A cable structure capable of high-speed rotation

Abstract

The invention belongs to the field of helicopter tail rotor electrical design, and particularly relates to a cable structure capable of rotating at a high speed. Since the helicopter tail rotor has ahigh revolving sped and a big rotation radius, a cable used for tail rotor blade electrical transmission can be under an obvious centrifugal effect, and a cable abrasion problem is serious. The cablestructure capable of rotating at the high speed comprises a connector on an end part, and a conductor bundle, wherein an aramid fiber weaving sheath is sheathed to the outer side of the conductor bundle; the outer side of the aramid fiber weaving sheath is sheathed with a spring; the outer side of the spring is sheathed with an outer sheath; the spring and the outer sheath are of an integral structure; and two end parts of the spring and the connector are connected; and adhesive is coated to a proper position in the connector to splice the spring and the aramid fiber weaving sheath. By use ofthe cable structure, the outer sheath can be prevented from deforming, stress concentration is avoided, and a tensile function is performed. The cable exhibits good abrasive resistance and tensile property.

Description

technical field [0001] The invention belongs to the field of electrical design of a helicopter tail rotor, and in particular relates to a high-speed rotating cable structure. Background technique [0002] Due to the high speed and large radius of rotation of the tail rotor of the helicopter, the cables used for the electrical transmission of the tail rotor blades are subject to significant centrifugal effects. After a period of use, the layers of the cable structure are prone to wear or breakage. Moreover, in order to adapt to the variable pitch of the tail rotor blades, there should be a margin in the length of the cable, which is inconvenient to completely fix the tail rotor structure, which further aggravates the use conditions of the cables, causing the cables to be in frequent vibration environments, and the problem of cable wear is more prominent . In order to solve the reliability problem after long-term use, it is necessary to design an applicable cable structure. ...

AI Technical Summary

Problems solved by technology

[0002] Due to the high speed and large rotation radius of the tail rotor of the helicopter, the cables used for the electrical transmission of the tail rotor blades are subjected to obvious centrifugal effects. After a period of use, the layers of the cable structure are prone to wear or breakage.

Moreover, in order to adapt to the variable pitch of the tail rotor blades, there should be a margin in the length of the cable, which is inconvenient to completely fix the tail rotor structure, which further aggravates the use conditions of the cables, causing the cables to be in frequent vibration environments, and the problem of cable wear is more prominent

In order to solve the reliability problem after long-term use, it is necessary to design an applicable cable structure

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