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What Is The Development Trend Of Elevator Technology
Jan 07, 2018

The development trend of elevator technology.

    1、environmental protection. Today the world is very clearly aware of the relationship between survival and development: not environmental protection can not survive, there is no development at all. Green concept in the world has been deeply rooted, green concept is the general trend of elevator development. Some experts predict "who first launched green products and seize the market, who will grasp the market competition initiative." 

    The main development trends are as follows: Continuous improvement of product design, production of environmentally friendly low energy consumption, low noise, no oil leakage, no leakage, no electromagnetic interference, no shaft rail grease pollution of the elevator. Elevator traction using nylon synthetic fiber traction rope, steel belt, such as no lubricant pollution traction. Elevator decoration will be used without (less) environmental pollution materials. Elevator no-load rise and full load downward motor regeneration power generation recovery technology. Installation of elevators will not require the installation of hand and foot racks. Elevator parts in the production and use of the environment has no impact (such as brake leather must not use asbestos) and materials can be recycled.

     2、 the drive system uses the permanent magnet synchronous tooth-free traction machine. As the permanent magnet synchronous brushless traction machine with the traditional worm gear, worm drive compared with the following advantages: a permanent magnet synchronous no-tooth traction machine is a direct drive, there is no worm gear, worm transmission pairs, permanent magnet synchronous motor is not used as an asynchronous motor is required to occupy the place of the stator coil, The main material of permanent magnet synchronous motor is high energy density high residual magnetic induction and high coercivity of ND-FE-B, its air gap magnetic density generally reaches more than 0.75T, so it can achieve small size and light weight. b High transmission efficiency. Due to the use of permanent magnet synchronous Motor Direct Drive (no worm gear pair) its transmission efficiency can improve 20%~30%. c) Permanent magnet synchronous non-toothed traction machine because there is no noise of the bearing during high speed operation and the noise of worm gear pair contact Drive, the noise of the whole unit can be reduced 5~10db (a). D Low energy consumption. From the working principle of permanent magnet synchronous motor, it is known that excitation is realized by permanent magnet, and no additional excitation current is needed in the stator, so the power factor of the motor can reach very high (theoretically can reach 1). At the same time, permanent magnet synchronous motor has no current through the rotor, and there is no problem of rotor depletion. Generally lower 45%~60% wear than asynchronous motors. Because there is no efficiency low, high energy consumption worm gear transmission pair, power loss further reduced. (e) Permanent magnet synchronous non-toothed traction machine because there is no tooth profile wear problem and do not need to replace lubricating oil regularly, so its service life is long, and basic maintenance. In the near future, if the production of permanent magnet synchronous motor costs can be resolved as soon as possible, permanent magnet synchronous brushless traction machine will be replaced by the Worm Gear Drive auxiliary asynchronous motor of traction machines. 

    Of course, the future of superconducting electric drag technology and magnetic levitation drive technology will also be used in elevators.



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