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Introduction to elevators

PUBLISH TIME: 2021-04-08

An elevator refers to a permanent transportation device that serves several specific floors in a building, and its car runs on at least two rows of rigid rails that are perpendicular to the horizontal plane or whose inclination angle to the plumb line is less than 15°. There is also a stepped type, the stepper is installed on the track to run continuously, commonly known as the escalator or moving walk. Fixed lifting equipment serving the specified floors. The vertical elevator has a car that runs between at least two rows of vertical or rigid guide rails with an inclination angle of less than 15°. The size and structure of the car are convenient for passengers to enter and exit or load and unload goods. It is customary to regard elevators as the general term for vertical transportation vehicles in buildings regardless of their driving methods. According to the speed, it can be divided into low-speed elevators (below 4m/s), fast elevators 4-12m/s) and high-speed elevators (above 12m/s).

 

Introduction to elevators

 

Hydraulic elevators began to appear in the middle of the 19th century and are still used in low-rise buildings. In 1852, E.G. Otis of the United States developed a safety elevator for wire rope lifting. In the 1980s, the driving device was further improved, such as the motor driving the winding drum through a worm drive, and the use of counterweights. At the end of the 19th century, friction wheel transmission was adopted, which greatly increased the lifting height of the elevator.

 

At the end of the 20th century, elevators used permanent magnet synchronous traction machines as their power. It has greatly reduced the area occupied by the computer room, and has the advantages of low energy consumption, energy saving and high efficiency, and fast upgrading speed, which greatly promotes the development of real estate in the direction of super high-rise buildings.

08 Apr, 2021

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How to make the elevator safer? Unexplained power outages, line failures, elevator failures, etc. Let the high-end property elevator, which itself means a symbol of high-quality life, act as an invisible killer.

08 Apr, 2021

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How to choose elevator accessories? With the changing needs of modern buildings, more and more buildings are emerging, and the atmosphere of a modern city is becoming stronger and stronger.

02 Apr, 2021

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With the improvement of people's lifestyles and the advancement of science and technology, intelligence has been realized in many aspects, and elevators are now one of the products that are more exposed in daily life.

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