Inclined bolster and secondary suspension including the bolster

A technology of support and rigidity, applied in the field of secondary suspension, can solve the problem of inability to improve characteristics

Inactive Publication Date: 2016-06-08
HUTCHINSON SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device does not improve the characteristics according to the horizontal
[0010] Furthermore, laminated frusto-conical springs may have problems ensuring substantial vertical clearance, as well as ensuring vertical stiffness independent of load level (for such components, the axial force versus axial displacement characteristic tends to be non-linear), In addition to this, there is the problem of heaving and therefore of adjustment to ensure the height of the floor relative to the platform over a period of time

Method used

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  • Inclined bolster and secondary suspension including the bolster
  • Inclined bolster and secondary suspension including the bolster
  • Inclined bolster and secondary suspension including the bolster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] Figure 1a with 1b Representing a vehicle, the vehicle has a main body 1 and two bogies 2, each bogie includes two axles 21 and four wheels 22, the axles 21 and wheels 22 are suspended on the chassis 23 of the bogie 2 through a primary suspension 24, The primary suspension 24 includes four subassemblies 25 .

[0038] Each bogie 2 is provided with a secondary suspension 3 comprising four subassemblies 31 distributed according to a quadrilateral.

[0039] Figure 2a Four subassemblies 31 are shown, each subassembly 31 comprising two inclined bolsters 32 and 33 between which one or more metal suspension springs 4 are arranged. The upper inclined bolster 32 is integrated with the part 11 for interfacing with the main body 1, the lower inclined bolster 33 is integrated with the part 26 for interacting with the bogie 2, and a series of suspensions are also installed on the bogie 2. Component 25. h susp Specifies the height of the secondary suspension, which includes the ...

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PUM

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Abstract

The subbase has a central vertical guiding pivot (50) comprising a cylindrical or truncated elastic element (53) assembled between an internal part (51) and an external part (52). The internal part is integrated with a support. The external part is integrated with another support. Horizontal stiffness of the pivot is greater than vertical stiffness. Central parts of elastic studs (60) are aligned on a horizontal axis and assembled between the supports. Vertical stiffness of the central parts of the studs is high with respect to horizontal stiffness of the central parts of the studs. The tapered elastic element is partially made of elastomer. The elastic studs are metal pads and elastomer. An independent claim is also included for a suspension sub-assembly comprising a suspension spring.

Description

technical field [0001] The invention relates to an inclined bolster and a secondary suspension including the bolster. Background technique [0002] Bolsters are known which are used in the secondary suspension of railway vehicles, such as freight cars, passenger cars or locomotives, to ensure the suspension of the vehicle body relative to the chassis, wherein the axle-wheel assemblies are suspended by the primary mounted on the chassis. [0003] For a bogie comprising, for example, two axles and four wheels (or, for example, comprising three axles), it is known to provide two or four secondary suspension subassemblies, each secondary suspension subassembly having a A bolster or a pair of bolsters, and one or more metal springs arranged in series with the bolster or between the bolsters, the function of the metal springs is to obtain the vertical flexibility required for the secondary suspension. [0004] There are several types of bolsters designed for such applications, b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/02
CPCB61F5/06B61F5/08B61F5/142
Inventor 本杰明·费斯
Owner HUTCHINSON SA
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