CN213297869U

CN213297869U - Sucker rod centralizer of stable performance and installation of being convenient for

Info

Publication number: CN213297869U
Application number: CN202022296283.2U
Authority: CN
Inventors: 龙文达; 李哲辉; 李爱华; 李功平; 田径
Original assignee: Yancheng Hiromichi Petroleum Machinery Co ltd
Current assignee: Yancheng Hiromichi Petroleum Machinery Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-05-28
Anticipated expiration: 2030-10-15

Abstract

The utility model discloses a sucker rod centralizer with stable performance and convenient installation, which comprises a centralizer body and a sucker rod, wherein two sides of the centralizer body are provided with installation discs, an inner groove is arranged inside one side of the installation discs, a roller is arranged inside the inner groove, a rotating shaft transversely runs through the inside of the roller and extends to two side gauge walls of the inner groove; the sucker rod centralizer with stable performance and convenient installation realizes the stability of sucker rod installation and is also convenient for the installation and the disassembly of the centralizer body by arranging the fastening disc, the deformation groove, the fastening cylinder, the fastening screw thread and the screw thread sleeve, thereby improving the working efficiency of the centralizer body and having higher practicability; through setting up mounting disc, inside groove, gyro wheel, pull rod and draw-in groove, can reduce the coefficient of friction of righting the body motion, also reduced the friction consumption of righting the body simultaneously to the life of righting the body has been improved, has ensured the stability of righting body performance with this.

Description

Sucker rod centralizer of stable performance and installation of being convenient for

Technical Field

The utility model relates to a sucker rod centralizer technical field in having oil field production specifically is a sucker rod centralizer of stable performance and installation of being convenient for.

Background

With the rapid development of national economy, the oil exploitation industry has also undergone great changes in equipment and fittings. The structure of the sucker rod centralizer is more and more various, and the sucker rod centralizer is suitable for the exploitation requirements of various oil wells. The oil well eccentric wear downhole tool is prevented during the sucker rod centralizer, the sucker rod moves up and down on the oil pipe column, and due to elastic deformation of the sucker rod, the sucker rod is easy to rub on the inner wall of the pipe, so that the sucker rod falls off and is not easy to salvage after entering the oil pipe, and the sucker rod centralizer is required to be used.

The prior art has the following defects or problems:

1. traditional sucker rod centralizer compact structure, before using, need install through special assembly and disassembly tools, the installation sucker rod centralizer of operating personnel anytime and anywhere of being not convenient for has influenced the work efficiency of sucker rod for sucker rod centralizer's practicality is not high.

2. In addition, the existing sucker rod centralizer is in motion contact with the inner wall of an oil pipe for a long time, so that the friction coefficient is increased, and meanwhile, the friction consumption is gradually increased, so that the use performance of the sucker rod centralizer is influenced, and the service life of the sucker rod centralizer is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a sucker rod centralizer of stable performance and installation of being convenient for, solve the problem of mentioning in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a sucker rod centralizer with stable performance and convenient installation comprises a centralizer body and a sucker rod, wherein installation discs are arranged on two sides of the centralizer body, an inner groove is formed in one side of each installation disc, a roller is arranged in the inner groove, a rotating shaft transversely penetrates through the roller and extends to two side surface walls of the inner groove, fixed seats are arranged at the upper end and the lower end of the roller, a pull rod penetrates through the fixed seats, a clamping groove is formed in the pull rod, which is close to the installation discs, a pressure spring is arranged on the outer ring surface of the pull rod, the pressure spring is located in the fixed seats, a pressing block is arranged on the inner wall of the pull rod, which is close to the fixed seats, flow guide grooves are formed in the outer surface walls of two sides of the centralizer body, a fastening disc is arranged on the upper surface of the centralizer body, external threads are arranged on the outer ring surface of the upper end of the, the outer ring surface of the fastening disc is provided with a fastening cylinder, the inner wall of the fastening cylinder is provided with internal threads, the outer wall is provided with fastening threads, the sucker rod sequentially penetrates through the fastening cylinder, the fastening disc, the centering body and the thread sleeve from top to bottom, and the thread sleeve is arranged on the lower surface wall of the centering body.

As the utility model discloses an optimal technical scheme, the quantity of mounting disc is two sets of, the mounting disc symmetric distribution is at the both sides exterior wall of rightting the body, the shape of inside groove is the fretwork rectangle, and the quantity of inside groove is a plurality of groups, the shape of gyro wheel is cylindric, and the quantity of gyro wheel is the same with the quantity of inside groove, the quantity of pivot is the same with the quantity of gyro wheel, the pivot is connected with the gyro wheel rotation.

As the utility model discloses an optimal technical scheme, the quantity of fixing base is four groups, and is a set of the mounting disc bilateral symmetry sets up two sets of fixing bases, the shape of pull rod is T shape, the quantity of pull rod is the same with the quantity of draw-in groove, the pull rod is pegged graft with the draw-in groove, the pressure spring cup joints with the pull rod, the compact heap is the same with the quantity of pull rod, compact heap and pull rod fixed connection.

As the utility model discloses an optimized technical scheme, the quantity of guiding gutter is a plurality of groups, the guiding gutter symmetric distribution is at the both sides table wall of rightting the body.

As the utility model discloses an optimal technical scheme, the fastening dish comprises cylinder and fretwork centrum, the quantity in deformation groove is two sets of, and warp groove symmetric distribution on the outer table wall of fastening dish.

As the utility model discloses an optimal technical scheme, a fastening section of thick bamboo and sucker rod swing joint, internal thread evenly distributed is on a fastening section of thick bamboo's inner wall, the interior interval size and the interior interval size looks adaptation of internal screw thread of external screw thread, the fastening dish rotates with a fastening section of thick bamboo to be connected.

As the utility model discloses a preferred technical scheme, fastening screw evenly distributed is at the outer anchor ring of sucker rod, the screw thread cover sets up the fastening thread groove of screw thread looks adaptation, the screw thread cover rotates with the fastening screw thread to be connected.

Compared with the prior art, the utility model provides a stable performance and sucker rod centralizer of being convenient for installation possesses following beneficial effect:

1. the sucker rod centralizer with stable performance and convenient installation can be used for penetrating a sucker rod through the fastening cylinder, the fastening disc and the body in sequence and is rotatably connected with the threaded sleeve for righting the lower surface wall of the body through the fastening thread when the body is required to be righted to be installed, the threaded sleeve can provide the limiting and fixing effects on the tail end of the sucker rod, then the sucker rod can be movably sleeved on the fastening cylinder by pulling and is close to the outer annular surface of the fastening disc to rotate through the matching of the internal thread and the external thread, the rotating stress is applied to the outer annular surface of the fastening disc, the deformation groove can be deformed at the same time, the fastening disc is tightly attached to the outer annular surface of the sucker rod under the rotating stress, the installation stability of the sucker rod can be realized, and the problem of lateral deviation after the fixing is prevented, thereby be convenient for right the installation and the dismantlement of body, and then improved the work efficiency who rights the body, the practicality is higher.

2. This sucker rod centralizer of stable performance and installation of being convenient for, through setting up the mounting disc, the inside groove, the gyro wheel, pull rod and draw-in groove, when using the sucker rod centralizer to work in oil pipe, through the inside groove in the mounting disc of both sides, can reduce the coefficient of friction of righting the body motion, the friction consumption of righting the body has also been reduced simultaneously, thereby the life of righting the body has been improved, with this stability of righting the body performance has been ensured, simultaneously under the cooperation of pull rod and draw-in groove, the accessible pulling pull rod, make its pressure spring that encircles in pull rod table wall realize compression deformation, thereby the convenience of the whole dismouting of mounting disc has been made things convenient for, make things convenient for the maintenance of gyro wheel to change, and easy operation is convenient, and more has the multifunctionality.

Drawings

FIG. 1 is an overall sectional view of the present invention;

fig. 2 is a schematic view of the appearance structure of the body of the present invention;

FIG. 3 is a schematic structural view of the fastening cylinder and the fastening plate according to the present invention;

fig. 4 is a schematic view of the fixing base structure of the present invention.

In the figure: 1. righting the body; 2. mounting a disc; 3. an inner tank; 4. a roller; 5. a rotating shaft; 6. a fixed seat; 7. a pull rod; 8. a card slot; 9. a pressure spring; 10. a compression block; 11. a diversion trench; 12. fastening a disc; 13. an external thread; 14. a deformation groove; 15. a fastening cylinder; 16. an internal thread; 17. a sucker rod; 18. fastening threads; 19. and (4) a threaded sleeve.

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.

Referring to fig. 1-4, in this embodiment: a sucker rod centralizer with stable performance and convenient installation comprises a centralizer body 1 and a sucker rod 17, wherein mounting discs 2 are arranged on two sides of the centralizer body 1, an inner groove 3 is formed in one side of each mounting disc 2, a roller 4 is arranged in each inner groove 3, a rotating shaft 5 transversely penetrates through the inside of each roller 4, each rotating shaft 5 extends to two side surface walls of each inner groove 3, a fixed seat 6 is arranged at the upper end and the lower end of each roller 4, a pull rod 7 penetrates through the inside of each fixed seat 6, a clamping groove 8 is formed in the portion, close to the mounting disc 2, of each pull rod 7, a pressure spring 9 is arranged on the outer annular surface of each pull rod 7, each pressure spring 9 is located in each fixed seat 6, a pressing block 10 is arranged on the inner wall, close to the fixed seat 6, of each pull rod 7, a flow guide groove 11 is formed in the outer surface wall of two sides of the centralizer, the middle ends of two sides of the external thread 13 are provided with deformation grooves 14, the outer annular surface of the fastening disc 12 is provided with a fastening cylinder 15, the inner wall of the fastening cylinder 15 is provided with an internal thread 16, the outer wall of the sucker rod 17 is provided with a fastening thread 18, the sucker rod 17 sequentially penetrates through the fastening cylinder 15, the fastening disc 12, the centralizing body 1 and the thread sleeve 19 from top to bottom, and the thread sleeve 19 is arranged on the lower surface wall of the centralizing body 1.

In the embodiment, the number of the mounting discs 2 is two, the mounting discs 2 are symmetrically distributed on the outer surface walls of the two sides of the centering body 1, the inner grooves 3 are hollow rectangles, the number of the inner grooves 3 is a plurality of groups, the rollers 4 are cylindrical, the number of the rollers 4 is the same as that of the inner grooves 3, the number of the rotating shafts 5 is the same as that of the rollers 4, the rotating shafts 5 are rotatably connected with the rollers 4, and the rollers 4 are rotatably matched with the rotating shafts 5, so that the friction coefficient can be reduced when the centering body 1 works, and the service life of the centering body 1 is prolonged; the number of the fixing seats 6 is four, two groups of fixing seats 6 are symmetrically arranged on two sides of one group of the mounting disc 2, the pull rod 7 is T-shaped, the number of the pull rod 7 is the same as that of the clamping grooves 8, the pull rod 7 is inserted into the clamping grooves 8, the pressure spring 9 is sleeved with the pull rod 7, the number of the compression block 10 is the same as that of the pull rod 7, the compression block 10 is fixedly connected with the pull rod 7, and the pull rod 7 can be pulled to surround the pressure spring 9 on the surface wall of the pull rod 7 to realize compression deformation under the matching of the pull rod 7 and the clamping grooves 8, so that the mounting disc 2 is convenient to assemble and disassemble integrally; the guide grooves 11 are arranged in a plurality of groups, the guide grooves 11 are symmetrically distributed on the surface walls of the two sides of the centralizing body 1, and the guide grooves 11 can provide the guide effect of oil extraction when the centralizing body 1 works, so that the smoothness of the work of the centralizing body 1 is provided; the fastening disc 12 consists of a cylinder and hollow-out centrums, the number of the deformation grooves 14 is two, the deformation grooves 14 are symmetrically distributed on the outer surface wall of the fastening disc 12, the deformation grooves 14 can deform through external force, and the fastening disc 12 is attached to the surface wall of the sucker rod 17, so that the position of the sucker rod 17 is stably fixed; the fastening cylinder 15 is movably connected with the sucker rod 17, the internal threads 16 are uniformly distributed on the inner wall of the fastening cylinder 15, the inner space size of the external threads 13 is matched with the inner space size of the internal threads 16, the fastening disc 12 is rotatably connected with the fastening cylinder 15, and the fastening cylinder 15 is matched with the fastening disc 12 and can be rotatably connected with the internal threads 16 through the external threads 13, so that the position fixation of the sucker rod 17 is realized, and the convenience in assembling and disassembling the sucker rod 17 is also provided; the fastening screw threads 18 are uniformly distributed on the outer annular surface of the sucker rod 17, the thread sleeve 19 is provided with a thread groove matched with the fastening screw threads 18, the thread sleeve 19 is rotatably connected with the fastening screw threads 18, the position of the sucker rod 17 can be further stabilized through the matching of the fastening screw threads 18 and the thread sleeve 19, and the sucker rod 17 is prevented from lateral deviation in installation.

The utility model discloses a theory of operation and use flow: firstly, when a user needs to install the centralizing body 1, the sucker rod 17 can sequentially penetrate through the fastening cylinder 15, the fastening disc 12 and the centralizing body 1 and is rotationally connected with the threaded sleeve 19 on the lower surface wall of the centralizing body 1 through the fastening threads 18, the threaded sleeve 19 can provide the limiting and fixing functions of the tail end of the sucker rod 17, then the fastening cylinder 15 movably sleeved on the sucker rod 17 can be pulled and is close to the outer annular surface of the fastening disc 12 to rotate through the matching of the internal threads 16 and the external threads 13, the rotating stress is applied to the outer annular surface of the fastening disc 12, the annular groove 14 can deform at the same time, and the fastening disc 12 is tightly attached to the outer annular surface of the sucker rod 17 under the rotating stress, so that the installation stability of the sucker rod 17 can be realized, the lateral deviation problem after the fixing can be prevented, the installation and the disassembly of the centralizing body 1 are convenient, and the working efficiency of the centralizing body 1 is improved, the practicability is higher; when the oil rod centralizer is used to work in an oil pipe, the friction coefficient of the movement of the centralizing body 1 can be reduced through the inner grooves 3 in the mounting discs 2 on the two sides, the friction consumption of the centralizing body 1 is reduced, the service life of the centralizing body 1 is prolonged, the stability of the use performance of the centralizing body 1 is guaranteed, meanwhile, under the matching of the pull rod 7 and the clamping groove 8, the pull rod 7 can be pulled through pulling, and the compression spring 9 surrounding the surface wall of the pull rod 7 is compressed and deformed, so that the overall mounting discs 2 can be conveniently dismounted and mounted, the idler wheels 4 can be conveniently maintained and replaced, the operation is simple and convenient, and the multifunctional centralizer has more versatility.

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 sucker rod centralizer of stable performance and installation of being convenient for, its characterized in that: the oil pumping device comprises a centering body (1) and an oil pumping rod (17), wherein mounting discs (2) are arranged on two sides of the centering body (1), an inner groove (3) is formed in one side of each mounting disc (2), a roller (4) is arranged in the inner groove (3), a rotating shaft (5) transversely penetrates through the inner part of the roller (4), the rotating shaft (5) extends to two side surface walls of the inner groove (3), fixing seats (6) are arranged at the upper end and the lower end of the roller (4), a pull rod (7) penetrates through the inner part of each fixing seat (6), a clamping groove (8) is formed in the inner part, close to the mounting disc (2), of each pull rod (7), a pressure spring (9) is arranged on the outer annular surface of each pull rod (7), the pressure spring (9) is located in each fixing seat (6), and a pressing block (10) is arranged on the inner wall, close to the, the outer wall of two sides of the centering body (1) is provided with a diversion trench (11), the upper wall of the centering body (1) is provided with a fastening disc (12), the outer ring surface of the upper end of the fastening disc (12) is provided with an external thread (13), the middle ends of two sides of the external thread (13) are provided with deformation grooves (14), the outer ring surface of the fastening disc (12) is provided with a fastening cylinder (15), the inner wall of the fastening cylinder (15) is provided with an internal thread (16), the outer wall of the sucker rod (17) is provided with a fastening thread (18), the sucker rod (17) sequentially penetrates through the fastening cylinder (15), the fastening disc (12), the centering body (1) and a thread sleeve (19) from top to bottom, and the thread sleeve (19) is arranged on the lower wall of the centering body (1).

2. The sucker rod centralizer of claim 1 which is stable in performance and convenient to install, and is characterized in that: the quantity of mounting disc (2) is two sets of, mounting disc (2) symmetric distribution is at the outside table wall of the both sides of righting body (1), the shape of inside groove (3) is the fretwork rectangle, and the quantity of inside groove (3) is a plurality of groups, the shape of gyro wheel (4) is cylindric, and the quantity of gyro wheel (4) is the same with the quantity of inside groove (3), the quantity of pivot (5) is the same with the quantity of gyro wheel (4), pivot (5) are connected with gyro wheel (4) rotation.

3. The sucker rod centralizer of claim 1 which is stable in performance and convenient to install, and is characterized in that: the quantity of fixing base (6) is four groups, and is a set of mounting disc (2) bilateral symmetry sets up two sets of fixing base (6), the shape of pull rod (7) is T shape, the quantity of pull rod (7) is the same with the quantity of draw-in groove (8), pull rod (7) are pegged graft with draw-in groove (8), pressure spring (9) cup joint with pull rod (7), compact heap (10) are the same with the quantity of pull rod (7), compact heap (10) and pull rod (7) fixed connection.

4. The sucker rod centralizer of claim 1 which is stable in performance and convenient to install, and is characterized in that: the guide grooves (11) are arranged in a plurality of groups, and the guide grooves (11) are symmetrically distributed on the surface walls on the two sides of the centering body (1).

5. The sucker rod centralizer of claim 1 which is stable in performance and convenient to install, and is characterized in that: the fastening disc (12) is composed of a cylinder and hollow-out vertebral bodies, the number of the deformation grooves (14) is two, and the deformation grooves (14) are symmetrically distributed on the outer surface wall of the fastening disc (12).

6. The sucker rod centralizer of claim 1 which is stable in performance and convenient to install, and is characterized in that: fastening cylinder (15) and sucker rod (17) swing joint, internal thread (16) evenly distributed is on the inner wall of fastening cylinder (15), the interior interval size of external screw thread (13) and the interior interval size looks adaptation of internal thread (16), fastening dish (12) are connected with fastening cylinder (15) rotation.

7. The sucker rod centralizer of claim 1 which is stable in performance and convenient to install, and is characterized in that: the fastening threads (18) are uniformly distributed on the outer annular surface of the sucker rod (17), the thread sleeve (19) is provided with thread grooves matched with the fastening threads (18), and the thread sleeve (19) is rotationally connected with the fastening threads (18).