From the experiment and information given during lab we now understand the

From the experiment and information given during lab

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From the experiment and information given during lab, we now understand the importance of a differential gear system, gear ratios, and gear trains. We also have improved our knowledge over the procedure required to select a speed reducer. Overall, we understand that gear reducers lower the speed between a motor and the part it will be driving and we are also aware that the gear ratio and gear type will be dependent on the application it will be used for. Real World Applications Gear reducers are widely used in industrial plants, for many applications including conveyors, cranes, elevators, mixers, and crushers Exercise I: Part A
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Gear Specification / Part number Gear type Number of teeth Pitch diameter Diametral pitch Gear ratio for the pair H2472 Spur 72 3 24 1.33 H2496 Spur 96 4 24 L112Y Miter 24 1.5 16 1 L112Y Miter 24 1.5 16 H1616R Helical 16 1 16 2 H1632 Helical 32 2 16 Speed Gear Pair 1 Actual velocity ratio Theoretical velocity ratio N1 N2 5 28 22 1.27 1.33 7 43 32 1.34 1.33 9 58 42 1.38 1.33 Speed Gear Pair 2 Actual velocity ratio Theoretical velocity ratio N3 N4 5 22 22 1:1 1:1 7 32 32 1:1 1:1 9 42 42 1:1 1:1 Speed Gear Pair 3 Actual velocity ratio Theoretical velocity ratio N5 N6 5 22 11 2:1 2:1 7 32 16 2:1 2:1 9 42 21 2:1 2:1 Overall Speed Ratio = 72/32 = 2.25 Part B 1. Service Factor: 1.25 2. Overall drive ratio: 1750/36 = 48.61 3. Ratio of the worm gear reducer: 48.61/1.215 = 40 4. Actual torque at the reducer output shaft: 2000/1.215 = 1646
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