Reversing 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 harvester. Comprising a box body, and the box body is provided with a first side face and a second side face which are adjacently arranged; the first box cover is convexly arranged on the first side surface of the box body; the second box cover is convexly arranged on the second side surface of the box body; the input shaft is in transmission connection with the output shaft, the input shaft and the output shaft are perpendicularly arranged, a first connecting frame and a second connecting frame are symmetrically arranged on the two sides of the second box cover, the first connecting frame is provided with a first extending edge, and the second connecting frame is provided with a second extending edge parallel to the first extending edge. The included angle between the connecting line of the first extending edge and the second extending edge and the input shaft is an acute angle. The utility model provides a reversing gear box of a grain harvester. The structural stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely relates to a grain harvester reversing gear box. BACKGROUND

[0002] In agricultural production, the grain harvester is the key agricultural equipment, and its performance directly affects the harvesting efficiency and quality of crops. As the core transmission component of the grain harvester, the reversing gear box has a crucial influence on the stability and working efficiency of the whole machine. The traditional gear box design often focuses on transmission efficiency and carrying capacity, but there are deficiencies in structural stability, stress distribution, space utilization and vibration and noise reduction. Especially in the high-strength and long-time working environment, the traditional gear box may have problems such as shaking, stress concentration, insufficient structural compactness and large vibration and noise, which seriously affect the service life and operation comfort of the agricultural machine. SUMMARY

[0003] In view of the poor structural stability of the existing grain harvester reversing gear box, the utility model aims to provide a grain harvester reversing gear box to improve the structural stability.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a grain harvester reversing gear box, comprising:

[0005] A box body is provided with a first side and a second side arranged adjacent to each other;

[0006] A first cover is protrudingly arranged on the first side of the box body;

[0007] A second cover is protrudingly arranged on the second side of the box body;

[0008] An input shaft is rotatably connected to the box body, one end of the input shaft extends out of the first cover to the outside of the box body for input power; an output shaft is rotatably connected to the box body, one end of the output shaft extends out of the second cover to the outside of the box body for output power; the input shaft and the output shaft are in transmission connection, the input shaft and the output shaft are arranged vertically, the second cover is provided with a first connecting frame and a second connecting frame arranged symmetrically on both sides, the first connecting frame is provided with a first extension edge, the second connecting frame is provided with a second extension edge parallel to the first extension edge, and the included angle between the first extension edge and the second extension edge and the input shaft is an acute angle.

[0009] In the technical solution, the convex design of the first box cover and the second box cover optimizes the space layout of the box body, so that the input shaft and the output shaft can be more stably installed on the box body, while ensuring the smooth passing of the shaft end, facilitating the input and output of power, improving the transmission efficiency, and making the overall structure more compact and reasonable. Through the design of the first connecting frame and the second connecting frame on both sides of the second box cover, the structural rigidity of the box body is further enhanced. By setting the line connecting the first extension edge and the second extension edge to be arranged at an acute angle with the input shaft, this non-parallel structure can increase the stability of the gear box as a whole, which helps to disperse stress and vibration during machine operation, reduces structural deformation or damage caused by single direction stress, helps to more reasonably utilize the internal space of the gear box, avoids interference with other components, and ensures smooth operation of key components such as the input shaft and the output shaft.

[0010] The utility model further sets up further: the gear box still includes input bevel gear and output bevel gear, the input bevel gear is connected on the input shaft inside the box body, the output bevel gear is connected on the output shaft inside the box body and is engaged with input bevel gear. Input bevel gear receives the power input of counterclockwise, and through the engagement with the output bevel gear, the power is exported in clockwise direction, effectively realizes the power reversing, satisfies the demand of harvester under different working scene. In the limited box body space, through the reasonable arrangement input bevel gear and output bevel gear, realize the smooth reversing and efficient transmission of power, not only save the space, but also improve the overall performance and reliability of the gear box, embody the ingenuity and practicality of design.

[0011] The utility model further sets up further: still be equipped with top cover on the box body, the top cover, first box cover and second box cover are two by two adjacent, be equipped with oil pipe joint on the top cover. Top cover and first box cover and second box cover are two by two adjacent, each part is closely connected, constitutes a stable whole, helps to promote the stability and durability of gear box. Oil pipe joint can conveniently connect external oil pipe, be used for adding or replacing lubricating oil, thereby maintaining the good running state of gear box, reduces the operation difficulty and time cost in the maintenance process.

[0012] The utility model further provides: first outer skeleton oil seal is equipped between the input shaft and first box cover, second outer skeleton oil seal is equipped between the output shaft and second box cover. Outer skeleton oil seal provides the sealing effect, effectively prevents the lubricating oil from the clearance between the shaft and the box cover leakage, ensures the lubricating oil amount inside the gear box keeps stable, thereby maintains the good lubrication state of gear and bearing etc. parts. Outer skeleton oil seal not only prevents the leakage of oil, more importantly, it can also effectively block the dust, impurities, moisture and other pollutants in the external environment from entering the gear box inside, this function is crucial for protecting the precision parts inside the gear box, avoids the wear and tear and failure caused by pollutants. By preventing lubricating oil leakage and external pollutants intrusion, outer skeleton oil seal provides a clean, lubrication good working environment for the key components inside the gear box (such as gears and bearings), significantly prolongs the service life of these components, reduces the frequency of maintenance and replacement.

[0013] The utility model further provides: the gear box further includes first box side, first box side with first box cover opposite setting, second box side is equipped between first box side and top cover.

[0014] The utility model further provides: the included angle between second box side and first box side, top cover is obtuse angle. By setting the included angle between second box side and first box side, top cover as obtuse angle, the structural stability of gear box is enhanced significantly, and the obtuse angle structure can provide better support and strength, reduce the vibration and deformation that can be produced in the mechanical operation process, so as to ensure that the gear box can work more stably.

[0015] The utility model further provides: first lengthening rod is equipped on second box side, and the one end of first lengthening rod away from the box body is equipped with internal thread straight pipe joint. First lengthening rod replaces the traditional breather valve, and the air pressure inside and outside the gear box is more effectively balanced, so that the gear box can avoid the problems caused by the difference between the internal and external air pressure during the operation process, such as oil leakage, gas accumulation, etc., thereby ensuring the stable operation of the gear box. At the same time, the internal thread straight pipe joint is installed on the one end of first lengthening rod away from the box body, which reduces the operation difficulty in the maintenance process.

[0016] The utility model further provides: the gear box further includes third box side, and third box side with top cover opposite setting. The setting of third box side makes the structure of gear box more complete and stable, and third box side and top cover are oppositely arranged, which jointly constitute the closed space of the gear box, effectively protecting the internal gears and transmission mechanism.

[0017] The utility model further sets up: second lengthened rod is equipped on third box side, the one end of second lengthened rod away from the box body is equipped with outer hexagonal internal thread plug. Through second lengthened rod, the lubricating oil in gear box can be discharged more conveniently and more quickly, thereby simplifying maintenance process, improve the efficiency of oil operation. Besides, the one end of second lengthened rod away from the box body is equipped with outer hexagonal internal thread plug, this plug design not only provides a convenient, firm and easy to operate mode for the connection of external equipment or pipeline, but also greatly facilitates the future disassembly and maintenance. The design of outer hexagonal internal thread plug further enhances the stability of connection, and its hexagonal shape enables the operator to exert better tightening torque, ensuring the reliability of connection and effectively preventing the safety problems that may be caused by loosening.

[0018] The utility model has the advantages of: (1) the line of the first extension edge and the second extension edge is arranged at an acute angle with the input shaft, and this non-parallel structure can increase the stability of the gear box as a whole, and during the operation of the machine, this layout helps to disperse stress and vibration, reduces structural deformation or damage caused by stress in a single direction, helps to more reasonably utilize the internal space of the gear box, avoids interference with other components, and ensures smooth operation of key components such as the input shaft and the output shaft. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a perspective view of the utility model;

[0020] Fig. 2 It is a front view of the gear box in one embodiment of the utility model;

[0021] Fig. 3 It is a sectional view of the gear box in one embodiment of the utility model.

[0022] In the figure: 1, box body; 11, first box cover; 12, second box cover; 13, third box side; 131, second lengthened rod; 132, outer hexagonal internal thread plug; 14, top cover; 141, oil pipe joint; 15, first box side; 16, second box side; 161, first lengthened rod; 162, internal thread straight-through pipe joint; 2, input shaft; 31, first connecting frame; 311, first extension edge; 32, second connecting frame; 321, second extension edge; 4, input bevel gear; 5, output bevel gear; 6, output shaft. DETAILED DESCRIPTION

[0023] In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present utility model. In addition, as the terms "first", "second", "third" appear, they are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] The present utility model is further illustrated below in conjunction with the drawings of the specification.

[0025] Embodiment 1

[0026] With reference to Figs. 1-3 A seed harvester reversing gear box, comprising:

[0027] A box body 1, the box body 1 is provided with a first side and a second side arranged adjacently;

[0028] A first box cover 11 is protrusively arranged on the first side of the box body 1;

[0029] A second box cover 12 is protrusively arranged on the second side of the box body 1;

[0030] An input shaft 2 is rotatably connected to the box body 1, one end of the input shaft 2 is led out from the first box cover 11 to the outside of the box body 1 for inputting power;

[0031] An output shaft 6 is rotatably connected to the box body 1, one end of the output shaft 6 is led out from the second box cover 12 to the outside of the box body 1 for outputting power; the input shaft 2 and the output shaft 6 are in transmission connection, the input shaft 2 and the output shaft 6 are arranged vertically, the two sides of the second box cover 12 are provided with a first connecting frame 31 and a second connecting frame 32 arranged symmetrically, the first connecting frame 31 is provided with a first extension edge 311, the second connecting frame 32 is provided with a second extension edge 321 parallel to the first extension edge 311, the included angle between the first extension edge 311 and the second extension edge 321 and the input shaft 2 is an acute angle.

[0032] In this embodiment, the convex design of the first cover 11 and the second cover 12 optimizes the space layout of the gearbox 1, enabling the input shaft 2 and the output shaft 6 to be more stably mounted on the gearbox 1, while ensuring the smooth passage of the shaft ends, facilitating the input and output of power, not only improving the transmission efficiency, but also making the overall structure more compact and reasonable. Through the design of the first connecting frame 31 and the second connecting frame 32 on both sides of the second cover 12, the structural rigidity of the gearbox 1 is further enhanced. By setting the first extension edge 311 and the second extension edge 321 to be arranged at an acute angle with the input shaft 2, this non-parallel structure can increase the overall stability of the gearbox, which helps to disperse stress and vibration during machine operation, reducing structural deformation or damage caused by single-direction stress. It helps to more reasonably utilize the internal space of the gearbox, avoiding interference with other components, while ensuring that key components such as the input shaft 2 and the output shaft 6 can work smoothly.

[0033] Reference Fig. 3 The gearbox further comprises an input bevel gear 4 connected to the input shaft 2 inside the gearbox 1, and an output bevel gear 5 connected to the output shaft 6 inside the gearbox 1 and meshing with the input bevel gear 4. The input bevel gear 4 receives power input in a counterclockwise direction, and through meshing with the output bevel gear 5, outputs power in a clockwise direction, effectively realizing power reversal, meeting the needs of the harvester in different working scenarios. In the limited space of the gearbox 1, by reasonably arranging the input bevel gear 4 and the output bevel gear 5, smooth power reversal and efficient transmission are realized, not only saving space, but also improving the overall performance and reliability of the gearbox, embodying the ingenuity and practicality of the design.

[0034] Reference Figs. 1-3 The gearbox 1 is also provided with a top cover 14, and the top cover 14, the first cover 11 and the second cover 12 are adjacent to each other, and the top cover 14 is provided with an oil pipe joint 141. The top cover 14 is adjacent to the first cover 11 and the second cover 12, and each part is closely connected to form a stable whole, which helps to improve the stability and durability of the gearbox. The oil pipe joint 141 can conveniently connect the external oil pipe for adding or replacing lubricating oil, thereby maintaining the good running state of the gearbox, reducing the operation difficulty and time cost in the maintenance process.

[0035] Reference Figs. 1-3The first outer frame oil seal is provided between the input shaft 2 and the first box cover 11, and the second outer frame oil seal is provided between the output shaft 6 and the second box cover 12. The outer frame oil seal provides a sealing effect, effectively preventing lubricating oil from leaking from the gap between the shaft and the box cover, ensuring that the amount of lubricating oil inside the gear box remains stable, thereby maintaining the good lubrication state of the gears and bearings and other components. The outer frame oil seal not only prevents oil leakage, but more importantly, it can effectively block dust, impurities, moisture and other pollutants in the external environment from entering the internal gear box, which is crucial for protecting the precision components inside the gear box and avoiding wear and failure caused by pollutants. By preventing lubricating oil leakage and external pollutants from entering, the outer frame oil seal provides a clean and well-lubricated working environment for the critical components inside the gear box, such as gears and bearings, significantly extending the service life of these components and reducing the frequency of maintenance and replacement.

[0036] In an embodiment of the present application, with reference to Figs. 1-3 The gear box further comprises a first box side 15, which is arranged opposite to the first box cover 11, and a second box side 16 between the first box side 15 and the top cover 14. By dividing the box body 1 into multiple parts, processing, assembly and disassembly can be more convenient, thereby improving production efficiency and maintainability.

[0037] Preferably, the included angles between the second box side 16 and the first box side 15 and the top cover 14 are obtuse. By setting the included angles between the second box side 16 and the first box side 15 and the top cover 14 as obtuse, the structural stability of the gear box is significantly enhanced, and the obtuse angle structure can provide better support and strength, reducing vibration and deformation that may occur during mechanical operation, thereby ensuring that the gear box can work more stably.

[0038] In an embodiment of the present application, the second box side 16 is provided with a first extension rod 161, and the end of the first extension rod 161 away from the box body 1 is provided with an internal thread straight pipe joint 162. The first extension rod replaces the traditional breather valve, more effectively balances the air pressure inside and outside the gear box, and the gear box can avoid problems that may be caused by the difference in internal and external air pressure during operation, such as oil leakage and gas accumulation, thereby ensuring stable operation of the gear box. At the same time, the internal thread straight pipe joint 162 is installed at the end of the first extension rod 161 away from the box body, reducing the difficulty of operation during maintenance.

[0039] In an embodiment of the utility model, the gear box further comprises a third box side surface 13, which is arranged opposite to the top cover 14. The third box side surface 13 is arranged to make the structure of the gear box more complete and stable. The third box side surface 13 and the top cover 14 are arranged opposite to each other and jointly constitute a closed space of the gear box, effectively protecting the internal gears and transmission mechanism.

[0040] The third box side surface 13 is provided with a second extension rod 131, and the second extension rod 131 is provided with an outer hexagonal internal thread plug 132 at one end away from the box body 1. Through the second extension rod 131, the lubricating oil in the gear box can be discharged more conveniently and quickly, thereby simplifying the maintenance process and improving the efficiency of the oil discharge operation. In addition, the second extension rod 131 is provided with the outer hexagonal internal thread plug 132 at one end away from the box body, which not only provides a convenient, firm and easy-to-operate way for the connection of external equipment or pipelines, but also greatly facilitates the future disassembly and maintenance. The design of the outer hexagonal internal thread plug 132 further enhances the stability of the connection. The hexagonal shape enables the operator to apply better tightening torque, ensuring the reliability of the connection and effectively preventing safety problems that may be caused by loosening.

[0041] Preferably, the first box cover 11 and the second box cover 12 are connected to the box body 1 by bolts. The connection of the first box cover 11, the second box cover 12 and the box body 1 by bolts significantly enhances the overall structural stability of the gear box.

[0042] 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 above utility model, which fall within the protection scope of the utility model.

Claims

1. A grain harvester reversing gear box characterized by, The gear box comprises: a box body provided with a first side and a second side arranged adjacently; a first box cover protruding from the first side of the box body; a second box cover protruding from the second side of the box body; an input shaft rotatably connected to the box body, one end of the input shaft protruding out of the box body from the first box cover for inputting power; 2. A reversing gear box for a grain harvester as defined in claim 1, characterized in that an output shaft rotatably connected to the box body, one end of the output shaft protruding out of the box body from the second box cover for outputting power; 3. A reversing gear box for a grain harvester as defined in claim 1, wherein, the input shaft and the output shaft are in transmission connection and arranged perpendicularly, the second box cover is provided with a first connecting frame and a second connecting frame arranged symmetrically on both sides of the second box cover, the first connecting frame is provided with a first extension edge, the second connecting frame is provided with a second extension edge parallel to the first extension edge, and the included angle between the first extension edge and the second extension edge and the input shaft is an acute angle.

4. A reversing gear box for a grain harvester as defined in claim 3, wherein, The gear box further comprises an input bevel gear connected to the input shaft inside the box body and an output bevel gear connected to the output shaft inside the box body and engaged with the input bevel gear.

5. A reversing gear box for a grain harvester as defined in claim 4, wherein, The box body is further provided with a top cover, the top cover, the first box cover and the second box cover are arranged adjacently in pairs, and the top cover is provided with an oil pipe joint.

6. A reversing gear box for a grain harvester as defined in claim 5, wherein, A first outer skeleton oil seal is arranged between the input shaft and the first box cover, and a second outer skeleton oil seal is arranged between the output shaft and the second box cover.

7. A reversing gear box for a grain harvester as defined in claim 6, wherein, The gear box further comprises a first box side surface arranged opposite to the first box cover, and a second box side surface arranged between the first box side surface and the top cover.

8. A reversing gear box for a grain harvester as defined in claim 7, wherein, The included angles between the second box side surface and the first box side surface and the top cover are obtuse angles.

9. A reversing gear box for a grain harvester as defined in claim 8, wherein, The second box side surface is provided with a first extension rod, and one end of the first extension rod away from the box body is provided with an internally threaded straight-through pipe joint.

10. A reversing gear box for a grain harvester as claimed in claim 8 or 9 wherein, The gear box further comprises a third box side surface arranged opposite to the top cover. The third box side surface is provided with a second extension rod, and one end of the second extension rod away from the box body is provided with an externally hexagonal internally threaded plug. The first box cover and the second box cover are connected to the box body by bolts.

Images