30 Jun Birth elevator
Elevator birth and uses
Elevator was born 150 years ago
1854, at the Crystal Palace exhibition in New York, Mr. Elisha Graves. Otis (Elisha Graves otis) publicly demonstrated his safety elevator. He stood on the elevator platform, cut the cable when the platform fell just a few inches will be safe stop. Times cited ushered in the audience applause.
Our introduction of the first lift in 1951
Our first elevator to design and manufacture is East project in 1951, the history of more than four months, the first station by the Chinese engineering and technical personnel to design their own manufacture of elevators, installed in Tiananmen Gate in. This task was given to Tianjin (private) from Qingsheng motor plant. Since then, China’s elevator safety, efficiency, comfort constantly striving to promote the progress of China’s elevator technology.
Use the elevator
(1) With the rise of the elevator is high-rise buildings and developed a vertical lift transport, electric drive vertical elevator in the hoistway a fixed range, traction run up and down, to reach the vertical transport (transport of passengers ) or the vertical transport (carriage of goods) purposes.
(2) escalators, moving walkways, with the circulatory system and orbit rung for upward, downward or horizontal distance passenger transport electric drive device.
Phase 2 of the elevator control system technology development and prospect
(1) DC control (in the late 1980s have been eliminated), DC motor cascade, heavy weight, particularly energy consumption.
(2) XPM (chauffeured AC double-speed elevator), it does not automatically control operation.
(3) KJX (no driver assembly election AC two speed elevator), you can choose to have a driver and no driver action.
(4) VV (variable speed lift), stability and comfort the elevator is further improved.
(5) VVVF (variable frequency speed regulator elevator), in addition to all kinds of functions than the above, but also into a humane system, is currently more advanced type elevator.
(6) people are developing digital elevator, solar elevators, magnetic elevators, elevators without counterweight, tomorrow will be integrated into the new elevator.