CN214292820U

CN214292820U - Sucker rod coupling disassembling clamp

Info

Publication number: CN214292820U
Application number: CN202023038147.XU
Authority: CN
Inventors: 刘孝飞; 柴文龙; 赵胜博; 王俭胜; 王俭阳; 赵小洪
Original assignee: Henan Aokeda Petrochemical Equipment Manufacturing Co ltd
Current assignee: Henan Aokeda Petrochemical Equipment Manufacturing Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-09-28
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a sucker rod collar dismantles anchor clamps belongs to oil well site maintenance operation auxiliary assembly technical field. The large-diameter section is internally provided with a coupling mounting hole along the axial center, and at least three radial bolt connecting holes are uniformly distributed in the circumferential direction of the large-diameter section and are communicated with the coupling mounting hole. The utility model discloses a pack into the inside coupling mounting hole of big footpath section with the sucker rod coupling, close length soon through adjusting bolt, can realize the clamp of different diameter couplings, need not to change and assist the utensil, save man-hour, simple structure, processing and convenient operation, low cost. In addition, through setting up the minor diameter section, easily the clamping of screwing up machine or breakout tongs has reduced the finish machining surface and is difficult for skidding for the coupling, has solved the technical problem that current pair guarantor coupling was dismantled and is easily produced the phenomenon of skidding.

Description

Sucker rod coupling disassembling clamp

Technical Field

The utility model relates to an oil well site maintenance operation auxiliary assembly technical field, concretely relates to anchor clamps are dismantled to sucker rod collar.

Background

At present, a double-protection coupling is often arranged at the lower half section of a sucker rod to play a role of eccentric wear prevention, and the surface of the coupling is provided with a layer of corrosion-resistant and wear-resistant metal powder such as chromium, nickel and the like, so that the friction force of the surface of the coupling is reduced by 15% -35%, but the wear resistance of the coupling is more than 10 times that of a common coupling, and the coupling of the sucker rod and the inner wall of an oil pipe can be protected. And the coupling does not change the structure of the rod column, overcomes the defect of eccentric wear prevention of the centralizer, effectively slows down the wear between the pipe and the rod, and prolongs the service life of the oil pipe and the pump inspection period.

The double-protection coupling has high hardness and smooth outer surface, has small deformation when being clamped, and cannot be disassembled by a common screwing machine. The existing auxiliary tool for disassembling the double-protection coupling adopts a clamping core with a fixed diameter to clamp the coupling with a corresponding size, and then the pipe wrench is used for twisting the auxiliary clamp to realize the disassembly of the coupling.

The existing auxiliary tool for disassembling the double-protection coupling has the following problems: firstly, can not adapt to the structural dimension who changes, the diameter of card heart is fixed, and the size of coupling takes place small change, and the card heart wall can't closely cooperate with the coupling, just can not exert tight effect, and adaptability is poor. Secondly, in order to adapt to the size of the coupling, a corresponding core needs to be produced, and the production cost is high. Thirdly, measuring the size of the coupling, replacing the corresponding auxiliary tool and matching the two tools consumes labor hour. Fourthly, the material cost of the clamping core is high, in order to effectively clamp the coupling, the material of the clamping core adopts high alloy steel 20CrMnTi for surface carburization, and the production cost is high.

Disclosure of Invention

The utility model aims at overcoming prior art's shortcoming, provide a sucker rod coupling dismantles anchor clamps, it is through packing into the inside coupling mounting hole of big footpath section with the sucker rod coupling, utilizes the bolt to pass the bolted connection hole and presss from both sides the coupling tightly, closes length through adjusting bolt soon, can realize the clamp of different diameter couplings tightly, simple structure, processing and convenient operation, low cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the sucker rod coupling disassembling clamp comprises a small-diameter section and a large-diameter section which are integrally formed, a coupling mounting hole is formed in the large-diameter section along the axial center, at least three radial bolt connecting holes are uniformly distributed in the circumferential direction of the large-diameter section, and the bolt connecting holes are communicated with the coupling mounting hole.

As an improvement of the utility model, the bolted connection hole is four, and the central line of four bolted connection holes is in same vertical plane.

As an improvement of the utility model, the bolted connection hole is three, and the central line of three bolted connection hole is in same vertical plane.

As an improvement of the utility model, the outside of bolted connection hole is equipped with connects the face.

As an improvement of the utility model, the inside of path section puts the axial hole of seting up intercommunication coupling mounting hole along axial direction central point, and the aperture of axial hole is less than the aperture of coupling mounting hole.

The utility model has the advantages that: the utility model discloses a sucker rod coupling dismantles anchor clamps, it includes integrated into one piece's path section and path section greatly, and it is through packing into the inside coupling mounting hole of path section greatly with the sucker rod coupling, utilizes the bolt to pass the bolted connection hole and presss from both sides the coupling tightly, closes length soon through adjusting bolt, can realize the clamp of different diameter couplings tightly. That is to say, when there is little difference in sucker rod coupling size, only need adjusting bolt twist length can realize pressing from both sides tightly to the coupling, need not to change and assist the utensil, save man-hour, simple structure, processing and convenient operation utilize the bolt to replace current card heart, low cost. In addition, through setting up the minor diameter section, easily the clamping of screwing up machine or breakout tongs has reduced the finish machining surface and is difficult for skidding for the coupling, has solved the technical problem that current pair guarantor coupling was dismantled and is easily produced the phenomenon of skidding.

Drawings

FIG. 1 is a schematic structural view of a sucker rod coupling dismantling jig according to a first embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is the structural schematic diagram of the sucker rod coupling dismantling clamp in the second embodiment of the present invention.

In the figure, 1, a small diameter section; 2. a large-diameter hole; 3. a large diameter section; 4. a connecting surface; 5. a collar mounting hole; 6. the bolt is connected to the hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

It should be noted that the terms of orientation such as front, back, top and bottom in the embodiments of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.

The first embodiment is as follows:

as shown in figures 1 and 2, the sucker rod coupling dismantling clamp comprises a small-diameter section 1 and a large-diameter section 3 which are integrally formed, a coupling mounting hole 5 is formed in the large-diameter section 3 along the axial center, at least three radial bolt connecting holes 6 are uniformly distributed in the circumferential direction of the large-diameter section 3, and the bolt connecting holes 6 are communicated with the coupling mounting hole 5. Preferably, the number of the bolt coupling holes 6 is four, and the center lines of the four bolt coupling holes 6 are in the same longitudinal plane.

Preferably, the bolt attachment hole 6 is provided with an attachment surface 4 on the outside. The connecting surface 4 can be an axial surface penetrating through the whole large-diameter section 3, which is milled by a milling cutter, namely the connecting surface 4 is milled on the large-diameter section 3 corresponding to the position of the bolt connecting hole 6 by the milling cutter from left to right or from right to left; the connecting surface 4 can also be milled by a milling cutter from front to back or from back to front on the large-diameter section 3 corresponding to the position of the bolt connecting hole 6. The utility model discloses do not do the restriction to having the structure of connecting face 4.

Preferably, for realizing lightweight design, the inside of minor diameter section 1 is seted up along axial central point and is linked together the axial hole 2 of coupling mounting hole 5, and the aperture of axial hole 2 is less than the aperture of coupling mounting hole 5.

The utility model discloses a theory of operation does: the sucker rod coupling is firstly installed in the coupling installation hole 5, then the four bolts are respectively screwed into the four bolt connection holes 6, the sucker rod coupling is clamped through the four bolts, and finally, the small-diameter section is clamped through a screwing machine or a pipe wrench, and the coupling is dismounted. In addition, the screwing length (namely the screwing depth) of the bolt in the bolt connecting hole 6 is adjusted, so that the clamping of couplings with different diameters can be realized, the structure is simple, the processing and the operation are convenient, and the cost is low. In addition, through setting up minor diameter section 1, the clamping of easy screwing machine or breakout tongs has reduced the finish machining surface and is difficult for skidding for the coupling, has solved the technical problem that current pair guarantor coupling was dismantled and is easily produced the phenomenon of skidding.

The bolt is a set screw or a jackscrew, and mainly plays a role in clamping the sucker rod coupling. Preferably, the bolt performance rating is 8.8 and above, and most preferably 12.9. The sucker rod coupling is preferably an existing double-protection coupling, namely a bidirectional protection sucker rod coupling, and the coupling can realize bidirectional protection on the coupling and an oil pipe.

Example two:

as shown in FIG. 3, the sucker rod coupling dismantling clamp of the present embodiment is different from the first embodiment in that: the number of the bolt connecting holes 6 is three, and the central lines of the three bolt connecting holes 6 are in the same longitudinal plane.

The above is a detailed introduction to the sucker rod coupling disassembling jig provided by the utility model, and the structure principle and the implementation mode of the utility model are explained by applying a specific example, and the above example is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. Sucker rod coupling dismantles anchor clamps, its characterized in that: the large-diameter section is provided with a coupling mounting hole along the axial center, and at least three radial bolt connecting holes are uniformly distributed in the circumferential direction of the large-diameter section and communicated with the coupling mounting hole.

2. The sucker rod coupling disassembly jig of claim 1, wherein: the number of the bolt connecting holes is four, and the central lines of the four bolt connecting holes are in the same longitudinal plane.

3. The sucker rod coupling disassembly jig of claim 1, wherein: the number of the bolt connecting holes is three, and the center lines of the three bolt connecting holes are in the same longitudinal plane.

4. The sucker rod coupling disassembly jig of claim 1, wherein: and the outer side of the bolt connecting hole is provided with a connecting surface.

5. The sucker rod coupling disassembly jig of claim 1 or 2 or 3 or 4, wherein: the inside of path section is along axial direction central point to put and is offered the axial hole of intercommunication coupling mounting hole, and the aperture of axial hole is less than the aperture of coupling mounting hole.