Hook vibration prevention hammer

Abstract

The hook shockproof hammer of the invention relates to a protecting tool which absorbs the vibration energy of the aerial cable, and is especially suitable for the hook shockproof hammer used by the optical cable circuit. The structure of the hook shockproof hammer comprises a hook, a pre-twisted wire, a steel twisted wire, a bug hammerhead and a small hammerhead; the hook body at the upper part of the hook is sleeved on the cable, the upper part of the hook body of the hook is arranged with a through hole, the pre-twisted wire traverses the through hole at the upper part of the hook and is permanent-connected with the cable; the lower part of the hook is arranged with a through hole, the middle part of steel twisted wire is fixed in the through hole at the lower part of the hook, the two ends of the steel twisted wire respectively extend into the inner bottom of the large and small hammerheads and are permanent-connected with the connecting glue. The protecting tool of the invention has the advantages of being able to reduce the problem of large compression stress of the shockproof hammer to part of the cable, changing the rigid connection of the bolt connection to a flexible connection, strengthening the self-damping of the cable, effectively preventing the phenomenon of the shockproof hammer sliding because of the loosening of the screw, broader covering area of the frequency, better high-frequency response, being able to satisfy the special shock-proof request to power thereby ensuring the safe operation of the circuit.

Description

technical field [0001] The hook type anti-vibration hammer of the invention relates to a protection tool for absorbing the vibration energy of an overhead cable, and is especially suitable for a hook type anti-vibration hammer for an optical cable line. Background technique [0002] On the high and low voltage transmission lines in China, the conductor and ground wires are installed between the poles and towers, and there is a certain sag. Because the line is affected by wind vibration for a long time, this puts forward high requirements on the connection method of the anti-vibration hammer. The main structure of the existing anti-vibration hammer is to adopt splints and bolts to connect with cables. This connection method will loosen the screws under the breeze vibration for a long time, and the anti-vibration hammer installed on the guide and ground wires often slips to the middle of the line span during line operation. Therefore, the anti-vibration hammer cannot have it...

AI Technical Summary

Problems solved by technology

Therefore, the anti-vibration hammer cannot achieve its due anti-vibration effect, but directly affects the normal operation of the transmission line and the service life of the line

Moreover, this bolt-type connection is a rigid connection, which puts a lot of pressure on the cable side, which is likely to cause stress concentration and cable damage.

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