With the continuous development of the cold chain warehousing industry, the demand for cargo handling in low-temperature cold storage continues to increase. It is difficult for electric forklifts used in conventional room temperature scenarios to adapt to the special environment of cold storage, and they are prone to various problems such as power attenuation, parts corrosion and stagnation, which affect normal operation efficiency. Only by doing a good job in adaptability selection and matching with standardized daily operation and maintenance can electric forklifts play a stable operational value in cold storage scenarios.
The first is the key points of power system adaptation. The ambient temperature of cold storage is generally lower than 0 degrees Celsius, and the operating temperature of some deep cold storage can reach minus 20 or 30 degrees Celsius. The activity of ordinary power cells will decrease rapidly with the temperature drop, and it is easy to have problems such as battery life and unstable discharge. When selecting a model, priority should be given to choosing a power module that has been specifically adjusted for low temperature scenarios, and a temperature-controlled thermal insulation heating component with corresponding power should be matched to ensure that the power system can maintain a stable discharge efficiency in a low temperature environment. Avoid accidental power outages during operation. Do not choose a general-purpose electric forklift that is only marked for room temperature use and directly put it into cold storage operations.
Secondly, the main points of protection for the body structure and parts. The humidity inside the cold storage is high, and the surface of the body is prone to frost and condensation when the temperature difference between the equipment and the equipment is large. Ordinary unprotected circuit interfaces and exposed metal parts are prone to rust and short-circuit failures. When selecting the model, it is necessary to focus on verifying the sealing level of the electrical components of the whole body. All metal stressed parts must be specially treated for anti-rust. Moving parts such as gantries, wheel groups, and control links should be replaced with antifreeze lubricating media for adaptation to avoid grease solidification at low temperatures, which will cause parts to get stuck and affect normal operation. At the same time, attention should also be paid to the low temperature resistance of hydraulic pipelines to prevent potential safety hazards caused by pipeline brittleness cracking at low temperatures
Finally, the key points of human-machine interaction adaptation. Cold storage operators generally wear heavy cold protection equipment, and the range of physical activity is limited. When selecting models, pay attention to the spacing of control components and the redundant space around the seat. Do not choose styles with too compact operation layout to avoid operators not being able to perform their movements and accidentally touching the control components to cause unnecessary operation accidents.
In terms of daily use precautions, first of all, do a good job of temperature difference transition maintenance. After each forklift leaves the room temperature environment from the low-temperature cold storage, do not immediately cut off the power supply of all equipment. Reserve enough standby time for the equipment to gradually heat up, fully dissipate the condensed dew on the surface of the fuselage, and avoid hidden damage caused by water vapor intrusion into the circuit. Secondly, optimize the operation scheduling logic. Try not to arrange forklifts to frequently shuttle between high and low temperature environments for a long time. Some equipment can be fixed to operate in the low temperature storage area for a long time to reduce the additional loss caused by sudden changes in temperature difference to the equipment. In addition, it is also necessary to appropriately increase the maintenance frequency of forklifts used in cold storage, regularly check the running status of seals and temperature-controlled heating components, and replace aging and worn parts in time to avoid minor failures from turning into major equipment problems. By reasonably selecting models and standardizing operation and maintenance, the service life of cold storage electric forklifts can be effectively extended, the smoothness of cold chain storage and handling operations can be guaranteed, and the overall operating cost can be reduced.
