METHOD FOR CONTROL OF MOBILE LOADED CRANE STABILITY AND DEVICE FOR ITS REALISATION Russian patent published in 2009 - IPC B66C15/00 B66C23/90 

FIELD: machine building.

SUBSTANCE: invention is related to the field of machine building, namely, to production of cranes, and may be used for control of mobile loaded crane stability, mostly jib self-propelled cranes. Method consists in the fact that load moment is calculated and compared to permissible limit, depending on data obtained signal is generated to actuate those actuating mechanisms, which reduce load moment. Additionally speeds of pressure change in outrigger hydraulic cylinders are measured, and their sign is identified, control combinations of pressure change speeds are made, which are then compared to the reference ones, depending on match or mismatch of obtained control combinations with the reference ones, signal for control of parameters that affect stability is generated. Device comprises hydraulic line of outriggers, mechanism for boom swing, analog-to-digital transducer, board microprocessor, board microprocessor memory comprises mathematical model of mobile crane made with the possibility of change depending on type of crane. Pressure sensors are additionally included into hydraulic line of outriggers, board microprocessor has communication with pressure sensors, mechanism for boom swing is equipped with controlled axial-piston hydraulic actuator.

EFFECT: increased efficiency and higher safety level of loading-unloading works.

3 cl, 3 dwg