Automatic balance adjusting device of beam-pumping unit

Abstract

The invention discloses an automatic balance adjusting device of a beam-pumping unit, and belongs to the field of beam-pumping units. The automatic balance adjusting device comprises a crank, two balancing weights symmetrically arranged on the crank and a protective cover based on the balancing weights in a moving state, the protective cover is connected with a first telescopic rod, two second telescopic rods are symmetrically arranged on the crank, and the movable ends of the second telescopic rods are connected with the corresponding balancing weights. A cylinder sleeve is arranged in the crank, a piston is arranged in the cylinder sleeve and connected with a long rod, the long rod is rotationally connected with one end of a push-pull rod, the other end of the push-pull rod is rotationally connected with the eccentric position of a roller, a groove is formed in the movable end of the crank, the roller is rotationally installed in the groove, a part of the roller is located outside the groove, and the second telescopic rods are connected with the cylinder sleeve through conveying pipelines. According to the automatic balance adjusting device, the positions of the balancing weights do not need to be manually adjusted by a worker, shutdown is not needed, efficiency is higher, an original old oil pumping unit can be transformed, a balancing assembly of the oil pumping unit cannot be excessively overturned, and the device can be produced by an original manufacturer after technical transformation.

Description

technical field [0001] The invention belongs to the field of beam pumping units, in particular to an automatic adjustment and balancing device for beam pumping units. Background technique [0002] The beam pumping unit is one of the main types of pumping units currently used in oilfields, commonly known as the kowtow machine. Due to the unbalanced load of the pumping unit, the motor is under light load in most cases, the utilization rate of electric energy is low, and the energy consumption increases. Therefore, the balance of the pumping unit is very important for energy saving and consumption reduction. At present, a crank balance weight that can automatically adjust the center of gravity has appeared, but its structure is too different from the original manual adjustment balance weight, so it can only be replaced as a whole, while more than 80% of ground mechanical oil recovery equipment uses cranks For balanced beam pumping units, if the technology is upgraded, it will ...

AI Technical Summary

Problems solved by technology

Due to the unbalanced load of the pumping unit, the motor is under light load in most cases, the utilization rate of electric energy is low, and the energy consumption increases. Therefore, the balance of the pumping unit is very important for energy saving and consumption reduction

At present, a crank balance weight that can automatically adjust the center of gravity has appeared, but its structure is too different from the original manual adjustment balance weight, so it can only be replaced as a whole, while more than 80% of ground mechanical oil recovery equipment uses cranks Balanced beam pumping unit, if the technical replacement is completed, will generate a huge load on resources

Images