JP2876465B2 - Deep boring equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deep boring device which can feed a long drill rod (hereinafter, referred to as a rod) to drill a deep portion.

[0002]

2. Description of the Related Art Conventionally, deep boring is performed by using a rotary table, a winch, and an assembly type scaffold.

[0003]

However, when a rotary table is used, a Cary rod is used, and only rotation is given to the Cary rod. The Kelly rod sinks and drills by its own weight. However, it was not possible to raise the rods in rapid succession.

[0004] In addition, when a winch and an assembly type scaffold are used, assembling the scaffold takes days and involves dangerous work at a high place. In addition, the attaching and detaching work of the rod requires a worker at the upper part of the tower to work at a high place, and not only the worker at the upper part of the tower but also the auxiliary worker is required to attach and detach the rod screw on the ground.

The present invention has been made in view of the above-mentioned circumstances, and provides a deep boring apparatus which requires a small number of workers and is efficient in the entire excavation work.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a boring apparatus for drilling a ground by raising and lowering a drill head along a mast, comprising a drill head feeder, a rod breaker, and a rod positioner. The drill head feeder has two rod cylinders disposed in the front-rear direction in a rectangular frame disposed on the base, and the front and rear ends of the piston rods are fixed front and rear in the frame, and A pulley moving device in which a mounting base is disposed in a substantially central lateral direction, and a cylinder moves forward and backward along the piston rod,
A plurality of pulleys pivotally mounted at symmetrical positions before and after the mounting base in both rod cylinders of the pulley moving device, and a plurality of pulleys pivotally mounted at symmetrical positions at the rear in the frame. A pulley pivotally mounted at least one at each of the left and right symmetrical positions in the front of the frame, and two pulleys at each of the left and right symmetrical positions of a mast tilting axis attached to a hinge disposed at the front of the base. A pivotally attached pulley, a lower rear portion is pivotally attached to the mast raising / lowering axis at the front of the base, and a mast that can be tilted down by a raised cylinder, and a pair of left and right sides are pivotally attached to an upper end and a lower end of the mast. The pulling rope fixed to the upper end of the drill head passes through the pulley at the upper end of the mast and the pulley of the mast raising / lowering axis, and is passed over the pulley at the rear in the frame and the pulley at the rear of the mounting base. After that, the rope end is fixed rearward in the frame, and the pull-down rope fixed to the lower end of the drill head passes through the pulley of the lower end of the mast and the pulley of the mast raising / lowering axis, and the pulley in front of the mounting base and the pulley in the frame. After being passed over the front pulley, the rope end is fixed forward in the frame, and the rod breaker portion is disposed in front of the lower end of the mast, and has a pair of clamp cylinders for gripping and opening the rod back and forth. A set of rod clamps and a pair of clamp cylinders disposed on the front side of the mast immediately above the rod clamps for gripping and releasing the rods are disposed before and after the breaker body,
A pair of breaker cylinders that pivot the breaker body at a predetermined angle while the rod is gripped, and a rod breaker pivotally attached to the left and right, wherein the rod positioner portion is fixed to a front end of a base. An arm pivotally mounted on the frame, a raise cylinder for raising and lowering the arm from substantially horizontal to a vertical parallel to the mast, and a U-shape disposed forward and backward on the arm and having the upper side of the opposite arm released. A pair of chuck cylinders are disposed on both sides of the U-shaped groove, and a pair of rod holding devices for gripping and releasing a rod passing through a U-shaped groove in front and back are provided.

[0007] The pair of rod holding devices are rotatably pivoted at their lower ends on an arm via a joint shaft, and are tilted 90 degrees left and right by rotary actuators at both ends of the joint shaft. I have.

Further, of the pair of rod holding devices,
A pair of left and right roller brackets project from the rod holding device at the front end, and when the rod positioner section stands upright, it comes into contact with the front surface of the mast to position the rod vertically.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a perspective view showing a relationship between a pulley and a rope of a drill head feeding section showing an embodiment of the present invention, and FIG.
FIG. 4 is a plan view of a rod clamp of a rod breaker part, showing an embodiment of the present invention. FIG. 4 is a plan view of a rod breaker of a rod breaker part, showing one embodiment of the present invention. FIG. 6 is a side view of a rod positioner unit, showing one embodiment, FIG. 6 is a front view of a rod positioner unit, showing one embodiment of the present invention, and FIG. 7 is a rod at the front end of an arm, showing one embodiment of the present invention. It is an enlarged side view of a holding device.

The present invention, as shown in FIG.
, A rod breaker portion B disposed in front of the lower end of the mast 20, and a base 10.
And a rod positioner portion C pivotally attached to a positioner frame 91 fixed to the front end of the rod. The drill head feeding section A is described in Japanese Patent Application No.
As disclosed in Japanese Patent Application Laid-Open No. 203874/1993, the present invention relates to a combination of a drill head feeding section A, a rod breaker section B, and a rod positioner section C, whereby a deep rod using a long rod is used. It is intended to save labor for operating a boring device.

In FIG. 1, the mast 20 can be tilted about a mast tilting shaft 7a by a tilting cylinder 7. A rectangular frame 11 is provided on the base 10,
Both rod cylinders 30 are disposed in the front-rear direction, front and rear ends 32 and 33 of the piston rod 31 are fixed to the front and rear in the frame 11, and a mounting base 35 is disposed substantially in the lateral direction substantially at the center of the cylinder 34. Thus, a pulley moving device is formed.

Two pulleys 51 are pivotally connected to the front symmetrical position of the mounting base 35, and two pulleys 52 are also pivotally connected to the rearward symmetrical position, and both rod cylinders 30 are driven. Then, it moves forward and backward together with the mounting base 35. In addition, two pulleys 54 are pivotally mounted at the rear left and right symmetric positions in the frame 11, and one pulley 53 is pivotally mounted at the front left and right symmetric positions.
A pair of left and right hinges 12 provided at the front of the base 10 is provided with a mast raising / lowering shaft 7a.
The two pulleys 55 are pivotally mounted at symmetrical positions.

A pair of right and left pulleys 56 and 57 are pivotally attached to the upper and lower ends of the mast 20, respectively. In FIG. 1, reference numeral 40 denotes a drill head, and a pulling rope 61 and a pulling rope 62 are fixed to upper and lower ends, respectively. In FIG. 2, reference numeral 41 denotes a table to which a drill head is attached. In this embodiment, the base 10 is of a stationary type installed on the ground, but may be a traveling type in which the base 10 can be mounted on a vehicle and run.

A state in which the rope is wound around the pulley will be described with reference to FIG. A pair of ropes moves the drill head symmetrically, but one rope will be described.
The lifting rope 61 fixed to the upper end of the drill head base 41 passes under the pulley 56 of the mast head and one of the pair of pulleys 55 of the mast raising / lowering shaft 7a, and is connected to the rear of the frame 11 by two pulleys.
The rope ends are fixed 63 to the rear of the frame after being spanned between the two pulleys 52 behind the two pulleys 54 and the mounting base 35.

A pulling rope 62 fixed to the lower end of the drill head base 41 is connected to a pulley 57 at the lower part of the mast 20.
And two pulleys 51 in front of the mounting base 35, passing over the other one of the pair of pulleys 55 of the mast elevating shaft 7a, and the frame 11
The rope end after being passed over one pulley 53 in front is frame 1
It is fixed 64 forward in 1. Double rod cylinder 30
When the cylinder 34 (FIG. 1) moves forward from the state of FIG. 2 by driving (FIG. 1), the mounting base 41 of the drill head 40 is raised. Conversely, when the cylinder moves backward, the drill head 4
Zero is fed down. In this case, when the mounting base 35 moves a distance of a, the drill head 40 moves a distance of a × 4 depending on the combination of pulleys.

The drill head feeding portion A of the present invention
Pulleys 51, 52, 5 attached to the inside and to the mounting base 35
By increasing the number of 3, 54, the ratio of the moving distance of the drill head 40 to the moving distance of the mounting base 35 can be increased more than in the present embodiment.

The mast 20 has a mast raising / lowering axis 7a.
The wire rope is not abnormally stretched or loosened when the mast 20 is raised and lowered since the sheave 55 for changing the direction of the rope is provided on the shaft 7a.

Next, the rod breaker section B shown in FIG. 1 includes a rod clamp 70 shown in FIG. 3 and a rod breaker 80 shown in FIG. And the rod clamp 7
Reference numeral 0 denotes a front and rear two-part clamp body 72a, 72b pivotally mounted on the front side of the lower end of the mast 20 via pins 71, 71, as shown by a two-dot chain line.
Is openable. Further, the clamp cylinders 73 are respectively attached to the front and rear clamp bodies 72a and 72b.
a, 73b are fixed and configured to grip and release the rod.

In the rod breaker 80, a breaker frame 82 is pivotally mounted via pins 81, 81 on the front side of the mast 20 immediately above the rod clamp 70, and the breaker frame 82 is divided into two front and rear breaker bodies 83a, 83a.
83b is provided, and the breaker body 83
a and 83b are pivotally supported by a pair of left and right breaker cylinders 84a and 84b extending from the rear end of the breaker frame 82. As shown by the two-dot chain line, the breaker bodies 83a and 83b can open the front breaker body 83a. In addition, the front and rear breaker bodies 83
a and 83b have clamp cylinders 85a and 85, respectively.
5b is fixed, and is configured to grip and release the rod. With the rod held by the clamp cylinders 85a and 85b, a pair of breaker cylinders 84a and 84
By expanding and contracting b in opposite directions, the breaker bodies 83a and 83b are configured to rotate by a predetermined angle.

When the rod after drilling is lifted, the joint between the upper and lower rods is connected to the rod breaker 80 and the rod clamp 7.
0, and the lower rod is
The upper rod is gripped by the rod breaker 80, respectively, and the breaker cylinders 84a and 84b are operated to loosen the joint screws so that the breaker bodies 83a and 83b of the rod breaker 80 are loosened.
Rotate 83b to loosen the joint screw.

Next, the rod positioner C shown in FIG.
As shown in FIG. 5, a positioner frame 91 is fixed to the front end of the base 10, and an arm 93 is pivotally attached to the positioner frame 91.
The raise cylinder 94 is configured to fall from substantially horizontal to a vertical state parallel to the mast 20 indicated by a two-dot chain line in FIG. A pair of rod holding devices 95, 95 are pivotally supported via a joint shaft 96 on the front and rear sides of the arm 93, and a pair of rotary actuators 97, 97 are mounted on both ends of the joint shaft 96. ing. As shown in FIG. 7, a chuck case 95b rotatably supported by a metal bracket 95a.
Are keyed to the joint shaft 96, and the rotary actuators 97, 97 are operated so that when the joint shaft 96 rotates, the joint shaft 96 is rotated 90 degrees to the left and right.

A U-shaped groove 95 is formed in the chuck case 95b.
c is formed, and the rod 92 passing through the groove 95c is
A pair of chuck cylinders 95d, 95d on both sides of c are gripped and released. Of the pair of rod holding devices 95, 95, a pair of roller brackets 95e, 95e protrude from the upper surface of the chuck cylinders 95d, 95d of the front end rod holding device 95. The rod 92 is configured to be positioned in the vertical direction by contacting the front surface of the mast 20.

However, the roller brackets 95e, 95
e, the rod 92 may be positioned in the vertical direction by a sensor or the like.

Next, the operation of the rod extension and the extubation and withdrawal of the rod by the apparatus of the present invention will be described. Rod extension is performed as follows. First, as shown in FIG.
The tilting cylinder 7 raises the rod 92 from the nearly horizontal state shown by the dashed-dotted line to the rod holding device 95 of the rod positioner section C to hold the rod 92. In order to add the rod 92, in the case of an apparatus without the roller brackets 95e and 95e as described above, the rod 9 is mounted on a table (not shown) provided on the side of the rod positioner section C.
2, and one of them is dropped into the U-shaped groove 95c from above. However, in the case of the rod holding device 95 in which the roller brackets 95e, 95e are mounted, the roller brackets 95e, 95e become an obstacle. , Claim 2
According to the configuration of the present invention, the pair of rod holding devices 95, 95
Is tilted 90 degrees in the direction of the table, and the rod 92 is held from the side, and then returned 90 degrees vertically.

Next, the rod positioner portion C is raised vertically, the drill head 40 is lowered, and the drill head 40 is driven to connect the upper end of the rod 92 to the thread portion of the spindle rod sub.

Next, the lower end of the rod 92 is connected to the rod 92 that has already been drilled in the ground and only the upper part is present on the ground. The above operation is repeated to continuously drill holes to a deep part. A long rod of 6 m is used (1 to 3 m is used for a normal boring device).

The extubation and withdrawal of the rod is performed as follows. First, when the drill head 40 is pulled up, the rod rises, and the upper rod 92 connected to the drill head 40 is raised.
When the seam between the rod and the lower rod 92 is located between the rod breaker 80 and the rod clamp 70 of the rod breaker part B, the lifting is stopped, and both clamp cylinders 85
a, 85b, 73a, and 73b are operated to grip the rod 92, and the breaker cylinder 84 of the rod breaker 80 is operated.
a, 84b is actuated to twist the upper rod 92 to loosen the seam between the upper and lower rods 92,92.

Next, while the drill head 40 is driven to rotate the upper rod 92, the loose screw portion is completely cut off, and the rod 92 is pulled up.

Next, raise the rod positioner section C,
The upper rod 92 is gripped, and the drill head 40 is driven to separate the drill head 40 from the rod 92.

Next, the rod positioner section C is tilted horizontally, the rod holding devices 95, 95 are tilted 90 degrees to the side of the table, and the rods 92 of the rod holding apparatuses 95, 95 are rolled on the table. The above operation is repeated, and the rod is successively pulled up from the deep part to the ground and extubated.

The above operation can be performed by a total of two workers, one for switch operation on the control unit and one for putting the rod into and out of the rod positioner.

[0032]

According to the present invention described in detail above, the following effects can be obtained. (1) In the case of the conventional winch and assembling type wagon, the required workers are one on the wagon, one on the winch, one on the rod under the rod, one on the rod, and one on the switches.
Although a total of four workers (three to four in the case of a rotary table) were required, the apparatus of the present invention requires only two workers, thereby saving labor. (2) Since the handling of the rod and the connection of the rod are performed automatically, no intensive work is required. In particular, according to the structure of the second aspect, the rod can be rolled into the rod positioner from the side, so that a further less force is required.

(3) The handling of the rods and the connection of the rods are performed automatically and are not performed by hand as in the prior art, so that the efficiency of the entire operation is improved. Furthermore, it is possible to pull up the mast at a stretch while rotating the long rod, and it is possible to pull up a plurality of rods rapidly and continuously. (4) When the rod positioner is upright, the rollers are configured to abut the front surface of the mast to determine the position of the rod in the vertical direction. Addition and removal work can be performed easily.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a perspective view illustrating a relationship between a pulley and a rope of a drill head feeding unit according to the embodiment of the present invention.

FIG. 3 is a plan view of a rod clamp of a rod breaker, showing one embodiment of the present invention.

FIG. 4 is a plan view of the rod breaker of the rod breaker unit, showing one embodiment of the present invention.

FIG. 5 is a side view of the rod positioner, showing one embodiment of the present invention.

FIG. 6 is a front view of a rod positioner unit showing one embodiment of the present invention.

FIG. 7 is an enlarged side view of the rod holding device at the front end of the arm, showing one embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List A drill head feeding section B rod breaker section C rod positioner section 7 tilting cylinder 7a mast tilting shaft 10 base 11 frame 12 hinge 20 mast 30 double rod cylinder 31 piston rod 32 front end 33 rear end 34 cylinder 35 mounting table 40 drill 41 heads 51, 52, 53, 54, 55, 56, 57 Pulley 61 Lifting rope 62 Retraction rope 63, 64 Fixing 70 Rod clamp 73 a, 73 b, 85 a, 85 b Clamp cylinder 80 Rod breaker 82 Breaker frame 83 a, 83b Breaker body 84a, 84b Breaker cylinder 91 Positioner frame 92 Rod 93 Arm 94 Raise cylinder 95 Rod holding device 95c Groove 95d Chuck cylinder 95e Roller bracket 96 Joint Yafuto 97 rotary actuator

Claims (3)

(57) [Claims] 1. A drill head is moved up and down along a mast,
In a boring device for drilling a ground, the drilling device includes a drill head feeding unit, a rod breaker unit, and a rod positioner unit, wherein the drill head feeding unit extends in a front-rear direction within a rectangular frame disposed on a base. Both rod cylinders are arranged, the front and rear ends of the piston rods are fixed to the front and rear in the frame, and a mounting base is arranged in a lateral direction substantially at the center of the cylinder, and the cylinder is moved along the piston rod. A pulley moving device that moves forward and backward; a plurality of pulleys pivotally mounted at left and right symmetric positions before and after the mounting base in both rod cylinders of the pulley moving device; A plurality of pulleys attached, at least one pulley pivotally attached to each of the left and right symmetrical positions in the front of the frame, and a hinge disposed at a front portion of the base. Two pulleys each pivotally attached to the left and right symmetrical positions of the attached mast raising and lowering axis; and a mast pivotally connected to the mast raising and lowering axis at the front of the base and lower and rearward by the raised cylinder. And a pulley having a pair of left and right pivots attached to the upper end and the lower end of the mast, respectively. After being passed over the pulley on the rear side of the frame and the pulley on the back of the mounting stand, the rope end is fixed to the rear side of the frame, and the pull-down rope fixed to the lower end of the drill head is connected to the pulley at the lower end of the mast and the pulley. After passing through the pulley of the mast raising / lowering axis and passing over the pulley in front of the mounting base and the pulley in the front of the frame, the rope end is fixed to the front of the frame, and the rod breaker portion is disposed in front of the lower end of the mast. Are set up and A rod clamp provided with a pair of clamp cylinders for gripping and releasing the rod, and a pair of clamp cylinders disposed on the front side of the mast immediately above the rod clamp and gripping and releasing the rod are provided in front and behind the breaker body. A pair of breaker cylinders that pivot the breaker body by a predetermined angle while the rod is gripped, and a rod breaker pivotally mounted on the left and right, wherein the rod positioner portion is fixed to a front end of a base. An arm pivotally mounted on the position frame, a raise cylinder that raises and lowers the arm from substantially horizontal to a vertical direction parallel to the mast, and disposed above and below the arm, and the upper side of the opposite arm is released. A pair of chuck cylinders are disposed on both sides of the U-shaped groove, and a pair of rod holding devices for gripping and releasing a rod passing through the U-shaped groove in front and back. Deep boring device, characterized in that comprises a. 2. The pair of rod holding devices are configured such that lower ends thereof are rotatably pivotally mounted on an arm via a joint shaft, and are tilted 90 degrees left and right by rotary actuators at both ends of the joint shaft. The deep boring apparatus according to claim 1, wherein 3. A pair of roller brackets projecting right and left from a front end of the pair of rod holding devices, and when the rod positioner portion is in an upright position, it comes into contact with the front surface of the mast to vertically move the rod. 3. The deep boring device according to claim 2, wherein the boring device is configured to perform directional positioning.