A type of crop combine harvester

Abstract

This invention discloses a crop combine harvester, including an engine, frame, harvesting platform, angle adjustment mechanism, pusher blade, conveying roller, rotating clamping mechanism, feeding and conveying mechanism, and mixing and threshing mechanism. The rotating clamping mechanism includes a first roller toothed disc, a first clamping rod, a second roller toothed disc, and a second clamping rod. The first and second clamping rods are used to clamp and convey the crops upwards during rotation. The conveying roller of this invention, through rotation, transports the shoveled crop stalks to the rotating clamping mechanism. The first and second clamping rods of the rotating clamping mechanism precisely clamp the stalks through alternating engagement. The stalks are then conveyed to the mixing and threshing mechanism via the feeding and conveying mechanism for fruit separation. Subsequently, the fruits are conveyed to the lifting mechanism via the unloading and conveying mechanism and a vibrating screen, and then fed into the collection box via a sliding chute. This achieves efficient crop conveying, automatic threshing, fruit separation, and clean collection, effectively improving the harvester's operating efficiency.

Description

Technical Field

[0001] This invention relates to the field of agricultural harvesting machinery, and more particularly to a crop combine harvester. Background Technology

[0002] A crop harvester is an agricultural machine used to shovel, transport, thresh, and collect crops. Through the collaboration of multi-functional modules, it greatly improves agricultural production efficiency.

[0003] In existing technologies, traditional harvesters are prone to crop drop, accumulation, or blockage during the process of pulling crop stalks out of the soil and transporting them, thus affecting the continuity and stability of crop transport. In addition, during the fruit threshing process, the waste stalks after threshing often cannot be automatically discharged and require manual cleaning, resulting in high labor intensity and affecting the harvester's operating efficiency. Furthermore, during the fruit collection and screening process, the fruit is often mixed with impurities such as dust and stalk fragments, requiring subsequent fruit washing and impurity separation operations, which also affects the harvesting efficiency of crops.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Summary of the Invention

[0005] The technical problem to be solved by this invention is to provide a crop combine harvester that can continuously shovel and deliver crops stably, automatically remove fruit and discharge stalks, and effectively improve work efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution: a crop combine harvester, comprising a frame, a harvesting table, an angle adjustment mechanism, a pushing shovel, a conveying roller, a rotating clamping mechanism, a feeding and conveying mechanism, and a mixing and de-harvesting mechanism;

[0007] The bottom of the frame is provided with a walking drive mechanism, which is used to drive the frame to move. The end of the frame is provided with a harvesting table. The angle adjustment mechanism is provided on the frame and connected to the harvesting table. The angle adjustment mechanism is used to adjust the swing angle of the harvesting table.

[0008] The pusher blade is located at the end of the harvesting platform, and the pusher blade is used to loosen and lift the crops on the ground as the frame moves;

[0009] Several of the conveying rollers are respectively disposed at the rear end of the pushing shovel, and the rotating clamping mechanism is disposed above the conveying rollers. The conveying rollers can rotate relative to the harvesting table. The conveying rollers are used to roll and transport the shoveled crops into the rotating clamping mechanism.

[0010] The rotary clamping mechanism includes a first roller toothed disc, a first clamping rod, a second roller toothed disc, and a second clamping rod. Multiple first roller toothed discs are connected by a first rotating shaft, and multiple second roller toothed discs are connected by a second rotating shaft. The first roller toothed disc and the second roller toothed disc are connected by tooth groove meshing.

[0011] N first clamping rods are arranged at equal angles along the circumference of the first roller toothed disc, and 2N second clamping rods are arranged at equal angles along the circumference of the second roller toothed disc. The first clamping rods and the second clamping rods are used to clamp and feed the crops upward as they rotate.

[0012] The feeding and conveying mechanism is located on the harvesting platform at the side end of the rotating clamping mechanism, and the mixing and fruit-removing mechanism is located at the discharge end of the feeding and conveying mechanism. The feeding and conveying mechanism is used to receive crops and transport them to the mixing and fruit-removing mechanism for fruit removal.

[0013] In the crop combine harvester described above, the area where the first roller toothed disc is connected to the first clamping rod extends outward to form a first convex tooth, and a first arc-shaped groove is formed between two adjacent first convex teeth.

[0014] The area where the second roller toothed disc is connected to the second clamping rod extends outward to form a second convex tooth, and a second arc-shaped groove is formed between two adjacent second convex teeth.

[0015] Using the above-mentioned technical solutions, in the crop combine harvester, the mixing and threshing mechanism includes a mixing chamber, a first screen, a rotating shaft, and mixing blades;

[0016] The mixing chamber is mounted on the frame, and the feed inlet at the end of the mixing chamber is located below the discharge end of the feeding and conveying mechanism to receive crops to be dehulled.

[0017] The mixing chamber is provided with a decontamination port on the side away from the feed inlet. The rotating shaft is located inside the mixing chamber, and a conveying deflection angle is formed between the rotating shaft and the central axis of the mixing chamber. The angle of the conveying deflection angle is 5-20°.

[0018] The stirring blades are arranged along the extension direction of the rotating shaft. The stirring blades are used to stir and remove the fruits on the crops as the rotating shaft rotates, and to convey the crop stems that have been de-fruited to the discharge port along the conveying angle for discharge.

[0019] The first screen is located at the bottom of the mixing chamber and is used to screen the fruits separated from the crops by mixing.

[0020] The crop combine harvester described above, employing the aforementioned technical solutions, also includes a feeding and conveying mechanism, a vibrating screen, a lifting mechanism, a material chute, and a receiving box.

[0021] The feeding conveying mechanism is located below the mixing chamber. The feeding conveying mechanism is used to receive the fruit falling from the first screen. The vibrating screen is located at the tail of the feeding conveying mechanism. The lifting mechanism is located at the end of the vibrating screen. The vibrating screen forms an inclined angle with the horizontal plane so that the fruit is conveyed into the lifting mechanism under the action of gravity and vibration.

[0022] The material feeding trough is located above the machine frame. The feeding end of the material feeding trough is connected to the lifting mechanism. The lifting mechanism is used to lift and transport the fruit to the feeding end of the material feeding trough. The receiving box is located on the machine frame and is connected to the discharging end of the material feeding trough. The material feeding trough has a slope structure with a gradually decreasing height along the direction close to the receiving box.

[0023] In the crop combine harvester described above, the lifting mechanism includes a cover, a chain conveyor belt, and a hopper;

[0024] The cover is located at the rear of the frame. The cover has an enclosed structure. The chain conveyor belt is arranged around the circumference of the cover. The cover is used to enclose the chain conveyor belt. Multiple hoppers are arranged at intervals along the extension direction of the chain conveyor belt. The hoppers are used to load fruits.

[0025] The height of the chain conveyor belt located in the upper part of the casing gradually decreases along its conveying direction, so that the opening of the hopper gradually opens as the chain conveyor belt moves to unload materials.

[0026] The crop combine harvester described above, employing the aforementioned technical solutions, also includes a cleaning fan. The cleaning fan is positioned above the vibrating screen, with its air inlet facing downwards. The cleaning fan has a cleaning outlet for discharging straw that has been separated from the fruit by the vibrating screen through vibration.

[0027] The crop combine harvester described above, employing the above-mentioned technical solutions, also includes a combined drive mechanism, which is synchronously driven and connected to the conveying roller, the rotating clamping mechanism, the feeding and conveying mechanism, and the mixing and threshing mechanism.

[0028] The combined drive mechanism includes an engine, a first sprocket assembly, a gearbox, a belt drive assembly, a second sprocket assembly, a third sprocket assembly, and a fourth sprocket assembly;

[0029] The engine is mounted on the frame, and the output end of the engine is connected to the rotating shaft of the stirring and fruit-removing mechanism via the first sprocket assembly.

[0030] The input shaft of the gearbox is connected to the first sprocket assembly, and the output shaft of the gearbox is connected to one side of the feeding conveyor mechanism via the pulley drive assembly.

[0031] The other end of the feeding and conveying mechanism is connected to the shaft end of the first roller toothed disc of the rotating clamping mechanism through the second sprocket assembly, and the shaft end of the first roller toothed disc is also connected to the second roller toothed disc through the third sprocket assembly.

[0032] The other side shaft end of the first roller toothed disc is connected to the end of the conveying roller via the fourth sprocket assembly.

[0033] In the crop combine harvester described above, the angle adjustment mechanism is a hydraulic push rod, the fixed end of which is connected to the frame, and the movable end of which is connected to the harvesting table.

[0034] In the above-mentioned combined harvester, the number of conveying rollers is two sets, and the two sets of conveying rollers are connected by a fifth sprocket assembly.

[0035] The conveying roller is provided with several material-pulling rods along the circumferential direction;

[0036] The conveying roller is provided with disc grass cutters on both sides. The shaft end of the second roller toothed disc is connected to the disc grass cutter via a sixth sprocket assembly. The disc grass cutter is used to cut weeds on the path.

[0037] Using the above-mentioned technical solutions, in the crop combine harvester, the number of the first convex tooth and the first arc-shaped groove is four, and the number of the second convex tooth and the second arc-shaped groove is eight.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] The conveying roller of this invention smoothly transports the shoveled crop stalks to the rotating clamping mechanism through rotation. The first and second clamping rods of the rotating clamping mechanism precisely clamp the crop stalks through alternating engagement, preventing slippage or accumulation, and then transport the crop stalks to the feeding conveying mechanism. The feeding conveying mechanism can transport the crop stalks to the mixing chamber. Through the cooperation of the mixing blades and the rotating shaft, the fruit can be efficiently separated from the stalks. After fruit removal, the stalks are pushed by the mixing blades and gradually move along the conveying deflection angle to the side of the mixing chamber away from the feed inlet, and are smoothly discharged through the impurity removal port. This design enables automated cleaning and continuous discharge of stems after fruit removal, avoiding the need for manual cleaning due to stem accumulation. The first screen at the bottom of the mixing chamber filters out the fruit, separating it from stems and debris. The removed fruit is then conveyed to a vibrating screen via a feeding mechanism. Under gravity and vibration, it automatically removes attached dust and impurities. Subsequently, a lifting mechanism elevates the fruit to a sliding chute, where its sloping structure smoothly feeds it into a collection box for final collection. This setup enables efficient crop transport, automated fruit removal, fruit separation, and clean collection, thereby improving the harvester's operational efficiency and automation level. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0042] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0043] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0044] Figure 3 This is a schematic diagram of the installation structure of the angle adjustment mechanism of the present invention;

[0045] Figure 4 This is a schematic diagram of the harvester mounting structure of the present invention;

[0046] Figure 5 This is a schematic diagram of the mounting structure of the combined drive mechanism of the present invention;

[0047] Figure 6 This is a schematic diagram of the installation structure of the rotary clamping mechanism of the present invention;

[0048] Figure 7 This is a schematic diagram of the mixing chamber structure of the present invention;

[0049] Figure 8 This is a schematic diagram of the internal structure of the mixing chamber of the present invention;

[0050] Figure 9 This is a schematic diagram of the lifting mechanism of the present invention. Detailed Implementation

[0051] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0052] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0053] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0054] like Figures 1 to 9As shown, this embodiment of the invention provides a crop combine harvester, including a frame 1, a harvesting platform 11, an angle adjustment mechanism 12, a pusher blade 2, a conveying roller 3, a rotating clamping mechanism 4, a feeding and conveying mechanism 5, and a mixing and threshing mechanism 6. A walking drive mechanism 13 is provided at the bottom of the frame 1 to drive the frame 1. The harvesting platform 11 is located at the end of the frame 1. The angle adjustment mechanism 12 is mounted on the frame 1 and connected to the harvesting platform 11, and is used to adjust the swing angle of the harvesting platform 11. The pusher blade 2 is located at the end of the harvesting platform 11 and is used to move with the harvesting platform 11. The movement of the frame 1 loosens and lifts the crops on the ground; the walking drive mechanism 13 at the bottom of the frame 1 provides power for the frame 1 to move, enabling it to move flexibly in the field and adapt to various terrain conditions. It should be noted that in this embodiment, the walking drive mechanism 13 is a tracked walking mechanism; the angle adjustment mechanism 12 can adjust the swing angle of the harvesting table 11 to adapt to different working terrains and crop heights, ensuring that the pusher blade 2 always keeps in close contact with the ground to lift the crop stalks from the soil; when the harvester stops working, the angle adjustment mechanism 12 can lift the harvesting table 11 and raise the pusher blade 2 from the ground to avoid the pusher blade 2 contacting the ground and causing wear.

[0055] Several conveying rollers 3 are respectively disposed at the rear end of the pushing shovel 2, and the rotating clamping mechanism 4 is disposed above the conveying rollers 3. The conveying rollers 3 can rotate relative to the harvesting table 11. The conveying rollers 3 are used to roll and transport the shoveled crops into the rotating clamping mechanism 4. The conveying rollers 3 can roll and transport the shoveled crops through rotation, so that the crops can move smoothly backward and ensure that the crops can flow smoothly into the subsequent processing stage.

[0056] like Figures 4 to 6As shown, the rotating clamping mechanism 4 includes a first roller toothed disc 41, a first clamping rod 42, a second roller toothed disc 43, and a second clamping rod 44. Multiple first roller toothed discs 41 are connected by a first rotating shaft 45, and multiple second roller toothed discs 43 are connected by a second rotating shaft 46. The first roller toothed discs 41 and the second roller toothed discs 43 are connected by tooth groove meshing. N first clamping rods 42 are arranged at equal angles along the circumference of the first roller toothed discs 41, and 2N second clamping rods 44 are arranged at equal angles along the circumference of the second roller toothed discs 43. The first clamping rods 42 and the second clamping rods 44 are used to clamp and convey crops upwards during rotation. The first roller toothed discs 41 and the second roller toothed discs 43 in the rotating clamping mechanism 4 are connected by tooth groove meshing to ensure synchronous rotation, thereby improving the uniformity and coordination of clamping and conveying actions. The N first clamping rods 42 on the first roller toothed disc 41 and the 2N second clamping rods 44 on the second roller toothed disc 43 are distributed at equal angles along the circumference. When the crop stalks are conveyed from the conveying roller 3 to the rotating clamping mechanism 4, the first clamping rods 42 and the second clamping rods 44 alternately mesh to accurately clamp the crop stalks. As the first clamping rods 42 and the second clamping rods 44 rotate, the crop can pass through the gap between the first clamping rods 42 and the second clamping rods 44 and be lifted upwards to form a uniform clamping force during rotation, thereby stably clamping the crop stalks, preventing slippage or uneven force, avoiding the crop stalks from falling or shifting due to vibration or gravity, and can adapt to clamping crop stalks of different shapes, ensuring that different types of crop stalks can be stably conveyed, avoiding the problems of low conveying efficiency and material waste caused by stalk slippage, jamming or accumulation in traditional conveying methods. Additionally, it should be noted that the hollow structure formed between the adjacent first clamping rod 42 and second clamping rod 44 allows crops to pass through smoothly without the fruit being damaged.

[0057] The feeding and conveying mechanism 5 is located on the harvesting platform 11 at the side end of the rotating clamping mechanism 4, and the mixing and fruit-removing mechanism 6 is located at the discharge end of the feeding and conveying mechanism 5. The feeding and conveying mechanism 5 is used to receive crops and convey them to the mixing and fruit-removing mechanism 6 for fruit removal. When the crop stalks are conveyed upward by the clamping action of the rotating clamping mechanism 4, the feeding and conveying mechanism 5 can receive the crop stalks and transfer them to the mixing and fruit-removing mechanism 6. The mixing and fruit-removing mechanism 6 can then separate the fruits from the crop stalks through a mixing action, thereby achieving automatic fruit removal.

[0058] like Figure 5As shown, further, the area where the first roller toothed disc 41 is connected to the first clamping rod 42 extends outward to form a first protruding tooth 411, and a first arc-shaped groove 412 is formed between two adjacent first protruding teeth 411. The area where the second roller toothed disc 43 is connected to the second clamping rod 44 extends outward to form a second protruding tooth 431, and a second arc-shaped groove 432 is formed between two adjacent second protruding teeth 431. With this arrangement, when the crop stalk enters the rotating clamping mechanism 4, the first clamping rod 42 and the second clamping rod 44 can always maintain a good meshing state during the rotation process, and provide appropriate clamping space according to the shape and diameter of the stalk, preventing the crop stalk from slipping relative to each other due to unstable clamping, which could cause the crop stalk to fall or be damaged.

[0059] like Figure 1 , Figure 7 and Figure 8As shown, the mixing and fruit-removing mechanism 6 further includes a mixing chamber 61, a first screen 62, a rotating shaft 63, and mixing blades 64. The mixing chamber 61 is mounted on the frame 1. The mixing chamber 61 has a feed inlet 611 at its end, located below the discharge end of the feeding and conveying mechanism 5, for receiving crops to be removed. The mixing chamber 61 has a debriding port 612 on its side away from the feed inlet 611. The rotating shaft 63 is located inside the mixing chamber 61, and a conveying angle α is formed between the rotating shaft 63 and the central axis of the mixing chamber 61. The conveying angle α is 5-20°, and in this embodiment, the conveying angle α is 10°. The stirring blades 64 are arranged along the extension direction of the rotating shaft 63. The stirring blades 64 are used to stir and remove the fruit on the crop as the rotating shaft 63 rotates, and to transport the crop stems that have been removed to the impurity outlet 612 for discharge along the direction of the conveying deflection angle α. The first screen 62 is located at the bottom of the stirring chamber 61 and is used to screen the fruit separated from the crop by stirring. When the crops to be de-fruited are conveyed to the mixing and de-fruiting mechanism 6 by the feeding conveyor 5, they can be conveyed into the mixing chamber 61 through the feed inlet 611. The rotating shaft 63 inside the mixing chamber 61 can be driven to rotate by an external drive device, which in turn drives the mixing blades 64 to rotate at high speed. The mixing blades 64 come into contact with the crop stems as the rotating shaft 63 rotates, so as to apply appropriate mechanical force to the crop stems through agitation, and efficiently separate the fruits attached to the stems. A conveying angle α of 5-20° is formed between the rotating shaft 63 and the central axis of the mixing chamber 61. This setting ensures that the de-fruited stems are properly positioned by the mixing blades 64. Driven by the propulsion, the fruit gradually moves along the direction of the conveying deflection angle α to the side of the mixing chamber 61 away from the feed inlet 611, and is smoothly discharged through the impurity removal port 612. This achieves automated cleaning and continuous discharge of the stalks after fruit removal, avoiding the problem of stalk accumulation requiring manual cleaning. At the same time, the first screen 62 set at the bottom of the mixing chamber 61 can effectively screen the fruit separated from the stalks, separating the fruit from larger stalks or impurities, ensuring that only the fruit passes through the first screen 62 to enter the next processing stage. In this way, efficient linkage between fruit removal, screening and stalk discharge can be achieved, effectively improving the automated operation process and harvesting efficiency of the harvester.

[0060] like Figures 1 to 3As shown, further, it also includes a feeding conveyor 71, a vibrating screen 72, a lifting mechanism 8, a material chute 91, and a receiving box 92. The feeding conveyor 71 is located below the mixing chamber 61 and is used to receive the fruit falling from the first screen 62. The vibrating screen 72 is located at the tail of the feeding conveyor 71. The lifting mechanism 8 is located at the end of the vibrating screen 72. The vibrating screen 72 forms an inclined angle with the horizontal plane so that the fruit is conveyed into the lifting mechanism 8 under the action of gravity and vibration. The material chute 91 is located above the frame 1. The feeding end of the material chute 91 is connected to the lifting mechanism 8. The lifting mechanism 8 is used to lift and convey the fruit to the feeding end of the material chute 91. The receiving box 92 is located on the frame 1 and is connected to the discharge end of the material chute 91. The material chute 91 forms a slope structure with a gradually decreasing height along the direction close to the receiving box 92. After the fruit falls through the first screen 62 at the bottom of the mixing chamber 61, the feeding conveyor 71, located below the mixing chamber 61, receives the fruit and conveys it to the vibrating screen 72. The vibrating screen 72 vibrates, and through its inclined angle with the horizontal plane, the fruit is gradually cleaned and separated from the attached fine impurities or dust under the action of gravity and vibration, and smoothly conveyed to the lifting mechanism 8 at its tail. The lifting mechanism 8 can lift the fruit from a lower position to the feeding end of the sliding trough 91 to complete the connection between horizontal conveying and vertical lifting of the fruit. After the lifting mechanism 8 sends the fruit into the sliding trough 91, the fruit slides along the gradually decreasing slope structure in the sliding trough 91, allowing the fruit to smoothly slide into the collection box 92 for collection. This setting enables the clean, efficient and automated collection of the fruit after the fruit removal process, which not only improves the work efficiency but also reduces the labor intensity of manual labor.

[0061] like Figure 9As shown, the lifting mechanism 8 further includes a cover 81, a chain conveyor belt 82, and a hopper 83. The cover 81 is located at the tail of the frame 1 and has an enclosing structure. The chain conveyor belt 82 is arranged around the circumference of the cover 81 and is used to close the chain conveyor belt 82. A plurality of hoppers 83 are spaced apart along the extension direction of the chain conveyor belt 82 and are used to load fruits. The height of the chain conveyor belt 82 located in the upper part of the cover 81 gradually decreases along its conveying direction so that the opening of the hopper 83 gradually opens as the chain conveyor belt 82 moves to unload the fruit. The housing 81 of the lifting mechanism 8 adopts an enclosed structure, which can enclose the operating space of the chain conveyor belt 82 and the hopper 83. This not only protects the lifting mechanism 8 from external environmental interference, such as wind, sand, and rain, but also prevents the fruit from falling accidentally during the lifting process. The chain conveyor belt 82 is arranged around the circumference of the housing 81, forming a closed loop lifting channel. When the chain conveyor belt 82 is running, the hopper 83 located below receives the fruit from the vibrating screen 72 in sequence, and gradually lifts the fruit to a higher position as the chain conveyor belt 82 moves. The chain conveyor belt 82 in the upper part of the housing 81 is designed with a structure in which the height gradually decreases along the conveying direction. When the fruit is lifted to the top, the opening of the hopper 83 can be gradually opened by gravity and the movement of the chain conveyor belt 82, thereby achieving stable unloading of the fruit and avoiding the phenomenon of sudden large-scale dumping of fruit, so that the fruit can smoothly enter the conveyor into the chute 91.

[0062] like Figure 1 and Figure 2 As shown, the system further includes a dust removal fan 73, which is positioned above the vibrating screen 72. The inlet of the dust removal fan 73 faces downwards, and it has a dust outlet for discharging straw separated from the fruit by the vibration of the vibrating screen 72. When screening the fruit, the vibrating screen 72 separates the fruit from crop straw or soil through vibration. By positioning the dust removal fan 73 above the vibrating screen 72 with its inlet facing downwards, it can suck up the straw or soil separated during vibration and discharge these impurities through the dust outlet, preventing their accumulation inside the equipment or contamination of the fruit. This effectively improves the efficiency of the entire machine operation and the quality of fruit collection, meeting the higher requirements of cleanliness and efficiency in modern agricultural production.

[0063] like Figures 3 to 6As shown, furthermore, it also includes a combined drive mechanism 10, which is synchronously driven and connected to the conveying roller 3, the rotating clamping mechanism 4, the feeding conveying mechanism 5, and the mixing and fruit-removing mechanism 6; the combined drive mechanism 10 includes an engine 101, a first sprocket assembly 102, a gearbox 103, a belt drive assembly 104, a second sprocket assembly 105, a third sprocket assembly 106, and a fourth sprocket assembly 107; the engine 101 is mounted on the frame 1, and the output end of the engine 101 is driven and connected to the rotating shaft 63 of the mixing and fruit-removing mechanism 6 through the first sprocket assembly 102; The input shaft of the gearbox 103 is connected to the first sprocket assembly 102, and the output shaft 1031 of the gearbox 103 is connected to one side of the feeding conveyor mechanism 5 via the pulley drive assembly 104. The other side of the feeding conveyor mechanism 5 is connected to one side of the shaft end of the first roller toothed disc 41 of the rotating clamping mechanism 4 via the second sprocket assembly 105, and the shaft end of the first roller toothed disc 41 is also connected to the second roller toothed disc 43 via the third sprocket assembly 106. The other side of the shaft end of the first roller toothed disc 41 is connected to the end of the conveying roller 3 via the fourth sprocket assembly 107. In this way, these moving parts can be coordinated and controlled by a unified power source, namely the engine 101, so that the operating speed and rhythm of each module are kept consistent, achieving precise coordination and efficient synchronization of each working link in the crop harvesting process, thereby improving the continuity and efficiency of the harvester's operation.

[0064] like Figure 3 As shown, the angle adjustment mechanism 12 is a hydraulic push rod, the fixed end of which is connected to the frame 1, and the movable end of which is connected to the harvesting table 11.

[0065] like Figures 4 to 6 As shown, furthermore, there are two sets of conveying rollers 3, which are connected by a fifth sprocket assembly 108. Each conveying roller 3 has several material-pulling rods 31 along its circumference. Disc-shaped grass-cutting blades 32 are respectively provided on both sides of each conveying roller 3. The shaft end of the second roller toothed disc 43 is connected to the disc-shaped grass-cutting blades 32 via a sixth sprocket assembly 109. The disc-shaped grass-cutting blades 32 are used to cut weeds along the path. The material-pulling rods 31 allow the conveying rollers 3 to apply a continuous pushing force to the crop stalks during rotation, preventing the crop stalks from accumulating or jamming during transport.

[0066] like Figure 6As shown, the number of the first protruding teeth 411 and the first arc-shaped groove 412 is four, and the number of the second protruding teeth 431 and the second arc-shaped groove 432 is eight. This arrangement allows the first clamping rod 42 and the second clamping rod 44 to form a precise rhythmic alternation when meshing, thereby increasing the clamping frequency and improving the contact stability of the crop stem. Regardless of the diameter or shape of the stem, stable clamping and conveying can be achieved.

[0067] The conveying roller 3 of this invention can smoothly transport the shoveled crop stalks to the rotating clamping mechanism 4 through rotation. The first clamping rod 42 and the second clamping rod 44 of the rotating clamping mechanism 4 precisely clamp the crop stalks through alternating engagement, preventing slippage or accumulation, and then transport the crop stalks to the feeding conveying mechanism 5. The feeding conveying mechanism 5 can transport the crop stalks to the mixing chamber 61. Through the cooperation of the mixing blades 64 and the rotating shaft 63, the fruit can be efficiently separated from the stalks. After fruit removal, the stalks are pushed by the mixing blades 64 and gradually move along the direction of the conveying angle α to the side of the mixing chamber 61 away from the feed inlet 611, and pass through the impurity removal port 612. The fruit is discharged smoothly, thus achieving automated cleaning and continuous discharge of the stems after fruit removal, avoiding the problem of stem accumulation requiring manual cleaning; the first screen 62 at the bottom of the mixing chamber 61 can screen out the fruit, separating it from the stems and debris. After fruit removal, the fruit is transferred to the vibrating screen 72 through the feeding conveyor 71. Under the action of gravity and vibration, the attached dust and impurities can be automatically cleaned. Then, the lifting mechanism 8 lifts the fruit to the sliding chute 91. The sloping structure of the sliding chute 91 smoothly sends the fruit into the collection box 92 for collection. This setting can realize efficient transportation of crops, automatic fruit removal, fruit separation and clean collection, thereby improving the operating efficiency and automation level of the harvester.

[0068] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A crop combine harvester, characterized in that, It includes a frame, harvesting table, angle adjustment mechanism, pusher blade, conveying roller, rotating clamping mechanism, feeding and conveying mechanism, and mixing and fruit-removing mechanism; The bottom of the frame is provided with a walking drive mechanism, which is used to drive the frame to move. The end of the frame is provided with a harvesting table. The angle adjustment mechanism is provided on the frame and connected to the harvesting table. The angle adjustment mechanism is used to adjust the swing angle of the harvesting table. The pusher blade is located at the end of the harvesting platform, and the pusher blade is used to loosen and lift the crops on the ground as the frame moves; Several of the conveying rollers are respectively disposed at the rear end of the pushing shovel, and the rotating clamping mechanism is disposed above the conveying rollers. The conveying rollers can rotate relative to the harvesting table. The conveying rollers are used to roll and transport the shoveled crops into the rotating clamping mechanism. The rotary clamping mechanism includes a first roller toothed disc, a first clamping rod, a second roller toothed disc, and a second clamping rod. Multiple first roller toothed discs are connected by a first rotating shaft, and multiple second roller toothed discs are connected by a second rotating shaft. The first roller toothed disc and the second roller toothed disc are connected by tooth groove meshing. N first clamping rods are arranged at equal angles along the circumference of the first roller toothed disc, and 2N second clamping rods are arranged at equal angles along the circumference of the second roller toothed disc. The first clamping rods and the second clamping rods are used to clamp and feed the crops upward as they rotate. The feeding and conveying mechanism is located on the harvesting platform at the side end of the rotating clamping mechanism, and the mixing and fruit-removing mechanism is located at the discharge end of the feeding and conveying mechanism. The feeding and conveying mechanism is used to receive crops and transport them to the mixing and fruit-removing mechanism for fruit removal.

2. The crop combine harvester according to claim 1, characterized in that, The area where the first roller toothed disc is connected to the first clamping rod extends outward to form a first convex tooth, and a first arc-shaped groove is formed between two adjacent first convex teeth. The area where the second roller toothed disc is connected to the second clamping rod extends outward to form a second convex tooth, and a second arc-shaped groove is formed between two adjacent second convex teeth.

3. The crop combine harvester according to claim 1, characterized in that, The mixing and fruit-removing mechanism includes a mixing chamber, a first screen, a rotating shaft, and mixing blades; The mixing chamber is mounted on the frame, and the feed inlet at the end of the mixing chamber is located below the discharge end of the feeding and conveying mechanism to receive crops to be dehulled. The mixing chamber is provided with a decontamination port on the side away from the feed inlet. The rotating shaft is located inside the mixing chamber, and a conveying deflection angle is formed between the rotating shaft and the central axis of the mixing chamber. The angle of the conveying deflection angle is 5-20°. The stirring blades are arranged along the extension direction of the rotating shaft. The stirring blades are used to stir and remove the fruits on the crops as the rotating shaft rotates, and to convey the crop stems that have been de-fruited to the discharge port along the conveying angle for discharge. The first screen is located at the bottom of the mixing chamber and is used to screen the fruits separated from the crops by mixing.

4. The crop combine harvester according to claim 3, characterized in that, It also includes a material feeding and conveying mechanism, a vibrating screen, a lifting mechanism, a material chute, and a material receiving box; The feeding conveying mechanism is located below the mixing chamber. The feeding conveying mechanism is used to receive the fruit falling from the first screen. The vibrating screen is located at the tail of the feeding conveying mechanism. The lifting mechanism is located at the end of the vibrating screen. The vibrating screen forms an inclined angle with the horizontal plane so that the fruit is conveyed into the lifting mechanism under the action of gravity and vibration. The material feeding trough is located above the machine frame. The feeding end of the material feeding trough is connected to the lifting mechanism. The lifting mechanism is used to lift and transport the fruit to the feeding end of the material feeding trough. The receiving box is located on the machine frame and is connected to the discharging end of the material feeding trough. The material feeding trough has a slope structure with a gradually decreasing height along the direction close to the receiving box.

5. The crop combine harvester according to claim 4, characterized in that, The lifting mechanism includes a cover, a chain conveyor belt, and a hopper; The cover is located at the rear of the frame. The cover has an enclosed structure. The chain conveyor belt is arranged around the circumference of the cover. The cover is used to enclose the chain conveyor belt. Multiple hoppers are arranged at intervals along the extension direction of the chain conveyor belt. The hoppers are used to load fruits. The height of the chain conveyor belt located in the upper part of the casing gradually decreases along its conveying direction, so that the opening of the hopper gradually opens as the chain conveyor belt moves to unload materials.

6. The crop combine harvester according to claim 4, characterized in that, It also includes a dust removal fan, which is located above the vibrating screen. The air inlet of the dust removal fan faces downward. The dust removal fan has a dust outlet, which is used to discharge the straw that has been separated from the fruit by the vibrating screen through vibration.

7. The crop combine harvester according to claim 3, characterized in that, It also includes a combined drive mechanism, which is synchronously driven and connected to the conveying roller, the rotating clamping mechanism, the feeding conveying mechanism, and the mixing and dehydrating mechanism; The combined drive mechanism includes an engine, a first sprocket assembly, a gearbox, a belt drive assembly, a second sprocket assembly, a third sprocket assembly, and a fourth sprocket assembly; The engine is mounted on the frame, and the output end of the engine is connected to the rotating shaft of the stirring and fruit-removing mechanism via the first sprocket assembly. The input shaft of the gearbox is connected to the first sprocket assembly, and the output shaft of the gearbox is connected to one side of the feeding conveyor mechanism via the pulley drive assembly. The other end of the feeding and conveying mechanism is connected to the shaft end of the first roller toothed disc of the rotating clamping mechanism through the second sprocket assembly, and the shaft end of the first roller toothed disc is also connected to the second roller toothed disc through the third sprocket assembly. The other side shaft end of the first roller toothed disc is connected to the end of the conveying roller via the fourth sprocket assembly.

8. The crop combine harvester according to claim 1, characterized in that, The angle adjustment mechanism is a hydraulic push rod, the fixed end of which is connected to the frame, and the movable end of which is connected to the harvesting table.

9. The crop combine harvester according to claim 7, characterized in that, The number of the conveying rollers is two sets, and the two sets of conveying rollers are connected by a fifth sprocket assembly. The conveying roller is provided with several material-pulling rods along the circumferential direction; The conveying roller is equipped with disc-shaped grass cutters on both sides. The shaft end of the second roller toothed disc is connected to the disc-shaped grass cutters via a sixth sprocket assembly. The disc-shaped grass cutters are used for cutting grass. act The weeds along the road were cut down.

10. The crop combine harvester according to claim 2, characterized in that, The number of the first convex teeth and the first arc-shaped groove is four, and the number of the second convex teeth and the second arc-shaped groove is eight.

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