Longitudinal stiffness controllable trolley positioning system

Abstract

The invention provides a positioning system for a trolley with controllable longitudinal stiffness, which includes a fixed pile, the fixed pile includes a working state and a standby state, and is used for positioning the hull when in the working state; the main body of the trolley is connected to the fixed pile and installed on the On the hull; the traveling subsystem of the trolley is respectively connected to the main body of the trolley and the hull, and can adjust the distance between the main body of the trolley and the hull; the pitch buffering subsystem of the trolley is installed on the main body of the trolley and Cooperating with the movement of the hull, the present invention adopts a trolley pitch buffer subsystem with adjustable stiffness and a set of single-rotation point trolley travel subsystems to elastically connect the main body of the trolley to the hull in the pitch direction, increasing the The degree of freedom of rotation of the vehicle body relative to the transverse axis of the hull and the pitch recovery stiffness solve the problem that the traditional steel pile positioning system cannot comply with the pitching motion of the hull, and at the same time transmit and absorb the pitching of the trolley positioning system through the pitch buffer subsystem Bending moment, to achieve the effect of reducing the peak value of pitching moment.

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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