METHOD FOR DETERMINING DANGEROUS PLACES OF BREAKAGE OF METAL CABLES AND NYLON HALYARDS, AND A DEVICE FOR PREVENTING ACCIDENTS DURING DESCENT AND LIFTING OPERATIONS

摘要

FIELD: accident prevention. ;SUBSTANCE: invention is aimed to prevent accidents during descent and lifting operations. The essence of the invention lies in the fact that the device for preventing accidents during descent and lifting operations contains a winch, a cable that passes through the pulley of the U-frame and is connected to the load, while the cable of the winch drum passes sequentially through the first brake of the cable, the first test pulley, the second test pulley and the second brake of the cable, and acoustic sensors are mounted in the axes of the first and second test pulleys, connected to a spectrum analyzer connected to an executive device, the outputs of which are connected to the first and second brakes of the cable and the drive winch drum, and the second input of the actuator is connected to the control panel, which is also connected to the spectrum analyzer. ;EFFECT: ensuring the possibility of reliable prevention of accidents during descent and lifting operations. ;1 cl, 1 dwg