Exlar EL120, Installation And Service Manual

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Curtiss-Wright | EL120 Rev. G PN60914 10/10/19
45
Romanian
Trebuie să aveţi grijă să nu depăşiţi limitele fizice de cursă ale actuatorului. Dacă acest
lucru se întâmplă, actuatorul va suferi o defectare internă de capăt. Defectările de capăt pot
deteriora fizic şurubul cu role şi componentele interne ale actuatorului.
Slovak
Dbajte na to, aby sa neprekračovali fyzické limity dráhy pohybu spúšťača. V opačnom
prípade bude spúšťač vnútorne zlyhať na konci dráhy pohybu. Zlyhania na konci dráhy
pohybu môžu fyzicky poškodiť valcovú skrutku a vnútorné súčasti spúšťača.
Slovenian
Pazite, da ne prekoračite fizičnih potovalnih omejitev sprožila, ker se lahko drugače
sprožilo interno zruši. Pri tem lahko pride do fizičnih poškodb valjčnega vijaka in notranjih
komponent sprožila.
Spanish
Se debe tener cuidado de no sobrepasar los límites de recorrido físico del accionador. Si lo
hace, el accionador podría sufrir una colisión interna. Las colisiones internas podrían dañar
físicamente el tornillo rodante y los componentes internos del accionador.
Swedish
Var noga med att inte överskrida manöverdonets fysiska rörelsegräns. Manöverdonet
kommer i så fall att gå sönder i ändläget. Detta kan fysiskt skada rullskruven och
manöverdonets interna komponenter.
General Operation
The EL120 series of actuators function in the same manner as a brushless servomotor.
The EL120 actuator must be connected to a servo drive controller to properly commutate
the motor and control the torque, speed and position of the actuator. This rotary motion is
translated into linear motion by the internal planetary roller screw mechanism of the EL
series linear actuator. The rotary motion of the motor and the linear motion of the actuator
correspond to the following relationships:
𝐋𝐢𝐧𝐞𝐚𝐫 𝐃𝐢𝐬𝐭𝐚𝐧𝐜𝐞 𝐓𝐫𝐚𝐯𝐞𝐥𝐞𝐝 [𝐢𝐧] = Motor Revolutions × Roller Screw Lead [in/rev]
𝐋𝐢𝐧𝐞𝐚𝐫 𝐒𝐩𝐞𝐞𝐝 [𝐢𝐧/𝐬𝐞𝐜] =
Motor Speed [RPM]
60
× Roller Screw Lead [in/rev]
𝐋𝐢𝐧𝐞𝐚𝐫 𝐅𝐨𝐫𝐜𝐞 [𝐥𝐛𝐟] =
Motor Torque [in − lbf] × 2π × Efficieny
Roller Screw Lead [in/rev]
All of the above relationships require proper anti-rotation of the EL series actuator rod.
The unique design of the EL series linear actuators allows the extending rod to rotate. This
simplifies the setup of the actuator by allowing the user to rotate the rod and thread it in and
out of the actuator for mechanical attachment or system testing.
This feature also requires that the rod be kept from rotating when used in its dedicated
application to insure proper linear motion. In most applications, such as those where the
load is coupled to linear bearings or some other support device, the load cannot rotate,
providing anti-rotation for the extending rod of the actuator.
For applications in which the load is free to rotate, Exlar offers anti-rotation systems.
Contact Exlar engineering if the application requires a dedicated anti-rotation system.