雙塔俯仰式纜機英文文獻翻譯(完整版)
【正文】 cts. By the unavoidable slip between return pulley and crab traversing rope, and by the retensioning of the crab traversing rope, a correction of the screwtype limit switch and the position indicator will bee necessary. This correction should be made at least once a day with start of the new shift. For this purpose the crab must be run to a position that is known to the crane driver and from which is known the exact distance up to the respective end of the track rope (as reference position would be suitable a rope carrier or the concrete platform) . Incase, at that position of the crab, the value shown for the position of the crab is not in accordancp with the actual distance, then the screwtype limit switch and the position indicator must be corrected. For this purpose the crab must be run into a position, where the position indicator is showing the set distance ( e. g. at the first rope carrier 50 m) . As soon as this figure is appearing on the display, crab traversing must be interrupted and the synchronous button will separate the return pulley from the screwtype limit switch and the position indicator and will limit the crab traversing speed to v 20 % of v rated. The synchronous button must be depressed during the whole synchronization procedure. The crab is then run to the reference point that has been set to the display (. the first rope carrier) Mainteoanoe Beside the general maintenance and inspection work, and as is further described under the chapter General Maintenance Instructions and Lubrication, the owner should take care for a uniform running of the ropes in the Becorit lining. As soon as irregularities will occur, these can be eliminated by a correction of the alignment of the drive pulley and of the return pulley. For this purpose setting screws are fitted to the pillow blocks of the drive pulley and of the return pulley. By the clamping set incorporated in the return pulley, the latter can also be shifted axially. The drive pulley of the crabtraversing winch is designed as 2groove drive pulley lined with Becorit : Depending on the varying rope tension of the crab traversing rope in the two rope grooves and the different rope slip there from results a different wearing of Becorit lining in the two grooves. A different groove depth means also a different circumferential speed and this results forcibly in an increased rope slip and therefore in a heavier. wearing of the lining. Therefore the drive pulley grooves must be checked frequently for their depth (by means of gauge). With a depth difference of 2 mm one groove is to be turned until the two grooves have
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鄂ICP備17016276號-1