| 摘要 |
A mechanial power spring combination 20, especially for use in a bowl classifier 10 of the type used for fine distribution of material like coal. The power that the grinding rolls 18 of bowl classifier 10 exert on the coal to produce fine division of the coal are created by the actual power spring combination 20. The actual power spring combination 20 includes housing 44 of the spring, which contains a closed partial combination unit for the power spring combination's 20 functioning part, the bearing arrangement 38 of the shaft connected to one end of the spring housing 44, the pretension shaft device 40, whose one end is supported by the bearing device 38 of the shaft, compression spring device 42 which is arranged to enclose the pretension shaft device 40 and a control device 46 which fastens the power spring combination 20 to bowl classifier 10. <IMAGE>
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