KR101034550B1 - The dry process cutter and cutting method for concrete structure deconstruction - Google Patents

Abstract

In the present invention, excessive wear of the tool occurs due to frictional heat inevitably generated between the cutting tool and the cutting object when cutting the concrete structure using the diamond cutting tool, thereby reducing cutting efficiency and increasing construction cost due to frequent wire replacement. In order to solve this problem, it is necessary to automatically or manually adjust the cutting speed of the diamond cutting tool according to the cutting area between the diamond cutting tool and the cutting object to control the frictional heat generated from the cutting tool to be below the allowable limit. Its purpose is to provide a dry cutting device and a cutting method.

Dry cutting device for dismantling the concrete structure according to the present invention for achieving the above object is an endless cutting wire wound on a cutting object, a drive pulley for driving the cutting wire, and a drive motor for rotationally driving the drive pulley And a non-contact thermometer disposed on the driving pulley and measuring the surface temperature of the cutting wire, and a digital display displaying the data measured by the non-contact thermometer.

In addition, the dry cutting method for dismantling a concrete structure according to the present invention for achieving the above object is an endless cutting wire wound on a cutting object, a drive pulley for driving the cutting wire, and the drive pulley to rotate A dry cutting device for dismantling a concrete structure, comprising a drive motor, a non-contact thermometer disposed on the drive pulley and simultaneously measuring the surface temperature of the cutting wire, and a digital display displaying the data measured by the non-contact thermometer. The surface temperature of the cutting wire during cutting is measured by a non-contact thermometer disposed on the driving pulley and displayed on a digital display, and the tension of the cutting wire and the speed of the driving motor are adjusted based on the temperature data displayed on the digital display. Cutting temperature of the cutting wire While maintained within acceptable limits is characterized in that the cut for cutting the object.

Dry cutting device for dismantling concrete structure

Description

The dry process cutter and cutting method for concrete structure deconstruction}

The present invention relates to a dry cutting device and a cutting method for dismantling a concrete structure, and in particular, the dry cutting of the concrete structure using a diamond cutting tool (wire saw, core, wheel saw), by automatically controlling the speed of the cutting device and the cutting object and The present invention relates to a dry cutting device for dismantling a concrete structure and a cutting method for controlling the temperature of a tool at a cutting surface where the cutting tool abuts below an allowable limit.

In general, the use of diamond cutting tools (wire saw, core drill, wheel saw) for dismantling the concrete structure is drawing attention.

Here, the wire saw method is a method of cutting the structure by connecting the wire saw to the cutting object structure, the drive pulley is rotated at a high speed while conveying the drive pulley by a hydraulic cylinder to give tension to the wire.

Conventional wire saw method as described above is a low noise, vibration-free method, there is no limitation on the cutting depth or cutting angle of the structure, it does not damage the existing structure, it is possible to precise diagnosis, and also can be installed underwater There is an advantage.

However, the conventional wire saw method as described above has the following problems.

First, the conventional wire saw method not only generates a lot of heat in the wire saw when cutting the structure, but also generates dust. To prevent this, the wire saw is cooled by using 600 l or more of coolant per hour. In order to use a separate cooling water for the problem there is a need for a separate facility for cooling water treatment.

Second, the conventional wire saw method not only incurs a separate sludge treatment cost for treating sludge generated by the use of cooling water when cutting concrete structures, but also requires installation and operation of a fallwater prevention facility, thereby providing more than necessary units for cutting structures. There is a problem that the processing cost is excessive.

In particular, when there is a river in the portion adjacent to the cutting object when cutting the structure, sludge is generated due to the cooling water used when cutting the structure, which causes a serious problem in which the stream is contaminated and the stream ecosystem is destroyed.

Third, the conventional wire saw method has a problem that the dust generated when cutting the structure is scattered to the atmosphere, not only pollute the environment near the structure, but also adversely affect the human body.

Fourth, the conventional wire saw method does not absorb the frictional heat generated when cutting the structure separately from the pulley has a problem that the fixing force of the pulley portion is weakened not only to make the wire twist but also push.

Fifth, in the conventional wire saw method, the temperature of the wire saw excessively rises above the limit, causing the wear of the wire, thereby reducing the cutting efficiency and increasing the economic cost of frequent wire replacement. have.

On the other hand, the wheel saw method is a method of cutting a concrete structure in a straight line by mounting an industrial diamond wheel blade on a rotating shaft and rotating at a high speed with an electric motor, gasoline, engine oil pressure, etc. in the same principle as a grinder.

Conventional wheel saw method as described above is good workability, easy to transport dismantling member, no vibration and dust, the air can be adjusted by adjusting the number of machines, the cutting length of the member can be accurately accumulated and cut the advantage There is this.

However, the conventional wheel saw method as described above has a problem that the wheel blade is easily worn because there is no separate device for cooling the heat generated from the wheel blade when cutting the structure with the wheel blade.

Accordingly, the present invention has been made to solve the problems described above, the excessive frictional heat generated between the cutting tool and the cutting object when cutting the concrete structure using the diamond cutting tool according to the cutting area between the diamond cutting tool and the cutting object. It is an object of the present invention to provide a dry cutting device and a cutting method for dismantling a concrete structure by controlling the cutting speed of a diamond cutting tool automatically or manually to control the temperature of the cutting tool due to frictional heat to be below an acceptable limit.

Dry cutting device for dismantling the concrete structure according to the present invention for achieving the above object is an endless cutting wire wound on a cutting object, a drive pulley for driving the cutting wire, and a drive motor for rotationally driving the drive pulley And a non-contact thermometer disposed on the driving pulley and simultaneously measuring the surface temperature of the cutting wire, and a digital display displaying the data measured by the non-contact thermometer.

In addition, the dry cutting method for dismantling a concrete structure according to the present invention for achieving the above object is an endless cutting wire wound on a cutting object, a drive pulley for driving the cutting wire, and the drive pulley to rotate A dry cutting device for dismantling a concrete structure, comprising a drive motor, a non-contact thermometer disposed on the drive pulley and simultaneously measuring the surface temperature of the cutting wire, and a digital display displaying the data measured by the non-contact thermometer.

The surface temperature of the cutting wire during cutting is measured by a non-contact thermometer disposed on the driving pulley and displayed on a digital display, and the tension of the cutting wire and the speed of the driving motor are adjusted based on the temperature data displayed on the digital display. It is characterized in that for cutting the cutting object while maintaining the cutting temperature of the cutting wire within an acceptable limit.

As described above, the dry cutting device and the cutting method for dismantling the concrete structure according to the present invention automatically adjust the cutting speed of the diamond cutting tool according to the cutting area between the diamond wire saw and the cutting target to reduce the frictional heat generated from the cutting tool. By controlling to be less than the allowable limit, the frictional heat generated when cutting the structure in the cutting tool can be lowered below a certain temperature, thereby extending the life of the cutting tool and the safety of the cutting operation is greatly improved.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

1 is a schematic diagram showing a dry cutting device for dismantling a concrete structure according to the present invention, Figure 2 is a cross-sectional view showing a dry cutting device for dismantling a concrete structure according to the present invention, Figure 3 according to the present invention 4 is a block diagram illustrating a dry cutting device for dismantling a concrete structure, and FIG. 4 is a block diagram showing a control device of a dry cutting device for dismantling a concrete structure according to the present invention, and FIG. 5 is a dry type for dismantling a concrete structure according to the present invention. It is a graph showing the allowable limit of the wire of the cutting device.

As shown in these drawings, the dry cutting device for dismantling the concrete structure according to the present invention is an endless cutting wire 100 wound on the cutting object (W), and a driving pulley for driving the cutting wire 100 ( 110, a drive motor 120 for rotationally driving the drive pulley 110, a non-contact thermometer 130 disposed on the drive pulley 110 and at the same time measuring the surface temperature of the cutting wire 100, It is composed of a digital display 140 for displaying the data measured by the non-contact thermometer 130.

That is, the dry cutting device (C) for dismantling the concrete structure according to the present invention includes a non-contact thermometer 130 and a display on a wire saw composed of a cutting wire 100, a driving pulley 110, and a driving motor 120. 140 is coupled to measure the frictional heat (temperature) of the cutting wire 100 used for dismantling the cutting object (W) by using a non-contact thermometer 130, based on this tension and drive motor of the cutting wire 100 By controlling the speed of 120 or manually, the cutting object W is cut while maintaining the temperature of the cutting wire 100 uniformly.

Here, since the wire saw is a device used for cutting a general concrete structure, further description thereof will be omitted.

On the other hand, the non-contact thermometer 130 is composed of a laser meter or a thermal imaging camera, the temperature measurement range of the non-contact thermometer 130 is 0 ~ 1200 ℃, the response speed is composed of 0.5sec or less.

Here, the thermal imaging camera is an infrared camera capable of measuring the heat distribution and the temperature of a specific portion without a separate contact to the cutting object (W), the measuring method is an infrared wavelength generated from the frictional heat of the cutting wire (100) The device analyzes the temperature based on the infrared value and displays the result on the digital display 140.

In particular, the thermal image and the general visible image can be taken and shown at the same time, the thermal image can be analyzed in real time, so there is an advantage that the overall temperature distribution can be analyzed.

In addition, the display 140 is composed of a monitor, a keyboard, and a mouse, and displays a value on the screen by analyzing the infrared data value measured by the thermal imaging camera 130, through which the operator manually cut The tension of the wire 100 and the speed of the drive motor 120 can be adjusted.

It will be described for cutting the structure using a dry device for dismantling the concrete structure according to the present invention made of a configuration as described above.

Dry cutting method for dismantling the concrete structure according to the present invention is an endless cutting wire 100 wound on the cutting object (W), a drive pulley 110 for driving the cutting wire 100, and the drive pulley ( A drive motor 120 for rotating the drive 110, a non-contact thermometer 130 that is disposed on the drive pulley 110 and simultaneously measures the surface temperature of the cutting wire 100, and measured by the non-contact thermometer 130 Dry cutting device (C) for dismantling the concrete structure consisting of a digital display 140 displaying the data is used,

The surface temperature of the cutting wire 100 being cut is measured by the non-contact thermometer 130 disposed on the driving pulley 110 and displayed on the digital display 140, and the temperature data displayed on the digital display 140. By adjusting the tension of the cutting wire 100 and the speed of the drive motor 120, the cutting object (W) is cut while maintaining the cutting temperature of the cutting wire (100) within an allowable limit.

Here, as a factor that significantly affects the frictional heat of the cutting wire 100 as (+) factors 1) the cutting surface of the cutting object (W) and the cutting length (L), 2) of the cutting wire 100 There is a tensile force (torque) of the cutting wire 100, 3) the speed of the cutting wire 100, the (-) factor is 4) the cutting length (L ') of the cutting wire 100 other than the cutting surface have.

Therefore, by adjusting the speed of the cutting wire 100 automatically or manually in accordance with the frictional heat of the cutting wire 100 (1), 2), 3) and (4) which is a positive factor. The frictional heat of the cutting wire 100 is adjusted to below an allowable limit value.

That is, in the dry cutting method for dismantling the concrete structure according to the present invention, since the frictional heat is relatively small when the cutting object W is initially cut with the cutting wire 100, as shown in FIG. When the cutting of the cutting object (W) proceeds to some extent and the cutting length (L) of the cutting surface of the cutting object (W) and the cutting wire (100) becomes large, that is, the frictional heat of the cutting wire (100) rises. The frictional heat of the cutting wire 100 is measured by the non-contact thermometer 130 and displayed on the digital display 140, and the tension and the tension of the cutting wire 100 are based on the temperature data displayed on the digital display 140. When the speed of the driving motor 120 is automatically or manually adjusted, the cutting wire 100 is driven in a state in which the speed of the cutting wire 100 is lowered, thereby cutting the cutting object W, thereby cutting the cutting object W and the cutting wire ( Liver Since the short length L becomes smaller and the cutting length L 'of the cutting wire 100 other than the cut surface of the cutting object W becomes large, the heat radiation from the cutting wire 100 passing through the cutting object W is increased. Since it is made larger, the cutting object (W) is cut into the cutting wire (100) in a state in which the cutting speed of the cutting wire (100) is increased again.

Here, when cutting the cutting object (W) of the cutting wire 100 while automatically or manually adjusting the tension of the cutting wire 100 and the speed of the driving motor 120 according to the frictional heat of the cutting wire (100). The cutting object W is cut while maintaining the cutting temperature within the allowable limit.

Hereinafter, the present invention will be described in detail by way of examples.

Dry cutting device for dismantling the concrete structure according to the present invention is an endless cutting wire 100 wound on the cutting object (W), drive pulley 110 for driving the cutting wire 100, and the drive pulley ( A drive motor 120 for rotating the drive 110, a non-contact thermometer 130 that is disposed on the drive pulley 110 and simultaneously measures the surface temperature of the cutting wire 100, and measured by the non-contact thermometer 130 A / D converter 150 for converting the temperature signal is converted into digital data and the data of the A / D converter 150 are received and compared with the set data, so that the cutting operation is performed within the set temperature range. It consists of a controller 160.

That is, the dry cutting device (C) for dismantling the concrete structure according to the present invention is measured by measuring with a non-contact thermometer 130 on a wire saw composed of a cutting wire 100, a driving pulley 110, a driving motor 120. The converted temperature signal is converted into digital data through the A / D converter 150 and then sent to the controller 160 so that the cutting operation is performed within a temperature range of the cutting wire 100 which is a predetermined allowable limit value. The tension of the dragon wire 100 and the speed of the drive motor 120 is automatically adjusted.

Here, since the wire saw is generally used for cutting concrete structures, further description thereof will be omitted.

On the other hand, the non-contact thermometer 130 is composed of a laser meter or a thermal imaging camera, the temperature measurement range of the non-contact thermometer 130 is 0 ~ 1200 ℃, the response speed is composed of 0.5sec or less.

Here, the thermal imaging camera is an infrared camera capable of measuring the heat distribution and the temperature of a specific portion without a separate contact to the cutting object (W), the measuring method is an infrared wavelength generated from the frictional heat of the cutting wire (100) It is a device that analyzes temperature based on these infrared values by measuring.

In particular, the thermal image and the general visible image can be taken and shown at the same time, the thermal image can be analyzed in real time, so there is an advantage that the overall temperature distribution can be analyzed.

In addition, the A / D converter 150 converts an analog signal into a digital signal. The A / D converter 150 converts an analog signal measured by a thermal imaging camera, which is a non-contact thermometer 130, into a digital signal to a controller. Sending device.

On the other hand, the controller 160 has a calculation unit therein, the infrared data measured by the non-contact thermometer 130 to maintain the frictional heat (temperature) of the cutting wire 100, which is a set allowable threshold value in a constant state. When the friction heat (temperature) is excessive compared to the preset tolerance value, the value of the cutting object 100 is automatically controlled by controlling the tension of the cutting wire 100 and the speed of the driving motor 120. W) is a device for controlling the cutting wire 100 and the drive motor 120 to cut.

It will be described for cutting the structure using a dry device for dismantling the concrete structure according to the present invention made of a configuration as described above.

Dry cutting method for dismantling the concrete structure according to the present invention is an endless cutting wire 100 wound on the cutting object (W), a drive pulley 110 for driving the cutting wire 100, and the drive pulley ( A drive motor 120 for rotating the drive 110, a non-contact thermometer 130 that is disposed on the drive pulley 110 and simultaneously measures the surface temperature of the cutting wire 100, and measured by the non-contact thermometer 130 A / D converter 150 for converting the temperature signal is converted into digital data and the data of the A / D converter 150 are received and compared with the set data, so that the cutting operation is performed within the set temperature range. Dry cutting device (C) for dismantling the concrete structure consisting of the controller 160 is used, and the surface temperature of the cutting wire 100 during the cutting operation through the non-contact thermometer 130 disposed on the drive pulley 110 Measuring side The converted temperature signal is converted into digital data through the A / D converter 150, and then the converted data is transmitted to the controller 160 to be compared and analyzed with the temperature range of the set cutting wire 100. The cutting object W is cut while adjusting the tension of the cutting wire 100 and the speed of the driving motor 120 within the range of the temperature of the wire 100.

That is, in the dry cutting method for dismantling the concrete structure according to the present invention, since the frictional heat is relatively small when the cutting object W is initially cut with the cutting wire 100, as shown in FIG. When the cutting object W is cut to some extent and the cutting surface L of the cutting object W and the cutting length L of the wire 100 become larger, the frictional heat of the cutting wire 100 naturally rises. The frictional heat of 100 is measured by the non-contact thermometer 130, the measured temperature signal is converted into digital data through the A / D converter 150, and then the converted data is transmitted to the controller 160 for cutting. By comparing and analyzing the temperature range of the wire 100, and lowering the speed by automatically controlling the tension of the cutting wire 100 and the driving speed of the drive motor 120 within the set cutting wire 100 temperature, Accordingly Since the drive object is driven in a state where the speed of the wire 100 is lowered to cut the cutting object W, the cutting length L between the cutting object W and the cutting wire 100 is reduced, so that the cutting object W Since the cutting length L ′ of the cutting wire 100 other than the cutting surface becomes large, heat radiation is largely generated in the cutting wire 100 passing through the cutting object W, so that the cutting speed of the cutting wire 100 increases again. The cutting object W is cut by the cutting wire 100 in the closed state.

In this way, since the temperature of the tool is initially low according to the frictional heat (temperature) of the cutting wire 100 when cutting the cutting object W, the cutting object W is cut while rotating the cutting wire 100 at high speed. While measuring the surface temperature of the cutting wire 100 in real time with a non-contact thermometer, the tension of the cutting wire 100 and the speed of the driving motor 120 within a preset temperature tolerance of the cutting wire 100 is set in advance. Cutting the cutting object (W) while adjusting.

1 is a schematic view showing a dry cutting device for dismantling a concrete structure according to the present invention,

Figure 2 is a cross-sectional view showing a dry cutting device for dismantling the concrete structure according to the present invention,

Figure 3 is a block diagram showing a dry cutting device for dismantling the concrete structure according to the present invention,

Figure 4 is a block diagram showing a control device of the dry cutting device for dismantling the concrete structure according to the present invention,

5 is a graph showing the allowable limit of the cutting wire of the dry cutting device for dismantling the concrete structure according to the present invention.

Explanation of symbols on the main parts of the drawing

100: cutting wire 110: drive pulley

120: drive motor 130: non-contact thermometer

140: display 150: A / D converter

160: controller

C: Dry cutting device for dismantling concrete structure

L: cutting object and cutting wire length

L ': Length of cutting wire for cutting other than cutting object

W: cutting object

Claims (8)

An endless cut wire 100 wound around the cutting object W, a drive pulley 110 for driving the cutting wire 100, a drive motor 120 for rotationally driving the drive pulley 110, and And a non-contact thermometer 130 disposed on the driving pulley 110 and measuring the surface temperature of the cutting wire 100, and a digital display 140 displaying data measured by the non-contact thermometer 130. Become, The non-contact thermometer 130 is composed of a laser meter or a thermal imaging camera, the temperature measurement range of the non-contact thermometer 130 is 0 ~ 1200 ℃, the response speed is dry type for dismantling the concrete structure, characterized in that composed of 0.5sec or less Cutting device. delete An endless cut wire 100 wound around the cutting object W, a drive pulley 110 for driving the cutting wire 100, a drive motor 120 for rotationally driving the drive pulley 110, and And a non-contact thermometer 130 that is disposed on the driving pulley 110 and measures the surface temperature of the cutting wire 100, and an A / D for converting the temperature signal measured by the non-contact thermometer 130 into digital data. The controller 150 and the controller 160 for receiving the data of the A / D converter 150 and compare the data with the set data, the cutting operation is performed within the set temperature range, The non-contact thermometer 130 is composed of a laser meter or a thermal imaging camera, the temperature measurement range of the non-contact thermometer 130 is 0 ~ 1200 ℃, the response speed is dry type for dismantling the concrete structure, characterized in that composed of 0.5sec or less Cutting device. delete An endless cut wire 100 wound around the cutting object W, a drive pulley 110 for driving the cutting wire 100, a drive motor 120 for rotationally driving the drive pulley 110, and And a non-contact thermometer 130 disposed on the driving pulley 110 and measuring the surface temperature of the cutting wire 100, and a digital display 140 displaying data measured by the non-contact thermometer 130. The dry cutting device for dismantling the concrete structure is used, and the surface temperature of the cutting wire 100 being cut is measured by the non-contact thermometer 130 disposed on the driving pulley 110 and displayed on the digital display 140. And, based on the temperature data displayed on the digital display 140 to adjust the tension of the cutting wire 100 and the speed of the drive motor 120, to maintain the cutting temperature of the cutting wire 100 within the allowable limit. Standing in a dry method for cutting concrete demolition, characterized in that the cut for cutting the object (W). The method of claim 5, The non-contact thermometer 130 is composed of a laser measuring instrument or a thermal imaging camera, the temperature measurement range of the non-contact thermometer 130 is 0 ~ 1200 ℃, the response speed is dry sec. Cutting method. An endless cutting wire 100 wound around the cutting object W, a driving pulley 110 for driving the cutting wire 100, a driving motor 120 for rotationally driving the driving pulley 110, and And a non-contact thermometer 130 that is disposed on the driving pulley 110 and measures the surface temperature of the cutting wire 100, and an A / D for converting the temperature signal measured by the non-contact thermometer 130 into digital data. Dryer for concrete structure disassembly composed of a converter 150, and the controller 160 to receive the data of the A / D converter 150 and compare and compare the data with the set data, the cutting operation is performed within a set temperature range Using a cutting device, the temperature signal measured by measuring the surface temperature of the cutting wire 100 in the cutting operation through the non-contact thermometer 130 disposed on the drive pulley 110 to measure the A / D converter 150. To digital data via Thereafter, the converted data is transmitted to the controller 160 to be compared and analyzed with the temperature range of the set cutting wire 100, and the tension of the cutting wire 100 within the range of the set cutting wire 100 temperature. Dry cutting method for dismantling a concrete structure, characterized in that for cutting the cutting object (W) while adjusting the speed of the drive motor (120). The method of claim 7, wherein The non-contact thermometer 130 is composed of a laser measuring instrument or a thermal imaging camera, the non-contact thermometer measuring range is 0 ~ 1200 ℃, response speed dry cutting method for dismantling the concrete structure, characterized in that composed of 0.5sec or less.

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