Motor mounting structure, bogie and motor dismounting method

Abstract

The application discloses a motor mounting structure, a bogie and a motor dismounting method. The motor mounting structure is matched with a mounting seat one and a mounting seat two, realizes the installation and positioning of the motor, and forms an avoiding passage one between two adjacent groups of first positioning parts and an avoiding passage two between two adjacent groups of second positioning parts. The design of the avoiding passages provides convenience for the dismounting of the motor in a small space. The bogie has reasonable space utilization, high motor stability and the convenience of motor dismounting, and can meet the efficient maintenance requirements of the motor dismounting and mounting without a vehicle during maintenance. The motor dismounting method of the application dismounts the hoisting rod by decoupling the coupling joint, rotates the gear box and the coupling joint two, creates an axial dismounting space, and can quickly make the motor fall downwards. The dismounting method of the application reconstructs the motor dismounting process, exchanges the space, creates available operation space, greatly simplifies the dismounting work, and obviously reduces the cost and increases the efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bogies, in particular to a motor mounting structure, a bogie and a motor dismounting method. BACKGROUND

[0002] As the core power component of the driving device on the power bogie, the traction motor has extremely high reliability requirements for suspension installation. The general installation and fixing method is mainly the suspension type, that is, the traction motor is installed and fixed on the mounting seat of the bogie frame, and a rigid and elastic fixed connection structure is adopted. In order to prevent the traction motor from falling on the track and causing a safety accident due to the failure of the traction motor fixed installation connection structure during vehicle operation, a traction motor anti-falling device is arranged at the traction motor or the mounting seat of the frame. When the traction motor suspension installation structure fails, the traction motor anti-falling device will work to effectively prevent the traction motor from falling on the track.

[0003] In the prior art, more and more track locomotives have been widely used, and there are many types of track transportation vehicles, mainly including subways, light rails, magnetic levitation, city railways, tramcars and the like. The main structural components of the track transportation vehicle include a vehicle body and a bogie, wherein the vehicle body is arranged on the bogie, and the bogie plays the role of bearing the load of the vehicle and ensuring the curve passing of the vehicle. The bogie is divided into a power bogie and a non-power bogie, and is generally composed of a frame, a suspension device, a traction device, a braking device, a driving device (non-power bogie without) and an auxiliary device.

[0004] As the power source of the track vehicle, the traction motor plays an important role and needs to be regularly overhauled and maintained. During the operation of the vehicle, the traction motor often needs to be dismounted for overhaul and maintenance due to the inconsistent overhaul period with other parts of the vehicle or occasional quality problems.

[0005] The existing traction motor dismounting has the following problems:

[0006] Firstly, there is not enough available dismounting space: due to the compact structure of the bogie, the distance between the bogie and the rail surface is very small, the gap between the bogie and the vehicle body is very small, and the gap between the traction motor and other adjacent parts in the driving device is also very small, so that the available dismounting space is extremely limited; further, due to the huge wheel-rail impact during the operation of the bogie, each auxiliary part on the bogie needs to bear various complex loads, not only the strength and rigidity need to meet the design requirements, but also various anti-falling and anti-breaking devices need to be arranged on each part of the bogie for safety needs, which makes the structure of the bogie complex and the space compact, especially the power bogie needs to install the driving device, which makes the structure of the bogie more delicate and the space utilization more limited.

[0007] Secondly, the current disassembly process is complicated and tedious: the current anti-falling device on the traction motor is usually designed to be integrally cast or welded with the motor housing, ultimately forming a rigid structure that spans the center crossbeam of the frame and the axle. At this time, it is impossible for the traction motor to fall directly onto the track (it can only move upward to leave the frame). Although this structure solves the problems of motor installation and anti-falling, and improves the safety performance of the bogie traction motor operation, it also has the obvious disadvantage of not being able to disassemble or install quickly and conveniently. Therefore, when the traction motor needs to be replaced after a failure, it is usually necessary to frame the vehicle, separate the bogie and the car body, and then remove the traction motor from the bogie; or replace the traction motor by disassembling the wheelset and other drive units. However, it is extremely inconvenient to lift the car body. First, all connections such as the traction device, workshop connecting pipelines, and bogie onboard pipelines must be removed. Then, the car body must be lifted by a car lifting machine and then pushed out of the bogie. The fixing bolts of the traction motor must be removed, and the traction motor can only be repaired after it is taken out of the bogie. This maintenance process is time-consuming and labor-intensive, and the maintenance is difficult and intensive, and the workers' physical strength is severely exhausted.

[0008] The analysis of existing technologies is as follows:

[0009] 1. Among the more common technical solutions on site (such as the attached Figures 7 to 8 As shown, the traction motor is rigidly attached to the mounting bracket on the bogie on one side via upper and lower suspensions (the upper suspension is a long, uninterrupted horizontal mounting surface, while the lower suspension is two independent vertical mounting surfaces, which together restrict five degrees of freedom). It is secured with bolts (two mounting bolts on each side, for a total of four). A fixed anti-drop support structure is installed on the other side, positioned above the axle. The gap between the motor's periphery and the axle is very small, about 15mm. The entire motor structure spans between the bogie and axle, and the length of the upper suspension and anti-drop support structure is greater than the distance from the bogie mounting bracket to the axle. A disadvantage of this technical solution is that the traction motor cannot drop directly onto the track (it can only move upward to leave the frame).

[0010] II. The technical solution of a traction motor dismounting method for a rail transit vehicle bogie disclosed by a Chinese patent (publication number: CN107310563B), in which the traction motor is installed on the bogie mounting seat through three elastic joints (2 on top and 1 on bottom), the installation bolts of the elastic joints are dismounted first in the dismounting process, the motor is lifted to a certain height so that the elastic joint is completely placed on the mounting seat, the motor is translated towards the non-driving end, the elastic suspension of the traction motor can slide down to the trench from the gap between the two bogie mounting seats, and the purpose of dismounting the motor without lifting the bogie is achieved. The disadvantage of the technical solution is that there needs to be a large enough distance (greater than the lateral dimension of a single elastic suspension) between the non-driving end of the traction motor and the wheelset or the brake, however, with the increase of the power of the whole vehicle, the distance between the non-driving end of the traction motor and the wheelset or the brake is only about 30 mm, and bogies with such space arrangement (i.e. the technical solution of the patent with publication number CN107310563B) are rarely seen.

[0011] III. The technical solution of a bogie with convenient traction motor dismounting disclosed by a Chinese patent (publication number: CN110304090A), in which the traction motor is installed on the bogie mounting seat through four elastic joints (2 on top and 2 on bottom), the motor mounting surface is two parallel vertical surfaces, there are counterbores on the mounting surface, the steel sleeves in the elastic joints cooperate with the motor counterbores to realize positioning and prevent the motor from falling vertically, and then the four bolts are fastened and fixed on the bogie. When dismounting, the movable anti-falling bracket is removed, the four installation bolts are dismounted, and the four steel sleeves are pulled out, at which time the motor can freely fall. The disadvantage of the technical solution is that it is suitable for the traction motor with elastic installation, requires a large installation space, is not suitable for rigid suspension with compact structure, on the other hand, the four steel sleeves require high installation precision and are prone to deformation and damage due to uneven stress, and are difficult to pull out in actual operation.

[0012] In summary, there is an urgent need for a motor mounting structure, a bogie and a motor dismounting method to solve the problem of how to conveniently and easily dismount and replace the motor without lifting the bogie and dismounting the wheelset in the prior art. SUMMARY

[0013] The purpose of the present application is to provide a motor mounting structure, a bogie and a motor dismounting method to solve the problem of how to conveniently and easily dismount and replace the motor without lifting the bogie and dismounting the wheelset in the prior art, and the specific technical solution is as follows:

[0014] A motor mounting structure, comprising a mounting seat one, a mounting seat two and a vertical connecting piece.

[0015] The mounting base is provided with at least two groups of first positioning parts in a horizontal direction, and a vertical avoiding passage is arranged between two adjacent groups of first positioning parts;

[0016] The mounting base two is arranged on the motor to be installed; the mounting base two is provided with second positioning parts corresponding to the first positioning parts; a vertical avoiding passage two is arranged between two adjacent groups of second positioning parts;

[0017] In the horizontal direction, the width of the avoiding passage one is greater than the width of the second positioning part, and the width of the avoiding passage two is greater than the width of the first positioning part; the second positioning part is arranged on the first positioning part, and the second positioning part can slide relative to the first positioning part in the horizontal direction, so that the motor is positioned by the first positioning part and the second positioning part;

[0018] The vertical connecting piece is vertically arranged and is used for connecting the first positioning part and the second positioning part.

[0019] Preferably, the top surface of the first positioning part is a horizontal surface A, the horizontal surface A is provided with a protrusion, the second positioning part is provided with a mounting slot in the horizontal direction, the mounting slot is buckled on the protrusion, and the protrusion and the mounting slot can slide relative to each other in the horizontal direction.

[0020] Preferably, the length of the protrusion in the horizontal direction is consistent with the width of the first positioning part.

[0021] Preferably, the vertical connecting piece is a threaded piece, the vertical connecting piece penetrates through the mounting slot in the vertical direction and is threadedly connected with the protrusion; the vertical connecting piece, the first positioning part and the second positioning part are one-to-one corresponding.

[0022] Preferably, the side of the first positioning part close to the mounting base two is provided with a machining surface A; the mounting base two is provided with a machining surface B corresponding to the machining surface A; the machining surface A and the machining surface B are connected by a horizontal connecting piece.

[0023] Preferably, the technical scheme further comprises a limiting piece arranged on the protrusion; the limiting piece is used for limiting the mounting base two in the horizontal direction.

[0024] Preferably, the technical scheme further comprises a falling-preventing support detachably arranged on the motor, the falling-preventing support is used for preventing the motor from falling vertically.

[0025] A bogie comprises a frame, a wheel set, a motor, a gear box structure and the motor mounting structure;

[0026] The wheel set is arranged on the frame; the motor is mounted on the frame by the motor mounting structure; the mounting base one of the motor mounting structure is fixed on the frame;

[0027] The gear box structure comprises a coupling, a gear box and a boom; the coupling comprises a coupling one and a coupling two connected with each other; the coupling one is fixed on the output shaft of the motor; the coupling two is fixed on the input end of the gear box, and the output shaft of the gear box is the axle of the wheel pair; the boom is installed on the frame and connected with the gear box; the anti-falling bracket of the motor mounting structure is vertically corresponding with the axle of the wheel pair.

[0028] A motor dismounting method for dismounting a motor, comprising the following steps:

[0029] Step S1, disassembling each fixed structure so that the mounting seat two and the motor can move horizontally and laterally and the gear box can rotate around the axle of the wheel pair;

[0030] Step S2, rotating the gear box around the axle of the wheel pair so that the coupling two on the input end of the gear box and the entire motor are completely staggered horizontally and laterally;

[0031] Step S3, staggering the first positioning part and the second positioning part, specifically as follows:

[0032] Moving the mounting seat two and the motor horizontally and laterally, and at the same time, the vertical projection of the second positioning part is located in the first avoiding channel and the vertical projection of the first positioning part is located in the second avoiding channel;

[0033] Then release the motor, and the motor falls out downward.

[0034] The above technical solution is preferably, the step S1 comprises:

[0035] Step S1.1: dismounting and separating the coupling one and the coupling two;

[0036] Step S1.2: dismounting all vertical connecting parts and horizontal connecting parts, and also dismounting the limiting part and the anti-falling bracket;

[0037] Step S1.3: dismounting the boom.

[0038] The application of the technical solution of the present application has the following beneficial effects:

[0039] (1) The motor mounting structure of the present application is provided with mutually matched mounting seats (i.e. mounting seat one and mounting seat two), the installation and positioning of the motor are realized through the cooperation of the multiple sets of first positioning parts on the mounting seat one and the second positioning parts on the mounting seat two, specifically, the motor can be vertically stopped and positioned in the horizontal longitudinal direction, and the present application forms an avoiding passage one between the adjacent two sets of first positioning parts and an avoiding passage two between the adjacent two sets of second positioning parts, the design of the avoiding passages provides convenience for the disassembly of the motor in a small space, only the first positioning parts and the second positioning parts need to be horizontally and transversely staggered, and the motor can be disassembled by falling vertically, meanwhile, the vertical connecting piece of the present application uses the connecting mode of the existing product, so that the motor mounting structure of the present application only needs to be slightly changed from the existing product (i.e. the change here refers to: the mounting seat structure of the existing product is cut off), which can ensure the convenience of disassembly of the motor and does not change too much, has good economic benefits and is easy to realize.

[0040] (2) In the present application, the protrusion on the first positioning part can limit the movement of the mounting seat two and the motor in the horizontal longitudinal direction, i.e. the horizontal longitudinal positioning can be realized, and the installation through slot is inverted on the protrusion, so that the mounting seat two and the motor cannot fall vertically, i.e. the functions of vertical stopping and positioning are realized, when the mounting seat two and the motor need to move horizontally and transversely, the cooperation of the protrusion and the installation through slot can also keep the stability of the structure during the horizontal and transverse movement, which ensures the rapid horizontal movement of the motor to the target position and improves the efficiency of the disassembly of the motor. In the present application, the length of the protrusion is preferably consistent with the width of the first positioning part, and the structural stability is better.

[0041] (3) The vertical connecting piece of the present application is preferably a threaded part, which is simple and fast during connection, and the vertical connecting piece, the first positioning part and the second positioning part are one-to-one correspondingly arranged to ensure the stability after connection.

[0042] (4) In the present application, the mounting seat two is blocked by the limiting piece, which ensures the stability of the structure during operation, i.e. the mounting seat two cannot move horizontally and transversely to the gear box.

[0043] (5) In the present application, the machining surface A and the machining surface B which are matched and have the same size are arranged, which ensures the cooperation requirement of the mounting seat one and the mounting seat two, and the mounting seat two and the mounting seat one can be installed in close contact, thereby reducing the space occupation.

[0044] (6) The bogie disclosed in the present application adopts the motor mounting structure, the space utilization of the bogie is reasonable, the motor has strong stability and takes into account the convenience of disassembly and assembly of the motor, which can meet the efficient maintenance requirements of disassembling and assembling the motor without lifting the car during maintenance.

[0045] (7) The motor dismounting method disclosed by the application is used for dismounting a motor in a bogie, and based on the motor mounting structure in the application, the dismounting hoist rod is dismounted through decoupling the shaft coupling, the gear box and the shaft coupling are rotated, axial dismounting space (length space of half of the shaft coupling) is created, the motor (traction motor) can be quickly dropped downward, that is, the dismounting method of the application reconfigures the dismounting process of the motor, exchanges the space, creates available operation space, greatly simplifies the dismounting work, and obviously reduces cost and increases efficiency.

[0046] (8) Compared with the prior art, the application has the following advantages: a, the first positioning parts and the second positioning parts are spaced apart (the spacing provides a clearance), the motor itself can be vertically slid downward in the presence of a trench without other complicated operations; b, the motor can be simultaneously installed from top to bottom to be hoisted into the bogie (consistent with the traditional installation process); c, during maintenance, the traction motor can be continuously slid downward out of the bogie into the trench without the need for jacking, thereby achieving efficient and convenient dismounting.

[0047] In addition to the purposes, features and advantages described above, the application has other purposes, features and advantages. The application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0049] In the drawings:

[0050] Figure 1 is a structural schematic view of the bogie of the embodiment;

[0051] Figure 2 is a partial structural schematic view of Figure 1 ;

[0052] Figure 3 is a structural schematic view of the mounting seat one of the motor mounting structure in the embodiment;

[0053] Figure 4 is another angle view of Figure 3 ;

[0054] Figure 5 is a structural schematic view of the mounting seat two of the motor mounting structure in the embodiment;

[0055] Figure 6 is another perspective view of Figure 5 ;

[0056] Figure 7 is a structural schematic diagram of mounting seat one and mounting seat two in the prior art;

[0057] Figure 8 is a schematic diagram of mounting seat one and mounting seat two after installation in the prior art;

[0058] Figure 9 is a schematic diagram of decoupling the coupling shaft in the motor dismounting method of the embodiment;

[0059] Figure 10 is a schematic diagram of dismounting the vertical connecting piece in the motor dismounting method of the embodiment;

[0060] Figure 11 is a schematic diagram of dismounting the suspension rod in the motor dismounting method of the embodiment;

[0061] Figure 12 is a schematic diagram of rotating the gear box and the coupling shaft two in the motor dismounting method of the embodiment;

[0062] Figure 13 is a schematic diagram of horizontal translocation of the mounting seat two and the motor in the motor dismounting method of the embodiment;

[0063] Figure 14 is a schematic diagram of horizontal vertical falling of the mounting seat two and the motor in the motor dismounting method of the embodiment;

[0064] Wherein, 1, mounting seat one; 1.1, first positioning part; 1.A, first avoiding passage; 1.11, horizontal plane A; 1.12, protrusion; 1.13, machining surface A; 2, mounting seat two; 2.1, second positioning part; 2.A, second avoiding passage; 2.11, horizontal plane B; 2.12, mounting slot; 2.2, machining surface B; 3, vertical connecting piece; 4, limiting piece; 5, framework; 6, wheel set; 7, motor; 8, gear box structure; 8.1, coupling shaft; 8.11, coupling shaft one; 8.12, coupling shaft two; 8.13, flange connecting bolt; 8.2, gear box; 8.3, suspension rod; 9, anti-falling support; 10, mounting seat one in the prior art; 11, mounting seat two in the prior art. DETAILED DESCRIPTION

[0065] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0066] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0067] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0068] In addition, the terms "first", "second", "third", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" or "several" is two or more, unless otherwise explicitly specified.

[0069] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to cooperate with the content disclosed in the description, to enable those skilled in the art to understand and read, and are not used to limit the conditions that can be implemented by the present application, and therefore do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application.

[0070] Embodiment:

[0071] An electric motor mounting structure, a bogie and an electric motor dismounting method are disclosed in the present embodiment. First, the electric motor mounting structure in the present embodiment will be described.

[0072] The electric motor mounting structure in the present embodiment includes a mounting seat one 1, a mounting seat two 2, a vertical connecting piece 3, a horizontal connecting piece (not marked) and a limiting piece 4, as shown inFigures 1 to 6 as shown in the drawings;

[0073] As shown in the drawings; Figure 1 and Figure 2 The mounting seat one 1 is fixed on the structure where the motor 7 needs to be installed (in this embodiment, preferably the frame 5 in the bogie);

[0074] The mounting seat two 2 is fixed on the body of the motor 7 (i.e. the traction motor), and the motor 7 is positioned and installed through the cooperation of the mounting seat one 1 and the mounting seat two 2, as follows:

[0075] As shown in the drawings; Figure 3 and Figure 4 The mounting seat one 1 is provided (spaced) with at least two groups of first positioning parts 1.1 (preferably two groups in this embodiment) in the horizontal transverse direction, and the adjacent two groups of first positioning parts 1.1 form an avoidance channel one (1.A) in the horizontal transverse direction, that is, the avoidance channel one 1.A is formed by the inward recess of the mounting seat one 1, and the avoidance channel one 1.A is a vertical through groove, and the depth of the inward recess is matched with the length of the second positioning part 2.1 on the mounting seat two 2 in the horizontal longitudinal direction, so that the avoidance channel one 1.A allows the second positioning part 2.1 to pass through and slide downward. It should be noted that in this embodiment, the horizontal transverse direction refers to the output shaft axial direction of the motor 7 (i.e. the axle axial direction of the bogie or the width direction of the track), and the horizontal longitudinal direction refers to the front-rear direction (i.e. the length direction of the track).

[0076] The first positioning part 1.1 is used to cooperate with the second positioning part 2.1 on the mounting seat two 2 to position and stabilize the motor 7.

[0077] The upper top surface of the first positioning part 1.1 is a horizontal surface A (1.11), and a protrusion 1.12 is arranged on the horizontal surface A 1.11, and the length direction of the protrusion 1.12 is the horizontal transverse direction. The protrusion 1.12 on the horizontal surface A 1.11 vertically stops and horizontally longitudinally positions the second positioning part 2.1, specifically: the upper top surface of the protrusion 1.12 can vertically stop the second positioning part 2.1, and the side surface of the protrusion 1.12 in the front-rear direction can horizontally longitudinally position the second positioning part 2.1.

[0078] As shown in the drawings; Figure 5 and Figure 6As shown, the mounting seat two 2 is provided with a second positioning part 2.1 corresponding to the first positioning part 1.1 one by one, the lower end face of the second positioning part 2.1 is a horizontal plane B (marked as 2.11), and the lower end of the second positioning part 2.1 is further provided with a mounting through slot 2.12 (the mounting through slot 2.12 is formed by concave forming in the horizontal plane B 2.11), the opening direction of the mounting through slot 2.12 is horizontal and transverse, the mounting through slot 2.12 is inverted on the protrusion 1.12, and after the mounting seat two 2 is installed, the upper top surface of the protrusion 1.12 is tightly attached to the inner top surface of the mounting through slot 2.12, achieving vertical stop, and the side surface of the protrusion 1.12 cooperates with the inner side surface of the mounting through slot 2.12, achieving horizontal and longitudinal positioning.

[0079] When the motor 7 needs to be disassembled, the mounting through slot 2.12 and the protrusion 1.12 can slide relative to each other in the horizontal and transverse direction, and the protrusion 1.12 can function as a guide and limiting part at this time. In the embodiment, the length of the protrusion 1.12 in the horizontal and transverse direction is consistent with the width of the first positioning part 1.1 in the horizontal and transverse direction.

[0080] Further, in the embodiment, there are two groups of second positioning parts 2.1, the two groups of second positioning parts 2.1 are distributed in the horizontal and transverse direction, and the two groups of second positioning parts 2.1 form an avoiding channel two (marked as 2.A) between them in the horizontal and transverse direction, which is used for avoiding the first positioning part 1.1, so as to avoid interference when the motor 7 falls vertically. Here, the width of the second positioning part 2.1 and the first positioning part 1.1 in the horizontal and transverse direction is preferably consistent, of course, the width of the first positioning part 1.1 and the width of the second positioning part 2.1 can also be different width values, but they should be less than half the axial length of the coupling (the second coupling 8.12).

[0081] In the horizontal and transverse direction, the width of the avoiding channel one 1.A is greater than the width of the second positioning part 2.1, and the width of the avoiding channel two 2.A is greater than the width of the first positioning part 1.1, that is, it can be ensured that when the motor 7 is disassembled, the first positioning part 1.1 and the second positioning part 2.1 can be vertically staggered by means of the avoiding channel.

[0082] Preferably, as shown in Figure 4 and Figure 5 The first positioning part 1.1 is provided with a machined surface A (vertical surface, marked as 1.13) on the side close to the mounting seat two 2, and the mounting seat two 2 is provided with a machined surface B (vertical surface, marked as 2.2) corresponding to the machined surface A 1.13 one by one, and after the mounting seat two 2 and the mounting seat one 1 are installed, the machined surface A 1.13 and the machined surface B 2.2 are tightly attached, wherein the machined surface A 1.13 and the machined surface B 2.2 are consistent in size.

[0083] The mounting seat two 2 and the mounting seat one 1 are connected through the vertical connecting piece 3 and the horizontal connecting piece, specifically:

[0084] As shown in Figure 1 , the vertical connecting pieces 3, the first positioning part 1.1 and the second positioning part 2.1 are one-to-one corresponding, that is, there are two groups of vertical connecting pieces 3 in the embodiment, and the vertical connecting pieces 3 are preferably threaded pieces (such as bolts). A threaded hole is formed on the top surface of the protrusion 1.12 of the first positioning part 1.1, and a light hole (the light hole is communicated to the mounting through slot) is formed on the second positioning part 2.1. The vertical connecting piece 3 penetrates the light hole of the second positioning part 2.1 from top to bottom and is threadedly connected with the threaded hole on the protrusion 1.12, that is, the vertical connecting piece 3 can fixedly connect the first positioning part 1.1 and the second positioning part 2.1.

[0085] The horizontal connecting pieces, the machined surface A 1.13 and the machined surface B 2.2 are one-to-one corresponding, that is, there are two groups of horizontal connecting pieces in the embodiment, and the horizontal connecting pieces are preferably threaded pieces (such as bolts). The horizontal connecting pieces of the embodiment are horizontally arranged, which are used for horizontally connecting the mounting seat one 1 and the mounting seat two 2. Specifically, a light hole is arranged on the machined surface A 1.13, and a threaded hole is arranged on the machined surface B 2.2. The horizontal connecting piece penetrates the light hole on the machined surface A 1.13 and is connected with the threaded hole on the machined surface B 2.2, so as to pull and fit the machined surface A 1.13 and the machined surface B 2.2.

[0086] As shown in Figure 1 , the limiting piece 4 in the embodiment is used for limiting the horizontal transverse direction of the mounting seat two 2 and the motor 7. The limiting piece 4 in the embodiment is detachably connected to the protrusion 1.12, and the limiting piece 4 is located on the horizontal transverse side of the mounting seat two 2 (close to the side of the gear box). The limiting piece 4 is used for blocking and limiting the mounting seat two 2, so as to ensure the stability of the mounting seat two 2 in the horizontal transverse direction. The detachable connection of the limiting piece 4 can refer to the prior art, such as bolt connection.

[0087] Preferably, a limiting bolt (not indicated) is further arranged on the side of the mounting seat two away from the gear box, and the limiting bolt is threadedly connected to the top surface of the protrusion 1.12, which is used for blocking the mounting seat two away from the gear box in the horizontal transverse direction.

[0088] Preferably, a fall-preventing bracket 9 is further detachably arranged (for example, arranged by bolts) on the side of the motor 7 away from the mounting seat one 1. The fall-preventing bracket 9 is used for preventing the motor from falling vertically. The specific principle is that the lower side of the fall-preventing bracket is the axle (the axle of the wheel set) on the bogie. The axle is used for vertically stopping the fall-preventing bracket, so as to prevent the motor from falling vertically.

[0089] It should be noted that:

[0090] The motor mounting structure in the embodiment can avoid corresponding structures when the motor 7 needs to be disassembled, so as to facilitate the downward falling of the motor 7. Further, the avoiding passage one 1.A between the two groups of first positioning parts 1.1 in the embodiment is used for avoiding the second positioning part 2.1, and the avoiding passage two 2.A between the two groups of second positioning parts 2.1 is used for avoiding the first positioning part 1.1. When the motor 7 needs to be disassembled, only the corresponding first positioning part 1.1 and the second positioning part 2.1 need to be misaligned horizontally and transversely.

[0091] II. Referring to Figures 7 to 8 , Figures 7 to 8 the structure in the prior art is shown in Figure 7 (a) shows the mounting seat one in the prior art, Figure 7 (b) shows the mounting seat two in the prior art, Figure 8 the structure after the mounting of the mounting seat one (10) and the mounting seat two (11) in the prior art is shown, and it can be known that the mounting seat two in the prior art cannot fall vertically, and it is extremely inconvenient to disassemble. In contrast, the mounting structure in the embodiment can realize the quick falling of the motor 7 after misalignment, and the modification is small and the technical effect is very remarkable.

[0092] The structure of the bogie disclosed in the embodiment is as follows, as shown in Figure 1 .

[0093] The bogie comprises a framework 5, a wheel pair 6, a motor 7, a gear box structure 8, and the motor mounting structure.

[0094] The framework 5 is the main structure of the bogie.

[0095] The embodiment has two groups of wheel pairs 6, and the two groups of wheel pairs 6 are arranged at the front and rear of the framework 5. The motor 7 (traction motor) is mounted on the framework 5 (specifically, the cross beam of the framework 5) through the motor mounting structure in the embodiment. The gear box structure 8 plays a role of transmitting the power of the motor 7. The mounting seat one 1 of the motor mounting structure is fixed on the cross beam of the framework 5, the mounting seat two 2 is fixed on the body of the motor 7, and the installation of the motor 7 is realized through the cooperation of the mounting seat one 1 and the mounting seat two 2.

[0096] The gear box structure 8 comprises a shaft coupling 8.1, a gear box 8.2, and a boom 8.3.

[0097] The coupling 8.1 includes a first coupling 8.11 and a second coupling 8.12, which are connected by flange connection bolts 8.13; the first coupling 8.11 is fixed to the output shaft of the motor 7; the second coupling 8.12 is fixed to the input end of the gear box 8.2;

[0098] The output shaft of the gearbox 8.2 is the axle of a set of wheelsets 6 (i.e., the central axis of the wheelsets 6), and the power of the motor 7 can be transmitted to the axle through the gearbox 8.2; wherein, the axle, the axial direction of the coupling 8.1 and the output shaft of the motor 7 are all horizontal.

[0099] The suspension rod 8.3 is a stable structure of the gear box 8.2. The upper end of the suspension rod 8.3 is fixed to the frame 5 (specifically the crossbeam) by bolts, and the lower end of the suspension rod 8.3 is connected to the gear box 8.2 (preferably detachably connected).

[0100] Among them, in order to ensure that the motor 7 can be smoothly removed from the bogie, the axial length of the coupling 2 8.12 in this embodiment needs to be greater than the horizontal transverse width of the first positioning portion 1.1 on the mounting seat 1 and the second positioning portion 2.1 on the mounting seat 2 (that is, the horizontal transverse width of the first positioning portion 1.1 on the mounting seat 1 and the second positioning portion 2.1 on the mounting seat 2 is designed to be less than half the axial length of the coupling (coupling 2 8.12)). After the coupling 2 8.12 is rotated to one side, a space of the axial length of the coupling 2 8.12 can be left on the horizontal transverse side of the motor 7, which is convenient for disassembly of the motor 7.

[0101] A motor disassembly method disclosed in this embodiment is used to disassemble the motor 7 in the bogie. The motor disassembly method includes the following steps: Figures 9 to 14 As shown:

[0102] Step S1: dismantle the fixed structures so that the mounting base 2 and the motor 7 can move horizontally and the gear box 8.2 can rotate around the axial direction of the wheelset 6, as follows:

[0103] Step S1.1: Remove the flange connection bolts 8.13 between coupling 1 8.11 and coupling 2 8.12 to separate coupling 8.1 into two halves. Figure 9 As shown, Figure 9 (A) shows the flange connection bolts 8.13 before they are removed. Figure 9 Middle (B) shows the flange connection bolts 8.13 after removal;

[0104] Step S1.2: Remove all vertical connectors 3 and all horizontal connectors, and also remove the stoppers 4 and anti-fall supports 9; Figure 10 Middle (C) indicates the vertical connector before it is disassembled.Figure 10 Fig. D shows the vertical connecting member after being detached;

[0105] Step S1.3: Detach the hanger 8.3 used to fix the gear box 8.2, and if there are other structures used to fix the gear box 8.2, they are also detached at this time, i.e. after the hanger 8.3 is detached, the gear box 8.2 is released, and the gear box 8.2 can rotate around the axle of the wheel set 6; as shown in Figure 11 Fig. A, Figure 11 Fig. E shows the hanger before being detached, Figure 11 Fig. F shows the hanger after being detached;

[0106] Step S2: Before rotating the gear box 8.2, empty the oil in the gear box 8.2, and then rotate the gear box 8.2 around the axle of the wheel set 6 (clockwise or counterclockwise according to the axle position), so that the coupling 8.12 on the input end of the gear box 8.2 and the entire motor 7 are completely staggered in the horizontal direction, i.e. further speaking, the projection of the motor 7 and the mounting base 2 and the coupling 8.12 on the axle of the wheel set 6 do not coincide, at this time, the motor 7 at the transmission end (the side of the gear box 8.2) is empty of a space with a length of half the coupling (i.e. the coupling 8.12) in the axial direction; as shown in Figure 12 Fig. B, Figure 12 Fig. G shows the coupling 8.12 during the rotation process, Figure 12 Fig. H shows the coupling 8.12 after the rotation is completed;

[0107] Step S3: Stagger the first positioning part 1.1 and the second positioning part 2.1, as follows:

[0108] Move the motor 7 and the mounting base 2 towards the transmission end of the motor 7 in the horizontal direction, so that the corresponding first positioning part 1.1 and the second positioning part 2.1 are staggered, and at the same time, the vertical projection of the second positioning part 2.1 is completely located in the avoidance channel 1.A, and the vertical projection of the first positioning part 1.1 is completely located in the avoidance channel 2.A; as shown in Figure 13 Fig. C, Figure 13 Fig. I shows the mounting base 2 before being moved horizontally, Figure 13 Fig. J shows the mounting base 2 after being moved horizontally;

[0109] At this time, the mounting base 2 and the motor 7 can be dropped down without interference, i.e. at this time, the mounting base 2 and the motor 7 are released, and the mounting base 2 and the motor 7 can be dropped down as a whole, and the dismounting work is completed. as shown in Figure 14 Fig. D, Figure 14 Fig. K shows the process of the mounting base 2 and the motor 7 being dropped down, Figure 14 Fig. L shows the mounting base 2 and the motor 7 after being dropped down.

[0110] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A motor mounting structure, characterized in that: It includes a mounting base 1 (1), a mounting base 2 (2) and a vertical connecting piece (3); The mounting seat (1) is provided with at least two groups of first positioning portions (1.1) in a horizontal direction, and a vertically opened avoidance channel (1.A) is provided between two adjacent groups of first positioning portions (1.1); The second mounting seat (2) is arranged on the motor (7) to be mounted; the second mounting seat (2) is provided with second positioning portions (2.1) corresponding one-to-one to the first positioning portions (1.1); a second vertically opened avoidance channel (2.A) is provided between two adjacent groups of second positioning portions (2.1); In the horizontal direction, the width of the avoidance channel 1 (1.A) is greater than the width of the second positioning portion (2.1), and the width of the avoidance channel 2 (2.A) is greater than the width of the first positioning portion (1.1); The second positioning portion (2.1) is arranged on the first positioning portion (1.1), and the second positioning portion (2.1) can slide horizontally relative to the first positioning portion (1.1), so that the motor (7) is positioned via the first positioning portion (1.1) and the second positioning portion (2.1); The vertical connecting member (3) is arranged vertically, and the vertical connecting member (3) is used to connect the first positioning portion (1.1) and the second positioning portion (2.1); The top surface of the first positioning portion (1.1) is a horizontal surface A (1.11), a protrusion (1.12) is provided on the horizontal surface A (1.11), and the second positioning portion (2.1) is provided with a mounting groove (2.12) along a horizontal transverse direction, the mounting groove (2.12) is buckled on the protrusion (1.12), and the protrusion (1.12) and the mounting groove (2.12) can slide relative to each other in a horizontal transverse direction; The vertical connecting member (3) is a threaded member, and the vertical connecting member (3) vertically penetrates the installation slot (2.12) and is threadedly connected to the protrusion (1.12); the vertical connecting member (3), the first positioning portion (1.1), and the second positioning portion (2.1) are arranged in a one-to-one correspondence; During the disassembly process, the motor (7) is translated to dislocate the first positioning portion (1.1) and the second positioning portion (2.1), as follows: The second mounting seat (2) and the motor (7) are moved horizontally and laterally, and simultaneously the vertical projection of the second positioning portion (2.1) is located within the avoidance channel (1.A) and the vertical projection of the first positioning portion (1.1) is located within the avoidance channel (2.A).

2. The motor mounting structure according to claim 1, characterized in that: The horizontal length of the protrusion (1.12) is consistent with the width of the first positioning portion (1.1).

3. The motor mounting structure according to any one of claims 1 to 2, characterized in that: A machined surface A (1.13) is provided on one side of the first positioning portion (1.1) close to the second mounting seat (2); a machined surface B (2.2) corresponding to the machined surface A (1.13) is provided on the second mounting seat (2); and the machined surface A (1.13) and the machined surface B (2.2) are connected via a horizontal connecting piece.

4. The motor mounting structure according to claim 3, characterized in that: It also includes a limiting member (4) arranged on the protrusion (1.12); the limiting member (4) is used to limit the horizontal position of the mounting seat 2 (2).

5. The motor mounting structure according to claim 4, characterized in that: It also includes an anti-fall support (9) detachably arranged on the motor, and is used to prevent the motor from falling downward.

6. A bogie, characterized in that: It comprises a frame (5), a wheelset (6), a motor (7), a gearbox structure (8), and the motor mounting structure according to claim 5; The wheelset (6) is arranged on the frame (5); the motor (7) is mounted on the frame (5) via the motor mounting structure; a mounting seat (1) of the motor mounting structure is fixed on the frame (5); The gearbox structure (8) includes a coupling (8.1), a gearbox (8.2) and a suspension rod (8.3); the coupling (8.1) includes a coupling 1 (8.11) and a coupling 2 (8.12) connected to each other; the coupling 1 (8.11) is fixed to the output shaft of the motor (7); the coupling 2 (8.12) is fixed to the input end of the gearbox (8.2), and the output shaft of the gearbox (8.2) is the axle of the wheelset (6); the suspension rod (8.3) is installed on the frame (5), and the suspension rod (8.3) is connected to the gearbox (8.2); the anti-drop support (9) of the motor mounting structure is arranged vertically corresponding to the axle of the wheelset (6).

7. A motor disassembly method for disassembling the motor of the bogie according to claim 6, characterized in that: The steps include: Step S1, dismantling the fixed structures so that the second mounting base (2) and the motor (7) can move horizontally and the gear box (8.2) can rotate around the axial direction of the wheelset (6); Step S2, rotating the gearbox (8.2) about the axial direction of the wheelset (6) so that the second coupling (8.12) on the input end of the gearbox (8.2) and the entire motor (7) are completely offset in the horizontal direction; Step S3: Dislocate the first positioning portion (1.1) and the second positioning portion (2.1), specifically as follows: The second mounting seat (2) and the motor (7) are moved horizontally and laterally, and the vertical projection of the second positioning portion (2.1) is located within the avoidance channel (1.A) and the vertical projection of the first positioning portion (1.1) is located within the avoidance channel (2.A); The motor (7) is then released and falls out downwards.

8. The motor disassembly method according to claim 7, characterized in that: The step S1 comprises: Step S1.1: Disassemble and separate coupling 1 (8.11) and coupling 2 (8.12); Step S1.2: Remove all vertical connectors (3) and horizontal connectors, and also remove the limiter (4) and the anti-fall support (9); Step S1.3: Remove the boom (8.3).

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