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 comprises: a mounting base I provided with a vertical mounting surface; at least two first stop portions are arranged on the vertical mounting surface and are spaced apart in a horizontal transverse direction, and a first empty slot is formed between two adjacent first stop portions; a mounting base II arranged on a motor to be mounted; the mounting base II is provided with a first limiting portion corresponding to each first stop portion, and a second empty slot is formed between two adjacent first limiting portions; the width of the first empty slot is greater than the width of the first limiting portion; and the width of the second empty slot is greater than the width of the first stop portion. The bogie containing the motor mounting structure can create a horizontal transverse movement space of the motor by judging the relative position relationship of bogie components, and the gear box structure can be rotated to one side or the brake clamp can be dismounted without the bogie, so that the motor can be conveniently dismounted by falling.

Description

Technical Field

[0001] This application relates to the field of bogies, specifically to a motor mounting structure, a bogie, and a method for disassembling a motor. Background Technology

[0002] As the core power component of the drive unit on the power bogie, the traction motor requires extremely high reliability in its suspension installation. The common installation method is frame-suspended, where the traction motor is mounted and fixed to the mounting base on the bogie frame using a rigid yet flexible connection structure.

[0003] During vehicle operation, the traction motor needs to be inspected and maintained regularly. Often, due to the inconsistency between the maintenance cycle of the traction motor and the maintenance cycle of other parts of the vehicle, or due to occasional quality problems, it needs to be disassembled for inspection and maintenance.

[0004] The following problems exist with the current disassembly of traction motors:

[0005] Firstly, there is insufficient available space for disassembly: 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 car body is very small, and the gap between the traction motor and other adjacent components in the drive unit is also very small, making the available space for disassembly extremely limited. 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 single unit with the motor housing. In this case, the traction motor can only be moved upwards to leave the frame. Therefore, when the traction motor fails and needs to be replaced, it is usually necessary to lift the car, separate the bogie from 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, lifting the car body is extremely inconvenient, this maintenance process is time-consuming and labor-intensive, the maintenance difficulty and intensity are high, and the physical exertion of workers is severe.

[0006] Among the more common technical solutions currently available, the following solutions address the issue of the traction motor only being able to move upwards to leave the frame:

[0007] The technical solution disclosed in CN107310563B involves mounting the traction motor on a bogie mounting base via three elastic joints (two on top and one on the bottom). The disassembly process involves first removing the mounting bolts of the elastic joints, then lifting the motor to a certain height so that the elastic joints are fully positioned on the mounting base. Next, the motor is moved towards the non-drive end, allowing the traction motor's elastic suspension to slide down through the gap between the two bogie mounting bases into the pit, thus achieving motor disassembly without mounting the vehicle. The drawback of this technical solution is that it requires a sufficiently large distance (greater than the lateral dimension of a single elastic suspension) between the non-drive end of the traction motor and the wheelset or brake. However, with the increase in overall vehicle power, the distance between the non-drive end of the traction motor and the wheelset or brake is generally only about 30mm. Bogies with such a spatial arrangement (i.e., the technical solution of patent CN107310563B) are rare.

[0008] The technical solution with publication number CN110304090A discloses a traction motor mounted on a bogie mounting base via four elastic joints (two on top and two on the bottom). The motor mounting surface consists of two parallel vertical planes with countersunk holes. Steel sleeves in the elastic joints engage with these countersunk holes to position the motor and prevent it from falling vertically. The motor is then secured to the bogie with four bolts. Disassembly involves removing the movable anti-fall bracket, removing the four mounting bolts, and pulling out the four steel sleeves, allowing the motor to fall freely. The disadvantages of this technical solution are: it is suitable for traction motors with elastic mounting, requires a large installation space, and is unsuitable for compact rigid suspension systems. Furthermore, the four steel sleeves require high installation precision and are prone to deformation and damage due to uneven stress, making them difficult to remove in practice.

[0009] In summary, there is an urgent need for a motor mounting structure, bogie, and motor disassembly method to solve the problem in the existing technology of how to conveniently and easily disassemble and replace the motor without lifting the vehicle or disassembling the wheelsets. Summary of the Invention

[0010] The purpose of this invention is to provide a motor mounting structure to solve the problem of the difficulty in disassembling traction motors.

[0011] To achieve the above objectives, the present invention provides a motor mounting structure, comprising:

[0012] Mounting base one and mounting base two;

[0013] The mounting base is provided with a vertical mounting surface; at least two first stop portions are provided at horizontal intervals along the vertical mounting surface, and a first clearance groove is formed between two adjacent first stop portions.

[0014] The second mounting base is set on the motor to be installed; the second mounting base is provided with a first limiting part that corresponds to and cooperates with the first stop part, and a second clearance groove is formed between two adjacent first limiting parts.

[0015] The width of the first clearance groove is greater than the width of the first limiting part; the width of the second clearance groove is greater than the width of the first stop part.

[0016] Preferably, the first stop portion is provided with a first stepped surface; the first limiting portion is provided with a second stepped surface, and the vertical stop of the mounting base and the motor is achieved by the cooperation of the first stepped surface and the second stepped surface.

[0017] Preferably, at least two second stop portions are provided at intervals along the horizontal direction on the vertical mounting surface, and a third clearance groove is formed between two adjacent second stop portions; the second stop portions are located above the first stop portions;

[0018] The mounting base 2 is provided with a second limiting part that corresponds to and cooperates with the second stop part, and a fourth clearance groove is formed between two adjacent second limiting parts;

[0019] The width of the third clearance groove is greater than the width of the second limiting part; the width of the fourth clearance groove (d) is greater than the width of the second stop part.

[0020] Preferably, the second stop portions are independent mounting surfaces and are parallel vertical mounting surfaces to each other.

[0021] Preferably, the first clearance groove corresponds one-to-one with the third clearance groove and forms a clearance channel one in the vertical direction for avoiding the first limiting part and the second limiting part, and the second clearance groove corresponds one-to-one with the fourth clearance groove and forms a clearance channel two in the vertical direction for avoiding the first stop part and the second stop part.

[0022] Preferably, it also includes an anti-falling component, which includes an anti-falling plate disposed on the first mounting base and a limiting slot disposed on the second mounting base; the limiting slot is inserted and fitted with the anti-falling plate.

[0023] Preferably, the anti-fall plate has a T-shaped structure, which cooperates with the limiting slot to form a vertical limiting stop, and the anti-fall plate is detachably fixed to the mounting base through a first connector.

[0024] Preferably, the first stop portion is provided with a vertical connecting surface, the first limiting portion is provided with a vertical connecting surface, the vertical connecting surfaces are in contact with each other, and the first stop portion and the first limiting portion are detachably fixedly connected by a second connector.

[0025] The second stop portion is provided with a vertical connecting surface, and the second limiting portion is provided with a vertical connecting surface that corresponds to the vertical connecting surface. The vertical connecting surfaces fit together, and the second stop portion and the second limiting portion are detachably fixedly connected by a third connector.

[0026] A bogie includes a frame, wheelsets, brake calipers, a motor, a gearbox structure, and a motor mounting structure.

[0027] The wheelset is mounted on the frame; the brake caliper is mounted on the frame for braking the wheelset; the motor is mounted on the frame via the motor mounting structure; the mounting base of the motor mounting structure is fixed on the frame.

[0028] The gearbox structure includes a coupling, a gearbox, and a lifting rod;

[0029] The coupling includes a first coupling and a second coupling connected to each other; the first coupling is fixed to the output end of the motor; the second coupling is fixed to the input end of the gearbox, and the output shaft of the gearbox is the axle of the wheelset; the hanger is mounted on the frame and is connected to the gearbox.

[0030] A method for disassembling an electric motor, comprising the following steps:

[0031] Step S000: Determine and compare the distance D from the non-drive end of the motor to the end face of the wheelset, the horizontal width B of the first stop and the second stop, and the axial length C of the second coupling.

[0032] Step S110: When the end face distance D is greater than the width B, the motor is moved in the direction of the brake caliper to disassemble it.

[0033] Step S111: Remove all fixed structures and anti-fall devices, disassemble the brake caliper, and create space for the second mounting base and the motor to move in the direction of non-transmission end;

[0034] Step S112: Decouple the coupling by moving the second mounting base and the motor toward the non-transmission end, so that the second coupling on the input end of the gearbox and the entire motor are completely disengaged in the horizontal direction.

[0035] Step S113: When the mounting base two and the motor are translated towards the non-transmission end, causing the second stop part to misalign with the second limiting part and the first stop part to misalign with the first limiting part, the motor can fall downwards, as detailed below:

[0036] The mounting base and the motor are moved horizontally, while simultaneously satisfying the following conditions: the vertical projection of the first limiting part is located in the first clearance groove, the vertical projection of the first stop part is located in the second clearance groove, the vertical projection of the second limiting part is located in the third clearance groove, and the vertical projection of the second stop part is located in the fourth clearance groove.

[0037] Then the motor is released, and it falls downwards.

[0038] Step S120: When the end face distance D is less than the width B, the axial length C is greater than the end face distance D, and the axial length C is greater than the width B, then the motor is disassembled in the direction of the gearbox structure.

[0039] Step S121: Disassemble each fixed structure and anti-fall device so that the mounting base 2 and the motor can move horizontally and laterally and the gearbox can rotate around the axis of the wheelset;

[0040] Step S122: Rotate the gearbox: around the axis of the wheelset, so that the coupling two on the input end of the gearbox and the entire motor are completely disengaged in the horizontal direction;

[0041] Step S123: When the mounting base two and the motor move translating towards the transmission end, causing the second stop part to misalign with the second limiting part and the first stop part to misalign with the first limiting part, the motor can then fall downwards, as detailed below:

[0042] The mounting base and the motor are moved horizontally, while simultaneously satisfying the following conditions: the vertical projection of the first limiting part is located in the first clearance groove, the vertical projection of the first stop part is located in the second clearance groove, the vertical projection of the second limiting part is located in the third clearance groove, and the vertical projection of the second stop part is located in the fourth clearance groove.

[0043] Then the motor is released, and it falls downwards.

[0044] The application of the technical solution of the present invention has the following beneficial effects:

[0045] (1) The motor mounting structure of the present invention is provided with mutually cooperating mounting seats (i.e., mounting seat one and mounting seat two). Multiple sets of first stop parts on mounting seat one prevent the motor (such as a traction motor) from falling or detaching. Furthermore, a first clearance groove is formed between two adjacent sets of first stop parts and a second clearance groove is formed between two adjacent sets of first limit parts. The design of the clearance groove facilitates the disassembly and assembly of the motor in a small space. The first limit part and the first stop part can be horizontally separated, and the first limit part and the first stop part can be vertically separated by the corresponding clearance parts, allowing the motor to fall vertically downward. In the present invention, the motor can be easily detached from below by moving a small distance horizontally during disassembly. It has very good practicality when disassembling in a small space. The structure is compact and can reserve space for the assembly of other components.

[0046] (2) The first stop part and the first limiting part of the present invention are engaged by a step (i.e., the engagement of the first step surface and the second step surface), so that the first stop part can play a stopping role on the mounting base and the motor in the vertical direction and is stable.

[0047] (3) In this invention, multiple sets of corresponding clearance slots form clearance channel one and clearance channel two. Clearance channel one provides downward clearance space for the limiting part, while clearance channel two provides downward clearance space for the stop part, which facilitates the motor to fall downward quickly without interference.

[0048] (4) In this invention, the mounting base one and mounting base two are connected by a vertical connecting surface that fits together, which can ensure the installation and disassembly of the motor in a small space. Furthermore, the connection between the various structures is reinforced by the first connecting piece and the second connecting piece, which plays a stabilizing role.

[0049] (5) The bogie disclosed in this invention adopts the motor mounting structure described above. The bogie makes reasonable use of space, the motor has strong stability and takes into account the convenience of disassembly and assembly of the motor. It can meet the high-efficiency maintenance needs of disassembling and assembling the motor without lifting the vehicle during maintenance.

[0050] (6) The motor disassembly method disclosed in this invention is used to remove the motor from the bogie. Based on the motor mounting structure in this invention, the disassembly space is created by disassembling the brake caliper or gearbox and rotating the gearbox according to the arrangement space size of different parts on the bogie. This allows the motor (traction motor) to be quickly dropped out. In other words, the disassembly method of this invention reconstructs the disassembly process of the motor, exchanges the space, creates usable operating space, greatly simplifies the disassembly work, and significantly reduces costs and increases efficiency.

[0051] Compared to existing technologies, this invention has the following advantages: a) Intermittent arrangement is used between multiple sets of first stop parts, multiple sets of second stop parts, multiple sets of first limit parts, and multiple sets of second limit parts (intermittent arrangement provides clearance space), allowing the motor to slide vertically downwards in the presence of a pit without other complicated operations; b) It can simultaneously meet the requirements of new construction, where the motor is hoisted into the bogie from top to bottom (consistent with the traditional installation process); c) During maintenance, the traction motor can be removed from the bogie and moved into the pit without lifting the vehicle, achieving efficient and convenient disassembly. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] In the attached diagram:

[0054] Figure 1 This is a schematic diagram of the bogie structure in this embodiment;

[0055] Figure 2 This is a schematic diagram of the structure of mounting base one in this embodiment;

[0056] Figure 3 yes Figure 2 Front view structural schematic diagram of mounting base 1;

[0057] Figure 4 This is a schematic diagram of the structure of mounting base two in this embodiment;

[0058] Figure 5 yes Figure 4 Main view of mounting bracket 2;

[0059] Figure 6 This is a schematic cross-sectional view of the mating structure of mounting base one and mounting base two in this embodiment;

[0060] Figure 7 yes Figure 1 A top view of the bogie's structure;

[0061] Figure 8 This is a schematic diagram of the decoupled brake caliper in the motor disassembly method of this embodiment;

[0062] Figure 9 This is a schematic diagram of the structure of the motor being moved towards the non-drive end in the motor disassembly method of this embodiment;

[0063] Figure 10 This is a schematic diagram of the structure of the motor being lowered to the non-drive end in the motor disassembly method of this embodiment;

[0064] Figure 11 This is a schematic diagram of the structure of decoupling the coupling and rotating the gearbox in the motor disassembly method of this embodiment;

[0065] Figure 12 This is a schematic diagram of the structure of the motor being moved towards the transmission end in the motor disassembly method of this embodiment;

[0066] Figure 13 This is a schematic diagram of the structure of the motor being lowered to the transmission end in the motor disassembly method of this embodiment.

[0067] Figure label:

[0068] 1. Mounting base one; 1.1. First stop; 1.11. First stepped surface; 1.2. Second stop; 1.3. Anti-fall plate; 2. Mounting base two; 2.1. First limiting part; 2.11. Second stepped surface; 2.2. Second limiting part; 2.3. Limiting slot; 3. Frame; 4. Wheelset; 5. Brake caliper; 6. Motor; 7. Gearbox structure; 7.1. Coupling; 7.11. Coupling one; 7.12. Coupling two; 7.2. Gearbox; 7.3. Hanging rod;

[0069] a) First evacuation slot; b) Second evacuation slot; c) Third evacuation slot; d) Fourth evacuation slot; Detailed Implementation

[0070] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0071] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0072] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0074] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0075] This embodiment discloses a motor mounting structure, a bogie, and a motor disassembly method. First, the motor mounting structure in this embodiment will be described.

[0076] The motor mounting structure in this embodiment includes mounting base 1 and mounting base 2.

[0077] like Figure 1 As shown, the mounting base 1 is fixed on the structure where the motor 6 needs to be installed (preferably the frame 3 in the bogie in this embodiment);

[0078] The second mounting base 2 is fixed to the body of the motor 6 (i.e., the traction motor). The motor 6 is positioned and installed through the cooperation of the first mounting base 1 and the second mounting base 2, as detailed below:

[0079] like Figures 2 to 3 As shown, the mounting base 1 is provided with a vertical mounting surface, which faces the mounting base 2.

[0080] At least two sets of first stop portions 1.1 (preferably two sets in this embodiment) are arranged at horizontal intervals on the vertical mounting surface. A first clearance groove a is formed between two horizontally adjacent sets of first stop portions 1.1. The function of the first stop portions 1.1 is to provide vertical stops for the mounting base 2 and the motor 6. The function of the first clearance groove a is to provide clearance space when disassembling the motor 6 (specifically, to provide clearance space for the first limiting portion 2.1 and the second limiting portion 2.2 on the mounting base 2). It should be defined here that, in this embodiment, horizontal refers to the axial direction of the output shaft of the motor 6 (that is, the axial direction of the axle on the bogie or the width direction of the track), and horizontal longitudinal can be known as the front-to-back direction (that is, the track length direction).

[0081] like Figure 4 and Figure 5 As shown, the structure of the mounting base 2 that cooperates with the first stop 1.1 is as follows: the mounting base 2 is provided with a first limiting part 2.1 corresponding to the first stop 1.1. The first stop 1.1 provides a vertical stop to the first limiting part 2.1, thereby preventing the motor 6 from falling. Multiple sets of the first limiting parts 2.1 are arranged at horizontal intervals, and a second clearance groove b is formed between the multiple sets of the first limiting parts 2.1 in the horizontal direction. The second clearance groove b is used to avoid the first stop 1.1 when disassembling the motor 6. It should be noted that: in this embodiment, preferably, the width of the first stop 1.1 and the first limiting part 2.1 is the same in the horizontal direction, the width of the first clearance groove a in the horizontal direction is greater than the width of the first limiting part 2.1 and the second limiting part 2.2, and the width of the second clearance groove b in the horizontal direction is greater than the width of the first stop 1.1.

[0082] like Figure 2 As shown, the principle of the first stop part 1.1 and the first limiting part 2.1 in providing vertical stop is as follows: the first stop part 1.1 is provided with a first stepped surface 1.11, and the first limiting part 2.1 is provided with a second stepped surface 2.11. The second stepped surface 2.11 is engaged with the first stepped surface 1.11. After the motor 6 is installed, the first stepped surface 1.11 provides vertical stop to the second stepped surface 2.11, so as to realize the vertical stop function of the motor 6 (i.e., prevent the motor 6 from falling).

[0083] like Figure 2 and Figure 3As shown, at least two sets of second stop portions 1.2 (preferably two sets in this embodiment) are also arranged at intervals along the horizontal direction on the vertical mounting surface. The second stop portions 1.2 are located above the first stop portions 1.1 and correspond one-to-one. A third clearance groove c is formed between two horizontally adjacent sets of second stop portions 1.2. The function of the second stop portions 1.2 is also to provide longitudinal stops for the mounting base 2 and the motor 6. The function of the third clearance groove c is to provide clearance space when disassembling the motor 6 (specifically, to provide clearance space for the second limiting portion 2.2 on the mounting base 2).

[0084] like Figure 4 and Figure 5 As shown, the structure of the mounting base 2 that cooperates with the second stop 1.2 is as follows: the mounting base 2 is provided with a second limiting part 2.2 corresponding to the second stop 1.2 one-to-one; multiple sets of the second limiting parts 2.2 are arranged at horizontal intervals (the second limiting parts 2.2 are located above the first limiting parts 2.1); and a fourth clearance groove d is formed horizontally between the multiple sets of the second limiting parts 2.2. The fourth clearance groove d is used to avoid the second stop 1.2 when disassembling the motor 6. It should be noted that: in this embodiment, preferably, the width of the second stop 1.2 and the second limiting part 2.2 is the same in the horizontal direction; the width of the third clearance groove c in the horizontal direction is greater than the width of the second limiting part 2.2; and the width of the fourth clearance groove d in the horizontal direction is greater than the width of both the first stop 1.1 and the second stop 1.2.

[0085] The second stop portion 1.2 and the second limiting portion 2.2 are independently distributed and both are mounted on a vertical plane. Furthermore, as... Figure 6 As shown, a fall arrestor plate 1.3 is detachably and fixedly connected to the mounting base 1, and a limiting slot 2.3 is fixedly connected to the mounting base 2. The fall arrestor plate 1.3 and the limiting slot 2.3 form a fall arrestor device. Its working principle is as follows: after the limiting slot 2.3 is inserted into and cooperates with the fall arrestor plate 1.3, it is detachably and fixedly connected through the first connecting piece (not shown). After the connection is completed, the limiting slot 2.3 and the fall arrestor plate 1.3 can provide fall arrest protection in both vertical and horizontal directions, providing multiple protections for the traction motor.

[0086] Preferably, the first stop portion 1.1, the second stop portion 1.2, the first limiting portion 2.1, and the second limiting portion 2.2 described above are further provided with the following mating structure:

[0087] The end face of the first stop part 1.1 near the mounting base 2 is a vertical connecting surface, and the end face of the first limiting part 2.1 that cooperates with the first stop part 1.1 near the mounting base 1 is a vertical connecting surface. When the motor 6 is installed, the first stop part 1.1 and the first limiting part 2.1 are connected by a second connector (not shown). After the connection is completed, the vertical connecting surfaces are in a state of tight fit.

[0088] The end face of the second stop part 1.2 near the mounting base 2 is a vertical connecting surface, and the end face of the second limiting part 2.2 that cooperates with the second stop part 1.2 near the mounting base 1 is a vertical connecting surface. When the motor 6 is installed, the second stop part 1.2 and the second limiting part 2.2 are connected by a third connector (not shown). After the connection is completed, the vertical connecting surfaces are in a state of tight fit.

[0089] The first, second, and third connectors mentioned above are all preferably threaded. The first, second, and third connectors are all connected horizontally. Specifically, the first connector is connected between the anti-fall plate 1.3 and the limiting groove 2.3; the second connector is connected between the first stop 1.1 and the first limiting part 2.1; and the third connector is connected between the second stop 1.2 and the second limiting part 2.2.

[0090] It should be noted that:

[0091] In this embodiment, the motor mounting structure, by setting multiple sets of clearance slots, can avoid corresponding structures when the motor 6 needs to be disassembled, so that the motor 6 can fall downwards. Specifically, in this embodiment, the first clearance slot a formed by the two sets of first stop portions 1.1 and the third clearance slot c formed by the two sets of second stop portions 1.2 are vertically aligned, forming a clearance channel one for avoiding the first limiting portion 2.1 and the second limiting portion 2.2. Similarly, in this embodiment, the second clearance slot b formed by the two sets of first limiting portions 2.1 and the fourth clearance slot d formed by the two sets of second limiting portions 2.2 are vertically aligned, forming a clearance channel two for avoiding the first stop portion 1.1 and the second stop portion 1.2. When the motor 6 needs to be disassembled, it is only necessary to horizontally misalign the corresponding limiting portions and stop portions.

[0092] The structure of a bogie disclosed in this embodiment is as follows: Figure 1 As shown:

[0093] The bogie includes a frame 3, wheelsets 4, brake calipers 5, a motor 6, a gearbox structure 7, and the motor mounting structure.

[0094] The frame 3 is the main structure of the bogie;

[0095] This embodiment has two sets of wheelsets 4, one at the front and one at the rear, respectively, located at the front and rear of the frame 3. The motor 6 (traction motor 6) is mounted on the frame 3 (specifically, the crossbeam of the frame 3) via the motor mounting structure described in this embodiment. The gearbox structure 7 transmits power to the motor 6. The mounting base 1 of the motor mounting structure is fixed to the crossbeam of the frame 3, and the mounting base 2 is fixed to the body of the motor 6. The motor 6 is mounted by the cooperation of the mounting base 1 and the mounting base 2.

[0096] The brake caliper 5 is connected to the frame 3 via a detachable fixed connection structure, wherein the braking part is close to the wheelset 4 for braking.

[0097] The gearbox structure 7 includes a coupling 7.1, a gearbox 7.2, and a lifting rod 7.3;

[0098] The coupling 7.1 includes a first coupling 7.11 and a second coupling 7.12, which are connected by flange bolts. The first coupling 7.11 is fixed to the output shaft of the motor 6, and the second coupling 7.12 is fixed to the input end of the gearbox 7.2.

[0099] The output shaft of the gearbox 7.2 is the axle of a set of wheelsets 4 (i.e., the central shaft of wheelsets 4), and the power of the motor 6 can be transmitted to the axle through the gearbox 7.2; wherein, the axial direction of the axle, the coupling 7.1, and the output shaft of the motor 6 are all horizontal.

[0100] The boom 7.3 is a stable structure for the gearbox 7.2. The upper end of the boom 7.3 is fixed to the frame 3 (specifically the crossbeam) by bolts, and the lower end of the boom 7.3 is connected to the gearbox 7.2 (preferably detachably).

[0101] In order to ensure that the motor 6 can be smoothly removed from the bogie, the axial length of the coupling 7.12 in this embodiment or the distance from the non-transmission end of the motor 6 to the end face of the wheelset 4 must be greater than the horizontal width of the first stop 1.1 and the second stop 1.2 on the mounting base 1. That is, after rotating the gearbox structure 7 to one side or removing the brake caliper 5, a horizontal movement space can be created for the motor 6, which facilitates the removal of the motor 6.

[0102] This embodiment discloses a method for disassembling a motor, which is used to disassemble the motor 6 in the bogie, such as... Figure 1 as well as Figures 7 to 13 As shown, the motor disassembly method includes the following steps:

[0103] Step S000, such as Figure 1 and Figure 7 As shown, the spatial dimensions of different components are compared to determine the disassembly scheme of the motor 6. In this embodiment, specifically, the distance D from the non-transmission end of the motor 6 to the end face of the wheelset 4, the horizontal width B of the first stop part 1.1 and the second stop part 1.2, and the axial length C of the coupling 2 7.12 are compared;

[0104] Step S110: When the end face distance D is greater than the width B, the motor 6 is moved in the direction of the brake caliper 5 to disassemble it. At this time, since the space size of the components allows, only the brake caliper 5 can be disassembled, and the motor 6 can be moved in that direction to disassemble it.

[0105] Step S111: Remove all fixed structures and fall prevention devices, as detailed below:

[0106] Step S111.1: Decouple the bolts used for connection on the coupling 7.1 by disassembling them, and separate the coupling 7.1 into two halves;

[0107] Step S111.2: Disassemble the first connector and the second connector and remove the third connector, that is, remove the first connector, the second connector and the third connector, release the horizontal and vertical connection between the mounting base 1 and the mounting base 2, and at the same time, disengage the anti-falling plate 1.3 from the limiting slot 2.3 and remove it.

[0108] Step S111.3, as follows Figure 8 As shown, the brake caliper 5 is decoupled from all connecting structures of the frame 3, and the brake caliper 5 is removed from the disassembly frame, creating space for the mounting base 2 and the motor 6 to move in the non-transmission direction;

[0109] Step S112, as follows Figure 9 As shown, the mounting base 2 and the motor 6 are moved in the direction of non-transmission end, so that the coupling 7.12 on the input end of the gearbox 7.2 and the entire motor 6 are completely disengaged in the horizontal direction;

[0110] Step S113, as follows Figure 10As shown, when the mounting base 2 and the motor 6 are translated towards the non-transmission end, causing the second stop 1.2 to misalign with the second limiting part 2.2, and the first stop 1.1 to misalign with the first limiting part 2.1, the motor 6 can then fall downwards, as detailed below:

[0111] The mounting base 2 and the motor 6 are moved horizontally, while simultaneously satisfying the following conditions: the vertical projection of the first limiting part 2.1 is located in the first clearance groove a, the vertical projection of the first stop part 1.1 is located in the second clearance groove b, the vertical projection of the second limiting part 2.2 is located in the third clearance groove c, and the vertical projection of the second stop part 1.2 is located in the fourth clearance groove d.

[0112] Then the motor 6 is released, and the motor 6 falls downwards.

[0113] Step S120: When the end face distance D is less than the width B, the axial length C is greater than the end face distance D, and the axial length C is greater than the width B, then the motor 6 is disassembled in the direction of the gearbox structure 7. At this time, due to the space size limitation of the components, it is necessary to remove the fixing structure and rotate the gearbox structure 7 to create space for the motor 6 to fall.

[0114] Step S121: Disassemble each fixing structure and anti-fall device, as follows:

[0115] Step S121.1: Decouple the bolts used for connection on the coupling 7.1 by disassembling them, and separate the coupling 7.1 into two halves;

[0116] Step S121.2: Disassemble the first connector and the second connector and remove the third connector, that is, remove the first connector, the second connector and the third connector, release the horizontal and vertical connection between the mounting base 1 and the mounting base 2, and at the same time, disengage the anti-falling plate 1.3 from the limiting slot 2.3 and remove it.

[0117] Step S121.3, as follows Figure 11 As shown, the hanger 7.3 used to fix the gearbox 7.2 is removed. At the same time, any other structures used to fix the gearbox 7.2 are also removed. That is, after the hanger 7.3 is removed, the gearbox 7.2 is released and can now rotate around the axle of the wheelset 4.

[0118] Step S122: Before rotating the gearbox 7.2, drain the oil from the gearbox 7.2, and then rotate the gearbox 7.2 around the axis of the wheelset 4 (clockwise or counterclockwise depending on the shaft position) so that the coupling 7.12 on the input end of the gearbox 7.2 and the entire motor 6 are completely disengaged in the horizontal direction. In other words, the projections of the motor 6 and the coupling 6.12 on the axis of the wheelset 4 do not coincide. At this time, the motor 6 has a space of half the axial length of the coupling (i.e., coupling 6.12) on the transmission end (gearbox 6.2 side).

[0119] Step S123, as follows Figure 12 and Figure 13 As shown, when the mounting base 2 and the motor 6 are translated towards the transmission end, causing the second stop 1.2 to misalign with the second limiting part 2.2, and the first stop 1.1 to misalign with the first limiting part 2.1, the motor 6 can then fall downwards, as detailed below:

[0120] The horizontally movable mounting base 2 and motor 6 are simultaneously satisfied that the vertical projection of the first limiting part 2.1 is located in the first clearance groove a, the vertical projection of the first stop part 1.1 is located in the second clearance groove b, the vertical projection of the second limiting part 2.2 is located in the third clearance groove c, and the vertical projection of the second stop part 1.2 is located in the fourth clearance groove d.

[0121] Then the motor 6 is released, and the motor 6 falls downwards.

[0122] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for disassembling a motor, used to disassemble a motor in a bogie, the structure comprising: The frame (3), wheelset (4), brake caliper (5), motor (6), gearbox structure (7), and motor mounting structure; The motor mounting structure includes: mounting base one (1) and mounting base two (2); The mounting base (1) is provided with a vertical mounting surface; at least two first stop portions (1.1) are provided on the vertical mounting surface at horizontal intervals, and a first clearance groove (a) is formed between two adjacent first stop portions (1.1). The second mounting base (2) is mounted on the motor (6) to be installed; the second mounting base (2) is provided with a first limiting part (2.1) that corresponds to the first stop part (1.1) and a second clearance groove (b) is formed between two adjacent first limiting parts (2.1); The width of the first clearance groove (a) is greater than the width of the first limiting part (2.1); the width of the second clearance groove (b) is greater than the width of the first stop part (1.1); At least two second stop portions (1.2) are also provided at intervals along the horizontal direction on the vertical mounting surface, and a third clearance groove (c) is formed between two adjacent second stop portions (1.2); the second stop portions (1.2) are located above the first stop portion (1.1); The mounting base 2 (2) is provided with a second limiting part (2.2) that corresponds to the second stop part (1.2) one by one, and a fourth clearance groove (d) is formed between two adjacent second limiting parts (2.2); The width of the third clearance groove (c) is greater than the width of the second limiting part (2.2); the width of the fourth clearance groove (d) is greater than the width of the second stop part (1.2); The wheelset (4) is mounted on the frame (3); the brake caliper (5) is mounted on the frame (3) for braking the wheelset (4); the motor (6) is mounted on the frame (3) via the motor mounting structure; the mounting base (1) of the motor mounting structure is fixed on the frame (3); The gearbox structure (7) includes a coupling (7.1), a gearbox (7.2), and a lifting rod (7.3). The coupling (7.1) includes a first coupling (7.11) and a second coupling (7.12) connected to each other; the first coupling (7.11) is fixed on the output end of the motor (6); the second coupling (7.12) is fixed on the input end of the gearbox (7.2), and the output shaft of the gearbox (7.2) is the axle of the wheelset (4); the boom (7.3) is mounted on the frame (3), and the boom (7.3) is connected to the gearbox (7.2); Its features include the following steps: Step S000: Determine and compare the distance D from the non-transmission end of the motor (6) to the end face of the wheelset (4), the horizontal width B of the first stop (1.1) and the second stop (1.2), and the axial length C of the coupling (7.12); Step S110: When the end face distance D is greater than the width B, the motor (6) is disassembled by moving it in the direction of the brake caliper (5). Step S111: Remove all fixed structures and anti-fall devices, disassemble the brake caliper (5), and create space for the mounting base (2) and the motor (6) to move in the direction of non-transmission end; Step S112: Decouple the coupling (7.1), move the mounting base (2) and the motor (6) to the non-transmission end direction, so that the coupling (7.12) on the input end of the gearbox (7.2) and the entire motor (6) are completely disengaged in the horizontal direction; Step S113: When the mounting base (2) and the motor (6) move in the direction of non-transmission end, causing the second stop (1.2) to be misaligned with the second limiting part (2.2) and the first stop (1.1) to be misaligned with the first limiting part (2.1), the motor (6) falls downward, as follows: The mounting base (2) and the motor (6) are moved horizontally, while simultaneously satisfying that the vertical projection of the first limiting part (2.1) is located in the first clearance groove (a), the vertical projection of the first stop part (1.1) is located in the second clearance groove (b), the vertical projection of the second limiting part (2.2) is located in the third clearance groove (c), and the vertical projection of the second stop part (1.2) is located in the fourth clearance groove (d); Then the motor (6) is released, and the motor (6) falls downwards; Step S120: When the end face distance D is less than the width B, the axial length C is greater than the end face distance D, and the axial length C is greater than the width B, then the motor (6) is disassembled in the direction of the gearbox structure (7). Step S121: Disassemble each fixed structure and anti-fall device so that the mounting base (2) and the motor (6) can move horizontally and laterally and the gearbox (7.2) can rotate around the wheel pair (4) axially; Step S122: Rotate the gearbox (7.2): around the axis of the wheelset (4), so that the coupling two (7.12) on the input end of the gearbox (7.2) and the entire motor (6) are completely disengaged in the horizontal direction; Step S123: When the mounting base (2) and the motor (6) move in the direction of the transmission end, causing the second stop (1.2) to be misaligned with the second limiting part (2.2) and the first stop (1.1) to be misaligned with the first limiting part (2.1), the motor (6) falls downward, as follows: The mounting base (2) and the motor (6) are moved horizontally, while simultaneously satisfying that the vertical projection of the first limiting part (2.1) is located in the first clearance groove (a), the vertical projection of the first stop part (1.1) is located in the second clearance groove (b), the vertical projection of the second limiting part (2.2) is located in the third clearance groove (c), and the vertical projection of the second stop part (1.2) is located in the fourth clearance groove (d); Then the motor (6) is released, and the motor (6) falls downwards.

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