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液压挖掘机的回转时间约占整个工作循环时间的60%左右,能量消耗占25～40%,回转系统的发热量占总发热量的30～40%。因此,合理确定回转机构传动方式和结构方案,正确选择回转机构诸参数,对提高生产率和功能利用率,改善技术经济指标有重要意义。转台上部转动惯量通常采用经验公式计算。按经验公式计算的结果与主机实际转动惯量相差较大,难以据此准确地选择回转机构诸参数。这里介绍我们模拟挖掘机回转工况在台
The hydraulic excavator revolution time accounts for about 60% of the entire working cycle time, energy consumption accounts for 25 to 40%, and the calorific value of the rotary system accounts for 30 to 40% of the total calorific value. Therefore, a reasonable determination of the slewing gear transmission method and structure scheme, and correct selection of the parameters of the slewing gear are important for improving productivity and functional utilization and improving technical and economic indicators. The upper moment of inertia of the turntable is usually calculated using an empirical formula. The results calculated by the empirical formula are quite different from the actual rotational inertia of the host, and it is difficult to accurately select the parameters of the rotary mechanism. Here’s our simulation of the rotating condition of the excavator on the bench