Friction (Koepe) winding installations upper suspension beam accommodates the lifting and lowering operations. It is moved by means of two electrically powered synchronized lead screws that can comfortably travel at 2.5 m/min under a full load of up to 650 kN. The lead screws are driven by an electric motor through a self-locking worm gearbox complete with an additional fail-safe brake arrangement. During operation, the CLD will be securely anchored to the headgear structure by means of clamps and/or anchor bolts to prevent lateral movement.
Operation The winding ropes are clamped on the upper suspension beam and pulled upwards by means of the rotating lead screws. Upon completion of each stroke, the rope clamps are manually engaged in the fixed suspension beam. The movable suspension beam is then moved slightly downwards, transferring the load to the clamping wedges in the fixed suspension beam. The movable suspension beam now becomes load free and allows for the manual removal of its
wedges before moving to its original position for the start of the next cycle. Wedges are removed using small jacks mounted on a common rail powered by a manually operated hydraulic pump. Though this is a manual process this sequence can be repeated as many times as needed.
Tehnical data table
General applications of the CLD
Advantages of Electro-Mechanical CLD • Lower capital cost option when compared to the fully automated hydraulic CLD • Lower maintenance costs when compared to the automated hydraulic CLD • No hydraulic power pack is required
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HEAD OFFICE 1st Floor, Osborne Office Suites, 4 Osborne Lane, Bedfordview, 2007 South Africa PO Box 3037, Bedfordview 2008, South Africa, Tel. +27 11 383 9300
Figure 3 describes the lifting sequence.
Figure 3
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Clamping and lifting of multiple steelwire ropes suspended in a friction winder mine shaft compartment Lifting and lowering the maximum loads within a hoisting compartment Creation of slack rope (for removal of pins, or removal of ropes from the winder drums and sheaves Accurate positioning of conveyances during rope-up or rope-changing operations.
26 Mining Business Africa | September - October 2023
WADEVILLE FACTORY 12 Tedstone Road, Wadeville 1428, Ekurhuleni, South Africa
www.winder.co.za
