CN112644548B

CN112644548B - Framework of bogie

Info

Publication number: CN112644548B
Application number: CN201910960109.2A
Authority: CN
Inventors: 陈经纬; 王迎春; 任庆利; 李辰生; 王明峰; 刘雁翔
Original assignee: CRRC Tangshan Co Ltd
Current assignee: CRRC Tangshan Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2022-07-26
Anticipated expiration: 2039-10-10
Also published as: CN112644548A

Abstract

The embodiment of the application provides a framework of bogie, the framework is crisscross framework, include: a frame rail in a longitudinal direction; a frame rail intersecting the frame rail; wherein the longitudinal direction is a direction of travel of the bogie. The technical problem that vibration between the components of the framework and the bogie is large is solved. The embodiment of the application solves the technical problem that the arrangement space of the framework is insufficient.

Description

Framework of bogie

Technical Field

The application relates to the technical field of railway vehicles, in particular to a framework of a bogie.

Background

Rail vehicles are an important traffic tie linking cities. The rail vehicle mainly includes: the bogie is used for bearing the vehicle body and realizing walking and steering functions.

The conventional bogie mainly includes: the power bogie comprises a framework, wheel pairs, a traction device, a braking device, a buffering device and a driving device. The frame is the main framework of the bogie, and many parts of the bogie are fixed with the frame through a metal bogie mounting seat. The conventional frame is an H-shaped frame formed by welding stainless steel materials, and includes two side members and a cross member fixed between the two side members. Many of the components of the truck are fixed to the side sill, resulting in tight layout space around the side sill and excessive density of components after the side sill is fixed to the components.

Therefore, the insufficient space for the framework is a technical problem to be solved by those skilled in the art.

The above information disclosed in the background section is only for enhancement of understanding of the background of the present application and therefore it may contain information that does not form the prior art that is known to a person of ordinary skill in the art.

Disclosure of Invention

The embodiment of the application provides a framework of a bogie, and aims to solve the technical problem that the arrangement space of the framework is insufficient.

The embodiment of the application provides a framework of bogie, the framework is criss-cross framework, include:

a frame rail in a longitudinal direction;

a frame rail intersecting the frame rail;

wherein the longitudinal direction is a direction of travel of the bogie.

Due to the adoption of the technical scheme, the embodiment of the application has the following technical effects:

the frame of the bogie is a cross-shaped frame, the frame longitudinal beam is positioned in the middle of the frame cross beam, and the frame longitudinal beam is connected with a plurality of components of the bogie; after the bogie is placed on the track, the number of parts of the bogie between the two running rails is increased, and the number of parts of the bogie near the running rails is reduced, so that the utilization of the arrangement space between the two wheel pairs of the bogie is facilitated.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic illustration of a truck having a frame of the truck of an embodiment of the present application mounted thereon;

FIG. 2 is another angle schematic of the truck shown in FIG. 1;

FIG. 3 is a schematic view of the frame of the truck of an embodiment of the present application;

FIG. 4 is a cross-sectional view of FIG. 3 at a frame rail;

FIG. 5 is an exploded view of FIG. 3;

fig. 6 is a cross-sectional view at one of the inserts of fig. 3.

Description of the reference numerals:

100 frames, 111 frame bodies, 112 composite material layers,

121 framework longitudinal beams, 121-1 horizontal mounting plates, 121-2 relief parts,

122 frame cross-beam, 122-1 holes for traction device mounting,

130, an insert, 131, a middle fixed seat, 132, a fixed flange,

a first step of the 141 stepped recess, a second step of the 142 stepped recess,

152 bogie mounting base.

Detailed Description

In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the following description of the exemplary embodiments of the present application with reference to the accompanying drawings is made in further detail, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all the embodiments. It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict.

Example one

The embodiment provides a framework of a bogie, and the framework is a mounting base of the bogie. The bogie can be applied to rail vehicles, which can be diesel locomotives or electric locomotives, and can be motor train units, subways, light rails, trams or the like.

FIG. 1 is a schematic view of a truck having a frame to which a truck according to an embodiment of the present application is mounted; FIG. 2 is another perspective view of the truck shown in FIG. 1; fig. 3 is a schematic view of a frame of a bogie according to an embodiment of the present application.

As shown in fig. 1, 2 and 3, a frame 100 of a bogie according to an embodiment of the present application is a cross-shaped frame, and includes:

frame stringers 121 in the longitudinal direction;

a frame cross member 122 intersecting the frame longitudinal member;

wherein the frame serves as a mounting base for the bogie and the longitudinal direction is the direction of travel of the bogie.

In a conventional H-shaped frame, the side beams are densely connected with the parts of the bogie, and after the bogie is placed on the track, there are densely arranged parts of the bogie near the running rails of the track. The framework of the bogie in the embodiment of the application is a cross-shaped framework, the framework longitudinal beam is positioned in the middle of the framework cross beam, and the framework longitudinal beam is connected with a plurality of components of the bogie; after the bogie is placed on the track, the space between the two running rails becomes more and the parts of the bogie near the running rails are reduced, and the space between the two wheel pairs of the bogie is larger as an arrangement space.

In practice, as shown in fig. 3, the frame longitudinal beam 121 has a shape with two ends higher and a middle lower;

wherein both ends of the frame rail 121 are adapted to be connected to a primary suspension system of the bogie.

The connection of the two ends of the framework longitudinal beam and a primary suspension system of the bogie requires a larger height, and the framework longitudinal beam is in a shape with the two ends higher and the middle part lower, so that the requirement can be met.

As an alternative, as shown in fig. 3, the frame stringer 121 includes:

horizontal mounting plates 121-1 which are positioned at two ends in the longitudinal direction and are horizontally arranged, wherein the horizontal mounting plates 121-1 are higher than the framework cross beam 122;

and a yielding part 121-2 connected between the horizontal mounting plate and the frame beam.

Therefore, the structural frame longitudinal beam has the characteristics of high shapes at two ends and low shapes in the middle, is embodied into a regular shape, and is convenient for processing and manufacturing the structural frame.

In practice, as shown in fig. 3, the frame stringers 121 have a thickness that increases gradually from the ends to the middle.

The thickness of the longitudinal beam of the framework is gradually increased from two ends to the middle part, so that the longitudinal beam of the framework can adapt to the characteristic that the middle part of the longitudinal beam of the framework bears larger weight.

In practice, as shown in fig. 3, the frame stringers 121 have a width that gradually increases from both ends to the middle.

The longitudinal frame beam has the characteristic that the width of the longitudinal frame beam is gradually increased from two ends to the middle part, and can adapt to the characteristic that the middle part of the longitudinal frame beam bears larger weight.

In operation, as shown in FIG. 3, the frame 100 is a symmetrical structure.

The framework with the symmetrical structure is convenient to process and manufacture and is also convenient to balance stress.

In practice, as shown in FIG. 3, a hole 122-1 for installing a traction device is provided at the center of the frame beam, and the hole 122-1 for installing a traction device of the bogie is provided.

The following describes how the truck mount is secured to the frame. FIG. 4 is a cross-sectional view of FIG. 3 at a frame rail; FIG. 5 is an exploded view of FIG. 3; fig. 6 is a cross-sectional view of one of the inserts of fig. 3.

In practice, as shown in fig. 4, 5 and 6, the frame comprises:

a rigid frame main body 111;

a composite layer 112, the composite layer 112 wrapping the entire outer surface of the truss body;

a rigid insert 130, the bottom of the insert 130 being located within the composite layer 112 to secure the insert to the composite layer and expose the top of the insert 130; namely, a bottom layer of the composite material layer is arranged between the insert and the framework main body;

wherein the top of the insert is used to mount the truck mount 152.

The rigid framework main body provides enough rigidity for the framework of the bogie to serve as an installation foundation of the bogie; and then, the whole framework is a rigid framework main body, the outer layer is wrapped on the whole outer surface of the framework main body and is a framework with a sandwich structure, and after the framework and the bogie mounting seat are mounted, at least one composite material layer is arranged between the bogie mounting seat and the framework main body, so that the composite material layer has good self-vibration absorption performance and good energy absorption performance, and the vibration between the framework and the parts of the bogie in the embodiment of the application can be reduced. A truck mount 152 is mounted on top of the insert. As a common approach, the truck mount 152 is secured to the top of the insert by bolts and bolt holes.

Fig. 3 shows a plurality of configurations of the truck mount 152 and a plurality of configurations of the insert 130, and the configuration of the insert 130 in cooperation with the configuration of the truck mount 152 in cooperation therewith may be sufficient to secure the truck mount to the top of the insert.

As for the structure of the insert, as shown in fig. 5 and 6, the insert includes:

a central fixed seat 131;

a fixing flange 132, wherein the fixing flange 132 extends outwards from the middle fixing base 131, and the thickness of the middle fixing base is greater than that of the fixing flange;

the composite material layer covers the fixing flange 132 and exposes the top of the middle fixing base 131;

wherein, the top of the middle fixing seat is used for installing the bogie mounting seat 152.

Therefore, the fixing flange enables the fixing area of the insert and the composite material layer to be large, the insert and the composite material layer are firmly fixed, and the thickness of the middle fixing seat is larger than that of the flange, so that the middle fixing seat and the bogie mounting seat are more firmly fixed.

In cooperation with the structure of the insert, as shown in fig. 5 and 6, the frame body and the composite material layer have a stepped recess portion in cooperation with the insert;

the bottom of the stepped recess is matched with the shape of the middle fixing seat;

the first step 141 of the stepped recess is matched in shape to the fixing flange.

The presence of the stepped recess allows the height of the insert to be controlled to match the height of the truck mount.

In practice, as shown in fig. 6, the second step 142 of the stepped recess is flush with the top of the fixing flange.

In practice, as shown in fig. 5 and 6, the fixing flange 132 is disposed at the middle or bottom of the side of the middle fixing base.

In practice, as shown in fig. 6, the ratio of the thickness of the central fixing seat to the thickness of the fixing flange is at least twice. The thickness of the middle fixing seat is larger, and the middle fixing seat and the bogie mounting seat can be more stably fixed through bolts and bolt holes; the thickness of the fixing flange is thin, so that the weight of the insert is small.

As an alternative embodiment, the insert is an insert of a honeycomb aluminum material.

As an alternative embodiment, the insert is an insert of a metal material with a low density and high strength, in particular, an insert of a honeycomb aluminum material.

The honeycomb aluminum material has small density and high strength, ensures that the strength of the insert is large enough, and simultaneously has small weight.

In an implementation, the composite layer is a unitary structure. The composite material layer of integrated structure for the framework is as a whole, and is more firm, simultaneously, also makes the effect of power maximum dispersion.

The materials of the frame are explained below.

In an implementation, the composite material layer is a composite material layer of a carbon fiber material.

The carbon fiber material serving as a new material has the advantages of small density, high strength, good energy absorption, good vibration absorption, excellent process and the like, and the composite material layer of the carbon fiber material also has the advantages. The application of the new material of carbon fiber material to the frame products is one of the development directions of the frame. In order to accommodate this development, improvements in the adaptability of the structure of the framework are required.

In practice, the composite layer is bonded to the outer surface of the carcass body. The layer of conformable material can be readily secured to the entire outer surface of the frame body by adhesive bonding.

In practice, the frame body is a metal frame body having a low density and a high strength. In this way the weight of the frame and thus the weight of the bogie is low.

As an alternative, the frame body is a frame body of a honeycomb aluminum material. The honeycomb aluminum material has low density and high strength, ensures that the strength of the framework main body is large enough, and simultaneously has smaller weight.

In the description of the present application and the embodiments thereof, it should be understood that the terms "top", "bottom", "height", and the like, are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present application.

In this application and its embodiments, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application and its embodiments, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the present application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A frame for a bogie, said frame being a cruciform frame comprising:

a frame rail in a longitudinal direction;

a frame cross member intersecting the frame stringers;

wherein the frame serves as a mounting base for the bogie, and the longitudinal direction is a running direction of the bogie;

the frame longitudinal beam is positioned in the middle of the frame cross beam and is used for connecting a plurality of components of the bogie;

the frame longitudinal beam is in a shape with two high ends and a low middle part;

the two ends of the framework longitudinal beam are used for being connected with a primary suspension system of the bogie;

the frame rail includes:

horizontal mounting plates which are positioned at two ends in the longitudinal direction and are horizontally arranged, wherein the horizontal mounting plates are higher than the framework cross beam;

the abdicating part is connected between the horizontal mounting plate and the framework cross beam;

the frame includes:

a rigid frame body;

a composite layer of material wrapping the entire outer surface of the carcass body;

a rigid insert, the bottom of the insert being located within the composite layer to secure the insert to the composite layer and expose the top of the insert;

wherein the top of the insert is used for mounting the bogie mounting seat;

the insert comprises:

a middle fixing seat positioned in the middle;

the fixing flange extends outwards from the middle fixing seat, and the thickness of the middle fixing seat is greater than that of the fixing flange;

the composite material layer covers the fixing flange and exposes out of the top of the middle fixing seat;

the top of the middle fixing seat is used for installing the bogie mounting seat.

2. The truss of claim 1 wherein the truss stringers increase in thickness from ends to a middle section.

3. The truss of claim 2 wherein the truss stringers have a width that increases progressively from both ends to a middle.

4. The frame of claim 3, wherein the frame is a symmetrical structure.

5. The frame of claim 3, wherein a central location of the frame rail is provided with a draft gear mounting hole for mounting a draft gear of the truck.

6. The truss of claim 5 wherein the truss body and the composite layers have a stepped recess that mates with the insert;

the bottom of the stepped recess is matched with the shape of the middle fixed seat;

the first step of the stepped recess is matched with the shape of the fixing flange.

7. The frame of claim 6, wherein the second step of the stepped recess is flush with the top of the fixed flange.

8. A framework as claimed in claim 6, wherein the fixing flange is provided at the middle or bottom of the side of the central fixing base.

9. A framework as claimed in claim 8, wherein the ratio of the thickness of the central fixing seat to the thickness of the fixing flange is at least twice.

10. The truss of claim 9 wherein the insert is an insert of a honeycomb aluminum material.