Abstract
In order to solve the problem of Meshing Efficiency of spur-face gear sliding friction, a method for calculating the Meshing Efficiency of Spur-Face gear is proposed based on Elastohydrodynamic lubrication (EHL) theory. Through the Tooth Contact Analysis (TCA) and Loaded Tooth Contact Analysis technique (LTCA) method, the meshing process of the Spur-Face gear was simulated. The calculation model of Sliding friction coefficient was established by using non Newtonian quasi steady thermal Elastohydrodynamic lubrication (TEHL) theory, and the calculation model of Meshing Efficiency of Spur-Face gear was established. The influence of input torque and rotational speed on Meshing Efficiency is analyzed. The results show that Sliding friction coefficient is an important factor affecting the Meshing Efficiency of gears. Sliding friction coefficient is not the same at different positions of the tooth surface. Sliding friction coefficient is affected by input speed and input torque. This method provides a theoretical basis for further optimization calculation of Spur-Face gear.
Highlights
Gear drive as the most extensive mechanical transmission line, the transmission efficiency has important significance for saving energy
Based on the theory of Elastohydrodynamic lubrication, this paper presents a method for calculating the Meshing Efficiency of Spur-Face gear
The conclusions are as follows: 1. The tooth contact analysis (TCA) and the loaded tooth contact analysis technique (LTCA) are used to simulate the meshing process of the straight tooth face gear, which can better show the mechanical characteristics of each meshing position on the tooth surface, and better describe the sliding friction coefficient at different positions on the tooth surface
Summary
Gear drive as the most extensive mechanical transmission line, the transmission efficiency has important significance for saving energy. The Sliding friction coefficient of the contact line at each point is get by using TEHL theory, and the sliding friction power loss of the gear drive is obtained. The Loaded Tooth Contact Analysis (LTCA) of Spur-Face gear is a method of numerical simulation for the meshing process of gear teeth, which can obtain the normal load and load density at each discrete point in this paper [23].
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