ESCO Power
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Variable Speed Drive (UCD)

Twin Disc UCD

The Universal Control Drive is a variable speed drive classified in the category of adjustable couplings. Power is transmitted by a modulated clutch mounted in a housing acting as support and oil sump.

The basic torque transmission components of the UCD are similar to those of a multi-disc clutch. A stack of friction discs compressed to a greater or lesser degree are mounted alternately on the driving and driven shafts.

The clutch comprises a stack of discs which are free to move axially they are fixed alternatively to the driven and driving shafts. The number of discs and their size depend upon the power to be transmitted. Some discs are in steel, others have a steel core covered by porous material; they are grooved to allow oil to flow continuously between them. Consequently the torque is transmitted through a hydro-viscous media and without wear as the discs are not in contact during the slipping phase. When lock-up is achieved, the input and output speeds are synchronised; thus efficiency is maximum (99%). This advantage is important versus other couplings where output shaft slip relative to the input shaft is required to transmit the torque. Advantages:

  • Use of standard and cheap squirrel cage motors

  • Control can be manual, pneumatic or electrical and can give speed regulation controlled by parameters varying with the driving speed such as pressure, flow, liquid level, etc …

  • Direct, instantaneous response and accurate regulation

  • Starting-up a motor under no-load conditions and progressive acceleration of the driven machine in conjunction with application requirements

  • Silent operation even at high speed

  • No monitoring, no special maintenance requiring skilled labour

  • High efficiency

  • Low investment cost

  • No generation of harmonics and interference in the power supply network

  • On existing installations, no requirement to change the motor nor the pump

Range of Units:

The UCD covers a power range of 160 to 3000 kW at 3000 rpm. The whole range is covered by 5 basic models.

Overal waar nodig is, biedt Esco Power, lid van de Esco Group met bijna 70 jaar ervaring, u service, verkoop en naverkoop van aandrijvingen voor uw diesel en hydraulische motoren in de Marine en Industriële toepassingen. Ons gespecialiseerd team in selectie, verkoop en naverkoop, is er voor opgeleid u de juiste oplossing te bieden voor elke marine of industriële applicatie. Twin Disc keerkoppelingen, krachtafnemers, pompaandrijvingen. Braden Carco Gearmatic lieren, hijslieren en planetaire gearboxes. Nam Jet hoog koppel water jets.  Transfluid vloeistofkoppelingen, krachtafnemers, remmen, meervoudige pompaandrijvingen. Twin Disc Technodrive pompaandrijvingen, krachtafnemers, koppelingen. Centa elastische koppelingen. Mekanord keerkoppelingen. Comer planetaire aandrijvingen, assen. Omsi assen. Esco Couplings vaste en flexibele koppelingen. Funk aandrijfassen.
Esco Power heeft ervaring met het ontwerpen van zeer veeleisende aandrijflijnen voor diverse toepassingen, zoals: zware brekers, nood aandrijflijnen, ventilatiesystemem, mixers parallel hybride aandrijvingen. enz. Niet alleen ontwerpen en verkopen, maar ook onze service en onze grote voorraad aan onderdelen voor al deze producten zijn onze sterkte.