Anti-adhesion structure of synchronizer

Abstract

The invention provides an anti-adhesion structure of a synchronizer. The anti-adhesion structure can prevent a synchronizing ring from adhering to a gear and can ensure the volume of the synchronizer. The synchronizer is provided with a synchronizing ring (5), and the synchronizing ring (5) is in frictional contact with a variable gear (1) so as to make the variable gear (1) rotate synchronously along with a joint sleeve (3). The joint sleeve is driven by a rotating shaft to rotate and can move in the axial direction. The anti-adhesion structure comprises a first conical part formed on the variable gear and a second conical part formed on the synchronizing ring, wherein the first conical part is provided with a first gear conical surface (12a) which is located on the large-diameter side and a second gear conical surface (12b) which is located on the small-diameter side and has a small inclination angle; and the second conical part is provided with a first synchronizer conical surface (52a) and a second synchronizer conical surface (52b), and the shape of the second conical part is matched with the shape of the first conical part of the variable gear and can be in frictional contact with the first conical part of the variable gear.

Description

technical field [0001] The invention relates to an anti-adhesion structure of a synchronizer which prevents synchronous rings from adhering to gears. Background technique [0002] In the automobile transmission, in order to avoid the phenomenon of gear toothing when shifting gears, a synchronizer is used for torque transmission. The synchronizer has a synchronizing ring. When shifting gears, the synchronizing ring of the synchronizer first contacts with the gear, and the torque is transmitted through friction, so that the gear, the synchronizing ring and the sleeve arranged on the rotating shaft gradually realize synchronous rotation. After the synchronous ring is synchronized, the synchronous ring is opened to make it rotate an angle relative to the gear, so that the locking teeth of the adapter sleeve can move to the position where they mesh with the locking teeth of the gear, and finally shift gears (Patent Documents 1-3) . [0003] In recent years, as the output power ...

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Problems solved by technology

[0004] However, due to the high friction coefficient of the resin material used, its adhesion is also high. Therefore, especially in the state where the synchronizer of the new product has not been run in well, after the gear and the synchronizer ring are synchronized, the gear and the synchronizer The rings are easy to stick together (that is, the so-called self-locking phenomenon occurs), and it is difficult to open the synchronous ring to move the locking teeth of the sleeve to the position where the locking teeth of the gear mesh, and the shift operation cannot be completed

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