Planetary gear for with automotive electro-mechanical brake actuator has a sun pinion drive input wheel, a hollow drive output wheel, a fixed wheel and a planetary wheel

摘要

A two-stage stepless planetary Wolfrom' gear has a sun pinion drive input wheel (4), a hollow drive output wheel (10), a fixed wheel (8) and a planetary wheel (6). The planetary wheel (6) is a graduated planetary (6a,6b) wheel. The planetary stage (6b) linked with the drive output wheel (10) is supported by a positioning wheel (12). The positioning wheel (12) takes up no torque, and has an axle in line with the drive in/out axle (2/14).