cooc

* Motor power calculation of hoisting device (Indoor EOC) * Hoisting speed : V = m/min * Rated load : R = ton * Hook(attachment) weight : A = ton * No. of wire rope fall : N = fall * Wire rope reeving efficiency : Er = (Refer to N & sheave bearing) * Wire drum efficiency : Ed = (Refer to wire drum bearing) * Gear reducer efficiency : Eg = (Refer to gear reducer stage no.) * Used motor power : Pu..

* Bridge drive(travelling) speed(min) : V = m/min * Bridge drive(travelling) speed(sec) : Vs = m/sec * Rated load : R = ton * Hook(attachment) weight : A = ton * Trolley self weight : T = ton (trolley frame & trolley drive & hoisting device & acc.) * Bridge self weight : B = ton (girder & saddle(rocker) & bridge drive & acc.) * Bridge wheel dia. : Dw = cm * Bridge wheel shaft dia. : Ds = cm * Me..

* Coupling torque (input) calculation of bridge drive (Indoor EOC) * Bridge drive motor power : Pu = kw x set * Bridge drive motor rpm : N = rpm * Service factor : Sf = (% of motor torque) * Used coupling allowable torque : Tu = kg.m/set * Required coupling torque ( Calculated value ) * Required coupling torque Tc = kg.m

* Braking torque calculation of trolley drive (Indoor EOC) * Trolley drive motor power : Pu = kw x set * Trolley drive motor rpm : N = rpm * Requird brake safety factor : Sf = (% of motor torque) * Used braking torque : Tu = kg.m/set x set * Required braking torque ( Calculated value ) * Required braking torque Tb = kg.m

* Braking torque calculation of bridge drive (Indoor EOC) * Bridge drive motor power : Pu = kw x set * Bridge drive motor rpm : N = rpm * Requird brake safety factor : Sf = (% of motor torque) * Used braking torque : Tu = kg.m/set x set * Required braking torque ( Calculated value ) * Required braking torque Tb = kg.m < Tu = kg.m/set x set