| 摘要 |
A robot arm assembly includes a first output shaft, a first driving mechanism, a second output shaft and a second driving mechanism. The first driving mechanism includes a first driving motor for driving the first output shaft to rotate, a first driving belt pulley non-rotatably connected to the first output shaft, and a first belt winding on the first driving motor and the first driving belt pulley. The second output shaft is rotatably sleeved in the first output shaft. The second driving mechanism includes a second driving motor for driving the second output shaft to rotate, a second driving belt pulley non-rotatably connected to the second output shaft, and a second belt winding on the second driving motor and the second driving belt pulley.
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