Topic
Pressure angle
About: Pressure angle is a research topic. Over the lifetime, 1373 publications have been published within this topic receiving 10245 citations. The topic is also known as: angle of obliquity.
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TL;DR: In this article, the analysis of a straight bevel gear tooth is carried out to evaluate the bending stresses, and the authors used an isoparametric brick element for finite element analysis.
15 citations
Patent•
03 Aug 2010TL;DR: In this paper, a cutting disk has cutting blades oriented on its circumference with the cutting edges of the blades oriented perpendicular to the axis of rotation of the cutter disk thereby representing a plane which can be oriented to a work piece (e.g. face gear) under an angle equal to the pressure angle of the mating face gear set's pinion.
Abstract: A cutter disk having cutting blades oriented on its circumference with the cutting edges of the blades oriented perpendicular to the axis of rotation of the cutter disk thereby representing a plane which can be oriented to a work piece (e.g. face gear) under an angle equal to the pressure angle of the mating face gear set's pinion, and, which can be rotated around a virtual pinion axis to generate a tooth flank on the work piece.
15 citations
TL;DR: In this article, the authors proposed a mathematical model to correct the Isoform® lengthwise-reciprocating grinding process and validated the model numerically using the tooth profile of a cutter enveloping gear.
15 citations
01 Jan 2014
TL;DR: In this article, a parametric investigation of the combined effect of the cutter radius and the dedendum on the clearance and the resulting tooth bending strength using analytical calculations, computerised generation and finite element simulations to determine the exact tooth geometry in search of stronger tooth forms.
Abstract: Standard 20 ◦ spur gears are typically generated with a whole depth of 2.2-2.25 times the module. At the nominal centre distance, this leaves a radial clearance, which is in itself redundant from a functional point of view. However, the intrinsic geometry of the cutting process always results in a non-involute root profile (the trochoid), which is even more pronounced in the case of using a rounded cutter tip in order to increase the strength of the cutting edge. Larger tip radii produce stronger tooth fillets, potentially increasing the bending strength, but reducing the involute part of the tooth. Thereby, they increase the risk of interference with mating gears. This paper performs a parametric investigation of the combined effect of the cutter radius and the dedendum on the clearance and the resulting tooth bending strength using analytical calculations, computerised generation and finite element simulations to determine the exact tooth geometry in search of stronger tooth forms. Non-dimensional modelling is used to obtain results applicable to entire gear families. List of symbols αo Pressure angle
15 citations
TL;DR: In this article, a method of minimizing the working pressure angle while achieving interference-free gears for cases where the tooth differences may be as small as unity is described, where the differences in tooth numbers between the annulus and planet gears are small and problems of interference become critical.
Abstract: This paper deals with the design of KHV planetary gears, looking particularly at applications which give high reduction ratios. Under these conditions the differences in tooth numbers between the annulus and planet gears are small and problems of interference become critical. In addition, the working pressure angle can be as much as three times the generated pressure angle, resulting in large bearing forces and low transmission efficiencies. A method of minimizing the working pressure angle while achieving interference-free gears for cases where the tooth differences may be as small as unity is described.
15 citations