Variable sheave block

The present invention relates to a variable sheave block, which is installed on a lower end of a crane to coil wire. More specifically, the present invention relates to a variable sheave block having a movable pulley which is capable of moving up and down individually. The variable sheave block comp...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIM, JIN YONG, YOON, HYO HAN
Format: Patent
Sprache:eng ; kor
Schlagworte:
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Beschreibung
Zusammenfassung:The present invention relates to a variable sheave block, which is installed on a lower end of a crane to coil wire. More specifically, the present invention relates to a variable sheave block having a movable pulley which is capable of moving up and down individually. The variable sheave block comprises: a first pulley module having a plurality of first pulleys composed of a fixing pulley; and a second pulley module having a plurality of second pulleys which are composed of the movable pulley and connected to each of the first pulleys through the wire. Moreover, at least one of the second pulleys can be separated from the other second pulleys to be individually moved. 크레인 하단에 설치되고 와이어가 권취되는 가변형 시브블록에 관한 것으로서, 더욱 상세하게는 개별적으로 상하이동이 가능한 움직도르래를 포함하는 가변형 시브블록이 제공된다. 가변형 시브블록은 고정도르래로 이루어진 복수 개의 제1 도르래를 포함하는 제1 도르래모듈, 제1 도르래와 각각 와이어로 연결되며 움직도르래로 이루어진 복수 개의 제2 도르래를 포함하는 제2 도르래모듈을 포함하되, 제2 도르래는 복수 개 중 적어도 하나가 나머지로부터 분리되어 개별 이동이 가능하다.