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我公司于1999年至2004年分别安装并投入使用了多台GQ1018型固定式电动起重机,用于港口货物搬运。为了提高作业效率及作业范围,我们将其吊臂加长了4m,但改进后出现了新的问题。1.存在问题(1)原变幅电动机功率不足原变幅电动机型号为YZR W160L-6,功率为11kW。将吊臂加长4m后,由于吊臂质量增加,变幅、起升钢丝绳长度加长,造成变幅电动机负荷增大,经常出现起重机满载变幅时动作缓慢以及变幅电动机发热现象,显然该型号电动机功率不足。
My company in 1999 to 2004 were installed and put into use more than one GQ1018 fixed electric crane for port cargo handling. In order to improve work efficiency and work area, we extended the boom by 4m, but new problems appeared after the improvement. 1. Existing problems (1) The original amplitude motor power shortage The original amplitude motor model YZR W160L-6, the power of 11kW. After the boom is extended by 4m, due to the increase of the boom mass, luffing, the length of the hoisting wire rope is lengthened, the load of the luffing motor is increased, and the crane often operates slowly when the full load amplitude is changed and the luffing motor generates heat. Obviously, the model motor Insufficient power.