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钢坯料场龙门吊车大钩,额定每次有效起重量为20吨,平时用钢丝绳套住4～8根钢坯起落。为了能使许多钢坯,达到纵横交叉地排列,装卸和堆集时,以往是由人工握住吊钩,拉动吊钩下的重物,扳转90°角度,直到放稳后,才放下手中的吊钩,这样,日夜三班作业,劳动强度大,工效低,操作紧张,也不安全。我们在学习武汉江岸装卸公司经验的基础上,经过革新,改进成功一种电动旋转吊钩。投
Billet yard gantry crane hook, rated effective starting weight of 20 tons, usually with wire rope sets of 4 to 8 billet landing gear. In order to make many billet, to achieve vertical and horizontal cross-arrangement, loading and unloading and stacking, in the past is to hold the hook by hand, pulling the weight under the hook, pull the angle of 90 °, until it is stabilized, before dropping the hanging Hook, so that day and night three shifts, labor-intensive, low efficiency, tight operation, nor safe. We learn from the experience of Wuhan Jiang’an handling company, after innovation, to improve the success of a rotary electric hook. cast