Working conditions and performance indicators of hydraulic system elements of mobile machinery

Abstract

EN: Construction and road machinery includes motor graders, bulldozers, excavators, scrapers, specialized vehicles, agricultural machinery includes forage harvesters and grain harvesters, etc. In these machines, due to its advantages, hydraulic drive has found wide application. More than 90% of single-bucket excavators produced in the country have a hydraulic drive. The share of construction mechanization equipment with a hydraulic drive exceeds 50%. In mobile agricultural machinery, a hydraulic drive for controlling working equipment has found 100% application, and hydraulic transmission is used in almost all combines of both domestic and foreign production.This is confirmed by the analysis of literary sources [1], which showed that modern combine harvesters DON- 1500/1500B/1500M/2600/091, Yenisei-1200/950/960/9, forage harvesters KSK-100, DON-750/680/680M, Polissya-250, mower-conditioners DON- 800, KPS-5G, root and shoot harvesters RKM-4, RKM-6, KS-6B, concrete mixer trucks SB-92V/159B/172-1/237, SMB-060, as well as foreign equipment from corporations "John Deere", "Claas", "Case", "Massey Ferguson" and others, are equipped with various hydraulic systems that include a volumetric hydrostatic drive of the transmission (ГСТ).