It is a four-bar mechanism comprised of the fixed link, crank, pin sliding in the slot and a sliding pair. The electric motor runs the driving pinion at a uniform speed. Pinion transmits its motion to gear. Gear has a pin on its surface which is confined to slide inside the slot of a crank.

1. Gear Based
Quick Return
Mechanism

2. INTRODUCTION
It is a four-bar mechanism comprised of the fixed link, crank,
pin sliding in the slot and a sliding pair. The electric motor runs
the driving pinion at a uniform speed. Pinion transmits its
motion to gear. Gear has a pin on its surface which is confined
to slide inside the slot of a crank.

3. Diagram

4. AIMS & OBJECTIVES
1. Understanding of gear system
2. Low cost production

5. COMPONENTS
1. Battery
2. Hard board
3. Nut and bolts
4. Stand
5. Gears
6. Motor

6. APPLICATIONS
• Shaper machine
• Slotting machine
• Mechanical actuators
• Rotary internal combustion engine
• Mechanical cutter
• Air compressors
• Power saws

7. COST
COMPONENT COST QUANTITY
Nuts and bolts 70 6
MOTOR 350 1
BATTERY 1200 1
GEARS 150 2
SHAFTS 10 2
STAND 50 1
TOTAL 1830 Rs/-

8. GANTT CHART

9. BENIFITS
Rapid movement while return stroke. It is useful for conversion
of rotary motion in reciprocating motion. In some machines, the
process of material removal is carried out only in forward
stroke. Therefore the faster return stroke helps to minimize total
working time of machine.