Your calibration measurements will ensure that the dial indicator does read measurements starting at zero. Cardan offset shaft alignment shaft alignment training. Shaft laser alignment 3 benefits over dial indicators. Shaft alignment industrial wiki odesie by tech transfer. Mar 29, 2019 turn the outer dial face until the hand points to 0. The following safety and common symbols may be used in this manual and on the equipment. The mathematical formula for calculating adjustments to properly align a shaft using the reverse double dial indicator alignment method follows a basic rise over run geometric principle. Shaft alignment methods explained bright hub engineering. The simplest method is using a straight edge to bring the machines into rough alignment. Spin the outer face until the hand hovers over zero. 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. The dial indicator is great for checking alignment and runout. For those currently using dial indicators without the budget to throw down on a laser alignment system, the free lovejoy dials app will help provide some of the automated calculation benefits of using laser tool. The plunger is a spring loaded part that can be depressed into the case causing the dials needle to move clockwise.
There are several steps which need to be taken for a successful alignment job. The procedure for doing reverse dial indicator alignment is not a difficult one. Put feeler gauges, vernier callipers and straight edges to good use to achieve initial roughedin shimming and horizontal alignment. Shaft alignment and couplings, model 46100 labvolt. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Dial indicator methods are made more accurate by measuring from a shaft. This paper covers fourdial gage method, which overcome all typical reasons of unsuccessful and difficult alignments, which are observed in thermal power stations coal handling plants. All measurements are taken on the rim of the coupling hubs. Based on the research and actual industrial machine evaluations, shaft alignment tolerances are now more commonly based on shaft rpm rather than shaft diameter or coupling. It is used as a reference for the setting of measuring equipment used in machine shops, such as micrometers, sine bars.
After the feeler gauge is put, both couplings are rotated half way simultaneously. It uses two dial indicators, one on each shaft, to measure the parallel and angular misalignment as shown in figure 21. Probe indicators typically consist of a graduated dial and needle driven by a clockwork thus the clock terminology to record the minor increments, with a smaller embedded clock face and needle to record the number of needle rotations on the main dial. Dial indicator alignment procedure the procedure for doing reverse dial indicator alignment is not a difficult one. How to properly use the dial gauge to determine zposition. Many commercially available reverse dial indicator alignment kits. Dial indicators are an essential tool for maintenance pros. Use it to measure the difference in distance to two or more locations. Quick guide to precision measuring instruments 22 quick guide to precision measuring instruments dial indicatorsdial test indicators dial indicator b75031997 extract from jisjapanese industrial standards no. Displace the contact point so as to move the pointer.
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. The results have led to a much different method of evaluating the quality of a shaft alignment and to increasingly accurate methods of correcting misaligned conditions. The laser alignment course is ideal if want to know what shaft alignment is all about, then this onetotwoday course is ideal. It is not intended as a comprehensive guide to alignment of process machinery, nor is it a substitute for seeking professional advice or. Apr, 2014 shaft alignment training with vibralign professional trainer stan riddle. 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 use of dial indicators for the vast majority of shaft alignment tasks where a flexible. It is indicated on the face of the dial by a dial finger. Z to the current z shown in the software and type it in as the new position.
Dial gauge alignment method pdf download linkmilcho. Shaft alignment training course ppt presentation and. The fixturlaser dials app is free and available on either the apple app. The tksa 51 shaft alignment tool provides high measurement flexibility. An aspect of troublefree operation is the align ment of. Insert the feeler gauge between the coupling faces of the shafts. For those not doing shaft alignment at all, for the longevity and reliability of your equipment, we highly recommend that you start now. Dial indicator the dial indicator is a precision measuring tool that measures relative distances. Stan shows you how to perform an alignment in just one or two moves using dial indicators and the vertizontal compound. Read more dial gauge alignment method pdf download. Both the offset and angularity are combined in the alignment calculation. Pdf dial indicator alignment procedure hussain vasadwala. Those who purchase new alignment instruments and hand them out to field technicians who lack the knowledge of alignment fundamentals are often.
Pdf basic shaft alignment workbook for industrial rotatin. Indicator distance amplifying instrument wikipedia. With a loadonpad design, figure 1 the shaft is free to laterally within bearing clearance, and alignment data is difficult to obtain without temporary bearing shims to stabilize the sham with a loadbetweenpad design, figure 1 b, the shaft remains stable during the alignment procedure. Reverse indicator method alignment and couplings 3 the reverse indicator method is another shaft alignment method. The skf tksa 11 is the first instrument on the market that uses inductive proximity sensors, enabling accurate and reliable shaft alignment to. Item calibration method diagram of calibration setup tools for calibration 1 widerange accuracy 1 for an indicator of 0. Performs pivoting calculations for reverse indicator method. Turn the outer dial face until the hand points to 0. Ol2r measurement of thermal growth shaft alignment with the vertizontal process. With a walk through alignment benefits and methods, combined with handson exercises, your understanding and appreciation of shaft alignment will skyrocket. Item calibration method diagram of calibration setup tools for calibration. Care has been taken by the authors, pruftechnik ltd, in the preparation of this publication. The shaft alignment training course provides a highly practical knowledge of the use of dial gauge in coupling alignment. The alignment training is suitable for technicians undertaking machine alignment, coupling alignment, motor alignmnet, pump alignment, etc.
Its flexible components are intended to cater for different shaft dimensions and coupling configurations. Yellow dial face for easy reading metric largepitch crown gear dovetail, 3 positions onepiece structure glare free flat crystal face with hard coating onepiece bezel with oring seal dovetail specialalloy sector gear rubber. Clean the dial indicators measuring surfaces and stand, the granite plate, an d the gauge blocks to be used. Comparison and selection table for skf shaft alignment tools tksa series. The outer dial face can be moved by twisting the rim of the dial. Jan 26, 2017 dial indicators are an essential tool for maintenance pros. Fixture mounting procedures are obviously dependent on the specific type of hardware being used. Dial indicator principle, diagram, working, application. Ritec alignment kit is a powerful tool to adjust shafts alignment using dial indicators accurately and easily.
Shaft alignment training with vibralign professional trainer stan riddle. It is used as a reference for the setting of measuring equipment used in machine shops, such as micrometers, sine bars, calipers, and dial indicators when used in an inspection role. Dial test indicators comparison measuring instruments which ensure high quality, high accuracy and reliability. Basic shaft alignment workbook preface w elcome to the introductory book on. Try to put the stem of dial gauge perpendicular to the surface of coupling. This method can be used by inserting a feeler gauge and here are the steps listed below. For this training, you will perform the alignment with the shafts uncoupled and the indicators mounted in direct contact with the rim and face of the movable shafts coupling. Reverse dial indicator method often requires the machines to be uncoupled to perform alignment. Step in english 1 testy pdf download, cursive writing book pdf free download 3d39b66ab9 use of english 1 hr 30 mins.
Unlike bearings, there are no published standards for alignment tolerances. Shaft aligning procedure preliminary checks visually check coupling, pipe hangers, base bolts, coupling spacing etc. Skf has developed a range of easytouse shaft alignment tools that are suitable for a majority of alignment tasks. The skf tksa 11 is the first instrument on the market that uses inductive proximity sensors, enabling accurate and reliable shaft alignment to be affordable for every budget. A test indicator measures the deflection of the arm, the probe does not retract but swings in an arc around its hinge point.
Dial indicators consists of a body with a round graduated dial and a contact point connected with a spiral or gear train so that hand on the dial face indicates the amount of movement. Improper alignment leads to increase of stresses in the shafts and thus on the equipment, which might result in break down of the machine. 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. Dial indicator is a very important comparator used in mechanical industrial measurement applications. Several equipment alignment methods, especially the reverse dial indicator method, which is the principle used in laser alignment is covered in explicit detail. Jul 26, 2014 alignment procedure taking alignment readings step no. 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. Dec 22, 2014 for those currently using dial indicators without the budget to throw down on a laser alignment system, the free lovejoy dials app will help provide some of the automated calculation benefits of using laser tool. Resolution half a thousandth, 1 travel, accuracy 0. Dial indicator series 2 standard one revolution type for error free reading unlike many other dial indicators, the onerevolution dial indicator literally shows the entire spindle travel or range as one sweep of the hand, eliminating the possibility of reading errors due to miscounting multiple revolutions. Dial indicator calibration procedure memorial university. 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. Reverse dial alignment sti vibration monitoring inc. The goal of this method is to provide the technician with the recommended approach for the quickest way with quality alignment.
By following this principle, the alignment of machinery can be easily accomplished using the formulas. The reverse indicator method is another shaft alignment method. Shaft alignment by dial test indicator dti horizontal alignment parallel shaft alignment by dial test indicator dti vertical alignment angular pump motor the indicators are zeroed on the top and read at the bottom record the indicator reading and consider the sag compensation by subtracting it from the recorded reading move the motor to. If you discover errors, you will be able to correct for them by. Skf data sheets pdf, newsletter archive, certificationsdocuments. The dial has fine gradations for precise measurement. A practical guide to shaft alignment plant services. The springloaded probe or plunger moves perpendicularly to the object being tested by. The plunger is a spring loaded part that can be depressed into. The readings on the feeler gauge are checked at four points on the shaft coupling. It is not intended as a comprehensive guide to alignment of process machinery, nor is it a substitute for seeking professional advice or reference to the manufacturers of the machinery. The vblock mounting clamps are 78 wide and supplied with chain to accommodate shafts from. A dial test indicator, also known as a lever arm test indicator or finger indicator, has a smaller measuring range than a standard dial indicator.
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