Vertical shaft gearbox for agricultural machinery

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses a vertical shaft gearbox for agricultural machinery. Two ends of the transverse shaft penetrate through the box body, and a transverse shaft bevel gear is arranged on the transverse shaft; one end of the longitudinal shaft penetrates through the box body, and a longitudinal shaft bevel gear is arranged at the end, in the box body, of the longitudinal shaft; the end sealing devices are arranged at the end, penetrating through the box body, of the longitudinal shaft and the two ends, penetrating through the box body, of the transverse shaft, each end sealing device comprises an end cover and a bearing, and a bearing is further arranged at the position, close to the longitudinal shaft bevel gear, of the longitudinal shaft; the longitudinal-axis bevel gear and the transverse-axis bevel gear are located in the gear space and meshed with each other, and the gear space is filled with lubricating oil; and the top cover is arranged at the position of the gear space on the box body. The vertical shaft gearbox for the agricultural machinery has the advantages of being strong in box body sealing effect, convenient to maintain and suitable for various extreme working conditions during agricultural use.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a vertical shaft gear box for agricultural machinery. Background Art

[0002] Agricultural machinery gearbox is a mechanical device specially designed for use in the agricultural field, mainly used to transmit and control the operation of agricultural machinery and equipment. It usually includes a set of gears that achieve transmission functions through meshing and rotation, such as the power source for driving tractors, harvesters, seeders and other agricultural machinery and equipment.

[0003] Through the analysis of the existing technology, the gearboxes used in agricultural machinery still have the following problems: the working environment of agricultural machinery is often very harsh, and the gearbox must be able to cope with various extreme working conditions, including humid environment, high load, high impact and long-term continuous operation, which requires the gearbox to have high sealing performance to prevent foreign matter and water stains from entering the gearbox; since the gearboxes used in agricultural machinery often need to be used outdoors, when the gearbox fails, it needs to be easy to repair and detect, which requires the gearbox to have the advantages of convenient installation and disassembly and have a fault detection function. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a vertical axis gearbox for agricultural machinery, which has the advantages of strong box sealing effect, easy maintenance, and suitability for various extreme working conditions during agricultural use, solving the problems of insufficient sealing and inconvenient maintenance of existing agricultural gearboxes.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A vertical axis gearbox for agricultural machinery, comprising a housing, wherein the housing is provided with:

[0009] A horizontal axis, both ends of which pass through the box body, and a horizontal axis helical gear is arranged inside the box body;

[0010] A longitudinal axis, one end of which passes through the box body, and the other end of which is arranged inside the box body, a longitudinal axis bevel gear is arranged at one end of the longitudinal axis inside the box body, the longitudinal axis and the transverse axis are perpendicular to each other, and the longitudinal axis bevel gear and the transverse axis bevel gear are meshed with each other;

[0011] An end sealing device, wherein one end of the longitudinal axis passing through the housing and both ends of the transverse axis passing through the housing are provided with end sealing devices, the end sealing device comprises an end cover detachably mounted on the housing and a bearing mounted on the inner side of the end cover, the end cover is provided with an inner skeleton double lip oil seal on the contact surface with the longitudinal axis or the transverse axis, the outer side of the bearing is attached to the inner wall of the housing, the inner side of the bearing is attached to the surface of the longitudinal axis or the transverse axis, and the longitudinal axis is also provided with a bearing at a position close to the longitudinal axis helical gear;

[0012] A gear space, wherein the longitudinal axis helical gear and the transverse axis helical gear are located in the gear space and mesh with each other, the gear space is sealed by three end sealing devices, and the gear space is filled with lubricating oil;

[0013] A top cover is arranged at the position of the gear space on the box body, and the top cover can be detachably mounted on the box body.

[0014] Preferably, the longitudinal axis or the transverse axis is further provided with a nut near the bearing, and the nut is used to limit the bearing to rotate at a fixed position.

[0015] Preferably, a sealing ring is also provided on the contact surface of the end cover with the box body.

[0016] Preferably, the balls in the bearing are inclined frustums, each frustum is fixed at a fixed position on the outer ring of the bearing for rotation, and the circumference of each frustum is evenly distributed on the bearing.

[0017] Preferably, the top cover is also provided with an oil sight glass for observing the interior of the gear space.

[0018] Preferably, at least one plug is provided on the side wall of the gear space.

[0019] Preferably, on the longitudinal axis in the housing, the space between the two bearings is the longitudinal axis space, and at least one plug and at least one air-permeable plug are provided on the side walls of the longitudinal axis space.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides a vertical axis gearbox for agricultural machinery, which has the following beneficial effects:

[0022] 1. The vertical axis gearbox for agricultural machinery is provided with a horizontal axis passing through both ends and a vertical axis passing through one end in the box body. The vertical axis and the horizontal axis are driven by helical gears. End sealing devices are provided at the contact positions of the longitudinal axis and the horizontal axis with the box body. The three end sealing devices completely seal the box body. The bearings are used to support the rotation of the longitudinal axis and the horizontal axis. The end covers are provided with sealing rings and inner skeleton double-lip oil seals on the contact surfaces with the box body and the longitudinal axis or the horizontal axis, respectively, so as to improve the sealing effect inside and outside the box body.

[0023] 2. The vertical axis gearbox for agricultural machinery is convenient for maintenance of the interior of the box by arranging a detachable top cover and multiple end sealing devices on the box body, and is convenient for observing the interior of the box by arranging an oil sight glass on the top cover.

[0024] 3. The vertical axis gearbox for agricultural machinery has a plug and a vent plug arranged on the side wall of the box body. The plug facilitates ventilation and filling of lubricating oil in the box body, and the vent plug maintains the normal working state of the box body and prevents oil leakage and sealing failure caused by changes in internal air pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a vertical shaft gearbox for agricultural machinery of the utility model.

[0026] Figure 2 The utility model is a schematic diagram of the structure of the transmission part of the vertical shaft gearbox for agricultural machinery.

[0027] Figure 3 It is a side view of the vertical axis gearbox for agricultural machinery of the utility model.

[0028] Figure 4 For this utility model Figure 3 Sectional view of AA.

[0029] In the figure: 1. casing; 111. gear space; 112. longitudinal axis space; 21. longitudinal axis; 22. transverse axis; 3. end sealing device; 31. end cover; 32. bearing; 33. sealing ring; 34. nut; 35. inner skeleton double lip oil seal; 41. longitudinal axis bevel gear; 42. transverse axis bevel gear; 5. top cover; 6. plug; 7. breather plug; 8. oil sight glass. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] Embodiment 1:

[0034] This embodiment provides a vertical axis gearbox for agricultural machinery, which has the following technical features.

[0035] See also Figure 1-4 A vertical axis gearbox for agricultural machinery includes a housing 1, in which:

[0036] A horizontal axis 22, both ends of which pass through the box body 1, and a horizontal axis helical gear 42 is arranged inside the box body 1;

[0037] A longitudinal axis 21, one end of which passes through the housing 1, and the other end of which is disposed inside the housing 1. A longitudinal axis bevel gear 41 is disposed at one end of the longitudinal axis 21 inside the housing 1. The longitudinal axis 21 and the transverse axis 22 are perpendicular to each other, and the longitudinal axis bevel gear 41 and the transverse axis bevel gear 42 are meshed with each other;

[0038] An end sealing device 3 is provided at one end of the longitudinal axis 21 passing through the housing 1 and at both ends of the transverse axis 22 passing through the housing 1. The end sealing device 3 comprises an end cover 31 detachably mounted on the housing 1 and a bearing 32 mounted on the inner side of the end cover 31. The end cover 31 is provided with an inner skeleton double lip oil seal 35 on the contact surface with the longitudinal axis 21 or the transverse axis 22. The outer side of the bearing 32 is attached to the inner wall of the housing 1, and the inner side of the bearing 32 is attached to the surface of the longitudinal axis 21 or the transverse axis 22. The longitudinal axis 21 is also provided with a bearing 32 at a position close to the longitudinal axis bevel gear 41;

[0039] A gear space 111, in which the longitudinal helical gear 41 and the transverse helical gear 42 are meshed, the gear space 111 is sealed by three end sealing devices 3, and the gear space 111 is filled with lubricating oil;

[0040] The top cover 5 is arranged at the position of the gear space 111 on the box body 1 , and the top cover 5 can be detachably mounted on the box body 1 .

[0041] It should be noted that the longitudinal axis 21 is connected to the motor as a driving axis, and the transverse axis 22 is used as a driven axis for output. Both ends of the transverse axis 22 pass through the box 1, so the transverse axis 22 can be connected to the output device at both ends.

[0042] It should be noted that lubricating oil is one of mineral oil, synthetic oil or semi-synthetic oil.

[0043] In an optional embodiment, the longitudinal axis 21 or the transverse axis 22 is further provided with a nut 34 at a position close to the bearing 32 , and the nut 34 is used to limit the bearing 32 to rotate at a fixed position.

[0044] It should be noted that the nut 34 is fixed to the longitudinal axis 21 or the transverse axis 22 .

[0045] In an optional embodiment, a sealing ring 33 is further provided on the contact surface of the end cover 31 with the box body 1 .

[0046] It should be noted that the sealing ring 33 is a sealing ring with a square cross section, and the sealing ring 33 is made of rubber.

[0047] In an optional embodiment, the balls in the bearing 32 are inclined frustums, each frustum is fixed at a fixed position on the outer ring of the bearing 32 for rotation, and the circumference of each frustum is evenly distributed on the bearing 32.

[0048] In an optional embodiment, the top cover 5 is further provided with an oil viewing mirror 8 for observing the interior of the gear space 111 .

[0049] It should be noted that the oil sight glass 8 is fixed to the top cover 5 by bolts, a sealing ring is provided on the contact surface between the oil sight glass 8 and the top cover 5, and the part of the oil sight glass 8 used for observation is made of transparent material.

[0050] In an optional embodiment, at least one plug 6 is provided on the side wall of the gear space 111 .

[0051] It should be noted that the plug 6 serves as a ventilation hole and a lubricating oil filling port.

[0052] In an optional embodiment, on the longitudinal axis 21 in the housing 1 , the space between the two bearings 32 is the longitudinal axis space 112 , and at least one plug 6 and at least one vent plug 7 are provided on the side walls of the longitudinal axis space 112 .

[0053] It should be noted that the main function of the vent plug 7 is to maintain the normal working state inside the box body 1 and prevent oil leakage and sealing failure caused by changes in internal air pressure.

[0054] In summary, the vertical axis gearbox for agricultural machinery is provided with a horizontal axis 22 passing through both ends and a vertical axis 21 passing through one end in the box body 1. The vertical axis 21 and the horizontal axis 22 are driven by helical gears. The longitudinal axis 21 and the horizontal axis 22 are provided with end sealing devices 3 at the contact positions with the box body 1. The three end sealing devices 3 completely seal the box body 1. The bearings 32 are used to support the rotation of the longitudinal axis 21 and the horizontal axis 22. The end cover 31 is provided with sealing rings 33 and inner skeleton double lip oil seals 35 on the contact surfaces with the box body 1 and the longitudinal axis 21 or the horizontal axis 22, respectively, thereby improving the sealing effect inside and outside the box body 1.

[0055] The vertical axis gearbox for agricultural machinery is convenient for maintenance of the interior of the box body 1 by arranging a detachable top cover 5 and a plurality of end sealing devices 3 on the box body 1, and convenient for observing the interior of the box body 1 by arranging an oil sight glass 8 on the top cover 5.

[0056] The vertical axis gearbox for agricultural machinery has a plug 6 and a breathable plug 7 arranged on the side wall of the box body 1. The plug 6 facilitates ventilation and filling of lubricating oil in the box body 1, and the breathable plug 7 maintains the normal working state of the box body 1 and prevents oil leakage and sealing failure caused by changes in internal air pressure.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0058] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical axis gearbox for agricultural machinery, comprising a housing (1), characterized in that: The box (1) is provided with: A transverse axis (22), both ends of the transverse axis (22) passing through the box body (1), and the transverse axis (22) is provided with a transverse axis bevel gear (42) inside the box body (1); A longitudinal axis (21), one end of the longitudinal axis (21) passes through the box body (1), the other end of the longitudinal axis (21) is arranged inside the box body (1), a longitudinal axis bevel gear (41) is arranged at one end of the longitudinal axis (21) inside the box body (1), the longitudinal axis (21) and the transverse axis (22) are perpendicular to each other, and the longitudinal axis bevel gear (41) and the transverse axis bevel gear (42) are meshed with each other; An end sealing device (3), wherein the end of the longitudinal axis (21) passing through the housing (1) and the two ends of the transverse axis (22) passing through the housing (1) are both provided with an end sealing device (3), the end sealing device (3) comprising an end cover (31) detachably mounted on the housing (1) and a bearing (32) mounted on the inner side of the end cover (31), the end cover (31) being provided with an inner skeleton double lip oil seal (35) on the contact surface with the longitudinal axis (21) or the transverse axis (22), the outer side of the bearing (32) being attached to the inner wall of the housing (1), and the inner side of the bearing (32) being attached to the surface of the longitudinal axis (21) or the transverse axis (22), and the longitudinal axis (21) is also provided with a bearing (32) at a position close to the longitudinal axis bevel gear (41); A gear space (111), wherein the longitudinal axis bevel gear (41) and the transverse axis bevel gear (42) are located in the gear space (111) and mesh with each other, the gear space (111) is sealed by three end sealing devices (3), and the gear space (111) is filled with lubricating oil; A top cover (5), wherein the top cover (5) is arranged at the position of the gear space (111) on the box body (1), and the top cover (5) can be detachably mounted on the box body (1).

2. A vertical axis gearbox for agricultural machinery according to claim 1, characterized in that: The longitudinal axis (21) or the transverse axis (22) is also provided with a nut (34) at a position close to the bearing (32), and the nut (34) is used to limit the bearing (32) to rotate at a fixed position.

3. The vertical axis gearbox for agricultural machinery according to claim 1, characterized in that: The contact surface of the end cover (31) with the box body (1) is also provided with a sealing ring (33).

4. The vertical axis gearbox for agricultural machinery according to claim 1, characterized in that: The balls in the bearing (32) are inclined truncated cones, each of which is fixed at a fixed position on the outer ring of the bearing (32) for rotation, and the circumferences of the truncated cones are evenly distributed on the bearing (32).

5. The vertical axis gearbox for agricultural machinery according to claim 1, characterized in that: The top cover (5) is also provided with an oil viewing mirror (8) for observing the interior of the gear space (111).

6. The vertical axis gearbox for agricultural machinery according to claim 1, characterized in that: At least one plug (6) is arranged on the side wall of the gear space (111).

7. The vertical axis gearbox for agricultural machinery according to claim 1, characterized in that: On the longitudinal axis (21) in the housing (1), the space between the two bearings (32) is a longitudinal axis space (112), and at least one plug (6) and at least one vent plug (7) are arranged on the side wall of the longitudinal axis space (112).

Images