Bogie and rail vehicle

Abstract

Embodiments of the present application provide a bogie and a rail vehicle. The bogie comprises: two side beams arranged in parallel, wherein the side beams extend in a longitudinal direction; two cross beams arranged in parallel, wherein the cross beams are located between the two side beams in a transverse direction, and a traction device installation space is formed between the two cross beams. The side beams are box side beams; side beam internal rib plates are provided in a hollow cavity of each box side beam; the side beam internal rib plates are longitudinally arranged. The side beams are box side beams, side beam internal rib plates are provided in the hollow cavities of the box side beams to reinforce the box side beams, and the box structure is used to increase the cross-sectional area, and improve the strength and bending resistance of the components. Moreover, the side beam internal rib plates are longitudinally arranged on the basis of the stress direction of the frame, the reinforcing function of the rib plates is exerted, the stress transfer of the side beams is smoother, and the stress on the side beams is uniformly distributed. The strength and rigidity of the overall structure of the frame are greatly improved, and the overall fatigue resistance of the frame is greatly improved, thereby meeting safe operation requirements of high-speed and heavy axle-load rail vehicles.

Description

Bogie and rail vehicle Technical Field

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

[0002] The bogie frame is the main load-bearing component of the train. The frame strength, torsional resistance and bending resistance are all key performance indicators. The load-bearing capacity of the existing bogie frame is basically based on methods such as increasing the frame cross-sectional area and increasing the thickness of the steel plate. Correspondingly, the frame weight increases, the appearance becomes larger, and it appears more bulky.

[0003] The bogie is the running gear of a rail vehicle, and the frame is the main structural part of the bogie. Mounting seats for various devices such as the primary suspension, secondary suspension, and traction rods are welded on the frame. The more functions the bogie has, the more complex the frame is, and the more welds there are on the frame. As a result, the manufacturing cost of the frame is higher and the reliability is worse.

[0004] The existing bogie frame generally meets the axle load of 17t, which cannot meet the increasingly increasing transportation weight requirements.

[0005] Summary of the Invention

[0006] In the embodiments of the present application, a bogie and a rail vehicle are provided to solve the problem that the load-bearing capacity of the existing bogie frame depends on increasing the frame weight, resulting in a complex frame structure, heavy weight and insufficient load capacity.

[0007] In order to achieve the above objectives, this application provides the following technical solutions:

[0008] A bogie comprising:

[0009] two side beams arranged in parallel, the side beams extending in the longitudinal direction;

[0010] Two parallel cross beams, each of the cross beams is located between the two side beams in the transverse direction, and a traction device installation space is formed between the two cross beams;

[0011] The side beam is a box-type side beam, and a side beam inner rib is provided in the hollow cavity of the box-type side beam. The side beam inner rib is arranged in the longitudinal direction.

[0012] Optionally, the side beam includes:

[0013] Side beam outer panels and side beam inner panels, the side beam outer panels and the side beam inner panels are arranged side by side in the transverse direction;

[0014] The side beam upper cover plate and the side beam lower cover plate, the longitudinal sides of the side beam upper cover plate are respectively fixed to the top ends of the side beam outer plate and the side beam inner plate; the longitudinal sides of the side beam lower cover plate are respectively fixed to the bottom ends of the side beam outer plate and the side beam inner plate; the side beam outer plate, the side beam inner plate, the side beam upper cover plate and the side beam lower cover plate are connected to form a hollow box structure;

[0015] The side beam inner ribs are respectively fixed to the side beam upper cover plate and the side beam lower cover plate.

[0016] Optionally, there are two groups of side beam inner ribs, and the two groups of side beam inner ribs are respectively located near one end of the side beam outer vertical plate and one end of the side beam inner vertical plate in the transverse direction.

[0017] Optionally, the crossbeam is a box-type crossbeam, and a plurality of crossbeam inner ribs are provided in the hollow cavity of the box-type crossbeam, and the crossbeam inner ribs are arranged in the transverse direction.

[0018] Optionally, the crossbeam includes:

[0019] The crossbeam outer plate and the crossbeam inner plate are arranged side by side in the longitudinal direction, and the crossbeam inner plate is close to the side of the transverse centerline of the bogie;

[0020] The crossbeam upper cover plate and the crossbeam lower cover plate, the lateral sides of the crossbeam upper cover plate are respectively fixed to the top ends of the crossbeam outer plate and the crossbeam inner plate; the lateral sides of the crossbeam lower cover plate are respectively fixed to the bottom ends of the crossbeam outer plate and the crossbeam inner plate; the crossbeam outer plate, the crossbeam inner plate, the crossbeam upper cover plate and the crossbeam lower cover plate form a hollow box structure.

[0021] Optionally, the inner rib of the beam is circumferentially connected to the outer vertical plate of the beam, the inner vertical plate of the beam, the upper cover plate of the beam and the lower cover plate of the beam respectively; the inner rib of the beam has a rib weight-reducing opening, and the rib weight-reducing opening is arranged toward the inner vertical plate of the beam.

[0022] Optionally, a notch is provided at a portion of the inner rib of the beam opposite to the top corner of the beam.

[0023] Optionally, the hollow cavity of the cross beam is connected to the hollow cavity of the side beam; at least one group of cross beam inner ribs is located at the end of the cross beam and extends into the hollow cavity of the side beam, and the cross beam inner ribs are connected to the side beam inner ribs;

[0024] The crossbeam inner rib plate group includes:

[0025] Two first crossbeam inner ribs disposed opposite to each other in the longitudinal direction, wherein one of the first crossbeam inner ribs extends in the transverse direction and is fixed to the side beam inner ribs;

[0026] The second crossbeam inner rib extends longitudinally and is fixed between the two first crossbeam inner ribs.

[0027] Optionally, it also includes:

[0028] The traction rod mounting seats are located on the side walls of the cross beam that are away from each other and are staggered. Part of the traction rod mounting seats is buried in the hollow cavity of the cross beam.

[0029] Optionally, the outer vertical plate of the crossbeam and the inner vertical plate of the crossbeam are respectively provided with a traction rod mounting seat hole, and the traction rod mounting seat is installed in each of the traction rod mounting seat holes, and the two ends along the longitudinal direction are respectively protruded from the outer vertical plate of the crossbeam and the inner vertical plate of the crossbeam.

[0030] Optionally, it also includes:

[0031] The brake caliper mounting seats are symmetrically arranged at both ends of the side beam along the transverse center line of the bogie, and a portion of the brake caliper mounting seats is buried in the hollow cavity of the side beam.

[0032] Optionally, the side beam outer plate, the side beam inner plate, and the side beam inner rib plate are respectively provided with brake caliper mounting seat holes, and the brake caliper mounting seat is installed in the brake caliper mounting seat hole, and its two ends along the horizontal direction protrude from the side beam outer plate and the side beam inner plate and extend outward.

[0033] Optionally, it also includes:

[0034] An anti-snaking shock absorber mounting seat is symmetrically arranged at the bottom of the side beam outer plate along the longitudinal center line, and is used to install the secondary lateral shock absorber and the anti-snaking shock absorber;

[0035] An anti-roll torsion bar mounting seat is symmetrically arranged at the bottom of the side beam outer plate along the longitudinal center line and is used for mounting the anti-roll torsion bar;

[0036] A series of vertical shock absorber mounting seats, located at both longitudinal ends of the side beam and integrated into the lower cover plate of the side beam, for mounting a series of vertical shock absorbers;

[0037] A secondary vertical shock absorber mounting seat is symmetrically arranged at the bottom of the side beam outer plate along the longitudinal center line, and is used to mount the secondary vertical shock absorber;

[0038] The turning arm positioning seat is symmetrically arranged below the two ends of the side beam lower cover plate along the transverse center line of the bogie.

[0039] Optionally, it also includes:

[0040] Gear box mounting seats are respectively located on the two crossbeam outer plates and are staggered, and the gear box mounting seats are used to install and fix the gear box;

[0041] Motor mounting seats, respectively located on the two crossbeam outer plates and staggered, for mounting and fixing the traction motor;

[0042] Transverse stop mounting seats, located at both ends of the transverse centerline of the bogie and within the traction device mounting space, for mounting transverse stops;

[0043] The secondary lateral shock absorber mounting seats are respectively located on the two crossbeam upper cover plates and are staggered, and are used for mounting the secondary lateral shock absorbers.

[0044] The bogie provided in the embodiment of the present application includes two parallel side beams, which extend in the longitudinal direction; two parallel cross beams, each cross beam is located laterally between the two side beams, and a traction device installation space is formed between the two cross beams; the side beams are box-type side beams, and side beam inner ribs are provided in the hollow cavity of the box-type side beams, and the side beam inner ribs are arranged in the longitudinal direction.

[0045] Compared with the prior art, the bogie and rail vehicle provided in the embodiments of the present application have the following technical effects:

[0046] The side beams are configured as box-type side beams, and inner ribs are provided in the hollow cavity of the box-type side beams to reinforce them. The box-type structure is used to increase the cross-sectional area, thereby improving the strength and bending resistance of the components. At the same time, the inner ribs are provided longitudinally according to the force direction of the frame, thereby playing a reinforcing role. The stress transfer of the side beams is smoother, and the stress on the side beams is evenly distributed. The overall structure of this application is optimized, reducing and avoiding the occurrence of large stress areas. The strength and rigidity of the overall structure of the frame are greatly improved, and the overall fatigue resistance of the frame is greatly improved, so that the stress level of the overall frame is controlled within the range allowed by the strength, meeting the safe operation requirements of high-speed and large-axle-weight rail vehicles.

[0047] In order to achieve the above-mentioned second purpose, the present application also provides a rail vehicle, which includes a car body and any one of the above-mentioned bogies. Since the above-mentioned bogies have the above-mentioned technical effects, the rail vehicle with the bogies should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0049] FIG1 is a schematic diagram of the front structure of a bogie provided in an embodiment of the present application;

[0050] FIG2 is a schematic cross-sectional view of a side beam according to an embodiment of the present application;

[0051] FIG3 is a schematic structural diagram of a beam provided in an embodiment of the present application;

[0052] FIG4 is a schematic diagram of the cross-sectional structure of the beam provided in an embodiment of the present application.

[0053] The following are marked in the accompanying drawings:

[0054] Bogie 10;

[0055] Side beam 11, cross beam 12, gearbox mounting seat 13, motor mounting seat 14, brake caliper mounting seat 15, traction rod mounting seat 16, lateral stop mounting seat 17, anti-snake shock absorber mounting seat 18, anti-roll torsion bar mounting seat 19, secondary lateral shock absorber mounting seat 110, primary vertical shock absorber mounting seat 111, secondary vertical shock absorber mounting seat 112, swing arm positioning seat 113;

[0056] Side beam outer plate 1101, side beam inner plate 1102, side beam inner rib plate 1103;

[0057] Crossbeam outer plate 121, crossbeam inner plate 122, crossbeam upper cover plate 123, crossbeam lower cover plate 124, crossbeam inner rib plate 125;

[0058] The second cross beam inner rib 126 and the first cross beam inner rib 127 . DETAILED DESCRIPTION

[0059] In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.

[0060] Please refer to Figures 1-4, Figure 1 is a main structural schematic diagram of a bogie 10 provided in an embodiment of the present application; Figure 2 is a cross-sectional structural schematic diagram of the side beam 11 provided in an embodiment of the present application; Figure 3 is a structural schematic diagram of the cross beam 12 provided in an embodiment of the present application; Figure 4 is a cross-sectional structural schematic diagram of the cross beam 12 provided in an embodiment of the present application.

[0061] In a specific embodiment, the bogie 10 provided in the present application includes two parallel side beams 11 and two parallel cross beams 12; the side beams 11 extend longitudinally; each cross beam 12 is transversely located between the two side beams 11, and a traction device installation space is formed between the two cross beams 12; the side beams 11 are box-shaped side beams 11, and a side beam inner rib 1103 is provided in the hollow cavity of the box-shaped side beam 11, and the side beam inner rib 1103 is longitudinally arranged. It is understood that the longitudinal direction described here and below refers to the length direction of the bogie 10, the transverse direction refers to the width direction of the bogie 10, the longitudinal centerline is located at the center of the bogie 10 along the transverse direction, dividing the bogie 10 into two parts; and the transverse centerline is located at the center of the bogie 10 along the longitudinal direction, dividing the bogie 10 into two parts.

[0062] Two side beams 11 are arranged parallel to each other at the transverse ends of the bogie 10. Two cross beams 12 are placed transversely between the two side beams 11 and fixedly connected, specifically connected to the middle protrusions of the two side beams 11 and fixed by butt welding. The two side beams 11 and the two cross beams 12 form an H-shaped structure to optimize the overall structure, reduce and avoid the occurrence of large stress areas, improve the overall structural strength and rigidity of the frame, improve the overall fatigue resistance of the frame, and keep the stress level of the frame within the allowable strength range to meet the safe operation requirements of high-speed, high-axle-weight rail vehicles. The two cross beams 12 are spaced a certain distance apart in the longitudinal direction to form a space for the traction device to be installed. Among them, the cross beams 12 and the side beams 11 are both box-type structures, specifically using a box-type structure made of high-strength, corrosion-resistant steel plates. The structure has equal rigidity, equal strength, equal stress, and a streamlined design. It has a novel structure, a simple manufacturing process, and a high cost-effectiveness. The mounting base largely adopts forging structures with the same strength as steel plate materials. The forgings have the characteristics of simple structure and excellent performance, and meet the use requirements in terms of structure and strength.

[0063] Among them, the side beam 11 is a box-type side beam 11, which includes a side beam outer plate 1101, a side beam inner plate 1102, an upper cover plate of the side beam 11 and a lower cover plate of the side beam 11; the side beam outer plate 1101 and the side beam inner plate 1102 are arranged side by side in the horizontal direction and perpendicular to the horizontal plane direction; the side beam upper cover plate 11 and the side beam lower cover plate 11 are arranged in the horizontal direction, and the longitudinal sides of the side beam upper cover plate are respectively fixed to the top ends of the side beam outer plate 1101 and the side beam inner plate 1102; the longitudinal sides of the side beam lower cover plate are respectively fixed to the bottom ends of the side beam outer plate 1101 and the side beam inner plate 1102, and the side beam outer plate 1101, the side beam inner plate 1102, the side beam upper cover plate 11 and the side beam lower cover plate 11 are connected to form a hollow box structure.

[0064] Specifically, a side beam inner rib 1103 is provided in the hollow cavity of the box-type side beam 11. The side beam inner rib 1103 is provided longitudinally and is welded and fixed to the upper cover plate and the lower cover plate of the side beam 11 respectively. According to the stress conditions of the frame, the side beam 11 mainly bears the longitudinal bending moment. The internal ribs of the side beam 11 of the present frame are arranged along the stress direction of the side beam 11, coincident with and parallel to the stress line, and give full play to the reinforcing effect of the ribs, making the stress transmission on the side beam 11 smoother and achieving uniform stress distribution on the side beam 11. Specifically, there are two groups of side beam inner ribs 1103. One group of side beam inner ribs 1103 is located transversely near one end of the side beam outer plate 1101, and the other group of side beam inner ribs 1103 is located transversely near one end of the side beam inner plate 1102. In this way, the side beam inner ribs 1103 are arranged along the stress direction of the side beam 11, thereby improving the reinforcing effect of the ribs.

[0065] In other embodiments, the crossbeam 12 is a box-shaped crossbeam 12, and a plurality of crossbeam inner ribs 125 are arranged in the transverse hollow cavity of the box-shaped crossbeam, and each crossbeam inner rib 125 is arranged in the transverse direction to enhance the strength and rigidity of the crossbeam 12; similarly, the crossbeam 12 includes a crossbeam outer plate 121, a crossbeam inner plate 122, a crossbeam upper cover plate 123 and a crossbeam lower cover plate 124, and the crossbeam outer plate 121 and the crossbeam inner plate 122 are arranged side by side in the longitudinal direction and perpendicular to the water level. plane; the inner vertical plate 122 of the crossbeam is close to the side of the transverse centerline of the bogie 10, and the transverse sides of the crossbeam upper cover plate 123 are respectively fixed to the top ends of the outer vertical plate 121 and the inner vertical plate 122 of the crossbeam; the transverse sides of the transverse lower cover plate are respectively fixed to the bottom ends of the outer vertical plate 121 and the inner vertical plate 122 of the crossbeam; the outer vertical plate 121 of the crossbeam, the transverse inner vertical plate, the upper cover plate 123 of the crossbeam and the transverse lower cover plate form a hollow box structure, which is preferably fixed by welding.

[0066] In this embodiment, the inner crossbeam rib 125 is circumferentially connected to the outer crossbeam plate 121, the inner crossbeam plate 122, the upper crossbeam cover plate 123, and the lower crossbeam cover plate 124. The inner crossbeam rib 125 is preferably a rectangular plate. The inner crossbeam rib 125 has a rib plate weight-reducing opening, which is arranged toward the inner crossbeam plate 122, that is, toward the direction of less stress. It mainly strengthens the outer crossbeam plate 121, the upper crossbeam cover plate 123, and the lower crossbeam cover plate 124 to reduce weight while ensuring the load-bearing capacity of the crossbeam 12 without increasing the cross-sectional area or the plate thickness. It is understandable that the inner crossbeam rib 125 is provided with a notch at the portion opposite the top corner of the crossbeam 12 to reduce stress concentration at the welded joint.

[0067] It can be understood that in order to further improve the strength and rigidity of the bogie 10, the hollow cavity of the crossbeam 12 is connected to the hollow cavity of the side beam 11; at least one group of crossbeam inner ribs 125 are located at the end of the crossbeam 12 and extend into the hollow cavity of the side beam 11, and the crossbeam inner ribs 125 are connected to the side beam inner ribs 1103; the crossbeam inner ribs 125 are fixedly connected to each side beam inner rib 1103 to further improve the connection strength at the connection between the side beam 11 and the crossbeam 12. Among them, the crossbeam inner ribs 125 group includes two first crossbeam inner ribs 127 and second crossbeam inner ribs 126 arranged opposite each other in the longitudinal direction, one of the first crossbeam inner ribs 127 extends in the transverse direction and is fixed to the side beam inner rib 1103, and the other first crossbeam inner rib 127 is fixed to the side beam 11; the second crossbeam inner rib 126 extends in the longitudinal direction and is fixed between the two first crossbeam inner ribs 127 to connect and reinforce them.

[0068] The bogie 10 frame is preferably constructed of box-shaped side beams 11 welded from weather-resistant structural steel plates and seamless steel tube cross beams 12. This high-strength, corrosion-resistant steel plate welded box-shaped structure offers uniform stiffness, uniform strength, uniform stress, and a streamlined design. Its novel structure, simple manufacturing process, and high cost-effectiveness are key features. The mounting brackets described below utilize forged components of equal strength to the steel plate material. These forgings offer simple structure and excellent performance, meeting both structural and strength requirements. The bogie 10 frame utilizes thinner plate thicknesses and improved side beam 11 structure. This significantly reduces the overall frame mass while increasing load-bearing capacity, reducing the intersprung mass of the bogie 10 and improving its operational quality. Both the side beams 11 and cross beam 12 utilize steel plate welded into a box-shaped structure. This increases cross-sectional area, improves component strength, and enhances bending resistance. The welded components on the steel plate are easily positioned, resulting in a lightweight and simple process.

[0069] In some embodiments, the bogie 10 further comprises a traction rod mounting seat 16, which is located on the side walls of the crossbeam 12 facing away from each other and is staggered, preferably symmetrically arranged along the center of the bogie 10. Part of the traction rod mounting seat 16 is embedded in the hollow cavity of the crossbeam 12, forming a built-in structure located within the crossbeam 12. This reduces the number of mounting seats outside the crossbeam 12, reduces the occupied space, and makes the bogie 10 more compact. At the same time, the built-in structure forms a circular weld for the welding of the traction rod mounting seat 16, thereby increasing the weld strength. The traction rod mounting seat 16 is welded to the frame and is used to mount the two traction rod nodes of the central traction device. One end of the traction rod is fixed to the traction rod mounting seat 16, and the other end is mounted on the center pin. The traction rod is used to transmit the traction force of the bogie 10 to the upper car, effectively transmitting traction and braking forces while better adapting to the relative movement between the car body and the frame. Specifically, the outer vertical plate 121 of the crossbeam and the inner vertical plate 122 of the crossbeam are respectively provided with a traction rod mounting seat 16 hole, and the traction rod mounting seat 16 is installed in each traction rod mounting seat 16 hole, and the two ends along the longitudinal direction protrude from the outer vertical plate 121 of the crossbeam and the inner vertical plate 122 of the crossbeam, that is, the end of the traction rod mounting seat 16 protruding from the inner vertical plate 122 of the crossbeam extends toward the transverse center line, and the end of the traction rod mounting seat 16 protruding from the outer vertical plate 121 of the crossbeam extends away from the transverse center line. Most of the traction rod mounting seats 16 are buried in the hollow cavity of the crossbeam 12, making the structure of the bogie 10 more compact.

[0070] In other embodiments, the bogie 10 further includes brake caliper mounting blocks 15 symmetrically disposed at both ends of the side beams 11 along the transverse centerline of the bogie 10. Two brake caliper mounting blocks 15 are provided on each side beam 11, and portions of the brake caliper mounting blocks 15 are embedded within the hollow cavity of the side beam 11. Specifically, holes for the brake caliper mounting blocks 15 are provided on the side beam outer plate 1101, the side beam inner plate 1102, and the side beam inner rib 1103. The brake caliper mounting blocks 15 are mounted within the holes and extend outwardly from the side beam outer plate 1101 and the side beam inner plate 1102 at their respective transverse ends. This arrangement makes the bogie 10 more compact, increases the welding area between the brake caliper mounting blocks 15 and the side beam 11, and improves weld strength.

[0071] Furthermore, it also includes:

[0072] The anti-snaking damper mounting seat 18 is symmetrically arranged at the bottom of the side member outer plate 1101 along the longitudinal centerline, and is used to mount the secondary lateral damper and the anti-snaking damper. The anti-snaking damper is provided to suppress the snaking motion of the vehicle;

[0073] The anti-roll torsion bar mounting seat 19 is symmetrically arranged at the bottom of the side member outer plate 1101 along the longitudinal centerline and is used to mount the anti-roll torsion bar. When the vehicle rolls during operation, the torsion arm drives the torsion bar to twist. The torsion bar material can provide reverse torsional force to prevent the vehicle body from rolling and maintain vehicle stability.

[0074] The primary vertical shock absorber mounting base 111 is located at both longitudinal ends of the side member 11 and is integrated into the lower cover of the side member 11. It is used to install the primary vertical shock absorber. The primary vertical shock absorber is used in conjunction with the coil steel spring in the primary suspension system. The primary vertical hydraulic shock absorber is used to absorb the vertical motion energy between the frame and the wheelset, allowing the vertical vibration to converge quickly.

[0075] The secondary vertical shock absorber mounting base 112 is symmetrically arranged at the bottom of the side beam outer plate 1101 along the longitudinal center line and is used to install the secondary vertical shock absorber;

[0076] The arm locating mounts 113 are symmetrically positioned below the lower cover plates of the side beams 11, along the transverse centerline of the bogie 10. They are used to mount the wheelset axlebox locating system. This high-axle-load bogie 10 utilizes an arm-type locating system. The suspension system for the axlebox locating system utilizes a combination of double helical steel springs and hydraulic shock absorbers. The helical steel springs are located on either side of the axlebox and supported on the frame. The primary suspension system is equipped with a primary vertical hydraulic shock absorber to absorb the vertical motion energy between the frame and wheelset, allowing for rapid convergence of vertical vibrations.

[0077] Furthermore, it also includes:

[0078] The gearbox mounting bases 13 are respectively located on the two crossbeam outer plates 121 and are staggered. The gearbox mounting bases 13 are used to install and fix the gearbox;

[0079] The motor mounting bases 14 are respectively located on the two crossbeam outer plates 121 and are staggered, and are used to install and fix the traction motor;

[0080] Transverse stop mounting seats 17 are located at both ends of the transverse centerline of the bogie 10 and within the traction device installation space for mounting transverse stops. Transverse stops are mounted on the transverse stop mounting seats 17 and form a set of limit mechanisms with the transverse stop seats on the vehicle body to limit the lateral relative displacement and rotation between the bogie 10 and the vehicle body, ensuring safe operation of the vehicle.

[0081] Secondary lateral damper mounting blocks 110, located on the two crossbeam upper covers 123 and offset from each other, are used to mount the secondary lateral dampers. The secondary lateral damper mounting blocks 110 on the bogie 10 and the lateral damper mounts on the center pin are mounted at either end of the lateral damper, respectively, to reduce lateral vibrations during relative motion between the frame assembly, the bolster, and the carbody.

[0082] The above bogie 10 frame design calculation can meet the needs of high-speed train bogies 10 with a single vehicle weight of 80t and a speed exceeding 200km / h. The overall layout of the bogie 10 is compact and reasonable, and the design structure is novel.

[0083] Based on the bogie 10 provided in the above embodiment, the present application also provides a rail vehicle, which includes a car body, and the car body has the bogie 10 described in the above embodiment. Since the rail vehicle adopts the energy absorption device in the above embodiment, please refer to the above embodiment for the beneficial effects of the rail vehicle.

[0084] In the description of this application, it should be understood that the terms "front", "rear", "head", "tail", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0086] In this application, unless otherwise specified or limited, terms such as "mounted" and "connected" should be understood broadly. For example, "connected" can refer to direct connection or indirect connection through an intermediate medium, and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0087] Although some optional embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including some optional embodiments and all changes and modifications that fall within the scope of the present application.

[0088] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A bogie, characterized in that, Comprising: Two side beams arranged in parallel, the side beams extending longitudinally; Two cross beams arranged in parallel, each cross beam being located transversely between the two side beams, and a traction device installation space being formed between the two cross beams; The side beam is a box-shaped side beam, and side beam internal stiffening plates are arranged in the hollow cavity of the box-shaped side beam, the side beam internal stiffening plates being arranged longitudinally.

2. The bogie according to claim 1, characterized in that, The side beam includes: A side beam outer vertical plate and a side beam inner vertical plate, the side beam outer vertical plate and the side beam inner vertical plate being arranged side by side transversely; A side beam upper cover plate and a side beam lower cover plate, the longitudinal two sides of the side beam upper cover plate being respectively fixed to the tops of the side beam outer vertical plate and the side beam inner vertical plate; the longitudinal two sides of the side beam lower cover plate being respectively fixed to the bottoms of the side beam outer vertical plate and the side beam inner vertical plate; the side beam outer vertical plate, the side beam inner vertical plate, the side beam upper cover plate and the side beam lower cover plate are connected to form a hollow box structure; The side beam internal stiffening plates are respectively fixed to the side beam upper cover plate and the side beam lower cover plate.

3. The bogie according to claim 2, characterized in that, There are two groups of the side beam internal stiffening plates, and the two groups of side beam internal stiffening plates are respectively located transversely near one end of the side beam outer vertical plate and near one end of the side beam inner vertical plate.

4. The bogie according to claim 1, characterized in that, The cross beam is a box-shaped cross beam, and a plurality of cross beam internal stiffening plates are arranged in the hollow cavity of the box-shaped cross beam, each cross beam internal stiffening plate being arranged transversely.

5. The bogie according to claim 4, characterized in that, The cross beam includes: A cross beam outer vertical plate and a cross beam inner vertical plate, arranged side by side longitudinally, and the cross beam inner vertical plate is close to the transverse center line side of the bogie; A cross beam upper cover plate and a cross beam lower cover plate, the transverse two sides of the cross beam upper cover plate being respectively fixed to the tops of the cross beam outer vertical plate and the cross beam inner vertical plate; the transverse two sides of the transverse lower cover plate being respectively with the The cross beam outer vertical plate and the cross beam inner vertical plate are fixed to the bottoms; the cross beam outer vertical plate, the transverse inner vertical plate, the cross beam upper cover plate and the transverse lower cover plate form a hollow box structure.

6. The bogie according to claim 5, characterized in that, The circumferences of the cross beam internal stiffening plates are respectively connected to the cross beam outer vertical plate, the cross beam inner vertical plate, the cross beam upper cover plate and the cross beam lower cover plate; the cross beam internal stiffening plates have stiffening plate weight reduction openings, and the stiffening plate weight reduction openings are arranged facing the cross beam inner vertical plate.

7. The bogie according to claim 6, characterized in that, Portions of the cross beam internal stiffening plates opposite to the top corners of the cross beam are provided with notches.

8. The bogie according to claim 4, characterized in that, The hollow cavity of the cross beam is communicated with the hollow cavity of the side beam; at least one group of the cross beam internal stiffening plates is located at the end of the cross beam and extends into the hollow cavity of the side beam, and the cross beam internal stiffening plates are connected to the side beam internal stiffening plates; The cross beam internal stiffening plate group includes: Two first cross beam internal stiffening plates arranged oppositely longitudinally, one of the first cross beam internal stiffening plates extending transversely and being fixed to the side beam internal stiffening plate; A second cross beam internal stiffening plate, extending longitudinally and fixed between the two first cross beam internal stiffening plates.

9. The bogie according to claim 5, characterized in that, Further comprising: Traction rod mounting seats, located on the side walls of the cross beams facing away from each other and arranged staggeredly, and part of the traction rod mounting seats are buried in the hollow cavity of the cross beams.

10. The bogie according to claim 9, characterized in that, The outer vertical plate and the inner vertical plate of the cross beam are respectively provided with towing rod mounting seat holes. The towing rod mounting seat is installed in each of the towing rod mounting seat holes, and the two ends along the longitudinal direction respectively protrude from the outer vertical plate and the inner vertical plate of the cross beam.

11. The bogie according to claim 2, characterized in that, It further includes: Brake caliper mounting seats, symmetrically arranged at both ends of the side beam along the transverse center line of the bogie, and part of the brake caliper mounting seats are buried in the hollow cavity of the side beam.

12. The bogie according to claim 11, characterized in that, The outer vertical plate of the side beam, the inner vertical plate of the side beam, and the inner rib plate of the side beam are respectively provided with brake caliper mounting seat holes. The brake caliper mounting seat is installed in the brake caliper mounting seat holes, and the two ends along the transverse direction respectively protrude from the outer vertical plate and the inner vertical plate of the side beam and extend outwards.

13. The bogie according to claim 2, characterized in that, It further includes: Hunting vibration damper mounting seats, symmetrically arranged at the bottom of the outer vertical plate of the side beam along the longitudinal center line, for installing secondary lateral vibration dampers and hunting vibration dampers; Anti-roll torsion bar mounting seats, symmetrically arranged at the bottom of the outer vertical plate of the side beam along the longitudinal center line, for installing anti-roll torsion bars; Primary vertical vibration damper mounting seats, located at the two longitudinal ends of the side beam and integrated at the lower cover plate of the side beam, for installing primary vertical vibration dampers; Secondary vertical vibration damper mounting seats, symmetrically arranged at the bottom of the outer vertical plate of the side beam along the longitudinal center line, for installing secondary vertical vibration dampers; Rotary arm positioning seats, symmetrically arranged below the two ends of the lower cover plate of the side beam along the transverse center line of the bogie.

14. The bogie according to claim 5, characterized in that, It further includes: Gearbox mounting seats, respectively located on the two outer vertical plates of the cross beam and arranged in a staggered manner, and the gearbox mounting seats are used for installing and fixing the gearbox; Motor mounting seats, respectively located on the two outer vertical plates of the cross beam and arranged in a staggered manner, for installing and fixing traction motors; Lateral stop mounting seats, located at both ends of the transverse center line of the bogie and within the installation space of the traction device, for installing lateral stops; Secondary lateral vibration damper mounting seats, respectively located on the upper cover plates of the two cross beams and arranged in a staggered manner, for installing secondary lateral vibration dampers.

15. An orbital vehicle, characterized in that, It includes a car body, and the car body has the bogie according to any one of claims 1-14.

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