Manual lifting mechanism for fluid loading arm for ship on wharf

Abstract

The invention discloses a manual lifting mechanism for a fluid loading arm for a ship on a wharf. The manual lifting mechanism comprises a rack, wherein a rope sheave wound with a steel wire rope is arranged on the rack, a rope sheave shaft is arranged in the center of the rope sheave and fixedly connected with a driven shaft, a ratchet wheel is further arranged on the rope sheave shaft, a first gear is arranged on the driven shaft, a pawl corresponding to the ratchet wheel is arranged on the rack, the first gear is connected with a second gear through teeth, the second gear is arranged on a driving shaft, and a hand wheel is fixedly connected to the tail end of the driving shaft. According to the manual lifting mechanism for the fluid loading arm for the ship on the wharf, the rope sheave rotates when the hand wheel is rotated, and the pawl is shifted on the ratchet wheel; when the hand wheel rotates reversely, the pawl enters teeth of the ratchet wheel, so that the rope sheave is prevented from rotating reversely, and safe operation is guaranteed.

Description

Technical field [0001] The invention relates to a ship body loading and unloading equipment on a wharf, in particular to a manual lifting mechanism for a fluid loading arm for a wharf ship. Background technique [0002] When loading and unloading oil or other liquid chemicals to ships at the wharf, an oil transfer arm is needed. [0003] At present, there are two main structural types of oil pipeline knuckle boom oil transfer boom cranes used in oil tankers and chemical tankers: [0004] A single-pipe or double-pipe oil pipeline is laid directly on or inside the boom of a hose crane, with elbows and flanges welded at both ends of the pipeline, and then directly connected to the hose; [0005] The other is to lay a single-pipe or double-pipe oil pipeline on or inside the crane boom, and install a rotating joint on the rotating root of the boom and the rotating shaft concentrically. [0006] In the prior art, the hand wheel is generally turned manually, and the steel wire rope is release...

AI Technical Summary

Problems solved by technology

[0006] At present, the boom is generally turned by hand, and the boom is placed horizontally for oil delivery or vertically stowed by releasing or tightening the wire rope. However, manual rotation of the handwheel is difficult due to the heavy boom Time-consuming and labor-intensive, and the staff are prone to misoperation, causing the handwheel to reverse and the boom to reset, which is prone to accidents

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