4/30/2023 0 Comments Movealong crane componentsThis is because the WS leg has to support more moment forces. In general, the WS leg is thicker than the LS leg. The height of the cranes has been increasing over the years due to the increasing stacking height of containers above the ship’s deck (now up to 11 containers above decks and 12 below deck). The legs (waterside leg or WS and landside leg or LS) of the crane generate the height.The cabin can be accessed by stairs or elevator. The cabin is the part of the crane housing its operator.The spreader is the device that picks up the containers and is mounted on the trolley with cables.Trolleys have to support the hoisting mechanism and the mechanism that enables the trolley to ride over the main boom. The trolley is the supporting structure for the spreader and the cabin. The trolley is the part of the crane that drives over the mean boom.These cranes are suitable for maximum crane height restrictions (for example, near airports) and reduced visual impact. Low profile STS cranes exist where the boom is able either to push forwards or to push in above vessel deck. Manufacturers provide the market with many and different types of main booms. This factor may complicate the berthing of vessels, and that is why the main boom has a hinge point just above the tip of the quay in order to be able to be lifted, so the ship has no limitation because of the crane. For the stability of the spreader, it is essential that the main boom is as close to the maximum stacking height of the ship. The main boom is the part that is hanging over the ship.The basic structure of portainers consists of the following parts: The largest modern container cranes are classified as ultra post-Panamax, some having a 120-tons load capacity.
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