IIFILIP KLJAJICII, KRAGUJEVAC - YUGOSLAVIA

Izbor provera lanca

Karakteristike lancanog prenosa:Snaga: P[kl1-J ili obrtni moment: Mo[Nm]Broj obrta pogonskog lancanika: nl[min-I]Broj obrta gonjenog lancanika: n2[min-1]Pogonska masina:Radna masina:Osno rastojanje: A[mm]

Obimna sila:

1000 P 2000 M" [ ]1',,=--= d Nv 0

Sila u vucnom ogranku Janca:Fl=Fo+Fq+Fc

Obrtni moment:

Dijagramska snaga:

PJ)=poCL

CentrifugaJna sila:q'1)2

Fc=-g

g=9,81[mls2]

Sila zatezanja usled mase slobodnog ogranka:Fq=krqA

- masa 1 Em] lanca (tabele dimenzija lanaca)(Za horizontalne lancanike, kf =6; za lancanike

postavljene pod uglom od 40·, kf=4; za uglove veceod 40·, kf=2 i za vertikalne lancanike, kf=l)

Al = b2 X d2

b2 - sirina unutrasnjeg clanka (tabele dimenzijalanaca)

d2 - precnik osovinice (tabele dimenzija lanaca)

Stvarni dozvoljeni povrsinski pritisak:

po),Ps=-Cp

P - dozvoljeni povrsinski pritisak (tabela 7)A - faktor trenja (tabela 8)

(Racunski pritisak u zglobu mora biti manji odstvarnog dozvoljenog povrsinskog pritiska: pr > Ps)

Staticki stepen sigurnosti:Fp

Vs=-1'1

Fp - prekidna sila (tabele dimenzija lanaca)

Dinamicki stepen sigurnosti:

V Fp FpD=--=---~"o FI ~JFo+Fq+F)

(Stepeni sigurnosti moraju biti veti od 9)

Racunski pritisak u zglobu lanca:

1'1

Pr=­Al

0,584

(~+~+~+o....o)~ZI Z2 Z3 m

3

k=

Popravni koeficijent:CL=C 0 Cj . Co' C;1 0 Cp . CB

faktor broja zuba pogonskog lancanika: C (tabela 2)- nl Z2

faktor prenosnog odnosa: C (tabela 3); i=-=-n2 ZI

dn1)= _o_nozot

o 19100 - 60000 [mls]

Mo=_95_50_0_P [Nom]n

koeficijent udara: ~o (tabela 1)faktor udara: Cu (tabela 4)faktor osnog rastojanja: CA (tabela 5)faktor podmazivanja: Cp (tabela 6)

1

faktor broja lancanika: C/J=k

m - broj clanaka lanca(Za slucaj da se prenos snage vrsi samo preko dva

lancanika CB= I) PO ODREDIVANJU SNAGE PD, ZAODREDENI BROJ OBRTA POGONSKOG LANGANIKA,VR81 SE IZBOR LANCA IZ DIJAGRAMA (sl. 1 i 2)0

Podeoni precnlk lancanika:t t

do=--[mm]=--,

o (n) 0 C80)sm z Sin Tt[mm] - korak lanca

13 - broj zuba lancanikaBrzina lanca:

40

"FILIP KLJAJIC", KRAGUJEVAC - YUGOSLAVIA

Choice and check of chain

Chain gearing characteristic:Power: P[kHtJ or rotation: Mo[Nm]Revolutions of driving chain wheel: nl[min]Reyolutions of driven chain wheel: nz[min]Driving machine:Working machine:Distance on axle: A[mm]

Power of diagram:

Corrective coeHicient:CL=c. . C;· Cu· CA . Cp· CB

Number tooth of driving chain wheel factor: Cz

(table 2)

Driving relation factor: C; (table 3); i=~= Zznz ZI

Coefficient of stroke: ~u (table 1)Stroke factor: Cu (table 4)Distance on axle factor: CA (table 5)Lubricating factor: Cp (table 6)

. 1Number of cham wheel factor: CB=­

k

3

k=

m - number of chain links(In the case that driving power does through only

two chain wheel CB= 1)

AFTER DETERMINATION OF POWER PD. FOR DE­TERMINED NUMBER REVOLUTIONS OF DRIVINGCHAIN WHEEL, IT WORKS CHAIN CHOICE FROM DI­AGRAM (picture 1. and 2.).

Pitch line diameter of chain wheel:t t

do=--[mm]=--

. (rc) . (180')Sin - Sin -

t[mm] - pitch Z Z

Z - No. of teeth of sprocket

Speed of chain:do . N n· Z .tv=--"'--[m/s]19100 60000

Moment of rotation:

9550 P [ ]Mo- N·mn

Force of circumference:1000· P 2000· Mo

Fo= d [N]v 0

Force In drowing angle tee of chain:F1 =Fo+Fq+Fc

Tensile force with mass of free angle tee:Fq=KJ"q·A

- mass 1 em] chain (table of chain dimension)(For horizontal chain wheel, Kf=6 for chain wheel

placed on angle of 40·, Kf=4 and for angles largerthan 40·, Kf=2 and for vertical chain wheel, Kf= 1)

Centrifugal force:

Arithmetical pressure In link:FIp--

,- AlAI=bzxdz

bz - inner link track (table of chain dimension)dz - axle diameter (table of chain dimension)

Real allowed superficial pressure:p').P.=-Cp

P - allowed superficial pressure (table 7)). - friction factor (table 8)(Arithmetic pressure in link must be less than real

allowed superficial pressure: p, >P.)

Static degree of security:Fpv.=-F1

Fp - breaking load (table of chain dimension)

Dlnamlc degree of security:

V _~_ Fpv- -~". F1 ~JF.+Fq+F)

(Degrees of security must be larger than 9)

41

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TABELA 1: VREDNOSTI KOEFICIJENTA UDARA ~II

TABLE 1: VALUES OF STROKE COEFICIENT ~II

Po DIN-u 8195

,.. ,...

.' .

. .'T •• ' "", ..• • t

.,. ...

..strug, busilica (lathe, drilling machine)

1,4

glodalica (milling machine)

1,5

rendisaljka (slotting machine)

2,3

vertikalna rendisaljka (vertical slotting machine)

2

maSina za izvlaeenje (drawing machine)

1,82,82,52,2

presa (press)

hidraulicna (hydraulic press)1,8

ekscentricna (eccentric press)

2,5

kolenasta (knee press)

2

maSina za preradu drveta (wood converting machine)

1,84,543,732,52,53,5 3,5

razboj (tekstilni) - (loom textile)

2

maSina za pletenje

kruzna (circular)1,5

(knitting machine)sa povra!. kre!. (with back stroke)

2

predilica (spinning machine) -

1,5

klipni kompresor

jednostepeni (single stage)2,554,543,5

piston compressor

dvostepeni (two stage)24,543,53

centrifugalni kompresor

jednostepeni (single stage)1,643,232,52

centrifugal compressor

dvostepeni (two stage)1,332,72,521,6

duvaljka (blower)

1,532,72,52

ventilator (fan)

2,53,7 3,5

mlin(mill)

1,8

klipna pumpa

1 cilindar (1. cylinder)2543,532,62,53,5

(plunger pump)

2 cilindra (2. cylinder)1,843,532,72,32,22,7

centrifugalna pumpa (centrifugal pump)

1,532,82,52,22 2,5

valjaonica (tube mill)

preko prenos. (by gearing)2,5

direktno (direct)

3

kompresivni valjak (compressing cylinder roll)

2

mlinovi cekieari (mill hammers)

2,554,543,5

maSina za glaeanje vune

preko prenos. (by gearing)2,5

ili hartijeglazing machine for wool

direktno (direct)3

and paper maSina za povrs. obradu celuloze

1,82,23 3,5

wood pulp surface finishing machine vibraciono silo (vibration sieve)

243,53,22,8 4

nabijac (rammer)

2543,53,2

meSalica (stirrer)

1,743,232,52

bager (dredging machine)

354,54 5

kopac (miner)

54,54

transporter (rastresit materijal)

1,532,82,52,22 2,8

conveyer (loose material) transporter (komadni materijal)

243,532,72

conveyer (piece material) dlzalica (elevator)

2,5543,532,6

viljuskara (fork lift truck)

34,53,5

generator

veliki (big) 12 1,21,511,8

(generator)

mali (small) 1,52,8 1,72,51,52

prenosnik, transmisija (belt drive, transmission)

1,52,3222,51,52,5

44

"FILIP KLJAJIC", KRAGUJEVAC - YUGOSLAVIA

TABELA 2: FAKTOR BROJA ZUBA POGONSKOG LANtANIKATABLE 2: FACTOR OF COG NUMBER DRIVING CHAIN WHEEL

Zl1113151719212325

Cz

1,721,451,272,121,00,910,830,76

TABELA 3: FAKTOR PRENOSNOG ODNOSA:TABLE 3: FACTOR OF TRANSPORTABLE RELATION

TABELA 4: FAKTOR UDARATABLE 4: STROKE FACTOR

I c, I 1~: I ,:~ I ::: I :~: I :: I I;: I : 1,,:, I~

TABELA 5: FAKTOR OSNOG RASTOJANJATABLE 5: DISTANCE ON AXLE FACTOR

Alt20406080160

C"

1,181,00,910,870,69

TABELA 6: FAKTOR PODMAZIVANJATABLE 6: LUBRICATING FACTOR

4

1,72

Brzlna lanca (m/s) (Speed of chain Im/sl)<44-7>7

p

I Besprekorno (Faultless) 1,01,01,0u 0 b

Nepotpuno sa elstlm maz. (Incoplete with clean grease) 1,42,5d, -

CpI

m

c

Nepotpuno sa zaprlj. maz. (Incomplete with Impure grease) 2,54,0. -I a Iz. ~

Bez podmazlvan)a (Without lubricating) 5,0--

45

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OZ

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23

0,1

0,2

0,4

o,S

0,6

0,8

1,0

1,5

2,0

2,S

3,0

4,0

S,o

6,0

7,0

8,0

10,0

12,0

30,2

29,4

28,3

28,0

27,1

2S,7

2S,1

23,0

21,9

20,9

19,8

17,6

16,9

30,8

30,0

28,9

28,S

27,6

26,2

25,S

23,4

22,3

21,3

20,2

18,S

1S,6

12,1

31,3

30,4

29,3

28,9

28,0

26,6

2S,9

23,S

22,7

21,6

20,S

18,8

17,4

31,6

30,7

29,6

29,2

28,3

26,8

2S,2

24,0

22,9

21,8

20,7

18,9

17,6

16,S

31,8

31,0

29,8

29,S

28,6

27,1

26,4

24,2

23,1

22,0

21,9

19,1

17,8

32,1

31,3

30,1

29,7

28,8

27,3

26,6

24,4

23,3

22,2

21,0

19,3

18,0

16,9

8,9

32,6

31,7

30,S

30,1

29,2

27,7

27,0

24,7

23,6

22,S

21,3

19,6

18,2

17,1

16,0

14,8

12,3

32,9

32,0

30,8

30,3

29,S

27,9

27,2

25,0

23,8

22,7

21,S

19,7

18,4

17,2

16,1

1S,0

13,4

33,3

32,4

32,2

30,S

29,6

28,1

27,6

2S,3

24,1

23,0

21,8

20,0

18,6

17,4

16,3

1S,2

13,6

33,4

32,S

31,3

30,9

30,0

28,4

27,7

2S,4

24,2

23,1

21,9

20,1

18,7

,33,

9

32,9

31,7

31,3

30,4

28,8

28,1

2S,7

24,5

23,4

22,2

20,3

18,9

34,2

33,3

32,0

31,6

30,7

29,0

28,3

2S,9

24,8

23,6

22,4

20,S

19,1

17,9

16,7

1S,6

13,9

34,3

33,4

32,1

31,8

30,8

29,1

28,4

26,1

24,0

23,7

22,S

20,6

19,2

18,0

16,8

1S,7

14,0

34,6

33,7

32,4

32,0

31,1

29,4

28,7

26,3

25,1

23,9

22,7

20,8

19,3

18,2

17,0

1S,8

14,1

34,9

33,9

32,7

32,3

31,3

29,6

28,9

26,S

2S,3

24,1

22,9

20,1

19,5

18,4

17,1

16,0

14,2

12,8

"FILIP KLJAJIC", KRAGUJEV AC - YUGOSLAVIA

TABELA 8: FAKTOR TRENJA A­

TABLE 8: FRICTION FACTOR A-

A = 601 A=801

2

3

4

JUS M.C1.821

DIN 8188, 73232

DIN 8181

JUS M.C1.821

DIN 8188, 73232

DIN 8181

JUS M.C1.821

DIN 8188, 73232

DIN 8181

JUS M.C1.821

DIN 8188, 73232

DIN 8181

0,7010,7910,8510,9210,9910,821 0,9311,0011,0911,161 0,9011,0211,1011,2011,281 0,9411,0611,1511,2511,3411,1911,3511,451 1,581 1,68

0,5610,6310,6810,7410,7910,6610,7410,8010,8710,931 0,721 0,821 0,881 0,9611,0310,7510,8510,9211,0011,0710,9511,0811,161 1,261 1,35

0,5110,5710,6210,6710,7210,6010,6810,7310,7910,851 0,661 0,741 0,801 0,871 0,931 0,691 0,781 0,841 0,911 0,981 0,871 0,9911,061 1,151 1,23

0,4110,4610,5010,5410,5810,4810,5410,5810,6310,681 0,531 0,591 0,641 0,701 0,741 0,551 0,621 0,671 0,731 0,781 0,701 0,791 0,851 1,931 0,99

0,4410,4910,5310,5810,6210,5210,5910,6310,6910,731 0,571 0,641 0,691 0,751 0,801 0,591 0,671 0,721 0,781 0,841 0,751 0,851 0,911 0,991 1,06

0,3210,3610,39/0,4210,4610,3810,4310,4610,5010,541 0,421 0,471 0,511 0,551 0,591 0,441 0,501 0,541 0,581 0,621 0,5510,6210,671 0,731 0,78

47