Page 73: of Marine Technology Magazine (September 2024)

cost of the entire winch sys- • Simpli? ed assembly with tem by 32% and its weight fewer components resulting by 13%. Reliability and ef- in a 50% reduction in time.

? ciency also improved by • Reduced processing 3% and maintenance was re- costs, fewer logistics hassles, duced by removing the syn- and one partner for the entire chronous belt and sheaves, system by using a single sup- as they have a hard time plier.

standing up to the exposed • Faster response time (ac- saltwater environment. The celeration & braking) and

Winch Application (Before)Winch Application (After)

Kollmorgen servo motor redundant braking (motor and drive with resistive load dynamic braking and servo bank allows the customer to motor brake) with the im- dynamically brake by dumping power to the resistor bank and proved design.

hold statically via an integrated holding brake inside the mo- • Improved safety (load dropping if the belt fails) and re- tor. Multiplying the motor braking through the gearbox ratio duced guarding required (lower cost) due to the elimination of allowed a much smaller braking solution than the initial drum the belt system.

winder shaft-mounted brake that the customer used, resulting in a signi? cant cost reduction. This collaboration exempli? es how innovative engineering

Finally, the customer was able to eliminate one of the roller can simplify complex systems, reduce costs, and enhance bearings and bearing mounts that support the drum winder performance. By rethinking the original winch design, the shaft by rigidly mounting the gearbox and using the gearbox’s company achieved signi? cant reductions in complexity, overhung load capability to support the drum winder instead. weight, and maintenance, while improving reliability and

While the individual components in the proposed design ef? ciency. This streamlined approach not only met the rig- have a higher upfront cost, having fewer of them results in orous demands of a marine environment but also delivered an overall lower total cost solution. Additional bene? ts of the a robust and cost-effective solution that exceeded the cus-

Powertrain Solutions winch assembly include: tomer’s expectations.

Images this page courtesy Regal Rexnord www.marinetechnologynews.com 73

MTR #7 (66-79).indd 73 10/3/2024 11:44:50 AM