Light rail vehicle converter cabinet

Abstract

The invention provides a current-transformer cabinet body for a light-rail vehicle. The cabinet body includes a bottom plate, a sidewall plate arranged fixedly on the bottom plate and at least two lifting lugs. The bottom plate and the sidewall plate define an accommodating cavity used for accommodating a current transformer device. The bottom plate includes installation transition parts formed at the edges of the top faces of the bottom plate. Each installation transition part is provided with at least two connection through holes. The tail ends of the lifting lugs pass through the connection through holes and extend into the accommodating cavity. The head ends of the lifting lugs are located outside the accommodating cavity and the lifting lugs are also welded and fixed respectively with surfaces of the installation transition parts, facing inwards and surfaces of the installation transition parts, facing outwards. The current-transformer cabinet body for the light-rail vehicle improves the connection strength between the lifting lugs and the bottom plate significantly and capable of satisfying a vibration state in an operation process of the light-rail vehicle; and moreover, the welding process difficulty is also reduced so that the fabrication procedure of the current-transformer cabinet body is better.

Description

technical field [0001] The invention relates to the manufacturing technology of light rail vehicle components, in particular to a light rail vehicle converter cabinet. Background technique [0002] The converter cabinet is composed of a base plate and side wall plates fixedly arranged around the base plate and perpendicular to the base plate, for accommodating converter components. Hanging lugs are respectively fixedly provided on the outside of the side wall panels of the cabinet and close to the bottom plate, so as to install and fix the converter cabinet to the vehicle body through the lifting lugs. [0003] In the prior art, the lifting lug is welded and fixed on the outer surface of the side wall plate, that is to say, the mechanical strength of the connection between the lifting lug and the side wall of the cabinet is completely determined by the welding quality. This leads to connection failure and increases the difficulty of the welding process; moreover, for light ...

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Problems solved by technology

[0003] In the prior art, the lifting lug is welded and fixed on the outer surface of the side wall plate, that is to say, the mechanical strength of the connection between the lifting lug and the side wall of the cabinet is completely determined by the welding quality. This leads to connection failure and increases the difficulty of the welding process; moreover, for light rail vehicles that are often in a state of vibration during operation, it is difficult to meet the requirements only by the strength of the welding connection, and it is impossible to reliably install and fix the converter cabinet

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