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The structural composition of electric hoist
Release time:
2025-11-27
Electric motor: As a power source, three-phase asynchronous motors or conical rotor motors are usually used. The conical motor integrates braking function and achieves rapid braking through spring pressure when power is cut off, providing higher safety.
Electric motor: As a power source, three-phase asynchronous motors or conical rotor motors are usually used. The conical motor integrates braking function and achieves rapid braking through spring pressure when power is cut off, providing higher safety.
Reducer: By using gear transmission (planetary gears or worm gears) to reduce motor speed, increase output torque, and ensure smooth lifting. Some models use fixed axis external gear transmission.
Drum: used for winding steel wire ropes or chains, directly carrying heavy objects. The wire rope type is suitable for long-distance lifting, while the loop chain type has a compact structure and is suitable for short distance operations. When the lifting height is high, the drum may be lengthened and equipped with a rope guide to prevent rope entanglement.
Hook: a key component that connects heavy objects and meets load requirements. Some parts are designed to rotate to adjust the lifting angle.
Walking mechanism: including the running mechanism of large vehicles (moving laterally along the track) and small vehicles (moving longitudinally), which is driven by motors to achieve positioning through gears or wheel sets. Heavy duty electric motors may be equipped with two wheeled carts or two sets of operating mechanisms to enhance stability.
Electrical system: including control box, controller (button or remote control), flexible cable introducer, etc., using low voltage control to improve safety. Overload protection and precise control are achieved through magnetic contact pressure gauges, limit switches, etc.
Braking system: including electromagnetic brakes, mechanical brake discs, etc., to ensure that heavy objects will not accidentally fall when power is cut off or stopped. The self-propelled design of a conical motor is a typical solution.
Overload protection and limiter: prevent overload through overflow regulating valve, clutch or electronic sensor, and limit the limit position of hook lifting.
Shell and frame: The aluminum alloy shell combines lightweight and sealing properties to protect internal components from environmental impacts.
Connectors and bearings: gears, shafts, bearings, etc. ensure the reliability and mechanical efficiency of the transmission system.
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