Repeatedly usable hydraulic stepping elevating system

Abstract

The invention provides a repeatedly usable hydraulic stepping elevating system. An elevating device is located at the upper part of a pile locking device, and the elevating device and the pile lockingdevice can be in fixed connection through bolts; the inner wall of a supporting cylinder body of the elevating device is fixedly provided with an upper pile clamping device; the bottom end of the upper pile clamping device is connected to multiple elevating oil cylinders; the bottom ends of the elevating oil cylinders are jointly connected to a lower pile clamping device; and the inner wall of astructural cylinder body of the pile locking device is welded with an upper pile fixing device, an upper pile locking device, a lower pile locking device and a lower pile fixing device from top to bottom. Through the design of split connection of the elevating device and the pile locking device, a set of the elevating device can be repeatedly used on different platforms; high installation precision assembly and installation of equipment can be conveniently realized by utilizing the positioning and centering of pile leg short sections, so that the dismounting and installation efficiency of theequipment can be enhanced; and through the adoption of the independent pile locking device, the total costs of the equipment can be reduced, the utilization rate of the equipment can be enhanced, thefixing costs of the equipment can be decreased, and high earning rate can be finally realized.

Description

technical field [0001] The invention relates to a hydraulic lifting device, in particular to a reusable hydraulic stepping lifting system. Background technique [0002] In marine engineering, the jack-up platform has a wide range of applications. Because of its characteristics of mobility, quick positioning, and simple construction, it is widely used in early reservoir surveys, offshore platform drilling, workover, platform equipment maintenance, and small oilfield exploitation. All aspects have played an important role. Existing platform lifting devices mainly include rack and pinion lifting devices and stepping hydraulic lifting devices. Compared with the rack and pinion lifting device, the stepping hydraulic lifting device has the advantages of low manufacturing precision, stable and reliable work, and economical cost, and is widely used in China. [0003] A previous patent for a stepping hydraulic lifting device (CN 202099793 U) for self-elevating platforms has disclos...

AI Technical Summary

Problems solved by technology

[0003] A previous patent for a stepping hydraulic lifting device (CN 202099793 U) for self-elevating platforms has disclosed a stepping hydraulic lifting device, but due to the construction of multiple self-elevating platforms, multiple sets of lifting devices are required The lifting device accounts for about 15% to 30% of the cost of the platform system. The cost of the large-tonnage lifting system will be even higher, and the platform will not move for a long time after it is in place. The long-term idle of the lifting device will cause a lot of waste of resources

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