Regada MO 3, Инструкции по установке, обслуживанию и техническому обслуживанию, Страница: 10 / 56

8 MO 3, MO 3.3, MO 3.4, MO 3.5
2. Description, function and technical parameters
2.1 Description and function
Electric multi-turn actuators MO consist of these modules (Fig.1):
Module M 1 – electric-motor
Module M11 – countershaft transmission with rotary hold
Module M 3 – force transmission with additional gear box and manual control
Module M 4 – control box
Module M1 – electric-motor
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Three-phase asynchronous electric-motor
Module M11 – countershaft transmission with rotary hold
Countershaft transmission performs reduction of revolutions of electric - motor to specified transmission
value. Countershaft transmission consists of two or three pairs of spur meshing toothed wheels and is terminated
by bevel pinion, which meshes into bevel gear of transmission from module M3.
Rotary hold substitutes motor mechanic brake and allows manual control of EA.
Modul M 3 – force transmission with manual control (Fig. 2)
The set is stored in box (1). Gears are centrally positioned on output shaft (3) and creates independent
assembly unit. Wheel rim (44) with inner gearing provides transfer between electric motor pinion and output
shaft. In upper part is located the warm (2) for torque sensing and manual control, which is used for positioning
of controlled equipment during electric power breakdown. Positioning is executed manually by hand wheel (4).
The warm is suspended and a thrust created by output shaft torque axially shifts the warm against spring
tension. The warm movement is transferred by the fork with pin through a shaft (45) joined to control box.
Movement of the warm is proportional to the load torque. The fork meshes into circumferential notch, allowing
rotary motion of manual wheel, therefore manual control in every operating status. On the box (1), (across to
manual wheel) are three bosses with threaded openings allowing assembly of electric actuator on the wall, or
supporting construction.
Fig.1