The socket-type suspension plate is a critical connecting component in power transmission lines, primarily used to link insulator strings with other elements such as suspension clamps and tension clamps. Below is a detailed description of the socket-type suspension plate:
Structure: Socket-type suspension plates typically consist of a socket body, locking pins, and connecting bolts. The socket body is a forged steel component with a cap socket and a connecting structure. The cap socket interfaces with the ball socket of ball-and-socket insulators, while the connecting structure attaches to single-plate connecting fittings in insulator strings. The locking pin secures the insulator’s ball head within the socket after assembly, preventing displacement. The connecting bolt enables flexible articulation between the socket-type suspension plate and other single-plate connecting fittings.
Materials and Processes: Socket-type suspension plates are generally made from high-strength alloys like Q345 alloy steel, known for superior strength. Surfaces are hot-dip galvanized with a zinc coating thickness ≥90 μm, significantly enhancing corrosion resistance. This treatment ensures suitability for various harsh outdoor conditions, with weather resistance lasting 20–30 years.
Critical mating surfaces (e.g., the ball head and spherical interface) undergo precision grinding to achieve a surface roughness ≤ Ra 0.8 μm, ensuring smooth rotation without jamming.