Hoist (mining)
（重定向自Drum hoist）
![A drum hoist (cables visible) and motor](/Images/godic/202501/10/Engine_House4020.jpg")
![A drum hoist and motor](/Images/godic/202501/10/Engine_House_-_Hoist_Drum4020.jpg")
![A headframe housing a friction hoist](/Images/godic/202501/10/Cliffs_Shaft_Mine_tower4020.jpg")
In underground mining a hoist or winder is used to raise and lower conveyances within the mine shaft. Modern hoists are normally powered using electric motors, historically with direct current drives utilizing solid-state converters (thyristors), however modern large hoists use alternating current drives that are variable frequency controlled. There are three principal types of hoists used in mining applications: