Abstract：Elevator door operator, which is a responsible for the elevator hall car door opening and closing institution, when the elevator opened, closed signal, the elevator door operator through the built-in control system control to open the door motor, the motor torque into a certain direction of force, close or open the door. When the closing force of the door is greater than 150N, the door operator will automatically stop closing the door and reverse open the door to play a certain degree of closing protection. In this blog, you will learn some knowledge about the elevator door operator and get to know some related products.
The main content of this article:
When we look at the recent history of automatic elevator doors, it is seen that the operators of cabin doors have undergone a great evolution. This evolution shows itself on both the mechanical and electronic equipment of the door operator, which is an electro-mechanical system.
The needs and expectations that started the evolution process from the old-type door operators to the new-type door operators can be listed as working safety, performance, efficiency, size, easy installation and door maintenance. Although many studies were done in line with these needs in the past, it can be noted that different studies have been conducted for similar purposes today. From the past to the present, it is not possible to say that the needs and expectations for door operators have changed much. In fact, it is the solutions offered to these expectations and needs that change over time. The differentiation of the solutions offered to similar expectations over time can be considered as the evolution of the door operators. The main factor that ensures the continuity of this differentiation is the technological innovations that can be applied to the door operator.
The evolution of door operators can be examined separately under two different disciplines, mechanically and electronically. In the context of mechanical change, it can be noted that the old-type door operators, consisting of a typical slider-crank mechanism, are transformed into new-type operators with a simple belt-pulley system. The main function of the door operators is to provide the movement of the door panels by converting the circular motion of the electric motor into linear motion. A speed-position graph of this movement must be like a curve figure, to show that the door is operating smoothly. This speed-position curve can be obtained mechanically in older-type door operators. That is, even if the electric motor of the slider-crank mechanism is driven at a constant speed, the speed of the door panels will vary according to the position of the door, due to the structural feature of the mechanism. Therefore, a simple electronic structure, instead of complex motor drivers and control systems, meets the need for older operators. Despite the simplicity of the electronic equipment of the old-type operators, their disadvantages — such as a high number of mechanical parts, the heavy weight of the operator, difficult set-up and adjustment, and the need for more maintenance — force mechanical changes to the door operators.
The new-type elevator door machine operator consists of a mechanically simple belt-pulley system. This simple system converts the circular motion of the motor into linear motion and directly transmits it to the door panels. There is a constant ratio between the speed of the motor and the speed of the door panels. In other words, how a profile creates the changes of the motor speed over time, the speed of the door panels, in accordance with the door position, will show the same profile as the shape. For this reason, achieving a comfortable, smooth door movement with the new type of operators depends on the comfortable driving of the door motor. Thanks to motor and drive technologies that meet this need, the mechanical evolution of the old-type operators can be realized, and the complex slider-crank mechanism has been replaced by simple belt-pulley system. The new system reduces the dimensions of the operators, makes installation and setting into operation easier, and reduces maintenance requirements.
After a long period of evolution, more and more types of elevator door operators appear in our lives. So, what’re the basic types of it?
Unless you’re in the elevator business, when you hear the words “elevator door operator,” you are likely to think of a guy in a suit who rides and controls the elevator in a fancy hotel. Well, that’s where it started, but today it is a system of motors, gears, and levers that opens and closes thousands of times a day.
The technology of the door operator has experienced the development of a mechanical door operator, frequency conversion door operator, and permanent magnet synchronous door operator.
Ac asynchronous frequency conversion door operator is usually referred to as a frequency conversion door operator for short. There are two kinds of motion control modes of elevator: speed switch control mode and encoder control mode. The speed switch control method cannot detect the movement direction of the car door, position and speed, can only use position and speed open-loop control, lead to relatively poor control accuracy and the smoothness of the movement process of the crane is not so good, so use more"encoder control mode".
Compared with the frequency converter, the PMSM upgrades the ac asynchronous motor to the PMSM. Permanent magnet is a way of motor excitation; frequency conversion is the control way of motor speed change. That is to say, the frequency conversion door operator emphasizes that the control part of the door operator is the frequency conversion control, while the permanent magnet synchronous door operator emphasizes that the door operator motor is the permanent magnet motor. Variable frequency technology and permanent magnet synchronous technology are complementary.
Apart from these basic elevator door operator technologies, there are another more advanced door operator technologies, such as the closed loop elevator door operator.
A closed-loop elevator door controller is a microprocessor that controls the precise speed and location of the doors at all times. Analog systems are subject to power fluctuations and people pushing.
A closed-loop system monitors all of these factors and compensates for these changes. The computer is able to sense the precise position and speed of the door much better than a simple mechanical system.
In short, a computer keeps track of what the door is doing and where it is at all times, making the subtle changes needed to reduce stress on the elevator door operator parts. With a number of gear, joints, levers, and more, smoothing out the rough patches can reduce the number of service calls.
The reality is that a closed-loop door operator represents the peak of technology and it appears that there won’t be improvements to eclipse current styles for decades.
They also aren’t cheap. The top of the line designs will cost money, but the savings in service calls and downtime will make up a lot of the price over time.
They are a significant long-term investment that you’ll be able to hold onto through a full modernization.
This upgrade can save hundreds of service calls and thousands of lost hours merely by improving this one part of the elevator door.
Since the lift door operator represents 70% of all elevator service calls, even a 50% improvement can make significant changes in the usefulness of the elevator.
Using a closed loop elevator door operator:
Ensures that the door is fully open or fully closed as needed.
Prevents the door from trying to close a people are walking through it.
Keeps the door from cycling repeatedly.
Allow the door to cycle completely.
Is much safer by ensuring the door is fully closed while the elevator is in motion.
In many buildings, specifically with newer construction, this upgrade has already happened. In many older buildings, particularly residential buildings with only a single elevator, the tenants are still dealing with constant service calls.
Installing a closed loop elevator door system doesn’t take a great deal of time, but it can prevent many, many elevator failures and much frustration on the part of residents. In condominium buildings, this is a change that is long overdue and will save a lot of time, money, and hassle in the long run.
Just like its name sounds, the elevator door operator opens and closes the doors to an elevator at every level all day and night. It has more moving parts than just about anything else in the elevator.
It consists of a motor on top of the elevator that turns gears. The gears are attached to lever arms inside the doors. The motor will open and close the doors regularly.
One of the most important functions of the complete elevator door operator system is the smooth and safe operation of the car and hoistway door package. The doors need to be hung square, plumb and level. They need to be free of all mechanical binds, dirt and oil. The rewards of a good quality installation will be fewer callbacks and a reduction in maintenance expenses. This will increase the life of the doors and door operator and provide many years of trouble-free service for both the customer and the elevator maintenance company.
Elevators use two different sets of doors: doors on the cars and doors opening into the elevator shaft. The doors on the cars are operated by an electric motor, which is hooked up to the elevator computer.
The electric motor turns a wheel, which is attached to a long metal arm. The metal arm is linked to another arm, which is attached to the door. The door can slide back and forth on a metal rail.
When the motor turns the wheel, it rotates the first metal arm, which pulls the second metal arm and the attached door to the left. The door is made of two panels that close in on each other when the door opens and extend out when the door closes. The computer turns the motor to open the doors when the car arrives at a floor and close the doors before the car starts moving again. Many elevators have a motion sensor system that keeps the doors from closing if somebody is between them.
The car doors have a clutch mechanism that unlocks the outer doors at each floor and pulls them open. In this way, the outer doors will only open if there is a car at that floor (or if they are forced open). This keeps the outer doors from opening up into an empty elevator shaft.
In a relatively short period of time, elevators have become an essential machine. As people continue to erect monumental skyscrapers and more small buildings are made handicap-accessible, elevators will become an even more pervasive element in society. It is truly one of the most important machines in the modern era, as well as one of the coolest.
As a leading elevator components company in the world, Faweilai is committed to producing and designing any advanced elevator products you need.
We found that the ordinary lift door operator on the market has the problems of the long opening of closing times and loud opening noises. In order to solve this problem, Faweilai insists on the independent development of inverters and motors and uses rare earth permanent magnet synchronous technology to make the door operator run more efficiently, reduce noise and reduce door opening time.
At the same time, due to technology upgrades, the motor is much smaller and saves door operator space. Therefore, the price is cheaper and the cost performance is higher. The AC PM door operator will be the trend in the future.
Dual-motor closed-loop vector control / synchronous belt drive.
Safe and reliable
Double door knife and double door lock, optional integrated car door lock synchronous door knife.
Using rare earth permanent magnet motor technology and variable frequency speed regulation technology.
Strong drag force
Dual motor drag, the maximum load reaches 400kg.
Adapt to high-rise civil construction errors, high-speed elevator sway, and wind pressure.
Smooth, efficient, low noise, fast response.
Compared with other brands, Faweilai has a great advantage:
Elevator door opening hours
Elevator door closing hours
Door opening distance
According to different requirements, there are many different lift door operators, which can provide different performance options.
Faweilai 2 Panels Center Opening Elevator Door Operator
They use PM motor, have a green environmental protection effect and superior performance; Integrated car door lock synchronizing door coupler, debugging is simple; They have multiple installation ways and smooth operations.
4 Panels Center Opening Elevator Door Operator
They use reinforced type PM motor, have a green environmental protection effect and superior performance; Integrated car door lock synchronizing door coupler, debugging is simple; They have reinforced guide rall structrues.
Side Opening Door Operator
The side opening door operators use new thin PM motor, have a green environmental protection effect, and superior performance; Integrated car door lock synchronizing door coupler, debugging is simple; They have multiple installation ways and smooth operations.
As a wholly-owned subsidiary of Canny Elevator Co., Ltd., Hangzhou Faweilai Technology Co., Ltd. is a modern enterprise integrating the development, design, production and sales of elevator core components. We have many elevator products you need, welcome to visit our website https://www.faweilaitech.com/ for more information. If you have any needs or questions, you can contact us by Email: email@example.com.