Concentric shaft for tool positioning

The utility model discloses a concentric shaft for tool positioning. The concentric shaft comprises a positioning shaft, non-positioning shafts and bosses, wherein the positioning shaft is of 3 sections; each non-positioning shaft is arranged between each two positioning shafts; the bosses are forme...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JI JIANYI, SUN KUILIN, CHE FAQING, XIANG PENGTAO
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a concentric shaft for tool positioning. The concentric shaft comprises a positioning shaft, non-positioning shafts and bosses, wherein the positioning shaft is of 3 sections; each non-positioning shaft is arranged between each two positioning shafts; the bosses are formed in both ends of the concentric shaft. The concentric shaft is simple in structure and convenient to use, the friction resistance can be effectively reduced when the shaft is inserted in or drew out; by virtue of the design of boss, direct stress deformation is avoided when the concentric shaft is inserted in or drew out, and therefore the service life of the concentric shaft is prolonged.