FIELD: machine building.
SUBSTANCE: actuator includes hydraulic mounts installed on cargo platform, reverse valve the first outlet hole of which is interconnected via main lines to piston cavities of hydraulic mounts, and its second outlet hole is interconnected with stock cavities of hydraulic mounts, and pump-motors installed in the above main lines, the number of which is equal to the number of hydraulic mounts. Shafts of pump-motors are connected to each other. Each pump-motor is interconnected with the first outlet hole of reverse valve and with piston cavity of the corresponding hydraulic mount. Above-valve cavities of controlled non-return valves are interconnected with piston cavities of hydraulic mounts, and under-valve cavities of those valves are interconnected with additional distribution valve that is made in the form of two-position three-way distribution valve. Reverse and additional distribution valves are interconnected with power supply and tank.
EFFECT: shortening of actuator operating period at performance of lifting and levelling operations of cargo platform; reduction of the volume occupied with actuator.
2 cl, 1 dwg
