JPH05319149A - Anchor device straining catenary wire for electric overhead line - Google Patents

Abstract

PURPOSE:To anchor a catenary wire with strong gripping force by inserting the catenary wire into a wedge support cylinder installed in a tapered cylindrical case and clamping the catenary wire by wedge claw plates from three directions while turning a lock nut. CONSTITUTION:Of a cylindrical case 1, the front half is formed into a convergent tapered cylindrical part 2, and into this convergent tapered cylindrical part 2, a wedge support cylinder 7 is fit. On the wedge support cylinder 7, wedge fitting long grooves 9a, 9b, 9c are formed, in which wedge claw plates 10a, 10b, 10c are fit, and a lock nut 15 to screw on the wedge support cylinder 7 is furnished. When an end part of a catenary wire is inserted into the wedge support cylinder 7 constituted as above and clamped with the lock nut 15, the wedge support cylinder 7 draws the wedge claw plates 10a, 10b, 10c to the head end of the cylindrical case 1. Consequently, the wedge claw plates 10a, 10b, 10c are pressed by the inside surface of the convergent tapered cylindrical part 2 and strongly grip the peripheral surface of the catenary wire from three directions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for retaining suspension lines and electric lines.

[0002]

2. Description of the Related Art As a conventional strained wire object for retaining a train line or its suspended overhead wire, a suspended wire object of a suspended overhead wire is as shown in FIG. Using the halved wedge metal fittings b and c having the groove a to be fitted, separate a large number of strand wires d of the suspended overhead wire into each groove a and fit them into the outer tubular metal fitting e. It was held by gripping each strand d. In addition, the train wire demolition hardware is configured such that both sides of the train wire are sandwiched and held by wedge metal fittings. This wedge metal fitting has a wide serrated gripping surface on the outer circumference of the train wire. It is formed in an arcuate surface that conforms to the circumferential surface, and the gripping surface formed in this saw-toothed arcuate surface is configured to grip the electric power line from both sides.

[0003]

In the conventional demolition hardware as described above, in the case of the suspended metal debris, each wire of the suspension wire is divided into one wire and the wedge metal parts b and c are separately provided in the respective grooves a. Since it has to be fitted, the work is complicated and requires a lot of work, and the cost is high because the split wedge metal fittings b and c having the fitting groove a for each wire of the suspension wire are used in the central portion and the outer peripheral surface. In addition, since the train wire demolition object only grips the train wire from both sides, the gripping force is not always sufficient, and there is a problem in maintaining a strong gripping force for a long period of time. Since it has to be formed as a saw-toothed surface by forming an arcuate surface that conforms to the outer circumferential surface of the train line, the cost becomes high.

The present invention speeds up the holding and pulling work of suspended overhead wires.
It is an object of the present invention to provide a suspension device for a suspension line or a train line that can be easily and reliably carried out, can grip a train line with a strong gripping force, and is easy to manufacture. To do.

[0005]

In order to achieve the above-mentioned object, the present invention provides (1) a suspending device for a suspended overhead wire in a wedge fitting long groove 9a, 9b, 9c of a wedge supporting cylinder 7. 10a, 10b,
By fitting 10c and mounting it in the tapered tapered cylindrical portion 2 of the cylindrical case 1, inserting the end of the suspension wire into the wedge supporting cylinder 7, and tightening the tightening nut 15 screwed into the wedge supporting cylinder 7. , The outer periphery of the suspended overhead wire is configured to be held by each wedge claw plate from three directions,

(2) Protrusions for fitting the train line detention device to the train line groove on both sides of the upper half of the inner surface of the tip end opening of the wedge support cylinder 18.
19 and 19 are provided, and the wedge fitting long grooves 9a and 9 of the wedge support cylinder 18 are provided.
The wedge claw plates 10a, 10b, and 10c are fitted to the b and 9c to be mounted in the tapered tapered cylindrical portion 2 of the cylindrical case 1, and the end of the electric power line is inserted into the wedge supporting cylinder 18 so that the wedge supporting cylinder 18 By tightening the tightening nut 15 that is screwed into the, the outer circumference of the electric train line is grasped by the wedge claw plates from three directions.

[0007]

When the tightening nut 15 screwed into the wedge support cylinders 7 and 18 is tightened, the wedge support cylinders 7 and 18 are wedge wedge plates 10a, 10b and 10c.
Pull c toward the tip of the cylindrical case 1. Therefore, the wedge claw plates 10a, 10b, 10c are pressed against the inner side surface of the tapered tapered cylindrical portion 2 of the cylindrical case 1 and inserted into the wedge supporting cylinders 7, 18, so that the peripheral surfaces of the suspension overhead wires and the electric power lines are oriented in three directions. Grip firmly from.

In a train line retractor, a wedge support cylinder 18
Since the projections 19, 19 provided on both sides of the upper half of the inner surface of the distal end opening fit into the grooves on both side surfaces of the train line, the train line is held in a normal state without being twisted and grasped.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a partial sectional view of a device for retaining a suspension wire which is a first embodiment of the present invention, FIG. 2 is a front end face of FIG.
Shows a cross section taken along the line AA of FIG. In each of the figures, 1 is a tapered tapered cylindrical case, 7 is a wedge support tube fitted at the tip of the cylindrical case 1, 10a, 10b, 10
c is the wedge support cylinder 7 inside the cylindrical case 1.
A wedge washer which is supported by, a spring washer 14 inserted into the wedge support cylinder 7 protruding from the tip of the cylindrical case 1, a nut 15 screwed to the protruding outer peripheral surface of the wedge support cylinder 7, and 16 Hook bolts attached to the latter half of the cylindrical case 1 by penetrating,
Reference numeral 17 is a nut screwed to the retaining bolt 16.

As shown in FIG. 4 showing the axial cross section and FIG. 5 showing the rear end surface of the cylindrical case 1, the front half of the metal hollow cylindrical body is formed into a tapered tapered cylindrical portion 2, A tip hole 3 is provided at the tip thereof, a tip ring portion 4 is provided at the periphery of the hole 3, and bolt insertion holes 6, 6 are provided in the cylinder wall of the cylinder portion 5 in the latter half of the cylinder body.

The wedge support cylinder 7 has a diameter which fits into the tip end hole 3 of the cylindrical case 1 as shown in FIG. 6 which is a cutaway view of FIG. A screw 8 is provided on the peripheral surface of the front part of the metal hollow cylindrical body of, and a long and narrow wedge fitting long groove 9 is formed in the axial direction in the cylinder wall of the rear part of the screw 8 by 120 °.
Three of 9a, 9b, and 9c are provided at equal angular intervals.

Each of the wedge claw plates 10a, 10b and 10c is an elongated plate body obtained by carburizing and quenching a metal plate as shown in FIG. 8 of the front view and FIG. 9 of the end view. The wedge support cylinder 7 is formed to have a length that fits into the wedge fitting long groove 9, a saw-toothed tooth portion 11 is provided at a lower edge thereof, and an upper edge is formed as a tapered upper edge 12. The taper angle of the taper upper edge 12 is the same as the taper angle of the inner surface of the tapered taper cylindrical portion 2 of the cylindrical case 1. Reference numeral 13 is a stepped portion provided on the front and rear portions of the serrated tooth portion 11 on the lower edge.

As shown in FIG. 1, the cylindrical case 1, the wedge supporting cylinder 7, and the wedge claw plate 10 having the above-described constructions have saw tooth portions of the three wedge claw plates 10a, 10b, 10c. 11 for wedge support cylinder 7 3
The three wedge-fitting long grooves 9a, 9b, 9c are fitted, and the step portions 13 at both ends of the serrated teeth are hung on the edges of the wedge-fitting long grooves to support the three wedge claw plates on the wedge support cylinder 7. Let In this way, the wedge claw plates 10a, 10
The front part of the wedge support cylinder 7 into which the b and 10c are fitted is fitted into the tip hole 3 of the tapered tapered cylindrical portion 2 of the cylindrical case 1 and the front side of the wedge support cylinder 7 protruding from the tip hole 3. A spring washer 14 is fitted to the peripheral surface screw 8 and a tightening nut 15 is screwed to attach the wedge support cylinder 7 to the tip of the cylindrical case 1.
When the wedge support cylinder 7 is attached in this way, the wedge claw plates 10a, 10 fitted in the wedge fitting long grooves 9a, 9b, 9c of the wedge support cylinder 7 are attached.
The upper side edges 12 of the tapers b and 10c are in contact with the inner surface of the tapered tapered cylindrical portion 2 of the cylindrical case 1. As described above, the latch bolt 16 is inserted through the bolt insertion holes 6 provided in the cylindrical portion 5 in the rear half of the cylindrical case 1 to which the wedge support cylinder 7 supporting the wedge claw plate is attached, and the nut 17 is screwed. Together, they constitute the suspension device for the suspended overhead wire of the first embodiment of the present invention.

The suspension device for a suspended overhead wire of the present invention constructed as described above retains the end of the suspended overhead wire in the following manner.
As shown in FIG. 10, when the tightening nut 15 screwed onto the tip of the wedge support cylinder 7 protruding at the tip of the cylindrical case 1 is loosened and placed at the position indicated by the dotted line 15 ', the wedge support cylinder 7 is It can be moved in the axial direction, and its rear end can be moved to the position shown by the dotted line 7b to the right in FIG. As shown by the chain line, the suspended wire of the stranded wire from the opening 7a at the tip of the wedge support cylinder 7.
When the end portion of 20 is inserted in the direction of arrow X, the wedge support cylinder 7 in which the screwed tightening nut 15 is loosened to the position of the dotted line 15 'is retracted to the position of the dotted line 7b at the rear end as the hanging wire 20 is inserted. Therefore, the wedge claw plate 10a fitted to the wedge support cylinder 7
(10b, 10c) moves to the position shown by the dotted line 10a 'in FIG. When the wedge support cylinder 7 is at the position of this dotted line 10a ', each upper tapered edge 12' of the wedge claw plate 10a 'at this position is separated from the inner surface of the tapered tapered cylindrical portion 2 of the cylindrical case 1 and a gap G is provided therebetween. As a result, the wedge claw plate 10a 'fitted in the wedge fitting long groove 9a (9b, 9c) of the wedge support cylinder 7 is in a state of being able to move outward toward the inner surface side of the tapered tapered cylindrical portion 2. The serrated teeth 11 do not project inside the wedge support cylinder 7. Therefore, the end portion of the suspension wire 20 inserted through the tip end opening 7a of the wedge support cylinder 7 is inserted in the arrow X direction without being obstructed by the serrated tooth portion 11.

When the suspension wire 20 is inserted and the tightening nut 15 is tightened as described above, the wedge support cylinder 7 is brought to the solid line position, and is fitted into the wedge fitting long groove 9 of the wedge support cylinder 7 at the solid line position. The serrated tooth portions 11 projecting inwardly of the wedge support cylinder 7 bite into the peripheral surface of the suspended wire 20 of the stranded wire. In this way, the wedge fitting long grooves 9a, 9b, 9c of the wedge support cylinder 7 are fitted together 3
With the wedge claw plates 10a, 10b, 10c, the peripheral surface of the suspension wire 20 is 1
Since it is gripped and gripped in three directions with an angular interval of 20 °, it is gripped with a strong gripping force.

FIG. 11 is a partial cross-sectional view of an electric train line retractor according to a second embodiment of the present invention, and FIG. 12 is a rear end face thereof.
In the figure, the same reference numerals as those in FIG. 1 indicate the same parts. Other parts than the wedge support cylinder 18 have the same structure as that of the first embodiment, and the cylindrical case 1 has the same structure as that shown in FIGS.
A front end ring portion 4 is provided around the hole 3 at the tip of the tapered tapered cylindrical portion 2 in the front half of the metal hollow cylindrical body, and bolt insertion holes 6, 6 are provided in the cylindrical wall of the cylindrical portion 5 in the rear half of the cylindrical body. It has a different structure.
Further, the wedge claw plate 10 has a serrated tooth portion 11 on the lower edge of an elongated plate body obtained by subjecting a metal plate to surface treatment by carburizing and quenching, similarly to the structure shown in FIG. 8 and FIG. An edge is formed on a taper upper edge 12 having the same angle as the taper angle of the inner surface of the tapered tapered cylindrical portion 2 of the cylindrical case 1, and a step portion 13 is formed on the front and rear portions of the serrated tooth portion 11 on the lower edge. It is the structure provided.

The train line retractor of the second embodiment differs from the first embodiment in that the wedge support cylinder 18 has a structure in which the end of the train line is inserted. The wedge support cylinder 18 of the second embodiment has a front view shown in FIG. 13, a front end shown in FIG. 14, and C in FIG.
As shown in FIG. 15 showing a section taken along the line C, a screw 8 is provided on the peripheral surface of the front portion of the metal hollow cylindrical body having a diameter that fits in the tip hole 3 of the cylindrical case 1, and the rear portion of the screw 8 is provided. Wedge fitting long grooves 9 which are long in the axial direction are formed on the cylindrical wall of the No. 9 at equal angular intervals of 120 °.
A wedge supporting cylinder is provided with three pieces a, 9b, and 9c (the structure of each of these parts is the same as the structure shown in FIGS. 6 and 7).
On both sides of the upper half of the inner surface of the tip opening 18 'of the 18 are provided protrusions 19 and 19 which fit into the hanger pinching grooves on both sides of the upper half of the train line.

As described above, the projections 19, 19 are formed on the inner surface of the tip opening.
The wedge supporting cylinder 18 provided with the three wedge fitting long grooves 9a, 9
b, 9c are fitted with three wedge claw plates 10a, 10b, 10c, the wedge supporting cylinder 18 is fitted into the tip hole 3 of the tapered tapered cylindrical portion 2 of the cylindrical case 1, and the spring washer 14, Tightening nut 15
It is attached to the tip of the cylindrical case 1 by means of, and the retaining bolt 16 is inserted into the bolt insertion hole 6 of the cylindrical portion 5 of the cylindrical case 1 and the nut 17 is screwed in as in the first embodiment. Is.

11 and 1 with the wedge support cylinder 18 attached.
In the second preferred embodiment of the train-line retaining device shown in FIG. 2, the tightening nut 15 is loosened, and the end of the train-line 21 is tightened by inserting the end portion 18 'of the wedge support cylinder 18 as shown by a broken line. When the nut 15 is tightened, as in the first embodiment described above, the serrated tooth portions 11 of the three wedge-shaped claw plates 10a, 10b, 10c are arranged on the circumferential surface of the train line 21 at an angular interval of 120 °. It bites in from the direction and grips the power line 21 with a strong gripping force. As shown in FIG. 12, the train line 21 gripped in this way is wedge-supported.
Since the projections 19 on the inner surface of the opening of the tip end 18 are fitted in the hanger ear holding grooves on both sides of the train line, they can be gripped in a normal state without being twisted.

[0020]

As described above, according to the present invention, a suspending wire or a train wire is inserted into a wedge supporting cylinder attached to a tapered cylindrical case, and a tightening nut is turned to suspend the suspending wire with a wedge claw plate.
Since the trolley wire is configured to be clamped and gripped from three directions, the suspension overhead wire and the trolley wire can be gripped and retained with a strong gripping force. In addition, since a protrusion that fits into the groove of the train line is provided on the inner surface of the opening of the tip of the wedge support tube for inserting the train line
The train line can be gripped in a normal state without being twisted.

[Brief description of drawings]

FIG. 1 is a front view showing a partial cross section of an apparatus according to a first embodiment of the present invention.

FIG. 2 is a front end view of the device.

FIG. 3 is a sectional view taken along line AA of FIG.

FIG. 4 is a sectional view of a cylindrical case of the device of the present invention.

FIG. 5 is a rear end view of the cylindrical case.

FIG. 6 is a front view showing a partial cross section of the wedge support cylinder of the first embodiment of the present invention.

7 is a sectional view taken along line BB in FIG.

FIG. 8 is a front view of a wedge claw plate of the device of the present invention.

FIG. 9 is a rear end view of the wedge claw plate.

FIG. 10 is an operation explanatory diagram of the device of the present invention.

FIG. 11 is a front view showing a partial cross section of an apparatus according to a second embodiment of the present invention.

12 is a cross-sectional view taken along the line CC of FIG.

FIG. 13 is a front view showing a partial cross section of a wedge support cylinder of a second embodiment of the present invention.

FIG. 14 is a front end view of the wedge support cylinder of the second embodiment.

FIG. 15 is a sectional view taken along line DD of FIG.

FIG. 16 is a diagram showing a conventional example.

[Explanation of symbols]

 1: Cylindrical case 2: Tapered tapered cylindrical portion 7, 18: Wedge support tube 9a, 9b, 9c: Wedge fitting long groove 10a, 10b, 10c: Wedge claw plate 15: Tightening nut 19: Tightening nut 20: Suspended wire 21: Train line

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Sadakage Natsu 2-1-1-19 Hiromachi, Shinagawa-ku, Tokyo East Japan Railway Company General Engineering Development Promotion Department Technical Center (72) Inventor Hino 12-22-6 Hamamatsu-cho, Minato-ku, Tokyo Stock company Asaba Works (72) Inventor Shigeo Kimura 1-2-22 Hamamatsu-cho, Minato-ku Tokyo Tokyo Asaba Works

Claims (2)

[Claims] 1. A wedge support cylinder supporting three wedge claw plates at equal angular intervals is mounted in a tapered tapered cylindrical portion of a cylindrical case, and an end portion of a suspension overhead wire is inserted into the wedge support cylinder to support the wedge. A suspension overhead wire retractor characterized in that the outer periphery of the suspension overhead wire is gripped by wedge claw plates from three directions by tightening a tightening nut screwed into the cylinder. 2. A wedge support cylinder having a projection fitted to a groove of an electric power line on an inner surface of a tip opening and supporting three wedge claw plates at equal angular intervals is provided in a tapered tapered cylindrical portion of a cylindrical case. Installation,
An electric line retaining device characterized in that an end of an electric train line is inserted into the wedge supporting cylinder, a tightening nut screwed to the wedge supporting cylinder is tightened, and an outer circumference of the electric train line is grasped by wedge claw plates from three directions. apparatus.