高原环境空气稀薄,在海拔4000m时,空气密度只有平原地区的65%左右,很多高原地区同时气温较低。在此环境中工作的挖掘机,其柴油机功率下降明显,液压系统、电气系统、零部件性能受到严重影响。为提高挖掘机对高原、高寒工作环境的适应性,保障其工作的可靠性和经济性,我们对某型挖掘机进行了调整和改装。 At the altitude of 4000m, the density of air in the plateau is only about 65% of that in the plains. In many plateaus, the air temperature is low at the same time. Excavators working in this environment, the diesel engine power decreased significantly, hydraulic systems, electrical systems, parts performance is seriously affected. In order to improve the adaptability of the excavator to the plateau and alpine work environment and ensure the reliability and economy of its work, we adjusted and modified a certain type of excavator.