Motorized Scotch Yoke Mechanism Piston

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Scotch yoke mechanism is a type of a reciprocating motion. It makes use of a slotted slider based system to convert circular motion into linear motion and vice versa. This mechanism is used to drive the piston. The widest usage of this mechanism is in pumping systems for oil, gas and other liquids. So here we study this mechanism by fabrication of a small piston driven by this mechanism. We use a motor to drive the circular disc. The disc has a small yoke in order to connect with the reciprocating arm. The arm has a slotted area just wide enough to adjust the yoke. The other end of the arm is fitted in a piston cylinder. The whole setup is fabricated to get the desired motion at least friction. This can also be used as a small part of other larger projects where linear motion is needed.

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  • Smooth Motion
  • Dual Motion Conversion
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