Ratchet mechanism is often used in the reducer of the casting crane. This paper uses Pro/ENGINEER software to create the ratchet mechanism and simulate its running and studies the stress and deformation of the ratchet wheel pawl by Pro/MECHANICA.

• 针对铸造起重机用减速器常采用的棘轮装置,采用三维实体造型软件Pro/ENGINEER建立其实体模进行运动仿真,利用Pro/MECHANICA有限元分析模块对棘爪进行应力、应变分析,得到棘爪需加强的部分。