Problem #1 (30 pts) The figure below shows three spur gears meshed together in which gear A is a driver and transmits 3.2 kW, gear C is driven while gear B act as an idler in between gear A and C. Gear A rotates at a speed of 625 revolutions per minute (rpm) and number of teeth for all gears are shown in the figure. The pressure angle and module of gears are 20° and 5 mm respectively. Please make your own reasonable assumptions in case anything is missing from the given information. Based on the aforementioned given information about this gear train, please calculate: 40 teeth -90% B 70 teeth 50 teeth a. Pitch diameters of all three gears. (2+2+2 = 6 pts) b. The torque each shaft is needed to transmit. (2+2+2 = 6 pts) c. Please calculate and show (with the help of free body diagram) forces on each gear. (4+4+4 = 12 pts) d. The resultant force on the middle shaft which is carrying the idler gear B. (6 pts)

Solved: Problem #1 (30 pts) The figure below shows three spur gears meshed tog

Home
questions and answers
problem 1 30 pts the figure below shows three spur gears meshed togeth

Question

Problem #1 (30 pts) The figure below shows three spur gears meshed together in which gear A is a driver and transmits 3.2 kW, gear C is driven while gear B act as an idler in between gear A and C. Gear A rotates at a speed of 625 revolutions per minute (rpm) and number of teeth for all gears are shown in the figure. Th