一种新型救护担架车运动过程的分析与研究

Movement analysis for semiautomatic rescue stretcher vehicle

在分析现行担架功能的基础上 ,设计了一种新型半自动救护担架车 ,利用列表方法对担架车九个阶段的运动过程进行了详细描述 ;车体结构上选择 13个点作为描述车体各点运动的关键点 ,采用矩阵理论对担架车上、下救护车运动过程的任意点位置、速度、加速度进行求解 .通过计算结果分析 ,找出了运动过程中加速度最大点和速度突变点的位置 ,从而调整车体相关机械结构以消除冲击 ,使升降运动平稳 .半自动救护担架车与现行担架车相比具有运动平稳 ,使伤病员二次伤害小 。

The 9 movement phases of a new stretcher vehicle, the semiautomatic rescue stretcher vehicle, are described. 13 key points are selected from the framework of the semiautomatic rescue stretcher vehicle to describe the vehicle movement. The matrix theory is utilized to solve the locations, velocities and accelerations at any point during the movement of the semiautomatic rescue stretcher vehicle. The maximum acceleration and the maximum saltation of the velocity during the movement can be found out through eliminating the impact and keeping the movement stable. The semiautomatic rescue stretcher vehicle is more stable than the existing stretchers, and it can lessen secondary injury and save manpower as well.