摘要
为解决自升式平台减速器行星架加工难和受力差的缺点,提出一种装配式行星架结构形式.装配结构连接处采用过盈连接,并在行星轮轴尾部与行星板连接处增加点焊,将行星架与行星板连接成一体,所有行星轮轴采用阶梯轴形式;对行星轮轴的形状进行受力分析,并通过试验对过盈配合的轴向力和焊接后的变形进行研究.结果表明,行星轮的阶梯轴形式可以有效解决受力差的缺点;过盈配合加点焊的结构保证了可靠的连接并解决了加工难的缺点;装配式行星架节约了加工成本,增加了减速器的可靠性.
In order to resolve the machining difficulty and loading deficiency for jack-up platform planet carrier,an assembly planet carrier structure is proposed.By applying the interference fitting for assembly structure connection,the planet carrier and plate are connected using point welding between planet axle end and planet plate.The multi-diameter axle is tested for loading analysis on interference fitting axial force and welding deformation.Accordingly,it is found from results that the multi-diameter axle can effectively resolve the loading deficiency.Meanwhile,the structure with interference fitting and point welding can guarantee reliable connection against machining difficulty.Therefore,the assembly carrier reduces the machining cost and enhances the reducer reliability.
出处
《中国工程机械学报》
北大核心
2015年第6期527-531,共5页
Chinese Journal of Construction Machinery
基金
国家自然科学基金资助项目(50975207
51075304
51205292)
中央高校基本科研业务费专项资金资助项目
关键词
抬升减速器
行星架
有限元分析
jack-up reducer
planet carrier
finite element analysis
