JPH0428885Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a strand guiding device for constructing suspension bridge cables using the air spinning method.

[Prior Art] In the construction of suspension bridges, there is an air spinning method as one of the methods for installing cables.

The outline of such an air spinning method is explained with reference to FIG. 6. A wire coil 1 manufactured at a factory is transported to the site and attached to an uncoiler 2, and the uncoiled wire is unwound using the uncoiler 2. (Usually, a galvanized steel wire with a diameter of 5 mm) 3 is wound up neatly on a reel 5 while applying tension with a tensioning device 4, and the strand wire 3 wound on the reel 5 is further wound with a tension adjusting device 6. The cable is fed out while adjusting the tension, and is spanned between anchorages 8, 8 on both sides via a tower 7. Incidentally, the strands of wire 3 fed out from the reel 5 are sequentially connected by special joints. The laying of the bare wire 3 is carried out by a hauling system.

That is, the strand guiding device 10 is fixed to the loop of the holing rope 9 that is passed between the anchorages 8, 8, and the wire guiding device 10 is connected to the spinning wheel 11 of the strand guiding device 10 from the reel 5 through the guide roller 12 on the anchorage 8. The strand wire 3 that has been fed out is wound around the wire, and its tip is locked to the spray saddle 13 on the wire feeding side. In this state, the driving device 14 is driven to reciprocate the hauling rope 9, and the strand guiding device 10 is moved back and forth, thereby transporting the pulled out strand wire 3 from the reel 5 to the strand guiding device 11. The guide member 16 on the cat walk 15 is separated into the live wire 3a and the dead wire 3b that has passed through the strand guiding device 10.
Next, a bundle of bare wires 3 made up of a required amount of dead wires 3b is set as one strand 3', and the necessary number of strands 3' to constitute a cable are constructed. Note that 17 is a tower saddle and 18 is a strand shoe.

[Problems to be solved by the invention] However, as shown in FIG. Since the structure is equipped with a spinning wheel 11, the live wire 3a and the dead wire 3b are placed in the same vertical plane when drawn out onto the cat walk 15. In order to separate the guide members 20 from the side guides 20, a worker must be assigned to each guide member 16, and there is a problem in that the bare wires 3 tend to come loose.

In view of these circumstances, the present invention has been developed to ensure the sorting of strands of wire and to prevent derailment.

[Means for Solving the Problems] In order to achieve the above object, the present invention fixes a carrier frame to a hauling rope that moves in the direction of the bridge axis, and attaches a tilting mechanism to the carrier frame arranged in the direction of the bridge axis. A wheel frame that supports a spinning wheel via a shaft is mounted so as to be tiltable with respect to a vertical plane in the axial direction of the bridge, and is provided with means for tilting the wheel frame.

[Operation] By operating the tilting means, the wheel frame is tilted about the tilting axis, and the inclination angle of the spinning wheel with respect to the vertical plane in the bridge axis direction is changed. Therefore, by selecting the inclination angle of the spinning wheel depending on the outbound and return trips, the strands of wire can be reliably sorted and derailment can be prevented.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, a carrier frame 22 is fixed to the hauling rope 9 via a hanging member 21, and a wheel frame 23 supporting the spinning wheel 11 is attached to the carrier frame 22 on the bridge shaft. The wheel frame 2 is mounted so as to be tiltable using a tilting shaft 24 arranged in the direction of the wheel frame 2.
The upper end of the hoisting cable 25, whose lower end is connected to the appropriate position of 3, is connected to a lever block 26 attached to the hauling rope 9, and the above-mentioned tilting is achieved by hoisting the hoisting cable 25 up and down by operating the lever block 26. Axis 2
The spinning wheel 11 is configured to be able to tilt with respect to a vertical plane in the bridge axis direction through the tilting of the wheel frame 23 about the wheel frame 23, and furthermore, a blade member 2 is attached to the end of the tilting shaft 24 on the side opposite to the wheel frame.
7 is fixedly installed, and a plurality of position adjustment holes 2 are provided at circumferential positions around the tilting axis 24 of the plate material 27.
A bracket 30 is provided with a lock hole 29 that selectively corresponds to one of the position adjustment holes 28, and extends over the carrier frame 22, and a lock pin 3 is inserted into the holes 28 and 29.
1.

With such a configuration, when performing wire hanging work, the hoisting cable 25 is hoisted up by operating the lever block 26, and the wheel frame 23 is hoisted up.
is tilted upward about the tilting shaft 24, and the spinning wheel 11 is moved so that its upper part is connected to the side guide 20.
The upper and lower parts of the strand shaping guide 19
The lock pins 31 are inserted into the required position adjustment holes 28 of the plate material 27 and the lock holes 29 of the bracket 30 and fixed. In this state, as shown in FIGS. 1 and 2, the strand wire 3 is moved to the spinning wheel 11
After winding it in a loop shape, by driving the driving device 14 in the forward direction, the strand wire 3 is automatically horizontally separated into a live wire 3a and a dead wire 3b by the tilting spinning wheel 11. The live wire 3a is placed on the side guide 20, and the dead wire 3b is placed on the spinning wheel 1.
1 and housed in the strand shaping guide 19. At this time, the spinning wheel 11
As described above, since the wire has the inclination angle, it is possible to smoothly separate the live wire 3a and dead wire 3b without detaching the wire.

On the other hand, during forward work, the spinning wheel 11 is tilted in the opposite direction as shown in FIGS. 3 and 4, and the drive device 14 is driven in the backward direction. By doing so, the live wires 3a on the side guides 20 are automatically guided into the strand shaping guide 19 and can be bundled as dead wires 3b' in the same way as the already bundled dead wires 3b.

FIG. 5 shows another embodiment of the present invention, in which a gear 32 is attached to the opposite end of the tilting shaft 24 to the wheel frame.
At the same time as attaching the gear 3 that meshes with the gear 32.
3, an operating handle 35 is attached to the shaft 34 of the gear 33, the tilting of the spinning wheel 11 can be adjusted by rotating the handle 35, and a lock bolt 36 is provided to lock the rotation of the shaft 34. It was established.

In the case of this method, compared to the above embodiment, the tilting position of the spinning wheel 11 can be selected steplessly, and the setup (tools) during work can be simplified.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

[Effects of the invention] As explained above, according to the strand guiding device of the present invention, the spinning wheel can be tilted with respect to the vertical plane in the bridge axis direction. Wires can be automatically pulled out and sorted without having to be removed from the rope.
Moreover, excellent effects can be achieved with a simple structure.

[Brief explanation of drawings]

Figure 1 is a front view of the device of the present invention, and Figure 2 is a front view of the device of the present invention.
FIG. 3 is a front view showing a different state from FIG. 1, FIG. 4 is a side view of FIG. 3, FIG. 5 is an explanatory diagram of another embodiment of the present invention, and FIG. The figure is an explanatory diagram of suspension bridge cable construction work using the air spinning method, and FIG. 7 is an explanatory diagram of a conventional strand guiding device. 9 is a hauling rope, 22 is a carrier frame, 23 is a wheel frame, 24 is a tilting shaft, 2
5 indicates a hoisting cable, and 26 indicates a lever block.

Claims (1)

[Scope of utility model registration request] A carrier frame is fixed to a hauling rope that moves in the direction of the bridge axis, and a wheel frame that supports a spinning wheel is tilted to the carrier frame with respect to a vertical plane in the direction of the bridge axis via a tilting shaft arranged in the direction of the bridge axis. A strand guiding device for constructing a suspension bridge cable using an air spinning method, characterized in that it is provided with means for tilting the wheel frame.