The most popular design is the roped elevator. In roped elevators, the car is raised and lowered by traction steel ropes rather than pushed from below. The ropes are attached to the car, and looped around a sheave. The sheave is connected to an electric motor. When the motor turns one way, the sheave raises the elevator; when the motor turns the other way, the sheave lowers the elevator. In gearless elevators, the motor rotates the sheaves directly. In geared elevators, the motor turns a gear train that rotates the sheave. Typically, the sheave, the motor and the control system are all housed in a machine room above the elevator shaft.
- Left Mouse Button – rotation in 3D space
- Mouse scroll wheel – zoom
- Click on parts of objects – get more information
This content is restricted to site members. If you are an existing user, please login. New users may register below.