Research of Load Distribution on Rollers of the K-H-V Planetary Gear

Pushkarev I.A., Ovsyannikov A.V.


The results of an experimental research of the load distribution on rollers are given, taking into account the manufacturing error of the K-H-V planetary gear.

According to the classification by V.N. Kudryavtsev, K-H-V planetary gears have many advantages over their analogues, but their use is reduced due to the presence of a torque transmission mechanism. The design of a planetary gear set with a roller mechanism for transmission of torque is simpler than with a link mechanism and has a higher efficiency. However, despite all the advantages of planetary roller gear, it is not well represented in published studies.

One should take into account that during the operation of the K-H-V planetary gear with a roller mechanism for transferring torque, only half of the rollers take the load, the other half is idling. At the same time, with an increase in the number of rollers, the maximum load on the transmission mechanism can be reduced. Also, with a certain number of rollers, the coefficient of uneven distribution of the load in the gear meshing is reduced.

Errors in the manufacture and assembly of the gear can lead to a change in the ratio between the forces that affect the rollers and the elements of the mechanism mating with them. Therefore, the analytical dependences took into account the most unfavorable cases in relation to the distribution of loads.

A description of the experimental setup connected with a personal computer is given. The installation provides the ability to change the angular speed of the electric motor shaft, to take and process the readings of the load cells using the appropriate software package.

The influence of the number of rollers on the load at points of mating of the links of the mechanism was investigated and the most optimal conditions were determined from the point of view of the equal strength of individual links and the axial size of the mechanism.

The obtained dependencies make it possible to establish the load acting on the rollers of an effective planetary gear, and calculate its strength with a sufficiently high degree of accuracy.


planetary gear, roller, mechanism, unbalance factor

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References References

Распределение нагрузки в зацеплениях колес рациональных конструкций планетарных передач и его влияние на технико-экономические показатели привода / Ф. И. Плеханов, Е. Ф. Вычужанина, И. А. Пушкарев, А. С. Сунцов // Вестник ИжГТУ имени М. Т. Калашникова. 2017. № 2. С. 29–35.

Plekhanov F.I., Pushkarev I.A., Pushkareva T.A. Dynamics and strength of planetary gear with elements of increased flexibility at transient modes. 2020 IOP Conf. Ser.: Mater. Sci. Eng. 709 044034.

Plekhanov F., Goldfarb V. Rational designs of planetary transmission, geometry of gearing and strength parameters. Mechanisms and Machine Science, 2016, vol. 34, pp. 285-300. doi: 10.1007/978-3-319-19740-1_13

Plekhanov F.I. Influence of gear deformability in a planetary transmission on the load distribution in tooth engagement. Russian engineering research, 2015, vol. 35, no. 7, pp. 485-488. DOI: 10.3103/


Plekhanov F., Pushkarev A., Pushkarev I. Influence of layout features and parameters of planetary gear on its dynamics and strength characteristics. Mechanisms and Machine Science, 2018, vol. 51, pp. 481-494. doi: 10.1007/978-3-319-60399-5

Zhang A., Wei J., Qin D., Qin D. Analytical coupling characterization of multi-stage planetary gear free vibration considering flexible structure. Journal of Vibroengineering, 2017, vol. 19, is. 6. DOI: 10.21595/


Zhou W., Zuo Y., Zheng M. Analysis and Optimization of the Vibration and Noise of a Double Planetary Gear Power Coupling Mechanism. Shock and Vibration, 2018. doi: 10.1155/2018/9048695

Shao Y. The relationship between the engaging force of planetary gear train and the position correlated modal properties. The Journal of Engineering, 2019. doi: 10.1049/joe.2018.8964

Plekhanov F., Suntsov A., Molchanov S. Influence of planetary-gear structure on the load distribution. Russian Engineering Research, 2017, vol. 37, no. 12, pp. 1028-1032. doi: 10.3103/S1068798X17120164

Экспериментальное исследование динамических реакций в планетарных передачах с роликовым механизмом передачи момента / И. А. Пушкарев, Л. П. Перминов, И. В. Кузнецов, А. Э. Пушкарев // Вестник ИжГТУ имени М. Т. Калашникова. 2019. Т. 22, № 3. С. 26–32.

Сасковец К. В., Капитонов А. В., Лебедев М. В. Новые конструкции и методы оценки точности планетарных радиально-плунжерных передач // Вестник Гомельского государственного технического университета им. П. О. Сухого. 2019. № 1 (76). С. 3–9.

Егоров О. В., Блинов Д. С., Носов А. С. Разработка беззазорной планетарной роликовинтовой передачи высокой точности // Известия Тульского государственного университета. Технические науки. 2018. № 5. С. 192–205.

Горгоц К. Г. Экспериментальное исследование распределения нагрузки между сателлитами в планетарных передачах типа 2К-Н с фиксированными центральными зубчатыми колёсами // Научно-технический вестник Поволжья. 2018. № 11. С. 122–125.

Овсянников А. В., Перминов Л. П., Главатских Г. Н. Исследование напряженно-деформированного состояния зубчато-роликовой передачи // Вестник ИжГТУ имени М. Т. Калашникова. 2016. Т. 19, № 3. С. 18–20.

Plekhanov F., Goldfarb V., Vychuzhanina E. Load distribution in meshing of planetary gearwheels and its influence on the technical and economic performance of the mechanism. Mechanisms and Machine Science, 2018, vol. 51, pp. 117-137. doi: 10.1007/978-3-319-60399-5


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