CRANE CONTROL SYSTEM Russian patent published in 2018 - IPC B66C15/06 B66C23/90 B66C23/00 

FIELD: control systems.

SUBSTANCE: proposed crane control system. Crane (2) contains first boom (3) of the crane, the second boom of crane (4) located on first boom (3) at the first hinge angle, extension (5) with boom (6) located on second boom (4) of the crane at the second hinge angle. Retractable boom (6) of the crane can take various pushing positions. Crane control system (1) contains sensor (s1) for measuring retractable boom position (6) of the crane and memory (8) for entering values (e1, e2) of the limit values (g4, g5) of the crane operating parameter (2). For two positions (x1, x2) of retractable boom extension (6) of the crane, for fully retracted position (x1) of the extension of extension boom (6) of the crane and fully extended position (x2) of the extension of extension arm (6) of the crane,into memory (8) values (e1, e2) for maximum permissible limit values (g1, g2) are entered. Crane control system (1) contains overload control device (9). With the help of device (9) for controlling the overload, it is possible to set limit value (g1, g2) in system (1) of the crane control for one operating parameter of the crane (2). Using device (9) for controlling the overload, limit value (g1, g2) is set on the basis of entered values (e1, e2), depending on position (x1, x2) of the extension of extendable boom (6) of the crane. For another position (x3) of extension between introduced positions (x1, x2) of the extension of extendable boom (6) of the crane, it is possible to set limit value (g3) lying in magnitude between introduced values (e1, e2). Tap is also offered.

EFFECT: smooth transition from the high limit value of the allowable operating parameter of the crane to the reduced limit value of the working parameter is achieved and more efficient use of the potential of the crane based on the setting of limit values depending on the state of the boom extension of the crane.

19 cl, 19 dwg