Port crane is a kind of lifting equipment specially used for port cargo handling, container lifting and other operations. Because it has the advantages of stable transmission, high work efficiency, easy operation, and low failure rate, it is widely used in port operations and has become one of the important conditions for measuring the advanced level of ports. The classification of port cranes can be divided into three categories: portal, fixed, and marine.
(1) Case 1, normal operation without wind, mainly calculating the heating of the motor, wear and pitting of the wheels, rails, support rollers, gears and other parts, fatigue of the transmission parts and support parts of the mechanism.
(2) Case 2, normal wind conditions, mainly calculating the power of the motor; static strength, static stiffness and instability of transmission parts and supporting parts; checking the overload capacity of the motor; calculating the input power of the reducer and selecting a deceleration Determine the braking torque of the brake; check the crane's entire machine and local anti-overturning stability in the working state.
(3) Case 3, the working condition of special load is mainly used to check the anti-overturning stability and wind-skid safety of the crane in the non-working state; the transmission parts, support parts and anti-overturning of the mechanism subjected to wind load Check the device and the anti-slip device; select and verify various safety devices.
