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1 前言联合收割机以其省时、省力、高效,具有全程收割功能,明显改善田间劳作强度等人工无可比拟的机械化优点而倍受农民喜爱。但随其普及应用,出现的工作性能不稳、零部件频繁损坏、更换等质量问题,也引起了人们更多的关注。下面这台被投诉的北京牌联合收割机刚进入田头工作9个小时(累计78小时)就瘫倒田间无法工作了。可见加强农机及配件质量管
1 Introduction Combine harvester with its time-saving, labor-saving, efficient, with full harvesting function, significantly improve labor intensity and other labor incomparable advantages of mechanization and much loved by farmers. However, with its popularization and application, the work performance instability, frequent parts damage, replacement and other quality problems have also attracted more attention. The following complaint was the Beijing brand combine harvester just entering the field work nine hours (a total of 78 hours) collapsed on the field can not work out. Can be seen to strengthen the quality control of agricultural machinery and accessories