The crumple energy absorption structure comprises a first steering column, an expansion pipe, a second steering column and an overturning pipe, the expansion pipe comprises a diameter shrinkage part and a sliding part, the diameter shrinkage part is fixedly connected with the first steering column, the second steering column is provided with an end part, and the sliding part is arranged on the end part in a sleeving mode; the inner diameter of the diameter shrinkage part is smaller than the outer diameter of the end head part, one end of the turnover pipe is provided with a turnover part, the turnover part is fixedly connected with the second steering column, and the other end of the turnover pipe is fixedly connected with the first steering column. When the trigger force is low, the collision force and the collision energy are absorbed through the overturning deformation of the overturning pipe; when the triggering force is high, most energy and impact are absorbed through crumple deformation of the diameter shrinkage part, the problem that the threshold value of the energy absorption crumple triggering force of an existing steering column is difficult to set is solved, the driving experience of a driver is improved, and the steering column can be arranged on a commercial vehicle and other large vehicles easily.
本申请涉及一种溃缩吸能结构,包括第一转向柱、膨胀管、第二转向柱以及翻转管,膨胀管包括径缩部和滑行部,径缩部与第一转向柱固定连接,第二转向柱设置有端头部,滑行部套设于端头部上,并与端头部沿轴线方向第一转向柱的轴线方向滑动连接,径缩部内径小于端头部的外径,翻转管一端设置有翻折部,翻折部与第二转向柱固定连接,翻转管另一端与第一转向柱固定连接。当触发力较低时,通过翻转管的翻转变形吸收碰撞力和碰撞能量;当触发力较高时,通过径缩部的溃缩变形吸收大部分能量和冲击,解决了现有的转向管柱吸能溃缩触发力的阈值难以设置的问题,增加了驾驶员的驾驶体验,有助于设置在商用车及其它大型车辆上。
Crumple energy absorption structure and steering column assembly
一种溃缩吸能结构及转向管柱总成
2023-06-23
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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