The invention relates to the technical field of transmissions, in particular to a flexible driving mandrel and a gear adjusting device.The flexible driving mandrel comprises a mandrel body and a plurality of positioning bosses arranged on the outer wall of the mandrel body in the axial direction, and the mandrel body is sleeved with gear driving blocks corresponding to the positioning bosses in position and number; the adjacent gear driving blocks and the adjacent positioning bosses are evenly distributed in the circumferential direction of the mandrel in an angle mode. An avoiding notch matched with the positioning boss is formed in the edge of a center hole of the gear driving block and is used for providing a swingable gap for the positioning boss; a clamping groove is formed in the outer edge of the gear driving block; and one end of the torsion spring is fixed on the mandrel, and the other end of the torsion spring is clamped on the gear driving block. According to the invention, heavy-load gear-up and light-load gear-down can be realized without stopping feet, power loss caused in the gear-shifting process can be avoided, the gear-shifting process is more flexible, riding is more comfortable, and high-low gear switching is rapid and stable.
本发明涉及变速器技术领域,尤其涉及一种柔性驱动芯轴及档位调节装置,一种柔性驱动芯轴,包括芯轴以及芯轴外壁沿轴向设置的若干定位凸台,芯轴上套装有与定位凸台的位置和数量对应的档位驱动块,相邻档位驱动块之间、相邻定位凸台之间均沿芯轴周向呈角度均匀分布;档位驱动块在其自身中心孔的边缘设有与定位凸台相配合的让位缺口,用于为定位凸台提供可摆动的间隙;档位驱动块的外边缘设有卡槽;还包括有扭簧,扭簧的一端固定在芯轴上,另一端卡在档位驱动块上。能够实现重载加档,轻载减档不停脚,能够避免换档过程中造成的动力损失,换档过程更加流程,骑行更加舒适,高低档位切换快速稳定。
Flexible driving mandrel and gear adjusting device
一种柔性驱动芯轴及档位调节装置
2024-12-06
Patent
Electronic Resource
Chinese
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |