Regada MO 3, Инструкции по установке, обслуживанию и техническому обслуживанию, Страница: 13 / 56

MO 3, MO 3.3, MO 3.4, MO 3.5 11
Torque unit (Fig. 4 and 5)
is composed of three
functional sub-units:
•
torque disk (Fig. 4)
•
torque unit (Fig. 5)
•
locking mechanism (82) (Fig. 5)
Torque disk (Fig. 4) is assembled on torque shaft
(45) discharged from power transmission (Fig.2). Steer
angle of torque disk is proportional to torque moment of
output shaft (3) of electric actuator. Its magnitude can be
adjusted by segments (17) and by shifting of backstops
(18). Achieved torque moment value is from torque disk
transferred on torque unit (9) by means of torque lever
(42).
Remark:
The gauge marks on the scales do not indicate
direct value switching – off torque; they are used only for
more detailed orientation during adjusting its magnitude
within marked MIN. and MAX. disconnecting value for
given make without testing device for thrust measurement.
Torque unit
(Fig.5 ) consists of a carrier, on which
are displaced switches S1 (20) and S2 (21). On
the shaft (23) are mounted disconnecting levers
(24), keeping switches pressed by spring
tensions until a moment when the shaft is turned
out of the mesh of torque disconnection.
Locking mechanism (82) (Fig.5) provides
locking of torque disconnection usually to 1 or 2
turns after reversing of electric actuator. After
elapsing of adjusted revolution will torque unit
acquire its original function.
Transmitter unit
EA can involve also a position transmitter and output signal of which depends on the customer’s
specification. This transmitter provides for continuous transfer of output member position information, eventually,
in the variant with regulator as a feedback for controller.
Heating resistor with thermal switch
EA is equipped with a heating resistor having a built-in thermal switch of a total power of about 35W. It
is intended to prevent water vapour condensation and provide for the proper ambient for the proper function of
built-in electric control parts of EA in the case of EA low temperatures.
Fig.5
Fig.4
The limit of
min. torque
The limit of
max. torque
The limit of
min. torque