APPARATUS OF MEASURING CENTER OF GRAVITY OF WIND POWER GENERATOR BLADE

The purpose of the present invention is to provide a device to measure a center of gravity of an aerogenerator blade which measures the center of gravity of a blade in a state of more stably support the blade, and increases a measuring accuracy. A weight measuring unit for a root part measures a wei...

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Bibliographische Detailangaben
Hauptverfasser: LEE, BO BAE, HONG, GEUN BIN, JU, YUN JAE, KANG, HYUNG GOO, KIM, CHUL SU
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:The purpose of the present invention is to provide a device to measure a center of gravity of an aerogenerator blade which measures the center of gravity of a blade in a state of more stably support the blade, and increases a measuring accuracy. A weight measuring unit for a root part measures a weight of a root part by mounting the root part of the aerogenerator blade. Moreover, a weight measuring unit for a tip part is spaced from a weight measuring unit for the root part, and measures a weight of a tip part by mounting the tip part of the blade. In regards to this, the weight measuring unit for the tip part, comprises: a mounting element for the tip part; a plurality of sling bars arranged along a longitudinal direction of the tip part, and mounted on the mounting element for the tip part to cover and support a lower surface of the tip part along with both side surfaces; and a weight measuring part for the tip part mounted on a lower side of the mounting element of a tip part to measure the weight of the tip part supported by the sling bars. In addition, a distance measuring unit measures each distance of a weight measuring position of the root part and a weight measuring position of the tip part from an edge part of the root part. Also, a controller calculates the center of gravity of the blade based on the weight data measured from the weight measuring unit for a root part and the weight measuring unit for a tip part respectively, and the distance data measured from the distance measuring unit. 풍력발전기용 블레이드의 무게중심 측정장치에 관한 것이다. 루트부용 무게측정유닛은 풍력발전기용 블레이드의 루트부를 안착시켜 루트부의 무게를 측정한다. 팁부용 무게측정유닛은 루트부용 무게측정유닛으로부터 이격되어 배치되며, 블레이드의 팁부를 안착시켜 팁부의 무게를 측정한다. 여기서, 팁부용 무게측정유닛은 팁부용 안착대와, 팁부의 하부면과 양 측면들을 함께 감싸서 지지하도록 팁부용 안착대에 팁부의 길이 방향을 따라 배열되어 장착된 복수의 슬링 바(sling bar)들, 및 슬링 바들에 지지된 팁부의 무게를 측정하도록 팁부용 안착대의 하측에 장착된 팁부용 무게측정부를 포함한다. 거리측정유닛은 루트부의 가장자리 위치로부터 루트부의 무게측정 위치와 팁부의 무게측정 위치까지의 각 거리를 측정한다. 컨트롤러는 루트부용 무게측정유닛 및 팁부용 무게측정유닛으로부터 각각 측정된 무게 데이터들과 거리측정유닛으로부터 측정된 거리 데이터들을 토대로 블레이드의 무게중심을 산출한다.