Corn threshing complete assembly and process

Abstract

The application relates to a corn threshing complete assembly and process, which comprises the following steps: S1, corn cobs are transmitted through a corn feeding device; S2, the corn cobs are dropped through a combing dropping device; and S3, the dropped corn cobs are clamped and threshed through a threshing device. In the dropping conveying step in S2, firstly, the corn feeding device transmits the corn cobs to the top cone disc; then, the center counterweight rod goes down under the action of gravity of the center counterweight rod and the elastic force of the reset spring part; and then, the center counterweight rod goes up under the action of the pulling rope tension, and overcomes the gravity of the center counterweight rod and the elastic force of the reset spring part; the application has the advantages of reasonable design, compact structure and convenient use.

Description

Technical Field

[0001] This invention relates to components and processes for corn threshing. Background Technology

[0002] Currently, most corn threshing equipment uses a method of welding cylindrical threshing teeth onto the threshing roller mechanism for threshing. The shaft operates at a high speed, which can damage the corn and affect the survival rate of the corn seeds.

[0003] CN201520881287.3 A corn seed thresher has a low degree of automation and cannot separate seeds efficiently. CN202022870654.3 A single-ear corn seed thresher has a complex structure and low threshing efficiency.

[0004] Achieving high-efficiency, low-damage, and fully automated threshing has become an urgent technical problem to be solved. Summary of the Invention

[0005] As this invention is jointly developed by multiple entities, the technical problem it aims to solve is, in general, to provide a corn threshing assembly and process. Its parent application, an automatic corn threshing device and process, was filed on February 22, 2022; application number CN2022101642698.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0007] An automated corn threshing process comprises the following steps;

[0008] S1, conveying corn cobs via a corn feeding device;

[0009] S2, the corn cobs fall through the combing and dropping device.

[0010] S3 uses a threshing device to clamp the falling corn cobs and thresh them.

[0011] As a further improvement to the above technical solution:

[0012] In S2, the falling conveying step is performed. First, the corn feeding device conveys corn cobs to the top conical plate. Then, under the weight of the central counterweight and the elastic force of the return spring, the central counterweight moves downward. Next, under the tension of the pulling rope, the central counterweight overcomes its own weight and the elastic force of the return spring, and moves upward. Then, as the central counterweight moves up and down, it pulls the telescopic sliding arm to extend and retract, swinging up and down. At the same time, the movable seat at the base of the telescopic sliding arm moves in each side busbar guide rail, causing the corn cobs on the crossarms to move and intermittently contact the corresponding inclined vertical plate, thereby achieving orientation adjustment. One by one, the corn cobs fall longitudinally through the gap between adjacent telescopic sliding arms into the funnel falling channel.

[0013] In S3,

[0014] With the help of the following actions, the L-shaped swing arm rotates and drives the variable center rod to swing laterally left and right through the linkage drive sliding sleeve, and the lower driven sleeve drives the vertical long arm of the radial guide T-shaped seat to move; then, the radial guide T-shaped seat drives the first linkage horizontal arm and the second linkage horizontal arm to move left and right through the transverse reciprocating double arms, so that the semi-arc-shaped card seats of the first linkage horizontal arm and the second linkage horizontal arm alternately reciprocate between the corresponding ear-dropping station and threshing station.

[0015] S3.1, at the corn shedding station, the semi-circular card holder receives the falling corn cob and is held by the elastic plate claw. The perforated protruding seat enters the process through hole to remove the debris attached to the side wall of the semi-circular card holder.

[0016] S3.2, at the threshing station, the corn cobs are dehulled and threshed. First, when the descending guide sleeve reaches the threshing station, the extended stop arm blocks the falling opening of the dehulling station. Then, the semi-arc-shaped chuck and the internal contact side teeth make dynamic friction contact with the outer coating of the corn cob. The rotating gear ring rotates, and the drill bit base is used to descend and drill the corn cob to thresh it through the descending guide sleeve. The spiral drill bit group first drills the core of the cob. Second, the dehulling roller continues to dehull, and the elastic steel ball elastically contacts the corn cob coating and achieves lateral elastic expansion and contraction.

[0017] S3.3, the rotating gear ring disk drives the actuating side arm, which in turn moves the grains down onto the fixed bottom storage channel, allowing the threshed grains and impurities to pass through the falling grain channel and enter the falling funnel for downward output to the next process.

[0018] The extended upper arm of the central pole achieves the linkage between steps S2 and S3 by pulling the rope.

[0019] A corn threshing kit includes a combing and dropping device;

[0020] The combing and falling device includes a top conical disk, and several side busbar guide rails are distributed on the inner wall of the top conical disk;

[0021] Each side busbar guide rail has a lower movable seat with a telescopic sliding arm, and a central counterweight is set above the center of the top cone plate. The central counterweight is hinged to the end of the telescopic sliding arm.

[0022] A return spring is fitted on the telescopic sliding arm, a fixed sleeve is connected to the upper end of the return spring, and a guide pulley is provided above the central counterweight rod.

[0023] A pull rope is threaded through the guide pulley, and one end of the pull rope is connected to the central counterweight rod.

[0024] An inclined vertical plate with a height higher than the side busbar guide rail is provided on the inner wall of the top cone plate;

[0025] The corn cobs fall longitudinally through the gap between adjacent telescopic sliding arms into the funnel's drop channel.

[0026] A threshing device; the threshing device includes a linkage threshing mechanism disposed on a support center frame, and a rotating external storage disk assembly sleeved on the linkage threshing mechanism disposed on the support center frame.

[0027] The linked threshing mechanism has a threshing station near the center and a threshing station near the rotating external storage disk assembly;

[0028] The corn cobs are received at the tasseling station and then threshed at the threshing station.

[0029] The linkage threshing mechanism includes a mechanism support seat mounted on a support center frame; an L-shaped swing arm that rotates in a vertical plane mounted on the mechanism support seat; and a hinged root swing seat located above the L-shaped swing arm mounted on the mechanism support seat.

[0030] A linkage drive sleeve is hinged at the end of the L-shaped swing arm. A variable center rod slides in the linkage drive sleeve. A lower driven sleeve is provided at the lower end of the variable center rod. A vertical long arm of a radial guide T-shaped seat moves in the lower driven sleeve. The middle part of the variable center rod is provided in the hinge root swing seat.

[0031] A transverse reciprocating double arm is connected to the radial guide T-shaped seat, and a first linkage cross arm and a second linkage cross arm with the same structure are symmetrically arranged on both sides of the transverse reciprocating double arm.

[0032] Support guide frames are provided on both sides of the mechanism support base; the first linkage cross arm and the second linkage cross arm extend and retract horizontally in their respective support guide frames.

[0033] A semi-circular bracket is provided at the end of the first and second linkage cross arms respectively; an elastic steel ball is provided on the end face of the semi-circular bracket, a falling moving guide sleeve is provided above the semi-circular bracket, and an extension stop arm is provided behind the falling moving guide sleeve.

[0034] The semi-circular clamp moves back and forth between the ear-dropping station and the threshing station;

[0035] At the tasseling station, a funnel-shaped drop channel is provided for dropping corn cobs.

[0036] A drill bit base is installed above the threshing station. The drill bit base includes a core-removing cutter roller and a spiral drill bit assembly arranged above and below.

[0037] When the falling guide sleeve reaches the threshing station, the extended stop arm blocks the falling opening of the threshing station, and the drill bit base is used to descend and drill and thresh the corn cob through the falling guide sleeve.

[0038] A lower semi-circular cone is provided at the bottom of the semi-circular card holder, and an elastic plate gripper with an opening is provided on the side wall of the semi-circular card holder to support the corn cob falling from above.

[0039] A vented spike seat is provided on the supporting guide frame;

[0040] The semi-circular card holder has process through holes corresponding to the perforated spikes, used to remove attached debris.

[0041] As a further improvement to the above technical solution:

[0042] The rotating external storage disk assembly includes a rotating gear ring disk body that is rotatably set; the rotating gear ring disk body is meshed with a drive gear set, and internal contact side teeth are distributed on the inner cavity side wall of the rotating gear ring disk body. When the semi-arc-shaped chuck of the linkage threshing mechanism reaches the threshing station, the outer wall of the corn cob comes into dynamic frictional contact with the internal contact side teeth.

[0043] A fixed bottom storage channel is provided at the lower part of the support center frame at the center of the rotating gear ring disc. The fixed bottom storage channel is used to carry the falling corn cobs for threshing and debris.

[0044] A toggle arm is provided on the lower part of the inner side wall of the rotating gear ring disk, a falling particle channel is provided on the fixed bottom storage channel, and a falling funnel is provided below the falling particle channel.

[0045] As the rotating gear ring rotates, the side arm moves to thresh the corn and remove debris that has fallen onto the falling particle channel, which then enters the falling funnel for output to the next process.

[0046] An extended upper arm for the center rod is provided at the upper end of the variable center rod, and an upper traction seat with a traction rope is provided at the top of the extended upper arm for the center rod.

[0047] An automatic corn threshing device includes a threshing unit;

[0048] A threshing device is used to clamp and thresh the falling corn cobs.

[0049] This invention uses a corn feeding device to feed corn cobs, a combing and falling device with self-adjusting and corrective functions to prevent jamming, a threshing device to thresh two corn cobs alternately for high efficiency, a supporting central frame for support, and a linkage threshing mechanism for linkage control to achieve the ear-dropping station and the position change of the threshing station. A rotating outer storage disk assembly serves as a rotating carrier, providing cleaning, friction, and load-bearing functions. An L-shaped swing arm provides drive, and through linkage drive sleeves, the differential speed of the changing central rod swings. The design is ingenious. The lower driven sleeve drives the radial guide T-shaped seat to swing, and the hinged root swing seat provides support. The extended upper arm of the central rod achieves linkage control, and the upper traction seat achieves linkage control through a traction rope. The transverse reciprocating double arms, namely the first and second linkage arms, achieve linkage. Preferably, they briefly stop at each station. A supporting guide frame provides support, a perforated spike seat achieves automatic impurity removal, a semi-circular clamp seat achieves loading and clamping, process through holes facilitate spikes, and the lower semi-circular cone provides bottom support and elasticity. The gripper provides flexible holding, while the elastic steel ball provides elastic support and friction, accommodating differences in corn cob size. A descending guide sleeve facilitates the downward output, an extended stop arm provides shielding to prevent corn cobs from falling, and a funnel-shaped descending channel provides output. A top conical disc increases the load-bearing area and facilitates the installation of side busbar guides, preventing the telescopic sliding arm from swaying and jamming, and increasing its travel range. A central counterweight connects support and guidance, a fixed sleeve provides fixation, a reset spring provides automatic reset, and a guide pulley provides directional guidance. An inclined vertical plate ensures the corn is subjected to oblique friction, preventing jamming of the horizontal bar. As an auxiliary component, a robotic arm or manual intervention can be used to adjust the direction of jammed corn. A spiral drill bit assembly provides end-positioning drilling guidance, a core-removing roller removes the inner core, and a drive gear set drives a rotating gear ring disc. Internal contact teeth increase friction and reduce slippage. A side arm is moved to fix the bottom storage channel and the falling particle channel. The falling funnel facilitates the output of the coating, broken cores, and particles.

[0050] This invention is reasonably designed, low in cost, sturdy and durable, safe and reliable, simple to operate, time-saving and labor-saving, cost-saving, compact in structure and easy to use. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the overall threshing structure of the present invention.

[0052] Figure 2 This is a schematic diagram of the main threshing structure of the present invention.

[0053] Figure 3 This is a schematic diagram of the structure of the core threshing component of the present invention.

[0054] Figure 4 This is a schematic diagram of the threshing linkage mechanism of the present invention.

[0055] Figure 5 This is a schematic diagram of the structure of the tassel-feeding part of the present invention.

[0056] The components include: 1. Corn feeding device; 2. Combing and falling device; 3. Threshing device; 4. Support center frame; 5. Linked threshing mechanism; 6. Rotating outer storage tray assembly; 7. Ear dropping station; 8. Threshing station; 9. L-shaped swing arm; 10. Linked drive sleeve; 11. Variable center rod; 12. Lower driven sleeve; 13. Radial guide T-shaped seat; 14. Hinge root swing seat; 15. Extended upper arm of center rod; 16. Upper traction seat; 17. Pulling rope; 18. Lateral reciprocating double arm; 19. First linked horizontal arm; 20. Second linked horizontal arm; 21. Support guide frame; 22. Perforated spike seat; 23. Semi-arc type clamping seat; 24. Process through hole; 25. Lower semi-circular cone section; 26. Elastic sheet gripper; 27. Elastic steel ball; 28. Falling guide sleeve; 29. ​​Extended stop arm; 30. Funnel falling channel; 31. Top conical plate; 32. Side busbar guide rail; 33. Telescopic sliding arm; 34. Central counterweight rod; 35. Fixed sleeve; 36. Return spring section; 37. Guide pulley; 38. Inclined vertical plate; 39. Spiral drill bit assembly; 40. Core removing cutter roller; 41. Drive gear assembly; 42. Rotating gear ring disc; 43. Internal contact side teeth; 44. Actuating side arm; 45. Fixed bottom storage channel; 46. Falling particle channel; 47. Falling funnel. Detailed Implementation

[0057] like Figure 1-5 As shown in Example 1, the components of the automatic corn threshing device in this embodiment include a combing and dropping device 2 for dropping corn cobs in an upright position through a funnel dropping channel 30; thereby enabling the corn to fall one by one for subsequent threshing.

[0058] A top cone disk 31 is provided above the funnel falling channel 30, and several side busbar guide rails 32 are distributed on the inner side wall of the top cone disk 31.

[0059] Each side busbar guide rail 32 has a lower movable seat for a telescopic sliding arm 33. A central counterweight rod 34 is provided above the center of the top cone plate 31. The central counterweight rod 34 is hinged to the end of the telescopic sliding arm 33. A return spring part 36 is sleeved on the telescopic sliding arm 33. A fixed sleeve 35 is connected to the upper end of the return spring part 36. A guide pulley 37 is provided above the central counterweight rod 34.

[0060] A pulley 17 is threaded through the guide pulley 37, with its lower end connected to a central counterweight 34. An inclined vertical plate 38, higher than the side guide rail 32, is installed on the inner wall of the top conical disc 31. The corn cob falls longitudinally through the gap between adjacent telescopic sliding arms 33 into the funnel's falling channel 30. This increases the stroke, allowing for better orientation of the corn cob and preventing jamming. To emphasize the core components, this invention highlights certain key parts while omitting conventional components.

[0061] As shown in Figures 1-5, in one embodiment, the automatic corn threshing device assembly of this embodiment includes a threshing device 3 with a supporting central frame 4; a linkage threshing mechanism 5 is provided on the supporting central frame 4, and a rotating outer storage disk assembly 6 is provided on the supporting central frame 4 and fitted onto the linkage threshing mechanism 5; for practical use, there is also an inner shield to prevent debris from entering the center, eliminating the need for accessories such as a vacuum cleaner and a protective cover.

[0062] The linkage threshing mechanism 5 has a threshing station 7 near the center and a threshing station 8 near the rotating external storage disk assembly 6; thus completing the corresponding work with clear actions.

[0063] At the tasseling station 7, the falling corn cobs are received, and at the threshing station 8, the corn cobs are dehulled and threshed.

[0064] As an example, the linkage threshing mechanism 5 includes a mechanism support seat disposed on the support center frame 4; an L-shaped swing arm 9 that rotates in a vertical plane is disposed on the mechanism support seat; and a hinged root swing seat 14 located above the L-shaped swing arm 9 is disposed on the mechanism support seat.

[0065] A linkage drive sleeve 10 is hinged at the end of the L-shaped swing arm 9. A variable center rod 11 slides in the linkage drive sleeve 10. A lower driven sleeve 12 is provided at the lower end of the variable center rod 11. A vertical long arm of a radial guide T-shaped seat 13 moves in the lower driven sleeve 12. The middle part of the variable center rod 11 is provided in the hinge root swing seat 14.

[0066] A transverse reciprocating double arm 18 is connected to the radial guide T-shaped seat 13, and a first linkage cross arm 19 and a second linkage cross arm 20 with the same structure are symmetrically arranged on both sides of the transverse reciprocating double arm 18.

[0067] Support guide frames 21 are provided on both sides of the mechanism support base; the first linkage cross arm 19 and the second linkage cross arm 20 extend and retract horizontally in the corresponding support guide frames 21 respectively;

[0068] At the ends of the first linkage cross arm 19 and the second linkage cross arm 20, there are semi-arc-shaped brackets 23 respectively; elastic steel balls 27 are provided on the end face of the semi-arc-shaped brackets 23, a falling moving guide sleeve 28 is provided above the semi-arc-shaped brackets 23, and an extension stop arm 29 is provided on the rear side of the falling moving guide sleeve 28.

[0069] The semi-circular mounting bracket 23 reciprocates between the ear-dropping station 7 and the threshing station 8;

[0070] At the ear-dropping station 7, a funnel-shaped drop channel 30 is provided for dropping corn cobs;

[0071] A drill bit base is provided above the threshing station 8. The drill bit base includes a core-removing cutter roller 40 and a spiral drill bit assembly 39 arranged above and below.

[0072] When the falling guide sleeve 28 reaches the threshing station 8, the extended stop arm 29 blocks the falling opening of the drooping station 7, and the drill bit base is used to drill and thresh the corn cob by descending through the falling guide sleeve 28.

[0073] A lower semi-circular cone portion 25 is provided at the lower part of the semi-circular card holder 23, and an elastic plate gripper 26 with an opening is provided on the side wall of the semi-circular card holder 23 for bearing corn cobs falling from above; thus accommodating corn cobs of different sizes.

[0074] A vented spike seat 22 is provided on the support guide frame 21;

[0075] The semi-circular mounting base 23 has process through holes 24 corresponding to the perforated spiked seat 22, used to remove attached debris. This invention achieves linkage control through a linkage mechanism, alternately performing the falling corn cobs and threshing actions.

[0076] As an example, the rotating outer storage disk assembly 6 includes a rotating gear ring disk body 42 that is rotatably disposed; the rotating gear ring disk body 42 is meshed with a drive gear set 41, and internal contact side teeth 43 are distributed on the inner cavity side wall of the rotating gear ring disk body 42. When the semi-arc-shaped card seat 23 of the linkage threshing mechanism 5 reaches the threshing station 8, the outer wall of the corn cob comes into dynamic frictional contact with the internal contact side teeth 43.

[0077] A fixed bottom storage channel 45 is provided at the lower part of the support center frame 4 at the center of the rotating gear ring disc 42. The fixed bottom storage channel 45 is used to carry the falling corn cobs for threshing and debris.

[0078] A toggle arm 44 is provided on the lower part of the inner wall of the rotating gear ring disc 42, and a falling particle channel 46 is provided on the fixed bottom storage channel 45. A falling particle funnel 47 is provided below the falling particle channel 46. When the rotating gear ring disc 42 rotates, the toggle arm 44 causes the corn kernels and debris falling on the falling particle channel 46 to fall into the falling particle funnel 47 for output to the next process. It can achieve functions such as shielding, cleaning and collecting, rubbing the corn husk to avoid damaging the kernels, and clamping.

[0079] An extended upper arm 15 is provided at the upper end of the variable center rod 11, and an upper traction seat 16 with a traction rope 17 is provided at the top of the extended upper arm 15. This enables linkage control.

[0080] As an example, the automatic corn threshing device and process of this embodiment includes the following components;

[0081] The corn feeding device 1 uses a mesh belt to convey corn cobs;

[0082] The combing and dropping device 2 is located at the output end of the corn feeding device 1 and is used to drop and output corn cobs one by one; the threshing device 3 is located below the combing and dropping device 2 and clamps the falling corn cobs to perform threshing operations.

[0083] As an example, the automatic corn threshing process of this embodiment performs the following steps;

[0084] S1, corn cobs are conveyed via corn feeding device 1;

[0085] S2, the corn cobs fall through the combing and dropping device 2.

[0086] S3 uses the threshing device 3 to clamp the falling corn cobs and perform threshing operations.

[0087] In S2, the falling conveying step is performed. First, the corn feeding device 1 conveys corn cobs to the top cone plate 31. Then, under the gravity of the central counterweight rod 34 and the elastic force of the return spring 36, the central counterweight rod 34 moves downward. Subsequently, under the pulling force of the pulling rope 17, the central counterweight rod 34 overcomes its own gravity and the elastic force of the return spring 36, and moves upward. Next, as the central counterweight rod 34 moves up and down, it pulls the telescopic sliding arm 33 to extend and retract, swinging up and down. At the same time, the lower movable seat at the root of the telescopic sliding arm 33 moves in each side busbar guide rail 32, thereby causing the corn cobs on the crossarms on the adjacent telescopic sliding arms 33 to move and intermittently contact the corresponding inclined vertical plate 38, thereby achieving orientation adjustment. One corn cob after another falls longitudinally through the gap between the adjacent telescopic sliding arms 33 into the funnel falling channel 30.

[0088] As an example, in S3,

[0089] With the help of the following actions, the L-shaped swing arm 9 rotates and drives the variable center rod 11 to swing laterally left and right through the linkage drive sleeve 10, and the lower driven sleeve 12 drives the vertical long arm of the radial guide T-shaped seat 13 to move; then, the radial guide T-shaped seat 13 drives the first linkage horizontal arm 19 and the second linkage horizontal arm 20 to move left and right through the transverse reciprocating double arms 18, so that the semi-arc-shaped card seats 23 of the first linkage horizontal arm 19 and the second linkage horizontal arm 20 alternately reciprocate between the corresponding ear-dropping station 7 and threshing station 8;

[0090] S3.1, at the tasseling station 7, the semi-circular chuck 23 receives the falling corn cobs and is held by the elastic plate gripper 26. The perforated spike seat 22 enters the process through hole 24 to remove debris attached to the side wall of the semi-circular chuck 23. S3.2, at the threshing station 8, the corn cobs are dehulled and threshed. First, when the falling guide sleeve 28 reaches the threshing station 8, the extended stop arm 29 blocks the falling opening of the tasseling station 7. Then, the semi-circular chuck 23 and the internal contact side teeth 43 make dynamic friction contact with the outer coating of the corn cob. The rotating gear ring disc 42 rotates, and the drill bit base is used to descend and drill and thresh the corn cob through the falling guide sleeve 28. The spiral drill bit assembly 39 first drills the core of the cob. Next, the dehulling roller 40 continues to dehull, and the elastic steel ball 27 elastically contacts the corn cob coating and achieves lateral elastic expansion and contraction.

[0091] S3.3, the rotating gear ring disc 42 drives the actuating side arm 44, which actuates the falling material onto the fixed bottom storage channel 45, so that the threshed material and impurities pass through the falling particle channel 46 and enter the falling funnel 47 to be output downward to the next process.

[0092] The various embodiments of the present invention can be used individually or in combination.

[0093] The present invention has been described in detail for the purpose of making the disclosure clearer, and the prior art will not be listed in detail.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. It is obvious to those skilled in the art that multiple technical solutions of the present invention can be combined. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. All technical contents not described in detail in the present invention are well-known technologies.

Claims

1. An automated corn threshing process, characterized in that: Perform the following steps; S1, corn cobs are conveyed through the corn feeding device (1); S2, the corn cobs fall through the combing and falling device (2). in, The combing and falling device (2) includes a top cone disk (31), and several side busbar guide rails (32) are distributed on the inner side wall of the top cone disk (31). The lower movable seat of the telescopic sliding arm (33) is movable in each side busbar guide rail (32), and a central counterweight rod (34) is provided above the center of the top cone plate (31). The central counterweight rod (34) is hinged to the end of the telescopic sliding arm (33). A return spring part (36) is fitted on the telescopic sliding arm (33), a fixed sleeve (35) is connected to the upper end of the return spring part (36), and a guide pulley (37) is provided above the central counterweight rod (34). A pull rope (17) is threaded through the guide pulley (37), and the lower end of the pull rope (17) is connected to the central counterweight rod (34). An inclined vertical plate (38) with a height higher than the side busbar guide rail (32) is provided on the inner wall of the top cone plate (31). The corn cob falls longitudinally through the gap between adjacent telescopic sliding arms (33) into the funnel drop channel (30); S3, the falling corn cobs are threshed by the threshing device (3); The threshing device (3) includes a linkage threshing mechanism (5) provided on a support center frame (4), and a rotating external storage disk assembly (6) sleeved on the linkage threshing mechanism (5) provided on the support center frame (4). The rotating external storage disk assembly (6) includes a rotating gear ring disk body (42) that is rotatably set; the rotating gear ring disk body (42) is meshed with a drive gear set (41), and internal contact side teeth (43) are distributed on the inner cavity side wall of the rotating gear ring disk body (42). When the semi-arc-shaped chuck (23) of the linkage threshing mechanism (5) reaches the threshing station (8), the outer wall of the corn cob comes into dynamic frictional contact with the internal contact side teeth (43). A fixed bottom storage channel (45) is provided at the lower part of the support center frame (4) at the center of the rotating gear disc (42). The fixed bottom storage channel (45) is used to carry the falling corn cobs and debris. A toggle arm (44) is provided on the lower part of the inner side wall of the rotating gear disc (42), a falling particle channel (46) is provided on the fixed bottom storage channel (45), and a falling funnel (47) is provided below the falling particle channel (46). The linkage threshing mechanism (5) has a threshing station (7) near the center and a threshing station (8) near the rotating external storage disk assembly (6). At the tasseling station (7), the falling corn cobs are received, and at the threshing station (8), the corn cobs are dehulled and threshed. The linkage threshing mechanism (5) includes a mechanism support seat set on the support center frame (4); an L-shaped swing arm (9) that rotates in a vertical plane is set on the mechanism support seat; and a hinged root swing seat (14) located above the L-shaped swing arm (9) is set on the mechanism support seat. A linkage drive sleeve (10) is hinged at the end of the L-shaped swing arm (9). A variable center rod (11) slides in the linkage drive sleeve (10). A lower driven sleeve (12) is provided at the lower end of the variable center rod (11). A vertical long arm of a radial guide T-shaped seat (13) moves in the lower driven sleeve (12). The middle part of the variable center rod (11) is provided in the hinge root swing seat (14). A transverse reciprocating double arm (18) is connected to the radial guide T-shaped seat (13), and a first linkage cross arm (19) and a second linkage cross arm (20) with the same structure are symmetrically arranged on both sides of the transverse reciprocating double arm (18). Support guide frames (21) are provided on both sides of the mechanism support base; the first linkage cross arm (19) and the second linkage cross arm (20) extend and retract horizontally in the corresponding support guide frames (21); A semi-circular bracket (23) is provided at the end of the first linkage cross arm (19) and the second linkage cross arm (20); an elastic steel ball (27) is provided on the end face of the semi-circular bracket (23), a falling moving guide sleeve (28) is provided above the semi-circular bracket (23), and an extension stop arm (29) is provided on the rear side of the falling moving guide sleeve (28). The semi-circular mounting bracket (23) moves back and forth between the ear-dropping station (7) and the threshing station (8); At the corn shedding station (7), a funnel-shaped drop channel (30) is provided for dropping corn cobs; A drill bit base is provided above the threshing station (8). The drill bit base includes a core-removing cutter roller (40) and a spiral drill bit assembly (39) arranged above and below. When the falling guide sleeve (28) reaches the threshing station (8), the extended arm (29) blocks the falling opening of the ear-dropping station (7), and the drill bit base is used to drill and thresh the corn cob by descending through the falling guide sleeve (28). A lower semi-circular cone (25) is provided at the lower part of the semi-circular card holder (23), and an elastic plate gripper (26) with an opening is provided on the side wall of the semi-circular card holder (23) to support the corn cob falling from above. A vented spike seat (22) is provided on the support guide frame (21); The semi-circular card holder (23) has a process through hole (24) corresponding to the perforated protrusion seat (22) for removing attached debris; In S2, the falling conveying step is performed. First, the corn feeding device (1) conveys the corn cobs to the top cone plate (31). Then, under the action of the gravity of the central counterweight rod (34) and the elastic force of the return spring (36), the central counterweight rod (34) moves downward. Afterward, under the action of the pulling rope (17), the central counterweight rod (34) overcomes its own gravity and the elastic force of the return spring (36) and moves upward. Then, when the central counterweight rod (34) moves up and down, it pulls the telescopic sliding arm (33) to extend and retract. At the same time, the lower movable seat at the root of the telescopic sliding arm (33) moves in each side busbar guide rail (32), so that the corn cobs on the crossarm on the adjacent telescopic sliding arm (33) move and intermittently contact the corresponding inclined vertical plate (38), thereby realizing the adjustment of direction. The corn cobs fall longitudinally through the gap between the adjacent telescopic sliding arms (33) into the funnel falling channel (30).

2. The automatic corn threshing process according to claim 1, characterized in that: In S3, With the help of the following actions, the L-shaped swing arm (9) rotates and drives the variable center rod (11) to swing laterally left and right through the linkage drive sleeve (10), and the lower driven sleeve (12) drives the vertical long arm of the radial guide T-shaped seat (13) to move; then, the radial guide T-shaped seat (13) drives the first linkage horizontal arm (19) and the second linkage horizontal arm (20) to move left and right through the transverse reciprocating double arms (18), so that the semi-arc-shaped card seat (23) of the first linkage horizontal arm (19) and the second linkage horizontal arm (20) alternately reciprocates between the corresponding ear-dropping station (7) and threshing station (8); S3.1, at the corn shedding station (7), the semi-circular card holder (23) receives the falling corn cob and is held by the elastic sheet claw (26), and the vented protruding seat (22) enters the process through hole (24) to remove the debris attached to the side wall of the semi-circular card holder (23). S3.2, at the threshing station (8), the corn cobs are dehulled and threshed; first, when the falling guide sleeve (28) reaches the threshing station (8), the extended stop arm (29) blocks the falling mouth of the ear-dropping station (7); then, the semi-arc-shaped chuck (23) and the internal contact side teeth (43) make dynamic friction contact with the outer coating of the corn cob, the rotating gear ring disc (42) rotates, and the drill bit base is used to descend and drill the corn cob to thresh it through the falling guide sleeve (28), and the spiral drill bit group (39) first drills the core of the cob; second, the dehulling cutter roller (40) continues to dehull, and the elastic steel ball (27) elastically contacts the corn cob coating and realizes lateral elastic expansion and contraction; S3.3, the rotating gear ring disc (42) drives the actuating side arm (44), the actuating side arm (44) actuates the threshing and debris falling on the fixed bottom storage channel (45), so that the threshing and debris pass through the falling particle channel (46) and enter the falling funnel (47) and are output downward to the next process. The extended upper arm (15) of the central rod is used to achieve the linkage of steps S2 and S3 by pulling the rope (17).

3. A threshing device (3), characterized in that; The threshing device (3) includes a linkage threshing mechanism (5) provided on a support center frame (4), and a rotating external storage disk assembly (6) sleeved on the linkage threshing mechanism (5) provided on the support center frame (4). The rotating external storage disk assembly (6) includes a rotating gear ring disk body (42) that is rotatably set; the rotating gear ring disk body (42) is meshed with a drive gear set (41), and internal contact side teeth (43) are distributed on the inner cavity side wall of the rotating gear ring disk body (42). When the semi-arc-shaped chuck (23) of the linkage threshing mechanism (5) reaches the threshing station (8), the outer wall of the corn cob comes into dynamic frictional contact with the internal contact side teeth (43). A fixed bottom storage channel (45) is provided at the lower part of the support center frame (4) at the center of the rotating gear disc (42). The fixed bottom storage channel (45) is used to carry the falling corn cobs and debris. A toggle arm (44) is provided on the lower part of the inner side wall of the rotating gear disc (42), a falling particle channel (46) is provided on the fixed bottom storage channel (45), and a falling funnel (47) is provided below the falling particle channel (46). The linkage threshing mechanism (5) has a threshing station (7) near the center and a threshing station (8) near the rotating external storage disk assembly (6). At the tasseling station (7), the falling corn cobs are received, and at the threshing station (8), the corn cobs are dehulled and threshed. The linkage threshing mechanism (5) includes a mechanism support seat set on the support center frame (4); an L-shaped swing arm (9) that rotates in a vertical plane is set on the mechanism support seat; and a hinged root swing seat (14) located above the L-shaped swing arm (9) is set on the mechanism support seat. A linkage drive sleeve (10) is hinged at the end of the L-shaped swing arm (9). A variable center rod (11) slides in the linkage drive sleeve (10). A lower driven sleeve (12) is provided at the lower end of the variable center rod (11). A vertical long arm of a radial guide T-shaped seat (13) moves in the lower driven sleeve (12). The middle part of the variable center rod (11) is provided in the hinge root swing seat (14). A transverse reciprocating double arm (18) is connected to the radial guide T-shaped seat (13), and a first linkage cross arm (19) and a second linkage cross arm (20) with the same structure are symmetrically arranged on both sides of the transverse reciprocating double arm (18). Support guide frames (21) are provided on both sides of the mechanism support base; the first linkage cross arm (19) and the second linkage cross arm (20) extend and retract horizontally in the corresponding support guide frames (21); A semi-circular bracket (23) is provided at the end of the first linkage cross arm (19) and the second linkage cross arm (20); an elastic steel ball (27) is provided on the end face of the semi-circular bracket (23), a falling moving guide sleeve (28) is provided above the semi-circular bracket (23), and an extension stop arm (29) is provided on the rear side of the falling moving guide sleeve (28). The semi-circular mounting bracket (23) moves back and forth between the ear-dropping station (7) and the threshing station (8); At the corn shedding station (7), a funnel-shaped drop channel (30) is provided for dropping corn cobs; A drill bit base is provided above the threshing station (8). The drill bit base includes a core-removing cutter roller (40) and a spiral drill bit assembly (39) arranged above and below. When the falling guide sleeve (28) reaches the threshing station (8), the extended arm (29) blocks the falling opening of the ear-dropping station (7), and the drill bit base is used to drill and thresh the corn cob by descending through the falling guide sleeve (28). A lower semi-circular cone (25) is provided at the lower part of the semi-circular card holder (23), and an elastic plate gripper (26) with an opening is provided on the side wall of the semi-circular card holder (23) to support the corn cob falling from above. A vented spike seat (22) is provided on the support guide frame (21); The semi-circular card holder (23) has a process through hole (24) corresponding to the vented protrusion seat (22) for removing attached debris.

4. The threshing device (3) according to claim 3, characterized in that: An extended upper arm (15) is provided at the upper end of the variable center rod (11), and an upper traction seat (16) with a traction rope (17) is provided at the top of the extended upper arm (15).

5. An automatic corn threshing device, characterized in that: Includes the threshing device (3) as described in claim 4; The threshing device (3) is used to clamp the falling corn cobs and thresh them.

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