fischertechnik Mechanisms

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Presentation transcript:

fischertechnik Mechanisms Principles of Engineering © 2012 Project Lead The Way, Inc.

Universal Joint Transmits power when shafts are not in line

Spur Gears Change speed, torque, and rotational speed

Idler Gear No effect on speed and torque, but input and output shafts turn in the same direction

Rack and Pinion Rack (in red) and pinion (in black) converts rotary motion of the pinion gear to linear motion of the rack Reversible, positive drive with no slipping

Crown and Pinion Mechanism reduces speed and increases torque Output shaft is at a 90-degree angle to the input shaft Gears rotate in opposite directions

Bevel Gears Gears increase torque or speed Output shaft is at a 90-degree angle to the input shaft Gears rotate in opposite directions

Worm Gear Gear increases torque and reduces speed Output shaft is at a 90-degree angle to the input shaft Direction of rotation can be reversed, but the output gear cannot drive the worm gear

Cam As a cam rotates the flat follower is raised and lowered, converting rotary motion to linear motion CAM LOBE FOLLOWER

Chain and Sprocket Chain and sprocket apparatus increases speed or torque Mechanism can run in reverse direction with no slipping Input and output shafts rotate in the same direction

Pulley and Belt Mechanism can increase torque or speed and can run in reverse Input and output shafts are parallel and rotate in the same direction The belt may slip

Motor Driven Worm Gear Gear reduces speed and increases torque Output shaft is at a 90-degree angle to the input shaft Direction of motion is reversible, but the output gear cannot turn the worm gear

Motor Driven Pulley and Belt Mechanism can increase torque or speed Input and output shafts are parallel and rotate in the same direction The belt may slip

Screw Mechanism converts rotary motion to linear motion and increases torque Direction of rotation is reversible