Clamping lifter, particularly stone gripper for lifting heavy loads, such as large stone blocks in stone quarry, comprises fastening unit for clamping jaw, which is mounted on nut element, and rotary drive unit that is arranged on shaft

摘要

The clamping lifter (1) comprises a shaft (11), which has a portion (21) with an external thread and a nut element (31) with a corresponding internal thread, and has another portion (22) with another external thread directed in opposite direction to the external thread of the former portion and another nut element (32) with the corresponding internal thread. A fastening unit for a clamping jaw (41) is provided, which is mounted on the former nut element. The clamping jaw is protruded from the shaft axis. A rotary drive unit (51) is arranged on the shaft.