Question

A 24 inch diameter pulley driven by a horizontal belt transmits power (20 marks) (a) through a solid shaft to a 10 inch diameter pinion which drives a mating gear. The pulley weighs 300 lb to provide some fly wheel effect. The arrangement of elements, the belt tensions, and the components of the gear reactions on the pinion are as indicated in figure-3. Determine the necessary shaft diameter using ASME Code stress value for commercial shafting and shock fatigue factors of Kp 2 and Ki 1.5 OUEATION 4. 100.

Answer 1

Q. A 24 inh dvcumetes pulley dinen by a humgental betl heumts Paues Hoyh a soid sht to a lo ineh duametes piwtm wuh dmiue pulley waighu 8o 1b to prouude tmme yoheel thect. the atanpment ofelumeut, te belt teunims, adl tue Compenents eh ta gear Aeouhenu on H pinton as indi'oted 2. Determune Hia W ASME Code nlienary Ahatt dicumetes g hren ralua ter Commesual sthothn and hock bah'gte fattus of 2 and Souhon Is" io" 96c0 1bin Pinim Patley Dp Drametes e Puly 2 4ineh Diamete af pinion oineh weigud puuley 30o Jb Neet tor quue due to paly *thmo 4plb + MxO ludb 2 oDbX/ op + (4o0Jb) De F12e0 x 121+ (4-00 x 12.) 142 0kb 12-eplb 96 1b.inch 960 1b,inth

ach'n both in honzuntal aud veshal ptane. 3147. 056(1b.inu) ZsHungenheu plame 1 RAH 826 7.641Ahinth) ICoolb K2 T Rav RAY 142010 RBH MA 0 and Hoaut -70 A 9)- l1600 x 24)+ (ReH X 34) o amis ReH +63 co + 3 8400 1314-,705 1b 2 4 RAH 23 D-1814.10S 98 S.29 4 b tMonueut at e ndes AC Cuaue o ho here in Humizantal plo 867.6460b.inch) (985.294) x (9 f18161646 16rinun) +(48s.244 -1) x 1s] Marment at D 13147 0s ubinun) Nerere ,oS6 Jhinch)-(-1314.706t 12/4.7os)x 10 Manneut at & inn) 4 YID

&ummib on veahLod dureehem Aouhon in l1-wh Ray t Rey t +19201b-3cu Jb Ray Rey I62 01b 2 MA0 tor veshra (41920 4b )x/9 inth) -3 Jb 24 incn) +R By (94inen) -0 plane 296. 410Jb RAY 13 2-3.524Jb 11q161 (Jh. Inen) Mameut at c (132.2. 524 X q) 1 Monnat ad D !911.16 2964.696(0b. inch) 1 Manmen at B= 2964.696 ( Jb.inuh) - 9964-71 binth) -6 000.014 (db.inan) Resuteut act + (8861.6402 MY My 1 4 850.09 1b.in uh eat Rerultemt Bendrnp menneut +(13141.os)2 12411, 13 4 Jb. inth 1

So, the Conthca scehim is beuding whese 14 8s0. 09 Jbin and momut s Commesccal steel sthatt she au hen tor alloueable - 40 m Pa 2 S801. SI t lo ineh 40 MPa= For dumgn Code Ame Cm x Renulteut Momaus) (Ct x Peulkut fonton] Cax o1) (1.5 A 961 2 X1485o.0q 16X CdxP 3.011 inch 3.071 in ch do