Brief description of machine-roomless elevators - from elevator manufacturer Fuji

Author:FUJIHD Elevator Co.,Ltd. PUblish Time: 18-06-21

The traditional elevators are all hydraulic elevators. The hydraulic elevators have a compact structure and the location of the engine room is relatively arbitrary. Therefore, hydraulic elevators have always been popular. Elevator Manufacturers continue to explore new technologies, so there has been a machine-roomless elevator. The machine-room-less elevator inherits the advantages of hydraulic elevators and uses traction drive systems instead of hydraulic transmission systems. Therefore, it is superior to hydraulic elevators in terms of structure, performance, and energy saving, and has no engine room, reducing costs for builders.

The main scheme of the current machine roomless elevators:

(1) on the set: that is to place a permanent magnet synchronous traction machine at the top of the hoistway than the drag ratio 2:1, more complicated around;

(2) Underlying type: the permanent magnet synchronous traction machine is placed at the bottom of the hoistway, the drag ratio is 2:1, and the winding method is more complicated;

(3) Car top driving type: placing the traction machine on the car top;

(4) For re-driver: Place the traction machine on the counterweight

The control system of machine-room-less elevators is designed with strict standards. Elevator manufacturer Fujitsu strictly follows the following standards.

The size of the control cabinet is not limited by the size of the components used, but mainly depends on the installation position. If the control cabinet is arranged near the landing door, its external dimensions should be narrow and thin, so that its arrangement beside the landing door does not affect the movement of the landing door; if the control cabinet is arranged in the hoistway and drives around the host, its thickness dimension should be compared. Small, to ensure that it has a certain distance from moving parts in the well. If the control cabinet is set up next to the landing door, a certain vertical distance shall be kept between its bottom surface and the floor of the floor where the control cabinet is located (it is recommended to be at least 0.3m) to prevent the water from immersing into the control cabinet when the floor is washed or accidental running occurs; The front and the renovated wall are preferably made up of flat surfaces to prevent accidental damage to the control cabinet and the curiosity of the unrelated personnel. If the control cabinet is located beside the landing door and is embedded in the front wall of the hoistway, and the back of the cabinet is used as the main heat dissipation surface, the rear panel should be directly connected with the hoistway. 

The elevator manufacturer Fuji is continuously developing its original technology and will continue to provide you with quality services.