Consider a gear train with a pinion (driving gear), an idler gear and an output gear. The pinion shaft is rotating at 1,200 RPM and is transmitting 20 hp to the pinion. The overall train value is 2 to 1. The pinion has 20 full-depth teeth, a 20° pressure angle, and a diametral pitch of 4 teeth/in. The idler gear has 16 teeth. All gears are machined from round stocks of a low carbon steel. (a) Calculate: (1) the number of teeth on the gear, (2) the speed of the idler gear, (3) center-to- center distance between the pinion and the output gear, and (4) the height of the output gear teeth. (b) Calculate the output torque on the gear shaft, the transmitted load, and the total tooth load. (c) Determine a suitable face width if the maximum allowable stress is 15,000 psi. (c) Show how the tooth force fluctuates in each rotation of the output gear. What are the alternating tooth force, the mean tooth force and the R-ratio?
Consider a gear train with a pinion (driving gear), an idler gear and an output gear. The pinion shaft is rotating at 1,200 RPM and is transmitting 20 hp to the pinion. The overall train value is 2 to 1. The pinion has 20 full-depth teeth, a 20° pressure angle, and a diametral pitch of 4 teeth/in. The idler gear has 16 teeth. All gears are machined from round stocks of a low carbon steel. (a) Calculate: (1) the number of teeth on the gear, (2) the speed of the idler gear, (3) center-to- center distance between the pinion and the output gear, and (4) the height of the output gear teeth. (b) Calculate the output torque on the gear shaft, the transmitted load, and the total tooth load. (c) Determine a suitable face width if the maximum allowable stress is 15,000 psi. (c) Show how the tooth force fluctuates in each rotation of the output gear. What are the alternating tooth force, the mean tooth force and the R-ratio?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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