CA2827458C - Boring machine - Google Patents
Boring machine Download PDFInfo
- Publication number
- CA2827458C CA2827458C CA2827458A CA2827458A CA2827458C CA 2827458 C CA2827458 C CA 2827458C CA 2827458 A CA2827458 A CA 2827458A CA 2827458 A CA2827458 A CA 2827458A CA 2827458 C CA2827458 C CA 2827458C
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- CA
- Canada
- Prior art keywords
- holding
- rod
- unit
- leader
- head unit
- Prior art date
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- 230000003028 elevating effect Effects 0.000 claims abstract description 9
- 230000002452 interceptive effect Effects 0.000 claims description 6
- 238000004904 shortening Methods 0.000 abstract 1
- 238000009412 basement excavation Methods 0.000 description 14
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
- E21B19/164—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe motor actuated
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/24—Guiding or centralising devices for drilling rods or pipes
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)
Abstract
The present invention relates to a boring machine which comprises: a body; a leader that is supported by the body; a head unit that is moved along a lengthwise direction of the leader, and has a driving shaft coupled with a rod; a holding unit that is installed to slide on the leader along a lengthwise direction, and supports or holds the rod coupled with the head unit; and a moving unit that moves the holding unit by an elevating force of the head unit. According to the present invention, a boring machine enables a rod coupled with a head unit by a holding unit to be guided and positioned at the same axis as the head unit without shaking, thereby shortening operating time since a boring work of the rod and a connecting work of a new rod are easily performed.
Description
BORING MACHINE
Technical Field The present invention relates to a boring machine, and more particularly, to a boring machine provided with a holding unit for supporting or holding a rod elevated by a head unit and boring a hole into the ground to be coaxially position on the head unit.
Background Art In general, a boring machine is an apparatus for boring a deep hole in the ground to conduct extracting oil or natural gas, a close examination of the earth's crust or development of underground water.
A conventional boring machine is disclosed in Korean Patent Registration No. 0624233.
The conventional boring machine includes a body provided with a driving device, such as an engine, a leader supported by the body, a head unit sliding on the leader and generating an elevating or rotating force by the driving device of the body, a rod connected to the head unit and elevating or rotating by the head unit, and an excavation unit provided at an end of the rod and excavating the ground while elevating or rotating with the rod.
The excavation unit includes a bit striking and excavating the ground, and a hammer operated by a hydraulic pressure to impart a striking force to the bit. The hydraulic pressure may be transferred to the excavation unit by installing a separate hydraulic pressure line on the rod.
In the boring machine, the bit of the excavation unit rotates or strikes the ground, thereby excavating the ground to a predetermined depth. As the ground is excavated, the excavation unit and the rod penetrate into the ground. The length of the rod is extended by connecting a new rod as much as the depth in which the excavation unit and the rod penetrate into the ground.
Meanwhile, in order to support the rod connected with the excavation unit, a rod clamp into which the rod is inserted and held is provided at an end of a leader near the ground.
The rod connection is accomplished by separating the head unit from the rod penetrating into the ground together with the excavation unit and held by the rod clamp, connecting a new rod to the head unit, and combining the new rod to the existing rod held by the rod clamp.
However, in a case where the rod is connected in the above-described manner, since there is no separate unit for supporting the new rod coupled to the head unit, shaking may occur to the new rod. The shaking of the new rod may make it difficult to align connection positions of the new rod and the rod held by the rod clamp. Accordingly, a rod connecting work may be inconveniently performed.
Technical Field The present invention relates to a boring machine, and more particularly, to a boring machine provided with a holding unit for supporting or holding a rod elevated by a head unit and boring a hole into the ground to be coaxially position on the head unit.
Background Art In general, a boring machine is an apparatus for boring a deep hole in the ground to conduct extracting oil or natural gas, a close examination of the earth's crust or development of underground water.
A conventional boring machine is disclosed in Korean Patent Registration No. 0624233.
The conventional boring machine includes a body provided with a driving device, such as an engine, a leader supported by the body, a head unit sliding on the leader and generating an elevating or rotating force by the driving device of the body, a rod connected to the head unit and elevating or rotating by the head unit, and an excavation unit provided at an end of the rod and excavating the ground while elevating or rotating with the rod.
The excavation unit includes a bit striking and excavating the ground, and a hammer operated by a hydraulic pressure to impart a striking force to the bit. The hydraulic pressure may be transferred to the excavation unit by installing a separate hydraulic pressure line on the rod.
In the boring machine, the bit of the excavation unit rotates or strikes the ground, thereby excavating the ground to a predetermined depth. As the ground is excavated, the excavation unit and the rod penetrate into the ground. The length of the rod is extended by connecting a new rod as much as the depth in which the excavation unit and the rod penetrate into the ground.
Meanwhile, in order to support the rod connected with the excavation unit, a rod clamp into which the rod is inserted and held is provided at an end of a leader near the ground.
The rod connection is accomplished by separating the head unit from the rod penetrating into the ground together with the excavation unit and held by the rod clamp, connecting a new rod to the head unit, and combining the new rod to the existing rod held by the rod clamp.
However, in a case where the rod is connected in the above-described manner, since there is no separate unit for supporting the new rod coupled to the head unit, shaking may occur to the new rod. The shaking of the new rod may make it difficult to align connection positions of the new rod and the rod held by the rod clamp. Accordingly, a rod connecting work may be inconveniently performed.
2 Disclosure of the Invention In order to overcome the above-mentioned shortcomings, the present invention provides a boring machine provided with a holding unit for supporting or holding a rod coupled to a head unit to prevent the rod coupled to the head unit from shaking.
Certain exemplary embodiments can provide a boring machine comprising:
a body; a leader that is supported by the body; a head unit that is moved along a lengthwise direction of the leader, and has a driving shaft coupled with a rod; a holding unit that is slidably installed on the leader along a lengthwise direction, and supports or holds the rod coupled with the head unit; and a moving unit that moves the holding unit by an elevating force of the head unit, wherein the holding unit includes a housing slidably installed along the lengthwise direction of the leader, the first and second holding arms spaced apart from each other, having one ends rotatably installed at the housing along a direction crossing the lengthwise direction of the leader, and extending in parallel with each other to provide a holding space into which the rod is inserted, and an actuator rotating the first and second holding arms to allow the other ends thereof to get close to each other to hold the rod inserted into the holding space, wherein the first holding arm includes a first holding part and a second holding part, the first holding part being hingedly coupled to the housing and being formed to extend in a direction away from the housing, and the second holding part being formed to extend at an end of the first
Certain exemplary embodiments can provide a boring machine comprising:
a body; a leader that is supported by the body; a head unit that is moved along a lengthwise direction of the leader, and has a driving shaft coupled with a rod; a holding unit that is slidably installed on the leader along a lengthwise direction, and supports or holds the rod coupled with the head unit; and a moving unit that moves the holding unit by an elevating force of the head unit, wherein the holding unit includes a housing slidably installed along the lengthwise direction of the leader, the first and second holding arms spaced apart from each other, having one ends rotatably installed at the housing along a direction crossing the lengthwise direction of the leader, and extending in parallel with each other to provide a holding space into which the rod is inserted, and an actuator rotating the first and second holding arms to allow the other ends thereof to get close to each other to hold the rod inserted into the holding space, wherein the first holding arm includes a first holding part and a second holding part, the first holding part being hingedly coupled to the housing and being formed to extend in a direction away from the housing, and the second holding part being formed to extend at an end of the first
3 holding part and being inclined toward the holding space of the rod with a predetermined angle with respect to an extending direction of the first holding part, wherein the second holding arm includes a third holding part and a fourth holding part, the third holding part being hingedly coupled to the housing and being formed to extend in a direction away from the housing and, the fourth holding part being formed to extend at an end of the third holding part and being inclined toward the holding space of the rod with a predetermined angle with respect to an extending direction of the third holding part, and wherein the actuator comprises a first cylinder and a second cylinder, one end of the first cylinder being rotatably installed at an end of the first holding arm and the other end of the first cylinder being rotatably installed at the housing, and one end of the second cylinder being rotatably installed at an end of the second holding arm and the other end of the second cylinder is rotatably installed at the housing.
According to other embodiments, there is provided a boring machine including a body, a leader that is supported by the body, a head unit that is moved along a lengthwise direction of the leader, and has a driving shaft coupled with a rod, a holding unit that is slidably installed on the leader along a lengthwise direction, and supports or holds the rod coupled with the head unit, and a moving unit that moves the holding unit by an elevating force of the head unit.
3a =
The holding unit may include a housing slidably installed along the lengthwise direction of the leader, first and second holding arms spaced apart from each other, having one ends rotatably installed at the housing along a direction crossing the lengthwise direction of the leader, and extending in parallel with each other to provide a holding space into which the rod is inserted, and an actuator rotating the first and second holding arms to allow the other ends thereof to get close to each other to hold the rod inserted into the holding space.
The moving unit may include an extending member extending along the 3b lengthwise direction of the leader from the housing of the holding unit and installed to allow the head unit to be movable relative thereto, and an interfering member installed at an end of the extending member and interfered by the head unit so as to move the holding unit when the head unit moves.
The holding unit may further include a plurality of frictional protrusions protruding on inner surfaces of the first and second holding arms facing each other to improve forces of the first and second holding arms holding the rod.
Advantageous Effect(s) As described above, in the boring machine according to the present invention, since a rod coupled with a head unit is guided by a holding unit and is coaxially positioned with the head unit without shaking, an operating time is shortened by facilitating a boring work of the rod and a new rod connecting 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 illustrating a boring machine according to an embodiment of the present invention;
According to other embodiments, there is provided a boring machine including a body, a leader that is supported by the body, a head unit that is moved along a lengthwise direction of the leader, and has a driving shaft coupled with a rod, a holding unit that is slidably installed on the leader along a lengthwise direction, and supports or holds the rod coupled with the head unit, and a moving unit that moves the holding unit by an elevating force of the head unit.
3a =
The holding unit may include a housing slidably installed along the lengthwise direction of the leader, first and second holding arms spaced apart from each other, having one ends rotatably installed at the housing along a direction crossing the lengthwise direction of the leader, and extending in parallel with each other to provide a holding space into which the rod is inserted, and an actuator rotating the first and second holding arms to allow the other ends thereof to get close to each other to hold the rod inserted into the holding space.
The moving unit may include an extending member extending along the 3b lengthwise direction of the leader from the housing of the holding unit and installed to allow the head unit to be movable relative thereto, and an interfering member installed at an end of the extending member and interfered by the head unit so as to move the holding unit when the head unit moves.
The holding unit may further include a plurality of frictional protrusions protruding on inner surfaces of the first and second holding arms facing each other to improve forces of the first and second holding arms holding the rod.
Advantageous Effect(s) As described above, in the boring machine according to the present invention, since a rod coupled with a head unit is guided by a holding unit and is coaxially positioned with the head unit without shaking, an operating time is shortened by facilitating a boring work of the rod and a new rod connecting 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 illustrating a boring machine according to an embodiment of the present invention;
4 FIG. 2 is a side view illustrating a leader, a head unit, a holding unit and a moving unit of the boring machine shown in FIG. 1;
FIG. 3 is a side view illustrating an operating state of the boring machine shown in FIG. 1 when a head unit of the boring machine is lowered;
FIG. 4 is a perspective view illustrating the holding unit and the moving unit of the boring machine shown in FIG. 1; and FIG. 5 is a cross-sectional view of the holding unit of the boring machine shown in FIG. 1.
Best Mode for Carrying Out the Invention Hereinafter, a boring machine according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIGS. 1 to 4 illustrate a boring machine 10 according to the present invention.
Referring to FIGS. 1 to 4, the boring machine 10 includes a body 20, a leader 30 that is supported by the body 20, a head unit 40 that is moved along a lengthwise direction of the leader 30, and has a driving shaft coupled with a rod 50, a holding unit 60 that is slidably installed on the leader 30 along a lengthwise direction, and supports or holds the rod 50 coupled with the head unit 40, and a
FIG. 3 is a side view illustrating an operating state of the boring machine shown in FIG. 1 when a head unit of the boring machine is lowered;
FIG. 4 is a perspective view illustrating the holding unit and the moving unit of the boring machine shown in FIG. 1; and FIG. 5 is a cross-sectional view of the holding unit of the boring machine shown in FIG. 1.
Best Mode for Carrying Out the Invention Hereinafter, a boring machine according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIGS. 1 to 4 illustrate a boring machine 10 according to the present invention.
Referring to FIGS. 1 to 4, the boring machine 10 includes a body 20, a leader 30 that is supported by the body 20, a head unit 40 that is moved along a lengthwise direction of the leader 30, and has a driving shaft coupled with a rod 50, a holding unit 60 that is slidably installed on the leader 30 along a lengthwise direction, and supports or holds the rod 50 coupled with the head unit 40, and a
5 -1, moving unit that moves the holding unit 60 by an elevating force of the head unit 40.
The body 20 includes the moving unit 21 provided at its lower portion so as to be movable relative to the ground surface and a hydraulic pressure supply unit 22 provided at its upper portion to supply a hydraulic pressure to the rotation cylinder 31 rotating an excavation member 51 installed at an end of the rod 50, which will later be described, and the leader 30.
In the illustrated exemplary embodiment, the moving unit 21 moving the body 20 has an endless track, but the present invention does not limit the structure of the moving unit 21 to that illustrated herein. Rather, a plurality of moving wheels may be provided to move the body 20.
The leader 30 is rotatably installed in front of the body 20 and extends a predetermined length in an up-and-down direction. Here, the leader 30 is rotated relative to the body 20 by the rotation cylinder 31.
One end of the rotation cylinder 31 is rotatably installed at an upper side of the body 20 and the other end thereof is rotatably installed in the rear of the leader 30. The rotation cylinder 31 is preferably a hydraulic pressure actuator that is extended or contracted by the hydraulic pressure supplied from the hydraulic pressure supply unit 22.
A rail 33 is formed in front of the leader 30 to allow a housing 70 of the holding unit 60, which will later be described, to be slidably coupled to the leader 30. The rail 33 is formed to extend in an extending direction of the leader 30.
Meanwhile, a rod clamp 32 is installed at a bottom end of the leader 30
The body 20 includes the moving unit 21 provided at its lower portion so as to be movable relative to the ground surface and a hydraulic pressure supply unit 22 provided at its upper portion to supply a hydraulic pressure to the rotation cylinder 31 rotating an excavation member 51 installed at an end of the rod 50, which will later be described, and the leader 30.
In the illustrated exemplary embodiment, the moving unit 21 moving the body 20 has an endless track, but the present invention does not limit the structure of the moving unit 21 to that illustrated herein. Rather, a plurality of moving wheels may be provided to move the body 20.
The leader 30 is rotatably installed in front of the body 20 and extends a predetermined length in an up-and-down direction. Here, the leader 30 is rotated relative to the body 20 by the rotation cylinder 31.
One end of the rotation cylinder 31 is rotatably installed at an upper side of the body 20 and the other end thereof is rotatably installed in the rear of the leader 30. The rotation cylinder 31 is preferably a hydraulic pressure actuator that is extended or contracted by the hydraulic pressure supplied from the hydraulic pressure supply unit 22.
A rail 33 is formed in front of the leader 30 to allow a housing 70 of the holding unit 60, which will later be described, to be slidably coupled to the leader 30. The rail 33 is formed to extend in an extending direction of the leader 30.
Meanwhile, a rod clamp 32 is installed at a bottom end of the leader 30
6 positioned in the vicinity of the ground surface to be bored. The rod clamp 32 holds the rod 50 having penetrated into the ground when a new rod is connected to the rod 50.
Although not shown, the rod clamp 32 includes a restraint block and a binding unit. The restraint block forwardly protrudes in front of the leader 30 and has a through-hole corresponding to a section of the rod 50 to allow the rod 50 to be inserted into a top surface of the through-hole. The restraint unit is installed at the leader 30 provided above the restraint block and holds the outer circumferential surface of the rod 50 inserted into the through-hole.
Although not shown, the binding unit includes restraint bars and a movement actuator. The restraint bars may be installed on the front surface of the leader 30 positioned at opposite locations in view of an extension line of the center line of the through-hole of the restraint block and may slide in directions in which the restraint bars get closer to each other. The movement actuator moves the restraint bars.
When the new rod is connected to a top end of the rod 50 previously inserted into the ground, the restraint bars of the binding unit move in the directions in which the restraint bars get closer to each other, thereby holding the outer circumferential surface of the rod 50 inserted into the through-hole of the restraint block.
If connection of the new rod with the rod 50 is completed, the restraint bars of the binding unit move in directions in which the restraint bars are spaced apart
Although not shown, the rod clamp 32 includes a restraint block and a binding unit. The restraint block forwardly protrudes in front of the leader 30 and has a through-hole corresponding to a section of the rod 50 to allow the rod 50 to be inserted into a top surface of the through-hole. The restraint unit is installed at the leader 30 provided above the restraint block and holds the outer circumferential surface of the rod 50 inserted into the through-hole.
Although not shown, the binding unit includes restraint bars and a movement actuator. The restraint bars may be installed on the front surface of the leader 30 positioned at opposite locations in view of an extension line of the center line of the through-hole of the restraint block and may slide in directions in which the restraint bars get closer to each other. The movement actuator moves the restraint bars.
When the new rod is connected to a top end of the rod 50 previously inserted into the ground, the restraint bars of the binding unit move in the directions in which the restraint bars get closer to each other, thereby holding the outer circumferential surface of the rod 50 inserted into the through-hole of the restraint block.
If connection of the new rod with the rod 50 is completed, the restraint bars of the binding unit move in directions in which the restraint bars are spaced apart
7 from each other and are separated from the outer circumferential surface of the rod 50.
Here, an operator operates the head unit 40 to bore the ground surface using the excavation member 51 mounted on the rod 50 positioned at the bottommost side, such as a hammer.
The head unit 40 is sldiably installed on the front surface of the leader 30 and moves along the lengthwise direction of the leader 30 by an elevating unit, although not shown. A driving shaft 45, to which the top end of the rod 50 is coupled, is provided on a bottom surface of the head unit 40.
In addition, the head unit 40 is preferably provided with a penetration path (not shown) to movably install an extending member 76 of the moving unit 75 relative to the head unit 40, which will later be described, so that the extending member 76 can be inserted into the leader 30 while penetrating the leader 30 in a direction parallel with the lengthwise direction of the leader 30.
The head unit 40 is installed at the leader 30 of the boring machine 10 to elevate or rotate the rod 50, and may be one generally used in the related art, and a detailed description thereof will be omitted.
The rod 50 has a circular section and extends a predetermined length in an up-and-down direction. A connection unit (not shown) is formed on a top surface of the rod 50 in an up-and-down direction, and a coupling protrusion 52 is formed on a bottom end of the rod 50, the coupling protrusion 52 having a section sized to corresponding to the connection unit of a neighboring rod 50. Here, screw threads
Here, an operator operates the head unit 40 to bore the ground surface using the excavation member 51 mounted on the rod 50 positioned at the bottommost side, such as a hammer.
The head unit 40 is sldiably installed on the front surface of the leader 30 and moves along the lengthwise direction of the leader 30 by an elevating unit, although not shown. A driving shaft 45, to which the top end of the rod 50 is coupled, is provided on a bottom surface of the head unit 40.
In addition, the head unit 40 is preferably provided with a penetration path (not shown) to movably install an extending member 76 of the moving unit 75 relative to the head unit 40, which will later be described, so that the extending member 76 can be inserted into the leader 30 while penetrating the leader 30 in a direction parallel with the lengthwise direction of the leader 30.
The head unit 40 is installed at the leader 30 of the boring machine 10 to elevate or rotate the rod 50, and may be one generally used in the related art, and a detailed description thereof will be omitted.
The rod 50 has a circular section and extends a predetermined length in an up-and-down direction. A connection unit (not shown) is formed on a top surface of the rod 50 in an up-and-down direction, and a coupling protrusion 52 is formed on a bottom end of the rod 50, the coupling protrusion 52 having a section sized to corresponding to the connection unit of a neighboring rod 50. Here, screw threads
8 are preferably formed on the outer circumferential surface of the coupling protrusion 52 and the inner circumferential surface of the connection unit to allow the neighboring rods 50 to be threaded to each other.
Meanwhile, the excavation member 51 is installed at the bottommost end of the rod 50 so as to excavate the ground to be bored. Although not shown, hydraulic pressure lines are formed in the rod 50 to supply a hydraulic pressure from the hydraulic pressure supply unit 22 of the body 20 to the excavation member 51.
Even if multiple rods 50 are connected to one another, the hydraulic pressure lines of the respective rods 50 are preferably formed to penetrate in the up-and-down direction of the rods 50 to allow the hydraulic pressure lines to communicate with one another.
The holding unit 60 includes the housing 70 slidably installed along the lengthwise direction of the leader 30, the first and second holding arms 80 and 90 spaced apart from each other, having one ends rotatably installed at the housing 70 along a direction crossing the lengthwise direction of the leader 30, and extending in parallel with each other to provide a holding space into which the rod 50 is inserted, and an actuator 95 rotating the first and second holding arms 80 and 90 to allow the other ends thereof to get close to each other to hold the rod inserted into the holding space.
The housing 70 includes a base member 71 and first and second support plates 72 and 73. The base member 71 has a sliding groove 74 corresponding to a
Meanwhile, the excavation member 51 is installed at the bottommost end of the rod 50 so as to excavate the ground to be bored. Although not shown, hydraulic pressure lines are formed in the rod 50 to supply a hydraulic pressure from the hydraulic pressure supply unit 22 of the body 20 to the excavation member 51.
Even if multiple rods 50 are connected to one another, the hydraulic pressure lines of the respective rods 50 are preferably formed to penetrate in the up-and-down direction of the rods 50 to allow the hydraulic pressure lines to communicate with one another.
The holding unit 60 includes the housing 70 slidably installed along the lengthwise direction of the leader 30, the first and second holding arms 80 and 90 spaced apart from each other, having one ends rotatably installed at the housing 70 along a direction crossing the lengthwise direction of the leader 30, and extending in parallel with each other to provide a holding space into which the rod 50 is inserted, and an actuator 95 rotating the first and second holding arms 80 and 90 to allow the other ends thereof to get close to each other to hold the rod inserted into the holding space.
The housing 70 includes a base member 71 and first and second support plates 72 and 73. The base member 71 has a sliding groove 74 corresponding to a
9 section of the rail 33 formed on its bottom surface so as to slidably installed along the rail 33 protruding on the leader 30. The first and second support plates 72 and 73 are formed at positions spaced part from each other on the base member 71 in the lengthwise direction of the leader 30 to forwardly protrude in view of the leader 30.
The base member 71 is shaped of a plate having a predetermined thickness, and support arms are formed at opposite sides of the base member 71 to protrude rearwardly so as to form a sliding groove 74 under the base member 71.
The support arms extend such that ends thereof are bent in directions in which they get close to each other so as to prevent the base member 71 from being separated from the rail 33.
Each of the first and second support plates 72 and 73 is shaped of a plate having a predetermined thickness and has a trapezoidal shape to facilitate installation of the first and second holding arms 80 and 90 and rotating member 95, but the present invention does not limit the shapes of the first and second support plates 72 and 73 to those illustrated herein. Rather, the first and second support plates 72 and 73 may have various shapes.
One end of the first holding arm 80 is hingedly coupled by a first hinge shaft 89a between the first and second support plates 72 and 73. The first holding arm 80 includes a first holding part 81 and a second holding part 82. The first holding part 81 is formed to extend in a direction away from the base member 71 in view of the first hinge shaft 89a. The second holding part 82 is formed to extend at i an end of the first holding part 81 and is formed to be inclined toward the first hinge shaft 89a with a predetermined angle with respect to an extending direction of the first holding part 81.
Since the second holding part 82 is inclined with a predetermined angle with respect to the first holding part 81, a contact area of the first holding arm 80 with the recessed outer circumferential surface of the rod 50 can be increased.
One end of the second holding arm 90 is hingedly coupled at a position spaced apart from the first hinge shaft 89a of the first holding arm 80 by the second hinge shaft 89b formed in parallel with the first hinge shaft 89a. The second holding arm 90 includes a third holding part 91 and a fourth holding part 92. The third holding part 91 is formed to extend in a direction away from the base member 71 in view of the second hinge shaft 89b The fourth holding part 92 is formed to extend at an end of the third holding part 91 and is formed to be inclined toward the second hinge shaft 89b with a predetermined angle with respect to an extending direction of the third holding part 91.
Since the fourth holding part 92 is inclined with a predetermined angle with respect to the third holding part 91, a contact area of the second holding arm with the recessed outer circumferential surface of the rod 50 can be increased.
Meanwhile, the first and second holding arms 80 and 90 include a plurality of frictional protrusions 85 protruding on inner circumferential surfaces facing each other. A friction applied to the rod 50 can be increased by the frictional protrusions 85, thereby improving holding forces of the first and second holding arms 80 and 90 with respect to the rod 50.
The actuator 95 includes a first cylinder 96 and a second cylinder 97. One end of the first cylinder 96 is rotatably installed at an end of the first holding arm 80, and the other end of the first cylinder 96 is rotatably installed at the other end of the first holding arm 80 between the first and second support plates 72 and 73 facing the one end. One end of the second cylinder 97 is rotatably installed at an end of the second holding arm 90, and the other end of the second cylinder 97 is rotatably installed between the first and second support plates 72 and 73 facing the one end.
The first and second cylinders 96 and 97 are preferably hydraulic pressure actuators operating by being supplied with a hydraulic pressure from the hydraulic pressure supply unit 22 of the body 20.
One end of the moving unit 75 is fixed to the bottom surface of the base member 71 and the other end of the moving unit 75 is formed to upwardly extend in a lengthwise direction of the leader 30. The moving unit 75 includes an extending member 76 and an interfering member 77. The extending member 76 is installed to allow the head unit 40 to be movable relative thereto, and the interfering member 77 is installed at an end of the extending member 76 and is interfered by the head unit 40 so as to move the holding unit 60 when the head unit 40 moves.
The extending member 76 is shaped of a plate having a predetermined thickness and is inserted and penetrated into the penetration path of the head unit 40 moving along the lengthwise direction of the leader 30. When the head unit is lowered along the rod 50, even if the holding unit 60 is brought into contact with the ground or the rod clamp 32 to stop being lowered, the head unit 40 is moved relative to the extending member 76, thereby preventing the extending member or the head unit 40 from being damaged.
The interfering member 77 forwardly protrudes at a top end of the extending member 76 having penetrated through the head unit 40 so as to be interfered by the top surface of the head unit 40. Here, the interfering member 77 is preferably formed to have a width greater than that of the penetration path so as to prevent the extending member 76 from being separated from the head unit 40 through the penetration path of the head unit 40.
The operation of the aforementioned boring machine 10 according to the present invention will now be described in detail.
In order to connect a new rod to the top end of the rod 50 inserted into the ground surface through the boring work performed by the excavation member 51, the head unit 40 is first separated from the rod 50 held by the rod clamp 32.
The head unit 40 separated from the rod 50 is upwardly elevated along the leader 30, and the holding unit 60 is also elevated by the moving unit 75 together with the head unit 40.
Next, the new rod 50 is connected to the driving shaft 45 of the head unit 40. If the connection of the rod 50 with the head unit 40 is completed, the first and second cylinders 96 and 97 are operated to rotate the first and second holding arms 80 and 90 so as to move the other ends of the first and second holding arms =
80 and 90 to get close to each other.
As the first and second cylinders 96 and 97 are operated, the rod 50 is brought into the contact with inner surfaces of the first and second holding arms 80 and 90, the first and second holding arms 80 and 90 hold the outer circumferential surface of the rod 50 by the hydraulic pressure supplied to the first and second cylinders 96 and 97 If the operation of the holding unit 60 holding the rod 50 is completed, the operator lowers the head unit 40 in the lengthwise direction of the leader 30.
Here, the holding unit 60 is lowered together with the rod 50 and prevents the rod from shaking when the head unit 40 moves.
If the coupling protrusion 52 of the new rod 50 is inserted into the connection unit of the rod 50, the head unit 40 is threaded to the rod 50 inserted into the ground surface by rotating the new rod 50. Here, the first and second cylinders 96 and 97 are operated such that the other ends of the first and second holding arms 80 and 90 are away from each other, thereby cancelling a holding state in which the holding unit 60 holds the rod 50.
If connection of the rod 50 is completed, a hydraulic pressure is supplied to the excavation member 51 to resume a boring operation performed on the ground surface. Here, since the head unit 40 is movably installed relative to the extending member 76 of the moving unit 75, even if the head unit 40 is lowered to be in the vicinity of the ground surface, it is possible to prevent the head unit 40 from being interfered by the moving unit 75.
As described above, in the boring machine 10 according to the present invention, since the rod 50 coupled with the head unit 40 is guided by the holding unit 60 and is coaxially positioned with the head unit without shaking, an operating time can be shortened by facilitating a boring work of the rod and a new rod connecting work.
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 scope of the exemplary embodiments of the present invention as defined by the appended claims.
The base member 71 is shaped of a plate having a predetermined thickness, and support arms are formed at opposite sides of the base member 71 to protrude rearwardly so as to form a sliding groove 74 under the base member 71.
The support arms extend such that ends thereof are bent in directions in which they get close to each other so as to prevent the base member 71 from being separated from the rail 33.
Each of the first and second support plates 72 and 73 is shaped of a plate having a predetermined thickness and has a trapezoidal shape to facilitate installation of the first and second holding arms 80 and 90 and rotating member 95, but the present invention does not limit the shapes of the first and second support plates 72 and 73 to those illustrated herein. Rather, the first and second support plates 72 and 73 may have various shapes.
One end of the first holding arm 80 is hingedly coupled by a first hinge shaft 89a between the first and second support plates 72 and 73. The first holding arm 80 includes a first holding part 81 and a second holding part 82. The first holding part 81 is formed to extend in a direction away from the base member 71 in view of the first hinge shaft 89a. The second holding part 82 is formed to extend at i an end of the first holding part 81 and is formed to be inclined toward the first hinge shaft 89a with a predetermined angle with respect to an extending direction of the first holding part 81.
Since the second holding part 82 is inclined with a predetermined angle with respect to the first holding part 81, a contact area of the first holding arm 80 with the recessed outer circumferential surface of the rod 50 can be increased.
One end of the second holding arm 90 is hingedly coupled at a position spaced apart from the first hinge shaft 89a of the first holding arm 80 by the second hinge shaft 89b formed in parallel with the first hinge shaft 89a. The second holding arm 90 includes a third holding part 91 and a fourth holding part 92. The third holding part 91 is formed to extend in a direction away from the base member 71 in view of the second hinge shaft 89b The fourth holding part 92 is formed to extend at an end of the third holding part 91 and is formed to be inclined toward the second hinge shaft 89b with a predetermined angle with respect to an extending direction of the third holding part 91.
Since the fourth holding part 92 is inclined with a predetermined angle with respect to the third holding part 91, a contact area of the second holding arm with the recessed outer circumferential surface of the rod 50 can be increased.
Meanwhile, the first and second holding arms 80 and 90 include a plurality of frictional protrusions 85 protruding on inner circumferential surfaces facing each other. A friction applied to the rod 50 can be increased by the frictional protrusions 85, thereby improving holding forces of the first and second holding arms 80 and 90 with respect to the rod 50.
The actuator 95 includes a first cylinder 96 and a second cylinder 97. One end of the first cylinder 96 is rotatably installed at an end of the first holding arm 80, and the other end of the first cylinder 96 is rotatably installed at the other end of the first holding arm 80 between the first and second support plates 72 and 73 facing the one end. One end of the second cylinder 97 is rotatably installed at an end of the second holding arm 90, and the other end of the second cylinder 97 is rotatably installed between the first and second support plates 72 and 73 facing the one end.
The first and second cylinders 96 and 97 are preferably hydraulic pressure actuators operating by being supplied with a hydraulic pressure from the hydraulic pressure supply unit 22 of the body 20.
One end of the moving unit 75 is fixed to the bottom surface of the base member 71 and the other end of the moving unit 75 is formed to upwardly extend in a lengthwise direction of the leader 30. The moving unit 75 includes an extending member 76 and an interfering member 77. The extending member 76 is installed to allow the head unit 40 to be movable relative thereto, and the interfering member 77 is installed at an end of the extending member 76 and is interfered by the head unit 40 so as to move the holding unit 60 when the head unit 40 moves.
The extending member 76 is shaped of a plate having a predetermined thickness and is inserted and penetrated into the penetration path of the head unit 40 moving along the lengthwise direction of the leader 30. When the head unit is lowered along the rod 50, even if the holding unit 60 is brought into contact with the ground or the rod clamp 32 to stop being lowered, the head unit 40 is moved relative to the extending member 76, thereby preventing the extending member or the head unit 40 from being damaged.
The interfering member 77 forwardly protrudes at a top end of the extending member 76 having penetrated through the head unit 40 so as to be interfered by the top surface of the head unit 40. Here, the interfering member 77 is preferably formed to have a width greater than that of the penetration path so as to prevent the extending member 76 from being separated from the head unit 40 through the penetration path of the head unit 40.
The operation of the aforementioned boring machine 10 according to the present invention will now be described in detail.
In order to connect a new rod to the top end of the rod 50 inserted into the ground surface through the boring work performed by the excavation member 51, the head unit 40 is first separated from the rod 50 held by the rod clamp 32.
The head unit 40 separated from the rod 50 is upwardly elevated along the leader 30, and the holding unit 60 is also elevated by the moving unit 75 together with the head unit 40.
Next, the new rod 50 is connected to the driving shaft 45 of the head unit 40. If the connection of the rod 50 with the head unit 40 is completed, the first and second cylinders 96 and 97 are operated to rotate the first and second holding arms 80 and 90 so as to move the other ends of the first and second holding arms =
80 and 90 to get close to each other.
As the first and second cylinders 96 and 97 are operated, the rod 50 is brought into the contact with inner surfaces of the first and second holding arms 80 and 90, the first and second holding arms 80 and 90 hold the outer circumferential surface of the rod 50 by the hydraulic pressure supplied to the first and second cylinders 96 and 97 If the operation of the holding unit 60 holding the rod 50 is completed, the operator lowers the head unit 40 in the lengthwise direction of the leader 30.
Here, the holding unit 60 is lowered together with the rod 50 and prevents the rod from shaking when the head unit 40 moves.
If the coupling protrusion 52 of the new rod 50 is inserted into the connection unit of the rod 50, the head unit 40 is threaded to the rod 50 inserted into the ground surface by rotating the new rod 50. Here, the first and second cylinders 96 and 97 are operated such that the other ends of the first and second holding arms 80 and 90 are away from each other, thereby cancelling a holding state in which the holding unit 60 holds the rod 50.
If connection of the rod 50 is completed, a hydraulic pressure is supplied to the excavation member 51 to resume a boring operation performed on the ground surface. Here, since the head unit 40 is movably installed relative to the extending member 76 of the moving unit 75, even if the head unit 40 is lowered to be in the vicinity of the ground surface, it is possible to prevent the head unit 40 from being interfered by the moving unit 75.
As described above, in the boring machine 10 according to the present invention, since the rod 50 coupled with the head unit 40 is guided by the holding unit 60 and is coaxially positioned with the head unit without shaking, an operating time can be shortened by facilitating a boring work of the rod and a new rod connecting work.
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 scope of the exemplary embodiments of the present invention as defined by the appended claims.
Claims (3)
1. A boring machine comprising:
a body;
a leader that is supported by the body;
a head unit that is moved along a lengthwise direction of the leader, and has a driving shaft coupled with a rod;
a holding unit that is slidably installed on the leader along a lengthwise direction, and supports or holds the rod coupled with the head unit; and a moving unit that moves the holding unit by an elevating force of the head unit, wherein the holding unit includes a housing slidably installed along the lengthwise direction of the leader, the first and second holding arms spaced apart from each other, having one ends rotatably installed at the housing along a direction crossing the lengthwise direction of the leader, and extending in parallel with each other to provide a holding space into which the rod is inserted, and an actuator rotating the first and second holding arms to allow the other ends thereof to get close to each other to hold the rod inserted into the holding space, wherein the first holding arm includes a first holding part and a second holding part, the first holding part being hingedly coupled to the housing and being formed to extend in a direction away from the housing, and the second holding part being formed to extend at an end of the first holding part and being inclined toward the holding space of the rod with a predetermined angle with respect to an extending direction of the first holding part, wherein the second holding arm includes a third holding part and a fourth holding part, the third holding part being hingedly coupled to the housing and being formed to extend in a direction away from the housing and, the fourth holding part being formed to extend at an end of the third holding part and being inclined toward the holding space of the rod with a predetermined angle with respect to an extending direction of the third holding part, and wherein the actuator comprises a first cylinder and a second cylinder, one end of the first cylinder being rotatably installed at an end of the first holding arm and the other end of the first cylinder being rotatably installed at the housing, and one end of the second cylinder being rotatably installed at an end of the second holding arm and the other end of the second cylinder is rotatably installed at the housing.
a body;
a leader that is supported by the body;
a head unit that is moved along a lengthwise direction of the leader, and has a driving shaft coupled with a rod;
a holding unit that is slidably installed on the leader along a lengthwise direction, and supports or holds the rod coupled with the head unit; and a moving unit that moves the holding unit by an elevating force of the head unit, wherein the holding unit includes a housing slidably installed along the lengthwise direction of the leader, the first and second holding arms spaced apart from each other, having one ends rotatably installed at the housing along a direction crossing the lengthwise direction of the leader, and extending in parallel with each other to provide a holding space into which the rod is inserted, and an actuator rotating the first and second holding arms to allow the other ends thereof to get close to each other to hold the rod inserted into the holding space, wherein the first holding arm includes a first holding part and a second holding part, the first holding part being hingedly coupled to the housing and being formed to extend in a direction away from the housing, and the second holding part being formed to extend at an end of the first holding part and being inclined toward the holding space of the rod with a predetermined angle with respect to an extending direction of the first holding part, wherein the second holding arm includes a third holding part and a fourth holding part, the third holding part being hingedly coupled to the housing and being formed to extend in a direction away from the housing and, the fourth holding part being formed to extend at an end of the third holding part and being inclined toward the holding space of the rod with a predetermined angle with respect to an extending direction of the third holding part, and wherein the actuator comprises a first cylinder and a second cylinder, one end of the first cylinder being rotatably installed at an end of the first holding arm and the other end of the first cylinder being rotatably installed at the housing, and one end of the second cylinder being rotatably installed at an end of the second holding arm and the other end of the second cylinder is rotatably installed at the housing.
2. The boring machine of claim 1, wherein the moving unit comprises:
an extending member extending along the lengthwise direction of the leader from the housing of the holding unit and installed to allow the head unit to be movable relative thereto; and an interfering member installed at an end of the extending member and interfered by the head unit so as to move the holding unit when the head unit moves.
an extending member extending along the lengthwise direction of the leader from the housing of the holding unit and installed to allow the head unit to be movable relative thereto; and an interfering member installed at an end of the extending member and interfered by the head unit so as to move the holding unit when the head unit moves.
3. The boring machine of claim 2, wherein the holding unit further comprises a plurality of frictional protrusions protruding on inner surfaces of the first and second holding arms facing each other to improve forces of the first and second holding arms holding the rod.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0014587 | 2011-02-18 | ||
| KR1020110014587A KR101313318B1 (en) | 2011-02-18 | 2011-02-18 | Excavator |
| PCT/KR2012/001281 WO2012112016A2 (en) | 2011-02-18 | 2012-02-20 | Boring machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2827458A1 CA2827458A1 (en) | 2012-08-23 |
| CA2827458C true CA2827458C (en) | 2015-12-01 |
Family
ID=46673074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2827458A Active CA2827458C (en) | 2011-02-18 | 2012-02-20 | Boring machine |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR101313318B1 (en) |
| CA (1) | CA2827458C (en) |
| WO (1) | WO2012112016A2 (en) |
| ZA (1) | ZA201306938B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101942552B1 (en) * | 2016-11-10 | 2019-01-25 | (주)대우건설 | Ground mixing and boring machine having telescopic lead unit |
| CN109826134A (en) * | 2019-02-26 | 2019-05-31 | 南京金长江交通设施有限公司 | A kind of multifunctional all-hydraulic highway anti-collision guardrail, which is beaten, pulls out brill integrated vehicle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200256296Y1 (en) * | 2001-07-20 | 2001-12-13 | 오수정 | A road clamp for a earth-boring machine |
| JP4322756B2 (en) * | 2004-09-02 | 2009-09-02 | 古河機械金属株式会社 | Drilling device rod changer |
| KR100916667B1 (en) * | 2007-12-06 | 2009-09-08 | 인석신 | Excavator |
-
2011
- 2011-02-18 KR KR1020110014587A patent/KR101313318B1/en active IP Right Grant
-
2012
- 2012-02-20 WO PCT/KR2012/001281 patent/WO2012112016A2/en active Application Filing
- 2012-02-20 CA CA2827458A patent/CA2827458C/en active Active
-
2013
- 2013-09-16 ZA ZA2013/06938A patent/ZA201306938B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| KR101313318B1 (en) | 2013-09-30 |
| WO2012112016A2 (en) | 2012-08-23 |
| KR20120095113A (en) | 2012-08-28 |
| CA2827458A1 (en) | 2012-08-23 |
| WO2012112016A3 (en) | 2012-11-01 |
| ZA201306938B (en) | 2014-06-25 |
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Effective date: 20130814 |