Synthesis of basic geometry parameters of excavator working equipment

Abstract

Problem. Single-bucket excavators have become one of the most popular machines today, which are widely used to perform a variety of construction works. The working area or service area is one of the main characteristics of the work equipment of the manipulation type. It must meet certain requirements, which are: the largest digging depth, unloading height and digging radius at the level of the parking lot. To ensure the parameters of the given working area, it is necessary to correctly select the basic geometry of the working equipment: the length of the boom and the handle, the turning radius of the bucket edge. Goal. The purpose of the work is to automate the synthesis of basic geometry parameters of the hydraulic excavators, according to the specified parameters of the service area (working area). Methodology. A system of non-linear equations establishing a relationship between the geometric parameters of the working equipment and the parameters of the working area was obtained. Results. The software for the OS Windows was developed. The program outputs not only numerical results. To visualize them, contours of the resulting working area are built. Originality. The relationship between the geometric parameters of the working equipment and the parameters of the working area has been established. A mathematical model and software for automating the synthesis of geometric parameters of working equipment have been developed. Practical value. The developed software can be applied not only at the design stages of new types of excavator working equipment, but also in the process of preparing the machine for specific types of work. The proposed approach can also be extended to the synthesis of parameters of the lever mechanisms of other construction machines, in particular, the working equipment of loaders, looseners, etc.