JPH07238774A - Detachable device for double pipe type trill tool - Google Patents

Abstract

PURPOSE:To supply a drilling machine with a double pipe type drill tool, and to mount and dismantle the drill tool. CONSTITUTION:A take-up unit 3 extracting drill tools 4 one by one from a tool rack 10 and supplying a handling unit 2 with the drill tools 4 and the handling unit 2 consisting of a casing hand 2A gripping a casing tube 4A and a rod hand 2B gripping an inner rod 4B are mounted on a moving truck 100. The handling unit 2 is moved freely in the direction of the drill tools 4 and rotated freely by a torque actuator 66 while the rod hand 2B can be retreated from the drill tools 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double pipe drill tool attaching / detaching device for supplying a double pipe type drill tool to a drilling machine and attaching / detaching the same.

[0002]

2. Description of the Related Art Conventionally, when drilling holes in anchor construction, etc., the wall of the hole is loose, the grout material is convenient to fill, and the hole wall tends to be unstable because it is often an oblique hole. Double pipe digging using a casing tube is performed because it is easy to raise.

In such a drilling work, a drill tool consisting of an inner rod and a casing tube is sequentially supplied to a drilling machine and connected to the rear end of the drill tool which has already penetrated into the ground to penetrate into the ground. The operation of supplying such a drill tool is performed manually. Further, the recovery work after the completion of perforation is also manually performed.

In recent years, various rod attaching / detaching devices have been proposed for mechanizing the attaching / detaching work to / from such a punching machine, but the transport of the drill tool and the supply of the drill tool to the rod attaching / detaching device are still performed manually. There is.

[0005]

However, since the drill tool is a heavy object, it is a labor-intensive task to manually transfer the drill tool to a predetermined drilling location and supply it to the drilling machine. Has become.

On the other hand, in the case of the attaching / detaching device for the double pipe type drill tool, since the structure is such that the casing tube and the inner rod are normally gripped separately, when the delivery to the attaching / detaching device is performed, the inner pipe It is necessary to supply a part of the inner tube protruding from the outer tube, which makes it difficult to pull out the inner rod inserted inside by a predetermined amount. Also, with the danger of pinching your fingers,
There is also a problem that the amount of protrusion of the inner rod tends to vary. Further, a drill tool can be stored in a storage rack in a smaller volume when stacked in a close packed state, but it is generally adopted to take out one drill tool from this close packed state. With a gripping structure that grips the outer surface of the pipe, the adjacent drill tools cannot obstruct the removal.

Further, even when the drill tools are supplied to the drilling machine by using the attaching / detaching device, when the drill tools are connected to each other, the rotating mechanism of the drill head is used to connect the drill tools. Therefore, it is necessary to perform the operation on the attachment / detachment device side and the operation on the drill head side for rotation / forward / backward separately and in cooperation with each other, and the operation is also complicated. Further, there is a problem that the connecting / disconnecting work is not efficient.

In view of the above-mentioned problems, the main problem of the present invention is that the drill tools can be easily taken out one by one from the group of drill tools stacked in a densely packed state, and the inner pipes can be attached to a drill tool attaching / detaching device or the like. It can be supplied with a predetermined amount protruding to one side, and can be connected / disconnected from the drill head by operating the attachment / detachment device side, and the attachment / detachment of the double pipe type drill tool with good operability and workability. A device is provided.

[0009]

Means for Solving the Problems The above-mentioned problems are fixed to a traveling carriage; an X-axis drive unit for holding an X-axis beam arranged in the X-axis direction so as to be movable along the beam axis direction is fixed. A Y-axis drive unit that holds the Y-axis beam disposed in the Y-axis direction movably along the beam-axis direction is fixed to one end of the X-axis beam, and one end of the Y-axis beam in the Z-axis direction is fixed. A Z-axis drive unit that holds the disposed Z-axis beam movably along the beam axis direction is fixed, and further, a bracket is fixed to the lower end of the Z-axis beam so as to project laterally. A slide body that is movable along the protruding direction of the bracket is provided on the lower surface side of the bracket, and a seesaw-shaped slide is provided along the protruding direction of the bracket by pivotally supporting a vertically extending piece fixed to the lower surface of the slide body. Providing a swing member, An operation control means for controlling the swinging motion of the swinging member is provided on the arm of the swinging member on the tip side in the bracket extension direction, and the base end side arm of the swinging member is moved inside the outer pipe by the movement of the slide body. At the same time as inserting into the outer tube, the proximal end side arm pushes out the inner tube to the opposite side, and the tubular body gripping portion that holds the tube wall portion of the outer tube by the proximal end side arm inserted into the outer tube and the Z axis beam lower end. A take-up unit having one end, and one end is pivotally supported on the traveling carriage side, and a boom which can be lifted up and down is provided, and one end is pivotally supported on the other end side of the boom and a rotatable arm is provided. On the side, a handling unit consisting of an outer pipe hand and an inner pipe hand is supported by a slide rail arranged in the drill tool direction to be movable in the drill tool axial direction, The Lumpur can be solved by supported by rotation support body for rotatably supporting the axis perpendicular to the slide rail direction in forward and reverse directions.

In the handling unit, two links are rotatably provided in parallel on the side of the hand base portion that supports the outer pipe hand, and the inner links are provided at the other ends of the two links. A direction in which a pipe hand is provided and a cylinder that connects one of the two links to the outer pipe hand base portion is arranged, and the inner pipe hand is separated from the drill tool by the link rotation operation by the expansion and contraction operation of the cylinder. At least three rollers are provided at appropriate intervals in the circumferential direction of the tubular body at the gripping portions of the outer pipe hand and the inner pipe hand, and the tubular body is brought into contact with these roller groups. Is supported by at least one of the rollers, and at least one of the rollers is rotatable in the forward and reverse directions by a driving means. You can store a lot of drill tools with less volume by providing a rack.

[0011]

In the present invention, the arm on the proximal end side of the swinging member is configured to be insertable into and removable from the outer tube. Therefore, an arbitrary drill tool is fixed in a pressed state by the lower end of the Z-axis beam, the slide body is moved to insert the proximal arm of the swing member into the outer tube, and the operation of the cylinder or the like for controlling the swing operation is performed. When the base end side arm is pushed upward by the above, the tube wall portion of the outer tube is sandwiched by the lower end of the Z axis beam. Therefore, even if the drill tools are stacked in a dense state, they can be easily taken out one by one.

Further, when the base end arm is inserted, the inner pipe is pushed out at the tip of the base end arm. Therefore, for example, when the base pipe is handed over to the attachment / detachment device or the like, the end part of the outer pipe is removed. It can be supplied with the inner tube protruding by a fixed amount (arm length). In addition, even when the attachment / detachment to / from the punching machine is performed manually, the inner tube can be received in a protruding state, and therefore the setting on the punching machine becomes easy.

Further, in the moving device, since the beams arranged in the X, Y, and Z axis directions are respectively movable in the beam axis directions, the drill tool held by the tube gripping portion can be arbitrarily moved. Can be moved to a position.

On the other hand, the handling unit makes the inner pipe hand movable in the direction away from the drill tool from the inner pipe gripping position. Therefore, when gripping the drill tool, the outer pipe hand can be gripped by the outer pipe hand without having to worry about the inner pipe hand by first retracting the inner pipe hand. Can be moved to grip the inner tube. Also, when collecting the drill tool, the casing tube, which is the outer tube, and the inner rod, which is the inner tube, are removed separately at different times, so it is sufficient to use only one hand, and the two tube body gripping parts If they are lined up, they will come back and get in the way. Therefore,
In collecting the drill tool, the casing tube and the inner rod are collected only by the outer pipe hand while the inner pipe hand is retracted.

Further, by supporting the handling unit by the rotary support, the drill tool can be tilted in the drilling direction.

Further, at least three gripping portions of the outer pipe hand and the inner pipe hand are provided at appropriate intervals in the circumferential direction of the pipe body.
The above rollers are arranged so that the gripping tubular body is supported by the roller group in an abutting state, and at least one of the roller group is rotatable in the forward and reverse directions by the driving means. The handling unit can move along the slide rail in the axial direction of the Dritz tool. Therefore, while the drill head of the drilling machine is stopped, the pipe body can be supplied to the drilling machine and rotated while holding the drill tool to be connected to the drill head. Also, at the time of collection,
After gripping the tubular body, the tubular body can be removed by moving the tubular body in the direction of separation along with the rotation of the tubular body.

On the other hand, since each of these units including the tool rack is integrally attached to the movable carriage, the detachable device 1 is used for moving, supplying, and connecting and recovering the drill tool, and storing the drill tool. It can be done by a stand.

[0018]

EXAMPLES The apparatus of the present invention will be described in detail below based on examples. Fig. 1 is an overall side view of the automatic attachment / detachment device for the drill tool,
2 is a plan view thereof, and FIG. 3 is a front view thereof. The automatic drill tool attaching / detaching device 1 according to the present invention is attachable / detachable to / from a moving vehicle body 100 such as an existing power shovel, and can freely move to and from a predetermined drilling place.

A swing bracket 50 which is rotatable around a vertical axis by a hydraulic cylinder 54 is attached to the moving vehicle body 100, and a swing cylinder 50 is rotatable around a horizontal axis by the hydraulic cylinder 52 with respect to the swing bracket 50. The bracket 51 is attached, and the main frame 55 is attached to the front vertical plane of the bracket 51. To mount the main frame 55, L-shaped rails 51a and 51b are fixedly provided on both sides of the front side of the front surface of the bracket 51. The rails 51a and 51b are formed on both sides of the main frame 55. By engaging the convex ridges 55d and 55e,
The main frame 55 is slidable in the vertical direction using the bracket 51 as a guide, and its movement is controlled by the expansion and contraction operation of the hydraulic cylinder 53 connected to the bracket 55f at the upper end of the main frame 55. .

First, one end of a boom 60 is pivotally supported by a mounting bracket 55a fixedly mounted on the upper portion of the main frame 55, and is made rotatable by a hydraulic cylinder 61 in the up and down direction. One end of the first arm 63 is pivotally supported with respect to the other end of the
A hydraulic cylinder 62 that connects the middle part of No. 3 and the middle part of the boom 60 is rotatable in the up and down direction.
A torque actuator 66 is provided on the other end side of the first arm 63.
The handling unit 2 is attached through the torque actuator 66, and the torque actuator 66 allows the front end side to freely rotate in the forward and reverse directions around the axis.

The torque actuator 66 is connected in detail, as shown in FIG. 4, by a connecting bracket 66a fixed to the base end of the torque actuator 66 and a connecting bracket 63a provided at the tip of the first arm 63. Are connected by a pin 65, and a cylinder bracket 66b is fixedly mounted on the side of the torque actuator 66. The middle of the hydraulic cylinder 64 is pivotally supported on the cylinder bracket 66b, and the piston of the hydraulic cylinder 64 is Since the tip end portion is pivotally supported with respect to the side portion bracket 63b that is extended to the side portion from the connecting bracket 63a, the entire front end side handling unit 2 including the torque actuator 66 is expanded and contracted by the hydraulic cylinder 64. It can be freely rotated in the prone or supine direction.

The handling unit 2 mainly grips the casing tube 4A, grips the casing hand 2A capable of rotating the casing tube 4A in this gripped state and the inner rod 4B, and holds the gripped state in this gripped state. Inner rod hand 2 that can rotate the inner rod 4B with
B (hereinafter, simply referred to as a rod hand).

The base arm 22 to which the casing hand 2A and the rod hand 2B are attached is connected to the torque actuator 66 via the slide unit 20. In the slide unit 20, a flange 24a is provided on a slide rail 24 fixed to the torque actuator 66, while rollers 23a and 23a of a slide block 23 fixed to the base arm 22 are attached to the flange 24a of the slide rail 24. And the slide block 23 is movably attached to the slide rail 24 and fixed to the slide block 23.
Of the piston 21a is connected to the end protruding portion 24b of the slide rail 24, and the slide block 23 and the entire handling unit 2 integrally fixed to the slide block 23 are slid by the expansion and contraction operation of the hydraulic cylinder 21. It is movable along 24.

First, the casing hand 2A provided on the tip side of the base arm 22 will be described in detail with reference to the roller holder 2 at the tip of the base arm 22, as shown in FIG.
8 is fixed, and a plurality of driven rollers 29a to hold the casing tube 4A on the roller holder 28.
29c is provided. In addition, at the tip of the L-shaped bracket 22a that extends in an L-shape from the tip of the base arm 22,
The pressing arm 26 is rotatably supported by the shaft 26a, and the hydraulic cylinder 25 is pivotally supported by the shaft 25a with respect to a cylinder support bracket 22c fixedly provided in the middle of the L-shaped bracket 22a. The tip end of the piston 25b is the pressing arm 26.
By connecting one end of the hydraulic cylinder 25 with a shaft 25c, the rotating operation of the pressing arm 26 is controlled by the expansion and contraction operation of the hydraulic cylinder 25. Further, a drive roller 27 driven by a hydraulic motor 30 with a speed reducer 31 in between is provided at the tip of the pressing arm 26, and the driven rollers 29a-2 are used.
With 9c, the casing tube 4A or the inner rod 4B at the time of recovery is gripped, and the casing tube 4A and the like can be freely rotated in the forward and reverse directions while being gripped.

When the drive roller 27 is pressed against the casing tube 4A by the force of the hydraulic cylinder 25, as shown in the drawing, three driven rollers 29a to 29a are used.
It is supported by c, but when the casing tube 4A is larger than this, it is supported by the driven rollers 29a and 29c, and when the inner rod 4B is recovered,
As indicated by the chain line, it is supported by driven rollers 29a and 29b. Further, the casing tube 4A is rotated in a tightening direction when the casing tube 4A is connected, and is rotated in a loosening direction when the casing tube 4A is collected. The three driven rollers 29
The a to 29c are arranged at a slight distance in the axial direction of the casing tube 4A for stability when the casing tube 4A is gripped.

On the other hand, the rod hand 2B has a base arm 2
A hydraulic cylinder 32 that is attached to the other end of a first link 33 and a second link 34 that are provided in parallel in the middle of 2 and that connects the intermediate portion of the first link 33 and the intermediate portion of the base arm 22. The first and second links 33 and 34 are rotated in parallel by the expansion and contraction of the hydraulic cylinder 32, and the rod hand 2B can be moved in the direction orthogonal to the axis of the inner rod 4B. There is.

The rod hand 2B is shown in detail in FIG.
And as shown in FIG. 8, the rod hand frame 3
5, a pair of substantially L with the shaft 41 as a support shaft.
The character-shaped hand arms 37 and 38 are provided in the shape of scissors, and the rear ends of the hand arms 37 and 38 are located at the hydraulic cylinder 3.
6 are connected to each other, and the distal end sides of the hand arms 37 and 38 are opened and closed by the expansion and contraction operation of the hydraulic cylinder 36 to grip the inner rod 4B.

Driven rollers 40a to 40d are provided on the tip ends of the hand arms 37 and 38, respectively, and a drive roller 39 is integrally provided on the shaft 41, and the driven rollers 40a to 40d are provided on the peripheral surface of the gripped inner rod 4B. The driven rollers 40b and 40d and the drive roller 39
Abut and hold it. The hand arms 37, 3
A hydraulic motor 43 is provided on a side portion of the drive shaft 8. The drive force is transmitted to the shaft 41 via the speed reducer 42 to drive the drive roller 39, so that the gripped inner rod 4B can be moved in the forward and reverse directions. Can be rotated. The four driven rollers 40a to 40d are provided for the hand arms 37 and 38 so that the driven arms 40a to 40d can be held even if the inner rods have different sizes. 40c is idle, but if the diameter size of the gripping inner rod 4B becomes smaller,
The driven rollers 40b and 40d will play.

On the other hand, under the main frame 55, hooking bars 55b and 55c provided in upper and lower two stages are fixedly provided, while hooks are attached to a tool rack 10 for accommodating the drill tools 4 and 4. 10a and 10b are provided,
Each of these hooks 10a10b is hooked on the hooking bars 55b and 55c, so that the tool rack 1
0 is supported by the main frame 55. The tool rack 10 is a rack for accommodating the drill tool 4 assembled in a U-shaped cross section using the face frames 10A to 10C,
The drill tools 4, 4, ... Are stacked and accommodated in this. Further, a temporary bracket 11 having an arcuate notch formed on the upper surface is fixedly provided at the upper end of the face member 10C,
It is a temporary storage place when the drill tool 4 is delivered between a take-up unit 3 and a handling unit 3 which will be described later.

On the other hand, in the middle portion of the main frame 55, the take-up unit 3 for supplying the drilling tools 4, 4, ... Densely housed in the tool rack 10 to the handling unit 2. Is provided.

The take-up unit 3 comprises a take-up hand 5 for holding the drill tool 4 and the like, and a beam unit 6 for moving the held drill tool 4 to the temporary bracket 11.

As shown in detail in FIGS. 12 and 13, the take-up hand 5 first projects to the lower end side portion of the Z-axis beam 72, and the take-up frame 90 is fixedly installed. Guide rails 74A and 74B each having a concave groove on both sides of the frame 90 are fixed facing each other, and a rail groove 9 with an opening facing downward.
4C is formed, and four rollers 9 are formed in the rail groove 94C.
A roller frame 93, which is a slide body according to the present invention, having 3a, 93a, ... Is internally provided, and the roller frame 93 and the Z-axis beam 72 are connected to each other by a hydraulic cylinder 91, and the hydraulic cylinder 91 is expanded and contracted. By the operation, the roller frame 93 is movable along the rail groove 94C.

A connecting bracket 93b is vertically provided on the lower surface of the roller frame 93, and a take-up arm (swinging member) 95 swingable in a seesaw shape by a shaft 98 with respect to the connecting bracket 93b. It is provided. A hydraulic cylinder 97, which is vertically expandable and contractible, is arranged at one end of an arm 95B (hereinafter, referred to as an operating side arm) on the tip side of the shaft 98 of the takeup arm 95, and the roller frame 93 and the takeup arm 9 are provided.
5 and one end thereof are connected to each other by a spring 96, and when the hydraulic cylinder 97 is contracted, the spring 96
The operating side arm 95B is lifted upward by the contracting force of
From the axis 98 of the take-up frame 95 to the Z-axis beam 72
Proximal base end side arm 95A (hereinafter referred to as a sandwiching arm)
Is to be lowered. The spring 96
The roller frame 93 and the operating side arm 95
It is also possible to connect B with the hydraulic cylinder 97. Further, the hydraulic cylinder 97 for controlling the rocking operation
Alternatively, a rotatable ball shaft may be screwed into the actuating arm 95B from the roller frame 93 side, and the swing motion of the take-up arm 95 may be controlled by the rotation of the ball shaft.

Further, an extruding end 95a is formed at the tip of the take-up arm 95, and as shown in the drawing, the roller frame 9 is formed.
The movement of 3 causes the holding arm 95A to move to the casing tube 4
When inserted into the pipe A, the push-out end 95a contacts the pipe end of the inner rod 4B and pushes out a predetermined amount (the length of the arm) to the opposite side as the roller frame 93 moves.

On the lower surface of the Z-axis beam 72, there is provided a hold head 99 having an arcuate surface conforming to the outer surface shape of the casing tube 4A. The holding arm 95A of the take-up arm 95 is a casing. With the tube 4A inside (the state shown by the chain line), the hydraulic cylinder 97 is extended to push the holding arm 95A upward, and the hold head 99 and the holding arm 95A move the pipe wall portion of the casing tube 4A. It can be clamped. The hold head 99 is replaced according to the size of the casing tube 4A.

On the other hand, in detail, as shown in FIGS. 9 and 10, the beam unit 6 has an X drive unit 73 fixed to the main frame 55, and the X drive beam 73 is attached to the X drive unit 73. Is movably provided, then a Y drive unit 74 is fixedly attached to one end of the X-axis beam 70, and a Y-axis beam 71 is movably provided on the Y drive unit 74.
The Z drive unit 75 is fixed to one end of the axis beam 71, and the Z axis beam 72 is movably provided on the Z drive unit 75. The Z drive unit 75 is fixed to the tip of the Z axis beam 72 by the take-up hand 5. The grasped drill tool 4 can be moved to a predetermined position (position of the temporary bracket 11).

Here, the X drive unit 73, Y
Since the drive unit 74 and the Z drive unit 75 have the same configuration, the Y drive unit 74 will be described as a representative of the drive units 73 to 75.
Based on. A hydraulic motor 80 is provided on a side portion of a unit box 88 fixed to the tip of the X-axis beam 70, and a pinion gear 85 is fixed to a shaft 86 via a coupling 81 for connection and a speed reducer 87 in the middle. At the same time, two sets of a pair of guide rollers 84a and 84b arranged at a predetermined interval are provided inside the unit box 88 so as to face each other. On the other hand, a plate-shaped rail 82 is fixed to the rear side of the Y-axis beam 71, and the plate-shaped rail 82 is mounted so as to be sandwiched between the guide rollers 84a and 84b, and the rear side of the Y-axis beam 71 is also attached. By engaging the rack gear 83 fixed to the pinion gear 85 with the pinion gear 85, the Y-axis beam 71 is moved in the beam axis direction by driving the hydraulic motor 80.

Next, the above-mentioned automatic drill tool attaching / detaching device supplies the drill tools 4, 4, ...
The recovery will be described in detail.

[Supply of Drill Tool] Now, the drill tool 4 with the inner rod 4B inserted into the casing tube 4A is closely packed in the tool rack 10, and the tool rack 10 is placed on the ground. State (Fig. 1
From the state shown in (1), the case where the drill tools 4 are supplied one by one to the adjacent boring machine (not shown) will be described.

One of the casing tubes 4A in which the hold head 99 of the Z-axis beam 72 is housed in the tool rack 10 by operating the hydraulic motors of the X, Y and Z drive units 73, 74 and 75 of the take-up unit 3.
The casing tube 4A is moved so as to come into contact with the outer surface thereof, and the Z-axis beam 72 is slightly moved downward to apply a pressing force to the casing tube 4A to fix and stabilize the casing tube 4A. At this time, the hydraulic cylinder 91 of the take-up hand 5 is in the most extended state.

When the hydraulic cylinder 97 of the take-up arm 95 is contracted from this state, the holding arm 95A of the take-up arm 95 swings downward due to the force of the spring 96, and a gap is formed between the take-up frame 90 and the lower surface thereof. It is formed. In this state, when the hydraulic cylinder 91 is gradually contracted, the roller frame 93 moves to the Z-axis beam 72 side along the rail groove 94C, the holding arm 95A of the take-up arm 93 enters the inside of the casing tube 4A, and Push out the inserted inner rod 4B to the opposite side.

The operation of the hydraulic cylinder 91 is stopped before the end surface of the casing tube 4A collides with the end of the connecting bracket 93b of the roller frame 93.
When the hydraulic cylinder 97 is extended, the holding arm 95A of the take-up arm 95 swings upward to firmly hold the tube wall of the casing tube 4A with the hold head 99.

Next, the hydraulic motor of the Z drive unit 75 is operated to move the Z-axis beam 72 upward and lift the drill tool 4. After that, the X, Y, Z drive units 73, 74, 75 are operated to move the drill tool 4 to the position above the temporary bracket 11, and the holding by the take-up arm 95 is released, so that the drill tool 4 is moved above the temporary bracket 11. Place on. Then, the take-up hand 5 is moved to the position of the drill tool 4 to be moved next.

Next, with the hydraulic cylinder 25 of the casing hand 2A contracted to maximize the opening of the grip portion of the casing hand 2A, the hydraulic cylinders 61, 62 are pressed.
Is operated to move the casing hand 2A to the temporary placement position of the drill tool 4, the casing tube 4A is taken into the casing hand 2A, the hydraulic cylinder 25 is extended, and the casing tube 4A is gripped. In addition,
At this time, the hydraulic cylinder 32 for operating the parallel links 33 and 34 is extended to the maximum and the rod hand 2B is retracted to a position apart from the drill tool 4.

After the casing tube 4A is gripped by the casing hand 2A, the parallel cylinder hydraulic cylinder 32 is contracted while the hydraulic cylinder 36 of the rod hand 2B is contracted to maximize the opening of the grip portion of the rod hand 2B. The rod hand 2B to the drill tool 4 side, the take-up arm 95 takes in the inner rod 4B protruding outward from the end of the casing tube 4A, extends the hydraulic cylinder 36, and the rod hand arm 37, 38 Hold the rod 4B. This is the state shown in FIG.

On the other hand, before the above operation, on the drilling machine side, the drill head for connecting the drill tool 4 is retracted in advance to the rear end of the guide cell to supply the drill tool 4 onto the guide cell. Reserve a space.

Then, the drill tool 4 held by the casing hand 2A and the rod hand 2B is moved to the side of the drilling machine located forward by operating the hydraulic cylinders 61 and 62, and the torque actuator is operated by the operation of the hydraulic cylinder 64. After the tip side is horizontal from 66 (state shown by the chain line in FIG. 1), the torque tool 66 is operated and held to adjust the drill tool 4 to the drilling angle of the drilling machine, and the inner rod 4B is set to the drilling center. To match.

The drill head of the drilling machine is advanced along the guide cell and stopped at a position where the rod connecting portion at the tip of the drill head is at an appropriate distance from the inner rod 4B gripped by the rod hand 2B, and the hydraulic cylinders 61, 62. And 6
4. Make fine adjustment again so that the center of the inner rod 4B comes to the center of the drill head.

Next, the hydraulic motor 43 of the rod hand 2B.
Is started to rotate the drive roller 39 to rotate the inner rod 4B in the direction in which the connection screw is tightened, while operating the hydraulic cylinder 21 of the slide unit 20 to bring the inner rod 4B closer to the drill head side. While matching the screw and the female screw, the inner rod 4B is further rotated and sent to the drill head side, and both screws are coupled to complete the coupling of the drill head and the inner rod 4B. After that, rod hand 2B
The hydraulic cylinder 36 is extended to open the grip portion, and the parallel linked hydraulic cylinder 32 is extended to retract the rod hand 2B from the inner rod 4B.

Next, the drill head is gradually advanced and stopped when the casing tube connecting portion on the drill head side is at an appropriate distance from the casing tube 4A held by the casing hand 2A, and the hydraulic cylinders 61, 62 and Activate 64 to finely adjust the center of casing tube 4A to the center of the drill head. afterwards,
The hydraulic motor 30 of the casing hand 2A is started to rotate the drive roller 27, and the casing tube 4
While rotating A in the direction in which the connection screw is tightened, the hydraulic cylinder 21 of the slide unit 20 is actuated to bring the casing tube 4A closer to the drill head side, and both male and female screws are made to coincide with each other, and further the casing tube 4A is It is sent to the drill head side while rotating, and both screws are connected to each other to complete the connection between the drill head and the casing tube 4A.

Thereafter, the hydraulic cylinder 25 of the casing hand 2A is contracted to open the grip portion, and the hydraulic cylinder 6
1, 62, 64 and 21 are operated to retract the casing hand 2A to prepare for handling the drill tool 4 to be supplied next, which is placed at the tool temporary placement place.

[0052] The inner rod 4B and the drill head at one end of the casing tube 4A is connected to advance along the guide cell, after the inner rod 4B _f and drill head side of the existing stored in the centralizer of the guide cell Align the center of the new inner rod 4B with the end and activate the rotation mechanism of the drill head, first join the inner rods together, then advance the drill head again, and move the casing tube 4A on the drill head side to the guide cell. Existing casing tube 4A _f retained
Aligning with the rear end, the rotating mechanism of the drill head is operated to advance the drill head to join the casing tubes together.

According to the above procedure, one set of drill tools 4
Is completed and the drilling is started again.

[Recovery of Inner Rod] When the predetermined drilling work is completed, the rotating mechanism of the drill head is reversely rotated while the casing tube 4A connected to the drill head is held by the clamp mechanism of the centralizer part. At the same time, when the guide cell is retracted along the guide cell, the screw between the casing connecting portion of the drill head and the connecting portion of the first casing tube 4A is first removed. When the drill head is still retracted after the casing tube 4A is detached, the inner rod 4B connected to the inner rod connecting portion of the drill head appears.
Is held by a holding mechanism different from the mechanism holding the casing tube 4A, and the rotating mechanism of the drill head is rotated in the reverse direction, the screw of the connecting portion is loosened. With the screw loosened, the drill head is retracted while still loosely coupled, and when the second inner rod 4B _f appears, the drill head is stopped from retracting.

After that, with the two inner rods 4B _{f held} by the holding mechanism of the punch, the first inner rod 4B is moved to the first inner rod 4B by using another holding / rotating mechanism of the punch. rotating the direction of loosening the screw 1 -th inner rod 4B and screws and two second inner rod 4B _f loosening.

The above-described operation is the recovery work on the punching machine side, and then the recovery work of the inner rod 4B by this device is started. By the above operation, the inner rod connecting portion of the drill head and the first and second inner rods 4B,
The two screws on the 4B _f connection are loose, but the screws are still joined. First, with the parallel link hydraulic cylinder 32 extended and the rod hand 2B retracted, the hydraulic cylinder 25 is contracted to open the casing hand 2A to open the hydraulic cylinders 61, 62, 6
4, 21 and the torque actuator 66 are operated so that the casing hand 2A is brought into contact with the inner rod 4B connected to the drill head.

The driven roller 29 of the casing hand 2A
When the inner rod 4B comes into contact with a and 29b, the hydraulic cylinder 25 of the casing hand 2A is extended and the drive roller 27 at the tip of the casing hand arm 26 is pressed against the inner rod 4B.
5 and extend inner rod 4B to casing hand 2
Firmly grip with A.

In this state, when the drill head is retracted while the rotating mechanism of the drill head is rotated in the reverse direction, the screw on the drill head side of the inner rod 4B is disconnected.
With the drill head retracted to an appropriate position as it is, the hydraulic motor 30 of the casing hand 2A is operated to rotate the drive roller 27 in the direction in which the screw of the inner rod 4B is loosened, and the hydraulic cylinder 21 of the slide unit 20 is operated. The casing hand 2A is moved in the direction in which the screw is removed. When the screw is removed, hydraulic cylinder 6
1, 62, 64, 21 and the torque actuator 66 are operated to move the inner rod 4B gripped by the casing hand 2A to the position of the tool rack 10 and the hydraulic cylinder 25 of the casing hand 2A is contracted to grip the inner rod 4B. Is opened and the inner rod 4B is stored in the tool rack 10.

[0059] In the following, in order to recover the inner rod 4B, 4B _f ... the by repetition of the same action.

[Collection of Casing Tube] The drill head is advanced along the guide cell, the casing connecting portion of the drill head is aligned with the rear end of the casing tube 4A held by the clamp portion of the centralizer, and the drill head is rotated. The mechanism is started to rotate the screw head in the tightening direction, and the drill head is advanced to screw the screw portion of the drill head into the screw portion of the casing tube 4A. Stop the rotation of the drill head in the loosely coupled state and retract the drill head. Second casing tube 4A _f
Stop retracting the drill head where can be gripped by the centralizer clamp. If the second casing tube 4A _f is gripped by the clamp mechanism, and is rotated in the screw loosening direction while the first casing tube 4A is gripped by the gripping / rotating mechanism on the drill head side, the first casing tube 4A _f And the screw of the second casing tube 4A _f becomes loose.

The above operation is the recovery work on the side of the punching machine, and then the recovery work of the casing tube by this device is started. By the above operation, the casing connection portion of the drill head and the first and second casing tubes 4A,
The two screws on the 4A _f connection are loose, but the screws are still joined. First, with the parallel link hydraulic cylinder 32 extended and the rod hand 2B retracted, the hydraulic cylinder 25 is contracted to open the casing hand 2A, and the hydraulic cylinders 61, 62, 6
4, 21 and the torque actuator 66 are operated to operate so that the casing hand 2A is in contact with the casing tube 4A in the state of being coupled to the drill head.

The driven roller 29 of the casing hand 2A
When the casing tube 4A comes into contact with a and 29c, the hydraulic cylinder 25 is extended and the drive roller 27 at the tip of the casing hand arm 26 is pressed against the casing tube 4A, and the hydraulic cylinder 25 is extended to secure the casing tube 4A to the casing hand 2A. And hold.

In this state, when the drill head is retracted while the rotating mechanism of the drill head is reversely rotated, the screw on the drill head side of the casing tube 4A is disconnected.

With the drill head retracted to an appropriate position as it is, the hydraulic motor 3 of the casing hand 2A.
The hydraulic cylinder 21 of the slide unit 20 is operated to move the casing hand 2A in the direction of releasing the screw while rotating 0 in the direction of loosening the screw. When the screws are removed, the hydraulic cylinders 61, 62, 64, 21 and the torque actuator 66 are operated to move the casing tube 4A held by the casing hand 2A to the position of the tool rack 10 and the hydraulic cylinder 25 of the casing hand 2A is contracted. The casing tube 4A is released from the grip and the casing tube 4A is stored in the tool rack 10.

Thereafter, the casing tubes 4A, 4A _f, ... Are sequentially collected by repeating the same operation.

By the way, this device is most preferably used for a drill tool having a double pipe structure consisting of a casing tube and an inner rod, but even a single pipe rod is used with the rod hand 2B retracted. Don't
The single handed rod can be mechanically supplied / recovered by the casing hand 2A.

[0067]

As described above in detail, according to the present invention, it is possible to easily take out one by one from a group of drill tools which are stacked in a densely packed state. In addition, the inner tube can be supplied to the drill tool attaching / detaching device, etc. with a predetermined amount protruding to one side, and by connecting / disconnecting from the drill head by operating the attaching / detaching device side, operability and workability are improved. It will be excellent.

[Brief description of drawings]

FIG. 1 is an overall side view of a drill tool attaching / detaching device.

FIG. 2 is a plan view thereof.

FIG. 3 is a front view thereof.

FIG. 4 is an enlarged side view of a handling unit.

FIG. 5 is an enlarged plan view of a handling unit.

FIG. 6 is an enlarged view of a casing hand.

FIG. 7 is an enlarged side view of a rod hand.

FIG. 8 is an enlarged plan view of a rod hand.

FIG. 9 is an enlarged front view of the beam unit.

FIG. 10 is an enlarged side view of the beam unit.

FIG. 11 is an enlarged view of a Y-axis drive unit.

FIG. 12 is an enlarged side view of a take-up hand.

FIG. 13 is an enlarged front view of the take-up hand.

[Explanation of symbols]

1 ... Automatic drill tool attaching / detaching device, 2 ... Handling unit, 2A ... Casing hand, 2B ... Rod hand,
3 ... Take-up unit, 4 ... Drill tool, 4A ...
Casing tube, 4B ... Inner rod, 5 ... Take-up hand, 6 ... Beam unit, 10 ... Tool rack, 20 ... Slide unit, 27 ... Drive roller, 33.34 ... Link, 39 ... Drive roller, 55
... Main frame, 66 ... Torque actuator (rotary support), 70 ... X-axis beam, 71 ... Y-axis beam, 72 ...
Z-axis beam, 73 ... X drive unit, 74 ... Y drive unit, 75 ... Z drive unit, 90 ... Take-up frame (bracket) 91 ... Hydraulic cylinder, 93 ... Roller frame (slide body), 95 ... Take-up arm (oscillating member) ), 95a ... pressing end, 96 ...
Spring, 97 ... Hydraulic cylinder, 98 ... Shaft, 99 ... Hold head, 100 ... Moving carriage

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Norio Otsubo 1-51-3 Matsubara, Setagaya-ku, Tokyo Daiichi Nagatomo Building Ohmic Co., Ltd.

Claims (4)

[Claims] 1. A traveling carriage; an X-axis drive unit for holding an X-axis beam arranged in the X-axis direction so as to be movable along the beam axis direction is fixedly provided, and a Y-axis is provided at one end of the X-axis beam. A Y-axis drive unit that holds the Y-axis beam arranged in the axial direction movably along the beam axis direction is fixed, and the Z-axis beam arranged in the Z-axis direction is provided at one end of the Y-axis beam. Z which is movably held along the beam axis direction
A shaft drive unit is fixed, a bracket is fixed to the lower end of the Z-axis beam so as to project laterally, and a slide body is provided on the lower surface side of the bracket so as to be movable along the protruding direction of the bracket. , A seesaw-shaped swinging member is axially supported on a vertically extending piece fixed to the lower surface of the slide body along the bracket overhanging direction, and the swinging member is provided on the arm on the tip side of the bracket overhanging direction. An operation control means for controlling the swinging motion of the swinging member is provided, and the base end side arm of the swinging member is inserted into the outer pipe by the movement of the slide body, and at the same time, the base end side arm is opposite to the inner pipe. A take-up unit having a tubular body gripping portion that clamps the tube wall portion of the outer tube by the base end side arm inserted into the outer tube and the lower end of the Z-axis beam, and one end of which is on the traveling carriage side. Support In addition to providing a boom that can be lifted up and down, one end is pivotally supported at the other end of the boom and a rotatable arm is provided, and a handling unit consisting of an outer pipe hand and an inner pipe hand is provided on the front side of this arm. By a rotary support that is supported by slide rails arranged in the direction of the drill tool and is movable in the axial direction of the drill tool, and that is rotatably supported in the forward and reverse directions around the axis orthogonal to the slide rail direction. Supporting device for double-drilled drill tools, which is characterized by being supported. 2. The handling unit has two links rotatably provided in parallel on a side of a hand base portion supporting an outer pipe hand, and the inner link is provided on the other end side of the two links. A direction in which a pipe hand is provided and a cylinder that connects one of the two links to the outer pipe hand base portion is arranged, and the inner pipe hand is separated from the drill tool by the link rotation operation by the expansion and contraction operation of the cylinder. The device for attaching and detaching a double-pipe drill tool according to claim 1, wherein the device is detachable. 3. At least three or more rollers are provided at appropriate intervals in the circumferential direction of the tubular body in the gripping portions of the outer pipe hand and the inner pipe hand, and the tubular body is abutted by these roller groups. Supports and at least one of the rollers
3. A device for attaching and detaching a double pipe type drill tool according to claim 1, wherein one is rotatable in forward and reverse directions by a driving means. 4. The attachment / detachment device for a double pipe type drill tool according to claim 1, further comprising a tool rack for accommodating the drill tools in a close-packed state with respect to the movable carriage.