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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
Tel:
86-571-87041360,87239525
Fax:
86-571-87239571
Add:
No.9 Gaoguannong,Daxue Road,Hangzhou,China
P.C:
310009
E-mail:
meem_contribute@163.com
Abstract: The existence of the installation error of the planetary gear would lead to the uneven load problem of the planetary gear train, which would affect the transmission performance and life of the reducer. Previous studies have not clearly defined the impact of installation errors on the systems load sharing performance at different angles, and there have been few studies on the impact of multiple planetary gear pairs on system load sharing (under different installation errors and input powers). Therefore, the influence of installation errors of planetary gear systems on the system's load sharing performance in practical applications was studied. Firstly, taking the heavy-duty four-planetary gear train as the research object, the comprehensive error expression of the radial and tangential installation errors of the planetary gear was established. Then, the influence of different installation error angles and values for the single planetary gear on the load sharing system was analyzed based on the transmission model of the gear train. Finally, the influence of multi-planetary gear on the load sharing system under different working conditions and error configurations was analyzed based on the single planetary gear. The results show that the tangential installation error of the planetary gear has the greatest influence on the load sharing of the system, and the radial installation error has the least influence on the load sharing of the system. When the installation error of the single planetary gear is 60 μm and the installation error angle θ is close from the radial direction to the tangential direction, the load sharing coefficient of the planetary system is increased by 9.6%. The greater the absolute value of the error, the greater the load sharing coefficient. When the installation error of the single planetary gear is from -30 μm to -60 μm, the load sharing coefficient of the system is increased by 4.6%. The influence of tangential installation error of multi-planetary gear on system load sharing can be measured by effective error. In the load range of the gear, with the increase of the input power, the influence of the installation error on the load sharing of the system will be decreased gradually.
Key words: mechanical drive; planetary transmission; reducer; transmission; load distribution; installation error of planetary gear; load sharing characteristics
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