《工程机械》1990年第2期刊登的“混凝土搅拌输送车搅拌过程的定量分析”一文,对混凝土在搅拌筒内的运动作了定量分析,读后感到对于混凝土在筒内的周向运动机理,需进一步分析研究。本文就此谈谈个人粗浅的看法。文献[1]推荐用下式表达距搅拌筒中心为γ的壳的剪应力: (?)式中,T_o为筒体受到的扭矩,L为壳长,δ_1为考虑壳上扭矩与筒的扭矩差异而定的系数,暂定δ_1=0.6～1,δ_2为考虑坍落度、水灰比、砂率、 In the article “Quantitative Analysis of the Mixing Process of Concrete Mixing and Conveying Vehicles” published in the 2nd issue of “Construction Machinery” in 1990, a quantitative analysis was made of the movement of concrete in a mixing drum. After reading, it was felt that the mechanism of the movement of concrete in the cylinder was circumferential. Need further analysis and research. This article talks about the individual’s superficial views. In [1], it is recommended to use the following expression to express the shear stress of the shell from the center of the mixing drum to γ: (?) Where T_o is the torque to the cylinder, L is the length of the shell, and δ_1 is to consider the torque on the shell and the torque of the cylinder The coefficients determined by the differences are tentatively determined as δ_1 = 0.6 to 1, and δ_2 is taken into consideration for slump, water-cement ratio, sand rate,