| 摘要 |
PURPOSE:To automatically excavate the plane surface of the ground including two points by a method in which an operating board to send out operating commands to an hydraulic excavator and a controller to be operated on the basis of detection signals are provided, and two points on the ground surface to be excavated are given by operation of the operating board. CONSTITUTION:An hydraulic excavator consists of a boom 8 supported on a vehicular body 5 with a boom angle detector 31, an arm 10 pivotally supported on the boom 8 with an arm angle detector 32, and a supporter 12 pivotally supported on the soil discharge plate 28 with a blade angle detector 33. In a controller 35 to operate the driven on the basis of commands from the operating board 34 to sent out commands by operation by an operator man and detection signals of the angle detectors 31, 32 and 33, reference data are calculated from two points of the ground surface to be excavated, given by the soil discharge plate 28. According to the deviation from the detection signals, the plate 28 is driven controllably. The ground surface to be excavated can thus be simply set up, and the efficiency of land-grading operation can be enhanced. |
