Bogie of a rail vehicle with at least two wheelsets mounted in axleboxes and at least one transverse member

Patent metadata

Field	Value
Publication number	US-11254335-B2
Application number	US-201716467487-A
Country	US
Kind code	B2
Filing date	Dec 7, 2017
Priority date	Dec 8, 2016
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

The invention relates to bogies for railway vehicles with at least two wheelsets mounted in axleboxes and at least one transverse member. The bogies are in particular characterized in that they have a lightweight design and can be produced at low cost. The axleboxes of a wheelset are articulated to the transverse member via two axle levers so that the axle levers form an H shape with the axleboxes and the transverse member. The transverse member has at least two torsion bars arranged in parallel to the axles of the wheelsets, said torsion bars being firmly connected to the transverse member. The torsion bars have spring levers so that the end portion of the spring lever not connected to the torsion bar acts upon the axlebox.

First claim

The invention claimed is:

1. A bogie of a rail vehicle with at least two wheel sets mounted in axle box bearings and at least one cross member, wherein the axle box bearings of a wheel set are connected in an articulated manner to the cross member via two axle levers, with the result that the axle levers form an H shape with the axle box bearings and the cross member, that the cross member has at least two torsion bars arranged parallel to the axles of the wheel sets, that the torsion bars have at least one area in which they are connected in a rotationally fixed manner to the cross member, and that the torsion bars have spring levers such that the end area, not connected to the torsion bar, of the spring lever acts on the axle box bearing.

2. The bogie according to claim 1 , wherein two torsion bars are arranged one after the other in longitudinal direction on the cross member, that the ends facing each other of the torsion bars are connected with their end areas to the cross member and that the other ends of the torsion bars comprises the spring levers.

3. The bogie according to claim 2 , wherein the cross member has an H shape in cross section, that the end areas of a torsion bar loosely penetrate the opposite arms of the cross member, that the central area of the torsion bar is securely connected to the cross member and that an axle lever each is connected in an articulated manner to an end of the arm of the cross member, with the result that the axle lever joints are components of the cross member.

4. The bogie according to claim 2 , wherein an end area of a torsion bar is located as movable part in at least one radial bearing connected to the cross member, that the end area of the torsion bar penetrates the radial bearing and that the end of the torsion bar after the radial bearing comprises the spring lever.

5. The bogie according to claim 2 , wherein the torsion bars and/or the spring levers consist of a metal or a fibre composite material or have a composite construction of at least one metal and at least one fibre composite material.

6. The bogie according to claim 1 , wherein the cross member has an H shape in cross section, that the end areas of a torsion bar loosely penetrate the opposite arms of the cross member, that the central area of the torsion bar is securely connected to the cross member and that an axle lever each is connected in an articulated manner to an end of the arm of the cross member, with the result that the axle lever joints are components of the cross member.

7. The bogie according to claim 6 , wherein the torsion bars and/or the spring levers consist of a metal or a fibre composite material or have a composite construction of at least one metal and at least one fibre composite material.

8. The bogie according to claim 1 , wherein an end area of a torsion bar is located as movable part in at least one radial bearing connected to the cross member, that the end area of the torsion bar penetrates the radial bearing and that the end of the torsion bar after the radial bearing comprises the spring lever.

9. The bogie according to claim 8 , wherein the torsion bars and/or the spring levers consist of a metal or a fibre composite material or have a composite construction of at least one metal and at least one fibre composite material.

10. The bogie according to claim 1 , wherein the torsion bar has the shape of a conic section and/or of a polygon in cross section.

11. The bogie according to claim 1 , wherein the torsion bars and/or the spring levers consist of a metal or a fibre composite material or have a composite construction of at least one metal and at least one fibre composite material.

12. The bogie according to claim 1 , wherein at least one damper is located between the end areas of the axle lever and the spring lever.

13. The bogie according to claim 12 , wherein the damper consists of an elastomer.

14. The bogie according to claim 1 , wherein the cross member is a base body with the elements for the axle lever joints of the axle levers and with fixing elements for attachment parts and that the base body consists of a metal and/or a fibre composite material.

15. The bogie according to claim 1 , wherein the cross member is a beam or a frame.

16. The bogie according to claim 1 , wherein the bogie has further spring elements for secondary suspension and a bogie pivot.

Assignees

• Crrc Qingdao Sifang Co Ltd
• Cg Rail—Chinesisch Deutsches Forschungs—Und Entw Fuer Bahn—Und Verkehrstechnik
• Cg Rail—Chinesisch Deutsches Forschungs—Und Entw Fuer Bahn—Und Verkehrstechnik

Inventors

• Ma Lijun
• Zhou Pingyu
• Sun Houli
• Zhang Xiongfei
• Fan Yunjie
• Wang Xiaoming
• Hufenbach Werner
• Ulbricht Andreas

Classifications

• B61F5/30

  Axle-boxes mounted for movement under spring control in vehicle or bogie underframes {(B61F5/36 takes precedence over B61F5/305 - B61F5/34)} · CPC title

• B61F3/02 Primary

  with more than one axle · CPC title

• B61F5/52

  Bogie frames · CPC title