CA2811779A1 - Drilling apparatus having head - Google Patents
Drilling apparatus having head Download PDFInfo
- Publication number
- CA2811779A1 CA2811779A1 CA2811779A CA2811779A CA2811779A1 CA 2811779 A1 CA2811779 A1 CA 2811779A1 CA 2811779 A CA2811779 A CA 2811779A CA 2811779 A CA2811779 A CA 2811779A CA 2811779 A1 CA2811779 A1 CA 2811779A1
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- CA
- Canada
- Prior art keywords
- driving shaft
- screw coupling
- screw
- rod
- unit rod
- 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.)
- Abandoned
Links
- 238000005553 drilling Methods 0.000 title claims description 63
- 238000010168 coupling process Methods 0.000 claims abstract description 76
- 238000005859 coupling reaction Methods 0.000 claims abstract description 76
- 230000008878 coupling Effects 0.000 claims abstract description 74
- 230000006698 induction Effects 0.000 claims abstract description 13
- 230000001939 inductive effect Effects 0.000 claims description 10
- 230000003028 elevating effect Effects 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 abstract 7
- 238000000034 method Methods 0.000 abstract 2
- 239000004576 sand Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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
- E21B6/00—Drives for drilling with combined rotary and percussive action
-
- 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
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
A punching device having a head part includes a punching device body, a lead supported by the punching device body, a driving shaft slidably installed on the lead and to which a unit rod for punching is connected, and a head part including an actuator for driving the driving shaft. A screw coupling part screw-coupled to an end of the unit rod disposed on an outer surface of the driving shaft to perform a punching process is disposed on the driving shaft. A screw coupling induction part, for smoothly screw-coupling a rod screw coupling part disposed in a hollow part of an end of the unit rod to the driving shaft, is disposed on a side of a front end of the screw coupling part. According to the punching device, the number of working processes for the coupling of the unit rod and the driving shaft may be reduced to improve working efficiency due to the punching.
Description
DRILLING APPARATUS HAVING HEAD
Technical Field The present invention relates to a drilling apparatus, and more particularly, to a drilling apparatus having a head, which facilitates engagement or disengagement between a rod and a driving shaft installed in the head when a drilling work is performed using a bit.
Background Art In general, a drilling apparatus is used to excavate deep holes into the ground for purposes of boring, soil testing or development of underground water.
The drilling apparatus is classified into a type in which a boring work is performed while rotating a rod having a bit, and a type in which a boring work is performed by rotating a rod having a bit or a cutter and striking the bit or the cutter using the rod.
A conventional drilling apparatus is disclosed in Korean Patent No. 624233.
The disclosed drilling apparatus comprises a main body having a driving device such as an engine, a leader supported by the main body, and a head sliding along the leader and generating an elevational force or a rotational force by a driving device provided in the main body, a rod coupled to the head and elevating or rotating by the head, and a drill unit provided at a front end of the rod and perforate the ground while elevating or rotating along with the rod.
The drill unit includes a bit striking and drilling the ground and a hammer operated by a hydraulic pressure to apply a striking force to the beat.
The drilling apparatus is configured to drill the ground to a predetermined depth such that the bit of the drill unit rotates or strikes the ground.
As the excavated depth increases in the course of drilling, the drilling work is performed by connecting unit rods to allow a drill unit to excavate the ground deeper and deeper. The unit rods are connected such that a driving shaft of a head is separated from the unit rod currently performing the drilling work and then connected to a new unit rod to perform a drilling work.
In the course of drilling, if the unit rods have relatively small diameters, it is difficult to align the driving shaft of the head with the unit rod. In particular, even if the unit rod and the driving shaft are coaxially aligned, it is not easy to screw-couple the unit rod to the driving shaft. Thus, it is impossible to increase the efficiency of the drilling work due to a trouble in screw-coupling of the unit rod and the driving shaft.
Meanwhile, a support pipe is installed to prevent a landslide during the drilling work. As the drill unit and the unit rod are inserted into the ground to a gradually increasing depth, it is necessary to connect the support pipe. Since there is no separate means for balancing the support pipe, the support pipe may vibrate or may not be aligned with the center of a rotation shaft. Therefore, it is necessary to adjust the support pipe installed on the ground when the support pipe is connected.
Disclosure of the Invention In order to overcome the above-mentioned shortcomings, the present invention provides a drilling apparatus having a head, which facilitates engagement or disengagement between a rod and a driving shaft of the head when a drilling work is performed, thereby increasing the efficiency in the drilling work.
The present invention also provides a drilling apparatus having a head, which enables engagement between a driving shaft and a unit rod according to the diameter of the unit rod connected to the driving shaft.
According to an aspect of the invention, there is provided a drilling apparatus having a head, including a main body, a lead supported by the main body of the drilling apparatus, a driving shaft slidably installed in the lead and having a unit rod connected thereto for performing drilling work, and a head having an actuator for driving the driving shaft, wherein the driving shaft includes a screw coupling part formed on the outer circumferential surface of the driving shaft and screw-coupled with an end of the unit rod for performing the drilling work, and a screw coupling inducing part formed at a front end of the screw coupling part to induce screw coupling between the driving shaft and a rod screw coupling part formed at a hollow part formed at the end of the unit rod.
A stopper may be provided on the outer circumferential surface of a top end of the screw coupling part of the driving shaft for preventing the unit rod screw-coupled to the driving shaft from elevating.
The screw coupling induction part may include a taper part extending from the screw coupling part of the driving shaft to an end of the screw coupling induction part and having diameters gradually decreasing.
According to another aspect of the invention, there is provided a drilling apparatus having a head, including a main body, a lead supported by the main body of the drilling apparatus, a driving shaft slidably installed in the lead and having a unit rod connected thereto for performing drilling work, and a head having an actuator for driving the driving shaft, wherein the driving shaft includes a first driving shaft supported on the head body by a bearing and exposed to a bottom end of the head body, and a second driving shaft having a screw coupling part screw-coupled coaxially with the first driving shaft and screw-coupled with an end of the unit rod for performing the drilling work, and a screw coupling inducing part formed at a front end of the screw coupling part to induce screw coupling between the driving shaft and a rod screw coupling part formed at a hollow part formed at the end of the unit rod.
The first driving shaft may include stepped coupling parts having different diameters, and a plurality of second driving shafts having different diameters to be selectively coupled to the coupling parts of the first driving shaft.
Technical Field The present invention relates to a drilling apparatus, and more particularly, to a drilling apparatus having a head, which facilitates engagement or disengagement between a rod and a driving shaft installed in the head when a drilling work is performed using a bit.
Background Art In general, a drilling apparatus is used to excavate deep holes into the ground for purposes of boring, soil testing or development of underground water.
The drilling apparatus is classified into a type in which a boring work is performed while rotating a rod having a bit, and a type in which a boring work is performed by rotating a rod having a bit or a cutter and striking the bit or the cutter using the rod.
A conventional drilling apparatus is disclosed in Korean Patent No. 624233.
The disclosed drilling apparatus comprises a main body having a driving device such as an engine, a leader supported by the main body, and a head sliding along the leader and generating an elevational force or a rotational force by a driving device provided in the main body, a rod coupled to the head and elevating or rotating by the head, and a drill unit provided at a front end of the rod and perforate the ground while elevating or rotating along with the rod.
The drill unit includes a bit striking and drilling the ground and a hammer operated by a hydraulic pressure to apply a striking force to the beat.
The drilling apparatus is configured to drill the ground to a predetermined depth such that the bit of the drill unit rotates or strikes the ground.
As the excavated depth increases in the course of drilling, the drilling work is performed by connecting unit rods to allow a drill unit to excavate the ground deeper and deeper. The unit rods are connected such that a driving shaft of a head is separated from the unit rod currently performing the drilling work and then connected to a new unit rod to perform a drilling work.
In the course of drilling, if the unit rods have relatively small diameters, it is difficult to align the driving shaft of the head with the unit rod. In particular, even if the unit rod and the driving shaft are coaxially aligned, it is not easy to screw-couple the unit rod to the driving shaft. Thus, it is impossible to increase the efficiency of the drilling work due to a trouble in screw-coupling of the unit rod and the driving shaft.
Meanwhile, a support pipe is installed to prevent a landslide during the drilling work. As the drill unit and the unit rod are inserted into the ground to a gradually increasing depth, it is necessary to connect the support pipe. Since there is no separate means for balancing the support pipe, the support pipe may vibrate or may not be aligned with the center of a rotation shaft. Therefore, it is necessary to adjust the support pipe installed on the ground when the support pipe is connected.
Disclosure of the Invention In order to overcome the above-mentioned shortcomings, the present invention provides a drilling apparatus having a head, which facilitates engagement or disengagement between a rod and a driving shaft of the head when a drilling work is performed, thereby increasing the efficiency in the drilling work.
The present invention also provides a drilling apparatus having a head, which enables engagement between a driving shaft and a unit rod according to the diameter of the unit rod connected to the driving shaft.
According to an aspect of the invention, there is provided a drilling apparatus having a head, including a main body, a lead supported by the main body of the drilling apparatus, a driving shaft slidably installed in the lead and having a unit rod connected thereto for performing drilling work, and a head having an actuator for driving the driving shaft, wherein the driving shaft includes a screw coupling part formed on the outer circumferential surface of the driving shaft and screw-coupled with an end of the unit rod for performing the drilling work, and a screw coupling inducing part formed at a front end of the screw coupling part to induce screw coupling between the driving shaft and a rod screw coupling part formed at a hollow part formed at the end of the unit rod.
A stopper may be provided on the outer circumferential surface of a top end of the screw coupling part of the driving shaft for preventing the unit rod screw-coupled to the driving shaft from elevating.
The screw coupling induction part may include a taper part extending from the screw coupling part of the driving shaft to an end of the screw coupling induction part and having diameters gradually decreasing.
According to another aspect of the invention, there is provided a drilling apparatus having a head, including a main body, a lead supported by the main body of the drilling apparatus, a driving shaft slidably installed in the lead and having a unit rod connected thereto for performing drilling work, and a head having an actuator for driving the driving shaft, wherein the driving shaft includes a first driving shaft supported on the head body by a bearing and exposed to a bottom end of the head body, and a second driving shaft having a screw coupling part screw-coupled coaxially with the first driving shaft and screw-coupled with an end of the unit rod for performing the drilling work, and a screw coupling inducing part formed at a front end of the screw coupling part to induce screw coupling between the driving shaft and a rod screw coupling part formed at a hollow part formed at the end of the unit rod.
The first driving shaft may include stepped coupling parts having different diameters, and a plurality of second driving shafts having different diameters to be selectively coupled to the coupling parts of the first driving shaft.
=
As described above, in the drilling apparatus having a head according to the present invention, the unit rod and the driving shaft can be easily engaged with each other during a drilling work, thereby increasing the efficiency of the drilling work.
Brief Description of the Drawings The objects, features and advantages of the present invention will be more apparent from the following detailed description in conjunction with the accompanying drawings, in which:
FIG. 1 is a side view of a drilling apparatus having a head according to the present invention;
FIG. 2 is a cross-sectional view of the drilling apparatus shown in FIG. 1;
FIG. 3 is an exploded perspective view of a driving shaft according to an embodiment of the present invention;
FIGS. 4 and 5 are perspective views of driving shafts according to another embodiment of the present invention; and FIG. 6 is a perspective view illustrating a state in which a driving shaft and a unit rod are engaged with each other.
Best Mode for Carrying Out the Invention Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The drilling apparatus according to the present invention facilitates engagement between a unit rod and a driving shaft of the head when the ground hole is excavated, and en exemplary embodiment of the drilling apparatus is shown in FIGS. 1 to 5.
Referring to FIGS. 1 to 5, the drilling apparatus 100 having a head includes a lead 20 supported by a main body 10, a driving shaft 40 slidably installed in the lead 20 and connected to the topmost unit rod among the unit rods 70 connected to each other for drilling work, a head 30 having an actuator (not shown) for driving the driving shaft 40, and a support pipe 200 installed on the ground for preventing earth and sand around a hole excavated by the lead from collapsing.
The head 30 slidably installed along the lead 20 and is configured to elevate by a separate driver (although not shown, the driver including sprockets installed at top and bottom portions of the lead 20, a chain locked on the sprockets and having one side fixed to the head 30, and a hydraulic motor driving one of the sprockets). As shown in FIG. 2, a hydraulic motor 33 for driving the driving shaft 40 rotatably supported by the bearing 32 is installed in a main body 31 of the head 30.
The hydraulic motor 33 receives hydraulic oil by a hydraulic supply system installed in the main body 10 to then be driven.
As shown in FIGS. 2 and 3, the driving shaft 40 includes a screw coupling part 41 and a screw coupling inducing part 42. The screw coupling part 41 is formed on the outer circumferential surface of the driving shaft 40 and is screw-coupled to an end of the unit rod 70 for performing a drilling work. The screw coupling inducing part 42 is formed at a front end of the screw coupling part 41 to smoothly achieve screw coupling between the driving shaft 40 and a rod screw coupling part 73 formed at a hollow part 70a at the end of the unit rod 70. A
The stopper 43 may include a protrusion formed on the outer The hollow part 40a is formed at the driving shaft 40 in a lengthwise direction. The screw coupling inducing part 42 may be tapered upwardly from its end. That is to say, a diameter of an end of the screw coupling induction part 42 is FIG. 4 illustrates a head driving shaft of a drilling apparatus according to another embodiment of the present invention.
As described above, in the drilling apparatus having a head according to the present invention, the unit rod and the driving shaft can be easily engaged with each other during a drilling work, thereby increasing the efficiency of the drilling work.
Brief Description of the Drawings The objects, features and advantages of the present invention will be more apparent from the following detailed description in conjunction with the accompanying drawings, in which:
FIG. 1 is a side view of a drilling apparatus having a head according to the present invention;
FIG. 2 is a cross-sectional view of the drilling apparatus shown in FIG. 1;
FIG. 3 is an exploded perspective view of a driving shaft according to an embodiment of the present invention;
FIGS. 4 and 5 are perspective views of driving shafts according to another embodiment of the present invention; and FIG. 6 is a perspective view illustrating a state in which a driving shaft and a unit rod are engaged with each other.
Best Mode for Carrying Out the Invention Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The drilling apparatus according to the present invention facilitates engagement between a unit rod and a driving shaft of the head when the ground hole is excavated, and en exemplary embodiment of the drilling apparatus is shown in FIGS. 1 to 5.
Referring to FIGS. 1 to 5, the drilling apparatus 100 having a head includes a lead 20 supported by a main body 10, a driving shaft 40 slidably installed in the lead 20 and connected to the topmost unit rod among the unit rods 70 connected to each other for drilling work, a head 30 having an actuator (not shown) for driving the driving shaft 40, and a support pipe 200 installed on the ground for preventing earth and sand around a hole excavated by the lead from collapsing.
The head 30 slidably installed along the lead 20 and is configured to elevate by a separate driver (although not shown, the driver including sprockets installed at top and bottom portions of the lead 20, a chain locked on the sprockets and having one side fixed to the head 30, and a hydraulic motor driving one of the sprockets). As shown in FIG. 2, a hydraulic motor 33 for driving the driving shaft 40 rotatably supported by the bearing 32 is installed in a main body 31 of the head 30.
The hydraulic motor 33 receives hydraulic oil by a hydraulic supply system installed in the main body 10 to then be driven.
As shown in FIGS. 2 and 3, the driving shaft 40 includes a screw coupling part 41 and a screw coupling inducing part 42. The screw coupling part 41 is formed on the outer circumferential surface of the driving shaft 40 and is screw-coupled to an end of the unit rod 70 for performing a drilling work. The screw coupling inducing part 42 is formed at a front end of the screw coupling part 41 to smoothly achieve screw coupling between the driving shaft 40 and a rod screw coupling part 73 formed at a hollow part 70a at the end of the unit rod 70. A
The stopper 43 may include a protrusion formed on the outer The hollow part 40a is formed at the driving shaft 40 in a lengthwise direction. The screw coupling inducing part 42 may be tapered upwardly from its end. That is to say, a diameter of an end of the screw coupling induction part 42 is FIG. 4 illustrates a head driving shaft of a drilling apparatus according to another embodiment of the present invention.
Referring to FIG. 4, a head driving shaft 50 is supported on the head body 31 by a bearing 32 to be rotatably installed, and includes a first driving shaft 51 formed at an end exposed to a bottom end of the head body 31 and a second driving shaft 55 combined with the first driving shaft 51.
The first driving shaft 51 may include stepped coupling parts 51a, 51b and 51c having different diameters. Screws for being coupled to the second driving shaft 55 are formed on the outer circumferential surfaces of the coupling parts 51a, 51b and 51c.
The second driving shaft 55 may include a plurality of second driving shafts having different diameters (corresponding to diameters of unit rods) to be engaged with the coupling parts 51a, 51b and 51c of the first driving shaft 51. The second driving shafts 55 having different diameters are provided for the purpose of being compatibly used when the unit rods for performing a drilling work have different diameters.
The second driving shaft 55 may include a coupling screw part 56, a screw coupling part 57 and a screw coupling inducing part 58. The coupling screw part 56 is formed on the inner circumferential surface of the second driving shaft 55 to be coaxially coupled to the first driving shaft 51, the screw coupling part 57 is formed on the outer circumferential surface of the second driving shaft 55 to be screw-coupled to the rod screw coupling part 73 of the unit rod 70, and the screw coupling inducing part 58 extends from the screw coupling part 57. As described above, the screw coupling inducing part 58 is tapered such that its diameter gradually decreases from the screw coupling part 57 to its end. The end of the screw coupling induction part 58 may be spherical to facilitate insertion of the hollow part 70a of the unit rod 70 into the screw coupling induction part 58.
A
hollow part 40a is formed in a lengthwise direction of the first and second driving shafts 51 and 55.
As shown in FIG. 5, the first and second driving shafts 51 and 55 may be coupled to the first and second driving shafts 51 and 55 by flange parts 61 and 62.
A stopper 59 may be installed in the second driving shaft 55 to prevent the unit rod 70 coupled to the second driving shaft 55 and performing a drilling work from elevating while rotating. A position adjusting unit (not shown) may further be provided at an upper portion of the stopper 59 to hold the support pipe 200 inserted into an excavated portion for preventing earth and sand existing around the excavated portion from collapsing. The position adjusting unit is tapered such that its upper side has a larger diameter than the support pipe 200.
The aforementioned drilling apparatus operates as follows.
As shown in FIGS. 1 and 6, in order to excavate an underground hole using the drilling apparatus according to the present invention, the drilling apparatus is positioned at a portion where the ground hole is to be formed, and the lead 20 is vertically positioned on the portion where the ground hole is to be formed.
In such a state, the head 30 is positioned on the lead 20 and the unit rod 70 is then connected to the driving shaft 40. An air hammer or a water hammer 80 for performing a drilling work is installed at a bottom end of the unit rod 70.
The first driving shaft 51 may include stepped coupling parts 51a, 51b and 51c having different diameters. Screws for being coupled to the second driving shaft 55 are formed on the outer circumferential surfaces of the coupling parts 51a, 51b and 51c.
The second driving shaft 55 may include a plurality of second driving shafts having different diameters (corresponding to diameters of unit rods) to be engaged with the coupling parts 51a, 51b and 51c of the first driving shaft 51. The second driving shafts 55 having different diameters are provided for the purpose of being compatibly used when the unit rods for performing a drilling work have different diameters.
The second driving shaft 55 may include a coupling screw part 56, a screw coupling part 57 and a screw coupling inducing part 58. The coupling screw part 56 is formed on the inner circumferential surface of the second driving shaft 55 to be coaxially coupled to the first driving shaft 51, the screw coupling part 57 is formed on the outer circumferential surface of the second driving shaft 55 to be screw-coupled to the rod screw coupling part 73 of the unit rod 70, and the screw coupling inducing part 58 extends from the screw coupling part 57. As described above, the screw coupling inducing part 58 is tapered such that its diameter gradually decreases from the screw coupling part 57 to its end. The end of the screw coupling induction part 58 may be spherical to facilitate insertion of the hollow part 70a of the unit rod 70 into the screw coupling induction part 58.
A
hollow part 40a is formed in a lengthwise direction of the first and second driving shafts 51 and 55.
As shown in FIG. 5, the first and second driving shafts 51 and 55 may be coupled to the first and second driving shafts 51 and 55 by flange parts 61 and 62.
A stopper 59 may be installed in the second driving shaft 55 to prevent the unit rod 70 coupled to the second driving shaft 55 and performing a drilling work from elevating while rotating. A position adjusting unit (not shown) may further be provided at an upper portion of the stopper 59 to hold the support pipe 200 inserted into an excavated portion for preventing earth and sand existing around the excavated portion from collapsing. The position adjusting unit is tapered such that its upper side has a larger diameter than the support pipe 200.
The aforementioned drilling apparatus operates as follows.
As shown in FIGS. 1 and 6, in order to excavate an underground hole using the drilling apparatus according to the present invention, the drilling apparatus is positioned at a portion where the ground hole is to be formed, and the lead 20 is vertically positioned on the portion where the ground hole is to be formed.
In such a state, the head 30 is positioned on the lead 20 and the unit rod 70 is then connected to the driving shaft 40. An air hammer or a water hammer 80 for performing a drilling work is installed at a bottom end of the unit rod 70.
The unit rod 70 and the driving shaft 40 are engaged with each other such that the unit rod 70 is suspended using a crane (not shown), the screw coupling induction part 42 of the driving shaft 40 is inserted into the hollow part 70a of the unit rod 70, and the driving shaft 40 is rotated while moving the unit rod 70 and the driving shaft 40 with respect to each other. In such a manner, in a state in which the screw coupling induction part 42 extending from the screw coupling part 41 of the driving shaft 40 is inserted into the hollow part 70a of the unit rod 70, the screw coupling part 41 is guided to the rod screw coupling part 73 of the unit rod 70, thereby facilitating engagement of the unit rod 70 and the driving shaft 40, which will now be described in more detail. Since the screw coupling induction part provided at the driving shaft 40 has a diameter gradually decreasing from the screw coupling part 41, even if the unit rod 70 and the driving shaft 40 are not aligned in line, the screw coupling induction part 42 can be easily inserted into the hollow part 70a of the unit rod 70.
Therefore, the problem associated with the conventional drilling apparatus, that is, the necessity for making the end of the unit rod 70 and the driving shaft 40 coincide with each other by an operator's manual work, can be solved. In particular, when the unit rod 70 has a small diameter and a small thickness, engagement of the unit rod 70 and the driving shaft 40 can be smoothly achieved by being guided by the screw coupling induction part 42.
The above-described operation is achieved in the same manner as in engagement of the second driving shafts 55 and the unit rod 70. In particular, as shown in FIG. 4, the coupling parts 51a, 51b and 51c formed in multiple-steps are provided in the first driving shaft 51, and the second driving shafts 55 suited to diameters of the respective coupling parts 51a, 51b and 51c are provided, thereby allowing the second driving shafts 55 to be compatibly used according to the diameters of the unit rods for performing a drilling work.
Meanwhile, the stopper 43 for preventing the unit rod 70 from elevating due to a rotational force of the driving shaft 40 when the unit rod 70 is screw-coupled is provided at the driving shaft 40. Thus, even if a rotational load is applied to the unit rod 70 during a drilling work, it is possible to prevent the unit rod 70 from elevating along the screw coupling part 41 of the driving shaft 40. It is also possible to prevent the unit rod 70 screw-coupled to the screw coupling part 41 from being damaged due to the rotational load applied thereto while rotating. That is to say, the unit rod 70 can be prevented from being damaged, which may be caused when the unit rod 70 elevates to a portion of the driving shaft 40 without screws due to the rotational load.
In addition, the position adjusting unit for balancing the support pipe 200 installed for drilling soft ground is further provided at the driving shaft 40. When the head 30 is lowered, the position adjusting unit is inserted into the support pipe 200, thereby aligning centers of the support pipe 200 and the driving shaft 40.
Therefore, it is possible to prevent the center of the support pipe 2000 from deviating from the center of the unit rod 70 while the drilling work is performed.
Although exemplary embodiments of the present invention have been described in detail hereinabove, it should be understood that many variations and modifications of the basic inventive concept herein described, which may appear to those skilled in the art, will still fall within the spirit and scope of the exemplary embodiments of the present invention as defined by the appended claims.
4. A drilling apparatus having a head, comprising:
a main body;
a lead supported by the main body of the drilling apparatus;
a driving shaft slidably installed in the lead and having a unit rod connected thereto for performing a drilling work; and a head having an actuator for driving the driving shaft, wherein the driving shaft includes a first driving shaft supported on the head body by a bearing and exposed to a bottom end of the head body, and a second driving shaft having a screw coupling part screw-coupled coaxially with the first driving shaft and screw-coupled with an end of the unit rod for performing the drilling work, and a screw coupling inducing part formed at a front end of the screw coupling part to induce screw coupling between the driving shaft and a rod screw coupling part formed at a hollow part formed at the end of the unit rod.
5. The drilling apparatus of claim 4, wherein the first driving shaft includes stepped coupling parts having different diameters, and a plurality of second driving shafts having different diameters to be selectively coupled to the coupling parts of the first driving shaft.
Therefore, the problem associated with the conventional drilling apparatus, that is, the necessity for making the end of the unit rod 70 and the driving shaft 40 coincide with each other by an operator's manual work, can be solved. In particular, when the unit rod 70 has a small diameter and a small thickness, engagement of the unit rod 70 and the driving shaft 40 can be smoothly achieved by being guided by the screw coupling induction part 42.
The above-described operation is achieved in the same manner as in engagement of the second driving shafts 55 and the unit rod 70. In particular, as shown in FIG. 4, the coupling parts 51a, 51b and 51c formed in multiple-steps are provided in the first driving shaft 51, and the second driving shafts 55 suited to diameters of the respective coupling parts 51a, 51b and 51c are provided, thereby allowing the second driving shafts 55 to be compatibly used according to the diameters of the unit rods for performing a drilling work.
Meanwhile, the stopper 43 for preventing the unit rod 70 from elevating due to a rotational force of the driving shaft 40 when the unit rod 70 is screw-coupled is provided at the driving shaft 40. Thus, even if a rotational load is applied to the unit rod 70 during a drilling work, it is possible to prevent the unit rod 70 from elevating along the screw coupling part 41 of the driving shaft 40. It is also possible to prevent the unit rod 70 screw-coupled to the screw coupling part 41 from being damaged due to the rotational load applied thereto while rotating. That is to say, the unit rod 70 can be prevented from being damaged, which may be caused when the unit rod 70 elevates to a portion of the driving shaft 40 without screws due to the rotational load.
In addition, the position adjusting unit for balancing the support pipe 200 installed for drilling soft ground is further provided at the driving shaft 40. When the head 30 is lowered, the position adjusting unit is inserted into the support pipe 200, thereby aligning centers of the support pipe 200 and the driving shaft 40.
Therefore, it is possible to prevent the center of the support pipe 2000 from deviating from the center of the unit rod 70 while the drilling work is performed.
Although exemplary embodiments of the present invention have been described in detail hereinabove, it should be understood that many variations and modifications of the basic inventive concept herein described, which may appear to those skilled in the art, will still fall within the spirit and scope of the exemplary embodiments of the present invention as defined by the appended claims.
4. A drilling apparatus having a head, comprising:
a main body;
a lead supported by the main body of the drilling apparatus;
a driving shaft slidably installed in the lead and having a unit rod connected thereto for performing a drilling work; and a head having an actuator for driving the driving shaft, wherein the driving shaft includes a first driving shaft supported on the head body by a bearing and exposed to a bottom end of the head body, and a second driving shaft having a screw coupling part screw-coupled coaxially with the first driving shaft and screw-coupled with an end of the unit rod for performing the drilling work, and a screw coupling inducing part formed at a front end of the screw coupling part to induce screw coupling between the driving shaft and a rod screw coupling part formed at a hollow part formed at the end of the unit rod.
5. The drilling apparatus of claim 4, wherein the first driving shaft includes stepped coupling parts having different diameters, and a plurality of second driving shafts having different diameters to be selectively coupled to the coupling parts of the first driving shaft.
Claims (3)
1. A drilling apparatus having a head, comprising:
a main body;
a lead supported by the main body of the drilling apparatus;
a driving shaft slidably installed in the lead and having a unit rod connected thereto for performing a drilling work; and a head having an actuator for driving the driving shaft, wherein the driving shaft includes a screw coupling part formed on the outer circumferential surface of the driving shaft and screw-coupled with an end of the unit rod for performing the drilling work, and a screw coupling inducing part formed at a front end of the screw coupling part to induce screw coupling between the driving shaft and a rod screw coupling part formed at a hollow part formed at the end of the unit rod.
a main body;
a lead supported by the main body of the drilling apparatus;
a driving shaft slidably installed in the lead and having a unit rod connected thereto for performing a drilling work; and a head having an actuator for driving the driving shaft, wherein the driving shaft includes a screw coupling part formed on the outer circumferential surface of the driving shaft and screw-coupled with an end of the unit rod for performing the drilling work, and a screw coupling inducing part formed at a front end of the screw coupling part to induce screw coupling between the driving shaft and a rod screw coupling part formed at a hollow part formed at the end of the unit rod.
2. The drilling apparatus of claim 1, wherein a stopper is provided on the outer circumferential surface of a top end of the screw coupling part of the driving shaft for preventing the unit rod screw-coupled to the driving shaft from elevating.
3. The drilling apparatus of claim 1, wherein the screw coupling induction part includes a taper part extending from the screw coupling part of the driving shaft to an end of the screw coupling induction part and having diameters gradually decreasing.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2010-0095223 | 2010-09-30 | ||
KR20100095223 | 2010-09-30 | ||
KR1020110045376A KR20120033954A (en) | 2010-09-30 | 2011-05-13 | Boring machine having head part |
KR10-2011-0045376 | 2011-05-13 | ||
PCT/KR2011/007283 WO2012044127A2 (en) | 2010-09-30 | 2011-09-30 | Punching device having head part |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2811779A1 true CA2811779A1 (en) | 2012-04-05 |
Family
ID=46136600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2811779A Abandoned CA2811779A1 (en) | 2010-09-30 | 2011-09-30 | Drilling apparatus having head |
Country Status (8)
Country | Link |
---|---|
US (1) | US20130233624A1 (en) |
KR (1) | KR20120033954A (en) |
CN (1) | CN103140643A (en) |
AU (1) | AU2011308106A1 (en) |
BR (1) | BR112013007576A2 (en) |
CA (1) | CA2811779A1 (en) |
CL (1) | CL2013000824A1 (en) |
RU (1) | RU2013119901A (en) |
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EP2957708B1 (en) | 2007-12-12 | 2018-01-31 | Weatherford Technology Holdings, LLC | Top drive system |
KR101638178B1 (en) * | 2013-09-17 | 2016-07-08 | 인석신 | Boring machine having suspension unit |
KR101684907B1 (en) * | 2014-06-18 | 2016-12-09 | 인석신 | Rod clamping device |
DE102014225726A1 (en) * | 2014-12-12 | 2016-06-16 | Maik Kettner | Methods and devices for ground improvement |
US10465457B2 (en) | 2015-08-11 | 2019-11-05 | Weatherford Technology Holdings, Llc | Tool detection and alignment for tool installation |
US10626683B2 (en) | 2015-08-11 | 2020-04-21 | Weatherford Technology Holdings, Llc | Tool identification |
BR112018003130A2 (en) | 2015-08-20 | 2018-09-18 | Weatherford Tech Holdings Llc | upper drive unit system and method for calculating the torque applied to a higher drive unit system |
US10323484B2 (en) | 2015-09-04 | 2019-06-18 | Weatherford Technology Holdings, Llc | Combined multi-coupler for a top drive and a method for using the same for constructing a wellbore |
EP3347559B1 (en) | 2015-09-08 | 2021-06-09 | Weatherford Technology Holdings, LLC | Genset for top drive unit |
US10590744B2 (en) | 2015-09-10 | 2020-03-17 | Weatherford Technology Holdings, Llc | Modular connection system for top drive |
US10167671B2 (en) | 2016-01-22 | 2019-01-01 | Weatherford Technology Holdings, Llc | Power supply for a top drive |
US11162309B2 (en) | 2016-01-25 | 2021-11-02 | Weatherford Technology Holdings, Llc | Compensated top drive unit and elevator links |
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US10954753B2 (en) | 2017-02-28 | 2021-03-23 | Weatherford Technology Holdings, Llc | Tool coupler with rotating coupling method for top drive |
US10480247B2 (en) | 2017-03-02 | 2019-11-19 | Weatherford Technology Holdings, Llc | Combined multi-coupler with rotating fixations for top drive |
US11131151B2 (en) | 2017-03-02 | 2021-09-28 | Weatherford Technology Holdings, Llc | Tool coupler with sliding coupling members for top drive |
US10443326B2 (en) | 2017-03-09 | 2019-10-15 | Weatherford Technology Holdings, Llc | Combined multi-coupler |
US10247246B2 (en) | 2017-03-13 | 2019-04-02 | Weatherford Technology Holdings, Llc | Tool coupler with threaded connection for top drive |
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US10526852B2 (en) | 2017-06-19 | 2020-01-07 | Weatherford Technology Holdings, Llc | Combined multi-coupler with locking clamp connection for top drive |
US10544631B2 (en) | 2017-06-19 | 2020-01-28 | Weatherford Technology Holdings, Llc | Combined multi-coupler for top drive |
US10355403B2 (en) | 2017-07-21 | 2019-07-16 | Weatherford Technology Holdings, Llc | Tool coupler for use with a top drive |
US10527104B2 (en) | 2017-07-21 | 2020-01-07 | Weatherford Technology Holdings, Llc | Combined multi-coupler for top drive |
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US11047175B2 (en) | 2017-09-29 | 2021-06-29 | Weatherford Technology Holdings, Llc | Combined multi-coupler with rotating locking method for top drive |
US11441412B2 (en) | 2017-10-11 | 2022-09-13 | Weatherford Technology Holdings, Llc | Tool coupler with data and signal transfer methods for top drive |
CN112814065B (en) * | 2020-12-30 | 2022-05-17 | 丰城市和泰矿产有限公司 | Drill rod displacement trigger mechanism of quartering hammer |
KR102404517B1 (en) * | 2021-08-10 | 2022-06-02 | 김명원 | Rock drilling apparatus and method of crushing rock using the same |
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US4100968A (en) * | 1976-08-30 | 1978-07-18 | Charles George Delano | Technique for running casing |
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KR19980011176U (en) * | 1996-08-14 | 1998-05-25 | 김종목 | Rod connection structure of perforator |
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US7882902B2 (en) * | 2006-11-17 | 2011-02-08 | Weatherford/Lamb, Inc. | Top drive interlock |
EP2957708B1 (en) * | 2007-12-12 | 2018-01-31 | Weatherford Technology Holdings, LLC | Top drive system |
JP2009235874A (en) * | 2008-03-28 | 2009-10-15 | Tube Tech 株式会社 | Joint for excavation tool |
US8240371B2 (en) * | 2009-06-15 | 2012-08-14 | Tesco Corporation | Multi-function sub for use with casing running string |
-
2011
- 2011-05-13 KR KR1020110045376A patent/KR20120033954A/en active Search and Examination
- 2011-09-30 US US13/824,848 patent/US20130233624A1/en not_active Abandoned
- 2011-09-30 RU RU2013119901/03A patent/RU2013119901A/en not_active Application Discontinuation
- 2011-09-30 AU AU2011308106A patent/AU2011308106A1/en not_active Abandoned
- 2011-09-30 CN CN2011800478060A patent/CN103140643A/en active Pending
- 2011-09-30 BR BR112013007576A patent/BR112013007576A2/en not_active IP Right Cessation
- 2011-09-30 CA CA2811779A patent/CA2811779A1/en not_active Abandoned
-
2013
- 2013-03-26 CL CL2013000824A patent/CL2013000824A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
US20130233624A1 (en) | 2013-09-12 |
KR20120033954A (en) | 2012-04-09 |
AU2011308106A1 (en) | 2013-05-16 |
RU2013119901A (en) | 2014-11-10 |
BR112013007576A2 (en) | 2016-08-02 |
CN103140643A (en) | 2013-06-05 |
CL2013000824A1 (en) | 2013-11-15 |
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Legal Events
Date | Code | Title | Description |
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EEER | Examination request |
Effective date: 20130319 |
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FZDE | Discontinued |
Effective date: 20160609 |