Synchronizers for manual transmissions and manual transmissions

Abstract

The invention discloses a synchronizer of a manual transmission, which is arranged between two adjacent gears of the manual transmission, and the synchronizer includes a gear sleeve, a gear hub, a slider, and a joint outer tapered surface of the gear gear. The synchronous ring connected, in which the gear sleeve is provided with three evenly distributed slider positioning teeth, and each slider positioning teeth is provided with a limit tooth at the opposite end on both sides of the slider positioning teeth; the gear hub is provided with sliders for assembling the slider The block groove is provided with a limit rib on the upper part of the slider groove; the slider is provided with a limit wing for cooperating with the limit rib of the gear hub to prevent the radial displacement of the slider, and a limit wing for matching with the tooth sleeve. The limit tooth is matched with the limit boss to prevent the slider from coming out axially. The invention adopts an innovative radial and axial limit structure to ensure that the slider will not break away from the gear sleeve and the gear hub when shifting gears, and the gear sleeve adopts the scheme of small modulus and thin and high teeth, which is beneficial to the synchronization of the synchronizer. Thin design.

Description

Technical field [0001] The invention relates to a manual transmission system, in particular to a synchronizer of a manual transmission, and a manual transmission with the synchronizer. Background technique [0002] Since 2009, my country has surpassed the United States to become the world's largest automobile producer and marketer. However, while my country's automobile industry has made such remarkable achievements, it is also facing severe problems such as rising oil prices and increasing energy conservation and environmental protection requirements. After more than one hundred years of development and innovation, the current fuel consumption reduction technology of automobile engines has fallen into an innovation bottleneck, and there is no possibility of major innovation breakthroughs in a short time. Therefore, the hope of reducing automobile energy consumption can only seek breakthroughs in systems other than engines. Under this circumstance, the transmission is the core ...

AI Technical Summary

Problems solved by technology

[0004] According to the survey, the existing two-way synchronizer, the ultra-thin synchronizer with an axial width of less than 17.5 mm, the main structural feature is that the ring spring is used instead of the synchronizer slider for pre-synchronization, so as to shorten the gear sleeve and gear hub of the synchronizer Axial width, but this solution is difficult to control due to the deformation of the ring spring, which is prone to problems such as incomplete pre-synchronization, forward and reverse gear sticking, etc.

[0005] On the other hand, as disclosed in Chinese Invention Patent Application No. 200910307120.5, a "synchronizer with an integrated slider that prevents falling out", its technical solution is limited to preventing the slider from falling out of the synchronizer, and cannot achieve an ultra-thin synchronizer structure

There is a rectangular block in the middle of the slider, and positioning buckles are designed at both ends of the gear sleeve to prevent the slider from falling out in the axial direction. The milling cutter is processed on the tooth sleeve and realizes mass production

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