Suspension type monorail gearbox

Abstract

The invention discloses a suspension type monorail gearbox. The suspension type monorail gearbox comprises a shell; the input shaft is rotatably arranged in the shell and is obliquely arranged relative to the horizontal plane, an input bearing structure is arranged between the input shaft and the shell, and a first oil leakage channel communicated with an inner cavity of the shell is formed in the shaft wall, located between the highest end of the input shaft and the input bearing structure, of the input shaft; the output shaft is rotatably arranged in the shell and is in transmission fit with the input shaft; the input shaft oil guide sleeve is inserted into the hollow cavity of the input shaft and fixedly connected with the input shaft, and a second oil leakage channel correspondingly communicating with the first oil leakage channel is formed in the sleeve wall of the input shaft oil guide sleeve; the oil collector is arranged in the shell and is close to the lowest end of the input shaft, a liquid inlet of the oil collector faces the input shaft, and a liquid outlet of the oil collector is communicated with the interior of the input shaft oil guide sleeve through a first oil guide pipe. Under the condition that a splash lubrication mode is adopted, the suspension type monorail gearbox is light in weight, low in manufacturing cost, good in lubrication effect and high in lubrication efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of suspended monorail vehicles, and more particularly to a suspended monorail gearbox. Background Art

[0002] The existing suspended monorail gearbox adopts a one-stage spiral bevel gear reducer structure, which is composed of an input gear shaft assembly, an output gear shaft assembly, a lubrication system assembly and a housing assembly. Among them, the input shaft forms a large elevation angle with the horizontal plane, and the bearing position on the input shaft is relatively high. The conventional splash lubrication structure cannot lubricate the input shaft bearing well. Therefore, in the prior art, the following two methods are usually used to improve the conventional splash lubrication structure.

[0003] The first method is to use pressure forced lubrication, which requires installing a power take-off active gear on the output shaft, and then driving an oil pump through the power take-off driven gear to lubricate the gears and bearings. In addition, separate supports are required on the bearings and the power take-off driven gear shaft. However, the above lubrication structure is complex and will increase the weight and cost of the gearbox.

[0004] The second method is to set an oil pocket on the housing above the input shaft bearing, which receives the lubricating oil splashed by the input gear and then connects to the bearing through the internal pipeline of the housing to lubricate the bearing. However, the oil pocket is also located at a high position, which makes it inconvenient to collect oil, resulting in poor lubrication effect and low lubrication efficiency.

[0005] In summary, how to solve the problems of high weight and high cost, poor lubrication effect and low lubrication efficiency of the existing suspended monorail gearbox using splash lubrication is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a suspended monorail gearbox, which has an oil guide structure that does not require additional space, has a simple structure, is convenient for oil collection and has high lubrication efficiency. Therefore, when the suspended monorail gearbox adopts splash lubrication, the weight of the gearbox is reduced, the manufacturing cost is saved, and the lubrication effect and efficiency are improved.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A suspended monorail gearbox, comprising:

[0009] case;

[0010] An input shaft is rotatably disposed in the housing and is tilted relative to a horizontal plane, an input bearing structure is disposed between the input shaft and the housing, and a first oil leakage channel communicating with an inner cavity of the housing is disposed on a shaft wall of the input shaft located between the highest end of the input shaft and the input bearing structure;

[0011] An output shaft is rotatably disposed in the housing and is in driving cooperation with the input shaft, and an output bearing structure is provided between the output shaft and the housing;

[0012] An input shaft oil guide sleeve is inserted into the hollow cavity of the input shaft and fixedly connected to the input shaft, and a second oil leakage channel corresponding to and communicating with the first oil leakage channel is provided on the sleeve wall of the input shaft oil guide sleeve;

[0013] The oil collector is arranged in the housing and adjacent to the lowest end of the input shaft. The liquid inlet of the oil collector faces the input shaft, and the liquid outlet is connected to the interior of the oil guide sleeve of the input shaft through a first oil guide pipe.

[0014] Preferably, it further comprises an output shaft oil guide sleeve, wherein the output shaft oil guide sleeve is inserted into the hollow cavity of the output shaft and fixedly connected to the output shaft;

[0015] A third oil leakage channel connected to the inner cavity of the housing is provided on the shaft wall of the output shaft, which is located between the rear end of the output shaft away from the input shaft and the output bearing structure; a fourth oil leakage channel corresponding to the third oil leakage channel is provided on the sleeve wall of the output shaft oil guide sleeve; and the liquid outlet of the oil collector is also connected to the interior of the output shaft oil guide sleeve through a second oil guide pipe.

[0016] Preferably, the oil collector is located between the lowest end of the input shaft and the front end of the output shaft adjacent to the input shaft and is disposed adjacent to the lowest end of the input shaft.

[0017] Preferably, the input shaft oil guide sleeve is arranged to extend along the axial direction of the input shaft, and the diameter of the input shaft oil guide sleeve gradually increases from the lowest end to the highest end of the input shaft;

[0018] And / or, the output shaft oil guide sleeve is extended along the axial direction of the output shaft, and the diameter of the output shaft oil guide sleeve gradually increases along the direction from the front end of the output shaft to the rear end thereof.

[0019] Preferably, one end of the input shaft oil guide sleeve passes through the lowest end of the input shaft and extends out of the input shaft to communicate with the first oil guide pipe;

[0020] And / or, one end of the output shaft oil guide sleeve passes through the front end of the output shaft and extends out of the output shaft to communicate with the second oil guide pipe.

[0021] Preferably, the first oil leakage passage comprises a plurality of first oil leakage holes arranged at equal intervals around the axis of the input shaft, and the second oil leakage passage comprises a plurality of second oil leakage holes connected to the plurality of first oil leakage holes in a one-to-one correspondence;

[0022] And / or, the third oil leakage channel includes a plurality of third oil leakage holes arranged at equal intervals around the axis of the output shaft, and the fourth oil leakage channel includes a plurality of fourth oil leakage holes connected to the plurality of third oil leakage holes in a one-to-one correspondence.

[0023] Preferably, the oil collector comprises a hollow shell, the upper side wall of the hollow shell is inclined toward the input shaft, and the upper side wall of the hollow shell is provided with the liquid inlet extending along its length direction, and the left side wall and the right side wall of the hollow shell are respectively plugged with the first oil guide pipe and the second oil guide pipe.

[0024] Preferably, a partition plate extending along the length direction of the hollow shell is provided inside the hollow shell to divide the inside of the hollow shell into two liquid collecting tanks along the left-right direction.

[0025] Preferably, the upper portion of the hollow shell is higher than the lower portion thereof, and the first oil guiding pipe and the second oil guiding pipe are both plugged into the lower portion of the hollow shell.

[0026] Preferably, the upper portion of the hollow shell is adjustably disposed on the housing via a mounting flange.

[0027] The present invention provides a suspended monorail gearbox, wherein the input shaft is arranged to be inclined compared to the horizontal plane so that the input shaft has a larger elevation angle, and the shell is provided with an oil collector at the lowest end position adjacent to the input shaft, and the input shaft must be sleeved with an input gear, and the oil collector can collect the lubricating oil below the input gear and splashed with the input gear, and the lubricating oil collected by the oil collector can then flow to the inside of the input shaft oil guide sleeve through the first oil guide pipe, and the input shaft oil guide sleeve rotates with the input shaft, and the centrifugal force generated by the rotation of the input shaft oil guide sleeve can be utilized to throw the lubricating oil through the first oil leakage channel and the second oil leakage channel in sequence to the inner cavity of the shell, and since the second oil leakage channel is located between the highest end of the input shaft and the input bearing structure, the lubricating oil flows to the input bearing structure under the action of its own gravity to lubricate all the bearings on the input shaft.

[0028] Therefore, compared with the two lubrication structures used in the existing suspended monorail gearbox, the present invention has the following beneficial effects:

[0029] 1. The input shaft oil guide sleeve is arranged in the hollow cavity of the input shaft, which does not need to occupy the internal space of the gearbox, and is conducive to reducing the weight of the gearbox.

[0030] 2. The oil collector is located at the bottom of the input shaft, which can effectively collect the lubricating oil thrown off the input gear. The oil collection is convenient, which is beneficial to improving the lubrication effect and efficiency of the gearbox.

[0031] 3. The lubricating oil thrown out by the input shaft oil guide sleeve flows to the top of the input bearing structure through the sleeve wall of the input shaft oil guide sleeve and the shaft wall of the input shaft in turn. The lubricating oil can flow into the input bearing structure by its own gravity, and there is no need to set up forced lubrication components, such as a lubrication pump, which greatly reduces the weight and manufacturing cost of the gearbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1 This is a structural schematic diagram of a suspended monorail gearbox provided by the present invention;

[0034] Figure 2 A partial structural schematic diagram of the input shaft provided by the present invention;

[0035] Figure 3 This is a schematic diagram of assembling the input shaft and the input shaft oil guide sleeve provided by the present invention;

[0036] Figure 4 This is a schematic structural diagram of the second oil collector provided by the present invention.

[0037] Reference numerals:

[0038] 1-input shaft; 11-first oil leakage hole;

[0039] 2-input bearing structure; 21-cylindrical roller bearing; 22-ball bearing;

[0040] 3- Input gear;

[0041] 4-input shaft oil guide sleeve; 41-second oil leakage hole;

[0042] 5- output shaft;

[0043] 6-Output gear;

[0044] 7- output shaft oil guide sleeve;

[0045] 8-oil collector; 81-hollow shell; 82-first oil guide pipe; 83-second oil guide pipe; 84-mounting flange. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The core of the present invention is to provide a suspended monorail gearbox, which has an oil guide structure that does not require additional space, has a simple structure, is convenient for oil collection and has high lubrication efficiency. Therefore, when the suspended monorail gearbox adopts splash lubrication, the weight of the gearbox is reduced, the manufacturing cost is saved, and the lubrication effect and efficiency are improved.

[0048] It should be noted that, in the present embodiment, the directions or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0049] Please refer to Figure 1 The present invention provides a suspended monorail gearbox, comprising a housing, an input shaft 1, an output shaft 5, an input shaft oil guide sleeve 4 and an oil collector 8.

[0050] The input shaft 1 is rotatably arranged in the housing and is inclined relative to the horizontal plane. An input bearing structure 2 is arranged between the input shaft 1 and the housing. A first oil leakage channel connected to the inner cavity of the housing is arranged on the shaft wall of the input shaft 1 located between the highest end of the input shaft 1 and the input bearing structure 2.

[0051] The output shaft 5 is rotatably disposed in the housing and is in transmission cooperation with the input shaft 1 , and an output bearing structure is disposed between the output shaft 5 and the housing.

[0052] The input shaft oil guide sleeve 4 is inserted into the hollow cavity of the input shaft 1 and fixedly connected to the input shaft 1 . A second oil leakage channel corresponding to and communicating with the first oil leakage channel is provided on the sleeve wall of the input shaft oil guide sleeve 4 .

[0053] The oil collector 8 is arranged in the housing and adjacent to the lowest end of the input shaft 1 . The liquid inlet of the oil collector 8 faces the input shaft 1 , and the liquid outlet is connected to the interior of the input shaft oil guide sleeve 4 through the first oil guide pipe 82 .

[0054] In this embodiment, please refer to Figure 2An input bearing structure 2 is provided between the input shaft 1 and the housing to support the high-speed rotation of the input shaft 1. The input bearing structure 2 may include two cylindrical roller bearings 21 and a ball bearing 22 located between the two. The three cooperate with each other to limit the input shaft 1 in the radial and axial directions. Of course, the input bearing structure 2 may also adopt any one or more combinations of other types of bearings, and the structural form is not unique. In addition, an output bearing structure (not shown in the figure) is provided between the output shaft 5 and the housing to support the high-speed rotation of the output shaft 5. The output bearing structure is consistent with the structure of the input bearing structure 2 and will not be repeated.

[0055] It should be noted that the input shaft 1 of the suspended monorail gearbox is tilted relative to the horizontal plane, so that the input shaft 1 has a large inclination angle, even if the height of the input shaft 1 gradually decreases from one end to the other end, therefore, the input shaft 1 has a top end and a bottom end, such as Figure 1 The output shaft 5 is generally arranged horizontally, even if it has a certain elevation angle relative to the horizontal plane, the elevation angle is small and will not affect the lubrication of the output bearing structure.

[0056] In addition, a sealing structure such as a lip oil seal is generally provided between the highest end of the input shaft 1 and the housing to prevent the lubricating oil from leaking out of the housing. Similarly, a sealing structure is generally provided between the rear end of the output shaft 5 away from the input shaft 1 and the housing to prevent the lubricating oil from leaking out of the housing. The specific structure and setting of the sealing structure can refer to the prior art, which is not the focus of the present invention, so it will not be described in detail.

[0057] In this embodiment, please refer to Figure 1 The input shaft 1 and the output shaft 5 are in transmission cooperation, and the specific transmission cooperation mode is: the output shaft 5 is sleeved with an input gear 3, and the output shaft 5 is sleeved with an output gear 6. Both the input gear 3 and the output gear 6 are spiral bevel gear structures and the two are meshing transmission.

[0058] In this embodiment, please refer to Figure 3 The input shaft oil guide sleeve 4 is a cylindrical structure with openings at both ends. The input shaft 1 has a hollow cavity. The input shaft oil guide sleeve 4 can be inserted into the hollow cavity. A first oil leakage channel is arranged on the shaft wall of the input shaft 1 adjacent to its highest end. A second oil leakage channel is arranged at a position of the input shaft oil guide sleeve 4 corresponding to the first oil leakage channel. The first oil leakage channel is connected to the second oil leakage channel, and the second oil leakage channel is connected to the inner cavity of the shell, so that the lubricating oil in the input shaft oil guide sleeve 4 can be thrown out to the inner cavity of the shell to flow downstream to the input bearing structure 2.

[0059] In this embodiment, please refer to Figure 1The oil collector 8 is arranged at the bottom of the housing near the input shaft 1, and the oil inlet of the oil collector 8 faces the input shaft 1, so that the oil collector 8 can collect most of the lubricating oil splashed by the input gear 3, so as to facilitate the oil collection of the oil collector 8. One end of the first oil guide pipe 82 is connected to the oil outlet of the oil collector 8, and the other end is inserted into the interior of the input shaft oil guide sleeve 4, so that the oil collector 8 can transport oil to the input shaft oil guide sleeve 4.

[0060] When the suspended monorail gearbox in the above embodiment is in operation, the oil collector 8 can collect the lubricating oil under the input gear 3 and splashed with the input gear 3. The lubricating oil collected by the oil collector 8 can then flow to the inside of the input shaft oil guide sleeve 4 through the first oil guide pipe 82. The input shaft oil guide sleeve 4 rotates together with the input shaft 1. The centrifugal force generated by the rotation of the input shaft oil guide sleeve 4 can be used to throw the lubricating oil through the first oil leakage channel and the second oil leakage channel in sequence to the inner cavity of the shell. Since the second oil leakage channel is located between the highest end of the input shaft 1 and the input bearing structure 2, the lubricating oil flows to the input bearing structure 2 under the action of its own gravity to lubricate all bearings on the input shaft 1.

[0061] In order to further optimize and improve the lubrication effect and lubrication efficiency of the gearbox, based on the above embodiments, please refer to Figure 1 The present invention also includes an output shaft oil guide sleeve 7, which is inserted into the hollow cavity of the output shaft 5 and fixedly connected to the output shaft 5; a third oil leakage channel connected to the inner cavity of the shell is provided on the shaft wall of the output shaft 5 located between the rear end of the output shaft 5 away from the input shaft 1 and the output bearing structure, and a fourth oil leakage channel corresponding to the third oil leakage channel is provided on the sleeve wall of the output shaft oil guide sleeve 7, and the liquid outlet of the oil collector 8 is also connected to the interior of the output shaft oil guide sleeve 7 through the second oil guide pipe 83.

[0062] Therefore, when the gearbox is running, part of the lubricating oil collected by the oil collector 8 can flow to the inside of the output shaft oil guide sleeve 7 through the second oil guide pipe 83. The output shaft oil guide sleeve 7 rotates with the output shaft 5. The centrifugal force generated by the rotation of the output shaft oil guide sleeve 7 can be used to throw the lubricating oil out to the inner cavity of the shell through the third oil leakage channel and the fourth oil leakage channel in sequence. Since the third oil leakage channel is located between the rear end of the output shaft 5 and the output bearing structure, the lubricating oil can flow to the output bearing structure regardless of whether the output shaft 5 has an elevation angle or not, so as to enhance the lubrication effect and lubrication efficiency of the output bearing structure, thereby further improving the lubrication effect and lubrication efficiency of the gearbox.

[0063] Regarding the specific location of the oil collector 8, please refer to Figure 1 The oil collector 8 is located between the lowest end of the input shaft 1 and the front end of the output shaft 5 adjacent to the input shaft 1 and is arranged adjacent to the lowest end of the input shaft 1 .

[0064] It is understandable that the input gear 3 sleeved on the input shaft 1 will splash lubricating oil when rotating at high speed, and the oil collector 8 is adjacent to the bottom end of the input shaft 1, which can achieve the purpose of effectively and conveniently collecting lubricating oil. When the above purpose is achieved, the oil collector 8 is located between the bottom end of the input shaft 1 and the front end of the output shaft 5 adjacent to the input shaft 1, so that the first oil guide pipe 82 and the second oil guide pipe 83 are conveniently arranged to conveniently transport oil to the input shaft oil guide sleeve 4 and the output shaft oil guide sleeve 7 at the same time.

[0065] Preferably, an oil pool is provided at the lower part of the housing, whereby the lubricating oil flows back into the oil pool under the action of gravity after lubricating the input bearing structure 2 or the output bearing structure, so as to facilitate the recovery of the lubricating oil.

[0066] Regarding the specific structure of the input shaft oil guide sleeve 4, based on the above embodiment, please refer to Figure 2 The input shaft oil guide sleeve 4 is extended along the axial direction of the input shaft 1, and the diameter of the input shaft oil guide sleeve 4 gradually increases from the lowest end to the highest end of the input shaft 1.

[0067] Specifically, the input shaft oil guide sleeve 4 is coaxially arranged with the input shaft 1, which is conducive to ensuring that the input shaft oil guide sleeve 4 rotates smoothly with the input shaft 1, and during the rotation process, since the diameter of the input shaft oil guide sleeve 4 gradually increases from the lowest end to the highest end of the input shaft 1, the centrifugal force formed by the high rotation will generate an upward component force to overcome gravity and guide the lubricating oil to flow from low to high, so that the lubricating oil is thrown out to the inner cavity of the housing through the first oil leakage channel and the second oil leakage channel in turn, thereby ensuring that the lubricating oil is thrown out smoothly to the inner cavity of the housing, and avoiding the lubricating oil from being retained in the input shaft oil guide sleeve 4. Among them, the input shaft oil guide sleeve 4 is a conical structure, with its small diameter end located at the lowest end of the input shaft 1 and the large diameter end located at the highest end of the input shaft 1. Of course, the input shaft oil guide sleeve 4 can also adopt other shapes and structures, which are not unique.

[0068] Regarding the specific structure of the output shaft oil guide sleeve 7, on the basis of the above embodiment, the output shaft oil guide sleeve 7 is arranged to extend along the axial direction of the output shaft 5, and the diameter of the output shaft oil guide sleeve 7 gradually increases from the front end to the rear end of the output shaft 5. The principle and purpose of setting the output shaft oil guide sleeve 7 are the same as those of the above input shaft oil guide sleeve 4, which is to ensure that the lubricating oil is smoothly thrown out to the inner cavity of the housing to prevent the lubricating oil from being retained in the output shaft oil guide sleeve 7.

[0069] In order to facilitate the connection between the input shaft oil guide sleeve 4 and the first oil guide pipe 82, based on the above embodiment, please refer to Figure 1 One end of the input shaft oil guide sleeve 4 passes through the lowest end of the input shaft 1 and extends out of the input shaft 1 to communicate with the first oil guide pipe 82.

[0070] Specifically, the bottom end of the input shaft 1 is an opening, and one end (i.e., the end with the smallest diameter) of the input shaft oil guide sleeve 4 passes through the opening and extends out of the input shaft 1, which not only facilitates the connection between the first oil guide pipe 82 and the input shaft oil guide sleeve 4, but also allows the length of the extended portion of the input shaft oil guide sleeve 4 to be set according to the length of the first oil guide pipe 82, so that the end of the first oil guide pipe 82 away from the oil collector 8 is just located at the port of the input shaft oil guide sleeve 4, thereby streamlining the length of the first oil guide pipe 82 and avoiding the situation in which the first oil guide pipe 82 is inserted too deeply into the input shaft oil guide sleeve 4, causing the oil guide pipe to be susceptible to vibration, thereby ensuring that the first oil guide pipe 82 transports oil safely and smoothly.

[0071] To facilitate the connection between the output shaft oil guide sleeve 7 and the second oil guide pipe 83, based on the above embodiment, please refer to Figure 1 One end of the output shaft oil guide sleeve 7 passes through the front end of the output shaft 5 and extends out of the output shaft 5 to communicate with the second oil guide pipe 83.

[0072] Similarly, the front end of the output shaft 5 adjacent to the input shaft 1 is an opening, and one end of the output shaft oil guide sleeve 7 passes through the opening and extends out of the output shaft 5, which not only facilitates the connection between the second oil guide pipe 83 and the output shaft oil guide sleeve 7, but also allows the length of the extended portion of the output shaft oil guide sleeve 7 to be set according to the length of the second oil guide pipe 83, so that the end of the second oil guide pipe 83 away from the oil collector 8 is just located at the port of the output shaft oil guide sleeve 7, thereby streamlining the length of the second oil guide pipe 83 and avoiding the situation in which the second oil guide pipe 83 is inserted too deeply into the output shaft oil guide sleeve 7, causing the oil guide pipe to be susceptible to vibration, thereby ensuring that the second oil guide pipe 83 transports oil safely and smoothly.

[0073] Considering the specific configuration of the first oil leakage channel and the second oil leakage channel, based on the above embodiment, please refer to Figure 2 and Figure 3 The first oil leakage passage includes a plurality of first oil leakage holes 11 arranged at equal intervals around the axis of the input shaft 1 , and the second oil leakage passage includes a plurality of second oil leakage holes 41 connected to the plurality of first oil leakage holes 11 in one-to-one correspondence.

[0074] It can be understood that the multiple first oil leakage holes 11 arranged at equal intervals around the axis of the input shaft 1 can also form a first oil leakage path for uniform oil rejection, and the multiple second oil leakage holes 41 connected to the multiple first oil leakage holes 11 in a one-to-one correspondence can also form a second oil leakage path for uniform oil rejection. As a result, the lubricating oil can be evenly splashed onto the outer circumferential surface of the input shaft 1, and then evenly flow into the input bearing structure 2, thereby ensuring uniform lubrication of the input bearing structure 2.

[0075] The third oil leakage channel and the fourth oil leakage channel are arranged in the same manner as the first oil leakage channel and the second oil leakage channel. The third oil leakage channel includes a plurality of third oil leakage holes (not shown in the figure) arranged at intervals around the axis of the output shaft 5, and the fourth oil leakage channel includes a plurality of fourth oil leakage holes (not shown in the figure) connected to the plurality of third oil leakage holes in a one-to-one correspondence. Thus, the lubricating oil can be evenly splashed onto the outer circumferential surface of the output shaft 5, and then evenly flow into the output bearing structure, thereby ensuring even lubrication of the output bearing structure.

[0076] Considering the specific configuration of the oil collector 8, based on the above embodiment, please refer to Figure 1 The oil collector 8 includes a hollow shell 81, the upper side wall of the hollow shell 81 is inclined toward the input shaft 1, and the upper side wall of the hollow shell 81 extends along its length direction to open a liquid inlet, and the left side wall and the right side wall of the hollow shell 81 are respectively inserted with a first oil guide pipe 82 and a second oil guide pipe 83.

[0077] Specifically, the liquid inlet is used for the lubricating oil splashed by the input gear 3 to pass through, and the liquid inlet is arranged on the upper side wall of the hollow shell 81 to avoid leakage due to the liquid inlet being arranged downward. On this basis, the upper side wall of the hollow shell 81 needs to be inclined at a certain angle toward the input shaft 1, and the liquid inlet is extended along the length direction of the hollow shell 81 to facilitate liquid inlet. In addition, since the suspended monorail gearbox is usually a one-stage spiral bevel gear reducer structure, that is, the input shaft 1 and the output shaft 5 are arranged vertically, the first oil guide pipe 82 and the second oil guide pipe 83 are respectively plugged into the left and right walls of the hollow shell 81, which can make the arrangement of the first oil guide pipe 82 and the second oil guide pipe 83 more convenient. It should be noted that the shape of the hollow shell 81 can adopt a rectangular block structure or a cylindrical structure, such as Figure 1 and Figure 4 As shown, the structural shape is not unique.

[0078] In order to effectively lubricate the input bearing structure 2 and the output bearing structure at the same time, based on the above embodiment, please refer to Figure 1 The hollow shell 81 is provided with a partition plate extending along its length direction to divide the interior of the hollow shell 81 into two liquid collecting tanks along the left-right direction.

[0079] Therefore, the interior of the hollow shell 81 is divided into two liquid collecting tanks arranged along the left and right directions by the partition plate, and each liquid collecting tank extends along the length direction of the hollow shell 81 and has a certain oil storage space. The two liquid collecting tanks can divert the lubricating oil collected in the hollow shell 81 so that the lubricating oil flows out along two independent flow paths, avoiding most or all of the lubricating oil flowing out from one side of the hollow shell 81, thereby ensuring that the oil collector 8 can lubricate the input bearing structure 2 and the output bearing structure at the same time.

[0080] In order to facilitate the lubricating oil in the hollow shell 81 to flow out, based on the above embodiment, please refer to Figure 1The upper part of the hollow shell 81 is higher than the lower part thereof, and the first oil guide pipe 82 and the second oil guide pipe 83 are both plugged into the lower part of the hollow shell 81. Thus, the lubricating oil in the hollow shell 81 can flow to the first oil guide pipe 82 and the second oil guide pipe 83 respectively by gravity, without the need to set up an additional drive, further reducing the manufacturing cost and weight of the gearbox.

[0081] Of course, the oil collector 8 may also include a small, lightweight driver for stirring the lubricating oil inside the hollow shell 81 to improve the oil supply efficiency of the oil collector 8 .

[0082] In order to facilitate the disassembly and adjustment of the oil collector 8, based on the above embodiment, please refer to Figure 1 The upper part of the hollow shell 81 is adjustably arranged on the housing through a mounting flange 84.

[0083] It is understandable that the upper part of the hollow shell 81 is connected to the mounting flange 84, and the mounting flange 84 is mounted on the housing by bolts. Therefore, it is not only convenient to disassemble and assemble the oil collector 8, but also the mounting flange 84 can be rotated by loosening the bolts to adjust the inclination angle of the hollow shell 81, so that it is convenient to manually adjust the oil collector 8 during maintenance or replacement, thereby ensuring that the oil collector 8 effectively collects oil.

[0084] In summary, the present invention has the following beneficial effects:

[0085] 1. The input shaft oil guide sleeve 4 / output shaft oil guide sleeve 7 are both arranged in the hollow cavity of the input shaft 1, without occupying additional internal space of the gearbox, which is beneficial to reducing the weight of the gearbox.

[0086] 2. The oil collector 8 is located at the bottom end adjacent to the input shaft 1, and can effectively collect the lubricating oil thrown off the input gear 3. The oil collection is convenient, which is beneficial to improving the lubrication effect and lubrication efficiency of the gear box.

[0087] 3. The oil collector 8 can supply oil to the input shaft oil guide sleeve 4 / output shaft oil guide sleeve 7 at the same time to lubricate the input bearing structure 2 and the output bearing structure at the same time, which greatly improves the lubrication effect and lubrication efficiency of the gearbox.

[0088] 4. The lubricating oil thrown out by the input shaft oil guide sleeve 4 / output shaft oil guide sleeve 7 can flow into the input bearing structure 2 / output bearing structure by its own gravity, without the need to set up a forced lubrication component, such as a lubrication pump, which greatly reduces the weight and manufacturing cost of the gearbox.

[0089] In this specification, relational terms such as first and second are used merely to distinguish one entity from other entities, but do not necessarily require or imply any such actual relationship or order between these entities.

[0090] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0091] The above is a detailed introduction to the suspended monorail gearbox provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A suspended monorail gearbox, characterized in that: include: case; An input shaft (1) is rotatably disposed in the housing and is inclined relative to a horizontal plane, an input bearing structure (2) is provided between the input shaft (1) and the housing, and a first oil leakage channel communicating with an inner cavity of the housing is provided on a shaft wall of the input shaft (1) located between the highest end of the input shaft (1) and the input bearing structure (2); An output shaft (5) is rotatably disposed in the housing and is in transmission cooperation with the input shaft (1), and an output bearing structure is provided between the output shaft (5) and the housing; An input shaft oil guide sleeve (4) is inserted into the hollow cavity of the input shaft (1) and fixedly connected to the input shaft (1); a second oil leakage channel corresponding to and communicating with the first oil leakage channel is provided on the sleeve wall of the input shaft oil guide sleeve (4); An oil collector (8) is disposed in the housing and adjacent to the lowest end of the input shaft (1); a liquid inlet of the oil collector (8) faces the input shaft (1), and a liquid outlet is connected to the interior of the input shaft oil guide sleeve (4) via a first oil guide pipe (82).

2. The suspended monorail gearbox according to claim 1, characterized in that: It also comprises an output shaft oil guide sleeve (7), the output shaft oil guide sleeve (7) being inserted into the hollow cavity of the output shaft (5) and fixedly connected to the output shaft (5); A third oil leakage passage communicating with the inner cavity of the housing is provided on the shaft wall of the output shaft (5) located between the rear end of the output shaft (5) away from the input shaft (1) and the output bearing structure; a fourth oil leakage passage corresponding to the third oil leakage passage is provided on the sleeve wall of the output shaft oil guide sleeve (7); and a liquid outlet of the oil collector (8) is also connected to the interior of the output shaft oil guide sleeve (7) via a second oil guide pipe (83).

3. The suspended monorail gearbox according to claim 2, characterized in that: The oil collector (8) is located between the lowest end of the input shaft (1) and the front end of the output shaft (5) adjacent to the input shaft (1), and is arranged adjacent to the lowest end of the input shaft (1).

4. The suspended monorail gearbox according to claim 2, characterized in that: The input shaft oil guide sleeve (4) is arranged to extend along the axial direction of the input shaft (1), and the diameter of the input shaft oil guide sleeve (4) gradually increases in a direction from the lowest end to the highest end of the input shaft (1); And / or, the output shaft oil guide sleeve (7) is arranged to extend along the axial direction of the output shaft (5), and the diameter of the output shaft oil guide sleeve (7) gradually increases in the direction from the front end of the output shaft (5) to the rear end thereof.

5. The suspended monorail gearbox according to claim 2, characterized in that: One end of the input shaft oil guide sleeve (4) passes through the lowest end of the input shaft (1) and extends out of the input shaft (1) to communicate with the first oil guide pipe (82); And / or, one end of the output shaft oil guide sleeve (7) passes through the front end of the output shaft (5) and extends out of the output shaft (5) to communicate with the second oil guide pipe (83).

6. The suspended monorail gearbox according to claim 2, characterized in that: The first oil leakage passage comprises a plurality of first oil leakage holes (11) arranged at equal intervals around the axis of the input shaft (1), and the second oil leakage passage comprises a plurality of second oil leakage holes (41) connected to the plurality of first oil leakage holes (11) in a one-to-one correspondence; And / or, the third oil leakage channel comprises a plurality of third oil leakage holes arranged at equal intervals around the axis of the output shaft (5), and the fourth oil leakage channel comprises a plurality of fourth oil leakage holes connected in a one-to-one correspondence with the plurality of third oil leakage holes.

7. The suspended monorail gearbox according to any one of claims 2 to 6, characterized in that: The oil collector (8) comprises a hollow shell (81), the upper side wall of the hollow shell (81) being arranged obliquely toward the input shaft (1), and the upper side wall of the hollow shell (81) extending along its length direction to be provided with the liquid inlet, and the left side wall and the right side wall of the hollow shell (81) being respectively plugged with the first oil guide pipe (82) and the second oil guide pipe (83).

8. The suspended monorail gearbox according to claim 7, characterized in that: The interior of the hollow shell (81) is provided with a partition plate extending along its length direction, so as to divide the interior of the hollow shell (81) into two liquid collecting tanks along the left-right direction.

9. The suspended monorail gearbox according to claim 7, characterized in that: The upper portion of the hollow shell (81) is higher than the lower portion thereof, and the first oil guide pipe (82) and the second oil guide pipe (83) are both plugged into the lower portion of the hollow shell (81).

10. The suspended monorail gearbox according to claim 9, characterized in that: The upper portion of the hollow shell (81) is adjustably mounted on the housing via a mounting flange (84).

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