Elevators Market
News, Technical, Event, Spart Part Of Elevators And Escalator
News, Technical, Event, Spart Part Of Elevators And Escalator
HYDRAULIC ELEVATORS A third major type of elevator in use today is a modern version of the hydraulic elevator. Most hydraulics are direct-plunger-driven from below (the cylinder extending into the ground as high as the elevator rises), and the operating fluid is oil moved by high- speed pumps rather than water under pressure see the
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GEARED TRACTION MACHINES As the name implies, the geared traction elevator machine utilizes a reduction gear with a high-speed motor to drive the traction sheave. A high-speed ac or dc motor drives a worm and gear reduction unit, which in turn drives the hoisting sheave, the net result being the slow sheave speed and high
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