To measure a load swing-angle of a crane quickly and accurately at a low cost.SOLUTION: A load swing-angle measuring device 50 for a crane comprises: three or more sound wave receivers M arranged in a specific load swing direction; a distance difference calculation unit 51 which calculates a distance difference from a sound source to each sound wave receiver M based on the deviation of the timing when each sound wave receiver M receives the sound generated by a suspended load supporting part or the suspended load supported by the suspended load supporting part; and a load swing-angle calculation unit 52 which calculates a load swing-angle in the specific load swing direction based on the position information of each sound wave receiver M and on the difference calculated by the distance difference calculation unit 51.SELECTED DRAWING: Figure 2
【課題】迅速且つ正確に低コストでクレーンの荷振れ角度を測定する。【解決手段】クレーン用荷振れ角度測定装置50は、特定の荷振れ方向に沿って配置された3つ以上の音波受信器Mと、吊り荷支持部又は吊り荷支持部に支持された吊り荷で発生した音を各音波受信器Mが受信するタイミングのずれに基づいて、音の発生源から各音波受信器Mまでの距離の差分を算出する距離差算出部51と、各音波受信器Mの位置情報、及び、距離差算出部51により算出された差分に基づいて、特定の荷振れ方向における荷振れ角度を算出する荷振れ角算出部52と、を備える。【選択図】図2
LOAD SWING-ANGLE MEASURING DEVICE FOR CRANE
クレーン用荷振れ角度測定装置
2020-07-09
Patent
Elektronische Ressource
Japanisch
IPC: | B66C Krane , CRANES |
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