HYDRAULIC ACTUATOR OF A PREMIERLY MOBILE UNIT WITH A ROLLING PART Russian patent published in 2017 - IPC B66F11/04 B66C23/80 

FIELD: engines and pumps.

SUBSTANCE: hydraulic actuator comprises a control system including detectors pressure sensors longitudinal and transverse leveling mounted on the chassis front and rear hydraulic cylinders (DG) and the pump unit (AT) with a tank, three position solenoid operated gidroraspredediteli (TG). Signaling pressure hydraulically connected to the piston cavities DG. The pump unit through a first Tg, and a pressure discharge line fluidly connected with the piston rod and the cavities, lift cylinder swash portion (QP) and through the control system electrically connected to said sensors leveling. Hydraulic comprises unilateral hydrolocks respectively and the piston rod of the hydraulic cylinder lifting CN cavities which are formed each with the possibility of fixing in the open position by a ball-lock control pressure when feeding from the HA via a first Tg. The front of the GD are capable of fluid communication with the AT through the second TG, and the rear of the GD - in the third and fourth, respectively, TG. The pressure detectors and temperature compensators are connected to the lines connecting the piston with the respective cavity DG TG. The temperature compensator is hydraulically connected with the rod end of the corresponding GD. DG configured gidrovintovym actuator comprising a motor, a mechanism kinematically coupled with the screw pair configured to provide fixation DG in the working position of the mobile unit. Hydraulic fluid communication has the ability to NA through the fifth TG. Hydraulic drive provides two-position directional control valve, solenoid operated, through which the piston cavity DG additionally have the opportunity to messages through AT blocking check valves and configured to determine the flow rate limiters. In the embodiment kachayuschasya part configured to set the transport and launch container (TLC). The latest version may contain a hydraulic hydromechanical locking device in the transport position, respectively, CN and TLC.

EFFECT: enhanced functionality and reliability of a hydraulic drive of the mobile unit with the swinging part, precision leveling of the chassis.

5 cl, 12 dwg