Rail road tank car traction and bolster device with beam structure

Abstract

The invention discloses a rail road tank car traction and bolster device with a beam structure, comprising an end beam, towering beam assembly and sleeper beam assembly, a beam assembly structure at the tail part of a towering beam is connected with the tail part of the towering beam; the beam assembly structure comprises a bent beam web plate of which the upper surface is consistent to the shape of the lower part of the tank car horizontally, a beam lower cover board is connected at the lower part of the beam web plate, and two ends of the beam web plate are provided with beam side cover boards; the device can effectively reduce the stress value of a tank plate of the tail part of the towering beam and effectively solve the problem that the stress value of the tank plate of the tail part of the towering beam is high and even exceeds the evaluation requirements of the TB / T1335 intensity; in addition, the bolster device structure is adopted, the intensity of the tank plate of the tail part of the towering beam can meet the intensity evaluation requirements of the association of American railroads AAR; the invention has simple and rational structure, equal distribution of the adopted structure, convenient manufacturing process, prolonging the service life of the vehicle, reducing the maintenance and saving the repairing cost.

Description

technical field [0001] The invention relates to a railway tank car sleeper device with a beam structure, a railway tank car without a chassis, which belongs to railway transportation equipment. Background technique [0002] At present, the bottom frame tank truck in my country is mainly composed of the tank body and the pulling pillow device, and the rigidity and strength of the tank body itself are used to replace the bottom frame. The pillow pulling devices are respectively welded at both ends of the tank to transmit the longitudinal force and the vertical force. The pillow pulling device is mainly composed of a pillow beam assembly and a drawing beam assembly. For a tank car with this structure, under the condition of train longitudinal impact compression force, the stress at the weld between the tank plate and the tail of the draw beam is relatively large, and the stress value is close to or even exceeds that of TB / T1335 "Strength Design and Test Appraisal of Railway Veh...

AI Technical Summary

Problems solved by technology

For a tank car with this structure, under the condition of train longitudinal impact compression force, the stress at the weld between the tank plate and the tail of the draw beam is relatively large, and the stress value is close to or even exceeds that of TB / T1335 "Strength Design and Test Appraisal of Railway Vehicles" The strength evaluation requirements of the Code have been verified in strength calculations and tests; at the same time, if the AAR evaluation standard of the North American Association of Railroads is used, the tank car at the end of the draw beam of the tank car without a chassis with the existing traction device structure currently used in China The strength of the body tank plate does not meet the assessment standard of AAR

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