JPH01176270U

JPH01176270U -

Info

Publication number: JPH01176270U
Application number: JP7294088U
Authority: JP
Priority date: 1988-05-31
Filing date: 1988-05-31
Publication date: 1989-12-15

Description

[Brief explanation of the drawing]

第１図〜第４図は本考案の実施例を示し、第１
図は第１考案のメカニカルシール周辺の縦断正面
図、第２図は第１図における―線断面図、第
３図は第２考案を示す第１図相当図、第４図は第
２考案を示すシートリングの斜視図、第５図は従
来技術を示すエンジンのウオータポンプの要部縦
断正面図である。１……回転軸、２……シートリング、３……従
動リング、５……密封端面、６……弾圧体、７…
…放出溝、７ａ……放射溝、７ｂ……周溝、８…
…リング外周縁、１０……吸引空間、１５……放
射羽根、３１……１０の外周空間、Ｃ……回転軸
心。 1 to 4 show embodiments of the present invention, and the first
The figure is a longitudinal sectional front view of the vicinity of the mechanical seal of the first design, Figure 2 is a sectional view taken along the line - - in Figure 1, Figure 3 is a view equivalent to Figure 1 showing the second design, and Figure 4 is the second design. FIG. 5 is a perspective view of the seat ring shown in FIG. DESCRIPTION OF SYMBOLS 1... Rotating shaft, 2... Seat ring, 3... Driven ring, 5... Sealed end surface, 6... Repulsive body, 7...
...Emission groove, 7a...Radial groove, 7b...Peripheral groove, 8...
...Ring outer circumferential edge, 10... Suction space, 15... Radiation vane, 31... Outer circumferential space of 10, C... Rotation axis center.

Claims

[Claims for Utility Model Registration] 1. A seat ring 2 that is provided immovably in the axial direction C of the rotating shaft 1 and a driven ring 3 that is provided movably in the axial direction C of the rotating shaft 1 are connected by a sealed end surface 5. While rotatingly contacting each other, the driven ring 3 is connected to the elastic body 6.
In a mechanical seal that elastically seals the seal end face 5 by contacting and urging the seat ring 2 with A discharge groove 7 is formed, and the discharge groove 7 communicates with radial grooves 7a provided at multiple locations in the ring circumferential direction from the ring outer peripheral edge 8 to the middle part of the ring wall, and with the innermost part of each radial groove 7a. It is composed of a circumferential groove 7b provided along the circumferential direction in the middle of the ring wall, and is configured so that foreign matter in the fluid that has entered the sealing end face 5 is discharged from the discharge groove 7 to the outside of the ring by centrifugal force. A mechanical seal featuring: 2. The seat ring 2, which is provided immovably in the axial direction C of the rotating shaft 1, and the driven ring 3, which is provided movably in the axial direction C of the rotating shaft 1, are brought into rotational contact with each other at the sealed end surface 5, and the driven ring 3 as an oppressor 6
In this mechanical seal, a suction space 10 is formed along the outer periphery of the sealed end surface 5 of at least one of the driven ring 3 and the seat ring 2.
A radial discharge vane 12 is formed on the end face facing the suction space 10 of the ring disposed on the rotation side of both rings 2 and 3, and the rotation of the discharge vane 12 causes the suction space 10 and its outer circumferential space to 31, the fluid in the outer peripheral space 31 of the suction space 10 is sucked into the suction space 10 and then discharged to the outer peripheral part of the discharge vane 12.