The invention relates to a roof structure of a 100% low-floor tramcar. The roof structure is characterized in that a roof aluminum profile comprises three section structure forms, is formed by splicing and welding five profiles and provided with sliding grooves, and the three section forms share an upper beam, a lower beam and a reinforcing rib between the upper beam and the lower beam, wherein the integrated sliding grooves of the section structure at the end of the profile are arranged on the upper beam and the lower beam back to back, four integrated sliding grooves are arranged on the upper part, five integrated sliding grooves are arranged on the lower part, the five lower sliding grooves are adjacent, the three upper sliding grooves are adjacent and staggered with the four lower sliding grooves, and the other lower sliding groove and the other upper sliding groove are staggered in the same direction. According to the roof structure, strength, rigidity and the like are greatly improved, use conditions are met, and the mature technology, stability and reliability are achieved; and an aluminum profile integrated structure replaces an original bonding sliding groove structure, and the problem that the sliding grooves fall off is fundamentally avoided.

    一种100%低地板有轨电车车顶板结构,其特征在于:车顶铝型材包括3种断面结构形式,由5块型材拼焊组成,自带滑槽,3种断面形式共用上下梁及上下梁之间的加强筋,其中,端部型材断面结构在上下梁上背靠背设置一体式滑槽,一体式滑槽上部为四个,下部为5个,下部5个滑槽相邻,上部3个滑槽相邻且与下面的4个滑槽交错设置,下部的另1个滑槽与上部的另1个滑槽同方向交错设置;本发明在强度、刚度等方面得到巨大的提高,满足使用条件,具有成熟的技术、稳定性和可靠性;铝型材一体式结构取代原粘接滑槽结构,从根本上避免滑槽脱落问题。


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    Title :

    Roof plate structure of 100% low-floor tramcar


    Additional title:

    一种100%低地板有轨电车车顶板结构


    Contributors:
    LI YAN (author) / JIANG SHIHONG (author) / LI GANG (author)

    Publication date :

    2020-12-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



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