Corn header ear picking frame with flail knife structure

Abstract

The utility model discloses a corn header ear picking frame with a flail knife structure, which comprises a gear box arranged on a corn harvester, and further comprises a header mechanism for harvesting corn, an ear picking mechanism for guiding corn ear picking and a flail knife mechanism for smashing corn stalks and returning the corn stalks to the field, the header mechanism is assembled on one side of the gearbox, the ear picking mechanism is arranged on the lower portion of the end, away from the gearbox, of the header mechanism, and the flail knife mechanism is arranged on one side of the lower portion of the header mechanism corresponding to the ear picking mechanism. The corn harvester is simple and convenient to adjust, easy to overhaul, small in number of transmission structures, small in occupied space and small in power loss, the ear picking mechanism is matched with the flail knife mechanism, cut stalks can be smashed and returned to the field in the harvesting operation process, multiple functions are achieved through one-time operation, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a corn harvesting platform ear picking rack with a fling knife structure. Background Art

[0002] In the prior art, there are various corn harvesters on the market, and the power transmission is also various. The common corn harvester box usually includes a box body, in which a driving shaft, a transmission shaft, two straw chain gear shafts and two stalk pulling roller gear shafts are arranged. The driving shaft is connected to the two straw chain gear shafts and the two stalk pulling roller gear shafts through the transmission shaft, thereby realizing the straw pulling and ear picking functions. This corn harvester box body does not have a straw chopping function. To realize the straw chopping function, the machine needs to be equipped with a straw chopping device separately, which will increase the power consumption of the machine. The corn harvester box body with straw chopping function is mostly The output gear for driving the chopping box is suspended outside the main box body, that is, the knife box, cutting table box and main shaft of the corn harvester's cutting table gearbox are separately arranged, resulting in the inconvenience of adjusting the output gear suspended outside and the transmission gear in the chopping box body during installation, and difficulty in maintenance. Alternatively, the knife box and cutting table box are powered separately through the cutting table main shaft to realize the harvesting operation. This structure is complicated, not only with multiple transmission structures, large space occupation, and large power loss, but also inconvenient processing and assembly, high production cost, and prone to failure during use. Maintenance is also relatively troublesome, and the cost of use is high.

[0003] The Chinese utility model patent with application number: 202321748554.0 discloses a corn harvester cutting table structure, including: a cutting table gearbox, a cutting table frame, a pulling chain, an ear picking roller and a flinging box. The cutting table frame and the flinging box are both vertically arranged on the front side of the cutting table gearbox, the pulling chain is movably arranged on the upper part of the cutting table frame, the ear picking roller is movably arranged on the inner side of the cutting table frame, the ear picking roller and the flinging box are arranged side by side, the ear picking roller is rotatably connected to the main shaft in the cutting table gearbox through a driven gear arranged at one end, one end of the flinging box is meshed with the main shaft through a corresponding gear, and the pulling chain is movably connected to the sprocket assembly on the upper part of the cutting table gearbox. However, in the cutting table structure of this corn harvester, the blade swinging transmission structure and the cutting table transmission structure are separately arranged, and the two are connected by a rice-pulling chain sprocket. During installation, the output gear suspended outside is inconvenient to adjust with the transmission gear in the chopping box, and maintenance is difficult. The structure is complex, there are many transmission structures, the space occupied is large, and the power loss is large. Moreover, it is unable to guide the stalks during the ear picking process and break the cut stalks back into the field, resulting in low operating efficiency. Utility Model Content

[0004] The utility model aims to provide a corn harvesting platform ear picking rack with a fling knife structure.

[0005] In order to achieve the above purpose, the technical solution proposed by the utility model is:

[0006] A corn harvesting frame with a blade-flinging structure includes a gear box, which is arranged on a corn harvester. It also includes a harvesting platform mechanism for harvesting corn, an ear-picking mechanism for guiding corn ears, and a blade-flinging mechanism for breaking up corn stalks and returning them to the field. The harvesting platform mechanism is assembled on one side of the gear box, the ear-picking mechanism is arranged at the lower part of one end of the harvesting platform mechanism away from the gear box, and the blade-flinging mechanism is configured on one side of the lower part of the harvesting platform mechanism corresponding to the ear-picking mechanism.

[0007] The cutting platform mechanism includes a cutting platform base plate, a cutting platform side frame and a plowing assembly. The cutting platform base plate is arranged on one side of the gear box and is fixedly connected to the gear box. The cutting platform side frame is arranged on the lower part of one side of the cutting platform base plate and is fixedly connected to the cutting platform base plate. The plowing assembly is assembled on the upper part of the cutting platform base plate.

[0008] The plowing assembly includes a plowing sprocket, a plowing tensioning wheel, a plowing transmission chain and a plowing baffle. The plowing sprocket is arranged on the plowing shaft of the gear box and is fixedly connected to the plowing shaft of the gear box. The plowing tensioning wheel is arranged on the upper part of the end of the cutting platform base away from the gear box corresponding to the plowing sprocket and is slidably connected to the cutting platform base. The plowing transmission chain is arranged around the outside of the plowing sprocket and the plowing tensioning wheel and is meshed with the plowing sprocket and the plowing tensioning wheel. The plowing tensioning wheel is connected to the plowing sprocket through the plowing transmission chain. The plowing baffle is provided with a plurality of groups, and the plurality of groups of plowing baffles are evenly spaced outside the plowing transmission chain and fixedly connected to the plowing transmission chain.

[0009] It also includes a tensioning cylinder and a tensioning mounting base, the tensioning cylinder is arranged at the middle of the upper end of the cutting platform base plate and is fixedly connected to the cutting platform base plate, the output end of the tensioning cylinder is arranged toward the ream tensioning wheel, the tensioning mounting base is arranged at the output end of the tensioning cylinder and is fixedly connected to the output end of the tensioning cylinder, the ream tensioning wheel is arranged at the upper part of the tensioning mounting base and is rotatably connected to the tensioning mounting base through a rotating shaft, and the ream tensioning wheel is slidably connected to the cutting platform base plate through the tensioning mounting base.

[0010] The ear picking mechanism includes an ear picking base, an ear picking roller and an ear picking end head. The ear picking base is arranged at the bottom of the cutting platform base plate and is fixedly connected to the cutting platform base plate. The ear picking roller is arranged at the end of the ear picking base away from the gear box and is transmission-connected to the ear picking shaft of the gear box through a rotating shaft. The ear picking end head is arranged on the inner side of the end of the cutting platform side frame away from the gear box and is fixedly connected to the cutting platform side frame. The ear picking end head is rotationally connected to the end of the ear picking roller away from the ear picking base through a mounting frame.

[0011] It also includes a guide assembly, which includes a mounting base, an ear-picking side plate and a guide base plate. The mounting base plate is arranged on an end of the cutting platform base plate away from the gear box and is fixedly connected to the cutting platform base plate. The ear-picking side plate is arranged on a side of the mounting base plate away from the cutting platform side frame and is fixedly connected to the mounting base plate. The guide base plate is arranged at the lower part of the mounting base plate and is fixedly connected to the mounting base plate by mounting bolts. The mounting base plate, the ear-picking side plate and the guide base plate together constitute a double-layer shovel-shaped guide structure.

[0012] There are two groups of cutting platform mechanisms and ear picking mechanisms, which are symmetrically arranged on one side of the gear box and with a distance between them.

[0013] The blade-flinging mechanism includes a blade-flinging base, a blade-flinging base plate, a cutting blade-flinging blade and a blade-flinging end. The blade-flinging base is arranged at the bottom of one group of the cutting platform side frames and is fixedly connected to the corresponding cutting platform side frames. The blade-flinging base plate is arranged at the lower part of the blade-flinging base and is connected to the blade-flinging shaft of the gear box through a transmission shaft and a worm gear structure. There are two groups of cutting blades, and the two groups of cutting blades are relatively arranged at the two ends of the blade-flinging base plate and are fixedly connected to the blade-flinging base plate. The blade-flinging end plate is arranged at the bottom of the blade-flinging base plate and is fixedly connected to the blade-flinging base plate. The blade-flinging base plate is fixedly connected to the transmission shaft on the inner side of the blade-flinging base through the blade-flinging end plate.

[0014] The blade swing base is arranged obliquely at the bottom of the cutting platform side frame.

[0015] It also includes a clutch, which is arranged on one side of the header side frame corresponding to the connection between the transmission shaft and the worm gear structure.

[0016] The beneficial effects of the utility model are:

[0017] It is equipped with a cutting table mechanism and a knife-throwing mechanism, both of which are driven by a gear box and the transmission structures of the two are integrated. It is easy to adjust, easy to maintain, has a small transmission structure, occupies a small space, and has low power loss. It is equipped with an ear picking mechanism and a knife-throwing mechanism to meet the operational needs of returning the stalks to the field during the direct harvesting of corn grains. During the harvesting operation, the rotating knife can break the cut stalks and return them to the field, and the corn stalks can be guided during the returning process. Multiple functions can be achieved in one operation, which improves the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 It is a top view of the utility model;

[0021] Figure 4 It is a schematic diagram of the cooperation between the ear picking mechanism and the cutting platform mechanism of the utility model.

[0022] In the figure: 1. gear box; 2. cutting platform base plate; 3. cutting platform side frame; 4. straw sprocket; 5. straw tensioning wheel; 6. straw transmission chain; 7. straw baffle; 8. tensioning cylinder; 9. tensioning mounting base; 10. ear picking base; 11. ear picking roller; 12. ear picking end; 13. mounting base plate; 14. ear picking side plate; 15. guide base plate; 16. flail base; 17. flail base plate; 18. cutting flail; 19. flail end; 20. clutch. DETAILED DESCRIPTION

[0023] The present invention is described in further detail below with reference to the accompanying drawings.

[0024] A corn harvester with a fling knife structure comprises a gear box 1, which is arranged on a corn harvester, a harvesting platform mechanism for harvesting corn, an ear-picking mechanism for guiding corn ears, and a fling knife mechanism for breaking up corn stalks and returning them to the field. The harvesting platform mechanism is assembled on one side of the gear box 1, the ear-picking mechanism is arranged at the lower part of the end of the harvesting platform mechanism away from the gear box 1, and the fling knife mechanism is arranged at the lower side of the harvesting platform mechanism corresponding to the ear-picking mechanism. The overall structural diagram of the utility model is shown as follows Figure 1 shown.

[0025] Among them, the gear box 1 is provided with a reed-pulling shaft, a blade-flinging shaft and an ear-picking shaft. There are two groups of reed-pulling shafts and two groups of ear-picking shafts, and one group of blade-flinging shafts.

[0026] The harvesting mechanism includes a harvesting platform base plate 2, a harvesting platform side frame 3 and a straw assembly. The harvesting platform base plate 2 is arranged on one side of the gear box 1 and is fixedly connected to the gear box 1. The harvesting platform side frame 3 is arranged on the lower part of one side of the harvesting platform base plate 2 and is fixedly connected to the harvesting platform base plate 2. The straw assembly is assembled on the upper part of the harvesting platform base plate 2. The harvesting mechanism cooperates with the harvesting platform base plate 2, the harvesting platform side frame 3 and the straw assembly to form a harvesting platform structure for harvesting corn. The harvesting platform base plate 2 is used to provide mounting support for the straw assembly and the harvesting platform side frame 3. The harvesting platform side frame 3 is used to form a base structure together with the harvesting platform base plate 2, thereby providing mounting support for the straw assembly and the ear picking mechanism. The straw assembly is used to perform straw operations on corn to drive the corn crops to move along the harvesting platform base plate 2 during the corn harvesting process. The side view of the utility model is as shown in FIG. Figure 2 shown.

[0027] The plowing assembly includes a plowing sprocket 4, a plowing tensioning wheel 5, a plowing transmission chain 6 and a plowing baffle 7. The plowing sprocket 4 is arranged on the plowing shaft of the gear box 1 and is fixedly connected to the plowing shaft of the gear box 1. The plowing tensioning wheel 5 is arranged on the upper part of the end of the cutting platform base plate 2 away from the gear box 1 corresponding to the plowing sprocket 4 and is slidably connected to the cutting platform base plate 2. The plowing transmission chain 6 is arranged around the outside of the plowing sprocket 4 and the plowing tensioning wheel 5 and is meshed with the plowing sprocket 4 and the plowing tensioning wheel 5. The plowing tensioning wheel 5 is connected to the plowing sprocket 4 through the plowing transmission chain 6. The plowing baffle 7 is provided with several groups, and several groups of plowing baffles 7 are evenly spaced and arranged on the outside of the plowing transmission chain 6 and are fixedly connected to the plowing transmission chain 6 The plowing assembly cooperates with the plowing sprocket 4, the plowing tensioning wheel 5, the plowing transmission chain 6 and the plowing baffle 7 to plow the corn to drive the corn crops to move along the header base plate 2 during the corn harvesting process, thereby facilitating the picking and cutting operations of the corn crops. The plowing sprocket 4 is used to rotate under the action of the gear box 1, thereby cooperating with the plowing tensioning wheel 5 to drive the plowing transmission chain 6 to rotate, the plowing tensioning wheel 5 is used to tension the plowing transmission chain 6, and the plowing transmission chain 6 is used to provide installation support for the plowing baffle 7 and drive the plowing baffle 7 to rotate under the action of the plowing sprocket 4, thereby driving the corn crops to move along the header base plate 2 during the corn harvesting process. The top view of the utility model is shown as follows Figure 3 shown.

[0028] It also includes a tensioning cylinder 8 and a tensioning mounting base 9. The tensioning cylinder 8 is arranged at the middle part of the upper end of the cutting platform base plate 2 and is fixedly connected to the cutting platform base plate 2. The output end of the tensioning cylinder 8 is arranged toward the plowing tensioning wheel 5. The tensioning mounting base 9 is arranged at the output end of the tensioning cylinder 8 and is fixedly connected to the output end of the tensioning cylinder 8. The plowing tensioning wheel 5 is arranged at the upper part of the tensioning mounting base 9 and is rotatably connected to the tensioning mounting base 9 through a rotating shaft. The plowing tensioning wheel 5 is slidingly connected to the cutting platform base plate 2 through the tensioning mounting base 9. The tensioning cylinder 8 is used to provide mounting support for the tensioning mounting base 9 and drive the tensioning mounting base 9 to move through the telescopic action of its output end. The tensioning mounting base 9 is used to provide mounting support for the plowing tensioning wheel 5 and drive the plowing tensioning wheel 5 to move under the action of the tensioning cylinder 8 to perform tensioning operation on the plowing transmission chain 6.

[0029] The ear picking mechanism includes an ear picking base 10, an ear picking roller 11 and an ear picking end 12. The ear picking base 10 is arranged at the bottom of the cutting platform base plate 2 and is fixedly connected to the cutting platform base plate 2. The ear picking roller 11 is arranged at the end of the ear picking base 10 away from the gear box 1 and is connected to the ear picking shaft of the gear box 1 through a rotating shaft. The ear picking end 12 is arranged on the inner side of the end of the cutting platform side frame 3 away from the gear box 1 and is fixedly connected to the cutting platform side frame 3. The ear picking end 12 is rotatably connected to the end of the ear picking roller 11 away from the ear picking base 10 through a mounting frame. The ear picking mechanism is connected to the ear picking base 10, the ear picking roller 11 and the picking The ear end 12 cooperates with the ear picking operation to pick the ears of corn during the corn harvesting process, wherein the ear picking base 10 is used as a mounting structure at the bottom of the header base plate 2, thereby providing rotation support for the ear picking roller 11, and the ear picking roller 11 is used to rotate under the action of the gear box 1 to perform the ear picking operation on the corn during the corn harvesting process, and the ear picking end 12 is used as a mounting structure for the ear picking roller 11 away from one end of the ear picking base 10, thereby providing rotation support for the ear picking roller 11 to install the ear picking roller 11 at the bottom of the header base plate 2. The schematic diagram of the cooperation between the ear picking mechanism and the header mechanism of the utility model is shown in FIG. Figure 4 shown.

[0030] It also includes a guide assembly, which includes a mounting base 13, an ear-picking side plate 14 and a guide base 15. The mounting base 13 is arranged on the end of the cutting platform base 2 away from the gear box 1 and is fixedly connected to the cutting platform base 2. The ear-picking side plate 14 is arranged on the side of the mounting base 13 away from the cutting platform side frame 3 and is fixedly connected to the mounting base 13. The guide base 15 is arranged at the lower part of the mounting base 13 and is fixedly connected to the mounting base 13 by mounting bolts. The mounting base 13, the ear-picking side plate 14 and the guide base 15 together constitute a double-layer shovel-shaped guide structure. The cutting platform mechanism and the ear-picking mechanism are each provided with two groups, and the two groups of cutting platform mechanisms and the two groups of ear-picking mechanisms are symmetrically arranged on one side of the gear box 1 There is a distance between the two groups of cutting platform mechanisms and the two groups of ear picking mechanisms. The guide assembly cooperates with the mounting base 13, the ear picking side plate 14 and the guide base plate 15 to form a guide structure at the end of the cutting platform mechanism to guide the corn stalks during the corn harvesting process. The mounting base plate 13 is used to provide mounting support for the ear picking side plate 14 so as to mount the ear picking side plate 14 on the end of the cutting platform base plate 2. The ear picking side plate 14 is used to guide the corn crop during the corn picking process. The guide base plate 15 is used to guide the corn stalks during the corn stalk return to the field. The double-layer shovel-shaped guide structure can guide the corn crop throughout the corn harvesting process to improve the corn harvesting efficiency.

[0031] The blade-flinging mechanism includes a blade-flinging base 16, a blade-flinging base plate 17, a cutting blade-flinging blade 18 and a blade-flinging end 19. The blade-flinging base 16 is arranged at the bottom of one group of the cutting platform side frames 3 and is fixedly connected to the corresponding cutting platform side frames 3. The blade-flinging base plate 17 is arranged at the lower part of the blade-flinging base 16 and is connected to the blade-flinging shaft of the gear box 1 through a transmission shaft and a worm gear structure. There are two groups of cutting blades 18. The two groups of cutting blades 18 are relatively arranged at the two ends of the blade-flinging base plate 17 and are fixedly connected to the blade-flinging base plate 17. The blade-flinging end 19 is arranged at the bottom of the blade-flinging base plate 17 and is fixedly connected to the blade-flinging base plate 17. The blade-flinging base plate 17 is fixedly connected to the transmission shaft inside the blade-flinging base 16 through the blade-flinging end 19. The blade-flinging base 16 is arranged obliquely at the bottom of the cutting platform side frame 3. The blade-fling mechanism cooperates with the blade-fling base 16, the blade-fling base plate 17, the cutting blade-fling 18 and the blade-fling end 19 to meet the operational requirements of returning the stalks to the field during the direct harvesting of corn grains and to break the cut stalks back into the field during the harvesting operation. The blade-fling base 16 is used to provide mounting support for the transmission shaft and to provide rotation support for the blade-fling base plate 17 through the transmission shaft. The blade-fling base plate 17 is used to provide mounting support for the cutting blade-fling 18 so as to install the cutting blade-fling 18 at the lower part of the blade-fling base 16. The cutting blade-fling 18 is used to rotate under the drive of the blade-fling base plate 17 to meet the operational requirements of returning the stalks to the field during the direct harvesting of corn grains and to break the cut stalks back into the field during the harvesting operation. The blade-fling end 19 is used to install the blade-fling base plate 17 on the transmission shaft.

[0032] It also includes a clutch 20, which is arranged on one side of the cutting table side frame 3 at the connection between the transmission shaft and the worm gear structure. The clutch 20 is used to control the working state of the knife-flinging mechanism. The clutch 20 can be used to realize the engagement and disengagement between the transmission shaft in the knife-flinging mechanism and the knife-flinging shaft of the gear box 1. The clutch 20 can select the clutch 20 structure of the transmission system in the prior art.

[0033] Working principle:

[0034] When harvesting corn, the gearbox 1 rotates under the drive of the combine harvester, thereby driving the plowing shaft, the blade shaft and the ear picking shaft of the gearbox 1 to rotate, and the plowing shaft drives the plowing assembly to operate, and the two groups of plowing assemblies run relatively inward to send the corn stalks into between the two groups of cutting platform mechanisms. At the same time, the ear picking shaft drives the two groups of ear picking rollers 11 to rotate relatively to pull the corn stalks downward, and the plowing assembly further plows the corn stalks to achieve stalk separation. At the same time, the blade shaft drives the blade to work through the worm gear structure and the transmission shaft, thereby meeting the operational requirements of returning the stalks to the field during the direct harvesting of corn grains and breaking the cut stalks back to the field during the harvesting operation. During the field returning process, the guide assembly guides the stalks to improve the stalk returning efficiency of the corn harvester during the harvesting process, and the working state of the blade throwing mechanism can be controlled by the clutch 20 according to actual usage requirements to avoid overload of the gearbox 1.

[0035] The beneficial effect of the present invention is that a cutting platform mechanism is provided to cooperate with a knife-fling mechanism, both of which are driven by a gear box and the transmission structures of the two are integratedly arranged, which is easy to adjust, easy to maintain, has a small transmission structure, occupies a small space, and has a small power loss. The ear picking mechanism is provided to cooperate with the knife-fling mechanism, which can meet the operational needs of returning the stalks to the field during the direct harvesting of corn grains. During the harvesting operation, the rotating knife-fling mechanism can break up the cut stalks and return them to the field, and the corn stalks can be guided during the returning process. Multiple functions can be achieved in one operation, thereby improving the operating efficiency.

[0036] The above describes an embodiment of the present invention in detail. However, the content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A corn harvester with a flail structure, comprising a gear box (1), wherein the gear box (1) is arranged on a corn harvester, and is characterized in that: It also includes a cutting platform mechanism for harvesting corn, an ear-picking mechanism for guiding the corn ears, and a knife-throwing mechanism for breaking up the corn stalks and returning them to the field. The cutting platform mechanism is assembled on one side of the gear box (1), the ear-picking mechanism is arranged at the lower part of one end of the cutting platform mechanism away from the gear box (1), and the knife-throwing mechanism is arranged on one side of the lower part of the cutting platform mechanism corresponding to the ear-picking mechanism.

2. A corn harvesting stand with a flail structure as claimed in claim 1, characterized in that: The cutting platform mechanism comprises a cutting platform base plate (2), a cutting platform side frame (3) and a reed assembly, wherein the cutting platform base plate (2) is arranged on one side of the gear box (1) and is fixedly connected to the gear box (1), the cutting platform side frame (3) is arranged on the lower part of one side of the cutting platform base plate (2) and is fixedly connected to the cutting platform base plate (2), and the reed assembly is assembled on the upper part of the cutting platform base plate (2).

3. A corn harvesting stand with a fling knife structure as claimed in claim 2, characterized in that: The reeding assembly comprises a reeding sprocket (4), a reeding tensioning wheel (5), a reeding transmission chain (6) and a reeding baffle (7), wherein the reeding sprocket (4) is arranged on the reeding shaft of the gear box (1) and is fixedly connected to the reeding shaft of the gear box (1), the reeding tensioning wheel (5) is arranged on the upper part of one end of the cutting platform base plate (2) away from the gear box (1) corresponding to the reeding sprocket (4) and is slidably connected to the cutting platform base plate (2), and the reeding transmission chain (6) is arranged on the upper part of the cutting platform base plate (2) away from the gear box (1) corresponding to the reeding sprocket (4). ) is arranged around the outside of the reed sprocket (4) and the reed tensioning wheel (5) and is meshed with the reed sprocket (4) and the reed tensioning wheel (5); the reed tensioning wheel (5) is transmission-connected to the reed sprocket (4) through the reed transmission chain (6); the reed baffles (7) are provided in a plurality of groups; the plurality of groups of reed baffles (7) are evenly spaced and arranged on the outside of the reed transmission chain (6) and are fixedly connected to the reed transmission chain (6).

4. A corn harvesting stand with a flail structure as claimed in claim 3, characterized in that: The invention also includes a tensioning cylinder (8) and a tensioning mounting base (9), wherein the tensioning cylinder (8) is arranged at the middle of the upper end of the cutting platform base plate (2) and is fixedly connected to the cutting platform base plate (2), the output end of the tensioning cylinder (8) is arranged toward the reed tensioning wheel (5), the tensioning mounting base (9) is arranged at the output end of the tensioning cylinder (8) and is fixedly connected to the output end of the tensioning cylinder (8), the reed tensioning wheel (5) is arranged at the upper part of the tensioning mounting base (9) and is rotatably connected to the tensioning mounting base (9) through a rotating shaft, and the reed tensioning wheel (5) is slidably connected to the cutting platform base plate (2) through the tensioning mounting base (9).

5. The corn harvesting stand with a fling knife structure as claimed in claim 4, characterized in that: The ear picking mechanism comprises an ear picking base (10), an ear picking roller (11) and an ear picking end (12), wherein the ear picking base (10) is arranged at the bottom of the cutting platform base plate (2) and is fixedly connected to the cutting platform base plate (2), the ear picking roller (11) is arranged at one end of the ear picking base (10) away from the gear box (1) and is transmission-connected to the ear picking shaft of the gear box (1) through a rotating shaft, the ear picking end (12) is arranged on the inner side of one end of the cutting platform side frame (3) away from the gear box (1) and is fixedly connected to the cutting platform side frame (3), and the ear picking end (12) is rotationally connected to one end of the ear picking roller (11) away from the ear picking base (10) through a mounting frame.

6. A corn harvesting stand with a fling knife structure as claimed in claim 5, characterized in that: The invention also includes a guide assembly, which includes a mounting base (13), an ear-picking side plate (14) and a guide base (15). The mounting base (13) is arranged at one end of the cutting platform base (2) away from the gear box (1) and is fixedly connected to the cutting platform base (2). The ear-picking side plate (14) is arranged at one side of the mounting base (13) away from the cutting platform side frame (3) and is fixedly connected to the mounting base (13). The guide base (15) is arranged at the lower part of the mounting base (13) and is fixedly connected to the mounting base (13) by mounting bolts. The mounting base (13), the ear-picking side plate (14) and the guide base (15) together constitute a double-layer shovel-shaped guide structure.

7. A corn harvesting stand with a flail structure as claimed in claim 6, characterized in that: The cutting platform mechanism and the ear picking mechanism are both provided with two groups, and the two groups of cutting platform mechanism and the two groups of ear picking mechanism are symmetrically arranged on one side of the gear box (1), and a distance is left between the two groups of cutting platform mechanism and the two groups of ear picking mechanism.

8. The corn harvesting stand with a flail structure as claimed in claim 7, characterized in that: The blade-flinging mechanism comprises a blade-flinging base (16), a blade-flinging base plate (17), a cutting blade-flinging blade (18) and a blade-flinging end head (19). The blade-flinging base (16) is arranged at the bottom of one group of the cutting platform side frames (3) and is fixedly connected to the corresponding cutting platform side frames (3). The blade-flinging base plate (17) is arranged at the lower part of the blade-flinging base (16) and is connected to the blade-flinging shaft of the gear box (1) through a transmission shaft and a worm gear structure. The cutting blade-flinging blade (18) is provided with two groups. The two groups of cutting blades (18) are relatively arranged at the two ends of the blade-flinging base plate (17) and are fixedly connected to the blade-flinging base plate (17). The blade-flinging end head (19) is arranged at the bottom of the blade-flinging base plate (17) and is fixedly connected to the blade-flinging base plate (17). The blade-flinging base plate (17) is fixedly connected to the transmission shaft inside the blade-flinging base (16) through the blade-flinging end head (19).

9. A corn harvesting stand with a flail structure as claimed in claim 8, characterized in that: The blade-flinging base (16) is arranged obliquely at the bottom of the cutting platform side frame (3).

10. The corn harvesting stand with a fling knife structure according to claim 9, characterized in that: It also includes a clutch (20), and the clutch (20) is arranged on one side of the cutting platform side frame (3) corresponding to the connection between the transmission shaft and the worm gear structure.

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