Load Moment Indicator is a safety protection device applied to boom type lifting machinery, it can prevent the crane due to overload and operation errors caused by accidents, so that the safe use of the crane to achieve standardization and scientific. Its essence is a safety accessory to provide overload protection, often used in lifting equipment, lifting torque once exceeded the limit can automatically break, stop action to protect the equipment.
The Load Moment Indicator uses the moment balance principle to calculate the actual lifting load. According to the principle of moment balance, the equivalent mass of the boom at the head position is calculated when the boom is not loaded. Because the equivalent mass of the boom is different at different lengths and angles, an infinite number of values need to be calibrated.
Because of the existence of boom, the algorithm of Load Moment Indicator is different from that of truck crane, so a specific no-load calibration algorithm should be proposed to equate the dead weight of boom and boom in the boom head. According to the structure and force characteristics of the crane with folding arm, the mathematical model of the working device is established, and the no-load calibration is realized by calibrating the weight and center of gravity of the lifting arm.
Function:
Data Display: Display current weight, height, radius, angle
Danger Warning: Overload and over-range alarm prompts
overload record: Store overload records for two weeks
wireless: Customizable wireless transmission, remote security monitoring
