Single pull macgregor type hatch cover.pdf - Cochin University of ...
Single pull macgregor type hatch cover.pdf - Cochin University of ...
Single pull macgregor type hatch cover.pdf - Cochin University of ...
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Pulley for rope<br />
Diameter: 2cm<br />
Width: 1cm<br />
Numbers: 2<br />
5.1.12 Rope<br />
The rope was selected according to the safe working load <strong>of</strong> the model.<br />
Length: 300cm<br />
Diameter: 3mm<br />
5.1.13 Reduction Gear Design<br />
The selected motor was 60 rpm speed and for the correct working <strong>of</strong> the <strong>hatch</strong> <strong>cover</strong>,<br />
the team designed the reduction gear to reduce the speed into 13 rpm.<br />
Number <strong>of</strong> teeth in bigger gear: 66<br />
Number <strong>of</strong> teeth in smaller gear: 13<br />
Actual speed: 60 rpm<br />
Reduced speed:<br />
5.1.14 Ladder Design<br />
×60=11.81(12rpm)<br />
The ladder design was taken from the MV IRAN Ship.<br />
Height: 36cm<br />
Width: 4.7cm<br />
Numbers <strong>of</strong> steps: 11<br />
Gap between steps: 3.5cm<br />
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