Jinsi ya kukokotoa Gear Ratio
Gear Ratio ni nini?
Gear ratio is the speed reduction/increase between input and output shafts. It determines torque multiplication and shaft speeds.
Fomula
Ratio = N_input / N_output = N_driven / N_driver = T_output / T_input
Mwongozo wa Hatua kwa Hatua
- 1Ratio = N_input / N_output = N_driven / N_driver = T_output / T_input
- 2Spur gears: ratio = number of teeth on driven / number on driver
- 3Power is conserved: P = T × ω
Mifano Iliyotatuliwa
Ingizo
Input 1800 rpm, output 600 rpm
Matokeo
Gear ratio = 3:1 (3× speed reduction, 3× torque increase)
Power unchanged
Makosa ya Kawaida ya Kuepuka
- ✕Confusing speed ratio with force multiplication
- ✕Neglecting friction losses in extended calculations
Maswali yanayoulizwa mara kwa mara
Can any two gears mesh together?
No, they must have same pressure angle and pitch. Teeth must fit smoothly without interference.
How is efficiency handled?
Mechanical power loss (5-10%) converts to heat; P_out = P_in × η.
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