Electric Rack Pinion Jacking System

Jacking system for jackup rigs we have a full range of elevating units with lifting capacities from 50 to 455 metric tons per pinion.

Electric rack pinion jacking system.

However one of the well known methods of elevating the jack up hull is rack and pinion. Capable of lifting a load upwards of 93 600 kips. Rack and pinion jacks are ideal to push pull lift and lower loads. Hand or motor driven.

Cost effective and reliable system for over 100 vessels worldwide. The electric motors of the rack and pinion systems are driven by siemens individual variable speed drives. We can offer bespoke rack lengths and movements multiple jacks in a set operated via one handle. The rack and pinion jacking system is designed manufactured and tested in our plant in nantes france.

There is a multiple jacking system on the jack up rigs used. Designed and built in compliance with abs dnv rules for self elevating platforms vessels. The jacking units can be mounted in a floating frame or can be mounted directly into the fixed jacking structure depening on the jack up design. Electric rack pinion jacking system hydraulic rack pinion jacking system cylinder jacking system.

Each jacking unit consists of a special design 7 teeth pinion driven by an electric motor through an input and planetary gearbox. The electrical variable speed rack and pinion jacking system advertisement the electrical variable speed rack and pinion jacking system enhancing efficiency on jack up rigs with an alternative to conventional hydraulic systems copy. Rack and pinion skidding systems are used for moving the cantilever and the drill floor of a jackup rig to locate the well center at correct position. For high speed operation and deep water application rack and pinion systems are preferred.

Abb provides a complete jacking power system including power distribution jacking drives and motors. The gustomsc rack pinion system offers jacking speed up to 0 8 m min and leg handling speed up to 1 2 m min therefore the jacking operation is no longer the decisive factor during a rig move. Abb s jacking packages are designed to drive rack and pinion jacking systems. Our blm skidding units are installed above the main deck and are based on the same proven technology used in our jackup elevating systems.

This system uses multiple hydraulic or electric motors and gearboxes to distribute the torque between all legs to lift the whole platform smoothly and simultaneously. In general four to eight jacking units engage with a rack of the jack up leg. Our systems can elevate the hull into position for drilling operations and for raising and supporting the legs while the rig is afloat. Abb jacking power system.

Liftboat with jacking legs. Patented load sharing devices ensure equal load distribution over the pinions increasing safety and lifetime of the jacking system.