CN215169798U - Anti-sticking bores's reducing connecting device - Google Patents
Anti-sticking bores's reducing connecting device Download PDFInfo
- Publication number
- CN215169798U CN215169798U CN202120750795.3U CN202120750795U CN215169798U CN 215169798 U CN215169798 U CN 215169798U CN 202120750795 U CN202120750795 U CN 202120750795U CN 215169798 U CN215169798 U CN 215169798U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- sticking
- connecting device
- fan
- reducing connecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a reducing connecting device that anti-sticking bored, the device have welded the porose sleeve pipe in top on the basis of drilling rod and drill bit connecting piece, hold the rubble that drilling dropped through this sleeve pipe, have effectively reduced at the in-process that creeps into, because the rubble drops and the sticking of sediment initiation bores. In addition, the device can be connected with a drill bit with a larger diameter by a drill rod with a smaller diameter, saves the reaming cost in the use process, has a simple and practical structure, and has the characteristics of low cost and convenient use.
Description
Technical Field
The utility model relates to an investigation, drilling engineering field especially are used for the drilling engineering's in the geological survey engineering reducing connecting device of anti-sticking brill.
Background
In the process of lifting or drilling of a drilling tool, due to the fact that wall protection measures are not timely processed, hole wall collapse or broken stone falling is a common problem in drilling engineering, and accidents such as drill jamming are caused. In addition, in the drilling process of a broken stratum, in order to prevent water leakage and collapse, the wall protection liquid amount is often required to be increased to ensure the safety of a hole wall, but the viscosity of water is increased, so that the efficiency of discharging rock debris out of a well bottom through reverse water is reduced, a large amount of rock debris is accumulated in the well bottom, finally accidents such as drilling blockage are caused, the construction period is delayed, and great economic loss is caused.
Disclosure of Invention
In order to solve the problems, the invention discloses a drill clamping prevention variable-diameter connecting device which can effectively collect broken stones and sediments falling from a collapsed hole and prevent the drill clamping phenomenon.
A reducing connecting device for an anti-sticking drill comprises a drill rod, a reducing connecting piece and a drill bit which are sequentially arranged from top to bottom; the bottom of the sleeve is fixedly connected with the outer wall of the reducing connecting piece; wherein the top end of the sleeve is cut into four fan-shaped connecting parts; the top of the sleeve is fixedly connected with the outer surface of the drill rod through a fan-shaped connecting part; the top of the sleeve is cut into four top end preformed holes; wherein each top end preformed hole is positioned between every two adjacent fan-shaped connecting parts; the central angle of the fan-shaped connecting part is 45 degrees, the fan-shaped connecting part at the top end is bent to the circle center by 56 degrees through bending deformation, and the inclined length is 42.6 mm.
The utility model discloses the further improvement lies in: the diameter of drill bit is 135mm, the diameter of drill rod is 73 mm.
The utility model discloses the further improvement lies in: the diameter of the sleeve is 135 mm.
The utility model discloses the further improvement lies in: the sleeve is made of DZ50 grade steel.
The utility model discloses the further improvement lies in: the prepared hole at the top end of the sleeve is formed by electro-pneumatic welding and cutting, and the cutting and unfolding picture is shown in figure 5, wherein the upper bottom is 76mm long, and the lower bottom is 52mm long.
The utility model discloses the further improvement lies in: the cutting central angle of the fan-shaped connecting part at the top end of the sleeve is 45 degrees, and the cutting radius is 73 mm.
The utility model discloses the further improvement lies in: the fan-shaped connecting part at the top end of the sleeve is bent to the circle center by 56 degrees through bending deformation, and the inclined length is 42.6 mm.
The utility model discloses the further improvement lies in: each fan-shaped connecting part is fixedly connected with the drill rod through welding.
The top end of the sleeve and the top of the drill rod are cut to form the top end preformed hole, so that the annular columnar space is realized, the broken stone and sediment collection effect is realized, the broken stone and sediment falling from the collapsed hole can be effectively collected, and the drill sticking phenomenon is prevented; the reaming cost is saved, the structure is simple and practical, the connecting device is replaced on the basis of the original drill rod and the original drill bit, and the drilling machine has the characteristics of low cost and convenience in use.
Drawings
Fig. 1 is a schematic sectional structure of the present invention;
FIG. 2 is a bottom profile exploded big sample view of the reducing connecting device of the present invention;
FIG. 3 is a top plan view of the variable diameter connecting device of the present invention;
FIG. 4 is a top elevation view of the variable diameter connecting device of the present invention;
FIG. 5 is a top cross-sectional view of the variable diameter connection device of the present invention;
wherein 1-a drill rod; 2-a drill bit; 3-a variable diameter connecting piece; 4-a sleeve; 5-a fan-shaped connecting part; 6-reserving holes at the top.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1
This example is a drilling engineering construction of a geological environment recovery treatment project for a certain mine in Xinzhou city, Shanxi province. The project designs 405 drill holes with the aperture of 127mm and the total footage of 12914 m.
Due to the spontaneous combustion phenomenon of the goaf and the coal bed, the geological conditions of the construction site are very complex. The ordinary geological drill bit and the drill rod device are used in the early stage, the diameter of the drill bit is 135mm, the diameter of the drill rod is 127mm, and the problem of drill sticking frequently occurs.
The back has carried out technological improvement, has used this device, and 2 diameters 135mm of drill bit maintain unchangeably, and 1 diameters of drilling rod reduce to 73mm, have used reducing connector 3 between drilling rod 1 and drill bit 2, have welded the sleeve pipe 4 that the aperture is 135mm, the top distributes and have preformed hole 6 in reducing connector 3's outer end, and fan-shaped connecting portion 5 and drilling rod 1 welding are passed through to the upper end of sleeve pipe 4.
Adopted the utility model discloses afterwards, the sticking of tool phenomenon obviously reduces, and with the same stratum drilling operation in-process in district, no sticking of tool phenomenon takes place again.
Example 2
This embodiment is the geological environment recovery governing project drilling construction of a certain mine in ruby city, Shanxi province. The project designs 211 drilled holes with the aperture of 127mm and the total footage 17012 m.
The project also has the spontaneous combustion phenomenon of the goaf and the coal bed, and the geological conditions of the construction site are very complex.
In view of the successful experience of the embodiment 1, when the project is developed, technical improvement is directly carried out, the device is applied, the diameter of the drill bit 2 is 135mm, the diameter of the drill rod 1 is 73mm, the reducing connecting piece 3 is used between the drill rod 1 and the drill bit 2, the outer end of the connecting piece 3 is welded with the sleeve 4, the top end of the connecting piece is 135mm, the sleeve 4 is distributed with the reserved hole 6, and the upper end of the sleeve 4 is welded with the drill rod 1 through the fan-shaped connecting part 5.
The application of the technology greatly reduces the occurrence of the drill sticking phenomenon in the drilling process, the total drill sticking frequency is not more than 2 times, the drilling work efficiency is improved, and the implementation cost is reduced.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.
Claims (8)
1. The utility model provides a reducing connecting device of anti-sticking brill which characterized in that: comprises a drill rod (1), a reducing connecting piece (3) and a drill bit (2) which are arranged from top to bottom in sequence; the bottom of the sleeve (4) is welded and fixed with the outer wall of the reducing connecting piece (3); wherein the top end of the sleeve (4) is cut into four fan-shaped connecting parts (5); the top of the sleeve (4) is welded and fixed with the outer surface of the drill rod (1) through a fan-shaped connecting part (5); the top of the sleeve (4) is cut into four prepared holes (6); wherein each top end preformed hole (6) is positioned between every two adjacent fan-shaped connecting parts (5); the fan-shaped connecting part (5) bends towards the circle center through bending deformation.
2. The anti-sticking reducing connecting device of brill of claim 1, characterized in that: the diameter of the drill bit (2) is 135mm, and the diameter of the drill rod (1) is 73 mm.
3. The anti-sticking reducing connecting device of claim 1, characterized in that: the diameter of the sleeve (4) is 135 mm.
4. The anti-sticking reducing connecting device of claim 1, characterized in that: the sleeve (4) is made of DZ50 grade steel.
5. The anti-sticking reducing connecting device of claim 1, characterized in that: the prepared hole (6) at the top end of the sleeve (4) is formed by electrogas welding and cutting, the upper bottom is 76mm long, and the lower bottom is 52mm long.
6. The anti-sticking reducing connecting device of claim 1, characterized in that: the cutting central angle of the fan-shaped connecting part (5) at the top end of the sleeve (4) is 45 degrees, and the cutting radius is 73 mm.
7. The anti-sticking reducing connecting device of claim 1, characterized in that: the fan-shaped connecting part (5) at the top end of the sleeve (4) bends to the circle center by 56 degrees through bending deformation, and the inclined length is 42.6 mm.
8. The anti-sticking reducing connecting device of brill of claim 1, characterized in that: each fan-shaped connecting part (5) is fixedly connected with the drill rod (1) through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120750795.3U CN215169798U (en) | 2021-04-14 | 2021-04-14 | Anti-sticking bores's reducing connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120750795.3U CN215169798U (en) | 2021-04-14 | 2021-04-14 | Anti-sticking bores's reducing connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215169798U true CN215169798U (en) | 2021-12-14 |
Family
ID=79357097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120750795.3U Active CN215169798U (en) | 2021-04-14 | 2021-04-14 | Anti-sticking bores's reducing connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215169798U (en) |
-
2021
- 2021-04-14 CN CN202120750795.3U patent/CN215169798U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108729924A (en) | A kind of urban hard rock tunnel mechanical excavation rapid constructing method | |
| CN103277037B (en) | Pipe pile leading-hole construction method under boulder cluster geological condition | |
| CN102704852A (en) | Hinged drill with openable and closable inner core | |
| US3658368A (en) | Drill rod structures | |
| CN201386523Y (en) | Efficient drilling, grinding and milling integrated tool for well completion of horizontal well | |
| CN215169798U (en) | Anti-sticking bores's reducing connecting device | |
| CN102364030B (en) | Drill bit for breaking rock by rotary cutting | |
| CN109025875B (en) | Hydraulic differential mechanism with built-in steel balls | |
| CN212535724U (en) | Anchor rod locking device convenient to install and fix | |
| CN205349232U (en) | Cascaded enlarger | |
| CN101644136A (en) | Combination of reaming stabilizer and bottom drilling device | |
| CN217712429U (en) | Hollow type rapid construction drill bit suitable for hard rock stratum | |
| CN102587840B (en) | Hard formation casing windowing drill bit | |
| CN210768601U (en) | Eccentric hole diamond compact bit | |
| CN111563352B (en) | Water jet joint cutting pressure determination method based on solid-liquid two-phase theory | |
| CN204082011U (en) | The concentric reaming while drilling drill bit of single cone PDC | |
| CN219864916U (en) | Drilling debris collecting device for hydraulic fracturing method ground stress test | |
| DE19718573C2 (en) | Drilling process and drill head | |
| CN214659960U (en) | Reamer for drilling | |
| CN221144311U (en) | Reaming bit of rotary drilling rig | |
| CN217930449U (en) | Assembled underground fluid measuring equipment | |
| CN217481259U (en) | Wireless inclinometer while drilling | |
| CN215108750U (en) | Drill bit for rotary drilling of stratum | |
| JPH0317035B2 (en) | ||
| CN210033296U (en) | External thread ball tooth bore bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |