Procedures for Hoist and Shaft Inspection and Maintenance. Volume I. Systems Description

摘要

There is a variety of shaft and hoist equipment in the United States. Nearly all of the hoist systems are electrically driven. Machine elements that comprise the hoists and ancillary equipment include bearings, shafting, drums, gear reducers, couplings, brakes, clutches, sheaves, and electrical motors. This report describes the various components encountered in most mine hoist and shaft installations along with brief descriptions of the functions and construction; hoist and balance ropes are specifically excluded. Associated with the hoisting systems are the headgear, shaft and equipment, loading-dumping facilities, and the actual conveyances and their rope attachments.