DRIVES & CONTROLS
The DB Santasalo FD-Drive is a fully integrated planetary reducer and permanent magnet motor construction with no separate motor bearings
important power conversion technology for large capital equipment applications like conveyors , pumps , grinding mills and other high power
applications in the 1 MW to 10 MW + range . It offers better power density in a smaller package , energy efficiency , better speed-torque controls and most importantly CO 2 reductions . This equipment is for large capital-ex project work offering mines cutting edge technology with a permanent magnet motor & gear fully integrated and packaged together .”
Finally , DB Santasalo says it has added value to its gearing systems with the GearWatch condition monitoring system - a smart , compact and value- adding tool for predictive remote process equipment monitoring . GearWatch measures , records and analyses data , reporting changes in measured parameters in real time , 24 / 7 via the internet . Oil particle content monitoring enables early detection of potential gear unit failures months , or even a year in advance . This allows you to plan maintenance activities around your operational requirements . It is available in five packages : DBS GearWatch Standard , where oil particle counting continuously monitors the condition of the gear unit ; DBS GearWatch Oil Monitoring , where online oil quality measurements are combined with oil particle counting ; DBS GearWatch Vibration Easy , where wireless vibration sensors are the solution to monitoring large amounts of gearboxes and rotation devices , DBS GearWatch Vibration , which offers high quality vibration analysis with wired vibration sensors and rpmsensors , and DBS GearWatch Pro , a tailored monitoring system for gear units & drive trains within selected parameters . It provides comprehensive condition monitoring by combining oil particle & quality measurements with vibration analysis .
SEW Eurodrive ’ s DriveRadar ®
Visitors to this year ’ s Electra Mining Africa exhibition in Johannesburg saw SEW- EURODRIVE South Africa showcase more technology to drive productivity and efficiency . Addressing growing demand for reduced total cost of ownership ( TCO ), SEW-EURODRIVE South Africa launched its DriveRadar ® solution for remote condition monitoring and maintenance forecasting . The new solution uses an extensive package of sensors to capture all operationally relevant physical parameters including vibration behaviour , oil level , oil temperature , ambient temperature and input speed . Gear unit data is digitally recorded and automatically assessed . Results can be used to evaluate the unit ’ s condition and predict future changes in condition , providing a firm basis for predictive maintenance . Also at Electra Mining Africa was the single-stage M1 series industrial gearbox , for high speed and high power applications – relevant to pumping duties in mining as one example . It also demonstrated its girth gear capability , with a 3.5 m diameter static model specially imported for the show . Four of these girth gears have already been supplied to a large mining operation in Limpopo province .
Of course , SEW Eurodrive also offers customised helical and bevel-helical gear units for the heavy-duty sector . With a total of 17 different sizes available , the MD series covers the 528 to 2,584 kNm torque range . With numerous options and additional features as well as the possibility to implement customised solutions , the series ensures the reliable operation of plants in the heavy load range . “ The integrated gear unit concept , with its fine graduation of sizes and wide gear ratio range , means it is always close to the requirements of the particular application . The MD series is not only simple to assemble and start up but also extremely reliable . The horizontally split gear unit housing also improves maintainability .” Available in a helical or bevel-helical gear design , the gear units can be used in many industries and applications . Sealing systems , bearing and lubrication concepts etc have been designed to facilitate adaptation to the prevailing environmental conditions and load situations .
Hägglunds Atom and Fusion
The smallest of the Hägglunds hydraulic motors from Bosch Rexroth has been transformed : The Hägglunds Atom takes over from the existing Hägglunds CAb – supplying not only more revolutions per minute , but also far more power than motors of similar size . The result is a tiny , power-dense package ideal for mobile applications . “ The Hägglunds Atom is a powerhouse in miniature , with a maximum torque of up to 13.6 kNm and an outer diameter of only 350 mm . It has a maximum speed up to 400 rpm , depending on frame size . All sizes allow maximum pressure up to and including its maximum speed , meaning an output power of up to 394 kW – with a motor weight of 52 to 102 kg .” Its peak pressure of up to 420 bar lets it deal easily with shock loads . That opens the door to smaller machines in tough and unpredictable applications . “ The Hägglunds Atom is rugged and robust , like our larger Hägglunds motors ,” says Wolfram Ulrich , Vice President Sales Hägglunds products and solutions at Bosch Rexroth . “ That makes it just as dependable as it is versatile .”
Hägglunds in 2022 also launched a new drive system innovation that , it says , brings a new definition of compact to the already space-saving Hägglunds drive concept . Hägglunds Fusion sees an entire hydraulic direct drive system mounted
SEW-EURODRIVE offers the DriveRadar ® solution for remote condition monitoring and maintenance forecasting
54 International Mining | NOVEMBER / DECEMBER 2022