TGBgroup. Slewing Rings

Transcription

1 TGBgroup Slewing Rings 1

2 2

3 3

4 TGB Group With over 20 years of experience in bearings, gears and power transission, the TGB Group has becoe a global leader in the developent and production of oveent solutions for the industrial and renewable energy arkets. The TGB Group has anufacturing facilities on different continents which enables us to provide copetitive solutions and custoise projects while being able to retain a fl exible anufacturing syste and offer worldwide deliveries! Our ai is to forge long lasting relationships with our custoers by deonstrating our coitent throughout the engineering process, by exceeding custoer expectations, by providing excellent service and by offering the best value for oney. Our knowledge and experience will enable you to ake the right choice! TGB Group S.L. 4

5 index Applications... 6 Technical inforation... 8 Calculation and check... 9 Installation & aintenance E serie I serie SD serie serie Z serie Accessories Ed. 2 (FEB-16) 5

6 Application Exaples Rotary Tables Fork Lift Mobile Crane 6

7 Application Exaples Man Lift Machinery Cranes 7

8 Slewing rings technical inforation Introduction Slewing rings are echanical eleents designed to withstand high loads (axial, radial and tilting oent) while perforing rotational oveents to displace the load. The axial loads are the ones applied on the sae direction as the rotation axis, while the radial loads are perpendicular to this axis. The ain parts of the slewing ring are two rotating rings and the rolling eleents between the. Both rings are provided with holes for bolts that can be threaded or through holes to fi x the part to the structure. All the slewing rings without teeth can be also ordered with inner teeth or outer teeth. The slewing ring load capability depends on its size and geoetry and also on the type and aount of the rolling eleents. For each slewing ring there is a load diagra that shows the axiu load that the slewing ring can withstand in ters of axial load and tilting oent. In order to choose the proper slewing ring for each application, please follow the procedure entioned in the below fl ow chart: 8

9 Slewing ring calculation and check Equivalent load calculation First of all, the loads that the slewing ring will be supported have to be defi ned. To take into account the differences between an application of high-precision and another one that receives high echanical stress, different application factors ust be considered. These are shown in the table below for different load cases. Table 1: Application factor depending on application TGBgroup recoends adding a safety factor to the loads, for greater caution, depending on the aount of working hours, the frequency at which the peak loads occur, etc. These factors will be applied in the axial load and tilting oent as follows: If the slewing ring is subjected to radial loads, a radial static factor ust be considered. This factor is calculated using the following procedure: 1. Calculate the ratio 2. Calculate the load eccentricity characteristic using: 3. Obtain fro the graphs shown below: 4. Apply this coeffi cient to the axial load and the tilting oent as follows: Once the equivalent axial load and tilting oent have been obtained, it is possible to start choosing the slewing ring and check in the load chart whether it can withstand these loads or not. 9

10 Slewing ring calculation and check Raceway Each slewing ring has a corresponding load chart which shows the axiu axial load and tilting oent that it is able to withstand (The load chart safety factor is 1). A slewing ring is correct for the application if the loading point (cobination between axial load and tilting oent) is below its load curve. The vertical axis represents the equivalent tilting oent and the horizontal axis indicates the equivalent axial load. The blue line indicates the load liit of the slewing ring considering the raceway while the green line shows the load liit of the slewing ring screws. A slewing ring will be valid statically only if the point where intersect the equivalent axial force with equivalent tilting oent is below both lines. In case the axiu load occurs frequently during rotation oveent or a dynaic study of the slewing ring is required, please contact with TGBgroup technical departent for assistance. sually the life of the slewing ring is around load cycles. For highly deanding applications, vibration or shocks, it is recoended to contact the technical departent for a detailed calculation adapted to the application. Screws There are soe requireents regarding the screws that ust be fulfi lled to ensure that the liit bolt curve on the load charts is valid: - All the holes of the slewing ring ust be used when assebling it to the structure. - All the holes ust be tightened to the appropriate tightening torque (Table 2). - The liit bolt curve is only valid when the bolts are working under copression loads. - The bolt quality ust be The threaded length of the bolt ust be at least 1.5ties the bolt diaeter except when using nuts. - As a general rule, it is always considered an additional fl ange of 20 thickness. - It is recoended a bolt length of 5ties the bolt diaeter. For pure radial loads we recoend contacting with the TGBgroup technical departent to perfor a ore accurate study of the bolted union. In case the custoer needs to ensure the union, for exaple for high vibration applications, we recoend the use of self-locking Nord-Lock washers or Loctite. 10

11 Slewing ring calculation and check Friction torque All the slewing rings need a iniu torque to turn the slewing ring that depends on the loads applied, the lubrication, the preload on the slewing ring and the use or not of spacers. This value can be calculated using the following forula: In which is calculated using the following forulas depending on the type chosen: Ball Slewing ring: Roller Slewing ring: Teeth For the toothed slewing rings, the axiu turning torque of the slewing ring will be liited by the odule, the tooth height and the pitch diaeter. There is a possibility to harden the teeth with a heat treatent to increase the axiu loads of the tooth a 20%. On the slewing ring tables two values of load on the teeth appear: the fi rst one corresponds to the fatigue liit while the second one corresponds to the breaking liit. When a turning torque is given, the force that the tooth shall withstand can be calculated with the next forula: For the choice of the pinion that will atch the slewing ring, it ust be taken into account that the pinion teeth ust be higher than the slewing ring teeth (iniu difference = tooth odule). During installation of both parts, the clearance between fl anks ust be checked. This value has to be easured on the ost eccentric part of the slewing ring and it ust not exceed 0,04* (where refers to the odule). Slewing ring speed The axiu linear speed at which the slewing ring can work is 2/s at the raceway. For slewing rings on vertical position this speed is liited at 1/s. The forula used to convert the linear speed in angular speed is the one following: Working teperature The teperature working range of a slewing is sent between -20ºC and 70ºC. 11

12 Installation & aintenace instructions Transport, Handling and Storage Transport only in horizontal position avoiding possible ipacts. The slewing ring should be anipulated carefully and wearing working gloves all the tie. The threaded holes can be used to fi x bolts to handle the slewing ring in a safety way with a hoisting device. Store always in horizontal position and in closed roos. Keep it away fro getting wet. The corrosion protection has a shelf-life of approx. 3 onths in closed packaging. Installation Previous to the installation, a cleaning of the slewing ring and the structure where is going to be ounted ust be done. During the cleaning process avoid the cleaning product to coe inside the slewing ring. It is not allowed the cleaning of the slewing ring with stea high pressure systes. It should be checked that the slewing ring is fully supported by the structure. Install the slewing ring on the ounting surface placing the fi lling plug for the balls (soft zone) at 90º fro the ain load zone. The slewing ring ust be ounted without any external loads. It is convenient to perfor working tests in the structure before the loads are applied. The bolts used ust be fro the diension, quantity and quality indicated. The slewing ring lifespan and functionality ight be affected in case of non-copliance of the points entioned above. TGBgroup recoends retightening the bolts after the fi rst 3 onths of operation at the appropriate tightening torque (Table 2). Table 2: Tightening torques for Metric ounting bolts (non-lubricated thread) Lubrication Slewing rings are supplied with slewing ring raceway prelubricated. It is recoended to grease it again prior to initial operation and re-lubricated accordingly, depending on working conditions. The procedure to regrease consists in injecting grease into all grease nipples one after the other while rotating the slewing ring until a bead of fresh grease appears in one seal. For the toothed slewing rings, the contact area between teeth ust also be greased, for exaple with a brush. 12

13 Installation & aintenace instructions The slewing rings ust be re-greased after each cleaning and also before and after large periods of inactivity, for exaple during the winter onths for cranes and building achines. The reason for re-lubrication is to guarantee iniu properties of the grease. On the following table the re-lubrication intervals can be seen for guidance. The values on the table ust never be a substitute for the values deterined by the experience. The ost usual cause for slewing ring failure is an insuffi cient aount of lubrication Table 3: Recoended re-lubrication intervals (only for guidance) Maintenance and security controls TGBgroup recoends retightening the bolts to the prescribed torque after no ore than 100 working hours to copensate the possible settling. This should be done without external loads applied on the bolts union. This inspection should be repeated fro then on every 3 onths of work. The frequency of the inspection ust be reduced under special working conditions. 13

14 E.20.B C Di La na Li ni P z Fz nor Fz ax Weight KG 1 E B 503,3 415,5 412, ,8 24, E B 640, , ,2 29, E B 742,3 645,5 642, ,2 29, E B 838,1 745,5 742, ,2 29, E B 950,1 845,5 842, ,3 39, E B ,5 942, ,3 39, E B ,3 39,6 91 G = Nº4 x Grease nipples DIN AM 8x1 equally-spaced 14

15 E Series E.25.B Di C La na Li +IT8 +IT8 ni P z Fz nor Fz ax Weight KG 1 E B ,8 71, E B ,8 71, E B ,8 71, E B ,5 77,6 171 G = Nº4 x Grease nipples DIN AM 8x1 equally-spaced E.20.C C D Di La na Li ni P z Fz nor Fz ax Weight KG 1 E C ,5 412, ,8 24, E C 640,8 545,5 542, ,2 29, E C 742,8 645,5 642, ,2 29, E C 838,8 745,5 742, ,2 29, E C 950,4 845,5 842, ,3 39, E C ,5 942, ,3 39, E C ,3 39,6 82 G = Nº4 x Grease nipples DIN AM 8x1 equally-spaced 15

16 E Series E.32.C C D Di La na Li ni P z Fz nor Fz ax Weight KG 1 E C ,9 69, E C ,5 77, E C ,5 77, E C ,5 77, E C ,5 77, E C ,5 77,6 250 G = Nº6 x Grease nipples DIN AM 10x1 equally-spaced E.22.D O D Ha Hb H La na da Li ni di P z Fznor Fzax Weight KG 1 E D ,5 4, , E D.1 403, , , G = N 2 x Grease nipples DIN AM 10x1 equally-spaced 16

17 E Series E.25.D Diensions Fixing holes O Di Ha Hb H La na da Li ni di Gear teeth Tooth Force Mass P z Fz nor Fz ax Weight KG 1 E D ,2 47, E D.1 589, ,5 4, ,9 21, E D ,5 27, E D , M M ,9 37, E D M ,4 38, E D M M ,4 56, E D ,5 44,1 140 G, G1 = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing E.32.D O Di Ha Hb H La na da Li ni di P z Fz nor Fz ax Weight KG 1 E D ,4 35, E D ,3 26, E D ,9 44, E D ,1 72, E D ,7 81, E D ,7 92, E D ,4 97,2 350 G, G1 = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing 17

18 E Series E D O Di Ha Hb H La na da Li ni di P z Fz nor Fz ax Weight KG 1 E D E D E D E D E D.3.V M E D E D E D E D G, G1 = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing E.18.D-R O Di Ha Hb He H La na da Li ni di P z Fz nor Fz ax Weight KG 1 E D.4-RV 403, ,5 88 8,4 16, E D.1-RV 589, ,5 4, ,4 16, E D.1-RV ,4 20,8 85 G, G1 = For the nuber and the position of the grease nipples. please ask for a detailed drawing of the bearing 18

19 E Series E.25.D-R O Di Ha Hb Hc H La na da Li ni di P z Fz nor Fz ax Weight KG 1 E D.2-RV M ,8 45, E D.1-RV ,4 20, E D.1-RV ,4 28, E D.1-RV E D.1-RV ,4 126, E D.3-RV M ,7 41, E D.9-RV M ,7 59, E D.3-RV M , G = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing E.30.D-R O Di Ha Hb Hc H La na da Li ni di P z Fz nor Fz ax Weight KG 1 E D.1-RV ,7 61, E D.1-RV , E D.1-RV E D.1-RV ,3 108, E D.6-RV ,8 103, E D.1-R M E D.1-RV ,2 130,4 475 G = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing 19

20 E Series E D-R O Di Ha Hb Hc H La na da Li ni di P z Fz nor Fz ax Weight KG 1 E D.1-RV E D.1-RV E D.3-R M E D.1-RV E D.2-RV M ,3 216,6 691 G = For the nuber and the position of the greasenipples, please ask for a detailed drawing of the bearing 20

21 I.22.A Diensions Gear teeth Tooth Force Mass B Di P z Fz nor Fz ax Weight KG 1 I A ,1 26, I A ,2 33, I A ,2 33, I A ,2 40, I A ,2 40, I A ,2 40, I A ,2 40,9 97 G = Nº2 x Grease nipples DIN AM 6x1 equally-spaced 21

22 I Series I.22.A.T Diensions Gear teeth Tooth Force Mass B Di P z Fz nor Fz ax Weight KG 1 I A-T ,1 26, I A-T ,2 33, I A-T ,2 33, I A-T ,2 40, I A-T ,2 40, I A-T ,2 40, I A-T ,2 40,9 97 G = Nº2 x Grease nipples DIN AM 6x1 equally-spaced I.2.20.A Diensions Gear teeth Tooth Force Mass B Di P z x Fz nor Fz ax Weight KG 1 I A ,5 59, I A ,5 59,5 38 G = Nº2 x Grease nipples DIN AM 6x1 equally-spaced 22

23 I Series I.20.B C Di La na Li ni P z Fz nor Fz ax Weight KG 1 I B ,5 412, ,7 24, I B ,5 542, , I B ,5 642, , I B ,5 742, , I B ,5 842, ,5 39, I B ,5 942, ,5 39, I B ,5 39,9 91 G = Nº4 x Grease nipples DIN AM 8x1 equally-spaced I.25.B -IT8 C Di La na Li -IT8 ni P z Fz nor Fz ax Weight KG 1 I B ,5 77, I B ,5 77, I B ,5 77, I B ,5 77,7 165 G = Nº4 x Grease nipples DIN AM 10x1 equally-spaced 23

24 I Series I.20.C B C Di La na Li ni P z Fz nor Fz ax Weight KG 1 I C ,5 412,5 326, ,7 24, I C ,5 542,5 445, , ,5 3 I C ,5 642,5 547, , ,5 4 I C ,5 742,5 649, , I C ,5 842,5 737, ,5 39, I C ,5 942,5 841, ,5 39, I C , ,5 39,9 80 G = Nº4 x Grease nipples DIN AM 8x1 equally-spaced I.32.C B C Di La na Li ni P z Fz nor Fz ax Weight KG 1 I C ,8 79, I C ,8 79, I C ,8 79, I C ,8 79, I C ,8 79, I C ,8 79,5 243 G = Nº6 x Grease nipples DIN AM 10x1 equally-spaced 24

25 I Series I D O Di Ha Hb H La na da Li ni di P z Fz nor Fz ax Weight KG 1 I D ,7 14, I D ,7 14, I D.3-V M12x1, ,8 17, G = N 2 x Grease nipples DIN A M10x1 equally spaced 3 G= N'1 x Grease nipples DIN A M10x1 equally spaced I.25.D O Di Ha Hb H La na da Li ni di P z Fz nor Fz ax Weight KG 1 I D ,1 28, I D ,7 35, I D.3.V , M16x1, ,7 33, I D ,7 35, I D ,7 35, I D ,3 49, I D M ,1 64, I D ,9 60,1 143 G = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing 25

26 I Series I.32.D O Di Ha Hb H La 1 I D ,8 40, I D ,9 53, I D , , ,8 143 G = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing na da Li ni di P z Fz nor Fz ax Weight KG I D O Di Ha Hb H La na da Li ni di P z Fz nor Fz ax Weight KG 1 I D ,2 72, I D I D , I D ,9 137, I D G = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing 26

27 I Series I D-R O Di Ha Hb H La na da Li ni di P z Fz nor Fz ax Weight KG 1 I D.1-RV , ,2 30, I D.1-RV ,4 46, I D.1-RV ,8 49, I D.3-RV M ,7 37, I D.1-RV ,3 62, I D.5-RV M M ,8 65, I D.3-RV M G = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing I D-R O Di Ha Hb H La na da Li ni di P z Fz nor Fz ax Weight KG 1 I D.3-RV , M ,6 117, I D.1-RV I D.1-RV I D.1-RV I D.1-RV I D.1-RV I D.1-RV G = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing 27

28 SD.20.B C Di La na Li ni P z Fz nor Fz ax 1 I B ,5 412, ,7 24, I B ,5 542, , I B ,5 642, , I B ,5 742, , I B ,5 842, ,5 39, I B ,5 942, ,5 39, I B ,5 39,9 91 G = Nº4 x Grease nipples DIN AM 8x1 equally-spaced Weight KG 28

29 SD Series SD.25.B Diensions Fixing holes Mass C Di La na Li ni Weight KG 1 SD B SD B SD B SD B G = Nº4 x Grease nipples DIN AM 8x1 equally-spaced SD.20.C Diensions Fixing holes Mass B C D Di La na Li ni Weight KG 1 SD C ,5 412, ,5 2 SD C ,5 542, SD C ,5 642, ,5 4 SD C ,5 742, SD C ,5 842, SD C ,5 942, SD C G = Nº4 x Grease nipples DIN AM 8x1 equally-spaced 29

30 SD Series SD.32.C B Diensions Fixing holes Mass C D Di La na Li ni Weight KG 1 SD C SD C SD C SD C SD C SD C G = Nº4 x Grease nipples DIN AM 8x1 equally-spaced SD D Diensions Fixing holes Mass C Di Ha Hb H La na da Li ni di Weight KG 1 SD D ,5 177,5 124, , SD D SD D SD D SD D ,5 412, , G = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing 30

31 SD Series SD.18.D-R Diensions Fixing holes Mass C Di Ha Hb H La na da Li ni di Weight KG 1 SD D.1-R 403, SD D.1-R SD D.1-R 589, SD D.1-R G = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing SD D-R Diensions Fixing holes Mass C Di Ha Hb H La na da Li ni di Weight KG 1 SD D.1-R SD D.1-R SD D.3-R M SD D.2-R M SD D.1-R G = For the nuber and the position of the grease nipples, please ask for a detailed drawing of the bearing 31

32 Series Serie 32

33 Z Series Z Serie 33

34 Accessories - Pinion Drive 34

35 35

36 TGBGroup (headquarters) C/ L Alsina, Parcela 37 - Nave 3 Polígono Industrial LA MASIA Sant Cugat Sesgarrigues Barcelona - SPAIN Phone: Eail: info@tgbgroup.es TGBGroup Europe B.V. Bennebroekerweg 93 S 1435 CH Rijsenhout The Netherlands Phone: +31 (0) Eail: info@tgbgroup.es 36