Corner gear box of grain harvester

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a reversing gear box of a grain unloading barrel of a grain harvester. Comprising a box body, an input shaft and an output shaft, the box body is provided with a first side face and a second side face, the input shaft is rotationally connected to the box body, one end of the input shaft penetrates out of the box body from the first side face and is connected with a chain wheel through a first fastener, and the output shaft is rotationally connected to the box body. One end of the output shaft penetrates out of the box body from the second side face and is connected with the spline housing through a second fastener, the gear box further comprises an input bevel gear and an output bevel gear, and the input bevel gear is connected to the input shaft in the box body; the output bevel gear is connected to an output shaft in the box body and meshed with the input bevel gear, a cavity is formed among the input bevel gear, the output bevel gear and the box body, and butter is arranged in the cavity. The utility model provides a reversing gear box of a grain unloading barrel of a grain harvester, which improves the lubricating effect of the gear box and reduces friction and abrasion.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely relates to a kind of kernel harvester corner gear box. BACKGROUND

[0002] In agricultural production machinery, kernel harvester plays a vital role, especially in crop harvesting and kernel collection link. Corner gear box as the core transmission component of kernel harvester, its performance directly affects the running efficiency and stability of the whole machine. In the design of traditional corner gear box, the connection mode of shaft and external transmission component has the problems of energy loss and low transmission efficiency. This is mainly due to the connection is not close or the friction of connecting component. In order to improve transmission efficiency and reduce energy loss in transmission process, it is necessary to improve the connection mode of corner gear box. SUMMARY

[0003] In view of the low transmission efficiency of the existing kernel harvester corner gear box and the large loss in transmission process, the purpose of the utility model is to provide a kind of kernel harvester corner gear box, reduce energy loss, improve transmission efficiency.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of kernel harvester corner gear box, including box, input shaft and output shaft, the first side surface and second side surface are equipped on the box, the input shaft is rotatably connected in the box, one end of the input shaft is from the first side surface and is connected with sprocket by first fastener outside the box, the output shaft is rotatably connected in the box, one end of the output shaft is from the second side surface and is connected with spline sleeve by second fastener outside the box, the gear box further includes input bevel gear and output bevel gear, the input bevel gear is connected on the input shaft inside the box, the output bevel gear is connected on the output shaft inside the box and is engaged with input bevel gear, the input bevel gear, output bevel gear and box form cavity, the cavity is equipped with butter.

[0005] In the technical scheme, the engagement mode of input bevel gear and output bevel gear ensures the stability and accuracy of power transmission. The butter filled in the cavity not only provides good lubrication effect, reduces the friction between gears, but also further reduces the loss of energy in transmission process, so that the gear box can more effectively utilize the input energy when running, reduces unnecessary dissipation. By optimizing the engagement and lubrication mode of gear, the corner gear box can more efficiently transmit the power of input shaft to output shaft, the close cooperation of input bevel gear and output bevel gear and the lubrication effect of butter jointly ensure the fluency and efficiency of transmission. In addition, the fastener firmly connects sprocket and spline sleeve on input shaft and output shaft, further enhances the stability and efficiency of transmission.

[0006] The utility model further provides for: the centre of chain wheel is equipped with first through -hole, first fastener passes through first through -hole and is connected with input shaft, to make chain wheel and input shaft fixed. Through setting first through -hole in the centre of chain wheel, and using first fastener to pass through the hole and connect with input shaft, realize the close fixing of chain wheel and input shaft, ensure the stability between chain wheel and input shaft, effectively prevent the looseness or relative movement that can appear in the working process. The stable connection makes chain wheel can more effectively transmit the power of input shaft, reduces the energy loss caused by looseness or sliding, helps to improve the overall transmission efficiency, ensures the accuracy and coherence of power transmission. The mode of fastener connection is also convenient for maintenance and replacement, when needing to disassemble or replace chain wheel, just loosen fastener to complete operation, need not complex disassembly steps or use special tools.

[0007] The utility model further provides for: the spline sleeve includes spline sleeve body and convex part, the convex part sets up in one side of spline sleeve body, the convex part and spline sleeve body are set in output shaft, be equipped with second through -hole on the side surface of convex part, second fastener passes through second through -hole and is connected with output shaft, to make spline sleeve and output shaft fixed. Through the design of spline sleeve body and convex part, and the connection of second fastener passing through the second through -hole on the side surface of convex part and output shaft, realize the firm fixing between spline sleeve and output shaft, ensure the stability between the two, can bear greater torque and work load, effectively prevent the looseness or relative rotation. The stable connection makes spline sleeve can accurately, efficiently transmit the power of output shaft. The close combination of convex part and spline sleeve body, and the additional fixing force provided by fastener, jointly ensure the coherence and reliability of power transmission, reduce the energy loss and efficiency drop in the transmission process. Simplify the assembly and maintenance process, when assembling, just set spline sleeve on the outside of output shaft, and fix through fastener, when maintaining or replacing, loosen fastener to easily disassemble spline sleeve, need not complex operation steps or special tools, improve work efficiency and convenience.

[0008] The utility model further provides for: be equipped with first box cover and second box cover on the box, first box cover set up on first side, second box cover set up on second side. Through setting box cover on two side faces of box, can effectively close gear box, prevent dust, moisture and other external pollutants from entering the inside of box, thereby protect inside gear and bearing and other key components from damage, significantly improve the sealing property of gear box and the service life of internal parts. The setting of box cover can also prevent personnel from directly contacting the moving parts inside gear box to a certain extent, reduce the security risks in the operation process, improve the safety of equipment use.

[0009] This invention is further configured such that: the housing is provided with a shell, the shell being a bent tube open at both ends, and the angle between the centerline of the input shaft and the centerline of the output shaft is an obtuse angle. By adopting the bent tube-shaped shell design, the angle gearbox can achieve angular transmission between the input and output shafts within a limited space, helping to reduce the overall equipment footprint and improve space utilization. The obtuse angle between the input and output shafts provides greater flexibility to the transmission system, adapting to different working scenarios and transmission requirements, allowing the harvester to adjust the transmission angle more flexibly during operation to adapt to various complex working environments. The bent tube-shaped shell not only has good structural strength but also provides sufficient rigid support, helping to reduce vibration and deformation during transmission, ensuring stable operation and a long service life of the gearbox.

[0010] This invention is further configured such that a dustproof plate is provided at the position where the output shaft exits the housing. This prevents external dust and debris from entering the gearbox. In the harvester's operating environment, there is often a large amount of dust and debris. The dustproof plate design can effectively block these pollutants, keep the inside of the gearbox clean, and thus reduce wear and malfunctions caused by pollutants.

[0011] This invention is further configured such that: a first outer skeleton oil seal is provided between the input shaft and the first housing cover, and a second outer skeleton oil seal is provided between the output shaft and the second housing cover. The outer skeleton oil seal significantly improves the sealing performance of the gearbox, effectively preventing lubricating oil leakage and ensuring that the oil inside the gearbox does not overflow, thereby maintaining the normal lubrication state of the gearbox and helping to reduce equipment failures and performance degradation caused by oil leakage. The oil seal not only prevents oil leakage but also effectively blocks external impurities and moisture from entering the gearbox. This protective function is crucial for maintaining the cleanliness and dryness of the internal parts of the gearbox, helping to extend the service life of the equipment.

[0012] This invention further comprises: a first bearing between the input shaft and the first housing cover, and a second bearing between the output shaft and the second housing cover; both the first and second bearings are filled with grease. By respectively setting the first and second bearings between the input shaft and the first housing cover, and between the output shaft and the second housing cover, stable support is provided for the rotating shaft, ensuring its stability and accuracy during high-speed rotation, and effectively reducing vibration and deviation. The placement of the first and second bearings reduces direct contact between the shaft and the housing cover, thereby reducing wear and extending the service life of the equipment. The grease filling the first and second bearings provides continuous lubrication. Grease not only reduces friction but also acts as a rust and corrosion inhibitor, further protecting the bearings.

[0013] The advantages of this invention are: the meshing method of the input bevel gear and the output bevel gear ensures the smoothness and accuracy of power transmission; the grease filling the cavity not only provides good lubrication and reduces friction between gears, but also further reduces energy loss during transmission, allowing the gearbox to utilize the input energy more effectively and reduce unnecessary dissipation. By optimizing the meshing and lubrication of the gears, the angle gearbox can more efficiently transmit the power from the input shaft to the output shaft. The tight fit between the input and output bevel gears, along with the lubrication of the grease, together ensure the smoothness and efficiency of the transmission. In addition, the fasteners firmly connect the sprocket and spline sleeve to the input and output shafts, further enhancing the stability and efficiency of the transmission. Attached Figure Description

[0014] Figure 1 This is an isometric view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the gearbox in one embodiment of the present invention.

[0016] In the diagram: 1. Housing; 11. First housing cover; 12. Second housing cover; 13. Housing shell; 2. Input shaft; 3. Cavity; 4. Input bevel gear; 5. Output bevel gear; 6. Output shaft; 71. Sprocket; 72. Spline sleeve; 721. Spline sleeve body; 722. Protrusion; 81. First outer skeleton oil seal; 82. Second outer skeleton oil seal; 91. First bearing; 92. Second bearing; 93. First fastener; 94. Second fastener. Detailed Implementation

[0017] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Example 1:

[0020] Reference Figure 1 , Figure 2A seed harvester corner gearbox comprises a box body 1, an input shaft 2 and an output shaft 6, the box body 1 is provided with a first side and a second side, the input shaft 2 is rotatably connected to the box body 1, one end of the input shaft 2 extends out of the box body 1 from the first side and is connected to a sprocket 71 through a first fastener 93, the output shaft 6 is rotatably connected to the box body 1, one end of the output shaft 6 extends out of the box body 1 from the second side and is connected to a spline sleeve 72 through a second fastener 94, the gearbox further comprises an input bevel gear 4 and an output bevel gear 5, the input bevel gear 4 is connected to the input shaft 2 inside the box body 1, the output bevel gear 5 is connected to the output shaft 6 inside the box body 1 and is engaged with the input bevel gear 4, a cavity 3 is formed between the input bevel gear 4, the output bevel gear 5 and the box body 1, and butter is provided in the cavity 3.

[0021] In this embodiment, the engagement mode of the input bevel gear 4 and the output bevel gear 5 ensures the stability and accuracy of power transmission. The butter filled in the cavity 3 not only provides good lubrication effect, reduces the friction between the gears, but also further reduces the energy loss in the transmission process, so that the gearbox can more effectively utilize the input energy when running, reducing unnecessary dissipation. By optimizing the engagement and lubrication of the gears, the corner gearbox can more efficiently transmit the power of the input shaft 2 to the output shaft 6. The close fit of the input bevel gear 4 and the output bevel gear 5, as well as the lubrication of the butter, together ensure the smoothness and efficiency of the transmission. In addition, the fasteners firmly connect the sprocket 71 and the spline sleeve 72 to the input shaft 2 and the output shaft 6, further enhancing the stability and efficiency of the transmission.

[0022] Preferably, the first fastener 93 and the second fastener 94 are both screws.

[0023] Reference Figure 1 The center of the sprocket 71 is provided with a first through hole, and the first fastener 93 is connected to the input shaft 2 through the first through hole to fix the sprocket 71 to the input shaft 2. By setting a first through hole in the center of the sprocket 71 and using a first fastener 93 to connect it to the input shaft 2, the sprocket 71 is firmly fixed to the input shaft 2, ensuring the stability between the sprocket 71 and the input shaft 2, effectively preventing loosening or relative movement that may occur during operation. Stable connection enables the sprocket 71 to more effectively transmit the power of the input shaft 2, reducing energy loss due to loosening or sliding, helping to improve overall transmission efficiency and ensure the accuracy and continuity of power transmission. The use of fasteners for connection also facilitates maintenance and replacement. When the sprocket 71 needs to be disassembled or replaced, it can be done by simply loosening the fasteners without the need for complex disassembly steps or special tools.

[0024] Reference Figure 1 , Figure 2The spline sleeve 72 includes a spline sleeve body 721 and a protruding portion 722, the protruding portion 722 is arranged on one side of the spline sleeve body 721, the protruding portion 722 and the spline sleeve body 721 are sleeved outside the output shaft 6, a second through hole is arranged on the side surface of the protruding portion 722, and the second fastener 94 is connected with the output shaft 6 through the second through hole to fix the spline sleeve 72 with the output shaft 6. Through the design of the spline sleeve body 721 and the protruding portion 722 and the connection of the second fastener 94 with the output shaft 6 through the second through hole in the side surface of the protruding portion 722, firm fixation between the spline sleeve 72 and the output shaft 6 is realized, the stability between the spline sleeve 72 and the output shaft 6 is ensured, the spline sleeve 72 can withstand greater torque and working load, and the situation of loosening or relative rotation is effectively prevented. The stable connection enables the spline sleeve 72 to accurately and efficiently transmit the power of the output shaft 6. The close combination of the protruding portion 722 and the spline sleeve body 721 and the additional fixing force provided by the fastener jointly ensure the continuity and reliability of power transmission, reduce energy loss and efficiency reduction in the transmission process. The assembly and maintenance process are simplified, in the assembly process, the spline sleeve 72 is only needed to be sleeved outside the output shaft 6 and fixed through the fastener; in the maintenance or replacement process, the spline sleeve 72 can be easily disassembled by loosening the fastener, without complex operation steps or special tools, and work efficiency and convenience are improved.

[0025] Preferably, the box body 1 is provided with a first box cover 11 and a second box cover 12, the first box cover 11 is arranged on the first side surface, and the second box cover 12 is arranged on the second side surface. By arranging the box covers on the two side surfaces of the box body 1, the gear box can be effectively closed, dust, moisture and other external pollutants are prevented from entering the inside of the box body 1, so that the internal gears, bearings and other key components are protected from damage, and the sealing performance of the gear box and the service life of the internal parts are significantly improved. The arrangement of the box cover can also prevent personnel from directly contacting the moving parts inside the gear box to a certain extent, reduces the safety hazards in the operation process, and improves the safety of the equipment use.

[0026] In an embodiment of the present application, reference is made to Figure 1 , Figure 2The box body 1 is provided with a box shell 13, the box shell 13 is a bent pipe with open ends, and the included angle between the center line of the input shaft 2 and the center line of the output shaft 6 is obtuse. By adopting the design of the box shell 13 in the shape of a bent pipe, the angle gear box can realize the transmission of the angle between the input shaft 2 and the output shaft 6 in a limited space, which helps to reduce the floor area of the overall equipment and improve the space utilization. The obtuse angle between the input shaft 2 and the output shaft 6 provides greater flexibility for the transmission system, which can adapt to different working scenes and transmission requirements, so that the harvester can adjust the transmission angle more flexibly during operation to adapt to various complex working environments. The box shell 13 in the shape of a bent pipe not only has good structural strength, but also can provide sufficient rigid support, which helps to reduce the vibration and deformation generated during transmission and ensures the stable operation and long service life of the gear box.

[0027] Preferably, referring to Figure 2 The position where the output shaft 6 penetrates out of the box shell 13 is provided with a dustproof plate. Preventing external dust, debris and the like from entering the inside of the gear box, in the working environment of the harvester, there are often a large amount of dust and debris, the design of the dustproof plate can effectively block these pollutants, keep the inside of the gear box clean, thereby reducing the wear and failure caused by the pollutants.

[0028] In an embodiment of the present application, referring to Figure 2 A first outer skeleton oil seal 81 is arranged between the input shaft 2 and the first box cover 11, and a second outer skeleton oil seal 82 is arranged between the output shaft 6 and the second box cover 12. The arrangement of the outer skeleton oil seal significantly improves the sealing performance of the gear box, effectively prevents the leakage of lubricating oil, ensures that the oil in the inside of the gear box does not overflow, thereby maintaining the normal lubrication state of the gear box, and helps to reduce the equipment failure and performance decline caused by oil leakage. The oil seal not only prevents oil leakage, but also effectively blocks external impurities and moisture and other pollutants from entering the inside of the gear box, which is crucial for maintaining the cleanliness and dryness of the internal parts of the gear box, and helps to prolong the service life of the equipment.

[0029] The first bearing 91 is arranged between the input shaft 2 and the first box cover 11, and the second bearing 92 is arranged between the output shaft 6 and the second box cover 12, and the first bearing 91 and the second bearing 92 are filled with butter. By arranging the first bearing 91 and the second bearing 92 between the input shaft 2 and the first box cover 11 and between the output shaft 6 and the second box cover 12, stable support is provided for the rotating shaft, ensuring the stability and precision of the shaft during high-speed rotation, effectively reducing vibration and deviation. The arrangement of the first bearing 91 and the second bearing 92 reduces the direct contact between the shaft and the box cover, thereby reducing wear and prolonging the service life of the equipment. By filling the first bearing 91 and the second bearing 92 with butter, continuous lubrication is provided for the bearings. Butter not only reduces friction, but also has the functions of rust prevention and corrosion prevention, further protecting the bearings.

[0030] The above embodiments are only used to further illustrate the utility model, and cannot be understood as limiting the protection scope of the utility model. The skilled in the art can make some non-essential improvements and adjustments to the utility model according to the content of the utility model, and these improvements and adjustments fall within the protection scope of the utility model.

Claims

1. A grain harvester corner gear box characterized by, The gear box comprises a box body, an input shaft and an output shaft, the box body is provided with a first side and a second side, the input shaft is rotatably connected to the box body, one end of the input shaft extends out of the box body from the first side and is connected to a chain wheel through a first fastener, the output shaft is rotatably connected to the box body, one end of the output shaft extends out of the box body from the second side and is connected to a spline sleeve through a second fastener, the gear box further comprises an input bevel gear and an output bevel gear, the input bevel gear is connected to the input shaft inside the box body, the output bevel gear is connected to the output shaft inside the box body and is engaged with the input bevel gear, a cavity is formed between the input bevel gear, the output bevel gear and the box body, and butter is arranged in the cavity.

2. A corner gearbox for a grain harvester as defined in claim 1, characterized in that The chain wheel is provided with a first through hole in the center, the first fastener passes through the first through hole and is connected to the input shaft, so that the chain wheel is fixed to the input shaft.

3. A corner gearbox for a grain harvester as defined in claim 2, characterized in that The spline sleeve comprises a spline sleeve body and a protruding part, the protruding part is arranged on one side of the spline sleeve body, the protruding part and the spline sleeve body are arranged outside the output shaft, the protruding part is provided with a second through hole on the side surface, the second fastener passes through the second through hole and is connected to the output shaft, so that the spline sleeve is fixed to the output shaft.

4. A corner gear box for a grain harvester as defined in claim 1, wherein, The box body is provided with a first box cover and a second box cover, the first box cover is arranged on the first side, and the second box cover is arranged on the second side.

5. A corner gear box for a grain harvester as defined in claim 2, wherein, The box body is provided with a box shell, the box shell is a bent pipe with two open ends, and the included angle between the center line of the input shaft and the center line of the output shaft is obtuse.

6. A corner gear box for a grain harvester as defined in claim 1, wherein, The output shaft is provided with a dustproof plate at the position extending out of the box shell.

7. A corner gear box for a grain harvester as defined in claim 4, wherein, A first outer frame oil seal is arranged between the input shaft and the first box cover, and a second outer frame oil seal is arranged between the output shaft and the second box cover.

8. A corner gearbox for a grain harvester as defined in claim 7, characterized in that A first bearing is arranged between the input shaft and the first box cover, and a second bearing is arranged between the output shaft and the second box cover, and butter is filled in the first bearing and the second bearing.

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