The lifting mechanism of CD and MD electric hoists is their core component and plays a crucial role in achieving efficient and safe lifting of materials. The following is a detailed explanation of these two types of electric hoist lifting mechanisms:

CD type electric hoist lifting mechanism

Construction features:

The lifting mechanism of the CD type electric hoist mainly consists of an electric motor, a reducer, a drum device, a hook device, etc.

Electric motors typically use conical rotor motors to adapt to frequent direct starting during intermittent operation.

The reducer may use a spur gear planetary transmission mechanism or a helical gear three-stage reduction depending on the lifting height.

working principle:

When the electric motor is powered on, the rotor of the motor moves to the right, the brake opens, and the drum rotates through the reducer.

The rotation of the drum causes the steel wire rope wound around it to drive the hook device up or down, achieving the lifting or lowering of materials.

When the power is cut off, the motor rotor moves to the left, the brake closes, causing the drum to stop rotating and achieve material stopping or positioning.

Classification and characteristics:

CD1 type: single speed lifting, suitable for intermittent work under general working conditions.

The lifting speed of the CD type electric hoist is relatively stable and belongs to the constant speed mode.

Technical parameters:

The work level is M3 (medium), which means that the lifting frequency should not exceed 120 times per hour and the lifting time should not exceed 30 minutes each time.

The lifting height varies depending on the specific model and application scenario. For example, when the lifting height H=6m, a claw type coupling is used to connect the motor shaft and the input shaft of the reducer; Add intermediate shaft and rigid coupling when H ≥ 9m; When H ≥ 18m, a support frame is provided to enhance the rigidity of the intermediate shaft.

MD type electric hoist lifting mechanism

Structural features:

The MD type electric hoist is similar in structure to the CD type, but has a dual speed lifting function, which includes two gears: normal speed and full speed.

The lifting motor of the MD electric hoist adopts a dual electric unit, including the main lifting motor and the slow speed lifting motor.

working principle:

When the main lifting motor is working, the slow lifting motor is in a braking state without being powered on, achieving constant speed lifting.

When the slow lifting motor is working, the slow driving device drives the main lifting conical rotor to rotate, achieving full speed lifting.

Features and applications:

The MD type electric hoist is suitable for occasions with high precision position or speed requirements, such as assembly lines or production lines that require fine control.

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