Synchronizer locking structure

Abstract

The invention provides a synchronizer locking structure and belongs to the technical field of synchronizers. The synchronizer locking structure comprises a synchronizer sliding sleeve, an outer conical ring and a synchronizer gear hub. The synchronizer sliding sleeve, the outer conical ring and the synchronizer gear hub are mounted coaxially. First notches are formed in the outer circular face of the synchronizer gear hub, and locking bosses are arranged on the outer circular face of the outer conical ring. The locking bosses are mounted in the first notches after a synchronizer is synchronized. Short locking teeth are arranged on the inner circular face of the synchronizer sliding sleeve and used for being matched with the locking bosses so as to achieve the locking function. The locking areas of the short locking teeth and the locking bosses are large, so that the problems that in the prior art, due to the limitation of the axial sizes, the axial sizes of combining teeth on a conical ring are small; and the widths of spline teeth are limited, thus, the locking area of each tooth is small, and strength is low are solved, the reliability of the synchronizer is improved, and the service life of the synchronizer is prolonged.

Description

technical field [0001] The invention relates to the technical field of synchronizers, in particular to a synchronizer locking structure. Background technique [0002] Synchronizer is the main component to improve the shifting performance of mechanical automobile transmission, and it contributes greatly to reducing the labor intensity of the driver, improving the convenience of operation and the average life of the components of the transmission transmission system. Although different forms of synchronizers have different structures, their working principles and processes are the same, including friction elements, locking elements and elastic elements. When the synchronizer is working, the friction elements lean against each other under the action of axial force, and the friction torque is generated under the action of inertia moment, so that the two parts to be combined are gradually synchronized; the locking element is used to prevent forced gearing before synchronization, ...

AI Technical Summary

Problems solved by technology

However, due to the limited axial size, the axial size of the coupling teeth on the cone ring is small, and the width of the spline teeth is limited, which determines that the locking surface area on a single tooth is small and the strength is low

During the gearing process of the synchronizer, the locking surface on the cone ring will be impacted and worn due to the increase in gearing times, which may cause locking failure and affect the reliability and service life of the synchronizer

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