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Railroad freight car sidebearing

A technology of railway vehicles and foundations, applied in the field of improving side bearings

Inactive Publication Date: 2012-03-21
AMSTED RAIL CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such vertical travel has limitations based on the allowable height of the wagon and the design load of the wagon

Method used

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  • Railroad freight car sidebearing
  • Railroad freight car sidebearing
  • Railroad freight car sidebearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] now refer to Figure 3 to Figure 9 , shows a first embodiment of the side bearing according to the invention. The side bearing 10 includes a base structure 12 consisting of a base portion 22 and a base wall 24 extending generally vertically upward from the base portion. The base structure 12 is typically a cast steel or cast iron one-piece structure, but may also be fabricated or machined. According to the needs of use, the shape of the base 22 can be circular, substantially rectangular or substantially oval or rhombus.

[0029] The cap 14 can be seen to consist of a top 26 and a wall structure 28 extending generally downwardly from the outer edge of the cap 14 . Likewise, the cap 14 is typically a cast steel or cast iron one-piece construction, but could also be assembled or machined.

[0030] It can be seen that the base 12 also includes an upper base wall stop surface 38 located on top of the base wall 24 . Similarly, it can be seen that the cap 14 includes a cap...

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PUM

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Abstract

An improved side bearing for railway cars is provided that achieves improved tracking and curving by the limitation of rock of the railway car. The side bearing comprises a base with a generally upwardly extending wall portion. A cap comprising a top section with generally downwardly extending wall portion is provided. The cap extends into or around the wall section of the base. A spring is provided within the base that extends to the underside and supports the cap. A base insert is provided of varying thickness to support springs of the same preselected height to provide preselected varying load capacities.

Description

technical field [0001] The present invention relates to an improved side bearing for mounting on a railway vehicle truck bolster which provides improved control to limit the rocking characteristics of the railway vehicle during operation. Background technique [0002] in for example figure 1 In a typical railroad freight train shown in , railroad cars 212, 214 are connected end-to-end by couplings 216, 218. Couplers 216, 218 are each housed in a drawbeam 220, 222 of each respective car, along with a bumper or hitch assembly not shown. The drawbeams 220 , 222 are provided at the ends of the railroad car center beams and include core plates in core plate bowls of railroad car trucks 226 , 228 . [0003] Such as figure 2 As better shown in , each typical vehicle truck 226 includes a pair of sideframes 230 , 232 supported on axle-wheel sets 234 , 236 . The bolster 238 extends between and is supported on springs 240 mounted on the side frames 230 , 232 . The bolster core pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/14
CPCB61F5/142
Inventor M·米勒B·约翰斯顿
Owner AMSTED RAIL CO INC