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发明公开
CN107503696A 辅助上卸扣装置及上卸扣方法 无效 - 驳回

辅助上卸扣装置及上卸扣方法
摘要：
本发明公开了一种辅助上卸扣装置，包括底座(3)和承托座(1)，所述承托座(1)通过可升降支架(2)设置在底座(3)上面，所述底座(3)上设置有驱动承托座(1)升降的升降装置(7)，所述承托座(1)的上面形成向下凹的半圆柱面(6)，所述半圆柱面(6)上设置有若干个滚动体。在进行辅助上卸扣时，将提升短节吊至辅助上卸扣装置上方并平稳放置于圆弧承托座的半圆柱面上，边旋转链钳边滑动辅助上卸扣装置进行上扣或卸扣作业。本发明结构简单，加工方便，投资成本低，可重复使用，应用前景良好，能够广泛应用于海洋钻井平台，现场操作简单，效率高，无作业风险。本发明还公开了采用上述辅助上卸扣装置进行上扣和卸扣的方法。
摘要（英）：

The invention discloses an auxiliary makeup and breakout device. The device comprises a base (3) and a supporting base (1), the supporting base (1) is arranged at the upper surface of the base (3) through a liftable support (2), the base (3) is provided with a lifting device (7) for driving the supporting base (1) to lift and fall, semi-cylinder surfaces (6) which sink downwards are formed in the upper surface of the supporting base (1), and several rolling bodies are arranged on the semi-cylinder surfaces (6). When auxiliary makeup and breakout is conducted, a lifting sub is hoisted to the portion above the makeup and breakout device and steadily placed on the semi-cylinder surfaces of the circular supporting base, chain tongs are rotated, and the auxiliary makeup and breakout device is slid at the same time to conduct makeup or breakout work. The makeup and breakout device is simple in structure, convenient to process and low in investment cost, can be repeatedly used, is good in application prospect, can be widely applied to a marine drilling platform, and is simple in field operation, high in efficiency and free of operating risk. The invention further discloses a method for adopting the auxiliary makeup and breakout device to conduct makeup or breakout.

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