Chassis component of railway vehicle, and railway vehicle

Patent metadata

Field	Value
Publication number	US-11225270-B2
Application number	US-201816197549-A
Country	US
Kind code	B2
Filing date	Nov 21, 2018
Priority date	Sep 6, 2018
Publication date	Jan 18, 2022
Grant date	Jan 18, 2022

Abstract

Some embodiments of the present disclosure provide a chassis component of a railway vehicle, and a railway vehicle. The chassis component includes two lower boundary beams provided at an interval and a sleeper beam provided between the two lower boundary beams. The sleeper beam includes: a web structure; a center pin, connected with a bogie of a railway vehicle; and a mounting frame, connected with the web structure, the center pin being provided on the mounting frame, the mounting frame including a plurality of vertical plates, and the plurality of vertical plates being provided at an interval along an outer wall surface of the center pin. The technical solution of the present disclosure can solve the problem in the related art of insufficient connecting strength of a center pin and a web structure of a sleeper beam.

First claim

What is claimed is:

1. A chassis component of a railway vehicle, comprising two lower boundary beams provided at an interval and a sleeper beam provided between the two lower boundary beams, the sleeper beam comprising:
a web structure;
a center pin, connected with a bogie of a railway vehicle; and
a mounting frame, connected with the web structure, the center pin being provided on the mounting frame, the mounting frame comprising a plurality of vertical plates, and the plurality of vertical plates being provided at an interval along an outer wall surface of the center pin, the plurality of vertical plates is provided on the outer wall surface of the center pin in an X shape, each of the plurality of vertical plates being welded to the outer wall surface of the center pin.

2. The chassis component as claimed in claim 1 , wherein the sleeper beam comprises two web structures, the mounting frame being located between the two web structures.

3. The chassis component as claimed in claim 2 , wherein the sleeper beam further comprises a plurality of rib plates, each of the two web structures comprises two webs provided at an interval, the plurality of rib plates is provided between the two webs at an interval, and the web structure is connected with at least one of the plurality of vertical plates of the mounting frame through at least one of the plurality of rib plates.

4. The chassis component as claimed in claim 3 , wherein the sleeper beam further comprises:
an upper cover plate, covering the two webs, the upper cover plate being provided with a plurality of through holes, at least one of the rib plates being provided with a bulge, and the bulge matching a corresponding through hole in the plurality of through holes; and
a lower cover plate, provided at a lower part of each of the two webs, the lower cover plate being fixedly connected with each of the plurality of rib plates.

5. The chassis component as claimed in claim 3 , wherein the sleeper beam further comprises two inner boundary beams, the two inner boundary beams being provided at an interval, the two inner boundary beams being in one-to-one corresponding connection with the two lower boundary beams, and each of the inner boundary beams being connected with the two webs of at least one of the web structures.

6. The chassis component as claimed in claim 1 , further comprising: a plurality of cross beam components provided between the two lower boundary beams, the plurality of cross beam components being provided at an interval along a length direction of each of the two lower boundary beams, at least one of the two lower boundary beams being provided with a connecting seat, and at least one end of each of the plurality of cross beam components being connected with a corresponding lower boundary beam in the two lower boundary beams through the connecting seat.

7. The chassis component as claimed in claim 6 , wherein each of the two lower boundary beams comprises a first flat plate, a vertical plate and a second flat plate connected in sequence, a width size L 1 of the first flat plate is greater than a width size L 2 of the second flat plate, and the connecting seat comprises:
a first connecting plate, connected with the vertical plate;
a second connecting plate, forming an included angle with the first connecting plate, the second connecting plate being connected with a corresponding cross beam component in the plurality of cross beam components; and
a third connecting plate, forming an included angle with the first connecting plate and the second connecting plate respectively, the third connecting plate being connected with the first flat plate or the second flat plate.

8. The chassis component as claimed in claim 7 , wherein the first connecting plate is welded to the vertical plate and the third connecting plate is welded to the first flat plate, or, the first connecting plate is welded to the vertical plate and the third connecting plate is welded to the second flat plate.

9. The chassis component as claimed in claim 8 , wherein at least one cross beam component in the plurality of cross beam components comprises:
a first cross beam, two opposite ends of the first cross beam being correspondingly connected with the two lower boundary beams respectively; and
a second cross beam, the second cross beam and the first cross beam being correspondingly provided in a height direction of each of the two lower boundary beams.

10. The chassis component as claimed in claim 9 , wherein at least one of the two lower boundary beams is provided with two connecting seats, and the first cross beam and the second cross beam are connected with the lower boundary beam through corresponding connecting seats respectively.

11. The chassis component as claimed in claim 6 , wherein in a height direction of each of the two lower boundary beams, at least one of the plurality of cross beam components comprises a first cross beam and a second cross beam provided below the first cross beam, the first cross beam and the second cross beam form a mounting cavity, and a part of a floor of the railway vehicle is inserted in the mounting cavity.

12. The chassis component as claimed in claim 11 , wherein the first cross beam comprises a U-shaped beam and a connecting beam connected with the U-shaped beam, the connecting beam being connected with the floor; and the second cross beam comprises a first horizontal beam, a vertical beam and a second horizontal beam connected in sequence, the first horizontal beam and the second horizontal beam being located on two sides of the vertical beam respectively, and the first horizontal beam being connected with a side, away from the first cross beam, of the floor.

13. The chassis component as claimed in claim 7 , further comprising:
a middle beam, provided between the two lower boundary beams, the middle beam extending along the length direction of each of the two lower boundary beams, and a cross section of the middle beam being Z-shaped in a width direction of the railway vehicle.

14. The chassis component as claimed in claim 13 , wherein the middle beam comprises a first horizontal segment, a vertical segment and a second horizontal segment connected in sequence, the first horizontal segment and the second horizontal segment being provided on two opposite sides of the vertical segment respectively.

15. The chassis component as claimed in claim 14 , wherein the railway vehicle further comprises a floor, the floor covering the middle beam, and the floor being connected with each of the two lower boundary beams; and the chassis component further comprises a cover plate, the cover plate being connected with the middle beam, the middle beam being located between the floor and the cover plate, and the floor, the cover plate and the middle beam jointly enclosing a main air duct of the railway vehicle.

16. The chassis component as claimed in claim 1 , further comprising:
a pipe passage structure, one side, facing a vehicle body of the railway vehicle, of at least one of the two lower boundary beams being provided with the pipe passage structure, wherein the pipe passage structure is a pipe passage channel provided on the lower boundary beam.

17. The chassis component as claimed in claim 16 , further comprising a first reinforcing member, wherein the first reinforcing member is located on one side, away from the vehicle body, of the pipe passage structure, and the first reinforcing member is connected with a part of a corresponding lower boundary beam in the two lower boundary beams.

18. The chassis

Assignees

• Crrc Qingdao Sifang Co Ltd

Inventors

• Wang Yu
• Tian Aiqin
• Yu Haiyang
• Liu Longxi
• Zhang Chenggong

Classifications

• B61F1/08

  Details · CPC title

• B61F1/04

  of triangulated type · CPC title

• B61D17/10

  Floors · CPC title

• B61F1/00 Primary

  Underframes (making railway vehicle underframes by forging or pressing B21K7/12) · CPC title

• B61F1/02

  with a single central sill · CPC title