Double Lions Tools Co., Ltd. , http://www.jcptool.com
Name: Light and medium load chemical pump open impeller double end machine seal adjustment device
Public (announcement) number: CN2849249
Public (announcement) day: 2006.12.20
Application (patent) person: Shanghai Liancheng (Group) Co., Ltd.
Address: No. 3616, Caoan Road, Jiangqiao Town, Jiading District, Shanghai, China
Invention (design) person: Fu Meng; Xie Zhangguo
Summary
The utility model relates to a light and medium load chemical pump open impeller double end machine seal adjusting device. The utility model comprises a shaft, a static ring seat, a front end machine seal, a rear end machine seal, a machine seal gland and a sleeve, wherein the sleeve is composed of two inner and outer sleeves, and a seal O-ring is arranged between the inner and outer sleeves. The inner and outer sleeves are fitted to the keys on one of the shafts, and the outer sleeve has a gap in the axial direction with respect to the keyway of the key. There are two sealing O-rings between the inner and outer sleeves, which are located at the first and last ends between the inner and outer sleeves. The utility model has the advantages that the deformation caused by the axial adjustment can be alleviated, thereby increasing the life and safety of the machine seal.
Application (Patent) No. 9.