Double beam bridge crane
Routine inspection to eliminate double beam bridge crane safety accidents
Bridge crane are generally work in the workshop, warehouse and material field, its the name from the two ends of tall cement column and metal stent, the shape and the bridge is more like, so called bridge crane. The characteristics of the bridge crane is to make full use of space below the bridge, not affected by ground equipment, is a popular hoisting machinery currently.
Safety inspection specification
The safety inspection of bridge crane in order to ensure the safe operation of the bridge crane, During the operation of the crane to carry out a number of safety routine inspection, inspection items and key points are as follows:
- The lifting height is limited, the travel limit switch and interlock mechanism are normal, safe and reliable.
- The main components meet the safety requirements: Opening increased by less than 15% of the original size, the torsional deformation is less than 10%: Plate hook bushing wear less than 50% of the original size, plate hook mandrel wear less than 5%, no peeling, burr, welding. Hooks and pulleys haven’t obvious defects. Broken wire in a twist within less than 10% of the total number of silk, no broken, no significant thinning, no core out, dead twist, extrusion deformation, annealing, burning phenomenon. At the end of the wire rope connecting and fixing clips, clips, wedge connection is intact, no loose plate, not less than 2, the number of not less than 3 clips. No crack, connection, fixed without loosening; The wear of the cylinder wall is less than 20% of the original wall thickness, and the safety volume is not less than 2 cycles; Reel and wire rope diameter ratio to meet the requirements. Balance wheel fixed well, wire rope should meet the requirements. Brake without cracks, no loose, no serious wear and tear, brake clearance on both sides of the appropriate size, there is sufficient braking force, brake wear less than 50% of the original thickness.
Through the safety inspection of the bridge crane, to prevent personal accidents, reduce equipment accidents, improve equipment operation rate, reduce maintenance costs have played a significant role.