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Algin Vladimir B., Dr. Techn. Sc., Professor Deputy Director in Science,  This email address is being protected from spambots. You need JavaScript enabled to view it.

Bokovets Elena N. Chief of the Department of Protection of Intellectual Property, This email address is being protected from spambots. You need JavaScript enabled to view it., Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus

Kuznetsov Evgeni V., Master Techn. Sc. Design Engineer, This email address is being protected from spambots. You need JavaScript enabled to view it., Minsk Wheel Tractor Plant, Minsk, Republic of Belarus

Year 2015 Issue 3 Pages 22-35
Type of article RAR Index UDK 629.114-585.2 Index BBK  

This article is a continuation of the first part of work, published in a previous edition, containing methods of patent information and computational studies of high-power transmissions. In this part planetary gearboxes with three degrees of freedom of leading manufacturers and patentees (Allison, Caterpillar, Komatsu, General Motors and others) are observed. Directions of development of gearboxes are illustrated with the use of typical solutions. Parameters of gear sets, necessary for calculations, are estimated with the use of patent data. Speed and power calculations of gearboxes are made. For evaluation of compactness and loading new quantitative indicators are entered. Proposed comprehensive indicator of loading is based on the integral accounting major data about loading, obtained by computational analysis. Relation between compactness and loading is presented. Results of investigation of gearboxes with four and more degrees of freedom and general conclusions are planned to provide in the next part of work.


hydromechanical transmission, gearbox with three degrees of freedom, parameter estimation, speed and power calculation, loading, compactness, comprehensive evaluation of transmission

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