JP2004019304A - Air-conditioning apparatus supporting device for inside of tunnel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air-conditioning apparatus supporting device for the inside of a tunnel capable of suppressing the number of parts and cost increase and maintaining a stable support state even in a turbulent air current generated in an installation site. <P>SOLUTION: The device for suspendingly supporting an air-conditioning apparatus such as a dust discharge duct inside the tunnel is provided with a hanger rail 2 provided at a top part in the tunnel; trucks 3A, 3B having wheels 3A4 rollable on the hanger rail 2; and a suspension-support member 12 fastened to the trucks 3A, 3B and wound around the air-conditioning apparatus 11, and is characterized in that the guide rail 2 is provided with a locking part 13 for impeding the lift of the wheels 3A4, above the wheels 3A4 provided at the trucks 3A, 3B. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a device for supporting an air conditioner in a tunnel, and more particularly, to a device for supporting a duct for discharging dust in a tunnel, a so-called wind tube.
[0002]
[Prior art]
In the tunnel, an air conditioner for discharging dust and the like at the site to the outside is used to prevent the working environment at the excavation site from being deteriorated by dust and the like.
As one of the air conditioners, there is an air tube that forms a duct with a pipe or the like.
The air tube is preferably suspended from the ceiling of the tunnel because it does not hinder the work site. Conventionally, a rail is provided on the ceiling, and a suspension mounted on a trolley movable along the rail is conventionally used. It has been practiced to hang a carrying wire around a wind tube to support it in a suspended manner.
When excavating a face in a tunnel, blasting work may be performed. In this case, it is necessary to evacuate the blasting position as necessary so that the wind pipe is not damaged by a blast or the like. For this reason, the air tube has an expandable and contractible structure, and when blasting, it is moved from the blasting site, and after the blasting, it can be moved again toward the face.
[0003]
[Problems to be solved by the invention]
When exhausting dust from the air duct, the method of sucking dust scattered around the face and discharging the dust to the outside is adopted.However, turbulence generated around the opening of the air duct may cause a phenomenon such as rampage. However, it is necessary to prevent the support state from becoming unstable. For this reason, conventionally, it has been considered to utilize the weight of the material used for the air tube, and specifically, it has been proposed to employ a steel tube configured to be extendable and contractible as the air tube.
However, when a steel pipe is used, it is necessary to increase the strength of a hanging wire for suspension support or to prepare a large number of wires in view of its weight. For this reason, there is a possibility that an increase in the number of components and an increase in the cost of a single component may occur.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide a configuration capable of suppressing the increase in the number of parts and cost, and maintaining a stable support state even by turbulence generated at an installation site, in view of the problems in the above-described conventional air conditioner support device for tunnels. An object of the present invention is to provide a device for supporting an air conditioner in a tunnel, comprising
[0005]
[Means for Solving the Problems]
The invention according to claim 1 is an apparatus for suspending and supporting an air-conditioning device such as a dust discharge duct in a tunnel, wherein a hanger rail provided on a ceiling portion in the tunnel and a roll on the hanger rail are provided. A trolley having movable wheels, and a hanging support member hung on the trolley and wrapped around the air-conditioning equipment, wherein the guide rail includes, above the wheels of the trolley, It is characterized in that a locking portion for preventing the wheel from floating is provided.
In the invention according to the present invention, since the locking portion for preventing the wheel from floating is provided above the wheel of the bogie, the bogie is used when the air conditioner to be suspended and supported flaps. Can be prevented from floating, and a stable supporting state can be maintained even when a dust discharge duct or the like, which is suspended and supported, becomes violent. In particular, in the case where a cylindrical body made of a flexible member having flexibility is used as the air conditioning equipment, when the air conditioning equipment fluctuates due to the atmospheric pressure at the place where the air conditioning equipment is installed, this is used. The hanging cart does not exhibit unstable behavior on the hanger rail, and the supporting state of the lightweight air conditioning equipment can be stabilized.
[0006]
According to a second aspect of the present invention, in addition to the first aspect of the present invention, the locking portion is formed of a piece having an overhang length corresponding to at least a width of the wheel. I have.
In the invention described in this claim, both the lifting of the wheels and the inclination of the bogie are prevented by the one part forming the locking portion, so that the direction of the bogie can be changed without requiring a special bogie holding mechanism or the like. It is possible to maintain a state in which the air conditioner can be smoothly moved on the top, and thus, even if the air-conditioning device suspended and supported by the bogie is violated, a stable configuration can be maintained with a simple configuration.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings.
FIG. 1 is a diagram showing a main configuration of a tunnel air conditioner support device according to an example for describing an embodiment of the present invention. In FIG. 1, a tunnel air conditioner support device 1 includes a hanger rail 2 and a hanger rail 2. And a carriage 3.
Although not shown, the hanger rail 2 is made of a truss material suspended and supported by a chain or the like hung on an anchor member fixed to the ceiling in the tunnel. You can adjust the length.
The male joint member 4 fixed to the rectangular section steel 2A located at the upper part of the hanger rail 2 and extending from the longitudinal end of the hanger rail 2 and the end on the same side thereof A configuration is used in which female joint members 5 having the same rectangular cross section provided at different positions of the portion are provided at alternate positions at both ends in the longitudinal direction. In this configuration, when joining together, both the male joint member 4 and the female joint member 5 are fitted and fastened to the opposing joint members.
[0008]
At the lower part of the hanger rail 2, a support bracket 6 having a downwardly T-shaped cross section is fixed, and a rack 7 extending along the longitudinal direction of the hanger rail 2 is provided on the lower surface of the support bracket 6. ing.
The rack 7 can be engaged with a pinion provided on the side of the truck 3 described later.
[0009]
The trolley 3 includes a driving trolley 3A equipped with a motor 8 (see FIG. 3) as a driving source, and a driven trolley 3B that can be linked to the driving trolley 3A.
The configuration of the driving bogie 3A is shown in FIGS. 2 and 3.
In FIG. 3, the drive truck 3A includes a pair of side plates 3A1, and a plurality of rotating shafts 3A2 and 3A3 are supported between opposing surfaces of the side plates 3A1.
The rotating shaft 3A2 located on the upper side of the driving trolley 3A is inserted for each side plate 3A1, and wheels 3A4 are attached to the shaft ends.
The wheel 3A4 is positioned so as to be mounted on the upper surface of a horizontal piece (for convenience, indicated by reference numeral 6A in FIGS. 2 and 3) provided on the support bracket 6 on the hanger rail 2 side, and further, for each side plate 3A1. By being supported by the inserted rotating shaft 3A2, as shown in FIG. 3, the support bracket 6 is disposed to face the vertical piece (for convenience, indicated by reference numeral 6B in FIG. 3). .
[0010]
When the wheels 3A4 are mounted on or separated from the upper surface of the horizontal piece of the support bracket 6, the knobs 3A5 attached to the shaft ends of the respective rotating shafts 3A2 are pushed in a direction in which the wheels 3A4 come into contact with or separate from each other. By performing the pulling operation, the wheels 3A4 can be separated from each other by pulling them so as to make the facing interval of the wheels 3A4 larger than the overhang length of the horizontal piece of the support bracket 6, and to narrow the facing interval again from the state where the facing interval is increased. To move the wheel 3A4 closer to the interval at which the wheel 3A4 can be mounted on the upper surface of the horizontal piece.
[0011]
A driving wheel 3A7 having a plurality of pins 3A6 is fixed along a circumferential direction to a rotating shaft 3A3 located below the rotating shaft 3A2 in the driving bogie 3A, and a forward / reverse rotatable motor 8 serving as a driving source is provided. Is directly connected to the end in the axial direction.
The arrangement interval of the pins 3A6 provided on the drive wheel 3A7 corresponds to the pitch of the racks 7 provided on the support bracket 6 on the hanger rail 2 side. When the drive wheel 3A7 rotates, the pins 3A6 mesh with the rack 7 sequentially. This allows the drive cart 3A to run on its own. In FIG. 1, reference numeral 9 used for the drive truck 3A indicates a light mounted on the drive truck 3A to illuminate the face.
[0012]
The driven trolley 3B has the same configuration except that the driven trolley 3A does not include the drive wheel 3A7.
Although not shown, the driving trolley 3A, the driven trolley 3B, and the driven trolley 3B are connected to each other using a pulling member such as a wire or a cable. In the present embodiment, the driving trolley 3A is connected to a power feeding cable (not shown) of the light 9. The driven truck 3B adjacent to the driving truck 3A and the driven truck 3B connected to the driven truck 3B can be driven.
The movement of each bogie is such that, when the driving bogie 3A is self-propelled toward the face, the towing member is pulled by this movement, so that the driven bogie 3B located behind and the bogies move toward the face. Is set, and when the driving bogie 3A runs in the opposite direction, the operation of the driving bogie 3A abutting on the driven bogie 3B adjacent thereto is repeated between the rear driven bogies, whereby the driven bogie 3A drives the driven bogie 3A. The moving direction of the direction in which 3B is pushed and moved away from the face is set.
[0013]
A support plate 10 is fixed to the lower surface of the side plate 3A1 of the driving trolley 3A and the driven trolley 3B. A tying member for suspending and supporting a dust discharge duct 11 used as a tunnel air conditioner is mounted on the support plate 10. Is attached to the end of the wire 12.
In FIG. 1, the dust discharge duct 11 is a member corresponding to a wind tube, and is formed of a tubular member made of a flexible member having flexibility such as a hood cloth or a resin material. (Not shown) are integrated with the cylindrical member.
The dust discharge duct 11 is configured to be able to expand and contract in the moving direction of each of the carts 3A and 3B, and is hooked to a wire 12 having a portion where each aggregate is integrated with each of the carts 3A and 3B. Have been. The wire 12 corresponds to a suspension support member of the dust discharge duct.
[0014]
On the other hand, the hanger rail 2 is provided with a configuration for stabilizing the behavior of the carts 3A and 3B.
1 and 3, a hanger rail 2 and a base portion are integrally formed above a wheel 3A4 of the driving bogie 3A and the driven bogie 3B by a plate member which is laterally extended in FIG. An engaging portion 13 is provided.
In the case of the present embodiment, as shown in FIG. 3, the locking portion 13 has a base integrated with the vertical piece 2B of the hanger rail 2 above the wheel 3A4 by welding or the like, and the overhang length is set to each bogie. 3A and 3B are set to have a length corresponding to at least the width of the wheel 3A4. In the present embodiment, a gap allowing the rolling of the wheel 3A4 is provided between the outer peripheral surface of the wheel 3A4 and the flange of the wheel 3A4. It is provided at a position inside the outer peripheral surface of the flange and outside the outer peripheral surface of the wheel 3A4.
The locking portion 13 can stop the outer peripheral surface of the wheel 3A4 when the wheel 3A4 floats up by setting the installation position and the overhang length, and when the wheel 3A4 is tilted together with the trolleys 3A and 3B, the locking portion 13 can stop the wheel 3A4. You can stop the collar.
The configuration of the locking portion 13 is not limited to the vicinity of the flange of the wheel 3A4, but may be a length that overlaps the bent upper surface of the bogies 3A and 3B (indicated by reference numeral 3A10 in FIG. 3 for convenience). It is also possible to provide the set object with a gap above the upper surface 3A10 that does not hinder the movement of the carts 3A and 3B.
[0015]
In the present embodiment, the dust discharging duct 11 to be suspended and supported has the opening positioned near the face face according to the above configuration. When positioning the dust discharge duct 11 in the vicinity of the face, the driving bogie 3A is self-propelled, and accordingly, the driven bogie 3B and the driven bogie 3B adjacent to the driving bogie 3A are driven via the power supply cable. As a result, the dust discharge duct 11 is extended.
When the dust discharge duct 11 is evacuated from the vicinity of the blasting site during blasting work or the like, each of the driven trucks 3B is pushed and moved by the driving bogie 3A to shrink the dust discharge duct 11 and move the opening away from the blasting site. be able to.
When the dust discharge duct 11 is extended and the opening is positioned near the face, the dust discharge duct 11 can suck and discharge the dust scattered or floating around the face. At this time, in the vicinity of the opening of the dust discharge duct 11, the dust discharge duct 11 is violated by turbulence when the surrounding air is converged and sucked. For this reason, a part of the dust discharging duct 11 may collide with each of the trucks 3A and 3B which suspend the dust discharging duct 11, thereby causing the driving truck 3A or a part of the driven truck 3B to collide. May be pushed up by the dust discharge duct 11 or receive an impact from obliquely below.
[0016]
The upper surfaces of the side plates 3A1 of the driving trolley 3A and the driven trolley 3B are provided with a slight gap necessary for the rolling of the wheels 3A4 with respect to the locking portions 13 provided on the hanger rail 2 side. When the driving truck 3A or the driven truck 3B tries to be pushed up or inclined, as shown in FIG. 3 (B), the engaging portion 13 causes the outer peripheral surface of the wheel 3A4 or the wheel 3A4 to be pushed. The attached collar is restricted from moving. As a result, the drive cart 3A or a part of the driven cart 3B connected to the drive cart 3A is prevented from floating from the hanger rail 2, and is dropped from the hanger rail 2 so that the suspended support of the dust discharging fact 11 cannot be maintained. The worst situation can be prevented.
As a result, the driving bogie 3A and the driven bogie 3B do not generate unstable behavior on the hanger rail 2, so that the movement on the hanger rail 2 can be performed smoothly and the behavior of the dust discharging duct 11 having stable behavior can be improved. The supporting state can be maintained.
[0017]
According to the present embodiment, even when the dust discharging duct 11 made of a material whose behavior tends to be unstable due to turbulence due to its light weight compared to the steel pipe is used, the driving bogie 3A and the driven bogie 3B do not. Since the suspension support can be maintained, the driving force of the driving bogie 3A can be trained as compared with the case where the steel pipe is used as the dust discharge duct, and energy saving in power can be achieved.
In the present embodiment, as the tunnel air conditioner, the dust exhaust duct 11 capable of sucking dust is targeted, but a configuration is provided in which fresh air is discharged from the outside to the periphery of the face without using suction. Of course, it is also possible to target air conditioning equipment for tunnels.
Further, as the configuration of the locking portion 13, instead of being integrated with the support bracket 6, a cross-sectional shape having both the locking portion 13 and the installation surface of the rack 7 is a channel-shaped member or an H-shaped member. It is also possible to use members.
[0018]
【The invention's effect】
According to the first aspect of the invention, since the hanger rail is provided with the locking portion for preventing the wheel from floating, the bogie is lifted when the air conditioner to be suspended and supported flaps. Therefore, a stable supporting state can be maintained even when a dust discharge duct or the like suspended and supported becomes unsteady.
In particular, in the case where a cylindrical body made of a flexible member having flexibility is used as the air conditioning equipment, when the air conditioning equipment fluctuates due to the atmospheric pressure at the place where the air conditioning equipment is installed, this is used. The hanging cart does not exhibit unstable behavior on the hanger rail, and the supporting state of the lightweight air conditioning equipment can be stabilized. As a result, it is possible to reduce the material cost for the tunnel air conditioner and to minimize the increase in rigidity on the side supporting the air conditioner, thereby preventing an increase in cost.
[0019]
According to the second aspect of the present invention, both the lifting of the wheels and the inclination of the bogie are prevented by the piece forming the locking portion, so that the direction of the bogie can be changed without requiring a special bogie holding mechanism or the like. It is possible to maintain a state in which it can move smoothly on the rail, and thus, even if the air-conditioning device suspended and supported by the bogie is violated, a stable configuration can be maintained with a simple configuration. As a result, it is possible to suppress an increase in cost required for a configuration for preventing the behavior of the bogie from becoming unstable.
[Brief description of the drawings]
FIG. 1 is a diagram showing a main configuration of a tunnel air conditioner support device according to an example for describing an embodiment of the present invention.
FIG. 2 is a view for explaining a configuration of a driving bogie, which is one of the bogies used in the main configuration shown in FIG.
FIG. 3 is a front view showing the configuration of the drive cart shown in FIG. 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air conditioner support device for tunnel 2 Hanger rail 3 Cart 3A Drive truck 3A1 Side plate 3A4 Wheel 3A6 Pin 3A10 meshing with rack Bent upper surface 3B on side plate 3D driven truck 6 Support bracket 7 Rack 8 Motor 11 One of the air conditioners for tunnel A certain dust discharge duct 12 A wire 13 which is a member for suspending and supporting the dust discharge duct

Claims (2)

A device for suspending and supporting air conditioning equipment such as a dust discharge duct in a tunnel,
A hanger rail provided on the ceiling in the tunnel,
A bogie having wheels that can roll on the hanger rail,
Suspension support members that are hung on the cart and hung around the air conditioning equipment,
An air-conditioning device comprising a flexible tubular member made of a flexible member having flexibility,
An air-conditioning equipment support device for a tunnel, wherein the guide rail is provided with a locking portion for preventing the wheel from floating above the wheel of the bogie. The air conditioner support device for a tunnel according to claim 1,
The air-conditioning equipment support device for a tunnel, wherein the locking portion is configured by a piece having a projection length corresponding to at least a width of the wheel.

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