Pepper harvesting device

By designing a chili harvesting device with a shearing mechanism and a storage hopper, the problems of unstable clamping and low efficiency in existing technologies have been solved, achieving efficient and low-damage chili harvesting.

CN223802602UActive Publication Date: 2026-01-16INNER MONGOLIA UNIV OF SCI & TECH
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Patent Information

Application Number
CN202522637584.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-01-16
Estimated Expiration
2035-12-12

AI Technical Summary

Technical Problem

Existing chili-picking robots are prone to instability when gripping chili fruits of different sizes, and have low picking efficiency. The robotic arm also needs to transport the fruits over long distances to the hopper, resulting in low efficiency.

Method used

Design a chili harvesting device that includes a cutting mechanism and a storage hopper. The device uses an eccentric wheel assembly to drive the clamps and shearing assemblies to cut the chili stems and drop the fruits into the storage hopper. Automatic unloading is achieved by tilting the flaps through a servo motor, reducing the travel distance of the robotic arm.

Benefits of technology

It improved the efficiency of chili pepper harvesting, reduced fruit damage, saved harvesting time, and enabled the temporary storage and efficient harvesting of multiple fruits.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pepper picking, and particularly discloses a pepper harvesting device. Comprising a shearing mechanism and a storage hopper, the storage hopper is fixedly installed below the shearing mechanism, the top of the storage hopper is open, an inclined turning plate is hinged to the bottom of the storage hopper, and the free end of the inclined turning plate movably abuts against the side wall of the storage hopper; by arranging the storage hopper, the peppers sheared by the shearing mechanism can be temporarily stored, and the picking efficiency is high; the clamp assembly of the shearing mechanism clamps the stem part of the pepper fruit, direct clamping of the pepper fruit is avoided, and the damage rate of the pepper fruit in the picking process is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a pepper picking technical field especially relates to a kind of pepper harvesting device. BACKGROUND

[0002] Mature pepper stem is easily separated from pepper fruit, and traditional manual harvesting needs to use scissors and other tools to cut off the fruit stem, since the number of mature pepper fruits is relatively large, and the pepper plants are usually short, long-time bending operation is needed, and the labor of manual harvesting is very large.

[0003] Therefore, it has practical significance and great application prospect to use mechanized harvesting, and in the prior art, for example, a kind of pepper picking manipulator based on visual identification and its end executing mechanism with publication number CN116276976A discloses a kind of pepper picking manipulator, wherein the root stem cutting assembly is used to cut off the pepper stem, and the soft clamping jaw is used to clamp the pepper fruit, during picking operation, the first electric cylinder drives the second rotating frame to rotate, the arc-shaped soft pad of the soft clamping jaw clamps the pepper, the second electric cylinder drives the root stem cutting assembly to cut off the rod and rotate, the blade of the root stem cutting assembly cuts off the pepper root stem, the clamping force and the opening degree of the soft clamping jaw are related to the stroke of the electric cylinder, and the fixed stroke of the electric cylinder can only provide the opening degree of a kind of soft clamping jaw, while the pepper fruits have different thicknesses, when clamping the pepper fruits too thin, it is easy to clamp unstable, and the fruit is easy to separate from the clamping jaw during transfer, when clamping the pepper fruits too thick, it is easy to clamp too tightly and injure the fruit, and after the clamping jaw completes cutting action, it needs to be moved to the remote material bin by the mechanical arm for storage, the initial position of the pepper during transfer is far away from the material bin of the picking device, so the stroke is long, and therefore the picking efficiency is low. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of pepper harvesting device to solve the problems existing in prior art.

[0005] The utility model is implemented by the following technical solutions: a kind of pepper harvesting device, including cutting mechanism and storage hopper, cutting mechanism lower fixed installation has storage hopper, storage hopper top opening is provided, the bottom of storage hopper is hingedly connected with inclined flap, the free end of inclined flap is movably connected with the side wall of storage hopper, the side wall of storage hopper is fixedly installed with steering engine on the side of hinged connection with inclined flap, first gear is fixedly arranged on the hinged shaft of the side wall of storage hopper and inclined flap, second gear is fixedly arranged on the output shaft of steering engine, and first gear is meshingly connected with second gear.

[0006] Further, the shearing mechanism comprises a shell, a clamp assembly, a shearing assembly, a driving motor, an eccentric wheel set and an eccentric wheel outer frame, the driving motor is fixedly installed on the shell, the eccentric wheel set is fixedly installed on an output shaft of the driving motor, the eccentric wheel set comprises two coaxially connected eccentric wheels, the eccentric wheel outer frames are movably sleeved on outer edges of the two eccentric wheels respectively, the clamp assembly and the shearing assembly are sequentially and fixedly arranged on the shell in front of the driving motor from top to bottom, the eccentric wheel outer frame comprises a bearing ring and a connecting rod fixed to an outer ring of the bearing ring, and the connecting rods of the two eccentric wheel outer frames are hingedly connected with sliding blocks of the clamp assembly and the shearing assembly respectively.

[0007] Further, the clamp assembly comprises a clamp and a guide frame, a sliding block is slidably installed on a top plate of the guide frame, the sliding block is fixedly connected with a hinged shaft of the clamp, a sliding pin is fixedly arranged at a tail of each handle of the clamp, and a first sliding groove is formed in a bottom plate of the guide frame, and the sliding pin is slidably arranged in the first sliding groove.

[0008] Further, the shearing assembly comprises a shearing clamp and a fixed pin, a sliding block is slidably installed at a bottom of a bottom plate of the guide frame, the sliding block is fixedly connected with a hinged shaft of the shearing clamp, two fixed pins are fixedly installed at the bottom of the bottom plate of the guide frame, and a second sliding groove is formed in a tail of a handle of the shearing clamp, and the fixed pins are slidably arranged in the second sliding groove.

[0009] Further, the two eccentric wheels of the eccentric wheel set are arranged in a staggered mode, and an angle α of the two eccentric wheels in the staggered mode is 30-90°.

[0010] The advantages of the utility model are as follows:

[0011] 1, the shearing mechanism can cut the pepper stem, the cut pepper fruit falls into the storage hopper below, the storage hopper can temporarily store multiple peppers, the mechanical arm only needs to move in the vicinity of the pepper plant at a small amplitude to pick multiple peppers at a time, and after waiting for the storage hopper to be filled, the peppers are uniformly sent to the large storage box, thereby solving the problem that in the prior art, a long moving path is needed to put the peppers back into the storage box after picking each pepper fruit, saving the picking time and improving the picking efficiency.

[0012] 2, the shearing mechanism is composed of a clamp assembly and a shearing assembly, the clamp assembly only clamps the pepper stem during picking, the mechanical structure does not directly clamp the pepper fruit, avoiding extrusion on the pepper fruit, reducing the damage rate of the pepper fruit and reducing the waste in the picking process. DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model.

[0014] Figure 2 It is an explosion view of the structure of the utility model.

[0015] Figure 3 It is a structural diagram of eccentric wheel group.

[0016] Figure 4 It is an exploded view of the shearing tongs assembly.

[0017] Figure 5 It is a partial structural sectional view of the clamp assembly.

[0018] Figure 6 It is a partial structural exploded view of the clamp assembly.

[0019] In the figure: shearing mechanism 1, storage hopper 2, inclined flap 201, rudder 202, first gear 203, second gear 204, shell 101, clamp assembly 102, shearing tongs assembly 103, drive motor 104, eccentric wheel group 105, eccentric wheel outer frame 106, sliding block 107, clamp 1021, guide frame 1022, sliding pin 1023, first sliding groove 1024, shearing tongs 1031, fixed pin 1032, second sliding groove 1033, eccentric wheel 1051, bearing ring 1061, connecting rod 1062. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] As shown in Figure 1 A pepper harvesting device, comprising a shearing mechanism 1 and a storage hopper 2, the storage hopper 2 is fixedly installed below the shearing mechanism 1, the top of the storage hopper 2 is provided with an opening, and the bottom of the storage hopper 2 is hingedly connected with an inclined flap 201, i.e. Figure 1The bottom plate of the storage hopper 2 is an inclined flip plate 201 arranged in an inclined manner, the free end of the inclined flip plate 201 is in movable abutment with the side wall of the storage hopper 2, a steering wheel 202 is fixedly installed on the side wall on the side of the storage hopper 2 hinged to the inclined flip plate 201, a first gear 203 is fixedly arranged on the hinge shaft of the inclined flip plate 201 hinged to the side wall of the storage hopper 2, the hinge shaft is fixedly connected with the inclined flip plate 201, a second gear 204 is fixedly arranged on the output shaft of the steering wheel 202, and the first gear 203 is in meshing transmission connection with the second gear 204. The steering wheel 202 rotates to drive the inclined flip plate 201 to rotate around the hinge shaft to complete the opening and closing action; during operation, the mechanical arm moves the shearing mechanism 1 and the storage hopper 2 to a specified position, at this time, the shearing mechanism 1 is opposite to the pepper fruits, and the storage hopper 2 below is located directly below the pepper fruits, the pepper peduncle is sheared by the shearing mechanism 1, and the pepper fruits can fall into the storage hopper 2, a plurality of pepper fruits can be stored in the storage hopper 2, and when the storage hopper 2 is full, it is sent to a large hopper, and the bottom inclined flip plate 201 is opened to unload, so that the effect of multiple picking can be achieved, and the pepper fruits do not need to be repeatedly sent back to the large hopper, the travel of the mechanical arm is saved, and the picking efficiency is improved.

[0022] As shown in Figure 2 , Figure 3 : the shearing mechanism 1 comprises an outer shell 101, a clamp assembly 102, a shearing assembly 103, a driving motor 104, an eccentric wheel set 105 and an eccentric wheel outer frame 106, the driving motor 104 is fixedly installed on the outer shell 101, the eccentric wheel set 105 is fixedly installed on the output shaft of the driving motor 104, the eccentric wheel set 105 comprises two coaxially connected eccentric wheels 1051, the two eccentric wheels 1051 of the eccentric wheel set 105 are arranged in a staggered manner, and the angle α of the two eccentric wheels 1051 arranged in a staggered manner is 30°-90°. The eccentric wheel outer frame 106 is movably sleeved on the outer edges of the two eccentric wheels 1051, the clamp assembly 102 and the shearing assembly 103 are sequentially fixedly arranged on the outer shell 101 from top to bottom in front of the driving motor 104, the eccentric wheel outer frame 106 comprises a bearing ring 1061 and a connecting rod 1062 fixed to the outer ring of the bearing ring 1061, and the connecting rods 1062 of the two eccentric wheel outer frames 106 are hingedly connected with the sliding blocks 107 of the clamp assembly 102 and the shearing assembly 103 respectively. When the driving motor 104 rotates, the two eccentric wheels 1051 of the eccentric wheel set 105 rotate, the eccentric wheel outer frame 106 sleeved on the eccentric wheels 1051 oscillates, and the sliding blocks 107 on the connecting rods 1062 oscillate to move back and forth.

[0023] As shown in Figure 4 , Figure 5As shown in the figure: the clamp assembly 102 includes a clamp 1021 and a guide frame 1022, a sliding block 107 is slidingly installed on the top plate of the guide frame 1022, the sliding block 107 is fixedly connected with the hinge shaft of the clamp 1021, a sliding pin 1023 is fixedly arranged at the tail of each handle of the clamp 1021, a first sliding groove 1024 is formed on the bottom plate of the guide frame 1022, and the sliding pin 1023 is slidingly arranged in the first sliding groove 1024. The reciprocating movement of the sliding block 107 drives the hinge shaft of the clamp 1021 to move, and in the overall movement of the clamp 1021, the tails of the two handles move along the first sliding groove 1024, the two first sliding grooves 1024 are symmetrically shaped with the front ends close to each other and the rear ends away from each other, so that the two jaws of the clamp 1021 are closed when the clamp 1021 moves forward and the jaws are opened when the clamp 1021 moves backward.

[0024] As shown in the figure: Figure 6 The shearing clamp assembly 103 includes a shearing clamp 1031 and a fixed pin 1032, a sliding block 107 is slidingly installed on the bottom plate of the guide frame 1022, the sliding block 107 is fixedly connected with the hinge shaft of the shearing clamp 1031, two fixed pins 1032 are fixedly installed on the bottom plate of the guide frame 1022, a second sliding groove 1033 is formed on the tail of the handle of the shearing clamp 1031, and the fixed pin 1032 is slidingly arranged in the second sliding groove 1033. In the reciprocating movement of the sliding block 107, the hinge shaft of the shearing clamp 1031 is driven to reciprocate, when the shearing clamp 1031 moves backward, the jaws of the shearing clamp 1031 are opened, and when the shearing clamp 1031 moves forward, the jaws of the shearing clamp 1031 are closed.

[0025] Working principle: the position of the two eccentric wheels 1051 is controlled by controlling the angle of rotation of the driving motor 104, wherein the driving motor 104 can adopt a stepping motor or a servo motor, and the rotation angle position thereof can be accurately controlled through a driving circuit, the driving motor 104 and the driving circuit for controlling the rotation thereof are prior art known to those skilled in the art, and thus will not be described in detail; firstly, the slider 107 for controlling the position of the clamp 1021 is controlled to the most front position, then the jaw of the clamp 1021 is aligned with the upper half of the pepper stem through the mechanical arm, at this time the cutting clamp 1031 is also opened and aligned with the lower half of the stem, then the driving motor 104 continues to rotate, the eccentric wheel 1051 corresponding to the position of the clamp 1021 passes the most distant position to drive the slider 107 to move backward, the clamp 1021 starts to close, gradually clamps the pepper stem, and drives the backward movement, so that the stem is closer to the jaw of the cutting clamp 1031, and the cutting efficiency is improved; then the eccentric wheel 1051 corresponding to the cutting clamp 1031 also passes the most distant position, and the corresponding slider 107 starts to move backward to drive the cutting clamp 1031 to close, at this time, the pepper stem clamped by the clamp 1021 is pulled backward for a distance and is closer to the inside of the jaw of the cutting clamp 1031, and the cutting clamp 1031 continues to close to cut the pepper stem, and the cut pepper fruit falls into the storage hopper 2 below for temporary storage, according to the capacity of the storage hopper 2, the program of the mechanical arm is set to return to the large hopper for unloading after the storage hopper 2 is stored full.

[0026] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "internal", "external" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

Claims

1. A pepper harvesting apparatus, characterized in that, The utility model provides a cutting mechanism (1) and storage hopper (2), cutting mechanism (1) below fixed mounting has storage hopper (2), and the top of storage hopper (2) is provided with opening, and the bottom of storage hopper (2) is hinged with the oblique flap (201), and the free end of oblique flap (201) is movably contacted with the side wall of storage hopper (2), and the side wall of storage hopper (2) is fixedly installed with steering wheel (202) on the side of oblique flap (201) hinged, and the first gear (203) is fixedly arranged on the hinged shaft of oblique flap (201) and the side wall of storage hopper (2), and the hinged shaft is fixedly connected with oblique flap (201), and the second gear (204) is fixedly arranged on the output shaft of steering wheel (202), and the first gear (203) is meshingly and drivingly connected with the second gear (204).

2. A pepper harvesting apparatus according to claim 1, characterised in that, The cutting mechanism (1) includes a housing (101), a clamp assembly (102), a shearing clamp assembly (103), a drive motor (104), an eccentric wheel set (105), and an eccentric wheel outer frame (106). The drive motor (104) is fixedly installed on the housing (101). The eccentric wheel set (105) is fixedly installed on the output shaft of the drive motor (104). The eccentric wheel set (105) includes two coaxially connected eccentric wheels (1051). The eccentric wheel outer frame (106) is movably sleeved on the outer edges of the two eccentric wheels (1051). The clamp assembly (102) and the shearing clamp assembly (103) are fixedly arranged on the housing (101) from top to bottom in front of the drive motor (104). The eccentric wheel outer frame (106) includes a bearing ring (1061) and a connecting rod (1062) fixed to the outer ring of the bearing ring (1061). The connecting rods (1062) of the two eccentric wheel outer frames (106) are hingedly connected with the sliding blocks (107) of the clamp assembly (102) and the shearing clamp assembly (103), respectively.

3. A pepper harvesting apparatus according to claim 2, characterised in that, The clamp assembly (102) includes a clamp (1021) and a guide frame (1022). A sliding block (107) is slidingly installed on the top plate of the guide frame (1022). The sliding block (107) is fixedly connected with the hinged shaft of the clamp (1021). A sliding pin (1023) is fixedly arranged on the tail of each handle of the clamp (1021). A first sliding slot (1024) is formed in the bottom plate of the guide frame (1022). The sliding pin (1023) is slidingly arranged in the first sliding slot (1024).

4. A pepper harvesting apparatus as claimed in claim 3, wherein, The shearing clamp assembly (103) includes a shearing clamp (1031) and a fixed pin (1032). A sliding block (107) is slidingly installed on the bottom of the bottom plate of the guide frame (1022). The sliding block (107) is fixedly connected with the hinged shaft of the shearing clamp (1031). Two fixed pins (1032) are fixedly installed on the bottom of the bottom plate of the guide frame (1022). A second sliding slot (1033) is formed in the tail of the handle of the shearing clamp (1031). The fixed pin (1032) is slidingly arranged in the second sliding slot (1033).

5. A device for harvesting chilli peppers as claimed in any one of claims 2 to 4, wherein, The two eccentric wheels (1051) of the eccentric wheel set (105) are arranged in a staggered manner. The angle α of the staggered arrangement of the two eccentric wheels (1051) is 30°-90°.

Citation Information

Patent Citations

  • Hot pepper picking manipulator based on visual identification and end executing mechanism thereof

    CN116276976A