借助一种专门设计的能准确测定破碎净功耗的双摆锤冲击破碎装置,对破碎过程功耗理论进行研究。建立了一个新的破碎功耗数学模型——线性组合方程式,并得到很好的实验验证。研究结果表明:1）用于破碎的功耗具有二成分性,所提出的线性组合式从另一角度证明“大量的粉碎现象是介于三大理论之间的”;2）破碎事件发生时,外力对物料施加的能量密度决定某种破碎功耗理论对该破碎过程的适用程度,即能量密度越大,过程功耗越接近面积学说,反之,体积学说更适用。 With a specially designed double-pendulum impact crusher that can accurately determine the net power consumption of crushing, the theory of power consumption in crushing process is studied. A new mathematical model of power dissipation, a linear combination equation, is established and verified by experiments. The results show that: 1) the power consumption for crushing has a dichotomous nature, and the proposed linear combination proves from another perspective that “a large amount of crushing phenomena is between three theories”; 2) when a crushing event occurs , The external force on the material to impose the energy density of a broken power theory to determine the degree of application of the crushing process, that is, the greater the energy density, the process power consumption closer to the area theory, on the contrary, the volume theory is more applicable.