Match each gear system configuration with its resulting mechanical properties.
- Simple train: 15-tooth drive gear directly meshing with a 60-tooth driven gear.Torque is multiplied by 4; rotational direction is reversed.
- Idler train: 60-tooth drive gear, 25-tooth idler gear, and 15-tooth driven gear.Output speed is 4 times the input speed; rotational direction is unchanged.
- Compound train: 20-tooth drive gear driving a 40-tooth gear on a countershaft; a 10-tooth gear on the same countershaft drives a 30-tooth final gear.Overall mechanical advantage is 6; final gear rotates in the same direction as the input gear.
- Rack and pinion: 12-tooth pinion gear meshed directly with a flat, toothed rack.Rotational motion is converted into linear motion.
Cevap
The simple train multiplies torque by 4 and reverses direction. The idler train quadruples speed and keeps the same direction. The compound train provides a mechanical advantage of 6 and keeps the same direction. The rack and pinion converts rotational motion to linear motion.
Each specific gear arrangement produces distinct mechanical outcomes based on the ratio of teeth between the driving and driven gears, the number of intermediary gears, and the physical shape of the gears involved.
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Anahtar Kavram
Calculating gear ratios and tracking rotational direction across simple, idler, compound, and rack-and-pinion trains.