CN220203825U - Sucker rod elevator assembly - Google Patents
Sucker rod elevator assembly Download PDFInfo
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- CN220203825U CN220203825U CN202321218438.8U CN202321218438U CN220203825U CN 220203825 U CN220203825 U CN 220203825U CN 202321218438 U CN202321218438 U CN 202321218438U CN 220203825 U CN220203825 U CN 220203825U
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- positioning
- sucker rod
- rod
- rod body
- coupler
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Abstract
The utility model discloses a sucker rod elevator assembly, which comprises a tubular fixed shaft, wherein an upper rotating body and a lower rotating body are arranged at the tail part of the fixed shaft, the lower rotating body is connected with the upper rotating body through a plurality of connecting screws, a driving motor is arranged at the inner end of the fixed shaft, a coupler is arranged at the top of the lower rotating body, the driving motor drives the coupler, a detachable clamp is arranged on the side wall of the lower rotating body, a through coupling screw hole is arranged at the center of the coupler, and a detachable positioning rod is arranged at the tail part of the coupling screw hole. The positioning function of the positioning rod is utilized, and whether the top of the sucker rod is provided with a coupling or not, the positioning of the sucker rod can be accurately completed, so that a wrench of the sucker rod is successfully clamped by the clamp holder, and then the lifting operation of the sucker rod is completed.
Description
Technical Field
The utility model relates to a well repair tool, in particular to a sucker rod elevator assembly.
Background
Sucker rod elevator is a common well repair tool used for lifting sucker rods.
The utility model patent CN210888841U discloses a sucker rod elevator, which comprises an oil pipe elevator and a fixed shaft, and is characterized in that the fixed shaft penetrates through an axial hole of the oil pipe elevator from top to bottom, a fixed shaft clamping block is arranged in the oil pipe elevator, the fixed shaft clamping block is connected with a clamping block opening and closing power mechanism, the upper end of the fixed shaft is connected with a slip-resisting nut, a compression spring is sleeved at a position between the fixed shaft clamping mechanism and the slip-resisting nut on the fixed shaft, the fixed shaft is of a steel pipe structure with an inner axial cavity, a supporting baffle is arranged at the lower part of the oil pipe elevator, and the lower part of the fixed shaft is connected with a sucker rod clamping mechanism.
In the above-described structure, however,
the alignment of the sucker rod elevator clamping block and the sucker rod wrench is positioned by the sucker rod coupling, when the sucker rod elevator clamps the sucker rod, the inner end surface of the lower rotating body of the sucker rod elevator contacts with the upper end surface of the sucker rod coupling, and the sucker rod elevator clamping block is well within the length range of the sucker rod wrench, so that the sucker rod coupling is required to be arranged on the sucker rod to successfully clamp the sucker rod. To realize that the coupling is on the sucker rod, the back-up tongs of the hydraulic power tongs must clamp the coupling when the coupling is broken out, the wrench side of the sucker rod is arranged on the main tongs coupling, and the back-up tongs of the hydraulic power tongs clamp the coupling in actual use have slipping, so that the phenomenon that the coupling is arranged at the lower part of the sucker rod after the coupling is broken out often occurs. The sucker rod elevator cannot be successfully clamped to the wrench side of the sucker rod due to the fact that no coupling exists.
Disclosure of Invention
The utility model mainly solves the technical problems existing in the prior art, thereby providing a sucker rod elevator assembly.
The technical problems of the utility model are mainly solved by the following technical proposal:
a sucker rod elevator component comprises a tubular fixed shaft, an upper rotating body and a lower rotating body are arranged at the tail part of the fixed shaft, the lower rotating body is connected with the upper rotating body through a plurality of connecting screws,
the inner end of the fixed shaft is provided with a driving motor, the top of the lower rotating body is provided with a coupler, the driving motor drives the coupler, the side wall of the lower rotating body is provided with a detachable clamp holder, the device is characterized in that,
the center of the coupler is provided with a through coupling screw hole, and the tail part of the coupling screw hole is provided with a detachable positioning rod.
As a preferred embodiment of the utility model, the lower rotating body comprises a cylindrical lower rotating cylinder body and a disc-shaped lower rotating disc body, a clamp holder mounting seat and a penetrating clamp opening are arranged on the outer wall of the lower rotating cylinder body, and the clamp holder is mounted on the clamp holder mounting seat through screws.
As a preferred embodiment of the utility model, a disc-shaped shaft coupling fixing disc is arranged at the bottom of the shaft coupling, a plurality of shaft coupling fixing disc holes are formed in the shaft coupling fixing disc, and the shaft coupling fixing disc holes are connected with the lower rotating body through a plurality of shaft coupling screws.
As a preferred embodiment of the utility model, the clamp comprises a clamping base, an oil cylinder is arranged on the clamping base, and a U-shaped clamping block is arranged at the head part of the oil cylinder.
As a preferred embodiment of the utility model, the positioning rod comprises a first positioning rod body, the head part of the first positioning rod body is provided with a first rod body thread head, the middle part of the first positioning rod body is provided with an annular first positioning shoulder, the tail part of the first positioning rod body is provided with a hollow rod body pipeline, the rod body pipeline is hexagonal, and the side wall of the rod body pipeline is provided with a pipe side hole.
As a preferred embodiment of the present utility model, the positioning rod comprises a first positioning rod body, the head of the first positioning rod body is provided with a first rod body thread head, the middle part of the first positioning rod body is provided with an annular first positioning shoulder, and the tail part of the first positioning rod body is provided with a six-prismatic rod body tail column.
As a preferred embodiment of the utility model, the outer diameter of the first positioning rod body is smaller than the inner diameter of the coupling.
As a preferred embodiment of the utility model, the sucker rod elevator assembly further comprises a positioning column, the positioning column comprises a second positioning rod body, the head of the second positioning rod body is provided with a second rod body thread head, the middle part of the second positioning rod body is provided with an annular second positioning shoulder, the tail part of the second positioning rod body is provided with a hexagonal prism-shaped rod body tail column, an annular positioning plate is sleeved on the second positioning rod body, a positioning center hole is arranged in the center of the positioning plate, an annular lining table is arranged on the bottom end face of the positioning plate, a tubular positioning barrel is arranged below the positioning plate, and the positioning column, the positioning plate and the positioning barrel form a positioning assembly.
As a preferred embodiment of the utility model, the inner diameter of the positioning barrel is matched with the outer diameter of the lining table.
As a preferred embodiment of the utility model, the tail part of the positioning barrel is provided with a horn-shaped barrel opening.
The sucker rod elevator assembly has the following advantages:
the sucker rod elevator assembly can accurately complete the positioning of the sucker rod by utilizing the positioning function of the positioning rod no matter whether the top of the sucker rod is provided with a coupling or not, so that the wrench side of the sucker rod is successfully clamped by the clamp holder, and then the lifting operation of the sucker rod is completed.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a sucker rod elevator assembly of the present utility model;
FIG. 2 is an exploded perspective view of the sucker rod elevator assembly of FIG. 1;
FIG. 3 is a schematic view of a partial cross-sectional configuration of the sucker rod elevator assembly of FIG. 1;
FIG. 4 is a further perspective view of the sucker rod elevator assembly of FIG. 1;
FIG. 5 is an exploded perspective view of the sucker rod elevator assembly of FIG. 4;
FIG. 6 is a schematic view of a partial cross-sectional configuration of the sucker rod elevator assembly of FIG. 4;
FIG. 7 is an enlarged schematic view of a detail of area A of the sucker rod elevator assembly of FIG. 6;
FIG. 8 is a schematic perspective view of a locating lever of the sucker rod elevator assembly of FIG. 6;
FIG. 9 is a cross-sectional view of the detent lever of FIG. 8 taken along line B-B;
FIG. 10 is a schematic illustration of the operation of the sucker rod elevator assembly of FIG. 1 with a collar on the top of the sucker rod and the sucker rod ready to begin to be clamped;
FIG. 11 is a schematic illustration of the operation of the sucker rod elevator assembly of FIG. 1, with a coupling missing from the top of the sucker rod, and the sucker rod ready to begin to be clamped;
FIG. 12 is a schematic illustration of the operation of the sucker rod elevator assembly of FIG. 1, with a coupling missing from the top of the sucker rod and the sucker rod being clamped;
FIG. 13 is a partial perspective view of another embodiment of a sucker rod elevator assembly of the present utility model;
FIG. 14 is an exploded perspective view of the sucker rod elevator assembly of FIG. 13;
FIG. 15 is a schematic perspective view of a positioning assembly of the sucker rod elevator assembly of FIG. 14;
FIG. 16 is an exploded perspective view of the positioning assembly of FIG. 15;
FIG. 17 is a schematic perspective view of the positioning assembly of FIG. 15, shown from another perspective;
FIG. 18 is a cross-sectional view of the positioning assembly of FIG. 17 taken along line C-C;
FIG. 19 is a schematic view of the operation of the sucker rod elevator assembly of FIG. 13 with a collar on the top of the sucker rod and the sucker rod ready to begin to be clamped;
FIG. 20 is a schematic illustration of the operation of the sucker rod elevator assembly of FIG. 13 with a collar on the top of the sucker rod and the sucker rod clamped;
FIG. 21 is an enlarged schematic view of the detail of region D in FIG. 20;
FIG. 22 is a schematic illustration of the operation of the sucker rod elevator assembly of FIG. 13, with the top of the sucker rod missing and the sucker rod ready to begin to be clamped;
FIG. 23 is a schematic illustration of the operation of the sucker rod elevator assembly of FIG. 13, with the top of the sucker rod missing and the sucker rod clamped.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
As shown in fig. 1 to 7, the sucker rod elevator assembly 1 comprises a tubular fixed shaft 2, an upper rotating body 3 and a lower rotating body 4 are arranged at the tail part of the fixed shaft 2, and the lower rotating body 4 is connected with the upper rotating body 3 through a plurality of connecting screws 5.
The inner end of the fixed shaft 2 is provided with a driving motor 31, the top of the lower rotating body 4 is provided with a coupler 8, the driving motor 31 drives the coupler 8, and the side wall of the lower rotating body 4 is provided with a detachable clamp 6.
The holder 6 comprises a holder base 61, an oil cylinder 62 is arranged on the holder base 61, and a U-shaped holder block 63 is arranged at the head of the oil cylinder 62. The manner in which the holder 6 operates will be described further below.
The center of the coupling 8 is provided with a through coupling screw hole 81, and the tail part of the coupling screw hole 81 is provided with a detachable positioning rod 11. The bottom of the coupler 8 is provided with a disc-shaped coupler fixing plate 82, the coupler fixing plate 82 is provided with a plurality of coupler fixing plate holes 821, and the coupler fixing plate holes 821 are connected with the lower rotating body 4 through a plurality of coupler screws 9.
As shown in fig. 4, the lower rotating body 4 comprises a cylindrical lower rotating body 40 and a disc-shaped lower rotating disk body 41, a holder mounting seat 401 and a through holding opening 402 are provided on the outer wall of the lower rotating body 40, and the holder 6 is mounted on the holder mounting seat 401 by screws.
As shown in fig. 5, the sucker rod 7 has a long rod shape, and an external thread 71, an annular shoulder 72 and a tapered flange 74 are provided at the head of the sucker rod 7. A wrench 73 is provided between the shoulder 72 and the flange 74.
As shown in fig. 8 and 9, the positioning rod 11 comprises a first positioning rod 111, a first rod threaded head 112 is disposed at the head of the first positioning rod 111, an annular first positioning shoulder 113 is disposed at the middle of the first positioning rod 111, a hollow rod pipe 114 is disposed at the tail of the first positioning rod 111, and a pipe side hole 115 is disposed on the side wall of the rod pipe 114. The side hole 115 of the tube serves to facilitate the cleaning of crude oil.
The rod body pipe 114 is hexagonal, and the positioning rod 11 is convenient to assemble and disassemble.
The positioning rod 11 is connected with the coupling screw hole 81 of the coupling 8 by the first rod body screw head 112.
The outer diameter of the first positioning rod 111 is smaller than the inner diameter of the coupling 10, so that the positioning rod 11 can be inserted into the coupling 10, and the positioning rod 11 and the external thread of the sucker rod can be ensured not to coincide. The length of the locating rod 11 is equal to the length of the coupling minus the total length of the external thread of the sucker rod.
Of course, the external screw lengths of the sucker rods of different specifications are different, and thus the lengths of the positioning rods 11 are also different.
In fig. 8 and 9, the rod body pipe 114 at the rear of the positioning rod 11 has a hexagonal shape, and forms an inner hexagonal structure. Of course, the tail of the whole positioning rod 11 can also be a solid hexagonal prism to form an outer hexagonal structure. When the entire tail of the positioning rod 11 is a solid hexagonal prism, the previously mentioned tube side holes 115 are completely unnecessary.
The operation of the sucker rod elevator assembly 1 will now be described. Here, a sucker rod of one inch is taken as an example.
As shown in fig. 10, a collar 10 is attached to the top of the sucker rod 7, and when clamping the sucker rod, the sucker rod elevator 1 is lowered in the direction F1 until the top end surface 70 of the sucker rod 7 abuts the bottom end surface 117 of the positioning rod 11, as shown in fig. 6 and 7. At this time, the position of the clamping block 63 is just within the length range of the wrench side 73 of the sucker rod 7, the clamping cylinder 62 of the clamp holder 6 is retracted, so that the clamping block 63 passes through the clamping opening 402 and clamps the wrench side 73 of the sucker rod 7, if the opening of the clamping block 63 is not parallel to the plane of the wrench side 73, the clamping block cannot pass through the clamping opening 402, then the clamping cylinder 62 of the clamp holder 6 is extended first, the hydraulic motor 31 is rotated afterwards to drive the clamping block opening 402 to rotate by an angle relative to the wrench side of the sucker rod, and the clamping cylinder 62 of the clamp holder 6 is retracted again, so that the clamping block 63 passes through the clamping opening 402 until the sucker rod is successfully clamped.
When the top of the sucker rod 7 lacks a collar, as shown in FIG. 11, the sucker rod elevator 1 is lowered in direction F2 until the top end surface 70 of the sucker rod 7 abuts the bottom end surface 117 of the locating rod 11, as shown in FIG. 12. At this time, the gripping cylinder 62 of the gripper 6 is retracted, and the wrench side 73 of the sucker rod 7 is gripped. If the wrench side 73 of the sucker rod cannot be successfully clamped, the clamping cylinder 62 of the clamp holder 6 is extended first, the hydraulic motor 31 is rotated afterwards, the clamping block opening 402 is driven to rotate by an angle relative to the wrench side 73 of the sucker rod, and the clamping cylinder 62 of the clamp holder 6 is retracted again, so that the clamping block 63 passes through the clamping opening 402 until the sucker rod is successfully clamped.
The sucker rod elevator assembly of the utility model can accurately complete the positioning of the sucker rod 7 by utilizing the positioning function of the positioning rod 11 no matter whether the top of the sucker rod 7 is provided with a coupling or not, so that the wrench side 73 of the sucker rod 7 is correctly clamped by the clamp 6,
in addition, after the positioning rod 11 is additionally arranged, the main and back-ups only need to clamp the wrench side 73 of the sucker rod 7 at the upper part or the lower part of the coupling 10 no matter the hydraulic power tongs are buckled or unbuckled, the back-up tongs of the hydraulic power tongs do not need to clamp the coupling 10 any more, and only need to clamp the wrench side 73 of the sucker rod 7 below the coupling 10, so that the structure of the back-up tongs of the hydraulic power tongs is simplified.
In addition, through changing different locating rods 11, just can make the sucker rod 7 of same sucker rod elevator centre gripping different specifications, the commonality is strong.
As shown in fig. 13-18, another embodiment of the sucker rod elevator assembly is shown, in which the sucker rod 7S is six or seven-fold in size, and the positioning assembly M replaces the previous positioning rod 11.
The positioning assembly M comprises a positioning column 11S, an annular positioning plate 13 and a tubular positioning barrel 12.
The positioning post 11S comprises a second positioning post 11S1, a second post screw thread head 11S2 is provided at the head of the second positioning post 11S1, an annular second positioning shoulder 11S3 is provided at the middle of the second positioning post 11S1, and a six-prismatic post tail 11S4 is provided at the tail of the second positioning post 11S1, which facilitates the disassembly and assembly of the positioning post 11S.
The positioning plate 13 is sleeved on the second positioning rod 11S1, a positioning center hole 131 is formed in the center of the positioning plate 13, and an annular lining stand 132 is disposed on the bottom end surface of the positioning plate 13.
The positioning barrel 12 is located below the positioning plate 13, and the inner diameter of the positioning barrel 12 is matched with the outer diameter of the lining table 132. As shown in fig. 18, the liner 132 of the positioning plate 13 can be seated on top of the positioning tub 12.
In addition, a horn-shaped bung hole 121 is formed at the tail of the positioning barrel 12.
The operation of the sucker rod elevator assembly of this embodiment will now be described.
As shown in fig. 19, a coupling 10S is connected to the top of the sucker rod 7S, and when clamping the sucker rod, the sucker rod elevator 1 descends in the direction F3 until the top end surface of the sucker rod 7S abuts against the bottom end surface 11S7 of the positioning column 11S, as shown in fig. 20 and 21. At this time, the grip cylinder 62 of the gripper 6 is retracted, and then the grip block 63 passes through the grip opening 402 and grips the wrench side 73 of the sucker rod 7S. If the wrench side 73 of the sucker rod cannot be successfully clamped, the clamping cylinder 62 of the clamp holder 6 is extended first, the hydraulic motor 31 is rotated afterwards, the clamping block opening 402 is driven to rotate by an angle relative to the wrench side 73 of the sucker rod, and the clamping cylinder 62 of the clamp holder 6 is retracted again, so that the clamping block 63 passes through the clamping opening 402 until the sucker rod is successfully clamped.
When the top of the sucker rod 7S lacks the collar 10S as shown in FIG. 22, the same reason holds that the wrench side 73 of the sucker rod 7S can still be effectively clamped by the clamp 6, as shown in FIG. 23, and then the sucker rod 7S is successfully clamped.
It should be noted that, through changing different locating component M, just can make the sucker rod 7S of different specifications of same sucker rod elevator centre gripping, the commonality is strong.
Without being limited thereto, any changes or substitutions that are not contemplated by the inventors are intended to be included within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims (10)
1. A sucker rod elevator component comprises a tubular fixed shaft (2), an upper rotating body (3) and a lower rotating body (4) are arranged at the tail part of the fixed shaft (2), the lower rotating body (4) is connected with the upper rotating body (3) through a plurality of connecting screws (5),
the inner end of the fixed shaft (2) is provided with a driving motor (31), the top of the lower rotating body (4) is provided with a coupler (8), the driving motor (31) drives the coupler (8), the side wall of the lower rotating body (4) is provided with a detachable clamp holder (6), the device is characterized in that,
the center of the coupler (8) is provided with a through coupler screw hole (81), and the tail part of the coupler screw hole (81) is provided with a detachable positioning rod (11).
2. The sucker rod elevator assembly of claim 1 wherein,
the lower rotating body (4) comprises a cylindrical lower rotating cylinder body (40) and a disc-shaped lower rotating disc body (41), a clamp holder mounting seat (401) and a penetrating clamp opening (402) are arranged on the outer wall of the lower rotating cylinder body (40), and the clamp holder (6) is mounted on the clamp holder mounting seat (401) through screws.
3. The sucker rod elevator assembly of claim 1 wherein,
the bottom of the coupler (8) is provided with a disc-shaped coupler fixing disc (82), the coupler fixing disc (82) is provided with a plurality of coupler fixing disc holes (821), and the coupler fixing disc holes (821) are connected with the lower rotating body (4) through a plurality of coupler screws (9).
4. The sucker rod elevator assembly of claim 1 wherein,
the clamp holder (6) comprises a clamping base (61), an oil cylinder (62) is arranged on the clamping base (61), and a U-shaped clamping block (63) is arranged at the head of the oil cylinder (62).
5. The sucker rod elevator assembly of claim 1 wherein,
the positioning rod (11) comprises a first positioning rod body (111), a first rod body thread head (112) is arranged at the head of the first positioning rod body (111), an annular first positioning shoulder (113) is arranged in the middle of the first positioning rod body (111), a hollow rod body pipeline (114) is arranged at the tail of the first positioning rod body (111), the rod body pipeline (114) is hexagonal, and a pipe side hole (115) is formed in the side wall of the rod body pipeline (114).
6. The sucker rod elevator assembly of claim 1 wherein,
the positioning rod (11) comprises a first positioning rod body (111), a first rod body thread head (112) is arranged at the head of the first positioning rod body (111), an annular first positioning shoulder (113) is arranged at the middle part of the first positioning rod body (111), and a six-prismatic rod body tail column (11S 4) is arranged at the tail part of the first positioning rod body (111).
7. The sucker rod elevator assembly of claim 5 or 6 wherein,
the outer diameter of the first positioning rod body (111) is smaller than the inner diameter of the coupling (10).
8. The sucker rod elevator assembly of claim 1 wherein,
the sucker rod elevator assembly also comprises a positioning column (11S), the positioning column (11S) comprises a second positioning rod body (11S 1), a second rod body thread head (11S 2) is arranged at the head of the second positioning rod body (11S 1), an annular second positioning shoulder (11S 3) is arranged in the middle of the second positioning rod body (11S 1), a hexagonal prism-shaped rod body tail column (11S 4) is arranged at the tail of the second positioning rod body (11S 1), an annular positioning plate (13) is sleeved on the second positioning rod body (11S 1), a positioning center hole (131) is formed in the center of the positioning plate (13), an annular lining table (132) is arranged on the bottom end face of the positioning plate (13), a tubular positioning barrel (12) is arranged below the positioning plate (13), and the positioning column (11S), the positioning plate (13) and the positioning barrel (12) form a positioning assembly (M).
9. The sucker rod elevator assembly of claim 8 wherein,
the inner diameter of the positioning barrel (12) is matched with the outer diameter of the lining table (132).
10. The sucker rod elevator assembly of claim 8 wherein,
the tail part of the positioning barrel (12) is provided with a horn-shaped barrel opening (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321218438.8U CN220203825U (en) | 2023-05-19 | 2023-05-19 | Sucker rod elevator assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321218438.8U CN220203825U (en) | 2023-05-19 | 2023-05-19 | Sucker rod elevator assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220203825U true CN220203825U (en) | 2023-12-19 |
Family
ID=89139498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321218438.8U Active CN220203825U (en) | 2023-05-19 | 2023-05-19 | Sucker rod elevator assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220203825U (en) |
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2023
- 2023-05-19 CN CN202321218438.8U patent/CN220203825U/en active Active
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