| 摘要 |
<p>A mid-point dwell linkage system has a cycloidal drive which provides mid-stroke slowdown for presses and lifting devices, particularly simpler forms of bottom drive hydraulic presses, knee drives and automation mechanisms. The system comprises a fixed sun gear (16), a crank (18) rockable on the sun gear axis and carrying a planet gear (21) meshing with the sun gear, an eccentric (27) fixed to the planet gear shaft (19) and a lift arm (23) on the eccentric and connectable (at 46) to a member to be driven. <IMAGE></p> |
