Curvilinear-tooth point-line meshing gear and processing method thereof

Abstract

The invention discloses a curvilinear-tooth point-line meshing gear, which is a curvilinear-tooth cylindrical gear. Tooth lines of gear teeth are curvilinear-tooth lines; the cross section of each gear tooth in a middle point of a tooth length direction is a middle cross section; each gear tooth adopts the middle cross section as a center, forms a left spin line from the middle cross section to the left end along the tooth length direction of each gear tooth, and forms a right spin line from the middle cross section to the right end along the tooth length direction of each gear tooth; the left spin line and the right spin line are symmetrical relative to the middle cross section; each tooth top is gradually narrowed and each tooth root is gradually thickened when each gear tooth extends to two ends along the middle cross section of each gear tooth; the radius of a concave curve of each curvilinear-tooth line on each gear tooth along the tooth length direction is larger than and equal to the radius of a convex curve of each curvilinear-tooth line on each gear tooth along the tooth length direction; the meshing manner is point-line meshing. The curvilinear-tooth point-line meshing gear provided by the invention has the advantages of high strength, long service life, low noise, no axial force in gear drive, and material saving, and in addition, a dynamic pressure membrane can be easily built between each two tooth faces, so that the bearing capacity can be improved, the tooth face abrasion is reduced, and the transmission efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of gears, and in particular relates to an arc-tooth-line-dot-line meshing gear and a processing method thereof. Background technique [0002] Cylindrical gear transmission is the most widely used type of gear mechanism. For cylindrical gears, the development of tooth line has experienced several tooth line forms such as spur tooth line, helical tooth line, involute helix, herringbone gear, etc., but these types of tooth line transmission have certain shortcomings. In order to overcome the shortcomings of the above-mentioned tooth-line gear transmissions, people have proposed a spiral tooth-line cylindrical gear. Its main features are: its tooth profile is a standard involute gear, and along the tooth length direction is a curved arc . However, due to its late proposal and less practical application, the spiral tooth line cylindrical gear lacks systematic research on the meshing method of the spiral tooth l...

AI Technical Summary

Problems solved by technology

However, due to its late proposal and few practical applications, the arc-toothed cylindrical gear lacks systematic research on the meshing mode of the arc-toothed cylindrical gear. This application aims at the defects of the prior art and provides a curved-toothed point-to-line meshing gear. The two meshing gears adopt arc-toothed cylindrical gears, and the meshing method of the two gears adopts point-line meshing gear transmission

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