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Elevator geared traction machine SN-TMYJ220
The Geared Traction Machine is a traditional yet reliable drive system used in elevator applications, particularly suited for low- to mid-rise buildings with moderate speed requirements. Unlike gearless systems, it incorporates a gearbox to amplify torque, making it a cost-effective solution for many commercial and residential applications.
Electric Motor: Typically an AC or DC motor providing rotational power to the system.
Gearbox: Reduces motor speed while increasing torque through a worm-and-wheel or helical gear arrangement.
Traction Sheave: Drives the elevator ropes (steel cables) to move the cab and counterweight.
Braking System: Includes mechanical brakes that engage during stops or emergencies.
Control System: Governs acceleration, deceleration, and floor-leveling precision.
The motor rotates at high speed, and the gearbox reduces this speed while multiplying torque. The output shaft then turns the traction sheave, which moves the elevator via friction between the ropes and the sheave grooves. The gearbox allows smaller, less expensive motors to handle heavier loads effectively.
Cost-Effective: Lower initial cost compared to gearless machines.
High Torque Output: Suitable for heavy loads (e.g., freight elevators).
Proven Reliability: Long-standing technology with well-understood maintenance needs.
Lower Efficiency: Gear friction causes energy losses (~70-80% efficiency).
Higher Maintenance: Requires regular lubrication and gear inspections.
Noisier Operation: Gear engagement produces more vibration and sound.
Low- to mid-speed elevators (≤2.5 m/s).
Budget-conscious projects where gearless systems are unnecessary.
Frequent gear oil changes.
Bearing and brake inspections.
Rope tension adjustments.
· 1:1-1000~1500Kg,1.0~2.0m/s
· Max.Load of traction sheave shaft:6100Kg
· Control:VVVF
· Brake:DC110V,1.1A
· Weight:700Kg
· Sheave position:Right
Roping | Load(kg) | Speed(m/s) | Sheave Diam-Rope Diam x Groove No.-Groove Pitch (mm) | Power(Kw) | Ratio | Hz | Pole |
Speed (r/min) |
Current(A) |
1:1 | 1000 | 1 | Ø550-Ø13x5-20 | 11 | 55:2 | 50 | 6 | 954 | 24 |
1000 | 1.25 | 15 | 55:2 | 39 | 4 | 1193 | 28 | ||
1000 | 1.5 | 15 | 55:2 | 48 | 4 | 1432 | 28 | ||
1000 | 1.6 | Ø610-Ø13x5-20 | 15 | 55:2 | 46 | 4 | 1377 | 28 | |
1000 | 1.75 | 18.5 | 55:2 | 51 | 4 | 1506 | 34 | ||
1000 | 2 | 18.5 | 55:2 | 60 | 4 | 1722 | 35.5 | ||
1250 | 1 | Ø550-Ø13x5-20 | 13 | 55:2 | 50 | 6 | 954 | 28 | |
1500 | 1 | 15 | 55:2 | 50 | 6 | 954 | 28 |