| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a load measuring device of a hydraulic shovel, capable of accurately recognizing weight of a load conveyed by an attachment of a front work machine. <P>SOLUTION: The load measuring device of a hydraulic shovel includes: cylinder driving means 22 for driving a boom cylinder 5 to extend and contract at a fixed speed on the basis of a driving speed detected in cylinder speed detection means; pressure sensors 11, 12 for detecting pressures on a bottom side and a rod side of the boom cylinder 5; cylinder support force computing means 31 for computing support force to a boom of the boom cylinder 5; posture detection means for detecting a posture of a front work machine 1; and load computing means 32 for computing the weight of scrap on the basis of the detected posture and the computed support force. The cylinder support force computing means 31 includes support force averaging means for averaging the support force when the posture detected in the posture detection means is the same in both cases of extending drive and shortening drive of the boom cylinder 5. <P>COPYRIGHT: (C)2013,JPO&INPIT |
