ROBA -DS Shaft-Connections

Transcription

1 Maintenance-free High drive security ROBA -D haft-connections K.950.V08.GB Backlash-free Torsionally rigid Connecting Axially flexible Overload protection Torque measuring Easy to install Low mass moment of inertia pace saving

2 ROBA -D Technology with results The ROBA -D is an all-steel disc coupling which transmits the torque up to its max. permissible impact torque absolutely backlash-free and with very high torsional rigidity. The absolute backlash-free ROBA -D design leads to unrestricted applications. ROBA -D couplings Other readily available couplings Torque-use of the backlash-free design Backlash = 0 Twisting of the coupling under load Elasticity Backlash Elasticity Backlash Backlash = 0 Torque Torsion Torsional angle Backlashportion Elasticityportion Backlashportion Elasticityportion Torque Torsion Torsional angle High permissible alternating torques due to full torque-use Torque Permissible alternating torque Time Torque Restriction alternating torque Permissible alternating torque Time 2 ROBA -D couplings are also available in a stainless steel version and in ATEX-design according to guideline 94/9 EC (ATEX 95).

3 ROBA -D Table of contents Backlash-free servo couplings Page 4 Disc pack with 4 bolt fixing (izes 3, 6 and 0) Disc pack with 6 bolt fixing (ize 5) izes 3 to 5 Nominal torques 35 up to 50 Nm Bores 0 to 45 Types ingle-jointed coupling Double-jointed coupling with connection plate Double-jointed coupling with variable length sleeve haft attachments Clamping hub hrink disc hub clamping externally Hub with tapered bore (only sizes 3 and 6) Backlash-free all-steel-couplings Page 6 Disc pack with 6 bolt fixing izes 6 to 60 Nominal torques 60 to 600 Nm Bores 4 to 0 Types ingle-jointed coupling Double-jointed coupling with connection plate Double-jointed coupling with sleeve Double-jointed coupling with variable length sleeve Mounting variations Page 8 Clamping ring hub hrink disc hub clamping externally/internally Keyway large Flange External shrink disc plit clamping hub hrink disc hub large Page 0 Disc pack with 8 bolt fixing izes 300 to 400 Nominal torques 3000 to 4000 Nm Bores 45 to 40 Types ingle-jointed coupling Double-jointed coupling with connection plate Double-jointed coupling with sleeve Double-jointed coupling with variable length sleeve Mounting variations Page 2 hrink disc hub clamping externally Flange External shrink disc plit clamping hub ubject to technical alterations pring rigidities, Mass moments of inertia and weights Page 3 leeve with variable length/options Page 4 Overload protection Page 6 Integrated torque measuring Page 8 Design, ize selection Page 20 Technical explanations Page 2 3

4 ROBA -D izes 3 to 5 Disc pack ingle-jointed coupling with clamping hubs Double-jointed coupling with connection plate and clamping hubs L L 2 l with 4 bolt fixing for sizes 3 to 0 ØD Ød R Ød3 with 6 bolt fixing U for size 5 Fig. Fig. 2: Type Fig. 3: Type Alternative shaft attachments hrink disc hub clamping externally Hub with tapered bore (only for sizes 3 and 6) e. g. for Fanuc-motors l l2 ØD Ød ØD ØdF ØD2 k l3 l4 Fig. 5: Type 95_.2 Fig. 6: Type 95_. _ 5_ Hub hrink disc hub clamping externally (Fig.5) 2 Clamping hub** (Figs ) Hub 2 hrink disc hub/clamping externally (Fig. 5) Clamping hub* (Figs ) Hub with tapered bore*** (Fig. 6) Order number / 9 5. / / / ize inglejointed coupling 0 Doublejointed coupling ingle-jointed coupling (Fig.2) Connection plate (Fig.3) leeve (Fig. 4) 0 3 Bore ** Hub Ø (see dim. page 5) Bore ** Hub 2 Ø (see dim. page 5) When using special sleeves,operational speed rpm must be indicated. 4 H7 H7 Example: 0 / / Hub Ø 30 / Hub 2 Ø 30 * Clamping also available with keyway ** tandard H7, other tolerances possible *** Only for sizes 3 and 6

5 ROBA -D izes 3 to 5 Double-jointed coupling with sleeve (special length) and clamping hubs L 6 H Øh2 The sizes 3 to 5 are especially suitable for servo drives and similar applications due to the extreme compact design and the use of a highstrength aluminium instead of steel. U Fig. 4: Type H, L6 (sleeve ) Max. speed n [rpm] misalignments Nominal Impact Alternating 6) max 4) 7) 5) 4) torque torque torque Axial Angular Radial K r [mm] 2) 3) Type 95_.22_ T K K KN Tks TKW Type 95_.25_ Type 95_.4 a w Connectionplate leeve ize [Nm] [Nm] [Nm] Type 95_.23_ Type 95_._4 _ [mm] [ ] ,5,0 0, ,7,0 0, ,9,0 0, ,,0 0,2 d R H7 8) 9) Bores and dimensions of the hub with tapered bore min. max. 0,05 ize D min. max. von ) von 2) d3 d F D D 2 l 2 l 3 l , , ize H h2 k L L 2 L 6 l l U U ,8 48, , Acc. to customer 50 3,5 52,5 65 Dependent ,5 32 4,5 0 indication 60 3, ,5 on H , ,5 70,3 83,6 33,5 37,5 3,3 46 6,6 ize ) The permissible misalignments must not achieve the max. value simultaneously. 2) Valid with max. allowable shaft misalignment. 5 3) Valid with a torsional direction, max. load cycles 0. 4) The values refer to couplings with 2 disc packs. 5) The values refer to couplings with disc pack. 6) Not valid for a coupling with sleeve. 7) Only permissible as static or quasi-static values. 8) Recommended hub/shaft fit H7 / k6. 9) The transmittable torques refer to a temperature range of -20 C up to + 40 C. The transmittable torque reduces by 0% / 0 C in case of a temperature over 40 C. The max. permissible application temperature amounts to 00 C. d H7 0) 9) Transmittable torques of clamping hubs bore dependent (H - ) x,74 x 0 (H - ) x,74 x 0 0) Identical preferred bores on shrink disk hubs as on clamping hubs (see preferred clamping hub bores in lower Table). Recommended hub/shaft fit H7 / g6. ) Minimum frictionally locked transmittable torque = 80% of T K. 2) Frictionally locked transmittable torque = 00% of T. K (H - ) x,74 x 0 (H - ) x,74 x 0 (valid for H7 / k6) Preferred bores d R of the clamping hub and appropriate transmittable torques T R [Nm] pring stiffness, Mass moments of inertia and weights Page 3 Protection against overload Page 6 Design, ize selection Page 20 Technical explanations Page

6 ROBA -D izes 6 to 60 Disc pack ingle-jointed coupling with keyway hubs Double-jointed coupling with connection plate and keyway hubs U L l L2 Ø D Ø d Ø dp Ø d3 Fig. 7 Fig. 8: Type Fig. 9: Type U d P ize D min max d d3 H H L L2 L4 L6 l U U , 06, , 7 26, Acc.to 97,2 6,4 70 Dependent 45 7,2 7 26, customer 8,4 40,8 206 on H 55 8,4 8 30, indication 39,6 67, ,6 0 37, ,6 25, ,6 2 45,2 Hub Hub 2 Keyway hub standard (Figs ) 0 0 Keyway hub standard (Figs ) Keyway hub large (Fig. 4) Keyway hub large (Fig. 4) hrink disc hub/clamping externally (Fig. 2) hrink disc hub/clamping internally (Fig. 3) hrink disc hub/clamping externally (Fig. 2) hrink disc hub/clamping internally (Fig. 3) Clamping ring hub (Fig. ) Flange (Figs.6-7) Clamping ring hub (Fig. ) Flange (Figs. 6-7) plit clamping hub (Fig. 9) 8 8 plit clamping hub (Fig. 9) hrink disc hub large (Fig. 5) 9 9 hrink disc hub large (Fig. 5) Order number / 9 5. / / / ize inglejointed coupling 0 Doublejointed coupling ingle-jointed coupling (Fig. 8) 0 Connection plate (Fig. 9) leeve (Fig. 0) 2 leeve (Fig. 0) 3 leeve GKR (Fig. 32) 4 leeve CFK (Fig. 33) 5 Bore* Hub Ø (see dim. pages 6 and 8) Bore* Hub 2 Ø (see dim. pages 6 and 8) When using special sleeves, operational speed rpm must be indicated. 6 H7 H7 Example: 6 / / Hub Ø 25 / Hub 2 Ø 30 * tandard H7, other tolerances possible

7 ROBA -D izes 6 to 60 Double-jointed coupling with sleeve or sleeve (special length) and keyway hub L 4, L6 U U Alternative mounting variations Further hub variations and a mounting flange are available for shaft mounting or for attachment to the machine components. ee pages 8 and 9 for details of the alternative mounting variations. H, H Fig. 0: Type H L 4 (leeve ) Type H L 6 (leeve ) ize Nominal torque 6) TKN [Nm] Impact torque 7) Tks [Nm] Max. speed n 3) max [rpm] Permissible 5) misalignments ) 4) 2) ) Type 95_.4 Axial Angular Radial K r [mm] Type 95_._4 _ Type 95_.8 K a kw Connection Type 95_._8 _ [mm] [ ] plate leeve leeve , 0,3, ,3 0,3, ,5 0,4, ,8 0,45, , 0,45 2, ,5 0,55 2,2-2 (H - ) x,74 x 0 ) The values refer to couplings with 2 disc packs. 2) The values refer to couplings with disc pack. 3) Not valid for coupling with sleeve. 4) Only permissible as static or quasi-static values. 5) The permissible misalignments must not achieve the max. value simultaneously. 6) Valid with alternating load as well as with max. permissible shaft misalignment. 5 7) Valid with a torsional direction, max. load cycles 0. Mounting variations Page 8 pring stiffness, Mass moments of inertia and weights Page 3 leeve with variable length/options Page 4 Overload protection Page 6 Integral torque measurement Page 8 Design, ize selection Page 20 Technical explanations Page 2 7

8 Ød Ød Ø d ROBA -D izes 6 to 60 Alternative mounting variations Clamping ring hub hrink disc hub clamping externally hrink disc hub clamping internally k Ø D Ø D Ø dr Ø d2 Ød2 Ø d2 Ød2 U l l l Fig. Fig. 2 Fig. 3 Additional options External shrink disc l l2 plit clamping hub possible with optional keyway acc. to DIN 6885 l Ø dh Ø D2 Ø dw p Fig. 8 Fig. 9 Please observe: Radial installation of single-jointed coupling not possible. The half shells move axially on the design with connection plate. l3 Any missing dimensions can be found in the table on page 6. dg dh* d* R d* dg ize a D D2 d min max min max min max min max min max dw d2 d4 d5 f k l l l2 l3 l4 p TK U2 Z H xM / , /30 27,5 2,5 6xM / , , /40/42 3,5,5 6xM /45/ , , xM /55/ , xM /60/ , xM /70/ , , * ee page 9 for transmittable torques depending on the clamping ring and shrink disc hub bores.

9 Ø D ØdG ØdG Ø D ØTK ØTK Ø Z a ROBA -D izes 6 to 60 Keyway hub large hrink disc hub large k Flange (section A - A) A f Ø d5 Ød5 Ø d4 l l4 U2 A Fig. 4 Fig. 5 Fig. 6 Transmittable torques of shrink disc hubs bore dependent (valid for H7 / g6) Preferred bores d of the shrink disc hub and appropriate transmittable torques T R [Nm] ize Transmittable torques of clamping ring hubs bore dependent (valid for H7 / g6) Preferred bores dr of the clamping ring hub and appropriate transmittable torquest R [Nm] ize Transmittable torques of split clamping hubs bore dependent (valid for H7 / g6) Fig. 7 Preferred bores dh of the split clamping hub and appropriate transmittable torques T R [Nm] ize pring stiffness, Mass moments of inertia and weights Page 3 leeve with variable length/options Page 4 Overload protection Page 6 Integral torque measurement Page 8 Design, ize selection Page 20 Technical explanations Page 2 9

10 ROBA -D izes 300 to 400 Disc pack ingle-jointed coupling with keyway hubs U L l Double-jointed coupling with connection plate and keyway hubs L2 Fig. 20 Fig. 2: Type Fig. 22: Type U2 l L l L3 U l Ø dpi Ø D Ø dp Ø d Ø d3 U Double-jointed coupling with sleeve and keyway hubs (internal/internal) Double-jointed coupling with sleeve and keyway hubs (internal/standard) H H Fig. 24: Type Fig. 25: Type Hub Hub 2 Keyway hub standard (Figs ) 0 0 Keyway hub standard (Figs ) hrink disc hub/clamping externally (Fig. 26) Flange (Figs ) hrink disc hub/clamping externally (Fig. 26) Flange (Figs ) Keyway hub internal (Figs ) 7 7 Keyway hub internal (Figs ) plit clamping hub (Fig. 30) 8 8 plit clamping hub (Fig. 30) Order number / 9 5. / / / ize inglejointed coupling 0 Doublejointed coupling ingle-jointed coupling (Fig.2) 0 Connection plate (Fig. 22) leeve (Fig. 23) 2 leeve (Fig.23) 3 leeve GKR (Fig.32) 4 leeve CFK (Fig.33) 5 Bore* Hub Ø (see dim. pages and 2) Bore* Hub 2 Ø (see dim. pages and 2) When using special sleeves, operational speed rpm must be indicated. 0 H7 H7 Example: 300 / / Hub Ø 50 / Hub 2 Ø 60 * tandard H7, other tolerances possible.

11 ROBA -D izes 300 to 400 Double-jointed coupling with sleeve or sleeve (special length) and keyway hub L 4, L6 U U Alternative mounting variations Further hub variations and a mounting flange are available for shaft mounting or for attachment to the machine components. ee page 2 for details of the alternative mounting variations. H, H Fig. 23: Type H, L 4 (leeve ) Type H, L 6 (leeve ) Permissible flexibilities 5) Nominal Impact Max. speed torque torque Axial )3) Angular 2) Radial ) K r [mm] 4) 6) 7) TKN T nmax K ks a K w Connection ize [Nm] [Nm] [rpm] [mm] [ ] plate leeve leeve ,5 0,25, ,2 0,5 0,35, ,6 0,5 0,4, ,9 0,5 0,5 2 (H - ) x 8,73 x 0 (H - ) x 8,73 x 0 (H - ) x 8,73 x 0 (H - ) x 8,73 x ize dp dpi D min max min max d d3 H H L Acc. to 9, customer indication ize L L L L L l U U U , Dependent 90,2 6 44,4 43, on H ) The values refer to couplings with 2 disc packs. 2) The values refer to couplings with disc pack. 3) Only permissible as static or quasi-static values. 4) Not valid for coupling with sleeve. 5) The permissible misalignments must not achieve the max. value simultaneously. 6) Valid with alternating load as well as with max. permissible shaft misalignment. 7) Valid with torsional direction, max. load 5 cycles 0. Mounting variations Page 2 pring stiffness, Mass moments of inertia and weights Page 3 leeve with variable length/options Page 4 Overload protection Page 6 Design, ize selection Page 20 Technical explanations Page 2

12 Ø dw Øds Ø d ØTK Ø Z a ROBA -D izes 300 to 400 Alternative mounting variations hrink disc hub clamping externally k Flange (section A - A) A f Ø D Ø d2 Ø D2 Ø d4 l U2 A Fig. 26 Fig. 27 Fig. 28 Additional options External shrink disc plit clamping hub with additional keyway acc. to DIN 6885 l Ø D p Ø dh l2 l Fig. 29 Fig. 30 Please observe: Radial installation work not possible on single-jointed couplings. Dimension l3 not suitable for design with connection hub. Any missing dimensions can be found in the table on page. dh d* ize a D D2 d min max min max dw d2 d4 f k l l l2 l3 p TK U2 Z H7 l xM / , , xM / , xM /00/ , xM / , * ee table below for transmittable torques depending on the shrink disc hub bores. Transmittable torques of shrink disc hubs bore dependent (valid for H7 / g6) Preferred bores d of the shrink disc hub and appropriate transmittable torques T R [Nm] ize

13 ROBA -D izes 6 to 400 pring stiffness, Mass moments of inertia and weights ) 2) Torsion Disc pack Connection plate Disc pack Tube sleeve 3) Axial Angular CT LP CT H rel. J G J G ize [N/mm] [Nm/rad] [Nm/rad] [0 Nm mm/rad] [0 kgm²] [kg] [0 kgm²] [kg] ,3 0,0064 0,023 0,078 0, ,8 0,076 0,04 0,0502 0, ,0354 0,050 0,206 0, ,0774 0,077 0,2076 0, ,08 0,08 0,23 0, ,2 0,09 0,44 0, ,26 0,5 0,95 0, ,74 0,29 2,3, ,9 0,35 4,6, ,27 0,67 9,72 2, ,60,5 8,6 2, ,58 2,4 2,54 4, ,85 3,92 53,27 8, ,86 6,52 4,26 2,64 auf Anfrage auf Anfrage auf Anfrage pring stiffness Mass moments of inertia J and weights G -3 Mass moments of inertia J [0 kgm²] and weights G [kg] Hub with tapered bore Clamping ring hub 4) hrink disc hub 4) leeve Clamping hub 4) with H = 000 mm per 000 mm tube ize J G J G J G J G J G 3 0,07 0,053 0,020 0,070 0,0432 0,42 0,3485,009 0,3230 0, ,0385 0,2 0,0543 0,2 0,292 0,254 0,7552,36 0,6822, ,635 0,22 0,3034 0,379,3728,678,75, ,2945 0,297 0,6050 0,570 2,340 2,079,98, ,63 0,76 0,27 0,49 2, 3,63,93 3, ,29,2 0,57 0,7 3,77 4,42 3,43 4, ,84 2,5,03 7,8 6,82 7,2 6, ,3 3,7 2,46,7 2,62 8,09 0,86 7, ,49 4,9 5,59 2,73 24,98 0,22 2,86 9, ,7 7,6,4 3,99 49,43 6,83 4,6 5, ,64 7,6 5,24 7,45 4,6 5, ,82 4,2 09,74 27,0 89,57 23, ,23 23,00 20,27 38,66 69,22 34, ,2 35,72 364,62 53,84 273,78 46,78-3 Mass moments of inertia J [0 kgm²] and weights G [kg] leeve Hub keyway 4) Hub keyway large 4) Hub keyway internal 4) hrink disc hub large 4) Flange ize J G J G J G J G J G J G 6 0,32 0,39 0,27 0,46 0,86 0, ,777 0,788 0,24 0, ,6 0,54 0,55 0,69,7,26 - -, 23,025 0,43 0,34 40,38 0,93,6,02 3,89 2, ,884,709 0,88 0,5 64 3,02,46 2,58,72 8,98 3, , 809 2,532 2,03 0, , 2,04 6,8 2,83 8,2 4, ,77 3,97 4,08,2 60 2,96 3,38 2,5 4,25 36,00 7, ,35 6,076 9,7 2, ,22 3,66 3,4 4, ,8 3, ,08 2, ,94 5,38 28,2 6, ,64 5, ,04 4, ,40 9,32 63,0 0, ,85 9, ,39 7, ,09 5,62 34,49 6, ,76 4, ,60 2,24 ) The CT-value of a double-jointed coupling is calculated approximately as follows: C Ttot. 2 H [mm] 2 [mm] ( ) C TLP C T Hrel. 2) Mass moments of inertia and weights are valid for disc pack with screws, nuts and washers. 3) The values refer to disc pack. 4) J and G are valid for a maximum bore (and clamping screws if available). leeve with variable length/options Page 4 Overload protection Page 6 Integral torque measurement Page 8 Design, ize selection Page 20 Technical explanations Page 2 3

14 pecial sleeve with variable length leeves with variable length (cardan shaft substitution) The requirements when using special sleeves with variable length differ substantially. The ROBA -D shaft coupling offers the optimum solution in each case for the existing case of problem due to different sleeve designs. In this connection quite often the requirements of traditional cardan shafts are fulfilled, at the same time the design all steel coupling has decisive advantages as: Resistance to backlash Absolute maintenance-free design uitability for high speeds The misalignment of the coupling can be increased to a 2-3 balancing level by an exchange of the traditional disc packs (contact the factory for availability and technical data). Technical comparison - special sleeves U tandard design Type h d4 Fig. 3 U Large diameter sleeve Type h2 d5 l4 Fig. 32 U Composite sleeve (CFK) Type h3 d5 l4 Fig. 33 ize d4 d5 h h2 h3 l4 U election assistance: sleeves with variable length Type Type Type x 73 5,5 7 peed x 60 x x x 7 Torsional stiffness x 70 x 96 x 8 7 x 80 x 7 x x Weight Mass moment of inertia Corrosion resistance Change of the length with a temperature influence Costs x: Technical data on request Main application Traditional application Medium speeds High torsional stiffness High speeds Low mass

15 ROBA -D Options Options and alternatives with intermediate shafts Intermediate shaft Variable bridging of any shaft distances by adapted steel-solid shafts, mounted between two standard hubs. GRP-sleeve Fig. 34 Glass fibre composite sleeve for couplings in an electrically insulated design. Fulfills the requirements to insulation quality (CTI 600). Axially split sleeve Fig. 35 Allows a radial disassembly of input and output components, without axial movement. Preferred solution with large couplings in combination with internal keyway hubs. Multi cardanic design Fig. 36 Fig. 37 For applications with large axial displacements caused for example by: tandard load or overloading of the connected components. upport movement variations Temperature differences Axial backlash due to bearing Vertical support ROBA -D couplings with long vertical sleeves to support the sleeve weight. Fig. 38 Overload protection Page 6 Integral torque measurement Page 8 Design, ize selection Page 20 Technical explanations Page 2 5

16 ROBA -D Protection against damaging overloads Combination with EA -Compact Torque limiting clutch in ratchetting, synchronous or overload designs. Flexible adaptation of the overall length for shaft connection with different shaft distances. uitable, where high torsinal stiffness or high speeds are required. Fig. 39 Combination with EA -element clutch Complete disconnection of input and output in the event of an overload. Especially suitable for heavy, high speed drives with high rotating masses. Maximum torsional stiffness with highest density. Fig. 40 Combination with ROBA -slip hub Overload protection with load holding function. Compensation of single dynamic peaks (resonance, starting peaks) without downtimes. lip control recommended for a protection against thermal overload. Fig. 4 hrink disc hub with integral overload protection Modified shrink disc hub with integral slip bushing. uitable for protection of single, very short dynamic torque peaks. Not suitable with longer slipping times/high slipping speeds. Fig. 42 6

17 ROBA -D Technical comparison of possible overload combinations Combination with EA -Compact Torque-range Nm witch-off accuracy 5% Load dropping Fig. 43 Number of overload cases Time required for recommissioning Input shaft damage high 0 no Combination with EA -element clutch Torque-range Nm witch-off accuracy 5% Load dropping Fig. 44 Number of overload cases Time required for recommissioning Input shaft damage high minute no Combination with ROBA -slip hub Torque-range Nm witch-off accuracy 0 to 40% Load-holding Fig. 45 Number of overload cases Time required for recommissioning Input shaft damage very high 0 no hrink disc hub with integral overload protection Torque-range Nm witch-off accuracy 0 to 70% Load-holding Fig. 46 Number of overload cases Time required for recommissioning Input shaft damage very less Disassembly and assembly of the coupling yes Integral torque measurement Page 8 Design, ize selection Page 20 Technical explanations Page 2 7

18 EA -control-d Low Cost Torque Transducer Coupling Torque - signal transmitter Integral with a proven backlashfree disc coupling Easy electrical connection and mechanical assembly For energy and signal Easy radial mounting Absolutely maintenance and wearfree Robust and reliable machine component Absolute maintenance-free design Fig. 47 Extension sensor Applications Torque measuring with strain gauges Output signal proportional to torque Process control ROBA -D Quality assurance Machine supervision Testing equipment Hub Keyway hub standard (Figs. 9-0-) Keyway hub large (Fig. 4) hrink disc hub/clamping externally (Fig. 2) hrink disc hub/clamping internally (Fig. 3) Clamping ring hub (Figs. and ) Flange (Figs. 6-7) hrink disc hub large (Fig. 5) Order number ize Compensation of shaft misalignments High torsional rigidity High permissible alternating loads High flexibility of shaft/hub connections / 9 7. Hub 2 Keyway hub standard (Figs ) Keyway hub large (Fig. 4) hrink disc hub/clamping externally (Fig. 2) hrink disc hub/clamping internally (Fig. 3) Clamping ring hub (Figs. and ) Flange (Figs. 6-7) hrink disc hub large (Fig. 5) 4 Bore* Hub Ø (see dimensions pages 6 and 8) Example: 6 / / Hub Ø 25H7 / Hub 2 Ø 30H7 8 Pages 6 9 / / Mounting variations Bore* Hub 2 Ø (see dimensions pages 6 and 8) * tandard H7, other tolerances possible

19 EA -control-d 20 Coaxial output 79 ub-d plug 9 poles Ø dr Ø D Ø D3 max. A l5 l6 L l Fig. 48: Type (other mounting variations see pages 6-9) Fig. 49 Nominal Peak Permissible misalignments pring stiffness torque torque Max. speed 2) 4) Axial 3) Angular 2) Radial Torsional ) 3) 5) TKN Tks nmax K a kw kr Angular stiffness Axial ize [Nm] [Nm] [rpm] [mm] [ ] [mm] [Nm/rad] [Nm/rad] ,8 0,7, ,7, ,7 0,7, Mass moments of inertia J and weights G Clamping ring hub Disc pack Adaption flange Extension sensor J G J G J G J G ize -3 [0 kgm²] [kg] -3 [0 kgm²] [kg] -3 [0 kgm²] [kg] -3 [0 kgm²] [kg] 7) 6) 8) 6 0,63 0,76 0,08 0,08 0,38 0,43 0,5 0, ,84 2 0,26 0,5,67, 2,2, ,7 7,6 3,27 0,67 5,36 3,89 20,04 4,27 dr 9) ize A D D3 min max l l5 l6 L ,2 7, ,8 8, ,2,6 ) Other torques and sizes on request. 2) The values refer to couplings with 2 disc packs. 3) The values refer to couplings with disc pack. 4) Only permissible as static or quasi-static values. 5) Total torsional stiffness (from sleeve, flange and disc packs). 6) disc pack incl. screws and nuts. 7) Valid for maximum bore. 8) Incl. screws. 9) Transmittable torques of clamping ring hubs see page 9. Technical data for electronics: Max. total errors: % of TKN Nominal temperature range: C upply voltage: 24 VDC (+-5 %) Temperature drift zero point: 0,04 % / K Max. consumption: 0, A Temperature drift measured value: 0,03 % / K Output signal: V (torsional Band width: 0... khz (-3 db) direction dependent, 5 V relating to T KN) Max. radial air gap: 3 mm In case of higher accuracy requirements contact the factory. Protection: IP 54 Max. dynamic load 00 % of TKN Connection: ub-d plug, 9 poles Permissible speed: 0 - n max Design, ize selection Page 20 Technical explanations Page 2 9

20 t 20 ize selection torques Coupling size selection. Direct coupling selection Assuming the customer knows all effective torques applicable to the coupling during operation and the maximum temperature is 50 C (sizes 6 and 0 00 C), a suitable coupling can then be selected having a permissible maximum catalogue torque over the max. torque applied during operation. There are no additional restrictions necessary with existing shaft misalignment. For the ROBA -D couplings from size 6 on there are also no restrictions necessary with alternating torques. For the coupling sizes 6 and 0 the alternating torques mentioned on page 5 are to be considered. The starting torque and torsional rotational direction are to be noted. The direction of rotation must only be.5 times the permissible coupling nominal torque. The direction of rotation should remain the same, whilst the 5 max. permissible number of the load cycles must be smaller than Calculated coupling selection with drive and application factor f hould the customer only have partial drive data, a design layout based on and speed of the drive unit, together with application and temperature factors are recommended. TKN 9550 P fb ft n Calculation example: A ROBA -D coupling shall be dimensioned for the drive of a reciprocating pump using an electric motor. Following marginal data are available: Drive unit: electric motor Nominal capacity P = 0 kw Nominal speed n = 450 rpm Max. starting torque T Amax = 2,5 times motor nominal torque Working machine: reciprocating pump Max. ambient temperature 60 C Required coupling nominal torque T : TKN TKN B Definition of terms: T KN [Nm] Nominal torque of the coupling P [kw] Nominal capacity of the drive unit fb Application factor according to Table 2 ft Temperature factor according to Fig. 50 n [rpm] Nominal speed of the drive unit , , [Nm] Required coupling impact torque T : K TNom = T Amax TNom = 65,9 [Nm] T K = 2,5 T T Amax Nom 64,8 [Nm] elected coupling size: ROBA -D 6 with a nominal torquet of 60 Nm and an impact torque T of 240 Nm. K KN Duty cycle from Table = I Application factor fb from Table 2 =,9 Temperature factor ft from Fig. 50 =,0 Max. starting torque = 2,5 times Motor nominal torque KN ROBA -D Classification of different machines in duty classes. Construction machines - Concrete mixer - Chain conveyor - Chain vehicle - Crusher Chemical industry - Agitators (viscuous liquids) - Agitators (flooding liquids) - Centrifuges - Mixers Blowers, fans Generators/transformers - Frequency transformers - Generators Food processing - Kneading machines - Mills - Packaging machines Paper machines Condensers Conveying plants - Conveyor belts - Inclined hoists - Goods lifts - Passenger lifts Wood working and plastic process - Planing machines - aw frames - Extruders - Mixers Crane systems Metal working machines -tamping machines, presses -Machine tools Pumps - Centrifugal pumps (flooding liquids) - Centrifugal pumps (viscuous liquids) - Reciprocating pumps/plunger pumps Textile machines Washing machines Table ervice factor f B Drive unit Electric motor, turbines, hydraulic motor Piston engine with more than 3 cylinders Piston engine with up to 3 cylinders Table 2 Temperature factor f [-],25,20,5,0,05,00 Fig. 50 I I I I I I I I I I I I Load class of the working machine I I,,4,9,4,7 2,2,7 2,0 2, Operating temperature [ C]

21 ROBA -D Technical explanations Permissible shaft misalignments ROBA -D single-jointed couplings (Type 950. _) compensate angular and axial shaft misalignments. ROBA -D double-jointed couplings (Type 95. _) compensate angular, axial and radial shaft misalignments (Fig. 52). If there are several kinds of misalignments simultaneously, they influence each other. The permissible values of the misalignment depend on each other according to Fig. 5. The amount of the actual misalignments - in percentage of the maximum value - must not exceed 00 %. Example (see Table 7 and Fig. 5) ROBA -D, size 40, Type Existing axial displacement ΔK a = 0,6 mm corresponds to 40 % of the permissible maximum value ΔK a =,5 mm. Existing angular misalignment in the disc pack ΔK w = 0,3 corresponds to 30 % of the permissible maximum value ΔK w =. => Permissible radial misalignment ΔK r = 30 % of the maximum value ΔK =,5 mm => ΔK = 0,45 mm. r Radial misalignment K [%] r % 20 Fig. 5 Balancing of the coupling r Fig. 52 Not necessary for most applications. Following points are decisive, if balancing is necessary: - Circumferential speed of the coupling (Fig. 53) - Length of the sleeve (Fig. 54) - Required balancing quality Fig. 53 Fig % 20 Operating speed [rpm] Operating speed [rpm] 50% 25% 40% K a [%] K w [%] Angular misalignment 0% 30% Axial displacement Balancing - standard couplings Balancing not necessary Balancing depending on application ΔK leeve length [mm] ΔK a Dynamic balancing required principally Balancing depending on application Outer diameter coupling [mm] ΔK r Balancing - couplings with sleeve (special length) Dynamic balancing 2400 required principally Balancing not necessary w 2x ΔK w The smooth running of a machine is not influenced by the existing balancing quality, but at least in the same degree by parameters such as: - rigidity and distance of the adjacent bearing, - sensitiveness and mass of the total construction. Figs. 53 or 54 are only reference values, with which a balancing is recommended. All components of the ROBA -D couplings, beside of the sleeve, are machined all over. This helps to achieve a balance quality of Q 6,3/500 (IO DIN 940) on individual parts. In case of an order with a special sleeve the operating speed must always be indicated. For higher demands regarding the balancing quality: - Balancing of the single elements or the completely assembled coupling (on request). - Design of the hubs with finish bore. Permissible speeds with special sleeves (critical whirling speed) (Fig. 55.), sleeve GKR (Fig.55.2) and sleeve CFK /Fig. 55.3) Example: ize 40, sleeve length H = 600 mm = > permissible speed 2600 rpm (see Fig. 55.) Permissible speed [rpm] Fig. 55. leeve length Hs [mm] Fig Fig Permissible speed [rpm] Permissible speed [rpm] D 60/300 D 500 D 850 D leeve length Hs [mm] D 6 D 40 D 64 D 00 D 60/300 D 500 D 850 D leeve length Hs [mm] D 3 D 6 D 6 D 0 D 25 D 5 D 40 D 64 D 00 D 60 D 300 D 500 D 850 D 400 2

22 Technical explanations upply condition Delivery manufacturer assembled for servo couplings sizes 3, 6, 0 and 5. upply in components and single components for all other sizes. Corrosion protection: phosphating, disc pack made of stainless steel. Hub designs: pilot bored or with finish bore. Bore: Tolerance H7* (other fits possible). Bore concentricity: 0,03 mm (see Fig. 56). Keyway hub: keyway to DIN 6885 sheets or 3. Fig. 56 Temperature resistance Mounting position Brief description - Hub assembly Please take the detailed asembly description from the installation and operating instructions referring to the respective product. Hub assembly of the Types 95_.0 or 95_. (hubs with keyway, Fig. 57): Push the hubs onto the shaft with a suitable device. Axially fixing:- et screw radially over the key, - or locating cover and axial screw into tapped shaft. The shaft fit should suit the application: - alternating torsional direction: interference fit, - operation in one direction: transitional fit B A 0,03 A B Temperature resistance up to +250 C (up to +00 C for sizes 3,6, 0 and 5). In case of temperatures over +20 C: self-locking hexagon nuts according to EN IO Horizontal assembly. For vertical or inclined mounting: vertical support for long sleeves (sleeve ) (Fig. 38, page 5). Factory machining of the spigot in both hub and sleeve for vertical support button. ROBA -D Hub assemby of the Types 95_.2 /95_.3 (hubs with shrink disc) or 95_.4 (hubs with clamping ring) Push the hubs onto the shaft with a suitable device and bring them to the correct position. Tighten the clamping screws successively in 3 to max. 6 tightening terms using a torque wrench. Notes! Contact surfaces between shrink disc and hub (Fig. 58), clamping ring and hub (Fig. 59) factory greased). Hub bores and shaft ends: free of grease (Fig. 60). Greasy or oily bores or shafts do not transmit the maximum torque of the coupling. The shafts must not have any keyway. urface of the shafts: finely turned or ground (Ra= 0,8µm) 2 haft material: yield point at least 350 N/mm, e. g. t60, t70, C45, C60. Recommended shaft fit: - izes 3, 6, 0 and 5: - Clamping hub: k6 - hrink disc hub: g6 - izes 6 up to 400: - Clamping ring / hrink disc / plit clamping hub: h6/g6 hort description - Coupling assembly Please take a detailed assembly instruction from the installation and operating instructions belonging to the respective product. The following assembly instruction is valid for the ROBA -D couplings from size 6 on. Fig. 6 Fig. 58 Fig. 59 Fig. 60 x x Fig. 62: detail X Bolt the disc packs (, Fig. 62) reciprocally with the sleeve and hubs via slightly oiled hexagon socket screws (2), washers (3) and hexagon nuts (4). The pretensioning force at the disc pack () is normally* arranged via the hexagon nut (4). A twisting of the disc pack () is to be avoided (secure the screw (2) against twisting). s 2 3 a 4 et screw Locating cover Please observe! The radius of the collar bushing (part a, Fig. 62 detail "X") must lie in the recesses of the hubs and sleeves. 22 Fig. 57 * The head of the hexagon head cap screw (2) with washer (3) must always contact the disc pack ().

23 Headquarters Chr. Mayr GmbH + Co. KG Eichenstraße Mauerstetten Telephone: 0834/8040 Fax: 0834/ info@mayr.de Great Britain Italy France witzerland UA ingapore China Korea Japan Mayr Transmissions Ltd. Valley Road, Business Park, Keighley, BD2 4LZ, West Yorkshire 0535/ /66326 sales@mayr.co.uk Mayr Italia.r.l. Viale Veneto, 3, aonara (PD) 049/ / info@mayr-italia.it Mayr France.A. Z.A.L. du Minopole BP 6, 6260 Bully-Les-Mines contact@mayr.fr Mayr Kupplungen AG Tobeläckerstraße, 822 Neuhausen am Rheinfall 052/ / info@mayr.ch Mayr Corporation 4 North treet, Waldwick NJ / / info@mayrcorp.com Mayr Transmission () Pte. Ltd.- Blk 33, Jurong East treet. 3, Unit 03-29, Asean 0065/ / info@mayr.com.sg Mayr hanghai Room 608, No. 277, West Zhongshan Road, Conch Building, hanghai 02/ / sales@mayr.com.cn Mayr Korea 60-, Woongnam-Dong, ROK Changwon, Rep. of Korea 055/ / info@mayrkorea.com umitomo HI-PTC ales Co., Ltd , Kandakaji-Cho, Chiyoda-Ku, J Tokyo 03/ / Gotou.k@sumiju.co.jp Taiwan India Australia outh Africa German Tech Auto Co. Ltd. No.58, Wu Chuan Road, Wu-Ku Industrial Park, Taipei Hsien 02/ / steve@zfgta.com.tw National Engineering Company (NENCO) J-225, M.I.D.C. Bhosari Pune / / nenco@vsnl.com Transmission Australia Pty. Ltd. 22 Corporate Ave, 378 Rowville, Victoria 039/ /75544 info@transaus.com.au Torque Transfer Private Bag 9, Elandsfontein 406 0/ / torque@bearings.co.za Machine Tool DTC. Co.Ltd., Applications in China Block 5th, No. 699, East Zhulu Road, hanghai 02/ / dtcshanghai@online.sh.cn Austria Benelux tates Brazil Canada Czech Republic Denmark Finland Greece Hongkong Hungary Indonesia Israel Malaysia New Zealand Norway Philippines Poland Romania Russia lovakia lovenia pain weden Thailand Turkey Note: If a country is not shown, please refer to headquarters or our web site to be advised of the nearest responsible agent. Experts instead of Experiments 23

24 Delivery Programme Experts instead of Experiments 2 4 Mechanical safety clutches limit reliably torques and forces to an infinitely adjustable value in your equipment and machines and prevent overload damage and expensive downtime. ROBA -shaft connections EA -safety clutches Our shaft connections transmit the torques backlash-free and compensate shaft misalignments. With the allsteel bellows coupling and disc couplings as well as flexible couplings a pallet is available for the most different requirements. pring applied safety brakes offer high operational security for all applications, protecting personnel and equipment. As working brake or holding brake ROBA-stop brakes have their machines safely under control, even with a sudden machine stop for emergency OFF or failure. ROBA-stop safety brakes ROBATIC /ROBA -quick-drives Electromagnetic clutches and brakes of the Types ROBATIC and ROBA -quick have a constant switching behaviour during the whole service life. Positioning accuracy, reliability and operational security are increased. 3 tendo -PM Motors have a remarkably commutation system with a generously dimensioned commutator, a high number of commutator disc and brushes with a large surface area. This technical luxury distinguishes the tendo -PM with high service life of the brushes and an optimum operation. tendo motor gearbox controllers 5 8/05/2006/CG/C