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Home elevators refer to elevators installed in private […]
Home elevators refer to elevators installed in private residences and only used by a single family member. It can also be installed in a building that is not used by a single family as a tool for a single family to enter its residence, but the public or other residents in the building cannot enter and use it. What are the driving modes of home elevators?
The rated speed of home elevators does not exceed 0.4m/s, the rated speed of home elevators without car doors does not exceed 0.3m/s, the car travel does not exceed 12m, and the rated load does not exceed 400KG. It is mainly divided into traction elevator, screw elevator and hydraulic elevator.
According to the national recommended standard GB/T21739-2008 for home elevators, the drive types of home elevators are: gear and rack drive; wire rope traction drive; screw and nut drive; hydraulic drive. The following Elevator Recruitment Network introduces several common driving methods in the market.
Home elevator driven by screw and nut
The main drive uses the principle of screw drive. The motor drives the nut installed on the L-shaped manned platform to rotate, so that the nut moves up and down along the screw, so as to realize the lifting of the manned platform. There is no need for special elevator machine room, hoistway and pit, and the installation location can be selected to the greatest extent. Low requirements for civil construction, only one solid load-bearing wall can be installed, stable performance. With emergency relief device, people can be released in an emergency when the power is cut off. This kind of home elevator breaks the traditional elevator drive mode and adopts a screw drive mode with a more concise structure.
Hydraulic drive home elevator
The elevator structure is basically similar to the driving type of ordinary commercial hydraulically driven elevators. Only use hydraulic drive when the elevator goes up, and use its own weight to make the elevator go down when it goes down. It is equipped with stop valve, check valve, overflow valve, directional valve, rupture valve, throttle valve, speed limit shut-off valve, overload switch, and maximum pressure Safety protection such as valve and oil temperature protection switch. The later maintenance and replacement cost of hydraulic oil of hydraulic drive elevator is relatively high, and the pollution of hydraulic oil is serious, there is peculiar smell, and it is easy to cause fire.
Family villa elevator
The host is fixed to the load-bearing wall through the base, so that the installation is firm and stable, and the force is transmitted to the load-bearing wall.
The buffer 5 is fixed on the counterweight 3 and the car 2 which is frontally projected on the bottom of the hoistway, which acts as a buffer against the accident of the car squatting on the bottom, reducing personal safety hazards and product damage.
The control cabinet 4 is connected to the main engine and the car through the accompanying elevator. First, it provides the external power supply and car lighting of the main engine and other power sources and signals. Secondly, the car signal transmission and the feedback of the main engine signal are also sent to the control cabinet through the accompanying elevator, and the control cabinet Give instructions to control the operation of the elevator.
The control cabinet 4 contains a set of UPS backup power supply, which is used in the case of a power failure, the control cabinet automatically switches to the backup power line to make the elevator run to the nearest floor and open the door.