Hydraulic-Drive-Relieving Device for Road Construction Machines

Modern specialized and general-use machines intended to work on the ground surface are equipped with a hydraulic drive of working attachments. Hydraulic-driven machinery and packaged tools are better in terms of speed and the evenness of the reverse or differential control of working attachments, changing the working machine position, the accuracy of positioning, dosing the force’s action on the working attachments, etc. The working pressure in hydraulic drives has been optimized. However, there is a possibility of unauthorized discharge of hydraulic fluid. Therefore, an innovative engineering solution is suggested for the protection of hydraulic drives. The analysis of the operation modes of road construction machines and other traction transport vehicles shows that high-pressure hoses of the hydraulic system are destructed and the hydraulic fluid is discharged into the atmosphere even under nominal operation conditions, which affects the ecological safety of the environment including the fauna and flora.