JP3168071U - Dismantling machine - Google Patents

Abstract

A dismantling machine capable of dismantling a large vessel more efficiently and safely than before. A hydraulically actuable boom 5 that can be swung on a vehicle body of a self-propelled vehicle, a hydraulically actuated arm 6 that is connected to the boom at the tip of the boom so as to be able to bend and extend, and the vehicle body The driving cabin 4 provided with a control unit for driving the vehicle and driving the boom and arm is operated by the control operation in the control unit in the driving cabin, and the torch head 9 is A thermal cutting machine mounted on the tip, and a camera 11 installed in the vicinity of the torch head of the arm for photographing a cutting area by the torch head and transmitting a video signal of the photographed moving image to a monitor in the driving cabin. Dismantling machine equipped. [Selection] Figure 1

Description

  The present invention relates to a dismantling machine for dismantling a large vessel such as a tanker or a cargo ship.

  Conventionally, in the dismantling of large ships, many spraps are recovered from the remnants. The dismantling was done by hand using simple tools, but the ship contains not only hazardous substances such as PCB, mercury, lead, and asbestos, but also heavy oil. The risk of health damage to the surrounding area was high.

  At present, the ship must be dismantled at a recycling facility approved by the Ship Recycling Convention adopted in 2009, and the dismantling of the ship is progressing. For example, a heavy machine equipped with an attachment for cutting steel materials is used for dismantling the hull as a dismantling machine.

  A demolition machine formed by attaching a cutting attachment to such a heavy machine has been conventionally used for the demolition of relatively large structures and buildings (see, for example, Patent Documents 1, 2, and 3). .

Japanese Unexamined Patent Publication No. 09-041681 Japanese Patent No. 3227473 JP 2003-3679 A

  The cutting attachment attached to the heavy machinery as described above mainly performs shear cutting, and is configured to shear while sandwiching a steel plate between the upper blade and the lower blade. However, in such shear cutting, the object must be inserted between the upper blade and the lower blade, and the larger the object, the more complicated it is to perform cutting while simultaneously performing breakage to obtain the handle. Work. Therefore, with such shear cutting, it is difficult to continue cutting over a relatively wide area, and it has been insufficient as a means for obtaining high working efficiency, particularly for large-scale ship dismantling.

  In view of the above problems, an object of the present invention is to provide a dismantling machine that can dismantle a large vessel more efficiently and safely than before.

In order to achieve the above object, in the dismantling machine of the present invention, a hydraulic hydraulic boom that can be raised and lowered mounted on the body of a self-propelled vehicle,
A hydraulic operating arm connected to the boom at the tip of the boom so as to be able to bend and extend;
A driving cabin that is installed on the vehicle body in a state of facing a traveling direction when the vehicle is driven, and includes a control unit that performs a traveling operation of the vehicle and a drive operation of a boom and an arm;
A thermal cutting machine that is actuated by a control operation in a control unit in the operating cabin, and a torch head is attached to the tip of the arm;
An imaging device that is installed in the vicinity of the torch head of the arm and images a cut area by the torch head and transmits a video signal of the captured moving image to a monitor in the driving cabin.

  The thermal cutting machine is a fusing machine that melts the part to be cut with heat and discharges and removes the part melted with high-pressure gas to form a groove and cuts in a non-contact manner. The size and shape of the object to be cut are not limited. Therefore, in the dismantling machine of the present invention, the boom is pivotably mounted on the body of the self-propelled vehicle, and the torch head of the thermal cutting machine is attached to the tip of the arm connected to the boom. The object can be continuously cut at an arbitrary position and length over a wide range as long as it can be reached by turning / undulation and bending / extending of the arm. Moreover, since no reaction force is generated as in mechanical shearing, it is not necessary to have rigidity to resist this, and only a small amount of energy is required for cutting. Compared to conventional mechanical cutting, much more efficient cutting and dismantling can be performed safely by remote control.

  Examples of the thermal cutting machine include a gas cutting machine that mainly uses thermal energy, a laser cutting machine that uses light energy, and a plasma cutting machine that uses electrical energy. First, the gas cutting machine uses a high pressure oxygen jetted from the tip nozzle of the torch head and the oxidation reaction heat of iron to melt the cutting front part, and blows off this molten metal by its high-speed oxygen jet. It is. Usually, a cutting crater for ejecting a high-temperature flame (preheating flame) for raising the cutting start point to the ignition temperature is provided around the oxygen ejection nozzle. This preheating flame suppresses the entrainment of air and suppresses a rapid decrease in oxygen purity in the cutting groove, and also fulfills a function of maintaining momentum.

  In addition, when the steel plate to be cut is stainless steel or aluminum alloy other than iron, it cannot be handled by gas cutting that uses an oxidation reaction to cut. In this case, a laser cutting machine or a plasma cutting machine is used as the thermal cutting machine.

  The laser cutting machine sends a laser beam from a laser transmitter to a condensing optical system via a transmission system such as an optical fiber, and irradiates the target beam together with an assist gas from the nozzle with the condensing optical system. Is. The assist gas is a high-speed gas flow of oxygen, nitrogen, argon or the like that blows away the molten metal by the heat input of the laser. When such a laser cutting machine is mounted, only the torch head provided with a condensing optical system for condensing the laser beam to the irradiation nozzle is attached to the tip of the arm connected to the boom, and the laser oscillator is a gas cylinder. If the assist gas supply source for the regulator is disposed on the vehicle body side, the operability of the boom arm and the torch head is light.

  On the other hand, the plasma cutting machine flows a gas from the periphery of the electrode inside the tip of the torch head to the nozzle and forms a plasma airflow by flowing electricity to this gas. It is ejected as a plasma jet. The object is melted by the plasma jet, and at the same time, the molten metal is blown off by the jet and cut.

  As described above, in any thermal cutting machine, the torch head is mounted on the tip of the arm, the main body including the gas supply source is mounted on the vehicle body side, and the camera is mounted in the vicinity of the arm torch head in the driving cabin. If the thermal cutting machine is operated by the drive control in the control unit in the driving cabin while checking the image transmitted from the imaging device such as the monitor, the operability of the torch head as the cutting unit is light and efficient. . The transmission system and piping system from the main body side of the thermal cutting machine to the torch head may be arranged along the boom arm.

  The actual cutting operation is performed while checking the image of the cutting area by the imaging device on the monitor in the driving cabin, so the arm installation position of the imaging device is taken by the cutting area, that is, the area around the nozzle part of the torch head. Any location that can be synchronized with the movement of the torch head in the vicinity of the torch head that can be used. For example, it is simplest to fix the camera to the fixing portion for mounting the torch head at the tip of the arm.

  Moreover, it is good also as a structure which can provide the imaging device other than the above-mentioned cutting | disconnection area | region imaging | photography, and can also confirm the surrounding condition outside a cutting area. Further, in order to secure a wider viewable area from the driving cabin, it is desirable that the driving cabin itself installed on the vehicle body can also be raised and lowered.

  According to the demolition machine of the present invention, the torch head of a thermal cutting machine is attached to the tip of a hydraulically operated boom mounted on the body of a self-propelled vehicle so as to be able to turn and undulate, Because it is operated by the control operation at the part, it is not limited by the size or shape of the object to be cut, and it is continuous at any part and length over a wide range as long as it can be reached by driving the boom arm Can be cut easily, and no reaction force is generated unlike mechanical cutting, so it requires less energy only for cutting, and even in the dismantling of large vessels, compared to conventional mechanical cutting. This has the effect of being able to safely perform dismantling that is much more efficient by remote control.

It is a perspective view showing a schematic structure of a demolition machine by one embodiment of the present invention.

  A demolition machine according to an embodiment of the present invention is shown in FIG. The dismantling machine uses a so-called hydraulic backhoe that travels with power obtained from an engine as a self-propelled vehicle 1. On the vehicle is mounted a turning stage 2 that turns by a part of the hydraulic pressure obtained by converting the power obtained from the engine by the hydraulic pressure generator 3. On the turning stage 2, the driving cabin 4 is installed so as to be able to move up and down by the oil pressure in a state of facing the traveling direction when the vehicle is traveling.

  Further, on the upper stage 2, a boom 5 is pivotally supported by a hydraulic cylinder for raising and lowering, and an arm 6 kneaded and bent with respect to the boom 5 is provided at the tip of the boom 5. It has been.

  In this dismantling machine, a thermal cutting machine body 8 of any one of a gas cutting machine, a laser cutting machine, and a plasma cutting machine is also mounted on the turning stage 2, and the torch head 9 of the thermal cutting machine has an arm 6. Is attached and fixed to the tip fixing portion 7. The transmission system / piping system 10 between the torch head 9 and the thermal cutting machine main body 8 has a length sufficient to follow up and down and bending of the boom / arm along the boom 5 and the arm 6. Is arranged.

  Further, a camera 11 as a photographing device is also fixed to the distal end fixing portion 7 of the arm 6. The camera 11 photographs a cutting area of the torch head 9, and a video signal of the photographed moving image is used as a driving cabin. 4 was sent to the monitor.

  In the driving cabin 4, there is provided a control unit for controlling the driving of the self-propelled vehicle 1, the turning of the turning stage 2, the driving operation of the boom 5 and the arm 6, and all the operations are performed by the operator in the driving cabin 4. In this dismantling machine, the operation of the thermal cutting machine body 8 and the camera 11 is also controlled by this control unit.

  Accordingly, after positioning the self-propelled vehicle 1 and the driving cabin 4 in the driving cabin 4, the operator monitors the moving image of the cutting area from the camera 11 and confirms the driving operation of the boom 5 and the arm 6. The head 9 can be moved to continuously cut and disassemble the object.

  As described above, in this dismantling machine, there is no limitation on the size and shape of the object, and not only can continuous cutting be performed as long as the torch head 9 arrives, but the energy required for actual cutting is Since energy for the movement of the torch head 9 and the operation of the thermal cutting machine is sufficient, it is possible to perform cutting and dismantling much more efficiently than conventional mechanical cutting in which a reaction force is generated during cutting. Therefore, efficient dismantling work by remote control is possible even for large ships, and it is easy to ensure the safety of the operator.

1: Self-propelled vehicle 2: Turning stage 3: Hydraulic generator 4: Driving cabin 5: Boom 6: Arm 7: Fixed part 8: Thermal cutting machine body 9: Torch head 10: Transmission system / Piping system 11: Camera

Claims (2)

A hydraulic hydraulic boom that can be raised and lowered mounted on the body of a self-propelled vehicle,
A hydraulic operating arm connected to the boom at the tip of the boom so as to be able to bend and extend;
A driving cabin that is installed on the vehicle body in a state of facing a traveling direction when the vehicle is driven, and includes a control unit that performs a traveling operation of the vehicle and a drive operation of a boom and an arm;
A thermal cutting machine that is actuated by a control operation in a control unit in the operating cabin, and a torch head is attached to the tip of the arm;
An imaging device installed in the vicinity of the torch head of the arm to image a cutting area by the torch head and to transmit a video signal of a captured moving image to a monitor in the driving cabin. Dismantling machine. A hydraulic hydraulic boom that can be raised and lowered mounted on the body of a self-propelled vehicle,
A hydraulic operating arm connected to the boom at the tip of the boom so as to be able to bend and extend;
A driving cabin that is installed on the vehicle body in a state of facing a traveling direction when the vehicle is driven, and includes a control unit that performs a traveling operation of the vehicle and a drive operation of a boom and an arm;
A thermal cutting machine that is actuated by a control operation in a control unit in the operating cabin, and a torch head is attached to the tip of the arm;
An imaging device that is installed in the vicinity of the torch head of the arm and shoots a cutting area by the torch head and transmits a video signal of a captured moving image to a monitor in the driving cabin;
The thermal cutting machine is a gas cutting machine, a laser cutting machine, or a plasma cutting machine.

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