Patent ID: 8511198
Filing Date: 2013-08-20
Classification: B25J,Y10T

Abstract:
1. A robot arm system, comprising: a support base; a first robot arm rotatably connected to the support base; a first drive mechanism driving the first robot arm to rotate around a first rotation axis relative to the support base; a second robot arm rotatably connected to the first robot arm; a second drive mechanism driving the second robot arm to rotate around a second rotation axis relative to the first robot arm; a wrist assembly connected to the second robot arm; a first wheel positioned on the support base; a second wheel positioned on the second robot arm; a third wheel positioned on the wrist assembly and rotatably connected to the second robot arm; a first flexible belt connecting the first wheel with the second wheel; and a second flexible belt connecting the third wheel with the second wheel, wherein the first wheel, the second wheel, and the third wheel have a substantially same radius, the first wheel is driven by the first drive mechanism to rotate, an attitude of the second robot arm remains unchanged when the first robot arm rotates relative to the first rotation axis.