联合收获机皮带磨损故障诊断研究

在福田联合收获上,通过输送带模拟田间试验,由数据采集器和PC采集发动机轴以及中间轴的转速脉冲信号,通过测周法得到二者转速和主离合皮带滑动率;比较了测周法中采用不同磁钢个数和多个磁钢个数求平均对转速、滑动率的影响,并通过不同的平滑点数对滑动率进行了处理;最后,采用单磁钢并经过8点平滑处理,得到喂入量为8kg/s时皮带滑动率的变化值,给出皮带磨损预警阈值。

Belt Abrasion Fault Diagnosis Research of Combine Harvester

In the combine harvester named Foton,through the conveyor belt simulated field trials,the data acquisition implement and PC acquisition engine and the intermediate shaft speed pulse signal,after period measure algorithm obtain their rev and the sliding ratio of the belt.Different number of alnicos were compared impact the rev and sliding ratio,and through different smooth point deel with sliding ratio,finally through period measure algorithm with a single alnico,and smooth of number is 8,obtain change of the sliding ratio under 8kg feeding rate,then warning threshold is given.