Automatic-centering universal adjusting device for packing box of oil well

Abstract

The invention, which relates to a pipe, a joint, a pipe fitting or other support units, provides an automatic-centering universal adjusting device for a packing box of an oil well. The automatic-centering universal adjusting device comprises a packing pipe, a packing cap, and a pipe hoop. An upper short connecting pipe and a lower short connecting pipe are connected by a corrugated pipe. An upper clamp is arranged at the upper short connecting pipe in a stationary fit mode; and a lower clamp is arranged at the lower short connecting pipe in a stationary fit mode. More than one radial support rod is arranged on circumferences of the upper clamp and the lower clamp; and each two corresponding support rods are in a longitudinal hinge joint by a connecting rod. According to the invention, the service life of the packing can be prolonged; an eccentric packing wearing phenomenon is avoided and thus an oil leakage phenomenon of a packing box is reduced; and environment pollution can be reduced and resources are saved.

Description

technical field [0001] The invention belongs to a pipe, a joint or a pipe fitting or a supporting device thereof, in particular to a universal adjustment device for a packing box of an oil pumping unit. Background technique [0002] The existing pumping unit packing box is hard-connected, and the centering degree of the sucker rod is adjusted through the monk head. Since the polished rod of the pumping unit of the oil well is a continuous running part, it is difficult to maintain its center and sag during long-term operation. , the eccentric wear of the internal packing is serious, causing the packing box to be damaged, causing the packing box to run out of oil, that is, losing oil and polluting the environment. However, although the existing centering adjustment devices for oil well packing boxes have a large number of applications, due to their small adjustment freedom or large adjustment resistance, the polished rod still wears heavily on the packing box, and the problem ...

AI Technical Summary

Problems solved by technology

[0002] The existing pumping unit packing box is hard-connected, and the centering degree of the sucker rod is adjusted through the monk head. Since the polished rod of the pumping unit of the oil well is a continuous running part, it is difficult to maintain its center and sag during long-term operation. , the eccentric wear of the internal packing is serious, causing the packing box to be damaged, causing the packing box to run out of oil, that is, losing oil and polluting the environment

However, although the existing centering adjustment devices for oil well packing boxes have a large number of applications, due to their small adjustment freedom or large adjustment resistance, the polished rod still wears heavily on the packing box, and the problem of eccentric wear has not been effectively overcome. Short life, heavy maintenance workload, high operating cost

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