Question

Driver Type: Steam Turbine

Input Power: 25 hp

Use multi strand: 2

Driven Machine: Centrifugal Pump

Input Speed: 1900 rpm

Nominal output Speed: varies between 770 and 780 rpm

Specify the chain number and chain size, the sizes and number of teeth on each sprockets, The number of chain pitches, maximum center distance, chain length, Angles of wrap, Sprockets diameter, Type of lubrication

Answer 1

* Solution = 2 input speed = 19008 Am (we known standeld keth value for i=8-2 foram design PAGE Considering the conditions with peremeters from the Question Here Inpol powel = ashp Multistrand Dut put Speed - 770,7 808pm * Trasmission Ratio (i)= Input sipfed Outputspeed ->ie 1800 772 book] 1900 760 in = 2.46,2.43 Standeld value for i design dado book is 2.25 of No. of teeth of doivel sprocket. Z,= 27 teeth. 72a1Z (27) (2.25) = 60.75 261 Pitch 2, = 27., N, = shoorem is 7.,N= l Courpm is 12.7mm. from doo fars

*CHAIN LENGTH :-) PAGE 2 Chein section Here No. of stond =2 ie Duplex "DR. From design book for pätch 212.76mm deta D2ho, 0 SA-2 CHAIN NO cate distance Q=3mm xpith. Initially ass ummed ie= 304 12:52 Q = 377.1 mm No.of links given by formule dp = 2ap + 2,+ Z2 2 3571 ap= 0%; 4,92 12:52 .: 9p=30 02= 2670) +(24+51) 2 = 6ores les con

PAGE-3 Chain length (L) = lp xi L 101x12.59 E 1307.28mm Marinum cate distore e +502 +8m at 4 Z+Zz es Sp - [z , tzz 22] ; e-phaty 88,2 M. 60 2 TI 28.961 Now 60+ 1602+(8X196-34 ar x 12.54 4 = 60+ 71.90 X 12.56 ų Q =41448mm Diemete of sprocket Ped of smelled sprockedd .. sin (1909 dolges spooketa Singer) 12.57 dia sin (1882) 12.57 0 364 34,25mm.

PAGE 4 د رح is mm. 12:57 12.57 66.15m 0.190 sih do = dito.&do Outsick diameter dar - - de to 8dr Polles die die & O8A-2 D230 Chain. ( Design Book hos 7-21) do = 7.95 doi= 34. 25 + +77.95408) doi= 60 61 mm doy = 66.15+(9.95 80.8) ..d2 = 72.15 m Type of lubrication is for Cheir closives oil roo) Grease 코 PLEASE UPVOTE Its vely mich necessay for met