在大型水输机中,转子是一个非常重要的零件,它的形状复杂,技术条件要求很高,要求能承受冲击和旋转力的作用,并须耐磨触。转子质量的好坏,直接关系到发电功率。72,500瓦千水轮机转子(见图1、图2)的轮廓尺寸为:直径4580毫米,高1800毫米,最大壁厚约300毫米,最薄处约30毫米,铸件净重38000公斤,加工余量6200公斤,浇冒口重 In a large water turbine, the rotor is a very important part, its complex shape, high technical requirements, required to withstand the impact and rotational force, and wear-resistant touch. The quality of the rotor is directly related to the power generation. The outline dimensions of the 72,500 W 1000W turbine rotor (see Fig. 1 and Fig. 2) are 4580 mm in diameter and 1800 mm in height. The maximum wall thickness is about 300 mm, the thinnest point is about 30 mm, the casting weight is 38000 kg and the machining allowance is 6200 kg , Riser mouth heavy