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盘转式压砖机的电动机功率计算,以往一直采用两种计算方法。一是莎波日尼柯夫提出的,另一种是布拉文与西列欧克提出的。两者都是通过对压砖机的压制机构,进行受力分析,计算出在压制工作行程中的每一瞬时曲轴上的驱动扭矩。不过,前者是根据所计算出的各瞬时扭矩,作出扭矩图,然后找出平均扭矩,按此计算电动机所需功率;而后者是根据所计算出的瞬时扭矩,取其中的最大值来计算电动机功率。
The calculation of the motor power of a disc rotary press has been used in the past for two calculation methods. The first one was proposed by Shapirnynikov, and the other was proposed by Bravin and Sileook. Both are subjected to force analysis through the pressing mechanism of the press, and the driving torque at each instant crankshaft in the pressing working stroke is calculated. However, the former is based on the calculated momentary torque, make a torque map, and then find the average torque, according to this calculation motor power required; while the latter is based on the calculated instantaneous torque, whichever is the maximum to calculate the motor power.