Rotary shearing type green prickleyash picking machine based on picking in pile

Abstract

The invention discloses a rotary shearing type green prickleyash picking machine based on picking under a pile, belongs to the technical field of agricultural machinery, and relates to mechanical equipment for picking green prickleyash. The pepper branch cutting device mainly comprises a machine frame, a pepper branch conveying device, a rotary clamping device, a positioning guiding device, an inclined reciprocating cutter and a collecting frame, wherein the pepper branch conveying device, the rotary clamping device, the positioning guiding device and the inclined reciprocating cutter are installed on the machine frame. The pepper branch conveying device is arranged on the upper left portion of the picking machine and used for driving the rotary clamping device to move. The rotary clamping device is arranged on the front right side of the pepper branch conveying device and used for clamping pepper branches for rotary feeding; the oblique reciprocating cutter is used for integrally cutting pepper branches through the reciprocating motion of a blade and the self rotation of the pepper branches; full-automatic green prickleyash threshing and picking based on a pile picking method is achieved, the labor intensity of green prickleyash picking is greatly reduced, and the green prickleyash picking efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology and is a mechanical device for harvesting Sichuan peppercorns, specifically a rotary shearing Sichuan peppercorn harvester based on "stake-down harvesting". Background Technology

[0002] Sichuan pepper, a unique agricultural treasure of my country, carries a profound historical heritage. Its cultivation footprint covers more than 20 provinces and cities across the country. It is not only loved for its unique flavor, but also contains rich medicinal value, bringing considerable economic returns to farmers year after year.

[0003] Currently, the harvesting of Sichuan peppercorns mainly relies on traditional manual methods, a process fraught with challenges. The branches of Sichuan peppercorns are slender and covered with sharp thorns, and the fruit surface is covered with easily damaged oil cells, making harvesting both difficult and inefficient, often accompanied by the risk of hand injuries to harvesters. Furthermore, the concentrated and short harvesting period further exacerbates the difficulties. Although Sichuan peppercorns bring considerable income to farmers, the demanding harvesting process and high costs have become a heavy burden, severely hindering the development of the Sichuan peppercorn industry to a higher level. Therefore, the development of an efficient, reliable, and easy-to-operate Sichuan peppercorn harvesting machine has become a pressing need for many farmers. Such a machine would not only significantly improve harvesting efficiency, reduce the labor intensity of farmers, and lower the risk of injury during harvesting, but also provide strong technical support for the sustainable and healthy development of the Sichuan peppercorn industry.

[0004] This invention is a Sichuan pepper harvesting machine developed based on the "stub-down harvesting" method. The so-called stub-down harvesting method means that the branches are cut off along with the fresh fruit during harvesting. This harvesting method not only improves the efficiency of harvesting Sichuan pepper, but also promotes the growth of Sichuan pepper trees in the second year.

[0005] The prior art CN202022024230.5, which is similar to this invention, can complete the threshing of green Sichuan pepper based on the bottom-picking method, but it has design defects. It cannot fully adapt to the thickness of the green Sichuan pepper branches, and the ring cut is a fixed size that cannot change with the branches. The picking technology is not yet mature.

[0006] The prior art CN202122800019.2, which is similar to this invention, still requires pepper growers to manually find the pepper clusters on the pepper branches. The harvesting intensity is still huge, and the damage rate of peppers during harvesting is relatively high. The harvesting technology is not yet mature.

[0007] The prior art CN202210834503.3, which is similar to this invention, describes a pepper harvesting machine. Although this harvesting machine uses a dual cutting method with moving and fixed blades to harvest pepper branches, some blind spots are still not harvested, and the harvesting effect is not good. The harvesting technology is not yet mature. Summary of the Invention

[0008] The purpose of this invention is to provide a rotary shearing type Sichuan pepper harvesting machine based on "stake-down harvesting" to solve the above-mentioned problems.

[0009] The technical solution of this invention is as follows:

[0010] A rotary shearing-type Sichuan pepper harvester based on "pile-down harvesting" is characterized by: mainly including a frame and a Sichuan pepper branch conveying device, a rotary clamping device, a positioning and guiding device, an oblique reciprocating cutter, a collection frame and a Sichuan pepper branch feeding rack installed on the frame.

[0011] Furthermore, the frame is arranged directly below the harvester; the pepper branch conveying device is arranged above the left of the harvester; the rotating clamping device is arranged on the right side in front of the pepper branch conveying device; the positioning guide device is arranged on the right side of the pepper branch conveying device; the oblique reciprocating cutter is arranged on the right side of the positioning guide device; the collecting frame is arranged below the oblique reciprocating cutter; and the pepper branch feeding rack is arranged in front of the collecting frame.

[0012] Furthermore, the pepper twig conveying device mainly includes a transmission frame, transmission bearing seats, sprocket shafts, inner chain links, rotating racks, guide grooves, outer chain links, a drive sprocket, and a power motor; the transmission bearing seats are arranged on the front and rear sides of the pepper twig conveying device, responsible for fixing the sprocket shaft; the sprocket shaft is arranged in the middle of the transmission bearing seats, responsible for rotational transmission; the power motor is arranged at the rear of the pepper twig conveying device, responsible for providing operating power; the drive sprocket is coaxially connected to the sprocket shaft and arranged at the center of the two pairs of transmission bearing seats, responsible for transmitting rotational power; the inner chain links are arranged in a track shape at both ends of the transmission frame. The upper part is connected to the drive sprocket, and under the drive of the drive sprocket, the outer link performs reciprocating linear operation; the outer link is connected to the rotary clamping device, and under the movement of the inner link, the rotary clamping device performs reciprocating linear motion; the guide groove is arranged on both sides of the outer link, and is connected to the left guide wheel and the right guide wheel of the rotary clamping device, and plays a guiding role in the movement of the rotary clamping device; the rotary rack is arranged on the left side of the guide groove, and when the rotary clamping device advances to the point where the rotating gear and the rotary rack begin to engage, it drives the clamping component of the rotary clamping device to rotate, and performs rotary cutting.

[0013] Furthermore, the positioning and guiding device includes a positioning and guiding frame, a front guide cam groove, a front opening cam, a rear opening cam, and a rear guide cam groove. The front guide cam groove is located on the right side of the pepper twig conveying device and is connected to the positioning and guiding frame. When the positioning cam of the rotary clamping device moves to this position, it can restrict the spatial shape of the positioning cam, thereby restricting the clamping component to be in a vertical position at this time. The front opening cam is located on the right side of the front guide cam groove and is symmetrically distributed vertically. It is used to open the top support plate at this position, freeing up a free position for adding pepper twigs. The rear opening cam is located directly behind the front opening cam and works on the same principle as the front opening cam. It is used to unload the processed pepper twigs. The rear guide cam groove is located behind the front guide cam groove and is mainly used for guiding the rotary clamping device during its return stroke.

[0014] Furthermore, the rotary clamping device mainly includes a rotating gear, a left guide wheel, a bearing seat, a clamping shaft, a clamping base, a right guide wheel, a positioning cam, and a clamping component. The rotating gear is located on the far left of the rotary clamping device. When the entire rotary clamping device moves to the point where the rotating gear meshes with the rotating rack, it will drive the entire clamping component to rotate, thereby driving the pepper twigs clamped in the clamping component to rotate. The clamping shaft is located on the left side of the rotary clamping device and is used to connect the various components and transmit rotation. The left guide wheel and the right guide wheel are symmetrically arranged on both sides of the center of the clamping shaft, and are also arranged in the slots on both sides of the guide groove, thus influencing the movement of the rotary clamping device. The guide mechanism ensures that the rotary clamping device can only move along the direction of the guide groove. The bearing seats are symmetrically arranged on both sides of the center of the clamp shaft and coaxially connected to the clamp shaft to fix the spatial position of the clamp shaft. The clamp base is arranged below the bearing seats and connected to the bearing seats and the outer link. When the outer link moves, it drives the entire rotary clamping device to move, completing the process of gradually feeding the pepper branches into the inclined reciprocating cutter for threshing. The positioning cam is arranged on the right side of the right guide wheel and connected to the clamp shaft to ensure that the clamping component is in a vertical position when the pepper branches are fed in. The clamping component is arranged on the right side of the rotary clamping device.

[0015] Furthermore, the clamping components mainly include a clamping frame, pins, support columns, an upper top support column, an upper clamping plate, a lower clamping plate, a spring, a top support plate, and a lower top support column. The support columns are respectively arranged in four rectangularly distributed circular holes above and below the clamping frame, connecting to the upper and lower clamping plates and providing support. The pins are arranged in the circular through holes of the support columns, ensuring the upper and lower limits of the support columns and controlling the maximum opening distance between the upper and lower clamping plates. The springs are arranged on the outside of the support columns and coaxially connected to them, allowing the upper and lower clamping plates to return to their original positions. The upper top support column is arranged in two small circular holes at the center of the upper part of the clamping frame, connecting to the top support plate above and the lower clamping plate below. The lower top support column is arranged in two small circular holes at the center of the lower part of the clamping frame, connecting to the top support plate below and the upper clamping plate above. The upper clamping plate is positioned near the center of the rotary clamping device, with an elliptical cylindrical groove on its downward-facing surface for gripping pepper branches. The lower clamping plate is positioned near the center of the rotary clamping device, with an elliptical cylindrical groove on its upward-facing surface for gripping pepper branches. When the rotary clamping device reaches the feeding position, the upper top support plate is pushed down by the front opening cam, thereby moving the lower clamping plate downwards via the connected upper top support column. The lower top support plate is pushed up by the front opening cam, thereby moving the upper clamping plate upwards via the connected lower top support column. This increases the gap between the upper and lower clamping plates, allowing pepper branches to be fed in. After passing the feeding position, the top support plate, no longer constrained by the front opening cam, is returned to its original position by the spring, thus reducing the gap between the upper and lower clamping plates and achieving clamping.

[0016] Furthermore, the oblique reciprocating cutter mainly includes a saw blade pressing frame, a pepper branch guide plate, a double-layer reciprocating saw blade, a reciprocating cutting transmission box, a motor, and a discharge guide plate. The pepper branch guide plate is located at the leftmost part of the oblique reciprocating cutter and is connected to the saw blade pressing frame. When the pepper branches are transported to this position, they are guided into the double-layer reciprocating saw blade. The double-layer reciprocating saw blade is obliquely arranged behind the pepper branch guide plate. During operation, the double-layer reciprocating saw blade performs a reciprocating cutting motion, which, in conjunction with the rotational motion of the rotating clamping device, cuts the pepper branches into the pepper branches. The process involves feeding the pepper branches while they rotate in a straight line, ensuring that all pepper fruits are harvested from the branches. The reciprocating cutting transmission box is located to the right of the double-layer reciprocating saw blade and is connected to it, driving the blade and enabling its reciprocating motion. The motor is located above and to the right of the reciprocating cutting transmission box, providing power for the cutting operation of the oblique reciprocating cutter. The material guide plate is located in front of the double-layer reciprocating saw blade and is connected to the saw blade pressing frame, guiding the harvested pepper fruits into the collection box.

[0017] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention enables fully automated harvesting and threshing of Sichuan pepper branches harvested from the ground. By utilizing an innovative method of rotating and feeding the pepper branches into the cutter, the threshing rate of the pepper branches is significantly improved. At the same time, this invention is simple to operate; farmers only need to put the pepper branches into the conveying device to thresh the green Sichuan pepper branches. This invention greatly improves the harvesting efficiency of green Sichuan pepper while ensuring a low fruit damage rate, and can greatly reduce the labor intensity of manual harvesting for farmers. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 A three-dimensional structural diagram of a rotary shearing type Sichuan pepper harvester based on "stake-down harvesting";

[0020] Figure 2 This is a front view of a rotary shearing type Sichuan pepper harvester based on "stake-down harvesting";

[0021] Figure 3 Left view of a rotary shearing type Sichuan pepper harvester based on "stake-down harvesting";

[0022] Figure 4 A top view of a rotary shearing-type Sichuan pepper harvester based on "stake-down harvesting";

[0023] Figure 5This is a schematic diagram of the structure of a pepper branch conveying device for a rotary shearing pepper harvester based on "pile-down harvesting".

[0024] Figure 6 This is a schematic diagram of the rotating clamping device structure of a rotary shearing type Sichuan pepper harvester based on "pile-down harvesting".

[0025] Figure 7 This is a schematic diagram of the clamping component structure of a rotary clamping device for a rotary shearing type Sichuan pepper harvester based on "pile-down harvesting".

[0026] Figure 8 This is a schematic diagram of the positioning and guiding device structure of a rotary shearing type Sichuan pepper harvester based on "pile-down harvesting";

[0027] Figure 9 This is a schematic diagram of the oblique reciprocating cutter structure of a rotary shearing Sichuan pepper harvester based on "pile-down harvesting";

[0028] Figure 10 This is a schematic diagram of the overall structure of a rotary shearing-type Sichuan pepper harvester based on "pile-down harvesting";

[0029] In the diagram: 1. Frame; 2. Pepper branch conveying device; 3. Rotary clamping device; 4. Positioning and guiding device; 5. Inclined reciprocating cutter; 6. Collection frame; 7. Pepper branch feeding rack; 21. Transmission frame; 22. Transmission bearing seat; 23. Sprocket shaft; 24. Inner chain link; 25. Rotating rack; 26. Guide groove; 27. Outer chain link; 28. Drive sprocket; 29. ​​Power motor; 31. Rotating gear; 32. Left guide wheel; 33. Bearing seat; 34. Fixture shaft; 35. Fixture base; 36. Right guide wheel; 37. Positioning cam; 38. 381. Clamping components; 382. Clamping frame; 383. Pin; 384. Support column; 385. Upper top support column; 386. Upper clamping plate; 387. Lower clamping plate; 388. Spring; 389. Top support plate; 380. Lower top support column; 41. Positioning guide frame; 42. Front guide cam groove; 43. Front opening cam; 44. Rear opening cam; 45. Rear guide cam groove; 51. Saw blade pressing frame; 52. Pepper branch guide plate; 53. Double-layer reciprocating saw blade; 54. Reciprocating cutting transmission box; 55. Motor; 56. Discharge guide plate. Detailed Implementation

[0030] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0032] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0033] In the description of this invention, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating a connection between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Please see Figure 1-9 A rotary shearing type Sichuan pepper harvesting machine based on "pile harvesting" is characterized by: mainly including a frame 1 and a Sichuan pepper branch conveying device 2, a rotary clamping device 3, a positioning and guiding device 4, an oblique reciprocating cutter 5, a collection frame 6, and a Sichuan pepper branch feeding rack 7 installed on the frame 1.

[0035] In this embodiment, the frame 1 is arranged directly below the harvester; the pepper branch conveying device 2 is arranged above the left of the harvester; the rotating clamping device 3 is arranged on the right side in front of the pepper branch conveying device 2; the positioning guide device 4 is arranged on the right side of the pepper branch conveying device 2; the oblique reciprocating cutter 5 is arranged on the right side of the positioning guide device 4; the collecting frame 6 is arranged below the oblique reciprocating cutter 5; and the pepper branch feeding rack 7 is arranged in front of the collecting frame 6.

[0036] In this embodiment, the pepper twig conveying device 2 mainly includes a transmission frame 21, transmission bearing seats 22, sprocket shafts 23, inner chain links 24, rotating racks 25, guide grooves 26, outer chain links 27, drive sprockets 28, and a power motor 29. The transmission bearing seats 22 are arranged on the front and rear sides of the pepper twig conveying device 2, totaling four, arranged in pairs, responsible for fixing the sprocket shafts 23. The power motor 29 is arranged at the rear of the pepper twig conveying device 2, responsible for providing operating power. The sprocket shafts 23 are arranged in the middle of the transmission bearing seats 22, responsible for rotational transmission. The drive sprockets 28 are coaxially connected to the sprocket shafts 23, arranged at the center of the paired transmission bearing seats 22, responsible for transmitting rotational power. The inner chain links 24 are arranged in a track-like shape. The outer chain link 27 is connected to the drive sprocket 28 on the transmission frame 21 at both ends. Under the drive of the drive sprocket 28, the outer chain link 27 performs reciprocating linear operation. The outer chain link 27 is connected to the rotary clamping device 3. Under the movement of the inner chain link 24, the rotary clamping device 3 performs reciprocating linear motion. The guide groove 26 is arranged on both sides of the outer chain link 27 and is connected to the left guide wheel and the right guide wheel of the rotary clamping device 3, which guides the movement of the rotary clamping device 3. The rotary rack 25 is arranged on the left side of the guide groove 26. When the rotary clamping device 3 advances to the point where the rotating gear 31 and the rotary rack 25 begin to engage, it drives the clamping component 38 of the rotary clamping device 3 to rotate, thus performing rotary cutting.

[0037] In this embodiment, the positioning and guiding device 4 includes a positioning and guiding frame 41, a front guide cam groove 42, a front opening cam 43, a rear opening cam 44, and a rear guide cam groove 45. The front guide cam groove 42 is arranged on the right side of the pepper branch conveying device 2 and is connected to the positioning and guiding frame 41. When the positioning cam 37 of the rotating clamping device 3 moves to this position, it can restrict the spatial shape of the positioning cam 37, thereby restricting the clamping component 38 from being in a vertical position at this time. The front opening cam 43 is arranged on the right side of the front guide cam groove 42 and is symmetrically distributed vertically. It is used to open the top support plate 388 at this position, freeing up a free position for adding pepper branches. The rear opening cam 44 is arranged directly behind the front opening cam 43. Its working principle is the same as that of the front opening cam 43. It is used to unload the processed pepper branches. The rear guide cam groove 45 is arranged behind the front guide cam groove 42 and is mainly used for guiding the rotating clamping device 3 during its return stroke.

[0038] In this embodiment, the rotary clamping device 3 mainly includes a rotating gear 31, a left guide wheel 32, a bearing seat 33, a clamping shaft 34, a clamping base 35, a right guide wheel 36, a positioning cam 37, and a clamping component 38. The rotating gear 31 is arranged on the far left of the rotary clamping device 3. When the entire rotary clamping device 3 moves to the point where the rotating gear 31 meshes with the rotating rack 25, it will drive the entire clamping component 38 to rotate, thereby driving the pepper branches clamped in the clamping component 38 to rotate. The clamping shaft 34 is arranged on the left side of the rotary clamping device 3 and is used to connect the various components and transmit rotation. The left guide wheel 32 and the right guide wheel 36 are symmetrically arranged on both sides of the center of the clamping shaft 34, and are also arranged in the slots on both sides of the guide groove 26, which guide the movement of the rotary clamping device 3, so that the rotary clamping device 3 can only move along the direction of the guide groove 26. The bearing seats 33 are symmetrically arranged on both sides of the center of the clamp shaft 34 and coaxially connected to the clamp shaft 34 to fix the spatial position of the clamp shaft 34. The clamp base 35 is arranged below the bearing seats 33 and connected to the bearing seats 33 and the outer link 27. When the outer link 27 moves, it drives the entire rotary clamping device 3 to move, completing the process of gradually feeding the pepper branches into the inclined reciprocating cutter 5 for threshing. The positioning cam 37 is arranged on the right side of the right guide wheel 36 and connected to the clamp shaft 34. When the rotary clamping device 3 moves to the point where the positioning cam 37 is about to enter the front guide cam groove 42, due to the shape characteristics of the cam, the positioning cam 37 can only enter along its side with the largest radius first, thereby ensuring that the clamping component 38 is in a vertical position when the pepper branches are fed in. The clamping component 38 is arranged on the right side of the rotary clamping device 3.

[0039] In this embodiment, the clamping component 38 mainly includes a clamping frame 381, a pin 382, ​​a support column 383, an upper top support column 384, an upper clamping plate 385, a lower clamping plate 386, a spring 387, a top support plate 388, and a lower top support column 389. The support column 383 is respectively arranged in four rectangularly distributed circular holes above and below the clamping frame 381, and connects with the upper clamping plate 385 and the lower clamping plate 386, providing support. The pin 382 is arranged in the circular through hole of the support column 383, used to ensure the upper and lower limits of the support column 383 and control the upper clamping plate 385 and the lower clamping plate 386. The clamping plate 386 has a maximum opening distance limit; the spring 387 is arranged outside the support column 383 and coaxially connected to the support column 383, used to return the upper clamping plate 385 and the lower clamping plate 386 to their original positions; the upper top support column 384 is arranged in two small round holes at the center of the upper part of the clamping frame 381, connected to the top support plate 388 above and to the lower clamping plate 386 below; the lower top support column 389 is arranged in two small round holes at the center of the lower part of the clamping frame 381, connected to the top support plate 388 below and to the upper clamping plate 385 above; the upper clamping plate 385 is arranged... On the upper side of the center of the rotary clamping device 3, there is an elliptical cylindrical groove on the downward-facing surface, which is conducive to clamping pepper branches; the lower clamping plate 386 is arranged on the lower side of the center of the rotary clamping device 3, and has an elliptical cylindrical groove on the upward-facing surface, which is also conducive to clamping pepper branches; when the rotary clamping device 3 reaches the loading position, the upper top support plate 388 is pushed down by the front opening cam 43, thereby moving the lower clamping plate 386 downward through the connected upper top support column 384, and the lower top support plate 388 is pushed up by the front opening cam 43, thereby moving the lower clamping plate 386 downward through the connected lower top support column 389. The upper clamping plate 385 moves upward, thereby increasing the gap between the upper clamping plate 385 and the lower clamping plate 386. At this time, the pepper branches are fed in. After passing the feeding position, the top support plate 388, without the constraint of the front opening cam 43, will return to its original position by the spring, thereby reducing the gap between the upper clamping plate 385 and the lower clamping plate 386 to achieve the purpose of clamping. When it moves to the unloading position, under the action of the rear opening cam 44, the same principle as in the feeding position, the gap between the upper clamping plate 385 and the lower clamping plate 386 increases, and the harvested pepper branches are unloaded.

[0040] In this embodiment, the oblique reciprocating cutter 5 mainly includes a saw blade pressing frame 51, a pepper branch guide plate 52, a double-layer reciprocating saw blade 53, a reciprocating cutting transmission box 54, a motor 55, and a material discharge guide plate 56. The pepper branch guide plate 52 is located at the leftmost part of the oblique reciprocating cutter 5 and is connected to the saw blade pressing frame 51. When the pepper branches are transported to this position, they are guided into the double-layer reciprocating saw blade 53. The double-layer reciprocating saw blade 53 is obliquely arranged behind the pepper branch guide plate 52. During operation, the double-layer reciprocating saw blade 53 performs a reciprocating cutting motion, which is coordinated with the rotation of the rotating clamping device 3. The process involves rotating and feeding the pepper branches in a straight line to completely harvest the pepper fruits from the branches. The reciprocating cutting transmission box 54 is located to the right of the double-layer reciprocating serrated blade 53 and is connected to the double-layer reciprocating serrated blade 53 to drive the double-layer reciprocating serrated blade 53 and achieve reciprocating motion. The motor 55 is located to the upper right of the reciprocating cutting transmission box 54 to provide power for the cutting operation of the oblique reciprocating cutter 5. The material guide plate 56 is located in front of the double-layer reciprocating serrated blade 53 and is connected to the saw blade pressing frame 51 to guide the harvested pepper fruits into the collection frame 6.

[0041] In this embodiment, the operator only needs to place the pepper branches on the pepper branch feeding rack 7, turn on the power, and as the pepper branch conveying device 2 operates, it drives the rotating clamping device 3 to move along the guide groove 26 on the pepper branch conveying device 2. Through the cooperation of the positioning cam 37 and the front guide cam groove 42, the entire clamping component 38 is ensured to be vertical. When the rotating clamping device 3 moves to the front of the pepper branch feeding rack 7, the front opening cam 43 pushes open the top support plate 388, thereby increasing the gap between the upper clamping plate 385 and the lower clamping plate 386, thus feeding the pepper branches into the middle of the upper clamping plate 385 and the lower clamping plate 386. When the movement continues, since there is no front support... The constraint of the opening cam 43 and the action of the spring 387 reduce the gap between the upper clamping plate 385 and the lower clamping plate 386, thereby fixing the pepper branch on the rotating clamping device 3. At the same time, the rotating rack 25 and the rotating gear 37 on the left side begin to engage, driving the clamping component 38 to rotate through the clamping shaft 34, thereby driving the entire pepper branch to rotate. Then, guided by the pepper branch guide plate 52, the rotating pepper branch is fed into the oblique reciprocating cutter 5 for cutting. When it moves to the disassembly position, the action of the rear opening cam 44 increases the gap between the upper clamping plate 385 and the lower clamping plate 386, separating the harvested pepper branch from the rotating clamping device 3, completing the work.

[0042] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention can continuously clamp and feed the green pepper branches harvested from the pile into the harvesting device, adapting to pepper branches of different diameters without clogging. The double-layer reciprocating serrated blades act on the pepper clusters, reducing the damage rate to the pepper fruits. After threshing, the pepper branches are automatically released. At the same time, the present invention is simple to operate. Farmers only need to put the pepper branches into the conveying device to efficiently and with low damage threshing of green pepper branches. The present invention greatly improves the harvesting efficiency of green peppers, while ensuring an extremely low fruit damage rate, and can greatly reduce the labor intensity of farmers during harvesting.

[0043] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. The pepper branch conveying device (2) mainly includes a transmission frame (21), a transmission bearing seat (22), a sprocket shaft (23), an inner chain link (24), a rotating rack (25), a guide groove (26), an outer chain link (27), a drive sprocket (28), and a power motor (29); the power motor (29) is arranged at the rear of the pepper branch conveying device (2) and is responsible for providing running power; the transmission bearing seat (22) is arranged on the front and rear sides of the pepper branch conveying device (2), a total of 4, in pairs, and is responsible for fixing the sprocket shaft (23); the sprocket shaft (23) is arranged in the middle of the transmission bearing seat (22) and is responsible for rotational transmission; the drive sprocket (28) is coaxially connected to the sprocket shaft (23) and is arranged at the center of the pairs of transmission bearing seats (22) and is responsible for transmitting rotational power; the inner chain link (24) is arranged in a track shape. On the transmission frame (21) at both ends, the drive sprocket (28) is connected to the drive sprocket (28), and the outer chain link (27) is reciprocated linearly under the drive of the drive sprocket (28); the outer chain link (27) is connected to the rotary clamping device (3), and the rotary clamping device (3) is reciprocated linearly under the movement of the inner chain link (24); the guide groove (26) is arranged on both sides of the outer chain link (27), and is connected to the left guide wheel and the right guide wheel of the rotary clamping device (3), and plays a guiding role in the movement of the rotary clamping device (3); the rotary rack (25) is arranged on the left side of the guide groove (26), and when the rotary clamping device (3) advances to the point where the rotating gear (31) and the rotary rack (25) begin to engage, it drives the clamping component (38) of the rotary clamping device (3) to rotate, and performs rotary cutting; The positioning guide device (4) includes a positioning guide frame (41), a front guide cam groove (42), a front opening cam (43), a rear opening cam (44), and a rear guide cam groove (45). The front guide cam groove (42) is located on the right side of the pepper branch conveying device (2) and is connected to the positioning guide frame (41). When the positioning cam (37) of the rotating clamping device (3) moves to this position, it can restrict the spatial shape of the positioning cam (37), thereby restricting the clamping component (38) from being in a vertical position at this time. The front opening cam (43) is arranged on the right side of the front guide cam groove (42) and is symmetrically distributed vertically. It is used to open the top support plate (388) at this position, leaving a free position for adding pepper branches. The rear opening cam (44) is arranged directly behind the front opening cam (43). Its working principle is the same as that of the front opening cam (43). It is used to unload the processed pepper branches. The rear guide cam groove (45) is arranged behind the front guide cam groove (42). It is mainly used for guiding the rotary clamping device (3) during its return stroke. The rotary clamping device (3) mainly includes a rotating gear (31), a left guide wheel (32), a bearing seat (33), a clamp shaft (34), a clamp base (35), a right guide wheel (36), a positioning cam (37), and a clamping component (38). The rotating gear (31) is located on the far left of the rotary clamping device (3). When the entire rotary clamping device (3) moves to the point where the rotating gear (31) meshes with the rotating rack (25), it will drive the entire clamping component (38) to rotate. This causes the pepper twig held in the clamping component (38) to rotate; the clamping shaft (34) is arranged on the left side of the rotating clamping device (3) to connect the components and drive the rotation; the left guide wheel (32) and the right guide wheel (36) are symmetrically arranged on both sides of the center of the clamping shaft (34), and are also arranged in the slots on both sides of the guide groove (26), which guide the movement of the rotating clamping device (3) so that the rotating clamping device (3) can only move along the direction of the guide groove (26). Movement; the bearing seats (33) are symmetrically arranged on both sides of the center of the clamp shaft (34) and coaxially connected to the clamp shaft (34) to fix the spatial position of the clamp shaft (34); the clamp base (35) is arranged below the bearing seats (33), connected to the bearing seats (33), and connected to the outer link (27). When the outer link (27) moves, it drives the entire rotating clamping device (3) to move, completing the process of gradually feeding the pepper branches into the oblique reciprocating cutter (5) for threshing. The positioning cam (37) is arranged on the right side of the right guide wheel (36) and connected to the clamp shaft (34). When the rotary clamping device (3) moves to the point where the positioning cam (37) will enter the front guide cam groove (42), due to the shape characteristics of the cam, the positioning cam (37) can only enter along the side with the largest radius first, thereby ensuring that the clamping component (38) is in a vertical position when the pepper twig is fed in; the clamping component (38) is arranged on the right side of the rotary clamping device (3); The clamping component (38) mainly includes a clamping frame (381), a pin (382), a support column (383), an upper top support column (384), an upper clamping plate (385), a lower clamping plate (386), a spring (387), a top support plate (388), and a lower top support column (389). The support column (383) is respectively arranged in four rectangularly distributed circular holes above and below the clamping frame (381), and is connected to the upper clamping plate (385) and the lower clamping plate (386) to provide support. The pin (382) is arranged in the circular through hole of the support column (383) to ensure the upper and lower limits of the support column (383) and control the upper clamping plate (385) and the lower clamping plate (386). The opening distance limit of the lower clamping plate (386); the spring (387) is arranged outside the support column (383) and coaxially connected with the support column (383) to return the upper clamping plate (385) and the lower clamping plate (386) to their original positions; the upper top support column (384) is arranged in two small round holes at the center of the upper part of the clamping frame (381), connected to the top support plate (388) above and to the lower clamping plate (386) below; the lower top support column (389) is arranged in two small round holes at the center of the lower part of the clamping frame (381), connected to the top support plate (388) below and to the upper clamping plate (385) above; the upper clamping plate ( 385) The lower clamping plate (386) is arranged on the upper side of the center of the rotary clamping device (3), with an elliptical cylindrical groove on its downward-facing surface, which is conducive to clamping the pepper branches; the upper clamping plate (386) is arranged on the lower side of the center of the rotary clamping device (3), with an elliptical cylindrical groove on its upward-facing surface, which is conducive to clamping the pepper branches; when the rotary clamping device (3) reaches the loading position, the upper top support plate (388) will be pushed down by the front opening cam (43), thereby moving the lower clamping plate (386) downward through the connected upper top support column (384), and the lower top support plate (388) will be pushed up by the front opening cam (43), thereby moving the lower clamping plate (386) downward through the connected lower top support column (389). The upper clamping plate (385) is moved upward, thereby increasing the gap between the upper clamping plate (385) and the lower clamping plate (386). At this time, the pepper branches are fed in. After passing the feeding position, the top support plate (388) will return to its original position due to the absence of the constraint of the front opening cam (43), thereby reducing the gap between the upper clamping plate (385) and the lower clamping plate (386) to achieve the purpose of clamping. When the movement reaches the unloading position, under the action of the rear opening cam (44), the same principle as in the feeding position is applied, the gap between the upper clamping plate (385) and the lower clamping plate (386) increases, and the harvested pepper branches are unloaded. The oblique reciprocating cutter (5) mainly includes a saw blade pressing frame (51), a pepper branch guide plate (52), a double-layer reciprocating saw blade (53), a reciprocating cutting transmission box (54), a motor (55), and a material discharge guide plate (56). The pepper branch guide plate (52) is located at the leftmost part of the oblique reciprocating cutter (5) and is connected to the saw blade pressing frame (51). When the pepper branches are transported to this position, the pepper branches are guided into the double-layer reciprocating saw blade (53). The double-layer reciprocating saw blade (53) is obliquely arranged behind the pepper branch guide plate (52). During operation, the double-layer reciprocating saw blade (53) performs reciprocating cutting motion, which is coordinated with the rotation of the rotating clamping device (3). The process involves rotating the pepper branches while feeding them in a straight line to completely harvest the pepper fruits from the branches. The reciprocating cutting transmission box (54) is located on the right side of the double-layer reciprocating serrated blade (53) and is connected to the double-layer reciprocating serrated blade (53) to drive the double-layer reciprocating serrated blade (53) and achieve reciprocating motion. The motor (55) is located on the upper right side of the reciprocating cutting transmission box (54) to provide power for the cutting operation of the oblique reciprocating cutter (5). The material guide plate (56) is located in front of the double-layer reciprocating serrated blade (53) and is connected to the saw blade pressing machine frame (51) to guide the harvested pepper fruits into the collection frame (6).

2. A rotary shearing type Sichuan pepper harvester based on "stake-down harvesting" as described in claim 1, characterized in that: The operator only needs to place the pepper branches on the pepper branch feeding rack (7), turn on the power, and as the pepper branch conveying device (2) operates, it drives the rotating clamping device (3) to move along the guide groove (26) on the pepper branch conveying device (2). Through the cooperation of the positioning cam (37) and the front guide cam groove (42), the entire clamping component (38) is ensured to be vertical. When the rotating clamping device (3) moves to the front of the pepper branch feeding rack (7), the front opening cam (43) pushes open the top support plate (388), thereby increasing the gap between the upper clamping plate (385) and the lower clamping plate (386), thereby feeding the pepper branches into the middle of the upper clamping plate (385) and the lower clamping plate (386). When the movement continues, since there is no front opening cam, the pepper branches will not be fed into the middle of the upper clamping plate (385) and the lower clamping plate (386). The constraint of the cam (43) and the action of the spring (387) reduce the gap between the upper clamping plate (385) and the lower clamping plate (386), thereby fixing the pepper branches on the rotating clamping device (3). At the same time, the rotating rack (25) on the left and the rotating gear (37) begin to cooperate, and the clamping component (38) is driven to rotate through the clamping shaft (34), thereby driving the entire pepper branch to rotate. Then, guided by the pepper branch guide plate (52), the rotating pepper branch is transported into the oblique reciprocating cutter (5) for cutting. When it moves to the disassembly position, the gap between the upper clamping plate (385) and the lower clamping plate (386) is increased by the action of the rear opening cam (44), and the harvested pepper branches are separated from the rotating clamping device (3), completing the work.

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