Chassis frame of a rail vehicle

• US 8,196,522 B2
• Filed: 06/19/2007
• Issued: 06/12/2012
• Est. Priority Date: 06/27/2006
• Status: Active Grant

• Current Assignee: Bombardier Transportation GmbH (Bombardier Incorporated)
• Original Assignee: Bombardier Transportation GmbH (Bombardier Incorporated)
• Inventors: Bieker, Guido, Pieper, Reinhard
• Primary Examiner(s): Morano, S. Joseph
• Assistant Examiner(s): MCCARRY JR, ROBERT J
• Application Number:
  US12/305,502
• Publication Number:
  US 20100011985A1
• Time in Patent Office: 1,820 Days
• Field of Search: 105/157.1, 105/158.1, 105/159, 105/182.1, 105/226, 105/228, 105413-419
• US Class Current: 105/182.1
• CPC Class Codes: B61F 5/52 Bogie frames
• CPC Class Codes: Y10T 29/49622 Vehicular structural member making

Abstract

A running gear frame for a running gear of a rail vehicle with a frame body, which is configured to be supported at least on one wheel unit of the running gear. The frame body has two longitudinal beams extending in a longitudinal direction of the running gear and at least one transverse beam extending in a transverse direction of the running gear. The transverse beam substantially rigidly connects the two longitudinal beams to each other. The frame body is at least partially made of grey cast iron material.

Claims

1. A running gear frame for a running gear of a rail vehicle with a frame body configured to be supported on at least one wheel unit of the running gear, the frame body comprising two longitudinal beams extending in a longitudinal direction of the running gear and at least one transverse beam extending in a transverse direction of the running gear and substantially rigidly connecting the two longitudinal beams to each other, wherein the frame body is at least partially made of a grey cast iron material,

wherein the frame body comprises at least two frame components which are connected to each other in the region of at least one joint,

wherein at least one connection element is provided in the region of a joint, the connection element being connected to the two frame components, and

wherein a portion of the joint extends substantially in one joining plane and the connection element forms at least one protrusion which extends in the direction of the surface normal of the joining plane into a respective recess in one of the two frame components.

2. The running gear frame of claim 1, wherein the frame body is at least partially made of a globular grey cast iron material.

3. The running gear frame of claim 1, wherein the connection element is at least on of

monolithically configured with one of the two frame components;

and

connected with at least one of the two frame components through at least one connection selected from a connection group consisting of a friction locked connection and a form locked connection and a bonded connection.

4. The running gear frame of claim 1, wherein the connection element has a cross section selected from a cross section group consisting of

a cross section which tapers with increasing distance from the joining plane;

a circular cross section, an elliptical cross section, and a polygonal cross section.

5. The running gear frame of claim 1, wherein the connection element is at least one of

disposed in a portion of a section of the frame body which is tension stressed under static load;

and

disposed so that it is shear-stressed through the static load of the frame body.

6. The running gear frame of claim 1, wherein at least one connection element is an element bridging the joint and connected with both joining partners, the bridging element being one of

configured as a tension anchor operating in the direction of the surface normal of the joining plane;

and

configured as a plate bridging the joint.

7. The running gear frame of claim 1, wherein the connection element comprises at least one recess defined therein, the recess being configured to receive a component of a non-destructive material testing device.

8. The running gear frame of claim 1, wherein at least one of the frame components in the region of the joint is at least partially provided with a coating which prevents friction corrosion.

9. The running gear frame of claim 8, wherein the coating comprises molybdenum.

10. The running gear frame of claim 1, wherein

the frame body comprises a forward section, a center section and a rear section, wherein

the center section connects the forward section and the rear section;

the forward section is configured to be supported on a leading wheel unit of the running gear; and

the rear section is configured to be supported on a trailing wheel unit of the running gear.

11. The running gear frame of claim 10, wherein

the frame body comprises at least two frame components which are connected to each other in the region of at least one joint, wherein at least one of

at least one joint is disposed in the region of the center section and

at least one joint is disposed in the region of the forward section;

and

at least one joint is disposed in the region of the rear section.

12. The running gear frame of claim 1, wherein the frame body is configured as a substantially H-shaped frame, the frame comprising two longitudinal beams extending in a longitudinal direction of the running gear and at least one transverse beam extending in a transverse direction of the running gear, the traverse beam connecting the two longitudinal beams to each other.

13. The running gear frame of claim 12, wherein at least one of the longitudinal beams comprises at least one longitudinal beam section which is connected in the region of at least one joint to one of the at least one transverse beam and another longitudinal beam section of the longitudinal beam.

14. The running gear frame of claim 13, wherein the longitudinal beam is configured in one piece and connected in the region of the joint to the at least one transverse beam.

15. The running gear frame of claim 14, wherein a portion of the joint extends substantially in a joining plane, the surface normal of the joining plane comprising at least a component in the direction of the height axis of the running gear.

16. The running gear frame of claim 13, wherein the longitudinal beam comprises two longitudinal beam sections which are connected in the region of the one respective joint with the at least one transverse beam.

17. The running gear frame of claim 16, wherein at least one of the joints includes a portion that extends substantially in a joining plane, the surface normal of the joining plane having at least one of

a component in the direction of the height axis of the running gear, and

a component in the direction of the transverse axis of the running gear.

18. The running gear frame of claim 13, wherein

at least one of the longitudinal beams comprises a forward longitudinal beam section, a center longitudinal beam section, and a rear longitudinal beam section, wherein

the center longitudinal beam section is connected to the at least one transverse beam.

19. The running gear frame of claim 18, wherein at least one of the forward longitudinal beam section and the rear longitudinal beam section is connected to the center longitudinal beam section in the region of a joint.

20. The running gear frame of claim 19, wherein at least one of the joints includes a portion that extends substantially in a joining plane, the surface normal of the joining plane having at least one of

a component in the direction of the longitudinal axis of the running gear, and

a component in the direction of the transverse axis of the running gear, and

a component in the direction of the height axis of the running gear.

21. The running gear frame of claim 20, wherein the surface normal of the joining plane is at least one of substantially parallel to the longitudinal axis of the running gear;

and

substantially parallel to the transverse axis of the running gear; and

substantially parallel to the height axis of the running gear.

22. The running gear frame of claim 18, wherein a compression element is disposed in the region of at least one of the joints between the center longitudinal beam section and one of the forward longitudinal beam section and the rear longitudinal beam section.

23. The running gear frame of claim 18, wherein

at least one of the longitudinal beams comprises a respective downward angulation between the ends and the center of the longitudinal beam;

and

at least one of the joints is disposed in the region of the angulation or is disposed on the side of the angulation facing away from the center of the longitudinal beam.

24. The running gear frame of claim 18, wherein the center longitudinal beam section is monolithically formed with the at least one transverse beam.

25. The running gear frame of claim 12, wherein at least a portion of at least one of the longitudinal beams is made of grey cast iron material.

26. A running gear for a rail vehicle with a running gear frame according to claim 1.

27. The running gear of claim 26, the running gear being configured as a bogie.

28. The running gear frame of claim 1, wherein the at least two frame components are disengagably connected to each other.

29. The running gear frame of claim 1, wherein the frame body is at least partially made of one of GGG40.3 and GJS-400-18U LT.

30. A method for producing a running gear frame for a running gear of a rail vehicle, comprising the steps of:

providing a frame body of the running gear frame, the frame body being configured to be supported at least on one wheel unit of the running gear, the frame body comprising two longitudinal beams extending in a longitudinal direction of the running gear and at least one transverse beam extending in a transverse direction of the running gear and substantially rigidly connecting the two longitudinal beams to each other, wherein the frame body is at least partially made of a grey cast iron material, and wherein the frame body comprises at least two frame components;

connecting the frame components to each other in the region of at least one joint;

providing at least one connection element in the region of a joint, the connection element being connected to the two frame components,

wherein a portion of the joint extends substantially in one joining plane and the connection element forms at least one protrusion which extends in the direction of the surface normal of the joining plane into a respective recess in one of the two frame components.

31. The method of claim 30, wherein the frame body is cast in a single step.

32. The method of claim 30, wherein

the frame body comprises at least two frame components;

the at least two frame components are cast from a grey cast iron material as separate components; and

the at least two frame components are connected.

33. The method of claim 30, wherein

the frame body comprises at least two frame components;

at least one of the at least two frame components is cast from a grey cast iron material;

at least one of the at least two frame components is made from steel; and

the at least two frame components are connected.