Crop combine harvester

Abstract

The invention discloses a crop combine harvester which comprises an engine, a rack, a header, an angle adjusting mechanism, a material pushing scraper knife, a material conveying roller, a rotary material clamping mechanism, a feeding conveying mechanism and a stirring and threshing mechanism, and the rotary material clamping mechanism comprises a first roller fluted disc, a first clamping rod, a second roller fluted disc and a second clamping rod; the first clamping rod and the second clamping rod are used for clamping and conveying crops upwards along with rotation movement. The material conveying roller conveys the shoveled crop stalks to the rotary material clamping mechanism through the rotation effect, a first clamping rod and a second clamping rod of the rotary material clamping mechanism accurately clamp the stalks through alternate meshing, and the stalks are conveyed into the stirring and fruit removing mechanism through the feeding conveying mechanism to be subjected to fruit separation; and then the fruits are conveyed to the lifting mechanism through the discharging conveying mechanism and the vibrating screen and are conveyed into the material collecting box through the material sliding groove, so that efficient conveying, automatic fruit stripping, fruit separation and clean collection of the crops are achieved, and the working efficiency of the harvester is effectively improved.

Description

Technical Field

[0001] The invention relates to the field of agricultural harvesters, and in particular to a crop combine harvester. Background Art

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

[0003] In the prior art, in the process of pulling crop stalks out of the soil and transporting them, traditional harvesters are prone to crops falling, piling up or getting blocked, thus affecting the continuity and stability of crop transportation; in addition, in the process of threshing, the discarded stalks after threshing often cannot be automatically discharged and need to be manually cleaned, resulting in high labor intensity and affecting the operating efficiency of the harvester; in addition, in the process of collecting and screening the fruits, the fruits are often mixed with impurities such as dust and stalk debris, resulting in the need for fruit cleaning and impurity separation operations in subsequent processes, affecting the harvesting efficiency of crops.

[0004] Therefore, the prior art has defects and needs to be improved. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a crop combine harvester which can continuously scoop and stably clamp and deliver, automatically remove fruits and discharge stems, and effectively improve the operation efficiency.

[0006] To achieve this purpose, the present invention adopts the following technical scheme: a crop combine harvester, including a frame, a harvesting platform, an angle adjustment mechanism, a material pushing blade, a material transporting roller, a rotating material clamping mechanism, a material feeding and conveying mechanism, and a stirring and threshing mechanism;

[0007] A travel drive mechanism is provided at the bottom of the frame, and the travel drive mechanism is used to drive the frame to travel. A harvesting platform is provided at the end of the frame. The angle adjustment mechanism is provided on the frame and connected to the harvesting platform. The angle adjustment mechanism is used to adjust the swing angle of the harvesting platform.

[0008] The pushing blade is arranged at the end of the harvesting platform, and is used to loosen and shovel up the crops on the ground as the frame moves;

[0009] A plurality of the material transport rollers are respectively arranged at the rear ends of the pushing blades, the rotating material clamping mechanism is arranged above the material transport rollers, the material transport rollers can rotate relative to the harvesting platform, and the material transport rollers are used to roll and transport the scooped crops into the rotating material clamping mechanism;

[0010] The rotating material clamping mechanism comprises a first roller toothed disc, a first clamping rod, a second roller toothed disc and a second clamping rod, a plurality of the first roller toothed discs are connected by a first rotating shaft, a plurality of the second roller toothed discs are connected by a second rotating shaft, and the first roller toothed disc and the second roller toothed disc are meshed and connected by tooth grooves;

[0011] N first clamping rods are arranged at equal angles along the circumference of the first drum toothed disc, and 2N second clamping rods are arranged at equal angles along the circumference of the second drum toothed disc, and the first clamping rods and the second clamping rods are used to clamp and send crops upwards with the rotation movement;

[0012] The feeding and conveying mechanism is arranged on the harvesting platform at the side end of the rotating clamping mechanism, and the stirring and threshing mechanism is arranged at the discharge end of the feeding and conveying mechanism. The feeding and conveying mechanism is used to receive crops and convey them to the stirring and threshing mechanism for threshing.

[0013] By adopting the above-mentioned technical solutions, in the crop combine harvester, the area where the first drum 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 drum toothed disc is connected to the second clamping rod extends outward to form a second protruding tooth, and a second arc groove is formed between two adjacent second protruding teeth.

[0015] By adopting the above-mentioned technical solutions, in the crop combine harvester, the stirring and threshing mechanism includes a stirring bin, a first screen, a rotating shaft and stirring blades;

[0016] The mixing bin is arranged on the frame, and a feeding port is provided at the end of the mixing bin, and the feeding port is located below the discharging end of the feeding conveying mechanism, so as to receive the crops to be defruited;

[0017] The side end of the stirring chamber away from the feed port is provided with a de-impurity port, the rotating shaft is arranged in the stirring chamber, and a conveying angle is formed between the rotating shaft and the central axis of the stirring chamber, and the angle of the conveying angle is 5-20°;

[0018] The stirring blades are arranged along the extending direction of the rotating shaft, and are used to stir and thresh the fruits on the crops as the rotating shaft rotates, and transport the threshed crop stems to the impurity removal port along the direction of the transport deflection angle for discharge.

[0019] The first screen is arranged at the bottom of the stirring bin, and is used for screening the fruits separated from the crops by stirring.

[0020] By adopting the above-mentioned technical solutions, the crop combine harvester further includes a material feeding and conveying mechanism, a vibrating screen, a lifting mechanism, a material sliding trough and a material receiving box;

[0021] The material feeding conveying mechanism is arranged below the mixing bin, and is used to receive the fruits dropped from the first screen. The vibrating screen is arranged at the tail of the material feeding conveying mechanism, and the lifting mechanism is arranged at the end of the vibrating screen. An inclination angle is formed between the vibrating screen and the horizontal plane, so that the fruits are transported to the lifting mechanism under the action of gravity and vibration.

[0022] The slide trough is arranged above the frame, and the feed end of the slide trough is connected with the lifting mechanism. The lifting mechanism is used to lift and transport the fruit to the feed end of the slide trough. The receiving box is arranged on the frame and connected with the discharge end of the slide trough. The slide trough forms a slope structure with a gradually decreasing height along the direction approaching the receiving box.

[0023] By adopting the above-mentioned technical solutions, in the crop combine harvester, the lifting mechanism includes a cover, a chain mesh conveyor belt and a loading hopper;

[0024] The cover is arranged at the rear of the frame, the cover is of an enclosing structure, the chain mesh conveyor belt is arranged around the circumference of the cover, the cover is used to close the chain mesh conveyor belt, a plurality of loading hoppers are arranged at intervals along the extension direction of the chain mesh conveyor belt, and the loading hoppers are used to load fruits;

[0025] The height of the chain mesh conveyor belt located in the upper section of the cover shell is gradually reduced along its conveying direction, so that the opening of the loading hopper is gradually opened for unloading as the chain mesh conveyor belt moves.

[0026] By adopting the above-mentioned technical solutions, the crop combine harvester also includes a de-dusting fan, which is arranged above the vibrating screen, with the air inlet end of the de-dusting fan arranged downward, and the de-dusting fan has a de-dusting outlet, which is used to discharge the straw separated from the fruit by the vibration of the vibrating screen.

[0027] By adopting the above-mentioned technical solutions, the crop combine harvester further comprises a combined driving mechanism, which is synchronously driven and connected with the material transporting roller, the rotating material clamping mechanism, the material feeding and conveying mechanism and the stirring and threshing mechanism;

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

[0029] The engine is arranged on the frame, and the output end of the engine is connected to the rotating shaft of the stirring and threshing mechanism through 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 transmission-connected to one side end of the feeding conveying mechanism through the pulley transmission assembly;

[0031] The other side end of the feeding conveying mechanism is connected to the shaft end of one side 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 drivingly connected to the second roller toothed disc through the third sprocket assembly;

[0032] The other side shaft end of the first roller gear disc is transmission-connected to the end of the material transporting roller through the fourth sprocket assembly.

[0033] By adopting the above-mentioned technical solutions, in the crop combine harvester, the angle adjustment mechanism is a hydraulic push rod, the fixed end of the hydraulic push rod is connected to the frame, and the movable end of the hydraulic push rod is connected to the harvesting platform.

[0034] By adopting the above-mentioned technical solutions, in the crop combine harvester, the number of the material transport rollers is two groups, and the two groups of the material transport rollers are connected by a fifth sprocket assembly;

[0035] The material transporting roller is provided with a plurality of material shifting rods along the circumferential direction;

[0036] Disc mowers are respectively provided on both sides of the material transporting roller, and the shaft end of the second roller gear disc is transmission-connected to the disc mowers through a sixth sprocket assembly, and the disc mowers are used to cut weeds on the path.

[0037] By adopting the above-mentioned technical solutions, in the crop combine harvester, the number of the first convex teeth and the first arc-shaped grooves is four, and the number of the second convex teeth and the second arc-shaped grooves is eight.

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

[0039] The material conveying roller of the present invention can smoothly convey the scooped crop stems to the rotating clamping mechanism through rotation. The first clamping rod and the second clamping rod of the rotating clamping mechanism can accurately clamp the crop stems through alternating meshing to avoid slipping or accumulation, and convey the crop stems to the loading conveying mechanism. The loading conveying mechanism can convey the crop stems to the mixing bin. Through the cooperation of the mixing blades and the rotating shaft, the fruits can be efficiently separated from the stems. Under the pushing action of the mixing blades, the stems after the fruits are removed gradually move to the side end of the mixing bin away from the feeding port along the direction of the conveying deflection angle under the pushing action of the mixing blades, and are smoothly discharged through the impurity removal port. Thereby, the automatic cleaning and continuous discharge of the stems after threshing can be realized, and the problem of stem accumulation requiring manual cleaning can be avoided; the first screen at the bottom of the mixing bin can screen out the fruit and separate it from the stems and debris. The threshed fruit is transferred to the vibrating screen through the unloading conveying mechanism, and the attached dust and impurities can be automatically cleaned under the action of gravity and vibration. The fruit is then lifted to the slide trough by the lifting mechanism, and the fruit is smoothly sent to the receiving box for collection through the slope structure of the slide trough. With this arrangement, efficient transportation, automatic threshing, fruit separation and clean collection of crops can be realized, thereby improving the operating efficiency and automation level of the harvester. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0041] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

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

[0043] Figure 2 It is another perspective overall structural schematic diagram of the present invention;

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

[0045] Figure 4 It is a schematic diagram of the installation structure of the harvesting platform of the present invention;

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

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

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

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

[0050] Fig. 9 It is a schematic diagram of the lifting mechanism structure of the present invention. DETAILED DESCRIPTION

[0051] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0053] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0054] like Figures 1 to 9As shown, an embodiment of the present invention provides a crop combine harvester, including a frame 1, a harvesting platform 11, an angle adjustment mechanism 12, a pushing blade 2, a material transport roller 3, a rotating clamping mechanism 4, a feeding and conveying mechanism 5, and a stirring and threshing mechanism 6; a travel drive mechanism 13 is provided at the bottom of the frame 1, and the travel drive mechanism 13 is used to drive the frame 1 to travel, a harvesting platform 11 is provided at the end of the frame 1, the angle adjustment mechanism 12 is provided on the frame 1 and connected to the harvesting platform 11, the angle adjustment mechanism 12 is used to adjust the swing angle of the harvesting platform 11, the pushing blade 2 is provided at the end of the harvesting platform 11, and the pushing blade 2 is used to move along with the machine The movement of the frame 1 loosens and scoops up the crops on the ground; the travel drive mechanism 13 at the bottom of the frame 1 can provide power for the frame 1 to travel, so that it can flexibly travel in the field and adapt to various terrain conditions. It should be noted that in this embodiment, the travel drive mechanism 13 is a crawler travel 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 scoop up the crop stems 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 wear caused by contact between the pusher blade 2 and the ground.

[0055] The plurality of transport rollers 3 are respectively arranged at the rear end of the pushing blade 2, and the rotating clamping mechanism 4 is arranged above the transport rollers 3. The transport rollers 3 can rotate relative to the harvesting platform 11, and the transport rollers 3 are used to roll the scooped crops into the rotating clamping mechanism 4; the transport rollers 3 can roll the scooped crops through the rotation action, so that the crops move smoothly backwards, ensuring that the crops can smoothly flow into the subsequent processing links.

[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, a plurality of the first roller toothed discs 41 are connected by a first rotating shaft 45, a plurality of the second roller toothed discs 43 are connected by a second rotating shaft 46, the first roller toothed disc 41 and the second roller toothed disc 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 disc 41, 2N second clamping rods 44 are arranged at equal angles along the circumference of the second roller toothed disc 43, the first clamping rod 42 and the second clamping rod 44 are used to clamp and transport the crops upward with the rotational movement; the first roller toothed disc 41 and the second roller toothed disc 43 in the rotating clamping mechanism 4 are connected by tooth groove meshing, ensuring synchronous rotation between the two, thereby improving the unified coordination of the 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 circumferential direction. When the crop stalks are transported from the material transport roller 3 to the rotating clamping mechanism 4, the first clamping rod 42 and the second clamping rod 44 are alternately engaged to accurately clamp the crop stalks. With the rotation movement of the first clamping rod 42 and the second clamping rod 44, the crops can pass through the gap between the first clamping rod 42 and the second clamping rod 44 and be lifted upward to form a uniform clamping force during the rotation process, thereby stably clamping the crop stalks to prevent slipping or uneven force, and avoiding the crop stalks from falling or shifting due to vibration or gravity. It can also adapt to clamping crop stalks of different shapes, ensuring that different types of crop stalks can be stably transported, avoiding low transportation efficiency and material waste caused by stalk slipping, jamming or accumulation in traditional transportation methods. In addition, it should be noted that the hollow structure formed between the adjacent first clamping rods 42 and second clamping rods 44 allows crops to pass through smoothly to prevent the fruits from being clamped and damaged.

[0057] The feeding and conveying mechanism 5 is arranged on the harvesting platform 11 at the side end of the rotating clamping mechanism 4, and the stirring and threshing mechanism 6 is arranged at the discharge end of the feeding and conveying mechanism 5. The feeding and conveying mechanism 5 is used to receive the crops and convey them to the stirring and threshing mechanism 6 for threshing. 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 stirring and threshing mechanism 6, and the stirring and threshing mechanism 6 can separate the fruits from the crop stalks by stirring, thereby realizing automatic threshing.

[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 convex tooth 411, and a first arc groove 412 is formed between two adjacent first convex 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 convex tooth 431, and a second arc groove 432 is formed between two adjacent second convex teeth 431. With this arrangement, when the crop stems enter 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 stems, so as to prevent the crop stems from relative slipping due to unstable clamping, causing the crop stems to fall or be damaged.

[0059] like Figure 1 , Figure 7 and Figure 8As shown, further, the stirring and threshing mechanism 6 includes a stirring chamber 61, a first screen 62, a rotating shaft 63 and a stirring blade 64, the stirring chamber 61 is arranged on the frame 1, and a feed port 611 is provided at the end of the stirring chamber 61, and the feed port 611 is located below the discharge end of the loading and conveying mechanism 5 for receiving the crops to be threshed, and a de-mixing port 612 is provided at the side end of the stirring chamber 61 away from the feed port 611, the rotating shaft 63 is arranged in the stirring chamber 61, and a conveying angle α is formed between the rotating shaft 63 and the central axis of the stirring chamber 61, and the angle of the conveying angle α is 5-20°. In this embodiment, the angle of 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 thresh the fruits on the crops as the rotating shaft 63 rotates, and transport the threshed crop stems along the direction of the conveying angle α to the impurity removal port 612 for discharge. The first screen 62 is arranged at the bottom of the stirring bin 61, and the first screen 62 is used to screen the fruits stirred and separated from the crops. When the crops to be threshed are conveyed to the stirring and threshing mechanism 6 by the feeding and conveying mechanism 5, they can be conveyed to the stirring chamber 61 through the feeding port 611. The rotating shaft 63 in the stirring chamber 61 can be driven to rotate by an external driving device, and drive the stirring blades 64 to rotate at a high speed. The stirring blades 64 contact the crop stems with the rotating movement of the rotating shaft 63, so as to apply appropriate mechanical force to the crop stems through the stirring action, and efficiently separate the fruits attached to the stems; a conveying deflection angle α of 5-20° is formed between the rotating shaft 63 and the central axis of the stirring chamber 61, so that the threshed stems are moved by the stirring blades 64. Under the pushing action, it gradually moves along the direction of the conveying angle α to the side end of the mixing chamber 61 away from the feed port 611, and is smoothly discharged through the impurity removal port 612, thereby realizing the automatic cleaning and continuous discharge of the stems after fruit removal, avoiding the problem of stem 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 fruits separated from the stems, separate the fruits from larger stems or debris, and ensure that only the fruits pass through the first screen 62 to enter the next processing link. In this way, efficient linkage of fruit removal, screening and stem 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 conveying mechanism 71, a vibrating screen 72, a lifting mechanism 8, a sliding trough 91 and a receiving box 92, the feeding conveying mechanism 71 is arranged below the mixing bin 61, the feeding conveying mechanism 71 is used to receive the fruits dropped from the first screen 62, the vibrating screen 72 is arranged at the tail of the feeding conveying mechanism 71, the lifting mechanism 8 is arranged at the end of the vibrating screen 72, an inclination angle is formed between the vibrating screen 72 and the horizontal plane, so that the fruits are conveyed to the lifting mechanism 8 under the action of gravity and vibration, the sliding trough 91 is arranged above the frame 1, the feeding end of the sliding trough 91 is connected with the lifting mechanism 8, the lifting mechanism 8 is used to lift and convey the fruits to the feeding end of the sliding trough 91, the receiving box 92 is arranged on the frame 1, and is connected with the discharging end of the sliding trough 91, and the sliding trough 91 forms a slope structure with a gradually decreasing height along the direction close to the receiving box 92. When the fruits fall through the first screen 62 at the bottom of the mixing bin 61, the unloading conveying mechanism 71 is located below the mixing bin 61, which can receive the fruits and convey them to the vibrating screen 72. The vibrating screen 72 can generate vibrations, and through the inclination angle formed with the horizontal plane, the fruits can be 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 fruits from a lower position to the feeding end of the slide trough 91 to complete the connection between horizontal conveying and vertical lifting of the fruits. After the lifting mechanism 8 feeds the fruits into the slide trough 91, the fruits slide along the gradually lowered slope structure in the slide trough 91, so that the fruits slide smoothly into the collecting box 92 for collection. With this arrangement, the crops can be cleaned, efficiently and automatically collected after the fruit removal process, which not only improves the working efficiency but also reduces the labor intensity of the workers.

[0061] like Fig. 9As shown, further, the lifting mechanism 8 includes a cover shell 81, a chain mesh conveyor belt 82 and a loading hopper 83, the cover shell 81 is arranged at the rear part of the frame 1, the cover shell 81 is an enclosing structure, the chain mesh conveyor belt 82 is arranged around the circumference of the cover shell 81, the cover shell 81 is used to close the chain mesh conveyor belt 82, and a plurality of loading hoppers 83 are arranged at intervals along the extension direction of the chain mesh conveyor belt 82, the loading hopper 83 is used to load fruits, and the height of the chain mesh conveyor belt 82 located in the upper area of ​​the cover shell 81 gradually decreases along its conveying direction, so that the opening of the loading hopper 83 is gradually opened for unloading as the chain mesh conveyor belt 82 moves. The cover 81 of the lifting mechanism 8 adopts an enclosing structure, which can close the operating space of the chain mesh conveyor belt 82 and the loading hopper 83, which can not only protect the lifting mechanism 8 from interference from the external environment, such as wind, sand, rain, etc., but also prevent the fruit from accidentally falling during the lifting process. The chain mesh conveyor belt 82 is arranged around the circumference of the cover 81 to form a closed circulation lifting channel. When the chain mesh conveyor belt 82 is running, the loading hopper 83 located below receives the fruits transmitted from the vibrating screen 72 in turn, and gradually lifts the fruits to a higher place with the movement of the chain mesh conveyor belt 82. The chain mesh conveyor belt 82 in the upper area of ​​the cover 81 is designed to have a structure in which the height gradually decreases along the conveying direction. When the fruit is lifted to the top, the opening of the loading hopper 83 can be gradually opened by utilizing the action of gravity and the movement of the chain mesh conveyor belt 82, thereby realizing stable unloading of the fruit and avoiding the sudden and large-scale dumping of the fruit, so that the fruit can be smoothly transported into the sliding trough 91.

[0062] like Figure 1 and Figure 2 As shown, further, it also includes a de-impurity fan 73, which is arranged above the vibrating screen 72, and the air inlet end of the de-impurity fan 73 is arranged downward, and the de-impurity fan 73 has a de-impurity outlet, and the de-impurity outlet is used to discharge the straw separated from the fruit by the vibrating screen 72 through vibration. When the vibrating screen 72 screens the fruit, the fruit is separated from the crop straw or dirt by vibration. The de-impurity fan 73 is arranged above the vibrating screen 72 with its air inlet end facing downward, so that the straw or dirt separated during the vibration process can be sucked, and these impurities can be discharged out of the equipment through the de-impurity outlet through the strong suction effect, so as to prevent them from accumulating inside the equipment or contaminating the fruit. In this way, the efficiency of the whole machine operation and the quality of fruit collection can be effectively improved, and the higher requirements of modern agricultural production for cleanliness and efficiency can be met.

[0063] like Figures 3 to 6As shown, further, it also includes a combined driving mechanism 10, which is synchronously driven and connected with the material transport roller 3, the rotating clamping mechanism 4, the feeding conveying mechanism 5 and the stirring and threshing mechanism 6; the combined driving mechanism 10 includes an engine 101, a first sprocket assembly 102, a gearbox 103, a pulley transmission assembly 104, a second sprocket assembly 105, a third sprocket assembly 106 and a fourth sprocket assembly 107; the engine 101 is arranged on the frame 1, and the output end of the engine 101 is connected to the rotating shaft 63 of the stirring and threshing 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 conveying mechanism 5 through the pulley transmission assembly 104; the other side of the feeding conveying mechanism 5 is connected to one side of the first roller gear 41 of the rotating clamping mechanism 4 through the second sprocket assembly 105, and the first roller gear 41 is also connected to the second roller gear 43 through the third sprocket assembly 106; the other side of the first roller gear 41 is connected to the end of the material conveying roller 3 through 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 running speed and rhythm of each module are kept consistent, and the precise coordination and efficient synchronization of each working link in the crop harvesting process are achieved, thereby improving the operation continuity and efficiency of the harvester.

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

[0065] like Figures 4 to 6 As shown, further, the number of the material conveying rollers 3 is two groups, and the two groups of the material conveying rollers 3 are connected by a fifth sprocket assembly 108. The material conveying rollers 3 are provided with a plurality of material-dispensing rods 31 along the circumferential direction, and the two sides of the material conveying rollers 3 are provided with disc mowers 32, respectively. The shaft end of the second roller toothed disc 43 is connected to the disc mowers 32 by a sixth sprocket assembly 109, and the disc mowers 32 are used to cut the weeds on the path. The provision of the material-dispensing rods 31 enables the material conveying rollers 3 to apply continuous driving force to the crop stems when rotating, so as to prevent the crop stems from piling up or getting stuck during the conveying process.

[0066] like Figure 6As shown, further, 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. Such an arrangement enables the first clamping rod 42 and the second clamping rod 44 to form a precise rhythmic alternation when engaged, thereby increasing the clamping frequency and improving the contact stability with the crop stems, and achieving smooth clamping and transportation regardless of the diameter or shape of the stems.

[0067] The material conveying roller 3 of the present invention can smoothly convey the scooped crop stems 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 can accurately clamp the crop stems through alternating meshing to avoid slipping or accumulation, and convey the crop stems to the feeding conveying mechanism 5. The feeding conveying mechanism 5 can convey the crop stems to the mixing bin 61. Through the cooperation of the mixing blades 64 and the rotating shaft 63, the fruits can be efficiently separated from the stems. Under the pushing action of the mixing blades 64, the stems after the fruits are removed gradually move to the side end of the mixing bin 61 away from the feed port 611 along the direction of the conveying deflection angle α under the pushing action of the mixing blades 64, and pass through the impurity removal port 612. The fruit can be discharged smoothly, thereby realizing the automatic cleaning and continuous discharge of the stems after the fruit is removed, avoiding the problem of manual cleaning of the stems due to accumulation; the first screen 62 at the bottom of the mixing bin 61 can screen out the fruit and separate it from the stems and debris. The fruit after the fruit is removed is transferred to the vibrating screen 72 through the unloading conveying mechanism 71. Under the action of gravity and vibration, the attached dust and impurities can be automatically cleaned, and then the fruit is lifted to the sliding trough 91 by the lifting mechanism 8. The fruit is smoothly sent to the collecting box 92 through the slope structure of the sliding trough 91 for collection. With this arrangement, efficient transportation, automatic fruit removal, fruit separation and clean collection of crops can be realized, thereby improving the operating efficiency and automation level of the harvester.

[0068] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions 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, a harvesting platform, an angle adjustment mechanism, a pushing blade, a material transporting roller, a rotating material clamping mechanism, a material feeding and conveying mechanism, and a stirring and threshing mechanism; A travel drive mechanism is provided at the bottom of the frame, and the travel drive mechanism is used to drive the frame to travel. A harvesting platform is provided at the end of the frame. The angle adjustment mechanism is provided on the frame and connected to the harvesting platform. The angle adjustment mechanism is used to adjust the swing angle of the harvesting platform. The pushing blade is arranged at the end of the harvesting platform, and is used to loosen and shovel up the crops on the ground as the frame moves; A plurality of the material transport rollers are respectively arranged at the rear ends of the pushing blades, the rotating material clamping mechanism is arranged above the material transport rollers, the material transport rollers can rotate relative to the harvesting platform, and the material transport rollers are used to roll and transport the scooped crops into the rotating material clamping mechanism; The rotating material clamping mechanism comprises a first roller toothed disc, a first clamping rod, a second roller toothed disc and a second clamping rod, a plurality of the first roller toothed discs are connected by a first rotating shaft, a plurality of the second roller toothed discs are connected by a second rotating shaft, and the first roller toothed discs and the second roller toothed discs are meshed and connected by tooth grooves; N first clamping rods are arranged at equal angles along the circumference of the first drum toothed disc, and 2N second clamping rods are arranged at equal angles along the circumference of the second drum toothed disc, and the first clamping rods and the second clamping rods are used to clamp and send crops upwards with the rotation movement; The feeding and conveying mechanism is arranged on the harvesting platform at the side end of the rotating clamping mechanism, and the stirring and threshing mechanism is arranged at the discharge end of the feeding and conveying mechanism. The feeding and conveying mechanism is used to receive crops and convey them to the stirring and threshing mechanism for threshing.

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

3. The crop combine harvester according to claim 1, characterized in that: The stirring and threshing mechanism comprises a stirring bin, a first screen, a rotating shaft and stirring blades; The mixing bin is arranged on the frame, and a feeding port is provided at the end of the mixing bin, and the feeding port is located below the discharging end of the feeding conveying mechanism, so as to receive the crops to be defruited; The side end of the stirring chamber away from the feed port is provided with a de-impurity port, the rotating shaft is arranged in the stirring chamber, and a conveying angle is formed between the rotating shaft and the central axis of the stirring chamber, and the angle of the conveying angle is 5-20°; The stirring blades are arranged along the extending direction of the rotating shaft, and are used to stir and thresh the fruits on the crops as the rotating shaft rotates, and transport the threshed crop stems to the impurity removal port along the direction of the transport deflection angle for discharge. The first screen is arranged at the bottom of the stirring bin, and is used for screening the fruits separated from the crops by stirring.

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 sliding chute and a material receiving box; The material feeding conveying mechanism is arranged below the mixing bin, and is used to receive the fruits dropped from the first screen. The vibrating screen is arranged at the tail of the material feeding conveying mechanism, and the lifting mechanism is arranged at the end of the vibrating screen. An inclination angle is formed between the vibrating screen and the horizontal plane, so that the fruits are transported to the lifting mechanism under the action of gravity and vibration. The slide trough is arranged above the frame, and the feed end of the slide trough is connected with the lifting mechanism. The lifting mechanism is used to lift and transport the fruit to the feed end of the slide trough. The receiving box is arranged on the frame and connected with the discharge end of the slide trough. The slide trough forms a slope structure with a gradually decreasing height along the direction approaching the receiving box.

5. The crop combine harvester according to claim 4, characterized in that: The lifting mechanism includes a cover shell, a chain mesh conveyor belt and a loading hopper; The cover is arranged at the rear of the frame, the cover is of an enclosing structure, the chain mesh conveyor belt is arranged around the circumference of the cover, the cover is used to close the chain mesh conveyor belt, a plurality of loading hoppers are arranged at intervals along the extension direction of the chain mesh conveyor belt, and the loading hoppers are used to load fruits; The height of the chain mesh conveyor belt located in the upper section of the cover shell is gradually reduced along its conveying direction, so that the opening of the loading hopper is gradually opened for unloading as the chain mesh conveyor belt moves.

6. The crop combine harvester according to claim 4, characterized in that: It also includes a de-impurity fan, which is arranged above the vibration screen, with the air inlet end of the de-impurity fan arranged downward, and the de-impurity fan has a de-impurity outlet, which is used to discharge the straw separated from the fruit by the vibration screen through vibration.

7. The crop combine harvester according to claim 3, characterized in that: It also includes a combined driving mechanism, which is synchronously driven and connected with the material transport roller, the rotating material clamping mechanism, the material feeding and conveying mechanism, and the stirring and threshing mechanism; The combined drive mechanism includes an engine, a first sprocket assembly, a gearbox, a pulley transmission assembly, a second sprocket assembly, a third sprocket assembly and a fourth sprocket assembly; The engine is arranged on the frame, and the output end of the engine is connected to the rotating shaft of the stirring and threshing mechanism through 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 transmission-connected to one side end of the feeding conveying mechanism through the pulley transmission assembly; The other side end of the feeding conveying mechanism is connected to the shaft end of one side 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 drivingly connected to the second roller toothed disc through the third sprocket assembly; The other side shaft end of the first roller gear disc is transmission-connected to the end of the material transporting roller through 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 the hydraulic push rod is connected to the frame, and the movable end of the hydraulic push rod is connected to the harvesting platform.

9. The crop combine harvester according to claim 7, characterized in that: There are two groups of material conveying rollers, and the two groups of material conveying rollers are connected by a fifth sprocket assembly; The material transporting roller is provided with a plurality of material shifting rods along the circumferential direction; Disc mowers are provided on both sides of the conveying roller, and the shaft end of the second roller gear disc is connected to the disc mowers through a sixth sprocket assembly. act Cut the weeds on the road.

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

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