The limiting structure is structurally composed of the lower steel bowl, a lower bearing and the lower baffle, the lower steel bowl comprises a pipe head, a bearing seat and a step, the lower bearing is arranged in the lower steel bowl, the lower baffle is arranged below the lower bearing, and the lower baffle is arranged below the lower bearing. The front fork is characterized in that 1-N upper protruding blocks are arranged on a step of the lower steel bowl making contact with a front fork head tube, two lower protruding blocks are arranged outside a plane of a bearing seat opening of the lower steel bowl, two protruding blocking pieces are arranged on the outer edge of a chassis of the lower blocking piece, the protruding blocking pieces of the lower blocking piece and the lower protruding blocks of the lower steel bowl are located on the same plane, and the protruding blocking pieces of the lower blocking piece and the lower protruding blocks of the lower steel bowl are located on the same plane. The front wheel assembly has the advantages that due to the fact that the convex blocking piece of the lower blocking piece and the lower protruding block of the lower steel bowl are located on the same plane, the rotation direction of the front wheel can be limited within a certain rotation angle range; due to the fact that the lower steel bowl is low in height, materials are reduced, and material cost can be saved.

    本发明公开了一种助动车下钢碗和下档的限位结构和制造工艺,其结构由下钢碗、下轴承和下档组成,所述的下钢碗包括管头、轴承座和台阶,下钢碗内有下轴承,下轴承下有下档,其特征在于:与前叉车头管接触的下钢碗的台阶上有1∽N个上凸块,在下钢碗的轴承座口的平面外有2个下凸块,所述的下档的底盘外边上有2个凸档片,所述下档的凸档片与下钢碗的下凸块在同一平面,所述的上凸块和下凸块用冲压工艺完成的,有益效果是:由于所述的下档的凸档片与下钢碗的下凸块在同一平面,可以限制前轮转动方向在一定转角范围内;由于下钢碗的高度低、用料就会减少,可以节约用料成本。


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    Title :

    Limiting structure of lower steel bowl and lower stopper of moped and manufacturing process


    Additional title:

    一种助动车下钢碗和下档的限位结构和制造工艺


    Contributors:
    LI DE (author)

    Publication date :

    2022-07-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62K Fahrräder , CYCLES / B23P Sonstige Metallbearbeitung , OTHER WORKING OF METAL



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