The correct method should take the shaft at one end as the base point. If conditions permit, you can install 2 dial indicators, divided into 4 points, that is, use the dial indicator several times every 90, so that the readings of each angle are consistent, that should be * Excellent alignment method, high precision and controllable
Install to find
The correct way is to do it with a shaft at one end
As the base point, 2 percent can be installed if conditions permit
Table, divided into 4 points, that is, every 90 points with a dial indicator
Time, make the readings of each angle consistent, then it should be
It is the best centering method, and the accuracy is high, which can be
Control within 0.02-0.10mm.
1 Coupling finding is the analysis of the offset situation. When installing a new water pump, for the coupling end face and
The verticality between the axes can be left unchecked, but
When installing the water pump, be sure to check carefully and send
When it is not vertical, adjust the vertical before correcting
.Under normal circumstances, you may encounter the following four
种情形。 1）S1=S2，a1=a2 两半靠背轮端面
Is in the correct position that is both parallel and concentric, this
The two axes must lie on a straight line. 2) S1=S2, a1 a2 The two halves of the backrest wheel are flat
Line but the axis is not concentric, then there is between the two axis
平行的径向位移e=(a2-a1)/2。 3）S1 S2，a1=a2 两半靠背轮端面虽
Although concentric but not parallel, there is an angular direction between the two axes
Displacement. 4) S1 S2, a1 a2 The end faces of the two halves of the backrest wheel are both
Not concentric and not parallel, there is a diameter between the two axes
The displacement e has an angular displacement.The coupling is in the first situation because we are aligning
In the state of striving to achieve, and the second, third, fourth
These states are not correct, we need to adjust
, Make it reach * kind of situation.When installing the equipment, first put the driven motor (pump)
Install it so that its axis is in a horizontal position, and then
Then install the active machine (micromotor), so
When aligning, you only need to adjust the active machine, that is, in the active
Add adjustment pads under the feet of the machine (micro motor)
Face method to adjust. 2. The measurement and adjustment method of the aligning time. The following mainly introduces the two commonly used methods in the maintenance process.
A kind of measurement adjustment method, according to different measurement tools
It can be divided into: 1) The use of knife-shaped ruler and feeler gauge to measure the coupling
Non-concentric and using wedge-shaped gap rail or feeler gauge to measure
The non-parallelism of the end face of the coupling, this method is suitable
Low speed and accuracy requirements for elastic connection are not
High equipment. 2) Use dial indicator and meter frame or special aligner
Capable of measuring the non-concentricity and non-parallelism of the two couplings
However, this method is suitable for higher speed and rigidity
Rotating equipment requiring high connection and precision.Note: 1) When aligning with feeler gauge and knife-shaped gauge, the coupling
The surface of the radial end face of the device should be flat and smooth.
Slippery, rust-free, and burr-free. 2) In order to see the light of the knife-shaped ruler, it is best to use
Use a flashlight. 3) For the final measured value, the ground of the micro motor
The anchor bolts should be completely tightened without any looseness. 4) When aligning with a special tool, make the same note
Number, in order to avoid the increase of measurement data error, and should
Divide the backrest wheel into 4-8 points in order to get
Accurate data. 5) Make a good record to make an important part of aligning.There are the following methods when adding and adjusting the cushion surface: 1) Direct (sensory) view (experience plus or minus cushion) due to
In the overhaul, the alignment of some pumps has not been completed.
All have good conditions and tools, when adjusting
, The master’s experience will play a big role (
Every time you add or subtract pads, you should consider the micro-motor bolts
The tightness and the remaining amount). 2) Calculation method (1) Eliminate the height difference of the coupling first. The motor shaft should be lifted up with a gasket by h. This is the front
Support A and rear support B should be padded under the seat at the same time h
. (2) Eliminate the opening of the coupling, add pads of different thicknesses under the A and B bearings respectively
The pads on the B support should be more than the back of the A support
.The thickness of the total adjusting shim is: Front support A:
h+AC; rear support B: h+BD.Center deviation standard of water pump coupling (unit:
mm) Rigid and elastic speed 3000 0.02 0.04＜3000 0.04 0.06 ＜1500 0.06 0.08 ＜750 0.08 0.10 ＜500 0.10 0.15 End face distance of centrifugal pump coupling Large 8-12mm Medium 6-8mm
Small 3-6mm
