Comparative Analysis of Maintenance Models in Forest Machines

Abstract This study aimed to perform a comparative analysis between models of mechanical maintenance in forestry machines, subsidizing operational planning in order to reduce production costs. The work was conducted in a forestry company with feller bunchers, skidders and harvester machines. The comparative analysis included the Traditional Maintenance and the World Class Maintenance (WCM) models in the judgment of mechanical availability, hydraulic oil consumption and maintenance costs. Using the WCM maintenance model, the results showed a 5% increase in mechanical availability and a 60% reduction in hydraulic oil consumption. The maintenance cost increased by 3% in the WCM model due to an investment in infrastructure and the training of mechanics, but with the potential for better maintenance of forest machines, along with improvements in operational safety, production capacity and longer machine life.

摘要 本研究旨在对林业机械的机械维护模型开展对比分析，为优化作业规划以降低生产成本提供支撑。本研究在某林业企业开展，研究对象涵盖伐木归堆机（feller bunchers）、集材机（skidders）与采伐机（harvester machines）。本次对比分析选取传统维护模式与世界级维护（World Class Maintenance, WCM）模型，从机械可用率、液压油消耗量及维护成本三个维度进行评估。采用世界级维护模型后，研究结果显示机械可用率提升5%，液压油消耗量降低60%。尽管因基础设施建设与机械师培训产生投入，世界级维护模型下的维护成本上涨3%，但该模型可实现林业机械的更优维护效果，同时提升作业安全性、生产产能，并延长机械使用寿命。