Pinion drive apparatus for linear actuator, has clamping elements that are moved forwardly by drive movement of drive piston such that clamping elements are inwardly pressed against outer periphery of driven rod and detachedly clamped

摘要

The coupling elements (33a,33b) has clamping elements (34) that are arranged around driven rod (3) extended from drive piston (16). The clamping elements are moved forwardly by drive movement of drive piston such that clamping elements are inwardly pressed against outer periphery of driven rod and detachedly clamped. The support assembly (38) has support struts which are radially arranged between clamping element and support ring (42). The support ring is supported by spring (47) in opposite direction with respect to drive movement such that drive movement of driven rod is enabled.