CN205743754U

CN205743754U - Polished rod Deviation rectifier

Info

Publication number: CN205743754U
Application number: CN201620640157.5U
Authority: CN
Inventors: 闫俊杰; 石斌; 李记鹏
Original assignee: Renqiu Lixin Petroleum Machinery Manufacturing Co Ltd
Current assignee: Renqiu Lixin Petroleum Machinery Manufacturing Co Ltd
Priority date: 2016-06-27
Filing date: 2016-06-27
Publication date: 2016-11-30
Anticipated expiration: 2026-06-27

Abstract

A kind of polished rod Deviation rectifier, including, housing, roller, axle and bearing, in housing, it is provided with the groove for installing axle, the two ends of axle are fixed in groove, it is characterized in that: two axles in horizontal direction, are placed in housing up and down, be equipped with two bearings on each axle, two bearing is all equipped with a roller by jump ring, staggering setting in two described rollers left and right one on the other, polished rod extends vertically through housing by the space between two rollers, and the outer rim of its roller has V-shaped groove.The inwall of described V-shaped groove contacts with polished rod friction formula, and the bottom of V-shaped groove does not contacts with polished rod.This utility model has simple in construction, easy to use, is installed on well head and can be effectively prevented polished rod at well head eccentric wear, automatically corrects polished rod angle, decrease packing and the abrasion of polished rod and the race oil phenomenon thereby resulted in, avoid polluting environment, reduce hand labor intensity, save production cost.This device need not power drives, does not produce energy consumption, efficient energy-saving.

Description

Polished rod Deviation rectifier

Technical field

This utility model relates to a kind of polished rod Deviation rectifier, belongs to the technical field in terms of oil exploitation instrument.

Background technology

At present, for oil well eccentric wear problem, main use nylon eccentrically worn preventor and high-strength box cupling, after enforcement, achieve one Fixed eccentric abrasion prevention effect, but only 3 months service life of nylon eccentrically worn preventor, limit eccentric abrasion prevention effect, generation of additionally wearing and tearing Fragment be easily caused holddown, after high-strength box cupling uses, efficiently solve rod collar wear problem, but oil pipe worn and torn More serious, occur in that repeatedly pipe leaks problem.

Chinese utility model patent CN2799837Y discloses a kind of deflection preventing device for polished, and specifically discloses pulley The radian of the chute of outer rim matches with the periphery radian of oil-extractor polish-rod, and its drawback is: formed between pulley outer rim and polished rod Face contacts, and has contact area big, the most once occurs that eccentric wear, pulley and polished rod all can produce large area abrasion, and service life is short.

Summary of the invention

The deficiency existed for above-mentioned technical problem, the purpose of this utility model is to provide a kind of polished rod Deviation rectifier.

A kind of polished rod Deviation rectifier, including, housing (1), roller (2), axle (3) and bearing (4), in housing (1), it is provided with use Installing the groove of axle (3), the two ends of axle (3) are fixed in groove, it is characterised in that: two axles (3) in horizontal direction, are placed in up and down In housing (1), each axle (3) is equipped with two bearings (4), two bearing (4) is all equipped with one by jump ring Individual roller (2), two described rollers (2) left and right one on the other staggers settings, and polished rod (6) passes through between two rollers (2) Space extends vertically through housing (1), and the outer rim of its roller (2) has V-shaped groove (5).

The inwall (7) of described V-shaped groove (5) and polished rod (6) frictional contact, the bottom (8) of V-shaped groove (5) not with polished rod (6) contact.

Be provided with bearing position at roller (2) two ends, two bearings (4) on axle (3) are placed in bearing position.

This utility model has simple in construction, easy to use, is installed on well head and can be effectively prevented polished rod at well head eccentric wear, Automatically correct polished rod angle, decrease packing and the abrasion of polished rod and the race oil phenomenon thereby resulted in, it is to avoid pollute environment, fall Low hand labor intensity, saves production cost.This device need not power drives, does not produce energy consumption, efficient energy-saving.Outside roller The V-shaped groove of edge forms linear contact lay with the periphery of polished rod, has contact area little, and resistance is little, effectively avoids large area abrasion, greatly Big increases the service life.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model；

Fig. 2 is the plan structure schematic diagram of Fig. 1；

Fig. 3 is the partial enlargement structural representation of Fig. 2.

In figure: housing 1, roller 2, axle 3, bearing 4, V-shaped groove 5, polished rod 6, inwall 7, bottom 8.

Detailed description of the invention

As shown in Figure 1, Figure 2, Figure 3 shows, a kind of polished rod Deviation rectifier, including, housing 1, roller 2, axle 3 and bearing 4, at housing 1 Inside being provided with the groove for installing axle 3, the two ends of axle 3 are fixed in groove, it is characterised in that: two axles 3 are in horizontal direction, upper underlying In housing 1, each axle 3 is equipped with two bearings 4, two bearing 4 is all equipped with a roller 2 by jump ring, Polished rod 6 extends vertically through housing 1 by the space between two rollers 2.The outer rim of its roller 2 has V-shaped groove 5, described V-shaped groove The inwall 7 of 5 and polished rod 6 frictional contact, the bottom 8 of V-shaped groove 5 does not contacts with polished rod 6, so can avoid due to linear velocity Large area abrasion between polished rod 6 and V-shaped groove 5 that difference causes, improves the service life of roller 2.

Staggering setting in two described rollers 2 left and right one on the other, one pushes away one and holds up, enters polished rod 6 easily and effectively Row righting is rectified a deviation.

This Deviation rectifier is sleeved on well head, and is bolted, when polished rod 6 drives sucker rod upper and lower suction movement, One on the other, one pushes away one and holds up, automatically corrects the angle of polished rod 6, reach to prevent the purpose of eccentric wear two rollers 2.

Claims

1. a polished rod Deviation rectifier, including, housing (1), roller (2), axle (3) and bearing (4), be provided with in housing (1) for Installing the groove of axle (3), the two ends of axle (3) are fixed in groove, it is characterised in that: two axles (3) in horizontal direction, are placed in shell up and down In body (1), each axle (3) is equipped with two bearings (4), two bearing (4) is all equipped with one by jump ring Roller (2), two described rollers (2) left and right one on the other staggers settings, and polished rod (6) passes through the sky between two rollers (2) Gap extends vertically through housing (1), and the outer rim of its roller (2) has V-shaped groove (5).

A kind of polished rod Deviation rectifier the most according to claim 1, it is characterised in that: the inwall (7) of described V-shaped groove (5) with Polished rod (6) frictional contact, the bottom (8) of V-shaped groove (5) does not contacts with polished rod (6).

A kind of polished rod Deviation rectifier the most according to claim 1, it is characterised in that: it is provided with bearing position, axle at roller (2) two ends (3) two bearings (4) on are placed in bearing position.