The tension flange of crane beam

The tension flange of crane beam (or crane extension of tension chord) shall not be welded on the hanging equipment parts, and should not be on the spot at the lighter or welding jig. According to the provisions of the deceleration condition, bridge gantry crane properly selected base of the natural logarithm of multi rope friction wheel lifting equipment, the article conforms to the rated load of the pull wire rope with the friction between the friction wheel pad, raising and lowering design load in working braking coefficient; Force braking. Because in the process of lifting overhead gantry crane work not a - round Angle, degree; To appear empty container operation, in this condition, the rope dynamic antiskid safety factor; Such as emergency braking, according to hoisting rope sliding conditions not allowed by the raise the most unfavorable condition or than in accord with the rated load under the condition of raising and lowering a load side wire rope with light load side the cargo when the brake is more bad. Must, in accordance with big static tension ratio, therefore, the operating conditions for determining dynamic system of lifting equipment to work k - double container hollow container runtime allow dynamic boundary conditions. In addition, the balance weight single container to xu line, reduce the rope dynamic antiskid safety equipment, also according to the conditions on the difference of the counterbalance weight coefficient.