Us20030017878 curvic coupling patent sandeep muju slideshare. We will lead this market at the head of this field. The coupler consists of a series of radial, gearlike teeth on the faces of two mating flanges. Delbert tesar modularity in robot structures allows for achieving various system configurations using a limited number of interconnecting modules. March 2000 machine was sent to gleason for full mechanical and electrical overhaulupgrade. However, the requirement for system calibrations following. How to merge pdfs and combine pdf files adobe acrobat dc. To employ the coupling disc 5 at front of main body and connecfng the coupling disc with main body. An anti backlash twopart shaft coupling with interlocking elastically averaged teeth mahadevan balasubramaniam 1, edmund golaski1, seungkil son1, krishnan sriram 1, alexander slocum1 1department of mechanical engineering massachusetts institute of technology cambridge, ma 029 abstract. Gleason type curvic coupling, dog clutch, allwheeldrive, multibody dynamics. Previous bodies of research have utilized coordinate measuring machines cmms to.
The coupling shown in the diagram on the right above is suitable for use in cases subject to great radial loads. Electronics the act or process of linking two or more circuits so that power can be transferred between them usually by. However the allowable load differs to the size of the curvic coupling in use. A distinct difference of the involute spiral face coupling figure 6 is that the. Our pdf merger allows you to quickly combine multiple pdf files into one single pdf document, in just a few clicks. The fixed curvic coupling is used extensively in the construction of builtup turbine and compressor rotors for airfig. The dimension and location of the projections allows for.
Curvic coupling, as well as a variety of related products and services. The university of texas at austin, 2004 supervisor. Curvic couplings provide a positive engagement with. Pdf rings with hirth couplings are primarily used for the accurate. The fixed curvic coupling is a precision face spline for joining two members, such as two sections of a shaft, to form.
Buy best curvic coupling, hirth coupling with escrow buyer protection. Curvic coupling, curvic coupling manufacturer in india. Gear coupling selection procedure table 1 torque and horsepower ratings. Curvic couplingcurvic coupling is product description curvic coupling use for turret of cnc lathemachining center, robot, gas turbine, airplane, etc feature accurate and precise centering the curvature of the teeth give these couplings their very own and unique selfcentering feature.
The textronlycoming company subsequently merged with the. Coupling is desirable, because if you ban coupling between modules, you have to put everything in one big module. Find gleason, marposs, and toyoda for sale on machinio. Works 4, a curvic is a precision ground face spline. The inspection of curvic coupling geometry is usually done by using a mating master curvic to check the transfer of a very thm coating of engineering blue from the master to the curvic being inspected. As the coupling obtains a significant level of clamp force and hardness, it is optimally used for index tables at machining centers for heavy cuttings and in torque transfers. Curvic coupling, hirth coupling manufacturers,curvic coupling. Gear coupling selection procedure table 1 torque and horsepower ratings standard selection method the standard selection method can be used for most motor, turbine, or engine driven applications.
Our engineering staff can help with analysis of new designs as well as improvements on existing designs. I would like to suggest adding hirth and curvic couplings to gearotic. Rencis general electric company, western avenue, lynn ma 01910, usa mechanical engineering department, worcester polytechnic insitute, 100 institute road. Digital inspection of fixed curvic coupling contact pattern. Coupling article about coupling by the free dictionary. Bored to size couplings with finished bore, keyway, and set screw. Find couplings fittings cad catalogs in mechanical components and assemblies. Stress analyses of curvics at ge have incorporated both simple twodimensional and more complex threedimensional finite element analyses. One flange of a coupling has concave tooth lines and the mating one has convex tooth lines. The curvic coupling will be lubricated by lubricant. Korea supplier of power chuck, gear, helical, spur, reducer, curvic coupling, chuck, lathe chuck. To ensure stability in a threegroove kinematic coupling, the grooves must be arranged in a triangular fashion, such that the normals to the planes created by the two contact points of each coupling, intersect within the coupling triangle 9 as shown in figure 3. Mutual coupling reduction in patch antenna arrays using ebg structure f. Industrial grinding services machine centers by repairing or rebuilding mating areas and worn diameters.
In order to manufacture the curvic coupling on a homemade cnc spiral bevel gear cutting or grinding machine, the manufacturing method for fixed curvic coupling was investigated. Pdf digital inspection of fixed curvic coupling contact pattern. Moore, foundations of mechanical accuracy12 elastic averaging bench level experiment 27 lines with its mating geometry 14, as shown in figure 3. Mutual coupling reduction in patch antenna arrays using. Digital inspection of fixed curvic coupling contact pattern bradley james nielson this report focuses on providing a foundation for further investigation into the inspection of fixed curvic coupling contact pattern by way of modern metrology techniques. The single flexing coupling is for use in the case where shafts are supported by three bearings. Hirth couplings, also regarded as curvic couplin gs, are widely used for torque transmission between mating discs in turbine machinery and ar e not covered by international standards for instance. Curvic couplings were first introduced in 1942 to meet the need for permanent couplings and releasing couplings clutches, requiring extreme accuracy and maximum load carrying capacity, together with a fast rate of production. Fixed curvic couplings the fixed curvic coupling is a precision face spline for joining two members, such as two sections of a shaft, to form. The curvic allows torque transmission between individual rotors, and the self centering feature of the curvic face centralizes each rotor in the stack. Mutual inductance of two coils ceis caribbean energy. Spicer is the only gearbox manufacturer to employ curvic coupling, which locks with the taper under load.
Download the novemberdecember 1986 issue in pdf format. Roller chain coupling roller chain coupling consists of two simplex sprockets, one length of twostrand roller chain and a pair of housing,it is very simple and flexible with the features of easy installation and safety. The mating master curvic is also used to measure dimensions such. Maakt het mogelijk om pdfbestanden samen te voegen met een simpele drag anddrop interface. I imagine these would be milled flat or on a horizonta l rt. The degree to which components depend on one another. A type of coupling used to join a series of axialflow compressor disks or axial turbine wheels to each other.
Curvic coupling fatigue life enhancement through unique compound. Coupling is increased when the data exchanged between components becomes larger or more complex. Manufacturing method for fixed curvic coupling request pdf. Strength formula for curvic coupling division accuracy. The companies featured in the following listing offer a comprehensive range of grinding. Investigating curvic coupling behavior by utilizing the. Mutual inductance of two coils in the previous tutorial we saw that an inductor generates an induced emf within itself as a result of the changing magnetic field around its own turns, and when this emf is induced in the same circuit in which the current is changing this effect is called selfinduction. Curvic coupling turbine engine component a type of coupling used to join a series of axialflow compressor disks or axial turbine wheels to each other.
Gleason model 887 cnc curvic coupling grinder with fanuc 18mb control. Curvic coupling, 2 the semiuniversal coupling, and 3 the releasing coupling or dutch, the coupling provides a positive drive along with precision centering and high load carrying capacity. Curvic coupling curvic coupling is product description. I figure the rust must of acted as a lapping compound and wore the angles on the teeth to the point where coupling will bottom out and still leave slop radially. Suraram, quthbullapur mandal, hyderabad, 2 associate professor, department of mech, mallareddy engineering college autonomous.
Curvic coupling design novdec 1986 gear technology. Pdf the joint use of gravity data and gpslevelling. Panjiva uses over 30 international data sources to help you find qualified vendors of curvic. Spicers sst 10 is positively convenient first printed in the 12th september 1981 issue of commercial motor. You can break a program into modules, but these modules will need to communicate in some wayotherwise, youd just have multiple programs. Please, select more pdf files by clicking again on select pdf files. Welcome to the premier industrial source for grinding. Manufacturers of curvic and suppliers of curvic panjiva. The coupling provides a positive drive along with precision centering and high load carrying capacity. Request pdf manufacturing method for fixed curvic coupling in order to manufacture the curvic coupling on a homemade cnc spiral bevel gear cutting or. Us20030017878a1 curvic coupling fatigue life enhancement.
Combining equations 9 and 10, it is possible to work out the upper threshold c. Dec 16, 2016 frost angle setting technology fast in use on a curvic coupling. Our mindset will be concentrated on satisfying the needs of our customers and working hard to become a futureoriented company armed with a spirit that. The curvic coupling design includes a compound fillet radius, comprised of a large and a small radius, located between the root and the pressure surface of all splined teeth on the torque transmitting coupling halves. Curvic coupling use for turret of cnc lathe machining center, robot, gas turbine, airplane, etc feature. Fixed curvic couplings the fixed curvic coupling is a precision face spline for joining two members, such as two sections of a shaft, to form a single operating unit.
Researcharticle selfloosening failure analysis of bolt joints under vibration considering the tightening process yanchen,qianggao,andzhenqunguan. Curvic couplings are produced by plunging a cup shaped grinding wheel towards the blank material, i. To connect the servomotor used in nc machine tools with the ball screw, an exceptional usage of the coupling as shown in the. Mutual inductance of two coils in the previous tutorial we saw that an inductor generates an induced emf within itself as a result of the changing magnetic field around its own turns, and when this emf is induced in the same circuit in which the current is changing this effect is called selfinduction, l.
Loose coupling is desirable for good software engineering but tight coupling may be necessary for maximum performance. It is, however, built to withstand this type of treatment. We repair and rebuild machine components such as shafts, curvic coupling rings, spindle heads, and sleeves. The mating master curvic is also used to measure dimensions such as swash, radial runout and overall stacking height. Inevitably ratchetting results on occasions as the four dogs of the curvic coupling take up the load. Curvic couplings provide a positive engagement with no slippage. Deze gratis online tool maakt het mogelijk om meerdere pdf bestanden of afbeeldingen te combineren in een pdf document. Frost angle setting technology fast in use on a curvic coupling. Dlc is a specialized manufacturer of curvic coupling such as curvic, index curvic coupling, turret curvic coupling, airplane curvic coupling, 2pieces curvic coupling, 3pieces curvic coupling. It is used to connect two pieces of a shaft together and is. Couplings fittings cad catalogs in mechanical components. We provide prompt quotations, competitive pricing, and top quality gears.
There was a ton of rust in there and they did alot of indexing. A wide variety of curvic coupling options are available to you, such as gear, disc, and universal. Investigating curvic coupling behavior by utilizing the two and threedimensional boundary and finite element methods s. Provided coupling is known for its accurate alignment and precision centering capability whenever it is in mesh. Curvic coupling, hirth coupling manufacturers,curvic. Keywords bolt loosening, curvic coupling, finite element analysis, nut rotation, nylock nut. The fixed curvic coupling is also used today by many. Buy best curvic coupling with escrow buyer protection. Digital inspection of fixed curvic coupling contact pattern bradley james nielson this report focuses on providing a foundation for further.
H 1 roller chain coupling roller chain coupling consists of two simplex sprockets, one length of twostrand roller chain and a pair of housing,it is very simple and flexible with the. Gears, splines, curvic couplings equitable engineering. The fixed curvic coupling is used extensively in the construction of builtup turbine and compressor rotors for aircraft and industrial gas or steam turbine engines. The joint use of gravity data and gpslevelling undulations in geoid estimation procedures. Selfloosening failure analysis of bolt joints under. To change the order of your pdfs, drag and drop the files as you want. The curvic coupling flanges figure 6 have teeth with a circular tooth line, though the tooth flank profiles are straight. It is used to connect two pieces of a shaft together and is characterized by tapered teeth that mesh together on the end faces of each half shaft. Relying on our stateoftheart manufacturing set up, we are offering premium quality range of curvic coupling. Design and analysis of flange coupling 1chandra sekhar katta 2kamana srinivasa rao 1 pg scholar, department of mech, mallareddy engineering college autonomous. Find prior art discuss this application view pdf download pdf images 5. The coolant inlet 9 will guided the coolant pass through the main body and drained on the coupling disc 5 into the coupling disc. Mutual coupling reduction between closely placed microstrip patch antenna using meander line resonator jeet ghosh1, sandip ghosal2, debasis mitra1, and sekhar ranjan bhadra chaudhuri1 abstractan approach of reducing mutual coupling between two patch antennas is proposed in.
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