CN212337189U

CN212337189U - Centralizer for oil development

Info

Publication number: CN212337189U
Application number: CN202020911915.9U
Authority: CN
Inventors: 魏帅帅; 赵忠友
Original assignee: Tianjin Shanyuan Petroleum Tools Co ltd
Current assignee: Tianjin Shanyuan Petroleum Tools Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-01-12
Anticipated expiration: 2030-05-27

Abstract

The utility model belongs to the field of petroleum machinery, in particular to a centralizer for petroleum exploitation, which is connected with a sucker rod by aiming at the prior mode of adopting screw threads, but when the sucker rod does continuous longitudinal reciprocating motion, the centralizer is easy to loosen, the following proposal is proposed, which comprises a fixed ring, the top of the fixed ring is symmetrically and rotationally connected with two arc-shaped clamping plates, the two arc-shaped clamping plates are jointed, one side of each arc-shaped clamping plate is fixedly provided with a plurality of arc-shaped rods at equal intervals, and a plurality of rollers are rotatably sleeved on the arc-shaped rod at equal intervals, the utility model passes through the sucker rod through the fixed ring and then rotates the two arc-shaped clamping plates, and the two arc-shaped clamping plates are limited, so that the fixed connection of the sucker rod can be realized, can realize replacing driven threaded connection mode to fix, so can prevent effectively that the slippage problem from appearing in centralizer and sucker rod.

Description

Centralizer for oil development

Technical Field

The utility model relates to an oil machinery technical field especially relates to a centralizer for oil development.

Background

In the oil extraction process of the oil field, the eccentric wear of the sucker rod and the inner wall of the oil pipe becomes one of the important factors of each oil field influencing the normal production of the oil pumping well, and the oil pumping well has the following notice number: CN209990453U discloses a centralizer for oil development, including the centralizer body, be located the locking cap of centralizer body both ends, rotate the scraper mechanism who sets up on the locking cap and the centralizer mechanism of suit on the centralizer body. The locking cap makes the reliability higher, and the external diameter of locking cap is greater than the external diameter of centralizer body and can also play the effect that the restriction righting mechanism removed. The scraper mechanism is rotationally arranged on the locking cap, and effective cleaning of the inner wall of the oil pipe can be realized without arranging a plurality of groups of scrapers in a staggered manner. A scraper blade corresponds scraper blade installation sleeve of a threaded connection on the scraper blade erection column, after a certain scraper blade damages, only need change the damage the scraper blade can. The centralizer body is sleeved with the centering mechanism, and the centering mechanism can move in the axial direction and the circumferential direction of the centralizer body and can effectively reduce friction by matching with the balls. A ball corresponds ball installation sleeve of threaded connection on the ball erection column, after certain ball damages, only need to be changed the ball that damages can.

The technical scheme adopts a thread mode to connect the centralizer with the sucker rod, but when the sucker rod continuously reciprocates longitudinally, the centralizer is easy to loosen, so that the centralizer for oil exploitation is provided for solving the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the centralizer is connected with the sucker rod in the mode that the prior technical scheme adopted the screw thread, but when the continuous longitudinal reciprocating motion of sucker rod, lead to the centralizer to appear the shortcoming that the pine takes off easily, and the centralizer for oil development that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a centralizer for oil development, including solid fixed ring, gu fixed ring's top symmetry is rotated and is connected with two arc splint, and two arc splint are laminated mutually, equidistant fixed mounting in one side of arc splint has a plurality of arc poles, and equidistant rotation cover is equipped with a plurality of gyro wheels on the arc pole, the equal fixed mounting in one side that two arc splint are close to each other has the slipmat, and rotate on the arc splint that is located one side and be connected with the dead lever, the one end fixed mounting of dead lever has the connecting seat, and be equipped with the screw rod on the connecting seat, the one end of screw rod and the arc splint threaded connection who is located the opposite side.

Preferably, the connecting seat is provided with an insertion hole, the screw rod penetrates through the insertion hole, the arc-shaped clamping plate on the other side is provided with a thread groove, one end of the screw rod extends into the thread groove and is in threaded connection with the inner wall of the thread groove, and the limiting of the connecting seat can be achieved.

Preferably, the arc-shaped clamping plate on one side is fixedly provided with the mounting seat, the mounting seat is rotatably connected with the mounting rod, one end of the mounting rod is fixedly connected with the other end of the fixing rod, and the fixing rod can be rotatably supported.

Preferably, the screw rod is rotatably sleeved with a connecting ring, an L-shaped rod is fixedly mounted at the top of the connecting ring, a limiting pipe is fixedly mounted at one end of the L-shaped rod, and the limiting pipe is connected with the top of the connecting seat in a sliding manner, so that the screw rod and the connecting seat are connected in a sliding manner.

Preferably, sliding connection has the kelly on the inner wall of spacing pipe, and the top of connecting seat has seted up the draw-in groove, and the bottom of kelly rotates and is connected with the calorie wheel, and the bottom of calorie wheel extends to in the draw-in groove and clamps with the draw-in groove activity, and the cover is equipped with compression spring on the kelly, and compression spring's top and bottom respectively with the inner wall of spacing pipe and the bottom fixed connection of kelly, can realize spacing to the screw rod, can prevent that the threaded rod from carrying out lateral shifting.

The utility model discloses in, a centralizer for oil development:

according to the technical scheme, the sucker rod penetrates through the fixing ring, then the arc-shaped clamping plates can be simultaneously rotated upwards to enable the two arc-shaped clamping plates to be attached to form a clamping state of the sucker rod, then the fixing rod can be rotated to rotate the screw rod to correspond to the notch of the thread groove, the screw rod is pushed to move into the thread groove, then the screw rod can be rotated to enable the screw rod to be in threaded connection with the thread groove, and further the two arc-shaped clamping plates can be limited to enable the two arc-shaped clamping plates to tightly clamp the sucker rod;

when the screw rod moves, the limiting pipe can be driven to move through the L-shaped rod, and when the clamping wheel moves to the position above the clamping groove, the compression spring in a stressed state can drive the clamping rod to move downwards, so that the clamping wheel moves into the clamping groove, and the screw rod can be limited;

the utility model discloses a run through solid fixed ring with the sucker rod, later rotate two arc splint to carry on spacingly to two arc splint, with this alright realize carrying out fixed connection to the sucker rod, can realize replacing driven threaded connection mode to fix, so can prevent effectively that the slippage problem from appearing with the sucker rod in centralizer.

Drawings

Fig. 1 is a front view of the structure of the centralizer for oil exploitation according to the present invention;

fig. 2 is a top view of a connecting structure of a fixing rod and two arc-shaped clamping plates of the centralizer for oil exploitation provided by the utility model;

FIG. 3 is a top view of a connecting structure of an arc-shaped clamp plate and a roller of the centralizer for oil extraction according to the present invention;

fig. 4 is a schematic structural view of a part a in fig. 1 of the centralizer for oil exploitation according to the present invention.

In the figure: 1 fixed ring, 2 arc splint, 3 arc poles, 4 gyro wheels, 5 slipmats, 6 dead levers, 7 connecting seats, 8 screw rods, 9L type pole, 10 spacing pipes, 11 compression spring, 12 kellies, 13 calories of wheels, 14 mount pads.

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.

Referring to fig. 1-4, a centralizer for oil development, including solid fixed ring 1, solid fixed ring 1's top symmetry is rotated and is connected with two arc splint 2, and two arc splint 2 laminate mutually, one side equidistant fixed mounting of arc splint 2 has a plurality of arc pole 3, and equidistant rotation cover is equipped with a plurality of gyro wheels 4 on the arc pole 3, the equal fixed mounting in one side that two arc splint 2 are close to each other has slipmat 5, and be located and rotate on the arc splint 2 of one side and be connected with dead lever 6, the one end fixed mounting of dead lever 6 has connecting seat 7, and be equipped with screw rod 8 on the connecting seat 7, the one end of screw rod 8 and the arc splint 2 threaded connection who is located the opposite side.

Wherein, the technical proposal is that the sucker rod penetrates through the fixed ring 1, then the arc-shaped clamping plates 2 can be simultaneously rotated upwards to ensure that the two arc-shaped clamping plates 2 are jointed to form a clamping state of the sucker rod, then the fixed rod 6 can be rotated to rotate the screw rod 8 to correspond to the notch of the thread groove, the screw rod 8 is pushed to move into the thread groove, then the screw rod 8 can be rotated to ensure that the screw rod is in threaded connection with the thread groove, further the two arc-shaped clamping plates 2 can be limited, so that the two arc-shaped clamping plates 2 can tightly clamp the sucker rod, when the screw rod 8 moves, the L-shaped rod 9 can drive the limiting pipe 10 to move, when the clamping wheel 13 moves to the upper part of the clamping groove, the compression spring 11 in a stress state can drive the clamping rod 12 to move downwards, so that the clamping wheel 13 moves into the clamping groove, thereby the screw rod 8 can be limited, the utility model discloses a run through solid fixed ring 1 with the sucker rod, later rotate two arc splint 2 to carry on spacingly to two arc splint 2, with this alright realize carrying out fixed connection to the sucker rod, can realize replacing driven threaded connection mode to fix, so can effectively prevent the problem that slippage appears in centralizer and sucker rod.

The utility model discloses in, seted up the jack on the connecting seat 7, and the screw rod 8 runs through the jack, is located to set up the thread groove on the arc splint 2 of opposite side, and the one end of screw rod 8 extend to the thread groove in and with the inner wall threaded connection of thread groove, can realize spacing to connecting seat 7.

The utility model discloses in, be located fixed mounting on the arc splint 2 of one side and have mount pad 14, and rotate on the mount pad 14 and be connected with the installation pole, the one end of installation pole and the other end fixed connection of dead lever 6 can realize supporting the rotation of dead lever 6.

The utility model discloses in, the cover is equipped with the go-between on the screw rod 8, and the top fixed mounting of go-between has L type pole 9, and the one end fixed mounting of L type pole 9 has spacing pipe 10, and the top sliding connection of spacing pipe 10 and connecting seat 7, can make screw rod 8 and connecting seat 7 carry out sliding connection.

The utility model discloses in, sliding connection has kelly 12 on the inner wall of spacing pipe 10, and the draw-in groove has been seted up at the top of connecting seat 7, the bottom of kelly 12 is rotated and is connected with calorie wheel 13, and the bottom of calorie wheel 13 extends to in the draw-in groove and clamps with the draw-in groove activity, the cover is equipped with compression spring 11 on the kelly 12, and compression spring 11's top and bottom respectively with the inner wall of spacing pipe 10 and the bottom fixed connection of kelly 12, can realize spacing to screw rod 8, can prevent threaded rod 8 from carrying out lateral shifting.

In the utility model, the sucker rod penetrates through the fixed ring 1, then the arc-shaped clamping plates 2 can be simultaneously rotated upwards to ensure that the two arc-shaped clamping plates 2 are jointed to form a clamping state of the sucker rod, then the fixed rod 6 can be rotated to rotate the screw rod 8 to correspond to the notch of the thread groove, the screw rod 8 is pushed to move into the thread groove, then the screw rod 8 can be rotated to ensure that the screw rod is in threaded connection with the thread groove, further the limitation on the two arc-shaped clamping plates 2 can be realized, when the screw rod 8 is moved, the L-shaped rod 9 can drive the limiting pipe 10 to move, when the clamping wheel 13 is moved to the upper part of the clamping groove, the compression spring 11 in the stress state can drive the clamping rod 12 to move downwards, so that the clamping wheel 13 is moved into the clamping groove, thereby the screw rod 8 can be limited, and the fixation of the thread connection mode replacing transmission can be realized, so can prevent effectively that the slippage problem from appearing with the sucker rod in centralizer, later in with sucker rod insert the oil pipe back, owing to set up a plurality of gyro wheels 4 that can carry out the pivoted on arc splint 2, gyro wheel 4 then can contact with the inner wall of oil pipe to this can realize fixing a position the sucker rod, and when the sucker rod carries out longitudinal movement, can make gyro wheel 4 rotate, with this reducible frictional force that exists with the inner wall of oil pipe.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a centralizer for oil development, including solid fixed ring (1), a serial communication port, the top symmetry of solid fixed ring (1) is rotated and is connected with two arc splint (2), and two arc splint (2) laminate mutually, equidistant fixed mounting in one side of arc splint (2) has a plurality of arc pole (3), and equidistant rotation cover is equipped with a plurality of gyro wheels (4) on arc pole (3), the equal fixed mounting in one side that two arc splint (2) are close to each other has slipmat (5), and rotate on the arc splint (2) that are located one side and be connected with dead lever (6), the one end fixed mounting of dead lever (6) has connecting seat (7), and be equipped with screw rod (8) on connecting seat (7), the one end of screw rod (8) and the arc splint (2) threaded connection who is located the opposite side.

2. The centralizer for oil exploitation according to claim 1, wherein the connecting seat (7) is provided with a jack, the screw (8) penetrates through the jack, the arc-shaped clamping plate (2) on the other side is provided with a thread groove, and one end of the screw (8) extends into the thread groove and is in threaded connection with the inner wall of the thread groove.

3. The centralizer for oil development according to claim 1, wherein the arc-shaped splint (2) on one side is fixedly provided with a mounting seat (14), the mounting seat (14) is rotatably connected with a mounting rod, and one end of the mounting rod is fixedly connected with the other end of the fixing rod (6).

4. The centralizer for oil exploitation according to claim 1, wherein a connecting ring is rotatably sleeved on the screw rod (8), an L-shaped rod (9) is fixedly installed at the top of the connecting ring, a limiting pipe (10) is fixedly installed at one end of the L-shaped rod (9), and the limiting pipe (10) is slidably connected with the top of the connecting seat (7).

5. The centralizer for oil exploitation according to claim 4, wherein a clamping rod (12) is slidably connected to an inner wall of the limiting pipe (10), a clamping groove is formed in the top of the connecting seat (7), a clamping wheel (13) is rotatably connected to the bottom end of the clamping rod (12), the bottom of the clamping wheel (13) extends into the clamping groove and is movably clamped with the clamping groove, a compression spring (11) is sleeved on the clamping rod (12), and the top end and the bottom end of the compression spring (11) are fixedly connected with the inner wall of the limiting pipe (10) and the bottom end of the clamping rod (12) respectively.