Back to results
US 2025/0129840 A1Published application
Helical gear and machining method thereof
AssigneeVolvo Car Corporation
InventorsYunlei Li, Shuai Xu, Chengmin Yang, Weizhong Shao
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeVolvo Car Corporation
InventorsYunlei Li, Shuai Xu, Chengmin Yang, Weizhong Shao
Estimating the term…
A helical gear and a machining method thereof. Each tooth of the helical gear includes a tooth surface profile, the tooth surface profile includes a series of peaks and a series of valleys, the series of peaks or the series of valleys form a ripple direction, and the helical gear forms a meshing line during meshing, and the helical gear includes a predetermined noise sound pressure level threshold, which is characterized in that an angle between the ripple direction and the meshing line is selected so that an actual noise sound pressure level of the helical gear is less than the predetermined noise sound pressure level threshold, and a difference between the actual noise sound pressure level and the predetermined noise sound pressure level threshold increases with an increase of the angle.
A helical gear, wherein each tooth of the helical gear comprises a tooth surface profile, the tooth surface profile comprises a series of peaks and a series of valleys, the series of peaks or the series of valleys form a ripple direction, and the helical gear forms a meshing line during meshing, and the helical gear comprises a predetermined noise sound pressure level threshold, which is characterized in that an angle between the ripple direction and the meshing line is selected so that an actual noise sound pressure level of the helical gear is less than the predetermined noise sound pressure level threshold.
A machining method of a helical gear, comprising:
Dependencies are inferred from the claim text.