Grain unloading device of corn harvester
By designing the grain unloading device of the corn harvester, and using the cooperation of the material guide and lifting plate, the problem of incomplete ear unloading of the fruit ear box of the corn harvester is solved, the complete unloading of the corn ears and efficient ear unloading is achieved, and the demand and safety hazards of artificial material lifting are reduced.
Patent Information
- Application Number
- CN202421899290.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-07
AI Technical Summary
The existing corn harvester fruit ear box has the problem of incomplete unloading of ears during the unloading process, which causes corn ears to remain in the fruit ear box and require manual material removal, which poses safety hazards and high labor intensity, and has low erection unloading efficiency.
A corn harvester grain unloading device is designed, including a support frame and a granary. The bottom of the granary is equipped with a material guide part 1 and a material guide part 2, and a grain unloading port is provided at the bottom of the front side plate. The lifting plate can slidally open or close the grain unloading port. The driving component drives the rack and limit barrier bar to lift and lower movement, so as to realize the opening and closing of the grain unloading port.
The device can completely remove corn ears, prevent residue, reduce the need for manual material removal, improve the efficiency of ear unloading, and reduce labor intensity and safety hazards.
Smart Images
Figure CN222928844U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of corn harvesters, in particular to a grain unloading device for a corn harvester. Background Art
[0002] A corn harvester is an agricultural machine that can complete multiple operations such as ear picking, stacking, and straw returning to the field at one time when the corn is ripe. The corn harvester picks ears when the corn is in a growing state (referred to as standing-stalk ear picking). Under the action of the ear picking roller and the ear picking board, the ear stalk is broken. Due to the height difference between the inner and outer picking rollers, the ears fall into the ear box. After the ear box is full, the box is opened and stacked. The high-speed rotating cutter cuts the straw from the root and enters the crushing mechanism to be cut into pieces 3-5 cm long, and the cut straw naturally falls to the ground. Then the ears are transported to the field, peeled by a peeling machine, and threshed after drying.
[0003] In the process of unloading ears of the existing corn harvester ear box, there is a problem that the ear box cannot unload ears completely. The corn ears in the ear box are not easy to be emptied completely, and some corn ears will remain in the ear box, which requires manual material prying. There are safety hazards and high labor intensity, and the unloading efficiency of ears is relatively low. Summary of the Invention
[0004] The utility model provides a grain unloading device for a corn harvester to solve the problem that the ear box of the existing corn harvester cannot unload ears completely during the ear unloading process, and some corn ears will remain in the ear box. The device can completely unload the corn ears from the granary, prevent the corn ears from remaining in the granary, no longer require manual material prying, and improve the unloading efficiency of ears.
[0005] To achieve the above object, the technical solution of the utility model is: a grain unloading device for a corn harvester, including a support frame and a granary located above the support frame. The bottom of the granary is inclined downwardly with a first material guiding part and a second material guiding part. A grain unloading port is opened at the lower part of the front side plate of the granary. A lifting plate is slidably arranged inside the front side plate of the granary. Strip-shaped sliding holes are respectively opened at the two sides of the granary corresponding to the position of the lifting plate. Both ends of the lifting plate respectively pass through the two strip-shaped sliding holes and are fixedly connected with limit stop strips. The granary plays a role in collecting corn ears. When unloading ears, the first material guiding part and the second material guiding part play a role in guiding the corn ears, so as to unload the corn ears from the granary. Among them, the corn ears in the granary can be discharged at the grain unloading port, and the lifting plate plays a role in opening and closing the grain unloading port.
[0006] A rack is fixedly arranged on the upper part of the outer side of the limiting stop bar. A driving mechanism is also arranged on the grain bin. The driving mechanism includes a driving component and a transmission component. The driving component is connected to the transmission component, and the transmission component is in transmission connection with the rack. The driving component drives the rack to move up and down through the transmission component, so that the rack drives the limiting stop bar to move up and down, and further the limiting stop bar drives the lifting plate to move up and down, achieving the purpose of opening or closing the grain unloading port.
[0007] A jacking component for driving the grain bin to rotate is arranged on the support frame; a rotating component is arranged between the support frame and the grain bin, and the grain bin is connected to the support frame through the rotating component. The jacking component can drive the grain bin to rotate to ensure that the corn cobs are completely unloaded from the grain bin.
[0008] Furthermore, a plurality of support columns are arranged on the support frame at intervals. An inclined support part matching the first material guiding part is arranged at the top of the support column, and the support column plays a role in supporting the grain bin.
[0009] Furthermore, a plurality of sliding grooves are arranged at intervals on the inner side of the front side plate of the grain bin. A plurality of sliding plates corresponding to the sliding grooves are arranged at intervals on the outer side of the lifting plate, and the sliding plates are slidably arranged in the sliding grooves. The lifting plate is enabled to move up and down through the cooperation of the sliding plates and the sliding grooves.
[0010] Furthermore, the width of the lifting plate is smaller than the length of the limiting stop bar, and the lifting plate is fixedly arranged in the middle of the limiting stop bar. The purpose is that when the lifting plate rises or falls, the limiting stop bar can always close the strip-shaped sliding hole.
[0011] Furthermore, the transmission component is arranged on the outer side of the front side plate of the grain bin. The transmission component includes a bearing block with a seat two and a rotating shaft. A plurality of the bearing blocks with a seat two are arranged at intervals on the outer side of the front side plate of the grain bin. The rotating shaft is in interference fit with the inner ring of the bearing block with a seat two. Gears are arranged at both ends of the rotating shaft, and the gears are meshed and connected with the rack; a driven belt pulley is also fixedly arranged at one end of the rotating shaft.
[0012] Furthermore, the driving component is arranged on one side of the grain bin. The driving component includes a support frame, a reduction motor and a transmission belt. The support frame is fixedly arranged on the grain bin, the reduction motor is fixedly arranged on the support frame, a driving belt pulley is arranged at the end of the output shaft of the reduction motor, and the transmission belt is sleeved on the driving belt pulley and the driven belt pulley. The driving component drives the driven belt pulley to rotate so that the driven belt pulley drives the rotating shaft to rotate synchronously, so that the gear drives the rack to move up and down, and thus the limiting stop bar drives the lifting plate to move up and down.
[0013] Furthermore, the jacking assembly includes a first hinge seat, a second hinge seat and an oil cylinder. The first hinge seat is fixedly arranged at the first material guiding part, the second hinge seat is fixedly arranged at the top of the support frame, and the end of the piston rod of the oil cylinder is hinged to the first hinge seat, and the tail end is hinged to the second hinge seat. The oil cylinder drives the grain bin to rotate to ensure that the corn cobs inside the grain bin can be completely unloaded.
[0014] Furthermore, the rotating assembly includes a connecting block, a rotating shaft and a first pedestal bearing. A plurality of the connecting blocks are arranged at intervals at the bottom of the front end of the grain bin, and the rotating shaft is fixedly sleeved on the connecting block; two of the first pedestal bearings are symmetrically arranged on the support frame, and the two ends of the rotating shaft are in interference fit with the inner rings of the two first pedestal bearings respectively. The cooperation between the rotating shaft and the first pedestal bearing enables the grain bin to rotate.
[0015] Through the above technical solutions, the beneficial effects of the present utility model are as follows:
[0016] The structure of the present utility model is reasonable and has good use effects. It can completely unload the corn cobs from the grain bin, prevent the corn cobs from remaining in the grain bin, no longer requires manual raking, reduces the labor intensity and potential safety hazards, and improves the unloading efficiency of the cobs.
[0017] The present utility model unloads the corn cobs in the grain bin through the unloading opening on the grain bin, and the lifting plate plays a role in closing or opening the unloading opening; among them, the driving assembly drives the driven pulley to rotate so that the driven pulley drives the rotating shaft to rotate synchronously, the rotating shaft drives the gear to rotate synchronously, so that the gear drives the rack to make a lifting movement, and the rack drives the lifting plate to make a lifting movement through the limit strip, thereby achieving the effect of opening or closing the unloading opening; among them, the first material guiding part and the second material guiding part play a role in guiding the corn cobs, so as to unload the corn cobs from the grain bin and improve the unloading efficiency of the cobs.
[0018] The oil cylinder of the jacking assembly of the present utility model serves the purpose of driving the grain bin to rotate. When there are still corn cobs remaining in the grain bin and not unloaded, the oil cylinder can be used to drive the grain bin to rotate so that the remaining corn cobs in the grain bin flow down, ensuring that the corn cobs in the grain bin are completely unloaded, and solving the problem of incomplete unloading of the ear box of the existing corn harvester. Description of the Drawings
[0019] Figure 1 is a schematic structural diagram of a grain unloading device of a corn harvester of the present utility model Figure 1 ;
[0020] Figure 2 is a schematic structural diagram of a grain unloading device of a corn harvester of the present utility model Figure 2 ;
[0021] Figure 3Structural schematic of a grain unloading device of a corn harvester of the present utility model Figure 3 ;
[0022] Figure 4 It is a structural schematic diagram of the grain bin of the present utility model;
[0023] Figure 5 It is a structural schematic diagram of the lifting plate of the present utility model.
[0024] The reference numerals in the drawings are: 1 is a support frame, 2 is a support column, 3 is a grain bin, 4 is a first material guiding part, 5 is a second material guiding part, 6 is a connecting block, 7 is a rotating shaft, 8 is a pedestal bearing I, 9 is a hinge seat I, 10 is a hinge seat II, 11 is an oil cylinder, 12 is a grain unloading port, 13 is a chute, 14 is a strip-shaped sliding hole, 15 is a lifting plate, 16 is a sliding plate, 17 is a limiting strip, 18 is a rack, 19 is a pedestal bearing II, 20 is a rotating shaft, 21 is a gear, 22 is a driven belt pulley, 23 is a support frame, 24 is a reduction motor, 25 is a driving belt pulley, 26 is a transmission belt. Specific embodiments
[0025] The present utility model will be further described below in conjunction with the drawings and specific embodiments:
[0026] As Figures 1 to 5 shown, a grain unloading device of a corn harvester includes a support frame 1 and a grain bin 3 located above the support frame 1. The bottom of the grain bin 3 is inclined downwardly with a first material guiding part 4 and a second material guiding part 5. A grain unloading port 12 is opened in the lower part of the front side plate of the grain bin 3. A lifting plate 15 is slidably arranged inside the front side plate of the grain bin 3; Strip-shaped sliding holes 14 are opened at the positions corresponding to the lifting plate 15 on both sides of the grain bin 3. Both ends of the lifting plate 15 pass through the two strip-shaped sliding holes 14 respectively and are fixedly connected with a limiting strip 17. In this embodiment, the support frame 1 includes two longitudinal beams, and three cross beams are installed at intervals between the two longitudinal beams. The two ends of the cross beam are respectively welded and fixed to the two longitudinal beams; Among them, the height of the first material guiding part 4 is higher than the height of the second material guiding part 5, and the angle between the second material guiding part 5 and the horizontal plane is smaller than the angle between the first material guiding part 4 and the horizontal plane. The first material guiding part 4 and the second material guiding part 5 play a role in guiding the corn cobs in the grain bin 3. After the lifting plate 15 rises, the corn cobs can be automatically discharged from the grain unloading port 12, and it is ensured that the corn cobs are completely unloaded from the grain bin 3; The lifting plate 15 plays a role in opening or closing the grain unloading port 12. The width of the lifting plate 15 is smaller than the length of the strip-shaped sliding hole 14, ensuring that the lifting plate 15 can make a lifting movement; The limiting strip 17 is slidably connected with the grain bin 3, and the limiting strip 17 plays a role in limiting the lifting plate 15.
[0027] On the upper part of the outer side of the limit stop bar 17, a rack 18 is fixedly arranged. On the granary 3, a driving mechanism is also arranged, which includes a driving component and a transmission component. The driving component is connected to the transmission component, and the transmission component is in transmission connection with the rack 18. In this embodiment, the rack 18 is fixedly welded on the limit stop bar 17. The driving component drives the rack 18 to move up and down through the transmission component. The rack 18 drives the limit stop bar 17 to move up and down, and the limit stop bar 17 drives the lifting plate 15 to move up and down, so as to open or close the grain unloading port 12. The rising of the lifting plate 15 serves to open the grain unloading port 12, and the descending of the lifting plate 15 serves to close the grain unloading port 12.
[0028] On the support frame 1, a jacking component for driving the granary 3 to rotate is arranged; a rotating component is arranged between the support frame 1 and the granary 3, and the granary 3 is connected to the support frame 1 through the rotating component. In this embodiment, when there are still corn cobs remaining in the granary 3 and not unloaded, the granary 3 is driven to rotate through the jacking component, so that the remaining corn cobs in the granary 3 flow down, ensuring that the corn cobs in the granary 3 are completely unloaded.
[0029] A plurality of support columns 2 are arranged on the support frame 1 at intervals, and an inclined support part matching the first material guiding part 4 is arranged at the top of the support column 2. In this embodiment, the number of the support columns 2 is four, and the lower ends of the support columns 2 are bolted and fixed on the top of the cross beam of the support frame 1. When the granary 3 is not unloading ears, the first material guiding part 4 of the granary 3 falls on the inclined support part of the support column 2, and the support column 2 plays a supporting role for the granary 3.
[0030] A plurality of sliding grooves 13 are arranged at intervals on the inner side of the front side plate of the granary 3, and a plurality of sliding plates 16 corresponding to the sliding grooves 13 are arranged at intervals on the outer side of the lifting plate 15. The sliding plates 16 are slidably arranged in the sliding grooves 13. In this embodiment, the number of the sliding grooves 13 and the sliding plates 16 is four each. Through the cooperation of the sliding grooves 13 and the sliding plates 16, the lifting plate 15 is facilitated to move up and down. When the lifting plate 15 moves up and down, the sliding plates 16 slide in the sliding grooves 13.
[0031] The width of the lifting plate 15 is smaller than the length of the limit stop bar 17, and the lifting plate 15 is fixedly arranged in the middle of the limit stop bar 17. In this embodiment, when the lifting plate 15 rises or falls, the limit stop bar 15 can always close the strip-shaped sliding hole 14.
[0032] The transmission assembly is arranged on the outer side of the front side plate of the grain bin 3. The transmission assembly includes a pedestal bearing II 19 and a rotating shaft 20. A plurality of the pedestal bearings II 19 are arranged at intervals on the outer side of the front side plate of the grain bin 3. The rotating shaft 20 is in interference fit with the inner ring of the pedestal bearing II 19. Gears 21 are arranged at both ends of the rotating shaft 20, and the gears 21 are meshed and connected with the rack 18; a driven pulley 22 is also fixedly arranged at one end of the rotating shaft 20. In this embodiment, the number of the pedestal bearings II 19 is three, and the pedestal bearings II 19 are bolted to the outer side of the front side plate of the grain bin 3.
[0033] The driving assembly is arranged on one side of the grain bin 3. The driving assembly includes a support frame 23, a reduction motor 24 and a transmission belt 26. The support frame 23 is fixedly arranged on the grain bin 3, the reduction motor 24 is fixedly arranged on the support frame 23, a driving pulley 25 is arranged at the end of the output shaft of the reduction motor 24, and the transmission belt 26 is sleeved on the driving pulley 25 and the driven pulley 22. In this embodiment, the support frame 23 includes a mounting plate and a support plate. The mounting plate is bolted to the outside of the grain bin 3, the support plate is vertically mounted on the mounting plate, two support rods are mounted at the bottom of the support plate, and both ends of the support rods are fixedly connected with the support plate and the mounting plate respectively, which plays a role in stabilizing and strengthening the support frame 23. The reduction motor 24 is mounted on the top of the support plate, and the support frame 23 plays a role in supporting the reduction motor 24; when the grain bin 3 needs to unload ears, the reduction motor 24 is started, the output shaft of the reduction motor 24 drives the driving pulley 25 to rotate, the driving pulley 25 drives the driven pulley 22 to rotate synchronously through the transmission belt 26, the driven pulley 22 drives the rotating shaft 20 to rotate synchronously, the rotating shaft 20 drives the gears 21 at both ends thereof to rotate, the gears 21 drive the rack 18 to move upward, the rack 18 drives the lifting plate 15 to rise through the limit stop bar 17, so as to open the grain unloading port 12. After the grain unloading port 12 is opened, the corn ears inside the grain bin 3 automatically discharge from the grain unloading port 12. During this process, the limit stop bar 17 slides upward on the outside of the grain bin 3, the end of the lifting plate 15 slides upward in the strip-shaped sliding hole 14, and the sliding plate 16 on the lifting plate 15 slides in the sliding groove 13.
[0034] The jacking assembly includes a hinge seat I 9, a hinge seat II 10 and an oil cylinder 11. The hinge seat I 9 is fixedly arranged at the material guiding part I 4, the hinge seat II 10 is fixedly arranged at the top of the support frame 1, and the piston rod end of the oil cylinder 11 is hinged with the hinge seat I 9 and the tail end is hinged with the hinge seat II 10. In this embodiment, the number of the jacking assemblies is two. The hinge seat I 9 is welded and fixed to the top of the grain bin 3, and the hinge seat II 10 is welded and fixed to the top of the cross beam of the support frame 1; a spherical eye joint is connected to the piston rod end of the oil cylinder 11, an ear plate is fixedly connected to the tail end of the oil cylinder 11, the spherical eye joint is sleeved on the pin shaft of the hinge seat I 9, and the ear plate is rotatably sleeved on the pin shaft of the hinge seat II 10.
[0035] The rotating assembly includes a connecting block 6, a rotating shaft 7, and a pedestal bearing 8. A plurality of the connecting blocks 6 are arranged at intervals at the bottom of the front end of the grain bin 3, and the rotating shaft 7 is fixedly sleeved on the connecting block 6; two of the pedestal bearings 8 are symmetrically arranged on the support frame 1, and both ends of the rotating shaft 7 are in interference fit with the inner rings of the two pedestal bearings 8 respectively. In this embodiment, the number of the connecting blocks 6 is four, the connecting blocks 6 are welded and fixed to the bottom of the grain bin 3, and the pedestal bearings 8 are bolted and fixed to the tops of the longitudinal beams of the support frame 1; when there are still corn cobs remaining in the grain bin 3 and not unloaded, the oil cylinder 11 is opened, and the piston rod of the oil cylinder 11 extends to jack up the grain bin 3 upward, and the grain bin 3 rotates through the cooperation of the rotating shaft 7 and the pedestal bearing 8, so that the remaining corn cobs in the grain bin 3 flow down from the unloading opening 12, ensuring that the corn cobs in the grain bin 3 are completely unloaded.
[0036] The working principle of the present utility model is as follows: when the grain bin 3 is filled with corn cobs and the corn cobs in the grain bin 3 need to be unloaded, the reduction motor 24 is opened, the output shaft of the reduction motor 24 drives the driving pulley 25 to rotate, the driving pulley 25 drives the driven pulley 22 to rotate synchronously through the transmission belt 26, the driven pulley 22 drives the rotating shaft 20 to rotate synchronously, the rotating shaft 20 drives the gears 21 at both ends thereof to rotate, the gears 21 drive the rack 18 to move upward, and the rack 18 drives the lifting plate 15 to rise through the limit bar 17 to open the unloading opening 12. After the unloading opening 12 is opened, under the action of the first material guiding part 4 and the second material guiding part 5, the corn cobs inside the grain bin 3 automatically discharge from the unloading opening 12. During this process, the limit bar 17 slides upward outside the grain bin 3, the end of the lifting plate 15 slides upward in the strip-shaped sliding hole 14, and the sliding plate 16 on the lifting plate 15 slides in the sliding groove 13.
[0037] When there are still corn cobs remaining in the grain bin 3 and not unloaded, the oil cylinder 11 is opened, and the piston rod of the oil cylinder 11 extends to jack up the grain bin 3 upward, and the grain bin 3 rotates through the cooperation of the rotating shaft 7 and the pedestal bearing 8, so that the remaining corn cobs in the grain bin 3 are discharged from the unloading opening 12, ensuring that the corn cobs in the grain bin 3 are completely unloaded. After the corn cobs in the grain bin 3 are completely unloaded, the piston rod of the oil cylinder 11 retracts and drives the grain bin 3 to rotate back to the initial position. When the grain bin 3 lands on the inclined support part of the support column 2, the oil cylinder 11 is closed.
[0038] However, then close the grain unloading opening 12 with the lifting plate 15 again, and turn on the reduction motor 24 again. The output shaft of the reduction motor 24 drives the driving pulley 25 to rotate in the reverse direction. The driving pulley 25 drives the driven pulley 22 to rotate in the reverse direction through the transmission belt 26. The driven pulley 22 drives the rotating shaft 20 to rotate in the reverse direction. The rotating shaft 20 drives the gears 21 at both ends thereof to rotate in the reverse direction. The gears 21 drive the rack 18 to move downward. The rack 18 drives the lifting plate 15 to descend through the limit stop bar 17 to close the grain unloading opening 12. During this process, the limit stop bar 17 slides downward on the outer side of the granary 3, the end of the lifting plate 15 slides downward in the strip-shaped sliding hole 14, and the sliding plate 16 on the lifting plate 15 slides in the sliding groove 13.
[0039] The above-described embodiments are only the preferred embodiments of the utility model, and do not limit the scope of implementation of the utility model. Therefore, any equivalent changes or modifications made to the technical solutions described in the scope of the utility model patent shall be included in the scope of the patent application of the utility model.
Claims
1. A corn harvester grain unloading device, comprising a support frame (1) and a grain bin (3) located above the support frame (1), characterized in that: The bottom of the granary (3) is provided with a material guide part 1 (4) and a material guide part 2 (5) which are inclined downwards, a grain discharge port (12) is provided at the lower part of the front side plate of the granary (3), and a lifting plate (15) is slidably provided inside the front side plate of the granary (3); strip-shaped sliding holes (14) are provided at the positions corresponding to the lifting plates (15) on both sides of the granary (3), and the two ends of the lifting plate (15) respectively pass through the two strip-shaped sliding holes (14) and are fixedly connected to the limit stop strip (17); A rack (18) is fixedly provided on the upper outer portion of the limit stop bar (17); a driving mechanism is also provided on the granary (3); the driving mechanism comprises a driving assembly and a transmission assembly; the driving assembly is connected to the transmission assembly, and the transmission assembly is transmission-connected to the rack (18); The support frame (1) is provided with a lifting assembly for driving the granary (3) to rotate; a rotating assembly is provided between the support frame (1) and the granary (3), and the granary (3) is connected to the support frame (1) via the rotating assembly.
2. A corn harvester grain unloading device according to claim 1, characterized in that: A plurality of support columns (2) are arranged at intervals on the support frame (1), and the tops of the support columns (2) are provided with oblique support portions that match the material guide portion 1 (4).
3. A corn harvester grain unloading device according to claim 1, characterized in that: A plurality of slide grooves (13) are arranged at intervals on the inner side of the front side plate of the granary (3), and a plurality of slide plates (16) corresponding to the slide grooves (13) are arranged at intervals on the outer side of the lifting plate (15), and the slide plates (16) are slidably arranged in the slide grooves (13).
4. A corn harvester grain unloading device according to claim 1, characterized in that: The width of the lifting plate (15) is smaller than the length of the limiting stop bar (17), and the lifting plate (15) is fixedly arranged in the middle of the limiting stop bar (17).
5. A corn harvester grain unloading device according to claim 1, characterized in that: The transmission assembly is arranged on the outer side of the front side plate of the granary (3), and the transmission assembly comprises a second seat bearing (19) and a rotating shaft (20). A plurality of the second seat bearings (19) are arranged at intervals on the outer side of the front side plate of the granary (3). The rotating shaft (20) is interference fit with the inner ring of the second seat bearing (19). Gears (21) are arranged at both ends of the rotating shaft (20), and the gears (21) are meshedly connected with the rack (18). A driven pulley (22) is also fixedly arranged at one end of the rotating shaft (20).
6. A corn harvester grain unloading device according to claim 5, characterized in that: The drive assembly is arranged on one side of the granary (3), and comprises a support frame (23), a reduction motor (24) and a transmission belt (26); the support frame (23) is fixedly arranged on the granary (3); the reduction motor (24) is fixedly arranged on the support frame (23); a driving pulley (25) is arranged at the end of the output shaft of the reduction motor (24); and the transmission belt (26) is sleeved on the driving pulley (25) and the driven pulley (22).
7. A corn harvester grain unloading device according to claim 1, characterized in that: The lifting assembly comprises an articulated seat one (9), an articulated seat two (10) and an oil cylinder (11); the articulated seat one (9) is fixedly arranged at the material guide part one (4); the articulated seat two (10) is fixedly arranged at the top of the support frame (1); the piston rod end of the oil cylinder (11) is hinged to the articulated seat one (9) and the tail end is hinged to the articulated seat two (10).
8. The corn harvester grain unloading device according to claim 1, characterized in that: The rotating assembly comprises a connecting block (6), a rotating shaft (7) and a seat bearing (8); a plurality of the connecting blocks (6) are arranged at intervals at the bottom of the front end of the granary (3); the rotating shaft (7) is fixedly sleeved on the connecting block (6); two seat bearings (8) are symmetrically arranged on the support frame (1); and the two ends of the rotating shaft (7) are respectively interference fit with the inner rings of the two seat bearings (8).