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qu zhou chang jian sun shang ji yu fang cuo shi
Author(s): 
Pages: 32
Year: Issue:  6
Journal: Farm Machinery Using & Maintenance

Abstract: 曲轴是柴油机最重要的机件之一,曲轴主要由前端、主轴颈、曲柄、连杆轴颈和尾部构成.曲轴的前端装有曲轴正时齿轮,尾部安装飞轮的圆锥面.主轴颈支承在机体主轴承中,并在其中旋转,是整个曲轴的支承部分.在主轴颈上钻有通往连杆轴颈的油道.由于主轴颈与主轴承之间的相对滑动速度通常很高,故除了必须采用压力供油润滑之外,主轴颈表面常经淬火处理提高硬度,以提高其耐磨性.
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