Electric roller shutters may seem simple at first glance—just a door body, a motor, and a controller, right? If that's your thought, you're sorely mistaken. Roller shutters have many components, and while they may appear small, each one is indispensable.
In terms of the door body, it is not a solid piece of steel. It is composed of slats from a rolling shutter curtain, which includes both male and female hook ends on the main section. The feature lies in the male hook end being fixed to an elastic segment of the main section, with the other end of the elastic segment securely attached to a retention male piece. Holes are drilled in the elastic segment. The female hook end is connected to the main section and matches the male hook end with a shaped groove, with the other end of the groove securely attached to a retention female piece.
By assembling the curtain slats one by one, the roller shutter door's body remains rigid and less prone to bending or warping during rolling, resulting in enhanced durability and greater malleability.
The structure of the door body is meticulously designed, and the motor's structure is equally rigorous. The motor of the electric metal roller shutter doors is composed of a transmission equipment that includes automatic gears, transition gears, and driven gears.
The automatic gear equipment is mounted on the motor shaft, with a driven gear having a drive block fastened by screws. The drive block is positioned through bearing equipment on a support shaft fixed to the main end plate. The drive block fits with the equipment on a drum end transmission plate. The other end of the drum is fixed to the end plate via a locating plate, a connecting shaft, and a bearing housing. The drum and locating plate are relatively fixed, and the bearing housing is secured to the end plate with screws. A limit controller is fixed on the motor.
Well-polished gears, which turn smoothly during rotation, make the gear motor operate more comfortably and significantly extend its lifespan. Conversely, poor-quality gears can affect the entire transmission system, causing the motor to be less reliable.
Although roller shutter components are numerous, the main focus is on the door body and motor, which are the core components of roller shutters. Therefore, one cannot be casual about the components of roller shutters. However, when selecting roller shutters, the components are usually pre-selected. In this case, it is essential to choose a reputable roller shutter manufacturer. Typically, reputable manufacturers have high demands for components during production, as they do not want defective products to tarnish their reputation.
The working principle of the stepper motor in roller shutter components is to convert electrical pulse signals into open-loop control elements for angular or linear displacement. Under non-overload conditions, the motor's speed and stopping position depend only on the frequency and number of pulse signals, not affected by load changes. That is, by applying a pulse signal to the motor, it will rotate by a step angle.
Step motor components for roller shutter doors are used to control the angle for the purpose of operation. Step motors are a category of motors that cannot be used like standard DC or AC motors under normal circumstances. They must be composed of a control system including double-loop pulse signals and power drive circuits before they can be used.
The tubular motor, strictly speaking, is not a motor. It is actually a structure composed of a motor and some devices that can perform certain functions, including a motor and other components.
Roller shutter components consist of 13 parts, including curtain panels, seat plates, guide tracks, control boxes, roller doors, brackets, drums, housings, limit switches, door lintels, manual quick release switches, button switches, and associated devices. Roller shutter accessories are also categorized into steel roller shutter components, Australian noise-reduction roller shutter components, latticed roller shutter components, aluminum alloy profile roller shutter components, European roller shutter components, and sliding gate components, among others.
Generally installed in areas where wall partitions are not feasible, details determine success or failure, and the accessories of roller shutters also determine the overall effect and usage of the roller shutters.
