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Fakulta strojnho inenrstv VUT v Brnstav konstruovn
KONSTRUOVN STROJmechanismy
Pednka 4
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Klikov mechanismus
Engineers need to be continually reminded that nearly all
engineering
failures results from faulty judgments rather than faulty
calculations.
EUGENE S. FERGUSON
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Obsah
Klikov mechanismus
Zsady uspodn vlc. Vcevlcov motory adov (dvou a estivlcov
motory). Vcevlcov motory do V Klikov hdel a modln vlastnosti Klikov
hdele vcevlcovch motor do V Software pro vpoet motor
Pednka 4 Klikov mechanismus
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Zsady uspodn vlc1. Zehy rovnomrn
4 taktn
i poet vlc
2 taktn
2. Zehy n v sousednch vlcch
3. Uspodat kliku, tak aby byly vyven odstediv sly a momenty
odstedivch sil
i720
i360
Pednka 4 Klikov mechanismus
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adov 2-vlec
22 rmF rr = = 0rM
)cos(2 2 rmF pI = = 0IM)2cos(2 2 rmF pII = = 0IIM
Pednka 4 Klikov mechanismus
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adov 2-vlec
0= rF = aFM rr 2
0)cos()cos( 22 =++= rmrmF ppI)2cos(2 2 rmF pII = = )cos(2 armM
pI
= 0IIMPednka 4 Klikov mechanismus
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2-vlec Boxer
0= rF = aFM rr
)cos(2 2 armM pI = = 0IF)2cos(2 2 armM pII = = 0IIF
Pednka 4 Klikov mechanismus
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adov 3-vlec
= 0IF0= rF = 0IIF = aFM rr 3
+= )120sin(3 2 armM pI
+= )2sin(
23)2cos(
232 armM pII
Pednka 4 Klikov mechanismus
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adov 4-vlec
Zapalovn1-4-3-21-3-4-2
= 0IF0= rF = 0IM = 0IIM)2cos(4 2 rmF pII =0= rM
Pednka 4 Klikov mechanismus
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adov dvoutaktn 4-vlec
= 0IF0= rF = 0IIF
( ) += )sin()cos(32 armM pI = 0IIM
Pednka 4 Klikov mechanismus
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adov 5-vlec
Zapalovn1-3-5-2-4 0= rF
12 variant klikovch hdel2 = ramKM rIr
= 0IF = 0IIF
+= )sin(2 IpII armKM ( ) += IIpIIII armKM )2sin(2
Pednka 4 Klikov mechanismus
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adov 6-vlec
Zapalovn1-5-3-6-2-4
Pozor na kvn ojnic
0= rF0= rM
= 0IF = 0IM = 0IIF = 0IIM
Pednka 4 Klikov mechanismus
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adov 6-vlec
Zapalovn1-5-3-6-2-4 0= rF
0= rM = 0IF = 0IIF
( ))sin(3)cos(32 2 = armM pI = 0IIM
Pednka 4 Klikov mechanismus
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Vce vlcov motory adov poad zapalovn
7 vlc 1-3-5-7-6-4-2 102.8
8 vlc 1-3-2-5-8-6-7-4 90
9 vlc 1-3-5-7-8-6-4-2 80
10 vlc 1-3-5-7-9-10-8-6-4-2 721-7-2-6-3-10-4-9-5-8
11 vlc 1-9-2-10-3-11-8-5-6-7-4 65-51-3-5-7-9-11-10-8-6-4-2
12 vlc 1-4-8-3-7-2-12-9-5-10-6-11
601-3-5-7-9-11-12-10-8-6-4-2
Pednka 4 Klikov mechanismus
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Vidlicov motory
Pednka 4 Klikov mechanismus
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Vidlicov motory
Pednka 4 Klikov mechanismus
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6 vlc do VZapalovn1L-1P-2L-2P-3L-3P
0= rF0= rM
= 0IF = 0IM
= )2sin(23)2cos(232 2 armM pII = 0IIF
Pednka 4 Klikov mechanismus
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8 vlc do VZapalovn1L-1P-4L-4P-2P-3L-3P-2L
0= rF0 rM
= 0IF = 0IM = 0IIF = 0IIM
Pednka 4 Klikov mechanismus
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8 vlc do VZapalovn1L-4P-2L-3P-4L-1P-3L-2P
0= rF0= rM
= 0IF = 0IM = 0IIM)902sin(24 2 = rmF pII
Pednka 4 Klikov mechanismus
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10 vlc do V
0= rF2449.0 ramM rr =
= 0IF 2449.0 ramM pI =22980.4 ramM pII = = 0IIF
Pednka 4 Klikov mechanismus
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Klikov hdel a modln vlastnosti
Pednka 4 Klikov mechanismus
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Software pro vpoet motor
Pednka 4 Klikov mechanismus
