Applications of Four-Bar-Linkage:
The four-bar-Linkage mechanisms have been discussed at length in the preceding posts. It's time to see how these have been used for driving various machines.
Explanation:
Suppose the follower of a four-bar-linkage is made infinitely long, what will happen ------- in such an event, a point on the Axis of the pair, joining the connecting link to the follower, would move back and forth in a linear motion. In a practical application the follower becomes a Sliding-Block or a Piston. In both cases, namely, Sliding-Block or Piston, both have a constrained to move is a straight line by a guide or a cylinder respectively.
If we use Grashof-Linkage (shown above), in which one of the links adjacent to the shortest link is fixed (in the above Fig. the link AD of the Grashof chain is fixed), the mechanism thus formed is a Slider-Crank-Mechanism. Please see the Fig. posted hereunder:
Applications of the Piston-Crank-mechanism is widely found in the Diesel and petrol engines. The outline-diagram of the 'V' Block Engine is posted below. Please look at the arrangement and compare it with the arrangement used in the 'V'-Block diesel engines.
We will try to understand the hypothesis of infinitely long follower with further clarity in subsequent post.
The four-bar-Linkage mechanisms have been discussed at length in the preceding posts. It's time to see how these have been used for driving various machines.
Explanation:
Suppose the follower of a four-bar-linkage is made infinitely long, what will happen ------- in such an event, a point on the Axis of the pair, joining the connecting link to the follower, would move back and forth in a linear motion. In a practical application the follower becomes a Sliding-Block or a Piston. In both cases, namely, Sliding-Block or Piston, both have a constrained to move is a straight line by a guide or a cylinder respectively.
If we use Grashof-Linkage (shown above), in which one of the links adjacent to the shortest link is fixed (in the above Fig. the link AD of the Grashof chain is fixed), the mechanism thus formed is a Slider-Crank-Mechanism. Please see the Fig. posted hereunder:
Applications of the Piston-Crank-mechanism is widely found in the Diesel and petrol engines. The outline-diagram of the 'V' Block Engine is posted below. Please look at the arrangement and compare it with the arrangement used in the 'V'-Block diesel engines.
We will try to understand the hypothesis of infinitely long follower with further clarity in subsequent post.
No comments:
Post a Comment