A low-floor tram car end beam and lower hinged mounting seat structure

Abstract

The invention discloses a low floor tramcar end beam and bottom hinging mounting seat structure. The low floor tramcar end beam and bottom hinging mounting seat structure comprises an end beam and a hinging mounting base which is arranged at the rear end center of the end beam, the end beam is of a concave hollow structure, the inner part of the end beam is provided with a reinforcing rib cloth, workshop damping mounting bases are arranged, on the left and right sides of the hinging mounting base, on the end beam, two workshop damping mounting bases are symmetrical left and right with the hinging mounting base as a center, rotation stops are arranged between the workshop damping mounting bases and the hinging mounting base, the two rotation stops which are arranged on the left and right sides of the hinging mounting base are symmetrical left and right with the hinging mounting base as the center. According to the low floor tramcar end beam and bottom hinging mounting seat structure, the lightweight design of the structure is ensured, the structure is simple, strength performance is good, manufacturing is convenient, the cost is low and the maintenance is convenient; and the uniquearrangement form of the end beam, the hinging mounting seat, the rotary stops and the workshop damping mounting seats meets the requirements of vehicle operation stability and comfort.

Description

technical field [0001] The invention relates to the field of low-floor trams, in particular to an end beam and a lower hinged mounting seat structure of a low-floor tram. Background technique [0002] Modern low-floor trams adopt the design scheme of short car body modules in order to meet the requirements of passing through small-radius curves, and the modules are connected by hinge mechanisms. The end beam and the hinged mounting seat need to bear the longitudinal force, lateral force, vertical force and corresponding torsional load generated during the operation of the vehicle, and transmit the above force to another vehicle through the hinge mechanism. At the same time, by constraining and releasing the degree of freedom between the vehicle modules, the vehicle can pass through the small radius curve smoothly and quickly to ensure the smooth running of the vehicle. Therefore, the end beam and the hinged mounting seat are the key components of the low-floor tram. [0003...

AI Technical Summary

Problems solved by technology

[0003] However, in the current low-floor trams, the mounting base and the end beam provided with the hinged mechanism bear the complex dynamic load of the hinged mechanism, the hinged mechanism bears a large force, and there is no buffer energy-absorbing device, and the load is directly transmitted to the hinged mechanism. On the mounting base and end beam, resulting in a large load on the mounting base and end beam of the hinge mechanism

If the design of the mounting seat and the end beam is unreasonable, there will be a safety hazard that will cause cracks and even destruction at the end of the car body and the hinged seat

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