Understand the basic mechanical properties of the crane rail

Edit:Zongxiang Heavy Industry--Ethan Date:2018-11-28 14:23:54

Crane rails are the most popular rail products on the market today, they are the key equipment to ensure the production effect. For the basic mechanical properties of the crane rails, I hope you understand the following knowledge.

Due to the high rigidity of the crane rail and the corresponding bending deformation, the dynamic effect of the train wheel on the crane rail mostly acts on the wheel-rail contact area, and the longitudinal normal stress generated by the rail tip is far due to the torsion center of the heavy rail approaching the bottom of the rail. Longer than the longitudinal normal stress at the bottom of the rail, thus accelerating the development of the trajectory rail head disease. Generally speaking, the heavier the rail, the less the number of damage to the crane rail, but the proportion of the total number of contact fatigue damage increases. For example, after the heavy rail of the fomer Soviet Union was realized, the total number of crane rail damages was greatly reduced, but the rail head injuries of 50kg/m, 65kg/m and 75kg/m rails accounted for 75%, 80% and 94% of the total damage.

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