A beam module and a built-in bogie

Abstract

The present application discloses a beam module and a built-in bogie, which relate to the field of rail vehicle technology. The beam module includes a first tube beam and a second tube beam. The two ends of the first tube beam are closed and arranged on the corresponding side beams. The second tube beam is arranged parallel to the first tube beam. The length of the second tube beam is greater than that of the first tube beam, and the two ends of the second tube beam extend to the outside of the corresponding side beam. Both ends of the second tube beam are provided with an integrated seat, and the integrated seat is provided with a center hole, a first mounting structure and a second mounting structure. The center hole is connected to the cavity of the second tube beam. The first mounting structure and the second mounting structure are arranged around the periphery of the center hole. The cavity of the second tube beam is used for the torsion bar body of the anti-roll torsion bar to pass through. The first mounting structure is used to install the torsion bar body of the anti-roll torsion bar, and the second mounting structure is used to install the height valve. The above-mentioned beam module solves the problems that the traditional beam structure is not compact enough, has a low degree of integration and is inconvenient to maintain.

Description

Technical Field

[0001] The present application relates to the technical field of rail vehicles, and in particular to a beam module and a built-in bogie. Background Art

[0002] At present, the bogie frame structure directly affects the running performance of rail vehicles. The bogie frame structure mainly includes external bogie and internal bogie.

[0003] External bogies offer advantages such as strong roll and roll resistance, but also have disadvantages such as heavy wheelset and frame mass, difficulty negotiating small-radius curves, and poor adaptability to track distortion. Compared to external bogies, internal bogies are lighter, effectively reducing the weight of the wheelset and frame, offering advantages such as light weight and strong curve negotiating capability.

[0004] In the related art, the main difference between an inner axle box suspension bogie and an outer axle box suspension bogie is that the axle box suspension device is moved from the outer side of the wheel to the inner side of the wheel, making the bogie frame an inner support mode. It can be seen that the inner bogie frame is supported on the inner side of the wheel, the axle length can be shortened, the mass of the wheelset under the primary spring is reduced, and the frame crossbeam is shortened accordingly, and its mass can also be reduced accordingly. Therefore, the inner bogie can reduce the mass of the bogie, improve the vehicle running quality and reduce the wheel-rail interaction force. However, the current inner bogie frame structure is complex and the structural design is not compact enough. The non-compact design will take up more space, limit the available space inside the vehicle, and affect the comfort of passengers and the carrying capacity of the vehicle. At the same time, the non-compact design will also increase the turning radius of the vehicle, making the vehicle less flexible when turning, affecting the handling. In addition, the complex structural design will also make maintenance and repair more difficult and expensive.

[0005] Therefore, it is necessary for those skilled in the art to provide a beam module with a compact structure and a high degree of integration and a built-in bogie having the beam module in a timely manner. Summary of the Invention

[0006] The purpose of this application is to provide a beam module and a built-in bogie with a compact structure and a high degree of integration, which solves the problems of traditional beam modules being not compact enough, having a low degree of integration and being inconvenient to maintain.

[0007] To achieve the above objectives, the present application provides a crossbeam module mounted on a pair of parallel side beams of an interior bogie, the crossbeam module comprising a first tubular beam and a second tubular beam, the first tubular beam having closed ends and mounted on the corresponding side beam, the second tubular beam being arranged parallel to the first tubular beam, the second tubular beam being longer than the first tubular beam, and the second tubular beam having both ends extending outwards of the corresponding side beam;

[0008] Both ends of the second tubular beam are provided with an integrated seat, and the integrated seat is provided with a center hole, a first mounting structure and a second mounting structure. The center hole is communicated with the cavity of the second tubular beam, and the first mounting structure and the second mounting structure are arranged around the outer circumference of the center hole. The cavity of the second tubular beam is used for the torsion bar body of the anti-roll torsion bar to pass through, the first mounting structure is used to install the torsion bar body of the anti-roll torsion bar, and the second mounting structure is used to install the height valve.

[0009] In some embodiments, the first mounting structure includes at least one group of first bosses, any of the first bosses extends along the radial direction of the integrated seat, and any of the first bosses is provided with a first mounting hole.

[0010] In some embodiments, the second mounting structure includes a second boss having a second mounting hole, and the second boss extends in a radial direction of the integrated seat.

[0011] In some embodiments, two groups of the first bosses are provided, the two groups of the first bosses and the second bosses are provided in the same plane, and the two groups of the first bosses are symmetrically distributed about a center line connecting the integrated seat and the second mounting hole.

[0012] In some embodiments, the integrated seat is further provided with a tube, and the tube is embedded in the end of the second tube beam, so that the integrated seat is installed on the second tube beam.

[0013] In some embodiments, the crossbeam module also includes a pair of longitudinal auxiliary beams, which are connected between the first tube beam and the second tube beam, so that the first tube beam and the second tube beam are connected, and the pair of longitudinal auxiliary beams are combined with the corresponding side beams to strengthen the connection between the first tube beam, the second tube beam and the pair of side beams.

[0014] In some embodiments, a pair of longitudinal auxiliary beams are provided with a bent plate at one end close to each other, and any of the bent plates is provided with a support platform;

[0015] The crossbeam module further includes a vertical stopper, which is mounted on the second tubular beam;

[0016] The vertical stop and the two support platforms form a three-point support structure, and the three-point support structure is used to contact and cooperate with the three support points on the center pin when hoisting the built-in bogie.

[0017] In some embodiments, any of the longitudinal auxiliary beams includes a transverse stop plate, and the bent plate is provided on a side of the transverse stop plate close to the first tubular beam;

[0018] The beam module also includes an elastic stop block, which is detachably connected to the inner side of the corresponding transverse stop plate. The elastic stop block is used to contact and abut against the center pin to limit the center pin in the transverse direction.

[0019] In some embodiments, any of the longitudinal auxiliary beams includes a support portion, and the support portion and the anti-snaking shock absorber mounting seat provided on the outer side of the corresponding side beam are respectively used to support the inner and outer parts of the corresponding wing-shaped structure in the middle of the side beam to bear the vertical force applied to the corresponding side beam by the vehicle body through the air spring.

[0020] The present application also provides a built-in bogie, comprising a pair of parallel side beams, and also comprising a crossbeam module as described in any one of the above items, wherein both ends of the first tube beam of the crossbeam module are closed and arranged on the corresponding side beams, and both ends of the second tube beam of the crossbeam module extend to the outside of the corresponding side beams.

[0021] Compared to the above-mentioned background technology, the crossbeam module provided in the embodiment of the present application is installed on a pair of parallel side beams of an internal bogie. The crossbeam module includes a first tubular beam and a second tubular beam. The first tubular beam is closed at both ends and is installed on the corresponding side beam. The second tubular beam is arranged parallel to the first tubular beam. The length of the second tubular beam is greater than that of the first tubular beam, and the two ends of the second tubular beam extend to the outside of the corresponding side beam. Furthermore, both ends of the second tubular beam are provided with an integrated seat, which is provided with a center hole, a first mounting structure, and a second mounting structure. The center hole is connected to the cavity of the second tubular beam. The first mounting structure and the second mounting structure are arranged around the periphery of the center hole. The cavity of the second tubular beam is used to pass through the torsion bar body of the anti-roll torsion bar. The first mounting structure is used to install the torsion bar body of the anti-roll torsion bar, and the second mounting structure is used to install the height valve.

[0022] It can be seen that the installation of the anti-roll torsion bar helps to control the rolling movement of the vehicle when driving on curves, improves ride comfort and vehicle stability, and the cavity design of the second tubular beam allows the torsion bar body of the anti-roll torsion bar to pass through it. The use of this internal space helps to reduce external interference while keeping the structure compact. The torsion bar body of the anti-roll torsion bar is an important component of the anti-roll torsion bar, which is installed on the first mounting structure and works with the torsion bar arm of the anti-roll torsion bar to provide the required lateral support force. The height valve is installed on the second mounting structure to adjust the height of the vehicle to ensure that the vehicle can maintain good contact and stability under different track conditions.

[0023] Compared with the conventional mounting base that requires separate height valves and anti-roll torsion bar mounting bases, the crossbeam module provided by this application has the following beneficial effects:

[0024] On the one hand, the cavity design of the second tubular beam allows the torsion bar body of the anti-roll torsion bar to pass through it. This arrangement fully utilizes the cavity structure of the tubular beam, so that the main part of the anti-roll torsion bar is located inside the cavity. While ensuring the normal function of the anti-roll torsion bar, it also protects the anti-roll torsion bar from being hit by rocks on the track and avoids the situation where the main part of the anti-roll torsion bar is located outside and easily interferes with other components.

[0025] On the other hand, the integrated seat is provided with an installation structure for installing the height valve and the torsion bar body of the anti-roll torsion bar. That is, the integrated seat designed at both ends of the second tube beam provides a centralized installation platform, which is used to integrate the installation of the torsion bar body and the height valve of the anti-roll torsion bar, making the installation of the torsion bar body and the height valve of the anti-roll torsion bar more convenient and precise, realizing functional integration and lightweight design.

[0026] In this way, the beam module structure provided by this application is compactly designed and does not need to occupy more space, which can ensure the available space inside the vehicle, improve passenger comfort and vehicle carrying capacity, and at the same time, the compact design will also increase the turning radius of the vehicle, making the vehicle flexible in turning and improving controllability. In addition, the compact and integrated structure also facilitates maintenance and repair work, thus solving the problems of traditional beam module structures being not compact enough, having a low degree of integration and being inconvenient to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0028] Figure 1 This is a structural diagram of the beam module in an embodiment of the present application;

[0029] Figure 2 for Figure 1 Schematic diagram of the structure of part A;

[0030] Figure 3 for Figure 1 Another angle diagram of the beam module shown;

[0031] Figure 4 This is a schematic structural diagram of the crossbeam module extending out of the side beam portion in an embodiment of the present application;

[0032] Figure 5 This is a schematic diagram of the assembly of the crossbeam module, the height valve, and the anti-roll torsion bar in an embodiment of the present application;

[0033] Figure 6This is a schematic diagram of the assembly of the beam module and the center pin in the embodiment of the present application;

[0034] Figure 7 for Figure 6 Schematic diagram from another angle;

[0035] Figure 8 for Figure 6 Schematic diagram of the structure of the center pin;

[0036] Figure 9 for Figure 8 A schematic structural diagram of the center pin at another angle is shown;

[0037] Figure 10 This is a schematic diagram of the connection between the gearbox hanger and the gearbox body in an embodiment of the present application;

[0038] Figure 11 This is a schematic structural diagram of the built-in bogie in an embodiment of the present application.

[0039] in:

[0040] 10- crossbeam module, 11- first tubular beam, 12- second tubular beam, 13- integrated seat, 131- center hole, 132- first mounting structure, 1321- first boss, 1322- first mounting hole, 133- second mounting structure, 1331- second boss, 1332- second mounting hole, 134- tube, 14- longitudinal auxiliary beam, 141- bent plate, 142- support platform, 143- transverse stop plate, 15- vertical stop, 16- elastic stop block, 17- anti-snaking shock absorber mounting seat, 18- gearbox hanger, 181- hanger body, 1811- connecting seat, 1812- narrowing structure, 1813- connecting groove, 182- anti-slip part, 1821- anti-slip hole, 19- motor mounting seat, 110- traction rod seat;

[0041] 20-side beam;

[0042] 30-anti-roll torsion bar, 31-torsion bar body, 32-torsion bar arm;

[0043] 40-height valve;

[0044] 50-center pin, 51-first support point, 52-second support point;

[0045] 60-Anti-snaking shock absorbers. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0047] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0048] It should be noted that the directional terms such as "upper end, lower end, left side, right side" described below are all defined based on the drawings in the specification.

[0049] Please refer to Figures 1 to 11 , Figure 1 This is a structural diagram of the beam module in an embodiment of the present application; Figure 2 for Figure 1 Schematic diagram of the structure of part A; Figure 3 for Figure 1 Another angle diagram of the beam module shown; Figure 4 This is a schematic structural diagram of the crossbeam module extending out of the side beam portion in an embodiment of the present application; Figure 5 This is a schematic diagram of the assembly of the crossbeam module, the height valve, and the anti-roll torsion bar in an embodiment of the present application; Figure 6 This is a schematic diagram of the assembly of the beam module and the center pin in the embodiment of the present application; Figure 7 for Figure 6 Schematic diagram from another angle; Figure 8 for Figure 6 Schematic diagram of the structure of the center pin; Figure 9 for Figure 8 A schematic structural diagram of the center pin at another angle is shown; Figure 10 This is a schematic diagram of the connection between the gearbox hanger and the gearbox body in an embodiment of the present application; Figure 11 This is a schematic structural diagram of the built-in bogie in an embodiment of the present application.

[0050] The crossbeam module 10 provided in the embodiment of the present application is installed on a pair of parallel side beams 20 of the built-in bogie. The crossbeam module 10 includes a first tube beam 11 and a second tube beam 12. The two ends of the first tube beam 11 are closed and arranged on the corresponding side beam 20. The second tube beam 12 is arranged parallel to the first tube beam 11. The length of the second tube beam 12 is greater than the length of the first tube beam 11, and the two ends of the second tube beam 12 extend to the outside of the corresponding side beam 20.

[0051] The first tubular beam 11 and the second tubular beam 12 are both circular tubular beams, wherein the first tubular beam 11 is shorter and closed at both ends (for example, both ends can be sealed with sealing plates to prevent rust from forming inside the tubular beam), and the second tubular beam 12 is longer. The portion of the second tubular beam 12 that is longer than the first tubular beam 11 passes through the corresponding side beams 20 respectively, and both ends of the passing portion are provided with an integrated seat 13 for installing a height valve 40 and an anti-roll torsion bar 30.

[0052] Both the first tubular beam 11 and the second tubular beam 12 are provided with motor mounting bases 19, wherein the lower portion of the motor mounting base 19 of the first tubular beam 11 is further provided with a traction rod base 110. Specifically, the motor mounting base 19 on the first tubular beam 11 is wider than the motor mounting base 19 on the second tubular beam 12, which not only meets the requirements for motor installation, but also the lower portion of the motor mounting base 19 on the first tubular beam 11 is further provided with a traction rod base 110, which is arranged on the centerline of the entire frame. This arrangement enables a single traction rod traction method.

[0053] Furthermore, an integrated seat 13 is provided at both ends of the second tubular beam 12, and the integrated seat 13 is provided with a center hole 131, a first mounting structure 132 and a second mounting structure 133. The center hole 131 is communicated with the cavity of the second tubular beam 12, and the first mounting structure 132 and the second mounting structure 133 are arranged around the outer periphery of the center hole 131. The cavity of the second tubular beam 12 is used for the torsion bar body 31 of the anti-roll torsion bar 30 to pass through. The first mounting structure 132 is used to install the torsion bar body 31 of the anti-roll torsion bar 30, and the second mounting structure 133 is used to install the height valve 40.

[0054] It can be seen that the installation of the anti-roll torsion bar 30 helps to control the rolling movement of the vehicle when driving on curves, improves ride comfort and vehicle stability, and the cavity design of the second tubular beam 12 allows the torsion bar body 31 of the anti-roll torsion bar 30 to pass through it. The use of such internal space helps to reduce external interference while keeping the structure compact. The torsion bar body 31 of the anti-roll torsion bar 30 is an important component of the anti-roll torsion bar 30, which is installed on the first mounting structure 132 and works together with the torsion bar arm 32 of the anti-roll torsion bar 30 to provide the required lateral support force. The height valve 40 is installed on the second mounting structure 133 to adjust the height of the vehicle to ensure that the vehicle can maintain good contact and stability under different track conditions.

[0055] Compared with the traditional method of requiring separate mounting seats for the height valve 40 and the anti-roll torsion bar 30, in the crossbeam module 10 provided in the present application, the cavity design of the second tube beam 12 allows the torsion bar body 31 of the anti-roll torsion bar 30 to pass through it, and the integrated seat 13 designed at both ends of the second tube beam 12 provides a centralized installation platform, which is used to integrate the torsion bar body 31 and the height valve 40 of the anti-roll torsion bar 30, making the installation of the torsion bar body 31 and the height valve 40 of the anti-roll torsion bar 30 more convenient and accurate.

[0056] It can be understood that the above-mentioned setting method fully utilizes the cavity structure of the tubular beam, so that the main part of the anti-roll torsion bar 30 is located inside the cavity, which ensures the normal function of the anti-roll torsion bar 30 while protecting the anti-roll torsion bar 30 from being hit by stones on the track, and avoids the situation where the main part of the anti-roll torsion bar 30 is easily interfered with other components when it is located outside; the integrated seat 13 is provided with an installation structure for installing the height valve 40 and the torsion bar body 31 of the anti-roll torsion bar 30, realizing functional integration and lightweight design.

[0057] In this way, the crossbeam module 10 provided in the present application has a compact structural design and does not need to occupy more space, which can ensure the available space inside the vehicle, improve the comfort of passengers and the carrying capacity of the vehicle. At the same time, the compact design will also increase the turning radius of the vehicle, making the vehicle flexible in turning and improving the controllability. In addition, the compact and integrated structure also facilitates maintenance and repair work, thereby solving the problems of the traditional crossbeam module 10 being not compact enough, having a low degree of integration and being inconvenient to maintain.

[0058] The torsion bar body 31 of the anti-roll torsion bar 30 can rotate in the cavity of the second tubular beam 12. For example, a circular sealing plate can be set inside the integrated seat 13, and the center hole 131 is set in the circular sealing plate. The circular sealing plate cooperates with the anti-roll torsion bar 30 so that the anti-roll torsion bar 30 can be rotatably passed through the cavity of the second tubular beam 12, and the cavity of the second tubular beam 12 is made into a closed inner cavity.

[0059] Of course, a bearing can also be set in the integrated seat 13, the inner ring of the bearing is connected to the rotating part of the anti-roll torsion bar 30, the outer ring of the bearing is supported on the inner wall of the integrated seat 13, and a rotating body is provided between the inner ring and the outer ring of the bearing. On the one hand, the setting of the bearing can realize the rotation of the anti-roll torsion bar 30 relative to the integrated seat 13, thereby ensuring the function of the anti-roll torsion bar 30 to suppress the rolling of the vehicle body. On the other hand, bearings are provided in the integrated seats 13 at both ends, which can ensure that the cavity of the second tube beam 12 is a closed inner cavity, thereby ensuring the closedness of the interior of the second tube beam 12.

[0060] In some embodiments, the first mounting structure 132 includes at least one group of first bosses 1321 , and any first boss 1321 extends along the radial direction of the integrated seat 13 . Any first boss 1321 is provided with a first mounting hole 1322 .

[0061] For example, the first mounting structure 132 can be configured to include two groups of first bosses 1321, and one group of first bosses 1321 includes two first bosses 1321, that is, the first mounting structure 132 includes a total of four first bosses 1321, and the four first bosses 1321 are symmetrically arranged in groups of two on the outer periphery of the center hole 131.

[0062] In some embodiments, the second mounting structure 133 includes a second boss 1331 having a second mounting hole 1332 , and the second boss 1331 extends in a radial direction of the integrated seat 13 .

[0063] The second boss 1331 has the same structure as the first bosses 1321 , and the width of any boss gradually decreases in a direction away from the center hole 131 . The second mounting hole 1332 and the first mounting holes 1322 are both circular holes.

[0064] Thus, five boss structures are provided on the periphery of the central hole 131 of the integrated seat 13 , one of which is used to assemble the height valve 40 , and the other four boss structures are used to assemble the anti-roll torsion bar 30 .

[0065] In some embodiments, two groups of first bosses 1321 are provided, the two groups of first bosses 1321 and second bosses 1331 are coplanar, and the two groups of first bosses 1321 are symmetrically distributed about the center line connecting the integration seat 13 and the second mounting hole 1332 .

[0066] The above settings usually have the following benefits:

[0067] Balance: The symmetrical distribution of the two groups of first bosses 1321 about the center line connecting the integrated seat 13 and the second mounting hole 1332 can provide better balance and reduce vibration or instability caused by uneven weight distribution.

[0068] Uniform stress distribution: The symmetrical design of the two groups of first bosses 1321 about the center line connecting the integrated seat 13 and the second mounting hole 1332 helps to evenly distribute stress on the structure, reduce local stress concentration, and thus improve overall durability and reliability.

[0069] Simplified manufacturing: Providing the integrated seat 13 with a symmetrical structure can simplify the manufacturing process. In addition, since the same components or molds can be reused, the production cost can be reduced.

[0070] Easy to install and maintain: Since the layout and function of the components are consistent, the symmetrical design of the two sets of first bosses 1321 about the center line connecting the integrated seat 13 and the second mounting hole 1332 can make the installation and maintenance process more intuitive and simple.

[0071] Improved Interchangeability: Symmetrical components have higher interchangeability, which means that if a part needs to be replaced, it is easier to find a replacement.

[0072] Reducing errors: During the assembly process, the symmetrical design of the two groups of first bosses 1321 about the connecting center line of the integrated seat 13 and the second mounting hole 1332 can reduce performance problems caused by assembly errors.

[0073] Optimizing space utilization: The symmetrical layout of the two groups of first bosses 1321 about the connecting center line of the integrated seat 13 and the second mounting hole 1332 can make more effective use of space, especially in the limited space of the bogie frame.

[0074] Enhanced structural stability: The symmetrical design of the two groups of first bosses 1321 about the connecting center line of the integrated seat 13 and the second mounting hole 1332 can also enhance the stability of the structure, especially when subjected to lateral or longitudinal loads.

[0075] Aesthetics: The symmetrical design of the two groups of first bosses 1321 about the center line connecting the integrated seat 13 and the second mounting hole 1332 is often more visually harmonious and meets the aesthetic standards of many people.

[0076] In some embodiments, the integrated seat 13 is further provided with a tube 134 , and the tube 134 is embedded in the end of the second tube beam 12 , so that the integrated seat 13 is installed on the second tube beam 12 .

[0077] Of course, the structure of the tube 134 can be adjusted according to the structure of the second tube beam 12. Since the second tube beam 12 in this embodiment is a circular tube beam, the tube 134 is correspondingly a circular tube 134. During assembly, the tube 134 is embedded in the end of the second tube beam 12, so that the integrated seat 13 can be installed at the end of the second tube beam 12.

[0078] In some embodiments, the crossbeam module 10 also includes a pair of longitudinal auxiliary beams 14, which are connected between the first tube beam 11 and the second tube beam 12, so that the first tube beam 11 and the second tube beam 12 are connected, and the pair of longitudinal auxiliary beams 14 are combined with the corresponding side beams 20 to strengthen the connection between the first tube beam 11, the second tube beam 12 and the pair of side beams 20.

[0079] In this embodiment, the longitudinal auxiliary beam 14 is a hollow steel plate combined welded structure. This structure, on the one hand, can serve to connect the two circular tubular beams. On the other hand, it can achieve a lightweight design through weight reduction design, which is beneficial to reducing the weight of the entire crossbeam module 10 and the entire bogie frame.

[0080] It should be emphasized that the longitudinal auxiliary beam 14 connects the two circular tubular beams together, and the force at the traction rod is transmitted from the first beam to the second tubular beam 12 through the longitudinal auxiliary beam 14, so that the two tubular beams evenly share the traction force and braking force. At the same time, the outer side of the longitudinal auxiliary beam 14 is combined with the side beam 20, which can strengthen the connection between the side beam 20 and the two tubular beams. This design shares the stress at the connection of the transverse side beam 20, making the structure more stable and reliable.

[0081] In some embodiments, in order to facilitate the overall lifting of the bogie frame, a pair of longitudinal auxiliary beams 14 are provided with a bent plate 141 at one end close to each other, and any bent plate 141 is provided with a support platform 142. Not only that, the crossbeam module 10 also includes a vertical stop 15, which is installed on the second tube beam 12.

[0082] In this way, the vertical stop 15 and the two supporting platforms 142 form a three-point support structure, which is used to contact and cooperate with the three supporting points on the center pin 50 when hoisting the built-in bogie.

[0083] It should be noted that the wing-shaped structure of the center pin 50 is provided with two first support points 51, and the two first support points 51 are respectively provided at the two ends of the wing-shaped structure of the center pin 50, and the center pin 50 is provided with a second support point 52 on the other side of the wing-shaped structure. When the vehicle is running normally, there is a preset gap between the second support point 52 on the center pin 50 and the vertical stop 15 on the second tubular beam 12, and the two first support points 51 on the center pin 50 respectively have a preset gap with the support platforms 142 on the two longitudinal auxiliary beams 14 bent plates 141. As the lifting proceeds, the gap between the second support point 52 on the center pin 50 and the vertical stop 15 on the second tubular beam 12, as well as the gap between the two first support points 51 on the center pin 50 and the support platforms 142 on the corresponding longitudinal auxiliary beams 14 bent plates 141, gradually decrease until they contact and offset each other. In this way, the bogie frame can be lifted together when lifting the car body (the bogie is connected to the car body through the anti-snaking shock absorber 60, anti-roll torsion bar 30, height valve 40, air spring, and center pin 50).

[0084] In this way, the two supporting platforms 142 on the beam module 10 and the vertical stop 15 together form a stable three-point support structure, which can achieve stable lifting of the bogie.

[0085] In some embodiments, to facilitate lateral positioning of the center pin 50, each longitudinal auxiliary beam 14 includes a lateral stop plate 143. A bent plate 141 is disposed on the side of the lateral stop plate 143 proximal to the first tubular beam 11. The spacing between the two lateral stop plates 143 defines the maximum lateral movement of the center pin 50. To this end, the crossbeam module 10 further includes an elastic stop block 16 detachably connected to the inner side of the corresponding lateral stop plate 143. The elastic stop block 16 is configured to contact and abut the center pin 50 to limit the lateral position of the center pin 50.

[0086] In this embodiment, the elastic stop block 16 can be a rubber block. In this way, a transverse stop plate 143 is provided on the inner side of the longitudinal auxiliary beam 14, and a rubber block is provided on the inner side of the transverse stop plate 143. The rubber block can prevent the central traction structure from colliding with the frame left and right. The transverse stop plate 143 and the rubber block form an inverted structure, so that even if the vulcanization bonding fails, the rubber can still be prevented from falling off.

[0087] Furthermore, the longitudinal auxiliary beam 14 supports the inner portion of the wing-like structure in the middle of the side sill 20, while the outer portion of the wing-like structure in the middle of the side sill 20 is supported by the anti-snaking damper mounting bracket 17. Together, the longitudinal auxiliary beam 14 and the anti-snaking damper mounting bracket support the wing-like structure in the middle of the side sill 20, providing sufficient vertical support to meet the installation requirements of the air spring and withstand the vertical forces applied to the frame by the vehicle body through the air spring.

[0088] In some embodiments, any longitudinal auxiliary beam 14 includes a supporting portion, and the supporting portion and the anti-snaking shock absorber mounting seat 17 arranged on the outside of the corresponding side beam 20 are respectively used to support the inner and outer parts of the middle wing-shaped structure of the corresponding side beam 20 to bear the vertical force applied to the corresponding side beam 20 by the vehicle body through the air spring.

[0089] That is, the two circular tubular beams are connected by the longitudinal auxiliary beam 14 , which serves to strengthen the connection between the side beam 20 and the two tubular beams, and to support the wing-shaped structure of the side beam 20 .

[0090] In some embodiments, both circular tubular beams are provided with integrally forged gearbox hangers 18. In the bogie frame of rail transit vehicles, the integrally forged gearbox hanger 18 can ensure the stable installation of key components such as the gearbox and motor, thereby improving the safety and reliability of vehicle operation.

[0091] In this embodiment, the gearbox hanger 18 includes a hanger body 181 and an anti-dropping member 182 .

[0092] The suspension seat body 181 includes a connecting seat 1811 , a narrowing structure 1812 and a connecting groove 1813 .

[0093] Connecting base 1811 is used to connect to the gearbox body. The gearbox body's suspension rod is connected to the connecting base 1811 via a pair of first bolts. Connecting base 1811 is U-shaped and includes a pair of connecting arms. A U-shaped groove is formed between the pair of connecting arms. The U-shaped groove is used to pass the gearbox body's suspension rod through it.

[0094] In order to facilitate the connection between the connecting seat 1811 and the first bolt, a pair of connecting arms are each provided with a first connecting hole, which extends in the vertical direction; the first bolt passes through the hanger of the gear box body and is threadedly connected to the corresponding first connecting hole, so that the hanger of the gear box body is fastened to the connecting seat 1811.

[0095] It can be understood that the lower end of the gearbox body's hanger is connected to the gearbox body, and the upper end of the gearbox body's hanger is installed on the connecting seat 1811 of the hanger body 181 through a first bolt. The upper end of the gearbox body's hanger extends two connecting ends along both sides, and the two connecting ends are respectively overlapped on the two connecting arms, so that the gearbox body's hanger is suspended on the connecting seat 1811. During installation, the two connecting ends of the upper end of the gearbox body's hanger are respectively overlapped on the two connecting arms, and the first bolt is used to penetrate the connection between the connecting seat 1811 and the hanger of the gearbox body, thereby achieving the purpose of connecting the above-mentioned connecting seat 1811 and the hanger of the gearbox body.

[0096] The narrowing structure 1812 is provided between the connecting groove 1813 and the connecting seat 1811. The narrowing structure 1812 is used to reduce the weight of the hanger body 181 and also to provide operating space for welding the hanger body 181 to the crossbeam module 10 of the bogie frame. It can be understood that the narrowing structure 1812 is similar to the belly of an I-beam structure, and the structure where the connecting groove 1813 is located at one end and the connecting seat 1811 at the other end are similar to the wings of the I-beam structure. The provision of the narrowing structure 1812 in the middle of the gearbox hanger 18 not only helps to reduce the weight while ensuring the structural strength of the hanger body 181, but also provides operating space for welding the hanger body 181 to the crossbeam module 10 of the bogie frame, facilitating the smooth progress of the welding operation.

[0097] To facilitate connection between the hanger body 181 and the crossbeam module 10, a connecting groove 1813 is provided at one end of the hanger body 181, facing away from the connecting seat 1811. The inner wall of the connecting groove 1813 is intended to be welded to the crossbeam module 10 of the bogie frame. The structure and dimensions of the connecting groove 1813 are designed to match the structure and dimensions of the crossbeam body of the crossbeam module 10. For example, the connecting groove 1813 can be an arcuate groove.

[0098] The anti-dropping member 182 is provided on the connecting seat 1811 and has an anti-dropping hole 1821 for the extension structure of the gearbox body to pass through to prevent the gearbox body from being separated from the connecting seat 1811. The anti-dropping member 182 is connected to the connecting seat 1811 by two second bolts.

[0099] In order to facilitate the connection between the connecting seat 1811 and the second bolt, a second connecting hole is also provided on a pair of connecting arms, and the second connecting hole extends horizontally and perpendicular to the axis of the second tube beam 12; the second bolt passes through the anti-slip part 182 and is threadedly connected to the corresponding second connecting hole, so that the anti-slip part 182 is fastened to the connecting seat 1811.

[0100] Specifically, the anti-slip hole 1821 on the anti-slip member 182 can be a square hole or a circular hole. After the suspension rod of the gearbox body is installed on the connecting seat 1811, the extension structure of the gearbox body is passed through the anti-slip hole 1821, and the extension structure of the gearbox body is suspended in the anti-slip hole 1821, that is, the extension structure of the gearbox body and the inner walls of the anti-slip hole 1821 all have a preset gap. The extension structure of the gearbox body can be arranged along the extension direction of the second connecting hole, and the extension structure of the gearbox body is perpendicular to the suspension rod of the gearbox body. In this way, after the suspension rod of the gearbox body is damaged or the first bolt fails, the anti-slip member 182 can suppress the upside-down flipping of the gearbox body and prevent the gearbox body from detaching from the gearbox hanger 18, thereby improving the stability and reliability of the connection between the gearbox body and the gearbox hanger 18.

[0101] It is understood that the design of the anti-slip member 182 can ensure the safety and stability of the gearbox body in the bogie structure. The specific functions brought by the anti-slip member 182 include:

[0102] Inhibiting flipping: The anti-slip member 182 can prevent the gearbox body from flipping up and down when subjected to vertical or lateral forces. Such flipping may cause damage to the internal parts of the gearbox body and may even cause more serious mechanical failure.

[0103] Preventing falling off: Even if the hanger rod or the first connecting assembly of the gearbox body fails, the anti-falling member 182 can ensure that the gearbox body will not fall off from the hanger, which is crucial for maintaining the safe operation of the vehicle.

[0104] Providing backup support: The anti-dropout member 182 provides backup support when the primary support structure (first connecting component) fails, ensuring that the gearbox body remains in place and continues to perform its function.

[0105] Increased redundancy: The design of the anti-dropout member 182 increases the redundancy of the entire system. Even if a problem occurs at the main connection point, the anti-dropout member 182 can still maintain the integrity of the structure.

[0106] Improved reliability: By designing the anti-dropping member 182, the reliability of the gearbox hanger 18 system is improved, and unexpected downtime and maintenance costs caused by connection failure are reduced.

[0107] The gearbox hanger 18 provided in this application, when connected to the gearbox body, connects the gearbox body's hanger rod and the connecting seat 1811 via a first bolt. At the same time, an anti-slip member 182 is added, and the anti-slip member 182 and the connecting seat 1811 are connected via a second bolt. The anti-slip member 182 is provided with an anti-slip hole 1821 that cooperates with the protruding structure of the gearbox body. In other words, while the first bolt connects the gearbox body's hanger rod and the connecting seat 1811, the second bolt is used to connect the anti-slip member 182 and the connecting seat 1811. The anti-slip member 182 plays a role in preventing slipping, ensuring the stability and reliability of the connection between the gearbox body and the gearbox hanger 18.

[0108] It should be noted that the second bolt for installing the gearbox anti-slip structure (anti-slip part 182) and the first bolt for installing the hanger rod of the gearbox body are set together on a seat, with a compact structure, reasonable spatial arrangement, and no interference.

[0109] With such an arrangement, compared with the traditional gearbox hanger 18, the gearbox hanger 18 provided in the present application has an improved structure for connection with the gearbox body. After the hanger of the gearbox body is damaged or the first bolt fails, it can suppress the up and down flipping of the gearbox body and prevent the gearbox body from separating from the gearbox hanger 18, thereby improving the stability and reliability of the connection between the gearbox body and the gearbox hanger 18, so that the structure on the gearbox hanger 18 for connecting with the gearbox body meets the requirements of normal service life in actual use of rail vehicles, and solves the problem that the gearbox body is easily separated from the gearbox hanger 18.

[0110] In addition, a boss is provided at the end of the gear box hanger 18, and a groove is provided on the gear box anti-slip structure (anti-slip part 182). The boss and the corresponding groove are matched with a small gap. When the anti-slip part 182 receives a large impact force, it can prevent the second bolt from being subjected to shear force, thereby avoiding failure of the second bolt.

[0111] It should be noted that the design of the gearbox hanger 18 generally requires consideration of multiple factors, including load-bearing capacity, stability, ease of maintenance, and safety. Providing a boss at the end of the gearbox hanger 18 and a groove on the gearbox anti-slip structure (anti-slip member 182) provides the following benefits:

[0112] 1. The design of the boss at the end of the gearbox hanger 18 can provide additional support points, increase the contact area between the hanger and the gearbox body, and thus improve the stability and load-bearing capacity of the structure.

[0113] 2. A groove is provided on the anti-slip part 182. In contrast to further adding an anti-slip structure to the gearbox body on the basis of the anti-slip part 182, the groove can cooperate with the boss at the end of the hanger to form a mechanical locking mechanism to prevent the gearbox body from being displaced or falling off when subjected to impact or vibration.

[0114] 3. By precisely controlling the gap between the boss and the groove, a tight fit can be achieved while maintaining a certain flexibility to accommodate temperature changes or slight mechanical deformation.

[0115] 4. When subjected to a large impact, if the connection between the gearbox body and the gearbox hanger 18 relies solely on the second bolt, the second bolt may be subjected to excessive shear force, causing it to fail or break. The design of the boss and groove allows the impact force to be transmitted through the structural component itself, rather than relying solely on the second bolt, thus protecting the second bolt from damage.

[0116] 5. This design can effectively prevent the gearbox body from falling off due to failure of the second bolt, thereby improving the safety of the entire system.

[0117] 6. Reasonable fitting clearance also facilitates routine inspection and maintenance work, and the status of the second bolt and the anti-slip member 182 can be checked without disassembling the entire system.

[0118] 7. This design can adapt to different working environments and conditions, including temperature changes, vibrations, shocks, etc., to ensure the stable operation of the gearbox.

[0119] This application provides an internal bogie connected to the vehicle body via an anti-snaking damper 60, an anti-roll torsion bar 30, a leveling valve 40, an air spring, and a center pin 50. The bogie includes a pair of parallel side beams 20 and a crossbeam module 10 as described in the above embodiments. The first tubular beam 11 of the crossbeam module 10 has closed ends and is mounted on the corresponding side beam 20, while the second tubular beam 12 of the crossbeam module 10 has two ends extending outward from the corresponding side beam 20. Other components of the internal bogie can be referenced to related art and will not be elaborated upon herein.

[0120] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0121] The above is a detailed introduction to the crossbeam module and built-in bogie provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the solution and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the present application.

Claims

1. A crossbeam module, mounted on a pair of parallel side beams of an interior bogie, characterized in that: The crossbeam module includes a first tubular beam and a second tubular beam, wherein both ends of the first tubular beam are closed and provided on the corresponding side beam, and the second tubular beam is provided in parallel with the first tubular beam, the length of the second tubular beam is greater than the length of the first tubular beam, and both ends of the second tubular beam extend outward from the corresponding side beam; Both ends of the second tubular beam are provided with an integrated seat, and the integrated seat is provided with a center hole, a first mounting structure, and a second mounting structure. The center hole is connected to the cavity of the second tubular beam, and the first mounting structure and the second mounting structure are arranged around the outer circumference of the center hole. The cavity of the second tubular beam is used for the torsion bar body of the anti-roll torsion bar to pass through. The first mounting structure is used to install the torsion bar body of the anti-roll torsion bar, and the second mounting structure is used to install the height valve. The first mounting structure includes at least one set of first bosses, any one of the first bosses extending in the radial direction of the integrated seat, any one of the first bosses having a first mounting hole; The second mounting structure includes a second boss having a second mounting hole, the second boss extending in a radial direction of the integrated seat; Two groups of the first bosses are provided, the two groups of the first bosses and the second bosses are provided in the same plane, and the two groups of the first bosses are symmetrically distributed about a center line connecting the integrated seat and the second mounting hole.

2. The beam module according to claim 1, characterized in that: The integrated seat is further provided with a tube, and the tube is embedded in the end of the second tube beam, so that the integrated seat is installed on the second tube beam.

3. The beam module according to any one of claims 1 to 2, characterized in that: The crossbeam module also includes a pair of longitudinal auxiliary beams, which are connected between the first tubular beam and the second tubular beam, so that the first tubular beam and the second tubular beam are connected, and the pair of longitudinal auxiliary beams are combined with the corresponding side beams to strengthen the connection between the first tubular beam, the second tubular beam and the pair of side beams.

4. The beam module according to claim 3, characterized in that: A pair of longitudinal auxiliary beams are provided with a bent plate at one end close to each other, and any of the bent plates is provided with a supporting platform; The crossbeam module further includes a vertical stopper, which is mounted on the second tubular beam; The vertical stop and the two support platforms form a three-point support structure, and the three-point support structure is used to contact and cooperate with the three support points on the center pin when hoisting the built-in bogie.

5. The beam module according to claim 4, characterized in that: Any of the longitudinal auxiliary beams includes a transverse stop plate, and the bent plate is provided on a side of the transverse stop plate close to the first tubular beam; The beam module also includes an elastic stop block, which is detachably connected to the inner side of the corresponding transverse stop plate. The elastic stop block is used to contact and abut against the center pin to limit the center pin in the transverse direction.

6. The beam module according to claim 3, characterized in that: Any of the longitudinal auxiliary beams includes a support portion, and the support portion and the anti-snaking shock absorber mounting seat arranged on the outer side of the corresponding side beam are respectively used to support the inner and outer parts of the corresponding wing-shaped structure in the middle of the side beam to bear the vertical force applied to the corresponding side beam by the vehicle body through the air spring.

7. A built-in bogie comprising a pair of parallel side beams, characterized in that: It also includes the beam module according to any one of claims 1 to 6, wherein both ends of the first tube beam of the beam module are closed and arranged on the corresponding side beams, and both ends of the second tube beam of the beam module extend to the outside of the corresponding side beams.

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