Watts indicator mechanism project- A double lever mechanism

Watts indicator mechanism

1. TOM PROJECT GROUP-2 Watts Indicator Mechanism (Double Lever Mechanism)

2. The Watt’s Indicator Mechanism is a simple mechanism consisting of a piston used to sense the external pressure. The piston is connected to a link and the link is, in turn, connected to a V- Shaped chain. One end of the V- Shaped Chain is connected to a point which is pivoted and fixed. The other end of the V- Shaped Chain is free to move over a vertical scale. The point, worth noting, in the Watt’s Indicator Mechanism is that the free link that moves over the scale generates a straight line. This is the primary reason, why the Watt’s Indicator Mechanism is also called as the straight- line mechanism.

3. The four links are : fixed link at A, link AC, link CE and link BFD. It may be noted that BF and FD form one link because these two parts have no relative motion between them. The links CE and BFD act as levers. The displacement of the link BFD is directly proportional to the pressure of gas or steam which acts on the indicator plunger. On any small displacement of the mechanism, the tracing point E at the end of the link CE traces out approximately a straight line.

4. DIMENSIONS FOR WATTS INDICATOR MECHANISM(ALL DIMENSIONS IN MM) LINK-1(FIXED) LINK-2(AC)<LINK-3(CE) LINK-4(BFD)-(BF<FD) EXAMPLE:AC=30 MM, CE=50 MM, BF=15MM, FD=20 MM

5. GROUP -2 APURV KRISHNA(111/22) ARUN KUMAR(112/22) ARYAN(113/22) ASANKO BISWAS(114/22) ASHUTOSH CHANDRA(115/22)