Elevator 101 Introduction to Elevator （电梯101介绍电梯）.pdf

Elevator 101 Elevator 101 Introduction to Elevator Introduction to Elevator Technology Technology Acknowledgements Acknowledgements We wish to thank Otis Elevators, A We wish to thank Otis Elevators, A United Technologies Company, for United Technologies Company, for materials used in this tutorial. materials used in this tutorial. Traction System Traction System „ Elevator pulled above by „ Elevator pulled above by wire hoist ropes wire hoist ropes „ Operating machinery „ Operating machinery positioned above positioned above elevator hoistway elevator hoistway „ Moderate to high speed „ Moderate to high speed „ Medium and high-rise „ Medium and high-rise Elevator Pits Elevator Pits „ Safe and convenient „ Safe and convenient access shall be access shall be provided to all pits. provided to all pits. „ Pits shall be accessible „ Pits shall be accessible only to authorized only to authorized persons persons „ A permanent lighting „ A permanent lighting fixture shall be fixture shall be provided in all pits and provided in all pits and the bulb shall be the bulb shall be guarded guarded Elevator Operating Elevator Operating Equipment Equipment Door Protection Door Protection Elevators are protected by a several types of door reopening Elevators are protected by a several types of door reopening devices: devices: „ Infrared Safety Curtains – These devices scan the areas „ Infrared Safety Curt