CN212105780U

CN212105780U - Lifting rotary internal flow centralizer

Info

Publication number: CN212105780U
Application number: CN202020469717.1U
Authority: CN
Inventors: 王树坦; 王汝滨; 李建
Original assignee: Binzhou Huawen Machinery Co ltd
Current assignee: Binzhou Huawen Machinery Co ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-12-08
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses a lifting rotary internal flow centralizer, the middle part of the top end of a lower baffle block is provided with a clamping groove, the surface of the middle part of the centralizer body is sleeved with a rotary sleeve, the bottom of the rotary sleeve is positioned at one side of the lower baffle block and symmetrically provided with a mounting groove, the middle part of the mounting groove is provided with a reset spring, one end of the reset spring is connected with a press block, one end of the middle part of the press block close to the centralizer body is fixedly connected with a movable rod, the bottom of the press block is fixedly connected with a clamping block, the top of the centralizer body is positioned at the lower part of an upper connecting block and is provided with an upper clamping block, the utility model has the advantages of scientific and reasonable structure, safe and convenient use, convenient fixation of the rotary sleeve and the lower baffle block through the matching use of the press block and the clamping block, guarantee that the rotary sleeve and the centralizer body rotate simultaneously in the use process, reduce, the device has the advantages that the device has a centralizing effect on the drilling tool, and drilling failure caused by the deflection of the drilling tool is avoided.

Description

Lifting rotary internal flow centralizer

Technical Field

The utility model relates to a petroleum equipment technical field specifically is a lift rotation type internal flow centralizer.

Background

In an oil well produced by a screw pump, a sucker rod rotates in an oil pipe to provide power for the screw pump, mutual abrasion of the sucker rod and the oil pipe is inevitable in relative rotary motion of the sucker rod and the oil pipe, a sucker rod centralizer is generally arranged to perform centralization and antifriction for relieving friction loss, most of centralizers for the screw pump well adopt nonmetallic materials such as nylon and rubber to manufacture abrasion parts, and an all-metal screw pump is mainly used for lifting a thick oil thermal production well;

the resistance that produces when current internal flow centralizer uses is big, makes the drilling tool screens easily, leads to the drilling failure, and has reduced the efficiency of drilling, so the utility model provides a rotary type internal flow centralizer lifts, satisfies people's demand.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lift rotation type internal flow centralizer, the resistance that produces when using that can effectively solve to propose among the above-mentioned background art is big, makes the drilling tool screens easily, leads to the drilling failure, and has reduced the problem of the efficiency of drilling.

In order to achieve the above object, the utility model provides a following technical scheme: a lifting rotary type internal flow centralizer comprises a centralizer body, wherein the top of the centralizer body is fixedly connected with an upper connecting block, the bottom of the centralizer body is fixedly connected with a lower connecting block, through holes are formed in the middles of the centralizer body, the upper connecting block and the lower connecting block, a lower stop block is fixedly mounted at the position, located above the lower connecting block, of the bottom of the centralizer body, a clamping groove is formed in the middle of the top end of the lower stop block, a rotary sleeve is sleeved on the surface of the middle of the centralizer body, mounting grooves are symmetrically formed in the position, located on one side of the lower stop block, of the bottom of the rotary sleeve, a reset spring is mounted in the middle of each mounting groove, one end of each reset spring is connected with a pressing block, a movable rod is fixedly connected to the middle of each pressing block, and a clamping block is fixedly connected to the bottom of each pressing;

the top of centralizer body is located connecting block below position department and installs the dog, the top fixedly connected with annular fixed block of rotatory cover, the bottom of centralizer body is located connecting block one side position department down and has seted up the ring channel, the inside equidistance of ring channel is installed and is extruded the spring, the bottom fixedly connected with extrusion piece of extrusion spring.

Preferably, the fixture block is located inside the clamping groove, the fixture block is clamped inside the clamping groove, and the bottom end of the annular fixing block is attached to the top end of the upper stop block.

Preferably, the rotating sleeve is made of cobalt-based hard alloy, the rotating sleeve is rotatably connected with the centralizer body, the inner wall of the upper connecting block is provided with threads, and the surface of the lower connecting block is provided with threads.

Preferably, the extrusion block and the annular groove are both annular, the size of the extrusion block is equal to that of the annular groove, and the bottom end of the extrusion block extends to the outside of the annular groove.

Preferably, the surface of the rotating sleeve is equidistantly connected with wear-resistant strips through welding, and the surface of the wear-resistant strips is equidistantly and fixedly provided with lugs.

Preferably, the side end of the bump is attached to the inner wall of an external oil pipe, and the wear-resistant strip and the bump are both made of 304 stainless steel.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. be provided with down the dog, the draw-in groove, the rotary sleeve, reset spring, press the briquetting, the movable rod, fixture block and last dog, cooperation through dog and last dog is used down, be convenient for confirm the position of rotary sleeve, cooperation through pressing briquetting and fixture block is used, be convenient for make the rotary sleeve fixed mutually with lower dog, it rotates simultaneously with the centralizer body to guarantee rotary sleeve in the use, resistance when reducing drilling, cooperation through rotary sleeve and centralizer body is used, provide the righting effect to the drilling tool, avoid the drilling tool crooked drilling failure that leads to.

2. Be provided with connecting block, ring channel, extrusion spring and extrusion piece down, be convenient for be connected with the drilling tool through connecting block down, use through the cooperation of extrusion spring and extrusion piece, play certain buffering cushioning effect to the drilling tool, make threaded connection between connecting block and the drilling tool inseparabler down simultaneously, avoid the drilling tool to drop in the use and lead to the drilling failure.

3. The wear-resistant strips and the bumps are arranged, friction between the rotary sleeve and the oil pipe is reduced by matching the wear-resistant strips and the bumps, the torque of the device is reduced, the service life of the device is prolonged, the time for maintaining and overhauling the device is shortened, and the working efficiency is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the installation structure of the lower connecting block of the present invention;

fig. 3 is a schematic view of the mounting structure of the upper stop block of the present invention;

FIG. 4 is a schematic structural diagram of the area A in FIG. 3 according to the present invention;

fig. 5 is a schematic view of the installation structure of the extrusion block of the present invention.

Reference numbers in the figures: 1. a centralizer body; 2. an upper connecting block; 3. a lower connecting block; 4. a through hole; 5. a lower stop block; 6. a card slot; 7. a rotating sleeve; 8. mounting grooves; 9. a return spring; 10. a pressing block; 11. a movable rod; 12. a clamping block; 13. an upper stop block; 14. an annular fixed block; 15. wear resistant strips; 16. a bump; 17. an annular groove; 18. a compression spring; 19. and extruding the block.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1-5, the utility model provides a technical scheme, a lifting rotary internal flow centralizer, which comprises a centralizer body 1, an upper connecting block 2 is fixedly connected with the top of the centralizer body 1, a lower connecting block 3 is fixedly connected with the bottom of the centralizer body 1, the inner wall of the upper connecting block 2 is provided with threads for connecting with a drill rod in a drilling device, the surface of the lower connecting block 3 is provided with threads for connecting with a drilling tool, through holes 4 are respectively arranged at the middle parts of the centralizer body 1, the upper connecting block 2 and the lower connecting block 3, a lower stop block 5 is fixedly arranged at the position of the bottom of the centralizer body 1 above the lower connecting block 3, a clamping groove 6 is arranged at the middle part of the top end of the lower stop block 5, a rotary sleeve 7 is sleeved on the surface of the middle part of the centralizer body 1, the rotary sleeve 7 is made of cobalt-based hard alloy, the hardness is high, the wear resistance, the rotary sleeve 7 is rotatably connected with the centralizer body 1, mounting grooves 8 are symmetrically formed in the position, located on one side of the lower stop block 5, of the bottom of the rotary sleeve 7, a reset spring 9 is mounted in the middle of each mounting groove 8, one end of the reset spring 9 is connected with a pressing block 10, a movable rod 11 is fixedly connected to the middle of the pressing block 10, close to one end of the centralizer body 1, the bottom end of the pressing block 10 is fixedly connected with a clamping block 12, the clamping block 12 is located inside the clamping groove 6, the clamping block 12 is clamped inside the clamping groove 6, the bottom end of the annular fixing block 14 is attached to the top end of the upper stop block 13, the rotary sleeve 7 and the lower stop block 5 are fixed, the rotary sleeve 7 and the centralizer body 1 can rotate simultaneously in the using process, and;

an upper stop block 13 is arranged at the top of the centralizer body 1 and below the upper connecting block 2, the position of the rotary sleeve 7 is convenient to determine through the matching use of the lower stop block 5 and the upper stop block 13, the rotary sleeve 7 is connected with the centralizer body 1, the top of the rotary sleeve 7 is fixedly connected with an annular fixed block 14, the bottom end of the centralizer body 1 is positioned at one side of the lower connecting block 3 and is provided with an annular groove 17, extrusion springs 18 are arranged in the annular groove 17 at equal intervals, the bottom end of each extrusion spring 18 is fixedly connected with an extrusion block 19, the extrusion blocks 19 and the annular groove 17 are both annular, the size of each extrusion block 19 is equal to that of the annular groove 17, the bottom end of each extrusion block 19 extends to the outside of the annular groove 17, play certain buffering cushioning effect to the drilling tool, make the threaded connection between connecting block 3 and the drilling tool inseparabler down simultaneously, avoid the drilling tool to drop in the use and lead to the drilling failure.

The surface equidistance of swivel sleeve 7 has wear resistant strip 15 through welded connection, wear resistant strip 15's surface equidistance fixed mounting has lug 16, lug 16's side is laminated mutually with external oil pipe's inner wall, wear resistant strip 15 and lug 16's material is 304 stainless steel, make wear resistant strip 15 and lug 16's wearability good, reduce the friction between swivel sleeve 7 and the oil pipe, the moment of torsion of device has been reduced, the service life of device has been improved, and reduce the time of maintaining and overhauing the device, and the work efficiency is improved.

The utility model discloses a theory of operation and use flow: in the process of using the lifting rotary internal flow centralizer, firstly, an operator sleeves a rotary sleeve 7 on the surface of the centralizer body 1 from top to bottom to enable a fixture block 12 to be in contact with a lower stop block 5 and simultaneously press two press blocks 10 inwards, a return spring 9 is compressed, the press blocks 10 and a movable rod 11 simultaneously move towards the inside of a mounting groove, the fixture block 12 is also embedded into the mounting groove 8, the rotary sleeve 7 is pushed downwards until the fixture block 12 is not in contact with the lower stop block 5, the fixture block 12 is located in a clamping groove 6, the press blocks 10 are released, the return spring 9 resets to drive the press blocks 10 and the fixture block 12 to move outwards, the bottom end of an annular fixed block 14 is attached to the top end of an upper stop block 13, and the rotary sleeve 7 can be connected with the centralizer body 1;

the device and a drill rod on drilling equipment can be fixed by utilizing the threads in the upper connecting block 2, meanwhile, the drilling tool is connected with the device by utilizing the threads on the surface of the lower connecting block 3, in the installation process of the drilling tool, the top part of the drilling tool upwards extrudes the extrusion block 19, the extrusion spring 18 is compressed until the extrusion block 19 is completely embedded into the annular groove 17, and the extrusion spring 18 and the extrusion block 19 have downward pushing force on the drilling tool, so that the threaded connection between the drilling tool and the lower connecting block 3 is more stable, the connection stability between the device and the drilling tool is improved, and the drilling tool is ensured not to fall off in the use process;

in the use, when connecting block 3 and drilling tool normally bore downwards, swivel sleeve 7 can not rotate, centralizer body 1 bores along with the drilling tool in swivel sleeve 7's inside, if the drilling tool receives the resistance when great, fixture block 12 can extrude with lower dog 5 mutually, make relatively fixed between swivel sleeve 7 and the centralizer body 1, swivel sleeve 7 and centralizer body 1 rotate simultaneously, and play the effect of rightting to the drilling tool, swivel sleeve 7 and oil pipe contact are avoided to wear-resisting strip 15 and lug 16, reduce the friction of device, the service life of device has been improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a lift rotation type internal flow centralizer, includes centralizer body (1), its characterized in that: the top of the centralizer body (1) is fixedly connected with an upper connecting block (2), the bottom of the centralizer body (1) is fixedly connected with a lower connecting block (3), through holes (4) are formed in the middles of the centralizer body (1), the upper connecting block (2) and the lower connecting block (3), a lower stop block (5) is fixedly mounted at the position, located above the lower connecting block (3), of the bottom of the centralizer body (1), a clamping groove (6) is formed in the middle of the top end of the lower stop block (5), a rotary sleeve (7) is sleeved on the surface of the middle of the centralizer body (1), mounting grooves (8) are symmetrically formed in the position, located on one side of the lower stop block (5), of the bottom of the rotary sleeve (7), a reset spring (9) is mounted in the middle of the mounting grooves (8), and one end of the reset spring (9) is connected with a pressing block (10, one end of the middle part of the pressing block (10) close to the centralizer body (1) is fixedly connected with a movable rod (11), and the bottom end of the pressing block (10) is fixedly connected with a clamping block (12);

the top of centralizer body (1) is located connecting block (2) below position department and installs dog (13), the top fixedly connected with annular fixed block (14) of swivel sleeve (7), the bottom of centralizer body (1) is located connecting block (3) one side position department down and has seted up ring channel (17), extrusion spring (18) are installed to the inside equidistance of ring channel (17), the bottom fixedly connected with extrusion piece (19) of extrusion spring (18).

2. The lifting rotary internal flow centralizer of claim 1, wherein: the clamping block (12) is located inside the clamping groove (6), the clamping block (12) is clamped inside the clamping groove (6), and the bottom end of the annular fixing block (14) is attached to the top end of the upper stop block (13).

3. The lifting rotary internal flow centralizer of claim 1, wherein: the rotary sleeve (7) is made of cobalt-based hard alloy, the rotary sleeve (7) is rotatably connected with the centralizer body (1), the inner wall of the upper connecting block (2) is provided with threads, and the surface of the lower connecting block (3) is provided with threads.

4. The lifting rotary internal flow centralizer of claim 1, wherein: the extrusion block (19) and the annular groove (17) are both annular, the size of the extrusion block (19) is equal to that of the annular groove (17), and the bottom end of the extrusion block (19) extends to the outside of the annular groove (17).

5. The lifting rotary internal flow centralizer of claim 1, wherein: the surface of the rotating sleeve (7) is equidistantly connected with wear-resistant strips (15) through welding, and the surface of the wear-resistant strips (15) is equidistantly and fixedly provided with lugs (16).

6. The lifting rotary internal flow centralizer of claim 5, wherein: the side end of the convex block (16) is attached to the inner wall of an external oil pipe, and the wear-resistant strip (15) and the convex block (16) are both made of 304 stainless steel.