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按主梁结构型式分类,通用门式起重机有单主梁门式和双主梁门式之分。门架结构有双悬臂、单悬臂和无悬臂3种。通用门式起重机使用于露天仓储区,使用频率较高且工作环境较为恶劣。GB/T 14406—1993《通用门式起重机》对其主要受力构件的外形尺寸有推荐性的要求。笔者日前对1台MD50/10型电动双主梁双悬臂门式起重机进行制造监检时,发现其跨度为
According to the main beam structure type classification, the universal gantry crane has the single main beam gate type and double main beam gate type. The gantry structure has two kinds of cantilever, single cantilever and no cantilever. Universal gantry cranes are used in open storage areas, which have a high frequency of use and a poor working environment. GB/T 14406-1993 “Universal Gantry Crane” has recommended requirements for the dimensions of its main force members. The author recently discovered that the span of a single MD50/10 electric double main beam double cantilever gantry crane was