Beam pumping unit rope suspension

Abstract

The invention relates to a beam hanger of a beam-pumping unit, and relates to the field of pumping unit accessories. The beam hanger of the beam-pumping unit comprises a mounting base. Two hair braidsare connected into two mounting holes in the two ends of the mounting base. A smooth sucker rod is mounted in a mounting hole in the center of the mounting base, and a disc spring is arranged in themounting base. Adjusting sleeves are arranged on the outer sides of the lower ends of the hair braids, the lower sides of the adjusting sleeves are inserted into the mounting holes in the mounting base, and the outer sides of the adjusting sleeves are connected with adjusting nuts through trapezoidal threads. The adjusting nuts are located on the lower sides of the mounting base, and bar-shaped protrusions are arranged at the tops of the adjusting nuts. Bar-shaped grooves matched with the bar-shaped protrusions are formed in the bottom of the mounting base, and the bar-shaped protrusions are inserted into the bar-shaped grooves to prevent the adjusting nuts from being disengaged. After the adjusting nuts are adjusted in place, the bar-shaped protrusions on the adjusting nuts are matched with the bar-shaped grooves in the mounting base, so that the effect of preventing the adjusting nuts from being disengaged is achieved, the adjusting nuts do not need to be screwed tightly by more force, and therefore the safety hazards caused by laborsome high-altitude operation are avoided.

Description

technical field [0001] The invention belongs to the field of pumping unit accessories, in particular to a beam-type rope suspension device for a pumping unit. Background technique [0002] The pumping unit is the most common oil production equipment in oil field production. The rope hanger is an important part of the pumping unit. Its basic function is to stabilize the braid (wire rope) on the donkey head of the pumping unit and the oil pumping rod. Connection (the braid bears the upward tensile load, and the polished oil rod bears the downward tensile load), meanwhile, the rope hanger usually also has the function of adjusting the length of the braid and the function of shock absorption. In the prior art, the length adjustment process of hair braids is realized through ordinary threaded connectors. In order to prevent the threads from backing off, this structure needs to be tightened during installation, and it is easy to be corroded by rainwater and rusted to death after i...

AI Technical Summary

Problems solved by technology

However, this two-way card structure occupies a large height space, compresses the oil pumping stroke, and reduces the pumping efficiency of the oil well pump

At the same time, there are many parts in the two-way card structure, the production cost is high, and the convenience of installation is also poor.

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