MEASUREMENT AND DISPLAY OF LOAD OF EXCAVATING BLASTED GROUND

摘要

Measurement and a display of a load of digging a blasted ground which can contribute to accurate blasting. The operating direction of the backet of an excavator is detected by pressure switches (15 and 16), and the pressure PB of the bottom chamber 6SB of a backet cyclinder is detected by a pressure sensor (17). A processor (23) calculates the excavation position in accordance with the signals from a boom angle sensor (18), an arm angel sensor (19), a GPS (20) and a magnetic azimuth sensor (21), integrates the pressure PB in the ON-period of the pressure switch (15) and transmits the excavation position and the integrated pressure to a computer (30) through wireless transmitters/receivers (24 and 31). The computer (30) displays the map of the blast area and the blasting positions and superposes the transmitted excavation position on the map with a mark (x) and the transmitted integrated pressure with a figure. It is judged whether the blasting is proper or not by referring to the integrated pressure, and the judgement is utilized for the next blasting.