CN220199296U - Bogie frame and railway vehicle - Google Patents

Abstract

The application discloses a framework of a bogie and a railway vehicle, wherein the framework comprises two side beams and two cross beams, one end of each cross beam is connected with one cross beam, and the other end of each cross beam is connected with the other side beam; the side beams are provided with through holes, the end parts of the cross beams penetrate through the through holes, and two vertical shock absorber seats are arranged at the two end parts of one cross beam. The connection of the cross beam and the side beam of the framework is reliable, the arrangement of the secondary vertical shock absorber is reliable, and the structure is compact.

Description

Bogie frame and railway vehicle

Technical Field

The utility model relates to the technical field of railway vehicles, in particular to a bogie frame and a railway vehicle.

Background

The bogie comprises a framework which is used as a basic component of the bogie and is used for installing wheel sets, brakes, motors and other components.

The frame generally comprises two longitudinally extending side beams with a cross member disposed therebetween, the cross member connecting the two side beams. The two ends of the cross beam may be welded or fastened to the side beams by fasteners, and a plurality of mounts may be provided to the cross beam or side beams, such as two-train vertical damper mounts welded to the outside of the side beams. The attachment of such a frame, side beams and cross beams, such as a secondary vertical shock absorber, is not reliable.

Disclosure of Invention

The utility model provides a framework of bogie, the crossbeam of this framework is comparatively reliable with the connection of curb girder, and the setting of secondary vertical shock absorber is also comparatively reliable, compact structure.

The application provides a framework of a bogie, which comprises two side beams and two cross beams, wherein one end of each cross beam is connected with one cross beam, and the other end of each cross beam is connected with the other side beam; the side beams are provided with through holes, the end parts of the cross beams penetrate through the through holes, and two vertical shock absorber seats are arranged at the two end parts of one cross beam.

In one embodiment, the cross beam is welded to the side beam, and the secondary vertical shock absorber mount is welded to an end of the cross beam.

In one specific embodiment, the air spring support beam further comprises an air spring support beam, one side of the air spring support beam is fixed to the outer side of the side beam, and two ends of the air spring support beam are respectively fixed to the end portions of the two cross beams.

In one specific embodiment, the bottom of the air spring support beam is provided with an anti-hunting shock absorber seat.

In one embodiment, the side member includes a side member middle section located in the middle in the longitudinal direction, a side member end section, and a side member transition section joining the side member end section and the side member middle section, the side member end section being higher than the side member middle section, the upper surface of the side member end section being disposed horizontally, the lower surface of the side member end section including a slope and a horizontal surface that meet, the slope being closer to the side member transition section, the slope being disposed obliquely upward from one end near the side member transition section to the other end.

In one embodiment, the device further comprises a brake hanger arranged on the inner side of the side beam transition section, and/or a positioning rotary arm seat arranged on the lower surface of the side beam transition section.

In one embodiment, the anti-roll torsion bar further comprises at least one of a motor hanger, a gearbox hanger and an anti-roll torsion bar; part of the motor hanging seat is welded on the outer side of the cross beam, and the other part of the motor hanging seat is welded on the bottom of the cross beam; the gearbox hanging seat is arranged on the outer side of the cross beam; the anti-rolling torsion bar seat is arranged on the inner side of the cross beam.

In one specific embodiment, the device further comprises two auxiliary beams, one end of each auxiliary beam is connected with one cross beam, and the other end of each auxiliary beam is connected with the other cross beam; the lower surface of the auxiliary beam is in an upward concave arc shape.

In a specific embodiment, the device further comprises at least one of a transverse shock absorber seat, a transverse stop seat and an integral lifting seat, wherein the transverse shock absorber seat is arranged on the upper surface of the auxiliary beam, and the transverse stop seat and the integral lifting seat are arranged on the inner side of the auxiliary beam.

In a specific embodiment, one lateral side of the lateral stop seat extends laterally and is bent to form the integral lifting seat.

The present application also provides a railway vehicle comprising a bogie frame as claimed in any one of the preceding claims.

The secondary vertical damper mount is provided in this application to the end of the cross beam, i.e. the secondary vertical damper is provided at the end of the cross beam, and the end of the cross beam passes through the side beam. On the one hand, the end part of the cross beam penetrates through the side beam, so that connection can be established with the inner side and the outer side of the side beam, and the connection is reliable; on the other hand, compare in the prior art with the direct outside that sets up the secondary vertical shock absorber at the curb girder, the secondary vertical shock absorber in this application sets up the tip at the crossbeam and wear out the curb girder, then when strengthening crossbeam and curb girder connection reliability, the tip of crossbeam is equivalent to the mount pad basis of wearing to establish on the curb girder again, the installation of secondary vertical shock absorber is more reliable, and the crossbeam provides the setting position of secondary vertical shock absorber seat moreover, can save space for the framework is compacter.

Drawings

FIG. 1 is a schematic view of a framework of a steering frame in an embodiment of the present application;

FIG. 2 is a schematic illustration of the cross beam and auxiliary beam connection of FIG. 1;

FIG. 3 is a schematic view of the hollow spring support beam of FIG. 1;

FIG. 4 is a schematic view of the side member of FIG. 1;

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a schematic view of the auxiliary beam of FIG. 2;

fig. 7 is a front view of the auxiliary beam of fig. 6.

The reference numerals in fig. 1-7 are illustrated as follows:

100-frameworks;

1-side beams; 1-1-a side sill middle section; 1-2-side beam transition sections; 1-3-side beam end sections; 1-3 a-inclined plane; 1-3 b-horizontal plane; 1 a-a through hole;

2-a cross beam; 3-auxiliary beams; 3-1-arc connection ends; 4-an empty spring support beam; 4-1-arc connection ends; 5-braking a hanging seat; 6-positioning a rotating arm seat; 7-a anti-hunting damper mount; 8-a motor hanging seat; 9-a gearbox hanging seat; 10-two-system vertical shock absorber seat; 11-a transverse stop seat; 12-an integral lifting seat; 13-a transverse shock absorber mount; 14-an empty spring mounting seat; 15-anti-roll torsion bar seat.

Detailed Description

In order to better understand the aspects of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings and detailed description.

Referring to fig. 1 and 2, fig. 1 is a schematic view of a framework 100 of a steering frame according to an embodiment of the present application; fig. 2 is a schematic view of the connection of the transverse beam 2 and the auxiliary beam 3 in fig. 1.

The bogie is a member of a railway vehicle, and the frame 100 of the bogie includes two side beams 1 and two cross beams 2, the side beams 1 extending in the longitudinal direction, the cross beams 2 extending in the transverse direction, the longitudinal direction being the longitudinal direction of the railway vehicle, and the transverse direction being perpendicular to the longitudinal direction, being the width direction of the railway vehicle. As shown in fig. 1, one end of the cross member 2 is connected to one cross member 2, the other end of the cross member 2 is connected to the other side member 1, the two side members 1 are arranged in parallel with each other, and the two cross members 2 may be arranged in parallel with each other, so that an H-shaped frame 100 is formed.

In the present embodiment, the side member 1 of the frame 100 has a through hole 1a (shown in fig. 4), the side member 1 has a hollow structure, the through hole 1a penetrates the inside and the outside of the side member 1, the opposite side of the two side members 1 is the inside of the side member 1, and the opposite side is the outside of the side member 1. The ends of the cross member 2 pass through the through holes 1a of the side members 1 on the corresponding sides, i.e., the two ends of the cross member 2 respectively pass through the corresponding side members 1 in the lateral direction. As shown in fig. 1, two vertical damper bases 10 are provided at both ends of one of the cross members 2.

So arranged, in the present embodiment, the secondary vertical shock absorber seat 10 is disposed at the end of the cross member 2, that is, the secondary vertical shock absorber is disposed at the end of the cross member 2, and the end of the cross member 2 passes through the side member 1, as compared with the case where the secondary vertical shock absorber is disposed directly on the side member 1 in the related art. On the one hand, the end part of the cross beam passes through the side beam 1, so that connection can be established with the inner side and the outer side of the side beam 1, and the connection is more reliable; on the other hand, compared with the prior art that the secondary vertical vibration damper is directly arranged on the outer side of the side beam 1, the secondary vertical vibration damper in the embodiment is arranged at the end part of the cross beam 2 penetrating out of the side beam 1, so that the reliability of the connection between the cross beam 2 and the side beam 1 is enhanced, the end part of the cross beam 2 is equivalent to the base of the mounting seat penetrating on the side beam 1, the secondary vertical vibration damper is more reliably mounted, and the cross beam 2 provides the arrangement position of the secondary vertical vibration damper seat 10, so that the space can be saved, and the framework is more compact.

Specifically, the cross beam 2 and the side beam 1 can be welded and fixed, and the secondary vertical shock absorber seat 10 is also welded at the end of the cross beam 2, so that the welded and fixed structure is reliable, and of course, the secondary vertical shock absorber seat can also be fastened by a fastener. As shown in fig. 2, the cross beam 2 in this embodiment is specifically a steel pipe structure, and may be a circular steel pipe. The cross member 2 has a compact and lightweight tube sheet welded structure, and the cross member 2 is hollow and serves as an air chamber.

As shown in fig. 3, fig. 3 is a schematic view of the hollow spring support beam 4 of fig. 1.

The top of the air spring supporting beam 4 is provided with an air spring mounting seat 14, and an air spring suspended by a bogie secondary system can be supported and mounted on the air spring supporting beam 4. The air spring support beam 4 in the present embodiment is provided outside the side member 1, and both ends in the longitudinal direction of the air spring support beam 4 are connected to the ends of the two cross members 2 on the same side, respectively. As understood from fig. 1 and 3, the two longitudinal ends of the air spring supporting beam 4 are arc-shaped, are arc-shaped connecting ends 4-1, and can be clamped on the peripheral walls of the two cross beams 2 and welded and fixed. Meanwhile, one side of the hollow spring supporting beam 4, which is close to the side beam 1, can be welded and fixed with the side beam 1, so that the hollow spring supporting beam 4 is connected with the side beam 1 and the cross beam 2 at the same time, the connection of the hollow spring supporting beam 4 is reliable, the connection of the cross beam 2 and the side beam 1 is enhanced, and the load transmission on the framework 100 is balanced.

With continued reference to fig. 4 and 5, fig. 4 is a schematic structural view of the side member 1 in fig. 1; fig. 5 is a front view of fig. 4.

The side member 1 in this embodiment includes a side member middle section 1-1, side member end sections 1-3, and side member transition sections 1-2 joining the side member end sections 1-3 and the side member middle section 1-1, which are located at the middle in the longitudinal direction, i.e., one longitudinal end section 1-3, one side member transition section 1-2, side member middle section 1-1, another side member transition section 1-2, another side member end section 1-2 are distributed in the longitudinal direction, and the side members 1 are symmetrically arranged along the transverse midline. Wherein, the side beam end section 1-3 is higher than the side beam middle section 1-1, and the side beam middle section 1-1 is also arranged approximately horizontally, so that the side beam transition section 1-2 is arranged obliquely, as shown in figure 5, the side beam 1 is inverted-shaped, one end of the side beam transition section 1-2, which is higher, is connected with the side beam end section 1-3, and the other end of the side beam transition section 1-2, which is lower, is connected with the side beam middle section 1-1.

In addition, as shown in FIG. 5, the upper surfaces of the side sill end sections 1-3 are disposed horizontally, i.e., the upper surfaces are generally flush with the horizontal plane. The lower surface of the side beam end section 1-3 comprises an inclined plane 1-3a and a horizontal plane 1-3b which are connected, the inclined plane 1-3a is closer to the side beam transition section 1-2, and the inclined plane 1-3a is obliquely arranged upwards from one end close to the side beam transition section 1-2 to the other end. It can be seen that the thickness of the side sill end section 1-3 in this embodiment generally tapers from one end near the side sill transition section 1-2 to the other, wherein a small section of the terminal end of the side sill end section 1-3 is of constant thickness design to act as a vertical shock absorber mount.

The side beam 1 with the structure is designed into a fish belly shape with a variable cross section, and the bending modulus of each cross section of the side beam 1 is determined according to the design concept of equal strength margin according to the bearing moment distribution of the side beam 1, so that the side beam 1 in the embodiment is formed. Namely, the side beam 1 in this embodiment has a better bending resistance in terms of structural form, meets the strength requirement, and compared with the common equal thickness design of the side beam 1 in the background art, the side beam 1 structure can remove redundant parts, achieves the purpose of weight reduction, and realizes the light-weight design, so that the speed per hour of the railway vehicle is improved to 400km, and the running energy consumption of the train is reduced.

Further, as shown in FIG. 5, in order to join the side member middle section 1-1 and the side member end section 1-3 arranged at a high and low, the side member transition section 1-2 is arranged obliquely, and the upper surface of the side member transition section 1-2 is inclined at a smaller angle than the lower surface of the side member transition section 1-2, i.e., the side member transition section 1-2 is also gradually reduced in thickness from one end near the side member middle section 1-1 to the other end. The side beam transition section 1-2 designed in this way can be well connected with the side beam middle section 1-1 and the side beam end section 1-3, and the purpose of light weight and weight reduction is achieved on the premise of meeting the strength requirement.

When the vehicle runs at a high speed of 400km/h or more, the line vibration load increases, and the framework 100 bearing structure needs to perform structural optimization on a position with larger stress, so that the safety margin is improved. All the components of the framework 100 in this embodiment can be welded, so that during the processing process, the weld joint part with larger stress can be polished, the stress concentration caused by structural singularities is reduced, the allowable stress of the weld joint is improved, and the structural optimization is performed accordingly.

In addition, as shown in fig. 4, the frame 100 further includes a brake hanger 5, the brake hanger 5 being disposed inside the side sill transition section 1-2 with two through holes 1a between the two brake hangers 5. The frame 100 may also include a locating rocker 6, the locating rocker 6 being provided on the lower surface of the side sill transitions 1-2. The brake hanging seat 5 and the positioning rotating arm seat 6 are arranged at the position of the side beam transition section 1-2 of the side beam 1, do not interfere with the distribution of other components, are mutually separated from the two-system vertical shock absorber seat 10, the hollow spring supporting beam 4 and other components at the end part of the cross beam 2, and are relatively dispersed to the load generated by the side beam 1, so that the load distribution is more reasonable. The brake shoes 5 and the positioning arm shoes 6 may be welded to the side beams 1.

The hollow spring support beam 4 mentioned above is provided outside the side member middle section 1-1, corresponding to the hollow spring provided in the middle. In addition, the bottom of the air spring supporting beam 4 is provided with the anti-meandering shock absorber seat 7, so that the space of the air spring supporting beam 4 can be fully utilized, and the structure is more compact.

The frame 100 in this embodiment further includes at least one of a motor mount 8, a gear box mount 9, and an anti-roll torsion bar mount 15. As shown in fig. 2, a part of the motor hanging seat 8 is welded on the outer side of the cross beam 2, and a part of the motor hanging seat is welded on the bottom of the cross beam 2, so that the mounting reliability of the motor hanging seat 8 is higher to ensure the reliability of the motor after being mounted. The gearbox hanging seat 9 is arranged on the outer side of the cross beam 2, and the motor hanging seat 8 and the gearbox hanging seat 9 are transversely distributed on the outer side along the cross beam 2. The anti-rolling torsion bar seat 15 may be disposed on the inner side of the cross beam 2, as shown in fig. 2, two anti-rolling torsion bar seats 15 are disposed on one cross beam 2, two ends of the cross beam 2 are also provided with two vertical shock absorber seats 10, and two auxiliary beams 3 are disposed between the two anti-rolling torsion bar seats 15. The space inside and outside the cross beam 2 is fully utilized, a plurality of needed mounting seats are arranged, the space layout is reasonable, and the structure is compact. The motor hanging seat 8, the gear box hanging seat 9 and the anti-rolling torsion bar seat 15 can be welded on the cross beam 2, and each mounting seat can be provided with an arc-shaped end to be clamped on the corresponding peripheral wall position of the cross beam 2 for welding.

With continued reference to fig. 6 and 7, fig. 6 is a schematic structural view of the auxiliary beam 3 in fig. 2; fig. 7 is a front view of the auxiliary girder 3 of fig. 6.

The frame 100 in this embodiment further includes two auxiliary beams 3, one end of each auxiliary beam 3 is connected to one cross beam 2, the other end of each auxiliary beam 3 is connected to the other cross beam 2, and two ends of each auxiliary beam 3 may be arc-shaped connection ends 3-1 to be clamped to the peripheral wall of the cross beam 2, and may be welded and fixed. As shown in fig. 1 and 2, two auxiliary beams 3 extend in the longitudinal direction, and the strength of the frame 100 can be improved. As shown in fig. 7, the lower surface of the auxiliary beam 3 in this embodiment is in a concave arc shape, which is of an arch design, and has better strength, and the upper surface of the auxiliary beam 3 may be substantially horizontal.

The frame 100 may further include at least one of a lateral shock absorber seat 13, a lateral stop seat 11, and an integral lifting seat 12, as shown in fig. 6, the lateral shock absorber seat 13 is disposed on the upper surface of the auxiliary beam 3, and the lateral stop seat 11 and the integral lifting seat 12 are disposed on the inner side of the auxiliary beam 3. Here, the inner side of the auxiliary beam 3 means the opposite side of the two auxiliary beams 3, and the outer side means the opposite side. Also, by using the auxiliary beam 3 to provide the transverse damper seat 13, the transverse stop seat 11 and the integral lifting seat 12, the space of the auxiliary beam 3 can be fully utilized, so that the structure is more compact. The transverse damper base 13, the transverse stop base 11, the integral lifting base 12 may be welded to the auxiliary beam 3.

In addition, as shown in fig. 6, one lateral side of the lateral stopper 11 in this embodiment is laterally extended and folded to form an integral lifting seat 12. The transverse stop seat 11 is integrated with a lifting function, so that the structure and the mounting steps can be simplified, and the cost is reduced.

In the above embodiment, the side beam 1, the cross beam 2, the auxiliary beam 3, the air spring support beam 4 and each mounting seat can be designed based on the equal strength allowance, and a lightweight structure is obtained on the premise of meeting the strength requirement, so that the bogie comprising the framework can meet high-speed operation and can be provided with a high-power motor. The frame 100 is designed to be lightweight as described above, and the weight of the frame 100 is increased by only about 5% when the motor weight is increased by 60% with the same axial weight.

The present embodiment also provides a rail vehicle, which includes the bogie frame 100 according to any of the above embodiments, and has the same technical effects as those of the above embodiments, and will not be described again.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (11)

1. The framework of the bogie is characterized by comprising two side beams and two cross beams, wherein one end of each cross beam is connected with one side beam, and the other end of each cross beam is connected with the other side beam; the side beams are provided with through holes, the end parts of the cross beams penetrate through the through holes, and two vertical shock absorber seats are arranged at the two end parts of one cross beam.

2. The bogie frame according to claim 1, wherein the cross beam is welded to the side beam, and the secondary vertical shock absorber mount is welded to an end of the cross beam.

3. The bogie frame according to claim 2, further comprising a hollow spring support beam, one side of the hollow spring support beam being fixed to an outer side of the side sill, both ends of the hollow spring support beam being fixed to end portions of both the cross beams, respectively.

4. A bogie frame according to claim 3 wherein the bottom of the air spring support beam is provided with an anti-hunting damper mount.

5. The bogie frame according to claim 1, wherein the side sill includes a side sill middle section located at a middle in a longitudinal direction, a side sill end section located higher than the side sill middle section, and a side sill transition section joining the side sill end section and the side sill middle section, an upper surface of the side sill end section being horizontally disposed, a lower surface of the side sill end section including a meeting slope and a horizontal surface, the slope being closer to the side sill transition section, the slope being disposed obliquely upward from one end near the side sill transition section to the other end.

6. The bogie frame of claim 4, further comprising a brake hanger disposed inboard of the side sill transition section and/or a locating rocker disposed on a lower surface of the side sill transition section.

7. The bogie frame according to claim 1 further comprising at least one of a motor mount, a gearbox mount, and an anti-roll torsion bar mount; part of the motor hanging seat is welded on the outer side of the cross beam, and the other part of the motor hanging seat is welded on the bottom of the cross beam; the gearbox hanging seat is arranged on the outer side of the cross beam; the anti-rolling torsion bar seat is arranged on the inner side of the cross beam.

8. The bogie frame according to any one of claims 1 to 7, further comprising two auxiliary beams, one end of the auxiliary beams being connected to one of the cross beams, the other end of the auxiliary beams being connected to the other cross beam; the lower surface of the auxiliary beam is in an upward concave arc shape.

9. The bogie frame according to claim 8, further comprising at least one of a lateral shock absorber mount, a lateral stopper mount, and an integral lifting mount, the lateral shock absorber mount being provided on an upper surface of the auxiliary beam, the lateral stopper mount and the integral lifting mount being provided inside the auxiliary beam.

10. The bogie frame according to claim 9 wherein a lateral side of the lateral stop extends laterally and is folded to form the integral lifting seat.

11. A rail vehicle, characterized by a frame comprising a bogie as claimed in any one of claims 1-10.