Two-section auger structure for corn ear picking header

Abstract

The utility model discloses a two-section type packing auger structure for a corn ear picking header, which comprises a packing auger mechanism forming the two-section type packing auger structure, a clutch mechanism used for carrying out overload protection on the packing auger mechanism and a connecting mechanism used as a packing auger connecting structure, and the packing auger mechanism is arranged on one side of the corn ear picking header. The double-section type auger structure has the advantages that the double-section type auger structure is simple, the auger mechanism is matched with the connecting mechanism, the two groups of augers are connected through the built-in connecting structure to form the double-section type auger structure, the double-section type auger structure is simple in structure, and the double-section type auger structure is convenient to use. The long-distance conveying requirement of the corn ear picking header can be met, the clutch mechanism is arranged, overload protection can be conducted on the auger mechanism, when input torque exceeds a set value, the interior of the clutch mechanism automatically slips, an input wheel idles, and an auger does not rotate, so that gears in the auger structure are protected, the auger structure is prevented from being integrally scrapped, and the harvesting progress is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a two-section auger structure for a corn ear picking and header. Background Art

[0002] In the prior art, a corn harvester is an agricultural machine that mechanically completes multiple operations of picking ears, piling, and returning stalks to the field at one time when the corn is ripe. The process is as follows: the corn is picked by a corn harvester while the corn is growing. Under the action of the picking roller and the picking plate, the ear stalk is pulled off. Due to the height difference between the inner and outer picking rollers, the ears fall into the ear box. The high-speed rotating cutter cuts off the stalks from the root and then enters the crushing mechanism to chop them into 3-5CM long pieces. After chopping, the stalks fall to the ground naturally. The existing corn picking and cutting platform is mainly composed of a corn picking device at the front end and a conveying auger at the rear end. The ear picking device consists of an ear picking frame and multiple sets of ear picking units arranged in parallel, which can achieve simultaneous ear picking of multiple ridges. The conveying auger transports the picked corn ears backwards. The conveying auger devices currently used are all single-axis structures, with two sprockets installed at one end. The outer sprocket receives power from the power source, and the inner sprocket outputs power to the ear picking box on the same side; a sprocket is installed at the other end to output power to the ear picking box on the same side. During field operations, the stem and ear harvesting model frequently adjusts the relative angles of the upper and lower cutting platforms to cope with temporary adjustments to different ear picking heights. This places high demands on the reliability of the conveying auger. However, the existing auger structure for corn ear picking headers lacks a protective structure. When its load is too high, that is, when its torque exceeds the auger's limit torque and operating speed, it will damage the gears in the transmission system, causing the auger structure to be scrapped as a whole, affecting the harvesting progress.

[0003] The Chinese utility model patent with application number: 202020171256.X discloses a composite auger conveying mechanism of a corn ear picking and harvesting platform, including an external conveying auger, an internal transmission shaft and a stand. The internal transmission shaft rotates coaxially with the external conveying auger. A power input sprocket and a first power output sprocket are fixedly mounted on the left exposed end of the internal transmission shaft. The power input sprocket is connected to the driving sprocket connected to the power source through a transmission chain, and the first power output sprocket is connected to the input sprocket of the left ear picking box through a transmission chain; a second power output sprocket is fixedly mounted on the right exposed end of the internal transmission shaft, which is connected to the input sprocket of the right ear picking box through a transmission chain; the right end of the external conveying auger is fixedly connected to the auger power input sprocket, which is connected to the output sprocket on the input shaft of the right ear picking box of the corn ear picking and harvesting platform through a transmission chain. However, the composite auger conveying mechanism of this corn ear harvesting platform lacks a protective structure. When its load is too high, that is, when its torque exceeds the auger's limit torque and operating speed, it will damage the gears in the transmission system, causing the entire auger structure to be scrapped, affecting the harvesting progress. Utility Model Content

[0004] The utility model aims to provide a two-section auger structure for a corn ear picking header.

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

[0006] A two-stage auger structure for a corn ear picking platform includes an auger mechanism constituting the two-stage auger structure, a clutch mechanism for overload protection of the auger mechanism, and a connecting mechanism for serving as an auger connecting structure. The auger mechanism is arranged on one side of the corn ear picking platform, the clutch mechanism is assembled at the connection between the auger mechanism and the corn ear picking platform, and the connecting mechanism is configured on the inner side of the auger mechanism.

[0007] The auger mechanism includes a conveying auger and an extended auger. The conveying auger is arranged on one side of the corn ear picking platform and one end of the conveying auger is connected to the gear box in the corn ear picking platform through a clutch mechanism. The extended auger is arranged at the end of the conveying auger away from the corn ear picking platform and is connected to the conveying auger through a connecting mechanism.

[0008] It also includes a toggle assembly, which includes a toggle base and a toggle plate. The toggle base is arranged on the side of one end of the conveying auger close to the extended auger and is fixedly connected to the conveying auger by screws. The toggle plate is arranged on one side of the toggle base and is fixedly connected to the toggle base by screws. There are two groups of toggle assemblies, and the two groups of toggle assemblies are staggered and arranged on both sides of the conveying auger.

[0009] The clutch mechanism includes a clutch base plate, a mounting end cover, a clutch assembly and a mounting assembly. The clutch base plate is arranged on one side of the corn picking platform corresponding to the conveying auger and is fixedly connected to the corn picking platform. The mounting end cover is arranged on the corn picking platform corresponding to the clutch base plate and is fixedly connected to the corn picking platform by screws. A gap is left between the mounting end cover and the clutch base plate so that they are clamped on the corn picking platform. The clutch assembly is assembled on the inner side of the mounting end cover. The mounting assembly is arranged on one end of the conveying auger close to the corn picking platform and is located on the outer side of the mounting end cover corresponding to the clutch assembly.

[0010] The clutch assembly includes a clutch shaft, a clutch sleeve, a clutch wheel and a clutch structure. The clutch shaft is arranged on the inner side of the mounting end cover and passes through the mounting end cover. The clutch shaft is rotatably connected to the mounting end cover through a bearing. The clutch sleeve is arranged at one end of the clutch shaft close to the clutch base plate and is key-connected to the clutch shaft. The clutch wheel sleeve is arranged on the outside of the clutch sleeve and is rotatably connected to the clutch base plate. The clutch wheel is transmission-connected to the gear box in the corn ear picking cutting table. The clutch structure is arranged between the clutch sleeve and the clutch wheel and the clutch sleeve is transmission-connected to the clutch wheel through the clutch structure. A bearing is provided between the clutch wheel and the end of the clutch sleeve close to the clutch base plate and the ends of both pass through the clutch base plate.

[0011] The clutch structure includes a mounting groove, a clutch spring, a clutch top block and a clutch card slot. The mounting groove is arranged on the side of the clutch sleeve, the clutch spring is arranged inside the mounting groove and one end of the clutch top block is abutted against the bottom of the mounting groove, the clutch top block is arranged in the mounting groove and the bottom of the clutch top block is abutted against one end of the clutch spring, part of the clutch top block protrudes from the mounting groove, the clutch card slot is arranged on the inner side of the clutch rotor corresponding to the clutch top block, the clutch top block is clamped with the clutch card slot, and a plurality of clutch structures are provided. The plurality of clutch structures are divided into three groups and arranged around and at intervals between the clutch sleeve and the clutch rotor.

[0012] The mounting assembly includes a mounting piece and a mounting sleeve, wherein the mounting piece is arranged at an end of the clutch shaft away from the clutch base plate and is fixedly connected to the clutch shaft, the mounting piece is located inside an end of the conveying auger close to the clutch base plate and is fixedly connected to the conveying auger, the mounting sleeve is arranged on the outside of an end of the conveying auger close to the clutch base plate and is socketed with the end of the conveying auger, and the mounting sleeve is located on the outside of the mounting end cover.

[0013] The connecting mechanism includes a connecting piece, a connecting shaft and a docking assembly. The connecting piece is provided with two groups, and the two groups of connecting pieces are respectively arranged inside the end where the conveying auger and the extended auger are close to each other and are fixedly connected to the corresponding conveying auger or the extended auger. The connecting shaft is provided with two groups, and the two groups of connecting shafts are respectively arranged in the middle of the two groups of connecting pieces and pass through the corresponding connecting pieces and are fixedly connected to the connecting pieces. The docking assembly is provided at the end portions where the two groups of connecting shafts are close to each other and the two groups of connecting shafts are connected through the docking assembly.

[0014] The docking assembly includes a docking end block, a docking collar and a docking spring. The docking end blocks are provided with two groups. The two groups of docking end blocks are respectively arranged at the ends of the two groups of connecting shafts close to each other and are sleeved with the corresponding connecting shafts. The opposite ends of the two groups of docking end blocks are clamped with each other. The docking collar is arranged at the middle of the connecting shaft close to the extended auger and is fixedly connected to the corresponding connecting shaft. The docking spring is arranged between the docking collar and the corresponding docking end block and the two ends of the docking spring are respectively abutted against the docking collar and the docking end block.

[0015] It also includes a docking cover shell and a docking mounting plate. The docking cover shell is provided with two groups. The two groups of docking cover shells are respectively arranged in the middle of the two groups of connecting shafts and are rotatably connected to the corresponding connecting shafts through bearings. The close ends of the two groups of docking cover shells are assembled and connected to each other through mounting shells. The docking mounting plates are provided with two groups. The two groups of docking mounting plates are arranged in a close fit at the connection between the two groups of docking cover shells and are fixedly connected to the docking cover shells through the mounting shells. The end of the docking mounting plate away from the docking cover shell is fixedly connected to the corn ear picking platform through bolts.

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

[0017] The structure is simple, with an auger mechanism and a connecting mechanism. The two sets of augers are connected by a built-in connecting structure to form a two-stage auger structure, which can meet the long-distance transportation needs of the corn picking and cutting platform. A clutch mechanism is provided to protect the auger mechanism from overload. When the input torque exceeds the set value, the clutch mechanism automatically slips inside, causing the input wheel to idle and the auger to stop rotating, thereby protecting the gears in the auger structure, avoiding the overall scrapping of the auger structure, and ensuring the harvesting progress. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the structure of the clutch mechanism of the utility model;

[0020] Figure 3 This is a cross-sectional view of the clutch mechanism of the utility model;

[0021] Figure 4 This is a cross-sectional view of the clutch sleeve and clutch wheel of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the connecting mechanism of the utility model;

[0023] Figure 6 It is a cross-sectional view of the connecting mechanism of the utility model.

[0024] In the figure: 1. Conveying auger; 2. Extended auger; 3. Toggle base; 4. Toggle plate; 5. Clutch base plate; 6. Mounting end cover; 7. Clutch shaft; 8. Clutch sleeve; 9. Clutch wheel; 10. Mounting slot; 11. Clutch spring; 12. Clutch top block; 13. Clutch slot; 14. Mounting part; 15. Mounting sleeve; 16. Connecting part; 17. Connecting shaft; 18. Docking end block; 19. Docking collar; 20. Docking spring; 21. Docking cover; 22. Docking mounting plate. DETAILED DESCRIPTION

[0025] The present invention is described in further detail below with reference to the accompanying drawings.

[0026] A two-stage auger structure for a corn ear picking header comprises an auger mechanism constituting the two-stage auger structure, a clutch mechanism for overload protection of the auger mechanism, and a connecting mechanism for serving as an auger connecting structure. The auger mechanism is arranged on one side of the corn ear picking header, the clutch mechanism is assembled at the connection between the auger mechanism and the corn ear picking header, and the connecting mechanism is arranged on the inner side of the auger mechanism. The overall structural diagram of the utility model is shown as follows Figure 1 shown.

[0027] The auger mechanism includes a conveying auger 1 and an extended auger 2. The conveying auger 1 is arranged on one side of the corn picking cutter and one end of the conveying auger is connected to the gear box in the corn picking cutter through a clutch mechanism. The extended auger 2 is arranged at the end of the conveying auger 1 away from the corn picking cutter and is connected to the conveying auger 1 through a connecting mechanism. The auger mechanism cooperates with the conveying auger 1 and the extended auger 2 to form a two-stage auger structure to meet the long-distance conveying requirements of the corn picking cutter, wherein the conveying auger 1 is used to rotate under the action of the gear box in the corn picking cutter, thereby driving the extended auger 2 to rotate, and the extended auger 2 is used to form a two-stage auger structure with the conveying auger 1 to meet the long-distance conveying requirements of the corn picking cutter.

[0028] It also includes a toggle assembly, which includes a toggle base 3 and a toggle plate 4. The toggle base 3 is arranged on the side of one end of the conveying auger 1 close to the extended auger 2 and is fixedly connected to the conveying auger 1 by screws. The toggle plate 4 is arranged on one side of the toggle base 3 and is fixedly connected to the toggle base 3 by screws. There are two groups of toggle assemblies, and the two groups of toggle assemblies are staggered and arranged on both sides of the conveying auger 1. The toggle assembly cooperates with the toggle base 3 and the toggle plate 4 to form a toggle structure in the auger to toggle the corn during the conveying process, thereby improving the conveying efficiency of the corn. The toggle base 3 is used as a mounting structure on the conveying auger 1 to provide mounting support for the toggle plate 4, and the toggle plate 4 is used to toggle the corn during the conveying process to improve the conveying efficiency of the corn.

[0029] The clutch mechanism includes a clutch base plate 5, an installation end cover 6, a clutch assembly and an installation assembly. The clutch base plate 5 corresponds to the conveying auger 1 and is arranged on one side of the corn picking header and is fixedly connected to the corn picking header. The installation end cover 6 corresponds to the clutch base plate 5 and is arranged on the corn picking header and is fixedly connected to the corn picking header by screws. A gap is left between the installation end cover 6 and the clutch base plate 5 so as to be clamped on the corn picking header. The clutch assembly is assembled on the inner side of the installation end cover 6. The installation assembly corresponds to the clutch assembly and is arranged at one end of the conveying auger 1 close to the corn picking header and is located on the outer side of the installation end cover 6. The clutch mechanism cooperates with the clutch base plate 5, the installation end cover 6, the clutch assembly and the installation assembly. When the torque exceeds the set When the value is set, the clutch mechanism automatically slips inside, causing the clutch wheel 9 to idle, and the clutch sleeve 8 and the clutch shaft 7 to stop rotating, thereby protecting the auger structure. The clutch base plate 5 is used as a mounting structure on the corn picking header, thereby providing mounting support for the clutch assembly. The mounting end cover 6 is used to cooperate with the clutch base plate 5 to install the clutch mechanism on the corn picking header and provide protective installation for the clutch assembly. The clutch assembly is used to disconnect the transmission cooperation between the clutch sleeve 8 and the clutch wheel 9 when the torque exceeds the set value, thereby protecting the auger structure. The mounting assembly is used as the mounting structure at the end of the conveying auger 1 to realize the installation connection between the clutch assembly and the conveying auger 1. The schematic diagram of the clutch mechanism structure of the utility model is shown in FIG. Figure 2 shown.

[0030] The clutch assembly includes a clutch shaft 7, a clutch sleeve 8, a clutch wheel 9 and a clutch structure. The clutch shaft 7 is arranged on the inner side of the mounting end cover 6 and passes through the mounting end cover 6. The clutch shaft 7 is rotatably connected to the mounting end cover 6 through a bearing. The clutch sleeve 8 is arranged on one end of the clutch shaft 7 close to the clutch base plate 5 and is key-connected to the clutch shaft 7. The clutch wheel 9 is sleeved on the outside of the clutch sleeve 8 and is rotatably connected to the clutch base plate 5. The clutch wheel 9 is transmission-connected to the gear box in the corn ear picking header. The clutch structure is arranged between the clutch sleeve 8 and the clutch wheel 9 and the clutch sleeve 8 is transmission-connected to the clutch wheel 9 through the clutch structure. A bearing is provided between the clutch wheel 9 and the end of the clutch sleeve 8 close to the clutch base plate 5 and the ends of the two pass through the clutch base plate 5. The clutch assembly is connected to the clutch shaft 7, the clutch sleeve 8, the clutch The clutch wheel 9 and the clutch structure cooperate. When the torque exceeds the set value, the transmission cooperation between the clutch sleeve 8 and the clutch wheel 9 is disconnected, thereby disconnecting the transmission connection between the gear box and the conveying auger 1 to avoid overload operation of the auger structure. The clutch shaft 7 is used to rotate with the clutch sleeve 8 to drive the conveying auger 1 to rotate through the installation assembly. The clutch sleeve 8 is used to drive the clutch shaft 7 to rotate under the action of the clutch wheel 9. The clutch wheel 9 is used to rotate under the action of the gear box in the corn picking and cutting table to drive the clutch sleeve 8 to rotate through the clutch structure. The clutch structure is used to achieve cooperation or disconnection between the clutch sleeve 8 and the clutch wheel 9, that is, the clutch structure can change the cooperation state between the clutch sleeve 8 and the clutch wheel 9 according to the speed or torque of the clutch wheel 9. The cross-sectional view of the clutch mechanism of the utility model is shown in FIG. Figure 3 shown.

[0031] The clutch structure includes a mounting groove 10, a clutch spring 11, a clutch top block 12 and a clutch card slot 13. The mounting groove 10 is arranged on the side of the clutch sleeve 8. The clutch spring 11 is arranged inside the mounting groove 10 and one end thereof abuts against the bottom of the mounting groove 10. The clutch top block 12 is arranged in the mounting groove 10 and the bottom thereof abuts against one end of the clutch spring 11. Part of the clutch top block 12 protrudes from the mounting groove 10. The clutch card slot 13 is arranged on the inner side of the clutch runner 9 corresponding to the clutch top block 12. The clutch top block 12 is engaged with the clutch card slot 13. There are several clutch structures, which are divided into three groups and arranged around the clutch sleeve 8 and the clutch wheel 9. The clutch structure cooperates with the mounting groove 10, the clutch spring 11, the clutch top block 12 and the clutch slot 13 to realize the connection or disconnection between the clutch sleeve 8 and the clutch wheel 9. Among them, the mounting groove 10 is used as the mounting structure on the clutch sleeve 8, thereby providing installation space for the clutch spring 11 and the clutch top block 12. The clutch spring 11 is used to provide elastic support for the clutch top block 12 to connect the clutch top block 12. One end of the block 12 is ejected from the mounting groove 10. The clutch top block 12 is used to protrude from the mounting groove 10 under the action of the clutch spring 11 to cooperate with the clutch card slot 13 on the inner side of the clutch runner 9. The clutch card slot 13 is used as a card structure on the clutch runner 9 to cooperate with the end of the clutch top block 12 protruding from the mounting groove 10. The limit torque of the coupling between the clutch top block 12 and the clutch card slot 13 can be preset during production. Under normal working conditions, the clutch sleeve 8 is engaged with the clutch runner 9 through the clutch structure, and the gear box drives the clutch runner 9 to rotate. The clutch sleeve 8 and the clutch shaft 7 are driven to rotate through the clutch structure, thereby driving the conveying auger 1 to rotate through the mounting assembly. When the speed or torque of the clutch wheel 9 exceeds the set value, the clutch slot 13 applies pressure to the clutch top block 12 to press the clutch top block 12 into the mounting slot 10, so that the clutch sleeve 8 and the clutch wheel 9 are disengaged from the matching state, that is, the gear box drives the clutch wheel 9 to rotate, the clutch sleeve 8 and the clutch shaft 7 do not rotate, so that the auger structure does not rotate. The cross-sectional view of the clutch sleeve 8 and the clutch wheel 9 of the utility model is shown in FIG. Figure 4 shown.

[0032] The mounting assembly includes a mounting piece 14 and a mounting sleeve 15. The mounting piece 14 is arranged at one end of the clutch shaft 7 away from the clutch base plate 5 and is fixedly connected to the clutch shaft 7. The mounting piece 14 is located inside the end of the conveying auger 1 close to the clutch base plate 5 and is fixedly connected to the conveying auger 1. The mounting sleeve 15 is arranged on the outside of the end of the conveying auger 1 close to the clutch base plate 5 and is sleeved with the end of the conveying auger 1. The mounting sleeve 15 is located on the outside of the mounting end cover 6. The mounting assembly cooperates with the mounting piece 14 and the mounting sleeve 15 to form a mounting structure at the end of the conveying auger 1 to realize the installation connection between the clutch assembly and the conveying auger 1, wherein the mounting piece 14 is used as a mounting connection structure between the clutch shaft 7 and the end of the conveying auger 1 to realize the installation connection between the clutch assembly and the conveying auger 1, and the mounting sleeve 15 is used as a set protective structure for the conveying auger 1 close to the clutch mechanism at one end, thereby protecting the clutch assembly.

[0033] The connecting mechanism includes a connecting piece 16, a connecting shaft 17 and a docking assembly. The connecting piece 16 is provided with two groups. The two groups of connecting pieces 16 are respectively arranged inside the end of the conveying auger 1 and the lengthened auger 2 close to each other and are fixedly connected to the corresponding conveying auger 1 or the lengthened auger 2. There are two groups of connecting shafts 17. The two groups of connecting shafts 17 are respectively arranged in the middle of the two groups of connecting pieces 16 and pass through the corresponding connecting pieces 16 and are fixedly connected to the connecting piece 16. The docking assembly is provided at the end of the two groups of connecting shafts 17 close to each other and the two groups of connecting shafts 17 are connected by the docking assembly. The connecting mechanism is connected by the connecting piece 16, the connecting shaft 1 7 and the docking assembly cooperate to form a built-in connecting structure to connect and assemble the conveying auger 1 and the extended auger 2, wherein the connecting piece 16 is used as a connecting structure at the proximal ends of the conveying auger 1 and the extended auger 2, thereby providing an installation support for the connecting shaft 17 to connect the connecting shaft 17 to the corresponding auger, and the connecting shaft 17 is used as a connecting structure on the connecting piece 16 to be connected to each other through the docking assembly. The docking assembly is used to assemble and connect the two sets of connecting shafts 17 to connect and assemble the conveying auger 1 and the extended auger 2 through the connecting piece 16. The schematic diagram of the connecting mechanism structure of the utility model is shown in FIG. Figure 5 shown.

[0034] The docking assembly includes a docking end block 18, a docking collar 19 and a docking spring 20. The docking end block 18 is provided with two groups. The two groups of docking end blocks 18 are respectively arranged at the ends of the two groups of connecting shafts 17 close to each other and are sleeved with the corresponding connecting shafts 17. The opposite ends of the two groups of docking end blocks 18 are clamped with each other. The docking collar 19 is arranged at the middle of the connecting shaft 17 close to the lengthened auger 2 and is fixedly connected to the corresponding connecting shaft 17. The docking spring 20 is arranged between the docking collar 19 and the corresponding docking end block 18 and the two ends of the docking spring 20 are respectively in contact with the docking collar 19 and the docking end block 18. The docking assembly is connected by the docking end block 18, the docking collar 19 and the docking end block 18. 9 and the docking spring 20 cooperate to realize the installation connection between the two groups of connecting shafts 17 and ensure the assembly stability between the two. Among them, the docking end block 18 is used as a docking structure between the opposite ends of the two groups of connecting shafts 17 and the two are buckled and connected with each other to realize the docking installation between the two groups of connecting shafts 17. The docking collar 19 is used as a mounting structure on the inner connecting shaft 17 of the lengthened auger 2, thereby providing installation support for the docking spring 20. The docking spring 20 is used to provide elastic support for the corresponding docking end block 18 under the action of the docking collar 19 to ensure the assembly stability between the two groups of docking end blocks 18. The cross-sectional view of the connection mechanism of the utility model is shown in FIG. Figure 6 shown.

[0035] It also includes a docking cover 21 and a docking mounting plate 22. The docking cover 21 is provided with two groups. The two groups of docking cover 21 are respectively arranged in the middle of the two groups of connecting shafts 17 and are rotatably connected to the corresponding connecting shafts 17 through bearings. The adjacent ends of the two groups of docking cover 21 are assembled and connected to each other through the mounting shell. There are two groups of docking mounting plates 22. The two groups of docking mounting plates 22 are arranged in a close fit at the connection of the two groups of docking cover 21 and are fixedly connected to the docking cover 21 through the mounting shell. The end of the docking mounting plate 22 away from the docking cover 21 is fixedly connected to the corn picking platform through bolts, wherein the docking cover 21 is used as a protective structure on the outside of the docking component and provides installation support for the docking mounting plate 22, and the docking mounting plate 22 is used as a mounting structure on the corn picking platform, thereby providing installation support for the connection between the conveying auger 1 and the extended auger 2 through the docking cover 21, thereby improving the stability of the connection between the two.

[0036] Working principle:

[0037] The conveying auger 1 is connected to the extended auger 2 through a connecting mechanism to form a two-stage auger structure. The auger structure is installed on the corn ear picking header through the clutch base plate 5 and the mounting end cover 6, and the gear box is connected to the clutch runner 9. When working, the gear box drives the clutch runner 9 to rotate, and the clutch runner 9 drives the clutch sleeve 8 and the clutch shaft 7 to rotate through the clutch structure. The clutch shaft 7 drives the auger structure to rotate through the mounting assembly, thereby realizing the long-distance transportation function during the corn harvesting process. During the working process, under normal working conditions, the clutch sleeve 8 is engaged through the clutch structure. It is engaged with the clutch wheel 9, and the gear box drives the clutch wheel 9 to rotate and drives the clutch sleeve 8 and the clutch shaft 7 to rotate through the clutch structure, thereby driving the conveying auger 1 to rotate through the mounting assembly. When the speed or torque of the clutch wheel 9 exceeds the set value, the clutch slot 13 applies pressure to the clutch top block 12 to press the clutch top block 12 into the mounting slot 10, so that the clutch sleeve 8 and the clutch wheel 9 are disengaged. That is, the gear box drives the clutch wheel 9 to rotate, and the clutch sleeve 8 and the clutch shaft 7 do not rotate, so that the auger structure does not rotate, and the auger structure is overloaded.

[0038] The beneficial effect of the utility model is that it has a simple structure, is equipped with an auger mechanism and a connecting mechanism, and two groups of augers are connected through a built-in connecting structure to form a two-stage auger structure, which can meet the long-distance transportation needs of the corn picking and cutting platform. A clutch mechanism is provided to protect the auger mechanism from overload. When the input torque exceeds the set value, the clutch mechanism automatically slips inside, causing the input wheel to idle and the auger to stop rotating, thereby protecting the gears in the auger structure, avoiding the overall scrapping of the auger structure, and ensuring the harvesting progress.

[0039] 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 two-stage auger structure for a corn ear harvesting platform, characterized in that: It includes an auger mechanism that constitutes a two-stage auger structure, a clutch mechanism for overload protection of the auger mechanism, and a connecting mechanism used as an auger connecting structure. The auger mechanism is arranged on one side of the corn ear picking platform, the clutch mechanism is assembled at the connection between the auger mechanism and the corn ear picking platform, and the connecting mechanism is configured on the inner side of the auger mechanism.

2. A two-stage auger structure for a corn ear picking header according to claim 1, characterized in that: The auger mechanism comprises a conveying auger (1) and an extended auger (2); the conveying auger (1) is arranged on one side of a corn ear picking platform and one end of the conveying auger is transmission-connected to a gear box in the corn ear picking platform via a clutch mechanism; the extended auger (2) is arranged on one end of the conveying auger (1) away from the corn ear picking platform and is connected to the conveying auger (1) via a connecting mechanism.

3. A two-stage auger structure for a corn ear picking header as claimed in claim 2, characterized in that: The invention also includes a toggle assembly, which includes a toggle base (3) and a toggle plate (4). The toggle base (3) is arranged on the side of one end of the conveying auger (1) close to the extended auger (2) and is fixedly connected to the conveying auger (1) by screws. The toggle plate (4) is arranged on one side of the toggle base (3) and is fixedly connected to the toggle base (3) by screws. Two groups of toggle assemblies are provided, and the two groups of toggle assemblies are staggered and arranged on both sides of the conveying auger (1).

4. A two-stage auger structure for a corn ear removing header as claimed in claim 3, characterized in that: The clutch mechanism comprises a clutch base plate (5), a mounting end cover (6), a clutch assembly and a mounting assembly, wherein the clutch base plate (5) is arranged on one side of a corn ear picking platform corresponding to the conveying auger (1) and is fixedly connected to the corn ear picking platform, the mounting end cover (6) is arranged on the corn ear picking platform corresponding to the clutch base plate (5) and is fixedly connected to the corn ear picking platform via screws, a gap is left between the mounting end cover (6) and the clutch base plate (5) so as to be clamped on the corn ear picking platform, the clutch assembly is assembled on the inner side of the mounting end cover (6), and the mounting assembly is arranged on one end of the conveying auger (1) close to the corn ear picking platform and is located on the outer side of the mounting end cover (6).

5. The two-stage auger structure for a corn ear picking header according to claim 4, characterized in that: The clutch assembly comprises a clutch shaft (7), a clutch sleeve (8), a clutch wheel (9) and a clutch structure. The clutch shaft (7) is arranged on the inner side of the mounting end cover (6) and passes through the mounting end cover (6). The clutch shaft (7) is rotatably connected to the mounting end cover (6) through a bearing. The clutch sleeve (8) is arranged on one end of the clutch shaft (7) close to the clutch base plate (5) and is key-connected to the clutch shaft (7). The clutch wheel (9) is sleeved on the clutch base plate (5). The clutch shaft sleeve (8) is arranged on the outside of the clutch shaft sleeve (8) and is rotationally connected to the clutch base plate (5); the clutch wheel (9) is transmission-connected to a gear box in a corn ear-picking cutting platform; a clutch structure is arranged between the clutch shaft sleeve (8) and the clutch wheel (9); and the clutch shaft sleeve (8) is transmission-connected to the clutch wheel (9) through the clutch structure; a bearing is provided between the clutch wheel (9) and the end of the clutch shaft sleeve (8) close to the clutch base plate (5), and the ends of the two pass through the clutch base plate (5).

6. A two-stage auger structure for a corn ear removing header according to claim 5, characterized in that: The clutch structure comprises a mounting groove (10), a clutch spring (11), a clutch top block (12) and a clutch card slot (13). The mounting groove (10) is arranged on the side of the clutch sleeve (8). The clutch spring (11) is arranged inside the mounting groove (10) and one end thereof abuts against the bottom of the mounting groove (10). The clutch top block (12) is arranged in the mounting groove (10) and the bottom thereof abuts against one end of the clutch spring (11). Part of the clutch top block (12) protrudes from the mounting groove (10). The clutch card slot (13) is arranged on the inner side of the clutch rotor (9) corresponding to the clutch top block (12). The clutch top block (12) is card-engaged with the clutch card slot (13). A plurality of clutch structures are provided. The plurality of clutch structures are divided into three groups and arranged around and spaced between the clutch sleeve (8) and the clutch rotor (9).

7. A two-stage auger structure for a corn ear removing header according to claim 6, characterized in that: The mounting assembly comprises a mounting member (14) and a mounting sleeve (15), wherein the mounting member (14) is arranged at one end of the clutch shaft (7) away from the clutch base plate (5) and is fixedly connected to the clutch shaft (7), the mounting member (14) is located inside one end of the conveying auger (1) close to the clutch base plate (5) and is fixedly connected to the conveying auger (1), the mounting sleeve (15) is arranged outside one end of the conveying auger (1) close to the clutch base plate (5) and is sleeved with the end of the conveying auger (1), and the mounting sleeve (15) is located outside the mounting end cover (6).

8. The two-stage auger structure for a corn ear removing header according to claim 7, characterized in that: The connecting mechanism comprises a connecting piece (16), a connecting shaft (17) and a docking assembly. The connecting piece (16) is provided with two groups. The two groups of connecting pieces (16) are respectively arranged inside one end of the conveying auger (1) and the extended auger (2) close to each other and are fixedly connected to the corresponding conveying auger (1) or the extended auger (2). The connecting shaft (17) is provided with two groups. The two groups of connecting shafts (17) are respectively arranged in the middle of the two groups of connecting pieces (16) and pass through the corresponding connecting pieces (16) and are fixedly connected to the connecting pieces (16). The docking assembly is provided at the ends of the two groups of connecting shafts (17) close to each other and the two groups of connecting shafts (17) are connected through the docking assembly.

9. A two-stage auger structure for a corn ear removing header according to claim 8, characterized in that: The docking assembly comprises a docking end block (18), a docking collar (19) and a docking spring (20). The docking end block (18) is provided with two groups. The two groups of docking end blocks (18) are respectively arranged at the ends of the two groups of connecting shafts (17) close to each other and are sleeved with the corresponding connecting shafts (17). The opposite ends of the two groups of docking end blocks (18) are clamped with each other. The docking collar (19) is arranged at the middle of the connecting shaft (17) close to the extended auger (2) and is fixedly connected to the corresponding connecting shaft (17). The docking spring (20) is arranged between the docking collar (19) and the corresponding docking end block (18), and the two ends of the docking spring (20) are respectively in contact with the docking collar (19) and the docking end block (18).

10. The two-stage auger structure for a corn ear removing header according to claim 9, characterized in that: It also includes a docking cover (21) and a docking mounting plate (22), wherein the docking cover (21) is provided with two groups, and the two groups of the docking cover (21) are respectively arranged at the middle of the two groups of the connecting shafts (17) and are rotatably connected to the corresponding connecting shafts (17) through bearings, and the ends of the two groups of the docking cover (21) that are close to each other are assembled and connected to each other through the mounting shell, and the docking mounting plate (22) is provided with two groups, and the two groups of the docking mounting plates (22) are arranged at the connection of the two groups of the docking cover (21) and are fixedly connected to the docking cover (21) through the mounting shell, and the end of the docking mounting plate (22) away from the docking cover (21) is fixedly connected to the corn ear cutting platform through bolts.

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