Rotary ball centralizer

The utility model discloses a rotary ball centralizer, which relates to the technical field of sucker rod centralizing devices and comprises a centralizer body, a limit component and a rotary cylinder, the rotary cylinder is sleeved on the centralizer body, the outer diameter of the rotary cylinder...

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Hauptverfasser:	SHEN XIAOSONG, LYU JUNFENG, MIAO JINYING, FENG TINGDE, ZHANG YIMIN, LIM JI-WON, LIU YUANBING, AN GUOFENG
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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creator	SHEN XIAOSONG LYU JUNFENG MIAO JINYING FENG TINGDE ZHANG YIMIN LIM JI-WON LIU YUANBING AN GUOFENG
description	The utility model discloses a rotary ball centralizer, which relates to the technical field of sucker rod centralizing devices and comprises a centralizer body, a limit component and a rotary cylinder, the rotary cylinder is sleeved on the centralizer body, the outer diameter of the rotary cylinder is larger than that of a sucker rod, and a plurality of support balls are arranged in a first annular gap between the rotary cylinder and the centralizer body. The parts, at the two ends of the rotating cylinder, of the centralizer body are each provided with a limiting assembly, the two limiting assemblies are clamped to the centralizer body, and the two limiting assemblies limit the two ends of the rotating cylinder to prevent the rotating cylinder from axially moving; the limiting assembly comprises limiting rings and limiting balls, the two limiting rings are arranged on the centralizer body at the two ends of the rotating cylinder in a sleeving mode and abut against the two ends of the rotating cylinder respec
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language	chi ; eng
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subjects	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
title	Rotary ball centralizer
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