The invention belongs to the technical field of internal transmissions, and particularly relates to a manual-automatic integrated internal variable speed hub and a bicycle. The manual-automatic integrated internal speed change hub is provided with the torque aid mechanism, in the downshift process, the first connecting piece and the second connecting piece rotate relatively, the first end and the second end of the first reset piece are gradually close to each other, the first reset piece is compressed, and at the moment, a first stop block of the first connecting piece leaves an avoiding area of a first aid pawl; the blocking to the first auxiliary pawl is relieved, and the first auxiliary pawl is jacked up under the acting force of the second reset piece and clamped into a first connecting groove of the torque restraining piece, so that the second connecting piece and the third connecting piece rotate in the same direction along with the torque restraining piece; the torque of the second transmission piece is sequentially transmitted to the second connecting piece, the third connecting piece and the operating device through the torque restraining piece, so that the occlusal force generated by the gear shifting pawl and the locking groove of the sun gear is overcome, the gear shifting pawl is smoothly retracted, and the downshift operation is smoothly completed.
本申请属于内变速器技术领域,特别涉及一种手自一体内变速花鼓及自行车。本手自一体内变速花鼓,设置有扭矩借助机构,在降挡过程中,第一连接件与第二连接件产生相对转动,第一复位件的第一端部和第二端部逐渐靠拢,第一复位件被压缩,此时第一连接件的第一挡块离开第一借助棘爪的避让区域,解除对第一借助棘爪的阻挡,第一借助棘爪在第二复位件的作用力下被顶起,卡入扭矩约束件的第一连接槽内,使得第二连接件、第三连接件跟随扭矩约束件沿着同一方向旋转,从第二传动件的扭矩通过扭矩约束件依次传递到第二连接件、第三连接件、操纵装置,从而克服换挡棘爪与太阳齿轮的锁止槽产生的咬合力,使换挡棘爪顺利收起,顺利完成降挡操作。
Manual-automatic integrated internal variable speed hub and bicycle
一种手自一体内变速花鼓及自行车
2023-12-01
Patent
Electronic Resource
Chinese
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