24.04.2013 Views

A Text Book on Engineering Graphics - Central Board of Secondary ...

A Text Book on Engineering Graphics - Central Board of Secondary ...

A Text Book on Engineering Graphics - Central Board of Secondary ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Example 26:<br />

Soluti<strong>on</strong>:<br />

Example 27:<br />

Soluti<strong>on</strong>:<br />

0.25t<br />

MACHINE DRAWING<br />

Sketch freehand the Fr<strong>on</strong>t view, Top view and Side view <strong>of</strong> a woodruff key, suitable<br />

for a shaft <strong>of</strong> diameter 40mm. Give standard dimensi<strong>on</strong>s.<br />

Refer Fig 2.59<br />

t<br />

R=2t<br />

Fig 2.59<br />

Sketch freehand a woodruff-key in positi<strong>on</strong>, <strong>on</strong> a shaft <strong>of</strong> diameter 60mm, keeping<br />

the axis <strong>of</strong> the shaft parallel to V.P and H.P. Give standard dimensi<strong>on</strong>s.<br />

Refer Fig 2.60<br />

0.25t<br />

WOODRUFF KEY<br />

R=2t<br />

FRONT VIEW<br />

D<br />

40<br />

t = D<br />

6<br />

84 ENGINEERING GRAPHICS<br />

t<br />

R=2t<br />

SIDE VIEW<br />

R = 2t<br />

0.25t<br />

6.7 13.4 10<br />

WOODRUFF KEY<br />

0.5t<br />

Ød<br />

SECTIONAL SIDE VIEW<br />

WOODRUFF KEY WITH SHAFT<br />

Fig 2.60<br />

t<br />

FRONT VIEW<br />

TOP VIEW<br />

d 60<br />

0.25t<br />

0.5t<br />

0.25t<br />

2t 20<br />

1 0<br />

2.5<br />

5

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!