Elevator

Classification of elevators

2016-10-17
Elevator
1, according to the purpose of classification
Passenger elevators, designed for the delivery of passengers to the elevator, requires a sound safety facilities and a certain car decoration. A cargo elevator, designed primarily for the transport of goods, usually accompanied by an elevator.
Medical elevator, for the delivery of beds, stretchers, medical vehicles and the design of the elevator, the car has a long and narrow features.
Debris lift, for the library, office buildings, hotels, transport books, documents, food and other design of the elevator.
Sightseeing elevator, car wall transparent, for passengers to use the elevator.
A vehicle elevator used as an elevator to transport vehicles
Ship lifts, elevators used on ships.
Construction of elevators, construction and maintenance of the elevator.
Other types of elevators, in addition to the above commonly used elevators, there are some special-purpose elevators, such as cold storage elevators, explosion-proof elevators, mine elevators, power station elevators, firefighters and elevators.
 
2, according to the drive way classification
AC elevator, with AC induction motor as the driving force of the elevator. According to the way drag can be divided into single-speed AC, AC double-speed, AC voltage regulator, AC variable frequency drive and so on.
DC elevator, with a DC motor as the driving force of the elevator. The rated speed of such elevators is generally above 2.00m / s.
Hydraulic lift, the general use of electric pumps to drive the liquid flow, the elevator lift by the plunger.
Rack and pinion elevator, the rack processed into racks, the car fitted with gear rack meshing, the motor driven gear rotation to lift the elevator car
Screw elevator, the straight-top elevator plunger processed into a rectangular thread, and then with a large thrust bearing bearings installed in the cylinder head, and then by the motor through the reducer (or belt) driven nut rotation, so that screw up A car that ascends or descends an elevator. Linear motor driven elevator, the power source is a linear motor. The early advent of the elevator, used the steam engine, internal combustion engine as a direct drive power elevator, is now basically extinct.
 
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