Traction motor module, bogie and vehicle

Abstract

The invention discloses a traction motor module, a bogie and a vehicle, and relates to the technical field of vehicle engineering. The traction motor module comprises a traction motor; a traction motor is arranged on one longitudinal side of the transition mounting seat, and a node mounting seat is fixed on the other longitudinal side of the transition mounting seat; the middle part of the elastic hanging node in the transverse direction is connected to the corresponding node mounting seat, and the two ends of the elastic hanging node in the transverse direction are provided with connecting shafts so as to be elastically hung on the framework. The traction motor and the elastic hanging node can be integrated into a module through the transition mounting base, a traditional rigid frame suspension type traction motor can be changed into an elastic hanging frame, the vibration grade of the traction motor can be remarkably reduced, the working state of the traction motor can be improved, the service life of the bogie can be prolonged, and the traction motor is suitable for the application scene after acceleration; the transverse middle part of the elastic hanging node is connected with the node mounting seat, and the connecting shafts on the two sides are connected with the framework, so that a stable elastic hanging structure is formed, the bearing capacity is higher, and transverse vibration can be better absorbed.

Description

Technical Field

[0001] This invention relates to the field of vehicle engineering technology, and in particular to a traction motor module, a bogie, and a vehicle. Background Technology

[0002] A common method for positioning traction motors in rail vehicles is the rigid frame suspension system. Based on past operational experience, the frame suspension system can meet the operational requirements of the vehicles.

[0003] However, with the further increase in the operating speed of rail vehicles, the dynamic excitation between the wheel and rail is significantly increased, the vibration level is higher, which affects the working condition of the traction motor. It is necessary to improve the existing traction motor positioning method to improve the working condition of the traction motor and extend its service life.

[0004] Therefore, how to reduce the vibration level of traction motors is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the object of the present invention is to provide a traction motor module, bogie, and vehicle that can reduce the vibration level of the traction motor.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The present invention provides a traction motor module, comprising: a traction motor; a transition mounting base, wherein the traction motor is disposed on one side in the longitudinal direction and a node mounting base is fixed on the other side; and an elastic suspension node, wherein the traction motor is connected to the corresponding node mounting base in the middle in the transverse direction and the two ends in the transverse direction have connecting shafts for elastic suspension to the frame.

[0008] In one exemplary embodiment, the plurality of elastic suspension nodes are first elastic nodes connected sequentially to the transition mounting base in the lateral direction, and a lateral stop structure is also fixed on the transition mounting base between adjacent first elastic nodes in the lateral direction.

[0009] In one exemplary embodiment, the transition mounting base is further connected to a motor lateral vibration damping component, one end of which is used to connect to the frame.

[0010] The present invention provides a bogie, comprising: the traction motor module as described above; and a frame including a crossbeam, wherein the elastic suspension node is elastically suspended from the crossbeam.

[0011] In one exemplary embodiment, a first connecting seat is fixedly connected to the crossbeam, the first connecting seat being connected to the elastic hanging node; the crossbeam has an upper cover plate edge and a lower cover plate edge protruding from one of its longitudinal sides, and a crossbeam positioning groove is provided between the upper cover plate edge and the lower cover plate edge; the first connecting seat includes a first connecting plate and a second connecting plate disposed below the first connecting plate, a slot is provided between the first connecting plate and the second connecting plate, the upper cover plate edge of the crossbeam is longitudinally inserted into the slot, and the second connecting plate is longitudinally inserted into the crossbeam positioning groove.

[0012] In one exemplary embodiment, the top surface of the first connecting seat is provided with a hanging groove to support and connect the connecting shaft of the elastic hanging node; a motor lateral vibration damping component is provided on the transition mounting seat below the first elastic node, and the first connecting seat has a C-shaped clearance groove on the side away from the crossbeam in the longitudinal direction to avoid the motor lateral vibration damping component.

[0013] In one exemplary embodiment, it further includes a first connecting seat fixedly connected to one longitudinal side of the crossbeam and a second connecting seat fixedly connected to the bottom surface of the crossbeam; on the same side of the crossbeam in the longitudinal direction, there are multiple first connecting seats arranged sequentially in the transverse direction to form a first connecting group; there are multiple second connecting seats arranged sequentially in the transverse direction to form a second connecting group; the second connecting group is located centered in the transverse direction below the first connecting group.

[0014] In one exemplary embodiment, a T-shaped traction device is further included for connecting to the vehicle chassis; a first crossbeam hole is provided vertically through the crossbeam, and the T-shaped traction device is inserted into the first crossbeam hole; the T-shaped traction device is connected to the hole wall of the first crossbeam hole through longitudinal rubber stack traction units on both sides of its longitudinal direction, and is connected to the hole wall of the first crossbeam hole through transverse rubber stack stop units on both sides of its transverse direction.

[0015] In one exemplary embodiment, a T-shaped traction device is further included for connecting the vehicle body; a first crossbeam hole is provided vertically through the crossbeam, the T-shaped traction device is inserted into the first crossbeam hole and a vertical stop is fixed at its bottom end, and a limiting plate protruding laterally into the first crossbeam hole is provided at the bottom of the hole wall of the first crossbeam hole; the limiting plate blocks the vertical stop above to limit the extreme position of the vertical stop moving upward.

[0016] One aspect of the present invention provides a vehicle including the bogie described above.

[0017] The present invention provides a traction motor module, comprising: a traction motor; a transition mounting base, wherein the traction motor is disposed on one side in the longitudinal direction and a node mounting base is fixed on the other side; and an elastic suspension node, wherein the traction motor is connected to the corresponding node mounting base in the middle in the transverse direction and the two ends in the transverse direction have connecting shafts for elastic suspension to the frame.

[0018] The aforementioned traction motor module, with the addition of a transition mounting bracket, integrates the traction motor and the flexible suspension node into a single module. This transforms the traditional rigid-frame-suspended traction motor into one that can be connected to the frame in a flexible suspension state. Compared to rigid-frame-suspended traction motors, this significantly reduces the vibration level of the traction motor, improves its operating condition, and extends the bogie's service life, making it suitable for applications requiring increased speed. Furthermore, it facilitates the retrofitting of existing traction motors; simply adding the transition mounting bracket and its flexible suspension node enables flexible suspension. Additionally, the use of a transverse central connecting node mounting bracket and connecting shafts on both sides of the flexible suspension node to connect to the frame creates a stable flexible suspension structure with stronger load-bearing capacity and better absorption of lateral vibrations. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a partial sectional view of the bogie in a specific embodiment of the present invention;

[0021] Figure 2 for Figure 1 View from direction A;

[0022] Figure 3 This is a longitudinal view of the transition mounting base in a specific embodiment of the present invention;

[0023] Figure 4 This is a horizontal view of the transition mounting base in a specific embodiment of the present invention;

[0024] Figure 5 This is a top view of the framework in a specific embodiment of the present invention;

[0025] Figure 6 This is a longitudinal view of the crossbeam in a specific embodiment of the present invention;

[0026] Figure 7 This is a horizontal view of the first connecting seat in a specific embodiment of the present invention;

[0027] Figure 8This is a transverse view of the longitudinal beam in a specific embodiment of the present invention;

[0028] Figure 9 This is a transverse view of the T-shaped traction device in a specific embodiment of the present invention;

[0029] Figure 10 This is a longitudinal view of the second side plate in a specific embodiment of the present invention;

[0030] Figure 11 This is a transverse view of the longitudinal rubber stack traction unit in a specific embodiment of the present invention;

[0031] Figure 12 This is a longitudinal view of the T-shaped traction device in a specific embodiment of the present invention.

[0032] Figure label:

[0033] Traction motor 1, lifting lug 11, side block 12;

[0034] Transition mounting base 2, main upright plate 21, second motor mounting bolt hole 211, first side 22, transverse stop structure 23, first node seat 24, second node seat 25, motor transverse vibration damping assembly 26, first transverse vibration damper mounting base 261, first transverse vibration damper 262, motor mounting block 27, first motor mounting bolt hole 271, node mounting base 28.

[0035] Elastic suspension node 3, first elastic node 31, second elastic node 32, connecting shaft 33;

[0036] Frame 4, longitudinal beam 41, transverse beam 42, transverse beam upper cover plate 421, transverse beam upper cover plate edge 4211, transverse beam transverse vertical plate 422, transverse beam lower cover plate 423, transverse beam lower cover plate edge 4231, second transverse vibration damper mounting seat 424, transverse beam positioning groove 425, first transverse beam hole 426, limiting plate 427, gearbox hanger mounting seat 43, air spring mounting seat 44;

[0037] First connecting seat 5, first connecting plate 51, second connecting plate 52, slot 53, hanging slot 54, clearance slot 55, first connecting hole 56;

[0038] Second connecting seat 6, second connecting hole 61;

[0039] T-shaped traction device 7, first top plate 71, first column 72, vertical stop 73, inverted U-shaped plate 731, main stop plate 732, transverse rubber stack stop unit 74, longitudinal rubber stack traction unit 75, first side plate 751, middle rubber layer 752, central shaft 7521, outer rubber layer 7522, low stiffness rubber 7523, metal-layered rubber stack 753, second side plate 754, positioning mounting hole 7541, second transverse vibration damper 76;

[0040] Car body underframe 8;

[0041] The frame has an axis of symmetry S, an axle centerline O1, a bogie longitudinal centerline O2, a rail surface A, a transverse direction X, a longitudinal direction Y, and a vertical direction Z. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] The core of this invention is to provide a traction motor module, bogie, and vehicle that can reduce the vibration level of the traction motor.

[0044] For a specific embodiment of the traction motor module provided by this invention, please refer to [the relevant documentation / reference]. Figures 1 to 4 It includes a traction motor 1, a transition mounting base 2, and a flexible suspension node 3.

[0045] The transition mounting base 2 has a traction motor 1 installed on one side in the longitudinal direction and an elastic suspension node 3 connected to the other side. The elastic suspension node 3 is used to elastically suspend the frame 4, realizing the elastic suspension connection between the traction motor module and the frame 4.

[0046] The elastic suspension node 3 is capable of elastic deformation, specifically including deformation in one or more directions: lateral, longitudinal, and vertical. The longitudinal direction is the travel direction and is perpendicular to both the lateral and vertical directions. The elastic suspension node 3 may include rubber pads, silicone pads, metal springs, etc.

[0047] The aforementioned traction motor module, with the addition of the transition mounting base 2, integrates the traction motor 1 and the flexible suspension node 3 into a single module. This allows the traditional rigid frame-suspended traction motor to be connected to the frame 4 in a flexible suspension state. Compared to the rigid frame suspension of the traction motor 1, this significantly reduces the vibration level of the traction motor 1, improves its working condition, and extends the service life of the bogie, making it suitable for applications requiring increased speed. Furthermore, it facilitates the retrofitting of existing traction motor 1 by adding the transition mounting base 2 and the flexible suspension node 3 to achieve flexible suspension.

[0048] In some embodiments, such as Figure 1 As shown, the transition mounting base 2 has a traction motor 1 mounted on one side in the longitudinal direction, and a node mounting base 28 fixed on the other side, which can be welded for fixation. Figure 2As shown, the flexible suspension node 3 is connected to the corresponding node mounting base 28 at its middle position in the horizontal direction, and has connecting shafts 33 at both ends in the horizontal direction for flexible suspension to the frame 4. Specifically, the flexible suspension node 3 has elastic portions on both sides of the node mounting base 28 in the horizontal direction.

[0049] At this point, the elastic suspension node 3 is connected to the frame 4 via the horizontal mid-section connecting node mounting base 28 and the connecting shafts 33 on both sides, forming a stable elastic suspension structure with stronger load-bearing capacity and better absorption of lateral vibration. In other embodiments, the elastic suspension node 3 can also be connected to the mounting base 2 and the frame 4 at its upper and lower ends respectively.

[0050] In some embodiments, there are at least two elastic suspension nodes 3 to further ensure the stability of the elastic suspension connection, and all elastic suspension nodes 3 can work together to attenuate the vibration level of the traction motor 1.

[0051] For example, such as Figure 2 As shown, the flexible suspension node 3 includes a first flexible node 31 disposed on the upper layer and a second flexible node 32 disposed on the lower layer. For example, there may be three flexible suspension nodes 3: two first flexible nodes 31 and one second flexible node 32. These three flexible suspension nodes 3 are arranged in an equilateral or isosceles triangle. In this case, as... Figure 1 and Figure 2 As shown, the traction motor 1 is mounted on the transition mounting seat 2, which is mounted on the bogie frame 4 via a three-point elastic suspension. In other embodiments, the number of elastic suspension nodes 3 can also be other, such as one, four, etc.; the number of first elastic nodes 31 and second elastic nodes 32 can also be other, for example, there can be multiple first elastic nodes 31 and multiple second elastic nodes 32, or they can be set in equal numbers.

[0052] For example, a node mounting base 28 is welded or bolted to the first side 22 of the main upright plate 21. Figure 3 In the middle, the main upright plate 21 is provided with three node mounting seats 28, namely two first node seats 24 at the top and one first node seat 24 at the bottom. The first node seat 24 is used to install the first elastic node 31, and the second node seat 25 is used to install the second elastic node 32.

[0053] In some embodiments, to prevent excessive lateral displacement caused by elastic suspension, the transition mounting base 2 is also provided with a lateral stop structure 23. For example... Figure 1 and Figure 2As shown, the transition mounting base 2 includes a main upright plate 21, and elastic hanging nodes 3 are disposed on the first side 22 of the main upright plate 21 on one longitudinal side. Multiple elastic hanging nodes 3 are first elastic nodes 31 sequentially connected to the first side 22 in the transverse direction, and a transverse stop structure 23 is also fixed on the first side 22 between adjacent first elastic nodes 31 in the transverse direction. For example... Figure 2 and Figure 3 As shown, two first elastic nodes 31 are arranged sequentially in the transverse direction, and a transverse stop structure 23 is provided between them. Optionally, the transverse stop structure 23 is welded to the main upright plate 21. In this case, the transverse stop structure 23 can play a role in stopping and hard limiting the adjacent transverse elastic hanging nodes 3.

[0054] In some embodiments, for ease of assembly of the traction motor 1, such as Figure 2 and Figure 4 As shown, a motor mounting block 27 is fixed above the main upright plate 21, which can be welded together or integrally formed. Optionally, both the main upright plate 21 and the motor mounting block 27 can be rectangular, and the material can be iron or steel. The motor mounting block 27 extends laterally and protrudes longitudinally from the first side 22 of the main upright plate 21. The lifting lug 11 above the traction motor 1 overlaps the motor mounting block 27 and is fixedly connected to the motor mounting block 27, for example, by bolting or welding.

[0055] Optionally, such as Figure 1 As shown, the traction motor 1 can be fixedly connected to the transition mounting seat 2 through the mounting holes of the existing structure (e.g., the lug 11) and the first motor mounting bolt hole 271 on the motor mounting block 27. In addition, the traction motor 1 also has a side block 12 located below the lug 11, which is longitudinally attached to and bolted to the main upright plate 21. Thus, the transition mounting seat 2 and the traction motor 1 form an integrated module.

[0056] For example, such as Figure 1 and Figure 2 As shown, the top surface of the transverse stop structure 23 and the top surface of the first node seat 24 can fit and cooperate with the bottom surface of the part of the motor mounting block 27 that protrudes longitudinally from the first side 22. The transverse stop structure 23 and the first node seat 24 are reinforcing ribs of the motor mounting block 27, which improve the support capacity for the traction motor 1.

[0057] In some embodiments, such as Figure 2 As shown, the traction motor module also includes a lateral vibration damping component 26 to attenuate the lateral vibration of the traction motor 1, further improve the working condition of the traction motor 1, and optimize the lateral stiffness of the elastic suspension of the traction motor 1, thereby improving the vehicle's running stability. Specifically, one end of the lateral vibration damping component 26 is used to connect to the frame 4.

[0058] For example, the elastic suspension node 3 includes a first elastic node 31 and a second elastic node 32 located below the first elastic node 31; a motor lateral vibration damping component 26 is connected on the first side 22 between the first elastic node 31 and the second elastic node 32, so that the motor lateral vibration damping component 26 is centered in the longitudinal direction to enhance the lateral vibration damping function.

[0059] For example, such as Figure 2 As shown, the motor lateral vibration damping assembly 26 includes a first lateral vibration damper mounting base 261 fixed to the first side 22 of the main upright plate 21 and a first lateral vibration damper 262 connected to the first lateral vibration damper mounting base 261. The first lateral vibration damper 262 can be a hydraulic vibration damper. (Reference) Figure 5 The elastic suspension node 3 is connected to the crossbeam 42 of the frame 4 on one side of the longitudinal direction. The crossbeam 42 of the frame 4 is also provided with a second transverse damper mounting seat 424 on one side of the longitudinal direction. The transverse ends of the transverse damper are respectively connected to the first transverse damper mounting seat 261 and the second transverse damper mounting seat 424.

[0060] In addition, such as Figures 1 to 12 As shown, the present invention also provides a bogie including the above-described traction motor module. The bogie includes a frame 4, and the elastic suspension node 3 is elastically suspended from the frame 4.

[0061] In some embodiments, the frame 4 includes a crossbeam 42 and two longitudinal beams 41 fixed laterally to both sides of the crossbeam 42. The traction motor module is connected to the crossbeam 42, that is, the traction motor module is connected to the crossbeam 42 through the elastic suspension node 3 thereon, specifically connected to one side of the crossbeam 42 in the longitudinal direction to achieve elastic suspension.

[0062] In some embodiments, to facilitate the assembly of the frame 4 and the traction motor module, the bogie further includes a first connecting seat 5 fixedly connected to the frame 4, which can be welded together. The first connecting seat 5 is connected to the elastic suspension node 3, specifically to the first elastic node 31.

[0063] For example, such as Figure 1 and Figure 6 As shown, the crossbeam 42 includes a crossbeam upper cover plate 421, a crossbeam transverse vertical plate 422, and a crossbeam lower cover plate 423 arranged sequentially from top to bottom. These three plates can all be steel plates. At least one side of the crossbeam upper cover plate 421 and the crossbeam lower cover plate 423 protrudes from the corresponding crossbeam transverse vertical plate 422 in the longitudinal direction. The protruding part of the crossbeam upper cover plate 421 forms the edge 4211 of the crossbeam upper cover plate, and the protruding part of the crossbeam lower cover plate 423 forms the edge 4231 of the crossbeam lower cover plate. The edges 4211 and 4231 of the crossbeam upper cover plate and the crossbeam transverse vertical plate 422 form a longitudinally open crossbeam positioning groove 425.

[0064] In addition, such as Figure 1 and Figure 7 As shown, the first connecting seat 5 includes a first connecting plate 51 and a second connecting plate 52 disposed below the first connecting plate 51. A slot 53 is provided between the first connecting plate 51 and the second connecting plate 52. The edge 4211 of the upper cover plate of the crossbeam is longitudinally inserted into the slot 53, and the second connecting plate 52 is longitudinally inserted into the crossbeam positioning groove 425.

[0065] At this time, the cover plate edge on the crossbeam 42 is inserted into the first connecting seat 5. The first connecting seat 5 can bear the vertical load of the traction motor 1 and simultaneously serve as a reinforcing rib structure for the transverse vertical plate 422 of the bogie crossbeam. While strengthening the crossbeam 42, the vertical load of the traction motor 1 is evenly distributed on the crossbeam 42 to avoid stress concentration.

[0066] In addition to its connecting function, the crossbeam 42 at this time has a built-in positioning function, acting as a positioning clamp, which can naturally limit the first connecting seat 5 through the plug-in connection. If further welding operations are carried out, the welding constraints can be reduced, the weld can be distributed, the residual stress and deformation can be reduced, and since the plug-in interface has already borne part of the shear force and bending moment, there is no need for the weld to transmit force across the entire cross section, which can reduce the dependence on the weld quality, improve the load-bearing and seismic performance, and combine the advantages of rapid positioning of the plug-in mechanical connection with the high rigidity of welding.

[0067] For example, both the first connecting plate 51 and the second connecting plate 52 are welded to the crossbeam 42 to ensure connection strength. See details... Figure 7 In the example, the first connecting seat 5 has three welding surfaces, which are respectively welded to the upper cover plate 421 of the crossbeam, the transverse vertical plate 422 of the crossbeam, and the lower cover plate 423 of the crossbeam: the bottom surface a of the first connecting plate 51 is the upper cover plate welding surface, for welding the top surface of the upper cover plate 421 of the crossbeam; the bottom surface c of the second connecting plate 52 is the lower cover plate welding surface, for welding the top surface of the lower cover plate 423 of the crossbeam; the side b of the second connecting plate 52 extending longitudinally into the positioning groove 425 of the crossbeam is the transverse vertical plate welding surface, for welding the outer side surface of the transverse vertical plate 422 of the crossbeam 42. Optionally, a and c are parallel planes, and a and b are perpendicular planes, and are respectively fitted and matched with the crossbeam 42.

[0068] For example, in the opening direction of slot 53, the first connecting plate 51 protrudes longitudinally from the second connecting plate 52, such as... Figure 7 As shown, the first connecting plate 51 protrudes from surface b, so that during insertion, part of the first connecting plate 51 overlaps the edge 4211 of the upper cover plate of the crossbeam, and the remaining part extends longitudinally across the transverse vertical plate 422 of the crossbeam upper cover plate 421, overlapping the main body of the upper cover plate 421, further increasing structural strength. Additionally, as... Figure 7As shown, the top surface of the first connecting plate 51 is inclined relative to the top surface of the crossbeam 42, specifically along the direction close to the longitudinal center of the crossbeam 42. Figure 7 The first connecting plate 51 gradually tilts downwards (to the right) to avoid interference between the first connecting plate 51 and other structures above the crossbeam 42, thus reducing space occupation.

[0069] For example, the first connecting seat 5 is a one-piece molded structure, for example, cut from a one-piece steel plate.

[0070] For example, such as Figure 7 As shown, the first connecting seat 5 has a C-shaped clearance groove 55 on the longitudinal side away from the crossbeam 42 to avoid the lateral vibration damping assembly 26 of the motor; the C-shape here mainly refers to the arc transition at the bending position, and the C-shaped groove can reduce stress concentration. In other embodiments, the clearance groove 55 can also be a groove of other shapes. In addition, the C-shaped groove has a large coverage area on the first connecting seat 5, and the first connecting seat 5 has an overall C-shaped structure.

[0071] For example, such as Figure 7 As shown, the top surface of the first connecting seat 5 is provided with a hanging groove 54 to support and fix the connecting shaft 33 connected to the first elastic node 31. The hanging groove 54 has a simple structure and can support the connecting shaft 33 from below to position the connecting shaft 33, facilitating the assembly of the connecting shaft 33. In addition, the bottom surface of the hanging groove 54 is provided with a first connecting hole 56 for bolt fixing to the connecting shaft 33 of the first elastic node 31. Optionally, the bottom opening of the first connecting hole 56 is located at the top of the groove wall of the C-shaped groove.

[0072] In some embodiments, such as Figure 1 , Figure 2 , Figure 6 As shown, the bogie also includes a second connecting seat 6 for mounting the second elastic node 32. Optionally, the connecting shaft 33 of the second elastic node 32 is connected to one longitudinal side of the second connecting seat 6.

[0073] For example, such as Figure 1 As shown, the second connecting seat 6 has a cuboid structure and is welded to the bottom surface of the lower cover plate 423 of the crossbeam. In some other embodiments, the structure of the first connecting seat 5 can be set to be the same as that of the second connecting seat 6, and it can be moved to the top surface of the upper cover plate 421 of the crossbeam.

[0074] For example, such as Figure 1 As shown, a second connecting hole 61 is provided on one longitudinal side of the second connecting seat 6, specifically a through hole extending longitudinally and being a threaded hole. Optionally, the second connecting hole 61 is located at the center of one longitudinal side of the second connecting seat 6. During assembly, refer to... Figure 1 The connecting shaft 33 of the second connecting hole 61 and the second elastic node 32 is arranged longitudinally and fixed with bolts, which makes assembly convenient.

[0075] For example, since each elastic suspension node 3 has two connecting shafts 33, each connection 33 is connected to a node mounting seat 28 in a one-to-one correspondence. Specifically, a first elastic node 31 is connected to two first node seats 24, and a second elastic node 32 is connected to two second node seats 25. On the same side of the longitudinal direction of the crossbeam 42, each first node seat 24 is arranged in sequence along the transverse direction, and each second node seat 25 is arranged in sequence along the transverse direction.

[0076] For example, such as Figure 8 As shown, on the same side of the longitudinal direction of the crossbeam 42, there are multiple first connecting seats 5 (e.g., 4) arranged in sequence along the transverse direction to form a first connecting group; there are multiple second connecting seats 6 (e.g., 2) arranged in sequence along the transverse direction to form a second connecting group; the second connecting group is located in the center of the transverse direction below the first connecting group, and can be arranged and connected with multiple elastic hanging nodes 3 in an inverted triangular shape to ensure support stability.

[0077] In some embodiments, such as Figures 9 to 12 As shown, the bogie also includes a T-shaped traction device 7, specifically a T-shaped pin, the top of which is used to connect to the car body.

[0078] For example, the T-shaped traction device 7 includes a first top plate 71 and a first column 72 fixed below the first top plate 71. The first top plate 71 is used to connect the vehicle body frame 8. A first crossbeam hole 426 is provided vertically along the upper edge of the crossbeam 42, and the first column 72 is inserted into the first crossbeam hole 426.

[0079] like Figure 9 As shown, the first column 72 is connected to the wall of the first crossbeam hole 426 via longitudinal rubber stack traction units 75 on both sides of its longitudinal direction; as Figure 12 As shown, the first column 72 is connected to the wall of the first beam hole 426 through the transverse rubber stack stop units 74 on both sides of its transverse side.

[0080] More specifically, inside the box-shaped crossbeam 42 of the frame 4, two longitudinal rubber stack traction units 75 are symmetrically arranged in the longitudinal direction. The T-shaped traction device 7 is installed on the traction crossbeam at the bottom of the vehicle body and is inserted between the two longitudinal rubber stack traction units 75.

[0081] At this time, a T-shaped traction device 7 is used as a traction positioning device between the vehicle body underframe 8 and the frame 4. The T-shaped traction device 7 only transmits longitudinal load between the two longitudinal rubber stack traction units 75, and can maintain the decoupling of vertical, lateral and roll degrees of freedom between the vehicle body and the frame 4, avoiding the transmission of vertical and lateral vibrations. It can decouple the influence of traditional single tie rod, Z double tie rod and other traction positioning devices on the lateral and vertical additional stiffness of the vehicle body, improve the vibration transmission from the traction positioning device to the vehicle body, reduce the transmission of additional harmful vertical and lateral vibrations from the traction positioning device to the vehicle body, and improve the vehicle stability and ride comfort.

[0082] For example, the first crossbeam hole 426 is a rectangular hole; the first crossbeam hole 426 has a relatively regular rectangular opening at the cover plate of the crossbeam 42. It should be noted that the longitudinal opening size of the upper opening of the first crossbeam hole 426 must ensure that the T-type traction device 7 will not collide with the upper cover plate 421 and the lower cover plate 423 of the crossbeam when the T-type traction device 7 compresses the longitudinal rubber stack traction unit 75 to the maximum compression amount; the transverse opening size of the upper opening of the first crossbeam hole 426 must ensure that the T-type traction device 7 will not collide with the upper cover plate 421 and the lower cover plate 423 of the crossbeam when the T-type traction device 7 compresses the transverse rubber stack stop unit 74 to the maximum compression amount.

[0083] In some embodiments, the longitudinal rubber stack traction unit 75 is a nonlinear rubber stack traction unit. Specifically, referring to... Figure 9 and Figure 11 The nonlinear rubber stack traction unit includes a first side plate 751, an intermediate rubber layer 752, a metal-layered rubber stack 753, and a second side plate 754 arranged sequentially along the longitudinal direction away from the first column 72. The intermediate rubber layer 752 includes a central shaft 7521 connected to the first side plate 751 but not connected to the metal-layered rubber stack 753, and an outer rubber layer 7522 connected to the metal-layered rubber stack 753 but not connected to the first side plate 751. The outer rubber layer 7522 is sleeved on the outside of the central shaft 7521 and is connected to the central shaft 7521 by a low-stiffness rubber layer 7523.

[0084] At this point, the nonlinear rubber stack traction unit, drawing on the tie rod node gap structure, can achieve the working principle of nonlinear longitudinal stiffness. Utilizing series non-contact laminated rubber, the T-shaped traction device 7 possesses the desired nonlinear longitudinal stiffness. When there is high-frequency, low-amplitude longitudinal vibration between the frame 4 and the car body (such as wheel imbalance or rail corrugation), the high-frequency, low-amplitude vibration is borne by the low-stiffness rubber 7523 on the rubber stack, effectively isolating the longitudinal high-frequency vibration. When traction or braking loads need to be transmitted, under the action of longitudinal loads, the first plate contacts the metal laminated rubber stack 753, increasing the overall longitudinal stiffness to ensure traction or braking requirements. Simultaneously, due to the large design space available for the rubber stack, the overall shear stiffness is easily reduced to a smaller value, thereby reducing the lateral and vertical additional stiffness caused by the traditional tie rod structure, reducing the lateral and vertical constraints between the car body and frame 4 caused by the T-shaped traction device 7, and ensuring the vertical and lateral follow-up between the car body and bogie.

[0085] For example, such as Figure 10 As shown, the second side plate 754 has positioning mounting holes 7541. Optionally, the second side plate 754 is a rectangular plate, and the four positioning mounting holes 7541 are respectively located at the four apex positions of the second side plate 754. Specifically, the positioning mounting holes 7541 are bolt holes, so that each nonlinear rubber stack traction unit can be fixed to the vertical plate of the crossbeam 42, which serves as part of the hole wall of the first crossbeam hole 426, using four bolts through the positioning mounting holes 7541.

[0086] For example, such as Figure 9 As shown, two nonlinear rubber stack traction units are symmetrically arranged on both sides of the first column 72 along the longitudinal driving direction. Through the longitudinal constraint function of the two nonlinear traction rubber stacks on the T-shaped traction device 7, the traction and braking force transmission of the bogie frame 4 to the car body are realized.

[0087] In some embodiments, to prevent damage to the air springs caused by abnormal vehicle body rise and to achieve abnormal overshoot protection of the air springs, such as Figure 12 As shown, a vertical stop 73 is fixed to the bottom end of the T-shaped traction device 7. A limiting plate 427 protruding laterally into the first crossbeam hole 426 is provided at the bottom of the hole wall; the limiting plate 427 blocks the vertical stop 73 above, thereby limiting the extreme position of the vertical stop 73's upward movement. An air spring mounting seat 44 of the longitudinal beam 41 can be connected to an air spring.

[0088] During normal operation, there is a safe vertical clearance between the limit plate 427 and the vertical stop 73, such as Figure 12 Vertical clearance under orientation. If the vehicle body rises abnormally, such as when the air spring overshoots abnormally, it will collide with the limit plate 427 via the vertical stop 73 and will then be unable to rise further, thus preventing damage to the air spring caused by abnormal vehicle body rise.

[0089] For example, such as Figure 12 As shown, the first crossbeam hole 426 is provided with limiting plates 427 on both sides of the first column 72 in the transverse direction. The limiting plates 427 can be rectangular plates that are easy to process; the two limiting plates 427 can be set in a mirror symmetrical arrangement.

[0090] For example, the limiting plate 427 can be integrally formed on the lower cover plate 423 of the crossbeam.

[0091] For example, such as Figure 12 As shown, the vertical stop 73 is Ω-shaped, including an inverted U-shaped plate 731 with its opening facing downwards, and a main stop 732 formed by the outward flipping of the opening edge of the inverted U-shaped plate 731. The inverted U-shaped plate 731 serves to connect to the bottom end of the first column 72, and the main stop 732 is used for contact and impact limiting with the limiting plate 427. Optionally, the inverted U-shaped plate 731 is bolted to the bottom of the first column 72, and the bolt is embedded in the U-shaped groove of the inverted U-shaped plate 731.

[0092] In some embodiments, such as Figure 5 As shown, the crossbeam 42 is connected to the traction motor module on both sides in the longitudinal direction. Furthermore, the first connecting seat 5, the second connecting seat 6, and the second lateral damper mounting seat 424 on one side of the crossbeam 42 are arranged symmetrically with the first connecting seat 5, the second connecting seat 6, and the second lateral damper mounting seat 424 on the other side. Additionally, the crossbeam 42 has a longitudinally protruding longitudinal protrusion, a second lateral damper mounting seat 424 on its side, and a gearbox boom mounting seat 43 on its top surface, improving space utilization.

[0093] In addition to the aforementioned traction motor module and bogie, the invention also provides a vehicle that includes a bogie. Specifically, the bogie can be the bogie provided in any of the above embodiments, and the beneficial effects can be referred to the respective embodiments above. The structure of the vehicle body and other parts of the vehicle is described in the prior art and will not be repeated here.

[0094] It should be noted that when an element is referred to as "fixing" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as "connecting" another element, it can be directly connected to the other element or there may be an intervening element. Furthermore, in the description of this invention, unless otherwise stated, "multiple," "multiple roots," and "multiple groups" mean two or more.

[0095] The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 limiting the invention. Furthermore, the terms "first," "second," and "third" 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.

[0096] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0097] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0098] The traction motor module, bogie, and vehicle provided by this invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A traction motor module, characterized in that, include: Traction motor (1); The transition mounting base (2) has the traction motor (1) mounted on one side in the longitudinal direction and the node mounting base (28) fixed on the other side. The flexible suspension node (3) is connected to the corresponding node mounting base (28) at the middle in the lateral direction, and has connecting shafts (33) at both ends in the lateral direction to be flexibly suspended from the frame (4).

2. The traction motor module according to claim 1, characterized in that, The multiple elastic hanging nodes (3) are first elastic nodes (31) connected to the transition mounting base (2) in a horizontal direction, and a horizontal stop structure (23) is fixed on the transition mounting base (2) between the first elastic nodes (31) in a horizontal direction.

3. The traction motor module according to claim 1, characterized in that, The transition mounting base (2) is also connected to a motor lateral vibration damping component (26), one end of which is used to connect to the frame (4).

4. A bogie, characterized in that, include: The traction motor module according to any one of claims 1 to 3; The frame (4) includes a crossbeam (42), and the elastic suspension node (3) is elastically suspended from the crossbeam (42).

5. The bogie according to claim 4, characterized in that, It also includes a first connecting seat (5) fixedly connected to the crossbeam (42), the first connecting seat (5) being connected to the elastic hanging node (3); The crossbeam (42) has an upper cover plate edge (4211) and a lower cover plate edge (4231) protruding from one of its longitudinal sides, and a crossbeam positioning groove (425) is provided between the upper cover plate edge (4211) and the lower cover plate edge (4231). The first connecting seat (5) includes a first connecting plate (51) and a second connecting plate (52) located below the first connecting plate (51). There is a slot (53) between the first connecting plate (51) and the second connecting plate (52). The edge (4211) of the upper cover plate of the crossbeam is longitudinally inserted into the slot (53), and the second connecting plate (52) is longitudinally inserted into the positioning groove (425) of the crossbeam.

6. The bogie according to claim 5, characterized in that, The top surface of the first connecting seat (5) is provided with a hanging groove (54) to support and connect the connecting shaft (33) of the elastic hanging node (3); The transition mounting base (2) is provided with a motor lateral vibration damping component (26) located below the first elastic node (31). The first connecting base (5) has a C-shaped clearance groove (55) on the side away from the crossbeam (42) in the longitudinal direction to avoid the motor lateral vibration damping component (26).

7. The bogie according to claim 4, characterized in that, It also includes a first connecting seat (5) fixedly connected to one longitudinal side of the crossbeam (42) and a second connecting seat (6) fixedly connected to the bottom surface of the crossbeam (42); On the same side of the longitudinal direction of the crossbeam (42), there are multiple first connecting seats (5) arranged in sequence along the transverse direction to form a first connecting group; there are multiple second connecting seats (6) arranged in sequence along the transverse direction to form a second connecting group; the second connecting group is located in the center of the transverse direction below the first connecting group.

8. The bogie according to any one of claims 4 to 7, characterized in that, It also includes a T-type traction device (7) for connecting the vehicle body underframe (8); The crossbeam (42) has a first crossbeam hole (426) that runs vertically through it, and the T-shaped traction device (7) is inserted into the first crossbeam hole (426). The T-shaped traction device (7) is connected to the wall of the first crossbeam hole (426) through the longitudinal rubber stack traction units (75) on both sides of its longitudinal direction, and is connected to the wall of the first crossbeam hole (426) through the transverse rubber stack stop units (74) on both sides of its transverse direction.

9. The bogie according to any one of claims 4 to 7, characterized in that, It also includes a T-type traction device (7) for connecting the vehicle body; The crossbeam (42) is provided with a first crossbeam hole (426) through it in the vertical direction. The T-shaped traction device (7) is inserted into the first crossbeam hole (426) and a vertical stop (73) is fixed at its bottom end. The bottom of the hole wall of the first crossbeam hole (426) is provided with a limiting plate (427) that protrudes into the first crossbeam hole (426) in the horizontal direction. The limiting plate (427) blocks the vertical stop (73) above it to limit the upper limit position of the vertical stop (73).

10. A vehicle, characterized in that, Includes the bogie as described in any one of claims 4 to 9.

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