JPS5879171U - Deflection axis tracking shaft sealing device - Google Patents

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

【図面の簡単な説明】[Brief explanation of drawings]

図面は本考案たわみ軸追従軸封装置の一実施例を示すも
ので、第１図は従来装置の要部正断面図、第２図は本考
案装置の正断面図、第３図は同要部正断面図である。 １・・・回動軸、１ａ・・・キー溝、２・・・ハウジン
グ、２ａ・・・段部、３・・・フランジ、３ａ・・・鍔
、４，１２゜１９・・・０リング、５・・・筒状孔、５
ａ・・・段差、６・・・固定環、６ａ・・・摺動面、６
ｂ・・・テーパ外周、７・・・バネ受棚、８・・・ボト
ル、９．１６・・・ドライブピン、１０．１５・・・コ
イルスプリング、１１・・・バックアップリング、１３
・・・回転環、１３ａ・・・テーパ軸孔、１４・・・バ
ネ受座、１７・・・キー、１８・・・ピン、２０・・・
ノックピン。The drawings show an embodiment of the deflection axis following shaft sealing device of the present invention. Fig. 1 is a front sectional view of the main parts of the conventional device, Fig. 2 is a front sectional view of the device of the present invention, and Fig. 3 is the same main part. FIG. DESCRIPTION OF SYMBOLS 1... Rotation shaft, 1a... Keyway, 2... Housing, 2a... Step part, 3... Flange, 3a... Flange, 4, 12° 19... 0 ring , 5... cylindrical hole, 5
a...Step, 6...Fixed ring, 6a...Sliding surface, 6
b...Tapered outer periphery, 7...Spring holder, 8...Bottle, 9.16...Drive pin, 10.15...Coil spring, 11...Backup ring, 13
...Rotating ring, 13a...Tapered shaft hole, 14...Spring seat, 17...Key, 18...Pin, 20...
Dowel pin.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ハウジング側に固定された固定環に回動軸側に固定した
回転環を摺回動自在に圧接し、その摺回動面て内部流体
を封緘する軸封装置において、上記固定環の回りにハウ
ジングに対して軸方向のみ摺動自在に担持されたフラン
ジの内面と固定環の外周に形成したテーパ外周間に０リ
ングを介装するとともに、該Ｏリングの背面に上記固定
環およびハウジングまたは何れか一方に内外挿担持した
環状の弾性体からなるバックアップリングを沿設し、か
つ上記固定環を軸方向内方に弾性付勢し、前記回転環と
回動軸に外挿したバネ受座間に介装したコイルスプリン
グの婦性と相応して摺動面圧および角度を適正に保つこ
とを特徴とするたわみ軸追従軸封装置。In a shaft sealing device in which a rotary ring fixed to a rotary shaft side is slidably pressed into contact with a fixed ring fixed to a housing side, and the internal fluid is sealed by the sliding surface of the rotary ring, a housing is attached around the fixed ring. An O-ring is interposed between the inner surface of the flange, which is slidably supported only in the axial direction, and the tapered outer periphery formed on the outer periphery of the fixed ring, and the fixed ring and/or the housing are mounted on the back surface of the O-ring. A backup ring made of an annular elastic body inserted and supported on one side is provided, and the fixed ring is elastically biased inward in the axial direction, and is interposed between the rotating ring and a spring bearing seat inserted externally on the rotating shaft. A deflection shaft following shaft sealing device that maintains appropriate sliding surface pressure and angle in accordance with the nature of the coil spring installed.