A contact sealing device for high-speed bearing box of multi-wire cutting machine includes back end cap, bearing seat, front end cap, locking nut I, pressure sleeve, sealing ring I, ring, spindle, bearing I, bearing II, locking nut II, gasket, sealing ring II, pressure cap and sealing ring III. Sealing ring II is located between the flange of the main shaft and the front end cap, and the gasket is fixed at the front end pressure. The seal ring III is located between the cover and the front end cover, and the cover is fixed with the flange of the spindle; the bearing II is installed on the spindle and is locked by the locking nut II, and the bearing II is located in the bearing seat; the bearing I is fixed on the spindle, and the bearing I is limited by the pressing sleeve and the locking nut I, and the bearing I is located in the bearing seat; the seal ring I is installed in the pressure sleeve and the ring. Between them, the sleeve ring is mounted on the inner side of the back-end cover, and the sleeve ring is tightened to the bearing I through an adjusting member on the back-end cover. By using the invention, the sealing performance can be guaranteed to meet the sealing requirements of high-speed rotation of the high-speed bearing box.
【技术实现步骤摘要】
一种用于多线切割机高速轴承箱的接触式密封装置
本专利技术涉及一种用于多线切割机高速轴承箱的接触式密封装置。
技术介绍
目前,市场上多线切割机的高速主轴轴承箱主要使用的密封方式多为气密封方式或迷宫式密封。气密封是通过外部设备(如空压机)给轴承箱通入空气,使轴承箱内外产生一定的压力差,达到密封的效果,使用气密封,需配置空压机以及相关气动元件,且在轴承箱上还要加工相关空气管路,结构复杂,成本高,当气压不够或切割机切割室内切割液流速过高时,轴承箱气密封方式会失效。迷宫式密封同样在切割液流速过高切割时,密封形式会失效。当水或切割液进入轴承箱内侧时会导致轴承箱损坏;部分轴承箱采用旋转轴上防尘圈及密封圈密封结构形式,不能满足触水型轴承箱密封要求,且防尘圈多应用于低转速轴承箱之中,难以适应高转速轴承箱;另有部分轴承箱结构采用旋转轴上安装机械式密封,该结构采用缓冲补偿机构使得密封环贴合轴面,组合零件多,占用空间大,无法满足窄距离安装空间的使用,且机械式密封不适应于多线切割机的实际使用,多线切割机运行一段时间,切割液切割时混入材料粉末后凝结于密封环与旋转轴接触处,使得缓冲补偿机构失效 ...
【技术保护点】
1.一种用于多线切割机高速轴承箱的接触式密封装置,包括后端压盖、轴承座和前端压盖,其特征在于:还设有锁紧螺母Ⅰ、压套、密封圈Ⅰ、套环、主轴、轴承Ⅰ、轴承Ⅱ、锁紧螺母Ⅱ、垫圈、密封圈Ⅱ、压盖和密封圈Ⅲ;所述密封圈Ⅱ位于主轴的法兰和前端压盖之间,所述垫圈固定在前端压盖上,对密封圈Ⅱ进行限位;所述密封圈Ⅲ位于压盖和前端压盖之间,所述压盖与主轴的法兰固定连接;所述轴承Ⅱ安装于主轴上,并用锁紧螺母Ⅱ锁紧,所述轴承Ⅱ位于轴承座内;所述轴承Ⅰ固定在主轴上,并通过压套及锁紧螺母Ⅰ对轴承Ⅰ进行限位固定,所述轴承Ⅰ位于轴承座内;所述密封圈Ⅰ安装于压套与套环之间,所述套环安装在后端压盖内侧,并通 ...
【技术特征摘要】
1.一种用于多线切割机高速轴承箱的接触式密封装置,包括后端压盖、轴承座和前端压盖,其特征在于:还设有锁紧螺母Ⅰ、压套、密封圈Ⅰ、套环、主轴、轴承Ⅰ、轴承Ⅱ、锁紧螺母Ⅱ、垫圈、密封圈Ⅱ、压盖和密封圈Ⅲ;所述密封圈Ⅱ位于主轴的法兰和前端压盖之间,所述垫圈固定在前端压盖上,对密封圈Ⅱ进行限位;所述密封圈Ⅲ位于压盖和前端压盖之间,所述压盖与主轴的法兰固定连接;所述轴承Ⅱ安装于主轴上,并用锁紧螺母Ⅱ锁紧,所述轴承Ⅱ位于轴承座内;所述轴承Ⅰ固定在主轴上,并通过压套及锁紧螺母Ⅰ对轴承Ⅰ进行限位固定,所述轴承Ⅰ位于轴承座内;所述密封圈Ⅰ安装于压套与套环之间,所述套环安装在后端压盖内侧,并通过后端压盖上的调节件使套环顶紧轴承Ⅰ,所述后端压盖与轴承座固定连接。2.根据权利要求1所述的用于多线切割机高速轴承箱的接触式密封装置,其特征在于:所述前端压盖固定在轴承座端面上,所述压盖固定在主轴端面上,二者形成一个立体的两级密封安装结构。3.根据权利要求1或2所述的用于多线切割机高速轴承箱的...
【专利技术属性】
技术研发人员:戴瑜兴,杨佳葳,蒋罗雄,
申请(专利权)人:宇晶机器长沙有限公司,
类型:发明
国别省市:湖南,43
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