Three-piece motion control truck system

A bogie and side frame technology, which is applied in the direction of horizontal relative movement between the bogie, the bottom frame and the bogie, transportation and packaging, etc., to achieve the effect of reducing the impact pressure

Active Publication Date: 2008-07-23
AMSTED RAIL CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Previous standards, such as M-948-77, limited travel to 5 / 16" for many applications

Method used

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  • Three-piece motion control truck system
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  • Three-piece motion control truck system

Examples

Experimental program
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Embodiment Construction

[0075] As shown in FIG. 1, an exemplary railroad car wheel truck assembly 10 has a first sideframe 12 and a second sideframe 14 arranged parallel to one another. The cross bolster 16 generally joins the first and second sideframes 12, 14 together at their respective spring windows 18 approximately at the longitudinal midpoints of the first and second sideframes 12,14. A first axle and wheelset 20 and a second axle and wheelset 22 are disposed at opposite ends of the parallel sideframes 12 and 14 . Each of the first and second axles and wheelsets 20 , 22 has an axle axis 30 generally transverse to the longitudinal axis 31 of the first and second sideframes 12 , 14 and generally parallel to the bolster 16 . Each of the first and second wheel sets 20 , 22 includes wheels 24 and 26 and an axle 28 having an axle axis 30 .

[0076] The corbel 16 has a first end 32 and a second end 34 that extend through the windows 18 of the first and second sideframes 12 , 14 of FIG. 1 , respecti...

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PUM

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Abstract

An improved three-piece truck system for railroad cars provides long travel side bearings for improved stability, a 'wide' friction shoe design or equivalent to improve sideframe and bolster squareness, a resilient pedestal pad for improved curving performance and enhanced wear resistance, and a suspension system tuned and optimized for rail cars to have a minimum reserve capacity of less than 1.5 to improve motion control and ride quality, increase resistance to suspension bottoming, and increase hunting threshold speed. Such a motion control truck system is able to meet recent, more stringent American Association of Railroads standards, such as M-976, for railcars having a 286,000 lb. gross rail load rating.

Description

technical field [0001] The present invention relates to an improved three-piece truck system for railcars, which system provides a long travel constant contact side bearing for improved stability, a friction shoe with improved squareness, and a Elastomeric mount pads for improved curve performance and increased wear resistance, and a suspension system tuned and optimized for railcars for improved ride quality, increased resistance to suspension sag, and increased oscillation limit speed. The motion control bogie system is believed to meet or exceed the Association of American Railroads (AAR) M-976 specification requirements. Background technique [0002] Opposite ends of the railcar are typically supported on spaced apart truck assemblies which allow the trucks to travel along the rails. A standard railroad car consists of a pair of railroad car trucks consisting of a pair of sideframes supported on a pair of axles, each axle providing a pair of wheels secured to each axle ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/02B61F5/12B61F5/14B61F5/30
CPCB61F5/14B61F5/30B61F5/122
Inventor 托马斯·伯格内森·里斯拉尔夫·肖尔杰夫·鲁拜克朱利叶斯·珀施威茨
Owner AMSTED RAIL CO INC
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