CN111379530A - Rotary drilling rig elevator with built-in gas transmission channel - Google Patents
Rotary drilling rig elevator with built-in gas transmission channel Download PDFInfo
- Publication number
- CN111379530A CN111379530A CN202010396528.0A CN202010396528A CN111379530A CN 111379530 A CN111379530 A CN 111379530A CN 202010396528 A CN202010396528 A CN 202010396528A CN 111379530 A CN111379530 A CN 111379530A
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- Prior art keywords
- connector
- gas
- channel
- connecting body
- joint
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/087—Joints with radial fluid passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
- F16L39/06—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies of the multiline swivel type, e.g. comprising a plurality of axially mounted modules
Abstract
The invention discloses a rotary drilling rig elevator with a built-in gas transmission channel, and belongs to the technical field of rotary drilling rigs. The invention comprises an upper connecting body, a middle connecting body and a lower connecting body, wherein the upper connecting body is provided with a plate body, the shoulder parts on one side or two sides of an ear plate body are connected with a gas joint, and the inside of the upper connecting body is provided with an upper section of a gas channel communicated with the gas joint; the lower end of the upper connector is fixedly connected with a threaded joint and a middle connector, a column core of the lower connector extends into the lower part of the middle connector and is connected to the inside of the upper connector, an inner nut is arranged on the upper part of the column core of the lower connector, a bearing assembly is arranged between the lower connector and the middle connector below the inner nut, a dynamic seal is formed between the sealing joint part of the lower connector and the upper connector, a gas channel lower section which is axially communicated is arranged in the middle of the inside of the lower connector, and the gas channel lower section is in butt joint with the gas channel upper section and is communicated to form a gas transmission channel. The invention can realize the load transfer under the relative rotation working condition and can also realize the transmission of high-pressure gas.
Description
Technical Field
The invention relates to an elevator of a rotary drilling rig, and belongs to the technical field of rotary drilling rigs.
Background
The existing conventional elevator structure of the rotary drilling rig is shown in the attached figure 5 of the specification, the upper end of the elevator is provided with a groove and is connected with a main hoisting steel wire rope of the drilling rig through a pin shaft, and the lower end of the elevator is provided with a groove and is connected with a drill rod through a pin shaft. One function of the elevator is to transmit the lifting force of the steel wire rope, and the rotary drilling rod and the drill bit are driven to lift and lower along with the winding and unwinding of the main hoisting steel wire rope; the other function is to isolate the rotation of the drill rod during operation, namely the elevator bears the torsional force of the drill rod when the power head rotates to operate and the drill bit drills and throws earth, and the elevator removes the torsional stress transmission of the steel wire rope generated by the rotation of the drill rod and the like through the rotation of the elevator per se, so that the steel wire rope is prevented from being twisted, coiled, broken and the like due to the torsion.
At present, the elevator of the rotary drilling rig can only solve the load transmission under the relative rotation working condition, but more and more projects need the drilling tools of the rotary drilling rig to perform the additional action of power drive besides the rotary digging, so as to better adapt to the harsh geological conditions to perform effective hole forming operation. In the prior art, a small-aperture channel can be built in part of the elevator, but the transmission of partial small-flow hydraulic power can be realized only reluctantly, and the transmission of large-flow high-pressure gas cannot be solved.
Therefore, the invention is urgently needed to provide the elevator which is internally provided with the large-aperture channel and realizes the transmission of the high-pressure gas pipeline, so that the load transmission under the working condition of relative rotation can be realized, and the transmission of the high-pressure gas can also be realized.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the rotary drilling rig elevator with the built-in gas transmission channel, which can realize load transmission under the relative rotation working condition and can realize the transmission of high-pressure gas.
The invention is realized by the following technical scheme: a rotary drilling rig elevator with a built-in gas transmission channel comprises an upper connection body, a middle connection body and a lower connection body, wherein a flat lug plate body is arranged in the middle of the upper end of the upper connection body, the lug plate body is hinged with a steel wire rope connection body used for connecting a steel wire rope, shoulders are formed at the upper ends of the upper connection body on two sides of the lug plate body, a gas joint is connected to the shoulder on one side or two sides of the lug plate body, and the upper section of the gas channel communicated with the gas joint is manufactured in the upper connection body; the lower end of the upper connector is provided with a threaded joint fixedly connected with the threads of the middle connector, a column core of the lower connector extends into the lower part of the middle connector and is connected into the upper connector, the outer wall of the upper part of the column core of the lower connector is provided with a threaded connecting part, the threaded connecting part is provided with an inner nut, a bearing assembly is arranged in a radial space between the middle connector and the lower connector below the inner nut, the upper end of the lower connector is provided with a sealing joint part which extends into the upper connector beyond the inner nut and forms dynamic seal with the upper connector, the middle part in the lower connector is provided with a lower gas channel segment which is axially communicated, and the lower gas channel segment is in butt joint with the upper segment of the gas channel and is communicated to form a gas transmission channel; static seal is formed between the contact surfaces of the middle connector and the upper connector, and dynamic seal is formed between the middle connector and the lower connector.
As an improvement, the lower part of the lower connector is provided with an annular groove, a semi-annular drill rod check ring I and a drill rod check ring II are clamped in the annular groove, and the drill rod check ring I and the drill rod check ring II are fixed into a whole annular drill rod check ring through screws.
Furthermore, the bearing assembly comprises a thrust bearing, a bearing retainer ring and a ball bearing which are sequentially arranged from top to bottom.
As an improvement, a wear-resistant sleeve is arranged between the lower end of the middle connector and the lower connector, and a rotary oil seal is arranged outside the wear-resistant sleeve.
As an improvement, a plurality of lip-shaped sealing rings are arranged between the sealing joint part of the lower connector and the inner part of the upper connector, at least one lip-shaped sealing ring is opened towards the upper section of the gas channel, and the opening of one lip-shaped sealing ring is opened towards the cavity where the bearing assembly is arranged.
Furthermore, the lip-shaped sealing rings have three paths, wherein two openings of the lip-shaped sealing rings face the upper section of the gas channel, and one opening of the lip-shaped sealing ring faces the cavity where the bearing assembly is located.
Furthermore, an oil cup communicated with the cavity where the bearing assembly is located is radially arranged on the inner wall of the lower portion of the upper connecting body, and an oil filling plug is arranged on the oil cup.
As an improvement, an axial rotary anti-back screw is arranged at the joint of the inner nut and the upper end surface of the threaded connecting part, and a radial threaded anti-back screw is arranged at the threaded joint of the upper connecting body and the middle connecting body.
Further, the gas channel upper section comprises an axial side channel communicated with the gas joint, an axial center channel communicated with the gas channel lower section, and a radial channel communicated with the axial side channel and the axial center channel.
Furthermore, the radial channel is provided with a process hole on the outer wall of the upper connecting body, and a process hole plug is arranged on the process hole.
The invention has the beneficial effects that: according to the invention, the slotting is changed into the lug plate body with the flat upper end of the upper connecting body to form a shoulder with a larger area, a loose installation space is provided for the gas pipe and the gas joint, the lower section of the gas channel in the upper connecting body and the lower connecting body is in butt joint with the upper section of the gas channel to form a gas transmission channel, so that not only can the load transmission under the relative rotation working condition be realized, but also the synchronous transmission of high-pressure gas can be realized, the drilling tool of the rotary drilling rig can work, and meanwhile, the pipeline of the high-pressure gas does not rotate relatively, thereby avoiding the damage of the pipeline caused by the winding. The invention can provide high-pressure gas to drive additional actions besides the rotary digging function of the drilling tool of the rotary drilling rig, so as to better adapt to harsh geological conditions and carry out effective hole forming operation. The invention is particularly suitable for the construction condition that the down-the-hole hammer is applied to the rotary drilling rig.
Drawings
The invention is further illustrated below with reference to the figures and examples.
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is an enlarged view of the upper region of the gas passageway of the present invention;
FIG. 4 is an enlarged view of the area of the lip seal arrangement of the present invention;
fig. 5 is a schematic diagram of a prior art structure.
In the figure, 1, a steel wire rope connecting body, 2, an upper connecting body, 2-1, an ear plate body, 2-2, a shoulder part, 2-3, a threaded joint, 3, a gas joint, 4, a technical hole plug, 5, a middle connecting body, 6, a lower connecting body, 6-1, a sealing joint part, 6-2, a threaded connecting part, 7, a drill rod check ring I, 8, an inner hexagon screw, 9, a drill rod check ring II, 10, an oil plug, 11, an upper section of a gas channel, 11-1, an axial side channel, 11-2, a radial channel, 11-3, an axial central channel, 12, a lower section of the gas channel, 13, a lip-shaped sealing ring, 14, a rotary anti-withdrawal screw, 15, an oil cup, 16, an inner nut, 17, an O-shaped sealing ring, 18, a thrust bearing, 19, a bearing check ring, 20, a ball bearing, 21, a wear-resistant sleeve, 22, a rotary oil seal, 23, 24. annular groove, 25, screw thread anti-back screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail but are intended to be part of the specification as appropriate.
The rotary drilling rig elevator with the built-in gas transmission channel shown in fig. 1-4 comprises an upper connecting body 2, a middle connecting body 5 and a lower connecting body 6, wherein a flat lug body 2-1 is arranged in the middle of the upper end of the upper connecting body 2, the lug body 2-1 is hinged with a steel wire rope connecting body 1 for connecting a steel wire rope, shoulders 2-2 are formed at the upper ends of the upper connecting body 2 at two sides of the lug body 2-1, a gas connector 3 is connected to the shoulders 2-2 at one side or two sides of the lug body 2-1, and a gas channel upper section 11 communicated with the gas connector 3 is manufactured inside the upper connecting body 2; the lower end of the upper connector 2 is provided with a threaded joint 2-3 which is fixedly connected with the middle connector 5 through threads, the column core of the lower connector 6 extends into and is connected with the inner part of the upper connector 2 from the lower part of the middle connector 5, the outer wall of the upper part of the column core of the lower connector 6 is provided with a threaded connection part 6-2, the threaded connection part 6-2 is provided with an inner nut 16, a bearing assembly is arranged in a radial space between the middle connector 5 and the lower connector 6 below the inner nut 16, the upper end of the lower connector 6 is provided with a sealing joint part 6-1 which exceeds the inner nut 16 and extends into the upper connector 2 to form dynamic sealing with the upper connector 2, the middle part of the inner part of the lower connector 6 is provided with an axially through gas channel lower section 12, and the gas channel lower section 12 is in butt joint with the gas channel upper section 11 to form a gas; static seal is formed between the contact surfaces of the middle connector 5 and the upper connector 2, and dynamic seal is formed between the middle connector 5 and the lower connector 6.
As an improvement, an annular groove 24 is formed in the lower portion of the lower connecting body 6, a semi-annular drill rod check ring I7 and a drill rod check ring II 9 are clamped in the annular groove 24, and the drill rod check ring I7 and the drill rod check ring II 9 are fixed into a whole annular drill rod check ring through an inner hexagonal screw 8.
Further, as shown in fig. 2, the bearing assembly includes a thrust bearing 18, a retainer ring 19, and a ball bearing 20, which are arranged in this order from top to bottom.
As a modification, a wear-resistant sleeve 21 is arranged between the lower end of the middle connector 5 and the lower connector 6, and a rotary oil seal 22 is arranged outside the wear-resistant sleeve 21.
As an improvement, a plurality of lip-shaped sealing rings 13 are arranged between the sealing joint part 6-1 of the lower connector 6 and the interior of the upper connector 2, at least one lip-shaped sealing ring 13 is opened towards the upper section 11 of the gas channel, and one lip-shaped sealing ring 13 is opened towards the cavity where the bearing assembly is arranged.
Further, as shown in fig. 3, there are three lip-shaped sealing rings 13, wherein two lip-shaped sealing rings 13 open to the upper section 11 of the gas passage to prevent high-pressure gas from entering the bearing cavity of the adapter body and damaging the lubrication of the bearing; the opening of the lip-shaped sealing ring 13 faces to the cavity of the bearing assembly, so that lubricating grease in the cavity is prevented from entering the air channel and polluting high-pressure gas.
Further, an oil cup 15 communicated with the cavity where the bearing assembly is arranged is radially arranged on the inner wall of the lower portion of the upper connecting body 2, and an oil filling plug 10 is arranged on the oil cup 15.
As an improvement, an axial rotary anti-back screw 14 is arranged at the joint of the inner nut 16 and the upper end surface of the threaded connecting part 6-2, and a radial threaded anti-back screw 25 is arranged at the threaded connecting part of the threaded joint 2-3 of the upper connecting body 2 and the middle connecting body 5.
Further, as shown in FIG. 4, the gas channel upper section 11 includes an axial side channel 11-1 communicating with the gas joint 3, an axial center channel 11-3 communicating with the gas channel lower section 12, and a radial channel 11-2 communicating the axial side channel 11-1 with the axial center channel 11-3.
Furthermore, a process hole is reserved on the outer wall of the upper connecting body 2 of the radial channel 11-2, and a process hole plug 4 is arranged on the process hole and sealed by welding.
Specifically, the steel wire rope connecting body 1 is used for being connected with a heart ring of a main winding steel wire rope through a pin shaft, and the lower end of the steel wire rope connecting body 1 is connected with an ear plate body 2-1 of the connecting body 2 through the pin shaft. The lower connecting body 6 and the drill rod square head are connected into a whole in a welding mode, the connection of the middle connecting body and the lower connecting body and the pre-tightening of corresponding bearings are realized through the threaded connection of an inner nut 16 and the like, the inner nut 16 fixes the corresponding bearings and is synchronous with the inner ring of the corresponding bearings, and the inner nut is prevented from loosening by a rotary anti-withdrawal screw 14. The middle connector 5 and the upper connector 2 are connected in a synchronous manner through threads, and are prevented from loosening through a thread anti-back screw 25. The invention realizes the relative rotation of the upper connector 2 and the lower connector 6 by means of the rotation between the outer ring and the inner ring of the bearing. Lubrication of the bearing assembly is achieved by unscrewing the filler plug 10 and pumping oil with an oil gun. Because the elevator can work as deep as 100 meters, the lower connector 6 and the middle connector 5 are dynamically sealed by a rotary oil seal 22 and fixed by a hole spring retainer 23. The upper connector 2 and the middle connector 5 are statically sealed by an O-shaped sealing ring 17.
The core of the invention is to disclose a large-drift-diameter high-pressure gas one-way transmission elevator, which can realize load transmission under the working condition of relative rotation and synchronous transmission of high-pressure gas, ensure that a drilling tool of a rotary drilling rig works and a pipeline of the high-pressure gas does not rotate relatively, and further avoid the damage of the pipeline caused by winding of the pipeline and a steel wire rope due to rotation. The invention can provide high-pressure gas to drive additional actions besides the rotary digging function of the drilling tool of the rotary drilling rig, so as to better adapt to harsh geological conditions and carry out effective hole forming operation. The invention is particularly suitable for the construction condition that the down-the-hole hammer is applied to the rotary drilling rig.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a built-in gas transmission channel's rotary drilling rig elevator, includes and connects body (2), well body (5) and lower body (6), its characterized in that: a flat ear plate body (2-1) is arranged in the middle of the upper end of the upper connecting body (2), the ear plate body (2-1) is hinged with a steel wire rope connecting body (1) for connecting a steel wire rope, shoulders (2-2) are formed at the upper ends of the upper connecting body (2) on two sides of the ear plate body (2-1), a gas joint (3) is connected on the shoulders (2-2) on one side or two sides of the ear plate body (2-1), and a gas channel upper section (11) communicated with the gas joint (3) is manufactured in the upper connecting body (2); the lower end of the upper connector (2) is provided with a threaded joint (2-3) which is fixedly connected with the middle connector (5) through threads, the column core of the lower connector (6) extends into and is connected to the interior of the upper connector (2) from the lower part of the middle connector (5), the outer wall of the upper part of the column core of the lower connector (6) is provided with a threaded connecting part (6-2), the threaded connecting part (6-2) is provided with an inner nut (16), a bearing assembly is arranged in a radial space between the middle connector (5) and the lower connector (6) below the inner nut (16), the upper end of the lower connecting body (6) is provided with a sealing joint part (6-1) which exceeds the inner nut (16) and extends into the upper connecting body (2) to form dynamic sealing with the upper connecting body (2), the middle inside the lower connecting body (6) is provided with an axially through gas channel lower section (12), and the gas channel lower section (12) is in butt joint with the gas channel upper section (11) and communicated with the gas channel upper section to form a gas transmission channel; static seal is formed between the contact surfaces of the middle connector (5) and the upper connector (2), and dynamic seal is formed between the middle connector (5) and the lower connector (6).
2. The rotary drilling rig elevator with the built-in gas transmission channel as claimed in claim 1, wherein: lower connector (6) lower part preparation has annular (24), and semi-annular drilling rod retaining ring I (7) and drilling rod retaining ring II (9) are equipped with to annular (24) inside the card, pass through the screw fixation between drilling rod retaining ring I (7) and drilling rod retaining ring II (9) and become a whole annular drilling rod retaining ring.
3. The rotary drilling rig elevator with the built-in gas transmission channel as claimed in claim 1, wherein: the bearing assembly comprises a thrust bearing (18), a bearing retainer ring (19) and a ball bearing (20) which are sequentially arranged from top to bottom.
4. The rotary drilling rig elevator with the built-in gas transmission channel as claimed in claim 1, wherein: and a wear-resistant sleeve (21) is arranged between the lower end of the middle connector (5) and the lower connector (6), and a rotary oil seal (22) is arranged outside the wear-resistant sleeve (21).
5. The rotary drilling rig elevator with the built-in gas transmission channel as claimed in claim 1, wherein: a plurality of lip-shaped sealing rings (13) are arranged between the sealing joint part (6-1) of the lower connector (6) and the inner part of the upper connector (2), and at least one lip-shaped sealing ring (13) is opened towards the upper section (11) of the gas channel and one lip-shaped sealing ring (13) is opened towards the cavity where the bearing assembly is located.
6. The rotary drilling rig elevator with the built-in gas transmission channel as claimed in claim 5, wherein: the lip-shaped sealing rings (13) are provided with three paths, wherein two lip-shaped sealing rings (13) are opened towards the upper section (11) of the gas channel, and one lip-shaped sealing ring (13) is opened towards the cavity where the bearing assembly is arranged.
7. The rotary drilling rig elevator with the built-in gas transmission channel as claimed in claim 1, wherein: an oil cup (15) communicated with the cavity where the bearing assembly is located is radially arranged on the inner wall of the lower portion of the upper connecting body (2), and an oil filling plug (10) is arranged on the oil cup (15).
8. The rotary drilling rig elevator with the built-in gas transmission channel as claimed in claim 1, wherein: an axial rotary anti-back screw (14) is arranged at the joint of the inner nut (16) and the upper end surface of the threaded connecting part (6-2), and a radial threaded anti-back screw (25) is arranged at the threaded joint of the threaded joint (2-3) of the upper connecting body (2) and the middle connecting body (5).
9. The rotary drilling rig elevator with the built-in gas transmission channel as claimed in claim 1, wherein: the gas channel upper section (11) comprises an axial side channel (11-1) communicated with the gas joint (3), an axial central channel (11-3) communicated with the gas channel lower section (12), and a radial channel (11-2) communicated with the axial side channel (11-1) and the axial central channel (11-3).
10. The rotary drilling rig elevator with the built-in gas transmission channel as claimed in claim 9, wherein: the radial channel (11-2) is provided with a process hole on the outer wall of the upper connecting body (2), and a process hole plug (4) is arranged on the process hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010396528.0A CN111379530A (en) | 2020-05-12 | 2020-05-12 | Rotary drilling rig elevator with built-in gas transmission channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010396528.0A CN111379530A (en) | 2020-05-12 | 2020-05-12 | Rotary drilling rig elevator with built-in gas transmission channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111379530A true CN111379530A (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010396528.0A Pending CN111379530A (en) | 2020-05-12 | 2020-05-12 | Rotary drilling rig elevator with built-in gas transmission channel |
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| Country | Link |
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| CN (1) | CN111379530A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443283A (en) * | 2020-11-13 | 2021-03-05 | 中国人民解放军陆军工程大学 | Continuous slurry (gas) supply type elevator |
| CN114135237A (en) * | 2021-11-22 | 2022-03-04 | 山东力强机械有限责任公司 | Multifunctional elevator |
-
2020
- 2020-05-12 CN CN202010396528.0A patent/CN111379530A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443283A (en) * | 2020-11-13 | 2021-03-05 | 中国人民解放军陆军工程大学 | Continuous slurry (gas) supply type elevator |
| CN114135237A (en) * | 2021-11-22 | 2022-03-04 | 山东力强机械有限责任公司 | Multifunctional elevator |
| CN114135237B (en) * | 2021-11-22 | 2024-04-19 | 山东力强机械有限责任公司 | Multifunctional elevator |
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