| 摘要 |
<p num="1"><br/><br/><br/><br/> In order to design a two-roll machine, in particular a <br/>roller press for material bed comminution of granular <br/>material, having two rotatably mounted rolls driven in <br/>opposite directions and separated from each other by a <br/>roll gap, in such a way that the roll change can be <br/>brought about still more simply and rapidly, according <br/>to the invention it is proposed to attach to the front <br/>end of the roller press which is adjacent to the fixed <br/>roll (10) an additional frame, specifically a lower <br/>frame (23) lengthening the two bracket lower flanges <br/>(15, 16) and a transverse frame (24) that is connected <br/>to the two bracket upper flanges (17, 18) and has a <br/>clear opening width which permits the complete rolls to <br/>be pushed through the transverse frame (24) on to the <br/>lower frame (23), and to construct the frame end pieces <br/>(19, 20) supporting the fixed roll (10) during the <br/>roller press operation such that they can be folded up <br/>hydraulically for the purpose of the roll change, so <br/>that, with the machine frame end pieces folded out <br/>upwards, the two rolls (10, 11) together with bearing <br/>housings (12, 13) can be pulled successively out of the <br/>roller press onto the lower frame (23), from where they <br/>can be removed conveniently, for example vertically, <br/>and transported onwards, in particular for example by <br/>means of a mobile crane.<br/>
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