Rotary clamp for vibration hammer with weak rotating resistance

Abstract

The invention provides a rotary clamp for a vibration hammer with weak rotating resistance. The rotary clamp comprises an inner shell for clamping a conductor, an outer shell, and a rotating part arranged between the inner shell and the outer shell. The inner shell penetrates the cavity of the outer shell. An annular gap is arranged between the inner shell and the outer shell, and the inner shelland the outer shell are not in contact with each other. The axial center line of the inner shell coincides with the axial center line of the outer shell. The rotating part is arranged in the annular gap. The rotating part rotates relative to the inner shell. The rotating part enables the conductor clamped the rotary clamp of the vibration hammer to have a good rotating effect. When the rotary clamp is used together with a suspension clamp with weak rotating resistance and a spacer bar with weak rotating resistance, the non-uniformity of ice coating of the conductor under the weather conditionsof rain and snow can be reduced, the galloping of the conductor can be restrained, and the safe operation level of the lines and power grid can be improved.

Description

technical field [0001] The invention relates to the technical field of power transmission, in particular to a swivel clamp for an anti-vibration hammer with weak rotational resistance to prevent galloping of overhead transmission line conductors. Background technique [0002] Overhead transmission lines (referred to as lines) are important equipment for transmitting electric energy. They are composed of iron towers, wires, overhead ground wires and other components. The wires of the AC line include A, B, and C phases, and the wires of the DC line include positive and negative poles. Under certain icing and strong wind conditions, uneven eccentric icing can be formed on the conductor, which changes the aerodynamic performance of the conductor and easily causes large-scale vibration of the conductor, which is vividly called galloping. Galloping can reduce the distance between conductors and cause discharge tripping; it can also increase the tension of conductors and cause towe...

AI Technical Summary

Problems solved by technology

Since the wire clip of the conventional anti-vibration hammer is a fixed wire clip, and the hammer head of the anti-vibration hammer is hung directly below the wire, the anti-vibration hammer has a restrictive effect on the rotation of the wire

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