The paper deals with the geometry and kinematics of right-anglebevel gears that feature low tooth count. Right-angle bevel gearsare a particular case of intersected-axis gearing (further Ia -gearing) with an arbitrary value of shaft angle. In this paper,gears that have 12 teeth and fewer are referred to as thelow-tooth-count-gears (or LTC – gears, for simplicity). Whenoperating, right-angle bevel gears often generate vibration andproduce an excessive noise. Dynamic loading of the gear teeth canresult in the tooth failure. These problems become more severe inbevel gearings with low tooth count. The performed analysis showsthat inequality of base pitches of the gear and mating pinion isthe root cause for insufficient performance of LTC – gears. In mostapplications, the main purpose of Ia – gearing is to smoothlytransmit a rotation and torque between two intersected axes. Gearpairs that are capable of transmitting a uniform rotation from thedriving shaft to the driven shaft are referred to as thegeometrically accurate intersected-axis gear pairs (or, in otherwords, the ideal intersected-axis gear pairs).
- Edition:
- 14
- Published:
- 10/01/2014
- Number of Pages:
- 12
- File Size:
- 1 file , 430 KB
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