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 Dictionary

Building lift - is a transport vehicle of interruptive action, which is set on an hour of buildings works, is intended for raising and chuting of build materials (freight lift) or build materials and people in a booth which moves on the vertical sending, from one level on other.

Catching - is a device for braking, stop and maintenance of booth (counterbalances), on sending. 


Control system - is an aggregate of control units which provides work of elevator.

Doors' drive of an elevator - is a device for opening and pushing a door of elevator.


Doors of the central opening - are extensible doors of booth (mines), the leaves of which move inidentical planes in different sides.


Doors of the telescopic opening - are extensible doors of booth (mines), the leaves of which move in rivnobizhnikh planes in one side, calling one for other.

 

Machine - Roomless Elevator E-mail
System of machine- roomless elevators is one of the most prominent breaches in elevator industry in the last few years.
Machine- roomless elevators (most prominent and most perfect after high-quality descriptions are elevators of Otis Gen 2) have a number of competitive advantages:
-drive and management station is disposed in overhead part of mine which does not require a separate machine apartment;
-new construction of a drive which has small sizes, but high output-input ratio;
-special smoothness and quite of motion;
-flat, flexible and easy strap instead of standard ropes;
-simple and rapid assembling.
Flat poliuretan straps, which are used in Gen2, are reinforced with 12 tendons, each of which presents by itself twined steel rope, have high durability and firmness to stretching. Their service term is three times longer than the term of traditional steel ropes.
Every strap maintain a load weighing 3600 kg and it is on 20% easier than ordinary steel ropes of that durability.
Flexibility and the best stretch of the steel strap concealed with poliuretan as compared to ordinary ropes does the transmission of electric power from a winch to the booth more effective, and also remove the sounds of friction of metal at a metal.
The elevator of Gen2 is considered the most compact system. Compact winch (on 70% less traditional) and frequency managed drive is provided especially smooth motion of booth.
The specially projected framework of elevator and direct-drive winch erect to the minimum a vibration during motion of booth. Digital frequency managed drive with vectorial control provides the smooth motion of elevator.

Hauling straps and direct-drive do not required greasings.
The presence of electromagnetic filter removes the influence of obstacles from work of elevator on the electric systems of house and corresponds to all European standards.
This system offers to the architects new freedom in planning of the upper part of building.
Proprietors of buildings see possibilities of economy due to an energykeeping winch and absence of necessity for a machine apartment, that allows to economize an apartment for production aims or handing over in a rent.
Standard communication means which provide continuous round-the-clock diagnostics of elevator work and connection with a passenger at simultaneous maintenance of elevators by mechanics are used in the elevator of Gen2 .
As an option, it is offered the flat coloured screen (e*display) with information from the Internet about the last events, weather, sport, state of financial markets etc.
The system provides high quality journey in the elevator, smooth and quiet work, high exactness of stop of booth on a floor.


 
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