Downhole instrument damping device

The utility model relates to a downhole instrument damping device, which is composed of a joint, a compression spring, a central axle, a spherical elastomer, an outer tube and a guide cone, wherein the joint is in the cylindrical shape, the upper part of the joint is provided with an external thread...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHI GAIFANG, CHEN MEISUI, LI JUBING, NIE SHENJIAN, CUI FENGXIA, CAO HAIXIA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model relates to a downhole instrument damping device, which is composed of a joint, a compression spring, a central axle, a spherical elastomer, an outer tube and a guide cone, wherein the joint is in the cylindrical shape, the upper part of the joint is provided with an external thread and connected with a downhole instrument, the lower part of the joint is provided with an internal thread and connected with the external thread on the upper end of the center axle; the center axle is in the cylindrical shape, the lower part of the center axle is provided with a boss; the outer tube is a cylindrical tube body, the upper part of the outer tube is provided with an internal shoulder, the center axle is hung on the internal shoulder on the upper part of the outer tube, a spring is mounted in the outer tube, an internal thread is arranged on the lower part of the outer tube and connected with the external thread of the guide cone; the spherical elastomer is formed by combining upper, lower parallel sup