What kind of elevator is suitable for our family's choice? For the types and performance of elevators on the market, I would like to summarize and share with you.
First, traction elevators are mainly divided into forced drive elevators and counterweight elevators, such as dragon gantry and backpack elevators. This kind of elevator is usually used in commercial space. It is a little because it has fast speed and low noise. The price is relatively cheap, but this kind of elevator also has relatively high requirements for space. It needs a pit. The floor height of each floor is no less than 2.6m, and the counterweight block also needs to occupy space. The actual area utilization rate can only reach about 60%, and the utilization rate of shaft is relatively low. According to Article 31 of the regulations on the supervision of special equipment * *, such elevators shall be cleaned, lubricated, adjusted and inspected at least once every 15 days.
Class II, hydraulic elevators only need one-sided load-bearing wall to bear the force, and the requirements for the top and pit are very low. In other words, its stress only depends on one side of the load-bearing wall, and there is no requirement for the top and bottom of the wall. In case of power failure and failure, you can press the emergency button to realize one key self rescue. The space utilization rate of hydraulic elevator tends to be between traction elevator and screw elevator. Because of the design principle, this kind of elevator is not suitable for high-rise floors. For hydraulic elevator, its disadvantage is that it will leak hydraulic oil. With the frequent use of the cylinder piston, when the service life expires or there is wear and fracture, the hydraulic oil may leak into the hoistway and the maintenance will be more troublesome. If the pump station is not isolated or far away from the shaft, the elevator will have certain noise pollution during operation. The comfort of hydraulic elevator shall be determined according to the installation and commissioning, which is much worse than that of drag and pull elevator. In terms of price, compared with the traditional pull elevator, due to the low requirements for civil engineering, the daily maintenance cost is still relatively low.
Three types, the working mode of screw elevator, we can imagine it as a large screw rod, and the nut drives the platform to run on the screw. When the screw rotates forward and backward, the nut will rise and fall, and the lift car will rise and fall with it. The safety of screw elevator is that all elevator structures have no machine room, no counterweight, no ceiling height limit and high space utilization. It can be installed in any place and can open the door on three sides, with strong practicability. The self-contained integrated glass sightseeing shaft does not need civil engineering. The shaft has high aesthetics, simple installation, simple daily maintenance and low cost. Screw driven operation, equipped with power failure emergency leveling, with very high safety; Screw elevator pit only needs 50mm or 0 pit.
Screw household elevator has simple structure, less vulnerable parts and less customer trouble in later maintenance. The structural principle of the screw elevator makes the screw elevator free from the phenomenon of top punching and bottom squatting, so the screw elevator is also the reason for installing the elevator in the compound building.
The maintenance cycle is once a year. Although the screw elevator has many advantages, its disadvantages are also very obvious. Due to structural problems, the running speed of the screw elevator is only about 0.15-0.2 meters per second.