CN117888834B - Oil rod anti-corrosion centralizer with side arm body adjusting function and method - Google Patents
Oil rod anti-corrosion centralizer with side arm body adjusting function and method Download PDFInfo
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- CN117888834B CN117888834B CN202410302337.1A CN202410302337A CN117888834B CN 117888834 B CN117888834 B CN 117888834B CN 202410302337 A CN202410302337 A CN 202410302337A CN 117888834 B CN117888834 B CN 117888834B
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Abstract
The invention discloses an oil rod anti-corrosion centralizer with a side arm body adjusting function and a method thereof, and relates to the technical field of mineral exploitation, the oil rod anti-corrosion centralizer comprises an oil rod body, wherein a centralizing lantern ring is fixedly sleeved on the outer surface of the oil rod body, a placing groove is formed in the inner surface of the centralizing lantern ring, and one end of a fixing frame is fixedly connected on the outer surface of the centralizing lantern ring, and the oil rod anti-corrosion centralizer has the advantages that: the oil pumping unit has the advantages that the friction force between the centralizer and the inner wall of the oil pipe is reduced, the centralizer can automatically adjust and offset the friction force according to the friction force, the energy loss of the oil pumping unit is reduced, the oil pumping efficiency is guaranteed, the side arm body can adapt to the oil rod body with different shapes, the side arm body can be always clung to the oil rod body, vibration gaps are avoided between the oil rod body and the side arm body, the righting effect of the centralizer on the oil rod is guaranteed, meanwhile, the side arm body can adapt to the oil rod body with various lengths, the application range of the centralizer is enlarged, and the market competitiveness of the centralizer is improved.
Description
Technical Field
The invention relates to the technical field of mineral exploitation, in particular to an oil rod anti-corrosion centralizer with a side arm body adjusting function and a method.
Background
In the development and production of oil fields, mainly oil extraction of oil pumping units, along with the development and production of oil fields, the implementation of technological measures such as inclined wells, horizontal wells, side drilling and the like, eccentric wear generated by a large number of oil pumping rods, couplings and inner walls of oil pipes of the oil wells is more and more serious, the service lives of the oil pipes and the oil pumping rods are greatly shortened, the oil well operation is frequent, the development and production of the oil fields are seriously affected, and the oil pumping rods are righted in order to prevent the eccentric wear generated by the oil pumping rods, the couplings and the inner walls of the oil pipes.
Through retrieving, chinese patent No. CN115354979a discloses an anticorrosive centralizer of sucker rod, although the sucker rod body is protected not by corrosion through anticorrosive aluminum block, increase the anticorrosive of sucker rod body, but its increased centralizer can increase the frictional force with the oil pipe inner wall, its centralizer can't offset frictional force according to frictional force for the energy loss of beam-pumping unit increases, influence pumping efficiency, and the side arm body of this anticorrosive centralizer is fixed straight stalk, it can't make adaptive adjustment according to the form of sucker rod surface, not only make the side arm body hug closely with the sucker rod, reduce the righting effect of sucker rod, still make the side arm body unable adaptation different length's sucker rod use.
Disclosure of Invention
The invention aims to provide an oil rod anti-corrosion centralizer with a side arm body adjusting function and a method.
In order to solve the problems set forth in the background art, the invention provides the following technical scheme: the utility model provides an anticorrosive centralizer of stock with side arm body regulatory function, includes the stock body, the outward facing of stock body has cup jointed the centering lantern ring, the standing groove has been seted up to the internal surface of centering lantern ring, and the surface rigid coupling of centering lantern ring has the one end of mount, the rigid coupling has the dead lever between the inside wall of the other end of mount, cavity and inner chamber have been seted up in the dead lever, the throat has been seted up in the intercommunication between cavity and the inner chamber, the transmission shaft has been cup jointed in the axial of dead lever, the surface rigid coupling of transmission shaft has the paddle, and the both ends of transmission shaft have all fixedly connected with carousel, the one end of rigid coupling has the driving lever on the lateral wall of carousel, the gyro wheel has been cup jointed in the other end slip of driving lever, the spout has been seted up on the lateral wall of gyro wheel, and the internal surface contact of gyro wheel is connected with one side of clamp plate, the rigid coupling has first telescopic link between the opposite side of clamp plate and the surface of dead lever, the surface sliding sleeve has first spring, and the other side rigid coupling of clamp plate has the one end of ejector pin, the other end rigid coupling of ejector pin has the piston.
As a further aspect of the invention: the piston is in sliding sleeve joint with the inner cavity, the ejector rod is in sliding sleeve joint with the top wall of the inner cavity, and one end of the necking communicated with the inner cavity is larger than one end of the necking communicated with the cavity.
As a further aspect of the invention: the utility model discloses a novel electric motor is characterized in that the paddle is provided with a plurality of, and a plurality of paddles about the axis evenly distributed of transmission shaft, the transmission shaft runs through the cavity, and is provided with the sealing member between transmission shaft and the cavity, the mount is provided with four groups, and every group mount all is about righting the surface spiral distribution of lantern ring, install the aluminium piece in righting the channel of lantern ring surface.
As a further aspect of the invention: the rotary table and the deflector rod are both in rotary sleeve joint with the side wall of the fixed frame, the deflector rod is in sliding sleeve joint with the sliding groove, six channels at the outer edge of the sliding groove are uniformly scattered outwards, six pressing plates are arranged, and the six pressing plates are uniformly distributed relative to the central axis of the roller.
As a further aspect of the invention: the inner bottom surface of the first limiting arm is fixedly sleeved with one end of a guide post, the other end of the guide post is slidably sleeved with one end of a guide sleeve, the other end of the guide sleeve is fixedly connected with a second limiting arm, the caulking groove is formed in the top end of the second limiting arm, a groove is formed in the bottom surface of the caulking groove, a second rotating shaft is connected between the side walls of the groove in a rotating mode, a clamping block is sleeved on the outer surface of the second rotating shaft, one end of a second telescopic rod is hinged to the side wall of the clamping block, a connecting block is hinged to the other end of the second telescopic rod, and a second spring is sleeved on the outer surface of the second telescopic rod in a sliding mode.
As a further aspect of the invention: the connecting block is fixedly connected with the bottom surface of the groove, the clamping block is in a tadpole shape, the side wall of the groove is connected with the back surface of the clamping block in a contact manner, a limiting groove is formed in the side wall of the second limiting arm, a sliding ring is sleeved in the limiting groove in a sliding manner, and the sliding ring is fixedly sleeved with the side wall of the first limiting arm.
As a further aspect of the invention: the first limiting arm is embedded and sleeved with the second limiting arm, the sliding block is slidably sleeved with the caulking groove, and the first rotating shaft is rotatably sleeved with the side wall of the caulking groove.
As a further aspect of the invention: the fixture block is connected with the toothed ring in a clamping mode, a plurality of groups of first limiting arms and second limiting arms are arranged, and the outer surfaces of the first limiting arms and the outer surfaces of the second limiting arms are clung to the outer surfaces of the oil rod body.
The method of the oil rod anti-corrosion centralizer with the side arm body adjusting function comprises the following specific steps:
Step one: adjusting the side arm body: pulling a second limiting arm on the first limiting arm to gradually separate the second limiting arm from the first limiting arm, enabling a guide pillar on the first limiting arm to gradually extend out of a guide sleeve, enabling the guide pillar and the guide sleeve to ensure stability of the first limiting arm and the second limiting arm, adjusting the length of a side arm body, rotating the second limiting arm outside a centralizing lantern ring, enabling the second limiting arm to drive the first limiting arm to synchronously move, enabling a sliding block on the first limiting arm to rotate around a first rotating shaft in a caulking groove of an adjacent second limiting arm, and enabling the first limiting arm and the second limiting arm to be gradually closed to an oil rod body until a plurality of groups of first limiting arms and second limiting arms are all clung to the oil rod body;
Step two: use of a sucker rod anti-corrosion centralizer: the centering collar and the fixing frame synchronously move along with the oil rod body, the oil rod body drives the centering collar to be close to the inner wall of the oil pipe, the roller on the centering collar is in contact with the inner wall of the oil pipe until the roller extrudes the inner wall of the oil pipe, and further friction force for preventing the oil rod body and the centering collar from moving is generated.
The technical scheme is adopted: compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, the roller extrudes the inner wall of the oil pipe, so that the roller retreats relative to the fixed rod, the inner surface of the roller extrudes the pressing plate, the other side of the pressing plate pushes the ejector rod and the piston to move, the piston compresses gas in the inner cavity, the gas in the inner cavity is further pressurized and poured into the cavity through the shrinkage opening, the paddle in the cavity is pushed to rotate, the transmission shaft on the paddle drives the turntable to rotate, the deflector rod on the turntable drives the sliding groove on the roller, the roller rotates to accelerate, so that friction force between a part of the roller and the inner wall of the oil pipe can be counteracted, the friction force between the centralizer and the inner wall of the oil pipe is reduced indirectly, meanwhile, the extrusion degree between the roller and the inner wall of the oil pipe is different, and the gas pressure in the inner cavity is also different, so that the centralizer can automatically adjust the size of the counteracted friction force according to the size of the friction force, the energy loss of the oil pumping unit is reduced, and the oil pumping efficiency is ensured.
2. According to the invention, the first limiting arm and the second limiting arm are gradually closed to the oil rod body, so that a plurality of groups of the first limiting arm and the second limiting arm are all clung to the oil rod body, in the process, as the sliding block rotates in the caulking groove, the toothed ring on the sliding block can synchronously rotate, so that the outer edge of the toothed ring extrudes the back surface of the clamping block, the clamping block rotates around the second rotating shaft, and extrudes the second spring on the second telescopic rod, until the sliding block stops rotating along with the first limiting arm, the outer edge of the toothed ring stops limiting the back surface of the clamping block, the clamping block is reset under the rebound of the second spring and is in clamping connection with the toothed ring again, at the moment, the back surface of the clamping block is contacted with the side wall of the groove, and the groove stops the further rotation of the clamping block, so that the groove is matched with the return stroke of the toothed ring, the return stroke of the first limiting arm and the second limiting arm is indirectly limited, the first limiting arm and the second limiting arm are always clung to the oil rod body, the aim of preliminarily adjusting the side arm body is fulfilled, the side arm body can be adapted to the oil rod body with different shapes, the side arm body can always be reset under the rebound of the second spring, and the side arm body is always in the oil rod body is enabled to be clung to the oil rod body, and the vibration body is prevented from being in the clearance to the righting body.
3. According to the invention, the second limiting arm on the first limiting arm is pulled to gradually separate from the first limiting arm, and the guide post on the first limiting arm gradually extends out of the guide sleeve, so that the guide post and the guide sleeve ensure the stability of the first limiting arm and the second limiting arm, the purpose of extending the side arm body is achieved, the fixing operation of the side arm body is repeated, the side arm body is tightly attached to the oil rod body, the purpose of further adjusting the side arm body is achieved due to the length of the fixed side arm body, the side arm body can be suitable for the oil rod body with various lengths, the application range of the centralizer is enlarged, and the market competitiveness of the centralizer is improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an oil rod anti-corrosion centralizer with a side arm body adjusting function;
FIG. 2 is a schematic view of a centralizing collar according to an embodiment of the invention;
FIG. 3 is a cross-sectional view of a mounting bracket according to an embodiment of the present invention;
FIG. 4 is a schematic view of a roller structure according to an embodiment of the present invention;
FIG. 5 is a schematic view of a structure of a fixing rod according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a fixing rod according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view of an internal cavity in an embodiment of the invention;
FIG. 8 is a schematic view of a first limiting arm according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a second limiting arm according to an embodiment of the present invention;
Fig. 10 is an enlarged view of a portion a of fig. 9 according to an embodiment of the present invention.
In the figure: 1. an oil lever body; 2. centralizing the lantern ring; 3. a placement groove; 4. a fixing frame; 5. a fixed rod; 6. a cavity; 7. a transmission shaft; 8. a paddle; 9. a turntable; 10. a deflector rod; 11. a roller; 12. a chute; 13. a pressing plate; 14. a first telescopic rod; 15. a first spring; 16. a push rod; 17. a piston; 18. an inner cavity; 19. necking; 20. the first limiting arm; 21. a slide block; 22. a toothed ring; 23. a first rotating shaft; 24. a guide post; 25. guide sleeve; 26. the second limiting arm; 27. a caulking groove; 28. a groove; 29. a second rotating shaft; 30. a clamping block; 31. a second telescopic rod; 32. a joint block; 33. a second spring; 34. a limit groove; 35. and a sliding ring.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
Referring to fig. 1 to 7, the present invention provides a technical solution: the utility model provides an anticorrosive centralizer of stock and method with side arm body regulatory function, including stock body 1, stock body 1's external surface fixed cup joint has just right lantern ring 2, standing groove 3 has been seted up to the internal surface of just right lantern ring 2, and the surface rigid coupling of just right lantern ring 2 has the one end of mount 4, rigid coupling has dead lever 5 between the inside wall of the other end of mount 4, cavity 6 and inner chamber 18 have been seted up in the dead lever 5, the throat 19 has been seted up in the intercommunication between cavity 6 and the inner chamber 18, rotatory transmission shaft 7 of cup jointing on the axis of dead lever 5, the surface rigid coupling of transmission shaft 7 has paddle 8, and the both ends rigid coupling of transmission shaft 7 has carousel 9, the one end of driving lever 10 has been fixedly connected on the lateral wall of carousel 9, the other end of driving lever 10 has slidingly cup jointed gyro wheel 11, spout 12 has been seted up on the lateral wall of gyro wheel 11, and the internal surface contact of gyro wheel 11 is connected with one side of clamp plate 13, rigid coupling has first telescopic link 14 between the outside surface of first telescopic link 14, the opposite side of clamp plate 13 has slidingly cup jointed first spring 15, and the other side rigid coupling of clamp plate 16 has one end 16, piston 17 has been fixedly connected with the ejector pin 16.
Referring to fig. 6 and 7, the piston 17 is slidably sleeved with the inner cavity 18, the ejector rod 16 is slidably sleeved with the top wall of the inner cavity 18, and the end of the shrinkage opening 19, which is communicated with the inner cavity 18, is larger than the end of the shrinkage opening 19, which is communicated with the cavity 6.
Referring to fig. 2 and 6, the plurality of paddles 8 are provided, the plurality of paddles 8 are uniformly distributed about the central axis of the transmission shaft 7, the transmission shaft 7 penetrates through the cavity 6, sealing elements are arranged between the transmission shaft 7 and the cavity 6, four groups of fixing frames 4 are provided, each group of fixing frames 4 is spirally distributed about the outer surface of the centralizing collar 2, and aluminum blocks are installed in the channels of the outer surface of the centralizing collar 2.
Referring to fig. 3 and 4, the rotary disc 9 and the deflector rod 10 are both rotatably sleeved on the side wall of the fixed frame 4, the deflector rod 10 is slidably sleeved on the sliding groove 12, six channels at the outer edge of the sliding groove 12 are uniformly scattered outwards, six pressing plates 13 are arranged, and the six pressing plates 13 are uniformly distributed about the central axis of the roller 11.
Specifically, in the in-process of using the anticorrosive centralizer of oil pole, the aluminum block of centering lantern ring 2 surface can avoid oil pole body 1 corruption, simultaneously oil pole body 1 is driven by the beam-pumping unit, centering lantern ring 2 and mount 4 can be along with oil pole body 1 synchronous motion, and the drive of beam-pumping unit can make oil pole body 1 deviate its axis removal, thereby make oil pole body 1 drive centering lantern ring 2 to the oil pipe inner wall draw close, make gyro wheel 11 and the oil pipe inner wall contact on the centering lantern ring 2, until gyro wheel 11 extrudes the oil pipe inner wall, and then produce the frictional force that blocks oil pole body 1 and centering lantern ring 2 and remove, in this process, along with gyro wheel 11 extrusion oil pipe inner wall, gyro wheel 11 is moved back for dead lever 5, make the internal surface extrusion clamp plate 13 of gyro wheel 11, thereby make the opposite side of clamp plate 13 promote ejector pin 16 and piston 17 remove, and make the gas in piston 17 compression inner chamber 18, and make the gas in inner chamber 18 further pressurization filling cavity 6 through the throat 19, and promote paddle 8 rotation in cavity 6, make the transmission shaft 7 on paddle 8 drive carousel 9 and oil pipe inner wall contact, and gyro wheel 11, and the frictional force that makes on the gyro wheel 11 and the inner wall 11 offset with the inner wall of gyro wheel 11, thereby the frictional force that can offset with the inner wall 11, the automatic friction force that can be greatly reduced, and the friction force that can offset with the inner wall 11, and the friction force that can be greatly reduced, and the friction force that can offset the inner wall is not offset in the inner wall 11, and the friction force of the inner wall is greatly.
Example 2
Referring to fig. 1,2 and 8-10, the present invention provides a technical solution: an oil rod anti-corrosion centralizer with a side arm body adjusting function and a method are provided, a first limiting arm 20 is fixedly sleeved in a placing groove 3, a sliding block 21 is fixedly connected to the bottom surface of the first limiting arm 20, a toothed ring 22 is fixedly sleeved on the outer surface of the sliding block 21, first rotating shafts 23 are fixedly connected to two sides of the sliding block 21, one end of a guide post 24 is fixedly connected to the inner bottom surface of the first limiting arm 20, one end of a guide sleeve 25 is slidingly sleeved at the other end of the guide post 24, a second limiting arm 26 is fixedly connected to the other end of the guide sleeve 25, a caulking groove 27 is formed in the top end of the second limiting arm 26, a groove 28 is formed in the bottom surface of the caulking groove 27, a second rotating shaft 29 is rotatably connected between the side walls of the groove 28, a clamping block 30 is fixedly sleeved on the outer surface of the second rotating shaft 29, one end of a second telescopic rod 31 is hinged to the side wall of the clamping block 30, a connecting block 32 is hinged to the other end of the second telescopic rod 31, and a second spring 33 is slidingly sleeved on the outer surface of the second telescopic rod 31.
Referring to fig. 8 and 10, the engagement block 32 is fixedly connected to the bottom surface of the groove 28, the clamping block 30 is in a tadpole shape, the side wall of the groove 28 is connected to the back surface of the clamping block 30 in a contact manner, the sliding block 21 is slidably sleeved with the caulking groove 27, and the first rotating shaft 23 is rotatably sleeved with the side wall of the caulking groove 27.
Referring to fig. 1 and 8, the clamping block 30 is clamped with the toothed ring 22, a plurality of groups of first limiting arms 20 and second limiting arms 26 are respectively provided, and the outer surfaces of the first limiting arms 20 and the second limiting arms 26 are respectively clung to the outer surface of the oil rod body 1.
Specifically, in the process of initially adjusting the side arm body of the oil rod anti-corrosion centralizer, the second limiting arm 26 outside the centralizing sleeve ring 2 is rotated, so that the second limiting arm 26 drives the first limiting arm 20 to synchronously move, the sliding block 21 on the first limiting arm 20 rotates around the first rotating shaft 23 in the caulking groove 27 of the adjacent second limiting arm 26, so that the first limiting arm 20 and the second limiting arm 26 can be gradually closed towards the oil rod body 1 until all the groups of the first limiting arm 20 and the second limiting arm 26 are tightly attached to the oil rod body 1, in the process, the toothed ring 22 on the sliding block 21 synchronously rotates along with the rotation of the sliding block 21 in the caulking groove 27, so that the outer edge of the toothed ring 22 presses the back surface of the clamping block 30, the clamping block 30 rotates around the second rotating shaft 29 and presses the second spring 33 on the second telescopic rod 31, until the sliding block 21 stops rotating along with the first limiting arm 20, the outer edge of the toothed ring 22 stops limiting the back surface of the clamping block 30, so that the clamping block 30 is reset under the rebound of the second spring 33 and is clamped with the toothed ring 22 again, at the moment, the back surface of the clamping block 30 is contacted with the side wall of the groove 28, the groove 28 stops further rotation of the clamping block 30, the groove 28 is matched with the clamping block 30 to stop the return stroke of the toothed ring 22, the return stroke of the first limiting arm 20 and the second limiting arm 26 is indirectly limited, the first limiting arm 20 and the second limiting arm 26 are further ensured to be always clung to the oil rod body 1, the purpose of preliminarily adjusting the side arm is achieved, the side arm can adapt to the oil rod body 1 with different shapes, the side arm body can be always clung to the oil rod body 1, an oscillation gap is avoided between the oil rod body 1 and the side arm body, and the righting effect of the centralizer on the oil rod is ensured.
Example 3
Referring to fig. 8 and 9, the present invention provides a technical solution: an anticorrosive centralizer of oil boom with side arm body regulatory function and method, offer the spacing groove 34 in the lateral wall of the second spacing arm 26, the sliding sleeve has been cup jointed in the spacing groove 34, the sliding sleeve 35 is fixed cup jointing with the lateral wall of the first spacing arm 20, the first spacing arm 20 is jogged cup jointed with the second spacing arm 26.
Specifically, in the process of adjusting the length of the side arm body, the second limiting arm 26 on the first limiting arm 20 is pulled, so that the second limiting arm 26 is gradually separated from the first limiting arm 20, and the guide pillar 24 on the first limiting arm 20 gradually extends out of the guide sleeve 25, so that the guide pillar 24 and the guide sleeve 25 ensure the stability of the first limiting arm 20 and the second limiting arm 26, the purpose of extending the side arm body is achieved, the fixing operation of the side arm body is repeated, the side arm body is tightly attached to the oil rod body 1, the length of the side arm body is fixed due to the appearance of the oil rod body 1, the purpose of further adjusting the side arm body is achieved, the side arm body can adapt to the oil rod body 1 with various lengths, the application range of the centralizer is enlarged, and the market competitiveness of the centralizer is improved.
The working principle and the using flow of the invention are as follows: when the righting collar 2 is fixed with the oil rod body 1, the second limiting arms 26 outside the righting collar 2 are rotated, so that the second limiting arms 26 drive the first limiting arms 20 to synchronously move, the sliding blocks 21 on the first limiting arms 20 rotate around the first rotating shafts 23 in the embedded grooves 27 of the adjacent second limiting arms 26, so that the first limiting arms 20 and the second limiting arms 26 can be gradually closed towards the oil rod body 1 until the plurality of groups of the first limiting arms 20 and the second limiting arms 26 are fully clung to the oil rod body 1, in the process, as the sliding blocks 21 rotate in the embedded grooves 27, the toothed rings 22 on the sliding blocks 21 synchronously rotate, so that the outer edges of the toothed rings 22 squeeze the back surfaces of the clamping blocks 30, the clamping blocks 30 rotate around the second rotating shafts 29, and the second springs 33 on the second telescopic rods 31 are squeezed until the sliding blocks 21 stop rotating along with the first limiting arms 20, the outer edge of the toothed ring 22 stops limiting the back surface of the clamping block 30, so that the clamping block 30 resets under the rebound of the second spring 33 and is clamped with the toothed ring 22 again, at the moment, the back surface of the clamping block 30 contacts with the side wall of the groove 28, so that the groove 28 stops further rotation of the clamping block 30, the groove 28 is matched with the clamping block 30 to stop the return stroke of the toothed ring 22, the return stroke of the first limiting arm 20 and the second limiting arm 26 is indirectly limited, the first limiting arm 20 and the second limiting arm 26 are ensured to be always clung to the oil rod body 1, the purpose of preliminarily adjusting the side arm body is achieved, the side arm body can adapt to the oil rod body 1 with different shapes, the side arm body can be always clung to the oil rod body 1, the oscillation gap between the oil rod body 1 and the side arm body is avoided, and the righting effect of the centralizer on the oil rod is ensured;
When the length of the oil rod body 1 changes, the second limiting arm 26 on the first limiting arm 20 is pulled, so that the second limiting arm 26 is gradually separated from the first limiting arm 20, and the guide post 24 on the first limiting arm 20 is gradually extended out of the guide sleeve 25, so that the guide post 24 and the guide sleeve 25 ensure the stability of the first limiting arm 20 and the second limiting arm 26, the purpose of extending the side arm body is achieved, the fixing operation of the side arm body is repeated, the side arm body is tightly attached to the oil rod body 1, the length of the side arm body is fixed due to the appearance of the oil rod body 1, the purpose of further adjusting the side arm body is achieved, the side arm body can adapt to the oil rod body 1 with various lengths, the application range of the centralizer is enlarged, and the market competitiveness of the centralizer is improved;
When the oil rod corrosion-resistant centralizer is needed to be used, the aluminum block on the outer surface of the centralizing lantern ring 2 can avoid corrosion of the oil rod body 1, meanwhile, when the oil rod body 1 is driven by the oil pumping unit, the centralizing lantern ring 2 and the fixing frame 4 can synchronously move along with the oil rod body 1, the oil pumping unit drives the oil rod body 1 to deviate from the axis of the oil rod body, thereby the oil rod body 1 drives the centralizing lantern ring 2 to approach the inner wall of the oil pipe, the roller 11 on the centralizing lantern ring 2 is enabled to be in contact with the inner wall of the oil pipe until the roller 11 extrudes the inner wall of the oil pipe, friction force for obstructing movement of the oil rod body 1 and the centralizing lantern ring 2 is generated, in the process, along with the roller 11 extruding the inner wall of the oil pipe, the roller 11 retreats relative to the fixing rod 5, the inner surface of the roller 11 extrudes the pressing plate 13, so that the other side of the pressing plate 13 pushes the ejector rod 16 and the piston 17 to move, so that the piston 17 compresses gas in the inner cavity 18, the gas in the inner cavity 18 is further pressurized through the shrinkage port 19, the paddle 8 in the cavity 6 is pushed, the paddle 8 rotates, the transmission shaft 7 on the paddle 8 rotates, the turntable 9 rotates with the inner wall of the oil pipe 9 until the roller 11 extrudes the inner wall of the turntable 9, the roller 11 is enabled to be offset with the inner wall of the roller 11, the friction force of the oil rod 11 is offset, the friction force is also greatly reduced, and the friction force can be offset with the inner wall of the roller 11, and the friction force is reduced, and the friction force is greatly reduced, and the friction force is reduced.
The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, and yet fall within the scope of the invention.
Claims (8)
1. The utility model provides an anticorrosive centralizer of oil pole with side arm body regulatory function, its characterized in that includes oil pole body (1), the external surface fixed sleeve who rights lantern ring (2) of oil pole body (1) has cup jointed, standing groove (3) have been seted up to the internal surface that rights lantern ring (2), and the surface rigid coupling that rights lantern ring (2) has the one end of mount (4), rigid coupling has dead lever (5) between the inside wall of the other end of mount (4), cavity (6) and inner chamber (18) have been seted up in dead lever (5), the throat (19) have been seted up in the intercommunication between cavity (6) and inner chamber (18), transmission shaft (7) have been cup jointed in the epaxial rotation of dead lever (5), the external surface rigid coupling of transmission shaft (7) has paddle (8), and carousel (9) have all been fixedly connected at the both ends of transmission shaft (7), the lateral wall of carousel (9) has the one end of driving lever (10) to be fixedly connected, the other end slip cup joint gyro wheel (11) of driving lever (10), the lateral wall of gyro wheel (11) has been seted up on the lateral wall (12) and has been seted up on the lateral wall of gyro wheel (11) and has been connected with the lateral surface (13) between the fixed platen (13) and the fixed platen (13), the outer surface of the first telescopic rod (14) is sleeved with a first spring (15) in a sliding manner, one end of a push rod (16) is fixedly connected to the other side of the pressing plate (13), and a piston (17) is fixedly connected to the other end of the push rod (16);
the utility model discloses a rack, including standing groove (3), fixed cover, rack, guide pin, recess (28) have been seted up on the bottom surface rigid coupling of first spacing arm (20), the surface mounting of recess (21) has cup jointed ring gear (22), and the both sides of slider (21) all rigid coupling have first pivot (23), the inner bottom surface rigid coupling of first spacing arm (20) has the one end of guide pillar (24), the one end of guide pin (25) has been cup jointed in the other end slip of guide pin (24), the other end rigid coupling of guide pin (25) has second spacing arm (26), caulking groove (27) have been seted up on the top of second spacing arm (26), recess (28) have been seted up to the bottom surface of caulking groove (27), rotation is connected with second pivot (29) between the lateral wall of recess (28), the surface mounting of second pivot (29) has cup jointed fixture block (30), the one end of second telescopic link (31) has been articulated on the lateral wall of second telescopic link (31), the other end of second telescopic link (31) articulates and the second spring (33) has cup jointed the second outer surface of second fixture block (31).
2. The oil stem anti-corrosion centralizer with a side arm body adjusting function according to claim 1, wherein: the piston (17) is in sliding sleeve connection with the inner cavity (18), the ejector rod (16) is in sliding sleeve connection with the top wall of the inner cavity (18), and one end of the necking (19) communicated with the inner cavity (18) is larger than one end of the necking (19) communicated with the cavity (6).
3. The oil stem anti-corrosion centralizer with a side arm body adjusting function according to claim 1, wherein: the utility model discloses a novel electric motor is characterized in that paddle (8) are provided with a plurality of, and a plurality of paddles (8) are about the axis evenly distributed of transmission shaft (7), cavity (6) are run through to transmission shaft (7), and are provided with the sealing member between transmission shaft (7) and cavity (6), mount (4) are provided with four groups, and every mount (4) of group all are about the surface spiral distribution of righting lantern ring (2), install the aluminium piece in the channel of righting lantern ring (2) surface.
4. The oil stem anti-corrosion centralizer with a side arm body adjusting function according to claim 1, wherein: the rotary table (9) and the deflector rod (10) are both in rotary sleeving connection with the side wall of the fixed frame (4), the deflector rod (10) is in sliding sleeving connection with the sliding groove (12), six channels at the outer edge of the sliding groove (12) are uniformly scattered outwards, six pressing plates (13) are arranged, and the six pressing plates (13) are uniformly distributed relative to the central axis of the roller (11).
5. The oil stem anti-corrosion centralizer with a side arm body adjusting function according to claim 1, wherein: the connecting block (32) is fixedly connected with the bottom surface of the groove (28), the clamping block (30) is in tadpole-shaped arrangement, the side wall of the groove (28) is connected with the back surface of the clamping block (30) in a contact manner, the side wall of the second limiting arm (26) is internally provided with a limiting groove (34), the sliding ring (35) is sleeved in the limiting groove (34), and the sliding ring (35) is fixedly sleeved with the side wall of the first limiting arm (20).
6. The oil stem anti-corrosion centralizer with a side arm body adjusting function according to claim 1, wherein: the first limiting arm (20) is embedded and sleeved with the second limiting arm (26), the sliding block (21) is in sliding sleeve joint with the caulking groove (27), and the first rotating shaft (23) is in rotating sleeve joint with the side wall of the caulking groove (27).
7. The oil stem anti-corrosion centralizer with a side arm body adjusting function according to claim 1, wherein: the clamping block (30) is clamped with the toothed ring (22), a plurality of groups of first limiting arms (20) and second limiting arms (26) are arranged, and the outer surfaces of the first limiting arms (20) and the outer surfaces of the second limiting arms (26) are tightly attached to the outer surface of the oil rod body (1).
8. A method of an oil stick anti-corrosion centralizer with side arm body adjustment function according to any one of claims 1-7, characterized by: the method comprises the following specific steps:
Step one: adjusting the side arm body: pulling a second limiting arm (26) on the first limiting arm (20), gradually separating the second limiting arm (26) from the first limiting arm (20), gradually extending a guide pillar (24) on the first limiting arm (20) out of a guide sleeve (25), enabling the guide pillar (24) and the guide sleeve (25) to ensure the stability of the first limiting arm (20) and the second limiting arm (26), adjusting the length of a side arm body, rotating a second limiting arm (26) outside a centralizing sleeve ring (2), enabling the second limiting arm (26) to drive the first limiting arm (20) to synchronously move, and enabling a sliding block (21) on the first limiting arm (20) to rotate around a first rotating shaft (23) in a caulking groove (27) of an adjacent second limiting arm (26), so that the first limiting arm (20) and the second limiting arm (26) can be gradually close to an oil rod body (1) until a plurality of groups of first limiting arms (20) and second limiting arms (26) are all tightly attached to the oil rod body (1);
step two: use of a sucker rod anti-corrosion centralizer: the centering collar (2) and the fixing frame (4) synchronously move along with the oil rod body (1), the oil rod body (1) drives the centering collar (2) to be close to the inner wall of the oil pipe, the roller (11) on the centering collar (2) is enabled to be in contact with the inner wall of the oil pipe until the roller (11) extrudes the inner wall of the oil pipe, friction force for preventing the oil rod body (1) from moving with the centering collar (2) is generated, in the process, along with the extrusion of the roller (11) by the inner wall of the oil pipe, the roller (11) retreats relative to the fixing rod (5), the inner surface of the roller (11) extrudes the pressing plate (13), the other side of the pressing plate (13) pushes the ejector rod (16) and the piston (17) to move, the piston (17) compresses gas in the inner cavity (18), the gas in the inner cavity (18) is enabled to be further pressurized into the cavity (6) through the shrinkage mouth (19), the blade (8) in the pushing cavity (6) is enabled to rotate, the transmission shaft (7) on the blade (8) drives the rotating disc (9) to rotate, the inner wall (10) on the rotating disc (9) is enabled to be offset, and the friction force on the rotating part of the rotating disc (11) can be offset with the roller (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410302337.1A CN117888834B (en) | 2024-03-18 | 2024-03-18 | Oil rod anti-corrosion centralizer with side arm body adjusting function and method |
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|---|---|---|---|
| CN202410302337.1A CN117888834B (en) | 2024-03-18 | 2024-03-18 | Oil rod anti-corrosion centralizer with side arm body adjusting function and method |
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| CN117888834B true CN117888834B (en) | 2024-05-10 |
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| CN219795176U (en) * | 2023-09-06 | 2023-10-03 | 山东健源石油工程技术有限公司 | Roller centralizer for rotary well cementation |
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| GB0009884D0 (en) * | 2000-04-20 | 2000-06-07 | Sondex Ltd | Roller centralizer for wireline tools |
| RU2256768C1 (en) * | 2004-02-24 | 2005-07-20 | ООО Фирма "НСЛ" | Universal mechanical centralizing device |
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| CN117888834A (en) | 2024-04-16 |
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