Model: NCKU-F06 Hyperboloid Gear Mechanism

Taxonomy
NCKU Collection
full image
Group
Gear Mechanisms
ID
F06
Title
Hyperboloid gear Mechanism
Creator
Vintage
c.1913-1929
Manufacturer
Shimadzu Seisakusho Ltd
Size
Base: Width x Depth [316,316]mm;
Overall: W x D x Height [316,316,351]mm
Medium
Cast iron and brass on wood pedestal
Rights
All rights reserved by the National Cheng Kung University
Audience
General Public
Keyword
Description
This mechanism demonstrates the transmission of a hyperboloid gear pair. A hyperboloid of revolution is the surface developed by a straight-line generatrix, tangent to a base cylinder and at an angle to the axis of the base cylinder, as it is revolved about the axis of the base cylinder. The hyperboloid gear is generated based on formulating the straight-line, which is used to generate a hyperboloid of revolution, as its tooth profile. The hyperboloid gear pair is equivalent to a rolling and sliding contact between two hyperboloids. It can transmit the motion between two crossed axes. However, since the contact of two meshing hyperboloid gears is a line contact, there will be a slipping motion along the tooth profile of the hyperboloid gears when transmission. Thus the transmission of hyperboloid gears has the problem of greater frictions.
Descr Author Hong-Sen Yan
Descr Date
2006-05-01
References
[1] IFToMM Standardization of Terminology, 2003, Mechanism and Machine Theory, Vol. 38, No. 7-10, Chapters 2.3.11, 12.100, and 12.148, pp. 783, 887, and 891.
Resources Movie
Simulation
Model: NTU-F06 Hyperboloid Gear Pair
Model: NTUT-F02 Hyperboloid Gear Pair