常见的SEW齿轮减速机.ppt

Voith Turbocoupling with constant filling Principle of a Voith Turbocoupling Motor Pump Turbine coupling Oilflow Turbinewheel Pumpenwheel Voith Turbocouplings with constant filling Basic design Pump wheel Turbine wheel Outer shell Voith Turbocoupling Type T Operating conditions Normal rating stationary starting Torque characteristic dependent of the degree of filling Primary characteristic 2 filling 80% M1 Secondary characteristic 1 0 100 n1 % Mnom 70% 60% 50% 40% M2 Mnom Mnom 0 100 n1 % S Slip Basic designs of constant filled couplings T TV/TVV TVVS Voith Turbocoupling Type TRI und TVRI Without or with delay chamber; with support vee-belt pulley Characteristic curves TM TL TK TN TL J = = = = = = Motortorque Loadtorque Couplingtorque Rated torque const. const. Run up driven mach. Motortorque Motor run up Motorspeed Speed time 5 Sec. 40 Sec. 2 1 0 2 1,6 1,4 1 TK TM TK TL T/TN T/TN T/TN Power transmission diagram Silumin hor quenched Motorspeed [min-1] Rated power 3200 [ KW ] 1600 800 400 200 75 55 30 15 7,5 3 1,5 0,37 0,55 300 400 600 800 1500 2000 4000 3000 1150 D 1150 1000 866 750 650 562 487 422 366 274 D 274 206 D 206 154 D 154 50 Hz 60 Hz 600 750 900 1800 3600 Example: Motorspeed 1500 min -1 Rated power 55 kW = Coupling size 422 inner- / outerwheel drive - definition inner wheel outer wheel motor motor output input power outer wheel inner wheel gear inner wheel outer wheel motor Inner Wheel drive Outer Wheel drive inner- / outerwheel drive – differences I lower - specially during startup and when machine is blocked allways best possible heat dissapation emptying delay chamber depends on machine startup in case of conveyor overload startup can be problematic always same startup behaviour startup (TV; TVV) drive has to be turned in order to do maintanance easy – outer parts can be turned even if brake is closed filling filling control high inertia on gear side smal inertia on gear side ? less shocks in case of sudden machine blockag