Sheave: Press the "Coal Mine Safety Regulations", the ratio of the minimum diameter and the diameter of the sheave rope lifting equipment shall comply with: Inoue lifting cylinder means and Wai hold angle greater than 90 ° the sheave, not less than 80; Kok Wai hold less than sheave 90 ° shall not be less than 60; underground Wai hold angle greater than 90 ° day round sinking sheave, not less than 60; Wai hold less than 90 ° angle of not less than 40 days round. Sheave Installation and Maintenance: During the day round use class time to check whether the heating phenomenon bearing supply sinking sheave, and observe whether the normal lubrication sinking sheave plant, lubricating oil level not less than the capacity of the chisel Well sheave manufacturer, or else should be increased. Change the oil every six months. Under normal operating conditions sheave month copper tile, bearings and other fasteners to conduct an inspection and adjustment, abnormal wear and tear should be replaced or repaired. Production sinking sheave | sinking sheave | XINGDA mine by Anyang County Xingda Mining Machinery Limited. Anyang County Xingda Mining Machinery Co., Ltd. (www.ayxxdkj.com) strong, credible, Anyang in other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead XINGDA mine and you hand into the brilliant, for a better future!