A Unified Approach to the Assembly Condition of Epicyclic Gears-Reference-Cited by-同舟云学术

A Unified Approach to the Assembly Condition of Epicyclic Gears

Published:1998-09-01 Issue:3 Volume:120 Page:448-452
ISSN:1050-0472
Container-title:Journal of Mechanical Design
language:en
Short-container-title:

Author:

Simionescu P. A.¹

Affiliation:

1. Politehnica University of Bucharest, Dept. of Mechanism and Robot Theory, Spl. Independentei 313, Bucharest 77206, Romania

Abstract

The paper gives a general method for determining the assembly condition of epicyclic gears, irrespective of the structure or gear type. According to the method, an associated mechanism is considered, having a single arm carrier and a split planet. The assembly condition of the gear train is satisfied when obtaining identical superposition of the teeth of the two half-planets after rotating the arm to the next position. By writing simple kinematic relations between some partial transmitting ratios, general formulae are obtained which can be applied to specific epicyclic gear sets as functions of teeth numbers. The same approach allows the determination of the necessary angles between the arms of the carrier, or the offset angles between the wheels of the compound planets, as alternative solutions for the case in which equidistant assembly of identical planets is not possible.

Publisher

ASME International

Subject

Computer Graphics and Computer-Aided Design,Computer Science Applications,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/mechanicaldesign/article-pdf/120/3/448/5920872/448_1.pdf

Reference5 articles.

1. Alexandru, P., Visa, I., and Bobancu, S., 1984, Mechanism Synthesis, Brasov University Press (in Romanian).

2. Gradu, M., Langenbeck, K., 1995, “Planetary Gears with Unequal Pinion Spacing,” Proceedings of the Ninth Congress on the Theory of Machines and Mechanisms, Vol. 1, pp. 392–396.

3. Kojevnikov, S. N., 1954, “Theory of Mechanisms and Machines,” Masgiz, Kiev, pp. 338–341 (in Russian).

4. Levai Z. , 1968, “Structure and Analysis of Epicyclic Gear Trains,” Journal of Mechanisms, Vol. 3, pp. 131–148.

5. Love P. P. , 1936, “Epicyclic Gearing,” Proceedings of the Institution of Mechanical Engineers, Vol. 134, pp. 547–568.

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