Hydraulic lifting device capable of automatically dropping and automatic pile dropping method thereof

Abstract

The invention discloses a hydraulic lifting device capable of automatically dropping and an automatic pile dropping method thereof. The hydraulic lifting device capable of automatically dropping comprises a gauge pile, an upper ring beam, a lower ring beam and lifting oil cylinders; the upper ring beam or the lower ring beam is fixedly connected with a hull, the lifting oil cylinders are longitudinally connected with the upper ring beam and the lower ring beam, and the relative lifting and dropping between the upper ring beam and the lower ring beam are achieved through being driven by the lifting oil cylinders; the gauge pile vertically penetrates through the upper ring beam and the lower ring beam and is connected with the upper ring beam and the lower ring beam in a sliding mode, the gauge pile fixes the relative position with the upper ring beam and the lower ring beam through a pin mechanism, and the hydraulic lifting device capable of automatically dropping further comprises a clamp holder used for clamping and fixing the gauge pile.

Description

technical field [0001] The invention relates to the technical field of marine engineering, in particular to a self-lowering hydraulic lifting device and a self-lowering pile lowering method thereof. Background technique [0002] The existing hydraulic ring beam lifting device uses the cooperation of the upper and lower ring beams to move the legs up and down step by step, and is powered by an independent hydraulic drive system to ensure that the legs can overcome the impact caused by mud, sand and gravel. Resistance and the weight of the lifting platform itself, inserting (pulling) the legs into (pull off) the seabed and lifting the entire ship. The process from lowering the pile legs to inserting them into the seabed can be decomposed into two steps. First, lower the pile legs until they touch the bottom and contact the seabed. Processes become instrumented. Generally speaking, the resistance that the pile leg receives when laying down the pile is mainly the resistance of...

AI Technical Summary

Problems solved by technology

However, the existing hydraulic ring beam lifting device adopts a step-by-step descending method for both pile loading and pile insertion, which not only slows down the pile, but also requires additional energy consumption

However, because the existing hydraulic ring beam lifting device generally fixes the ring beam and the pile legs through bolts, if the bolts are simply pulled out to make the pile legs fall naturally, the bolts will be easily damaged

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