Damping device for percussion device, percussion device, rock drilling machine and method of damping in a rock drilling machine

Damping device for percussion device, percussion device, rock drilling machine and method of damping in a rock drilling machine

Damping device for a percussion device of a rock drilling machine (1) having a striking direction (R), including a damping piston (8) for action in an axial direction against a tool to be driven by the percussion device, wherein the damping piston (8) exhibits a piston portion (6), which is received...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ALDEN ERIK, HENRYSSON JONAS, SINNERSTAD JONAS, FALK BENGT
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
HAND TOOLS
MANIPULATORS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PERCUSSIVE TOOLS
PERFORMING OPERATIONS
PORTABLE POWER-DRIVEN TOOLS
TRANSPORTING
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Beschreibung
Zusammenfassung:Damping device for a percussion device of a rock drilling machine (1) having a striking direction (R), including a damping piston (8) for action in an axial direction against a tool to be driven by the percussion device, wherein the damping piston (8) exhibits a piston portion (6), which is received in a damping chamber (7) whereto is connected a damping flow circuit including a supply conduit (14), and wherein an outlet conduit (15) is connected to the damping chamber. A damping flow regulator (10) being controllable in respect of damping flow in the damping flow circuit is arranged in said supply conduit (14), and a control means (11) is arranged to emit control signals to the damping flow regulator (10) for regulating said damping flow. The invention also concerns a percussion device, a rock drilling machine and a method.