What are the standards for rail pressing plates in the field of cranes?
rail pressing plates are widely used in the field of construction machinery, and cranes are special equipment with high risks. There are national standards for structural design, manufacturing, and inspection, while rail pressing plates have no design or standard specifications. In the safety accidents of cranes, many are caused by the failure of the fixing of the rail pressing plates.
Stress Analysis of rail pressing plates The bridge crane lifts objects with hooks, grabs, or electromagnets, transfers the load to the wheels through the bridge, and contacts the track through the wheels so that the load is carried by the crane rail track, track pressure plate, support beam, etc. transmitted to the ground. The acting force is analyzed in three directions. That is longitudinal, lateral, and vertical forces.
When the crane is static, the track pressure plate is only affected by its own weight, rated load, and the position of the center of gravity of the truss; and when it is dynamic, it is affected by load lifting, starting acceleration, uneven wheel tread, uneven track tread, and undulating track joints. , causing shock and vibration of the crane.
