The utility model belongs to the field of motor manufacturing technology, in particular to a sealing device for the penetrating part of motor shaft, including a pressing plate cover, a copper sealing ring and an outer cover of the motor: the pressing plate cover is sleeved on the motor shaft, and there is a gap between the pressing plate cover and the motor shaft; the copper sealing ring is fixed on the inner circumferential surface of the pressing plate cover, and is used to seal the gap between the pressing plate cover and the motor shaft; The end of the off-motor shaft is fixedly connected with the motor cover. The utility model adopts a copper sealing ring instead of felt in the prior art, which not only simplifies the structure and has good heat dissipation, solves the problems of compact extrusion between felt and shaft caused by felt sealing in the prior art, and unqualified temperature rise of motor bearing caused by friction and heating between felt and shaft, but also satisfies the air tightness requirement of motor. The device has simple structure and is easy to install and use. Therefore, it has a good application prospect in the seating of motor shaft and motor shaft of seat sliding bearing structure.
【技术实现步骤摘要】
一种电机轴贯通部位的密封装置
本技术属于电机制造
,具体涉及一种电机轴贯通部位的密封装置。
技术介绍
目前在现有技术中,涉及到座式滑动轴承结构电机轴贯通部位与轴之间的密封,一般采用如图1和图2所示的密封结构,包括电机外罩3,第一压板2、第二压板4,层板6和毛毡5。电机外罩3和第一压板2通过螺栓固定,第一压板2和第二压板4通过螺栓固定,层板6压紧毛毡5固定在第一压板2和第二压板4形成的腔中,毛毡5同电机轴1接触。电机通过第一压板2、第二压板4和层板6将毛毡5压紧,套装在轴贯通部位,进而将电机外罩3与电机轴1之间的间隙密封起来。现有密封结构部件多、结构复杂,安装或拆卸很不方便。此外,虽然该密封结构可以满足电机防护等级达到IP54要求,但随着GB3836.3-2010标准的实施增加了对电机吹扫的要求,轴贯通密封结构不仅需要满足电机的防护要求,还要满足电机的气密性要求。现有轴贯通密封结构为满足气密性要求,经常使毛毡和轴挤压紧密,导致轴和毛毡摩擦发热,进而造成轴的温度升高,热量传递到轴承台处,引起电机轴承温度升高,导致电机轴承温升不合格。
技术实现思路
针对现有技术中轴贯 ...
【技术保护点】
1.一种电机轴贯通部位的密封装置,其特征在于,包括压板盖、铜制密封环和电机外罩:所述压板盖套接在电机轴上,压板盖与电机轴之间留有间隙;所述铜制密封环固定在压板盖的内圆周表面,用于密封压板盖与电机轴之间的间隙;所述压板盖远离电机轴的端部与电机外罩固定连接。
【技术特征摘要】
1.一种电机轴贯通部位的密封装置,其特征在于,包括压板盖、铜制密封环和电机外罩:所述压板盖套接在电机轴上,压板盖与电机轴之间留有间隙;所述铜制密封环固定在压板盖的内圆周表面,用于密封压板盖与电机轴之间的间隙;所述压板盖远离电机轴的端部与电机外罩固定连接。2.如权利要求1所述的密封装置,其特征在于,所述铜制密封环通过镶嵌固定在压板盖的内圆周表面。3.如权利要求1所述的密封装置,其特...
【专利技术属性】
技术研发人员:李帅,段昆,胡彦能,张占林,李鲲鹏,李有弟,
申请(专利权)人:卧龙电气南阳防爆集团股份有限公司,卧龙电气集团股份有限公司,
类型:新型
国别省市:河南,41
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