The utility model discloses a sealing device for the main shaft of a roller screen, which comprises: a sealing cushion plate installed on the roller screen, a first through hole is arranged on the sealing cushion plate; an open sealing seat is arranged on the sealing cushion plate, a second through hole is arranged on the sealing end face of one side of the sealing seat, the main shaft penetrates the first through hole, the open hole and the second through hole in turn, and extends to the outside of the roller screen; and A double framework oil seal is installed in the sealing cavity. The double framework oil seal is used to isolate the inside and outside of the screen shell, which can not only prevent the dust inside the screen shell from adsorbing on the main shaft, but also prevent the external dust from entering the inside of the shell. Because the double framework oil seal includes the framework body, two ends of the framework body are respectively provided with an inclined sealing part, and the free end of the sealing part is against the main shaft, so as to facilitate The dust is sealed in the screen shell with the sealing part; the two sealing parts and the framework body are enclosed in a semi closed grease placing cavity, which is filled with lithium-based grease, and a lithium-based grease is used to increase the sealing performance.
【技术实现步骤摘要】
滚轴筛主轴密封装置
本技术涉及滚轴筛设备
,具体涉及一种滚轴筛主轴密封装置。
技术介绍
滚轴筛是由多根转动安装在筛壳上的主轴组成,多根主轴平行排列且通过链轮或者齿轮驱动旋转,每一根主轴上均装有用于筛分物料的筛盘,当主轴转动时带动筛盘转动,细粒物料从筛盘间的缝隙通过,大块物料由主轴带动向末端移动并排出。由于物料在筛壳内筛分时会造成飞扬,微小的粉尘容易吸附到主轴上,从而造成主轴旋转不畅。
技术实现思路
针对以上缺陷,本技术所要解决的问题是提供一种滚轴筛主轴密封装置,既能阻止筛壳内部的粉尘吸附到主轴上,保持主轴正常旋转,也可以阻止外部的粉尘进入壳体内部,污染内部筛分的物料。为解决上述技术问题,本技术的技术方案是:滚轴筛主轴密封装置,包括:安装于所述滚轴筛上的密封座垫板,所述密封座垫板上设置有第一通孔;位于所述第一通孔处的所述密封座垫板上安装有敞口的密封座,所述敞口与所述第一通孔相连通;所述密封座内设置有密封腔,所述密封腔一侧的密封端面上设置有第二通孔,所述主轴依次贯穿所述第一通孔、 ...
【技术保护点】
1.滚轴筛主轴密封装置,其特征在于,/n包括:安装于所述滚轴筛上的密封座垫板,所述密封座垫板上设置有第一通孔;位于所述第一通孔处的所述密封座垫板上安装有敞口的密封座,所述敞口与所述第一通孔相连通;所述密封座内设置有密封腔,所述密封腔一侧的密封端面上设置有第二通孔,所述主轴依次贯穿所述第一通孔、敞口、密封腔和第二通孔并延伸至所述滚轴筛的外部;/n所述密封腔内安装有双骨架油封,所述双骨架油封包括骨架本体,所述骨架本体的两端分别设置有一倾斜的密封部,所述密封部的自由端抵靠在所述主轴上;两所述密封部和骨架本体围成半封闭的油脂放置腔,所述油脂放置腔内填充有锂基润滑脂。/n
【技术特征摘要】
1.滚轴筛主轴密封装置,其特征在于,
包括:安装于所述滚轴筛上的密封座垫板,所述密封座垫板上设置有第一通孔;位于所述第一通孔处的所述密封座垫板上安装有敞口的密封座,所述敞口与所述第一通孔相连通;所述密封座内设置有密封腔,所述密封腔一侧的密封端面上设置有第二通孔,所述主轴依次贯穿所述第一通孔、敞口、密封腔和第二通孔并延伸至所述滚轴筛的外部;
所述密封腔内安装有双骨架油封,所述双骨架油封包括骨架本体,所述骨架本体的两端分别设置有一倾斜的密封部,所述密封部的自由端抵靠在所述主轴上;两所述密封部和骨架本体围成半封闭的油脂放置腔,所述油脂放置腔内填充有锂基润滑脂。
2.如权利要求1所述的滚轴筛主轴密封装置,其特征在于,每一所述密封部上设置有四个环形凹槽,四个所述...
【专利技术属性】
技术研发人员:白一凡,白文庆,
申请(专利权)人:山东汇英重型机械有限公司,
类型:新型
国别省市:山东;37
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