| 摘要 |
PURPOSE:To perform proper excavation, by a method wherein a cylinder for spread bottom excavating bit is connected to a cylinder for copy on a ground through a hydraulic circuit, excavation date is measured by various sensors, and is processed by a computer to display the results in a display. CONSTITUTION:A hydraulic cylinder 8 for elevating excavating bit 2 and a hydraulic cylinder 9 for unfolding a blade for a spread bottom excavating bit 3 are connected in series through a hydraulic cylinder 12 for copy installed on a ground. A spread bottom amount is electrically detected by a display gauge 14 of the cylinder 12 for copy, and the spread bottom amount is directly read by the use of an indicator 15. Further, an excavating load, excavating torque, and an excavation hydraulic force are measured by a load cell 16 and pressure gauges 18 and 19, and are always inputted to a microcomputer system 20 for processing. |
