Dial gauge alignment method pdf

Reverse dial indicator alignment procedure free download as pdf file. Life before was the use of straight edges, feeler gauges, comparators and dial indicators. This measurement will be made by using dial indicators that measure in 0. The rim and face method can be used with the simplest of installations. Dial indicator principle, diagram, working, application. Figure 44 shows a typical dial indicator setup for the cross dial alignment method. Working of dial indicator it operates on the principle, that a very slight upward pressure on the. A practical guide to shaft alignment plant services. The graphical illustration of a single dial indicator sweep is. Press alignmentpress alignment this chapter is available for sponsorship. This required a high skill level to obtain a precision alignment.

What does take to do each step in the alignment procedure. Dial indicators can be used to check round parts like wheels for straightness and are commonly used in machine shops. All measurements are taken on the rim of the coupling hubs. This course begins with the fundamental principles behind shaft to shaft alignment and concludes with students conducting a series of alignment exercises using conventional alignment tools. Again, reverse alignment is the measurement of one axis to the relative position of an opposing axis. How accurate are dial indicators for shaft alignment. This 2day course begins with the fundamental principles behind shaft to shaft alignment and concludes with students conducting a series of alignment exercises using conventional alignment tools. A dial indicator, sometimes know as test indicator, helps test equipment integrity in a variety of workshop environments. The rotating equipment machine shaft coupling alignment training course covers several alignment methods like straight edge alignment, rim face alignment, reverse dial indicator alignment procedure and the basic principle applied to laser alignment technique. Prior to the actual alignment procedure, it is essential that. Reverse dial alignment sti vibration monitoring inc. For ease of use, this formula is incorporated into a shaft alignment data form, shown in figure 45. Dial indicators the skf dial indicators are used to measure the axial travel of the piston in an skf hydraulic nut edesign. Dial indicators have a smaller increments for a precision measuring range that arcs around a point.

Shaft aligning procedure preliminary checks visually check coupling, pipe hangers, base bolts, coupling spacing etc. With a focus on the core alignment tasks, the tksa 11 is designed to be a very easytouse instrument that is especially suitable for alignment learners and compact applications. What is the formula of rim and face coupling alignment. The shafts alignment is one of the main stages during the. Reverse dial indicator alignment formula pdf if you are looking for a quick way to see who keeps calling you late at night from an unrecognizable number, then our reverse phone lookup services can help. With the coupling broken, mount the fixture to the stationary shaft or coupling hub. The plunger is fully extended out of the case if no pressure is applied to it. For maintenance personnel in drinking water and wastewater. Electronic and electrooptical shaft alignment systems. Typical dial indicator setup for cross dial alignment. Let us show you the theory behind the magic, or how the app is doing the math for you read more fixturlaser laser kit simplified laser shaft alignment making precision shaft alignment. This method produces acceptable results, but is less accurate than the reverse dial indicator method covered in this application note. When taking readings, the dial indicator should be returned to location a to be sure the indicator. Many different variations of the rimface method are used, including straight edge and feeler gauge methods, single dial rimface, two dial rimface, trial and error.

This video gives a brief overview of how dials can be used to measure shaft alignment, and can even be adjusted to show the true. The rim dial indicator is used to measure offset in one plane along the shaft length and face dial indicator is used to measure angularity or slope between the shaft. Reverse rim dial vs rim face universal technologies intrctv. These procedures must also be followed when carrying levelling and alignment tasks. For example, a machine running at 1800 rpm with 12 inch of spacer shaft length would allow a maximum offset of. Shaft aligning techniques shaft alignment by conventional method shaft alignment by dial test indicator dti shaft alignment by using laser equipment shaft alignment by using computer. In this method two dial indicator rim and face dial are used to determine the relative position of movable shaft with respect to stationary shaft. Reverse dial indicator alignment procedure machines. The total travel all the way out to all the way in varies depending on the particular indicator model.

Achieving proper alignment, however, involves much more than merely adjustment the machines so that the shafts are coaxial. As mentioned earlier, the reverse dial indicator method of alignment is probably the most popular method of measurement, because the dial indicators are installed to measure the relative position of two shaft centerlines. For shaft alignment, we typically use dial indicators with 0. The procedure for doing reverse dial indicator alignment is not a difficult one. Proper alignment of rotating equipment has a long been recognized as a prerequisite to safe, reliable operation. The method was first used with dial indicators, but now the term reverse indicator is descriptive of the method of obtaining the numbers x and y, rather than the measuring devices themselves. Accuracy of dial indicator readings there is a quick way to check the validity of dial indicator face align ment readings. Pdf basic shaft alignment workbook for industrial rotatin. A popular method used for years and is still in use today is the rim and face method. Stan shows you how to perform an alignment in just one or two moves using dial indicators and the vertizontal compound move method. Shaft alignment is a procedure of determining and adjusting the relative position of two connected machines so that the rotational centres of the shafts are collinear. The bending action occurs as a result of gravity and cannot be totally eliminated in almost all cases of alignment. This paper covers four dial gage method, which overcome all typical reasons of unsuccessful and difficult alignments, which are observed in thermal power stations. It uses two dial indicators, one on each shaft, to measure the parallel and angular misalignment as shown in figure 21.

Shaft alignment is a method or procedure by which shafts of machines such as motors and turbines are connected to a generator or pump in proper alignment. Reverse indicator method alignment and couplings 3 the reverse indicator method is another shaft alignment method. Shaft alignment training course ppt presentation and. Dial indicator alignment basics alignment knowledge.

Dial indicator is a very important comparator used in mechanical industrial measurement applications. One of the primary challenges of all methods used for shaft alignment on rotating machinery is obtaining valid measurement data. Improper alignment leads to increase of stresses in the shafts and thus on the equipment, which might result in break down of the machine. Dial indicator bar sag describes a bending of the hardware used to support a dial indicator or other part which spans the coupling. Dial gauge alignment method pdf download linkmilcho. Precision shaft alignment using dial indicators abstract even with the advent of new computerized dial indicator and laser alignment systems, knowledge of the basics of shaft alignment is a must. Each precision alignment method has its own unique problems and there are also problems which are unique to all methods. Today, all laser alignment systems use the reverse indicator method or one of its variations.

Find out more about what makes your world spin more troublefree read more math giving you headache. If the shaft laser is damaged which is possible and do not have a spare laser, you should be prepared to carry out a coupling alignment with an alternative method. A set of procedures for using the reverse dial indicator method for levelling and alignment of machines and engineering components. As figure 6 shows, readings are taken at four locations designated as a, b, c and d. Those who purchase new alignment instruments and hand them out to field technicians who lack the knowledge of alignment fundamentals are. Dial indicators are an essential tool for maintenance pros. All our alignment systems allow to perform the alignment with two methods. They are used in conjunction with the skf driveup method.

A rough alignment is necessary due to the range limitations of the dial indicators. Dial indicators precision measuring tools grainger. Shaft alignment industrial wiki odesie by tech transfer. Try to put the stem of dial gauge perpendicular to the surface of coupling. With proper extensive training and practice, and the correct tools for the job, equipment align ment can take less than 60 minutes. Tir total indicator runout the reading on the dial. B distance between the coupling being measured and the. The skf tksa 11 is an innovative shaft alignment tool that uses smartphones and tablets and intuitively guides the user through the shaft alignment process. There are several steps which need to be taken for a successful alignment job. The alignment training is suitable for technicians undertaking machine alignment, coupling alignment, motor alignmnet, pump alignment, etc. This video gives a brief overview of how dials can be used to measure shaft alignment.