Geared Machine
Geared traction machines are integral to modern elevator systems with the following key attributes:
Functionality: They use gears to control elevator car movement via ropes or cables attached to the car and counterweight.
Speed and Capacity: Suitable for medium to high-rise buildings, they accommodate varying speeds and capacities based on design and usage needs.
Motor Location: Typically housed above the shaft in a dedicated machine room; newer designs may integrate the motor within the hoistway (MRL).
Gear Types: Employ reduction gears to ensure smooth, controlled movement between floors.
Applications: Commonly installed in commercial buildings, hotels, and residential complexes requiring medium to high-speed elevators.
Maintenance: Regular upkeep, including gear lubrication and cable inspection, is essential for optimal safety and performance.
Geared traction machines offer efficient vertical transportation, with adaptable design and performance capabilities to suit diverse building types and elevator requirements.
Gearless Machine
The gearless motor, a cutting-edge advancement in elevator technology, utilizes Permanent Magnet Synchronous Motor (PMSM) technology, which offers significant technical advantages:
Efficiency: PMSM employs rare-earth permanent magnets with high magnetic flux density, eliminating the need for magnetizing current. This enhances control efficiency and saves energy.
Compact Design: The motor is designed with a short length and large diameter, making it compact and lightweight. This allows for installation in smaller spaces compared to traditional motors.
Noise Reduction: It operates quietly, providing a smooth and quiet ride experience, enhancing passenger comfort.
Smooth Ride Quality: Offers superior smoothness in operation, ensuring a comfortable ride for passengers.
Energy Savings: Due to efficient control and reduced energy consumption, it contributes to overall energy savings in elevator operations.
The gearless motor based on PMSM technology is increasingly favored in the elevator industry for its advanced features that enhance performance, energy efficiency, and passenger comfort.
