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Problem urgency. To improve the efficiency of road construction machines, especially in high altitude conditions, has been proposed a new design of a bulldozer-loader with transforming working equipment.  Purpose. Methodology development to determine the mass of proposed working body, i.e. the mass of bucket, excluding the mass of material that may be in the bucket.  Methods. Analyzed one of the main elements of the working body - the bucket. Further, using the formulas for determining the volume, we encountered that the lateral surface has a complex configuration, i.e. there are no clearly defined parameters like length and width.  Results. Obtained the dependence (mathematical model) for determining the mass of the bucket, which is easily used in the process of automatic calculation. As a result, reflected the main parameters, that influence to the indicators of reliability, durability of the metal structure and increase its operational properties and productivity.  Conclusions. According of dependence, by varying the parameters, it is possible to easily optimize the bucket volume without changing other parameters. Also, substituting the values into the dependence, it is possible to optimize the lifting capacity, productivity and other necessary parameters for the design of the working body and the base machine.

The methods for determining the bucket parameters of a bulldozer-loader with transforming working equipment