JPH0368609B2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention provides anti-snow rings installed at predetermined intervals on electric wires to prevent the spread of snow that has fallen and frozen on electric wires installed between steel towers. The present invention relates to a mounting method and a mounting device.

(Prior Art) This type of anti-snow ring generally connects one end of a pair of synthetic resin semicircular ring pieces R1 so that the other end can be opened and closed, as shown in FIGS. 9a and 9b. The other end of the ring piece R1 is provided with a protrusion R2 (on one side) and a recess R3 (on the other side) that can be engaged with each other, and locking grooves R4 and R5 are provided on the outer surface of the ring piece R1, respectively.
It consists of a structure formed by By the way, as a conventional ring attachment device, for example, as described in Japanese Patent Laid-Open No. 59-99907, a ring clamping device is integrally assembled with a ring supply mechanism on a drive vehicle that can run on electric wires. After intermittently moving a predetermined distance and stopping, the upper end release ring is sent from the ring supply mechanism to the clamping claw part in the ring clamping device,
The upper end open ring is held by holding claws and raised to the electric wire above the ring, and the holding claws are closed to clamp and fix the ring to the electric wire.

(Problems to be Solved by the Invention) In the conventional ring mounting device described above, ring mounting is performed through three steps: supplying the ring, lifting the ring onto the wire, and clamping the ring. As a result, the operation and mechanism thereof are complicated, the device becomes large, and the state in which the ring is attached becomes unstable. In addition, since the structure is such that the rings are loaded onto a ring supply device and transported, there is a limit to the number of rings that can be loaded, and it is not possible to load and transport all the rings required for one distance (between steel towers) at one time, for example. Therefore, it had to be replenished many times during the work, resulting in poor work efficiency.

This invention has been made in view of the above points, and provides a ring mounting method that has extremely high work efficiency compared to the ring mounting method using conventional devices, can significantly shorten the working time, and can ensure ring mounting. In addition, the structure is simpler than conventional equipment,
The present invention aims to provide a ring attachment device that is stable in operation.

(Means for Solving the Problems) The gist of the method of the present invention for achieving the above-mentioned object is to attach a wire near at least one of the electric wires installed between the steel towers, for example, for one length. Temporarily movably attach a ring connecting body consisting of all the necessary number of independent rings, and intermittently move the ring connecting body a predetermined distance along the electric wire,
One of the rings at the rear end of the ring connector is clamped and fixed to the electric wire, and the gist of the ring attachment device of the present invention for carrying out the attachment method is to make it movable to the electric wire. a ring clamping device disposed on the electric wire at the rear end side of a ring connecting body consisting of a large number of independent rings to be temporarily attached; a ring pressing device disposed on the electric wire at the front end side of the ring connecting body; A ring connecting body, a ring clamping device, and a moving device for moving the pressure device along the electric wire, and the ring clamping device includes a ring guide tube for introducing the rear part of the ring connecting body of the electric wire into the body;
A stopper protrudes into the guide cylinder and locks onto the rear end of the ring connecting body, and a base end is pivotally attached below the ring guide cylinder, and a tip end protrudes into the inside of the guide cylinder from both sides of the upper part of the ring guide cylinder. a pair of ring clamping claws that press and clamp the rear end ring of the ring connecting body to the electric wire;
and a drive mechanism for opening and closing the ring clamping claw, and the ring pressing device is slidably mounted across the electric wire and engages with the ring connecting body to connect the ring between the ring clamping devices. The moving device includes a pair of openable and closable pressing frames that include a pressing member for pressing the body, and the moving device includes a driving wheel that rotates in contact with the electric wire, a driving device for the driving wheel, and a pressing frame for the ring clamping device. A connecting member is provided.

(Function) According to the present invention, a ring linkage consisting of a required number of independent rings temporarily attached to an electric wire near at least one of the steel towers is intermittently moved a predetermined distance along the electric wire, and this movement is stopped. Each time the ring connecting body is stopped on the electric wire, one of the rings at the rear end of the ring connecting body is clamped and fixed to the electric wire.

(Example) Hereinafter, an example of the ring attachment device of the present invention will be described based on the drawings, and a method for attaching the same will be explained.

Fig. 1 is an overall schematic perspective view of the ring mounting device according to the first embodiment, Fig. 2 is a front view of the ring clamping device, and Fig. 3 is a partially omitted perspective view of the ring guide cylinder in a released state. , FIG. 4 is a perspective view of the pressure applying device.

In these figures, reference numeral 1 denotes a snow-resisting ring connected body, which is made up of a large number of the above-mentioned independent rings R, which are oriented in the same direction and temporarily attached to each other so as to be removable with an adhesive or the like.

2 is a ring clamping device, which has the following configuration.
That is, a pair of semi-cylindrical ring guide tubes 3, which are made by dividing a cylindrical body into two, are connected so as to be openable and closable at a lower end hinge joint 4, and a spring (not shown) is interposed between the hinge joints 4 to guide the ring. biasing the cylinder 3 in the releasing direction, and fixing the fixed base plate 5 to the front part of the hinge joint part 4;
The middle part of a fixed plate 6 having a U-shaped opening 6a formed at the upper end is pivotally attached to the lower end of this substrate 5 so as to be able to swing backward, and the fixed plate 6 is erected so as to overlap parallel to the fixed substrate 5. As a result, the ring guide tube 3 is closed. Reference numeral 6b is a hanging hook. In addition,
With the guide tube 3 closed, the inner surface of the guide tube 3 comes into sliding contact with a part of the ring connecting body 1 temporarily attached to the electric wire A. Further, at the rear end of each ring connecting body 1, a ring R that is fixed to the rear end of the ring connecting body 1 and located at the rear end of the ring connecting body 1 is provided.
A stopper 7, through which the rear end ring R passes when it is clamped and fixed to the electric wire A, is provided in a protruding manner, and the guide cylinders 3 on both sides of the upper part immediately in front of the stopper 7 have the tips of ring clamping claws 13, which will be described later. Opening window 8 into which the
has been established. The protrusion dimension of the stopper 7 is such that, while the ring R engages with the stopper 7 in a temporarily attached state, the ring R does not engage with the stopper 7 when it is completely clamped and fixed to the electric wire A. Set it so that it can pass through.

Further, the front end portion 3a of each ring guide tube 3 is bent radially outward so that the temporarily attached ring connecting body 1 can be smoothly introduced into the guide tube 3.

Reference numeral 9 denotes a U-shaped frame body that is U-shaped when viewed from the side, and the upper end of this frame body 9 is fixed to the rear part of the hinge joint 4. A solenoid type cylinder device 10 is disposed within the frame 9 with the cylinder rod 11 facing upward, and a spring 12 is interposed between the upper end of the rod 11 and the hinge joint 4, and the rod 11 is moved by this interposed spring 12. Forced upward.

Reference numeral 13 denotes a pair of approximately J-shaped ring clamping claws, and the middle part of each clamping claw 13 is connected to the hinge joint part 4 in the U-shaped frame body 9.
The proximal end of each clamping pawl 13 is pivotally connected to the other end of a pair of rings 14 whose one end is pivotally connected to the upper end of the rod 11, and the cylinder device 10 By moving the cylinder rod 11 up and down, the tip of each clamping claw 13 is opened and closed.

15 is a limit switch, its contact terminal 15
A is disposed so as to face the upper end of the rod 11 inside the U-shaped frame body 9, and detects whether the rod 11 has been lowered, in other words, whether the clamping claw 13 has been closed.

Reference numeral 16 denotes a socket for connecting a power cable, etc., and this socket 16 is mounted on a base 17 protruding forward from an intermediate position on the front surface of the frame 9. Reference numeral 36 denotes a connecting metal fitting to which one end of a connecting member 35, which will be described later, is pivotally connected.

Next, reference numeral 18 denotes a pressure mounting of the ring connecting body 1, and a pair of U-shaped pressing frames 19 are connected at the upper end by a hinge joint 20 so that the lower end can be opened and closed, and is made of a hard elastic material or the like. It has a structure in which a pair of pressing members 21 having semicircular grooves 21a corresponding to the electric wires A on opposite sides thereof are disposed in the upper part of the pressing frame 19. Further, a pressing force adjusting plate 22 is interposed between one pressing member 21 and the pressing frame 19, and a nut 24 is screwed into a bolt 23 whose one end is connected to the adjusting plate 22.
By rotating in a specific direction, the pressing force of the pressing member 21 acting on the electric wire A is adjusted, and the electric wire A
The load when the pressure applying device 18 moves along is determined. Reference numeral 25 denotes a known automatic locking device, which is provided between the lower ends of each pressing frame 19. Furthermore, 26 is a guide hole for cables, tow ropes, etc.

Next, 27 is a self-propelled moving device, and a pair of drive wheels 29 rotate on the electric wire A between a pair of mounting members 28.
A drive device 31 is mounted in a box-shaped device main body 30 that is rotatably arranged and suspended downward from both ends of the mounting member 28, and the drive device 31 and each drive wheel 29 are connected to a torque transmitting device such as a chain 31a. It has a structure in which the drive wheels 29 are connected by members and driven by the drive device 31.

Further, the upper end of the device main body 30 is removably attached to one of the mounting members 28, and with the drive wheel 29 placed on the electric wire A so as to straddle this, the upper end of the device main body 30 is attached to one of the mounting members 28. It is adapted to be attached to the member 28. 32 is an encoder for measuring the moving distance of the moving device 27;
2 is disposed within the device main body 30 between the drive wheels 29 so as to be rotatable in contact with the electric wire A. Reference numeral 33 denotes a control device disposed in the upper part of the device main body 30, which controls driving and stopping of the drive wheel 29 and opening/closing operations of the clamping claws 13 of the ring clamping device 2, and includes a timer (not shown). ), etc., and issues control commands for various operations at small time differences based on the detection of the end of each operation by the encoder 32 and limit switch 15. 3
4 is a battery as a power source, which is mounted inside the main body 30 of the device.

Reference numeral 35 denotes a connecting member for connecting the moving device 27 and the ring clamping device 2, and one end of this connecting member 35 is rotatably pivoted to the connecting fitting 36 of the ring clamping device 2, as described above. The other end is removably connected to a pin member 37 attached to the center of the front end of the moving device 27 via an engagement piece 35a.

Next, a ring attaching method of the present invention using each device of the above-described embodiments will be explained. In advance, near one of the towers of the electric wire A to which the ring R is to be attached, for example, connect the ring connecting body 1 in which the required number of independent rings R are connected for one length (between the towers) to the electric wire A.
Insert it from below and hold it loosely to temporarily attach it so that it can be moved. In this state, a certain distance is provided at the upper end of the ring connecting body 1. In addition, in parallel with or prior to the temporary installation work of the ring connecting body 1, the ring clamping device 2 is moved to the electric wire A at the rear end of the ring connecting body 1, and the ring clamping device 2 is moved to the electric wire A at the rear end. respectively, and both devices 2 and 2.
7 are connected by a connecting member 35. Then, a pressure device 18 is attached to the electric wire A on the front end side of the ring connecting body 1.

When the moving device 27 starts running in this state, the ring clamping device 2 is pushed forward via the connecting member 35 and moves forward, and the rear part of the ring connecting body 1 is introduced into the ring guide tube 3. The rear end of the ring connecting body 1 is engaged with the stopper 7, and the ring connecting body 1 is also pushed forward together with the ring clamping device 2. When the ring connecting body 1 is used in forward motion, the front end of the ring connecting body 1 comes into contact with the pressure device 18 attached to the electric wire A immediately in front of it, and the ring connecting body 1 is connected to the pressure device and the ring guide tube 3 at the rear. Since it is held between the rear end stoppers 7 and the cross-sectional shape of the inner surface of the ring guide cylinder 3 is similar to the cross-sectional shape of the ring R in the temporarily attached state, the orientation of each independent ring R of the ring connecting body 1 is fixed. are arranged in the state of In this way, when the moving device 27 pushes the pressure device 18, the ring connecting body 1, and the ring clamping device 2 and moves a predetermined distance (the attachment interval of the ring R to the electric wire A), the moving distance is detected by the encoder 32, and the control device 33
The driving of the drive wheel 29 is stopped through the ring clamping device 2, and then, after a short period of time, current flows through the solenoid type cylinder device 10 of the ring clamping device 2, and the rod 11 is connected to the spring 1.
2, the ring clamping claw 13 is closed, and its tip enters into the guide cylinder 3 through the opening window 8, clamping and fixing the ring R at the rear end of the ring connecting body 1 to the electric wire A ( (See Figure 8).

When the rear end ring R is clamped and fixed in this manner, the outer diameter is reduced, so that the engagement with the stopper 7 is released, and the stopper 7 can pass through. At this time, the limit switch 15 detects that the rod 11 is lowered and the ring clamping claw 13 is closed, and a signal is sent to the control device 33. Subsequently, after a short period of time, driving of the drive wheels 29 is started via the control device 33, and the moving device 27 moves a predetermined distance.
As a result of this movement, the stopper engages the ring R immediately adjacent to the rear end ring clamped and fixed to the electric wire A, and the ring connecting body 1 is separated from the rear end ring R. The above-described series of operations is repeated, and as shown in FIG. 1, the ring connecting body 1 is moved a predetermined distance along the electric wire A, and the rear ring R is attached to the electric wire A at regular intervals. go.
The ring installation method described above shows the case where rings are installed at equal intervals from one steel tower to the other, but it is also possible to install rings from both towers to the center of the wire at the same time. I can go.

Next, FIG. 6 is an overall perspective view showing another embodiment, and the difference from the above embodiment is that the moving device 2
7, instead of pushing the ring clamping device 2, ring connecting body 1, and pressure device 18 forward, the ring clamping device 2, ring connecting body 1, and pressure device 18 are towed and moved forward. That's true. Therefore, instead of the rigid connecting member 35, a connecting member 35' such as a chain or a rope is used. In addition,
In the figures, members common to those in the previous embodiment are represented using the same reference numerals.

Further, FIGS. 7 and 8 show a manually operated embodiment, and in both figures, 2' is a ring clamping device;
This ring clamping device 2' is provided with a ring guide cylinder 3 having the same structure as that of the previous embodiment at the upper part of the inverted J-shaped suspension frame 9'.
, cylinder device 10, etc. are arranged in reverse directions. A cylinder device 10 is installed at the lower part of the suspension frame 9'.
A battery 34 is installed as a driving power source. Therefore, in the case of the present device 2', the ring connecting body 1 is placed in the opposite direction to the electric wire A as in the previous embodiment.
That is, the ring R is temporarily attached to the wire A with the opening facing downward, but basically the ring R is attached to the electric wire A in the same manner as in the embodiment described above. Further, the intermittent movement of the device 2' at predetermined distances is similar to the above embodiment, and the self-propelled moving device 2'
7 can be used, but normally, one end of a towing rope (not shown) is attached to the device 2', and the operator moves the cylinder device 10 by a predetermined distance along the electric wire A. The ring R is attached to the electric wire A by remote control. Note that in both figures, members common to those in the above embodiment are indicated using the same reference numerals (effect). It produces an effect like.

(1) The number of rings required to install the wire is temporarily attached to the wire, and the rings are clamped and fixed while being moved, so there is no need to replenish rings during work as in the conventional method, improving work efficiency. It is possible to reduce the work time by increasing the efficiency.

(2) Since one ring is clamped and fixed from the ring connector that is temporarily attached to the wire,
The ring can be fixed simply by opening and closing the ring clamping claws. Therefore, compared to conventional devices, the ring clamping process is simpler and simpler, improving work efficiency, and the structure of the mounting device can also be simplified. In addition to being small and lightweight and inexpensive, there is no malfunction, and the ring can be attached to the wire reliably and stably.

(3) Since the required number of ring connectors are moved while temporarily attached to the electric wire, the load on the moving device is small and the driving force can be reduced, so running costs are low and economical.

(4) The attachment device of the first embodiment can reliably attach the ring to electric wires near the steel tower when the ring is attached in one span, and the attachment device of the third embodiment is portable. This has the advantage that when a damper, a connecting sleeve, etc. are attached to the wire, the device can be easily removed from the wire, the obstruction can be crossed, and the ring installation operation can be continued again.

[Brief explanation of drawings]

Fig. 1 is an overall schematic front view of a ring mounting device showing a first embodiment of the present invention. Fig. 2 is a front view of a ring clamping device, and Fig. 3 shows a state in which the ring guide tube is released, with some parts omitted. FIG. 4 is a perspective view of the pressure applying device, FIG. 5 is an explanatory diagram showing how the ring is attached to the electric wire, and FIG. 6 is an overall working state in which the ring attachment device of the second embodiment is attached to the electric wire. 7 is a side view of the ring attachment device of the third embodiment, FIG. 8 is a front view thereof, FIG. 9a is a front view of the anti-snow ring, and FIG. 9b is a side view of the ring attachment device of the third embodiment. It is a sectional view taken along the line X-X. 1... Ring connecting body, 2, 2'... Ring clamping device, 3... Ring guide tube, 7... Stopper,
8... Opening window, 10... Cylinder device, 12...
Spring, 13... Ring clamping device, 18... Pressing device, 19... Pressing frame, 21... Pressing member, 27...
...Moving device, 29... Drive wheel, 31... Drive device, 35... Connection member, R... Ring, A... Electric wire.

Claims (1)

[Claims] 1. A ring connecting body consisting of a required number of independent rings is temporarily movably attached to the electric wire near at least one of the electric wires installed between the steel towers, and the ring connecting body is attached to the electric wire near at least one of the steel towers. 1. A method for attaching a snow-resistant ring for electric wires, which comprises clamping and fixing one ring at the rear end of a ring connecting body to an electric wire while intermittently moving a predetermined distance along the wire. 2. A ring clamping device arranged on the electric wire at the rear end side of a ring connecting body consisting of the required number of independent rings movably temporarily attached to the electric wire, and a ring clamping device placed on the electric wire at the front end side of the ring connecting body. and a moving device that moves the ring connecting body, the ring clamping device, and the pressing device along the electric wire, and the ring clamping device introduces the rear part of the ring connecting body of the electric wire into the body. a ring guide tube, a stopper that protrudes inside the guide tube and locks to the rear end of the ring connecting body; A pair of ring clamping claws that enter the inside of the guide cylinder to press and clamp the rear end ring of the ring connecting body to the electric wire, and a drive mechanism for opening and closing the ring clamping claws are provided. The pressure device is equipped with a pair of openable and closable pressing frames that are slidably mounted across the electric wire and have internal pressure members that engage with the ring connector and apply pressure to the ring connector between the ring clamping devices. Attaching the anti-snow ring for electric wires, wherein the moving device includes a drive wheel that rotates in contact with the electric wire, a drive device for the drive wheel, and a connecting member to the ring clamping device. Device.