JPH0369739U

JPH0369739U -

Info

Publication number: JPH0369739U
Application number: JP13201789U
Authority: JP
Priority date: 1989-11-13
Filing date: 1989-11-13
Publication date: 1991-07-11
Anticipated expiration: 2004-11-13
Also published as: JP2517548Y2

Description

[Brief explanation of drawings]

第１図は、第２図の実施例の油圧シリンダ要部
を説明する断面図である。第２図は、本考案の一
実施例のベルト式無段変速機の構成を説明する骨
子図である。第３図は、第２図の副変速機のレン
ジと摩擦係合装置との関係を説明する図である。
第４図は、第１図に示す実施例のアウターシリン
ダのベアリングの側面に対向する側の側面図であ
る。１２……ＣＶＴ（ベルト式無段変速機）、２６
……入力軸（回転軸）、３４……出力軸（回転軸
）、３６，３８……可変プーリ、４０……伝動ベ
ルト、４２，４４……固定回転体、４６，４８…
…可動回転体、５０，５２……油圧シリンダ（油
圧駆動装置）、８０……外周壁、８２……円筒部
、８４……フランジ部、８６……インナーシリン
ダ、８８……アウターシリンダ、９０……ピスト
ン部材、９４……ベアリング、１１２……受油孔
、１１４……凹溝。 FIG. 1 is a sectional view illustrating the main parts of the hydraulic cylinder of the embodiment shown in FIG. 2. FIG. FIG. 2 is a schematic diagram illustrating the configuration of a belt type continuously variable transmission according to an embodiment of the present invention. FIG. 3 is a diagram illustrating the relationship between the range of the sub-transmission shown in FIG. 2 and the frictional engagement device.
FIG. 4 is a side view of the side of the outer cylinder of the embodiment shown in FIG. 1 that faces the side surface of the bearing. 12...CVT (belt type continuously variable transmission), 26
...Input shaft (rotating shaft), 34... Output shaft (rotating shaft), 36, 38... Variable pulley, 40... Transmission belt, 42, 44... Fixed rotating body, 46, 48...
...Movable rotating body, 50, 52...Hydraulic cylinder (hydraulic drive device), 80...Outer peripheral wall, 82...Cylindrical part, 84...Flange part, 86...Inner cylinder, 88...Outer cylinder, 90... ... Piston member, 94 ... Bearing, 112 ... Oil receiving hole, 114 ... Concave groove.

Claims

[Claims for Utility Model Registration] A fixed rotating body provided on each of a pair of rotating shafts and fixed to the rotating shaft; a pair of variable pulleys around which a transmission belt is wound, and a cylindrical pulley protruding from the outer periphery of the movable rotary body in parallel with the axis of the rotating shaft toward the side opposite to the transmission belt. It has an outer peripheral wall, a cylindrical part whose one end is fixed to the rotating shaft, and a flange part extending from the other end of the cylindrical part to the outer peripheral side, and the outer peripheral edge of the flange part slides inside the outer peripheral wall. an inner cylinder movably fitted, a bottomed cylindrical outer cylinder fixed to the rotating shaft and having an inner circumferential surface facing the outer circumferential surface of the cylindrical portion of the inner cylinder, and a tip end of the outer circumferential wall. an annular piston member fixed to and slidably fitted between the outer peripheral surface of the cylindrical portion of the inner cylinder and the inner peripheral surface of the outer cylinder, and drives the movable rotating body in the axial direction. and a hydraulic drive device for changing the effective diameter of the variable pulley, the lubricating oil passing in the axial direction through a bearing that rotatably supports the rotating shaft is applied to a side surface of the bearing of a member adjacent to the bearing. In a belt-type continuously variable transmission of a type in which oil is received in receiving holes opened at opposing positions and guided to a combination surface of the outer peripheral wall and the piston member fixed thereto, the oil of the bearing of the member adjacent to the bearing is guided. 1. A belt-type continuously variable transmission, characterized in that a groove is formed at a position facing the side surface, and the oil receiving hole is opened in the groove.