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Chassis frame of a rail vehicle

A chassis frame and rail vehicle technology, applied in the direction of chassis, bogies, railway car body parts, etc., can solve the problems of lower process reliability, failure to achieve automation, unacceptable process reliability, etc., and achieve reliable anti-rotation Effects of fixing, reducing vibration transmission, and simplifying the joining process

Active Publication Date: 2009-08-12
BOMBARDIER TRANSPORTATION GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But steel castings also have the disadvantage that steel castings have relatively limited flowability
In the automated manufacture of larger components with complex geometries, as represented by the chassis frame of a rail vehicle, this leads to reduced process reliability, taking into account the high safety requirements for the chassis frame of a rail vehicle performance requirements, this process reliability is unacceptable
Therefore, even in the production of such a chassis frame from cast steel, more work steps are required, so that, even if it exists, this cannot yet achieve a satisfactory degree of automation from an economic point of view

Method used

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  • Chassis frame of a rail vehicle
  • Chassis frame of a rail vehicle
  • Chassis frame of a rail vehicle

Examples

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no. 1 example

[0059] First refer to the following figure 1 A first preferred embodiment of a chassis frame in the form of a steering wheel frame 101 according to the invention is described. here figure 1 A schematic perspective view of a steering wheel frame 101 is shown, which comprises two substantially parallel lateral longitudinal beams 102 , which are connected to one another via a centrally arranged transverse beam 103 .

[0060]Each stringer 102 comprises a front stringer section 102.1, a middle stringer section 102.2 and a rear stringer section 102.3. In the region of the front side member section 102.1, the rear steering wheel is supported via a not shown main spring on a likewise not shown front wheel unit, for example a front wheel set. In the region of the rear side member section 102.3, the rear steering wheel is supported via a main spring, not shown, on a rear wheel unit, such as a rear wheel set, also not shown.

[0061] The steering wheel frame 101 is produced as a one-p...

no. 2 example

[0063] figure 2 A schematic perspective view of another preferred embodiment of the chassis frame according to the invention is shown, which is a simple variant of the steering wheel frame 101 . The steering wheel frame 101 is here divided into two halves in the form of a front section 104.1 and a rear section 104.2, which are connected to one another in the region of a joint 104.3.

[0064] The front section 104.1 and the rear section 104.2 are designed as identical components made of gray cast iron (GGG40.3 or GJS-400-18U LT), which considerably simplifies their manufacture, since only Make only one basic mold / basic shape. However, it is understood that in other variants of the invention different geometries can also be provided for the two halves.

[0065] The junction extends four times 104.3 centrally through the cross member 103 . The joint points here extend substantially in a joint plane whose surface normal runs parallel to the longitudinal axis (x-axis) of the st...

no. 3 example

[0069] image 3 A schematic perspective view of another preferred embodiment of a chassis frame 201 according to the invention is shown, which has the same external geometry as the steering wheel frame 101 . The steering wheel frame 201 is designed in three parts here, and the two substantially parallel lateral longitudinal beams 202 and the central cross beam 203 connecting the two longitudinal beams are designed to be made of gray cast iron (GGG40.3 or GJS-400-18U LT) composed as separate components.

[0070] The transverse beams 203 are each provided with a lateral projection 203.1 on their upper sides. The corresponding protrusion 203.1 is inserted into a corresponding recess 202.4 in the longitudinal axis 202 from above, ie along the vertical axis (z-axis) of the steering wheel frame 201 . The respective longitudinal beam 202 rests in the direction of the transverse axis (y-axis) of the steering wheel frame 201 against a lateral stop surface 203.2 of the cross beam 203,...

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Abstract

The invention relates to a chassis frame for a chassis of a rail vehicle, comprising a frame body (101). The chassis frame is embodied in such a way as to be supported on at least one wheel unit of the chassis, and the frame body (101) is at least partially produced from a grey cast iron material.

Description

technical field [0001] The invention relates to a chassis frame for a chassis of a rail vehicle having a frame body which is designed to be supported on at least one wheel unit. The invention also relates to a chassis with a chassis frame according to the invention and a corresponding method for producing the chassis frame. Background technique [0002] In the field of rail vehicles, structural components, such as frames or counterweights for the chassis, in particular the chassis, are currently mainly produced by welding steel sheets. However, this method of production has the disadvantage that it requires a relatively large proportion of manual work, so that the production of the chassis frame is relatively expensive. [0003] The proportion of expensive manual work can in principle be reduced if cast components are used instead of welded structures. It is known, for example, from GB 1 209 389 A or US 6,662,776 B2 to use cast parts made of steel for chassis frames of rai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/52
CPCB61F5/52Y10T29/49622B61F1/08
Inventor G·比克R·皮珀
Owner BOMBARDIER TRANSPORTATION GMBH
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