重机简介(crane profile)

1.1起重机简介
起重机是一种用来起重与空中搬运重物的机械设备，广泛应用于工矿企业、车站、港口、仓库、建筑工地等部门。它对减轻工人劳动强度、提高劳动生产率、促进生产过程机械化起着重要作用，是现代化生产中不可缺少的工具。起重机包括桥式、门式、梁氏和旋转式等多种，其中以桥式起重机的应用最广。
桥式类起重机又分为通用桥式起重机、冶金专用起重机、龙门起重机与缆索起重机等。
桥式起重机是桥架在高架轨道上运行的一种桥架型起重机，又称天车。桥式起重机的桥架沿铺设在两侧高架上的轨道纵向运行，起重小车沿铺设在桥架上的轨道横向运行，构成一矩形的工作范围，就可以充分利用桥架下面的空间吊运物料，不受地面设备的阻碍。  

1.1 crane profile
   crane is a used to lifting and air carrying heavy loads of machinery, equipment, widely used in industrial and mining enterprises, station, port, warehouse, construction sites and other departments. It to reduce labor intensity and improve labor productivity and promoting production process mechanization plays an important role in modern production, is the indispensable tools. Crane including bridge type and gantry, LiangShiHe rotary and so on many kinds of, among them with bridge crane's most widely used.
   Bridge type class crane and divided into general bridge crane, metallurgy special crane and longmen crane and cable crane, etc.
   Bridge crane bridge in elevated rail running on a bridge cranes, also called cranes. Bridge crane along the bridge on both sides laying in the orbit of an elevated along the longitudinal operation, lifting car on the shelf in bridge laying track horizontal operation, constitutes a rectangular scope of work, can make full use of bridge in the Spaces below hoisting the materials, not to suffer ground equipment obstacles.

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