Air-spring percussive tool

An air-spring percussive tool comprises a casing (1) in which are accommodated a drive (2), a working tool (3), a cylinder (4) having air replenishing ports (11, 12, 13, 14). The cylinder (4) accommodates a piston (5) connected to the drive (2) and a hammer piston (6). The air-spring percussive tool...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JURY NIKITOVICH KOLGAN, IVAN ANDREEVICH PROKHOROV, JURY PETROVICH GANENKO, VLADIMIR PORFIRIEVICH BALANDIN
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HAND TOOLS MANIPULATORS MINING MINING OR QUARRYING 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:	An air-spring percussive tool comprises a casing (1) in which are accommodated a drive (2), a working tool (3), a cylinder (4) having air replenishing ports (11, 12, 13, 14). The cylinder (4) accommodates a piston (5) connected to the drive (2) and a hammer piston (6). The air-spring percussive tool also has a sleeve (17) surrounding the cylinder (4) and having an element for selectively uncovering the air replenishing ports (11, 12, 14) of the cylinder (4) when the sleeve (17) is displaced. The replenishing air ports (11, 12, 14) are disposed in one and the same plane drawn at right angles to the axis of the cylinder (4).