Bridge crane bridge crane safety inspection in order to ensure the safe operation of the crane during operation must perform some routine security check items and points are as follows:
(A) lifting height limiter, travel limit switch and the positive performance of interlocking institutions
Chang, safe and reliable.
(2) meet the safety requirements of the main parts: opening increases less than 15% of the original size, torsional deformation of less than 10%; plate hook bushing wear less than 50% of the original size, plate hook spindle wear less than 5%, no peeling , burrs, welding. Hand Pallet Truck hook and pulley no obvious defects. The surface of the wire rope wear, corrosion is less than 40% of the diameter of the wire, broken wire in a twisting pitch of less than 10% of the total number of wires, no breakage, no thinning, no core prolapse, dead twisting, extrusion , annealing, burning phenomenon. Rope end connections and fixed clamp, plate, wedge block connection intact, no loose, plate no less than two, no less than three clips. Roll no cracks, connections, fixed no loose; cylinder wall wear less than 20% of the original thickness; secure volume of not less than two laps, drum and rope diameter ratio meets the requirements. Balance wheel fixed intact, wire rope shall conform to the requirements. Brakes no cracks, no loose, no serious wear, brake clearance is equal on both sides of the right size, there is sufficient braking force, brake band wear less than 50% of the original thickness.
Through the bridge crane safety routine inspection, to prevent accidents, reduce equipment accidents, improve equipment operation rate, lower maintenance costs etc. played a significant role.