A sugarcane harvester single drive header gearbox

Abstract

This utility model discloses a single-drive header gearbox for a sugarcane harvester, comprising: a housing, wherein an input shaft is provided within the housing, and first and second output shafts are meshed through idler gear shaft systems. Mechanical floating seals are installed at the output ends of the first and second output shafts. The housing contains one input shaft system, three idler gear shaft systems, and two output shaft systems. The fixed ring of the mechanical floating seal is mounted on a fixed oil seal seat, and the moving ring of the mechanical floating seal is mounted on a rotating oil seal seat. An adjusting sleeve is mounted on the output shaft, and its axial position is adjusted by screws to adjust the preload of the mechanical floating seal. The advantages of this sugarcane harvester header gearbox are: fewer bearings, lighter overall weight, convenient floating seal adjustment, smooth transmission, and long service life.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a single-drive header gearbox for a sugarcane harvester. Background Technology

[0002] With the advancement of agricultural modernization, the sugarcane planting area is constantly expanding. Manual sugarcane harvesting is labor-intensive, inefficient, and costly, and can no longer meet the needs of large-scale sugarcane production. Sugarcane harvesters, as key equipment for improving sugarcane harvesting efficiency, have been widely used. The gearbox, as a crucial transmission component of the sugarcane harvester, directly affects the harvester's working efficiency and reliability. Sugarcane stalks are tall and thick, requiring significant torque and power transmission during harvesting. Furthermore, the complex terrain of sugarcane fields, including slopes and wetlands, exposes harvesters to bumps and vibrations during operation. This necessitates that the gearbox possess excellent stability, impact resistance, and sealing to adapt to harsh working environments and ensure normal transmission under various conditions. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies, the purpose of this utility model is to provide a single-drive header gearbox for a sugarcane harvester.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A single-drive header gearbox for a sugarcane harvester includes: a housing, wherein an input shaft is provided with a first and a second output shaft meshed with an idler gear shaft system, and mechanical floating seals are installed at the output ends of the first and second output shafts.

[0006] The idler shaft system includes: a first idler shaft disposed between the input shaft and the second output shaft, and a second idler shaft and a third idler shaft disposed between the first output shaft and the second output shaft.

[0007] The first idler shaft, the second idler shaft, and the third idler shaft have the same structure. The first idler shaft is equipped with a first self-aligning roller bearing. A small idler wheel is installed on the first self-aligning roller bearing. An output gear that meshes with the small idler wheel is provided on the input shaft. An output gear that meshes with the small idler wheel is installed on the first output shaft. A large idler wheel that meshes with the output gear is installed on the second idler shaft.

[0008] Both the first and second output shafts are equipped with tapered roller bearings at their output ends.

[0009] The first and second output shafts are equipped with a fixed oil seal seat and a rotating oil seal seat at their output ends. The fixed oil seal seat is installed inside the output hole of the housing, and the rotating oil seal seat is installed on the output shaft. The mechanical floating seal fixed ring is installed on the fixed oil seal seat, and the mechanical floating seal moving ring is installed on the rotating oil seal seat.

[0010] There is a closed cavity between the two bearing seats at the bottom of the housing to increase the oil storage capacity of the housing.

[0011] A second self-aligning roller bearing is installed above the input shaft, and a cylindrical roller bearing is installed at the lower end.

[0012] Spacers for adjusting bearing clearance are installed on the first and second output shafts.

[0013] The first and second output shafts are equipped with splines at their output ends. The splines are connected to the output shafts and are axially pressed by round nuts.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model provides a single-drive header gearbox for a sugarcane harvester. The gearbox contains one input shaft system, three idler shaft systems, and two output shaft systems. A mechanical floating seal fixed ring is mounted on a fixed oil seal seat, and a mechanical floating seal moving ring is mounted on a rotating oil seal seat. An adjusting sleeve is mounted on the output shaft, and its axial position is adjusted by screws to adjust the preload of the mechanical floating seal. The advantages of this sugarcane harvester header gearbox are: fewer bearings, lighter overall weight, convenient floating seal adjustment, smooth transmission, and long service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the gearbox structure of the single-drive header of the sugarcane harvester of this utility model.

[0017] In the diagram, 1—box housing; 2—second output shaft; 3—rotary oil seal seat; 4—fixed oil seal seat; 5—adjusting sleeve; 6—mechanical floating seal; 7—tapered roller bearing; 8—spacer; 9—output gear; 10—third idler shaft; 11—large idler wheel; 12—first self-aligning roller bearing; 13—small idler wheel; 14—round nut; 15—screw; 16—second self-aligning roller bearing; 17—input shaft; 18—cylindrical roller bearing; 19—first output shaft; 20—first idler shaft; 21—second idler shaft. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0019] like Figure 1 As shown, a single-drive header gearbox for a sugarcane harvester includes: a housing 1, wherein an input shaft 17 is provided inside the housing 1, and a first and a second output shaft 19 and 2 are meshed through an idler gear shaft system, and a mechanical floating seal 6 is installed at the output end of the first output shaft 19 and the second output shaft 19 and 2.

[0020] Specifically, the idler shaft system includes: a first idler shaft 20 disposed between the input shaft 17 and the second output shaft 2, and a second idler shaft 21 and a third idler shaft 10 disposed between the first output shaft 19 and the second output shaft 2.

[0021] The first idler shaft 20, the second idler shaft 21, and the third idler shaft 10 have the same structure. The first idler shaft 20 is equipped with a first self-aligning roller bearing 12. A small idler wheel 13 is installed on the first self-aligning roller bearing 12. An output gear 171 that meshes with the small idler wheel 13 is provided on the input shaft 17. An output gear 9 that meshes with the small idler wheel 13 is installed on the first output shaft 19. A large idler wheel 11 that meshes with the output gear 171 is installed on the second idler shaft 21.

[0022] Both the first output shaft 19 and the second output shaft 2 are equipped with tapered roller bearings 7 at their output ends. A fixed oil seal seat 4 and a rotating oil seal seat 3 are installed at the output ends of the first output shaft 19 and the second output shaft 2, respectively. The fixed oil seal seat 4 is installed inside the output hole of the housing 1, and the rotating oil seal seat 3 is installed on the output shaft 2. The fixed ring of the mechanical floating seal 6 is installed on the fixed oil seal seat 4, and the moving ring of the mechanical floating seal 6 is installed on the rotating oil seal seat 3.

[0023] Preferably, a welded closed cavity 22 is provided between the two bearing seats at the bottom of the housing 1. Its function is to increase the internal volume of the housing 1 and increase the oil storage capacity. It also strengthens the connection rigidity between the two bearing seats of the housing 1.

[0024] A second self-aligning roller bearing 16 is mounted on the upper end of the input shaft 17, and a cylindrical roller bearing 18 is mounted on the lower end. Spacers 8 for adjusting bearing clearance are mounted on the first output shaft 19 and the second output shaft 2. Splines are mounted on the output ends of the first output shaft 19 and the second output shaft 2, and the splines are connected to the output shaft 2 and axially pressed by a round nut 14.

[0025] In the sugarcane harvester header box of this utility model, the box body 1 is integrally welded. Inside the box body 1 are installed one input shaft system, three idler wheel shaft systems, and two output shaft systems. The input shaft system is installed on the far right side of the box body, transmitting power to the right-side output shaft system via a small idler wheel shaft system. The right-side output shaft system meshes with two large idler wheel shaft systems, transmitting power to the left-side output shaft system. All three idler wheel shaft systems are supported by a single bearing 14. The two output shafts are supported by a pair of tapered roller bearings 7, sealed with a mechanical floating seal. The box body 1 is an integrally welded component, and an oil cavity with reinforcing ribs is designed between the two output bearing seats.

[0026] A self-aligning roller bearing 16 is installed above the input shaft 17, and a cylindrical roller bearing 18 is installed at the lower end. A self-aligning roller bearing 12 is installed in the inner hole of the small idler wheel 13, and it is installed into the housing 1 together with the idler shaft 10. A self-aligning roller bearing 12 is installed in the inner hole of each of the two large idler wheels 11, and they are installed into the housing 1 together with the idler shaft 10. The two output shafts 2 are supported by two tapered roller bearings 7, and the clearance of the two bearings is adjusted by a spacer 8. The output gear 9 is connected to the output shaft 2 by a spline and is axially pressed by a round nut 14. A fixed oil seal seat 4 is installed in the output hole of the housing 1, and a rotating oil seal seat 3 is installed on the output shaft 2. The fixed ring of the mechanical floating seal 6 is installed on the fixed oil seal seat 4, and the moving ring of the mechanical floating seal 6 is installed on the rotating oil seal seat 3. An adjusting sleeve 5 is installed on the output shaft 2, and its axial position is adjusted by a screw 15 to adjust the preload of the mechanical floating seal 6.

[0027] It will be apparent to those skilled in the art that the above specific examples are merely preferred embodiments of this utility model. Therefore, any improvements or modifications that those skilled in the art may make to certain parts of this utility model still embody the principles of this utility model and achieve its purpose, and all fall within the scope of protection of this utility model.

Claims

1. A single-drive header gearbox for a sugarcane harvester, characterized in that, include: The housing (1) is provided with an input shaft (17) and a first and second output shafts (19, 2) meshed on it via an idler wheel shaft system. The output ends of the first output shaft (19) and the second output shaft (2) are equipped with mechanical floating seals (6).

2. The single-drive header gearbox of the sugarcane harvester according to claim 1, characterized in that, The idler shaft system includes: a first idler shaft (20) disposed between the input shaft (17) and the second output shaft (2), and a second idler shaft (21) and a third idler shaft (10) disposed between the first output shaft (19) and the second output shaft (2).

3. The single-drive header gearbox of the sugarcane harvester according to claim 1, characterized in that, The first output shaft (19) and the second output shaft (2) are equipped with a fixed oil seal seat (4) and a rotating oil seal seat (3). The fixed oil seal seat (4) is installed in the output hole of the housing (1), and the rotating oil seal seat (3) is installed on the output shaft (2). The fixed ring of the mechanical floating seal (6) is installed on the fixed oil seal seat (4), and the moving ring of the mechanical floating seal (6) is installed on the rotating oil seal seat (3).

4. The single-drive header gearbox of the sugarcane harvester according to claim 1, characterized in that, The box (1) has a closed cavity (22) between the two bearing seats below it to increase the oil storage capacity of the box.

5. The single-drive header gearbox of the sugarcane harvester according to claim 3, characterized in that, A second self-aligning roller bearing (16) is installed above the input shaft (17), and a cylindrical roller bearing (18) is installed at the lower end.

6. The single-drive header gearbox of the sugarcane harvester according to claim 1, characterized in that, Spacers (8) for adjusting bearing clearance are installed on the first output shaft (19) and the second output shaft (2).

7. The single-drive header gearbox of the sugarcane harvester according to claim 1 or 5, characterized in that, The first output shaft (19) and the second output shaft (2) are equipped with splines at their output ends. The splines are connected to the output shaft (2) and are axially pressed by a round nut (14).

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