Calculation method of the working body of a hydraulic excavator

Abstract

This article discusses the method of calculating the design of a hydraulic excavator with an additional working body in the form of a milling cutter for cutting hard rock, spent asphalt, frozen soils. The review, collection and analysis of patents, copyright certificates on the designs of technical solutions for multifunctional structures of the working body of a hydraulic excavator were made. The general provisions of digging are considered, cutting forces are determined with simultaneous use of the bucket and cutting disks. A patent has been filed for a working equipment of a single-bucket excavator that includes, as an additional organ, a disk milling cutter that allows simultaneous destruction and excavation of asphalt concrete during the stripping works. Computer simulation of multifunctional working equipment of single-bucket hydraulic excavator was carried out. It was determined that the modernization of the working body through the introduction of cutting disks will improve the performance and quality of excavation work performed by the excavator.