油锯伐木作业动作重复性高,劳动强度大,其强度达到重体力劳动等级(段铁成,2010).由于我国伐区作业条件不同,对油锯手的生理与心理影响较大,导致作业效率因环境变化而变化(王立海等,1995).如何使油锯手在高强度作业与不利的环境条件下保持比较高的作业效率,能保障作业人员的安全与健康,并且将林业机械设计与使用过程中融入人机工程学的理念,这些将成为科技工作者要研究的重要问题(潘明旭等,2011).%The effect of different slopes and pushing force on the heart rate of loggers in standard posture as well as on the one cutting cycle was studied in this paper. According to the questionnaire from experts, the weight of each analysis factor was obtained and AHP method was adopted to conclude the standard posture based on experiment. After comparison on the data that's got from experiment with mathematical statistics method, it was concluded that, under three different slopes, different pushing force had significant effect on the cutting cycle with standard posture. But the pushing force did not have much impact on the heart rate of the loggers at zero degree slope. Meanwhile, large pushing force and moderate pushing force did not affect the heart rate significantly when the slope is Fifteen degree, and the opposite result is with small force. At thirty degree slope, each pushing force had significant effect on the heart rate of loggers. The research may provide as a guide to the loggers in reasonable pushing force selection at different slopes, which is beneficial for the forestry production department to draft relevant operating standards in order to guarantee the working efficiency as well as the safety and physical health of loggers.
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