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TD—40下旋转塔式起重机,系上海宝山县农机厂1978年产品。原回转机构为二套蜗轮减速箱传动,没有同步伺服机构且制造精度差,致使运转不平稳,功率消耗大,零部件易损坏,影响施工。同时生产厂家已于1982年转产,不再提供零配件,给维修工作也带来很大困难,于是,我们对此塔吊进行了改造。在保证安全、力矩的前提下,选用一套XLE—84—1/289的行星摆线针轮减速机,扭矩为4.5kN.m,速比为1:289,使速比、扭矩都满足于设计、使用的要求,再增加液力偶合
TD-40 rotary tower crane is a product of Shanghai Baoshan County Agricultural Machinery Factory in 1978. The original slewing mechanism was provided with two sets of worm gear box transmissions, which had no synchronous servo mechanism and had poor manufacturing accuracy. As a result, the operation was not smooth, the power consumption was large, and the parts were easily damaged, which affected the construction. At the same time, the manufacturer had already changed production in 1982, no longer provided spare parts, and brought great difficulties to maintenance work. Therefore, we modified this tower crane. Under the premise of ensuring safety and torque, a Planetary Cycloid reducer XLE-84-1/89 is used. The torque is 4.5kN.m and the speed ratio is 1:289, so that the speed ratio and torque are satisfied. Design, use requirements, and then increase fluid coupling