CN218877244U - Rail train, bogie and framework - Google Patents
Rail train, bogie and framework Download PDFInfo
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- CN218877244U CN218877244U CN202223140976.8U CN202223140976U CN218877244U CN 218877244 U CN218877244 U CN 218877244U CN 202223140976 U CN202223140976 U CN 202223140976U CN 218877244 U CN218877244 U CN 218877244U
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- side beam
- bogie
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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Abstract
The utility model discloses a rail train, bogie and framework, the framework includes: side beams and cross beams; the side beam comprises a first side beam end part, a side beam middle part and a second side beam end part, wherein the first side beam end part, the side beam middle part, the second side beam end part and the cross beam are all titanium alloy integral casting structural parts. The end parts of the first side beam, the middle part of the side beam, the end parts of the second side beam and the cross beam are all arranged as titanium alloy integral casting structural parts, so that the weight of each structural part can be reduced.
Description
Technical Field
The utility model relates to a bogie technical field, in particular to rail train, bogie and framework.
Background
With the development of high-speed railways in recent years, the light weight, energy conservation and environmental protection of the whole train become the direction of the technical development of the next generation of high-speed trains.
The reduction of the weight of the bogie can effectively reduce the axle load of the whole vehicle, improve the passenger capacity and reduce the energy consumption of the whole vehicle. The framework is used as the part with the largest weight proportion in the bogie, and the weight of the framework directly influences the light weight and the height of the whole vehicle.
The frame is one of the key bearing parts of the bogie, not only connects all parts of the bogie into a whole, but also bears and transmits various acting forces, and the structure, the shape and the size of the frame all meet the requirements of assembling all the parts. At present, the framework of the bogie is mainly produced by cast steel casting and tailor welding of section steel (forged steel), and the integral mass of the framework is larger due to the higher density of steel materials.
Therefore, how to reduce the weight of the bogie frame to achieve the light weight design of the whole vehicle is a problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a framework of bogie reduces the framework weight of bogie to realize whole car lightweight design. Furthermore, the utility model also provides a bogie that has above-mentioned framework and the rail train that has this bogie.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a frame for a bogie, comprising: side beams and cross beams; the side beams include a first side beam end portion, a side beam middle portion and a second side beam end portion,
the first side beam end part, the side beam middle part, the second side beam end part and the cross beam are all titanium alloy integral casting structural parts.
Preferably, in the frame of the bogie described above, the first side member end portion and the second side member end portion are symmetrical about the side member middle portion.
Preferably, in the framework of the bogie, the end portions of the first side beam and the second side beam are both straight structural sections, the middle portion of the side beam is a curved structural section with two ends bent towards the horizontal direction, and the end portions of the first side beam and the second side beam are respectively connected with two ends of the middle portion of the side beam.
Preferably, in the framework of the bogie, welding interfaces are cast and machined at two ends of the end portion of the first side beam, the end portion of the second side beam and the middle portion of the side beam, and the end portion of the first side beam, the middle portion of the side beam and the end portion of the second side beam are sequentially welded in a butt joint mode through the welding interfaces.
Preferably, in the framework of the bogie, the curved surfaces at the two ends of the middle part of the side beam are both provided with first through holes, and the first through holes are communicated with the inside of the middle part of the side beam and used for maintaining the internal structure of the middle part of the side beam;
the side member further includes a first blocking member for blocking the first through hole.
Preferably, in the frame of the bogie, the cross beam is provided with a second through hole, and the second through hole is communicated with the inside of the cross beam and is used for maintaining the internal structure of the cross beam;
the cross beam further comprises a second blocking piece for blocking the second through hole.
Preferably, in the above bogie frame, the number of the second through holes is two, and the second through holes are distributed on the side edge of the cross member perpendicular to the side member.
Preferably, in the framework of the bogie, the middle parts of the side beams and the cross beams are cast and processed with butt joints, and the butt joints in the middle parts of the side beams and the butt joints in the cross beams are welded in an aligned manner.
A bogie comprising a frame, the frame being as described in any one of the preceding claims.
A rail train comprises a bogie, wherein the bogie is the bogie.
The utility model provides a rail train's bogie's framework all sets up first curb girder tip, curb girder middle part and second curb girder tip and crossbeam into the whole cast structure of titanium alloy, can reduce the weight of each structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a frame of a bogie disclosed in an embodiment of the present invention;
fig. 2 is an exploded view of the frame of the bogie as disclosed in an embodiment of the present invention;
fig. 3 is an exploded view of a side beam of a frame of the bogie as disclosed in an embodiment of the present invention;
FIG. 4 is an exploded view of the middle of the frame side beam of the truck disclosed in an embodiment of the present invention;
fig. 5 is an exploded view of a frame beam of the bogie disclosed in an embodiment of the present invention.
Detailed Description
The utility model discloses a framework of bogie reduces the framework weight of bogie to realize whole car lightweight design. Furthermore, the utility model also provides a bogie that has above-mentioned framework and the rail train that has this bogie.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Most of the frames of the bogie of the existing high-speed motor train unit are manufactured by assembling through a plate welding process, but the frames welded by forged steel have large weight and are not beneficial to light weight design.
In view of the above problems, the present application discloses a frame of a bogie of a railway train, as shown in fig. 1, the frame of the bogie includes: the structure comprises side beams 1 and cross beams 2, wherein the side beams 1 are arranged in parallel and oppositely, the cross beams 2 are connected between the two side beams 1, and the two side beams 1 are symmetrically arranged relative to the cross beams 2.
Specifically, the side member 1 in the present application includes a first side member end portion 11, a side member center portion 12, and a second side member end portion 13. Wherein the first and second side rail end portions 11 and 13 are arranged symmetrically about the side rail middle portion 12.
The first side beam end part 11, the side beam middle part 12, the second side beam end part 13 and the cross beam 2 are all titanium alloy integrally cast structural members.
It should be noted that, in the present embodiment, when the first side rail end portion 11, the side rail middle portion 12, the second side rail end portion 13, and the cross member 2 are produced, it is necessary to cast a basic structure separately and integrally, and then machine the actual structures and dimensions of the first side rail end portion 11, the side rail middle portion 12, the second side rail end portion 13, and the cross member 2.
The titanium alloy has the characteristics of low density, high specific strength, excellent corrosion resistance, good high-temperature strength and low-temperature toughness and the like. In the application, the first side beam end part 11, the side beam middle part 12, the second side beam end part 13 and the cross beam 2 are all set to be titanium alloy integral casting structural parts, so that the weight of each structural part can be reduced.
According to the characteristics that the structure of the framework is complex and the size is large, the framework is divided into two side beams 1 and a cross beam 2 in the scheme, namely the framework has three main parts. The framework is split into three parts, so that the cross beam 2 and the side beam 1 can meet the requirement of the maximum casting size, and meanwhile, the welding seam between the cross beam 2 and the side beam 1 has good accessibility and welding permeability.
In order to reduce the complexity of the casting process of the frame side member 1 and to improve the accessibility and the weld penetration of the joint weld, the side member 1 is divided into a first side member end portion 11, a side member middle portion 12, and a second side member end portion 13 in the present embodiment.
It should be noted that the shape and size of the side member 1 and the cross member 2 can be set according to the prior art, and the connecting position of the side member 1 and the cross member 2 can refer to the connecting position of the existing side member 1 and the cross member 2, and is not particularly limited herein.
In addition, the first side member end portion 11, the side member middle portion 12 and the second side member end portion 13 are separated from each other in such a manner that the connection position of the first side member end portion 11 and the side member middle portion 12 is in a horizontal plane. In this embodiment, the first side member end 11 and the second side member end 13 are straight structural sections of the side member 1, and the side member middle 12 is a curved structural section, and the ends of the curved structural section are curved in the horizontal direction.
When connected, the first side member end 11 and the second side member end 13 are connected to the ends of the side member center 12, respectively, to form horizontal sections at both sides of the side member 1.
During production, the cross beam 2, the first side beam end part 11, the side beam middle part 12 and the second side beam end part 13 are integrally cast by titanium alloy, and the outlines and machining allowance of all mounting seats on the framework are reserved in the casting process.
In order to ensure the quality of the surface of the cast titanium alloy, a first through hole 15 is formed in the side sill center 12, and specifically, defects in the side sill center 12 can be checked through the first through hole 15 and can be treated through the first through hole 15. In addition, a second through hole 21 is formed in the cross beam 2, and specifically, defects inside the cross beam 2 can be inspected through the second through hole 21 and can be processed through the second through hole 21.
The number of the first through holes 15 is two, and the first through holes 15 are distributed on the curved surfaces of both sides of the side member middle portion 12, and the two first through holes 15 are symmetrically arranged. The first through hole 15 may be a kidney-shaped hole extending in the longitudinal direction of the side member center 12.
Of course, the first through hole 15 may have other shapes as long as it is possible to show whether or not there is a defect in the rib structure or the like inside the side sill center 12 through the hole.
The number of the second through holes 21 is two, and the second through holes 21 are distributed on the cross beam 2, and the two second through holes 21 are symmetrically arranged. As shown in fig. 1 and 5, the second through holes 21 are located on the side of the cross member 2 perpendicular to the side member 1, and the second through holes 21 correspond one-to-one with the side of the cross member 2 perpendicular to the side member 1, and the second through holes 21 are kidney-shaped holes, and the extending direction of the second through holes 21 on the cross member 2 is perpendicular to the side member 1.
The side member 1 further has a first blocking piece 14 for blocking the first through hole 15 in the side member center portion 12. The shape and size of the first blocking piece 14 are the same as those of the first through hole 15 to ensure that the first blocking piece 14 can completely block the first through hole 15, and the appearance of the side member 1 is not affected to ensure the smoothness of the surface of the side member 1.
The first plugging members 14 in this embodiment correspond to the first through holes 15 one-to-one and are welded to ensure that the complete side member middle portions 12 are obtained.
The cross member 2 also has a second closing member 22 for closing the second through hole 21. The shape and size of the second blocking piece 22 are the same as those of the second through hole 21, so that the second blocking piece 22 can completely block the second through hole 21, and no protrusion is generated on the surface of the cross beam 2, so that the smoothness of the surface of the cross beam 2 is ensured.
The second plugging pieces 22 in this scheme correspond to the second through holes 21 one by one and are welded to ensure that the complete cross beam 2 is obtained.
After the cross beam 2, the first side beam end part 11, the side beam middle part 12 and the second side beam end part 13 are obtained by casting through the processing method, the first side beam end part 11, the side beam middle part 12 and the second side beam end part 13 are welded into the side beam 1 through the welding method, and then the side beam 1 is welded with the cross beam 2.
Specifically, the connecting positions of the first side beam end 11, the side beam middle 12 and the second side beam end 13 are all cast and machined with welding interfaces, the welding interfaces of the first side beam end 11, the side beam middle 12 and the second side beam end 13 are all rectangular interfaces, and the first side beam end 11, the side beam middle 12 and the second side beam end 13 are welded in sequence and are welded in an alignment mode.
In addition, the side beam middle part 12 and the cross beam 2 are cast and machined with butt joint interfaces which are aligned and welded, the butt joint interfaces of the side beam middle part 12 and the cross beam 2 are rectangular interfaces, and the butt joint interfaces of the side beam middle part 12 and the cross beam 2 are aligned and welded.
The mounting surface of the integrally welded frame is machined to obtain a member of a desired size and shape, and the machined frame is mounted to a bogie for use.
Carrying out simulation analysis on the static strength and the fatigue strength of the framework, wherein under the working condition of abnormal load, the maximum stress of parent materials of the side beam 1 and the cross beam 2 is 348.3MPa, and the maximum stress of a welding seam is 137.2MPa; under the operating load working condition, the maximum stress of base materials of the side beam 1 and the cross beam 2 is 191.1MPa, and the maximum stress of a welding line is 85.5MPa. Through analysis, the framework strength of the titanium alloy casting meets the actual operation requirement.
In addition, the application also discloses a bogie which comprises a framework, specifically, the framework is disclosed in the embodiment, so that the bogie with the framework also has all the technical effects, and the details are not repeated.
In addition, the application also discloses a rail train, which comprises a bogie, and specifically, the bogie is the bogie disclosed in the embodiment, so that the rail train with the bogie also has all the technical effects, and further description is omitted.
As used in the present application and in the claims, the terms "a," "an," "the," and/or "the" are not intended to be exhaustive or to include the plural as well, unless the context clearly indicates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements. An element defined by the phrase "comprising a … …" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A frame for a bogie, comprising: side beams and cross beams; the side beams include a first side beam end portion, a side beam middle portion and a second side beam end portion,
the first side beam end part, the side beam middle part, the second side beam end part and the cross beam are all titanium alloy integral casting structural parts.
2. The frame for a bogie as recited in claim 1, wherein the first and second side beam ends are symmetrical about the side beam mid-portion.
3. The frame for a bogie according to claim 2, wherein said first side beam end portion and said second side beam end portion are each a straight structural section, said side beam middle portion is a curved structural section having both ends bent in a horizontal direction, and said first side beam end portion and said second side beam end portion are connected to both ends of said side beam middle portion, respectively.
4. The frame for a bogie as recited in claim 3, wherein said first side beam end portion, said second side beam end portion and said side beam middle portion are cast and machined with weld interfaces at both ends, said first side beam end portion, said side beam middle portion and said second side beam end portion being sequentially butt welded with said weld interfaces.
5. The frame of a bogie as claimed in claim 3, wherein the curved surfaces at both ends of the middle part of the side beam are each provided with a first through hole, and the first through holes are communicated with the inside of the middle part of the side beam for maintaining the internal structure of the middle part of the side beam;
the side member further includes a first blocking member for blocking the first through hole.
6. The framework of a bogie as claimed in claim 1, wherein said cross beam is provided with a second through hole communicating with the interior of said cross beam for maintenance of the internal structure of the cross beam;
the cross beam further comprises a second blocking piece for blocking the second through hole.
7. The frame for a bogie according to claim 6, wherein said second through holes are two and distributed on the side of said cross member perpendicular to said side members.
8. The frame for a bogie as recited in claim 1, wherein said side sill center section and said cross member are cast and machined with docking interfaces, said docking interfaces of said side sill center section and said docking interfaces of said cross member being welded in alignment.
9. A bogie comprising a frame, characterized in that the frame is a frame according to any one of claims 1 to 8.
10. A rail train comprising a bogie, wherein the bogie is as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223140976.8U CN218877244U (en) | 2022-11-25 | 2022-11-25 | Rail train, bogie and framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223140976.8U CN218877244U (en) | 2022-11-25 | 2022-11-25 | Rail train, bogie and framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218877244U true CN218877244U (en) | 2023-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223140976.8U Active CN218877244U (en) | 2022-11-25 | 2022-11-25 | Rail train, bogie and framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218877244U (en) |
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2022
- 2022-11-25 CN CN202223140976.8U patent/CN218877244U/en active Active
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