HELICAL AND BEVEL-HELICAL UNITS

Transcription

1 I V-I IS

2 S I W I QS I IS ISI V-I IS ISI II SII, KY SYS IIY I SVI SSIII IY SI S I SIS I SIS I SIS I SIS /V V-I SIS /V V-I SIS /V V-I SIS SIS /V SIS SIS SIS SIS SIS SIS V SIS SIS V SIS SIS V SIS S S I SIIS IS IZ IS S I ( SI W YS) ISI S S- IIS KS VIS V S & S II WIS I QIIS II page his catalogue cancels and replaces any previous edition and revision. ll listed data are approximate and it's understood that this entails no obligation on our part. We reserve the right to implement modifications without notice.

3 4 II lliance ransmission gear units are suitable for most applications in both horizontal and vertical drives. ew design, outstanding innovations offer : increased power capacity more sizes more competitiveness with the same high reliability he high power to weight ratio of all units, combined with low volume, enable installation in the most critical situations. ew concepts have been used to improve the noise level in a consistent way, by grinding all gears sets, both the helical and the leason spiral bevel type gears. ecause of higher capacity, particular consideration has been given to efficiency and housing surface area to guarantee a convenient heat dissipation in most cases. When necessary, units can be supplied with: fans fitted to high speed shafts cooling water coil fan and cooling coil separate oil cooler incorporated in forced lubrication system. SS ear cases are of rigid close grained grey cast iron construction up to size 0. abricated steel cases are available as standard from size 1 up and as optional for smaller sizes. omputer designed and machined. S igh quality alloy case hardening materials provide long life, wear resistance and fatigue strength. elical and spiral bevel gears( usually) are ground to high standards and quiet running characteristics. ife and wear calculations (.000 hrs with f m =1) based on IS 6336, I 3990 and 01 recommendations.

4 5 SII 30 S 2 ounting position igh speed shaft S solid hollow+motor flange solid+motor flange Shaft arrangement atio i utput shaft S solid hollow hollow wih shrink disc Size o. of stages single reduction double reduction triple reduction quadruple reduction ype helical unit horizontal bevel-helical unit V vertical bevel-helical unit KY SYS IIY (η) f m i i η mechanical service factor transmission ratio nominal transmission ratio efficiency 99% Single reduction helical unit 98% ouble reduction helical unit 98% riple reduction helical unit 96% Quadruple reduction helical unit f a n 1 n 2 t ambient correction factor high speed low speed thermal capacity min -1 or rpm min -1 or rpm kw 97.5% ouble reduction bevel-helical unit 96.5% riple reduction bevel-helical unit 95.5% Quadruple reduction bevel-helical unit t nominal thermal capacity kw nominal power kw absorbed motor power kw t temperature celsius torque m nominal torque m high speed shaft overhung load low speed shaft overhung load high speed shaft mass moment of inertia Kgm 2

5 6 I SVI f m or stop-starts per hour exceeding 5, please refer to us. rime over l. motor, steam turbine, hydraulic motor. ulti-cylinder internal combustion engine. Single-cylinder internal combustion engine. uration of service oad classification (hrs/day) niform load oderate shock eavy shock < > < > < > SSIII niform load oderate shock eavy shock * refer to us riven machine ype of load riven machine ype of load gitators pure liquids liquids and solids liquids-variable density lowers centrifugal lobe vane ar pullers larifiers lay working machinery brick press briquette machine clay working machinery ompressors centrifugal lobe reciprocating multi-cylinder single-cylinder onveyors-uniformly fed apron assembly belt bucket chain screw onveyors-heavy duty apron assembly belt bucket chain reciprocating screw shaker ranes main hoist bridge travel trolley travel rushers ore stone sugar redges conveyors cutter head drives pumps screen drive stackers levators bucket-uniform load bucket-heavy load centrifugal discharge gravity discharge ans centrifugal cooling towers induced draft forced draft large, mining large, industrial light, small diameter eeders apron belt disc reciprocating screw * * * *

6 7 riven machine ype of load riven machine ype of load ood industry slicers cereal cooker dough mixer meat grinders enerators oists heavy duty medium duty aundry tumblers umber industry de-barkers burner conveyor chain saw, drag saw chain transfer craneway transfer conveyor slab conveyor conveyor-belt conveyor-chain tipple hoist conveyor tipple hoist drive waste conveyor achine tools bending roll punch press-gear driven plate planers tapping machine other machine tools main drives auxiliary drives etal mills slitters table conveyors non-reversing reversing wire winding machine ixers concrete mixer constant density variable density il well pumping aper mills agitators de-barkers-hydraulic de-barkers-mechanical barking drum bleacher calenders conveyors cutters-plates * * cylinders dryers felt stretcher felt wipper jordans rinting press umps centrifugal proportioning reciprocating single acting >2 cylinders single acting <3 cylinders double acting >1 cylinder double acting 1 cylinder rotary,gear, lobe type ubber and plastics crackers refiners rubber calenders films extruders sheets extruders extruders Sand muller Sewage disposal equip. bar screeners chemical feeders dewatering screws scum breakers mixers thickeners vacuum filter Screens air washing rotary-stone or gravel travelling water intake Sugar industry cane and beet knives crushers pulp conveyors extile industry calenders cards driyers dyeing machinery knitting machines looms mangles soapers spinners washers * * *

7 8 IY ominal thermal capacities t he tables below show the values of the thermal capacities under different cooling conditions, viz : natural cooling, fan cooling and coil cooling. Values apply to an ambient temperature of degree. or different ambient temperatures, the nominal thermal capacity tn can be obtained by multiplying the thermal capacity t for the selected type of cooling, by the ambient thermal factor f a Whenever a high heat dissipation level is required together with high operational reliability, it is recommended to consider the application of a separate oil-cooler, incorporated in a forced lubrication system. t = t x f a f a ambient correction factor mbient temperature w/o auxiliary cooling uxiliary cooling 1, 1, ,86 0,94 0,72 0, ,56 0,83 hermal capacity (kw) - o auxiliary cooling n n

8 9 hermal capacity (kw) - an cooling n With 2 fans, moltiply by 1.2 n ooling coil n n

9 SI S ata required : bsorbed motor power (kw) Input speed n 1 (min -1 ) earbox ratio i pplication: to state f m II fm = fm SIZ t S W K t YS dditional checks: radial loads, etc efer to us xample: elical unit i = 5,6 = 2 kw at min -1 f m = 1,75 mbient temperature = = f m = 2 x 1,75 = 385 kw he unit gives 441 kw at rpm, hence it should be mechanically in order. he nominal thermal capacity without auxiliary cooling (see table page 7) is : t = 0 x 0,86 = 5 kw Since this value is lower than the power, the extra heat generated must be dissipated by an auxiliary system with a fan, for instance. he nominal thermal capacity becomes : t = 261 x 0,94 = 5 kw Since =2 kw is lower than t = 5 kw, the unit with one fan is convenient. In addition to the auxiliary cooling (fan/s, coil and fan+coil), we recommend to consider that a definitive solution to the thermal problem can be achieved by a cooler (oil/water or oil/air if water is not available). or medium to large unit sizes, such a cooler is also more cost economical.

10 I IS V-I IS

11 Series - elical units - ominal power rating (kw) Size i n1 n min

12 Series - elical units - ominal power rating (kw) Size i n1 n min , ,8 8, ,

13 V Series - evel-helical units - ominal power rating (kw) Size i n1 n min V V

14 V Series - evel-helical units - ominal power rating (kw) Size i n1 n min ,3 6,3 4, , , V

15 Series - elical units - utput torques 2 (m) Size i

16 V Series - evel-helical units - utput torques 2 (m) V V V Size i

17 I IS series single reduction S 1 Q 1 Q Sp I I Sp i i Size 1 I Q S Sp

18 19 I IS series double reduction S 1 Z Q Z Q Z1 1 I Sp Z1 I Sp i i.5- Size 1 I Q S Z Z1 Sp , = , , ,

19 I IS series double reduction S V Z 1 1 i i Size 1 S V Z

20 1 Z Q I IS series triple reduction S Z1 1 Z Z1 Q I Sp I Sp Size 1 I Q S Z Z1 Sp , , , ,

21 22 I IS series triple reduction 1 S V Z 1 Size 1 S V Z

22 23 I IS series quadruple reduction S Z Q Z1 1 1 Z Q Z1 Sp I I Sp Size 1 1 I Q S Z Z1 Sp , , , ,

23 I IS series quadruple reduction S V 1 Z Size 1 1 S V Z

24 V-I IS series double reduction S Q Q I I 1 i 5-.2 i.5- Size 1 1 I Q S

25 26 V-I IS V series double reduction S Q Q 1 I Sp I Sp i 5-.2 i.5- Size 1 1 I Q S Sp

26 27 V-I IS series triple reduction S Q 1 Q 1 1 I I 1 i i Size 1 1 I Q S , , , ,

27 V-I IS series triple reduction S V Z i i Size 1 1 S V Z

28 29 V-I IS V series triple reduction S Q Q 1 I Sp I Sp i -45 i Size 1 1 I Q S Sp , , , ,

29 30 V-I IS series quadruple reduction S 1 I Q Q 1 1 I 1 i -2 i Size 1 1 I Q S , , , ,

30 31 V-I IS series quadruple reduction S V Z i -2 i Size 1 1 S V Z

31 32 V-I IS V series quadruple reduction S Q 1 1 Q 1 1 I Sp I Sp i -2 i Size 1 1 I Q S Sp , , , ,

32 33 S - I - I - V I SII V reather plug evel plug rain plug

33 34 Series - elical units - ctual ratios Size i

34 35 V Series - elical units - ctual ratios V V V Size i , ,4

35 36 otes

36 IZ IS ear units are available as standard assemblies with I metric 5 flanged motors as well as -face motors. ormally gearbox and motor shaft are connected by flexible couplings, but other more compact and special solutions can be supplied.

37 38 IZ IS elical unit series 22 30' ype 1 Sp 22 30' ype 2 Sp S S nit otor Size I S Sp nit otor Size I ll dimensions refer to I frame size motors S Sp

38 39 IZ IS elical unit series 22 30' ype 1 Sp S 22 30' 2 Sp ype S nit otor Size I S Sp nit otor Size I ll dimensions refer to I frame size motors S Sp

39 IZ IS elical unit series ype 1 Sp 22 30' S nit otor Size I ll dimensions refer to I frame size motors S Sp nit otor Size I S Sp

40 41 IZ IS evel-helical units /V series Sp ' S V S Sp 2 nit otor Size I S Sp ll dimensions refer to I frame size motors