CN216714323U - Multistage bushing for deep water well drilling machine - Google Patents
Multistage bushing for deep water well drilling machine Download PDFInfo
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- CN216714323U CN216714323U CN202123377763.2U CN202123377763U CN216714323U CN 216714323 U CN216714323 U CN 216714323U CN 202123377763 U CN202123377763 U CN 202123377763U CN 216714323 U CN216714323 U CN 216714323U
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Abstract
The utility model discloses a multistage bushing for a deepwater well drilling machine, which relates to the field of engineering machinery, and comprises: first-stage core supplement; the secondary complementary cores are fixedly arranged on the periphery of the primary complementary core in a bilateral symmetry manner; the fixing bolts are symmetrically arranged along the transverse and longitudinal center lines to fix the primary bushing at the secondary inner diameter; the third-stage bushing is fixedly arranged on the periphery of the second-stage bushing in a bilateral symmetry manner; and the positioning pin shafts are symmetrically arranged on the front side and the rear side of the three-stage bushing to prevent the axial movement of the multi-stage bushing. The drill rod assembly device solves the problems of long service life and high maintenance cost caused by large abrasion between the wear-resistant sleeve and the drill rod and only integral replacement in the drilling construction process by disassembling and assembling the bushing at different levels, and is flexibly assembled according to the drill rods with different apertures, so that the drill rod assembly device is more suitable for construction under various working conditions.
Description
Technical Field
The utility model relates to the field of engineering machinery, especially, relate to a deep water well is multistage benefit core for rig.
Background
The core is a key part of a deep well drilling machine, and has the following main functions: the drilling method has the advantages that firstly, the drilling method has good drill rod guiding performance in the drilling process, and the drilling precision is guaranteed; and secondly, after the drilling of the hole is finished, the drilling rod has a good guiding effect on the casing pipe setting construction of the drilling rod.
However, the applicant researches and discovers that the following problems exist in the construction process of the conventional deep well drilling machine:
1. at present, the integral type core supplement is adopted in China, and the requirement of micro-adjustment of the core supplement on the horizontal position cannot be met.
2. The requirements of different opening diameters in the casing construction process cannot be met.
3. Meanwhile, in the drilling construction process, the abrasion between the wear-resistant sleeve and the drill rod is large, and the wear-resistant sleeve and the drill rod can only be integrally replaced, so that the problems of short service life and high maintenance cost are caused.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the defects in the prior art, the utility model provides a multistage bushing for a deep water well drilling machine, wherein during construction and assembly, a second-stage bushing and a third-stage bushing are limited and fixed through a positioning pin shaft in a locking mechanism, and a first group of pin holes and a second group of pin holes are fixed through a fixing bolt in a screwed mode, so that the first-stage bushing and the second-stage bushing are fixedly connected; the coaming at the bottom of the third-stage complementary core is fixedly connected with the base through a plurality of limiting lugs, so that the detachable connection relation among the first-stage complementary core, the second-stage complementary core and the third-stage complementary core is realized; the horizontal installation position of changing or adjusting the benefit core can be dismantled according to the footpath length of drilling rod or the required horizontal position of drilling rod in the different operating mode use to and in time change one-level benefit core in long-term use, reduce the whole loss cost of benefit core, avoid influencing drilling rod construction precision.
The technical scheme is as follows: in a first aspect, the present invention provides a multi-stage bushing for a deep well drilling machine, comprising:
first-stage core supplement;
the secondary complementary core is symmetrically and fixedly arranged on the outer diameter of the primary complementary core;
the third-stage complementary cores are symmetrically arranged on one side surface of the outer diameter of the second-stage complementary core;
the first-stage bushing is fixedly connected with the second-stage bushing through a plurality of connecting pieces;
and a connecting locking mechanism is fixedly mounted at the top of the third-stage bushing, and the second-stage bushing is locked by the locking mechanism, so that the second-stage bushing is limited and prevented from moving forwards and backwards.
In a further embodiment, a first pin hole group is symmetrically arranged on one side surface of the primary bushing; a second pin hole group matched with the first pin hole group is formed in the inner diameter surface of the secondary bushing; the connecting pieces are a plurality of bolt assemblies which are used for fixing the first group of pin hole groups and the second group of pin hole groups in a threaded manner, so that the first-stage complementary core is fixedly connected with the second-stage complementary core.
In a further embodiment, the bottom of the third-stage bushing is radially connected with a coaming, and a plurality of limiting lugs are fixedly connected to the periphery of the coaming.
In a further embodiment, the locking mechanism comprises: four connecting lug plates which are symmetrically arranged at the top of the three-stage bushing core and provided with connecting holes and two positioning pin shafts which respectively penetrate through the two connecting holes are symmetrically arranged, so that the relative distance between the three-stage bushing core which is symmetrically arranged and the connecting lug plates is gradually reduced, and finally the three-stage bushing core which is symmetrically arranged and the two-stage bushing core are butted to be fixed to realize that the three-stage bushing core is limited to lock the two-stage bushing core.
In a further embodiment, the inner diameter and the outer diameter of the secondary bushing are respectively provided with a first groove and a second groove, and the second group of pin holes are formed in the first groove.
In a further embodiment, the primary patch core comprises: the wear-resisting sleeve and the first lug ring radially extend outwards from the top end of the wear-resisting sleeve and are matched with the first groove; when the first convex block ring is completely attached to the first groove, a concave-convex embedded structure which is tightly matched with the first-stage complementary core and the second-stage complementary core is formed.
In a further embodiment, a second convex block ring matched with the second groove is arranged on the inner diameter of the third-stage complementary core; when the second convex block ring is completely attached to the second groove, a concave-convex embedded structure which is tightly matched with the second-level complementary core and the third-level complementary core is formed.
In a further embodiment, the enclosing plate of the three-stage bushing is fixedly connected with the base through a fixing bolt, the base is clamped with a plurality of limiting lugs arranged around, so that the limitation in four directions is realized on the same horizontal position, the symmetrical three-stage bushing realizes the limitation of integral connection with the two-stage bushing and the one-stage bushing which are tightly matched through a positioning pin shaft, and in the process that the multi-stage bushing moves integrally along with the drill rod, the drill rod and the drilling of the power head connected with the drill rod are accurately guided.
In a further embodiment, the inner diameter of the first-stage core bushing abuts against the drill rod during construction.
Has the advantages that: compared with the prior art, the utility model has the following advantages:
during construction and assembly, the secondary bushing and the tertiary bushing are limited and fixed through a positioning pin shaft in the locking mechanism, and the first group of pin holes and the second group of pin holes are fixed through fixing bolts in a screwed mode, so that the primary bushing and the secondary bushing are fixedly connected; the coaming at the bottom of the third-stage complementary core is fixedly connected with the base through a plurality of limiting lugs, so that the detachable connection relationship among the first-stage complementary core, the second-stage complementary core and the third-stage complementary core is realized; the horizontal installation position of changing or adjusting the benefit core can be dismantled according to the footpath length of drilling rod or the required horizontal position of drilling rod in the different operating mode use to and in time change one-level benefit core in long-term use, reduce the whole loss cost of benefit core, avoid influencing drilling rod construction precision.
Drawings
FIG. 1 is a schematic diagram of a multi-stage patch core structure according to some embodiments of the present disclosure;
fig. 2 is a cross-sectional view of a multi-stage patch core according to some embodiments of the present disclosure.
Reference numerals: the three-level bushing comprises a three-level bushing 1, a coaming 10, a limiting bump 11, a two-level bushing 2, a second group of pin holes 20, a first groove 21, a second groove 22, a first-level bushing 3, a first group of pin holes 30, a wear-resistant sleeve 31, a first bump ring 32, a fixing bolt 4, a locking mechanism 5, a connecting lug plate 50 and a positioning pin 51.
Detailed Description
In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the following specific embodiments, but not limited thereto.
The applicant researches and discovers that: the related deep well drilling machine has the following problems in the construction process: at present, the integral type core supplement is adopted in China, and the requirement of micro-adjustment of the core supplement on the horizontal position cannot be met.
The requirements of different opening diameters in the casing construction process cannot be met.
Meanwhile, in the drilling construction process, the abrasion between the wear-resistant sleeve and the drill rod is large, and the wear-resistant sleeve and the drill rod can only be integrally replaced, so that the problems of short service life and high maintenance cost are caused.
Further, referring to fig. 1 to 2, a multi-stage bushing disclosed in the present invention is further described, which includes: a third-stage complementary core 1, a second-stage complementary core 2 and a first-stage complementary core 3;
wherein, the first-stage bushing 3 is arranged in bilateral symmetry and a first group of pin holes 30 are arranged on one side surface of the top part;
the secondary complementary core 2 is fixedly arranged on the outer diameter of the primary complementary core 3 in a bilateral symmetry manner, and a second group of pin holes 20 matched with the first group of pin holes 30 are formed in one side surface of the inner diameter;
the three-stage complementary cores 1 are arranged on one side surface of the outer diameter of the two-stage complementary core 2 in a bilateral symmetry manner; the first group of pin holes 30 and the second group of pin holes 20 are fixed in a screwed mode through fixing bolts 4, and therefore the first-stage complementary core 3 and the second-stage complementary core 2 are fixedly connected;
the top of the three-stage bushing 1 is fixedly provided with a connecting locking mechanism 5, and the two-stage bushing 2 is locked by the locking mechanism 5, so that the two-stage bushing 2 is limited, and the front and back movement is prevented.
The bottom of the three-stage bushing 1 is radially connected with a coaming 10, and the periphery of the coaming 10 is fixedly connected with a plurality of limiting lugs 11; the coaming 10 of the three-stage bushing 1 is fixedly connected with the base through a fixing bolt 4, the base is clamped with a plurality of limiting lugs 11 arranged around, and then limiting in four directions is realized on the same horizontal position, the symmetrical three-stage bushing 1 realizes limiting of integral connection with the two-stage bushing 2 and the one-stage bushing 3 which are closely matched through a positioning pin shaft 51, and accurate guiding is carried out on drilling rods and drilling of power heads connected with the drilling rods in the process that the multi-stage bushing moves along with the drilling rods.
The lock mechanism 5 includes: a connecting lug plate 50 and a positioning pin shaft 51;
the connecting lug plates 50 are four connecting holes symmetrically arranged on the top of the three-stage bushing 1, and the positioning pin shafts 51 are two connecting holes which penetrate through the two coincided connecting holes respectively;
in the fixing process of the positioning pin shaft 51 and the connecting lug plate 50 through nuts or other fasteners, the relative distance between the symmetrically arranged three-stage complementary cores 1 is gradually reduced, and finally the symmetrically arranged three-stage complementary cores 1 are abutted and fixed with the two-stage complementary cores 2 to realize the locking limit of the three-stage complementary cores 1 to the two-stage complementary cores 2.
The inner diameter and the outer diameter of the secondary bushing 2 are respectively provided with a first groove 21 and a second groove 22, and the second group of pin holes 20 are arranged on the first groove 21;
further, the primary patch core 3 includes: wear-resistant sleeve 31, and first cam ring 32
The wear-resistant sleeve 31 and the first bump ring 32 are connected in an integrated manner or in a welding manner, and the like, but are not limited herein; the first lug ring 32 extends radially outwards from the top end of the wear-resistant sleeve 31 and is matched with the first groove 21;
when the first bump ring 32 is completely attached to the first groove 21, a concave-convex embedding structure which is tightly matched with the first-stage complementary core 3 and the second-stage complementary core 2 is formed.
Further, a second convex block ring matched with the second groove 22 is arranged on the inner diameter of the third-stage complementary core 1;
when the second convex ring is completely attached to the second groove 22, a concave-convex embedding structure which is tightly matched with the second-stage complementary core 2 and the third-stage complementary core 1 is formed.
Furthermore, the inner diameter of the first-stage bushing 3 is abutted against the drill rod during construction; so that the fixedly connected multi-stage bushing moves integrally with the drill rod.
The working principle is as follows:
the coaming 10 of the third-stage complementary core 1 is fixedly connected with the base through the fixing bolt 4, the base is also clamped with a plurality of limiting lugs 11 arranged around, so that the limiting in four directions is realized on the same horizontal position, and when the second lug ring is completely attached to the second groove 22, a concave-convex embedded structure which is tightly matched is formed between the second-stage complementary core 2 and the third-stage complementary core 1; when the first bump ring 32 is completely attached to the first groove 21, the first-stage complementary core 3 and the second-stage complementary core 2 are fixedly connected through the fixing bolt 4; the symmetrical three-stage bushing 1 realizes the limit of integral connection with the second-stage bushing 2 and the first-stage bushing 3 which are tightly matched through a positioning pin shaft 51, and accurately guides the drilling of a drill rod and a power head connected with the drill rod in the process that the multi-stage bushing moves integrally along with the drill rod; if the drill rods with different specifications need to be replaced for construction, only the first-stage supplement core 3 needs to be detached from the second-stage supplement core 2; in the same way, the second-stage core compensating 2 is taken down from the third-stage core compensating 1, so that the construction of a larger-size drill rod can be adapted; if the first-stage supplement core 3 is worn and needs to be replaced, the first-stage supplement core 3 is detached from the second-stage supplement core 2, and a new first-stage supplement core 3 is replaced.
Has the advantages that: compared with the prior art, the utility model has the following advantages:
during construction and assembly, the second-stage supplement core 2 and the third-stage supplement core 1 are limited and fixed through a positioning pin shaft 51 in a locking mechanism 5, and the first group of pin holes 30 and the second group of pin holes 20 are fixed through a fixing bolt 4 in a screwed mode, so that the first-stage supplement core 3 and the second-stage supplement core 2 are fixedly connected; a coaming plate 10 at the bottom of the third-stage complementary core 1 is fixedly connected with the base through a plurality of limiting lugs 11, so that the detachable connection relation among the first-stage complementary core 3, the second-stage complementary core 2 and the third-stage complementary core 1 is realized; the horizontal installation position of changing or adjusting the benefit core can be dismantled according to the footpath length of drilling rod or the required horizontal position of drilling rod in the different operating mode use to and in time change one-level benefit core 3 in long-term use, reduce the whole loss cost of benefit core, avoid influencing drilling rod construction precision.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a core is mended with multistage to deep water well drilling machine which characterized in that includes:
first-stage core supplement;
the secondary complementary core is symmetrically and fixedly arranged on the outer diameter of the primary complementary core;
the third-stage complementary cores are symmetrically arranged on one side surface of the outer diameter of the second-stage complementary core;
the first-stage bushing is fixedly connected with the second-stage bushing through a plurality of connecting pieces;
and a connecting locking mechanism is fixedly mounted at the top of the third-stage bushing, and the second-stage bushing is locked by the locking mechanism so as to limit the second-stage bushing.
2. The multistage bushing for the deep well drilling machine according to claim 1, wherein a first pin hole group is symmetrically formed in one side surface of the first-stage bushing; a second pin hole group matched with the first pin hole group is formed in the inner diameter surface of the secondary bushing; the connecting pieces are a plurality of bolt assemblies which are used for fixing the first group of pin hole groups and the second group of pin hole groups in a threaded manner, so that the first-stage complementary core is fixedly connected with the second-stage complementary core.
3. The multistage bushing for the deep well drilling machine according to claim 1, wherein a coaming is radially connected to the bottom of the three-stage bushing, and a plurality of limiting lugs are fixedly connected to the periphery of the coaming.
4. The multi-stage bushing of claim 1, wherein the locking mechanism comprises: four connecting lug plates which are symmetrically arranged on the top of the three-stage bushing and are provided with connecting holes, and two positioning pin shafts which respectively penetrate through the two connecting holes.
5. The multistage bushing for the deep water well drilling machine according to claim 2, wherein the second stage bushing has an inner diameter and an outer diameter, and is provided with a first groove and a second groove, respectively, and the second group of pin holes are formed in the first groove.
6. The multistage bushing for a deepwater well drilling machine as claimed in claim 1 or 4, wherein the multistage bushing comprises: the wear-resisting sleeve and the first lug ring radially extend outwards from the top end of the wear-resisting sleeve and are matched with the first groove; when the first convex block ring is completely attached to the first groove, a concave-convex embedded structure which is tightly matched with the first-stage complementary core and the second-stage complementary core is formed.
7. The multistage bushing for the deepwater well drilling machine as claimed in claim 1, wherein a second bump ring matched with the second groove is arranged on the inner diameter of the three-stage bushing; when the second convex block ring is completely attached to the second groove, a concave-convex embedded structure which is tightly matched with the second-level complementary core and the third-level complementary core is formed.
8. The multistage bushing for the deep water well drilling machine as claimed in claim 3, wherein the coaming of the three-stage bushing is further fixedly connected with a base through a fixing bolt, and the base is further clamped with a plurality of limiting lugs arranged on the periphery, so that the limiting in four directions is realized on the same horizontal position.
9. The multi-stage bushing of claim 1, wherein the inner diameter of the first stage bushing abuts against the drill pipe during construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123377763.2U CN216714323U (en) | 2021-12-29 | 2021-12-29 | Multistage bushing for deep water well drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123377763.2U CN216714323U (en) | 2021-12-29 | 2021-12-29 | Multistage bushing for deep water well drilling machine |
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| Publication Number | Publication Date |
|---|---|
| CN216714323U true CN216714323U (en) | 2022-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123377763.2U Active CN216714323U (en) | 2021-12-29 | 2021-12-29 | Multistage bushing for deep water well drilling machine |
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| Country | Link |
|---|---|
| CN (1) | CN216714323U (en) |
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2021
- 2021-12-29 CN CN202123377763.2U patent/CN216714323U/en active Active
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