CN2938510Y

CN2938510Y - Strain clamp device for power line

Info

Publication number: CN2938510Y
Application number: CN 200620075624
Authority: CN
Inventors: 李谋祥; 孔德春; 张静华
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-21
Filing date: 2006-08-21
Publication date: 2007-08-22
Anticipated expiration: 2016-08-21

Abstract

The utility model discloses strain clamp device for power line belongs to power transmission line and draws current and use the line clamp device. The strain clamp device consists of a steel anchor (1), a strain clamp body (2), a drainage clamp (3), an aluminum alloy connecting sleeve (8), a drainage plate (9) and a plurality of connecting pieces, wherein the left part of the aluminum alloy connecting sleeve (8) is pressed on an annular groove at the right end of the steel anchor (1), and the right part of the aluminum alloy connecting sleeve is pressed on an aluminum stranded wire of an aluminum alloy core; the left part of the strain clamp body (2) is pressed on the annular groove at the left part of the steel anchor (1), the middle part is pressed on the aluminum alloy connecting pipe (8), and the right part is pressed on the aluminum alloy core stranded wire; the upper part of the drainage plate (9) is sleeved and welded on the strain clamp body (2), and the lower part is connected and fixed with the drainage clamp (3) through a bolt (4), a nut (5), an elastic pad (6) and a flat pad (7). The strain clamp device for the power line has the advantages that the strain clamp device can be pressed on an aluminum alloy core aluminum stranded wire, and the resistivity of the aluminum alloy is smaller than that of a steel core, so that the current carrying capacity is large.

Description

Strain clamp Device for Power Lines

Technical field:

The utility model power circuit belongs to transmission line drainage line clamping device with strain clamp.

Background technology:

Requirement draws power current get off from transmission line, needs with special-purpose strain clamp device, and strain clamp device in the past links to each other with steel reinforced aluminium conductor, and need be connected with the aluminium alloy core aluminium stranded conductor now, so the strain clamp device needs specific planform.

Summary of the invention:

The purpose of this utility model provides a kind of strain clamp Device for Power Lines, be pressed on steel anchor and the aluminium alloy core aluminium stranded conductor by strain clamp body and aluminium alloy adapter sleeve, by drainage plate and drainage wire clamp power current extracted by the aluminium alloy core aluminium stranded conductor again.

A kind of strain clamp Device for Power Lines, it is made up of steel anchor (1), strain clamp body (2), drainage wire clamp (3), aluminium alloy adapter sleeve (8), drainage plate (9) and some connectors, it is characterized in that aluminium alloy adapter sleeve (8) left part is crimped on steel anchor (1) the right-hand member cannelure, right part is pressed on the aluminium alloy core aluminium stranded conductor; Strain clamp body (2) left part is crimped on steel anchor (1) the left part cannelure, and the middle part is crimped on the aluminium alloy tube connector (8), and right part is pressed on the aluminium alloy aluminium stranded conductor; Drainage plate (9) top suit is welded on the strain clamp body (2), and the bottom is connected to a fixed with drainage wire clamp (3) by bolt (4), nut (5), bullet pad (6), plain cushion (7).

There is mounting hole in steel anchor left side, is connected to the steel fastener that has insulator as connecting orifice ring, hang on the iron tower, and the desired strength height, there is cannelure on steel anchor right side, and left part cannelure external diameter is big, and right part cannelure external diameter is little.

The strain clamp body is a hollow pipe, and the left part suit is crimped on the bigger cannelure of steel anchor right part external diameter, and the middle part is crimped on the aluminium alloy adapter sleeve, and right part is pressed on the aluminium alloy core aluminium stranded conductor.

The aluminium alloy adapter sleeve is the circle hollow bushing, and left part is crimped on the steel anchor right-hand member cannelure, and right part is pressed on the aluminium alloy core aluminium stranded conductor, and the aluminium alloy adapter sleeve is positioned at the strain clamp body.

Drainage plate top is semicircular plate, and a through hole is arranged on the semicircular plate, and the strain clamp body is sleeved in the through hole of drainage plate top, and the strain clamp body is mutually integrally welded with the part of drainage plate top semicircular plate through hole suit; The drainage plate bottom is a rectangular slab, and a α angle is arranged between the semicircular plate of top, on the rectangular slab of drainage plate bottom some bolt mounting holes are arranged, some bolts are installed in drainage plate bolt mounting holes and the drainage wire clamp bolt mounting holes, and by nut, bullet pad, plain cushion both are fastened together.

Drainage wire clamp top is rectangular-shaped flat board, has the through hole of construction bolt on flat board, and drainage wire clamp bottom is a hollow circular-tube, is semicircle arcuation transitional face with the rectangular-shaped flat board in top and is connected; In the hollow circular-tube of drainage wire clamp bottom the aluminium alloy core aluminium stranded conductor can be installed.

The advantage of this strain clamp apparatus structure is can be crimped on the aluminium alloy core aluminium stranded conductor, because the resistivity of Al alloy core is littler than steel core, therefore, ampacity is big.

Description of drawings:

Fig. 1: the utility model strain clamp device assembling schematic diagram.

Fig. 2: steel anchor (1) contour structures front elevational schematic.

Fig. 3: weld cross-sectional schematic between strain clamp body (2) and the drainage plate (9).

Among the figure: α is an angle between drainage plate (9) top semicircular plate and bottom rectangular slab.

Fig. 4: drainage plate (9) front elevational schematic.

Fig. 5: drainage wire clamp (3) front elevational schematic.

Fig. 6: drainage wire clamp (3) schematic side view.

Embodiment:

Referring to Fig. 1 and Fig. 2: steel anchor (1) is the Q235-A steel, and there is mounting hole in steel anchor (1) left side, and there is cannelure on the right side, and left part cannelure external diameter is big, and right part cannelure external diameter is little.

Strain clamp body (2) is hollow aluminum pipe, model is the 1050A material, and left part is crimped on the bigger cannelure of steel anchor (1) right part external diameter with the pressing tongs suit, and the middle part is crimped on the aluminium alloy adapter sleeve, right part is pressed on the aluminium alloy core aluminium stranded conductor, and aluminium alloy core is 7 strands.

Aluminium alloy adapter sleeve (8) is positioned at strain clamp body (1) for the circle hollow bushing, and material is 1060 aluminium alloys, and aluminium alloy adapter sleeve (8) left part is crimped on steel anchor (1) the right-hand member cannelure, and right part is pressed on the aluminium alloy core aluminium stranded conductor.

Referring to Fig. 3 and Fig. 4: drainage plate (9) top is semicircular plate, one through hole is arranged on the semicircular plate, strain clamp body (2) is sleeved in the through hole of drainage plate (9) top, both are welded into one at suit contact portion circle, drainage plate (9) bottom is a rectangular slab, and a α angle is arranged, angle α=15 ° between the semicircular plate of top.There are four bolts that through hole is installed on the rectangular slab of drainage plate (9) bottom, these four through holes are by upper and lower symmetric arrays in twos, four bolts by M16 * 75 are installed in four drainage plate (9) bolt mounting holes and four drainage wire clamps (3) bolt mounting holes, and by nut (5) M16, bullet pad (6) and plain cushion (7) are fastened together drainage plate (9) and drainage wire clamp (3).

Referring to Fig. 5 and Fig. 6: drainage wire clamp (3) is the AL99.5 fine aluminium, has four bolt mounting holes on the rectangular-shaped flat board on drainage wire clamp (3) top, and drainage wire clamp (3) bottom is a hollow circular-tube, is semicircle arcuation transitional face with the rectangular-shaped flat board in top and is connected; Available crimper is installed and is pressed on the aluminium alloy core aluminium stranded conductor in the lower hollow pipe of drainage wire clamp (3), and by the aluminium stranded conductor projected current, drainage wire clamp (3) upper board thickness is 18 millimeters.

Claims

1, a kind of strain clamp Device for Power Lines, it is made up of steel anchor (1), strain clamp body (2), drainage wire clamp (3), aluminium alloy adapter sleeve (8), drainage plate (9) and some connectors, it is characterized in that aluminium alloy adapter sleeve (8) left part is crimped on steel anchor (1) the right-hand member cannelure, right part is pressed on the aluminium alloy core aluminium stranded conductor; Strain clamp body (2) left part is crimped on steel anchor (1) the left part cannelure, and the middle part is crimped on the aluminium alloy tube connector (8), and right part is pressed on the aluminium alloy aluminium stranded conductor; Drainage plate (9) top suit is welded on the strain clamp body (2), and the bottom is connected to a fixed with drainage wire clamp (3) by bolt (4), nut (5), bullet pad (6), plain cushion (7).

2, strain clamp Device for Power Lines according to claim 1 is characterized in that there is mounting hole in steel anchor (1) left side, and there is cannelure on the right side, and right side left part cannelure external diameter is big, and right part cannelure external diameter is little.

3, strain clamp Device for Power Lines according to claim 1 is characterized in that strain clamp body (2) is a hollow pipe, and material is the 1050A aluminum pipe.

4, strain clamp Device for Power Lines according to claim 1 is characterized in that aluminium alloy tube connector (8) is the circle hollow bushing, and material is 1060 aluminium alloys.

5, strain clamp Device for Power Lines according to claim 1, it is characterized in that drainage plate (9) top is semicircular plate, one through hole is arranged on the semicircular plate, drainage plate (9) bottom is a rectangular slab, four through holes of the bolt of symmetric arrays installation are in twos up and down arranged on the rectangular slab, one angle α is arranged, α=15 ° between top semicircular plate and the bottom rectangular slab.

6, strain clamp Device for Power Lines according to claim 1, it is characterized in that drainage wire clamp (3) top is rectangular-shaped flat board, have four bolt mounting holes on it, drainage wire clamp (3) bottom is a hollow circular-tube, the rectangular-shaped flat board in top is semicircle arcuation transitional face with the lower hollow pipe and is connected, and drainage wire clamp (3) upper flat plate thickness is 18 millimeters.