Small pea plant picking and stripping machine based on four-wheel direct drive

Abstract

The invention relates to a pea plant picking and stripping machine based on four-wheel direct drive. Comprising a movable chassis mechanism, and a harvesting mechanism, a conveying mechanism, a stripping and sorting mechanism and a hopper mechanism which are respectively connected with the chassis mechanism, the harvesting mechanism is used for harvesting peas and comprises a drum roller arranged in a rotating mode, a plurality of twisted double springs arranged on the drum roller and a second harvesting mechanism shell arranged below the drum roller, a fixing frame is arranged on the second harvesting mechanism shell, and the drum roller is arranged on the fixing frame in a rotating mode; two end rods of the torsion double spring are obliquely arranged outwards in the rotation direction so as to clamp and pull the harvested peas downwards into the second harvesting mechanism shell along with rotation. Compared with the prior art, portability and sensitivity of small agricultural machinery and automation of a picking mechanism are fully utilized, movement and operation under various complex terrain conditions can be met, and efficient unmanned pea picking and stripping are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of picking, sorting and peeling of agricultural pea plants, relates to automation technology in the field of picking and peeling of pea plants and design technology of a four-wheel chassis, and specifically relates to a small pea plant picking and peeling machine based on four-wheel direct drive. Background Art

[0002] Peas are one of the main edible legume crops, and they have a large output and high demand worldwide, and they are showing an increasing trend year by year. Pea planting has great economic value, so improving the economic benefits of planting is also an important task for the development of my country's agriculture. In areas with good agricultural environment such as Northeast my country and the North China Plain, the degree of mechanization of pea planting and harvesting is relatively high. However, peas prefer cool climates and are mainly distributed in low-altitude temperate zones and high-altitude monsoon climate zones. Among them, for some high-altitude areas, the geographical environment is complex, and it is difficult to achieve agricultural automation through large machinery. The planting and harvesting of peas and other crops are mostly still done manually, which makes it difficult for farmers to produce and inefficient.

[0003] Patent CN201720252185.4 proposes a pea picker, including three parts: a shearing pliers, a support frame, and a storage box. A clear design process for an agricultural harvester is given, which includes both harvesting and storage, ensuring the continuity of the harvesting process. Patent CN201920346701.9 proposes a green pea picking device, including a bracket, a scraper, a blower, a screen, a box, etc., with a hopper at the bottom to uniformly collect the picked peas, and driven by a motor belt to realize the automation of picking. It is simple to use, has high picking efficiency, and can effectively reduce the picking cost of green peas. However, they only have good pea picking efficiency in areas with flat and simple geographical environments, and their applicability to pea picking in terrains with complex and changeable geographical environments or in some high-altitude areas remains to be considered.

[0004] Comparative analysis of current domestic and foreign research shows that agricultural machinery equipped with a four-wheel direct-drive chassis has good applicability in complex and changeable terrains, and there is currently a lack of pea harvesting machinery equipped with a four-wheel mobile chassis at home and abroad. Summary of the invention

[0005] The purpose of the present invention is to provide a pea plant picking and stripping machine based on four-wheel direct drive, which is used to solve the problem that it is difficult to realize agricultural automation through large-scale machinery in areas with complex geographical environments and can only be picked manually. This small pea plant picking and stripping machine based on four-wheel direct drive has portability and flexibility. Through advanced mechanical structure and efficient drive system, the machine can move and operate freely and flexibly in complex and changeable terrain, thereby realizing the automation and mechanization of pea harvesting, sorting and stripping, greatly reducing manual labor, thereby improving the economic benefits of pea planting.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] The present invention provides a small pea plant picking and stripping machine based on four-wheel direct drive, comprising:

[0008] A movable chassis mechanism, and a harvesting mechanism, a conveying mechanism, a stripping and sorting mechanism, and a hopper mechanism respectively connected to the chassis mechanism;

[0009] The harvesting mechanism is used for harvesting peas, and comprises a rotatable drum roller, a plurality of torsion double springs for harvesting arranged on the drum roller, and a second harvesting mechanism shell arranged below the drum roller, a fixing frame is arranged on the second harvesting mechanism shell, the drum roller is rotatably arranged on the fixing frame, and the two end rods of the torsion double spring are arranged to be inclined outwardly along the rotation direction, so as to clamp and push the harvested peas into the second harvesting mechanism shell as the rotation progresses;

[0010] The conveying mechanism is used to convey the harvested peas to the stripping and sorting mechanism;

[0011] The stripping and sorting mechanism is used for stripping and sorting pea grains and pea pods;

[0012] The hopper mechanism is used for collecting peas.

[0013] Among them, the chassis mechanism is the core of the entire machine movement, the harvesting mechanism is the mechanism that directly contacts the external environment among the mechanisms participating in the operation, the transmission mechanism is an important mechanism that connects the harvesting mechanism with the stripping and sorting mechanism, the stripping and sorting mechanism is the core mechanism for separating pods and beans, and the hopper mechanism is a mechanism used to collect peas and beans from the stripping and sorting mechanism, and has a storage function.

[0014] Further, the drum roller includes a plurality of drum plates, a drum tube surrounding the plurality of drum plates, and a drum center axis passing through the center of the plurality of drum plates, one end of the drum center axis passes through the fixed frame, and is provided with a drum plate synchronous pulley, the torsion double springs are fixed on the drum tube in a row, and play a harvesting role during the rotation of the drum; a spiral feed rod group is provided in the housing of the second harvesting mechanism, and the synchronous pulley obtains the power of the motor to drive the spiral feed rod to rotate, and transfers the collected peas to the transmission mechanism. The spiral feed rod group includes a feed screw rotatably arranged in the housing of the second harvesting mechanism, and a feed rod synchronous pulley fixedly connected to the feed screw, the feed rod synchronous pulley includes a first feed rod synchronous pulley and a second feed rod synchronous pulley coaxially connected, the first feed rod synchronous pulley and the drum plate synchronous pulley, the second feed rod synchronous pulley and the first chassis synchronous pulley are connected through corresponding synchronous belt transmission. The drum roller is supported by multiple drum plates and surrounded by drum tubes. The drum center axis in the middle serves as the power input unit and is driven by a chassis drive motor.

[0015] Furthermore, the conveying mechanism includes an inclined conveyor belt, and conveyor belt rollers arranged in parallel at both ends of the conveyor belt, the lower conveyor belt roller is connected to the harvesting mechanism, and the upper conveyor belt roller is connected to the stripping and sorting mechanism. The conveyor belt is provided with a plurality of sidewalls arranged at intervals along the conveying direction, and the sidewalls extend laterally along the conveyor belt. The conveyor mechanism obtains the power of the motor through the synchronous pulley of the feeding rod, drives the upper conveyor belt roller to rotate, thereby driving the entire conveyor belt to rotate, and the conveyor belt baffle can more easily transport the pea plants or pea pods from the harvesting mechanism to the conveyor mechanism.

[0016] Furthermore, the conveying mechanism also includes a coupling and a cylindrical pin connected in sequence to one end of the upper conveyor belt roller, and connectors arranged at both ends of the lower conveyor belt roller; a first harvesting mechanism shell is also provided on one side of the second harvesting mechanism shell, located downstream of the conveying direction of the spiral feeding rod group, the first harvesting mechanism shell is connected to the lower conveyor belt roller, the first harvesting mechanism shell includes a first plate and a second plate arranged in parallel, and a third plate connecting the first plate and the second plate by six-sided nuts and bolts, a connecting frame is fixedly connected to the second plate, a first connecting hole is opened on the connecting frame, a second connecting hole opposite to the first connecting hole is opened on the first plate, and the connectors at both ends of the lower conveyor belt roller are respectively inserted into the first connecting hole and the second connecting hole. The harvesting mechanism shell is composed of a plurality of plates spliced ​​together, which plays a role in fixing the positions of various components and gathering pea plants.

[0017] Furthermore, the stripping and sorting mechanism includes a shell side plate arranged in parallel to fix the entire stripping and sorting mechanism, a stripping roller rotatably arranged between the shell side plates, and a sorting screen arranged below the stripping roller and matching with the gap at the lower side of the stripping roller, wherein the matching gap between the stripping roller and the sorting screen is adapted to the thickness of the peas, and the aperture of the sorting screen is adapted to the particle size of the peas; one end of the upper conveyor belt roller passes through the shell side plate and is provided with a conveyor roller synchronous pulley, and circular holes for sliding support of cylindrical pins and conveyor roller synchronous pulleys are relatively provided on the shell side plate. The stripping roller is restricted and fixed by the shell side plates on both sides, and a support tube is arranged around the shell side plates, and the support tube is covered with a rubber casing. The stripping roller extends to the outside of the shell side plates and is directly driven by a motor. During the rotation process, it can generate a large resistance with the sorting screen, thereby stripping the pea pods from the conveying mechanism.

[0018] Furthermore, the stripping and sorting mechanism also includes parallel stripping roller side plates, a plurality of support tubes arranged between the stripping roller side plates along the circumference of the stripping roller, a roller drive motor for driving the stripping roller, and a guide plate arranged at the tail of the entire stripping and sorting mechanism. A roller drive motor is also provided on one side of the stripping roller side plate. The roller drive motor passes through the outer shell side plate and is transmission-connected to the roller drive motor. The bean pod shells and pea plant seedlings as waste are transmitted to the tail of the stripping and sorting mechanism along the gap between the stripping roller and the sorting screen, and are discharged from the entire machine through the guide plate at the tail.

[0019] Furthermore, the chassis mechanism includes a chassis support frame extending forward and backward, and a chassis support plate is fixedly connected to the chassis support frame, and the chassis support plate is composed of a rectangular chassis support plate at the rear end and an L-shaped chassis support plate at the front end, and the L-shaped chassis support plate and the chassis support frame form a gap, and the gap is adapted to the outer shell of the first harvesting mechanism; an outward bracket and a rubber wheel assembly are respectively provided on both sides of the chassis support frame, and the rubber wheel assembly includes a first motor frame arranged on the side of the chassis support frame, a chassis drive motor arranged on the inner side of the first motor frame, a first chassis synchronous pulley driven by the chassis drive motor, symmetrically arranged rubber wheels, and a rubber wheel drive motor connected to the rubber wheel transmission, the rubber wheel drive motor can adjust the speed, thereby adjusting the speed of the rubber wheel to achieve the purpose of turning or turning on the spot, the outward bracket connects the rubber wheel to the chassis support frame by bolts, and each rubber wheel is connected to the chassis through the outward bracket on the chassis, thereby increasing the distance between the two lateral wheels and improving the stability of the machine during movement; the chassis support frame is connected to the connecting frame.

[0020] Furthermore, the L-shaped chassis support plate is provided with a second motor frame, a drive motor arranged on the inner side of the second motor frame, and a second chassis synchronous pulley transmission-connected to the drive motor, and the second chassis synchronous pulley is connected to the conveying roller synchronous pulley through a synchronous belt.

[0021] Furthermore, the chassis mechanism also includes a battery rack for accommodating batteries, which is arranged at the rear of the chassis support frame. A small hole is opened on the chassis support frame, and the battery rack is fixedly connected to the small hole of the chassis support frame by bolts.

[0022] Furthermore, the hopper mechanism includes a receiving hopper arranged below the stripping and sorting mechanism, a hopper mechanism shell side plate arranged on both sides of the receiving hopper, and a connecting rod and a support plate. A hole is opened on one side of the shell side plate, and the size of the hole is adapted to the receiving hopper. After the receiving hopper collects a certain amount of peas, the receiving hopper can be taken out through the hole, and the peas can be taken out and put back into the receiving hopper for re-operation. One end of the connecting rod is fixedly connected to the bottom edge of the support plate, and the other end is fixedly connected to the chassis support plate. The bottom of the support plate is also fixedly connected to the top edge of the hopper mechanism shell side plate, and the top of the support plate is used to place the shell side plate. The receiving hopper is arranged at the lower side of the sorting screen in the stripping and sorting mechanism, and is used for receiving the peas sorted from the stripping and sorting mechanism. The side plate of the hopper mechanism shell is used for protecting the entire hopper mechanism. The connecting rod and the support plate are connected to the chassis at the bottom, and the support plate is connected to the stripping and sorting mechanism at the top. The support plate is fixed to the side plate of the hopper mechanism shell to strengthen the rigidity of the hopper mechanism and fix the position of the stripping and sorting mechanism.

[0023] Furthermore, the hopper mechanism also includes a reinforcing rod and a reinforcing plate which are horizontally pulled between the two hopper mechanism shell side plates to strengthen the rigidity of the entire structure. The reinforcing rod is arranged at the front end of the hopper mechanism to stabilize the machine structure, and the reinforcing plate is arranged at the rear end of the hopper mechanism to stabilize the stripping machine and prevent dust and other impurities from splashing into the hopper mechanism. In actual complex working conditions, the reinforcing rod and the reinforcing plate will bear tensile force or generate thrust, which stabilizes the machine structure and increases the structural rigidity. At the same time, the reinforcing plate is located at the rear end of the hopper mechanism to prevent foreign dust and other impurities from flying in.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1) The invention proposes a small pea plant picking and stripping machine based on four-wheel direct drive. The chassis mechanism, harvesting mechanism, conveying mechanism, stripping and sorting mechanism and hopper mechanism developed by advanced mechanical design technology have the ability to move stably and flexibly and operate efficiently in complex and changeable farmland;

[0026] 2) The invention proposes a small pea plant picking and stripping machine based on four-wheel direct drive, which is designed to effectively cope with various mountain terrains, significantly improve the efficiency of pea harvesting, reduce manual labor, and thus improve the economic benefits of pea crops;

[0027] 3) The present invention makes full use of the portability and sensitivity of small agricultural machinery and the automation of the picking mechanism, can meet the needs of movement and operation under a variety of complex terrain conditions, and realizes efficient unmanned pea picking and peeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of a small pea plant picking and stripping machine based on four-wheel direct drive in the present invention;

[0029] Figure 2 It is a schematic diagram of the chassis structure;

[0030] Figure 3 It is a schematic diagram of the structure of the harvesting mechanism;

[0031] Figure 4 It is a schematic diagram of the transmission mechanism structure;

[0032] Figure 5 It is a schematic diagram of the structure of the peeling and sorting mechanism;

[0033] Figure 6 It is a schematic diagram of the hopper mechanism;

[0034] Description of the markings in the figure:

[0035] 1-chassis mechanism, 2-harvesting mechanism, 3-transmission mechanism, 4-peeling and sorting mechanism, 5-hopper mechanism, 101-chassis support frame, 102-chassis support plate, 103-rubber wheel assembly, 104-battery frame, 105-first chassis synchronous pulley, 106-second chassis synchronous pulley, 107-extension bracket, 201-connecting frame, 202-first harvesting mechanism shell, 2021-first plate, 2022-second plate, 2023-third plate, 203-spiral feeding rod group, 204-fixed frame, 205-drum roller, 206-feeding rod synchronous pulley, 207-drum plate, 208-drum tube, 209-drum center axis, 210-drum synchronous pulley, 211-torsion double spring, 212-second harvesting mechanism shell, 301-conveyor belt, 302-conveyor belt roller, 303-plum blossom coupling, 304-cylindrical pin, 305-conveyor roller synchronous pulley, 306-connector, 401-shell side plate, 402-stripping roller, 403-sorting screen, 404-guide plate, 405-stripping roller side plate, 406-support tube, 407-drum drive motor, 501-receiving hopper, 502-hopper mechanism shell side plate, 503-reinforcement rod, 504-reinforcement plate, 505-connecting rod, 506-support plate. DETAILED DESCRIPTION

[0036] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. The following embodiments are implemented based on the above technical solution of the present invention, and provide detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to the following embodiments.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0039] In the following embodiments, if there is no special description of raw materials or processing technology, it means that they are all conventional commercially available raw materials or conventional processing technologies in the field. If there is no special description of functional components or structures, it means that they are all conventional components or conventional structures used in the field to achieve corresponding functions.

[0040] Example:

[0041] Figure 1 FIG. 1 is a schematic diagram of the structure of a small pea plant picking and stripping machine based on four-wheel direct drive in this embodiment. Figure 1As can be seen in the figure, the small pea plant picking and stripping machine based on four-wheel direct drive includes a movable chassis mechanism 1, and a harvesting mechanism 2, a conveying mechanism 3, a stripping and sorting mechanism 4, and a hopper mechanism 5 respectively connected to the chassis mechanism 1;

[0042] The chassis mechanism 1 is the core of the entire machine movement, and its structure is as follows Figure 2 As shown, it includes a chassis support frame 101 extending forward and backward, and a chassis support plate 102 is fixedly connected to the chassis support frame 101. The chassis support plate 102 is composed of a rectangular chassis support plate at the rear end and an L-shaped chassis support plate at the front end. The L-shaped chassis support plate and the chassis support frame 101 form a gap, and the gap is adapted to the first harvesting mechanism shell 202; outward brackets 107 and rubber wheel assemblies 104 are respectively provided on both sides of the chassis support frame 101. The rubber wheel assembly 104 includes a first motor frame arranged on the side of the chassis support frame 101, a chassis drive motor arranged on the inner side of the first motor frame, and a first chassis synchronous pulley 10 driven by the chassis drive motor. 5. Four symmetrically arranged rubber wheels and a rubber wheel driving motor connected to the four rubber wheels. The rubber wheel driving motor can adjust the speed, thereby adjusting the speed of the four rubber wheels to achieve the purpose of turning or turning on the spot. The outward bracket 107 connects the rubber wheel to the chassis support frame 101 through bolts. Each rubber wheel is connected to the chassis through the outward bracket on the chassis, thereby increasing the distance between the two lateral wheels and improving the stability of the machine during movement. The side of the chassis support frame 101 and the chassis support plate 102 are also provided with holes. The chassis support frame 101 and the connecting frame 201 are fixedly connected through the holes using bolts. The chassis support frame 101 is connected to the connecting frame 201. The L-shaped chassis support plate is provided with a second motor frame, a driving motor arranged on the inner side of the second motor frame, and a second chassis synchronous pulley 106 connected to the driving motor. The second chassis synchronous pulley 106 is connected to the transmission roller synchronous pulley 305 through a synchronous belt. The chassis mechanism 1 further comprises a battery rack 103 for accommodating batteries, which is arranged at the rear of the chassis support frame 101 . A small hole is opened on the chassis support frame 101 , and the battery rack 103 is fixedly connected to the small hole of the chassis support frame 101 by bolts.

[0043] The harvesting mechanism 2 is the mechanism that directly contacts the external environment among the mechanisms participating in the operation, and is used to harvest peas. Its structure is as follows: Figure 3As shown, it includes a rotatable drum roller 205, a plurality of torsion double springs 211 for harvesting arranged on the drum roller 205, and a second harvesting mechanism shell 212 arranged below the drum roller 205. A fixing frame 204 is arranged on the second harvesting mechanism shell 212. The drum roller 205 is rotatably arranged on the fixing frame 204. The two end rods of the torsion double spring 211 are inclined outwardly along the rotation direction to clamp and push the harvested peas into the second harvesting mechanism shell 212 as the rotation progresses. The drum roller 205 includes a plurality of drum plates 207. , a drum tube 208 surrounding the multiple drum plates 207, and a drum center axis 209 passing through the center of the multiple drum plates 207, one end of the drum center axis 209 passes through the fixed frame 204, and is provided with a drum plate synchronous pulley 210, and a torsion double spring 211 is fixed in a row on the drum tube 208, which plays a harvesting role during the rotation of the drum; a spiral feeding rod group 203 is provided in the second harvesting mechanism shell 212, and the power of the motor is obtained by the synchronous pulley to drive the spiral feeding rod to rotate, and the collected peas are transferred to the transmission mechanism. The spiral feed rod assembly 203 includes a feed screw that is rotatably arranged in the second harvesting mechanism housing 212, and a feed rod synchronous pulley 206 that is transmission-connected to the feed screw. The feed rod synchronous pulley 206 includes a first feed rod synchronous pulley and a second feed rod synchronous pulley that are coaxially connected. The first feed rod synchronous pulley is connected to the drum plate synchronous pulley 210, and the second feed rod synchronous pulley is connected to the first chassis synchronous pulley 105 through corresponding synchronous belt transmission. The drum roller 205 is supported by a plurality of drum plates 207, surrounded by drum tubes 208, with a drum center axis 209 in the middle as a power input unit, and is driven by a chassis drive motor.

[0044] The conveying mechanism 3 is an important mechanism that connects the harvesting mechanism 2 and the stripping and sorting mechanism 4, and is used to convey the harvested peas to the stripping and sorting mechanism 4. Its structure is as follows: Figure 4As shown, it includes an inclined conveyor belt 301, and conveyor belt rollers 302 arranged in parallel at both ends of the conveyor belt 301, the lower conveyor belt roller 302 is connected to the harvesting mechanism 2, and the upper conveyor belt roller 302 is connected to the stripping and sorting mechanism 4. The conveyor belt 301 is provided with a plurality of sidewalls arranged at intervals along the conveying direction, and the sidewalls extend laterally along the conveyor belt. The conveyor mechanism 3 obtains the power of the motor through the synchronous pulley 206 of the feeding rod, drives the upper conveyor belt roller 302 to rotate, thereby driving the entire conveyor belt to rotate, and the conveyor belt with baffle can more easily transport the pea plants or pea pods from the harvesting mechanism 2 to the conveyor mechanism 3. The conveying mechanism 3 also includes a coupling 303 and a cylindrical pin 304 which are connected in sequence to one end of the upper conveyor belt roller 302, and connectors 306 arranged at both ends of the lower conveyor belt roller 302; a first harvesting mechanism housing 202 is also provided on one side of the second harvesting mechanism housing 212, located downstream of the conveying direction of the spiral feeding rod group 203, and the first harvesting mechanism housing 202 is connected to the lower conveyor belt roller 302. The first harvesting mechanism housing 202 includes a first plate 2021 and a second plate 2022 which are arranged in parallel, and a third plate 2023 which connects the first plate 2021 and the second plate 2022 by six-sided nuts and bolts, a connecting frame 201 is fixedly connected to the second plate 2022, a first connecting hole is opened on the connecting frame 201, a second connecting hole opposite to the first connecting hole is opened on the first plate 2021, and the connectors 306 at both ends of the lower conveyor belt roller 302 are respectively penetrated into the first connecting hole and the second connecting hole. The outer shell of the harvesting mechanism is made up of multiple panels, which serve to fix the positions of various components and gather pea plants.

[0045] The stripping and sorting mechanism 4 is the core mechanism for separating pea pods and pea grains, and is used for stripping and sorting pea grains and pea pods. Figure 5As shown, it includes a shell side plate 401 arranged in parallel to fix the entire stripping and sorting mechanism 4, a stripping roller 402 rotatably arranged between the shell side plates 401, and a sorting screen 403 arranged below the stripping roller 402 and matching with the gap at the lower side of the stripping roller 402, the matching gap between the stripping roller 402 and the sorting screen 403 is adapted to the thickness of the peas, and the aperture of the sorting screen 403 is adapted to the particle size of the peas; one end of the upper conveyor belt roller 302 passes through the shell side plate 401 and is provided with a conveyor roller synchronous pulley 305, and circular holes for sliding support of the cylindrical pin 304 and the conveyor roller synchronous pulley 305 are relatively opened on the shell side plate 401. The stripping roller 402 is restricted and fixed by the outer shell side plates 401 on both sides, and the outer shell side plates are surrounded by support tubes 406, and the support tubes 406 are covered with a rubber casing. The stripping roller 402 extends to the outside of the outer shell side plates 401 and is directly driven by a motor. During the rotation, it can generate greater resistance with the sorting screen 403, thereby stripping the pea pods from the conveying mechanism 3. The stripping and sorting mechanism 4 also includes a stripping roller side plate 405 arranged in parallel, a plurality of support tubes 406 arranged between the stripping roller side plates 405 along the circumference of the stripping roller 402, a roller drive motor for driving the stripping roller 402, and a guide plate 404 arranged at the tail of the entire stripping and sorting mechanism 4. A roller drive motor 407 is also provided on one side of the stripping roller side plate 405. The roller drive motor 407 passes through the outer shell side plate 401 and is connected to the roller drive motor. The bean pod shells and pea plant seedlings as waste are transmitted to the tail of the stripping and sorting mechanism 4 along the gap between the stripping roller 402 and the sorting screen 403, and are discharged from the entire machine through the guide plate 404 at the tail.

[0046] The hopper mechanism 5 is a mechanism for collecting peas from the stripping and sorting mechanism, and has a storage function for collecting peas. Figure 6As shown, it includes a receiving hopper 501 arranged below the stripping and sorting mechanism 4, a hopper mechanism shell side plate 502 arranged on both sides of the receiving hopper 501, and a connecting rod 505 and a support plate 506. A hole is opened on one side of the shell side plate 502, and the size of the hole is adapted to the receiving hopper 501. After the receiving hopper 501 collects a certain amount of peas, the receiving hopper 501 can be taken out through the hole, and the peas can be taken out and put back into the receiving hopper 501 for re-operation. One end of the connecting rod 505 is fixedly connected to the bottom edge of the support plate 506, and the other end is fixedly connected to the chassis support plate 102. The bottom of the support plate 506 is also fixedly connected to the top edge of the hopper mechanism shell side plate 502, and the top of the support plate 506 is used to place the shell side plate 401. The receiving hopper 501 is arranged at the lower side of the sorting screen 403 in the stripping and sorting mechanism 4, and is used to receive the peas sorted from the stripping and sorting mechanism 4. The side plate 502 of the hopper mechanism shell is used to protect the entire hopper mechanism 5. The connecting rod 505 and the support plate 506 are connected to the chassis support plate 102 at the bottom and the stripping and sorting mechanism 4 at the top, and the support plate 506 is fixed to the side plate 502 of the hopper mechanism shell to strengthen the rigidity of the hopper mechanism 5 and fix the position of the stripping and sorting mechanism 4. The hopper mechanism 5 also includes a reinforcing rod 503 and a reinforcing plate 504 which are horizontally pulled between the two hopper mechanism shell side plates 502 to strengthen the rigidity of the entire structure. The reinforcing rod 503 is arranged at the front end of the hopper mechanism 5, and the reinforcing plate 504 is arranged at the rear end of the hopper mechanism 5. In actual complex working conditions, the reinforcing rod 503 and the reinforcing plate 504 will bear tensile force or generate thrust, which plays a role in stabilizing the machine structure and increasing the structural rigidity. At the same time, the reinforcing plate 504 is located at the rear end of the hopper mechanism 5 to prevent foreign dust and other impurities from flying in.

[0047] The operation process of the small pea plant picking and stripping machine based on four-wheel direct drive in the present embodiment in the field is as follows:

[0048] When working in the field, the rubber wheel assembly 103 drives the entire stripping machine to move along the field ridges. At the same time, the chassis drive motor on the inner side of the first motor frame of the chassis mechanism 1 rotates, and drives the drum roller 205 of the harvesting mechanism 2 to rotate through the synchronous belt. The torsion double spring 211 on the drum roller 205 hooks the pea plants on the field ridges and rolls them into the harvesting mechanism shell 202; the drive of the chassis drive motor on the inner side of the first motor frame will also drive the spiral feeding rod group 203 in the harvesting mechanism shell to rotate through the synchronous belt. As the feeding screw rotates, the pea pods and part of the pea plants torn off by the torsion double spring 211 will be fed into the conveying mechanism 3.

[0049] Since the conveyor belt roller 302 on the conveying mechanism 3 is always driven by the driving motor on the inner side of the second motor frame, the conveyor belt 301 will be driven to move, and the pea pods and part of the pea plants entering the conveying mechanism 3 will be continuously transported upward to the stripping and sorting mechanism 4.

[0050] The stripping roller 402 in the stripping and sorting mechanism 4 always keeps rotating. After the pea pods and part of the pea plants enter the stripping and sorting mechanism 4, they will first enter the gap between the stripping roller 402 and the sorting screen 403. Through the rotation of the stripping roller 402, a large resistance is generated with the sorting screen 403, and the pea pods are crushed. The detached beans fall through the sorting screen 403, and the unnecessary pods and part of the pea plants will follow the rotation of the stripping roller 402, pass through the gap between the stripping roller 402 and the sorting screen 403 to reach the guide plate 404 at the tail, and be discharged out of the machine.

[0051] The peas separated by the stripping and sorting mechanism 4 fall into the hopper mechanism 5 through the sorting screen 403 for collection. A hole is provided on one side of the hopper mechanism housing side plate 502, and after the receiving hopper 501 collects a certain amount of peas, the receiving hopper 501 can be taken out through the hole, and the peas can be taken out and put back into the receiving hopper 501 for re-operation.

[0052] If encountering complex terrain or a road that is inconvenient to pass, the rubber wheel driving motor on the chassis mechanism 1 can adjust the speed, thereby adjusting the speed of the four rubber wheel assemblies 103 to achieve the purpose of turning or turning around on the spot.

[0053] The small pea plant picking and peeling machine based on four-wheel direct drive designed for this purpose is portable and flexible. It is dedicated to operating in complex terrains and realizes the functions of picking, sorting and peeling peas, thereby reducing manual labor and improving the economic benefits of pea cultivation.

[0054] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A small pea plant picking and stripping machine based on four-wheel direct drive, characterized in that: include A movable chassis mechanism (1), and a harvesting mechanism (2), a conveying mechanism (3), a stripping and sorting mechanism (4), and a hopper mechanism (5) respectively connected to the chassis mechanism (1); The harvesting mechanism (2) is used for harvesting peas, and comprises a rotatable drum roller (205), a plurality of torsion double springs (211) arranged on the drum roller (205), and a second harvesting mechanism shell (212) arranged below the drum roller (205); a fixing frame (204) is arranged on the second harvesting mechanism shell (212); the drum roller (205) is rotatably arranged on the fixing frame (204); and the two end rods of the torsion double spring (211) are arranged to tilt outwardly along the rotation direction so as to clamp and push the harvested peas into the second harvesting mechanism shell (212) as the rotation proceeds; The conveying mechanism (3) is used to convey the harvested peas to the stripping and sorting mechanism (4); The stripping and sorting mechanism (4) is used for stripping and sorting pea grains and pea pods; The hopper mechanism (5) is used to collect peas.

2. The small pea plant picking and stripping machine based on four-wheel direct drive according to claim 1 is characterized in that: The drum roller (205) comprises a plurality of drum plates (207), a drum tube (208) surrounding the plurality of drum plates (207), and a drum center shaft (209) passing through the center of the plurality of drum plates (207); one end of the drum center shaft (209) passes through the fixing frame (204) and is provided with a drum plate synchronous pulley (210); the torsion double springs (211) are fixed on the drum tube (208) in a row; a spiral feeding rod group (210) is provided in the housing (212) of the second harvesting mechanism; 203), the spiral feeding rod group (203) includes a feeding screw rotatably arranged in the second harvesting mechanism housing (212), and a feeding rod synchronous pulley (206) fixedly connected to the feeding screw, the feeding rod synchronous pulley (206) includes a first feeding rod synchronous pulley and a second feeding rod synchronous pulley coaxially connected, the first feeding rod synchronous pulley and the drum plate synchronous pulley (210), the second feeding rod synchronous pulley and the first chassis synchronous pulley (105) are connected through corresponding synchronous belt transmissions.

3. The small pea plant picking and stripping machine based on four-wheel direct drive according to claim 2 is characterized in that: The conveying mechanism (3) comprises an inclined conveyor belt (301), and conveyor belt rollers (302) arranged in parallel at both ends of the conveyor belt (301), one above and one below, the lower conveyor belt roller (302) being connected to a harvesting mechanism (2), and the upper conveyor belt roller (302) being connected to a stripping and sorting mechanism (4), and the conveyor belt (301) is provided with a plurality of side guards arranged at intervals along the conveying direction, and the side guards extend transversely along the conveyor belt.

4. The small pea plant picking and stripping machine based on four-wheel direct drive according to claim 3 is characterized in that: The conveying mechanism (3) further comprises a coupling (303) and a cylindrical pin (304) which are sequentially connected to one end of the upper conveyor belt roller (302), as well as connectors (306) arranged at both ends of the lower conveyor belt roller (302); a first harvesting mechanism shell (202) is also arranged on one side of the second harvesting mechanism shell (212), which is located downstream of the spiral feeding rod group (203) in the conveying direction, and the first harvesting mechanism shell (202) is connected to the lower conveyor belt roller (302), and the first harvesting mechanism shell (202) includes The invention comprises a first plate member (2021) and a second plate member (2022) which are arranged in parallel, and a third plate member (2023) which connects the first plate member (2021) and the second plate member (2022), wherein a connecting frame (201) is fixedly connected to the second plate member (2022), a first connecting hole is provided on the connecting frame (201), a second connecting hole which is opposite to the first connecting hole is provided on the first plate member (2021), and connecting heads (306) at both ends of the lower conveyor belt roller (302) are respectively inserted into the first connecting hole and the second connecting hole.

5. The small pea plant picking and stripping machine based on four-wheel direct drive according to claim 4 is characterized in that: The stripping and sorting mechanism (4) comprises a shell side plate (401) arranged in parallel, a stripping roller (402) rotatably arranged between the shell side plates (401), and a sorting screen (403) arranged below the stripping roller (402) and matching with the gap at the lower side of the stripping roller (402), wherein the matching gap between the stripping roller (402) and the sorting screen (403) is adapted to the thickness of the peas, and the aperture of the sorting screen (403) is adapted to the particle size of the peas; one end of the upper conveyor belt roller (302) passes through the shell side plate (401) and is provided with a conveyor roller synchronous pulley (305), and circular holes for slidingly supporting a cylindrical pin (304) and a conveyor roller synchronous pulley (305) are relatively provided on the shell side plate (401).

6. The small pea plant picking and stripping machine based on four-wheel direct drive according to claim 5 is characterized in that: The stripping and sorting mechanism (4) further comprises stripping roller side plates (405) arranged in parallel, a plurality of support tubes (406) arranged between the stripping roller side plates (405) along the circumference of the stripping roller (402), a roller drive motor for driving the stripping roller (402), and a guide plate (404) arranged at the rear of the entire stripping and sorting mechanism (4), and a roller drive motor (407) is also arranged on one side of the stripping roller side plate (405), and the roller drive motor (407) passes through the outer shell side plate (401) and is in driving connection with the roller drive motor.

7. The small pea plant picking and stripping machine based on four-wheel direct drive according to claim 5, characterized in that: The chassis mechanism (1) comprises a chassis support frame (101) extending forward and backward, a chassis support plate (102) being fixedly connected to the chassis support frame (101), the chassis support plate (102) being composed of a rectangular chassis support plate at the rear end and an L-shaped chassis support plate at the front end, the L-shaped chassis support plate and the chassis support frame (101) forming a gap, the gap being compatible with the first harvesting mechanism housing (202); a second motor frame, a driving motor arranged on the inner side of the second motor frame, and a second chassis synchronous pulley (106) drivingly connected to the driving motor are provided on the L-shaped chassis support plate, the second chassis synchronous pulley (106) being connected to the transmission roller synchronous pulley (305) via a synchronous belt; the chassis An outward extension bracket (107) and a rubber wheel assembly (104) are respectively provided on both sides of the chassis support frame (101), the rubber wheel assembly (104) comprising a first motor frame arranged on the side of the chassis support frame (101), a chassis drive motor arranged on the inner side of the first motor frame, a first chassis synchronous pulley (105) driven by the chassis drive motor, a rubber wheel, and a rubber wheel drive motor connected to the rubber wheel in a transmission manner, the outward extension bracket (107) connects the rubber wheel to the chassis support frame (101) by bolts; the side of the chassis support frame (101) and the chassis support plate (102) are also provided with holes, and the chassis support frame (101) and the connecting frame (201) are fixedly connected by bolts through the holes.

8. The small pea plant picking and stripping machine based on four-wheel direct drive according to claim 7, characterized in that: The chassis mechanism (1) further comprises a battery rack (103) for accommodating batteries, which is arranged at the rear of the chassis support frame (101); a small hole is provided on the chassis support frame (101); and the battery rack (103) is fixedly connected to the small hole of the chassis support frame (101) by means of bolts.

9. The small pea plant picking and stripping machine based on four-wheel direct drive according to claim 1, characterized in that: The hopper mechanism (5) comprises a receiving hopper (501) arranged below the stripping and sorting mechanism (4), hopper mechanism shell side plates (502) arranged on both sides, a connecting rod (505) and a support plate (506); a hole is opened on one side of the shell side plate (502); the size of the hole is adapted to the receiving hopper (501); one end of the connecting rod (505) is fixedly connected to the bottom edge of the support plate (506), and the other end is fixedly connected to the chassis support plate (102); the bottom of the support plate (506) is also fixedly connected to the top edge of the hopper mechanism shell side plate (502); the top of the support plate (506) is used to place the shell side plate (401).

10. The small pea plant picking and stripping machine based on four-wheel direct drive according to claim 1, characterized in that: The hopper mechanism (5) further comprises a reinforcing rod (503) and a reinforcing plate (504) which are horizontally stretched between two hopper mechanism outer shell side plates (502); the reinforcing rod (503) is arranged at the front end of the hopper mechanism (5), and the reinforcing plate (504) is arranged at the rear end of the hopper mechanism (5).

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