CN214403464U

CN214403464U - Centering device for central pull rod of drilling pump

Info

Publication number: CN214403464U
Application number: CN202120424026.4U
Authority: CN
Inventors: 王学军; 张伟; 常本军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-10-15
Anticipated expiration: 2031-02-26

Abstract

The utility model discloses a centering device for a central pull rod of a drilling pump, which comprises a first pipe body and two support rods, a pull rod body penetrates through the first pipe body, the inner side wall of the first pipe body is uniformly and symmetrically hinged with a first rod body, the inner side wall of the first pipe body is evenly and symmetrically articulated with a second rod body, one side of the second rod body far away from the first pipe body is articulated with a second connecting plate through a ball body, the side of the second connecting plate far away from the ball body is uniformly bonded with steel brushes, and the first spring in the first pipe body is used for realizing the secondary prevention of the deviation phenomenon of the pull rod, thereby increasing the stability of the pull rod in the using process by multiple fixation, and by means of the first rod body hinged in the first pipe body, the wax carried in the lifting of the pull rod is scraped and wiped by a steel brush hinged on a second rod body in the first pipe body, thereby guaranteeing the smooth operation of the pull rod and prolonging the service life of the oil pipe and the righting device.

Description

Centering device for central pull rod of drilling pump

Technical Field

The utility model relates to a well drilling pull rod righting technical field specifically is a well drilling pump center pull rod righting device.

Background

The work of drilling a hole in a stratum from the ground by using mechanical equipment or manpower is called well drilling, generally refers to the engineering of exploring or developing liquid and gaseous mineral products such as petroleum, natural gas and the like to drill a well hole and a large-diameter water supply well, the well drilling is a system engineering, is a combined operation of multiple specialties and multiple kinds of equipment, tools and materials, and simultaneously is continuous operation with multiple programs of tight connection and multiple links of rings, the whole construction process has considerable complexity, and the well drilling is widely applied to national economic construction;

at present, in the process of drilling and oil extraction of a drilling pump with eccentric wear, a drilling pump rod moves up and down in an oil pipe, because a central pull rod is not fixed firmly, the pull rod and the wall of the oil pipe are easy to rub, the central pull rod is easy to break off, a conventionally used pull rod centralizer is connected to the pull rod, the outer diameter of a centralizing sleeve is larger than the outer diameter of a pull rod coupling to play a role in centralizing, and the centralizing sleeve is in contact with the oil pipe to achieve the purpose of preventing the eccentric wear of the pull rod, although the eccentric wear of the pull rod can be reduced in the operation process, the service lives of the oil pipe and the centralizer can be influenced, the phenomenon of paraffin deposition inside an oil well is very common, the paraffin deposition of the oil well directly causes the increase of the back pressure of the oil well, the reduction of the yield, the increase of the current of the drilling pump and even the occurrence of pump blockage accidents, the paraffin deposition greatly shortens the paraffin removal period due to serious paraffin deposition, consumes time for paraffin removal and well repair, even causes the individual production of the oil well, and the existing connecting pull rod centralizer has no paraffin removal structure, therefore, the centering device for the center pull rod of the drilling pump is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drilling pump center pull rod righting device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a central pull rod centering device of a drilling pump comprises a first pipe body and two support rods, wherein a pull rod body penetrates through the first pipe body, the inner side wall of the first pipe body is uniformly and symmetrically hinged with a first rod body, the inner side wall of the first pipe body is uniformly and symmetrically hinged with a second rod body, one side, away from the first pipe body, of the second rod body is hinged with a second connecting plate through a ball body, one side, away from the ball body, of the second connecting plate is uniformly bonded with a steel brush, four first springs are symmetrically welded on the inner side wall of the first pipe body, a first connecting plate is welded on one side, away from the first pipe body, of the first connecting plate, a first block body is welded on one side, away from the first spring, of the first connecting plate, two second pipe bodies are symmetrically welded on the inner side wall of the first pipe body and are positioned on two sides of the first spring, and the inner side wall of the second pipe body is connected with a third rod body in a sliding manner, the lateral wall of first body is the laminating of symmetry each other has four second springs.

Preferably: four second through holes are symmetrically formed in the inner side walls of the two supporting rods, and second bolts penetrate through the inner side walls of the second through holes.

Preferably: one side of the second bolt is in threaded connection with one side, far away from the first pipe body, of the second spring.

Preferably: and the inner side walls of the two supporting rods are arranged above the second through holes, and first through holes are formed in the inner side walls of the two supporting rods.

Preferably: a first bolt penetrates through the inner side wall of the first through hole, and a second block body is connected to one side of the first bolt in a threaded mode.

Preferably: two adjacent one side of second block all sets up flutedly, the inside wall laminating in the lateral wall of first body of recess.

Compared with the prior art, the beneficial effects of the utility model are that:

this device passes through the external stability of the fixed pull rod plate body of second block and second spring, thereby realize preventing the skew of pull rod for the first time, with the help of the inside first spring of first body, realize the secondary and prevent that the skew phenomenon from appearing in the pull rod, thereby multiple fixed stability of increasing the pull rod in the use, borrow the inside articulated first body of rod of first body again, strike off the wax that carries in rising back to the pull rod, and clean through articulated steel brush on the inside second body of rod of first body, thereby guarantee smooth and easy and increase oil pipe and the life of righting the device of pull rod in the operation process.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic sectional view of the first tube of the present invention;

fig. 3 is an enlarged schematic structural view of the second spring connecting the first block body according to the present invention;

fig. 4 is an attached schematic view of the first bolt and the second block according to the present invention.

In the figure: 1. a first pipe body; 2. a pull rod body; 3. a first rod body; 4. a second rod body; 5. a sphere; 6. a steel brush; 7. a first spring; 8. a first connecting plate; 9. a first block; 10. a second tube body; 11. a third rod body; 12. a second block; 13. a support bar; 14. a first through hole; 15. a first bolt; 16. a groove; 17. a second through hole; 18. a second bolt; 19. a second spring; 20. a second connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a central pull rod centering device of a drilling pump comprises a first pipe body 1 and two support rods 13, a pull rod body 2 penetrates through the first pipe body 1, a first rod body 3 is evenly and symmetrically hinged on the inner side wall of the first pipe body 1, a second rod body 4 is evenly and symmetrically hinged on the inner side wall of the first pipe body 1, a second connecting plate 20 is hinged on one side, away from the first pipe body 1, of the second rod body 4 through a ball body 5, a steel brush 6 is evenly bonded on one side, away from the ball body 5, of the second connecting plate 20, four first springs 7 are symmetrically welded on the inner side wall of the first pipe body 1, a first connecting plate 8 is welded on one side, away from the first pipe body 1, of the first connecting plate 8, a first block body 9 is welded on one side, away from the first spring 7, two second pipe bodies 10 are symmetrically welded on the inner side wall of the first pipe body 1 and on two sides of the first spring 7, a third rod body 11 is slidably connected on the inner side wall of the second pipe bodies 10, the outer side wall of the first pipe body 1 is symmetrically attached with four second springs 19.

In this embodiment, specifically: four second through holes 17 have been seted up to two bracing pieces 13's inside wall symmetry, and the inside wall of second through hole 17 runs through there is second bolt 18, through setting up second through hole 17, is convenient for running through of second bolt 18 to convenient and fast's connection second spring 19 more.

In this embodiment, specifically: one side threaded connection of second bolt 18 is in the one side that first body 1 was kept away from to second spring 19, through setting up second bolt 18 and connecting second spring 19, realizes the fixed effect of second spring 19 to first body 1 on the one hand, and on the other hand realizes carrying out convenient change when its elastic property reduces after second spring 19 uses for a long time to reach the result of use of righting the device body.

In this embodiment, specifically: first through-hole 14 has all been seted up to the inside wall of two bracing pieces 13 and the top that is located second through-hole 17, through setting up first through-hole 14, is convenient for run through of first bolt 15.

In this embodiment, specifically: first bolt 15 has been run through to the inside wall of first through-hole 14, and one side threaded connection of first bolt 15 has second block 12, borrows by first bolt 15 to run through first through-hole 14, convenient connection second block 12 to increase the stability when second block 12 is fixed first body 1.

In this embodiment, specifically: adjacent one side of two second blocks 12 all is seted up flutedly 16, and the inside wall laminating of recess 16 is in the lateral wall of first body 1, through setting up recess 16, on the one hand increase with the area of contact of first body 1 increase stability, on the other hand realizes fixing for the first time of first body 1, prevents that pull rod body 2 in the first body 1 from producing the skew and driving first body 1 and producing the skew at the operation in-process.

Working principle or structural principle: when the device is used, an operator penetrates the pull rod body 2 connected with the drilling pump into the first pipe body 1, penetrates the first through hole 14 by using the first bolt 15, connects the second block 12 by using one side of the first bolt 15, clamps the first pipe body 1 by using the groove 16 formed in the second block 12, prevents the pull rod body 2 in the first pipe body 1 from generating deviation in the operation process to drive the first pipe body 1 to generate deviation, penetrates the second bolt 18 by using the second through hole 17 formed in the support rod 13, welds the second spring 19 by using one side of the second bolt 18, performs secondary reinforcement prevention on the outside of the first pipe body 1, connects the second spring 19 by using the second bolt 18, is convenient to replace after the elasticity of the second spring 19 is reduced after the second spring 19 is used for a long time, thereby increasing the use effect of the whole device, penetrates the pull rod body 2 in the first pipe body 1, and is fixed by the first spring 7 connected in the first pipe body 1, prevent that the pull rod body 2 from producing the skew in service, borrow by the third body of rod 11 and slide in the inside of second body 10, the better elasticity performance that utilizes first spring 7 through articulating at the inside first body of rod 3 of first body of rod 1, clear away the wax that the pull rod body 2 carried in the process of rising again to wipe the pull rod body 2 through the steel brush 6 on the articulated first connecting plate 8 of second body of rod 4, increase the holistic and tub of life of well pump with this.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a drilling pump center pull rod righting device, includes first body (1) and two bracing pieces (13), its characterized in that: a pull rod body (2) penetrates through the first pipe body (1), a first rod body (3) is hinged to the inner side wall of the first pipe body (1) in an even and symmetrical mode, a second rod body (4) is hinged to the inner side wall of the first pipe body (1) in an even and symmetrical mode, a second connecting plate (20) is hinged to one side, away from the first pipe body (1), of the second rod body (4) through a ball body (5), a steel brush (6) is bonded to one side, away from the ball body (5), of the second connecting plate (20), four first springs (7) are symmetrically welded to the inner side wall of the first pipe body (1), a first connecting plate (8) is welded to one side, away from the first springs (7), of the first connecting plate (8), a first block body (9) is welded to one side, away from the first springs (7), two second pipe bodies (10) are symmetrically welded to the inner side wall of the first pipe body (1) and located on the two sides of the first springs (7), the inside wall sliding connection of second body (10) has the third body of rod (11), the mutual symmetry laminating of the outside wall of first body (1) has four second springs (19).

2. The drill pump center rod centralizer of claim 1, wherein: four second through holes (17) are symmetrically formed in the inner side walls of the two support rods (13), and second bolts (18) penetrate through the inner side walls of the second through holes (17).

3. The drill pump center rod centralizer of claim 2, wherein: one side of the second bolt (18) is in threaded connection with one side, away from the first pipe body (1), of the second spring (19).

4. The drill pump center rod centralizer of claim 1, wherein: and the inner side walls of the two support rods (13) are provided with first through holes (14) above the second through holes (17).

5. The drill pump center rod centralizer of claim 4, wherein: a first bolt (15) penetrates through the inner side wall of the first through hole (14), and a second block body (12) is connected to one side of the first bolt (15) in a threaded mode.

6. The drill pump center rod centralizer of claim 5, wherein: two adjacent one side of second block (12) all is seted up recess (16), the lateral wall laminating in the lateral wall of first body (1) of the inside wall of recess (16).