Rotary hammer friction coupling

A rotary hammer comprising a casing (1) accommodating a rotary drive (2) having a protective clutch in which one of the clutch members (5) has a non-round hole (6) and mounts an adjusting nut (8) and a bushing (13) with a non-round hole (14), the hammer drill also comprising a removable key (21) for...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	IVAN ANDREEVICH PROKHOROV, SERGEI ANATOLIEVICH SAPOZHNIKOV, JURY NIKTOVICH KOLGAN, VLADIMIR PORFIRIEVICH BALANDIN
Format:	Patent
Sprache:	eng
Schlagworte:	BORING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HAND TOOLS MACHINE TOOLS MANIPULATORS METAL-WORKING NOT OTHERWISE PROVIDED FOR MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERCUSSIVE TOOLS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TRANSPORTING TURNING
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Beschreibung
Zusammenfassung:	A rotary hammer comprising a casing (1) accommodating a rotary drive (2) having a protective clutch in which one of the clutch members (5) has a non-round hole (6) and mounts an adjusting nut (8) and a bushing (13) with a non-round hole (14), the hammer drill also comprising a removable key (21) for adjusting the torque of the protective clutch, the key having a shaft (22) having a non-round portion (24) at the end thereof and corresponding to the non-round hole (6) and a sleeve (25) surrounding the shaft (22) which also has a non-round portion (26) corresponding to the non-round hole (14) of the bushing (13).