CN119266731A - A two-way joint for grouting drilling rig - Google Patents
A two-way joint for grouting drilling rig Download PDFInfo
- Publication number
- CN119266731A CN119266731A CN202411452776.7A CN202411452776A CN119266731A CN 119266731 A CN119266731 A CN 119266731A CN 202411452776 A CN202411452776 A CN 202411452776A CN 119266731 A CN119266731 A CN 119266731A
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- China
- Prior art keywords
- pipe
- section
- pipe section
- outer sleeve
- way joint
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
本发明属于注浆钻机技术领域，具体涉及一种注浆钻机用的双路接头，包括外套管、内套管和中心管；外套管前端设置有前端进浆口和侧向进浆口连接有第一进浆头和第二进浆头；内套管的前管段与外套管的前端可旋转的密封连接；过渡段的管壁上的过水孔与第二进浆头连通；中管段与外套管的后端可旋转的密封连接；中心管安装于内套管内并与前管段密封连接，中心管的管腔与第一进浆头连通；过渡段、中管段和后管段与中心管缝隙配合，以在中心管与内套管之间形成第二过浆通道。本方案中的双路接头能够实现双路注浆，使得浆液相互隔离，防止两种浆液的混合，能够直接装入双液钻杆上，适合在带双液钻杆的超前钻机、坑道钻机上进行应用。
The present invention belongs to the technical field of grouting drilling rigs, and specifically relates to a two-way joint for grouting drilling rigs, including an outer sleeve, an inner sleeve and a center pipe; the front end of the outer sleeve is provided with a front slurry inlet and a lateral slurry inlet connected to a first slurry inlet head and a second slurry inlet head; the front pipe section of the inner sleeve is rotatably sealed and connected to the front end of the outer sleeve; the water hole on the pipe wall of the transition section is connected to the second slurry inlet head; the middle pipe section is rotatably sealed and connected to the rear end of the outer sleeve; the center pipe is installed in the inner sleeve and is sealed and connected to the front pipe section, and the tube cavity of the center pipe is connected to the first slurry inlet head; the transition section, the middle pipe section and the rear pipe section cooperate with the gap of the center pipe to form a second slurry passage between the center pipe and the inner sleeve. The two-way joint in this scheme can realize two-way grouting, so that the slurries are isolated from each other to prevent the mixing of the two slurries, and can be directly installed on the double-liquid drill pipe, and is suitable for application on advanced drilling rigs and tunnel drilling rigs with double-liquid drill pipes.
Description
Technical Field
The invention belongs to the technical field of grouting drilling rigs, and particularly relates to a double-way joint for a grouting drilling rig.
Background
The roof bolter is in drilling operation in-process, often needs to carry out slip casting to the drill bit through the drilling rod to realize cooling or lubrication, the drilling rod inside among the prior art is mostly single channel structure, and this kind of structure only need with the thick liquid that mixes carry out the infusion through the swivelling joint at drilling rod top can when carrying out the slip casting.
However, with the development of drilling machine technology, separate infusion of different slurries becomes a dominant trend, so that in the prior art, a double-fluid drill rod capable of performing two slurry infusions is designed, and the existing rotary connector cannot be compatible with the double-fluid drill rod, so that it is necessary to design a double-connector structure suitable for the double-fluid drill rod.
Disclosure of Invention
In order to solve the problems in the prior art, the scheme provides a double-way joint for a grouting drilling machine.
The technical scheme adopted by the invention is as follows:
A two-way joint for a grouting drilling machine comprises an outer sleeve, an inner sleeve and a central tube;
The front end of the outer sleeve is provided with a front end slurry inlet, and the pipe wall in the middle of the outer sleeve is provided with a lateral slurry inlet;
The inner sleeve comprises a front pipe section, a transition section, a middle pipe section and a rear pipe section which are sequentially arranged from front to back, wherein the front pipe section is coaxially arranged in the outer sleeve and is in rotatable sealing connection with the front end of the outer sleeve through a rotary sealing piece;
The central tube is arranged in the inner sleeve, the central tube is in sealing connection with the front tube section, the tube cavity of the central tube is used as a first pulp passing channel and is communicated with the first pulp inlet head, and the transition section, the central tube section and the rear tube section are in clearance fit with the central tube so as to form a second pulp passing channel between the central tube and the inner sleeve.
As an alternative or supplement of the double-way joint, the rear end of the double-way joint is used for being connected with a double-liquid drill rod of the grouting drilling machine, the double-liquid drill rod comprises an outer pipe rod and an inner pipe rod which are in gap fit with each other, the outer pipe rod is in sealing connection with the rear pipe section, a gap between the outer pipe rod and the inner pipe rod is communicated with the second slurry passing channel, the inner pipe rod is in sealing connection with the central pipe, and a pipe cavity of the inner pipe rod is communicated with the first slurry feeding channel.
As an alternative or supplement of the double-way joint, a centering ring is arranged between the central pipe and the rear pipe section, the central pipe is inserted into an annular hole in the center of the centering ring, the outer edge of the centering ring is propped against the pipe wall of the rear pipe section, and a notch or a through hole for passing slurry is arranged on the centering ring.
As an alternative or supplement to the double-way joint, the hole wall of the rear pipe section and the central pipe are provided with steps for propping against the end face of the centering ring.
Alternatively or additionally, the sealing ring comprises a first sealing ring and a second sealing ring, and the first sealing ring and the second sealing ring are arranged on the pipe wall at the rear end of the outer sleeve in tandem.
Alternatively or additionally, the rear end of the outer sleeve is connected with a gland, and a bearing is arranged between the gland and the outer wall of the middle pipe section.
As an alternative or supplement to the two-way joint, the bearing comprises a first bearing and a second bearing, wherein the first bearing is arranged in front of the second bearing, a force transmission arc ring is arranged between the first bearing and the second bearing and comprises a plurality of force transmission arc flaps, the rear edges of the force transmission arc flaps are turned inwards and are clamped and matched with an annular groove on the outer wall of the middle pipe section, and an outer hoop is sleeved outside the force transmission arc flaps.
As an alternative or supplement to the two-way joint, the step surface between the middle pipe section and the rear pipe section is abutted against the rear end surface of the second bearing inner ring, and the rear edge of the gland is turned inwards and abutted against the rear end surface of the second bearing outer ring.
Alternatively or additionally to the above two-way joint, the transition section is fitted with an outer sleeve slit so that the water passage is maintained in communication when the lateral pulp inlet is displaced.
The double-way joint has the beneficial effects that the double-way joint in the scheme can realize double-way grouting, so that the slurries are mutually isolated, the mixing of the two slurries is prevented, the double-way joint can be directly arranged on a double-liquid drill rod, and the double-way joint is suitable for being applied to an advanced drilling machine and an underground drilling machine with the double-liquid drill rod.
Drawings
In order to more clearly illustrate the embodiments of the present solution or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a perspective view of a two-way joint in the present embodiment;
FIG. 2 is a cross-sectional view of the two-way joint of the present embodiment;
FIG. 3 is a diagram of the mating structure of the inner sleeve and outer sleeve portions of the present solution;
FIG. 4 is a cross-sectional view of the outer sleeve portion of the present embodiment;
fig. 5 is a cross-sectional view of the inner sleeve portion of the present embodiment.
In the figure, the device comprises a first pulp inlet head, a second pulp inlet head, a 3-gland, a 4-inner sleeve, a 41-front pipe section, a 42-transition section, a 43-middle pipe section, a 44-rear pipe section, a 45-water passing hole, a 46-annular groove, a 5-outer sleeve, a 6-rotary sealing piece, a 7-first sealing ring, a 8-second sealing ring, a 9-first bearing, a 10-outer hoop ring, a 11-force transmission arc ring, a 12-second bearing, a 13-central pipe and a 14-centering ring.
Detailed Description
The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and the described embodiments are only some embodiments, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any creative effort based on the embodiments of the present embodiment are all within the protection scope of the present solution.
Example 1
As shown in fig. 1 to 5, the present embodiment designs a two-way joint for a grouting drilling machine, which includes an outer sleeve 5, an inner sleeve 4, a central tube 13, and other components.
The outer sleeve 5 is in a circular tube shape. The front end of the outer sleeve 5 is provided with a front end slurry inlet, and the front end slurry inlet is connected with a first slurry inlet head 1 in a welding or threaded connection mode, and the first slurry inlet head 1 can be a 90-degree elbow. The lateral slurry inlet is arranged on the pipe wall in the middle of the outer sleeve 5, and is connected with a second slurry inlet head 2 in a welding or threaded connection mode, and the second slurry inlet head 2 is generally a straight pipe.
The inner sleeve 4 has a circular tubular structure with a small front end and a large rear end, and the inner sleeve 4 comprises a front pipe section 41, a transition section 42, a middle pipe section 43 and a rear pipe section 44 which are sequentially arranged from front to rear.
The front pipe section 41 is coaxially arranged in the outer sleeve 5, the front pipe section 41 is in gap fit with the outer sleeve 5, a rotary sealing piece 6 is arranged in the gap between the front pipe section 41 and the outer sleeve 5, the rotary sealing piece 6 is in a circular ring shape, the inner wall of the rotary sealing piece 6 is in seal and rotatable fit with the outer wall of the front pipe section 41, the outer wall of the rotary sealing piece 6 is in seal fit with the inner wall of the outer sleeve 5, and when the first slurry inlet head 1 is in threaded connection with the front slurry inlet, the end face of the first slurry inlet head 1 abuts against the front end face of the rotary sealing piece 6 to realize seal fit.
The transition section 42 is coaxially arranged in the outer sleeve 5, the transition section 42 is in gap fit with the outer sleeve 5, the outer diameter of the transition section 42 is slightly larger than that of the front pipe section 41, and conditions are provided for the formation of the second slurry passing channel. The pipe wall of the transition section 42 is provided with a water passing hole 45, the water passing hole 45 is communicated with the second pulp inlet head 2, and the transition section 42 is in gap fit with the outer sleeve 5, so that the water passing hole 45 can be communicated with the lateral pulp inlet when the lateral pulp inlet is misplaced.
The front part of the middle pipe section 43 is coaxially arranged in the outer sleeve 5, the rear part of the middle pipe section 43 extends out of the outer sleeve 5, the middle pipe section 43 is in gap fit with the outer sleeve 5, the outer diameter of the middle pipe section 43 is slightly larger than that of the transition section 42, and conditions are provided for the formation of the second slurry passing channel. The outside of the front part of the middle pipe section 43 is in rotatable sealing connection with the rear end of the outer sleeve 5 through a sealing ring, the sealing ring comprises a first sealing ring 7 and a second sealing ring 8, and the first sealing ring 7 and the second sealing ring 8 are arranged on the pipe wall of the rear end of the outer sleeve 5 in tandem. The inner walls of the first sealing ring 7 and the second sealing ring 8 are in sealing and rotatable fit with the outer wall of the middle pipe section 43, and the outer walls of the first sealing ring 7 and the second sealing ring 8 are in sealing fit with the inner wall of the outer sleeve 5.
The rear pipe section 44 is positioned outside the outer sleeve 5 and is coaxial with the outer sleeve 5, and the inner wall of the rear end of the rear pipe section 44 is provided with internal threads so as to be conveniently connected with the outer pipe rod of the double-fluid drill pipe in a threaded manner.
The central tube 13 is arranged in the inner sleeve 4, the central tube 13 is connected with the front tube section 41 in a sealing way (tight fit or interference fit can be adopted to realize sealing), the tube cavity of the central tube 13 is used as a first pulp passing channel and is communicated with the first pulp inlet head 1, the transition section 42, the middle tube section 43 and the rear tube section 44 are in clearance fit with the central tube 13 so as to form a second pulp passing channel between the central tube 13 and the inner sleeve 4, and the second pulp passing channel is communicated with the water passing holes 45 and the lateral pulp inlet.
A centering ring 14 is arranged between the central pipe 13 and the rear pipe section 44, the centering ring 14 is used for supporting the rear end of the central pipe 13, so that the rear end of the central pipe 13 is kept at the center of the rear pipe section 44, the central pipe 13 is inserted into an annular hole in the center of the centering ring 14, the outer edge of the centering ring 14 abuts against the pipe wall of the rear pipe section 44, and a notch or a through hole for slurry passing is arranged on the centering ring 14, so that slurry can flow from the front side of the centering ring 14 to the rear side of the centering ring 14.
Steps for abutting against the end face of the centering ring 14 are arranged on the hole wall of the rear pipe section 44 and the center pipe 13.
The rear end of the outer sleeve 5 is connected with a gland 3, and a bearing is arranged between the gland 3 and the outer wall of the middle pipe section 43. The bearing comprises a first bearing 9 and a second bearing 12, wherein the first bearing 9 is arranged in front of the second bearing 12, a force transmission arc ring 11 is arranged between the first bearing 9 and the second bearing 12, the force transmission arc ring 11 comprises a plurality of force transmission arc flaps, the rear edges of the force transmission arc flaps are turned inwards and are in clamping fit with a ring groove 46 on the outer wall of a middle pipe section 43, an outer hoop 10 is sleeved outside the force transmission arc flaps, and the outer hoop 10 is used for gathering the force transmission arc flaps together. The step surface between the middle pipe section 43 and the rear pipe section 44 is abutted against the rear end surface of the inner ring of the second bearing 12, and the rear edge of the gland 3 is turned inwards and abutted against the rear end surface of the outer ring of the second bearing 12.
When the double-way joint for the grouting drilling machine is used, the rear end of the double-way joint is connected to a double-liquid drill rod of the grouting drilling machine, the double-liquid drill rod comprises an outer pipe rod and an inner pipe rod which are in gap fit with each other, after the double-way joint is connected with the double-liquid drill rod, the outer pipe rod is in threaded connection with the rear pipe section 44 and in sealing fit with the rear pipe section 44, and a gap is formed between the outer pipe rod and the rear end of the central pipe 13, so that the gap between the outer pipe rod and the inner pipe rod is communicated with the second slurry passing channel. The inner pipe rod is connected with the central pipe 13 in a sealing way, and the pipe cavity of the inner pipe rod is communicated with the first slurry inlet channel.
The foregoing examples are provided for the purpose of illustration only and are not intended to be limiting of the embodiments, nor are they necessarily intended to be exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present technology.
Claims (9)
1. The double-way joint for the grouting drilling machine is characterized by comprising an outer sleeve (5), an inner sleeve (4) and a central tube (13);
the front end of the outer sleeve (5) is provided with a front end slurry inlet, and the pipe wall in the middle of the outer sleeve (5) is provided with a lateral slurry inlet;
The inner sleeve (4) comprises a front pipe section (41), a transition section (42), a middle pipe section (43) and a rear pipe section (44) which are sequentially arranged from front to back, wherein the front pipe section (41) is coaxially arranged in the outer sleeve (5) and is in rotatable sealing connection with the front end of the outer sleeve (5) through a rotary sealing piece (6), a water passing hole (45) is formed in the pipe wall of the transition section (42), the water passing hole (45) is communicated with the second slurry inlet head (2), the middle pipe section (43) is coaxially arranged in the outer sleeve (5) and is in rotatable sealing connection with the rear end of the outer sleeve (5) through a sealing ring, and the rear pipe section (44) is positioned outside the rear end of the outer sleeve (5);
The central tube (13) is arranged in the inner sleeve (4), the central tube (13) is connected with the front tube section (41) in a sealing way, the tube cavity of the central tube (13) is used as a first pulp passing channel and is communicated with the first pulp inlet head (1), and the transition section (42), the middle tube section (43) and the rear tube section (44) are matched with gaps of the central tube (13) so as to form a second pulp passing channel between the central tube (13) and the inner sleeve (4).
2. The two-way joint for a grouting drilling machine according to claim 1, wherein the rear end of the two-way joint is used for being connected with a double-liquid drill rod of the grouting drilling machine, the double-liquid drill rod comprises an outer pipe rod and an inner pipe rod which are in gap fit with each other, the outer pipe rod is in sealing connection with a rear pipe section (44), a gap between the outer pipe rod and the inner pipe rod is communicated with a second slurry passing channel, the inner pipe rod is in sealing connection with a central pipe (13), and a pipe cavity of the inner pipe rod is communicated with a first slurry feeding channel.
3. A two-way joint for a grouting drilling machine according to claim 1, wherein a centering ring (14) is arranged between the center pipe (13) and the rear pipe section (44), the center pipe (13) is inserted into an annular hole in the center of the centering ring (14), the outer edge of the centering ring (14) is abutted against the pipe wall of the rear pipe section (44), and a notch or a through hole for passing slurry is arranged on the centering ring (14).
4. A two-way joint for a grouting drilling machine according to claim 3, wherein the hole wall of the rear pipe section (44) and the central pipe (13) are provided with steps for abutting against the end face of the centering ring (14).
5. The two-way joint for the grouting drilling machine according to claim 1, wherein the sealing rings comprise a first sealing ring (7) and a second sealing ring (8), and the first sealing ring (7) and the second sealing ring (8) are arranged on the pipe wall at the rear end of the outer sleeve (5) in tandem.
6. A two-way joint for a grouting drilling machine according to any one of claims 1-5, characterised in that the rear end of the outer sleeve (5) is connected with a gland (3), and a bearing is arranged between the gland (3) and the outer wall of the middle pipe section (43).
7. The two-way joint for the grouting drilling machine according to claim 6, wherein the bearing comprises a first bearing (9) and a second bearing (12), the first bearing (9) is arranged in front of the second bearing (12), a force transmission arc ring (11) is arranged between the first bearing (9) and the second bearing (12), the force transmission arc ring (11) comprises a plurality of force transmission arc flaps, the rear edges of the force transmission arc flaps are turned inwards and are clamped and matched with annular grooves (46) on the outer wall of the middle pipe section (43), and an outer hoop ring (10) is sleeved outside the force transmission arc flaps.
8. The two-way joint for a grouting drilling machine according to claim 7, wherein a step surface between the middle pipe section (43) and the rear pipe section (44) abuts against the rear end surface of the inner ring of the second bearing (12), and the rear edge of the gland (3) is turned inwards and abuts against the rear end surface of the outer ring of the second bearing (12).
9. A two-way joint for a grouting drilling machine according to claim 6, wherein the transition section (42) is in gap fit with the outer sleeve (5) so that the water passing hole (45) is kept in communication when the water passing hole is offset from the lateral slurry inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411452776.7A CN119266731A (en) | 2024-10-17 | 2024-10-17 | A two-way joint for grouting drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411452776.7A CN119266731A (en) | 2024-10-17 | 2024-10-17 | A two-way joint for grouting drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119266731A true CN119266731A (en) | 2025-01-07 |
Family
ID=94120712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411452776.7A Pending CN119266731A (en) | 2024-10-17 | 2024-10-17 | A two-way joint for grouting drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119266731A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195786A (en) * | 1991-02-01 | 1993-03-23 | Westinghouse Electric Corp. | Internally-located dual flow rotating union |
| CN105570580A (en) * | 2016-01-19 | 2016-05-11 | 江苏省无锡探矿机械总厂有限公司 | Double-medium high-pressure rotating joint |
| CN205402022U (en) * | 2016-01-19 | 2016-07-27 | 江苏省无锡探矿机械总厂有限公司 | Two media high pressure rotary joint |
| CN220059469U (en) * | 2023-06-09 | 2023-11-21 | 北京三一智造科技有限公司 | Rotary joint and rotary drilling rig |
-
2024
- 2024-10-17 CN CN202411452776.7A patent/CN119266731A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195786A (en) * | 1991-02-01 | 1993-03-23 | Westinghouse Electric Corp. | Internally-located dual flow rotating union |
| CN105570580A (en) * | 2016-01-19 | 2016-05-11 | 江苏省无锡探矿机械总厂有限公司 | Double-medium high-pressure rotating joint |
| CN205402022U (en) * | 2016-01-19 | 2016-07-27 | 江苏省无锡探矿机械总厂有限公司 | Two media high pressure rotary joint |
| CN220059469U (en) * | 2023-06-09 | 2023-11-21 | 北京三一智造科技有限公司 | Rotary joint and rotary drilling rig |
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| PB01 | Publication | ||
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Application publication date: 20250107 |