Analysis of the Material and Design Modifications Influence on Strength of the Cycloidal Gear System

作者：Biernacki Krzysztof^*

来源：International Journal of Precision Engineering and Manufacturing, 2015, 16(3): 537-546.

DOI：10.1007/s12541-015-0073-6

• Cycloidal gears
• Plastic
• Stress
• Deformation
• Finite elements method

The working unit of the hydraulic gerotor machine is a system of cycloidal gears. In the paper, ways of increasing the load-carrying capacity of the plastic cycloidal gears have been presented. The objective has been achieved through of structural and material modifications. The modifications were introduced while making the numerical models of the cycloidal gear system. The fundamental feature of the modifications is the combination of a plastic and a steel core in the design of the cycloidal gear system. While examining the system, the influence of the plastic-steel combination on the stress and deformation distributions in the operation of the cycloidal gears was verified. The numerical analysis was conducted using the finite elements method. The results of the analysis show that the introduction of the modifications strengthens the cycloidal gear system. Therefore, the conclusion that a system can work in the fluid power gerotor machines dedicated to operating at higher working pressure p seems justified. A result of the analysis is a presentation of solutions which will enable the strengthening and a higher load-carrying capacity of the gear system. Another finding of the research was determination of the maximum value of working pressure p at which the hydraulic gerotor machines with the modified cycloidal gears can operate.

• 出版日期2015-3