The auxiliary effect of the drum gear coupling on the pump

   The main fuel pump also has a certain influence on the damage of the auxiliary drum gear coupling.Because the anchor bolts of the main fuel pump of this unit were not well fixed (found afterwards), the main and auxiliary screws of the main fuel pump had poor meshing phenomenon, which caused the auxiliary coupling to carry a relatively normal load. To be larger, speed up the damage of the auxiliary drum gear coupling.It is discovered and dealt with in time, which causes the unit to trip due to the fault during operation, which will cause the unit to lose its cranking after an emergency shutdown. The high temperature during shutdown will cause serious damage to the unit.The drum-shaped gear coupling has high elasticity (low rigidity, high flexibility), and the rotation angle is 10 degrees when bearing the nominal torque.maximumThe torque is 25 degrees, which can reduce the natural vibration frequency of the shaft system, change the torsional vibration characteristics of the diesel engine power unit shaft system, so that the diesel engine does not appear dangerous resonance speed within the required speed range. It can absorb and reduce the output torque of the diesel engine Fluctuation, for a diesel engine power unit equipped with a reduction gearbox, can reduce the impact on the gear surface when the torque changes, and extend the service life of the gear.