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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Journal Article•
2 citations
Patent•
23 Apr 1981
TL;DR: In this paper, a cycloid tooth shape is defined by the convex 6 of a male rotor at one point on its top and secondary portions 10-11 and 13-14 adjacent to the forward flank surface 7 and a backward flank surface 8 are formed in a circular tooth shape with the central point 21 of their circular arcs positioning inside the pitch circle 16 of the female rotor.
Abstract: PURPOSE:To provide forward and backward flank surface of a female rotor at its concave with pressure angles and the convex of a male rotor with a pressure angle by forming it in a tooth shape determined by the concave of the female rotor, in order to make their hobbing easy. CONSTITUTION:A primary portion 9-10 of a forward flank surface 7 is formed in a cycloid tooth shape defined by the convex 6 of a male rotor 2 at one point on its top and secondary portions 10-11 and 13-14 adjacent to the forward flank surface 7 and a backward flank surface 8 are formed in a circular tooth shape with the central point 21 of their circular arcs positioning inside the pitch circle 16 of the female rotor 1. The radius of this circular arc is made larger than an addendum outside the pitch circle 16 of the female rotor 1. Pressure angles thus provided to the forward and backward flank surfaces 7 and 8 and the convex 6 of the male rotor 2 make hobbing by both rotors 1 and 2 easy.
2 citations
Patent•
06 Apr 2017
TL;DR: In this article, an involute tooth form is set as a tooth form of a rigid inner gear and a correction pressure angle is acquired with a circle pitch as p, and an elongation amount of the circle pitch Δp so that a normal pitch pcosα' before torque-loading based on a reference pressure angle α' becomes equal to a normalized pitch (p+Δp)cosα'' at torqueloading, and the reference pressure angles α' is corrected to the correction pressure angles ε.
Abstract: PROBLEM TO BE SOLVED: To provide a gear manufacturing method which can suppress the generation of a tooth contact failure.SOLUTION: An involute tooth form is set as a tooth form of a rigid inner gear. Next, an involute tooth form which is approximate to a theoretical tooth form for performing theoretically-correct engagement to the involute tooth form of the rigid inner gear is acquired as a tooth form of a plastic outer gear 3. Then, a correction pressure angle α'' is acquired with a circle pitch as p, and an elongation amount of the circle pitch as Δp so that a normal pitch pcosα' before torque-loading based on a reference pressure angle α' becomes equal to a normal pitch (p+Δp)cosα'' at torque-loading based on the correction pressure angle α'', and the reference pressure angle α' is corrected to the correction pressure angle α''. The rigid inner gear and the plastic outer gear 3 are manufactured by following these procedures.SELECTED DRAWING: Figure 13
2 citations
Patent•
12 Nov 1958
TL;DR: In order to obtain an equal distribution of the load between the planet gears of an epicyclic train, the two inputs are combined in the driven carrier 13 coupled to shaft 17 by a double-toothed rim as discussed by the authors, where a train 10-13 of this type is shown, Fig 3, in an integrating gear in which a shaft 9 to which the sun gear 11 is secured is driven at constant speed whilst a shaft 8 geared to the annulus 10 is driven by a regulatable motor or by an infinitely variable gear from a separate motor or from the shaft
Abstract: 804,182 Toothed gearing; variable-speed gearing EISENWERKE MULHEIM/MEIDERICH AG Nov 14, 1956, No 34822/56 Classes 80 (1) and 80 (2) In order to obtain an equal destribution of the load between the planet gears of an epicyclic train, the carrier d, Fig 1, of the planets c 1 , c 2 is movable freely in a radial direction and the tooth pressure angle av 2 between the planets and the annulus a is different, as a result of profile displacement, from the pressure angle αv 1 between the planets and the sun gear b A train 10-13 of this type is shown, Fig 3, in an integrating gear in which a shaft 9 to which the sun gear 11 is secured is driven at constant speed whilst a shaft 8 geared to the annulus 10 is driven by a regulatable motor or by an infinitely-variable gear from a separate motor or from the shaft 9 The two inputs are combined in the driven carrier 13 coupled to shaft 17 by a double-toothed rim 15
2 citations