KR20110105742A - Apparatus for movement on surface of steel structure using magnetic force - Google Patents

Abstract

One embodiment of the present invention relates to a steel structure surface movement apparatus using a magnetic force that automatically moves on the steel structure using a magnetic force.
Steel structure surface moving apparatus using a magnetic force according to an embodiment of the present invention, a transfer bogie, a wheel mounted and driven on the transfer bogie, a first motor for providing a driving force to the wheel, and is mounted on the transfer bogie By generating and adjusting the strength of the magnetic force, it may include a magnetic force device for bringing the wheel in close contact with the target steel structure.

Description

Apparatus for Movement On Surface of Steel Structure Using Magnetic Force}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface moving device, and more particularly, to a steel structure surface moving device using a magnetic force that automatically moves on a steel structure using magnetic force.

The present invention relates to a steel structure surface movement apparatus using magnetic force to automatically move on a steel structure, and to perform the necessary work.

The present invention relates to a steel structure surface moving device using a magnetic force integrally formed with a wheel with a wheel, and provided with a magnetic force device in the transport cart.

The present invention relates to a steel structure surface movement apparatus using a magnetic force to form a transfer cart in a plurality of frames, by connecting the frame to the joint to move effectively in the steel structure.

The present invention relates to a steel structure surface moving apparatus using a magnetic force that effectively moves in a steel structure having a curvature by applying a curvature adjusting device to the transfer bogie.

For example, a large diameter (for example, 2m or more) steel pipe is connected between the waterworks in the water supply area and each local water supply plant. The steel pipes are generally installed at a similar depth and are buried underground. It may have a height difference according to the terrain.

In addition, the steel pipe includes a coal tar layer applied to the inner surface to prevent corrosion of the inner surface. Due to prolonged use, the coal tar layer partially ages and wears, thereby eroding the inner surface of the steel pipe. As steel pipes are buried underground and various buildings or structures are installed on the ground above them, it is difficult to replace the steel pipes.

Therefore, there is a need to remove the coal tar layer attached to the inner surface of the steel pipe and the corrosion layer formed on the worn portion, and to repair the removed portion. However, since it is difficult for a person to work inside the steel pipe in reality, there is a need for an apparatus for removing and repairing the coal tar layer and the corrosion layer inside the steel pipe.

In addition, the embedded steel pipe maintains its shape out of the circle due to the load, and thus, through the removal device corresponding to the circumference of the inner surface, the coal tar layer and the corrosion layer cannot be removed, and the inner surface of the removed steel surface cannot be repaired.

In addition, there is a problem in the safety and work efficiency of workers during the construction and repair of large vessels. In internal tank maintenance and cleaning operations, toxic gases in the tank cause gas poisoning or gas explosions, impairing the safety of the worker, thus raising the need for a device to replace the worker.

When painting or welding large vessels, workers are exposed to danger due to high-altitude work and changes in the external environment, and work efficiency is low due to high precision of work and much time and labor.

In addition, when underwater welding and repair work, there is no proper way of accurately recognizing the pre-defects for the welding target, and rely solely on the expert, thereby reducing the work efficiency and the high cost.

One embodiment of the present invention relates to a steel structure surface movement apparatus using a magnetic force that automatically moves on the steel structure using a magnetic force.

One embodiment of the present invention relates to a steel structure surface movement apparatus using a magnetic force to perform the necessary work while automatically moving on the steel structure.

One embodiment of the present invention relates to a steel structure surface movement apparatus using a magnetic force integrally formed with a transfer trolley with wheels, and having a magnetic force device in the transfer trolley.

One embodiment of the present invention relates to a steel structure surface movement apparatus using a magnetic force to form a transfer cart in a plurality of frames, the frame is connected to the joint to move effectively in the steel structure.

One embodiment of the present invention relates to a steel structure surface movement apparatus using a magnetic force to effectively move in a steel structure having a curvature by applying a curvature adjusting device to the transfer bogie.

One embodiment of the present invention relates to a steel structure surface movement apparatus using a magnetic force to effectively adhere the tool device to the surface of the steel structure even when the transport bogie is vertical and inverted on the surface of the steel structure.

In addition, an embodiment of the present invention includes a magnetic force that can work while moving in the horizontal, vertical and inverted state through steel structures such as rails or roads, including products, devices, structures, machines, etc. made of a magnetic force acting material It relates to a steel structure surface moving device used.

Steel structure surface moving apparatus using a magnetic force according to an embodiment of the present invention, a transfer bogie, a wheel mounted and driven on the transfer bogie, a first motor for providing a driving force to the wheel, and is mounted on the transfer bogie By generating and adjusting the strength of the magnetic force, it may include a magnetic force device for bringing the wheel in close contact with the target steel structure.

Steel structure surface movement apparatus using a magnetic force according to an embodiment of the present invention, the first arm and the second arm mounted on both sides of the transfer bogie, and between the first arm and the second arm on the opposite side of the transfer bogie It may further include a tool device mounted to.

Steel structure surface movement apparatus using a magnetic force according to an embodiment of the present invention, the second motor is mounted to one of the first arm and the second arm, the second motor is connected to the tool device by a belt Can be.

Steel structure surface movement apparatus using a magnetic force according to an embodiment of the present invention, a spring for connecting at least one of the first arm and the second arm and the transfer bogie, and on the opposite side of the transfer bogie, the first arm And a stopper mounted at the tip of the second arm and protruding toward the target steel structure.

The first motor may be mounted to the transport cart and connected to the drive shaft on which the wheel is mounted by a belt.

The magnetic force device includes a first magnetic force device mounted to the transfer bogie, wherein the first magnetic force device is provided between the transfer bogie and the target steel structure and includes a plurality of first permanent magnets and the first permanent magnet. It may include a panel for mounting a first coil for winding each, and the height adjustment bolt for adjusting the height of the panel by connecting the panel to the transfer cart.

The height adjustment bolt, the screw is mounted in a direction perpendicular to the plane of the feed cart, the panel may be mounted to the lower end of the height adjustment bolt with a ball joint.

The height adjustment bolt, the left height adjustment bolt and the right height adjustment bolt formed on both sides of the center line of the transfer bogie, the left and right height adjustment bolts, respectively, can be connected to the ball joint on the opposite side of the panel. .

The magnetic force device includes a second magnetic force device mounted to the wheel, wherein the second magnetic force device is provided on a drive shaft for mounting the wheel, the drive shaft portion for supplying power, and the drive shaft portion mounted to the wheel And a wheel unit for mounting a plurality of second permanent magnets and a second coil winding the second permanent magnets so as to turn on / off power supplied from the driving shaft part to partially remove and maintain magnetic force. have.

The drive shaft portion includes a bearing for rotatably supporting the drive shaft, an annular plate member mounted on a side of the bearing, a bearing mounted on an inner surface of the annular plate member to support the bearing, and the annular plate member. Mounted on one side of the may include a power supply plate for supplying power.

The wheel portion, a mounting groove formed in a plurality in the circumferential direction on the wheel, a casing embedded in the mounting groove to embed the second permanent magnet and the second coil, and connected to the second coil of the casing Protruding on the side may include a contactor to selectively contact the current carrying plate.

Steel structure surface movement apparatus using a magnetic force according to an embodiment of the present invention, the transfer bogie is formed by connecting a plurality of frames by joints, the front frame and the rear frame are respectively formed to drive the front and rear in the transfer bogie A wheel, a first motor that provides a driving force to the wheel, a caster mounted to the joint portion formed between adjacent frames among the frames, and closely attached to a target steel structure facing the joint portion, and a plurality of casters And a magnetic force device mounted to each of the frames to generate a magnetic force and to adjust the strength and weakness of the magnetic force to closely contact the wheel and the caster to a target steel structure.

The joint may be formed as one to connect the front frame and the rear frame to each other.

The rear connection portion of the front frame and the front connection portion of the rear frame may be connected by pins to form the joint.

The magnetic force device may include a first magnetic force device provided on the front frame and facing the surface of the steel structure, and a second magnetic force device provided on the rear frame and facing the surface of the steel structure. .

Steel structure surface movement apparatus using a magnetic force according to an embodiment of the present invention may further include a curvature adjusting device for adjusting the curvature connecting the front frame and the rear frame.

The curvature adjusting device may include a horizontal bar that connects the first pillar and the second pillar to be mounted in the front-rear direction of the transfer bogie at at least one of the right and left sides in the width direction of the transfer bogie. It may include.

The first pillar is mounted to the front frame with a pin and installed in the vertical direction, and the second pillar is mounted to the rear frame with a pin and installed in the vertical direction, and the horizontal bars are respectively front and rear. And a front long hole and a rear long hole to be formed, and connect the upper end of the front long hole and the first pillar with a first bolt, and connect the upper end of the rear long hole and the second pillar with a second bolt.

The transport cart may further include a center frame provided between the front frame and the rear frame.

The joint may be formed in two to connect the front frame and the center frame to each other and to connect the center frame and the rear frame to each other.

The rear connection portion of the front frame and the front connection portion of the center frame are connected by pins to form one of the joints, and the rear connection portion of the center frame and the front connection portion of the rear frame are connected by pins to connect the other one of the joints. Can be formed.

The magnetic force device may include a first magnetic force device provided on the front frame and facing the surface of the steel structure, a second magnetic force device provided on the center frame and facing the surface of the steel structure, and the rear frame. It may include a third magnetic force device provided to face the surface of the steel structure facing.

Steel structure surface movement apparatus using a magnetic force according to an embodiment of the present invention may further include a curvature adjusting device for adjusting the curvature connecting the front frame, the center frame and the rear frame.

The curvature adjusting device may include a first pillar, a second pillar, and a third pillar, the first pillar, the second pillar, and the at least one side of the transfer bogie, which are mounted in the front-rear direction of the transfer bogie. It may include a horizontal bar connecting the third pillar.

The first pillar is mounted to the front frame with a pin and installed in a vertical direction, and the second pillar is mounted to the center frame with a pin and installed in a vertical direction and forms a vertical long hole at an upper end thereof. The three pillars are mounted to the rear frame with pins and installed in the vertical direction, and the horizontal bar includes a front long hole and a rear long hole respectively formed at the front and the rear, and the upper end of the front long hole and the first pillar. The first bolt may be connected, and the center of the horizontal bar and the vertical long hole may be connected by a second bolt, and the rear long hole and the upper end of the third pillar may be connected by a third bolt.

Steel structure surface movement apparatus using a magnetic force according to an embodiment of the present invention, the transfer bogie is formed by connecting a plurality of frames by joints, the front frame and the rear frame are respectively formed to drive the front and rear in the transfer bogie Wheels, a first motor providing a driving force to the wheels, casters mounted on the joint portions formed between adjacent frames among the frames, and closely attached to a target steel structure facing the joint portions, a plurality of the A magnetic force device mounted to each of the frames disposed between the front frame and the rear frame to generate a magnetic force and to adjust the strength of the magnetic force to closely adhere the wheel and the caster to a target steel structure, on the frames A longitudinal member disposed along a connecting direction of the frames; And a plurality of vertical members disposed between each of the longitudinal member and the plurality of frames and connecting the longitudinal member and each of the frames.

The vertical member may be formed of a length adjustable hydraulic or pneumatic cylinder.

Steel structure surface movement apparatus using a magnetic force according to an embodiment of the present invention, the arm is pivotally mounted to the frame, it may further include an arm pressing cylinder for connecting the arm and the frame facing each other. .

Steel structure surface movement apparatus using a magnetic force according to an embodiment of the present invention, the motor pressing member is disposed in the longitudinal direction on the frame, the motor pressing member, one end is connected to the first motor, The central part may be pivotally connected to an adjacent frame of the frame on which the first motor is mounted, and the other end thereof may be connected to a motor pressurizing cylinder mounted to the frame opposite to the first motor.

Steel structure surface movement apparatus using a magnetic force according to an embodiment of the present invention, the transfer bogie is formed by connecting a plurality of frames by joints, the front frame and the rear frame respectively formed front and rear in the transfer bogie A first motor providing a driving force to one of the first and second sprockets, the first and second sprockets, a cylinder respectively formed in the frames between the front frame and the rear frame, and mounted on the cylinders to face the target steel structure. A support sprocket, a track member which is hooked to the first and second sprockets and the support sprocket to form a closed curve and is in close contact with the target steel structure, and is mounted to each of the plurality of frames to generate magnetic force and to adjust the strength of the magnetic force. And a magnetic force device for bringing the track member into close contact with the target steel structure.

The cylinder may be formed of a hydraulic cylinder or a shock absorber.

Steel structure surface moving apparatus according to an embodiment of the present invention, the plurality of bent members formed to be connected to each other formed to absorb the bending according to the surface state of the target steel structure, the connecting line of the outer end, forming a closed curve of the bending members, A connection member connected to at least two flexure members of the flexure members to absorb a change in length according to the flexure, disposed along the periphery of the flexure members, connected to correspond to the flexure of the flexure members, and formed to interrupt each magnetic force; Contact spur members, a drive sprocket coupled to the contact control members to provide a driving force, and a driven sprocket for guiding movement of the contact control members on the opposite side of the drive sprocket.

The bending members may be connected to the pins, and may be formed to have both ends smaller than the central width so as to be bent and bent around the pins.

The bending members may further include a front bending member and a rear bending member which are disposed at the foremost and rearmost portions and are formed in a fan shape so as to change a traveling direction of the contact control members.

The connecting member may be supported by one shaft of one of the two bending members, the shaft of the other bending member, and may form a shaft support portion as a slot hole.

Steel structure surface movement apparatus according to an embodiment of the present invention, one of the bending member is one of the bending member is provided with an on control member for turning on the magnetic force of the contact control member, the other bending member is the magnetic force of the contact control member And an off control member for turning off the contact control member, the contact control member may include a lever for rotating the permanent magnet embedded in the housing to be controlled by the on control member and the off control member.

The bending member may form a guide groove on the opposite side of the contact control member, and the contact control member may include a roll mounted to the guide groove, and a hanger member connecting the roll to the housing.

The housing may set a distance between the permanent magnet and the surface of the structure object when the permanent magnet generates a magnetic force by the on control member.

The housing may form a protrusion for guiding the rotation of the permanent magnet, and the permanent magnet may form a rotation groove corresponding to the protrusion.

The housing may form a coupling groove coupled with the driving sprocket.

The bent members include first bent members and second bent members disposed on both sides facing each other, and the connection member is one of the first bent members and one of the second bent members facing each other. To each other to include a cross member, wherein the contact control members may include first contact control members provided on the side of the first bending members and second contact control members provided on the side of the second bending members. Can be.

The connection members may include a first connection member connected to the first bending members and a second connection member connected to the second bending members.

The drive sprocket may include a first drive sprocket for providing a driving force to the first contact control member and a second drive sprocket for providing a driving force to the second contact control member.

The first driving sprocket may be connected to the first driving motor, and the second driving sprocket may be connected to the second driving motor.

As described above, according to one embodiment of the present invention, a magnetic force device and a wheel are provided on the transfer truck, and the wheel is driven while applying a magnetic force between the magnetic force device and the steel structure, thereby enabling the automatic movement on the steel structure. have.

Since a tool device is mounted and driven on the transport cart, there is an effect of enabling the necessary work with the movement of the transport cart on the steel structure.

Forming the feed cart in a plurality of frames, connecting the frame to the joint and also provided with a curvature adjusting device has the effect of stably moving the feed cart along the curvature of the steel structure.

Since the arm mounted on the frame of the feed cart is pressurized by the arm pressurizing cylinder, there is an effect of effectively bringing the tool device to the surface of the steel structure even when the feed cart is inverted from the surface of the steel structure.

Since the bending members, the connection member, the contact control members, the driving and driven sprocket is provided, there is an effect to move while absorbing the bending according to the surface state of the target steel structure.

Since the contact interrupting members are attached to the surface of the target steel structure at the same time by magnetic force and then detached, there is an effect of enabling a more natural movement.

1 is a perspective view of a steel structure surface movement apparatus using a magnetic force according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1.
3 is a cross-sectional view taken along line BB of FIG. 2.
4 is a cross-sectional view of a steel structure surface movement apparatus using a magnetic force according to a second embodiment of the present invention.
5 is an exploded perspective view of the magnetic force device provided in the wheel.
6 is an operational state diagram of the magnetic force device of FIG.
7 is a perspective view of a steel structure surface movement apparatus using a magnetic force according to a third embodiment of the present invention.
8 is a perspective view of the feed cart of FIG.
9 is an operational state diagram showing that the traveling direction of the transfer cart is switched by an annular permanent magnet and a coil embedded in the front wheel of the front frame.
FIG. 10 is a side view illustrating a state in which the steel structure surface moving device using the magnetic force of FIG. 7 is disposed along the circumferential direction on the inner circumferential surface of the steel pipe.
11 is a perspective view of a steel structure surface movement apparatus using a magnetic force according to a fourth embodiment of the present invention.
12 is a perspective view of the feed cart of FIG.
Fig. 13 is an operational state diagram showing that the traveling direction of the feed cart is switched by an annular permanent magnet and a coil embedded in the front wheel of the front frame.
FIG. 14 is an enlarged detailed perspective view of the front portion of the steel structure surface moving device using the magnetic force of FIG.
FIG. 15 is a side view illustrating a state in which the steel structure surface moving device using the magnetic force of FIG. 11 is disposed along the circumferential direction on the inner circumferential surface of the steel pipe.
16 is a perspective view of a steel structure surface movement apparatus using a magnetic force according to a fifth embodiment of the present invention.
17 is a plan view of a steel structure surface movement apparatus using a magnetic force according to a sixth embodiment of the present invention.
18 is a side view of FIG.
19 is a plan view of a steel structure surface movement apparatus using a magnetic force according to a seventh embodiment of the present invention.
20 is a side view of FIG.
FIG. 21 is a perspective view of the coupling member, cross member, drive sprocket, and driven sprocket in FIG. 19; FIG.
FIG. 22 is a rear view of the contact control member in XII in FIG. 20. FIG.
FIG. 23 is a longitudinal sectional view of the contact control member of FIG.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

1 is a perspective view of a steel structure surface movement apparatus using a magnetic force according to a first embodiment of the present invention, Figure 2 is a cross-sectional view taken along the line A-A of FIG.

1 and 2, the steel structure surface moving device (hereinafter referred to as "surface moving device") 1 using the magnetic force according to the first embodiment of the present invention is a feed cart 10 forming a base , A magnetic force device for generating a magnetic force, for example, the first magnetic force device 20 and the second magnetic force device 40, and a wheel 30 for moving the transport cart 10.

The surface movement device 1 includes a first motor 71 for driving the wheel 30 and a second motor 75 for driving the tool device 60, and is provided for mounting the tool device 60. It further comprises a first arm 50 and a second arm 55.

The first arm 50 and the second arm 55 are formed in a symmetrical structure with each other and are provided on both sides of the transport trolley 10 so as to be pivotally mounted on the transport trolley 10 so as to be pivotable.

The tool device 60 is disposed between the first and second arms 50 and 55 on the opposite side of the feed cart 10 and is mounted at the ends of the first and second arms 50 and 55. Tool device 60 may be formed in various ways depending on the type of work, is basically mounted by applying a rotating structure.

For example, the tool device 60 may be formed as a tool device for operations such as cleaning, welding, cutting, blasting, drilling, or painting. Can be. In addition, the tool device 60 is formed as a manipulator (manipulator) that is remotely controlled by the operator in a place where the worker's direct access is difficult, and can perform general tasks like a robot, and attach various measuring devices to monitor the work situation in real time. Feedback can be controlled.

The first motor 71 is mounted on the transport cart 10 and is connected to the drive shaft 81 on which the wheels 30 are mounted through the belt 72, thereby transmitting rotational power to the wheels 30. That is, the rotational power of the first motor 71 is used to drive the wheel 30 forward or backward.

The second motor 75 is mounted to the first arm 50 and connected to the tool device 60 through the belt 76 to transmit rotational power to the tool device 60. That is, the rotational power of the second motor 75 is used to drive the tool device 60. The second motor may be mounted to the second arm 55 and connected to rotate the tool device 60 (not shown).

The surface movement device 1 includes a stopper 80 provided at the tip of each of the first and second arms 50 and 55, and a spring 90 connecting the first arm 50 and the feed cart 10. It may further include.

The stopper 80 is attached to each tip of the first and second arms 50 and 55 to support the first and second arms 50 and 55 with respect to the steel structure G, thereby providing the tool device 60 with the tool device 60. The gap between the steel structures G may be maintained at a predetermined size. Accordingly, the stopper 80 prevents excessive close contact between the surface of the tool device 60 and the steel structure G.

The spring 90 pulls the first arm 50 toward the feed cart 10 to prevent the first arm 50 from being excessively pivoted about the pivot 10a, thereby turning the first arm 50. Limit the angle The spring may connect the second arm and the transfer bogie to limit the pivot angle of the second arm (not shown). The spring 90 also prevents the tool device 60 from springing up from the steel structure G during operation.

Since the first and second arms 50 and 55 have one end connected to the tool device 60 and the other end connected to the feed cart 10, respectively, the spring 90 has the first and second arms ( The same effect can be obtained even if it is connected to any one of 50, 55), or both.

That is, by the interaction between the attraction force of the spring 90 and the bearing force of the stopper 80, the first and second arms 50 and 55 and the tool device 60 are preset positions with respect to the steel structure G. Maintain relationships.

The magnetic force device, ie the illustrated first and second magnetic force devices 20, 40, generates a magnetic force, allowing the surface movement device 1 to move on the steel structure G while maintaining attraction with the steel structure G. . For example, the first magnetic force device 20 may be mounted on the transport cart 10, and the second magnetic force device 40 may be provided on the wheel 30.

More specifically, the first magnetic force device 20 is disposed in the center of the transport cart 10 and mounted in a structure for selectively generating / removing magnetic force while lifting in a direction perpendicular to the plane of the transport cart 10. , Forming the steel structure (G) and the attraction force and adjusting the strength of the attraction force so that the wheel 30 provided on the transport cart 10 is in close contact with the steel structure (G), and also of the wheel 30 and the transport cart (10) Change the direction of travel.

The second magnetic force device 40 is mounted in a structure for selectively generating / removing magnetic force in accordance with the rotation of the wheel 30, to form a force and selectively remove the attraction force with the steel structure (G), of the wheel 30 In addition to the driving force, the driving force of the wheel 30 also prevents the phenomenon, and maintains the attractive force on the irregular surface of the steel structure (G) so as not to deviate from the surface.

Referring to Figure 2, the first magnetic force device 20 is a height adjustment bolt 21 is installed through the transport cart 10 vertically, the panel connected to the height adjustment bolt 21 in the lower portion of the transport cart 10 And a permanent magnet 25 mounted to the panel 24.

The height adjustment bolt 21 forms a spiral portion 22 and is screwed into the fastening hole 11 of the transport cart 10 to adjust the height of the panel 24 with respect to the transport cart 10, that is, the panel 24. ) And the separation distance between the steel structure (G) can be adjusted.

The height adjustment bolt 21 forms a ball joint portion 23 at the end thereof and is coupled to the mounting portion 23a formed on the panel 24, so that the structure of connection with the panel 24 despite the rotation of the spiral portion 22 is formed. Can be formed and maintained.

The panel 24 has a plurality of permanent magnets 25, each of which is wound with a coil (not shown). The permanent magnets 25 generate attractive force between the steel structure G facing the panel 24, and the coil removes the magnetic force generated in the permanent magnet 25 according to the application of power.

That is, the permanent magnets 25 generate a force for bringing the transfer cart 10 into close contact with the steel structure G through the panel 24 and the height adjusting bolt 21, thereby moving the surface moving device 1 to the steel structure G. To ensure that the required work is possible. The coil temporarily removes the magnetic force of the permanent stone 25 to weaken or eliminate the attractive force between the permanent magnet 25 and the steel structure (G), thereby facilitating the movement of the surface moving device (1) on the steel structure (G). .

3 is a cross-sectional view taken along the line B-B in FIG. Referring to FIG. 3, in the first magnetic force device 20, the height adjusting bolts 21 are formed at both sides of the center line X of the feed cart 10, for example, the left height adjusting bolts 21a provided on the left side. And a right height adjustment bolt 21b provided on the right side.

The left height adjusting bolt 21a and the right height adjusting bolt 21b may be coupled with the fastening holes 11 to protrude to different lengths from the lower side of the transport cart 10. Accordingly, the panel 24 is disposed to be inclined leftward or rightward. For example, the left end of the panel 24 may be disposed closer to the steel structure G than the right end, or the right end of the panel 24 may be disposed closer to the steel structure G than the left end.

Referring to FIG. 3, when the right height adjusting bolt 21b protrudes further down the panel 24 than the left height adjusting bolt 21a, the right end of the panel 24 is formed of a steel structure G than the left end. Closer to).

Therefore, the attraction force due to the magnetic force formed between the right end of the panel 24 and the steel structure G becomes stronger than the attraction force due to the magnetic force formed between the left end and the steel structure G, namely, the wheel 30a in the transport cart 10. The frictional force of is greater than the frictional force of the left wheel 30b. Therefore, the right wheel 30a having a large frictional force proceeds slowly, and the left wheel 30b having a small frictional force proceeds relatively quickly.

As a result, when the rotational power for driving the both wheels 30a and 30b is the same, the surface moving device 1 moves forward on the steel structure G, for example, the inner surface of the steel pipe, and due to the difference in frictional force, In the right to proceed to the right, thereby causing the trajectory of the wheel 30 to form a spiral.

In other words, the surface movement device 1 may start work on one side of the steel pipe and perform the work while passing through the entire range inside the steel pipe. In addition, when the protruding lengths of the left height adjusting bolt 21a and the right height adjusting bolt 21b are reversed, the surface movement device 1 forms a spiral trajectory biased in the opposite direction as it proceeds.

4 is a cross-sectional view of a steel structure surface movement apparatus using a magnetic force according to a second embodiment of the present invention.

Referring to Fig. 4, a portion different from the first embodiment will be described. In the surface moving apparatus 2 of the second embodiment, the feed cart 210 has a right end mounting portion 12 and a left end mounting portion 13 on both sides. ). The wheel 30 is covered with the wheel housings 31c and 31d. The wheel housings 31c and 31d and the right and left end mounting portions 12 and 13 are connected to each other via the vertical shafts 32c and 32d and the springs 33c and 33d.

The vertical shafts 32c and 32d are mounted on one side of the wheel housings 31c and 31d and the other side is mounted on the right end mounting portion 12 and the left end mounting portion 13, respectively, to form a connection structure. The springs 33c and 33d are provided on the outer periphery of the vertical shafts 32c and 32d, and are interposed between the wheel housings 31c and 31d and the right and left end mounting portions 12 and 13, respectively, to elastically support them.

In the state supported by the springs 33c and 33d, the left and right end height adjustment bolts 21a and 21b are adjusted so that the right height adjustment bolt 21b is lower than the left height adjustment bolt 21a of the panel 24. If more protrudes, the right end in the panel 24 may be disposed closer to the steel structure (G) than the left end.

At this time, the attraction force by the magnetic force of the right end in the panel 24 acts more strongly on the steel structure (G) than the attraction force by the magnetic force of the left end, and while the spring 33c on the right side is compressed, the feed cart 10 is Tilt to the right.

In the end, when the rotational power for driving the both wheels 30c and 30d is the same, the surface movement device 2 moves forward on the inner surface of the steel structure G, for example, the steel pipe, while Along the slope, it proceeds from left to right, resulting in a spiral trajectory.

4, the surface moving device 2 of the second embodiment absorbs a substantial part of the inclination of the feed cart 10 in the springs 33c and 33d, so that the helix is more dense than the surface moving device 1 of the first embodiment of FIG. Enable progress.

5 is an exploded perspective view of the magnetic force device provided in the wheel. 3 and 5, the second magnetic force device 40 forms an attraction force by the magnetic force between the wheel 30 and the steel structure G in contact with the wheel 30, thereby preventing the wheel 30 from being idle. And, further provides the driving force of the wheel (30). Accordingly, the wheel 30 is further supplied with the driving force by the second magnetic force device 40 while being basically supplied with the driving force through the first motor 71.

For example, the second magnetic force device 40 includes a drive shaft portion 51 and a wheel portion 52 fixedly formed on the drive shaft 81 to supply power. The wheel part 52 is formed on the wheel 30 facing the drive shaft part 51, and the electrical connection with the drive shaft part 51 is turned on / off as the wheel 30 rotates.

In the drive shaft portion 51, the bearing support 15 rotatably supports the drive shaft 81, and the annular plate member 41 is mounted on the side surface of the bearing support 15. As shown in FIG. The bearing 42 is mounted on the inner surface of the annular plate member 41 and despite the installation of the annular plate member 41 fixed to the feed cart 10 via the bearing support 15, the drive shaft 81 is smooth. Enable rotation The conduction plate 43 is formed in an arc shape and mounted on one side of the annular plate member 41 and connected to an external power source (not shown) to maintain a state capable of supplying power to the wheel part 52.

In the wheel part 52, the wheel 30 forms a plurality of mounting grooves 35, and the casing 44 is mounted to the mounting groove 35. Permanent magnet 46 is wound in a coil 45 is embedded in the casing (44). The contact 47 protrudes on the side of the casing 44 to face the current carrying plate 43 and is electrically connected to the coil 45.

6 is an operational state diagram of the magnetic force device of FIG. Referring to FIG. 6, the wheel 30 is driven to rotate in the direction of the arrow 38 by the driving of the first motor 71. At this time, when looking at the second magnetic force device 40, the contact 47a of the casing 44a in close contact with the steel structure G among the plurality of casings 44 provided in the wheel 30 is connected to the current carrying plate 43. It is switched in the separated state to form a contact state.

Therefore, the power is applied to the coil 46 wound on the permanent magnet 46 of the casing 44a, thereby removing the magnetic force of the permanent magnet 46. Since the contact 47b of the other casing 44b disposed in front of the casing 44a remains separated from the conduction plate 43, the permanent magnet of the casing 44b maintains magnetic force to attract the steel structure G and the attraction force. To form. Therefore, the wheel 30 proceeds in the direction of the arrow 37 while rotating in the direction of the arrow 38.

At the same time, the contactor 47c of the casing 44c disposed behind the casing 44a that attracts the steel structure G maintains the contact state with the conducting plate 43 to supply power to the coil of the casing 44c. Since the magnetic force of the permanent magnet is removed because it maintains the applied state, the permanent magnet does not form attractive force with the steel structure (G).

As such, the second magnetic force device 40 forms a magnetic force in the front portion of the wheel 30 and removes the magnetic force in the rear portion, thereby preventing the idleness of the wheel 30 and assisting the progress of the wheel 30. In addition, when the steel structure (G) is a steel pipe, it is possible to drive the wheel 30 without departing from the curved surface of the deformed steel pipe rather than the round.

Referring again to Figures 1 and 2, for example, the tool device 60 is a cylindrical rotary cutter or a cylindrical chain cutter, which can remove the scale attached to the inner peripheral surface of the steel pipe, can wipe the inner peripheral surface of the steel pipe after removing the scale Cylindrical brush, including a cylindrical blow device for giving a blasting effect on the inner peripheral surface of the steel pipe after the brushing operation.

7 is a perspective view of the steel structure surface moving apparatus using a magnetic force according to a third embodiment of the present invention, Figure 8 is a perspective view of the conveyance bogie of FIG. Compared to the surface movement apparatuses 1 and 2 according to the first and second embodiments, the surface movement apparatus 3 of the third embodiment is formed to be able to move more effectively while corresponding to the curved surface of the steel structure G.

For example, the surface movement device 3 of the third embodiment forms the conveyance trolley 310 into a plurality of frames, two frames, and joints the frames. Therefore, the feed cart 310 may be bent and deformed to correspond to the curved surface of the steel structure (G).

In the third embodiment, different parts will be described in comparison with the first and second embodiments, and descriptions of similar or identical parts will be omitted.

7 and 8, the transport cart 310 includes a front frame 320 forming a front portion and a rear frame 330 forming a rear portion, and a rear connection portion 321 of the front frame 320. ) And the front connection portion 331 of the rear frame 330 is formed by connecting to each other with a pin (311).

Since the surface movement device 3 of the third embodiment forms the transport cart 310 in a plurality of frames, for example, two front frames 320 and a rear frame 330, the magnetic force device is also plural, for example, , Formed of two. The magnetic force device is provided in each frame to form magnetic force and attraction between each frame and the steel structure (G).

For example, the magnetic force device includes a first magnetic force device 341 provided in the front frame 320 and a second magnetic force device 343 provided in the rear frame 330. Since the first and second magnetic force devices 341 and 343 may be formed in the same manner as the first magnetic force device 20 of the first embodiment, a detailed description thereof will be omitted.

However, the first magnetic force device 341 forms a magnetic force and attraction between the front frame 320 and the surface of the steel structure (G) facing it, the second magnetic force device 343 is opposed to the rear frame 330 Magnetic force and attractive force are formed between the surfaces of the steel structure (G).

The first arm 361 and the second arm 362 are rotatably mounted on both sides of the transport trolley 310 by a pivot 310a, respectively, and extend to the front of the transport trolley 310.

The tool device 350 is provided between the front end of the first arm 361 and the second arm 362 to be rotatably mounted. For example, as illustrated in FIG. 1, the tool device 350 may be formed as a cylindrical rotary cutter 351 to remove the scale attached to the surface of the steel structure G in front of the front frame 320. .

The feed cart 310 further includes a curvature adjusting device 370 to move effectively in response to the surface of the steel structure G having a curvature. That is, the curvature adjusting device 370 adjusts and determines the curvature of the front frame 320 and the rear frame 330 to correspond to the curvature of the steel structure (G).

The wheels 322, 323, 332, and 333 are mounted on the transport trolley 310 to enable movement of the transport trolley 310. For example, the front wheels 322 and 323 may be mounted to the front frame 320 to support the front frame 320, and the rear wheels 332 and 333 may be mounted to the rear frame 330 to the rear frame 330. It transmits driving force while supporting.

The first motor 390 is mounted to the rear frame 330, and is then mounted to the rear frame 330 to transmit forward or backward driving force to the wheels 332 and 333. The configuration for transmitting the driving force from the first motor 390 to the rear wheels 332 and 333 may be variously formed, such as belt transmission, chain transmission, and gear transmission, and here only one example (belt 391) in the drawings. Examples and detailed description thereof will be omitted.

Since the transport cart 310 forms a joint by connecting the rear connection portion 321 of the front frame 320 and the front connection portion 331 of the rear frame 330 with the pins 311, the caster 380 provided at the joint portion is formed. ).

The caster 380 is in contact with the surface of the steel structure (G) facing the joint portion of the feed cart 310, thereby maintaining a constant distance between the joint portion and the surface of the steel structure (G). Therefore, a uniform magnetic force and attractive force may be formed in the entire transport cart 310, and the phenomenon in which the transport cart 310 is attached to the steel structure G is prevented.

The caster 380 may be formed at the rear connecting portion 321 of the front frame 320 and the front connecting portion 331 of the rear frame 330 to uniformly support the joint portion. In addition, each of the rear connection portion 321 and the front connection portion 331 may be disposed on both sides of the transport cart 310 in the width direction.

Therefore, the feed cart 10 is formed by the front wheels 322 and 323 of the front frame 320, the rear wheels 332 and 333 of the rear frame 330, and the plurality of casters 380, and thus the surface of the steel structure G. Is stably supported.

The front wheels 322 and 323 of the front frame 320 have an annular permanent magnet (not shown) and a coil (not shown) wound around the annular permanent magnet. The first embodiment illustrates a structure in which the segmented permanent magnet 45 and the coil 46 wound on the permanent magnet are embedded in the mounting groove 35 of the wheel 30.

Therefore, the third embodiment applies a configuration in which the permanent magnet is switched from the segment type to the annular shape, and the coil is wound on the annular permanent magnet to be mounted on the front wheels 322 and 323. The description of the components mounted on the wheels 322 and 323 will be omitted.

The annular permanent magnet and the coil provided on each of the front wheels 322 and 323 have different sizes between each of the front wheels 322 and 323 and the steel structure G in contact with the front wheels 322 and 323 to change the traveling direction of the transport cart 310. Allows you to have magnetic force and manpower

That is, by controlling the frequency of the power applied to the coil wound on each annular permanent magnet of the front wheels (322, 323) differently, the magnetic force and the magnitude of attraction are different. Due to this difference, the front wheels 322 and 323 are turned left or right in the travel direction.

For example, among the front wheels 322 and 323, a power of 10 Hz frequency is supplied to the coil wound on the annular permanent magnet of the left wheel 322, and 60 Hz to the coil wound on the annular permanent magnet of the right wheel 323. When the power of the frequency is supplied, stronger magnetic force and attractive force are formed in the left wheel 322 of the low frequency than the right wheel 323 of the high frequency. Therefore, the feed cart 310 is moved in the direction of the straight line in the direction of strong magnetic force and attraction, that is, the dotted line 316 in the diagonal direction (ie, left direction) shown in FIG.

When the frequency of the power applied to the coil wound on the annular permanent magnet of each of the left wheel 322 and the right wheel 323 is controlled to 60 Hz and 10 Hz, ie, in reverse, the feed cart 310 moves to the right in the straight direction of travel. The process is switched to (not shown).

The frequency of the power applied to the coil wound on the annular permanent magnet of each of the left wheel 322 and the right wheel 323 is controlled at 10 Hz and 60 Hz at the same level, and subsequently controlled at 60 Hz and 10 Hz, and then the frequency of the power source. In the same manner, the feed cart 310 proceeds while switching directions to straight lines, left lines, and straight lines, as shown by the dotted lines shown in FIG.

Furthermore, if the frequency difference of the power applied to the coil wound on the annular permanent magnet of each of the left wheel 322 and the right wheel 323 is controlled to be greater than 50 Hz, the feed cart 310 is made to change direction larger. On the inner circumferential surface of the steel pipe with respect to the straight direction can proceed in a finer spiral than the state shown in FIG.

On the other hand, the annular permanent magnet and the coil provided in the front wheels (322, 323) is an embodiment for changing the direction of the transfer cart 310, it can be replaced by various configurations. For example, when the left and right wheels are mounted on independent shafts, and the motors are independently connected to and controlled by the shafts, the direction of the feed cart 310 can be changed (not shown).

FIG. 10 is a side view illustrating a state in which the steel structure surface moving device using the magnetic force of FIG. 7 is disposed along the circumferential direction on the inner circumferential surface of the steel pipe. 10, the tool device 350 will be described by taking the cylindrical rotary cutter 351 as an example.

The cylindrical rotary cutter 351 is mounted to the shaft 352 to rotate integrally with the shaft 352, the shaft 352 is provided between the end of the first arm 361 and the second arm 362 is rotatable Is fitted.

The second motor 353 is mounted to the first arm 361 to enable rotational drive of the cylindrical rotary cutter 351. As in the first motor 390, the configuration for transmitting the driving force from the second motor 353 to the cylindrical rotary cutter 351 can be formed in various ways, such as belt transmission, chain transmission, and gear transmission, here the drawing Only one example (belt 354) is illustrated and detailed description thereof is omitted.

Dust collection cover 356 is formed in a structure that covers the cylindrical rotary cutter 351 on the opposite side of the steel structure (G) surface, is mounted on both ends of the shaft 352 in a structure that does not interfere with the rotation of the shaft 352.

The rotary brush device 357 is rotatably mounted to the dust collecting cover 56 at the rear of the cylindrical rotary cutter 351. The rotary brush device 357 is connected to the second motor 353 by a belt 358 to receive the rotational driving force.

While the feed cart 310 is moved by the driving of the first motor 390, the rotating brush device 357 and the cylindrical rotating cutter 351 are driven together by the driving of the second motor 353. Thus, while moving, the cylindrical rotary cutter 351 removes the scale attached to the steel structure G, for example, the inner surface of the steel pipe of FIG. 9, and the rotary brush device 357 brushes the scaled inner surface. .

At this time, the dust cover 356 collects dust scattered by the cylindrical rotary cutter 351 and the rotary brush device 357, the collected dust is discharged through the suction pipe 359 connected to the dust cover 356. Can be.

Referring again to FIG. 7, the pedestal 365 is mounted to the feed cart 310, ie, the front frame 320, covering the first and second arms 361, 362. In addition, the springs 368 and 369 are connected in one end to the first and second arms 361 and 362, respectively, and connected to the front frame 320 in the other end.

The first and second arms 361 and 362 mounted to the rear frame 330 by the pivot 310a have a limited range in which they are turned away from the steel structure G by the pedestal 365, and the spring 368 , 369, the cylindrical rotary cutter 351 and the rotary brush device 357 is in close contact with the surface of the steel structure (G).

In addition, the springs 368 and 369 exert a pulling force on the first and second arms 361 and 362 so that when the cylindrical rotary cutter 351 is located on the steel structure G, for example, the upper inner circumferential surface of the steel pipe, The cylindrical rotary cutter 351 is in close contact with the upper inner peripheral surface of the steel pipe, thereby enabling a smooth operation.

Pedestal 365 may be provided with anti-vibration rubber (366, 367) opposite the first and second arms (361, 362). The anti-vibration rubbers 366 and 367 absorb shocks and vibrations generated when the first and second arms 361 and 362 are folded and hit the pedestal 365.

Referring back to FIGS. 1 and 7, the curvature adjusting device 370 is mounted on both the left and right sides in the width direction of the feed cart 310, for example, the first and second pillars 371, which are mounted back and forth on each side. 373, horizontal bars 375 connecting the first and second pillars 371 and 373.

The first pillar 371 is mounted to the side of the front frame 320 as a pin 371a and is generally installed in the vertical direction. The second pillar 373 is mounted to the side of the rear frame 330 by a pin 373a and is generally installed in the vertical direction. Therefore, the imaginary extension lines of the first and second pillars 371 and 373 form intersection points above or below the feed cart 310 according to the concave or convex curvature of the inner surface of the steel structure G.

The first pillar 371 is connected to the front long hole 376 of the horizontal bar 375, and the first bolt 372 connects the upper end of the first pillar 371 to the front long hole 376. The second pillar portion 373 is connected to the rear long hole 377 of the horizontal bar 375, and the second bolt 374 connects the upper end of the second pillar 373 to the rear long hole 377.

The curvature adjusting device 70 bends the front frame 320 and the rear frame 330 of the feed cart 310 to correspond to the inner surface of the steel structure G, for example, a concave curvature. , The first bolt 372 is moved backward at the front long hole 376, and the second bolt 374 is moved forward at the rear long hole 377.

Then, when the curvature of the steel structure (G), by tightly tightening the first bolt 372 and the second bolt 374, the bending of the front frame 320 and the rear frame 330 is fixed. The feed cart 310 is formed in a state capable of traveling along the inner surface of the steel pipe.

Accordingly, the first and second magnetic force devices 341 and 343 mounted on the transport trolley 310 are disposed to approach the inner circumferential surface of the steel structure G, that is, the steel pipe as close as possible, and the inner circumferential surface of the steel pipe when the transport trolley 310 proceeds. Attachment can be prevented.

On the other hand, the steel structure (G), that is, the inner surface of the steel pipe may have a non-uniform curvature, in this case, the curvature adjusting device 70 may be applied. To this end, the first and second bolts 372 and 374 need to maintain a state in which they can be moved in the front and rear long holes 376 and 377 while maintaining the interconnected state.

At this time, the first bolt 372 is automatically moved back and forth in the front long hole 376 according to the curvature of the steel structure (G), and the second bolt 374 is automatically moved back and forth in the rear long hole 377. For smoother operation, the first and second bolts 372 and 374 can be replaced with pins and rolls (not shown).

FIG. 11 is a perspective view of a steel structure surface moving apparatus using a magnetic force according to a fourth embodiment of the present invention, and FIG. 12 is a perspective view of the feed cart of FIG.

In the third embodiment, the feed cart 310 is formed of two front and rear frames 320 and 330, and forms different configurations to correspond thereto. In contrast, in the fourth embodiment, the feed cart 4100 is formed of three front, center, and rear frames 4110, 4120, and 4130, and forms different configurations to correspond thereto. That is, the fourth embodiment shows the minimum configuration in which three or more frames can be formed in forming the transport cart 4100.

Referring to FIGS. 11 and 12, the feed cart 4100 includes a front frame 4410 forming a front portion, a rear frame 4430 forming a rear portion, and a center frame 4420 forming therebetween. . In addition, the feed cart 4100 connects the rear connection portion 4111 of the front frame 4110 and the front connection portion 4121 of the center frame 4120 with each other by pins 4141, and also the rear connection portion of the center frame 4120. 4122 and the front connecting portion 4131 of the rear frame 4130 are formed by connecting to each other with a pin (4142).

The surface moving apparatus 4 of the fourth embodiment forms the transfer cart 4100 in three frames, for example, the front frame 4410, the rear frame 4430, and the center frame 4420, so that the magnetic force device is also three. Form. The magnetic force device is provided in each frame to form magnetic force and attraction between each frame and the steel structure (G).

For example, the magnetic force device may include a first magnetic force device 4115 provided in the front frame 4110, a second magnetic force device 4215 and a third magnetic force provided in the rear frame 4130 provided in the center frame 4120. Device 4315. Since the first, second, and third magnetic force devices 4110, 4120, and 4130 may be formed in the same manner as the first magnetic force device 20 of the first embodiment, a detailed description thereof will be omitted.

That is, the first magnetic force device 4115 forms a magnetic force and an attractive force between the front frame 4110 and the surface of the steel structure (G) facing it. The second magnetic force device 4215 creates a magnetic force and attraction between the surface of the steel structure (G) facing the center frame (4120). The third magnetic force device 4315 forms a magnetic force and an attractive force between the rear frame 4130 and the surface of the steel structure (G) facing it.

The first arm 4301 and the second arm 4302 are pivotally mounted on both sides of the transport cart 4100 by pivots 4310a, respectively, and extend to the front of the transport cart 4100. The tool device 4200 may be mounted in the same structure as that in which the tool device 350 is mounted to the first and second arms 361 and 362 in the third embodiment.

The curvature adjusting device 4400 provided in the feed cart 4100 adjusts and determines the curvatures of the front, center, and rear frames 4110, 4120, and 4130 to correspond to the curvature of the steel structure G.

The wheels 117 and 137 may be mounted on the transport cart 4100 to allow movement of the transport cart 4100. For example, the front wheels 117a and 117b are mounted to the front frame 4110 to support the front frame 4110, and the rear wheels 137 are mounted to the rear frame 4130 to support the rear frame 4130. While transmitting the driving force.

The first motor 4140 is mounted on the rear frame 4130, and is then mounted on the rear frame 4130 to transmit driving force to the wheels 4137. The configuration for transmitting the driving force from the first motor 4140 to the rear wheels 4137 may be formed in various ways, such as belt transmission, chain transmission, and gear transmission, which is illustrated here by way of example only (belt 4391). Detailed description thereof will be omitted.

The caster 4127 is in contact with the surface of the steel structure (G) facing the joint portion of the feed cart 4100, thereby maintaining a constant distance between the joint portion and the surface of the steel structure (G). Therefore, a uniform magnetic force and attractive force may be formed in the entire transport cart 4100, and even when the number of joints increases, the phenomenon in which the transport cart 4100 is attached to the steel structure G is prevented.

The caster 4127 has a front connection 4121 and a rear connection 4122 and a front of the rear frame 4130 of the rear frame 4110 and the center frame 4120 of the front frame 4110 so as to uniformly support the joint portion. It may be formed in the connecting portion 4131, respectively. In addition, the transport cart 4100 of the rear connection portion 4111 of the front frame 4110 and the front connection portion 4121 and the rear connection portion 4122 of the center frame 4120 and the front connection portion 4131 of the rear frame 4130 respectively. It may be arranged at both sides in the width direction.

Therefore, the feed cart 4100 is stably supported on the surface of the steel structure G by the front wheels 4117 of the front frame 4110, the rear wheels 4137 of the rear frame 4130, and the plurality of casters 4127. do.

The front wheels 4117 of the front frame 4110 are formed in the same structure as the front wheels 322 and 323 of the third embodiment therein, and thus operate the same as shown in FIG. 13, and thus a detailed description thereof will be omitted. .

FIG. 14 is an enlarged detailed perspective view of the front portion of the steel structure surface moving device using the magnetic force of FIG. 11, and FIG. 15 is a side view showing a state in which the steel structure surface moving device using the magnetic force of FIG. 11 is disposed along the circumferential direction on the inner circumferential surface of the steel pipe; to be.

14 and 15, the tool device 4200 will be described, taking the cylindrical rotary cutter 4201 as an example. The cylindrical rotary cutter 4201 is mounted to the shaft 4220 to rotate integrally with the shaft 4220, as in the third embodiment, wherein the shaft 4220 is the first arm 4301 and the second arm 4302. It is provided between the ends of and is rotatably mounted.

The second motor 4230 is mounted to the first arm 4301 to enable rotational drive of the cylindrical rotary cutter 4201. As in the first motor 4140, the configuration for transmitting the driving force from the second motor 4320 to the cylindrical rotary cutter 4201 may be formed in various ways such as belt transmission, chain transmission, and gear transmission, and here, the drawings. Only one example (belt 4231) is illustrated and detailed description thereof is omitted.

Dust collection cover 4240 is formed in a structure that covers the cylindrical rotary cutter (4201) on the opposite side of the steel structure (G) surface, is mounted on both ends of the shaft (4220) in a structure that does not interfere with the rotation of the shaft (4220).

The rotary brush device 4250 is rotatably mounted to the dust collecting cover 4240 at the rear of the cylindrical rotary cutter 351. The rotary brush device 4250 is connected to the second motor 4230 by a belt 4232 to receive the rotational driving force.

As the feed cart 4100 driven by the first motor 4140 is moved, the rotary brush device 4250 and the cylindrical rotary cutter 4201 are driven together by the second motor 4230. Thus, while moving, the cylindrical rotary cutter 4201 removes the scale attached to the inner surface of the steel structure G, for example, the steel pipe of FIG. 15, and the rotary brush device 4250 also removes the scaled inner surface. Brush it.

At this time, the dust cover 4240 collects dust scattered by the cylindrical rotary cutter 4201 and the rotary brush device 4250, the collected dust is discharged through the suction pipe 4245 connected to the dust cover 4240. Can be.

11 and 15, the curvature adjusting device 4400 is mounted on the left and right sides of the feed cart 4100, and on each side, the first, second, and third pillars 4410, 4420, and 4430 mounted back and forth. ) And horizontal bars 4440 connecting them.

The first pillar 4410 is mounted on the side of the front frame 4110 with a pin 4410a and is generally installed in the vertical direction. The second pillar 4420 is mounted with the pin 4420a on the side of the center frame 4120. The first pillar 4430 is mounted to the side of the rear frame 4130 as a pin 4430a, and is installed in the vertical direction. The imaginary extension lines of the first, second, and third pillars 4410, 4420, and 4430 form intersection points above or below the transfer bogie 4100 according to the concave or convex curvature of the inner surface of the steel structure G.

The first pillar 4410 is connected to the front long hole 4451 of the horizontal bar 4440, and the first bolt 4411 connects the upper end of the first pillar 4410 to the front long hole 4444. The second pillar 4420 is connected to the center of the horizontal bar 4440 by a second bolt 4442, and the horizontal bar 4421 is formed on the top of the second pillar 4420 by the second bolt 4442. (4440). The third pillar 4430 is connected to the rear long hole 4435 of the horizontal bar 4440, and the third bolt 4431 connects the upper end of the third pillar 4430 to the rear long hole 4445.

The curvature adjusting device 4400 corresponds to the inner surface of the steel structure G, for example, a steel pipe having a concave curvature, and includes a front frame 4110, a center frame 4120, and a rear frame of the feed cart 4100. 4130, whereby the first bolt 4411 is moved backward at the front long hole 4451, the third bolt 4431 is moved forward at the rear long hole 4435, and the horizontal bar 4440 is raised. The second bolt 4442 is raised along the vertical long hole 4421 of the second pillar 4420.

Subsequently, when the curvature of the steel structure G corresponds to the curvature of the steel structure G, the front bolt 4110, the center frame 4120, and the rear are firmly tightened by tightening the first bolt 4411, the second bolt 4444, and the third bolt 4431. The curvature of the frame 4130 is fixed. The feed cart 4100 is formed in a state capable of traveling along the inner surface of the steel pipe.

Therefore, the first, second, and third magnetic force devices 4115, 4215, and 4315 mounted on the transport cart 4100 are disposed to approach the inner circumferential surface of the steel structure G, that is, the steel pipe as much as possible, and when the transport cart 4100 proceeds. It can be prevented from adhering to the inner circumferential surface of the steel pipe.

In addition, the steel structure (G), that is, the inner surface of the steel pipe may have a non-uniform curvature, and in this case, the curvature adjusting device 4400 may be applied. To this end, the first, second, and third bolts 4411, 4421, and 4431 need to be able to be moved in the front, vertical, and rear holes 4444, 4421, and 4431 while maintaining the interconnection state. .

At this time, according to the curvature of the steel structure (G), the first bolt (4411) is automatically moved back and forth in the front long hole (4441), the second bolt (4421) is automatically moved up and down in the vertical long hole (4421), the third boat 4431 is automatically moved back and forth in the rear long hole 4431. For smoother operation, the first, second and third bolts 4411, 4421 and 4431 can be replaced with pins and rolls (not shown).

16 is a perspective view of a steel structure surface movement apparatus using a magnetic force according to a fifth embodiment of the present invention. Referring to Fig. 16, the surface shifting device 5 of the fifth embodiment is formed with more joints, i.e., the number of frames, of the transport cart 5100 than the surface shifting device 4 of the fourth embodiment.

In the surface movement apparatus 5 of the fifth embodiment, the feed cart 5100 is provided with front and rear wheels 5117 and 5137 on the front frame 5110 and the rear frame 5130 as the number of frames increases. No magnetic force device is provided.

The magnetic force device is provided in the frames 5120 between the front frame 5110 and the rear frame 5130. For example, the magnetic force device is formed of the first, second, and third magnetic force devices 5125, 5225, and 5325 and is provided on three frames 5120 among the frames of the transport cart 5100, respectively.

The first, second, and third magnetic force devices 5125, 5225, and 5325 are formed in the same structure, and when the handles 5125a, 5225a, and 5325a are formed on one side, the magnetic force is generated to generate magnetic force between the steel structures G. If the attraction force acts on, or if the handle (5125a, 5225a, 5325a) is operated in reverse, the magnetic force is removed to form a state in which the attraction force does not work. The first, second, and third magnetic force devices 5125, 5225, and 5325 may be applied to known magnetic products.

The caster 5127 is supported in contact with the surface of the steel structure G facing between the joint portion of the feed cart 5310 and the frames 5110, 5120, 5130, so that the distance between the joint portion and the surface of the steel structure G is supported. Keep it constant.

The surface shifting device 4 of the fourth embodiment includes a curvature adjusting device 4400, and the surface shifting device 5 of the fifth embodiment includes a longitudinal member 5520 and vertical members 5410.

The longitudinal member 5520 is disposed in the longitudinal direction on the transport cart 5100, and connects the frames 5110, 5120, and 5130, which form the transport cart 5100, into one again. The vertical members 5410 connect the longitudinal members 5520 to the frames 5110, 5120, and 5130, respectively, at positions facing each other.

The vertical members 5410 may pivotally connect the plurality of frames 5110, 5120, and 5130 and the longitudinal members 5520 to effectively deform the curvature of the steel structure G. The vertical member 5410 may be formed as a hydraulic or pneumatic cylinder to adjust the length.

In the surface movement apparatus 5 of the fifth embodiment, the arm 5302 is mounted to the frames 5120 between the pivots 5100 by the pivot 5310a in the feed cart 5100. The surface movement device 5 of the fifth embodiment has an arm pressurizing cylinder 5310, which connects the arm 5302 and the frame 5120 facing each other.

The arm pressurizing cylinder 5310 pushes the arm 5302 toward the frame 5120 to bring the front wheel 5117 into close contact with the surface of the steel structure G. Also, during operation, the arm 5302 is detached from the steel structure G. Prevent it.

The surface movement device 5 of the fifth embodiment further includes a motor pressurizing member 5510 and a motor pressurizing cylinder 5520. The motor pressing member 5510 is disposed in the longitudinal direction on the feed cart 5100, and is connected to the first motor 5140 at one end and adjacent to the frame 5130 on which the first motor 5140 is mounted at the center portion. It is pivotally connected to the frame 5120 and is connected to a motor pressurizing cylinder 522 mounted to the frame 5120 opposite to the first motor 5140 to the other end.

Accordingly, in response to the operation of the motor pressing cylinder 522, the first motor 5140 is pressurized by the lever action of the motor pressing member 5510, and the rear frame 5130 and the rear wheel on which the first motor 5140 is mounted ( Pressing 5137, the rear wheel (5137) is in close contact with the surface of the steel structure (G). The structure in which the first motor 5140 transmits power to the rear wheels 5153 has been described in the previous embodiments and may be applied in the same manner, and thus detailed illustration and description thereof will be omitted.

The stopper 5080 is mounted to the rear arm 5302 of the tool device 5200 to prevent the tool device 5200 mounted on the arm 5302 from being over-adhered to the surface of the steel structure G.

On the other hand, the steel structure surface moving device (1, 2, 3, 4, 5) using the magnetic force of the embodiments of the present invention, for example, the inner surface of the vessel and storage vessel, which forms an irregular surface as well as the inner surface of the steel pipe. And steel structures such as beams forming the outer surface, the truss structure of the bridge.

The steel structure surface moving apparatuses 1, 2, 3, 4, 5 using the magnetic force of the embodiments may perform welding, cutting, blasting, drilling and painting operations of the steel structure as well as descaling the inner surface of the steel pipe.

Permanent magnets 25 and 46 applied to the magnetic force device of the embodiments can be replaced by an electromagnet, in which case a coil 45 for removing the magnetic force is not necessary, and a structure for turning on / off the electromagnet is required. Done.

The wheels 30, 322, 323, 4117, 5117 and casters 380, 4127, 5127 have at least an outer circumferential surface formed of an elastic body (for example, rubber), deformed according to the magnetic force of the magnetic force device, or have a strong frictional force. It can be firmly adhered to the steel structure.

The transport trolleys 10, 210, 310, 4100, and 5100 may correspond along the grain of the target structure, or more than three illustrated in order to effectively respond even when a certain curvature forms a partially irregular curvature. More structures can be formed.

Steel structure surface moving device (1, 2, 3, 4, 5) using the magnetic force of the embodiment further comprises a vision device (not shown) in the transfer cart (10, 210, 310, 4100, 5100), the transfer bogie (10) , 210, 310, 4100, 5100 may also control the progress direction, the work environment is not limited to the ground, it can be applied to underwater work by applying a separate waterproof structure.

17 is a plan view of a steel structure surface movement apparatus using a magnetic force according to a sixth embodiment of the present invention, Figure 18 is a side view of FIG.

The sixth embodiment is characterized by a configuration for driving the feed cart 6100, and portions not described herein may be applied in the configurations of the first to fifth embodiments. Therefore, the description of the parts to which the configurations of the first to fifth embodiments are equally applied will be omitted herein.

In the moving device 6 of the sixth embodiment, the feed cart 6100 includes a plurality of frames 6110, 6120, 6130, for example, a front frame 6110 and a rear frame 6130, and one or more therebetween. It includes a frame 6120 provided as. Since the frames 6110, 6120, and 6130 are connected in a joint structure, the transport cart 6100 may move while corresponding to the curvature of the target steel structure G.

The moving device 6 of the present embodiment applies a caterpillar, without using the wheels used in the first to fifth embodiments, for the movement of the feed cart 6100. Thus, the moving device 6 has a plurality of sprockets 6171, 6127, 6137, for example, first and second sprockets 6117, 6137 and supporting sprockets 6127, cylinders ( 6217) and track member 6317.

The first and second sprockets 6171 and 6127 are mounted to the front frame 6110 and the rear frame 6130, respectively, one of which is driven by a first motor (not shown) to drive the driving force 6100. To provide.

The cylinders 6217 are mounted to each of the frames 6120 between the front frame 6110 and the rear frame 6130 to face the target steel structure (G). The cylinders 6217 may be formed of a hydraulic cylinder or a shock absorber. Support sprockets 6227 are mounted to each of the cylinders 6217 to further face the target steel structure (G).

The track member 6317 forms a closed curve and is directly attached to the target steel structure G by being caught by the first and second sprockets 6117 and 6137 and the support sprocket 6127. That is, the moving device 6 is placed on the target steel structure G through the track member 6317.

According to the driving of one of the first and second sprockets 6171 and 6127, the track member 6317 proceeds while being in close contact with the target steel structure G. At this time, since the cylinder 6217 has an expansion force, the support sprockets 6227 mounted on the cylinder 6217 support the track member 6317 to closely contact the track member 6317 to the target steel structure G. Therefore, the frictional force between the track member 6317 and the target steel structure G is increased, and the moving device 6 proceeds more smoothly.

Since the moving device 6 of the sixth embodiment applies the caterpillar, the wheel and the target steel structure G in the moving devices 1, 2, 3, 4, and 5 of the first to fifth embodiments to which the curvature adjusting device and the wheel are applied. The frictional force between the track member 6317 and the target steel structure (G) is increased more than the frictional force between), thereby enabling smoother movement.

Up to now, the structure of the wheel and the track member is a case of the target steel structure having a wide surface, but in the case of a narrow area of the target steel structure, in the form of a rail may have a structure of a wheel suitable for the rail. For example, the wheel and the track member may be formed in a structure surrounding the top and side of the rail on a straight line (not shown).

19 is a plan view of a steel structure surface movement apparatus using a magnetic force according to a seventh embodiment of the present invention, Figure 20 is a side view of FIG.

19 and 20, the moving device 7 of the seventh embodiment can selectively apply the tool devices 60 disclosed in the first to sixth embodiments. Therefore, the description of the tool devices 60 and the accompanying configuration will be omitted here, and the configuration for smoother movement on the surface of the target steel structure G will be described.

The moving device 7 of the seventh embodiment further improves the endless track of the sixth embodiment, so as to increase the driving friction force between the endless track and the surface of the target steel structure G, and to directly form a magnetic force in the endless track. It is composed.

That is, the moving device 6 of the sixth embodiment includes a track member 6317 and a magnetic force device (not shown), respectively, so as to increase friction between the track member 6317 and the target steel structure G.

In contrast, the moving device 7 of the seventh embodiment combines the configuration corresponding to the track member 6317 of the sixth embodiment with the configuration corresponding to the magnetic force device, thereby increasing the frictional force and facilitating the movement. To illustrate.

For example, the moving device 7 includes the bending members 710, the connecting member 720, the contact control members 730, the drive sprocket 740, and the driven sprocket 750.

FIG. 21 is a perspective view of the coupling member, cross member, drive sprocket, and driven sprocket in FIG. 19; FIG.

When the moving device 7 moves the surface of the target steel structure G, the bending members 710 are in contact with the contact control members 730 and the target steel structure G despite the bending according to the surface state of the target steel structure G. It is configured to absorb the bending to increase the contact area of the).

In addition, the bending members 710 are formed in plural to be connected to other neighboring bending members 710, and the connection line at the outer end of the bending members 710 forms a closed curve.

The bending members 710 are connected in plural in accordance with the length of the moving device 7, and are connected to each other by pins 711. The bending members 710 are smaller in width at both ends set at both ends than the central width W1 set at the center so that the bending members 710 can be bent and bent around the pin 711.

The bending members 710 support and guide the progress of the contact control members 730, and change the traveling directions of the contact control members 730 at the front and rear ends. To this end, the bending members 710 further include front and rear bending members 712 and 713 provided at the front and rear ends so that the connection line at the outer end forms a closed curve.

The front bending member 712 is formed in a fan shape and is connected to the bending member 710 by a pin 711 to switch the direction of movement of the contact control members 730 at the forefront. The rear bending member 713 is formed in a fan shape and is connected to the bending members 710 by a pin 711 to switch the direction of movement of the contact control members 730 at the rear end. Therefore, the front bending member 712 and the rear bending member 713 are formed and arranged in a symmetrical structure with each other.

The connection member 720 connects the bending members 710 connected to the pin 711 in the longitudinal direction to enable mounting of the components for driving the drive sprocket 740. The bending members 710 are bent in various states corresponding to the surface of the target structure (G). Therefore, the connection member 720 is configured to absorb a change in the overall length of the front and rear according to the bending of the bending members 710.

For example, the connection member 720 is connected to at least two bending members 710 of the bending members 710. At this time, one end of the connecting member 720 is supported by the shaft 721 mounted to one side of the bending member 710, the other side is supported by the shaft 722 mounted to the other bending member 710, the shaft support ( 723 is formed as a slot hole.

When the length change between the bending members 710, that is, the distance between both axes 721 and 722, the connecting member 720 is moved by moving the shaft 722 in the slot hole that is the shaft support 723 Absorb change.

FIG. 22 is a rear view of the contact control member in XII of FIG. 20, and FIG. 23 is a longitudinal cross-sectional view of the contact control member in FIG.

The contact control members 730 are disposed along the periphery of the flexure members 710 and are connected to each other with the neighboring contact control members 730 so as to correspond to the curvature of the flexure members 710. It is formed to be intermittent.

For example, the contact regulating members 730 may rotate the housing 731, the permanent magnet 732 embedded in the housing 731, and the lever 733 to control the magnetic force on or off by rotating the permanent magnet 732. It includes.

Referring again to FIG. 20, the moving device 7 of the seventh embodiment further includes an on control member 734 and an off control member 735 for controlling the lever 733. The on control member 734 controls the lever 733 of the contact control member 730 to be turned on immediately before the contact control members 730 are bonded to the surface of the target steel structure G so that the magnetic force of the permanent magnet 732 is turned on. This target steel structure (G) is allowed to act on the surface.

In addition, the off control member 735 is controlled to be turned off by the lever 733 of the contact control member 730 immediately before the contact control members 730 are separated from the surface of the target steel structure (G) of the permanent magnet 732 The magnetic force does not act on the surface of the target steel structure (G).

For convenience, in FIG. 20, the on-control member 734 is provided on the front side bending member 710 to control the lever 733 on, while illustrating the state in which the moving device 7 moves from right to left in the figure. , The off-control member 735 is provided in the rear side bent member 710 to control off the lever 733. The on control member 734 and the off control member 735 operate opposite to each other when the mobile device 7 moves forward and backward.

The on and off control materials 734 and 735 are bent downward to correspond to the lever 733 protruding from the bent member 710 to the outside of the housing 731 of the contact control member 730, and in this state the contact control member When 730 proceeds, a resistance is applied to the lever 733. Accordingly, the lever 733 rotates the permanent magnet 732 connected while being turned by the on and off control materials 734 and 735 to control the magnetic force on or off.

The permanent magnet 732 of the contact control member 730 is turned on to generate a magnetic force, the number of the moving device 7 is firmly attached to the surface of the target steel structure (G).

20 and 22, the bending member 170 (including the front and rear bending members 712 and 713) forms a guide groove 714 on the opposite side of the contact control member 730. Therefore, the contact control member 730 includes a roll 736 mounted in the guide groove 714 and a hanger member 737 connecting the roll 736 to the housing 731.

For example, since the guide groove 714 forms a protruding structure toward the center, and the roll 736 forms a concave structure toward the center, the roll 736 is mounted on the guide groove 714 with a stable structure. Even when located at the lower end or the upper end of the bending member 710, the contact control member 730 may maintain a stable state.

The drive sprocket 740 is coupled to the contact control members 730 to provide a driving force. Accordingly, the drive sprocket 740 is rotatably mounted to the flexure member 710 with the shaft 741. In this case, the shaft 741 of the driving sprocket 740 may be formed integrally with the shaft 721 of the connecting member 720 (not shown), or may be separately formed and connected to the link 741a. In addition, the shaft 741 of the driving sprocket 740 is connected to the drive motor 742 mounted on the connecting member 720 by the belt 743 is transmitted power.

The drive sprocket 740 transmits a driving force to the contact control members 730, and for this purpose, the housing 731 of the contact control member 730 forms a coupling groove 731a that is coupled to the drive sprocket 740. That is, the teeth of the driving sprocket 740 are coupled to the coupling groove 731a to transmit the driving force to the contact control member 730 (see FIGS. 22 and 23). The coupling groove 731a is replaced by a chain (not shown) installed in the housing 731, thereby facilitating manufacture of the housing 731.

The contact control member 730 sets the distance C between the permanent magnet 732 and the target steel structure G through the housing 731 to form a strong magnetic force with the target steel structure G ( 23).

For example, the housing 731 forms a protrusion 731b for guiding and supporting rotation of the permanent magnet 732, and the permanent magnet 732 forms a rotation groove 732a corresponding to the protrusion 731b. That is, the protrusion 731b supports the rotation groove 732a of the permanent magnet 732 to induce rotation of the permanent magnet 732 and prevent the permanent magnet 732 from being attached to the surface of the target steel structure G. By setting the height of the protrusion 731b, a stronger magnetic force can be formed between the permanent magnet 732 and the surface of the target steel structure G.

The driven sprocket 750 guides the movement of the contact control members 730 on the opposite side of the drive sprocket 740. Accordingly, the driven sprocket 750 is rotatably mounted to the bending member 710 with the shaft 751. The shaft 751 of the driven sprocket 750 may be formed integrally with the shaft 722 of the connecting member 720 (not shown), or may be separately formed and connected to the link 752.

When the distance between the shafts 721 and 722 of the connecting member 720 changes, as the connecting member 720 moves the shaft 722 in the slot hole, which is the shaft support 723, to absorb the distance change, Also between the shaft 741 of the driven sprocket 740 and the driven sprocket 750 shaft 751, a configuration capable of responding to a change in distance therebetween is required.

In this case, the distance change within the range of the connecting play of the contact control members 730 may be absorbed by the play of the contact control members 730, but it is necessary to cope with the change of the length beyond the play of the play. To this end, the driven sprocket 750 may be replaced by a disk guide having the teeth removed, thereby generating a slip between the contact control members 730 (not shown).

On the other hand, the movement device 7 of the seventh embodiment, the first bent members 710A and the second bent members 710B disposed on both sides so that the bent members 710 face each other for more stable movement. It may include.

The connection members 720 include a first connection member 720A connected to the first bending members 710A, and a second connection member 720B connected to the second bending members 710B. In addition, the connection member 720 further includes a cross member 720C by connecting one of the first bent members 710A and one of the second bent members 710B facing each other.

The cross member 720C sets the width of the moving device 7. In addition, the cross member 720C is mounted with a tool device (not shown) and a driving device on the first and second bending members 710A and 710B having a flow structure together with the first and second connection members 720A and 720B. To make it possible. That is, the mounting member 720D is further mounted to the cross member 720C.

The contact control members 730 may include the first contact control members 730A provided on the side of the first flexural members 710A and the second contact control members provided on the side of the second flexion members 710B. 730B). The first and second contact control members 730A and 730B more stably adhere the moving device 7 to the surface of the target steel structure G.

The drive sprocket 740 includes a first drive sprocket 740A for providing a driving force to the first contact control member 730A, and a second drive sprocket 740B for providing a driving force to the second contact control member 730B. do.

The first drive sprocket 740A is connected to the first drive motor 742A, and the second drive sprocket 740B is connected to the second drive motor 742B. As the driving motor 742 is provided to the first and second driving motors 742A and 742B, respectively, to control the driving direction and the driving speed, the first contact regulating member 730A and the second contact regulating member 730B It allows for progression in the same direction, in the opposite direction and at different speeds in the same direction. That is, the direction change of the moving device 7 becomes easy.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

Claims (13)

A plurality of bending members formed to be connected to each other so as to absorb the bending according to the surface state of the target steel structure, and the connection line of the outer end forms a closed curve;
A connection member connected to at least two bending members of the bending members to absorb a change in length according to the bending of the bending members;
Contact intermittent members disposed along outer peripheries of the bent members and connected to correspond to the bends of the bent members and formed to control respective magnetic forces;
A drive sprocket coupled to the contact control members to provide a driving force; And
And a driven sprocket for guiding movement of the contact control members on opposite sides of the drive sprocket. The method according to claim 1,
The bending member,
Connected by pins,
Steel structure surface movement device is formed in the width of both ends smaller than the central width so as to be pivoted around the pin. The method of claim 2,
The bending member,
And a front flexure member and a rear flexure member disposed at the foremost and the rearmost portion and formed in a fan shape to switch the direction of movement of the contact control members. The method according to claim 1,
The connecting member includes:
Is supported axially on one of the two bending members,
Steel structure surface moving device which is supported by the other bending member to the shaft and forming the shaft support portion as a slot hole. The method according to claim 1,
At least one of the bending members has an on control member for turning on the magnetic force of the contact control members, the other bending member has an off control member for turning off the magnetic force of the contact control members,
The contact control member,
And a lever for rotating the permanent magnet embedded in the housing to be controlled by the on control member and the off control member. The method according to claim 1,
The bending member forms a guide groove on the opposite side of the contact control member,
The contact control member,
A roll mounted to the guide groove;
And a hanger member connecting the roll to the housing. The method of claim 6,
The housing,
The steel structure surface movement apparatus for setting a gap between the permanent magnet and the surface of the structure object when the permanent magnet generates a magnetic force by the on control member. The method of claim 6,
The housing forms a protrusion for guiding the rotation of the permanent magnet,
The permanent magnet is a steel structure surface movement device for forming a rotary groove corresponding to the protrusion. The method of claim 5,
The housing is a steel structure surface movement device to form a coupling groove coupled with the drive sprocket. The method of claim 5,
The bending member,
Comprising first and second bending members disposed on both sides facing each other,
The connecting member includes:
A cross member is connected to one of the first bending members facing each other and one of the second bending members to each other;
The contact control member,
The steel structure surface moving device including first contact control members provided on the first bending members side and second contact control members provided on the second bending members side. The method of claim 10,
The connecting member,
A first connection member connected to the first bending members
Steel structure surface movement apparatus comprising a second connecting member connected to the second bending members. The method of claim 11, wherein
The drive sprocket,
A first drive sprocket for providing a driving force to the first contact control member;
Steel structure surface movement apparatus comprising a second drive sprocket for providing a driving force to the second contact control member. The method of claim 12,
The first drive sprocket is connected to the first drive motor,
And said second drive sprocket is connected to a second drive motor.

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