Claw cutting type pepper picking machine

Abstract

The invention discloses a claw cutting type pepper picking machine, and relates to the technical field of pepper picking, the claw cutting type pepper picking machine comprises a motor, a transmission system, a picking execution mechanism and a collection system, the transmission system is connected with the output end of the motor; the picking executing mechanism is connected with the output end of the transmission system; the collecting system is arranged on the outer side of the picking executing mechanism; the picking executing mechanism comprises a rotating shell, a fixed cam and a plurality of sets of cutting assemblies evenly arranged in the circumferential direction of the rotating shell, the fruit cluster picking device has the beneficial effects that the picking precision is high, fruit clusters are firstly wrapped and positioned through the openable and closable picking claws, selective picking is achieved, a large number of branches and leaves can be effectively prevented from being picked at the same time, and the picking efficiency is improved; the purity of picked objects is improved; protective harvesting: a cutting area is isolated by the clamping effect of a claw-edge moving cutter, so that cutting force accurately acts on fruit stems, the risk of damage to bearing branches and flower buds in the next year is greatly reduced, and continuous high yield of trees is guaranteed.

Description

Claw-cutting pepper harvester Technical Field

[0001] This invention relates to the field of pepper harvesting technology, specifically a claw-cut pepper harvesting machine. Background Technology

[0002] The short pedicels of Sichuan pepper fruit clusters, with fruits densely clustered around the branches and covered in sharp thorns, make manual harvesting extremely difficult, inefficient, and prone to causing hand injuries. Existing handheld harvesting tools, such as shearing or comb-like harvesters, while reducing labor intensity to some extent, generally suffer from poor selectivity, easy mixing with branches and leaves, damage to fruit branches affecting next year's yield, or limited adaptability to different fruit cluster sizes. Therefore, there is an urgent need for a Sichuan pepper harvesting device that can precisely grip the fruit clusters, efficiently cut them, and effectively collect them. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a claw-cutting pepper harvester. By simulating the enveloping action of a "claw," it achieves precise feeding and gripping, and completes harvesting in conjunction with a cutting action. This effectively improves harvesting purity, protects fruit branches, and adapts to pepper spikes in different clump-like states, thus solving the problems mentioned in the background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a claw-cutting pepper harvester, comprising a motor, a transmission system, a harvesting execution mechanism, and a collection system. The transmission system is connected to the output end of the motor; the harvesting execution mechanism is connected to the output end of the transmission system; the collection system is located outside the harvesting execution mechanism; the harvesting execution mechanism includes a rotating housing, a fixed cam, and several sets of cutting components evenly arranged circumferentially along the rotating housing; the rotating housing is connected to the output end of the transmission system and can rotate around the axis of the fixed cam; the fixed cam is fixedly located inside the collection system and rotates relative to the rotating housing; each set of cutting components includes a swingable claw-shaped moving blade with a comb-like front end. When the motor drives the blade to rotate through the transmission mechanism, the blade passes through the gaps in the peppercorns, clamps the target fruit spike, and then cuts the fruit spike at the moment of closing. This design simulates the action of a human hand grasping, achieving an active and selective "feeding" effect.

[0005] Preferably, in this invention, a plurality of tooth fixing shells are fixedly installed on the circumferential outer wall of the rotating housing; each tooth fixing shell is provided with a plurality of claw blade fixed blades as fixed shearing blades; the claw blade moving blade is rotatably mounted on the tooth fixing shell via a tooth rotating shaft; when the claw blade moving blade is closed, its cutting edge and the claw blade fixed blade form a shearing pair.

[0006] Preferably, in this invention, the front end of the rotating housing is provided with a power input end cover for connection with the transmission system; the rear end of the collecting system is provided with a cam fixing end cover by bolts, and the fixing cam passes through the cam fixing end cover.

[0007] Preferably, in this invention, each set of cutting components further includes a return spring, and the two arms of the return spring are respectively engaged with the outer side of the claw blade and the inside of the spring clamping plate, keeping the blade teeth in an "open" state. The rotating housing drives the claw blade to grasp the fruit spike like a comb. When the lower end of the claw blade contacts the fixed cam rod, the fruit spike is firmly clamped by the further closed claw blade. The claw blade and the fixed claw blade work together to quickly and neatly cut off the pepper fruit stalk. After the cutting is completed, the claw blade reopens under the action of the return spring. This cycle repeats. The spring clamping plate is fixedly installed on the inner wall of the blade tooth rotating shaft. Each set of cutting components also includes a blade tooth limiting rod for limiting the maximum opening angle of the claw blade.

[0008] Preferably, in this invention, the fixed cam includes a camshaft shoulder, a cam guide rod, a fixed boss, and a D-shaped shaft. The tail of the claw-shaped moving blade contacts the contour of the cam guide rod. The D-shaped shaft is used to insert into the interior of the cam fixed end cover, and the camshaft shoulder is used to insert into the interior of the power input end cover and is rotatably connected to it via a bearing.

[0009] Preferably, in this invention, the transmission system includes a driven pulley, a driving pulley, and a transmission belt. The driven pulley is fixedly connected to the power input end cover, the transmission belt is connected to the output end of the motor, and the driving pulley is sleeved on the outside of the driven pulley and the transmission belt to transmit the output rotational power. Preferably, the collection system includes an outer mounting housing, a motor mounting cylinder, and a collection cylinder fixedly installed together. The collection cylinder is typically connected to a rear collection hopper and a flexible conveying pipe connected to the collection hopper. The cut peppercorn spikes fall into the collection hopper under gravity or auxiliary airflow and are then centrally conveyed to a collection bag or container via the conveying pipe, achieving integrated harvesting and collection and reducing fruit spillage.

[0010] Preferably, in this invention, the tooth fixing shell further includes a tooth fixing boss and a tooth rotating shaft hole formed inside the tooth fixing boss, and the tooth rotating shaft is installed inside the tooth rotating shaft hole.

[0011] This invention provides a claw-type pepper harvester, which has the following beneficial effects: 1. High harvesting accuracy: The openable "harvesting claw" first wraps around and positions the fruit spikes, realizing selective harvesting, which can effectively avoid a large number of branches and leaves being picked at the same time, and improve the purity of the harvested product.

[0012] 2. Protective harvesting: The gripping action of the claw-blade knife isolates the cutting area, allowing the cutting force to be applied precisely to the fruit stalk, greatly reducing the risk of damage to fruiting branches and flower buds for the following year, which is conducive to ensuring the continued high yield of trees.

[0013] 3. Strong adaptability: The claw-cut structure is well adapted to the clustering state and size of pepper spikes, and is especially suitable for situations where the spikes are dense and the pedicels are short.

[0014] 4. Improved efficiency and safety: Mechanized clamping and cutting replace manual picking, reducing labor intensity and avoiding the risk of hands being scratched by thorns. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the structure of the present invention; Figure 2 is a schematic diagram of the unfolded structure of the present invention; Figure 3 is a schematic diagram of the structure of the rotating shell of the present invention; Figure 4 is a schematic diagram of the unfolded structure of the rotating shell of the present invention; Figure 5 is a schematic diagram of a partial structure of the cutting assembly of the present invention; Figure 6 is a schematic diagram of the structure of the blade fixing shell of the present invention; Figure 7 is a schematic diagram of the structure of the fixing cam of the present invention.

[0016] In the diagram: 1. Harvesting mechanism; 11. Cutting assembly; 111. Claw blade moving knife; 112. Blade shaft; 113. Return spring; 114. Spring clamping plate; 115. Blade limit rod; 12. Rotating housing; 121. Blade fixing housing; 1211. Blade fixing boss; 1212. Blade shaft hole; 1213. Claw blade fixed knife; 122. Power input end cover; 123. Cam fixing end cover; 13. Fixed cam; 131. Camshaft shoulder; 132. Cam guide rod; 133. Fixing boss; 134. D-shaped shaft; 2. Transmission system; 21. Driven pulley; 22. Driven pulley; 23. Transmission belt; 3. Collection system; 31. Outer mounting housing; 32. Motor mounting cylinder; 33. Collection cylinder; 4. Electric motor. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Please refer to Figures 1 to 7. The present invention provides the following technical solution: As shown in Figures 1 and 2, the claw-cutting pepper harvesting device of this embodiment generally includes: a harvesting execution mechanism 1, a transmission system 2, a collection system 3, and an electric motor 4 as a power source. The above components are integrated into an ergonomic handheld housing, which is compact in structure and easy for users to hold and operate with one hand.

[0019] 1. Regarding the harvesting mechanism 1, the harvesting mechanism 1 is the core component for completing the functions of grasping, clamping, and cutting pepper spikes. Specifically, the mechanism mainly consists of a rotatable rotating shell 12, a fixed cam 13, and several sets of cutting components 11 evenly arranged around the circumference of the rotating shell 12.

[0020] 1.1 As shown in Figures 2, 3, and 4, the rotating housing 12 is generally a hollow cylindrical structure. Its front end is closed by a power input end cap 122, which has an interface at its center for connecting to the output shaft of the transmission system 2 to receive power. The rear end of the rotating housing 12 is closed by a cam-fixed end cap 123. Multiple tooth fixing shells 121 are fixedly installed on the cylindrical outer wall of the rotating housing 12. Each tooth fixing shell 121 has a tooth fixing boss 1211 for mounting the cutting assembly 11, a tooth shaft hole 1212 for the tooth shaft to pass through, and a claw-shaped fixed blade 1213 for fixing the shearing blade.

[0021] 1.2 Fixed cam 13 As shown in Figures 2 and 7, the fixed cam 13 is fixedly mounted on the main housing of the device via a D-shaped shaft 134 at its end, ensuring that its spatial position is absolutely stationary during operation. The main structure of the fixed cam 13 includes: a camshaft shoulder 131 for axial positioning, a cam guide rod 132, and a fixed boss 133 for fixed connection with the device housing.

[0022] 1.3 For the cutting assembly 11, please refer to Figures 4 and 5. Each set of cutting assemblies 11 is installed on one of the blade fixing shells 121. The cutting assembly 11 mainly includes: claw blade moving blade 111, blade rotating shaft 112, return spring 113, spring clamping plate 114, and blade limiting rod 115.

[0023] Claw-blade moving blade 111: Its front end is machined with comb-like protrusions, which are used to insert into the gaps between dense peppercorn spikes during rotation to achieve initial separation and grasping. The middle part of the claw-blade moving blade 111 is rotatably supported in the blade shaft hole 1212 of the blade fixed shell 121 through the blade shaft 112, so that the claw-blade moving blade 111 can swing around the shaft like a "claw".

[0024] Return spring 113 and spring clamping plate 114: The return spring 113 is sleeved on the cutting tooth rotating shaft 112, one end of which is limited by the spring clamping plate 114 fixed on the cutting tooth fixing shell 121, and the other end acts on the tail of the claw blade moving knife 111. In the natural state, the elastic force of the return spring 113 drives the front end of the claw blade moving knife 111 to remain in the open state.

[0025] Cutting tooth limiting rod 115: It is fixed on the cutting tooth fixing shell 121 and is used to limit the maximum opening angle of the claw blade moving knife 111 under the action of the return spring 113, so as to ensure the consistency of its initial position.

[0026] 2. Regarding the transmission system 2, the transmission system 2 is housed in the outer casing of the device. It typically comprises a drive pulley 22 driven by the electric motor 4 and a driven pulley 21 ultimately connected to the power input end cover 122 of the rotating housing 12, or a reduction mechanism (not shown) consisting of a series of intermediate transmission gears (or pulleys). The function of the transmission system 2 is to convert the high-speed, low-torque output of the electric motor 4 into the lower speed and higher torque required to drive the rotating housing 12.

[0027] 3. Regarding the collection system 3, the collection system 3 is used to receive and transport the harvested pepper fruits. It mainly includes a funnel-shaped collection cylinder 33 located at the rear of the harvesting actuator 1 and a flexible conveying pipe (not shown in the figure) connected to the outlet of the collection cylinder 33. The inlet of the collection hopper faces the area behind the claw-blade moving blade 111 on the rotating housing 12 to ensure that the cut fruit spikes are effectively captured under the action of centrifugal force and gravity. The flexible conveying pipe can guide the fruits into a collection bag suspended at the operator's waist or back, enabling continuous operation.

[0028] In summary, this claw-cutting pepper harvester, in its starting device, has an electric motor 4 that drives the rotating housing 12 to rotate at a constant speed around the axis of the fixed cam 13 via the transmission system 2. Multiple sets of cutting components 11 fixed to the rotating housing 12 then revolve accordingly.

[0029] 1. Grasping and Feeding Stage: When the device revolves and approaches the pepper spike, the front end of the claw blade 111 is in an open state under the elastic force of the return spring 113. The rotating comb-shaped claw blade 111, like a comb, inserts into and passes through the pepper spike, initially separating and "grabbing" the target spike from the branches and leaves, thus completing the active feeding.

[0030] 2. Clamping and Cutting Stage: As the rotating housing 12 continues to rotate, the tail of the claw-blade moving blade 111 (the end opposite to the active end of the return spring 113) begins to contact and slide along the contour of the cam guide rod 132 of the fixed cam 13. Under the squeezing action of the cam contour, the claw-blade moving blade 111 overcomes the elastic force of the return spring 113 and swings inward (in the closing direction) around the blade tooth axis 112. This process causes the front end of the claw-blade moving blade 111 to gradually close, thereby firmly clamping the pepper spike between its blade edge and the claw-blade fixed blade 1213.

[0031] 3. Complete the cutting: When the moving claw blade 111 swings to the minimum gap between its edge and the fixed claw blade 1213, the two form a highly efficient shearing pair, which, like scissors, quickly and cleanly cuts off the peppercorn stem.

[0032] 4. Reset and Discharge Stage: After the cutting action is completed, as rotation continues, the tail of the claw blade 111 disengages from the compression of the cam rod 132. Under the instantaneous rebound force of the reset spring 113, the claw blade 111 swings rapidly, returning to its open state, preparing for the next harvesting cycle. The cut peppercorn spikes are thrown away from the claw blade 111 by inertia and fall into the collection cylinder 33 behind, then enter the collection bag through the conveying pipe.

[0033] The above process is repeated cyclically as the rotating shell 12 continues to rotate, achieving efficient, continuous, and selective "claw-cutting" harvesting. This invention, through its ingenious mechanical structure, effectively reduces labor intensity, avoids the risk of hand injuries, and minimizes damage to fruiting branches, thus promoting sustained high yields for the pepper trees.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A claw-type pepper harvester, comprising an electric motor (4), a transmission system (2), a harvesting actuator (1), and a collection system (3), characterized in that: The transmission system (2) is connected to the output end of the motor (4); the harvesting execution mechanism (1) is connected to the output end of the transmission system (2); the collection system (3) is located outside the harvesting execution mechanism (1); the harvesting execution mechanism (1) includes a rotating housing (12), a fixed cam (13) and several sets of cutting components (11) evenly arranged around the circumference of the rotating housing (12); the rotating housing (12) is connected to the output end of the transmission system (2) and can rotate around the axis of the fixed cam (13); the fixed cam (13) is fixedly located inside the collection system (3) and rotates relative to the rotating housing (12); each set of cutting components (11) includes a swingable claw blade (111).

2. The claw-cutting pepper harvester according to claim 1, characterized in that: Multiple toothed fixing shells (121) are fixedly installed on the circumferential outer wall of the rotating housing (12); each toothed fixing shell (121) is provided with multiple claw-shaped fixed blades (1213) as fixed shearing blades; the claw-shaped moving blade (111) is rotatably mounted on the toothed fixing shell (121) through the toothed rotating shaft (112); when the claw-shaped moving blade (111) is closed, its cutting edge and the claw-shaped fixed blade (1213) form a shearing pair.

3. The claw-cutting pepper harvester according to claim 1, characterized in that: The front end of the rotating housing (12) is provided with a power input end cover (122) for connecting with the transmission system (2); the rear end of the collection system (3) is provided with a cam fixing end cover (123) by bolts, and the fixing cam (13) passes through the cam fixing end cover (123).

4. The claw-cutting pepper harvester according to claim 1, characterized in that: Each set of the cutting assembly (11) also includes a return spring (113), and the two arms of the return spring (113) are respectively engaged on the outside of the claw blade (111) and the inside of the spring clamping plate (114), and the spring clamping plate (114) is fixedly installed on the inner wall of the blade shaft (112); each set of the cutting assembly (11) also includes a blade limiting rod (115) for limiting the maximum opening angle of the claw blade (111).

5. The claw-cutting pepper harvester according to claim 1, characterized in that: The fixed cam (13) includes a camshaft shoulder (131), a cam rod (132), a fixed boss (133), and a D-shaped shaft (134). The tail of the claw-shaped moving blade (111) contacts the contour of the cam rod (132). The D-shaped shaft (134) is used to insert into the interior of the cam fixed end cover (123). The camshaft shoulder (131) is used to insert into the interior of the power input end cover (122) and is rotatably connected to it through a bearing.

6. The claw-cutting pepper harvester according to claim 1, characterized in that: The transmission system (2) includes a driven pulley (21), a driving pulley (22) and a transmission belt (23). The driven pulley (21) is fixedly connected to the power input end cover (122). The transmission belt (23) is connected to the output end of the motor (4). The driving pulley (22) is sleeved on the outside of the driven pulley (21) and the transmission belt (23) and is used to transmit the output rotational power.

7. The claw-cutting pepper harvester according to claim 1, characterized in that: The collection system (3) includes an outer mounting housing (31), a motor mounting cylinder (32), and a collection cylinder (33) that are fixedly installed together.

8. The claw-cutting pepper harvester according to claim 2, characterized in that: The tooth fixing shell (121) also includes a tooth fixing boss (1211) and a tooth rotating shaft hole (1212) opened inside the tooth fixing boss (1211), and the tooth rotating shaft (112) is installed inside the tooth rotating shaft hole (1212).

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