Protection system of hydraulic drive of road construction machinery

Tendencies of development of ways of protection of a hydraulic drive of vehicles from unauthorized emission of working liquid at destruction of high pressure holes are analyzed. The analysis of work of traction vehicles, detects the reasons at which there is a destruction of high pressure hoses of hydraulic system and the emission in the atmosphere of working liquid that violate environmental safety. Technical solution is proposed for elimination of negative consequences of destruction of high pressure hoses, which author’s rights are protected by the patent. Its essence is, that the locking device is further supplied with a rod with the axial through channel, which will allow a plunger in case of a gap of head pressure hoses reliably to block radial holes in a rod, to provide that high reliability of the overlap of supply of working liquid in head pressure hoses in case of their destruction and effective protection of hydraulic drive against unauthorized emission of working liquid.