एक शाफ्ट 80 rpm पर चलता है और बेल्ट परिचालन के माध्यम से दूसरे शाफ्ट को 150 rpm पर चलाता है। चालक पुली का व्यास 600 मिमी है। 1 बेल्ट की मोटाई 5 मिमी मानते हुए, संचालित पुली का व्यास क्या होगा?

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  1. 320.00 मिमी
  2. 300.12 मिमी
  3. 317.67 मिमी
  4. 304.85 मिमी

Answer (Detailed Solution Below)

Option 3 : 317.67 मिमी
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संकल्पना:

  • चालक शाफ्ट की गति, \( N_1 = 80 \, \text{rpm} \)
  • संचालित शाफ्ट की गति, \( N_2 = 150 \, \text{rpm} \)
  • चालक पुली का व्यास, \( D_1 = 600 \, \text{mm} \)
  • बेल्ट की मोटाई, \( t = 5 \, \text{mm} \)

चरण 1: प्रभावी व्यास में बेल्ट की मोटाई को ध्यान में रखना

प्रभावी व्यास बेल्ट की मोटाई से बढ़ जाता है:

\( D_{\text{eff1}} = D_1 + t = 600 + 5 = 605 \, \text{mm} \)

मान लीजिये कि संचालित पुली का प्रभावी व्यास \( D_{\text{eff2}} = D_2 + t \) है।

चरण 2: बेल्ट परिचालन के लिए गति अनुपात सूत्र लागू करना

गति अनुपात प्रभावी व्यास के व्युत्क्रमानुपाती होता है:

\( \frac{N_2}{N_1} = \frac{D_{\text{eff 1}}}{D_{\text{eff 2}}} \)

\( \frac{150}{80} = \frac{605}{D_2 + 5} \)

\( D_2 + 5 = \frac{605 \times 80}{150} \)

\( D_2 + 5 = 322.67 \, \text{mm} \)

\( D_2 = 322.67 - 5 = 317.67 \, \text{mm} \)

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