Lp. |
Q[N] |
H[mm] |
Stal |
Re[Mpa] |
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RH[Mpa] |
R[Mpa]- do wzoru Tetmajera |
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11 |
15500 |
545 |
C35 |
320 |
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240 |
0.861303699086386 |
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1. Średnica rdzenia śruby ze względu na wyboczenie |
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2. Warunek na samohamowność gwintu |
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Xw |
E[Mpa] |
λgr |
s |
l[mm] |
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γ<ρ' |
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cos(30°/2) |
μ |
Nśr[mm] |
kc |
ks |
dgł[mm] |
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6 |
210000 |
100 |
2 |
654 |
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0.966 |
0.15 |
14.6666666666667 |
155 |
100 |
44 |
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0.014666666666667 |
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ls[mm] |
d1[mm] |
imin |
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γ[rad] |
ρ'[rad] |
σc[Mpa] |
wo |
α |
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1308 |
35.3767182604486 |
0.009 |
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0.05498893672454 |
0.154049234153671 |
15.2355115200126 |
0.00001 |
1.55 |
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3.1506339942281 |
8.82637095422792 |
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Dobieram gwint Tr 44x7: |
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P |
d1 |
D1 |
d2=D2 |
d |
D |
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Mt1[Nm] |
Mt2[Nm] |
Ms[Nm] |
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7 |
36 |
37 |
40.5 |
44 |
45 |
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66.5845402468155 |
34.1 |
100.684540246816 |
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0.036 |
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0.0405 |
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λ |
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ts[Mpa] |
σz[Mpa] |
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145.333333333333 |
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10.790095619729 |
22.6237633704937 |
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λ>λgr- wzór Eulera |
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σz ≤ kc |
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Rw |
kw |
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98.0275439777796 |
16.3379239962966 |
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3.Minimalna średnica części współpracującej z koroną ze |
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4. Obliczenia wymiarów nakrętki |
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względu na nacisk |
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a) Wysokość nakrętki |
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c) Naprężenia ścinające |
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ko[Mpa] |
n |
H |
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h |
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ktj[Mpa] |
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x |
|
ko |
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12 |
2.90200219428811 |
35 |
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3.48240263314573 |
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35 |
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11.1088992844522 |
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160 |
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5 |
43 |
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6 |
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11.1 |
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b) Naprężenia rozciągające |
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d) Szerokość kołnierza ze względu na nacisk |
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dgł≥x |
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Dzew |
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krj[MPa] |
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Dkoł |
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ko[Mpa] |
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48.8262639700353 |
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55 |
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55.3547579397617 |
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35 |
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50 |
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60 |
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5. Obliczenia wymiarów rury ze względu na wyboczenie |
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6. Obliczenie pokrętaka |
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Lr |
Ls |
λ |
Rw |
kw |
σw |
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a) długość prętu |
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b) Naprężenia zginające |
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638 |
1280 |
65.5548825256427 |
263.53733718749 |
43.9228895312484 |
17.9502026635785 |
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Pr[N] |
Lpok |
Lpok.całk. |
|
dp |
|
kgj[Mpa] |
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|
640 |
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250 |
0.402738160987262 |
547.738160987262 |
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0.021730065756061 |
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100 |
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σw ≤ kw |
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402.738160987262 |
550 |
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21.7300657560612 |
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30 |
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