Helically-toothed-belt transmission device

Details Helically-toothed-belt transmission device Helically-toothed-belt transmission device

2011-02-15

2011-02-15

Siconolfi, Robert A (Department: 3657)

Endless belt power transmission systems or components

Positive drive belt

Drive surfaces on belt formed in or interconnected by...

C474S153000, C474S204000, C474S237000, C474S261000, C156S138000, C156S140000, C156S174000

Reexamination Certificate

active

07887446

ABSTRACT:
Noise and vibration of a helically-toothed-belt transmission device driven under heavy load or at a high-speed rotation, are reduced. A backlash “D” is selectively enlarged in a helically-toothed-belt transmission device that transmits drive force by meshing between a helically toothed belt and a helically toothed pulley. That is, a tooth helix angle “θ” is set in a range of −0.2≦1−W·θ/Pt≦0.75, with “Pt” being a tooth pitch, “θ” a tooth helix angle, and W the width of the belt. The backlash “D” between the helically toothed belt and the helically toothed pulley is set to be 1.6%-3% of the tooth pitch “Pt”.

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patent: 11013840 (1999-01-01), None
patent: 2000-320626 (2000-11-01), None
patent: 2000320626 (2000-11-01), None
“Noise and Life of Helical Belt Drive”. Ueda et al. Transaction of the ASME. vol. 121. Jun. 1999.

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