The invention discloses an air sealing structure of a spindle, including a spindle end cap, a pressure cap, a distribution ring, and a sealing ring. The shaft end cap is sleeved on the spindle and has an air inlet channel; the pressure cap is sleeved on the spindle and is located on one side of the spindle end cap; the pressure cap is provided with an air passage connected with the air inlet channel; the distribution ring sleeve is located on the spindle and between the pressure cap and the spindle; The cover is sealed, the other end is connected with the cover to form an annular cavity; the annular cavity is connected with the airflow passage; the distribution ring is provided with air holes penetrating the distribution ring; the sealing ring is sleeved on the main shaft, and one end of the sealing ring is located between the cover and the main shaft, the other end is located between the distribution ring and the main shaft; the sealing ring and the pressure cover are sealed; the sealing ring is connected with the distribution ring gap; the sealing ring and the distribution ring are connected with the distribution ring gap. One end of the gap connection is connected with the stomata and the other end is connected with the outside. The technical scheme of the invention realizes the effective gas seal of the spindle through a simple structure, and the cost is low, which is advantageous to cost control.
【技术实现步骤摘要】
主轴的气密封结构
本专利技术涉及气密封
,特别涉及一种主轴的气密封结构。
技术介绍
随着气密封技术的日益成熟,其应用范围也越来越广。目前气密封逐渐在离心泵及搅拌器上得到应用,并逐步深入到数控机床高速主轴领域。在设计高速数控加工中心时,一个很重要的问题是要保证主轴前端有可靠的密封,主轴气密封可防止加工中的金属切削微粒渣进入主轴轴承和箱内其它零件,进而有效避免了金属切削微粒渣进入主轴轴承,而导致的主轴回转精度降低,影响了机床的加工性能的问题。现有的主轴密封结构均较为复杂,成本相对较高。
技术实现思路
本专利技术的主要目的是提供一种主轴的气密封结构,旨在低成本实现主轴的气密封。为实现上述目的,本专利技术提出一种主轴的气密封结构,包括轴端盖、压盖、分配环,以及密封环;其中,所述轴端盖套设于主轴,其设有进气通道;所述压盖套设于所述主轴,且位于所述轴端盖一侧;所述压盖设有与进气通道连通的气流通道;所述分配环套设于所述主轴,且位于所述压盖与所述主轴之间;所述分配环一端与所述压盖密封连接,另一端与所述压盖形成有环形腔体;所述环形腔体与所述气流通道连通;所述分配环设有与贯穿所述分配环的气孔;所述密封环套设于所述主轴,且所述密封环一端位于所述压盖与所述主轴之间,另一端位于所述分配环与所述主轴之间;所述密封环与所述压盖密封连接;所述密封环与所述分配环间隙连接;所述密封环与所述分配环间隙连接的一端与所述气孔连通,另一端与外部连通。可选的,所述主轴的气密封结构还包括套设于所述主轴的前端盖;所述前端盖用于遮挡于所述间隙。可选的,所述前端盖与所述主轴密封连接。可选的,所述前端盖与所述 ...
【技术保护点】
1.一种主轴的气密封结构,其特征在于,包括轴端盖、压盖、分配环,以及密封环;其中,所述轴端盖套设于主轴,其设有进气通道;所述压盖套设于所述主轴,且位于所述轴端盖一侧;所述压盖设有与进气通道连通的气流通道;所述分配环套设于所述主轴,且位于所述压盖与所述主轴之间;所述分配环一端与所述压盖密封连接,另一端与所述压盖形成有环形腔体;所述环形腔体与所述气流通道连通;所述分配环设有与贯穿所述分配环的气孔;所述密封环套设于所述主轴,且所述密封环一端位于所述压盖与所述主轴之间,另一端位于所述分配环与所述主轴之间;所述密封环与所述压盖密封连接;所述密封环与所述分配环间隙连接;所述密封环与所述分配环间隙连接的一端与所述气孔连通,另一端与外部连通。
【技术特征摘要】
1.一种主轴的气密封结构,其特征在于,包括轴端盖、压盖、分配环,以及密封环;其中,所述轴端盖套设于主轴,其设有进气通道;所述压盖套设于所述主轴,且位于所述轴端盖一侧;所述压盖设有与进气通道连通的气流通道;所述分配环套设于所述主轴,且位于所述压盖与所述主轴之间;所述分配环一端与所述压盖密封连接,另一端与所述压盖形成有环形腔体;所述环形腔体与所述气流通道连通;所述分配环设有与贯穿所述分配环的气孔;所述密封环套设于所述主轴,且所述密封环一端位于所述压盖与所述主轴之间,另一端位于所述分配环与所述主轴之间;所述密封环与所述压盖密封连接;所述密封环与所述分配环间隙连接;所述密封环与所述分配环间隙连接的一端与所述气孔连通,另一端与外部连通。2....
【专利技术属性】
技术研发人员:夏军,罗育银,叶李生,段周波,
申请(专利权)人:深圳市创世纪机械有限公司,
类型:发明
国别省市:广东,44
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。