Method and the rotary rock machine which achieve the round trip operation of the shock device and the shock piston for the rotary rock machine

摘要

It has the round trip operational shock piston (3) the shock device which (1) has, it advances to drive the shock piston the first chamber which can be pressurized in order (3) (5) and it backs up to drive the shock piston the second chamber which can be pressurized in order (3) periodically (8) with. The shock device it backs up to drive the shock piston in order (3) one drive piston (7) has at least. The aforementioned drive piston (7) part is formed, in order the second chamber (8) to go in, operates pressure retreat driving direction, on the driving edge of the drive piston with the pressure medium which is inside this second chamber. The aforementioned drive piston (7), the shock piston (3) cooperating, it possesses the expedient in order it backs up to drive. The aforementioned drive piston (7), in opposite direction to retreat driving direction, in axial direction it is made free vis-a-vis the shock piston (3). This invention regards also method and the rotary rock machine. Selective figure Figure 1