JP3558240B2 - Wire transfer equipment for on-premise extension lines - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electric wire carrier used for laying a long power cable or the like in a wiring structure provided underground, for example.
[0002]
[Prior art]
Conventionally, in wire drawing work, a plurality of guide rollers are installed along a wire drawing route, a crawler-type traction device is provided at a required portion of the wire drawing route, and the wire is drawn out on the guide roller, and a traction device is provided. A method of transporting the electric wire to a predetermined position by using the method is adopted.
[0003]
[Problems to be solved by the invention]
In the conventional wire drawing method, it is necessary to pay attention to the synchronous operation of each traction device during the wire drawing so that the wire is not damaged by excessive force such as bending of the wire during wire drawing. Therefore, a monitoring staff during operation is required.
Therefore, an object of the present invention is to provide an electric wire transport device for in-house extension wire which is excellent in terms of construction period and economy, does not apply excessive force to the wire during the extension work, and is relatively easy to monitor. I have.
[0004]
[Means for Solving the Problems]
In the present invention, in order to solve the above-mentioned problem, a hanger rail 1 made of a steel material having a substantially H-shaped cross section is laid on the ceiling of the premises, and a tow truck 2 is mounted on the hanger rail 1, and an electric wire W To be transported. The towing vehicle 2 includes at least a pair of front and rear traveling wheels 7 that drive and travel on a lower flange of the hanger rail 1, at least a pair of guide wheels 8 that horizontally roll so as to sandwich the hanger rail 1 from both sides, and a lower flange. To connect the connecting rods 5 with the magnet chains 22 and 23 wound around the sprockets so as to move while adsorbing on the lower surface, the drive motors 24 and 25 for routing the magnet chains 22 and 23 and the traveling wheels 7. And a pair of connecting portions 30 before and after the above. Further, a plurality of carriers 3 are attached to the hanger rail 1, and the wires W are suspended and transported along the way of extension. The carrier 3 includes at least a pair of running rollers 33 that roll on the lower flange of the hanger rail 1, a hook portion 37 that hangs a suspending member that suspends the electric wire W, and a pair of front and rear portions for connecting the connecting rod 5. A coupling portion 38 is provided. Then, the connecting rods 5 connect between the carriers 3 or between the carrier 3 and the towing truck 2. Both ends of the connecting rod 5 are connected to each connecting portion.
An electric wire W is hung on each carrier 3, and the carrier 3 is pulled or pushed by the towing truck 2 to travel along the hanger rail 1 in the premises to a predetermined electric wire laying position.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic front view of a transport device which is the basis of the present invention, FIG. 2 is a front view of a towing truck, FIG. 3 is a side view of the towing truck, FIG. 4 is a plan view of the towing truck, and FIG. 6 is a sectional view taken along the line VI-VI in FIG. 2, FIG. 7 is a front view of the carrier, FIG. 8 is a side view of the carrier, and FIG. 9 is a front view of the towing vehicle of the present invention.
In FIG. 1, a hanger rail 1 made of a steel material having a substantially H-shaped cross section is laid on a ceiling in an underground wiring structure T. A towing vehicle 2 is attached to the hanger rail 1 so as to be able to run along the hanger rail 1, and a plurality of carriers 3 are attached so as to be towed by the towing vehicle 2 and run. A suspending member 4 for suspending the electric wire W is hung on the carrier 3. The connecting rod 5 connects between the towing vehicle 2 and the carrier 3 and between the carriers 3.
[0006]
As shown in FIG. 2 to FIG. 5 and FIG. 9, the towing vehicle 2 includes a pair of frame plates 6 and 6 which are arranged in parallel with a space capable of receiving the hanger rail 1 therebetween. Inside the frame plate 6, a pair of front and rear traveling wheels 7, 7 driving and traveling on the lower flange of the hanger rail 1, and a pair of front and rear guide wheels rolling horizontally so as to sandwich the web of the hanger rail 1 from both sides. 8, 8 are attached. Further, a lower guide wheel 9 is attached between the frame plates 6 and 6 below the traveling wheel 7. The lower guide wheel 9 is arranged so that the lower flange of the hanger rail 1 is sandwiched between the lower guide wheel 9 and the traveling wheel 7, and rolls in contact with the lower surface of the lower flange.
[0007]
Shafts 10 and 11 are provided before and after the frame plates 6 and 6, respectively. As shown in FIG. 5, a pair of cylindrical shafts 12, 12 are inserted into the shaft 10 from both sides so as to be relatively rotatable. Drive sprockets 13 and 14 are fixed to the outer end of the cylindrical shaft 12, respectively, and passive sprockets 17 and 18 are fixed to the inner end, respectively. Therefore, the driving sprockets 13 and 14 and the passive sprockets 17 and 18 rotate relative to the shaft 10 independently of each other. As shown in FIG. 6, a pair of cylindrical shafts 19, 19 are inserted into the shaft 11 from both sides for relative rotation. Passive sprockets 20, 21 are fixed to the inner end of the cylindrical shaft 19, respectively. A magnet chain 22 is wound between the sprockets 17 and 20, and a magnet chain 23 is wound between the sprockets 18 and 21. The magnet chains 22 and 23 have a large number of magnet pieces 22a and 23a, respectively, that can be attracted to the lower surface of the lower flange of the hanger rail 1. The drive motors 24 and 25 with reduction gears are fixed to the lower part of the frame plate 6. Sprockets 26 and 27 are fixed to output shafts of the drive motors 24 and 25, respectively. A chain 28 is looped between the sprocket 26 and the sprocket 13, and a chain 29 is looped between the sprocket 27 and the sprocket 14. Accordingly, the magnet chain 22 is routed by the motor 24 and the magnet chain 23 is routed by the motor 25. In the present invention, as shown in FIG. 9, the traveling wheels 7, 7 are wound around the chains 28, 29 around the sprockets 4, 4 of the traveling wheels, respectively. It rotates with driving force.
[0008]
A pair of left and right tabs 30 are provided at the front and rear of the lower portions of the frame plates 6 and 6 as connecting portions for connecting the connecting rods 5, and one ends of the connecting rods 5 are self-connected.
[0009]
As shown in FIGS. 3 and 4, the current collector 31 is provided so as to protrude from one frame plate 6 to the side, and the power supply device 31 is stretched along the hanger rail 1 as the towing vehicle 2 travels. The electric power is supplied to the motors 24 and 25 by sliding contact with the electric wire 32.
[0010]
As shown in FIGS. 7 and 8, the carrier 3 includes a pair of left and right running rollers 33 that roll on the lower flange of the hanger rail 1, a pair of left and right guide rollers 34 that contact the left and right side surfaces of the lower flange, and a lower roller. Lower guide rollers 35 that are in rolling contact with the lower surface of the flange are provided at the front and rear, respectively. Further, a hook portion 37 for hanging the sling 4, which is a hanging portion for hanging the electric wire W, and a pair of front and rear connecting portions 38 for connecting the connecting rod 5 are provided. The connecting rods 5 connect the carriers 3 to each other or between the carrier 3 and the towing truck 2 so as to be freely bent. In these basic structures, in the present invention, as shown in FIG. 9, the traveling wheels 7, 7 can be rotated by the driving force of drive motors 24, 25 described later.
[0011]
Thus, for example, a required number of towing trucks 2 are arranged at the beginning, the end, and the middle portion, and a large number of carriers 3 are arranged between the towing trucks 2 and 2 and connected to each other by the connecting rods 5 to substantially connect the electric wires. A transport device having a length (for example, 1.5 m) equal to one pass of W is formed. The electric wire W is hung on this transport device, towed by the tow truck 2, and transported to the destination. The traction cart 2 conveys the electric wire W by pulling or pushing the carrier 3 by linear force by magnetic friction force while attracting the magnet chains 22 and 23 to the lower surface of the lower flange of the hanger rail 1. Even if the hanger rail 1 has a vertical gradient, the electric wire W is transported smoothly without slipping. Since the left and right magnet chains 22 and 23 are driven by separate drive motors 24 and 25, respectively, even if a difference occurs between the left and right magnet chains 22 and 23 in the horizontal bending part of the hanger rail 1, for example, the left and right magnet chains 22 and 23 are smoothly moved. proceed.
[0012]
In the tow truck 2 of the present invention shown in FIG. 9, the traveling wheels 7 are fixed to the shaft 40. The shaft 40 is rotatably supported by the frame plate 6 and protrudes outward through the shaft plate 6. A sprocket 41 is fixed to an outer end of the shaft 40. The sprocket 41 is wound around intermediate portions of chains 28 and 29 that connect the motors 24 and 25 and the magnet chains 22 and 23, respectively. Therefore, the traveling wheels 7, 7 rotate together with the magnet chains 22, 23 by the driving force of the motors 24, 25. The magnet chain facing path that is continuous with the lower flange at the horizontally bent portion of the hanger rail 1 is made of a non-magnetic material. In this case, when the towing vehicle 2 passes through the horizontal bent portion of the hanger rail 1, the magnet chains 22 and 23 are not attracted to the hanger rail 1, and during this time, the vehicle travels with the driving force of the traveling wheel 7. Since the magnet chains 22 and 23 do not stick to the hanger rail 1, the left and right bending traveling is performed smoothly.
[0013]
【The invention's effect】
As described above, in the present invention, the hanger rail 1 made of a steel material having a substantially H-shaped cross section is laid on the ceiling of the premises, the tow truck 2 is attached to the hanger rail 1, and the electric wire W is hung along the hanger rail 1. Lower and transport. The towing vehicle 2 includes at least a pair of front and rear traveling wheels 7 that are driven by driving motors 24 and 25 on a lower flange of the hanger rail 1 and at least a pair of guide wheels that roll horizontally so as to sandwich the hanger rail 1 from both sides. 8, a pair of parallel magnet chains 22 and 23 wound around a sprocket so that the magnet chains 22 and 23 travel individually in parallel while being attracted to the lower surface of the lower flange. Each of the drive motors 24 and 25 and a pair of front and rear connecting portions 30 for connecting the connecting rod 5 are provided. Further, a plurality of carriers 3 are attached to the hanger rail 1, and the wires W are suspended and transported along the way of extension. The carrier 3 includes at least a pair of running rollers 33 that roll on the lower flange of the hanger rail 1, a hook portion 37 that hangs a suspending member that suspends the electric wire W, and a pair of front and rear portions for connecting the connecting rod 5. A coupling portion 38 is provided. Then, the connecting rods 5 connect between the carriers 3 or between the carrier 3 and the towing truck 2. Both ends of the connecting rod 5 are connected to each connecting portion. Since the electric wire W is hung on each carrier 3 and the carrier 3 is pulled or pushed by the trolley 2 to travel the premises along the hanger rail 1 to a predetermined electric wire laying position, it is excellent in construction time and economy, It is possible to provide an electric wire transport device for in-premises extension wire that hardly applies an excessive force to the electric wire during the extension work and that is relatively easy to monitor.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a transport device according to the present invention.
FIG. 2 is a front view of a towing vehicle that is the basis of the present invention.
FIG. 3 is a side view of a towing vehicle as a basis of the present invention.
FIG. 4 is a plan view of a towing vehicle that is the basis of the present invention.
FIG. 5 is a sectional view taken along line VV in FIG. 2;
FIG. 6 is a sectional view taken along the line VI-VI in FIG. 2;
FIG. 7 is a front view of the carrier.
FIG. 8 is a side view of the carrier.
FIG. 9 is a front view of the towing truck according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hanger rail 2 Traction truck 3 Carrier 5 Connecting rod 7 Running wheel 8 Guide wheel 22 Magnet chain 23 Magnet chain 24 Drive motor 25 Drive motor 30 Coupling section 33 Roller 37 Hook section 38 Coupling section W Electric wire

Claims (1)

A hanger rail made of a steel material having a substantially H-shaped cross section laid with the upper flange fixed to the ceiling of the premises,
At least a pair of front and rear traveling wheels that drive and travel on the lower flange of the hanger rail in the extension direction,
At least a pair of left and right guide wheels that are arranged so as to sandwich the hanger rail from both left and right sides in the extension direction and roll horizontally on the left and right side surfaces of the hanger rail,
A pair of parallel magnet chains wrapped around a sprocket so as to travel individually in parallel while adsorbing on the lower surface of the lower flange;
A drive motor for routing each of the magnet chains and running wheels,
A tow truck comprising a pair of front and rear connecting portions for connecting the connecting body,
At least a pair of running rollers rolling on the lower flange of the hanger rail,
A plurality of carriers including a hook portion for hanging a suspending member for suspending the electric wire, and a pair of front and rear coupling portions for coupling the connecting rod,
A plurality of connecting rods, both ends of which are connected to each of the connecting portions to connect between the carriers or between the carrier and the towing truck,
In the horizontal curved portion of the hanger rail, the lower surface of the lower flange or another member that faces the magnet chain continuously to the lower flange is formed of a non-magnetic material that does not attract the magnet chain,
An electric wire conveying device for in-building extension lines, characterized in that a traction truck obtains traction force only in a traveling wheel connected to the drive motor in a horizontal curved portion of a hanger rail.

Images