CRANE APPARATUS

PURPOSE: A crane device is provided to reduce the capacity of a driving motor by balancing the torques acting on paired drums in the whole area of the movement of a hoisting accessory in a crane device. CONSTITUTION: The hoisting accessory(18) is traversed by winding and unwinding wire ropes(21),(22...

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Bibliographic Details
Main Authors MASUMOTO SHINICHI, ICHIKIZAKI TETSUO, HIRANO TATSUYA, ABIRU HISATOKU, YASUNAGA KAZUYUKI, CHIKURA TAKASHI, OKADA TAKASHI, MASUMOTO MASANORI
Format Patent
LanguageEnglish
Korean
Published 15.03.2001
Edition7
Subjects
CAPSTANS
CRANES
HAULING
HOISTING
HOISTS
LIFTING
LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES
PERFORMING OPERATIONS
TACKLES, e.g. PULLEY BLOCKS
TRANSPORTING
WINCHES
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Summary:PURPOSE: A crane device is provided to reduce the capacity of a driving motor by balancing the torques acting on paired drums in the whole area of the movement of a hoisting accessory in a crane device. CONSTITUTION: The hoisting accessory(18) is traversed by winding and unwinding wire ropes(21),(22),(27),(28) by rotating rotary drums(15),(16) by the driving of a traverse motor(41), continuously variable transmissions(47),(52) are mounted for changing a rotating speed of the rotary drums(15),(16, and a controller(65) controls the speed change of the non-stage transmissions(47),(52) for balancing the forces received by the drums(15),(16) from the wire ropes(21),(22),(27),(28). 본 발명은 크레인 장치에 관한 것이다. 조구는 횡행 모터의 구동에 의해 회전 드럼을 회전시킴으로써 와이어 로프를 권취하거나 풀도록 횡행된다. 회전 드럼의 회전 속도를 변경시키기 위한 무단변속기가 제공된다. 제어 장치는 와이어 로프에 의해 드럼상에 부여된 힘이 평형을 이루도록 기어 변속 방법으로 무단변속기를 제어한다. 따라서, 드럼 쌍상에서 작용하는 토오크는 조구가 이동하는 모든 영역에서 상쇄되며, 이에 의해 구동 모터의 용량이 감소될 수 있다.
Bibliography:Application Number: KR20000046055