A high-quality sorting and double-threshing thresher with adjustable threshing gap

Abstract

A high-precision sorting and re-threshing corn thresher with adjustable threshing gap is characterized by the following: the device includes a frame, a threshing mechanism, a screening mechanism, and a sorting and re-threshing mechanism. The threshing mechanism is installed in the upper part of the frame, the screening mechanism is installed on the left side of the lower part, and the sorting and re-threshing mechanism is installed on the right side. In summary, the threshing mechanism of this invention uses a camera to observe the material condition, and the self-adjusting diameter threshing drum, combined with a rigid-flexible threshing component, ensures uniform threshing intensity and reduces the incomplete threshing rate. The screening mechanism uses a camera to observe the material falling, and a self-adjusting eccentricity disc controls the reciprocating motion distance of the rake teeth, so that the material is evenly distributed on the screen plate, improving the sorting quality. The sorting and re-threshing mechanism uses a camera to observe the threshing process, and the opening and closing movement of the baffle collects the material with a high incomplete threshing rate, which is then conveyed by an auger. The camera observes the material distribution between the threshing drums, and the pneumatic system controls the belt conveyor position, so that the material is evenly distributed between the drums.

Description

Technical Field

[0001] This invention pertains to agricultural machinery and mainly relates to a high-quality sorting and threshing thresher with adjustable threshing gap. Background Technology

[0002] Existing threshers have a concentrated feeding process during threshing, which affects the threshing quality. After threshing, the concentrated material falling into the threshing chamber results in low sorting efficiency. The fixed feeding inlet and concentrated feeding during the re-threshing process lead to a high rate of incomplete threshing of crops and severe damage to the grains. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned technical problems by developing a high-quality sorting and re-threshing thresher with adjustable threshing gap. This thresher utilizes dual threshing drums with self-adjusting diameters, counter-rotating rakes with adjustable movement distance and tooth spacing, baffles that open and close based on the material conditions at the tail end of the sorted sieve, an auger, and a belt with controllable feeding position to improve threshing efficiency while reducing the unthreshed rate. The invention achieves this by providing a high-quality sorting and re-threshing thresher with adjustable threshing gap, characterized in that the device includes a frame, a threshing mechanism, a screening mechanism, and a sorting and re-threshing mechanism. The threshing mechanism is installed in the upper part of the frame, the screening mechanism is installed on the left side of the lower part, and the sorting and re-threshing mechanism is installed on the right side.

[0004] The threshing mechanism includes a feeding hopper, threshing drums, and a first camera. The feeding hopper is fixedly mounted on the upper part of the frame. The threshing mechanism has two parallel and oppositely arranged threshing drums. Each threshing drum includes a variable diameter shaft, a gear set, a first controller, a variable diameter rod, and a rigid-flexible combined threshing component. The variable diameter shaft is fixedly mounted on the frame. The gear set includes a first gear, a second gear, a third gear, and a fourth gear. The second and fourth gears are rotatably mounted at both ends of the variable diameter shaft. The first and third gears mesh with the second and fourth gears, respectively. The output end of the first motor is fixedly mounted to the gear shaft of the first gear. A first battery is connected to the first motor. The output end of the second motor is fixedly mounted to the gear shaft of the third gear. The third battery is connected to the second motor. Both the first and second motors are fixedly mounted on the frame. The first controller can wirelessly receive signals. The first controller is fixedly mounted on the first motor. One end of the first controller is connected to the first battery, and the other end is connected to the first motor. The variable diameter rod includes ball bearings and a variable diameter rod. The threshing unit consists of a variable-diameter ball and a variable-diameter rod. One end of the variable-diameter rod is fixed with a ball bearing. The second gear has spherical grooves at equal angles along its circumference, allowing the ball bearing to roll within these grooves. The other end of the variable-diameter rod is fixed with a variable-diameter ball. The fourth gear has cylindrical through holes at equal angles along its circumference, the same number as the spherical grooves. The other end of the variable-diameter rod is inserted into the cylindrical through holes corresponding to the spherical grooves. The rigid-flexible combined threshing component includes threshing teeth and a threshing blade assembly. The threshing teeth are triangular rings and are fixedly mounted on the variable-diameter rod at intervals along the circumference of the second gear. The threshing teeth are equidistantly arrayed along the axial direction of the variable-diameter rod and are fixed perpendicular to the rod. The threshing blade assembly is a circumferential array of hollow threshing blades, equidistantly distributed around the annular contour of the threshing teeth. A first camera is fixed on the frame above the sieve plate, and a second battery connects to the first camera. The first camera transmits the material condition after threshing to the first controller, enabling automatic adjustment of the diameters of the two threshing drums based on the material condition.

[0005] The screening mechanism includes a screen plate, side plates, a rake tooth pitch-changing device, and a first camera. The screen plate is fixedly mounted in the lower part of the frame and is inclined, with equidistantly arranged screen holes in the upper part. Two side plates are fixedly mounted on the frame on both sides of the screen plate. The screening mechanism has four rake tooth pitch-changing devices symmetrically distributed about the center of the upper part of the screen plate. Each rake tooth pitch-changing device is parallel to the length direction of the screen plate. The rake tooth pitch-changing device includes a pitch-changing device and a rake tooth device. The pitch-changing component includes a positioning block, a rotating disk, a slide groove, a slide rod, a screw, a second controller, a pitch-changing disk, a connecting rod, a positioning rod, and a slide rail. The positioning block is fixedly mounted on the side plate and has a through hole in its center. The central shaft of the rotating disk is rotatably installed in the through hole. A fourth motor is fixedly mounted on the positioning block. The output end of the variable-pitch disk is fixed to the central axis of the rotating disk. The sixth battery is connected to the fourth motor. The slide is radially fixed to the rotating disk. The slide opening is an isosceles trapezoid with a closed hole at the top. The slide rod can be slidably installed in the slide. The outer contour of the slide rod is adapted to the shape of the slide opening. A cylindrical through hole is opened at the center of the slide rod, and an internal thread is provided at the center of the cylindrical through hole. The screw is rotatably connected to the slide rod through its external thread. The third motor is fixed to the side of the rotating disk. The output end of the third motor is fixed to the screw. The fifth battery is connected to the third motor. The second controller can wirelessly receive signals. The second controller is fixed to the third motor. One end of the second controller is connected to the fifth battery, and the other end is connected to the third motor. The lower end face of the variable-pitch disk is fixed to the center line of the slide rod end face. The variable pitch disc has a circular groove on its upper surface. A small cylinder is fixedly installed in the middle of the connecting rod, and the small cylinder is inserted into the circular groove. The positioning rod is fixedly installed on the frame, and the slide rail is fixedly installed on the end face of the positioning rod. One end of the connecting rod is slidably installed in the groove of the slide rail, and the connecting rod passes through the side plate. The rake tooth component includes a hollow shell, a second positioning shell, a telescopic shaft, a fourth controller, a fixed rod, telescopic rake teeth, fixed rake teeth, and a groove block. The hollow shell is fixedly installed on the other end of the connecting rod. An elongated hole is opened at the center of the bottom of the hollow shell. The second positioning shell is fixedly installed at the bottom of the hollow shell. The thirteenth motor is fixedly installed in the second positioning shell. The output end of the thirteenth motor is fixedly installed to one end of the telescopic shaft, and the other end of the telescopic shaft is fixedly installed to the middle of the fixed rod, and the telescopic shaft is inserted into the elongated hole. The fifteenth battery is connected to the thirteenth motor. The fourth controller can wirelessly receive signals and is fixedly mounted on the thirteenth motor. One end of the fourth controller is connected to the fifteenth battery, and the other end is connected to the thirteenth motor. The tops of the fixed rake teeth are fixedly mounted at equal intervals on the front face of the hollow shell. The tops of the telescopic rake teeth are fixedly mounted at equal intervals on the fixed rod, and each telescopic rake tooth is located between two adjacent fixed rake teeth. The telescopic rake teeth can be slidably mounted on the front face of the hollow shell. Two groove blocks are fixedly mounted on the bottom face of the hollow shell, and the two groove blocks are located on both sides of the telescopic shaft. The groove blocks have grooves that are adapted to the contour and position of the telescopic rake teeth. The telescopic rake teeth can be slidably mounted in the grooves. Thus, the reciprocating movement distance and spacing of the rake teeth can be automatically adjusted according to the material falling situation.

[0006] The sorting and re-extraction mechanism includes a sorting device, a third camera, a re-extraction device, and a second camera. The sorting device includes a screen plate, diverting blocks, baffles, hinges, a pull rod, a discharge plate, a third controller, and a first baffle. The bottom of the screen plate has four equally spaced cuboid openings. The four baffles are hinged to the four cuboid openings. Three diverting blocks are equally spaced at the tail of the screen plate, with each diverting block located between two adjacent baffles. The pull rod is fixed to the center of the lower end face of the baffle, and a cylindrical through hole is provided at the center of the pull rod. The cylindrical through hole is provided with an internal thread, the fifth motor shaft is provided with an external thread, the pull rod is rotatably connected to the fifth motor shaft through the thread, the discharge plate is fixedly mounted parallel to the bottom of the screen plate, the fifth motor is fixedly mounted on the discharge plate, the seventh battery is connected to the fifth motor, the third controller can wirelessly receive signals, the third controller is fixedly mounted on the fifth motor, one end of the third controller is connected to the seventh battery, the other end is connected to the fifth motor, the first baffle plate is fixedly mounted on both sides of the tail of the screen plate, and two third cameras are fixedly mounted on the inner side of its top plate, the ninth battery is connected to the third camera;The re-extraction device includes a second baffle shell, an auger, a first positioning shell, and a belt conveyor. An isosceles trapezoidal plate is fixedly mounted at the bottom of the screen plate, and a rectangular plate is fixedly mounted at the bottom of the isosceles trapezoidal plate. The first positioning shell is fixedly mounted on the bottom surface of the tail of the discharge plate. A sixth motor is fixedly mounted inside the first positioning shell, and the output end of the sixth motor is fixedly mounted to the auger shaft. An eighth battery is connected to the sixth motor. The auger is inclined, and the auger shaft is rotatably mounted on the discharge plate and the rectangular plate. A second baffle shell is provided outside the auger. The bottom and top ends of the contact surfaces between the second baffle shell and the first baffle plate are respectively provided with a re-extraction inlet and a discharge outlet. The belt conveyor includes a third baffle shell, a frame, a pneumatic system, and a moving shaft assembly. The machine consists of a fixed shaft assembly and belt. A third baffle shell, with a U-shaped slot, is fixed to both sides of the top of the second baffle shell. Two pneumatic systems are distributed on the two bottom plates of the third baffle shell. Each pneumatic system comprises a seventh motor, a fifth controller, an air pump, and a cylinder. The seventh motor is fixed to the bottom plate of the third baffle shell. A sixteenth battery connects to the seventh motor. The fifth controller, capable of wirelessly receiving signals, is fixed to the seventh motor. One end of the fifth controller is connected to the sixteenth battery, and the other end is connected to the seventh motor. The output end of the seventh motor is fixed to the input end of the air pump, and the output end of the air pump is fixed to one end of the cylinder. The other end of the cylinder is fixed to the bottom rod of the frame. The frame is placed on the machine stand and moved... The moving shaft assembly includes a first moving shaft and a second moving shaft. The first moving shaft is rotatably mounted on the upper left side of the frame end face. The eighth motor is fixedly mounted on the frame, and its output end is fixedly mounted to the first moving shaft. The tenth battery is connected to the eighth motor. The second moving shaft is rotatably mounted on the lower right side of the frame end face. The eleventh motor is fixedly mounted on the frame, and its output end is fixedly mounted to the second moving shaft. The thirteenth battery is connected to the eleventh motor. The fixed shaft assembly includes a first fixed shaft, a second fixed shaft, and a third fixed shaft. The second fixed shaft has the same height as the first moving shaft. The third fixed shaft is parallel to the second fixed shaft and located below the second moving shaft. The first fixed shaft and the third fixed shaft... With the same height, the first, second, and third fixed shafts can all be rotatably mounted on the third baffle shell. A belt sequentially passes over the second fixed shaft, the first moving shaft, the second moving shaft, the first fixed shaft, and the third fixed shaft. The output ends of the ninth, tenth, and twelfth motors are fixedly mounted to the first, second, and third fixed shafts, respectively. The eleventh battery is connected to the ninth motor, the twelfth battery to the tenth motor, and the fourteenth battery to the twelfth motor. The second camera is fixedly mounted on the frame above the two threshing drums, and the fourth battery is connected to the second camera. Thus, automatic sorting and feeding of materials to be threshed can be achieved based on the actual threshing conditions.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention mainly includes a threshing mechanism, a screening mechanism, and a sorting and re-threshing mechanism. The threshing mechanism uses a camera to observe the material condition, and the self-adjusting diameter threshing drum, combined with a rigid-flexible threshing component, makes the threshing intensity uniform and reduces the incomplete threshing rate. The screening mechanism uses a camera to observe the material falling, and the self-adjusting eccentricity disc controls the reciprocating motion distance of the rake teeth, so that the material is evenly distributed on the screen plate, improving the sorting quality. The sorting and re-threshing mechanism uses a camera to observe the threshing situation, and the opening and closing movement of the baffle collects the material with a high incomplete threshing rate, and then uses an auger to convey it. The camera observes the material distribution between the threshing drums, and the pneumatic system controls the position of the belt conveyor, so that the material is evenly distributed between the drums. Attached Figure Description

[0008] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0009] Figure 1 Axonometric drawing of a high-quality sorting and double-threshing thresher with adjustable threshing gap.

[0010] Figure 2 This is an isometric view of the threshing drum (with enlarged details).

[0011] Figure 3 This is an isometric view of part of the sorting and descrambling device (with enlarged details).

[0012] Figure 4 This is a schematic diagram of a belt conveyor system (with component drawings).

[0013] Figure 5 This is an isometric view of the rake tooth pitch control device (with a close-up view).

[0014] Figure 6 This is an isometric drawing of part of the rake tooth components.

[0015] Part number description in the image:

[0016] 1. Feed hopper 2. Frame 3. Feed inlet 4. First battery 5. First controller 6. First motor 7. First camera 8. Second battery 9. Threshing teeth 10. Threshing blade 11. First gear 12. Second gear 13. Ball bearing 14. Variable diameter rod 15. Variable diameter ball 16. Screen plate 17. Screen hole 18. Third gear 19. Fourth gear 20. Second motor 21. Third battery 22. Variable diameter shaft 23. Second camera 24. Fourth battery 25. Fixed... Positioning rod 26, slide rail 27, connecting rod 28, variable pitch disc 29, slide groove 30, fifth battery 31, second controller 32, rotating disc 33, third motor 34, positioning block 35, fourth motor 36, sixth battery 37, fixed rake teeth 38, telescopic rake teeth 39, hollow shell 40, third controller 41, seventh battery 42, fifth motor 43, pull rod 44, baffle 45, eighth battery 46, sixth motor 47, first positioning shell 48 49. Discharge plate 50. Diverter block 51. First baffle shell 52. Re-extraction inlet 53. Third camera 54. Ninth battery 55. Screwdriver 56. Second baffle shell 57. Seventh motor 58. Belt 59. Air pump 60. Cylinder 61. Eighth motor 62. Tenth battery 63. Eleventh battery 64. Ninth motor 65. Third baffle shell 66. Discharge port 67. First fixed shaft 68. Second fixed shaft 69. Tenth motor 70. Twelfth battery 71. Thirteenth battery; 72. Eleventh motor; 73. Third fixed shaft; 74. Fourteenth battery; 75. Twelfth motor; 76. Slide rod; 77. Screw; 78. Groove block; 79. Hinge; 80. Fixed rod; 81. Telescopic shaft; 82. Thirteenth motor; 83. Fourth controller; 84. Fifteenth battery; 85. Long slot; 86. Second positioning shell; 87. First moving shaft; 88. Frame; 89. Second moving shaft; 90. Sixteenth battery; 91. Fifth controller; 92. Side plate. Detailed Implementation

[0017] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. A high-quality sorting and re-threshing thresher with adjustable threshing gap is characterized in that: the device includes a frame 2, a threshing mechanism, a screening mechanism, and a sorting and re-threshing mechanism. The threshing mechanism is installed in the upper part of the frame 2, the screening mechanism is installed on the left side of the lower part, and the sorting and re-threshing mechanism is installed on the right side.

[0018] The threshing mechanism includes a feeding hopper 1, a threshing drum, and a first camera 7. The feeding hopper 1 is fixedly mounted on the upper end of the frame 2. The threshing mechanism has two parallel and oppositely arranged threshing drums. Each threshing drum includes a variable diameter shaft 22, a gear set, a first controller 5, a variable diameter rod, and a rigid-flexible combined threshing component. The variable diameter shaft 22 is fixedly mounted on the frame 2. The gear set includes a first gear 11, a second gear 12, a third gear 18, and a fourth gear 19. The second gear 12 and the fourth gear 19 are rotatably mounted at both ends of the variable diameter shaft 22. The first gear 11 and the third gear 18 are rotatably mounted at both ends of the variable diameter shaft 22. 8 meshes with the second gear 12 and the fourth gear 19 respectively. The output end of the first motor 6 is fixedly mounted to the gear shaft of the first gear 11. The first battery 4 is connected to the first motor 6. The output end of the second motor 20 is fixedly mounted to the gear shaft of the third gear 18. The third battery 21 is connected to the second motor 20. Both the first motor 6 and the second motor 20 are fixedly mounted on the frame 2. The first controller 5 can wirelessly receive signals. The first controller 5 is fixedly mounted on the first motor 6. One end of the first controller 5 is connected to the first battery 4, and the other end is connected to the first motor 6. The variable diameter rod includes a roller. The components include a ball 13, a reducing rod 14, and a reducing ball 15. One end of the reducing rod 14 is fixedly fitted with a ball 13. The second gear 12 has spherical grooves at equal angles along its base circle edge, allowing the ball 13 to roll within these grooves. The other end of the reducing rod 14 is fixedly fitted with a reducing ball 15. The fourth gear 19 has cylindrical through holes at equal angles along its base circle edge, the same number as the spherical grooves. The other end of the reducing rod 14 is inserted into the corresponding cylindrical through holes. The rigid-flexible combined threshing component includes threshing teeth 9 and a threshing blade assembly. The threshing teeth 9 have a triangular ring structure. The threshing teeth 9 are fixedly mounted on the variable diameter rod 14 at intervals along the circumference of the second gear 12. The threshing teeth 9 are equidistantly arranged on the variable diameter rod 14. The threshing teeth 9 are fixedly mounted perpendicular to the variable diameter rod 14. The threshing blade group is formed by a circumferential array of threshing blades 10 and is hollow. The threshing blade group is equidistantly distributed around the annular contour of the threshing teeth 9. The first camera 7 is fixedly mounted on the frame 2 above the screen plate 16. The second battery 8 is connected to the first camera 7. The first camera 7 can transmit the material condition after threshing to the first controller 5. Thus, the diameter of the two threshing drums can be automatically adjusted according to the material condition.

[0019] The screening mechanism includes a screen plate 16, side plates 91, a rake tooth pitch-changing device, and a first camera 7. The screen plate 16 is fixedly mounted in the lower part of the frame 2 and is inclined, with equidistantly arranged screen holes 17 on the upper part. Two side plates 91 are fixedly mounted on the frame 2 on both sides of the screen plate 16. The screening mechanism has four rake tooth pitch-changing devices symmetrically distributed about the center of the upper part of the screen plate 16. Each rake tooth pitch-changing device is parallel to the length direction of the screen plate 16. The rake tooth pitch-changing device includes a pitch-changing device and a rake tooth device. The pitch-changing component includes a positioning block 34, a rotating disk 32, a slide groove 29, a slide rod 75, a screw 76, a second controller 31, a pitch-changing disk 28, a connecting rod 27, a positioning rod 25, and a slide rail 26. The positioning block 34 is fixedly mounted on the side plate 91, and its... A through hole is provided in the center of the rotating disk 32, and the central axis of the rotating disk 32 is rotatably installed in the through hole. The fourth motor 35 is fixedly mounted on the positioning block 34, and the output end of the fourth motor 35 is fixedly mounted to the central axis of the rotating disk 32. The sixth battery 36 is connected to the fourth motor 35. The slide groove 29 is radially fixed to the rotating disk 32. The groove opening of the slide groove 29 is an isosceles trapezoid, and the top of the slide groove 29 is closed with a hole. The slide rod 75 is slidably installed in the slide groove 29. The outer contour shape of the slide rod 75 is adapted to the shape of the groove opening of the slide groove 29, and a cylindrical through hole is provided in the center of the slide rod 75. The cylindrical through hole has an internal thread in the center, and the screw 76 is rotatably connected to the slide rod 75 through its external thread. The third motor 33 is fixedly mounted on the side of the rotating disk 32, and the output end of the third motor 33 is connected to the screw 76. The fifth battery 30 is connected to the third motor 33. The second controller 31 can wirelessly receive signals and is fixedly mounted on the third motor 33. One end of the second controller 31 is connected to the fifth battery 30, and the other end is connected to the third motor 33. The lower end face of the variable pitch disk 28 is fixedly mounted at the center line of the end face of the slide rod 75. A circular groove is opened on the upper end face of the variable pitch disk 28. A small cylinder is fixedly mounted in the middle of the connecting rod 27 and inserted into the circular groove. The positioning rod 25 is fixedly mounted on the frame 2. The slide rail 26 is fixedly mounted on the end face of the positioning rod 25. One end of the connecting rod 27 can be slidably installed in the groove of the slide rail 26, and the connecting rod 27 passes through the side plate 91. The rake tooth component includes a hollow shell 39, a second positioning shell 85, a telescopic shaft 80, and a fourth controller. 82. A fixed rod 79, telescopic rake teeth 38, fixed rake teeth 37, and a groove block 77 are included. A hollow outer shell 39 is fixedly mounted on the other end of the connecting rod 27. An elongated hole 84 is opened at the center of the bottom of the hollow outer shell 39. A second positioning shell 85 is fixedly mounted on the bottom of the hollow outer shell 39. A thirteenth motor 81 is fixedly mounted inside the second positioning shell 85. The output end of the thirteenth motor 81 is fixedly mounted to one end of the telescopic shaft 80. The other end of the telescopic shaft 80 is fixedly mounted to the middle of the fixed rod 79, and the telescopic shaft 80 is inserted into the elongated hole 84. A fifteenth battery 83 is connected to the thirteenth motor 81. The fourth controller 82 can wirelessly receive signals. The fourth controller 82 is fixedly mounted on the thirteenth motor 81. One end of the fourth controller 82 is connected to the fifteenth battery 83, and the other end is connected to the thirteenth motor 81.The fixed rake teeth 37 are evenly spaced at their top ends and fixed to the front face of the hollow shell 39. The telescopic rake teeth 38 are evenly spaced at their top ends and fixed to the fixed rod 79, with each telescopic rake tooth 38 located between two adjacent fixed rake teeth 37. The telescopic rake teeth 38 are slidably mounted on the front face of the hollow shell 39. Two recessed blocks 77 are fixed to the bottom surface of the hollow shell 39 and are located on both sides of the telescopic shaft 80. The recessed blocks 77 have grooves that conform to the contour and position of the telescopic rake teeth 38, allowing the telescopic rake teeth 38 to slidably mount within the grooves. This allows for automatic adjustment of the reciprocating movement distance and spacing of the rake teeth according to the material falling situation.

[0020] The sorting and re-extraction mechanism includes a sorting device, a third camera 52, a re-extraction device, and a second camera 23. The sorting device includes a screen plate 16, diverting blocks 49, baffles 44, hinges 78, a pull rod 43, a discharge plate 48, a third controller 40, and a first baffle 50. The bottom of the screen plate 16 has four equally spaced cuboid openings. The four baffles 44 are hinged to the four cuboid openings by the hinges 78. The three diverting blocks 49 are equally spaced at the tail of the screen plate 16, and each diverting block 49 is located between two adjacent baffles 44. The pull rod 43 is fixed at the center of the lower end face of the baffle 44. The center of the pull rod 43 has a cylindrical through hole with internal threads. The shaft of the fifth motor 42 has external threads. The pull rod 43 is connected to the first baffle 50 by the threads. The fifth motor 42 is rotatably connected to the shaft of the discharge plate 48, which is parallel to and fixed below the screen plate 16. The fifth motor 42 is fixed on the discharge plate 48, and the seventh battery 41 is connected to the fifth motor 42. The third controller 40 can wirelessly receive signals and is fixed on the fifth motor 42. One end of the third controller 40 is connected to the seventh battery 41, and the other end is connected to the fifth motor 42. The first baffle plate 50 is fixed on both sides of the tail of the screen plate 16, and two third cameras 52 are fixed on the inner side of its top plate. The ninth battery 53 is connected to the third camera 52. The re-extraction device includes a second baffle shell 55, an auger 54, a first positioning shell 47, and a belt device. An isosceles trapezoidal plate is fixed at the bottom of the screen plate 16, and a rectangular plate is fixed at the bottom of the isosceles trapezoidal plate. The first positioning shell 47 is fixed. The sixth motor 46 is fixedly mounted in the first positioning shell 47 on the bottom surface of the discharge plate 48. The output end of the sixth motor 46 is fixedly mounted to the auger shaft. The eighth battery 45 is connected to the sixth motor 46. The auger 54 is inclined and the auger shaft is rotatably mounted on the discharge plate 48 and the rectangular plate. The auger 54 is provided with a second baffle shell 55. The bottom and top ends of the contact surface between the second baffle shell 55 and the first baffle plate 50 are respectively provided with a re-extraction inlet 51 and a discharge outlet 65. The belt device includes a third baffle shell 64, a frame 87, a pneumatic system, a moving shaft assembly, a fixed shaft assembly, and a belt 57. The third baffle shell 64 has a U-shaped slot and is fixed to both sides of the top of the second baffle shell 55. Two pneumatic systems are distributed on the two bottom plates of the third baffle shell 64. The pneumatic system is powered by a seventh motor 57. 6. The system comprises a fifth controller 90, an air pump 58, and an air cylinder 59. A seventh motor 56 is fixedly mounted on the base plate of the third baffle shell 64. A sixteenth battery 89 is connected to the seventh motor 56. The fifth controller 90 can wirelessly receive signals and is fixedly mounted on the seventh motor 56. One end of the fifth controller 90 is connected to the sixteenth battery 89, and the other end is connected to the seventh motor 56. The output end of the seventh motor 56 is fixedly mounted to the input end of the air pump 58. The output end of the air pump 58 is fixedly mounted to one end of the air cylinder 59, and the other end of the air cylinder 59 is fixedly mounted to the bottom rod of the frame 87. The frame 87 is placed on the machine frame 2. The moving shaft assembly includes a first moving shaft 86 and a second moving shaft 88. The first moving shaft 86 is rotatably mounted on the upper left side of the end face of the frame 87. An eighth motor 60 is fixedly mounted on the frame 87.The output end of the eighth motor 60 is fixedly mounted to the first moving shaft 86. The tenth battery 61 is connected to the eighth motor 60. The second moving shaft 88 is rotatably mounted on the lower right side of the end face of the frame 87. The eleventh motor 71 is fixedly mounted on the frame 87, and its output end is fixedly mounted to the second moving shaft 88. The thirteenth battery 70 is connected to the eleventh motor 71. The fixed shaft group includes a first fixed shaft 66, a second fixed shaft 67, and a third fixed shaft 72. The second fixed shaft 67 has the same height as the first moving shaft 86. The third fixed shaft 72 is parallel to the second fixed shaft 67 and located below the second moving shaft 88. The first fixed shaft 66 and the third fixed shaft 72 have the same height. Both motors 2 and 3 are rotatably mounted on the third baffle shell 64. The belt 57 sequentially passes over the second fixed shaft 67, the first moving shaft 86, the second moving shaft 88, the first fixed shaft 66, and the third fixed shaft 72. The output ends of the ninth motor 63, the tenth motor 68, and the twelfth motor 74 are respectively fixed to the first fixed shaft 66, the second fixed shaft 67, and the third fixed shaft 72. The eleventh battery 62 is connected to the ninth motor 63, the twelfth battery 69 is connected to the tenth motor 68, and the fourteenth battery 73 is connected to the twelfth motor 74. The second camera 23 is fixedly mounted on the frame 2 above the two threshing drums, and the fourth battery 24 is connected to the second camera 23. Thus, automatic sorting and feeding of materials to be threshed can be achieved based on the actual threshing conditions.

[0021] During operation, material is fed into the feed hopper 1. The first motor 6 drives the first gear 11 to rotate, which in turn drives the second gear 12. The second motor 20 drives the third gear 18 to rotate, which in turn drives the fourth gear 19. Since the second gear 12 and the fourth gear 19 rotate at the same speed and in the same direction, the two threshing drums rotate in opposite directions. The first camera 7 observes the material condition after threshing and wirelessly feeds back the observed images to the first controller 5. When there is a large amount of crushed material, the first controller 5 first increases the speed of the first motor 6 and then decreases it to match the speed of the second motor 20. This causes a corresponding change in the speed of the first gear 11 driving the second gear 12, which in turn drives the ball bearings 1. 3. The movement speed changes accordingly, increasing the inclination of the variable diameter rod 14. When the material output is low, the first controller 5 first reduces the speed of the first motor 6 and then increases it to match the speed of the second motor 20. This causes the first gear 11 to drive the second gear 12 to change speed, which in turn causes the ball bearing 13 to change speed, reducing the inclination of the variable diameter rod 14. This allows the threshing drum to rotate while automatically adjusting the threshing gap according to the actual material conditions. After threshing, the material falls onto the screen plate 16. The fourth motor 35 drives the rotating disk 32 to rotate, causing the chute 29 to rotate, which in turn drives the slide rod 75 to rotate, thus rotating the variable pitch disk 28. This, in turn, causes the material to pass through the variable pitch disk 28. The small cylinder inside 8 drives the connecting rod 27 to reciprocate, which in turn drives the rake tooth component to reciprocate. This allows the rake teeth to reciprocate. The first camera 7 observes the material distribution on the screen plate and wirelessly feeds back the observed image to the second controller 31 and the fourth controller 82. When the material accumulation is low, the second controller 31 controls the third motor 33 to reverse, which in turn drives the screw 76 to reverse. The reverse rotation of the screw 76 drives the variable-pitch disc 28 to move backward, gradually reducing the eccentricity of the variable-pitch disc 28 and thus decreasing the reciprocating distance of the rake tooth component. Simultaneously, the fourth controller 82 drives the thirteenth motor 81 to rotate forward, which in turn drives the telescopic shaft 80 to rotate forward, causing the fixed... Rod 79 drives telescopic rake teeth 38 to retract into hollow shell 39 along groove block 77. When there is a lot of material accumulation, second controller 31 controls third motor 33 to rotate forward. Third motor 33 drives screw 76 to rotate forward. Screw 76 rotates forward and drives variable pitch disk 28 to move forward. The eccentricity of variable pitch disk 28 gradually increases, which increases the reciprocating distance of rake teeth. At the same time, fourth controller 82 drives thirteenth motor 81 to reverse. Thirteenth motor 81 reverses and drives telescopic shaft 80 to reverse. Telescopic shaft 80 reverses and causes fixed rod 79 to drive telescopic rake teeth 38 to extend out of hollow shell 39 along groove block 77. Thus, the reciprocating distance and spacing of rake teeth can be automatically adjusted according to the material falling situation, so that the material is evenly distributed on screen plate 16.After screening, the material flows along the diversion block 49 to the baffle 44. The third camera 52 observes the threshing process and wirelessly feeds back the observed images to the third controller 40. When the threshing rate is low, the third controller 40 controls the fifth motor 42 to rotate forward, causing the baffle 44 to rotate via the hinge 78 and raising the baffle 44. When the corn threshing rate is high, the third controller 40 controls the fifth motor 42 to rotate in reverse, lowering the baffle 44, thereby separating the crop with a higher threshing rate. The threshing crop flows sequentially through the trapezoidal plate and the rectangular plate, and enters the auger 54 through the re-threshing inlet 51. The sixth motor 46 drives the auger 54 to rotate, and the threshing crop with a higher threshing rate is conveyed to the belt conveyor through the auger 54. The tenth motor 68, the eighth motor 60, the eleventh motor 71, the ninth motor 63, and the twelfth motor 74 drive the second fixed shaft 67, the first moving shaft 86, the second moving shaft 88, the first fixed shaft 66, and the third fixed shaft 72 to rotate, thereby driving the belt 57 transmission. The second camera 23 observes the material distribution between the threshing drums and wirelessly feeds the observed images back to the fifth controller 90. The fifth controller 90 controls the speed of the seventh motor 56 to regulate the output pressure of the air pump 58, which in turn controls the extension and retraction of the cylinder 59. This allows control of the position of the frame 87 to change the position of the material to be threshed entering the feeding port 3, thus achieving control over the feeding position of materials with a high threshing rate.

[0022] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-quality sorting and double-threshing thresher with adjustable threshing gap, characterized in that: The device includes a frame (2), a threshing mechanism, a screening mechanism, and a sorting and re-threshing mechanism. The threshing mechanism is installed in the upper part of the frame (2), the screening mechanism is installed on the left side of the lower part, and the sorting and re-threshing mechanism is installed on the right side. The threshing mechanism includes a feeding hopper (1), a threshing drum, and a first camera (7). The feeding hopper (1) is fixedly mounted on the upper end of the frame (2). The threshing mechanism has two parallel and oppositely arranged threshing drums. The threshing drum includes a variable diameter shaft (22), a gear set, a first controller (5), a variable diameter rod, and a rigid-flexible combined threshing component. The variable diameter shaft (22) is fixedly mounted on the frame (2). The gear set includes a first gear (11), a second gear (12), and a third gear (13). Gears (18) and (19), and second and fourth gears (12) are rotatably mounted on both ends of the variable diameter shaft (22). First gear (11) and third gear (18) mesh with second gear (12) and fourth gear (19) respectively. The output end of the first motor (6) is fixedly mounted to the gear shaft of the first gear (11). The first battery (4) is connected to the first motor (6). The output end of the second motor (20) is fixedly mounted to the gear shaft of the third gear (18). The third battery (21) is connected to the second motor (20). The first controller (5) can wirelessly receive signals and is fixedly mounted on the first motor (6). The first controller (5) is connected to the first battery (4) at one end and to the first motor (6) at the other end. The variable diameter rod includes a ball (13), a variable diameter rod (14), and a variable diameter ball (15). The ball (13) is fixedly mounted on one end of the variable diameter rod (14). The second gear (12) has spherical grooves at equal angles around its base circle edge. The ball (13) can be rolled in the spherical grooves. The variable diameter ball (15) is fixedly mounted on the other end of the variable diameter rod (14). The fourth gear (19) has cylindrical through holes at equal angles around its base circle edge, the same number as the number of spherical grooves. The other end of the variable diameter rod (14) is inserted into the cylindrical through hole corresponding to the spherical groove. The rigid-flexible combined threshing component The device includes threshing teeth (9) and threshing blade assembly. The structure of the threshing teeth (9) is a triangular ring. The threshing teeth (9) are fixedly mounted on the variable diameter rod (14) at intervals along the circumference of the second gear (12). The threshing teeth (9) are equidistantly arranged on the variable diameter rod (14) in the axial direction. The threshing teeth (9) are fixedly mounted perpendicular to the variable diameter rod (14). The threshing blade assembly is formed by a circumferential array of threshing blades (10) and is hollow. The threshing blade assembly is equidistantly distributed around the annular contour of the threshing teeth (9). The first camera (7) is fixedly mounted on the frame (2) above the screen plate (16). The second battery (8) is connected to the first camera (7). The first camera (7) can transmit the status of the material after threshing to the first controller (5).

2. The high-quality sorting and double-threshing thresher with adjustable threshing gap according to claim 1, characterized in that: The screening mechanism includes a screen plate (16), side plates (91), a rake tooth pitch changing device, and a first camera (7). The screen plate (16) is fixedly mounted in the lower part of the frame (2) and is inclined. The upper part is provided with screen holes (17) arranged at equal intervals. The two side plates (91) are fixedly mounted on the frame (2) on both sides of the screen plate (16). The screening mechanism is provided with four rake tooth pitch changing devices symmetrically distributed about the center of the upper part of the screen plate (16). Each rake tooth pitch changing device is arranged parallel to the length direction of the screen plate (16). The rake tooth pitch changing device includes a pitch changing device and a rake tooth device. The pitch changing device includes a positioning block (34), a rotating disk (32), a slide groove (29), a slide rod (75), a screw (76), a second controller (31), a pitch changing disk (28), and a connecting rod. (27), positioning rod (25) and slide rail (26), positioning block (34) is fixed on side plate (91) and has a through hole in its center, the central axis of rotating disk (32) is rotatably installed in the through hole, the fourth motor (35) is fixed on positioning block (34), the output end of the fourth motor (35) is fixed to the central axis of rotating disk (32), the sixth battery (36) is connected to the fourth motor (35), the slide groove (29) is radially fixed to rotating disk (32), the groove opening of the slide groove (29) is an isosceles trapezoid, and the top of the slide groove (29) is closed with a hole, the slide rod (75) can be slidably installed in the slide groove (29), the outer contour shape of the slide rod (75) is adapted to the shape of the groove opening of the slide groove (29), and a cylindrical through hole is opened at the center of the slide rod (75). The cylindrical through hole has an internal thread at its center. The screw (76) is rotatably connected to the slide rod (75) through its external thread. The third motor (33) is fixedly mounted on the side of the rotating disk (32). The output end of the third motor (33) is fixedly mounted to the screw (76). The fifth battery (30) is connected to the third motor (33). The second controller (31) can wirelessly receive signals. The second controller (31) is fixedly mounted on the third motor (33). One end of the second controller (31) is connected to the fifth battery (30), and the other end is connected to the third motor (33). The lower end face of the variable pitch disk (28) is fixedly mounted at the center line of the end face of the slide rod (75). A circular groove is opened on the upper end face of the variable pitch disk (28). A small cylinder is fixedly mounted in the middle of the connecting rod (27). The small cylinder is inserted into the circular groove. The positioning rod (25) is fixedly mounted on the frame (2), the slide rail (26) is fixedly mounted on the end face of the positioning rod (25), one end of the connecting rod (27) is slidably mounted in the groove of the slide rail (26), and the connecting rod (27) passes through the side plate (91). The rake tooth device includes a hollow shell (39), a second positioning shell (85), a telescopic shaft (80), a fourth controller (82), a fixed rod (79), telescopic rake teeth (38), fixed rake teeth (37) and a groove block (77). The hollow shell (39) is fixedly mounted on the other end of the connecting rod (27). A long hole (84) is opened at the center of the bottom of the hollow shell (39). The second positioning shell (85) is fixedly mounted on the bottom of the hollow shell (39). The thirteenth motor (81) is fixedly mounted in the second positioning shell (85).The output end of the thirteenth motor (81) is fixed to one end of the telescopic shaft (80), and the other end of the telescopic shaft (80) is fixed to the middle of the fixed rod (79). The telescopic shaft (80) is inserted into the elongated hole (84). The fifteenth battery (83) is connected to the thirteenth motor (81). The fourth controller (82) can wirelessly receive signals. The fourth controller (82) is fixed to the thirteenth motor (81). One end of the fourth controller (82) is connected to the fifteenth battery (83), and the other end is connected to the thirteenth motor (81). The top of the fixed rake teeth (37) is fixed at equal intervals in the hollow. On the front face of the outer shell (39), the tops of the telescopic rake teeth (38) are fixedly mounted on the fixed rod (79) at equal intervals, and each telescopic rake tooth (38) is located between two adjacent fixed rake teeth (37). The telescopic rake teeth (38) are slidably mounted on the front face of the hollow outer shell (39). Two grooved blocks (77) are fixedly mounted on the bottom surface of the hollow outer shell (39), and the two grooved blocks (77) are located on both sides of the telescopic shaft (80). The grooved blocks (77) have grooves that are adapted to the contour and position of the telescopic rake teeth (38), and the telescopic rake teeth (38) are slidably mounted in the grooves.

3. The high-quality sorting and double-threshing thresher with adjustable threshing gap according to claim 1, characterized in that: The sorting and re-extraction mechanism includes a sorting device, a third camera (52), a re-extraction device, and a second camera (23). The sorting device includes a screen plate (16), diverting blocks (49), baffles (44), hinges (78), a pull rod (43), a discharge plate (48), a third controller (40), and a first baffle (50). The bottom of the screen plate (16) is provided with four equally spaced cuboid openings. The four baffles (44) are hinged in the four cuboid openings by the hinges (78). The three diverting blocks (49) are equally spaced at the tail of the screen plate (16), and each diverting block (49) is located between two adjacent baffles (44). The pull rod (43) is fixed at the center of the lower end face of the baffle (44), and a cylinder is provided at the center of the pull rod (43). A cylindrical through hole with an internal thread is provided. The shaft of the fifth motor (42) has an external thread. The pull rod (43) is rotatably connected to the shaft of the fifth motor (42) through the thread. The discharge plate (48) is fixedly mounted parallel to the bottom of the screen plate (16). The fifth motor (42) is fixedly mounted on the discharge plate (48). The seventh battery (41) is connected to the fifth motor (42). The third controller (40) can wirelessly receive signals. The third controller (40) is fixedly mounted on the fifth motor (42). One end of the third controller (40) is connected to the seventh battery (41), and the other end is connected to the fifth motor (42). The first baffle plate (50) is fixedly mounted on both sides of the tail of the screen plate (16). Two third cameras (52) are fixedly mounted on the inner side of its top plate. The ninth battery (53) is connected to the third camera. Image (52); The re-extraction device includes a second baffle shell (55), an auger (54), a first positioning shell (47) and a belt device. An isosceles trapezoidal plate is fixedly installed at the bottom of the screen plate (16), and a rectangular plate is fixedly installed at the bottom of the isosceles trapezoidal plate. The first positioning shell (47) is fixedly installed on the bottom surface of the tail of the discharge plate (48). The sixth motor (46) is fixedly installed inside the first positioning shell (47). The output end of the sixth motor (46) is fixedly installed with the auger shaft. The eighth battery (45) is connected to the sixth motor (46). The auger (54) is inclined. The auger shaft is rotatably installed on the discharge plate (48) and the rectangular plate. The second baffle shell (55) is provided outside the auger (54). The bottom and top of the contact surface between the second baffle shell (55) and the first baffle plate (50) are connected. The end is provided with a re-extraction inlet (51) and a discharge outlet (65). The belt device includes a third baffle shell (64), a frame (87), a pneumatic system, a moving shaft assembly, a fixed shaft assembly, and a belt (57). The third baffle shell (64) has a U-shaped slot and is fixed to both sides of the top of the second baffle shell (55). The two pneumatic systems are distributed on the two bottom plates of the third baffle shell (64). The pneumatic system consists of a seventh motor (56), a fifth controller (90), an air pump (58), and a cylinder (59). The seventh motor (56) is fixed to the bottom plate of the third baffle shell (64). The sixteenth battery (89) is connected to the seventh motor (56). The fifth controller (90) can wirelessly receive signals and is fixed to the seventh motor (56).The fifth controller (90) is connected to the sixteenth battery (89) at one end and to the seventh motor (56) at the other end. The output end of the seventh motor (56) is fixed to the input end of the air pump (58). The output end of the air pump (58) is fixed to one end of the cylinder (59). The other end of the cylinder (59) is fixed to the bottom rod of the frame (87). The frame (87) is placed on the frame (2). The moving shaft group includes the first moving shaft (86) and the second moving shaft (88). The first moving shaft (86) is rotatably mounted on the upper left side of the end face of the frame (87). The eighth motor (60) is fixed. Mounted on frame (87), the output end of the eighth motor (60) is fixedly mounted to the first moving shaft (86), the tenth battery (61) is connected to the eighth motor (60), the second moving shaft (88) is rotatably mounted on the lower right side of the end face of frame (87), the eleventh motor (71) is fixedly mounted on frame (87), the output end of the eleventh motor (71) is fixedly mounted to the second moving shaft (88), the thirteenth battery (70) is connected to the eleventh motor (71), the fixed shaft group includes the first fixed shaft (66), the second fixed shaft (67) and the third fixed shaft (72), the tenth battery (61) is connected to the eighth motor (60), the second moving shaft (88) is rotatably mounted to ... to the frame (87), the eleventh motor (71) is fixedly mounted to the first moving shaft (86), the tenth battery (61) is connected to the eighth motor (60), the second moving shaft (88) is rotatably mounted to the lower right side of the end face of frame (87), the eleventh motor (71) is fixedly mounted to the frame (87), the eleventh motor (71) is fixedly mounted to the first moving shaft (86), the The second fixed shaft (67) is at the same height as the first moving shaft (86). The third fixed shaft (72) is parallel to the second fixed shaft (67) and located below the second moving shaft (88). The first fixed shaft (66) and the third fixed shaft (72) are at the same height. The first fixed shaft (66), the second fixed shaft (67), and the third fixed shaft (72) can all be rotatably mounted on the third baffle shell (64). The belt (57) passes sequentially around the second fixed shaft (67), the first moving shaft (86), the second moving shaft (88), and the first fixed shaft (66). The outputs of the third fixed shaft (72), the ninth motor (63), the tenth motor (68), and the twelfth motor (74) are respectively fixed to the first fixed shaft (66), the second fixed shaft (67), and the third fixed shaft (72). The eleventh battery (62) is connected to the ninth motor (63), the twelfth battery (69) is connected to the tenth motor (68), and the fourteenth battery (73) is connected to the twelfth motor (74). The second camera (23) is fixedly mounted on the frame (2) above the two threshing drums, and the fourth battery (24) is connected to the second camera (23).

Images