Abstract:  In order to improve the mobility of small robots and increase the diversity of movement gait, a jumping robot imitating locust bouncing was designed based on the body structure and movement mechanism of locusts, and the main body was made by 3D printing. And for reproducing the locusts bouncing mechanism, a torsion spring was installed at the joints of the robot body to simulate the locusts SLP(semilunar energy storage) mechanism. When the robot met an obstacle, the torsion spring released the stored elastic potential energy and generated a ground reaction force, which realized the robots bouncing and thus crossed the obstacle. The robot might imitate the locusts jumping actions, and simulate the locusts flexibility to a certain extent. It was experimentally verified that the robot has good jumping performance, with a jumping distance of up to 100 cm and a jumping height of up to 120 cm which is about 15 times of the own length.

Key words: bionic, locust, bouncing mechanism, torsion spring, 3D printing

摘要： 为了提高小型机器人的机动性，增加运动步态的多样性，基于蝗虫的身体结构和运动机理设计了一款仿蝗虫弹跳的跳跃机器人，机身主体采用3D打印制作而成。为了复现蝗虫的弹跳动作机理，在机器人主体的连接处安装了扭转弹簧来模拟蝗虫的SLP机构（半月形储能机构），当机器人遇到障碍物时，扭转弹簧将储存的弹性势能释放，产生地面反作用力，实现机器人的弹跳从而越过障碍物。经实验验证，该机器人具有良好的跳跃性能，其跳跃距离可达100 cm，跳跃高度可达120 cm，约为自身身长的15倍。

关键词: 仿生, 蝗虫, 弹跳机构, 扭转弹簧, 三维打印