Eaton Airflex HEVC 5005, Инструкция по установке, эксплуатации и обслуживанию

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EATON HEVC 5005 Installation, Operation and Maintenance Manual E-CLCL-CC002-E2 May 2017 6
HEVC 5005
2.0 Installation
Warning
Only qualified personnel should install, adjust or
repair these units. Faulty workmanship will result in
exposure to hazardous conditions or personal injury.
Caution
Do not inflate the element without having a drum in
place. Inflation of the element without a drum in
place will result in permanent damage to the
element components.
2.1 Mounting arrangements
2.1 Airflex HEVC grinding mill clutch applications are
available in dual-wide mounting configuration. See
Figure 3. The clutch configuration is determined
by the motor horsepower and RPM, the allowable
motor overload (percent rated horsepower) for
mill starting, the inertia of the mill and the charge,
and the physical space available for the clutch. All
clutches can be supplied with our without an axial
locking device.
Figure 2
Release spring
Torque bar
Rim
Side plate
Side plate
Friction material contact with drum
Friction shoe assembly withdrawn
Contact with drum
Release spring
(Compressed)
Drum surface
Drum surface
Torque bar
Friction shoe assembly
Torque bar
Drum surface
Release spring
Axial locking assembly
Rotorseal
Spider
Element
Drum
Drum
hub
Figure 3
1.3 Clutch adjustment
1.3.1 Airflex HEVC clutches are completely self-adjusting
and automatically compensate for lining and drum
wear. Lubrication is not required. The torque
developed is dependent upon rotating speed and
applied air pressure. By limiting the applied pressure,
the element will act as a torque limiting device and
provide overload protection.
1.3.2 To achieve the desired mill acceleration time,
a flow control valve is installed in the clutch
air supply line and adjusted to restrict air flow
to the clutch, while allowing free flow away from
the clutch for rapid disengagement. By adjusting
the flow, the rate of engagement may be varied.
Note that the flow control valve does not regulate
air pressure the supply pressure must always
be adequate to transmit the maximum required
torque. Refer to the INSTALLATION section of
this manual for a recommended air piping
configuration and the OPERATION section
for flow control valve adjustment.