Crank and Slotted Lever Mechanism

Definition

The crank and slotted lever mechanism is a type of single-slider crank chain mechanism, inversion, and four-bar mechanism. The crank and Slotted Lever Mechanism is one of the two types of Quick Return mechanisms. It is also called the Crank and Slotted Quick Return Mechanism.

Every machine and machine tool works with a principle to perform a specified action. Few actions are reciprocating, and few are rotary, which are sourced from an electrical motor. As we know, the quick return mechanism is a type of mechanism where the return stroke of the ram is quicker than the forward stroke. So, this type of mechanism will be used to convert the rotary motion of the motors into the required action and operation.


                                 Illustration of the Mechanism

Construction of the Mechanism

Ram or Lever: It is the sliding pair that moves in to and fro motion.

Crank: The Crank is the rotary part (turning pair) that will help the whole construction convert the rotary motion of the gear into the sliding motion of the ram.

Gear: The gear is the rotary part (one of the turning pairs) that is connected to the motor. (the source)

Slotted Bar: The slotted bar is one of the three turning pairs and is connected to the gear. It is the connector between gear and crank that helps convert the rotary motion of the gear into sliding motion with the help of its to-and-fro motion.

                    Crank and Slotted Lever Mechanism using SOLIDWORKS

Advantages

  1. The crank and Slotted Mechanism is used to convert the rotary motion of the motor to reciprocating motion.
  2. The construction is very simple, and even the operating process is easy.
  3. There is no need for high maintenance costs.
  4. The working of the crank and slotted mechanism is also simple.

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Model Files

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