Horse head turning and swinging mechanism for beam-pumping unit

Abstract

The invention relates to a horse head turning and swinging mechanism for a beam-pumping unit. The horse head turning and swinging mechanism comprises a bottom bracket, wherein the bottom bracket and alifting and lowering bracket above the bottom bracket are in sliding connection; the lifting and lowering bracket is connected with a lifting and lowering mechanism; the lifting and lowering mechanism can drive the lifting and lowering bracket to carry out lifting and lowering movement; the lifting and lowering bracket is detachably connected with a first fixing shaft and a second fixing shaft, wherein the first fixing shaft and the second fixing shaft are vertically distributed; a walking beam can pass through a space between the first fixing shaft and the second fixing shaft; the lifting and lowering bracket is connected with the turning and swinging mechanism; the turning and swinging mechanism comprises a turning and swinging bracket in sliding connection with the lifting and loweringbracket, wherein the turning and swinging bracket can move along the axial line direction of the first fixing shaft or the second fixing shaft; the turning and swinging bracket is connected with a positioning element and a turning and swinging driving mechanism; the turning and swinging driving mechanism is connected with a swinging arm; and the swinging arm is connected with a horse head. The turning and swinging mechanism is low in labor intensity and high in working efficiency.

Description

technical field [0001] The invention relates to the technical field of well workover equipment, in particular to a donkey head tilting mechanism for a beam pumping unit. Background technique [0002] At present, the preparation work before the workover of the oil well is basically carried out by manpower. The donkey head overturning is an important part before the workover operation. Generally speaking, it includes the following two parts: (1) Control the lifting and lowering of the beam to assist in the removal of the polished rod and suspension. The rope device ② realizes the swing of the donkey head to allow the workover rig to work at the wellhead. The donkey head is connected to the end of the travel beam through two pins located on both sides of the travel beam. The donkey head swing refers to removing one side pin. , the rotation of the donkey head around the axis of the pin shaft on the other side. Currently, the above two tasks are carried out manually. The inventor...

AI Technical Summary

Problems solved by technology

[0002] At present, the preparation work before the workover of the oil well is basically carried out by manpower. The turning of the donkey head is an important link before the workover operation. The rope device ② realizes the turning of the donkey head so that the workover rig can work at the wellhead. The donkey head is connected to the end of the beam through two pins located on both sides of the beam, and the turning of the donkey head refers to removing the pin shaft on one side , the rotation of the donkey head around the axis of the pin shaft on the other side. At present, the above two tasks are carried out manually. The inventors found that this process usually requires a lot of manpower, which is inefficient, labor-intensive, and accompanied by high risks.

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