Auto leveling system of outrigger for mobile crane

The present invention relates to an outrigger self-leveling system of a mobile crane, and its object is generated the outrigger extension and contraction in automatically controlling the levels of the operator, not the judgment by the naked eye of the operator entered on the shop floor and each outrigger detecting a reaction force to the pressure sensor to monitor the driver and working subsidence such as due Outrigger force reducing mobile cranes that can prevent the equipment rollover accident during work may cause to warn the driver and automatically stopping the crane work in advance Outrigger is a self-leveling system to provide. The present invention provides the operator directly inputs the length of the outrigger to the operating conditions input device 11, and reads out the length of the outrigger detected by the length sensor 8 from the central control unit (5), Au to electrical signals operating the solenoid valve 4 by entering the data of the horizontal sensor 10 at the same time the method and the equipment for operating the central control unit (5) solenoid to electrical signals accordingly valve 4 of the trigger control valve to thereby outrigger control valve 1 is stopped or operating the outrigger horizontal cylinder (2) and the vertical cylinder (3) by adjusting the flow rate of. Mobile crane, outriggers, a pressure sensor, the central control device, the solenoid valve