly is mounted on the reducer housing and frame via bearings. The frame is fixedly connected to the reducer housing. A transmission device is installed inside the reducer housing. The power output shaft assembly drives two symmetrically mounted eccentric wheel assemblies, the first and second eccentric wheel assemblies, to rotate through the transmission device. Simultaneously, the reducer housing and frame, as power output components, reciprocate under the rotational torque generated by the first and second eccentric wheel assemblies. The power output shaft assembly keeps the drive assembly stationary. The assembly also includes a band brake assembly, which includes an elastic element and a brake band. The brake band wraps around the brake disc, and both ends of the brake band pass through the elastic element and are fixed to the brake mounting bracket assembly by nuts. The maximum rotational speed of the entire device can be controlled by adjusting the tension (i.e., preload) of the brake band.

[0003] However, the aforementioned inertial vibration device has the following problems: The aforementioned inertial vibration device has a two-layer structure consisting of a reducer housing and a frame, resulting in a large overall size, complex structure, and inconvenient installation and maintenance. The brake band passes through elastic elements at both ends and is fixed to the band brake mounting bracket by nuts. It is difficult to ensure that the initial preload of the elastic elements at both ends is the same, leading to uneven friction on one side initially, affecting the rotational and reciprocating motion of the inertial vibration device. Furthermore, this method is limited by the elastic coefficient of the elastic elements, resulting in a small swing amplitude of the brake band, unresponsiveness, and unstable damping force provided by the brake band to the brake disc.

[0004] Purpose of the invention The purpose of this invention is to address the above-mentioned problems and overcome the shortcomings of the prior art by providing an inertial vibration device and harvester for vibratory harvesting of small berries.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: In a first aspect, the present invention discloses an inertial vibration device for vibratory harvesting of small berries, comprising a vibration power assembly, a vibration shaft assembly, and a vibration disc assembly; the vibration power assembly is connected to the vibration shaft assembly, and the vibration disc assembly is mounted on the vibration shaft assembly; the vibration power assembly includes a band brake, which consists of a brake band, a balance bar, damping rubber, a connecting rod, and an elastic element; the brake band is fitted onto the brake disc, and the balance bar is rotatably connected to both ends of the brake band; a mounting plate is provided in the middle of the balance bar, and the mounting plate is fixed together with the balance bar, with a first stop block provided on the inner wall of the mounting plate; a disc is provided at one end of the connecting rod, and a second stop block is provided at the bottom of the disc, with a first rotating shaft fixed at the center of the disc, the first rotating shaft rotatingly engaging with the mounting plate; the disc and the mounting plate form a cavity, and two damping rubbers are provided in the cavity; the two damping rubbers are symmetrically placed in the cavity; the other end of the connecting rod passes through an elastic element and is threaded, with the thread engaging with a nut.

[0006] As a further technical solution, the vibration power also includes a drive assembly, a power conversion shaft assembly, a power output shaft assembly, a first eccentric wheel assembly, a second eccentric wheel assembly, and a vibration device housing; the drive assembly is connected to the power output shaft assembly via a coupling for power transmission, the power output shaft assembly passes through the power conversion shaft assembly and is mounted on the vibration device housing via bearings, inside the vibration device housing, the first eccentric wheel assembly and the second eccentric wheel assembly, which are symmetrically mounted inside the vibration device housing, are driven to rotate via a synchronous belt drive device, and a brake disc is provided on the vibration device housing, with a belt brake fitted on the brake disc.

[0007] As a further technical solution, the mounting plate is provided with a mounting hole in the middle, and the mounting hole is rotatably engaged with the first rotating shaft.

[0008] As a further technical solution, the balance bar is provided with a second rotating shaft at both ends. The balance bar is fixedly connected to the second rotating shaft or integrally formed. The second rotating shaft is used to install the brake band. The brake band is rotatably connected to the second rotating shaft, so that the brake band drives the balance bar to reciprocate around the first rotating shaft in the middle of the mounting plate.

[0009] As a further technical solution, the vibration device housing has weight-reducing holes on the front, back, left, and right sides.

[0010] Secondly, the present invention also provides a harvester that employs the inertial vibration device for harvesting small berries described above.

[0011] As a further technical solution, the harvester includes two inertial vibration devices, which are staggered front to back and each is mounted on a mounting frame, and the included angle between the two mounting frames is adjustable.

[0012] As a further technical solution, the harvester also includes a transmission device and a collection device.

[0013] As a further technical solution, the harvester also includes a self-propelled chassis, and the transmission device, collection device, and inertial vibration device are all installed on the Zidu chassis.

[0014] The beneficial effects of this invention are: This invention integrates the reducer housing and frame of the inertial vibration device into one unit, significantly reducing the device's volume, effectively decreasing the width of the harvester, greatly reducing the device's weight, and improving operational efficiency. The change to a band brake makes the damping force of the brake band on the brake disc more uniform and stable. The reciprocating oscillation of the brake band is organically combined with the rotational reciprocating motion of the inertial vibration device, consistently providing the vibration device with an opposite damping force. This effectively avoids the problem of inconsistent reciprocating motion caused by different preloads at both ends during preload. Furthermore, adjustment is more convenient and sensitive. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the vibration device of the present invention; Figure 2 This is a cross-sectional schematic diagram of the vibration power device of the present invention; Figure 3 This is a schematic diagram of the vibration power device of the present invention; Figure 4 This is a schematic diagram of the band brake of the present invention; Figure 5 This is an exploded schematic diagram of the belt brake of the present invention; Figure 6 This is a schematic diagram of the belt brake connecting rod of the present invention; Figure 7 This is a schematic diagram showing the installation of two inertial vibration devices on a harvester; In the picture: 1. Vibration power assembly; 2. Vibration shaft assembly; 3. Vibration disc assembly; 4. Mounting frame; 1-1 Drive assembly, 1-2 Coupling, 1-3 Power conversion shaft assembly, 1-4 Power output shaft assembly, 1-5 First eccentric wheel assembly, 1-6 Second eccentric wheel assembly, 1-7 Housing, 1-8 Band brake; 1-7a brake disc, 1-8a Brake band, 1-8b Balance bar, 1-8c Damping rubber, 1-8d Connecting rod, 1-8e Elastic element; 1-8b-1 Mounting plate, 1-8b-2 First stop block, 1-8b-3 First pivot, 1-8b-4 Second pivot; 1-8d-1 disc, 1-8d-2 second stop block, 1-8d-3 circular hole; 1-8d-4 thread, 1-8d-5 nut; Detailed Implementation It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. For ease of description, the words "up," "down," "left," and "right" appearing in this invention only indicate that they are consistent with the up, down, left, and right directions of the accompanying drawings themselves. They do not limit the structure and are merely for the purpose of facilitating the description of this invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0017] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, this embodiment discloses an inertial vibration device for harvesting small berries, including a vibration power assembly 1, a vibration shaft assembly 2, and a vibration disk assembly 3; the vibration power device 1 is connected to the vibration shaft assembly 2, and a plurality of vibration disk assemblies 3 are installed on the vibration shaft assembly 2; the structure of the vibration shaft assembly 2 and the vibration disk assembly 3 is the same as that of the prior art, and will not be described in detail here; the structure of the vibration power assembly 1 is mainly described below. The vibration power assembly 1 in this embodiment includes a drive assembly 1-1, a coupling 1-2, a power conversion shaft assembly 1-3, a power output shaft assembly 1-4, a first eccentric wheel assembly 1-5, a second eccentric wheel assembly 1-6, a vibration device housing 1-7, and a band brake 1-8. The drive assembly 1-1 is connected to the power output shaft assembly 1-4 via the coupling 1-2 for power transmission. The power output shaft assembly 1-4 passes through the power conversion shaft assembly 1-3 and is mounted on the vibration device housing 1-7 via bearings. Inside the vibration device housing 1-7, the first eccentric wheel assembly 1-5 and the second eccentric wheel assembly 1-6, which are symmetrically mounted inside the vibration device housing 1-7, are driven to rotate via a synchronous belt drive. The vibration device housing 1-7 is equipped with a brake disc 1-7a, and a band brake 1-8 is fitted onto the brake disc 1-7a. At the same time, the vibration device housing 1-7, as a power output component, performs reciprocating rotation under the rotational torque generated by the first eccentric wheel assembly 1-5 and the second eccentric wheel assembly 1-6. The band brake 1-8 always provides a reverse damping force to the vibration device housing 1-7. By adjusting the preload and elastic element of the band brake 1-8, the amplitude and frequency of the reciprocating rotation of the vibration device housing can be adjusted. The power conversion shaft assembly 1-3 keeps the drive assembly stationary.

[0018] Furthermore, the housings 1-7 of the vibration device are connected by screws, which facilitates disassembly, maintenance, and adjustment of the counterweight. Furthermore, the vibration device housing 1-7 has weight-reducing holes on the front, back, left, and right sides, which not only reduces the weight of the vibration device but also facilitates observation of the device's working status.

[0019] Furthermore, in this embodiment, the band brake 1-8 is composed of a brake band 1-8a, a balance bar 1-8b, a damping rubber 1-8c, a connecting rod 1-8d, and an elastic element 1-8e. The brake band 1-8a is fitted onto the brake disc 1-7a of the vibration device housing, always providing a reverse damping force to the vibration device housing. The balance bar 1-8b is rotatably connected to both ends of the brake band 1-8a. A mounting plate 1-8b-1 is provided in the middle of the balance bar 1-8b, and the mounting plate 1-8b-1 is fixed together with the balance bar 1-8b. A first stop block 1-8b-2 is provided on the inner wall of the mounting plate 1-8b-1. When the mounting plate 1-8b-1 swings back and forth with the brake band 1-8a, the first stop block 1-8b-2 applies pressure to the rubber block 1-8c. During the reciprocating swing of the brake band, the connecting rod 1-8d is stationary. At this time, the second stop block 1-8d-2 on the connecting rod 1-8d will provide resistance to the damping rubber 1-8c, preventing it from continuing to swing. The force of the balance bar swinging is generated by the friction between the brake band and the brake disc.

[0020] One end of the connecting rod 1-8d is provided with a disc 1-8d-1, the bottom of the disc 1-8d-1 is provided with a second stop 1-8d-2, and the center is provided with a rotating shaft 1-8b-3; the rotating shaft 1-8b-3 cooperates with the mounting plate 1-8b-1; the function of the first stop 1-8b-2 is to provide pressure, and the function of the second stop 1-8d-2 is to provide resistance. In order to ensure that the brake band provides the same friction force during the reciprocating rotation of the vibration device and to ensure the same reciprocating swing of the balance bar, the two stops are arranged in a straight line, dividing the mounting plate into two symmetrical areas of the same size, and symmetrically placing two identical damping rubbers 1-8c.

[0021] The disc 1-8d-1 and the mounting disc 1-8b-1 form a cavity, and two damping rubbers 1-8c are disposed in the cavity; the two damping rubbers 1-8c are placed symmetrically in the cavity. The other end of the connecting rod 1-8d passes through an elastic element 1-8e and is provided with a thread 1-8d-4; the thread 1-8d-4 is engaged with the nut 1-8d-5.

[0022] Furthermore, the mounting plate 1-8b-1 and the balance bar 1-8b can be integrally formed, and when the balance bar 1-8b rotates, the mounting plate 1-8b-1 also rotates together; Furthermore, the mounting plate has a mounting hole in the middle, which mates with the first rotating shaft 1-8b-3. The first rotating shaft 1-8b-3 is fixed at the center of the disc 1-8d-1 of the connecting rod 1-8d. The first rotating shaft 1-8b-3 serves as the rotation center of the brake band 1-8a, and the brake band 1-8a rotates around the first rotating shaft 1-8b-3 together with the balance bar 1-8b. Furthermore, the balance bar is also provided with second rotating shafts 1-8b-4 at both ends. The balance bar is fixedly connected to the second rotating shafts 1-8b-4 or integrally formed. The second rotating shafts 1-8b-4 are used to install the brake band 1-8a. The brake band 1-8a and the second rotating shafts 1-8b-4 are rotatably connected, so that the brake band 1-8a drives the balance bar 1-8b to reciprocate around the first rotating shaft 1-8b-3 in the middle of the mounting plate.

[0023] Furthermore, one end of the connecting rod 1-8d is provided with a disc 1-8d-1, and one end of the disc 1-8d-1 is provided with a second stop 1-8d-2. A circular hole 1-8d-3 is provided in the middle of the disc 1-8d-1, and the circular hole 1-8d-3 is fixed together with the aforementioned first rotating shaft 1-8b-3. The disc 1-8d-1 cooperates with the mounting plate 1-8b-1 of the balance bar to provide resistance to the damping rubber in the mounting plate. Whenever the vibration device housing 1-7 drives the brake band 1-8a to deflect to one side, the damping rubber 1-8c will provide resistance to the brake band 1-8a through the mounting plate 1-8b-1, preventing it from deflecting excessively with the vibration device housing. At this time, the brake band 1-8a will also provide a large resistance to the brake disc 1-7a, causing the vibration device housing 1-7 to gradually stop deflecting until it begins to deflect to the other side. This process repeats continuously.

[0024] Furthermore, the other end of the connecting rod 1-8d is provided with a thread 1-8d-4. By adjusting the tightness of the adjusting nut 1-8d-5, the tightness of the elastic element 1-8e can be adjusted, thereby adjusting the preload of the brake band 1-8a on the brake disc 1-7a. This is used to adjust the friction between the brake band 1-8a and the brake disc 1-7a, thereby adjusting the amplitude and frequency of the reciprocating rotation of the vibration device housing. Furthermore, based on the aforementioned inertial vibration device for small berry vibration harvesting, this embodiment also discloses a harvester that includes the aforementioned inertial vibration device for small berry vibration harvesting; since the harvester employs the inertial vibration device described above, it also possesses all the advantages described above.

[0025] Furthermore, the harvester in this embodiment, such as Figure 7 As shown, it includes two inertial vibration devices, which are staggered front to back and each mounted on a mounting frame 4. The included angle between the two mounting frames 4 is adjustable. The two inertial vibration devices are staggered to form a deformed "V"-shaped harvesting area. This arrangement retains the advantages of the "V"-shaped layout while significantly reducing the overall width of the machine. It also avoids the problem of interference between the vibration fingers during angle adjustment, which is necessary in a perfectly symmetrical arrangement, requiring the replacement of fingers of different lengths. This ensures that the effective vibration area remains unchanged regardless of the angle of operation, and the operating effect is not affected by angle adjustments. It also increases the contact area between the vibrating shrub harvesting device and the shrub, significantly improving the operating effect.

[0026] As a further technical solution, the harvester also includes a transmission device and a collection device.

[0027] As a further technical solution, the harvester also includes a self-propelled chassis, and the transmission device, collection device, and inertial vibration device are all installed on the Zidu chassis.

[0028] Finally, it should be noted that relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An inertial vibration device for harvesting small berries, comprising a vibration power assembly, a vibration shaft assembly, and a vibration disk assembly; the vibration power assembly is connected to the vibration shaft assembly, and the vibration disk assembly is mounted on the vibration shaft assembly; the vibration power assembly includes a band brake, characterized in that, The band brake consists of a brake band, a balance bar, damping rubber, a connecting rod, and an elastic element. The brake band is fitted onto the brake disc, and the balance bar is rotatably connected to both ends of the brake band. A mounting plate is located in the middle of the balance bar, and the mounting plate is fixed to the balance bar. A first stop is provided on the inner wall of the mounting plate. One end of the connecting rod is provided with a disc, and a second stop is provided at the bottom of the disc. A first rotating shaft is fixed at the center of the disc, and the first rotating shaft is rotatably engaged with the mounting plate. The disc and the mounting plate form a cavity, and two damping rubber pieces are placed inside the cavity. The two damping rubber pieces are symmetrically placed inside the cavity. The other end of the connecting rod passes through an elastic element and is threaded, with the thread engaging with a nut.

2. The inertial vibration device for vibratory harvesting of small berries as described in claim 1, characterized in that, The vibration power also includes a drive assembly, a power conversion shaft assembly, a power output shaft assembly, a first eccentric wheel assembly, a second eccentric wheel assembly, and a vibration device housing. The drive assembly is connected to the power output shaft assembly via a coupling for power transmission. The power output shaft assembly passes through the power conversion shaft assembly and is mounted on the vibration device housing via bearings. Inside the vibration device housing, a synchronous belt drive device drives the two symmetrically mounted first and second eccentric wheel assemblies to rotate. The vibration device housing is equipped with a brake disc, and a belt brake is fitted onto the brake disc.

3. The inertial vibration device for vibratory harvesting of small berries as described in claim 1, characterized in that, The mounting plate has a mounting hole in the middle, which mates with the first rotating shaft.

4. The inertial vibration device for vibratory harvesting of small berries as described in claim 1, characterized in that, The balance bar has a second pivot at both ends. The balance bar is fixedly connected to the second pivot or is integrally formed. The second pivot is used to install the brake band. The brake band is rotatably connected to the second pivot.

5. The inertial vibration device for vibratory harvesting of small berries as described in claim 1, characterized in that, The vibration device housing has weight-reducing holes on the front, back, left, and right sides.

6. The inertial vibration device for vibratory harvesting of small berries as described in claim 1, characterized in that, The second stop block and the second stop block are arranged vertically opposite each other.

7. A harvester, characterized in that, Including the inertial vibration device for vibratory harvesting of small berries as described in any one of claims 1-6.

8. The harvester as described in claim 7, characterized in that, It includes two inertial vibration devices, which are staggered front to back and each is mounted on a mounting frame. The included angle between the two mounting frames is adjustable.

9. The harvester as described in claim 8, characterized in that, It also includes transmission devices and collection devices.

10. The harvester as described in claim 7, characterized in that, It also includes a self-propelled chassis, and the transmission device, collection device, and inertial vibration device are all installed on the Zidu chassis.

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