SELF-PROPELLED JIB CRANE Russian patent published in 2016 - IPC B66C23/36 

FIELD: transport.

SUBSTANCE: claimed crane comprises truck chassis, bearing frame mounted thereat, turntable to support the jib hardware, the main counterweight arranged at the turntable end from below, extra counterweight, remote supports and the chassis electrical equipment. The crane is equipped with the extra counterweight assembly remote control boards with current conducting cable. Said extra counterweight consists of the top and bottom parts, extra counterweight setting mechanism arranged inside the extra counterweight and composed of a self-contained hydraulic system including the ministration, two hydraulic cylinders coupled with the ministration pressure control valves via high-pressure lines. Said extra counterweight setting mechanism comprises the supply connector for connection to the chassis electrical equipment or to some other power supply, control connector for connection of the extra counterweight setting remote control board.

EFFECT: accurate setting of the counter weight, ease of servicing, ergonomic and remote control, fast assembly and diagnostics.

10 cl, 8 dwg