Classification Of Passenger Elevator And Current Obstacles To Development

     Passenger elevator: For the transport of passengers designed elevators, requires a sound safety facilities and a certain car decoration. A vertical lift powered by an electric motor is fitted with a box-shaped pod for use in multi-storey buildings. Fixed lifting equipment for service on specified floors. It has a car that runs between the rigid rails with at least two columns perpendicular to it. The size and structure of the car is convenient for passengers to enter or unload goods. No matter how it is used, the elevator is the general name of the vertical transportation tool in the building.Passenger Elevator
    Classified by driving mode AC elevator: With passenger elevator-AC elevator circuit diagram, AC induction motor as the driving force of the elevator. According to the way of drag can be divided into AC single speed, ac double speed, alternating voltage regulating speed, AC variable frequency variable speed and so on. DC Elevator: Using DC motor as the driving force of the elevator. The rated speed of this kind of elevator is generally 2.00m/s above. Hydraulic Elevators: The general use of electric pumps to drive liquid flow, from the plunger to make the car lift elevator. Gear Rack Elevator: the rail is machined into a rack, the car is fitted with the gear meshing with the rack, and the motor drives the gear to rotate the elevator to lift the car. Screw-type Elevator: The straight-top elevator plunger processing into a rectangular thread, and then with the thrust bearing nut installed in the oil tank top, and then through the motor through the reducer (or belt) to drive the nut rotation, so that the top of the screw car lift up or down elevator.Passenger Elevator
    Linear motor driven elevator, its power source is linear motor. In the early days of the elevator, the steam engine and the internal combustion engine were used as direct driving elevators. The motor is classified by the speed reducer according to the classification of the elevator without strict speed. Low speed ladder: Often refers to the elevator below 1.00m/s speed. Medium speed Ladder: Usually refers to the elevator in 1.00~2 00m/s. High speed ladder: usually refers to the elevator with speed greater than 7m/s.Passenger Elevator
    Why is ladder insurance developing slowly? The main responsibility is unclear. Elevator safety involves elevator manufacturing enterprises, installation units, property rights units, property management units, maintenance units, testing institutions, the use of 7 categories of subjects, although the "Special Equipment Safety Law" on the main responsibility of the provisions, but because of the actual situation is more complex, especially the elevator use unit will be with the elevator delivery stage and management mode of differences, often difficult to define the main responsibility under the law clearly Therefore, all kinds of subjects to their own security responsibility and may face the risk of lack of accurate understanding, resulting in the elevator safety management attention to the deficiencies, nor the willingness to pass the risk, more reluctant to take the initiative to participate in the elevator liability insurance. Relatively speaking, the foreign legal system is more perfect, the safety of the main responsibility has a clear definition, in the event of a safety accident, the safety responsible person will face high compensation, so foreign enterprises often choose to insure the elevator liability insurance, reduce their own safety responsibility risk.Passenger Elevator