Importance

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Abstract

The present invention relates to a concave-convex arc line gear mechanism for parallel shaft transmission, which comprises a driving line gear and a driven line gear, axes of the driving line gear and the driven line gear being parallel to each other to form a transmission pair. The driving line gear is consisted of convex teeth and a driving wheel body, a surface of the convex tooth comprising a pair of convex arc-shaped tooth flanks and a tooth top surface The driven line gear is consisted of concave teeth and a driven wheel body, a surface of the concave tooth comprising a pair of concave arc-shaped tooth flanks and a tooth bottom surface A meshing track of the transmission pair during transmission is a space curve. One arc-shaped tooth flank of the driving line gear and one arc-shaped tooth flank of the driven line gear present a point contact of convex arc and concave arc at a meshing point. Tooth shapes of the driving line gear and the driven line gear are interchangeable, i.e., the driving line gear has concave teeth, while the driven line gear has convex teeth. The line gear mechanism of the present invention has high transmission ratio, high contact strength, high load-bearing capacity, wide range of application, and is easy to be machined, which is especially suitable for space-limited microminiature mechanical, micro mechanical and conventional mechanical applications.

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First Claim