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Scheme and Structure Design of Binary Double Internal Meshing Planetary Gear Transmission
Technical Paper
2020-01-5227
ISSN: 0148-7191, e-ISSN: 2688-3627
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Automotive Technical Papers
Language:
English
Abstract
Aiming at the low transmission efficiency and power density of the hydraulic automatic transmission (AT), and the increasingly complex structure of its planetary gear with the increase of transmission gears, this paper proposes a new type of binary logic transmission (BLT), which adopts the double internal meshing planetary row (DIMPR), based on a heavy-duty commercial vehicle. By introducing the concept of BLT and analyzing the transmission performance of the DIMPR, the process of scheme design of binary double internal meshing planetary gear transmission (BDIMPGT) is established. According to the structural characteristics of the DIMPG, the support structure of the planetary gear is designed based on CAD and CATIA. In the structural design of binary clutches, V-groove clutch parts are coupled to the transmission case, planetary carrier, and sun shaft, respectively, in each DIMPG. Through the joint action of the clutch actuator and the disk spring, the binary control function is realized so that the gears of the transmission increase exponentially with the number of planetary rows to meet the multi-gear requirement of heavy commercial vehicles.
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Citation
Li, S., Duan, C., Weizhi, L., Xiaohua, Z. et al., "Scheme and Structure Design of Binary Double Internal Meshing Planetary Gear Transmission," SAE Technical Paper 2020-01-5227, 2021, https://doi.org/10.4271/2020-01-5227.Data Sets - Support Documents
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