JPH0191166U

JPH0191166U -

Info

Publication number: JPH0191166U
Application number: JP18643887U
Authority: JP
Priority date: 1987-12-09
Filing date: 1987-12-09
Publication date: 1989-06-15

Description

[Brief explanation of the drawing]

第１図は本考案に係るメカニカルシールの第１
実施例を示す要部概略的断面図、第２図は同じく
補強バネ部材の斜視図、第３図は本考案に係るメ
カニカルシールの第２実施例を示す要部概略的断
面図、第４図は同じく補強バネ部材の斜視図、第
５図は従来のメカニカルシールを示す要部概略的
断面図である。１…機体（ハウジング）、２…回転軸、４…回
転摺接環（シールリング）、５…固定摺接環（メ
イテイングリング）、６…リテーナ、６１…係合
溝、７…ホルダー、７１…係合溝、８…溶接ベロ
ーズ、８ａ，８ｂ…端部、９…外筒、１０…補強
バネ部材、１０ａ，１０ｂ…端部。 Figure 1 shows the first mechanical seal according to the present invention.
FIG. 2 is a perspective view of a reinforcing spring member; FIG. 3 is a schematic cross-sectional view of a main part showing a second embodiment of the mechanical seal according to the present invention; FIG. Similarly, FIG. 5 is a perspective view of a reinforcing spring member, and FIG. 5 is a schematic cross-sectional view of a main part showing a conventional mechanical seal. DESCRIPTION OF SYMBOLS 1... Body (housing), 2... Rotating shaft, 4... Rotating sliding ring (seal ring), 5... Fixed sliding ring (mating ring), 6... Retainer, 61... Engaging groove, 7... Holder, 71 ...Engagement groove, 8... Welded bellows, 8a, 8b... End portion, 9... Outer tube, 10... Reinforcement spring member, 10a, 10b... End portion.

Claims

[Claims for Utility Model Registration] (1) A rotating sliding contact ring is fixed to a rotating shaft inserted into the housing of the aircraft body, and a fixed sliding contact ring is slidably arranged on the rotating sliding contact ring, and this fixing A welded bellows with both ends welded and held between a retainer and a holder is arranged on the back side of the sliding ring, while a holder holding the other end of the welded bellows is fixed to the housing of the body via an outer cylinder. In this mechanical seal, a reinforcing spring member is provided in a bridging manner on the inner peripheral surface side of the welded bellows between the retainer and the holder, and the fixed sliding ring is brought into rotational sliding contact by the biasing force of the reinforcing spring member. A mechanical seal characterized by being elastically biased against a ring in the axial direction. (2) The mechanical seal according to claim 1, wherein a plurality of the reinforcing spring members are arranged in the circumferential direction of the rotating shaft. (3) According to either claim 1 or 2 of the utility model registration claim, wherein both ends of the reinforcing spring member that abuts between the retainer and the holder are free in the circumferential direction. Mechanical seal as described. (4) Utility model registration claim 1, characterized in that both ends of the reinforcing spring member that abuts between the retainer and the holder are fixed to prevent rotation.
The mechanical seal according to any one of Item 1 and Item 2.