JPH0288024U

JPH0288024U -

Info

Publication number: JPH0288024U
Application number: JP16869388U
Authority: JP
Priority date: 1988-12-26
Filing date: 1988-12-26
Publication date: 1990-07-12

Description

[Brief explanation of drawings]

第１図はこの考案の第１実施例を示す可変ピツ
チプロペラの軸受装置の部分の断面図、第２図は
第２実施例を示す第１図相当の図面、第３図は第
３実施例を示す第１図相当の図面、第４図は第４
実施例を示す第１図相当の図面である。１……ハウジング（旋回部材）、２……回転軸
、３……外側軸受装置、４……内側軸受装置、５
……外側穴部、６……内側穴部、８……第１軸部
、９……第２軸部、１０，１３……肩端面、１５
……シールリング、１５ａ……内側円筒部、１５
ｂ……外側円筒部、１５ｃ……フランジ部、１６
……円すいころ軸受、１７……内輪、１７ａ……
装着用端部、１８……外輪、１９……円すいころ
、２１，２２……シール、２４……シールリング
、２４ａ……内側円筒部、２４ｂ……外側円筒部
、２４ｃ……フランジ部、２５……円すいころ軸
受、２６……内輪、２７……外輪、２７ａ……装
着用端部、２８……円すいころ、２９，３０……
シール、４０……外側軸受装置、４１……内側軸
受装置、４２，４３……内輪、４２ａ……装着用
端部、４４，４５……外輪、４５ａ……装着用端
部、４６，４７……玉、５０，５１……アンギユ
ラ玉軸受、６０……外側軸受装置、６１……内側
軸受装置、６２……シールリング、６２ａ……円
筒部、６２ｂ……フランジ部、６３……シールリ
ング、６３ａ……円筒部、６３ｂ……フランジ部
、７０……外側軸受装置、７１……内側軸受装置
、Ｃ……軸線。 Fig. 1 is a sectional view of the bearing device of a variable pitch propeller showing the first embodiment of this invention, Fig. 2 is a drawing corresponding to Fig. 1 showing the second embodiment, and Fig. 3 is a third embodiment. A drawing equivalent to Figure 1 showing
2 is a drawing corresponding to FIG. 1 showing an embodiment. DESCRIPTION OF SYMBOLS 1... Housing (swivel member), 2... Rotating shaft, 3... Outer bearing device, 4... Inner bearing device, 5
...Outer hole, 6...Inner hole, 8...First shaft part, 9...Second shaft part, 10, 13...Shoulder end surface, 15
... Seal ring, 15a ... Inner cylindrical part, 15
b...Outer cylindrical part, 15c...Flange part, 16
... Tapered roller bearing, 17 ... Inner ring, 17a ...
Mounting end, 18... Outer ring, 19... Tapered roller, 21, 22... Seal, 24... Seal ring, 24a... Inner cylindrical part, 24b... Outer cylindrical part, 24c... Flange part, 25 ... Tapered roller bearing, 26 ... Inner ring, 27 ... Outer ring, 27a ... Mounting end, 28 ... Tapered roller, 29, 30 ...
Seal, 40... Outer bearing device, 41... Inner bearing device, 42, 43... Inner ring, 42a... End for attachment, 44, 45... Outer ring, 45a... End for attachment, 46, 47... ... Balls, 50, 51 ... Angular ball bearing, 60 ... Outer bearing device, 61 ... Inner bearing device, 62 ... Seal ring, 62a ... Cylindrical part, 62b ... Flange part, 63 ... Seal ring, 63a... Cylindrical part, 63b... Flange part, 70... Outer bearing device, 71... Inner bearing device, C... Axis line.

Claims

[Claims for Utility Model Registration] (1) Provided between a rotating member that is rotated around a predetermined rotating axis and a rotating shaft that is disposed within the rotating member such that the axis is perpendicular to the rotating axis. The bearing device comprises: a seal ring having a substantially U-shaped cross section in which radially outer ends of an inner cylindrical part and an outer cylindrical part about the pivot axis are connected by a flange part; and an inner side of the seal ring. A radial rolling bearing is inserted between the cylindrical part and the outer cylindrical part, and the inner ring receives a thrust load from the inside in the radial direction and the outer ring receives a thrust load from the outside in the radial direction. A gap is provided between the inner ring and the inner cylindrical portion and the flange portion of the seal ring so that the ends of the inner cylindrical portion and the outer cylindrical portion of the seal ring are brought into close contact with the circumferential surface and the inner surface of the flange portion. The inner ring of the bearing extends inward in the radial direction from the moving body, and the inner ring of the bearing extends inward in the radial direction from the end of the inner cylindrical portion of the seal ring, and this portion serves as the mounting end, and the outer cylindrical portion of the seal ring or A seal is provided between the radially inner end of the outer ring of the bearing and the inner ring of the bearing, and between the radially inner end of the inner cylindrical portion of the seal ring and the inner ring of the bearing, the seal ring The outer cylindrical portion of the bearing is brought into close contact with the inner circumferential surface of the hole in the rotating member, the flange portion of the seal ring is brought into close contact with the shoulder end surface of this hole, and the mounting end of the inner ring of the bearing is brought into close contact with the inner peripheral surface of the hole in the rotating member. 1. A bearing device characterized in that a gap is provided between an inner cylindrical portion of the seal ring and a shaft portion of a rotating shaft so as to be brought into close contact with an outer circumferential surface of the seal ring and a shoulder end surface of the bearing device. (2) A bearing device provided between a rotating member that is rotated around a predetermined rotating axis and a rotating shaft that is disposed within the rotating member such that the axis is orthogonal to the rotating axis, the bearing device comprising an inner cylinder. a seal ring having a substantially U-shaped cross section, in which the radially outer ends of the outer cylindrical part and the outer cylindrical part are connected by a flange; and between the inner cylindrical part and the outer cylindrical part of the seal ring. The inner ring receives thrust loads from the outside in the radial direction, and the outer ring receives thrust loads from the inside in the radial direction. a gap is provided between the outer ring and the outer cylindrical portion and the flange portion of the seal ring, and the ends of the inner cylindrical portion and the outer cylindrical portion of the seal ring extend inward in the radial direction from the rolling elements of the bearing; The outer ring of the bearing extends inward in the above radial direction from the end of the outer cylindrical portion of the seal ring, and this portion serves as the mounting end. A seal is provided between the end and the outer ring of the bearing, and between the radially inner end of the outer cylindrical part of the seal ring and the outer ring of the bearing, and the inner cylindrical part of the seal ring is connected to the axis of the rotating shaft. The flange of the seal ring is brought into close contact with the outer peripheral surface of the shaft, and the mounting end of the outer ring of the bearing is brought into close contact with the inner peripheral surface and shoulder end of the hole of the pivoting member. A bearing device characterized in that a gap is provided between an outer cylindrical portion of the seal ring and a hole portion of the pivoting member. (3) A bearing device provided between a rotating member that is rotated about a predetermined rotating axis and a rotating shaft that is disposed within the rotating member such that the axis is orthogonal to the rotating axis, the bearing device being A seal ring having a substantially L-shaped cross section and an outward flange portion formed at the outer end in the radial direction centered on the rotation axis of the cylindrical portion; It consists of a radial rolling bearing whose outer ring receives a thrust load from the outside in the radial direction. It is sandwiched between the shoulder end face and the end face of the outer ring of the bearing, and a gap is provided between the inner ring of the bearing and the cylindrical part and flange part of the seal ring. The inner ring of the bearing extends inward in the radial direction from the moving body, and the inner ring of the bearing extends inward in the radial direction from the end of the cylindrical portion of the seal ring, and this part serves as a mounting end; is brought into close contact with the outer peripheral surface and shoulder end surface of the shaft portion of the rotating shaft, a gap is provided between the cylindrical portion of the seal ring and the shaft portion of the rotating shaft, and the above radius of the hole of the rotating member or the outer ring of the bearing is A bearing device characterized in that a seal is provided between the radially inner end of the cylindrical portion of the seal ring and the inner ring of the bearing, and between the radially inner end of the cylindrical portion of the seal ring and the inner ring of the bearing. (4) A bearing device provided between a rotating member that is rotated about a predetermined rotating axis and a rotating shaft that is disposed within the rotating member such that the axis is orthogonal to the rotating axis, the bearing device being A seal ring having a substantially L-shaped cross section with an inward flange formed at the radially outer end of the cylindrical part centered on the above-mentioned pivot axis; It consists of a radial rolling bearing whose outer ring receives a thrust load from the inside in the radial direction, and the inner ring of the bearing is brought into close contact with the outer peripheral surface of the shaft of the rotating shaft, and the flange of the seal ring is attached to the shoulder of this shaft. It is sandwiched between the end face and the end face of the inner ring of the bearing, and a gap is provided between the outer ring of the bearing and the cylindrical part and flange part of the seal ring, and the end of the cylindrical part of the seal ring touches the rolling elements of the bearing. The outer ring of the bearing extends inward in the radial direction from the end of the cylindrical portion of the seal ring, and this part serves as a mounting end; A gap is provided between the cylindrical portion of the seal ring and the hole of the rotating member so as to be brought into close contact with the inner peripheral surface of the hole of the rotating member and the shoulder end surface, and a gap is provided between the cylindrical portion of the seal ring and the hole of the rotating member, and the radius of the shaft of the rotating shaft or the inner ring of the bearing is A bearing device characterized in that seals are provided between the radially inner end of the cylindrical portion of the seal ring and the outer ring of the bearing, and between the radially inner end of the cylindrical portion of the seal ring and the outer ring of the bearing.