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Panasonic EY7550 Manual

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EY7551
M10 x 35 mm M12, M14, M16 x 45 mm
Standardbolt
196.0
（2000）
147.0
（1500）
98.0
（1000）
49.0
（500）
0.50.0 1.0 1.5 2.0 2.5 3.0
M12
M14
M16
M10
N s m
(kgf-cm)
Stramningsmoment
Stramningstid (sek.)
EY7551
M8, M10 x 35 mm. M12 x 45 mm
Bolt med stor trækstyrke
Stramningsmoment
Stramningstid (sek.)
Bolt
Møtrik
Skive
Stålplade,
tykkelse 10 mm
Skive
Fjederskive
Stramningsbetingelser
• De følgende bolte anvendes.
Standardbolte: Styrketype 4,8
Type med stor trækstyrke 12,9
4.8
Forklaring af styrketype
Bolttrækgrænse
(80% af trækstyrke)
32 kgf/mm
2
(45000 psi)
Bolttrækstyrke
40 kgf/mm
2
(56000 psi)
2) Stramningstid
Længere stramningstid resulterer i et
højere stramningsmoment. Overdreven
stramning er imidlertid ikke tjenligt og for-
korter værktøjets levetid.
3) Forskellig boltdiameter
Størrelsen af boltdiameteren påvirker
stramningsmomentet.
Almindeligvis stiger stramningsmomentet,
når boltdiameteren bliver større.
4) Stramningsbetingelser
Stramningsmomentet vil være forskelligt,
selv med den samme bolt, alt efter klassi-
fikation, længde og momentkoefficient (den
faste koefficient angives af fabrikanten ved
fremstillingen).
Stramningsmomentet vil være forskelligt,
selv med det samme boltningsmateriale
(dvs. stål), alt efter overfladebeskaffen-
heden.
Momentet reduceres drastisk, når bolten og
møtrikken begynder at rotere sammen.
5) Borepatrons spillerum
Drejningsmomentet mindskes, så snart
en sekskant-konfiguration af en borepa-
tron med forkert størrelse anvendes til at
stramme en bolt.
6) Omskifter (Kontroludløser for variabel
hastighed)
Momentet sænkes, hvis maskinen anven-
des, uden at afbryderen er trykket helt
ned.
7) Virkning af tilslutningsadapteren
Stramningsmomentet vil blive mindsket
via anvendelse af et universalled eller en
tilslutningsadapter.
EY7546_EY7547_EY7550_EY7551_EU.indb 80 2011-2-25 14:40:38
… 80 …


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