CN220262764U - Side beam assembly of bogie frame, bogie frame and railway vehicle - Google Patents

Abstract

The application discloses a curb girder constitution of bogie framework, framework and rail vehicle of bogie, curb girder constitution include the curb girder, the curb girder includes in the longitudinal direction is located curb girder middle part section, curb girder tip section, and links up curb girder tip section with the curb girder changeover portion of curb girder middle part section, curb girder tip section is higher than the curb girder middle part section, the upper surface level of curb girder tip section sets up, the lower surface of curb girder tip section is including inclined plane and the horizontal plane that meets, and the inclined plane of curb girder tip section is more close to the curb girder changeover portion, the inclined plane of curb girder tip section is by being close to the one end of curb girder changeover portion is upwards inclined setting to the other end. The side beams formed by the side beams are designed according to equal strength allowance, the two sides of the middle part of the side beams are designed in a variable diameter mode, and the structure is optimized on the premise that strength requirements are met.

Description

Side beam assembly of bogie frame, bogie frame and railway vehicle

Technical Field

The utility model relates to the technical field of railway vehicles, in particular to a side beam assembly of a bogie frame, the 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 are provided to the cross beam or the side beams. The side beams are generally of equal thickness design and are not structurally optimized.

Disclosure of Invention

The side beam assembly of the bogie frame is designed according to equal strength allowance, two sides of the middle of the side beam are designed in a variable diameter mode, and the structure is optimized on the premise that strength requirements are met.

The application provides a curb girder of bogie frame is constituteed, including the curb girder, the curb girder includes the curb girder middle part section that is located the middle part in longitudinal direction, curb girder tip section, and links up the curb girder tip section with the curb girder changeover portion of curb girder middle part section, curb girder tip section is higher than the curb girder middle part section, the upper surface level of curb girder tip section sets up, the lower surface of curb girder tip section is including the inclined plane and the horizontal plane that meet, the inclined plane of curb girder tip section is closer to the curb girder changeover portion, the inclined plane of curb girder tip section is by being close to the one end of curb girder changeover portion is to the other end upward sloping setting.

In one embodiment, the lower and upper surfaces of the side rail transition section each include a chamfer, and the chamfer of the side rail transition section lower surface is angled at a greater angle than the chamfer of the side rail transition section upper surface.

In one embodiment, the upper surface of the side rail transition section further comprises a horizontal surface, the inclined surface of the side rail transition section upper surface is connected to the upper surface of the side rail middle section, and the horizontal surface of the side rail transition section upper surface is connected to the upper surface of the side rail end section.

In one embodiment, the side beams have through holes extending through the inner and outer sides thereof for the cross members of the bogie frame to pass through and be welded.

In one embodiment, the side sill assembly further includes a brake hanger disposed inboard of the side sill transition section.

In one embodiment, the top of the side member extends inwardly to form an extension that forms part of the brake shoe.

In one embodiment, the side beam assembly further comprises a positioning rocker disposed on a lower surface of the side beam transition section.

The present application also provides a bogie frame comprising a side sill assembly of a bogie frame as claimed in any preceding claim.

The present application also provides a rail vehicle comprising a side sill assembly of any of the bogie frames described above.

The present application also provides a rail vehicle comprising a side sill assembly of any of the bogie frames described above.

The side beam of the bogie frame comprises a side beam middle section, a side beam transition section and a side beam end section, is designed into a variable-section fish belly shape, and determines the bending modulus of each section of the side beam according to the bearing moment distribution of the side beam and the design concept of equal strength allowance, so as to form the side beam of the application. Compared with the common constant-thickness design of the side beams in the background art, the side beam structure can remove redundant parts, achieve the purpose of weight reduction, realize the light-weight design, and further improve the speed per hour of the railway vehicle to 400km to reduce the running energy consumption of a train unit.

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 view of the side sill of FIG. 1;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a schematic illustration of the cross beam and auxiliary beam connection of FIG. 1;

FIG. 5 is a schematic view of the hollow spring support beam of FIG. 1;

FIG. 6 is a schematic view of the auxiliary beam of FIG. 4;

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; 1-2 a-a second bevel; 1-2 b-a second horizontal plane; 1-3-side beam end sections; 1-3 a-a first bevel; 1-3 b-a first 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; 5-1-extension; 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; 16-a vertical shock absorber 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, fig. 1 is a schematic view of a frame 100 of a steering frame according to an embodiment of the present application.

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.

With continued reference to fig. 2 and 3, fig. 2 is a schematic structural view of the side member 1 in fig. 1; fig. 3 is a front view of fig. 2.

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, thus, the side beam transition section 1-2 is arranged obliquely, as shown in figure 3, 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. 3, the upper surfaces of the side rail end sections 1-3 are disposed horizontally, i.e., the upper surfaces are generally flush with the horizontal. The lower surface of the side member end section 1-3 includes an adjoining inclined surface and a horizontal surface, defined as a first inclined surface 1-3a and a first horizontal surface 1-3b, the first inclined surface 1-3a being closer to the side member transition section 1-2, the first inclined surface 1-3a being disposed obliquely upward from one end near the side member transition section 1-2 to the other end. It can be seen that the thickness of the side member end section 1-3 in this embodiment is substantially reduced from one end near the side member transition section 1-2 to the other, wherein a small section of the end of the side member end section 1-3 is of uniform thickness design to provide a series of vertical shock absorber seats 16, as shown in fig. 3, the side member end section 1-3 directly above the first horizontal plane 1-3b is used to provide a series of vertical shock absorber seats 16, and the series of vertical shock absorber seats 16 may be integrally formed on the side member end section 1-3 or may be separately welded to the upper surface of the side member end section 1-3.

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 the embodiment is more optimized in structural form, has better bending resistance and 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, realizes the light-weight design, and meets the requirements of improving the speed per hour of the railway vehicle to 400km and reducing the running energy consumption of a train unit.

Further, as shown in FIG. 3, in order to join the side member middle section 1-1 and the side member end section 1-3 arranged in height, the side member transition section 1-2 is arranged obliquely, and the upper surface and the lower surface 1-2c of the side member transition section 1-2 each include inclined surfaces, the inclination angle of the upper surface is smaller than that of the lower surface 1-2c 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.

In this embodiment, the upper surface of the side member transition section 1-2 includes a slope and a horizontal plane, which are the second slope 1-2a and the second horizontal plane 1-2b, respectively, and the second horizontal plane 1-2b and the upper surface of the side member end section 1-3 are flush, so that the transition connection to the side member end section 1-3 is easier and the transition connection is smoother. The lower surface of the side member transition section 1-2 may also be inclined at an angle larger than the angle of inclination of the first inclined surface 1-3a of the side member end section 1-3, whereby the thickness of the side member middle section 1-1 is finally, and then gradually tapered to both sides.

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.

With continued reference to fig. 1, and as will be appreciated in connection with fig. 4, fig. 4 is a schematic illustration of the connection of the transverse beam 2 and the auxiliary beam 3 of fig. 1.

In this embodiment, the side beams 1 of the frame 100 have through holes 1a (shown in fig. 2), the side beams 1 are hollow structures, and may specifically be thin-walled box structures, that is, they are formed by welding thin-walled plates, the through holes 1a of the side beams 1 penetrate through the inner sides and the outer sides of the side beams 1, the opposite sides of the two side beams 1 are the inner sides of the side beams 1, and the opposite sides are the outer sides of the side beams 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 2 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 may be a thin-wall box structure, the cross beam 2 and the side beam 1 may be welded and fixed, and the second-system vertical shock absorber seat 10 is also welded to the end of the cross beam 2, which is reliable, and of course, may 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.

In addition, as shown in fig. 2, the frame 100 further includes a brake hanger 5, the brake hanger 5 is disposed at the inner side of the side beam transition section 1-2, two through holes 1a are located between the two brake hangers 5, as shown in fig. 2, the top of the side beam 1 may extend inward to form an extension portion 5-1, the extension portion 5-1 forms a part of the brake hanger 5, the side beam 1 may be a box-shaped beam structure formed by welding thin plates, the plate body at the top of the side beam 1 extends out of the extension portion 5-1, so that the connection between the brake hanger 5 and the side beam 1 is more reliable, and of course, the side beam 1 does not extend, and the brake hanger 5 may also be welded directly to the side beam 1. 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, and are mutually separated from the components such as the secondary vertical shock absorber seat 10, the air spring supporting beam 4 and the like at the end part of the cross beam 2, so that the load generated by the side beam 1 is also more dispersed, and the load distribution is more balanced. 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.

As shown in fig. 5, fig. 5 is a schematic view of the hollow spring support beam 4 of fig. 1.

The hollow spring supporting beam 4 can be of a thin-wall box type structure, the hollow spring installing seat 14 is arranged at the top of the hollow spring supporting beam 4, and a hollow spring hung by a bogie can be supported and installed on the hollow 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 1 and the side beam 2 is enhanced, and the load transmission on the framework 100 is balanced.

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. 4, 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. 4, 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, 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, and the auxiliary beams 3 may be of a thin-wall box structure. 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 (9)

1. The side beam assembly of the bogie frame is characterized by comprising a side beam, wherein the side beam comprises a side beam middle section, a side beam end section and a side beam transition section, the side beam middle section is longitudinally arranged in the middle, the side beam end section is higher than the side beam middle section, the upper surface of the side beam end section is horizontally arranged, the lower surface of the side beam end section comprises an inclined surface and a horizontal surface which are connected, the inclined surface of the side beam end section is closer to the side beam transition section, and the inclined surface of the side beam end section is upwards inclined from one end close to the side beam transition section to the other end.

2. The side sill assembly of a bogie frame as claimed in claim 1 wherein the lower and upper surfaces of the side sill transition each include a chamfer and the chamfer of the lower surface of the side sill transition is inclined at a greater angle than the chamfer of the upper surface of the side sill transition.

3. The side sill assembly of a truck frame of claim 2 wherein said upper surface of said side sill transition section further comprises a horizontal surface, said inclined surface of said side sill transition section upper surface being contiguous with said upper surface of said side sill middle section, said horizontal surface of said side sill transition section upper surface being contiguous with said upper surface of said side sill end section.

4. The side sill assembly of a bogie frame as claimed in claim 1, wherein the side sill has a through hole penetrating the inner and outer sides thereof for the cross member of the bogie frame to pass through and be welded.

5. The side sill assembly of a bogie frame as claimed in any of claims 1-4 further comprising a brake hanger disposed inboard of the side sill transition section.

6. The side sill assembly of a truck frame as in claim 5 wherein the top of said side sill extends inwardly forming an extension which forms part of said brake shoe.

7. The side sill assembly of a bogie frame as claimed in any of claims 1-4 further comprising a locating rocker disposed on a lower surface of the side sill transition section.

8. A bogie frame comprising a side sill assembly of a bogie frame as claimed in any of claims 1 to 7.

9. A rail vehicle comprising a side sill assembly of the bogie frame of claim 8.