SAFETY SYSTEM FOR LOAD-LIFTING MACHINE Russian patent published in 2008 - IPC B66C13/18 B66C23/88 B66C23/90 

FIELD: hoisting and transportation machinery, particularly to control and protect hoisting machines against overload.

SUBSTANCE: system comprises the first control means group installed on support structure or on equipment parts not to be separated from structure. The first control means group includes digital data processing unit 2 having output connected to executive and signaling device 4, 5 units, the first data input-output unit 3 linked to digital data processing unit with two-directional data exchange channel, crane 6 parameter sensors and power supply unit 1. Power supply unit 1 has one clamp connected to load-lifting machine body and another clamp secured to power supply system bus. The second control means group is supported by movable structure or equipment to be demounted and includes crane parameter sensors 10. The first and the second control means groups are linked one to another through two-directional radioline. The first control means group is provided with the first receiving/transmitting radio station, independent power source 15 and switchboard 16.

EFFECT: increased safety system reliability, simplified assemblage and installation thereof on load-lifting machine.

1 dwg