Helical-formed suspension clamp can act on the connection of various wires such as ADSS optical cables and OPGW optical cables in linear towers. In power engineering, it can protect optical cables, extend the service life of the lines, and assist in damping. The complete set of helical-formed suspension clamp consists of inner twisted wire, outer twisted wire, suspension head and rubber plus block, U-ring, aluminum casing, bolts, nuts, closed pins and other supporting connecting fittings. It uses hyperbolic waist drum-shaped damping pads to wrap the wires in the suspension place, which is particularly suitable for high-voltage lines, as well as heavy ice areas and large-span line projects.
The spiral thread used in helical-formed suspension clamp is a progressive force structure. When the fixture is in contact with the artifacts, the spiral surface is continuously wound or bonded to evenly disperse the gravity, vibration, impact and other loads of the artifacts to multiple contact points, avoiding the traditional rigid fixture due to single-point or line contact caused by stress concentration problems.
The forms of artifacts in industrial scenarios are diverse, and traditional fixtures usually need to be customized for specific artifacts, resulting in a wide variety of fixtures and frequent replacement, which not only increases costs, but also reduces production efficiency. The adaptability of helical-formed suspension clamp can solve this problem. The spiral structure can adjust the clamping range by rotation. For small artifacts, the spiral ring can be tightened to reduce the clamping space. For large or special-shaped artifacts, the spiral ring can be loosened and the arc of the spiral surface can be used to fit the irregular surface of the artifacts to form an adaptive package. This kind of strong adaptability can not only reduce the number of fixtures purchased, but also shorten the replacement time, indirectly improving the overall efficiency of the production line.
The core requirement of suspension operations is safety and stability. Any loosening or falling off may cause equipment damage and casualties. The spiral structure of helical-formed suspension clamp comes with a mechanical self-locking function, which is the key advantage that distinguishes helical-formed suspension clamp from other clamps. From the point of view of mechanical principles, the angle between the spiral and the axis is usually designed to be between 3° and 8°, which is less than the friction angle of the threaded pair. According to the self-locking conditions, when the artifacts gravity or external force tries to pull the fixture, the static friction between the spiral surfaces will prevent the spiral ring from loosening, forming the effect of tighter and tighter the force. In addition, the operation process of helical-formed suspension clamp is also safer. Workers only need to rotate and adjust the spiral through a wrench to complete the clamping or loosening, without relying on external power such as electricity and hydraulics, which reduces the risk caused by power system failure. At the same time, the visual structure of the spiral surface makes it easy for workers to visually check the clamping status to prevent accidents caused by hidden loosening.