起升载荷是指起升质量的重力。在起重机设备中,起升质量包括允许起升的最大物品、取物装置(下滑轮组、吊钩、吊梁、抓斗、容器、起重电磁阀)、以及悬挂挠性件和其他随同升降的设备质量。起升高度小于50m时,起升钢丝绳的质量可以不计。
结论吊重起升加速度对起重机动载荷的影响较大,特别对主臂内的动弯矩的激励更加明显。
The influence of load hoisting acceleration on dynamic forces is obvious, especially on dynamic bending moment of the main boom.
对仿真模型在额定工况时的起升、下钻过程进行了仿真运算,得到了游动系统中快绳、死绳、各游绳及井架上的最大动载荷和动载系数。
By analyzing the hoisting and feeding-off models under the rated load, the maximum dynamic loads and dynamic coefficients of fast line, dead line, every travelling line and derrick were obtained.
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