Working Principle :- The Pneuflex units are used as both
clutches and brakes in general power transmission applications on all types
of machinery. The primary feature of this design is the pneuflex torsional
resilient principle made possible by the transmission of the power through
sidewalls of the flexible rubber and cord actuating tube. These expand
radially inwards when pressurized. This constricting tube forces friction
shoes against cylindrical drums. More is the pressure more is the torque
transmitted. The flexibility also permits minor shaft misalignments.
Features :-
- Airtube applies force at maximum radius from axis.
- Uniform contact velocity.
- Self adjustment.
- No lubrication.
- Centrifugal force assists clutch disengagement.
- Operates in any plane.
- Full 360 friction surface.
Working Principle :-The Pneuflex units are designed and built for severe clutching and braking applications on heavy duty equipment. They are unmatched for high stating loads and sustained slippage where heat generated tends to shorten the operating life of conventional clutches. Their high torque ratings permit use of small diameter compact units. Ventilated construction permits passage of cooling air to rapidly dissipate heat from the friction shoes. Torque is transmitted from the side plates of the elements through torque bars to the friction shoes. Pressurizing the actuating tube forces the friction shoes to engage around a cylindrical drum. Leaf springs in the torque bar cavities of the backing plates retract the friction shoes when the actuating tube pressure is released.
Features :-
- Airtube applies force at maximum radius from axis.
- Uniform contact velocity.
- Self adjustment.
- No lubrication.
- Centrifugal force assists clutch disengagement.
- Operates in any plane.
- Full 360 friction surface.
The PNEUTORQ Clutch / Brake combination unit consists of an air
actuated disc clutch and spring applied Disc Brake. Its compact design
combined with its high thermal capacity and low air consumption makes it
ideal for high speed, high cyclic, heavy-duty industrial applications. When
cylinder is pressurized, the piston clamps the clutch disc to the hub, which
transmits the torque to shaft. When cylinder exhausts, the springs moves the
piston in the opposite direction clamping the brake disc & stopping the
shaft.
Overlap between Clutch and Brake is completely eliminated. Pneutorq offers
a wide range of Pneumatic Clutch/Brake units for use in Power presses,
Shearing machines, Wood working machines & Special Purpose machines with
the large range of sizes and capacities of Clutch Torque 260 NM to 26000 NM
and Brake Torque from 180 NM to 18000 NM are available in numerous models.
Being a compact unit it is mainly used in machine tool and where
dimensions are critical. These are normally off type units. Frequent
adjustment is required as clutch plates wear. Wearing parts are replaceable.
