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由于我国旋转开沟机在铣盘内表面具有内抛刀这一特点,苏联学者们早些时候推导出的旋转开沟机的理论计算公式不能完全适应这种情况,计算值与实测值误差较大。但是迄今为止,我们还不得不采用这一套公式来计算我国的旋转开沟机。为了完整地计算旋转开沟机的旋转功率,作者采用了国外关于综合比阻的原理,简化地求导出旋转开沟机铣盘切抛功率的计算公式。并以辽宁省农业机械化研究所研制的红旗-100旋转开沟机在广东省光明农场圳美分场的试验电测数据的计算值与用该公式计算值对比,其平均相差只有6.7%。对于土方作业机械,可以认为这种精确度是令人满意的。
Due to the fact that the rotary trencher in our country has the characteristic of inner-cutter on the inner surface of the milling disc, the theoretical formula of rotary trencher derived by the Soviet scholars earlier can not fully adapt to this situation. The error between the calculated value and the measured value is more Big. But so far, we have to use this set of formulas to calculate our country’s rotary ditching machine. In order to completely calculate the rotational power of rotary ditching machine, the author adopted the principle of comprehensive proportional resistance in foreign countries and simplified the formula for calculating the power of cut-and-throw rotary milling machine. And with the Liaoning Provincial Institute of Agricultural Mechanization developed red flag -100 rotary trencher in Guangming Farm, Guangdong Province, Mei-Mei field test calculated values calculated using the formula compared with the average difference of only 6.7%. For earthmoving machinery, this accuracy can be considered as satisfactory.