The Taiwan Ocean Research Institute (TORI) is preparing the launch of the new 2.700 ton – ORV, Multi purpose Oceanographic Research Vessel, “RESEARCH V”. The vessel that is being constructed in the shipyard Jong Shyn Shipbuilding Group in Kaohsiung will be launch in June, and will be completed by 2012.
IBERCISA will supply oceanographic winches for the “Research V” vessel. The main equipment supplied was designed to load 8.500 m of Ø38.1mm cable. It is composed by a constant tension tractor winch. With a pull of 15 Tn and a maximum speed of 80 m/min, which was designed to work with fiber cable, type Technora Aramid.
For a proper work with this fiber cables, the tractor winch has been designed to work with individual driven sheave. 8 of 11 sheaves are operated by 8 motors in total. Each motor works individually over its sheave. Motors are controlled automatically changing the sheave speed according to the enlargement produced during the cable loading. In this way, cable deformities are absorbed and friction damages are avoided.
The traction winch that works completely coordinated with the tractor winch is composed by a grooved drum with capacity for 8.500 m (Ø38.1mm), and by an automatic control to keep the same tension on each of the layers, increasing the speed progressively according to the work layer. A sheave managed by an independent spooling device drives the cable to be loaded.
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Source: ibercisa , May 13, 2011; Image: narl