CN221138072U - Small underframe for multistage balanced railway flatcar - Google Patents
Small underframe for multistage balanced railway flatcar Download PDFInfo
- Publication number
- CN221138072U CN221138072U CN202322774978.0U CN202322774978U CN221138072U CN 221138072 U CN221138072 U CN 221138072U CN 202322774978 U CN202322774978 U CN 202322774978U CN 221138072 U CN221138072 U CN 221138072U
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- cover plate
- railway flatcar
- plate portion
- upper cover
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- 241001669679 Eleotris Species 0.000 claims abstract description 27
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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 small underframe for a multistage balanced railway flatcar, longitudinal beams are box-type beams with concave middle parts, the longitudinal beams comprise an upper cover plate, a lower cover plate and web plates for connecting the upper cover plate and the lower cover plate, the upper cover plate is an integrally formed plate body, the middle parts of the upper cover plates are used for installing lower core plates, end sleeper beams are arranged on two sides of the end parts of the longitudinal beams, and the middle sleeper beams are arranged at the middle positions of the longitudinal beams along the length direction. The middle part of the longitudinal beam is concave, so that an end sleeper beam of the underframe in the multistage equilibrium railway flatcar is conveniently embedded into the concave space, an upper core disc on the end sleeper beam is connected with a lower core disc on the longitudinal beam, the longitudinal height of a matching structure between a small underframe and a middle underframe of the multistage equilibrium railway flatcar is reduced, the height of the multistage equilibrium railway flatcar is reduced, the stability and safety of the multistage equilibrium railway flatcar are improved, and an upper cover plate is of an integrated structure, so that the stability of the longitudinal beam and the service life of the small underframe of the multistage equilibrium railway flatcar are prolonged.
Description
Technical Field
The utility model relates to the technical field of railway transportation, in particular to a small underframe for a multistage balanced railway flatcar.
Background
In the prior art, the multistage balanced railway flatcar generally comprises a frame, a large underframe arranged at the bottoms of two ends of the frame, a middle underframe arranged at the bottom of the large underframe, a small underframe arranged at the bottom of the middle underframe and a track running gear arranged at the bottom of the small underframe from top to bottom in sequence, wherein the small underframe is generally of a flat structure, and when the small underframe is connected with the middle underframe, the occupied space is relatively large, so that the height of the whole multistage balanced railway flatcar is relatively high, the gravity center of the multistage balanced railway flatcar body is relatively high, and the gravity center of the whole railway flatcar is further raised after goods are loaded, so that the stability and the safety of the multistage balanced railway flatcar are relatively poor.
And the longitudinal beam of the existing multistage equilibrium railway flatcar generally comprises an upper cover plate, a lower cover plate and a web plate, wherein the upper cover plate is formed by splicing a plurality of plates, so that the upper cover plate has poor overall structural strength and stability, is easy to break and has short service life.
In view of this, the present utility model has been made.
Disclosure of utility model
The utility model provides a small underframe for a multistage balanced railway flatcar.
The application provides the following technical scheme:
a small chassis for a multi-level equalization railway flatcar, comprising:
The longitudinal beam is a box-type beam with a concave middle part, the longitudinal beam comprises an upper cover plate, a lower cover plate and a web plate for connecting the upper cover plate and the lower cover plate, the upper cover plate is an integrally formed plate body, and the middle part of the upper cover plate is used for installing a lower core disc;
The end sleeper beams are arranged on two sides of the end of the longitudinal beam;
The middle sleeper beam is arranged at the middle position of the longitudinal beam along the length direction.
Further, the upper cover plate comprises a first middle flat plate part and two first side plate parts;
the two first side plate parts are arranged on two sides of the first middle flat plate part;
The first side plate part is higher than the first middle flat plate part, and one end of the first side plate part and the first middle flat plate part are in smooth transition;
and a lower core disc is arranged on the first middle flat plate part.
Further, the first side plate portion includes a first arcuate plate portion and a first end plate portion;
The first arcuate plate portion is located between the first end plate portion and the first middle plate portion;
The first arc-shaped plate part protrudes outwards to one side away from the lower cover plate;
And two ends of the first arc-shaped plate part are respectively in smooth transition with the first end flat plate part and the first middle flat plate part.
Further, the lower cover plate comprises a second middle flat plate part and two second side plate parts;
the second middle flat plate part is positioned at the bottom of the first middle flat plate part;
the second side plate part is positioned at two sides of the second middle flat plate part, and the second side plate part and the second middle flat plate part are welded and fixed.
Further, the second side plate portion includes a second arcuate plate portion and a second end flat plate portion;
The second arc plate part is welded to the second middle flat plate part, and the second end flat plate part is positioned at one side of the second arc plate, which is away from the second middle flat plate part.
Further, the thickness end face of the second arc plate portion is welded to one side surface of the second middle flat plate portion in the thickness direction.
Further, the second arc plate part protrudes outwards towards one side of the lower core disc.
Further, an upper core plate is provided on the second end plate portion.
Further, a side bearing device is arranged at the end part of the middle sleeper beam;
or the upper cover plate is provided with an integrally formed side extension plate, the middle sleeper beam is arranged at the bottom of the side extension plate, and the top of the side extension plate is provided with a side bearing device.
Further, reinforcing rib plates are arranged inside the longitudinal beams;
the reinforcing rib plates extend along the length direction of the longitudinal beam;
and the reinforcing rib plates are respectively connected with the upper cover plate and the lower cover plate of the longitudinal beam.
By adopting the technical scheme, the utility model has the following beneficial effects:
According to the application, the middle part of the longitudinal beam is recessed, so that the end sleeper beam of the underframe in the multistage equilibrium railway flatcar is conveniently embedded into the recessed space, the upper core disc on the sleeper beam is connected with the lower core disc on the longitudinal beam, and the longitudinal height of a matching structure between the small underframe and the middle underframe of the multistage equilibrium railway flatcar is reduced, so that the height of the multistage equilibrium railway flatcar is reduced, the stability and the safety of the multistage equilibrium railway flatcar are improved, and the upper cover plate is of an integrated structure, so that the stability of the longitudinal beam and the service life of the small underframe of the multistage equilibrium railway flatcar are improved.
Specific embodiments of the present utility model will be described in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
fig. 1 is a schematic structural view of a multi-stage balanced railway flatcar small chassis and a traction beam structure installation provided by an embodiment of the application;
FIG. 2 is a top view of FIG. 1 with the draft sill structure removed;
FIG. 3 is a side view of the multilevel equalizing railway flatcar undercarriage provided in FIG. 2;
Fig. 4 is a partial cross-sectional view of the multilevel equalizing railway flatcar chassis provided in fig. 2.
In the figure, 1, a longitudinal beam; 2. an end bolster; 3. side bearing means; 4. a core plate is arranged; 5. a middle sleeper beam; 6. an upper cover plate; 7. a lower cover plate; 8. a first middle plate portion; 9. a first side plate portion; 10. reinforcing rib plates; 11. a second middle flat plate portion; 12. a second side plate portion; 13. a second arcuate plate portion; 14. a second end plate portion; 91. a first arcuate plate portion; 92. a first end plate portion.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 4, the embodiment of the application provides a small underframe for a multistage equilibrium railway flatcar, which comprises a longitudinal beam 1, end sleeper beams 2 and middle sleeper beams 5, wherein the longitudinal beam 1 is a box-type beam with a concave middle part, a track travelling device is arranged below the longitudinal beam 1, the longitudinal beam 1 comprises an upper cover plate 6, a lower cover plate 7 and a web plate for connecting the upper cover plate 6 and the lower cover plate 7, the upper cover plate 6 is an integrally formed plate body, the middle part of the upper cover plate 6 is used for installing a lower core disc 4, the bottom of the middle underframe connected with the longitudinal beam 1 is provided with an upper core disc matched with the lower core disc 4, the lower core disc 4 is rotationally connected with the upper core disc, the end sleeper beams 2 are arranged on two sides of the end part of the longitudinal beam 1, the end sleeper beams 2 are used for being matched with side bearing devices of the track travelling device of the multistage equilibrium railway flatcar, and the middle sleeper beams 5 are arranged at the middle position of the longitudinal beam 1 along the length direction. The side bearing device 3 is arranged on the middle sleeper beam 5, or an integrally formed side extension plate is arranged on the upper cover plate at the position corresponding to the middle sleeper beam 5, the middle sleeper beam 5 is positioned at the bottom of the side extension plate, the side bearing device 3 is arranged at the top of the side extension plate, and the side bearing device 3 is used for being in contact with the middle underframe of the multistage equilibrium railway flatcar.
In the scheme, the middle part of the longitudinal beam 1 is sunken to form a sunken space, and when the upper core disc on the middle underframe is matched with the lower core disc 4, the thickness between the middle underframe and the small underframe can be reduced, so that the height of the multistage balanced railway flatcar is reduced, the stability and the safety of the multistage balanced railway flatcar are improved, the upper cover plate 6 is of an integrated structure, and the stability of the longitudinal beam 1 and the service life of the small underframe of the multistage balanced railway flatcar are prolonged.
Referring to fig. 3, the upper cover plate 6 includes a first middle plate portion 8 and two first side plate portions 9, the two first side plate portions 9 are partially disposed on two sides of the first middle plate portion 8, the first side plate portion 9 is higher than the first middle plate portion 8, one end of the first side plate portion 9 and the first middle plate portion 8 are in smooth transition, and the first middle plate portion 8 is provided with the lower core plate 4.
In the above scheme, the two first side plate parts 9 and the first middle plate part 8 form a concave space, so that the end sleeper beams on the middle underframe are conveniently embedded into the concave space, and the upper core plate on the end sleeper beams on the middle underframe is connected with the lower core plate 4, so that the longitudinal height between the small underframe and the middle underframe of the multistage equilibrium railway flatcar is reduced.
Referring to fig. 3, the first side plate portion 9 includes a first arc plate portion 91 and a first end plate portion 92, the first arc plate portion 91 is located between the first end plate portion 92 and the first middle plate portion 8, the first arc plate portion 91 protrudes outwards to a side away from the lower cover plate 7, two ends of the first arc plate portion 91 are respectively in smooth transition with the first end plate portion 92 and the first middle plate portion 8, the lower cover plate 7 includes a second middle plate portion 11 and two second side plate portions 12, the second middle plate portion 11 is located at the bottom of the first middle plate portion 8, the second side plate portions 12 are located at two sides of the second middle plate portion 11, and the second side plate portions 12 and the second middle plate portion 11 are welded and fixed.
In the scheme, through setting up first curb plate portion 9 on first middle part flat plate portion 8, form two arch structures, set up second curb plate portion 12 on the dull and stereotyped portion of second middle part 11, form two arch structures for longeron 1 forms four arch structures, has improved the structural strength of longeron part.
Referring to fig. 3, the second side plate portion 12 includes a second arc-shaped plate portion 13 and a second end flat plate portion 14, the second arc-shaped plate portion 13 is welded to the second middle flat plate portion 11, and the second end flat plate portion 14 is located on a side of the second arc-shaped plate facing away from the second middle flat plate portion 11.
The thickness end face of the second arc plate portion 13 is welded to one side surface of the second middle flat plate portion 11 in the thickness direction, and stability of the whole longitudinal beam 1 is improved.
The second arc plate part 13 protrudes outwards towards one side of the lower core plate 4, and the second arc plate part 13 of the lower cover plate 7 is arranged to be of an arc structure protruding upwards, so that the strength of the supporting structure is improved, a larger installation space can be provided for the bogie of the track traveling device, and meanwhile, the interference between the wheel axle of the bogie and the second arc plate part 13 of the lower cover plate 7 is avoided.
The second end flat plate part 14 is provided with an upper core disc, so that the longitudinal beam 1 and a lower core disc on a bogie of the track running device can be conveniently installed.
The side bearing device can be arranged at the position of the upper cover plate, where the middle sleeper beam 5 is arranged, and is supported on the middle underframe of the multistage equilibrium railway flatcar, so that the friction interference between the middle sleeper beam 5 and the middle underframe of the multistage equilibrium railway flatcar is avoided.
The inside deep floor 10 that is provided with of longeron 1, deep floor 10 extend along the length direction of longeron 1, and upper cover plate 6 and the lower cover plate 7 of longeron 1 are connected respectively to deep floor 10 for upper cover plate 6, lower cover plate 7 and deep floor 10 form the I-shaped structure, have improved the stability of longeron 1 structure.
Through two first curb plate portions 9 that set up and dull and stereotyped portion 8 in first middle part form a indent space, be convenient for in the last core dish embedding indent space on the chassis of multistage balanced railway flatcar cooperate with lower core dish 4, reduced the vertical height between the little chassis of multistage balanced railway flatcar and the well chassis to reduce the height of multistage balanced railway flatcar, improve the stationarity and the security of multistage balanced railway flatcar, and upper cover plate 6 is integrated into one piece structure, improved the stability of longeron 1 and the life of the little chassis of multistage balanced railway flatcar.
The foregoing description is only illustrative of the preferred embodiment of the present utility model, and is not to be construed as limiting the utility model, but is to be construed as limiting the utility model to any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present utility model without departing from the scope of the utility model.
Claims (10)
1. A small chassis for a multilevel equalization railway flatcar, comprising:
The longitudinal beam is a box-type beam with a concave middle part, the longitudinal beam comprises an upper cover plate, a lower cover plate and a web plate for connecting the upper cover plate and the lower cover plate, the upper cover plate is an integrally formed plate body, and the middle part of the upper cover plate is used for installing a lower core disc;
The end sleeper beams are arranged on two sides of the end of the longitudinal beam;
The middle sleeper beam is arranged at the middle position of the longitudinal beam along the length direction.
2. The small undercarriage for a multilevel equalizing railway flatcar of claim 1, wherein the upper cover plate comprises a first middle flat plate portion and two first side plate portions;
the two first side plate parts are arranged on two sides of the first middle flat plate part;
The first side plate part is higher than the first middle flat plate part, and one end of the first side plate part and the first middle flat plate part are in smooth transition;
and a lower core disc is arranged on the first middle flat plate part.
3. The small chassis for a multi-level balancing railway flatcar of claim 2, wherein the first side plate portion comprises a first arc plate portion and a first end plate portion;
The first arcuate plate portion is located between the first end plate portion and the first middle plate portion;
The first arc-shaped plate part protrudes outwards to one side away from the lower cover plate;
And two ends of the first arc-shaped plate part are respectively in smooth transition with the first end flat plate part and the first middle flat plate part.
4. The small chassis for a multi-level balancing railway flatcar of claim 3, wherein the lower cover plate comprises a second middle flat plate portion and two second side plate portions;
the second middle flat plate part is positioned at the bottom of the first middle flat plate part;
the second side plate part is positioned at two sides of the second middle flat plate part, and the second side plate part and the second middle flat plate part are welded and fixed.
5. The small chassis for a multi-level balancing railway flatcar of claim 4, wherein the second side plate portion comprises a second arc plate portion and a second end flat plate portion;
the second arc plate part is welded to the second middle flat plate part, and the second end flat plate part is positioned on one side of the second arc plate part, which is away from the second middle flat plate part.
6. The small chassis for a multistage equilibrium railway flatcar of claim 5, wherein a thickness end face of the second arc-shaped plate portion is welded to one side surface of the second middle flat plate portion in the thickness direction.
7. The small chassis for a multilevel equalizing railway flatcar of claim 5, wherein the second arc-shaped plate portion protrudes toward the lower core plate side.
8. The small chassis for a multilevel equalizing railway flatcar of claim 5, wherein an upper core is provided on the second end plate portion.
9. The small undercarriage for a multilevel equalizing railway flatcar of any one of claims 1-8, wherein the end of the middle sleeper beam is provided with a side bearing device;
or the upper cover plate is provided with an integrally formed side extension plate, the middle sleeper beam is arranged at the bottom of the side extension plate, and the top of the side extension plate is provided with a side bearing device.
10. The small chassis for a multistage equilibrium railway flatcar of any one of claims 1-8, characterized in that inside the stringers there are reinforcing ribs;
the reinforcing rib plates extend along the length direction of the longitudinal beam;
and the reinforcing rib plates are respectively connected with the upper cover plate and the lower cover plate of the longitudinal beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322774978.0U CN221138072U (en) | 2023-10-17 | 2023-10-17 | Small underframe for multistage balanced railway flatcar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322774978.0U CN221138072U (en) | 2023-10-17 | 2023-10-17 | Small underframe for multistage balanced railway flatcar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221138072U true CN221138072U (en) | 2024-06-14 |
Family
ID=91430749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322774978.0U Active CN221138072U (en) | 2023-10-17 | 2023-10-17 | Small underframe for multistage balanced railway flatcar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221138072U (en) |
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2023
- 2023-10-17 CN CN202322774978.0U patent/CN221138072U/en active Active
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