CN210829118U

CN210829118U - Diameter-variable stabilizer

Info

Publication number: CN210829118U
Application number: CN201921595774.8U
Authority: CN
Inventors: 吴若静
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-06-23
Anticipated expiration: 2029-09-24

Abstract

The utility model provides a but stabilizer of reducing, includes the body, set up in body on the body upper end, set up in body, set up in the lower body of body lower extreme connect the body, set up in reducing structure on the body, accept in this internal pulling device, reducing structure include the piston, set up in connecting rod on the piston, set up in crooked pole on the connecting rod, set up in the elastic rod at crooked pole both ends, inject the rope, the pulling device is including drawing the piece, being located draw the stay cord of piece below, being located draw the board of stay cord below, set up in smooth ball on the board, being located draw the dead lever of board below, set up in the locating rack of dead lever lower extreme. The utility model discloses can adapt to the wall of a well of different diameters, easy operation, it is convenient to use, can show reduction purchasing cost, and application range is wide, need not to prepare the stabilizer of a large amount of different diameters size to it is effectual to stabilize, is fit for popularizing and applying.

Description

Diameter-variable stabilizer

Technical Field

The utility model belongs to the technical field of the mechanical skill and specifically relates to a but reducing stabilizer is related to.

Background

In the field of oil drilling, a stabilizer is often used to stabilize a drill pipe, so that drilling operation can be smoothly and stably performed. However, in the actual operation process, because the diameter of the well wall is different, and the outer diameter of the stabilizer is fixed, the stabilizers with different outer diameters need to be prepared to adapt to the well walls with different diameters, the purchase cost is high, the use is inconvenient, and the waste of resources can be caused, so that the application of the push rod is not suitable.

Therefore, there is a need to provide a new technical solution to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but effectively solve above-mentioned technical problem's variable diameter stabilizer.

In order to achieve the purpose of the utility model, the following technical proposal is adopted:

the utility model provides a diameter-variable stabilizer, includes the body, set up in body upper end connect on, set up in body lower extreme connects the body down, diameter-variable stabilizer still including set up in diameter-variable structure on the body, accept in this internal pulling device, diameter-variable structure includes the piston, set up in connecting rod on the piston, set up in crooked pole on the connecting rod, set up in the elastic rod at crooked pole both ends, inject the rope, the pulling device is including drawing the piece, being located draw the stay cord of piece below, being located draw the board below, set up in draw smooth ball on the board, be located draw the board below the dead lever, set up in the locating rack of dead lever lower extreme.

Preferably, the lower end of the upper connector is accommodated in the body and is in threaded connection with the body, the inner circumferential surface of the upper connector is provided with internal threads, and the upper end of the lower connector is accommodated in the body and is in threaded connection with the body.

Preferably, the body is provided with a plurality of through holes which are equidistantly distributed in the circumferential direction, the body is further provided with a positioning rod which is contained in the body, the end part of the positioning rod is fixedly connected with the inner surface of the body, and the positioning rod is provided with a first stabilizing hole.

Preferably, the piston is accommodated in the through hole and is in sliding contact with the body, one end of the connecting rod is fixedly connected with the piston, and the other end of the connecting rod is fixedly connected with the bending rod.

Preferably, the middle part of the bending rod protrudes outwards in the radial direction, one end of the elastic rod is fixedly connected with the end part of the bending rod, the other end of the elastic rod abuts against the inner wall of the body and is in sliding contact with the inner wall, one end of the limiting rope is fixedly connected with the inner wall of the body, and the other end of the limiting rope is fixedly connected with the bending rod.

Preferably, the upper end of the pulling part is accommodated in the upper connecting body and is in threaded connection with the upper connecting body, a square opening is formed in the upper end of the pulling part, and a second stabilizing hole is formed in the lower surface of the pulling part.

Preferably, the upper end of the pulling rope is fixedly connected with the lower surface of the pulling piece, the lower end of the pulling rope is fixedly connected with the pulling plate, and the pulling plate is provided with a third stabilizing hole penetrating through the upper surface and the lower surface of the pulling plate.

Preferably, the smooth balls are provided in three numbers and respectively abut against the bent rod, and the smooth balls are fixed on the pulling plate through fixing members.

Preferably, the upper end of the fixing rod is fixedly connected with the pulling plate, the upper end of the positioning frame is fixedly connected with the lower end of the fixing rod, and the positioning frame penetrates through the upper surface and the lower surface of the positioning rod and is in sliding contact with the upper surface and the lower surface of the positioning rod.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses but the stabilizer of reducing can adapt to the wall of a well of different diameters, easy operation, it is convenient to use, can show reduction purchasing cost, and application range is wide, need not to prepare the stabilizer of a large amount of different diameters size to it is effectual to stabilize, is fit for popularizing and applying.

Drawings

Fig. 1 is a schematic structural view of the variable diameter stabilizer of the present invention;

FIG. 2 is a cross-sectional view of the diameter-variable stabilizer of the present invention shown in FIG. 1 along the direction A-A';

fig. 3 is a partial enlarged view of the portion B of the variable diameter stabilizer of the present invention shown in fig. 1.

Detailed Description

The diameter-variable stabilizer of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, the diameter-variable stabilizer of the present invention comprises a body 2, a connecting body 1 disposed on the upper end of the body 2, a lower connecting body 3 disposed on the lower end of the body 2, a diameter-variable structure 3 disposed on the body 2, and a pulling device 5 disposed in the body 2.

As shown in fig. 1 to 3, the lower end of the upper connector 1 is received in the main body 2 and is screwed to the main body 2, so that the upper connector 1 is fixed to the main body 2, and an inner circumferential surface of the upper connector 2 is provided with an internal thread. The upper end of the lower connector 3 is contained in the body 2 and is in threaded connection with the body so as to fix the lower connector 3 at the lower end of the body 2.

As shown in fig. 1 to 3, the body 2 is provided with a plurality of through holes 21 which are equidistantly distributed in the circumferential direction, the number of the through holes 21 is limited, the body 2 is further provided with a positioning rod 22 which is accommodated in the body, the end of the positioning rod 22 is fixedly connected with the inner surface of the body 2, the positioning rod 22 is provided with a first stabilizing hole 221, and a drill rod passes through the first stabilizing hole 221 to stabilize the drill rod.

As shown in fig. 1 to 3, the reducing structure 3 includes a piston 31, a connecting rod 32 disposed on the piston 31, a bending rod 33 disposed on the connecting rod 32, elastic rods 34 disposed at two ends of the bending rod 33, and a limiting rope 35. The piston 31 is accommodated in the through hole 21 and is in sliding contact with the body 2 so that the piston 31 can move in the through hole 21. One end of the connecting rod 32 is fixedly connected with the piston 31, and the other end of the connecting rod 32 is fixedly connected with the bending rod 33. The curved rod 33 is curved, and a middle portion of the curved rod 33 protrudes outward in the radial direction. The number of the elastic rods 34 is two, one end of each elastic rod 34 is fixedly connected with the end of the corresponding bending rod 33, the other end of each elastic rod 34 abuts against the inner wall of the corresponding body 2 and is in sliding contact with the inner wall, the elastic rods 34 are made of elastic materials, and the elastic rods 34 can be bent and deformed so as to play a manufacturing role on the corresponding bending rods 33. Two limiting ropes 35 are provided, one end of each limiting rope 35 is fixedly connected with the inner wall of the body 2, and the other end of each limiting rope 35 is fixedly connected with the bent rod 33.

As shown in fig. 1 to 3, the pulling device 4 includes a pulling member 41, a pulling rope 42 located below the pulling member 41, a pulling plate 43 located below the pulling rope 42, a smooth ball 44 disposed on the pulling plate 43, a fixing rod 45 located below the pulling plate 43, and a positioning bracket 46 disposed at a lower end of the fixing rod 45. The pulling member 41 is a cylinder, the upper end of the pulling member 41 is accommodated in the upper connecting body 1 and is in threaded connection with the upper connecting body, a square opening is formed in the upper end of the pulling member 41 so as to facilitate rotation of the pulling member 41, a second stabilizing hole 411 is formed in the lower surface of the pulling member 41, and a drill rod passes through the second stabilizing hole 411 to stabilize the drill rod. The upper end of the pull cord 42 is fixedly connected to the lower surface of the pulling member 41, and the lower end of the pull cord 42 is fixedly connected to the pulling plate 43. The pulling plate 43 is a cylinder, a third stabilizing hole 431 is formed on the pulling plate 43 to penetrate through the upper and lower surfaces of the pulling plate, and the drill rod passes through the third stabilizing hole 431 to be stabilized. The smooth balls 44 are provided in three and respectively abut against the curved rod 33, the smooth balls 44 are fixed to the pull plate 43 by a fixing member, and the smooth balls 44 are made of a smooth material so as to reduce friction with the curved rod 33. The upper end of the fixing rod 45 is fixedly connected to the pulling plate 43. The upper end of the positioning frame 46 is fixedly connected with the lower end of the fixing rod 45, and the positioning frame 46 penetrates through the upper surface and the lower surface of the positioning rod 22 and is in sliding contact with the upper surface and the lower surface, so that the positioning frame 46 can stably move up and down.

As shown in fig. 1 to 3, when the variable diameter stabilizer of the present invention is used, the present invention is first placed in a well, since the upper end opening of the pulling member 41 is square, at this time, a rectangular block can be inserted into the upper end opening of the pulling member 41, and then rotated, and further the pulling member 41 is rotated, so that the pulling member 41 moves upward in the upper connecting body 1, and further the pulling rope 42 moves upward, the pulling rope 42 pulls the pulling plate 43 upward, so that the pulling plate 43 and the smooth ball 44 move upward, the arrangement of the fixing rod 45 and the positioning frame 46 makes the pulling plate 43 move stably up and down, the ball 44 moves upward to push the bending rod 33, since the bending rod 33 is curved, so that the bending rod 33, the connecting rod 32 and the piston 31 move outward in the radial direction, the elastic rod 34 is curved and deformed, until the piston 31 abuts against the wall of the well, so that the present invention is fixed in the well, therefore, the outer diameter of the stabilizer can be adjusted, the stabilizer is suitable for well walls with different outer diameters, the application range is wide, and the operation is simple. The provision of the curved bars 33 allows the pull plate 43, the smooth ball 44 to be secured between the curved bars 33 and the resilient bar 34 to provide adequate support thereto. Therefore, the utility model discloses but reducing stabilizer use description finishes.

Claims

1. The utility model provides a but reducing stabilizer, includes the body, set up in the body upper end connect the body, set up in connect the body, its characterized in that under the body lower extreme: but the stabilizer of reducing still including set up in reducing structure on the body, accept in this internal pulling device, reducing structure include the piston, set up in connecting rod on the piston, set up in crooked pole on the connecting rod, set up in the elastic rod at crooked pole both ends, injecing the rope, pulling device is including drawing the piece, being located draw the stay cord of piece below, being located draw the board of stay cord below, set up in smooth ball on the board, being located draw the dead lever of board below, set up in the locating rack of dead lever lower extreme.

2. The variable diameter stabilizer of claim 1, wherein: the lower end of the upper connector is contained in the body and is in threaded connection with the body, internal threads are arranged on the inner circumferential surface of the upper connector, and the upper end of the lower connector is contained in the body and is in threaded connection with the body.

3. The variable diameter stabilizer of claim 2, wherein: the body is provided with a plurality of through holes which are distributed equidistantly in the circumferential direction, the body is further provided with a positioning rod which is contained in the body, the end part of the positioning rod is fixedly connected with the inner surface of the body, and the positioning rod is provided with a first stabilizing hole.

4. The variable diameter stabilizer of claim 3, wherein: the piston is contained in the through hole and is in sliding contact with the body, one end of the connecting rod is fixedly connected with the piston, and the other end of the connecting rod is fixedly connected with the bending rod.

5. The variable diameter stabilizer of claim 4, wherein: the middle part of the bending rod protrudes outwards in the radial direction, one end of the elastic rod is fixedly connected with the end part of the bending rod, the other end of the elastic rod abuts against the inner wall of the body and is in sliding contact with the inner wall of the body, one end of the limiting rope is fixedly connected with the inner wall of the body, and the other end of the limiting rope is fixedly connected with the bending rod.

6. The variable diameter stabilizer of claim 5, wherein: the upper end of the pulling piece is contained in the upper connecting body and is in threaded connection with the upper connecting body, a square opening is formed in the upper end of the pulling piece, and a second stabilizing hole is formed in the lower surface of the pulling piece.

7. The variable diameter stabilizer of claim 6, wherein: the upper end of the pull rope is fixedly connected with the lower surface of the pulling piece, the lower end of the pull rope is fixedly connected with the pulling plate, and the pulling plate is provided with a third stabilizing hole penetrating through the upper surface and the lower surface of the pulling plate.

8. The variable diameter stabilizer of claim 7, wherein: the smooth balls are three and are respectively abutted against the bent rods, and the smooth balls are fixed on the pull plate through the fixing piece.

9. The variable diameter stabilizer of claim 8, wherein: the upper end of the fixed rod is fixedly connected with the pulling plate, the upper end of the positioning frame is fixedly connected with the lower end of the fixed rod, and the positioning frame penetrates through the upper surface and the lower surface of the positioning rod and is in sliding contact with the positioning rod.