Screw drive elevators are a type of elevator. There is a threaded bar, attached to a motor, going the height of the elevator. There is also a threaded part attached to the elevator. When the motor spins, the elevator moves. This drive system is usually seen on wheelchair lifts.
Concept: Destination dispatch • Elevator algorithm • Elevator control system • Elevator machine room • Elevator maintenance • Elevator major alterations • Elevator modernization • Machine room less elevator
Elevator systems, controllers and equipments: Elevator fixtures • Elevator keys • Elevator special modes • Elevator doors • Door cam • Door interlocks (Interlock wiring communication system) • Door restrictor • Elevator Inspection Certificate • Emergency stop button • Floor designators • Gate switch • Old Deadman controls • Overspeed governor • Motor-generator set & Silicon-controlled rectifier (for DC-powered elevators) • Insulated-gate bipolar transistor (for AC-VVVF-powered elevators) • Regenerative converter (for AC-VVVF-powered elevators)
See also: List of elevator fixtures guide • List of elevator and escalator companies • Elevator door sill guide (Generic elevator component door sill guide) • Floor numbering (Unlucky floor numbers) • Elevator incidents and accidents
|Elevator drive systems|
|Traction • M.R.L. • Hydraulic (Oildraulic)|
|Reference: hkelev - Elevator drive systems
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