JPS614408A - Wire extending warehouse and main gate switching device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a metal wheel device used to extend a plurality of parallel S-wires with low tension.

[Conventional technology]

In recent years, power transmission lines have become increasingly larger in diameter, and as a result, wire extension work has come to require high tension.

However, when wire extension work is performed under high tension, the danger of the work increases.

In addition, the machinery and equipment used for wire extension will become larger, resulting in a significant increase in construction costs. Furthermore, the area for construction work to install them has to be expanded, and securing that area becomes a bottleneck. In other words, it is desirable to extend the line with low tension, but in that case, the catenary has reduced slack, which poses a danger to roads, houses, etc. within the section. Safety is ensured by constructing a dowel under the transmission line for both high-tension and low-tension wiring; however, for low-tension wiring, it is recommended to use a hanging safe to prevent the catenary from sagging. It is publicly known (for example, Japanese Patent Publication No. 59-8123). However, the known ones are limited to two-conductor extensions, and their hanging safes can only be used in one span, and must be removed and reinstalled when moving to a single span. .

[Problem that the invention seeks to solve]

For this reason, firstly, the hanging safe does not require removal and reinstallation for each span, and can pass through the steel tower metal car as is.
2. The applicable conductor is not limited to 2 conductors.
points are requested.

[Means for solving problems]

This opening and opening is provided with an interlocking device that automatically opens the top of the hanging safe when the hanging safe approaches the steel pylon wheel, thereby allowing the hanging safe to pass through the pylon metal wheel. Moreover, by constructing the hanging safe from a plurality of frames, each of which can independently insert and take out electric wires, it can be used for wire extension without being limited to two conductors.

[Example] -1□, Car 4 The drawings will be explained by taking as an example what is used for the wire extension work of the car 4 conductor. The present invention consists of a steel tower metal car T and a hanging safe H.

The steel tower-car T has an inverted U-shaped frame 1, as shown in Figures 1 and 2.
It is suspended from the steel tower by a hanging fitting 2 provided at the top of the tower. Further, a wire pulley 3 is pivotally supported at the center, and a traction pulley 4 is pivotally supported at the lower end. The wire extension pulley 3 is for the wire W, and the traction pulley 4 is for the traction rope R. A guide fitting 5 is attached to the center of the frame 1 and extends across the frame in the direction of line extension, and is symmetrical across the center part 5a. A rack 6 is attached to its →→l, and one end of the rack 6 is connected to the horizontal portion 5a.

On the other hand, the hanging safe H has a main frame A and a sub-frame B, and frames C and D are integrally provided in a substantially symmetrical manner to the left and right as shown in FIG.

A gate G1 equipped with a pulley 7 is pivotally attached to the top of the main frame A. Further, a pair of upper and lower guide rollers 8 protrude inward from both sides of the center, and can be moved by sandwiching the guide fittings 5 of the steel tower wheel. A pinion 9 is coaxially fixed to one guide roller 8,
It meshes with rack 6.

As will be described later, the pinion 9 interlocks with the rack 6 to open and close the gate G1.

A locking tool 10 is provided at the lower center end of the main frame body A, and can be locked to the tow rope R. A pulley 11 is also provided at the lower end. The frames B, C, and D each have a pair of upper and lower pulleys 12, 13, and 14, and a gate G2,
G3.

Equipped with G4, it is possible to insert and remove electric wires.

The reason why the pulley 11 is made into a two-part odd shape and the pulley 12a is made into an odd shape is that the hanging safe is suspended by the electric wire raised below the pulley 12a, and when the electric wire is extended by the pulley 11, the hanging safe is tilted. It is prepared to do so.

FIG. 4 shows the opening/closing device of the game 1-Gl. Bottomed cylinder 15
The one in which the bending arm 15a is integrated at the bottom of the
The end of this arm is pivotally connected to one top of the frame A by a shaft 16. The fan-shaped wire guide 17 is locked to the bending arm 15a. In the bottomed cylinder 15,
A pin 18 is inserted so as to be removable and removable, and is biased in the extraction direction by an attached spring 19. The wire 20 has one end locked to the pin 18 , freely passes through a hole bored in the bottom of the bottomed tube 15 , engages with the wire guide 17 , and then the other end is eccentrically locked to the side surface of the pinion 9 . be. wire 20
A stopper 20a is fixedly attached to the bending arm 15a and the wire guide 17. An engagement plate 21 is provided on the other top of the frame A.
A hole is drilled into which a pin 18 can be inserted. The positioning plate 22, which has a hook-shaped cross section, is fixed to the bottomed cylinder 15 at the negative side, so that when the other side comes into contact with the engagement plate 21, the pin 18 is located at the seat line of the hole in the engagement plate.

The solid line in FIG. 4 shows the state in which the gate G1 is closed and the pin 18 is engaged and locked with the engagement plate 21.

When the pinion 9 rotates, the wire 20 is pulled, causing the pin 18 to retreat while sliding along the wire guide 17. After the pin 18 is removed, the wire 20 rotates the bottom cylinder together with the wire guide 17 by the stopper 20a, and the gate G1 is opened as shown by the chain line. Even after the pinion 9 is disengaged from the rack 6, the pinion 9 is provided with a locking mechanism as shown in FIG. A tooth-missing portion 9a is provided so that the tooth-missing portion 9a of the pinion that is out of mesh engages with the horizontal portion 5a of the guide fitting and is slidably transferred. The toothless part 9a of the pinion is the horizontal part 5
After separating from a, the gate t-C,1 descends under its own weight. If necessary, a winding spring (not shown) may be attached to the shaft 16 to urge the gate C1 to rotate in the closing direction.

Effect of the embodiment □ Now, in FIG. 6, three steel towers 1, 1. If arm ■
The operation in that case will be explained assuming that four electric wires are extended in the direction of → ■→ ■.

A steel tower metal wheel T is suspended from each steel tower. The main rope wire Wa is engaged with the wire extending pulley 3 of each steel tower wheel, and the traction rope R is engaged with the respective traction pulley 4. After being delivered between the steel towers in this way, they are all wrapped around the respective winches W provided on the steel tower (2) side. Moreover, the wire Wb,
The right ends of We and Wd are locked to the top hanging safe Ha. The hanging safe H will be installed on the ground on the side of the steel tower ■.

As shown in FIG. 7, the main cable wire Wa is engaged with the frame body A, and the wires IFb, lfc, and Wd are engaged with the frame bodies B, C, and D, respectively. The tow rope R is locked to the locking devices 10 one after another at appropriate intervals. Main rope wire Wa
The tow rope R is in tension, and the other three extended wires Wb, We, Wd hang down between the hanging safes to form a small catenary. FIG. 6 shows this state.

In this state, the right end winch W is used to pull the rope and each wire so that the degree of slack is within an appropriate range. Hanging safe H
(game) - (, 1 is opened and the steel tower metal car ■ is crossed without any trouble, and then it is immediately closed and locked. After finishing placing the hanging safe just before the steel tower ■, the wire Wb, We,
Wd is connected to a plurality of winches W, each of which is provided so as to be independently operable. When the hanging safe H has been placed between the steel towers, each wire Wa, Wb, Wc, Wd is connected to the seventh
Located at the location shown in the diagram.

First, a power transmission line Kb is connected to the end of the wire wb,
Wire wb is replaced by power transmission line Kb. Figure 8,・
f FIG. 9 shows a state in which the power transmission line Kb is arranged inside the hanging safe H.

Next, the power transmission line Kb is lifted up, the tension on the main rope wire Wa is loosened, and the wire Wa is transferred from pulley 7 to pulley 11. A hanging safe H is suspended from the power transmission line Kb, a power transmission line Ka is connected to the end of the wire Wa, and the wire Wa is replaced with the power transmission line Ka. FIGS. 10 and 11 show this state.

In the state shown in FIGS. 10 and 11, the power transmission line Ka is lifted up and transferred to the pulley 11 or 57, and the hanging safe 11 is suspended from the power transmission lines Kb and Ka.

In FIGS. 12 and 13, the wire Wc is in this state.

This shows how Wd is replaced by transmission lines Kc and Kd.

Next, the power transmission lines Kc and Kd are boarded up and transferred from pulley 13b to pulley 13a and from pulley x4b to 148, respectively, and the four-conductor wire extension is completed.

Next, pull the hanging safe H to the front of each steel tower, and go to the gate c2 of the hanging safe H. c3. Open c4 and power transmission line Kb.

Take out Kc and Kd from the hanging safe, suspend the hanging safe from the power transmission line Ka, pull the towing rope R, pass each steel tower metal car T, and remove the hanging safe from the ground.

Although the case of four conductors has been described above, it is obvious that the number of conductors can be increased or decreased by increasing or decreasing the number of frames.

〔Effect of the invention〕

al It is possible to pass the gold wheel over several spans,
Workability is dramatically improved.

bl Can be used for extending multiple power transmission lines.

Because it is a C1 low-tension wire extension, even large-diameter power transmission lines do not require particularly large construction equipment and the construction area can be small.

dl Protective measures such as building a tower under the power lines are not allowed□
The key point.

el Since the hanging safe is installed and removed on the ground, work at heights is reduced, contributing to work safety.

It has multifaceted effects such as this, making it possible to significantly reduce construction costs overall.

[Brief explanation of drawings]

Figure 1 is a front view of the steel tower wheel, Figure 2 is a side view of the same, Figure 3 is a front view of the hanging safe, Figure 4 is a side view showing the top gate opening/closing device, and Figure 5 is the operation of the pinion. An explanatory diagram, Fig. 6 is an explanatory diagram of the relationship between the steel tower and the wire extension direction, Fig. 7 is an explanatory diagram of the relationship between the hanging safe and each wire, and Figs. 8 to 13 are explanatory diagrams of the wire extension process.
Even numbers are front views, and odd numbers are corresponding side views. T...Tele tower gold car, H...Hanging safe, Ha...
Top hanging safe, A, B, C, D...Frame, Gl, G
2, G3, G4...gate, W...wire, Wa...main rope wire, K...power transmission line, R
...Tow rope, I, I, It... Steel tower, d
...Drum, W...Winch, 1...Frame, 2...Hanging fittings, 3...Wire extension pulley, 4...
Towing pulley, 5...Guide fitting, 5a...Horizontal part, 6...-Rack, 7...Pulley, 8...
Guide roller, 9... pinion, 10... locking tool, 11, 12, 13, 14... pulley, 15
...Bottomed tube, 15a...Arm, 16...Shaft, 17...Wire guide, 18...Pin,
19...Spring, 20...Wire, 20a...
・Stopper, ・21...Engagement plate, 22...
・Positioning plate. Patent Applicant: Kyushu Electric Construction Co., Ltd. Patent Applicant: Sanwa Chikki Co., Ltd. Agent: Patent Attorney Tadashi Okumura Figure 8, Figure 10, Figure 12, Figure 9, Figure 11. Figure 13 Proceedings Amendment (Voluntary) 1981
February 2g, 1, Display of the case Patent application 1982-1244222, Name of the invention S Steel wheel device for wire extension and main gate opening/closing electric manufacturing 3, Relationship with the case of the person making the amendment Patent applicant address Fukuoka, Fukuoka prefecture 2-1-82 Watanabe-dori, Chuo-ku, City Name: Kyushu S-Kensetsu Construction Co., Ltd. (1 other person) Representative Director and President: Asa 1) Ryota 4, Agent: 101 Application form and specification (“Name of the invention”) (“Scope of Claims” and “Detailed Description of the Invention”) 6. Contents of amendment a0 Name of the invention changed to [Method for extending wire and wire rolling wheel b
, the first and second specifications and claim J are amended as follows. t, connect the transmission line (Kb) to the sending end of one of these wires (wb), replace it with the wire (wb), and connect the transmission line (
Kb) and the main rope wire (*a). The process of tensioning the electric wires inserted into the frame and supporting the load of the hanging safe is hereinafter referred to as board raising.''

Claims (2)

[Claims] (1) It consists of a steel tower safe equipped with a guide fitting that crosses the line extension direction, and a hanging safe that has a main gate on the top of the main frame and inwardly symmetrical guide rollers on both sides. A metal wheel device for wire extension equipped with an interlocking device that allows the main gate to be opened and closed by passing through the steel tower safe guide metal fitting. (2) A metal rail car for wire extension, consisting of a steel tower safe equipped with a guide wire that crosses the line extension direction, and a hanging safe equipped with a main gate on the top of the main frame and inwardly symmetrical guide rollers on both sides. a pin attached to the device, provided on the main gate, and always urged to advance in a direction to lock the main gate by an attached spring;
A rack fixed to the entrance side in the direction of wire extension of the guide, a pinion fixed to the shaft of the hanging safe guide roller and meshing with the rack, one end locked to the pin and the other end wound around the shaft of the pinion. A main gate opening/closing device comprising a wire that can be locked and that can be wound to release the lock and open the main gate.