releaseTime:2024-08-23 10:18:12source:Mu TiannumberOfPageViews:0
The temperature control mechanism of wire rope electric hoists during continuous operation usually involves the following aspects:
1、 Motor temperature control
Motor temperature operation mode:
The motor in electric hoists is usually equipped with temperature protection function. This function monitors the temperature of the motor and takes corresponding protective measures such as shutdown or alarm when the temperature exceeds the set value to prevent motor overheating and damage.
The specific implementation method may include setting the mode of motor temperature protection (such as P570 parameter), parameterizing the functional objects that need to be monitored, and defining the input of motor thermal protection through digital inputs (such as P204).
Variable frequency control:
In some advanced electric hoist systems, a frequency converter may be used to control the operation of the motor. The frequency converter can monitor the operating status of the motor in real time, including parameters such as current, voltage, and temperature.
When the motor temperature approaches or exceeds the safety threshold, the frequency converter will automatically adjust the output power of the motor or stop the motor operation to avoid overheating.
2、 Heat dissipation design
Heat dissipation structure:
The motor and other heating components of electric hoists usually have specialized heat dissipation designs, such as heat sinks, fans, etc., to ensure timely dissipation of heat during continuous operation.
The design of the heat dissipation structure should take into account the working environment and load conditions of the electric hoist to ensure good heat dissipation under various conditions.
Lubricating oil:
The transmission components in electric hoists, such as gears and bearings, require regular addition and replacement of lubricating oil. Lubricating oil not only has a lubricating effect, but also helps with heat dissipation, reducing friction and wear between components.
During continuous operation, it is necessary to ensure sufficient and clean lubricating oil to avoid overheating caused by poor lubrication.
3、 Overload protection
Overload monitoring:
Electric hoists are usually equipped with overload protection devices to monitor the load condition of the motor. When the load exceeds the rated carrying capacity of the motor, the overload protection device will automatically cut off the power or reduce the output power to prevent the motor from overheating and damage.
Weight limiter:
Some advanced electric hoists are also equipped with weight limiters for real-time monitoring of the weight of objects on the hook. When the actual lifting weight exceeds the set value, the lifting weight limiter will automatically cut off the lifting power supply, but allow the mechanism to make a downward movement, thereby protecting the electric hoist from overload damage.
4、 Operation and maintenance
Operating procedures:
Operators should strictly follow the operating procedures of electric hoists and avoid using them in environments that are not allowed or when the rated load is exceeded.
During use, attention should be paid to observing the operating status of the electric hoist. If any abnormal situations are found, the machine should be stopped and checked in a timely manner.
Regular maintenance:
Regularly maintain and upkeep the electric hoist, including checking the operating status of the motor, transmission components, lubrication system, etc., timely replacing damaged components, and adding lubricating oil, etc.
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