The invention discloses a rear fork mechanism which comprises a left rear fork seat and a right rear fork seat which are arranged on a motorcycle engine. The left rear fork seat and the right rear fork seat are respectively provided with a front shaft hole and a rear shaft hole, the middle of the left rear fork seat and the middle of the right rear fork seat are connected in a bilateral symmetry mode through a positioning piece so that the axes of the two front shaft holes in the left rear fork seat and the right rear fork seat can coincide, and the two rear shaft holes are used for being connected with a rear wheel assembly. The front shaft hole of the right rear fork seat is rotationally connected to an engine, the front shaft hole of the left rear fork seat is rotationally connected with an engine driving shaft, and a main chain wheel is arranged on the engine driving shaft and connected with a driven chain wheel through a chain. The main chain wheel, the left rear fork seat and the right rear fork seat form the same rotating center, so that the chain on the main chain wheel, the left rear fork seat and the right rear fork seat can synchronously move around the engine driving shaft, the situation that the chain on the main chain wheel and the chain on the driven chain wheel are loosened due to bumping in the driving process is avoided, and the driving safety is improved.

    本发明公开一种后叉机构,包括设置在摩托引擎上的左后叉座和右后叉座;左后叉座和右后叉座均设有前轴孔和后轴孔,左后叉座中部和右后叉座中部通过定位件左右对称连接使得左后叉座和右后叉座上两个前轴孔的轴线重合,两个后轴孔用于连接后轮总成,后轮总成上设有从链轮,右后叉座的前轴孔转动连接在引擎上,左后叉座的前轴孔与引擎驱动轴转动连接,引擎驱动轴上设有主链轮,主链轮通过链条与从链轮连接。本发明的主链轮与左后叉座和右后叉座形成相同的转动中心,使得主链轮上的链条与左后叉座和右后叉座能够绕着引擎驱动轴同步运动,避免驾驶过程中主链轮和从链轮上的链条因颠簸而时紧时松,提高驾驶的安全性。


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    Title :

    Rear fork mechanism


    Additional title:

    一种后叉机构


    Contributors:
    CHEN RONGYI (author) / HUANG XINJUN (author) / HUANG WEIQIN (author) / ZHANG ZONGXUN (author)

    Publication date :

    2025-03-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62K Fahrräder , CYCLES



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