Voith Turbo develops new coupling design for belt conveyor drives
Tuesday, July 17th, 2007
The Voith type TPKL family of fill controlled turbo couplings has a new addition: The new, alignment free version (TPKL-T) is Voith Turbo’s response to demand from users who want an alignment free drive solution. Since the market introduction in 1998, the Voith TPKL series of couplings have a proven history of performance and reliability.
Voith type TPKL-T fill controlled turbo couplings are fed by an external oil supply system. The oil supply system is located near the drive assembly and utilizes several flexible hydraulic hoses for easy assembly and connection to the TPKL-T housing and oil cooler. This allows optimum placement of the oil supply system and associated electrical components. The result is good accessibility around the drive. The actual drive, made up of the motor, Voith TPKL-T turbo coupling and gearbox, is centrally supported using a standard torque-arm support below the drive. This means that not only the Voith turbo coupling, but the entire drive can easily be attached to and detached from the drive pulley on site.
The first 12 drives with this new “tunnel design” are being installed in a mine in South West Pennsylvania, USA, which produces in excess of ten million tons of coal. A follow-up contract for a further 32 Voith TPKL-T turbo couplings has already been announced; the mine wants to use the tunnel design as a standard design on all new belt drives. Meanwhile, other mining companies have expressed interest in the benefits of the Voith TPKL-T turbo coupling and are considering this drive design for their future conveying requirements.
The successful basic model, the Voith type TPKL turbo coupling, was specially developed as a compact drive solution for belt conveyors and has been used on every continent since its launch in 1998. The TPKL series has been installed in over 250 drives with a power range up to 250 kW @ 1500 rpm or up to 430 kW @ 1800 rpm. In addition, over 150 drives are in operation with a power range of up to 500 kW @ 1500 rpm or 860 kW @ 1800 rpm. Since it was first launched, the series has been supplemented to enable Voith turbo couplings featuring fill control technology to be used on belt conveyors with an individual drive power of 2400 kW (1200 rpm) or 4700 (1500 rpm).
Voith type TPKL turbo couplings have proven their quality, durablility, and reliability many times over in real applications. They are extremely robust and provide high availability, which has contributed to increased production in many mines. References span the globe – from Australia and South Africa to Spitzbergen and the USA. To meet special customer requirements, Voith Turbo offers versions with reduced height and an external tank, to enable use on a wide range of foundations and base frames. Space and adaptability play a crucial role, particularly when it comes to retrofit solutions.