JPH01147105U - - Google Patents

Description

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

第１図は本考案の一実施例に係る全浮動式リヤ
アクスルの洩れオイルリターン装置を適用した全
浮動式リヤアクスルの片側の要部断面図、第２図
は同上装置のオイル溜め用の溝及びその近傍部の
拡大上面図、第３図は従来技術を示す全浮動式リ
ヤアクスルの片側の断面図である。 １……アクスルハウジング、１ａ……アクスル
ハウジング端部、１ｃ……アクスルハウジング端
部の外周面、２……リヤアクスル、２ａ，１０…
…フランジ部、３……ホイールハブ、４……テー
パローラ軸受、７，１７……オイルシール、１７
ｂ……リヤアクスル側に向かつて撓むリツプ、１
０ｅ……フランジ部内面、１１……オイルスリン
ガ、１１ｃ……オイルスリンガ先端、１２……オ
イル溜め用の溝、１３……貫通穴。 Figure 1 is a cross-sectional view of one side of a main part of a fully floating rear axle to which a leakage oil return device for a fully floating rear axle according to an embodiment of the present invention is applied, and Figure 2 is a sectional view of the oil reservoir groove of the same device and its groove. FIG. 3 is an enlarged top view of the vicinity and a sectional view of one side of a fully floating rear axle showing the prior art. DESCRIPTION OF SYMBOLS 1... Axle housing, 1a... Axle housing end, 1c... Outer peripheral surface of axle housing end, 2... Rear axle, 2a, 10...
...Flange part, 3...Wheel hub, 4...Taper roller bearing, 7, 17...Oil seal, 17
b...Lip bending toward the rear axle side, 1
0e...Flange inner surface, 11...Oil slinger, 11c...Oil slinger tip, 12...Oil reservoir groove, 13...Through hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 略円筒状のアクスルハウジングと、該アクスル
ハウジング内に配置され、該アクスルハウジング
の両端からそれぞれ突出する円盤状のフランジ部
を有する駆動軸たるリヤアクスルと、前記アクス
ルハウジングの両端部の内面と前記リヤアクスル
外周面との間にそれぞれ配置されるオイルシール
と、一端が前記フランジ部に、他端がブレーキド
ラムにそれぞれ固着され、前記アクスルハウジン
グの両端部を内方に収容する円筒状の各ホイール
ハブと、該各ホイールハブの内周面と前記アクス
ルハウジングの両端部の外周面との間に各２個ず
つ配置されるテーパローラ軸受とを具備し、各後
車輪にかかる荷重を前記軸受を介して前記アクス
ルハウジングで受け、前記リヤアクスルには駆動
や制動トルク以外の一切の荷重がかからないよう
にした全浮動式リヤアクスルにおいて、前記フラ
ンジ部の内面の前記アクスルハウジングの両端部
の外周面よりさらに外方から該両端部の外周面に
向かつて突出するオイルスリンガと、前記アクス
ルハウジングの上部外周面の前記オイルスリンガ
先端の近傍部位に形成されるオイル溜め用の溝と
、該溝の底面と前記アクスルハウジング内とを連
通する貫通穴とを備え、前記オイルシールに、前
記貫通穴を前記アクスルハウジングの内面から塞
ぐ一方、前記ホイールハブ内の内圧と前記溝内に
溜つたオイルの自重とが働いた際に前記リヤアク
スル側に向かつて撓むリツプを設けたことを特徴
とする全浮動式リヤアクスルの洩れオイルリター
ン装置。 a substantially cylindrical axle housing, a rear axle serving as a drive shaft having disc-shaped flanges disposed within the axle housing and protruding from both ends of the axle housing, inner surfaces of both ends of the axle housing, and an outer periphery of the rear axle. each cylindrical wheel hub, which has one end fixed to the flange portion and the other end fixed to the brake drum, and accommodates both ends of the axle housing therein; Two tapered roller bearings are arranged between the inner circumferential surface of each wheel hub and the outer circumferential surface of both ends of the axle housing, and the load applied to each rear wheel is transferred to the axle through the bearings. In a fully floating rear axle that is supported by a housing so that no load other than driving or braking torque is applied to the rear axle, the inner surface of the flange portion is further outwardly than the outer peripheral surface of both ends of the axle housing. an oil slinger protruding toward the outer peripheral surface of the axle housing; an oil reservoir groove formed in a portion of the upper outer peripheral surface of the axle housing near the tip of the oil slinger; and a bottom surface of the groove and the inside of the axle housing. a through hole communicating with the oil seal, the oil seal closes the through hole from the inner surface of the axle housing, and when the internal pressure in the wheel hub and the weight of the oil accumulated in the groove act, the oil seal closes the through hole from the inner surface of the axle housing. A fully floating rear axle leakage oil return device featuring a lip that bends toward the side.