CN110676787A

CN110676787A - Cable stockbridge damper

Info

Publication number: CN110676787A
Application number: CN201910974397.7A
Authority: CN
Inventors: 李克超
Original assignee: Jiangsu Kaikai Cable Co Ltd
Current assignee: Jiangsu Kaikai Cable Co Ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-01-10
Anticipated expiration: 2039-10-14
Also published as: CN110676787B

Abstract

A cable vibration damper comprises a cable mounting sleeve, a heavy hammer balance assembly and a connecting plate, wherein the cable mounting sleeve is sleeved on a cable, the connecting plate is used for connecting the cable mounting sleeve and the heavy hammer balance assembly, the cable mounting sleeve comprises a semi-arc bearing plate and a semi-arc gland plate which are hinged with each other, and a hinge shaft is arranged between the semi-arc bearing plate and the semi-arc gland plate; through setting up two mutual articulated semi-arc loading boards and semi-arc gland plate, it is inboard around the traction rod cardboard on the connecting plate with the traction rod of semi-arc gland plate bottom, can form the spacing effect of tractive, it is not hard up to prevent semi-arc loading board upwarp, and be equipped with spacing clamp plate between two traction rod cardboards, make spacing clamp plate fix the traction rod in the traction rod cardboard, and the mounting means of spacing clamp plate adopts the bolt spiro union, do not atress in the spiro union direction, the bolt is difficult to become flexible, can guarantee longer time stability, reduce the maintenance number of times, prolong maintenance cycle, staff's intensity of labour is reduced.

Description

Cable stockbridge damper

Technical Field

The invention relates to the field of power cables, in particular to a cable vibration damper.

Background

The vibration damper is arranged for reducing vibration of a lead due to wind power, a high-voltage overhead line is high in pole position and large in span, the lead can vibrate under the action of wind power, working conditions of a hanging part of the lead are most unfavorable when the lead vibrates, the lead can be subjected to fatigue damage due to periodic bending due to repeated vibration, and the vibration damper is generally used for vibration damping when the span of the overhead line is larger than 120 meters.

When installing the cable, the stockbridge damper for electric power of present is installed on the electric power cable mostly through the mode of bolt fastening, and its bolt is for two fixed splint, and bolt atress direction is the same with the orientation of loosening of splint, and the bolt after the installation is also ageing very easily through the exposure to the sun and rain in the later stage, leads to the stockbridge damper to slide, the installation insecure, needs the periodic overhaul, makes staff's work load increase.

Disclosure of Invention

In order to overcome the problems presented by the technical background, the invention provides a cable damper.

The technical scheme of the invention is as follows: a cable vibration damper comprises a cable mounting sleeve sleeved on a cable, a heavy hammer balance assembly and a connecting plate for connecting the cable mounting sleeve and the heavy hammer balance assembly, wherein the cable mounting sleeve comprises a semi-arc bearing plate and a semi-arc gland plate which are hinged with each other, a hinge shaft is arranged between the semi-arc bearing plate and the semi-arc gland plate, the semi-arc bearing plate and the semi-arc gland plate are hinged with each other through the hinge shaft, the connecting plate is fixedly connected to the bottom of the semi-arc bearing plate, two sides of the connecting plate are provided with symmetrically distributed traction rod clamping plates, the traction rod clamping plates are fixedly connected with the connecting plate, two ends of the bottom of the semi-arc gland plate are provided with traction rods corresponding to the positions of the traction rod clamping plates, the traction rods are fixedly connected with the semi-arc gland plate, and the traction rods are clamped and mounted on the inner side of, and a limiting pressure plate is arranged on the front surface of the connecting plate and is close to the space between the two traction rod clamping plates, and the limiting pressure plate is fixed with the connecting plate in a threaded manner and used for clamping the traction rod into the traction rod clamping plates.

Preferably, the arc length of the semi-arc bearing plate is greater than pi, the arc length of the semi-arc gland plate is less than pi, and the sum of the semi-arc bearing plate and the semi-arc gland plate is less than 2 pi.

Preferably, the inner side walls of the half-arc bearing plate and the half-arc gland plate are fixedly bonded with rubber inner bushings, and the inner side walls of the rubber inner bushings are provided with anti-skid grains.

Preferably, the traction rod clamping plate is in a semi-circular arc shape, a cavity for accommodating the traction rod is formed between the traction rod clamping plate and the connecting plate, and the shortest gap between the traction rod clamping plate and the connecting plate is larger than the diameter of the traction rod.

Preferably, a disc-shaped limiting block is fixed at the bottom of the traction rod, and the diameter of the limiting block is larger than the outer diameter of the traction rod clamping plate.

Preferably, the middle position of the limiting pressure plate is provided with a screw hole and a bolt, and the limiting pressure plate is fixed with the connecting plate through the bolt in a threaded manner.

Compared with the prior art, the invention has the beneficial effects that:

through setting up two mutual articulated semi-arc loading boards and semi-arc gland plate, it is inboard around the traction rod cardboard on the connecting plate with the traction rod of semi-arc gland plate bottom, can form the spacing effect of tractive, it is not hard up to prevent semi-arc loading board upwarp, and be equipped with spacing clamp plate between two traction rod cardboards, make spacing clamp plate fix the traction rod in the traction rod cardboard, guarantee stability, and the mounting means of spacing clamp plate adopts the bolt spiro union, do not atress in the spiro union direction, the bolt is difficult to become flexible, can guarantee longer time stability, reduce the maintenance number of times, prolong maintenance cycle, staff's intensity of labour is reduced.

Drawings

FIG. 1 is a schematic structural diagram of a cable damper according to an embodiment of the present invention;

FIG. 2 is a schematic side view of a cable damper according to an embodiment of the present invention

FIG. 3 is a schematic cross-sectional view taken along the direction A in FIG. 1;

in the above fig. 1-3, 1, the cable mounting sleeve; 11. a semi-arc bearing plate; 12. pressing a cover plate by a half arc; 121. a traction rod; 122. a limiting block; 13. hinging a shaft; 14. a rubber inner liner; 2. a connecting plate; 21. a traction rod clamping plate; 3. a weight balancing component; 4. a limiting pressure plate; 41. and (4) bolts.

The specific implementation mode is as follows:

the invention is further described below with reference to the accompanying drawings.

Examples

As shown in fig. 1-3, a cable shockproof hammer comprises a cable mounting sleeve 1, a weight balance assembly 3, and a connecting plate 2 for connecting the cable mounting sleeve 1 and the weight balance assembly 3, wherein the cable mounting sleeve 1 comprises a semi-arc bearing plate 11 and a semi-arc gland plate 12, which are hinged to each other, a hinge shaft 13 is arranged between the semi-arc bearing plate 11 and the semi-arc gland plate 12, the semi-arc bearing plate 11 and the semi-arc gland plate 12 are hinged to each other through the hinge shaft 13, the connecting plate 2 is fixedly connected to the bottom of the semi-arc bearing plate 11, two sides of the connecting plate 2 are provided with symmetrically distributed draw bar clamping plates 21, the draw bar clamping plates 21 are fixedly connected to the connecting plate 2, two ends of the bottom of the semi-arc gland plate 12 are provided with draw bars 121 corresponding to the positions of the draw bar clamping plates 21, the draw bars 121 are fixedly connected to the semi-arc gland plate, a limiting pressing plate 4 is arranged on the front surface of the connecting plate 2 and close to the space between the two traction rod clamping plates 21, and the limiting pressing plate 4 is fixed with the connecting plate 2 in a threaded mode and used for clamping the traction rod 121 into the traction rod clamping plates 21.

In the embodiment, by arranging two mutually hinged half-arc bearing plates 11 and half-arc gland plates 12, when in installation, the half-arc bearing plates 11 are leaned against the outer wall of a cable, then the half-arc gland plates 12 are turned over to enable the half-arc bearing plates 11 and the half-arc gland plates 12 to be pressed and clamped mutually, the traction rods 121 at the bottoms of the half-arc gland plates 12 are wound at the inner sides of the traction rod clamping plates 21 on the connecting plates 2, the traction rods 121 are elastic steel bars and are welded at the bottoms of the half-arc gland plates 12, due to elasticity, the bottoms are welded and fixed with the limiting blocks 122, the action of traction limiting can be formed, the half-arc bearing plates 11 are prevented from upwarping and loosening, a limiting pressure plate 4 is arranged between the two traction rod clamping plates 21, the limiting pressure plate 4 is used for fixing the traction rods 121 in the traction rod clamping plates 21 to ensure stability, and the mounting mode of the, the stability for a longer time can be ensured, the maintenance times are reduced, the maintenance period is prolonged, and the labor intensity of workers is reduced.

As shown in fig. 2, specifically, the arc length of the half-arc bearing plate 11 is greater than pi, the arc length of the half-arc gland plate 12 is less than pi, the sum of the half-arc bearing plate 11 and the half-arc gland plate 12 is less than 2 pi, the arc length of the half-arc bearing plate 11 is greater than the arc length of the half-arc gland plate 12, the half-arc bearing plate 11 is welded and fixed on the top of the connecting plate 2, then the top is hinged to the half-arc gland plate 12, when the half-arc gland plate 12 is pressed downwards, the sum of the half-arc bearing plate 11 and the half-arc gland plate 12 is less than 2 pi, a part of allowance can be reserved, and a cable can.

As shown in fig. 2, specifically, rubber inner bushings 14 are fixedly bonded to inner side walls of the half-arc bearing plate 11 and the half-arc gland plate 12, the inner side walls of the rubber inner bushings 14 have anti-slip lines, and the rubber inner bushings 14 are arranged on inner sides of the half-arc bearing plate 11 and the half-arc gland plate 12, so that friction between the cable installation sleeve 1 and a cable can be increased, and the cable installation sleeve 1 is prevented from slipping and rotating on the cable.

As shown in fig. 2 and 3, specifically, the traction rod clamping plate 21 is in a semi-arc shape, a cavity for accommodating the traction rod 121 is formed between the traction rod clamping plate 21 and the connecting plate 2, the shortest gap between the traction rod clamping plate 21 and the connecting plate 2 is greater than the diameter of the traction rod 121, a hook is formed between the traction rod clamping plate 21 and the connecting plate 2, the cavity for accommodating the traction rod 121 can be formed, the traction rod 121 can be installed in the cavity through the gap, and the clamping is performed, so that the stability between the half-arc bearing plate 11 and the half-arc gland plate 12 is ensured, and the clamping manner is simpler and more stable.

As shown in fig. 2 and 3, specifically, the bottom of the traction rod 121 is fixed with a disc-shaped limiting block 122, the diameter of the limiting block 122 is larger than the outer diameter of the traction rod clamping plate 21, the limiting block 122 is arranged at the bottom of the traction rod 121, the limiting block 122 can be matched with the traction rod clamping plate 21 for limiting, the traction rod 121 is prevented from sliding in the traction rod clamping plate 21, and the stability between the semi-arc bearing plate 11 and the semi-arc gland plate 12 is ensured.

As shown in fig. 1 and 3, specifically, the screw hole has been seted up to the intermediate position department of spacing clamp plate 4, and installs bolt 41, and spacing clamp plate 4 passes through bolt 41 spiro union with connecting plate 2 and fixes, and spacing clamp plate 4 is used for fixing traction rod 121 in traction rod cardboard 21, guarantees stability, and the mounting means of spacing clamp plate 4 adopts bolt 41 spiro union, and is not atress in the spiro union direction, and bolt 41 is difficult not hard up, can guarantee longer stability.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. A cable stockbridge damper comprises a cable mounting sleeve (1) sleeved on a cable, a weight balance assembly (3) and a connecting plate (2) used for connecting the cable mounting sleeve (1) and the weight balance assembly (3), and is characterized in that the cable mounting sleeve (1) comprises a semi-arc bearing plate (11) and a semi-arc gland plate (12) which are hinged with each other, a hinge shaft (13) is arranged between the semi-arc bearing plate (11) and the semi-arc gland plate (12), the semi-arc bearing plate (11) and the semi-arc gland plate (12) are hinged with each other through the hinge shaft (13), the connecting plate (2) is fixedly connected with the bottom of the semi-arc bearing plate (11), two sides of the connecting plate (2) are provided with symmetrically distributed traction rod clamping plates (21), and the traction rod clamping plates (21) are fixedly connected with the connecting plate (2), the position that the bottom both ends of half arc gland plate (12) correspond pull rod cardboard (21) is equipped with pull rod (121), pull rod (121) with half arc gland plate (12) fixed connection, pull rod (121) block is installed pull rod cardboard (21) are inboard, the front surface of connecting plate (2) is close to two be equipped with spacing clamp plate (4) between pull rod cardboard (21), spacing clamp plate (4) with connecting plate (2) spiro union is fixed, be used for with pull rod (121) block extremely in pull rod cardboard (21).

2. A cable damper according to claim 1, characterized in that the arc length of the semi-arc carrier plate (11) is greater than pi, the arc length of the semi-arc gland plate (12) is less than pi, and the sum of the semi-arc carrier plate (11) and the semi-arc gland plate (12) is less than 2 pi.

3. The cable damper according to claim 1, wherein the inner side walls of the semi-arc bearing plate (11) and the semi-arc gland plate (12) are fixedly bonded with an inner rubber bushing (14), and the inner side wall of the inner rubber bushing (14) is provided with anti-skid threads.

4. A cable damper according to claim 1, characterized in that the draw bar catch plate (21) is semi-circular arc shaped, a cavity for accommodating the draw bar (121) is provided between the draw bar catch plate (21) and the connection plate (2), and the shortest gap between the draw bar catch plate (21) and the connection plate (2) is larger than the diameter of the draw bar (121).

5. The cable damper according to claim 1, wherein a disc-shaped stopper (122) is fixed to the bottom of the pulling rod (121), and the diameter of the stopper (122) is larger than the outer diameter of the pulling rod clamping plate (21).

6. The cable damper according to claim 1, wherein a screw hole is formed in the middle of the limiting pressure plate (4) and a bolt (41) is installed, and the limiting pressure plate (4) and the connecting plate (2) are fixed through the bolt (41) in a threaded manner.