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塔式起重机(以下简称塔机)在工程建设和物料搬运过程中的用途越来越广,使用领域不断扩大,特别是近几年造船业使用的塔机越来越多,使用的形式要求越来越高。
Tower cranes (hereinafter referred to as tower cranes) are becoming more and more widely used in engineering construction and material handling and their fields of use are constantly expanding. In particular, there are more and more tower cranes used in the shipbuilding industry in recent years. The higher