Sheave Installation: Under normal operating conditions sheave wheel Shandong Shaft day, month copper tile, bearings and other fasteners to conduct an inspection and adjustment, abnormal wear and tear should be replaced or repaired. Mine sheave holder winch is mainly used when the coal mine shaft and inclined lift to the lifting rope between the guide direction of the container used. Sheave: Press the "Coal Mine Safety Regulations" Shaft sheave manufacturers, improve the ratio of the diameter of the smallest diameter of the wire rope sheave equipment should conform to: Inoue lifting cylinder means and holding angle greater than 90 ° around the sheave, not less than 80 ; Wai hold less than 90 ° angle sheave, not less than 60; underground holding angle greater than 90 ° around the sheave, not less than 60; Wai hold less than 90 ° angle of not less than 40 sheave.