KR101863345B1 - System for Drilling Depth Monitoring and Method thereof - Google Patents

Abstract

According to a system and a method for monitoring a drilling depth for a rock drill, of the present invention, the system is configured using a wire displacement sensor so that a drilling monitoring system can be applied to a cylinder feed system, and the length of a hose reel, which moves only a feed length that is half the feed length of a drifter, is measured using the wire displacement sensor such that a drilling depth can be monitored in proportion to a signal output from the wire displacement sensor, such that the wire displacement sensor does not measure the long movement distance of the drifter but relatively moves and measures only half, thereby being less affected by the swaying of a wire and external vibrations, and the system for monitoring a drilling depth can be mounted in a cylinder feed system without a fixed rotary body, instead of a method for detecting a drilling depth according to the rotation amount of a rotary body having an encoder.

Description

Technical Field [0001] The present invention relates to a drilling depth monitoring system and method for a rock drill,

The present invention relates to a drilling depth monitoring system and method for a rock drill, and more particularly, to a drilling depth monitoring system and method for a rock drill capable of monitoring a drilling depth by measuring a direct transfer length using a wire displacement sensor .

In general, rock drills are used to break rocks or drill blast holes for the purpose of excavation and removal of rocks from various tunnel construction sites such as road or tunnel construction, tunnel construction, subway construction, extraction of ore from the quarry Hydraulic motors or hydraulic cylinders have been used to move the drifter forward or backward on the mast, which provides the drill bit with an exciting force in such rock drills.

First, in the method of using a hydraulic motor, a hydraulic motor is installed at one end of a mast, and a drive shaft of the hydraulic motor and a gear installed at the other end of the mast are connected to each other by a power transmission means such as a chain, .

In the method of moving the drifter forward and backward by using the hydraulic motor, an encoder is attached to the drive shaft of the hydraulic motor to measure the drilling depth, and the drilling depth is measured And displayed.

On the other hand, in the method of moving the drifter forward and backward using the hydraulic cylinder, a separate position measuring device is provided, and an encoder is attached to the position measuring device to sense the signal generated from the encoder, thereby measuring and displaying the depth of perforation .

However, as described above, in the method of monitoring the punch depth by using the encoder, there is a need to have a fixed body that can always attach and install an encoder on the mast. Therefore, when there is no fixed rotating body, the encoder can not be installed. There was no problem.

Korean Registered Patent Publication No. 10-1388215

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to construct a system using a wire displacement sensor so that a drilling monitoring system can be applied to a cylinder feed system, By measuring the length of the hose reel which moves only half the conveying length of the drifter by using the wire displacement sensor, the depth of drilling can be monitored in proportion to the signal outputted from the wire displacement sensor, The displacement sensor measures the moving distance of the horseshoe which moves relatively halfway without measuring the long moving distance of the drifter, thereby being less influenced by the wobbling and external vibration of the wire, In a cylinder feed system without a fixed rotating body instead of a depth detection system, For rock that can be equipped with a drilling machine sintering to provide a drilling depth monitoring system and method.

In order to accomplish the above object, according to the present invention, there is provided a drill depth monitoring system for a rock drill, comprising: a rod exchange unit installed on a side surface of a mast for receiving a plurality of excavation rods, ; A central portion provided at the front of the mast for guiding the excavation rod so as to maintain straightness of the perforation and pressing and fixing the excavation rod when the excavation rod is connected to the drifter or separated from the drifter; A drifter table installed on the mast for supporting a drifter to which a drilling rod for performing drilling is fixed, and moving forward using a forwarding wire connected to the transferring cylinder as the transferring cylinder is extended and contracted; A hoisting unit installed on the body of the transfer cylinder to connect the drifter table and the reverse wire and to move the drifter table backward as the transfer cylinder is extended and contracted; And a wire displacement sensor which is installed at one end of the mast and connected to the hoselike through a displacement wire and senses a moving length of the horseshoe as the hoselay is moved.

When the closing signal is outputted from the central opening / closing switch, the excavating rod is pressed. When the open signal is outputted from the central opening / closing switch, the pressing of the excavating rod is released And the drifter further includes a drifter portion pressure switch, and when the pressing signal is outputted from the drifter portion pressure switch, the drifter may be formed to rotate in reverse to separate the excavating rod.

The wire displacement sensor may be configured to monitor the drilling depth by measuring a moving distance of the hoisting movement which is shifted by half relative to the drifter moving distance.

A closing signal is outputted from the central opening / closing switch of the central part, monitoring of the drilling depth is stopped when a pressing signal is outputted from the drifter part pressure switch of the drifter; When monitoring is stopped and an open signal is output from the central secondary open / close switch of the central unit, the monitoring of the perforation depth may be restarted.

According to another aspect of the present invention, there is provided a drilling depth monitoring method for a rock drill, comprising the steps of: (A) monitoring monitoring of a drilling depth when an open signal is output from a central opening / closing switch of a central part; (B) When the monitoring of drilling depth is in progress through the monitoring step, a closing signal is outputted from the central opening / closing switch of the central part, and when the pressing signal is outputted from the drifter part pressure switch of the drifter, ; (C) restarting the monitoring of the perforation depth again when the monitoring is stopped through the stopping step, and the open signal is output again from the central secondary open / close switch of the central part.

The monitoring step may include monitoring the penetration depth by measuring a movement distance of the horseshoe, which is relatively shifted by half compared to the drifter moving distance, through the wire displacement sensor.

According to the system and method for monitoring perforation depth for a rock drill of the present invention as described above, it is possible to construct a system using a wire displacement sensor so that a perforation monitoring system can be applied to a cylinder feed system, It is possible to measure the length of the horseshoe moving only in the half length of the lifter and to monitor the depth of drilling in proportion to the signal output from the wire displacement sensor so that the wire displacement sensor does not measure the moving distance of the lifter, , It is less influenced by wire swings and external vibrations. Instead of detecting the pierce depth by the rotation amount of the rotating body equipped with an encoder, a drilling depth monitoring system is also installed in a cylinder feed system without a fixed rotating body. There is an effect that can be done.

FIG. 1 is a view illustrating a drilling depth monitoring system for a rock drill according to an embodiment of the present invention,
FIG. 2 is a view illustrating a central part of a drill depth monitoring system for a rock drill according to an embodiment of the present invention,
3 is a view illustrating a drifter unit constituting a drilling depth monitoring system for a rock drill according to an embodiment of the present invention,
FIG. 4 is a view illustrating a hoisting portion of a drill depth monitoring system for a rock drill according to an embodiment of the present invention,
5 is a diagram for explaining a monitoring process through a drill depth monitoring system for a rock drill according to an embodiment of the present invention,
FIG. 6 is a block diagram illustrating a monitoring process through a drill depth monitoring system for a rock drill according to an embodiment of the present invention,
FIG. 7 is a flowchart illustrating a monitoring process using a drill depth monitoring system for a rock drill according to an embodiment of the present invention. Referring to FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to facilitate a person skilled in the art to easily carry out the present invention.

1 to 6, a drill depth monitoring system for a rock drill according to an embodiment of the present invention includes a mast 100, a drill rod exchange part 300, a central part 500, a drifter part 700 And a hosel portion 900. As shown in Fig.

The mast 100 is formed in a front portion of a drilling machine such as a rock drill to support and guide a structure such as a drill rod and a hoist, and has a space in which a structure can be installed, The arrangement of the structure in the inner space can be facilitated through the opening.

The excavator load exchanging part 300 is installed on the side of the mast 100 and accommodates a plurality of excavating rods. In order to connect the excavating rod accommodated for boring to the drifter 710, And the like.

The magazine is formed to accommodate a plurality of excavation rods. The rod transfer arm selectively grasps the rod housed in the magazine and transfers the rod to a position where it is connected to the drifter 710, or after the drilling operation is completed, And is reciprocated in a swinging motion in order to store the excavation rod 350 separated from the excavation rod 350 in the magazine.

The central part 500 is installed below the mast 100. The excavating rod 350 is inserted into the through hole formed at the center of the mast 100 and the excavating rod 350 is guided so that the straightness of the boring is maintained. Is connected to the drifter 710 or is separated from the drifter 710, the outer circumferential surface of the drilling rod 350 is pressed and fixed to facilitate connection and disconnection.

The central part 500 is provided with a central opening and closing switch 520 so that the excavator rod inserted into the through hole formed at the center part is connected to the drifter 710, When the closing signal is outputted from the central opening / closing switch 520, the inserted excavating rod 350 is pressed and fixed, and when the opening signal is outputted from the central opening / closing switch 520 for drilling operation, The pressure state of the rod 350 is released.

The drifter portion 700 includes a drifter table 750.

The drift table 750 is slidably mounted on the mast 100. The drift table 710 for rotating and hitting the excavation rod 350 for performing the drilling operation is disposed on the upper surface of the drift table 750, And is moved forward on the mast 100 by the tensile force generated on the advance wire 150 as the transfer cylinder 110 is stretched and contracted.

One end of the advancing wire 150 is connected to one side of the drifter table 750 and the other end of the advancing wire 150 is connected to a direction changing roller (not shown) for redirecting the rectilinear movement of the feeding cylinder 110 to be transferred to the drifter table 750 130 and fixed to the upper end of the mast 100.

The drifter 710 is provided with a drifter pressure switch 720. When the drifter 710 is rotated in reverse to remove the connected drilling rod 350, a pressure signal is output from the drifter pressure switch 720.

The hoselile unit 900 is installed on the transfer cylinder 110 and includes a hose roller 950 and a wire displacement sensor 800 connected to the drifter table 750 by a reverse wire 170, And a hose reel 910 connected to a wire 830.

One end of the backward wire 170 is connected to the other side of the drifter table 750 and the other end thereof is fixed to the mast 100 via a hose roller 950. When the driving cylinder 110 is driven, Thereby causing the table 750 to move backward.

The transfer cylinder 110 includes a main body to which the hose reel unit 900 is installed and a piston rod whose end is connected to the rear of the mast 100 to be extended and retracted in the main body.

Therefore, as the piston rod extends and contracts inside the body, the horseshoe 910 moves forward and backward along the longitudinal direction of the mast 100.

The wire displacement sensor 800 is installed at the upper end of the mast 100 and the wire displacement sensor 800 is connected to the hose reel 910 through the displacement wire 830, And detects the movement length of the horseshoe 910 by the displacement wire 830.

When the transfer cylinder 110 is extended to move the drifter table 750 in the perforating direction during the drilling operation, the hose reel 910 mounted on the body of the transfer cylinder 110 is moved to the body of the transfer cylinder 110 The hosel 910 is moved only a half distance relative to the moving length of the drifter table 750 and is connected to the hose reel 910 through the displacement wire 830 The wire displacement sensor 800 senses only a half of the moving distance in proportion to the moving distance of the drifter table 750.

The perforation depth monitoring system for a rock drill configured as described above operates as follows.

First, one end of the excavating rod 350 is received by the excavating rod 350 from the rod exchanging part 300, and the other end of the excavating rod 350 is connected to the drifter 710 Start drilling for drilling.

At this time, the central part 500 opens the central part opening / closing switch 520 to insert the excavating rod 350, and the open signal is transmitted to the displacement control part 120 (S110), and the displacement control part 120 The display distance of the drifter 710 to the display 190 is increased by increasing the display distance (S120).

The displacement controller 120 converts the length of the wire into a length corresponding to the electrical signal output from the wire displacement sensor 800, and then displays the depth of the hole.

At this time, the output of the wire displacement sensor 800 may be an analog signal or a digital signal.

When the drilling rod 350 is again inserted in the drilling operation, when the drilling rod 350 supplied again from the rod exchange portion 300 is inserted into the central portion 500 to connect the additional drilling rod 350, The central opening and closing switch 520 of the unit 500 presses the excavation rod 350 and the drifter 710 is connected to the excavation rod 350 while rotating in the reverse direction.

At this time, the central part 500 closes the central opening / closing switch 520 to press the excavation rod 350, and the closing signal is transmitted to the displacement control part 120 as a primary signal (S130) The drifter 710 receives the pressure signal from the drifter portion pressure switch 720 of the drifter 720 as it is rotated in the reverse direction to the displacement controller 120 as a secondary signal (S140).

When the primary signal and the secondary signal are sequentially transmitted, the displacement controller 120 monitors the depth of the hole and stops the process of increasing the number (S150).

After the excavating rod 350 is connected to the drifter 710, the central part 500 opens the central opening / closing switch 520 to perform the drilling operation again, and the open signal is transmitted to the displacement control part 120 The distance to which the drifter 710 is transferred to the display 190 through the displacement control unit 120 is displayed while increasing the number again so that the drilling depth is monitored again at step S170, (Step S180).

If the measurement of the entire conveyance length (3.6 m to 4 m) of the drifter (710) is made 1: 1 in order to monitor the drilling depth, the wire displacement sensor receives a lot of external influences (deflection, Could not be monitored.

However, by monitoring the distance in proportion to the signal from the wire displacement sensor by measuring the length of the hoisture that moves only half the conveying length of the drifter 710 as in the present invention, Is not affected by the sagging and external vibration of the wire because it is operated only half without measuring the long travel distance of the wire.

Meanwhile, the drilling depth monitoring method for a drill drill according to the present invention may be stored in a recording medium such as a CD-ROM, a memory, a ROM, and an EEPROM so that the method can be read by a computer.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of illustration, It will be readily apparent that various substitutions, modifications, and alterations can be made herein.

100: Master 300: Load exchange part
500: Central part 700: Drifter part
710: Drifter 800: Wire displacement sensor
900:

Claims (7)

A rod exchange unit installed on a side surface of the mast for accommodating a plurality of excavation rods and supplying the excavation rod received for drilling to the drifter; A central portion provided at the front of the mast for guiding the excavation rod so as to maintain straightness of the boring and pressing and fixing the excavation rod when the excavation rod is connected to or separated from the drifter; A drifter table installed on the mast for supporting a drifter to which a drilling rod for performing drilling is fixed, and moving forward using a forwarding wire connected to the transferring cylinder as the transferring cylinder is extended and contracted; A hoisting unit installed on the body of the transfer cylinder to connect the drifter table and the reverse wire and to move the drifter table backward as the transfer cylinder is extended and contracted; And a wire displacement sensor installed at one end of the mast and connected to the horseshoe through a displacement wire and sensing a movement length of the horseshoe as the horseshoe is moved;
When the closing signal is outputted from the central opening / closing switch, the excavating rod is pressed. When the open signal is outputted from the central opening / closing switch, the pressing of the excavating rod is released Wherein the drifter is further configured to include a drifter portion pressure switch, and when the pressing signal is output from the drifter portion pressure switch, the drifter is reversely rotated to separate the excavating rod;
A closing signal is outputted from the central opening / closing switch of the central part, monitoring of the drilling depth is stopped when a pressing signal is outputted from the drifter part pressure switch of the drifter; Monitoring is stopped, monitoring of the drilling depth is restarted again when an open signal is outputted from the central sub opening / closing switch of the central part. delete The system of claim 1, wherein the wire displacement sensor monitors a drilling depth by measuring a movement distance of a hoisting movement that is shifted by half relative to a drifter moving distance. delete (A) a monitoring step of monitoring the drilling depth when an open signal is outputted from a central sub-switch of the central part;
(B) When the monitoring of drilling depth is in progress through the monitoring step, a closing signal is outputted from the central opening / closing switch of the central part, and when the pressing signal is outputted from the drifter part pressure switch of the drifter, step; And
(C) restarting monitoring of the perforation depth again when the monitoring is stopped through the stopping step, and the open signal is output again from the central secondary open / close switch of the central part; Wherein the drill depth monitoring method comprises: [6] The method of claim 5, wherein in the monitoring step, monitoring a piercing depth by measuring a movement distance of the horseshoe, which moves by half relative to a moving distance of the drifter, through a wire displacement sensor Drilling depth monitoring method for drilling. A program for executing the drilling depth monitoring method for a rock drill as set forth in claim 5 or 6, wherein the program is recorded on a computer-readable recording medium.

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