Multi-mode switching hammer drill tool

A multi-mode switching hammer drill tool includes a casing, a drilling component and a hammering component matched with the casing, a shifting component, and a driving motor. The drilling component and the hammering component are cooperated with a driving motor for transmission through a transmissio...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WU SHIQING, ZHANG PIQUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR HAND TOOLS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TRANSPORTING WORKING CEMENT, CLAY, OR STONE WORKING STONE OR STONE-LIKE MATERIALS
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Beschreibung
Zusammenfassung:	A multi-mode switching hammer drill tool includes a casing, a drilling component and a hammering component matched with the casing, a shifting component, and a driving motor. The drilling component and the hammering component are cooperated with a driving motor for transmission through a transmission mechanism. The transmission mechanism includes a transmission member, a nested gear set, a drilling driven gear and a hammering driven gear. The lower bottom face of the hammering driven gear is higher than the upper top face of the drilling driven gear, the distance between the lower bottom faceof the hammering driven gear and the upper top face of the drilling driven gear is smaller than the tooth width of an outer covering gear, and the distance between the hammering driven gear and the drilling driven gear is smaller than the addendum circle diameter of the outer covering gear. The shifting assembly is controlled to drive the transmission part to shift the outer covering gear to slideup and down on a transmis