The utility model discloses a magnetic fluid sealing device for the crucible lifting of a single crystal furnace, which aims to solve the inconvenient connection between the transmission shaft and the crucible shaft of the magnetic fluid seal device, and the dust easily enters the gap between the transmission shaft and the base, and the bearing capacity of the transmission shaft is not good enough. The utility model comprises a transmission shaft, a base connected to the transmission shaft, the transmission shaft is a cylindrical hollow structure with tapered roller bearings are installed between the base shaft outer wall near the ends of the transmission and drive shaft and base between the front and the back ends of the outer wall are provided with a dustproof ring, a magnetic fluid seal component is arranged between the front end of the base the tapered roller bearing and a dustproof ring, a positioning sleeve is connected between the base two tapered roller bearings, drive shaft on the outer wall of the magnetic fluid seal between the component and the tapered roller bearing is provided with a limiting boss, in front of the tapered roller bearing is in contact with the limit on the boss.
【技术实现步骤摘要】
一种单晶炉坩埚提升用磁流体密封装置
本技术涉及一种密封装置,更具体地说,它涉及一种单晶炉坩埚提升用磁流体密封装置。
技术介绍
磁流体密封装置一般由不导磁座、轴承、磁极、永久磁铁、导磁轴、磁流体组成,在均匀稳定磁场的作用下,使磁流体充满于设定的空间内,建立起多级“O型密封圈”,从而达到密封的效果。但是目前很多磁流体密封结构的传动轴与坩埚轴连接不便,灰尘易进入传动轴和基座之间的缝隙中,而且传动轴的承载能力不足。
技术实现思路
本技术克服了磁流体密封装置传动轴与坩埚轴连接不便,灰尘易进入传动轴和基座之间的缝隙中,而且传动轴的承载能力不佳的不足,提供了一种单晶炉坩埚提升用磁流体密封装置,传动轴与坩埚轴连接方便,灰尘不易进入传动轴和基座之间的缝隙中,而且传动轴的承载能力好。为了解决上述技术问题,本技术采用以下技术方案:一种单晶炉坩埚提升用磁流体密封装置,包括传动轴、套接在传动轴外的基座,传动轴呈筒状中空结构,基座内靠近前后两端与传动轴外壁之间均安装有圆锥滚子轴承,基座前后两端和传动轴外壁之间均安装有防尘圈,基座前端的圆锥滚子轴承和防尘圈之间安装有磁流体密封组件,基座内两圆锥滚子轴承之间抵接有定位套筒,传动轴外壁上磁流体密封组件和圆锥滚子轴承之间设有限位凸台,前方的圆锥滚子轴承抵接在限位凸台上,基座后端连接有端盖,传动轴外壁上端盖和后方的圆锥滚子轴承之间紧固连接有限位环,后方的圆锥滚子轴承抵接在限位环上。传动轴为中空结构,便于抱紧坩埚轴进行连接,从而实现与坩埚轴一同旋转,而且便于加载水冷装置,降低磁流体密封装置的整体温度,防止磁流体失效。单晶炉坩埚室内,有大量粉尘存在,两端设 ...
【技术保护点】
一种单晶炉坩埚提升用磁流体密封装置,其特征是,包括传动轴、套接在传动轴外的基座,传动轴呈筒状中空结构,基座内靠近前后两端与传动轴外壁之间均安装有圆锥滚子轴承,基座前后两端和传动轴外壁之间均安装有防尘圈,基座前端的圆锥滚子轴承和防尘圈之间安装有磁流体密封组件,基座内两圆锥滚子轴承之间抵接有定位套筒,传动轴外壁上磁流体密封组件和圆锥滚子轴承之间设有限位凸台,前方的圆锥滚子轴承抵接在限位凸台上,基座后端连接有端盖,传动轴外壁上端盖和后方的圆锥滚子轴承之间紧固连接有限位环,后方的圆锥滚子轴承抵接在限位环上。
【技术特征摘要】
1.一种单晶炉坩埚提升用磁流体密封装置,其特征是,包括传动轴、套接在传动轴外的基座,传动轴呈筒状中空结构,基座内靠近前后两端与传动轴外壁之间均安装有圆锥滚子轴承,基座前后两端和传动轴外壁之间均安装有防尘圈,基座前端的圆锥滚子轴承和防尘圈之间安装有磁流体密封组件,基座内两圆锥滚子轴承之间抵接有定位套筒,传动轴外壁上磁流体密封组件和圆锥滚子轴承之间设有限位凸台,前方的圆锥滚子轴承抵接在限位凸台上,基座后端连接有端盖,传动轴外壁上端盖和后方的圆锥滚子轴承之间紧固连接有限位环,后方的圆锥滚子轴承抵接在限位环上。2.根据...
【专利技术属性】
技术研发人员:刘黎明,林志强,
申请(专利权)人:杭州慧翔电液技术开发有限公司,
类型:新型
国别省市:浙江,33
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