JPH0613900Y2 - Drilling direction display - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a drilling direction display device for a drilling device used for tunnel excavation or the like.

[Conventional technology]

In excavating work such as tunnels, it is necessary to perform accurate drilling in order to improve the blasting effect, reduce the amount of charge, and reduce the amount of overburden, thereby reducing costs and improving safety. For accurate drilling, the position and orientation of the drilling machine must be set correctly for a given drilling pattern. Here, the positioning of the start of the drilling can be performed relatively easily by aligning the tip of the rod with the marked face, but it is difficult to set the direction of the drilling machine, that is, the cutting angle. A device for calculating the angle of the guide shell by detecting the movement angle of the guide shell and the boom by the operator's intuition or displaying the angle (Japanese Patent Laid-Open No. 58-58).
176394).

[Problems to be solved by the invention]

However, it is difficult for an operator to set the pointing angle based on the operator's intuition because the visibility in the tunnel is poor, it is difficult for the operator to recognize the direction, and the error is large. In addition, the conventional pointing angle display device is configured on the assumption that the dolly is installed in the reference posture, and it is accurate if the dolly's direction and inclination are not accurately aligned with the reference coordinate axis of the tunnel. I couldn't get the horn.

This invention solves the above-mentioned problem in setting the drilling angle of a drilling device, and can correctly display the drilling angle even if the trolley is installed incorrectly, facilitating the setting operation in the drilling direction and improving the efficiency. An object of the present invention is to provide a drilling direction display device capable of performing a specific drilling operation.

[Means for solving problems]

In this invention, in order to solve the above-mentioned problems, a boom is pivotally supported on a trolley so that the boom can be raised and lowered, and a guide shell equipped with a drilling machine is tilted, swung, dumped,
In a drilling device that supports rotation, a swing angle detector that generates swing angle information of a boom, a swing angle detector that generates swing angle information of a swing arm, and a tilt that generates tilt angle information of a swing arm. An angle detector, a dump angle detector that generates dump angle information of the guide shell, a storage device that stores the reference angle information from the angle detector when the guide shell is aligned with the reference direction, and a drilling time An arithmetic unit for calculating the drilling direction display amount based on the angle information from the angle detector and the reference angle information stored in the storage unit, and a display unit for displaying the drilling direction display amount calculated by the arithmetic unit. Is provided to form a drilling direction display device.

[Action]

When performing drilling work, first install the trolley near the face of the tunnel, move the boom and align the guide shell with the reference direction of the tunnel set by the laser beam, etc., the swing angle detector of the boom at this time, The angle information from the swing angle detector and the tilt angle detector of the swing arm and the dump angle detector of the guide shell is stored in the storage device as reference angle information. Next, align the tip of the rod of the punch with a predetermined position and operate so that the guide shell is parallel to the reference direction. At this time, the calculation device calculates the drilling direction display amount from the angle information from the angle detector and the reference angle information stored in the storage device, and displays it on the display device. It can be easily set in parallel by controlling the direction of the guide shell so that it becomes zero. When a drilling angle is required in the peripheral hole or the like, it is possible to quickly set the cutting angle of a predetermined angle by performing the dumping operation while viewing the display of the dumping angle after the parallel setting as described above.

When drilling holes for lock bolts, the direction of drilling can be set perpendicularly to the reference direction of the tunnel by performing 90 ° guide dump after setting parallel.

Here, since the tilt angle detector detects the tilt angle with respect to the horizontal plane, the tilt of the swing arm is correctly displayed even if the carriage is installed tilted. On the other hand, the deviation angle to the left and right calculated from the swing angle detector of the boom and the swing angle detector of the swing arm causes an error in the display value due to the tilt of the trolley, but the deviation angle is set to 0 and the parallel installation is performed. Since there is no influence of error in the state, if the upper surface of the punching machine is faced to the peripheral wall in this state and dumping at a predetermined angle is performed, the correct drilling direction is displayed, and the direction can be controlled according to this display.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a boom of a drilling device equipped with a drilling direction display device according to an embodiment of the present invention. FIG. 2 is an explanatory view of a guide shell. ) Shows the movement in the vertical direction, and (c) shows the state of the dump. The drilling device 10 includes a boom base 13 on a base 12 of a carriage 11.
Is pivoted by a swivel shaft 14, and the lower end of the boom 15 is pivotally mounted on the boom base 13 by an elevation shaft 16. The boom 15 has a turning hydraulic cylinder 1 between itself and the base 12.
7. A hydraulic cylinder 18 for elevation is provided between the boom base 13 and the boom base 13 so that it can turn and descend. A tilt arm 19 is pivotally attached to the upper end of the boom 15 by a tilt arm shaft 20, and a tilt hydraulic cylinder 21 is provided between the boom and the boom 15 to allow tilting. Tilt arm 1
A swing arm 22 is pivotally attached to the shaft 9 by a swing arm shaft 23, and a swing hydraulic cylinder (not shown) is provided between the swing arm 22 and the tilt arm 19 so as to be swingable. The swing arm 22 is provided with a guide rotary 24, and is rotatable about a rotary shaft 25. A guide mounting 26 is pivotally attached to the guide rotary 24 by a dump shaft 27 and can be tilted by a dump oil cylinder 28. The guide mounting 26 supports a guide shell 29 slidably. There is. The punching machine 30 is mounted on the guide shell 29,
A feed motor (not shown) can be moved in the front-rear direction. A rod 32 with a bit 31 is attached to the punching machine 30 to strike and rotate it to punch a face.

A swing angle detector 40 and a swing angle detector 41 are attached to the swing shaft 16 of the boom 15 and the swing arm shaft 23 of the swing arm 22 of the punching device 10, and the side surface of the swing arm 22 is inclined. The angle detector 42, and the dump angle detector 43 on the dump shaft 27.
Is installed. Thus, the turning angle detector 40 is
The swing angle α of the boom 15 and the swing angle detector 41 are the swing angle β of the swing arm 22 and the tilt angle detector 4.
2 is information on the inclination angle γ of the swing arm 22 with respect to the horizontal plane, and the dump angle detector 43 generates information on the dump angle φ of the guide shell 29 with respect to the swing arm 22.

FIG. 3 is a block diagram showing the configuration of this embodiment,
This drilling direction display device includes a turning angle detector 40, a swing angle detector 41, an inclination angle detector 42, a dump angle detector 43, a control device 46 including a storage device 44 and a computing device 45, and a display panel 47. , And reset switch 4
8 and.

When carrying out the drilling work, the carriage 11 is installed near the face of the tunnel, the guide shell 29 is aligned with the laser beam indicating the reference direction, and the reset switch 48 is pressed. Then, the angle information from each angle detector 40, 41, 42, 43 is sent to the control device 46 and stored in the storage device 44 as reference angle information α ₁ , β ₁ , γ ₁ , φ ₁ . Next, puncher 3
The tip of the rod 32 of 0 is positioned at a predetermined drilling hole start position, and the guide shell 29 is operated so as to be parallel to the reference direction. During this operation, the angle detectors 40, 41, 42, 4
The angle information α, β, γ, φ from 3 is sent to the control device 46, and these angle information α, β, γ, φ and the reference angle information α ₁ , β ₁ , γ stored in the storage device 44. _{From 1} , φ ₁ , and
The deviation angle θx in the left-right direction from the reference direction of the swing arm, the deviation angle θy in the up-and-down direction, and the dump angle deviation θφ of the guide shell 29 are expressed as θx = (α + β)- (Α ₁ + β ₁ ) θy = γ−γ ₁ θd = φ−φ ₁ are sequentially calculated (the angles are positive in the clockwise direction and negative in the counterclockwise direction in the figure). Information on the amount of drilling direction display θ
The x, θy, and θd are sent to the display panel 47. The display panel 47 has Xs arranged in a cross shape as shown in FIG.
The cross-shaped display 49 includes a group of LEDs in rows and Y, and the digital display 50 includes 7-segment LEDs. The cross-shaped display 49 has a deviation angle θ in the left-right direction.
x and the deviation angle θy in the vertical direction are displayed by turning on the LEDs of the X and Y columns corresponding to the values (when the display range is exceeded, the nearest LED blinks), and the digital display 50 The dump angle deviation θd is displayed as a digital value. The operator can easily guide by operating the dump hydraulic cylinder 28 in the state of the reference time and observing the display of the cross-shaped display 49 so that the LED at the intersection of the X-row and the Y-row lights up. The shell 29 can be set to be parallel to the reference direction. When a peripheral hole or the like is required to have a cutting edge, the upper surface of the punching machine 30 is directly faced to the periphery by the guide rotary 24, and then the digital display 50 is used.
By operating the dump hydraulic cylinder 28 up to a predetermined angle while watching, the correct angle setting is performed. In the case of a rock bolt drilling hole, the drilling direction perpendicular to the reference direction of the tunnel is set by performing a 90 ° guide dump operation.

[Effect of device]

In this invention, since the drilling direction display device is configured as described above, it is not necessary to accurately install the bogie at the time of drilling, the guide shell can be set parallel to the reference direction, and the correct cutting angle can be set. Visible, efficient drilling work and effective blasting can reduce tunnel excavation costs and improve safety.

[Brief description of drawings]

FIG. 1 is a side view of a boom of a drilling device having a drilling direction display device according to an embodiment of the present invention, FIG. 2 is an explanatory view of movement of the boom, and FIG. 3 is a configuration of this embodiment. 4 is an enlarged view of the display panel. FIG. In the figure, 11 is a dolly, 15 is a boom, 22 is a swing arm, 29 is a guide shell, 30 is a punching machine, 40 is a turning angle detector, 41 is a swing angle detector, 42 is an inclination angle detector, and 43 is Dump angle detector, 44 is a storage device,
Reference numeral 45 is an arithmetic unit, and 47 is a display panel.

Claims (2)

[Scope of utility model registration request] Claim: What is claimed is: 1. A boring device for pivotally supporting a boom on a bogie so that the boom can be swung up and down, and a guide shell equipped with a boring machine is supported by the boom for tilting, swinging, dumping and rotating. A swing angle detector that generates angle information, a swing angle detector that generates swing angle information of a swing arm, a tilt angle detector that generates tilt angle information of a swing arm, and a dump angle information of a guide shell A dump angle detector, a storage device for storing reference angle information from the angle detector when the guide shell is aligned with the reference direction, and angle information from the angle detector during drilling and storage in the storage device A computing device for calculating the drilling direction display amount based on the calculated reference angle information, and a display hand for displaying the drilling direction display amount calculated by the computing device Drilling direction display device characterized by providing and. 2. The display means comprises a cross-shaped display for displaying the deviation angle of the swing arm in the vertical direction and the horizontal direction from the reference direction, and a digital display for displaying the dump angle of the guide shell. A drilling direction display device according to claim 1, characterized in that: