CN111794693A - Omnibearing floating drill rod - Google Patents
Omnibearing floating drill rod Download PDFInfo
- Publication number
- CN111794693A CN111794693A CN202010733745.4A CN202010733745A CN111794693A CN 111794693 A CN111794693 A CN 111794693A CN 202010733745 A CN202010733745 A CN 202010733745A CN 111794693 A CN111794693 A CN 111794693A
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- China
- Prior art keywords
- drill rod
- connecting sleeve
- mounting
- transition
- omni
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- 230000007704 transition Effects 0.000 claims abstract description 37
- 238000005553 drilling Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000005299 abrasion Methods 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
- E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
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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)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses an omnibearing floating drill rod which comprises a connecting disc, a transition rotary disc, a connecting sleeve and a driving drill rod, wherein the connecting disc is connected with a rotating main shaft; the omnibearing floating drill rod of the technical scheme has the greatest advantage that the active drill rod can automatically reset under the action of the adjusting mechanism after the drill rod is assembled and disassembled, so that the stability and the directionality of the drill rod are ensured; meanwhile, the structure is not affected by fit clearance, and the problem that the shaking of the driving drill rod in the circumferential direction exceeds the standard due to the fact that the clearance at the fit part is enlarged due to abrasion is avoided. Therefore, the processing cost of the workpiece is greatly reduced, the service life of the driving drill rod is prolonged, the directionality and the stability of drilling are ensured, and the quality and the efficiency of drilling are improved.
Description
Technical Field
The invention relates to the field of drill rods, in particular to an omnibearing floating drill rod.
Background
The active drill rod on the power head of the full hydraulic drilling machine has the function of loading and unloading the drill rod by utilizing the clockwise and anticlockwise rotation of the active drill rod. The concentricity of the drill rod grabbed by the driving drill rod and the manipulator and the drill rod clamped on the clamp holder is theoretically required to be consistent when the drill rod is assembled and disassembled, otherwise, the connecting threads on the drill rod can generate the phenomena of grinding, dragging threads and even breaking threads due to different shafts when the drill rod is assembled and disassembled forcibly, and serious accidents such as drill rod breakage, power head damage and the like can be generated in serious cases. But in actual operation, the coaxiality is difficult to be consistent due to the existence of machining errors and assembly errors. In order to solve the problem, the clearance between the connecting threads is utilized, the driving drill rod is structurally allowed to float to a certain extent in the circumferential direction, the centering connection of the driving drill rod is facilitated, but the floating cannot be too large, otherwise the functions of drill rod connection, drilling direction and the like are influenced.
The existing method is to control the floating of the driving drill rod in the circumferential direction by controlling the clearance at the matching part of the outer circle of the driving drill rod and the inner hole of the transition disc. However, the clearance is small, the drill rod is pressed to be dead and loses floating in the circumferential direction, and the connecting thread can generate the phenomena of grinding, dragging and even breaking the thread; the clearance is large, the floating in the circumferential direction is large, the drill rod head shakes greatly, and the functions of drill rod connection, drilling direction and the like are influenced. This requires high precision of the machining, which increases the machining cost. Meanwhile, in the process of assembling and disassembling the drill rod and drilling the active drill rod, the matching position of the excircle of the active drill rod and the inner hole of the transition disc can be abraded, the longer the time is, the larger the abrasion is, the larger the matching gap is gradually increased, and the drill rod can exceed the standard in the floating in the circumferential direction. When the drilling machine drills holes under a mine, the drilling machine almost continuously works, even if the matching part of the drill rod and the transition disc is subjected to overheating treatment and the like to enhance the abrasion resistance, abrasion still exists, and the service life of the driving drill rod is greatly shortened.
Therefore, an omnibearing floating drill rod is needed to solve the above problems.
Disclosure of Invention
In view of the above, the omnibearing floating drill rod has the greatest advantages that after the drill rod is assembled and disassembled, the driving drill rod can automatically reset under the action of the adjusting mechanism, so that the stability and the directionality of the drill rod are ensured; meanwhile, the structure is not affected by fit clearance, and the problem that the shaking of the driving drill rod in the circumferential direction exceeds the standard due to the fact that the clearance at the fit part is enlarged due to abrasion is avoided. Therefore, the processing cost of the workpiece is greatly reduced, the service life of the driving drill rod is prolonged, the directionality and the stability of drilling are ensured, and the quality and the efficiency of drilling are improved.
An omnibearing floating drill rod comprises a connecting disc connected with a rotating main shaft, a transition rotary disc coaxially arranged with the connecting disc, a connecting sleeve fixedly connected with the connecting disc and a driving drill rod arranged between the transition rotary disc and the connecting sleeve; and an adjusting mechanism for actively resetting the driving drill rod is arranged between the transition turntable and the connecting sleeve.
Furthermore, the middle part of the transition turntable is provided with a mounting hole for mounting the driving drill rod, and a mounting cavity for the reciprocating motion of the driving drill rod is formed between the connecting sleeve and the transition turntable. The driving drill rod is arranged between the transition rotary table and the connecting sleeve, the transition rotary table is provided with a mounting hole as the center, the driving drill rod can slide back and forth along the mounting hole, the mounting cavity is convenient for providing a space for the driving drill rod to slide back and forth, and the characteristic of all-dimensional floating can be met when the driving drill rod is used.
Furthermore, an annular mounting step is formed at the end part of the driving drill rod, and the adjusting mechanism comprises a plurality of return springs arranged between the mounting step and the connecting sleeve.
Furthermore, a plurality of groups of mounting holes are correspondingly formed between the end part of the mounting step and the inner end face of the connecting sleeve one by one, and the reset spring is fixedly arranged between the corresponding mounting holes.
Further, the reset springs are eight and are evenly arranged in the circumferential direction of the installation step. Eight reset springs which are uniformly distributed along the circumferential direction are additionally arranged between the driving drill rod and the connecting sleeve, and two ends of each reset spring are respectively arranged in the corresponding spring holes of the driving drill rod and the corresponding connecting sleeve. The fit clearance between the return spring and the spring hole is controlled to be minimum. The floating of the driving drill rod in the circumferential direction is realized by the expansion and contraction of the eight return springs.
Furthermore, the end part of the rotating spindle, the transition turntable and the mounting step are provided with pin holes for mounting positioning pins along the same axis direction.
Furthermore, the whole section of the connecting sleeve is of a convex structure, and an annular groove for installing a transition turntable is formed at the end part of the connecting sleeve. The connecting sleeve tip is formed with annular groove structure, and the transition carousel is convenient for fix a position the installation for overall structure's stability can obtain further promotion.
Further, the transition carousel sets up between adapter sleeve and connection pad, the protruding location step portion that forms of transition carousel radial direction, adapter sleeve tip and location step portion fit for the setting.
The invention has the beneficial effects that:
the omnibearing floating drill rod has the greatest advantages that after the drill rod is assembled and disassembled, the active drill rod can automatically reset under the action of the adjusting mechanism, so that the stability and the directionality of the drill rod are ensured; meanwhile, the structure is not affected by fit clearance, and the problem that the shaking of the driving drill rod in the circumferential direction exceeds the standard due to the fact that the clearance at the fit part is enlarged due to abrasion is avoided. Therefore, the processing cost of the workpiece is greatly reduced, the service life of the driving drill rod is prolonged, the directionality and the stability of drilling are ensured, and the quality and the efficiency of drilling are improved.
Drawings
The invention is further described below with reference to the following figures and examples:
fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
FIG. 1 is a schematic view of the overall structure of the present invention; as shown in the figure, the omnibearing floating drill rod comprises a connecting disc 5 connected with a rotating main shaft 8, a transition rotary disc 4 coaxially arranged with the connecting disc 5, a connecting sleeve 2 fixedly connected with the connecting disc 5 and a driving drill rod 1 arranged between the transition rotary disc 4 and the connecting sleeve 2; and an adjusting mechanism for resetting the driving drill rod 1 is arranged between the transition rotary table 4 and the connecting sleeve 2. The omnibearing floating drill rod of the technical scheme has the greatest advantages that after the drill rod is assembled and disassembled, the driving drill rod 1 can automatically reset under the action of the adjusting mechanism, so that the stability and the directionality of the drill rod are ensured; meanwhile, the structure is not affected by fit clearance, and the problem that the shaking of the driving drill rod in the circumferential direction exceeds the standard due to the fact that the clearance at the fit part is enlarged due to abrasion is avoided. Therefore, the technical scheme greatly reduces the processing cost of the workpiece, prolongs the service life of the driving drill rod 1, ensures the directionality and stability of drilling, and improves the quality and efficiency of drilling.
In this embodiment, the middle of the transition rotary table 4 is provided with a mounting hole for mounting the driving drill rod 1, and a mounting cavity 9 for reciprocating motion of the driving drill rod 1 is formed between the connecting sleeve 2 and the transition rotary table 4. The driving drill rod 1 is arranged between the transition rotary table 4 and the connecting sleeve 2, the mounting hole is formed in the center of the transition rotary table 4, the driving drill rod can slide in a reciprocating mode along the mounting hole, the mounting cavity 9 is convenient to provide a space for the driving drill rod 1 to slide in a reciprocating mode, and the floating characteristic can be met when the driving drill rod is used.
In this embodiment, an annular mounting step 11 is formed at an end of the active drill rod 1, and the adjusting mechanism includes a plurality of return springs 3 disposed between the mounting step 11 and the connecting sleeve 2. The annular mounting step 11 formed at the end part of the driving drill rod 1 forms the limit of the drill rod, and meanwhile, the mounting position is convenient to form, the mounting hole for mounting the reset spring 3 is formed by processing the end face of the mounting step 11, and meanwhile, the mounting hole for mounting the reset spring 3 in a matched manner is also formed in the inner end face of the connecting sleeve 2 in the same axis direction (namely, the connecting line of two corresponding mounting holes is parallel to the axis), so that the reset spring 3 is positioned and mounted.
In this embodiment, a plurality of sets of mounting holes are correspondingly formed between the end of the mounting step 11 and the inner end surface of the connecting sleeve 2, and the return spring 3 is fixedly disposed between the corresponding mounting holes. 8 reset springs 3 which are uniformly distributed along the circumferential direction are arranged between the driving drill rod 1 and the connecting sleeve 2, and two ends of each reset spring 3 are respectively arranged in the corresponding mounting holes of the driving drill rod 1 and the connecting sleeve 2. The fit clearance of the return spring 3 and the mounting hole is controlled to be minimum. The floating of the main drill rod in the circumferential direction is realized by the expansion and contraction of the eight return springs 3.
In this embodiment, the end of the rotating main shaft 8, the transition rotary table 5 and the mounting step 11 are all provided with pin holes for mounting the positioning pins 7 along the same axial direction. The positioning pin 7 is connected with the three components, the coaxiality of the three components is ensured, the driving drill rod is always kept on the same axis when the integral structure is used, deviation cannot be found, and the service life of the integral mechanism and the product processing quality are ensured.
In this embodiment, the section of the connecting sleeve 2 is integrally in a convex structure, and an annular groove for installing the transition rotating disc 4 is formed at the end of the connecting sleeve 2. The end part of the connecting sleeve 2 is provided with an annular groove structure, and the transition turntable 4 is convenient for positioning and mounting, so that the stability of the whole structure is further improved.
In this embodiment, the transition rotating disc 4 is disposed between the connecting sleeve 2 and the connecting disc 5, a positioning step portion is formed by protruding the transition rotating disc 4 in the radial direction, and the end portion of the connecting sleeve 2 is disposed in form-fitting fit with the positioning step portion. The end parts of the connecting sleeve 2 and the connecting disc 5 are connected in a locating mode through the bolts 6, the transition rotary disc 4 is arranged between the connecting sleeve 2 and the connecting disc 5 in a shape-fitting mode, the whole structure is compact, machining is convenient, the drilling directionality and stability are guaranteed, and the drilling quality and efficiency are improved.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (8)
1. An all-round unsteady drilling rod which characterized in that: the drilling machine comprises a connecting disc, a transition rotary disc, a connecting sleeve and a driving drill rod, wherein the connecting disc is connected with a rotating main shaft; and an adjusting mechanism for resetting the driving drill rod is arranged between the transition turntable and the connecting sleeve.
2. The omni-directional floating drill pipe according to claim 1, wherein: the middle part of the transition turntable is provided with a mounting hole for mounting the driving drill rod, and a mounting cavity for the reciprocating motion of the driving drill rod is formed between the connecting sleeve and the transition turntable.
3. The omni-directional floating drill pipe according to claim 2, wherein: the end part of the driving drill rod is provided with an annular mounting step, and the adjusting mechanism comprises a plurality of return springs arranged between the mounting step and the connecting sleeve.
4. The omni-directional floating drill pipe according to claim 3, wherein: the mounting step is characterized in that a plurality of groups of mounting holes are correspondingly formed between the end part of the mounting step and the inner end face of the connecting sleeve one by one, and the reset spring is fixedly arranged between the corresponding mounting holes.
5. The omni-directional floating drill pipe according to claim 4, wherein: the reset springs are eight and eight reset springs which are uniformly arranged in the circumferential direction of the mounting step.
6. The omni-directional floating drill pipe according to claim 5, wherein: and pin holes for mounting positioning pins are formed in the end part of the rotating main shaft, the transition turntable and the mounting step along the same axis direction.
7. The omni-directional floating drill pipe according to claim 6, wherein: the connecting sleeve is integrally of a convex structure in section, and an annular groove for mounting the transition turntable is formed at the end of the connecting sleeve.
8. The omni-directional floating drill pipe according to claim 7, wherein: the transition turntable is arranged between the connecting sleeve and the connecting disc, the radial direction of the transition turntable protrudes to form a positioning step part, and the end part of the connecting sleeve is matched with the positioning step part in a shape-fitting manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010733745.4A CN111794693A (en) | 2020-07-27 | 2020-07-27 | Omnibearing floating drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010733745.4A CN111794693A (en) | 2020-07-27 | 2020-07-27 | Omnibearing floating drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111794693A true CN111794693A (en) | 2020-10-20 |
Family
ID=72828458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010733745.4A Pending CN111794693A (en) | 2020-07-27 | 2020-07-27 | Omnibearing floating drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111794693A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253017A (en) * | 2020-10-26 | 2021-01-22 | 中煤科工集团重庆研究院有限公司 | Floatable drill rod connecting device |
-
2020
- 2020-07-27 CN CN202010733745.4A patent/CN111794693A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253017A (en) * | 2020-10-26 | 2021-01-22 | 中煤科工集团重庆研究院有限公司 | Floatable drill rod connecting device |
| CN112253017B (en) * | 2020-10-26 | 2022-10-04 | 中煤科工集团重庆研究院有限公司 | Floatable drill rod connecting device |
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