JPS631533Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wire wrapping device for winding a wire in a spiral manner around an electric wire suspended in the air, such as an overhead power transmission line.

Wire rods are spirally wound around electric wires suspended in the air for various purposes. For example, in overhead power transmission lines, low-Kyuri wires to prevent ice and snow build-up, wires to prevent wind noise, and the like are wound spirally.

As described above, the conventional method for spirally winding a wire into an electric wire is to form the wire into a spiral shape in advance, and then manually attach the wire preformed into a spiral shape to an electric wire suspended in the air. A technique is known in which the wire is wrapped around the wire.

However, in such conventional methods, relatively short preform wires with limited lengths are manually wound around the wires, so it is difficult to wrap the entire length of the wires, especially those with long spans. In cases where winding is carried out in a continuous manner, the work becomes extremely complicated and takes a long time.

The present invention has been devised in view of the above-mentioned points, and it is an object of the present invention to provide a wire-wrapping device for an electric wire that can reliably spirally wind a wire with high efficiency even when the winding span length is long.

Hereinafter, the present invention will be explained based on an embodiment shown in the accompanying drawings.

First, the outline of the wire winding device shown in this embodiment will be explained with reference to FIGS. 1 to 3.

The wire wrapping device shown in this embodiment includes a running frame 1 that runs along the length of an electric wire C that is suspended in the air, such as an overhead power transmission line, and a running frame 1 that is concentrically fitted onto the electric wire C. A rotary tube 2 rotatably supported in the circumferential direction by the traveling frame 1, and a wire W rotatably attached to the outside of the rotary tube 2 and wound around the surface of the electric wire C. A wire rod supply hobbin 3, and a plurality of forming elements rotatably provided on one end surface 2a of the rotary tube 2, and for pulling out the wire rod W from the wire rod supply hobbin 3 and bending it to a diameter smaller than the outer diameter of the electric wire C. roller 4 and
It has a drive mechanism 5 for relative rotation between the traveling frame 1 and the rotary cylinder 2, and a rotation transmission mechanism 6 for transmitting the relative rotation between the two to the plurality of forming rollers 4 to rotate these forming rollers 4. It is structured as follows.

Next, to explain these details, as shown in FIGS. 1, 3, and 4, the traveling frame 1 has one end surface (the end surface on the right side in FIG. 3) that is integrally closed. It is formed into a cylindrical shape,
The other end face is closed by a closing plate 7.

And, on both end surfaces of this running frame 1, there is a
Notches 1a and 1b are formed in the lower side wall, and a notch 1C is formed along the length direction of the traveling frame 1 and continuous with the notches 1a and 1b. These notches 1
By covering the electric wire C with the traveling frame 1 via a, 1b, and 1c, the electric wire C can be inserted along the axis of the traveling frame 1.

Among these notches, a notch 1a located on the end surface that is integrally constructed with the running frame 1 is formed by a filling plate 9, leaving a hole 8 through which the electric wire C is inserted, as shown in FIG. 4A. The filling plate 9 is removably attached to the end face with bolts 11 through connection plates 10.
Further, at the end of the filling plate 9 on the hole 8 side (that is, the end near the axial line of the traveling frame 1), a portion protrudes outward from the end surface and is concentric with the axial line of the traveling frame 1. A part of the provided gear _G1 is formed. Therefore, when the filling plate 9 is attached to the traveling frame 1, the gear _G1 is formed into a complete shape.

Moreover, as shown in FIG. 3, inside the running frame 1, the running frame is placed on an electric wire C passing through the running frame 1, and is rolled on the electric wire C. While supporting the weight of 1, the traveling frame 1
Two running rollers 12 and 13 guide the running of the
is rotatably attached via support shafts 14 and 15 provided at intervals in the length direction of the traveling frame 1.

Of these support shafts 14 and 15, the traveling frame 1
As shown in FIGS. 1, 4, and 5, the support shaft 14, which is provided close to the side where the closing plate 7 is provided, penetrates the side wall of the traveling frame 1 and projects to the outside. A bevel gear _G2 is attached to the protruding end of this support shaft 14, and these bevel gears _G2 , the support shaft 14, and the support roller 12 attached to this support shaft 14 rotate integrally. I'm starting to do that.

Furthermore, the support shaft 1 is provided at the outer side of the traveling frame 1.
A rotary shaft 16 that is perpendicular to the support shaft 14 and parallel to the length direction of the traveling frame 1 is connected to the support leg 17 protruding from the outer wall of the traveling frame 1 near the protruding end of the traveling frame 1 . It is rotatably and removably attached. A bevel gear G ₃ meshed with the bevel gear G ₂ attached to the support shaft 14 is integrally attached to one end of the rotating shaft 16.
Furthermore, a gear G ₄ that is rotated integrally with this rotating shaft 16 is attached to the other end.

Further, as shown in FIGS. 3 and 4, on the outer surface of the traveling frame 1, a plurality of support rollers 18 are provided in an annular manner at intervals in the circumferential direction, and the length of the traveling frame 1 is Two rows are provided at intervals in the horizontal direction, and radially contact the inner surface of the rotary cylinder 2 fitted around the traveling frame 1,
The distance between the traveling frame 1 and the rotary tube 2 is kept constant to hold them concentrically, and the rotary tube 2 is smoothly rotated in the circumferential direction.

Furthermore, at the outer side of the traveling frame 1, the support shaft 1
4, as shown in FIGS. 3 and 5, there is an electric motor 2 equipped with a storage battery 19 and a gear _G5 .
0, and a drive section 21, which also serves as a balance weight for preventing rotation of the traveling frame 1 and controlling its posture, is detachably attached.

As shown in FIGS. 1 and 3, the rotary cylinder 2 is formed into a cylindrical shape with one end surface 2a closed, and as shown in FIGS. It is divided into two parts, and is connected by a hinge 22 at one side mating surface 2b, and detachably connected by a pin 23 at the other side mating surface 2c. Therefore, by removing the pin 23, the rotary cylinder 2 can be expanded in directions away from each other with the hinge 22 as the center of rotation.

Furthermore, four sets of two mounting legs 24 are radially provided on the outer surface of the rotary cylinder 2, and each set of two mounting legs 24 is spaced apart in the length direction.
In between, a wire supply hobbin 3 on which a wire W to be wound around the electric wire C is wound is rotatably attached along the length direction of the rotary tube 2. A gear G ₆ is formed on the outer circumferential surface of the rotating tube 2 near the open end surface, and when the rotating tube 2 is fitted onto the traveling frame 1 and the wire winding device is assembled, The gears G ₄ and G ₅ are adapted to mesh. In this embodiment, the drive mechanism 5 is constituted by the drive section 21 and the gear _G6 .

Furthermore, one closed end surface 2a of the rotary cylinder 2
is located at its center, that is, at the axial center of the rotating cylinder 2,
A hole 25 is formed through which the electric wire C is inserted, and the rotating cylinder is formed into a substantially conical shape such that its central portion protrudes outward in the length direction of the rotary cylinder, and one end surface 2a of the conical shape , the forming roller 4 is provided.

As shown in FIGS. 2 and 6, the forming rollers 4 are provided in a plurality of rows in a radial direction from the hole 25 toward the mounting leg 24, and each forming roller 4 has a diameter smaller than the outer diameter of the electric wire C. The forming roller 4 adjacent to the hole 25 is formed to have an even smaller diameter than the other forming rollers 4, and the forming roller 4 adjacent to the hole 25 is formed to have an even smaller diameter than the other forming rollers 4, and the rotation direction of the rotary cylinder 2 is different from the arrangement direction of the other forming rollers 4. It is located offset to the rear of the

The rotating shafts 4a of these forming rollers 4 penetrate the one end surface 2a and protrude into the rotating tube 2. Gears _G7 are provided on the protruding portions of the rotating shafts 4a, respectively, so that they are mutually connected. is engaged with. Also, one of these gears _G7 (in this embodiment, the gear closer to the axis) is connected to the gear G provided on the rotating barrel 2 when the rotating barrel 2 is set on the traveling frame 1. ₁ , and these gears _G1 and _G7 constitute the rotation transmission mechanism 6. Therefore,
When the rotary cylinder 2 is rotated relative to the traveling frame 1 in the direction of arrow A in FIG. 7, each forming roller 4 is rotated in the direction of arrow B in FIG. 6 by the rotation transmission mechanism 6. As shown in the figure, the wire rod W placed on each forming roller 4 is fed toward the axial center line, that is, toward the electric wire C while being curved.

On the other hand, pulleys indicated by reference numerals 26 and 27 in the figure are provided on the peripheral edge of the rotary cylinder 2 and the mounting leg 24, and are adapted to guide the wire W from the wire supply hobbin 3 to the forming roller 4. Further, in FIGS. 3 and 5, the reference numeral 28 is a guide roller that holds the gear _G6 from both sides.
It is rotatably supported by a plurality of support arms 29 that are removably attached to the outer surface of the traveling frame 1 at intervals in the circumferential direction, and as described above, by sandwiching the gear _G6 , The traveling frame 1 and the rotary cylinder 2 are positioned in the longitudinal direction.

Next, a case will be described in which the wire rod W is spirally wound around the electric wire C in the installed state using the wire rod winding device of this embodiment having the above-described configuration.

First, the case where the wire winding device is set on the electric wire C will be explained as follows.

The running frame 1 is placed above the electric wire C, and the notches 1a to 1c of the running frame 1 are aligned with the electric wire C, and then the running frame 1 is lowered and inserted into the notches 1a to 1c. The traveling frame 1 is placed on the electric wire C by placing the traveling rollers 12 and 13 on the electric wire C.

At the bottom of the traveling frame 1 placed in this way,
After the driving part 21 is attached and the traveling frame 1 is brought into a stable state, the filling plate 9 is attached to the notch 1a to form the gear _G1 .

Next, the traveling frame 1 assembled as described above
The rotating cylinder 2 to which the wire rod supply hobbin 3 is attached is placed over the outer periphery of the rotary cylinder 2, and the gear _G6 of the rotating cylinder 2 and the gear _G5 of the drive section 21 are meshed with each other, and the gear G1 of the traveling frame 1 and the gear _G1 of the traveling frame 1 are meshed. After meshing with one of the gears _G7 connected to the forming roller 4, the pin 2
3 to fix the rotary tube 2 in a cylindrical shape.

Further, a support arm 2 is provided on the outer surface of the traveling frame 1.
9 is attached, and the gear G ₆ of the rotary cylinder 2 is held between the guide roller 28 attached to the support arm 29.

Through the above operations, the traveling frame 1 and the rotating tube 2 are positioned relative to each other, and the rotating tube 2 is supported by the traveling frame 1 so as to be rotatable in the circumferential direction.

Next, the rotating shaft 16 provided with the bevel gear G ₃ and the gear G ₄ is attached to the support leg 17 of the traveling frame 1, and the bevel gear G ₃ and the gear G ₄ are attached to the support shaft 14.
By meshing with the bevel gear G ₂ attached to the rotating cylinder 2 and the gear G ₆ of the rotating cylinder 2, the rotating cylinder 2, the support shaft 14, and the running roller 12 are interlockably connected.

By the above operations, the wire winding device can be set on the electric wire C.

In order to spirally wind the wire W around the electric wire C using the wire winding device set as described above, first, the wire W wound around the four wire rod supply hobbins 3 is wound around the pulley 27, After being pulled out to the one end surface 2a side of the rotary cylinder 2 via 26, it is hooked onto a plurality of forming rollers 4 in a wavy manner. moreover,
After aligning the draw-out side ends of these wires W and fixing them to the electric wires C using a gripping device 30 or the like, as shown in FIGS. 7 and 8, the drive unit 21
The rotary cylinder 2 may be rotated in the direction of arrow A shown in FIGS. 6 and 7 by using the following steps.

When the rotary cylinder 2 is rotated in this way,
This rotation is transmitted to the running roller 12 by the gears G ₆ , G ₄ , bevel gears G ₃ , G ₂ and the support shaft 14, and the running roller 12 is rotated in the direction of arrow C in FIG. , the wire winding device as a whole is moved in the direction of arrow D in FIG. At the same time, the forming rollers 4 are rotated around the gear G1 of the traveling frame ₁ in the direction of the arrow A, and each of them is rotated in the direction of the arrow B in FIG. The wire rods W are then sent out one after another toward the electric wire C, and are wound helically around the electric wire C, as shown in FIG.

Since the travel of the traveling frame 1 and the rotation of the rotary tube 2 described above are performed in synchronization, the pitch of the wire W wound around the electric wire C is always constant.

Further, the wire rod W is curve-formed by a forming roller 4 so that it has a smaller diameter than the outer diameter of the electric wire C,
In addition, since the wire material W is sequentially sent out and wound by the rotation of the forming roller 4, the force in the stretching direction applied to the wire material W once curved is small, and as a result, the diameter of the wire material W is expanded more than necessary. Connect the wire W to the wire C to prevent it from being damaged.
It can be wrapped tightly around the top.

In the above embodiments, an example has been described in which the wire winding device travels and the rotating tube 2 is rotated by the drive unit 21, but instead of this, the traveling frame 1 may be driven by a separate traction device. It may also be towed. If you use this type of driving method,
By replacing the drive unit 21 with a balance weight, the storage battery 19 and the electric motor 20 can be omitted, and the drive mechanism 5 includes the guide roller 12, the support shaft 14, the bevel gears G ₂ , G ₃ and the gears G ₄ , G _{6 .} replaced by

Further, the setting order of the wire winding device described above is one example, and the present invention is not limited to this example.

The wire wrapping device for electric wires according to the present invention described above has the following excellent effects.

The wire stored in the wire supply bobbin is shaped by a plurality of forming rollers so that it has a helical diameter smaller than the outer diameter of the wire, and is then sent out and wound onto the wire, so that the Continuous winding is possible, and by minimizing the action of pulling force on the curved wire, it is possible to prevent the diameter of the wire from expanding as much as possible. In other words, the wire can be tightly wound onto the electric wire.

Only manual labor at high places is required to assemble the device, and this work can be done using the pillars (steel towers) that support the electric wires as scaffolding.
Therefore, the entire work process becomes much safer and simpler than before.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a plan view, FIG. 2 is a view taken along the line - of FIG. 1, and FIG. 3 is a partially sectional view of - of FIG. Figure 4 shows the running frame, A is a right side view, B is a left side view, and Figure 5 is a partially omitted cross-section taken along the - line in Figure 1. 6 is a detailed view of the forming roller, FIG. 7 is a partially omitted sectional view taken along the line - in FIG. 6, and FIG. 8 is a side view of the gripping device. DESCRIPTION OF SYMBOLS 1... Traveling frame, 2... Rotating tube, 3... Wire supply hobbin, 4... Forming roller, 5... Drive mechanism, 6
...Rotation transmission mechanism, C...Electric wire, W...Wire rod.

Claims (1)

[Scope of utility model registration request] A running frame 1 that runs along electric wires C, a rotary tube 2 rotatably supported by this traveling frame 1 and having a hole 25 for inserting the electric wire C in the center, and a rotating tube 2 that is rotatably mounted on the outside of this rotating tube 2. a wire supply hobbin 3 that is attached to and supplies a wire W to be wound around the surface of the electric wire C; A plurality of forming rollers 4 wrap the electric wire C while bending it into a small diameter, a drive mechanism 5 that rotates the rotary tube 2, and a drive mechanism 5 that transmits the rotation of the rotary tube 2 to the plurality of forming rollers 4 to form these. A wire wrapping device for electric wires, which has a rotation transmission mechanism 6 that rotates a roller 4.