Transmission gear box for corn ear picking header

Abstract

The utility model discloses a transmission gear box for a corn ear picking header, which comprises a box body and a main shaft, the main shaft is arranged in the box body, and two ends of the main shaft penetrate through the box body. The clutch mechanism is used for protecting internal gears of the gearbox, the transmission mechanism is used for driving a header auger to rotate, the input mechanism is used for driving a header chain to rotate, the clutch mechanism is arranged in the middle of the main shaft, and the transmission mechanism is arranged on one side of the box body corresponding to the clutch mechanism. The gearbox has the advantages that the clutch mechanism is arranged, the limit torque and the working rotating speed can be set for the clutch mechanism, when the torque exceeds a set value, the interior of the clutch mechanism automatically slips, the input mechanism idles, the transmission mechanism does not rotate, and therefore gears in the gearbox are protected, and the service life of the gearbox is prolonged. The service life of the gearbox is prolonged, the use requirements of complex working conditions are met, multiple sets of transmission mechanisms are driven to work at the same time, and the transmission efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a transmission gear box for a corn ear picking and cutting platform. Background Art

[0002] In the prior art, a corn harvester is an agricultural machine that uses machinery to harvest corn stalks according to agronomic requirements when the corn is mature or nearly mature. It is a new type of agricultural machinery developed for the development of new energy and to reduce the labor intensity of farmers. It is an inexpensive agricultural machinery suitable for the popularization of small four-wheeled vehicles in rural areas, which can harvest corn stalks. It shortens the labor cycle of farmers and frees people from heavy physical labor. The header is the structure at the front end of the harvester for harvesting corn. The header is connected to the harvester through a gearbox. The corn harvester transmission gearbox is used to drive the chopper device when the corn harvester is working, so as to realize the chopping and returning of corn stalks to the field by the chopper. When the chopper transmission gearbox is combined with a high-strength corn harvester, the load will increase significantly. The two ordinary gears are used for transmission, and the efficiency is low. When the gearbox load is high, it is easy to exceed the gearbox's limit torque and operating speed, thereby causing damage to the gears in the transmission system.

[0003] Chinese utility model patent application number: 202223444455.1 discloses a corn harvesting platform gearbox, which relates to the field of corn harvesting equipment and includes a gearbox body. A second fixed disk for splicing with multiple devices is fixedly mounted on one side of the gearbox body. A plurality of splicing rods are fixedly mounted on the surface of the second fixed disk. A third fixed disk is fixedly mounted on the other side of the gearbox body. A plurality of splicing grooves are formed on the surface of the third fixed disk. The interior of the gearbox body has a vacuum structure. However, this corn harvesting platform gearbox structure is too simple, its transmission efficiency is low, and it lacks a protective structure, which cannot meet the requirements of use in complex working conditions. When the gearbox is highly loaded, it is easy to exceed the gearbox's limit torque and operating speed, which can easily damage the gears in the gearbox and reduce the gearbox's service life. Utility Model Content

[0004] The utility model aims to provide a transmission gear box for a corn ear picking and header.

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

[0006] A transmission gearbox for a corn ear picking and cutting platform comprises a box body and a main shaft. The main shaft is arranged inside the box body and its two ends pass through the box body. It also comprises a clutch mechanism for protecting the gears inside the gearbox, a transmission mechanism for driving the cutting platform auger to rotate, and an input mechanism for driving the cutting platform chain to rotate. The clutch mechanism is arranged in the middle of the main shaft, the transmission mechanism is configured on one side of the box body corresponding to the clutch mechanism, and the input mechanism is arranged on one end of the box body corresponding to the main shaft.

[0007] The clutch mechanism includes a clutch base, a mounting assembly and a clutch assembly. The clutch base is arranged inside one side of the box and is fixedly connected to the box. The clutch base is sleeved with the main shaft. The mounting assembly is assembled at the connection between the clutch base and the main shaft. The clutch assembly is arranged on the inner side of the mounting assembly and is located in the middle of the main shaft.

[0008] The mounting assembly includes mounting bearings and mounting sleeves. There are two groups of mounting bearings. The two groups of mounting bearings are symmetrically arranged on the inner side of the connection between the clutch base and the main shaft and are embedded in the clutch base. There are two groups of mounting sleeves. The two groups of mounting sleeves are symmetrically arranged on the inner side of the two groups of mounting bearings and are embedded in the corresponding mounting bearings. The mounting sleeves are sleeved with the main shaft.

[0009] It also includes a mounting snap ring, which is provided with two groups. The two groups of mounting snap rings are respectively arranged at the connection between the two groups of mounting bearings and the clutch base and are embedded in the clutch base. The mounting snap ring is arranged adjacent to the mounting bearing and is an arc-shaped snap ring structure with an opening.

[0010] The clutch assembly includes a clutch sleeve, a clutch gear and a clutch structure. The clutch sleeve is arranged between the two groups of mounting sleeves and is sleeved with the main shaft. The clutch sleeve is located in the middle of the main shaft and its inner wall is meshed with the main shaft. The clutch gear is sleeved on the outside of the clutch sleeve and is rotatably connected with the two groups of mounting sleeves. The clutch structure is provided with several groups, and the several groups of clutch structures are divided into two groups and arranged between the clutch sleeve and the clutch gear at intervals.

[0011] The clutch structure includes a mounting groove, a clutch spring, a clutch block and a clutch slot. The mounting groove is arranged on the outside of the clutch sleeve and the mounting groove is arranged as a truncated cone-shaped slot structure. The clutch spring is arranged inside the mounting groove and one end thereof abuts against the bottom of the mounting groove. The clutch block is arranged inside the mounting groove and one end thereof protrudes from the mounting groove. The outer wall of the clutch block is contoured with the inner wall of the mounting groove and abuts against the clutch spring. The clutch slot is arranged on the inner wall of the clutch gear corresponding to the clutch block. One end of the clutch block protrudes from the mounting groove and is engaged with the clutch slot.

[0012] The transmission mechanism includes a transmission bearing and a transmission gear shaft. The transmission bearing is arranged on one side of the housing corresponding to the clutch gear and is embedded in the housing. The transmission gear shaft is arranged on the inner side of the transmission bearing and is rotatably connected to the transmission bearing. The gear end of the transmission gear shaft is meshed with the clutch gear and its shaft end passes through the housing.

[0013] The input mechanism includes an input sleeve, an input bearing and an input gear shaft. The input sleeve is sleeved on the outside of the end of the main shaft and is keyed to the main shaft. The input sleeve is rotatably connected to the housing through a bearing. The input bearing is arranged on one side of the end of the housing corresponding to the input sleeve and is embedded in the housing. The input gear shaft is arranged on the inner side of the input bearing and is rotatably connected to the input bearing. The gear end of the transmission gear shaft is transmission-connected to the input sleeve through a gear and its shaft end passes through the housing.

[0014] There are two groups of transmission mechanisms, which are symmetrically arranged on both sides of the clutch gear and are connected to the clutch gear. There are two groups of input mechanisms, which are symmetrically arranged on one side of both ends of the box and are connected to the main shaft.

[0015] It also includes a knife-fling bearing and a knife-fling gear shaft. The transmission mechanism corresponding to the knife-fling bearing is arranged at one end of the box body and is embedded in the box body. The knife-fling gear shaft is arranged on the inner side of the knife-fling bearing and is rotatably connected to the knife-fling bearing. The gear end of the knife-fling gear shaft is connected to the input shaft sleeve through a gear and its shaft end passes through the box body.

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

[0017] It is equipped with a clutch mechanism, and the limit torque and operating speed can be set for the clutch mechanism. When the torque exceeds the set value, the clutch mechanism automatically slips, causing the input mechanism to idle and the transmission mechanism to stop rotating, thereby protecting the gears in the gearbox and extending the service life of the gearbox. It also meets the requirements of complex working conditions and can drive multiple transmission mechanisms to work at the same time, with high transmission 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 This is a cross-sectional view of the clutch mechanism and the housing of the utility model;

[0020] Figure 3 This is a schematic diagram of the cooperation between the installation component and the clutch base of the utility model;

[0021] Figure 4 This is a schematic diagram of the mounting structure of the clamping ring of the utility model;

[0022] Figure 5 This is a cross-sectional view of the clutch mechanism of the utility model;

[0023] Figure 6 This is a cross-sectional view of the clutch sleeve and clutch gear of the utility model;

[0024] Figure 7 It is a cross-sectional view of the input mechanism and the box body of the utility model.

[0025] In the figure: 1. Housing; 2. Main shaft; 3. Clutch base; 4. Mounting bearing; 5. Mounting sleeve; 6. Mounting snap ring; 7. Clutch sleeve; 8. Clutch gear; 9. Mounting slot; 10. Clutch spring; 11. Clutch block; 12. Clutch slot; 13. Transmission bearing; 14. Transmission gear shaft; 15. Input sleeve; 16. Input bearing; 17. Input gear shaft; 18. Fling knife bearing; 19. Fling knife gear shaft. DETAILED DESCRIPTION

[0026] The present invention is described in further detail below with reference to the accompanying drawings.

[0027] A transmission gearbox for a corn ear picking and cutting platform comprises a box body 1 and a main shaft 2. The main shaft 2 is arranged inside the box body 1 and its two ends pass through the box body 1. It also comprises a clutch mechanism for protecting the gears inside the gearbox, a transmission mechanism for driving the cutting platform auger to rotate, and an input mechanism for driving the cutting platform chain to rotate. The clutch mechanism is arranged in the middle of the main shaft 2, the transmission mechanism is configured on one side of the box body 1 corresponding to the clutch mechanism, and the input mechanism is arranged on one end of the box body 1 corresponding to the main shaft 2. The overall structural diagram of the utility model is shown as follows Figure 1 shown.

[0028] The clutch mechanism includes a clutch base 3, a mounting assembly and a clutch assembly. The clutch base 3 is arranged inside one side of the housing 1 and is fixedly connected to the housing 1. The clutch base 3 is sleeved on the main shaft 2, and the mounting assembly is assembled at the connection between the clutch base 3 and the main shaft 2. The clutch assembly is arranged on the inner side of the mounting assembly and is located in the middle of the main shaft 2. The clutch mechanism cooperates with the clutch base 3, the mounting assembly and the clutch assembly. When the torque exceeds the set value, the clutch mechanism automatically slips, causing the input mechanism to idle and the transmission mechanism to stop rotating, thereby protecting the gears in the gearbox. The clutch base 3 is used to provide an installation support for the mounting assembly and to install the mounting assembly on the main shaft 2. The mounting assembly is used to provide an installation support for the clutch assembly so as to assemble the clutch assembly with the clutch base 3. The clutch assembly is used to disconnect the connection between the main shaft 2 and the transmission mechanism when the main shaft 2 speed or torque exceeds the set value to protect the gears in the gearbox. The cross-sectional view of the clutch mechanism of the utility model and the housing 1 is shown in FIG. Figure 2 shown.

[0029] The mounting assembly includes a mounting bearing 4 and a mounting sleeve 5. There are two groups of mounting bearings 4. The two groups of mounting bearings 4 are symmetrically arranged on the inner side of the connection between the clutch base 3 and the main shaft 2 and are embedded in the clutch base 3. There are two groups of mounting sleeves 5. The two groups of mounting sleeves 5 are symmetrically arranged on the inner sides of the two groups of mounting bearings 4 and are embedded in the corresponding mounting bearings 4. The mounting sleeve 5 is sleeved on the main shaft 2. The mounting assembly cooperates with the mounting bearing 4 and the mounting sleeve 5 to provide mounting support for the clutch assembly so as to assemble the clutch assembly on the clutch base 3. The mounting bearing 4 is used to provide rotational support for the mounting sleeve 5 so as to rotatably install the mounting sleeve 5 on the clutch base 3. The mounting sleeve 5 is used to cooperate with the main shaft 2 and provide mounting support for the clutch gear 8. The schematic diagram of the cooperation between the mounting assembly of the utility model and the clutch base 3 is shown in FIG. Figure 3 shown.

[0030] It also includes a mounting snap ring 6, which is provided with two groups. The two groups of mounting snap rings 6 are respectively arranged at the connection between the two groups of mounting bearings 4 and the clutch base 3 and are embedded in the clutch base 3. The mounting snap ring 6 is arranged adjacent to the mounting bearing 4 and the mounting snap ring 6 is an arc-shaped snap ring structure with an opening, wherein the mounting snap ring 6 is used as a mounting structure on the clutch base 3 to improve the assembly stability between the mounting bearing 4 and the clutch base 3. The mounting snap ring 6 structure with an opening can meet the installation requirements of the clutch base 3. The schematic diagram of the mounting snap ring 6 structure of the utility model is shown in FIG. Figure 4 shown.

[0031] The clutch assembly includes a clutch sleeve 7, a clutch gear 8 and a clutch structure. The clutch sleeve 7 is arranged between the two sets of mounting sleeves 5 and is sleeved with the main shaft 2. The clutch sleeve 7 is located in the middle of the main shaft 2 and its inner wall is meshed with the main shaft 2. The clutch gear 8 is sleeved on the outside of the clutch sleeve 7 and is rotatably connected with the two sets of mounting sleeves 5. The clutch structure is provided with several groups. The several groups of clutch structures are divided into two groups and are arranged around the clutch sleeve 7 and the clutch gear 8. The clutch assembly is connected by the clutch sleeve 7 and the clutch gear. 8 and the clutch structure cooperate to realize the connection or disconnection between the transmission mechanism and the main shaft 2, wherein the clutch sleeve 7 is used to cooperate with the main shaft 2 and rotate under the action of the main shaft 2, and the clutch gear 8 is used to cooperate with or disconnect the clutch sleeve 7 under the action of the clutch structure. The clutch structure is used to realize the cooperation or disconnection between the clutch gear 8 and the clutch sleeve 7, that is, the clutch structure can change the cooperation state between the clutch gear 8 and the clutch sleeve 7 according to the speed or torque of the main shaft 2. The cross-sectional view of the clutch mechanism of the utility model is shown in FIG. Figure 5 shown.

[0032] The clutch structure includes a mounting groove 9, a clutch spring 10, a clutch card block 11 and a clutch card slot 12. The mounting groove 9 is arranged on the outside of the clutch sleeve 7 and the mounting groove 9 is arranged as a truncated cone-shaped groove structure. The clutch spring 10 is arranged inside the mounting groove 9 and one end thereof abuts against the bottom of the mounting groove 9. The clutch card block 11 is arranged inside the mounting groove 9 and one end thereof protrudes from the mounting groove 9. The outer wall of the clutch card block 11 is contoured with the inner wall of the mounting groove 9 and abuts against the clutch spring 10. The clutch card slot 12 corresponds to the clutch card The block 11 is arranged on the inner wall of the clutch gear 8, and one end of the clutch card block 11 protrudes from the mounting groove 9 and is engaged with the clutch card groove 12. The clutch structure cooperates with the mounting groove 9, the clutch spring 10, the clutch card block 11 and the clutch card groove 12 to change the matching state between the clutch gear 8 and the clutch sleeve 7 according to the speed or torque of the main shaft 2. Among them, the mounting groove 9 is used as a mounting structure on the clutch sleeve 7, thereby providing an installation space for the clutch spring 10 and the clutch card block 11. The clutch spring 10 is used to The clutch card block 11 provides elastic support to push one end of the clutch card block 11 out of the mounting groove 9. The clutch card block 11 is used to protrude from the mounting groove 9 under the action of the clutch spring 10 to cooperate with the clutch card slot 12 on the inner side of the clutch gear 8. The clutch card slot 12 is used as a card structure on the clutch gear 8 to cooperate with the end of the clutch card block 11 protruding from the mounting groove 9. The limit torque of the engagement between the clutch card block 11 and the clutch card slot 12 can be preset during production. Under normal working conditions, the clutch sleeve 7 is engaged by The clutch structure is engaged with the clutch gear 8, and the main shaft 2 drives the clutch gear 8 to rotate through the clutch sleeve 7, thereby driving the transmission mechanism to rotate. When the speed or torque of the main shaft 2 exceeds the set value, the clutch card slot 12 applies pressure to the clutch card block 11 to press the clutch card block 11 into the mounting slot 9, so that the clutch sleeve 7 and the clutch gear 8 are disengaged. That is, the main shaft 2 drives the clutch sleeve 7 to rotate, and the clutch gear 8 does not rotate, thereby preventing the transmission mechanism from rotating. The cross-sectional view of the clutch sleeve 7 and the clutch gear 8 of the utility model is shown in FIG. Figure 6 shown.

[0033] The transmission mechanism includes a transmission bearing 13 and a transmission gear shaft 14. The transmission bearing 13 is arranged on one side of the housing 1 corresponding to the clutch gear 8 and is embedded in the housing 1. The transmission gear shaft 14 is arranged on the inner side of the transmission bearing 13 and is rotatably connected to the transmission bearing 13. The gear end of the transmission gear shaft 14 is meshed with the clutch gear 8 and its shaft end passes through the housing 1. The transmission mechanism cooperates with the transmission bearing 13 and the transmission gear shaft 14 to form a transmission structure to drive the auger in the cutting table to rotate under the action of the main shaft 2, wherein the transmission bearing 13 is used to provide installation support for the transmission gear shaft 14 to install the transmission gear shaft 14 on the housing 1, and the transmission gear shaft 14 is used to be connected to the main shaft 2 through the clutch mechanism to drive the auger in the cutting table to rotate under the action of the main shaft 2.

[0034] The input mechanism includes an input sleeve 15, an input bearing 16 and an input gear shaft 17. The input sleeve 15 is sleeved on the outer side of the end of the main shaft 2 and is keyed to the main shaft 2. The input sleeve 15 is rotatably connected to the housing 1 through a bearing. The input bearing 16 is arranged on one side of the end of the housing 1 corresponding to the input sleeve 15 and is embedded in the housing 1. The input gear shaft 17 is arranged on the inner side of the input bearing 16 and is rotatably connected to the input bearing 16. The gear end of the transmission gear shaft 14 is transmission-connected to the input sleeve 15 through a gear and its shaft end passes through the housing 1. The input mechanism is connected to the input sleeve 15, the input bearing 16 and the input gear shaft 17. And the input gear shaft 17 cooperates to form an input structure to drive the input chain in the cutting table to rotate under the action of the main shaft 2, wherein the input shaft sleeve 15 is used as a shaft sleeve structure on the main shaft 2 to rotate with the main shaft 2 so as to provide input power to the input gear shaft 17 through the gear, and the input bearing 16 is used to provide mounting support for the input gear shaft 17 to install the input gear shaft 17 on the box body 1. The input gear shaft 17 is used to be connected to the main shaft 2 under the action of the input shaft sleeve 15 to drive the input chain in the cutting table to rotate under the action of the main shaft 2. The cross-sectional view of the input mechanism of the utility model cooperating with the box body 1 is shown as follows. Figure 7 shown.

[0035] There are two groups of transmission mechanisms, which are symmetrically arranged on both sides of the clutch gear 8 and are transmission-connected to the clutch gear 8. There are two groups of input mechanisms, which are symmetrically arranged on one side of both ends of the box body 1 and are transmission-connected to the main shaft 2.

[0036] It also includes a blade swing bearing 18 and a blade swing gear shaft 19. The corresponding transmission mechanism of the blade swing bearing 18 is arranged at one end of the box body 1 and is embedded in the box body 1. The blade swing gear shaft 19 is arranged on the inner side of the blade swing bearing 18 and is rotatably connected to the blade swing bearing 18. The gear end of the blade swing gear shaft 19 is connected to the input shaft sleeve 15 through a gear and its shaft end passes through the box body 1. The blade swing bearing 18 is used to provide installation support for the blade swing gear shaft 19, and the blade swing gear shaft 19 is used to rotate under the action of the main shaft 2, thereby providing power for the blade swing in the cutting table.

[0037] Working principle:

[0038] When in use, the gear box is installed on the combine harvester, the transmission mechanism is connected to the auger structure in the corn cutting table, the input mechanism is connected to the input chain structure in the corn cutting table, and the flinger gear shaft 19 is connected to the flinger structure in the corn cutting table. When working, the main shaft 2 rotates to drive the transmission mechanism, the input mechanism and the flinger gear shaft 19 to rotate, thereby driving the auger structure, the chain structure and the flinger structure to work. Under normal working conditions, the clutch sleeve 7 is engaged with the clutch gear 8 through the clutch structure, and the main shaft 2 drives the clutch gear 8 to rotate through the clutch sleeve 7, thereby driving the transmission mechanism to rotate, and then driving the auger. The auger structure works. When the speed or torque of the main shaft 2 exceeds the set value, the side wall of the clutch slot 12 applies pressure to the clutch block 11 to press the clutch block 11 into the mounting slot 9, so that the clutch sleeve 7 and the clutch gear 8 are disengaged. That is, the main shaft 2 drives the clutch sleeve 7 to rotate, and the clutch gear 8 does not rotate, thereby preventing the transmission mechanism from rotating. The auger structure does not work to protect the gear structure inside the gearbox from damage. The clutch mechanism can be set to a limit torque and an operating speed. When the torque exceeds the set value, the clutch automatically slips, causing the input mechanism to idle and the transmission mechanism to stop rotating, thereby protecting the gears in the gearbox.

[0039] The beneficial effect of the utility model is that a clutch mechanism is provided, and the limit torque and working speed of the clutch mechanism can be set. When the torque exceeds the set value, the clutch mechanism automatically slips, causing the input mechanism to idle and the transmission mechanism to stop rotating, thereby protecting the gears in the gearbox and extending the service life of the gearbox. It also meets the use requirements of complex working conditions, can drive multiple groups of transmission mechanisms to work at the same time, and has high transmission efficiency.

[0040] 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 transmission gearbox for a corn ear picking header, comprising a housing (1) and a main shaft (2), wherein the main shaft (2) is arranged inside the housing (1) and has both ends passing through the housing (1), characterized in that: It also includes a clutch mechanism for protecting the gears inside the gear box, a transmission mechanism for driving the cutting platform auger to rotate, and an input mechanism for driving the cutting platform chain to rotate. The clutch mechanism is arranged in the middle of the main shaft (2), the transmission mechanism is arranged on one side of the box body (1) corresponding to the clutch mechanism, and the input mechanism is arranged on one end of the box body (1) corresponding to the main shaft (2).

2. A transmission gear box for a corn ear removing header according to claim 1, characterized in that: The clutch mechanism comprises a clutch base (3), a mounting assembly and a clutch assembly. The clutch base (3) is arranged inside one side of the box body (1) and is fixedly connected to the box body (1). The clutch base (3) is sleeved with the main shaft (2). The mounting assembly is assembled at the connection between the clutch base (3) and the main shaft (2). The clutch assembly is arranged on the inner side of the mounting assembly and is located in the middle of the main shaft (2).

3. A transmission gear box for a corn ear removing header as claimed in claim 2, characterized in that: The mounting assembly includes mounting bearings (4) and mounting sleeves (5). The mounting bearings (4) are provided in two groups. The two groups of mounting bearings (4) are symmetrically arranged on the inner side of the connection between the clutch base (3) and the main shaft (2) and are embedded in the clutch base (3). The mounting sleeves (5) are provided in two groups. The two groups of mounting sleeves (5) are symmetrically arranged on the inner side of the two groups of mounting bearings (4) and are embedded in the corresponding mounting bearings (4). The mounting sleeves (5) are sleeved with the main shaft (2).

4. A transmission gear box for a corn ear picking header as claimed in claim 3, characterized in that: The invention also includes a mounting snap ring (6), wherein the mounting snap ring (6) is provided with two groups. The two groups of mounting snap rings (6) are respectively arranged at the connection between the two groups of mounting bearings (4) and the clutch base (3) and are embedded and connected with the clutch base (3). The mounting snap ring (6) is arranged adjacent to the mounting bearing (4) and the mounting snap ring (6) is an arc-shaped snap ring structure with an opening.

5. The transmission gear box for corn ear picking header according to claim 4, characterized in that: The clutch assembly comprises a clutch sleeve (7), a clutch gear (8) and a clutch structure. The clutch sleeve (7) is arranged between two groups of the mounting sleeves (5) and is sleeved with the main shaft (2). The clutch sleeve (7) is located in the middle of the main shaft (2) and its inner wall is meshed with the main shaft (2). The clutch gear (8) is sleeved on the outside of the clutch sleeve (7) and is rotatably connected with the two groups of the mounting sleeves (5). The clutch structure is provided with a plurality of groups, and the plurality of groups of clutch structures are divided into two groups and are arranged between the clutch sleeve (7) and the clutch gear (8) at intervals.

6. A transmission gear box for a corn ear removing header as claimed in claim 5, characterized in that: The clutch structure comprises a mounting groove (9), a clutch spring (10), a clutch card block (11) and a clutch card groove (12). The mounting groove (9) is arranged on the outside of the clutch sleeve (7) and the mounting groove (9) is arranged as a truncated cone-shaped groove body structure. The clutch spring (10) is arranged inside the mounting groove (9) and one end thereof abuts against the bottom of the mounting groove (9). The clutch card block (11) is arranged inside the mounting groove (9) and one end thereof protrudes from the mounting groove (9). The outer wall of the clutch card block (11) is arranged in a shape similar to the inner wall of the mounting groove (9) and abuts against the clutch spring (10). The clutch card groove (12) is arranged on the inner wall of the clutch gear (8) corresponding to the clutch card block (11). One end of the clutch card block (11) protruding from the mounting groove (9) is engaged with the clutch card groove (12).

7. A transmission gear box for a corn ear removing header as claimed in claim 6, characterized in that: The transmission mechanism includes a transmission bearing (13) and a transmission gear shaft (14); the transmission bearing (13) is arranged on one side of the housing (1) corresponding to the clutch gear (8) and is embedded in the housing (1); the transmission gear shaft (14) is arranged on the inner side of the transmission bearing (13) and is rotatably connected to the transmission bearing (13); the gear end of the transmission gear shaft (14) is meshed with the clutch gear (8) and the shaft end thereof passes through the housing (1).

8. The transmission gear box for a corn ear removing header according to claim 7, characterized in that: The input mechanism comprises an input shaft sleeve (15), an input bearing (16) and an input gear shaft (17). The input shaft sleeve (15) is sleeved on the outer side of the end of the main shaft (2) and is key-connected to the main shaft (2). The input shaft sleeve (15) is rotatably connected to the housing (1) through a bearing. The input bearing (16) is arranged on one side of the end of the housing (1) corresponding to the input shaft sleeve (15) and is embedded in the housing (1). The input gear shaft (17) is arranged on the inner side of the input bearing (16) and is rotatably connected to the input bearing (16). The gear end of the transmission gear shaft (14) is transmission-connected to the input shaft sleeve (15) through a gear, and its shaft end passes through the housing (1).

9. A transmission gear box for a corn ear removing header as claimed in claim 8, characterized in that: Two transmission mechanisms are provided, and the two transmission mechanisms are symmetrically arranged on both sides of the clutch gear (8) and are in transmission connection with the clutch gear (8). Two input mechanisms are provided, and the two input mechanisms are symmetrically arranged on one side of both ends of the box (1) and are in transmission connection with the main shaft (2).

10. The transmission gear box for a corn ear removing header according to claim 9, characterized in that: The invention also includes a fling knife bearing (18) and a fling knife gear shaft (19). The fling knife bearing (18) corresponds to a transmission mechanism and is arranged at one end of the housing (1) and is embedded in the housing (1). The fling knife gear shaft (19) is arranged on the inner side of the fling knife bearing (18) and is rotationally connected to the fling knife bearing (18). The gear end of the fling knife gear shaft (19) is transmission-connected to the input shaft sleeve (15) through a gear, and its shaft end passes through the housing (1).

Images