OMA 511 - LIFT UNITS (Fig.6); TRANSMISSION UNIT (Fig.6); CONTROL BOX (Fig.8); HYDRAULIC POWER UNIT (Fig.8)

GRUPPIDISOLLEVAMENTO(Fig.6)
Ciascunoècostituitoda:
·
uncarrello(1)inlamieradiacciaiosaldata,collegatonellaparte
inferiore,medianteflangeeperni,aibraccidisollevamento.
Alcentro,ilcarrelloècollegatoadunacatena(2)chericeveilmo
-
vimentodalcilindroidraulico(6)epermetteilsollevamento.
Alcarrellodellacolonnalatocomandoècollegatalafune(7)che,
medianteunsistemadipulegge(8),trasmetteilmovimentoalcar
-
rellodellacolonnalatoopposto.
Icarrellisonodotatidirullidiscorrimentoepattinidiguida.
·
Duebraccitelescopicidicuiunolungo(3)eunocorto(4),co
-
struitiintubolarediacciaioerecantiadunaestremitàilpiattello
(5)regolabileinaltezzaperlapresadellamacchinaedallaparte
oppostailforodicollegamentoconilcarrello
Fig.6 Gruppodisollevamento
GRUPPODITRASMISSIONE(Fig.6)
Latrasmissionevienefornitadallacentralinaidraulicacheinvia
oliosottopressionealcilindro(6).Questomovimentaunsistema
formatodaunacatena(2)edaunafune(7)chescorresupulegge
(8)emandainmovimentosincronoilcarrellodellacolonnalibera.
QUADRODICOMANDO(Fig.8)
Sulpannellodelquadroelettricodicomandosonoinstallati:
L’interrutoregenerale(11)-Ilpulsantedisalita(12)-Ilpulsantedi
stazionamento(13)-Ilpulsantedidiscesa(14)
Fig.7 Quadrodicomando
Fig.7 Controlbox
CENTRALINAIDRAULICA(Fig.8)
Lacentralinaidraulicaècompostadaunmotoreelettrico(15),una
pompaidraulicaadingranaggi(16),un’elettrovalvoladidiscesa
(17)dotatadiundispositivodiscaricomanualedell’olio(vedicap.
UsoeManutenzione),unavalvoladimassimapressione(18),un
serbatoioolio(19),iltubodimandataerecupero(20)olio
N.B.:iltubodimandataoliopuòtrovarsiinpressione.
LIFTUNITS(Fig.6)
Eachunitconsistsof:
·
onecarriage(1)builtwithweldedsteelplate,connectedatthe
bottomtotheliftarmsbymeansofflangesandpins.Inthe
middle,thecarriageisconnectedtoachain(2)thatreceivesthe
movementfromthehydrauliccylinder(6)andperformsthelifting
operation.Acable(7)isconnectedtothecarriageofthecom
-
mandsidepost.Throughasystemofpulleys(8)thiscable
transmitsthemovementtothecarriageofthepostontheoppo
-
siteside.
Thecarriagesareequippedwithslidingrollersandguiderunners.
·
Twotelescopicarms,onelong(3)andoneshort(4),builtwith
tubularsteelwithapad(5)ateachendthatcanbeheightadju
-
stedtoholdthecarandontheoppositesidethecarriagecon
-
nectionhole.
Fig.6 Liftunit
TRANSMISSIONUNIT(Fig.6)
Transmissionissuppliedbythehydraulicpowerunitthatsendsoil
underpressuretothecylinder(6).Thismovesasystemconsisting
ofachain(2)andacable(7)thatrunsonpulleys(8)andtimesthe
movementofthecarriageonthefreepost.
CONTROLBOX(Fig.8)
Thepanelthathousestheelectriccontrolboxcontainsthefol
-
lowing:
Mainswitch(11)-Uppushbutton(12)-Parkingpushbutton(13)-
Downpushbutton(14)
Fig.8 Centralinaidraulica
Fig.8 Hydraulicpowerunit
HYDRAULICPOWERUNIT(Fig.8)
Thehydraulicpowerunitconsistsofanelectricmotor(15),agea
-
redhydraulicpump(16),downelectro-valve(17)equippedwitha
manualoildrainvalve(seetheUseandMaintenancechapter),a
maximumpressurevalve(18),oilreservoir(19)aswellasanoil
deliveryandreturnpipe(20).
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