CN107554546B - Bogie framework and bogie with same - Google Patents
Bogie framework and bogie with same Download PDFInfo
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- CN107554546B CN107554546B CN201710852362.7A CN201710852362A CN107554546B CN 107554546 B CN107554546 B CN 107554546B CN 201710852362 A CN201710852362 A CN 201710852362A CN 107554546 B CN107554546 B CN 107554546B
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Abstract
The invention discloses a bogie frame, which comprises two side beams and a cross beam fixedly arranged between the two side beams, wherein the cross beam and the side beams are box body beams, the cross beam is H-shaped, and connecting parts at two ends of the cross beam are respectively obliquely folded towards the transverse center line of the cross beam; the inner side of the side beam is provided with a socket formed by an upper cover plate and a lower cover plate; the upper cover plate of each connecting part of the cross beam is mutually butted with the part of the upper cover plate of the corresponding side beam, which forms the bell socket, and the lower cover plate of each connecting part of the cross beam is mutually butted with the part of the lower cover plate of the corresponding side beam, which forms the bell socket; the outer vertical plate of each connecting part of the cross beam exceeds the end parts of the upper cover plate and the lower cover plate of the cross beam and is inserted into the side beam from the corresponding socket to be connected with the side beam. The bogie frame is convenient for welding connection during assembly, the welding connection is high in reliability and good in stability, and sufficient mounting space is provided for other components in the inner side area of the side beam. The invention also discloses a bogie comprising the bogie frame.
Description
Technical Field
The invention relates to the technical field of bogies, in particular to a bogie frame. The invention also relates to a bogie provided with the bogie frame.
Background
In rail vehicles, the bogie is an important component thereof, and the bogie is a direct receiver of vehicle traction force, braking force, vehicle load and rail external force, and plays an important role in the running quality of the vehicle and the safety of passenger transportation.
In the framework of the bogie, the cross beams and the side beams are main bearing parts, the cross beams are transversely welded between the side beams and are connected with the left side beam and the right side beam into a rigid whole, the cross beams can be divided into round tubular cross beams and box type cross beams formed by welding plates, when the round tubular cross beams are adopted, two parallel cross beams are generally required to be arranged, when the box type cross beams are adopted, the cross beams can be integral cross beams, and the structural strength of the cross beams and the side beams and the connection strength between the cross beams and the side beams have great influence on the whole strength of the bogie framework.
At present, the two ends of the box-type cross beam are generally connected with the side beams through arranging transition connecting pieces. When the connection mode is used for connection, the welding quality is low, the connection reliability is poor, the connection is easy to damage, the manufacturability is poor, and the defects of large occupied space, large processing amount, inconvenience in installation and the like exist.
In addition, the secondary vertical shock absorbers in the existing bogie are generally arranged between the side beams and the sleeper beam and positioned outside the side beams, the distance from the center line of the bogie body is far, the up-down stroke generated by the rotation of the bogie body is large during the operation, the service life of the secondary vertical shock absorbers can be influenced, and the secondary vertical shock absorbers are even damaged in severe cases.
Therefore, how to overcome the defects of the existing bogie is a technical problem which needs to be solved by the technical personnel in the field at present.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a bogie frame which not only facilitates welding connection during assembling, but also has high reliability and stability of welding connection, and also provides sufficient installation space for other components in the inner region of the side member, thereby improving flexibility of design of the bogie frame. Another object of the present invention is to provide a bogie including the bogie frame described above, which not only facilitates the welding connection during the assembling, but also has high reliability and stability of the welding connection, and also provides sufficient installation space for other components in the inner region of the side sill, thereby improving the flexibility of the design of the bogie frame.
In order to achieve the purpose, the invention provides the following technical scheme:
a bogie frame comprises two side beams and a cross beam fixedly arranged between the two side beams, wherein the cross beam and the side beams are box body beams, the cross beam is H-shaped, and connecting parts at two ends of the cross beam are respectively obliquely folded towards the transverse center line of the cross beam; the inner side of the side beam is provided with a socket formed by an upper cover plate and a lower cover plate; the upper cover plate of each connecting part of the cross beam is mutually butted with the part, which forms the bell socket, of the upper cover plate of the corresponding side beam, and the lower cover plate of each connecting part of the cross beam is mutually butted with the part, which forms the bell socket, of the lower cover plate of the corresponding side beam; and the outer vertical plates of the connecting parts of the cross beams exceed the end parts of the upper cover plate and the lower cover plate of the cross beams and are inserted into the side beams from the corresponding sockets to be connected with the side beams.
Preferably, the upper cover plate and the lower cover plate at the corresponding connection part of the cross beam on the side beam extend inwards to form the sockets corresponding to the connection parts of the cross beam.
Preferably, an end surface of a position of the upper cover plate of the side beam where the socket is formed is fitted with an end surface of the upper cover plate of the corresponding cross beam connecting portion, and an end surface of a position of the lower cover plate of the side beam where the socket is formed is fitted with an end surface of the lower cover plate of the corresponding cross beam connecting portion.
Preferably, the outer side vertical plate of the connecting part is an inwards concave arc-shaped plate.
Preferably, the outer vertical plate of the connecting part is formed by a first straight plate section inserted into the corresponding socket, a second straight plate section extending from the middle part of the cross beam and converging obliquely towards the transverse center line of the cross beam, and a transition arc-shaped plate section arranged between the first straight plate section and the second straight plate section.
Preferably, the outer vertical plate of each connecting part of the cross beam is inserted into the side beam through the corresponding socket and is simultaneously welded with the upper cover plate, the lower cover plate and the vertical plate of the side beam.
Preferably, the side beam is a U-shaped structural beam with a concave middle part, and the socket is arranged at the concave position of the side beam.
Preferably, the outer side of the outer side vertical plate of the beam connecting part is provided with a secondary vertical shock absorber seat, and the position on the sleeper beam corresponding to the position right above the secondary vertical shock absorber seat is provided with a connecting part for connecting the top of the secondary vertical shock absorber.
Preferably, the upper cover plate of each connecting part of the cross beam and the part of the upper cover plate of the corresponding side beam, which forms the socket, are positioned on the same plane and are in butt joint with each other, and the lower cover plate of each connecting part of the cross beam and the part of the lower cover plate of the corresponding side beam, which forms the socket, are positioned on the same plane and are in butt joint with each other.
A bogie comprising a bogie frame, the bogie frame being as claimed in any one of the preceding claims.
In the bogie frame provided by the invention, the cross beam is directly connected with the side beam, and a transition connecting piece in the prior art is not required to be arranged, so that the bogie frame is convenient for welding connection during assembly, and the welding connection has high reliability and good stability; because the connecting parts at the two ends of the cross beam are respectively obliquely folded towards the transverse center line of the cross beam, enough mounting space can be provided for other parts in the inner side area of the side beam, and the design flexibility of the bogie frame is improved; the transverse beams and the side beams are arranged to be box body beams, so that the whole weight of the framework is favorably reduced, and materials are saved.
The bogie comprising the bogie frame provided by the invention has the advantages that the bogie frame is convenient for welding connection during assembly, the welding connection is high in reliability and good in stability, and sufficient installation space can be provided for other components in the inner side area of the side beam, so that the flexibility of the design of the bogie frame is improved.
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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a front view of a truck frame for a motor vehicle according to the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a rear view of a truck frame for a motor vehicle according to the present invention;
FIG. 4 is a top plan view of a railcar truck frame provided in accordance with the present invention;
FIG. 5 is a front view of a truck frame for a motor vehicle provided by the present invention;
FIG. 6 is a side view of a railcar truck frame provided in accordance with the present invention;
FIG. 7 is a schematic view of a railcar truck according to the present invention;
FIG. 8 is a front view of a trailer truck frame according to the present invention;
fig. 9 is a schematic structural view of a trailer bogie provided by the present invention.
In fig. 1-9, 1-crossbeam, 2-side beam, 21-socket, 3-secondary vertical damper seat, 4-sleeper beam, and 5-secondary vertical damper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a bogie frame which is not only convenient for welding connection during assembly, but also has high reliability and good stability of welding connection, and can provide enough installation space for other components in the inner area of the side beam, thereby improving the flexibility of the design of the bogie frame. Another core of the present invention is to provide a bogie including the bogie frame, which not only facilitates welding connection during assembling, but also has high reliability and stability of welding connection, and can provide sufficient installation space for other components in the inner region of the side sill, thereby improving flexibility of design of the bogie frame.
Referring to fig. 1 to 9, fig. 1 is a front view of a bogie frame of a motor car according to the present invention; FIG. 2 is an enlarged view taken at A in FIG. 1; fig. 3 to 6 are a rear view, a top view, a front view and a side view of a bogie frame for a motor vehicle according to the present invention; FIG. 7 is a schematic view of a railcar truck according to the present invention; FIG. 8 is a front view of a trailer truck frame according to the present invention; fig. 9 is a schematic structural view of a trailer bogie provided by the present invention.
The bogie frame provided by the invention comprises two side beams 2 and a cross beam 1 fixedly arranged between the two side beams 2, wherein the cross beam 1 and the side beams 2 can form an H-shaped structure. The crossbeam 1 and the side beam 2 are box body beams, and the peripheral walls of the crossbeam 1 and the side beam 2 are surrounded by an upper cover plate, a lower cover plate and a vertical plate.
Crossbeam 1 is the H shape, the connecting portion at crossbeam 1's both ends draw in to the horizontal central line slant of crossbeam 1 respectively, namely in the vehicle width direction, the both ends of crossbeam 1 are equallyd divide and are formed two branches that are used for connecting curb girder 2 respectively, because crossbeam 1 is the H shape, all can include the inside riser that is close to the horizontal central line setting of crossbeam 1 and the outside riser of keeping away from the horizontal central line setting of crossbeam 1 in the riser of every branch in crossbeam 1 each connecting portion, the setting of inside riser can improve the bulk strength of bogie framework, and simultaneously, the middle part of crossbeam 1 each connecting portion and curb girder 2 forms the opening shape, this opening part can provide sufficient space in order to realize this inside riser and crossbeam 1, the upper and lower cover plate's of curb girder 2 welding.
The side member 2 is provided on the inside thereof with a socket 21 formed by an upper cover and a lower cover of the side member 2. The upper cover plate of each connecting part of the cross beam 1 is butted with the part of the upper cover plate of the corresponding side beam 2, which forms the socket 21, and the lower cover plate of each connecting part of the cross beam 1 is butted with the part of the lower cover plate of the corresponding side beam 2, which forms the socket 21.
The outer vertical plates of the connecting parts of the cross beam 1 exceed the end parts of the upper cover plate and the lower cover plate of the cross beam 1, namely, the outer vertical plates of the cross beam 1 extend out of the upper cover plate and the lower cover plate in the vehicle width direction. The end of the outer vertical plate of each connecting part of the cross beam 1 is inserted into the side beam 2 from the corresponding socket 21 to be connected with the side beam 2.
The cross beam 1 and the side beam 2 can be fixedly connected in a welding mode. The cross beams 1 and the side beams 2 of the bogie frame of the motor vehicle can be arranged in the above-mentioned manner, and the cross beams 1 and the side beams 2 of the bogie frame of the trailer can also be arranged in the above-mentioned manner.
In the bogie frame, the cross beam 1 and the side beam 2 are directly connected without arranging a transition connecting piece in the prior art, so that the bogie frame is convenient for welding connection during assembly, and the welding connection has high reliability and good stability; because the connecting parts at the two ends of the cross beam 1 are respectively obliquely folded towards the transverse center line of the cross beam 1, enough mounting space can be provided for other components in the inner side area of the side beam 2, and the design flexibility of the bogie frame is improved; the transverse beam 1 and the side beam 2 are arranged to be box body beams, so that the whole weight of the framework is favorably reduced, and materials are saved.
In the above embodiment, the upper cover and the lower cover at the connection part of the side beam 2 corresponding to the cross beam 1 extend inward to form the socket 21 corresponding to each connection part of the cross beam 1. That is, at the position where the socket 21 is provided in one side member 2, the upper cover and the lower cover of the side member 2 are extended in the direction toward the other side member 2, thereby facilitating the assembling process between the cross member 1 and the side member 2, and at the same time, a part of the structure is separately extended from the upper cover of the side member 2 to connect the cross member 1, thereby preventing the cross member 1 from occupying the space on the side member 2 for connecting other components, and thus preventing other parts of the side member 2 from interfering with the assembling process.
In the above embodiments, the end surface of the upper cover of the side member 2 at the position where the socket 21 is formed is fitted to the end surface of the upper cover of the connecting portion of the corresponding cross member 1, and the end surface of the lower cover of the side member 2 at the position where the socket 21 is formed is fitted to the end surface of the lower cover of the connecting portion of the corresponding cross member 1. The matching means that the shapes are corresponding and the two can be completely and seamlessly joined, the end surfaces of the upper cover plate and the lower cover plate of each connecting part of the cross beam 1 are flat surfaces, and the end surfaces of the upper cover plate and the lower cover plate on the side beam 2, which form the bell and spigot 21, are also flat surfaces with the same area and corresponding shapes and inclination angles. The arrangement mode can ensure that the edge of the joint of the cross beam 1 and the side beam 2 is smooth, the connection is reliable, and the material saving is facilitated.
In the above embodiments, the outer side vertical plate of the connecting portion may be an inward concave arc plate, where the inward concave refers to a concave toward the transverse center line of the cross beam 1, so as to further expand the available space in the bogie frame, and at the same time, reduce the stress concentration at the joint of the cross beam 1 and the side beam 2, and improve the connecting strength. Wherein, the connecting part of the crossbeam 1 can be designed with variable cross section so as to reduce the stress concentration at the connecting part of the crossbeam 1 and the side beam 2.
Or, the outer vertical plate of the connecting portion may be formed by a first straight plate section inserted into the corresponding socket 21, a second straight plate section extending from the middle of the cross beam 1 and converging obliquely toward the transverse center line of the cross beam 1, and a transition arc plate section disposed between the first straight plate section and the second straight plate section. Namely, the outer vertical plate of the connecting part of the cross beam 1 is sequentially provided with a second straight plate section, a transition arc-shaped plate section and a first straight plate section from the middle part to the outside along the direction of the vehicle width. This arrangement facilitates the processing, and particularly, the orientation of the connection can be easily determined by arranging the portion inserted into the side member 2 in a straight plate shape.
Specifically, the outer side vertical plate of the connecting portion of the cross beam 1 may be an integrated piece, and include a second straight plate section, a transition arc-shaped plate section and a first straight plate section, or the outer side vertical plate of the connecting portion of the cross beam 1 may be connected and formed in a sectional welding manner.
In the above embodiments, the outer vertical plate of each connecting portion of the cross beam 1 can be inserted into the side beam 2 through the corresponding socket 21, and is welded with the upper cover plate, the lower cover plate and the vertical plate of the side beam 2 at the same time, so as to ensure the reliability of the connection between the cross beam 1 and the side beam 2. Of course, the length of the outer vertical plate of the connecting part of the cross beam 1 can be determined in other ways according to actual conditions.
In the above embodiments, the side beam 2 may be a U-shaped structural beam with a concave central portion, the concave structure may provide a mounting structure for each component, and the socket 21 may be disposed at a concave position of the side beam 2. The arrangement mode can ensure the integral strength of the bogie frame, and simultaneously increases the length value of the joint of the cross beam 1 and the side beam 2 in the vehicle length direction as much as possible, and ensures the connection area of the cross beam 1 and the side beam 2.
In the above embodiments, the outer side of the outer vertical plate of the connecting portion of the cross beam 1 is provided with the secondary vertical damper seat 3, and the position on the bolster 4 corresponding to the position right above the secondary vertical damper seat 3 may be provided with a connecting portion for connecting the top of the secondary vertical damper 5. The arrangement mode can fully utilize the available space in the bogie frame and reduce the rotation stroke while ensuring the vibration reduction effect. Specifically, two ends of the cross member 1 in the vehicle width direction may be provided with one secondary vertical damper seat 3, respectively.
In the above embodiments, the cross beam 1 and the side beam 2 may be specifically formed by assembling and welding castings. Wherein, a certain number of clapboards can be arranged in the cross beam 1 and the side beam 2 according to the requirement so as to further increase the torsion resistance of the framework. In addition, the clapboard can be provided with lightening holes, so that the strength requirement of the bogie frame is met, the whole weight of the bogie frame is lightened as much as possible, and materials are saved.
In the above embodiments, the upper cover of each connecting portion of the cross member 1 and the portion of the upper cover of the corresponding side member 2 forming the socket 21 may be in the same plane and butted against each other, and the lower cover of each connecting portion of the cross member 1 and the portion of the lower cover of the corresponding side member 2 forming the socket 21 may be in the same plane and butted against each other. The connection position of the cross beam 1 and the side beam 2 is a plane, and other components can be conveniently arranged on the plane. Of course, the upper cover of each connection portion of the cross member 1 and the portion of the upper cover of the corresponding side member 2 forming the socket 21 may have a certain height difference, and the lower cover of each connection portion of the cross member 1 and the portion of the lower cover of the corresponding side member 2 forming the socket 21 may have a certain height difference.
In addition to the bogie frame, the invention also provides a bogie comprising the bogie frame disclosed in the above embodiment, wherein the bogie frame is not only convenient for welding connection during assembly, but also has high reliability and good stability of welding connection, and can provide enough installation space for other components in the inner area of the side beam, thereby improving the flexibility of the design of the bogie frame. The structure of other parts of the bogie is referred to the prior art, and is not described in detail herein.
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 bogie frame and the bogie having the same according to the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. A bogie frame comprises two side beams (2) and a cross beam (1) fixedly arranged between the two side beams (2), wherein the cross beam (1) and the side beams (2) are box beams, and the bogie frame is characterized in that the cross beam (1) is H-shaped, and connecting parts at two ends of the cross beam are obliquely folded towards the transverse center line of the cross beam respectively; the inner side of the side beam (2) is provided with a socket (21) formed by an upper cover plate and a lower cover plate; the upper cover plate of each connecting part of the cross beam (1) is mutually butted with the part of the upper cover plate of the corresponding side beam (2) for forming the socket (21), and the lower cover plate of each connecting part of the cross beam (1) is mutually butted with the part of the lower cover plate of the corresponding side beam (2) for forming the socket (21); the outer vertical plate of each connecting part of the cross beam (1) exceeds the end parts of the upper cover plate and the lower cover plate of the cross beam and is inserted into the side beam (2) from the corresponding socket opening (21) to be connected with the side beam (2) mutually;
each connecting part comprises two branches, the vertical plate of each branch comprises an inner vertical plate close to the transverse center line of the cross beam (1) and an outer vertical plate far away from the transverse center line of the cross beam (1), the upper cover plate of each connecting part is arranged above the corresponding vertical plate of the branch, the lower cover plate of each connecting part is arranged on the lower side of the corresponding vertical plate of the branch, and each connecting part of the cross beam (1) and the middle part of the side beam (2) form an opening shape;
the outer vertical plate of each connecting part of the cross beam (1) is inserted into the side beam (2) through the corresponding bell and spigot (21) and is simultaneously welded with the upper cover plate, the lower cover plate and the vertical plate of the side beam (2);
the outer side of the outer side vertical plate of the connecting part of the cross beam (1) is provided with a secondary vertical shock absorber seat (3), and a connecting part for connecting the top of the secondary vertical shock absorber (5) is arranged on the sleeper beam (4) corresponding to the position right above the secondary vertical shock absorber seat (3).
2. The bogie frame according to claim 1, wherein the upper and lower caps of the side beams (2) at the connection with the cross beam (1) extend inwardly to form the sockets (21) corresponding to the respective connections of the cross beam (1).
3. The bogie frame according to claim 2 wherein the end surface of the upper deck of the side beam (2) where the socket (21) is formed is fitted to the corresponding upper deck end surface of the cross beam (1) connecting portion, and the end surface of the lower deck of the side beam (2) where the socket (21) is formed is fitted to the corresponding lower deck end surface of the cross beam (1) connecting portion.
4. The truck frame of claim 3 wherein the outboard riser of the coupler is an inwardly concave arcuate plate.
5. The bogie frame according to claim 3 wherein the outboard risers of the coupler are formed by a first straight section inserted into the corresponding sockets (21), a second straight section extending from the middle of the beam (1) and converging obliquely towards its transverse centerline, and a transition arc section provided between the first and second straight sections.
6. The bogie frame according to claim 1, wherein the side beams (2) are U-shaped structural beams with a concave central portion, and the sockets (21) are provided at concave positions of the side beams (2).
7. The bogie frame according to any one of claims 1 to 6 wherein the upper cover of each connection portion of the cross member (1) is flush with and butted against the portion of the upper cover of the corresponding side member (2) where the socket (21) is formed, and the lower cover of each connection portion of the cross member (1) is flush with and butted against the portion of the lower cover of the corresponding side member (2) where the socket (21) is formed.
8. A bogie comprising a bogie frame, characterized in that the bogie frame is a bogie frame according to any one of claims 1 to 7.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852362.7A CN107554546B (en) | 2017-09-19 | 2017-09-19 | Bogie framework and bogie with same |
| PCT/CN2017/119258 WO2019056641A1 (en) | 2017-09-19 | 2017-12-28 | Bogie framework and bogie having same |
| EP17926005.4A EP3620345A4 (en) | 2017-09-19 | 2017-12-28 | Bogie framework and bogie having same |
| RU2018110815A RU2684830C1 (en) | 2017-09-19 | 2018-03-27 | Bogie frame and having such a frame bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852362.7A CN107554546B (en) | 2017-09-19 | 2017-09-19 | Bogie framework and bogie with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107554546A CN107554546A (en) | 2018-01-09 |
| CN107554546B true CN107554546B (en) | 2020-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710852362.7A Active CN107554546B (en) | 2017-09-19 | 2017-09-19 | Bogie framework and bogie with same |
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| CN (1) | CN107554546B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112519827B (en) * | 2020-12-09 | 2022-07-26 | 中车唐山机车车辆有限公司 | Bogie crossbeam, bogie and rail vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490754A (en) * | 2011-12-23 | 2012-06-13 | 济南轨道交通装备有限责任公司 | Bogie framework for high-speed rail wagon |
| CN104843025A (en) * | 2015-04-29 | 2015-08-19 | 长春轨道客车股份有限公司 | Standard motor train unit power bogie frame |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202413832U (en) * | 2011-12-23 | 2012-09-05 | 济南轨道交通装备有限责任公司 | High-speed rail wagon bogie framework |
| AT516923A3 (en) * | 2015-03-03 | 2018-01-15 | Siemens Ag Oesterreich | Side member and cross member for a chassis frame of a rail vehicle |
| CN104890693B (en) * | 2015-06-29 | 2017-06-23 | 南车株洲电力机车有限公司 | A kind of rail vehicle |
| CN205220689U (en) * | 2015-12-17 | 2016-05-11 | 唐山轨道客车有限责任公司 | Motor car bogie frame and motor car bogie |
| CN205930741U (en) * | 2016-08-11 | 2017-02-08 | 中车唐山机车车辆有限公司 | Bogie and rail vehicle |
| CN207225371U (en) * | 2017-09-19 | 2018-04-13 | 中车长春轨道客车股份有限公司 | A kind of bogie frame and the bogie with the bogie frame |
-
2017
- 2017-09-19 CN CN201710852362.7A patent/CN107554546B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490754A (en) * | 2011-12-23 | 2012-06-13 | 济南轨道交通装备有限责任公司 | Bogie framework for high-speed rail wagon |
| CN104843025A (en) * | 2015-04-29 | 2015-08-19 | 长春轨道客车股份有限公司 | Standard motor train unit power bogie frame |
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| CN107554546A (en) | 2018-01-09 |
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