TRYCKFLUIDUMDRIVEN VERKTYGSMASKIN

摘要

A pressure fluid powered machine tool comprising a rotary motor unit displaceably guided in a cylinder bore of a housing to accomplish a combined rotary and linear movement of a working tool such as a drilling or tapping tool. The motor unit is provided with an external pressure fluid supply tube which is rigidly connected to the motor unit in a parallel offset position and which cooperates with a pressure chamber in the housing to establish a controlled fluid communication between the housing and the motor unit. The feed tube also serves as a torque reaction support bar by means of which the torque reaction arising in the motor unit is transferred to the housing.