Five Development Trends of Elevator Technology: Environmental Protection

1, environmental protection. The world today understands very clearly the relationship between survival and development: if we do not have environmental protection, we cannot survive. Without survival, we cannot speak of development at all. The concept of green has been deeply rooted in the world, and the green concept is the general trend of elevator development. Some experts predict that "who will be the first to launch green products and seize the market, anyone will have the initiative in market competition." The main development trends are as follows: continuous improvement of product design, production of environmentally friendly low energy consumption, low noise, no oil spills, no water leakage, no electromagnetic interference, no hoistway rail pollution of the elevator. The elevator traction uses nylon synthetic fiber traction ropes, steel belts and other lubricating oil-free traction methods. Elevator installations will use no (less) environmental pollution materials. Elevator no-load rise and full-load downlink motor regeneration power generation recovery technology. Installing the elevator will eliminate the need to install a scaffold. Elevator parts have no impact on the environment during production and use (for example, brake pads must not use asbestos) and materials can be recycled.

2. The drive system uses a permanent magnet synchronous gearless traction machine. Compared with the traditional worm gear and worm drive traction machine, permanent magnet synchronous gearless traction machine has the following advantages: a) permanent magnet synchronous gearless traction machine is a direct drive, no worm gear, worm drive pair, permanent magnet synchronization The motor does not need to occupy the stator windings that are required for the asynchronous motor, and the main material for making the permanent magnet synchronous motor is high energy density high remanence induction and high coercivity NdFeB, and the air gap magnetic density is generally 0.75T. Above, it can be made small and light. b) High transmission efficiency. Due to the direct drive of the permanent magnet synchronous motor (without worm gear drive), the transmission efficiency can be increased by 20% to 30%. c) permanent magnet synchronous gearless traction machine Since there is no noise generated by the bearing when an asynchronous motor runs at high speed and there is no noise when the worm gear and the worm gear are in contact with the drive, the noise of the whole machine can be reduced by 5 to 10 db(A). . d) Low energy consumption. From the working principle of the permanent magnet synchronous motor, it can be known that the excitation is realized by a permanent magnet, and the stator does not need to provide an additional excitation current, so the power factor of the motor can be very high (in theory, it can reach 1). At the same time, no current passes through the rotor of the permanent magnet synchronous motor, and there is no problem of rotor wear. Generally lower than the asynchronous motor loss of 45% to 60%. Because there is no low efficiency, high energy consumption worm gear drive, energy consumption is further reduced. e) The permanent magnet synchronous gearless traction machine has long service life and basically does not require maintenance because it does not have tooth profile wear problems and does not require periodic replacement of the lubricating oil. In the near future, if the problem of the cost of producing permanent magnet synchronous motors can be solved as quickly as possible, the permanent magnet synchronous gearless traction machine will replace the traction machine composed of the worm gear worm drive auxiliary asynchronous motor. Of course, superconducting force drag technology and magnetic levitation drive technology will also be applied to elevators in the future.

3. The elevator industry will be informatized and networked. How the elevator control system is combined with network technology will be the main trend of elevator design in the future. In the 21st century, how to provide users with satisfactory products and services has become a matter of life and death. Elevator access to the Internet to ensure that customers provide better quality services. In the future, major brand manufacturers will establish their own elevator website (elevator-specific platform) in the public network system for survival and development. This is also a necessary way. The elevator Internet access is mainly to achieve the following functions: a) All elevators are supervised by the network and guaranteed. The safe operation of the elevator ensures passenger safety. When the elevator fails, the elevator sends a signal to the customer service center through the network so that the maintenance personnel can accurately understand the cause of the elevator failure and related information in a timely manner. Whether the customer's personal safety is threatened, and rushed to the accident site in the first time Emergency repairs, while comforting the passengers in the elevator through the network, minimize the negative impact of elevator failures. It is also possible to automatically scan every elevator component in a specified time through the elevator network to detect hidden accidents and accomplish prior maintenance, reduce downtime and improve service quality. b) Elevator online trading (elevator business website). Nowadays, the traditional marketing system is person-to-person sales (or face-to-face sales). Due to the large number of sales personnel, the cost of sales is high. If you spread media via the elevator business website, you can greatly reduce the cost of sales. You can display your product's features, functions, shape and size, as well as the required civil dimensions. If you fill in your project related data on the Internet, it will automatically calculate the elevator flow, and provide N elevator configurations (including elevator type, load, speed, number of stops, waiting time, running time) based on the calculation results. User choice. If the user needs can also immediately get quotes for each program, you can also sign the online sales contract, through online banking payment payment, thus completing the purchase and sale contract. Of course, you can also download any information you think is useful on the Internet for future purchase. c) Use the network's fast and accurate features to reduce production costs. After China's accession to the WTO, various companies (especially joint ventures, foreign-funded enterprises) are inevitably required to reduce costs and global procurement, and to avoid being affected by various unfair means in the procurement process. The use of elevator website bids and bids can ensure that procurement is cost-effective. The elevator components are very inexpensive to operate. It is also possible to connect all the purchased parts production plants and supporting plants of the designated sites through the network. After receiving the orders, the manufacturers can quickly and accurately provide the purchased parts through the arrangement of production schedules and parts production and distribution tables by the technical department. The production plant and the supporting plant shall issue production instructions and instruct the place of delivery (usually to reduce the return freight from the production plant to the assembly plant to the construction site and transport it directly to the construction site). At the same time, it will notify the professional installation team approved by the manufacturer to enter the site to install electricity. (Help) ladder. After the installation is completed, the installation team applies for acceptance to manufacturers and relevant government agencies on the Internet. In short, many tasks from sales to installation and after-sales service can be completed through the network, and the cost is low, fast, accurate and the service quality is good.

4, Bluetooth technology in the elevator application. Everyone who has installed an elevator knows that it is time-consuming, labor-intensive, and extremely error-prone work to put lines and lines. If the control screen and the summoning system are connected via Bluetooth technology to achieve wireless summoning, it will be another revolution in elevator control and at the same time it will bring great benefits to us. a) The installation period will be reduced by more than 30%. Its direct benefit is to reduce the installation cost. The customer also reduces the cycle cost from the time of booking to use the elevator and increases the cash flow rate. b) The use of Bluetooth technology in elevators will surely make the elevator control system use the latest and fastest microcomputers. This will further increase the reliability of the elevators, greatly reduce the failure rate, and further improve the control accuracy. The result is more elevators. Comfortable, more accurate leveling. At the same time, this will also make it possible to check the status of elevators through the Internet in the future. In particular, prior maintenance of elevators can be better and more comprehensive, and it will further accelerate the access of elevators to the Internet. c) The transformation of old ladders will be easier and the time and cost will be reduced. According to the statistics table, there will be 50,000 old ladders entering the renovation and transformation market every year. The use of this technology will produce huge social benefits and business benefits. I believe any company will not give up this opportunity. e) Well resolved the compatibility and connection between elevator control and peripheral equipment. In particular, elevators and escalators can be integrated into building management systems or intelligent management cell systems.

5. In the development of elevators to high technology, we have also clearly realized that China's per capita income is low, and it is particularly sensitive to prices. Under this special environment, the market urgently needs simple and reliable popular elevators. In the future, such elevators will account for more than half of the total elevator demand in China. The characteristics of this type of elevator are: The elevator configuration meets the minimum requirements, but the price is very low, the failure rate is very low, the reliability is high, and it is durable. In the service life, there is basically no maintenance, and it is easy to use. The development direction of this type of elevator technology is mainly: a) The application of high-tech and new materials in the production of elevator components. If you add high-tech paint on the surface of components, the service life will be greatly extended. The elevator is controlled by an inexpensive, highly reliable, popular type computer instead of an elevator-specific electronic board with a low price and high reliability. b) Improvement of production process. The process improvement of parts and components makes the product price lower and more durable at the same time. Production process and method change. This kind of elevator production method can be used in the same way as modern large-scale automobile production methods and adopts an assembly line production method. And the output is high, with an annual output of 4 to 50,000 elevators. c) Use large quantities of standard parts. Almost all parts of this type of elevator can be purchased in the market.