The optimization design of the motor and gear for the wire rope electric hoist can be discussed in detail from the following aspects:

1、 Motor optimization design

Motor type selection

Wire rope electric hoists usually use motors with brakes to ensure rapid braking in the event of a power outage and prevent heavy objects from falling.

Select the appropriate type of motor based on the lifting capacity, lifting speed, and working system, such as a conical rotor asynchronous motor or a disc brake motor.

Power Calculation and Selection

Calculate the steady-state average power of the electric motor based on the lifting load, lifting speed, and overall efficiency of the mechanism.

Considering the intermittent periodic working mode of the motor (such as the S3-40% working mode specified in IEC-72), an appropriate power margin should be selected to ensure that the motor does not overload during long-term operation.

Heating and overload verification

Calculate the power continuity rate of the electric motor to ensure that it does not overheat during its working cycle.

Perform overload verification to ensure that the motor can still operate safely under maximum load.

control system design 

Design a reasonable control system, including the implementation of functions such as motor start, stop, speed regulation, and braking.

Introducing advanced technologies such as frequency converters to achieve stepless speed regulation of motors, improving operational stability and energy-saving effects.

2、 Gear optimization design

Selection of transmission scheme

Choose a suitable transmission scheme based on the transmission ratio, spatial layout, and cost requirements of the electric hoist, such as spur gear transmission, planetary gear transmission, etc.

Gear parameter design

Determine the basic parameters of gears such as module, number of teeth, pressure angle, etc., to ensure smooth transmission, low noise, and long service life.

For heavy-duty transmission, high-strength alloy steel materials can be used and heat treated to improve the load-bearing capacity and wear resistance of the gears.

Gearbox design

Design a reasonable gearbox structure to ensure the accuracy and stability of gear transmission.

Introduce lubrication methods such as oil bath lubrication to reduce tooth wear and friction loss.

Strength and lifespan verification

Perform strength verification on the gear to ensure that it will not fracture or wear excessively under maximum load.

Conduct fatigue life analysis based on usage conditions and lifespan requirements to ensure the reliability of the gearbox during long-term use.

3、 Comprehensive optimization design

Overall layout optimization

Optimize the overall layout of the electric hoist to ensure compact and reasonable connections between components such as the motor, gearbox, and drum.

Considering the convenience of installation and maintenance, design reasonable inspection ports and passages.

Intelligence and automation

Introduce intelligent components such as sensors and controllers to achieve remote monitoring, fault diagnosis, and automatic adjustment of electric hoists.

By using IoT technology, electric hoists can be integrated into the production management system of enterprises to achieve intelligent management of the production process.

Environmental Protection and Energy Conservation

Adopting low-noise and low-energy motors and transmission systems to reduce environmental impact.

Optimize the working mode of electric hoists, such as adopting intermittent working system, intelligent speed regulation, etc., to reduce energy consumption.

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