Adjustable harvesting device of fruit harvester

By improving the lifting mechanism of the fruit harvester, adopting a double linear rail and hydraulic cylinder design, combined with double support rods and an adjustable cantilever, the problems of unstable lifting and cantilever fixation in the existing technology have been solved, achieving applicability to multiple varieties and cost reduction.

CN224124692UActive Publication Date: 2026-04-17JIANGSU YUEDA HUANGHAI WALKING TRACTOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU YUEDA HUANGHAI WALKING TRACTOR CO LTD
Filing Date
2025-04-10
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The lifting mechanism of existing fruit harvesters is unstable and prone to shaking, and the cantilever distance is fixed, which cannot adapt to a variety of fruits, resulting in unstable operation and increased costs.

Method used

The lifting mechanism employs a double linear rail and hydraulic cylinder, combined with a double support rod and an adjustable cantilever design. It is connected by a right-angle conversion box and universal joint to achieve the stability of the cantilever and its applicability to various products.

Benefits of technology

It improves the lifting stability of fruit harvesters, reduces swaying, is suitable for a variety of fruits, and reduces manufacturing and operating costs.

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Abstract

The utility model relates to the technical field of blueberry harvesters, in particular to an adjustable harvesting device of a fruit harvester, which comprises a rod beating disc, a rotating shaft and a connecting rod mechanism, flexible rods are uniformly arranged below the rod beating disc and arranged on a telescopic arm capable of sliding left and right in a deep descending arm, and an upper oil cylinder is arranged on one side of the deep descending arm and drives the telescopic arm to move left and right; two supporting frames are welded to the lower portion of the deep descending arm and fixedly connected with a sliding plate, and the sliding plate is driven by a lower oil cylinder to move up and down. The lifting mechanism has the advantages that firstly, the lifting mechanism is changed into the double linear rails and the oil cylinder, so that the ascending and descending stability is ensured, and the manufacturing cost is low; the double supporting rods are arranged, the width distance of the supporting position of the cantilever is increased, stability is improved, and shaking in the vibration process is greatly reduced; and the cantilever can move left and right and is suitable for various fruits.
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Description

Technical Field

[0001] This utility model relates to the field of blueberry harvesting machinery technology, specifically an adjustable harvesting device for a fruit harvester. Background Technology

[0002] Jujubes, chestnuts, cherries, and walnuts have a long history of cultivation, and their fruits are highly sought-after and nutritious, leading to a continuous expansion of planting areas. Currently, these fruits are mainly harvested using simple tools such as manual knocking, pneumatic harvesting, and fruit-picking knives. In recent years, due to labor shortages and large-scale orchard cultivation, fruit harvesting costs have been rising year by year, and traditional manual harvesting methods can no longer meet the needs of industrialized fruit production.

[0003] For example, the invention patent CN201610581547.4 describes a fruit harvester without damage. This machine includes a support frame on a walking mechanism. The other end of the support frame's suspension beam forms a rotating pair with the upper end of a striking mechanism. The striking mechanism includes an upper swing seat, with a swing disk at the top and a striking rod disk at the bottom. The suspension beam is equipped with a vibration drive device, which is connected to the swing disk via a vibration starting mechanism. The striking rod disk is circumferentially fitted with striking rods that extend radially and then vertically. The walking mechanism also includes a cantilever located at the lower part of a column. The extended ends of the cantilever are fitted with a pair of half-umbrellas below the striking rods via an opening and closing mechanism, forming a collection umbrella. The collection umbrella is funnel-shaped with a central hole, and the lower part of the hole connects to the input end of a conveying mechanism. The output end of the conveying mechanism connects to a collection box located on the walking mechanism.

[0004] However, this mechanism has the following drawbacks: First, the lifting mechanism relies on a single-sided gear and rack, and the vibrating mechanism is cantilevered on one side, making it unstable and prone to swaying, which can cause significant damage to the gear and rack. Furthermore, it requires the motor to be locked to prevent descent under gravity, which can easily damage the motor. Second, one side of the cantilever mechanism is heavier, making it prone to tilting, which can cause the gear and rack to mesh and jam, preventing the lifting mechanism from operating properly. Third, the cantilever distance is fixed and cannot be adjusted; different varieties require different cantilever replacements, making it unsuitable for a wide variety of fruits. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an adjustable harvesting device for a fruit harvester, addressing the shortcomings of the existing technology.

[0006] The technical solution of this utility model includes a right-angle conversion box 3, a racket handle plate 15, a rotating shaft 12, an active connecting rod 9, an intermediate connecting rod 10, and a passive connecting rod 11. Flexible rods 16 are evenly arranged below the racket handle plate 15, and are connected to the rotating shaft 12 at the top and restricted from vertical movement by a flange 13. The two ends of the intermediate connecting rod 10 are connected to the active connecting rod 9 and the passive connecting rod 11 respectively via pins, and the other ends of the active connecting rod 9 and the passive connecting rod 11 are connected to the right-angle conversion box 3 and the rotating shaft 12 respectively. The racket handle plate 15 is characterized by being positioned in a position that allows for… The retractable arm 14 slides left and right inside the deep lowering arm 8, and an upper hydraulic cylinder 18 is provided on one side of the deep lowering arm 8. The front end of the upper hydraulic cylinder 18 is connected to the connecting block 17 on the retractable arm 14 by bolts. Two support frames 7 are welded below the deep lowering arm 8, and the support frames 7 are welded to the slide plate 6 that can move along the direction of the linear rail 2. Four sliders 5 are provided between the slide plate 6 and the linear rail 2 and are symmetrically arranged on both sides. The linear rail 2 is provided on the fixed bracket 1, and a lower hydraulic cylinder 19 is provided on one side of the fixed bracket 1 and is connected to the connecting block 20 on the slide plate 6 by bolts.

[0007] A right-angle conversion box 3 is provided above the deep-drop arm 8 and below the fixed bracket 1.

[0008] Each right-angle conversion box 3 is connected by a universal joint 4, and the universal joint 4 is also equipped with a matching inner telescopic rod 401 and an outer telescopic rod 402.

[0009] The inner telescopic rod 401 is a hexagonal rod, and the outer telescopic rod 402 has a hexagonal hole that mates with the inner telescopic rod 401.

[0010] Compared with the prior art, this utility model has the following advantages: First, the lifting mechanism is changed to a double linear rail and a hydraulic cylinder, which ensures the stability of rising and falling and has low manufacturing cost; second, it is equipped with double support rods and the width of the cantilever support is increased, which improves stability and greatly reduces the shaking during the tapping; third, the cantilever can move left and right, which is suitable for a variety of fruits. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] In the diagram: 1. Fixed bracket; 2. Linear rail; 3. Right-angle conversion box; 4. Universal joint; 401. Inner telescopic rod; 402. Outer telescopic rod; 5. Slider; 6. Slide plate; 7. Support frame; 8. Deep-drop arm; 9. Active connecting rod; 10. Intermediate connecting rod; 11. Passive connecting rod; 12. Rotary shaft; 13. Flange; 14. Retractable arm; 15. Paddle plate; 16. Flexible rod; 17. Connecting block one; 18. Upper cylinder; 19. Lower cylinder; 20. Connecting block two. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings.

[0014] This utility model includes a right-angle conversion box 3, a paddle plate 15, a rotating shaft 12, an active connecting rod 9, an intermediate connecting rod 10, and a passive connecting rod 11. Flexible rods 16 are evenly arranged below the paddle plate 15 and connected to the rotating shaft 12 at the top and restricted from vertical movement by a flange 13. The two ends of the intermediate connecting rod 10 are connected to the active connecting rod 9 and the passive connecting rod 11 respectively by pins. The other ends of the active connecting rod 9 and the passive connecting rod 11 are connected to the right-angle conversion box 3 and the rotating shaft 12 respectively. When power is transmitted to the active connecting rod 9, it drives the passive connecting rod 11 and the paddle plate 15 to rotate.

[0015] The racket handle 15 is mounted on the retractable arm 14, which can slide left and right within the deep lowering arm 8. An upper hydraulic cylinder 18 is provided on one side of the deep lowering arm 8. The front end of the upper hydraulic cylinder 18 is connected to the connecting block 17 on the retractable arm 14 by bolts. The extension and retraction of the upper hydraulic cylinder 18 can adjust the extension distance of the racket handle 15, making it suitable for various environments.

[0016] Two support frames 7 are welded below the deep-drop arm 8, and the support frames 7 are welded to the slide plate 6 that can move along the direction of the linear rail 2. Four sliders 5 are provided between the slide plate 6 and the linear rail 2 and are symmetrically arranged on both sides. The linear rail 2 is set on the fixed bracket 1, and a lower hydraulic cylinder 19 is provided on one side of the fixed bracket 1 and is connected to the connecting block 20 on the slide plate 6 by bolts. The extension and retraction of the lower hydraulic cylinder 19 drives the deep-drop arm 8 and the slap plate 15 to move up and down together.

[0017] Meanwhile, right-angle conversion boxes 3 are provided above the deep-descent arm 8 and below the fixed bracket 1, and the three right-angle conversion boxes 3 are connected in sequence by universal joints 4. The universal joints 4 are also connected to the matching inner telescopic rod 401 and outer telescopic rod 402. The inner telescopic rod 401 is a hexagonal rod, and the outer telescopic rod 402 has a hexagonal hole that mates with the inner telescopic rod 401. This ensures that power can still be transmitted when the positions of the deep-descent arm 8 and the retractable arm 14 change. The other end of the right-angle conversion box 3 on the fixed bracket 1 is connected to the power source, and the power is transmitted in sequence to the right-angle conversion box 3 on the retractable arm 14, which finally drives the sparring disc 15 to rotate.

Claims

1. An adjustable harvesting device for a fruit harvester, comprising a right-angle conversion box (3), a throttle plate (15), a rotating shaft (12), an active connecting rod (9), an intermediate connecting rod (10), and a passive connecting rod (11), wherein flexible rods (16) are evenly arranged below the throttle plate (15), and are connected to the rotating shaft (12) above and restricted from vertical movement by a flange (13); the two ends of the intermediate connecting rod (10) are respectively connected to the active connecting rod (9) and the passive connecting rod (11) by pins, and the other ends of the active connecting rod (9) and the passive connecting rod (11) are respectively connected to the right-angle conversion box (3) and the rotating shaft (12), characterized in that: The aforementioned slapping plate (15) is mounted on a retractable arm (14) that can slide left and right within the deep lowering arm (8), and an upper hydraulic cylinder (18) is provided on one side of the deep lowering arm (8). The front end of the upper hydraulic cylinder (18) is connected to the connecting block one (17) on the retractable arm (14) by bolts. Two support frames (7) are welded below the deep lowering arm (8), and the support frames (7) are all welded to a sliding plate (6) that can move along the direction of the linear rail (2). Four sliders (5) are provided between the sliding plate (6) and the linear rail (2) and are symmetrically arranged on both sides. The linear rail (2) is mounted on a fixed bracket (1), and a lower hydraulic cylinder (19) is provided on one side of the fixed bracket (1) and is connected to the connecting block two (20) on the sliding plate (6) by bolts.

2. An adjustable harvesting device for a fruit harvester as claimed in claim 1, characterized in that: A right-angle conversion box (3) is provided above the deep-drop arm (8) and below the fixed bracket (1).

3. An adjustable harvesting device for a fruit harvester according to claim 1 or 2, characterized in that: Each right-angle conversion box (3) is connected by a universal joint (4), and the universal joints (4) are also equipped with matching inner telescopic rods (401) and outer telescopic rods (402).

4. An adjustable harvesting device for a fruit harvester as claimed in claim 3, wherein: The inner telescopic rod (401) is a hexagonal rod, and the outer telescopic rod (402) has a hexagonal hole that mates with the inner telescopic rod (401).

Citation Information

Patent Citations

  • Fruit lossless harvester

    CN105993392A