Introduction sheave grooves manufacturing specifications

       Universal  gantry crane  pulley from the rim, spokes, hub composed rim rope through the rope groove to carry the entire pulley wheels fixed through the pulley shaft bearing on the rim with the spokes connected to the hub wheel, pulley for rope role is now combined with the pulley structure and size to achieve, rope groove to accommodate the rope as the main part, the force necessary to ensure the smooth passage of rope, but also to ensure that the crane body vibration operating conditions, wire rope pulley is not rolling over quit, pulley rope groove manufacturing process description:
    1, the rope groove radius, is about 0.53-0.6 times the diameter of the bearing rope, the common  bridge gantry crane  wire rope grooves with a sufficient contact area to reduce rope pressure on the rope groove.
    2, rope groove side angle of 35 degrees -40 degrees generally allow the axis of the pulley has some skewed to facilitate universal gantry crane rope to wear around the upper and lower pulleys, rope groove side to avoid excessive wear.
    3, the rope groove height, to ensure sufficient depth rope groove, the wire rope passes through the slot to prevent the pulley mechanism with the rope running jitter quit.
    4, the diameter of the pulley is calculated by common center computing gantry crane rope winding diameter pulley, which is a key dimension affecting life rope, wire rope and metal fatigue fracture occurs, mainly due to the deflection pulleys and off repeatedly when the spool bending caused pulley and  hoist crane  wire rope diameter ratio is to determine the life of important factors.