Chassis of body of hundred-percent modern city tramcar

A technology for trams and car bodies, applied to the underframe, railway car body parts, transportation and packaging, etc., which can solve the problems that the parts cannot be independently synchronized, the welding process requirements are high, and there are too many welding parts, etc., to achieve Less prone to local fatigue damage, improved repair rate and general use rate, less prone to stress concentration
CN104015745AInactive Publication Date: 2014-09-03CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
Publication Date
2014-09-03
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a chassis of a body of a hundred-percent modern city tramcar. The chassis comprises a sleeper beam, a longitudinal beam, a first end beam, a second end beam, a first side edge beam and a second side edge beam, wherein the sleeper beam is welded to form a closed box type shaped like a Chinese character 'gong'; the longitudinal beam is welded to form a closed box type structure which penetrates through the whole body; the sleeper beam, the longitudinal beam, the end beams and the side edge beams are welded together to form a #-shaped frame structure. The chassis is formed by welding high-strength carbon steel materials, all parts are independently welded to be spliced into the chassis, and the chassis is riveted with other parts of the body. Requirements for small space of a low-floor vehicle chassis are met, and the sleeper beam and the longitudinal beam respectively form the closed box-type structure, so that the stress is uniform and is not prone to concentration, the structure is stable, the local fatigue failure is not prone to occurrence, requirements for weight control over the chassis of the whole vehicle are met, and damaged parts of the body can be independently replaced.
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Description

technical field

[0001] The invention belongs to the technical field of urban rail transit, and relates to a car body chassis for 100% modern urban trams. Background technique

[0002] Tram is a low-capacity rail transit system, which has the advantages of energy saving and environmental protection, less investment, moderate passenger capacity, better riding comfort, and less post-maintenance. Among them, 100% low-floor trams are known for their convenience, comfort and safety without setting up platforms. The underframe of the motor car and trailer body plays the role of connecting other carriages, carrying passengers, bearing and transmitting loads, etc.

[0003] At present, 100% low-floor modern urban tram car bodies and trailer bodies mainly adopt integral frame-type welded steel structures, and the body is formed by tailor-welding of individual parts. The stressed structure does not form an integral box-frame structure. There are too many welding parts, which require h...

Claims

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