Adapter
flanges / external clamping elements are used to connect disc-shaped
attachments such as brake discs, pulleys and belt pulleys securely and
without backlash by friction. Connection to cardan shafts is also
possible a possible option.
External clamping elements of "AF-12",
"AF-22" and "AF-23" series consist of a conical pressure ring and a
conical inner ring. The mode of operation is comparable to the 2-part
shrink disc (displacement-controlled). That means, by tightening the
screws, the pressure ring is pulled axially onto the inner ring. The use
of tapered surfaces reduces the inner diameter of the inner part,
applying radial pressure to the shaft.
Compared to 2-part shrink discs (path-controlled), mounting flanges of the "AFS", "AF-12", "AF-22" as well as "AF-23" series clamp directly onto the shaft. The clamping force applied by the outer clamping element creates a frictional connection at the contact surfaces between the inner ring and the shaft.
The
inner rings of the mounting flanges also have push-off threads due to
their small cone angle. This allows safe and easy disassembly at any
time. Like 2-part shrink discs (displacement-controlled), mounting
flanges have a fixed displacement. This allows simplified assembly
without the use of a torque wrench. Compared to other friction-locked
connections, the transmittable torque of the mounting flanges is not
defined only by the applied pressure of the conical functional
surfaces.
Due to the design of the mounting flanges, the connecting screws also have a considerable influence on the torque to be transmitted. One reason for this is that, compared with other external clamping elements, mounting flanges are in the force flow. The transmittable forces are therefore transmitted from the mounting part through the external clamping element to the shaft and back again. Therefore, the design of the bolted connection must be taken into special consideration in the case of mounting flanges.
Adapter flange AFS
Adapter flange AF-12
Adapter flange AF-22
Adapter flange AF-23
Mounting flanges / external clamping elements of the series "AF-12", "AF-22" and "AF-23" are manufactured in these designs:
The mounting flange is supplied ready for installation. Power is transmitted via pressure and friction between the contact surfaces of the mounting flange, shaft and mounting part. Special attention must therefore be paid to the controlled tightening of the clamping screws and the condition of the contact surfaces. The prescribed tolerances for the shaft and the attachment part must be observed.
The disc
connector should be dismantled and cleaned after disassembly. The
tapered surfaces are coated with a solid grease compound (eg. Molykote G
Rapid) by the manufacturer. Recoat with Molykote G Rapid if tapered surfaces are undamaged. Grease the threads and head bearinig surfaces of the bolts with Molykote.
Adapter flanges are used in marine industry, conveying industry, mixing and process engineering, hydropower engineering. In addition, as far as the technical requirements allow, adapter flanges/ external clamping elements of the series "AFS", "AF-12", "AF-22" as well as "AF-23" are often chosen as a more cost-effective alternative to the use of flange couplings of the series "FK" or "FKB", as these usually have a more compact design, especially with larger shaft diameters.
Flohr Industrietechnik GmbH - Im Unteren Tal 1 - D-79761 Waldshut-Tiengen - Phone: +49 (0)7751 / 8731-0 - info@flohr-industrietechnik.de