Collision energy absorption structure and rail vehicle having same

Patent metadata

Field	Value
Publication number	US-11186300-B2
Application number	US-201816303784-A
Country	US
Kind code	B2
Filing date	Sep 29, 2018
Priority date	Sep 6, 2018
Publication date	Nov 30, 2021
Grant date	Nov 30, 2021

Abstract

Provided are a collision energy absorption structure and a rail vehicle having the same. The collision energy absorption structure includes: a primary energy absorption structure, connected to a chassis boundary beam of a vehicle, the primary energy absorption structure having at least two spaced energy absorption cavities; an end energy absorption structure, the lower end of the end energy absorption structure being connected to the primary energy absorption structure; and a roof structure, the upper end of the end energy absorption structure being connected to the roof structure. The technical solution provided by the present invention can meet requirements of more complex road conditions.

First claim

What is claimed is:

1. A collision energy absorption structure of a rail vehicle, comprising:
a primary energy absorption structure ( 10 ), connected to a chassis boundary beam ( 40 ) of a vehicle, the primary energy absorption structure ( 10 ) having at least two spaced energy absorption cavities;
an end energy absorption structure ( 80 ), the lower end of the end energy absorption structure ( 80 ) being connected to the primary energy absorption structure ( 10 ); and
a roof structure ( 90 ), the upper end of the end energy absorption structure ( 80 ) being connected to the roof structure ( 90 );
the primary energy absorption structure ( 10 ) comprises an end beam ( 11 ), two ends of the end beam ( 11 ) are connected to a chassis boundary beam ( 40 ) of the vehicle respectively, the end beam ( 11 ) has an end beam bottom plate ( 111 ) and an end beam vertical plate ( 112 ) connected to the end beam bottom plate ( 111 ), and the end beam vertical plate ( 112 ) is vertically disposed and defines the energy absorption cavity on the end beam bottom plate ( 111 );
wherein the end beam vertical plate ( 112 ) comprises a first edge vertical plate ( 112 a ), a second edge vertical plate ( 112 b ) and multiple middle vertical plates ( 112 c ), wherein the first edge vertical plate ( 112 a ) and the second edge vertical plate ( 112 b ) are spaced, two ends of the vertical plates ( 112 c ) are connected to the first edge vertical plate ( 112 a ) and the second edge vertical plate ( 112 b ) respectively, the multiple middle vertical plates ( 112 c ) are spaced, and multiple spaced energy absorption cavities are defined between the first edge vertical plate ( 112 a ) and the second edge vertical plate ( 112 b ).

2. The collision energy absorption structure as claimed in claim 1 , wherein the end energy absorption structure ( 80 ) comprises a first energy absorption cylinder ( 81 ), the middle of the end beam bottom plate ( 111 ) is provided with a first cylinder mounting hole ( 111 a ), and the first energy absorption cylinder ( 81 ) penetrates into the first cylinder mounting hole ( 111 a ) and is welded to the end beam bottom plate ( 111 ).

3. The collision energy absorption structure as claimed in claim 2 , wherein the end beam bottom plate ( 111 ) comprises a first bottom plate and a second bottom plate disposed oppositely, and the first energy absorption cylinder ( 81 ) is welded to the first bottom plate and the second bottom plate respectively.

4. The collision energy absorption structure as claimed in claim 2 , wherein the end energy absorption structure ( 80 ) further comprises a second energy absorption cylinder ( 82 ), having a first end welded to the roof structure ( 90 ) and a second end welded to the primary energy absorption structure ( 10 ).

5. The collision energy absorption structure as claimed in claim 4 , wherein there are two second energy absorption cylinders ( 82 ), the two second energy absorption cylinders ( 82 ) being spaced; and there are two first energy absorption cylinders ( 81 ), the two first energy absorption cylinders ( 81 ) being spaced, and the two first energy absorption cylinders ( 81 ) being located between the two second energy absorption cylinders ( 82 ).

6. The collision energy absorption structure as claimed in claim 5 , wherein two ends of the end beam bottom plate ( 111 ) are separately provided with a second cylinder mounting hole ( 111 c ), and the second energy absorption cylinder ( 82 ) penetrates into the second cylinder mounting hole ( 111 c ) and is welded to the end beam bottom plate ( 111 ).

7. The collision energy absorption structure as claimed in claim 1 , further comprising:
a secondary energy absorption structure ( 20 ), the secondary energy absorption structure ( 20 ) being connected to the primary energy absorption structure ( 10 ), the secondary energy absorption structure ( 20 ) comprising at least two spaced energy absorption tubes ( 21 ), and the primary energy absorption structure ( 10 ) being connected to a first end of the energy absorption tube ( 21 ).

8. The collision energy absorption structure as claimed in claim 7 , wherein the energy absorption tube ( 21 ) is a hollow structure, the energy absorption tube ( 21 ) is provided with a first induction portion ( 213 ), the first induction portion ( 213 ) comprises an induction hole ( 211 ), and the induction hole ( 211 ) is a through hole.

9. The collision energy absorption structure as claimed in claim 8 , wherein the cross section of the energy absorption tube ( 21 ) is rectangular, the first induction portion ( 213 ) comprises at least one group of induction holes ( 211 ), and the induction holes ( 211 ) of each group is spaced in the circumferential direction of the energy absorption tube ( 21 ) along a plane vertical to the axis of the energy absorption tube ( 21 ).

10. The collision energy absorption structure as claimed in claim 9 , wherein the first induction portion ( 213 ) comprises a plurality of groups of induction holes ( 211 ), the plurality of groups of induction holes ( 211 ) being spaced along an extending direction of the energy absorption tube ( 21 ).

11. The collision energy absorption structure as claimed in claim 8 , wherein the energy absorption tube ( 21 ) comprises at least two adjacent side walls, the two adjacent side walls are connected to form a bending portion, and the first induction portion ( 213 ) is disposed on at least one bending portion of the energy absorption tube ( 21 ).

12. The collision energy absorption structure as claimed in claim 8 , wherein the energy absorption tube ( 21 ) is also provided with a second induction portion ( 216 ), the second induction portion ( 216 ) being disposed on a side wall of the energy absorption tube ( 21 ).

13. The collision energy absorption structure as claimed in claim 12 , wherein the second induction portion ( 216 ) is depressed into the side wall of the energy absorption tube ( 21 ) to form a depression portion ( 212 ).

14. The collision energy absorption structure as claimed in claim 13 , wherein the cross section of the energy absorption tube ( 21 ) is rectangular, there are two second induction portions ( 216 ), and the two second induction portions ( 216 ) are disposed on the side walls of the energy absorption tube ( 21 ) oppositely.

15. The collision energy absorption structure as claimed in claim 7 , further comprising a tertiary energy absorption structure ( 30 ), wherein the tertiary energy absorption structure ( 30 ) is connected to a second end of the energy absorption tube ( 21 ), the tertiary energy absorption structure ( 30 ) comprises a stopping beam ( 31 ), and two ends of the stopping beam ( 31 ) are connected to the chassis boundary beam ( 40 ) of the rail vehicle respectively.

16. The collision energy absorption structure as claimed in claim 15 , wherein the second end of the energy absorption tube ( 21 ) is connected to the stopping beam ( 31 ).

17. The collision energy absorption structure as claimed in claim 15 , wherein the stopping beam ( 31 ) comprises a first stopping segment, a second stopping segment and a third stopping segment connected in sequence, the second end of the energy absorption tube ( 21 ) is welded to the second stopping segment, a first included angle is provided between the first stopping segment and the second stopping segment, the first included angle is an obtuse angle, a second included angle is provided between the third stopping segment and the second stopping segment, and the first included angle is equal to the second included

Assignees

• Crrc Qingdao Sifang Co Ltd

Inventors

• Yu Haiyang
• Liu Yuwen
• Tian Aiqin
• Tian Honglei
• Yu Yangyang

Classifications

• B61F1/10 Primary

  End constructions · CPC title

• B61F19/04 Primary

  Bumpers or like collision guards · CPC title

• B61D17/06

  End walls · CPC title

• B61F1/00

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

• Y02T30/00

  Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance · CPC title