JPS63115669U

JPS63115669U -

Info

Publication number: JPS63115669U
Application number: JP846487U
Authority: JP
Priority date: 1987-01-23
Filing date: 1987-01-23
Publication date: 1988-07-26

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示すメカニカル
シールの断面図、第２図は第１図における従動リ
ング側密封端面を示す正面図、第３図は従来のメ
カニカルシールの断面図である。図において１はスタツフイングボツクス、２は
ボルト、３はガスケツト、４はシールカバー、５
は回転軸、６は緩衝リング、７はシートリング、
８は軸パツキン、９は従動リング、１０はセツト
スクリユウ、１１はストツパ、１２はばね、１３
はセツトスクリユウ、１４は密封端面、１５は高
圧側流体、１６は同心円状の溝、１７はスパイラ
ル状の溝、イは回転方向である。なお、図中同一
符号は同一または相当部分を示す。 FIG. 1 is a sectional view of a mechanical seal showing an embodiment of this invention, FIG. 2 is a front view showing the sealed end surface on the driven ring side in FIG. 1, and FIG. 3 is a sectional view of a conventional mechanical seal. In the figure, 1 is the stuffing box, 2 is the bolt, 3 is the gasket, 4 is the seal cover, and 5 is the stuffing box.
is the rotating shaft, 6 is the buffer ring, 7 is the seat ring,
8 is a shaft seal, 9 is a driven ring, 10 is a set screw, 11 is a stopper, 12 is a spring, 13
14 is a set screw, 14 is a sealed end surface, 15 is a high-pressure side fluid, 16 is a concentric groove, 17 is a spiral groove, and A is a rotation direction. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

It consists of a driven ring that can move in the axial direction as the sealing end face wears, and a seat ring that does not move, the driven ring and the seat ring being in close contact with each other, and the sealing end face that rotates relatively perpendicularly to the axis. A mechanical seal comprising: a groove formed concentrically with respect to the rotating shaft on the sealed end surface on the driven ring side; and a plurality of spiral grooves opening outward from the concentric groove. mechanical seal.