The alignment method or sometimes called shaft alignment is one method that is often used to maintain machine reliability. With this method, the risk of a short-lived machine can be avoided. However, what is the real definition of this alignment method? What equipment is used? Here's the explanation.
Definition of the Alignment Method
The real definition of an alignment method is a method or way to align a moving object and an object that is moved. Even though it is said to be parallel, in fact in this method there is also a known tolerance, which is up to 0.05 mm. This is because getting a straight line is not always 100% possible.
Why do you have to do this alignment method? When the machine works, the components in it will move too. The motion is in accordance with a certain path and timing. Now, without alignment, the motion of these components will go off track and not match the timing. As a result, the components rub against each other. Over time, this friction will cause wear on the engine. The engine breaks down faster.
Equipment Used in the Alignment Method
Doing the alignment method can use several tools. There are four types of equipment that are often used, namely a ruler, dial indicator, level precision, and laser. The explanation of each tool will be explained in the points below.
1. Ruler
The alignment method using a ruler is the most traditional. This method relies on the accuracy of the user's eye in seeing the presence or absence of deviations. Apart from metal rulers, other commonly used tools are the taper gage and the feeler gauge (inside micrometer).
For small machines, alignment with a ruler is still possible. However, it should not be applied to machines with large capacity or high rotation. Why? This method has a very low level of precision. The results given are often inaccurate, which can lead to asymmetry of machine components.
2. Dial Indicator
Next, there is a dial indicator. The alignment method with the dial indicator can be done in two ways, namely reverse and rim and face. The reverse method is commonly used when one of the engine shafts is difficult to move (there is no room for the dial). The reverse is quite efficient because only by turning one axle, the engine pair are symmetrical. Suitable for engines without thrust bearings.
Meanwhile, the rim and face are alignments by rotating two axles at the same time. This method is quite accurate and can be used on shafts with small or large diameters. In addition, rim and face also simplify calculations, thereby shortening work time.
3. Level of Precision
The next equipment used in the alignment method is level precision. The real function of level precision is to adjust the level of the machine. Usually used on machines that cannot be measured with a dial indicator, for example, alignment for APH bearing support, APH post rotor, to impeller force draft fan. The way it works is similar to a water pass device. Even so, the level of precision has higher accuracy.
4. Laser
Finally, the alignment method can be done using a laser. As the name suggests, this method makes use of a laser beam emanating from an infrared sensor to align the shaft. The symmetry of the shaft is measured by a laser beam that is fired by an infrared sensor. This method is considered efficient because it provides fast and accurate results. The entire calculation process is carried out automatically.
In order to maintain the reliability of machine performance, the alignment method is mandatory. For the most appropriate tool, you can determine it yourself according to machine conditions. However, if you want accurate results and fast processing, it's best to use a laser. You can get lasers from VIBRO-LASER, a shaft alignment laser with the best machine alignment systems through Hyprowira.
