JP2019155416A - Welding carriage for reinforcement belt - Google Patents

Abstract

To provide a welding carriage for a reinforcement belt capable of continuously welding a welding line position existing in the reinforcement belt.SOLUTION: A welding carriage 20 for a reinforcement belt wound on the outer periphery or the inner periphery of a reinforcement object 10 and welding the reinforcement belt 15 projected outward or inward, comprises a loading space 40 for mounting a welding machine body 22, a loading space wheel 42 for supporting the loading space 40 so as to freely travel by sandwiching the reinforcement belt 15, a tip carriage 50 having a support wheel 52, which is curvedly arranged in front of the loading space 40, a front wheel 60 curvedly supported by the tip carriage 50 and imparting travel power, a driven carriage 70 having a support wheel 72, which is curvedly arranged in the rear of the loading space 40 and a rear wheel 80 curvedly supported by the driven carriage 70 and guiding a welding torch 24.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a welding cart for a reinforcing band, and in particular, a reinforcement suitable for use when welding a reinforcing band protruding outward or inward that is wound around the outer periphery or inner periphery of a steel reservoir. The present invention relates to a belt welding cart.

  There are known steel distribution ponds for waterworks having steel roof plates, bottom plates, and side plates, which are joined by welding (see Patent Documents 1 to 3).

  For example, as illustrated in FIG. 1 (front view) and FIG. 2 (horizontal sectional view taken along II-II in FIG. 1), for example, three side plates 12, 13, and 14 are stacked on the bottom plate 11. There is a reservoir 10 that is reinforced by welding with reinforcing bands 15 and 16 therebetween. In the figure, 18 is a fence.

  In such a steel distribution reservoir 10, conventionally, the reinforcing bands 15 and 16 have been welded manually.

  In addition, although it is not related to the welding of a reservoir, Patent Document 4 discloses a self-propelled no-rail welding in which a target portion is continuously fillet welded along a T-shaped frame material protruding on a side surface of a pressure vessel or the like. The dolly is listed.

  Patent Document 5 describes a rail-free self-propelled carriage for fillet welding of a standing plate and a narrow lower plate.

  Patent Document 6 describes a welding line copying apparatus in which a guide roller that is in rolling contact with a vertical surface of a vertical plate of a fillet joint as a copying surface is pressed against the copying surface to guide a moving carriage. Yes.

JP 2004-27517 A Japanese Patent No. 5919754 Japanese Patent No. 6144104 Japanese Patent No. 3758731 JP-A 63-84793 Japanese Patent Laid-Open No. 8-25042

  However, in the technique described in Patent Document 4, there is a member such as a T-shaped frame member in the target structure or it must be installed. Further, only the welding torch is moved, and it is not considered to travel with a welding machine mounted on a carriage.

  Moreover, although the technique of patent document 5 is using the wheel contact | abutted to the standing board as a guide as a mechanism which carries out the specified line length without a rail, it is the outside of a curved part like a distribution tank reinforcement part. Does not consider running. Further, depending on the shape of the standing plate, it cannot be used for the rail of the carriage.

  In addition, none of the techniques described in the patent documents considers traveling with a welding machine or the like loaded on a carriage, and in particular, reinforcement such as a reservoir that is one of the application targets of the present invention. There are problems such as being difficult to apply to welding at the position of the weld line in the belt.

  The present invention has been made to solve the above-described conventional problems, and an object of the present invention is to provide a welding belt for a reinforcing band capable of continuously welding the position of a welding line in the reinforcing band.

  The present invention is a welding trolley for a reinforcing band for welding a reinforcing band protruding outward or inward, which is wound around an outer periphery or an inner periphery of a reinforcing object, and a loading platform on which a welding machine main body is mounted. , A load carrier wheel for movably supporting the load carrier with the reinforcing band interposed therebetween, a front carriage provided with a support wheel, which is disposed in a curved manner in front of the load carrier, and can be bent to the front carriage. A front wheel for providing power for traveling, a follower wheel provided with a support wheel, which is arranged to bend behind the loading platform, and a welding torch supported by the follower vehicle so as to bend. The above-mentioned problem is solved by providing a rear wheel for guiding the wheel.

  Here, a welding torch, a welding sloop, a control panel, and a battery can be mounted on the loading platform.

  In addition, a pair of support wheels are rotatably provided above and below the front carriage, and the support wheels are arranged so that the reinforcement band is vertically moved by springs provided at fulcrums at both ends of the upper and lower front carriage support links. It can be energized so as to run while sandwiched.

  Further, the front wheel support for supporting the front wheel can be urged in a direction in contact with the outer peripheral end of the reinforcing band by a spring disposed at a fulcrum provided at the tip of the front carriage.

  In addition, a pair of support wheels are rotatably disposed above and below the follower truck, and the support wheels vertically move the reinforcing band by springs disposed at both fulcrums of the pair of upper and lower follower support links. It is possible to energize the vehicle so as to run between the two.

  Further, the rear wheel support for supporting the rear wheel can be urged in a direction in contact with the outer peripheral end of the reinforcing band by a spring disposed at a fulcrum provided at the rear end of the slave carriage.

  ADVANTAGE OF THE INVENTION According to this invention, the welding cart for reinforcement bands which can weld continuously the welding line position in a reinforcement band can be provided.

The front view which shows the state which has arrange | positioned embodiment of the welding trolley | bogie which concerns on this invention to the distribution reservoir which is an application object of this invention. Horizontal sectional view taken along line II-II in FIG. FIG. 2 is an enlarged horizontal sectional view of the welding cart portion of FIG. Fig. 3 is a vertical cross-sectional view from the IV direction. Cross-sectional view along line VV in FIG. Cross-sectional view along line VI-VI in FIG. Cross-sectional view along line VII-VII in FIG. The view of the welding cart of Fig. 2 from the rear Horizontal sectional view along line IX-IX in FIG. Flow chart showing the construction procedure according to the embodiment

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by the content described in the following embodiment and an Example. In addition, the constituent elements in the embodiments and examples described below include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in the so-called equivalent range. Furthermore, the constituent elements disclosed in the embodiments and examples described below may be appropriately combined or may be appropriately selected and used.

  The first embodiment of the present invention is shown in FIG. 3 (an enlarged horizontal sectional view of the welding carriage portion of FIG. 2), FIG. 4 (a longitudinal sectional view of FIG. 3 viewed from the IV direction), and FIG. FIG. 6 (cross-sectional view taken along line VI-VI in FIG. 4), FIG. 7 (cross-sectional view taken along line VII-VII in FIG. 4), FIG. 8 (FIG. 2). As shown in FIG. 9 (horizontal cross-sectional view taken along line IX-IX in FIG. 8), the outer side wound around the outer periphery of the reservoir 10 to be reinforced, as shown in FIG. A welding cart 20 for reinforcing band for welding the reinforcing band 15 protruding to the loader 40 for supporting the loading platform 40 on which the welding machine main body 22 is mounted and the loading platform 40 so as to run freely. A load carrier wheel 42, a front carriage 50 having a support wheel 52, which is disposed in a curved manner by a free fulcrum 44 in front of the load carrier 40 (to the right in FIG. 4), A front wheel 60 for applying a main power for traveling, which is urged in a direction of the reservoir 10 (upward in FIG. 3) by a fulcrum 54 on which a spring 55 is disposed and supported to bend on the carriage 50; On the rear side of the cargo bed 40 (left side in FIG. 4), a follower truck 70 having a support wheel 72 that is freely bent by a free fulcrum 46, and a spring 75 is provided on the follower truck 70. And a rear wheel 80 for guiding the welding torch 24, which is urged toward the distribution reservoir 10 by the fulcrum 74 (upward in FIG. 3) and supported in a curved manner.

  The loading platform 40 has, for example, a welding machine main body 22 at the center, a welding torch 24 and a welding sloop 28 on which the welding torches 28 are mounted on the rear (left side in FIG. 4), and a control panel on the front (right side in FIG. 4). 30 and a battery 32 can be mounted. In FIG. 4, 22A is a gas connection plug for supplying a shield gas for welding to the welding torch 24, 22B is a gas gauge, 22C is a gas adjusting knob, and 23 is a shield gas pipe.

  As described above, the main equipment related to welding is provided in the loading platform 40 itself, so that it is not affected by restrictions due to the power cord or the like. Accordingly, it is possible to continuously weld the weld line in the reinforcing band 15. Furthermore, since the reinforcing band 15 is used as a guide instead of the side plate corresponding to the standing plate, there is no restriction due to the shape of the side plate corresponding to the standing plate.

  The front carriage 50 is provided with a pair of support wheels 52 rotatably at the top and bottom thereof, and the support wheels 52 are coil springs 57 and 58 disposed at fulcrums at both ends of the top and bottom pair of front carriage support links 56. (See FIG. 4), the reinforcing belt 15 is biased so as to travel from above and below. In this way, by making it rotatable at both ends of the leading carriage support link 56, it is possible to cope with a change in the plate thickness of the reinforcing band 15. In addition, when the change of the plate | board thickness of the reinforcement band 15 does not become a problem, the support wheel 52 side of the tip carriage support link 56 can be fixed, and the coil spring 58 can also be abbreviate | omitted.

  The front wheel support 62 that supports the front wheel 60 is attached in a direction (upward in FIG. 3) in contact with the outer peripheral end of the reinforcing band 15 by a coil spring 55 disposed at a fulcrum 54 provided at the tip of the front carriage 50. It is energized.

  The front wheel 60 is rotationally driven by, for example, a motor (not shown) incorporated in the front wheel support 62 so as to pull the entire welding cart 20 forward. By adopting a so-called front drive system that pulls from the front of the welding carriage 20 along the outer peripheral edge of the reinforcing band 15, stable running is possible. Therefore, even if there is no member such as a T-shaped frame material, the front wheel 60 can move forward by contacting the end of the reinforcing band 15 as the main power, and the trajectory of the curved portion and the curved portion can be corrected. As described above, the front wheel 60 having both the forward power and the trajectory correction mechanism can prevent the apparatus from moving forward and dropping while ignoring the trajectory correction. On the other hand, when the main power for traveling is applied to the loading platform 40 and the follower cart 70, traveling may become unstable and the welding cart 20 may fall from the reinforcing band 15. Auxiliary power can be added to wheels other than the front wheels 60.

  As with the front carriage 50, the follower truck 70 has a pair of support wheels 72 rotatably disposed above and below it, and the support wheels 72 are arranged at fulcrums at both ends of the pair of upper and lower follower support links 76. It is urged | biased by driving | running | pinching the reinforcement belt | band | zone 15 from the upper and lower sides by the provided coil springs 77 and 78. FIG. In this way, by making the both ends of the slave carriage support link 76 rotatable, it is possible to cope with a change in the plate thickness of the reinforcing band 15. In addition, when the change of the plate | board thickness of the reinforcement band 15 does not become a problem, the support wheel 72 side of the follower support link 76 can be fixed, and the coil spring 78 can also be abbreviate | omitted.

  Similarly to the front wheel support 62, the rear wheel support 82 that supports the rear wheel 80 is also in contact with the outer peripheral end of the reinforcing band 15 by a coil spring 75 disposed at a fulcrum 74 provided at the rear end of the follower truck 70. It is biased in the direction of contact (upward direction in FIG. 3).

  As shown in detail in FIG. 8, the rear wheel support 82 of the rear wheel 80 is provided with a support 84 for a welding torch, and a torch guide roller 85 is provided at the tip of the welding torch 24. The torch guide roller 85 is pressed against the reinforcing band 15 by a weak spring (not shown) as shown in FIG. 9, thereby guiding the welding torch 24 along the plate end of the reinforcing band 15. . In addition, by controlling the welding torch 24 between the relatively small diameter torch guide roller 85 and the rear wheel 80, continuous welding without special adjustment of the welding torch 24 for a certain degree of curvature (about R1000). Is possible.

  The welding torch support 84 is provided with an adjustment mechanism 84A, and the position of the tip of the welding torch 24 can be adjusted up and down and left and right according to the level difference at the end of the reinforcing band 15 and the plate thickness difference. Is connected to the shield gas pipe 23.

  Here, the reason why the tip position of the welding torch 24 is shifted rearward (downward in FIG. 9) from the contact point of the reinforcing band 15 and the rear wheel 80 is to enable stable guide.

  Next, the construction procedure will be described with reference to FIG.

  First, in step 100, the target welding length (entire circumference or part) is temporarily attached (referred to as temporary welding) by manual welding.

  Next, at step 110, the leading carriage 50 and the slave carriage 70 are installed at predetermined positions of the reinforcing band 15.

  Next, in step 120, the loading platform 40 of the present apparatus is installed and connected between the front carriage 50 and the slave carriage 70 using a crane (not shown). Even after installation, the crane suspension will not be removed until the main installation is completed for safety.

  Next, in step 130, the gas supply line is connected to the gas connection plug 22 </ b> A of the loading platform 40 by a gas cylinder (not shown) or the like.

  Next, at step 140, the position of the welding torch 24 of the follower truck 70 is adjusted.

  Next, in step 150, the connection between the crane and the loading platform 40 is disconnected, and the main body is self-supported at a predetermined position.

  Next, at step 160, the control rod 30 adjusts the welding rod feed speed, shield gas amount, and carriage speed.

  Next, in step 170, welding is performed while the welding carriage 20 is running.

  At this time, as shown on the left side of FIG. 3, when the welding carriage 20 that has traveled along the straight line portion hits the curved part, it follows the plate end (outer peripheral end) of the reinforcing band 15 as shown on the right side of FIG. 3. And stable running.

  After the end of welding, in step 180, the welding carriage 20 is removed from the reinforcing band 15 to be welded in the reverse procedure.

  Here, the reason why the welding cart 20 is divided into the loading platform 40, the leading cart 50 and the slave cart 70 is to correspond to the curved portion (R = about 1000 mm) of the reinforcing band 15. For the same reason, in order to secure the rotation region of the leading carriage 50 and the follower carriage 70, the planar shape of the loading platform 40 is a convex shape in which both ends on the reinforcing band 15 side are cut out as shown in FIG.

  The shield gas is supplied from the outside by a shield gas pipe as in the present embodiment, or an additional carriage for carrying a gas cylinder is provided, and the welding gas is allowed to travel along the outer periphery of the reinforcing band 15 together with the welding carriage 20 or welded. It can be mounted on the carriage 20. When the gas cylinder is mounted on the welding carriage 20, welding can be continued without supplying gas from the outside.

  In the above description, the welding carriage 20 is disposed in the reinforcing band 15 between the first-stage side plate 12 and the second-stage side plate 13. However, the welding of the reinforcing band 16 between the second-stage side plate 13 and the third-stage side plate 14 is performed. The same applies to the above.

  Further, when the reinforcing band protrudes to the inside of the reservoir, it is also possible to arrange a welding carriage inside the distributing reservoir and weld the reinforcing band from the inside.

  In the above-described embodiment, the present invention has been applied to welding of the reinforcing band of the distribution reservoir. However, the application target of the present invention is not limited to this, and similarly to the welding of the reinforcing band of structures other than the distribution reservoir. Applicable.

DESCRIPTION OF SYMBOLS 10 ... Reservoir 12, 13, 14 ... Side plate 15, 16 ... Reinforcement belt 20 ... Welding trolley 22 ... Welding machine main body 24 ... Welding torch 26 ... Welding sloop stand 28 ... Welding sloop 30 ... Control panel 32 ... Battery 40 ... Loading platform 42 ... Wheel for loading platform 50 ... Driving cart 52 ... Supporting wheel 56 ... Driving cart support link 57, 58 ... Coil spring 60 ... Front wheel 62 ... Front wheel support 70 ... Slave cart 72 ... Support wheel 76 ... Slave cart support link 77,78 ... Coil spring 80 ... Rear wheel 82 ... Rear wheel support 84 ... Support for welding torch 85 ... Torch guide roller

Claims (6)

A welding belt for a reinforcing band for welding a reinforcing band protruding outward or inward, which is wound around the outer periphery or inner periphery of the object to be reinforced,
A loading platform on which the welder body is mounted;
A load carrier wheel for movably supporting the load carrier across the reinforcing band;
A tip carriage provided with support wheels, which is arranged in a curved manner in front of the loading platform;
A front wheel that is supported by the leading carriage so as to bend, and that provides driving power;
A follower truck provided with support wheels, arranged in a curved manner behind the cargo bed,
A rear wheel for guiding a welding torch supported in a curved manner by the follower,
A welding cart for a reinforcing band, characterized by comprising:   The welding cart for reinforcing bands according to claim 1, wherein a welding torch, a welding sloop, a control panel, and a battery are mounted on the loading platform.   A pair of support wheels are rotatably provided above and below the front carriage, and the support wheels sandwich the reinforcement band from above and below by springs provided at fulcrums at both ends of the pair of top and bottom front carriage support links. The welding cart for reinforcing bands according to claim 1 or 2, wherein the welding cart is urged to travel.   2. The front wheel support for supporting the front wheel is urged in a direction in contact with the outer peripheral end of the reinforcing band by a spring disposed at a fulcrum provided at a tip of the front carriage. The welding cart for reinforcement bands in any one of thru | or 3.   A pair of support wheels are rotatably disposed above and below the follower truck, and the support wheels sandwich the reinforcement band from above and below by springs disposed at both fulcrums of the pair of upper and lower follower support links. The welding cart for a reinforcing band according to any one of claims 1 to 4, wherein the welding cart is urged so as to travel at a distance.   The rear wheel support that supports the rear wheel is urged in a direction in contact with the outer peripheral end of the reinforcing band by a spring disposed at a fulcrum provided at a rear end of the follower truck. The welding cart for reinforcing bands according to any one of claims 1 to 5.

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