Straw smashing and recycling function combined harvester
Patent Information
- Application Number
- CN202522606432.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-09
AI Technical Summary
[0003]在现有秸秆粉碎回收功能联合收割机使用过程中仍存在一些问题，现有的秸秆粉碎回收功能联合收割机在使用过程中不能够对秸秆进行更加彻底的粉碎，且粉碎过程耗费能量多不能够更好且快速的对秸秆进行切割粉碎，且对切割装置会造成较大损伤，因此，本领域技术人员提供了一种秸秆粉碎回收功能联合收割机，以解决上述背景技术中提出的问题
[0022]1、本实用新型中，秸秆粉碎回收功能联合收割机秸秆经过加热处理被破坏内部结构后秸秆会进入第一粉碎器内部进行初步的切割处理，经过初步切割的秸秆然后会进入第二粉碎器内部进行二次切割以保证秸秆都被切割粉碎到合适的尺寸，然后排出第二粉碎器进入谷粒分离箱内部进行储存，当进入谷粒分离箱内部的秸秆焚烧粒达到一定的量后位于谷粒分离箱下内壁的称重板就会发送信号到第一电动伸缩杆和第二电动伸缩杆上进行同步伸缩，进而将第一推板和第二推板推动从而推动谷粒分离箱内部的秸秆颗粒逐渐压缩到合适规格后进行统一的回收处理。
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Figure CN224891229U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of combine harvesters, and in particular to a combine harvester with straw crushing and recycling function. Background Technology
[0002] A combine harvester is a type of harvesting machinery that can complete the harvesting, threshing, stalk separation, and debris removal of cereal crops in one operation, directly obtaining grains from the field. It was called a combine harvester in the early 1950s. It greatly improved agricultural production efficiency and reduced the burden on farmers. The straw crushing and recycling function of the combine harvester refers to the integrated technology that crushes the straw and evenly spreads it back to the field or recycles it while harvesting crops. This function uses built-in crushing devices such as hydraulic augers and chopping modules to cut the straw into pieces ≤10 cm, and works in conjunction with the spreading system to achieve efficient processing.
[0003] There are still some problems in the use of existing straw crushing and recycling combine harvesters. The existing straw crushing and recycling combine harvesters cannot crush the straw more thoroughly during use, and the crushing process consumes a lot of energy and cannot cut and crush the straw better and faster. It also causes great damage to the cutting device. Therefore, those skilled in the art provide a straw crushing and recycling combine harvester to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a straw crushing and recycling combine harvester that improves the efficiency of straw cutting and crushing, enhances the storage conditions of grains and straw, and reduces the wear and tear on internal devices.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a combine harvester with straw crushing and recycling function, including a heating and dehumidification structure and a rice collection box, wherein a driver's cab is fixedly connected to the front end face of the rice collection box, and a threshing and crushing box is fixedly connected to the lower end face of the driver's cab and the rice collection box, wherein a straw threshing and crushing structure is provided inside the threshing and crushing box.
[0006] The threshing and crushing straw structure includes a straw collection box, a partition fixedly connected to the center of the upper inner wall of the straw collection box, multiple first electric telescopic rods fixedly connected to the rear end of the upper inner wall of the straw collection box, a first push plate fixedly connected to the output end of the multiple first electric telescopic rods, a weighing plate fixedly connected to the lower inner wall of the straw collection box, multiple second electric telescopic rods fixedly connected to the lower end of the front inner wall of the straw collection box, a second push plate fixedly connected to the output end of the multiple second electric telescopic rods, a first crusher fixedly connected between the front ends of the two inner walls of the straw collection box, a second crusher fixedly connected to the lower end face of the first crusher, and a grain separation box fixedly connected to the front face of the straw collection box.
[0007] Through the above technical solution, after the separation of grains and straw is completed, the uncut but crushed straw is transported to the dehumidification box by the rotation of multiple second separation cylinders, and then enters the first crusher for preliminary straw crushing via a transport plate. The straw that has undergone preliminary crushing then enters the second crusher for secondary crushing to ensure that the straw is crushed to a suitable size. It is then discharged from the second crusher and enters the grain separation box for storage. When the amount of straw burning particles in the grain separation box reaches a certain amount, the weighing plate located on the lower inner wall of the grain separation box will send a signal to the first and second electric telescopic rods to extend and retract synchronously, thereby pushing the first and second push plates to gradually compress the straw particles in the grain separation box to a suitable size for unified recycling.
[0008] Furthermore, the heating and dehumidification structure includes multiple hot air blowers. The front ends of the multiple hot air blowers penetrate the lower end of the front inner wall of the grain separation box and lead to the interior of the grain separation box. The rear ends of the threshing and crushing box and the rice collection box are fixedly connected to dehumidification pipes. The other ends of the two dehumidification pipes are fixedly connected to electric valves. A dehumidification box is set between the end faces of the two electric valves that are close to each other. A dustproof net is fixedly connected to the center of the rear end face of the dehumidification box. A first motor is fixedly connected to the rear inner wall of the dehumidification box. A moisture-absorbing fan is fixedly connected to the output end of the first motor. Moisture-absorbing cotton is set at the upper and lower ends of the center of the rear end face of the dehumidification box. The front ends of the two moisture-absorbing cottons penetrate the upper and lower ends of the front end face of the dehumidification box and lead to the interior of the dehumidification box.
[0009] Through the above technical solution, the upward-blowing hot air will blow the small straw particles that have passed through the first, second, and third separating screens into the straw collection box. After the crushed straw enters the conveyor plate, it will be heated by multiple heating plates set on the conveyor plate. At the same time, the upward-blowing hot air from multiple hot air blowers inside the grain separation box will also heat the straw entering the threshing and crushing box. This is because heating the straw will destroy the crystalline structure of the straw fibers, reduce the tensile strength of the fibers, and make the fibers easier to be cut by the blades inside the first crusher, thereby accelerating the cutting rate and reducing the wear on the first crusher.
[0010] When the air inside the threshing and crushing box and the rice collection box reaches a certain level, the first motor located at the rear of the dehumidification box will start, driving the dehumidifying fan to rotate. The two electric valves will also start simultaneously to extract the humid air inside the threshing and crushing box and the rice collection box through two dehumidification pipes. The extracted humid air will be absorbed by two moisture-absorbing cottons located inside the dehumidification box. When the two moisture-absorbing cottons are used to a certain extent, the old two moisture-absorbing cottons need to be removed in time and replaced with two new moisture-absorbing cottons to prevent the moisture-absorbing cottons from losing their original effect after long-term use and affecting the storage of grains and straw.
[0011] Furthermore, a first separating cylinder is fixedly connected to the upper front end of the inner walls on both sides of the grain separating box, and a first separating screen is fixedly connected to the outlet of the rear end face of the first separating cylinder. A plurality of second separating cylinders are arranged between the end faces of the first separating screen and the upper inner wall of the threshing and crushing box that are close to each other. The two end faces of the plurality of second separating cylinders are respectively rotatably connected to the front and rear end faces of the grain separating box. A second separating screen is fixedly connected to the lower end of the first separating screen at the upper center of the grain separating box, and a third separating screen is fixedly connected to the lower end of the second separating screen at the lower center of the grain separating box.
[0012] Through the above technical solution, when the grain enters the grain separation box, it will gradually pass through the first separation cylinder and multiple second separation cylinders. After multiple hammering, the grain will be completely separated from the structure. The grain separated by multiple hammering will gradually pass through the first separation screen, the second separation screen and the second separation cylinder for multiple screening, and then enter the grain preliminary storage box to wait for the grain transport block and the conveyor belt to transport it through the grain transport box into the rice collection box.
[0013] Furthermore, a preliminary grain storage box is fixedly connected to the rear end of the lower inner wall of the grain separation box, and grain transport boxes are fixedly connected to both sides of the upper end face of the preliminary grain storage box. Conveyor belts are fixedly connected inside the two second crushers, and multiple grain transport blocks are fixedly connected to the outer sides of the two conveyor belts.
[0014] The above technical solution facilitates the safe and quick transportation of separated grains into the rice collection bin for storage.
[0015] Furthermore, a transport plate is fixedly connected to the rear end face of the first separating screen, and multiple heating plates are fixedly connected to the upper end face of the transport plate;
[0016] The above technical solution facilitates the auxiliary heating of straw.
[0017] Furthermore, a moving device is provided at the lower end of the threshing and crushing box;
[0018] The above technical solutions facilitate the movement of harvesters.
[0019] Furthermore, a harvesting shovel is fixedly connected to the front end of the threshing and crushing box, a shovel support is fixedly connected to the lower inner wall of the harvesting shovel, and a moving rod is rotatably connected to both end faces of the threshing and crushing box near the front end. A collecting roller is rotatably connected between the end faces of the two moving rods that are close to each other.
[0020] The above technical solution facilitates the initial cutting and collection of crops such as rice into the threshing and crushing chamber inside the harvester.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, after the straw of the combine harvester is heated and its internal structure is destroyed, the straw enters the first crusher for preliminary cutting. The straw then enters the second crusher for secondary cutting to ensure that the straw is crushed to a suitable size. It is then discharged from the second crusher and enters the grain separation box for storage. When the amount of straw burning particles in the grain separation box reaches a certain amount, the weighing plate located on the lower inner wall of the grain separation box will send a signal to the first and second electric telescopic rods to extend and retract synchronously. This pushes the first and second push plates, thereby gradually compressing the straw particles in the grain separation box to a suitable size for unified recycling.
[0023] 2. In this utility model, after the straw crushing and recycling function of the combine harvester is crushed, the straw will be heated by multiple heating plates set on the transport plate. At the same time, the upward hot air blown by multiple hot air blowers inside the grain separation box will also heat the straw entering the grain separation box. Because heating the straw will destroy the crystalline structure of the straw fiber, reduce the tensile strength of the fiber, and make the fiber easier to be cut by the blades inside the first crusher, thereby accelerating the cutting rate and reducing the wear of the first crusher.
[0024] 3. In this utility model, when the air inside the threshing and crushing box and the rice collection box of the combine harvester with straw crushing and recycling function reaches a certain level, the first motor located at the rear end of the dehumidification box will start, and then drive the dehumidifying fan to rotate. The two electric valves will also start simultaneously to extract the humid air inside the threshing and crushing box and the rice collection box through the two dehumidification pipes. The extracted humid air will be absorbed by the two moisture-absorbing cottons located inside the dehumidification box to prevent the moisture-absorbing cottons from losing their original effect after long-term use and affecting the storage of grains and straw. Attached Figure Description
[0025] Figure 1 This is a perspective view of a combine harvester with straw crushing and recycling function proposed in this utility model;
[0026] Figure 2 This is a side sectional view of a combine harvester with straw crushing and recycling function proposed in this utility model;
[0027] Figure 3 This is a front sectional view of a combine harvester with straw crushing and recycling function proposed in this utility model;
[0028] Figure 4 for Figure 2 Enlarged diagram of point A in the middle.
[0029] Legend:
[0030] 1. Mobile device; 2. Threshing and crushing box; 3. Heating and dehumidifying structure; 4. Rice collection box; 5. Cab; 6. Threshing and crushing straw structure; 7. Collection drum; 8. Rice lifter; 9. Movable rod; 10. Harvesting shovel;
[0031] 301. Transport plate; 302. Heating plate; 303. Hot air blower; 304. Dehumidifying pipe; 305. Electric valve; 306. Moisture-absorbing cotton; 307. Moisture-absorbing fan; 308. Dustproof net; 309. First motor; 310. Dehumidifying box;
[0032] 601. First electric telescopic rod; 602. First push plate; 603. Weighing plate; 604. Partition plate; 605. First crusher; 606. Second push plate; 607. Second electric telescopic rod; 608. Second crusher; 609. First separating screen; 610. Second separating screen; 611. Third separating screen; 612. First separating cylinder; 613. Second separating cylinder; 614. Grain transport block; 615. Conveyor belt; 616. Preliminary grain storage box; 617. Grain separating box; 618. Grain transport box; 619. Straw collection box. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figure 1-4 One embodiment of this utility model is a straw crushing and recycling combine harvester, which includes a heating and dehumidifying structure 3 and a rice collection box 4. The front end of the rice collection box 4 is fixedly connected to a cab 5, and the lower end of the cab 5 and the rice collection box 4 is fixedly connected to a threshing and crushing box 2. The threshing and crushing box 2 is provided with a straw threshing and crushing structure 6 inside.
[0035] The threshing and crushing straw structure 6 includes a straw collection box 619. A partition 604 is fixedly connected to the center of the upper inner wall of the straw collection box 619. Multiple first electric telescopic rods 601 are fixedly connected to the rear end of the upper inner wall of the straw collection box 619. A first push plate 602 is fixedly connected to the output end of the multiple first electric telescopic rods 601. A weighing plate 603 is fixedly connected to the lower inner wall of the straw collection box 619. Multiple second electric telescopic rods 607 are fixedly connected to the lower end of the front inner wall of the straw collection box 619. A second push plate 606 is fixedly connected to the output end of the multiple second electric telescopic rods 607. A first crusher 605 is fixedly connected between the front ends of the two inner walls of the straw collection box 619. A second crusher 608 is fixedly connected to the lower end face of the first crusher 605. A grain separation box 617 is fixedly connected to the front face of the straw collection box 619. When the separation of grains and straw is completed... After being crushed but not cut, the straw is transported to the dehumidification box 310 by the rotation of multiple second separation cylinders 613, and then enters the first crusher 605 through the transport plate 301 for preliminary straw crushing. The straw after preliminary crushing then enters the second crusher 608 for secondary crushing to ensure that the straw is crushed to a suitable size. Then it is discharged from the second crusher 608 and enters the grain separation box 617 for storage. When the amount of straw burning particles in the grain separation box 617 reaches a certain amount, the weighing plate 603 located on the lower inner wall of the grain separation box 617 will send a signal to the first electric telescopic rod 601 and the second electric telescopic rod 607 to extend and retract synchronously, thereby pushing the first push plate 602 and the second push plate 606 to gradually compress the straw particles in the grain separation box 617 to a suitable size for unified recycling.
[0036] like Figure 1 , 2As shown in Figures 3 and 4, the heating and dehumidifying structure 3 includes multiple hot air blowers 303. The front ends of the multiple hot air blowers 303 penetrate the lower end of the front inner wall of the grain separation box 617 and extend into the interior of the grain separation box 617. The rear ends of the threshing and crushing box 2 and the rice collection box 4 are both fixedly connected to dehumidifying pipes 304. The other ends of the two dehumidifying pipes 304 are both fixedly connected to electric valves 305. A dehumidifying box 310 is set between the close-to-each end faces of the two electric valves 305. A dustproof net 308 is fixedly connected to the center of the rear end face of the dehumidifying box 310. A first motor 309 is fixedly connected to the rear inner wall of the dehumidifying box 310. A moisture-absorbing fan 307 is fixedly connected to the output end of the first motor 309. Moisture-absorbing cotton 306 is set at both the upper and lower ends of the center of the rear end face of the dehumidifying box 310. The front ends of the two moisture-absorbing cotton 306 are... The hot air blown upwards will blow the small straw particles that have passed through the first separating screen 609, the second separating screen 610, and the third separating screen 611 into the straw collection box 619. After the crushed straw enters the conveyor plate 301, it will be heated by multiple heating plates 302 set on the conveyor plate 301. At the same time, the upward hot air blown by multiple hot air blowers 303 inside the grain separating box 617 will also heat the straw entering the threshing and crushing box 2. Because heating the straw will destroy the crystalline structure of the straw fiber, reduce the tensile strength of the fiber, and make the fiber easier to be cut by the blades inside the first crusher 605, thereby speeding up the cutting rate and reducing the wear of the first crusher 605.
[0037] When the air inside the threshing and crushing box 2 and the rice collection box 4 reaches a certain level, the first motor 309 located at the rear end of the dehumidification box 310 will start, driving the dehumidifying fan 307 to rotate. The two electric valves 305 will also start simultaneously to extract the humid air inside the threshing and crushing box 2 and the rice collection box 4 through the two dehumidification pipes 304. The extracted humid air will be absorbed by the two moisture-absorbing cotton 306 located inside the dehumidification box 310. When the two moisture-absorbing cotton 306 are used to a certain extent, the old two moisture-absorbing cotton 306 need to be removed in time and replaced with two new moisture-absorbing cotton 306 to prevent the moisture-absorbing cotton from losing its original effect after long-term use and affecting the storage of grains and straw.
[0038] like Figure 2 and 3As shown, a first separating cylinder 612 is fixedly connected to the upper front end of the inner walls on both sides of the grain separating box 617. A first separating screen 609 is fixedly connected to the outlet of the rear end face of the first separating cylinder 612. A plurality of second separating cylinders 613 are arranged between the end faces of the first separating screen 609 and the upper inner wall of the threshing and crushing box 2 that are close to each other. The two end faces of the plurality of second separating cylinders 613 are respectively rotatably connected to the front and rear end faces of the grain separating box 617. A second separating screen 610 is fixedly connected to the lower end of the first separating screen 609 near the center of the grain separating box 617. A third separation screen 611 is fixedly connected to the lower end of the second separation screen 610 near the center of the part. When the grain enters the grain separation box 617, it will gradually pass through the first separation cylinder 612 and multiple second separation cylinders 613. After multiple hammering, the grain and structure are completely separated. The grain separated by multiple hammering gradually passes through the first separation screen 609, the second separation screen 610 and the second separation cylinder 613 for multiple screening, and then enters the grain preliminary storage box 616 to wait for the grain transport block 614 and the conveyor belt 615 to transport through the grain transport box 618 into the rice collection box 4.
[0039] like Figure 2 As shown, a preliminary grain storage box 616 is fixedly connected to the rear end of the lower inner wall of the grain separation box 617. Grain transport boxes 618 are fixedly connected to both sides of the upper end face of the preliminary grain storage box 616. Conveyor belts 615 are fixedly connected inside the two second crushers 608. Multiple grain transport blocks 614 are fixedly connected to the outer sides of the two conveyor belts 615, so as to facilitate the safe and fast transport of the separated grains to the rice collection box 4 for storage.
[0040] like Figure 2 As shown, a transport plate 301 is fixedly connected to the rear end face of the first separating screen 609, and multiple heating plates 302 are fixedly connected to the upper end face of the transport plate 301 to facilitate auxiliary heating of the straw.
[0041] like Figure 1 , 2 As shown in Figure 3, a moving device 1 is provided at the lower end of the threshing and crushing box 2 to facilitate the movement of the harvester.
[0042] like Figure 1 and 2 As shown, a harvesting shovel 10 is fixedly connected to the front end of the threshing and crushing box 2, and a grain lifter 8 is fixedly connected to the lower inner wall of the harvesting shovel 10. Both ends of the threshing and crushing box 2 are rotatably connected to moving rods 9 near the front end. A collecting roller 7 is rotatably connected between the end faces of the two moving rods 9 that are close to each other, so as to facilitate the initial cutting and collection of rice and other crops into the threshing and crushing box 2 inside the harvester.
[0043] Working principle: When harvesting grain while simultaneously crushing and recycling straw, the device is transported to the field. The harvester is then started, and the grain is continuously advanced. Two levers 9 adjust the height of the grain, compressing it through the collecting drum 7 into the harvesting shovel 10. The grain inside the harvesting shovel 10 then passes through the grain lifter 8 into the grain separation chamber 617 within the threshing and crushing box 2. The grain then gradually passes through the first separation cylinder 612 and multiple second separation cylinders 613, undergoing multiple hammer blows to completely separate the grain from its structure. The separated grains gradually pass through multiple screenings of the first separating screen 609, the second separating screen 610, and the second separating cylinder 613, and then enter the grain preliminary storage box 616 to await transport by the grain transport block 614 and the conveyor belt 615 through the grain transport box 618 into the rice collection box 4. At the same time as the separation of grains and straw is carried out, multiple hot air blowers 303 located inside the threshing and crushing box 2 will also be started. Then, the upward blowing hot air will blow the small straw particles that have passed through the first separating screen 609, the second separating screen 610, and the third separating screen 611 into the straw collection box 619.
[0044] After the separation of grains and straw is completed, the uncut but crushed straw is transported to the dehumidification box 310 by the rotation of multiple second separation cylinders 613, and then enters the first crusher 605 through the conveyor plate 301 for preliminary straw crushing. When the crushed straw enters the conveyor plate 301, it is heated by multiple heating plates 302 set on the conveyor plate 301. At the same time, the upward hot air blown by multiple hot air blowers 303 inside the grain separation box 617 will also heat the straw entering the threshing and crushing box 2. Because heating the straw will destroy the crystalline structure of the straw fiber, reduce the tensile strength of the fiber, and make the fiber easier to be cut by the blades inside the first crusher 605, thereby accelerating the cutting rate and reducing the wear of the first crusher 605.
[0045] After the straw undergoes heat treatment to break down its internal structure, it enters the first crusher 605 for preliminary cutting. The pre-cut straw then enters the second crusher 608 for secondary cutting to ensure that the straw is pulverized to a suitable size. It is then discharged from the second crusher 608 and enters the grain separator 617 for storage. When the amount of straw particles entering the grain separator 617 reaches a certain level, the weighing plate 603 located on the lower inner wall of the grain separator 617 sends a signal to the first electric telescopic rod 601 and the second electric telescopic rod 607 to extend and retract synchronously. This pushes the first push plate 602 and the second push plate 606, thereby gradually compressing the straw particles inside the grain separator 617 to a suitable size for unified recycling.
[0046] When the air inside the threshing and crushing box 2 and the rice collection box 4 reaches a certain level, the first motor 309 located at the rear end of the dehumidification box 310 will start, driving the dehumidifying fan 307 to rotate. The two electric valves 305 will also start simultaneously to extract the humid air inside the threshing and crushing box 2 and the rice collection box 4 through the two dehumidification pipes 304. The extracted humid air will be absorbed by the two moisture-absorbing cotton 306 located inside the dehumidification box 310. When the two moisture-absorbing cotton 306 are used to a certain extent, the old two moisture-absorbing cotton 306 need to be removed in time and replaced with two new moisture-absorbing cotton 306 to prevent the moisture-absorbing cotton from losing its original effect after long-term use and affecting the storage of grains and straw.
[0047] All of the above-mentioned synchronously controlled electric telescopic poles are equipped with one electric telescopic pole as the main drive and the rest as auxiliary drives. The main front drive is controlled to extend and retract synchronously, which drives the auxiliary drives to extend and retract synchronously. This is a common technical means in existing electric telescopic pole synchronous control systems, and will not be elaborated on here.
[0048] The equipment also includes an integrated controller. The integrated controller receives signals from various components through input ports. After processing, these signals serve as the basis for control decisions. The integrated controller then uses a control algorithm to process the input signals and generates control outputs according to predetermined rules. Based on the results of the control algorithm, the integrated controller sends signals to the actuators through the output ports. The integrated controller can coordinate the work of various components and continuously monitor the operating status of each component, adjusting the control strategy in a timely manner based on feedback to cope with possible changes or anomalies. This solution is a commonly used technical method in the prior art and will not be elaborated on further here.
[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A combine harvester with straw crushing and recycling function, comprising a heating and dehumidification structure (3) and a rice collection box (4), characterized in that: The front end of the rice collection box (4) is fixedly connected to the cab (5), and the lower end of the cab (5) and the rice collection box (4) is fixedly connected to the threshing and crushing box (2). The threshing and crushing box (2) is provided with a threshing and crushing straw structure (6) inside. The threshing and crushing straw structure (6) includes a straw collection box (619). A partition (604) is fixedly connected to the center of the upper inner wall of the straw collection box (619). A plurality of first electric telescopic rods (601) are fixedly connected to the rear end of the upper inner wall of the straw collection box (619). A first push plate (602) is fixedly connected to the output end of the plurality of first electric telescopic rods (601). A weighing plate (603) is fixedly connected to the lower inner wall of the straw collection box (619). Multiple second electric telescopic rods (607) are fixedly connected to the lower end of the front inner wall of the box (619). The output ends of the multiple second electric telescopic rods (607) are fixedly connected to a second push plate (606). A first crusher (605) is fixedly connected between the front ends of the inner walls on both sides of the straw collection box (619). A second crusher (608) is fixedly connected to the lower end face of the first crusher (605). A grain separator (617) is fixedly connected to the front end face of the straw collection box (619).
2. The combine harvester with straw crushing and recycling function according to claim 1, characterized in that: The heating and dehumidification structure (3) includes multiple hot air blowers (303). The front ends of the multiple hot air blowers (303) penetrate the lower end of the front inner wall of the grain separation box (617) and extend into the interior of the grain separation box (617). The rear ends of the grain separation box (617) and the rice collection box (4) are fixedly connected to dehumidification pipes (304). The other ends of the two dehumidification pipes (304) are fixedly connected to electric valves (305). A dehumidification box (310) is provided between the end faces of the two electric valves (305) that are close to each other. A dustproof net (308) is fixedly connected to the center of the rear end face of the dehumidification box (310). A first motor (309) is fixedly connected to the inner rear wall of the dehumidification box (310). A moisture-absorbing fan (307) is fixedly connected to the output end of the first motor (309). Moisture-absorbing cotton (306) is provided at both the upper and lower ends of the center of the rear end face of the dehumidification box (310). The front ends of the two moisture-absorbing cotton (306) penetrate through the upper and lower ends of the front end face of the dehumidification box (310) and lead to the interior of the dehumidification box (310).
3. A combine harvester with straw crushing and recycling function according to claim 1, characterized in that: The grain separator (617) has a first separation cylinder (612) fixedly connected to the upper front end of the inner walls on both sides. The first separation cylinder (612) has a first separation screen (609) fixedly connected to the outlet of the rear end face. A plurality of second separation cylinders (613) are arranged between the end faces of the first separation screen (609) and the upper inner wall of the grain separator (617) that are close to each other. The two end faces of the plurality of second separation cylinders (613) are respectively rotatably connected to the front and rear end faces of the grain separator (617). The lower end of the first separation screen (609) at the upper center of the grain separator (617) is fixedly connected to a second separation screen (610). The lower end of the second separation screen (610) at the lower center of the grain separator (617) is fixedly connected to a third separation screen (611).
4. A combine harvester with straw crushing and recycling function according to claim 1, characterized in that: The lower inner wall of the grain separator (617) is fixedly connected to a preliminary grain storage box (616). Grain transport boxes (618) are fixedly connected to both sides of the upper end face of the preliminary grain storage box (616). Conveyor belts (615) are fixedly connected inside the two second crushers (608). Multiple grain transport blocks (614) are fixedly connected to the outer sides of the two conveyor belts (615).
5. A combine harvester with straw crushing and recycling function according to claim 3, characterized in that: The rear end face of the first separating screen (609) is fixedly connected to a transport plate (301), and the upper end face of the transport plate (301) is fixedly connected to a plurality of heating plates (302).
6. A combine harvester with straw crushing and recycling function according to claim 1, characterized in that: A moving device (1) is provided at the lower end of the threshing and crushing box (2).
7. A combine harvester with straw crushing and recycling function according to claim 1, characterized in that: The front end of the threshing and crushing box (2) is fixedly connected to a harvesting shovel (10), and the lower inner wall of the harvesting shovel (10) is fixedly connected to a grain lifter (8). Both sides of the threshing and crushing box (2) are rotatably connected to moving rods (9) near the front end, and a collecting roller (7) is rotatably connected between the end faces of the two moving rods (9) that are close to each other.