The utility model discloses a self pressing packing seal, including a packing box and a cover. The packing box is connected by a bolt to a cap and forms a sealing component. The sealing component is connected to the cavity through a long bolt, and the sealing component and the rotating shaft are also provided with a filling material between the packing and the cap. There is a tight ring and a floating ring, one side of the floating ring is tightly attached to the cover, the other is pressed tight ring, and the pressing ring is pressed to compress the packing; the floating ring and the press ring are also provided with a spring, and the utility model is reasonable in design, simple in structure, convenient in use and long in service life, by improving the packing box and packing. A floating ring, a tight ring and a spring are added between the spring force and the spring force to provide pressure for the packing. In this way, there is no need for artificial timing to tighten the bolt and compress the cover to provide pressure to the packing, so as to avoid the personal safety threat caused by the leakage of media when the maintenance personnel are tightened in the production site.
【技术实现步骤摘要】
一种自压紧式填料密封
本技术涉及一种机械密封,尤其是一种自压紧式填料密封。
技术介绍
填料密封主要用于机械行业中的过程机器和设备运动部分的动密封,比如离心泵、压缩机、真空泵、搅拌机、反应釜的转轴密封和往复泵、往复式压缩机的柱塞或活塞杆,以及做直线、螺旋运动阀门的阀杆与固定机体之间的密封;而传统的填料密封使用时间短、需要定时人工维护、存在安全隐患的问题。现有填料密封多采用压盖螺栓压紧在填料盒内,经过一段时间的使用,填料磨损,与旋转轴之间的间隙增加,泄漏增大,此时就需要人工拧紧螺栓,加大压紧力。为了保证生产,需要维修人员定时维护,同时也带来一定的安全隐患。
技术实现思路
因此,为克服上述不足,本技术在此提供一种设计合理,结构简单,使用方便,使用寿命长的填料密封,通过改进在填料盒和填料之间增加了浮动环、压紧环和弹簧,由弹簧力来持续给填料提供压紧力,这样就无需人工定时用外力拧紧螺栓,通过压紧压盖来给填料提供压紧力,避免了维护人员在生产现场紧定螺栓时,介质泄漏所带来的人身安全威胁。另外我们在填料盒装填料的位置后面增加了梳齿,这就可以减缓介质的泄漏速度,延长填料密封的使用时间。本技术是这样实现的,构造一种自压紧式填料密封,包括填料盒和压盖,所述填料盒通过螺栓与压盖连接,并形成密封组件,该密封组件再通过长螺栓连接于腔体;所述密封组件与旋转轴之间还设置有填料,该填料与压盖之间依次设置有压紧环和浮动环,浮动环一侧紧贴于压盖,另一侧压紧压紧环,该压紧环再压紧填料;所述浮动环与压紧环之间还设置有弹簧。优选地,所述填料盒前端与旋转轴接触处还设置有梳齿。优选地,所述填料盒与压盖之间设置有O ...
【技术保护点】
1.一种自压紧式填料密封,其特征在于:包括填料盒(4)和压盖(2),所述填料盒(4)通过螺栓与压盖(2)连接,并形成密封组件,该密封组件再通过长螺栓(5)连接于腔体(3);所述密封组件与旋转轴(1)之间还设置有填料(9),该填料(9)与压盖(2)之间依次设置有压紧环(7)和浮动环(6),浮动环(6)一侧紧贴于压盖(2),另一侧压紧压紧环(7),该压紧环(7)再压紧填料(9);所述浮动环(6)与压紧环(7)之间还设置有弹簧(8)。
【技术特征摘要】
1.一种自压紧式填料密封,其特征在于:包括填料盒(4)和压盖(2),所述填料盒(4)通过螺栓与压盖(2)连接,并形成密封组件,该密封组件再通过长螺栓(5)连接于腔体(3);所述密封组件与旋转轴(1)之间还设置有填料(9),该填料(9)与压盖(2)之间依次设置有压紧环(7)和浮动环(6),浮动环(6)一侧紧贴于压盖(2),另一侧压紧压紧环(7),该压紧环(7)再压紧填料(9);所述浮动环(...
【专利技术属性】
技术研发人员:张鸿武,杨梅,
申请(专利权)人:成都赛乐化新机电有限公司,
类型:新型
国别省市:四川,51
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