Pumping well anti-eccentric wear device with spherical wearproof body

Abstract

The invention relates to a pumping well anti-eccentric wear device with a spherical wearproof body. In the field use process of a pumping rod anti-eccentric wear device, the anti-eccentric wear effect is not obvious, and a pumping rod and an oil pipe are prone to being damaged and broken off. The device is provided with a center rod, and the center rod is sleeved with the spherical wearproof body; an upper limiting ring and a lower limiting ring which are fixed on the center rod are arranged at the upper side and the lower side of the wearproof body on the center rod respectively, and gaps exist between the upper limiting ring and the wearproof body and between the lower limiting ring and the wearproof body. The pumping well anti-eccentric wear device with the spherical wearproof body is long in wearproof time, and capable of preventing the pumping rod and the oil pipe from directly making contact to generate wear, prolonging the service life of the pumping rod and the oil pipe and maintaining the normal production of a pumping well.

Description

Technical field [0001] Background technique [0002] Invention content [0003] [0004] [0005] [0006] [0007] [0008] [0009] Yield. Attachment description [0010] figure 1 [0011] Detailed ways [0012] [0013] [0014]

AI Technical Summary

Problems solved by technology

Although there are many types of anti-eccentric wear devices for sucker rods, the effect of anti-eccentric wear is not obvious during field use, and there is still a problem of local severe wear, which causes damage and breakage of sucker rods and oil pipes, directly Affect the normal production of the pumping well, resulting in an increase in the maintenance cost of the oil well operation

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