Locomotive driving device and locomotive driving device mounting method

Abstract

The invention provides a locomotive driving device and a locomotive driving device mounting method.The device comprises a connecting and supporting assembly, the connecting and supporting assembly comprises a threaded connecting piece and a guiding piece, the threaded connecting piece and the guiding piece are connected between a motor shell and a journal sticking oil box in a replaceable mode, and the guiding piece comprises a guiding sliding part and a limiting part; the first end of the guide sliding part can be fixed to the motor shell, and the limiting part is connected to the second end of the guide sliding part; when the journal sticking oil box is installed on the motor shell, the journal sticking oil box and the motor shell are relatively fixed through the threaded connecting piece. When the motor shell and the journal sticking oil box are in a separated state, the journal sticking oil box slides between the motor shell and the limiting part in the extending direction of the guide sliding part. Manual carrying of the journal sticking oil box is avoided, an operation space is formed through sliding of the journal sticking oil box relative to the guiding piece so as to complete locomotive overhaul, the operation difficulty of locomotive overhaul is reduced, and the locomotive overhaul operation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of locomotive drive technology, and in particular to a locomotive drive device and a locomotive drive device installation method. Background Art

[0002] At present, the running gear wheel drive devices of diesel locomotives and some electric locomotives on my country's railway trunk lines all adopt bearing bushing drive, and use bearing bushing oil boxes to lubricate the bearing bushings and drive shafts. During the operation of the locomotive, bearing bushings may suffer from bearing crushing, oil spillage and other faults, which require rapid replacement or repair of bearing bushings.

[0003] The existing shaft oil box is a casting, which is connected to the motor housing. During maintenance work, it is necessary to manually knock on the shaft oil box to separate it from the motor housing and replace the bearing shell, and then connect the shaft oil box to the motor housing.

[0004] However, the axle-holding oil box is large in size and weight, which makes it more difficult to disassemble and transport, and the space for locomotive maintenance operations is limited, which in turn reduces the locomotive maintenance efficiency. Summary of the invention

[0005] The present application provides a locomotive drive device and a locomotive drive device installation method, which can improve the maintenance efficiency of the locomotive.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] In a first aspect, the present application provides a locomotive drive device, including a motor housing, a drive shaft assembly, an axle-holding oil box, and a connection support assembly, wherein the drive shaft assembly includes a drive shaft and a bearing bush clamped on the outside of the drive shaft, the motor housing is supported on the drive shaft assembly, and the axle-holding oil box is configured to provide lubricating oil to the drive shaft assembly; the axle-holding oil box has a connection through hole, and a mounting hole is provided on the motor housing;

[0008] The connecting support assembly includes a threaded connector and a guide member, the threaded connector and the guide member are replaceably inserted into the connecting through hole and the mounting hole, the guide member includes a guide sliding portion and a limiting portion, the first end of the guide sliding portion can be fixed in the mounting hole, and the limiting portion is connected to the second end of the guide sliding portion;

[0009] When the shaft-holding oil box is installed on the motor housing, the threaded connector passes through the connecting through hole and the mounting hole in sequence to relatively fix the shaft-holding oil box and the motor housing;

[0010] When the motor housing and the shaft-holding oil box are in a separated state, the guide member is passed through the connecting through hole and the mounting hole, and the limiting portion is blocked on the side of the connecting through hole away from the mounting hole, so that the shaft-holding oil box is slidably arranged between the motor housing and the limiting portion along the extension direction of the guide sliding portion.

[0011] As a possible implementation, the guide sliding part is a rotating body, and the guide sliding part includes a sliding body and a connecting part, and the sliding body extends along the axial direction of the connecting through hole;

[0012] The connecting portion is connected to the first end of the sliding body, and the connecting portion is detachably connected to the mounting hole along the axial direction of the connecting through hole.

[0013] As a possible implementation, the connecting portion has an external thread, and the external thread extends along the axial direction of the connecting portion;

[0014] The external thread matches the internal thread of the mounting hole.

[0015] As a possible implementation manner, the diameter of the sliding body is smaller than or equal to the diameter of the connecting through hole.

[0016] As a possible implementation, the circumferential outer wall surface of the sliding body is a smooth surface.

[0017] As a possible implementation manner, an extension length of the sliding body along the axial direction of the connecting through hole is greater than or equal to 500 mm.

[0018] As a possible implementation, the limiting portion is a bolt head.

[0019] As a possible implementation, the radial length of the limiting portion is greater than the diameter of the connecting through hole.

[0020] In a second aspect, the present application provides a method for installing a locomotive drive device, which is applied to any of the above locomotive drive devices, and the method comprises the following steps:

[0021] Remove some threaded connectors in the connection support assembly of the locomotive drive device, wherein the threaded connectors connect the axle-holding oil box and the motor housing;

[0022] The guide member in the connection support assembly is inserted into the connection through hole and the mounting hole behind the threaded connection member, and the guide member and the mounting hole are relatively fixed;

[0023] The axle-holding oil box in the driving device of the locomotive is driven to slide away from the motor housing along the extending direction of the guide member;

[0024] Performs maintenance operations on drive shaft assemblies in locomotive drives.

[0025] As a possible implementation, after the drive shaft assembly in the locomotive drive device is overhauled, the method further includes:

[0026] Drive the shaft-holding oil box to slide along the guide sliding part to the motor housing, and remove the guide part;

[0027] The threaded connector is passed through the connecting through hole and the mounting hole after the guide member is removed to connect the shaft holding oil box and the motor housing.

[0028] The present application provides a locomotive drive device and a method for installing the locomotive drive device. The device includes a motor housing, a drive shaft assembly, an axle-holding oil box and a connection support assembly. The drive shaft assembly includes a drive shaft and a bearing bush clamped on the outside of the drive shaft. The motor housing is supported on the drive shaft assembly. The axle-holding oil box is constructed to provide lubricating oil to the drive shaft assembly. The axle-holding oil box has a connecting through hole, and a mounting hole is provided on the motor housing. The connection support assembly includes a threaded connector and a guide member, and the threaded connector and the guide member are replaceably inserted into the connecting through hole and the mounting hole. The guide member It includes a guide sliding part and a limiting part, the first end of the guide sliding part can be fixed in the mounting hole, and the limiting part is connected to the second end of the guide sliding part; when the axle holding oil box is installed on the motor housing, the threaded connector passes through the connecting through hole and the mounting hole in sequence to fix the axle holding oil box and the motor housing relatively; when the motor housing and the axle holding oil box are in a separated state, the guide part is passed through the connecting through hole and the mounting hole, and the limiting part is blocked on the side of the connecting through hole away from the mounting hole, so that the axle holding oil box is slidably arranged between the motor housing and the limiting part along the extension direction of the guide sliding part. Compared with the traditional locomotive maintenance operation, the present application avoids manual handling of the axle holding oil box, and forms a working space through the relative sliding of the axle holding oil box relative to the guide part to complete the locomotive maintenance work, thereby reducing the operational difficulty of the locomotive maintenance work, and further improving the operating efficiency of the locomotive maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application 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 some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of the connection state of the motor housing and the axle-holding oil box in the locomotive drive device provided in an embodiment of the present application;

[0031] Figure 2 A schematic structural diagram of the motor housing and the axle-holding oil box in the locomotive drive device provided in an embodiment of the present application in a separated state;

[0032] Figure 3 A schematic diagram of the structure of a guide member in a locomotive drive device provided in an embodiment of the present application;

[0033] Figure 4 The process of the locomotive drive device installation method provided in the embodiment of the present application Figure 1 ;

[0034] Figure 5 The process of the locomotive drive device installation method provided in the embodiment of the present application Figure 2 .

[0035] Description of reference numerals:

[0036] 100-locomotive drive device; 110-motor housing; 120-drive shaft assembly; 130-shaft oil box; 140-connection support assembly;

[0037] 1101-mounting hole;

[0038] 1201-driving shaft; 1202-bearing bush; 1203-first opening;

[0039] 1301-shaft-holding oil box housing; 1302-accommodating cavity; 1303-second opening; 1304-connecting through hole;

[0040] 1401-threaded connector; 1402-guide member; 1403-sliding body; 1404-connecting portion; 1405-limiting portion; 1406-guide sliding portion. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0042] At present, the running gear wheel drive devices of diesel locomotives and some electric locomotives on my country's railway trunk lines all adopt bearing bushing drive, and use bearing bushing oil boxes to lubricate the bearing bushings and drive shafts. During the operation of the locomotive, bearing bushings may suffer from bearing crushing, oil spillage and other faults, which require rapid replacement or repair of bearing bushings.

[0043] The existing shaft oil box is a casting, which is connected to the motor housing. During maintenance work, it is necessary to manually knock on the shaft oil box to separate the shaft oil box from the motor housing and replace the bearing shell before connecting the shaft oil box to the motor housing.

[0044] However, the axle-holding oil box is large in size and weight, which increases the difficulty of manual disassembly and transportation. In addition, the running gear of the locomotive is located at the bottom of the locomotive, so the space for maintenance operations is limited. These factors will lead to a decrease in the maintenance efficiency of the locomotive.

[0045] In order to overcome the defects in the prior art, the present application provides a locomotive drive device and a locomotive drive device installation method, the device includes a connection support assembly, the connection support assembly includes a threaded connector and a guide member, the threaded connector and the guide member are replaceably connected between the motor housing and the axle-holding oil box, the guide member includes a guide sliding part and a limiter, the first end of the guide sliding part can be fixed to the motor housing, and the limiter is connected to the second end of the guide sliding part; when the axle-holding oil box is installed on the motor housing, the threaded connector is used to relatively fix the axle-holding oil box and the motor housing; when the motor housing and the axle-holding oil box are in a separated state, the axle-holding oil box slides between the motor housing and the limiter along the extension direction of the guide sliding part. Compared with the traditional locomotive maintenance operation, the manual handling of the axle-holding oil box is avoided, and the sliding of the axle-holding oil box relative to the guide member forms an operating space to complete the locomotive maintenance, thereby reducing the difficulty of the locomotive maintenance work, and thus improving the operation efficiency of the locomotive maintenance.

[0046] The content of the present invention will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can understand the content of the present invention more clearly and in detail.

[0047] In the first aspect, the present application provides a locomotive drive device 100, including a motor housing 110, a drive shaft assembly 120, an axle-holding oil box 130 and a connecting support assembly 140, the drive shaft assembly 120 including a drive shaft 1201 and a bearing 1202 clamped on the outside of the drive shaft 1201, the motor housing 110 is supported on the drive shaft assembly 120, and the axle-holding oil box 130 is constructed to provide lubricating oil to the drive shaft assembly 120; the axle-holding oil box 130 has a connecting through hole 1304, and the motor housing 110 is provided with a mounting hole 1101.

[0048] Figure 1 A schematic structural diagram of the connection status of the motor housing and the axle-holding oil box in the locomotive drive device provided in an embodiment of the present application. Figure 2 A structural schematic diagram of the separated state of the motor housing and the axle-holding oil box in the locomotive drive device provided in an embodiment of the present application.

[0049] like Figure 1 and Figure 2As shown, the drive shaft assembly 120 includes a drive shaft 1201 and a bearing 1202. The bearing 1202 is sleeved on the drive shaft 1201. The bearing 1202 is provided with a first opening 1203. The first opening 1203 is opposite to the shaft-holding oil box 130. The shaft-holding oil box 130 includes a shaft-holding oil box housing 1301. The shaft-holding oil box housing 1301 is opposite to the motor housing 110. The drive shaft assembly 120 is relatively wrapped by the shaft-holding oil box 130 and the motor housing 110. The shaft-holding oil box 130 It also includes an oil collector (not shown in the figure) and a accommodating chamber 1302. The side of the shaft oil box housing 1301 facing the drive shaft assembly 120 has a second opening 1303. The oil collector is located in the accommodating chamber 1302. The second opening 1303 is opposite to the first opening 1203 on the bearing 1202. The oil collector is connected to the cavity wall of the accommodating chamber 1302. The oil collector supplies the lubricating oil in the accommodating chamber 1302 to the drive shaft assembly 120 through the second opening 1303 and the first opening 1203.

[0050] The connecting support assembly 140 is used to adjust the connection state between the motor housing 110 and the shaft-holding oil box 130, so that the motor housing 110 and the shaft-holding oil box 130 remain in a connected state or a separated state. The side of the motor housing 110 is provided with a mounting hole 1101, and the two opposite sides of the shaft-holding oil box housing 1301 are provided with connecting through holes 1304, the connecting through holes 1304 and the mounting holes 1101 are opposite, and the connecting support assembly 140 is connected in the mounting holes 1101 and the connecting through holes 1304.

[0051] Specifically, the connection support assembly 140 includes a threaded connector 1401 and a guide member 1402, which are replaceably disposed in the connection through hole 1304 and the mounting hole 1101, and the guide member 1402 includes a guide sliding portion 1406 and a stopper 1405, a first end of the guide sliding portion 1406 can be fixed in the mounting hole 1101, and the stopper 1405 is connected to a second end of the guide sliding portion 1406. The threaded connector 1401 and the guide member 1402 are replaceably connected between the motor housing 110 and the shaft-holding oil box housing 1301, so that the shaft-holding oil box 130 can have different connection modes relative to the motor housing 110.

[0052] The threaded connector 1401 passes through the connecting through hole 1304 and the mounting hole 1101 in sequence. At this time, the shaft-holding oil box 130 is installed on the motor housing 110, that is, the shaft-holding oil box 130 and the motor housing 110 are relatively fixedly connected.

[0053] The guide member 1402 is inserted through the connecting through hole 1304 and the mounting hole 1101, the motor housing 110 and the axle holding oil box 130 are in a separated state, and the limiting portion 1405 is blocked on the side of the connecting through hole 1304 away from the mounting hole 1101, so that the axle holding oil box 130 is slidably arranged between the motor housing 110 and the limiting portion 1405 along the extending direction of the guide sliding portion 1406. During the sliding of the axle holding oil box 130 along the guide sliding portion 1406, a certain distance is formed between the axle holding oil box 130 and the motor housing 110. When the components in the locomotive drive device 100 are damaged, the damaged components in the locomotive drive device 100 can be repaired and replaced without completely disassembling the axle holding oil box 130, especially the repair and replacement of the bearing bush 1202.

[0054] Compared with traditional locomotive maintenance operations, the structural setting of the guide member 1402 can avoid manual disassembly and transportation of the axle holding oil box 130. The sliding of the axle holding oil box 130 relative to the guide member 1402 forms a working space to complete the maintenance of the locomotive, thereby reducing the operational difficulty of the locomotive maintenance work and further improving the operating efficiency of the locomotive maintenance.

[0055] In some embodiments, the guide sliding portion 1406 is a rotating body, and the guide sliding portion 1406 includes a sliding body 1403 and a connecting portion 1404, and the sliding body 1403 extends axially along the connecting through hole 1304; the connecting portion 1404 is connected to the first end of the sliding body 1403, and the connecting portion 1404 is detachably connected to the mounting hole 1101 along the axial direction of the connecting through hole 1304.

[0056] Figure 3 A schematic diagram of the structure of a guide member in a locomotive drive device provided in an embodiment of the present application.

[0057] Combination Figure 2 and Figure 3 , the guide member 1402 includes a guide sliding portion 1406, and the cross-sectional shape of the guide sliding portion 1406 is adapted to the connecting through hole 1304 and the mounting hole 1101. It is not difficult to understand that the guide sliding portion 1406 is a rotating body, and the guide sliding portion 1406 includes a sliding body 1403 and a connecting portion 1404, and the sliding body 1403 and the connecting portion 1404 both extend along the axial direction of the connecting through hole 1304, and the connecting portion 1404 is connected to the first end of the sliding body 1403, and the first end of the sliding body 1403 faces the mounting hole 1101. Specifically, the connecting portion 1404 and the sliding body 1403 pass through the connecting through hole 1304, and the connecting portion 1404 and the mounting hole 1101 are detachably connected. After the internal inspection of the locomotive drive device 100 is completed, the guide member 1402 is removed and the threaded connector 1401 is used to keep the motor housing 110 and the shaft-holding oil box 130 fixedly connected.

[0058] Based on the above embodiment, the connection part 1404 has an external thread, which extends along the axial direction of the connection part 1404; the external thread is adapted to the internal thread of the mounting hole 1101. The connection part 1404 and the mounting hole 1101 can be detachably connected by threaded connection.

[0059] In order to facilitate the installation of the guide member 1402 and the relative sliding action of the shaft-holding oil box 130 along the guide member 1402, in some embodiments, the diameter of the sliding body 1403 ( Figure 3 D1) is less than or equal to the diameter of the connecting through hole 1304 ( Figure 2 It is not difficult to understand that the guide member 1402 in this embodiment can smoothly pass through the connecting through hole 1304 and connect with the mounting hole 1101.

[0060] In a specific implementation, the circumferential outer wall surface of the sliding body 1403 is a smooth surface. It should be noted that the smooth surface in this embodiment is relative to the connecting portion 1404, that is, the axial outer side wall of the sliding body 1403 has no other structure, and the sliding of the shaft-holding oil box 130 is ensured only by the smooth circumferential outer wall surface of the sliding body 1403.

[0061] In some embodiments, the extending length of the sliding body 1403 along the axial direction of the connecting through hole 1304 ( Figure 3 L1 marked in (1) is greater than or equal to 500mm. When the axle-holding oil box 130 slides axially relative to the motor housing 110 along the guide member 1402, the sliding distance is greater than or equal to 500mm. At this time, the distance between the axle-holding oil box 130 and the motor housing 110 can meet the requirements for the maintenance of the components in the locomotive drive unit 100. It should be noted that during the maintenance of the locomotive, the locomotive drive unit 100 is installed at the bottom of the locomotive, that is to say, the relative sliding distance between the axle-holding oil box 130 and the motor housing 110 is limited. Although this embodiment provides a feasible implementation method, the length of the sliding body 1403 can be adjusted according to actual usage.

[0062] The limiting portion 1405 is connected to the second end of the sliding body 1403. The limiting portion 1405 is used to limit the maximum sliding position of the shaft holding oil box 130 on the guide member 1402. The limiting portion 1405 can also prevent the shaft holding oil box 130 from sliding off the sliding body 1403 to ensure the personal safety of the staff.

[0063] Specifically, the limiting portion 1405 is a bolt head. When a rotational torque is applied to the limiting portion 1405, the guide member 1402 rotates as a whole, and accordingly, the external thread of the connecting portion 1404 and the internal thread of the mounting hole 1101 are connected or disconnected. The bolt head design of the limiting portion 1405 allows the guide member 1402 to be disassembled using a corresponding bolt wrench.

[0064] In some embodiments, the radial length of the stopper 1405 ( Figure 3 The L2 of the middle column is larger than the diameter of the connecting through hole 1304 ( Figure 2 At this time, the end surface of the stopper 1405 relative to the shaft-holding oil box housing 1301 can completely stop the shaft-holding oil box 130.

[0065] In order to ensure the structural safety and stability of the installation between the guide member 1402 and the mounting hole 1101 on the motor housing 110 , the extension length of the external thread along the axial direction of the sliding body 1403 is less than or equal to the hole depth of the mounting hole 1101 .

[0066] In some specific embodiments, the connection support assembly 140 includes four threaded connectors 1401 and two guide members 1402. The four threaded connectors 1401 are distributed at the four corners of the shaft-holding oil box 130. The four threaded connectors 1401 pass through the connection through-holes 1304 and the mounting holes 1101 for connection. Correspondingly, the motor housing 110 and the shaft-holding oil box 130 are kept relatively fixedly connected. During maintenance work, the motor housing 110 and the shaft-holding oil box 130 need to be in a separated state. At this time, the two threaded connectors 1401 on the bottom side along the height direction of the shaft-holding oil box 130 are removed, and then the two guide members 1402 are installed at the corresponding positions on the bottom side of the shaft-holding oil box 130. After that, the two threaded connectors 1401 on the top side of the shaft-holding oil box 130 can be removed. In this embodiment, the two guide members 1402 replace the two threaded connectors 1401 on the bottom side of the shaft holding oil box 130. Under this connection method, the shaft holding oil box 130 can be driven to slide along the sliding body 1403 of the guide members 1402, and the shaft holding oil box 130 and the motor housing 110 are separated.

[0067] The locomotive drive device in the present application includes a motor housing, a drive shaft assembly, an axle-holding oil box and a connecting support assembly, wherein the drive shaft assembly includes a drive shaft and a bearing bushing clamped on the outside of the drive shaft, the motor housing is supported by the drive shaft assembly, and the axle-holding oil box is constructed to provide lubricating oil to the drive shaft assembly; the axle-holding oil box has a connecting through hole, and a mounting hole is provided on the motor housing; the connecting support assembly includes a threaded connector and a guide member, the threaded connector and the guide member are replaceably inserted into the connecting through hole and the mounting hole, the guide member includes a guide sliding portion and a limiting portion, the first end of the guide sliding portion can be fixed in the mounting hole, and the limiting portion is connected to the second end of the guide sliding portion; when the axle-holding oil box is installed on the motor housing, the threaded connector passes through the connecting through hole and the mounting hole in sequence to relatively fix the axle-holding oil box and the motor housing; when the motor housing and the axle-holding oil box are in a separated state, the guide member is inserted into the connecting through hole and the mounting hole, and the limiting portion is blocked on the side of the connecting through hole away from the mounting hole, so that the axle-holding oil box is slidably arranged between the motor housing and the limiting portion along the extension direction of the guide sliding portion.

[0068] Compared with the traditional locomotive maintenance operation, the manual handling of the axle-holding oil box is avoided, and the sliding of the axle-holding oil box relative to the guide piece forms an operating space to complete the locomotive maintenance, thereby reducing the difficulty of locomotive maintenance work and improving the efficiency of locomotive maintenance. In addition, during the disassembly process, the lubricating oil in the axle-holding oil box is no longer released, and the oil collector does not need to be removed, which can effectively avoid the waste of lubricating oil and the pollution of lubricating oil and oil collector.

[0069] In addition, the present application provides a locomotive drive device installation method, which is applied to any of the locomotive drive devices 100 described above. Figure 4 The process of the locomotive drive device installation method provided in the embodiment of the present application Figure 1 ,like Figure 4 As shown, the method comprises the following steps:

[0070] S201. Remove some threaded connectors in the connection support assembly of the locomotive drive device, wherein the threaded connectors connect the axle oil box and the motor housing.

[0071] The connecting support assembly includes four threaded connectors 1401, and the four threaded connectors 1401 are distributed at the four corners where the axle holding oil box 130 and the motor housing 110 are connected. When the locomotive drive device 100 needs to be repaired, first remove the two threaded connectors 1401 at the bottom where the axle holding oil box 130 and the motor housing 110 are connected, and then install the guide 1402 at these two positions.

[0072] S202, inserting the guide member in the connection support assembly into the connection through hole and the mounting hole after the threaded connection member is removed, and fixing the guide member and the mounting hole relatively.

[0073] Specifically, the guide member 1402 is installed at two corners on the bottom side of the shaft holding oil box 130. It is not difficult to understand that the guide member 1402 passes through the connecting hole 1304, and the connecting portion 1404 of the guide member 1402 and the mounting hole 1101 on the motor housing 110 are relatively fixedly connected by threads.

[0074] S203, driving the axle-holding oil box in the locomotive driving device to slide along the extension direction of the guide member away from the motor housing.

[0075] After the two guide members 1402 are installed in S202, the two threaded connectors 1401 on the top side of the shaft-holding oil box 130 are removed. Then, the shaft-holding oil box 130 is driven to slide away from the motor housing 110 along the extending direction of the guide members 1402 until the shaft-holding oil box 130 slides to the limiting portion 1405 of the guide member 1402.

[0076] S204, performing maintenance operations on the drive shaft assembly in the locomotive drive device.

[0077] After the axle-holding oil box 130 is away from the motor housing 110 and is stable, the drive shaft assembly 120 in the locomotive drive device 100 can be inspected and repaired through the space between the axle-holding oil box 130 and the motor housing 110 .

[0078] The method provided in this embodiment replaces the threaded connector with a guide piece of the locomotive drive device 100, thereby facilitating the separation of the axle oil box 130 and the motor housing 110, reducing the process of manual participation, and improving the work efficiency of disassembly and maintenance of the axle oil box 130 and the motor housing 110.

[0079] In order to facilitate the installation of the shaft-holding oil box 130 and the motor housing 110 after overhaul, the present application may also provide an implementation method.

[0080] Figure 5 The process of the locomotive drive device installation method provided in the embodiment of the present application Figure 2 .like Figure 5 As shown, in the specific implementation process, this installation method includes steps S201 to S204 of the locomotive drive device installation method in the above embodiment, which will not be repeated here. In addition, after the above S204, the drive shaft assembly in the locomotive drive device is overhauled, the following operations need to be performed:

[0081] S205, drive the shaft-holding oil box to slide along the guide sliding part to the motor housing, and remove the guide part.

[0082] The shaft-holding oil box 130 is pushed along the guide sliding portion 1406 to approach the motor housing 110. When the shaft-holding oil box 130 and the motor housing 110 are in contact, the two threaded connectors 1401 are first passed through the two connecting through holes 1304 on the top side of the shaft-holding oil box 130, and the two threaded connectors 1401 are fixedly connected to the two corresponding mounting holes 1101 on the motor housing 110. Then the two guide components 1402 are removed.

[0083] S206. Pass the threaded connector through the connecting through hole and the mounting hole after the guide member is removed to connect the shaft holding oil box and the motor housing.

[0084] After S205 is completed, the two guide members 1402 are removed, and correspondingly, two threaded connectors 1401 are installed at corresponding positions. The two threaded connectors 1401 are respectively inserted into the connecting through holes 1304, and the two threaded connectors 1401 are respectively threadedly connected to the corresponding mounting holes, so that the shaft holding oil box 130 and the motor housing 110 remain fixedly connected.

[0085] The method provided in this embodiment is applied to a locomotive drive device, and can simply and quickly complete the maintenance and installation of the locomotive.

[0086] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0087] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0088] It should be easily understood that “on,” “above,” and “over” in this application should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above something” or “over,” but also may include the meaning of “above something” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0089] In addition, spatially relative terms, such as "below," "below," "below," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90° or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A locomotive driving device, characterized in that: It comprises a motor housing, a drive shaft assembly, a shaft-holding oil box and a connection support assembly, wherein the drive shaft assembly comprises a drive shaft and a bearing bush clamped on the outside of the drive shaft, the motor housing is supported by the drive shaft assembly, and the shaft-holding oil box is configured to provide lubricating oil to the drive shaft assembly; the shaft-holding oil box has a connection through hole, and a mounting hole is provided on the motor housing; The connection support assembly includes a threaded connection member and a guide member, the threaded connection member and the guide member are replaceably inserted into the connection through hole and the mounting hole, the guide member includes a guide sliding portion and a limiting portion, the first end of the guide sliding portion can be fixed in the mounting hole, and the limiting portion is connected to the second end of the guide sliding portion; When the shaft-holding oil box is installed on the motor housing, the threaded connector passes through the connecting through hole and the mounting hole in sequence to relatively fix the shaft-holding oil box and the motor housing; When the motor housing and the shaft-holding oil box are in a separated state, the guide member is passed through the connecting through hole and the mounting hole, and the limiting portion is blocked on the side of the connecting through hole away from the mounting hole, so that the shaft-holding oil box is slidably arranged between the motor housing and the limiting portion along the extension direction of the guide sliding portion.

2. The locomotive driving device according to claim 1, characterized in that: The guide sliding part is a rotating body, and the guide sliding part includes a sliding body and a connecting part, and the sliding body extends along the axial direction of the connecting through hole; The connecting portion is connected to the first end of the sliding body, and the connecting portion is detachably connected to the mounting hole along the axial direction of the connecting through hole.

3. The locomotive driving device according to claim 2, characterized in that: The connecting portion has an external thread, and the external thread extends along the axial direction of the connecting portion; The external thread is matched with the internal thread of the mounting hole.

4. The locomotive driving device according to claim 2 or 3, characterized in that: The diameter of the sliding body is smaller than or equal to the diameter of the connecting through hole.

5. The locomotive driving device according to claim 4, characterized in that: The circumferential outer wall surface of the sliding body is a smooth surface.

6. The locomotive driving device according to claim 5, characterized in that: An extension length of the sliding body along the axial direction of the connecting through hole is greater than or equal to 500 mm.

7. The locomotive driving device according to any one of claims 1 to 3, characterized in that: The limiting portion is a bolt head.

8. The locomotive driving device according to claim 7, characterized in that: The radial length of the limiting portion is greater than the diameter of the connecting through hole.

9. A method for installing a locomotive drive device, characterized in that: Applied to the locomotive drive device according to any one of claims 1 to 8, the method comprises the following steps: Removing part of the threaded connectors in the connection support assembly of the locomotive drive device, wherein the threaded connectors connect the axle-holding oil box and the motor housing; The guide member in the connection support assembly is inserted through the connection through hole and the mounting hole after the threaded connection member is removed, and the guide member and the mounting hole are relatively fixed; Driving the axle-holding oil box in the locomotive drive device to slide along the extending direction of the guide member away from the motor housing; Perform maintenance operations on the drive shaft assembly in the locomotive drive unit.

10. The method for installing a locomotive drive device according to claim 9, characterized in that: After the drive shaft assembly in the locomotive drive device is overhauled, the method further includes: Drive the shaft-holding oil box to slide along the guide sliding portion to the motor housing, and remove the guide member; The threaded connector is passed through the connecting through hole and the mounting hole after the guide member is removed to connect the shaft holding oil box and the motor housing.

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