JPH0718308B2 - Rock drilling method and rock drilling device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rock drilling method and a rock drilling device, and more particularly to guiding a small-diameter hole drilled using a rock drilling machine without holding the rock drilling machine. It is for mounting on the rail and automatically drilling on the retaining wall and other places.

Conventional technology Generally, in order to make holes for anchor bolts or small diameter holes for blasting on the slope of a retaining wall or rock, a rod of a specified length with a drilling tip attached to the tip is A rock drill that excavates a hole while being rotated and vibrated by air is handheld to excavate a predetermined hole.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, according to the above-mentioned conventional technique, since the rock drill is hand-held and operated by human power, the burden on the worker is large, and particularly vibration directly affects health. Give,
May cause health problems such as white wax. In addition, when working on the retaining wall, a large-scale scaffold up to the work site had to be installed, which imposes a heavy time and financial burden, resulting in extremely poor work efficiency. Further, since the worker has to carry the work with the rock drill handheld, the work system is often bad, the hole is bent, and the rod cannot be rotated halfway. In addition, since it is operated manually, for example, when making a hole of 3 m, from the beginning
It was not possible to use a rod with a length of 3 m, it was necessary to gradually use a rod with a length of about 50 cm, and replace it with a rod with a longer length as the drilling was performed, resulting in extremely low work efficiency.

Therefore, in view of the above circumstances, the present invention mounts a rock drill on a simple guide rail installed at a work place without holding and operating the rock drill and without requiring a large-scale scaffold. Then, it is an object of the present invention to provide a convenient rock drilling method and rock drilling device that can automatically drill a predetermined hole in a retaining wall or other places.

Means for Solving the Problems In order to solve the above-mentioned problems, according to claim 1, first, a guide rail having a required length is erected at a desired angle so as not to fall down with respect to a hole such as a retaining wall. A rock drill is mounted on a guide body that can be stably supported and this guide rail is movable in the longitudinal direction, and a rod of a required length having a rock drill tip at the tip is mounted on the rock drill and the guide body is installed. A rock drilling method, characterized in that the rope is connected to the rod, the drilling tip is operated to press the drilling tip against the drilling surface, the rock drill is operated to drill the hole, and then the rod is pulled out through the rope. provide.

In addition, a guide rail composed of a pair of pipes of a required length, a line that erects the guide rail at a desired angle on the piercing surface, and a guide body that is movably engaged with the guide rail in the longitudinal direction, A rope for moving the guide body in the longitudinal direction of the guide rail, a rock drill removably fixed to the guide, and a rod of a required length detachably mounted on the rock drill, The guide body in the rock drilling device comprises an excavating tip attached to the tip of the rod, and the cylinders into which the pair of pipes are fitted are equidistantly separated, and both ends thereof are connected by brackets. , One of the brackets has one end of the rock drill rotatably supported by a pivot, and the other has a bending portion for receiving the other end of the rock drill so that the rock drill is detachable Is provided.

According to the present invention of the above-mentioned means, the guide rail is stably erected in a state orthogonal to the inclined surface of the retaining wall or the like, and the guide body with the rock drill is positioned at the upper end portion of the guide rail to start the operation. Let Then, the drilling tip at the tip of the rod of the rock drill pierces, and the weight of the rock drill and the guide body is applied to the rod, the guide body slides down the guide rail and descends, and the rod is introduced into the ground. Then, the punching work is automatically performed. Although it is possible to excavate by its own weight in most places, if the drilling due to its own weight does not progress due to the nature of the ground, pull the rope connected to the guide toward the inclined surface,
If you assist the rock drill to press the excavation, the drilling will be done automatically. When the boring operation is completed, the rope wound around the sheave locked to the upper end of the guide rail is pulled upward, the guide body is moved upward along the guide rail, and the rod is pulled out from the hole.

Example In the rock drilling method of the present invention, a guide rail of a required length is erected at a desired angle on an inclined surface such as a retaining wall and fixedly supported so as not to fall, and the guide rail is moved in the longitudinal direction. Attach a rock drill to a possible guide body, attach a rod of a required length having a drilling tip at the tip to the rock drill, connect a rope to the guide body, and operate the rope. The drilling tip is pressed against the drilling surface, the rock drill is operated to drill the hole, and then the drilling tip is pulled out from the drilling surface. That is, an excavator having a rod of a required length is moved in equilibrium along a guide rail of a required length, so that an operator can automatically perform a boring operation without holding it.

Hereinafter, a rock drilling method and a rock drilling apparatus according to the present invention will be described based on an embodiment shown in the drawings.

FIG. 1 is a side view showing an embodiment of an excavating device according to the present invention, and FIG. 2 is a plan view thereof. In the figure, 1 is a guide rail composed of two pipes 1a and 1a having a required length (for example, a length equal to or greater than the depth of a hole to be drilled such as about 3 m), 2
Is a guide body which is engaged with the guide rail 1 and is movable in the longitudinal direction, 3 is a known rock drilling machine which operates by supplying compressed air to the air pipe 4, 5 is mounted on the rock drilling machine 3, and a tip portion It is a rod that has a drilling tip (not shown) and rotates and vibrates. As shown in FIG. 3, the guide body 2 is constructed by bridging brackets 7 and 8 to the end portions of the guide tubes 6 and 6 arranged in parallel at a predetermined interval, and welding and fixing the brackets 7 and 8 respectively. And the bracket 8 is provided with shaft holes 9 and 9 respectively, and the bracket 8 is a trapezoidal plate body 11 provided with a substantially semi-circular curved portion 10 for supporting the curved surface of the rock drilling machine 3. Is fixed by welding. A bracket 12 provided on the rock drill 3 is fitted into the bracket 7, and a shaft 13 (see FIGS. 1 and 2) is passed through the rock drill 3 so that the rock drill 3 has a bracket 8 centered on the shaft 8.
It is connected to the guide body 2 so as to be rotatable in a direction away from. A stopper 14 for connecting the pipes 1a, 1a is provided at the upper end of the guide rail 1, and a stopper hole 15 is formed in the stopper 14.

Therefore, explaining an example of use of the rock drilling device, as shown in FIG. 4, the lower end portion of the guide rail 1 is brought into contact with the retaining wall 16 at the position where the retaining wall 16 is to be perforated, and the lower end portion thereof is contacted. A quadrilateral temporary frame 17 is connected to and erected at a desired angle, a sheave 18 is connected to a stopper 14 at its upper end through a locking hole 15, and a wire rope or other rope is connected to the sheave 18. 19 are hung around, and both ends of the cord 19 are separated from each other at a site above the retaining wall 16 and are connected to existing anchor bolts, fixtures 20, 20 inserted into drain holes, and the like. That is, the guide rail 1 is erected and supported by the retaining wall 16 at three points and is stable. In addition, a further sheave is added to the stopper 14.
21 are connected to each other through locking holes 15, and the sheave 21 is connected to another cord.
22 is wound, and one end of the cord 22 is guided to the guide body 2.
Alternatively, it is connected to the upper part of the rock drill 3 and the other end is hung in the vicinity of the worker. Further, the rope 24 is provided at a predetermined position of the guide body 2.
Are connected.

Therefore, compressed air is supplied to the rock drilling machine 3 via the air hose 25 to rotate and vibrate the rod 5, and a hole 26 is bored in the retaining wall 16 with a drilling tip at its tip. The guide 5 and the rock drill 3 have their own weight applied to the rod 5, and the load is always applied to the drilling tip, and a force that cuts into the hole 26 acts. Therefore, the drilling tip at the tip of the rod 5 of the rock drill 3 makes a hole, and the weight of the rock drill 3 and the guide body 2 is applied to the rod 3,
The guide body 2 slides on the guide rail 1 and descends, and the rod 5
Goes into the ground and the drilling work is performed automatically. In addition,
Although excavation by self-weight is possible in almost all places, if the boring by self-weight does not proceed due to the nature of the ground, etc., the rope 24 connected to the guide body 2 is towed toward the inclined surface 16 for cutting. If the rock machine 3 is assisted so as to be pressed against the excavation site, the boring work is automatically performed. And rod 5
Is almost completely put into the retaining wall 16 and the drilling work is completed,
Stop the operation of the rock drill 3 and pull the cord 22 toward the sheave 21 to move the guide 2 upward along the guide rail 1,
All you have to do is pull out the rod 5. Then, this work is repeated at each excavation site. The guide rail 1 and the erection scaffold 17 can be manufactured by using conventional pipes for erection of the scaffold as they are. Further, the lower end of the guide rail 11 is fixed to the erection scaffold 17, and at that time, a cylinder is attached orthogonally to the lower end of the guide rail 11 and the pipe of the erection scaffold is inserted into this cylinder. If the structure is fixed by fixing, the fixing to the erection scaffold 17 can be easily performed.

Advantageous Effects of Invention According to the present invention described above, a rock drill is installed on a simple guide rail installed at a work place without holding and operating the rock drill and without requiring a large-scale scaffold. Since it is possible to easily and automatically perform a predetermined drilling work by wearing the, the accuracy and work efficiency of the drilling work can be improved, and the burden on the worker can be reduced. It is possible to prevent health problems such as white wax caused by vibration and is economical because there is no need to assemble or remove a large-scale scaffold. In addition, since all the members can be carried by hand, they are very effective in work such as in the mountains. Furthermore, by using a guide rail and a rod that match the drilling depth, a long hole can be drilled at once, and work efficiency and accuracy are improved.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a rock drilling device according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a perspective view of a guide body, and FIG. 1 ... Guide rail, 2 ... Guide body 3 ... Rock drill, 4 ... Air pipe 5 ... Rod, 7,8 ... Bracket 14 ... Stopper, 16 ... Retaining wall 19,22, 24 ...... Line

Claims (2)

[Claims] 1. A guide rail having a required length is erected at a desired angle with respect to a perforated surface such as a retaining wall to stably support the guide rail so as not to fall, and the guide rail is used as a guide body movable in the longitudinal direction. A rock drill is mounted, and a rod of a required length having a drill tip at the tip is mounted on the rock drill, and a rope is connected to the guide body, and the drill is operated to operate the drill tip. A rock drilling method, which comprises pressing against a surface, activating a rock drilling machine to make a hole, and then pulling out a rod through the rope. 2. A guide rail composed of a pair of pipes of a required length, a line for erected the guide rail at a desired angle on a piercing surface, and a guide for movably engaging the guide rail in the longitudinal direction. Body, a rope for moving and operating the guide body in the longitudinal direction of the guide rail, a rock drill that is detachably fixed to the guide body, and a required length that is detachably attached to the rock drill. The rod comprises a rod and a drilling tip attached to the tip of the rod, and the guide body equidistantly separates a cylinder into which the pair of pipes are fitted, and connects both ends thereof with brackets. , One of the brackets is pivotally connected to one end of the rock drill so as to be rotatable, and the other has a bending portion that receives the other end of the rock drill so that the rock drill is removable. Rock drilling equipment.