Longitudinal rigidity controllable trolley positioning system

Abstract

The invention provides a longitudinal rigidity controllable trolley positioning system which comprises a fixing pile, a trolley main body, a trolley advancing subsystem and a trolley pitching buffering subsystem. The fixing pile has a working state and a standby state and is used for positioning a ship body in the working state; the trolley main body is connected with the fixing pile and is mounted on the ship body; the trolley advancing subsystem is connected with the trolley body and the ship body and can adjust the distance between the trolley body and the ship body; and the trolley pitching buffering subsystem is installed on the trolley body and movably matched with the ship body. According to the longitudinal rigidity controllable trolley positioning system, the trolley body is elastically connected to the ship body in the pitching direction through the rigidity-adjustable trolley pitching buffering subsystem and one group of single-turning-point trolley advancing subsystems, sothat the rotating freedom degree and pitching return rigidity of the trolley body relative to the transverse axis of the ship body are increased, and the problem that a traditional steel pile positioning system cannot conform to pitching movement of the ship body is solved; and meanwhile, pitching bending moment borne by the trolley positioning system is transmitted and absorbed through the pitching buffer subsystem, and the effect of reducing the pitching bending moment peak value is achieved.

Description

technical field [0001] The invention relates to the technical field of engineering ships, in particular to a positioning system for a trolley with controllable longitudinal stiffness. Background technique [0002] Large-scale engineering ships usually set up a trolley positioning system to achieve precise positioning and displacement of the ship. The trolley positioning system is usually arranged in the slot of the trolley at the end of the bow or stern. During work, the steel pile is first inserted into the seabed through the steel pile lifting device to complete the positioning; further, the traveling cylinder is used to push and pull the hull Perform ship shifting. During the shifting process, the control system relies on the travel sensor of the trolley to send an indication signal to accurately control the shifting distance of the ship, so that the precise positioning and shifting of the ship can be realized, and the production efficiency can be significantly improved....

AI Technical Summary

Problems solved by technology

The single steel pile trolley positioning mechanism includes a steel pile, walking trolley, and steel pile lifting device; the three-cable positioning mechanism is equipped with three positioning cables, and each positioning cable is equipped with a power retracting device, and the end of the positioning cable is installed. There are positioning anchors, but the design cannot achieve adaptive adjustment, and the movement is not flexible enough

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