Abstract

A non-uniform model of the load per unit of length distribution of helical gear with modification and misalignment was proposed based on the meshing stiffness, transmission error, and load-balanced equation. The distribution of unit-lineload, transmission error (TE), and contact press of any point on the contact plane were calculated by the numerical method. The feature coordinate system was put forward to implement the helical preliminary design and strength rating.The thermal elastohydrodynamic lubrication (EHL) model of helical gear was established, and the pressure, film, and temperature fields were obtained from the thermal EHL model.The maximum contact temperature and minimum film thickness solved by thermal EHL were applied to check the scuffing load capacity. The highest flash temperature and thinnest film occur in the dedendum of the pinion. The thermal EHL method to evaluate the scuffing load capacity is effective.

Highlights

  • A non-uniform model of the load per unit of length distribution of helical gear with modification and misalignment was proposed based on the meshing stiffness, transmission error, and load-balanced equation

  • High contact helical gear was established, and the pressure, film, and temperature of lubricant and tooth surfaces at the temperature fields were obtained from the thermal elastohydrodynamic lubrication (EHL) model. instantaneous contact position may lead to the break

  • It is known that the load distribution depends on the meshing stiffness of the tooth pair, and the load per unit of length is different at any point in the contact plane

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Summary

Lubrication Simulation of Helical Gears

Abstract- A non-uniform model of the load per unit of length this method, the author analyzed the bending strength distribution of helical gear with modification and misalignment and pitting load capacity of helical gears. The maximum contact temperature and minimum film thickness solved by thermal EHL were applied to check the scuffing load capacity. It is known that the load distribution depends on the meshing stiffness of the tooth pair, and the load per unit of length is different at any point in the contact plane. The scuffing load capacity can be evaluated by the maximum contact temperature and minimum film thickness, which can be solved by the thermal EHL method. This paper proposes a method to study the load per unit of length distribution of all the points on contact plane of helical gears accurately based on the balanced Load equation, transmission error, and meshing stiffness. When a pair of tooth meshing, the sum deformation along the action line can be described as the Equ.6。

Where δ PV
Lead crowning CCββ tip relief End relief
Where h
The film center temperature distribution is similar to
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