An energy-saving oil pumping unit

Abstract

The invention relates to the technical field of pumping units, and discloses an energy-saving pumping unit, comprising a crank rod, one end of the crank rod is fixed with a terminal, and the side wall of the crank rod away from the terminal is fixed with a connecting rod connecting shaft , the crank rod is located at one end of the driving groove and a moving groove is excavated inside, and a counterweight is inserted in the moving groove, and the side walls of both sides of the balancing weight inside the moving groove are fixed with limit tubes, and the Both ends of the crank rod located in the moving groove are cut with limiting grooves, and the top and bottom ends of the crank rod located outside the limiting groove are cut with disassembly grooves. When the crank rod drives the counterweight in the moving groove to rotate, the The weight can be alternately adapted and buffered by the compression of the buffer springs at both ends, so that the rise or fall of the counterweight when rotating can be buffered by the buffer spring to achieve a balanced effect, so that the donkey head is doing It can guarantee a certain speed when nodding.

Description

technical field [0001] The invention relates to the technical field of oil pumping units, in particular to an energy-saving oil pumping unit. Background technique [0002] The pumping unit is composed of a drive mechanism, a reducer, a crank, a counterweight on the crank, a connecting rod, a beam and a donkey head. The drive mechanism drives the drive shaft in the reducer to rotate, and the drive shaft drives the crank to rotate. The other end of the beam drives the donkey head on one side of the beam to nod through the connecting rod. [0003] The donkey head of the transmission energy-saving pumping unit is balanced by the counterweight set on the crank. The counterweight is interspersed and installed inside the crank and is in a fixed state. When the drive device passes through the drive shaft on the reducer When the crank is driven to rotate, the counterweight will rotate along with it. When the crank goes up with the counterweight, one end of the donkey's head will dro...

AI Technical Summary

Problems solved by technology

[0003] The donkey head of the transmission energy-saving pumping unit is balanced by the counterweight on the crank. The counterweight is interspersed and installed inside the crank and is in a fixed state. When the crank is driven to rotate, the counterweight will rotate along with it. When the crank goes up with the counterweight, one end of the donkey's head will go down. Conversely, when the crank goes down with the counterweight, the donkey's head will go up. However, when the counterweight is lowered, due to the greater weight of the crank and the counterweight, the ascent speed of the donkey's head will increase, and when the crank goes up with the counterweight, the speed of the donkey's head will increase, resulting in When the donkey's head is nodding while pumping oil, the problem of poor balance and low efficiency occurs due to inconsistent movement speeds. Therefore, an energy-saving pumping unit is proposed

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