Counter weight balance type petroleum pumping unit

Abstract

The invention belongs to the technical field of oil exploitation equipment, and particularly relates to a counter weight balance type petroleum pumping unit. The counter weight balance type petroleum pumping unit comprises a base and a power part mounted on the top of the base, the power part comprises a power machine and a speed reducer, an output shaft of the speed reducer is connected with a crank, a walking beam is hinged to the top end of the crank, a supporting frame is hinged to the middle of the walking beam, and the bottom of the supporting frame is mounted at the top of the base. Corresponding inclined plates are pushed by wind to deflect upwards, so that a connecting rod and a pushing plate are pushed to move, an inserting plate is inserted into an inserting hole, at the moment, a beam hanger can drive a vertical moving cover to move vertically, sundries can be blocked through the vertical moving cover and an inner barrel, the vertical moving cover and the inner barrel are cylindrical, after being blocked by the inner barrel or the vertical moving cover, the sundries can pass through the side face of the inner barrel or the vertical moving cover, residues of the sundries are reduced, the sundries cannot collide with the beam hanger, smooth operation of work is guaranteed, through vertical movement of the vertical moving cover, the height for blocking the sundries is larger, the blocking range is enlarged, and the blocking effect is improved.

Description

technical field [0001] The invention belongs to the technical field of oil exploitation equipment, in particular to a heavy-hammer balanced oil pumping unit. Background technique [0002] Pumping unit is a kind of machinery and equipment for oil extraction, commonly known as "kowtow machine". The pumping unit is the most important lifting equipment in the rod pumping system. According to whether there is a beam, it can be divided into a beam pumping unit and a beam pumping unit without a beam; the basic characteristics of the beam pumping unit are simple structure, easy manufacture, and convenient use, especially it can be used in oil fields for a long time 24 / 7 operation, reliable use. Therefore, it is still the most widely used pumping unit despite its disadvantages such as large acceleration of the suspension point of the donkey head, poor balance effect, low efficiency, large volume and heavy weight during long strokes; beam pumping The working principle of the oil ma...

AI Technical Summary

Problems solved by technology

[0003] When the pumping unit is working, the debris brought by the windy weather will be dragged on the ground and hit the rope hanger that moves up and down periodically. The impact on the rope hanger and the objects are blocked after the rope hanger The up and down friction with objects will affect the service life of the rope hanger, and some debris will fall into the oil well pump inside the ground, affecting the work of the oil well pump, and it needs to be cleaned up in time

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