INSTALLATION AND OPERATING INSTRUCTIONS FOR R+W
Contents
1. RW COUPLINGS COM 11 20142. 0 01 and 0 05 mm A light coating of oil is recommended to ease the mounting pro A cess and will not affect the clamping force of the hub CAUTION f J Do not use sliding grease or oils or grease with mo l g lybdenum disulfide or other high pressure additives J To achieve zero backlash the coupling hubs must be ha pressed together with an axial force F compressing the elas tomer ring Cleaning the elastomer ring and hubs and applying a light film of oil will aid in the assembly process Picture 3 Contact surfaces 2 RW COUPLINGS COM MACHINING THE PRE BORED HUBS CAUTION J The maximum permissible bore diameters D1 and D2 see catalog must not be exceeded The coupling may burst if Picture 4 Picture 5 these values are exceeded Serious injury or death may re sult from flying debris During manufacturing the concentricity and run out of the coupling hub are precisely controlled Applying excess forces on the jaw end of the hub will deform the coupling negatively affecting its perfor mance D H7 Custom modification of the coupling hub is possible by the customer The hub may be custom machined to a maximum dimension H see catalog for specific values The customer assumes all responsibility for the performance of the coupling anytime a modification is made R W cannot guarantee the performance of the coupling once the customer performs any modification to the original design
3. in the max min range of the coupling Diagramm 1 CAUTION R W torque limiters incorporate disc springs i MOUNTING INSTRUCTIONS ESL Picture 22 0 Distance table 3 Access hole Screws DIN 916 actuation path LATCHING FUNCTION Picture 23 Engaged Disengaged Engaged actuation path Latching balls in base element Latching balls in hub This safety coupling works at a ball latching system High durable hardened steel balls are latching into each other A latch is followed by another Multi position RW COUPLINGS COM Diagramm 1 Mounting Slide hub on to shaft and tighten at specific position with fas tening screws DIN 916 The screws are for the axial fixation of the hub The distance O regarding table 3 page 3 must be met at any time bacause the safety part is moving after disengagement along the actuation path Dismounting Loosen the screws And pull of the hubs while using an ap propriate tool 4 CAUTION The point of disengagement must be ye tested before shipping the machine DISENGAGEMENT TORQUE SETTING The ESL torque limiter is axactly pre adjusted by the manufac turer and is permantent secured against readjusting The steel adjustment nut will be solid connected to the base element A re adjusting of the desengagement A torque is not possible J 4 4 The overdrive must be shut of immediately J MAXIMUM SHAFT MISALIGNMENT R
4. multi position design the spring disengages to allow the balls to come out of their detents separating the drive and driven elements Very low residual spring pressure remains so that the coupling will re engage once the torque is reduced below the overload setting J Re engagement may only be e effected at low speed Full disengagement The R W full disengage torque limiting coupling can be re engaged in six different positions or every 60 degrees with low press in force E Marks on the actuation ring and body 13 of the coupling must line up and indicate the re engagement points 17 As of size 60 and up the re engagement can be done with 2 lever which will be supported at a recess on the adjustment nut picture 18 Screwdrivers can be used as a lever CAUTION Re engagment should only be 5 performed when the coupling stands still and not rotating Mounting Slide the coupling on the shaft ends to the proper axial posi tion Using a torque wrench tighten the clamp screws E1 E4 to the correct tightening torque as indicated in the table page 3 e Dismounting Simply loosen the clamp screw E1 E4 and remove the safety coupling CAUTION Both clamping hubs have different screws and different tightening torques Emergency cut off The axial path of the actuation ring acti vates the mechanical switch or the proximity sensor e FULL DISENGAGEMENT tp f A AA N a CAUTION Upon assem
5. the length of the EZV After loosen the screws E5 the axial adjustable tube 1 can be pushed into the other intermediate tube 2 After receiving the wanted axial position the fastening screws E1 E5 can be fastened under consideration of the spe cific tightening torque see table 3 The tube of the mov ing part is exactly conducted in the fixed part of the cou pling A high concentricity is ensured Dismounting Loosen the screws E1 of the hubs and demount the shaft Series 10 20 60 150 300 450 800 2500 4500 9500 Distance O 16 6 18 6 32 37 42 52 62 67 84 105 The installation length G results out of the distance P 2x0 7 ATTENTION Do always notice the max critical speed given by the manufacturer An abrasion of the elastomer insert can decrease the max critical speed Do constantly check the elastomer inserts for abrasion A fast turning bended tube can cause a major oscillation Rework or replacement of the tube MOUNTING ES 2 Picture 14 Proximity switch Access hole OE RLARK wii a ia JE E1 Screws ISO 4762 Actuation path EA E4 Screws ISO 4762 SINGLE POSITION MULTI POSITION Picture 15 1 Adjustment nut 2 Spring 3 Actuation ring 4 Balls 5 Detents 6 Proximity switch iN m amp yes amp engaged disengaged In a torque overload with the single position design stand ard and
6. 0 1 0 25 0 15 0 12 0 3 angular BS degre M 1 08 12 1 08 12 1 08 12 1 08 12 1 os8l12 1 08 12 axial Ei mm 1 1 1 2 2 2 MODEL SERIES EK Type Elastomer insert A B C A B C A B C A B A B A B Nominal torque Nm Txy 325 405 84 530 660 95 950 1100 240 1950 2450 5000 6200 10000 12500 Max torque e 650 810 170 1060 1350 190 1900 2150 400 3900 4900 10000 12400 20000 25000 Distance mm A 24 26 31 37 46 57 lateral HEH mm 0 18 0 14 0 35 0 2 0 18 0 35 0 25 0 2 0 4 0 5 0 3 0 5 0 3 0 6 0 4 angular Bay degree ee 1 0 8 1 2 1 0 8 1 2 1 0 8 1 2 1 5 1 1 5 1 1 5 1 axial EH mm 2 2 2 3 4 5 Table 2 CAUTION The maximum permissible misalignment values in the chart are based on the following parameters Nominal torque TKN rational speed n 1500 rpm and an ambient temperatur of 10 to 30 C MOUNTING PREPARATION All mounting surfaces including shafts bores keys CAUTION and keyways must be clean and free of burrs J Use PU compatible greases such as e g vaseline nicks and dents Inspect shaft diameters cou Xe pling bore diameters key and keyway dimen sions and tolerances All R W coupling bores are machined Pierur to ISO tolerance H7 Clearances between the shaft and Distance see Tabie 2 Mounting Force hub are maintained to be within
7. Consult your R W representative for custom design technical assistance Do not clamp here SCREWS TIGTHENING TORQUE Series 1500 2500 4500 9500 Clamping models E1 M2 M3 M4 M5 M6 M8 M10 M12 M16 M16 M16 M20 M24 EKM ERI EK E227 IEZ 0 6Nm 2Nm 4Nm 8 Nm 15Nm 35Nm 70Nm 120 Nm 290 Nm 300 Nm 300 Nm 600 Nm 1100 Nm Conical clamping hubs E2 M3 M4 M5 M5 M6 M8 M10 M10 M12 M16 Model EK6 2 Nm 3 Nm 6 Nm 7 Nm 12 Nm 35Nm 55 Nm 60 Nm 100 Nm 160Nm Expanding hub shaft E3 M4 M5 M6 M8 M10 M12 M16 M16 Model EK7 4Nm 9 Nm 12 Nm 32Nm 60Nm 110 Nm 240 Nm 300 Nm Torque limiter section with E4 M4 M4 M6 M8 M10 M12 M16 M16 M20 clamping hub Model ES2 4 Nm 4 5 Nm 15Nm 40Nm 70 Nm 130 Nm 200 Nm 250 Nm 470 Nm M4 M4 M5 M6 M8 M10 Tube cl ing hub EZV E eee eae 4Nm 45Nm 8Nm 18Nm 35Nm 70Nm Press in force ES2 N 10 20 15 30 25 50 30 60 35 70 80 200 200 500 500 1000 full disengagement N N N N N N N N Distance ES2 O 0 7 1 1 0 7 1 3 1 3 Table 3 MOUNTING EK 1 Picture 6 Access hole Slide a coupling half onto the shaft to the correct axial po sition Tighten the set screw s to the appropriate torque using a torque wrench Insert the elastomer ring and press the two coupling halves together Make sure that the fit length A is maintained See table 1 Mount the assembled coupling onto the second shaft and tighten the set screw s Dismo
8. INSTALLATION AND OPERATING INSTRUCTIONS FOR R W SERVOMAX ELASTOMER COUPLINGS GENERAL FUNCTIONING Please carefully and completely read the following installa tion operation and maintenance procedures for the R W SER VOMAX elastomer couplings Failure to comply with these pro cedures may result in the failure of the coupling Installation of the couplings should be performed by a qualified technician SERVOMAX couplings may only be used in accord ance with the technical data supplied in the catalog This installation and operation instruction does not apply for ATEX Elastomer coulings See additional instruction for these couplings SAFETY WARNING Rotating couplings can be very dangerous Proper guarding should be in place at all times and is the responsibility of the MODELS MODEL EK 1 2x EK 1 Hub 1x Elastomer insert 2x Set screws DIN 916 MODEL EK 4 1x EK2 Clamping hub 1 x Elastomer insert 1 x Conical hub 1 x Screws ISO 4762 MODEL EK 7 1x EKL Clamping hub 1x Expanding hub shaft 1x Elastomer insert 2x Screws ISO 4762 MODEL EKH 2x Clamping split hubs 1x Elastomer insert 4 x 8 x Screws ISO 4762 MODEL ES 2 1x EKL Clamping hub 1x Torque limiter section with clamping hub rx Elastomer insert 2x Screws ISO 4762 RW COUPLINGS COM machine builder user or operator Do not approach or touch a coup
9. W SERVOMAX elastomer couplings compensate for lateral axial and angular shaft misalignment Ext E lateral misalignment od SS the a is important to remain within these limits to en sure long life and proper operation of the cou pling If several misalignment types occur at the same time it is necessary to reduce the maximum permissible mis alignment values The percentage of the maximum value summing up actual misalignments must not exceed 100 axial misalignment In Table 2 you will find the maximum permissi ble values for the three axis of misalignment It MOUNTING WITH INTERMEDIATE FLANGE If an RtW SERVOMAX coupling is to be installed within an intermediate flange it is important that the drive and driven Shafts align as precisely as possible The flange must be preci sion machined with centering pilots and the mounting sur faces must be parallel to each other and perpendicular to the Shaft axis OPEN INSTALLATION CAUTION Do check fit length A indicated in table 2 The elastomer insert must be axially movable If the R W SERVOMAX coupling is to be mounted between a foot mounted motor and a gearbox for example care must be taken to ensure that the gearbox and motor shafts are in align ment and the devices are permanently mounted CAUTION Do check fit length A indicated in 5 table 2 The elastomer insert must be axially movable MAINTENANCE R W SERVOMAX couplings are maintenance free as lo
10. bly it is absolutely neces sary to check the function of the switch 100 Picture 16 With this design when a torque overload Is detected the disc Spring completely flips over and places no residual spring pres sure on the actuation ring The drive and driven elements are completely separated Re engagement of the coupling is not automatic and must be performed manually Picture 17 18 Picture 17 Picture 18 Lever Screwdriver RW COUPLINGS COM DISENGAGEMENT TORQUE SETTING Picture 19 At ES 2 couplings the slot of the clamping hub serves as a marking 13 R W torque limiters are factory set to the customer specified disen gagement torque which is marked onto the coupling The adjustment range min max is also marked on the adjustment nut 1 The cus tomer can adjust the disengagement torque as long as it Is in the range Picture 20 Picture 21 ah 1 adjustment nut 1 12 adjustment range 11 locking screw 13 marking 3 steel actuation ring adjustment actuation range path 12 indicated on the adjustment nut The adjustment range may not be 3 exceeded while re adjusting To adjust the disengagement torque loosen the locking screws 11 and rotate the adjustment ring using a spanner wrench to the desired new setting Tighten the 3 locking screws 11 and test the coupling spring force that exhibit a special spring characteristic It is important spring path to stay
11. e 4 CAUTION Prior to re assembly make sure the fasten ing screws are in the proper holes to draw in the taper ring RW COUPLINGS COM MOUNTING EK7 Pictures 11 E1 Screws ISO 4762 MOUNTING EZ 2 EZV Pictures 12 Overall length G a E1 Screws ISO 4762 MaX moveable tube fixed tube Distance P min P max Pictures 13 LATERAL MISALIGNMENT A KR A Kr ca 10 mm x G m m RW COUPLINGS COM Mounting of the clamping hub Slide the coupling onto the shaft ends at the right axi al position tighten the mounting screw to the specified tightening torque Dismounting of the clamping hub For dismounting loosen the mountingscrew E3 Mounting of the expanding shaft Push the shaft hub into the bore at the right axial position thighten the mountingscrew E3 to the specified tightening torque Dismounting of the expanding shaft For dismounting loosen the screw E3 a few turns By put ting pressure on the screwhead the inner cone slides out of its sleeve The shaft is now loose Mounting The coupling needs to be pre mounted The pre mouned coupling can be set in place radial under consideration of distance P Now the two split hubs can be mounted while using the locking screws E1 applying the right tightening torque Distance A as shown on table 2 must be kept Adjusting
12. ling while it is rotating Make sure that the machine is lo cked out and cannot be accidentally started during installation or maintenance of the coupling 5 Indicates important points MANUFACTURER S DECLARATION According to EG guidelines for machinery 2006 42 EG Appendix II B In the sense of machine guidelines MR shaft couplings are no machines but components for the installation in machines Their putting into operati on is subject to the fulfillment of all requirements of ma chine guidelines by or after integration in the final product Warning against danger MODEL EK 2 2x EK 2 Clamping hub 1x Elastomer insert 2x Scews ISO 4762 MODEL EK 6 2 x Conical clamping ring 2x Conical clamping hub 1x Elastomer insert 12 20 x Screws ISO 4762 MODEL EKL 2x EKL Clamping hub 1 x Elastomer insert 2x Screws ISO 4762 oF MODEL ESL pa 1 x EK 1 Hub ala 1x Elastomer insert 3x Screws DIN 916 1x Safety part MODEL EZ 2 2x Clamping split hubs 2X Elastomer insert 1x Intermediate tube 4 x 8 x Screws ISO 4762 MODEL EZV 2x Clamping split hubs 2x Elastomer inserts 1x Intermediate tube with clamping hub 1x Expanding intermediate tube 6x Screws ISO 4762 FUNCTION The equalizing element of EK couplings is the elastomer insert The coupling is backlash free due to a pretension of the elasto It transmits torque without backlash or vibration The elasto mer insert between the two co
13. ng as they are properly mounted and the maximum misalignment values are not exceeded Extreme ambient or installed con ditions such as very high or low temperatures acidic or ba R W Antriebselemente GmbH RAW A POPPE POTTHOFF COMPANY Alexander Wiegand Str 8 63911 Klingenberg Phone 49 9372 9864 0 Fax 49 9372 9864 20 info rw kupplungen de www rw couplings com a angular misalignment CAUTION Lateral misalignment has a negative ef J e ment of the coupling considerably increases the ser vice life of the elastomer By reducing or eliminating is eliminated increasing service life and reducing heat For drives running at high speed we recommend the alignment of fect on the service life of the elastomer Exact align lateral misalignment the radial load of the adjacent bearings the R W coupling with a dial indicator Picture 23 24 Picture 24 Centering _ Dial gauge or lever cauge Magnet measuring support Picture 25 A g 90 turn is sufficient es sic solutions cutting fluids etc may cause wear and tear on the elastomer insert Regular inspection of the insert is rec ommended If replacement is required use only R W original spare parts The above mentioned information is based on our present knowledge and experiences and does not free the user of his own regular checks A legally binding guarantee is not given even in regard to protection rights of Third parties
14. ub Slide the coupling on the shaft ends at the right axial position thighten the mounting screw E1 to the speci fied tightening torque as shown in the table 3 Mounting of the conical hub After inserting the key into the keyway of the motor shaft slide the coupling hub on the shaft Check if the conical hub has a proper seat on the shaft Now the nut 3 can be tightened on the motor shaft using the exact tightening torque specified by the motor manufacturer Dismounting Loosen the screws of the clamping hub and demount the coupling with the proper tool The EK6 uses a clamping ring with axial fastening screws E Slide the coupling hub onto the first shaft using a torque wrench uniformly tighten the clamp ing screws E using circular tightening pattern until all the clamping screws are evenly tightened to the cor rect tightening torque as given in table 3 This avoids excessive loading of the clamping ring and improves the TIR Total Indicator Run out of the coupling on the shaft Insert the elastomer ring The other cou pling hub is mounted onto the second shaft end using the same procedure Press the two coupling halves to gether and ensure that the fit length A is maintained See Table 1 Dismounting Pull the coupling halves apart and remove the axial fastening screws E2 Threaded holes 3 have been machined into the hub to accept the fastening screws which will now be used to push off the tapered ring pictur
15. unting Loosen the set screws and remove the coupling Use an ap propriate tool that will not damage the coupling to pry the Set screws DIN 916 coupling halves apart MOUNTING EKL EK 2 Pictures 7 Recess nels Access hole Slide a coupling half onto the shaft to the correct axial po c sition Using a torque wrench tighten the clamp screw E A to the appropriate torque indicated in Table 2 Insert the elastomer ring and press the two coupling halves together Spindle LA Ensure that the fit length A is maintained See table 1 xi Mount the assembled coupling onto the second shaft and m tighten the clamp screw E Dismounting Simply loosen the clamp screw E and remove the coupling Use an appropriate tool that will not damage the coupling to pry the coupling halves apart E1 Set screws ISO 4762 E1 Set screws ISO 4762 RW COUPLINGS COM 3 MOUNTING EKH Picture 8 E1 Screws ISO 4762 MOUNTING EK 4 Pictures 9 Fanuc Motor Access hole Cone 1 10 E1 Screws ISO 4762 MOUNTING EK 6 Pictures 10 Wy The coupling needs to be pre mounted The pre mounted coupling can be set in place radially under consideration of distance P Now the two split hubs can be mounted while using the locking screws E1 applying the right tightening torque Distance A as shown on table 2 must be kept Dismounting For dismounting simply loosen the screws E1 Mounting of the clamping h
16. upling halves SERVOMAX cou mer insert defines the characteristics of the entire drive system plings compensate for lateral angular and axial misalignment SPECIFICATIONS OF THE ELASTOMER INSERTS Type Shore hardness Color Material Relative damping y Temperature range Features A 98 ShA red TPU 0 4 0 5 30 C to 100 C high damping B 64 Sh D green TPU 0 3 0 45 30 C to 120 C high torsional stiffness 80 Sh A yellow TPU 0 3 0 4 30 C to 100 C very high damping E 64 Sh D beige Hytrel 0 3 0 45 50 C to 150 C temperature resistant SERIES 2 800 SERIES 2500 9500 coupling assembly includes 5 individual elastomer segments Red Shore hardness 98 Sh A Green Shore hardness 64 Sh D TER x NY XY A i Ren ph 4 Sf X i ay E wE A er piss x E E Leer S ee es Yellow Shore hardness 80 Sh A Beige Shore hardness 64 Sh D Green Shore hardness 64 Sh D Beige Shore hardness 64 Sh D MAXIMUM TRANSMITTABLE TORQUES MISALIGNMENT VALUES MODEL SERIES EK 2 50 A B C A B C A B C A B C A B C Type Elastomer insert A B C Nominal torque Nin on 2 2 4 0 5 9 12 2 12 5 16 4 17 21 6 60 75 20 160 200 42 Max torque Nm Tmax 4 4 8 1 18 24 4 25 32 6 34 42 12 120 150 35 320 400 85 Distance mm A 7 9 11 5 16 18 20 lateral ES mm 0 08 0 06 0 2 0 08 0 06 0 2 0 1 0 08 0 22 0 1 0 08 0 25 0 12
Download Pdf Manuals
Related Search