Gears are the machine elements used widely for transmission of torque and motion it follows that transmission of power. In applications the main aim is to transmit torque gears usually rotate unidirectional whereas in applications where main aim is to transmit motion gears usually rotate bidirectional. In both cases, even if rotates unidirectional or bidirectional, a certain amount of space (free angular movement usually called “backlash”) between meshing teeth flanks are allowed for functional reasons. Backlash is a need for proper gear mesh also a defect if it is not controlled closely. One of the gear drive types used in robot, like critical applications is planetary gearbox. Therefore, establishing backlash value in planetary gearboxes is a practical problem for critical industries. In this thesis, pertinent parameters effecting backlash of a planetary gearbox will be determined and relations between each parameter and backlash will be formed. Assuming that an assembly line of a pair of gears are supplied with hundreds of driving and driven gears each of which was measured, and all measured data are stored in a data base. The software will estimate likely maximum and minimum backlash of a pair selected. Thus, a method of assembly procedure will be performed a range of backlash for planetary gearboxes. Such selected pairs with targeted backlash range is predicted via the software and it will help speed up the assembly process and reduce the number of rejected for planetary gearboxes assemblies.
DOI: https://doi.org/10.13140/rg.2.2.16503.55209
Publish Year: 2021
