Crop straw recovery device and method

Abstract

The invention discloses a crop straw recycling device and method, and belongs to the field of straw recycling. Comprising a shell, one end of the shell is connected with a bundling machine, a conveying belt is installed in the shell, and a feeding roller is further rotationally arranged on the shell. In the moving process, soil or crushed materials adhering to the outer surface of the hollow main shaft can be cleaned, meanwhile, four rows of material grabbing rods are arranged, a plurality of slender rods are further arranged on each row of material grabbing rods, the four rows of slender rods can be synchronously retracted into the hollow main shaft, and in the retracting process, the residual crushed materials or soil of the slender rods can be scraped to the outer side of the hollow main shaft. The surface of the feeding roller can be cleaned, excessive impurities are prevented from being accumulated on the surface of the feeding roller, and meanwhile the cleaning burden of workers is relieved to a certain degree.

Description

Technical Field

[0001] The present invention relates to the field of straw recycling, and particularly relates to a device and method for recycling crop straws. Background Art

[0002] Straw is the general term for the stems and leaves of mature crops, usually referring to the remaining parts after harvesting the seeds of wheat, rice, corn, potatoes, rapeseed, cotton, sugarcane and other crops. More than half of the products of crop photosynthesis are present in the straw. Straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, etc., and is a renewable biological resource with multiple uses.

[0003] The straw recycling baler mainly includes a pickup mechanism responsible for collecting scattered straws in the field; a conveying mechanism that transfers the straws to the compression area, including components such as a screw conveyor and a feeding roller; a compression mechanism that pressurizes the straws through a hydraulic cylinder, a piston or a crank connecting rod to form a tight bale; and a baling mechanism that automatically draws a rope, automatically picks up the straw crops, automatically bales, and automatically cuts the rope. By adjusting the size of the sheave, the loop of the rope and the density of the bale during baling are changed, so that the bale is not loose or messy, and the formed bale is small and tight in volume, which is convenient for transportation and storage.

[0004] During the actual recycling process, some of the straws to be recycled have a certain amount of moisture on their surfaces. During the feeding process of the feeding roller, this moisture will cause the soil and debris on the straws to adhere to the surface of the feeding roller, and manual cleaning is required, which is a waste of time. Summary of the Invention

[0005] The present invention provides a device and method for recycling crop straws, which can solve the problem that the moisture remaining on the straws during the feeding process of the feeding roller causes the soil and debris to adhere to the surface of the feeding roller in the prior art.

[0006] A device for recycling crop straws includes a housing. One end of the housing is connected to a baler. A conveyor belt is installed inside the housing, and a feeding roller is rotatably provided on the housing.

[0007] The feeding roller includes a hollow main shaft. The hollow main shaft is provided with a plurality of moving grooves. A plurality of arc-shaped scraping plates are slidably provided in the moving grooves. A material-grabbing rod is also slidably provided on the hollow main shaft. The material-grabbing rod includes a plurality of thin rods. Two baffles are rotatably provided below the moving grooves. One end of each of the two baffles is fixedly provided with an inclined plate, and there is an included angle between the two inclined plates.

[0008] Further, a housing is fixedly connected to the feeding port of the baler. A funnel-shaped feeding port is fixedly connected to the top of the housing. A connecting shell is fixedly connected to the tail end of the housing. A connecting member is rotatably provided on the connecting shell. A connecting hole is opened on the connecting member. The housing is connected to a support leg through a mounting bracket, and tires are installed at the bottom of the baler.

[0009] Further, a number of first gears are rotatably provided on both sides of the baler. The first gears at the same positions on both sides rotate coaxially. A number of first gears on each side are driven by a first chain. A gearbox is fixedly provided on the side surface of the housing. The gearbox is connected to one end of a transmission shaft through a coupling. The other end of the transmission shaft is connected to a hydraulic system through a chain drive. The hydraulic system is connected to the main shaft of the conveyor belt.

[0010] Further, the output end of the gearbox is connected to the feeding roller. Two fourth gears are coaxially and fixedly provided on the output end of the gearbox. A fifth gear is rotatably provided on the upper side surface of the baler. A sixth gear is also rotatably provided at the feeding port of the baler. One of the fourth gears is connected to the fifth gear through a second chain. The other fourth gear is connected to the sixth gear through a third chain. A seventh gear is also fixedly provided on the housing. The seventh gear is connected to one of the first gears through a fourth chain.

[0011] Further, a conveyor belt is provided at the bottom inside the housing. A tensioning mechanism is installed on the conveyor belt. The housing includes an inner plate and an outer plate.

[0012] Further, the tensioning mechanism includes a fixing plate. The fixing plate is provided with a kidney-shaped groove. A rectangular plate is fixedly provided at one end of the kidney-shaped groove on the fixing plate. A threaded rod is rotatably provided on the rectangular plate. A driven shaft end of the conveyor belt is in threaded cooperation with the threaded rod. The driven shaft end is rotatably connected to the driven shaft of the conveyor belt. A sliding plate is slidably provided on the rectangular plate. The sliding plate is rotatably connected to the driven shaft end.

[0013] Further, the grabbing rods are specifically provided in four groups. First racks, second racks, third racks, and fourth racks are respectively fixedly provided at the bottom ends of the four groups of grabbing rods. The first rack and the second rack are arranged in parallel. The third rack and the fourth rack are arranged in parallel. The third rack and the fourth rack are located above the first rack and the second rack. A gear column is rotatably provided at the middle position between the first rack and the second rack. The gear column is located between the third rack and the fourth rack. The gear column meshes with the first rack, the second rack, the third rack, and the fourth rack at the same time.

[0014] Further, a second gear is also rotatably provided at one end inside the hollow main shaft. The second gear is fixedly connected to the gear column and rotates coaxially. Four groups of third gears are also rotatably provided outside the second gear. The four groups of third gears are circumferentially arrayed and all mesh with the second gear. Threaded rods are coaxially and fixedly provided on the four groups of third gears. Matching blocks are fixedly provided at the bottom ends of the arc-shaped scraping plates. The matching blocks are in threaded cooperation with the threaded rods. A connecting end is also fixedly provided at one end of the hollow main shaft.

[0015] Further, two baffle plates are rotatably provided below the moving groove inside the hollow main shaft. Both baffle plates are connected to the inside of the hollow main shaft through springs. When there is no external force on the springs, the two baffle plates are in contact with each other and there is an included angle. Notches are symmetrically opened at the middle position of the matching block.

[0016] A crop straw recycling method comprises the following steps:

[0017] S1: First, the tractor output shaft provides power, which drives the conveyor belt through the hydraulic system and transmits it to the gear box through the transmission shaft. The output shaft of the gear box provides power to the feeding roller and the baler main shaft. The conveyor belt transports the straw material, and the feeding roller puts the material into the baler entrance. The material enters the baler forming chamber for rolling and pressing.

[0018] S2: During the recycling process, for the debris or soil remaining on the surface of the feeding roller, the first motor drives the gear column and the second gear to rotate synchronously. The rotation of the gear column enables the four groups of grabbing rods to move inward synchronously. During the movement of the thin rods, the residue on the surface will be scraped off the outside of the hollow main shaft. The second gear drives the four groups of third gears to rotate to realize the rotation of the screw rod. The rotation of the screw rod enables the arc scraper to move in the moving groove to scrape off the residue on the outside of the hollow main shaft.

[0019] Beneficial Effects

[0020] 1. In the present application, a slidable arc-shaped scraper and a grabbing rod are provided on the hollow main shaft of the feeding roller. The arc-shaped scraper can move laterally on the hollow main shaft. During the movement, the dirt or debris adhering to the outer surface of the hollow main shaft can be cleaned. At the same time, the grabbing rods are provided with four rows, and each row of grabbing rods is also provided with a number of thin rods. The four rows of thin rods can be synchronously retracted into the hollow main shaft. During the retraction process, the debris or dirt remaining on the thin rods will be scraped off the outside of the hollow main shaft, so that the surface of the feeding roller can be cleaned to avoid excessive accumulation of impurities on its surface, and at the same time, the cleaning burden of the staff can be reduced to a certain extent.

[0021] 2. In the present application, two baffles are provided under the movable groove of the arc scraper. The two baffles are in a rotating closed state when the arc scraper is not working, so as to prevent debris from entering the hollow main shaft during the feeding process of the feeding roller. When the arc scraper needs to move, the two baffles can be opened to a certain angle by the inclined plate to facilitate the movement of the arc scraper. When the arc scraper returns to its original position, the spring can make the baffle return to its initial position. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a left view of the overall structure of the present invention;

[0023] Figure 2 It is a right view of the overall structure of the present invention;

[0024] Figure 3 It is a top view of the overall structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the interior of the housing of the present invention;

[0026] Figure 5 This is a schematic structural diagram of the tensioning mechanism of the present invention;

[0027] Figure 6 This is an enlarged schematic structural diagram of part A of the present invention;

[0028] Figure 7 This is a schematic structural diagram of the feeding roller of the present invention;

[0029] Figure 8 This is a schematic structural diagram of part of the feeding roller of the present invention;

[0030] Figure 9 This is an enlarged schematic structural diagram of part B of the present invention;

[0031] Figure 10 This is an enlarged schematic structural diagram of part C of the present invention;

[0032] Figure 11 This is a front view of the internal structure of the feeding roller of the present invention;

[0033] Figure 12 This is an enlarged schematic structural diagram of part D of the present invention.

[0034] Explanation of reference numerals:

[0035] 1. Baler; 2. Funnel-shaped feed inlet; 3. Outer shell; 4. Connecting shell; 5. Connecting piece; 6. First gear; 7. Hydraulic system; 8. Mounting bracket; 9. Coupling; 10. Seventh gear; 11. Fourth chain; 12. Tire; 13. Gearbox; 14. Transmission shaft; 15. Tractor power output shaft; 16. Support leg; 17. Fourth gear; 18. Fifth gear; 19. Sixth gear; 20. Second chain; 21. Third chain; 22. Connecting hole; 23. Conveyor belt; 24. Feeding roller; 25. Tensioning mechanism; 301. Inner plate; 302. Outer plate; 2401. Connection end; 2402. Hollow main shaft; 2403. Thin rod; 2404. Moving groove; 2405. Arc-shaped scraper; 2406. First rack; 2407. Third rack; 2408. Fourth rack; 2409. Second rack; 2410. Gear column; 2411. Second gear; 2412. Lead screw; 2413. Baffle; 2414. Inclined plate; 2415. Fitting block; 2416. Notch; 2417. Spring; 2418. Third gear; 2419. Long plate; 2501. Fixed plate; 2502. Threaded rod; 2503. Waist-shaped groove; 2504. Slide plate; 2505. Driven shaft end shaft; 2506. Rectangular plate. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] As Figures 1 to 12 shown, a crop straw recycling device provided by an embodiment of the present invention, as Figure 1 shown, includes a baler 1. A housing 3 is fixedly connected to the inlet of the baler 1. A funnel-shaped inlet 2 is fixedly connected to the top of the housing 3. A connecting shell 4 is fixedly connected to the tail end of the housing 3. A connecting member 5 is rotatably provided on the connecting shell 4. A connecting hole 22 is provided on the connecting member 5. The connecting member 5 is connected to a tractor through the connecting hole 22. After being connected to the tractor, it can drive the entire recycling device to move. The housing 3 plays a role in protecting internal components and providing support. The housing 3 is connected to support legs 16 through mounting brackets 8. Tires 12 are installed at the bottom of the baler 1.

[0038] The housing 3 is made of strong Q235B steel plate, which is formed by welding and processing. Special mounting holes are also designed on the housing 3 for mounting components such as a conveyor belt 23 and a feeding roller 24. Each component can be fixed to the housing 3 through bolts. The bolt connection method has the advantages of convenient installation and simple disassembly, which is convenient for later maintenance and repair. Above the housing 3, a funnel-shaped inlet 2 is designed. The inlet is designed in an inverted trapezoid shape, with an opening width of 1500 mm and a length of 1000 mm. The inner wall is smooth and inclined 45° towards the conveyor belt 23. Its shape and size are optimized to facilitate the entry of materials and prevent materials from accumulating at the inlet.

[0039] A number of first gears 6 are rotatably provided on both sides of the baler 1. The first gears 6 at the same positions on both sides rotate coaxially. A number of first gears 6 on each side are driven by a first chain (not shown in the figure), as Figure 2As shown in the figure, a support frame is fixedly provided on the side of the outer shell 3. A gearbox 13 is installed on the support frame. The gearbox 13 is connected to a transmission shaft 14 through a coupling 9. The other end of the transmission shaft 14 is connected to the tractor output shaft through a coupling 9. The transmission shaft 14 also provides a power source for the hydraulic pump on the hydraulic system 7 through chain drive. The hydraulic system 7 includes a hydraulic pump and a hydraulic motor. The hydraulic pump supplies energy to the hydraulic motor. The hydraulic motor is connected to the main shaft of the conveyor belt 23 through chain drive, thereby driving the conveyor belt 23 to operate. In this embodiment, the chain drive can specifically be achieved by installing gears at the power output end and the input end respectively, and connecting the two gears through a chain for transmission. Taking the chain drive between the transmission shaft 14 and the hydraulic system 7 as an example, gears are connected to the transmission shaft 14 and the hydraulic system 7 respectively, and the two gears are connected by a chain. The transmission shaft 14 rotates and drives the hydraulic pump on the hydraulic system 7 to work through chain drive. The hydraulic pump supplies energy to the hydraulic motor, and the hydraulic motor then supplies energy to the conveyor belt 23 through chain drive, ultimately realizing the transmission of the conveyor belt 23.

[0040] The output end of the gearbox 13 is connected to the feeding roller 24, and two fourth gears 17 are coaxially and fixedly provided on the output end of the gearbox 13. A fifth gear 18 is rotatably provided on the upper side of the baler 1. The fifth gear 18 is connected to the main shaft of the baler 1. A sixth gear 19 is also rotatably provided at the feeding port of the baler 1. One of the fourth gears 17 is connected to the fifth gear 18 through a second chain 20, and the other fourth gear 17 is connected to the sixth gear 19 through a third chain 21. The sixth gear 19 is connected to the spiral feeding shaft inside the baler 1. The fifth gear 18 is coaxially connected to one of the first gears 6. The rotation of the output shaft of the gearbox 13 can drive the feeding roller 24 to rotate, and the rotation of the fifth gear 18 is realized through the second chain 20. The fifth gear 18 drives the first gear 6 connected to it to rotate, and then drives a number of first gears 6 to rotate synchronously through the first chain. As Figure 1 shown, the first gears 6 on both sides rotate synchronously. A seventh gear 10 is also fixedly provided on the outer shell 3. The seventh gear 10 is connected to one of the first gears 6 through a fourth chain 11. During use, the power source is provided by the tractor output shaft and transmitted to the gearbox 13 through the transmission shaft 14. The output shaft of the gearbox 13 provides a power source to the feeding roller 24, the main shaft of the baler 1, and the spiral feeding shaft.

[0041] In this embodiment, a lateral power transmission method is adopted. The drive shaft 14 is arranged on the side of the housing 3. A hydraulic system 7 is arranged at the front end of the transport device, and its engine is connected to the drive shaft 14 through a chain drive. One end of the drive shaft 14 is connected to the power take-off shaft 15 of the tractor to obtain the power provided by the tractor, and the other end transmits the power to the baler 1 at the rear through the gearbox 13 to realize the power transmission of the whole machine. The drive shaft 14 is made of high-strength alloy steel, with sufficient strength and rigidity to withstand a large torque and ensure the stability of power transmission. At the connection of the drive shaft 14, high-precision couplings 9 are used to ensure the concentricity between shafts and reduce the energy loss and vibration during power transmission.

[0042] At the inner bottom of the housing 3, a conveyor belt 23 is provided. A tensioning mechanism 25 is installed on the conveyor belt 23. Above the conveyor belt 23 on the housing 3, a feeding roller 24 is rotatably provided. The housing 3 includes an inner plate 301 and an outer plate 302. The outer plate 302 is fixedly arranged outside the inner plate 301. The feeding roller 24 is rotatably connected to both the inner plate 301 and the outer plate 302. The conveyor belt 23 is a key component for material transmission. It is made of high-strength and wear-resistant rubber material, with a certain flexibility, which can ensure stable operation during transmission and is not easy to break. Its width is 1200 mm, and it can be designed according to the transportation volume of different materials to ensure sufficient transmission area so that the materials can be evenly and continuously transported. The surface of the conveyor belt 23 is provided with anti-slip textures to increase the friction with the materials and prevent the materials from slipping during transmission, ensuring the transportation efficiency.

[0043] During the working process of the conveyor belt 23, loosening will occur after long-term use, affecting the use efficiency. In this embodiment, we solve the loosening problem of the conveyor belt 23 by providing a tensioning mechanism 25, as Figure 5 and Figure 6 shown. Specifically, the tensioning mechanism 25 includes a fixing plate 2501. The fixing plate 2501 is fixed on the inner plate 301. The fixing plate 2501 is provided with a waist-shaped groove 2503. At one end of the waist-shaped groove 2503 on the fixing plate 2501, a rectangular plate 2506 is fixedly provided. A threaded rod 2502 is rotatably provided on the rectangular plate 2506. A driven shaft end shaft 2505 of the conveyor belt 23 is in threaded cooperation with the threaded rod 2502. The driven shaft end shaft 2505 passes through the inner plate 301 and can slide thereon. The driven shaft end shaft 2505 is rotatably connected to the driven shaft of the conveyor belt 23. A sliding plate 2504 is slidably provided on the rectangular plate 2506. The sliding plate 2504 is rotatably connected to the driven shaft end shaft 2505. When the conveyor belt 23 is loose, by manually adjusting the threaded rod 2502, the threaded rod 2502 can drive the driven shaft end shaft 2505 to slide on the waist-shaped groove 2503, further realizing the tensioning of the conveyor belt 23 and ensuring the normal operation of the equipment.

[0044] In this embodiment, the tensioning mechanism 25 is manually adjusted by the threaded rod 2502. During actual operation, it can also be automatically tensioned hydraulically. In this embodiment, the tensioning mechanism 25 further includes several groups of tensioning wheels. By adjusting the positions of the tensioning wheels, the tension degree of the conveyor belt 23 can be changed. The tensioning wheels adopt an adjustable structure, which is a conventional technical means in the art and will not be elaborated here. The adjusting mechanism is made of stainless steel and its surface is chrome-plated, having good wear resistance and corrosion resistance. The adjusting stroke is 50 mm

[0045] As Figure 7 shown, the feeding roller 24 is installed at the end of the conveyor belt 23 and corresponds to the feeding port of the baler 1. The surface of the feeding roller 24 is designed with special groove or protrusion structures (specifically, equally spaced thin rods 2403). During rotation, it can better grab the materials and smoothly convey them into the baler 1. The feeding roller shaft is connected to the housing 3 of the transmission device through bearings, ensuring that it can rotate flexibly, and its rotation speed can be adjusted according to the feeding requirements of the baler 1 to ensure that the feeding speed matches the working efficiency of the baler 1 and avoid the situation of too fast or too slow feeding.

[0046] This equipment uses a PLC with an imported main control chip and Siemens programming software, and its market usage rate is 40%. Its performance is more stable and reliable. The display screen uses a touch screen of a well-known domestic brand (MCGS), with Internet of Things functions. Users can remotely control and monitor the operating status and production output of the equipment through mobile phones.

[0047] In this embodiment, a high-precision pressure sensor is configured at the outlet of the baler 1 to monitor the forming pressure of the bale in real time. When the pressure value reaches the preset threshold, an instruction to close the hydraulic system 7 is immediately triggered, and the conveyor belt 23 stops running to prevent blockage caused by excessive material accumulation. The threshold of its pressure sensor can be freely changed in the system in the cab

[0048] During actual operation, since there is moisture on the surface of some straws, it is extremely easy to stick to mud. And during the feeding process of the feeding roller 24, the debris and mud on the straws are easy to adsorb on the surface of the feeding roller 24 after getting wet, which is inconvenient to clean. Therefore, in this embodiment, a telescopic thin rod 2403 and a slidable arc-shaped scraper 2405 are provided to solve the above problems. The telescopic thin rod 2403 can scrape off the attached broken materials or mud on it, and the arc-shaped scraper 2405 can scrape off the broken materials or mud on the surface of the feeding roller 24 to achieve the cleaning of the surface of the feeding roller 24.

[0049] The specific feeding roller 24 includes a hollow main shaft 2402. One end of the hollow main shaft 2402 is a detachable structure (shown as an open state in the figure for easy understanding). The detachable end of the hollow main shaft 2402 facilitates the cleaning of its interior. A number of arc-shaped scraping plates 2405 are slidably arranged on the hollow main shaft 2402. A number of moving grooves 2404 are also formed on the hollow main shaft 2402. The number of arc-shaped scraping plates 2405 move in the moving grooves 2404 respectively. A number of material-grabbing rods are also slidably arranged on the hollow main shaft 2402. The number of material-grabbing rods is circumferentially arrayed among them, and a number of thin rods 2403 are linearly arrayed on each column of material-grabbing rods. As Figure 11 shown, the bottom ends of each column of thin rods 2403 are fixedly connected to ensure their synchronous movement. In this embodiment, the number of material-grabbing rods is specifically set to four groups. The bottom ends of the four groups of material-grabbing rods are respectively fixedly provided with a first rack 2406, a second rack 2409, a third rack 2407, and a fourth rack 2408. Among them, the first rack 2406 and the second rack 2409 are arranged in parallel. The third rack 2407 and the fourth rack 2408 are arranged in parallel. And the third rack 2407 and the fourth rack 2408 are located above the first rack 2406 and the second rack 2409. A gear column 2410 is rotatably arranged at the middle position between the first rack 2406 and the second rack 2409. The gear column 2410 is also located between the third rack 2407 and the fourth rack 2408. The gear column 2410 is simultaneously meshed with the first rack 2406, the second rack 2409, the third rack 2407, and the fourth rack 2408. When the gear column 2410 rotates, the first rack 2406, the second rack 2409, the third rack 2407, and the fourth rack 2408 can be synchronously moved outward or inward, further realizing the movement of the four groups of material-grabbing rods.

[0050] At one end inside the hollow main shaft 2402, a second gear 2411 is also rotatably provided. The second gear 2411 is fixedly connected to the gear column 2410 and rotates coaxially. Four groups of third gears 2418 are rotatably provided outside the second gear 2411. The four groups of third gears 2418 are circumferentially arrayed and all mesh with the second gear 2411. Four lead screws 2412 are coaxially and fixedly provided on the four groups of third gears 2418. At the bottom ends of the arc-shaped scraping plates 2405, fitting blocks 2415 are fixedly provided. The fitting blocks 2415 are in threaded cooperation with the lead screws 2412. When the lead screws 2412 rotate, the arc-shaped scraping plates 2405 can be moved within the moving grooves 2404. At one end of the hollow main shaft 2402, a connection end 2401 is also fixedly provided. A first motor is fixedly provided inside the connection end 2401. The output end of the first motor is connected to the gear column 2410. By driving the rotation of the gear column 2410 by the first motor, during use, the first motor drives the synchronous rotation of the gear column 2410 and the second gear 2411. The gear column 2410 meshes and drives with the first rack 2406, the second rack 2409, the third rack 2407, and the fourth rack 2408 to achieve the synchronous inward movement of the four groups of material-grabbing rods. During the movement of the thin rod 2403, the residues on its surface will be scraped off outside the hollow main shaft 2402. At the same time, the second gear 2411 drives the four groups of third gears 2418 to rotate, realizing the rotation of the lead screws 2412. The rotation of the lead screws 2412 realizes the movement of the arc-shaped scraping plates 2405 within the moving grooves 2404, and the residues outside the hollow main shaft 2402 are scraped off, realizing the cleaning of the surface of the hollow main shaft 2402.

[0051] As Figure 9 shown, on both sides of the moving groove 2404 on the arc-shaped scraping plate 2405, long plates 2419 are also provided. The long plates 2419 can ensure that during the scraping process of the arc-shaped scraping plate 2405, the impurities scraped off enter the hollow main shaft 2402 through the moving groove 2404.

[0052] During the actual working process, the arc-shaped scraping plate 2405 needs to cooperate with the moving groove 2404 to achieve movement. However, if the moving groove 2404 is open, the straw scraps will enter the inside of the hollow main shaft 2402 through the moving groove 2404, which is likely to cause blockage. To avoid this problem, in this embodiment, a baffle 2413 is provided below the moving groove 2404 to prevent the straw scraps from entering the hollow main shaft 2402.

[0053] As Figure 10 and 12 shown, two baffles 2413 are rotatably provided inside the hollow main shaft 2402 below the moving groove 2404. The two baffles 2413 are both connected to the inside of the hollow main shaft 2402 through springs 2417. When there is no external force on the springs 2417, the two baffles 2413 are in contact with each other and there is an included angle, as Figure 9As shown, a notch 2416 is symmetrically opened at the middle position of the mating block 2415. At the same end of the two baffles 2413, an inclined plate 2414 is fixedly provided. There is a certain angle between the inclined plate 2414 and the baffle 2413. During use, when the arc-shaped scraper 2405 needs to move, the mating block 2415 moves forward. The mating block 2415 at the middle position of the notch 2416 will first move to the position between the two inclined plates 2414 and gradually contact the inclined plates 2414, squeezing the inclined plates 2414 towards both sides. The spring 2417 will be compressed, making the distance between the two baffles 2413 larger, so that the mating block 2415 can slide past the position between the two baffles 2413 to achieve the scraping function. When the mating block 2415 leaves the position between the two baffles 2413, the spring 2417 resumes its deformation and pushes the two baffles 2413 to close, preventing broken materials from entering the hollow main shaft 2402 during the feeding process.

[0054] A recycling method for a crop straw recycling device includes the following steps;

[0055] S1: First, the power source is provided by the output shaft of the tractor. On the one hand, it drives the conveyor belt 23 to run through the hydraulic system 7. On the other hand, it is transmitted to the gearbox 13 through the transmission shaft 14. The output shaft of the gearbox 13 provides the power source to the feeding roller 24, the main shaft of the baler 1, and the spiral feeding shaft. The conveyor belt 23 conveys the straw material, and the feeding roller 24 feeds the material into the inlet of the baler 1. The inner spiral feeding shaft ensures that the material evenly enters the forming chamber of the baler 1 for coiling and forming;

[0056] S2: During the recycling process, for the debris or soil remaining on the surface of the feeding roller 24, through the synchronous rotation of the gear column 2410 and the second gear 2411 driven by the first motor, the rotation of the gear column 2410 realizes the synchronous inward movement of the four groups of material-grabbing rods. During the movement of the thin rod 2403, the residues on its surface will be scraped outside the hollow main shaft 2402. The second gear 2411 drives the four groups of third gears 2418 to rotate, realizing the rotation of the lead screw 2412. The rotation of the lead screw 2412 realizes the movement of the arc-shaped scraper 2405 in the movement groove 2404, and the residues outside the hollow main shaft 2402 are scraped off, realizing the cleaning of the surface of the hollow main shaft 2402.

[0057] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship 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, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation of the present invention. In addition, "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0058] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The above has described in detail an embodiment of the present invention, but the content described is only a preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A crop straw recycling device, characterized in that, It includes a housing (3). One end of the housing (3) is connected to a baler (1). A conveyor belt (23) is installed inside the housing (3). A feeding roller (24) is rotatably provided on the housing (3). The feeding roller (24) includes a hollow main shaft (2402). The hollow main shaft (2402) is provided with a number of moving grooves (2404). A number of arc-shaped scraping plates (2405) are slidably provided in each moving groove (2404). A long plate (2419) is fixedly provided on the arc-shaped scraping plate (2405). A material-grabbing rod is also slidably provided on the hollow main shaft (2402). The material-grabbing rod includes a number of thin rods (2403). Two baffle plates (2413) are rotatably provided below the moving groove (2404). One end of each of the two baffle plates (2413) is fixedly provided with an inclined plate (2414). There is an included angle between the two inclined plates (2414).

2. The crop straw recycling device according to claim 1, characterized in that, The baler (1) is fixedly connected to the housing (3) at the feed inlet. A funnel-shaped feed inlet (2) is fixedly connected to the top of the housing (3). A connecting shell (4) is fixedly connected to the tail end of the housing (3). A connecting piece (5) is rotatably provided on the connecting shell (4). A connecting hole (22) is opened on the connecting piece (5). The housing (3) is connected to a support leg (16) through a mounting bracket (8). Tires (12) are installed at the bottom of the baler (1).

3. The crop straw recycling device according to claim 2, wherein, A number of first gears (6) are rotatably provided on both sides of the baler (1). The first gears (6) at the same positions on both sides rotate coaxially. A number of first gears (6) on each side are driven by a first chain. A gearbox (13) is fixedly provided on the side of the housing (3). One end of a transmission shaft (14) is connected to the gearbox (13) through a coupling (9). The other end of the transmission shaft (14) is connected to a hydraulic system (7) through a chain drive. The hydraulic system (7) is connected to the main shaft of the conveyor belt (23).

4. The straw recycling device according to claim 3, characterized in that, The output end of the gearbox (13) is connected to the feeding roller (24). Two fourth gears (17) are coaxially and fixedly provided on the output end of the gearbox (13). A fifth gear (18) is rotatably provided on the upper side of the baler (1). A sixth gear (19) is also rotatably provided at the feed inlet of the baler (1). One of the fourth gears (17) is connected to the fifth gear (18) through a second chain (20). The other fourth gear (17) is connected to the sixth gear (19) through a third chain (21). A seventh gear (10) is also fixedly provided on the housing (3). The seventh gear (10) is connected to one of the first gears (6) through a fourth chain (11).

5. The crop straw recycling device according to claim 1, characterized in that, A conveyor belt (23) is provided at the bottom inside the housing (3). A tensioning mechanism (25) is installed on the conveyor belt (23). The housing (3) includes an inner plate (301) and an outer plate (302).

6. The crop straw recycling device according to claim 5, wherein, The tensioning mechanism (25) includes a fixing plate (2501). The fixing plate (2501) is provided with a waist-shaped groove (2503). At one end of the waist-shaped groove (2503) on the fixing plate (2501), a rectangular plate (2506) is fixedly provided. A threaded rod (2502) is rotatably provided on the rectangular plate (2506). The driven shaft end shaft (2505) of the conveyor belt (23) is in threaded cooperation with the threaded rod (2502). The driven shaft end shaft (2505) is rotatably connected to the driven shaft of the conveyor belt (23). A sliding plate (2504) is slidably provided on the rectangular plate (2506). The sliding plate (2504) is rotatably connected to the driven shaft end shaft (2505).

7. The crop straw recycling device according to claim 1, characterized in that The material grabbing rods are specifically arranged in four groups. At the bottom ends of the four groups of material grabbing rods, a first rack (2406), a second rack (2409), a third rack (2407), and a fourth rack (2408) are respectively fixedly provided. Among them, the first rack (2406) and the second rack (2409) are arranged in parallel. The third rack (2407) and the fourth rack (2408) are arranged in parallel. And the third rack (2407) and the fourth rack (2408) are located above the first rack (2406) and the second rack (2409). A gear column (2410) is rotatably provided at the middle position between the first rack (2406) and the second rack (2409). The gear column (2410) is also located between the third rack (2407) and the fourth rack (2408). The gear column (2410) is simultaneously meshed with the first rack (2406), the second rack (2409), the third rack (2407), and the fourth rack (2408).

8. The crop straw recycling device according to claim 7, wherein, At one end inside the hollow main shaft (2402), a second gear (2411) is also rotatably provided. The second gear (2411) is fixedly connected to the gear column (2410) and rotates coaxially. Four groups of third gears (2418) are rotatably provided outside the second gear (2411). The four groups of third gears (2418) are circumferentially arrayed and are all meshed with the second gear (2411). Four groups of lead screws (2412) are coaxially and fixedly provided on the four groups of third gears (2418). At the bottom ends of the arc-shaped scraping plates (2405), fitting blocks (2415) are fixedly provided. The fitting blocks (2415) are in threaded cooperation with the lead screws (2412). One end of the hollow main shaft (2402) is also fixedly provided with a connection end (2401).

9. The straw recycling device according to claim 8, characterized in that, Two baffle plates (2413) are rotatably provided below the moving groove (2404) inside the hollow main shaft (2402). The two baffle plates (2413) are both connected to the inside of the hollow main shaft (2402) through springs (2417). When there is no external force on the springs (2417), the two baffle plates (2413) are in contact with each other and there is an included angle. At the middle position of the fitting block (2415), a notch (2416) is symmetrically opened.

10. A method for recycling crop straws, characterized in that, Applied to a crop straw recycling device according to any one of claims 1-9, it includes the following steps: S1: First, the power source is provided by the output shaft of the tractor. On the one hand, it drives the conveyor belt (23) to run through the hydraulic system (7). On the other hand, it is transmitted to the gearbox (13) through the transmission shaft (14). The output shaft of the gearbox (13) provides the power source to the feeding roller (24) and the main shaft of the baler (1). The conveyor belt (23) conveys the straw material, and the feeding roller (24) feeds the material into the inlet of the baler (1). The material enters the forming chamber of the baler (1) for rolling and forming. S2: During the recycling process, for the debris or soil remaining on the surface of the feeding roller (24), through the synchronous rotation of the gear column (2410) and the second gear (2411) driven by the first motor, the rotation of the gear column (2410) causes the four groups of material-grabbing rods to move inwards synchronously. During the movement of the thin rod (2403), the residues on its surface will be scraped outside the hollow main shaft (2402). The second gear (2411) drives the four groups of third gears (2418) to rotate, realizing the rotation of the lead screw (2412). The rotation of the lead screw (2412) causes the arc-shaped scraper (2405) to move in the moving groove (2404), and the residues outside the hollow main shaft (2402) are scraped off.

Images