Hydraulic sleeve shaper

A hydraulic sleeve shaper comprises an upper connector, an outer cylinder, a cone guide plug, a spring, an expansion shaft, an expansion body and a plugging steel ball, the upper end of the upper connector is provided with a connecting structure, the lower end of the upper connector is provided with...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WANG LEI, ZHANG LIJIE, JI BINGRUI, ZHOU HENGCANG, ZHANG TIANTONG, LI XIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	A hydraulic sleeve shaper comprises an upper connector, an outer cylinder, a cone guide plug, a spring, an expansion shaft, an expansion body and a plugging steel ball, the upper end of the upper connector is provided with a connecting structure, the lower end of the upper connector is provided with external threads, the upper end of the cone guide plug is provided with external threads, the lower end of the cone guide plug is provided with a conical guide face, and the upper end and the lower end of the outer cylinder are in threaded connection with the upper connector and the cone guide plug respectively. An expansion window with a limiting supporting lug arranged on the outer side edge is formed in the side wall, an expansion shaft is embedded in an inner cavity of the outer barrel, the upper end of the expansion shaft is limited by an upper connector, the lower end of the expansion shaft is supported by a spring, and a shaft hole in the upper end of the expansion shaft is provided with a conical sealing f