Pitch point on cam is

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BPSC AE Paper VI Mechanical 2024 Official Paper

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Answer 1

Explanation:

Pitch Point on Cam

The pitch point is a specific point on the cam pitch curve that is crucial in determining the cam's operational characteristics. It is defined as the point on the cam pitch curve where the pressure angle is maximum. The pressure angle is the angle between the direction of the follower's motion and the normal to the cam profile at a given point.
The pitch point is significant because it directly influences the transmission of motion and force between the cam and the follower. A high-pressure angle at the pitch point can lead to inefficient force transmission and increased wear on the cam and follower surfaces. Thus, understanding the pitch point helps in designing cams that ensure smooth and efficient motion transfer.