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Installation of gear coupling and coupling alignment principle

Author: Ever-Power Coupling Release Date: 2015-09-21 09:35 Click:
The principles to be followed when installing the gear coupling are: 1. If it is replaced on the original equipment, it should generally be in the same direction. 2. If it is a newly designed and manufactured equipment, it must be Under the premise of interference, install according to the principle that the more the inner and outer tooth joints, the more reliable the installation.

  The principles to be followed when installing the gear coupling are: 1. If it is replaced on the original equipment, it should generally be in the same direction. 2. If it is a newly designed and manufactured equipment, it must be Under the premise of interference, install according to the principle that the more the inner and outer tooth joints, the more reliable the installation.
  XNUMX. Coupling alignment principle
  The projection of the circle of the movable end face of the motor on the end face of the fixed end is approximately regarded as a perfect circle, because the distance from the center of the movable end to the end face of the fixed end is unchanged.
  If you want to meet at the same time, the axis of the movable end and the axis of the fixed end are on the same line, which is just an ideal alignment state.In actual alignment, set the allowable error first, and when the error generated during alignment is within the allowable error range, alignment ends.
  In many occasions, the lower detection point of the pump cannot be detected, and the alignment work cannot be performed.
  XNUMX. Radial alignment of the coupling
  When aligning the coupling, adjust the vertical direction first.The thickness of the front and rear foot pads can be calculated from the three-point detection data, and the offset of the two shafts can be detected.The outer edge diameter of the movable end coupling plus the distance from the outer edge of the coupling to the center of the rod hole of the axial dial gauge; the distance from the end face of the movable end coupling to the center of the front foot bolt of the movable end; The distance from the center of the rear foot bolt.From the above data, the thickness of the front and rear foot pads can be known.If the motor is higher than the fixed end, shim should be reduced; if the motor is lower than the fixed end, shim should be added.
  After adjusting the vertical direction, the detection data of each point has changed, it should be reset at the 1 point position, and the data of 2 and 3 points should be measured again.After adjustment, just check whether the sum is within the allowable error range.
  XNUMX. Axial alignment of the coupling
  Alignment in the horizontal direction does not need to calculate the amount of front and rear feet of the movable end, clear the axial and radial dial gauges at 1 o'clock, read the readings of the axial and radial dial gauges at 3 o'clock, and tap with a copper rod The movable end can adjust the axis.Observe the reading of the axial dial gauge first, tap the front and rear feet of the movable end with a copper rod, and adjust the axial reading at 3 o'clock to half of the original.Observe the reading of the radial dial gauge again, tap the middle of the movable end with a copper rod, and adjust the radial reading at 3 o'clock to half of the original.This requires repeated adjustments.The adjustment result should make the sum within the allowable error range.
  Four, three-point table method calibration steps
  (1) Fix the magnetic fixed seat, the measuring rod and the dial indicator on the couplings of the fixed end and the movable end respectively; (2) Turn the shaft to the 1 o'clock position, and clear the two dial indicators respectively; (3) Then turn the shaft to the 2 o'clock position and read the data; (4) Turn the shaft to the 3 o'clock position and read the data; (5) Calculate separately (6) Loosen the front and rear bolts of the motor, Pad the rear feet with thick gaskets, move the motor, try to make the two couplings close, and then tighten the front and rear bolts of the motor, clear the two dial gauge at 1 o'clock, and read at the 2 and 3 o'clock positions. The data is compared with the set allowable error value. If the accuracy requirements are not met, repeat the above steps 2-6; (7) After step 6 is satisfied, loosen the front and rear bolts of the motor slightly, and keep the dial indicator at 3 o’clock Tap the front and rear feet of the movable end, and the middle of the movable end with a copper rod, and perform horizontal alignment until it is within the allowable error range; (8) After step 7 is satisfied, tighten the front and rear foot bolts of the movable end , The alignment is over.
 

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