CN112647878A - Colliery drilling rod with sample structure - Google Patents
Colliery drilling rod with sample structure Download PDFInfo
- Publication number
- CN112647878A CN112647878A CN202011550679.3A CN202011550679A CN112647878A CN 112647878 A CN112647878 A CN 112647878A CN 202011550679 A CN202011550679 A CN 202011550679A CN 112647878 A CN112647878 A CN 112647878A
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- Prior art keywords
- half bearing
- drill rod
- joint
- sampling
- ball
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- 238000005553 drilling Methods 0.000 title claims description 15
- 238000005070 sampling Methods 0.000 claims abstract description 61
- 239000003245 coal Substances 0.000 claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 7
- 230000002441 reversible effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
- E21B25/10—Formed core retaining or severing means
-
- 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
- E21B12/00—Accessories for drilling tools
Abstract
The invention discloses a coal mine drill rod with a sampling structure, which relates to the technical field of coal mine drill rods and comprises a drill rod main body, wherein a first connector is installed at the top of the drill rod main body, an annular groove is formed in the center of the outer part of the drill rod main body, a first half bearing is movably connected inside the annular groove, a hinge is connected to the left side of the first half bearing, the first half bearing is connected with a second half bearing through the hinge, and a half ball groove is formed in the inner side of the first half bearing. According to the invention, the first half bearing, the second half bearing and the sampling cylinder are arranged, the sampling cylinder is respectively arranged outside the first half bearing and the second half bearing, the first half bearing and the second half bearing are clamped outside the drill rod main body, the ball is tightly attached to the annular groove, the first half bearing and the second half bearing are oppositely rotated, and the first half bearing and the second half bearing are fixed together by using the locking screw, so that the sampling structure is simple to mount and dismount.
Description
Technical Field
The invention relates to the technical field of coal mine drill rods, in particular to a coal mine drill rod with a sampling structure.
Background
With the development of scientific technology and the progress of times, coal mining technology is more mature, a drill rod is used for connecting surface equipment of a drilling machine and drilling and grinding equipment or a bottom hole device positioned at the bottom end of a drilling well, the drill rod is used for conveying drilling mud to a drill bit and improving, reducing or rotating the bottom hole device together with the drill bit, and the interior of a coal mine needs to be sampled and detected before a large amount of coal mine mining is carried out, so that the coal mine drill rod with a sampling structure is provided.
The prior art has the following problems: 1. the existing coal mine drill rod with a sampling structure is troublesome to install and disassemble the sampling structure; 2. after the existing coal mine drill rod with a sampling structure finishes sampling, the sample is difficult to separate.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a coal mine drill rod with a sampling structure.
In order to achieve the purpose, the invention provides the following technical scheme:
a coal mine drill rod with a sampling structure comprises a drill rod main body, wherein a first joint is installed at the top of the drill rod main body, an annular groove is formed in the center of the outer portion of the drill rod main body, a first half bearing is movably connected to the inner portion of the annular groove, a hinge is connected to the left side of the first half bearing, a second half bearing is connected to the first half bearing through the hinge, a hemispherical groove is formed in the inner side of the first half bearing, a ball is movably connected to the inner portion of the hemispherical groove, a limiting piece is attached to the outer wall of the ball, a locking screw is connected between the right side of the first half bearing and the right side of the second half bearing, a sampling cylinder is connected to the outer portion of the first half bearing, a piston is movably connected to the inner portion of the sampling cylinder, a first spring is connected between the piston and the sampling cylinder, a movable rod is connected to the, and the outside of the second joint is movably connected with a threaded cap.
Preferably, the outer wall of the piston is tightly attached to the inner wall of the sampling tube, and an elastic structure is formed between the piston and the sampling tube through a first spring.
Preferably, the piston is connected with the sampling cylinder in a sliding manner, and the sampling cylinder is symmetrically distributed with two groups about the central axis of the drill rod main body.
Preferably, a rotating structure is formed between the first half bearing and the second half bearing through a hinge, and an integrated structure is formed between the first half bearing and the second half bearing through a locking screw.
Preferably, the diameter of the ball is smaller than that of the hemispherical groove, and the ball is in rolling connection with the hemispherical groove.
Preferably, the diameter of the ball is consistent with the width of the annular groove, and the outer wall of the ball is tightly attached to the annular groove.
Preferably, the outside swing joint of first joint has the locking lever, and the outside of locking lever is fixed with arc and props up the backplate, be connected with the second spring between arc and the first joint, and the inboard of arc props up the backplate and bonds and have the protection pad, the inside swing joint of first joint has fixed joint, and fixed joint's outside is seted up flutedly.
Preferably, the locking rod is in sliding connection with the first connector, and the locking rod is in clearance fit with the groove.
Preferably, an elastic structure is formed between the arc-shaped supporting plate and the first joint through a second spring, and four groups of arc-shaped supporting plates are symmetrically distributed around the center of the fixed joint.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the first half bearing, the second half bearing and the sampling cylinder are arranged, the sampling cylinder is respectively arranged outside the first half bearing and the second half bearing, the first half bearing and the second half bearing are clamped outside the drill rod main body, the ball is tightly attached to the annular groove, the first half bearing and the second half bearing are oppositely rotated, and the first half bearing and the second half bearing are fixed together by using the locking screw, so that the sampling structure is simple to mount and dismount.
2. According to the invention, the sampling cylinder, the piston and the movable rod are arranged, after the drilling and sampling are finished, the locking screw is unscrewed, the first half bearing and the second half bearing are taken down from the outside of the drill rod main body, the sampling cylinder is taken down, the movable rod is pushed downwards, the movable rod drives the piston to move downwards, and then the sample can be pushed out of the sampling cylinder, so that the sample can be separated easily after the sampling is finished.
3. According to the sampling device, the sampling cylinder, the piston and the first spring are arranged, a sample enters the sampling cylinder in the sampling process, the sample is accumulated continuously to push the piston to move upwards, the first spring is compressed, the first spring can apply reverse acting force to the piston, the sample can be compacted, and more samples can be collected in the sampling cylinder.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the first half bearing and the second half bearing of the present invention;
FIG. 3 is a schematic view of the distribution structure of the ring grooves in the present invention;
fig. 4 is a schematic view of the internal structure of the first joint according to the present invention.
In the figure: 1. a first joint; 2. a drill rod body; 3. a first half bearing; 4. a sampling tube; 5. a threaded cap; 6. a second half-bearing; 7. a piston; 8. a first spring; 9. a movable rod; 10. locking the screw; 11. a limiting member; 12. a hinge; 13. a ball bearing; 14. a hemispherical groove; 15. an annular groove; 16. a groove; 17. an arc-shaped supporting and protecting plate; 18. fixing the joint; 19. a lock lever; 20. a second spring; 21. a protective pad; 22. a second joint.
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 embodiments of the present invention, 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions:
a coal mine drill rod with a sampling structure comprises a first joint 1, a drill rod main body 2, a first half bearing 3, a sampling cylinder 4, a threaded cap 5, a second half bearing 6, a piston 7, a first spring 8, a movable rod 9, a locking screw 10, a limiting piece 11, a hinge 12, a ball 13, a semispherical groove 14, an annular groove 15, a groove 16, an arc-shaped supporting plate 17, a fixed joint 18, a locking rod 19, a second spring 20, a protective pad 21 and a second joint 22, wherein the first joint 1 is installed at the top of the drill rod main body 2, the annular groove 15 is arranged in the center of the outer portion of the drill rod main body 2, the first half bearing 3 is movably connected to the inner portion of the annular groove 15, the hinge 12 is connected to the left side of the first half bearing 3, the first half bearing 3 is connected to the second half bearing 6 through the hinge 12, the semispherical groove 14 is formed in the inner side of the first half bearing, and the outer wall laminating of ball 13 has stopper 11, be connected with locking screw 10 between the right side of first half bearing 3 and the right side of second half bearing 6, the external connection of first half bearing 3 has sampler barrel 4, and the inside swing joint of sampler barrel 4 has piston 7, be connected with first spring 8 between piston 7 and the sampler barrel 4, and the top of piston 7 is connected with movable rod 9, the second of drilling rod main part 2 is installed and is connected 22, and the outside swing joint of second joint 22 has screw cap 5.
As shown in fig. 1, the outer wall of the piston 7 is tightly attached to the inner wall of the sampling cylinder 4, an elastic structure is formed between the piston 7 and the sampling cylinder 4 through the first spring 8, the tight attachment ensures the stability of the piston 7 in the up-and-down moving process, the elastic structure can ensure that the piston 7 is extruded after a sample enters the sampling cylinder 4, and meanwhile, the first spring 8 applies reverse acting force to the piston 7, so that the sample can be compacted, and more samples can be collected in the sampling cylinder 4.
As shown in fig. 1, the piston 7 is slidably connected with the sampling cylinder 4, the sampling cylinder 4 is symmetrically distributed about the central axis of the drill rod body 2 in two groups, the piston 7 can be freely moved on the inner wall of the sampling cylinder 4 through the movable connection, and then the sample can be pushed out through the piston 7 after sampling is finished, and the sampling cylinder 4 is symmetrically distributed about the central axis of the drill rod body 2 in two groups, so that two samples can be taken in one drilling process.
As shown in fig. 1 and 2, a rotation structure is formed between the first half bearing 3 and the second half bearing 6 through a hinge 12, and an integrated structure is formed between the first half bearing 3 and the second half bearing 6 through a locking screw 10, the rotation structure ensures that the first half bearing 3 can rotate around the hinge 12, and further can be fixed outside the drill rod body 2 in a matching manner with the second half bearing 6, the integrated structure facilitates connection and separation of the first half bearing 3 and the second half bearing 6, and this helps to simplify steps of mounting and dismounting the sampling cylinder 4.
As shown in fig. 2, the diameter of the ball 13 is smaller than that of the hemispherical groove 14, the ball 13 is in rolling connection with the hemispherical groove 14, the diameter of the ball 13 is smaller than that of the hemispherical groove 14, the ball 13 can roll in the hemispherical groove 14, and the rolling connection helps to reduce friction between the first half bearing 3 and the second half bearing 6 and the drill rod body 2 and helps to reduce wear of the drill rod body 2.
As shown in fig. 2 and 3, the diameter of the ball 13 is consistent with the width of the annular groove 15, the outer wall of the ball 13 is tightly attached to the annular groove 15, the diameter of the ball 13 is consistent with the width of the annular groove 15, the ball 13 can be limited by the annular groove 15, the ball 13 cannot slide from the annular groove 15, the first half bearing 3 and the second half bearing 6 cannot fall off from the outside of the drill rod body 2, and the tight attachment contributes to improving the stability of the first half bearing 3 and the second half bearing 6 in the rotating process.
As shown in fig. 4, the outside of the first joint 1 is movably connected with a lock rod 19, the outside of the lock rod 19 is fixed with an arc-shaped supporting and protecting plate 17, a second spring 20 is connected between the arc-shaped supporting and protecting plate 17 and the first joint 1, the inner side of the arc-shaped supporting and protecting plate 17 is bonded with a protecting pad 21, the inside of the first joint 1 is movably connected with a fixed joint 18, and the outside of the fixed joint 18 is provided with a groove 16.
As shown in fig. 4, the locking rod 19 is slidably connected to the first connector 1, and the locking rod 19 is in clearance fit with the groove 16, so that the sliding connection ensures that the locking rod 19 can move freely inside the first connector 1, and further can be matched with the groove 16 to lock the fixed connector 18.
As shown in fig. 4, the arc-shaped supporting plate 17 and the first joint 1 form an elastic structure through the second spring 20, and four sets of the arc-shaped supporting plate 17 are symmetrically distributed about the center of the fixed joint 18, the elastic structure ensures that after the external force acting on the tail end of the locking rod 19 is removed, the arc-shaped supporting plate 17 can move oppositely under the elastic force of the second spring 20, and further can drive the locking rod 19 to move oppositely, finally, the locking rod 19 is matched with the groove 16 to lock the fixed joint 18, four sets of the arc-shaped supporting plate 17 are symmetrically distributed about the center of the fixed joint 18, and are fixed in four directions, so that the fixing effect is better, and the fixed joint 18 is ensured not to deform due to insufficient uniform stress in the operation process.
The working principle and the using process of the invention are as follows: when in use, the first joint 1 and the second joint 22 are respectively connected with the drill rod main body 2, the tail end of the second joint 22 is connected with the drill bit, the threaded cap 5 is tightly connected with the drill bit, the fixed joint 18 is butted with a drilling device, the locking rod 19 is pulled outwards, the fixed joint 18 is inserted into the first joint 1, the external force acting on the tail end of the locking rod 19 is removed, the arc-shaped supporting plate 17 can move towards each other under the elastic force of the second spring 20, and further the locking rod 19 can be driven to move towards each other, finally the locking rod 19 is matched with the groove 16 to lock the fixed joint 18, the sampling cylinders 4 are respectively arranged outside the first half bearing 3 and the second half bearing 6, the first half bearing 3 and the second half bearing 6 are clamped outside the drill rod main body 2, the ball 13 is tightly attached to the annular groove 15, the first half bearing 3 and the second half bearing 6 are rotated towards each other, and the first half bearing 3 and the second half bearing 6 are fixed together by the locking screw 10, can drive the drill bit downstream when drilling rod main part 2 rotates, and then can drive sampler barrel 4 downstream, the sample gets into the inside of sampler barrel 4 among the sampling process, the sample promotes piston 7 rebound, and then compress first spring 8, reverse action force is implemented to piston 7 to first spring 8, and then can be with the sample compaction, can make the inside of sampler barrel 4 gather more samples, after the sampling, unscrew locking screw 10, take off first half bearing 3 and second half bearing 6 from the outside of drilling rod main part 2, and take off sampler barrel 4, promote movable rod 9 downwards, movable rod 9 drives piston 7 rebound, and then can push out the sample from sampler barrel 4.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a colliery drilling rod with sample structure, includes drilling rod main part (2), its characterized in that: the drill rod comprises a drill rod main body (2), a first connector (1) is installed at the top of the drill rod main body (2), an annular groove (15) is formed in the center of the outer portion of the drill rod main body (2), a first half bearing (3) is movably connected to the inner portion of the annular groove (15), a hinge (12) is connected to the left side of the first half bearing (3), the first half bearing (3) is connected with a second half bearing (6) through the hinge (12), a half ball groove (14) is formed in the inner side of the first half bearing (3), a ball (13) is movably connected to the inner portion of the half ball groove (14), a limiting piece (11) is attached to the outer wall of the ball (13), a locking screw (10) is connected between the right side of the first half bearing (3) and the right side of the second half bearing (6), a sampling cylinder (4) is connected to the outer portion of the first half bearing (3, be connected with first spring (8) between piston (7) and sampler barrel (4), and the top of piston (7) is connected with movable rod (9), second joint (22) are installed to the below of drilling rod main part (2), and the outside swing joint of second joint (22) has screw cap (5).
2. The coal mine drill rod with the sampling structure as claimed in claim 1, wherein: the outer wall of the piston (7) is tightly attached to the inner wall of the sampling cylinder (4), and an elastic structure is formed between the piston (7) and the sampling cylinder (4) through a first spring (8).
3. The coal mine drill rod with the sampling structure as claimed in claim 1, wherein: the piston (7) is in sliding connection with the sampling cylinder (4), and the sampling cylinder (4) is symmetrically distributed with two groups about the central axis of the drill rod main body (2).
4. The coal mine drill rod with the sampling structure as claimed in claim 1, wherein: a rotating structure is formed between the first half bearing (3) and the second half bearing (6) through a hinge (12), and an integrated structure is formed between the first half bearing (3) and the second half bearing (6) through a locking screw (10).
5. The coal mine drill rod with the sampling structure as claimed in claim 1, wherein: the diameter of the ball (13) is smaller than that of the hemispherical groove (14), and the ball (13) is in rolling connection with the hemispherical groove (14).
6. The coal mine drill rod with the sampling structure as claimed in claim 1, wherein: the diameter of the ball (13) is consistent with the width of the annular groove (15), and the outer wall of the ball (13) is tightly attached to the annular groove (15).
7. The coal mine drill rod with the sampling structure as claimed in claim 1, wherein: the outer swing joint of first joint (1) has locking lever (19), and the outside of locking lever (19) is fixed with arc fender (17), be connected with second spring (20) between arc fender (17) and first joint (1), and the inboard of arc fender (17) bonds and has protection pad (21), the inside swing joint of first joint (1) has fixed joint (18), and the outside of fixed joint (18) is seted up fluted (16).
8. The coal mine drill rod with the sampling structure as claimed in claim 7, wherein: the lock rod (19) is in sliding connection with the first connector (1), and the lock rod (19) is in clearance fit with the groove (16).
9. The coal mine drill rod with the sampling structure as claimed in claim 7, wherein: an elastic structure is formed between the arc-shaped supporting plate (17) and the first joint (1) through a second spring (20), and four groups of arc-shaped supporting plates (17) are symmetrically distributed around the center of the fixed joint (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550679.3A CN112647878A (en) | 2020-12-24 | 2020-12-24 | Colliery drilling rod with sample structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550679.3A CN112647878A (en) | 2020-12-24 | 2020-12-24 | Colliery drilling rod with sample structure |
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| Publication Number | Publication Date |
|---|---|
| CN112647878A true CN112647878A (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011550679.3A Pending CN112647878A (en) | 2020-12-24 | 2020-12-24 | Colliery drilling rod with sample structure |
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| CN (1) | CN112647878A (en) |
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