An electric drive active heave compensation marine winch

Abstract

The invention discloses an electrically-driven active heaving supplementing type marine winch. The electrically-driven active heaving supplementing type marine winch comprises a cable coiling and uncoiling system, an automatic cable arranging system, a braking system and an active heaving supplementing system; the cable coiling and uncoiling system comprises a coiling block supporting bottom frame, a coiling block and a main transmission system; the main transmission system is mounted at one side of the coiling block, and while a brake disc is arranged at the other side of the coiling block; the braking system is arranged on the brake disc; the automatic cable arranging system is positioned at the back of the coiling block; the active heaving compensating system is respectively connected with the active transmission system, the automatic cable arranging system and the braking system. According to the marine winch, an AC variable frequency electrically-driven single-shaft structural form is adopted; compared with the traditional hydraulic-driven winch, the electrically-driven active heaving supplementing type marine winch has the characteristics of being convenient to operate, fast to lower down and lift, small in noise, small in size, compact in structure, high in energy conversion efficiency, and free of environmental pollution and damage.

Description

technical field [0001] The invention relates to a marine winch, in particular to an electrically driven active heave compensation marine winch. Background technique [0002] Marine winches mainly refer to winches used for lifting and lowering heavy objects by relying on scientific research ships, marine resource exploration ships, marine engineering auxiliary ships, submarine pipe-laying ships and other marine engineering ships. The operating environment of marine winches is harsh, the working load is unstable, and the requirements for safety and reliability are high. The marine winch must have a heave compensation function that adapts to the ups and downs of the waves, a sufficiently large drum size and rope winding capacity, a cable discharge mechanism that can coordinate with the drum, and a safe and reliable braking device. [0003] There are mainly two types of marine winch structures, namely, single-drum integrated winch and separate winch retraction system in which t...

AI Technical Summary

Problems solved by technology

However, the structure of this type of marine winch system is relatively complex, and there is a risk of hydraulic or pneumatic working fluid leakage

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