Pin-type multi-chip synchronizer

Abstract

The invention discloses a novel lock pin type multi-disk synchronizer. Friction disks are sequentially arranged between adjacent gear shifting gears and casings of friction disks in different shape and at appropriate taper, a combined sleeve is directly meshed with an output shaft through a spline, the combined sleeve is connected with the casings of the friction disks through location pins, a lock pin is in rigid connection with the casings of the friction disks, and a spring is positioned in a radial hole of the combined sleeve. The friction disks have appropriate taper, the taper can guarantee that friction force required by work can remain between the friction disks under the situation of the fewest friction disks, synchronous time in shifting is shortened, reaction speed of the synchronizer can be guaranteed in shifting, shifting time is reduced, and automobile maneuverability is greatly improved. Simultaneously, the novel lock pin type multi-disk synchronizer can increase or reduce the number of the friction disks according to different load vehicle types so as to change synchronous friction force, reduce selection on materials of the friction disks and greatly widen the application range.

Description

Technical field [0001] The invention relates to the technical field of automobile transmission devices, in particular to a synchronizer. Background technique [0002] Among medium and heavy-duty truck gearboxes, lock pin synchronizers are the most common. Because the number of parts of the lock pin synchronizer is small, the average radius of the friction surface is large, which increases the torque capacity. The disadvantage is that the axial size is larger, but in the design of trucks, the size of the gearbox is less restricted. [0003] But in recent years, with the rapid development of trucks, other defects of the lock pin synchronizer have also been exposed. The main manifestation is that the synchronization time is too long and the service life is short. [0004] The wet clutch is an important part of the transmission system. The transmission system is connected to the power source through it, which can make the vehicle start smoothly, reduce the impact of shifting of the ve...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a locking pin type multi-plate synchronizer, which changes the arrangement of the friction plates into an inclined arrangement, and makes full use of the advantages of the multi-plate structure to transmit large torque and the advantages of inclined placement to expand the friction torque, thereby solving the problem of the locking pin type. Synchronizer shifting time is long, service life is short, etc.

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