JP2008025972A - Automatic explosive loading device and explosive loading method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic explosive loading device and an explosive loading method capable of attaining labor saving in a shortened operation time by automating and simplifying operations, and improving safety by minimizing operations near a blast hole. <P>SOLUTION: The automatic explosive loading device 1 which is disposed on a frame 15 of a drill jumbo 15 comprises a loading pipe 31 provided so as to protrude and retract in the charging direction X of a parent die D. The position of the blast hole 3 is stored in a control mechanism 50 as blast hole information. The frame 15 is moved in reference to the blast hole information so that the loading pipe 31 concentrically faces the blast hole 3 to supply the parent die D to a loading position R of the loading pipe 31, the loading pipe 31 is then moved to the deepest part 3b of the blast hole 3 while engagingly locking the parent die D to the inside of the tip 31a of the loading pipe 31, and an additional die M is forcibly fed into the loading pipe 31 while pulling out the loading pipe 31. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an automatic explosive loading apparatus and an explosive loading method for loading explosives into a blast hole drilled in a rock such as a face in a tunnel constructed by a blasting method.

Conventionally, in a tunnel site constructed by the blasting method, the explosive is loaded into the blasting hole manually by an operator's hand if the explosive is packed in a cylindrical shape with paper or the like. Was common. This loading work was a work that pushed the explosives sequentially into the blasting hole using a long bar, which was a heavy labor. Therefore, in recent years, explosives of parent dynamite (hereinafter abbreviated as “parent die”) and additional dynamite (hereinafter abbreviated as “increased die”) from a position away from the rock using a hose or pipe are used. A technique for loading a blast hole is being established (see, for example, Patent Document 1).
In Patent Document 1, a worker who is on a drill jumbo base (cage) inserts and fixes the leading end of a loading pipe into a blast hole drilled in a rock, and is attached to the base end of a hose connected to the loading pipe. The compressed air is pumped from the loading machine provided toward the tip of the loading pipe, and the parent die and the additional die are moved together with the compressed air through the inside of the loading hose so that they reach the inside of the blasting hole and are loaded. Is. After confirming that the worker on the pedestal has inserted and placed the loading pipe into the blasting hole, the loading machine can be remotely operated by a hand switch, and the loading operation can be performed by one person, saving labor. Is intended.
JP 9-126700 A

However, in Patent Document 1, the work of inserting and fixing the loading pipe to which the hose is connected to the blast hole must be performed on a frame that is a narrow work space, and the workability is poor, depending on the skill and familiarity of the worker. There is a problem that the work efficiency is different, the work efficiency is lowered, and the work cycle time is increased due to variations, which affects the work period.
Also, it is dangerous for workers on board to insert and fix the loading pipe in the blast hole, and it is dangerous for workers to approach the face where there is a risk of falling rocks or collapse. there were.
For this reason, there has been a demand for an explosive loading technique that improves safety and saves labor.

  The present invention has been made in view of the above-mentioned problems. By automating and simplifying the work, the work time can be shortened, labor saving can be achieved, and the work approaching the blast hole can be reduced to be safe. An object of the present invention is to provide an automatic explosive loading device and a method for loading explosives, which are improved.

In order to achieve the above object, the explosive automatic loading device according to the present invention is an automatic explosive loading device for loading a parent dynamite and increased dynamite to increase the blasting force into a blasting hole. A loading pipe that can be moved forward and backward in the loading direction of the explosive, a parent die supply mechanism that is provided in front of the loading pipe on the gantry and can supply the parent dynamite coaxially with the loading pipe, and communicates with the rear of the loading pipe A loading hose connected to each other and an explosive loading mechanism that is connected to the loading hose and feeds additional dynamite through the inside of the loading hose and the loading pipe. The parent dynamite can be inserted into the tip of the loading pipe. It is characterized by being said.
Further, in the explosive loading method according to the present invention, the explosive loading method for loading the parent dynamite and the increased dynamite for increasing the blasting force into the blasting hole, the tip of the loading pipe capable of moving back and forth in the loading direction of the explosive, Positioned in the blasting hole via the parent die supply mechanism that is positioned coaxially with the loading pipe and supplies the parent dynamite, the parent dynamite is fed coaxially with the loading pipe, and the parent dynamite is positioned inside the tip of the loading pipe In such a state, the loading pipe is moved to the innermost part of the blasting hole, and while pulling out the inside of the loading pipe, the additional dynamite is pumped and supplied from the loading pipe to load the parent dynamite and the increased dynamite into the blasting hole. It is characterized by.
In the present invention, with the parent dynamite being supplied to the tip of the loading pipe, the loading pipe is moved in the loading direction, the tip reaches the innermost part of the blasting hole, and the additional dynamite is added from the rear of the loading pipe. Simultaneously with feeding, the dynamite and the parent dynamite can be loaded into the blast hole by pulling out the loading pipe from the blast hole.

In the explosive automatic loading device according to the present invention, the position of the blasting hole is stored as blasting hole information, the movement of the gantry is controlled so that the tip of the loading pipe faces the blasting hole coaxially with reference to the blasting hole information. It is preferable.
In the explosive loading method according to the present invention, the position of the blasting hole is stored in advance as blasting hole information, and when loading the explosive, the blasting hole information is referred to, and the tip of the loading pipe is coaxially opposed to the blasting hole. It is preferable to control the position.
In the present invention, the position of the drilled blast hole is stored in advance as blast hole information, and based on this blast hole information, the gantry is moved and positioned at a position where the tip of the loading pipe is coaxially opposed to the blast hole. Can do.

In the automatic explosive loading device according to the present invention, it is preferable that the parent die supply mechanism is provided with a parent die cassette that holds a plurality of parent dynamites and sequentially moves the held parent dynamites to the loading supply position. .
In the present invention, since a plurality of parent dynamites can be stored in the parent die cassette in advance and the parent dynamite can be sequentially moved to the loading supply position, the number of blast holes corresponding to the number of parent dynamites stored in the parent die cassette can be reduced. Loading operation can be performed continuously.

In the explosive loading method according to the present invention, it is preferable that the blasting hole information is associated with the amount of additional dynamite charge corresponding to the blasting hole and the pulling speed of the loading pipe.
In the present invention, it is possible to load a charge amount of the additional dynamite necessary for a predetermined blast hole, and by supplying the pressure in the loading pipe by pulling out the loading pipe at a drawing speed corresponding to the amount of the charging. The explosive charge can be surely carried out without clogging or remaining dynamite.

  According to the automatic explosive loading device of the present invention, the loading pipe provided on the gantry can be automatically positioned so as to be coaxial with the blasting hole to be loaded, and the explosives of the parent dynamite and the increased dynamite can be used. Since the blast hole can be automatically loaded, the loading operation by the worker is simplified and labor saving can be achieved. Therefore, the work cycle time can be shortened, so that the work period can be shortened. This also has the effect of reducing construction costs. In addition, the automatic loading of explosives eliminates the need for workers to perform loading work at a position close to the face, reducing the occurrence of injuries due to the collapse or peeling of the face, and improving safety. .

Hereinafter, an automatic explosive loading apparatus and explosive loading method according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a side view showing an overall outline when an explosive automatic loading device according to an embodiment of the present invention is mounted on a drill jumbo, and FIG. 2 is a side view showing the entire explosive automatic loading device mounted on a gantry, FIG. 3 is a plan view, FIG. 4 is a cross-sectional view taken along line AA of the parent die cassette shown in FIG. 3, FIG. 5 is a partially broken perspective view showing the parent die supply mechanism, and FIG. (A) is a front view thereof, (b) is a cross-sectional view taken along line BB of FIG. 6 (a), and FIG. 7 is a view showing a tip portion of a loading pipe, (a) Is a perspective view, (b) is a side view thereof, FIGS. 8 (a) to (c) are process diagrams showing a state in which a parent die is pushed by a loading pipe, FIG. 9 is a flowchart showing a loading operation procedure, and FIG. (a) thru | or (d) are process drawings at the time of loading a parent die and an additional die into a blasting hole.

As shown in FIG. 1, the explosive automatic loading device 1 according to the present embodiment has a long guide for a blasting hole 3 formed by drilling a face 2a to a predetermined depth in a tunnel 2 constructed by a blasting method. This is applied to an operation of loading one cylindrical parent dynamite (hereinafter referred to as “parent die D”) to which one end of the fire tube 5 (see FIG. 2) is connected. That is, the parent die D is loaded in the innermost part 3b of the blasting hole 3, and then increased dynamite (hereinafter referred to as "increased die M") made of, for example, bulk explosive in order to increase the blasting force at the time of blasting. 10d) is loaded by a loading pump 42 (see FIGS. 2 and 3) driven by compressed air.
The automatic explosive loading device 1 loads the parent die D and the additional die M in the loading operation.
Here, in the following description, the direction in which the parent die D and the additional die M are loaded is referred to as “loading direction X”, and the description regarding the direction toward the face 2a is “forward”, “forward”, etc. The direction is “backward”, “backward” or the like.

As shown in FIG. 1, the automatic explosive loading device 1 is mounted on a frame 15 of a well-known drill jumbo 10 used for tunnel work such as drilling of a blast hole 3.
Here, the drill jumbo 10 includes a traveling carriage 11 on which a driving power unit (not shown) and a driver's cab 12 are mounted, and a drilling boom 14 that supports the rock drill 13 on the front side of the traveling carriage 11 in a turnable manner. And a gantry 15 that forms a work gantry on which an operator can board, and a gantry boom 16 that supports the gantry 15 in a turnable manner. The drilling boom 14 and the gantry boom 16 have a structure in which their support portions 14a and 16a are pivotally connected to the tip of the traveling carriage 11, respectively, and the rock drilling machine 13 and the gantry 15 are on the face 2a. It is possible to move to the whole range.
And as the rock drilling machine 13, the well-known thing which drills the blasting hole 3 in a rock by the striking motion and rotary action of a drilling drill is employ | adopted.

Hereinafter, the configuration of the explosive automatic loading device 1 will be described with reference to the drawings.
As shown in FIGS. 2 and 3, the automatic explosive loading device 1 is provided so that a parent die D supplied to a loading supply position R that is a push-out position to the blast hole 3 can be advanced and retracted in the loading direction X direction. Explosive which is pushed into the blasting hole 3 by the loaded pipe 31 and connected to the rear end 31b of the loaded pipe 31 in a state where the loaded hose 32 is in communication, the rear end 32b of the loaded hose 32 is increased and the die M is accommodated. Connected to the loading mechanism 40. In a state where the parent die D is inserted into the blasting hole 3 by the loading pipe 31, the additional die M is pumped by the explosive loading mechanism 40, and the additional die M is loaded into the blasting hole 3 through the loading hose 32 and the loading pipe 31. To do.

The loading pipe 31 is a hollow cylindrical long member, and is arranged so as to be coaxial with the rear side of the parent die D supplied to the loading supply position R.
As shown in FIGS. 2 and 3, the loading hose 32 is made of a synthetic resin hose, a rubber hose, or the like, and has substantially the same outer diameter as the loading pipe 31. That is, the loading hose 32 forms a transfer path for the additional die M to the blasting hole 3 via the loading pipe 31.

That is, as shown in FIG. 1, the schematic configuration of the automatic explosive loading device 1 includes a parent die supply mechanism 20 that supplies the parent die D to the loading supply position R, and a loading pipe that moves the loading pipe 31 forward and backward in the loading direction X. It comprises a feeding mechanism 30 and an explosive loading mechanism 40 that feeds the additional die M through the loading pipe 31 by pressure.
A control mechanism 50 for automatically controlling the base 15 of the drill jumbo 10 by a computer is provided at a predetermined position of the main body 13 of the drill jumbo 10. The parent die supply mechanism 20, the loading pipe feeding mechanism 30, and the explosive loading mechanism 40 are integrally provided on the apparatus base 1a (see FIG. 2).

  As shown in FIG. 4, the parent die supply mechanism 20 is arranged in front of the apparatus base 1 a (see FIG. 2) and moves a parent die cassette 22 that houses a plurality of parent dies D. A cassette holder 23 that can be held, a rack-shaped cassette feed guide 24 that is attached to the lower surface 22b of the parent die cassette 22 with the tooth surface facing downward, and the parent die cassette 22 that is meshed with the cassette feed guide 24 The first drive unit 25 is a schematic configuration including a gear that feeds and moves in a lateral direction (arrow Y direction) orthogonal to the loading direction X.

As shown in FIG. 5, the parent die cassette 22 has a box shape, and circular hole penetrating portions 22a, 22a,... (This embodiment) in which circular holes larger than the outer diameter of the parent die D penetrate in one direction. Are formed in parallel with a predetermined interval in the arrow Y direction.
6A and 6B, the inner peripheral surface of the circular hole penetrating portion 22a is biased toward the center of the circular hole penetrating portion 22a by the action of a spring such as a leaf spring. A parent die holding portion 22A is provided. The parent die holding portions 22A are provided at three locations at predetermined intervals in the circumferential direction of the circular hole penetrating portion 22a. As a result, the parent die D inserted into each circular hole penetrating portion 22a is held from three directions by each parent die holding portion 22A.

As shown in FIGS. 4 and 5, the cassette holder 23 is larger than the parent die cassette 22, and stores the parent die cassette 22 so as to be capable of reciprocating in the arrow Y direction perpendicular to the loading direction X. . Then, the parent die D held in the parent die cassette 22 at this time is set in the loading direction X.
2 and 3, both side surfaces 23a and 23b of the cassette holder 23 communicate with the circular hole penetrating portion 22a so that one parent die D loaded in the blasting hole 3 is supplied. Loading supply ports 21a and 21b are formed at the same height position. The loading supply ports 21 a and 21 b are coaxial with the parent die D supplied to the loading supply position R.

Further, as shown in FIG. 4, the first drive unit 25 is a gear that is rotated by a drive motor (not shown) or the like, and meshes with a cassette feed guide 24 fixed to the parent die cassette 22, in a predetermined state. It is fixed in position to be rotatable. By the forward / reverse rotation of the first drive unit 25, the parent die cassette 22 can be moved in the lateral direction (Y direction shown in FIG. 4). Accordingly, each parent die D held in the parent die cassette 22 is sequentially moved one by one in the horizontal direction (Y direction) and supplied to the loading supply position R.
As described above, in the parent die supply mechanism 20, a plurality of parent dies D can be stored in the parent die cassette 22 in advance, and the parent dies D can be sequentially moved to the loading supply position R. The loading operation can be continuously performed on the same number of blast holes 3 as the number of dies D stored.

Next, the loading pipe feeding mechanism 30 will be described with reference to the drawings.
As shown in FIGS. 2 and 3, the loading pipe feeding mechanism 30 is loaded along a pair of parallel guide rails 33, 33 extending in the loading direction X on the apparatus base 1 a and the guide rails 33, 33. A pipe holder 34 that slides in the direction X and a second drive unit 35 that drives the pipe holder 34 are schematically configured.
The pipe holder 34 is fixed so as to sandwich the outer periphery of a predetermined position (position T) on the rear end 31 b side of the loading pipe 31.

As shown in FIG. 2, the second drive unit 35 has a structure in which a drive cable 39 is looped around a rotary drive roller 37 and a fixed roller 38, and the pipe holder 34 is rotated by forward and reverse rotation of the rotary drive roller 37. It is possible to move back and forth (moving in the loading direction X). Thereby, the loading pipe 31 is sent out or pulled back in the loading direction X as the pipe holder 34 moves. The feed movement range (feed length) at this time corresponds to an extrusion length at which the above-described loading pipe 31 can reach the innermost part 3a of the blast hole 3.
This mechanism is not limited to the above structure. For example, a hydraulically driven cylinder (not shown) is fixed to the apparatus base 1a, a pipe holder 34 is attached to the tip of the cylinder, and the expansion and contraction operation is performed by hydraulic oil supply control. Thus, the pipe holder 34 may be moved in the front-rear direction.

  As shown in FIG. 3, the loading hose 32 has a length dimension so as to be interlocked with the feeding movement of the loading pipe 31, and includes a fixed support portion 36 b and a loading hose drive holding spring cylinder 36. It is arranged in a substantially S shape in plan view in a curved state at two locations with the tip 36a. The loading hose drive / holding spring cylinder 36 incorporates a spring (not shown), and the cylinder is retracted (compressed) by a load when the loading pipe 31 is fed forward and moved. The loading hose 32 is held at a constant tension regardless of the feeding movement of the loading pipe 31 by the action of the spring.

Here, a specific configuration, operation, and the like of the loading pipe 31 will be described.
As shown in FIGS. 7A and 7B, a slit 31 c is formed in the longitudinal direction at the tip 31 a of the loading pipe 31. Further, an additional die M is loaded at a position rearward from the tip 31e of the tip 31a by a length dimension substantially equal to the length of the parent die D. Thereby, the loading pipe 31 can insert the parent die D inside the tip portion 31a.

Here, the length dimension of the loading pipe 31 is determined by the length of the blasting hole 3, and is a length that can sufficiently reach the innermost part 3b of the blasting hole 3 from the position of the gantry 15 during the loading operation ( (See FIG. 1).
The loading pipe 31 has an inner diameter at which the parent die D can be inserted and held inside the tip end portion 31 a and has an outer diameter smaller than the blast hole 3. For example, when the axial length of the blast hole 3 is 1 to 3 m, the length of the loading pipe 31 is about 2 to 4 m.

As shown in FIGS. 8A and 8B, the loading pipe 31 configured in this way has a circular hole penetrating portion of the parent die cassette 22 located at the loading supply position R by feeding movement in the loading direction X. 22a is entered and locked in a state where the parent die D is pushed into the inside of the tip 31a of the loading pipe 31. At this time, the parent die D is locked with the rear portion of the parent die D coming into contact with the increased die loading tip position of the tip portion 31a.
Note that the parent die D can be smoothly and reliably inserted into the distal end portion 31a by feeding and moving the loading pipe 31 so that the parent die holding portion 22A passes through the slit 31c of the distal end portion 31a.

Next, a loading mechanism 40 for feeding the additional die M to the blasting hole 3 by pressure will be described with reference to the drawings.
As shown in FIGS. 2 and 3, the loading mechanism 40 includes an explosive supply hopper 41 in the form of a hopper that is disposed on the rear side of the apparatus mount 1 a and accommodates a die M having a predetermined charge amount, and an explosive. It comprises a loading pump 42 driven by compressed air that feeds the additional die M in the supply hopper 41 toward the loading pipe 31 side. The upper surface of the explosive supply hopper 41 can be opened and closed by an open / close lid 41a (see FIG. 2).

The loading pump 42 is provided below the explosive supply hopper 41, has a discharge port 42a that opens toward the front side, and the loading hose 32 is connected to and connected to the discharge port 42a. In addition, an air hose 42A is connected to the loading pump 42 in order to supply compressed air set to a predetermined pressure. For example, the air hose 42A is piped to the traveling carriage 11 of the drill jumbo 10 shown in FIG. Is fixed.
Compressed air is supplied to the charging pump 42 configured as described above, and the charging pump 42 is rotated by the compressed air, whereby the additional die M discharged from the explosive supply hopper 41 passes through the charging hose 32. Can be pumped.

Next, the configuration of the control mechanism 50 that controls the gantry 15 and the explosive automatic loading device 1 will be described.
A control mechanism 50 shown in FIG. 1 includes a computer including an input unit, a processing unit, an output unit, and the like, although not particularly illustrated. In this control mechanism 50, when the blasting hole 3 is drilled by the rock drill 13 of the drill jumbo 10, hole numbers are associated with all of the blasting holes 3, and the first of the hole openings 3a corresponding to the hole numbers is provided. A three-dimensional coordinate value of the coordinate P1 (X1, Y1, Z1) and the second coordinate P2 (X2, Y2, Z2) of the innermost part 3b is stored as blast hole information.
When the master die D and the additional die M are loaded, the blast hole information is referred to by the computer control to move the base 15 of the drill jumbo 10, and the loading pipe 31 (loading supply port 21) is moved to the blast hole 3. It is set as the structure which can be controlled so that it may position automatically so that the hole 3a of this may be coaxially opposed.

  Further, in the blasting hole information described above, according to each blasting hole 3, the amount of charge (g) of the additional die M and the drawing speed (cm / sec) when the loading pipe 31 is pulled out from the blasting hole 3 are included. Input in advance through the input unit of the control mechanism 50. As a result, the required amount of additional die M can be loaded into a predetermined blasting hole 3, and the loading pipe 31 is pulled out from the blasting hole 3 at a pulling speed corresponding to the amount of charging. It is possible to reliably charge the explosive without clogging or remaining in the additional die M fed and fed in the pipe 31.

Next, an explosive loading work procedure using the above-described automatic explosive loading device 1 will be described with reference to a work flow chart of FIG.
First, as shown in FIG. 1, the traveling carriage 11 of the drill jumbo 10 is traveled, moved to the vicinity of the face 2a to be blown up, and the rock drill 13 is sequentially moved to the drilling planned position of the face 2a according to the blasting pattern. A plurality of blast holes 3, 3,... Having a predetermined length are driven by driving (step S1).
Then, each blasting hole 3 drilled at this time is associated with the hole number and the coordinate value (first coordinate P1, second coordinate P2) of each blasting hole 3, and further, the amount of charge corresponding to each blasting hole 3 Then, the drawing speed in the loading pipe 31 is input from an input unit (not shown) or the like, stored in the control mechanism 50, and set (step S2).

  Then, as shown in FIG. 4, the parent die D corresponding to the hole number is set in the parent die cassette 22 (step S3). As a result, one parent die D is supplied to the loading supply position R. Further, a predetermined amount of additional die M is inserted into the explosive supply hopper 41 of the explosive loading mechanism 40 (see FIGS. 2 and 3). The work so far is mainly done manually.

  Next, the control mechanism 50 is activated, and the first coordinate P1 (X1, Y1, Z1) of the blast hole 3 corresponding to the preset hole number and the second coordinate P2 of the innermost part 3b are controlled by the computer control. With reference to the three-dimensional coordinate values of (X2, Y2, Z2), the mount 15 of the drill jumbo 10 is automatically moved, and the loading pipe 31 (loading supply position R) is coaxially opposed to the hole 3a of the blasting hole 3 Then, positioning is performed (step S4).

Subsequently, the second drive unit 35 of FIG. 3 is driven to feed the pipe holder 34 in the loading direction X, and as shown in FIGS. 8A and 8B, the loading pipe 31 is advanced about 10 cm, for example, The parent die D is inserted into the distal end portion 31a of the loading pipe 31 and placed (step S5).
Then, the second drive unit 35 is further rotated, and the loading pipe 31 is moved forward to reach the innermost part 3a of the blast hole 3 as shown in FIGS. 8 (c), 10 (a) and 10 (b). (Step S6).

Next, as shown in FIG. 10 (c), a charge increasing die M corresponding to a preset hole number of the blast hole 3 is supplied from the explosive supply hopper 41 to the discharge port 42 a of the loading pump 42. To do. Then, referring to the drawing speed of the loading pipe 31 of the blasting hole information, the second driving unit 35 and the loading pump 42 shown in FIG. 31 is pulled out so that the parent die D and the additional die M remain in the blast hole 3 (step S7). That is, the loading pump 42 is driven by compressed air, and the additional die M is sent out toward the blasting hole 3, transported through the loading hose 32 and the loading pipe 31, and the parent die D loaded in the blasting hole 3. It is continuously loaded backward.
When a predetermined amount of the additional die M is loaded, as shown in FIG. 10 (d), the pressure feed supply of the additional die M is stopped and the loading pipe 31 is pulled out to the blast hole. At this time, the loaded additional die M and the additional die M in the loading pipe 31 are naturally cut off at the tip of the loading pipe 31. When the loading pipe 31 is pulled out to the blast hole, the loading pump 42 is rotated in the reverse direction, and the leading end of the additional die M is pulled back from the leading end of the loading pipe 31 toward the loading pump.

Thereafter, the loading operation is sequentially performed on the other blast holes 3, 3,.
As shown in FIG. 4, the parent die D held in the parent die cassette 22 is sequentially moved to the loading supply position R by driving the first drive unit 25, and the parent die cassette 22 is emptied. At that time, the parent die D to be loaded next is set in the empty circular hole penetrating portion 22a while returning the parent die cassette 22 to the starting side of the lateral movement (in the direction of arrow Y).

  As described above, in the automatic explosive loading apparatus and explosive loading method according to the present embodiment, the loading pipe 31 provided on the mount 15 of the drill jumbo 10 is automatically positioned so as to be coaxial with the blasting hole 3 to be loaded. In addition, the explosives of the parent die D and the additional die M can be automatically loaded into the blast hole 3, so that the loading operation by the worker is simplified and labor saving can be achieved. Therefore, the work cycle time can be shortened, so that the work period can be shortened. This also has the effect of reducing construction costs. In addition, since automatic loading of explosives is possible, there is no need for a worker to perform loading work at a position close to the face 2a, thereby reducing the occurrence of injuries due to collapse or peeling of the face 2a, and improving safety. Can do.

As mentioned above, although embodiment of the automatic explosive loading apparatus and explosive loading method by this invention was described, this invention is not limited to said embodiment, It can change suitably in the range which does not deviate from the meaning. .
For example, in the present embodiment, the number of parent dies D held in the parent die cassette 22 is five, but this number can be set arbitrarily.

It is a side view which shows the whole outline | summary when the explosive automatic loading apparatus by embodiment of this invention is mounted in a drill jumbo. It is a side view which shows the whole explosive automatic loading apparatus mounted on the mount frame. It is a top view which shows the whole explosive automatic loading apparatus mounted on the mount frame. FIG. 4 is a cross-sectional view taken along line AA of the parent die cassette shown in FIG. 3. It is a partially broken perspective view which shows a parent die supply mechanism. It is a figure which shows the circular hole penetration part of a parent die cassette, Comprising: (a) is the front view, (b) is the BB sectional drawing of Fig.6 (a). It is a figure which shows the front-end | tip part of a loading pipe, (a) is the perspective view, (b) is the side view. (A) thru | or (c) are process drawings which show the state which pushes in a parent die with a loading pipe. It is a flowchart which shows a loading operation | movement procedure. (A) thru | or (d) are process drawings at the time of loading a parent die and an additional die into a blasting hole.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Explosive automatic loading apparatus 2 Tunnel 3 Blast hole 10 Drill jumbo 15 Base 20 Parent die supply mechanism 21 Loading supply port 22 Parent die cassette 23 Cassette holder 30 Loading pipe drive mechanism 31 Loading pipe 32 Loading hose 40 Explosive loading mechanism 50 Control mechanism D Parent die M Additional die R Loading supply position X Loading direction

Claims (6)

An explosive automatic loading device for loading a blasting hole with a parent dynamite and increased dynamite to increase blasting power,
A frame,
A loading pipe provided to be able to advance and retreat in the loading direction of the explosive on the mount;
A parent die supply mechanism provided in front of the loading pipe on the gantry and capable of supplying the parent dynamite coaxially with the loading pipe;
A loading hose connected in communication with the rear of the loading pipe;
An explosive loading mechanism connected to the loading hose and passing through the inside of the loading hose and the loading pipe to pressure-feed the increased dynamite;
Consists of
The explosive automatic loading device, wherein the parent dynamite can be inserted into the tip of the loading pipe.   The position of the blasting hole is stored as blasting hole information, the cradle is moved and controlled with reference to the blasting hole information so that a tip of the loading pipe is coaxially opposed to the blasting hole. The explosive automatic loading device according to 1.   3. The parent die supply mechanism is provided with a parent die cassette that holds a plurality of parent dynamites and sequentially moves the held parent dynamites to the loading supply position. 4. Automatic explosive loading device. An explosive loading method of loading a blast hole with parent dynamite and increased dynamite to increase blasting power,
A loading pipe tip that can be advanced and retracted in the loading direction of the explosive is positioned coaxially with the loading pipe and positioned in the blast hole via a parent die supply mechanism that supplies a parent dynamite,
Supplying the parent dynamite coaxially with the loading pipe;
With the parent dynamite positioned inside the tip of the loading pipe, the loading pipe is moved to the innermost part of the blast hole,
An explosive loading method characterized in that while the inside of the loading pipe is pulled out, the increased dynamite is pumped and supplied from the loading pipe to load the parent dynamite and the increased dynamite into the blast hole.   The position of the blast hole is stored in advance as blast hole information, and when the explosive is loaded, the blast hole information is referred to and controlled so that the tip of the loading pipe is coaxially opposed to the blast hole. The explosive loading method according to claim 4, wherein the explosive loading method is performed.   6. The explosive loading method according to claim 5, wherein the blasting hole information is associated with a charge amount of the increased dynamite corresponding to the blasting hole and a drawing speed of the loading pipe. .

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