Page 210 - Water Standards
P. 210

13  When assembling the wheels, their positions shall be symmetrical to the bearing
           box  s sub⁃plate. The bearing box  s two supporting surfaces shall be on the two vertical surfaces
           which are parallel to the wheel center, and the parallel deviation shall be no larger than
           0   09mm. The bearings shall be filled with grease  
               14  Electrical equipment installation shall meet the relevant requirements of the current
           national standards.
           4   1   8  Installation of the fixed winch headstock gear shall meet the following requirements:
               1  After arrival, the equipment shall be accepted on site. Only after the parts have pas⁃
           sed the field acceptance can they be installed  
               2  The speed reducer shall be filled with new lubricant oil when it has been cleaned,
           and the oil level shall be neither lower than the depth of the high speed gearwheel  s lowest
           tooth, nor higher than two times the tooth depth. The oil seal and joint face shall have no oil
           leakage  
               3  Check if the embedded position of the foundation bolts and their extension length
           meet the installation requirements  
               4  Check the headstock gear platform elevation. The elevationdeviation shall be no
           larger than ±5mm and the horizontal deviation no larger than 0   5/ 1000  
               5  The headstock gear installation shall be aligned according to the hoisting center line.
           Both the deviations of longitudinal and crosswise center lines shall be no larger than ±3mm  
               6  The steel wire rope shall be coiled according to the design drawings. The fixation of
           the steel wire rope ends shall meet the design requirements. If fixed by cone shaped sleeves
           which are filled with lead or zinc, the fixation shall be checked by tensile tests. If fixed by
           rope clamps, the number of clamps shall meet the design requirements.
               7  When the hoisting point is at the lower limit, the number of steel wire rope loops on
           the drum shall be no less than 4, of which 2 loops are kept for fixation and the other 2 loops
           are kept for safety. When the hoisting point is at the upper limit, the steel wire rope shall not
           be wound outside of the drum rope race  
               8  The steel wire rope  s limiting guide angle shall be no larger than ±6°; for multilayer
           winding, the steel wire angle shall be between 0   5° and 2   5°; the angle of return of each
           layer shall be between 0   5° and 2   5°.
               9  For headstock gear with double lifting points which use tandem double drums, the
           deviation of the distance between hanging points shall be less than ±3mm. Whatever position
           the sluice gate is in the gate slot, the horizontal deviation of the sluice gate lifting lug center
           line shall meet the design requirements. If it exceeds the allowable design value, the head⁃
           stock gear shall show an alarm indication or put a correction function  
               10  Steel wire rope shall be wound in an orderly manner on the drum layer by layer.
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