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§5缆索吊车 缆索吊车是铁路施工工地上常用来起吊、搬运重物的一种起重设备。对于跨越河道、深谷地区的起重工作,缆索吊车有它独特的优点。缆索吊车的组成部分有轨索、起重索、牵引索、小车、塔架、绞车、缆风、地垄等。图29是缆索吊车构造示意图。它的构造及穿绳办法是缆索吊车的常用作法。图30所示的缆索吊车是我院“五·七工程处”教师和工人、贫下中农相结合,在材料缺乏、条件困难的情况下安装起来的,表面看来虽然土里土气,但却胜利地完成了某铁路桥5吨砼块件的装吊工作。它符合毛主席提出的“自力更生”和“勤俭建国”的方针。
§5 Cable cranes Cable cranes are lifting devices commonly used on railway construction sites to lift and carry heavy loads. For lifting work across rivers and deep valleys, cable cranes have their unique advantages. The components of the cable crane are: track ropes, lifting cables, traction cables, trolleys, towers, winches, cable winds, and ridges. FIG. 29 is a schematic diagram of a cable crane. Its construction and method of wearing a rope are commonly used as cable cranes. The cable crane shown in Fig. 30 is a combination of teachers and workers of the “5-7 Engineering Office” of our institute and poor and middle peasants. It is installed under conditions of lack of materials and difficult conditions. Although apparently rustic, it is a victory. Completed the installation and lifting of a 5-ton block of a railway bridge. It complies with Chairman Mao’s “self-reliance” and “diligent and founding” approach.