Motor mounting structure, bogie and motor dismounting method

Abstract

The application discloses a motor mounting structure, a bogie and a motor dismounting method. The mounting structure is provided with mutually matched mounting seats, vertical stopping is performed through a plurality of groups of stoppers A and stoppers B on the mounting seats, and the clearance groove in the application provides convenience for dismounting the motor in a small space, that is, when the motor is dismounted, the motor can be freely taken out downward only by moving a small distance upward and horizontally. The bogie is rationally used in space, the motor has high stability and is convenient to dismount, and the bogie can meet the efficient maintenance requirements of not mounting the bogie to dismount and mount the motor during maintenance. The motor dismounting method is based on the motor mounting structure, a dismounting space is created by dismounting the gear box and rotating the gear box and the shaft coupling, that is, the dismounting method of the application reconfigures the dismounting process of the motor, exchanges the space, creates available operation space, and greatly simplifies the dismounting work.

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 bogie frame mounting seat. 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 a 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 complex and cumbersome: the current anti-detachment device on the traction motor is usually designed to be cast or welded as a whole with the motor housing, ultimately forming a rigid structure spanning the central crossbeam and axle of the frame. In this case, the traction motor cannot fall directly onto the track (it can only move upwards to leave the frame). While this structure solves the problems of motor installation and anti-detachment, and improves the safety performance of the bogie traction motor, it also has significant drawbacks in terms of the inability to quickly and conveniently disassemble or install the motor. Therefore, when the traction motor fails and needs replacement, it is usually necessary to lift the vehicle to separate the bogie from the car body before removing the traction motor from the bogie; or to replace the traction motor by disassembling the wheelset and other drive units. However, lifting the car body is extremely inconvenient. First, all connections such as the traction device, workshop connection pipelines, and bogie onboard pipelines must be removed. Then, the car body is lifted using a lifting machine and pushed out of the bogie. The fixing bolts of the traction motor are removed, and the traction motor is taken off the bogie before it can be inspected. This inspection process is time-consuming and labor-intensive, with high maintenance difficulty and intensity, and the workers' physical strength is severely depleted.

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

[0009] I. Commonly used technical solutions on site (as shown in the attached document) Figures 8 to 10 As shown, the traction motor is rigidly attached to the mounting base on the bogie on one side via upper and lower suspensions (the upper suspension is a long, uninterrupted horizontal mounting surface, and the lower suspension consists of two independent vertical mounting surfaces, collectively restricting 5 degrees of freedom), and is secured with bolts (2 mounting bolts on the top and bottom, for a total of 4). On the other side, a fixed anti-falling structure is positioned above the axle. The gap between the motor's outer perimeter and the axle is very small, approximately 15mm. The entire motor structure spans between the bogie and the axle, and the length of the upper suspension and anti-falling structure is greater than the distance between the bogie mounting base and the axle. The disadvantage of this technical solution is that the traction motor cannot directly fall down to detach from the bogie (it can only move upwards 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 joints are completely placed above 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 through the gap between the two bogie mounting seats, and the purpose of dismounting the motor without lifting the bogie is achieved. The disadvantage of this technical solution is that there needs to be a large enough distance (greater than the lateral size 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 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 this 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 under 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 present application aims 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 and a mounting seat two; the mounting seat one is provided with a vertical mounting surface, at least two stoppers A are arranged on the vertical mounting surface along the horizontal transverse direction, and a first empty slot is formed between adjacent two stoppers A;

[0015] The motor to be installed is arranged on the second mounting seat; the second mounting seat is provided with a stop portion B matched with the stop portion A, and a second emptying groove is formed between two adjacent stop portions B;

[0016] The width of the first emptying groove is greater than the width of the stop portion B, and the width of the second emptying groove is greater than the width of the stop portion A;

[0017] The vertical mounting surface of the first mounting seat is further provided with a positioning portion A, and the second mounting seat is provided with a positioning portion B matched with the positioning portion A; the positioning portion A and the positioning portion B are matched to limit the second mounting seat in the horizontal direction, and the positioning portion B can slide upward relative to the positioning portion A.

[0018] Preferably, the stop portion A is provided with a stepped surface A; the stop portion B is provided with a stepped surface B; and the stepped surface A and the stepped surface B are matched to vertically stop the second mounting seat and the motor.

[0019] Preferably, the vertical mounting surface is provided with two groups of positioning portions A in the horizontal direction; the second mounting seat is provided with positioning portions B corresponding to the positioning portions A; and in the horizontal direction, the two groups of positioning portions A are located between the two groups of positioning portions B.

[0020] Preferably, the positioning portion A of the first mounting seat is provided with a limiting through groove in the height direction; the positioning portion B is provided with a protrusion facing the limiting through groove, the protrusion is arranged in the limiting through groove, and the limiting through groove and the protrusion are matched to limit the second mounting seat and the motor in the horizontal direction; and the protrusion can slide upward along the opening direction of the limiting through groove.

[0021] Preferably, a third emptying groove is formed between the two groups of positioning portions A; a fourth emptying groove is formed between the two groups of positioning portions B; the width of the third emptying groove is greater than the width of the positioning portion B; and the width of the fourth emptying groove is greater than the width of the positioning portion A and the width of the stop portion A.

[0022] Preferably, the end face of the stop portion A close to the second mounting seat is a vertical connecting surface P1; the end face of the stop portion B close to the first mounting seat is a vertical connecting surface P2; the vertical connecting surface P1 is attached to the vertical connecting surface P2, and the stop portion A and the stop portion B are connected horizontally through a first connecting piece.

[0023] The end face of the positioning portion A close to the second mounting seat is a vertical connecting surface P3; the positioning portion B is provided with a vertical connecting surface P4 attached to the vertical connecting surface P3; and the positioning portion A and the positioning portion B are connected horizontally through a second connecting piece.

[0024] Preferably, the technical scheme further comprises a falling prevention bracket detachably arranged on the motor, and the falling prevention bracket is used to cooperate with an external structure to block the motor from falling.

[0025] A bogie comprising 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 through the motor mounting structure; a mounting base of the motor mounting structure is fixed on the frame;

[0027] The gear box structure comprises a shaft coupling, a gear box and a boom; the shaft coupling comprises a shaft coupling I and a shaft coupling II connected with each other; the shaft coupling I is fixed on an output end of the motor; the shaft coupling II is fixed on an input end of the gear box, and an output shaft of the gear box is a wheel shaft of the wheel set; the boom is mounted on the frame, and the boom is connected with the gear box.

[0028] Preferably, the width of the stop portion A, the positioning portion A, the stop portion B and the positioning portion B of the motor mounting structure in the horizontal transverse direction is less than the axial length of the shaft coupling II.

[0029] A motor dismounting method for dismounting a motor, comprising the following steps:

[0030] Step S1, disassembling each fixed structure so that the mounting base II can slide upward and the gear box can rotate around the axial direction of the wheel set;

[0031] Step S2, rotating the gear box: around the axial direction of the wheel set, so that the shaft coupling II on the input end of the gear box and the entire motor are completely staggered in the horizontal transverse direction;

[0032] Step S3, translating the motor so that the positioning portion A and the positioning portion B are staggered and the stop portion A and the stop portion B are staggered, specifically as follows:

[0033] Step S3.1, translating the motor upward until the lower end surface of the positioning portion B is higher than the upper end surface of the positioning portion A;

[0034] Step S3.2, horizontally translating the motor until the positioning portion A and the positioning portion B are staggered and the stop portion A and the stop portion B are staggered, and the projection of the stop portion B in the vertical direction is located in the first air avoidance groove, the projection of the stop portion A in the vertical direction is located in the second air avoidance groove, the projection of the positioning portion B in the vertical direction is located in the third air avoidance groove, and the projection of the positioning portion A in the vertical direction is located in the fourth air avoidance groove;

[0035] Step S3.3, releasing the motor, and the motor falls out downward.

[0036] Preferably, the step S1 comprises:

[0037] Step S1.1: decoupling the shaft coupling;

[0038] Step S1.2: dismounting the first connecting piece, the second connecting piece and the anti-falling bracket;

[0039] Step S1.3: The boom is detached.

[0040] The technical scheme of the present application has the following beneficial effects:

[0041] (1) The motor mounting structure of the present application is provided with mutually cooperating mounting seats (i.e., mounting seat one and mounting seat two). A plurality of stop portions A are arranged on the vertical mounting surface of the mounting seat one to vertically stop the stop portion B, i.e., to prevent the motor from falling. In the present application, the first emptying groove formed by the plurality of stop portions A and the second emptying groove formed by the plurality of stop portions B can avoid the corresponding structure (the structure interfering with the falling of the motor) when the motor is disassembled, thereby providing convenience for the disassembly of the motor in a small space. When the motor is disassembled, only a small distance needs to be moved upward and horizontally, so that the corresponding interfering structure falls into the emptying groove, and the motor can be freely removed downward. The motor can be conveniently disassembled in a small space, and installation space is reserved for other components.

[0042] (2) The stop portion A and the stop portion B are cooperated by the step (i.e., the cooperation of the step surface A and the step surface B), so that the stop portion A can stably stop the mounting seat two and the motor in the vertical direction.

[0043] (3) In the present application, the two sets of positioning portions A are located between the two sets of positioning portions B. The mutual limiting (i.e., horizontal and lateral blocking) between the two sets of positioning portions B and the positioning portions A realizes the positioning of the mounting seat two in the horizontal direction. The two sets of positioning portions B can form a guide space between them in the horizontal and lateral direction. When installing, the mounting seat two can be slid down from top to bottom as a whole to realize that the two sets of positioning portions A are located between the two sets of positioning portions B, which is simple and convenient.

[0044] (4) In the present application, the limiting through slot opened in the height direction plays a guiding and positioning role. When the mounting seat two needs to slide vertically relative to the mounting seat one, the cooperation of the limiting through slot and the protrusion can ensure stable sliding. Since the protrusion is located in the limiting through slot, it limits the mounting seat two from being separated from the mounting seat one in the horizontal and longitudinal direction and restricts the left and right lateral movement of the mounting seat two, thereby ensuring the positioning of the mounting seat two and the motor in the horizontal direction (i.e., the horizontal and lateral direction and the horizontal and longitudinal direction) after installation. In addition, when disassembling the motor in a small space, the mounting seat two needs to move upward. However, due to the existence of the limiting through slot, the mounting seat two and the motor can only slide upward, thereby avoiding the collision of the motor with other components due to operation errors. The limiting through slot limits the path of the motor disassembly.

[0045] (5) The two sets of positioning parts A and the two sets of positioning parts B are arranged in the application, so that the third clearance between the two sets of positioning parts A is greater than the width of the positioning part B, so that the positioning part B can smoothly pass through the third clearance, and the fourth clearance between the two sets of positioning parts B is greater than the width of the positioning part A and the stop part A, so that the positioning part A and the stop part A can smoothly pass through the fourth clearance, and the motor can smoothly fall, that is, when the motor is disassembled, the structure of the multiple clearances can avoid interference between the mounting seat one and the mounting seat two during vertical relative movement.

[0046] (6) The mounting seat one and the mounting seat two are arranged with multiple vertical connecting surfaces that abut each other, so that the mounting seat one and the mounting seat two are in an abutting state after installation, the space occupation is reduced, mutual interference is avoided, and the first connecting piece and the second connecting piece are connected to ensure that the connection between the mounting seat one and the mounting seat two is more stable.

[0047] (7) The bogie disclosed in the application adopts the motor mounting structure, the space utilization of the bogie is reasonable, the motor stability is strong, and the disassembly and assembly of the motor are convenient, so that the efficient maintenance requirements of disassembling and assembling the motor without a car during maintenance can be met.

[0048] (8) The motor disassembly method disclosed in the application is used for disassembling the motor in the bogie, based on the motor mounting structure in the application, the gear box is disassembled, the gear box and the shaft coupling two are rotated, a disassembly space is created, and after the motor one is moved upward and horizontally by a small distance, the motor (traction motor) can be quickly fallen out, that is, the disassembly method of the application reconfigures the disassembly process of the motor, exchanges the space, creates a usable operation space, greatly simplifies the disassembly work, and obviously reduces the cost and increases the efficiency.

[0049] (9) Compared with the prior art, the application needs to emphasize the following advantages: a, the multiple sets of stop parts A, the multiple sets of positioning parts A, the multiple sets of stop parts B, and the multiple sets of positioning parts B are arranged in an intermittent manner (the intermittent arrangement provides a clearance), the motor itself can be vertically slid downward in the case of a ditch, without other complicated operations; b: it can simultaneously meet the installation of the motor from top to bottom into the bogie during new construction (consistent with the traditional installation process); c, during maintenance, the traction motor can be continuously slid out of the bogie into the ditch without a car, realizing efficient and convenient disassembly.

[0050] 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

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0052] In the drawings:

[0053] Figure 1 is a structural schematic diagram of a bogie in the embodiment;

[0054] Figure 2 is a structural schematic diagram of a mounting seat one in the embodiment;

[0055] Figure 3 is a view of another angle of Figure 2 ;

[0056] Figure 4 is a structural schematic diagram of a mounting seat two in the embodiment (illustrating a motor);

[0057] Figure 5 is a cooperation schematic diagram of the mounting seat one and the mounting seat two in the embodiment (illustrating the motor);

[0058] Figure 6 is another angle schematic diagram of the mounting seat one and the mounting seat two in the embodiment;

[0059] Figure 7 is a partial enlarged view of Figure 6 ;

[0060] Figure 8 is a schematic diagram of a mounting seat one in the prior art;

[0061] Figure 9 is a schematic diagram of a mounting seat two in the prior art (illustrating a motor);

[0062] Figure 10 is a cooperation schematic diagram of the mounting seat one and the mounting seat two in the prior art;

[0063] Figure 11 is a schematic diagram of a decoupling coupling in the motor dismounting method of the embodiment;

[0064] Figure 12 is a schematic diagram of dismounting a first connecting piece, a second connecting piece and a falling prevention bracket in the motor dismounting method of the embodiment;

[0065] Figure 13 is a schematic diagram of dismounting a suspender in the motor dismounting method of the embodiment;

[0066] Figure 14 is a schematic view of the motor dismounting method of the embodiment, in which the gear box and the second coupling are rotated;

[0067] Figure 15 is a schematic view of the motor dismounting method of the embodiment, in which the motor and the second mounting base are moved vertically upward;

[0068] Figure 16 is a schematic view of the motor dismounting method of the embodiment, in which the motor and the second mounting base are moved horizontally laterally;

[0069] Figure 17 is a schematic view of the motor dismounting method of the embodiment, in which the motor and the second mounting base are moved vertically downward;

[0070] 1, the first mounting base; 1.a, a vertical mounting surface; 1.1, a stop portion A; 1.11, a stepped surface A; 1.2, a positioning portion A; 1.21, a vertical matching surface C1; 1.22, a limiting through slot; 2, the second mounting base; 2.1, a stop portion B; 2.11, a stepped surface B; 2.2, a positioning portion B; 2.21, a vertical matching surface C2; 2.22, a protrusion; 3, a second connecting piece; 4, a framework; 5, a wheel set; 6, a motor; 7, a gear box structure; 7.1, a coupling; 7.11, a first coupling; 7.12, a second coupling; 7.13, a flange connecting bolt; 7.2, a gear box; 7.3, a lifting rod; 8, a falling prevention bracket; 9, the first mounting base in the prior art; 10, the second mounting base in the prior art;

[0071] a, a first avoidance slot; b, a second avoidance slot; c, a third avoidance slot; d, a fourth avoidance slot. DETAILED DESCRIPTION

[0072] 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 described clearly and completely 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 labor fall within the scope of protection of the present application.

[0073] 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.

[0074] 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 directions or positions based on the directions or positions shown in the drawings and are used for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

[0075] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, 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", "several" is two or more, unless otherwise explicitly specified.

[0076] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present application are only used to illustrate the content disclosed in the specification, to enable those skilled in the art to understand and read, and do not limit the conditions under which the present application can be implemented, 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 and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0077] Embodiment:

[0078] In this embodiment, a motor mounting structure, a bogie and a motor dismounting method are disclosed. First, the motor mounting structure in this embodiment is described.

[0079] As shown in Figures 1 to 7 , the motor mounting structure in this embodiment includes a mounting seat one 1 and a mounting seat two 2;

[0080] As shown in Figure 1 , the mounting seat one 1 is fixed on the structure where the motor 6 needs to be installed (in this embodiment, the frame 4 in the bogie is preferred);

[0081] The mounting seat two 2 is fixed on the body of the motor 6 (i.e. the traction motor), and the motor 6 is positioned and installed through the cooperation of the mounting seat one 1 and the mounting seat two 2, as follows:

[0082] As shown in Figure 2 and Figure 3 , the mounting seat one 1 is provided with a vertical mounting surface 1.a, which faces the mounting seat two 2;

[0083] The vertical mounting surface 1.a is provided with at least two groups of stop portions A (1.1, preferably two groups in the embodiment) in horizontal transverse spacing, and a first avoidance slot (a) is formed between two groups of adjacent stop portions A 1.1 in horizontal transverse direction. The stop portions A 1.1 serve to vertically stop the mounting seat two 2 and the motor 6, and the first avoidance slot a provides a clearance space for the stop portions B and the positioning portions B on the mounting seat two 2. Here, it should be defined that, in the embodiment, the horizontal transverse direction refers to the output shaft axial direction of the motor 6 (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).

[0084] As shown in Figure 4 , the structure cooperating with the stop portions A 1.1 in the mounting seat two 2 is that the mounting seat two 2 is provided with stop portions B (2.1) corresponding to the stop portions A 1.1 one by one. The stop portions B 2.1 are vertically stopped by the stop portions A 1.1 to prevent the motor 6 from falling. A plurality of groups of stop portions B 2.1 are provided in horizontal transverse spacing, and a second avoidance slot (b) is formed between the groups of stop portions B 2.1 in horizontal transverse direction. The second avoidance slot b is used to avoid the stop portions A 1.1 when the motor 6 is disassembled. It should be noted that, in the embodiment, the width of the stop portions A 1.1 is consistent with the width of the stop portions B 2.1 (of course, the width can also be set to be inconsistent according to the actual situation, and the width is consistent in the embodiment); the width of the first avoidance slot a in the horizontal transverse direction is greater than the width of the stop portions B 2.1 and the positioning portions B 2.2 (i.e. the width of the stop portions B 2.1 and the positioning portions B 2.2 is less than the width of the first avoidance slot a); and the width of the second avoidance slot b in the horizontal transverse direction is greater than the width of the stop portions A 1.1.

[0085] As shown in Figure 4 and Figure 5 , the principle of the vertical stop of the stop portions A 1.1 and the stop portions B 2.1 is that the stop portions A 1.1 are provided with a stepped surface A (1.11), and the stop portions B 2.1 are provided with a stepped surface B (2.11). The stepped surface B 2.11 is engaged on the stepped surface A 1.11. After the motor 6 is installed, the stepped surface A 1.11 vertically stops the stepped surface B 2.11 to achieve the vertical stop function of the mounting seat two 2 and the motor 6 (i.e. prevent the motor from falling).

[0086] As shown in Figure 2 and Figure 3As shown, the vertical mounting surface 1.a is further provided with at least two groups of positioning portions A (labeled as 1.2, preferably two groups in this embodiment) in horizontal transverse direction, and the positioning portions A 1.2 are located above the stop portions A 1.1 and correspond one-to-one, and the third avoidance slot (labeled as c) is formed between the two groups of horizontally transversely adjacent positioning portions A 1.2, wherein the positioning portions A 1.2 are used to cooperate with the positioning portions B 2.2 on the mounting seat two 2 to achieve horizontal limiting and convenient disassembly, and the third avoidance slot c is used to provide a space for avoiding (specifically for providing a space for avoiding the positioning portions B 2.2 on the mounting seat two 2) when the motor 6 is disassembled.

[0087] As shown in Figure 4 , the structure for cooperating with the positioning portions A 1.2 in the mounting seat two 2 is that the mounting seat two 2 is provided with the positioning portions B (labeled as 2.2) corresponding to the positioning portions A 1.2 one-to-one, and the multiple groups of positioning portions B 2.2 are arranged in horizontal transverse direction (the positioning portions B 2.2 are located above the stop portions B 2.1), and the fourth avoidance slot (labeled as d) is formed between the multiple groups of positioning portions B 2.2 in horizontal transverse direction, and the fourth avoidance slot d is used to avoid the positioning portions A 1.2 and the stop portions A 1.1 when the motor 6 is disassembled. It should be noted that in this embodiment, preferably, the width of the positioning portions A 1.2 in horizontal transverse direction is consistent with the width of the positioning portions B 2.2; the width of the third avoidance slot c in horizontal transverse direction is greater than the width of the positioning portions B 2.2, and the width of the fourth avoidance slot d in horizontal transverse direction is greater than the width of the positioning portions A 1.2 and the stop portions A 1.1 (that is, the width of the positioning portions A 1.2 and the stop portions A 1.1 is less than the width of the fourth avoidance slot d).

[0088] As shown in Figure 4 , Figure 6 and Figure 7 , the principle of the positioning portions A 1.2 and the positioning portions B 2.2 for horizontal limiting (positioning) is that in horizontal transverse direction, the two groups of positioning portions A 1.2 are located between the two groups of positioning portions B 2.2, the positioning portions A 1.2 are used to horizontally transversely position the positioning portions B 2.2, and then the mounting seat two is horizontally transversely limited. Further, the outer side surface of the horizontal transverse side of the positioning portion A 1.2 is the vertical cooperation surface C1 (labeled as 1.21), the inner side surface of the horizontal transverse side of the positioning portion B 2.2 cooperating with the positioning portion A 1.2 is the vertical cooperation surface C2 (labeled as 2.21), and the vertical cooperation surfaces C2 of the two groups of positioning portions B 2.2 can form a guide space (also called a positioning space) in horizontal transverse direction, and when the mounting seat two 2 is installed, the vertical cooperation surface C2 is parallel to the vertical cooperation surface C1 from top to bottom and is slid into place (the vertical cooperation surface C1 and the vertical cooperation surface C2 are gap cooperation), and the installation is simple.

[0089] Further, in this embodiment, as shown in Figure 6 and Figure 7As shown, by setting the cooperation of the limiting through slot 1.22 and the protrusion 2.22, the positioning of the mounting seat two 2 in the horizontal direction (i.e. horizontal longitudinal and horizontal transverse) can be realized, specifically: the limiting through slot 1.22 is set on the outside of the horizontal transverse side of the positioning part A1.2 (i.e. the limiting through slot 1.22 is formed by the vertical cooperation surface C1 inside concave), the opening direction of the limiting through slot 1.22 is the height direction; the positioning part B2.2 (specifically the vertical cooperation surface C2) is fixedly provided with the protrusion 2.22 towards the limiting through slot 1.22, when the limiting or positioning function needs to be played, the protrusion 2.22 is located in the limiting through slot 1.22, the mounting seat two 2 cannot be separated from the mounting seat one 1 along the horizontal longitudinal, and in the horizontal transverse, the end face of the protrusion can be matched with the inner bottom surface of the limiting through slot 1.22, thereby realizing the positioning in the horizontal transverse, and the side surface of the protrusion can be matched with the inner side surface of the limiting through slot 1.22, thereby realizing the positioning in the horizontal longitudinal, wherein when the mounting seat two 2 needs to be separated from the mounting seat one 1, the protrusion 2.22 can slide out upwards from the limiting through slot 1.22 in the height direction, at this time the limiting through slot 1.22 plays a guiding and stabilizing role.

[0090] Preferably, the above-mentioned stop part A1.1, stop part B2.1, positioning part A1.2 and positioning part B2.2 preferably have the following structure:

[0091] As shown in Figure 2 and Figure 4 , the end face of the stop part A1.1 close to the mounting seat two 2 is a vertical connection surface P1 (i.e. P1), the end face of the stop part B2.1 close to the mounting seat one 1 is a vertical connection surface P2 (i.e. P2), when the motor 6 is installed, the stop part A1.1 and the stop part B2.1 are connected by the first connecting piece (not marked), after the connection is completed, the vertical connection surface P1 and the vertical connection surface P2 are in close contact state;

[0092] The end face of the positioning part A1.2 close to the mounting seat two 2 is a vertical connection surface P3 (i.e. P3), the positioning part B2.2 provided with the vertical connection surface P4 (i.e. P4) corresponding to the vertical connection surface P3 is matched with the positioning part A1.2, when the motor 6 is installed, the positioning part A1.2 and the positioning part B2.2 are connected by the second connecting piece, after the connection is completed, the vertical connection surface P3 and the vertical connection surface P4 are in close contact state.

[0093] The above-mentioned first connecting piece and second connecting piece 3 are preferably threaded pieces, the first connecting piece and the second connecting piece are connected in a horizontal manner, specifically: the connection position of the first connecting piece is between the stop part A1.1 and the stop part B2.1, and the connection position of the second connecting piece is between the vertical connection surface P3 and the vertical connection surface P4 of the positioning part A1.2. The first connecting piece and the second connecting piece are in a horizontal state.

[0094] Preferably, the motor mounting structure of the embodiment further comprises a falling prevention bracket 8 which is detachably arranged (for example, detachably connected by bolts) on the motor, and the falling prevention bracket cooperates with the external structure (i.e., the axle in the embodiment) to prevent the motor in the working state from falling down. Specifically, the falling prevention bracket is located above the axle of the bogie, and the axle vertically blocks the falling prevention bracket to prevent the motor from falling down.

[0095] It should be noted that:

[0096] Firstly, the motor mounting structure of the embodiment can avoid the corresponding structure when the motor 6 needs to be disassembled, so as to facilitate the motor 6 to fall down. Specifically, the first clearance groove a formed by the two sets of stop portions A1.1 vertically corresponds to the third clearance groove c formed by the two sets of positioning portions A1.2, and can form a clearance passage one for avoiding the stop portion B2.1 and the positioning portion B2.2. Similarly, the second clearance groove b formed by the two sets of stop portions B2.1 vertically corresponds to the fourth clearance groove d formed by the two sets of positioning portions B2.2, and can form a clearance passage two for avoiding the stop portion A1.1 and the positioning portion A1.2. When the motor 6 needs to be disassembled, the mounting seat two 2 and the motor 6 are only needed to be moved upward, and then the stop portion B2.1 and the stop portion A1.1 are misaligned horizontally and transversely.

[0097] Secondly, referring to Figures 8 to 10 , Figures 8 to 10 the structure in the prior art is shown in Figure 8 the mounting seat one in the prior art is shown by reference numeral 9, Figure 9 the mounting seat two in the prior art is shown by reference numeral 10, and Figures 8 to 10 It can be seen that the mounting seat one and the mounting seat two in the prior art are not discontinuously arranged, and the mounting seat two cannot fall down vertically, which leads to the motor being extremely inconvenient to disassemble.

[0098] The structure of the bogie disclosed in the embodiment is as follows: as shown in Figure 1 the bogie comprises a frame 4, a wheel set 5, a motor 6, a gear box structure 7, and the motor mounting structure;

[0099] The frame 4 is the main structure of the bogie;

[0100] The embodiment has two sets of wheelsets 5, which are arranged at the front and rear of the frame 4 respectively; the motor 6 (traction motor) is installed on the frame 4 (specifically, the crossbeam of the frame 4) through the motor mounting structure in the embodiment; the gear box structure 7 plays a role in transmitting the power of the motor 6; the mounting seat one 1 of the motor mounting structure is fixed on the crossbeam of the frame 4, the mounting seat two 2 is fixed on the body of the motor 6, and the installation of the motor 6 is realized through the cooperation of the mounting seat one 1 and the mounting seat two 2.

[0101] The gear box structure 7 includes a shaft coupling 7.1, a gear box 7.2, and a boom 7.3.

[0102] The shaft coupling 7.1 includes a shaft coupling one 7.11 and a shaft coupling two 7.12, which are connected through a flange connection bolt 7.13; the shaft coupling one 7.11 is fixed on the output shaft of the motor 6; the shaft coupling two 7.12 is fixed on the input end of the gear box 7.2.

[0103] The output shaft of the gear box 7.2 is the axle of a set of wheelsets 5 (i.e., the central shaft of the wheelset 5), and the power of the motor 6 can be transmitted to the axle through the gear box 7.2; wherein the axle, the axial direction of the shaft coupling, and the output shaft of the motor 6 are all horizontally transverse.

[0104] The boom 7.3 is a stable structure of the gear box 7.2, the upper end of the boom 7.3 is fixed on the frame 4 (specifically, the crossbeam) through a bolt, and the lower end of the gear box 7.2 is connected (preferably detachably connected) with the gear box 7.2.

[0105] In order to ensure that the motor 6 can be smoothly detached from the bogie, the axial length of the shaft coupling two 7.12 in the embodiment needs to be greater than the width of the stop portion A1.1 and the positioning portion A1.2 on the mounting seat one 1 in the horizontal transverse direction (i.e., the width of the stop portion A1.1 and the positioning portion A1.2 is less than the axial length of the shaft coupling two 7.12), so that after the shaft coupling two 7.12 is rotated to one side, a space with the axial length of the shaft coupling two 7.12 is left on the horizontal transverse side of the motor 6, facilitating the disassembly of the motor 6.

[0106] The motor dismounting method disclosed in the embodiment is used to dismount the motor 6 in the bogie, and the motor dismounting method includes the following steps:

[0107] Step S1, disassemble each fixed structure, specifically as follows:

[0108] Step S1.1: disassemble the flange connection bolt 7.13 between the shaft coupling one 7.11 and the shaft coupling two 7.12, so that the shaft coupling 7.1 is separated into two halves, as shown in Figure 11 Figure 11 ​(a) shows the coupling one 7.11 and the coupling two 7.12 before dismounting, Figure 11 (b) shows the coupling one 7.11 and the coupling two 7.12 after dismounting,

[0109] Step S1.2: dismount the first connecting member, the second connecting member and the anti-falling bracket 8 on the motor, so as to release the mounting seat two 2, so that the mounting seat two 2 can be moved upward in the subsequent step and can be smoothly fallen out downward in the subsequent step; as shown in Figure 12 Figure 12 (c) shows before dismounting, Figure 12 (d) shows after dismounting,

[0110] Step S1.3: dismount the hanger 7.3 for fixing the gear box 7.2, and if there are other structures for fixing the gear box 7.2, they are also dismounted at this time, that is, after the hanger 7.3 is dismounted, the gear box 7.2 is released, and the gear box 7.2 can rotate around the axle of the wheel pair 5 at this time, as shown in Figure 13 Figure 13 (e) shows before dismounting the hanger 7.3, Figure 13 (f) shows after dismounting the hanger 7.3,

[0111] Step S2: before rotating the gear box 7.2, empty the oil in the gear box 7.2, and then rotate the gear box 7.2 around the axle of the wheel pair 5 (clockwise or counterclockwise according to the axle position), so that the coupling two 7.12 on the input end of the gear box 7.2 and the entire motor 6 are completely staggered in the horizontal direction, that is, further said that the projection of the motor 6 and the coupling two 7.12 on the axle direction of the wheel pair 5 does not coincide, at this time, the motor 6 is empty in the axial direction of the transmission end (the gear box side) half of the coupling (i.e. the coupling two 7.12) axial length space, as shown in Figure 14 Figure 14 (g) shows before rotating the gear box 7.2 and the coupling two 7.12, Figure 14 (h) shows after rotating the gear box 7.2 and the coupling two 7.12,

[0112] Step S3: translate the motor 6 so that the positioning part A1.2 and the positioning part B2.2 are staggered and the stop part A1.1 and the stop part B2.1 are staggered:

[0113] Step S3.1: translate the mounting seat two 2 and the motor 6 upward until the lower end surface of the positioning part B2.2 does not coincide with the positioning part A1.2 in the horizontal lateral view, that is, when the lower end surface of the positioning part B2.2 is higher than the upper end surface of the positioning part A1.2, the upward movement of the mounting seat two 2 and the motor 6 can be stopped; as shown in Figure 15 Figure 15 (i) shows before moving the mounting seat two 2 and the motor 6 upward, Figure 15 ​​​​Fig. 6 shows the schematic diagram of the installation base two 2 and the motor 6 after moving upward,

[0114] Step S3.2, the motor 6 is horizontally and laterally translated towards the side of the gear box 7.2 until the positioning part A1.2 is misaligned with the positioning part B2.2 and the stop part A1.1 is misaligned with the stop part B2.1, and the vertical projection of the stop part B2.1 is located in the first avoidance slot a, the vertical projection of the stop part A1.1 is located in the second avoidance slot b, the vertical projection of the positioning part B2.2 is located in the third avoidance slot c, and the vertical projection of the positioning part A1.2 is located in the fourth avoidance slot d, in short, by horizontally and laterally moving the installation base two 2, the structures that may interfere with the falling of the installation base two 2 and the motor 6 are located in the avoidance slots, and the installation base two 2 and the motor 6 can fall out without interference by means of the avoidance function of the avoidance slots, as shown in Figure 16 Fig. 7, Figure 16 Fig. 6 shows the schematic diagram of the installation base two 2 and the motor 6 after moving upward, Figure 16 Fig. 7 shows the schematic diagram of the installation base two 2 and the motor 6 after horizontally and laterally moving,

[0115] Step S3.3, after the horizontal and lateral movement in step S3.2, the structures that interfere with the falling of the motor 6 are all located in the avoidance slots, at this time the motor 6 is released and can fall out, and the disassembly work is completed, as shown in Figure 17 Fig. 8, Figure 17 Fig. 7 shows the schematic diagram of the installation base two 2 and the motor 6 after horizontally and laterally moving, Figure 17 Fig. 8 shows the schematic diagram of the installation base two 2 and the motor 6 during the falling process, Figure 17 Fig. 9 shows the schematic diagram of the installation base two 2 and the motor 6 about to fall out of the bogie;

[0116] It needs to be explained that this step S3.3, this disassembly method is to avoid the corresponding structures by means of the avoidance slots, therefore, when the motor 6 falls, if there is a part that interferes with the falling, the position of the motor 6 and the installation base two 2 can be appropriately horizontally and laterally adjusted, so that the corresponding avoidance slot can avoid the interference part, and then the falling of the motor 6 is completed.

[0117] The above only describes 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 modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electric machine mounting structure characterized by comprising: It includes mounting seat one (1) and mounting seat two (2); the mounting seat one (1) is equipped with vertical installation surface (1.a), at least two stoppers A (1.1) are arranged on the vertical installation surface (1.a) along horizontal transverse direction, and first emptying groove (a) is formed between adjacent two stoppers A (1.1); The motor (6) to be installed is arranged on the mounting seat two (2); the mounting seat two (2) is equipped with stopper B (2.1) matched with stopper A (1.1), and second emptying groove (b) is formed between adjacent two stoppers B (2.1); The width of the first emptying groove (a) is greater than the width of the stopper B (2.1), and the width of the second emptying groove (b) is greater than the width of the stopper A (1.1); The vertical installation surface (1.a) of the mounting seat one (1) is further provided with positioning part A (1.2), and the mounting seat two (2) is provided with positioning part B (2.2) matched with the positioning part A (1.2), the positioning part A (1.2) and the positioning part B (2.2) are matched to realize the limiting of the mounting seat two (2) in the horizontal direction, and the positioning part B (2.2) can slide upward relative to the positioning part A (1.2); The vertical installation surface (1.a) is provided with two groups of positioning part A (1.2) along horizontal transverse direction; the mounting seat two (2) is provided with positioning part B (2.2) corresponding to the positioning part A (1.2); in horizontal transverse direction, the two groups of positioning part A (1.2) are located between the two groups of positioning part B (2.2); The third emptying groove (c) is formed between the two groups of positioning part A (1.2); the fourth emptying groove (d) is formed between the two groups of positioning part B (2.2); the width of the third emptying groove (c) is greater than the width of the positioning part B (2.2); the width of the fourth emptying groove (d) is greater than the width of the positioning part A (1.2) and the width of the stopper A (1.1); In the dismounting process, the motor (6) is translated, so that the positioning part A (1.2) is dislocated with the positioning part B (2.2) and the stopper A (1.1) is dislocated with the stopper B (2.1), and the specific process is as follows: The motor (6) is translated upward until the lower end surface of the positioning part B (2.2) is higher than the upper end surface of the positioning part A (1.2); the motor (6) is translated horizontally and transversely until the positioning part A (1.2) is dislocated with the positioning part B (2.2) and the stopper A (1.1) is dislocated with the stopper B (2.1), and the vertical projection of the stopper B (2.1) is located in the first emptying groove (a), the vertical projection of the stopper A (1.1) is located in the second emptying groove (b), the vertical projection of the positioning part B (2.2) is located in the third emptying groove (c), and the vertical projection of the positioning part A (1.2) is located in the fourth emptying groove (d).

2. The motor mounting structure according to claim 1, characterized by The stopper A (1.1) is provided with step surface A (1.11); the stopper B (2.1) is provided with step surface B (2.11), and the vertical stop of the mounting seat two (2) and the motor (6) is realized through the cooperation of the step surface A (1.11) and the step surface B (2.11).

3. The motor mounting structure according to claim 1, characterized by The positioning part A (1.2) of the mounting seat one (1) is provided with a limiting through slot (1.22) in the height direction; the positioning part B (2.2) is provided with a protrusion (2.22) facing the limiting through slot (1.22), the protrusion (2.22) is arranged in the limiting through slot (1.22), and the limiting through slot (1.22) and the protrusion (2.22) are matched to realize the limiting of the mounting seat two (2) and the motor (6) in the horizontal direction; the protrusion (2.22) can slide upward along the opening direction of the limiting through slot (1.22).

4. The motor mounting structure according to claim 3, characterized by The end face of the stopper A (1.1) close to the mounting seat two (2) is a vertical connecting face The end face of the stopper B (2.1) close to the mounting seat one (1) is a vertical connecting face The vertical connecting face is attached to the vertical connecting face and the stopper A (1.1) and the stopper B (2.1) are horizontally connected through the first connecting piece. The end face of the positioning part A (1.2) close to the mounting base two (2) is a vertical connecting face The positioning part B (2.2) is provided with a vertical connecting face Fitted with the vertical connecting face The positioning part A (1.2) and the positioning part B (2.2) are horizontally connected through the second connecting piece (3).

5. The motor mounting structure according to claim 4, characterized by Further comprising a falling prevention support (8) detachably arranged on the motor, the falling prevention support (8) is used for cooperating with an external structure to block the motor from falling.

6. A bogie, characterized by Comprising a framework (4), a wheel pair (5), a motor (6), a gear box structure (7) and the motor mounting structure of claim 5; The wheel pair (5) is arranged on the framework (4); the motor (6) is mounted on the framework (4) through the motor mounting structure; the mounting seat one (1) of the motor mounting structure is fixed on the framework (4); The gear box structure (7) comprises a shaft coupling (7.1), a gear box (7.2) and a boom (7.3); the shaft coupling (7.1) comprises a shaft coupling one (7.11) and a shaft coupling two (7.12) connected with each other; the shaft coupling one (7.11) is fixed on the output end of the motor (6); the shaft coupling two (7.12) is fixed on the input end of the gear box (7.2), and the output shaft of the gear box (7.2) is the axle of the wheel pair (5); the boom (7.3) is mounted on the framework (4), and the boom (7.3) is connected with the gear box (7.2).

7. The bogie of claim 6, wherein The width of the stop part A (1.1), the positioning part A (1.2), the stop part B (2.1) and the positioning part B (2.2) of the motor mounting structure in the horizontal direction is less than the axial length of the shaft coupling two (7.12).

8. A method of disassembling an electric machine according to claim 7, characterized in that, Comprising the following steps: Step S1, disassembling each fixed structure, so that the mounting seat two (2) can slide upward and the gear box (7.2) can rotate around the axial direction of the wheel pair (5); Step S2, rotating the gear box (7.2): around the axial direction of the wheel pair (5), so that the shaft coupling two (7.12) on the input end of the gear box (7.2) and the whole motor (6) are completely staggered in the horizontal direction; Step S3, translating the motor (6), so that the positioning part A (1.2) and the positioning part B (2.2) are staggered, and the stop part A (1.1) and the stop part B (2.1) are staggered, specifically as follows: Step S3.1, translating the motor (6) upward until the lower end surface of the positioning part B (2.2) is higher than the upper end surface of the positioning part A (1.2); Step S3.2, the motor (6) horizontally transversely translates until the positioning part A (1.2) is misaligned with the positioning part B (2.2) and the stop part A (1.1) is misaligned with the stop part B (2.1), and the vertical projection of the stop part B (2.1) is located in the first avoidance slot (a), the vertical projection of the stop part A (1.1) is located in the second avoidance slot (b), the vertical projection of the positioning part B (2.2) is located in the third avoidance slot (c), and the vertical projection of the positioning part A (1.2) is located in the fourth avoidance slot (d); Step S3.3, the motor (6) is released, and the motor (6) falls downward.

9. The method of claim 8, wherein, The step S1 comprises: Step S1.1: decoupling the coupling (7.1); Step S1.2: disassembling the first and second connecting members (3) and the anti-falling bracket (8); Step S1.3: disassembling the hanger rod (7.3).

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