Froude Hofmann’s new drilling test rig

The test rig is designed to check motors prior to final assembly and to test complete mobile drilling rigs, including self-propelled, stationary and truck mounted. Boart Longyear is currently operating the rig at its Adelaide facility.

The test rig’s torque measuring system is based on two brakes that are linked via a right angle drive 1:1 ratio gearbox and an alignment device that is connected to the rig’s drill rod.

The whole system is installed in a pit, to allow the drilling platform truck to be positioned directly over the test rig. The drilling rod is connected vertically via a coupling and cardan drive shaft. 

Froude Hofmann said this system allows customer rigs to be load tested in the shop during the refurbishment process, which reduces the risk of downtime when the rigs return to service. 

The dynamometer system and sub-assemblies can be full-load tested prior to final assembly, which improves the build process, Froude Hofmann said.

Load testing and data acquisition can be carried out on a complete rig, collecting information such as bearing temperature, oil pressures and load charts.
Contact: www.froudehofmann.com