Synchronizing ring assembly and method for forming the friction linings of a synchronizing ring
A technology of synchronous rings and friction plates, which is applied to gear transmission mechanisms, clutches, mechanical drive clutches, etc., and can solve the problems of high manufacturing costs
Inactive Publication Date: 2014-07-09
OTTO FUCHS
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Problems solved by technology
The production costs for producing such an intermediate ring with two friction surfaces provided by the friction lining and each assigned to a different friction pair are therefore correspondingly high
Method used
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[0017] In the exemplary embodiment shown, the synchronizer ring stack 1 consists of three individual synchronizer rings 2 , 3 , 4 . Synchronizer ring 2 is the inner synchronizer ring. Synchronizing ring 3 is an intermediate ring. The synchronizer ring 4 is the outer synchronizer ring in the synchronizer ring stack 1 . The inner synchronizer ring 2 and the outer synchronizer ring 4 are made of brass material, specifically in the exemplary embodiment shown by a forging process. The inner conical surface 5 of the synchronizing ring 2 is coated with the friction lining 6 by injection molding. In contrast, the outer friction surface 7 of the brass synchronizer ring 2 is not coated. The friction surface 7 forms the friction surface of the first friction pair of the synchronizer ring pack 1 . The friction surface 7 cooperates with the first friction surface 8 of the steel synchronizing ring 3 . Synchronizing ring 3 of steel material is a deep-drawn shaped body made of sheet meta...
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A synchronized ring stack comprising at least two synchronized rings (2, 3, 4). The at least two synchronizing rings (2, 3, 4) each have a friction surface (7, 8; 15, 16) which can be mutually coupled to form a friction pair. At least one of the two synchronizer rings is made of steel, while the other synchronizer ring is made of brass material. Synchronizing rings made of brass have a structure in which particles P of higher hardness are incorporated into a crystalline base material of lower hardness. The complementary friction surfaces (8, 15) of the friction pair of the synchronizing ring (3) made of steel are formed by friction linings (13, 14) made of an organic binder with filler particles incorporated therein , wherein the filler particles have a higher hardness than the binder. A method for forming a friction lining of a synchronizing ring (3) having two friction linings (13, 14) arranged concentrically to one another, in which it is provided that an injection-moldable and / or pressure-injectable plastic material is used, and The plastic material is carried out from one side of the ring section (9) to be coated by means of plastic injection molding or injection molding, and the friction lining material passes through interruptions (11, 12) in the ring section (9) ) is deflected from the casting side onto an annular segment surface designed to form friction surfaces (13, 14).
Description
technical field [0001] The invention relates to a synchronizing ring stack, which comprises at least two synchronizing rings, each of which has a friction surface, and the friction surfaces can be mutually connected in order to form a friction pair, wherein at least One of the two synchronizer rings is made of steel, while the other synchronizer ring is made of brass material. Furthermore, the invention relates to a method for forming a friction lining of a synchronizing ring having two friction linings arranged concentrically to one another. Background technique [0002] In a synchronous shift transmission, the shafts which are to be frictionally connected to one another during a gear change are synchronized in their speeds before the frictional engagement is established. For this purpose, the individual gears of such transmissions are synchronized one or more times. Synchronization is established using a sync ring. The synchronizing rings each have a friction surface wh...
Claims
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IPC IPC(8): F16D23/02
CPCF16D23/025F16D2300/10F16D2250/00F16D2200/0021F16D2200/0026F16D23/02
Inventor J.芒斯特H.格默特H-J.雷克特恩
Owner OTTO FUCHS