Fluid-powered rotary actuator

摘要

The fluid operated drive comprises a helical groove (28) with thread-head styled drive section (27), of a driven shaft (23), built on it. The length of the shaft narrows at the point of the housing chamber (6), where a shaft section (32) of the driven shaft is fastened, axially, on both sides. The drive section is in a piston chamber (34) held on the inside of the pistons (13). The axial length of the chamber is longer than that of the drive section. Both axial sides of the piston chamber are slidable on the fastened end piston-side walls of the shaft section of the driven shaft. The pistons may have an un-cross-like contour to its complimentary housing chamber.