RESEARCH PAPER
Influence of the movement of involute profile gears along the off-line of action on the gear tooth position along the line of action direction
1
Lublin University of Technology, ul. Nadbystrzycka 36, 20-618 Lublin, Poland
Publication date: 2021-12-31
Eksploatacja i Niezawodność – Maintenance and Reliability 2021;23(4):736-744
HIGHLIGHTS
- Algorithm for finding the exact value of normal backlash is presented.
- Influence of gear parameters on normal backlash for gear OLOA displacement is checked.
- Dynamic simulation is performed and several aspects are analyzed.
KEYWORDS
ABSTRACT
When gears change their distance along the off-line of action (OLOA) direction, this affects the distance between the working surfaces of the meshing teeth along the line of action (LOA). This effect is usually neglected in studies. To include this effect precise equations are derived for spur gears. The analysis is carried out for the general case of spur gears with shifted profiles frequently used in the industry. The influence of OLOA gear displacement on LOA direction is also a function of gears parameters. An analysis is conducted, and the impact of parameters such as module, pressure angle, gear ratio, and the number of teeth is determined. As an example, a simulation of a 12 DOF analytical model is presented. The movement of gears along OLOA is caused by a frictional force that can be high during tooth degradation e.g. scuffing. Results show that when the movement of gears along the OLOA direction is significant, its influence on the distance between the mating teeth should not be neglected.
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Influence of Gear Eccentricity with Non-Parallel Axis on the Dynamic Behaviour of a Gear Unit Using a Gear Slice Model with 26 Dof
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| eISSN: | 2956-3860 |
| ISSN: | 1507-2711 |
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