KR20160003581A - Automatic traveling carriage apparatus for welding or pre-heating - Google Patents

Abstract

The present invention relates to an auto-traveling carriage device capable of performing a welding or preheating operation in a state of moving on a surface of a structure such as a steel plate and others, when a ship is built in a shipyard. In the auto-traveling carriage device for welding or preheating, a control box, a driving motor connected thereto, a gear box to transmit power of a driving motor to a wheel shaft of the truck wheels, and a distributor body to distribute oxygen and gas to the gas torches mounted on a top surface of a truck plate whereon the truck wheels and magnets are mounted; a main clamp to mount a torch supporter is installed in a top of the distributor body; and torch clamps to mount the gas torches are installed in the torch supporter. The present invention prevents a deviation of a course or fallen damages to the carriage device due to a degradation of magnetic adsorption occurred when the magnets are overheated by installing a cooling passage structure to discharge the oxygen supplied from the oxygen tank after primarily circulating the oxygen around the magnets inside the truck plate and the distributor body. Also, the present invention safely and sensitively adjusts a position of the gas torches mounted on the carriage device with a simple operation of rotating the positions adjustment knobs during operation by installing the position adjustment knobs in the main clamp and the torch clamps, installing a spur gear in a knob shaft of the position adjustment knobs, and forming a rack gear part engaged with the spur gear of the position adjustment knobs on a side surface of the torch supporter.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic traveling carriage apparatus for welding or pre-heating,

The present invention relates to a control apparatus for a vehicle including a control box and a drive motor connected to the upper surface of a bogie plate on which a bogie wheel and a magnet are mounted, a gear box for transmitting the power of the drive motor to the wheel axle of the bogie wheel, A main clamp for mounting the torch support is installed on the upper end side of the distributor body and a torch clamp for mounting the gas torch is installed on the torch support stand so that during the ship drying operation at the shipyard, Or other structure while moving along the surface of the carriage.

[0002] Generally, ships and other marine plants are manufactured by welding various metal plates or steel sheets on the basis of a ship's thick plate, and then unit structures constituting a part of the entire structure are firstly manufactured, And the unit structures are re-welded together to complete a large structure.

Particularly, when the ship is to be dried, vertical barriers are welded to a metal bottom plate or the like, welded to the vertical barriers, and various steel members are welded to the vertical barriers to form a unit block, A carriage apparatus is widely used in which a gas torch can be moved along a corner line in a vertical or horizontal direction while a welding operation or a preheating operation prior to the welding operation can be automatically performed.

Such a carriage apparatus is an apparatus for automatically performing edge welding or butt welding while moving along a welding line using a moving rail or a truck wheel. Since such a carriage apparatus is provided with a torch clamp, a welding gas It is possible to perform a desired operation by mounting a torch or a gas torch for preliminary heating as well as to provide a relatively precise welding or preheating operation of the undersized portion or the corner portion after the work is difficult.

As shown in FIGS. 1 and 2, the carriage device of the automatic driving type using the carriage wheel of the above carriage device includes a carriage wheel 1 on the front side and a carriage wheel 1 on the rear side of the carriage 1, The wheel shaft 2a of the truck wheel 2 is supported by a wheel bracket 2b fixed to the edge of the carriage plate 1 and the upper surface of the carriage plate 1 The magnet 1a, the distributor main body 7, the control box 3, the drive motor 4 and the gear box 5 are respectively installed.

And the carriage device 10 can be driven by the magnet 1a while being attached to an iron plate or the like. The controller 3 is a means for controlling the operation of the drive motor 4 and includes a remote controller and / And a remote control type control box with a built-in battery may be provided in some cases. In addition, the remote control type control box may be provided with an operation means such as a lever switch 3b and a speed adjustment knob 3c, The drive motor 4 is a geared motor having a normal speed reducer 4a.

The gear box 5 is mounted on the output portion of the speed reducer 4a while the wheel shaft 2a of the front side braking wheel 2 passes through the gear box 5, The gear transmission mechanism includes a worm gear fixed to the output shaft of the speed reducer 4a and a worm gear fixed to the wheel shaft 2 of the wagon wheel 2 2a, but other types of gear transmission mechanisms such as bevel gears, screw gears, and angle gears may also be applied.

The dispenser main body 7 has a function of supplying oxygen and gas to the gas torch 12 mounted on the carriage device 10 and a function of supporting the control box 3 and the driving motor 4 and the gas torch 12 Two gas torches 12 are used in the figure so that two hose connectors 7b are provided on the left and right sides of the distributor body 7 respectively and each of the hose connectors 7b The hose connector 7b for the gas torch 12 is connected to the hose connector 12b by a gas hose not shown and a flow rate adjusting knob 7a is provided in the hose connector 7b for the distributor body 7. [

2, a hose connector 7b for connecting the oxygen tank with the oxygen supply hose extending from the gas tank and the gas supply hose is provided on the front surface of the distributor main body 7 corresponding to the lower side of the transportation handle 6, And a distribution passage for distributing the oxygen gas and gas supplied from the oxygen tank and the gas tank to the respective gas torches 12 is provided inside the distributor main body 7, Shaped pipe for connecting the gear box 5 and the distributor main body 7 and a main clamp 8 is provided at an upper end of the distributor main body 7. [

A torch support 9 having a predetermined length is horizontally connected to the main clamp 8 and a torch clamp 11 for mounting the torch 12 is connected to the torch support 9, While the main clamp 8 and the torch clamp 11 have a "⊂" -shaped clamping structure for engaging the torch support 9 while the torch clamp 11 has a clamping structure for mounting the gas torch 12 A clamping structure of a U-shape is further provided, and the main clamp 8 and the torch clamp 11 are provided with tightening bolts 8a and 11a for clamping.

When a welding or preheating operation is carried out while driving the conventional carriage device 10 having the above-described configuration, a flame sprayed from the lower-end injection tip 12a of the gas torch 12 hits the surface of an iron plate or the like It often occurs that the ink is introduced into the inside of the carriage 1. This causes the electric or electronic components or the driving motor 4 built in the control box 3 to be damaged by overheating, There is a problem that malfunction or failure frequently occurs in the battery 10.

In order to solve the above problems, in the carbon dioxide arc welding machine, the flow path of the carbon dioxide gas supplied to the welding torch is set to go through the control box of the carriage device, so that the electric and electronic parts built in the control box are cooled A cooling device for a carriage for welding is disclosed in Korean Patent Application No. 10-2009-0097080 filed and publicly known.

In the conventional carriage device as described above, the carbon dioxide gas supplied to the welding torch passes through the control box to enable cooling of the electric / electronic parts. However, since the flame injected from the injection tip 12a of the gas torch 12 There is a problem that it is difficult to prevent overheat of the magnet 1a due to inflow into the inside of the bogie plate 1 and to thereby reduce the attraction force of the attracting magnetic force and breakage of the path or fall of the carriage device 10. [

More specifically, as the flame injected from the injection tip 12a of the gas torch 12 flows into the inside of the bogie plate 1, the magnet 1a installed on the bogie plate 1 is heated to a predetermined temperature or higher There is a situation where the attraction force inherent to the magnet 1a is greatly lowered so that the carriage device 10 can not be firmly attached to the surface of the structure and thus the carriage device 10 There is a problem that the carriage device 10 which has been mounted on the wall or the ceiling often falls down from the wall or ceiling to the floor.

If the carriage device 10 which has been preheated or welded in the state of hanging from the wall or ceiling as described above is dropped to the floor due to a drop in attracted magnetic force, it is not compared with the damage caused by overheating of the control box 3 There is a problem that the carriage device 10 collides with a worker so as to cause a danger of human injury. In order to prevent this, it is necessary to prevent the carriage device 10 from dropping off, There is a problem in that a separate guide structure capable of moving the steel plate 10 is installed and then a high cost and low efficiency additional measures such as demolishing the structure after the welding or preheating operation is completed have been required.

In addition, in the conventional carriage device 10, the position of the gas torch 12 is adjusted by unscrewing the fastening bolt 8a of the main clamp 8 so that the torch support 9 itself is moved leftward and rightward Or the torch clamp 11 is moved along the torch support 9 after the tightening bolt 11a of the torch clamp 11 is released and the gas torch 12 is moved to the required position The respective tightening bolts 8a and 11a are tightened again.

However, when the position of the gas torch 12 is adjusted in such a manner as described above, the troublesome operation of unfastening the tightening bolts 8a and 11a and tightening the bolts 8a and 11a must be performed, 9 or the torch clamp 11 with the hand to move the position of the gas torch 12 in the left and right directions only depending on the sense of the operator so that the position adjustment operation of the gas torch 12 is performed accurately and delicately There is a problem that it is difficult to do.

Particularly, a situation may arise in which the position of the gas torch 12 must be adjusted in the middle of the welding or preheating operation. However, in the state where the flame is sprayed from the gas torch 12, the tightening bolt 11a is loosened and then the torch clamp 11 The operation of moving the gas torch 12 by hand is very anxious and dangerous. As a result, after the supply of the fuel (oxygen + gas) to the gas torch 12 is stopped for safety of the operator, There is a problem that the work efficiency is lowered and the energy is wasted due to temporary interruption of welding or preheating work.

In the conventional automatic traveling carriage device 10, only the wheel shafts 2a of the front-side truck 2 passing through the gear box 5 are driven by the power of the drive motor 4, And the rear side bogie wheel 2 is not rotated by the driving motor 4 but is rotated by being driven by the front side bogie wheel 2 so that the welding bead There is a problem in that the carriage device 10 is stopped due to failure of the rear side truck 2 to move smoothly, thereby causing a trouble in a quick and smooth welding or preheating operation .

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above problems, and it is an object of the present invention to provide a cooling passage for allowing oxygen supplied from an oxygen tank to be circulated along the periphery of a magnet, It is possible to prevent the drop of the carriage device or the fall of the carriage device due to the lowering of the attracting magnetic force due to the overheat of the magnet and to provide a position adjusting knob in the main clamp and the torch clamp, A spur gear is provided on a knob axis of the position adjusting knob and a rack gear portion is formed on a side portion of the torch support to engage with a spur gear of the position adjusting knob, The position of the gas torch can be easily, safely and finely adjusted during operation. And that in the first aspect.

In addition, according to the present invention, it is possible to drive four wheels by all bogie wheels by using only one driving motor installed on the bogie plate by connecting a wheel shaft of the front side bogie wheel and a wheel shaft of the rear side bogie wheel by a transmission chain, Even if there is a nonuniform surface such as a weld bead on the running path of the carriage device, the carriage device can be easily welded to the surface of the carriage device while easily crossing the surface of the carriage device. And a second technical task is to make the operation and the preheating operation be performed more quickly and smoothly.

Lastly, according to the present invention, since the shield plate of the flame emitted from the gas torch is assembled to the side portion of the bogie plate, the overheat prevention function of the magnet by the cooling passage structure is further improved, The present invention can minimize overheating damage of the electric and electronic parts including the motor and malfunction or malfunction of the carriage device. In addition, the height of the flame blocking plate can be adjusted, The third technical problem is that the flame blocking performance can be maximized even if the carriage device is not hindered by installing curtains in a curtain manner.

The present invention as a means for solving the above-mentioned problems is characterized in that a bogie wheel is connected to a front side and a rear side of a bogie plate, a magnet, a distributor body, a control box, And a gear transmission mechanism for rotating the wheel axle by the power of the drive motor is incorporated in the gear box, and the gearbox body is provided with an oxygen supply At least four hose connectors for connecting the hose to the gas supply hose are provided, a main clamp is installed at the upper end of the distributor body, and a torch support having a predetermined length is horizontally disposed in the main clamp And a torch clamp for mounting a gas torch is connected and connected to the torch support, And the torch clamp has a "⊂" -shaped clamping structure that engages the torch support, while the torch clamp is additionally provided with a clamping structure for mounting the gas torch, wherein the main clamp and the torch clamp have a clamping force A carriage device for a traveling or preheating operation in which a tightening bolt is installed, wherein an oxygen circulation passage is formed inside the baffle plate so as to surround the periphery of the magnet, An oxygen inlet for communicating the hose connector of the oxygen supply hose extending from the oxygen tank with the inlet hole of the baffle plate is formed in the distributor body, And a hose connector of an oxygen supply hose extending from the dispenser main body to the gas torch. And the oxygen circulation passage penetrates and crosses the linear passage through drilling processing in the width direction and the longitudinal direction of the bogie plate, and passes through the edge of the bogie plate And the end portions of the respective passages exposed through the through holes are welded and sealed so as to form a closed circuit type passageway structure in the inside of the bogie plate.

In addition, a rack gear is formed on a side surface of the torch support, and a knob axis of the position adjusting knob is vertically penetrated through the main clamp and the torch clamp. The knob axis of the position adjusting knob And a spur gear engaged with a rack gear portion of the torch support is fixedly installed. An auxiliary support having a predetermined length is horizontally connected and connected to the main clamp, and a main clamp And a rack gear portion for engaging with the spur gear of the positioning knob for use is formed in the longitudinal direction of the auxiliary support, and one or both ends of the auxiliary support have the same structure as the main clamp, A connecting clamp for crossing at an angle is provided, Wherein the spur gear of the torch support is installed so as to be engaged with the rack gear portion of the torch support, and a buffer spring is installed on the fastening bolt of the main clamp, the torch clamp and the connection clamp, Wherein the wheel shafts and the bogie plates are provided with electric sprockets on which the electric chains are wound, wherein each of the bogie wheels has a densely spaced interval Wherein a mounting base is provided on one side or both sides of the bogie plate and extends to the outside of the bogie wheel, and the mounting base is provided with a hole for blocking a flame injected from a gas torch Characterized in that the flame blocking plate is assembled and installed, and the flame blocking plate is positionally adjusted along the height direction of the mounting table And possibly installed, the side of the lower end of the flame shield plate being connected carriage fire protection installation.

According to the present invention, it is possible to provide a cooling passage structure in which oxygen supplied from an oxygen tank is primarily circulated along the periphery of a magnet and then discharged to a gas torch in the inside of a baffle plate and a dispenser main body, It is possible to effectively prevent the magnet from overheating and the attraction force from being lowered due to the flow of the flame injected into the inside of the baffle plate, It is possible to prevent a situation in which the carriage device performing the operation falls from the wall or the ceiling to the floor in advance.

Therefore, it is possible to remarkably reduce the risk of serious breakage due to the collision of the carriage device with the collision of the carriage device, or the danger of a human accident that may occur when the falling carriage device collides with the operator, A separate guide structure capable of moving the apparatus can be installed, and the high-cost and low-efficiency additional measures of removing the structure again after the welding or preheating operation is completed can be eliminated.

In addition, it is possible to easily and precisely adjust the position of the gas torch mounted on the carriage device by a simple operation of rotating the position adjusting knob, while the position adjusting knob So that the position of the gas torch can be adjusted more safely, thereby providing an effect of preventing unnecessary interruption of the welding or preheating operation, thereby reducing the working efficiency and waste of energy.

Further, by the power transmission structure between the wheel shafts using the electric chain, it is possible to perform four-wheel drive by all bogie wheels even with only one drive motor installed on the bogie plate, and a gear- The present invention has the effect of increasing the running performance of the carriage device by installing the densely formed metal wheels on the carriage device so that even if there is a nonuniform surface such as a weld bead on the running path of the carriage device, So that the welding operation or the preheating operation can be carried out more quickly and smoothly.

On the other hand, by applying the flame blocking plate to the side surface of the bogie plate, the function of preventing overheat of the magnet by the cooling passage structure is further improved, and the overheating of the electric and electronic parts including the control box and the drive motor It is possible to minimize the malfunction or malfunction of the carriage device due to the damage, and by installing the fireproof cloth in a curtain-like manner at the lower end portion of the flame blocking plate while adjusting the height of the flame blocking plate, The flame blocking performance can be further maximized without causing any trouble.

1 is a rear perspective view of a conventional automatic traveling carriage device.
Fig. 2 is a plan sectional view of Fig. 1; Fig.
FIG. 3 is a partially exploded rear perspective view of an automatic traveling carriage apparatus according to an embodiment of the present invention. FIG.
Fig. 4 is an exploded perspective view of the main part of Fig. 3 showing the magnet cooling structure. Fig.
Figure 5 is a rear view of the combined state of Figure 3;
6 is a plan sectional view of Fig.
7 is a partially exploded rear perspective view of an automatic traveling carriage apparatus according to another embodiment of the present invention.
Figure 8 is a rear view of the combined state of Figure 7;
9 is an exploded perspective view showing another embodiment of the flame blocking plate.

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

3 to 6, the automatic traveling carriage device 10 according to the present invention also includes a carriage 1 on which a carriage 2 is mounted on the front side and a rear side as in the conventional case, A distributor main body 7, a control box 3, a drive motor 4 and a gear box 5 are provided on the upper surface of the main body 1 as a basic base.

In addition, as the mounting structure of the gas torch 12 based on the main clamp 8 provided at the upper end of the distributor body 7, a torch support 9 having a predetermined length is attached to the main clamp 8 And a torch clamp 11 for mounting the gas torch 12 is connected to the torch support 9 in the same manner as in the conventional case.

As described above, the details of the technical construction of the base of the carriage device 10 of the self-driving type are considered to be in line with those mentioned in the background art. In the following description, The magnet 1a may be assembled with the bogie plate 1 in a state of being protruded from the upper surface of the bogie plate 1 or may be assembled with the bogie plate 1 by using a separate cover or the like, It may be installed in an embedded manner.

As shown in FIG. 4, the oxygen circulation passage 24 surrounding the magnet 1a is formed in the inside of the bogie 1, An inlet hole 25a and an outlet hole 26a communicating with the oxygen circulation passage 24 are formed on the upper surface of the bogie plate 1 to which the distributor main body 7 is connected, An oxygen inflow passage 25 for communicating the hose connector 7b of the oxygen supply hose extending from the oxygen tank with the inflow hole 25a of the baffle plate 1 and a gas torch And an oxygen discharge passage 26 for communicating the hose connector 7b of the oxygen supply hose extending to the discharge port 26a of the bogie plate 1 to the discharge port 26a of the bogie plate 1,

In the figure, four magnets 1a are provided on the upper surface of the carriage plate 1 so that the oxygen circulation passage 24 surrounds the magnets 1a, It is found that the oxygen circulation passage 24 can have various shapes depending on the number of the magnets 1a to be installed and the arrangement of the magnets 1a and the inflow hole 25a and the discharge hole 26a are made of oxygen An oxygen inflow passage 25 and an oxygen discharge passage 26 having a short length are additionally formed in the inside of the bogie plate 1 so as to be able to communicate with the circulation passage 24, And the position of the inlet hole 25a and the outlet hole 26a can be changed.

The oxygen inflow passage 25 of the distributor body 7 is communicated with the hose connector 7b provided on the lower side of the front side of the distributor body 7 and is connected to the oxygen discharge passage 26 are connected to the hose connectors 7b provided on the left and right sides of the distributor main body 7 via the oxygen distribution passage 27. The hose connectors 7b provided on the lower side of the front side of the distributor body 7 Is connected to the oxygen tank by the oxygen supply hose and the hose connector 7b provided on the left and right sides of the distributor body 7 is connected to the gas torch 12 by another oxygen supply hose, The oxygen inflow passage 25 and the oxygen discharge passage 26 extend vertically downward to the bottom surface of the distributor body 7 along the distributor body 7. [

The distributor main body 7 is integrally welded and fixed to the upper surface of the bogie 1 and the inflow hole 25a and the discharge hole 26a provided on the upper surface of the bogie plate 1 are fixed to the distributor main body 7 The oxygen supplied from the oxygen tank is firstly circulated along the periphery of the magnet 1a and then the oxygen gas is supplied to the gas torch (not shown) through the oxygen inlet passage 25 and the oxygen discharge passage 26, 12 provided on the right and left sides of the distributor main body 7 are provided continuously along the inside of the main body 1 and the distributor main body 7, A hose connector 7b to which a hose is connected, in which a gas distribution passage 28 is provided.

As a method of forming the oxygen circulation passage 24 in the inside of the bogie 1 as described above, the bogie plate 1 is divided into upper and lower parts, and then a channel groove is formed on the mounting surface of the bogie plate 1 Or a method of inserting the pipe into the groove of the passage may be applied. However, such a method may cause disadvantages such as leakage of oxygen or deterioration of the cooling effect, so that drilling processing And the end sides of the respective passages exposed to the outside through the edge of the bogie plate 1 are welded and sealed so that a closed circuit passage structure is formed inside the bogie plate 1 Method is most preferable.

As the constituent elements of the second essential part of the present invention, a rack gear part 9a is formed on the side surface of the torch support 9 in the longitudinal direction of the torch support 9, and the main clamp 8 and the torch- The knob shaft 13b of the position adjusting knob 13 is vertically penetrated through the rack gear portion 9a of the torch support 9 on the knob axis 13b of the position adjusting knob 13, And a spur gear 13a engaged with the spur gear 13a.

The main clamp 8 and the torch clamp 11 have a "⊂" -shaped clamping structure for engaging with the torch support 9, and the knob axis 13b is the main The spur gear 13a serves as a rotation supporting shaft which penetrates the clamp 8 and the torch clamp 11 in the vertical direction and supports the rotation of the position adjusting knob 13. The spur gear 13a is connected to the main clamp 8 and the torch clamp 11 Engages with the rack gear portion 9a of the torch support 9 while being fixed to the knob shaft 13b at the inside of the opened inlet of the torch support 9. [

When the above structure is applied, the position adjusting knob 13 of the main clamp 8 is rotated together with the spur gear 13a so that the torch support 9 provided with the rack gear portion 9a is rotated Or the position adjusting knob 13 of the torch clamp 11 is rotated together with the spur gear 13a so as to move the torch clamp 11 with the gas torch 12 to the torch support 9 and / The position of the gas torch 12 can be adjusted by moving the rack gear portion 9a in the left and right directions in the drawing.

The tightening bolt 11a used for clamping with the torch support 9 of the tightening bolt 11a provided on the torch clamp 11 and the tightening bolt 11a used for clamping the torch support 9 with the main clamp 8 The clamping bolt 8a provided in the clamping bolt 8 is not intended to securely fasten the clamp to the torch support 9 in a fixed manner but may be a sliding type clamp between the clamp and the torch support 9 by rotation of the position adjusting knob 13. [ To allow each clamp to be connected to the torch support 9 at a level that allows movement.

In other words, if the main clamp 8 and the torch clamp 11 are fixedly and firmly fixed to the torch support 9, the operation of rotating the position adjustment knob 13 to adjust the position of the gas torch 12 When the main clamp 8 and the torch clamp 11 are connected to the torch support 9 in a state in which the torch clamp 11 is too loose, a small external force or shock such as the pressure of the flame injected from the gas torch 12 The torch support 9 or the torch clamp 11 swings and the position of the gas torch 12 deviates from the set position.

Therefore, even when the main clamp 8 and the torch clamp 11 are engaged with the torch support 9, the position adjustment operation of the gas torch 12 can be carried out smoothly, A suitable level of frictional resistance is provided so that the set position of the torch 12 is not easily changed. To this end, a buffer spring (not shown) is attached to the tightening bolts 8a, 11a of the main clamp 8 and the torch clamp 11 8b and 11b.

The buffer springs 8b and 11b are fastened to the fastening bolts 8a and 11b in the operation of clamping the main clamp 8 and the torch clamp 11 with the torch support 9 using the fastening bolts 8a and 11a 11a of the fastening bolts 8a, 11a are not excessively tightened, and the positions thereof are set such that the head portion of the fastening bolts 8a, 11a and the upper surface of the clamps 8, The buffer springs 8b and 11b are inserted into the space between the openings of the clamps 8 and 11 via the buffer springs 8b and 11b to the bolts of the tightening bolts 8a and 11a The method is also possible.

As a further matter, even if the main clamp 8 and the torch clamp 11 are tightened to the maximum by using the tightening bolts 8a and 11a, the rack gear portion 9a of the torch support 9 and the position adjusting knob It is desirable to design the spur gear 13a of the torch clamp 13 so that it does not come into contact with the inner clamping surface of each clamp 8 and 11, It is preferable that the "U" -shaped clamping portion provided in the gas torch 12 can be fixed to the gas torch 12 as firmly as possible by using the tightening bolts 11a. And a butterfly bolt is applied as the bolt 11a.

As a constituent element corresponding to the third essential part of the present invention, the wheel shafts 2a of the front side truck 2 and the rear wheels 2 of the rear side truck 2 are provided on one side (left side in the figure) Wherein an electric chain (14) for connecting the wheel shafts (2a) is provided and each of the wheel shafts (2a) and the bogie plate (1) is provided with an electric sprocket (15) A sprocket support 15a for supporting the sprocket 15 and a chain cover 16 for protecting the transmission chain 14 are additionally provided on the upper surface of the plate 1. [

When the wheel axle 2a of the front side truck 2 and the wheel axle 2a of the rear side truck 2 are connected by the transmission chain 14 as described above, The rotational force of the front wheel axle 2a that receives the power of the driving motor 4 is transmitted to the rear wheel axle 2a via the electric chain 14 so that only one driving wheel 4 2) can be rotated.

Further, each of the truck wheels 2 is made of a metal material wheel so as to be compatible with the side surface for improving the running performance of the carriage device 10 by applying the electric chain 14, Shaped notch is formed at a closely spaced distance along the outer circumferential surface of the truck wheel 2 in order to provide a flame resistant truck 2.

As a constituent element corresponding to the fourth essential part of the present invention, a mounting base 17a extending to the outside of the vehicle wheel 2 is provided on one side or both sides of the above-mentioned bogie plate 1, The flame blocking plate 17 is mounted in a manner to prevent the flame injected from the lower end injection tip 12a of the gas torch 12 from colliding with the steel plate or the like and flowing into the inside of the plate 1. [

It is preferable to use a thin heat resistant metal plate such as a stainless steel plate as the flame blocking plate 17 and to prevent the carriage device 10 from running, It is sufficient that the lower end side is located at a position slightly higher than the running surface of the carriage device 10 and the dimensions thereof can cover the front and rear side truck wheels 2.

The flame blocking plate 17 may be mounted on the mounting table 17a in a variety of ways such as a fitting type or a bolt type. The flame blocking plate 17 may be provided on the front and rear sides of the bogie plate 1 corresponding to the left and right sides of the bogie plate 1 as well as between the bogie wheels 2 Of course.

The guide bar 17b connected to the rear end side of the flame blocking plate 17 as shown in the drawing has a point for precisely setting the carriage device 10 at its starting point prior to the preheating or welding operation using the carriage device 10, And the starting point of the carriage device 10 is a point previously marked on the surface of an iron plate or other structure on which a welding or preheating operation is performed.

7 and 8 illustrate an automatic traveling carriage apparatus 10 according to another embodiment of the present invention in which a secondary support 18 having a predetermined length is horizontally traversed in the main clamp 8 And a rack gear portion 18a engaged with the spur gear 13a of the position adjusting knob 13 for the main clamp 8 is provided on the side of the auxiliary support 18 in the longitudinal direction of the auxiliary support 18 Respectively.

The right end of the auxiliary support 18 has the same structure as that of the main clamp 8 and a connection clamp 18 for crossing the torch support 9 with the auxiliary support 18 at a 90- The spur gear 13a of the position adjusting knob 13 for the connection clamp 19 is provided so as to be engaged with the rack gear portion 9a of the torch support 9, Is the same as that of the prior art and one embodiment.

Therefore, the auxiliary support 18 is moved in the left and right directions by the position adjusting knob 13 of the main clamp 8 while the position adjusting knob 13 of the connecting clamp 19 is moved to the front The position of the gas torch 12 is adjusted in such a manner that the gas torch 12 is moved in the backward direction and a connection clamp 19 is additionally provided in the other side end (the left end in the drawing) of the auxiliary support 18 when necessary , Another torch support 9 on which the two gas torches 12 are mounted may be provided on the connection clamp 19.

As described above, the carriage device 10 according to another embodiment of the present invention is configured such that the two gas torches 12 are disposed on the side surface of the carriage plate 1 so that the carriage device 10 And the auxiliary support 18 provided with the connection clamp 19 is designed to perform a welding or preheating operation for the gas in correspondence with the type of the welding or preheating operation, It is an additional means for further adjusting the position and arrangement of the torch 12. [

9 shows another application example of the flame shield plate 17. In the flame shield plate 17, a pair of height adjustment holes 21 having a shape of a long hole are cut perpendicularly to the flame shield plate 17, The support plate 22 is provided at the position corresponding to each of the height adjustment holes 21 on the support plate 17a while a plurality of support plates Is formed along the height direction, and a fireproof cloth 20 is connected to the lower end of the flame shield plate 17.

The position where the flame blocking plate 17 is assembled to the support plate 22 of the mounting table 17a can be adjusted in the upward and downward directions by using the assembly bolt 23 and the assembly nut 23a, It is possible to prevent the lower end portion of the flame blocking plate 17 from being caught by the protruding surface of the welding bead or the like existing on the running path of the carriage device 10 and to prevent the flame blocking plate 17 It is possible to curtain the penetration interval of the flames (the interval at which the flame shield plate is spaced apart from the surface of the steel plate or the like)

The fireproof cloth 20 is fabricated from nonflammable fibers or coated with a fire retardant agent so that the fireproof fabric 20 can be easily removed from the surface of the iron plate or other structures when the carriage device 10 is traveling. However, due to the peculiar flexibility of the cloth material, the protruding surface of the welding bead or the like existing on the surface of the cloth material can be easily ridden on the fireproof cloth 20, and due to the application of the fireproof cloth 20, It is possible to block the infiltration of the flame up to the portion that can not be covered by the flame shield plate 17 without causing any trouble to the running of the flame shield 10.

9, the fireproof cloth 20 is installed in a curtain-like manner on the lower end of the flame shield plate 17 by using a fixing piece 20a or the like. The fireproof cloth 20 having a thickness of less than 1 mm, It is preferable to connect the flame blocking plate 17 to the lower end of the flame shield plate 17 in the form of a double membrane folded once and the flame retardant foam 20 having a thickness of 1 mm or more It is preferable to connect it to the lower end of the flame blocking plate 17 in the form of a single membrane.

According to the automatic traveling carriage device 10 of the present invention as described above, oxygen supplied from the oxygen tank is primarily circulated along the periphery of the magnet 1a within the bogie plate 1 and the distributor body 7 A cooling passage structure for discharging the gas to the next gas torch 12 is provided so that the flame injected from the injection tip 12a of the gas torch 12 flows into the inside of the plate 1, It is possible to prevent the carriage device 10 from easily separating from the path required by the carriage device 10 and to prevent the carriage device 10 from being mounted on the wall or ceiling from the wall or the ceiling It is possible to prevent the situation of falling to the floor in advance.

This makes it possible to remarkably reduce the risk of serious breakage due to the collision of the carriage device 10 with the collision of the carriage device 10 and the risk of human casualties caused by the collision of the carriage device 10 with the operator, A separate guide structure for moving the carriage device 10 can be installed while preventing the dropout, and then a high-cost, low-efficiency additional measure of removing the structure again after the welding or preheating operation is completed can be eliminated.

In addition, the position of the gas torch 12 mounted on the carriage device 10 can be easily, delicately and accurately adjusted only by a simple operation of rotating the position adjustment knob 13, while the welding or preheating operation is being performed The position of the gas torch 12 can be more safely adjusted by using the position adjusting knob 13, so that it is possible to prevent unnecessary interruption of welding or preheating work, thereby reducing work efficiency and waste of energy .

Further, by means of the power transmission structure between the wheel shafts 2a using the electric chain 14, it is possible to perform four-wheel drive by all of the truck wheels 2 with only one drive motor 4 installed on the truck 1 And a metal wheel in which a gear type notch is formed densely along the outer periphery is installed on the carriage wheel 2 so as to increase the running performance of the carriage device 10. As a result, Even if there is a non-uniform surface such as a weld bead, the carriage device 10 can easily perform the welding operation or the preheating operation more quickly and smoothly while easily crossing the surface.

On the other hand, by applying the flame blocking plate 17 to the side surface of the bogie plate 1, the function of preventing the overheat of the magnet 1a by the cooling passage structure is further improved, It is possible to minimize the overheat damage of the parts including the driving motor 4 and the driving motor 4 and the malfunction or malfunction of the carriage device 10 due to the overheating of the flame blocking plate 17 and the flame blocking plate 17 17, the fire fighting can 20 is hung in a curtain manner, so that the flame blocking performance can be maximized without causing any trouble to the running of the carriage device 10. [

1: Baffle plate 1a: Magnet 2: Baffle wheel
2a: wheel shaft 2b: wheel bracket 3: control box
3a: Connection port 3b: Lever switch 3c: Speed control knob
4: drive motor 4a: speed reducer 5: gear box
6: Transport handle 7: Distributor body 7a: Flow adjustment knob
7b, 12b: Hose connector 8: Main clamp 8a, 11a, 19a: Tightening bolt
8b, 11b, 19b: buffer spring 9: torch support 9a, 18a:
10: carriage device 11: torch clamp 12: gas torch
12a: injection tip 13: positioning knob 13a: spur gear
13b: Knob shaft 14: Electric chain 15: Electric sprocket
15a: sprocket support 16: chain cover 16a: shaft insertion groove
17: flame blocking plate 17a: mounting base 17b: guide bar
18: auxiliary support 19: connection clamp 20:
20a: Fixing piece 21: Height adjusting ball 22:
22a: Assembly hole 23: Assembly bolt 23a: Assembly nut
24: oxygen circulation passage 25: oxygen inflow passage 25a: inflow hole
26: oxygen discharge passage 26a: discharge hole 27: oxygen distribution passage
28: gas distribution passage

Claims (8)

A control box 3 and a control box 3 are mounted on the upper surface of the bogie plate 1 and connected to the front and rear sides of the bogie plate 1, A wheel shaft 2a of the front wheel barrel 2 or the rear wheel barrel 2 is provided so as to pass through the gear box 5 and the gear box 5 is provided with a motor 4 and a gear box 5, A gear transmission mechanism for rotating the wheel shaft 2a is incorporated by the power of the drive motor 4 and at least four hose connectors 7b for connecting the oxygen supply hose and the gas supply hose are provided in the distributor body 7. [ A main clamp 8 is provided at an upper end of the distributor main body 7. A torch support 9 having a predetermined length is horizontally connected to the main clamp 8, A torch clamp 11 for attaching the gas torch 12 is connected to the torch support 9 and the main clamp 8, The clamp clamp 11 has a "⊂" shaped clamping structure for engaging the torch support 9 while the torch clamp 11 is additionally provided with a clamping structure for mounting the gas torch 12, In the automatic traveling carriage apparatus 10 for welding or preheating work in which the clamp 8 and the torch clamp 11 are provided with tightening bolts 8a and 11a for adjusting the clamping force,
An oxygen circulation passage 24 is formed in the inside of the bogie plate 1 in a manner of surrounding the periphery of the magnet 1a and a bogie or lattice type oxygen circulation passage 24 is formed in the bogie- An inlet hole 25a and an outlet hole 26a communicating with the oxygen circulation passage 24 are formed on the upper surface, respectively,
An oxygen inflow passage 25 for communicating the hose connector 7b of the oxygen supply hose extending from the oxygen tank with the inflow hole 25a of the plate 1 is provided in the distributor main body 7, An oxygen discharge passage 26 for communicating the hose connector 7b of the oxygen supply hose extending from the discharge port 7 to the gas torch 12 with the discharge hole 26a of the plate 1 is formed,
The oxygen circulation passage 24 penetrates and crosses the linear passage by drilling work in the width direction and the longitudinal direction of the bogie plate 1 and is provided at the end of each passage exposed to the outside through the edge of the bogie plate 1 Wherein the hermetically sealed passage is formed in the inside of the bogie plate (1) by weld-sealing the hermetically sealed side of the carriage (1). The torch support (9) according to claim 1, wherein a rack gear portion (9a) is formed in the side surface of the torch support (9) in the longitudinal direction of the torch support (9), and the main clamp A knob axis 13b of the knob 13 is vertically penetrated,
Characterized in that a knob shaft (13b) of the position adjusting knob (13) is fixedly provided with a spur gear (13a) for engaging with a rack gear portion (9a) of a torch support (9) Device. The main clamp (8) according to claim 2, wherein an auxiliary support (18) having a predetermined length is horizontally transversely connected to the main clamp (8) A rack gear portion 18a engaged with the spur gear 13a of the knob 13 is formed in the longitudinal direction of the auxiliary support 18,
One or both ends of the auxiliary support 18 have the same structure as the main clamp 8 and a connection clamp 19 for crossing the torch support 9 with the auxiliary support 18 at 90 degrees And the spur gear 13a of the position adjusting knob 13 for the connection clamp 19 is installed so as to be engaged with the rack gear portion 9a of the torch support 9. [ Carriage device. The welding apparatus according to any one of claims 1 to 3, wherein the main clamp (8), the torch clamp (11) or the main clamp (8), the torch clamp (11), and the tightening bolt (8a) (18b), (11b), (19b) are provided on the first and second guide plates (11a) and (19a). 4. The braking system according to any one of claims 1 to 3, wherein the bogie plate (1) is provided with an electric motor for connecting the wheel shafts (2a) of the front side truck wheels (2) and the wheel shafts (2a) A chain 14 is installed,
Wherein the wheel springs (2a) and the bogie plate (1) are provided with electric sprockets (15) on which the electric chain (14) is wound. 4. The bogie according to any one of claims 1 to 3, wherein the balancer wheel (2) is made of a metal material wheel and a gear type notch is formed at a closely spaced distance along the outer circumferential surface of the balancer wheel Wherein the carriage device is a self-propelled carriage device for welding or preheating. The vehicle according to any one of claims 1 to 3, wherein a mounting base (17a) extending to the outside of the vehicle wheel (2) is provided on one side or both sides of the bogie plate (1) Characterized in that a flame blocking plate (17) for blocking the flame emitted from the gas torch (12) is assembled and installed. The fire extinguisher according to claim 7, wherein the flame blocking plate (17) is provided so as to be positionally adjustable along a height direction of the mounting base (17a) Wherein the carriage device is a self-propelled carriage device for welding or preheating.

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