JPS5983255U

JPS5983255U - Fluororesin bellows type mechanical seal

Info

Publication number: JPS5983255U
Application number: JP17933682U
Authority: JP
Inventors: 正夫清水; 山内　定光
Original assignee: 日本ピラ−工業株式会社
Priority date: 1982-11-27
Filing date: 1982-11-27
Publication date: 1984-06-05

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ないし第３図は本考案の一実施例を示す図で、第
１図は全体構成を示す縦断面図、第２図はベローズ２４
と従動リング１２との保持状態を示す拡大断面図、第２
図はベローズ２４の斜視図である。２・・・回転軸、８・・・シートリング、１０・・・ハ
ウジング、１２・・・従動リング、２０・・・係合凹部
、２４・・・ベローズ、２６・・・保持部、２８・・・
係合突起、３０・・・切欠部、３６・・・スプリングリ
テーナ、４０・・・コイルスプリング、４２・・・支持
体。 −２４＼２６　　　　・1 to 3 are diagrams showing one embodiment of the present invention, in which FIG. 1 is a vertical sectional view showing the overall configuration, and FIG. 2 is a bellows 24.
An enlarged sectional view showing the holding state of the driven ring 12 and the driven ring 12, the second
The figure is a perspective view of the bellows 24. DESCRIPTION OF SYMBOLS 2... Rotating shaft, 8... Seat ring, 10... Housing, 12... Driven ring, 20... Engagement recessed part, 24... Bellows, 26... Holding part, 28...・・・
Engagement protrusion, 30... Notch, 36... Spring retainer, 40... Coil spring, 42... Support body. -24 ＼ 26 ・

Claims

[Scope of utility model registration request]

(1) A seat ring having an annular shape surrounding the rotating shaft in the circumferential direction and held in the housing, and a seat ring that contacts the seat ring to form a sealed end surface and has an engaging recess on the outer peripheral surface and follows the rotating shaft. A rotating driven ring, a fluororesin bellows surrounding the rotating shaft and having a holding part formed with an engaging protrusion that is in contact with the outer peripheral surface of the driven ring and that engages with the engaging recess; A spring retainer disposed on the outer periphery and having a spring to press the bellows and the driven ring toward the sealed end surface, and a support body supporting the spring retainer and the bellows and fixed to the rotating shaft. A bellows-shaped mechanical seal made of fluororesin.

(2) The retaining portion of the bellows is formed in an annular shape, has an annular engagement protrusion that engages with the annular engagement recess, and has notches formed at multiple locations in the circumferential direction. A bellows-type mechanical seal made of fluororesin according to claim (1) of the registered utility model.