The internal structure of a wire rope electric hoist is engineered to efficiently lift and lower heavy loads while ensuring safety and reliability. Here’s a breakdown of its key components and their functions:

1. Power System

Electric Motor:

Typically a three-phase AC or DC motor, providing rotational power.

Mounted within a protective housing to prevent debris ingress.

Gearbox/Transmission:

Reduces the motor’s high speed to a lower, torque-rich output for the drum.

Uses gears, shafts, and bearings to transfer power efficiently.

2. Lifting Mechanism

Wire Rope Drum:

Cylindrical component around which the wire rope winds/unwinds.

Features grooves to guide the rope and prevent slippage.

Wire Rope:

Constructed of multiple stranded wires (e.g., 6x19 or 6x37 configuration) around a fiber or steel core.

Designed to withstand tension, bending, and abrasion.

Bearings:

Support the drum’s rotation and reduce friction.

3. Braking System

Electromagnetic Brake:

Engages automatically when power is off, holding the load securely.

Uses friction pads to clamp the drum or motor shaft.

Manual Release:

Some brakes include a lever to disengage manually for maintenance.

4. Frame/Housing

Steel Structure:

Provides rigidity and supports all internal components.

Often includes mounting holes for installation.

Protective Covers:

Shield gears, brakes, and the drum from environmental damage.

5. Control System

Electrical Panel:

Houses contactors, relays, and overload protection.

Manages power distribution to the motor and brake.

Operator Interface:

Pendant control, remote, or push-button station for raising/lowering.

Includes emergency stop (E-stop) for immediate shutdown.

Limit Switches:

Prevent over-travel by cutting power at upper/lower limits.

6. Safety Features

Overload Protection:

Sensors or mechanical devices detect excess load and halt operation.

Rope Guides:

Direct the wire rope to avoid contact with structural parts.

Hook Safety Latches:

Prevent accidental load disengagement.

7. Additional Components

Couplings:

Connect the motor to the gearbox, allowing torque transmission.

Lubrication Points:

Bearings, gears, and drum shafts require periodic greasing.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment