Steel wire rope twisting preventing device for bailing pumping unit

Abstract

The invention relates to a steel wire rope twisting preventing device for a bailing pumping unit. The steel wire rope twisting preventing device is characterized by comprising a lower joint, a connecting block and a rope sleeve, all of which are orderly and detachably connected together, wherein an annular hole is formed in the top of the rope sleeve; the upper end of the connecting block is in threaded connection with the lower end of the rope sleeve; the steel wire rope goes through the annular hole and then is fixed by use of a fastener; the lower end of the lower joint is in threaded connection with the upper part of the pumping unit, while a vertical hole is formed downwards in the top of the lower joint, the bottom of the vertical hole is connected with a spherical cavity, and the connection part of the spherical cavity and the vertical hole is an annular stepped surface; a bulb arranged on the lower end of the connecting block, the spherical cavity and the annular stepped surface form a fastening structure, and the bulb can be put into the spherical cavity and fastened with the annular stepped surface. The steel wire rope twisting preventing device for the bailing pumping unit is capable of effectively preventing a steel wire rope from twisting and knotting by use of the untwisting measure, and therefore, the service life of the steel wire rope can be prolonged.

Description

technical field [0001] The invention relates to an oil production equipment used in the petroleum industry, in particular to an anti-twisting device for a wire rope of a lifting pumping unit. Background technique [0002] In oil extraction equipment, the lifting machine is a commonly used inclined well oil production equipment. Its principle is to use the drum to wind the steel wire rope to drive the oil well pump located in the downhole oil pipe to move up and down to lift and suck crude oil. The length of the wire rope of the hoist matches the depth of the oil well, at least 500-600 meters long, and even up to 2000 meters. The wire rope is installed on the drum in a multi-layer winding manner. Because the length of the wire rope is too long, the oil pump drives the wire rope to reciprocate during the production of the lifting pumping unit, which will cause the twisting and knotting of the wire rope, resulting in abnormal damage to the wire rope and affecting normal oil pro...

AI Technical Summary

Problems solved by technology

Due to the length of the wire rope is too long, the oil pump drives the wire rope to reciprocate during the production of the lifting pumping unit, which will cause the wire rope to twist and knot, resulting in abnormal damage to the wire rope and affecting normal oil production.

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