Методы определения усилий сопротивления копанию рабочим оборудованием бульдозера

Abstract

The paper presents a method for determining the forces of resistance to digging by a bulldozer blade on the basis of the analysis of the processes occurring during the separation of the chip from an array of ground as well as during the movement of the drawing prism. The analysis of the methods used in determining the forces of resistance to digging is made. The design scheme, based on which the characteristic geometrical elements of the working equipment and the drawing prism are worked out, has been well-grounded. With the help of the proposed methods the forces of resistance to digging, arising on the working equipment, used in serial technique, are analyzed. The possibility of analyzing of a large number of parameters of the working equipment that affect the forces of resistance to digging, compared with the used method, is found out. The comparison of the mean values of the forces of resistance to digging showed the adequacy of the results obtained with the proposed methods. A way to optimize the parameters of the blade is outlined, the results are obtained that allow to make a conclusion about the possibility of such optimization. The conclusion about the prospects of the proposed methods of calculation is made.