目的 为满足吸风输送机对片状物料稳定输送的要求，对吸风输送机透过面积进行分析计算。方法 以物料为研究对象并建立受力模型；对透过面积建立数学模型，分析相关参数对透过面积的影响。 结果 为保证物料的稳定输送，吸风输送带运行加速度、吸风箱对片状物料产生吸附力的面积、吸风箱对物料的吸附负压等需满足一定关系；推导出吸风输送机总透过面积的计算公式，得出了吸风输送带、吸风箱上孔半径、间距对透过面积大小及变化情况的影响。 结论 根据吸风输送机设计需求，选取相关参数获得相应的透过面积，为吸风输送机的设计与优化提供了一定的依据。

The work aims to analyze and calculate the penetration area of suction conveyor so as to meet the requirement of stable conveying of slice material by suction conveyor. By taking the material as the search object and establishing the force model, the mathematical model of the penetration area was established to analyze the influence of the relevant parameter on the penetration area. In order to ensure the stable transportation of materials, the operating acceleration of the suction conveyor belt and the area of the absorption force generated by the suction box on the slice materials had a certain relationship with the adsorption negative pressure of the suction box on the materials. The formula for calculating the total penetration area of suction conveyor was deduced, and the influence of the radius and spacing of the holes on the suction conveyor belt and the suction box on the penetration area and variation was obtained. According to the design requirement of suction conveyor, obtaining the corresponding penetration area by selecting relevant parameters can provide a basis for the design and optimization of the suction conveyor.