JPS6231502Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a press-fit drilling machine for drilling a hole into which an anchor is inserted to strengthen the excavated wall surface when excavating a tunnel or the like.

Generally, when a tunnel is excavated and the wall of the excavated tunnel is soft and there is a risk of collapse, a large number of holes several meters in length extending perpendicular to the wall are drilled and these holes are drilled. Reinforced concrete anchors are placed in the holes to strengthen the walls. When drilling the above-mentioned anchor holes, a long flexible drill is usually used.

By the way, the above-mentioned drilling operation using a drill is inefficient, and has problems such as the hole diameter becoming large and a part of the wall surface collapsing due to the vibration and elliptical rotation of the drill.

In view of the above-mentioned circumstances, the present invention has been developed to position a perforated pipe with a sharp tip perpendicularly to any wall surface, and to press fit the pipe smoothly into the wall to efficiently drill an anchor hole. The purpose is to provide a drilling machine.

Next, the present invention will be explained in detail with reference to the drawings.

FIGS. 1 and 2 show an embodiment of a press-fitting drilling machine according to the present invention, and the reference numeral 1 in the figures indicates a vehicle that can run on its own. A proximal end portion of an arm 2 whose distal end extends to the front of the vehicle 1 is rotatably pivoted to the vehicle 1 . A first hydraulic cylinder 3 is provided between the intermediate lower part of the arm 2 and the vehicle 1. Further, at the tip of the arm 2, a quadrangular support member 4 is rotatably supported by support pins 4a in the left and right direction. At the front part of this support member 4, grooves are arranged on the left and right so that they face each other,
As shown in the enlarged view in FIG. 3, a press-fit drilling machine A having vertically extending channel steels 5a, 5a as supports 5 is operated by a shaft 6a having a rotational axis in the front-rear direction through a reinforcing member 6. It is rotatably mounted. Further, a bracket 4b is provided on the upper part of the support member 4. A second hydraulic cylinder 7 is disposed between this bracket 4b and an intermediate bracket 2a provided at an intermediate upper portion of the arm 2.

Furthermore, a locking member 8 is fixed to the support member 4 with the shaft 6a as the center, as shown in FIG. This locking member 8 is provided with a large number of locking holes 8a at positions on the circumference centered on the axis of the shaft 6a. Further, a bracket 9a is provided at the rear and upper part of the support column 5. This bracket 9a
The cylinder end of the third hydraulic cylinder 9 is rotatably attached to the cylinder by a pin 9b extending in the front-rear direction. At the rod tip of the third hydraulic cylinder 9,
One end of a semicircular arc-shaped locking auxiliary member 10 is rotatably attached, and the other end of the auxiliary member 10 is connected to the locking hole 8a...
...and is locked by a locking pin 10a.

Further, the lower end of the fourth hydraulic cylinder 12 is rotatably attached to the lower end connecting bottom portion 11 of the column 5. This fourth hydraulic cylinder 12 is provided along the channel steel 5a, and the upper part of the cylinder portion 12a is located approximately at the vertical center of the column 5.
It is supported by a cylinder support member 13 fixed to. At the left and right upper portions of the cylinder support member 13, guide rods 14, 14 are provided along the channel steel 5a.
is installed. In addition, the fourth hydraulic cylinder 12
A press-fitting chuck 1 is attached to the upper end of the rod portion 12b.
5 is installed. This press-fitting chuck 15
As shown in FIGS. 5a and 5b, the left and right parts are guided by guide rods 14, 14, and the drive part 15a has the upper end of the rod part 12b attached to the lower part, and a drive part 15a is provided so as to protrude in front of the drive part 15a. The upper and lower chuck holding plates 15b, 15b and the plates 15b,
The chuck body 15d is rotatably pivoted between the chuck body 15b by a vertical pin 15c and locks the perforated pipe 17, and the fifth hydraulic cylinder 16 opens and closes the chuck body 15d. has been done. Note that 15e is provided on the chuck holding plates 15b, 15b, and is attached to the chuck main body 1.
This is a curved elongated hole that guides the opening and closing of 5d.

Furthermore, a pipe rotation device 18 is provided at the upper end of the support column 5 to rotate the perforated pipe 17 to be press-fitted. This pipe rotating device 18 is constructed as follows. That is, Fig. 6 a, b
As shown in FIG. 2, a rotating device mounting plate 18a is fixed to the upper end of the support column 5 and protrudes forward. A pipe hole 18b is provided in a portion of the rotating device mounting plate 18a through which the perforated pipe 17 passes.
A rotating portion 18d to which a pipe chuck 18c is attached is rotatably attached to the upper surface of the mounting plate 18a in the pipe hole 18b via a gland portion 18e. The above pipe chuck 18c
The rod tip of a sixth hydraulic cylinder 19, whose one end is rotatably attached to the upper part of the support column 5, is attached to the base of the column. When the sixth hydraulic cylinder 19 extends, the perforated pipe 17 is bitten by the pipe chuck 18c, and rotates horizontally as the rotating part 18d rotates. When the sixth hydraulic cylinder 19 shortens, the pipe chuck 18c It is adapted to loosen and release the perforated pipe 17. Also,
18f is a coil spring that allows the rotating portion 18d to return smoothly.

In addition, perforated pipe 1 used in the present invention
7 is provided with female and male threads 17a and 17b at its ends, respectively, as shown in FIG. 7a, and is threadedly connected. Engagement grooves 17a, in which directional movement is locked, are arranged at equal intervals. The most advanced pipes also have pointed ends for easy drilling. Further, as shown in FIG. 7b, the tip is opened in a flap shape, so that cement or the like can be press-fitted through the pipe 17.

Next, a method of operating the apparatus according to the present invention configured as described above will be explained.

The operation is performed according to the following steps. (1) Drive the vehicle 1 and move the press-fit perforator A to a location where wall reinforcement is required. (2) Shorten the fourth hydraulic cylinder 12 and lower the press-fitting chuck 15. (3) Engagement groove 17 of perforated pipe 17 with a pointed cap at the end
The portion c is engaged with the chuck body 15d by operating the fifth hydraulic cylinder 16. At the same time, the sixth hydraulic cylinder 19 is shortened, the pipe chuck 18c is loosened, and the perforated pipe 17 is engaged with the pipe chuck 18c. (4) First, second, and third hydraulic cylinders 3,
7 and 9 to move the press-fit perforation machine A vertically, and also to rotate it in the left-right and front-back directions, until the tip of the perforation pipe 17 is almost perpendicular to the tunnel wall B, as shown in FIG. close together so that (5) Extend the fourth hydraulic cylinder 12, raise the press-fitting chuck 15, and press-fit the perforated pipe 17 into the wall. At the same time, the sixth hydraulic cylinder 19 is extended to rotate the perforated pipe 17. in this case,
When the sixth hydraulic cylinder 19 is shortened, the biting of the perforated pipe 17 by the pipe chuck 18c is
When the pipe chuck 18c is released, the rotating portion 18
Return to the original position with d. Therefore, by driving the sixth hydraulic cylinder 19 to expand and contract, the perforated pipe 17 is turned in one direction. When the press-fitting chuck 15 reaches the upper end of the support column 5, a new perforated pipe is screwed and connected to the lower end of the press-fitted perforated pipe 17, if necessary. In this case, since the engagement groove 17c has the same width as the vertical movement of the press-fitting chuck 15, the press-fitting chuck 15 is lowered and engaged with the engagement groove 17c, and the strut 5
Raise it to the top of the button to release the engagement. By repeating this, the perforated pipe 17 is successively press-fitted. In this way, the drilling by the press-fitting drilling machine A does not involve vibration, and since the drilling pipe 17 is press-fitted while rotating, the drilling can be performed smoothly without collapsing the wall surface.

Further, the perforated pipe 17 can be pulled out by performing an operation opposite to that for press-fitting, and a reinforced concrete anchor can also be placed using the perforated pipe when being pulled out.

As mentioned above, the press-fit drilling machine according to the present invention is
It is possible to move vertically and turn left and right, and front and back, allowing it to be vertically opposed to any position on curved walls such as tunnels. Also, since the perforation pipe is press-fitted while being rotated, smooth perforation is possible. It has many advantages such as:

[Brief explanation of the drawing]

Figures 1 and 2 are diagrams showing an embodiment of the press-fit drilling machine according to the present invention installed in a vehicle.
Fig. 1 is a side view, Fig. 2 is a view taken in the direction of - arrow in Fig. 1, Fig. 3 is an enlarged side view showing the press-fit perforation machine and the mounting part, and Fig. 4 is a view taken in - direction of Fig. 3, Figure 5a
is a plan view of the press-fitting chuck, and Fig. 5b is a plan view of the press-fitting chuck.
Fig. 6a is a plan view of the pipe rotating device, Fig. 6b is a side view taken from the - arrow in Fig. 6a,
FIG. 7a is a perspective view of a perforated pipe connected in the middle, and FIG. 7b is a view of the tip of the pipe. DESCRIPTION OF SYMBOLS 1... Vehicle, 2... Arm, 2a... Intermediate bracket, 3... First hydraulic cylinder, 4... Support member, 4a... Support pin, 4b... Bracket, 5
...Strut, 5a...Channel steel, 6...Reinforcement material, 6a
... shaft, 7 ... second hydraulic cylinder, 8 ... locking member, 8a ... locking hole, 9 ... third hydraulic cylinder,
9a... Bracket, 9b... Pin, 10... Locking auxiliary material, 10a... Locking pin, 11... Connection bottom, 12... Fourth hydraulic cylinder, 12a... Cylinder part, 12b... Rod part , 13... Cylinder support member, 14... Guide rod, 15... Press-fitting chuck, 15a... Drive section, 15b... Chuck holding plate, 15c... Pin, 15d... Chuck body, 15e... Curving length Hole, 16... Fifth hydraulic cylinder, 17... Perforated pipe, 17a, 17b...
Female and male thread, 17c... Engaging groove, 18... Pipe rotating device, 18a... Rotating device mounting plate, 18b...
Pipe hole, 18c... Pipe chuck, 18d...
...Rotating part, 18e...Gland part, 18f...Coil spring, 19...Sixth hydraulic cylinder, A
...Press-in drilling machine, B...Tunnel wall surface.

Claims (1)

[Scope of utility model registration request] A press-fit perforator attached to the tip of a vertically movable arm includes a mechanism for rotating the press-fit perforator around a longitudinal axis and a left-right axis, and a perforation set along the press-fit perforator. A press-fitting drilling machine comprising a press-fitting chuck that projects a pipe upward, and a pipe rotating device that rotates the projecting drilling pipe about the central axis of the pipe.