The invention discloses a pulley mechanism for an offshore platform crane. The pulley mechanism comprises a crane jib, and further comprises a pulley assembly, wherein a lifting rope system is arranged on the crane jig, the lifting rope system penetrates through the pulley assembly, a fixing shaft is arranged on the crane jib, one end of the pulley assembly is sleeved on the fixing shaft, one endof the pulley assembly is matched with the fixing shaft, and the pulley assembly rotates relative to the fixing shaft; a lifting rope limiting mechanism is movably arranged at the other end of the pulley assembly through a rotating shaft, and the lifting rope limiting mechanism rotates around the rotating shaft; and the center line of the fixing shaft is perpendicular to the center line of the rotating shaft. The pulley mechanism for the offshore platform crane has the beneficial effects that the lifting range of the crane is enlarged, and meanwhile, the wear and the impact of a lifting rope on a pulley block are reduced, and the service life is prolonged.
本发明公开了一种用于海上平台起重机的滑轮机构,包括起重机吊臂,所述起重机吊臂上配有吊绳系统,还包括滑轮组件,所述吊绳系统穿过滑轮组件,所述起重机吊臂上安装固定轴,所述滑轮组件的一端套在固定轴上,所述滑轮组件的一端与固定轴形成配合,所述滑轮组件相对于固定轴转动;所述滑轮组件的另一端通过转轴活动安装吊绳限制机构,所述吊绳限制机构围绕转轴转动;所述固定轴的中心线与转轴的中心线垂直。本发明的有益效果是,扩大了起重机的起吊范围,同时又将的降低了吊绳对滑轮组的磨损和冲击,延长了使用寿命。
Pulley mechanism for offshore platform crane
用于海上平台起重机的滑轮机构
2020-05-19
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
Crane pulley block, crane and crane pulley block adjusting method
Europäisches Patentamt | 2023
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