The invention discloses a back pressure seal for metering pump, which comprises a shaft sleeve, a fastening ring, a limit ring, a static ring and a moving ring. It is characterized in that the shaft sleeve is provided with an installation groove, the fastening ring is connected with the shaft sleeve, and a sealing ring is arranged between the shaft sleeve and the fastening ring. The limit ring is connected with the shaft sleeve through a connecting screw. The axle sleeve is connected, and a sealing ring is arranged between the limit ring and the connecting screw. One end of the static ring is connected with the limit ring, and a finite slot and a sealing ring are arranged on the static ring, and an extension ring is arranged on the moving ring. The invention has an extension ring on the movable ring, a finite slot on the static ring and an extension ring in the limit slot, which can not only avoid the leakage of the metering pump caused by the springing of the dynamic ring and the static ring due to the large pressure of the metering pump, but also enhance the quality performance of the seals. Through the buffer block between the dynamic ring and the static ring, the dynamic ring can be reduced. The impact force of the ring on the static ring.
【技术实现步骤摘要】
一种用于计量泵反压密封件原案申请号:2016101754147。原案申请日:2016年3月25日。
本专利技术涉及一种密封件,具体是一种用于计量泵反压密封件。
技术介绍
计量泵因设计的原因,使计量泵的空间无法安装机械密封件,而为了提高计量泵的密封性能,多采用将机械密封件反装。现有的计量泵密封件在计量泵的压力达到一定程度后,密封件的动环、静环因承受不住高压而弹开,使计量泵产生泄露,降低了密封件的密封效果及使用寿命。
技术实现思路
本专利技术的目的是克服现有计量泵存在的密封件质量性能不高、使用寿命短、密封效果不佳的问题,提供一种质量性能高、密封效果好、使用寿命长的用于计量泵反压密封件。本专利技术解决的技术问题所采取的技术方案为:一种用于计量泵反压密封件,包括轴套、紧固环、限位环、静环和动环,其特征在于:所述的轴套上设置有安装槽,通过安装槽便于密封件的安装,所述的紧固环与轴套连接,并在轴套与紧固环之间设置有密封圈,通过密封圈提高了紧固环与轴套之间的密封性,所述的限位环通过连接螺杆与轴套连接,并在限位环与连接螺杆之间设置有密封圈,所述的静环一端与限位环连接,并在静环上设置有限 ...
【技术保护点】
1.一种用于计量泵反压密封件,包括轴套、紧固环、限位环、静环和动环,其特征在于:所述的轴套上设置有安装槽,所述的紧固环与轴套连接,并在轴套与紧固环之间设置有密封圈,所述的限位环通过连接螺杆与轴套连接,并在限位环与连接螺杆之间设置有密封圈,所述的静环一端与限位环连接,并在静环上设置有限位槽、密封圈,所述的动环上设置有伸展环,所述的静环与动环之间设置有缓冲块,并将缓冲块设置为弧形结构。
【技术特征摘要】
1.一种用于计量泵反压密封件,包括轴套、紧固环、限位环、静环和动环,其特征在于:所述的轴套上设置有安装槽,所述的紧固环与轴套连接,并在轴套与紧固环之间设置有密封圈,所述的限位环通过连接螺杆与轴套连接,并在限位环与连接螺杆之间设置有密封圈,所述的静环一端与限位环连接,并在静环上设置...
【专利技术属性】
技术研发人员:赵长红,
申请(专利权)人:芜湖市中天密封件有限公司,
类型:发明
国别省市:安徽,34
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