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1972年5月底试制出“向阳3号”5吨轮胎动臂起重机(图1)。该机组装完毕后,进行了一系列重载试验,先后在五个施工现场从事中小型构件及三吨以下的进深梁、元孔板、屋面板和砖、砂浆等材料的垂直运输。到目前为止,已完成了120个台班作业。一、构造和特点“向阳3号”起重机是一台全迥转式的电动轮胎动臂起重机,它由起升机构、变幅机构、迴转机构、行走机构、转
At the end of May 1972, a “5-ton tire boom crane” was manufactured from Xiangyang 3 (Figure 1). After the assembly of the aircraft, a series of heavy load tests were carried out, and vertical transportation of small and medium-sized components and sub-three tons deep beams, element plates, roof panels, and bricks, mortars and other materials was successively performed at five construction sites. So far, 120 taiwan assignments have been completed. First, the structure and characteristics “Xiangyang 3” crane is a fully revolving electric vehicle jib crane, which consists of lifting mechanism, luffing mechanism, turning mechanism, walking mechanism, turn