Key points of coupling alignment (XNUMX)

 UnitedShaftIn actual use, both ends need to be aligned, ifCenteringDeviation,willproduceVibration and noise, rolling bearing damage, motor rotor rubbing, shaft sealing damageOil spill、轴DeformationWait for a series of common failures to reduce the service life of machinery and equipment,increaseMaintenance costs.therefore,UnitedShaft alignment ismachineEquipment orpartThe key step of dismantling.

    When the coupling is aligned, the relative direction of the coupling is judged by measuring the axial offset of the two sections of the coupling and the offset of the focus point.installationWhen equipment, first putMachine bodyAfter the design elevation of the direction is adjusted and the ground leveled, carry outUnitedAlignment of the shaft device.

    After measurement andanalysis, To judge the error and leakage condition, adjust the shaft direction of the transmission device so that the driving shaft and the driven shaft are the sameHeartParallel againstatus.Depending on the special tools commonly used during measurement, there are several methods for coupling alignment.

    1, Simple alignment method

    Use a scale and feeler gauge to measure the axial deviation of the two sections of the coupling, and use a plane drawing gauge and a tapered gauge to measure the radial deviation of the two sections of the coupling.Measure on the top, bottom, left and right of the coupling4Separate development in each direction.Although this method is simple but the precision is not high, it is only suitable for low-speed gears where the precision is too low.

    2, Application center card sample feeler gauge measurement centering

    It is a device for measuring the axial and radial deviation of the two-section coupling by using the card-like feeler gauge of the management center.This method can measure the axial and radial deviation of the coupling together, and its actual operation is convenient and precise.However, because of the different structure and specifications of the coupling, the management center card does not have a standard specification, and it is usually produced and manufactured by the maintenance equipment staff independently. This measurement method is not efficient.

    3, Dial indicator measurement method for centering

The measuring method of dial indicator is common when measuring the centering of the coupling. This is to install the meter frame on the standard half coupling, and use the dial indicator to measure the axial and radial deviation of the coupling. Wrong or missing value.Because the precision of the myopia of the dial indicator is, the measurement precision of the coupling alignment is further improved.Common dial indicator measurement methods include single-meter measurement method, double-meter measurement method, three-meter measurement method and five-meter measurement method.