CN222897040U

CN222897040U - Pre-twisted cable vibration damper

Info

Publication number: CN222897040U
Application number: CN202421824010.2U
Authority: CN
Inventors: 冼波
Original assignee: Guilin Tiandi Optical Fiber Communication Co ltd
Current assignee: Guilin Tiandi Optical Fiber Communication Co ltd
Priority date: 2024-07-30
Filing date: 2024-07-30
Publication date: 2025-05-23
Anticipated expiration: 2034-07-30

Abstract

The utility model discloses a preformed armor rod cable damper which comprises a wire clamp for hanging a left hammer head and a right hammer head on a cable, wherein the wire clamp comprises a fork body with a V-shaped fork at the top, a V-shaped groove is formed in the V-shaped fork, a rope hole is formed in the bottom of the fork body, N strands of wire protection strips are wound on the cable and then are arranged in the V-shaped fork of the fork body, a plurality of preformed armor rods are arranged in the V-shaped groove in a penetrating mode, the preformed armor rods are spirally wound on the wire protection strips to fixedly connect the wire clamp on the cable, the left hammer head and the right hammer head are connected through steel ropes, the steel ropes are arranged in the rope holes of the fork in a penetrating mode, and the wire clamp and the wire protection strips are made of non-magnetic aluminum alloy materials. The utility model has good protection effect, can further improve the running quality and service life of the circuit, is convenient to install and operate, has good anti-loosening effect, can be installed and disassembled by operators at high altitude without any tool, and is more convenient when the installation position is changed.

Description

Pre-twisted cable damper

Technical Field

The utility model relates to an electric power fitting, in particular to a preformed cable damper for preventing cable vibration, which is a protection tool for an overhead power line.

Background

The traditional damper is fixed on the cable by adopting a bolt, for example, the patent of the utility model of the damper for ADSS optical cable with the publication number of CN2682435Y is entitled, a torque wrench is required to be equipped when the wire clamp is installed at high altitude, and the condition of overlarge torque or overlarge torque is easy to occur due to manual operation.

The too big damage that can cause cable or bolt of moment of torsion, the moment of torsion is too little, and then the holding power between damper and the cable can not reach standard, even the holding power between damper and cable has reached the requirement when the installation, but along with the vibration of cable and damper in the circuit operation, the stress relaxation of cable and bolt, the holding power between cable and damper reduces, can cause the loosening of damper fastener.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model aims to solve the technical problem of providing a preformed cable damper which ensures the stability and reliability of connection and is convenient to install and detach.

Can solve the preformed armor cable damper of above-mentioned technical problem, its technical scheme includes hangs left tup and right tup on the fastener on the cable, and what the difference is:

1. the wire clamp comprises a fork body with a V-shaped fork at the top, a V-shaped groove is formed in the V-shaped fork, and a rope hole is formed in the bottom of the fork body;

2. The cable is wound with N strands of protection lines and then is arranged in a V-shaped fork of the fork body, a plurality of pre-twisted wires of the compression strips are arranged in the V-shaped groove in a penetrating mode, and the pre-twisted wires of the compression strips are spirally wound on the protection lines to fixedly connect the wire clamp to the cable.

3. The left hammer head and the right hammer head are connected through a steel twisted rope, and the steel twisted rope is arranged in a rope hole of the wire clamp in a penetrating manner.

Further, one hammer head has a large mass and the other hammer head has a small mass, and the length of the steel strand between the large mass hammer head and the wire clamp is shorter than that between the small mass hammer head and the wire clamp.

Further, each hammer has a tuning fork shape.

Further, the wire clamp and the wire guard bar are made of non-magnetic aluminum alloy materials.

The utility model has the beneficial effects that:

1. The preformed type cable damper has good protection effect, can further improve the running quality and service life of the circuit, and has convenient installation and operation and good anti-loosening effect.

2. In the structure of the utility model, the guard bar and the wire clamp which are contacted with the cable are made of non-magnetic aluminum alloy materials, and hysteresis and eddy current loss are not existed.

3. The utility model can not slip, loosen and the like in the running process to influence the vibration-proof effect.

4. The utility model is very convenient in operation, an operator can install and detach the device at high altitude without any tool, and the device is more convenient in changing the installation position.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is a sectional view a-a in fig. 1.

The drawing marks comprise 1 part of left hammer head, 2 parts of right hammer head, 3 parts of cable, 4 parts of cable clamp, 4-1 parts of V-shaped groove, 4-2 parts of rope hole, 5 parts of compression bar preformed armor rods and 6 parts of steel twisted rope. 7. Line guard

Detailed Description

The technical scheme of the utility model is further described below with reference to the embodiment shown in the drawings.

The preformed cable damper comprises a wire clamp 4 for hanging a left hammer head 1 and a right hammer head 2 on a cable 3, wherein the appearance of each hammer head is tuning fork-shaped, as shown in figure 1.

The wire clamp 4 (made of nonmagnetic aluminum alloy materials) comprises a left vertical fork body and a right vertical fork body which are transversely arranged, the top of the fork body is a formed V-shaped fork, a V-shaped groove 4-1 is formed in the V-shaped fork, and a rope hole 4-2 is formed in the bottom of the fork body, as shown in figures 1 and 2.

The cable 3 is wound with a section of wire guard 7 (composed of ten strands of non-magnetic aluminum alloy wires, the specific number of the wire guard is determined by the cable diameter of the cable 3) and then is arranged in the V-shaped fork of the fork body, 4 pre-twisted wires 5 of the compression strip are arranged in the V-shaped groove 4-1 of the V-shaped fork in a penetrating way, the pre-twisted wires 5 of the compression strip exposed at the left side and the right side of the V-shaped fork are spirally wound on the wire guard 7 manually, so that the wire clamp 4 and the cable 3 are bound together, and the binding length of the pre-twisted wires 5 of the compression strip is 600mm, as shown in figure 1.

A section of steel stranded rope 6 is penetrated and fixed in a rope hole 4-2 of the fork body, the left end and the right end of the steel stranded rope 6 are respectively connected with a left hammer head 1 and a right hammer head 2, the mass of the left hammer head 1 is larger than that of the right hammer head 2, the length of the steel strand 6 between the large mass hammer and the wire clamp 4 is shorter than the length of the steel strand between the small mass hammer and the wire clamp 4, as shown in fig. 1.

The implementation of the utility model can be finished by bare hands without any tool, the installation is convenient and quick, the protective wire 7 is additionally arranged between the V-shaped fork of the wire clamp 4 and the cable 3 to serve as a protective layer, the protective layer plays an important role in protecting the cable 3 from abrasion, the continuous stable and reliable binding holding force between the wire clamp and the cable 3 is ensured by the compression strip preformed armor rod 5, the binding holding force between the compression strip preformed armor rod 5 and the cable 3 is uniformly dispersed in a length area of 600mm, and the stress concentration connected with the cable is avoided.

Claims

1. The utility model provides a preformed armor cable damper, includes hangs fastener (4) on cable (3) left tup (1) and right tup (2), its characterized in that:

The wire clamp (4) comprises a fork body with a V-shaped fork at the top, a V-shaped groove (4-1) is formed in the V-shaped fork, and a rope hole (4-2) is formed in the bottom of the fork body;

N strands of wire protection strips (7) are wound on the cable (3) and then are placed in a V-shaped fork of the fork body, a plurality of compression strip preformed armor rods (5) are arranged in the V-shaped groove (4-1) in a penetrating mode, and the compression strip preformed rods (5) are spirally wound on the wire protection strips (7) to fixedly connect the wire clamp (4) to the cable (3);

The left hammer head (1) and the right hammer head (2) are connected through a steel stranded rope (6), and the steel stranded rope (6) is fixedly arranged in a rope hole (4-2) of the fork body in a penetrating mode.

2. The preformed wire vibration damper according to claim 1, wherein one hammer head has a large mass and the other hammer head has a small mass, and the length of the steel strand (6) between the large mass hammer head and the wire clamp (4) is shorter than the length of the steel strand (6) between the small mass hammer head and the wire clamp (4).

3. The preformed wire cable vibration damper of claim 2 wherein each hammer head has a fork-like shape.

4. The preformed type cable damper according to any one of claims 1 to 3, wherein the wire clamp (4) and the wire guard bar (7) are made of non-magnetic aluminum alloy materials.