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Draft-sleeping structure of tank car without central beam

A technology for railways and tank cars, which is applied in the field of pillow structure of railway tank cars without center girder. It can solve the problems of poor fatigue resistance and high vertical weld stress, and achieve the effects of reducing stress concentration, increasing fatigue life and improving fatigue resistance.

Inactive Publication Date: 2013-03-20
XI AN RAILWAY TRANSPORTATION EQUIP
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AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problems existing in the background technology, the present invention proposes a railroad tank car pull-pillar structure without a center beam, and arc-shaped connectors are used at the weld seam, which solves the high stress and poor fatigue resistance of the vertical weld seam The problem

Method used

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Embodiment Construction

[0020] see figure 1 , figure 2 , the traction pillow structure of a railway tank car without a central sill of the present invention, comprising a corbel side cover 1, a corbel web 2, a corbel lower side cover 3, a corbel rib 4, a reinforcing member 5, and a traction beam web 6 and the lower wing surface 7 of the traction beam; the corbel web 2 is set on the lower side cover plate 3 of the corbel; the traction beam web 6 is perpendicular to the traction beam lower wing surface 7; the corbel rib 4 is set on the bolster The beam lower side cover plate 3 is close to the longitudinal rib of the bending area of ​​the traction beam.

[0021] The reinforcing piece 5 is a steel plate bent into an arc shape, which is similar to the shape of a tile. The corbel web 2 and the traction beam web 6 are connected by vertical welds. On both sides of the seam, the two straight sides of each tile-shaped reinforcement are respectively connected with the corbel web 2 and the traction beam web 6...

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Abstract

The invention provides a draft-sleeping structure of a tank car without a central beam. The draft-sleeping structure of the tank car without the central beam comprises a sleeper beam and a draft beam, wherein the sleeper beam is symmetrically arranged at two sides of the draft beam, the sleeper beam comprises a sleeper beam lower side cover plate, a sleeper beam rib plate and a sleeper beam web, the sleeper beam web is arranged on the sleeper beam lower side cover plate, the draft beam comprises a draft beam web and a draft beam lower wing surface perpendicular to the draft beam web, the sleeper beam rib plate is arranged on a longitudinal rib plate, close to a bending area of the draft beam, of the sleeper beam, reinforcing parts are arranged between the sleeper beam web and the draft beam web, and each reinforcing part is a cambered surface reinforcing part. According to the draft-sleeping structure of the tank car without the central beam, circular arc connection pieces are adopted at weld joints, and the problems of high stress and poor anti-fatigue performance of the vertical weld joints are resolved.

Description

technical field [0001] The invention relates to the field of railway tank cars, in particular to a sleeper structure for a railway tank car without a center beam. Background technique [0002] The railway tank car without center sill is the most important form of railway tank car, and the traction pillow is the main load-bearing structure of the railway tank car without center sill, which plays the role of supporting the tank body and transmitting the longitudinal force of the train. The traction pillow is mainly composed of a traction beam along the longitudinal direction of the vehicle and a bolster along the transverse direction of the vehicle. During the application, cracks appeared in the vertical welding seam of the lead pillow and the lower cover plate of the corbel beam, which caused a major threat to the safety of railway traffic, and may even cause tank cars to overturn, oil leakage, combustion, and explosion. [0003] With the development of technology, the load ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61D5/06
Inventor 朱英波韩志坚郭小锋侯军郑继承祁扬范俊芳拜雪玲
Owner XI AN RAILWAY TRANSPORTATION EQUIP
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