JP7057192B2 - Traveling trolley - Google Patents

Description

The present invention relates to a traveling carriage that reduces the influence of heat generated from a processing torch such as a mounted cutting torch or a welding torch.

Manual operation equipped with a gas cutting torch, plasma cutting torch, plasma welding torch, carbon dioxide gas welding torch, etc. (hereinafter referred to as "machining torch") when cutting or welding a work material represented by a steel plate. Welding torches may be used. This traveling carriage is guided by a rail installed on the surface of the work material, or is placed directly on the surface of the work material and manually guided by a worker, and is a processing line such as a target cutting line or a welding line. It is configured to be able to run along. Then, it is possible to operate the processing torch mounted in this traveling process to perform the desired processing.

A processing torch that cuts or welds a work material generates a large amount of heat to preheat or melt the work material to perform the desired processing. For example, in a gas cutting torch, a work material is preheated by a preheating flame that burns a mixed gas of fuel gas and oxygen gas. Further, in a plasma cutting torch or a plasma welding torch, a gas is discharged between an electrode and a work material or a nozzle to turn the gas into plasma, and the plasma turned gas is injected to melt the work material. Further, in the carbon dioxide gas welding torch, a discharge is made between the weld core wire and the work material to melt the weld core wire and the work material.

When performing the above processing, the preheating flame and plasmatized gas concentrate on the processing site, but some of the equipment diffuses radially along the surface of the material to be processed and exists in the surroundings. Has a thermal effect on it.

On the other hand, inside the bogie body, mechanical elements such as a drive motor and a clutch mechanism for disconnecting the rotation of the drive motor from the drive wheels are assembled. Further, a control device including a drive control unit that controls the rotation of the drive motor and an operation state control unit that controls the operation of the traveling carriage or stores the operation state over time is housed.

Various electronic components are used in the control device housed in the bogie body, and it is not preferable that the temperature of the atmosphere rises. For this reason, the traveling trolley equipped with the processing torch has radiant heat from the processing site, radiant heat from the work material whose temperature has risen due to processing, heat from the diffused preheating flame, and plasma conversion. A heat shield plate for preventing the heat of the generated gas (hereinafter, each of the above heats is collectively referred to as "processing heat") is arranged so as to provide a gap between the side surface of the bogie body and facing the processing torch. It is fixed to the dolly body.

In the traveling trolley configured as described above, a heat shield is placed on the trolley body to prevent the heat effect due to processing heat, and an exhaust fan is attached to the trolley body to promote internal exhaust and is housed in the control device. It is possible to reduce the temperature rise of. However, with the miniaturization of the traveling carriage and the expansion of the control target, it is required to further reduce the thermal influence of the processing heat on the control device.

An object of the present invention is to provide a traveling carriage capable of reducing the influence of processing heat on the control device housed in the carriage body.

In order to solve the above problems, a typical traveling carriage according to the present invention is a traveling carriage equipped with a cutting torch for cutting a work material or a welding torch for welding a work material, and is housed inside. It has a bogie body in which a space is formed, a drive motor housed in the accommodation space of the bogie body, and a housing housed in the accommodation space of the bogie body and a control device is arranged inside. The bottom surface of the body faces the inner surface of the bottom plate of the dolly body and is arranged with a gap between the bottom surface and the inner surface of the bottom plate . It is arranged with a gap between them.

In the traveling carriage, a fan that communicates with the outside air and the accommodation space is arranged on one end surface of the carriage main body in the traveling direction, and intake / exhaust communicating with the accommodation space is arranged on the other end surface. A mouth is formed, and the fan is configured to allow outside air to be sucked in and out of the intake / exhaust port through a gap formed between the inner surface of the bottom plate of the bogie body and the bottom surface of the housing. Is preferable.

In the traveling carriage according to the present invention, it is possible to reduce the influence of the processing heat on the control device housed in the carriage body due to the processing heat in the process of operating the mounted processing torch to perform the target processing.

That is, the control device accommodated in the accommodation space of the bogie body is housed in the housing, and the bottom surface of the housing faces the inner surface of the bottom plate of the bogie body, and a gap is provided between the housing and the inner surface. There is. Therefore, the bottom surface of the housing functions as a heat insulating plate, and the air in the gap between the bottom surface of the housing and the bottom plate of the bogie body functions as a heat insulating layer. Therefore, it is possible to reduce the temperature rise inside the housing.

In addition, when a fan is arranged on one end surface of the bogie body in the traveling direction and an intake / exhaust port is formed on the other end surface, the bottom plate of the bogie body is taken in by the fan or exhausted inside. Air can flow through the gap formed between the inner surface of the housing and the bottom surface of the housing. Therefore, the housing can be forcibly cooled, and the temperature rise inside the housing can be reduced.

Further, by providing a gap between the side surface of the housing and the inner surface of the side plate of the bogie body, the gap formed between the bottom surface and the side surface of the housing and the inner surface of the bogie body functions as a heat insulating layer. It can be demonstrated. Therefore, it is possible to reduce the temperature rise inside the housing.

It is a top view of a traveling carriage. FIG. 2 is a sectional view taken along line II-II of FIG. FIG. 3 is a sectional view taken along line III-III of FIG. FIG. 6 is a sectional view taken along line IV-IV of FIG. It is a front view of a traveling carriage. It is a figure explaining the structure of a housing.

Hereinafter, the traveling carriage according to the present invention will be described. The traveling carriage according to the present invention can reduce the thermal influence on the control device even if the temperature of the carriage body rises due to the processing heat when the target processing is performed on the material to be processed by the mounted processing torch. It is the one that was made.

In the traveling carriage according to the present invention, the housing is arranged in the accommodation space formed inside, and the control device is arranged in the housing. Then, the bottom surface of the housing faces the inner surface of the bottom plate of the bogie body, and a gap is provided between the two, so that the heat insulating effect of the air layer existing in the gap is expected.

The control device arranged inside the housing is not particularly limited, and it is preferable to target devices that are easily affected by heat, such as electronic devices. As such a control device, for example, any control device that controls the running of the traveling carriage, controls the operation of the mounted processing torch, and the like can be targeted. Further, it is possible to target a control device that controls the operation of the traveling trolley by integrating and storing the operating time of the traveling trolley and the operating time of the mounted processing torch, or by communicating with the outside. In short, the control device arranged inside the housing does not limit the control target.

Further, the shape of the housing is not particularly limited, and any control device for the traveling carriage may be used as long as it has a shape capable of rationally arranging and accommodating devices that are easily affected by heat. In particular, it is preferable that the bottom surface facing the bottom plate of the bogie body (hereinafter, also referred to as “bottom plate”) and the side surface facing the side plate of the bogie body (hereinafter, also referred to as “side plate”) are continuously formed. That is, it is preferable that the housing is formed in a bottomed box shape.

The material of the housing is not particularly limited. However, in order to reduce the thermal influence on the control device to be arranged inside, it is preferable that the housing is made of a material having high heat insulating properties.

The manufacturing method of the housing is not limited, and the housing may be manufactured by sheet metal processing of a metal plate or by molding of a synthetic resin. However, since control devices including a printed circuit board are arranged inside the housing, it is preferable that they can be rationally arranged and attached. Such a housing is preferably molded using a synthetic resin.

A fan is placed on one end surface of the dolly body in the traveling direction, and a vent is formed on the other end surface, and the fan is operated to be formed between the bottom surface of the housing and the inner surface of the bottom plate of the dolly body. It is preferable to cool the housing by allowing air to flow through the gaps. The fan may be any as long as it can take in or out the inside of the bogie body, and the vent may be good as long as it can be inhaled or inhaled.

Further, the gap between the bogie body and the housing should not be limited between the inner surface of the bottom plate of the bogie body and the bottom surface of the housing, but between the inner surface of the side plate of the bogie body and the side surface of the housing. Is also preferably formed.

As described above, the size of the gap formed between the bottom plate of the bogie body and the inner surface of the side plate and the bottom surface and the side surface of the housing is not limited. That is, it corresponds to the shape and size of the housing set according to the conditions such as the size and shape of the accommodation space formed inside the bogie body and the shape and size of the control device to be arranged inside. It is preferable to set it.

Hereinafter, the traveling carriage according to this embodiment will be described with reference to the drawings. First, the overall configuration of the traveling carriage A will be briefly described. The traveling carriage A has a carriage body 10 in which an accommodation space B for accommodating a housing 1, a drive motor 2, a clutch mechanism, and the like, which will be described later, is formed. The bogie body 10 is a bottomed lower body including a pair of side plates 11 arranged along the traveling direction, a pair of end plates 12a and 12b arranged in a direction orthogonal to the traveling direction, and a bottom plate 13. It has a 10a and an upper body 10b having an upper plate 14 that closes the upper open portion of the lower body 10a.

The drive roller 21 and the driven roller 22 are arranged on one end side (the end side in the arrow a direction) of the bogie body 10, and the free roller 23 is arranged on the other end side (the end side in the arrow b direction). Is placed. As shown in FIG. 1, the drive roller 21 is arranged on the left side in the direction of arrow b, and the driven roller 22 and the free roller 23 are arranged on the right side, respectively.

In the following description, the directions a and b of the arrows are referred to as "traveling direction" or "longitudinal direction", and the directions orthogonal to the directions a and b of the arrows may be referred to as "lateral direction" or "width direction".

On the upper plate 14 of the trolley main body 10, a stand 24 for attaching a torch holder (not shown) configured to hold the processed torch and to adjust the height and inclination angle of the processed torch from the material to be processed is arranged. Has been done. A connector 25 for connecting a power cord, a switch 26 for setting a traveling direction, a clutch lever 27, and a speed adjustment dial 28 are arranged on the upper plate 14, respectively.

Further, it is used when the worker manually guides the traveling direction of the traveling carriage A above the free roller 23 on the other end side (end side in the arrow b direction) of the carriage body 10. The guide handle 29 is configured.

A space 32 is provided between the bottom plate 13 of the bogie body 10 and the outer surface of the bottom plate 13, and the bottom heat insulating plate 31 is arranged. The bottom heat insulating plate 31 is fixed to a mounting portion 13a formed at a predetermined position in the traveling direction on the bottom plate 13.

In particular, the space 32 formed between the bottom plate 13 of the bogie body 10 and the bottom heat insulating plate 31 is open on both side surfaces and the end side in the direction of arrow b. Therefore, it is possible to circulate air through these openings, and it is possible to expect the cooling effect of the circulated air.

Further, a space 34 is provided between the outer surface of the side plate 11 of the bogie main body 10 and the side heat insulating plate 33 is arranged. A pair of elongated holes (not shown) are formed in the side heat insulating plate 33, and when attached to the locking projection 11a formed on the side plate 11 of the bogie body 10, the inside of the plane substantially perpendicular to the surface of the material to be processed. That is, it is configured to be able to move in the vertical direction by a sufficient dimension.

In the traveling carriage A configured as described above, as shown in FIG. 3, the driven roller 21 is mounted on the rail 35 and the driven roller 22 and the free roller 23 are fitted into the guide groove formed in the rail 35 to drive the roller 21. By driving, it is possible to run along the guide groove. Further, the traveling carriage A is directly placed on the surface of the material to be machined, and the operator drives the drive roller 21 while grasping and guiding the guidance handle 29 provided on the carriage body 10, so that the traveling carriage A travels in a desired direction. It is possible to make it.

Then, by operating the mounted processing torch as the traveling carriage A travels, it is possible to perform target processing such as cutting processing or welding processing on the material to be processed.

In the accommodation space B formed inside the bogie main body 10, a housing 1 in which a control device for controlling the operation of the drive motor 2 and the traveling bogie A is arranged is arranged. The accommodation space B is formed by covering the upper opening of the lower body 10a constituting the carriage body 10 with the upper body 10b. That is, the accommodation space B is configured as a space defined by side plates 11 on both sides of the traveling carriage A along the traveling direction, end plates 12a and 12b at both ends in the traveling direction, bottom plates 13 at the lower ends, and upper plates 14 at the upper ends. ing. The shape and dimensions of the accommodation space B are appropriately set according to conditions such as parts to be accommodated, the type of processing torch mounted on the traveling carriage A, and designability.

The drive motor 2 arranged in the accommodation space B rotates the shaft 21a of the drive roller 21 in the forward and reverse directions to drive the traveling carriage A in the direction of arrow a or the direction of arrow b. Therefore, a conduction member 2a such as a gear is interposed and connected to the shaft 21a. The rotation speed, rotation direction, operating time, and the like of the drive motor 2 are controlled by a control device arranged inside the housing 1.

An opening 12c is formed in the end plate 12a of the carriage body 10, and an opening 12d is also formed in the end plate 12b. Therefore, when the upper body 10b is attached to the upper part of the lower body 10a, the accommodation space B communicating with the outside is formed by the openings 12c and 12d formed in the traveling direction.

A fan 3 is arranged in the opening 12c. The fan 3 may be a suction fan that sucks outside air and distributes it to the accommodation space B, or may be an exhaust fan that exhausts the air in the accommodation space B. In this embodiment, a suction fan that sucks outside air is used as the fan 3. Therefore, the opening 12c functions as an intake port, and the opening 12d functions as an exhaust port.

A mounting portion 10c for mounting the housing 1 is formed inside the lower body 10a of the dolly body 10 and on the end plate 12a side. Further, the lower edge constituting the opening 12c formed on the end plate 12b side has a function as a locking portion 10d for locking the housing 1.

It is preferable that the shape and dimensions of the housing 1 arranged in the accommodation space B are appropriately set according to conditions such as the shape and dimensions of the accommodation space B and the shape and dimensions of the control device to be arranged inside. In this embodiment, as shown in FIG. 6, a bottom plate 1a, a pair of side plates 1b standing up from both ends in the width direction of the bottom plate 1a, and a pair of end plates 1c and 1d standing up from both ends in the longitudinal direction of the bottom plate 1a. It is formed in the shape of a bottomed box with an open top (opening 1e).

A bracket 1f is formed in a protruding shape on the end plate 1c of the housing 1, and is configured to be attached to a mounting portion 10c formed inside the lower body 10a of the bogie body 10 via the bracket 1f. .. Further, a locking projection 1g is formed on the end plate 1d, and is configured to be able to be locked to the locking portion 10d formed on the carriage body 10 via the locking projection 1g.

In the housing 1 configured as described above, ribs and dents (not shown) are formed inside so as to correspond to the dimensions, shapes, and positions to be arranged of the printed circuit boards and electronic devices constituting the control device 4. , Each is reasonably placed and mounted in place.

When the bracket 1f is attached to the attachment portion 10c of the lower body 10a and the locking projection 1g is locked to the locking portion 10d to attach the housing 1, the bottom plate 1a of the housing 1 is the bottom plate 13 of the dolly body 10. It is arranged facing the inner surface, and a gap 5 is formed between the two. As described above, the gap 5 is formed between the inner surface of the bottom plate 13 of the carriage body 10 and the bottom plate 1a of the housing 1, and the gap 5 functions as a heat insulating layer. Therefore, it is possible to reduce the thermal influence on the control device 4 arranged in the housing 1.

Further, since the gap 5 also has a function as a passage formed by connecting between the opening 12c and the opening 12d in the accommodation space B, the outside air sucked by driving the fan 3 arranged in the opening 12c can be sucked. It is possible to circulate and cool the bottom plate 1a of the housing 1. Therefore, it is possible to reduce the thermal influence on the control device 4 arranged in the housing 1.

In particular, in this embodiment, the side plate 1b of the housing 1 is arranged so as to face the inner surface of the side plate 11 of the carriage body 10, and a gap 6 is formed between the two. The gap 6 also has a function as a heat insulating layer and a function as a passage as in the gap 5 described above. Therefore, it is possible to reduce the influence of heat from the side plate 11 of the bogie body 10 on the side plate 1b of the housing 1, and when the fan 3 is driven, the bottom plate 1a and the side plate 1b of the housing 1 are cooled at the same time. Therefore, it is possible to reduce the thermal influence on the control device 4 arranged in the housing 1.

As described above, in this embodiment, gaps 5 and 6 are formed between the housing 1 and the bottom plate 13 of the bogie body 10 and between the side plates 11, respectively, but the opening 1e of the housing 1 and the upper plate are formed. It is not limited whether or not a gap is formed between the inner surface of the 14 and the inner surface of the 14. That is, when a gap is formed between the opening 1e of the housing 1 and the upper plate 14, there is a possibility that the influence of heat due to the convection of air in the accommodation space B may occur. However, by driving the fan 3, it is possible to replace the air in the accommodation space B with the outside air, and it is possible to eliminate the thermal influence due to the convection of the air.

In the traveling carriage A configured as described above, a gap 5 is formed between the bottom plate 1a of the housing 1 arranged in the accommodation space B formed inside the carriage body 10 and the bottom surface 13 of the carriage body 10. There is. Therefore, since the gap 5 functions as a heat insulating layer, it is possible to reduce the thermal influence on the control device 4 arranged in the housing 1. In particular, by attaching the fan 3 to the opening 12c of the end plate 12a and driving it, it is possible to forcibly circulate air through the gap 5, and it is possible to exert a cooling effect on the housing 1. At this time, the air flowing through the gap 5 can be expected not only to have a cooling effect on the housing 1 but also to have a cooling effect on the bottom plate 13 of the carriage body 10.

Further, by forming a gap 6 between the side plate 1b of the housing 1 and the inner surface of the side plate 11 of the bogie body 10, heat insulating layers are formed on three sides of the housing 1, further reducing the heat effect. It is possible to do. Similarly, when the fan 3 is driven, a larger cooling effect can be expected.

The traveling carriage according to the present invention can be used as a cutting torch, a cutting device equipped with a welding torch, or a welding device that applies heat to a work material to perform the desired processing.

A Traveling trolley B Accommodation space 1 Housing 1a Bottom plate 1b Side plate 1c 1d End plate 1e Opening 1f Bracket 1g Locking protrusion 2 Drive motor 2a Conductive member 3 Fan 4 Control equipment 5, 6 Gap 10 trolley body 10a Lower body 10b Upper body 10c Mounting part 10d Locking part 11 Side plate 11a Locking protrusion 12a, 12b End plate 12c, 12d Opening 13 Bottom plate 13a Mounting part 14 Top plate 21 Drive roller 21a Shaft 22 Driven roller 23 Free roller 24 Stand 25 Connector 26 Switch 27 Clutch lever 28 Speed adjustment dial 29 Guidance handle 31 Bottom heat shield 32, 34 Space 33 Side heat shield 35 Rail

Claims (2)

A traveling trolley equipped with a cutting torch that cuts the work material or a welding torch that welds the work material.
The main body of the dolly with a storage space formed inside,
The drive motor accommodated in the accommodation space of the bogie body and
It has a housing that is housed in the storage space of the dolly body and has a control device arranged inside.
The housing is arranged so that the bottom surface faces the inner surface of the bottom plate of the bogie body and a gap is provided between the bottom surface and the inner surface of the bottom plate . A traveling trolley characterized by being arranged with a gap between the two . A fan that communicates with the outside air and the accommodation space is arranged on one end surface of the bogie body in the traveling direction, and an intake / exhaust port communicating with the accommodation space is formed on the other end surface. The claim is characterized in that the outside air is configured to be able to be sucked in and out from the intake / exhaust port through a gap formed between the inner surface of the bottom plate of the carriage body and the bottom surface of the housing by the fan. The traveling trolley described in 1.

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